JP7106205B2 - cold storage - Google Patents

Description

The technology disclosed herein relates to cold storage.

2. Description of the Related Art Conventionally, in a cold storage such as a refrigerator, a cooler chamber containing a cooler and a storage chamber for storing foodstuffs and the like are separated by an internal duct (see, for example, Patent Document 1).

JP 2012-137260 A

In Patent Document 1, the internal duct that separates the cooler chamber and the storage chamber is composed of two parts, that is, a suction duct and a blowout duct. The suction duct is located on the lower side of the storage room, and is made of metal because it may come into contact with the food and the shelves that support the food, and strength is required. The blow-out duct is located on the upper side of the storage chamber, is less likely to come into contact with the duct, and is made of resin because it does not require much strength. As described above, since the upper part and the lower part of the internal duct are different in terms of strength, they are made up of separate parts made of different materials. However, if the duct is composed of two parts, the cost increases, so there is room for improvement.

This specification, which was created in view of the above circumstances, discloses a technique for reducing costs by forming the first duct portion and the second duct portion into a single component made of a resin material.

The cooling storage disclosed in this specification includes a cooling storage main body, an internal duct that partitions the cooling storage main body into a storage chamber for storing objects to be cooled, and a cooler chamber for accommodating a cooler, and the cooling a stay for attaching a support member for supporting an object, wherein the internal duct includes a first duct portion having a suction hole for sucking air from the storage chamber into the cooler chamber; a second duct portion located either above or below the duct portion and having a blowout hole for blowing air from the cooler chamber to the storage chamber; and a pair of mounting bases for mounting the .

In the refrigerator/freezer described above, the first duct for suction and the second duct for blowout are integrally made of resin. and reduce costs. In addition, since the duct main body, which integrates the first duct portion and the second duct portion, is a large-sized part made of resin, it is weak in strength and may be deformed. In this configuration, since mounting bases for mounting the stays are provided on both sides of the duct body, the strength of the duct body can be ensured even if the two duct sections are integrated to increase the size. As described above, it is possible to prevent the internal duct from being damaged when it comes into contact with foodstuffs or shelf boards.

Further, when the stay is fixed to the mounting base, the strength of the mounting base is increased, so that the strength of the internal duct can be further secured. In addition, since the stay also functions as a cover that protects the mounting base, damage to the mounting base can be suppressed even if foodstuffs or shelf boards (supporting members) come into contact with the mounting base.

As one embodiment of the cooling storage, it is preferable to have the following configuration.
The stays are positioned on both sides of the first duct portion in the width direction of the in-compartment duct, and the in-compartment 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 have a convex shape. With this configuration, it is possible to increase the strength of the first duct portion located between the stays to which the load of a heavy object such as food is applied.

It is preferable that the surface of the stay attached to the mounting base protrudes from the surface of the first duct portion. With this configuration, it is possible to prevent the shelf from interfering with the first duct portion when the shelf (supporting member) is attached.

It is preferable that the mounting base has a receiving portion on which the lower surface of the stay is placed at the lower end portion, and that the lower end surface of the receiving portion abuts the bottom wall of the cooling body. In this configuration, the load of heavy objects such as foodstuffs placed on the shelves is transmitted to the bottom wall of the refrigerator main body through the stays and mounting bases. By adopting a structure in which the load of a heavy object is transmitted to the bottom wall of the refrigerator main body, it is possible to alleviate the concentration of the load on the stay fixing portion of the mount. Therefore, it is possible to suppress damage to the stay fixing portion of the mount.

It is preferable that the first duct portion has a first rib contacting the wall surface on the rear surface facing the wall surface of the cooling chamber main body. By abutting the first rib against the wall surface, when the internal duct is pushed, it becomes difficult to bend, so the strength of the internal duct can be increased.

A cooling fan for blowing out cold air to the storage chamber is fixed to the cooler chamber by a bracket and attached to the second duct portion. Preferably, it has an abutting second rib. By abutting the second rib against the bracket, when the second duct portion is pushed, it becomes difficult to bend, so the strength of the second duct portion can be increased.

A heater for defrosting the cooler is preferably attached to the bracket. With this configuration, when defrosting the cooler with the heater, the inside duct can be warmed via the bracket and the second rib, so the inside duct is defrosted together with the defrosting of the cooler. can do

It is preferable that the stay is 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 main body as a single part made of a resin material.

Front view of the refrigerator according to Embodiment 1 Perspective view of a refrigerator cut vertically Perspective view of a horizontally cut refrigerator vertical cross section of refrigerator side view of refrigerator View of the internal duct from the storage side Perspective view of internal duct Front view of internal duct Side view of internal duct Horizontal sectional view around the duct in the refrigerator Rear view of chamber duct AA line sectional view of FIG. Enlarged view of the lower part of the internal duct Enlarged view of part of Fig. 6 BB line 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. 1 to 16. FIG. In the following description, the horizontal direction of the refrigerator 1 is the X direction, and the vertical direction is the Y direction. Also, the front-rear direction (depth direction) of the refrigerator 1 is defined as the Z direction. Moreover, let the installation surface side of the door 11 be the front side.

(1) Overall Configuration of Refrigerator 1 Refrigerator 1 is mainly used for commercial purposes. As shown in FIGS. 1 to 4, the refrigerator 1 includes a cooler main body 10 having an opening on the front side, double-opening heat insulating doors 11 (11A and 11B) for opening and closing the opening of the cooler main body 10, an internal duct 100, It has a stay 200 and a machine room 12 arranged on the left side of the refrigerator main body 10 .

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, as shown in FIGS. Each of the walls 13 to 17 constituting the cooler body 10 is filled with a heat insulating material (foaming agent), and the cooler body 10 constitutes a heat insulating box.

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

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

The internal duct 100 has a blowout hole 145 at its upper end facing the cooler chamber 21 and a suction hole 125 at its lower part facing the suction passage 25 . There is a gap between the lower end (lower end of the second duct portion) 121B of the duct body 110 and the bottom wall 13, and the gap also serves as a suction hole. When the cooling fan 33 is driven, as indicated by the dashed-dotted arrow in FIG. sucked into On the other hand, in the cooler compartment 21 , the air is cooled by the evaporator 30 , and the cooled air is blown out from the blowout holes 145 of the internal duct 100 into the storage compartment 50 . Thereby, circulation of cold air occurs, and the inside of the storage chamber 50 can be cooled.

The machine room 12 accommodates components such as a compressor 31, a condenser 32 and a decompressor that constitute a refrigerating circuit, a control section, a power supply section, and the like. An operation section 12A is provided on the front surface of the machine room 12. As shown in FIG. The user can set the target temperature in the refrigerator by operating the operation unit 12A.

(2) Structure 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 main body 10 with screws N1. Specifically, flanges 103 protruding outward are provided on both sides of the internal duct 100 in the width direction (Z direction). The internal duct 100 is fixed to the wall surface of the left side wall 14 by fixing three points, the upper portion of the flange 103, the recess 170, and the lower portion of the flange 103, with screws N1. By setting the fixing point P by the screw N1 not only on the flange 103 but also on the recess 170, the three fixing points P1 to P3 for fixing the internal duct 100 are arranged in a zigzag pattern instead of straight lines in the vertical direction. becomes. By staggering the fixing points P1 to P3 of the internal duct 100, the internal duct 100 can be firmly fixed to the wall surface, so that the internal duct 100 can be strengthened. H1 to H3 shown in FIG. 8 are screw holes for fixing the internal duct 100. As shown in FIG.

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

The first duct portion 121 has a flat plate shape and occupies substantially the lower half of the internal duct 100 . The first duct portion 121 has a suction hole 125 for drawing air from the storage chamber 50 into the suction passage 25 . A gap having a predetermined width formed between the left side wall 14 of the refrigerator main body 10 and the first duct portion 121 is used as a suction passage 25 (see FIGS. 4 and 10).

The suction holes 125 are provided in three rows in the width direction (Z direction). Two protrusions 127 are arranged 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 food and the suction hole 125 when the food is placed on the shelf plate (corresponding to the “support member” of the present invention) 230 so as to close the suction hole 125. By doing so, it is possible to prevent 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 rear surface facing the left side wall 14 of the cooling chamber 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, the internal duct 100 is hard to bend when pushed from the inside of the refrigerator, so that the strength of the internal duct 100 can be increased. It should be noted that the first rib 123 is formed over the entire first duct portion 121 in the vertical direction (Y direction), like the ridge 127 .

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

The intermediate portion 131 is positioned between the first duct portion 121 and the second duct portion 141 in the vertical direction (Y direction). As shown in FIGS. 2 and 4, the intermediate portion 131 curves toward the cooler chamber 21 and has a first inclined portion 131A, a flat portion 131B and a second inclined portion 131C. An evaporator 30 and a cooling fan 33 are arranged in the cooler chamber 21 . A cooling fan 33 is located in front of the evaporator 30 (on the right side in FIG. 4) and fixed by a bracket 37 . The bracket 37 has a first wall portion 37A to which the cooling fan 33 is fixed. The upper back surface of flat portion 131B of intermediate portion 131 abuts first wall portion 37A of bracket 37 to which cooling fan 33 is fixed. The first inclined portion 131A of the intermediate portion 131 is located below the flat portion 131B and forms part of the cool air suction path 25 . The second inclined portion 131C is located above the flat portion 131B and constitutes part of the cold air blowing space (the space in front of the fan) 35 . An intermediate portion 131 of the internal duct 100 separates the cold air suction path 25 and the blowing space 35 .

As shown in FIG. 8 , the pair of recesses 170 are located on both sides of the first duct portion 121 in the width direction (Z direction) and are arranged between the mounting base 150 . By providing the concave portion 170, as shown in FIG. 12, unevenness is formed in the horizontal cross section, so that the mounting base 150 and the first duct portion 121 have a convex shape, and the strength is increased compared to a flat shape.

As shown in FIG. 8, the pair of mounts 150 are positioned on both sides of the duct body 110 in the width direction. The "width direction of the duct body" is the direction along the plate surface of the duct body 110 and orthogonal to the vertical direction (Y direction), that is, the Z direction.

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

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

As shown in FIG. 8, the stays 200 are positioned on both sides in the width direction (both sides in the Z direction) of the first duct portion 121 . The total 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 . An upper portion of the stay 200 protrudes above the first duct portion 121 , and a lower portion of the stay 200 protrudes below the first duct portion 121 .

As shown in FIG. 12, an inner rib 153 is provided inside the mounting base 150 so as to protrude inward from the top wall 151 . The inner rib 153 , like the first rib 123 , is configured to abut against the left side wall 14 . A receiving portion 155 is provided at the lower end of the mount 150 (see FIG. 13). The receiving portion 155 protrudes from the mounting base 150 to the inside of the storage. The receiving portion 155 has the same width (equal length in the Z direction) as the mounting base 150 . The upper surface of the receiving portion 155 is flat and serves as a receiving surface for receiving the lower end surface 201 of the stay 200 . As shown in FIG. 13, the lower end surface 201 of the stay 200 reaches the receiving portion 155 provided at the lower end of the mount 150 and abuts on 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 mount 150 . By adopting a structure that transmits the load of a heavy object such as food to the bottom wall 13 of the refrigerator main body 10, the stay fixing portion (where the screw N2 that fixes the stay 150 is tightened) 150A of the mounting base 150 Concentration of load can be alleviated. Therefore, damage to the stay fixing portion 150A of the mount 150 can be suppressed.

Further, as shown in FIG. 15, a surface 200A of the stay 200 attached to the mounting base 150 protrudes from a surface 121A of the first duct portion 121. As shown in FIG. Specifically, it protrudes toward the storage chamber 50 (upper side in FIG. 15). A dimension D shown in FIG. 15 indicates the amount of protrusion of the surface of the stay. By protruding the surface of the stay, it is possible to prevent the shelf board 230 from interfering with the first duct portion 121 when the shelf board 230 is attached in the storage room 50 .

Further, as shown in FIG. 16, plate-like second ribs 147 are provided on both sides of the second duct portion 141 in the width direction (Z direction). The second rib 147 is provided on the back side of the second duct portion 141 (the side facing the bracket 37 fixing 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 for fixing the cooling fan 33 and a second wall portion 37B facing the first wall portion 37A. The second wall portion 37B has an opening (not shown) so as not to block the evaporator 30 and the cooling fan 33 . The tip of the second rib 147 of the second duct portion 141 is in contact with the first wall portion 37A of the bracket 37 . By abutting the second rib 147 against the first wall portion 37A of the bracket 37, the in-fridge duct 100 is less likely to bend when pushed, so the strength of the in-fridge duct 100 can be increased.

A defrosting heater 38A for defrosting (defrosting) the evaporator 30 is attached to the first wall portion 37A of the bracket 37 . Specifically, the defrosting heater 38A is attached to the back side of the first wall portion 37A (the side facing the evaporator 30). The defrosting heater 38A is located below the cooling fan 33 and in front of the lower part of the evaporator 30. As shown in FIG. During the defrosting operation, the heat of the defrosting heater 38A warms the first wall portion 37A of the bracket 37, and the heat warms the internal duct 100 via the second ribs 147. By doing so, defrosting of the internal duct 100 can be performed together with defrosting of the evaporator 30 . A defrosting heater 38B shown in FIG. 16 is also for defrosting the evaporator 30. As shown in FIG.

(3) Effect of Embodiment Since the internal duct 100 has the first duct portion 121 for suction and the second duct portion 141 for blowout integrally made of resin, the suction and blowout ducts The cost can be reduced compared to the case where the part is made a separate part. Further, since the duct main body 110, which integrates the first duct portion 121 and the second duct portion 141, is a large-sized part made of resin, it is weak in strength and may be deformed. In this configuration, mounting bases 150 for mounting the stays 200 are provided on both sides of the duct body 110, so that the strength of the duct body 110 can be ensured even if the two duct parts 121 and 141 are integrated and enlarged. . As described above, it is possible to prevent the internal duct 100 from being damaged when it comes into contact with the foodstuff or the shelf board 180 .

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

In addition, since the first duct portion 121 is positioned between the stays 200 to which heavy objects such as foodstuffs placed on shelves are applied, it is preferable to increase the strength thereof. The internal duct 100 has a recessed portion 170 between the first duct portion 121 and the mounting base 150 .

By providing the concave portion 170, as shown in FIG. 12, unevenness is formed in the horizontal cross section, so that the mounting base 150 and the first duct portion 121 have a convex shape, and the strength of the first duct portion 121 can be increased. .

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

(1) In the above embodiment, a refrigerator is shown as an example of a cold storage, but the present technology may be applied to a freezer. It may also be applied to a freezer-refrigerator having a freezer and a refrigerator.

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

(3) In the above embodiment, an example was shown in which the first duct portion 121 was arranged on the lower side and the second duct portion 141 was arranged on the upper side. The vertical positional relationship between the first duct portion 121 and the second duct portion 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 refrigerator main body 10, it is preferable to arrange the second duct part 141 on the lower side and the first duct part 121 on the upper side.

(4) In the above embodiment, the configuration in which the concave portion 170 is provided between the first duct portion 121 and the mounting base 150 has been exemplified. The internal duct 100 may be configured without the concave portion 170 by providing a convex portion on the mounting surface of the cooling chamber main body 10 .

1... Refrigerator, 10... Cooler body, 12... Machine room, 21... Cooler room, 25... Suction passage, 30... Evaporator, 33... Cooling fan, 37... Bracket, 38A... Defrost heater, 50... Storage room, 100... Inner duct, 110... Duct main body, 121... First duct part, 123... Second 1 rib,
125... Suction hole, 141... Second duct portion, 145... Blowout hole, 147... Second rib, 150... Mounting base, 155... Receiving part, 170... Recess , 200...Stay

Claims (4)

a cold store,
a refrigerator body;
an internal duct that partitions the cooling chamber main body into a storage chamber for storing objects to be cooled and a cooler chamber for accommodating a cooler;
a stay for attaching a support member that supports the object to be cooled;
The internal duct is
a first duct portion having a suction hole for drawing air from the storage chamber to the cooler chamber;
a duct body including a second duct portion located either above or below the first duct portion and having a blowout hole for blowing air from the cooler chamber to the storage chamber;
A one-piece part made of a resin material, including a pair of mounting bases for mounting the stay, positioned on both sides in the width direction of the duct body,
The stays are positioned on both sides of the first duct portion in the width direction of the internal duct,
The internal duct is
having a concave portion between the first duct portion and the mounting base;
A cooling storehouse, wherein the first duct portion and the mount are convex. a cold store,
a refrigerator body;
an internal duct that partitions the cooling chamber main body into a storage chamber for storing objects to be cooled and a cooler chamber for accommodating a cooler;
a stay for attaching a support member that supports the object to be cooled;
The internal duct is
a first duct portion having a suction hole for drawing air from the storage chamber to the cooler chamber;
a duct body including a second duct portion located either above or below the first duct portion and having a blowout hole for blowing air from the cooler chamber to the storage chamber;
A one-piece part made of a resin material, including a pair of mounting bases for mounting the stay, positioned on both sides in the width direction of the duct body,
The first duct section is
A cooling storage which has a first rib which abuts on the wall surface of the cooling storage main body on the back surface facing the wall surface. a cold store,
a refrigerator body;
an internal duct that partitions the cooling chamber main body into a storage chamber for storing objects to be cooled and a cooler chamber for accommodating a cooler;
a stay for attaching a support member that supports the object to be cooled;
The internal duct is
a first duct portion having a suction hole for drawing air from the storage chamber to the cooler chamber;
a duct body including a second duct portion located either above or below the first duct portion and having a blowout hole for blowing air from the cooler chamber to the storage chamber;
A one-piece part made of a resin material, including a pair of mounting bases for mounting the stay, positioned on both sides in the width direction of the duct body,
A cooling fan for blowing cold air to the storage chamber is attached to the cooler chamber and fixed by a bracket,
The cooling storage, wherein the second duct portion has a second rib on a rear surface facing the bracket, the second rib coming into contact with the bracket. a cold store,
a refrigerator body;
an internal duct that partitions the cooling chamber main body into a storage chamber for storing objects to be cooled and a cooler chamber for accommodating a cooler;
a stay for attaching a support member that supports the object to be cooled;
The internal duct is
a first duct portion having a suction hole for drawing air from the storage chamber to the cooler chamber;
a duct body including a second duct portion located either above or below the first duct portion and having a blowout hole for blowing air from the cooler chamber to the storage chamber;
A one-piece part made of a resin material, including a pair of mounting bases for mounting the stay, positioned on both sides in the width direction of the duct body,
The cold storage, wherein the stay is made of metal.

Images