CN204315865U - A kind of laminated bus bar structure - Google Patents
A kind of laminated bus bar structure Download PDFInfo
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- CN204315865U CN204315865U CN201420841236.3U CN201420841236U CN204315865U CN 204315865 U CN204315865 U CN 204315865U CN 201420841236 U CN201420841236 U CN 201420841236U CN 204315865 U CN204315865 U CN 204315865U
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Abstract
The utility model discloses a kind of laminated bus bar structure, comprise middle adhesive linkage and represent the positive busbar of two-stage and negative busbar, positive busbar comprises positive plate and positive conducting terminal, negative busbar comprises negative plate and negative conducting terminal, positive plate offers positive master row insulating for coordinating with negative conducting terminal by hole, negative plate offers negative master row insulating for coordinating with positive conducting terminal by hole, positive master row insulating carries out edge sealing insulation by hole and negative master row insulating by being provided with dielectric film in the hole in hole, and the busbar after edge sealing insulation is combined as stack bus bar by middle adhesive linkage.The utility model has simple and compact for structure, easy assembling, effectively can increase the advantages such as creepage distance.
Description
Technical field
The utility model is mainly concerned with power component field, refers in particular to a kind of laminated bus bar structure being applicable to power component.
Background technology
Creepage distance refers between two conductive components, or a conductive component and equipment and easily between contact surface along the shortest space length of insulating material surface measurement, distance (i.e. leakage distance) along insulating surface electric discharge also claims creepage distance, is called for short creep distance, shown in Figure 1.The shortest creepage distance between conductor A and conductor F is: AB+BC+CD+DE+EF; Minimum slot width X, by different class of pollution regulation, is generally 1-4mm; If X≤1-4mm, can be directly creepage between conductor, the shortest creepage distance between conductor A and conductor F is: AF.
Stack bus bar is generally used for the installation of power model components and parts, the distance that the mounting terminal of components and parts is determined often, and therefore also needing between conducting terminal, carry out structural design increases creepage distance.As shown in Figures 2 and 3, in order to increase creepage distance 1 between conducting terminal, some high performance components self are provided with the isolation recesses 2 for increasing creepage distance.As shown in Figure 4 and Figure 5, the scheme of traditional increase creepage distance is mostly on stack bus bar, arrange insulation strip 3 increase creepage distance, namely between conducting terminal, arranges insulation strip 3, and creepage path between conducting terminal is changed.After adding insulation strip 3, the between conducting terminal second creepage path 105 obviously increases relative to not having first of insulation strip 3 the creepage path 104.
There is intrinsic shortcoming in aforesaid way: one, and product increases annex and certainly will increase cost, material cost, processing cost all can not be ignored.Its two, insulation strip 3 is difficult to be attached to stack bus bar.Insulation strip 3 is usually by tool locating, and adopt bonded adhesives bonding with stack bus bar surface insulation layer, because bonding plane is little, this bonding form reliability is not high, there is the risk come off; Also have in addition and insulation strip 3 is directly adopted surface insulation layer parcel and stack bus bar integral heat pressure, but this process mould requires higher, die cost is high; Moreover the insulation strip 3 on stack bus bar need coordinate with the isolation recesses 2 of power component, causes stack bus bar assembly difficulty large.
Utility model content
The technical problems to be solved in the utility model is just: the technical problem existed for prior art, the utility model provides a kind of assembling simple and compact for structure, easy, effectively can increase the laminated bus bar structure of creepage distance.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of laminated bus bar structure, comprise middle adhesive linkage and represent the positive busbar of two-stage and negative busbar, described positive busbar comprises positive plate and positive conducting terminal, described negative busbar comprises negative plate and negative conducting terminal, described positive plate offers positive master row insulating for coordinating with negative conducting terminal by hole, described negative plate offers negative master row insulating for coordinating with positive conducting terminal by hole, described positive master row insulating carries out edge sealing insulation by hole and negative master row insulating by being provided with dielectric film in the hole in hole, busbar after edge sealing insulation is combined as stack bus bar by described middle adhesive linkage.
As further improvement of the utility model: the shaping edge sealing direction of described dielectric film in hole is by interior along stack bus bar.
As further improvement of the utility model: described middle adhesive linkage is at two interpolars in hollowing out shape, and at the cavity allowing the superimposed place in hole define partition that insulate between described positive conducting terminal and negative conducting terminal, the distance of described cavity is greater than creepage minimum slot width.
Compared with prior art, the utility model has the advantage of:
1. laminated bus bar structure of the present utility model, can increase creepage distance, and this laminated bus bar structure, by innovative design, utilizes conducting terminal place insulating film structure to improve the creepage distance increased between conducting terminal.Compare to existing stack bus bar to increase creepage distance, insulation strip or dead ring etc. for increasing creepage distance is installed usually between conducting terminal, the utility model improves by means of only the shaping edge sealing structure of dielectric film increases creepage distance, structure is simple, with low cost, solve the problem of creep distance deficiency between terminal.
2. laminated bus bar structure of the present utility model, employing is the dielectric film edge sealing process of traditional stack bus bar routine, is just changed in edge sealing direction, intermediate insulating layer is hollowed out design simultaneously, and technique is simple, easily realizes.
3. laminated bus bar structure of the present utility model, do not increase any subsidiary structure, tradition increases the mode of the stack bus bar of creepage distance relatively, more cheap on cost, and there is not the risk that insulation strip comes off; And owing to not having insulation strip to give prominence to, busbar does not exist and power component interference problem, be easy to assembling.
4. laminated bus bar structure of the present utility model, allows superimposed place, hole there is cavity in insulation between conducting terminal, makes a conducting terminal part be in suspended state, can offset a part of alignment error, improve the reliability of electrical contact.
Accompanying drawing explanation
Fig. 1 is the principle schematic of creepage distance.
Fig. 2 is the main TV structure principle schematic of conventional IGBT components and parts.
Fig. 3 is the side-looking structural principle schematic diagram of conventional IGBT components and parts.
Fig. 4 is the schematic diagram of creepage distance on conventional I GBT components and parts.
Fig. 5 is the schematic diagram of creepage distance on the IGBT components and parts after adopting tradition to increase creepage distance.
Fig. 6 is the schematic diagram of stereo decomposing structure of the present utility model.
Fig. 7 is the utility model structural principle schematic diagram after mounting.
Marginal data:
1, creepage distance; 2, isolation recesses; 3, insulation strip; 4, positive plate; 5, positive conducting terminal; 6, the first positive insulating barrier; 7, the second positive insulating barrier; 8, negative plate; 9, negative conducting terminal; 10, the first negative insulating barrier; 11, the second negative insulating barrier; 12, middle adhesive linkage; 101, negative master row insulating is by hole; 102, positive master row insulating is by hole; 103, cavity; 104, the first creepage path; 105, the second creepage path.
Embodiment
Below with reference to Figure of description and specific embodiment, the utility model is described in further details.
As shown in Figure 6 and Figure 7, laminated bus bar structure of the present utility model, comprise middle adhesive linkage 12 and represent the positive busbar of two-stage and negative busbar, positive busbar, negative busbar all adopt hot pressing dielectric film form to edge sealing insulation in hole, and the busbar after edge sealing insulation is combined as stack bus bar by middle adhesive linkage 12.Wherein, positive busbar comprises positive plate 4, the positive positive insulating barrier of conducting terminal 5, first 6 and the second positive insulating barrier 7, and negative busbar comprises negative plate 8, negative conducting terminal 9, first negative insulating barrier 10 and the second negative insulating barrier 11.Positive plate 4 offering positive master row insulating for coordinating with negative conducting terminal 9 by hole 102, negative plate 8 offering negative master row insulating for coordinating with positive conducting terminal 5 by hole 101, being provided with dielectric film in hole, namely adopting the shaping edge sealing insulation mode of dielectric film.In preferred embodiment, the shaping edge sealing direction of dielectric film in hole is by interior along stack bus bar.Positive conducting terminal 5 through negative master row insulating by hole 101, negative conducting terminal 9 through positive master row insulating by hole 102, negative master row insulating by hole 101 and positive master row insulating by the hole in hole 102 to dielectric film shaping edge sealing insulation from inside to outside.
In the present embodiment, middle adhesive linkage 12 adopts at two interpolars and hollows out design, at the cavity 103 allowing the superimposed place in hole define partition that insulate between so positive conducting terminal 5 and negative conducting terminal 9, its distance should be greater than creepage minimum slot width X, that is: positive and negative insulating barrier spacing is made to be greater than creepage minimum slot width X, block the creepage path along surface insulation layer in two interpolar air line distances, effectively increase the creepage distance of two interpolars.The middle adhesive linkage of stack bus bar adopts perforate design at two interpolars, and shape is not limit.
As from the foregoing, the utility model is improved by dielectric film edge sealing structure to increase creepage distance, and do not increase any subsidiary structure, tradition increases the mode of the stack bus bar of creepage distance relatively, more cheap on cost, and there is not the risk that insulation strip comes off.Busbar adopts the dielectric film edge sealing process of traditional stack bus bar, is just changed in edge sealing direction, intermediate insulating layer is hollowed out design simultaneously, and technique is simple, easily realizes; Do not have insulation strip to give prominence to, busbar does not exist and power component interference problem, be easy to assembling; Allow superimposed place, hole there is cavity 103 in insulation between conducting terminal, make a conducting terminal part unsettled, thus possess certain elasticity, a part of alignment error can be offset, substantially increase electrical contact reliability.
Below be only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, not departing from the some improvements and modifications under the utility model principle prerequisite, protection range of the present utility model should be considered as.
Claims (3)
1. a laminated bus bar structure, it is characterized in that, comprise middle adhesive linkage (12) and represent the positive busbar of two-stage and negative busbar, described positive busbar comprises positive plate (4) and positive conducting terminal (5), described negative busbar comprises negative plate (8) and negative conducting terminal (9), described positive plate (4) offers positive master row insulating for coordinating with negative conducting terminal (9) by hole (102), described negative plate (8) offers negative master row insulating for coordinating with positive conducting terminal (5) by hole (101), described positive master row insulating carries out edge sealing insulation by being provided with dielectric film in hole (102) and the hole of negative master row insulating by hole (101), busbar after edge sealing insulation is combined as stack bus bar by described middle adhesive linkage (12).
2. laminated bus bar structure according to claim 1, it is characterized in that, the shaping edge sealing direction of described dielectric film in hole is by interior along stack bus bar.
3. laminated bus bar structure according to claim 1 or 2, it is characterized in that, described middle adhesive linkage (12) at two interpolars in hollowing out shape, at the cavity (103) allowing the superimposed place in hole define partition that insulate between described positive conducting terminal (5) and negative conducting terminal (9), the distance of described cavity (103) is greater than creepage minimum slot width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420841236.3U CN204315865U (en) | 2014-12-27 | 2014-12-27 | A kind of laminated bus bar structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420841236.3U CN204315865U (en) | 2014-12-27 | 2014-12-27 | A kind of laminated bus bar structure |
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| Publication Number | Publication Date |
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| CN204315865U true CN204315865U (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420841236.3U Active CN204315865U (en) | 2014-12-27 | 2014-12-27 | A kind of laminated bus bar structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909611A (en) * | 2021-01-19 | 2021-06-04 | 顺科智连技术股份有限公司 | Female arranging of grafting |
| CN113097769A (en) * | 2021-03-23 | 2021-07-09 | 华中科技大学 | High-voltage coaxial laminated hybrid busbar |
| EP4117095A1 (en) * | 2021-07-07 | 2023-01-11 | Aptiv Technologies Limited | Insulated connection system for busbars |
-
2014
- 2014-12-27 CN CN201420841236.3U patent/CN204315865U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112909611A (en) * | 2021-01-19 | 2021-06-04 | 顺科智连技术股份有限公司 | Female arranging of grafting |
| CN113097769A (en) * | 2021-03-23 | 2021-07-09 | 华中科技大学 | High-voltage coaxial laminated hybrid busbar |
| EP4117095A1 (en) * | 2021-07-07 | 2023-01-11 | Aptiv Technologies Limited | Insulated connection system for busbars |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee after: ZHUZHOU CRRC TIMES ELECTRIC Co.,Ltd. Address before: The age of 412001 in Hunan Province, Zhuzhou Shifeng District Road No. 169 Patentee before: ZHUZH CSR TIMES ELECTRIC Co.,Ltd. |