发明名称 |
Miniature circuit breaker with improved longevity. |
摘要 |
<p>A circuit breaker device has a chamber in which is disposed a single break contact system using low contact resistance material mounted on movable and stationary supports arranged in a loop configuration in order to direct arcs between the contacts through an arc chute into a remote portion of the chamber. A push-button is connected through a kinematic linkage which transfers motion using minimal frictional engagement to a movable contact to bring the movable contact into and out of engagement with a stationary contact and to latch the contacts in engagement during normal operation. A cantilevered current carrying bimetal transfers motion caused by I R heating of the bimetal to an ambient compensating bimetal connected to the latch mechanism. The kinematic linkage includes a latch surface which engages a rollable cylindrical reaction surface of the latch mechanism to cause the movable contact to come into engagement with the stationary contact upon depression of the push-button. Upon overload, the latch mechanism is displaced with the latch surface moving away from the reaction surface allowing return springs to return the push-button to its unactuated position and separate the contacts.</p> |
申请公布号 |
EP0285340(A2) |
申请公布日期 |
1988.10.05 |
申请号 |
EP19880302675 |
申请日期 |
1988.03.25 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
COBB III, CARLETON M.;HIRSBRUNNER HANS G.;GONSALVES EDWARD M.;JENNE RICHARD L.;NOTT SEPIDEH H.L. |
分类号 |
H01H71/14;H01H71/12;H01H71/16;H01H71/50;H01H73/18;H01H73/22;H01H73/30 |
主分类号 |
H01H71/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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