CN218414021U - Bus structure with tolerance absorption capacity - Google Patents
Bus structure with tolerance absorption capacity Download PDFInfo
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- CN218414021U CN218414021U CN202222271634.3U CN202222271634U CN218414021U CN 218414021 U CN218414021 U CN 218414021U CN 202222271634 U CN202222271634 U CN 202222271634U CN 218414021 U CN218414021 U CN 218414021U
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- bus bar
- hard
- busbar
- flexible soft
- insulating layer
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Abstract
A bus structure with tolerance absorption capacity comprises a hard bus bar, wherein the end part of the hard bus bar is conductively connected with a flexible soft bus bar, a conductor in the flexible soft bus bar is a multi-layer overlapped anticorona flat thin metal conductor, and a coated insulating layer is arranged outside the flexible soft bus bar; the insulating layer is got rid of to the tip of flexible soft female arranging, hard female row interconnect, and the electrically conductive material that the tip exposes laminates each other and connects. The flexible soft bus bar is connected with the hard bus bar by utilizing the characteristics of flexibility and large current-carrying capacity of the flexible soft bus bar, so that the defect of large rigidity after the hard bus bar is formed is overcome, and the situation that the current of a new energy automobile is continuously increased can be met; when the assembly, even there is the error in the size of arranging firmly, also can buckle through flexible soft female row and adjust, absorb the tolerance of arranging firmly through flexible soft female row, can be more light assemble, need not improve the machining precision of arranging firmly, and then reduced the processing cost.
Description
Technical Field
The utility model belongs to the technical field of the generating line, concretely relates to bus structure that possesses tolerance absorbing capacity.
Background
With the continuous increase of charging current of new energy automobiles, the adoption of a large-section solid conductor busbar as a charging bus has become a main trend of the industry. However, the solid conductor busbar (i.e. the hard busbar) has high hardness and cannot achieve the flexibility of the cable, and during the assembly of the whole vehicle, the bus cannot be assembled or the assembly is difficult due to the manufacturing tolerance of the vehicle body and the manufacturing tolerance of the hard busbar.
In view of the above circumstances, the above problems are mainly solved by improving the forming precision of the hard busbar and strictly controlling the dimensional tolerance. Some prior arts also adopt a mode of connecting the annealed copper wire and the hard busbar to improve the assembly feasibility of the product.
Because the hard bus bar needs to be pre-bent and then matched with the shape of the vehicle body and the wiring space, the product cost is increased simply by a mode of improving the forming precision of the hard bus bar under the condition that the precision of the vehicle body and other parts is certain; on the other hand, even if the molding accuracy of the hard busbar is high, the busbar may not be assembled due to the manufacturing tolerance of the vehicle body. For the mode that the annealed copper wire is connected with the hard busbar so as to improve the assembly feasibility of the product, if the current requirement of the product is high, the required annealed copper wire has a large specification, and the large-specification copper wire is difficult to bend.
SUMMERY OF THE UTILITY MODEL
For the technical problem who solves above-mentioned generating line assembly difficulty, the utility model provides a possess tolerance absorbing capacity's generating line structure.
The purpose of the utility model is to adopt the following technical scheme to realize. According to the utility model, the bus structure with tolerance absorption capacity comprises a hard bus bar, the end part of the hard bus bar is conductively connected with a flexible soft bus bar, the conductor inside the flexible soft bus bar is a multilayer overlapped corona-proof flat thin metal conductor, and the outside is a coated insulating layer; the insulating layer is got rid of to the tip of flexible soft arranging, hard female row interconnect, and the electrically conductive material laminating each other and connection that the tip exposes.
Furthermore, the flexible soft busbar insulating layer is made of any one of PVC, XLPE, XLPO, silicone rubber, polyurethane and fluoroplastic; the conductive material of the flexible soft busbar is any one of copper, aluminum, copper alloy and aluminum alloy.
Further, the surface of the flat thin metal conductor in the flexible soft busbar can be coated with any one of nickel, copper, silver and tin.
Furthermore, an insulating layer is wrapped outside the hard bus bar, and the insulating layer is made of any one of nylon, PVC, XLPE, XLPO, silicone rubber, polyurethane and fluoroplastic; the conductive material of the hard busbar is any one or more of copper, aluminum, copper alloy and aluminum alloy.
Further, the thickness of the insulating layer is 0.1mm-5mm.
Further, the cross section of the hard busbar is rectangular or circular.
Furthermore, a bending structure is arranged on the hard busbar, and the bending structure of the hard busbar with the rectangular cross section is one or more of a vertical bending structure, a horizontal bending structure and a torsional bending structure.
Furthermore, the end joint surface of the hard busbar is welded with a conductive metal layer by a magnetron sputtering method, and the conductive metal layer is made of any one of nickel, copper, silver and tin.
Furthermore, the thickness of the conductive metal layer covered on the end joint surface of the hard busbar is between 0.01mm and 1 mm.
Furthermore, the flexible soft busbar and the hard busbar are connected in a riveting mode, an ultrasonic welding mode or a bolt connection mode.
Compared with the prior art, the utility model discloses useful part lies in: the flexible soft busbar is connected with the hard busbar by utilizing the characteristics that the flexible soft busbar can be bent and has large current-carrying capacity, so that the defect of high rigidity after the hard busbar is formed is overcome, and the condition that the charging current of a new energy automobile is continuously increased can be met; when the assembly, even if the size of hard female arranging has the error, also can buckle through flexible soft female arranging and adjust, absorb the tolerance of hard female arranging through flexible soft female arranging, can be more relaxed assemble, need not improve the machining precision of hard female arranging, and then reduced the processing cost.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic view of a first embodiment of the present invention;
FIG. 2 is an enlarged view of the connection portion of FIG. 1;
FIG. 3 is an enlarged schematic view of a second connecting portion according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of a third connecting portion according to an embodiment of the present invention;
fig. 5a is a schematic view of an upright bending structure of a hard busbar according to an embodiment of the present invention;
fig. 5b is a schematic view of a flat-bent structure of a hard busbar according to an embodiment of the present invention;
fig. 5c is a schematic view of a torsional structure of a hard busbar according to an embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of a flexible bus bar according to an embodiment of the present invention.
[ reference numerals ]
1-flexible busbar, 101-flat thin metal conductor, 102-insulating layer, 2-connecting part, 201-bolt, 202-elastic gasket, 203-gasket, 204-nut, 205-rivet and 3-hard busbar.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The utility model provides an embodiment one of generating line structure that possesses tolerance absorption capacity, as shown in fig. 1-2, including flexible soft female arranging 3, hard female arranging 1 and flexible soft female arranging, hard female arranging both interconnect's connecting portion 2, flexible soft female arranging 3 is connected with hard female arranging 1 through the riveting form, and the pliability of arranging 3 with the help of flexible soft has improved the flexibility of whole generating line, has promoted the assembly nature of generating line on whole car.
The flexible busbar 3 is wrapped by an insulating layer, and the insulating layer can be made of PVC, XLPE, XLPO, silicon rubber, polyurethane, fluoroplastic and the like. The hard busbar 1 is wrapped by an insulating layer, the insulating layer can be made of nylon, PVC, XLPE, XLPO, silicon rubber, polyurethane, fluoroplastic and the like, and the thickness of the insulating layer of the hard busbar 1 is 0.1mm-5mm. The conductive material of the flexible soft busbar 1 and the hard busbar 3 can be copper, aluminum, copper alloy, aluminum alloy and the like. The hard busbar 3 can be made of one material or a plurality of conductive materials which are combined into the hard busbar.
The conductor inside the flexible busbar 3 is a multilayer overlapped corona-proof flat thin metal conductor 101, the whole section of the conductor is rectangular, and the insulating layer 102 outside the conductor is manufactured by adopting an extrusion molding mode in a coating mode. The conductor of the flexible soft bus bar 3 can freely slide in the insulating layer, so that the flexible soft bus bar 3 has infinite bending and twisting characteristics, the width-thickness ratio of the conductor is large, and the flexible soft bus bar 3 can be easily bent in the thickness direction. When the flexible soft busbar 3 is installed, the flexible soft busbar can be bent into any shape by adopting a simple tool, and wiring is convenient to install. Due to the skin effect, the conductor of the flexible busbar 3 is composed of a multi-layer flat conductor structure, so that the flexible busbar 3 has higher current carrying capacity under the condition that the conductors have the same sectional area.
In order to prevent oxidation, the flat thin metal conductor of the flexible soft bus bar can be coated with conductive materials such as nickel, copper, silver, tin and the like.
For adapting to the space structure of the installation position of the hard busbar 1, the busbar structure comprises a plurality of hard busbars 1, the cross sections of the hard busbars 1 can be the same as that of the flexible soft busbar 3, the hard busbar 1 can also be a conductive bar, and the cross sections of the hard busbars are circular. The connecting parts between the hard busbar or between the hard busbar 1 and the flexible soft busbar 2 are flat, so that the connecting parts can be attached conveniently.
Each hard busbar 1 is a space structure suitable for the position, and a plurality of bending structures are arranged on the space structure. The bending structure of the hard busbar 1 with the rectangular section is divided into a vertical bending structure, a horizontal bending structure and a torsional bending structure according to different bending directions, as shown in fig. 5a, 5b and 5c, the vertical bending structure bends along the thickness direction of the hard busbar 1, the horizontal bending structure bends along the width direction of the hard busbar 1, and the torsional bending structure twists along the length direction of the hard busbar 1. The same hard busbar can simultaneously have one or more bending structures.
After the insulating layer is removed from the end joint part of the hard busbar 1, in order to prevent electrochemical corrosion when the hard busbar 1 is connected with other structures such as a connector and the like, the end joint surface of the hard busbar can be coated with conductive materials such as nickel, copper, silver, tin and the like so as to prevent electrochemical corrosion when the hard busbar is connected, the thickness of the conductive metal layer is 0.01mm-1mm, and the mode of coating the metal layer on the end joint surface comprises a magnetron sputtering method or welding.
The insulating layer is removed from the connecting part of the flexible soft busbar 3 and the hard busbar 1 which are connected with each other, the conductive material is exposed, and the exposed conductive material is attached to each other and connected in a riveting mode. In this embodiment, the conductive material that flexible soft busbar 3, hard busbar 1 connecting portion expose sets up the hole of cartridge rivet 205 to adopt rivet 205 to pass the hole on the conductive material of connecting portion 2 and rivet, make flexible soft busbar 3, hard busbar 1 both firmly connect, it needs to explain that there are four rivets in this embodiment, distribute on connecting portion 2, can adjust rivet quantity according to generating line size structure in the practical application.
The second embodiment of the utility model, as shown in fig. 3, lie in with the difference of first embodiment, flexible soft female row 3 is connected with hard female row 1 through welded form, and in this embodiment, flexible soft female row 3, hard female row 1 tip remove the insulating layer after, will electrically conductive material laminating and utilize ultrasonic bonding to arrange flexible soft female row 3, hard female row 1 two to be connected.
The third embodiment of the present invention is, as shown in fig. 4, different from the first embodiment in that the flexible soft busbar 3 is connected to the hard busbar 1 in a bolt connection manner. In this embodiment, after the insulating layer is removed from the end portions of the flexible soft busbar 3 and the hard busbar 1, the exposed conductive material is connected by using a bolt group. Flexible soft female row 3, the electrically conductive material that hard female row 1 exposes sets up the hole of cartridge bolt 201, bolt group includes bolt 201, elastic gasket 202, gasket 203, nut 204, elastic gasket 202 is established to the cover on the bolt 201, gasket 203 passes flexible soft female row 3 in proper order, the hole that corresponds on hard female row 1, then at flexible soft female row 3, hard female 1 opposite side of arranging uses nut 204 to fix, it has four to explain that the bolt has in this embodiment, each bolt group is close to four angles that the binding face corresponds, soft female row 3 of flexibility, hard female row 1 carries out firm connection, can be according to the generating line structure in the practical application, adjust bolt quantity.
In practical application, the multiple hard busbars 1 are switched by using the flexible soft busbar 3, for example, in a wiring harness between a charging port and a battery pack of a new energy automobile, the battery pack is assembled under a trunk, the charging port is assembled under a car logo, the wiring harness almost penetrates through the whole automobile body, tolerance absorption can be performed by using the flexible soft busbar 3 at a connector end of the battery pack, the flexible soft busbar 3 is switched near a structural member of the automobile body to avoid the structural member, the hard busbars 1 are adopted at other positions, corresponding conductive bars or hard busbars with rectangular cross sections are used according to the positions, and the positions of bending structures are arranged according to the spatial structure.
The flexible soft busbar is connected with the hard busbar by utilizing the characteristics of flexibility and large current-carrying capacity of the flexible soft busbar, so that the defect of high rigidity after the hard busbar is formed is overcome, and the situation that the charging current of a new energy automobile is continuously increased is solved; when the assembly, even there is the error in the size of arranging 1 hard, also can buckle through flexible soft female row 3 and carry out compensation adjustment, absorb the tolerance of arranging hard female row through flexible soft female row, can be more light assemble, need not improve the machining precision of arranging 1 hard female, and then reduced the processing cost.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A bus bar structure with tolerance absorbing capability comprises a hard bus bar (1), and is characterized in that: the end part of the hard bus bar (1) is conductively connected with a flexible soft bus bar (3), a conductor in the flexible soft bus bar (3) is a multilayer overlapped corona-proof flat thin metal conductor, and a coated insulating layer is arranged outside the flexible soft bus bar; the insulating layer is removed from the end parts of the flexible soft busbar (3) and the hard busbar (1) which are connected with each other, and the conductive materials exposed from the end parts are attached to each other and connected.
2. The bus bar structure with tolerance absorbing capability according to claim 1, wherein: the insulating layer of the flexible busbar (3) is made of any one of PVC, XLPE, XLPO, silicone rubber, polyurethane and fluoroplastic; the conductive material of the flexible soft busbar (3) is any one of copper, aluminum, copper alloy and aluminum alloy.
3. The bus bar structure with tolerance absorbing capability according to claim 1 or 2, wherein: the surface of the flat thin metal conductor in the flexible soft mother row can be coated with any one of nickel, copper, silver and tin.
4. The bus bar structure with tolerance absorbing capability according to claim 1, wherein: the hard busbar (1) is externally wrapped with an insulating layer, and the insulating layer is made of any one of nylon, PVC, XLPE, XLPO, silicone rubber, polyurethane and fluoroplastic; the hard busbar (1) is made of any one or more of copper, aluminum, copper alloy and aluminum alloy.
5. The bus bar structure with tolerance absorbing capability according to claim 4, wherein: the thickness of the insulating layer is 0.1mm-5mm.
6. The bus bar structure with tolerance absorbing capability according to claim 1 or 4, wherein: the cross section of the hard busbar (1) is rectangular or circular.
7. The bus bar structure with tolerance absorbing capability according to claim 6, wherein: the bending structure is arranged on the hard busbar (1), and the bending structure of the hard busbar (1) with the rectangular cross section is one or more of a vertical bending structure, a horizontal bending structure and a twisting structure.
8. The bus bar structure with tolerance absorbing capability according to claim 6, wherein: the end joint surface of the hard busbar (1) is welded with a conductive metal layer by a magnetron sputtering method, and the conductive metal layer is made of any one of nickel, copper, silver and tin.
9. The bus bar structure with tolerance absorbing capability according to claim 8, wherein: the thickness of the conductive metal layer covered on the end joint surface of the hard busbar (1) is 0.01mm-1 mm.
10. The bus bar structure with tolerance absorbing capability according to claim 1, wherein: the flexible soft busbar (3) and the hard busbar (1) are connected in a riveting mode, an ultrasonic welding mode or a bolt connection mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222271634.3U CN218414021U (en) | 2022-08-26 | 2022-08-26 | Bus structure with tolerance absorption capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222271634.3U CN218414021U (en) | 2022-08-26 | 2022-08-26 | Bus structure with tolerance absorption capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218414021U true CN218414021U (en) | 2023-01-31 |
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ID=85028321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222271634.3U Active CN218414021U (en) | 2022-08-26 | 2022-08-26 | Bus structure with tolerance absorption capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218414021U (en) |
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2022
- 2022-08-26 CN CN202222271634.3U patent/CN218414021U/en active Active
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