Collecting pipe fitting, heat management assembly, battery and electric equipment

Abstract

The invention discloses a collecting pipe fitting, a heat management assembly, a battery and electric equipment. The collecting pipe fitting comprises a pipe main body; a plurality of first flow channel connectors and a plurality of second flow channel connectors are arranged, and at least two second flow channel connectors are located on the two sides of the first flow channel connector respectively in the extending direction of the pipe body; and the separation structure is arranged in the pipe main body, the first flow channel connectors and the second flow channel connectors are separated in the pipe main body through the separation structure, and the multiple second flow channel connectors communicate in the pipe main body. According to the collecting pipe fitting disclosed by the invention, the separation structure is arranged in the pipe main body, so that the production cost and the occupied space of the heat exchange management assembly can be reduced, the assembling steps and the mounting space of the heat exchange management assembly can be reduced, and the temperature uniformity of the battery can be improved, so that the temperature uniformity effect of the battery can be improved, and the service life of the battery can be prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of batteries, and in particular to a current collecting pipe, a thermal management component, a battery and an electrical device. Background Art

[0002] In order to effectively dissipate high temperature in the battery pack or efficiently heat up low temperature, a liquid cooling plate is generally arranged at the bottom of the battery cell. A certain flow of heat exchange fluid is passed through the liquid cooling plate to dissipate heat from the battery pack to ensure that the battery pack operates within a suitable temperature range. The liquid cooling plates arranged at the bottom of the battery cell are mainly stamped water cooling plates and harmonica tube water cooling plates. The harmonica type water cooling plates currently used are generally arranged in series, with liquid entering at one end of the harmonica tube and liquid exiting at the other end. This will cause a large temperature difference in the battery cell and uneven temperature distribution, which will affect the safe and reliable operation of the battery pack and reduce the service life of the battery pack. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a collector pipe, which can reduce the production cost and occupied space of the heat management component, reduce the assembly steps and installation space of the heat management component, and improve the temperature uniformity of the battery, thereby improving the temperature uniformity effect of the battery and extending the service life of the battery.

[0004] The present invention also provides a thermal management component having the above-mentioned collecting pipe component.

[0005] The present invention also provides a battery having the thermal management component.

[0006] The present invention also provides an electrical device having the thermal management component.

[0007] According to the first aspect of the present invention, the collecting pipe assembly includes: a pipe body; a first flow channel interface and a second flow channel interface, wherein the second flow channel interface is multiple and, along the extension direction of the pipe body, at least two of the second flow channel interfaces are respectively located on both sides of the first flow channel interface; a partition structure, wherein the partition structure is arranged inside the pipe body, the partition structure separates the first flow channel interface and the second flow channel interface inside the pipe body, and the multiple second flow channel interfaces are connected inside the pipe body.

[0008] According to the collecting pipe fitting of the present invention, by setting a partition structure in the tube body for separating the first flow channel interface and multiple second flow channel interfaces, and the multiple second flow channel interfaces are connected in the tube body, the first flow channel interface and the second flow channel interface can be respectively formed as the input end and the output end of the heat exchange flow channel, and then one tube body can be used to complete the work of liquid intake and liquid discharge, reducing the number of collecting pipe fittings used, and at the same time, the use of external connecting pipes can also be reduced, thereby reducing the production cost and occupied space of the heat exchange management component, and reducing the assembly steps and installation space of the thermal management component; in addition, the second flow channel interface includes multiple, and at least two second flow channel interfaces are located on both sides of the first flow channel interface, so that the heat exchange fluid can flow from the surrounding area of ​​the battery to the middle area to achieve heat exchange, and the heat exchange fluid can also flow from the middle area of ​​the battery to the surrounding area to achieve heat exchange, thereby improving the temperature uniformity of the battery and extending the service life of the battery.

[0009] In some embodiments, the collecting pipe further includes a first joint and a second joint, the first joint is connected to the first flow channel interface through the space in the pipe body, and the second joint is connected to the second flow channel interface through the space in the pipe body.

[0010] By providing the first joint and the second joint, this embodiment can provide the tube body with the liquid required for heat exchange and discharge the liquid after heat exchange, thereby achieving heat exchange for the battery and improving the reliability of the battery.

[0011] In some embodiments, one of the first connector and the second connector is an input connector and the other is an output connector.

[0012] In this embodiment, by setting one of the first connector and the second connector as an input connector and the other as an output connector, liquid can be introduced and discharged, thereby achieving heat exchange for the battery and improving the reliability of the battery.

[0013] In some embodiments, the tube body is divided into a first space and a second space that are independent of each other by the partition structure. The first space is connected to the first flow channel interface, and the second space is connected to the second flow channel interface. Along the extension direction of the tube body, the second space includes a first section, a second section, and a third section that are connected in sequence. The first section and the third section are respectively located on both sides of the first space, and the second section is side by side with the first space.

[0014] In this embodiment, by setting the first space and the second space to be independent of each other and not connected to each other, two independent flow channels can be formed inside the tube body, so that the inflow and outflow of the heat exchange fluid do not interfere with each other. At the same time, the first space and the second space are arranged side by side, which can reduce the size of the tube body and thus reduce the space occupied by the collecting pipe.

[0015] In some embodiments, the partition structure includes a first partition plate and a second partition plate, the first partition plate is used to separate the second section and the first space, the second partition plate includes at least two and is respectively located at both ends of the first partition plate along the extension direction of the tube body, the second partition plate is used to separate the first section and the first space, and the third section and the first space.

[0016] In this embodiment, by providing the first partition plate and the second partition plate, two independent spaces can be formed inside the tube body, so that the inflow and outflow of liquids do not interfere with each other, thereby improving the heat exchange effect of the battery.

[0017] In some embodiments, a length dimension of the first dividing plate along an extension direction of the tube body is greater than or equal to a length dimension of the second segment.

[0018] This embodiment can effectively prevent the first space and the second section from being connected to each other by setting the length of the first partition plate along the extension direction of the tube body to be greater than or equal to the length of the second section, thereby improving the sealing of the first space and the second space.

[0019] In some embodiments, along the extension direction of the tube body, the first partition plate extends from the second section to at least one end of the tube body, and the first partition plate is also provided with at least one water hole, which passes through the thickness direction of the first partition plate, and the water hole is located at the position of the first partition plate corresponding to the first section, and / or the water hole is located at the position of the first partition plate corresponding to the third section.

[0020] In this embodiment, by arranging the first partition plate to extend to at least one end of the tube body, it is possible to facilitate the positioning of the first partition plate inside the tube body, thereby improving the convenience and accuracy of installing the first partition plate and the tube body. At the same time, a water hole is formed on the extension section beyond the second section, so that the second space and the second flow channel interface can be kept in a state of communication, thereby realizing the liquid inlet and liquid outlet of the heat exchange pipeline, and completing the heat exchange of the battery.

[0021] In some embodiments, a convex rib is provided on the inner wall surface of the tube body, the convex rib extends along the extension direction of the tube body, and one side of the first partition plate in the thickness direction abuts against the convex rib.

[0022] By setting convex ribs, this embodiment can facilitate the positioning of the first partition plate in the tube body, thereby improving the installation convenience and accuracy of the first partition plate and the tube body; at the same time, it can also increase the connection area between the first partition plate and the tube body, thereby improving the connection stability and sealing of the first partition plate and the tube body.

[0023] In some embodiments, there are multiple convex ribs, and the multiple convex ribs are arranged at intervals along the circumference of the tube body, and two sides of the first partition plate in the thickness direction are respectively abutted against different convex ribs.

[0024] In this embodiment, by providing a plurality of convex ribs, and the two sides of the first partition plate in the thickness direction are respectively abutted against different convex ribs, the first partition plate can be directly inserted between two adjacent convex ribs for positioning, thereby improving the installation convenience and accuracy of the first partition plate and the tube body; at the same time, the connection area between the first partition plate and the tube body can be increased, thereby improving the connection stability and sealing of the first partition plate and the tube body.

[0025] In some embodiments, the first separator plate and the second separator plate are connected by brazing.

[0026] In this embodiment, the first partition plate and the second partition plate are connected by brazing, so that the connection sealing of the first partition plate and the second partition plate can be met, and the appearance and production efficiency of the collecting pipe component can be improved.

[0027] In some embodiments, both the first partition plate and the second partition plate are sealed and connected to the inner wall surface of the tube body.

[0028] In this embodiment, the first partition plate and the second partition plate are both sealed and connected to the inner wall surface of the tube body, so that a first space and a second space that are not connected can be formed in the tube body.

[0029] In some embodiments, the first partition plate and the tube body are integrally formed, and the second partition plate is connected to the first partition plate and the tube body by brazing.

[0030] In this embodiment, the first partition plate and the tube body are integrally formed, which can reduce the number of assembly steps of the first partition plate and the tube body, thereby increasing the production rate of the collecting tube and reducing the production cost of the collecting tube.

[0031] In some embodiments, a socket penetrating the tube body is formed on the tube body, at least a portion of the second partition plate extends into the tube body through the socket, and the first partition plate is sealed to the peripheral wall and / or peripheral edge of the socket.

[0032] In this embodiment, by providing a plug hole on the tube body, the connection convenience between the second partition plate and the tube body can be improved, thereby improving the assembly convenience of the collecting pipe fitting and improving the assembly efficiency.

[0033] In some embodiments, a slot is formed on the first partition plate, and in a projection plane perpendicular to the insertion direction of the second partition plate, the projection of the slot at least partially overlaps with the projection of the insertion hole, and one end of the second partition plate extending into the tube body fits into the slot and is connected to the first partition plate.

[0034] In this embodiment, a slot is provided on the first partition plate, so that the second partition plate can be positioned on the first partition plate, thereby facilitating the assembly and welding of the first partition plate and preventing the second partition plate from shifting during welding, causing assembly difficulties and reducing production efficiency. At the same time, the slot has a simple structure and is convenient to design, which can reduce production difficulty and production costs.

[0035] In some embodiments, at least one end of the first partition plate in the width direction has a connecting plate section, the connecting plate section extends along the inner wall of the tube body and fits with the inner wall of the tube body, and the slot is formed in the connecting plate section and penetrates the connecting plate section along the thickness direction of the connecting plate section.

[0036] This embodiment can increase the connection area between the first partition plate and the pipe body by providing the connecting plate segment, thereby increasing the connection stability between the first partition plate and the pipe body. At the same time, the slot is formed in the connecting plate segment, which can reduce the production complexity of the first partition plate and reduce the production cost.

[0037] In some embodiments, the second partition plate is disposed perpendicular to the first partition plate.

[0038] In this embodiment, by setting the second partition plate perpendicular to the first partition plate, the structure can be simplified, the production complexity of the collecting pipe can be reduced, and the convenience of inserting the first partition plate and the second partition plate can be improved, thereby improving the assembly efficiency of the collecting pipe.

[0039] In some embodiments, the collecting pipe further includes an end cover, at least one end of the tube body is open, and the end cover seals the open portion of the tube body and is sealed and connected to the tube body.

[0040] By providing the end cap, this embodiment can effectively prevent the liquid from flowing out from the open side of the tube body and causing damage to the battery, thereby improving the reliability of the battery. In addition, by providing at least one end of the tube body to be open, the assembly convenience of the current collecting tube can be increased, thereby improving the production efficiency of the current collecting tube.

[0041] In some embodiments, the end cap has a protrusion protruding toward the inside of the tube body, and the protrusion is connected to the inner tube wall of the tube body.

[0042] In this embodiment, by providing the end cover with a convex portion protruding toward the inside of the tube body, the contact area between the end cover and the tube body can be increased, thereby increasing the sealing effect of the end cover. At the same time, the occupied area of ​​the end cover can be reduced, thereby reducing the length direction size of the collecting pipe piece and reducing the installation space of the collecting pipe piece.

[0043] In some embodiments, the tube body is a rectangular tube, the first flow channel interface and the second flow channel interface are formed on one side surface of the tube body, and the first joint and the second joint are formed on the other side surface of the tube body.

[0044] By setting the tube body as a rectangular tube, this embodiment can reduce the overall weight of the collector, and further reduce the overall weight of the thermal management component, thereby improving the lightweight of the battery; at the same time, it can also reduce the production cost of the collector and increase the installation stability of the collector. In addition, the first flow channel interface and the second flow channel interface are formed on the surface of one side of the tube body, and the first joint and the second joint are formed on the surface of the other side of the tube body, which can effectively avoid the first joint and the second joint from interfering with the heat exchange pipeline, thereby increasing the heat exchange area of ​​the heat exchange pipeline and improving the heat exchange effect of the thermal management component.

[0045] In some embodiments, the partition structure includes a first partition plate extending along the length direction of the tube body, the first partition plate is inclined relative to the width direction and thickness direction of the tube body, and the first flow channel interface, the second flow channel interface, the first joint and the second joint are all located on the same side of the first partition plate in the thickness direction.

[0046] This embodiment can effectively prevent the first partition plate from interfering with the connection between the first flow channel interface and the first joint and the connection between the second flow channel interface and the second joint by setting the first partition plate inclined relative to the width direction and the thickness direction of the tube body, thereby realizing the circulation heat exchange of the battery.

[0047] In some embodiments, a first connecting flange is disposed at a periphery of the first flow channel interface, and a second connecting flange is disposed at a periphery of the second flow channel interface.

[0048] This embodiment can increase the contact area between the first flow channel interface and the second flow channel interface and the heat exchange pipe by providing the first connection flange and the second connection flange, thereby increasing the connection stability between the heat exchange pipe and the first flow channel interface and the second flow channel interface.

[0049] A thermal management component according to a second aspect of the present invention comprises a thermal management component and a collecting pipe component according to the first aspect of the present invention, wherein the thermal management component is provided with a first opening and a second opening connected to an internal flow channel, wherein the first opening is connected to the first flow channel interface, and the second opening is connected to the second flow channel interface.

[0050] According to the thermal management assembly of the present invention, the overall performance of the thermal management assembly is improved by providing the collector member of the first aspect.

[0051] In some embodiments, a heat exchange channel is disposed inside the thermal management component, and the first opening and the second opening are respectively an input port and an output port of the heat exchange channel.

[0052] This embodiment can facilitate the circulation of heat exchange fluid by providing a heat exchange channel, thereby enabling the heat exchange of the thermal management component with the battery, thereby improving the reliability of the battery.

[0053] In some embodiments, when the thermal management component is used to heat the battery cell, the second flow channel interface is connected to the input port of the heat exchange channel, and the first flow channel interface is connected to the output port of the heat exchange channel; when the thermal management component is used to cool the battery cell, the first flow channel interface is connected to the input port of the heat exchange channel, and the second flow channel interface is connected to the output port of the heat exchange channel.

[0054] In this embodiment, when the thermal management component is used to heat the battery cell, the second flow channel interface is connected to the input port of the heat exchange flow channel, and the first flow channel interface is connected to the output port of the heat exchange flow channel; when the thermal management component is used to cool the battery cell, the first flow channel interface is connected to the input port of the heat exchange flow channel, and the second flow channel interface is connected to the output port of the heat exchange flow channel. This allows the flow direction of the heat exchange fluid to be variable, and the flow direction of the heat exchange fluid can be selected according to the temperature difference between the center and the periphery of the battery, thereby reducing the temperature difference of the battery, improving the overall temperature uniformity of the battery, and thus increasing the service life of the battery.

[0055] A battery according to a third aspect of the present invention comprises a battery cell and a thermal management component according to the second aspect of the present invention, wherein the thermal management component is used for heat exchange with the battery cell.

[0056] According to the battery of the present invention, the thermal management component of the second aspect is provided, thereby improving the overall performance of the battery.

[0057] An electric device according to a fourth aspect of the present invention comprises a thermal management component according to the second aspect of the present invention.

[0058] According to the electrical equipment of the present invention, the overall performance of the electrical equipment is improved by providing the thermal management component of the second aspect.

[0059] In some embodiments, the electrical equipment also includes a thermal management input module and a thermal management output module, an input pipe and an output pipe, the collecting pipe includes a first joint and a second joint, the first joint is connected to the first flow channel interface through the space in the pipe body, the second joint is connected to the second flow channel interface through the space in the pipe body, the input pipe connects the thermal management input module and the second joint, and the output pipe connects the thermal management output module and the first joint.

[0060] This embodiment can realize cyclic heat exchange of the thermal management components and improve the heat exchange effect of the battery by setting a thermal management input module, a thermal management output module, an input pipe and an output pipe. At the same time, the heat exchange fluid can be switched according to the operating temperature of the battery, thereby increasing the service life of the battery.

[0061] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 is a schematic diagram of a vehicle according to an embodiment of the present invention;

[0063] Figure 2 is a schematic diagram of a battery according to an embodiment of the present invention;

[0064] Figure 3 is an exploded diagram of a battery according to an embodiment of the present invention;

[0065] Figure 4 is an exploded view of a battery according to some other embodiments of the present invention;

[0066] Figure 5 is a schematic diagram of a thermal management assembly according to an embodiment of the present invention;

[0067] Figure 6 is an exploded view of a current collecting pipe according to an embodiment of the present invention;

[0068] Figure 7 yes Figure 6 A schematic diagram of the first joint shown in ;

[0069] Figure 8 yes Figure 6 A schematic diagram of the second partition plate described in;

[0070] Fig. 9 is a partial cross-sectional view of a thermal management assembly according to an embodiment of the present invention;

[0071] Fig.10 is a schematic diagram of a current collecting pipe according to some other embodiments of the present invention;

[0072] Fig.11 yes Fig.10 A schematic diagram of the first partition plate shown in ;

[0073] Fig.12 is a schematic diagram of a current collecting pipe according to some further embodiments of the present invention;

[0074] Fig.13 yes Figure 6 A schematic diagram of the first partition plate shown in ;

[0075] Fig.14 is a schematic diagram of a current collecting pipe member according to an embodiment of the present invention from another angle;

[0076] Fig.15 yes Fig.14 A schematic diagram of the end cap shown in ;

[0077] Fig.16 yes Fig.14 A schematic diagram of the tube body shown in ;

[0078] Fig.17 is a partial cross-sectional view from another angle of a thermal management component according to an embodiment of the present invention;

[0079] Fig.18 is a partial cross-sectional view at another angle of a thermal management component according to an embodiment of the present invention;

[0080] Fig.19 is a schematic diagram of a thermal management component according to an embodiment of the present invention from another angle.

[0081] Reference numerals:

[0082] 1. Vehicles;

[0083] 1000. Battery;

[0084] 100. Thermal management components;

[0085] 10. Manifold; 11. Pipe body; 111. First space; 112. Second space; 113. Jack; 114. Rib; 12. First flow channel interface; 121. First connection flange; 13. Second flow channel interface; 131. Second connection flange; 14. Partition structure; 141. First partition plate; 1411. Water hole; 1412. Slot; 1413. Connection plate section; 142. Second partition plate; 15. First joint; 16. Second joint; 17. End cover;

[0086] 20. Thermal management components;

[0087] 200, battery cell; 300, box body; 301, accommodating cavity; 302, main box; 303, cover plate; 304, bottom guard plate;

[0088] 2000, controller; 3000, motor. DETAILED DESCRIPTION

[0089] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0090] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the terms "including" and "having" in the specification and claims of the present invention and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0091] In the description of the embodiments of the present invention, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present invention, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0092] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0093] In the description of the embodiments of the present invention, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0094] In the description of the embodiments of the present invention, the term "plurality" refers to more than two (including two).

[0095] In the description of the embodiments of the present invention, the orientations or positional relationships indicated by technical terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention.

[0096] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0097] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0098] During the use of the battery, in order to ensure the safety performance of the battery, a water cooling plate is generally installed on the top of the battery or the bottom of the module, or an air cooling mode is used for heat dissipation. The water-cooling plates currently in use are mostly integrated water-cooling plates and harmonica tube-type water-cooling plates, among which the harmonica tube-type water-cooling plates generally include a front-end collecting tube, a rear-end collecting tube, and a plurality of harmonica tubes respectively connected to the front-end collecting tube and the rear-end collecting tube at both ends. The heat exchange fluid generally enters from the front-end collecting tube, and then is diverted to a plurality of harmonica tubes through the collecting tube, and then is discharged through the rear-end collecting tube. Alternatively, the water inlet and the water outlet are all arranged on the front-end collecting tube, and then a spacer is arranged in the front-end collecting tube to separate the water inlet and the water outlet in the length direction of the collecting tube to form a U-shaped loop. However, this will cause the heat exchange fluid to flow out from one end of the collecting tube in the length direction to the harmonica tube, and the heat exchange fluid in the harmonica tube will then return from the harmonica tube to the other end of the collecting tube in the length direction. The water temperature gradually deteriorates in the water cooling direction, forming a large temperature difference, which in turn causes a large temperature difference in the cold plate, resulting in poor uniformity of the battery. In addition, in order to solve the problem of poor temperature uniformity, the prior art not only provides a spacer inside the collecting tube, but also connects a connecting pipe to the outside of the collecting tube, and uses a Y-shaped connecting pipe to connect the two ends of the collecting tube, so that the heat exchange fluid can flow out of the two ends of the collecting tube and then flow back from the middle, or flow out from the middle of the collecting tube and then flow back from the two ends of the throttling tube; however, this will cause the collecting tube section to require a larger installation space, which may in turn cause the external size of the battery to increase.

[0099] Based on the above considerations, in order to solve the problem of how to improve the temperature uniformity of the battery while reducing the installation space required for the harmonica tube water cooling plate, a collecting pipe fitting is designed. By providing a partition structure in the tube body of the collecting pipe fitting, the first flow channel interface and the second flow channel interface are separated. In this way, one tube body can be used to complete the work of liquid intake and discharge, thereby reducing the number of collecting pipe fittings used, thereby reducing the installation space of the harmonica tube water cooling plate; at the same time, by providing the second flow channel interface including multiple, multiple second flow channel interfaces flow in the tube body, and at least two second flow channel interfaces are respectively located on both sides of the first flow channel interface. In this way, the space inside the tube body can be used to connect multiple different heat exchange flow channels, thereby reducing the use of external connecting pipes while improving the temperature uniformity of the battery.

[0100] When assembling the battery, since the partition structure is arranged inside the tube body, it is only necessary to assemble the heat exchange channel according to the battery size, and then assemble the heat exchange pipe and the collecting pipe fitting and weld them into shape, thereby improving the assembly efficiency of the battery. At the same time, since the partition structure is arranged inside the tube body and can connect multiple heat exchange channels, the use of external parts can be reduced, and the production cost and installation space of the water cooling plate can be reduced.

[0101] The collector pipe disclosed in the present application can be used in electrical devices that use batteries as power sources or various energy storage systems that use batteries as energy storage elements. Electrical devices can be, but are not limited to, mobile phones, tablets, laptops, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, etc. Among them, electric toys can include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0102] For the convenience of description, the following embodiments are described by taking a vehicle 1 as an example of an electrical device according to an embodiment of the present invention.

[0103] Reference Figure 1 , Figure 1 A schematic diagram of a vehicle 1 provided for some embodiments of the present invention. Vehicle 1 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 1000 is provided inside the vehicle 1, and the battery 1000 may be provided at the bottom, the head or the tail of the vehicle 1. The battery 1000 may be used to power the vehicle 1, for example, the battery 1000 may be used as an operating power source for the vehicle 1. The vehicle 1 may also include a controller 2000 and a motor 3000, and the controller 2000 is used to control the battery 1000 to power the motor 3000, for example, for the starting, navigation and working power requirements of the vehicle 1 during driving.

[0104] In some embodiments of the present invention, the battery 1000 can be used not only as an operating power source for the vehicle 1 , but also as a driving power source for the vehicle 1 , replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1 .

[0105] Reference Figure 2-Figure 4 , Figure 2 is a schematic diagram of a battery 1000 according to some embodiments of the present invention, Figure 3 is an exploded view of a battery 1000 according to some embodiments of the present invention, Figure 4Exploded diagram of a battery 1000 according to some other embodiments of the present invention. The battery 1000 includes a housing 300, a battery cell 200 and a thermal management component 100. The housing 300 has a receiving cavity 301. The battery cell 200 is received in the receiving cavity 301 of the housing 300. The thermal management component 100 is disposed between the battery cell 200 and the housing 300. The housing 300 is used to provide a receiving space for the battery cell 200. The housing 300 may adopt a variety of structures. In some embodiments, the housing 300 may include a first part (e.g., a main housing 302 described below) and a second part (e.g., a cover plate 303 described below). The first part and the second part cover each other, and the first part and the second part together define a receiving space for receiving the battery cell 200. The second part can be a hollow structure with one end open, and the first part can be a plate-like structure, and the first part covers the open side of the second part, so that the first part and the second part jointly define a storage space; the first part and the second part can also be hollow structures with one side open, and the open side of the first part covers the open side of the second part. Of course, the box 300 formed by the first part and the second part can be a variety of shapes, such as a cylinder, a cuboid, etc. Optionally, in some embodiments, the box 300 also includes a bottom guard plate 304, which is arranged on the lower side of the bottom plate of the box to further enhance the bearing strength and impact resistance of the bottom of the box. The material of the bottom guard plate 304 can also be a variety of materials, including but not limited to: copper, iron, aluminum, stainless steel, aluminum alloy, etc.

[0106] In the battery 1000, there may be multiple battery cells 200, and the multiple battery cells 200 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 200 are both connected in series and in parallel. The multiple battery cells 200 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 200 is accommodated in the box 300; of course, the battery 1000 may also be a battery module formed by connecting multiple battery cells 200 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 300. The battery 1000 may also include other structures, for example, the battery 1000 may also include a converging component for realizing electrical connection between the multiple battery cells 200.

[0107] Each battery cell 200 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 200 may be cylindrical, flat, rectangular, or in other shapes.

[0108] In the battery 1000, the thermal management component 100 may be disposed between the plurality of battery cells 200 and the bottom wall of the box, or between the bottom wall of the box and the bottom guard plate 304, or between the plurality of battery cells 200 and the box cover plate 303, or between two adjacent battery cells 200, to provide heat exchange for the plurality of battery cells 200. In some embodiments, the thermal management component 100 may include a thermal management component 20 and a current collecting pipe component 10, the thermal management component 20 is connected to the current collecting pipe component 10, and the thermal management component 20 and the current collecting pipe component 10 may be rectangular tubes or other shapes of tubes, for example, circular tubes.

[0109] Reference Figure 5 As shown, Figure 5 A schematic diagram of a thermal management assembly 100 provided in some embodiments of the present invention is shown in FIG. Figure 5 As shown, the thermal management assembly 100 includes a header 10, a thermal management component 20 and a heat conducting plate.

[0110] The manifold 10 is a component used to fix the thermal management component 20 and connect the inlet and outlet pipes and the thermal management component 20. The manifold 10 is arranged at one end of the thermal management component 20 in the length direction, and both ends of the thermal management component 20 are connected to the manifold 10. Specifically, the size of the manifold 10 can be determined according to the specific size of the battery 1000. The material of the manifold 10 can be various, including but not limited to: copper, iron, aluminum, stainless steel, aluminum alloy, etc. Optionally, the manifold 10 also includes a water inlet and a water outlet, which are connected to the thermal management component 20 for the inlet and outlet of the heat exchange medium.

[0111] The thermal management component 20 is a component used to exchange heat with the battery cell 200 so that the battery cell 200 can achieve a uniform temperature effect. Among them, the thermal management component 20 is arranged on one side of the current collecting pipe 10 in the width direction, and the inlet and outlet of the thermal management component 20 are connected to the current collecting pipe 10 to form a cooling circuit to exchange heat for the battery 1000. Specifically, the shape of the thermal management component 20 is various, for example, a "U"-shaped tube, a "return"-shaped tube, etc. In addition, the thermal management component 20 can be an integral part or a plurality of pipelines spliced ​​together, which can be selected according to the cooling requirements of the battery 1000. The thermal management component 20 can include multiple ones, which can be connected in series or in parallel through the internal channel of the current collecting pipe 10, so that the diversity of the heat exchange flow channel arrangement can be increased, and the adaptability of the thermal management component 100 can be improved. The material of the thermal management component 20 can be various, including but not limited to: copper, iron, aluminum, stainless steel, aluminum alloy, etc.

[0112] The heat conducting plate is a component used to connect the battery cell 200 and the thermal management component 100 to transfer heat. Without limitation, the shape of the heat conducting plate can be adapted to the shape of the battery 1000. Optionally, the heat conducting plate can be made of a material with a certain hardness and strength (such as aluminum alloy). In this way, the heat conducting plate can ensure the structural strength of the thermal management component 100, can carry multiple battery cells 200, and effectively prevent the gravity of multiple battery cells 200 from causing damage to the thermal management component 20. At the same time, the heat conducting plate is not easy to deform when the battery 1000 is squeezed and collided, so that the battery cell 200 can have a higher structural strength and the safety performance can also be improved. The material of the heat conducting plate can also be various, including but not limited to copper, iron, aluminum, stainless steel, aluminum alloy, etc.

[0113] Reference below Figure 6-Figure 19 A header member 10 according to an embodiment of a first aspect of the present invention will be described. Figure 6 is an exploded view of a current collecting pipe member 10 according to some embodiments of the present invention, Figure 7 yes Figure 6 A schematic diagram of the first joint 15 shown in FIG. Figure 8 yes Figure 6 A schematic diagram of the second partition plate 142 described in Fig. 9 is a partial cross-sectional view of a thermal management assembly 100 according to some embodiments of the present invention, Fig.10 is a schematic diagram of a current collecting pipe member 10 according to some other embodiments of the present invention, Fig.11 yes Fig.10 A schematic diagram of the first partition plate 141 shown in FIG. Fig.12 is a schematic diagram of a current collecting pipe member 10 according to some further embodiments of the present invention, Fig.13 yes Figure 6 A schematic diagram of the first partition plate 141 shown in FIG. Fig.14 is a schematic diagram of the current collecting pipe 10 according to some embodiments of the present invention from another angle, Fig.15 yes Fig.14 The schematic diagram of the end cap 17 shown in FIG. Fig.16 yes Fig.14 A schematic diagram of the tube body 11 is shown in FIG. Fig.17 is a partial cross-sectional view of the thermal management assembly 100 according to some embodiments of the present invention from another angle. Fig.18 is a partial cross-sectional view of the thermal management assembly 100 according to some embodiments of the present invention at another angle. Fig.19 is a schematic diagram of the thermal management assembly 100 according to some embodiments of the present invention from another angle.

[0114] The embodiment of the present invention provides a current collecting pipe 10, such as Figure 6As shown, the collecting pipe 10 includes: a pipe body 11, a first flow channel interface 12, a second flow channel interface 13 and a partition structure 14, there are multiple second flow channel interfaces 13, and, along the extension direction of the pipe body 11, at least two second flow channel interfaces 13 are respectively located on both sides of the first flow channel interface 12; the partition structure 14 is arranged inside the pipe body 11, the partition structure 14 separates the first flow channel interface 12 and the second flow channel interface 13 inside the pipe body 11, and the multiple second flow channel interfaces 13 are connected inside the pipe body 11.

[0115] Specifically, the pipe body 11 is used for collecting and diverting the heat exchange medium; the first flow channel interface 12 and the second flow channel interface 13 are arranged on the pipe body 11, and the first flow channel interface 12 and the second flow channel interface 13 are respectively connected to the two ends of the heat exchange flow channel (for example, the two ends of the thermal management component 20 described below), and are used to input and output the heat exchange medium into and out of the manifold 10. The separation structure 14 is arranged in the pipe body 11, and separates the first flow channel interface 12 and the second flow channel interface 13 inside the pipe body 11, that is, the first flow channel interface 12 and the second flow channel interface 13 are not connected in the pipe body 11, so that the first flow channel interface 12 and the second flow channel interface 13 can be the input end and the output end of the heat exchange flow channel respectively, so that the pipe body 11 and the heat exchange flow channel can form a complete channel, so that the liquid can enter the heat exchange flow channel from the pipe body 11 for heat exchange, and then be discharged from the pipe body 11 to complete the heat exchange work. Therefore, one tube body 11 can be used to complete the work of liquid intake and liquid discharge, thereby reducing the number of manifolds 10 used, thereby reducing the production cost and occupied space of the heat exchange management component 100.

[0116] In addition, there are multiple second flow channel interfaces 13, for example, the number of second flow channel interfaces 13 can be two, three or more, and the multiple second flow channel interfaces 13 are connected inside the tube body 11, and along the extension direction of the tube body 11, at least two second flow channel interfaces 13 are respectively located on both sides of the first flow channel interface 12, that is, at least two second flow channel interfaces 13 are arranged at both ends of the tube body 11, and the first flow channel interface 12 is arranged between at least two second flow channel interfaces 13, so that the heat exchange fluid can flow out of the tube body 11 from the second flow channel interfaces 13 on both sides, and then flow back to the tube body 11 from the middle first flow channel interface 12 after heat exchange, or the heat exchange fluid can flow out of the tube body 11 from the first flow channel interface 12 in the middle area of ​​the tube body 11, and then flow back to the tube body 11 from the second flow channel interfaces 13 at both ends of the tube body 11 after heat exchange. In this way, the heat exchange fluid can flow from the surrounding areas to the middle area of ​​the battery 1000 to achieve heat exchange, or the heat exchange fluid can flow from the middle area to the surrounding areas of the battery 1000 to achieve heat exchange, thereby improving the temperature uniformity of the battery 1000, thereby reducing the assembly steps and installation space of the thermal management component 100, improving the temperature uniformity of the battery 1000, and extending the service life of the battery 1000.

[0117] Optionally, the heat exchange medium may be water, and the heat exchange medium may be used as a heating medium or a cooling medium. When the temperature of the battery 1000 is too high, the temperature of the heat exchange medium is lower than the temperature of the battery 1000, and the heat exchange medium is a cooling medium used to cool the battery 1000; when the battery 1000 is in a cold working environment, the temperature of the battery 1000 is low, and the temperature of the heat exchange medium is higher than the operating temperature of the battery 1000, and the heat exchange medium is a heating medium to heat and keep the battery 1000 warm.

[0118] According to the collecting pipe 10 of the embodiment of the present invention, by arranging the partition structure 14 in the pipe body 11 for separating the first flow channel interface 12 and the plurality of second flow channel interfaces 13, and the plurality of second flow channel interfaces 13 are connected in the pipe body 11, the first flow channel interface 12 and the second flow channel interface 13 can be respectively formed as the input end and the output end of the heat exchange flow channel, so that the work of liquid inlet and liquid discharge can be completed by using one pipe body 11, thereby reducing the number of collecting pipes 10 used, and at the same time, the use of external connecting pipes can also be reduced, thereby reducing the production cost and occupied space of the heat exchange management component 100, and reducing the assembly steps and installation space of the thermal management component 100; in addition, the second flow channel interface 13 includes a plurality of, and at least two second flow channel interfaces 13 are located on both sides of the first flow channel interface 12, so that the heat exchange fluid can flow from the surrounding area of ​​the battery 1000 to the middle area to realize heat exchange, and the heat exchange fluid can also flow from the middle area of ​​the battery 1000 to the surrounding area to realize heat exchange, thereby improving the temperature uniformity of the battery 1000 and extending the service life of the battery 1000.

[0119] According to some embodiments of the present invention, Figure 6 As shown, the manifold 10 further includes a first joint 15 and a second joint 16 . The first joint 15 is connected to the first flow channel interface 12 through the space in the pipe body 11 , and the second joint 16 is connected to the second flow channel interface 13 through the space in the pipe body 11 .

[0120] Among them, one end of the first joint 15 and one end of the second joint 16 are both connected to the pipe body 11, and the other end of the first joint 15 and the other end of the second joint 16 are both connected to the external pipeline. The first joint 15 and the second joint 16 are used to provide liquid to the pipe body 11 or discharge the liquid after heat exchange. The first joint 15 is connected to the first flow channel interface 12 through the space in the pipe body 11, and the second joint 16 is connected to the second flow channel interface 13 through the space in the pipe body 11, and the first flow channel interface 12 and the second flow channel interface 13 are not connected. In this way, the first joint 15 and the second joint 16 do not interfere with each other, and the first flow channel interface 12 and the second flow channel interface 13 do not interfere with each other, so that cyclic heat exchange can be achieved, and then the heat exchange effect of the battery 1000 can be improved.

[0121] This embodiment provides the first joint 15 and the second joint 16 to provide the tube body 11 with the liquid required for heat exchange and discharge the liquid after heat exchange, thereby achieving heat exchange for the battery 1000 and improving the reliability of the battery 1000.

[0122] According to some embodiments of the present invention, one of the first connector 15 and the second connector 16 is an input connector, and the other is an output connector.

[0123] That is, one of the first joint 15 and the second joint 16 is used to provide heat exchange fluid to the pipe body 11, and the other is used to discharge the fluid after heat exchange. If the first joint 15 is an input joint, the second joint 16 is an output joint; if the first joint 15 is an output joint, the second joint 16 is an input joint. Specifically, the input joint is used to connect an external input pipe to input the required liquid into the pipe body 11, and the output joint is used to connect an external output pipe to discharge the solution collected in the pipe body 11.

[0124] Specifically, the first joint 15 is connected to the first flow channel interface 12 through the space inside the tube body 11, and the second joint 16 is connected to the second flow channel interface 13 through the space inside the tube body 11. Furthermore, when the first joint 15 is an input joint and the second joint 16 is an output joint, the first flow channel interface 12 is the input end of the heat exchange flow channel, and the second flow channel interface 13 is the output end of the heat exchange flow channel; when the first joint 15 is an output joint and the second joint 16 is an output joint, the first flow channel interface 12 is the output end of the heat exchange flow channel, and the second flow channel interface 13 is the input end of the heat exchange flow channel.

[0125] Optionally, the pipe body 11 is further formed with a first pipe interface and a second pipe interface, wherein the first joint 15 is connected to the first pipe interface, and the second joint 16 is connected to the second pipe interface. Figure 6-Figure 7 As shown, the first joint 15 is a circular tube extending along a circular arc, and the second structure is a circular tube extending along a circular arc. The first joint 15 and the second joint 16 are both connected to the pipe body 11 at one end to form a limiting boss, and the limiting boss protrudes radially outward from the outer surface of the first joint 15 and the second joint 16. The outer diameter of the limiting boss is larger than the inner diameter of the first pipe interface and the second pipe interface. When installing the first joint 15 and the second joint 16, the limiting boss can play a positioning role. At the same time, the limiting boss can also increase the area of ​​the connection between the first joint 15 and the second joint 16 and the pipe body 11, thereby increasing the connection stability and sealing of the first joint 15 and the second joint 16.

[0126] In this embodiment, by setting one of the first connector 15 and the second connector 16 as an input connector and the other as an output connector, liquid can be introduced and discharged, thereby realizing a heat exchange cycle for the battery 1000 and improving the reliability of the battery 1000.

[0127] According to some embodiments of the present invention, Figure 6 As shown, the tube body 11 is divided into a first space 111 and a second space 112 which are independent of each other by a partition structure 14. The first space 111 is connected to the first flow channel interface 12, and the second space 112 is connected to the second flow channel interface 13. Along the extension direction of the tube body 11, the second space 112 includes a first section, a second section and a third section which are connected in sequence. The first section and the third section are respectively located on both sides of the first space 111, and the second section is side by side with the first space 111.

[0128] The first space 111 and the second space 112 are independent of each other and are not connected to each other, forming two independent flow channels. The second space 112 includes a first section, a second section and a third section that are connected in sequence. The first section and the third section are both provided with a second flow channel interface 13. The second space 112 can connect multiple second flow channel interfaces 13. The first space 111 and the second section are arranged side by side, and the first space 111 is connected to the first flow channel interface 12, and the first flow channel interface 12 is arranged in the middle of the multiple second flow channel interfaces 13.

[0129] Optionally, the first flow channel interface 12 includes a plurality of, for example Figure 6 As shown, the first flow channel interface 12 and the second flow channel interface 13 each include two, and the two second flow channel interfaces 13 are arranged on both sides of the two first flow channel interfaces 12. In the length direction of the tube body 11, the second space 112 is "C"-shaped, and the first space 111 is arranged parallel to the second section and is arranged between the first section and the third section.

[0130] In this embodiment, by setting the first space 111 and the second space 112 to be independent of each other and not connected to each other, two independent flow channels can be formed inside the tube body 11, so that the inflow and outflow of the heat exchange fluid do not interfere with each other. At the same time, the first space 111 and the second space 112 are arranged side by side, thereby reducing the size of the tube body 11 and thus reducing the space occupied by the collecting pipe 10.

[0131] According to some embodiments of the present invention, Figure 6 As shown, the partition structure 14 includes a first partition plate 141 and a second partition plate 142. The first partition plate 141 is used to separate the second section and the first space 111. The second partition plate 142 includes at least two and is respectively located at both ends of the first partition plate 141 along the extension direction of the tube body 11. The second partition plate 142 is used to separate the first section and the first space 111, as well as the third section and the first space 111.

[0132] Specifically, the first partition plate 141 can be formed as a plate body of a certain size. The size of the first partition plate 141 can be set according to the position size of the pipe body 11 and the first flow channel interface 12. The first partition plate 141 is arranged along the length direction of the pipe body 11 (for example, Figure 6 The first partition plate 141 extends in the Y direction, and both ends of the first partition plate 141 in the width direction are sealed and connected to the inner wall surface of the pipe body 11. Figure 6 In the X direction shown in FIG, the second section and the first space 111 are separated so that the second section and the first space 111 are arranged side by side in the width direction of the tube body 11.

[0133] The second partition plates 142 include at least two, that is, the second partition plates 142 may include two, three or more. When the second partition plates 142 include only two, the second partition plates 142 are respectively located at both ends of the first partition plate 141 in the length direction, and are sealed and connected to the first partition plate 141 and the inner wall surface of the tube body 11, so that the first space 111 and the second space 112 can be completely independent and not connected to each other.

[0134] In this embodiment, by providing the first partition plate 141 and the second partition plate 142 , two independent spaces can be formed inside the tube body 11 , so that the inflow and outflow of liquids do not interfere with each other, thereby improving the heat exchange effect of the battery 1000 .

[0135] According to some embodiments of the present invention, a length dimension of the first partition plate 141 along the extension direction of the tube body 11 is greater than or equal to a length dimension of the second segment.

[0136] Among them, the first partition plate 141 is mainly used to separate the second section and the first space 111, and the second partition plate 142 is arranged at both ends of the first partition plate 141 in the length direction, and is used to separate the first section and the first space 111 and the third section and the first space 111. Furthermore, the length dimension of the first partition plate 141 along the extension direction of the tube body 11 is set to be greater than or equal to the length dimension of the second section, which can effectively prevent the first space 111 and the second section from being connected to each other, thereby improving the sealing of the first space 111 and the second space 112.

[0137] In this embodiment, by setting the length dimension of the first partition plate 141 along the extension direction of the tube body 11 to be greater than or equal to the length dimension of the second section, the first space 111 and the second section can be effectively prevented from being connected to each other, thereby improving the sealing performance of the first space 111 and the second space 112.

[0138] According to some embodiments of the present invention, Figure 10-11As shown, along the extension direction of the tube body 11, the first partition plate 141 extends from the second section to at least one end of the tube body 11, and the first partition plate 141 is also provided with at least one water hole 1411, and the water hole 1411 passes through along the thickness direction of the first partition plate 141, and the water hole 1411 is located at the position of the first partition plate 141 corresponding to the first section, and / or, the water hole 1411 is located at the position of the first partition plate 141 corresponding to the third section.

[0139] Specifically, the first partition plate 141 may extend to one end of the pipe body 11, or may extend to both ends of the pipe body 11. The end surface of the first partition plate 141 extending to one end of the pipe body 11 may be flush with the end surface of the pipe body 11, so that the first partition plate 141 may be easily positioned inside the pipe body 11, thereby improving the convenience and accuracy of installing the first partition plate 141 and the pipe body 11.

[0140] The water hole 1411 is arranged on the area where the first partition plate 141 extends from the second section to one end of the tube body 11. The water hole 1411 passes through the first partition plate 141 along the thickness direction, that is, the water hole 1411 can connect the spaces on both sides of the first partition plate 141 in the thickness direction, so that liquid can flow from one side of the first partition plate 141 in the thickness direction to the other side through the water hole 1411.

[0141] At least one water hole 1411 is provided on the first partition plate 141, that is, the number of the water holes 1411 can be one, two, three or more. The water hole 1411 can be provided only at the position of the first partition plate 141 corresponding to the first section of the second space 112, or only at the position of the first partition plate 141 corresponding to the third section of the second space 112, or at both positions.

[0142] Specifically, when the first partition plate 141 extends from the second section to one end of the pipe body 11, the portion extending from the second section passes through the first section or the third section of the second space 112, and in the width direction of the pipe body 11, the first section or the third section of the second space 112 can be divided into two side-by-side parts. At this time, the water hole 1411 is only provided at the position of the first partition plate 141 corresponding to the first section or the third section. When the first partition plate 141 extends from the second section to both ends of the pipe body 11, the portion extending from the second section passes through the first section and the third section of the second space 112. At this time, the water hole 1411 needs to be provided at the position of the first partition plate 141 corresponding to the first section and the third section; at the same time, the water hole 1411 passes through along the thickness direction of the first partition plate 141, and then, the water hole 1411 can keep the second space 112 and the second flow channel interface 13 in a connected state.

[0143] In this embodiment, by setting the first partition plate 141 to extend to at least one end of the tube body 11, it is easy to position the first partition plate 141 inside the tube body 11, thereby improving the convenience and accuracy of installing the first partition plate 141 and the tube body 11. At the same time, a water hole 1411 is formed on the extension section beyond the second section, so that the second space 112 and the second flow channel interface 13 can be kept in a connected state, thereby realizing the liquid inlet and liquid outlet of the heat exchange pipeline, and completing the heat exchange of the battery 1000.

[0144] According to some embodiments of the present invention, Fig.12 As shown, a convex rib 114 is provided on the inner wall surface of the tube body 11 . The convex rib 114 extends along the extension direction of the tube body 11 , and one side of the first partition plate 141 in the thickness direction abuts against the convex rib 114 .

[0145] Among them, the convex rib 114 is formed with a certain height, and the convex rib 114 extends along the length direction of the tube body 11 to form a long strip of protrusions. The convex rib 114 can increase the structural strength of the tube body 11, and thus improve the bending resistance of the tube body 11; one side of the first partition plate 141 in the thickness direction is abutted against the convex rib 114, and the convex rib 114 can be used for positioning the first partition plate 141 in the tube body 11, thereby improving the installation convenience and accuracy of the first partition plate 141 and the tube body 11; at the same time, it can also increase the connection area between the first partition plate 141 and the tube body 11, thereby improving the connection stability and sealing between the first partition plate 141 and the tube body 11.

[0146] By providing the convex rib 114, this embodiment can facilitate the positioning of the first partition plate 141 in the tube body 11, thereby improving the convenience and accuracy of installing the first partition plate 141 and the tube body 11; at the same time, it can also increase the connection area between the first partition plate 141 and the tube body 11, thereby improving the connection stability and sealing between the first partition plate 141 and the tube body 11.

[0147] According to some embodiments of the present invention, Fig.12 As shown, there are multiple convex ribs 114 , which are arranged at intervals along the circumference of the tube body 11 , and two sides of the first partition plate 141 in the thickness direction are respectively in contact with different convex ribs 114 .

[0148] For example, the number of convex ribs 114 may be two, three or more. The circumferential direction of the tube body 11 refers to the direction surrounding the axial direction of the tube body 11. The two sides of the first partition plate 141 in the thickness direction are respectively abutted against different convex ribs 114, that is, the first partition plate 141 can be directly inserted between two adjacent convex ribs 114 for positioning, thereby improving the installation convenience and accuracy of the first partition plate 141 and the tube body 11; at the same time, the connection area between the first partition plate 141 and the tube body 11 can be increased, thereby improving the connection stability and sealing between the first partition plate 141 and the tube body 11.

[0149] In this embodiment, by providing a plurality of convex ribs 114, and the two sides of the first partition plate 141 in the thickness direction are respectively abutted against different convex ribs 114, the first partition plate 141 can be directly inserted between two adjacent convex ribs 114 for positioning, thereby improving the installation convenience and accuracy of the first partition plate 141 and the tube body 11; at the same time, the connection area between the first partition plate 141 and the tube body 11 can be increased, thereby improving the connection stability and sealing of the first partition plate 141 and the tube body 11.

[0150] According to some embodiments of the present invention, the first partition plate 141 and the second partition plate 142 are connected by brazing.

[0151] Specifically, brazing refers to a welding method in which the solder with a lower melting point than the welding part and the welding part are heated to the melting temperature of the solder at the same time, and the gap of the solid workpiece is filled with liquid solder to connect the metals. Among them, the heating temperature of brazing is low, the joint is smooth and flat, the airtightness is good, the change of organization and mechanical properties is small, the deformation is small, the workpiece size is accurate, the same metal can be welded, and the different materials can be welded, and there is no strict limit on the thickness difference of the workpiece. At the same time, brazing can also be used to heat the workpiece as a whole, and many welds can be welded at one time, which improves productivity. Furthermore, the first partition plate 141 and the second partition plate 142 are connected by brazing, which can meet the connection sealing of the first partition plate 141 and the second partition plate 142, and can also improve the appearance and production efficiency of the collecting pipe 10.

[0152] In this embodiment, the first partition plate 141 and the second partition plate 142 are connected by brazing, so that the connection sealing of the first partition plate 141 and the second partition plate 142 can be met, and the appearance and production efficiency of the collecting pipe member 10 can be improved.

[0153] According to some embodiments of the present invention, the first partition plate 141 and the second partition plate 142 are both sealed and connected to the inner wall surface of the tube body 11 .

[0154] The first partition plate 141 and the second partition plate 142 are both sealedly connected to the inner wall surface of the pipe body 11, so that a sealed first space 111 and a sealed second space 112 are formed in the pipe body 11, and the first space 111 and the second space 112 are not connected. Further, the sealing connection method may include multiple methods, such as welding.

[0155] In this embodiment, the first partition plate 141 and the second partition plate 142 are both sealed and connected to the inner wall surface of the tube body 11 , so that a first space 111 and a second space 112 that are not connected are formed in the tube body 11 .

[0156] According to some embodiments of the present invention, the first partition plate 141 and the tube body 11 are integrally formed, and the second partition plate 142 is connected to the first partition plate 141 and the tube body 11 by brazing.

[0157] Specifically, the first partition plate 141 and the tube body 11 are integrally formed, and the second partition plate 142 is brazed to the first partition plate 141 and the tube body 11, which reduces the steps of welding the first partition plate 141 and the tube body 11, thereby improving the production rate of the header 10. At the same time, the second partition plate 142 is brazed to the first partition plate 141 and the tube body 11, wherein the brazed joint is smooth and flat, has a good airtight seal, has small changes in organization and mechanical properties, and has small deformation, thereby improving the aesthetics and airtightness of the weld, thereby improving the sealing of the first space 111 and the second space 112, reducing the deformation at the welding point, and improving the aesthetics of the header 10.

[0158] Optionally, the first partition plate 141 and the tube body 11 can be integrally formed by extrusion, and after integrally formed, holes can be drilled at the desired opening positions. Extrusion molding is an efficient, continuous, low-cost, and adaptable molding method. The use of extrusion integral molding can increase the production rate of the header 10 and reduce the production cost of the header 10.

[0159] In this embodiment, the first partition plate 141 and the tube body 11 are integrally formed, which can reduce the assembly steps of the first partition plate 141 and the tube body 11, thereby improving the production rate of the collecting tube 10 and reducing the production cost of the collecting tube 10.

[0160] According to some embodiments of the present invention, Fig.12 As shown, a plug hole 113 penetrating the tube body 11 is formed on the tube body 11 , at least part of the second partition plate 142 passes through the plug hole 113 and extends into the tube body 11 , and the first partition plate 141 is sealed and connected to the peripheral wall and / or peripheral edge of the plug hole 113 .

[0161] The second partition plate 142 can be partially inserted into the tube body 11 or fully inserted into the tube body 11, and the insertion hole 113 can be used to locate the position of the second partition plate 142, and the second partition plate 142 can be located on the tube body 11, thereby facilitating the assembly and welding of the second partition plate 142 and the tube body 11. The first partition plate 141 is sealedly connected to the peripheral wall and / or peripheral edge of the insertion hole 113, which can prevent the heat exchange fluid from flowing out of the insertion hole 113, thereby improving the sealing of the tube body 11, thereby effectively reducing the safety problems of the battery 1000 caused by the leakage of the heat exchange fluid.

[0162] In this embodiment, by providing the insertion hole 113 on the tube body 11 , the connection convenience between the second partition plate 142 and the tube body 11 can be improved, thereby improving the assembly convenience of the collecting pipe member 10 and improving the assembly efficiency.

[0163] According to some embodiments of the present invention, Figure 12-13 As shown, a slot 1412 is formed on the first partition plate 141. In a projection plane perpendicular to the insertion direction of the second partition plate 142, the projection of the slot 1412 at least partially overlaps with the projection of the insertion hole 113. One end of the second partition plate 142 extending into the tube body 11 fits into the slot 1412 and is connected to the first partition plate 141.

[0164] Among them, in the projection plane perpendicular to the insertion direction of the second partition plate 142, the projection of the slot 1412 and the projection of the socket 113 at least partially overlap, that is, in the projection plane perpendicular to the insertion direction of the second partition plate 142, the projection of the slot 1412 and the projection of the socket 113 partially overlap, or may completely overlap, that is, the slot 1412 and the socket 113 are at least partially aligned in the insertion direction of the second partition plate 142. In this way, the installation accuracy of the second partition plate 142 and the first partition plate 141 can be improved, and then the connection sealing between the first partition plate 141 and the second partition plate 142 can be improved.

[0165] In this embodiment, the second partition plate 142 can be positioned on the first partition plate 141 by setting a slot 1412 on the first partition plate 141, so that the first partition plate 141 and the second partition plate 142 can be easily assembled and welded, and the second partition plate 142 can be prevented from shifting during welding to cause assembly difficulties, thereby improving production efficiency. At the same time, the slot 1412 has a simple structure and is convenient in design, which can reduce production difficulty and production costs.

[0166] According to some embodiments of the present invention, Fig.13As shown, at least one end of the first partition plate 141 in the width direction has a connecting plate section 1413, the connecting plate section 1413 extends along the inner wall of the tube body 11 and fits with the inner wall of the tube body 11, and the slot 1412 is formed in the connecting plate section 1413 and penetrates the connecting plate section 1413 along the thickness direction of the connecting plate section 1413.

[0167] Among them, the first partition plate 141 can have a connecting plate section 1413 at one end in the width direction, and can also have a connecting plate section 1413 at both ends in the width direction. The connecting plate section 1413 extends outward along the width direction of the first partition plate 141 and is formed with a certain width. The connecting plate section 1413 is parallel to the inner wall of the tube body 11 in the thickness direction, and is in contact with at least one side of the inner wall of the tube body 11 in the thickness direction, which can increase the connection area between the first partition plate 141 and the tube body 11, and further increase the connection stability between the first partition plate 141 and the tube body 11.

[0168] For example Fig.13 As shown, connecting plate sections 1413 are formed at both ends of the first partition plate 141 in the width direction. The connecting plate sections 1413 are parallel to the inner wall surfaces of the tube body 11 in the thickness direction and fit with the two inner wall surfaces of the tube body 11 in the thickness direction.

[0169] In this embodiment, by providing the connecting plate segment 1413, the connection area between the first partition plate 141 and the pipe body 11 can be increased, thereby increasing the connection stability between the first partition plate 141 and the pipe body 11. At the same time, the slot 1412 is formed in the connecting plate segment 1413, which can reduce the production complexity of the first partition plate 141 and reduce the production cost.

[0170] According to some embodiments of the present invention, the second partition plate 142 is disposed perpendicular to the first partition plate 141 .

[0171] In this embodiment, by setting the second partition plate 142 perpendicular to the first partition plate 141, the structure can be simplified, the production complexity of the collecting pipe assembly 10 can be reduced, and the convenience of inserting the first partition plate 141 and the second partition plate 142 can be improved, thereby improving the assembly efficiency of the collecting pipe assembly 10.

[0172] According to some embodiments of the present invention, Fig.14 As shown, the collecting pipe member 10 further includes an end cover 17 . At least one end of the pipe body 11 is open. The end cover 17 is sealed at the open portion of the pipe body 11 and is sealedly connected to the pipe body 11 .

[0173] The tube body 11 may be open at one end or at both ends, and the open end may facilitate installation of the partition assembly, thereby improving the assembly convenience of the current collecting tube 10. The end cap 17 is used to cover the open end of the tube body 11 and is sealed with the tube body 11, which can effectively prevent liquid from leaking from the open end of the tube body 11, and further effectively prevent liquid from flowing out from the open side of the tube body 11 and causing damage to the battery 1000, thereby improving the reliability of the battery 1000. Furthermore, the end cap 17 has various structural forms, such as a plug and a plate.

[0174] By providing the end cap 17, this embodiment can effectively prevent the liquid from flowing out from the open side of the tube body 11 and causing damage to the battery 1000, thereby improving the reliability of the battery 1000. In addition, by providing at least one end of the tube body 11 to be open, the assembly convenience of the current collecting tube 10 can be increased, thereby improving the production efficiency of the current collecting tube 10.

[0175] According to some embodiments of the present invention, Fig.15 As shown, the end cap 17 has a convex portion protruding toward the inside of the pipe body 11 , and the convex portion is connected to the inner pipe wall of the pipe body 11 .

[0176] Among them, the surface of the side of the end cover 17 facing away from the protrusion is flush with the end surface of the open end of the tube body 11, and the protrusion extends into the interior of the tube body 11 and abuts against the inner wall of the tube body 11, which can increase the contact area between the end cover 17 and the tube body 11, thereby increasing the sealing effect of the end cover 17. At the same time, it can also reduce the occupied area of ​​the end cover 17, thereby reducing the length direction size of the collecting pipe 10 and reducing the installation space of the collecting pipe 10.

[0177] For example Fig.15 As shown, the raised portion of the end cap 17 is formed with an oblique cut surface and a horizontal surface, wherein the oblique cut surface can reduce the resistance of the raised portion entering the tube body 11, and increase the convenience of the end cap 17 entering the tube body 11; the horizontal surface is abutted and sealed with the inner wall of the tube body 11, and the contact area between the raised portion and the inner wall of the tube body 11 is increased, thereby increasing the sealing effect of the end cap 17; the side surface of the end cap 17 away from the raised portion is flush with the end surface of the open end of the tube body 11, and is welded and connected along the circumference of the tube body 11, so that the connection sealing between the end cap 17 and the tube body 11 can be further increased, and the liquid can be effectively prevented from flowing out from the open side of the tube body 11 and causing damage to the battery 1000, thereby improving the reliability of the battery 1000.

[0178] In this embodiment, by providing the end cover 17 with a convex portion protruding toward the inside of the tube body 11, the contact area between the end cover 17 and the tube body 11 can be increased, thereby increasing the sealing effect of the end cover 17. At the same time, the occupied area of ​​the end cover 17 can be reduced, thereby reducing the length direction size of the collecting pipe 10 and reducing the installation space of the collecting pipe 10.

[0179] According to some embodiments of the present invention, Fig.16 As shown, the pipe body 11 is a rectangular pipe, the first flow channel interface 12 and the second flow channel interface 13 are formed on one side surface of the pipe body 11 , and the first joint 15 and the second joint 16 are formed on the other side surface of the pipe body 11 .

[0180] Among them, the rectangular tube, also known as a flat tube, is a hollow tube. When the bending and torsional strengths are the same, the mass is relatively light. By setting the tube body 11 to a rectangular tube, the overall weight of the collecting tube 10 can be reduced, and then the overall weight of the thermal management component 100 can be reduced, and the lightweight of the battery 1000 can be improved; at the same time, the rectangular tube has a simple structure, is easy to manufacture, and has a low cost, so the production cost of the collecting tube 10 can also be reduced; in addition, the upper and lower surfaces of the rectangular tube are both flat planes, and then the tube body 11 is a rectangular tube, which can increase the installation stability of the collecting tube 10.

[0181] The first flow channel interface 12 and the second flow channel interface 13 are formed on the same side of the pipe body 11, which can increase the convenience of connecting the pipe body 11 with the heat exchange pipe; the first joint 15 and the second joint 16 are formed on the other side surface of the pipe body 11, that is, the first joint 15 and the second joint 16 are formed on the same side of the pipe body 11, and are not on the same side as the first flow channel interface 12 and the second flow channel interface 13. In this way, it is convenient to connect the first joint 15 and the second joint 16 to the external water pipe, thereby improving the convenience of installation, disassembly and maintenance of the external water pipe. At the same time, it can also effectively avoid interference between the first joint 15 and the second joint 16 and the heat exchange pipeline, thereby increasing the heat exchange area of ​​the heat exchange pipeline and improving the heat exchange effect of the thermal management component 100.

[0182] In this embodiment, by setting the tube body 11 as a rectangular tube, the overall weight of the manifold 10 can be reduced, and the overall weight of the thermal management assembly 100 can be reduced, thereby improving the lightweight of the battery 1000; at the same time, the production cost of the manifold 10 can be reduced, and the installation stability of the manifold 10 can be increased. In addition, the first flow channel interface 12 and the second flow channel interface 13 are formed on one side of the tube body 11, and the first joint 15 and the second joint 16 are formed on the other side of the tube body 11, which can effectively avoid the first joint 15 and the second joint 16 from interfering with the heat exchange pipeline, thereby increasing the heat exchange area of ​​the heat exchange pipeline and improving the heat exchange effect of the thermal management assembly 100.

[0183] According to some embodiments of the present invention, Fig.17 As shown, the partition structure 14 includes a first partition plate 141 extending along the length direction of the tube body 11, the first partition plate 141 is inclined relative to the width direction and thickness direction of the tube body 11, and the first flow channel interface 12, the second flow channel interface 13, the first joint 15 and the second joint 16 are all located on the same side of the first partition plate 141 in the thickness direction.

[0184] Among them, the first flow channel interface 12 and the second flow channel interface 13 are arranged on the same side of the pipe body 11, and the first joint 15 and the second joint 16 are arranged on the adjacent side of the pipe body 11, and the first partition plate 141 is inclined relative to the width direction and thickness direction of the pipe body 11, which can effectively prevent the first partition plate 141 from interfering with the interface between the first flow channel interface 12 and the second flow channel interface 13 and the first joint 15 and the second interface, and thus the first flow channel interface 12, the second flow channel interface 13, the first joint 15 and the second joint 16 are all located on the same side of the first partition plate 141 in the thickness direction, so that the first joint 15 can be connected to the first flow channel interface 12 through the first space 111, and the second joint 16 can be connected to the second flow channel interface 13 through the second space 112.

[0185] This embodiment arranges the first partition plate 141 to be inclined relative to the width direction and the thickness direction of the tube body 11, which can effectively prevent the first partition plate 141 from interfering with the connection between the first flow channel interface 12 and the first joint 15 and the connection between the second flow channel interface 13 and the second joint 16, thereby realizing the circulation heat exchange of the battery 1000, with a simple structure and easy assembly.

[0186] According to some embodiments of the present invention, Fig.18 As shown, a first connecting flange 121 is provided at the periphery of the first flow channel interface 12 , and a second connecting flange 131 is provided at the periphery of the second flow channel interface 13 .

[0187] Among them, the first flow channel interface 12 and the second flow channel interface 13 are respectively connected to the two ends of the heat exchange pipe, and the formation of the first connection flange 121 and the second connection flange 131 increases the contact area between the first flow channel interface 12 and the second flow channel interface 13 and the heat exchange pipe, thereby increasing the connection stability between the heat exchange pipe and the first flow channel interface 12 and the second flow channel interface 13. Optionally, the first connection flange 121 and the second connection flange 131 can be formed by folding inwardly of the pipe body 11, so that the occupied space of the pipe body 11 can be reduced. At the same time, the flange folded inwardly can also increase the strength of the pipe body 11 at the connection, increase the connection stability and connection reliability between the heat exchange pipe and the pipe body 11, and thereby reduce the deformation probability of the connection between the heat exchange pipe and the pipe body 11, thereby reducing the probability of leakage at the connection and increasing the service life of the thermal management component 100.

[0188] In other embodiments, the depth of the first flow channel interface 12 and the depth of the second flow channel interface 13 are not less than the preset depth. Specifically, the preset depth is the wall thickness of the first flow channel interface 12 and the second flow channel interface 13, and is also the length of the welding overlap between the first flow channel interface 12 and the second flow channel interface 13 and the heat exchange pipe, that is, the length of the welding part between the first flow channel interface 12 and the second flow channel interface 13 and the heat exchange pipe. The size of the welding overlap length can affect the quality of welding and the bearing capacity of the welded part. Among them, the overlap length is not less than 3mm, that is, the preset depth is not less than 3mm. For example, the preset depth can be 3mm, 4mm and above. By setting the overlap length to be not less than 3mm, the welding quality of the heat exchange pipe and the pipe body 11 can be improved, and the risk of leakage of the heat exchange fluid from the weld can be reduced.

[0189] This embodiment can increase the contact area between the first flow channel interface 12 and the second flow channel interface 13 and the heat exchange pipe by providing the first connection flange 121 and the second connection flange 131, thereby increasing the connection stability between the heat exchange pipe and the first flow channel interface 12 and the second flow channel interface 13.

[0190] According to the thermal management component 100 of the second aspect of the present invention, Figure 18-Figure 19 As shown, it includes a heat management component 20 and a collecting pipe component 10 according to the first embodiment of the present invention. The heat management component 20 is provided with a first opening and a second opening connected to the internal flow channel. The first opening is connected to the first flow channel interface 12, and the second opening is connected to the second flow channel interface 13.

[0191] Specifically, the heat management component 20 is a component used to exchange heat with the battery cell 200 to achieve a uniform temperature of the battery 1000. The internal flow channel provided in the heat management component 20 is used for the circulation of the heat exchange fluid. The heat management component 20 is connected to the manifold 10 through the first opening and the second opening. The manifold 10 is used to provide the heat exchange fluid to the heat management component 20, and collect the heat exchange fluid after the heat exchange through the heat management component 20 and discharge it.

[0192] Optionally, the heat management member 20 may have various shapes, for example, a “U”-shaped tube, a “Y”-shaped tube, etc.

[0193] Optionally, the heat management component 20 is a tube with a rectangular cross section.

[0194] According to the thermal management component 100 of the embodiment of the present invention, the overall performance of the thermal management component 100 is improved by disposing the header member 10 of the embodiment of the first aspect.

[0195] According to some embodiments of the present invention, a heat exchange channel is disposed inside the heat management component 20 , and the first opening and the second opening are respectively an input port and an output port of the heat exchange channel.

[0196] Specifically, the heat exchange channel is used for the circulation of heat exchange fluid, and the first opening and the second opening are used to input heat exchange fluid into the heat exchange channel or output heat exchange fluid after heat exchange in the heat exchange channel. If the first opening is the input port of the heat exchange channel, the second opening is the output port of the heat exchange channel; if the first opening is the output port of the heat exchange channel, the second opening is the input port of the heat exchange channel.

[0197] In this embodiment, by providing a heat exchange flow channel, the circulation of the heat exchange fluid can be facilitated, and the heat exchange between the thermal management component 100 and the battery 1000 can be realized, thereby improving the reliability of the battery 1000.

[0198] According to some embodiments of the present invention, when the thermal management component 100 is used to heat the battery cell 200, the second flow channel interface 13 is connected to the input port of the heat exchange channel, and the first flow channel interface 12 is connected to the output port of the heat exchange channel; when the thermal management component 100 is used to cool the battery cell 200, the first flow channel interface 12 is connected to the input port of the heat exchange channel, and the second flow channel interface 13 is connected to the output port of the heat exchange channel.

[0199] Specifically, when the battery 1000 is working in a low temperature environment, due to the low external temperature, the battery 1000 needs to be kept warm, that is, multiple battery cells 20 need to be heated. At this time, the temperature of the heat exchange fluid flowing in the heat exchange channel of the thermal management component 20 is higher than the temperature of the battery cells 20. When the battery 1000 is in use, the peripheral temperature dissipates heat quickly, which will cause the phenomenon of high middle temperature and low peripheral temperature. Therefore, when the battery 1000 is heated, the heat exchange fluid can enter from the periphery of the battery 1000 and then flow into the interior of the battery 1000, wherein the second flow channel interface 13 is arranged on both sides of the first flow channel interface 12. Furthermore, when the thermal management component 100 is used to heat the battery cell 20, the heat exchange fluid can flow from the second flow channel interface 13 into the heat exchange flow channel and then be discharged from the first flow channel interface 12. In this way, the peripheral temperature of the thermal management component 100 is high and the central temperature is low, and the peripheral temperature of the battery 1000 is low and the central temperature is high. The heat is neutralized on both sides, thereby reducing the temperature difference of the entire battery 1000 and achieving a better temperature uniformity effect.

[0200] When the battery 1000 is operating at a high temperature, the battery 1000 generates heat due to the high current and the high external temperature, so the battery 1000 needs to be cooled. At this time, the temperature of the heat exchange fluid flowing in the heat exchange channel of the thermal management component 20 is lower than the temperature of the battery cell 200. Since the heat dissipation effect at the center of the battery 1000 is poor, the temperature in the middle of the battery 1000 is high and the temperature at the periphery is low. Furthermore, when the battery 1000 is cooled, the heat exchange fluid can enter from the middle and then flow to the periphery, while exchanging heat with multiple battery cells 200. The second flow channel interface 13 is provided on both sides of the first flow channel interface 12. Furthermore, when the thermal management component 100 cools the battery cell 200, the heat exchange fluid can flow from the first flow channel interface 12 into the heat exchange flow channel, and be discharged from the second flow channel interface 13 after the heat exchange is completed. In this way, when the heat exchange fluid flows from the center of the battery 1000 to the periphery, the temperature of the heat exchange fluid gradually increases and the cooling effect decreases relatively. Therefore, the temperature difference of the entire battery 1000 can be reduced and the temperature uniformity of the battery 1000 can be improved.

[0201] In this embodiment, when the thermal management component 100 is used to heat the battery cell 200, the second flow channel interface 13 is connected to the input port of the heat exchange flow channel, and the first flow channel interface 12 is connected to the output port of the heat exchange flow channel; when the thermal management component 100 is used to cool the battery cell 200, the first flow channel interface 12 is connected to the input port of the heat exchange flow channel, and the second flow channel interface 13 is connected to the output port of the heat exchange flow channel, so that the flow direction of the heat exchange fluid can be variable, and the flow direction of the heat exchange fluid can be selected according to the temperature difference between the center and the periphery of the battery 1000, thereby reducing the temperature difference of the battery 1000, improving the overall temperature uniformity of the battery 1000, and thus prolonging the service life of the battery 1000.

[0202] The following describes the assembly process of the thermal management assembly 100 of the above embodiment.

[0203] A plurality of first flow channel interfaces 12 and second flow channel interfaces 13 are formed on one side of the pipe body 11, and a first connection flange 121 and a second connection flange 131 are formed by stamping on the periphery of the first flow channel interface 12 and the second flow channel interface 13. The first flow channel interface 12 and the second flow channel interface 13 are arranged on the same side of the pipe body 11, and the second flow channel interface 13 is arranged on both sides of the first flow channel interface 12; at the same time, the first pipe interface and the second pipe interface are formed on one side adjacent to the second flow channel interface 13 of the first flow channel interface 12, and a plug hole 113 is formed between the first flow channel interface 12 and the second flow channel interface 13. The first pipe interface corresponds to the first flow channel interface 12, and the second pipe interface corresponds to the second flow channel interface 13.

[0204] The first partition plate 141 is obliquely inserted into the tube body 11 through the open end of the tube body 11, and the second partition plate 142 is inserted into the tube body 11 through the insertion hole 113. The first partition plate 141 and the inner wall of the tube body 11 are connected by brazing. The second partition plate 142 is sealedly connected to the tube body 11 and the first partition plate 141 by brazing, so that the inside of the tube body 11 is formed into two unconnected channels.

[0205] The first joint 15 and the second joint 16 are connected to the positions of the first pipe interface and the second pipe interface correspondingly.

[0206] The two ends of the heat management component 20 are respectively inserted into the adjacent first flow channel interface 12 and the second flow channel interface 13 and connected by welding.

[0207] The end cap 17 is sealed at the open end of the pipe body 11 , and the end cap 17 and the pipe body 11 are connected by welding to seal the pipe body 11 .

[0208] The battery 1000 according to the third embodiment of the present invention comprises a battery cell 200 and a thermal management component 100 according to the second embodiment of the present invention, wherein the thermal management component 100 is used for heat exchange with the battery cell 200 .

[0209] Among them, multiple battery cells 200 are core components of the battery 1000, mainly used for storing and releasing energy; the thermal management component 100 is used for heat exchange with the multiple battery cells 200 to ensure the safety of the battery 1000.

[0210] Optionally, the battery 1000 further includes a box body 300 , the box body 300 has a receiving cavity 301 , and the plurality of battery cells 200 and the thermal management component 100 are both disposed in the receiving cavity 301 .

[0211] Optionally, the plurality of battery cells 200 may be arranged along a thickness direction of the battery cells 200 (eg Figure 3 The left-right direction shown in FIG. 3 is stacked and arranged in the accommodating chamber 301.

[0212] Optionally, the box body 300 includes a main box 302 and a cover plate 303. The main box 302 is formed in a rectangular box shape, the inner side of the main box 302 defines a receiving cavity 301, the top of the receiving cavity 301 is open, the main box 302 is provided with a plurality of first fixing holes, the cover plate 303 is formed in a horizontally arranged flat plate shape, the cover plate 303 is provided with a plurality of second fixing holes that penetrate the cover plate 303 in the up-down direction, the plurality of first fixing holes correspond to the plurality of second fixing holes one by one and are opposite to each other up-down, and the battery 1000 further includes a plurality of fasteners, the plurality of fasteners pass through the first fixing holes and the second fixing holes to fasten the cover plate 303 to the upper side of the main box 302.

[0213] Optionally, the cover plate 303 may be a carbon steel plate, an aluminum plate or a composite material plate.

[0214] The battery 1000 according to the embodiment of the present invention is provided with the thermal management component 100 of the second embodiment, thereby improving the overall performance of the battery 1000.

[0215] The electrical equipment according to the fourth aspect of the present invention comprises the thermal management component 100 according to the second aspect of the present invention.

[0216] According to the electrical equipment of the embodiment of the present invention, the overall performance of the electrical equipment is improved by disposing the thermal management component 100 of the embodiment of the second aspect.

[0217] According to some embodiments of the present invention, the electrical equipment also includes a thermal management input module and a thermal management output module, an input pipe and an output pipe, the collecting pipe 10 includes a first joint 15 and a second joint 16, the first joint 15 is connected to the first flow channel interface 12 through the space inside the pipe body 11, the second joint 16 is connected to the second flow channel interface 13 through the space inside the pipe body 11, the input pipe connects the thermal management input module and the second joint 16, and the output pipe connects the thermal management output module and the first joint 15.

[0218] Specifically, the thermal management input module is used to control and determine the input temperature and input amount of the heat exchange fluid. When the temperature of the battery 1000 is higher than the set temperature, the thermal management system receives an electrical signal that the temperature of the battery 1000 is too high, and outputs a signal to the thermal management input module to pump the heat exchange fluid after heat exchange with the refrigerant, so that the thermal management input module inputs low-temperature heat exchange fluid to the thermal management component 100 through the input pipeline. When the temperature of the battery 1000 is lower than the set temperature, the thermal management input module switches the heat exchange fluid that has not been exchanged with the refrigerant to enter the thermal management component 100 for heat exchange. The thermal management output module is used to return the heat exchange fluid after heat exchange to the heat exchange fluid box, and then enter the next cycle to realize the recycling of the heat exchange fluid. The input pipe is used to input the heat exchange fluid into the pipe body 11, and the output pipe is used to discharge the heat exchange fluid collected in the pipe body 11. The first joint 15 is used to connect the output pipe and the pipe body 11, and the second joint 16 is used to connect the input pipe and the pipe body 11.

[0219] The set temperature is the temperature when the battery 1000 is working normally. One end of the input pipe is connected to the thermal management input module, and the other end is connected to the second joint 16. The second joint 16 is connected to the second flow channel interface 13. The second flow channel interface 13 is connected to the heat exchange flow channel. The second flow channel interface 13 serves as the input end of the heat exchange flow channel, and provides heat exchange fluid to the heat exchange flow channel. The heat exchange fluid circulates in the heat exchange flow channel and flows out to the first space 111 through the first flow channel interface 12, and then is discharged to the output pipeline through the first joint 15, and then flows back to the heat exchange fluid box through the thermal management output module to complete the cooling cycle.

[0220] Furthermore, the second flow channel interface 13 is provided on both sides of the first flow channel interface 12, and the flow direction of the heat exchange fluid is to flow from the periphery of the battery 1000 to the central position and be discharged. When the battery 1000 is heated at a low temperature, since the heat dissipation effect of the battery cells 200 outside the battery 1000 is better, the temperature of the battery cells 200 is generally low, so the heat exchange fluid needs to be started from the periphery of the battery 1000. When the heat exchange fluid flows to the central position, the temperature of the heat exchange fluid decreases, and then the temperature difference of the entire battery 1000 can be reduced, and the temperature uniformity effect of the battery 1000 can be improved, thereby increasing the service life of the battery 1000.

[0221] This embodiment can realize the cyclic heat exchange of the thermal management component 100 and improve the heat exchange effect of the battery 1000 by setting a thermal management input module, a thermal management output module, an input pipe and an output pipe. At the same time, the heat exchange fluid can be switched according to the operating temperature of the battery 1000, thereby improving the service life of the battery 1000.

[0222] The following will refer to Figure 2-Figure 19 Three specific embodiments of the battery 1000 of the present invention are described.

[0223] Embodiment 1, as Figure 3 As shown, the battery 1000 includes a plurality of battery cells 200, a housing 300 and a thermal management component 100, wherein a receiving cavity 301 is provided in the housing 300, the thermal management component 100 and the plurality of battery cells 200 are both arranged in the receiving cavity 301, and the thermal management component 100 is used for heat exchange with the battery cells 200.

[0224] like Figure 5 and Figure 6 As shown, the thermal management assembly 100 includes a thermal management component 20 and a header pipe 10. The thermal management component 20 has a heat exchange flow channel inside, and the thermal management component 20 includes two thermal management components 20, and both ends of the two thermal management components 20 are connected to the header pipe 10. The header pipe 10 includes a pipe body 11, a first flow channel interface 12, a second flow channel interface 13, a partition structure 14, a first joint 15, a second joint 16 and an end cover 17.

[0225] Specifically, the tube body 11 is a rectangular tube with openings at both ends. The first flow channel interface 12 and the second flow channel interface 13 are arranged on the same side of the tube body 11. The first flow channel interface 12 and the second flow channel interface 13 each include two, and the two second flow channel interfaces 13 are arranged on both sides of the first flow channel interface 12.

[0226] The partition structure 14 is disposed inside the pipe body 11, and the partition structure 14 divides the pipe body 11 into a first space 111 and a second space 112 that are independent of each other. The first space 111 is connected to the two first flow channel interfaces 12, and the second space 112 is connected to the two second flow channel interfaces 13. In the longitudinal direction of the pipe body 11, the second space 112 includes a first section, a second section, and a third section that are connected in sequence. The transverse cross section of the second space 112 is formed in a "C" shape. The first section and the third section are respectively located on both sides of the first space 111, and the second section is side by side with the first space 111.

[0227] The first joint 15 is the output joint of the heat exchange fluid, and the second joint 16 is the input joint of the heat exchange fluid. The first joint 15 and the second joint 16 are arranged on a side adjacent to the first flow channel interface 12 and the second flow channel interface 13. The first joint 15 is connected to the first flow channel interface 12 through the first space 111, and the second joint 16 is connected to the second flow channel interface 13 through the second space 112.

[0228] The end caps 17 are disposed at the openings at both ends of the pipe body 11 . The end caps 17 have convex portions protruding toward the inside of the pipe body 11 . The convex portions are sealed to the inner wall of the pipe body 11 to seal the open side of the pipe body 11 .

[0229] Furthermore, the partition structure 14 also includes a first partition plate 141 and a second partition plate 142, and the first partition plate 141 and the second partition plate 142 are connected by brazing. Specifically, the first partition plate 141 extends along the length direction of the pipe body 11, and the length of the first partition plate 141 is slightly greater than the length of the second section. The first partition plate 141 includes a main plate section and a connecting plate section 1413, and the connecting plate section 1413 is arranged at both ends of the main plate section in the width direction. One end of the connecting plate section 1413 is connected to the main plate section, and the other end extends horizontally along the width direction of the pipe body 11. The connecting plate section 1413 is parallel to the two wall surfaces in the thickness direction of the pipe body 11 and fits with the two wall surfaces in the thickness direction of the pipe body 11; slots 1412 are formed at both ends of the connecting plate section 1413 in the length direction, and the slots 1412 penetrate the connecting plate section 1413 in the thickness direction of the connecting plate section 1413; the main plate section is arranged obliquely in the pipe body 11, and the main plate section and the connecting plate section 1413 form a certain angle. The second partition plate 142 is disposed at both ends of the first partition plate 141 in the length direction. The second partition plate 142 is formed with limiting protrusions that cooperate with the slot 1412 . The limiting protrusions are inserted into the slot 1412 and are sealed and connected to the first partition plate 141 .

[0230] In addition, a socket 113 is formed on the tube body 11, and at least a portion of the second partition plate 142 passes through the socket 113 and extends into the tube body 11, and the first partition plate 141 is sealedly connected to the peripheral wall and / or peripheral edge of the socket 113, and in a projection plane perpendicular to the insertion direction of the second partition plate 142, the projection of the slot 1412 coincides with the projection of the socket 113, and one end of the second partition plate 142 extending into the tube body 11 fits into the slot 1412 and is connected to the first partition plate 141.

[0231] When the battery 1000 is subjected to heat exchange, the heat exchange fluid flows from the second joint 16 into the second space 112, then flows through the second space 112 to the two first flow channel interfaces 12, and then is diverted to two different thermal management components 20 through the two first flow channel interfaces 12. The heat exchange fluid entering the thermal management component 20 flows along the heat exchange flow channel and exchanges heat with the battery cell 200. After the heat exchange is completed, it is collected into the tube body 11 through the first flow channel interface 12, and is discharged from the thermal management component 20 through the first joint 15, completing the heat exchange.

[0232] According to the battery 1000 of the third embodiment of the present invention, by setting the thermal management component 100 of the second embodiment of the present invention, a partition structure 14 is set in the tube body 11 of the collecting tube 10, and the partition structure 14 makes the first flow channel interface 12 and the plurality of second flow channel interfaces 13 not connected, and the plurality of second flow channel interfaces 13 are connected in the tube body 11, so that the first flow channel interface 12 and the second flow channel interface 13 can be respectively formed as the input end and the output end of the heat exchange flow channel, and then the work of liquid inlet and liquid discharge can be completed by using one tube body 11, thereby reducing the number of collecting tubes 10 used. At the same time, the use of external connecting pipes can also be reduced, thereby reducing the production cost and occupied space of the heat exchange management component 100, and reducing the assembly steps and installation space of the thermal management component 100; in addition, the second flow channel interface 13 includes multiple, and at least two second flow channel interfaces 13 are located on both sides of the first flow channel interface 12, so that the heat exchange fluid can flow from the surrounding area of ​​the battery 1000 to the middle area to achieve heat exchange, and the heat exchange fluid can also flow from the middle area of ​​the battery 1000 to the surrounding area to achieve heat exchange, thereby improving the temperature uniformity of the battery 1000 and extending the service life of the battery 1000.

[0233] Embodiment 2: This embodiment has substantially the same structure as that of embodiment 1, wherein the same components are designated by the same reference numerals, and the only difference is that the length of the first partition plate 141 described in embodiment 1 is slightly larger than the size of the second section, and the first partition plate 141 is formed with a connecting plate section 1413, while the length of the first partition plate 141 described in this embodiment 2 is the same as the length of the tube body 11, and two water holes 1411 are formed at both ends of the first partition plate 141 in the length direction.

[0234] Specifically, the first partition plate 141 is a rectangular plate, and the two ends of the first partition plate 141 in the length direction are flush with the two ends of the tube body 11 in the length direction, which can reduce the difficulty of positioning the first partition plate 141 in the tube body 11, and thus improve the convenience of connecting the first partition plate 141 and the tube body 11; the water hole 1411 is arranged at the two ends of the first partition plate 141 in the length direction, and the water hole 1411 passes through the first partition plate 141 along the thickness direction of the first partition plate 141. The water hole 1411 is respectively located at the positions of the first section and the third section of the first partition plate 141, and is mainly used to connect the second space 112 and the second flow channel interface 13.

[0235] A convex rib 114 is provided on the inner wall surface of the tube body 11, and the convex rib 114 extends along the extension direction of the tube body 11. One side of the first partition plate 141 in the thickness direction abuts against the convex rib 114. There are multiple convex ribs 114, and the multiple convex ribs 114 are arranged at intervals along the circumference of the tube body 11. The two sides of the first partition plate 141 in the thickness direction abut against different convex ribs 114 respectively, which can be used for positioning the first partition plate 141.

[0236] When assembling the collecting pipe 10, the first partition plate 141 can be first inserted into the space formed by the multiple ribs 114, and then the two ends of the first partition plate 141 are flush with the two ends of the tube body 11, and then the first partition plate 141 and the tube body 11 are connected by brazing to make them sealed.

[0237] Embodiment 3: The structure of this embodiment is substantially the same as that of embodiment 1, wherein the same components are marked with the same reference numerals, and the only difference is that the first partition plate 141 and the tube body 11 described in embodiment 1 are separate bodies, while the first partition plate 141 and the tube body 11 in this embodiment are an integrated body.

[0238] Specifically, the first partition plate 141 is integrally extruded with the pipe body 11, and the second partition plate 142 is brazed and connected to the first partition plate 141 and the pipe body 11. After the first partition plate 141 is integrally extruded with the pipe body 11, a hole is opened at a required position to form a required flow channel, and then the second partition plate 142 is inserted into the pipe body 11, so that the first flow channel interface 12 and the second flow channel interface 13 are separated inside the pipe body 11, and the two second flow channel interfaces 13 are connected inside the pipe body 11.

[0239] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A current collecting pipe, characterized in that: include: A pipe body (11); A first flow channel interface (12) and a second flow channel interface (13), wherein the second flow channel interface (13) is multiple, and along the extension direction of the pipe body (11), at least two of the second flow channel interfaces (13) are respectively located on both sides of the first flow channel interface (12); A partition structure (14), wherein the partition structure (14) is arranged inside the tube body (11), and the partition structure (14) separates the first flow channel interface (12) and the second flow channel interface (13) inside the tube body (11), and the plurality of second flow channel interfaces (13) are connected inside the tube body (11).

2. The current collecting pipe member according to claim 1, characterized in that: The collecting pipe also includes a first joint (15) and a second joint (16), wherein the first joint (15) is connected to the first flow channel interface (12) through a space inside the pipe body (11), and the second joint (16) is connected to the second flow channel interface (13) through a space inside the pipe body (11).

3. The current collecting pipe member according to claim 2, characterized in that: One of the first connector (15) and the second connector (16) is an input connector, and the other is an output connector.

4. The header according to claim 1, characterized in that: The pipe body (11) is divided into a first space (111) and a second space (112) which are independent of each other by the partition structure (14); the first space (111) is connected to the first flow channel interface (12); the second space (112) is connected to the second flow channel interface (13); along the extension direction of the pipe body (11), the second space (112) comprises a first section, a second section and a third section which are connected in sequence; the first section and the third section are respectively located on two sides of the first space (111); and the second section is arranged side by side with the first space (111).

5. The current collecting pipe member according to claim 4, characterized in that: The partition structure (14) includes a first partition plate (141) and a second partition plate (142), wherein the first partition plate (141) is used to separate the second section and the first space (111), and the second partition plate (142) includes at least two and respectively located at both ends of the first partition plate (141) along the extension direction of the tube body (11), and the second partition plate (142) is used to separate the first section and the first space (111), and the third section and the first space (111).

6. The current collecting pipe member according to claim 5, characterized in that: The length dimension of the first partition plate (141) along the extension direction of the tube body (11) is greater than or equal to the length dimension of the second section.

7. The header according to claim 6, characterized in that: Along the extension direction of the tube body (11), the first partition plate (141) extends from the second section to at least one end of the tube body (11), and the first partition plate (141) is also provided with at least one water hole (1411), and the water hole (1411) passes through along the thickness direction of the first partition plate (141), and the water hole (1411) is located at a position of the first partition plate (141) corresponding to the first section, and / or the water hole (1411) is located at a position of the first partition plate (141) corresponding to the third section.

8. The current collecting pipe member according to claim 5, characterized in that: A convex rib (114) is provided on the inner wall surface of the tube body (11), and the convex rib (114) extends along the extension direction of the tube body (11), and one side of the first partition plate (141) in the thickness direction abuts against the convex rib (114).

9. The current collecting pipe member according to claim 8, characterized in that: The number of the convex ribs (114) is plural, and the convex ribs (114) are arranged at intervals along the circumference of the tube body (11), and the two sides of the first partition plate (141) in the thickness direction are respectively in contact with different convex ribs (114).

10. The header according to claim 5, characterized in that: The first partition plate (141) and the second partition plate (142) are connected by brazing.

11. The header according to claim 5, characterized in that: The first partition plate (141) and the second partition plate (142) are both sealedly connected to the inner wall surface of the tube body (11).

12. The header according to claim 5, characterized in that: The first partition plate (141) and the tube body (11) are integrally formed, and the second partition plate (142) is brazed to the first partition plate (141) and the tube body (11).

13. The header according to claim 5, characterized in that: The tube body (11) is provided with an insertion hole (113) penetrating the tube body (11); at least a portion of the second partition plate (142) passes through the insertion hole (113) and extends into the tube body (11); and the first partition plate (141) is sealedly connected to a peripheral wall and / or peripheral edge of the insertion hole (113).

14. The header according to claim 13, characterized in that: A slot (1412) is formed on the first partition plate (141), and in a projection plane perpendicular to the insertion direction of the second partition plate (142), the projection of the slot (1412) and the projection of the insertion hole (113) at least partially overlap, and one end of the second partition plate (142) extending into the tube body (11) fits into the slot (1412) and is connected to the first partition plate (141).

15. The header according to claim 14, characterized in that: The first partition plate (141) has a connecting plate section (1413) at at least one end in the width direction, and the connecting plate section (1413) extends along the inner wall of the tube body (11) and fits with the inner wall of the tube body (11), and the slot (1412) is formed in the connecting plate section (1413) and penetrates the connecting plate section (1413) along the thickness direction of the connecting plate section (1413).

16. The header according to claim 5, characterized in that: The second partition plate (142) is arranged perpendicular to the first partition plate (141).

17. The header according to any one of claims 1 to 16, characterized in that: The collecting pipe also includes an end cover (17); at least one end of the pipe body (11) is open; the end cover (17) covers the open portion of the pipe body (11) and is sealed and connected to the pipe body (11).

18. The header according to claim 17, characterized in that: The end cover (17) has a convex portion protruding toward the inside of the pipe body (11), and the convex portion is connected to the inner pipe wall of the pipe body (11).

19. The header according to claim 2, characterized in that: The pipe body (11) is a rectangular pipe, the first flow channel interface (12) and the second flow channel interface (13) are formed on one side surface of the pipe body (11), and the first joint (15) and the second joint (16) are formed on the other side surface of the pipe body (11).

20. The header member according to claim 19, characterized in that: The partition structure (14) comprises a first partition plate (141) extending along the length direction of the tube body (11), the first partition plate (141) being arranged at an inclination relative to the width direction and the thickness direction of the tube body (11), and the first flow channel interface (12), the second flow channel interface (13), the first joint (15) and the second joint (16) are all located on the same side of the first partition plate (141) in the thickness direction.

21. The header member according to claim 1, characterized in that: A first connecting flange (121) is provided on the periphery of the first flow channel interface (12), and a second connecting flange (131) is provided on the periphery of the second flow channel interface (13).

22. A thermal management component, characterized in that: The invention comprises a heat management component (20) and a collecting pipe component as claimed in any one of claims 1 to 21, wherein the heat management component (20) is provided with a first opening and a second opening connected to an internal flow channel, wherein the first opening is connected to the first flow channel interface (12), and the second opening is connected to the second flow channel interface (13).

23. The thermal management assembly of claim 22, wherein: A heat exchange channel is arranged inside the heat management component (20), and the first opening and the second opening are respectively the input port and the output port of the heat exchange channel.

24. The thermal management assembly of claim 23, wherein: When the thermal management component is used to heat a battery cell, the second flow channel interface (13) is connected to the input port of the heat exchange flow channel, and the first flow channel interface (12) is connected to the output port of the heat exchange flow channel; When the thermal management component is used to cool a battery cell, the first flow channel interface (12) is connected to the input port of the heat exchange flow channel, and the second flow channel interface (13) is connected to the output port of the heat exchange flow channel.

25. A battery, characterized in that: The thermal management component comprises a battery cell and the thermal management assembly according to any one of claims 22 to 24, wherein the thermal management component is used for heat exchange with the battery cell.

26. An electrical equipment, characterized in that: The electrical equipment comprises the thermal management assembly as claimed in claim 25 .

27. The electrical equipment according to claim 26, characterized in that: The heat management device also comprises a thermal management input module and a thermal management output module, an input pipeline and an output pipeline, wherein the manifold comprises a first joint (15) and a second joint (16), wherein the first joint (15) is connected to the first flow channel interface (12) through a space in the pipe body (11), and the second joint (16) is connected to the second flow channel interface (13) through a space in the pipe body (11), wherein the input pipeline connects the thermal management input module and the second joint (16), and wherein the output pipeline connects the thermal management output module and the first joint (15).

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