CN204464687U - A kind of stack bus bar - Google Patents
A kind of stack bus bar Download PDFInfo
- Publication number
- CN204464687U CN204464687U CN201520207657.5U CN201520207657U CN204464687U CN 204464687 U CN204464687 U CN 204464687U CN 201520207657 U CN201520207657 U CN 201520207657U CN 204464687 U CN204464687 U CN 204464687U
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- China
- Prior art keywords
- negative
- bus bar
- positive
- layer
- binding post
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- 238000009413 insulation Methods 0.000 claims abstract description 29
- 230000004888 barrier function Effects 0.000 claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052802 copper Inorganic materials 0.000 claims abstract description 14
- 239000010949 copper Substances 0.000 claims abstract description 14
- 238000012856 packing Methods 0.000 claims description 3
- 239000004020 conductor Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
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Abstract
The utility model discloses a kind of stack bus bar, comprise upper insulation layer, positive layer busbar, middle part insulating barrier, negative layer busbar, lower insulation layer that face contact is successively connected; The top edge same position place of described upper insulation layer, middle part insulating barrier, lower insulation layer is provided with a concave structure; Described positive layer busbar and negative layer busbar are respectively arranged with positive binding post and negative connecting terminal, and described positive binding post and negative binding post are exposed by described concave structure; The nearest position of layers of copper creepage distance of exposing of described positive layer busbar and/or negative layer busbar is provided with an arc notch; The utility model effectively adds the creepage distance between stack bus bar positive and negative terminals by the mode offering breach, and structure simply, does not need additionally to increase insulated isolated device; Meanwhile, can improve the security performance of stack bus bar, stack bus bar of the present utility model is more suitable for, and electric pressure is higher, the occasion of bad environments.
Description
Technical field
The utility model relates to electric device field, refers to a kind of stack bus bar especially.
Background technology
In order to reduce the stray inductance of DC bus, obtaining higher reliability, in most power module design, using stack bus bar.Stack bus bar compresses folding up insulating barrier bonding in the middle of positive negative layer busbar, goes out connecting hole or draws splicing ear, connect with external circuit in busbar Surface Machining.If laminated bus bar surface connection terminal spacing less (as Fig. 1), does not reach the creepage distance of regulation, will there is potential safety hazard, especially higher in operating voltage, the occasion of bad environments.But the distance between most cases lower surface splicing ear be confined to components' placement and bulk requirement and inconvenience adjustment.
At present, between common increase stack bus bar positive and negative terminals, the mode of creepage distance mainly increases insulated isolated device between positive and negative terminals, creepage distance increase is realized by increasing insulated isolated device between two terminals, the concrete program relates to the structure between a kind of laminated bus bar surface connection terminal, comprise: upper conductor and bottom conductor, there is inner insulating layer therebetween, upper insulating barrier and lower insulating barrier is had respectively: between above-mentioned upper insulating barrier and lower insulating barrier, have pair of terminal: be also included in more than one insulation interrupter between pair of terminal outside two conductors.Although the program can increase the creepage distance between surface terminal to a certain extent, cost can be made to increase, newly-increased device also easy formation when being connected with device is interfered simultaneously.
Utility model content
In view of this, it is simple that the purpose of this utility model is to propose a kind of structure, do not increase cost, and effectively can increase the stack bus bar of creepage distance between surface terminal.
Based on a kind of stack bus bar that above-mentioned purpose the utility model provides, comprise upper insulation layer, positive layer busbar, middle part insulating barrier, negative layer busbar, lower insulation layer that face contact is successively connected; The top edge same position place of described upper insulation layer, middle part insulating barrier, lower insulation layer is provided with a concave structure; Described positive layer busbar and negative layer busbar are respectively arranged with positive binding post and negative binding post, and described positive binding post and negative binding post are exposed by described concave structure; The nearest position of layers of copper creepage distance of exposing of described positive layer busbar and/or negative layer busbar is provided with an arc notch.
Preferably, the same position place of the horizontal component of the described concave structure in described upper insulation layer, middle part insulating barrier, lower insulation layer is provided with a U-shaped breach.
Preferably, described positive binding post and negative connecting terminal are provided with the wiring copper packing for being connected with external circuit.
As can be seen from above, the stack bus bar that the utility model provides, effectively adds the creepage distance between stack bus bar positive and negative terminals by the mode offering breach, and structure simply, does not need additionally to increase insulated isolated device; Meanwhile, can improve the security performance of stack bus bar, stack bus bar of the present invention is more suitable for, and electric pressure is higher, the occasion of bad environments.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is existing stack bus bar positive and negative terminals place structural representation;
Fig. 2 is the stack bus bar positive and negative terminals place structural representation of the utility model embodiment;
Fig. 3 is the stack bus bar explosive view of the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described.
Referring to figs. 2 and 3, be respectively stack bus bar positive and negative terminals place's structural representation of utility model embodiment and the stack bus bar explosive view of the utility model embodiment.
The utility model embodiment provides a kind of stack bus bar, comprises upper insulation layer 1, positive layer busbar 2, middle part insulating barrier 3, negative layer busbar 4, lower insulation layer 5 that face contact is successively connected; The top edge same position place of described upper insulation layer 1, middle part insulating barrier 3, lower insulation layer 5 is provided with a concave structure; Described positive layer busbar 2 and negative layer busbar 4 are respectively arranged with positive binding post 6 and negative binding post 7, and described positive binding post 6 and negative binding post 7 are exposed by described concave structure; The nearest position of layers of copper creepage distance of exposing of described positive layer busbar 2 and/or negative layer busbar 4 is provided with an arc notch.
In the present embodiment, the upper insulation layer 1 that face contact is connected successively, positive layer busbar 2, middle part insulating barrier 3, negative layer busbar 4, lower insulation layer 5 constitute the main part of described stack bus bar.Positive layer busbar 2 is provided with positive binding post 6, negative layer busbar 4 is provided with negative binding post 7.Because positive binding post 6 and negative binding post 7 need to expose to be connected with external circuit, therefore be provided with a concave structure at the top edge same position place of upper insulation layer 1, middle part insulating barrier 3, lower insulation layer 5, three above-mentioned concave structure positions overlap, and just make positive binding post 6 and negative binding post 7 expose.Positive layer busbar 2 and negative layer busbar 4 are except the binding post exposed, also can some layers of copper exposed, namely the creepage distance between positive binding post 6 and negative binding post 7 is made up of the horizontal component exposing vertical marginal portion in layers of copper and described concave structure of positive layer busbar 2 and negative layer busbar 4.Further, the nearest position of layers of copper creepage distance of exposing of positive layer busbar 2 and/or negative layer busbar 4 is provided with an arc notch, that is: on the vertical edge exposing layers of copper of positive layer busbar 2, an arc notch is had, or have an arc notch on the vertical edge exposing layers of copper of negative layer busbar 4, or all there is an arc notch on the vertical edge exposing layers of copper of positive layer busbar 2 and negative layer busbar 4.By the setting of described arc notch, the creepage distance between positive binding post 6 and negative binding post 7 effectively can be increased.
In a preferred embodiment, the horizontal component of described concave structure arranges U-shaped breach, to promote the effect increasing creepage distance further.Concrete, the same position place of the horizontal component of the described concave structure in upper insulation layer, middle part insulating barrier, lower insulation layer is provided with a U-shaped breach.
In the utility model embodiment, the size of the quit a post and thus leave it vacant of described arc notch and U-shaped breach is determined according to stack bus bar intensity and creepage distance.In addition, in order to ensure the connection effect with external circuit further, positive binding post 6 and negative binding post 7 are provided with wiring copper packing.
The utility model exposes by positive layer busbar 2 and/or negative layer busbar 4 the arc notch that the vertical edge of layers of copper is arranged, and upper insulation layer, middle part insulating barrier, the U-shaped breach that the horizontal component of the described concave structure in lower insulation layer is arranged, be a significant increase the creepage distance between positive binding post 6 and negative binding post 7, under preferred embodiment of the present utility model is arranged, creepage distance can increase by 134%, well avoid interference problem between the device that causes because creepage distance falls short of in prior art, simultaneously by simply offering breach design, eliminate and add seal and the installation cost that brings and additional work.
Those of ordinary skill in the field are to be understood that: the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle; any amendment of making, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (3)
1. a stack bus bar, is characterized in that, comprises upper insulation layer, positive layer busbar, middle part insulating barrier, negative layer busbar, lower insulation layer that face contact is successively connected; The top edge same position place of described upper insulation layer, middle part insulating barrier, lower insulation layer is provided with a concave structure; Described positive layer busbar and negative layer busbar are respectively arranged with positive binding post and negative binding post, and described positive binding post and negative binding post are exposed by described concave structure; The nearest position of layers of copper creepage distance of exposing of described positive layer busbar and/or negative layer busbar is provided with an arc notch.
2. stack bus bar according to claim 1, is characterized in that, the same position place of the horizontal component of the described concave structure in described upper insulation layer, middle part insulating barrier, lower insulation layer is provided with a U-shaped breach.
3. stack bus bar according to claim 1 and 2, is characterized in that, described positive binding post and negative connecting terminal are provided with the wiring copper packing for being connected with external circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520207657.5U CN204464687U (en) | 2015-04-08 | 2015-04-08 | A kind of stack bus bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520207657.5U CN204464687U (en) | 2015-04-08 | 2015-04-08 | A kind of stack bus bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204464687U true CN204464687U (en) | 2015-07-08 |
Family
ID=53671516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520207657.5U Expired - Fee Related CN204464687U (en) | 2015-04-08 | 2015-04-08 | A kind of stack bus bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204464687U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971992A (en) * | 2017-05-09 | 2017-07-21 | 中车株洲电力机车研究所有限公司 | A kind of half-bridge power semiconductor module |
| CN107069252A (en) * | 2016-11-30 | 2017-08-18 | 中国电子科技集团公司第二十七研究所 | A kind of bus-bar of the heavy-current discharge suitable for Electro-magnetic Launcher System |
| CN111033996A (en) * | 2017-09-28 | 2020-04-17 | 丹佛斯硅动力有限责任公司 | Busbar and power module |
| TWI831496B (en) * | 2022-12-01 | 2024-02-01 | 信通交通器材股份有限公司 | Power modules with decentralized staggered conductive busbars and low parasitic inductance |
-
2015
- 2015-04-08 CN CN201520207657.5U patent/CN204464687U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107069252A (en) * | 2016-11-30 | 2017-08-18 | 中国电子科技集团公司第二十七研究所 | A kind of bus-bar of the heavy-current discharge suitable for Electro-magnetic Launcher System |
| CN106971992A (en) * | 2017-05-09 | 2017-07-21 | 中车株洲电力机车研究所有限公司 | A kind of half-bridge power semiconductor module |
| CN111033996A (en) * | 2017-09-28 | 2020-04-17 | 丹佛斯硅动力有限责任公司 | Busbar and power module |
| CN111033996B (en) * | 2017-09-28 | 2023-03-14 | 丹佛斯硅动力有限责任公司 | Busbar and power module |
| US11616353B2 (en) | 2017-09-28 | 2023-03-28 | Danfoss Silicon Power Gmbh | Busbar and power module |
| TWI831496B (en) * | 2022-12-01 | 2024-02-01 | 信通交通器材股份有限公司 | Power modules with decentralized staggered conductive busbars and low parasitic inductance |
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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: 20150708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |