CN203521160U - Humid tropics dry-type DC filtering capacitor - Google Patents
Humid tropics dry-type DC filtering capacitor Download PDFInfo
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- CN203521160U CN203521160U CN201320551010.5U CN201320551010U CN203521160U CN 203521160 U CN203521160 U CN 203521160U CN 201320551010 U CN201320551010 U CN 201320551010U CN 203521160 U CN203521160 U CN 203521160U
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- perfusion
- humid tropics
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Abstract
The utility model discloses a humid tropics dry-type DC filtering capacitor comprising a capacitor core set, an insulation layer, perfusion materials, 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 perfusion materials, the metal housing is buckled with the housing cover, the leading-out terminals are fixedly arranged on the housing cover and are electrically connected with the capacitor core set, perfusion material ports tightly matched with the leading-out terminals are arranged on the housing cover, and the leading-out terminals cross through the perfusion material ports, then the perfusion materials are sealed. By employing the humid tropics dry-type DC filtering capacitor, under humid tropics environment with high humidity and high temperature, phenomena that the perfusion materials are separated from the housing, the surface of the exposed epoxy resin cracks, the performance of the capacitor is reduced are prevented, so that the reliability and stability of the capacitor are ensured.
Description
Technical field
The utility model relates to a kind of humid tropics dry type DC filtering capacitor, belongs to technical field of electric connectors.
Background technology
DC filter capacitors is widely used in high voltage direct current transmission (HVDC), the inverter of static var compensation (SVC), wind power generation, electric locomotive traction, AC and DC power transmission, excitation, high pressure soft starting, high-pressure frequency-conversion, rectifier, various power jacking equipment.The effective additional ripple cost of filtering voltage, smooth waveform.Dry type DC filtering capacitor generally uses epoxy resin as perfusion material, because not producing leak of liquid, easy for installation, has obtained application more widely.
But dry type DC filtering capacitor is at high humidity, under the high humid tropics environment of temperature after the several years is used, partition capacitance device there will be epoxy resin perfusion material separated with shell, the epoxy resin surface cracking exposing, the deteriorated phenomenon that can not continue use of capacitor performance.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of humid tropics dry type DC filtering capacitor, this capacitor is under the high humid tropics environment of high humidity, temperature, there will not be perfusion material separated with shell, the epoxy resin surface cracking exposing, the phenomenon that capacitor performance is deteriorated, guarantees capacitor reliability of operation and stability.
For addressing the above problem, technical solution adopted in the utility model is as follows:
A kind of humid tropics dry type DC filtering capacitor, comprise: capacitor core group, insulating barrier, perfusion material, 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 perfusion material 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 cap is provided with and the close-fitting material filling mouth of described leading-out terminal, thereby described leading-out terminal seals described perfusion material through described material filling mouth.
As the improvement of technique scheme, described perfusion material is polyurethane.
As the improvement of technique scheme, described cap is fixedly connected with by electric welding with described metal shell.
As the improvement of technique scheme, the material of described cap and described metal shell is cold-rolled steel sheet, magnetism-free stainless steel or aluminium sheet.
Compared with prior art, implementation result of the present utility model is as follows for the utility model:
Humid tropics dry type DC filtering capacitor described in the utility model, on described metal shell, fasten described cap, can described perfusion material is completely airtight, discord external environment directly contacts, thereby prevents that outside moisture is by the impact of said minuscule hole on described capacitor core group in described perfusion material.After urethane cures, be elastomer, hole is less, stable performance, and heat conductivility is better, and capacitor can better move under humid tropics environment.Under the high humid tropics environment of high humidity, temperature, there will not be perfusion material separated with shell, the epoxy resin surface cracking exposing, the phenomenon that capacitor performance is deteriorated, has guaranteed capacitor reliability of operation and stability.
Accompanying drawing explanation
Fig. 1 is humid tropics dry type DC filtering capacitor structural representation 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, be humid tropics dry type DC filtering capacitor structural representation described in the utility model.Humid tropics dry type DC filtering capacitor described in the utility model, comprise: capacitor core group 1, insulating barrier 2, perfusion material 3, metal shell 4, cap 5, leading-out terminal 6, 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 perfusion material 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 6 is fixedly arranged on described lid shell, and described leading-out terminal 6 is electrically connected to described capacitor core group 1, described cap 5 is provided with and the close-fitting material filling mouth of described leading-out terminal 6, thereby described leading-out terminal 6 seals described perfusion material 3 through described material filling mouth.On described metal shell, fasten described cap, can described perfusion material is completely airtight, discord external environment directly contacts, thereby prevents that outside moisture is by the impact of said minuscule hole on described capacitor core group in described perfusion material.Described perfusion material 3 is polyurethane, after urethane cures, is elastomer, and hole is less, stable performance, and heat conductivility is better, and capacitor can better move under humid tropics environment.Described cap 5 is fixedly connected with by electric welding with described metal shell 4.The material of described cap 5 and described metal shell 4 is cold-rolled steel sheet, magnetism-free stainless steel or aluminium sheet.By assembly connecting mode and the material of preferred described humid tropics dry type DC filtering capacitor, further improve seal.
The humid tropics dry type DC filtering capacitor that the present embodiment provides, under the high humid tropics environment of high humidity, temperature, there will not be perfusion material separated with shell, the epoxy resin surface cracking exposing, the phenomenon that capacitor performance is deteriorated, has guaranteed capacitor reliability of operation and stability.
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 (4)
1. a humid tropics dry type DC filtering capacitor, comprise capacitor core group (1), insulating barrier (2), perfusion material (3), metal shell (4), cap (5), leading-out terminal (6), 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 perfusion material (3) is filled in the space in described metal shell (4), described cap is fastened on described metal shell (4), described leading-out terminal (6) is fixedly arranged on described cap, and described leading-out terminal (6) is electrically connected to described capacitor core group (1), it is characterized in that: described cap (5) is provided with and the close-fitting material filling mouth of described leading-out terminal (6), described leading-out terminal (6) thus seal described perfusion material (3) through described material filling mouth.
2. humid tropics dry type DC filtering capacitor as claimed in claim 1, is characterized in that: described perfusion material (3) is polyurethane.
3. humid tropics dry type DC filtering capacitor as claimed in claim 1, is characterized in that: described cap (5) is fixedly connected with by electric welding with described metal shell (4).
4. humid tropics dry type DC filtering capacitor as claimed in claim 1, is characterized in that: the material of described cap (5) and described metal shell (4) is cold-rolled steel sheet, magnetism-free stainless steel or aluminium sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320551010.5U CN203521160U (en) | 2013-09-06 | 2013-09-06 | Humid tropics dry-type DC filtering capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320551010.5U CN203521160U (en) | 2013-09-06 | 2013-09-06 | Humid tropics dry-type DC filtering capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203521160U true CN203521160U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320551010.5U Expired - Fee Related CN203521160U (en) | 2013-09-06 | 2013-09-06 | Humid tropics dry-type DC filtering capacitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203521160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489636A (en) * | 2013-09-06 | 2014-01-01 | 安徽赛福电子有限公司 | Dry-type direct-current filter capacitor suitable for being used in wet tropical zone |
-
2013
- 2013-09-06 CN CN201320551010.5U patent/CN203521160U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103489636A (en) * | 2013-09-06 | 2014-01-01 | 安徽赛福电子有限公司 | Dry-type direct-current filter capacitor suitable for being used in wet tropical zone |
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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: 20140402 Termination date: 20140906 |
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| EXPY | Termination of patent right or utility model |