Komatsu Corporation

Mineo Tokuda

Masanobu Seki

Hideaki Ohkubo

A temperature control apparatus where it is easy to replace a heat exchange unit to enhance the maintainability and the space efficiency and which can absorb the thermal expansion/shrinkage of a heat exchanger is provided. The temperature control apparatus has a heat exchangerwith a passagefor passing a fluid; a connecting pipeconnected to the passage of the heat exchanger; a passage blockwith a passage for passing the fluid to the heat exchanger; a relay blockfor forming a passage between the passage of the passage block and the connecting pipe; and sealing meansfor connecting the connecting pipe movably to the passage of the relay block. In the temperature control apparatus, the length of the connecting pipeis made substantially equal to or slightly shorter than the spacing between the heat exchangerand the passage block

Temperature control apparatus

A sealing structure of the thermoelectric conversion device, which has high sealing capability and is easy to manufacture, is provided. A thermoelectric conversion circuit utilizing Peltier effect is interposed between two metal heat exchanger plates. The O-ring interposed between the outer edge portions of the heat exchanger plates seals the gap formed between the outer edge portions of the heat exchanger plates along the whole periphery. The connector for connecting the thermoelectric conversion circuit to the external power supply is inserted into the through hole formed on the heat exchanger plate. The O-ring fitted on the connector seals the gap between the connector and the through hole spontaneously, when the connector is inserted into the through hole.

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Hiratsuka, Japan

Mineo Tokuda