JP2018185061A - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a refrigerator capable of discharging cold air to a desired direction with a simple structure.SOLUTION: A refrigerator includes: a refrigeration chamber (storage chamber) having an aperture on its front face, and configured to cool and store an object to be stored; and a cold air passage arranged on a back face of the refrigeration chamber. The cold air passage has a guide part configured to guide cold air forward, and a discharge port 33 opened on a front face of the guide part. A shielding part 32c extends in an opposite direction F from a front end of a first peripheral wall 32a of the guide part toward a second peripheral part 32b opposite to the first peripheral wall 32a, and forms a peripheral edge of the discharge port 33. A distance D1 in the opposite direction F between the discharge port 33 and the first peripheral wall 32a is larger than a distance D2 in the opposite direction F between the discharge port 33 and the second peripheral wall 32b.SELECTED DRAWING: Figure 13

Description

  The present invention relates to a refrigerator provided with a cold air passage on the back surface of a storage room.

  A conventional refrigerator is disclosed in Patent Document 1. This refrigerator has a refrigerator compartment, a freezer compartment, and a vegetable compartment adjacent to each other through a heat insulating wall. A cold air passage provided with a cooler and a blower is provided on the back of the freezer compartment. Cold air is generated by the cooler, and cold air is sent out by the blower. The cool air passage is provided with a discharge port facing the freezer compartment. Discharge ports are arranged on both sides of the back 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 from the discharge port into the freezer compartment. Thereby, the freezer compartment is cooled.

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

  According to the conventional refrigerator, cold air is discharged forward from the discharge ports arranged on both sides of the freezer compartment, and the amount of cold air flowing along the side walls of the freezer compartment increases. Thereby, it becomes easy to discharge | release cold heat | fever outside a warehouse via a side wall, and the cooling efficiency of a refrigerator worsens. Since arrangement | positioning may be restrict | limited by the apparatus in a store | warehouse | chamber, the refrigerator which can discharge cold air in the direction away from a side wall with a simple structure is desired. In addition, it is desired that the cool air can be discharged not only in a direction away from the side wall but also in a desired direction from a discharge port whose arrangement is limited with a simple configuration.

  An object of the present invention is to provide a refrigerator capable of discharging cool air in a desired direction with a simple configuration.

In order to achieve the above object, the present invention provides a refrigerator including a storage chamber having an opening surface on a front surface and storing stored items in a cold state, and a cold air passage disposed on the back surface of the storage chamber.
The cold air passage has a guide part that guides the cold air forward, and a discharge port that opens at least on the front surface of the guide part;
Providing a shielding part that extends from the front end of the first peripheral wall of the guide part toward the second peripheral wall facing the first peripheral wall to form the periphery of the discharge port;
The distance in the facing direction between the discharge port and the first peripheral wall is larger than the distance in the facing direction between the discharge port and the second peripheral wall.

  In the refrigerator having the above-described configuration, it is preferable that the shielding portion is arranged in parallel to the facing direction.

  In the refrigerator having the above-described configuration, it is preferable that the discharge port is formed in contact with the second peripheral wall.

  In the refrigerator configured as described above, it is preferable that the discharge port is opened facing the side of the second peripheral wall.

  In the refrigerator having the above-described configuration, the present invention includes a plurality of the guide portions, wherein one guide portion forms a left side wall by the first peripheral wall, and the other guide portion has a right side wall by the first peripheral wall. Preferably it is formed.

  In the refrigerator configured as described above, it is preferable that the first peripheral wall is disposed closer to the side wall of the storage chamber than the second peripheral wall.

  In the refrigerator having the above-described configuration, the discharge port is preferably divided into a plurality of openings by lattice-shaped ribs.

  In the refrigerator configured as described above, preferably, 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 that guides the cold air forward, and a discharge port that opens on at least 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 facing direction toward the second peripheral wall and forms the periphery of the discharge port. The distance in the facing direction between the discharge port and the first peripheral wall is larger than the distance in the facing direction between the discharge port and the second peripheral wall. Thereby, the cold airflow (cold airflow) along the inner surface of the first peripheral wall collides with the shielding portion and is bent toward the discharge port side, and hits and joins the cold airflow along the inner surface of the second peripheral wall from the shielding portion side. Thereby, the cold air current discharged from the discharge port is bent in the direction opposite to the shielding portion with respect to the discharge port. Therefore, it is possible to discharge cool air in a desired direction with a simple configuration.

The front view which shows the refrigerator of 1st Embodiment of this invention. Sectional drawing on the right side showing the refrigerator according to the first embodiment of the present 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. The perspective view which looked at the cover part of the refrigerator of 1st Embodiment of this invention from the front The expanded perspective view which expanded the guide part of the refrigerator of 1st Embodiment of this invention. The expanded plane sectional view which expanded the guide part of the refrigerator of a 1st embodiment of the present invention. Plan sectional drawing which shows the state at the time of shaping | molding of the guide part of the refrigerator of 1st Embodiment of this invention. The expanded perspective view which expanded the guide part of the refrigerator of 2nd Embodiment of this invention. The expanded plane sectional view which expanded the guide part of the refrigerator of a 2nd embodiment of the present invention. The expanded perspective view which expanded the guide part of the refrigerator of 3rd Embodiment of this invention. The expanded plane sectional view which expanded the guide part of the refrigerator of a 3rd embodiment of the present invention.

  Hereinafter, exemplary embodiments of the present invention will be described with reference to the drawings. In the present specification, in the refrigerator 1, the surface (opening surface OF) on which the doors 2 a, 3 a, 4 a, 5 a, 6 a are closed is referred to as “front side”, and the doors 2 a, 3 a, 4 a, The opposite side of 5a and 6a is referred to as the “back side”. The direction from the “back side” to the “front side” is “front”, and the direction from the “front side” to the “back side” is “back”.

  Further, when the refrigerator 1 is viewed from the “front” side, the right side surface is referred to as a “right side surface” and the left side surface is referred to as a “left side surface”. The direction from the “left side” to the “right side” is defined as “right direction”, and the direction from the “right side” to the “left side” is defined as “left direction”.

  In the refrigerator 1, the direction toward the indoor floor surface FL is defined as “downward”, and the direction away from the floor surface FL is defined as “upward”.

<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 drawing of the refrigerator of 1st Embodiment. The refrigerator 1 is installed on the indoor floor surface FL, and is insulated with a foam insulation material 12 such as urethane foam between an outer box 10 formed of a coated steel plate and an inner box 11 formed of a resin molded product. A box 7 is provided. A refrigerator compartment 2 (storage compartment) is formed in the upper part of the refrigerator 1 by the heat insulating box 7. The refrigerator compartment 2 stores stored food such as food in a refrigerator.

  Below the refrigerating room 2, an ice making room 5 (storage room) and a freezing room 4 (storage room) arranged side by side are arranged via a partition wall 11a filled with a heat insulating material. A freezing room 3 (storage room) is arranged below the freezing room 4 and the ice making room 5 via a partition 50. The freezer compartments 3, 4 and the ice making chamber 5 communicate with each other through the rear of the partition 50, and the volume of the freezer compartment 4 is smaller than the volume of the freezer compartment 3. The ice making room 5 stores ice made by an automatic ice making device (not shown), and the freezing rooms 3 and 4 store stored foods and the like in a frozen state.

  Below the freezer compartment 3, a vegetable compartment 6 is arranged 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 refrigerator compartment 2, and preserves vegetables etc. refrigerated. The front surface 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 refrigerating compartment 2 via a communication passage 26 (see FIGS. 4 and 6). A return port 30 c is provided on the back of the vegetable compartment 6.

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

  The opening surface OF on the front surface 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). Opening surfaces OF on the front surfaces of the freezer compartments 3 and 4 are opened and closed by drawer-type doors 3a and 4a that slide in front and rear integrally with the storage cases 3b and 4b, respectively. A storage case 3c is placed on the storage case 3b.

  A panel-like vacuum heat insulating material 14 is attached to the inner surface of the back plate 10a of the outer box 10 with a hot-melt adhesive or a double-sided adhesive tape. The vacuum heat insulating material 14 encloses a core material (not shown) such as glass fiber in a bag-like outer covering material 14a. The vacuum heat insulating material 14 is depressurized by vacuuming the inside of the jacket material 14a, and the end portion of the jacket material 14a is tightly sealed. The jacket material 14a is made of a laminated film including an aluminum vapor deposition film and has a gas barrier property. 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 room 6. The bottom and back surfaces of the machine room 19 are covered with a bottom plate 19a and a back cover 19b, respectively. A compressor 20 that operates the refrigeration cycle is disposed in the machine room 19. A cooler 21 is connected to the compressor 20.

  A back panel 35 of a resin molded product such as ABS resin is disposed on the back of the freezing chambers 3 and 4 and the ice making chamber 5, and a cold air passage 30 is formed between the back panel 35 and the back of the inner box 11. The cold air passage 30 includes 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 part 31b is arranged behind the front part 31a via the cover part 31c, and the cooler 21 that generates cool air is arranged in the rear part 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 sending out cool air is disposed in the through hole 31d. The rear part 31b and the front part 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. 5 is a cross-sectional view taken along the line AA in 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 cylindrical guide portions 32 are formed to extend forward from the front portion 31a of the main passage 31 and guide the cool air forward. In this embodiment, the cross section parallel to the opening surface OF (see FIG. 2) of the guide portion 32 is formed in a substantially rectangular shape. The cross section of the guide portion 32 parallel to the opening surface OF may be a circle, an ellipse, or a polygon that is a pentagon or more.

  In the present embodiment, four guide portions 32 are provided. The four guide portions 32 are arranged at the right end portion of the upper end portion of the rear panel 35, the left end portion of the upper end portion, the right end portion of the central portion in the vertical direction, and the substantially central portion, respectively. It is referred to as a guide unit 32 on the right side and the lower left side. The upper right and upper left guides 32 face the freezer compartment 4 and the ice making chamber 5, respectively. The lower right part and the lower left guide part 32 face the freezer compartment 3 and are arranged at substantially the same height as the storage case 3c.

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

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

  7 and 8 are an enlarged perspective view and an enlarged plan sectional view in which the lower right guide part 32 is enlarged. Since the guide portions 32 other than the lower right 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 includes 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 upper right and upper left outlets 33 face the freezer compartment 4 and the ice making compartment 5, respectively. In FIG. 4, the lower right and lower left outlets 33 face the freezer compartment 3 and are arranged at substantially the same height as the storage case 3c (see FIG. 2).

  A shielding portion 32 c is provided at the front end portion of the guide portion 32. The shielding part 32c extends in the facing direction F from the front end of the inner surface of the first peripheral wall 32a toward the second peripheral wall 32b to form the peripheral edge of the discharge port 33. Specifically, the shielding portion 32c forms one end side (right end side) in the facing direction F of the discharge port 33 when viewed from the front side. Further, the shielding part 32 c is arranged in parallel to the facing direction F. In the present embodiment, the discharge 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 facing direction F between the discharge port 33 and the first peripheral wall 32a is larger than the distance in the facing direction F between the discharge port 33 and the second peripheral wall 32b (0 in the present embodiment).

  As shown in FIG. 3, the right side wall and the left side wall of the upper right part and the lower right part of the guide part 32 are formed by a first peripheral wall 32a and a second peripheral wall 32b, respectively. The right side wall and the left side wall of the upper left part and the lower left part of the guide part 32 are formed by a second peripheral wall 32b and a first peripheral wall 32a, respectively. Thereby, the 1st surrounding wall 32a is distribute | arranged to the position near the side wall 3s (not shown) of the freezer compartment 3 rather than the 2nd surrounding wall 32b.

  The discharge port 33 is divided into a plurality of openings 33b by lattice-like ribs 33a and 33c. In the present embodiment, the discharge port 33 is divided into four openings 33b by one rib 33a that extends vertically and one rib 33c that intersects the rib 33a and extends left and right. A plurality of ribs 33a and 33c may be provided. Further, one or both of the rib 33a and the rib 33c may be omitted.

  In the present embodiment, the peripheral walls of the four guide portions 32 are formed to extend in the same direction. Further, as shown in FIGS. 7 and 8, the ribs 33a and 33c that divide the discharge port 33 do not have inclined surfaces for bending the direction of the 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 a function of a wind direction deflecting plate that bends the direction of the cold air in a desired direction.

  FIG. 9 is a plan sectional view showing a state of the guide portion 32 during molding. The mold 90 of the guide portion 32 includes a block 91 and a block 92 that moves in the vertical direction in the figure with respect to the block 91. On the lower surface of the block 92 in the drawing, a recess 92a extending in a direction perpendicular to the paper surface and a recess 92b (not shown) extending in the left-right direction in the drawing are provided. In the figure, an arrow R indicates the direction in which the block 92 is removed.

  The block 91 forms the outer surface of the first peripheral wall 32a, the front surface, the outer surface of the second peripheral wall 32b, the front surface, 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 back surface, left side surface, both side surfaces of the rib 33a, the back surface, the upper surface, the lower surface, and the back surface of the rib 33c. The recess 92a forms both side surfaces and the back surface of the rib 33a, and the recess 92b forms the top surface, the bottom surface, and the back surface of the rib 33c.

  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 deflecting plate that bends the direction of cold air in a desired direction. For this reason, it is not necessary to incline the surrounding wall of the guide part 32 and the ribs 33a and 33c more than a predetermined draft with respect to the drawing direction (arrow R) of the block 92. Further, it is not necessary to ensure a long length in the front-rear direction of the ribs 33a and 33c in order for the ribs 33a and 33c to function as a wind direction deflecting plate. Therefore, it is not necessary to provide a large unevenness or an inclined surface with a large inclination angle on the mating surface MF between the block 91 and the block 92 for forming the ribs 33a and 33c, and the mating surface MF is substantially perpendicular to the drawing direction. It is formed with small irregularities on the plane. Therefore, the mold 90 can be easily manufactured. Further, the guide portion 32 can be easily formed integrally with the back panel 35 by the mold 90.

  As shown in FIG. 2, the cold air passage 40 is connected to the upper portion 31 a of the cold air passage 30 via the damper 16. The cold air passage 40 is formed to extend vertically along the inner surface (rear surface) of the inner box 11 of the refrigerator compartment 2 and has a plurality of discharge ports 41 facing the refrigerator compartment 2. Moreover, the return path 70 which connects the vegetable compartment 6 and the lower part of the cooler 21 is formed. The cold air flowing through the vegetable compartment 6 returns to the lower side of the cooler 21 through the return passage 70.

  In the refrigerator 1 having the above configuration, when the refrigeration 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 is exchanged with the cooler 21 by driving the blower 15. Thereby, cold air is generated. The generated cold air flows into the front part 31a through the through hole 31d by driving the blower 15. A part of the cold air flowing into the front part 31 a flows through the guide part 32 and is discharged to the freezer compartments 3 and 4 and the ice making room 5 through the discharge port 33. A part of the cold air flowing through the front part 31 a is discharged to the freezer compartment 3 through the discharge port 34. The cold air discharged from the discharge port 33 circulates in the freezer compartments 3 and 4 and the ice making chamber 5, and the cold air discharged from the discharge port 34 flows in the freezer chamber 3 and passes through the return port 30 b to cool the cooler 21. Return to. Thereby, the freezing rooms 3 and 4 and the ice making room 5 are cooled.

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

  The guide portion 32 is provided with a shielding portion 32 c that extends in the facing direction F from the front end of the first peripheral wall 32 a and forms the periphery of the discharge port 33. That is, the shielding part 32c forms one end side (right end side) in the facing direction F of the discharge port 33 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. And hit the cold air flow along the side from the shielding portion 32c side. At this time, the inner surface of the second peripheral wall 32 b is in contact with the peripheral edge of the discharge port 33. 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. For this reason, the cold airflow 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 cold airflow that merges and is discharged from the discharge port 33 is bent with respect to the discharge port 33 in the direction opposite to the shielding portion 32c. 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 first peripheral wall 32a side.

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

  The cold air flowing out from the outlet of the refrigerator compartment 2 flows through the connection path 26 and flows into the vegetable compartment 6 through the inlet (not shown). The cold air flowing into the vegetable compartment 6 circulates in the vegetable compartment 6 and returns to the cooler 21 through the return port 30c. Thereby, the vegetable compartment 6 is cooled.

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

  Thereby, 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 and merges with the cold airflow along the inner surface of the second peripheral wall 32b from the shielding portion 32c side. For this reason, the cold airflow that merges and is discharged from the discharge port 33 is bent with respect to the discharge port 33 in the direction opposite to the shielding portion 32 c. Therefore, the refrigerator 1 can discharge cold air in a desired direction with a simple configuration.

  Further, the shielding part 32 c is arranged in parallel to the facing direction F. Thereby, the distribution direction of the cold airflow along the second peripheral wall 32b and the distribution direction of the cold airflow along the shielding portion 32c are substantially orthogonal to each other. Therefore, the cold airflow discharged from the discharge port 33 can be easily bent with respect to the discharge port 33 in the direction opposite to the shielding portion 32c.

  Further, the discharge port 33 is formed in contact with the second peripheral wall 32b. Thereby, the cold air current 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 airflow discharged from the discharge port 33 can be bent more easily with respect to the discharge port 33 in the direction opposite to the shielding portion 32c.

  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 deflecting plate that bends the direction of cold air in a desired direction. For this reason, it is not necessary to incline the surrounding wall of the guide part 32 and the ribs 33a and 33c more than a predetermined draft with respect to the die 90 drawing direction (arrow R in FIG. 9). And the cold part which distribute | circulated the guide part 32 is discharged from the discharge port 33 by providing the shielding part 32c which extends in the opposing direction F from the front end of the 1st surrounding wall 32a of the guide part 32, and forms the periphery of the discharge port 33. When discharging, the discharge direction can be bent. That is, since the discharge direction of the cold air can be controlled by the arrangement of the shielding portion 32c that forms the periphery of the discharge port 33, the guide portion 32 in which an arbitrary discharge direction is set is integrated with the back 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 part 32 are formed by a first peripheral wall 32a and a second peripheral wall 32b, respectively. The right side wall and the 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 1st surrounding wall 32a is distribute | arranged to the position near the side wall 3s of the freezer compartment 3 rather than the 2nd surrounding wall 32b. Thereby, the cool air circulating along the side wall 3s of the freezer compartment 3 can be reduced. Therefore, it becomes difficult for cold heat to be released outside the warehouse via the side wall 3s, and the cooling efficiency of the refrigerator 1 can be improved.

  Further, 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 (the other guide portion 32) has a right side wall formed by the first peripheral wall 32a. Formed. Thereby, the central part of the left-right direction of the freezer compartment 3 can be concentrated and cooled with 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) is formed with the left wall by the first peripheral wall 32a, and the lower left guide portion 32 (other guide portions 32) is the first peripheral wall 32a. A right side wall may be formed. In this case, the left part and the right part of the freezer compartment 3 can be concentrated and cooled. Thus, even when the plurality of guide portions 32 are provided on one back panel 35 and the cooling air discharge directions are made different from each other by the shielding portion 32c, the peripheral walls and the ribs 33a and 33c of each guide portion 32 are provided. There is no need to use different inclined surfaces according to the discharge direction of the cold air. That is, a plurality of guide portions 32 having various cold air discharge directions can be integrally formed on the back panel 35 by the mold 90 having a predetermined drawing direction indicated by an arrow R in FIG. Cost can be reduced.

  The discharge port 33 is divided into a plurality of openings 33b by lattice-like ribs 33a and 33c. Thereby, the cold airflow discharged from the discharge port 33 can be easily rectified, and the cold airflow can be discharged smoothly 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 surface OF. Thereby, when the guide portion 32 is molded, the mating surface MF of the block 91 and the block 92 of the mold 90 is formed in a plane substantially perpendicular to the drawing direction. Therefore, the metal mold | die 90 can be produced easily and the manufacturing cost of the refrigerator 1 can be reduced.

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

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

  In the present embodiment, the ribs 33c extending left and right 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 disposed behind the front end of the right side wall (first peripheral wall 32a). Thereby, the discharge port 33 of the guide part 32 opens facing 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 the same in the front-rear direction, and a through hole or a notch may be provided near the front end of the second peripheral wall 32b of the guide portion 32.

  In the refrigerator 1 having the above configuration, when the blower 15 is driven, the cold air flow discharged from the discharge port 33 is bent in the direction opposite to the shielding portion 32c with respect to the discharge port 33, as in the first embodiment. At this time, the discharge port 33 of the guide part 32 is opened facing the side of the second peripheral wall 32b. Thereby, the cold air | gas which distribute | circulated the inside of the guide part 32 can be easily discharged with respect to the discharge port 33 by the direction opposite to the shielding part 32c.

  In this embodiment, the same effect as that of the first embodiment can be obtained. Further, the discharge port 33 opens to the side of the second peripheral wall 32b. Thereby, the cold air | gas which distribute | circulated the inside of the guide part 32 can be easily discharged with respect to the discharge port 33 by the direction opposite to the shielding part 32c.

<Third Embodiment>
Next, a third embodiment of the present invention will be described. 12 and 13 are an enlarged perspective view and an enlarged plan cross-sectional view in which the guide portion 32 of the refrigerator 1 of the third embodiment is enlarged. For convenience of explanation, the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS. In 3rd Embodiment, the structure of the discharge outlet 33 of the guide part 32 differs from 1st Embodiment. Other parts are the same as those in the first embodiment.

  In the present embodiment, the ribs 33a and 33c are omitted, and the discharge port 33 is formed by a single opening 33b. Further, a shielding part similar to the shielding part 32 c is provided at the front end of the second peripheral wall 32 b of the guide part 32. At this time, the distance D1 in the facing direction F between the discharge port 33 and the first peripheral wall 32a is larger than the distance D2 in the facing direction F between the discharge port 33 and the second peripheral wall 32b. In the first embodiment, the distance D2 is 0, but in this embodiment, the distance D2 is larger than 0.

  In the refrigerator 1 having the above configuration, when the blower 15 is driven, the cold air flow discharged from the discharge port 33 is bent in the direction opposite to the shielding portion 32c with respect to the discharge port 33, as in the first embodiment. At this time, the distance D1 in the facing direction F between the discharge port 33 and the first peripheral wall 32a is larger than the distance D2 in the facing direction F between the discharge port 33 and the second peripheral wall 32b. As a result, the amount of cold air that strikes the cold airflow in the vicinity of the downstream side of the discharge port 33 from the side is larger from the shielding portion 32c side of the first peripheral wall 32a than from the second peripheral wall 32b side. For this reason, the cold air current discharged from the discharge port 33 is bent in the direction opposite to the shielding portion 32 c 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 first peripheral wall 32a side.

  In this embodiment, the same effect as that of the first embodiment can be obtained. 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. Note that one or both of the ribs 33a and 33c may be provided as in the first embodiment without omitting the ribs 33a and 33c.

  The distance D1 in the facing direction F between the discharge port 33 and the first peripheral wall 32a is larger than the distance D2 in the facing direction F between the discharge port 33 and the second peripheral wall 32b.

  As a result, the amount of cold air that strikes the cold airflow in the vicinity of the downstream side of the discharge port 33 from the side is greater from the shielding portion 32c side of the first peripheral wall 32a than from the second peripheral wall 32b side. For this reason, even when a shielding part similar to the shielding part 32c is provided at the front end of the second peripheral wall 32b, the cold airflow discharged from the discharge port 33 is bent in the direction opposite to the shielding part 32c with respect to the discharge port 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 a guide part similar to the guide part 32.

  Moreover, in 1st Embodiment-3rd Embodiment, the upper wall or lower wall of the guide part 32 may be formed of the 1st surrounding wall 32a. Thereby, the cold air current discharged from the discharge port 33 can be bent downward or upward.

  In addition, the guide portions 32 of the first to third embodiments may be provided in appropriate combination 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 the same as the guide portion 32 of the second embodiment. You may form by a guide part.

  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. Forming the guide portion 32 so as to protrude forward from the front surface of the back panel 35 is desirable because it can prevent the flow of cool air in the main passage 31 from being disturbed by the first peripheral wall 32a and the second peripheral wall 32b of the guide portion 32.

  According to this invention, it can utilize for the refrigerator which provided the cold air | gas channel | path in the back surface of the storage room.

1 Refrigerator 2 Cold room (storage room)
2a, 3a, 4a, 5a, 6a Door 3, 4 Freezer room (storage room)
3b, 3c, 4b, 5b, 6b Storage case 3s Side wall 5 Ice making room (storage room)
6 Vegetable room 7 Heat insulation box 10 Outer box 10a Back plate 11 Inner box 11a, 11b Partition wall 12 Foam insulation 14 Vacuum insulation 15 Blower 16 Damper 20 Compressor 21 Cooler 30, 40 Cold air passage 30b, 30c Return port 31 Main passage 31a Front part 31b Rear part 31c Cover part 31d Through hole 32 Guide part 32a First peripheral wall 32b Second peripheral wall 32c Shielding part 33, 34, 41 Discharge port 33a, 33c Rib 33b Opening part 33s Side wall 35 Rear panel 50 Partition part 60 Shelf 70 Return path F Opposite direction FL Floor surface OF Opening surface N Normal line S Arrow

Claims (7)

In a refrigerator comprising a storage room having an opening surface on the front surface for storing stored items in a cold state, and a cold air passage disposed on the back surface of the storage room,
The cold air passage has a guide part that guides the cold air forward, and a discharge port that opens at least on the front surface of the guide part;
Providing a shielding part that extends from the front end of the first peripheral wall of the guide part toward the second peripheral wall facing the first peripheral wall to form the periphery of the discharge port;
The refrigerator, wherein a distance in the facing direction between the discharge port and the first peripheral wall is larger than a distance in the facing direction between the discharge port and the second peripheral wall.   The refrigerator according to claim 1, wherein the shielding part is arranged in parallel to the facing direction.   The refrigerator according to claim 1 or 2, wherein the discharge port is formed in contact with the second peripheral wall.   The refrigerator according to claim 3, wherein the discharge port is opened facing the side of the second peripheral wall. Comprising a plurality of the guide portions;
One guide portion is formed with a left side wall by the first peripheral wall;
5. The refrigerator according to claim 1, wherein the other guide portion has a right side wall formed by the first peripheral wall.   The refrigerator according to claim 5, wherein the first peripheral wall is disposed closer to the side wall of the storage chamber than the second peripheral wall.   The refrigerator according to any one of claims 1 to 6, wherein the discharge port is divided into a plurality of openings by lattice-shaped ribs.

Images