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Thermoelectric generator

A technology for heat exchangers and boxes, applied in the field of thermoelectric generators, can solve problems such as complex structures

Inactive Publication Date: 2005-09-07
DENSO CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the above-mentioned conventional technology, the thermoelectric generator has an extremely complicated structure as a whole by filling helium gas and by setting a pressurizing device (bellows)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0028] The thermoelectric generator 100 according to the present invention is applied to a vehicle having a water-cooled engine 10 in which electrical energy is recovered due to released thermal energy associated with the cooling of the engine 10 . First, the basic structure will refer to Figure 1-8 to describe. here, figure 1 is a schematic diagram showing the entire structure including the engine 10 . figure 2 , 3 are a front view and a plan view showing the appearance of the thermoelectric generator 100 . 4 and 5 are a plan view and a front view showing the high-temperature-side heat source portion 110 . 6 and 7 are a plan view and a front view showing the low temperature side heat source portion 120 . Figure 8 is an exploded view showing how the high-temperature-side heat source portion 110 , the low-temperature-side heat source portion 120 , and the thermoelectric element 130 are assembled.

[0029] Such as figure 1 As shown in , the engine 10 has an engine refri...

no. 2 example

[0052] A second embodiment of the invention is shown in Figure 9 and 10 middle. The difference between the second embodiment and the above-mentioned first embodiment lies in the respective connectors 140 , 150 . The second embodiment employs a pipe 141a (corresponding to "pipe" in the present invention) having a bellows 142 that expands and contracts according to the distance between both ends of the pipe 141a. The bellows 142a serves as the distance adjuster 140A.

[0053] Such as Figure 10 As shown in , the stack of heat source parts 110, 120 is formed by alternately stacking cold-side heat source parts 120, hot-side heat source parts 110, and placing a tube 141a between each heat source part 110, 120 and burning them integrally. In the stack, the gap between the heat source parts 110 , 120 is set larger than the thickness of the thermoelectric device 130 .

[0054] Here, the hot side heat source part 140 ( Figure 10 The left side in ) makes hot refrigerant pass ove...

no. 3 example

[0059] A third embodiment of the invention is shown in Figure 11 middle. Compared with the first embodiment, in the third embodiment, the stack formed by the hot-side heat source part 110, the cold-side heat source part 120 and the thermoelectric element 130 sandwiched between the lower plate 160 and the upper plate 170 maintains the inner space The vacuum container 190 to a suitable vacuum state is packaged.

[0060] Compared with air, the heat transfer is reduced in vacuum to reduce the heat diffusion from the hot side heat source part 110 to the outside and the heat absorption between the two heat source parts 110, 120 caused by the cold side heat source part 120 temperature difference.

[0061] When the vacuum vessel 190 is not employed, the cold side heat source part 120 is colder than the outside air, and water vapor in the air condenses on the surface of the cold side heat source part 120 , which causes a short circuit or corrosion in the thermoelectric element 130 ....

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Abstract

A heat exchanger of the invention has a plurality of pipes, a water supply tank and support elements. Fluid flows through the pipes. The water supply tank is provided with a core board and a tank body, and is arranged on longitudinal ends of the pipes in a manner of communicating with inner spaces of the pipes. The core board with cross section of approximately arc is fixed on the tank body on two side edges, fixed on the longitudinal ends of the pipes on the middle part, and protrudes towards the pipes relative to the side edges. The inner space is formed by the tank body. Distance is left in the support elements between the two side edges.

Description

technical field [0001] The present invention relates to a thermoelectric generator that generates electricity using the Seebeck effect of a temperature difference acting on a thermoelectric element. Background technique [0002] JP-10-136672-A discloses a conventional thermoelectric generator including a plurality of stacked heat exchangers for alternate heating and cooling and thermoelectric generation modules disposed between the heat exchangers. The heat exchangers communicate with each other through an exhaust gas supply pipe on one end side thereof and an exhaust gas discharge pipe on the other end side thereof so that exhaust gas flows through all the heat exchangers. In particular, each of the exhaust gas supply pipe and the exhaust gas discharge pipe has a plurality of branch pipes directed toward a plurality of heat exchangers for heating. The branch pipes of the exhaust gas supply pipe and the branch pipes of the exhaust gas discharge pipe are connected to and int...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N5/02F01P3/18H01L35/30H01L35/32H02N11/00
CPCH01L35/30H10N10/13
Inventor 山口浩生山中保利稻风宏弥森连太郎
Owner DENSO CORP