CN203521168U - Inflatable type metalized film capacitor - Google Patents
Inflatable type metalized film capacitor Download PDFInfo
- Publication number
- CN203521168U CN203521168U CN201320550942.8U CN201320550942U CN203521168U CN 203521168 U CN203521168 U CN 203521168U CN 201320550942 U CN201320550942 U CN 201320550942U CN 203521168 U CN203521168 U CN 203521168U
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- capacitor
- gas
- film capacitor
- metal shell
- filled type
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Abstract
The utility model discloses an inflatable type metalized film capacitor comprising a capacitor core set, an insulation layer, filling gas, a metal housing, a housing cover and leading-out terminals. The capacitor core set is disposed inside the metal housing, the insulation layer is arranged between the capacitor core set and the metal housing, a gap inside the metal housing is filled with the filling gas, the metal housing is buckled with the housing cover, the leading-out terminals are arranged on the housing cover and are electrically connected with the capacitor core set, the filling gas is sulfur hexafluoride, and the internal air pressure of the inflatable type metalized film capacitor is the same with external environment air pressure. The electrical performance of the capacitor can be improved through the filling gas inside the housing, the internal pressure of the capacitor can be controlled at an appropriate value, and the safety and service lifetime of the capacitor are ensured.
Description
Technical field
The utility model relates to a kind of gas-filled type metallization film capacitor, belongs to capacitor technology field.
Background technology
Gas-filled type metallization film capacitor has capacitor internal element and the external world isolates completely, little to environmental impact, is easy to the features such as explosion-proof, fail safe is good.
The gas of filling in gas-filled type metallization film capacitor is generally air or inert gas (as nitrogen).Directly use air cost low, do not need charger, but shortcoming is also clearly, airborne oxygen and moisture can make metalized film oxidation in capacitor element, deteriorated, affect electrical property and the useful life of capacitor.Under the normal condition of inert gas, be the gas of colorless and odorless odorless, chemical property is very stable, is difficult to react with other materials under normal temperature, uses inert gas to replace the residual air in capacitor body, can make capacitor metalized film that oxidative phenomena does not occur, improve capacitor stability; But inert gas does not increase the effect of capacitor electrode performance, simultaneously the interior pressure of gas filled capacitor also needs to control, and the too high meeting of interior pressure causes the explosion-protection equipment of capacitor to move in advance early failure, and interior pressure is too low, can affect the explosion-proof performance of capacitor, bring potential safety hazard.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of gas-filled type metallization film capacitor, its inner gas of filling can improve the electric property of capacitor, make the interior pressure-controlled of capacitor at suitable numerical value simultaneously, take into account fail safe and the life performance of capacitor.
For addressing the above problem, technical solution adopted in the utility model is as follows:
A kind of gas-filled type metallization film capacitor, comprise: capacitor core group, insulating barrier, blanketing gas, metal shell, cap, leading-out terminal, described capacitor core group is arranged in described metal shell, between described capacitor core group and described metal shell, be provided with described insulating barrier, described blanketing gas is filled in the space in described metal shell, described lid shell is fastened on described metal shell, described leading-out terminal is fixedly arranged on described lid shell, and described leading-out terminal is electrically connected to described capacitor core group, described blanketing gas is sulphur hexafluoride, the air pressure inside of described gas-filled type metallization film capacitor is consistent with ambient air pressure.
Sulphur hexafluoride has extremely strong elecrtonegativity, in forceful electric power field energy, adsorbs free electron, thereby has hindered the development of impact ionization process, therefore has good electrical insulation properties; Simultaneously its specific heat capacity at constant pressure is large, and good heat conductivity is taken away after can making the electric energy of electric arc be converted to very soon heat energy, therefore has excellent arc extinction performance.Its electric strength is 2.5 times of nitrogen under same pressure, puncture voltage is 2.5 times of air, arc extinguishing ability is 100 times of air, it is a kind of superhigh pressure dielectric material that is better than sky G&O, use the residual air in sulphur hexafluoride instead of capacitor core group, can improve the electrical property of capacitor.
In order to take into account fail safe and life performance, the interior pressure of gas-filled type metallization film capacitor and outside environment for use air pressure should be consistent.As gas-filled type metallization film capacitor is used within the scope of height above sea level 0 ~ 2000m, interior pressure can remained on to an atmospheric pressure left and right.As gas-filled type metallization film capacitor is used under high height above sea level, should, according to the air pressure of environment for use, synchronously turn down the interior pressure of gas-filled type metallization film capacitor.
As the improvement of technique scheme, described metal shell glueds joint after fastening with described cap, electric welding connection or sleeve pipe soldering are connected.
As the improvement of technique scheme, on described cap, be provided with through hole, described through hole coordinates and seals with lock screw.
Compared with prior art, implementation result of the present utility model is as follows for the utility model:
Gas-filled type metallization film capacitor described in the utility model, its inner gas of filling can improve the electric property of capacitor, makes the interior pressure-controlled of capacitor at suitable numerical value simultaneously, takes into account fail safe and the life performance of capacitor.
Accompanying drawing explanation
Fig. 1 is gas-filled type metallization film capacitor cross-sectional view described in the utility model;
Fig. 2 is gas-filled type metallization film capacitor plan structure schematic diagram described in the utility model.
Embodiment
Content of the present utility model is described below in conjunction with specific embodiments.
As shown in Figure 1-2, be gas-filled type metallization film capacitor structural representation described in the utility model.Gas-filled type metallization film capacitor described in the utility model, comprise: capacitor core group 1, insulating barrier 2, blanketing gas 3, metal shell 4, cap 5, leading-out terminal, described capacitor core group 1 is arranged in described metal shell 4, between described capacitor core group 1 and described metal shell 4, be provided with described insulating barrier 2, described blanketing gas 3 is filled in the space in described metal shell 4, described lid shell is fastened on described metal shell 4, described leading-out terminal is fixedly arranged on described lid shell, and described leading-out terminal is electrically connected to described capacitor core group 1, described blanketing gas 3 is sulphur hexafluoride, the air pressure inside of described gas-filled type metallization film capacitor is consistent with ambient air pressure.Described metal shell 4 glueds joint after fastening with described cap 5, electric welding connection or sleeve pipe soldering are connected.On described cap 5, be provided with through hole 6, described through hole 6 coordinates and seals with lock screw.
Above content is the detailed description of in conjunction with specific embodiments the utility model being done, and can not assert that the concrete enforcement of the utility model only limits to these explanations.For the utility model person of ordinary skill in the field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to the scope of the utility model protection.
Claims (3)
1. a gas-filled type metallization film capacitor, comprise: capacitor core group (1), insulating barrier (2), blanketing gas (3), metal shell (4), cap (5), leading-out terminal, described capacitor core group (1) is arranged in described metal shell (4), between described capacitor core group (1) and described metal shell (4), be provided with described insulating barrier (2), described blanketing gas (3) is filled in the space in described metal shell (4), described cap is fastened on described metal shell (4), described leading-out terminal is fixedly arranged on described cap, and described leading-out terminal is electrically connected to described capacitor core group (1), it is characterized in that: described blanketing gas (3) is sulphur hexafluoride, the air pressure inside of described gas-filled type metallization film capacitor is consistent with ambient air pressure.
2. gas-filled type metallization film capacitor as claimed in claim 1, is characterized in that: described metal shell (4) glueds joint after fastening with described cap (5), electric welding connection or sleeve pipe soldering are connected.
3. gas-filled type metallization film capacitor as claimed in claim 1, is characterized in that: on described cap (5), be provided with through hole (6), described through hole (6) coordinates and seals with lock screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550942.8U CN203521168U (en) | 2013-09-06 | 2013-09-06 | Inflatable type metalized film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550942.8U CN203521168U (en) | 2013-09-06 | 2013-09-06 | Inflatable type metalized film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521168U true CN203521168U (en) | 2014-04-02 |
Family
ID=50380059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320550942.8U Expired - Fee Related CN203521168U (en) | 2013-09-06 | 2013-09-06 | Inflatable type metalized film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203521168U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505258A (en) * | 2014-12-22 | 2015-04-08 | 安徽赛福电子有限公司 | Oil-type direct current filter capacitor |
-
2013
- 2013-09-06 CN CN201320550942.8U patent/CN203521168U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104505258A (en) * | 2014-12-22 | 2015-04-08 | 安徽赛福电子有限公司 | Oil-type direct current filter capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: TONGLING JIALONG FEIDIAN CONTAINER CO., LTD. Assignor: Anhui Safe Electronics Co., Ltd. Contract record no.: 2014340000124 Denomination of utility model: Gas-filled type metallization film capacitor and processing method thereof Granted publication date: 20140402 License type: Exclusive License Record date: 20140613 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20140906 |
|
| EXPY | Termination of patent right or utility model |