JP2019143888A - Cooling storage - Google Patents

Abstract

To reduce costs for an internal duct by integrating a first duct portion and a second duct portion by using a resin material.SOLUTION: A cooling storage 1 includes a cooling storage main body 10, an internal duct 100 for partitioning the cooling storage main body 10 into a storage chamber 50 for storing an object to be cooled and a cooler chamber 21 housing a cooler, and a stay 200 for mounting a supporting member for supporting the object to be cooled. The internal duct 100 includes a duct main body 110 including a first duct portion 121 having a suction hole 125 for sucking air from the storage chamber 50 to the cooler chamber 21, and a second duct portion 141 disposed above or below the first duct portion 121, and having a blowout hole 145 for blowing out the air from the cooler chamber 21 to the storage chamber 50, and a pair of mounting stands 150 positioned at both side in a width direction of the duct main body 110 for mounting the stay 200, and is a part of one component composed of a resin material.SELECTED DRAWING: Figure 7

Description

  The technology disclosed in this specification relates to a cold storage.

  2. Description of the Related Art Conventionally, a cooling storage such as a refrigerator partitions a cooler room containing a cooler and a storage room for storing foods and the like with an internal duct (see, for example, Patent Document 1).

JP 2012-137260 A

  In the said patent document 1, the internal duct which partitions off a cooler room and a store room is comprised from 2 components, ie, a suction duct, and a blowing duct. The suction duct is located on the lower side of the storage room, and may be in contact with the food and a shelf that supports the food, and is made of metal because strength is required. The blowout duct is made of resin because it is located on the upper side of the storage chamber, has little fear of contact, and does not require so much strength. As described above, since there is a difference in strength between the upper part and the lower part of the internal duct, it is composed of different parts made of different materials. However, if the duct is composed of two parts, the cost increases, so there is room for improvement.

  The present specification has been created in view of the above circumstances, and discloses a technique for reducing the cost by forming the first duct portion and the second duct portion into one part using a resin material.

  The cooling storage disclosed in the present specification includes a cooling body, a storage chamber that stores the cooling object, a cooling chamber that houses the cooling device, and an internal duct that partitions the cooling storage body. A stay for attaching a support member for supporting an object, wherein the internal duct has a first duct portion having a suction hole for sucking air from the storage chamber into the cooler chamber, and the first duct A duct body that is either above or below the duct portion and includes a second duct portion having a blowout hole for blowing air from the cooler chamber to the storage chamber; And a pair of mounting bases for mounting the base plate.

  In the above refrigerator / freezer, the first duct portion for suction and the second duct portion for blowing are integrally formed of resin, so that compared with the case where the duct portion is separate parts for suction and blowing Cost. Moreover, since the duct main body which integrated the 1st duct part and the 2nd duct part is resin-made large components, it becomes weak in intensity | strength and there exists a possibility of a deformation | transformation. In this configuration, since the mounting base for attaching the stay is provided on both sides of the duct main body, the strength of the duct main body can be ensured even if the two duct portions are integrated and enlarged. From the above, it is possible to suppress the internal duct from being damaged at the time of contact with the ingredients and the shelf board.

  In addition, when the stay is fixed to the mounting base, the mounting base increases in strength, so that the strength of the internal duct can be further secured. In addition, since the stay also functions as a cover for protecting the mounting base, it is possible to prevent the mounting base from being damaged even if foods, shelf boards (support members), or the like come into contact with each other.

The following configuration is preferable as an embodiment of the cooling storage.
The stay is located on both sides of the first duct portion in the width direction of the internal duct, and the internal duct has a recess between the first duct portion and the mounting base. It is preferable that the first duct portion and the mounting base are convex. With this configuration, it is possible to increase the strength of the first duct portion located between the stays where a heavy load such as food is applied.

  It is preferable that the surface of the stay attached to the mounting base protrudes more than the surface of the first duct portion. In this structure, when attaching a shelf board (support member), it can suppress that a shelf board interferes with a 1st duct part.

  It is preferable that the mounting base has a receiving portion on which a lower surface of the stay is placed at a lower end portion, and the lower end surface of the receiving portion abuts on a bottom wall of the cooling body. In this configuration, the load of a heavy object such as food placed on the shelf plate is transmitted to the bottom wall of the refrigerator main body via the stay and the mounting base. By using a structure that transmits the load of a heavy object to the bottom wall of the refrigerator main body, it is possible to reduce the concentration of the load on the stay fixing portion of the mounting base. Therefore, it is possible to prevent the stay fixing portion of the mounting base from being damaged.

  It is preferable that the first duct portion has a first rib that abuts against the wall surface on the back surface facing the wall surface of the refrigerator main body. By striking the first rib against the wall surface, it becomes difficult to bend when the internal duct is pushed, so that the internal duct can be strengthened.

  In the cooler chamber, a cooling fan for blowing cool air to the storage chamber is fixed and attached by a bracket, and the second duct portion is attached to the back surface facing the bracket with respect to the bracket. It is preferable to have the 2nd rib which contact | abuts. By abutting the second rib against the bracket, it becomes difficult to bend when the second duct portion is pushed, so that the strength of the second duct portion can be increased.

  It is preferable that a heater for defrosting the cooler is attached to the bracket. In this configuration, when the cooler is defrosted by the heater, the internal duct can be warmed via the bracket and the second rib, so that the internal duct is defrosted together with the defrost of the cooler. I can do it.

  The stay is preferably made of metal. By fixing the metal stay to the mounting base, the strength of the mounting base is increased, so that the strength of the internal duct can be further secured.

  According to the present invention, the cost can be reduced by integrating the duct body as a single part made of a resin material.

Front view of the refrigerator according to the first embodiment Perspective view of the refrigerator cut vertically Perspective view of the refrigerator cut horizontally Vertical sectional view of the refrigerator Side view of refrigerator View of the internal duct from the storage side Perspective view of internal duct Front view of duct inside the cabinet Side view of internal duct Horizontal cross section around the duct inside the cabinet Rear view of internal duct AA line sectional view of FIG. An enlarged view of the lower part of the internal duct An enlarged view of a part of FIG. BB sectional view of FIG. Perspective view of internal duct

<One Embodiment>
An embodiment in which the present invention is applied to a two-door horizontal refrigerator 1 will be described with reference to FIGS. In the following description, the left-right direction of the refrigerator 1 is the X direction, and the up-down direction is the Y direction. Moreover, let the front-back direction (depth direction) of the refrigerator 1 be a Z direction. The installation surface side of the door 11 is the front side.

(1) Overall configuration of refrigerator 1 The refrigerator 1 is mainly used for business purposes. As shown in FIGS. 1 to 4, the refrigerator 1 includes a refrigerator main body 10 having an opening on the front side, a double-spread type heat insulating door 11 (11 </ b> A, 11 </ b> B) that opens and closes the opening of the refrigerator main body 10, an internal duct 100, A machine room 12 is provided on the left side of the stay 200 and the refrigerator main body 10.

  As shown in FIGS. 2 and 3, the refrigerator main body 10 includes a bottom wall 13, a left side wall 14, a right side wall 15, a rear wall 16, and a top wall 17. Each wall 13-17 which comprises the refrigerator main body 10 is filled with the heat insulating material (foaming agent) inside, and the refrigerator main body 10 comprises the heat insulation box.

  The internal duct 100 is attached to the inside of the refrigerator main body 10 and partitions the internal space of the refrigerator main body 10 into a cooler chamber 21 and a storage chamber 50. In this embodiment, as shown in FIG. 4, an internal duct 100 is installed adjacent to the machine room 12, and the space on the machine room side (left side in FIG. 4) as viewed from the internal duct 100. Is the cooler chamber 21, and the space on the opposite side (right side in FIG. 4) is the storage chamber 50.

  The cooler chamber 21 is on the upper side of the refrigerator main body 10 and protrudes to the upper portion of the machine chamber 12. That is, the upper part of the left side wall 14 of the refrigerator main body 10 (excluding both ends in the Z direction) protrudes to the upper part of the machine room 12, and the internal space is the cooler room 21. The cooler chamber 21 accommodates an evaporator 30 that is a cooler and a cooling fan 33. A drain pan 34 is located below the cooler chamber 21.

  The internal duct 100 is provided with a blowout hole 145 at an upper end portion facing the cooler chamber 21 and a suction hole 125 at a lower portion facing the suction passage 25. Moreover, the lower end (lower end of the 2nd duct part) 121B of the duct main body 110 has a clearance gap between the bottom wall 13, and the clearance gap is also a suction hole. When the cooling fan 33 is driven, the air in the storage chamber 50 flows from the lower end 121B of the duct main body 110 and the suction hole 125 through the suction passage 25 as shown by a one-dot chain line arrow in FIG. Sucked into. On the other hand, in the cooler chamber 21, the air is cooled by the evaporator 30, and the cooled cold air blows out into the storage chamber 50 from the blowout holes 145 of the internal duct 100. Thereby, the circulation of cold air occurs, and the inside of the storage chamber 50 can be cooled.

  The machine room 12 accommodates components constituting a refrigeration circuit, such as a compressor 31, a condenser 32, and a decompressor, a control unit, a power supply unit, and the like. An operation unit 12 </ b> A is provided on the front surface of the machine room 12. The user can set the target temperature in the warehouse by operating the operation unit 12A.

(2) Configuration of Internal Duct 100 and Stay 200 As shown in FIG. 6, the internal duct 100 is fixed to the left side wall 14 of the cooling body 10 with screws N1. Specifically, flanges 103 that protrude outward are provided on both sides in the width direction (Z direction) of the internal duct 100. The internal duct 100 is fixed to the wall surface of the left side wall 14 by fixing three points of the upper portion of the flange 103, the concave portion 170, and the lower portion of the flange 103 with screws N1. Not only the flange 103 but also the recess 170 is set with a fixing point P by the screw N1, so that the three fixing points P1 to P3 for fixing the internal duct 100 are not arranged in a vertical direction but in a staggered arrangement. It becomes. By arranging the fixing points P1 to P3 of the internal duct 100 in a staggered arrangement, the internal duct 100 can be firmly fixed to the wall surface, so that the internal duct 100 can be strengthened. In addition, H1-H3 shown in FIG. 8 are screw holes for fixing the internal duct 100.

  As shown in FIGS. 7 and 8, the internal duct 100 includes a duct body 110 and a pair of mounting bases 150 and is a one-part part made of a resin material. The duct body 110 includes a first duct part 121, an intermediate part 131, a second duct part 141, and a pair of recesses 170.

  The 1st duct part 121 is flat form, and has occupied the lower half of the duct 100 in the warehouse. The first duct portion 121 has a suction hole 125 for sucking air from the storage chamber 50 into the suction passage 25. In addition, the clearance gap of the predetermined width formed between the left side wall 14 of the refrigerator main body 10 and the 1st duct part 121 is utilized as the suction passage 25 (refer FIG. 4, FIG. 10).

  The suction holes 125 are provided in three rows in the width direction (Z direction). Two protrusions 127 are disposed on the surface of the first duct portion 121 so as to partition the three rows of suction holes 125. The protrusion 127 secures a gap between the foodstuff and the suction hole 125 when the foodstuff is placed on the shelf plate (corresponding to the “support member” of the present invention) 230 so as to close the suction hole 125. This prevents the suction hole 125 from being blocked.

  As shown in FIGS. 10 and 11, the first duct portion 121 has a plurality of first ribs 123 on the back surface facing the left side wall 14 of the refrigerator main body 10. The plurality of first ribs 123 extend toward the left side wall 14 of the refrigerator main body 10, and their tips are in contact with the left side wall 14. By abutting the first rib 123 against the left side wall 14 of the refrigerator main body 10, it becomes difficult for the internal duct 100 to bend when the internal duct 100 is pushed out of the internal storage, so that the internal duct 100 can be strengthened. In addition, the 1st rib 123 is formed over the whole 1st duct part 121 by the up-down direction (Y direction) similarly to the protrusion 127. As shown in FIG.

  As shown in FIGS. 7 and 8, the second duct part 141 is provided in the upper part of the internal duct 100 and is located above the first duct part 121. The second duct part 141 is located facing the cooler chamber 21. The second duct part 141 has a cylindrical blow-out hole 145 for blowing air from the cooler room 21 to the storage room 50. A plurality of blowout holes 145 are provided along the width direction (Z direction) of the second duct part 141.

  The intermediate part 131 is located between the first duct part 121 and the second duct part 141 in the vertical direction (Y direction). As shown in FIGS. 2 and 4, the intermediate portion 131 is curved toward the cooler chamber 21, and includes a first inclined portion 131A, a flat portion 131B, and a second inclined portion 131C. An evaporator 30 and a cooling fan 33 are disposed in the cooler chamber 21. The cooling fan 33 is in front of the evaporator 30 (on the right side in FIG. 4) and is fixed by a bracket 37. The bracket 37 has a first wall portion 37 </ b> A that fixes the cooling fan 33. The upper surface of the back surface of the flat portion 131B of the intermediate portion 131 is in contact with the first wall portion 37A of the bracket 37 that fixes the cooling fan 33. The first inclined portion 131A of the intermediate portion 131 is below the flat portion 131B and constitutes a part of the cool air suction path 25. The second inclined portion 131C is located above the flat portion 131B and constitutes a part of the cool air blowing space (the space in front of the fan) 35. The intermediate part 131 of the internal duct 100 partitions the cold air suction path 25 and the blowing space 35.

  As shown in FIG. 8, the pair of concave portions 170 are disposed on both sides of the first duct portion 121 in the width direction (Z direction) and between the mounting base 150. By providing the recessed portion 170, as shown in FIG. 12, since the unevenness is formed in the horizontal section, the mounting base 150 and the first duct portion 121 have a convex shape, and the strength is increased as compared with the flat shape.

  As shown in FIG. 8, the pair of mounting bases 150 are located on both sides of the duct body 110 in the width direction. The “width direction of the duct main body” is a direction along the plate surface of the duct main body 110 and is a direction orthogonal to the vertical direction (Y direction), that is, the Z direction.

  The pair of mounting bases 150 are formed along the vertical direction (Y direction) with a constant width H. As shown in FIG. 8, the total length (vertical length) of the pair of mounts 150 is L1, and the total length (vertical length) of the duct body 110 is L2. The total length L1 of the pair of mounting bases 150 is longer than the total length L2 of the duct main body 110, and the lower portions of the pair of mounting bases 150 protrude downward from the duct main body 110.

  A stay 200 is attached to the pair of mounting bases 150 by screws N2. The stay 200 is made of metal and has a shape that is long in the vertical direction. The stay 200 is a member for attaching a shelf plate 230 that supports heavy objects such as food. The stay 200 is provided with a plurality of locking holes 210 for fixing the shelf plate 230 along the vertical direction. The stay 200 is also attached to the right side wall 15 and the rear wall 16 of the refrigerator main body 10, and has a structure that supports the shelf plate 230 using a plurality of stays 200.

  As shown in FIG. 8, the stay 200 is located on both sides in the width direction of the first duct portion 121 (both sides in the Z direction). The overall length (vertical length) of the stay 200 is L3, and the total length (vertical length) of the first duct portion 121 is L4. The overall length L3 of the stay 200 is longer than the overall length L4 of the first duct portion 121. The upper part of the stay 200 protrudes upward from the first duct part 121, and the lower part of the stay 200 protrudes downward from the first duct part 121.

  As shown in FIG. 12, an inner rib 153 is provided inside the mounting base 150 so as to protrude inward from the upper surface wall 151. The inner rib 153 is configured to abut against the left side wall 14 in the same manner as the first rib 123. Moreover, the receiving part 155 is provided in the lower end part of the mounting base 150 (refer FIG. 13). The receiving part 155 protrudes from the mounting base 150 to the inside of the warehouse. The receiving portion 155 has the same width as the mounting base 150 (the length in the Z direction is equal). The upper surface of the receiving portion 155 is flat and serves as a receiving surface that receives the lower end surface 201 of the stay 200. As shown in FIG. 13, the lower end surface 201 of the stay 200 reaches a receiving portion 155 provided at the lower end of the mounting base 150, and is in contact with the receiving portion 155.

  As shown in FIG. 14, the lower surface of the receiving portion 155 provided at the lower end of the mounting base 150 is in contact with the bottom wall 13 of the refrigerator main body 10.

  By abutting the lower end surface of the receiving portion 155 against the bottom wall 13, the load of the food placed on the shelf plate 230 is transmitted to the bottom wall 13 of the refrigerator main body 10 via the stay 200 and the mounting base 150. By using a structure that transmits a heavy load such as food to the bottom wall 13 of the refrigerator main body 10, the stay fixing portion 150 A of the mounting base 150 (where the screw N <b> 2 that fixes the stay 150 is tightened) 150 </ b> A, It can alleviate the concentration of load. Therefore, it is possible to suppress the stay fixing portion 150A of the mounting base 150 from being damaged.

  As shown in FIG. 15, the surface 200 </ b> A of the stay 200 attached to the mounting base 150 protrudes from the surface 121 </ b> A of the first duct part 121. Specifically, it protrudes to the storage chamber 50 side (upper side in FIG. 15). A dimension D shown in FIG. 15 indicates the protrusion amount of the stay surface. By projecting the stay surface, it is possible to prevent the shelf plate 230 from interfering with the first duct portion 121 when the shelf plate 230 is attached in the storage chamber 50.

  Further, as shown in FIG. 16, plate-like second ribs 147 are provided on both sides in the width direction (Z direction) of the second duct portion 141. The second rib 147 is provided on the back surface side of the second duct portion 141 (the surface side facing the bracket 37 that fixes the cooling fan 33). The second rib 147 extends toward the bracket 37 and partitions the side space of the cooling fan 33.

  As shown in FIG. 16, the bracket 37 has a first wall portion 37A that fixes the cooling fan 33, and a second wall portion 37B that faces the first wall portion 37A. The second wall portion 37 </ b> B has an opening (not shown) so as not to block the evaporator 30 and the cooling fan 33. The second rib 147 of the second duct portion 141 is in contact with the first wall portion 37 </ b> A of the bracket 37 at the tip. By abutting the second rib 147 against the first wall portion 37 </ b> A of the bracket 37, it becomes difficult to bend when the internal duct 100 is pushed, so that the internal duct 100 can be strengthened.

  A defrost heater 38 </ b> A for defrosting (defrosting) the evaporator 30 is attached to the first wall portion 37 </ b> A of the bracket 37. Specifically, the defrosting heater 38A is attached to the back surface side (the surface facing the evaporator 30) of the first wall portion 37A. The defrosting heater 38 </ b> A is located below the cooling fan 33 and in front of the lower part of the evaporator 30. During the defrosting operation, the heat of the defrosting heater 38 </ b> A warms the first wall portion 37 </ b> A of the bracket 37, and the heat warms the internal duct 100 via the second rib 147. By doing in this way, the defrosting of the internal duct 100 can be performed together with the defrosting of the evaporator 30. Note that the defrost heater 38B shown in FIG. 16 is also used for defrosting the evaporator 30.

(3) Effect of Embodiment The internal duct 100 is configured by integrally forming the first duct part 121 for suction and the second duct part 141 for blowing out with resin, so that the duct for suctioning and blowing out is ducted. The cost can be reduced compared to the case where the part is a separate part. Moreover, since the duct main body 110 which integrated the 1st duct part 121 and the 2nd duct part 141 is a resin-made large component, it becomes weak in intensity | strength and there exists a possibility of a deformation | transformation. In this configuration, since the mounting bases 150 for attaching the stay 200 are provided on both sides of the duct main body 110, the strength of the duct main body 110 can be ensured even if the two duct portions 121 and 141 are integrated and enlarged. . From the above, it is possible to prevent the internal duct 100 from being damaged at the time of contact with the foodstuff or the shelf board 180.

  Further, when the stay 200 is fixed to the mounting base 150, the mounting base 150 increases in strength, so that the strength of the internal duct 100 can be further ensured. In addition, since the stay 200 also functions as a cover that protects the mounting base 150, the mounting base 150 can be prevented from being damaged even when foodstuffs, the shelf board 180, and the like come into contact with each other. In particular, when the stay 200 is made of metal, a great effect can be obtained in terms of both ensuring the strength of the internal duct 100 and protecting the mounting base 150.

  Moreover, since the 1st duct part 121 is located between the stays 200 to which the load of heavy objects, such as a foodstuff mounted on the shelf board, is added, it is preferable to raise intensity | strength. The internal duct 100 has a recess 170 between the first duct portion 121 and the mounting base 150.

  By providing the concave portion 170, as shown in FIG. 12, since the concave and convex portions are formed in the horizontal cross section, the mounting base 150 and the first duct portion 121 are convex, and the strength of the first duct portion 121 can be increased. .

<Other embodiments>
The technology disclosed in the present specification is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope disclosed by the present specification.

  (1) Although the refrigerator is shown as an example of the cooling storage in the above embodiment, the present technology may be applied to the freezer. Moreover, you may apply to the refrigerator-freezer provided with the freezer and the refrigerator.

  (2) In the said embodiment, the example which attached the duct 100 to the left side wall 14 of the refrigerator main body 10 was shown. The installation location of the internal duct 100 is not limited to the left side wall 14. When the cooler chamber 21 is provided on the right side wall 15 or the rear side wall 16 of the cooler body 10, the right side wall 15 or the rear side wall is provided. 16 is installed.

  (3) In the said embodiment, the example which has arrange | positioned the 1st duct part 121 on the lower side and the 2nd duct part 141 on the upper side was shown. The positional relationship in the vertical direction of the first duct part 121 and the second duct part 141 may be changed according to the arrangement of the cooler chamber 21. That is, when the cooler chamber 21 is located in the lower part of the cooler body 10, the second duct part 141 may be disposed on the lower side and the first duct part 121 may be disposed on the upper side.

  (4) In the said embodiment, the structure which provided the recessed part 170 between the 1st duct part 121 and the mount 150 was illustrated. If the convex part is provided on the mounting surface of the cooling body main body 10, the internal duct 100 may be configured without the concave part 170.

DESCRIPTION OF SYMBOLS 1 ... Refrigerator, 10 ... Cooling body, 12 ... Machine room, 21 ... Cooler room, 25 ... Suction passage, 30 ... Evaporator, 33 ... Cooling fan, 37 ... Bracket, 38A ... Defrost heater, 50 ... Storage room, 100 ... Duct inside, 110 ... Duct body, 121 ... First duct part, 123 ... First 1 rib,
125 ... suction hole, 141 ... second duct part, 145 ... blowout hole, 147 ... second rib, 150 ... mounting base, 155 ... receiving part, 170 ... concave part , 200 ... Stay

Claims (8)

A cold storage,
The refrigerator body,
An in-compartment duct that divides the cooling body into a storage room for storing an object to be cooled, and a cooling room for housing a cooling unit;
A stay for attaching a support member that supports the object to be cooled; and
The inside duct is
A first duct portion having a suction hole for sucking air from the storage chamber into the cooler chamber;
A duct main body that is located either above or below the first duct portion, and includes a second duct portion having a blowout hole for blowing air from the cooler chamber to the storage chamber;
A cooling storage, which is a one-part part made of a resin material, including a pair of mounting bases that are located on both sides in the width direction of the duct body and to which the stay is attached. The cooling storage according to claim 1,
The stays are located on both sides of the first duct portion in the width direction of the internal duct,
The inside duct is
Having a recess between the first duct part and the mounting base;
A cooling storehouse in which the first duct part and the mounting base are convex. A cooling storehouse according to claim 2,
The surface of the stay attached to the mount is a cooling storage that protrudes from the surface of the first duct part. It is a cooling storehouse as described in any one of Claims 1-3,
The mounting base has a receiving part for placing the lower surface of the stay on the lower end part,
The cooling storage store | ware which the lower end surface of the said receiving part contact | abuts to the bottom face wall of the said refrigerator main body. It is a cooling storehouse as described in any one of Claims 1-4,
The first duct part is
The cooling storage which has the 1st rib contact | abutted with respect to the said wall surface in the back surface opposite to the wall surface of the said refrigerator main body. It is a cooling storehouse as described in any one of Claims 1-5,
In the cooler room, a cooling fan for blowing cold air to the storage room is fixed and attached by a bracket,
The said 2nd duct part is a cooling storehouse which has the 2nd rib contact | abutted with respect to the said bracket in the back surface facing the said bracket. The cooling storage according to claim 6,
A cooling storehouse in which a heater for defrosting the cooler is attached to the bracket. It is a cooling storehouse as described in any one of Claims 1-7,
The stay is made of metal, a cooling storage.

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