JPH0485552U

JPH0485552U -

Info

Publication number: JPH0485552U
Application number: JP12832890U
Authority: JP
Priority date: 1990-11-29
Filing date: 1990-11-29
Publication date: 1992-07-24

Description

[Brief explanation of the drawing]

第１図……本件考案の第１の実施例の分解図、
第２図……同上組み立て断面図、第３図……本
件考案の第２の実施例の分解図、第４図……同上
組み立て断面図、第５図……従来例の分解図、
第６図……同上組み立て断面図。１……基台、２……カバー、５，６……接点、
７……排気孔、１１，１２……基台溝、１００，
１１０……排気板、１０１……絶縁板、１０２…
…冷却板、１０３，１１１……排気小孔、２００
……防塵排気フイルター。 Fig. 1...An exploded view of the first embodiment of the present invention.
Fig. 2... Same as above, assembled sectional view, Fig. 3... Exploded view of the second embodiment of the present invention, Fig. 4... Same as above, assembled sectional view, Fig. 5... Exploded view of the conventional example,
Figure 6...Same as above. Assembly sectional view. 1...Base, 2...Cover, 5, 6...Contact,
7... Exhaust hole, 11, 12... Base groove, 100,
110...Exhaust plate, 101...Insulating plate, 102...
...Cooling plate, 103, 111...Exhaust hole, 200
...Dust-proof exhaust filter.

Claims

[Scope of claim for utility model registration] (1) A circuit breaker that has contacts and a contact opening/closing mechanism inside a body consisting of a base and a cover, and has an exhaust hole for discharging arc gas generated by opening and closing the contacts to the outside of the body. In the exhaust hole, the exhaust hole is provided with an exhaust plate having a small exhaust hole, and a breathable dustproof filter arranged at an appropriate distance from the exhaust plate and having a pore area that is at least approximately the same as that of the small exhaust hole. Dust-proof exhaust structure for circuit breakers, etc. (2) The exhaust plate is composed of an insulating plate and a metal cooling plate with small exhaust holes, and the exhaust plate is arranged inside the vessel, and the breathable dustproof filter is placed as an insulator on the outside of the vessel. A dust-proof exhaust structure for a circuit breaker, etc. as set forth in claim (1) of the utility model registration claim. (3) The exhaust plate is provided as an insulator on the outside of the vessel,
The dust-proof exhaust structure for a circuit breaker or the like as claimed in claim (1) of the registered utility model, wherein the breathable dust-proof filter is made of metal and arranged inside the container body.