Title:
THERMAL CONDUCTIVITY VARIABLE DEVICE AND VOLTAGE CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2016037913
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a thermal conductivity variable device which can suitably control thermal conductivity without causing a structural change resulting from the changeover of the thermal conductivity, and a voltage control device.SOLUTION: A thermal conductivity variable device comprises: a terminal conductivity variable element 2 in which metal and a semiconductor having electronic affinity χS[eV] which is not smaller than a work function of the metal are joined to each other; voltage application means 4 which applies a voltage to the thermal conductivity variable element 2; determination means 5 which determines whether or not it is necessary to raise the thermal conductivity of the thermal conductivity variable element 2; and voltage control means which sets a work function of the semiconductor at φS[eV], also sets an elementary electric charge at e[C], and applies a voltage not lower than (φS-χS)/e[V] to the terminal conductivity variable element 2 by using the voltage application means 4 when the determination means 5 determines that it is necessary to raise the terminal conductivity of the thermal conductivity variable element 2.SELECTED DRAWING: Figure 1
Inventors:
MAEKAWA RYOSUKE
Application Number:
JP2014162158A
Publication Date:
March 22, 2016
Filing Date:
August 08, 2014
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
F01P3/02; C09K5/08; F01N3/20; F01N3/24; F02D45/00; F02F1/10
Attorney, Agent or Firm:
Satoshi Nakamura
Koji Yamamoto
Tatsuo Egami
Koji Yamamoto
Tatsuo Egami
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