CN203026363U - Square direct current (DC) capacitor - Google Patents
Square direct current (DC) capacitor Download PDFInfo
- Publication number
- CN203026363U CN203026363U CN 201220664185 CN201220664185U CN203026363U CN 203026363 U CN203026363 U CN 203026363U CN 201220664185 CN201220664185 CN 201220664185 CN 201220664185 U CN201220664185 U CN 201220664185U CN 203026363 U CN203026363 U CN 203026363U
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- Prior art keywords
- shell
- copper sheet
- capacitor
- plate
- direct current
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- Expired - Fee Related
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Abstract
The utility model discloses a square direct current (DC) capacitor which comprises a shell, an insulating layer and a core group consisting of a plurality of cores, wherein a leading-out terminal is connected with a leading-out copper sheet; the leading-out copper sheet is connected with a connecting copper sheet of the core group; the connecting copper sheet is welded on metal spraying layers of the two poles of the cores; the shell is also internally provided with a locating plate; epoxy resin sealing compound is sealed on the locating plate, and polyurethane resin sealing compound is sealed under the locating plate; and an end plate of the shell is provided with a nut. According to the square DC capacitor, the shell is a product molded for once, and the end plate of the shell is provided with the nut, so that the two products can be fixed and the stability of the products can be ensured. The product can be sealed by the two sealing materials, so that the cores are prevented from being influenced by the outside moist gas.
Description
Technical field
The utility model relates to a kind of capacitor, is specifically related to a kind of direct current capacitor.
Background technology
During as the power supply of inverter, the element that supports " DC-Link " is capacitor at direct current.The effect of " DC-Link " capacitor is mainly to absorb to come from the high amplitude pulsating current that inverter is asked for to " DC-Link ", stop it to produce high amplitude pulsating voltage in the impedance of " DC-Link ", make the mains fluctuations of inverter end remain on allowed band.Second effect of " DC-Link " capacitor is exactly to prevent from coming from the voltage overshoot of " DC-Link " and instantaneous overvoltage to the impact of inverter, needing in use tens of Parallel-connected Capacitors to get up uses together, general capacitor only depends on the exit of copper connecting plate at capacitor and connects, and often causes the fixing unstable situation of capacitor box body to occur.
The utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, and a kind of fixing more steady square direct current capacitor is provided.
The technical solution of the utility model realizes in the following manner: a kind of square direct current capacitor, comprise the molecular core group of shell, insulating barrier and several cores, leading-out terminal with draw copper sheet and be connected, drawing copper sheet is connected with the copper sheet that is connected of core group, connect copper sheet and be welded on the gilding layer at fuse the two poles of the earth, also be provided with location-plate in shell, be sealed with epoxide resin encapsulation material on location-plate, the location-plate lower seal has the polyurethane resin potting compound, and the end plate of shell is provided with nut.
Described core group is comprised of 4 ~ 8 fuses.
In the utility model, shell is that the end plate of one-shot forming goods and shell is provided with nut, can be used for fixing between product, can guarantee that product is firm.Two kinds of potting compounds can be realized the sealing of product, and the protection fuse is not affected by extraneous wet gas.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that schematic diagram is looked on the left side of Fig. 1.
Fig. 3 is the schematic top plan view of Fig. 1.
Embodiment
As shown in drawings, a kind of square direct current capacitor, comprise the core group that shell 7, insulating barrier 6 and several fuses 1 form, leading-out terminal 5 with draw copper sheet 3 and be connected, draw copper sheet 3 and be connected with the copper sheet 2 that is connected of core group, connect copper sheet 2 and be welded on the gilding layer at fuse the two poles of the earth, also be provided with location-plate 4 in shell 7, be sealed with epoxide resin encapsulation material 9 on location-plate 4, location-plate 4 lower seals have polyurethane resin potting compound 8, and the end plate of shell 7 is provided with nut 10.
Described core group is comprised of 4 ~ 8 fuses.
In the utility model, draw copper sheet 3 and adopt the soldering form with being connected copper sheet 2, guarantee that fuse 1 is connected with the reliable of leading-out terminal 5.The interiors of products potting compound adopts two kinds, and location-plate 4 times is not subjected to the impact of extraneous wet gas with insulation property polyurethane resin embedding preferably with the protection fuse, use the black epoxy embedding on location-plate 4, assurance product appearance attractive in appearance.Shell is metallic article, is the one-shot forming goods, and on the end plate of shell both sides, two embedded aluminum nuts 10 is arranged respectively, is used for fixing between product, guarantees that product is firm.
Claims (2)
1. square direct current capacitor, comprise the core group that shell (7), insulating barrier (6) and several fuses (1) form, it is characterized in that: leading-out terminal (5) with draw copper sheet (3) and be connected, drawing copper sheet (3) is connected with the copper sheet (2) that is connected of core group, connecting copper sheet (2) is welded on the gilding layer at fuse the two poles of the earth, also be provided with location-plate (4) in shell (7), be sealed with epoxide resin encapsulation material (9) on location-plate (4), location-plate (4) lower seal has polyurethane resin potting compound (8), and the end plate of shell (7) is provided with nut (10).
2. square direct current capacitor according to claim 1, it is characterized in that: described core group is comprised of 4 ~ 8 fuses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664185 CN203026363U (en) | 2012-12-06 | 2012-12-06 | Square direct current (DC) capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664185 CN203026363U (en) | 2012-12-06 | 2012-12-06 | Square direct current (DC) capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203026363U true CN203026363U (en) | 2013-06-26 |
Family
ID=48650329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220664185 Expired - Fee Related CN203026363U (en) | 2012-12-06 | 2012-12-06 | Square direct current (DC) capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203026363U (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 |
-
2012
- 2012-12-06 CN CN 201220664185 patent/CN203026363U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20211206 |