A kind of miniature circuit breaker with multiple linkage tripping
A small circuit breaker and linkage tripping technology, which is applied to circuits, parts of protective switches, electrical components, etc., can solve problems that do not involve multiple linkage tripping small circuit breakers
Inactive Publication Date: 2017-03-08
JIANGSU POWERLOTUS ELECTRIC APPLIANCE +1
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- Description
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Problems solved by technology
The miniature circuit breakers in the prior art do not involve multiple linkage tripping miniature circuit breakers
Method used
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[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0020] Such as figure 1 As shown, the linkage part 500 is connected to a plurality of miniature circuit breakers 10, 10', 10", if a certain miniature circuit breaker trips, the remaining miniature circuit breakers will also trip in linkage.
[0021] refer to Figure 1 to Figure 3 , a multiple linkage tripping miniature circuit breaker, including several miniature circuit breakers linked with each other, wherein a single circuit breaker includes a tripping part 300, and the tripping part 300 includes a reciprocating swing between position one and position two The curved armature 340 and the trip bar 420 hung in the hanging hole in the middle of the armature 340 at the front end, the trip bar 420 is fixed on the wall of the circuit breaker through the rotating shaft 425; the l...
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The invention discloses a multi-intertrip miniature circuit breaker. The multi-intertrip miniature circuit breaker comprises a plurality of miniature circuit breaker bodies which are in linkage, each circuit breaker body comprises a tripping portion and a linkage portion, each tripping portion comprises a bent armature swinging between a first position and a second position in a reciprocating mode and a tripping rod, the front ends of the tripping rods are hung in hanging holes in the middles of the armatures, and the tripping rods are fixed to the shell walls of the circuit breaker bodies through first rotary shafts. The linkage portions are located above the tripping rods, each linkage portion comprises a cylindrical parent body, a connecting pin, a connecting rod and an abutting rod, the cylindrical parent bodies are movably clamped on openings in the two ends of the armatures through middle grooves, each connecting pin is clamped at one end of the corresponding parent body, the ends, extending out of the parent bodies, of the connecting rods are fixed to the tripping rods through second rotary shafts, and the abutting rods are arranged on the sides, facing the armatures, of the connecting rods. When the first circuit breaker body is disconnected, the parent body in the first circuit breaker body drives the parent body in the second circuit breaker body to rotate clockwise, the abutting rod of the first circuit breaker body abuts against the armature in the second circuit breaker body, the armature in the second circuit breaker body is bent and offset, the tripping rod in the second circuit breaker is pulled out of the hanging hole of the second circuit breaker body, and a circuit of the second circuit breaker body is disconnected.
Description
technical field [0001] The invention relates to a circuit breaker, in particular to a small circuit breaker with multiple linkage trips. Background technique [0002] Usually a miniature circuit breaker (Miniature Circuit Breaker, MCB) is installed on the circuit to protect the home or industrial switchboard system. It is a device that blocks overload, overcurrent or short-circuit current and dangerous currents that appear on simple lines, and protects the lower end or load. . The tripping device is the main accessory of the miniature circuit breaker. When a dangerous current such as overcurrent is connected, it can open the contact to block the inflow of current. The miniature circuit breakers in the prior art do not involve multiple linked tripping miniature circuit breakers. [0003] Based on the above, it is necessary to develop a miniature circuit breaker with multiple linkage trips. Contents of the invention [0004] In order to overcome the deficiencies of the pr...
Claims
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IPC IPC(8): H01H71/12H01H9/26
CPCH01H9/26H01H71/1045
Inventor 赵向青金德贤
Owner JIANGSU POWERLOTUS ELECTRIC APPLIANCE