Safety protection device for circuit breaker
A technology of safety protection device and circuit breaker, which is applied to emergency protection devices, protection switches, parts of protection switches, etc., can solve problems such as potential safety hazards and safety accidents, and achieve the effect of simple structure, effective operation and safety assurance.
Active Publication Date: 2016-07-06
EATON INTELLIGENT POWER LTD
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, this has security implications
For example, due to the negligence of the operator, the circuit breaker is in the on state, but at the same time the upper circuit is not cut off, it is easy to cause a safety accident.
Method used
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[0036] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings. Although the drawings are provided for the purpose of illustrating some embodiments of the invention, the drawings are not necessarily to scale or shape of particular embodiments, and certain features may be exaggerated, removed, partially sectioned, or shown schematically to facilitate better understanding. A good explanation of the disclosure of the present invention. Appearances of the phrase "in the drawings" or similar terms in the specification do not necessarily refer to all drawings or examples.
[0037] Certain directional terms used hereinafter to describe the drawings, such as "upper," "lower," "left," "right," "upward," "downward," and other directional terms, are to be understood as The directions described with refer...
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The invention provides a safety protection device (3) for a circuit breaker (2). The circuit breaker (2) is configured to be inserted into a circuit breaker base (1) and electrically connected thereto. The safety protection device (3) includes : a push rod (31), configured to be movable to abut against or break away from the tripping mechanism of the circuit breaker (2); a control profiling structure (32) supported on the circuit breaker base (1), comprising a plurality of functional profile segments (321, 322, 323); a lever structure (33) rotatably mounted to said circuit breaker (2), said lever structure (33) having a first lever end and a second lever end, Wherein the first lever end is connected to the push rod (31), and the second lever end is configured to slidably abut against the functional profile segment, wherein, during the insertion process of the circuit breaker (2) into the circuit breaker base (1) wherein, the second lever end slides on at least one of the functional profile segments to push the push rod (31) against the tripping mechanism and disable the tripping mechanism from working. The invention also provides a circuit breaker assembly and a method of installing a circuit breaker.
Description
technical field [0001] The invention relates to the field of circuit breakers, in particular to a safety protection device for circuit breakers. The invention also relates to a circuit breaker with such an installation protection device, and a method of installing a circuit breaker. Background technique [0002] A circuit breaker generally refers to a switching device that can close, carry and break current under normal circuit conditions, and can close, carry and break current under abnormal circuit conditions (including short-circuit conditions) within a specified time. The circuit breaker is usually installed in the switchgear, specifically installed in, for example, a plug-in base, and plays a role of current protection. Here too, the plug-in base must first be installed in the switch cabinet and connected to the circuit. Therefore, during the insertion process of the circuit breaker, it must be ensured that it is in the disconnected state. [0003] A method usually a...
Claims
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IPC IPC(8): H01H71/12
CPCH01H71/128H01H9/22
Inventor 郭顺风周秀英周辉唐铭
Owner EATON INTELLIGENT POWER LTD