Single-path control multifunctional vacuum circuit breaker
A vacuum circuit breaker, single-circuit control technology, applied in high-voltage air circuit breakers, circuits, electrical components, etc., can solve problems such as unsolvable, shaft coordination, etc., to achieve stable and accurate control, avoid contact damage, and avoid bad contact effect of the problem
Pending Publication Date: 2020-11-03
四川艾贝斯科技发展有限公司
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Problems solved by technology
However, the traditional vacuum switch actuator based on the magnetic transmission principle of permanent magnets still drives the permanent magnets in a linear motion, that is, by driving one of the permanent magnets to move in a straight line, the other permanent magnet moves in a straight line. Therefore, the above problems cannot be solved
[0008] In the manual switch and overcurrent protection mechanism of traditional vacuum circuit breakers, the driving part adopts a linear motion push rod or similar components, so other components connected to the driving part cannot be used to cooperate with the rotating shaft, which also leads to the above-mentioned problems that cannot be solved
Method used
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Embodiment Construction
[0040] The present invention will be further described below in conjunction with accompanying drawing:
[0041] Such as Figure 1-Figure 6 As shown, the multi-function vacuum circuit breaker with single control of the present invention includes a manual switch and an overcurrent protection mechanism 5, a vacuum switch actuator 2 and an overcurrent trigger mechanism 3, and the vacuum switch actuator 2 includes a vacuum cavity (See Figure 3-Figure 5 The first vacuum chamber 221 and the second vacuum chamber 205), the vacuum chamber is installed with the static contact 220 of the incoming line end, the static contact 223 of the outgoing line end and the moving contact 218, and the static contact 220 of the incoming line end The outer end of the outer end and the outer end of the outlet end static contact 223 are respectively placed outside the vacuum chamber, the moving contact 218 of the vacuum switch actuator 2 is driven by the driver of the manual switch and the overcurrent ...
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The invention discloses a single-path control multifunctional vacuum circuit breaker. A vacuum switch executing mechanism comprises a vacuum cavity, and a wire inlet end static contact, a wire outletend static contact and a moving contact are installed in the vacuum cavity, wherein the moving contact is driven by a manual switch and a driving piece of an overcurrent protection mechanism, and themanual switch is connected with the wire inlet end static contact and the wire outlet end static contact. The vacuum switch executing mechanism further comprises a first permanent magnet which is arranged outside the vacuum cavity and can drive the moving contact to move linearly through a magnetic force; a driving part of the manual switch and overcurrent protection mechanism is a rotating shaft,and the rotating shaft penetrates through a magnet center hole of the first permanent magnet and can drive the first permanent magnet to rotate synchronously. The rotating shaft is adopted as a driving part of the manual switch and overcurrent protection mechanism, the transmission connection between the rotating shaft and the moving contact arranged in the vacuum cavity is achieved through magnetism of the first permanent magnet, the occupied space is smaller, the miniaturization design and accurate control of the whole circuit breaker are facilitated, and the circuit breaker is especially suitable for on-off control of a phase line of a single-phase low-voltage alternating-current power supply.
Description
technical field [0001] The invention relates to a vacuum circuit breaker, in particular to a single-circuit controlled multifunctional vacuum circuit breaker. Background technique [0002] Vacuum circuit breaker, also known as vacuum switch, is a circuit breaker with contacts placed in a vacuum cavity. It is named for its arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing. Compared with air Air circuit breakers (also known as air switches) have the advantages of small size, light weight, suitable for frequent operations, and no maintenance for arc extinguishing, and have been widely used in high and low voltage distribution networks. [0003] The basic structure of a vacuum circuit breaker includes a vacuum switch actuator (including a vacuum cavity and a moving contact, a static contact, etc.), a manual switch mechanism, an overcurrent protection decoupling (that is, decoupling and hooking) mechanism and an overcurrent triggering m...
Claims
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IPC IPC(8): H01H33/666H01H33/664
CPCH01H33/664H01H33/666
Inventor 何勇
Owner 四川艾贝斯科技发展有限公司