CN206461100U - A kind of aluminum conductor creep resistant crimp type terminal - Google Patents
A kind of aluminum conductor creep resistant crimp type terminal Download PDFInfo
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- CN206461100U CN206461100U CN201720093890.4U CN201720093890U CN206461100U CN 206461100 U CN206461100 U CN 206461100U CN 201720093890 U CN201720093890 U CN 201720093890U CN 206461100 U CN206461100 U CN 206461100U
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- aluminum conductor
- type terminal
- crimp type
- brass bushing
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Abstract
The utility model is related to a kind of aluminum conductor creep resistant crimp type terminal, automotive wire bundle manufactures field, the crimp type terminal is used to connect aluminum conductor, aluminium hydraulic pressed connecting pipe and cylindric brass bushing including one end open, the interference of described brass bushing one end is embedded in aluminium hydraulic pressed connecting pipe, other end formation aluminum conductor insert port, brass bushing is provided with several through holes, the through hole two ends are respectively on the inner cylinder face and outer cylinder face of the brass bushing of cylindrical shape, and through hole one end on inner cylinder face is higher than inner cylinder face, at least one can make brass bushing produce the elastically-deformable breach of radial direction in the axial direction on brass bushing；The crimp type terminal can puncture the oxide-film and increase bonding strength of aluminum conductor, so as to improve the conductance and creep-resistant property of aluminum conductor.
Description
Technical field
The present invention relates to a kind of aluminum conductor creep resistant crimp type terminal, belong to automotive wire bundle manufacture field.
Background technology
The material of vehicular cable typically uses aluminium or copper, and the conductance of aluminium is the 61% of copper, but aluminium density 2.7g/cm3, copper
Density 8.9g/cm3, and the cost of aluminium conductor is approximately the cost of copper conductor, so the conductive number for calculating by weight aluminium is higher than copper,
Therefore there is higher cost performance in automobile-used lightweight aluminium cable.
The terminal being connected in automotive field with wire is made of red copper material, and influence aluminum conductor is in automotive field application
Main cause be there is electrochemical corrosion between aluminum conductor and copper tip and crimp the problem of creep-resistant property is poor, while aluminium is led
There is oxide-film in line surface, add the contact resistance of conductor and terminal；The mechanical strength of wire harness after other conventional terminal crimping
Deficiency, voltage drop is higher, the problems such as easily occurring terminal removal and wire harness scaling loss.
The content of the invention
There is provided a kind of oxide-film that can puncture aluminum conductor and increasing in order to solve problems of the prior art by the present invention
Plus bonding strength, so as to improve the conductance of aluminum conductor and the crimp type terminal of creep-resistant property.
In order to achieve the above object, the utility model proposes technical scheme be：A kind of aluminum conductor creep resistant crimp type terminal,
For connecting aluminum conductor, the crimp type terminal includes the aluminium hydraulic pressed connecting pipe and cylindric brass bushing of one end open, described brass bushing one end
Interference is embedded in aluminium hydraulic pressed connecting pipe, and other end formation aluminum conductor insert port, brass bushing is provided with several through holes, the through hole two ends
On the inner cylinder face and outer cylinder face for being respectively at the brass bushing of cylindrical shape, and the through hole one end being on inner cylinder face is higher than interior
At least one can make brass bushing produce the elastically-deformable breach of radial direction in the axial direction on barrel surface, brass bushing.
Above-mentioned technical proposal is further designed to：Described through hole one end on inner cylinder face is formed by processing
Burr makes the through hole end be higher than inner cylinder face；Or the through hole end is higher than inner cylinder face by upsetting processing.
In order to reduce the resistance that aluminum conductor inserts brass bushing, described through hole one end on inner cylinder face and inner cylinder face
Difference in height be 0.01-0.05mm.
In order that the aluminum conductor insert port that aluminum conductor is more easily inserted on insert port, the brass bushing is to radial outside
The horn mouth being bent to form.
The horn mouth is formed by crimping.
The brass bushing bends to arc plate by least one latten(-tin) and formed, and the joint of arc plate is left gap and formed
The breach.
The arc plate is formed after through hole by punching by the latten(-tin) of rectangle and is bent to form, and the through hole is on latten(-tin)
It is uniformly distributed.
The thickness of the brass bushing is 0.2 ~ 0.5mm, and the aperture size of through hole is 0.3 ~ 0.5mm, the center of adjacent through-holes
Spacing is 1.0 ~ 1.2mm.
The aluminium hydraulic pressed connecting pipe other end is provided with contact pin or copper lug, for crimp type terminal to be connected with electrical equipment.
Aluminium hydraulic pressed connecting pipe and the brass bushing surface is silver-plated or tin plating, prevents terminal surfaces from aoxidizing and reduction aluminum conductor and terminal
Electrochemical corrosion.
Technical solution of the present invention has the beneficial effect that：
1st, aluminium hydraulic pressed connecting pipe is used to be connected with aluminum conductor in technical scheme, due in the aluminium hydraulic pressed connecting pipe being connected with aluminum conductor
It is interior to be provided with latten(-tin), it is to avoid aluminium hydraulic pressed connecting pipe is directly contacted with aluminum conductor, so that slow down the electrochemical corrosion between copper aluminium,
Wire harness is set to use steadily in the long term.
2nd, because brass bushing is provided with breach, make it flexible in aluminium hydraulic pressed connecting pipe, simultaneously because the ductility of copper aluminium is different,
During crimping, brass bushing can sting tight aluminum conductor and aluminium hydraulic pressed connecting pipe, make its it is tightly compacted formation one entirety, increase wire with
The coupling mechanism force of terminal, improves the creep resisting ability of wire harness and adds the bonding strength between wire and terminal.
3rd, the through hole on brass bushing is higher than inner cylinder face in through hole one end on inner cylinder face, can during crimping
To puncture the oxide-film on aluminum conductor surface, conductor contact area is added, wire harness conductance is improved, while through hole gathers and brass
Put, form network and further increase conductor contact area.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is Fig. 1 use state schematic diagram.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in detail specific embodiment.
Embodiment
As shown in figure 1, the aluminum conductor creep resistant crimp type terminal of the present embodiment, including the one end open that is made of red copper material
Aluminium hydraulic pressed connecting pipe 1 and cylindrical brass bushing 2, one end interference of brass bushing 2 are embedded in aluminium hydraulic pressed connecting pipe, other end formation aluminum conductor insertion
Mouthful.
As shown in Fig. 2 the aluminum conductor creep resistant crimp type terminal of the present embodiment is used to connect aluminum conductor 3, the terminal passes through pressure
Adapter 1 is crimped with aluminum conductor 3, and the cable insulation wrapper 4 outside aluminum conductor 3 is peeled off before crimping, aluminum conductor 3 is penetrated into aluminium hydraulic pressed connecting pipe 1
In interior brass bushing 2, the other end of aluminium hydraulic pressed connecting pipe 1 is provided with contact pin, for crimp type terminal to be connected with electrical equipment, contact pin also alternatively into
Copper lug.
Brass bushing 2 is bent to form after latten(-tin) punching in the present embodiment, in several through holes of the formation of brass bushing 2 after punching
21, by adjusting punching technology through hole 21 can be made to be uniformly distributed on latten(-tin), the two ends of through hole 21 are respectively at the Huang of cylindrical shape
On the inner cylinder face and outer cylinder face of copper sheathing 2, and the one end of through hole 21 being on inner cylinder face is higher than inner cylinder face, brass bushing 2
On in the axial direction at least one can make brass bushing 2 produce the elastically-deformable breach of radial direction, so as to ensure that brass bushing 2 has
There is certain elasticity, brass bushing 2 can be supported to coordinate with aluminium hydraulic pressed connecting pipe 1 and do not dropped.
Several are formed in punch process on the edge of through hole 21 to the burr extended inside brass bushing 2, passes through burr
One end of through hole 21 on inner cylinder face is set to be higher than inner cylinder face, so when inserting aluminum conductor 3, burr can puncture aluminum conductor
Oxide-film on 3, while burr can be also scratched, further increases the contact area of conductor；It can also be processed by upsetting
The end of through hole 21 is higher than inner cylinder face, can also puncture the oxide-film on aluminum conductor 3；In order to prevent the end face of through hole 21 too high to aluminium
The insertion of wire 3 causes too big resistance, and the present embodiment is by the height of one end of through hole 21 on inner cylinder face and inner cylinder face
Difference is designed as 0.01-0.05mm.
Brass bushing 2 is made up of at least one arc plate in the present embodiment, and arc plate is bent to form by the latten(-tin) after punching,
The arc length sum of circular arc mesh sheet used is less than the inner circle girth of aluminium hydraulic pressed connecting pipe 1, it is ensured that the brass bushing 2 ultimately formed is in aluminium hydraulic pressed connecting pipe
Leaving certain gaps uncovered by the economic plan in 1, the width of arc plate is more than the length of aluminium hydraulic pressed connecting pipe 1 so that the formation aluminium of aluminium hydraulic pressed connecting pipe 1 is stretched out in one end of brass bushing 2
Wire insert port, the present embodiment stretches out the part of aluminium hydraulic pressed connecting pipe 1 in brass bushing 2 and is bent to form horn mouth, horn mouth to the periphery of brass bushing 2
Formed can use crimping form, due to brass bushing 2 aluminum conductor insert port be horn mouth, insert aluminum conductor 3 when can be square
Just insert port is found, threading and assembling beneficial to aluminum conductor 3.
The material that brass bushing 2 is made in the present embodiment can select the latten(-tin) that thickness is 0.2 ~ 0.5mm, be formed after punching
The aperture size of through hole 21 is 0.3 ~ 0.5mm, and the center spacing of adjacent through-holes 21 is 1.0 ~ 1.2mm, specifically can be according to punching work
Skill is adjusted, it is ensured that through hole is clouded in brass bushing 2, as much as possible can puncture oxide-film when with aluminum conductor crimping, increase
The contact area of brass bushing 2 and aluminium, and the bonding strength of brass bushing 2 and aluminum conductor can be increased.
Aluminium hydraulic pressed connecting pipe 1 and the surface of brass net 2 are silver-plated or tin plating in the present embodiment, prevent terminal surfaces from aoxidizing and reduction aluminium
The electrochemical corrosion of wire and terminal.
The aluminum conductor creep resistant crimp type terminal of the present invention is not limited to the various embodiments described above, and all use equivalent substitution modes are obtained
To technical scheme all fall within the scope of protection of present invention.
Claims (10)
1. a kind of aluminum conductor creep resistant crimp type terminal, for connecting aluminum conductor, it is characterised in that：Aluminium hydraulic pressed connecting pipe including one end open
With cylindric brass bushing, the interference of described brass bushing one end is embedded in aluminium hydraulic pressed connecting pipe, other end formation aluminum conductor insert port, brass
Put provided with several through holes, the through hole two ends are respectively on the inner cylinder face and outer cylinder face of the brass bushing of cylindrical shape,
And through hole one end on the inner cylinder face is higher than on inner cylinder face, brass bushing that at least one can make brass bushing in the axial direction
Produce the elastically-deformable breach of radial direction.
2. aluminum conductor creep resistant crimp type terminal according to claim 1, it is characterised in that：It is described logical on inner cylinder face
Hole one end forms burr by processing makes the through hole end be higher than inner cylinder face；Or the through hole end is higher than inner cylinder by upsetting processing
Face.
3. aluminum conductor creep resistant crimp type terminal according to claim 2, it is characterised in that：It is described logical on inner cylinder face
The difference in height in hole one end and inner cylinder face is 0.01-0.05mm.
4. aluminum conductor creep resistant crimp type terminal according to claim 1, it is characterised in that：Aluminum conductor on the brass bushing is inserted
Entrance is the horn mouth being bent to form to radial outside.
5. aluminum conductor creep resistant crimp type terminal according to claim 4, it is characterised in that：The horn mouth passes through crimping shape
Into.
6. according to one of claim 2 to 5 aluminum conductor creep resistant crimp type terminal, it is characterised in that：The brass bushing is by extremely
A few latten(-tin) bends to arc plate and formed, and the joint of arc plate leaves gap and forms the breach.
7. aluminum conductor creep resistant crimp type terminal according to claim 6, it is characterised in that：The arc plate by rectangle brass
Piece is bent to form after forming through hole by punching, and the through hole uniformly gathers on latten(-tin).
8. aluminum conductor creep resistant crimp type terminal according to claim 7, it is characterised in that：The thickness of the brass bushing be 0.2 ~
0.5mm, the aperture size of through hole is 0.3 ~ 0.5mm, and the center spacing of adjacent through-holes is 1.0 ~ 1.2mm.
9. aluminum conductor creep resistant crimp type terminal according to claim 8, it is characterised in that：The aluminium hydraulic pressed connecting pipe other end is provided with slotting
Pin or copper lug.
10. aluminum conductor creep resistant crimp type terminal according to claim 9, it is characterised in that：Aluminium hydraulic pressed connecting pipe and the brass bushing table
Face is silver-plated or tin plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720093890.4U CN206461100U (en) | 2017-01-24 | 2017-01-24 | A kind of aluminum conductor creep resistant crimp type terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720093890.4U CN206461100U (en) | 2017-01-24 | 2017-01-24 | A kind of aluminum conductor creep resistant crimp type terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206461100U true CN206461100U (en) | 2017-09-01 |
Family
ID=59698815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720093890.4U Active CN206461100U (en) | 2017-01-24 | 2017-01-24 | A kind of aluminum conductor creep resistant crimp type terminal |
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| CN (1) | CN206461100U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711627A (en) * | 2017-01-24 | 2017-05-24 | 南京康尼新能源汽车零部件有限公司 | Creep-resistant crimping terminal for aluminum conductor |
| CN109768444A (en) * | 2019-01-15 | 2019-05-17 | 哈尔滨工业大学 | A kind of termination and mode of connection suitable for litz wire |
-
2017
- 2017-01-24 CN CN201720093890.4U patent/CN206461100U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106711627A (en) * | 2017-01-24 | 2017-05-24 | 南京康尼新能源汽车零部件有限公司 | Creep-resistant crimping terminal for aluminum conductor |
| CN109768444A (en) * | 2019-01-15 | 2019-05-17 | 哈尔滨工业大学 | A kind of termination and mode of connection suitable for litz wire |
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