JP2001116416A - Warm and cold storage cabinet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contain components capable of being cooled or heated in a decided space in a cover without reducing a cooling or heating performance in a cold and warm storage cabinet of a portable type convenient to carry to contain an article such as food and drink, pharmaceutical preparation or the like by using an electronic element utilizing a Peltier effect capable of simply cooling or heating with a light weight. SOLUTION: Either an outside heat exchanger 18 and a fan 19 or both are obliquely disposed in a fixed space in a unit cover 17, and contained in the space.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator for storing articles such as foods and drinks and pharmaceuticals, and more particularly to a structure for achieving compactness and power saving.

[0002]

2. Description of the Related Art In recent years, refrigerated refrigerators are lightweight and easy to cool.
Using an electronic element using the Peltier effect that can be heated,
A portable type that is easy to carry has been developed.

[0003] As a conventional cold storage of this type, there is one disclosed in Japanese Patent Application Laid-Open No. Hei 8-100975.

[0004] Hereinafter, the above-mentioned conventional cold storage will be described with reference to the drawings.

FIG. 10 is a sectional view of a conventional cold storage. In FIG. 10, reference numeral 1 denotes a refrigerator main body. A heat insulating material 4 is provided between an outer box 2 having an opening and an inner box 3 having an opening.
Is filled, and a lid 5 with a heat insulating material that opens and closes at the opening is installed.
A hole 6 is formed by cutting the side of the outer box 2 down to the heat insulating material 4, and a finned heat transfer device 8 having a built-in electronic element 7 is inserted into the entire hole 6, and the electronic element 7 side is fixed to the inner box 3. The periphery of the hole 6 is sealed. A motor-driven fan 11 is attached to a cover 10 that covers the fins 9 of the finned heat transfer device 8 that has come out of the outer case 2.

[0006] The operation of the cold storage constructed as described above will be described below.

First, when a current is applied to the electronic element 7, one end face is cooled or heated in accordance with the direction of the current flow, and heat is conducted to the inner box 3 to which the electronic element 7 is fixed to cool or heat the inner box 3. You. The finned heat exchanger 8 is also heated or cooled on the opposite side of the inner box 3 surface, and transfers heat to the fins 9. Next, the space of the inner box 3 is cooled or heated by exchanging heat between the fins 9 and the air by the fan 11.

[0008]

However, in the above-mentioned conventional structure, the fins 9 protruding from the outer case 2 in the cover 10 and the fan 11 for sending air to the fins 9 overlap, so that the space of the cover 10 becomes large. There were drawbacks.

[0009] The present invention solves the conventional problems.
An object of the present invention is to provide a cold / hot storage that can store components that can be cooled or heated in a predetermined space in a cover without deteriorating the cooling or heating performance.

In addition, the above-mentioned conventional configuration has a drawback that the air hits the fins 9 in the cover 10 from one direction by the fan 11 and diffuses around the fins 9 so that the fins 9 cannot be exhausted from the cover 10 collectively.

Another object of the present invention is to efficiently cool or heat by convection of air in one direction.

Further, the above-mentioned conventional configuration has a drawback that the control parts are covered with a case and the number of parts is large.

Another object of the present invention is to prevent the control parts from being splashed with water even if the protection parts are simplified, and to maintain the quality.

In addition, the above-mentioned conventional construction has a disadvantage that the heat insulating material 4 is filled with a urethane foam material and has poor heat insulating performance. Further, the vacuum heat insulating material having good heat insulating performance has a drawback that the heat leak from the gap is larger than that of the combination of the vacuum heat insulating material and the corner butting.

Another object of the present invention is to utilize a vacuum heat insulating material having good heat insulating performance while reducing heat leakage from corner gaps.

[0016]

SUMMARY OF THE INVENTION To achieve this object, the present invention is directed to a method of forming a unit cover in which one or both of a heat exchanger and a fan are inclined, and convection in the unit cover is reduced. An air intake hole below and a discharge hole to release heat above provide one-way convection.The connection terminal of the motor stator for the pump, which has electrical connection, faces downward. A guide plate having a hole with a flange that is inclined with respect to the component and is shifted from the discharge hole of the unit cover is used, and the heat insulating material is a combination of a plurality of corner portions of vacuum heat insulating material.

As a result, parts can be stored in a fixed space, efficient heat transfer can be achieved by one-way convection, the number of parts can be reduced, and the quality of electric parts can be maintained. Heat leak from the part can be reduced.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a body case having an opening, a lid member for opening and closing the opening of the body case, and a heat conduction container having an opening provided inside the body case. A heat insulating material buried in the space between the main body case and the heat conduction container, an inner heat exchanger for cooling or heating the heat conduction container, and an outer heat exchanger for cooling or radiating heat from the inner heat exchanger, A fan, a control component, and a unit cover for covering the outer heat exchanger, the fan, and the control component. Either or both of the outer heat exchanger and the fan are placed in a predetermined space in the unit cover. They are arranged obliquely to the direction of gravity.

By disposing one or both of the outer heat exchanger and the fan obliquely, the fan can be accommodated in a fixed space.

Further, the unit cover is provided with an air intake hole below, and a discharge hole above the upper side to discharge heat of the outer heat exchanger.

The air is convected in one direction by the lower air intake hole and the upper discharge hole provided in the unit cover.

The inner heat exchanger includes an electronic element, a pump, and a pump motor stator, and a connection terminal of the pump motor stator is provided in a downward direction.

By providing the connection terminal portion of the pump motor stator downward, it is possible to prevent failure of electric components due to splashing water or the like.

In the unit cover, a discharge hole above the unit cover, a control component, and a guide plate which is provided below the discharge hole and covers the upper portion of the control component and is inclined, are provided directly below the discharge hole on the guide plate. An upwardly protruding flanged hole is formed at a position shifted therefrom.

The upper part of the control component is covered by a guide plate having a flanged hole projecting upward at an inclined position displaced from immediately below the discharge hole. This prevents a failure of the control component.

Also, a main body case having an opening, a lid member for opening and closing the opening of the main body case, a container having an opening disposed inside the main body case, and a space between the main body case and the container And a plurality of the vacuum heat insulating materials are combined in the same wall by changing the outer dimensions of the plurality of vacuum heat insulating materials and providing a step at corner joints with the vacuum heat insulating material of the other wall.

By combining a plurality of vacuum heat insulating materials with a step at the corner, heat leakage from the joint can be reduced.

[0028]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a refrigerator according to the present invention will be described below with reference to the drawings. The same components as those in the related art are denoted by the same reference numerals, and detailed description is omitted.

(Embodiment 1) FIG. 1 is a perspective view of a main body of a cold storage according to Embodiment 1 of the present invention. FIG. 2, FIG. 3, FIG.
FIG. 3 is a sectional view of the refrigerator storage of the embodiment.

1, 2, 3, and 4, reference numeral 12 denotes a refrigerator main body, and a main body case 13 having an opening at an upper portion.
And a lid member 14 for opening and closing the opening of the main body case 13,
A heat conduction container 15 having an opening at an upper portion disposed inside the main body case 13, an inner heat exchanger 16 for cooling or heating the heat conduction container 15, and a height provided on a side surface of the main body case 13; A unit cover 17 having the same width, an outer heat exchanger 18 for cooling or heating the heat from the inner heat exchanger 16 in the space of the unit cover 17, a fan 19 driven by a motor or the like, and a control component 20 Have.

The main body case 13 is formed of a painted iron plate or the like. The main body case 13 is provided between the main body case 13 and the heat conduction container 15 except for the portion where the inner heat exchanger 16 is provided.
A heat insulating material 21 is embedded. The heat conduction container 15 is formed of a material having a high heat conductivity such as aluminum.

The cover member 14 has a box and a cover formed of a painted iron plate or the like. The cover heat insulating material 22 is buried in the space, and is installed above the main body case 13.
An elastic member is fixed to the outer periphery of the lower surface of the lid member 14.

The inner heat exchanger 16 comprises an electronic element 23 capable of utilizing the Peltier effect, a pump 25 for circulating a brine 24 of a heat medium for exchanging heat of the electronic element 23, and a motor 26 for driving the pump 25. Electronic element 23
The pump 25 and the motor 26 are protruded into the space of the hole 27 in which the heat insulating material 21 is hollowed out, a part of the main body case 13 and the unit cover 17. The hole 27 which cuts out the heat insulating material 21 and the pump 2
The space around 5 is insulated with a heat insulating material and the gap is sealed. One end surface of the electronic element 23 is cooled or heated in accordance with the direction of current flow. The current flowing through the electronic element 23 can be forward / reverse converted by a switch or the like.

The unit cover 17 is formed to have the same outer shape as the main body case 13 by a painted iron plate or the like, and the inside of the unit cover 17 is positioned side by side with the outer heat exchanger 18, the pump 25 and the motor 26 from below. The fan 19 is arranged in the order of the control component 20, and one or both of the outer heat exchanger 18 and the fan 19 are inclined at an angle to the direction of gravity. Outer heat exchanger 18, pump 25, motor 26, fan 1
9 is separated by a partition plate 28, and the partition plate 28 is a fan 1
It has nine convection holes. The outer heat exchanger 18 is formed by attaching a heat radiating plate such as aluminum to a copper pipe or the like.
6 and a pipe 29 connected to circulate the brine 24.

The operation of the cold storage constructed as described above will be described below.

First, the unit cover 17 having a fixed height is set.
If one or both of the outer heat exchanger 18 and the fan 19 are installed at an angle, the outer heat exchanger 18
And minimizing lateral overhang of the fan 19, ensuring a clearance between the outer heat exchanger 18, the fan 19 and the control component 20 in the height direction, and cooling or heating air of the outer heat exchanger 18 From the heat exchanger 18 to the pump 25 and the motor 26, the partition plate 28, and then the fan 19 to the control component 2
Convection to zero.

As described above, the cold and hot storage of this embodiment is such that the fan 19 is arranged in the unit cover 17 from the bottom in the side by side with the outer heat exchanger 18, the pump 25 and the motor 26, and then the control component 20. It is comprised from having been arranged in order of
Since one or both of the outer heat exchanger 18 and the fan 19 are installed obliquely with respect to the direction of gravity, the outer heat exchanger 18 and the fan 19 can be accommodated in a fixed space, and the dimension in the thickness direction can be reduced.

Further, the cold and hot storage of the present embodiment includes an outer heat exchanger 18 and a pump 2 in a unit cover 17 from below.
5, the fan 19 is arranged in a position side by side with the motor 26, and then the control component 20 is arranged in this order. Either or both of the outer heat exchanger 18 and the fan 19 are installed obliquely. Thus, a convection air path for cooling or heating can be secured.

(Embodiment 2) FIG. 4 is a sectional view of a cold storage according to Embodiment 2 of the present invention.

The same configuration as in the previous embodiment is
The same reference numerals are given and the detailed description is omitted.

In FIG. 4, reference numeral 17 denotes a unit cover.
The air intake hole 30 is located below and the outer heat exchanger 18 is located above.
A discharge hole 31 for discharging the cooled or heated heat of the fan 19 with the fan 19 is formed.

The operation of the cold storage constructed as described above will be described below.

First, when the air intake hole 30 is provided below the unit cover 17 and the discharge hole 31 is provided above the unit cover 17, when the fan 19 driven by a motor or the like is operated, the air intake hole 30 below the unit cover 17 is opened. Air flows into the pump 25 and the motor 26 from the outer heat exchanger 18.
Finally, the cooling or heating air is discharged from the partition plate 28 and then from the fan 19 to the control component 20 to the discharge hole 31 to convection in one direction.

As described above, the cold and hot storage of this embodiment is such that the fan 19 is placed in the unit cover 17 from the bottom in the side-by-side relationship with the outer heat exchanger 18, the pump 25 and the motor 26, and then the control component 20. It is comprised from having been arranged in order of
Since the air intake hole 30 is provided below the unit cover 17 and the discharge hole 31 is provided above the unit cover 17, it is possible to efficiently replace the heat of cooling or heating with the introduced air.

(Embodiment 3) FIG. 4 is a sectional view of a cold storage according to a third embodiment of the present invention.

Note that, for the same configuration as the previous embodiment,
The same reference numerals are given and the detailed description is omitted.

In FIG. 4, reference numeral 25 denotes a pump, in which a rotor of a motor 26 is built, and a pump motor stator 33 integrated with an electric connection terminal 32 downward is mounted.
Is composed.

The operation of the cold and hot storage constructed as described above will be described below.

First, when a current is applied to the winding of the pump motor stator 33 through the connection terminal 32, the pump 25
Is driven, and the brine 24 of the heat medium is circulated between the outer heat exchanger 18 and the outer end face of the electronic element 23 through the pipe 29 to cool or heat the heat transfer container 15. The connection terminal 32 is turned downward so as to continuously perform these operations, and the water accumulation in the connection terminal 32 is prevented.

As described above, in the refrigerator of the present embodiment, the electric connection terminals 32 in the pump motor stator 33 are directed downward, so that poor electrical connection can be prevented.

(Embodiment 4) FIGS. 5 and 6 are cross-sectional views of a cold storage according to a fourth embodiment of the present invention.

Incidentally, for the same configuration as the previous embodiment,
The same reference numerals are given and the detailed description is omitted.

5 and 6, reference numeral 34 denotes a guide plate.
The upper surface is inclined, and a flanged hole 35 protruding upward is formed on the inclined surface. A guide plate 34 is provided in the unit cover 17 with a flanged hole 35 protruding upward.
Is provided at a position shifted from immediately below the discharge hole 31 of the unit cover 17, and is further installed so as to cover the upper part of the control component 20 therebelow.

The operation of the cold and hot storage constructed as described above will be described below.

First, the upper surface is inclined in the unit cover 17, and the flanged hole 3 protruding upward on the inclined surface.
In the case where the guide plate 34 on which the guide plate 5 is formed is attached, water droplets entering from the discharge hole 31 of the unit cover 17 fall on the inclined surface due to a displacement between the flanged hole 35 of the guide plate 34 and the discharge hole 31 and have a flange. The side surface of the flange of the hole 35 falls along the slope from the end of the guide plate 34 to prevent water from splashing on the control component 20.

As described above, the refrigerator of the present embodiment is provided with the discharge holes 31 of the unit cover 17 inside the unit cover 17.
A guide plate 34, and a flanged hole 35 projecting upward at a position where the guide plate 34 is displaced from immediately below the discharge hole 31 of the unit cover 17. Since the surface of the flanged hole 35 is inclined, it is possible to prevent water from splashing on the electric components with a small number of components.

The refrigerating and refrigerating cabinet of the present embodiment is constructed by disposing the discharge holes 31 of the unit cover 17, the guide plate 34, and the control component 20 in the unit cover 17 in this order. Since the upwardly protruding flanged hole 35 is provided in 34, convection of the cooled or heated air can be ensured.

(Embodiment 5) FIGS. 7, 8 and 9 are cross-sectional views of a cold storage according to a fifth embodiment of the present invention.

Note that, for the same configuration as the previous embodiment,
The same reference numerals are given and the detailed description is omitted.

In FIGS. 7, 8 and 9, reference numeral 36 denotes a vacuum heat insulating material which is obtained by placing a plate-shaped styrofoam having simultaneous cells in a plastic film bag and vacuum-sealing the bag. Conventionally, in general, the thermal conductivity of the urethane-integrated foam material is 0.023 W / (m · ° C.), whereas the thermal conductivity of the vacuum heat insulating material 36 is 0.007 W / (m · ° C.). A body case 13 using a material such as a painted iron plate, a plastic sheet material containing glass fiber, or a plastic molding material, and a material having high thermal conductivity such as aluminum, a plastic sheet material containing glass fiber, or plastic. A vacuum heat insulating material 36 in which a plurality of plate-shaped sheets having different outer dimensions for each wall are overlapped with a container 37 using a molding material, and the inner heat exchanger 16 is partially hollowed out. A heat insulating material with holes 38 made of a material such as styrene foam and a heat insulating piece 39 made of a material such as styrofoam are buried in portions and the like in a screw mounting portion to form a heat insulating box.

The operation of the cold / hot storage constructed as described above will be described below.

First, when a plurality of vacuum heat insulating materials 36 having different external dimensions are buried in each wall, the corner seam of the wall is a combination of the vacuum heat insulating materials 36 with a step, and the seam of the joint is formed. Increase the number of bends and increase the edge distance.

As described above, the refrigerator of the present embodiment comprises a main body case 13 made of a material such as a painted iron plate, a plastic sheet material containing glass fiber or a plastic molding material, and a heat conductive material such as aluminum. A vacuum heat insulating material 36 in which a plurality of plate-like sheets having different outer dimensions for each wall are stacked between a high-rate material, a plastic sheet material containing glass fiber, or a container 37 using a plastics molding material. In a part of the hollowed portion where the inner heat exchanger 16 is provided, a heat insulating material 38 having a hole made of a material such as styrofoam, and a heat insulating piece 39 made of a material such as styrofoam for a screw attaching portion. Are embedded, and the edge distance of the corner joint of the vacuum heat insulating material 36 is increased, so that heat leak from the joint can be reduced.

[0064]

As described above, according to the present invention, one or both of the outer heat exchanger and the fan are installed obliquely, so that they can be accommodated in a fixed space and have a smaller thickness in the thickness direction. In addition, a convection air path for cooling or heating can be secured, and as a result, downsizing can be achieved.

Further, since an air intake hole is provided below the unit cover and a discharge hole is provided above the unit cover, it is possible to efficiently replace the heat of cooling or heating with the introduced air, thereby achieving power saving. It becomes possible.

In addition, since the electric connection terminals in the pump motor stator are directed downward, it is possible to prevent poor electric connection.

Since the guide plate is provided with the flanged hole projecting upward, convection of the cooled or heated air can be ensured.

Further, since the edge surface distance of the corner joint portion of the vacuum heat insulating material is increased, heat leak from the joint portion can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main body of a first embodiment of a refrigerator according to the present invention.

FIG. 2 is a cross-sectional view of the refrigerator of the embodiment.

FIG. 3 is a cross-sectional view of the refrigerator of the embodiment.

FIG. 4 shows the same embodiment and Embodiments 2 and 3 according to the present invention.
Cross section of cold storage room

FIG. 5 is a sectional perspective view of Embodiment 4 of the refrigerator according to the present invention;

FIG. 6 is a cross-sectional view of the refrigerator of the embodiment.

FIG. 7 is a sectional view of Embodiment 5 of the refrigerator according to the present invention;

FIG. 8 is a cross-sectional view of the refrigerator of the embodiment.

FIG. 9 is a cross-sectional view of the refrigerator of the embodiment.

FIG. 10 is a cross-sectional view of a conventional refrigerator storage.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 13 Main body case 14 Cover member 15 Heat conduction container 16 Inner heat exchanger 17 Unit cover 18 Outer heat exchanger 19 Fan 20 Control part 21 Insulation material 23 Electronic element 25 Pump 30 Air intake hole 31 Discharge hole 32 Connection terminal 33 Motor stator 34 Guide plate 35 Hole with flange 36 Vacuum insulation material 37 Container

Claims (5)

[Claims] 1. A main body case having an opening, a lid member for opening and closing the opening of the main body case, a heat conduction container having an opening provided inside the main body case, a main body case and heat conduction A heat insulating material buried in the space with the container, an inner heat exchanger for cooling or heating the heat conducting container, an outer heat exchanger for cooling or radiating heat from the inner heat exchanger, and a fan,
It comprises a control component, an outer heat exchanger, a fan, and a unit cover for covering the control component. One or both of the outer heat exchanger and the fan are arranged obliquely in a predetermined space in the unit cover. Cold storage room. 2. The refrigerator according to claim 1, wherein the unit cover has an air intake hole below and a discharge hole above the upper surface to discharge heat of the outer heat exchanger. 3. The pump according to claim 1, wherein the inner heat exchanger includes an electronic element, a pump, and a pump motor stator, and a connection terminal portion of the pump motor stator is provided downward. Refrigerated storage as described. 4. In the unit cover, a discharge hole at an upper portion of the unit cover, a control component, and a guide plate provided below the discharge hole and covering an upper portion of the control component and inclined are provided. 2. The refrigerator according to claim 1, wherein an upwardly protruding flanged hole is formed at a position shifted from immediately below. 5. A main body case having an opening, a lid member for opening and closing the opening of the main body case, a container having an opening disposed inside the main body case, and a space between the main body case and the container. A refrigerator having a plurality of vacuum heat insulators embedded in the same wall, wherein a plurality of the vacuum heat insulators are respectively formed in the same wall, the outer dimensions of the vacuum heat insulators are different from each other, and the vacuum heat insulators are combined with steps at corner joints.