WO2023103880A1 - 电池冷却系统、电池包及车辆 - Google Patents

电池冷却系统、电池包及车辆 Download PDF

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Publication number
WO2023103880A1
WO2023103880A1 PCT/CN2022/135971 CN2022135971W WO2023103880A1 WO 2023103880 A1 WO2023103880 A1 WO 2023103880A1 CN 2022135971 W CN2022135971 W CN 2022135971W WO 2023103880 A1 WO2023103880 A1 WO 2023103880A1
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WO
WIPO (PCT)
Prior art keywords
cooling
battery
pipeline
cooling system
groove
Prior art date
Application number
PCT/CN2022/135971
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English (en)
French (fr)
Inventor
刘杨彬
Original Assignee
北京车和家汽车科技有限公司
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Application filed by 北京车和家汽车科技有限公司 filed Critical 北京车和家汽车科技有限公司
Publication of WO2023103880A1 publication Critical patent/WO2023103880A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • 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

Definitions

  • the present disclosure relates to the technical field of vehicles, in particular to a battery cooling system, a battery pack and a vehicle.
  • the collector pipes are arranged on both sides of the module, and sufficient design gaps need to be left, and these gaps will occupy the space of the battery pack.
  • the present disclosure provides a battery cooling system, a battery pack and a vehicle.
  • a first aspect of the present disclosure provides a battery cooling system, comprising: a crossbeam, the crossbeam is provided with an escape groove, the escape groove extends along the length direction of the crossbeam, and the escape groove is used for installing a cooling component.
  • the cooling assembly includes a header line and at least one set of cooling lines
  • the collecting pipeline extends along the length direction of the beam
  • the cooling pipeline extends along the width direction, and the end of the cooling pipeline communicates with the collecting pipeline;
  • the collecting pipeline is arranged in the avoidance groove, and the cooling pipeline is connected with the beam.
  • the side wall of the collecting pipeline is provided with an installation hole, and the cooling pipeline is welded to the installation hole.
  • a plurality of the cooling pipelines are arranged on the collecting pipeline, and each of the cooling pipelines is parallel to each other and extends along the width direction.
  • the cooling pipeline is a harmonica tube; the outside of the harmonica tube is a flat plate structure, and there are a plurality of pipes distributed at intervals inside; the pipes extend along the width direction, and the plurality of pipes extend along the height Directional interval distribution.
  • the plurality of pipes distributed at intervals along the height direction there are at least two pipes located above and at least two pipes located below, and the pipes located above and the pipes located below The ends of the pipes away from the header pipeline communicate with each other.
  • the avoidance groove is formed with a support plate, the support plate extends along the length direction L, and the collecting pipeline is arranged above the support plate.
  • an adapter block is provided in the avoidance groove, and the adapter block is respectively connected with the beam and the cooling pipeline, and the adapter block is provided with a Corresponding to the through hole, the collecting pipeline is passed through the through hole.
  • the through hole is a groove provided on the side of the adapter block close to the collecting pipe, the notch of the groove is opposite to the collecting pipe, the The collecting pipeline is arranged in the groove through the notch of the groove.
  • the shape of the groove matches the cross-sectional shape of the header pipe.
  • the cooling pipeline includes an installation section and a cooling section, and the installation section is located in the escape groove.
  • the second aspect of the present disclosure provides a battery pack, which is characterized in that it includes a battery module and the battery cooling system;
  • the battery module includes a plurality of battery cells
  • the battery cooling system is used for cooling the battery module.
  • multiple groups of the cooling pipelines are arranged at intervals along the length direction L of the beam, and the battery module is arranged between two adjacent groups of the cooling pipelines.
  • a third aspect of the present disclosure provides a vehicle, including the battery pack described above.
  • the battery cooling system provided by the embodiments of the present disclosure includes a beam, and the beam is provided with an avoidance groove, which extends along the length direction L of the beam, and the avoidance groove is used for installing cooling components. After the assembly is completed, part of the cooling components can be embedded in the avoidance groove. The space in the battery pack will not be occupied too much, the space occupied by the cooling component is reduced, and the space utilization rate of the battery pack is improved.
  • the battery cooling system has a simple structure, simple assembly, and high assembly efficiency. That is, by embedding part of the cooling components in the avoidance groove, the flattening of the battery pack can be realized, the interior space of the vehicle and the ground clearance of the whole vehicle can be optimized, and the battery pack using the battery cooling system has a compact structure, a small space occupation, and a light weight effect Better and higher safety performance.
  • the battery cooling system provided by the embodiments of the present disclosure is applied to the battery pack. On the one hand, it can realize the vertical installation of the liquid cooling system, save the height space of the battery pack by more than 10mm, and make a great contribution to the vehicle passability, interior space and comfort. , On the other hand, the space inside the battery pack is increased, which can carry more power, and it is more flexible in the model layout and mileage design.
  • FIG. 1 is a schematic structural diagram of a battery cooling system according to an embodiment of the present disclosure
  • FIG. 2 is an exploded view of the battery cooling system according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a crossbeam in the battery cooling system according to an embodiment of the present disclosure
  • FIG. 4 is a schematic front view of the battery cooling system according to an embodiment of the present disclosure.
  • Fig. 5 is the A-A direction sectional view of Fig. 4;
  • Fig. 6 is the B-B direction sectional view of Fig. 4;
  • FIG. 7 is a schematic top view of the battery cooling system according to an embodiment of the present disclosure.
  • the battery pack includes a box body and a battery module arranged in the box body.
  • the box body can be made of aluminum, aluminum alloy or other metal materials, and the box body has an accommodating cavity.
  • the box body is a box structure with an open top, and includes an upper box cover, the size of the upper box cover is equivalent to the size of the opening at the top of the box body, and the upper box cover can be fixed to the opening by bolts and other fasteners.
  • a sealing member can also be arranged between the upper box cover and the box body.
  • the box body is provided with a beam 1, and the beam 1 is connected with the box body.
  • One or more than two battery modules can be accommodated in the housing cavity of the box body, and the battery modules can be arranged side by side along the length direction of the battery pack in the box body, or can be arranged side by side along the width direction W of the battery pack, and each The battery module is fixed to the case.
  • the battery module includes a plurality of battery cells and a frame structure, wherein the battery cells can be secondary batteries that can be used repeatedly for charging and discharging. direction or height direction.
  • the battery unit includes a casing, which may be hexahedral or other shapes, and an accommodating cavity is formed inside the casing for accommodating the electrode assembly and electrolyte.
  • the housing may include metal materials, such as aluminum or aluminum alloy, and may also include insulating materials, such as plastic.
  • the header pipes 21 are arranged on both sides of the module, and sufficient design gaps need to be reserved. These gaps will occupy the space of the battery pack and reduce the energy density of the battery pack.
  • the embodiment of the present disclosure provides a battery cooling system, a battery pack, and a vehicle, which can save installation space. After the assembly is completed, at least part of the cooling components will be embedded in the power battery beam 1, and the battery pack will not be occupied too much. the space inside.
  • the battery cooling system provided by the embodiment of the present disclosure includes a beam 1, and the beam 1 is provided with an avoidance groove 11, and the avoidance groove 11 is along the beam 1 extends in the length direction L, and the avoidance groove 11 is used to install the cooling assembly 2.
  • part of the cooling assembly 2 can be embedded in the avoidance groove 11, which will not occupy too much space in the battery pack and reduce the cooling assembly 2.
  • the occupied space improves the space utilization rate of the battery pack.
  • the battery cooling system has a simple structure, simple assembly, and high assembly efficiency. That is, by embedding part of the cooling assembly 2 in the avoidance groove 11, the flattening of the battery pack can be realized, and the interior space of the vehicle and the ground clearance of the whole vehicle can be optimized, so that the battery pack has a compact structure, takes up little space, has a good weight reduction effect and is safe Higher performance.
  • the battery cooling system provided by the embodiments of the present disclosure is applied to the battery pack.
  • the vertical installation of the liquid cooling system can be realized, and the height space of the battery pack can be saved by more than 10mm, which contributes to the vehicle passability, interior space and comfort. Larger, on the other hand, due to the increased space inside the battery pack, the battery pack can carry more power, making it more flexible in model layout and mileage design.
  • the cooling assembly 2 includes a header pipeline 21 and at least one set of cooling pipelines 22; the header pipeline 21 extends along the length direction L of the beam 1; the cooling pipeline 22 extends along the width direction W, and the collector
  • the pipeline 21 and the cooling pipeline 22 are provided with passages for cooling liquid to pass through, and the end of the cooling pipeline 22 communicates with the collecting pipeline 21; 1 connection.
  • the cooling pipeline 22 is welded to the beam 1 .
  • the collecting pipeline 21 is arranged in the avoidance groove 11, which can surround the collecting pipeline 21 in the beam 1, which plays a protective role and prevents the collecting pipeline 21 from being pressed. When a collision occurs, the collecting pipeline can be reduced. 21 possibility of damage.
  • the collecting pipe 21 can be embedded in the avoidance groove 11, which will not occupy too much space in the battery pack, and reduces the space occupied by the cooling assembly 2.
  • the structure is simple, the assembly is simple, and the assembly efficiency is high. Passability, interior space and comfort are greatly contributed. Due to the increased space inside the battery pack, the battery pack can carry more power, making it more flexible in model layout and mileage design.
  • mounting holes can be provided on the side wall of the collecting pipeline 21, and the cooling pipeline 22 can be welded to the mounting hole, which can effectively improve the connection stability between the cooling pipeline 22 and the collecting pipeline 21, and improve the performance of the battery. package security.
  • the cooling pipeline 22 can be one group, two groups, three groups...
  • a mounting hole is arranged on the collecting pipeline 21, and the cooling pipeline 22 is connected with the mounting hole;
  • the cooling pipeline When two 22 are provided, the collecting pipeline 21 is provided with two installation holes, and the cooling pipeline 22 is connected with the installation holes one by one; when three cooling pipelines 22 are provided, the collecting pipeline 21 is provided with three installation holes, The cooling pipelines 22 are connected to the installation holes one by one, and so on.
  • a plurality of cooling pipelines 22 are arranged on the collecting pipeline 21 in the longitudinal direction L of the beam 1 , and each cooling pipeline 22 is parallel to each other and extends along the width direction W.
  • the cooling pipeline 22 may be a harmonica tube, and the harmonica tube has a planar structure on the outside and a plurality of pipes distributed at intervals inside.
  • the pipes extend along the width direction W, and a plurality of pipes are distributed at intervals along the height direction H. Meanwhile, the cooling pipe 22 is arranged on the side of the battery unit.
  • the plurality of pipes distributed at intervals along the height direction H there are at least two upper pipes and at least two lower pipes, and the upper pipes and the lower pipes are far away from the header pipe.
  • One ends of 21 communicate with each other, so that the cooling medium flows in from one of the upper pipe and the lower pipe, and flows out from the other of the upper pipe and the lower pipe.
  • the avoidance groove 11 is formed with a support plate 111, the support plate 111 extends along the length direction L, the collecting pipeline 21 is arranged above the supporting plate 111, the supporting plate 111 is used to support the collecting pipeline 21, and can The pressure of the collecting pipeline 21 is avoided, the stability of the collecting pipeline 21 is improved, and the safety of the battery pack is improved.
  • the battery cooling system may include two sets of header pipes 21, the two sets of header pipes 21 are arranged at intervals along the height direction H of the beam 1, and one of the two sets of header pipes 21 may be set in The liquid outlet 211 and the other of the two sets of collecting pipes 21 may be provided with a liquid outlet 212 .
  • one of the two sets of header pipes 21 may communicate with the upper pipe, and the other may communicate with the lower pipe.
  • the cooling liquid enters the channel of the collecting pipeline 21 through the liquid inlet 211, and enters the channels of each cooling pipeline 22 during the flow along the collecting pipeline 21, and the cooling liquid enters the channel of the cooling pipeline 22 .
  • the battery unit can be cooled, and the circulated coolant is discharged from the battery cooling system through the liquid outlet 212, which can improve the heat dissipation effect of the battery unit, make the working environment of the battery unit more suitable, and prolong the use of the battery unit life.
  • the battery cooling system Since the battery cooling system is arranged on the side of the battery unit, this method does not take up a large amount of space for the height of the battery pack, reduces the height of the battery pack, and can ensure the ground clearance of the vehicle. That is, by embedding the collecting pipe 21 into the avoidance groove 11, the flattening of the battery pack can be realized, and the interior space of the vehicle and the ground clearance of the whole vehicle can be optimized, so that the battery pack has a compact structure, a small space occupation, good weight reduction effect and safety Higher performance.
  • the battery cooling system provided by the embodiments of the present disclosure is applied to the battery pack. On the one hand, the vertical installation of the liquid cooling system can be realized to save the height space of the battery pack. On the other hand, due to the increased space inside the battery pack, the battery pack It can carry more electricity, and it is more flexible in vehicle layout and mileage design.
  • each set of collecting pipelines 21 is located on the supporting plates 111, which can prevent the collecting pipelines 21 from being overwhelmed, and can Improve the stability of the header pipe 21.
  • the collecting pipeline 21 can also be provided with three groups or more than three groups.
  • the number of support plates 111 is consistent with the number of the collecting pipeline 21, and each group of collecting pipelines 21 on a support plate 111.
  • an adapter block 112 is provided in the avoidance groove 11, and the adapter block 112 is respectively connected with the beam 1 and the cooling pipeline 22, and the adapter block 112 is provided with a through hole corresponding to the header pipeline 21. , The collecting pipeline 21 is penetrated in the through hole.
  • the connecting block 112 and the beam 1 can be connected by welding, or by a fastener 3 .
  • the adapter block 112 is connected to the beam 1 through a fastener 3 , which is easy to install and disassemble, and has high assembly efficiency.
  • installation holes may be provided on the crossbeam 1, and the adapter block 112 may be provided with bolt holes, and the bolts pass through the installation holes and are screwed into the bolt holes.
  • the header pipe 21 abuts against the inner wall of the through hole in the adapter block 112, that is, the header pipe 21 is arranged on the adapter block 112, so that the adapter block 112 provides a
  • the supporting force improves the stability of the collecting pipeline 21 and improves the safety of the battery pack.
  • the through hole is a groove arranged on the side of the adapter block 112 close to the collecting pipeline 21, the notch of the groove is opposite to the collecting pipeline 21, and the collecting pipeline 21 passes through the groove.
  • the notch is arranged in the groove.
  • the groove wall of the groove can provide support for the collecting pipeline 21, which improves the stability of the collecting pipeline 21 and improves the safety of the battery pack.
  • the shape of the groove is adapted to the cross-sectional shape of the header pipe 21, which can increase the contact area between the header pipe 21 and the groove, and make the header pipe 21 and the adapter block 112 more compact. Good contact enables the groove wall to provide stable support for the collecting pipeline 21, which improves the stability of the collecting pipeline 21 and improves the safety of the battery pack.
  • the header pipe 21 is not in contact with the inner wall of the through hole on the adapter block 112, which can reduce the transfer of heat to the beam 1 through the adapter block 112, thereby preventing the heat from being dissipated to the outside of the battery pack, but in this way Otherwise, the adapter block 112 cannot support the header pipe 21 .
  • the cooling pipeline 22 includes an installation section 221 and a cooling section 222 , and the installation section 221 is located in the escape groove 11 .
  • the installation section 221 can be enclosed in the beam 1 to play a protective role. In the event of a collision, the possibility of damage to the installation parts of the collecting pipeline 21 and the cooling pipeline 22 can be reduced.
  • the collecting pipe 21 and the installation section 221 can be embedded in the avoidance groove 11 without occupying too much space in the battery pack, and the structure is simple, the assembly is simple, and the assembly efficiency is high. That is, by embedding part of the cooling assembly 2 into the avoidance groove 11, the flattening of the battery pack can be realized, and the interior space of the vehicle and the ground clearance of the whole vehicle can be optimized. And the safety performance is high.
  • the battery pack provided by the embodiments of the present disclosure includes a battery module and a battery cooling system; the battery module includes a plurality of battery cells; the battery cooling system is used for cooling the battery module.
  • part of the cooling assembly 2 can be embedded in the avoidance groove 11, which does not occupy too much space in the battery pack, reduces the space occupied by the cooling assembly 2, and has a simple structure, simple assembly, and high assembly efficiency. That is, by embedding part of the cooling assembly 2 in the avoidance groove 11, the flattening of the battery pack can be realized, and the interior space of the vehicle and the ground clearance of the whole vehicle can be optimized, so that the battery pack has a compact structure, takes up little space, has a good weight reduction effect and is safe Higher performance.
  • the battery pack provided by the embodiments of the present disclosure can realize the vertical installation of the liquid cooling system, save the height space of the battery pack, and contribute greatly to the vehicle passability, interior space and comfort; on the other hand, due to The space inside the battery pack is increased, so that the battery pack can carry more power, and it is more flexible in the model layout and mileage design.
  • the traditional power battery liquid cooling system is usually installed at the bottom of the battery module, it is constrained by the pressure of the battery module and the upward supporting force of the box in the vertical direction, and is usually fixed by positioning pins or bolts in the plane direction.
  • This method will greatly occupy the space of the power battery, especially the height space, because the height space directly affects the height of the battery pack, which in turn affects the ground clearance of the vehicle.
  • multiple sets of cooling pipelines 22 are arranged at intervals along the length direction L of the beam 1, and the battery module is arranged between two adjacent sets of cooling pipelines 22, which can realize the battery pack.
  • Flattening optimizing the interior space of the vehicle and the ground clearance of the vehicle.
  • the vertical installation of the liquid cooling system can be realized, and the height space of the battery pack can be saved by more than 10mm, which greatly contributes to the vehicle passability, interior space and comfort.
  • the space inside the battery pack is increased to carry more power, and it is more flexible in model layout and mileage design.
  • the cooling pipeline 22 is in contact with the side of the battery unit to increase the heat exchange area.
  • the cooling liquid in the cooling flow channel can dissipate heat from the battery unit, making it work at a suitable temperature and making the battery unit
  • the working environment is more suitable, and the service life of the battery unit is prolonged.
  • the battery unit obtained in this way has a compact structure, a small space, good weight reduction effect and high safety performance.
  • the vehicle provided by the embodiment of the present disclosure includes the battery pack provided by the embodiment of the present disclosure. Since the vehicle provided by the embodiment of the present disclosure has the same advantages as the battery pack provided by the embodiment of the present disclosure, details are not repeated here.
  • a first feature being “on” or “under” a second feature may mean that the first and second features are in direct contact, or that the first and second features are indirect through an intermediary. touch.
  • “above”, “above” and “above” the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • “Below”, “beneath” and “beneath” the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.
  • the terms “one embodiment,” “some embodiments,” “example,” “specific examples,” or “some examples” mean a specific feature, structure, material, or feature described in connection with the embodiment or example. Features are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
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  • Aviation & Aerospace Engineering (AREA)
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  • Battery Mounting, Suspending (AREA)

Abstract

本公开涉及车辆技术领域，尤其涉及一种电池冷却系统、电池包及车辆。本公开提供的电池冷却系统包括：横梁，横梁开设有避让槽，避让槽沿所述横梁的长度方向延伸，所述避让槽用于安装冷却组件。

Description

电池冷却系统、电池包及车辆
相关申请的交叉引用
本申请基于申请号为202123058099.5、申请日为2021年12月07日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本公开涉及车辆技术领域，尤其涉及一种电池冷却系统、电池包及车辆。
背景技术
目前，新能源汽车对动力电池的能量和功率需求越来越高，相应动力电池总成的发热量随之增大，传统的风冷技术已经无法满足高度集成化的动力电池总成需求，液冷方案已经逐渐占据主流。电池液冷系统作为电池包中的关键零部件，其性能会直接影响电池包的热管理能力。
传统的动力电池液冷系统中集流管路布置在模组两侧，需要留出充足的设计间隙，这些间隙会占用电池包的空间。
发明内容
为了解决上述技术问题或者至少部分地解决上述技术问题，本公开提供了一种电池冷却系统、电池包及车辆。
本公开第一方面提供了一种电池冷却系统，包括：横梁，所述横梁开设有避让槽，所述避让槽沿所述横梁的长度方向延伸，所述避让槽用于安装冷却组件。
在一些实施例中，所述冷却组件包括集流管路和至少一组冷却管路；
所述集流管路沿所述横梁的长度方向延伸；
所述冷却管路沿宽度方向延伸，所述冷却管路的端部与所述集流管路连通；
所述集流管路设置于所述避让槽，所述冷却管路与所述横梁连接。
在一些实施例中，所述集流管路的侧壁设置有安装孔，所述冷却管路与所述安装孔焊接。
在一些实施例中，所述集流管路上设有多个所述冷却管路，且每个所述冷却管路相互平行并沿宽度方向延伸。
在一些实施例中，所述冷却管路为口琴管；所述口琴管外部为平板型结构，且内部具有多个间隔分布的管道；所述管道沿宽度方向延伸，多个所述管道沿高度方向间隔分布。
在一些实施例中，沿高度方向间隔分布的多个所述管道中至少有两个位于上方的所述管道与至少有两个位于下方的所述管道，并且位于上方的所述管道与位于下方的所述管道远离所述集流管路的一端彼此连通。
在一些实施例中，所述避让槽形成有支撑板，所述支撑板沿长度方向L延伸，所述集流管路设置于所述支撑板的上方。
在一些实施例中，所述避让槽内设有转接块，所述转接块分别与所述横梁和所述冷却管路连接，所述转接块上设置有与所述集流管路相对应的通孔，所述集流管路穿设于所述通孔中。
在一些实施例中，所述通孔为设置于所述转接块靠近所述集流管路一侧上的凹槽，所述凹槽的槽口与所述集流管路相对，所述集流管路通过所述凹槽的槽口设置于所述凹槽内。
在一些实施例中，所述凹槽的形状与所述集流管路的截面形状相适配。
在一些实施例中，沿宽度方向，所述冷却管路包括安装段和冷却段，所述安装段位于所述避让槽。
本公开第二方面提供了一种电池包，其特征在于，包括电池模组和所述的电池冷却系统；
所述电池模组包括多个电池单元；
所述电池冷却系统用于冷却所述电池模组。
在一些实施例中，多组所述冷却管路沿所述横梁的长度方向L间隔设置，所述电池模组设置于相邻两组所述冷却管路之间。
本公开第三方面提供了一种车辆，包括所述的电池包。
本公开实施例提供的电池冷却系统包括横梁，横梁开设有避让槽，避让槽沿横梁的长度方向L延伸，避让槽用于安装冷却组件，装配完成后，部分的冷却组件可以嵌入避让槽中，不会过多的占用电池包内的空间，降低了冷却组件占用的空间，提高了电池包的空间利用率。
进一步地，该电池冷却系统结构简单，装配简单，装配效率高。即通过部分的冷却组件嵌入避让槽中，可以实现电池包的扁平化，优化车内空间和整车离地间隙，使使用该电池冷却系统的电池包结构紧凑、所占空间小、轻量化效果较好且安全性能较高。本公开实施例提供的电池冷却系统应用到电池包中一方面可以实现液冷系统的纵向安装，节约电池包的高度空间超过10mm，对整车通过性和车内空间以及舒适度的贡献较大，另一方面增大了电池包内空间，可以携带更多的电量，在车型方案布置和里程设计时更加灵活。
附图说明
为了更清楚地说明本公开实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本公开实施例所述电池冷却系统的结构示意图；
图2为本公开实施例所述电池冷却系统的爆炸图；
图3为本公开实施例所述电池冷却系统中横梁的结构示意图；
图4为本公开实施例所述电池冷却系统的主视结构示意图；
图5为图4的A-A向剖视图；
图6为图4的B-B向剖视图；
图7为本公开实施例所述电池冷却系统的俯视结构示意图。
附图标记：1、横梁；11、避让槽；111、支撑板；112、转接块；2、冷却组件；21、集流管路；211、进液口；212、出液口；22、冷却管路；221、安装段；222、冷却段；3、紧固件。
具体实施方式
为了能够更清楚地理解本公开的上述目的、特征和优点，下面将对本公开的方案进行进一步描述。需要说明的是，在不冲突的情况下，本公开的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本公开，但本公开还可以采用其他不同于在此描述的方式来实施；显然，说明书中的实施例只是本公开的一部分实施例，而不是全部的实施例。电池包包括箱体以及设置在箱体的电池模组，箱体可由铝、铝合金或其他金属材料制成，箱体内具有容置腔。在一些实施例中，箱体为顶部敞开的箱体结构，并包括上箱盖，上箱盖的尺寸与箱体顶部的开口的尺寸相当，上箱盖可通过螺栓等固定件固定于开口，从而形成容置腔。同时，为了提高箱体的密封性，在上箱盖与箱体之间还可设置密封件。
在一些实施例中，箱体设有横梁1，横梁1与箱体连接。箱体的容置腔内可容置一个或两个以上的电池模组，电池模组在箱体内可以沿电池包的长度方向并排设置，也可以沿电池包的宽度方向W并排设置，且各电池模组与箱体固定。
在一些实施例中，电池模组包括多个电池单元和框架结构，其中，电池单元可以为能够重复充放电使用的二次电池，多个电池单元相互堆叠设置，堆叠方向可为长度方向、宽度方向或高度方向。
电池单元包括壳体，壳体可为六面体形，也可为其他形状，且该壳体内部形成容纳腔，用于容纳电极组件和电解液。壳体可包括金属材料，例如铝或铝合金等，也可包括绝缘材料，例如塑胶等。
传统的动力电池液冷系统中集流管路21布置在模组两侧，需要留出充足的设计间隙，这些间隙会占用电池包的空间，降低电池包的能量密度。
基于此，本公开实施例提供了一种电池冷却系统、电池包及车辆，可以节约安装空间，装配完成后，至少部分的冷却组件会嵌入在动力电池横梁1内，不会过多占用电池包内的空间。
结合图1、图2、图3、图4、图5、图6和图7所示，本公开实施例提供的电池冷却系统包括横梁1，横梁1开设有避让槽11，避让槽11沿横梁1的长度方向L延伸， 避让槽11用于安装冷却组件2，装配完成后，部分的冷却组件2可以嵌入避让槽11中，不会过多的占用电池包内的空间，降低了冷却组件2占用的空间，提高了电池包的空间利用率。
进一步地，该电池冷却系统结构简单，装配简单，装配效率高。即通过部分的冷却组件2嵌入避让槽11中，可以实现电池包的扁平化，优化车内空间和整车离地间隙，使得电池包结构紧凑、所占空间小、轻量化效果较好且安全性能较高。本公开实施例提供的电池冷却系统应用到电池包中，一方面，可以实现液冷系统的纵向安装，节约电池包的高度空间超过10mm，对整车通过性和车内空间以及舒适度的贡献较大，另一方面，由于增大了电池包内空间，使电池包可以携带更多的电量，在车型方案布置和里程设计时更加灵活。
在一些实施例中，冷却组件2包括集流管路21和至少一组冷却管路22；集流管路21沿横梁1的长度方向L延伸；冷却管路22沿宽度方向W延伸，集流管路21和冷却管路22内设有供冷却液通过的通道，冷却管路22的端部与集流管路21连通；集流管路21设置于避让槽11，冷却管路22与横梁1连接。在一些实施例中，冷却管路22与横梁1焊接。集流管路21设置于避让槽11，可以将集流管路21包围在横梁1内，起到防护作用，避免集流管路21被压到，在发生碰撞时，可以减少集流管路21损坏的可能性。装配完成后，集流管路21可以嵌入避让槽11中，不会过多的占用电池包内的空间，降低了冷却组件2占用的空间，结构简单，装配简单，装配效率高，对整车通过性和车内空间以及舒适度的贡献较大，由于增大了电池包内空间，使电池包可以携带更多的电量，在车型方案布置和里程设计时更加灵活。
在一些实施例中，集流管路21的侧壁可以设置安装孔，冷却管路22可以与安装孔焊接，能够有效的提高冷却管路22和集流管路21的连接稳定性，提高电池包的安全性。
冷却管路22可以是一组、两组、三组……当冷却管路22设置一组时，集流管路21上设置一个安装孔，冷却管路22与安装孔连接；当冷却管路22设置两个时，集流管路21设置两个安装孔，冷却管路22与安装孔一一对应连接；当冷却管路22设置三个时，集流管路21设置三个安装孔，冷却管路22与安装孔一一对应连接，以此类推。
在一些实施例中，横梁1的长度方向L集流管路21上设有多个冷却管路22，且各冷却管路22相互平行，并沿宽度方向W延伸。
在一些实施例中，该冷却管路22可为口琴管，该口琴管外部为平板型结构，且其内部具有多个间隔分布的管道。管道沿宽度方向W延伸，多个管道沿高度方向H间隔分布，同时，该冷却管路22用于设置于电池单元的侧面。
在一些实施例中，沿高度方向H间隔分布的多个管道中至少有两个位于上方的管道与至少有两个位于下方的管道，并且位于上方的管道与位于下方的管道远离集流管路21的一端彼此连通，以使冷却介质从位于上方的管道与位于下方的管道中一者中流入，并从位于上方的管道与位于下方的管道中另一者流出。
在一些实施例中，避让槽11形成有支撑板111，支撑板111沿长度方向L延伸， 集流管路21设置于支撑板111的上方，支撑板111用于支撑集流管路21，可以避免集流管路21被压到，提高了集流管路21的稳定性，提高电池包的安全性。
在一些实施例中，电池冷却系统可以包括两组集流管路21，两组集流管路21沿横梁1的高度方向H间隔设置，两组集流管路21中的一者可以设置进液口211，两组集流管路21中的另一者可以设置出液口212。另外，两组集流管路21中的一者可与位于上方的管道连通，另一者可与位于下方的管道连通。
该电池冷却系统工作时，冷却液通过进液口211进入集流管路21的通道内，沿集流管路21流动过程中进入各冷却管路22的通道内，冷却液在冷却管路22流动的过程中，能够对电池单元进行冷却，循环后的冷却液经出液口212排出电池冷却系统，可以提高电池单元的散热效果，使电池单元的工作环境更加适宜，延长了电池单元的使用寿命。
由于电池冷却系统设置于电池单元的侧面，这种方式不会大幅占用电池包的高度空间，降低了电池包的高度，可以保证整车的离地间隙。即通过集流管路21嵌入避让槽11中，可以实现电池包的扁平化，优化车内空间和整车离地间隙，使得电池包结构紧凑、所占空间小、轻量化效果较好且安全性能较高。本公开实施例提供的电池冷却系统应用到电池包中，一方面，可以实现液冷系统的纵向安装，节约电池包的高度空间，另一方面，由于增大了电池包内空间，使电池包可以携带更多的电量，在车型方案布置和里程设计时更加灵活。
当电池冷却系统包括两组集流管路21时，避让槽11内形成两个支撑板111，每组集流管路21均位于支撑板111上，可以避免集流管路21被压倒，可以提高集流管路21的稳定性。
当然集流管路21还可以设置三组或三组以上，为了提高集流管路21的稳定性，支撑板111的数量与集流管路21的数量一致，每组集流管路21均位于一个支撑板111上。
在一些实施例中，避让槽11内设有转接块112，转接块112分别与横梁1和冷却管路22连接，转接块112上设置有与集流管路21相对应的通孔，集流管路21穿设于通孔中。在一些实施例中，转接块112与横梁1可以通过焊接连接，也可以通过紧固件3连接。在一些实施例中，转接块112与横梁1通过紧固件3连接，安装拆卸简单，装配效率高。在一些实施例中，横梁1上可以设置安装孔，转接块112设有螺栓孔，螺栓穿过安装孔与螺栓孔螺纹连接。
在一些实施例中，集流管路21与转接块112中通孔的内壁抵接，即集流管路21设置于转接块112上，使转接块112对集流管路21提供支撑力，提高了集流管路21的稳定性，提高电池包的安全性。
在一些实施例中，通孔为设置于转接块112靠近集流管路21一侧上的凹槽，凹槽的槽口与集流管路21相对，集流管路21通过凹槽的槽口设置于凹槽内。凹槽的槽壁可以对集流管路21提供支撑力，提高了集流管路21的稳定性，提高电池包的安全性。
在一些实施例中，凹槽的形状与集流管路21的截面形状相适配，可以增大集流管 路21与凹槽的接触面积，使集流管路21与转接块112更好的接触，使凹槽的槽壁可以对集流管路21提供稳定的支撑力，提高了集流管路21的稳定性，提高电池包的安全性。
在一些实施例中，集流管路21与转接块112上的通孔的内壁不接触，这样可以减少热量通过转接块112传递给横梁1，进而防止热量散失至电池包外，但是这样的话，转接块112不能对集流管路21起到支撑作用。
在一些实施例中，沿宽度方向W，冷却管路22包括安装段221和冷却段222，安装段221位于避让槽11。可以将安装段221包围在横梁1内，起到防护作用，在发生碰撞时，可以减少集流管路21与冷却管路22的安装部位损坏的可能性，
装配完成后，集流管路21和安装段221可以嵌入避让槽11中，不会过多的占用电池包内的空间，结构简单，装配简单，装配效率高。即通过部分的冷却组件2嵌入避让槽11中，可以实现电池包的扁平化，优化车内空间和整车离地间隙，这样获得的电池包结构紧凑、所占空间小、轻量化效果较好且安全性能较高。
本公开实施例提供的电池包包括电池模组和的电池冷却系统；电池模组包括多个电池单元；电池冷却系统用于冷却电池模组。装配完成后，部分的冷却组件2可以嵌入避让槽11中，不会过多的占用电池包内的空间，降低了冷却组件2占用的空间，结构简单，装配简单，装配效率高。即通过部分的冷却组件2嵌入避让槽11中，可以实现电池包的扁平化，优化车内空间和整车离地间隙，使得电池包结构紧凑、所占空间小、轻量化效果较好且安全性能较高。本公开实施例提供的电池包，一方面，可以实现液冷系统的纵向安装，节约电池包的高度空间，对整车通过性和车内空间以及舒适度的贡献较大，另一方面，由于增大了电池包内空间，使电池包可以携带更多的电量，在车型方案布置和里程设计时更加灵活。
另外，由于传统的动力电池液冷系统通常安装在电池模组底部，在垂直方向受电池模组压力和箱体向上承托力的约束，在平面方向通常靠定位销或螺栓固定。这种方式会大幅占用动力电池的空间，尤其是高度空间，由于高度空间直接影响了电池包的高度，进而影响到整车的离地间隙。
基于此，本公开实施例提供的电池包中，多组冷却管路22沿横梁1的长度方向L间隔设置，电池模组设置于相邻两组冷却管路22之间，可以实现电池包的扁平化，优化车内空间和整车离地间隙，一方面可以实现液冷系统的纵向安装，节约电池包的高度空间超过10mm，对整车通过性和车内空间以及舒适度的贡献较大。另一方面增大了电池包内空间可以携带更多的电量，在车型方案布置和里程设计时更加灵活。
通过冷却管路22与电池单元侧面接触以提升换热面积，电池单元工作时，该冷却流道内的冷却液能够对电池单元起到散热的作用，使其在适宜的温度下工作，使电池单元的工作环境更加适宜，延长了电池单元的使用寿命，这样获得的电池单元结构紧凑、所占空间小、轻量化效果较好且安全性能较高。
本公开实施例提供的车辆包括本公开实施例提供的电池包。由于本公开实施例提供的车辆与本公开实施例提供的电池包具有相同的优势，在此不再赘述。
在本公开中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接或彼此可通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本公开中的具体含义。
在本公开中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本公开中，术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管已经示出和描述了上述实施例，可以理解的是，上述实施例是示例性的，不能理解为对本公开的限制，本领域普通技术人员对上述实施例进行的变化、修改、替换和变型均在本公开的保护范围内。

Claims (14)

  1. 一种电池冷却系统，包括：横梁和冷却组件；所述横梁开设有避让槽，所述避让槽沿所述横梁的长度方向延伸，所述避让槽用于安装所述冷却组件。
  2. 根据权利要求1所述的电池冷却系统，其中，所述冷却组件包括集流管路和至少一组冷却管路；
    所述集流管路沿所述横梁的长度方向延伸；
    所述冷却管路沿宽度方向延伸，所述冷却管路的端部与所述集流管路连通；
    所述集流管路设置于所述避让槽，所述冷却管路与所述横梁连接。
  3. 根据权利要求2所述的电池冷却系统，其中，所述集流管路的侧壁设置有安装孔，所述冷却管路与所述安装孔焊接。
  4. 根据权利要求2或3所述的电池冷却系统，其中，所述集流管路上设有多个所述冷却管路，且每个所述冷却管路相互平行并沿宽度方向延伸。
  5. 根据权利要求2至4中任一项所述的电池冷却系统，其中，所述冷却管路为口琴管；所述口琴管外部为平板型结构，且内部具有多个间隔分布的管道；所述管道沿宽度方向延伸，多个所述管道沿高度方向间隔分布。
  6. 根据权利要求5所述的电池冷却系统，其中，沿高度方向间隔分布的多个所述管道中至少有两个位于上方的所述管道与至少有两个位于下方的所述管道，并且位于上方的所述管道与位于下方的所述管道远离所述集流管路的一端彼此连通。
  7. 根据权利要求2至6中任一项所述的电池冷却系统，其中，所述避让槽形成有支撑板，所述支撑板沿长度方向延伸，所述集流管路设置于所述支撑板的上方。
  8. 根据权利要求2至7中任一项所述的电池冷却系统，其中，所述避让槽内设有转接块，所述转接块分别与所述横梁和所述冷却管路连接，所述转接块上设置有与所述集流管路相对应的通孔，所述集流管路穿设于所述通孔中。
  9. 根据权利要求8所述的电池冷却系统，其中，所述通孔为设置于所述转接块靠近所述集流管路一侧上的凹槽，所述凹槽的槽口与所述集流管路相对，所述集流管路通过所述凹槽的槽口设置于所述凹槽内。
  10. 根据权利要求9所述的电池冷却系统，其中，所述凹槽的形状与所述集流管路的截面形状相适配。
  11. 根据权利要求2至10中任一项所述的电池冷却系统，其中，沿宽度方向，所述冷却管路包括安装段和冷却段，所述安装段位于所述避让槽。
  12. 一种电池包，其中，包括电池模组和权利要求2至11中任一项所述的电池冷却系统；
    所述电池模组包括多个电池单元；
    所述电池冷却系统用于冷却所述电池模组。
  13. 根据权利要求12所述的电池包，其中，多组所述冷却管路沿所述横梁的长度方向间隔设置，所述电池模组设置于相邻两组所述冷却管路之间。
  14. 一种车辆，包括权利要求12或13所述的电池包。
PCT/CN2022/135971 2021-12-07 2022-12-01 电池冷却系统、电池包及车辆 WO2023103880A1 (zh)

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