TEMPERATURE FIXING DEVICE FOR SPEAKER

Japanese Patent JP2017188634

A

PROBLEM TO BE SOLVED: To solve the problem that a latent heat storage material utilizing heat balance of a so-called phase change from a solid phase to liquid phase or from a liquid phase to a solid phase is variously utilized as an energy saving technique using natural energy, or a paraffin-based latent heat storage material capable of arbitrarily selecting a phase change temperature is variously utilized in particular as a cooling or temperature fixing material, the material is applied to a magnetic circuit part of a speaker to attain cooling and temperature fixing of generated heat, stabilize reproduction frequency characteristics that are changed by influences of heat, and cancel a change in sound quality, but heat conductivity of the paraffin-based latent heat storage material is low, heat transfer from an electronic apparatus defined as a cooling object is delayed and in particular, a sudden temperature change cannot be adapted.SOLUTION: A metal porous body or a metal powder body in a continuous pore structure consisting of a metal of high heat conductivity is combined with a latent heat storage material, thereby improving heat conductivity of the latent heat storage material, attaining improvement of heat transfer and adapting a sudden temperature change of an electronic apparatus such as a magnetic circuit part of a speaker.SELECTED DRAWING: Figure 6

JPH02281790	ELECTRONIC CIRCUIT DEVICE
WO/2015/008416	SERVER ROOM COOLING SYSTEM
WO/1994/003849	ARRANGEMENT FOR CONTROLLING THE TEMPERATURE OF ELECTRONIC COMPONENTS

URYU MASARU

JP2016084003A

October 12, 2017

April 04, 2016

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URYU MASARU

H05K7/20; C09K5/06; F28D20/02

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