Explosion-proof capacitor

A technology of capacitors and explosion-proof plates, applied in capacitors, electrical components, etc., can solve problems such as high temperature and high pressure, and potential safety hazards, and achieve the effect of avoiding overheating of the center

Inactive Publication Date: 2017-06-30
CHIZHOU RONGDA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Power capacitors are widely used in various situations such as factory power distribution systems, residential area power distribution systems, municipal commercial buildings, traffic tunnel power distribution systems, box transformers, complete cabinets, and outdoor distribution boxes; but power capacitors are in the face of current During the disturbance process, high temperature and high pressure will be generated, posing safety hazards, so the explosion-proof function of the capacitor is an indispensable function
In the existing capacitors, some capacitors are filled with heat-conducting medium to facilitate the conduction of heat to the shell. However, the temperature in the central area of ​​the capacitor is still higher than that of the surrounding area, which poses a safety hazard.

Method used

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Embodiment Construction

[0015] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0016] Such as figure 1 and figure 2 The shown explosion-proof capacitor includes a casing 1, an aluminum cover 11, a terminal post 14, an insulating sleeve 13, a silicone ring 15, a nut 16, an explosion-proof plate 12, a copper foil sheet 17 and an internal capacitor core, an aluminum cover 11 and The explosion-proof plate 12 is arranged on the upper opening of the shell 1 one by one, and the terminal post 14 penetrates the aluminum cover 11 and the explosion-proof plate 12 into the inner space of the shell (1), and is insulated from the aluminum cover 11 by the insulating sleeve 13, the silicone ring 15, and the nut 16 to fix the terminal 14, and the copper foil 17 is connected to the end of the terminal 14; the capacitor core is connected to the copper foil through wiring.

[0017] The shell 1 is cylindrical, and the middle part of the s...

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Abstract

An explosion-proof capacitor, belonging to the technical field of power capacitors, aimed at existing power capacitors, including power capacitors with good internal heat conduction, the heat at the center of the capacitor is not easy to dissipate and cause local temperature to be too high; the invention provides an explosion-proof capacitor, It includes a shell, an aluminum cover, a terminal, an insulating sleeve, a silicone ring, a nut, an explosion-proof plate, a copper foil, and an internal capacitor core. The shell is cylindrical, and a cylindrical cavity is arranged in the middle of the shell. Cooling cavity, the upper part of the cooling cavity is provided with an inlet pipe, the lower part of the cooling cavity is provided with a discharge pipe, and the inside of the cooling cavity is provided with a spoiler; the invention takes away heat through the flow of the cooling medium in the cooling cavity, thereby preventing the middle part of the capacitor from Potential safety hazards caused by excessive temperature.

Description

technical field [0001] The invention relates to the field of power capacitors, in particular to an explosion-proof capacitor. Background technique [0002] A capacitor is a device that stores charges. A layer of insulating dielectric is sandwiched between two metal electrodes. When a voltage is applied between the two metal electrodes, charges will be stored on the electrodes, so capacitors are energy storage components. Capacitors have a wide range of functions in circuits, including coupling, filtering, resonance, integration, differentiation, and so on. [0003] Power capacitors are widely used in various situations such as factory power distribution systems, residential area power distribution systems, municipal commercial buildings, traffic tunnel power distribution systems, box transformers, complete cabinets, and outdoor distribution boxes; but power capacitors are in the face of current During the disturbance process, high temperature and high pressure will be gener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G2/08H01G2/10
CPCH01G2/08H01G2/10
Inventor 郑国祥
Owner CHIZHOU RONGDA ELECTRIC CO LTD
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