CN206628610U - A kind of aluminum cold end terminal and copper bar transition connection component - Google Patents
A kind of aluminum cold end terminal and copper bar transition connection component Download PDFInfo
- Publication number
- CN206628610U CN206628610U CN201720295118.0U CN201720295118U CN206628610U CN 206628610 U CN206628610 U CN 206628610U CN 201720295118 U CN201720295118 U CN 201720295118U CN 206628610 U CN206628610 U CN 206628610U
- Authority
- CN
- China
- Prior art keywords
- cold end
- end terminal
- copper bar
- conducting strip
- aluminum cold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of aluminum cold end terminal and copper bar transition connection component, it is fixedly connected between aluminum cold end terminal (1) and copper bar (3) by tin conducting strip (2), when aluminum cold end terminal (1), copper bar (3), tin conducting strip (2) are in connection status, the lower surface of aluminum cold end terminal (1) is in contact with the upper surface of tin conducting strip (2), and the lower surface of tin conducting strip (2) is in contact with the upper surface of copper bar (3).Tin conducting strip is placed between copper bar and the aluminum cold end terminal of aluminium alloy cable, plays transitional function, effectively avoids the electrochemical corrosion and thermal creep occurred when copper, aluminium contact.
Description
Technical field
It the utility model is related to photovoltaic plant cable electrical connection area, more particularly to aluminum cold end terminal and copper bar transition
Connection component field.
Background technology
Photovoltaic plant field needs substantial amounts of power cable, and the electric energy of photovoltaic module is collected into remittance by power cable
After stream, transmitted to power network.In order to reduce cable investment cost, power cable is in recent years more and more using aluminium alloy cable
Instead of copper cable.Aluminium alloy cable crimps aluminum cold end terminal, aluminum cold pressing end in the termination of aluminium alloy cable when in use
Sub- Long Term Contact copper bar, it may occur that electrochemical corrosion, reduction contact area, and the thermal coefficient of expansion of metallic copper and aluminium have larger
Difference, after two kinds of materials directly contact compression, due to the heating after current lead-through, under different thermal expansion factor effects, it can produce
Raw relative creeping displacement, long-term thermal creep can cause contact to loosen, resistance increase.
At present during using aluminium alloy cable, the cold pressing end of copper-aluminium transition can be crimped in the termination of aluminium alloy cable
Son solves the problems, such as thermal creep and electrochemical corrosion.But domestic copper-aluminum transition terminal cost is high, supply channel is few, quality not
Reliably, the application to aluminium alloy cable brings many difficulties.
Utility model content
The purpose of this utility model is to provide a kind of aluminum cold end terminal and copper bar transition connection component, current to solve
Aluminum cold end terminal contacts with copper bar in the prior art easily occurs electrochemical corrosion and thermal creep, and copper-aluminium transition cold pressing end
Son in-convenience in use and the technical problem such as cost height.
The technical problem that the utility model solves can take following scheme to realize：A kind of aluminum cold end terminal and copper
It is drained through and crosses connection component, it is characterised in that：It is fixedly connected between aluminum cold end terminal and copper bar by tin conducting strip, aluminum
When cold end terminal, copper bar, tin conducting strip are in connection status, the lower surface of aluminum cold end terminal and the upper surface phase of tin conducting strip
Contact, the lower surface of tin conducting strip is in contact with the upper surface of copper bar.
It is preferred that the thickness range of the tin conducting strip is 0.5mm~1mm.
It is preferred that the thickness of the tin conducting strip is 0.8mm.
It is preferred that the lower surface of aluminum cold end terminal can be completely covered in the upper surface of the tin conducting strip.
Preferably：The upper surface of the tin conducting strip and the shape of lower surface and the shape of aluminum cold end terminal lower surface
It is identical.
The utility model structure design is simple, and tin conducting strip is placed on to the aluminum cold end terminal of copper bar and aluminium alloy cable
Between, play transitional function.Electrochemical corrosion effect, and tin and metallic copper and aluminium does not occur when tin material contacts with copper, aluminium
Similar thermal expansion coefficient, be not susceptible to thermal creep during contact；Therefore the utility model can effectively avoid copper bar and aluminum
The electrochemical corrosion and thermal creep phenomenon that cold end terminal connection is also easy to produce, and tin conducting strip quality is soft, is easy to processing, cost
It is low, cost is reduced compared with using copper-aluminum transition terminal.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some realities of the present utility model
Example is applied, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is aluminum cold end terminal and copper bar transition connection component connection diagram
Fig. 2, Fig. 3 are tin conducting strip upper surface, the schematic shapes of lower surface
Main tender and label：
Aluminum cold end terminal：1；Copper bar：3；Tin conducting strip：2；
Embodiment
To make the purpose of this utility model, technical scheme and advantage clearly show, below in conjunction with accompanying drawing to this
Utility model embodiment is described in further detail.
Embodiment
Aluminum cold end terminal shown in Fig. 1 is in connection status, aluminum cold end terminal 1 and copper bar with copper bar transition connection component
It is fixedly connected between 3 by tin conducting strip 2, when aluminum cold end terminal 1, copper bar 3, tin conducting strip 2 are in connection status, aluminium
The lower surface of matter cold end terminal 1 is in contact with the upper surface of tin conducting strip 2, the lower surface of tin conducting strip 2 and the upper surface of copper bar 3
It is in contact.
Electrochemical corrosion effect, and the thermal expansion system of tin and metallic copper and aluminium does not occur when tin material contacts with copper, aluminium
Number is close, is not susceptible to thermal creep during contact；Therefore tin conducting strip is placed between copper bar and aluminum cold end terminal and can played
Transitional function, avoid that thermal creep and electrochemical corrosion occurs.
It is preferred that the thickness range of tin conducting strip 2 is 0.5mm~1mm, it is preferred that the thickness of tin conducting strip 2 is
0.8mm, ultra-thin tin conducting strip can reduce cost, can reduce contact resistance again, improve conductance, and can guarantee that transition
Intensity requirement.
For the in-site installation saved material He be easy to connection component, the concrete shape of transition tin conducting strip, size according to
The concrete model of terminal determines, it is preferable that enables the upper surface of tin conducting strip 2 aluminum cold end terminal 1 is completely covered
Lower surface.It is preferred that the upper surface of tin conducting strip 2 and the shape of lower surface and the shape phase of the lower surface of aluminum cold end terminal 1
Together.The upper surface of tin conducting strip 2 and the shape of lower surface can be as shown in accompanying drawing 2, accompanying drawing 3 according to the terminal design of different model
Shape.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (5)
1. a kind of aluminum cold end terminal and copper bar transition connection component, it is characterised in that：Aluminum cold end terminal (1) and copper bar (3)
Between be fixedly connected by tin conducting strip (2), aluminum cold end terminal (1), copper bar (3), tin conducting strip (2) be in connection shape
During state, the lower surface of aluminum cold end terminal (1) is in contact with the upper surface of tin conducting strip (2), the lower surface of tin conducting strip (2) with
The upper surface of copper bar (3) is in contact.
2. aluminum cold end terminal according to claim 1 and copper bar transition connection component, it is characterised in that：The tin is conductive
The thickness range of piece (2) is 0.5mm~1mm.
3. aluminum cold end terminal according to claim 2 and copper bar transition connection component, it is characterised in that：The tin is conductive
The thickness of piece (2) is 0.8mm.
4. aluminum cold end terminal according to claim 1 and copper bar transition connection component, it is characterised in that：Tin conducting strip
(2) lower surface of aluminum cold end terminal (1) can be completely covered in upper surface.
5. aluminum cold end terminal and copper bar transition connection component according to claim 1 or 4, it is characterised in that：The tin
The shape of conducting strip (2) upper surface and lower surface is identical with the shape of aluminum cold end terminal (1) lower surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720295118.0U CN206628610U (en) | 2017-03-24 | 2017-03-24 | A kind of aluminum cold end terminal and copper bar transition connection component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720295118.0U CN206628610U (en) | 2017-03-24 | 2017-03-24 | A kind of aluminum cold end terminal and copper bar transition connection component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206628610U true CN206628610U (en) | 2017-11-10 |
Family
ID=60209174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720295118.0U Expired - Fee Related CN206628610U (en) | 2017-03-24 | 2017-03-24 | A kind of aluminum cold end terminal and copper bar transition connection component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206628610U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109841399A (en) * | 2017-11-24 | 2019-06-04 | 特变电工沈阳变压器集团有限公司 | A kind of connection method of transformer ground screen lead and terminal |
| CN111446557A (en) * | 2020-03-26 | 2020-07-24 | 阳光电源股份有限公司 | Wiring device of photovoltaic equipment |
| CN112186371A (en) * | 2020-09-23 | 2021-01-05 | 张金凤 | Quick-wrapping type copper-aluminum transition sleeve and use method thereof |
-
2017
- 2017-03-24 CN CN201720295118.0U patent/CN206628610U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109841399A (en) * | 2017-11-24 | 2019-06-04 | 特变电工沈阳变压器集团有限公司 | A kind of connection method of transformer ground screen lead and terminal |
| CN111446557A (en) * | 2020-03-26 | 2020-07-24 | 阳光电源股份有限公司 | Wiring device of photovoltaic equipment |
| EP3886317A1 (en) * | 2020-03-26 | 2021-09-29 | Sungrow Power Supply Co., Ltd. | Wiring device of photovoltaic equipment |
| CN111446557B (en) * | 2020-03-26 | 2021-12-10 | 阳光电源股份有限公司 | Wiring device of photovoltaic equipment |
| US11362621B2 (en) | 2020-03-26 | 2022-06-14 | Sungrow Power Supply Co., Ltd. | Wiring device of photovoltaic equipment |
| CN112186371A (en) * | 2020-09-23 | 2021-01-05 | 张金凤 | Quick-wrapping type copper-aluminum transition sleeve and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171110 Termination date: 20190324 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |