Handcart type direct-current circuit breaker and connection contact thereof
A DC circuit breaker and handcart-type technology, applied in the direction of protective switch terminals/connections, pull-out switch cabinets, electrical components, etc., can solve the problems of many assembly parts and complex contact finger structures, and achieve low processing costs and guarantee Self-strength, the effect of improving the flow capacity
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Example Embodiment
[0057] The specific embodiment 1 of the handcart-type DC circuit breaker provided by the present invention:
[0058] In the handcart-type DC circuit breaker provided by the present invention, the front ends of the incoming and outgoing wire ends 13 of the circuit breaker body are respectively fixed and assembled with special-structured connection contacts. 1 As a flow medium, it is used to make the inlet and outlet terminals 13 of the handcart-type DC circuit breaker and the main circuit busbar of the adapter switch cabinet conductively connected, and, for the convenience of assembly, a front slot is correspondingly provided on the conductive connection seat 1 4 and the rear slot 14, and install the strap contact fingers on the two sides of the slot walls of each slot, and the inlet and outlet ends 13 of the circuit breaker body are inserted into the rear slot 14 and are in electrical contact with the corresponding strap contacts. The main circuit busbar of the switch cabinet ...
Example Embodiment
[0074] The specific embodiment 2 of the handcart-type DC circuit breaker provided by the present invention:
[0075] The main difference between it and Embodiment 1 is that in Embodiment 1, the conductive connection seat is a one-piece machined part, and two slots are formed on it by integral machining. In this embodiment, the conductive connection seat is formed of a front seat body and a rear seat body that are fixedly assembled in separate parts. The front seat body is provided with a front slot, and the rear seat body is provided with a rear slot. The front seat body and the rear seat body can pass through The fixing bolts are fixedly connected. In order to ensure effective contact, the butt joints of the two bases can preferably be plugged.
Example Embodiment
[0076] The specific embodiment 3 of the handcart-type DC circuit breaker provided by the present invention:
[0077] The main difference between it and Example 1 is that in Example 1, the long side of the rectangular main circuit busbar extends in the up-down direction, and the long side of the rectangular inlet and outlet lines also extends in the up-down direction. Correspondingly, the lengths of the two slots are equal to Extend up and down. In this embodiment, when the long sides of the rectangular inlet and outlet wire ends also extend in the up-down direction, and the long sides of the rectangular main circuit busbars extend in the left-right direction, the rectangular main circuit busbars and the rectangular inlet and outlet wire ends are arranged in a cross shape , it is necessary to make the length of the front slot extend square and the length of the rear slot to extend vertically.
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