CN217823277U - Connecting structure for electric energy transmission - Google Patents
Connecting structure for electric energy transmission Download PDFInfo
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- CN217823277U CN217823277U CN202221114609.8U CN202221114609U CN217823277U CN 217823277 U CN217823277 U CN 217823277U CN 202221114609 U CN202221114609 U CN 202221114609U CN 217823277 U CN217823277 U CN 217823277U
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- copper
- composite terminal
- aluminum
- aluminum composite
- connection portion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a connection structure for power transmission, including copper aluminium composite terminal, flexonics portion and rigid connection portion, the first end of copper aluminium composite terminal comprises the copper aluminium composite substrate, the copper aluminium composite substrate includes the copper body, the both sides of the thickness direction of copper body set up the aluminium sheet layer, the first end of copper aluminium composite terminal with the first end of rigid connection portion passes through flexonics portion connects. The copper-aluminum composite terminal and the rigid connecting part of the utility model are connected through the flexible connecting part, so that the weight of the terminal can be greatly reduced under the condition of ensuring the same current-carrying capacity, the cost is saved, and the light weight is realized; the damage to the connector and the electric appliance connected with the whole vehicle in the vibration process can be avoided.
Description
Technical Field
The utility model relates to a technical field is connected to the car electricity, especially relates to a connection structure for electric energy transmission.
Background
At present, in the connection system of whole car and the pencil connection of control system, the assembly methods of spiro union are mostly adopted, in OEM (Original Equipment Manufacturer, collaborative production) whole car factory, the connection position of distribution box, fuse box or electrical apparatus is mostly spiro union with the pencil in the way that the copper material increases the metallic coating, the copper terminal welds with the aluminium wire, again with distribution box, fuse box or electrical apparatus carry out the spiro union assembly, the terminal is mainly the copper material, the cost of terminal is higher, the aluminium connection that adopts at whole car high-voltage connection system is aluminium bandlet or aluminium bar, the rigidity of conductor itself is higher, can produce resonant phenomenon, lead to damaging connector or electrical apparatus.
Therefore, the inventor provides a connecting structure for electric energy transmission by virtue of experience and practice of related industries for many years, so as to overcome the defects of the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a connection structure for electric energy transmission, overcome the problem that exists among the prior art, the utility model discloses a copper aluminium composite terminal and rigid connection portion pass through flexible connection portion fixed connection, can guarantee under the condition of the same current-carrying capacity, the weight of very big lightening terminal itself, practice thrift the cost, realize the lightweight; the damage to the connector and the electric appliance connected with the whole vehicle in the vibration process can be avoided.
The utility model aims at realizing like this, a connection structure for power transmission, including copper aluminium composite terminal, flexonics portion and rigid connection portion, the first end of copper aluminium composite terminal comprises the compound substrate of copper aluminium, the compound substrate of copper aluminium includes the copper body, the both sides of the thickness direction of copper body set up the aluminium sheet layer, the first end of copper aluminium composite terminal with the first end of rigid connection portion passes through flexonics portion connects.
The utility model discloses an in a preferred embodiment, the second end of copper aluminium composite terminal sets up connect the via hole, connect the via hole and link up in the setting of copper body.
In a preferred embodiment of the present invention, each surface of the copper-aluminum composite terminal is at least partially provided with a metal protection coating.
In a preferred embodiment of the present invention, the thickness of the copper-aluminum composite terminal is greater than or equal to 0.1mm.
In a preferred embodiment of the present invention, the volume of the copper plate body is greater than or equal to 50% of the volume of the copper-aluminum composite terminal.
In a preferred embodiment of the present invention, the cross section of the copper-aluminum composite terminal is rectangular, and the width of the copper-aluminum composite terminal is greater than or equal to 1mm.
In a preferred embodiment of the present invention, the flexible connecting portion is a woven aluminum flat belt or a multi-layer sheet-stacked flexible aluminum flat belt or a multi-core wire winding twisted aluminum flat belt.
In a preferred embodiment of the present invention, the rigid connection portion is an aluminum flat band.
In a preferred embodiment of the present invention, the first end of the flexible connecting portion is welded to the second end of the copper-aluminum composite terminal, and the second end of the flexible connecting portion is welded to the first end of the rigid connecting portion.
From top to bottom, the utility model provides a connection structure for copper line transmission has following beneficial effect:
in the connection structure for copper wire transmission of the utility model, the first end of the copper-aluminum composite terminal is composed of the copper-aluminum composite base material, thus avoiding the galvanic cell reaction when the copper and the aluminum are connected, and compared with the aluminum terminal, the connection structure can not only avoid the potential difference corrosion generated to the copper piece when in connection, but also avoid the creep generated by long-term fatigue; the raw material is manufactured in a solid-liquid metallurgical mode, and the combination position of copper and aluminum is similar to a straight line; under the condition of the same volume, the copper-aluminum composite terminal is lighter than a copper terminal, so that the weight of the terminal can be greatly reduced under the condition of ensuring the same current-carrying capacity, the cost is saved, and the light weight is realized;
the second end of the copper-aluminum composite terminal is provided with a connecting through hole for realizing connection with other parts in a screw connection mode, so that electrochemical corrosion caused by screw connection of the aluminum terminal and a copper part is avoided, and long-term fatigue creep is also avoided; the copper-aluminum composite terminal is manufactured by a copper-aluminum composite base material or a coiled material in a stamping mode, and a finished product or a semi-finished product is stamped by a multi-station progressive die, so that high-speed automatic stamping of the product is realized.
The utility model discloses a copper aluminium composite terminal and rigid connection portion pass through flexible connection portion fixed connection, can avoid whole car to cause the harm to the connector of being connected with it and with electrical apparatus at the vibrations in-process.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
FIG. 1: do the utility model discloses a connection structure's front view for electric energy transmission.
FIG. 2 is a schematic diagram: do the utility model discloses a top view for electric energy transmission's connection structure.
FIG. 3: is a schematic diagram of the copper-aluminum composite terminal of the utility model.
FIG. 4 is a schematic view of: is a cross-sectional view of the copper-aluminum composite terminal of the utility model.
FIG. 5: do the utility model discloses a schematic diagram of flexonics portion.
FIG. 6: is the schematic diagram of the rigid connection part of the utility model.
In the figure:
100. a connection structure for copper wire transmission;
1. copper-aluminum composite terminals; 11. a copper plate body; 12. an aluminum plate layer; 13. a connecting through hole;
2. a flexible connection;
3. a rigid connection.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
The specific embodiments of the present invention described herein are provided for illustrative purposes only and should not be construed as limiting the invention in any way. Given the teachings of the present invention, the skilled person can conceive of any possible variants based on the invention, which should all be considered as falling within the scope of the invention. It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, mechanical or electrical connections, communications between two elements, direct connections, indirect connections through intermediaries, and the like. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Fig. 1 to fig. 6 show, the utility model provides a connection structure 100 for copper line transmission, including copper aluminium composite terminal 1, flexonics portion 2 and rigid connection portion 3, the first end of copper aluminium composite terminal 1 comprises the compound substrate of copper aluminium, and the compound substrate of copper aluminium includes copper body 11, and the both sides of 11 directions of thickness of copper body (being the top, on the wall of end both sides promptly) set up aluminium sheet layer 12, and the second end of copper aluminium composite terminal 1 and the first end of rigid connection portion 3 are passed through flexonics portion 2 and are connected.
In the connecting structure for copper wire transmission, the first end of the copper-aluminum composite terminal is composed of the copper-aluminum composite base material, thus avoiding the galvanic cell reaction when the copper and the aluminum are connected, and compared with the aluminum terminal, the connecting structure can avoid the potential difference corrosion to the copper piece when in connection and the creep caused by long-term fatigue; under the condition of the same volume, the copper-aluminum composite terminal is lighter than a copper terminal, so that the weight of the terminal can be greatly reduced under the condition of ensuring the same current-carrying capacity, the cost is saved, and the light weight is realized; the utility model discloses a copper aluminium composite terminal and rigid connection portion pass through flexible connection portion fixed connection, can avoid whole car to cause the harm to the connector of being connected with it and with electrical apparatus at the vibrations in-process.
As shown in fig. 3 and 4, the copper-aluminum composite terminal 1 includes a copper plate body 11, an aluminum plate layer 12 is disposed in a thickness direction of a first end of the copper plate body 11, and the first end of the copper plate body 11 is fixedly connected to the flexible connecting portion 2. At the first end of the copper plate body 11, aluminum is compounded with the aluminum plate layer 12 in a liquid metallurgy mode to generate a copper aluminum compound, and a copper aluminum composite base material is formed. The raw material is manufactured in a solid-liquid metallurgical mode, and the combination position of copper and aluminum is similar to a straight line.
Stamping in the form of a sheet or a coil, during the stamping production: at least one punching step or at least one trimming step or at least one shaping step produces a semi-finished product or a finished product.
The aluminum material and the copper material can be welded by one or more of resistance welding, friction welding, ultrasonic welding, arc welding, laser welding, electron beam welding, pressure diffusion welding and magnetic induction welding to form the copper-aluminum composite base material.
The resistance welding method is a method of welding by using a strong current to pass through a contact point between an electrode and a workpiece and generating heat by a contact resistance.
The friction welding method is a method of welding by plastically deforming a workpiece under pressure using heat generated by friction of a contact surface of the workpiece as a heat source.
The ultrasonic welding method is a method in which high-frequency vibration waves are transmitted to the surfaces of two objects to be welded, and the surfaces of the two objects are rubbed against each other under pressure to form fusion between the molecular layers.
The arc welding method is a method of connecting metals by converting electric energy into thermal energy and mechanical energy required for welding using an electric arc as a heat source and utilizing a physical phenomenon of air discharge, and the main methods include shielded metal arc welding, submerged arc welding, gas shielded welding, and the like.
The laser welding method is an efficient and precise welding method using a laser beam with high energy density as a heat source.
The friction welding method is a method of welding by plastically deforming a workpiece under pressure using heat generated by friction of a contact surface of the workpiece as a heat source.
The electron beam welding mode is that accelerated and focused electron beams are used to bombard the welding surface in vacuum or non-vacuum to melt the workpiece to be welded for welding.
The pressure welding method is a method of applying pressure to a workpiece to bring the joining surfaces into close contact with each other to generate a certain plastic deformation, thereby completing welding.
The magnetic induction welding mode is that two workpieces to be welded produce instantaneous high-speed collision under the action of strong pulse magnetic field, and the surface layer of the material makes the atoms of the two materials meet in the interatomic distance under the action of very high pressure wave, so that a stable metallurgical bonding is formed on the interface. Is one type of solid state cold welding that can weld together conductive metals that may or may not have similar properties.
Further, as shown in fig. 3 and 4, a connecting through hole 13 is provided at the second end of the copper-aluminum composite terminal 1, and the connecting through hole 13 is provided to penetrate through the copper plate body 11. The second end of the copper-aluminum composite terminal 1 is provided with a connecting through hole 13 for realizing connection with other parts in a screw connection mode, so that electrochemical corrosion caused by screw connection of the aluminum terminal and a copper part is avoided, and long-term fatigue creep is also avoided. The copper-aluminum composite terminal 1 is processed by stamping, the production tact can be controlled within 3S, and the precision can meet the GB/T1804-2000-m level or above. The utility model discloses a mode of punching press realizes the manufacturing of copper aluminium composite terminal 1, upgrades the mould through the multistation, and the high-speed automatic punching press of product is realized to the punching press processing play finished product or semi-manufactured goods.
Further, a metal protective coating can be arranged on each surface of the copper-aluminum composite terminal to realize surface protection, and a metal protective coating can also be arranged on the local part of the copper-aluminum composite terminal to realize surface protection. The coating material comprises one of gold, silver, nickel, tin, zinc, tin-lead alloy, silver-antimony alloy, palladium-nickel alloy, graphite-silver, graphene-silver and silver-gold-zirconium alloy.
The plating layer is arranged in an electroplating mode, a chemical plating mode, a magnetron sputtering mode or a vacuum plating mode. The electroplating method is a process of plating a thin layer of other metals or alloys on the surface of a metal by utilizing the electrolysis principle.
The chemical plating method is a deposition process for generating metal through controllable oxidation-reduction reaction under the catalytic action of the metal.
The magnetron sputtering method is characterized in that electrons spirally run near the surface of a target by utilizing the interaction of a magnetic field and an electric field, so that the probability that the electrons collide with argon gas to generate ions is increased, and the generated ions collide with the surface of the target under the action of the electric field so as to sputter out a target material.
The vacuum plating method is to deposit various metal and non-metal films on the surface of the part by distillation or sputtering under vacuum condition.
In a preferred embodiment, the coating comprises a base layer and a surface layer. The plating layer adopts a multi-layer plating method. After the copper-aluminum composite terminal is processed, a plurality of gaps and holes still exist under the surface microcosmic interface of the copper-aluminum composite terminal, and the gaps and the holes are the largest reasons for abrasion and corrosion of the copper-aluminum composite terminal in the using process. In the embodiment, the bottom layer is plated on the surface of the copper-aluminum composite terminal, gaps and holes on the surface are filled, so that the surface of the copper-aluminum composite terminal is smooth and free of holes, the surface layer is plated, the copper-aluminum composite terminal can be combined more firmly and can be smooth, gaps and holes are not formed in the surface of the plating layer, the wear resistance, the corrosion resistance and the electrical property of the copper-aluminum composite terminal are better, and the service life of the copper-aluminum composite terminal is greatly prolonged.
The bottom layer material contains one or more of gold, silver, nickel, tin-lead alloy and zinc; the surface material contains one of gold, silver, nickel, tin-lead alloy, silver-antimony alloy, palladium-nickel alloy, graphite-silver, graphene-silver and silver-gold-zirconium alloy.
In one embodiment, the thickness of the underlayer is between 0.01 μm and 12 μm. Preferably, the thickness of the primer layer is 0.1 μm to 9 μm.
In another embodiment, the skin layer has a thickness of 0.5 μm to 50 μm. Preferably, the thickness of the surface layer is 1 to 35 μm.
Further, the thickness of the copper-aluminum composite terminal 1 is greater than or equal to 0.1mm. The copper-aluminum composite terminal 1 has an excessively small thickness, is difficult to process, has many limitations in practical application, and has no practical significance.
Further, the volume of the copper plate body 11 is 50% or more of the volume of the copper-aluminum composite terminal 1. On the premise of ensuring the conductivity of the copper-aluminum composite terminal 1, the larger the volume of the copper plate body 11 in the copper-aluminum composite terminal 1 is, the better the conductivity of the copper-aluminum composite terminal is. Preferably, in a specific embodiment of the present invention, the copper plate body 11 accounts for 90% of the total.
Further, the cross section of the copper-aluminum composite terminal 1 is rectangular, and the width of the copper-aluminum composite terminal 1 is larger than or equal to 1mm. The copper-aluminum composite terminal 1 has an excessively small thickness, is difficult to process, has many limitations in practical application, and has no practical significance.
Further, as shown in fig. 1, 2, and 5, the flexible connecting portion 2 is an aluminum braided strap, and the aluminum braided strap is formed by a braiding process using 2 or more copper wires.
The flexible connecting part 2 can also be a flexible aluminum flat belt formed by overlapping a plurality of layers of thin plates or an aluminum flat belt formed by winding and twisting a multi-core wire, wherein the thin plates are soft in texture and easy to deform and are suitable for being used as the flexible connecting part 2, and the overlapping of the plurality of layers of thin plates can ensure the flexibility and the electrifying efficiency; the multi-core wire has flexibility, is easy to bend and has excellent conductivity. The two ends of the flexible connecting part 2 made of the multi-core wire can be provided with planes for welding in different directions according to requirements. Because the flexible connecting part 2 conducts larger current, larger electromagnetic interference is generated around, and in order to avoid the influence of the electromagnetic interference on electric devices of automobiles, the flexible connecting part 2 can be manufactured in a mode that non-shielding multi-core wires are mutually wound or twisted, so that the electromagnetic interference generated by the flexible connecting part 2 is reduced. The electromagnetic interference generated by the mutually twisted flexible connecting parts 2 can be mutually counteracted, so that the electric device of the automobile is not influenced any more, the use of a shielding layer is reduced, the processing and material cost is reduced, and the cost of the automobile is reduced.
Further, as shown in fig. 1, 2, and 6, the rigid connection portion 3 is an aluminum flat band having a rectangular cross section, and is made of pure aluminum extruded or machined, and the content of the aluminum component is 90% or more.
Further, as shown in fig. 1 and 2, a first end of the flexible connecting portion 2 is welded and fixed to a first end of the copper-aluminum composite terminal 1, and a second end of the flexible connecting portion 2 is welded and fixed to a first end of the rigid connecting portion 3. The first end (copper-aluminum composite base material) of the copper-aluminum composite terminal 1 is welded with an aluminum braided belt; the aluminum braided strap is fixedly connected with the aluminum flat strap in a welding mode, and the whole supply of the connecting structure for aluminum wire transmission is achieved.
From top to bottom, the utility model provides a connection structure for copper line transmission has following beneficial effect:
in the connecting structure for copper wire transmission, the first end of the copper-aluminum composite terminal is composed of the copper-aluminum composite base material, thus avoiding the galvanic cell reaction when the copper and the aluminum are connected, and compared with the aluminum terminal, the connecting structure can avoid the potential difference corrosion to the copper piece when in connection and the creep caused by long-term fatigue; the raw material is manufactured in a solid-liquid metallurgy mode, and the combination position of copper and aluminum is similar to a straight line; under the condition of the same volume, the copper-aluminum composite terminal is lighter than a copper terminal, so that the weight of the terminal can be greatly reduced under the condition of ensuring the same current-carrying capacity, the cost is saved, and the light weight is realized;
the second end of the copper-aluminum composite terminal is provided with a connecting through hole for realizing connection with other parts in a screw connection mode, so that electrochemical corrosion caused by screw connection of the aluminum terminal and a copper part is avoided, and long-term fatigue creep is also avoided; the copper-aluminum composite terminal is manufactured in a stamping mode, finished products or semi-finished products are stamped and processed through a multi-station progressive die, and high-speed automatic stamping of the products is achieved.
The utility model discloses a copper aluminium composite terminal and rigid connection portion pass through flexible connection portion fixed connection, can avoid whole car to cause the harm to the connector of being connected with it and with electrical apparatus at the vibrations in-process.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any equivalent changes and modifications of the invention without departing from the spirit and principles of the invention should be considered within the scope of the invention.
Claims (9)
1. The utility model provides a connection structure for electric energy transmission, its characterized in that, includes copper aluminium composite terminal, flexible connection portion and rigid connection portion, the first end of copper aluminium composite terminal comprises the compound substrate of copper aluminium, the compound substrate of copper aluminium includes the copper body, the both sides of the thickness direction of copper body set up the aluminium sheet layer, the first end of copper aluminium composite terminal with the first end of rigid connection portion passes through flexible connection portion connects.
2. The connection structure for electric energy transmission according to claim 1, wherein a connection through hole is provided at the second end of the copper-aluminum composite terminal, and the connection through hole is provided through the copper plate body.
3. The connection structure for electric power transmission according to claim 1, wherein each surface of the copper-aluminum composite terminal is provided at least partially with a metal protective plating.
4. The connection structure for electric power transmission according to claim 1, wherein the thickness dimension of the copper-aluminum composite terminal is 0.1mm or more.
5. The connection structure for electric power transmission according to claim 1, wherein a volume of the copper plate body is 50% or more of a volume of the copper-aluminum composite terminal.
6. The connection structure for electric energy transmission according to claim 1, wherein the cross section of the copper-aluminum composite terminal is rectangular, and the width of the copper-aluminum composite terminal is greater than or equal to 1mm.
7. The connection structure for electric power transmission according to claim 1, wherein the flexible connection portion is a woven aluminum ribbon or a flexible aluminum ribbon laminated by a plurality of thin plates or a multi-core wire-wound twisted aluminum ribbon.
8. The connection structure for electric power transmission according to claim 1, wherein the rigid connection part is an aluminum flat band.
9. The connection structure for electric power transmission according to claim 1, wherein a first end of the flexible connection portion is welded to a first end of the copper-aluminum composite terminal, and a second end of the flexible connection portion is welded to a first end of the rigid connection portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221114609.8U CN217823277U (en) | 2022-05-11 | 2022-05-11 | Connecting structure for electric energy transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221114609.8U CN217823277U (en) | 2022-05-11 | 2022-05-11 | Connecting structure for electric energy transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217823277U true CN217823277U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221114609.8U Active CN217823277U (en) | 2022-05-11 | 2022-05-11 | Connecting structure for electric energy transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217823277U (en) |
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- 2022-05-11 CN CN202221114609.8U patent/CN217823277U/en active Active
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Address after: No. 957, Shunda Road, Gaoxin District, Changchun City, Jilin Province, 130000 Patentee after: Changchun Jieyi Automobile Technology Co.,Ltd. Address before: 130000 957 Shunda Road, Changchun hi tech Development Zone, Jilin Patentee before: CHANGCHUN JIEYI AUTO PARTS CO.,LTD. |