CN218827710U - Busbar, electrical system and battery package - Google Patents
Busbar, electrical system and battery package Download PDFInfo
- Publication number
- CN218827710U CN218827710U CN202223465994.3U CN202223465994U CN218827710U CN 218827710 U CN218827710 U CN 218827710U CN 202223465994 U CN202223465994 U CN 202223465994U CN 218827710 U CN218827710 U CN 218827710U
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- Prior art keywords
- busbar
- bus bar
- cooling pipe
- cooling
- bar body
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- 238000001816 cooling Methods 0.000 claims abstract description 60
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 239000004593 Epoxy Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 20
- 230000008569 process Effects 0.000 description 17
- 230000000694 effects Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The application relates to the technical field of battery packs, and provides a bus bar, an electric control system and a battery pack, which mainly comprise a bus bar body and a cooling pipe attached to the bus bar body; the cooling pipe is internally provided with a liquid flow channel. In this application, through set up supporting on the busbar body the cooling tube for the busbar is in the use, can pass through the cooling tube realizes the effective thermal management to the busbar body, makes the busbar can work in good temperature range for a long time, uses more safely, reliably, is convenient for prolong the life of busbar simultaneously.
Description
Technical Field
The application relates to the technical field of battery packs, in particular to a bus bar, an electric control system and a battery pack.
Background
At present, on the basis of consideration of technology, process maturity and processing cost, fast charging busbars based on a hard copper bar scheme are selected for domestic and foreign mainstream new energy automobiles to electrically connect battery modules; simultaneously, fill busbar fast among the current module all adopts the natural cooling mode, has following shortcoming:
the heat management effect is poor; under some harsh working conditions of high-temperature driving durability, quick charging and the like, the battery core is charged with severe heavy current, the temperature rise of the quick charging busbar is high, the heat dissipation effect of the quick charging busbar is poor under natural cooling, and the service life of the quick charging connector and the BDU is seriously influenced; in addition, be subject to structural layout and natural cooling mode, the current capacity of busbar also can be influenced and receive the restriction, can't satisfy 4C 6C's heavy current operating condition, can lead to the excess temperature to report to the police this moment to influence whole car and charge and experience, and reduce the competitiveness of product.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned shortcoming among the prior art, the purpose of this application is to provide a busbar, electrical system and battery package, can effectively improve the radiating effect based on the busbar to make the busbar can be applicable to the use under the multiple operating mode, improve the competitiveness of product.
The technical means adopted by the application to solve the technical problems are as follows:
the application provides a bus bar, which comprises a bus bar body and a cooling pipe, wherein the cooling pipe is attached to the bus bar body; the cooling pipe is internally provided with a liquid flow channel.
In the implementation process, the cooling pipe is arranged on the bus bar body in a matched mode, so that the bus bar can realize effective heat management on the bus bar body through the cooling pipe in the use process, the bus bar can work in a good temperature range for a long time, the use is safer and more reliable, and the service life of the bus bar is prolonged conveniently.
Preferably, the cooling pipe and the busbar body are of an integral structure.
In the implementation process, the cooling pipe and the busbar body are arranged into an integrated structure, so that the operation efficiency of the busbar during installation can be improved conveniently; and it is convenient to ensure effective contact between the cooling pipe and the bus bar body so that the heat exchange operation can be normally performed.
Preferably, the cooling pipe and the busbar body are connected by brazing.
Preferably, an epoxy powder plastic-impregnated layer is formed on the outer sides of the bus bar body and the cooling pipe.
In the implementation process, the epoxy powder plastic-impregnated layer is formed, so that the electrical insulation requirement of the busbar in use can be conveniently ensured, and the safety performance in use is improved.
Preferably, the bus bar body is provided with an installation groove, and the cooling pipe is installed on the installation groove.
In the implementation process, the installation groove is arranged, so that the cooling pipe can be conveniently and quickly aligned and installed on the bus bar body, and meanwhile, the effective contact area between the cooling pipe and the bus bar body is increased.
Preferably, the mounting groove and the center line of the busbar body are overlapped in the vertical direction.
In the implementation process, the central line of the mounting groove is coincident with the central line of the bus bar body, so that the heat exchange effect of the bus bar body by the cooling pipe can be more uniform, and the heat management effect is better.
Preferably, the cooling pipe is made of copper material.
Preferably, the cooling pipe is a harmonica pipe.
In the implementation process, the cooling pipe is set to be a harmonica pipe, so that a plurality of mutually independent liquid flow channels can be formed in the cooling pipe, and the heat exchange uniformity and the heat exchange efficiency during heat management are further improved.
The application also provides an electric control system which comprises the bus bar.
In the implementation process, by applying the bus bar provided by the application to the electric control system, the bus bar can be suitable for the use of the electric control system under the superposition conditions of high-temperature durable driving, quick charging and the like, so that the application range of the electric control system can be larger; the system can be safer and more reliable when in use, and is convenient for prolonging the service life of the system.
The application also provides a battery pack, which comprises the bus bar.
In the implementation process, by applying the bus bar provided by the application to the battery pack, the bus bar can be suitable for the stacked working conditions of high-temperature durable driving, quick charging and the like in the use of the battery pack, so that the application range of the battery pack can be larger; simultaneously, the cooling tube can be right the busbar body carries out effectual thermal management, can avoid the high temperature under the special operating mode to report to the police so that the busbar can work under good temperature for a long time, can be more safe, reliable during the use, is convenient for improve the market competition of product.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a schematic structural view of a bus bar according to the present application.
Fig. 2 is a schematic view of an end structure of the bus bar of the present application.
Fig. 3 is a schematic structural view of the bus bar body of the present application.
Fig. 4 is a schematic end structure view of the bus bar body of the present application.
Fig. 5 is a schematic cross-sectional structure of the bus bar of the present application.
Description of the labeling:
1-bus bar, 11-bus bar body, 110-mounting groove, 12-cooling pipe, 120-liquid flow channel and 13-epoxy powder plastic-impregnated layer.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. In addition, the embodiments and features of the embodiments of the present application may be combined with each other without conflict. In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention, and the described embodiments are merely a subset of the embodiments of the present invention, rather than a complete embodiment. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that: 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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 5, the present embodiment provides a busbar 1 including a busbar body 11 and a cooling pipe 12 which are arranged in a mating manner. The cooling pipe 12 is attached to a side surface of the busbar body 11, and a liquid flow channel 120 is arranged inside the cooling pipe 12; in use, a cooling medium, such as a cooling liquid, is introduced into the liquid flow channel 120, so that heat exchange with the busbar body 11 is realized through the flow of the cooling medium.
In a preferred embodiment, the cooling pipe 12 and the bus bar body 11 are of an integral structure, such as a brazed connection; in other embodiments, a thermal pressure bonding connection may be used. By providing the cooling pipe 12 and the busbar body 11 as an integrated structure, it is possible to facilitate improvement of the work efficiency in mounting the busbar 1; and facilitates ensuring effective contact between the cooling tube 12 and the bus bar body 11 so that the heat exchange operation can be normally performed.
As a preferable scheme, in this embodiment, after the cooling pipe 12 and the busbar body 11 form an integrated structure, the whole busbar 1 is processed by the epoxy powder plastic-dipping process so as to form the epoxy powder plastic-dipping layer 13 on the outer side of the busbar body 11 and the cooling pipe 12, and the epoxy powder plastic-dipping layer 13 is formed, so that the electrical insulation requirement of the busbar 1 in use can be conveniently ensured, and the safety performance in use can be improved. The specific setting thickness of the epoxy powder plastic-impregnated layer 13 needs to be optimized and adjusted by combining actual parameters, and is not limited specifically here.
Further, an installation groove 110 is provided on an inner side surface of the bus bar body 11, and the cooling pipe 12 is installed in the installation groove 110. By providing the mounting groove 110, it is possible to facilitate quick alignment and mounting of the cooling pipe 12 on the bus bar body 11, and also to increase an effective contact area between the cooling pipe 12 and the bus bar body 11, such as contact between both sides of the cooling pipe 12 and both inner side walls of the mounting groove 110.
As a preferable scheme, in this embodiment, along the vertical direction, the installation groove 110 and the center line of the busbar body 11 are overlapped, so that the heat exchange effect of the cooling pipe 12 on the busbar body 11 can be more uniform, and the heat management effect is better.
As a preferable scheme, the cooling pipe 12 in the present embodiment is disposed in a flat shape to reduce the space occupation of the cooling pipe 12 in the vertical direction after being installed on the busbar body 11. Meanwhile, the cooling pipe 12 is preferably made of copper material, such as copper, brass, copper alloy, etc. with relatively high thermal conductivity.
Further, in the present embodiment, the cooling pipe 12 is provided in the form of a harmonica pipe, as shown in fig. 5; so that a plurality of the liquid flow channels 120 can be formed independently of each other in the cooling tube 12 to further improve the uniformity and efficiency of heat exchange during thermal management.
In the implementation process, the cooling pipe 12 is arranged on the bus bar body 11 in a matched manner, so that the bus bar 1 can realize effective heat management on the bus bar body 11 through the cooling pipe 12 in the use process, the bus bar 1 can work in a good temperature range for a long time, the use is safer and more reliable, and meanwhile, the service life of the bus bar 1 is prolonged conveniently.
Furthermore, thanks to the above-mentioned bus bar 1, an electronic control system is also provided in the present embodiment. By applying the bus bar 1 provided by the application to the electric control system, the bus bar 1 can be suitable for the superposition working conditions of high-temperature durable driving, quick charging and the like in the use of the electric control system, so that the application range of the electric control system can be larger; the system can be safer and more reliable when in use, and is convenient for prolonging the service life of the system.
In this embodiment, the specific structural form of the electronic control system can be referred to in the prior art, and is not described herein.
In addition, also thanks to the bus bar 1 described above, a battery pack is provided in the present embodiment. By applying the bus bar 1 provided by the application to the battery pack, the bus bar 1 can be suitable for the overlapping working conditions of high-temperature durable driving, quick charging and the like in the use of the battery pack, so that the application range of the battery pack can be larger; simultaneously, the cooling tube 12 can be right the busbar body 11 carries out effectual heat management, can make busbar 1 can work under good temperature for a long time, avoids the high temperature warning under the special operating mode, can be more safe, reliable during the use, is convenient for improve the market competition of product.
In this embodiment, the specific structural form of the battery pack can also refer to the prior art, which is not described herein.
At the present stage, the safety and the cost of a new energy vehicle are industrial pain points, a quick charging busbar scheme in the prior art is limited by a structural layout and a natural cooling mode, the overcurrent capacity is also easily limited, the temperature control performance is poor, and if superimposed working conditions such as high-speed climbing and high-power quick charging are met, the temperature rise is very fast, so that the charging experience of the whole vehicle is influenced, and the service life of the whole vehicle is prolonged. For example, under some harsh working conditions of high-temperature driving durability, quick charging and the like, the battery core is charged with intense large current, and the temperature of the quick charging busbar is raised to more than 120 ℃.
In some of the experimental processes, by adopting the scheme provided in this embodiment, at this time, the heat generated by the bus bar 1 can be quickly transferred to the refrigerant inside the liquid cooling pipe 12 through the cooling pipe 12, and then the heat is quickly dissipated in a heat conduction manner through the refrigerant inside the cooling pipe 12. The temperature of the bus bar 1 can be accurately controlled to about 65 ℃ from the original maximum temperature of 125 ℃, the service life of the bus bar 1 can be improved by about 3-5%, the heat management efficiency can be improved by about 5-9%,
the energy consumption of the new energy vehicle can be reduced by about 8-10%.
Meanwhile, the overcurrent capacity of the bus bar 1 is correspondingly improved, the quick charging connector 5, the BDU and the like connected with the bus bar 1 can work in a good temperature range for a long time, and the service life of the BDU can be correspondingly prolonged
The length is about 3 to 10 percent, so that the safety of the battery pack is improved, and the product competitiveness of the new energy vehicle is greatly improved.
The above description is only for the purpose of describing particular embodiments of the present application and is not intended to limit the protection of the present application
To the extent that various modifications and variations will occur to those skilled in the art to which the subject application pertains. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application. Any person skilled in the art can easily think of the changes or substitutions in the technical scope of the present disclosure, and shall also cover the protection scope of the present disclosure. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
It is noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action by 5, without necessarily requiring or requiring that such terms be taken
Implying any such actual relationship or order between such entities or operations. Also, the term
"include," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may also include
Including other elements not expressly listed or inherent to such process, method, article, or apparatus 0. Without further limitation, it is defined by the statement "include one … …
Does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises a said element.
Claims (10)
1. The bus bar is characterized by comprising a bus bar body and a cooling pipe attached to the bus bar body; the cooling pipe is internally provided with a liquid flow channel.
2. The buss bar of claim 1, wherein the cooling tube is a unitary structure with the buss bar body.
3. The busbar according to claim 2, wherein the cooling tube is brazed to the busbar body.
4. The busbar according to claim 2 or 3, wherein an epoxy powder plastic-impregnated layer is formed on the outside of the busbar body and the cooling pipe.
5. The busbar according to claim 4, wherein a mounting groove is provided on the busbar body, and the cooling pipe is mounted on the mounting groove.
6. The busbar according to claim 5, wherein the mounting groove and a center line of the busbar body are arranged to coincide with each other in a vertical direction.
7. The busbar according to claim 1 or 6, wherein the cooling tubes are made of a copper material.
8. The buss bar of claim 7, wherein the cooling tube is a harmonica tube.
9. An electrical control system comprising a busbar according to any one of claims 1 to 8.
10. A battery pack comprising a bus bar as set forth in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223465994.3U CN218827710U (en) | 2022-12-22 | 2022-12-22 | Busbar, electrical system and battery package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223465994.3U CN218827710U (en) | 2022-12-22 | 2022-12-22 | Busbar, electrical system and battery package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218827710U true CN218827710U (en) | 2023-04-07 |
Family
ID=87274239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223465994.3U Active CN218827710U (en) | 2022-12-22 | 2022-12-22 | Busbar, electrical system and battery package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218827710U (en) |
-
2022
- 2022-12-22 CN CN202223465994.3U patent/CN218827710U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |