CN219843033U - Heat dissipation structure of bus plate - Google Patents
Heat dissipation structure of bus plate Download PDFInfo
- Publication number
- CN219843033U CN219843033U CN202320910239.7U CN202320910239U CN219843033U CN 219843033 U CN219843033 U CN 219843033U CN 202320910239 U CN202320910239 U CN 202320910239U CN 219843033 U CN219843033 U CN 219843033U
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- heat dissipation
- flow channel
- cooling
- cooling flow
- busbar
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 100
- 238000001816 cooling Methods 0.000 claims abstract description 55
- 238000003466 welding Methods 0.000 claims description 31
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 5
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
The utility model provides a bus plate heat dissipation structure, which comprises a bus plate, wherein the bus plate comprises a conductive part and a heat dissipation part, the conductive part and the heat dissipation part are of an integrated plate-shaped structure, and the conductive part and the heat dissipation part are arranged in parallel; and a cooling flow passage is formed in the heat dissipation part. According to the structure, the heat dissipation part and the conductive part are arranged in parallel so that the bus plate is of a plate-shaped structure, the bus plate has a relatively flat surface, installation of components such as an insulating PC film and an FPC sampling wire is not interfered, convenience of battery module grouping is improved, and the heat dissipation part is not easy to collide when the conductive part of the bus plate is connected with a pole column of the battery module and the like, so that the heat dissipation structure is not easy to damage.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a heat dissipation structure of a bus plate.
Background
The bus plate is a common electrical connector, plays a role in current transmission, and can be used for series-parallel connection work among battery modules. In the work process of the confluence sheet, heat can be generated, and the confluence sheet is required to be radiated in order to avoid the fire risk caused by high-temperature fusing.
The utility model patent with the prior authority bulletin number of CN212625782U discloses a battery confluence sheet and a battery module. The battery converging sheet comprises a converging sheet, a cooling pipeline is arranged on the converging sheet, and an inlet pipe for a cooling medium to enter the cooling pipeline and a discharge pipe for the cooling medium to discharge the cooling pipeline are arranged on the cooling pipeline.
In the above technical scheme, it has set up cooling duct on the busbar, and this structure has following problem in practical application process:
firstly, when the structure is applied to a battery module, a cooling pipeline protruding on a bus plate can cause the whole bus plate to be uneven, so that the installation of an insulating PC film is affected;
secondly, the arrangement of the cooling pipeline can interfere the installation of an FPC sampling line for battery detection, wherein the FPC sampling line is a device for monitoring the battery condition by connecting a bus plate, and the installation structure of the FPC sampling line is shown in the patent of the utility model with the publication number of CN 218499348U;
thirdly, when installing the confluence sheet to the battery module, the collision damage of the cooling pipeline is easy to be caused.
Disclosure of Invention
In view of the above, the utility model provides a busbar heat dissipation structure which does not interfere with the installation of an insulating PC film and an FPC sampling line and is not easy to damage, so as to solve the problems that the cooling pipeline of the existing busbar is easy to interfere with the installation of a component and is easy to damage.
The technical scheme of the utility model is realized as follows: the utility model provides a heat dissipation structure of a bus plate, which comprises the bus plate, wherein the bus plate comprises a conductive part and a heat dissipation part,
the conductive part and the heat dissipation part are of an integrated plate-shaped structure, and are arranged in parallel;
the cooling flow passage is arranged in the heat dissipation part.
On the basis of the technical scheme, preferably, the conducting part and the radiating part are arranged at an included angle, and the included angle is larger than ninety degrees.
On the basis of the above technical solution, preferably, the conductive portion and the heat dissipation portion are connected by welding.
On the basis of the technical scheme, preferably, the radiating part is formed by splicing two radiating plates, the opposite surfaces of the two radiating plates are respectively provided with a runner groove, and the two runner grooves are combined to form a cooling runner.
On the basis of the technical scheme, preferably, the two radiating plates are fixedly connected in a welding mode.
On the basis of the technical scheme, the cooling flow channel is preferably in a serpentine structure.
On the basis of the above technical solution, it is preferable that the welding spots on the two heat dissipation plates include a first portion and a second portion, wherein,
the first part is in a frame-shaped structure, is arranged around the cooling flow channel, and is reserved with openings at two ends of the cooling flow channel;
the second part is in a linear structure, the cooling flow channel comprises a plurality of parallel parts, and the second part is arranged between two adjacent parallel parts of the cooling flow channel.
On the basis of the technical scheme, the thickness of the radiating plate is preferably 1-4 mm, and the two radiating plates are welded in a friction stir welding mode.
In the above aspect, preferably, the conductive portion is made of 1-series aluminum.
On the basis of the above technical scheme, preferably, the heat dissipation part is made of 6-series aluminum.
Compared with the prior art, the busbar heat dissipation structure has the following beneficial effects:
(1) The bus plate is composed of a conductive part and a heat dissipation part, and the heat dissipation part and the conductive part are arranged in parallel to enable the bus plate to be of a plate-shaped structure, so that the bus plate has a relatively flat surface, the wrapping of the battery module by the insulating PC film is not interfered, the installation of the FPC sampling line is not interfered, and the convenience of battery module grouping is improved; when the conductive part of the bus plate is connected with the pole column and other structures of the battery module, the conductive part is not easy to collide with the heat dissipation part, so that the heat dissipation structure is not easy to damage;
(2) The conductive part and the heat dissipation part are formed in a welding mode, so that the conductive part is not damaged in the processing process when the heat dissipation part is provided with a heat dissipation flow channel, and the conductive part can be ensured to have good performance;
(3) The heat dissipation part is internally provided with a cooling flow passage, the conductive part is formed by splicing and welding two heat dissipation plates, a first part of a formed welding spot surrounds the cooling flow passage, and a second part parallel to the parallel part is arranged on the welding spot aiming at the parallel part of the cooling flow passage, so that the splicing strength of the two heat dissipation plates can be ensured to the greatest extent, and the welding process is simplified;
(4) The conductive part is made of 1-series aluminum, and the heat dissipation part is made of 6-series aluminum, so that the conductive part has excellent conductivity, the heat dissipation part has excellent corrosion resistance and processability, and the confluence and heat dissipation capability of the confluence sheet can be fully ensured.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a busbar heat dissipating structure of the present utility model;
FIG. 2 is a perspective view of a heat dissipating portion of the bus bar heat dissipating structure of the present utility model;
FIG. 3 is an exploded view of a heat dissipating portion of the bus bar heat dissipating structure of the present utility model;
FIG. 4 is a schematic layout of the cooling flow channel, the first portion and the second portion of the busbar heat dissipating structure according to the present utility model;
FIG. 5 is a diagram showing an application state of the bus bar according to the present utility model;
FIG. 6 is a second application state diagram of the bus of the present utility model;
in the figure: the bus bar 1, the conductive part 11, the heat dissipation part 12, the heat dissipation plate 121, the flow channel groove 1201, the cooling flow channel 101, the parallel part 1011, the opening 102, the first part a1, the second part a2, the battery 2, and the post 3.
Detailed Description
The following description of the embodiments of the present utility model will clearly and fully describe the technical aspects of the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.
As shown in fig. 1 to 5, the bus bar heat dissipation structure of the present utility model includes a bus bar 1, the bus bar 1 being composed of a conductive portion 11 and a heat dissipation portion 12.
The bus plate 1 is used for current transmission, can be installed on a battery pole in a battery module, realizes series connection and parallel connection between batteries, and can also be used for electric connection between the batteries and other electric components. As the resistance of the material of the busbar 1 increases, the heating value is higher, and in order to cope with the risk of heating and fire, it is necessary to cool and dissipate heat.
The current collecting plate 1 comprises a conductive part 11 and a heat radiating part 12, wherein the conductive part 11 is used for current transmission, the heat radiating part 12 is used for radiating and cooling the current collecting plate 1, and meanwhile, the heat radiating part 12 can also play a certain current transmission role so as to improve the current collecting capacity of the current collecting plate 1.
The conductive portion 11 and the heat dissipation portion 12 are of an integrated plate-like structure, and the conductive portion 11 and the heat dissipation portion 12 are arranged in parallel. So, the busbar 1 that comprises conductive part 11 and radiating part 12 has smooth surface, can make things convenient for some detection components's such as FPC sampling line installation, and FPC sampling line is the detection device who is used for monitoring battery state, and this can guarantee when battery module appears unusual, and the external world can in time learn.
In some battery modules without installing FPC sampling wires, the bus plate structure is applied, so that the bus plate structure cannot interfere the wrapping of the PC insulating film on the electromagnetic module, the PC insulating film can be better attached to the battery film group, and the risk of damage of the PC insulating film is reduced; even if the FPC sampling wire needs to be mounted on the bus bar 1, the PC insulating film does not interfere with the wrapping of the battery module because the FPC sampling wire does not generate an excessively large protrusion on the bus bar 1.
The cooling flow channel 101 is formed in the heat dissipation part 12 and is used for connecting a water cooling pipeline to realize cooling and heat dissipation of the busbar 1 in a water cooling mode.
Further, the cooling flow channel 101 has a serpentine structure. In this way, the cooling flow channel 101 has a longer stroke, so that the cooling water can exchange heat with the confluence sheet 1 as much as possible when flowing in the cooling flow channel 101, so as to improve the heat dissipation efficiency.
As shown in fig. 5, which is an end view angle of the present bus bar 1, the conductive portion 11 and the heat dissipation portion 12 are disposed at an included angle, and the included angle is greater than ninety degrees. In the figure, the sign 2 is a battery, and the sign 3 is a pole. With the above structure, after the conductive portion 11 is connected to the post 3 of the battery 2, the heat dissipation portion 22 is in a deflected structure, which allows a sufficient operation space in the upper portion of the battery 2 to avoid interference with the assembly work of other components.
Further, the conductive portion 11 and the heat dissipation portion 12 are connected by welding. Since the cooling flow channel 101 is required to be built in the heat dissipation part 12, the conductive part 11 and the heat dissipation part 12 can be separately processed, and after the conductive part 11 and the heat dissipation part 12 are respectively manufactured, the welding forming is performed, so that the problem that the conductive part 11 and the heat dissipation part 12 are damaged due to the interference of the production forming flows can be avoided.
Specifically, the heat dissipation portion 12 is formed by splicing two heat dissipation plates 121, and the opposite surfaces of the two heat dissipation plates 121 are respectively provided with a flow channel groove 1201, and the two flow channel grooves 1201 are combined to form the cooling flow channel 101. In the above structure, the heat dissipation plate 121 is provided with the flow channel groove 1201, and then the two heat dissipation plates 121 are spliced to form the complete cooling flow channel 101, so that the heat dissipation plate has the advantage of convenient production, and the cooling flow channel 101 is conveniently arranged. Like the extrusion-molded heat dissipation part 12, the generated flow channel can only be in a straight line shape, the heat dissipation effect is poor, the spliced-molded heat dissipation part 12 is composed of two heat dissipation plates 121, and the flow channel grooves 1201 on the heat dissipation plates 121 can be arranged in any shape, so that the heat dissipation part has the advantages that the flow channel grooves 1201 are convenient to arrange, and the cooling flow channel 101 with a complex structure can be formed.
Further, the two heat dissipation plates 121 are fixedly connected by welding. The two heat dissipation plates 121 are welded and formed, so that the heat dissipation plates have good bonding capability, the problem of water leakage caused by poor structural strength can be avoided, and the use safety can be improved.
In the heat dissipation portion 12, the thickness of the heat dissipation plate 121 is preferably 1 to 4mm, and the two heat dissipation plates 121 are welded by friction stir welding. As structured above, the thickness of the heat dissipation plate 121 is at least 1mm, and the superimposed thickness of the two heat dissipation plates 121 is 2mm, which can ensure the welding stability of the heat dissipation plates 121, so as to avoid the problem of deformation of the heat dissipation plates 121 during friction stir welding. Of course, in the case of high precision processing, for example, the heat dissipation plate 121 is clamped by a clamp, and the clamping point is as close to the moving track of friction stir welding as possible, so that deformation of the heat dissipation plate 121 caused in the welding process can be prevented to the greatest extent, and the thickness of the heat dissipation plate 121 can be set to be smaller than 1mm.
For the welding of the two heat dissipation plates 121, the welding points on the two heat dissipation plates 121 comprise a first part a1 and a second part a2, wherein the first part a1 is in a frame-shaped structure, the first part a1 is arranged around the cooling flow channel 101, and openings 102 are reserved at two ends of the cooling flow channel 101; with the above structure, the first portion a1 of the welding spot is sealed against the cooling flow passage 101, and only the opening 102 is left for connecting the water cooling pipe for the cooling water to flow in and out.
The second portion a2 of the welding spot has a linear structure, the cooling flow channel 101 includes a plurality of parallel portions 1011, and the second portion a2 is disposed between two adjacent parallel portions 1011 of the cooling flow channel 101. In the above configuration, the second portion a2 of the welding spot is to match the serpentine-shaped cooling flow channel 101, so that water in the cooling flow channel 101 can circulate along the serpentine shape, and the connection strength of the two heat dissipation plates 121 can be effectively improved, the welding workload is very small, and the molding efficiency can be improved.
To meet the conductive requirement, the conductive portion 11 is made of 1 series aluminum. The conductive material has good conductivity, can ensure current conduction efficiency and reduce heating value; the heat dissipation portion 12 is made of 6-series aluminum, and 6-series aluminum has good workability and corrosion resistance, and is suitable for circulation of cooling water, so that the above structure can ensure good usability of the present busbar 1.
As shown in fig. 6, two conductive parts 11 are provided at one side of the heat dissipation part 12, and in practice, as long as the heat dissipation part 12 is long enough, more conductive parts 11 may be provided, which may reduce the number of parts, and facilitate the grouping of the battery modules. Meanwhile, when the volume of the heat dissipation part 12 is large enough, the heat dissipation part 12 can be used for connecting a battery module, the connection is fixed connection in structure, not electric connection, in order to prevent the heat dissipation part 12 from suspending, because the conductive part 11 is welded with the pole 3 of the battery 2, if the heat dissipation part 12 is suspended, fluctuation is easily generated due to factors such as vibration, and further the welding of the conductive part 11 and the pole 3 is loosened, and the connection part of the conductive part 11 and the heat dissipation part 12 is bent and fatigued to break, and after the heat dissipation part 12 is connected with the battery module, the overall stability is higher, so that the use is safer. When the connection of the above structure is performed, the heat dissipation part 12 and the battery module are required to be insulated before the connection, so that the short circuit problem is avoided.
The specific implementation steps are as follows:
firstly, preparing a conductive part 11 and a heat dissipation plate 121, arranging a flow channel groove 1201 on the heat dissipation plate 121, then splicing the two heat dissipation plates 121, closing the flow channel grooves 1201 of the two heat dissipation plates 121 to form a cooling flow channel 101, welding the two heat dissipation parts 12 at the moment to form a first part a1 and a second part a2 of welding spots, welding the conductive part 11 and the heat dissipation parts 12 to form, and connecting a water cooling pipe pipeline at an opening 102 of the heat dissipation part 12. In application, the electrode 3 of the battery 2 may be connected to the conductive portion 11.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (10)
1. The utility model provides a confluence piece heat radiation structure which includes confluence piece (1), its characterized in that: the bus bar (1) comprises a conductive part (11) and a heat dissipation part (12), wherein,
the conductive part (11) and the heat dissipation part (12) are of an integrated plate-shaped structure, and the conductive part (11) and the heat dissipation part (12) are arranged in parallel;
a cooling flow passage (101) is formed in the heat dissipation part (12).
2. The busbar heat dissipating structure of claim 1, wherein: the conducting part (11) and the radiating part (12) are arranged at an included angle, and the included angle is larger than ninety degrees.
3. The busbar heat dissipating structure of claim 1, wherein: the conductive part (11) and the heat dissipation part (12) are connected by welding.
4. A busbar heat sink as set forth in claim 3, wherein: the cooling part (12) is formed by splicing two cooling plates (121), flow channel grooves (1201) are formed in opposite surfaces of the two cooling plates (121), and the two flow channel grooves (1201) are combined to form the cooling flow channel (101).
5. The busbar heat dissipating structure of claim 4, wherein: the two radiating plates (121) are fixedly connected through welding.
6. The busbar heat dissipating structure of claim 5, wherein: the cooling flow channel (101) is in a serpentine structure.
7. The busbar heat dissipating structure of claim 6, wherein: the welding points on the two radiating plates (121) comprise a first part (a 1) and a second part (a 2), wherein,
the first part (a 1) is in a frame-shaped structure, the first part (a 1) is arranged around the cooling flow channel (101), and openings (102) are reserved at two ends of the cooling flow channel (101);
the second part (a 2) is in a linear structure, the cooling flow channel (101) comprises a plurality of parallel parts (1011), and the second part (a 2) is arranged between two adjacent parallel parts (1011) of the cooling flow channel (101).
8. The busbar heat dissipating structure of any one of claims 5 to 7, wherein: the thickness of the radiating plate (121) is 1-4 mm, and the two radiating plates (121) are welded in a friction stir welding mode.
9. The busbar heat dissipating structure of any one of claims 1 to 7, wherein: the conductive part (11) is made of 1 series aluminum.
10. The busbar heat dissipating structure of any one of claims 1 to 7, wherein: the heat dissipation part (12) is made of 6-series aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320910239.7U CN219843033U (en) | 2023-04-21 | 2023-04-21 | Heat dissipation structure of bus plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320910239.7U CN219843033U (en) | 2023-04-21 | 2023-04-21 | Heat dissipation structure of bus plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219843033U true CN219843033U (en) | 2023-10-17 |
Family
ID=88302222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320910239.7U Active CN219843033U (en) | 2023-04-21 | 2023-04-21 | Heat dissipation structure of bus plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219843033U (en) |
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2023
- 2023-04-21 CN CN202320910239.7U patent/CN219843033U/en active Active
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