CN219892415U - Copper-nickel composite soft copper bar and battery pack - Google Patents
Copper-nickel composite soft copper bar and battery pack Download PDFInfo
- Publication number
- CN219892415U CN219892415U CN202321376916.8U CN202321376916U CN219892415U CN 219892415 U CN219892415 U CN 219892415U CN 202321376916 U CN202321376916 U CN 202321376916U CN 219892415 U CN219892415 U CN 219892415U
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- CN
- China
- Prior art keywords
- copper
- nickel composite
- conductor
- welding
- composite soft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 97
- 239000010949 copper Substances 0.000 title claims abstract description 97
- 229910000570 Cupronickel Inorganic materials 0.000 title claims abstract description 57
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 title claims abstract description 57
- 239000002131 composite material Substances 0.000 title claims abstract description 54
- 239000004020 conductor Substances 0.000 claims abstract description 56
- 239000011889 copper foil Substances 0.000 claims description 25
- 238000003466 welding Methods 0.000 abstract description 31
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract description 16
- 229910052759 nickel Inorganic materials 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000009713 electroplating Methods 0.000 description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000002500 effect on skin Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The copper-nickel composite soft copper bar comprises a copper conductor, copper-nickel composite sheets are arranged at two ends of the copper conductor, the copper-nickel composite sheets are arranged on two sides of the conductor, a copper surface of the copper-nickel composite sheets is connected with the copper conductor, and an insulating sleeve is sleeved on the copper conductor. The utility model aims to provide a copper-nickel composite soft copper bar, which can solve the technical problems of insufficient welding tension of welding nickel sheets of soft copper plates and welding peeling and open welding in the prior art.
Description
Technical Field
The utility model relates to the technical field of soft copper bars, in particular to a copper-nickel composite soft copper bar and a battery pack.
Background
At present, battery pack connection flexible rows for new energy automobiles are mainly divided into two types according to different materials of used raw materials, namely copper foil nickel-attached sheet welding and tin plating after copper foil welding. The welding of the copper foil nickel-attached sheet is used by most new energy automobiles at present because the electroplating cost is not needed, but the nickel-attached sheet is easy to peel and open, and the melting points of the two materials are different, so that the reject ratio of the copper foil nickel-attached sheet is higher, and the manufacturing cost is increased. After copper foil welding, tin plating is performed, and due to the fact that an electroplating process is added after welding, the soft-strip electroplating requirement is high, electroplating enterprises in the general market cannot electroplate, and therefore electroplating cost ratio is 2-4 times that of other products.
Disclosure of Invention
1. Technical problem to be solved by the utility model
The utility model aims to provide a copper-nickel composite soft copper bar, which can solve the technical problems of insufficient welding tension of welding nickel sheets of soft copper plates and welding peeling and open welding in the prior art.
2. Technical proposal
In order to solve the problems, the technical scheme provided by the utility model is as follows:
the utility model provides a copper nickel compound soft copper bar, includes the copper conductor, copper conductor both ends all are equipped with copper nickel compound piece, copper nickel compound piece is in conductor both sides all set up, copper face and the copper conductor of copper nickel compound piece are connected, the cover is equipped with insulating cover on the copper conductor.
Optionally, the copper-nickel composite sheet and the insulating sleeve are connected through a first buffer structure.
Optionally, a second buffer connection structure is arranged in the middle of the copper conductor.
Optionally, mounting holes are formed at two ends of the copper conductor, and the mounting holes penetrate through the copper conductor and the copper-nickel composite sheet.
Optionally, the copper conductor comprises at least two layers of copper foil.
Optionally, the copper conductor comprises 10-50 layers of copper foil.
Optionally, the copper foil has a thickness of 0.1-0.2mm.
Optionally, the copper conductor has a thickness of 1-5mm.
The battery pack comprises at least two battery modules and the copper-nickel composite soft copper bar, wherein the two battery modules are connected through the copper-nickel composite soft copper bar.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:
the copper-nickel composite soft copper bar solves the difficulty of welding different materials, welding contact surfaces are welded by the same materials, the welded tensile force is consistent with the copper foil welding tensile force, and the welding of the copper-nickel composite sheet and the copper conductor can change the welding strength and the conductivity of the copper conductor, improve the welding strength, reduce the peeling and the opening welding frequency of the welded nickel sheet and reduce the production and manufacturing cost; and because of skin effect, when the current passing through is alternating current, the conductivity of the copper foil is also obviously improved.
Drawings
Fig. 1 is a schematic structural diagram of a copper-nickel composite soft copper bar according to an embodiment of the present utility model;
1. a copper conductor; 2. copper nickel composite sheet; 3. an insulating sleeve; 4. and (5) mounting holes.
Detailed Description
The present utility model will be further described in detail with reference to the drawings and the detailed description, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "mounted," "positioned," "secured" or "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. Further, when one element is considered as being "fixedly connected" to another element, the two elements may be fixed by a detachable connection manner, or may be fixed by a non-detachable connection manner, such as sleeving, clamping, integrally forming, or welding, which may be implemented in the prior art, and thus, the description is not further omitted. When an element is perpendicular or nearly perpendicular to another element, it is meant that the ideal conditions for both are perpendicular, but certain vertical errors may exist due to manufacturing and assembly effects. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only 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 utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The terms "first" and "second" as used herein do not denote a particular quantity or order, but rather are used to distinguish one element from another.
Example 1
Referring to fig. 1, a copper-nickel composite soft copper bar of the present embodiment includes a copper conductor 1, copper-nickel composite sheets 2 are disposed at two ends of the copper conductor 1, the copper-nickel composite sheets 2 are disposed on two sides of the conductor 1, that is, both front and back sides of the conductor 1 are provided with copper-nickel composite sheets 2, copper surfaces of the copper-nickel composite sheets 2 are connected with the copper conductor 1, a connection mode between the copper surfaces of the copper-nickel composite sheets 2 and the copper conductor 1 is welding, an insulation sleeve 3 is sleeved on the copper conductor 1, and the insulation sleeve 3 can avoid hidden trouble of short circuit caused by direct contact between a middle section of the copper conductor 1 and other conductive elements; in this embodiment, the insulating sleeve 3 is a heat-shrinkable sleeve, but other insulating materials may be used instead, such as a glass fiber sleeve, a PVC sleeve, a mica tape, a wear-resistant tape, etc.
The copper-nickel composite soft copper bar solves the difficulty of welding different materials, welding contact surfaces are welded by the same materials, the welded tensile force is consistent with the copper foil welding tensile force, and the welding of the copper-nickel composite sheet and the copper conductor can change the welding strength and the conductivity of the copper conductor, improve the welding strength, reduce the peeling and the opening welding frequency of the welded nickel sheet and reduce the production and manufacturing cost; and because of skin effect, when the current passing through is alternating current, the conductivity of the copper foil is also obviously improved.
As an alternative of the present utility model, the copper-nickel composite sheet 2 includes a copper sheet and a nickel sheet that are compositely connected together, and the composite manner of the copper sheet and the nickel sheet is the prior art, so that the description thereof will not be repeated here.
As an alternative of the present utility model, the copper-nickel composite sheet 2 and the insulating sleeve 3 are connected by a first buffer structure, where the first buffer structure includes a connection boss provided on a nickel surface of the copper-nickel composite sheet 2, and a connection hole provided on the insulating sleeve 3 and matched with the connection boss, at this time, the insulating sleeve 3 is made of a material with a certain elasticity, and an end portion of the insulating sleeve 3 is sleeved on the connection boss through the connection hole, so that two ends of the insulating sleeve 3 are simultaneously connected with the four copper-nickel composite sheets 2, so that when the copper conductor 1 is pulled, the insulating sleeve 3 can play a certain role in buffering the copper conductor 1, and prevent the copper conductor 1 from being excessively stretched and broken.
As an alternative scheme of the utility model, the middle part of the copper conductor 1 is provided with a second buffer connection structure, the second buffer connection structure is an arch-shaped bending part at the middle part of the copper conductor 1, the displacement compensation function is realized, the possibility of breakage of the soft copper bar due to pulling is reduced, and the first buffer structure and the second buffer connection structure are matched to play a very good role in protecting the soft copper bar.
As an alternative of the present utility model, both ends of the copper conductor 1 are provided with mounting holes 4, the mounting holes 4 penetrate through the copper conductor 1 and the copper-nickel composite sheet 2, and the mounting holes 4 are circular holes, mainly for facilitating connection of the soft copper bar with other components, such as connection with a battery module.
As an alternative of the present utility model, the copper conductor 1 includes at least two layers of copper foil, and the two layers of copper foil are respectively connected with the two copper-nickel composite sheets 2; in this example, the copper conductor 1 comprises 10-50 layers of copper foil, enabling the passage of high currents through the soft copper bars.
As an alternative scheme of the utility model, the thickness of the copper foil is 0.1-0.2mm, so that the softness of the soft copper bar is ensured, the soft copper bar is easy to bend, and the thickness of the copper conductor 1 is finally 1-5mm by controlling the thickness of the copper foil and the number of the copper foils.
As an alternative of the present utility model, the copper conductor 1 has a strip structure, and the width of the copper conductor 1 is 10-50mm.
The manufacturing process of the copper-nickel composite soft copper bar comprises the following steps:
s1, respectively forming one layer of copper-nickel composite sheet above and below the size of the area to be welded;
s2, selecting 10-50 layers of copper foils with the same size, and taking any two copper foils to be spot-welded with the copper surfaces of the copper-nickel composite sheets;
s3, stacking 10-50 layers of copper foils with the same size together, wherein the nickel surfaces of the spot-welded copper-nickel composite sheet are respectively placed on the topmost layer and the bottommost layer;
s4, respectively and correspondingly welding two ends of the adjacent copper foils after being stacked together in a high-current heating and pressure welding mode through a high-molecular diffuser;
s5, punching and trimming the two ends of the copper conductor to manufacture bolt mounting holes, and trimming the two ends of the copper conductor into a required shape;
s6, selecting an insulating layer with the diameter larger than the width of the copper conductor and the length the same as the length of the middle section of the copper conductor, sleeving the insulating layer on the middle section of the copper conductor, and performing heat shrinkage or winding;
s7, discharging the soft copper into a bending device to be bent into a required shape;
s8, checking whether the soft copper bars meet the requirements, and if so, boxing and warehousing.
Example 1
The battery pack of the embodiment comprises at least two battery modules and the copper-nickel composite soft copper bar in the embodiment one, wherein the two battery modules are connected through the copper-nickel composite soft copper bar, and the copper-nickel composite soft copper bar is installed on the battery module through the installation hole 4.
The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.
Claims (9)
1. The utility model provides a copper nickel composite soft copper bar which characterized in that: the copper-nickel composite sheet is arranged at two ends of the copper conductor, the copper-nickel composite sheet is arranged at two sides of the conductor, the copper surface of the copper-nickel composite sheet is connected with the copper conductor, and an insulating sleeve is sleeved on the copper conductor.
2. The copper-nickel composite soft copper bar according to claim 1, wherein: the copper-nickel composite sheet is connected with the insulating sleeve through a first buffer structure.
3. The copper-nickel composite soft copper bar according to claim 1, wherein: and a second buffer connection structure is arranged in the middle of the copper conductor.
4. The copper-nickel composite soft copper bar according to claim 1, wherein: and mounting holes are formed in two ends of the copper conductor, and penetrate through the copper conductor and the copper-nickel composite sheet.
5. The copper-nickel composite soft copper bar according to claim 1, wherein: the copper conductor includes at least two layers of copper foil.
6. The copper-nickel composite soft copper bar according to claim 5, wherein: the copper conductor comprises 10-50 layers of copper foil.
7. The copper-nickel composite soft copper bar according to claim 5, wherein: the thickness of the copper foil is 0.1-0.2mm.
8. A copper nickel composite soft copper bar according to any one of claims 1-7, wherein: the thickness of the copper conductor is 1-5mm.
9. A battery pack, characterized in that: comprising at least two battery modules and the copper-nickel composite soft copper bar according to any one of claims 1-8, wherein the two battery modules are connected through the copper-nickel composite soft copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321376916.8U CN219892415U (en) | 2023-06-01 | 2023-06-01 | Copper-nickel composite soft copper bar and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321376916.8U CN219892415U (en) | 2023-06-01 | 2023-06-01 | Copper-nickel composite soft copper bar and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219892415U true CN219892415U (en) | 2023-10-24 |
Family
ID=88397009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321376916.8U Active CN219892415U (en) | 2023-06-01 | 2023-06-01 | Copper-nickel composite soft copper bar and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219892415U (en) |
-
2023
- 2023-06-01 CN CN202321376916.8U patent/CN219892415U/en active Active
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| GR01 | Patent grant |