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Thermoelectric generator

A technology for thermoelectric generators and engines, which is applied to thermoelectric devices, engine components, combustion engines, etc., can solve the problems of difficulty in fully maintaining the temperature difference of thermoelectric components and deterioration of recovery efficiency.

Inactive Publication Date: 2006-06-28
DENSO CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the thermal conductivity is increased, it is difficult to sufficiently maintain the temperature difference on the surface of the thermoelectric element
And, this leads to deterioration of the recovery efficiency of recovering electric energy (ie, generating electric power)

Method used

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Examples

Experimental program
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Embodiment Construction

[0016] Embodiments of the present invention will be described below with reference to the drawings.

[0017] see figure 1 , the thermoelectric generator system 100 is mainly composed of a thermoelectric generator 110 and a control device 120 for controlling the operation of the thermoelectric generator 110 . The thermoelectric generator system 100 is used in a motor vehicle having a water-cooled engine 10 for recovering electrical energy from waste heat energy of the engine 10 . Specifically, in the thermoelectric generator 110 , electric power is generated at the thermoelectric element 113 using a temperature difference between the high-temperature heat source portion 111 and the low-temperature heat source portion 112 .

[0018] First, see the figure 1 The basic configuration of the thermoelectric generator system 100 is described. The engine 10 is provided with an engine cooling water line (first line) 20 . The main passage of the engine cooling water circuit 20 is cons...

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PUM

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Abstract

The present invention provides a thermoelectric generator (110), comprising: a high temperature heat source part (111) disposed on a first passage (23) through which a first fluid for cooling an engine (10) flows; a low temperature heat source part (111) 112), arranged on a second channel through which a second fluid having a temperature lower than that of the first fluid flows; and a thermoelectric element (113) for utilizing one of the high-temperature heat source portion (111) and the low-temperature heat source portion (112) The temperature difference between them generates electrical power. The first channel (23) is included in the first circuit (20), in which the engine (10) and the first radiator (21) for cooling the first fluid are connected in a circuit through the main channel. And, the first channel (23) and the first heat sink (21) are arranged in the first line (20) side by side. The second channel is contained in a second line (30) separate from the first line and has a second heat sink (31) for cooling the second fluid.

Description

technical field [0001] The present invention relates to thermoelectric generators that recover electrical energy from waste heat generated in engines using thermoelectric elements. Background technique [0002] It is known to recover electric power from waste heat generated in an internal combustion engine (hereinafter referred to as an engine) using a thermoelectric element. For example, in the engine cooling water circulation system disclosed in Japanese Unexamined Patent Publication No. JP-A-10-238406, electric energy is recovered using cooling water circulating in a cooling water line connecting the engine and the A first heat sink of the high-temperature heat source portion of the thermoelectric element and a second heat sink of the low-temperature heat source portion of the thermoelectric element cooled by air or water. And, the high-temperature heat source part is constituted by a tank, and is connected to the first radiator connected in series in the cooling water l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02G5/00
CPCF01P3/20F01P7/165F01P2007/146F01P2025/50F02G5/00Y02T10/12H10N10/00
Inventor 山口浩生山中保利森连太郎稻冈宏弥
Owner DENSO CORP