JP7185736B2 - refrigerator - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator having a cold air passage on the back side of a storage compartment.

A conventional refrigerator is disclosed in Patent Document 1. This refrigerator has a refrigerating compartment, a freezing compartment, and a vegetable compartment, which are adjacent to each other via an insulating wall. A cold air passage with a cooler and a blower is provided on the back of the freezer compartment. Cool air is generated by a cooler and delivered by a fan. The cold air passage is provided with a discharge port facing the freezer compartment. The discharge ports are arranged on both sides of the back surface of the freezer compartment.

In the refrigerator configured as described above, when the blower is driven, cold air generated by the cooler flows through the cold air passage and is discharged into the freezer compartment from the discharge port. This cools the freezer compartment.

Japanese Patent Application Laid-Open No. 7-260315 (page 6, FIGS. 1 to 3)

According to the above-described conventional refrigerator, cold air is discharged forward from outlets arranged on both sides of the back surface of the freezer compartment, and more cold air flows along the side walls of the freezer compartment. As a result, cold heat is likely to be released to the outside of the refrigerator through the side wall, resulting in poor cooling efficiency of the refrigerator. Since the arrangement of the outlet may be restricted depending on the equipment in the refrigerator, a refrigerator that can discharge cool air in a direction away from the side wall with a simple configuration is desired. In addition, it is desired that cool air can be discharged not only in a direction away from the side wall but also in a desired direction with a simple structure from the discharge port whose arrangement is restricted.

SUMMARY OF THE INVENTION An object of the present invention is to provide a refrigerator capable of discharging cold air in a desired direction with a simple configuration.

In order to achieve the above object, the present invention provides a refrigerator comprising a storage compartment having an open front surface for cold storage of stored items, and a cold air passage disposed on the back side of the storage compartment,
The cold air passage has a guide portion that guides cold air forward and a discharge port that opens at least on the front surface of the guide portion,
providing a shielding portion extending in a facing direction from a front end of the first peripheral wall of the guide portion toward a second peripheral wall facing the first peripheral wall to form a peripheral edge of the discharge port;
A distance in the opposing direction between the ejection port and the first peripheral wall is larger than a distance in the opposing direction between the ejection port and the second peripheral wall.

In addition, in the refrigerator configured as described above, it is preferable that the shielding portion is arranged parallel to the opposing direction.

In addition, in the refrigerator configured as described above, it is preferable that the outlet is formed in contact with the second peripheral wall.

In addition, in the refrigerator configured as described above, it is preferable that the discharge port opens so as to face the side of the second peripheral wall.

Further, according to the present invention, in the refrigerator configured as described above, a plurality of the guide portions are provided, one guide portion has a left side wall formed by the first peripheral wall, and the other guide portion has a right side wall formed by the first peripheral wall. preferably formed.

In addition, in the refrigerator configured as described above, it is preferable that the first peripheral wall be arranged at a position closer to the side wall of the storage compartment than the second peripheral wall.

Further, according to the present invention, in the refrigerator configured as described above, it is preferable that the outlet is divided into a plurality of openings by grid-like ribs.

In the refrigerator configured as described above, it is preferable that the front surface of the rib and the front surface of the shielding portion are arranged on the same plane parallel to the opening surface.

In the refrigerator configured as described above, it is preferable that the rear surface of the rib and the rear surface of the shielding portion are arranged on the same plane parallel to the opening surface.

According to the refrigerator of the present invention, the cold air passage has a guide portion for guiding cold air forward, and a discharge port that opens at least on the front surface of the guide portion, and faces the first peripheral wall from the front end of the first peripheral wall of the guide portion. A shielding portion is provided that extends in the opposite direction toward the second peripheral wall and forms the peripheral edge of the ejection port. The distance between the ejection port and the first peripheral wall in the opposing direction is greater than the distance between the ejection port and the second peripheral wall in the opposing direction. As a result, the cool airflow (cold airflow) along the inner surface of the first peripheral wall collides with the shielding portion and is bent toward the outlet, and hits the cold airflow along the inner surface of the second peripheral wall from the shielding portion side to join. As a result, the cold airflow discharged from the discharge port is bent in the direction opposite to the shielding portion with respect to the discharge port. Therefore, cold air can be discharged in a desired direction with a simple configuration.

The front view which shows the refrigerator of 1st Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS Right side sectional drawing which shows the refrigerator of 1st Embodiment of this invention The perspective view which shows the back panel of the refrigerator of 1st Embodiment of this invention. The front view which shows the back panel of the refrigerator of 1st Embodiment of this invention. AA sectional view of FIG. BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which looked at the cover part of the refrigerator of 1st Embodiment of this invention from the front. FIG. 2 is an enlarged perspective view showing an enlarged guide portion of the refrigerator according to the first embodiment of the present invention; FIG. 2 is an enlarged plan cross-sectional view enlarging the guide portion of the refrigerator according to the first embodiment of the present invention; FIG. 2 is a cross-sectional plan view showing a state at the time of molding the guide portion of the refrigerator according to the first embodiment of the present invention; The enlarged perspective view which expanded the guide part of the refrigerator of 2nd Embodiment of this invention. FIG. 4 is an enlarged cross-sectional plan view showing an enlarged guide portion of a refrigerator according to a second embodiment of the present invention; The enlarged perspective view which expanded the guide part of the refrigerator of 3rd Embodiment of this invention. Enlarged plan sectional view which expanded the guide part of the refrigerator of 3rd Embodiment of this invention

Exemplary embodiments of the invention are described below with reference to the drawings. In this specification, in the refrigerator 1, the side (opening surface OF) on which the doors 2a, 3a, 4a, 5a, and 6a are closed is referred to as the "front side." The side opposite to 5a and 6a is defined as the "rear side". The direction from the "back side" to the "front side" is defined as "forward", and the direction from the "front side" to the "back side" is defined as "rear".

Also, when viewing the refrigerator 1 from the "front" side, the right side is referred to as the "right side" and the left side is referred to as the "left side". The direction from the "left side" side to the "right side" side is defined as the "right direction", and the direction from the "right side" side to the "left side" side is defined as the "left direction".

In the refrigerator 1, the direction toward the floor surface FL in the room is defined as the "downward direction" and the direction away from the floor surface FL is defined as the "upward direction."

<First embodiment>
Embodiments of the present invention will be described below with reference to the drawings. FIG.1 and FIG.2 has shown the front view and right side sectional view of the refrigerator of 1st Embodiment. The refrigerator 1 is installed on the floor surface FL in the room, and is heat-insulated by filling a foamed heat insulating material 12 such as urethane foam between an outer box 10 formed of a coated steel plate or the like and an inner box 11 formed of a resin molding. It has a box 7 . A refrigerating chamber 2 (storage chamber) is formed in the upper portion of the refrigerator 1 by the heat insulating box body 7 . The refrigerator compartment 2 refrigerates stored items such as food.

Below the refrigerating compartment 2, an ice making compartment 5 (storage compartment) and a freezer compartment 4 (storage compartment) are arranged side by side via a partition wall 11a filled with a heat insulating material. Below the freezer compartment 4 and the ice making compartment 5, the freezer compartment 3 (storage compartment) is arranged via the partition part 50. As shown in FIG. The freezer compartments 3 and 4 and the ice making compartment 5 communicate with each other inside through the back of the partition part 50 , and the volume of the freezer compartment 4 is smaller than that of the freezer compartment 3 . The ice-making compartment 5 stores ice made by an automatic ice-making device (not shown), and the freezing compartments 3 and 4 freeze and store stored items such as food.

A vegetable compartment 6 is arranged below the freezer compartment 3 via a partition wall 11b filled with a heat insulating material. The temperature in the vegetable compartment 6 is set higher than the temperature in the refrigerating compartment 2, and vegetables and the like are refrigerated. The front opening OF of the vegetable compartment 6 is opened and closed by a drawer-type door 6a that slides back and forth integrally with the storage case 6b. The vegetable compartment 6 communicates with the refrigerator compartment 2 through a communication passage 26 (see FIGS. 4 and 6). A return port 30c is provided on the rear surface of the vegetable compartment 6. As shown in FIG.

The front opening OF of the refrigerator compartment 2 is opened and closed by a rotating door 2a having a rotating shaft at its side end. A plurality of support portions (not shown) extending in the front-rear direction are vertically aligned and protrude from both side walls of the refrigerator compartment 2 . A shelf 60 made of transparent resin is detachably installed on each support, and storage items are placed on the shelf 60 .

The front opening OF of the ice making chamber 5 is opened and closed by a drawer-type door 5a that slides back and forth integrally with an ice storage case 5b (not shown). The front openings OF of the freezer compartments 3 and 4 are opened and closed by drawer doors 3a and 4a that slide back and forth integrally with storage cases 3b and 4b. A storage case 3c is placed on the storage case 3b.

A panel-shaped vacuum heat insulating material 14 is adhered to the inner surface of the back plate 10a of the outer box 10 with a hot-melt adhesive, a double-sided adhesive tape, or the like. The vacuum heat insulating material 14 includes a core material (not shown) such as glass fiber in a bag-like covering material 14a. In addition, the vacuum heat insulating material 14 is evacuated by vacuuming the inside of the outer covering material 14a, and the end portions of the outer covering material 14a are tightly sealed. The outer covering material 14a is made of a laminated film including a vapor-deposited aluminum film or the like, and has gas barrier properties. Since the vacuum heat insulating material 14 has a lower thermal conductivity than the foam heat insulating material 12, the heat insulating performance of the heat insulating box 7 can be improved.

A machine room 19 is provided behind the vegetable compartment 6 . The bottom and back of the machine room 19 are covered with a bottom plate 19a and a back cover 19b, respectively. A compressor 20 for operating a refrigerating cycle is arranged in the machine room 19 . A cooler 21 is connected to the compressor 20 .

A rear panel 35 made of a resin molded product such as ABS resin is arranged on the rear surface of the freezer compartments 3 and 4 and the ice making compartment 5 , and a cold air passage 30 is formed between the rear panel 35 and the rear surface of the inner box 11 . The cool air passage 30 has a main passage 31 , a guide portion 32 and discharge ports 33 and 34 .

The main passage 31 extends vertically along the inner surface (back surface) of the inner box 11 and has a front portion 31a and a rear portion 31b. The rear portion 31b is arranged behind the front portion 31a via the cover portion 31c, and the cooler 21 for generating cool air is arranged in the rear portion 31b. A through hole 31d (see also FIG. 6) is provided in the cover portion 31c, and a blower 15 (see also FIG. 6) for blowing cool air is arranged in the through hole 31d. The rear portion 31b and the front portion 31a communicate with each other through the through hole 31d.

3 and 4 are a perspective view and a front view showing the rear panel 35. FIG. FIG. 5 is a sectional view taken along line AA of FIG. A return port 30 b facing the freezer compartment 3 is provided at the lower end of the back panel 35 . A plurality of tubular guide portions 32 are formed extending forward from the front portion 31a of the main passage 31 to guide cold air forward. In the present embodiment, the cross section parallel to the opening plane OF (see FIG. 2) of the guide portion 32 is formed in a substantially rectangular shape. In addition, the cross section parallel to the opening plane OF of the guide portion 32 may be circular, elliptical, or polygonal with pentagons or more.

In this embodiment, four guide portions 32 are provided. The four guide portions 32 are arranged at the right end of the upper end of the back panel 35, the left of the upper end, the right end of the center in the vertical direction, and the approximate center, respectively, and are located on the upper right side, the upper left side, and the lower side, respectively. These are referred to as the right guide section 32 and the lower left guide section 32 . The upper right and upper left guide portions 32 face the freezer compartment 4 and the ice making compartment 5, respectively. The guide portions 32 on the lower right side and the lower left side face the freezer compartment 3 and are arranged at approximately the same height as the storage case 3c.

The discharge port 34 is provided below the lower right and lower left guide portions 32 and extends in the left-right direction. The discharge port 34 is divided into a plurality of (three in this embodiment) openings 34b by a plurality of (two in this embodiment) ribs 34a extending vertically. The length of the ejection port 34 in the left-right direction is longer than the length of the ejection port 33 described later in the left-right direction, and the opening area of the ejection port 34 is larger than the opening area of the ejection port 33 .

FIG. 6 is a perspective view of the cover portion 31c as seen from the front. A communicating passage 26 extending vertically is arranged at the right end of the cover portion 31c. A front surface and both side surfaces of the communicating path 26 are covered with a communicating path cover 26a. A rear panel 35 is attached to the left of the communication passage 26 in the cover portion 31c.

7 and 8 are an enlarged perspective view and an enlarged plan sectional view of the guide portion 32 on the right side of the lower stage. Since the guide portions 32 other than the lower right guide portion have the same configuration as the lower right guide portion 32, the lower right guide portion 32 will be described as a representative. The guide portion 32 has a first peripheral wall 32a and a second peripheral wall 32b facing the first peripheral wall 32a. The discharge port 33 opens on the front surface of the guide portion 32 and is formed in contact with the second peripheral wall 32b. In FIG. 4, the discharge ports 33 on the upper right side and the upper left side face the freezer compartment 4 and the ice making compartment 5, respectively. In FIG. 4, the outlets 33 on the lower right side and the lower left side face the freezer compartment 3 and are arranged at approximately the same height as the storage case 3c (see FIG. 2).

A front end portion of the guide portion 32 is provided with a shield portion 32c. The shielding portion 32c forms the periphery of the discharge port 33 by extending in the opposing direction F from the front end of the inner surface of the first peripheral wall 32a toward the second peripheral wall 32b. Specifically, the shielding portion 32c forms one end side (right end side) of the discharge port 33 in the facing direction F when viewed from the front side. Moreover, the shielding part 32c is arranged parallel to the opposing direction F. As shown in FIG. In this embodiment, the ejection port 33 is formed in contact with the second peripheral wall 32b. Specifically, the other end side (left end side) facing the one end side of the discharge port 33 in the facing direction F when viewed from the front side is in contact with the second peripheral wall 32b. Accordingly, the distance in the opposing direction F between the ejection port 33 and the first peripheral wall 32a is larger than the distance in the opposing direction F between the ejection port 33 and the second peripheral wall 32b (0 in this embodiment).

As shown in FIG. 3, the right side wall and the left side wall of the upper right side guide portion 32 and the lower right side guide portion 32 are formed by a first peripheral wall 32a and a second peripheral wall 32b, respectively. The right and left side walls of the upper left and lower left guide portions 32 are formed by the second peripheral wall 32b and the first peripheral wall 32a, respectively. Thereby, the first peripheral wall 32a is arranged at a position closer to the side wall 3s (not shown) of the freezer compartment 3 than the second peripheral wall 32b.

The discharge port 33 is divided into a plurality of openings 33b by grid-like ribs 33a and 33c. In this embodiment, the discharge port 33 is divided into four openings 33b by one vertically extending rib 33a and one horizontally extending rib 33c intersecting the rib 33a. A plurality of ribs 33a and 33c may be provided. Also, one or both of the ribs 33a and 33c may be omitted.

In this embodiment, the peripheral walls of the four guide portions 32 are formed to extend in the same direction. 7 and 8, the ribs 33a and 33c dividing the discharge port 33 do not have inclined surfaces for bending the direction of cool air discharged from the discharge port 33 in a desired direction. That is, the peripheral wall of the guide portion 32 and the ribs 33a and 33c do not have the function of a wind deflector that bends the cold air in a desired direction.

FIG. 9 is a cross-sectional plan view showing the state of the guide portion 32 during molding. A mold 90 for the guide portion 32 is composed of a block 91 and a block 92 that moves vertically with respect to the block 91 in the figure. A concave portion 92a extending in a direction perpendicular to the plane of the drawing and a concave portion 92b (not shown) extending in the horizontal direction in the drawing are provided on the lower surface of the block 92 in the drawing. In the drawing, an arrow R indicates the direction in which the block 92 is pulled out.

The block 91 forms the outer surface and front surface of the first peripheral wall 32a, the outer surface and front surface of the second peripheral wall 32b, the front surface of the shielding portion 32c, and the front surfaces of the ribs 33a and 33c. The block 92 forms the inner surface of the first peripheral wall 32a, the inner surface of the second peripheral wall 32b, the rear and left side surfaces of the shielding portion 32c, both side surfaces and rear surface of the rib 33a, and the upper, lower and rear surfaces of the rib 33c. The recesses 92a form both side surfaces and the rear surface of the rib 33a, and the recesses 92b form the upper surface, the lower surface and the rear surface of the rib 33c.

As described above, the peripheral wall of the guide portion 32 and the ribs 33a and 33c do not independently function as a wind direction deflection plate for bending the direction of cool air in a desired direction. Therefore, it is not necessary to incline the peripheral wall of the guide portion 32 and the ribs 33a and 33c with respect to the drawing direction (arrow R) of the block 92 by a predetermined draft angle or more. In addition, it is not necessary to secure a long longitudinal length of the ribs 33a, 33c in order to allow the ribs 33a, 33c to function as wind deflectors. Therefore, it is not necessary to provide large irregularities or inclined surfaces with large inclination angles on the mating surfaces MF of the blocks 91 and 92 for forming the ribs 33a and 33c. It is formed with small unevenness on the plane. Therefore, the mold 90 can be easily produced. Further, the guide portion 32 can be easily molded integrally with the back panel 35 by the mold 90 .

As shown in FIG. 2 , the cold air passage 40 is connected above the front portion 31 a of the cold air passage 30 via the damper 16 . Cold air passage 40 extends vertically along the inner surface (back surface) of inner box 11 of refrigerating chamber 2 and has a plurality of discharge ports 41 facing refrigerating chamber 2 . Also, a return passage 70 connecting the vegetable compartment 6 and the lower part of the cooler 21 is formed. The cool air that has flowed through the vegetable compartment 6 returns to below the cooler 21 via the return passage 70 .

In the refrigerator 1 configured as described above, when the refrigerating cycle is operated by driving the compressor 20 (see FIG. 2), the cooler 21 is maintained at a low temperature. The air flowing through the rear portion 31 b of the cold air passage 30 by driving the blower 15 exchanges heat with the cooler 21 . This creates cool air. The generated cold air flows into the front portion 31a through the through holes 31d when the blower 15 is driven. A part of the cool air that has flowed into the front portion 31 a flows through the guide portion 32 and is discharged to the freezer compartments 3 and 4 and the ice making compartment 5 through the discharge port 33 . Also, part of the cool air that has flowed through the front portion 31 a is discharged into the freezer compartment 3 through the discharge port 34 . The cold air discharged from the discharge port 33 flows through the freezer compartments 3 and 4 and the ice making chamber 5, and the cold air discharged from the discharge port 34 flows through the freezer compartment 3 and returns to the cooler 21 through the return port 30b. back to Thereby, the freezer compartments 3 and 4 and the ice making compartment 5 are cooled.

At this time, the cool air flowing forward in the guide portion 32 is rectified by the guide portion 32, so that the speed and density of the cool air flowing toward the discharge port 33 are reduced.

The guide portion 32 is provided with a shielding portion 32c extending in the facing direction F from the front end of the first peripheral wall 32a and forming the peripheral edge of the discharge port 33. As shown in FIG. That is, the shielding portion 32c forms one end side (right end side) of the ejection port 33 in the facing direction F when viewed from the front side. As a result, as indicated by an arrow S in FIG. 8, the cold airflow (cold airflow) along the inner surface of the first peripheral wall 32a collides with the shielding portion 32c and is bent toward the discharge port 33, and the inner surface of the second peripheral wall 32b is bent. The cool airflow along the .theta. At this time, the inner surface of the second peripheral wall 32b is in contact with the periphery of the discharge port 33. As shown in FIG. That is, the other end side (left end side) facing the one end side of the discharge port 33 in the facing direction F when viewed from the front side is in contact with the second peripheral wall 32b. Therefore, the cold air flow along the inner surface of the second peripheral wall 32b does not bend toward the first peripheral wall 32a at the front end of the inner surface of the second peripheral wall 32b. As a result, the cool air flow that joins and is discharged from the discharge port 33 is bent in the opposite direction to the shielding portion 32c with respect to the discharge port 33 . That is, the cold air discharged from the discharge port 33 flows in a direction away from the side wall 3s of the freezer compartment 3 on the side of the first peripheral wall 32a.

When the damper 16 (see FIG. 2) is opened, part of the cold air flowing through the front portion 31 a of the cold air passage 30 flows into the cold air passage 40 . As indicated by an arrow S in FIG. 2, the cold air that has flowed through the cold air passage 40 is discharged into the refrigerating compartment 2 from the outlet 41, flows through the refrigerating compartment 2, and then flows out from an outlet (not shown). Thereby, the refrigerator compartment 2 is cooled.

Cold air flowing out from the outlet of the refrigerator compartment 2 flows through the connecting path 26 and flows into the vegetable compartment 6 through an inlet (not shown). The cool air that has flowed into the vegetable compartment 6 flows through the vegetable compartment 6 and returns to the cooler 21 through the return port 30c. The vegetable compartment 6 is thereby cooled.

According to this embodiment, the cold air passage 30 has a guide portion 32 that guides cold air forward and a discharge port 33 that opens on the front surface of the guide portion 32 . A shielding portion 32c that extends in the facing direction F from the front end of the first peripheral wall 32a of the guide portion 32 and forms the peripheral edge of the discharge port 33 is provided.

As a result, the cold airflow along the inner surface of the first peripheral wall 32a collides with the shielding portion 32c and is bent toward the discharge port 33, and hits the cold airflow along the inner surface of the second peripheral wall 32b from the shielding portion 32c side to join. For this reason, the cool air flow that joins and is discharged from the discharge port 33 is bent in the opposite direction to the shielding portion 32c with respect to the discharge port 33 . Therefore, the refrigerator 1 can discharge cold air in a desired direction with a simple configuration.

Moreover, the shielding part 32c is arranged parallel to the opposing direction F. As shown in FIG. As a result, the circulation direction of the cold air flow along the second peripheral wall 32b and the circulation direction of the cold air flow along the shielding portion 32c are substantially perpendicular to each other. Therefore, the cold air flow discharged from the discharge port 33 can be easily bent in the direction opposite to the shielding portion 32c with respect to the discharge port 33 .

Also, the discharge port 33 is formed in contact with the second peripheral wall 32b. As a result, the cold air flow along the second peripheral wall 32b does not bend toward the first peripheral wall 32a at the front end of the inner surface of the second peripheral wall 32b. Therefore, the cold air flow discharged from the discharge port 33 can be more easily bent in the direction opposite to the blocking portion 32c with respect to the discharge port 33. FIG.

As described above, the peripheral wall of the guide portion 32 and the ribs 33a and 33c do not have the function of a wind direction deflection plate for bending the direction of cold air to a desired direction. Therefore, it is not necessary to incline the peripheral wall of the guide portion 32 and the ribs 33a and 33c with respect to the drawing direction (arrow R in FIG. 9) of the mold 90 by a predetermined draft angle or more. A shielding portion 32c extending in the opposite direction F from the front end of the first peripheral wall 32a of the guide portion 32 and forming the peripheral edge of the discharge port 33 is provided. The ejection direction can be bent when That is, since the discharge direction of the cold air can be controlled by the arrangement of the shielding portion 32c forming the peripheral edge of the discharge port 33, the guide portion 32 in which an arbitrary discharge direction is set is integrated with the rear panel 35 by the mold 90. Can be molded.

As shown in FIG. 3, the right side wall and the left side wall of the upper right guide portion 32 are formed by a first peripheral wall 32a and a second peripheral wall 32b, respectively. A right side wall and a left side wall of the upper left guide portion 32 are formed by a second peripheral wall 32b and a first peripheral wall 32a, respectively. That is, the first peripheral wall 32a is arranged at a position closer to the side wall 3s of the freezer compartment 3 than the second peripheral wall 32b. Thereby, the cold air which circulates along 3 s of side walls of the freezer compartment 3 can be decreased. Therefore, cold heat is less likely to be released to the outside through the side walls 3s, and the cooling efficiency of the refrigerator 1 can be improved.

The lower left guide portion 32 (one guide portion 32) has a left side wall formed by the first peripheral wall 32a, and the lower right guide portion 32 (another guide portion 32) has a right side wall formed by the first peripheral wall 32a. is formed. As a result, the central portion in the left-right direction of the freezer compartment 3 can be intensively cooled by the cold air discharged from the right and left discharge ports 33 . Further, for example, the lower right guide portion 32 (one guide portion 32) has a left side wall formed by the first peripheral wall 32a, and the lower left guide portion 32 (another guide portion 32) has the first peripheral wall 32a. may form the right side wall. In this case, the left and right portions of the freezer compartment 3 can be cooled intensively. As described above, even when a plurality of guide portions 32 are provided on one back panel 35 and the cold air is discharged in different directions by the shielding portion 32c, the peripheral wall of each guide portion 32 and the ribs 33a and 33c are , there is no need to make different inclined surfaces according to the discharge direction of cool air. That is, a plurality of guide portions 32 having various discharge directions of cold air can be integrally formed with the back panel 35 by using a mold 90 having a predetermined extraction direction indicated by an arrow R in FIG. Cost can be reduced.

Further, the ejection port 33 is divided into a plurality of openings 33b by grid-like ribs 33a and 33c. As a result, the cool air flow discharged from the discharge port 33 can be easily rectified, and the cool air flow can be smoothly discharged from the discharge port 33 .

Further, the front surface of the rib 33a and the front surface of the shielding portion 32c are arranged on the same plane parallel to the opening plane OF. As a result, the mating surface MF between the block 91 and the block 92 of the mold 90 is formed on a plane substantially perpendicular to the extraction direction when the guide portion 32 is molded. Therefore, the mold 90 can be easily manufactured, and the manufacturing cost of the refrigerator 1 can be reduced.

The rear surface of the rib 33a and the rear surface of the shielding portion 32c may be arranged on the same plane parallel to the opening plane OF. Even in this case, the mating surface MF between the block 91 and the block 92 of the mold 90 is formed on a plane substantially perpendicular to the extraction direction when the guide portion 32 is molded. Therefore, the mold 90 can be easily manufactured, and the manufacturing cost of the refrigerator 1 can be reduced.

<Second embodiment>
Next, a second embodiment of the invention will be described. 10 and 11 are an enlarged perspective view and an enlarged plan sectional view of the guide portion 32 of the refrigerator 1 of the second embodiment. For convenience of explanation, the same parts as those of the first embodiment shown in FIGS. 1 to 9 are given the same reference numerals. In the second embodiment, the configuration of the ejection port 33 is different from that in the first embodiment. Other parts are the same as in the first embodiment.

In this embodiment, the ribs 33c extending horizontally are omitted, and two ribs 33a extending vertically are provided. The front end of the left side wall (second peripheral wall 32b) of the guide portion 32 is arranged behind the front end of the right side wall (first peripheral wall 32a). As a result, the discharge port 33 of the guide portion 32 opens to face the side of the left side wall (second peripheral wall 32b). The front end of the first peripheral wall 32a and the front end of the second peripheral wall 32b may be positioned at the same position in the front-rear direction, and a through hole or a notch may be provided in the vicinity of the front end of the second peripheral wall 32b of the guide portion 32.

In the refrigerator 1 configured as described above, when the blower 15 is driven, the cold air flow discharged from the discharge port 33 is bent in the direction opposite to the blocking portion 32c with respect to the discharge port 33, as in the first embodiment. At this time, the discharge port 33 of the guide portion 32 is open facing the side of the second peripheral wall 32b. As a result, the cool air that has flowed through the guide portion 32 can be easily discharged to the discharge port 33 in the opposite direction to the shield portion 32c.

This embodiment can also obtain the same effect as the first embodiment. Also, the discharge port 33 opens to face the side of the second peripheral wall 32b. As a result, the cool air that has flowed through the guide portion 32 can be easily discharged to the discharge port 33 in the opposite direction to the shield portion 32c.

<Third Embodiment>
Next, a third embodiment of the invention will be described. 12 and 13 are an enlarged perspective view and an enlarged plan sectional view of the guide portion 32 of the refrigerator 1 of the third embodiment. For convenience of explanation, the same parts as those of the first embodiment shown in FIGS. 1 to 9 are given the same reference numerals. In the third embodiment, the configuration of the discharge port 33 of the guide portion 32 is different from that in the first embodiment. Other parts are the same as in the first embodiment.

In this embodiment, the ribs 33a and 33c are omitted, and the ejection port 33 is formed by one opening 33b. A shielding portion similar to the shielding portion 32c is provided at the front end of the second peripheral wall 32b of the guide portion 32. As shown in FIG. At this time, the distance D1 in the opposing direction F between the ejection port 33 and the first peripheral wall 32a is larger than the distance D2 in the opposing direction F between the ejection port 33 and the second peripheral wall 32b. Although the distance D2 is 0 in the first embodiment, the distance D2 is greater than 0 in this embodiment.

In the refrigerator 1 configured as described above, when the blower 15 is driven, the cold air flow discharged from the discharge port 33 is bent in the direction opposite to the blocking portion 32c with respect to the discharge port 33, as in the first embodiment. At this time, the distance D1 in the opposing direction F between the ejection port 33 and the first peripheral wall 32a is greater than the distance D2 in the opposing direction F between the ejection port 33 and the second peripheral wall 32b. As a result, the amount of cool air that hits the cool air stream in the vicinity of the downstream of the discharge port 33 from the sides is greater from the shielding portion 32c side of the first peripheral wall 32a than from the second peripheral wall 32b side. Therefore, the cold air flow discharged from the discharge port 33 is bent in the opposite direction to the shielding portion 32c with respect to the discharge port 33 . That is, the cold air discharged from the discharge port 33 flows in a direction away from the side wall 3s of the freezer compartment 3 on the side of the first peripheral wall 32a.

This embodiment can also obtain the same effect as the first embodiment. Moreover, since the ribs 33a and 33c are not provided, the mold 90 can be easily manufactured, and the manufacturing cost of the refrigerator 1 can be further reduced. One or both of the ribs 33a and 33c may be provided as in the first embodiment without omitting the ribs 33a and 33c.

Also, the distance D1 in the opposing direction F between the ejection port 33 and the first peripheral wall 32a is greater than the distance D2 in the opposing direction F between the ejection port 33 and the second peripheral wall 32b.

As a result, the amount of cool air that hits the cool air flow in the vicinity of the downstream side of the discharge port 33 from the sides is greater from the shielding portion 32c side of the first peripheral wall 32a than from the second peripheral wall 32b side. Therefore, even if a shielding portion similar to the shielding portion 32c is provided at the front end of the second peripheral wall 32b, the cool air flow discharged from the outlet 33 is bent in the direction opposite to the shielding portion 32c with respect to the outlet 33. Therefore, the refrigerator 1 can discharge cold air in a desired direction with a simple configuration.

In the first to third embodiments, the cold air passage 40 may have guide portions similar to the guide portions 32 .

Further, in the first to third embodiments, the upper wall or the lower wall of the guide portion 32 may be formed by the first peripheral wall 32a. As a result, the cold air flow discharged from the discharge port 33 can be bent downward or upward.

Also, the guide portions 32 of the first to third embodiments may be appropriately combined and provided on one back panel 35 . For example, in FIG. 4, the upper left guide portion 32 is formed by a guide portion similar to the guide portion 32 of the third embodiment, and the upper right guide portion 32 is formed by a guide portion similar to the guide portion 32 of the second embodiment. It may be formed by a guide.

Further, in the first to third embodiments, the guide portion 32 protrudes forward from the front surface of the rear panel 35, but may protrude rearward from the front surface of the rear panel 35. FIG. It is preferable to form the guide portion 32 so as to protrude forward from the front surface of the rear panel 35 because it is possible to prevent the first peripheral wall 32a and the second peripheral wall 32b of the guide portion 32 from interfering with the flow of cool air in the main passage 31.

INDUSTRIAL APPLICABILITY According to the present invention, it can be used in a refrigerator having a cold air passage on the back side of the storage compartment.

1 refrigerator 2 cold room (storage room)
2a, 3a, 4a, 5a, 6a door 3, 4 freezer compartment (storeroom)
3b, 3c, 4b, 5b, 6b storage case 3s side wall 5 ice making compartment (storage compartment)
6 vegetable compartment 7 heat insulation box 10 outer box 10a back plate 11 inner box 11a, 11b partition wall 12 foam insulation material 14 vacuum insulation material 15 blower 16 damper 20 compressor 21 cooler 30, 40 cold air passages 30b, 30c return port 31 Main passage 31a Front portion 31b Rear portion 31c Cover portion 31d Through hole 32 Guide portion 32a First peripheral wall 32b Second peripheral wall 32c Shielding portion 33, 34, 41 Discharge port 33a, 33c Rib 33b Opening 33s Side wall 35 Back panel 50 Partition 60 Shelf 70 Return passage F Facing direction FL Floor surface OF Opening surface N Normal line S Arrow

Claims (7)

A refrigerator comprising a storage compartment that has an open surface on the front side to cool and store stored items, and a cold air passage arranged on the back side of the storage compartment,
The cold air passage has a guide portion for guiding cold air forward and a rib,
The guide section
a first peripheral wall and a second peripheral wall facing each other;
a discharge port opening at least on the front surface of the guide;
a shielding portion protruding from the first peripheral wall toward the second peripheral wall in the facing direction of the first peripheral wall and the second peripheral wall;
The rib divides the discharge port ,
The guide portion is formed on one side in the left-right direction of the center of the storage chamber in the left-right direction,
The first peripheral wall faces the second peripheral wall in the left-right direction and is formed on the one side in the left-right direction with respect to the second peripheral wall,
refrigerator. A refrigerator comprising a storage compartment that has an open surface on the front side to cool and store stored items, and a cold air passage arranged on the back side of the storage compartment,
The cold air passage has a guide portion for guiding cold air forward and a rib,
The guide section
a first peripheral wall and a second peripheral wall facing each other;
a discharge port opening at least on the front surface of the guide;
a shielding portion protruding from the first peripheral wall toward the second peripheral wall in the facing direction of the first peripheral wall and the second peripheral wall;
The rib divides the discharge port,
The cold air passage has two guide portions arranged in the left-right direction,
In each of the two guide portions, the first peripheral wall and the second peripheral wall face each other in the left-right direction,
In one guide portion of the two guide portions, the first peripheral wall is formed on a side opposite to the other guide portion of the two guide portions with respect to the second peripheral wall,
In the other guide portion, the first peripheral wall is formed on a side opposite to the one guide portion with respect to the second peripheral wall,
refrigerator. The rib divides the discharge port in the facing direction,
The refrigerator according to claim 1 or 2 . The rib is formed along the front-rear direction,
The refrigerator according to any one of claims 1-3 . The shielding part is formed to protrude from the front end of the first peripheral wall,
The refrigerator according to any one of claims 1-4 . The second peripheral wall is formed such that at least a portion of a front end of the second peripheral wall is positioned rearward of the shielding portion.
The refrigerator according to any one of claims 1-5 . The discharge port is formed so that a side opposite to the first peripheral wall in the facing direction is further opened.
The refrigerator according to claim 6 .

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