Vacuum circuit breaker
A vacuum circuit breaker, vacuum technology, applied in the direction of circuit breaker components, circuits, protection switch components, etc., can solve the problems of lack of vacuum effect, vacuum interrupter seal failure, etc., to reduce openings and ensure sealing sexual effect
Active Publication Date: 2020-07-31
上海振能信息科技有限公司
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Problems solved by technology
[0002] Vacuum circuit breaker means that the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; the existing circuit breaker is for example: the Chinese invention patent with the patent number 2016102325011 discloses a vacuum circuit breaker, including the moving end conductive A rod and a conductive support cylinder, the conductive support cylinder is provided with a spring assembly for driving the conductive rod at the moving end. In the support cylinder, because the vacuum circuit breaker drives the contacts by pushing the insulating pull rod, and then drives the movable end conductive rod through the spring to drive the contact between the movable and static heads to complete the energization; because the movable end conductive rod enters and exits in the vacuum interrupter, In turn, the sealing failure of the vacuum interrupter can not achieve the vacuum effect
Method used
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Embodiment Construction
[0028] The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.
[0029] Examples, see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, a vacuum circuit breaker includes a wire inlet hole 4, a wire outlet hole 5, a vacuum connection mechanism 9, and a buckle mechanism 6. The vacuum connection mechanism 9 is connected to the wire inlet hole 4 and the wire outlet hole. 5 in the middle; the vacuum connecting mechanism 9 is used to disconnect and connect to prevent fire caused by the electric spark generated at the moment of connection;
[0030] The vacuum connection mechanism 9 includes an arc extinguishing chamber 902, a connection column 903, a static contact 904, a sliding rod 905, a spring 906, a movable contact block 907, a connection groove 908, a groove 909, and an armature 608; The connecting column 90...
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A vacuum circuit breaker comprises an electric wire access hole, an electric wire outlet hole, a vacuum connection mechanism and a buckling mechanism, and the vacuum connection mechanism is connectedbetween the electric wire access hole and the electric wire outlet hole; a sliding rod is arranged in the arc extinguishing chamber, a movable contact block is installed on the sliding rod in a sliding mode, and the movable contact block is installed between the two static contacts. A connecting groove is formed in the side surface, in contact with the static contact, of the movable contact block,and an armature is arranged below the movable contact block; the spring is arranged on the movable contact block, and the spring generates a pulling force to connect the connection groove with the static contact; in order to solve the above problem, the invention provides the vacuum circuit breaker, the armature in the arc extinguishing chamber is attracted by the external magnet to complete external driving power failure, the arc extinguishing chamber is a closed pipe, the connection column is in sealed connection with the arc extinguishing chamber to reduce the opening of the arc extinguishing chamber, and thus the sealing performance of the arc extinguishing chamber is ensured.
Description
technical field [0001] The invention relates to the technical field of industrial electrical appliances and circuit breakers, in particular to a vacuum circuit breaker. Background technique [0002] Vacuum circuit breaker means that the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum; the existing circuit breaker is for example: the Chinese invention patent with the patent number 2016102325011 discloses a vacuum circuit breaker, including the moving end conductive A rod and a conductive support cylinder, the conductive support cylinder is provided with a spring assembly for driving the conductive rod at the moving end. In the support cylinder, because the vacuum circuit breaker drives the contacts by pushing the insulating pull rod, and then drives the movable end conductive rod through the spring to drive the contact between the movable and static heads to complete the energization; because the movable end c...
Claims
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IPC IPC(8): H01H71/10H01H71/58H01H73/18
CPCH01H71/1072H01H71/10H01H71/58H01H73/18
Inventor 李凤玲
Owner 上海振能信息科技有限公司