JP2000304401A - Preservation chamber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a preservation chamber, capable of circulating air for cooling a thermo-module smoothly without being hindered even when the preservation chamber is installed under a condition that the rear surface of the same is approximated to a wall surface. SOLUTION: An outside chamber is formed by covering the rear wall of a heat insulating vessel 1 by a rear surface cover while a suction port and an exhaust port for outside chamber air are provided on the left and right side surfaces of the rear surface cover. A heat sink 12, effecting heat exchange between the heat source side heat exchanging surface unit 10c of a thermo- module 10, is arranged in the outside chamber while air, effecting heat exchange between the heat sink 12, is taken into through the suction port and is discharged to the outside of the chamber through the exhaust port after effecting the heat exchange. The inside of the heat insulating vessel 1 is cooled or heated by heat absorbing effect or heat dissipating effect in the utilizing side heat exchanging surface unit 10b of the thermo-module 10. A drain pan is mounted slidably below the heat insulating vessel 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage for cooling and preserving beverages and for preserving food at a low temperature by keeping the inside of the refrigerator cool or warm by a thermo module comprising a Peltier element.

[0002]

2. Description of the Related Art For example, Japanese Patent Application Laid-Open No. Hei 10-325664 discloses a storage cabinet for keeping the inside of a refrigerator or the like that stores foods and drinks cool or warm with a thermo module. This conventional apparatus includes a heat insulating container for storing stored items at a predetermined temperature, a thermo module disposed on a rear wall of the heat insulating container, and a surface (a use side heat exchange surface portion) inside the refrigerator of the thermo module. It has a heat sink for heat absorption attached, and a heat sink for heat exhaust attached to a surface (heat source side heat exchange surface portion) outside the refrigerator of the thermo module. Then, the heat inside the refrigerator is moved to the outer surface of the refrigerator by the thermo module through the heat sink for heat absorption, and the transferred heat is released to the outside of the refrigerator through the heat sink for heat radiation. A cover having an intake port and an exhaust port is attached to the outside to form a cooling air passage. Although not described in the above-mentioned publication, generally, a drain pan for receiving drain generated in the refrigerator was directly disposed on the floor below the heat insulating container.

[0003]

However, such a storage is often installed along the wall surface at the time of installation. However, when the back surface of the cover is installed close to or in close contact with the wall surface, Since the intake port and the exhaust port are provided on the back surface of the cover, there is a problem that the airflow for cooling the thermomodule in the cover does not flow smoothly, and the performance of the thermomodule is reduced. In addition, this thermomodule uses a heat absorbing heat sink made of heat absorbing fins to cool the inside of the refrigerator, so that there is a problem that the structure is complicated and the space in the refrigerator becomes small. In addition, since the drain pan is disposed directly on the floor, the position of the drain pan is not fixed, and it is difficult to fix the drain pan at a predetermined position.

[0004] The present invention has been made in view of the above-mentioned problems existing in the prior art, and even if the rear surface is installed close to a wall surface, air that exchanges heat with a thermo module is provided. It is an object of the present invention to provide a storage that can be circulated smoothly without obstructing the circulation.

Another object of the present invention is to provide a storage having a simple structure by omitting a heat sink for cooling the inside of the storage and making the space in the storage more widely usable.

It is another object of the present invention to provide a storage in which a drain pan can be easily attached to a predetermined position. Another object of the present invention is to provide a storage in which drain water accumulated in a drain pan is promoted in natural evaporation.

[0007]

In order to achieve the above object, the present invention provides a heat insulating container for storing stored items at a predetermined temperature and a heat insulating container by covering a rear wall of the heat insulating container with a back cover. The compartment is formed outside the rear wall of the container, and comprises an outside chamber having an intake port and an exhaust port, a Peltier element, a use-side heat exchange surface portion, and a heat source-side heat exchange surface portion. A thermo module disposed on the rear wall of the heat insulating container so as to be held, a blower for circulating outside air in the outside room, and heat exchange with the heat source side heat exchange surface portion of the thermo module. And a heat sink disposed to exchange heat with the outside air introduced into the outside chamber, wherein the suction port and the exhaust port are provided on left and right side surfaces of the outside chamber. That we have And butterflies.

Further, according to the present invention, the heat insulating container is formed of an inner box made of a metal member, an outer box, and a heat insulating material injected between the inner box and the outer box. The use-side heat exchange surface portion is arranged to be able to conduct heat to the inner box directly or via a heat transfer block.

Further, the present invention is characterized in that the rear corners of the left and right side surfaces of the outside compartment are formed so as to be inclined rearward toward the center in the left and right direction of the heat insulating container. .

Further, the invention is characterized in that the upper and lower surfaces of the outer chamber are formed so as to be inclined rearward toward the center in the vertical direction of the heat insulating container.

Further, the present invention is characterized in that the blower is an axial blower, and the axial blower is disposed so as to face an inclined surface formed on any one side surface of the outside chamber. Features.

Further, the present invention provides an air passage forming plate for covering the heat sink in the outside room so as to allow the outside air to flow through the heat sink, and a power supply disposed above an upper surface of the air passage forming plate. A power supply board on which the circuit components are disposed, a protective cover for covering the power supply board in cooperation with an upper surface of the airflow path forming plate are provided, and a communication hole is provided on the upper surface of the airflow path forming plate. It is characterized by the following.

[0013] Further, in the present invention, the air path forming plate that covers the heat sink so as to allow the air outside the chamber to flow through the heat sink, and the air path forming plate is disposed on the rear surface of the rear portion of the air path forming plate in the external room. A control board on which a control circuit component device is disposed is provided, and a storage space for the control board is formed by a back surface of the air path forming plate and the back cover.

According to the present invention, there is further provided a heat insulating container for storing stored items at a predetermined temperature, an outer chamber partitioned and formed outside a rear wall of the heat insulating container and having an intake port and an exhaust port, a Peltier device, A thermo module comprising a use-side heat exchange surface portion and a heat source-side heat exchange surface portion, which is disposed on a rear wall of the heat insulating container so as to maintain the inside of the heat insulating container at a predetermined temperature, and circulates outside air into the outside room of the heat insulating container. A blower for causing the heat source side heat exchange surface portion of the thermo module to be exchanged with the heat source side, and arranged to exchange heat with the outside air introduced into the outside room. In a storage provided with a heat sink, the heat insulating container is formed by an inner box made of a metal member, an outer box, and a heat insulating material injected between the inner box and the outer box. The use side heat A heat exchange sheet is attached to an inner surface of a contact portion of the rear wall of the inner box, which is in contact with the use-side heat exchange surface, while a replacement surface portion is disposed to be able to conduct heat to the inner box directly or via a heat transfer block. It is characterized by having.

[0015] Further, the present invention is characterized in that the attachment portion of the heat insulating sheet on the inner surface of the inner box is a concave surface having substantially the same size as the heat insulating sheet.

Further, the present invention provides a storage having a cooling means for cooling the inside of the heat insulating container and a drain pan for receiving drain generated in the heat insulating container below the heat insulating container. , Four pedestals are provided so as to be arranged two each on the left and right as viewed from the front, and a step is provided on each of the four pedestals. The drain pan can be slidably mounted from the front in between.

Further, the present invention provides a heat insulating container for storing stored items at a predetermined temperature, an outer chamber partitioned and formed outside a rear wall of the heat insulating container and having an intake port and an exhaust port, a Peltier device, A thermo module comprising a use-side heat exchange surface portion and a heat source-side heat exchange surface portion, which is disposed on a rear wall of the heat insulating container so as to maintain the inside of the heat insulating container at a predetermined temperature, and circulates outside air into the outside room of the heat insulating container. And a heat sink arranged to exchange heat with the heat source side heat exchange surface of the thermo module, and arranged to exchange heat with the outside air introduced into the outside chamber. A storage pan having a drain pan disposed below the heat insulating container to receive drain generated in the heat insulating container, the drain pan extending rearward to a position below the outside chamber, The room The ventilation holes for circulating a portion of the outside-compartment air ring from the extended portion of the drain pan on the upper surface of the drain pan, characterized in that provided on the lower surface portion of the outside-compartment chamber.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 embodying the present invention will be described below in detail with reference to FIGS.
In each embodiment, the same or common portions are denoted by the same reference numerals, and description thereof will be simplified.

Embodiment 1 Therefore, the first embodiment
Will be described with reference to FIGS. Reference numeral 1 denotes an insulating container provided with an inner box 2, an outer box 3, and a heat insulating material 4 injected so as to be interposed between the inner box 2 and the outer box 3. This inner box 2
Is formed of an aluminum-based metal plate having good thermal conductivity and being resistant to corrosion. The outer case 3 is made of plastic and is divided into a front outer case 3a and a rear outer case 3b in the first embodiment, and as shown in FIGS. The front end of the box 3b serves as a squeezed portion, is fitted inside the front outer box 3a, and is integrally connected. An opening is provided at the front of the heat insulating container 1, and an opening / closing door 5 is provided at the opening.

Reference numeral 10 denotes a thermo module including a Peltier element 10a, a use-side heat exchange surface 10b, and a heat source-side heat exchange surface 10c. On the rear wall of the heat insulating container 1, a storage hole having substantially the same size as that of the thermo module 10 penetrates the outer box 3 and the heat insulating material 4 and is formed leaving a metal plate forming the inner box 2, and the thermo hole is formed in the storage hole. A module 10 is provided. A heat transfer block 11 made of an aluminum alloy having good heat conductivity is interposed between the thermo module 10 and the inner box 2, and the heat transfer block 11 is screwed to the inner box 2 by heat. Is joined to. The use side heat exchange surface 10b of the thermo module 10 and the inner box 2
Are connected via this heat transfer block 11 so as to be able to transfer heat. The heat transfer block 11 is integrally fixed to the heat insulating container 1 by injecting the heat insulating material 4. The thermo module 10 is detachably fixed to the heat transfer block 11 from the rear side by screws or the like. Further, a concave surface slightly larger than the heat transfer block 11 is provided at a position corresponding to the heat transfer block 11 on the inner surface of the inner box 2, and a heat insulating sheet 2a made of a heat insulating member such as polypropylene is attached to the concave surface. . The depth of this concave surface is
It is formed substantially equal to the thickness of the heat insulating sheet 2a.

Reference numeral 12 denotes a heat sink which is thermally conductively connected to the heat source side heat exchange surface 10c of the thermo module 10. The heat sink 12 has a large number of aluminum fins 12a arranged in a lateral direction so as to allow the outside air to circulate and exchange heat from the right to the left as viewed from the front (from the left to the right as viewed from the back). It is configured. Reference numeral 13 denotes an air path forming plate that covers the heat sink 12, and reference numeral 14 denotes a rear surface that covers not only the air path forming plate 13 but also the entire back surface of the heat insulating container 1 and forms an outside chamber outside the rear wall of the heat insulating container 1. It is a cover. Therefore, this back cover 1
4 is formed in a substantially box shape with an open front surface. The rear corners of the left and right side surfaces 14a and 14b of the rear cover 14 are inclined surfaces that incline toward the center in the left and right direction toward the rear.
The rear corners at c and 14d are also inclined surfaces inclined toward the center in the vertical direction. And this back cover 1
4, an intake port 15 is formed on an inclined surface portion of the right side surface portion 14a when viewed from the front, and an exhaust port 16 is formed on an inclined surface portion of the left side surface portion 14b when viewed from the front side. An auxiliary intake port 15a of the intake port 15 is provided on the right half of the lower surface section 14d of the rear cover 14 as viewed from the front, and an auxiliary exhaust port 16a of the exhaust port 16 is provided on the left half of the lower cover 14d. Is formed.

The air passage forming plate 13 has upper and lower surface portions 13c,
13d is formed in a horizontal plane, and the right side 13
a is an inclined surface that is substantially parallel to the inclined surface of the right side surface 14a of the back cover 14. Two axial blowers 20 are attached to the rear cover 14 side of the right side portion 13a at an interval above and below so as to face the right side portion of the rear cover 14. In addition, the right side portion 13a
There are two fan guide holes for the axial blower 20 on the inclined surface
Two axial blowers 20 are attached so that the outside air flows from the right to the left through the guide hole through the guide hole. The left side surface portion 13b of the airflow path forming plate 13 is bent rearward and extends until its front end contacts the rear end of the left side surface portion 14b of the back cover 14. A control board 31 on which the control circuit components of the storage are arranged is attached to the rear side of the rear surface 13e of the air path forming plate 13. Further, left and right rising pieces 14e, 14f and up and down rising pieces 14g, 14h are erected from the back cover 14 so as to block the left, right, up and down of the control board 31 on the back portion 13e of the air path forming plate 13. Thus, a storage section for the control board 31 is formed.

A power supply board 32 on which power supply circuit components of the storage are arranged is mounted above the air flow path forming plate 13 and on the back of the heat insulating container 1. Further, a protective cover 33 formed by a surface parallel to the inclined surface of the upper surface 14c of the rear cover 14 and a surface parallel to the rear of the rear cover 14 is attached. A storage room for the power supply board 32 is formed by the upper surface portion 13c of the path forming plate 13. A communication hole 17 composed of a plurality of holes is provided in the upper surface portion 13 c of the air passage forming plate 13, and a part of the outside air flowing through the air passage forming plate 13 is introduced into the storage chamber of the power supply board 32. are doing. The bottom wall of the heat insulating container 1 is provided with a drain port 42 for guiding drain water formed on the inner surface of the inner box 2 to a dish-shaped drain pan 41 disposed below the heat insulating container 1. I have.

As shown in FIG. 7, 50 is a foot on the bottom of the heat insulating container 1. This foot 50 is 2
They are arranged symmetrically at the locations, that is, at a total of four locations. The foot 50 includes an upper part 52 and a screw 5
3 is provided. The foot 50 has the upper part 52 sandwiched between the heat insulating container 1 and the lower part 51 fixed to the bottom wall of the heat insulating container 1 by screwing. The upper part 52 has a stepped portion 5 having a stepped height H slightly larger than the height of the drain pan 41.
4 are formed. The step portions 54 of the left and right pedestals 50 are arranged so as to face each other.

The drain pan 41 has a substantially T-shaped horizontal plane, and the width of the front part is larger than the width of the rear part.
The drain capacity can be increased. Further, a dimension L between the step portions 54 of the left and right foot 50 is formed slightly larger than a rear width dimension of the drain pan 41. With this configuration, the drain pan 41 is slidably inserted into and removed from the step portion 54 of the foot 50 and the bottom surface of the heat insulating container 1 so that the rear portion thereof can be freely inserted and removed. Further, the drain pan 41 is formed so as to be disposed at a predetermined position by sliding the drain pan 41 to a position where the rear edge of the front part thereof abuts on the front foot 50. At this time, the rear end of the drain pan 41 extends rearward from the rear edge of the heat insulating container 1. Also,
A ventilation hole 18 is formed in a horizontal portion of the lower surface of the rear cover 14 located above the extension of the drain pan 41, and a part of the outside air flowing through the rear cover 14 partially flows through the drain pan 41. It is formed to be distributed.

The opening / closing door 5 on the front of the heat insulating container 1 is
An outer plate 5a having a front dimension substantially matched to the front dimensions of the above, and having a hollow space therein, and a heat insulating material 5c injected into the hollow interior of the outer plate 5a, and having heat insulating performance. The door 5. The opening / closing door 5 is pivotally supported by an upper hinge 60 at an upper right portion and a lower hinge 70 at a lower right portion so as to be openable and closable in a right-opening manner when viewed from the front (FIGS. 1, 9 to 14).
reference). In addition, a locking mechanism such as a magnet is provided at the front left end of the outer box 3 facing the left end portion of the door 5 so that the door 5 can be held in a closed state. Also, as shown in FIGS. 1 and 2, reference numeral 80 designates the open / close door 5 in consideration of design.
The operation panel, which is long at the top and bottom, almost at the center of the
An operation unit 82 for setting and displaying the temperature in the storage is formed in a portion corresponding to the operation board 81 in which the control circuit components of the storage provided in the storage are disposed.

The details of the mounting portion of the upper hinge 60 are shown in FIGS. 9 to 11. The upper main body side hinge 61 and the like do not protrude to the side or up and down of the door 5 and the heat insulating container 1. ing. The upper body side hinge 61 is made of a plastic material, and is fixed to the heat insulating container 1 with a screw (not shown). A shaft support hole 62 is provided in a shaft support portion of the main body side hinge 61. Numeral 63 denotes a pivot pin made of plastic, which is shown detached from the door 5 in FIG. 10, but is actually fixed to the door 5 side,
It is rotatably supported by the shaft support hole 62. Further, reference numeral 64 denotes a notch provided at a corner of the door 5 so that when the door 5 is opened to a predetermined angle as shown in FIG. Are avoiding. The notch 64 extends halfway down the side of the door 5 so that the appearance is not impaired even when viewed from the front or right side of the door 5.

The details of the mounting portion of the lower hinge 70 are shown in FIGS. 12 to 14, but the lower main body side hinge 71 is made of a metal member. It is formed in a U-shaped cross section that opens. Further, a shaft support pin 72 having a through hole 73 for supporting the lower surface of the door 5 is provided at the tip of the lower body side hinge 71. Further, a portion where the lower hinge 70 is attached to the heat insulating container 1 is formed as a concave portion 74 opened downward so as not to be seen from the side, and the lower hinge 70 is fixed to the heat insulating container 1 by being screwed from below. ing. As shown in FIG. 14, a notch 75 is formed at a corner of the opening and closing door 5 so as to open the opening and closing door 5 to a predetermined angle, leaving a front wall. Then, the electric wire 85 is passed through the inside of the main body side hinge 71 having a U-shaped cross section and the through hole 73 of the pivot pin 72 so that the twist of the electric wire 85 to the operation panel 80 is reduced when the door 5 is opened. It passes from the heat insulation container 1 side to the opening / closing door 5 side.

Next, the operation of the storage configured as described above will be described. The operator selects the set temperature in the refrigerator (for example, an arbitrary temperature of 0 to 50 ° C.) using the operation unit 82 and operates the storage. At this time, the application direction of the direct current to the thermomodule 10 is selected according to the relationship between the outside air temperature, the temperature of the stored items, and the set temperature inside the compartment, and the heat absorbing surface portion 10b of the thermomodule 10 absorbs heat. Alternatively, while the heat radiation action is performed, the axial blower 20 is operated, and the outside air is supplied from the intake port 15 and the auxiliary exhaust port
From the air passage forming plate 13, and is discharged from the exhaust port 16 and the auxiliary exhaust port 16a. Thereby, in the heat insulating container 1, the inner box 2 of the heat insulating container 1 is cooled or heated via the heat transfer block 11, and the inside of the heat insulating container 1 is controlled to a predetermined temperature. The thermo module 10
In the heat source side heat exchange surface portion 10c, heat radiation or heat absorption is performed between the outside air flowing through the air path forming plate 13 through the heat sink 12 and the amount of heat absorbed or released in the heat insulating container 1. Dissipated or absorbed heat from outside air.

When the set temperature is low, the inside of the heat insulating container 1 is cooled from the surface of the inner box 2 so that
Drain water condensed on the surface of the inner box 2 falls on the bottom surface of the inner box 2 and is drained from the drain port 42 to the drain pan 41. The drain water stored in the drain pan 41 is spontaneously evaporated by the outside air flowing out of the ventilation holes 18 formed on the lower surface of the back cover 14. Further, during operation of the storage, a part of the outside air flowing inside the airflow path forming plate 13 is introduced into the storage chamber of the power supply board 32 from the communication hole 17 formed in the upper surface 13 c of the airflow path forming plate 13. The power supply board 32 is cooled, and the power supply board 32 is prevented from overheating.

Since the first embodiment is configured as described above, even if the back of the storage, or the three sides of the back and the left and right sides of the storage are approaching or in contact with the wall of the building, The rear corners of the left and right side surfaces 14a and 14b of the cover 14 are formed as inclined surfaces inclined inward, and the intake port 15 and the exhaust port 16 are formed on the inclined surfaces. The space does not block the intake port and the exhaust port 16. Further, since the inclined surfaces are provided at the rear corners of the upper and lower surfaces 14c and 14d of the back cover 14, an air passage communicating with the intake port 15 and the exhaust port 16 is secured along the inclined surfaces. Thereby, circulation of the outside air in the air path forming plate 13 is performed smoothly. In order to make the flow of the outside air smooth, it is conceivable to provide an intake port or an exhaust port on the upper surface of the back cover 14, but in this case, there is a drawback that dust easily enters. Further, in the storage, there is a need to reduce the required floor area, so that even if the horizontal dimension is reduced and the height dimension is increased, it tends to be easily accepted by the market. Therefore, providing the intake port and the exhaust port on the left and right side portions 14a and 14b has an advantage that the dimensions of the intake port and the exhaust port can be increased. In addition, two axial blowers 20 are used as blowers for circulating outside air in the outside room, and the two axial blowers 2 are used.
0 is provided so as to face the right side surface portion 14a of the back cover 14, so that the depth dimension of the storage becomes compact.

The right and left side portions 14 of the back cover 14
By inclining the rear corners of the a and b, and by inclining the rear corners of the upper and lower surfaces 14c and 14d of the back cover 14, a design effect of making the depth dimension of the storage small appears. Is done. Also, the upper and lower surfaces 14
Air passages to the intake port 15 and the exhaust port 16 are secured along the inclined surfaces of c and 14d, so that the outside air can flow more smoothly in the outside room. Further, since the auxiliary intake port 15a and the auxiliary exhaust port 16a are provided on the inclined surface portion provided on the lower surface portion 14d of the rear cover 14, the flow of the outside air inside the outside room is further smoothly performed.

Further, the use side heat exchange surface portion 10b of the thermo module 10 is attached to the aluminum-based metal inner box 2 via the heat transfer block 11 so as to be able to conduct heat so that the inside of the heat insulating container 1 is cooled or heated. Therefore, the configuration is simplified, and the effective storage space in the heat insulating container 1 is expanded. Also, since a concave surface is formed on the inner surface portion of the inner box 2 corresponding to the heat transfer block 11, and the heat insulating sheet 2a is attached to this portion, the heat insulating effect of the heat insulating sheet 2a allows
Condensation in this part is prevented, and the storage near this part is not locally supercooled or heated. Also, since the heat insulating sheet 2a is attached to the concave portion,
At the time of sticking work, the work of confirming the sticking position of the heat insulating sheet 2a becomes easy.

Further, since a part of the outside air flowing through the outside chamber is circulated in the storage room of the power board 32 in which the power supply circuit components are disposed, the power board 32 is always cooled. There is no risk of overheating. Also, the power supply board 32
Is disposed above the upper surface 13 c of the airflow path forming plate 13, so that foreign matters such as dirt are less accumulated than when the power supply board 3 is disposed below the airflow path forming plate 13.
2 improves the reliability.

Further, the rising piece 14 from the rear cover 14
e, 14f, 14g, and 14h are erected, and the air path forming plate 13
Control board 31 attached to rear surface 13e
Is formed, the control board 31 is protected from foreign matters such as dust, and the reliability of the control board is improved. Also, the rising pieces 14e, 14f, 14
g and 14h have a function of improving the strength of the back cover 14, and further have a function of smoothly guiding the outside air sucked from the air inlets 15 and 15a into the air path forming plate 13. Further, by removing the back cover 14, the maintenance of the control board 31 can be easily performed.

Further, since the drain pan 41 is slidably mounted, it can be easily removed for cleaning or the like. Also, a part of the outside air circulating in the outside room flows into the drain pan 41 from the ventilation hole 18 provided in the lower surface portion 14d of the back cover 14, so that the drain water is actively evaporated by the outside air. Is done. Therefore, drain pan 4
There is no such thing as drain water gain from 1. In addition, since the upper hinge 60 and the lower hinge 70 do not protrude left, right, up and down, the appearance is not hindered in design when viewed from the front.

Embodiment 2 The second embodiment is similar to FIG.
As shown in FIG. 5, left and right side portions 14a of the rear cover 14,
The rear side of the heat insulating container 1 is extended straight and rearward in the same direction as the left and right side surfaces of the heat insulating container 1 without providing an inclined surface portion at the rear corner portion of the 14b.
And an exhaust port 16. Even with this configuration, the intake port 15 and the exhaust port 16 are
As described above, the air flow outside the compartment in the air path forming plate 13 is smoothly performed even if the wall is close to the rear surface of the storage compartment.

Embodiment 3 The third embodiment is different from the one shown in FIG.
As shown in FIG. 6, left and right side portions 14a of the rear cover 14,
14b is straightly extended rearward as in the second embodiment, and the right side surface 13a of the air path forming plate 13 is also
The rear cover 14 is once inclined and extended to the rear cover 14, and is further bent straight forward at the position of the inner surface of the rear cover 14, and the axial blower 20 is attached to the thus formed right side surface portion 13 a. In this case, since the axial blower 20 is not attached at an angle, the depth dimension of the back cover 14 increases, but, as in the first and second embodiments, the wall approaches the back surface of the storage. Even if it is installed in a state, the outside air flow in the air path forming plate 13 is smoothly performed.

Embodiment 4 In the fourth embodiment, as in each of the above embodiments, heat absorption or heat dissipation at the use-side heat exchange surface portion 10b of the thermomodule 10 is thermally conducted to the inner box 2 via the solid heat transfer block 11 so that the inner module 2 is internally heated. Instead of cooling or heating the inside of the heat insulating container 1 through the box 2, FIG.
As shown in FIG. 7, the inside of the heat insulating container 1 is cooled or heated through a fluid heat medium such as water circulating in the heat medium pipe 90. The heat medium pipe 90 is connected to a heat exchanger 91 that performs heat exchange with the use-side heat exchange surface 10 b of the thermomodule 10. Then, a heat medium such as water circulating in the heat medium pipe 90 via the heat exchanger 91 is cooled or heated. Further, the heat medium pipe 90 is provided alongside the outer side of the inner box 2.
A wide area of the inner box 2 is cooled or heated through a heat medium circulating through the heat exchanger, and the inside of the heat insulating container 1 is cooled or heated.
In addition, 92 is a heat medium circulation pump. Therefore, in this case, although the number of components increases, the inner box 2 can be uniformly cooled and the temperature distribution in the heat insulating container 1 can be improved.

Next, a modification of the above embodiment will be described. (1) The storage may be dedicated to refrigeration or may be dedicated to warm storage. (2) The number of the thermomodules 10 may be determined in relation to the cooling load of the stored items, and may be one, or may be three or more. (3) Thermo module 1 in the first to third embodiments
The zero use-side heat exchange surface portion 10b may directly exchange heat with the inner box 2.

(4) The thermo module 10 is used exclusively for cooling, that is, used so that only heat absorption is performed on the use side heat exchange surface 10b. On the other hand, a dedicated heater is provided. The inside of the heat insulating container 1 may be heated. (5) Heat source side heat exchange surface 10 of thermo module 10
The heat exchange between c and the heat sink 12 may be indirectly performed via a fluid heat medium such as water without directly exchanging heat. In this case, the number of parts increases, but the other effects are the same as those of the embodiments. (6) In the first to third embodiments, the use side heat exchange surface portion 10b of the thermo module 10 may be brought into direct contact with the inner box 2 without the heat transfer block 11 to conduct heat. In this case, it is difficult to replace the thermo module 10, but the number of components is reduced, and other effects are the same as those of the first to third embodiments.

(7) The outer box 3 is, as shown in FIG.
It may be an integral type without being divided into a front part and a rear part. (8) The foot 50 may be an integral type instead of the split type as shown in FIG.

(9) Contrary to the above embodiments, the outside air flow in the air passage forming plate 13 may be formed so as to flow from left to right as viewed from the front. Also, the axial blower 2
Instead of 0, another blower, for example, a centrifugal blower may be used. (10) The opening / closing door 5 may be opened leftward with the pivot portion being left when viewed from the front.

(11) The mounting structure of the drain pan 41 using the step portion 54 of the foot 50 may be applied to a refrigerator or the like using a refrigeration cycle having a normal compressor as a component.

[0045]

Since the present invention is configured as described above, it has the following effects. The present invention provides an insulating container for storing stored items at a predetermined temperature, and a partition formed outside the rear wall of the insulating container by covering a rear wall of the insulating container with a back cover, and further including an intake port and an exhaust port. An external chamber having a mouth, a Peltier element, a use-side heat exchange surface portion and a heat source side heat exchange surface portion, and a thermo module disposed on a rear wall of the heat insulating container so as to be able to maintain the inside of the heat insulating container at a predetermined temperature. A blower for circulating outside air inside the outside room, and the outside air introduced into the outside room, arranged to exchange heat with the heat source side heat exchange surface portion of the thermo module. In a storage provided with a heat sink arranged to exchange heat, the intake port and the exhaust port are provided on the left and right side portions of the outside chamber of the storage, so that the storage is close to the back and the wall surface of the building is close to the storage. Even if installed at Heat exchange between the heat sink and outside-compartment air can be carried out outside the room in the refrigerator outside air flow smoothly performed without being inhibited. In addition, the size of the storage space in the vertical direction is less restricted than the size in the horizontal direction, so that it is easy to increase the area of the air passage, the intake port, and the exhaust port in the outside room.

Further, according to the present invention, the heat insulating container is formed of an inner box made of a metal member, an outer box, and a heat insulating material injected between the inner box and the outer box. Since the use side heat exchange surface portion is disposed directly or via the heat transfer block so as to be able to conduct heat with the inner box,
The storage can be cooled or heated without providing a heat sink in the heat insulating container. Therefore, the structure of the storage is simplified. Further, since the heat sink is not provided in the heat insulating container, the effective use space in the heat insulating container is widened.

Further, according to the present invention, the rear corners of the left and right side surfaces of the outside chamber are formed so as to be inclined rearward toward the center in the left-right direction of the heat insulating container. There is a design effect that makes the depth feel small.

Further, in the present invention, preferably, the rear corners of the left and right side surfaces of the outer chamber are formed so as to be inclined rearward toward the center in the left-right direction of the heat insulating container. Since the upper and lower surfaces are formed so as to be inclined rearward toward the center in the vertical direction of the heat insulating container, there is a design effect that makes the depth of the storage box feel smaller. In addition, air passages to the intake port and the exhaust port are secured along the inclined surfaces of the upper and lower surfaces, so that the outside air can flow more smoothly in the outside room.

According to the present invention, the blower is an axial blower, and the axial blower is disposed so as to face an inclined surface formed on one of the side surfaces of the outside chamber. The depth dimension of the outside room can be made compact.

Further, according to the present invention, in the outside room,
An air flow path forming plate covering the heat sink so as to allow the outside air to flow through the heat sink, a power supply board on which a power supply circuit component device disposed above an upper surface of the air flow path forming plate is provided, and Since a protective cover is provided in cooperation with the upper surface of the airflow path forming plate and a communication hole is provided in the upper surface of the airflow path forming plate, the power supply board can be protected from overheating and adhesion of foreign matter. As a result, the reliability of the power supply board can be improved.

Further, the present invention provides a method of manufacturing
An airflow path forming plate that covers the heat sink so as to allow the outside air to flow through the heat sink, and a control board on which a control circuit component device disposed on the back of the back surface of the air path forming plate is provided. Since the storage space for the control board is formed by the back surface of the airflow path forming plate and the back cover, the control board can be protected from adhesion of foreign matter, and the reliability of the control board can be improved. Further, by removing the back cover, maintenance service of the control board can be easily performed.

The present invention also provides a heat insulating container for storing stored items at a predetermined temperature, an outer chamber partitioned and formed outside the rear wall of the heat insulating container and having an inlet port and an outlet port, a Peltier device, A thermo module comprising a use-side heat exchange surface portion and a heat source-side heat exchange surface portion, which is disposed on a rear wall of the heat insulating container so as to maintain the inside of the heat insulating container at a predetermined temperature, and circulates outside air into the outside room of the heat insulating container. A blower for causing the heat source side heat exchange surface portion of the thermo module to be exchanged with the heat source side, and arranged to exchange heat with the outside air introduced into the outside room. In a storage provided with a heat sink, the heat insulating container is formed by an inner box made of a metal member, an outer box, and a heat insulating material injected between the inner box and the outer box. The user side heat exchange A surface portion is disposed so as to be able to conduct heat to the inner box directly or via a heat transfer block, and a heat insulating sheet is attached to an inner surface of a contact portion of the rear wall of the inner box with the use side heat exchange surface portion. Therefore, the inside of the heat insulating container can be cooled or heated without providing a heat sink in the heat insulating container. Therefore, the structure is simplified,
The effective use space in the insulated container increases. In addition, the inner surface of the inner box with which the heat transfer block comes into contact is prevented from dew condensation, is not overcooled or overheated, and does not adversely affect stored items.

Further, according to the present invention, since the attaching portion of the heat insulating sheet on the inner surface of the inner box is a concave surface having substantially the same size as the heat insulating sheet, positioning of the heat insulating sheet at the time of applying the heat insulating sheet becomes easy. The efficiency of the pasting operation is improved.

The present invention is also directed to a storage having a cooling means for cooling the inside of the heat insulating container and a drain pan for receiving drain generated in the heat insulating container below the heat insulating container. , Four pedestals are provided so as to be arranged two each on the left and right as viewed from the front, and a step is provided on each of the four pedestals. Since the drain pan can be slidably mounted from the front in between, the drain pan can be easily taken in and out with a simple configuration.

Further, the present invention provides a heat insulating container for storing stored items at a predetermined temperature, an outside chamber partitioned and formed outside the rear wall of the heat insulating container and having an inlet port and an outlet port, a Peltier device, A thermo module comprising a use-side heat exchange surface portion and a heat source-side heat exchange surface portion, which is disposed on a rear wall of the heat insulating container so as to maintain the inside of the heat insulating container at a predetermined temperature, and circulates outside air into the outside room of the heat insulating container. A blower for causing the heat source side heat exchange surface portion of the thermo module to be exchanged with the heat source side, and arranged to exchange heat with the outside air introduced into the outside room. In a storage provided with a heat sink and a drain pan arranged below the heat insulating container to receive drain generated in the heat insulating container, the drain pan is extended rearward to below the outer chamber, and Since a ventilation hole for allowing a part of the outside air circulating in the outer chamber to flow from the extended portion of the drain pan to the upper surface of the drain pan is provided in the lower part of the outer chamber, the drain water in the drain pan is provided. Can be evaporated, and the labor for discarding drain water can be omitted.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a storage according to Embodiment 1 of the present invention as viewed from the front.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG. 2;

FIG. 4 is a rear view of the storage according to the first embodiment of the present invention.

FIG. 5 is a perspective view of the storage according to the first embodiment of the present invention viewed from the rear with a rear cover and a protective cover removed.

FIG. 6 is an exploded perspective view of the storage according to the first embodiment of the present invention.

FIG. 7 is a sectional view taken along line VII-VII in FIG. 2;

FIG. 8 is an explanatory diagram of a foot of a storage according to the first embodiment of the present invention.

FIG. 9 is a perspective view of a part A of FIG. 1 in an exploded state.

FIG. 10 is a sectional view taken along line XX in FIG.

FIG. 11 is a cross-sectional view corresponding to FIG. 10 with the open / close door opened.

FIG. 12 is a side view showing a part of a portion B in FIG. 1 as a cross-sectional view.

FIG. 13 is a perspective view of a lower body side hinge used in FIG.

FIG. 14 is a drawing of a portion B in FIG. 1 viewed from below with the opening / closing door opened.

FIG. 15 is a cross-sectional view corresponding to FIG. 3 of a back cover part of the storage according to the second embodiment of the present invention.

FIG. 16 is a sectional view corresponding to FIG. 3 of a back cover portion of a storage according to Embodiment 3 of the present invention.

FIG. 17 is a sectional view corresponding to FIG. 2 of the storage according to Embodiment 4 of the present invention.

FIG. 18 is a diagram showing a modification of the outer box of the storage according to each embodiment of the present invention.

FIG. 19 is a view showing a modification of the foot of the storage according to the first embodiment of the present invention.

[Explanation of symbols]

1 heat insulation container, 2 inner box, 2a heat insulation sheet, 3
Outer box, 10 Thermo module, 10a Peltier element 10b Use side heat exchange side, 10c Heat source side heat exchange side, 11 Heat transfer block, 12 Heat sink, 14 Back cover, 15 Inlet, 16 Exhaust port, 17 Communication hole, 18 Ventilation Hole, 20 axial blower, 31 control board, 32 power board, 33 protective cover, 41 drain pan, 50
Pedestal, 54 steps.

Claims (11)

[Claims] 1. A heat insulating container for storing stored items at a predetermined temperature, and a rear wall of the heat insulating container is covered with a back cover to form a partition outside the rear wall of the heat insulating container. A thermo-module comprising an outside chamber having an exhaust port, a Peltier element, a use-side heat exchange surface portion, and a heat source-side heat exchange surface portion, which is disposed on a rear wall of the heat insulating container so that the inside of the heat insulating container can be maintained at a predetermined temperature. A blower for circulating outside air in the outside room, and the outside air introduced into the outside room and arranged to exchange heat with the heat source side heat exchange surface of the thermo module. And a heat sink disposed so as to exchange heat with the heat sink, wherein the intake port and the exhaust port are provided on left and right side surfaces of the outside chamber. 2. The heat-insulating container is formed by an inner box made of a metal member, an outer box, and a heat-insulating material injected between the inner box and the outer box. The storage according to claim 1, wherein a surface portion is disposed so as to be able to conduct heat to the inner box directly or via a heat transfer block. 3. A rear corner of the left and right side surfaces of the outside chamber,
The storage according to claim 1, wherein the storage is formed so as to be inclined rearward toward the center in the left-right direction of the heat-insulating container. 4. The storage according to claim 1, wherein the upper and lower surfaces of the outer chamber are formed so as to be inclined rearward toward the center in the vertical direction of the heat insulating container. . 5. The air blower according to claim 1, wherein the blower is an axial blower, and the axial blower is disposed so as to face an inclined surface formed on one side surface of the outside chamber. Item 4. The storage according to Item 3. 6. An air flow path forming plate that covers the heat sink so as to allow air outside the air path to flow through the heat sink, and a power supply circuit component disposed above an upper surface of the air path forming plate. A power supply board is provided, and a protective cover for covering the power supply board in cooperation with an upper surface of the air path forming plate is provided, and a communication hole is provided in the upper surface of the air path forming plate. The storage according to claim 1, wherein 7. An air flow path forming plate that covers the heat sink so as to allow air outside the air path to flow through the heat sink in the outside chamber, and a control circuit configuration disposed on a back side of a back portion of the air path forming plate. 7. The storage according to claim 1, further comprising a control board on which devices are arranged, wherein a storage room for the control board is formed by a back surface of the air path forming plate and the back cover. 8. An insulated container for storing stored items at a predetermined temperature, an outer compartment partitioned and formed outside the rear wall of the insulated container and having an intake port and an exhaust port, a Peltier element, and use-side heat exchange. A thermo module comprising a surface portion and a heat source side heat exchange surface portion, the thermo module being disposed on a rear wall of the heat insulating container so as to maintain the inside of the heat insulating container at a predetermined temperature, and a blower for circulating outside air inside the outside room And a heat sink arranged to exchange heat with the heat source side heat exchange surface portion of the thermo module and arranged to exchange heat with the outside air introduced into the outside chamber. In the storage, the heat insulation container, an inner box made of a metal member,
It is formed by an outer box and a heat insulating material injected between the inner box and the outer box, and the use-side heat exchange surface portion of the thermo module can transfer heat to the inner box directly or through a heat transfer block. And a heat insulating sheet attached to an inner surface of a rear wall of the inner box, which is in contact with the use-side heat exchange surface. 9. The storage according to claim 8, wherein a portion where the heat insulating sheet is attached on the inner surface of the inner box has a concave surface having substantially the same size as the heat insulating sheet. 10. A storage provided with a cooling means for cooling the inside of the heat insulating container and a drain pan for receiving drain generated in the heat insulating container below the heat insulating container. And four feet are provided so as to be arranged two each on the left and right sides, and a step is provided on each of the four feet, and the drain pan is provided between the step and the bottom surface of the heat insulating container. Storage that can be mounted from the front in a sliding manner. 11. An insulated container for storing stored items at a predetermined temperature, an outer chamber partitioned and formed outside a rear wall of the insulated container and having an intake port and an exhaust port, a Peltier element, and use side heat exchange. A thermo module comprising a surface portion and a heat source side heat exchange surface portion, the thermo module being disposed on a rear wall of the heat insulating container so as to maintain the inside of the heat insulating container at a predetermined temperature, and a blower for circulating outside air inside the outside room A heat sink arranged to exchange heat with the heat source side heat exchange surface portion of the thermo module, and arranged to exchange heat with the outside air introduced into the outside chamber; A storage pan comprising a drain pan arranged below the heat insulating container to receive drain generated in the heat insulating container,
Extending the drain pan backward to below the outside chamber,
Ventilation holes for allowing a part of the outside air circulating in the outside room to flow from the extended portion of the drain pan to the upper surface of the drain pan are provided in a lower surface portion of the outside room. Storage.