Double-contact actuating mechanism of switching device and circuit breaker
A technology for switching electrical appliances and action mechanisms, which is applied to the operation/release mechanism of protection switches, circuit breaker contacts, circuit breaker parts, etc. problems, to achieve the effect of improving the convenience of assembly, the convenience of assembly, and reducing the overall size
Pending Publication Date: 2021-11-19
SHANGHAI YONGJI ELECTRICAL HLDG
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Problems solved by technology
[0004] However, the overall size of the existing circuit breaker is not small enough, the internal structure is complicated, and the compactness of the mechanism is not high
Method used
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[0133] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0134] It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. within the scope covered by the disclosed technical content. At the same time, terms such as "upper", "lo...
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The invention provides a double-contact actuating mechanism of a switching device and a circuit breaker. The double-contact actuating mechanism comprises a shell, an operating mechanism and acontact mechanism, wherein the operating mechanism comprises a contact support and a lock catch, the contact support is pivoted to the shell in a resettable mode through a hinge structure and located at the communicating position of the two assembling cavities, two limiting clamping grooves are symmetrically formed in the two opposite sides of the arc isolation body, the lock catch comprises an arc isolation cover body in an arc plate shape, an auxiliary arc isolation plate is arranged on one side of the arc isolation cover body in the circumferential direction, the auxiliary arc isolation plate is used for shielding an arc leak occurring between the arc isolation cover body and the arc isolation body when the arc isolation cover body rotates relative to the arc isolation body; and the contact mechanism comprises two moving contacts. The phenomenon of arc transverse channeling between the two assembling cavities can be effectively avoided, the assembling convenience between the contact support and the moving contact is greatly improved, the compactness of parts of the switching device can be improved, and the overall size of the switching device is reduced.
Description
technical field [0001] The invention relates to the technical field of switching appliances, in particular to a double-contact action mechanism of a switching appliance and a circuit breaker. Background technique [0002] A circuit breaker is 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. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The division of high and low voltage boundaries is relatively vague. Generally, those above 3kV are called high-voltage electrical appliances. [0003] Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off the circuit when they are severely overloaded, short-circuited, or under-voltage. Its function is equivalent to a fus...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01H73/18H01H73/04H01H71/24H01H71/38
CPCH01H73/18H01H73/04H01H71/24H01H71/38
Inventor 高汉林黄明俊戴海龙刘章良杨述吴子嘉
Owner SHANGHAI YONGJI ELECTRICAL HLDG