CN201348939Y - Explosion-proof structure of power capacitor - Google Patents
Explosion-proof structure of power capacitor Download PDFInfo
- Publication number
- CN201348939Y CN201348939Y CNU2009201429555U CN200920142955U CN201348939Y CN 201348939 Y CN201348939 Y CN 201348939Y CN U2009201429555 U CNU2009201429555 U CN U2009201429555U CN 200920142955 U CN200920142955 U CN 200920142955U CN 201348939 Y CN201348939 Y CN 201348939Y
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- Prior art keywords
- explosion
- proof
- power capacitor
- gas
- product
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- 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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- 239000003990 capacitor Substances 0.000 title claims abstract description 40
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000004880 explosion Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 34
- 238000010276 construction Methods 0.000 description 12
- 230000015556 catabolic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/13—Energy storage using capacitors
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- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
本实用新型公开了一种电力电容器的防爆结构，所述的电力电容器(1)包括芯子(2)、防爆片(4)和外壳(5)，所述的外壳(5)上设有用于排放高压气体的防爆柱(8)。采用上述技术方案，在使用的过程中，由于电网电压的波动、谐波、使用环境等因数造成电容器损坏，使其内部产生大量气体能够得到及时的释放而避免爆炸。用防爆片使电路断开、用防爆柱排出高压气体，两种防爆机构同时应用在一个产品上，解决了由单一的防爆结构不能彻底解决防爆性能的问题，保证产品使用的安全性和可靠性。
The utility model discloses an explosion-proof structure of a power capacitor. The power capacitor (1) comprises a core (2), an explosion-proof sheet (4) and a casing (5), and the casing (5) is provided with a Explosion-proof columns (8) for discharging high-pressure gas. By adopting the above-mentioned technical solution, during the use process, the capacitor is damaged due to factors such as grid voltage fluctuations, harmonics, and the use environment, so that a large amount of gas generated inside can be released in time to avoid explosion. The circuit is disconnected by the explosion-proof plate, and the high-pressure gas is discharged by the explosion-proof column. The two explosion-proof mechanisms are applied to one product at the same time, which solves the problem that the single explosion-proof structure cannot completely solve the problem of explosion-proof performance, and ensures the safety and reliability of the product. .
Description
Technical field
The utility model belongs to the technical field of power switch cabinet, relates to the low-voltage compensation capacitor that AC system is used, and more particularly, the utility model relates to a kind of blast resistance construction of power capacitor.
Background technology
Power capacitor is to be electrical switchgear producer auxiliary products, is in order to improve power factor, the low-voltage compensation capacitor of using as AC system.For power capacitor, the explosion-proof performance of product is most important, because it uses in the alternating electromotive force network system, if there is not good explosion-proof performance, when capacitor goes wrong, will have influence on the operation of whole electrical network.
What the blast resistance construction of traditional power capacitor adopted is single explosion-proof mechanism, is to carry out explosion-proof in the inner burst disk of installing of product.The shortcoming of this structure is: during, product inner generation a large amount of gas breakdown when the fuse of product, cause product inside that very big pressure is arranged, two of product casing faces will be pushed up (generally being referred to as " bulge " phenomenon) laterally like this, thereby break burst disk, capacitor is left from circuit interruption.So just avoid fuse by continuous puncture, caused the product internal pressure constantly to increase.Though burst disk is broken, product is opened from circuit interruption, and product is not opened and obtained discharging from circuit interruption but the product gas inside has, and product inside still exists a large amount of gas, the inner very big pressure in addition of product, this pressure all might cause the product blast at any time.
The utility model content
Problem to be solved in the utility model provides a kind of blast resistance construction of power capacitor, its objective is can access at the inner a large amount of gases that produce of power capacitor to discharge timely and avoid blast.
To achieve these goals, the technical scheme taked of the utility model is:
The blast resistance construction of this power capacitor provided by the utility model, described power capacitor comprises fuse, burst disk and shell, described shell is provided with the anti-explosion post that is used to discharge gases at high pressure.
For making the utility model more perfect, more detailed and concrete technical scheme below also further having proposed, to obtain best practical function, realize goal of the invention better, and improve novelty of the present utility model and creativeness:
Described anti-explosion post is the gas unidirectional valve arrangement, and the conducting direction of its gas is outside from the inner chamber of described power capacitor.
On the gas conducting direction of described gas unidirectional valve arrangement, be provided with the elastic construction of the starting pressure that increases the gas conducting, described starting pressure is 0.1MPa.
The utility model adopts technique scheme, in the process of using, because factors such as the fluctuation of line voltage, harmonic wave, environment for use cause capacitor to damage, makes it innerly produce a large amount of gases and can access and discharge timely and avoid blast.Make circuit disconnect, discharge gases at high pressure with anti-explosion post with burst disk, two kinds of explosion-proof mechanisms are applied on the product simultaneously, have solved the problem that can not thoroughly be solved explosion-proof performance by single blast resistance construction, guarantee fail safe and reliability that product uses.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are made brief description:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the anti-explosion post in the utility model.
Be labeled as among the figure:
1, power capacitor, 2, fuse, 3, fixing feet, 4, burst disk, 5, shell, 6, binding post, 7, discharge resistance, 8, anti-explosion post.
Embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and operation principle, the manufacturing process of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present utility model, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
The of the present utility model structure expressed as Fig. 1, Fig. 2 is a kind of blast resistance construction of power capacitor, and described power capacitor 1 comprises fuse 2, burst disk 4 and shell 5.
Also be provided with binding post 6 in the power capacitor 1, be used to install the conducting wire;
Be provided with discharge resistance 7, make in its circuit and the voltage in the electric capacity can be reduced in official hour after the disengaging, play the effect of safeguard protection;
Power capacitor 1 is installed in power switch cashier's office in a shop by fixing feet 3.
In order to solve the problem that exists at the described present known technology of this specification background technology part and to overcome its defective, be implemented in the inner a large amount of gases that produce of power capacitor and can access the goal of the invention that discharges timely and avoid exploding, the technical scheme that the utility model is taked is:
As depicted in figs. 1 and 2, the blast resistance construction of this power capacitor provided by the utility model, described shell 5 is provided with the anti-explosion post 8 that is used to discharge gases at high pressure.
Adopt above-mentioned dual blast resistance construction, not only burst disk 4 is installed, and anti-explosion post 8 also is installed on product casing carries out explosion-proofly, solved power capacitor 1 when damaging, the problem that its gas inside can not get discharging timely in product inside.Therefore, in the process of use,, make it innerly produce a large amount of gases and can access and discharge timely and avoid blast because factors such as the fluctuation of line voltage, harmonic wave, environment for use cause capacitor to damage.
Its operation principle is: when power capacitor 1 is breakdown, inner meeting produces a large amount of gases, when the pressure of internal gas generation reaches the certain pressure value, two largest face of shell are outwards pushed up by air pressure, make the explosion-proof mechanism action of burst disk, thereby the formation open-circuit condition has guaranteed that capacitor leaves from circuit interruption.Because the time compole of capacitor breakdown is short, the time that produces gas is also very short, will produce very big pressure in product inside in a flash because of the breakdown a large amount of gases that produce, at this moment the anti-explosion post 8 that is installed on the shell 5 also begins to have moved, sealed anti-explosion post 8 is outwards pushed up by the gas of internal high pressure, when power capacitor 1 gas inside pressure 〉=0.1MP, the anti-explosion post of installing on the shell 58 begins action, a large amount of gases of discharging capacitor inside have guaranteed that product can not discharged the explosion phenomenon that causes timely because of a large amount of gases that inside produces.Two kinds of explosion-proof mechanisms are applied on the product simultaneously, have solved the problem that can not thoroughly be solved explosion-proof performance by single blast resistance construction, guarantee fail safe and reliability that product uses.
Be the concrete exemplifying embodiment that originally provides below, for those skilled in the art's reference and selecting for use when implementing the utility model:
Embodiment one:
For anti-explosion post 8 can be worked repeatedly, promptly after exhaust, can reuse, not reinstall, the utility model provides following structure:
Therefore, after exhaust finished, the gas unidirectional valve of anti-explosion post 8 cut out again, recovered normal operating conditions.
Embodiment two:
On the gas conducting direction of gas unidirectional valve arrangement described in the utility model, be provided with the elastic construction of the starting pressure that increases the gas conducting, described starting pressure is 0.1MPa.
The purpose of said structure is to prevent in normal operation, and the situation that the gas unidirectional valve may occur opening automatically produces adverse influence to sealing.Its starting pressure is set at 0.1MPa, meets the force value of general power capacitor when internal gas produces, and is the critical value of safety.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present utility model design and technical scheme carry out; or design of the present utility model and technical scheme are directly applied to other occasion without improving, all within protection range of the present utility model.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201429555U CN201348939Y (en) | 2009-02-05 | 2009-02-05 | Explosion-proof structure of power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201429555U CN201348939Y (en) | 2009-02-05 | 2009-02-05 | Explosion-proof structure of power capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201348939Y true CN201348939Y (en) | 2009-11-18 |
Family
ID=41368407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201429555U Expired - Fee Related CN201348939Y (en) | 2009-02-05 | 2009-02-05 | Explosion-proof structure of power capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201348939Y (en) |
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2009
- 2009-02-05 CN CNU2009201429555U patent/CN201348939Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091118 Termination date: 20150205 |
|
| EXPY | Termination of patent right or utility model |