Small circuit breaker
AssigneeLsis Co., Ltd.
InventorsKwangwon LEE, Seungjin HAM
Life of this patent
Estimating the term…
Abstract
Disclosed is a small circuit breaker. The small circuit breaker according to an embodiment of the present invention is provided with an arc guiding portion at a movable contact carrier. Accordingly, an arc generated as a fixed contact and a movable contact are separated from each other can be smoothly discharged to the outside, along the arc guiding portion. Thus, even in a case that an additional arc chamber is not provided, a generated arc can be discharged smoothly. As a result, damage of the fixed contact and the movable contact, which occurs when an arc is positioned near the fixed contact or the movable contact for an excessively-long time, can be prevented.
Claims14
A small circuit breaker, comprising:
- a fixed contact carrier having a fixed contact;
- a movable contact carrier having a movable contact formed to contact or to be separated from the fixed contact;
- and
- a housing configured to accommodate therein the fixed contact carrier and the movable contact carrier,
- wherein an arc outlet is formed at one side of the housing,
- wherein an arc guiding portion extended to a direction opposite to the fixed contact carrier and towards the arc outlet so as to guide an arc generated when the movable contact is separated from the fixed contact, to a direction opposite to the fixed contact, is provided at an end of the movable contact carrier, and
- wherein no arc chamber is provided on a virtual line extended from an end of the arc guiding portion to the arc outlet.
(canceled)
Dependencies are inferred from the claim text.