WO2018181835A1

WO2018181835A1 - Refrigerator

Info

Publication number: WO2018181835A1
Application number: PCT/JP2018/013497
Authority: WO
Inventors: 良太青木; 研二竹内; 俊光鶴賀
Original assignee: 三星電子株式会社
Priority date: 2017-03-30
Filing date: 2018-03-29
Publication date: 2018-10-04

Abstract

The refrigerator (10) is provided with: a box-shaped storage compartment (14); and a heat radiation member (23). The storage compartment (4) has a frame, one side of which is closed and the other side serves as an opened surface, the frame being composed of a wall member. The wall member includes a hollow structure composed of a plurality of plate members (21 and 22), and a foamed heat insulating material (25) filled in the hollow structure. The heat radiation member (23) is disposed in the wall member. In the wall member, there is a pressing member (24) for pressing the heat radiation member (23) against a plate member. The pressing member (24) is made of a material which presses the heat radiation member (23) under predetermined conditions.

Description

refrigerator

This disclosure relates to a refrigerator.

The refrigerator includes a box and a door for closing the opening. A storage room for storing food or the like is configured inside the box. The box may be divided into a plurality of storage rooms, for example, a refrigeration room and a freezing room, by a heat insulating partition plate. Examples of the door include a hinged door or a drawer type door.

In the vicinity of the opening that is blocked by the door, condensation due to cold air in the refrigerator tends to occur. As a countermeasure, a heat radiating member (for example, a refrigerant pipe for flowing a high-temperature refrigerant) is provided inside the wall of the box around the opening or the inside of the heat insulating partition plate.

In order to fix the heat dissipating member, for example, it is known that a flexible member is disposed behind the heat dissipating member and the heat dissipating member is pressed against the front plate (Patent Document 1).

JP 2015-34680 A

As described above, in the refrigerator in which the heat dissipating member is arranged around the opening, the effect of preventing dew condensation is not stable, and variation tends to occur. As a result, in order to stably prevent dew condensation, it is necessary to allow a high-temperature refrigerant to flow with sufficient margin, resulting in an increase in the amount of heat leakage into the storage chamber and an increase in power consumption.

In view of the above, the technology of the present disclosure provides a refrigerator that can more stably prevent condensation.

As described above, the inventors of the present application focused on the positional relationship between the wall of the box or the front plate of the heat insulating partition plate and the heat radiating member as the reason why the effect of preventing dew condensation occurs.

A refrigerator box is formed by filling a foaming heat insulating material between an outer box and an inner box each made of a thin plate. The heat dissipating member is disposed between the outer box and the inner box in the vicinity of the front plate around the opening. Here, in the process of filling the foamable heat insulating material, the foaming amount or the like is likely to vary, and due to the influence, the installation position of the heat dissipation member is likely to vary. Even if a flexible member is used as in Patent Document 1, the force for pressing the heat radiating member is insufficient, and the position of the heat radiating member also varies. Due to such variations, the effect of preventing condensation by the heat radiating member becomes unstable. Focusing on this point, the inventors of the present application have conceived of stably preventing condensation by stabilizing the installation position of the heat dissipating member.

The first refrigerator according to the present disclosure includes at least one box-shaped storage room and a heat radiating member. The storage chamber is configured as an opening surface that closes one of the frames made of wall members and the other can be closed by a door. A wall member contains the hollow structure which consists of a some board | plate material, and the foaming heat insulating material with which it filled in the said hollow structure. The heat radiating member is disposed in the wall member. In the wall member, a pressing member that presses the heat dissipation member against the plate member is provided. The pressing member is a material that takes a state in which the heat dissipation member is pressed against the plate material under a predetermined condition.

According to the refrigerator of the present disclosure, the heat radiating member is pressed to a desired position in the wall member of the storage chamber by setting the pressing member to a predetermined condition by the foam heat insulating material. Thereby, since the position of a heat radiating member is stabilized, dew condensation can be prevented more stably.

FIG. 1 is a diagram schematically illustrating an exemplary refrigerator according to an embodiment of the present disclosure. FIG. 2 is a diagram schematically showing a cross section taken along line II-II in FIG. FIG. 3 is a diagram illustrating a manufacturing process for obtaining the structure of FIG. FIG. 4 is a diagram schematically showing a cross section taken along line IV-IV in FIG. FIG. 5 is a diagram schematically showing another example of the cross section taken along line II-II in FIG. FIG. 6 is a diagram schematically showing still another example of the cross section taken along the line II-II in FIG. FIG. 7 shows the back side of the refrigerator of FIG. 1 and shows an example in which a heat dissipation member is provided on the back side. FIG. 8 is a schematic diagram illustrating a cord heater as an example of a heat dissipation member.

(First embodiment)
A refrigerator according to a first embodiment of the present disclosure will be described with reference to the drawings. FIG. 1 is a perspective view showing an exemplary refrigerator 10 of the present embodiment.

The refrigerator 10 includes a box 11 and a heat insulating partition plate 12 that partitions the box 11 into a plurality of storage chambers 14. The storage chamber 14 is for closing one side (the back side in FIG. 1) of the two openings that can be formed into a square frame made of wall members with the other wall, and the other side (the front side in FIG. 1) to put food in and out. It is comprised in the box shape as an opening surface. Although illustration is omitted, the opening surface can be closed by a door. The door may be a hinged door, a drawer door, or the like.

In the case of a refrigerator including a plurality of storage chambers 14 as shown in FIG. 1, each storage chamber 14 is configured with a part of the box 11 and the heat insulating partition plate 12 as wall members. The plurality of storage rooms may include, for example, a refrigeration room adjusted to a range of about +5 to −3 ° C., a freezing room adjusted to a range of about −10 to −30 ° C., and the like. However, a refrigerator provided with the single store room 14 may be sufficient, and the store room 14 will be comprised by using a part of box 11 as a wall member in that case.

As a means for cooling the storage chamber 14, a refrigeration cycle is used. The refrigeration cycle is composed of a compressor, a condenser, an evaporator, a capillary tube, a dryer, an accumulator, and the like, which are connected by piping to constitute a refrigeration cycle in which refrigerant circulates.

The refrigerator 10 includes a heat radiating member 13 around the opening surface of the storage chamber 14. The heat radiating member 13 is embedded in the wall member and is located at the end of the wall member on the opening surface side. As the heat radiating member 13, for example, a refrigerant pipe that radiates heat when a high-temperature refrigerant in a refrigeration cycle flows, or a cord heater that generates heat when energized can be used.

This makes it possible to prevent condensation around the opening surface. That is, in the vicinity of the opening surface of the storage chamber 14, the surrounding air may be cooled due to the low temperature in the storage chamber 14 and condensation may occur. Suppresses cooling and prevents condensation.

Next, an example of the installation method of the heat dissipation member 13 in the wall member will be described. FIG. 2 is a cross-sectional view taken along the line II-II in the box 11 of the refrigerator 10, that is, the vicinity of the end of the outer wall on the opening surface side.

The box 11 includes an outer box 21 made of a metallic plate material, an inner box 22 made of a resinous plate material, and a foam heat insulating material 25 filled therebetween. The plate material constituting the outer box 21 is bent and processed to form an end face material 21a on the opening surface side (lower side in FIG. 2), and a U-shaped receiving portion that opens inside the storage chamber 14 (left side in FIG. 2). Part 21b is configured. The inner box 22 includes a flange 22b that extends outward at the end on the opening surface side. The flange portion 22b has a heat radiating member holding portion 22a that is inserted into the receiving portion 21b and opened to the opening surface side for holding the refrigerant pipe 23.

The refrigerant pipe 23 is a pipe made of a material such as copper or iron, for example, and functions as a heat radiating member when a high-temperature refrigerant in the refrigeration cycle flows therein.

The refrigerant pipe 23 is disposed in the heat radiating member holding portion 22a of the flange portion 22b, and is pressed against the end face material 21a by the pressing member 24. Thereby, the refrigerant | coolant pipe 23 is stably arrange | positioned in the position pressed against the end surface material 21a. Therefore, the effect of preventing dew condensation by the refrigerant pipe 23 is stabilized, and the necessity of flowing a high-temperature refrigerant to the refrigerant pipe 23 with a margin is reduced. That is, the temperature of the refrigerant flowing through the refrigerant pipe 23 can be lowered, the amount of heat leakage from the refrigerant pipe 23 into the storage chamber 14 can be reduced, and the efficiency of the refrigeration cycle can be improved.

Here, the box 11 is configured by foaming the foam heat insulating material 25 between the outer box 21 and the inner box 22 and foaming. The foam heat insulating material 25 is a material that generates heat during foaming, and is, for example, a rigid urethane foam. The temperature rises to about 60 to 120 ° C., for example, due to heat generation during foaming.

Further, the pressing member 24 is made of a thermally expandable material that is expanded by receiving heat. For example, the thermally expansible material contains a material that foams at a predetermined temperature, and the predetermined temperature is a temperature reached by the heat generated when the foam heat insulating material 25 is foamed. Thereby, the pressing member 24 can be expanded using the heat at the time of foaming the foam heat insulating material 25.

In this regard, FIG. 3 shows a stage before the foam heat insulating material 25 is filled and foamed. In FIG. 3, the pressing member 24 a and the refrigerant pipe 23 before expansion are arranged in the heat radiating member holding portion 22 a, and the flange portion 22 b of the inner box 22 is inserted into the receiving portion 21 b of the outer box 21. The pressing member 24a before expansion has a smaller volume than after expansion, and no force is generated to press the refrigerant pipe 23 against the end face material 21a. Therefore, the refrigerant pipe 23 is separated from the end face material 21a.

From this state, when the foam heat insulating material 25 is filled in the gap between the inner box 22 and the outer box 21 and foamed, the heat generation of the foam heat insulating material 25 causes the pressing member 24a before expansion to expand. As a result, the refrigerant pipe 23 is pressed against the end face material 21a by the pressing member 24, as shown in FIG.

Thus, in the refrigerator 10 of this embodiment, it is not necessary to perform a separate process for thermally expanding the pressing member 24, and the refrigerator can be manufactured while suppressing an increase in the number of manufacturing steps and manufacturing costs.

In addition, if a material with a strong resilience is simply used as the pressing member 24, the refrigerant pipe 23 can be surely pressed against the end face material 21a. However, in this case, the box body 11 needs to be assembled while being crushed against the repulsive force of the pressing member 24. This leads to an increase in the difficulty of manufacturing the refrigerator and an increase in man-hours and costs. On the other hand, if it is the structure of this embodiment, it can assemble easily.

Here, the heat-expandable material is, for example, a material having a structure in which a powdery material in which an inner space portion of a hollow particle made of a thermoplastic resin is filled with a foaming agent is mixed with a liquid or a gel. Moreover, the structure which disperse | distributed the said powder material to the solid material may be sufficient.

Such a heat-expandable material is thermally expanded by foaming the powdery material at a predetermined temperature. The predetermined temperature at which thermal expansion occurs can be set by selecting the hollow particles and the foaming agent, and can correspond to the temperature reached when foaming the foam heat insulating material 25 (about 60 to 120 ° C. in the above example). .

The outer diameter of the hollow particles constituting the powdery material is, for example, 5 to 200 μm before expansion. When this expands to 2 to 5 times the outer diameter by receiving heat, the volume of the thermally expandable material is 10 Increases to about 100 times.

As the thermoplastic resin constituting the hollow particles, for example, PMMA (polymethyl methacrylate), PVDC (polyvinylidene chloride) and the like can be used. Moreover, as a foaming agent, you may mainly use an aliphatic hydrocarbon, for example.

Also, as the gel for mixing the powder material, an organogel that does not contain moisture may be used. Similarly, an organic solvent that does not contain moisture may be used as the liquid for mixing the powder material. Furthermore, as a solid material for dispersing the powdery material, PVC, a rubber-based material, or the like may be used.

Further, as the pressing member 24, a material such as a resin having shape memory performance can be used instead of the powdery material containing the foaming agent described above. That is, a shape memory material storing a large volume state is prepared, and the volume is reduced and arranged in the heat radiating member holding portion 22a. After that, when the foamed heat insulating material 25 is deformed into a large stored volume state by the heat at the time of foaming, a force for pressing the refrigerant pipe 23 toward the end face material 21a acts. The temperature at which the shape memory material is deformed into a memorized shape can also be selected depending on the type of material. In the example of the present embodiment, since the foaming temperature of the foam heat insulating material 25 is 60 to 120 ° C., a shape memory material that recovers the shape at such a temperature may be used. Depending on the type of shape memory material, 400-500% deformation is possible.

The expanded pressing member 24 should have a lower thermal conductivity than the surrounding members constituting the wall member, in particular, the plate material of the inner box 22 and the outer box 21. Thereby, the heat conduction through the pressing member 24 can be suppressed, and the heat insulation of the box 11 can be improved.

Further, in the case of the present embodiment, the pressing member 24a before expansion, which was originally in a different shape as shown in FIG. 3, is changed to a pressing member 24 having a shape along the outer shape of the refrigerant pipe 23 along with the expansion. Yes. Accordingly, the pressing member 24 is in contact with the refrigerant pipe 23 as a surface (a line in the sectional view), which is desirable for the purpose of fixing the refrigerant pipe 23. However, this is not essential. For example, the lower surface side of the pressing member 24a before expansion shown in FIG. 3 may be expanded while being substantially flat, and the pressing member and the heat radiating member may be in contact with each other by a line (a point in the sectional view). Also in this case, the function of pressing the heat radiating member against the end face material 21a is realized.

In particular, when the pressing member 24 is deformed along the outer shape of the refrigerant pipe 23, the refrigerant pipe 23 can be fixed by the pressing member 24 itself without using any other member for determining the position of the refrigerant pipe 23. it can.

-Application to heat insulating partition plate-
Next, another example of the arrangement method of the heat dissipation member 13 in the wall member will be described. FIG. 4 is a diagram showing a cross section taken along line IV-IV in the refrigerator 10, that is, a cross section in the vicinity of the end portion on the opening surface side of the heat insulating partition plate 12 that partitions the storage chambers 14 of the refrigerator 10.

The heat insulating partition plate 12 includes a plate material 31 and a plate material 32, and a foam heat insulating material 37 filled therebetween. In addition, an end face member 35 is provided on the opening surface side (left side in FIG. 4), and a heat radiating member holding portion 36 is provided so as to connect the two

plate members

31 and 32. The end face material 35 has a cross-sectional shape having an insertion portion 35 a inserted between the plate material 31 and the plate material 32. Spaces for accommodating the refrigerant pipe 33 as a heat radiating member by the insertion portion 35a of the end face material 35, the heat radiating member holding portion 36, and one of the plate material 31 and the plate material 32 on the upper and lower sides in the vicinity of the end surface inside the heat insulating partition plate 12, respectively. Is configured. In the space, the pressing member 34 is disposed between the refrigerant pipe 33 and the pipe holding portion 36. The pressing member 34 generates a force that presses the refrigerant pipe 33 against the end face material 35 side. Although not shown in FIG. 4, means for fixing the end face material 35 so that it does not fall off due to the force from the pressing member 34 is used. For example, the nail | claw which extended the insertion part 35a may be caught in the holding | maintenance part 36 in several places.

Also in such a heat insulating partition plate 12, the pressing member 34 is made of a thermally expandable material that has expanded by receiving heat. Further, such thermal expansion is caused by heat generated when the foam heat insulating material 37 is filled and foamed. That is, also in the heat insulating partition plate 12, the pressing member 24 before expansion is disposed between the pipe holding portion 36 and the refrigerant pipe 33, and this is expanded by heat at the time of foaming of the foam heat insulating material 37, It can be set as the structure shown in FIG. Again, it is not necessary to carry out a separate process for inflating the pressing member 34.

Since the pressing member 34 presses the refrigerant pipe 33 against the end face material 35 side, the position of the refrigerant pipe 33 is stabilized. Therefore, the effect of preventing dew condensation by the refrigerant pipe 33 is stabilized, and the necessity of flowing a high-temperature refrigerant to the refrigerant pipe 33 with a margin is reduced. That is, the temperature of the refrigerant flowing through the refrigerant pipe 33 can be lowered, the amount of heat leakage from the refrigerant pipe 33 into the storage chamber 14 can be reduced, and the efficiency of the refrigeration cycle can be improved.

In the above description, the case where a thermally expandable material that expands by heat is used as the pressing member has been described. However, the pressing member may expand under other conditions. For example, the pressing member may be expanded by applying a predetermined pressure, acceleration, or vibration, reaching a predetermined pH, or causing a predetermined chemical reaction. Also in this way, the refrigerant pipe 33 can be pressed against the end face material and disposed at a stable position.

(Modification)
In the above, a heat-expandable material is used as the pressing member 24. It has also been described that a shape memory material is used as the thermally expandable material. However, instead of expanding, the refrigerant pipe 23 may be pressed against the end face material 21a by deformation.

In this case as well, it is possible to use shape memory materials. That is, a shape memory material storing a shape capable of pressing the refrigerant pipe 23 is prepared, and is deformed into a shape in which no force is applied to the refrigerant pipe 23, and is arranged in place of the pressing member 24a before expansion in FIG. To do. For example, a bellows-like or spring-like pressing member storing the extended state is prepared, and this is contracted and arranged. Thereafter, the foamed heat insulating material is deformed into a memorized shape by heat during foaming. If it is the said bellows-like or spring-like member, it will deform | transform into the extended state. Thereby, the refrigerant pipe 23 can be pressed.

(Second Embodiment)
Next, a second embodiment of the present disclosure will be described. Since the basic configuration of the refrigerator of the present embodiment is the same as that of the refrigerator 10 of the first embodiment shown in FIG. 1, differences will be mainly described below.

FIG. 5 is a schematic diagram showing a cross section of the box 11 taken along the line II-II in FIG. 1 in the refrigerator of the present embodiment. Also in the present embodiment, the box body 11 includes the outer box 21, the inner box 22, and the foam heat insulating material 25, as described in the first embodiment. Further, the end face material 21a and the receiving portion 21b are constituted by the plate material constituting the outer box 21, and the flange portion 22b and the heat radiation member holding portion 22a are constituted by the plate material constituting the inner box 22, This is the same as in the first embodiment. Furthermore, the refrigerant | coolant pipe 23 is arrange | positioned as a heat radiating member in the heat radiating member holding | maintenance part 22a.

In the refrigerator according to the present embodiment, a gas permeable film 26 configured to allow gas to permeate but not foam heat insulating material 25 so as to sandwich the refrigerant pipe 23 between the end face material 21a is disposed. The gas permeable film 26 functions as a pressing member in this embodiment. Furthermore, a through hole 22c is provided in the heat dissipation member holding portion 22a.

By providing the through hole 22c, when the foam heat insulating material 25 is filled between the outer box 21 and the inner box 22, the foam heat insulating material 25 passes through the through hole 22c and enters the heat dissipation member holding portion 22a. Is also filled (indicated by arrow 27). Here, as described above, the gas permeable film 26 transmits gas but does not transmit the foam heat insulating material 25. Therefore, when the foam heat insulating material 25 is filled in the heat radiating member holding portion 22a and foamed, the gas permeable film 26 is moved by the pressure, and the refrigerant pipe 23 is pressed against the end face material 21a as a pressing member.

At this time, a gas such as air can pass through the gas permeable film 26 as indicated by an arrow 28 and escape from the heat radiating member holding portion 22a. Thereby, the refrigerant | coolant pipe 23 is stably arrange | positioned in the position pressed against the end surface material 21a. In FIG. 5, the refrigerant pipe 23 is shown at a position somewhat separated from the end face material 21a. This is the state before the foam heat insulating material 25 is filled and the refrigerant pipe 23 is pressed against the end face material 21a. It is because it shows.

(Third embodiment)
Next, a third embodiment of the present disclosure will be described. Since the basic configuration of the refrigerator of the present embodiment is the same as that of the refrigerator 10 of the first embodiment shown in FIG. 1, differences will be mainly described below.

FIG. 6 is a schematic diagram showing a cross section of the box 11 taken along the line II-II in FIG. 1 in the refrigerator of the present embodiment. Also in the present embodiment, the box body 11 includes the outer box 21, the inner box 22, and the foam heat insulating material 25, as described in the first embodiment. Also, the end face material 21a and the receiving portion 21b are constituted by the plate material constituting the outer box 21, and the flange portion 22b is constituted by the plate material constituting the inner box 22, as in the first embodiment. It is the same. The heat radiating member holding portion 22a in FIG. 1 does not have a function of holding the refrigerant pipe 23 in this embodiment, and is a fixing portion 22d for fixing the flange portion 22b to the receiving portion 21b.

In the present embodiment, the refrigerant pipe 23 is disposed along the end face material 21a and at a position close to the outer corner of the box 11. Further, a pressing member 24 is disposed so as to cover the refrigerant pipe 23, and the pressing member 24 is covered with a cover material 29 made of, for example, aluminum tape. The cover material 29 fulfills a function of arranging the refrigerant pipe 23 and the pressing member 24 at predetermined positions in the manufacturing process of the refrigerator 10.

In the refrigerator of this embodiment, the refrigerant pipe 23 is fixed at a predetermined position by the pressing member 24 itself.

Also in this embodiment, the refrigerant pipe 23 is pressed against the outer box 21 by the pressing member 24. The pressing member 24 is made of a thermally expandable material that is expanded by receiving heat. Further, such thermal expansion is caused by heat generated when the foam heat insulating material 25 is filled and foamed. Again, it is not necessary to carry out a separate process for inflating the pressing member 24.

(Other configuration examples)
In addition, in the refrigerator 10 of FIG. 1, the heat radiating member 13 is arrange | positioned about both the heat insulation partition plate 12 and the box 11, and it is the structure by which the heat radiating member 13 is arrange | positioned to the whole periphery of the opening surface of all the three storage chambers 14. FIG. However, this is not essential. For example, the heat dissipating member 13 may be omitted from the heat insulating partition plate 12. Further, when other dew condensation prevention means are used in combination, it is also conceivable to dispose the heat radiating member 13 only in a part around the opening surface.

Furthermore, the case where the heat radiating member 13 is arranged along the end face material 21a as shown in FIG. 2 has been described above. However, the heat dissipating member 13 may be arranged at another position. For example, FIG. 7 shows an example in which the heat radiating member 13 is arranged on the back side of the refrigerator 10. That is, the wall on the back side (opposite side to the door) of the storage chamber 14 is also composed of a wall member including a pair of plate materials and a foam heat insulating material filled between the pair of plate materials, and the heat dissipation member 13 is included in the wall member. Is arranged. Even in such a case, the heat radiating member 13 can be pressed against the outer box 21 by utilizing the expansion of the pressing member 24. Similarly, the heat radiating member 13 may be disposed on the side of the refrigerator 10.

In the above description, the case where the refrigerant pipe that radiates heat by flowing the high-temperature refrigerant in the refrigeration cycle is used as an example of the heat radiating member. However, it is not limited to this. For example, a code heater that generates heat when energized can be used.

Fig. 8 schematically shows an example of a cord heater. The cord heater 40 includes a core wire 41 made of a glass wire, a resin wire or the like, a heating wire 42 wound around the core wire 41, and a heat-resistant coating 43 that covers the core wire 41 and the heating wire 42. The heat resistant coating 43 is made of, for example, vinyl or silicone. In FIG. 8, a part of the heat-resistant coating 43 is cut open to show the inside (core wire 41 and heating wire 42).

The cord heater is more flexible than the refrigerant pipe and has a high degree of freedom in shape, so it can be easily placed along the desired shape. The refrigerant pipe is a pipe made of copper, iron or the like, and needs to be bent so that the pipe is not closed, connected by welding, or the like.

If a cord heater is used instead of the refrigerant pipe, it is not necessary to arrange the refrigerant pipe around the front opening of the refrigerator for the purpose of preventing condensation. Thereby, a refrigerant | coolant pipe can be shortened and the structure of a refrigerating cycle can be simplified. It is also possible to configure the refrigeration cycle only in the refrigerator machine room, and to arrange only the electric wiring in the storage room, thereby reducing the number of welding points of the refrigerant pipe. As a result, the manufacturing cost of the refrigerator can be reduced.

Also, since the refrigerant pipe is a part constituting a part of the refrigeration cycle, it is difficult to finely adjust the temperature. On the other hand, the temperature of the cord heater can be finely adjusted by adjusting the energization amount, and further, when the heat radiation for preventing condensation is not necessary, it is possible to prevent heat generation. As a result, it is possible to reduce waste heat entering the refrigerator.

The refrigerator of the present disclosure is useful as a more efficient refrigerator because it can stably suppress condensation while suppressing the amount of heat released.

DESCRIPTION OF SYMBOLS 10 Refrigerator 11 Box 12 Heat insulation partition plate 13 Heat radiating member 14 Storage chamber 21 Outer box 21a End surface material 21b End part 22 Inner box 22a Heat radiating member holding part 22b Gutter part 22c Through-hole 22d Fixing part 23 Refrigerant pipe 24 Pressing member 24a Before expansion Pressing member 25 Foam heat insulating material 26 Gas permeable film 29 Cover member 31 Plate material 32 Plate material 33 Refrigerant pipe 34 Pressing member 35 End face material 35a Inserting portion 36 Heat radiating member holding portion 37 Foam heat insulating material 40 Code heater 41 Core wire 42 Heating wire 43 Heat resistant coating

Claims

At least one box-shaped storage room;
A heat dissipation member,
The storage chamber is configured as an opening surface in which one of the frames made of wall members is closed and the other can be closed by a door,
The wall member includes a hollow structure made of a plurality of plate members, and a foam heat insulating material filled in the hollow structure,
The heat dissipating member is disposed in the wall member;
In the wall member, a pressing member that presses the heat dissipation member against the plate member is provided,
The refrigerator, wherein the pressing member is a material that takes a state of pressing the heat radiating member under a predetermined condition.
In claim 1,
The pressing member is a thermally expandable material that expands at a predetermined temperature,
The foam insulation is a material that generates heat during foaming,
The refrigerator according to claim 1, wherein the predetermined temperature is a temperature reached by heat generation during foaming of the foam heat insulating material.
In claim 1 or 2,
The plurality of plate members constituting the wall member, respectively, constitute an outer box constituting the outer shape of the refrigerator and an inner box arranged inside the outer box to constitute the storage chamber,
The end surface on the opening surface side of the wall member is composed of an end surface material,
The said pressing member presses the said heat radiating member against at least one of the said board | plate material and the said end surface material, The refrigerator characterized by the above-mentioned.
In claim 3,
The plate material constituting the outer box is bent at an end portion on the opening surface side to constitute at least a part of the end face material, and constitutes a U-shaped receiving portion that opens inside the storage chamber,
The heat dissipation member is disposed along the end face material in the wall member,
The plate member constituting the inner box includes a flange portion that extends in an outer side direction of the storage chamber and is inserted into the receiving portion at an end portion on the opening surface side,
The refrigerator includes a heat dissipation member holding portion that holds the heat dissipation member and is open to the end face material.
In any one of claims 1 to 4,
A plurality of the storage chambers;
The wall member constitutes a heat insulating partition plate that partitions between the plurality of storage chambers,
The end surface on the opening surface side of the wall member is composed of an end surface material,
The said pressing member presses the said heat radiating member against at least one of the said board | plate material and the said end surface material, The refrigerator characterized by the above-mentioned.
In claim 5,
In the vicinity of the end face material of the heat insulating partition plate, a heat radiating member holding portion is provided so as to connect the plurality of plate materials,
The end face material includes an insertion portion that is inserted between the plurality of plate materials in the heat insulating partition plate,
The heat dissipation member is disposed along the end face material in the wall member,
A space for accommodating the heat radiating member is formed in the vicinity of the end face material inside the heat insulating partition plate by the insertion portion, the heat radiating member holding portion, and one of the plurality of plate members. Features a refrigerator.
In claim 1,
The end surface on the opening surface side of the wall member is composed of an end surface material,
The refrigerator further comprising a heat radiating member holding portion for holding the heat radiating member and the pressing member along the end face material in the wall member.
In any one of claims 1 to 7,
Regarding the back side wall that closes the opposite side of the door in the storage chamber, the wall structure includes the hollow structure made of the plurality of plate members, and the foam heat insulating material filled in the hollow structure,
The said heat radiating member is arrange | positioned in the said back side wall, The refrigerator characterized by the above-mentioned.
Any one of claims 1 to 8,
The refrigerator, wherein the pressing member is a hollow particle made of a thermoplastic resin, and includes a powdery material in which a hollow part is filled with a foaming agent.
In claim 9,
The refrigerator is characterized in that the powdery material is in a state of being mixed in a liquid or gel, or in a state of being dispersed in a solid material.
In any one of claims 1 to 10,
The refrigerator, wherein the pressing member is a shape memory material that is deformed into a predetermined shape under the predetermined condition.
In any one of claims 1 to 11,
The said pressing member after expansion | swelling has low heat conductivity compared with at least one of an outer box, an inner box, and an end surface material, The refrigerator characterized by the above-mentioned.
In claim 1,
The refrigerator is characterized in that the predetermined condition is that a predetermined pressure, acceleration or vibration is applied, a predetermined pH is reached, or a predetermined chemical reaction is caused.
In claim 1,
The pressing member is made of a material that does not permeate the foam heat insulating material,
The refrigerator, wherein the heat radiating member is pressed against the plate material by the foam heat insulating material through the pressing member.
In claim 14,
The pressing member is a gas permeable film that allows gas to permeate but does not allow the foam insulation to permeate.
The heat radiating member is located between the gas permeable film and the plate material,
The refrigerator, wherein the heat radiating member is pressed against the plate material by the foam heat insulating material through the gas permeable film.
In claim 14 or 15,
It comprises a part of the plate material, or is provided as a separate member, further comprising a heat dissipating member holding portion that holds the heat dissipating member and opens on the end face material side,
The refrigerator according to claim 1, wherein the heat dissipating member holding portion includes a through hole serving as a passage for the foam heat insulating material.
In any one of claims 1 to 16,
The refrigerator, wherein the heat radiating member is a refrigerant pipe in which a high-temperature refrigerant of a refrigeration cycle flows.
In any one of claims 1 to 17,
The refrigerator is characterized in that the heat radiating member is a cord heater that generates heat when energized.