CN203882637U - Laminated busbar having bending structure - Google Patents
Laminated busbar having bending structure Download PDFInfo
- Publication number
- CN203882637U CN203882637U CN201420233910.XU CN201420233910U CN203882637U CN 203882637 U CN203882637 U CN 203882637U CN 201420233910 U CN201420233910 U CN 201420233910U CN 203882637 U CN203882637 U CN 203882637U
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- China
- Prior art keywords
- bending
- bus bar
- dielectric film
- stack bus
- release film
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Abstract
The utility model provides a laminated busbar having a bending structure. The laminated busbar comprises a plurality of electric conduction layers and a plurality of insulating films, wherein at least two insulating films are arranged between every two neighboring electric conduction layers, and a release film is arranged between the insulating films between neighboring electric conduction layers arranged at a bending part of the laminated busbar. The quantity of the release film can be determined on the basis of specific laminated busbar manufacture technologies, one or more release films can be arranged, and even space between every two neighboring insulating films can be provided with the release film. The laminated busbar is advantageous in that the release film is mounted between the insulating films of the laminated busbar, influence exerted on the laminated busbar by the bending part can be reduced in a bending process after the laminated busbar is subjected to press fit molding operation, the laminated busbar is reduced in rate of insulating film explosion in the bending process, and the laminated busbar having the bending structure is greatly improved in yield.
Description
Technical field
the utility model relates to field of electrical equipment, particularly a kind of stack bus bar with bending structure of distribution system.
Background technology
laminated bus bars, claim again composite bus bar, low-inductance bus, that a kind of multi-layer compound structure connects row, there are the high-power modular syndeton parts that can repeat the features such as electric property, Low ESR, anti-interference, good reliability, assembling be succinct, be widely used in electric power and mix the power conversion module etc. of traction, power switch system, electricity generation system, electrical equipment.Laminated bus bars is due to system demand, and structure is more and more compacter, often need to use the structure of L-type bending and Z-type bending, to facilitate the installation of various environments for use.
in actual processing process, the bending structure of laminated bus bars can be realized by three kinds of modes: 1. directly bending after busbar one step press; 2. bending respectively after individual layer pressing, more whole pressing or bonding with glue.3. after panel beating bending, be put into whole pressing in special mould together with dielectric film.Directly bending method working (machining) efficiency is high, but because stack bus bar is fixed together by a plurality of individual layer bus bar stacks, during bending, interlayer shear stress is larger, can cause stack bus bar insulating film of intermediate layer cracking, and scrappage is high.Therefore, how to improve after stack bus bar one step press the directly rate of finished products of bending, become the major issue that busbar manufacture field need to solve.
Utility model content
for solving after existing stack bus bar one step press the problem that busbar rate of finished products is low that builds up that the direct method of bending processes, the utility model provides following technical scheme:
a stack bus bar with bending structure, described stack bus bar comprises multilayer conductive layer and multilayer insulating film, the dielectric film between adjacent conductive layer is more than or equal to two-layer, between the dielectric film between the adjacent conductive layer of described stack bus bar bending part, is provided with release film.The quantity of described release film can be determined according to the specification requirement of the stack bus bar of concrete making, can be one, can be also multiple, can also between all adjacent dielectric films, all be provided with release film.
when the dielectric film of certain adjacent conductive interlayer has when two-layer, between this two-layer dielectric film, place a release film; When the dielectric film of certain adjacent conductive interlayer has three layers, this is three-layer insulated intermembranously can place a release film, also can place two release films; When the dielectric film of certain adjacent conductive interlayer has N(N to be greater than 3 natural number) during layer, can place a release film, also can place two release films, can place at most N-1 and open release film, between every two adjacent dielectric films, only place a release film.Between said every two adjacent dielectric films, only place a release film herein and refer to that this stack bus bar only has place bending, if while having many places bending, in different bendings, need to place respectively release film, can occur the phenomenon of placing multiple release films between two identical dielectric films.When conductive layer is more, can select to add release film between the dielectric film between some conductive layer, between the dielectric film between also can all conductive layers, all add release film.
when the bending structure of described stack bus bar is L-type bending, the length of described release film is for extending to the two ends of stack bus bar along described bending line direction, the width of described release film is to a folding surface direction, to extend 10～15mm by bending line, extends to the outer edge of dielectric film to another folding surface direction.As further preferred version, the outward flange that another folding surface is described folding surface is apart from the folding surface of bending line close together.Release film extends to the end of dielectric film, can be mutually concordant with the outward flange of dielectric film, also can protrude from the edge of dielectric film, than long several millimeters or several centimetres of dielectric film.
when the bending structure of described stack bus bar is Z-type bending, described release film has two kinds of big or small modes of emplacements, the first: the length of described release film is for extending to the two ends of dielectric film along described bending line direction, the width of described release film is that two bending lines are respectively to respectively extending 5～10mm away from the folding surface direction of adjacent bending line one side.The second: the length of described release film is for extending to the two ends of dielectric film along described bending line direction, two bendings of described Z-type bending are respectively the first bending and the second bending, the width of described release film is that the first fold curved line of Z-type bending is extended 5～10mm along the folding surface direction away from the second bending line, and the second bending line extends to dielectric film edge to the folding surface direction away from first fold curved line.As further preferred version, described the second bending is the bending line bending nearer apart from its outward flange in two bendings of Z-type bending.
the utility model advantage is: the utility model by installing release film additional in the dielectric film of stack bus bar, reduce the impact of the mutual stress of bending part in the Forging Process of stack bus bar after pressing and forming, reduce the probability of the dielectric film explosion of stack bus bar in bending and molding process, greatly improved the rate of finished products of the stack bus bar with bending structure.
Accompanying drawing explanation
fig. 1 is the utility model the first embodiment explosive view;
fig. 2 is the utility model the first embodiment release film displacement structure schematic diagram;
fig. 3 is the utility model the first embodiment bending and molding structural representation;
fig. 4 is the utility model the second embodiment and the 3rd embodiment explosive view;
fig. 5 is the utility model the second embodiment and the 3rd embodiment bending and molding structural representation;
fig. 6 is the utility model the 4th embodiment explosive view;
fig. 7 is the utility model the 4th embodiment bending and molding structural representation.
number in the figure is:
111,112,211,212,411,412,413-conductive layer
121,122,123,124,221,222,223,224,225,421,422,423,424,425,426-dielectric film
13,231,232,331,332,431,432-release film
Embodiment
below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection range of the present utility model is made to more explicit defining.
embodiment 1:L type bending structure
as shown in accompanying drawing 1 the utility model the first embodiment explosive view, stack bus bar comprises conductive layer 111 and conductive layer 112, the outside of conductive layer 111 and conductive layer 112 is respectively equipped with dielectric film 121 and dielectric film 124, between conductive layer 111 and conductive layer 112, be provided with dielectric film 122 and dielectric film 123, between dielectric film 122 and dielectric film 123, be provided with release film 13, release film 13 is placed in bending part, as shown in Fig. 2 the utility model the first embodiment release film displacement structure schematic diagram, two edge bending line directions of release film 13 width are stretched out from the both sides of dielectric film, the both sides of this width can be concordant with dielectric film edge, also can exceed the edge of dielectric film, extend laterally certain length, one back gauge bending line 10mm of release film 13 length, the another side of release film 13 length is from one of them folding surface to extend to the edge of dielectric film away from bending line direction, this limit can be concordant with the edge of dielectric film, also can exceed the edge of dielectric film, extend laterally certain length, this folding surface is its outward flange folding surface nearer apart from bending line, from figure, i.e. and that less folding surface of surface area.As shown in Fig. 3 the utility model the first embodiment bending and molding structural representation, after one step press moulding bending, the mutual stress of the bending part interlayer of stack bus bar reduces, and has greatly reduced the probability of dielectric film explosion, thereby improves the rate of finished products of stack bus bar.
through experimental test, a back gauge bending line 11mm of release film 13 length, 12mm, 13mm, 14mm, 15mm can reduce the probability of dielectric film explosion well, guarantee the bending effect and function characteristic of stack bus bar simultaneously.
embodiment 2 and embodiment 3:L type bending structure and Z-type bending structure
the stack bus bar of the present embodiment has L-type bending and Z-type bending simultaneously, lays respectively at the not homonymy of stack bus bar.
as shown in Fig. 4 the utility model the second embodiment and the 3rd embodiment explosive view, this stack bus bar comprises conductive layer 211 and conductive layer 212, the outside of conductive layer 211 and conductive layer 212 is respectively equipped with dielectric film 221 and dielectric film 225, between conductive layer 211 and conductive layer 212, be provided with dielectric film 222, dielectric film 223 and dielectric film 224, L-type bending part between dielectric film 222 and dielectric film 223 is provided with release film 231, Z-type bending part between dielectric film 222 and dielectric film 223 is provided with release film 331, L-type bending part between dielectric film 223 and dielectric film 224 is provided with release film 232, Z-type bending part between dielectric film 223 and dielectric film 224 is provided with release film 332.
release film 231 and release film 232 its bending line directions of width two edges extend to the two ends of dielectric film, concordant with the outward flange of dielectric film, a back gauge bending line 12mm of length, and the another side of length extends to the outer edge of a folding surface, concordant with outward flange.Structural representation after bending and molding, as shown in Fig. 5 the utility model the second embodiment and the 3rd embodiment bending and molding structural representation, has greatly reduced the probability of stack bus bar dielectric film explosion.
release film 331 and release film 332 its bending line directions of width two edges extend to the two ends of dielectric film, concordant with the outward flange of dielectric film, extend to the folding surface direction away from another bending line from a bending line respectively on the both sides of length, wherein on one side from bending line to extending 10mm away from adjacent bending line direction, another side is from bending line to extending to dielectric film edge away from adjacent bending line direction along folding surface, concordant with dielectric film edge, this folding surface is its outward flange folding surface nearer apart from bending line.As shown in Fig. 5 the utility model the second embodiment and the 3rd embodiment bending and molding structural representation, reduced the probability of stack bus bar dielectric film explosion, guarantee the bending effect and function characteristic of stack bus bar simultaneously.
embodiment 4:Z type bending structure
as shown in Fig. 6 the utility model the 4th embodiment explosive view, stack bus bar comprises conductive layer 411, conductive layer 412 and conductive layer 413, the outside of described conductive layer 411 and conductive layer 413 is provided with dielectric film 421 and dielectric film 426, between described conductive layer 411 and conductive layer 412, be provided with dielectric film 422 and dielectric film 423, between dielectric film 422 and dielectric film 423, be provided with release film 431; Between conductive layer 412 and conductive layer 413, be provided with dielectric film 424 and dielectric film 425, between dielectric film 424 and dielectric film 425, be provided with release film 432.Two edge bending line directions of release film 431 and release film 432 width extend to the edge at dielectric film two ends, concordant with dielectric film.The both sides of release film 431 and release film 432 length are respectively extended 10mm from bending line to two folding surfaces away from adjacent bending line direction respectively.As shown in Fig. 7 the utility model the 4th embodiment bending and molding structural representation, reduced the probability of stack bus bar dielectric film explosion, guarantee the bending effect and function characteristic of stack bus bar simultaneously.
through experiment test, in Z-type bending, the length both sides of release film, to there is the effect of good reduction dielectric film explosion probability away from adjacent direction extension 5mm, 6mm, 7mm, 8mm, 9mm, guarantee the bending effect and function characteristic of stack bus bar simultaneously.The length both sides of release film can equate to the length of extending away from adjacent direction, also can be unequal.
the above; it is only embodiment of the present utility model; but protection range of the present utility model is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the utility model; the variation that can expect without creative work or replacement, within all should being encompassed in protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range that claims were limited.
Claims (7)
1. a stack bus bar with bending structure, described stack bus bar comprises multilayer conductive layer and multilayer insulating film, dielectric film between adjacent conductive layer is more than or equal to two-layer, it is characterized in that: between the dielectric film between the adjacent conductive layer of described stack bus bar bending part, be provided with release film.
2. the stack bus bar with bending structure according to claim 1, is characterized in that: between all adjacent dielectric film between the adjacent conductive layer of described stack bus bar bending part, be all provided with release film.
3. according to the stack bus bar with bending structure described in claim 1 or 2, it is characterized in that: when the bending structure of described stack bus bar is L-type bending, the length of described release film is for extending to the two ends of dielectric film along described bending line direction, the width of described release film is to a folding surface direction, to extend 10～15mm by bending line, extends to the outer edge of dielectric film to another folding surface direction.
4. the stack bus bar with bending structure according to claim 3, is characterized in that: the outward flange that described another folding surface is folding surface in described folding surface is apart from the folding surface of bending line close together.
5. according to the stack bus bar with bending structure described in claim 1 or 2, it is characterized in that: when the bending structure of described stack bus bar is Z-type bending, the length of described release film is for extending to the two ends of dielectric film along described bending line direction, the width of described release film is that two bending lines are respectively to respectively extending 5～10mm away from the folding surface direction of adjacent bending line one side.
6. according to the stack bus bar with bending structure described in claim 1 or 2, it is characterized in that: when the bending structure of described stack bus bar is Z-type bending, the length of described release film is for extending to the two ends of dielectric film along described bending line direction, two bendings of described Z-type bending are respectively the first bending and the second bending, the width of described release film is that the first fold curved line of Z-type bending is extended 5～10mm along the folding surface direction away from the second bending line, and the second bending line extends to dielectric film edge to the folding surface direction away from first fold curved line.
7. the stack bus bar with bending structure according to claim 6, is characterized in that: described the second bending is the bending line bending nearer apart from its outward flange in two bendings of Z-type bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420233910.XU CN203882637U (en) | 2014-05-08 | 2014-05-08 | Laminated busbar having bending structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420233910.XU CN203882637U (en) | 2014-05-08 | 2014-05-08 | Laminated busbar having bending structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203882637U true CN203882637U (en) | 2014-10-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420233910.XU Expired - Fee Related CN203882637U (en) | 2014-05-08 | 2014-05-08 | Laminated busbar having bending structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203882637U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734467A (en) * | 2015-04-22 | 2015-06-24 | 永济新时速电机电器有限责任公司 | Power module with lifted stacked structures |
| CN107634411A (en) * | 2017-09-28 | 2018-01-26 | 浙江冠华电气有限公司 | A kind of stack bus bar easy to install |
| CN107634410A (en) * | 2017-09-28 | 2018-01-26 | 浙江冠华电气有限公司 | A kind of stack bus bar |
| CN109979649A (en) * | 2019-04-30 | 2019-07-05 | 阳光电源股份有限公司 | Bus and its pressing mold, bus compression method |
-
2014
- 2014-05-08 CN CN201420233910.XU patent/CN203882637U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104734467A (en) * | 2015-04-22 | 2015-06-24 | 永济新时速电机电器有限责任公司 | Power module with lifted stacked structures |
| CN107634411A (en) * | 2017-09-28 | 2018-01-26 | 浙江冠华电气有限公司 | A kind of stack bus bar easy to install |
| CN107634410A (en) * | 2017-09-28 | 2018-01-26 | 浙江冠华电气有限公司 | A kind of stack bus bar |
| CN107634410B (en) * | 2017-09-28 | 2023-10-31 | 浙江冠华电气有限公司 | Laminated busbar |
| CN107634411B (en) * | 2017-09-28 | 2024-01-26 | 浙江冠华电气有限公司 | Easily install female row of stromatolite |
| CN109979649A (en) * | 2019-04-30 | 2019-07-05 | 阳光电源股份有限公司 | Bus and its pressing mold, bus compression method |
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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: 20141015 Termination date: 20190508 |