CN204516587U - Ditrysian type for capacitor core group draws copper strips - Google Patents
Ditrysian type for capacitor core group draws copper strips Download PDFInfo
- Publication number
- CN204516587U CN204516587U CN201520216327.2U CN201520216327U CN204516587U CN 204516587 U CN204516587 U CN 204516587U CN 201520216327 U CN201520216327 U CN 201520216327U CN 204516587 U CN204516587 U CN 204516587U
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- copper strips
- capacitor core
- hole
- capacitor
- metal spraying
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Abstract
The utility model relates to a kind of ditrysian type for capacitor core group and draws copper strips, comprises the copper strips body for covering the metal spraying face, each capacitor core side forming capacitor core group, and the terminal connection part be electrically connected with leading-out terminal; Copper strips body has the upper through-hole leading to each capacitor core metal spraying face upper area, in the middle of upper through-hole diapire, have the upper elastic fin raised up; Copper strips body has the lower through-hole in each capacitor core metal spraying basifacial region led to except bottom capacitor core, the lower elastic fin of oriented lower convexity in the middle of lower through-hole upper wall.By arranging upper and lower part through hole and upper and lower elastic fin on copper strips, can increase and draw copper strips conveyance capacity, can not only condenser capacity be increased, heat dispersion and the insulation property of capacitor can also be improved.
Description
Technical field
The utility model relates to the assembly for high-power electric capacitor, and specifically a kind of ditrysian type for capacitor core group draws copper strips.
Background technology
Now in metallized film capacitor commercially, the inner capacitor core used is generally by flat fuse and circle two kinds, fuse.Electric capacity circle fuse is easy to produce, and capacity more easily controls, and capacitor thin film is relatively more even with field strength distribution between film, and therefore round fuse capacitor uses also more and more wider.Due to the volume to capacitor in practical application, capacity, and the requirement of electric current is more and more harsher.The fuse diameter of circle fuse capacitor is also increasing, and such as, the round fuse largest diameter used for capacitor in SVG or flexible direct current power transmission and transformation reaches 12cm.Single capacitor core is electrically connected the core group forming whole capacitor by copper strips.Copper strips is welded on capacitor core by scolding tin, and common copper strips is inconvenient to weld under the ability prerequisite meeting overcurrent, and often its current capacity is very low in convenient welding, and copper strips can not be utilized to go to dispel the heat to capacitor.
Such as, the applicant is propose in the patent of CN202977169U at publication number: arrange on conducting strip from copper strips to projected side wall or be referred to as elastic fin, the free end of each elastic fin welds with a capacitor core metal spraying face, both facilitated and welded with capacitor core, copper strips can be realized again and capacitor core flexibly connects, to avoid causing solder joint to loosen or obscission because capacitor is subject to external vibration.But because elastic fin is arranged on copper strips sidewall, make copper strips restricted width, its current capacity is lower, is also unfavorable for that capacitor dispels the heat, and makes condenser capacity limited.
Summary of the invention
The purpose of this utility model is to provide a kind of ditrysian type for capacitor core group and draws copper strips, can improve the current capacity of drawing copper strips, increases condenser capacity, also can improve capacitor heat dispersion.
The utility model is achieved in that the ditrysian type for capacitor core group draws copper strips, and described capacitor core group is made up of row or multiple row capacitor core, and every column capacitance fuse is formed by several cylindrical capacitive fuse stacked on top; Described extraction copper strips comprises for covering the copper strips body in metal spraying face, each capacitor core side forming capacitor core group, and is positioned at the terminal connection part that copper strips body upper end is used for being electrically connected with the leading-out terminal on cover plate assembly; It is characterized in that: copper strips body has the upper through-hole leading to each capacitor core metal spraying face upper area, having in the middle of upper through-hole diapire raise up in banded, be used for capacitor core metal spraying face by welding the upper elastic fin be electrically connected; Copper strips body has the lower through-hole in each capacitor core metal spraying basifacial region led to except bottom capacitor core, in the middle of lower through-hole upper wall oriented lower convexity in banded, be used for capacitor core metal spraying face by welding the lower elastic fin be electrically connected.
Because elastic fin is arranged in the through hole of upper and lower part, make copper strips body can carry out maximization at Width and arrange, thus copper strips width increases significantly compared with conventional capacitor copper strips used, and overflow section is increased exponentially.Simultaneously, each capacitor core except bottom capacitor fuse welds with upper and lower elastic fin free end respectively, conveyance capacity between capacitor core and copper strips is increased exponentially, thus can use the major diameter capacitor core that capacity is larger, condenser capacity can significantly be increased.Meanwhile, because this bulk area of copper strips is also multiplied, its area of dissipation is similarly multiplied, and capacitor heat dispersion is significantly strengthened.Copper strips not only realizes flexible electrical with the capacitor core of core group by upper and lower elastic fin and is connected, the solder joint obscission that capacitor causes by core group borrow when external force vibrations or impact can be overcome, and the upper and lower elastic fin oppositely arranged plays support and suspension effect respectively to same capacitor core, make the position stability of capacitor core in capacitor core group, make solder joint more firm.
Further, corresponding with each capacitor core on copper strips body upper through-hole lower end position is exposed in upper through-hole with at least can making the mandrel segment of corresponding capacitance fuse.When pouring into filler in capacitor, filler can directly be entered in plug by upper through-hole and fill up plug inside, to prevent from trickling down the not good problem of the insulation property brought at the metal spraying dust of plug inside.
Further, corresponding with each capacitor core on copper strips body lower through-hole upper end position is exposed in lower through-hole with at least can making the mandrel segment of corresponding capacitance fuse.Equally, filler also can directly be entered in plug by lower through-hole and fill up plug inside.
Further, each upper through-hole on copper strips body is in the semicircle be bent upwards or half-oval shaped, and each lower through-hole is reclinate semicircle or half-oval shaped.Be compared to the through hole of square opening or other shapes, space can be saved more in semicircle or semiellipse hole, and make the Area comparison of Available cupper on copper strips large, improve the utilance of copper strips, the performance of heat radiation also can be improved.
Further, corresponding with each capacitor core on copper strips body upper and lower part through hole and upper and lower elastic fin are in being symmetrical arranged up and down.This structure had both facilitated copper strips to process, simultaneously because the copper strips part in the middle of upper and lower elastic fin and upper and lower part through hole forms "+" word shape, be conducive to the elasticity improving upper and lower elastic fin, the impulsive force of a part can be cushioned under jerk environment, can effectively prevent solder joint from coming off.
As shown from the above technical solution, the utility model is by copper strips being arranged the upper and lower part through hole and upper and lower elastic fin that are connected with capacitor core metal spraying face, the width of extraction copper strips is not only made to increase exponentially, also make the conveyance capacity between capacitor core and copper strips increase exponentially simultaneously, thus capacitor core group can adopt diameter to reach the major diameter large bulk capacitance fuse of 12cm, and condenser capacity can significantly be increased.Such as with thickness 3um, the single capacitor core of the diameter 12cm of the polypropylene metallized film winding of width 15cm is example, and capacity can reach 3300uF.And be also multiplied owing to drawing copper strips area, its area of dissipation is similarly multiplied, and can improve the heat dispersion of capacitor.In addition, draw copper strips and realize flexible electrical by the upper and lower elastic fin oppositely arranged with the capacitor core of core group and is connected, solder joint is firm, can overcome capacitor shaken by external force or impact time core group borrow and the solder joint obscission that causes.And the polyurethane be poured in capacitor or plant wet goods filler can be filled in plug fully and draw copper strips with between core group, the creepage distance that can effectively overcome between capacitor both positive and negative polarity that metal spraying ash because being scattered in plug inside and copper strips cause with the air void between core group shortens, normally uses bring potential safety hazard to capacitor, can improve the insulation property of capacitor.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the capacitor core group structural representation adopting the utility model to draw copper strips.
In figure, the implication of label symbol is as follows:
Copper strips part 14-terminal connection part 15-copper strips body bottom portion 21-upper through-hole 211-upper through-hole diapire 22-lower through-hole 221-lower through-hole upper wall 3-capacitor core 31-plug 3a-bottom capacitor core 41 in the middle of elastic fin 13-under elastic fin 12-on 1-copper strips body 11-, 42,43-solder joint 5-insulation board
Embodiment
Below in conjunction with accompanying drawing, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 3, in this example, capacitor core group is divided into two row, often row four stacked on top by eight cylindrical capacitive fuses 3 and forms.It is pointed out that capacitor core group can adopt row or multiple row capacitor core.The structure of capacitor can be the patent of CN202977169U see publication number.
As shown in Figure 1, 2, 3, draw the structure of copper strips and comprise copper strips body 1 for covering the metal spraying face, each capacitor core 3 side forming capacitor core group, and be positioned at the terminal connection part 14 that copper strips body 1 upper end is used for being electrically connected with the leading-out terminal on cover plate assembly.
Copper strips body 1 has the upper through-hole 21 leading to each capacitor core 3 metal spraying face upper area, having in the middle of upper through-hole diapire 211 raise up in banded, be used for capacitor core metal spraying face by welding the upper elastic fin 11 be electrically connected; Copper strips body 1 also has the lower through-hole 22 in each capacitor core metal spraying basifacial region led to except bottom capacitor core 3a, in the middle of lower through-hole upper wall 221 oriented lower convexity in banded, be used for capacitor core metal spraying face by welding the lower elastic fin 12 be electrically connected.Consider that upper and lower part through hole 21,22 needs one fixed width, copper strips body width at least can cover most of region in each capacitor core metal spraying face, preferably each capacitor core diameter more than 3/4ths.
Injecting in plug 31 for convenience of filler and fill up plug inside, upper through-hole 21 lower end position corresponding with each capacitor core 3 on copper strips body 1 at least can make the plug 31 of corresponding capacitance fuse partly be exposed in upper through-hole 21.Lower through-hole 22 upper end position corresponding with each capacitor core 3 on copper strips body 1 at least can make the plug 31 of corresponding capacitance fuse partly be exposed in lower through-hole 22.
For expanding the area of copper strips body 1, each upper through-hole 21 on copper strips body 1 is in the semicircle be bent upwards or half-oval shaped, and each lower through-hole 22 is in reclinate semicircle or half-oval shaped.
For convenience of processing and improving the elasticity of elastic fin, upper and lower part through hole 21,22 corresponding with each capacitor core 3 on copper strips body 1 and upper and lower elastic fin 11,12, in being symmetrical arranged up and down, make the middle copper strips part 13 of upper and lower elastic fin 11,12 and upper and lower part through hole form "+" word shape.
In addition in figure 3, piece number 41,42 is the solder joint that upper and lower elastic fin 11,12 is electrically connected with capacitor core 3 metal spraying face.Piece number 5 is draw the insulation board between the terminal connection part 14 of copper strips upper end and capacitor core.
It is pointed out that and copper strips body does not need to offer the lower through-hole corresponding to bottom capacitor fuse, also do not need to arrange lower elastic fin.Copper strips body bottom portion 15 can be arranged on the plug lower position of bottom capacitor core 3a, come out in plug bottom with can having fraction, so that charges enter in plug, directly can weld with capacitor core Lower Half metal spraying face at copper strips body bottom portion 15 and form solder joint 43, to improve the conveyance capacity of bottom capacitor core 3a.
The capacitor core diameter that the capacitor core group adopting the utility model to draw copper strips adopts can reach 12cm.For the single capacitor core of the diameter 12cm of the polypropylene metallized film of thickness 3um, width 15cm winding, capacity can reach 3300uF.
Claims (5)
1. the ditrysian type for capacitor core group draws copper strips, and described capacitor core group is made up of row or multiple row capacitor core, and every column capacitance fuse is formed by several cylindrical capacitive fuse stacked on top; Described extraction copper strips comprises for covering the copper strips body (1) in metal spraying face, each capacitor core side forming capacitor core group, and is positioned at the terminal connection part (14) that copper strips body (1) upper end is used for being electrically connected with the leading-out terminal on cover plate assembly; It is characterized in that: copper strips body (1) has the upper through-hole (21) leading to each capacitor core (3) metal spraying face upper area, having in the middle of upper through-hole diapire (211) raise up in banded, be used for capacitor core (3) metal spraying face by welding the upper elastic fin (11) be electrically connected; Copper strips body (1) has the lower through-hole (22) in each capacitor core (3) the metal spraying basifacial region led to except bottom capacitor core (3a), in the middle of lower through-hole upper wall (221) oriented lower convexity in banded, be used for capacitor core (3) metal spraying face by welding the lower elastic fin (12) be electrically connected.
2. the ditrysian type for capacitor core group according to claim 1 draws copper strips, it is characterized in that: upper upper through-hole (21) lower end position corresponding with each capacitor core (3) of copper strips body (1) at least can make the plug of corresponding capacitance fuse (31) partly be exposed in upper through-hole (21).
3. the ditrysian type for capacitor core group according to claim 1 draws copper strips, it is characterized in that: upper lower through-hole (22) upper end position corresponding with each capacitor core (3) of copper strips body (1) at least can make the plug of corresponding capacitance fuse (31) partly be exposed in lower through-hole (22).
4. the ditrysian type for capacitor core group according to claim 1 draws copper strips, it is characterized in that: each upper through-hole (21) on copper strips body (1) is in the semicircle be bent upwards or half-oval shaped, and each lower through-hole (22) is in reclinate semicircle or half-oval shaped.
5. the ditrysian type for capacitor core group according to claim 1 or 2 or 3 or 4 draws copper strips, it is characterized in that: the upper upper and lower part through hole (21,22) corresponding with each capacitor core (3) of copper strips body (1) and upper and lower elastic fin (11,12) are in being symmetrical arranged up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520216327.2U CN204516587U (en) | 2015-04-10 | 2015-04-10 | Ditrysian type for capacitor core group draws copper strips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520216327.2U CN204516587U (en) | 2015-04-10 | 2015-04-10 | Ditrysian type for capacitor core group draws copper strips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204516587U true CN204516587U (en) | 2015-07-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520216327.2U Expired - Fee Related CN204516587U (en) | 2015-04-10 | 2015-04-10 | Ditrysian type for capacitor core group draws copper strips |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204516587U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063048A (en) * | 2017-12-12 | 2018-05-22 | 珠海格力新元电子有限公司 | Busbar and with its capacitor |
-
2015
- 2015-04-10 CN CN201520216327.2U patent/CN204516587U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063048A (en) * | 2017-12-12 | 2018-05-22 | 珠海格力新元电子有限公司 | Busbar and with its capacitor |
| CN108063048B (en) * | 2017-12-12 | 2024-02-27 | 珠海格力新元电子有限公司 | Busbar and capacitor with same |
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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: 20150729 Termination date: 20210410 |