Miniature circuit breaker
A miniature circuit breaker and guide column technology, which is applied in the direction of circuits, protection switch operation/release mechanisms, electrical components, etc., can solve the problems of poor balance stability, accidental decoupling, etc., and achieve the effect of improving the stability of the connection
Pending Publication Date: 2022-02-25
JIANGSU ELECTRIC POWER CO +2
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Problems solved by technology
[0002] In the field of circuit breakers, a circuit breaker 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 within a specified time. A circuit breaker is generally composed of a contact system, an arc extinguishing system, an operating mechanism, a decoupling mechanism, a casing, etc. Among them, a miniature circuit breaker is an important part of a circuit breaker. It is very important, and the existing miniature circuit breakers include at least two locks and jumpers that can be disconnected, and because the locks and jumpers need to switch between connection and disconnection, the current design method is to set the connection when the locks and jumpers are connected. It is in a balanced state, but the balance state of the connection between the lock and jumper is poor in stability, and it is easy to break the balance of the lock and jumper during strenuous exercise, resulting in accidental decoupling
Method used
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[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the implementation methods in the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0046] In the drawings, the shapes and dimensions may be exaggerated for clarity, and the same reference numerals will be used throughout to designate the same or like parts.
[0047] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the specification of the p...
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The invention relates to a miniature circuit breaker. The circuit breaker comprises: an unhooking mechanism which comprises a lock catch and a jump pin which are effectively connected; an execution component used for pushing the lock catch to enable the lock catch to be separated from the jump pin to complete unhooking action; and an operating part used for driving the jump pin to reset so as to enable the unhooking mechanism which completes unhooking to form effective connection again, wherein the relative position of the lock catch and the jump pin is positioned through a guide post and a guide hole, and the guide post extends into the guide hole to limit the relative position of the lock catch and the jump pin so as to realize effective connection, so that the stability when the lock catch and the jump pin are connected is improved to avoid accidental unhooking of the lock catch and the jump pin.
Description
technical field [0001] The invention relates to the field of circuit breakers, in particular to a miniature circuit breaker. Background technique [0002] In the field of circuit breakers, a circuit breaker 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 within a specified time. A circuit breaker is generally composed of a contact system, an arc extinguishing system, an operating mechanism, a decoupling mechanism, a casing, etc. Among them, a miniature circuit breaker is an important part of a circuit breaker. It is very important, and the existing miniature circuit breakers include at least two locks and jumpers that can be disconnected, and because the locks and jumpers need to switch between connection and disconnection, the current design method is to set the connection when the locks and jumpers are connected. Be in a state of balance, but the b...
Claims
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IPC IPC(8): H01H71/10H01H71/12
CPCH01H71/10H01H71/1054H01H71/121
Inventor 程凯高志军
Owner JIANGSU ELECTRIC POWER CO