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Capacitor and explosion-proof structure thereof

An explosion-proof structure, capacitor technology, applied in the direction of capacitors, electrical components, etc., can solve the problems of small flow area, shortened product life, weak flow capacity, etc.

Pending Publication Date: 2019-02-01
DELIXI ELECTRIC
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0003] However, all of the above are mechanical explosion-proof structures. By setting weak points of tension in the circuit, that is, using a notch on the safety plate, when the shell is deformed, the weak points are disconnected. The disadvantages are: the flow area at the weak points Small, weak flow capacity, high heat generation, resulting in shortened product life

Method used

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  • Capacitor and explosion-proof structure thereof
  • Capacitor and explosion-proof structure thereof
  • Capacitor and explosion-proof structure thereof

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Embodiment

[0023] A capacitor explosion-proof structure, refer to Figure 1-3 , including a first connecting plate 1 and a second connecting plate 2, the first connecting plate 1 and the second connecting plate 2 are arranged at intervals, and the first connecting plate 1 and the second connecting plate 2 are spot-welded together by an insurance sheet assembly 3 connection, the insurance sheet assembly 3 maintains the spot welding pull-off force, and when the capacitor fails, the insurance sheet assembly 3 deforms with the pressure formed in the housing, and pulls away at the spot welding. The safety sheet assembly 3 includes two identical L-shaped copper sheets, the L-shaped metal sheets are welded together back to back, and there are two groups, which are riveted on the first connecting plate 1 and the second connecting plate 2 through rivets 5 . The first connecting plate 1 and the second connecting plate 2 are plates of insulating material, and the edge of the first connecting plate ...

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Abstract

The invention relates to an explosion-proof structure of a capacitor. The structure comprises first and second connection boards arranged separately, and the first and second connection boards are connected via a fuse assembly formed by spot welding. The mechanical stretching type explosion-proof structure is used, two poles are led out via a group of spot-welding fuses, the stroke equals a deformation displacement of a body casing, when deformation of the casing reaches the predetermined amount, a copper sheet formed by spot welding is broken and form a normally open state, the capacitor is cut from the power grid, the explosion-proof purpose is achieved, and the problem that the service life of a product is short due to small current passing area in weak points, weak current passing capability and large heating amount is solved.

Description

technical field [0001] The invention relates to the technical field of capacitor structure design, in particular to an explosion-proof structure of a capacitor and a capacitor. Background technique [0002] Chinese patent CN204633342U discloses a smart capacitor and its explosion-proof mechanism. The smart capacitor includes a housing and an explosion-proof mechanism arranged in the housing. The explosion-proof mechanism has a weak point. The control circuit of the smart capacitor is provided with In the explosion-proof signal collection loop, the weak point is set in the explosion-proof signal collection loop. Chinese patent CN 204884880 U discloses an explosion-proof device in a capacitor. One or two bosses on the first substrate are provided with a waist-shaped hole in the first substrate, and one end of the safety plate at the waist-shaped hole in the first substrate passes through The rivet set in the waist-shaped hole of the first base plate is connected with the boss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G2/18
CPCH01G2/18
Inventor 金鑫陶显升梅耿耿付伟强
Owner DELIXI ELECTRIC
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