CN202839309U - Core structure for DC-bus support capacitor of electric automobile - Google Patents
Core structure for DC-bus support capacitor of electric automobile Download PDFInfo
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- CN202839309U CN202839309U CN 201220403344 CN201220403344U CN202839309U CN 202839309 U CN202839309 U CN 202839309U CN 201220403344 CN201220403344 CN 201220403344 CN 201220403344 U CN201220403344 U CN 201220403344U CN 202839309 U CN202839309 U CN 202839309U
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- polypropylene film
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Abstract
The utility model discloses a core structure for a DC-bus support capacitor of an electric automobile and the core structure comprises upper and lower two layers of single-margined metalized polypropylene films which are laminated and coiled and comprises polypropylene films. A metal layer is plated on the polypropylene film. An insulation margin is mounted on one side of the metal layer. The margins of the metal layers of the upper and lower two layers of single-margined metalized polypropylene films aren't on the same side. The metal layers are aluminium layers. Aluminium-zinc alloy layers are covered on upper surfaces of one side of the metal layers of the upper and lower two layers of single-margined metalized polypropylene films and the one side of the metal layers is without the margins. A staggered margin is mounted between the upper and lower two layers of single-margined metalized polypropylene films. The core structure for the DC-bus support capacitor greatly reduces risks of capacitor performance descending or capacitor damage.
Description
Technical field
The utility model relates generally to the electric drive system field of new-energy automobile, refers more particularly to the core structures that a kind of electric automobile is used the dc bus support capacitor.
Background technology
Electric automobile of the prior art is used during the dc bus support capacitor makes, and adopts the metallization pole plate of polypropylene film, and the metal of metallization pole plate is divided into compound two kinds of fine aluminium and zinc-aluminium.
The advantage of pure aluminium film is: the compactness of metallization pure aluminium film is good, is not easy oxidation; Shortcoming is: the metallic aluminium of condenser plate from the metallic tin, zinc of drawing layer as electrode etc. because electrode potential different, in the capacitor use procedure, can cause larger electrochemical corrosion in the joint portion, cause electrode to draw layer and electrode loose contact, equivalent series resistance strengthens, loss increase, the heating of core group, capacitor performance descends or damages.
The advantage of zinc-aluminium composite membrane is: zinc-aluminium composition metal and the metallic tin, zinc etc. of drawing layer as electrode are not prone to electrochemical corrosion because electrode potential differs little; Shortcoming is: poor, the easy oxidation of the compactness of metallic diaphragm.Capacitance fall-off is large, and current carrying capacity is weak etc., can cause equally equivalent series resistance to strengthen, loss increase, the heating of core group, and capacitor performance descends or damages.
The utility model is maximized favourable factors and minimized unfavourable ones to pure aluminium film and zinc-aluminium composite membrane, and the core structures of electric automobile being used the dc bus support capacitor improves.
The utility model content
The utility model purpose is exactly in order to remedy the defective of prior art, to provide a kind of electric automobile to use the core structures of dc bus support capacitor.
The utility model is achieved through the following technical solutions:
Electric automobile is used the core structures of dc bus support capacitor, it is characterized in that: include, the lower two-layer limit metallized polypropylene film that singly stays, on, lower two-layerly singly stay the limit metallized polypropylene film to laminate to roll, the described limit metallized polypropylene film that singly stays includes polypropylene screen, be coated with metal level on the polypropylene screen, a wherein side of described metal level is provided with the limit of staying of insulation, on, the lower two-layer metal level that singly stays the limit metallized polypropylene film stay the limit not in the same side, described metal level is aluminum layer, on, the lower two-layer metal level of limit metallized polypropylene film that singly stays does not stay the upper surface of a side on limit to be covered with the alumin(i)um zinc alloy layer, on, lower two-layer singly staying also left misalignment between the metallized polypropylene film of limit.
Described misalignment is positioned at the top that the alumin(i)um zinc alloy layer of limit metallized polypropylene film singly stays in lower floor, and the width of misalignment is 0.8-1mm.
Principle of the present utility model is:
The utility model has utilized the compactness of metal level pure aluminium film good, be not easy oxidation, the advantage that current carrying capacity is strong has overcome again the joint portion of the metallic aluminium of condenser plate and the metallic zinc of drawing layer as electrode because electrode potential different, and has formed electrochemical corrosion; The risk that capacitor performance is descended or damage reduces greatly.
The utility model has the advantages that:
1, the compactness of metallization pure aluminium film is good, is not easy oxidation.
2, the edge thickening has strengthened current carrying capacity.
3, the edge adopts joint portion that allumen overcome the metallic aluminium of condenser plate and the metallic zinc of drawing layer as electrode because electrode potential different, and the formation electrochemical corrosion.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, electric automobile is used the core structures of dc bus support capacitor, include, the lower two-layer limit metallized polypropylene film that singly stays, on, lower two-layerly singly stay the limit metallized polypropylene film to laminate to roll, singly stay the limit metallized polypropylene film to include polypropylene screen 1, be coated with metal level 2 on the polypropylene screen 1, what a wherein side of metal level 2 was provided with insulation stays limit 3, on, lower two-layer singly stay the limit metallized polypropylene film metal level 2 stay limit 3 not in the same side, metal level 2 is aluminum layer, on, lower two-layer singly stay the limit metallized polypropylene film metal level 2 do not stay the upper surface of a side on limit 3 to be covered with alumin(i)um zinc alloy layer 4, on, lower two-layer singly staying also left misalignment 5 between the metallized polypropylene film of limit.
Claims (2)
1. an electric automobile is used the core structures of dc bus support capacitor, it is characterized in that: include, the lower two-layer limit metallized polypropylene film that singly stays, on, lower two-layerly singly stay the limit metallized polypropylene film to laminate to roll, the described limit metallized polypropylene film that singly stays includes polypropylene screen, be coated with metal level on the polypropylene screen, a wherein side of described metal level is provided with the limit of staying of insulation, on, the lower two-layer metal level that singly stays the limit metallized polypropylene film stay the limit not in the same side, described metal level is aluminum layer, on, lower two-layer singly stay the limit metallized polypropylene film metal level do not stay the upper surface of a side on limit to be covered with the alumin(i)um zinc alloy layer, on, lower two-layer singly staying also left misalignment between the metallized polypropylene film of limit.
2. electric automobile according to claim 1 is used the core structures of dc bus support capacitor, and it is characterized in that: described misalignment is positioned at the top that the alumin(i)um zinc alloy layer of limit metallized polypropylene film singly stays in lower floor, and the width of misalignment is 0.8-1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220403344 CN202839309U (en) | 2012-08-15 | 2012-08-15 | Core structure for DC-bus support capacitor of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220403344 CN202839309U (en) | 2012-08-15 | 2012-08-15 | Core structure for DC-bus support capacitor of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202839309U true CN202839309U (en) | 2013-03-27 |
Family
ID=47950953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220403344 Expired - Lifetime CN202839309U (en) | 2012-08-15 | 2012-08-15 | Core structure for DC-bus support capacitor of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202839309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915836A (en) * | 2012-08-15 | 2013-02-06 | 芜湖市金诚电子有限责任公司 | Core structure of DC (Direct Current) bus supporting capacitor applied to electric vehicle |
-
2012
- 2012-08-15 CN CN 201220403344 patent/CN202839309U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915836A (en) * | 2012-08-15 | 2013-02-06 | 芜湖市金诚电子有限责任公司 | Core structure of DC (Direct Current) bus supporting capacitor applied to electric vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160601 Address after: 241000, grinding Hill Road No. 2, three mountain Economic Development Zone, Wuhu, Anhui Patentee after: ANHUI HUAWEI NEW ENERGY Co.,Ltd. Address before: 241080 three mountain Economic Development Zone, Anhui, Wuhu Patentee before: Wuhu Jincheng Electronic Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |