JPH11294890A - Cold source module and cold source unit utilizing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To significantly improve cooling efficiency attributed to Peltier elements by arranging a cold source module as combination of the Peltier elements and heat sinks to build a cold source unit by combining a plurality of the cold source modules. SOLUTION: A heat absorption side heat sink 3 is kept in contact with a heat absorbing surface 2a of a Peltier element 2 and a radiation side heat sink 4 with a heat radiating surface 2b separately to grasp the Peltier element 2 with the heat sinks 3 and 4. The heat sinks 3 and 4 are provided with pin- shaped fins 3b and 4b. Fans 5 and 6 are mounted on the respective heat sinks 3 and 4 and with the driving of the fans 5 and 6, air is introduced into the heat sinks 3 and 4 from the perimeter of the fins 3b and 4b thereby enhancing heat absorbing and radiating performances of the Peltier element 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold heat source module and a cold heat source unit formed by combining a plurality of the cold heat source modules. In particular, the present invention relates to a countermeasure for achieving high cooling efficiency by minimizing a temperature difference between a heat absorbing surface and a heat radiating surface of a thermoelectric element such as a Peltier element as a heat source of a cold heat source module.

[0002]

2. Description of the Related Art Conventionally, a Peltier device utilizing the Peltier effect has been known as a device for cooling a space or the like containing electronic components. The Peltier effect is described in, for example, 119 of "Physics Dictionary (published on June 25, 1989, editor: Physics Dictionary Editor, Maruzen Co., Ltd.)"
It is disclosed on page 9. In this Peltier element, one surface becomes a heat absorbing surface and the other surface becomes a heat radiating surface when electricity is supplied. That is, heat is taken from one surface and heat is discharged from the other surface. Then, the heat-absorbing surface is exposed to the space in which the electronic components are accommodated, and the heat-dissipating surface is exposed to the outside air. This takes away heat from the space,
Releases heat to the outside air. Due to this operation, the malfunction that electronic components are adversely affected by heat and cause malfunctions,
This is avoided by cooling the space.

In order to improve the cooling efficiency of the Peltier element, it is necessary to increase the amount of heat radiated from the heat radiating surface as much as possible. That is, it is necessary to increase the amount of heat radiation to minimize the temperature difference between the heat absorption surface and the heat radiation surface.

[0004]

However, at present, almost no measures have been taken to increase the heat radiation efficiency of the Peltier device. For example, although measures have been taken to project heat radiation fins on the heat radiation surface of the Peltier element to thereby increase the heat radiation efficiency, this has not yet led to a significant improvement in the cooling efficiency of the Peltier element.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a cold heat source module in which a thermoelectric element such as a Peltier element is combined with a heat sink, and a plurality of the cold heat source modules. An object of the present invention is to significantly improve the cooling efficiency of a thermoelectric element with respect to a cold heat source unit formed in combination.

[0006]

Means for Solving the Problems-Outline of the Invention-In order to achieve the above object, the present invention sandwiches a thermoelectric element such as a Peltier element between a pair of heat sinks, and has a heat absorbing performance of a heat absorbing surface of the thermoelectric element and heat radiation. The heat radiation performance of the surface can be kept high.

-Solution Means- Specifically, a first solution means taken by the present invention is, as shown in FIGS. 1 and 2, a pair of fins (3b) and (4b) projecting from the front surface. Heat sinks (3), (4), and a thermoelectric element (2) that has a heat absorbing surface (2a) and a heat radiating surface (2b) and absorbs heat from the heat absorbing surface (2a) and radiates heat from the heat radiating surface (2b) by conducting electricity. To form a cold heat source module. Also, the back surface (3c) of one heat sink (3) contacts the heat absorbing surface (2a) of the thermoelectric element (2), and the back surface (4c) of the other heat sink (4) has the heat radiation surface (2c) of the thermoelectric element (2). The thermoelectric element (2) is sandwiched between the heat sinks (3, 4) so as to be in contact with 2b).

According to this specific matter, when electricity is supplied to the thermoelectric element (2), a heat absorbing operation is performed on the heat absorbing surface (2a) and a heat releasing operation is performed on the heat radiating surface (2b). Since the heat sinks (3) and (4) are in contact with the respective surfaces (2a and 2b), their heat absorption performance and heat radiation performance are maintained high.

According to a second aspect of the present invention, in the first aspect, the back surfaces (3c, 4c) of the heat sinks (3), (4) are formed as flat surfaces. On the other hand, both the heat absorbing surface (2a) and the heat radiating surface (2b) of the thermoelectric element (2) are formed as flat surfaces.

According to this specific matter, when the thermoelectric element (2) is sandwiched between the heat sinks (3) and (4), each surface (2a, 2b) of the thermoelectric element (2) and each heat sink (3), ( Good adhesion to the back surface (3c, 4c) of (4) can be ensured, and heat transfer between the thermoelectric element (2) and each of the heat sinks (3), (4) can be performed well.

According to a third aspect of the present invention, in the first aspect, the fins (3b) and (4b) projecting from the front surfaces of the heat sinks (3) and (4) are formed into pins.

According to this specific matter, the heat absorption performance and heat radiation performance of the thermoelectric element (2) can be maintained high by using the fins (3b) and (4b) having a high heat exchange rate.

A fourth solution is the same as the first solution, except that a blower (5), a blower (5),
(6) is attached integrally. As the blowers (5) and (6) are driven, air flows around the fins (3b) and (4b).

According to this specific matter, when the blowers (5) and (6) are driven, air flows around the fins (3b) and (4b), and high heat exchange efficiency is obtained. For this reason, the heat absorption performance and heat radiation performance of the thermoelectric element (2) are maintained at a high level.

A fifth aspect of the present invention relates to a cold heat source unit formed by combining a plurality of the cold heat source modules of the first aspect. Specifically, FIGS. 3 and 4
As shown in the figure, the thermoelectric element (2) is sandwiched between the rear faces (3c, 4c) of a pair of heat sinks (3), (4) with projecting fins (3b), (4b) on the front face. Is a cold heat source unit formed by integrally combining a plurality of the cold heat source modules (1, 1,...). And, a unit plate (11) is provided, and openings (12, 12, ...) through which the respective cold heat source modules (1, 1, ...) are inserted and supported are provided at predetermined intervals in the unit plate (11). Formed. The cooling source module (1,
1, ...) are individually inserted and supported, and heat sinks (3,3, ...) in contact with the heat absorbing surface (2a) of the thermoelectric elements (2,2 ...) are positioned on one side of the unit plate (11). Thermoelectric elements (2,2
The heat sinks (4, 4,...) That are in contact with the heat radiation surface (2b) of the...

According to this specific matter, the operation similar to that of the above-described first solving means is performed in each of the cold heat source modules (1, 1,...). Therefore, a large amount of heat absorption and heat dissipation can be obtained for the entire unit.

According to a sixth aspect, in the fifth aspect, as shown in FIG. 7, the heat absorbing surface of the thermoelectric element (2, 2,...) Is used.
Since the heat sinks (3, 3, ...) in contact with (2a) face the internal space of the box (30), the cold heat source modules (1, 1, ...) are configured to cool this internal space. I do. Also, replace the unit plate (11) with the box
According to the configuration of (30), it is fitted to the box (30) so as to close the open portion so as to conform to the shape of the open portion.

According to this specific matter, the internal space of the box body (30) is cooled by the cooling action of the heat sinks (3, 3,...) Contacting the heat absorbing surface (2a) of the thermoelectric elements (2, 2,...). This allows
This internal space can be maintained at a low temperature. In addition, the unit plate (11) supporting the cold-heat module (1,1, ...) is
Since the inside of (30) is also used as a member that forms a closed space, the number of components can be reduced.

According to a seventh aspect, in the fifth aspect, the blowers (5), (6) are provided on the front side of the heat sinks (3), (4).
And the fins (3b) and (4) as the blowers (5) and (6) are driven.
b) Introduce air from outside. On the other hand, collecting boxes (20, 25) are provided to join the downstream sides of the blowers (5, 6) of the respective cooling and heat source modules (1, 1, ...), and the air outlets are provided in the collecting boxes (20, 25). (22) is formed.

According to this specific matter, the air introduced from the outer periphery of the fins (3b) and (4b) by driving the blowers (5) and (6) is cooled or heated by the thermoelectric elements (2, 2,...). After that, it flows into the collecting box (20, 25). Thereafter, the air is blown out from the air outlet (22) of the collecting box (20, 25). In other words, the air flowing out of the heat sink (3, 4)
After merging at the collecting boxes (20, 25), it becomes possible to process them collectively.

According to an eighth aspect of the present invention, in the above-mentioned seventh aspect, as shown in FIG. 8, an air blowing direction is guided to an air outlet (22) of a collecting box (20, 25) in a predetermined direction. Outlet guide (22a) is provided.

According to this specific matter, the collection box (20, 2
The air merged in 5) can be rectified and processed by the blowing guide (22a).

The ninth solution is the sixth solution, as shown in FIG. 10, wherein the heat radiation surface (2, 2...) Of the thermoelectric elements (2, 2,...)
b) A blower is mounted on the front side of the heat sink (4,4, ...)
(6) is provided, and air is introduced from the outer periphery of the fin (4b) with the driving of the blower (6). On the other hand, a radiating side collecting box (25) is provided for joining the downstream sides of the blowers (6, 6, ...) of the respective cooling and heat source modules (1, 1, ...), and an air outlet is provided in the radiating side collecting box (25). To form Further, an air outlet guide (25a) is provided at the air outlet to guide the air blowing direction in a predetermined direction. At the open edge of the box (30), a suction guide (30a) extending to the open side from the mounting position of the unit plate (11) is provided. The tip position of the outlet guide (25a) is located closer to the air outlet than the tip position of the suction guide (30a) of the box (30).

According to this specific matter, the air flowing into the heat sink (4, 4,...) From the suction guide (30a) at the open edge of the box (30) receives the exhaust heat of the thermoelectric elements (2, 2,...). , And is blown out from the blowers (6, 6,...) And flows into the radiating side collecting box (25). Then, this air is blown out by the guide (25
Guided to a) and blown out. Since the tip position of the blow guide (25a) is located closer to the air blowing side than the tip position of the suction guide (30a), the air blown out from the blow guide (25a) flows into the suction guide (30a). It has become difficult. That is, the short circuit of the blown air is avoided.

According to a tenth aspect, in the fifth aspect, as shown in FIG. 9, heat sinks (4, 4,...) Contacting the heat radiation surface (2b) of the thermoelectric elements (2, 2,...). A blower (6) is arranged on the front side of the fin (4b) with driving of the blower (6).
So that air is introduced from the outside. On the other hand, a radiating side collecting box (25) is provided for joining the downstream sides of the blowers (6, 6, ...) of the respective cold heat source modules (1, 1, ...). In addition, the thermoelectric element (2)
The drive power supply (35) is cooled.

According to this specific matter, the heat dissipation side collective box
The drive power supply (35) for the thermoelectric element (2) can be cooled by effectively utilizing the air flowing through (25).

According to an eleventh solution, the heat sinks (3) and (4) are different from the fifth solution as shown in FIG.
Are provided on the front side of the box with collecting boxes (20) and (25) for joining the air passing through the heat sinks (3) and (4). Blowers (5), (6) are supplied to the air outlets formed in these collecting boxes (20), (25).
Is provided.

According to this specific matter, since the blowers (5) and (6) are not provided for each of the cooling / heating source modules (1, 1,...), The blowers (5) and (6) as a whole unit are not provided. The number can be reduced.

According to a twelfth solution, in the fifth solution, a heat sink (4, 4,...) That contacts the heat radiation surface (2b) of the thermoelectric element (2, 2,. 4,4,…)
A collecting box (25) is provided for joining the air that has passed through the collecting box. A blower (6) is provided at an air outlet formed in the collecting box (25), and the blower (6) blows air toward the outer periphery of the unit plate (11).

According to this specific matter, it is possible to prevent the occurrence of a so-called short circuit in which the air blown out from the collecting box (25) returns to the heat sink (4, 4,...) On the heat radiation side.

[0031]

Embodiment 1 Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings. In this embodiment, the Peltier element
Combining a plurality of cold heat source modules (1) utilizing (2) to form a cold heat source unit (10),
An example in which the housing space for electronic components is cooled by (10) will be described.

-Description of Cold Heat Source Module (1)-First, the cold heat source module (1) will be described. As shown in FIG. 1, this cold heat source module (1) includes a Peltier element (2), a pair of heat sinks (3, 4), and a pair of fans (5, 6).
Are integrally combined. Hereinafter, each component will be described.

The Peltier device (2) has a rectangular flat plate shape,
By being energized, one surface (upper surface in FIG. 1) (2a) has a low temperature and the other surface (lower surface in FIG. 1) (2b) has a high temperature. That is, one becomes the heat absorbing surface (2a) and the other becomes the heat radiating surface (2b). These surfaces (2a, 2b) are formed as smooth flat surfaces.

The heat sinks (3, 4) have the same configuration. First, the heat sink side heat sink (3) located on the upper side of FIG. 1 will be described. This heat sink side heat sink
(3) is made of aluminum, in which a flat heat receiving portion (3a) and a plurality of pin-shaped fins (3b, 3b, ...) are integrally formed. The heat receiving portion (3a) has a back surface (lower surface) (3c) in contact with the heat absorbing surface (2a) of the Peltier element (2). This heat receiving part (3a)
Is formed in a rectangular flat plate slightly larger than the Peltier element (2), and the back surface (3c) is formed of a smooth flat surface. Each of the fins (3b, 3b,...) Has a pin-like and lattice-like shape (for example, four rows in the depth direction of FIG.
Column).

The heat sink 4 has the same structure as the heat sink 3. That is, the flat heat receiving portion (4a) and the plurality of pin-shaped fins (4b, 4b,...) Are integrally formed. In the heat sink (4), the back surface (upper surface) (4c) of the heat receiving portion (4a) is formed of a smooth flat surface, and the back surface (upper surface) (4c) is the heat radiation surface of the Peltier element (2). (2b).

With the Peltier element (2) thus sandwiched between the heat sinks (3, 4), they are integrally fastened by bolts (not shown). Thus, between the heat absorbing surface (2a) of the Peltier element (2) and the back surface (3c) of the heat absorbing side heat sink (3), and between the heat radiating surface (2b) of the Peltier device (2) and the back surface of the heat radiating side heat sink (4). Adhesion with (4c) is ensured. That is, the heat transfer between the Peltier element (2) and each of the heat sinks (3, 4) is performed favorably.

The fans (5, 6) have the same configuration. First, the heat absorbing side fan (5) located on the upper side of FIG.
Will be described. The heat absorption side fan (5) includes a propeller fan (5b) and a fan motor (not shown) housed in a fan casing (5a). Propeller fan (5
b) generates an airflow from the lower side to the upper side in the figure by rotating. The outer dimensions of the fan casing (5a) are substantially the same as those of the heat sink side heat sink (3).
Further, the rotation axis of the propeller fan (5b) coincides with the extension direction (vertical direction) of the fins (3b, 3b,...) Of the heat sink side heat sink (3). Thus, when the heat absorbing side fan (5) is driven, air is introduced from the outer periphery of the fins (3b, 3b,...) Of the heat absorbing side heat sink (3), and the air is supplied to the fins (3b, 3b, 3b).
..) Are blown upward by the heat-absorbing-side fan (5).

The heat radiation side fan (6) has the same structure as the heat absorption side fan (5). That is, the propeller fan (6b) and the fan motor (not shown) are housed in the fan casing (6a). The propeller fan (6b) generates an airflow from the upper side to the lower side in the figure by rotating. Accordingly, when the heat radiation side fan (6) is driven, air is introduced from the outer periphery of the fins (4b, 4b,...) Of the heat radiation side heat sink (4), and the air is introduced into the fins (4b, 4b,.
And is blown downward by the heat radiation side fan (6).

With the fans (5, 6) arranged on both sides of the heat sinks (3, 4) in this way, they are integrally fastened by bolts (not shown). As a result, as shown in FIG. 2, the Peltier element (2), the heat sinks (3, 4) and the fans (5, 6) are integrally fastened to form the cold heat source module (1).

The configuration of the cold heat source module (1) has been described above. As described above, the cooling / heating source module (1) is configured as shown in FIG. 2 by energizing the Peltier element (2) and driving the fans (5, 6).
As shown by a solid line arrow, cool air is blown from the heat absorption side fan (5), while heat released from the heat radiation surface (2b) of the Peltier element (2) is radiated as shown by a broken line arrow in FIG. The air is discharged from the side fan (6).

-Description of Cold Heat Source Unit (10)-Next, the cold heat source unit (10) will be described. This cold heat source unit (10) is formed by combining a plurality of the cold heat source modules (1). Hereinafter, the configuration of the cold heat source unit (10) will be described.

As shown in FIGS. 3 and 4, the cooling / heating source modules (1, 1,...) Are integrally combined by a unit plate (11). A plurality of module insertion holes (12, 12, ...) are formed in the unit plate (11).
This module insertion hole (12,12, ...)
It has a rectangular opening conforming to the shape of (3, 4), and is arranged in a lattice shape over the entire unit plate (11).
Specifically, three rows are provided in the depth direction of FIG. 3 and three rows are provided in the left-right direction, for a total of nine locations.

As shown in FIG. 4, each of the module insertion holes (12, 12,...) Is
The heat sinks (3, 4) are fixed to the unit plate (11) with the heat sinks (3, 4) inserted into the module insertion holes (12). Thereby, the upper half and the lower half of each cooling / heating source module (1, 1,...) Are separated by the unit plate (11) (FIG. 4).
reference).

Above the unit plate (11), the heat sinks (3, 3,
) Are cooled and supplied upward, while the heat sinks (4,4,4,4,4,4) of each cold heat source module (1,1, ...) are provided below the unit plate (11). ..) Is discharged downward by receiving the exhaust heat of the Peltier element (2).

Further, a heat absorbing side collecting box (20) is attached to the heat absorbing side of the cold heat source unit (10). The heat-absorbing-side collecting box (20) is a flat box as shown in FIG. On the lower surface, each cold source module
Openings (21, 21,...) Are formed corresponding to the arrangement positions of (1, 1,...). This opening (21,21,…) is the heat absorbing side fan (5,5,…)
Of the fan casing (5a, 5a,...). In addition, as shown in FIG.
An outlet (22) is formed on the upper surface of the. This outlet
(22) is formed with an opening having a relatively small width at one side of the upper surface of the heat-absorbing side collecting box (20). The heat-absorbing-side collecting box (20) having such a configuration is provided with each opening (21, 21,
..) And the respective cold heat source modules (1,1,...) Are mounted above the cold heat source modules (1,1,. As a result, the heat absorbing side collecting box (20) is attached to each of the cold heat source modules (1,1,...) With the downstream side (upper side) of the heat absorbing side fan (5) communicating with the heat absorbing side collecting box (20). Can be In other words, the air blown out from each heat-absorbing-side fan (5) passes through the heat-absorbing-side collecting box (20), and
It is configured to be blown upward from 2) (see the arrow in FIG. 6). The opening area of the outlet (22) is set smaller than the sum of the opening areas of the openings (21, 21,...) On the lower surface of the heat-absorbing-side collecting box (20). Because of this, this outlet
From (22), the configuration is such that air with a wind speed higher than the blow speed from each fan (5, 5,...) Is blown out.

The radiating side of the heat source side box (25) having the same shape as the heat absorbing side collecting box (20) is also provided on the radiating side of the cold heat source unit (10).
(See FIG. 7). As a result, the downstream side (lower side) of the heat radiation side fan (6) is
5) communicate within. That is, the air blown out from each heat radiation side fan (6) is blown downward through the inside of the collecting box (25).

-Description of Mounting Structure for Electronic Component Storage Box (30)-Next, a description will be given of a mounting structure of the cold heat source unit (10) configured as described above to the electronic component storage box (30).

The electronic component storage box (30) is a relay base for mobile communication means such as a mobile phone, for example, in which electronic components are stored inside a rectangular parallelepiped box. As shown in FIG. 7, the planar shape of the electronic component housing box (30) matches the planar shape of the unit plate (11). The lower end of the electronic component housing box (30) is open, and the edge of this open portion is attached to the outer peripheral edge of the unit plate (11). That is, the unit plate (11) forms the bottom surface of the electronic component housing box (30). As a result, the heat source-side heat sink (3), the heat sink-side fan (5), and the heat sink-side collective box (20) are housed in the lower part of the electronic component housing box (30), and the cold heat source unit (10) is It is attached to the lower part of the parts storage box (30). Also, this electronic component storage box (30)
Under the heat sink (4), heat sink (6),
A heat-dissipating-side collecting box (25) is arranged. That is, the heat radiation side heat sink (4), the heat radiation side fan (6), and the heat radiation side assembly box (25) are arranged so as to face the outside air.

-Description of Cooling Operation- Next, the cooling operation in the electronic component housing box (30) by the cold heat source unit (10) configured as described above will be described. In this cooling operation, power is supplied to the Peltier element (2), and the fans (5, 6) are driven. Thereby, cold heat is generated on the heat absorbing surface (2a) of the Peltier element (2), and warm heat is generated on the heat radiating surface (2b).

Inside the electronic component housing box (30), the air in the housing box (30) is finned by the driving of the heat absorbing fan (5).
The heat flows from the outer periphery of (3b) into the heat sink (3).
Here, the air receives cold heat from the heat absorbing surface (2a) through the fins (3b), becomes low temperature, and is blown upward from the heat absorbing side fan (5) (see the arrow indicated by the solid line in FIG. 2). The air (cold air) blown upward is the heat-absorbing-side collecting box (20)
Of the electronic component storage box (3
The electronic component in (0) is cooled, and flows into the heat-absorbing heat sink (3) from the outer periphery of the fin (3b) again. Such air circulation operation is continuously performed inside the electronic component housing box (30), and overheating of the electronic components is avoided.

On the other hand, outside the electronic component housing box (30), outside air flows into the heat radiation side heat sink (4) from the outer periphery of the fin (4b) with the driving of the heat radiation side fan (6). here,
The air receives the exhaust heat from the heat radiation surface (2b) via the fins (4b) and is blown downward from the heat radiation side fan (6) (see the arrow indicated by the broken line in FIG. 2). The air (hot air) blown downward is blown downward from the radiating side collecting box (25) toward the outside air. Such a flow of air is continuously performed, and the exhaust heat from the Peltier element (2) is efficiently exhausted to the outside air.

-Effects of First Embodiment- As described above, according to the present embodiment, the Peltier device
Heat sinks (3, 4) are provided on the heat-absorbing surface (2a) and heat-dissipating surface (2b) of (2), and by allowing air to pass through these, sufficient heat absorption and heat dissipation of the Peltier element (2) are secured. can do. In particular, the amount of heat radiation from the heat radiation surface (2b), which greatly affects the performance of the Peltier element (2), can be greatly increased. Therefore, the temperature difference between the heat absorbing surface (2a) and the heat radiating surface (2b) can be reduced, and the performance of the Peltier element (2) can be sufficiently exhibited. Also, the unit plate (11)
Since each of the cooling / heating source modules (1,1, ...) supported at a predetermined interval, air is introduced from the entire circumference of each cooling / heating source module (1). As a result, the amount of introduced air is sufficiently secured. As a result, the inside of the electronic component storage box (30) can be maintained at a low temperature, and malfunction of the electronic component can be avoided.

[0053]

Embodiment 2 Hereinafter, Embodiment 2 of the present invention will be described with reference to FIG. This embodiment is a modification of the heat-absorbing-side collecting box (20), and the other configuration is the same as that of the first embodiment. Therefore, here, the first embodiment
Only the differences from the above will be described.

As shown in FIG. 8, the heat-absorbing-side collecting box (20) of this embodiment is provided with a blow-out guide (22a) at a blow-out port (22). The outlet guide (22a) is a frame extending vertically upward from the opening edge of the outlet (22), and directs the cool air blown from the outlet (22) vertically upward.

By providing such a blow-out guide (22a), it is possible to sufficiently supply cold air to the upper part in the electronic component housing box (30), and to uniformly cool the entire electronic component housing box (30). Can be maintained at a very low temperature.

[0056]

Third Embodiment A third embodiment of the present invention will be described below with reference to FIG. In this embodiment, a power supply unit (35) is provided in a heat-radiation-side collective box (25). That is, the power supply unit (35) is cooled by the air blown out from the heat radiating side collective box (25).

According to this, the power supply unit (3
There is no need to provide special cooling means for 5). That is, the airflow generated by driving the radiating fan (6) can be effectively used for cooling the power supply unit (35).

The power supply unit (35) may be arranged at the outlet of the heat-radiating-side collecting box (25) or inside the heat-radiating-side collecting box (25). .

[0059]

Embodiment 4 Hereinafter, Embodiment 4 of the present invention will be described with reference to FIG. In this embodiment, the electronic component storage box (3
This is a modification of (0). Therefore, here, the electronic component storage box
Only the configuration of (30) will be described.

As shown in FIG. 10, the electronic component housing box (30) of the present embodiment is provided with a unit plate (1) of the cold heat source unit (10).
A suction guide (30a) extending below the mounting position of 1) is provided. The lower end position of the suction guide (30a) is located above the lower end position of the blow-out guide (25a) provided at the blow-out opening of the heat-dissipating collective box (25).

As a result, by driving the radiating side fan (6), outside air is introduced from the space between the radiating side collecting box (25) and the suction guide (30a) (see the arrow indicated by a solid line in FIG. 10). This outside air passes through the heat sink (4) on the heat radiation side, and recovers the exhaust heat of the Peltier element (2). Thereafter, the air is discharged to the outside air through the heat radiation side fan (6) and the heat radiation side collecting box (25) (see the arrow indicated by the broken line in FIG. 10).

As described above, by providing the suction guide (30a) in the electronic component housing box (30), it is possible to configure an air suction path and an air discharge path for the heat radiation side heat sink (4). . Also, since the lower end of the suction guide (30a) is located above the lower end of the radiating side collecting box (25), the air (hot air) blown downward from the radiating side collecting box (25) dissipates heat. It is also possible to suppress the occurrence of a short circuit that flows into the side heat sink (4). When the electronic component housing box (30) is installed outdoors, it is possible to prevent the heat radiation side heat sink (4) and the heat radiation side fan (6) from being exposed to wind and rain by the suction guide (30a).

[0063]

Embodiment 5 Hereinafter, Embodiment 4 of the present invention will be described with reference to FIG. In the above embodiments, the fans (5) and (6) are provided for each of the heat sinks (3) and (4).
In this embodiment, the cold heat source module (1) is replaced with a Peltier element (2),
The heat sink (3) includes a heat sink (3) and a heat sink (4). And the heat absorption side fan (5) and the heat radiation side fan (6) are provided in each assembly box (20, 25).

Hereinafter, the configuration of the present embodiment will be specifically described.
As shown in FIG. 11, the cold heat source module of this embodiment (1)
Is constructed by disposing only heat sinks (3, 4) on both sides of a Peltier element (2). Above the heat-absorbing heat sink (3), a heat-absorbing aggregate box (20) is provided. A heat-radiation-side collective box (25) is provided below the heat-radiation-side heat sink (4).

A circular opening is formed in the upper surface of the heat-absorbing collecting box (20), and a heat-absorbing fan (5) is provided in this opening. In other words, the air that has passed through the fins (3b, 3b,...) And received the cold heat from the heat sink side heat sink (3) due to the driving of the heat sink side fan (5) flows into the heat sink side collecting box (20). Then, the air is blown out to the electronic component housing box (30) through the heat absorption side fan (5) (see the arrow indicated by the solid line in FIG. 11).

On the other hand, the radiating side collective box (25)
As shown in FIG. 5, one side surface is formed by an inclined surface (25b) that is inclined inward as going downward. This slope
Circular openings are formed in two places of (25b), and the radiation-side fans (6, 6) are provided in these openings. In other words, the fins (4b, 4
b, ...), and receives the exhaust heat from the radiating heat sink (4), flows into the radiating box (25), and is blown obliquely downward by the radiating fans (6, 6). (See the arrow shown by the broken line in FIG. 11).

As described above, since the air is blown obliquely downward from the heat radiating side collecting box (25), it is possible to prevent the blown air from returning to the heat radiating side heat sink (4), which is a so-called short circuit. it can. In other words, when air is blown vertically downward from the heat-radiation-side collecting box (25), there is a concern that short-circuiting may occur, as this air is hot and rises and flows into the heat-radiation-side heat sink (4) as it is. Is done. In the present embodiment, since the air is blown in the outer circumferential direction, even when the blown air rises, it is possible to obtain a situation where it is difficult for the blown air to flow into the heat sink (4), thereby increasing the heat removal efficiency of the Peltier element (2). Can be maintained.

In each of the embodiments described above, the cold heat source module (1) is used for cooling the relay base of the mobile communication means such as a mobile phone. The present invention is not limited to this, but is also applicable to cooling other electronic components, cooling sensors, and cooling an air-conditioned space.

The fins (3b, 4b) provided on each of the heat sinks (3, 4) are in the form of pins, but are not limited thereto, and may be of various shapes such as a plate, or a polygonal cross section. Can be adopted.

Further, as means for circulating air in the electronic component housing box (30), a separate circulation fan may be installed in the electronic component housing box (30).

[0071]

As described above, according to the present invention, the following effects are exhibited. According to the first aspect of the present invention, the thermoelectric element (2) is sandwiched between a pair of heat sinks (3, 4) in a cold heat source module in which the thermoelectric element (2) and the heat sink (3, 4) are combined. Heat absorbing surface of element (2) (2
The heat absorption performance of a) and the heat radiation performance of the heat radiation surface (2b) can be maintained high. For this reason, the amount of heat radiated from the heat radiating surface (2b), which greatly affects the performance of the thermoelectric element (2), can be greatly increased. As a result, the heat absorbing surface (2a) and the heat radiating surface (2b)
Can be reduced, and the performance of the thermoelectric element (2) can be sufficiently exhibited.

According to the second aspect of the present invention, each heat sink
The contact surfaces between (3), (4) and the thermoelectric element (2) are both flat surfaces,
These adhesivenesses were obtained favorably. Therefore, heat transfer between the thermoelectric element (2) and each of the heat sinks (3) and (4) can be performed well, and the performance of the thermoelectric element (2) can be further improved.

According to the third aspect of the present invention, a heat sink
The fins (3b) and (4b) projecting from the front surfaces of (3) and (4) are pin-shaped. For this reason, fins with a high heat exchange rate (3
By utilizing (b) and (4b), the heat absorption performance and heat radiation performance of the thermoelectric element (2) can be maintained high.

According to the fourth aspect of the present invention, each heat sink
Blowers (5) and (6) are integrally mounted on the front side of (3) and (4),
As the blowers (5) and (6) are driven, air flows around the fins (3b) and (4b). Therefore, air flows around the fins (3b) and (4b), and heat absorption and heat radiation of the thermoelectric element (2) are performed with high heat exchange efficiency. As a result, a sufficient heat absorption amount can be obtained without using a large thermoelectric element (2).

According to the fifth aspect of the present invention, a plurality of the cold heat source modules (1, 1,...) According to the first aspect of the present invention are combined to constitute a cold heat source unit. For this reason, a large amount of heat absorption and heat dissipation can be obtained as the whole unit, and it can be applied to a use mode requiring a large amount of heat absorption, and the practicality can be improved.

According to the sixth aspect of the present invention, the thermoelectric element (2,2
The heat sinks (3, 3,...) In contact with the heat absorbing surface (2a) of the box (30) face the internal space of the box (30) to cool the internal space. Further, one surface of the box (30) is closed by the unit plate (11). For this reason,
The internal space of the box (30) can be efficiently cooled, and the number of component parts can be reduced because the unit plate (11) is also used as a member that makes the inside of the box (30) a closed space. Can be planned.

According to the seventh aspect of the present invention, a heat sink
Blowers (5) and (6) are arranged on the front side of (3) and (4), and blowers (5) and
A collecting box (20, 25) is provided to join the downstream side of (6). For this reason, it is possible to collectively process the air that has joined in the collecting box (20, 25).

In the invention according to claim 8, the collection box (2
The air outlet (22) of (0, 25) is provided with a blow guide (22a) for guiding the blow direction of air in a predetermined direction. For this reason, it is possible to rectify and process the air joined in the collecting box (20, 25).

According to the ninth aspect of the present invention, the suction guide (30a) is formed by extending the open side of the box (30), and the leading end position of the blowout guide of the collective box (25) on the heat radiation side is determined. (30)
The suction guide (30a) is positioned closer to the air blowing side than the distal end position. For this reason, a short circuit in which the air blown out from the blowing guide returns to the heat sink (4) can be avoided, and the exhaust heat treatment capability of the thermoelectric elements (2, 2, ...) can be reliably maintained.

According to the tenth aspect, the drive power supply (35) of the thermoelectric element (2) is cooled by the air flowing through the collective box (25) on the heat radiation side. For this reason, the drive power supply (35) can be cooled by effectively using the exhaust gas, and no special means for cooling the drive power supply (35) is required.

According to the eleventh aspect, the collective box
Blowers (5) and (6) are provided in (20) and (25). For this reason, the blower (5),
There is no need to install (6), and the fan as a whole unit
The number of (5) and (6) can be reduced, and the cost can be reduced.

According to the twelfth aspect of the present invention, the blower (6) of the collecting box (25) on the heat radiating side sends air to the unit plate.
The air blows in the outer peripheral direction of (11). For this reason,
It is possible to prevent the so-called short circuit in which the air blown out from the collecting box (25) returns to the heat sink (4, 4,...) On the heat radiation side, and in this case, the thermoelectric elements (2, 2
..) Can be reliably maintained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a cold heat source module according to a first embodiment.

FIG. 2 is a perspective view showing a cold heat source module.

FIG. 3 is a perspective view showing a state where one cold heat source module is mounted on a unit plate.

FIG. 4 is a perspective view showing a cold heat source unit.

FIG. 5 is a perspective view showing an assembling operation of the heat-absorbing side collecting box.

FIG. 6 is a perspective view showing a state in which a heat absorbing side collecting box is assembled to the cold heat source unit.

FIG. 7 is a perspective view showing a state in which the cold heat source unit is assembled to the electronic component housing box.

FIG. 8 is a diagram corresponding to FIG. 6 in the second embodiment.

FIG. 9 is a diagram corresponding to FIG. 6 in the third embodiment.

FIG. 10 is a diagram corresponding to FIG. 7 in the fourth embodiment.

FIG. 11 is a side view of a cold heat source unit according to the fifth embodiment.

FIG. 12 is a perspective view of a heat-radiation-side collective box according to a fifth embodiment.

[Explanation of symbols]

 (1) Cold heat source module (2) Peltier element (thermoelectric element) (2a) Heat absorbing surface (2b) Heat dissipating surface (3,4) Heat sink (3b, 4b) Fin (3c, 4c) Back surface (5,6) Fan ( (10) Cooling heat source unit (11) Unit plate (20, 25) Collecting box (21) Opening (22) Outlet (22a) Outlet guide (30) Electronic component storage box (box) (30a) Suction guide (35) Power supply unit (drive power supply)

Claims (12)

[Claims] 1. A pair of heat sinks (3) and (4) having fins (3b) and (4b) projecting from the front surface, a heat absorbing surface (2a) and a heat radiating surface (2b). A thermoelectric element (2) that absorbs heat from the heat-absorbing surface (2a) and radiates heat from the heat-dissipating surface (2b), and the back surface (3c) of one heat sink (3) is on the heat-absorbing surface (2a) of the thermoelectric element (2). The thermoelectric element (2) is sandwiched by the heat sinks (3, 4) such that the heat sinks (3, 4) come into contact with each other and the back surface (4c) of the other heat sink (4) contacts the heat radiation surface (2b) of the thermoelectric element (2). A cold heat source module characterized by the above-mentioned. 2. The cold heat source module according to claim 1, wherein the back surface (3c, 4c) of each heat sink (3), (4) is formed as a flat surface, and the thermoelectric element (2) is connected to the heat absorbing surface (2a). ) And the heat radiating surface (2b) are both formed as flat surfaces. 3. The cold heat source module according to claim 1, wherein the fins (3b) and (4) project from the front surfaces of the heat sinks (3) and (4).
b) Pin-shaped cold heat source module. 4. The heat source module according to claim 1, wherein blowers (5) and (6) are integrally mounted on the front side of each of the heat sinks (3) and (4). ) And (6), wherein the air flows around the fins (3b) and (4b) in accordance with the driving of (6). 5. A thermoelectric element (2) is sandwiched between rear surfaces (3c, 4c) of a pair of heat sinks (3), (4) having fins (3b), (4b) projecting from the front surface. A plurality of cold heat source modules (1, 1,...) Comprising a unit plate (11), wherein the unit plate (11)
Have openings (12, 12,...) Through which the respective cold heat source modules (1, 1,...) Are inserted and supported at predetermined intervals, and these openings (12, 12,...) To cold heat source module (1,1, ...)
Are individually inserted and supported, and heat sinks (3, 3, ...) in contact with the heat absorbing surface (2a) of the thermoelectric elements (2, 2, ...) are located on one side of the unit plate (11), and on the other side. A heat source unit characterized in that heat sinks (4, 4,...) Which contact heat dissipation surfaces (2b) of thermoelectric elements (2, 2,...) Are located. 6. The cold heat source unit according to claim 5, wherein the cold heat source module (1,1,...) Has a heat sink (3,3,3) contacting a heat absorbing surface (2a) of the thermoelectric element (2,2,...). …) Faces the internal space of the box (30), thereby cooling the internal space. The unit plate (11) is provided with the open side of the box (30). A cold heat source unit which conforms to the shape of the open portion and is attached to the box (30) so as to close the open portion. 7. The cooling and heat source unit according to claim 5, wherein blowers (5) and (6) are provided on a front side of the heat sinks (3) and (4), and the blowers (5) and (6) are provided. The fins (3
b) and (4b), the air is introduced from the outer periphery, while the blowers (5) and (6) of each cooling / heat source module (1,1, ...)
A collecting box (20, 25) is provided to join the downstream side of the air outlet (22) in the collecting box (20, 25).
A cold-heat source unit characterized by having a shape. 8. The cooling and heat source unit according to claim 7, wherein the air outlet (22) of the collecting box (20, 25) is provided with an air outlet guide (22a) for guiding the air blowing direction in a predetermined direction. A cold heat source unit characterized in that: 9. The heat source according to claim 6, wherein the heat sink contacts the heat radiating surface (2b) of the thermoelectric element (2, 2,...).
A blower (6) is disposed on the front side of (4, 4,...), And air is introduced from the outer periphery of the fin (4b) with the driving of the blower (6). On the other hand, a radiating side collective box (25) is provided for joining the downstream sides of the blowers (6, 6,...) Of the respective cold heat source modules (1, 1,...). Is formed with an air outlet,
The air outlet is provided with an air outlet guide that guides the air blowing direction in a predetermined direction.The open edge of the box (30) is closer to the open side than the mounting position of the unit plate (11). An extended suction guide (30a) is provided, and the tip position of the blowout guide is set at the suction guide of the box (30).
(30a) A cooling / heating source unit, which is located closer to the air blowing side than the tip position. 10. The heat source according to claim 5, wherein the heat sink contacts the heat radiation surface (2b) of the thermoelectric element (2, 2,...).
A blower (6) is disposed on the front side of (4, 4,...), And air is introduced from the outer periphery of the fin (4b) with the driving of the blower (6). On the other hand, a radiating side collective box (25) is provided for joining the downstream sides of the blowers (6, 6,...) Of the respective cold heat source modules (1, 1,...). A cooling power source unit for cooling a driving power supply (35) of the thermoelectric element (2) by air flowing through the cooling element. 11. The heat source unit according to claim 5, wherein the heat sinks (3) and (4) are provided on the front side of the heat sinks (3) and (4).
Collecting boxes (20) and (25) are provided to join the air that has passed through, and blowers (5) and (6) are provided at the air outlets formed in the collecting boxes (20) and (25). A cold heat source unit characterized in that: 12. The heat source unit according to claim 5, wherein the heat sink contacts the heat radiation surface (2b) of the thermoelectric element (2, 2,...).
At the front side of (4,4, ...), a collecting box (25) is provided for joining the air passing through the heat sinks (4,4, ...), and the air formed in the collecting box (25) is provided. A blower (6) is provided at the outlet, and the blower (6) blows air toward an outer periphery of the unit plate (11).