CN103715524A - Simple method and connection structure for preventing resistance increase due to contact of copper hard busbar and aluminum hard busbar - Google Patents
Simple method and connection structure for preventing resistance increase due to contact of copper hard busbar and aluminum hard busbar Download PDFInfo
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- CN103715524A CN103715524A CN201310114662.7A CN201310114662A CN103715524A CN 103715524 A CN103715524 A CN 103715524A CN 201310114662 A CN201310114662 A CN 201310114662A CN 103715524 A CN103715524 A CN 103715524A
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- copper
- hard bus
- foil paper
- copper foil
- aluminium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/304—Clamped connections, spring connections utilising a screw or nut clamping member having means for improving contact
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Abstract
The invention discloses a simple method and connection structure for preventing a resistance increase due to contact of a copper hard busbar and an aluminum hard busbar. The method comprises the following steps: putting a piece of tin coating copper foil paper between the copper hard busbar and the aluminum hard busbar, and then clamping tight the tin coating copper foil paper between the copper hard busbar and the aluminum hard busbar through a fastening member, the clamping force being 5 to 10 MPa. The structure is as follows: the piece of tin coating copper foil paper 3 is disposed between the copper hard busbar 1 and the aluminum hard busbar 2; three groups of fastening holes are arranged in the copper hard busbar, the aluminum hard busbar and the piece of tin coating copper foil paper respectively; and each bolt is disposed in each fastening hole, one end of each bolt being provided with a nut 5. According to the invention, a piece of cheap copper foil paper is adopted, and after being coated with a layer of soldering tin, replaces a conventional copper-aluminum transition plate to serve as a connecting transition body between the copper hard busbar and the aluminum hard busbar so that connection cost is greatly reduced. Besides, the weight is light, the connecting operation is quite convenient, and the conventional technical problems of increased resistance and severe heating in case of connection of the copper hard busbar and the aluminum hard busbar can be well solved.
Description
Technical field
the present invention relates to a kind of simple and easy method and syndeton that prevents that the hard bus contact resistance of copper aluminium from increasing, belong to copper aluminium conduction interconnection technique field.
Background technology
because copper, aluminium busbar all can form layer of oxide layer on its surface at normal temperatures, if two kinds of conductors directly connect, at air, there will be electrochemical reaction phenomenon when moist and cause contact-making surface contact resistance to increase, thereby cause tie point heating, especially in the larger situation by electric current, long-time heating causes heating to worsen, and affects normal power supply.For overcoming the above problems, conventionally with copper to aluminum adapter bar, connect, prevent from connecting heating.But copper to aluminum adapter bar existence is more thick and heavy, price is higher, and the problem of attended operation inconvenience.
Summary of the invention
the object of the invention is to, the simple and easy method and the syndeton that prevent that the hard bus contact resistance of copper aluminium from increasing are provided, while connecting with solution copper, aluminium busbar by a kind of straightforward procedure cheaply, because electrochemical corrosion causes junction resistance, increase fever phenomenon.
technical scheme of the present invention:
prevent the simple and easy method that the hard bus contact resistance of copper aluminium increases, the method is between the hard bus of copper and the hard bus of aluminium, to pad one to ward off tin Copper Foil paper, then by securing member, will ward off tin Copper Foil paper being clipped between the hard bus of copper and the hard bus of aluminium tightly, clamping pressure is 5～10MPa.
in preceding method, the hard bus of described copper and the hard bus of aluminium and the 0# sand paper polishing for contact-making surface of warding off tin Copper Foil paper, remove oxide layer, and be coated with last layer conductive paste or electric force compounded grease, anti-oxidation.
in preceding method, described in to ward off tin Copper Foil paper be that Copper Foil paper is immersed taken out afterwards in the scolding tin of thawing 30 seconds completely, make scolding tin be evenly distributed on Copper Foil paper surface and form.
in preceding method, described securing member adopts bolt, nut set and is equipped with plain washer and spring pad will be warded off tin Copper Foil paper being clipped between the hard bus of copper and the hard bus of aluminium tightly, and it is fastening that nut passes through to determine torque wrench.
the syndeton that prevents the hard bus contact resistance increase of copper aluminium forming by preceding method, comprises the hard bus of copper and the hard bus of aluminium, between the hard bus of copper and the hard bus of aluminium, is provided with and wards off tin Copper Foil paper; The hard bus of copper, the hard bus of aluminium and ward off on tin Copper Foil paper and be respectively equipped with one group of fastener hole, be provided with bolt in fastener hole, bolt one end is provided with nut.
in aforementioned syndeton, the hard bus of described copper and the hard bus of aluminium are provided with one deck conductive paste or electric force compounded grease with the contact-making surface of warding off tin Copper Foil paper.
in aforementioned syndeton, described in ward off tin Copper Foil paper shape corresponding with the faying surface of the hard bus of copper and the hard bus of aluminium with size, ward off tin Copper Foil paper and tighten that the size in hole is big or small with fastener hole on the hard bus of position and copper and the hard bus of aluminium and position is corresponding.
in aforementioned syndeton, described bolt two ends are respectively equipped with plain washer, and plain washer is positioned at the hard bus of copper or hard bus one side of aluminium.
in aforementioned syndeton, between described plain washer and nut, be provided with spring pad.
in aforementioned syndeton, described in to ward off tin Copper Foil paper be on Copper Foil paper surface, to soak one deck scolding tin to form.
compared with prior art, the present invention adopts price to be about the Copper Foil paper of existing copper to aluminum adapter bar price 1/50, after one deck scolding tin is warded off on Copper Foil paper surface, replace copper to aluminum adapter bar as the hard bus of copper the transition body that is connected with the hard bus of aluminium.Reduced greatly link cost.Owing to warding off, tin Copper Foil paper is very thin, and weight is also very light, and attended operation is quite convenient.Be proven the method and can replace copper to aluminum adapter bar completely, while connecting to solve copper, aluminium busbar, because electrochemical corrosion causes copper, aluminium busbar junction resistance, increase the serious technical problem of generating heat.
Accompanying drawing explanation
fig. 1 is plane structure chart of the present invention;
fig. 2 is plane decomposition chart of the present invention;
fig. 3 is tomograph of the present invention;
fig. 4 is three-dimensional exploded structure chart of the present invention.
being labeled as in figure: the hard bus of 1-copper, the hard bus of 2-aluminium, 3-ward off tin Copper Foil paper, 4-bolt, 5-nut, 6-plain washer, 7-spring pad, 8-fastener hole, 9-conductive paste or electric force compounded grease.
Embodiment
below in conjunction with accompanying drawing, the present invention is described in further detail, but not as any limitation of the invention.
prevent the simple and easy method that the hard bus contact resistance of copper aluminium increases, as shown in Fig. 1～4, the method is between the hard bus 1 of copper and the hard bus 2 of aluminium, to pad one to ward off tin Copper Foil paper 3, ward off tin Copper Foil paper and be Copper Foil paper is immersed completely in the scolding tin of thawing and taken out afterwards for 30 seconds, make scolding tin be evenly distributed on Copper Foil paper surface and form.The hard bus 2 of the hard bus 1 of copper and aluminium and the 0# sand paper polishing for contact-making surface of warding off tin Copper Foil paper 3, remove oxide layer, and be coated with last layer conductive paste or electric force compounded grease 9, anti-oxidation.Then by securing member, tin Copper Foil paper being clipped between the hard bus of copper and the hard bus of aluminium tightly will be warded off, securing member adopts bolt 4, nut 5 external members and is equipped with plain washer 6 and spring pad 7 will be warded off tin Copper Foil paper 3 being clipped between the hard bus 1 of copper and the hard bus 2 of aluminium tightly, nut 5 is fastening by passing through to determine torque wrench, and clamping pressure is 5～10MPa.
the syndeton that prevents the hard bus contact resistance increase of copper aluminium forming as stated above, as shown in Fig. 1～4, comprises the hard bus 1 of copper and the hard bus 2 of aluminium, between the hard bus 1 of copper and the hard bus 2 of aluminium, is provided with and wards off tin Copper Foil paper 3; Warding off tin Copper Foil paper 3 is on Copper Foil paper surface, to soak one deck scolding tin to form.The hard bus 1 of copper, the hard bus 2 of aluminium and ward off on tin Copper Foil paper 3 and be respectively equipped with one group of fastener hole 8, be provided with bolt 4 in fastener hole 8, bolt 4 one end are provided with nut 5.The hard bus 2 of the hard bus 1 of described copper and aluminium is provided with one deck conductive paste or electric force compounded grease 9 with the contact-making surface of warding off tin Copper Foil paper 3.Described shape of warding off tin Copper Foil paper 3 is corresponding with the faying surface of the hard bus 1 of copper and the hard bus 2 of aluminium with size, wards off tin Copper Foil paper 3 and tightens that the size in hole 8 is big or small with fastener hole 8 on the hard bus 1 of position and copper and the hard bus 2 of aluminium and position is corresponding.Described bolt 4 two ends are respectively equipped with plain washer 6, and plain washer 6 is positioned at the hard bus 1 of copper or hard bus 2 one sides of aluminium.Between described plain washer 6 and nut 5, be provided with spring pad 7.
Embodiment
during concrete enforcement, as shown in Figure 4, first according to the joint face of the hard bus 1 of copper and the hard bus 2 of aluminium, with Copper Foil paper, cut a Copper Foil paper corresponding with the hard bus 1 of copper and the hard bus 2 joint face size and shapes of aluminium; Then the Copper Foil paper shearing is immersed completely and take out afterwards in the scolding tin of thawing 30 seconds, make scolding tin be evenly distributed on Copper Foil paper surface and form and ward off tin Copper Foil paper 3; Fastener hole 8 positions and the size of the contrast hard bus 1 of copper and the hard bus 2 of aluminium, open fastener hole 8 warding off on tin Copper Foil paper 3; By the hard bus 1 of copper and the hard 0# sand paper polishing for bus 2 joint faces of aluminium, remove oxide layer, and coat thin layer conductive paste or electric force compounded grease 9, anti-oxidation; To ward off tin Copper Foil paper 3 is clipped in the middle of the hard bus 1 of copper and hard bus 2 joint faces of aluminium, then first on bolt 4, overlap a plain washer 6, bolt 4 is applied in to the hard bus 1 of copper, wards off in the fastener hole 8 on tin Copper Foil paper 3 and the hard bus 2 of aluminium, at the traversing through end of bolt 4, put again a plain washer 6 and spring pad 7 is spun on nut 5 on bolt 4 again.According to said method 4 nuts 5 in Fig. 4 are all spun on bolt 4.Then with determining torque wrench, nut 5 is tightened, the fastening pressure of nut 5 is remained between 5～10MPa.
Claims (10)
1. a simple and easy method that prevents that the hard bus contact resistance of copper aluminium from increasing, it is characterized in that: the method is between the hard bus of copper and the hard bus of aluminium, to pad one to ward off tin Copper Foil paper, then by securing member, will ward off tin Copper Foil paper being clipped between the hard bus of copper and the hard bus of aluminium tightly, clamping pressure is 5～10MPa.
2. method according to claim 1, is characterized in that: the hard bus of described copper and the hard bus of aluminium with the contact-making surface of warding off tin Copper Foil paper with 0
#sand paper polishing, removes oxide layer, and is coated with last layer conductive paste or electric force compounded grease, anti-oxidation.
3. method according to claim 1, is characterized in that: described in to ward off tin Copper Foil paper be that Copper Foil paper is immersed completely in the scolding tin of thawing and taken out afterwards for 30 seconds, make scolding tin be evenly distributed on Copper Foil paper surface and form.
4. method according to claim 1, is characterized in that: described securing member adopts bolt, nut set and is equipped with plain washer and spring pad will be warded off tin Copper Foil paper being clipped between the hard bus of copper and the hard bus of aluminium tightly, and it is fastening that nut passes through to determine torque wrench.
One kind by method described in the arbitrary claim of claim 1～4, form prevent the syndeton that the hard bus contact resistance of copper aluminium increases, comprise the hard bus of copper (1) and the hard bus of aluminium (2), it is characterized in that: between the hard bus of copper (1) and the hard bus of aluminium (2), be provided with and ward off tin Copper Foil paper (3); The hard bus of copper (1), the hard bus of aluminium (2) and ward off on tin Copper Foil paper (3) and be respectively equipped with one group of fastener hole (8), be provided with bolt (4) in fastener hole (8), bolt (4) one end is provided with nut (5).
6. syndeton according to claim 5, is characterized in that: the hard bus of described copper (1) and the hard bus of aluminium (2) are provided with one deck conductive paste or electric force compounded grease (9) with the contact-making surface of warding off tin Copper Foil paper (3).
7. syndeton according to claim 5, it is characterized in that: described in ward off tin Copper Foil paper (3) shape corresponding with the faying surface of the hard bus of copper (1) and the hard bus of aluminium (2) with size, ward off tin Copper Foil paper (3) and tighten that the size in hole (8) is big or small with fastener hole (8) on the hard bus of position and copper (1) and the hard bus of aluminium (2) and position is corresponding.
8. syndeton according to claim 5, is characterized in that: described bolt (4) two ends are respectively equipped with plain washer (6), and plain washer (6) is positioned at the hard bus of copper (1) or hard bus (2) one sides of aluminium.
9. syndeton according to claim 8, is characterized in that: between described plain washer (6) and nut (5), be provided with spring pad (7).
10. syndeton according to claim 5, is characterized in that: described in to ward off tin Copper Foil paper (3) be on Copper Foil paper surface, to soak one deck scolding tin to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310114662.7A CN103715524A (en) | 2013-04-03 | 2013-04-03 | Simple method and connection structure for preventing resistance increase due to contact of copper hard busbar and aluminum hard busbar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310114662.7A CN103715524A (en) | 2013-04-03 | 2013-04-03 | Simple method and connection structure for preventing resistance increase due to contact of copper hard busbar and aluminum hard busbar |
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| CN103715524A true CN103715524A (en) | 2014-04-09 |
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| CN201310114662.7A Pending CN103715524A (en) | 2013-04-03 | 2013-04-03 | Simple method and connection structure for preventing resistance increase due to contact of copper hard busbar and aluminum hard busbar |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002543A (en) * | 2015-08-11 | 2015-10-28 | 力尔铝业股份有限公司 | Connecting structure and connecting method of aluminum profile positive pole oxidizing electrode electric conducting busbars |
| CN106410436A (en) * | 2016-12-05 | 2017-02-15 | 国家电网公司 | Heterotypic pad for connection between multi-strand aluminum lead and electric equipment |
| CN107755877A (en) * | 2017-11-23 | 2018-03-06 | 国网河南省电力公司孟州市供电公司 | A kind of high-voltage line arranges connector connecting method |
| WO2019101588A1 (en) * | 2017-11-24 | 2019-05-31 | Siemens Aktiengesellschaft | Electrical contacting interface having a low and stable electrical transition resistance |
| CN112186372A (en) * | 2020-09-23 | 2021-01-05 | 张金凤 | Internal connection type copper-aluminum transition sleeve and use method thereof |
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| CN1929205A (en) * | 2006-09-14 | 2007-03-14 | 中国科学院等离子体物理研究所 | Method for reducing contact resistance by connection of copper plate and aluminum plate |
| CN102394388A (en) * | 2011-07-15 | 2012-03-28 | 山东达驰电气有限公司 | Method for treating coupling contact surface of copper conductor and aluminium conductor |
| CN102723625A (en) * | 2012-07-07 | 2012-10-10 | 河南省电力公司周口供电公司 | Copper aluminium wire transition crimping clamp |
| CN102760516A (en) * | 2012-07-05 | 2012-10-31 | 中国石油天然气股份有限公司 | Application and manufacturing method of copper-aluminum transition composite connecting strip and multi-stage composite connecting strip |
| CN203180097U (en) * | 2013-04-03 | 2013-09-04 | 南方汇通股份有限公司 | Structure for connecting hard copper bus bar and hard aluminum bus bar |
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2013
- 2013-04-03 CN CN201310114662.7A patent/CN103715524A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1929205A (en) * | 2006-09-14 | 2007-03-14 | 中国科学院等离子体物理研究所 | Method for reducing contact resistance by connection of copper plate and aluminum plate |
| CN102394388A (en) * | 2011-07-15 | 2012-03-28 | 山东达驰电气有限公司 | Method for treating coupling contact surface of copper conductor and aluminium conductor |
| CN102760516A (en) * | 2012-07-05 | 2012-10-31 | 中国石油天然气股份有限公司 | Application and manufacturing method of copper-aluminum transition composite connecting strip and multi-stage composite connecting strip |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105002543A (en) * | 2015-08-11 | 2015-10-28 | 力尔铝业股份有限公司 | Connecting structure and connecting method of aluminum profile positive pole oxidizing electrode electric conducting busbars |
| CN105002543B (en) * | 2015-08-11 | 2017-12-26 | 力尔铝业股份有限公司 | A kind of attachment structure of oxidation aluminium electrodes conduct bus and connection method |
| CN106410436A (en) * | 2016-12-05 | 2017-02-15 | 国家电网公司 | Heterotypic pad for connection between multi-strand aluminum lead and electric equipment |
| CN107755877A (en) * | 2017-11-23 | 2018-03-06 | 国网河南省电力公司孟州市供电公司 | A kind of high-voltage line arranges connector connecting method |
| WO2019101588A1 (en) * | 2017-11-24 | 2019-05-31 | Siemens Aktiengesellschaft | Electrical contacting interface having a low and stable electrical transition resistance |
| CN111373605A (en) * | 2017-11-24 | 2020-07-03 | 西门子股份公司 | Electrical contact interface with small and stable transition resistance |
| US11444391B2 (en) | 2017-11-24 | 2022-09-13 | Siemens Aktiengesellschaft | Electrical contacting interface with a low and stable electrical transfer resistance |
| CN112186372A (en) * | 2020-09-23 | 2021-01-05 | 张金凤 | Internal connection type copper-aluminum transition sleeve and use method thereof |
| CN112186372B (en) * | 2020-09-23 | 2021-12-17 | 惠民县天阳金属材料有限公司 | Internal connection type copper-aluminum transition sleeve and use method thereof |
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Effective date of registration: 20150317 Address after: 550000 Guizhou Province, Guiyang national hi tech Industrial Development Zone Technology Park Nature Park chauvinism Applicant after: South car Kweiyang vehicle Co., Ltd Address before: Baiyun District of Guizhou province 550017 Abdullah camp in Guiyang City Applicant before: Nanfang Huitong Co., Ltd. |