CN2924748Y - Explosion-proof capacitor - Google Patents
Explosion-proof capacitor Download PDFInfo
- Publication number
- CN2924748Y CN2924748Y CN 200620159780 CN200620159780U CN2924748Y CN 2924748 Y CN2924748 Y CN 2924748Y CN 200620159780 CN200620159780 CN 200620159780 CN 200620159780 U CN200620159780 U CN 200620159780U CN 2924748 Y CN2924748 Y CN 2924748Y
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- CN
- China
- Prior art keywords
- capacitor according
- noinductive capacitor
- shell
- capacitor
- loam cake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an explosion-proof capacitor, which includes an outer shell, an upper cover, a leading-out end, a connected pole and a capacitor core. An explosion-proof plate is arranged in the outer shell; the explosion-proof plate is provided with a connection hole; a lead wire of the connection hole drills through the connection hole and connects with a metal wire or a metal sheet of the capacitor core; the opening of the outer shell is formed with an outer edge-lift, and the opening of the upper cover is formed with a relative inner edge-lift, and the two edge-lifts are at a certain distance as the longitudinal distance separation and are provided with sealing pieces. The upper cover of the utility model has larger movement space after the expansion of the capacitor, therefore, the utility model can disconnect the metal wire or metal sheet in time, thus to make the capacitor in an open circuit state and discharge the pressure in the capacitor, furthermore, the utility model can not cause the explosions, while the utility model also has the advantages of simple structure, good sealing performance, high safety and so on.
Description
Technical field
The utility model relates to a kind of capacitor, a kind of more precisely capacitor with explosion-proof performance.
Background technology
Present noinductive capacitor mostly is provided with the physics blast resistance construction, when two electrodes of capacity cell during by permanent puncture, container or housing just can be because of air pressure inside rising dilatancies, break until metal wire or the sheet metal installed in the enclosure, thereby reach open-circuit condition, in order to avoid capacitor pops because of overload.As Chinese patent CN01217268.5 disclosed a kind of " anti-riot electric capacity ", the electrical connector of this capacitor is made of zinc-plated soft copper sheet, the fairlead that terminal pins is passed loam cake process burst disk is connected with an end dc spot welding of zinc-plated soft copper sheet, the other end is fixedlyed connected with the electrode tip of capacity cell, terminal pins is fixedlyed connected with loam cake through insulator, and the width of zinc-plated soft copper sheet is greater than the aperture of fairlead; When capacity cell is breakdown, the metalized film generating gasification, capacitor is inner to expand, force loam cake outwards to heave distortion, because the distortion of loam cake central authorities is greater than the distortion at edge, loam cake drives terminal pins and moves up and be subjected to stopping of fairlead simultaneously, thereby pulling force is applied on the direct current pad, finally pulls pad and makes between the terminal of capacitor and be in open-circuit condition.Though this capacitor has the overload explosion prevention function, loam cake distortion amount of movement is little, can not in time solder joint be pulled, and machining accuracy is had higher requirement.
The utility model content
At the deficiency that prior art exists, the purpose of this utility model is to provide a kind of good airproof performance, safe noinductive capacitor.The loam cake of this capacitor has bigger deflection with respect to shell, thereby can as soon as possible metal wire or sheet metal be broken when overload, makes it be in safe open-circuit condition.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of noinductive capacitor, comprise shell, loam cake, exit, joint pin and capacitance core, be provided with bursting diaphragm in the shell, offer connecting hole on the bursting diaphragm, the lead of joint pin passes connecting hole and docks with the metal wire or the sheet metal of capacitance core, described shell aperture is formed with outer flanging, and last cover gab is formed with relative interior flanging, and two flanging longitudinal separation certain distances and pad are provided with seal.
Described seal is near the outer flanging of housing.
Offer steam vent on the side of described loam cake.
Described loam cake inside is provided with one or more guide pillars longitudinally, offers on the bursting diaphragm and the corresponding jack of this guide pillar.
Be filled with anti-oxidant gas in the sealed cavity between described capacitance core and the shell.
Be provided with seal between described lead line and the connecting hole.
Between described capacitance core and the shell by on mould cover and mould down cover and insulate.
Described outer casing bottom is provided with support or the screw rod of being convenient to install.
Described exit is metal dististyle, lead-in wire, contact pin, socket, screw rod or nut structure.
Described shell is metal-back or plastic housing, and loam cake is metallic article or plastic products.
The utility model leaves sufficient space between the shell of capacitor and loam cake, and carry out encapsulation process with seal, when enclosure interior expands, loam cake just can move upward with respect to shell under the effect of internal pressure, thereby in time metal wire or sheet metal are broken, make electric capacity be in open-circuit condition, if enclosure interior continues to expand, then the loam cake steam vent that can always move to the side is crossed till the seal, compares with traditional noinductive capacitor to have advantages such as simple in structure, good airproof performance and fail safe height.
Description of drawings
Structural representation when Fig. 1 is in normal condition for the utility model;
Structural representation when Fig. 2 is in open-circuit condition for the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Description of reference numerals is as follows:
1---shell 2---loam cake
3---exit 4---joint pin
5---capacitance core 6---bursting diaphragm
The outer flanging of 7---leads 8---
9---interior flanging 10---steam vent
11---O-ring seal 12---guide pillar
13---jack
As shown in Figure 1, this noinductive capacitor is mainly by shell 1, loam cake 2, exit 3, parts such as joint pin 4 and capacitance core 5 are formed, wherein shell 1 is a metal-back, loam cake 2 is plastic products, be provided with bursting diaphragm 6 in the shell 1, between capacitance core 5 and the shell 1 by on mould cover and mould down cover and insulate, its sealed cavity vacuumizes or fills anti-oxidant gas, joint pin 4 is connected with capacitance core 5 by lead 7, offer connecting hole on the bursting diaphragm 6, lead 7 passes connecting hole and docks with the metal wire or the sheet metal of capacitance core, be provided with seal between lead and the connecting hole, shell aperture is formed with outer flanging 8, and last cover gab is formed with relative interior flanging 9, and on the side, offer steam vent 10, two flanging longitudinal separation certain distances and pad are provided with O-ring seal 11, and the sealing cushion rubber is close to the outer flanging 8 of housing, and steam vent 10 is positioned at the lower position of O-ring seal 11, loam cake inside is provided with a guide pillar 12 longitudinally, offers on the bursting diaphragm and the corresponding jack 13 of this guide pillar.
As shown in Figure 2, when enclosure interior expands, loam cake 2 just can move upward with respect to shell 1 under the effect of internal pressure, thereby in time metal wire or sheet metal are broken, make electric capacity be in open-circuit condition, if enclosure interior continue to expand, then loam cake 2 steam vent 10 that can always move to the side is crossed till the O-ring seal 11.
The utility model is not limited to above-mentioned preferred forms, and anyone can draw other various forms of products under enlightenment of the present invention.For example support or the screw rod of being convenient to install in the outer casing bottom setting, or exit adopts metal dististyle, lead-in wire, contact pin, socket, screw rod or nut structure or the like.Though but on its shape or structure, do any variation, every have identical with a utility model or akin technical scheme, all within its protection range.
Claims (10)
1, a kind of noinductive capacitor, comprise shell, loam cake, exit, joint pin and capacitance core, be provided with bursting diaphragm in the shell, offer connecting hole on the bursting diaphragm, the lead of joint pin passes connecting hole and docks with the metal wire or the sheet metal of capacitance core, it is characterized in that described shell aperture is formed with outer flanging, last cover gab is formed with relative interior flanging, and two flanging longitudinal separation certain distances and pad are provided with seal.
2, noinductive capacitor according to claim 1 is characterized in that, described seal is near the outer flanging of housing.
3, noinductive capacitor according to claim 1 is characterized in that, offers steam vent on the side of described loam cake.
4, noinductive capacitor according to claim 1 is characterized in that, described loam cake inside is provided with one or more guide pillars longitudinally, offers on the bursting diaphragm and the corresponding jack of this guide pillar.
5, noinductive capacitor according to claim 1 is characterized in that, is filled with anti-oxidant gas in the sealed cavity between described capacitance core and the shell.
6, noinductive capacitor according to claim 1 is characterized in that, is provided with seal between described lead line and the connecting hole.
7, noinductive capacitor according to claim 1 is characterized in that, between described capacitance core and the shell by on mould cover and mould down cover and insulate.
8, noinductive capacitor according to claim 1 is characterized in that, described outer casing bottom is provided with support or the screw rod of being convenient to install.
9, noinductive capacitor according to claim 1 is characterized in that, described exit is metal dististyle, lead-in wire, contact pin, socket, screw rod or nut structure.
10, noinductive capacitor according to claim 1 is characterized in that, described shell is metal-back or plastic housing, and loam cake is metallic article or plastic products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620159780 CN2924748Y (en) | 2006-11-29 | 2006-11-29 | Explosion-proof capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620159780 CN2924748Y (en) | 2006-11-29 | 2006-11-29 | Explosion-proof capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2924748Y true CN2924748Y (en) | 2007-07-18 |
Family
ID=38261176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620159780 Expired - Fee Related CN2924748Y (en) | 2006-11-29 | 2006-11-29 | Explosion-proof capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2924748Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820131A (en) * | 2012-08-31 | 2012-12-12 | 浙江威德康电气有限公司 | Power capacitor |
| CN103560005A (en) * | 2013-10-10 | 2014-02-05 | 国家电网公司 | Closed type depressurization capacitor |
| CN104576047A (en) * | 2013-10-21 | 2015-04-29 | 丹阳市米可汽车零部件厂 | Capacitor provided with external pressure regulation bag |
| CN105845437A (en) * | 2016-05-19 | 2016-08-10 | 郑州航空工业管理学院 | Metallized film capacitor for track circuit |
| CN108768893A (en) * | 2018-04-24 | 2018-11-06 | 浙江麦知网络科技有限公司 | A kind of explosion-proof network switch |
| CN109273265A (en) * | 2018-10-22 | 2019-01-25 | 铜陵源丰电子有限责任公司 | A kind of reversible noinductive capacitor |
-
2006
- 2006-11-29 CN CN 200620159780 patent/CN2924748Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820131A (en) * | 2012-08-31 | 2012-12-12 | 浙江威德康电气有限公司 | Power capacitor |
| CN103560005A (en) * | 2013-10-10 | 2014-02-05 | 国家电网公司 | Closed type depressurization capacitor |
| CN103560005B (en) * | 2013-10-10 | 2015-06-10 | 国家电网公司 | Closed type depressurization capacitor |
| CN104576047A (en) * | 2013-10-21 | 2015-04-29 | 丹阳市米可汽车零部件厂 | Capacitor provided with external pressure regulation bag |
| CN105845437A (en) * | 2016-05-19 | 2016-08-10 | 郑州航空工业管理学院 | Metallized film capacitor for track circuit |
| CN105845437B (en) * | 2016-05-19 | 2017-11-03 | 郑州航空工业管理学院 | A kind of metallic film capacitor suitable for track circuit |
| CN108768893A (en) * | 2018-04-24 | 2018-11-06 | 浙江麦知网络科技有限公司 | A kind of explosion-proof network switch |
| CN109273265A (en) * | 2018-10-22 | 2019-01-25 | 铜陵源丰电子有限责任公司 | A kind of reversible noinductive capacitor |
| CN109273265B (en) * | 2018-10-22 | 2023-11-10 | 安徽西帝电子股份有限公司 | Reversible explosion-proof capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070718 Termination date: 20111129 |