JP5968166B2 - Cooling system - Google Patents

Description

  The present invention relates to a cooling device used for cooling the inside of a space to be cooled typified by a refrigerator or the like.

Conventionally, as this type of cooling device, for example, those described in Patent Document 1 and Non-Patent Document 1 below are known. The cooling devices described in these documents have a main body casing formed in a box shape having an air inlet and an air outlet, and an outlet duct attached to the air outlet of the main body casing. The main body casing incorporates an evaporator of a refrigerant circuit and a blower fan, and the blowout duct has an opening for blowing out cool air from the air blower outlet to the space to be cooled. In such a cooling device, when installed in a refrigerator or the like, the direction in which the cooling air is blown out is uniquely determined by the direction in which the cooling device is installed.
On the other hand, as described above, after the cooling device is installed in a refrigerator or the like, the cold air blowing direction is determined, but there are some devices that can adjust the vertical angle of the cold air blowing direction (see Non-Patent Document 2, for example).

JP 2001-174129 A (paragraphs [0002], [0003], FIG. 12, FIG. 13).

Mitsubishi Electric refrigerator cooling system cool multi general catalog January 2012. Hitachi Refrigeration Unit Catalog February 2011.

Since the conventional cooling device described above has a structure in which the cold air blowing direction is uniquely determined by the direction in which it is installed in the refrigerator or the like, after the cooling device is installed, the blowing direction of the cold air blown from the blowing duct cannot be changed. There was a problem that the blowing air volume could not be changed.

The present invention has been made to solve the above-described problems, and a first object is to change the cool air blowing direction without changing the installation direction of the cooling device even after the cooling device is installed in a refrigerator or the like. The cooling device which can be obtained is obtained.
The second object is to obtain a cooling device capable of changing the blown air volume in accordance with the user's intention.
The third object is to obtain a cooling device that optimizes the flow of wind in the space to be cooled and can cool the space to be cooled uniformly.

A cooling device according to the present invention is formed in a box shape having an air suction port and an air outlet, and is attached to a main body casing incorporating an evaporator and a blower fan of a refrigerant circuit, and an air outlet of the main body casing. A cooling duct having an opening for blowing cool air from the air blowing outlet into the space to be cooled, and the blowing duct is formed as a hollow box-like polyhedron having four or more faces. The structure includes a blowing direction variable structure for changing a blowing direction of the cold air to the cooled space, and the blowing direction variable structure is configured such that a part of the plurality of face plate members constituting each face of the polyhedron is different from other remaining face plate materials. It is a structure that is detachably removed to form an opening.
Further, the cooling device according to the present invention is formed in a box shape having an air inlet and an air outlet, and includes a main body casing having a refrigerant circuit evaporator and a blower fan, and an air outlet of the main body casing. A cooling duct having an opening for blowing cool air from an air outlet into the space to be cooled, wherein the blow duct changes the direction of the cold air blown into the space to be cooled The blowing direction variable structure includes a sliding lid that is slidably provided in a blowing duct in the vicinity of the opening, and opens and closes the opening by sliding the sliding lid. It is configured to change the blowing direction of the cold air.

  In the cooling device according to the present invention, since the blowout duct is provided with the blowout direction variable structure for changing the blowout direction of the cold air to the cooled space, the cold air is blown into the cooled space even after the blowout duct is installed. The direction can be changed. Accordingly, it is possible to select direct application or indirect application of cold air according to the position of the object to be cooled stored in the space to be cooled such as a refrigerator.

It is a schematic block diagram which shows the cooling device and refrigerator in Embodiment 1 of this invention. It is a circuit block diagram which shows the refrigerant circuit of the said cooling device. It is a disassembled perspective view which shows the blowing duct of the said cooling device. It is a perspective view which shows the said blowing duct. It is explanatory drawing which shows the state which formed the opening part in the left side surface of the said blowing duct. It is a perspective view which shows the blowing duct of the cooling device in Embodiment 2 of this invention. It is a perspective view which shows the cold air blowing state by the said blowing duct. It is the general | schematic plane sectional view which looked at the inside of the said blowing duct from the upper surface. It is a schematic block diagram which shows the cooling device and refrigerator in Embodiment 3 of this invention. It is the side block diagram which looked at the blowing duct of the said cooling device from the side surface. It is the schematic sectional side view which looked at the blowing duct of the said cooling device from the side surface. It is a bottom view which shows the blowing duct of the said cooling device.

Embodiment 1 FIG.
1 is a schematic configuration diagram showing a cooling device and a refrigerator in Embodiment 1 of the present invention, and FIG. 2 is a circuit configuration diagram showing a refrigerant circuit of the cooling device.
In each figure, the cooling device 1 according to this embodiment is installed on the upper surface of a refrigerator 17, for example, and includes a refrigerant circuit. In this refrigerant circuit, general-purpose compressors 10, a condenser 9, a throttle device 19, and an evaporator 13 are connected in an annular shape through refrigerant pipes 20 to 23, respectively. The main body casing 11 of the cooling device 1 is formed in a box shape having an air inlet 35 and an air outlet 37. The air inlet 35 and the air outlet 37 are connected via an air passage 36 formed in the main body casing 11. An evaporator 13 and a blower fan 12 are built in the ventilation path 36, and a drain pan 14 that receives drain water dripped from the evaporator 13 is disposed below the evaporator 13. In the vicinity of the condenser 9, a blower fan 8 for blowing outdoor air is provided. In the refrigerator 17 having such a configuration, food (not shown) such as brown rice is accommodated and stored at 10 to 15 ° C., for example.

The air outlet 37 of the main body casing 11 is connected to the air outlet duct 24 for adjusting the cool air from the air outlet 37 and blowing it out to the interior 18 of the refrigerator 17 (an example of the space to be cooled). The blowout duct 24 is formed in the shape of a hollow box (hexahedron) having a rectangular shape in plan view with an upper surface opened, and is fixed to the ceiling portion of the interior 18 with screws or the like. As shown in FIGS. 3 and 4, the blowout duct 24 has a face plate portion 7 </ b> A having a rectangular shape in plan view, which is disposed substantially horizontally, and a duct substrate 7 formed in the shape of a side section L, and a duct substrate. The three face plate members 2, 3, and 4 that are detachably attached to the three side portions of the face plate portion 7A, the duct attachment plate member 5 of the refrigerator 17 that is attached to the bottom plate portion of the duct substrate 7, It comprises the screws B, B, B,... For assembling and fixing the members.

The face plate members 2, 3, and 4 are composed of two upper and lower horizontal plate portions and a flange plate portion that connects them, and are formed in a shape of a side section S. Screw holes H, H, H, and H that are screwed into the screws B are formed in the upper and lower horizontal plate portions of the face plate members 2, 3, and 4 and the face plate portion 7A of the duct substrate 7, respectively. Screw holes H and H that are screwed into the screws B are also formed in the flange portion of the duct substrate 7. Long holes HL and HL for adjusting the vertical fixing position of the duct board 7 are formed at positions facing the screw holes H and H of the board portion of the duct board 7 in the board portion of the duct mounting plate material 5. Has been. A heat insulating material is affixed to the horizontal plate portion of the duct mounting plate material 5, and the long hole HL is slid so as to crush the heat insulating material, thereby fixing the duct mounting plate material 5 and the duct substrate 7. And in this blowing duct 24, the face plate material 2 which comprises the duct front surface is removed by removing the screws B and B, so that the portion is an opening for blowing cold air from the air outlet 37 to the interior 18. Part 25. The removed face plate material 2 is stored for future use.

  Next, the operation will be described. In the refrigerant circuit of the cooling device 1 configured as described above, during the cooling operation, the refrigerant is compressed by the compressor 10 to become a high-temperature and high-pressure gas refrigerant, flows into the condenser 9 through the refrigerant pipe 20, and the outside air. Heat exchanges and condenses. The condensed high-pressure liquid refrigerant passes through the refrigerant pipe 21 and is decompressed by the expansion device 19 to become a low-pressure two-phase refrigerant. This low-pressure two-phase refrigerant absorbs heat from the air from the inside 18 in the evaporator 13, becomes a low-pressure gas refrigerant, passes through the gas pipe 23, and is sucked into the compressor 10 again. By such a series of refrigeration cycle operations, the interior 18 is cooled by absorbing heat from the cooling load in the interior 18 and dissipating heat to the outside air. At this time, in the main body casing 11, the air in the refrigerator 18 is taken into the ventilation path 36 from the air suction port 35 as shown by the arrow 15 by driving the blower fan 12, and passes through the evaporator 13. After being cooled, the air is blown out from the air outlet 37 as indicated by an arrow 16.

  The cool air sent from the air outlet 37 into the blowout duct 24 strikes the face plate portion 7A and changes its direction in the horizontal direction, and is then blown forward from the opening 25 and returned to the interior 18. On the other hand, there is a case where it is desired to blow out cold air from the left or right side of the blowout duct 24 due to a change in the usage situation of the interior 18. In such a case, the stored face plate material 2 closes the current opening 25 and is screwed. Then, the face plate material 3 or the face plate material 4 is removed by removing the screws B, and a new opening 25 is formed. That is, any one or a plurality of face plate members 2, 3, 4 constituting the side surface of the hollow box in the blowout duct 24 is detachably detached from the duct substrate 7 to form one or a plurality of openings 25. It has become. Such a configuration is the blowing direction variable structure 6 for changing the blowing direction of the cold air blown from the opening 25 to the interior 18.

As described above, in the cooling device 1 according to this embodiment, the direction in which the cool air is blown out even after installation in the refrigerator 7 by attaching and detaching the face plate material 2, the face plate material 3, and the face plate material 4 constituting the blowing direction variable structure 6. Can be selected. For example, when the face plate material 3 is removed, cold air can be blown out in the right direction. Conversely, when the face plate material 4 is removed, cold air can be blown out to the left (see FIG. 5). Moreover, if both the face plate material 3 and the face plate material 4 are removed, it becomes possible to blow out cold air in both the left and right directions.

In the above description, the hexahedral blowing duct 24 having a rectangular box shape having an upper surface opening is illustrated, but the hollow box shape having an opening connected to the air outlet of the cooling device is formed as a polyhedron having four or more surfaces. If it is, it is ok. And as a blowing direction variable structure, the some face plate material which comprises each surface of a polyhedron should just be the structure which detachably removes from other remaining face plate materials, and comprises an opening part.

Embodiment 2. FIG.
In the first embodiment described above, only the maximum two blow directions can be selected in addition to the previous blow direction. However, an example of a blow duct used when two or more blow directions are selected is shown in the second embodiment. I will explain it.
In this Embodiment 2, as shown in FIG.6, FIG.7, FIG.8, the blowing duct 24A is replaced with the blowing duct 24 of Embodiment 1 mentioned above, and the air suction inlet 35 and the air blower outlet 37 of the cooling device 1. FIG. Attached to. The blowout duct 24A includes a front circular rear box-shaped casing 43 in plan view, and the casing 43 is partitioned into a rear suction side air passage 40 and a front blowout side air passage 41 by a partition wall 39. Has been. The suction side air passage 40 is connected to the air inlet 35, and the outlet side air passage 41 is connected to the air outlet 37. And the wide opening part 38 is formed over the wide range from the front surface of the blowing side air path 41 to both side surfaces. On the floor surface and the ceiling surface in the vicinity of the wide opening 38 in the blow-out side air passage 41, a semicircular guide groove 42 is formed so as to be opposed to each other in a pair of upper and lower sides in plan view. In the pair of upper and lower guide grooves 42, 42, for example, three sliding lid bodies 26, 26, 26 are accommodated so as to be slidable in the horizontal direction. Thereby, the clearance gap between the slide-type lid bodies 26-26, or the clearance gap between the slide-type lid body 26-wide opening part 38 end wall becomes an opening part for cold air blowing. In the example shown in FIG. 8, four openings 25a, 25b, 25c, and 25d are formed.

  As mentioned above, in this blowing duct 24A, cold air can be blown out from at least four openings 25a to 25d. In addition, since the sliding lid 26 can be moved in the horizontal direction, the opening area of each opening 25a to 25d can be changed to adjust the amount of cold air blown from these, and the direction of the cold air blowing can be changed. It can be easily changed. These are effective when it is not desired to directly apply cold air to the stored items in order to prevent the stored items in the refrigerator from drying. In addition, when a person works in a refrigerator, it is possible not to directly apply cold air to the person. In addition, the number of openings can be changed depending on the number of slide type lids 26 used, and the selection range in the blowing direction is widened. That is, the wide opening 38 formed in the casing 43 is partially closed by one or more slide lids 26, and the sliding lid 26 is moved in the horizontal direction to move the open / close position in the wide opening 38. The structure for changing the blowing direction of the cold air by changing the air blowing direction is the blowing direction variable structure 6A in the present embodiment.

Embodiment 3 FIG.
Next, Embodiment 3 for optimizing the flow of the wind in the interior 18 and cooling the interior 18 uniformly will be described.
In this embodiment, as shown in FIGS. 9, 10, 11, and 12, a blowout duct 29 is attached to a lower position of the cooling device 1. The blowout duct 29 includes a box-shaped casing 45 whose upper surface is open, and the inside of the casing 45 is partitioned by a partition wall 32 into a suction side air passage 48 on the rear side and a blower side air passage 50 on the front side. A suction side connection port 47 that is an upper surface opening of the suction side air passage 48 is connected to the air suction port 35, and an outlet side connection port 49 that is an upper surface opening of the discharge side air passage 50 is connected to the air outlet 37. A plurality of suction ports 34a, 34b, 34c, 34d are formed on the bottom surface of the suction side air passage 48 at predetermined intervals in the front-rear direction, and wind direction plates 31a, 31b, 31c, 31d are erected at positions near them. ing. These wind direction plates 31a to 31d are arranged in directions that are directed toward the air suction port 35 and are different from each other. That is, the wind direction plates 31a to 31d of this embodiment are arranged radially so as to be directed to the air suction port 35 when viewed from the side. On the other hand, a plurality of air outlets 33a, 33b, 33c, and 33d are formed at predetermined intervals in the front and rear sides of the air outlet 50 at the outer position of the air outlet 37, and at positions near these air outlets. Wind direction plates 30a, 30b, 30c, and 30d are erected. These wind direction plates 30a to 30d are arranged in directions that are directed toward the air outlet 37 and are different from each other. That is, the wind direction plates 30a to 30d of this embodiment are arranged radially to face the air outlet 37 when viewed from the side.

  In the cooling device 1 having the above-described configuration, the cold air blown out from the air outlet 37 is rectified by the airflow direction plates 30a, 30b, 30c, and 30d in the outlet side air passage 50 of the outlet duct 29 as shown in FIG. After that, the air is blown out radially from the air outlets 33a, 33b, 33c, 33d to the interior 18 (directions indicated by arrows 27a, 27b, 27c, 27d). On the other hand, the air in the warehouse 18 is collected so as to be directed to the air suction port 35 due to the presence of the wind direction plates 31a, 31b, 31c, 31d in the suction side air passage 48 of the blowout duct 29 (arrows 28a, 28b, 28c). , 28d), are introduced into the suction side air passage 48 from the suction ports 34a, 34b, 34c, 34d, and are further sucked into the ventilation passage 36 from the air suction port 35.

  As described above, the blowout duct 29 of this embodiment includes the wind direction plates 30a, 30b, 30c, and 30d and the wind direction plates 31a, 31b, 31c, and 31d, and thus preferably rectifies the flow of the blowout air and the suction air. be able to. Thereby, an optimal wind flow can be created in the interior 18. As a result, the temperature of the interior 18 can be made nearly uniform.

In the first to third embodiments, the cooling device attached to the refrigerator has been described. Needless to say, however, the cooling device of the present invention can be applied to, for example, an air conditioner that performs a cooling operation.

DESCRIPTION OF SYMBOLS 1 Cooling device 2 Face plate material 3 Face plate material 4 Face plate material 5 Duct mounting plate material 6, 6A Blowing direction variable structure 7 Duct substrate 7A Face plate portion 11 Main body casing 12 Blower fan 13 Evaporator 18 Inside (cooled space)
24, 24A Blowout ducts 25, 25a, 5b, 25c, 25d Opening 26 Sliding lid bodies 30a-30d Airflow direction plate 35 Air suction port 37 Air blowout port 42 Guide groove 50 Blowing side air passage B Screw H Screw hole

Claims (2)

A main body casing which is formed in a box shape having an air inlet and an air outlet and incorporates an evaporator and an air blowing fan of a refrigerant circuit, and is attached to the air outlet of the main body casing and is connected to the air outlet. A cooling duct having an opening duct for blowing the cool air into the space to be cooled,
The blowout duct is formed in a hollow box shape as a polyhedron having four or more faces, and includes a blowout direction variable structure for changing a blowout direction of the cold air to the cooled space ,
The cooling direction changing structure is a cooling device in which a part of a plurality of face plate members constituting each face of the polyhedron is detachably detached from other remaining face plate members to form the opening . A main body casing which is formed in a box shape having an air inlet and an air outlet and incorporates an evaporator and an air blowing fan of a refrigerant circuit, and is attached to the air outlet of the main body casing and is connected to the air outlet. A cooling duct having an opening duct for blowing the cool air into the space to be cooled,
The blowing duct includes a blowing direction variable structure for changing a blowing direction of the cold air to the cooled space ,
The blowing direction variable structure includes a slide-type lid that is slidably provided in a blow-out duct near the opening, and the opening is opened and closed by sliding the slide-type lid to change the direction in which the cold air is blown out. A cooling device configured to be .

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