CN204760719U - Crimping structure and special mould of aluminum alloy cable and copper -aluminium alloy terminal - Google Patents
Crimping structure and special mould of aluminum alloy cable and copper -aluminium alloy terminal Download PDFInfo
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- CN204760719U CN204760719U CN201520437469.1U CN201520437469U CN204760719U CN 204760719 U CN204760719 U CN 204760719U CN 201520437469 U CN201520437469 U CN 201520437469U CN 204760719 U CN204760719 U CN 204760719U
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- terminal
- aluminium alloy
- copperhead
- wire barrel
- alloy cable
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Abstract
The utility model provides a crimping structure of aluminum alloy cable and copper -aluminium alloy terminal, the copperhead of front end for having the bolt hole of copper -aluminium alloy terminal, copperhead end -to -end connection have columniform aluminum alloy's a wire barrel, and the wire barrel has a wiring hole that supplies to insert the aluminum alloy cable, during the conductor of aluminum alloy cable inserts the wiring hole, its characterized in that: the wire barrel outer wall has a crimping portion of one or more hexagon cylinder formula, and every crimping portion has at least and has sunken hole point on the face, conductor and wire barrel are put because the deformation of wire barrel and linking firmly at the crimping position. The utility model provides a crimping mould of above -mentioned crimping structure is exclusively used in. Make the aluminum alloy cable can improve the installation effectiveness with being connected of motor, reinforcing firm in connection degree and grip reduce the temperature rise, reduce galvanic corrosion, reduce material cost and installation cost, the emergence of reduced safety accident and electric power fire incident, improvement life.
Description
Technical field
The utility model relates to a kind of connecting device for line, particularly a kind of crimp for motor connecting device for line and aluminum alloy cable conductor.
Background technology
Motor circuit mainly includes power input and power output end (link of motor terminals and motor coil), and circuit mainly adopts copper conductor.Progress along with technology and the requirement to cost, start to adopt aluminium alloy conductor as main line at the input of power supply, and power output end still adopts copper conductor in industry.Therefore, a kind of suitable albronze terminal is needed to be connected with the transition of motor as main line.
The terminal box of current motor all designs as power supply input conductor according to copper cable, and volume size is only applicable to adopting copper tip; According to aluminium alloy cable as power supply input conductor, cross-sectional area of conductor certainly will improve 1-2 specification can reach identical ampacity, according to traditional copper aluminium terminal, length dimension by more many greatly than original copper tip, cause cannot normal mounting in the terminal box of motor.
Owing to not being matched with the special wiring terminal that aluminium alloy cable is connected with motor, the selection of installation personnel to terminal has no basis, and the circuit causing aluminium alloy cable to be connected with motor is installed multifarious, there is extremely serious potential safety hazard.
At present, standard, specification that the splicing ear that aluminium alloy cable and motor power input technical field use is still ununified, as Fig. 1 schematic diagram comprises the planar dimension scope 101 of connection box for motor, junction block 102, power access end 103 is copper product, and power output end 104 (link of motor terminals and motor coil) is copper product; Power access end 103 is connected with copper sheet with power output end 104.
The aluminium alloy cable of prior art and terminal, as Fig. 1 has following 2 kinds of connected modes usually:
One, the terminal (terminal A) of Fig. 1 first terminal (terminal A) and Fig. 2-1 from top to bottom, belong to bolt type copper aluminium terminal, belong to and connect comparatively conventional product for motor copper aluminium at present, aluminum pipe portion 201 is common fine aluminium material, conductor 301 is aluminum alloy cable conductor, copperhead 202 is T3 red copper material, bolt 203 is its material of bolt of compression wire is brass ware, aluminum pad 602 is aluminum pad, copperhead 205 respectively exceeds the step of about 1MM than connecting portion about 206, the actual face contacted with motor terminals only has copperhead 205 position, the shortcoming of this type terminal applications on motor has:
A, aluminium alloy conductor 301 adopt brass bolt 203 to lock with the junction in terminal aluminum pipe portion 201, and cannot effectively conductor 301 and terminal closely, all sidedly be combined, the material kind of junction is excessively assorted, and the electric property impact of butt joint greatly; This kind of product endoporus is across footpath comparatively large (namely a kind of endoporus of specification terminal can contain the cable conductor of 3 kinds of specifications or more), also need to install an aluminum pad 602 additional in the middle of when lion indicator lattice connect, during installation, also aluminum pipe portion 201 inwall and conductor 301 junction can leave very large space to the wire barrel of bolt 203 position, easy generation couple corrosion and temperature too high, when running into motor immediate current or starting current or phase shortage, as easy as rolling off a log breaking out of fire;
B, conductor 301 adopt bolt 203 to compress with the junction in aluminum pipe portion 201 with aluminum pad 602 again, and motor to be in operation be equipment with vibratility, through work for a long time, add top connection have certain temperature or produce temperature rise, bolt 203 is deteriorated with the tautness of thread, conductor 301 due to temperature rise cause expand and with top power, machine operation, stop cause expanding with heat and contract with cold more easily produce bolt loosen, joint is insecure and electric power fire incident occurs.
C, copperhead 205 respectively exceed the step of about 1MM than connecting portion about 206, the actual face contacted with motor terminals only has copperhead 205 position, and the less resistance that causes of contact-making surface increases, and temperature rise easily raises.
D, adopt screw bolt-type connect be compared to compression joint type connect grip force obviously not enough.
Material and the manufacturing cost of E, bolt type copper aluminium terminal are high, are about 3 times of ordinary copper aluminium terminal.
Two, the terminal B of Fig. 1 from top to bottom shown by second terminal B and Fig. 2-2 is common crimp type copper aluminium terminal, belongs to the product that current fraction is used in the connection of motor copper aluminium, also belongs to and connect least reliably:
The aluminum pipe portion 204 of A, terminal and the length of copperhead 205 all comparatively partially long, namely to be longer than the installation dimension of terminal box many for terminal total length, cannot be installed in motor box, installation personnel all adopt by aluminum pipe portion 204 end saw short after, carry out crimping with common hexagonal confined pressure pressing mold again and form pressure contact portion 601, crimping number of channels like this reduces, crimp not tight, the grip that terminal is connected with cable is not enough, easily occur coming off, very easily because crimping loosely causes couple corrosion, the too high breaking out of fire accident of temperature rise.Or adopt and to be carried out by connector cover reequiping (up-sizing makes again, install), so waste time and energy and increase cost, during misoperation, easily initiation quality accident being damaged to motor housing and insulating barrier.
B, copperhead 205 respectively exceed the step of about 1MM than connecting portion about 206, the actual face contacted with motor terminals only has copperhead 205 position, and the less resistance that causes of contact-making surface increases, and temperature rise easily raises.
According to above the first product terminal A, because motor is operationally with vibratility, easily cause joint looseness, the impact such as fail safe, reliability and useful life connected cable greatly.
According to the second product terminal B, because the length of conventional copper aluminium terminal is greater than terminal box size, artificial further conversion is needed to use reluctantly, as this increased many artificial, material cost, and efficiency is extremely low, because the firmness of joint and grip deficiency easily cause Joint's falling off, there is serious hidden danger of quality in joint, and the impacts such as the fail safe run cable, reliability and useful life are also quite large.
The pressure contact portion 601 of terminal B, conventional die all adopts hexagonal confined pressure to crimp, because aluminum alloy cable conductor all adopts the production technology of compacting pressing, the compaction rate of its conductor is very high, crimp according to hexagonal confined pressure, the connection packing of crimping rear terminal and cable conductor obtains terribly too many change, add short terminal (as motor terminal), reduce by a half than traditional 2-4 road, the parameter request that the grip of whole joint and firmness all cannot be up to state standards in crimping number of channels.
Utility model content
The utility model provides the crimping structure of a kind of aluminium alloy cable and albronze terminal, its objective is the shortcoming solving prior art and exist, the connection of aluminium alloy cable and motor is made to improve installation effectiveness, strengthen degree of being connected firmly and grip, reduce temperature rise, reduce couple corrosion, reduce material cost and installation cost, reduce the generation of security incident and electric power fire incident, improve useful life.
The utility model also provides a kind of crimp being exclusively used in above-mentioned crimping structure.
The utility model solves the technical scheme that its technical problem adopts:
The crimping structure of a kind of aluminium alloy cable and albronze terminal, the front end of albronze terminal is the copperhead with bolt hole, copperhead end is connected with copperhead facade, copperhead facade is connected with the wire barrel of columniform aluminum alloy material with copper cylindrical rod, wire barrel has the wiring hole for access aluminium alloy cable, the conductor of aluminium alloy cable inserts in wiring hole, it is characterized in that: wire barrel outer wall has the pressure contact portion of one or more hexagon cylinder formula, each pressure contact portion has a hole point face with depression at least; Conductor and wire barrel are connected due to the distortion of wire barrel in pressure contact portion position.
The vertical section of the hole point of described depression is trapezoidal or cone-shaped.
Each pressure contact portion has two hole points, and two hole points are positioned on two relative faces of pressure contact portion.
The rearward end of wire barrel is 3-5mm to the distance at the edge of the connection box for motor corresponding with it.
The upper plane of copperhead and lower plane are the whole plane structure without ladder; The end face of copperhead facade is 1-3MM to the distance of the outer surface of copper cylindrical rod, the side of copperhead facade and be 3-6MM to the distance of the outer surface of copper cylindrical rod.
A crimp for the crimping structure of aluminium alloy cable and albronze terminal, is characterized in that: comprise several hexagonal confined pressure body, and the inner surface of several hexagonal confined pressure body forms a hexagon cylinder, and at least one mask has protruding salient point.
Usefulness of the present utility model is:
The utility model employing not only confined pressure but also the crimping mode with hole laminated structure, not only can the pipe portion material point of terminal be depressed in the middle of aluminium alloy conductor while carrying out confined pressure connection, and can effectively by the gap compacting of conductor, special in short terminal (as motor special purpose copper aluminium alloy terminal) though only carry out the crimping in 1-2 road, but because it is with the special crimping mode pressed, far above national standard requirement in the test of firmness and pull-off force.
The pore internal diameter of the utility model motor special purpose copper aluminium alloy terminal matches with cable conductor one to does not have lion indicator lattice, adopts crimping mode, and after crimping, packing is high, not easily produces temperature rise, can not produce joint looseness during motor oscillating, is not easy to produce couple corrosion.
The utility model motor special purpose copper aluminium alloy terminal is according to the size of connection box for motor, under the prerequisite ensureing electric property, the length of copperhead and the length of wire barrel are all shortened, namely total length can smooth and easyly reasonably be arranged in motor box after shortening, no longer arbitrarily pipe portion is sawed short through installation personnel, stop security incident and occur.
The material cost of the utility model motor special purpose copper aluminium alloy terminal and the cost of manufacturing cost and ordinary copper aluminium terminal very close, than material cost and the low cost of manufacture about 3 times of bolt type copper aluminium terminal, the waste without reason of resource can be greatly reduced.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Fig. 1: existing terminal is installed on the connection diagram of motor box;
Fig. 2-1: prior art terminal A structure chart;
Fig. 2-2: prior art terminal B structure chart;
Fig. 3: the utility model albronze terminal is installed on the connection diagram of motor box;
Fig. 4: the utility model motor special purpose copper aluminium alloy terminal compression joint pre-structure figure;
Fig. 5: the special crimp structure chart of the utility model aluminium alloy cable;
Fig. 6: structure chart when the special crimp of the utility model aluminium alloy cable and motor special purpose copper aluminium alloy terminal compression joint;
Fig. 7: the structure chart after the utility model aluminium alloy cable and albronze terminal compression joint.
Embodiment
As shown in Figure 4, the front end of the utility model albronze terminal is the copperhead 2 with bolt hole 3, and the upper plane of copperhead and lower plane are the whole plane structure without ladder; The end face of copperhead facade is 1-3MM to the distance of the outer surface of copper cylindrical rod, the side of copperhead facade and be 3-6MM to the distance of the outer surface of copper cylindrical rod.(also namely: copperhead 2 lower planes adopts the whole plane structure without ladder, copperhead facade 5 exceeds 1-3MM than the diameter of copper cylindrical rod end 4, with copperhead side 6 more bilateral than copper cylindrical rod end 4 wide go out 3-6MM), copperhead end is connected with the wire barrel 1 of columniform aluminum alloy material, and wire barrel 1 has the wiring hole for access aluminium alloy cable.
As shown in Figure 5, crimp of the present utility model comprises upper and lower two hexagonal confined pressure bodies 400, the inwall of each hexagonal confined pressure body 400 has the middle part in a face of the centre of three planes, 402, three planes 402 to have the salient point 401 that a vertical section is trapezoidal projection.Two hexagonal confined pressure bodies 400 and together after, its inner surface forms a hexagon cylinder.
As shown in Figure 6, after the conductor 92 of aluminium alloy cable 91 is inserted in the wiring hole of wire barrel 1, upper by crimp, lower two hexagonal confined pressure bodies 400 correspond to the position of wire barrel 1, then after mould pressing, lift, mobile rear pressing again, form the structure as Fig. 7, the outer wall of wire barrel 1 has twice pressure contact portion 504, pressure contact portion 504 is hexagon cylinder formula, the vertical section that the surface distributed that two of each pressure contact portion 504 are relative has depression is that trapezoidal hole point 503 (only shows the hole point 503 be positioned at above of each pressure contact portion 504 in figure, also has the not display of a hole point 503 below), six planes of pressure contact portion 504 are extruded by six planes 402 of two hexagonal confined pressure bodies 400, and two hole points 503 are extruded by two salient points 401 of two hexagonal confined pressure bodies 400.Like this, conductor 92 and wire barrel 1 are connected due to the distortion of wire barrel 1 in the position of pressure contact portion 504.
The special crimp of this use novel aluminium alloy cable, on the basis of the plane 402 of hexagonal confined pressure body 400, add the salient point 401 of upper and lower 2 trapezium structures, wire barrel 1 is while the operation of hexagonal confined pressure body about 400 crimps into the pressure contact portion 504 of hexagonal section, the inside utilizing upper and lower 2 salient points 401 effectively the material of the wire barrel 1 of albronze terminal to be depressed into wiring hole forms upper and lower 2 holes point 503, these materials also can enter the inside of conductor 92, the gap of conductor 92 effectively can be filled up and strengthen outside firmness, whole wire barrel 1 can be made again in horizontal tensile mechanical effect, greatly strengthen the grip of wire barrel 1.
As shown in Figure 3, the planar dimension scope 101 of connection box for motor, junction block 102, power access end 103 is copper product, and power output end 104 (link of motor terminals and motor coil) is copper product; Power access end 103 is connected with copper sheet with power output end 104.The copperhead 2 of the utility model motor special purpose copper aluminium alloy terminal and aluminium alloy tube connector 1 position, both are all under the prerequisite meeting electricity function index, 3-5mm less of the installation dimension of connection box for motor is reduced to according to the installation dimension of connection box for motor, namely also the rearward end of wire barrel 2 is 3-5mm to the distance at the edge of the connection box for motor corresponding with it, the length of the C also namely in Fig. 3 is 3-5mm, therefore the utility model can be installed in the terminal box of motor swimmingly.
Crimp type motor special purpose copper aluminium alloy binding post, the palmation of copperhead 1 is with bolt hole 3, whole copper head structure size reduces 1/4-1/3 than conventional terminal size, aluminium-alloy pipe portion length dimension reduces 1/3-1/2 (referring to table 1) than conventional terminal size, copperhead adopts and first forges and presses the technology of welding afterwards, copperhead and aluminium alloy wire barrel adopt the form of friction welding to be connected, and it is characterized in that: copperhead and aluminium-alloy pipe physical dimension shorter than conventional products.Terminal overall structure size 1/3-1/2 shorter in conventional products, namely the physical dimension of whole motor terminal is than about the short half of conventional terminal total length, refers to annex " connection box for motor and the terminal parameters table of comparisons ".
Table 1:
This experiment New-type electric machine special purpose copper aluminium alloy terminal has following advantage:
1, do not need again through artificial process and remould, easy and simple to handle, can be installed in connection box for motor swimmingly;
2, material cost and manufacturing cost and cost of labor is reduced;
3, increase the contact-making surface that terminal is connected with motor, reduce contact resistance;
4, play reduction resistance to whole joint and circuit, reduce temperature rise, reduce electricity and damage, improve ampacity, useful life extends;
5, improve installation effectiveness, reduce energy consumption, environmental protection.
The special pressure welding mold of this experiment novel aluminium alloy cable has following advantage:
1, can the pipe portion material point of terminal be depressed in the middle of aluminium alloy conductor, effectively by the gap compacting of conductor, effectively enhance the firmness of joint;
2, special in short albronze terminal applications (as motor special purpose copper aluminium alloy terminal), though only carry out the crimping in 1-2 road, because it is with the special crimping mode pressed, in horizontal tensile mechanical effect, greatly strengthen the grip of joint;
3, in the test of firmness and pull-off force far above national standard requirement;
4, mounting material cost and the cost of labor of joint is reduced;
5, reduce resistance, reduce temperature rise, improve installation effectiveness, reduce energy consumption, environmental protection.
Claims (6)
1. the crimping structure of an aluminium alloy cable and albronze terminal, the front end of albronze terminal is the copperhead with bolt hole, copperhead end is connected with copperhead facade, copperhead facade is connected with the wire barrel of columniform aluminum alloy material with copper cylindrical rod, wire barrel has the wiring hole for access aluminium alloy cable, the conductor of aluminium alloy cable inserts in wiring hole, it is characterized in that: wire barrel outer wall has the pressure contact portion of one or more hexagon cylinder formula, each pressure contact portion has a hole point face with depression at least; Conductor and wire barrel are connected due to the distortion of wire barrel in pressure contact portion position.
2. the crimping structure of a kind of aluminium alloy cable as claimed in claim 1 and albronze terminal, is characterized in that: the vertical section of the hole point of described depression is trapezoidal or cone-shaped.
3. the crimping structure of a kind of aluminium alloy cable as claimed in claim 1 and albronze terminal, is characterized in that: on each pressure contact portion, have two hole points, and two hole points are positioned on two relative faces of pressure contact portion.
4. the crimping structure of a kind of aluminium alloy cable as claimed in claim 1 and albronze terminal, is characterized in that: the rearward end of wire barrel is 3-5mm to the distance at the edge of the connection box for motor corresponding with it.
5. the crimping structure of a kind of aluminium alloy cable as claimed in claim 1 and albronze terminal, is characterized in that: the upper plane of copperhead and lower plane are the whole plane structure without ladder; The end face of copperhead facade is 1-3MM to the distance of the outer surface of copper cylindrical rod, the side of copperhead facade and be 3-6MM to the distance of the outer surface of copper cylindrical rod.
6. a crimp for the crimping structure of aluminium alloy cable and albronze terminal, is characterized in that: comprise several hexagonal confined pressure body, and the inner surface of several hexagonal confined pressure body forms a hexagon cylinder, and at least one mask has protruding salient point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437469.1U CN204760719U (en) | 2015-06-24 | 2015-06-24 | Crimping structure and special mould of aluminum alloy cable and copper -aluminium alloy terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437469.1U CN204760719U (en) | 2015-06-24 | 2015-06-24 | Crimping structure and special mould of aluminum alloy cable and copper -aluminium alloy terminal |
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| Publication Number | Publication Date |
|---|---|
| CN204760719U true CN204760719U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520437469.1U Expired - Fee Related CN204760719U (en) | 2015-06-24 | 2015-06-24 | Crimping structure and special mould of aluminum alloy cable and copper -aluminium alloy terminal |
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| CN (1) | CN204760719U (en) |
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| CN107521437A (en) * | 2017-09-19 | 2017-12-29 | 河南天海电器有限公司 | A kind of aluminium for preventing copper aluminium galvanic corrosion and aluminium alloy electric wire harness and preparation method thereof |
| CN107947102A (en) * | 2017-12-22 | 2018-04-20 | 深圳市沃尔核材股份有限公司 | The end connection component of built-in fiber cable and connection method |
| CN108281815A (en) * | 2018-03-07 | 2018-07-13 | 金杯电工股份有限公司 | A kind of new-energy automobile application aluminium alloy harness connection structure |
| CN113258337A (en) * | 2021-05-13 | 2021-08-13 | 广州高力电缆附件有限公司 | Cable crimping pipe and crimping die and cable connector containing same |
| WO2021197422A1 (en) * | 2020-04-01 | 2021-10-07 | 吉林省中赢高科技有限公司 | Electric energy transmission aluminum part and machining process therefor |
| CN114421187A (en) * | 2022-03-07 | 2022-04-29 | 亿嘉和科技股份有限公司 | Wire harness fixing sleeve, crimping tool, crimping effect testing device and method |
| CN114744463A (en) * | 2022-05-12 | 2022-07-12 | 江苏通光强能输电线科技有限公司 | Manufacturing process of copper-aluminum transition wiring terminal with high tensile strength |
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- 2015-06-24 CN CN201520437469.1U patent/CN204760719U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107521437A (en) * | 2017-09-19 | 2017-12-29 | 河南天海电器有限公司 | A kind of aluminium for preventing copper aluminium galvanic corrosion and aluminium alloy electric wire harness and preparation method thereof |
| CN107947102A (en) * | 2017-12-22 | 2018-04-20 | 深圳市沃尔核材股份有限公司 | The end connection component of built-in fiber cable and connection method |
| CN108281815A (en) * | 2018-03-07 | 2018-07-13 | 金杯电工股份有限公司 | A kind of new-energy automobile application aluminium alloy harness connection structure |
| WO2021197422A1 (en) * | 2020-04-01 | 2021-10-07 | 吉林省中赢高科技有限公司 | Electric energy transmission aluminum part and machining process therefor |
| US11978990B2 (en) | 2020-04-01 | 2024-05-07 | Jilin Zhong Ying High Technology Co., Ltd. | Electric energy transmission aluminum part and machining process therefor |
| CN113258337A (en) * | 2021-05-13 | 2021-08-13 | 广州高力电缆附件有限公司 | Cable crimping pipe and crimping die and cable connector containing same |
| CN113258337B (en) * | 2021-05-13 | 2022-07-12 | 广州高力电缆附件有限公司 | Cable crimping pipe and crimping die and cable connector containing same |
| CN114421187A (en) * | 2022-03-07 | 2022-04-29 | 亿嘉和科技股份有限公司 | Wire harness fixing sleeve, crimping tool, crimping effect testing device and method |
| CN114744463A (en) * | 2022-05-12 | 2022-07-12 | 江苏通光强能输电线科技有限公司 | Manufacturing process of copper-aluminum transition wiring terminal with high tensile strength |
| CN114744463B (en) * | 2022-05-12 | 2023-12-15 | 江苏通光强能输电线科技有限公司 | Manufacturing process of copper-aluminum transition wiring terminal with high tensile strength |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160816 Address after: Siming District of Xiamen City, Fujian province 361000 lianqianxi No. 2 tenth G Patentee after: Xiamen Super Power Technology Co., Ltd. Address before: Linhu Hong Xin Dian Zhen Xiangan District of Xiamen City, Fujian Province, a 361000 Building No. 2 room 402 (first Lingxiang International) Patentee before: Song Guomin |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 Termination date: 20210624 |