JPS6420639U

JPS6420639U -

Info

Publication number: JPS6420639U
Application number: JP11698587U
Authority: JP
Priority date: 1987-07-28
Filing date: 1987-07-28
Publication date: 1989-02-01

Description

[Brief explanation of the drawing]

第１図はこの考案の第１の実施例の横断面図、
第２図はその−線断面図、第３図は第１図
−線断面図、第４図は第２の実施例の横断面図
、第５図はその−線断面図、第６図は従来例
の概略平面図、第７図はその断面図、第８図は他
の従来例のバイメタル通電タイプの概略平面図、
第９図はその断面図、第１０図はさらに他の従来
例のバイメタル非通電タイプの概略平面図、第１
１図はその断面図、第１２図はさらに他の従来例
の横断面図、第１３図はその−線断面図
、第１４図は飛散物の飛散状態を説明する説明図
、第１５図および第１６図は電流ヒユーズの接続
用スペース板の位置ずれ状態を説明する説明図、
第１７図はアークによる短絡状態を説明する説明
図、第１８図はアーク電流および電圧波形図であ
る。１……基台、２……バイメタルスイツチ、３…
…電流ヒユーズ、４……第１の端子、５……第２
の端子、１１……固定接点、１２……可動接点、
１７……ヒユーズ部、１８，１９……接続用スペ
ース板、２１……接続部、２２……アーク遮へい
板。 FIG. 1 is a cross-sectional view of the first embodiment of this invention;
FIG. 2 is a cross-sectional view taken along the - line, FIG. 3 is a cross-sectional view taken along the line shown in FIG. 1, FIG. 4 is a cross-sectional view of the second embodiment, FIG. A schematic plan view of a conventional example, FIG. 7 is a sectional view thereof, and FIG. 8 is a schematic plan view of another conventional bimetal conductive type.
FIG. 9 is a cross-sectional view thereof, and FIG. 10 is a schematic plan view of another conventional bimetal non-current-carrying type.
1 is a cross-sectional view of the same, FIG. 12 is a cross-sectional view of another conventional example, FIG. 13 is a cross-sectional view of the conventional example, FIG. 14 is an explanatory diagram illustrating the state of scattered objects, FIG. 16 is an explanatory diagram illustrating the misalignment of the space plate for connecting the current fuse;
FIG. 17 is an explanatory diagram illustrating a short circuit state due to an arc, and FIG. 18 is an arc current and voltage waveform diagram. 1... Base, 2... Bimetal switch, 3...
...Current fuse, 4...First terminal, 5...Second terminal
terminal, 11...fixed contact, 12...movable contact,
17... Fuse part, 18, 19... Connection space plate, 21... Connection part, 22... Arc shielding plate.

Claims

[Claims for Utility Model Registration] (1) A base having a first terminal and a second terminal arranged side by side at one end, and a fixed contact disposed on the surface of the base to the first terminal. a bimetallic switch, a current fuse having connecting space plates formed at both ends of a narrow fuse part, one of the connecting space plates being welded to the second terminal, and a current fuse for connecting the current fuse. A thermal protector comprising a connecting portion connecting the other side of the space plate and the movable contact of the bimetal switch,
An arc shielding plate that is higher than at least the connection space plate is erected on the base between the fixed contact and the movable contact and the connection space plate connected to the second terminal. Thermal protector. (2) The thermal protector according to claim (1), wherein the connection space plate connected to the second terminal is located at a higher position than the fixed contact. (3) The bimetal switch is a bimetal non-energizing type consisting of a movable spring plate and a bimetal, and the movable spring plate, the connection portion, and the current fuse are integrated by a planar U-shaped conductive plate with the connection portion in the middle. 2. The thermal protector according to claim (2), wherein the thermal protector is formed in a manner that the connecting portion is fixed to the base. (4) The bimetal switch is a bimetal non-energized type consisting of a movable spring plate and a bimetal, and the bimetal is located between the movable spring plate and the base. The thermal protector described in paragraph (3).