CN204102714U - Many pins boxlike film capacitor - Google Patents
Many pins boxlike film capacitor Download PDFInfo
- Publication number
- CN204102714U CN204102714U CN201420442971.7U CN201420442971U CN204102714U CN 204102714 U CN204102714 U CN 204102714U CN 201420442971 U CN201420442971 U CN 201420442971U CN 204102714 U CN204102714 U CN 204102714U
- Authority
- CN
- China
- Prior art keywords
- capacitor
- capacitor element
- plastic casing
- lead
- film
- 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 - Fee Related
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Abstract
The utility model discloses a kind of many pins boxlike film capacitor, gone between by plastic casing, capacitor element and TC and form, wherein plastic casing is six box bodys of the uncovered shape of one side, capacitor element is the two-layer parallel coiling structure of metallized film, and one of capacitor element extremely soldered three TC lead-in wire, another extremely soldered three TC lead-in wire; This capacitor element is contained in plastic casing, and the perfusion of this plastic casing is provided with epoxy sealing capacitor element and six TC lead-in wires expose to epoxy resin.The ESR that this film capacitor of the utility model compares to traditional capacitor significantly reduces, and under equivalent capability, the ESR of 6 stitch capacitors is generally little by 50% than 2 stitch capacitors; Rated capacity and the rated current of capacitor improve all greatly, also reduce the own inductance of capacitor simultaneously.
Description
Technical field
The utility model relates to a kind of many pins boxlike film capacitor, belongs to film capacitor field.
Background technology
The capacity moulding shell DC-LINK capacitor be applied on frequency converter pcb board is increasing, and the capacitance of traditional two pin capacitors and resistance to electric current all less, can not meet the development of frequency converter.And highly integrated due to circuit design, needs to improve capacitance and resistance to electric current maintaining below certain volume usually.
Summary of the invention
The purpose of this utility model is to propose a kind of many pins boxlike film capacitor, solves the problem that single core capacitor expands capacitance and promotes resistance to electric current.
The purpose of this utility model, to be achieved by the following technical programs: a kind of many pins boxlike film capacitor, it is characterized in that is gone between by plastic casing, capacitor element and TC forms, wherein said plastic casing is six box bodys of the uncovered shape of one side, capacitor element is the two-layer parallel coiling structure of metallized film, and one of capacitor element extremely soldered three TC lead-in wire, another extremely soldered three TC lead-in wire; Described capacitor element is contained in plastic casing, and described plastic casing perfusion is provided with epoxy sealing capacitor element and six TC lead-in wires expose to epoxy resin.
Further, described metallized film is the stepped metal thickened area of insulation film and surface vacuum plating thereof, metal high square resistance district.
The beneficial effects of the utility model are mainly reflected in: the ESR that this film capacitor compares to traditional capacitor significantly reduces, and under equivalent capability, the ESR of 6 stitch capacitors is generally little by 50% than 2 stitch capacitors; Rated capacity and the rated current of capacitor improve all greatly, also reduce the own inductance of capacitor simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model film capacitor.
Fig. 2 is the structure cutaway view of the utility model metallized film.
Embodiment
Below just accompanying drawing in conjunction with the embodiments, is described in further detail embodiment of the present utility model, is easier to understand, grasp to make technical solutions of the utility model.
As depicted in figs. 1 and 2, be the structure cutaway view that the axis of no-feathering of the utility model many pins boxlike film capacitor cuts open schematic diagram and metallized film thereof.From diagram: this many pins boxlike film capacitor is made up of plastic casing 1, capacitor element 2 and TC lead-in wire 3, wherein plastic casing 1 is six box bodys of the uncovered shape of one side, extremely soldered three TC lead-in wire 3 of capacitor element 2, another pole soldered three TC lead-in wire 3 again; The capacitor element 2 completing welding is contained in plastic casing 1, then perfusion is provided with epoxy resin 4 and seals and capacitor for voltage protection sub-prime and six TC lead-in wire exposes to epoxy resin in plastic casing 1.
Wherein said capacitor element 2 is the two-layer parallel coiling structure of metallized film, and as shown in Figure 2, and this metallized film is the stepped metal thickened area 21 of insulation film 22 and surface vacuum plating thereof, metal high square resistance district 23.Cut the width of insulation film 22 by electric capacity specifications design, under vacuum by zinc, aluminum metal evaporation on the insulation film of polypropylene material, the shape of coating is as notch cuttype.
When manufacturing, after the metallized film coiling completing vacuum evaporation makes capacitor element, adopt inner lead each soldered on three TC lead-in wires respectively at two of capacitor element electrodes, then put in plastic casing by the capacitor element welded, inner filling epoxy resin sealing capacitor element also makes the pin of six TC lead-in wires fix in the epoxy.
The utility model designs and has manufactured film capacitor obtained, and has the advantage that equivalent series resistance is less than 1 milliohm; Capacitor self-heating is low, improves maximum operating currenbt and the working temperature of capacitor, significantly extends useful life.
In addition to the implementation, the utility model can also have other execution mode.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the utility model scope required for protection.
Claims (2)
1. more than pin boxlike film capacitor, it is characterized in that is gone between by plastic casing, capacitor element and TC forms, wherein said plastic casing is six box bodys of the uncovered shape of one side, capacitor element is the two-layer parallel coiling structure of metallized film, and one of capacitor element extremely soldered three TC lead-in wire, another extremely soldered three TC lead-in wire; Described capacitor element is contained in plastic casing, and described plastic casing perfusion is provided with epoxy sealing capacitor element and six TC lead-in wires expose to epoxy resin.
2. many pins boxlike film capacitor according to claim 1, is characterized in that: described metallized film is the stepped metal thickened area of insulation film and surface vacuum plating thereof, metal high square resistance district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442971.7U CN204102714U (en) | 2014-08-07 | 2014-08-07 | Many pins boxlike film capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442971.7U CN204102714U (en) | 2014-08-07 | 2014-08-07 | Many pins boxlike film capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204102714U true CN204102714U (en) | 2015-01-14 |
Family
ID=52271121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420442971.7U Expired - Fee Related CN204102714U (en) | 2014-08-07 | 2014-08-07 | Many pins boxlike film capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204102714U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463015A (en) * | 2020-03-30 | 2020-07-28 | 安徽麦特电子股份有限公司 | Film capacitor shell convenient to assemble |
-
2014
- 2014-08-07 CN CN201420442971.7U patent/CN204102714U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111463015A (en) * | 2020-03-30 | 2020-07-28 | 安徽麦特电子股份有限公司 | Film capacitor shell convenient to assemble |
| CN111463015B (en) * | 2020-03-30 | 2021-08-20 | 安徽麦特电子股份有限公司 | Film capacitor shell convenient to assemble |
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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: 20150114 Termination date: 20160807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |