CN103915136A - High-voltage hot compress busbar - Google Patents
High-voltage hot compress busbar Download PDFInfo
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- CN103915136A CN103915136A CN201310005552.7A CN201310005552A CN103915136A CN 103915136 A CN103915136 A CN 103915136A CN 201310005552 A CN201310005552 A CN 201310005552A CN 103915136 A CN103915136 A CN 103915136A
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- busbar
- hot compress
- high pressure
- pressure hot
- insulating barrier
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Abstract
The invention provides a high-voltage hot compress busbar which comprises a busbar body used for being connected with devices in a circuit to enable the devices to be connected. An insulation layer formed by solidifying thermosetting insulation powder covers the surface of the busbar body. The insulation layer is used for enabling the busbar body to be separated from the outside, and the thickness of the insulation layer is larger than or equal to a preset thickness. According to the high-voltage hot compress busbar, the insulation layer formed by solidifying the thermosetting insulation powder covers the surface of the busbar body, so that the busbar body is separated from the outside, the insulation layer is high temperature resistant, good in safety, and high in bonding strength and compactness with the busbar body, insulation reliability is guaranteed, the thickness of the insulation layer is larger than or equal to a preset thickness, and therefore the busbar can bear insulation and voltage resistance up to tens of thousands of volts.
Description
Technical field
The present invention relates to electronic technology, relate in particular to a kind of high pressure hot compress busbar.
Background technology
In electrical system, between the each device of turning circuit, conventionally adopt busbar to connect, but the stray inductance of common busbar (for example naked copper row or naked aluminium row) is larger, if be applied in power cell, in main circuit switch process, for example, on device for power switching (insulated gate bipolar transistor), can produce higher due to voltage spikes, device for power switching is produced to certain impact, affect the life-span of device for power switching, thereby reduce the reliability of power cell.
In prior art, in order to overcome the larger problem of common busbar stray inductance, normally put heat-shrink tube on common busbar surface.
But there is following defect in prior art: heat-shrink tube is thermoplastic, and temperature resistant grade is lower, the easily distortion of being heated, insulating reliability is poor, and at high temperature easily burns, and has potential safety hazard.
Summary of the invention
The invention provides a kind of high pressure hot compress busbar, poor in order to solve the insulating reliability existing in prior art, there is the problem of potential safety hazard.
The invention provides a kind of high pressure hot compress busbar, comprising:
For connecting the busbar of the each device of turning circuit;
The insulating barrier that described busbar surface coverage heat cured insulation powder curing forms, described insulating barrier is used for making described busbar and external insulation, and the thickness of described insulating barrier is greater than or equal to setting thickness.
High pressure hot compress busbar provided by the invention, by the insulating barrier forming at busbar surface coverage heat cured insulation powder curing, make busbar and external insulation, this insulating barrier is high temperature resistant, fail safe is good, and strong with bonding force, the compactness of busbar, has ensured the reliability of insulation, the thickness of this insulating barrier is greater than or equal to setting thickness, makes busbar can bear the dielectric voltage withstand up to volts up to ten thousand.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of high pressure hot compress busbar provided by the invention.
Embodiment
Below by specific embodiment and accompanying drawing, technical scheme of the present invention is described in further detail.
Fig. 1 is the structural representation of an embodiment of high pressure hot compress busbar provided by the invention.As shown in Figure 1, this high pressure hot compress busbar comprises: for connecting the busbar 11 of the each device of turning circuit;
The insulating barrier 12 that busbar 11 surface coverage heat cured insulation powder curings form, insulating barrier 12 is for making busbar 11 and external insulation, and the thickness of insulating barrier is greater than or equal to setting thickness.
Concrete, this heat cured insulation powder can be 100% thermosets, and thermosets has excellent electrical insulating property, impact resistance and abrasion resistance, and adhesive force is good, high temperature resistant, and the temperature range that can bear can reach between-30 DEG C ~ 180 DEG C.Described setting thickness can be 1.5mm.Optionally, insulating barrier 12 can be formed by static molding powder hot setting, and the heat cured insulation powder that forms insulating barrier 12 can be static molding powder.
This heat cured insulation powder can adopt the techniques such as spraying (such as electrostatic spraying) to cover the surface of busbar 11, concrete, the whole surface of busbar 11 all can be covered to insulating powder, or, can also except with turning circuit in busbar 11 surface coverage insulating powders the junction of each device, can cover insulating powder at the portion other than connected portion on busbar 11 surfaces.And then this heat cured insulation powder is carried out to hot setting, insulating powder can produce cross-linking reaction and busbar 11 generates certain chemical bond, can fuse into one with busbar 11.
The thickness of the heat cured insulation powder covering can spray according to the actual requirements, for example: can be according to the voltage strength in busbar 11 environments for use, be 1.5mm by the thickness spraying of the heat cured insulation powder covering, make busbar can meet the requirement of withstand voltage of 12kV, can be under 12kV, to realize 1 minute not flashover or puncture at insulation voltage, therefore be convenient to superpose with the less distance in interval between high pressure hot compress busbar, can save more than 30% space, greatly save installing space, avoid the waste in space, dwindled the volume of whole product.
The high pressure hot compress busbar that the present embodiment provides, because the heat cured insulation powder that forms insulating barrier 12 has resistant to elevated temperatures feature, so fail safe is good, and to be different between heat-shrink tube and busbar 11 be that simple physical bond (is subject to thermal contraction, easily distortion), heat cured insulation powder is through hot setting, meeting produces cross-linking reaction and busbar 11 generates certain chemical bond, fuse into one with busbar 11, between insulating barrier 12 and busbar 11, has no gap, bonding force and compactness are strong, ensure the reliability of insulation, thereby reduce the stray inductance of busbar 11, in contactor process, can for example, at the higher due to voltage spikes of the upper generation of switching device (insulated gate bipolar transistor), avoid switching device to produce and impact, and on the switch impact of device lifetime, thickness of insulating layer is greater than or equal to sets thickness (1.5mm), make busbar 11 can bear the dielectric voltage withstand (12kV) up to volts up to ten thousand, conveniently be applied in high tension loop, be convenient to superpose with the less distance in interval between busbar 11 simultaneously, not only improve space availability ratio, and further reduced the stray inductance in whole loop.
The high pressure hot compress busbar that the present embodiment provides, because the thickness of insulating barrier is greater than or equal to setting thickness, therefore can be applied in hyperbaric environment, for example, in train auxiliary electrical system, be specifically as follows in power cell of train auxiliary electrical system etc.
Optionally, the busbar 11 in embodiment illustrated in fig. 1 can comprise: naked metal row.Optionally, naked metal row can arrange for naked copper row or naked aluminium.Naked metal row surface can cover coating, and this coating is used for preventing that naked metal row surface is corroded, and can cover the junction of each device in naked metal row surface and turning circuit.Optionally, the coating of naked metal row surface coverage can be tin coating or nickel coating, can first naked metal row be carried out to pickling, in the aqueous solution by naked metal row immersion sulfuric acid etc., arranges the films such as surperficial oxide and then zinc-plated or nickel plating to remove naked metal.Concrete, the occasion that can use according to busbar 11, is chosen in naked metal row's plating nickel on surface or zinc-plated to prevent that naked metal row surface is corroded.For example: after naked metal row plating nickel on surface, be operated in atmosphere and alkali lye, chemical stability is good, not easy to change, more than 600 degrees Celsius could be oxidized, be easy to polishing, surface-brightening.And after naked metal row electroplating surfaces with tin, because heat conduction, the electric conductivity of tin are good, therefore, can reduce the contact resistance of the junction of each device in busbar 11 and turning circuit, reduce the amplitude that temperature raises; And tin is comparatively soft easily to extend, welding performance is good, can prevent scratch, and anti-electromagnetic interference is strong, and chemical stability is higher, in the weak solution of sulfuric acid, nitric acid, hydrochloric acid, dissolves hardly.
Finally it should be noted that: above each embodiment, only in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (6)
1. a high pressure hot compress busbar, is characterized in that, comprising: for connecting the busbar of the each device of turning circuit;
The insulating barrier that described busbar surface coverage heat cured insulation powder curing forms, described insulating barrier is used for making described busbar and external insulation, and the thickness of described insulating barrier is greater than or equal to setting thickness.
2. high pressure hot compress busbar according to claim 1, is characterized in that, described busbar comprises: naked metal row, and described naked metal row surface coverage coating, described coating is used for preventing that described naked metal row surface is corroded.
3. high pressure hot compress busbar according to claim 2, is characterized in that, in described naked metal row surface and described turning circuit, the junction of each device covers described coating.
4. according to the high pressure hot compress busbar described in claim 2 or 3, it is characterized in that, described coating is tin coating or nickel coating.
5. according to the high pressure hot compress busbar described in claim 2 or 3, it is characterized in that, described naked metal row is naked copper row or naked aluminium row.
6. according to the high pressure hot compress busbar described in claim 1-3 any one, it is characterized in that, described insulating barrier is formed by static molding powder hot setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310005552.7A CN103915136B (en) | 2013-01-07 | 2013-01-07 | High pressure hot compress busbar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310005552.7A CN103915136B (en) | 2013-01-07 | 2013-01-07 | High pressure hot compress busbar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103915136A true CN103915136A (en) | 2014-07-09 |
| CN103915136B CN103915136B (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310005552.7A Active CN103915136B (en) | 2013-01-07 | 2013-01-07 | High pressure hot compress busbar |
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| Country | Link |
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| CN (1) | CN103915136B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148052A (en) * | 2018-08-23 | 2019-01-04 | 江苏森蓝智能系统有限公司 | A kind of copper bar vulcanization production technology |
| CN110391511A (en) * | 2019-07-15 | 2019-10-29 | 嘉兴嘉一电源科技有限公司 | A kind of composite bus bar |
| CN111009805A (en) * | 2018-10-08 | 2020-04-14 | 安波福技术有限公司 | Method of manufacturing an electrical wiring assembly and electrical wiring assembly manufactured by said method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063019A (en) * | 2017-12-26 | 2018-05-22 | 上海振大电器成套有限公司 | A kind of master row insulating layer manufacturing method thereof |
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| CN101105990A (en) * | 2007-05-31 | 2008-01-16 | 江苏南自通华母线有限公司 | Bus conductor surface insulation layer production method |
| CN201036072Y (en) * | 2007-05-31 | 2008-03-12 | 江苏南自通华母线有限公司 | Bus conductor with epoxy resin powder spraying insulation layer |
| CN201504171U (en) * | 2009-09-22 | 2010-06-09 | 永济新时速电机电器有限责任公司 | Novel thermal coating laminated composite bus bar |
| CN102290156A (en) * | 2011-06-16 | 2011-12-21 | 宁波科鑫腐蚀控制工程有限公司 | Insulating corrosion prevention method for conductive copper bar |
-
2013
- 2013-01-07 CN CN201310005552.7A patent/CN103915136B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101105990A (en) * | 2007-05-31 | 2008-01-16 | 江苏南自通华母线有限公司 | Bus conductor surface insulation layer production method |
| CN201036072Y (en) * | 2007-05-31 | 2008-03-12 | 江苏南自通华母线有限公司 | Bus conductor with epoxy resin powder spraying insulation layer |
| CN201504171U (en) * | 2009-09-22 | 2010-06-09 | 永济新时速电机电器有限责任公司 | Novel thermal coating laminated composite bus bar |
| CN102290156A (en) * | 2011-06-16 | 2011-12-21 | 宁波科鑫腐蚀控制工程有限公司 | Insulating corrosion prevention method for conductive copper bar |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109148052A (en) * | 2018-08-23 | 2019-01-04 | 江苏森蓝智能系统有限公司 | A kind of copper bar vulcanization production technology |
| CN111009805A (en) * | 2018-10-08 | 2020-04-14 | 安波福技术有限公司 | Method of manufacturing an electrical wiring assembly and electrical wiring assembly manufactured by said method |
| CN110391511A (en) * | 2019-07-15 | 2019-10-29 | 嘉兴嘉一电源科技有限公司 | A kind of composite bus bar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103915136B (en) | 2016-09-21 |
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Address after: 044502 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044502 Shanxi city of Yuncheng province Yongji City Motor Street No. 18 Patentee before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |
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