CN201576566U - Core structure of power capacitor - Google Patents
Core structure of power capacitor Download PDFInfo
- Publication number
- CN201576566U CN201576566U CN2009202455453U CN200920245545U CN201576566U CN 201576566 U CN201576566 U CN 201576566U CN 2009202455453 U CN2009202455453 U CN 2009202455453U CN 200920245545 U CN200920245545 U CN 200920245545U CN 201576566 U CN201576566 U CN 201576566U
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- CN
- China
- Prior art keywords
- capacitor
- power capacitor
- insulating lining
- grading resistor
- core structure
- 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 - Lifetime
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Abstract
The utility model discloses a core structure of a power capacitor, which relates to a power capacitor. The core structure of the power capacitor comprises capacitor components, a capacitor serial component formed by overlaying a plurality of capacitor components from top to bottom, and an equalizing resistance which is connected with the capacitor serial component in parallel. The core structure of the power capacitor is characterized in that: the lead wire side of the capacitor serial component is a plane on which an insulation lining plate is overlaid; the outer surface of the insulation lining plate is provided with a groove for containing the equalizing resistance and a lead wire hole for wire connecting of the equalizing resistance.
Description
Technical field
The utility model relates to power capacitor, particularly a kind of power capacitor core structures.
Background technology
Along with the development of high voltage dc transmission technology, power capacitor is used for high voltage direct current filtering in a large number, but is used for the power capacitor of high voltage direct current filtering, and its operation characteristic requires inside to have grading resistor.At present, in the manufacturing of power capacitor, after grading resistor is connected in series, adopt multilayer insulation cardboard parcel to insulate, many when grading resistor, this structure causes the shape difference of core structures big because the tightness of parcel has determined its shared size, and there is the difficult problem of vanning in the case shell fixed size of power capacitor.
Summary of the invention
The purpose of this utility model is to provide a kind of power capacitor core structures, can solve the difficult problem of core structures vanning that power capacitor causes because of the band grading resistor.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
A kind of power capacitor core structures, comprise: capacitor element, the capacitances in series assembly that is stacked up and down and forms by a plurality of capacitor elements, and the grading resistor in parallel with the capacitances in series assembly, it is characterized in that, the lead-in wire side of described capacitances in series assembly is the plane, and closed assembly has an insulating lining on this plane, and the outer surface of insulating lining offers the groove of ccontaining grading resistor and is used for the fairlead of grading resistor line.
Further improvement of the utility model is that closed assembly has an insulation backplate on the outer surface of described insulating lining.
In the power capacitor core structures of the present utility model, the lead-in wire side of its capacitances in series assembly is the plane, and closed assembly has an insulating lining on this plane, and the outer surface of insulating lining offers the groove of ccontaining grading resistor and is used for the fairlead of grading resistor line.The grading resistor rule, neat of arranging on insulating lining, therefore, the fixed in shape of core structures, unanimity are convenient to install.In addition, closed assembly has an insulation backplate on the outer surface of insulating lining, and the installation of more favourable core structures and case shell guarantees the electrical safety between grading resistor and case shell simultaneously.
Description of drawings
Fig. 1 is the structural representation of insulating lining;
Fig. 2 is the splicing schematic diagram of two insulating linings;
Fig. 3 looks schematic diagram for the master of core structures;
Wherein: 1 is insulating lining; 2 is groove; 3 is fairlead; 4 is grading resistor; 5 is solder joint; 6 are the insulation backplate.
Embodiment
With reference to Fig. 1, choose 2mm thickness insulating board as insulating lining 1, on insulating lining 1, add section chief * wide and be the groove 2 of 10mm * 55mm, and the processing internal diameter is the fairlead 3 of φ 4mm.
With reference to Fig. 2, two insulating linings 1 are stitched together, grading resistor 4 are placed on respectively in the groove 2 of insulating lining 1, the two ends outlet passes from the fairlead 3 on groove 2 both sides respectively, two grading resistors, the 4 series connection welding of level correspondence, solder joint 5 is as far as possible little; Certainly a big insulating lining of also available twice area replaces above-mentioned two insulating linings.
With reference to Fig. 3, a plurality of capacitor elements are stacked up and down and form the capacitances in series assembly, a plurality of condenser capacitance series component are stacked up and down and constitute the main body of core structures, the lead-in wire side of capacitances in series assembly is the plane, insulating lining 1 is close to this plane, corresponding capacitances in series assembly welds grading resistor 2 respectively, ties up after insulating lining 1 outer surface is provided with insulation backplate 6.
Claims (2)
1. power capacitor core structures, comprise: capacitor element, the capacitances in series assembly that is stacked up and down and forms by a plurality of capacitor elements, and the grading resistor in parallel with the capacitances in series assembly, it is characterized in that, the lead-in wire side of described capacitances in series assembly is the plane, and closed assembly has an insulating lining on this plane, and the outer surface of insulating lining offers the groove of ccontaining grading resistor and is used for the fairlead of grading resistor line.
2. a kind of power capacitor core structures according to claim 1 is characterized in that, closed assembly has an insulation backplate on the outer surface of described insulating lining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202455453U CN201576566U (en) | 2009-12-01 | 2009-12-01 | Core structure of power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202455453U CN201576566U (en) | 2009-12-01 | 2009-12-01 | Core structure of power capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201576566U true CN201576566U (en) | 2010-09-08 |
Family
ID=42696441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202455453U Expired - Lifetime CN201576566U (en) | 2009-12-01 | 2009-12-01 | Core structure of power capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201576566U (en) |
-
2009
- 2009-12-01 CN CN2009202455453U patent/CN201576566U/en not_active Expired - Lifetime
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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: Xi'an Xidian power capacitor Co., Ltd. Assignor: China XD Electronic Corporation Contract record no.: 2012610000080 Denomination of utility model: Core structure of power capacitor Granted publication date: 20100908 License type: Exclusive License Record date: 20120530 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100908 |
|
| CX01 | Expiry of patent term |