JP4178969B2 - Freezer refrigerator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a refrigerator-freezer, and particularly relates to improving the cooling efficiency of a refrigerator-freezer.
[0002]
[Prior art]
  In a general refrigerator-freezer, in a complicated configuration in which an upper case and a lower case are provided in a cooling chamber for storing non-cooled objects, for example, temperature differences can occur between the upper and lower positions and the left and right positions of the cooling chamber. Prone to occur. In order to maintain the quality of the refrigerator, for example, in the freezing room, which is one of the cooling rooms, it must be cooled to a reference temperature (for example, about −18 ° C.) or less at all positions in the freezing room. However, if there is uneven temperature, the hottest part in the freezer compartment will be below the reference temperature, and the other parts will be cooled to a temperature much lower than the reference, leading to a deterioration in power consumption. It is.
  Further, when the object to be cooled is packed in the cooling chamber without any gap during actual use, temperature unevenness occurs due to the deterioration of the air permeability, which is considered undesirable from the viewpoint of uniform food preservation.
[0003]
  In order to improve such temperature unevenness, various devices have been made in the conventional refrigerator-freezer. For example, a cold air circulation duct that rotates by discharging cold air is provided rotatably in the freezer compartment and the refrigerator compartment, and the cooling efficiency is improved by making the supply of cold air uniform (see, for example, Patent Document 1).
  In addition, the ridges provided from the front of the freezer compartment case and the ceiling are brought into contact with each other to shut off the heat entry space near the door gasket and the inside of the freezer compartment case, thereby making the inside temperature uniform and improving the cooling efficiency. (For example, refer to Patent Document 2).
  In addition, an aluminum tray is installed on the bottom surface of the freezer compartment to improve the cooling efficiency by making the temperature distribution on the bottom surface uniform (see, for example, Patent Document 3).
[0004]
[Patent Document 1]
          Japanese Utility Model Publication No. 5-69579 (page 5-8, FIG. 1)
[Patent Document 2]
          Japanese Patent Laid-Open No. 9-79728 (page 6-7, FIG. 4)
[Patent Document 3]
          Japanese Patent Laid-Open No. 10-38456 (page 3-4, FIG. 2)
[0005]
[Problems to be solved by the invention]
  In the conventional refrigerator-freezer, in which the cold air circulation duct is rotated by discharging cold air, the cold air circulation duct is provided in the center of the freezer room and the refrigerator room, and the storage space of the freezer room and the refrigerator room is narrowed and stored. This hinders the taking in and out of the cooling object. In addition, in the structure in which the protrusions provided from the ceiling of the freezer compartment case and the ceiling are brought into contact with each other so that the heat entrance space near the door gasket and the inside of the freezer compartment case are blocked, It is surrounded by the part and part of the gasket. For this reason, cold air contacts the gasket surrounding the heat entry space, and the temperature of the heat entry space decreases. Therefore, there is a problem that the temperature difference between the heat entrance space and the outside of the refrigerator becomes large, and cold air leakage occurs in this portion. In addition, in the configuration in which an aluminum tray is installed on the bottom surface of the freezer compartment and the temperature distribution on the bottom surface of the container is made uniform, only the bottom surface is made uniform, and temperature distribution occurs in a three-dimensional space called a cooling chamber. It was inadequate.
[0006]
  The present invention has been made to solve the above-described problems, and has a configuration that does not hinder the entry and exit of an object to be cooled in the cooling chamber, and improves and equalizes the temperature distribution in the cooling chamber. The purpose is to reduce energy loss and improve cooling efficiency.
  In addition, by ensuring ventilation when storing the object to be cooled in the cooling chamber, the temperature variation in the cooling chamber is reduced even under various usage conditions, such as the amount of the object to be cooled and the arrangement in the cooling chamber. The purpose is to improve.
  Another object of the present invention is to reduce the heat leakage from the wall surface of the cooling chamber or from the outside into the cooling chamber and improve the cooling efficiency.
[0007]
[Means for Solving the Problems]
  A refrigerator-freezer according to the present invention includes a cooling chamber for storing an object to be cooled,A cooling chamber having a back side cold air outlet provided on the rear side of the room for storing the object to be cooled and blowing out the cold air from the cooler, and the cool air generated by the cooler is blown from the rear cold air outlet to the cooling chamber. A blower fan, a cooling object storage inner container that is installed in the cooling chamber, has a plurality of holes, and has a diameter of a front hole in the cooling chamber larger than a diameter of a rear hole, and the object to be cooled A cooled object storage outer container that surrounds the outside of the storage inner container via a cold air guide passage, and sends the cool air that is sent by the blower fan and flows through the cold air guide path to the inner side of the stored object It is configured to blow out from a plurality of holes provided in the container.
[0008]
  The refrigerator-freezer according to the present invention isA cooling chamber for storing an object to be cooled, a blower fan for blowing cool air generated by a cooler to the cooling chamber through a cold air passage, a container for storing an object to be cooled installed in the cooling chamber, and the object to be cooled A plurality of dents provided on the inner wall surface of the article storage container, and a lip formed between the dents, wherein the adjacent lips are configured to have a height difference, and a plurality of the dents are provided in the cooling chamber. The cool air can flow or the flow direction of the cool air can be changed by flowing the cool air.
[0009]
  Also,A plurality of cold air blowing portions that communicate the cold air passage and the cooling chamber and blow cold air into the cooling chamber, and a cold air blowing portion that blows cold air into the cooling chamber among the plurality of cold air blowing portions for a predetermined time And a control means for switching each time, and the flow of the cold air blown out from the cold air blowing portion is changed in the cooling chamber.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
  Embodiment 1 of the present invention will be described below. FIG. 1 is a refrigerant circuit diagram showing a refrigeration cycle of a refrigerator-freezer (hereinafter referred to as a refrigerator). The gas refrigerant discharged from the compressor 32 first flows into a condensing pipe located below the evaporation plate where drain water accumulates, and then condensing pipes arranged on the side and back of the refrigerator, and a dew-proof pipe 21 arranged on the front. It flows into and is condensed. Then, after expanding under reduced pressure with a capillary, it evaporates with the cooler 1 and returns to the compressor 32 again. When the refrigerant condenses in the condensing pipe, the drain water accumulated on the evaporating plate is evaporated, and the dew prevention pipe 21 prevents dew from the front cabinet part where the temperature is lowered due to cold air leakage from the periphery of the refrigerator door. Further, when the refrigerant evaporates in the cooler 1, the air circulating in the refrigerator is cooled to cool air. This cold air is blown to each cooling chamber by the blower fan 3.
[0011]
  FIG. 2 is an explanatory view showing the arrangement of the dew proof pipe 21, as viewed from the front of the refrigerator. In this way, the dew-proof pipe 21 is provided so as to surround the doors of the cooling chambers such as the vegetable room 28, the switching room 29, the refrigerator room 30, and the freezer room 31, and the periphery of the door by the heat of the refrigerant flowing in the dew-proof pipe 21 This prevents the front cabinet from getting dew. However, although the condenser and the dew proof pipe 21 are insulated by, for example, a urethane heat insulating material, the temperature of the refrigerant flowing through this is about 30 ° C., which is considerably higher than the internal temperature. For this reason, this heat enters the cooling chamber, leading to a temperature distribution in the cooling chamber such that the temperature is high near the dewproof pipe 21 and low at a far portion.
[0012]
  FIG. 3 is a perspective view showing the freezer compartment and its surroundings of the refrigerator according to this embodiment, and FIG. 4 is a longitudinal sectional view parallel to the side of the refrigerator. The refrigerator has a plurality of cooling chambers such as a vegetable chamber 28, a switching chamber 29, a refrigeration chamber 30, and a freezing chamber 31, and is controlled to maintain a cooling temperature set for each. FIG. 5 is an explanatory diagram showing the flow of cool air near the freezer compartment, and shows a longitudinal section parallel to the side surface.
  Hereinafter, based on FIG. 3, FIG. 4, FIG. 5, the cold air circulation system of the refrigerator according to this embodiment will be described. A part of the air cooled by the cooler 1 is blown by the blower fan 3 installed in the air path grill 2, and is branched into a plurality of parts to circulate through the respective cooling chambers to cool the freezing room 31 and the refrigerating room. is doing. In the refrigerator shown here, the cooler 1 is disposed on the back of the vegetable compartment 28, and the cooling compartments such as the freezer compartment 31 are disposed above and below the vegetable compartment 28. It is possible to maintain a sufficiently low temperature without circulating cold air.
[0013]
  For example, when the freezer compartment 31 is cooled, the air cooled by the cooler 1 passes through the freezer compartment top surface air passage 34 which is a cold air passage above the freezer compartment top surface 26, and the freezer compartment top surface cold air outlet 5. To the freezer compartment upper case 7. The blown-out cool air circulates in the upper case 7 in the freezer compartment and cools the object to be cooled stored in the case 7. The cooled air flows into the freezer compartment lower case 8 from the ventilation slit 24 or is discharged from the front of the freezer compartment upper case 7 to the outside of the freezer compartment upper case 7. Further, a part of the cold air blown by the blower fan 3 is blown out from the freezer compartment backside cold air outlet 4 to the freezer compartment lower case 8. Then, the object to be cooled in the freezer compartment lower case 8 is cooled and discharged from the cool air discharge slit 18 to the outside of the freezer compartment lower case 8. After that, it passes between the outside of the freezer compartment cases 7, 8 and the inner wall of the freezer compartment 31, and returns to the cooler 1 again through the freezer compartment back cold air inlet 6.
[0014]
  As shown in FIG. 5, the freezer compartment door 20 is, for example, a drawer type, and a gasket 41 is provided as a packing on the inner edge of the freezer compartment door 20 to seal the freezer compartment 31 when the freezer compartment door 20 is closed. Furthermore, as shown in FIG. 2, a dew-proof pipe 21 is provided in the vicinity of the freezer compartment door 20 so as not to cause dew on the front cabinet portion of the refrigerator due to the leakage of cold air from the freezer compartment door 20. A refrigerant at about 30 ° C. is circulated.
[0015]
  Although the main cold air circulation system of the refrigerator is as described above, in this embodiment, an air flow that stirs the air in the cooling chamber is provided on the inner side of the blowout portion provided with the freezing chamber top surface cold air outlet 5. With the resulting stirring means. The case where the freezing room 31 is cooled as a cooling room, for example is demonstrated. A propeller fan 9 is rotatably installed in the freezer compartment top cold air outlet 5, and the propeller fan 9 is rotated by the cold air blowing force of the blower fan 3. When the propeller fan 9 rotates and the cool air sent by the blower fan 3 is blown into the freezer compartment 31 while changing the flow direction, the air in the freezer compartment 31 is agitated and a strong swirling flow is generated in the freezer compartment 31. Let Accordingly, it is possible to supply the cold air to the portion where the temperature is high because the cold air is difficult to reach in the freezer compartment 31. Therefore, the temperature distribution in the freezer compartment 31 can be equalized, and the cooling efficiency can be improved.
[0016]
  Further, a ventilation slit 24 is provided on the bottom surface of the freezer compartment upper case 7 to ensure ventilation of the freezer compartment upper case 7 and the freezer compartment lower case 8. For this reason, the effect of the cold air stirring by the propeller fan 9 can be spread to every corner of the freezer compartment lower case 8.
  In this embodiment, since the propeller fan 9 is rotated by the cold air blowing force sent by the blower fan 3, no special electric power is required, and the propeller fan 9 is placed in the freezer compartment top cold air outlet 5. With a simple configuration of mounting, the temperature distribution in the cooling chamber can be equalized. In particular, if the propeller fan 9 is made of a material having a light mass such as plastic, the flow resistance does not become large when the cold air is blown out, and the air can be efficiently stirred with the blowing force of the cold air.
  Further, as shown in FIG. 4B, the propeller fan 9 is embedded in the freezer compartment top surface 26 so that the thickness in the rotation axis direction is thin and the longitudinal direction is along the wall surface direction of the freezer compartment 31. Since it is installed, the air in the freezer compartment 31 can be stirred without narrowing the effective space in the refrigerator. Furthermore, there is no problem when the object to be cooled is taken in and out.
[0017]
  Further, in this embodiment, the propeller fan 9 is installed at a portion where the cool air is blown to the freezer compartment upper case 7 of the freezer compartment 31, but this is not a limitation. For example, it may be provided in a portion of the freezer compartment lower case 8 where cool air is blown out, or a cold air passage and a blowout portion blown by the blower fan 3 are provided on the back wall or side wall of the freezer compartment, and this blowout portion or blowout portion is provided. You may attach to the cold air path adjacent to a part. Also in this case, it attaches so that a longitudinal direction may follow the cooling chamber wall surface of the part which provided the blowing part. Furthermore, by installing the same propeller fan 9 in other cooling chambers such as the refrigeration chamber 30 and the switching chamber 29, it is effective in improving the temperature distribution in the refrigeration chamber 30 and the switching chamber 29.
  Here, in the configuration example shown in FIG. 3, the propeller fan 9 as the stirring means is embedded in the wall constituting the freezer compartment top surface 26 and is configured not to protrude from the inner wall surface of the freezer compartment 31. . By not projecting into the freezer compartment 31, the inside of the freezer compartment 31 can be widely used, and the stored object to be cooled can be prevented from being caught by the propeller fan 9. However, in the case of a cooling chamber that does not store the object to be cooled so much, even if a part of the propeller fan 9 protrudes to the cooling chamber side to some extent, there is no problem in taking in and out the object to be cooled. On the contrary, since the propeller fan 9 protrudes, the swirling flow blown out from the propeller fan 9 easily flows into the cooling chamber, and the effect of the stirring becomes large. Conversely, the flow direction of the cool air sent by the blower fan 3 is provided even if a part or all of the propeller fan 9 is provided in the freezer compartment top surface air passage 34 that is a cold air passage adjacent to the cold air blowing section. If it is configured so as to blow out into the freezer compartment 31 by changing the above, the same effect can be obtained.
[0018]
  Hereinafter, another configuration example of this embodiment will be described. FIG. 6 is an explanatory diagram showing a mechanism for rotating the propeller fan 9 using the power of the door opening / closing operation of the refrigerator compartment door 35. The rotating part of the refrigerator compartment door 35 and the spring 11 are connected via the interlocking gear 10. The spring 11 is a rotating force accumulating member, for example, a spring, and can store the rotating force in the spring 11 when the refrigerator compartment door 35 is opened and closed. The rotation center of the mainspring 11 and the rotation center of the propeller fan 9 are connected by a rotation shaft, and the propeller fan 9 is rotated by releasing the power stored in the mainspring 11. As the propeller fan 9 rotates, forced convection occurs in the freezer compartment 31 and the cold air in the freezer compartment 31 is agitated. That is, by changing the flow direction of the cold air sent by the blower fan 3 and blowing it out as a swirling flow to the freezer compartment 31, the cold air circulation in the freezer compartment 31 can be promoted and the temperature distribution can be improved.
[0019]
  In addition, when there are a plurality of rotary doors among a plurality of cooling chamber doors constituting the refrigerator, the rotation force of the plurality of doors may be stored. Moreover, it can also comprise so that the movement of a drawer-type door can be stored in a rotational force. Then, for example, the propeller fan 9 may be controlled to rotate by being opened little by little at predetermined time intervals. The propeller fan 9 may be rotated when it is detected that the temperature distribution in the freezer compartment has increased.
  Further, the propeller fan 9 may be rotatable by the cold air blowing force of the blower fan 3 and may be rotated according to the rotation operation of the cooling chamber door. If it is configured to be able to rotate with both forces, the propeller fan 9 can be rotated with either force even if the number of times of opening and closing the cooling chamber door is small and the cold air blowing force is small.
[0020]
  With such a configuration, the propeller fan 9 is rotated by utilizing the opening and closing of the door when using a normal refrigerator without requiring a special rotational driving force, so that the energy can be effectively used. it can.
  Further, a fan using the flow of cold air as shown in FIG. 3 may be provided, and a fan using the rotational force of the door shown here may be provided. For example, if one is provided on the freezer top surface 26 and the other is provided on the back wall of the freezer compartment, the temperature distribution in the freezer compartment 31 can be further equalized.
[0021]
  FIG. 7 is an explanatory view showing a mechanism for rotating the propeller fan 9 by effectively using the blowing force of the cool air sent by the blowing fan 3. A power take-out wind turbine 12 is provided in the freezer compartment top surface passage 34 that is a cold air passage, and the propeller fan 9 separated by a heat insulating portion constituted by the freezer compartment top surface 26 is rotated via the connecting gear 13. . The power take-off windmill 12 is rotated by the cold air flow sent by the blower fan 3, and the rotation speed is adjusted by the connecting gear 13 to rotate the propeller fan 9. By rotating the propeller fan 9 to change the flow direction of the cool air sent by the blower fan 3 and blowing it into the freezer compartment 31, a strong swirling flow is generated. By stirring the cool air in the freezer compartment 31 with this strong swirl flow, the temperature distribution in the freezer compartment 31 can be improved.
  Since the propeller fan 9 is rotated by the flow of cold air, the air in the freezer compartment 31 can be stirred without using a special power source, as in the configuration of FIG. Further, in this configuration, since the power take-out wind turbine 12 is provided so as to intersect substantially perpendicularly to the flow of cold air, the rotational force can be obtained more efficiently than the rotation of the propeller fan 9 in the configuration of FIG. Can do. In addition, since it is not necessary to provide the propeller fan 9 in the air passage, the degree of freedom of the attachment position is increased. Further, by changing the gear ratio of the connecting gear 13 to the power take-off windmill, the rotation speed of the propeller fan 9 can be changed, and the cold air stirring speed in the freezer compartment 31 can be adjusted.
[0022]
  Further, when a part of the propeller fan 9 is provided to protrude into the freezer compartment 31 as in the configuration of FIG. 7, the cover 33 may be attached so as to cover the propeller fan 9. Thus, the object to be cooled does not come into contact with the propeller fan 9 or the hand does not come into contact with the object when the object to be cooled is taken in or out, thereby ensuring reliability.
  Further, in the configuration of FIG. 7, when it is not necessary to change the rotation speed with respect to the rotation of the power take-off wind turbine 12, the rotation shafts of the power take-off wind turbine 12 and the propeller fan 9 may be the same axis. In this case as well, the power take-off wind turbine 12 can efficiently change the blowing force of the cold air to the rotational force of the propeller fan 9, and the axial length can be shortened compared to the configuration of FIG. It can be placed inside the surface 26.
[0023]
  Hereinafter, still another configuration example of this embodiment will be described. FIG. 8 is a perspective view showing the vicinity of the freezer compartment 31 according to this embodiment. This embodiment has, for example, a rotating duct 14 as stirring means for stirring the air in the freezer compartment 31. FIG. 9A is a perspective view showing the rotating duct 14, and FIG. 9B is a top view. As shown in FIG. 9, the rotating duct 14 flows in cold air from above the inlet 14 a of the duct 14, and blows out cold air in four directions from the outlet 14 c through a plurality of, for example, four tubes 14 b. The pipe 14b forms a flow path that extends in the radial direction of a circle centered on the inflow port 14a. Further, as shown in FIG. 9B, the outlet 14c is oriented so as to blow cool air backward in the rotational direction. By blowing cold air in all directions, an air flow that stirs air in the freezer compartment 31 is generated, and the temperature distribution can be equalized.
[0024]
  As with the propeller fan 9 of FIG. 4, the rotating duct 14 is rotatable so that its longitudinal direction is along the wall surface direction in which the freezer compartment top surface cold air outlet 5 is provided, that is, inside the freezer compartment top surface 26. Install as follows. The inflow port 14a is connected to the freezer compartment top air passage 34 so that cold air can flow in. The four pipes 14b and the outlet 14c rotate inside the freezer compartment top wall 26 with a certain distance from the surroundings. Provide freely. Further, the portion of the outlet 14c may protrude into the freezer compartment 31 to some extent.
  The cool air sent out from the cooler 1 by the blower fan 3 flows in from the inlet 14a and blows out to the surroundings from the outlet 14c. The outlet 14c is configured to blow out in a substantially tangential direction of the circumference formed by the rotation trajectory of the rotating duct 14, and the rotating duct 14 is arranged in the cold air blowing direction as shown in FIG. And rotate in the opposite direction. In addition to the cold air being blown out to a plurality of locations on the four sides of the freezer compartment 31, the blow position is changed every moment by the rotation described above, so that the flow direction of the cold air is changed and blown out. For this reason, the air in freezer compartment 31 is further stirred rather than stirring with a propeller fan, and temperature distribution is equalized.
[0025]
  In particular, in this configuration, instead of blowing out from the pipe 14b as it is in the radial direction, the blowout opening 14c is provided at the tip of the pipe 14b and blows out in the rear direction of the rotation direction, that is, in the direction having the circumferential component. Rotational power can be obtained.
[0026]
  In the structure described here, since the inlet 14a is installed inside the wall of the freezer compartment top surface 26, the effective space in the cabinet is not narrowed, and there is no problem in taking in and out the object to be cooled. However, although the attachment position of the rotating duct 14 is the freezer compartment top surface 26, it may be attached to the back wall or side wall of the freezer compartment.
  Further, the number of the pipes 14b and the outlets 14c is not limited to four and four, and can be rotated as long as it is two or more, and any number is possible.
  Moreover, the blowing direction of the blowing port 14c does not need to be a tangential direction, and rotational power can be obtained as long as it is behind the rotating direction. In addition, if the cool air blowing direction of the air outlet 14c is inclined to the freezer compartment 31 side to some extent, the flow of the cold air smoothly goes to the freezer compartment 31, so that a larger stirring force can be obtained.
[0027]
  Hereinafter, still another configuration example of this embodiment will be described. FIG. 10 is a perspective view showing the vicinity of the freezer compartment 31 according to this embodiment. This embodiment has a spiral duct 45 whose longitudinal direction is fixed along the wall surface of the freezer compartment top surface 26, for example, as a stirring means for stirring the air in the freezer compartment 31. FIG. 11 is a front view of the freezer compartment top surface 26 viewed from the freezer compartment 31 side. The spiral duct 45 has an air passage 45b that divides the cold air flowing in from the inflow port 45a into a plurality of branches and flows in a spiral manner, and is blown out from the front end portion 45c of each air passage 45b. A spiral duct 45 is provided in the middle of the air passage from the freezer compartment top surface air passage 34 to the freezer compartment 31, and the cold air blown to the freezer compartment top air passage 34 is introduced from the inlet 45a and frozen from the tip 45c. Blow out into chamber 31. Cold air flows spirally in the air passage 45b, and the cold air blown out from the tip 45c into the freezer compartment 31 becomes a swirling flow.
[0028]
  A plurality of circular end portions 45c of the spiral duct 45 are distributed in a circular shape as shown in FIG. 11, and the swirling flows blown from each of the front end portions 45c interfere with each other in the freezer compartment 31, thereby Of air is agitated. For this reason, the temperature distribution in the freezer compartment 31 can be equalized, and cooling efficiency can be improved.
[0029]
  In addition, although the attachment position of the spiral duct 45 is made into the freezer compartment top surface 26, you may attach to the back wall and side wall in the freezer compartment 31.
  Moreover, although the blowing opening area of the front-end | tip part 45c of the spiral duct 45 may be made the same by several air paths 45b, if it comprises a little differently, the cold air of a different air volume will blow off, and a freezer compartment The air in 31 can be agitated in various directions to equalize the temperature distribution. Of course, the number of the plurality of air passages 45b is not limited to FIGS.
[0030]
  Since the spiral duct 45 has a configuration in which a swirl flow is obtained by changing the flow direction of the cold air into a spiral shape, the spiral duct 45 has an action of stirring the air in the freezer compartment 31 even if it is fixed to the freezer compartment top surface 26. However, if the spiral duct 45 is rotatably provided on the top surface 26 of the freezer compartment, the spiral duct 45 also rotates somewhat according to the principle of angular momentum. By rotating the spiral duct 45 freely, the blowing position of the swirl flow can be changed unsteadily, and a larger stirring force can be obtained.
  Further, the spiral duct 45 may be provided so as to be rotatable, and the change in the cold air blowing direction may be configured to use the opening / closing power of the refrigerator compartment door 35. A configuration example using the opening / closing power of the refrigerator compartment door 35 is the same as in FIG. With this configuration, the direction is rotated by, for example, about 45 degrees in response to one door opening / closing operation of the refrigerator compartment door 35. The air flow in the freezer compartment 31 can be made unsteady by slightly changing the cool air blowing direction when the door is opened and closed. For this reason, it is possible to prevent the occurrence of a stagnation point in which a specific portion in the freezer compartment 31 is a portion where the cold air does not easily flow and the temperature is higher than other portions.
[0031]
  Hereinafter, still another configuration example of this embodiment will be described. FIG. 12 is a sectional view showing the vicinity of the freezer compartment 31 according to this embodiment, and shows a longitudinal section parallel to the side surface. In this embodiment, as a stirring means for stirring the air in the freezer compartment 31, for example, a plurality of cold air blowing holes 23 having various angles with respect to the vertical direction are provided in the freezer compartment top surface 26 in a dispersed manner. The cold air blowing hole 23 communicates the freezer compartment top air passage 34 and the freezer compartment 31 which are cold air passages. FIG. 13 is a front view of the freezer compartment top surface 26 viewed from the freezer compartment 31 side.
[0032]
  Since the air blowing direction and the air blowing angle of the plurality of the cold air blowing holes 23 are provided so as to be different from each other, the cold air is blown out in the positions dispersed from the cold air blowing holes 23 and in the directions dispersed from each other. . That is, cold air having a rotating speed component is blown into the freezer compartment 31. The cold air having the swirling speed component strongly interferes in the freezer compartment 31, whereby an air flow that stirs the air in the freezer compartment 31 can be generated. The cold air in the freezer compartment 31 is agitated, and the temperature distribution in the freezer compartment 31 can be equalized.
[0033]
  Here, if the total opening area of the plurality of cold air blowing holes 23 is configured to be approximately the same as that of the freezer compartment top surface cold air blowing port 5 in the configuration of FIG. 3, the same cooling capacity can be obtained. The plurality of cold air blowing holes 23 may be provided in a linear shape or a curved shape so as to have an angle with respect to the vertical direction. Moreover, you may provide in a spiral shape like the spiral duct 45 shown in FIG. However, if the shape of the cold air blowing holes 23 adjacent to each other is different so that the flow of the cold air blown from the cold air blowing holes 23 becomes irregular, the stirring effect can be further improved. As a manufacturing method, a hole may be punched into the freezer compartment top surface 26, or a wall of the freezer compartment top surface 26 may be manufactured using a mold.
  Further, in FIG. 13, a large number of the cold air blowing holes 23 are dispersed on the top surface 26 of the freezer compartment, but may be dispersed on the back wall and the side wall in the freezer compartment 31.
[0034]
  Hereinafter, still another configuration example of this embodiment will be described. FIG. 14 is a perspective view showing the vicinity of the freezer compartment 31 according to this embodiment. In this embodiment, as the agitation means for agitating the air in the freezer compartment 31, a plurality of, for example, four cold outlets 15 are provided as the cool air outlet, and the rear side position of the freezer compartment lower case 8 in the freezer compartment 31 is The cool air is blown out from the rear wall of the freezer compartment 31 through the cool air distribution slit 38 at the tip of the air channel grill 2. FIG. 15 is an explanatory view showing the flow of cold air in a longitudinal section parallel to the side surface.
[0035]
  On the back surface of the lower case 8 in the freezer compartment, a cold air supply slit 38 is provided at the tip of each switching outlet 15 so that, for example, the opening area of the cold air supply slit 38 is different vertically. For example, the opening area of the two cold air supply slits 38 on the lower side is made larger than that on the upper side. Further, a damper 54 is provided on the upstream side of the switching air outlet 15 in the cold air flow direction, and cold air is blown out from, for example, two of the four switching air outlets 15 by the control means 53. The combination of the two switching outlets 15 is switched by opening and closing the damper in a timely manner. The control means 53 changes the flow of the cold air in the freezer compartment 31 by changing the switching air outlet 15 for blowing the cold air out of the four switching air outlets 15 in a predetermined time. This produces an air flow that stirs the air inside.
[0036]
  The control means 53 is, for example, a microcomputer disposed on the back of the refrigerator, and can control the operation of the damper 54 in various ways by storing and operating a program.
  For example, as shown in FIG. 16, the upper left and lower right in (period 1), the upper left and upper right in (period 2), the lower left and upper right in (period 3), and the lower left and lower right switching outlet in (period 4). Cold air is blown out from 15. In this way, the air blowing position is changed with time, and the airflow in the freezer compartment 31 is changed to an unsteady flow, thereby stirring the cold air in the freezer compartment 31. By this stirring, the temperature distribution of the whole freezer compartment can be made uniform, without the specific site | part in the freezer compartment 31 becoming a stagnation point.
[0037]
  In combination with the propeller fan 9 in FIG. 3 and the rotating duct 14 in FIG. 8, the temperature distribution can be made uniform at any position in the freezer compartment upper case 7 and the freezer compartment lower case 8.
[0038]
  The operation of the damper 54 may be performed by door opening / closing power using a mechanism similar to that shown in FIG. By utilizing the door opening / closing power, the temperature distribution in the freezer compartment 31 can be improved without using any special power for the operation of the damper 45, which is very effective as an energy saving measure.
[0039]
  Further, the number of the switching outlets 15 is not limited to four and may be any number. Further, the cold air distribution slit 38 at the tip may be formed of a louver that can adjust the blowing angle instead of having a slit. In this case, since the blowing direction can be determined within a predetermined angle of right and left or up and down, the air in the freezer compartment 31 can be further agitated with the blown cold air.
[0040]
  Further, if the forward rotation and the reverse rotation of the blower fan 3 are sequentially switched in an appropriate period, the flow of the cool air in the freezer compartment 31 becomes the forward direction and the reverse direction, and the cool air blowing position changes with time. For example, when the blower fan 3 is reversely rotated in the state of FIG. 15, cold air is blown out from the freezer compartment backside cold air inlet 6, and cold air is sucked in from the switching outlet 15. In this way, the air flow in the freezer compartment 31 is changed to an unsteady flow by reversing the flow of the cold air periodically or irregularly. From this, the air in the freezer compartment 31 is stirred, and the whole freezer compartment can be made uniform temperature, without the specific site | part in a freezer compartment becoming a stagnation point.
  Control means for switching between normal rotation and reverse rotation of the blower fan 3 can be realized, for example, by storing a control program in a microcomputer and operating the same as in the configuration of FIG.
[0041]
Embodiment 2. FIG.
  The second embodiment of the present invention will be described below. In this embodiment, the object storage container installed in the freezer compartment is configured to improve the temperature distribution in the freezer compartment, thereby improving the cooling efficiency. The main cold air circulation system in the second embodiment is the same as that in the first embodiment, and the description thereof is omitted.
[0042]
  FIG. 17 is a perspective view showing, for example, a lower case 8 in the freezer compartment as the object to be cooled in the freezer compartment according to this embodiment. For example, a plurality of heat storage plates 16, which are heat storage members made of a material having good thermal conductivity such as copper or aluminum, are dispersed and fixed on at least two surfaces of the inner wall of the freezer compartment lower case 8. The heat storage plate 16 has a diameter of about several centimeters, for example, and has a circular plate having the same thickness as that of the case 8 or a shape similar thereto. In FIG. 17, for example, a plurality of heat storage plates 16 are arranged in a distributed manner on the inner walls of both sides and the bottom of the case 8. By embedding the plurality of heat storage plates 16 in the inner wall of the lower case 8 in the freezer compartment, the case 8 can be installed without causing unevenness.
[0043]
  The heat storage plate 16 attached to the lower case 8 in the freezer compartment is cooled by the cold air supplied into the case 8, and the cold heat is stored. The ambient atmosphere is locally cooled by the stored cold radiation. A heat storage plate 16 is attached to at least two surfaces of the inner wall in the vicinity of the high temperature portion among the inner walls of the lower case 8 in the freezer compartment, and the temperature is locally lowered only in the vicinity of the high temperature portion, thereby The temperature in the case 8 can be made uniform.
[0044]
  At the temperature in the lower case 8 in the freezer compartment, the temperature rises and falls in the three-dimensional space depending on the cold air circulation system of the refrigerator, the position of the cold air outlet, the blowing direction, the air volume, and the like. The temperature also varies depending on the part having the heat, such as the position of the motor, the condensation pipe, and the dew-proof pipe. High and low temperatures are also caused by the structure and position of the gasket, the shape of the freezer compartment, and the flow of cold air generated inside. By determining the standard specifications of these conditions, the tendency of the temperature distribution generated in the lower case 8 in the freezer compartment can be understood to some extent. For a refrigerator constructed by determining these standard specifications to a certain extent, for example, a trial run is performed in a state where an object to be cooled is not put in the freezer compartment, and the temperature is set at nine locations in the upper, middle, lower, front, middle, and rear in the lower case 8 of the freezer compartment. When measured, it is possible to grasp the portion where the temperature is high in the lower case 8 in the freezer compartment. Therefore, the plurality of heat storage plates 16 are dispersed and fixed to some extent on at least two surfaces of the inner wall of the freezer compartment lower case 8 located in the vicinity of the portion where the temperature is high, that is, near the portion where the temperature is high. Thereby, the level difference of the temperature produced in the three-dimensional space can be equalized from at least two directions.
  For example, in FIG. 18, when the temperature around the left front lower portion is higher than the other portions, if the heat storage plate 16 is attached to the left front lower portion and the left side lower portion, the air near the left front lower portion can be locally cooled, The temperature distribution can be made uniform. Of course, the heat storage plates 16 may be provided on two or more surfaces near the portion where the temperature is high.
[0045]
  Since the temperature distribution generated in the freezer compartment can be adjusted by an easy method of attaching the heat storage plate 16 made of the heat storage member, the temperature distribution can be finely adjusted without changing the special design standard. For example, a plurality of insertable portions are appropriately formed in the entire lower case 8 of the freezer compartment, and the heat storage plate 16 is inserted into the insertable portion located in the vicinity of the high temperature portion, and in the vicinity of the low temperature portion. For example, a plastic plate made of the same material as that of the case 8 is fitted into the position where the fitting is possible. Thus, if the fixing position of the heat storage plate 16 is made variable, fine adjustment is easy.
[0046]
  In addition, if the heat storage member has a thin shape with a thickness of about several millimeters and is attached to the case 8 with a simple adhesive, the temperature of the heat storage member can be easily changed. It is more convenient to deal with the distribution more flexibly.
  Further, by combining with the propeller fan 9 in FIG. 3 and the rotating duct 14 in FIG. 8, it is possible to make the temperature uniform in any position of the freezer compartment upper case 7 and the freezer compartment lower case 8. Of course, a heat storage plate may be provided in the upper case 7 of the freezer compartment, or may be provided in another cooling chamber.
  Since the heat storage plate 16 is provided, even if cold air flows out by opening and closing the cooling chamber door, the temperature in the cooling chamber is not easily lowered. For this reason, the reliability in preservation | save of foodstuffs etc. can be maintained.
[0047]
  FIGS. 19 and 20 are diagrams showing another configuration example of this embodiment. FIG. 19 is a longitudinal sectional view in the vicinity of the freezer compartment, and FIG. 20 is a lower case 8 in the freezer compartment that is a container to be cooled. FIG. As shown in FIG. 19, the lower case 8 in the freezer compartment has a double structure of the cooled object storage inner container 8a and the cooled object storage outer container 8b surrounding the outer container 8a. The cool air guide passage 17 through which the cool air is flowing is formed. The to-be-cooled object storage inner container 8 a having a double structure includes a large number of cold air blowing holes 37. The cool air is circulated into the cool air guide passage 17 from the cool air distribution slit 38 in FIG. 20, and the cool air is blown out into the cooled object storage inner container 8a from the cool air blowing hole 37.
[0048]
  For example, as shown in FIG. 21, three rows of the cold air blowing holes 37 are provided, and the diameter of the front holes 37b is made larger than the diameter of the rear holes 37a. In the central portion, the diameter is intermediate between the diameters of the front hole 37b and the rear hole 37a. In the case where the front side of the freezer compartment lower case 8 is less likely to flow cooler than the rear side, the diameter of the front hole 37b is made larger than the rear hole 37a in this way, thereby increasing the amount of cool air to the front side. It can flow. In this way, by changing the size of the diameters of the plurality of cold air blowing holes 37, it is possible to adjust the temperature of the lower case 8 in the freezer compartment by adjusting the amount of cold air blown out.
  Further, since the cool air is not blown out from the predetermined portion into the inside of the lower case 8 in the freezer compartment, the cool air is blown out uniformly from the periphery of the object to be cooled, so that the object to be cooled can be easily cooled and the cooling efficiency can be improved.
[0049]
  The arrangement and size of the cold air blowing holes 37 shown in FIG. 21 are merely examples, and the present invention is not limited to this configuration. For example, the diameters may be provided in a distributed manner, or the diameter may be changed on the left and right or top and bottom of the case. What is necessary is just to determine the arrangement | positioning and magnitude | size of the cold air blowing hole 37 according to the temperature distribution of the freezer compartment resulting from the structure of a refrigerator.
[0050]
  A cool air discharge slit 18 is provided in the double-structured outer container 8b for the object to be cooled of the lower case 8 in the freezer compartment, and the return cold air passes through the cool air discharge slit 18 and the outside of the freezer compartment lower case 8 and the freezer. Similar to the first embodiment, it passes through the inner wall of the chamber 31 and returns to the cooler disposed on the back side of the refrigerator.
  Further, by combining with the propeller fan 9 in FIG. 3 and the rotating duct 14 in FIG. 8, it is possible to make the temperature uniform in any position of the freezer compartment upper case 7 and the freezer compartment lower case 8.
[0051]
  FIG. 22 is a diagram showing still another configuration example of this embodiment, and is a perspective view showing the freezer compartment upper case 7 and the freezer compartment lower case 8. The freezer compartment upper case 7 and the freezer compartment lower case 8 have cold air discharge slits 18 and 18a to 18e on the front, rear and front sides of the side surfaces. The cold air discharge slit 18 changes the opening area depending on the temperature of each position. For example, in the freezer compartment lower case 8, the left front part has the highest temperature, the right back part has the next highest temperature, and the left back part and the right front part have a low temperature. In this case, the opening area of the cool air discharge slit 18a at the left front is maximized, the cool air discharge slit 18d at the back right is larger than the opening area of the cool air discharge slit 18a, and the cool air discharge slit 18b at the left back and the front right The opening area of the cool air discharge slit 18c is small. The cold air blown into the freezer compartment lower case 8 from the freezer compartment back cold air outlet 4 flows into the cold air discharge slits 18a to 18e, but the amount of cold air flowing into the cold air discharge slit 18a having a large opening area increases. For this reason, in the freezer compartment lower case 8, a lot of cold air flows in the order of the left front part, the right rear part, the left rear part, and the right front part, and the temperature distribution of the freezer compartment lower case 8 can be improved.
[0052]
  In the configuration shown in FIG. 22, the cool air discharge slit 18 is also provided in the upper case 7 of the freezer compartment, and the opening area of the cool air discharge slit 18 in the portion where the temperature is high is increased, so that The temperature distribution is also equalized.
  The positions where the cool air discharge slits 18 are provided and the respective opening areas are not limited to those shown in FIG. 22, and the cool air discharge slits 18 are provided in the vicinity of the high temperature portion depending on the configuration of the refrigerator, and the amount of cool air increases. In this way, the opening area of the cold air discharge slit 18 may be increased.
[0053]
  FIG. 23 is a perspective view showing a lower case 8 in the freezer compartment, showing still another configuration example of this embodiment. A mesh-shaped wire net case 27 is provided inside the lower case 8 in the freezer compartment. The front, side, and back of the metal mesh case 27 are sized so that a gap of about several centimeters is formed between the inside of the lower case 8 in the freezer compartment. Furthermore, a support foot 40 is provided on the bottom surface of the wire mesh case 27 and is installed slightly floating above the bottom surface of the lower case 8 in the freezer compartment. The material of the mesh-like wire mesh is, for example, stainless steel or aluminum.
[0054]
  When the object to be cooled is laid down and stored in the freezer compartment lower case 8 without the wire mesh case 27, the cold air hardly flows into the narrow gap of the object to be cooled. On the other hand, when the wire mesh case 27 is provided, it is possible to send cold air from the surroundings to a narrow gap of the object to be cooled. For this reason, cold air can flow and the temperature distribution in the freezer compartment can be equalized.
  Furthermore, since the metal mesh case 27 can be easily removed from the lower case 8 in the freezer compartment, the object to be cooled can be taken out at a time, which is convenient.
  Further, not only one but also a plurality of wire mesh cases 27 may be provided. Further, for example, if the wire mesh case 27 is formed of aluminum, it has air permeability and also functions as a heat storage material, and has an effect of cooling an object to be cooled by radiation.
[0055]
  Further, a wire mesh case may be provided in the freezer compartment upper case 7.
  3 may be combined with the propeller fan 9 of FIG. 3, the rotating duct 14 of FIG. 8, the spiral duct 45 of FIG. 10, or the like, or the switching outlet 15 of FIG. Accordingly, if the flow direction of the cold air blown into the cooling chamber is changed, the flow of the cold air in the cooling chamber flows unsteadyly, and the temperature distribution generated in the cooling chamber can be more effectively equalized.
[0056]
  FIG. 24 is a view showing still another configuration example of this embodiment, and is a perspective view showing a freezer compartment lower case 8 in the freezer compartment. A plurality of dimples 19 that are a plurality of depressions are provided on the bottom and side surfaces of the lower case 8 in the freezer compartment. For example, the dimple 19 has a recess that is deeper on the front side than the back side, and cool air that flows from the back to the front flows smoothly along the recess of the dimple 19.
[0057]
  Even when an object to be cooled such as food is stored in the freezer compartment lower case 8 without a gap, the dimple 19 is hardly covered with the object to be cooled. For this reason, it becomes possible for cold air to flow along the inner wall of the freezer compartment lower case 8 through a part of the dimple 19, and sufficient ventilation is ensured. As a result, even when the object to be cooled is stored, it is possible to prevent the temperature distribution from occurring in the lower case 8 in the freezer compartment, and uniform cooling is possible.
[0058]
  FIG. 25 is a partial cross-sectional enlarged view of the lower case 8 in the freezer compartment, so that a difference in height of about several millimeters can be made between adjacent dimple edges 39 such that the dimple edge 39a is high and the dimple edge 39b is low. It is configured. As a result, even when the object to be cooled is stored in close contact with the wall surface, the cool air can pass through the dimples 19 more smoothly. For this reason, air permeability becomes good and the temperature distribution in the freezer compartment can be equalized.
[0059]
  Further, by changing the depth between the back side and the front side of the dimple 19, the airflow along the bottom surface of the dimple 19 becomes a vortex and collides with a vortex by the adjacent dimple 19. For this reason, airflows in various directions are generated in the lower case 8 in the freezer compartment, the flow of cold air is changed and stirred, and the temperature distribution is equalized.
  Further, since the dimple 19 allows a finger to be inserted into the gap between the dimple 19 and the object to be cooled, the ease of taking out can be improved.
[0060]
  Further, as shown in FIG. 26, the cool air distribution slit 38 is also provided at the lower back of the freezer compartment lower case 8 so that the amount of cool air flowing along the bottom surface of the freezer compartment lower case 8 can be increased. For this reason, the flow of cold air along the bottom surface of the dimple 19 increases, and the air permeability when storing the object to be cooled can be further improved.
[0061]
  The arrangement and the number of the dimples 19 are not limited to those shown in FIG. For example, when the object to be cooled is rarely stored on the side surface, the dimples 19 need not be provided on the side surface. Further, instead of providing dimples having the same shape, a plurality of dimples having different shapes and sizes may be provided.
  3 may be combined with the propeller fan 9 of FIG. 3, the rotating duct 14 of FIG. 8, the spiral duct 45 of FIG. 10, or the like, or the switching outlet 15 of FIG. Thus, if the flow direction of the cool air blown into the cooling chamber is changed, the cool air flow in the cooling chamber flows unsteadyly, and the temperature distribution generated in the cooling chamber can be more effectively equalized.
[0062]
Embodiment 3 FIG.
  The third embodiment of the present invention will be described below. This embodiment prevents heat leakage from the dew proof pipe and the condensation pipe on the side of the refrigerator into the refrigerator, or equalizes the amount of heat leakage into the refrigerator from left and right to equalize the temperature distribution in the cooling chamber. In order to improve the cooling efficiency. The main cold air circulation system in the third embodiment is the same as that in the first embodiment, and the description thereof is omitted. In addition, as a cooling room, for example, a freezing room will be described.
[0063]
  27 and 28 are explanatory diagrams showing heat leakage and cold air circulation in the freezer compartment 31 of a general refrigerator-freezer. FIG. 27 is a longitudinal section near the freezer compartment 31, and FIG. 28 is a transverse section of the freezer compartment 31. Show. A gasket 41 is usually attached to the inner edge of the freezer compartment door 20 constituting one surface of the freezer compartment 31 so as to seal the room and the outside over the entire circumference of the freezer compartment door 20. However, the seal with the gasket 41 is not perfect, and the cold air in the freezer compartment 31 leaks to some extent from here. Further, there is a case where a dewproof pipe 21 is provided in the vicinity of the pipe, and a refrigerant at about 30 ° C. is circulated in the pipe 21. That is, dew may adhere to the outer container of the refrigerator due to a decrease in temperature due to cold air leakage in the vicinity of the gasket 41. To prevent this dew, the fixed side near the gasket 41 is attached. The dew-proof pipe 21 is disposed on the side. The fixed side is a portion that does not move when the freezer compartment door 20 is opened and closed. The dew-proof pipe 21 is normally insulated by a heat insulating material such as urethane, but the temperature is about 30 ° C. which is considerably higher than the inside temperature, so that heat leaks into the inside as shown by the arrow A in FIG. To do. Due to such heat leakage, cold air leakage from the gasket 41, heat leakage from the condensation pipe on the side of the refrigerator into the refrigerator, the temperature becomes uneven depending on the position in the freezer compartment 31.
[0064]
  For example, the amount of heat leaking from the dew proof pipe 21 and the condenser pipe on the side of the refrigerator into the refrigerator is uneven on the left and right, and the air flow balance of the cold air causes the upper case 7 in the freezer compartment 31 to have the structure shown in FIG. It is assumed that a counterclockwise gentle swirling flow such as an arrow B is generated. The cold air that has reached the left front as viewed from the outside of the refrigerator door 20 receives heat leaked from the dew prevention pipe 21 while reaching the right front, and the temperature rises. As a result, a temperature distribution is generated in the front portion of the case 7. The same phenomenon is caused by heat leakage from the condenser pipe on the side of the refrigerator into the refrigerator, and a temperature distribution is generated on the side of the case 7. The temperature distribution shown in FIG. 28B is an example showing the temperature distribution when the highest temperature in the freezer compartment 31 is cooled to about −18 ° C. A large temperature distribution occurs due to the swirling flow of the cold air indicated by the arrow B and the heat leakage indicated by the arrow A. Therefore, when the desired temperature is maintained, the cold air having a temperature lower by the amount corresponding to the temperature rise is blown out from the freezer compartment top cold air outlet 5. There is a need to reduce the cooling efficiency of the refrigerator.
[0065]
  29 and 30 are explanatory diagrams showing heat leakage and cold air circulation in the freezer compartment 31 according to this embodiment. FIG. 29 is a view showing a longitudinal section in the vicinity of the freezer compartment 31, and FIG. 30 is a view showing a transverse section of the freezer compartment 31. Here, a shielding plate 25 that divides the space in the case 7 into left and right is provided in the center of the freezer upper case 7. The shielding plate 25 is formed of, for example, a plastic plate, and is fixed to at least one of a bottom portion, a front portion, or a rear portion of the case 7. However, since the upper case 7 and the lower case 8 are pulled out when the object to be cooled is taken in and out, the upper end portion of the shielding plate 25 is configured not to contact the freezer compartment top surface 26 so as not to disturb this movement.
[0066]
  The cold air blown out from the freezing room top surface cold air outlet 5 rotates in two spaces divided by the shielding plate 25 as shown by arrows B1 and B2 in FIG. An example of the temperature distribution generated in each space is shown in FIG. By providing the shielding plate 25, the swirling flow generated in the upper case 7 becomes smaller than that in FIG. For this reason, the amount of heat received from the dew-proof pipe 21 by the cold air reaching the right front when viewed from the outside of the freezer compartment door 20 can be made substantially equal to the amount of heat received by the cold air at the left front, as shown in FIG. The resulting temperature distribution is smaller. When trying to keep the highest temperature part of the freezer room 31 at about −18 ° C., the temperature of the cold air blown out from the freezing room top surface cold air outlet 5 may be set to, for example, about −19 ° C. to improve the cooling efficiency. it can.
[0067]
  In addition, the shielding board 25 is not restricted to the structure of FIG.29 and FIG.30. When a large swirl flow is generated in the upper case 7, the difference in temperature distribution becomes large. Therefore, the freezing chamber 31 may be divided into a plurality of spaces so as to prevent the large swirl flow from being generated by the shielding plate 25. Each of the plurality of divided spaces takes in cold air from the freezing room top surface cold air inlet 5 substantially uniformly, and also leaks heat from the front gasket 41 and the dew-proof pipe 21 and from the side condensation pipe. What is necessary is just to form so that various heat leaks, such as a heat leak, may be received substantially equally. In addition, although one shield plate 25 is provided in the upper case 7, the number and installation location are not limited to this, and may be provided in other cooling chambers such as the lower case 8 and the refrigerator compartment, or a plurality of the shield plates 25 may be provided. May be.
[0068]
  Moreover, you may comprise the shielding board 25 as shown to Fig.31 (a). For example, when the temperature on the left side increases as viewed from the outside of the freezer compartment door 20 due to heat leakage from a condensation pipe embedded in the wall of the freezer compartment 31, the shielding plate 25 is provided biased to the right side. When the shielding plate 25 is configured in this way, there is a difference in the amount of cool air flowing in the divided space, and a lot of cool air flows in the left space. Therefore, for example, the temperature distribution can be equalized as shown in FIG.
  Here, the shielding plate 25 is not limited to that shown in FIG. 31, and the space in the freezer compartment 31 may be divided so as to make a difference in the amount of cool air according to heat leakage from the surroundings to the freezer compartment 31. .
[0069]
  Hereinafter, another configuration example of this embodiment will be described. FIG. 32 is a perspective view showing the freezer upper case 7 according to this embodiment, and FIG. 32 is a longitudinal sectional view showing the vicinity of the freezer 31. For example, among the gaskets 41 provided at the inner edge of the freezer compartment door 20, for example, a front roller 47, a heat insulating material as a shielding member at a portion facing the gasket 41 provided at the object outlet / outlet of the cooling chamber. 22a and 22b are provided. This shielding member shields the gasket 41 and the inside of the freezer compartment 31 in a state where the freezer compartment door 20 is closed, and prevents cold air in the freezer compartment 31 from contacting the gasket 41. The freezer compartment 31 at this time includes not only the inside of the freezer upper case 7 but also the freezer lower case 8 and a cold return space formed around it.
[0070]
  The front roller 47 is formed in a cylindrical shape with, for example, a heat insulating material, and is disposed in a portion facing the gasket 41 of the freezer upper case 7 in the same direction as the extending direction of the gasket 41, that is, the entire width of the inlet / outlet of the object to be cooled. It extends long so as to cover, and is fixed rotatably. Further, a heat insulating material 22 a is attached to the freezer compartment door 20 side of the freezer compartment top surface 26 from the cold air outlet 5, and a heat insulating material 22 b is attached to the back surface of the freezer compartment door 20. The front surface of the refrigerator at the outer peripheral position of the front roller 47 protrudes from the front end portions of the freezer upper case 7 and the freezer lower case 8, and is provided on the back of the door with the freezer door 20 closed. 22 b is configured to come into contact with and closely contact the outer peripheral portion of the front roller 47. In addition, on the freezer top surface 26 side of the outer peripheral position of the front roller 47, the heat insulating material 22 a provided on the freezer chamber top surface 26 is in close contact with the outer peripheral portion of the front roller 47 with the freezer door 20 closed. Is configured to do.
[0071]
  Further, rear rollers 42 are rotatably provided outside the left and right side surfaces of the freezer compartment upper case 7. The mounting position of the rear roller 42 is closer to the freezer compartment door 20 side than the freezer compartment top cold air outlet 5. Moreover, the freezer top surface 26 side of the outer peripheral position of the rear roller 42 is set to a position substantially equivalent to the front roller 47, and the heat insulating material 22b provided on the freezer top surface 26 with the freezer door 20 closed is provided with a rear roller. It is comprised so that it may contact | abut to the outer peripheral part of 42, and may contact | adhere.
  When the freezer compartment door 20 is pulled out, the front roller 47 and the rear roller 42 rotate in the door opening / closing direction along the surface of the heat insulating material 22a. Conversely, when the freezer compartment door 20 is pushed in, the front roller 47 and the rear roller 42 rotate in the reverse direction of the door along the surface of the heat insulating material 22a. For this reason, the freezer compartment door 20 can be opened and closed smoothly.
[0072]
  FIG. 34 is an explanatory view showing, in an enlarged manner, the vicinity of the gasket 41 with the freezer compartment door 20 closed. The rear roller 42 is omitted. The outer periphery of the front roller 47 is in contact with the freezer compartment top-side heat insulating material 22a and the freezer compartment door-side heat insulating material 22b. As a result, a space 48 is formed between the gasket 41. The cold air supplied to the freezer compartment from the freezer compartment top surface cold air outlet 5 flows along the inside of the front roller 47 on the cooled object storage space side as indicated by the arrow. In this way, the cool air is prevented from directly hitting the freezer compartment gasket 41, so that the cool air leak from the gasket 41 can be prevented. Further, the heat from the dew-proof pipe 21 is prevented from leaking into the freezer compartment 31 by the freezer compartment side heat insulator 22a and the front roller 47 made of the heat insulator. Therefore, the temperature distribution in the freezer compartment 31 can be improved and the cooling efficiency can be increased.
  Furthermore, since the cool air in the freezer compartment 31 is blocked by the front roller 47 and does not directly hit, the temperature of the space 48 is not as low as the temperature in the freezer compartment 31, and the temperature difference between before and after through the gasket 41. That is, the temperature difference between the outside and the space 48 is reduced. For this reason, while being able to make small the amount of heat transfer from the outside air through the gasket 41 to a store | warehouse | chamber, it becomes difficult to attach dew to the outer container of a refrigerator.
[0073]
  Further, the position of the upper case 7 on the freezer compartment door 20 side is retracted from the outer peripheral door side position of the front roller 47, and a space is provided between the back surface of the freezer compartment door 20 and the freezer compartment upper case 7, and the freezer compartment By providing the cool air discharge slit 18 below the front surface of the upper case 7, it is possible to secure an air path through which the cool air returns to the cooler side.
  Further, the freezer door side heat insulating material 22b is not necessarily required and may be omitted, but the outer periphery of the front roller 47 is in contact with the back surface of the freezer compartment door 20 with the freezer compartment door 20 closed. Constitute. Similarly, if the front roller 47 is made of a heat insulating material, the freezer top surface heat insulating material 22a is not necessarily required and may be omitted.
[0074]
  Hereinafter, still another configuration example of this embodiment will be described. FIG. 35 is a longitudinal sectional view showing the vicinity of the freezer compartment 31 according to this embodiment, and FIG. 36 is a perspective view showing a shielding member, for example, the shielding plate 25. For example, in the gasket 41 provided at the inner edge of the freezer compartment door 20, the shielding plate 25 is provided at a portion facing the gasket 41 provided at the inlet / outlet of the object to be cooled in the cooling chamber. The shielding plate 25 forms a space 48 with the gasket 41 with the freezer compartment door 20 closed, and shields the space 48 and the inside of the freezer compartment 31. The shielding plate 25 is supported by the support portion 50 of the freezer compartment top surface 26 and is positioned between the front surface of the freezer compartment upper case 7 and the door with the freezer compartment door 20 closed.
[0075]
  The shielding plate 25 is a plate made of a heat insulating material extending long so as to cover the same direction as the extending direction of the gasket 41, that is, the entire lateral width of the inlet / outlet of the object to be cooled. The lateral direction is longer than at least the lateral width of the freezer upper case 7, and both lateral ends of the shielding plate 25 are disposed outside both side surfaces of the upper case 7. As shown in FIG. 36, the central portion has a hinged portion 51 that can be opened and closed in accordance with opening and closing of the freezer compartment door 20. Further, the tip of the shielding plate 25 on the freezer compartment door 20 side is configured to be detachable from the inside of the freezer compartment door 20 with, for example, a magnet. A magnet 36 is attached to the inside of the freezer compartment door 20, and a metal is attached to a portion of the shielding plate 25 that contacts the magnet 36 at the tip of the freezer compartment door. The attraction force of the magnet may be weak as long as the shielding plate 25 and the freezer compartment door 20 can be in close contact with each other when the freezer compartment door 20 is closed. Moreover, the both sides | surfaces of the freezer compartment upper case 7 comprise the upper shape by the side of the freezer compartment door 20 by a gentle curve.
[0076]
  As shown in FIG. 35, when the freezer compartment door 20 is closed, the shielding plate 25 is in close contact with the top surface 26 of the freezer compartment by the support portion 50 and is attracted to the magnet 36 on the freezer compartment door 20 side, thereby freezing compartment. It is in close contact with the inside of the door 20. A space 48 is formed on the gasket 41 side. The space 48 can be made larger than the configuration shown in FIG. 33 by setting the mounting position of the support portion 50 behind the vicinity of the dew proof pipe 21. By forming the space 48 shielded from the freezer compartment cold air, the cool air supplied to the freezer compartment 31 from the freezer top ceiling outlet 5 is prevented from directly hitting the freezer compartment door gasket 41. Furthermore, the heat from the dew-proof pipe 21 can be prevented from leaking into the freezer compartment 31 by the space 48 and the shielding plate 25 made of heat insulating material. Therefore, the temperature distribution in the freezer compartment 31 can be improved.
[0077]
  FIG. 37 is an explanatory view showing a state near the freezer compartment when the freezer compartment door 20 is opened. When the freezer compartment door 20 is pulled out with a force larger than the attractive force of the magnet 36, the close contact between the inside of the freezer compartment door 20 and the shielding plate 25 is separated. Further, as the freezer compartment door 20 is pulled out, the shielding plate 25 slides upward along the gentle curve of the front edge 49 of the freezer compartment upper case 7. The support part 50 of the shielding plate 25 uses a hinge that can be rotated only forward, and the hinge part 51 provided at an intermediate position of the shielding plate 25 is a hinge that has no directivity so that it can be rotated either forward or backward. Use. For this reason, according to the relative position of the support part 50 and the front edge 49, the support part 50 and the hinge part 51 rotate in the optimal direction naturally.
[0078]
  Further, as in the case where the freezer compartment door 20 is closed, the support portion 50 and the hinge portion 51 are rotated in an optimum direction, and can be smoothly returned to the original position along the front edge 49. Moreover, you may provide two or more butterfly parts 51 of the shielding board 25 instead of one. If two hinge parts 51 are provided, the door can be opened and closed more naturally than in the case of one hinge part 51. The shielding plate 25 is configured so that the freezer compartment door 20 can be smoothly opened and closed by the pivotable support portion 50 and the hinge portion 51.
[0079]
  In this configuration, the size of the space 48 is determined by the size of the shielding plate 25, that is, the length from the support portion 50 to the butterfly portion 51 and the length from the hinge portion 51 to the freezer compartment door side end. It can be adjusted freely. In addition, the space 48 can shield a portion where heat is leaked from the dewproof pipe 21 and the inside of the freezer compartment 31.
  Further, the entire shielding member is shaped like a bellows so that it can be retracted in the pull-out direction of the freezer compartment door 20. When the freezer compartment door 20 is closed, it is in close contact with the top surface 26 of the freezer compartment and on the other hand the freezer compartment door. 20, and the gasket 41 side and the dew proof pipe 21 side and the inside of the freezer compartment 31 may be shielded via the space 48.
[0080]
  Hereinafter, still another configuration example of this embodiment will be described. FIG. 38 is a longitudinal sectional view showing the vicinity of the freezer compartment 31 according to this embodiment. For example, a shielding plate 25 (second shielding member) is provided in a portion of the gasket 41 provided at the inner edge of the freezer compartment door 20 that faces the gasket 41 provided at the object outlet / outlet of the cooling chamber. ing. The shielding plate 25 is provided inside the freezer compartment door 20 and has a hollow, for example, triangular prism extending in the lateral direction similar to the extending direction of the gasket 41. One side surface of the triangular prism having a cross-sectional shape is opposed to the inner wall surface of the freezer compartment door 20, and the other side surface is opposed to the freezer compartment top surface 26, and is fixed on the inner wall surface of the freezer compartment door 20, for example. The hollow shielding plate 25 provides a space 48 in the vicinity of the gasket 41 and the dew-proof pipe 21 of the freezer compartment door 20.
[0081]
  The freezer compartment top surface 26 extends in the lateral direction similar to the extending direction of the gasket 41 so that the cross-sectional shape abuts on the rear end of the triangular shielding plate 25, and the heat insulating material 22 (L-shaped cross section). A first shielding member) is provided. With the freezer compartment door 20 closed, the triangular tip of the shielding plate 25 is fixed in close contact with the corner portion of the heat insulating material 22 to form a space 48 between the gasket 41 and the space 48 and the freezer. The inside of the chamber 31 is shielded. That is, in this configuration example, the heat insulating material 22 as the first shielding member and the shielding plate 25 as the second shielding member constitute a shielding member.
[0082]
  By forming the space 48 shielded from the cold air in the freezer compartment 31, it is possible to prevent the cold air supplied to the freezer compartment 31 from the freezer compartment top surface outlet 5 from directly hitting the freezer compartment door gasket 41. . Furthermore, the heat insulating material 22 can also prevent the heat from the dewproof pipe 21 from leaking into the freezer compartment 31. Therefore, the temperature distribution in the freezer compartment 31 can be improved by such a simple configuration, and the cooling efficiency can be improved.
[0083]
  FIG. 39 is an explanatory view showing a state near the freezer compartment when the freezer compartment door 20 is opened. When the freezer compartment door 20 is pulled out, the heat insulating material 22 attached to the freezer compartment top surface 26 and the shielding plate 25 attached to the freezer compartment door 20 are separated and can be opened and closed smoothly.
  Further, the cross-sectional shape of the shielding plate 25 may not be a triangle, but may be a quadrangle or a polygon. However, if the triangular shape is used, the protrusion to the space on the freezer compartment 31 side can be reduced, so that the degree of freedom of the shape of the front end portion of the freezer compartment upper case 7 is increased.
[0084]
  In the configuration example described with reference to FIGS. 33, 35, and 38, freezing is performed from the shielding member that shields the gasket 41 and the inside of the freezer compartment 31 through a space and the dewproof pipe 21 with the freezer compartment door 20 closed. A configuration having a heat insulating material for preventing heat leakage to the chamber 31 and devised so that the freezer compartment door 20 can be easily opened and closed has been described. In any configuration, the amount of heat leakage from around the freezer compartment door 20 can be reduced by preventing the cold air from directly hitting the freezer compartment door gasket 41. Therefore, the temperature distribution in the freezer compartment 31 can be made uniform, the cooling efficiency can be improved, and the power consumption of the refrigerator can be reduced.
  In addition to providing these shielding members, for example, by combining the configuration shown in FIG. 22 and the like, the amount of the cool air reaching the front surface of the freezer upper case 7 is reduced, thereby further preventing the cool air from directly hitting the gasket 41. Therefore, the cold air leakage from the gasket 41 can be further reduced.
[0085]
  In the configuration example shown in FIGS. 33, 35, and 38, a shielding member is provided around the gasket 41 of the object to be cooled in and out of the freezer compartment door 20. Usually, the gasket 41 is provided around the cooling chamber door as shown in FIG. Therefore, a shielding member may be provided in the vicinity of the gasket in other parts.
[0086]
  Hereinafter, still another configuration example of this embodiment will be described. FIG. 40 is a longitudinal sectional view showing the vicinity of the freezer compartment 31 according to this embodiment, and is a view of the freezer compartment 31 as viewed from the front. FIG. 41 is an explanatory view showing a part of the freezer compartment 31 with the freezer upper case 7 and the freezer lower case 8 removed. A freezer compartment cold air return air passage 46 is formed between the side surface of the freezer compartment lower case 8 and the freezer compartment wall. Heat insulating materials 52a to 52c having a depth W of about 5 cm are provided in a part of the freezer compartment cold air return air passage 46 facing the gasket. The material for the heat insulating material is, for example, urethane resin. The heat insulating material 52a is provided at the front end portion of the freezer compartment top surface 25 in the horizontal direction. The heat insulating material 52b is provided at the upper front end of the side surface of the freezer compartment 31 so as to be connected to the heat insulating material 52a. The heat insulating material 52 c has a U-shaped cross section, and is provided at both corners and the bottom surface of the lower front end of the freezer compartment 31. Although the heat insulating materials 52a and 52b are separate, they may be configured integrally, and the heat insulating material 52c has a U-shaped cross section, but may be configured separately on the bottom surface side and the side surface side. Good.
[0087]
  When the heat insulating material 52 is arranged in this way, the cold air supplied into the freezer compartment 31 from the freezer compartment top surface cold air outlet 5 and the cold air discharged from the freezer compartment cases 7 and 8 which are the objects to be cooled are stored. Direct contact with the freezer door gasket 41 can be prevented. For this reason, the amount of heat leaking from around the freezer compartment door 20 can be reduced, and the temperature distribution in the freezer compartment 31 can be improved.
[0088]
  In the first to third embodiments, the temperature distribution in the freezer compartment 31 is made uniform, for example, for the freezer compartment 31 as a cooling chamber. However, the present invention is not limited to this. When applied to the refrigerator compartment 30 and the switching chamber 29, the temperature distribution in the refrigerator compartment 30 and the switching chamber 29 can be improved.
[0089]
【The invention's effect】
  As explained above, according to the refrigerator-freezer according to the present invention,A cooling chamber having a back side cold air outlet provided on the back side of the room for storing the object to be cooled and blowing out the cold air from the cooler, and the cool air generated by the cooler is blown from the back side cold air outlet to the cooling chamber. A blower fan, a cooling object storage inner container that is installed in the cooling chamber, has a plurality of holes, and has a diameter of a front hole in the cooling chamber larger than a diameter of a rear hole, and the object to be cooled A cooled object storage outer container that surrounds the outside of the storage inner container via a cold air guide passage, and sends the cool air that is sent by the blower fan and flows through the cold air guide path to the inner side of the stored object By being configured to blow out from a plurality of holes provided in the container, it is possible to improve and equalize the temperature distribution in the cooling chamber with a simple configuration without any trouble in and out of the object to be cooled, and to improve the cooling efficiency. Can.
[0090]
  Moreover, according to the refrigerator-freezer according to the present invention,A cooling chamber for storing an object to be cooled, a blower fan for blowing cool air generated by a cooler to the cooling chamber through a cold air passage, a container for storing an object to be cooled installed in the cooling chamber, and the object to be cooled A plurality of dents provided on the inner wall surface of the article storage container, and a lip formed between the dents, wherein the adjacent lips are configured to have a height difference, and a plurality of the dents are provided in the cooling chamber. The amount of the object to be cooled can be obtained by ensuring the ventilation when storing the object to be cooled in the cooling chamber by configuring the structure so that the cold air can flow or the flow direction of the cold air can be changed by flowing the cold air. The temperature unevenness in the cooling chamber can be reduced and the cooling efficiency can be improved even under various usage conditions such as the arrangement in the cooling chamber.
[0091]
  Also,A plurality of cold air blowing portions that communicate the cold air passage with the cooling chamber and blow cold air into the cooling chamber, and a cold air blowing portion that blows cold air into the cooling chamber among the plurality of cold air blowing portions for a predetermined time A control means for switching each time, and configured to change the flow of the cold air blown out from the cold air blowing section in the cooling chamber, thereby ventilating the object to be cooled in the cooling chamber during storage The cooling air can be agitated, and the temperature variation in the cooling chamber can be reduced even under various usage conditions, such as the amount of objects to be cooled and the arrangement in the cooling chamber. Improvements can be made.
[Brief description of the drawings]
FIG. 1 is a refrigerant circuit diagram showing a refrigeration cycle of a refrigerator-freezer according to Embodiment 1 of the present invention.
FIG. 2 is an explanatory diagram showing the arrangement of dew-proof pipes according to the first embodiment.
FIG. 3 is a perspective view showing the freezer compartment and its surroundings according to the first embodiment.
4 is a longitudinal sectional view and a partially enlarged view parallel to the side surface of the refrigerator according to Embodiment 1. FIG.
FIG. 5 is an explanatory diagram showing a flow of cold air near the freezer compartment according to the first embodiment.
FIG. 6 is an explanatory diagram showing a mechanism for rotating the propeller fan according to the first embodiment.
FIG. 7 is an explanatory diagram showing another mechanism for rotating the propeller fan according to the first embodiment.
FIG. 8 is a perspective view showing the vicinity of the freezer compartment according to the first embodiment.
FIGS. 9A and 9B are a perspective view and a top view showing a rotating duct according to the first embodiment. FIGS.
10 is a perspective view showing the vicinity of a freezer compartment according to Embodiment 1. FIG.
FIG. 11 is a front view of the top of the freezer compartment according to Embodiment 1 as seen from the freezer compartment side.
12 is a cross-sectional view showing the vicinity of the freezer compartment according to Embodiment 1. FIG.
FIG. 13 is a front view of the top of the freezer compartment according to Embodiment 1 as viewed from the freezer compartment side.
FIG. 14 is a perspective view showing the vicinity of the freezer compartment according to the first embodiment.
FIG. 15 is an explanatory view showing the flow of cold air according to the first embodiment in a longitudinal section parallel to the side surface.
FIG. 16 is an explanatory diagram showing an example of switching control of a switching outlet according to the first embodiment.
FIG. 17 is a perspective view showing a lower case in a freezer compartment according to Embodiment 2 of the present invention.
FIG. 18 is a perspective view showing a freezer compartment lower case according to the second embodiment.
FIG. 19 is a longitudinal sectional view of the vicinity of a freezer compartment according to another configuration example of the second embodiment.
FIG. 20 is a perspective view showing a freezer compartment lower case according to another configuration example of the second embodiment.
FIG. 21 is an explanatory view showing a cold air blowing hole according to another configuration example of the second embodiment.
FIG. 22 is a perspective view showing a freezer compartment case according to still another configuration example of the second embodiment.
FIG. 23 is a perspective view showing a freezer compartment lower case according to still another configuration example of the second embodiment.
FIG. 24 is a perspective view showing a freezer compartment lower case according to still another configuration example of the second embodiment.
FIG. 25 is an enlarged partial cross-sectional view of a freezer compartment lower case according to still another configuration example of the second embodiment.
FIG. 26 is a perspective view showing a freezer compartment lower case according to still another configuration example of the second embodiment.
FIG. 27 is an explanatory diagram showing heat leakage and circulation of cold air in a freezer compartment of a general-purpose refrigerator-freezer according to Embodiment 3 of the present invention.
FIG. 28 is an explanatory diagram showing heat leakage and cold air circulation in the freezer compartment of a general-purpose refrigerator-freezer according to the third embodiment.
FIG. 29 is an explanatory diagram showing heat leakage and cold air circulation in the freezer compartment according to the third embodiment.
30 is an explanatory diagram showing heat leakage and cold air circulation in the freezer compartment according to Embodiment 3. FIG.
31 is an explanatory diagram showing heat leakage and cold air circulation in a freezer compartment according to another configuration example of Embodiment 3. FIG.
32 is a perspective view showing a freezer compartment upper case according to another configuration example of the third embodiment. FIG.
FIG. 33 is a longitudinal sectional view showing the vicinity of a freezer compartment according to another configuration example of the third embodiment.
FIG. 34 is an explanatory diagram showing, in an enlarged manner, main parts according to another configuration example of the third embodiment.
FIG. 35 is a longitudinal sectional view showing the vicinity of a freezer compartment according to another configuration example of the third embodiment.
FIG. 36 is a perspective view showing a shielding member according to another configuration example of the third embodiment.
FIG. 37 is an explanatory diagram showing a state in the vicinity of the freezer compartment when the freezer compartment door according to another configuration example of the third embodiment is opened.
38 is a longitudinal sectional view showing the vicinity of a freezer compartment according to another configuration example of the third embodiment. FIG.
FIG. 39 is an explanatory diagram showing a state in the vicinity of the freezer compartment when the freezer compartment door according to another configuration example of the third embodiment is opened.
FIG. 40 is a longitudinal sectional view showing the vicinity of a freezer compartment according to another configuration example of the third embodiment.
FIG. 41 is an explanatory diagram showing a part of a freezer compartment according to another configuration example of the third embodiment.
[Explanation of symbols]
  DESCRIPTION OF SYMBOLS 1 Cooler, 2 Air-path grille, 3 ventilation fan, 4 freezing room back surface cold air outlet, 5 freezing room top surface cold air outlet, 6 freezing room cold air inlet, 7 freezing room upper case, 8 freezing room lower case, 8a Cooled object storage inner container, 8b Cooled object storage outer container, 9 propeller fan, 10 interlocking gear, 11 spring, 12 power take-off wind turbine, 13 connecting gear, 14 rotating duct, 14a inlet, 14b air passage, 14c outlet , 15 Cold air outlet, 16 Heat storage member, 17 Cold air guide passage, 18 Cold air discharge slit, 19 Recess, 20 Freezer compartment door, 21 Dew prevention pipe, 22, 22a, 22b Heat insulating material, 23 Cold air outlet hole, 24 Ventilation slit , 25 Shield plate, 26 Freezer top, 28-31 Cooling chamber, 32 Compressor, 33 Cover, 34 Freezer compartment cold air path, 35 Refrigeration room door, 36 Magnet, 37 Cold air outlet hole, 38 Cold air distribution slit, 41 Gasket, 43 Support part, 45 Spiral duct, 46 Freezer room cold air return air path, 47 Roller, 48 space, 50 Support part, 51 Hinging part , 52a to 52c heat insulating material, 53 control means, 54 damper.

Claims (3)

    A cooling chamber having a back side cold air outlet provided on the rear side of the room for storing the object to be cooled and blowing out the cold air from the cooler, and the cool air generated by the cooler is blown from the rear cold air outlet to the cooling chamber. A blower fan, a cooling object storage inner container that is installed in the cooling chamber, has a plurality of holes, and has a diameter of a front hole in the cooling chamber larger than a diameter of a rear hole, and the object to be cooled A cooled object storage outer container that surrounds the outside of the storage inner container via a cold air guide passage, and sends the cool air that is sent by the blower fan and flows through the cold air guide path to the inner side of the stored object A refrigerator-freezer characterized by being configured to blow out from a plurality of holes provided in a container.     A cooling chamber for storing an object to be cooled, a blower fan for blowing cool air generated by a cooler to the cooling chamber through a cold air passage, a container for storing an object to be cooled installed in the cooling chamber, and the object to be cooled A plurality of dents provided on the inner wall surface of the article storage container, and a lip formed between the dents, wherein the adjacent lips are configured to have a height difference, and a plurality of the dents are provided in the cooling chamber. A refrigerator-freezer characterized in that the cold air can flow or the flow direction of the cold air can be changed by flowing cold air. A plurality of cold air blowing portions that communicate the cold air passage and the cooling chamber and blow cold air into the cooling chamber, and a cold air blowing portion that blows cold air into the cooling chamber among the plurality of cold air blowing portions for a predetermined time 3. The refrigerator-freezer according to claim 2 , further comprising a control unit that switches each time, and configured to change a flow of the cold air blown out from the cold air blowing portion in the cooling chamber.

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