JP2001349635A - Peltier type temperature adjusting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a thermal resistance of a heat exchanger contacted with a Peltier element and liquid in a Peltier type water temperature adjusting device into a quite low value and improve a mechanical life time. SOLUTION: There is provided a Peltier type water temperature adjusting device in which a control means for controlling a current in a Peltier element 1, a thermal radiation means having thermal radiation fins 8 and a blower fan 6, and a heat exchanging tank having a stainless steel corrugated fin type heat exchanger 2 are installed therein. A thickness of a heat accepting unit 2A of the corrugated fin type heat exchanger 2 is set to be less than 2 mm and a thickness of a corrugated fin unit 2B is set to be less than 0.5 mm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid temperature control device such as a water tank or a cooling liquid using a Peltier device, and relates to a liquid such as supplied water by utilizing a heat absorption effect and a heat generation effect of the Peltier device. The present invention relates to a Peltier-type water temperature conditioner that adjusts temperature.

[0002]

2. Description of the Related Art Conventionally, various devices using the Peltier device have been devised. However, the heat resistance of the Peltier device in terms of heat absorption and heat dissipation is large, and the performance of the Peltier device cannot be sufficiently exhibited. .

[0003]

The apparatus using the above-mentioned Peltier element has to be treated to prevent corrosion when passing highly corrosive seawater or the like through the heat exchanger. Therefore, there is a problem that the thermal resistance further increases. In addition, since the Peltier element is crimped to reduce the thermal resistance, the expansion and contraction of the element caused by the Peltier element itself cannot be absorbed, which leads to breakage of the Peltier element.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a Peltier device in which the heat resistance between a Peltier element and a heat exchanger in contact with a liquid is extremely small and the mechanical life is improved. An object of the present invention is to provide a water temperature control device.

[0005]

According to a first aspect of the present invention, there is provided a Peltier-type water temperature control apparatus comprising: a Peltier element; a current control means for controlling a current supplied to the Peltier element; Heat dissipating means having a heat dissipating fin 8 provided so as to transfer heat to the heat absorbing and heat dissipating B surface 1B of the element and a blower fan 6 for discharging exhaust heat to the outside of the device main body;
A stainless steel corrugated fin type heat exchanger 2 provided so as to transfer heat to the heat absorption / radiation A surface 1A of the Peltier element, and a rubber elastic member configured to surround an end of the corrugated fin type heat exchanger. In a Peltier-type water temperature-conditioning apparatus including a heat exchange tank formed of a body 7 and a water retention cover 5 having a water supply port 3 and a drain port 4, a heat receiving portion of the stainless steel corrugated heat exchanger 2 is provided. The thickness of 2A is 2 mm or less, and the thickness of the corrugated fin portion 2B is 0.5 mm or less. Thereby, the thermal resistance can be greatly reduced. Further, the pressure generated by expansion and contraction caused by the Peltier element itself can be absorbed by the rubber elastic body 7 configured to surround the end of the corrugated fin heat exchanger.

According to a second aspect of the present invention, there is provided a Peltier-type water temperature conditioner, wherein the heat radiating means comprises a heat pipe provided with heat radiating fins and a blower fan. This makes it possible to reduce the size of the radiator, and to reduce the size of the entire device.

According to a third aspect of the present invention, there is provided a Peltier-type water temperature control apparatus, wherein the current control means has a temperature sensor for detecting a temperature of a liquid introduced into the water supply port.
The current is controlled according to the detected temperature. Thus, the temperature applied to the liquid introduced from the water supply port can be controlled.

Further, in the Peltier-type water temperature conditioner according to the fourth aspect, a pump is provided on a piping route which is connected to the water supply port and the drain port according to the first to third aspects and passes water. This allows the device itself to suck and discharge liquid.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to more specifically illustrate the present invention,
Some embodiments are described below with reference to the accompanying drawings.

[0010]

Embodiment 1 This embodiment will be described with reference to FIGS. FIG. 1 is a perspective view of the Peltier-type water temperature conditioner of the first embodiment. FIG. 2 is a diagram showing a cross section of the side surface, and the internal structure of the device of this embodiment will be described.

In the present embodiment, a liquid such as water supplied from an external pump or the like is introduced into a heat exchange tank through a water supply port 3, and heat absorption / radiation A of the Peltier element 1 as an electrothermal conversion element is performed.
Corrugated fin heat exchanger 2 with heat transferred from surface 1A
Depending on the pressure at the time of cooling or overheating,
Drain from drain port 4. In addition, the heat absorption of the Peltier element 1
The waste heat generated from the heat radiation B surface 1B is transferred to the heat radiation fins 8 via the heat pipe 9 and is discharged to the outside of the main unit by the blower fan 6.

The cooling and heating operations are controlled by changing the current direction of the DC power supplied from the power supply unit 11 by the control unit 12 and supplying it to the Peltier device.

Further, the water supply port 3 is provided with a temperature sensor 13 for controlling the current supplied to the Peltier element based on the temperature set by the control unit 12.

[0014]

Second Embodiment In the first embodiment, the liquid to be cooled or superheated is introduced and discharged by the pressure of the liquid or the like supplied from an external pump or the like. However, as shown in FIG. A pump is arranged in connection with the water supply port 3 so that the pump can be operated without supply of liquid pressure from outside. Also,
The pump may be arranged at either the water supply port 3 or the drain port 4. Other features are the same as those of the Peltier-type water temperature harmony device of the first embodiment, and the description is omitted.

[0015]

In summary, the present invention improves the mechanical performance and durability by minimizing the thermal resistance to improve the thermal efficiency of the Peltier device and increasing the resistance to highly corrosive liquids such as seawater. Is achieved.

As a result, cooling and overheating of a wide range of liquids can be realized.

[Brief description of the drawings]

FIG. 1 is a front perspective view of a first embodiment.

FIG. 2 is a sectional view of a right side surface of the first embodiment.

FIG. 3 is a front perspective view of a second embodiment.

[Explanation of symbols]

(1) Peltier element (1A) Heat absorption / radiation A
Surface (1B) Heat absorption / radiation B surface (2) Corrugated fin heat exchanger (2A) Heat receiving part
(2B) Corrugated fin section (3) Water supply port (4) Drain port (5) Water retention cover (6) Ventilation fan (7) Rubber elastic body (8) Radiation fin (9) Heat pipe (10) Pump (11) Power supply unit (12) Control unit (13) Temperature sensor

Claims (4)

[Claims] 1. A Peltier device, a current control means for controlling a current flowing through the Peltier device 1, a radiating fin 8 provided so as to be heat-transferred to a heat absorbing / radiating B surface 1B of the Peltier device, and a waste heat. A heat dissipating means having a blower fan 6 for discharging the heat to the outside of the apparatus body; a stainless steel corrugated fin heat exchanger 2 provided so as to transfer heat to the heat absorption / dissipation A surface 1A of the Peltier element; A Peltier-type water temperature conditioner comprising a rubber elastic body 7 configured to surround an end of the exchanger and a heat exchange tank formed by a water retention cover 5 having a water supply port 3 and a drain port 4. At
Heat receiving part 2 of the above stainless steel corrugated heat exchanger 2
A Peltier-type water temperature conditioner wherein the thickness of A is 2 mm or less and the thickness of the corrugated fin portion 2B is 0.5 mm or less. 2. The Peltier-type water temperature conditioner according to claim 1, wherein said heat radiating means comprises a heat pipe having a heat radiating fin and a blower fan. 3. The apparatus according to claim 1, wherein said current control means has a temperature sensor for detecting a temperature of the liquid introduced into said water supply port, and controls said current in accordance with the detected temperature. Peltier water temperature conditioner. 4. A Peltier-type water temperature control apparatus according to claim 1, wherein a pump is provided on a piping route connected to the water supply port and the drain port for passing water.