JPS5982987U

JPS5982987U - heat generating device

Info

Publication number: JPS5982987U
Application number: JP17964082U
Authority: JP
Inventors: 小谷　捷; 斉藤　金一
Original assignee: ティーディーケイ株式会社
Priority date: 1982-11-26
Filing date: 1982-11-26
Publication date: 1984-06-05
Also published as: JPS64715Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の発熱装置の分解図、第２図は同じくその
正面断面図、第３図は正特性サーミスタの電流時間特性
図、第４図は従来の発熱装置における電極端子板の拡大
斜視図、第５図は本考案に係る発熱装置の分解図、第６
図は同じく正面部分断面図、第７図は同じく要部の平面
図、第８図は本考案に係る発熱装置の要部における斜視
図である。１・・・ケース、２・・・凹部、３・・・電極端子板、
５・・・電極端子板、４・・・正特性サーミスタ、６・
・・絶縁板、７・・・放熱板、３４・・・狭幅部分、イ
・・・過電流溶断部、１０３・・・陥没部。第３図Fig. 1 is an exploded view of a conventional heat generating device, Fig. 2 is a front sectional view thereof, Fig. 3 is a current-time characteristic diagram of a positive temperature coefficient thermistor, and Fig. 4 is an enlarged perspective view of an electrode terminal plate in a conventional heat generating device. 5 is an exploded view of the heat generating device according to the present invention, and FIG.
7 is a plan view of the main part, and FIG. 8 is a perspective view of the main part of the heat generating device according to the present invention. DESCRIPTION OF SYMBOLS 1... Case, 2... Recessed part, 3... Electrode terminal board,
5... Electrode terminal plate, 4... Positive characteristic thermistor, 6...
...Insulating plate, 7... Heat sink, 34... Narrow width part, A... Overcurrent fusion part, 103... Depression part. Figure 3

Claims

[Scope of utility model registration request]

(1) A positive temperature coefficient thermistor having electrodes on both sides, a pair of electrode terminal plates that are in contact with the electrodes of the positive temperature coefficient thermistor and have a lead-out terminal portion, and an electrically insulating plate connected to at least one of the electrode terminal plates. - a heat-resistant insulating case having a heat dissipation plate stacked one on top of the other, and a recess for accommodating the positive temperature coefficient thermistor and the electrode terminal plate, and an overcurrent fusing portion is provided in at least one of the electrode terminal plates; , the overcurrent fusing portion is a narrow portion of the electrode terminal plate disposed on the bottom side of the heat-resistant insulating case that is housed in the recess of the heat-resistant insulating case and does not come into contact with the PTC thermistor. A heat generating device characterized in that a recessed portion is provided on the bottom surface of the heat-resistant insulating case facing the narrow portion.

(2) The heat-resistant insulating case has a protrusion in the recess that prevents the narrow portion from coming into contact with the positive temperature coefficient thermistor. Heat generating device.

(3) The heat generating device according to claim 1 or 2, wherein the electrode terminal plate having the overcurrent fusing portion is constituted by a spring electrode terminal plate.