CN217215128U - Copper-aluminum branching connection structure - Google Patents
Copper-aluminum branching connection structure Download PDFInfo
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- CN217215128U CN217215128U CN202122963574.7U CN202122963574U CN217215128U CN 217215128 U CN217215128 U CN 217215128U CN 202122963574 U CN202122963574 U CN 202122963574U CN 217215128 U CN217215128 U CN 217215128U
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- sleeve
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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
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/01—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the form or arrangement of the conductive interconnection between the connecting locations
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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
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
- H01R11/07—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being of the same type but different sizes
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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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- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
The utility model discloses a copper aluminium separated time connection structure, include: the connecting piece, first sleeve and second sleeve, the connecting piece includes the fixed part, and the fixed part contains first stationary plane and second stationary plane, connects first sleeve and second sleeve respectively, and the material of first sleeve or second sleeve at least one contains aluminium. The first sleeve and the second sleeve of the utility model are connected with the fixed end by friction welding, so that the aluminum wire can be connected with the copper wire or the aluminum wire or the copper terminal according to different production conditions and product requirements, which is more convenient; and the connection of the aluminum lead and other material leads or terminals can be completed in a short time without newly increasing or designing a connecting piece.
Description
Technical Field
The utility model relates to a cable connection field, more specifically relates to a copper aluminium separated time connection structure.
Background
The terminals of electrical devices, especially automobiles, trains, airplanes, mechanical equipment, power grids and the like are usually made of copper materials, aluminum is the most common cable material due to the advantages of easy availability, light weight and the like, but because the direct electrode potentials of copper and aluminum are greatly different, galvanic reaction is easy to generate when the aluminum wire is directly connected with the copper connecting end, so that the aluminum wire is subjected to electrochemical corrosion, safety accidents are easily caused when the electrical devices run for a long time, are overloaded or are short-circuited, especially in some application scenes, the aluminum wire and the copper wire need to be connected, the wires cannot be directly connected, and a switching structure is needed to connect the aluminum wire and the copper wire in series. Therefore, a connection structure is urgently needed in the field of cable connection, which can connect an aluminum conductor with a copper conductor or with an aluminum conductor or with a copper terminal.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art not enough, provide a copper aluminium separated time connection structure, include: connecting piece, first sleeve and second sleeve, the connecting piece includes the fixed part, the fixed part contains first stationary plane and second stationary plane, connects respectively first sleeve with the second sleeve, first sleeve or the material of at least one of second sleeve contains aluminium.
Optionally, the connecting piece further comprises a connecting portion, and the connecting portion is of a sheet structure.
Optionally, the fixing portion is a sheet structure, and includes the first fixing surface and the second fixing surface that are disposed opposite to each other, and a side surface adjacent to the first fixing surface and the second fixing surface, and the connecting portion is connected to the side surface.
Optionally, the fixing portion is a columnar structure, and includes the first fixing surface and the second fixing surface that are arranged oppositely, and a side surface adjacent to the first fixing surface and the second fixing surface, and the connecting portion is connected to the side surface.
Optionally, the first fixing surface and the second fixing surface are parallel or at a predetermined angle.
Optionally, an included angle between the first fixing surface and the second fixing surface is 0-90 °.
Optionally, the plane of the connecting portion is perpendicular to the axial direction of the first sleeve or the second sleeve.
Optionally, the plane of the connection portion is parallel to the axial direction of the first sleeve or the second sleeve.
Optionally, the fixing device further comprises a bending part, two ends of the bending part are respectively connected with the connecting part and the fixing part, and the connecting part and the fixing part are in a preset angle in the axial direction.
Optionally, an included angle between the connecting portion and the axial direction of the fixing portion is 45 ° to 180 °.
Optionally, the connecting portion is provided with a mounting hole for connecting with an electric device.
Optionally, one end of the first sleeve, which is close to the fixing portion, is a closed structure, and a radial diameter of the first sleeve, which is close to the fixing portion, is smaller than a radial diameter of the first sleeve, which is far from the fixing portion; one end, close to the fixed part, of the second sleeve is of a closed structure, and the radial diameter, close to the fixed part, of the second sleeve is smaller than the radial diameter, far away from the fixed part, of the second sleeve.
Optionally, the minimum inner diameter of the first sleeve is less than or equal to the minimum inner diameter of the second sleeve.
Optionally, the first sleeve and the second sleeve are fixed to the first fixing surface and the second fixing surface respectively by means of friction welding.
Optionally, a plating layer is at least partially disposed on a surface of the connection portion, and a material of the plating layer includes one or more of nickel, cadmium, manganese, zirconium, cobalt, tin, titanium, chromium, gold, silver, aluminum, zinc, tin-lead alloy, silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver, and silver-gold-zirconium alloy.
Optionally, the connecting portion and the fixing portion are integrally formed.
Compared with the prior art, the beneficial effects of the utility model reside in that: at least one of the first sleeve and the second sleeve is made of aluminum and is connected with the fixed end in a friction welding mode, so that an aluminum lead and a copper lead or the aluminum lead and the aluminum lead or the aluminum lead and a copper terminal can be connected conveniently according to different production conditions and product requirements; the minimum inner diameters of the first sleeve and the second sleeve are not equal, and the first sleeve and the second sleeve can be respectively connected with wires with different outer diameters; and the connection between the aluminum wire and the wire made of other materials can be completed in a short time without newly increasing or designing a connecting piece.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a connection structure of a first embodiment of the present invention;
fig. 2 is a schematic view of a connection structure of a second embodiment of the present invention;
fig. 3 is a schematic view of a connection structure according to a third embodiment of the present invention;
fig. 4 is a schematic view of a connection structure according to a fourth embodiment of the present invention;
fig. 5 is a schematic view of a connection structure according to a fifth embodiment of the present invention, wherein fig. 5(b) is a cross-sectional view taken along a line a-a in fig. 5 (a);
fig. 6 is a schematic view showing a connection structure according to a sixth embodiment of the present invention, wherein fig. 6(b) is a cross-sectional view taken along line a-a of fig. 6 (a);
fig. 7 is a schematic view of a connection structure according to a seventh embodiment of the present invention;
fig. 8 is a schematic view of a connection structure according to an eighth embodiment of the present invention;
fig. 9 is a schematic view of a connection structure according to a ninth embodiment of the present invention.
The figures are labeled as follows:
11. a connecting portion; 111. mounting holes; 112. a bending section; 12. a fixed part; 13. a first sleeve; 14. a second sleeve; 15. a wire core; 16. a cable; 17. a first fixing surface; 18. a second fixing surface.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of parts and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The utility model provides a copper aluminium separated time connection structure, as shown in fig. 1 ~ 9, include: the connecting piece, first sleeve 13 and second sleeve 14, the connecting piece includes fixed part 12, and fixed part 12 includes first stationary plane 17 and second stationary plane 18, connects first sleeve 13 and second sleeve 14 respectively, and the material of at least one of first sleeve 13 or second sleeve 14 contains aluminium. The first sleeve 13 and the second sleeve 14 of the utility model are connected with the fixed end by friction welding, so that the aluminum conductor can be connected with the copper conductor or the aluminum conductor or the copper terminal according to different production conditions and product requirements, which is more convenient; and the connection between the aluminum wire and the wire made of other materials can be completed in a short time without newly increasing or designing a connecting piece.
In some embodiments, the connector further comprises a connecting portion 11, and the connecting portion 11 is a sheet structure. The connecting part 11 can be used for connecting the copper-aluminum branching connecting structure with other electrical appliances.
In some embodiments, the fixing portion 12 is a sheet-like structure, as shown in fig. 1, and includes a first fixing surface 17 and a second fixing surface 18 disposed opposite to each other, and a side surface adjacent to the first fixing surface 17 and the second fixing surface 18, and the connecting portion 11 is connected to the side surface. The first fastening surface 17 is connected to the first sleeve 13 and the second fastening surface 18 is connected to the second sleeve 14.
In some embodiments, the fixing portion 12 is a columnar structure including a first fixing surface 17 and a second fixing surface 18 disposed opposite to each other, and a side surface adjacent to the first fixing surface 17 and the second fixing surface 18, and the connecting portion 11 is connected to the side surface. Specifically, the connecting portion 11 may be disposed in the middle of the side surface of the fixing portion 12, as shown in fig. 2, or may be disposed at one end of the side surface of the fixing portion 12, as shown in fig. 3, specifically, according to the requirement during assembly.
In some embodiments, the first fixing surface 17 and the second fixing surface 18 are parallel or at a predetermined angle. According to the actual application requirement, the angle setting between the first fixing surface 17 and the second fixing surface 18 is adjusted to make the correspondingly connected first sleeve 13 and second sleeve 14 parallel or in a predetermined angle, as shown in fig. 4, so as to meet the requirement of assembling the wire harness.
In some embodiments, the angle between the first and second mounting surfaces 17, 18 is between 0 ° and 90 °. Through setting up different contained angles, can make the cable that both ends are fixed respectively present different angles. When the included angle is 0 degree, the first fixing surface 17 and the second fixing surface 18 are parallel to each other, and at the moment, the first sleeve 13 and the second sleeve 14 are parallel; the included angle is 0-90 degrees, and the first sleeve 13 and the second sleeve 14 can be connected in different angles; when the included angle is 90 °, the first fixing surface 17 and the second fixing surface 18 are perpendicular to each other, and the first sleeve 13 and the second sleeve 14 are perpendicular to each other for connecting the cables perpendicular to each other, respectively.
In some embodiments, the plane of the connecting portion 11 is perpendicular to the axial direction of the first sleeve 13 or the second sleeve 14, as shown in fig. 6.
In some embodiments, the plane of the connection portion 11 is parallel to the axial direction of the first sleeve 13 or the second sleeve 14, as shown in fig. 5. In a specific implementation, the arrangement direction of the connection portion 11 may be adjusted according to the installation direction of the cable.
In some embodiments, the plane of the connection portion 11 and the axial direction of the first sleeve 13 or the second sleeve 14 may be any predetermined angle between 0 ° and 90 °.
In some embodiments, a bending portion 112 is further included, as shown in fig. 7, two ends of the bending portion 112 respectively connect the connecting portion 11 and the fixing portion 12, and the connecting portion 11 and the fixing portion 12 form a predetermined angle in the axial direction.
In some embodiments, the angle between the connecting portion 11 and the axial direction of the fixing portion 12 is 45 ° to 180 °. When the included angle is smaller than 45 °, the connection portion 11 approaches the bending portion 112, which is not convenient for connecting the connection portion 11 with an electrical device, and the included angle between the axial direction of the connection portion 11 and the axial direction of the fixing portion 12 is at most 180 °, that is, the connection portion 11 is parallel to the fixing portion 12.
In some embodiments, the connecting portion 11 is provided with a mounting hole 111 for connecting with an electric device. Specifically, the connection structure may be connected to the electric device through the mounting hole 111 using a bolt structure.
In some embodiments, one end of the first sleeve 13 close to the fixed portion 12 is a closed structure, and a radial diameter of the first sleeve 13 close to the fixed portion 12 is smaller than a radial diameter far from the fixed portion 12; the end of the second sleeve 14 close to the fixed part 12 is a closed structure, and the diameter of the second sleeve 14 close to the fixed part 12 is smaller than that far from the fixed part 12. Specifically, when being fixed in first sleeve 13 with the cable, strip 15 parts of sinle silk setting of surface insulation layer in the less department of 13 radial diameters of first sleeve, inside back of cable and sinle silk assembly to first sleeve uses the press-connection machine, with first sleeve and cable and sinle silk punching press as an organic whole, the mode that adopts the crimping can improve the volume productivity, utilizes automatic press-connection machine can be a large amount of products of the stable quality of manufacturing rapidly.
In some embodiments, the minimum inner diameter of the first sleeve 13 is less than or equal to the minimum inner diameter of the second sleeve 14, as shown in fig. 8 and 9. In the embodiment, cables with different diameters are required to transmit current due to different load powers, and the cables with different diameters can be connected by adjusting the minimum inner diameters of the first sleeve 13 and the second sleeve 14, so that the performance and assembly requirements are met.
In some embodiments, the connecting portion 11 and the fixing portion 12 are integrally formed, so that the manufacturing process is simplified, the stability of the connecting member is improved, and the durability is enhanced.
In some embodiments, the first sleeve 13 and the second sleeve 14 are fixed to the first fixing surface 17 and the second fixing surface 18, respectively, by means of friction welding. 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.
In some embodiments, the surface of the connecting portion 11 is at least partially provided with a plating layer, and the material of the plating layer contains one or more of nickel, cadmium, manganese, zirconium, cobalt, tin, titanium, chromium, gold, silver, aluminum, zinc, tin-lead alloy, silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver, and silver-gold-zirconium alloy. The surface of the connecting part 11 is provided with the plating layer, so that the corrosion resistance of the connecting part 11 can be improved, the conductivity can be improved, the service life of the connecting part 11 can be prolonged, and frequent replacement and maintenance are avoided.
In some embodiments, the material of the fixing portion 12 includes copper to obtain better conductivity, and preferably, the material of the fixing portion 12 is tellurium copper alloy, so that the fixing portion 12 has good conductivity and easy machinability, the electrical property can be ensured, the processability can be improved, and meanwhile, the elasticity of the tellurium copper alloy is also excellent.
In some embodiments, the surface of the fixing portion 12 is plated to improve corrosion resistance, conductivity, and service life of the fixing portion 12.
Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (16)
1. A copper-aluminum branching connection structure is characterized by comprising: connecting piece, first sleeve and second sleeve, the connecting piece includes the fixed part, the fixed part contains first stationary plane and second stationary plane, connects respectively first sleeve with the second sleeve, first sleeve or the material of at least one of second sleeve contains aluminium.
2. The connection structure according to claim 1, wherein the connector further comprises a connection portion, and the connection portion is a sheet-like structure.
3. The connecting structure according to claim 2, wherein the fixing portion is a sheet-like structure including the first fixing surface and the second fixing surface which are oppositely disposed, and a side surface adjacent to the first fixing surface and the second fixing surface, and the connecting portion is connected to the side surface.
4. The connecting structure according to claim 2, wherein the fixing portion is a columnar structure including the first fixing surface and the second fixing surface which are disposed opposite to each other, and a side surface adjacent to the first fixing surface and the second fixing surface, and the connecting portion is connected to the side surface.
5. The connecting structure according to claim 1, wherein the first fixing surface and the second fixing surface are parallel or at a predetermined angle.
6. The connecting structure according to claim 5, wherein an angle between the first fixing surface and the second fixing surface is 0 ° to 90 °.
7. The connection structure according to claim 2, wherein a plane of the connection portion is perpendicular to an axial direction of the first sleeve or the second sleeve.
8. The connection structure according to claim 2, wherein a plane of the connection portion is parallel to an axial direction of the first sleeve or the second sleeve.
9. The connecting structure according to claim 2, further comprising a bending portion, wherein two ends of the bending portion are respectively connected to the connecting portion and the fixing portion, and the connecting portion and the fixing portion form a predetermined angle in an axial direction.
10. A connection according to claim 9, wherein the angle between the connecting portion and the axial direction of the fixing portion is 45 ° to 180 °.
11. The connecting structure according to claim 2, wherein the connecting portion is provided with a mounting hole for connecting with an electric device.
12. The connection according to claim 1, wherein an end of the first sleeve near the fixing portion is a closed structure, and a radial diameter of the first sleeve near the fixing portion is smaller than a radial diameter of the first sleeve far from the fixing portion; one end, close to the fixing portion, of the second sleeve is of a closed structure, and the radial diameter, close to the fixing portion, of the second sleeve is smaller than the radial diameter, far away from the fixing portion, of the second sleeve.
13. The connection according to claim 1, wherein a minimum inner diameter of the first sleeve is equal to or less than a minimum inner diameter of the second sleeve.
14. The connection according to claim 1, wherein the first sleeve and the second sleeve are fixed to the first fixing surface and the second fixing surface, respectively, by friction welding.
15. The connection structure according to claim 2, wherein a plating layer is provided on at least a part of the surface of the connection portion, and the plating layer is made of one of nickel, cadmium, manganese, zirconium, cobalt, tin, titanium, chromium, gold, silver, aluminum, zinc, tin-lead alloy, silver-antimony alloy, palladium-nickel alloy, graphite silver, graphene silver, or silver-gold-zirconium alloy.
16. The connecting structure according to claim 2, wherein the connecting portion is integrally formed with the fixing portion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122963574.7U CN217215128U (en) | 2021-11-30 | 2021-11-30 | Copper-aluminum branching connection structure |
| PCT/CN2022/131622 WO2023098457A1 (en) | 2021-11-30 | 2022-11-14 | Copper-aluminum branching connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122963574.7U CN217215128U (en) | 2021-11-30 | 2021-11-30 | Copper-aluminum branching connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217215128U true CN217215128U (en) | 2022-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122963574.7U Active CN217215128U (en) | 2021-11-30 | 2021-11-30 | Copper-aluminum branching connection structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN217215128U (en) |
| WO (1) | WO2023098457A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023098457A1 (en) * | 2021-11-30 | 2023-06-08 | 长春捷翼汽车科技股份有限公司 | Copper-aluminum branching connection structure |
| WO2024149194A1 (en) * | 2023-01-09 | 2024-07-18 | 长春捷翼汽车科技股份有限公司 | Electrical connection structure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202534805U (en) * | 2012-05-11 | 2012-11-14 | 湖州电力局 | Intra-conduit threaded wire clamp |
| JP6302345B2 (en) * | 2014-04-28 | 2018-03-28 | 矢崎総業株式会社 | Terminal connection structure and terminal connection method |
| CN204464504U (en) * | 2015-01-20 | 2015-07-08 | 安徽省惠尔电气有限公司 | Cable connection terminal |
| CN204348943U (en) * | 2015-02-07 | 2015-05-20 | 国家电网公司 | A kind of wire clamp of distribution line |
| CN206116660U (en) * | 2016-10-28 | 2017-04-19 | 乐清市八达光电科技股份有限公司 | Copper -aluminum wiring terminal |
| CN217215128U (en) * | 2021-11-30 | 2022-08-16 | 长春捷翼汽车零部件有限公司 | Copper-aluminum branching connection structure |
-
2021
- 2021-11-30 CN CN202122963574.7U patent/CN217215128U/en active Active
-
2022
- 2022-11-14 WO PCT/CN2022/131622 patent/WO2023098457A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023098457A1 (en) * | 2021-11-30 | 2023-06-08 | 长春捷翼汽车科技股份有限公司 | Copper-aluminum branching connection structure |
| WO2024149194A1 (en) * | 2023-01-09 | 2024-07-18 | 长春捷翼汽车科技股份有限公司 | Electrical connection structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023098457A1 (en) | 2023-06-08 |
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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. |