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Heat dissipating means for circuit-breaker and circuit-breaker with such a heat dissipating means

Shailendra Singh (Institutionen för material- och tillverkningsteknik, Högspänningsteknik)
(2012)
[Patent]

The present invention discloses a circuit breaker comprising: a vacuum chamber; a fixed contact and a movable contact disposed in a vacuum chamber; a fixed contact stem supporting said fixed contact in said vacuum chamber and extending outwards from a first end of said vacuum chamber; a movable contact stem supporting said movable contact in said vacuum chamber for reciprocal movement between contact with and separated from said fixed contact, and extending outwards from a second end of said vacuum chamber; a first electrical conductor coupled to said fixed contact stem; a second electrical conductor coupled to said movable contact stem; at least one heat dissipating means disposed for at least one of said fixed contact and movable contact; wherein, the heat dissipating means is hollow and has an external surface and internal surface; a plurality of fins provided on said internal surface constitute a passage through which air is convected in a direction parallel to that of reciprocal movement of movable contact stem.



Denna post skapades 2015-09-13. Senast ändrad 2015-09-22.
CPL Pubid: 222367

 

Institutioner (Chalmers)

Institutionen för material- och tillverkningsteknik, Högspänningsteknik (2005-2017)

Ämnesområden

Elektroteknik

Chalmers infrastruktur