JPH10300307A - Thermoelectric module type electric refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To freely install a refrigerator body in a longitudinal or lateral direction by forming first and second ground contact surfaces on the outer surface of the body, installing the body in the longitudinal or lateral direction, and inclining the installation attitude of a cooling heat exchanger to either of the first and second ground contact surfaces. SOLUTION: Rubber legs 74 are provided at both the front sides of a bottom wall 62. The legs 74 and a pair of rollers are brought into contact with a ground to constitute a first ground contact surface P so that a refrigerant body 1 can be installed in a longitudinal direction. And, rubber legs 75 are provided at four positions of the corners of a right side wall 64, and brought into contact with the ground to constitute a second ground surface Q so that the body 1 can be installed in a lateral direction. Further, the installation attitude of a coil cooler for constituting a cooling heat exchanger 20 is inclined to either of first and second ground contact surfaces P, Q.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thermoelectric module type electric refrigerator for cooling the inside of a refrigerator using a thermoelectric member such as a Peltier element.

[0002]

2. Description of the Related Art A technique using a Peltier element in a refrigeration system is disclosed in Japanese Patent Publication No. 6-504361. This technology forms a thermoelectric heat exchange block in which a circulation path for circulating heat exchange water is thermally coupled to each of the heat dissipation surface and the cooling surface of the Peltier element, and the thermoelectric heat exchange block is connected to the circulation path thermally coupled to the cooling surface of the Peltier element. The target object is cooled by cooling in the mounted heat exchanger, or the target object is warmed by heat radiation in a heat exchanger interposed in a circulation path thermally coupled to the heat radiation surface of the Peltier element.

[0003] Such a thermoelectric module type electric refrigerator is used in a car such as a camper because of its light weight and compactness, and is used in a hospital room or a hotel room because of its quietness.

[0004]

Generally, a thermoelectric module type electric refrigerator is formed in a vertically long rectangular parallelepiped shape like an ordinary electric refrigerator. However, when this is mounted on an automobile such as a camping car, vibrations during traveling are caused. There is a problem of instability. In addition, there is a case where it is desired to mount the thermoelectric module type electric refrigerator in a horizontally long state in relation to the shape of the cabin space of an automobile and other mounted objects.

The present invention has been developed mainly to solve the above problems, and has as its object to provide a thermoelectric module type electric refrigerator in which a refrigerator main body can be freely installed in any of vertical and horizontal directions. .

Another object of the present invention is to provide a thermoelectric module type electric refrigerator which can be freely installed in any of the vertical and horizontal directions, and solves the problem of defrost water treatment and the problem of reduced circulation pump performance. And

[0007]

According to a first aspect of the present invention, there is provided a thermoelectric module type electric refrigerator in which a first heat exchange portion thermally coupled to a heat radiation surface of a thermoelectric member and a cooling surface of the thermoelectric member are thermally coupled. A thermoelectric heat exchange block formed with a second heat exchange unit; a first circulation pump, a heat radiation heat exchanger, and a first heat exchange unit of the thermoelectric heat exchange block form a first circulation path; And a cooling liquid is filled therein to form a heat radiation system, and a second circulation path is formed by a second circulation pump, a cooling heat exchanger, and a second heat exchange section of the thermoelectric heat exchange block. The interior is filled with a liquid for refrigerant to form an endothermic system,
In a thermoelectric module type electric refrigerator configured to cool the inside of the refrigerator main body by heat exchange between the heat absorbing cooling heat exchanger and the air inside the refrigerator main body, the thermoelectric module-type electric refrigerator has a position orthogonal to the outer surface of the refrigerator main body. A first ground plane and a second ground plane are formed so that the refrigerator main body can be installed in both the vertical and horizontal directions, and the installation posture of the cooling heat exchanger is determined by the first ground plane and the second contact plane. It is characterized by being inclined with respect to any of the ground.

According to the first aspect of the invention, the refrigerator main body can be arbitrarily selected for use in both the vertical and horizontal directions, and the cooling heat exchanger can be installed in a posture in which the first ground plane is used as the ground plane. When the refrigerator is used with the second contact surface as the contact surface, the defrost water is inclined by its own weight because it is inclined with respect to the contact surface (horizontal surface).
It flows down smoothly along the cooling heat exchanger and is removed from the cooling heat exchanger. Therefore, it is possible to prevent the problem that the defrost water adheres and remains on the cooling heat exchanger and freezes again to lower the heat exchange efficiency.

A thermoelectric module-type electric refrigerator according to a second aspect of the present invention includes a first heat exchange section thermally coupled to a heat radiation surface of a thermoelectric member and a second heat exchange section thermally coupled to a cooling surface of the thermoelectric member. A first circulating pump, a radiating heat exchanger, and a first heat exchanging section of the thermoelectric heat exchanging block, forming a first circulating path, and a refrigerant therein. A second circulating pump, a heat exchanger for cooling, and a second heat transfer block of the thermoelectric heat exchange block.
A second circulation path is formed with the heat exchange part of the above, and the inside thereof is filled with a refrigerant liquid to form a heat absorbing system, and heat exchange between the heat exchanger for cooling the heat absorbing system and the air in the refrigerator main body is performed. In the thermoelectric module type electric refrigerator configured to cool the inside of the refrigerator main body, a first ground plane and a second ground plane that are orthogonal to each other are formed on the outer surface of the refrigerator main body. In addition to enabling installation in both vertical and horizontal directions, drain receivers for receiving defrost water from the cooling heat exchanger are provided along two sides of the cooling heat exchanger, and the refrigerator body is installed on the first ground plane. In any case, the defrosted water from the cooling heat exchanger can be received regardless of whether it is installed on the second ground plane.

According to the second aspect of the present invention, the installation of the refrigerator main body in both the vertical and horizontal directions can be arbitrarily selected and used, and even if the refrigerator main body is installed in any of the vertical and horizontal directions, defrosting from the cooling heat exchanger can be performed. The water can be received by the drain receiver, and the occurrence of inconvenience in the defrost water treatment can be prevented.

The thermoelectric module type electric refrigerator according to the third invention of the present application is a first heat exchange unit thermally coupled to a heat radiation surface of a thermoelectric member and a second heat exchange unit thermally coupled to a cooling surface of the thermoelectric member. A first circulating pump, a radiating heat exchanger, and a first heat exchanging section of the thermoelectric heat exchanging block, forming a first circulating path, and a refrigerant therein. A second circulating pump, a heat exchanger for cooling, and a second heat transfer block of the thermoelectric heat exchange block.
A second circulation path is formed with the heat exchange part of the above, and the inside thereof is filled with a refrigerant liquid to form a heat absorbing system, and heat exchange between the heat exchanger for cooling the heat absorbing system and the air in the refrigerator main body is performed. In the thermoelectric module type electric refrigerator configured to cool the inside of the refrigerator main body, a first ground plane and a second ground plane that are orthogonal to each other are formed on the outer surface of the refrigerator main body. The evaporating dish into which water from the drain receiver is guided can be installed in both the vertical and horizontal directions, and a first water sump part substantially parallel to the first ground plane and a second pool substantially parallel to the second ground plane can be provided. Are connected to each other to form an L-shape.

[0012] According to the third aspect of the invention, it is possible to arbitrarily select and use the refrigerator main body in both the vertical and horizontal directions, and even if the refrigerator main body is installed in any of the vertical and horizontal directions, water from the drain receiver is transferred to the evaporating dish. It can be introduced without overflowing, and it is possible to prevent inconvenience in drain water treatment from occurring.

A thermoelectric module-type electric refrigerator according to a fourth invention of the present application is characterized in that, in the third invention, a water absorbing substance is semi-buried in the evaporating dish.

According to the fourth aspect of the invention, in addition to the function and effect of the third aspect of the invention, it is possible to enhance the ability of drain water to evaporate by the capillary action of the water-absorbing substance, thereby improving the ability to cool the heat-dissipating heat exchanger. By retaining the water in the evaporating dish with the water-absorbing substance, it is possible to prevent the water in the evaporating dish from scattering even when the installation posture of the refrigerator main body is changed from one in the vertical and horizontal directions to the other.

According to a fifth aspect of the present invention, there is provided a thermoelectric module type electric refrigerator, comprising: a first heat exchange portion thermally coupled to a heat radiation surface of a thermoelectric member; and a second heat exchange portion thermally coupled to a cooling surface of the thermoelectric member. A first circulating pump, a radiating heat exchanger, and a first heat exchanging section of the thermoelectric heat exchanging block, forming a first circulating path, and a refrigerant therein. A second circulating pump, a heat exchanger for cooling, and a second heat transfer block of the thermoelectric heat exchange block.
A second circulation path is formed with the heat exchange part of the above, and the inside thereof is filled with a refrigerant liquid to form a heat absorbing system, and heat exchange between the heat exchanger for cooling the heat absorbing system and the air in the refrigerator main body is performed. In the thermoelectric module type electric refrigerator configured to cool the inside of the refrigerator main body, a first ground plane and a second ground plane that are orthogonal to each other are formed on the outer surface of the refrigerator main body. The first circulating pump and the second circulating pump extend from the pump body in a direction obliquely upward with respect to both the first ground plane and the second ground plane. An air vent chamber is provided.

According to the fifth aspect of the invention, the installation of the refrigerator main body in both the vertical and horizontal directions is arbitrarily selected and used, and the first and second circulation paths are formed regardless of whether the refrigerator main body is installed in any of the vertical and horizontal directions. The air in the circulating liquid can be extracted from the first and second circulating pumps to the air bleeding chamber extending obliquely upward from the pump body.
The liquid can be smoothly circulated through the circulation path.

The first to fifth inventions can be combined with each other.

Further, according to the first invention to the fifth invention, when the refrigerator main body is grounded with the first grounding surface as a grounding surface, the refrigerator main body has a vertically long shape having a plurality of vertically divided storage rooms. In each of the compartments, an extractor for storing articles is stored. Each of the compartments has a substantially square cross-sectional shape, and the extractor for storing articles is connected to the first grounding surface and the second grounding surface. In any case where the refrigerator main body is installed as the ground, it is suitable to apply to a thermoelectric module type electric refrigerator which is formed so as to be located in each compartment so as to be located above.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a representative embodiment of the present invention will be described with reference to the accompanying drawings.

In this embodiment, as shown in FIGS. 1 and 5,
Modularized Peltier device 2 as an example of a thermoelectric member
The thermoelectric heat exchange block 11 is formed by integrally forming a first heat exchange portion 26a thermally coupled to the heat radiation surface of the Peltier element 5 and a second heat exchange portion 26b thermally coupled to the cooling surface of the Peltier element 25.
(Only the thermoelectric heat exchange block 11 is shown in FIG. 1.) This is a thermoelectric modular electric refrigerator of a refrigeration cycle system.

As shown in FIGS. 1 and 4, the refrigerator of the present embodiment has a vertically long, substantially rectangular parallelepiped refrigerator main body 1 and a compartment 2a formed in the refrigerator main body 1 in two vertical stages.
2b. Both of the extracted articles 3, 3 for storing articles are formed identically, have a square front plate 51, and have an article storage box 52 formed of a punched metal plate. Front panel 5
As shown in FIG. 1, when the extractor 3 for storing articles is stored in the refrigerator main body 1, it is formed into a shape that seals the front openings of the compartments 2 a and 2 b, Has a heat insulating material 53. As shown in FIGS. 1 and 4, the article storage box 52 is formed in a substantially rectangular parallelepiped shape that is open upward, and is provided with a punching hole 54 on the entire surface including the bottom surface, and has air permeability. Also, guide plates 55, 55 extending back and forth are provided at intermediate height positions on both side surfaces of the article storage box 52, and rear wheels 56, 56 are provided on both sides at the rear end of the bottom surface.

The article storage room 2 of the refrigerator body 1 has a separation wall 5
The upper and lower compartments 7 are provided with two compartments 2a and 2b as described above. The separation wall 57 is formed in a U-shape in plan view, and the two compartments 2a,
A space 58 is provided for communicating 2b, and a front portion 59 of the space 58 is configured to be in contact with the front plate 51 of each of the extracted and stored articles. A heat insulating material 60 is also provided inside the separation wall 57.

The basic structural wall of the refrigerator body 1 is a ceiling wall 6
1, bottom wall 62, left and right side walls 63, 64 and back wall 65
, And a heat insulating material 60 is provided therein.

The interior 69 surrounded by these basic structural walls 61 to 65 is divided into a front article storage room 2 and a rear cooling room 68 by a partition wall 67 erected near the rear wall 65. ing. As described above, the article storage room 2 is divided into two-stage division storage rooms 2a and 2b by the separation wall 57.

A heat radiating chamber 70 is provided behind the rear wall 65, and a rear cover 71 is provided so as to surround the heat radiating chamber 70. The back cover 71 is provided on the ceiling wall 6.
1, the bottom wall 62 and the left and right side walls 63, 64. Rollers 72 are provided on both sides at the bottom of the rear cover 71,
At the top, a handle rod 73 is disposed at the top, so that the refrigerator can be easily moved.

As shown in FIGS. 1, 2 and 3, the refrigerator main body 1 has the bottom wall 62 as a first ground plane P, and the right side wall 64 as a second ground plane Q, and has both vertical and horizontal directions. It is configured so that it can be installed in any of them. More specifically, rubber legs 74 are provided on both front sides of the bottom wall 62,
A first grounding surface P is provided so that the legs 74, 74 and the pair of rollers 72, 72 are grounded, so that the refrigerator body 1 can be installed in the vertical direction. Rubber legs 75 are provided at four corners of the right side wall 64,
, And the second ground plane Q is configured such that the legs 75,... Are grounded, so that the refrigerator main body 1 can be installed in the lateral direction.

The compartment storage chamber 2 formed in the two vertical stages.
a and 2b are both formed so that their cross-sectional shapes are substantially square.
In any case where the refrigerator body 1 is installed with the open surface 2, that is, the top surface 66 using the first ground plane P and the second ground plane Q as the ground plane, the refrigerator body 1 can be stored so as to be located above. Have been. And as shown in FIGS. 1 and 4,
In the vicinity of the opening of the upper compartment 2a, guide rollers 76a, 76a are disposed on both sides of the separation wall 57, and guide rollers 76b, 76b are disposed on both sides of the right side wall 64. Similarly, guide rollers 76c, 76c are arranged on both sides of the bottom wall 62 near the opening of the lower compartment 2b.
Guide rollers 76d are provided on both sides of the right side wall 64,
76d. Further, in the vicinity of the opening of the upper compartment 2a, the stopper roller 77a is located at an intermediate position between the pair of guide rollers 76b, 76b on the right side wall 64 and an opposing position on the left side wall 63, respectively.
And a stopper roller 77b at an intermediate position between the pair of guide rollers 76a on the separation wall 57 and an opposing position on the ceiling wall 61 thereof. Similarly, a pair of guide rollers 7 on the right side wall 64 near the opening of the lower compartment 2b.
Stopper rollers 77c, 77c are respectively provided at an intermediate position between 6d and 76d and an opposing position on the left side wall 63, and a pair of guide rollers 76 on the bottom wall 62 are provided.
Stopper rollers 77d, 77d are provided at an intermediate position between c and 76c and an opposing position on the separation wall 57, respectively.

When the refrigerator body 1 is installed vertically with the first installation surface P as the installation surface, the upper and lower compartments 2
As shown in FIG. 1 and FIG. 4, respectively, a and b are extracted for storing articles, and 3 and 3 are stored. And the upper compartment storage room 2a
The article storage extractors 3 stored in the storage wall 3 are smoothly moved forward and backward on the separation wall 57 by a pair of rear wheels 56, 56 of the extraction storage 3 and a pair of guide rollers 76a, 76a on the separation wall 57. In the middle of the extraction of the article storage extraction 3, stopper / upper rollers 77 a provided on the left and right side walls 63 and 64 on the upper surfaces of the guide plates 55 and 55 provided on both sides, respectively.
77a rolls in contact, restricts the vertical movement of the article storage extraction 3, and ensures the smooth advance / retreat. The rear end of the guide plate 55 is bent upward, and the upper bent portion 5
When 5a has been extracted to the full extent, 3 is brought into contact with the stopper roller 77a to stop the operation of extracting and extracting 3 for article storage at that position. In addition, in order to take out and extract 3 for storing goods,
The upper bent portion 55a may be disengaged from the roller 77a by rotating it around the stopper roller 77a.

In the same manner as described above, the extractor 3 for storing articles stored in the lower compartment storage chamber 2b also smoothly advances and retreats on the bottom wall 62 by the rear wheels 56, 56 and the guide rollers 76c, 76c. The vertical movement and the extraction position are regulated by the guide plates 55, 55 and the stopper double rollers 77c, 77c.

When the refrigerator main body 1 is installed laterally with the second ground plane Q as an installation plane, the top surface 66 is located above each of the two compartments 2a and 2b in a left-right positional relationship. In this way, each article is extracted for storage 3, and 3 is stored.
The article storage extractor 3 stored in the compartment storage chamber 2a to be located on the right side is a pair of rear wheels 5 of its own.
6, 56 and a pair of guide rollers 76 on the right side wall 64
b and 76b smoothly move forward and backward on the right side wall 64. In the middle of the extraction of the article storage extraction 3, the stopper double roller 77 provided on the ceiling wall 61 and the separation wall 57 on the upper surfaces of the guide plates 55, 55 provided on both sides.
The b and 77b are abuttingly rolled to restrict the vertical movement of the article storage extraction 3 to ensure the smooth forward / backward movement.
When the extraction 3 for article storage is extracted up to the near side, the upper bent portion 55a at the rear end of the guide plate 55 comes into contact with the stopper roller 77b, and the extraction operation for the article storage 3 is extracted at that position. Stop.

The compartment 2b to be located on the left side
In the same manner as described above, the article storage extractors 3 smoothly move forward and backward on the right side wall 64 by the rear wheels 56, 56 and the guide rollers 76d, 76d, as well as the guide plates 55, 55 and the stopper double roller. 77d, 77d
This restricts the vertical movement and the extraction position.

The cooling chamber 68 and the heat radiating chamber 70 are spatially and thermally separated from each other by a back wall 65 in which a heat insulating material 60 is provided. FIG. 1, FIG.
As shown in FIG. 5, a heat radiation system A connected to the first heat exchange part 26a of the thermoelectric heat exchange block 11 is built in to perform heat radiation,
In the cooling chamber 68, a heat absorbing system B connected to the second heat exchanging portion 26b of the thermoelectric heat exchanging block 11 is arranged to absorb heat from the inside 69 of the compartment and cool it. Here, the heat radiation system A and the heat absorption system B are shielded by the rear wall 65 and do not mutually affect each other.

However, the specific structure for satisfying the basic functions of such a refrigerator is not limited to the present embodiment, but can be variously designed. Note that the first heat exchange unit 26a and the second heat exchange unit 26b
It is preferable from the viewpoint of thermal efficiency that the device has a so-called manifold structure in which a number of labyrinth-like heat exchange passages already known are formed in parallel. However, it is not limited to this.

Peltier element 2 of thermoelectric heat exchange block 11
When electricity is supplied, the heat sink 5 absorbs heat on the cooling surface while radiating heat on the heat dissipation surface, and this heat absorption characteristic depends on the heat radiation characteristic. The radiating system A includes the first circulating pump 14a and the radiating heat exchanger 1
0 and the first heat exchange section 26 of the thermoelectric heat exchange block 11
As shown in FIG. 5, a is connected with conduits 32a to 32c to form a first circulation path, and is formed by filling a liquid for coolant (brine) therein. First circulation pump 1
The liquid circulated through the first circulation path by 4a
The heat exchange part 26a receives the heat radiated on the heat radiating surface of the Peltier element 25 and transfers the heat to the external air A1 in the heat radiating heat exchanger 10 to form the heat radiating air A2 on the heat radiating surface of the Peltier element 25. (See FIG. 1).

The heat absorption system B is connected to the second circulation pump 14
b, cooling heat exchanger 20 and thermoelectric heat exchange block 11
And the second heat exchange section 26b as shown in FIG.
It is connected by d to 32f to form a second circulation path, and is formed by filling the inside thereof with a refrigerant liquid. The refrigerant liquid circulated through the second circulation path by the second circulation pump 14b is passed through the second heat exchange unit 26b to the Peltier device 25.
The heat is taken away by the heat absorption on the cooling surface, and the heat is taken away. The cooling heat exchanger 20 takes the heat of the air B1 flowing into the cooling chamber 68 from the article storage chamber 2 and cools it. It is sent to the chamber 2 (see FIG. 1).

As shown in FIG. 1, the heat radiating system A is provided with a heat radiating heat exchanger 10 at a lower portion in a heat radiating chamber 70 for radiating heat to the outside of the refrigerator body 1, and a heat radiating system provided thereon. 1 provided at the bottom of the heat radiation chamber 70 by the fans 13
5, the external air A1 is sucked through the heat exchanger 10 and the heat is exchanged by contacting the external air A1 with the heat exchanger 10 for heat radiation.
It is configured to be released outside the Further, the heat absorbing system B is provided with a cooling heat exchanger 20 at a lower portion in the cooling chamber 68,
After the air B1 in the article storage chamber 2 sucked from the suction port 21 provided at the lower part of the partition wall 67 is brought into contact with the cooling heat exchanger 20 to exchange heat, the air B1 is supplied from the fan 22 provided at the upper part of the partition wall 67. The cooling air B2 is sent to the article storage room 2 and the cooling air B2 cools the stored items while moving down the article storage room 2 to the lower part.

As shown in FIG. 4, the arrangement of the fan 22 is not limited to the case where the first ground plane P is the ground plane and the case where the second ground plane Q is the ground plane. ,
An opening is provided at a position obliquely above the article storage room 2 so that the interior of the article storage room 2 can be cooled smoothly. Further, the extracted three or three article storage boxes 52 for storing both articles are configured to have air permeability, and the two compartment storage chambers 2a, 2b
Are communicated, the cooling air B2 in the article storage chamber 2 smoothly flows downward.

The thermoelectric heat exchange block 11 is shown in FIGS.
Are provided in the cooling chamber 68 as shown in FIG. As a result, the thermoelectric heat exchange block 11 is located in the cooling chamber 68, and all of the heat absorbing system B is located on the side of the interior 69 and does not come into contact with the warm air in the heat radiating chamber 70. Can be reduced, and the thermal efficiency increases accordingly. Further, in connection with such arrangement of the thermoelectric heat exchange block 11, the piping of the inlet 27a and the outlet 27b of the first circulation path in the first heat exchange section 26a of the thermoelectric heat exchange block 11 The heat radiating chamber 70 of the refrigerator body 1 through the wall 65
Has been drawn to.

The cooling heat exchanger 2 arranged in the cooling chamber 68
Numeral 0 denotes a coil cooler comprising a tube 20a bent many times in a U-shape and a large number of cooling fins 20b as shown in FIG. Are arranged so as to be inclined with respect to any of the ground planes Q. With this configuration, the first ground plane P
When the refrigerator is used vertically as shown in FIG. 2 as a ground plane, or when the refrigerator is used horizontally with the second ground plane Q as the ground plane, the coil cooler 20 is used. In particular, since the cooling fins 20b are inclined with respect to the ground plane (horizontal plane), the defrost water is supplied to the cooling fins 2b.
Without being blocked by Ob or the like, it flows down the coil cooler 20 by its own weight and flows down smoothly, and is dripped and stored in the drain receiver 5 disposed below it.

In the cooling chamber 68, the drain receiver 5 provided for receiving the defrost water from the cooling heat exchanger (coil cooler) 20 is provided with a cooling heat exchanger as shown in FIG. 20 are arranged along the two sides, and when the refrigerator body 1 is installed on the first ground plane P, the second ground plane Q
In any case, the defrosting water from the cooling heat exchanger 20 can be received. More specifically, the drain receiver 5 includes a first gutter 5a, a second gutter 5b, and a third gutter 5c, and the first gutter 5a and the second gutter 5b are The first gutter portion 5b and the third gutter portion 5c are connected to the first ground plane P so as to form a substantially V-shape with respect to the second ground plane Q. At the same time, the first gutter 5a and the second gutter 5b are connected, and the second gutter 5b and the third gutter 5c are connected.
The water collected in the drain receiver 5 is connected to the evaporating dish 7
Are provided.

According to the above configuration, when the refrigerator is used vertically as shown in FIG. 2 with the first ground plane P as the ground plane, the defrost water dripped from the cooling heat exchanger 20 is mainly used for the first ground plane. The drain water can be received by the gutter portion 5a and the second gutter portion 5b, and the drain water can be guided to the evaporating dish 7 from a drain outlet 6a provided at a connection point between the gutter portion 5a and the second ground surface Q. When the refrigerator is used horizontally, the defrost water is mainly received by the second gutter portion 5b and the third gutter portion 5c, and the drain water evaporates from the drain outlet 6b provided at a connection point between the two. It can be guided to the plate 7, and the defrosting water treatment can be performed smoothly in any installation posture.

Evaporating dish 7 into which water from drain receiver 5 is guided
As shown in FIGS. 1 and 3, is disposed below the heat-radiating heat exchanger 10 in the heat-radiating chamber 70. This evaporating dish 7
Is a first pool 7a substantially parallel to the first ground plane P.
And a second pool 7b substantially parallel to the second ground plane Q are connected to form an L-shape. In the evaporating dish 7, a sponge-like water-absorbing substance 8 for absorbing and holding the water is semi-buried.

Two drain outlets 6 of the drain receiver 5
a and 6b, and a drain inlet 6f provided at a connection point between the first water reservoir 7a and the second water reservoir 7b of the evaporating dish 7 so as to be positioned obliquely below the branch pipe. 6c, 6
d and both branch pipes 6c and 6d are connected via a collecting pipe 6e. The branch pipes 6c and 6d are connected to the rear wall 65.
Penetrates.

According to the above configuration, the drain water of the drain receiver 5 is owed to its own weight by the branch pipes 6c and 6d and the collecting pipe 6e.
Is passed through the evaporating dish 7 and is held by the water absorbing substance 8 semi-buried in the evaporating dish 7. Since the evaporating dish 7 is formed in the L shape as described above, the refrigerator body 1
The water from the drain receiver 5 can be introduced without overflowing into the evaporating dish 7 regardless of the direction in which it is installed.

The capacity of the drain water to evaporate is enhanced by the capillary action of the water-absorbing substance 8, and the air A
1 can be cooled effectively.
Irrespective of the vertical and horizontal directions, the heat radiation heat exchanger 10 located above the evaporating dish 7 can be effectively cooled by the cooled air A1.

Further, since the drain water in the evaporating dish 7 is absorbed and held by the water-absorbing substance 8, even when the installation posture of the refrigerator main body 1 is changed from one in the vertical and horizontal directions to the other, the shock inside the evaporating dish 7 causes a shock. Water can be prevented from scattering.

As shown in FIGS. 1 and 2, the second circulating pump 14b disposed in the cooling chamber 68 is provided with the heat absorbing system B when the refrigerator body 1 is installed with the first ground plane P as the ground plane. At the uppermost position of the second circulation path and at the pump body 91
Air vent chamber 92 extending in a direction obliquely upward with respect to both the first ground plane P and the second ground plane Q.
It has. The axis of the pump body 91 is also in the same direction as the direction in which the air vent chamber 92 extends.

The refrigerant liquid from the cooling heat exchanger 20 is sucked into the circulation pump 14b from a suction port 93 provided in the air vent chamber 92, and after the mixed air is separated in the air vent chamber 92. , Into the pump body 91, where the discharge port 9 is pressurized and provided in the pump body 91.
4 to the thermoelectric heat exchange block 11.

According to the above construction, even if the refrigerator main body 1 is installed in any of the vertical and horizontal directions, the air in the refrigerant liquid circulating through the second circulation path is made to use the buoyancy to release the air in the air venting chamber 92. Can be removed smoothly.

The second circulating pump 14b, the thermoelectric heat exchange block 11, the cooling heat exchanger 20, and the pipes connecting them are mounted on a single connecting plate 95 as shown in FIGS. The heat absorbing unit 96 is configured by being attached. The coupling plate 95 is attached to the back plate 65 by bolts (not shown).

Before the heat absorbing unit 96 is housed in the cooling chamber 68, a refrigerant liquid is injected outside. A method of injecting the refrigerant liquid into the heat absorbing unit 96 will be described with reference to FIG. The air release chamber 9
Reference numeral 2 includes a chamber body 92a that is open upward, a cap 92b that closes the opening, the suction port 93, and a communication pipe 92c that communicates with the pump body 91. The cap 92b is screwed to the chamber body 92a, but is removed when the coolant liquid is injected.

When injecting the coolant liquid, an injection jig 98 shown in FIG. 6 is used. The injection jig 98 is used for the support plate 9.
8a, a pressure feed pipe 98b and an overflow pipe 98c, and the support plate 98a is screwed and attached to the chamber main body 92a. The pressure feeding pipe 98b has a connecting pipe (not shown) at its base end.
, A refrigerant supply pump 97 is connected, and the distal end portion of the refrigerant supply pump 97 reaches the inlet of the pump body 91 through the inside of the communication pipe portion 92c. The overflow pipe 98c is attached to the support plate 98a in a threaded state so as to be able to move forward and backward, and is configured so that the amount of protrusion L from the support plate 98 into the chamber can be adjusted.

The injection of the coolant liquid is performed by the pump body 91.
In a non-driven state, and the liquid for refrigerant flows in the order of the pump main body 91 → the discharge port 94 → the thermoelectric heat exchange block 11 → the cooling heat exchanger 20 → the suction port 93 by the pumping force of the refrigerant supply pump 97. , And return to the chamber body 92a. The liquid for refrigerant returned to the chamber body 92a is supplied to the overflow pipe 98c.
Spills out from outside. At this point, by stopping the pumping of the refrigerant supply pump 97, the second heat absorbing unit 96
Can be filled with a liquid for refrigerant. Thereafter, by removing the injection jig 98 from the cap body 92a and attaching the cap 92b to the chamber body 92a,
The operation of injecting the liquid for refrigerant is completed.

According to the above configuration, the injection jig 9 having a simple structure is used.
By simply using 8, the refrigerant liquid can be easily and easily injected into the second circulation system of the endothermic system. Further, after the refrigerant liquid is injected into the heat absorbing system unit 96 from the outside and then assembled into the refrigerator body 1, the injection operation can be performed more easily. Further, the liquid level of the refrigerant liquid in the air vent chamber 92 can be set by the overflow pipe 98c, and the air reservoir capacity in the air vent chamber 92 can be set to a predetermined value. By adjusting the amount of protrusion L of the overflow pipe 98c into the chamber optimally, the capacity of the air reservoir can be optimized.

As shown in FIGS. 1 and 3, the first circulating pump 14a disposed in the heat radiating chamber 70, when the refrigerator main body 1 is installed with the first ground plane P as the ground plane, the radiating system A At the uppermost position of the first circulation path and at the pump body 91
Air vent chamber 92 extending in a direction obliquely upward with respect to both the first ground plane P and the second ground plane Q.
It has. The axis of the pump body 91 is also in the same direction as the direction in which the air vent chamber 92 extends.

The refrigerant liquid from the heat radiating heat exchanger 10 is sucked into the circulation pump 14a from the suction port 93 provided in the air vent chamber 92, and after the mixed air is separated in the air vent chamber 92. , Into the pump body 91, where the discharge port 9 is pressurized and provided in the pump body 91.
4 to the thermoelectric heat exchange block 11.

According to the above configuration, even if the refrigerator main body is installed in any of the vertical and horizontal directions, the air in the refrigerant liquid circulating in the first circulation path is transferred to the air vent chamber 92 by utilizing the buoyancy. Can be removed smoothly.

The injection of the refrigerant liquid into the first circulation path of the heat radiation system A is performed in the same manner as in the second circulation path.
Needless to say, this can be performed using the injection jig 98 and the refrigerant supply pump 97 shown in FIG.

[0059]

According to the present invention, there is provided a thermoelectric module type electric refrigerator which can be freely installed in any of the vertical and horizontal directions and which solves the problem of defrost water treatment and the problem of reduced circulation pump performance. can do.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II of FIG.

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

FIG. 4 is a perspective view of the embodiment.

FIG. 5 is an explanatory view showing a circulation path of a liquid for a refrigerant.

FIG. 6 is a sectional view showing a method for injecting a liquid for a refrigerant.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refrigerator main body 2a, 2b Compartment storage room 3 Extraction for article storage 5 Drain receiver 5a, 5b, 5c Gutter part 6a, 6b Drain outlet 6f Drain inlet 7 Evaporating dishes 7a, 7b Pool part 8 Water absorbing material 10 Heat radiation Heat exchanger 11 Thermoelectric heat exchange block 14a First circulation pump 14b Second circulation pump 20 Cooling heat exchanger 25 Thermoelectric member 26a First heat exchange part 26b Second heat exchange part 66 Top surface 76a to 76d Guide Member (guide roller) 91 Pump body 92 Air release chamber A Heat dissipation system B Heat absorption system P First ground plane Q Second ground plane

Continuation of the front page (72) Katsuyuki Kuwashima, 4-5-2-5 Takaidahondori, Higashiosaka-shi, Osaka Matsushita Refrigeration Machinery Co., Ltd. (72) Toshikazu Arakawa 4-5-2, Takaidahondori, Higashiosaka-shi, Osaka No. Matsushita Refrigerating Machinery Co., Ltd. (72) Inventor Shigeomi Tokunaga 4-5-2 Takaida Hondori, Higashi-Osaka City, Osaka Pref. Matsushita Refrigerating Machinery Co., Ltd. (72) Yoshiaki Asakura 4-chome, Takaida Hondori, Higashi-Osaka City, Osaka Prefecture No.2-5 Matsushita Refrigeration Co., Ltd.

Claims (13)

[Claims] A thermoelectric heat exchange block having a first heat exchange portion thermally coupled to a heat radiating surface of the thermoelectric member and a second heat exchange portion thermally coupled to a cooling surface of the thermoelectric member; A circulating pump, a heat-radiating heat exchanger, and a first heat-exchanging section of the thermoelectric heat-exchanging block form a first circulating path, in which a refrigerant liquid is filled to form a heat-radiating system; The second circulation pump, the cooling heat exchanger, and the second heat exchange part of the thermoelectric heat exchange block form a second circulation path, and the inside thereof is filled with a refrigerant liquid to form an endothermic system. In a thermoelectric module type electric refrigerator configured to cool the inside of the refrigerator main body by heat exchange between the cooling heat exchanger of the endothermic system and the air inside the refrigerator main body, the thermoelectric module type electric refrigerator is orthogonal to the outer surface of the refrigerator main body. Forming a first ground plane and a second ground plane, and the longitudinal and horizontal directions of the refrigerator body Thereby enabling the installation, the installation posture of the cooling heat exchanger, the first thermoelectric module electric refrigerators, characterized in that it is inclined to any of the ground plane and second ground plane. 2. A thermoelectric heat exchange block, comprising: a first heat exchange section thermally coupled to a heat radiating surface of a thermoelectric member; and a second heat exchange section thermally coupled to a cooling surface of said thermoelectric member. A circulating pump, a heat-radiating heat exchanger, and a first heat-exchanging section of the thermoelectric heat-exchanging block form a first circulating path, in which a refrigerant liquid is filled to form a heat-radiating system; The second circulation pump, the cooling heat exchanger, and the second heat exchange part of the thermoelectric heat exchange block form a second circulation path, and the inside thereof is filled with a refrigerant liquid to form an endothermic system. In a thermoelectric modular electric refrigerator configured to cool the inside of the refrigerator main body by heat exchange between the heat absorbing cooling heat exchanger and the air inside the refrigerator main body, the thermoelectric module type electric refrigerator is orthogonal to the outer surface of the refrigerator main body. Forming a first ground plane and a second ground plane, and the longitudinal and horizontal directions of the refrigerator body Thereby enabling the installation, the catch drain receiving the defrosted water from the cooling heat exchanger,
Provided along two sides of the cooling heat exchanger,
The thermoelectric module-type electric appliance is configured to be able to receive defrost water from the cooling heat exchanger in both cases where the thermoelectric module is installed on the grounding surface of the first embodiment and the second grounding surface. refrigerator. 3. A drain gutter comprising a first gutter, a second gutter, and a third gutter, wherein the first gutter and the second gutter are substantially V-shaped with respect to the first ground surface. The second gutter portion and the third gutter portion are connected so as to form a substantially V-shape with respect to the second ground plane, and the first gutter portion and the second gutter portion are connected to each other. A drain outlet for guiding water accumulated in the drain receiver to the evaporating dish at a connection point with the gutter part and a connection point between the second gutter part and the third gutter part. Item 3. A thermoelectric module type electric refrigerator according to Item 2. 4. The thermoelectric module according to claim 2, wherein an installation posture of the cooling heat exchanger is inclined with respect to both the first ground plane and the second ground plane. Electric refrigerator. 5. A thermoelectric heat exchange block having a first heat exchange portion thermally coupled to a heat radiating surface of the thermoelectric member and a second heat exchange portion thermally coupled to a cooling surface of the thermoelectric member. A circulating pump, a heat-radiating heat exchanger, and a first heat-exchanging section of the thermoelectric heat-exchanging block form a first circulating path, in which a refrigerant liquid is filled to form a heat-radiating system; The second circulation pump, the cooling heat exchanger, and the second heat exchange part of the thermoelectric heat exchange block form a second circulation path, and the inside thereof is filled with a refrigerant liquid to form an endothermic system. In a thermoelectric module type electric refrigerator configured to cool the inside of the refrigerator main body by heat exchange between the cooling heat exchanger of the endothermic system and the air inside the refrigerator main body, the thermoelectric module type electric refrigerator is orthogonal to the outer surface of the refrigerator main body. Forming a first ground plane and a second ground plane, and the longitudinal and horizontal directions of the refrigerator body An evaporating dish into which water from the drain receiver is guided and a first water sump portion substantially parallel to the first contact surface and a second water sump substantially parallel to the second contact surface are provided. A thermoelectric module-type electric refrigerator, wherein the thermoelectric module-type electric refrigerator is configured so as to be connected to an L shape. 6. The thermoelectric module type electric refrigerator according to claim 5, wherein a water-absorbing substance is semi-buried in the evaporating dish. 7. A drain gutter comprising a first gutter, a second gutter, and a third gutter, wherein the first gutter and the second gutter are substantially V-shaped with respect to the first ground plane. The second gutter portion and the third gutter portion are connected so as to form a substantially V-shape with respect to the second ground plane, and the first gutter portion and the second gutter portion are connected to each other. The water collected in the drain receiver is connected to the first pool portion and the second pool portion of the evaporating dish at a connection point with the gutter portion and a connection portion between the second gutter portion and the third gutter portion. 7. The thermoelectric module type electric refrigerator according to claim 5, wherein a drain outlet for guiding to a drain inlet provided at a location is provided. 8. The cooling heat exchanger according to claim 5, wherein the installation posture of the cooling heat exchanger is inclined with respect to both the first ground plane and the second ground plane. Thermoelectric modular electric refrigerator. 9. A thermoelectric heat exchange block having a first heat exchange portion thermally coupled to a heat radiating surface of the thermoelectric member and a second heat exchange portion thermally coupled to a cooling surface of the thermoelectric member, A circulating pump, a heat-radiating heat exchanger, and a first heat-exchanging section of the thermoelectric heat-exchanging block form a first circulating path, in which a refrigerant liquid is filled to form a heat-radiating system; The second circulation pump, the cooling heat exchanger, and the second heat exchange part of the thermoelectric heat exchange block form a second circulation path, and the inside thereof is filled with a refrigerant liquid to form an endothermic system. In a thermoelectric module type electric refrigerator configured to cool the inside of the refrigerator main body by heat exchange between the cooling heat exchanger of the endothermic system and the air inside the refrigerator main body, the thermoelectric module type electric refrigerator is orthogonal to the outer surface of the refrigerator main body. Forming a first ground plane and a second ground plane, and the longitudinal and horizontal directions of the refrigerator body The first circulating pump and the second circulating pump can be installed, and the first circulating pump and the second circulating pump are for air bleeding extending in a direction obliquely above both the first ground plane and the second ground plane. A thermoelectric modular electric refrigerator comprising a chamber. 10. The installation posture of the cooling heat exchanger is inclined with respect to both the first ground plane and the second ground plane, and receives defrost water from the cooling heat exchanger. The drain tray to stop
Provided along two sides of the cooling heat exchanger,
In both the case where it is grounded on the grounding surface and the case where it is installed on the second grounding surface, it is configured to receive the defrost water from the cooling heat exchanger, and the water from the drain receiver is guided. The evaporating dish is configured such that a first pool that is substantially parallel to the first ground plane and a second pool that is substantially parallel to the second ground plane are connected to form an L-shape. The thermoelectric modular electric refrigerator according to claim 9, characterized in that: 11. When the refrigerator main body is grounded with the first grounding surface as a grounding surface, the refrigerator main body has a vertically long shape having a plurality of vertically divided compartments, and each compartment has an extractor for storing articles. Each of the compartments is formed so that the cross-sectional shape of each compartment is substantially square, and the refrigerator main body is installed with the top surface being the first ground plane and the second ground plane as the ground plane. The thermoelectric module-type electric refrigerator according to any one of claims 1 to 10, wherein the thermoelectric module-type electric refrigerator according to any one of claims 1 to 10, wherein the thermoelectric module-type electric refrigerator is formed so as to be able to be housed in each of the compartments so as to be positioned above even in the case. 12. The compartment storage chambers are communicated with each other, and each article storage extractor is formed such that a portion stored in the refrigerator main body has air permeability. 12. The thermoelectric modular electric refrigerator according to item 11. 13. A guide member is provided on each of a peripheral wall near the first ground plane and a peripheral wall near the second ground plane of each of the compartment storage chambers to guide the extraction and storage of articles. The thermoelectric module type electric refrigerator according to claim 11 or 12, wherein