Domain controller, battery pack assembly, and vehicle

Abstract

This application provides a domain controller, a battery pack assembly, and a vehicle. The domain controller includes: a housing, one end of which is a mounting end adapted to connect to the battery pack along a second direction; the mounting end has a wiring opening; the housing has a receiving space communicating with the wiring opening; an electronic control assembly located within the receiving space and including a high-voltage power distribution unit; and a wiring harness terminal connector located within the receiving space, electrically connected to the high-voltage power distribution unit, and adapted to connect to a connector on the battery pack via a first electrical connector passing through the wiring opening. This allows for the integration of the electronic control assembly, thereby reducing the internal space occupied by the electronic control assembly in the vehicle and improving the utilization rate of vehicle space. Furthermore, it facilitates a rational layout of the wiring of the electronic control assembly, thus improving the safety and reliability of the vehicle.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a domain controller, a battery pack assembly, and a vehicle. Background Technology

[0002] With the continuous development and innovation of new energy vehicle technology, the related technologies of the electric vehicle industry are also undergoing rapid updates and iterations. Modern new energy vehicles have increasingly more electronic control systems, which requires more internal installation space and increases the number of wiring harnesses and connectors, thus raising the vehicle's failure rate. Summary of the Invention

[0003] This application provides a domain controller, a battery pack assembly, and a vehicle that improves vehicle safety and reliability.

[0004] In a first aspect, this application provides a domain controller, comprising: a housing, one end of which is a mounting end along a second direction, the mounting end being adapted to be connected to a battery pack, the mounting end having a wiring opening, the housing having a receiving space communicating with the wiring opening; an electronic control assembly located within the receiving space and including a high-voltage power distribution unit; and a wiring harness terminal connector disposed within the receiving space, the wiring harness terminal connector being electrically connected to the high-voltage power distribution unit and adapted to be connected to a connector on the battery pack via a first electrical connector passing through the wiring opening.

[0005] According to the domain controller of this application embodiment, by placing the electronic control assembly within the housing's accommodating space, the electronic control assembly can be integrated, thereby reducing the internal space occupied by the electronic control assembly and improving the utilization rate of vehicle space. Furthermore, it facilitates a rational layout of the wiring of the electronic control assembly, reducing the complexity of the wiring harness layout within the vehicle and thus improving vehicle safety and reliability. In addition, by providing a wiring harness terminal connector within the accommodating space, and adapting the wiring harness terminal connector to connect to a connector on the battery pack via a first electrical connector passing through a wire-passing opening at the housing mounting end, the portion of the first electrical connector connected to the connector within the accommodating space can be rationally arranged, facilitating wiring by personnel and thus improving the assembly efficiency of the domain controller while ensuring its safety and reliability.

[0006] In one possible implementation of the first aspect of this application, the accommodating space is provided with a partition, which divides the accommodating space into a first accommodating cavity and a second accommodating cavity distributed along a first direction. The first accommodating cavity is in communication with the wire passage opening, and the high-voltage power distribution unit is located in the second accommodating cavity. The partition is provided with a fixing hole that connects the first accommodating cavity and the second accommodating cavity, and the wire harness terminal connector is fixed at the fixing hole.

[0007] In one possible implementation of the first aspect of this application, the electronic control assembly includes a battery pack circuit breaker unit located within the first accommodating cavity. The battery pack circuit breaker unit includes a DC terminal block, which includes a positive main terminal, a negative main terminal, and a first positive shunt terminal. The positive main terminal and the negative main terminal are adapted to be electrically connected to the battery cells of the battery pack through a DC connector passing through the wire opening. The partition plate is provided with a first wire hole, and the high-voltage power distribution unit is electrically connected to the first positive shunt terminal through a second electrical connector passing through the first wire hole.

[0008] In one possible implementation of the first aspect of this application, the domain controller further includes a first access cover, wherein the end wall of the first receiving cavity away from the partition along the first direction is a first cover plate, the first cover plate has a first access opening, the first access opening is directly opposite at least a portion of the DC terminal block and the wiring harness terminal connector, and the first access cover is detachably disposed at the first access opening.

[0009] In one possible implementation of the first aspect of this application, the following are included: a fast charging terminal block located within the first receiving cavity, the fast charging terminal block being adapted to connect to a fast charging connector on the battery pack via a fast charging connector passing through the wire opening; the battery pack circuit breaker unit further includes a fast charging relay and a main negative relay; along a second direction, the fast charging relay and the main negative relay are located on the side of the fast charging terminal block and the DC terminal block away from the mounting end; the DC terminal block includes a second positive shunt terminal and a second negative shunt terminal, the second positive shunt terminal being electrically connected to the fast charging terminal block via the fast charging relay, and the second negative shunt terminal being electrically connected to the fast charging terminal block via the main negative relay.

[0010] In one possible implementation of the first aspect of this application, the electronic control assembly includes a motor controller located within the first accommodating cavity, the motor controller and the battery pack circuit breaker unit being distributed along a third direction, the motor controller including a motor control filter having a positive terminal and a negative terminal; the DC terminal block including a third positive shunt terminal, the third positive shunt terminal being electrically connected to the positive terminal via a wiring; the second negative shunt terminal being electrically connected to the negative terminal via the main negative relay.

[0011] In one possible implementation of the first aspect of this application, a first baffle is provided in the first receiving cavity, and the two sides of the first baffle along a third direction are respectively a first chamber and a second chamber. The battery pack circuit breaker unit, the wiring harness terminal connector and the fast charging connector are all located in the first chamber. The motor controller includes a drive module, which is located in the second chamber. The first baffle has a notch that penetrates the first baffle along a third direction, and the motor control filter is located in the notch.

[0012] In one possible implementation of the first aspect of this application, the first receiving cavity is provided with a first baffle and a second baffle that are spaced apart. The first baffle and the second baffle divide the first receiving cavity into a first chamber, a second chamber and a third chamber arranged sequentially along a third direction. The electronic control assembly includes a first electronic control module located in the first chamber, a second electronic control module located in the second chamber and a third electronic control module located in the third chamber.

[0013] In one possible implementation of the first aspect of this application, the first electronic control module includes a battery pack circuit breaker unit; and / or, the second electronic control module includes a motor controller; and / or, the third electronic control module includes a power management system, a vehicle controller, and a power management system.

[0014] In one possible implementation of the first aspect of this application, the third electronic control module includes a power management system, a vehicle controller, and a power management system; the housing includes a first housing portion and a second housing portion connected along the first direction, the circumferential dimension of the first housing portion being larger than the circumferential dimension of the second housing portion to define a stepped portion, a portion of the third chamber being located at the stepped portion, a communication connector mounting position being provided at the portion of the stepped portion located in the first housing portion, the communication connector mounting position having a third through hole communicating with the third chamber, and the partition being disposed within the second housing portion; the domain controller further includes a communication connector, the communication connector being mounted at the communication connector mounting position.

[0015] In one possible implementation of the first aspect of this application, a second wire passage hole is provided on the portion of the partition that faces the high-voltage power distribution unit. Along the second direction, the second wire passage hole is located on the side of the fixing hole away from the mounting end, and a portion of the wire harness of the high-voltage power distribution unit enters the first receiving cavity through the second wire passage hole.

[0016] In one possible implementation of the first aspect of this application, the electronic control assembly includes a high-voltage power distribution unit and a dual-function power module disposed at intervals along a third direction within the second accommodating cavity, the dual-function power module including a DC-DC converter and an on-board charger.

[0017] In one possible implementation of the first aspect of this application, the high-voltage power distribution unit includes a high-voltage power distribution board, the DC converter includes a DC filter board, and the on-board charger includes an on-board charging filter board. The DC filter board and the on-board charging filter board are spaced apart on the partition and located on the side of the wiring harness terminal connector closer to the mounting end. The high-voltage power distribution board is installed in the second receiving cavity and is stacked with the DC filter board and the on-board charging filter board.

[0018] In one possible implementation of the first aspect of this application, the domain controller further includes a second access cover, the high-voltage distribution board being located on the side of the DC filter board and the vehicle charging filter board away from the partition; the surface of the high-voltage distribution board facing away from the partition has a first fuse; the end wall of the second receiving cavity along the first direction away from the partition is a second cover plate; the second cover plate has a second access opening communicating with the second receiving cavity, the second access opening being directly opposite the first fuse, and the second access cover being detachably disposed at the second access opening.

[0019] In one possible implementation of the first aspect of this application, the partition is provided with a third wire passage hole. Along the second direction, the third wire passage hole is located on the side of the wire harness terminal connector near the mounting end, and part of the wire harness of the two-in-one power module enters the first receiving cavity through the third wire passage hole.

[0020] In one possible implementation of the first aspect of this application, a three-phase connector mounting position is provided on the other end of the housing along the second direction, the three-phase connector mounting position is provided with a connection through hole, the connection through hole is in communication with the receiving space; the domain controller includes a three-phase connector, the three-phase connector is mounted at the three-phase connector mounting position.

[0021] In one possible implementation of the first aspect of this application, both the housing and the partition are metal parts.

[0022] Secondly, this application provides a battery pack assembly, including: a battery pack having a plurality of connectors thereon; a domain controller, which is the aforementioned domain controller, the domain controller being fixed and electrically connected to the battery pack and located on the outside of the battery pack, and along the second direction, the connectors being located on a wall panel of the battery pack at the end away from the domain controller.

[0023] In one possible implementation of the second aspect of this application, the electronic control assembly includes a first portion of a battery pack circuit breaker unit, the first portion being adapted to be electrically connected to the battery cells of the battery pack via a DC connector passing through the wire opening; the battery pack includes a second portion of the battery pack circuit breaker unit, the second portion including at least a main positive relay and a second fuse, the main positive relay and the second fuse being electrically connected to the DC connector.

[0024] Thirdly, this application provides a battery pack assembly including the above-described battery pack.

[0025] In one possible implementation of the third aspect of this application, the second direction is the longitudinal direction of the vehicle, and the battery pack is located at the rear end of the domain controller.

[0026] The technical effects of the second and third aspects of this application can be referred to the technical effects of the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a battery pack assembly provided in some embodiments of this application.

[0028] Figure 2 Rear view of a battery pack assembly provided in some embodiments of this application.

[0029] Figure 3 Rear view of a domain controller provided for some embodiments of this application.

[0030] Figure 4 This is a schematic diagram of the first receiving cavity of a domain controller provided in some embodiments of this application.

[0031] Figure 5 A schematic diagram of the first receiving cavity of a domain controller provided in some other embodiments of this application.

[0032] Figure 6 This is a partial schematic diagram of a battery pack assembly provided in some embodiments of this application.

[0033] Figure 7 A top view of a domain controller provided for some embodiments of this application.

[0034] Figure 8A top view of a domain controller provided for other embodiments of this application.

[0035] Figure 9 This is a schematic diagram of the second receiving cavity of a domain controller provided in some embodiments of this application.

[0036] Figure 10 A bottom view of a domain controller provided for some embodiments of this application.

[0037] Figure label: 1000 Battery pack assembly; 100 Domain controller; 101 Housing; 102 Electronic control assembly; 103 Three-phase connector; 104 Communication connector; 200 Battery pack; 201 Connector; 202 DC power connector; 203 Fast charging connector; 1. Body; 11. Accommodating space; 111. First accommodating cavity; 1111. First opening; 1112. First baffle; 1113. Second baffle; 1114. First chamber; 1115. Second chamber; 1116. Third chamber; 112. Second accommodating cavity; 1121. Second opening; 12. Partition; 121. Second wire passage hole; 122. Third wire passage hole; 123. Fixing hole; 13. Mounting end; 131. Wire passage opening; 14. Three-phase connector mounting position; 15. First shell; 151. Stepped part; 152. Communication connector mounting position; 16. Second shell; 17. Waterproof and breathable valve; 2. First cover plate; 21. First inspection opening; 3. First inspection cover; 4. Second cover plate; 41. Second inspection opening; 5. Second inspection cover; 6. Electronic control module; 61. First electronic control module; 61. First part; 611. DC terminal block; 6111. Positive main terminal; 6112. Negative main terminal; 6113. Second positive shunt terminal; 6114. Second negative shunt terminal; 6115. Third positive shunt terminal; 612. Wiring harness terminal connector; 613. Fast charging terminal block; 614. Fast charging relay; 615. Main and negative relay; 62. Second electronic control module; 62. Motor controller; 621. Motor control filter; 6211. Positive terminal; 6212. Negative terminal; 63. Third electronic control module; 64. High-voltage power distribution unit; 641. High-voltage power distribution board; 642. First fuse; 642. DC power distribution board; 65. Two-in-one power module; 651. On-board charging filter board; 652. DC filter board. Detailed Implementation

[0038] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0039] In this application, the accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features.

[0040] Unless otherwise stated, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items. The singular forms "a," "the," and "the" as used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0041] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. In the description of this application, "several" means one or more, unless otherwise explicitly specified.

[0042] In the description of this application, the terms "center", "thickness", "height", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this application and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In other words, they should not be construed as limitations on this application.

[0043] In the description of this application, unless otherwise expressly defined, the terms "installation," "connection," "linking," "fixing," "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; 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 also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0044] In the description of this application, unless otherwise expressly defined, the terms "above," "over," "on top of," "below," "below," "under," or "below" for "first feature over second feature" can refer to the first and second features being in direct contact, or to the first and second features being in indirect contact through an intermediate medium. Furthermore, "above," "below," and "over" for "first feature over second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature over second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0045] With the continuous development and innovation of new energy vehicle technology, the related technologies of the electric vehicle industry are also undergoing rapid updates and iterations. Modern new energy vehicles have increasingly more electronic control systems, which requires more internal installation space and increases the number of wiring harnesses and connectors, thus raising the vehicle's failure rate.

[0046] To address the aforementioned technical problems, this application provides a domain controller, a battery pack assembly, and a vehicle.

[0047] The vehicle described in this application embodiment will now be explained.

[0048] The vehicle provided in this application includes a battery pack assembly. The battery pack assembly can serve as a power source to power the vehicle, or it can provide electrical energy to the electrical equipment on the vehicle.

[0049] For example, the vehicle can be a passenger car such as a sedan, SUV (sport utility vehicle), or MPV (multi-purpose vehicle), or a bus, truck, or semi-trailer, etc. This embodiment does not make any specific limitations.

[0050] The battery pack assembly of the present application embodiment will be described below.

[0051] Please see Figure 1 and Figure 2 The battery pack assembly 1000 provided in this application embodiment includes a battery pack 200. The battery pack 200 may include a housing and battery cells, with the battery cells installed inside the housing.

[0052] The battery pack assembly 1000 may further include a domain controller 100. The domain controller 100 is fixedly and electrically connected to the battery pack 200. For example, the domain controller 100 and the battery pack 200 may be connected by fasteners, magnets, snap-fit ​​connectors, etc. A seal may be provided at the connection point between the domain controller 100 and the battery pack 200 to prevent debris, water, etc., from entering the domain controller 100 and the battery pack 200, thereby improving the safety and reliability of the battery pack assembly 1000.

[0053] Domain controller 100 can be located outside the battery pack 200. "Outside" means that domain controller 100 is a component independent of the battery pack 200, and is housed within the battery pack 200's enclosure. Therefore, when maintenance of domain controller 100 is required, it can be performed without disassembling the battery pack 200, thus reducing maintenance difficulty and costs, and ultimately improving the user experience.

[0054] The battery pack 200 may be provided with multiple connectors 201. Among them, the multiple connectors 201 include at least a three-phase power connector, a fast charging connector, a slow charging connector, a power supply connector, an air conditioning connector, an external speaker connector, and a cell heating connector.

[0055] Along the second direction F2, connector 201 can be located on the end panel of battery pack 200 away from domain controller 100, that is, connector 201 can be located at the rear end of battery pack 200. Here, the second direction F2 is the longitudinal direction of the vehicle. Therefore, the battery pack assembly 1000 of this application can be used in rear-wheel drive vehicles.

[0056] Please continue reading. Figure 1 and Figure 2 In some embodiments, the battery pack 200 may be located at the rear end of the domain controller 100 in the longitudinal direction of the vehicle. This arrangement helps to optimize the structural layout of the vehicle.

[0057] The domain controller 100 of this application embodiment will be described below.

[0058] Please see Figures 3-5 The domain controller 100 provided in this application embodiment may include a housing 101, an electrical control assembly 102, and a wiring harness terminal connector 612.

[0059] One end of the housing 101 along the second direction F2 is a mounting end 13. The mounting end 13 is adapted to be connected to the battery pack 200. The second direction F2 can be the front-rear direction of the vehicle.

[0060] For example, the connection between mounting terminal 13 and battery pack 200 is detachable. This facilitates the replacement and maintenance of domain controller 100, thereby improving vehicle maintainability.

[0061] For example, the domain controller 100 has a plurality of first connection fixing holes on its mounting end 13, and the battery pack 200 has a plurality of second connection fixing holes corresponding one-to-one with the first connection fixing holes on its opposite end to the domain controller. The domain controller 100 and the battery pack 200 can be connected by passing fasteners through the first and second connection fixing holes. This connection method is simple, thereby reducing the assembly difficulty of the battery pack assembly 1000.

[0062] Mounting end 13 may have a wiring opening 131. The end of the battery pack 200 facing mounting end 13 may have an opening directly opposite the wiring opening 131, and the electrical connectors of the cells inside the battery pack 200 can extend into the receiving space 11 through the opening and the wiring opening 131.

[0063] The housing 101 has a receiving space 11, which communicates with the wiring opening 131. The electronic control assembly 102 is located within the receiving space 11 and includes a high-voltage power distribution unit (PDU) 64, which enables intelligent distribution and management of electrical energy. Therefore, the electronic control assembly 102 can be integrated within the receiving space 11 of the housing 101, eliminating the need for a separate housing for the high-voltage power distribution unit 64. This helps avoid the problems of scattered installation and complex wiring of the electronic control assembly 102, thereby optimizing the vehicle's structural layout and improving space utilization.

[0064] The wire harness terminal connector 612 can be disposed within the receiving space 11. The wire harness terminal connector 612 is electrically connected to the high-voltage power distribution unit 64 and is adapted to be connected to the connector 201 on the battery pack 200 via a first electrical connector passing through the wire passage opening 131. Thus, the connection position of the first electrical connector can be fixed by the wire harness terminal connector 612, thereby allowing for a better and more rational arrangement of the structural layout within the housing 101.

[0065] The first electrical connector can be a wire harness.

[0066] According to the domain controller 100 of this application embodiment, by placing the electronic control assembly 102 within the receiving space 11 of the housing 101, the electronic control assembly 102 can be integrated, thereby reducing the internal space occupied by the electronic control assembly 102 in the vehicle and improving the utilization rate of vehicle space. Furthermore, it facilitates a reasonable layout of the wiring of the electronic control assembly 102, thereby reducing the complexity of the wiring harness layout within the vehicle and improving vehicle safety and reliability. In addition, by providing a wiring harness terminal connector 612 within the receiving space 11, and adapting the wiring harness terminal connector 612 to connect to the connector 201 on the battery pack 200 through a first electrical connector passing through the wire opening 131 of the mounting end 13 of the housing 101, the portion of the first electrical connector connected to the connector 201 within the receiving space 11 can be reasonably arranged, facilitating wiring by personnel and improving the assembly efficiency of the domain controller 100 while ensuring its safety and reliability.

[0067] Please continue reading. Figures 3-5 In some embodiments, a partition 12 is provided within the accommodating space 11, dividing the accommodating space 11 into a first accommodating cavity 111 and a second accommodating cavity 112 distributed along a first direction F1. The first accommodating cavity 111 and the second accommodating cavity 112 are relatively independent chambers. The second direction F2 intersects the first direction F1. Therefore, the partition 12 can form an electromagnetic barrier between the first accommodating cavity 111 and the second accommodating cavity 112, thereby reducing mutual interference between the electronic control module 6 of the electronic control assembly 102 in the first accommodating cavity 111 and the electronic control module 6 of the electronic control assembly 102 in the second accommodating cavity 112, and thus helping to ensure the stability and reliability of the domain controller 100.

[0068] It should be noted that the first direction F1 can be the height direction of the vehicle.

[0069] The shape and size of the first receiving cavity 111 may be the same or different.

[0070] The first receiving cavity 111 is connected to the wire passage opening 131. Thus, the first electrical connector can enter the first receiving cavity 111 through the wire passage opening 131.

[0071] The high-voltage power distribution unit 64 is located within the second receiving cavity 112. Therefore, the high-voltage power distribution unit 64 can be physically isolated by the partition 12, which helps to reduce the impact of the electrical control assembly 102 within the first receiving cavity 111 on the high-voltage power distribution unit 64.

[0072] The partition 12 has a fixing hole 123 connecting the first receiving cavity 111 and the second receiving cavity 112, and the wire harness terminal connector 612 is fixed at the fixing hole 123. Therefore, by defining the position of the fixing hole 123, it is convenient to assemble the wire harness terminal connector 612. At the same time, it facilitates wiring operations from inside the first receiving cavity 111 to the wire harness terminal connector 612, and also allows for neater wiring within the second receiving cavity 112.

[0073] For example, the wire harness terminal connector 612 can be mounted at the fixing hole 123 using fasteners. This simple fixing method helps to reduce the assembly difficulty of the wire harness terminal connector 612.

[0074] Please continue reading. Figures 4-5 In some embodiments, the electronic control assembly 102 may include a first portion 61 of a battery disconnect unit (BDU) located within a first receiving cavity 111. This first portion 61 of the battery disconnect unit can distribute power to other electronic control modules 6. This arrangement helps ensure the safety of the battery pack 200 operation, while the housing 101 also protects the first portion 61 of the battery disconnect unit. Furthermore, it can reduce mutual interference between the first portion 61 of the battery disconnect unit and the high-voltage power distribution unit 64.

[0075] Please see Figures 4-6 The first part 61 of the battery pack circuit breaker unit may include a DC terminal block 611. The DC terminal block 611 includes a positive main terminal 6111, a negative main terminal 6112, and a first positive shunt terminal. The positive main terminal 6111 and the negative main terminal 6112 are adapted to be electrically connected to the cells of the battery pack 200 via a DC connector 202 passing through the wire passage opening 131. The DC connector 202 may include a main positive copper busbar and a main negative copper busbar. The main positive copper busbar can be connected to the positive main terminal 6111 through the wire passage opening 131, and the main negative copper busbar can be connected to the negative main terminal 6112 through the wire passage opening 131. This arrangement helps to shorten the current path from the cells of the battery pack 200 to the first part 61 of the battery pack circuit breaker unit, thereby reducing energy loss. It also helps to ensure the safety of the domain controller 100.

[0076] The partition 12 may be provided with a first wire-passing hole. The high-voltage power distribution unit 64 is electrically connected to the first positive shunt terminal through a second electrical connector passing through the first wire-passing hole. This facilitates the high-voltage power distribution unit 64 to achieve electrical connection with the first part 61 of the battery pack circuit breaker unit through the first wire-passing hole, and allows the second electrical connector to be more reasonably housed within the receiving space 11, thereby improving the safety of the domain controller 100.

[0077] For example, the vertical projection of the high-voltage power distribution unit 64 onto the partition 12 overlaps with the vertical projection of the first portion 61 of the battery pack circuit breaker unit. A first wiring hole is provided on the portion of the partition 12 corresponding to the first chamber 1114. This facilitates providing a preset, fixed wiring path for the electrical connections of the high-voltage power distribution unit 64, thereby helping to avoid the risk of short circuits caused by messy wiring harnesses inside the domain controller 100. It also facilitates assembly by personnel, thereby improving the assembly efficiency of the domain controller 100.

[0078] Please continue reading. Figures 4-6 In some embodiments, the domain controller 100 may include a fast charging connector 613. The fast charging connector 613 is located within the first receiving cavity 111 and is adapted to connect to a fast charging connector on the battery pack 200 via a fast charging connector 203 passing through a wiring opening 131. The fast charging connector 203 may include a positive fast charging copper busbar and a negative fast charging copper busbar, which can be connected to the fast charging connector 613 through the wiring opening 131. This arrangement helps reduce energy loss and also helps ensure the safety of the domain controller 100.

[0079] The first part 61 of the battery pack circuit breaker unit also includes a fast-charging relay 614 and a main negative relay 615. Along the second direction F2, the fast-charging relay 614 and the main negative relay 615 are located on the side of the fast-charging connector 613 and the DC connector 611 furthest from the mounting end 13. This prevents the fast-charging relay 614 and the main negative relay 615 from affecting the reliability of the connection between the fast-charging connector 613 and the DC connector 611. It also facilitates maintenance of the fast-charging connector 613 and the DC connector 611 by maintenance personnel. Furthermore, it improves the space utilization of the domain controller 100.

[0080] The DC terminal block 611 includes a second positive shunt terminal 6113 and a second negative shunt terminal 6114. The second positive shunt terminal 6113 is electrically connected to the fast charging terminal block 613 via a fast charging relay 614, and the second negative shunt terminal 6114 is electrically connected to the fast charging terminal block 613 via a main negative relay 615. This configuration helps improve the safety and reliability of the domain controller 100.

[0081] Please continue reading. Figures 4-6The battery pack 200 includes a second part of a battery pack circuit breaker unit. This second part includes at least a main positive relay and a second fuse. The main positive relay and the second fuse are electrically connected to a DC connection 202. The main positive relay and the second fuse can be located at the starting end of the DC connection 202. Therefore, when only maintenance of the battery pack 200 is required, the power supply to the battery pack 200 can be shut off by turning off the main positive relay switch, thus ensuring safe maintenance.

[0082] Please continue reading. Figures 4-6 In some embodiments, the electronic control assembly 102 includes a motor control unit (MCU) 62 located within a first receiving cavity 111. The motor control unit 62 and the first portion 61 of the battery pack disconnect unit are distributed along a third direction. This facilitates optimization of the spatial layout of the first receiving cavity 111 and enables better integration of the electronic control system.

[0083] The motor controller 62 includes a motor control filter 621. The motor control filter 621 has a positive terminal 6211 and a negative terminal 6212. The DC terminal block 611 includes a third positive shunt terminal 6115, which is electrically connected to the positive terminal 6211 via a wiring. The second negative shunt terminal 6114 is electrically connected to the negative terminal 6212 via a main negative relay 615. This configuration allows for start-stop control and safety protection of the motor controller 62, thereby improving vehicle safety and reliability.

[0084] Please continue reading. Figures 4-6 In some embodiments, a first baffle 1112 may be provided within the first receiving cavity 111. The first baffle 1112 has a first chamber 1114 and a second chamber 1115 on either side along the third direction F3. The first part 61, the wiring harness terminal connector 612, and the fast charging connector 613 are all located within the first chamber 1114. The motor controller 62 (Motor Control Unit, MCU) includes a drive module located within the second chamber 1115. This arrangement reduces mutual interference between the first part 61 of the battery pack circuit breaker unit and the motor controller 62 through the first baffle 1112, thereby helping to ensure the reliability of the domain controller 100 control.

[0085] The first baffle 1112 has a notch extending through it in a third direction F3, and the motor control filter 621 is located within the notch. This arrangement facilitates further optimization of the structural layout of the domain controller 100. It also facilitates better electromagnetic shielding of the domain controller 100.

[0086] Please continue reading. Figures 4-6In some embodiments, the first receiving cavity 111 is provided with a first baffle 1112 and a second baffle 1113 spaced apart, which divide the first receiving cavity 111 into a first chamber 1114, a second chamber 1115, and a third chamber 1116 arranged sequentially along a third direction F3. Specifically, the first baffle 1112, the partition 12, and a portion of the housing 101 can jointly define the first chamber 1114; the first baffle 1112, the second baffle 1113, the partition 12, and a portion of the housing 101 can jointly define the second chamber 1115; and the third baffle, the partition 12, and a portion of the housing 101 can jointly define the third chamber 1116. When the first receiving cavity 111 is in communication with the wire passage opening 131, at least one of the first chamber 1114, the second chamber 1115, and the third chamber 1116 can be in communication with the wire passage opening 131.

[0087] The electronic control assembly 102 includes a first electronic control module 61 located in the first chamber 1114, a second electronic control module 62 located in the second chamber 1115, and a third electronic control module 63 located in the third chamber 1116. Therefore, by setting the first baffle 1112 and the second baffle 1113, physical barriers can be provided between the first electronic control module 61, the second electronic control module 62, and the third electronic control module 63, thereby reducing mutual interference among them and thus helping to ensure the stability and reliability of the domain controller 100. Furthermore, it also helps to optimize the structural layout within the first receiving cavity 111, thereby improving the space utilization within the domain controller 100.

[0088] It should be noted that the installation positions of the first electronic control module 61, the second electronic control module 62 and the third electronic control module 63 can be interchanged. For example, the first electronic control module 61 can be located in the second chamber 1115. This application does not limit this.

[0089] Please continue reading. Figures 4-6 In some embodiments, the first electronic control module 61 may include a first portion 61 of the battery pack circuit breaker unit. This arrangement is beneficial for improving space utilization within the domain controller 100.

[0090] In some embodiments, the second electronic control module 62 includes a motor controller 62. Thus, by configuring the motor controller 62, direct current can be converted into alternating current for output to the vehicle's three-phase motor.

[0091] Please continue reading. Figures 4-6In some embodiments, the third electronic control module 63 includes a Battery Management System (BMS), a Vehicle Control Unit (VCU), and a Power Management System (PMS). This arrangement simplifies the system architecture and allows for a more compact domain controller 100.

[0092] Please continue reading. Figures 6-8 In some embodiments, the domain controller 100 may further include a first access cover 3. The end wall of the first receiving cavity 111, located away from the partition 12 along the first direction F1, is a first cover 2. The first cover 2 has a first access opening 21, which is at least partially opposite to the DC connector 611 and the wiring harness terminal connector 612. The first access cover 3 is detachably disposed at the first access opening 21. Specifically, the first access opening 21 may be partially opposite to the DC connector 611 and the wiring harness terminal connector 612, or it may be completely opposite to the DC connector 611 and the wiring harness terminal connector 612. Therefore, when only the DC terminal block 611 and the wire harness terminal connector 612 need to be repaired, the first inspection cover 3 connected to the first cover plate 2 can be removed to repair the DC terminal block 611 and the wire harness terminal connector 612 through the first inspection opening 21. This improves the convenience of repairing the first part 61 of the battery pack circuit breaker unit and helps to reduce the maintenance cost of the domain controller 100.

[0093] For example, the first inspection opening 21 can be a rectangular opening formed on the first cover plate 2, and the first inspection cover 3 can be connected to the first cover plate 2 by fasteners. This connection method is simple and helps to reduce the difficulty of replacing and repairing the first part 61 of the battery pack circuit breaker unit, thereby helping to reduce maintenance costs.

[0094] For example, the housing 101 may include a body 1 and a first cover 2. The end of the body 1 away from the partition 12 along the first direction F1 may be opened to form a first opening 1111. The first cover 2 is detachably disposed at the first opening 1111, so the first opening 1111 can be opened or closed through the first cover 2. This facilitates maintenance of the electrical control assembly 102 inside the first receiving cavity 111.

[0095] The first cover plate 2 can be detachably connected to the body 1 by means of fasteners, magnetic attraction, snap-fit, etc.

[0096] For example, the first opening 1111 can be formed into a rectangle, and the outer periphery of the first opening 1111 and the first cover plate 2 can be provided with multiple connection structures for connecting fasteners. This connection method is simple and helps to improve the reliability of the connection between the body 1 and the first cover plate 2.

[0097] Please see Figure 9 In some embodiments, the housing 101 may include a first housing portion 15 and a second housing portion 16 connected along a first direction F1. The first housing portion 15 and the second housing portion 16 may be integrally formed, which is beneficial to improving the connection strength between the first housing portion 15 and the second housing portion 16, and also beneficial to improving the assembly efficiency of the domain controller 100.

[0098] The circumferential dimension of the first housing portion 15 is larger than that of the second housing portion 16 to define a stepped portion 151. A portion of the third chamber 1116 is located at the stepped portion 151, and a communication connector mounting position 152 is provided at the portion of the stepped portion 151 that is in the first housing portion 15. The communication connector mounting position 152 has a third cable pass-through hole 122 communicating with the third chamber 1116. The domain controller 100 also includes a communication connector 104, which is mounted at the communication connector mounting position 152. Thus, interference with the housing 101 can be avoided when installing the communication connector 104, and the wiring harness can also extend into the third chamber 1116 through the third cable pass-through hole 122, thereby facilitating the assembly of the communication connector 104.

[0099] The partition 12 is disposed inside the second housing portion 16. This prevents the partition 12 from interfering with the assembly of the electronic control module 6 inside the first receiving cavity 111.

[0100] Please return to the reference. Figure 5 In some embodiments, a second wiring hole 121 is provided on the portion of the partition 12 opposite to the high-voltage power distribution unit 64. Along the second direction F2, the second wiring hole 121 is located on the side of the fixing hole 123 away from the mounting end 13, and a portion of the wiring harness of the high-voltage power distribution unit 64 enters the first receiving cavity 111 through the second wiring hole 121. Thus, the acquisition and communication lines of the high-voltage power distribution unit 64 can enter the first receiving cavity 111 through the second wiring hole 121, thereby better optimizing the wiring harness layout within the domain controller 100.

[0101] Please continue reading. Figure 9In some embodiments, the electronic control assembly 102 includes a high-voltage power distribution unit 64 and a dual-function power module 65 disposed at intervals along a third direction F3 within the second receiving cavity 112. The dual-function power module 65 includes a direct current to direct current (DC-DC) converter and an on-board charger (OBC). This arrangement improves the space utilization of the domain controller 100 and also optimizes the electrical performance of the domain controller 100.

[0102] Please continue reading. Figure 9 In some embodiments, the high-voltage power distribution unit 64 includes a high-voltage power distribution board 641. The DC-DC converter includes a DC filter board 652. The on-board charger includes an on-board charging filter board 651. The DC filter board 652 and the on-board charging filter board 651 are spaced apart on the partition 12 and located on the side of the wiring harness terminal connector 612 near the mounting end 13. This arrangement facilitates optimization of the structural layout of the second receiving cavity 112.

[0103] The high-voltage switchboard 641 is installed in the second receiving cavity 112 and is stacked with the DC filter board 652 and the vehicle charging filter board 651. This helps to further optimize the space utilization of the domain controller 100, thereby facilitating the miniaturization of the domain controller 100.

[0104] Please continue reading. Figure 9 and Figure 10 The domain controller 100 also includes a second access cover 5. A high-voltage distribution board 641 is located on the side of the DC filter board 652 and the on-board charging filter board 651 away from the partition 12. The surface of the high-voltage distribution board 641 facing away from the partition 12 has a first fuse 642. The end wall of the second receiving cavity 112, along the first direction F1 away from the partition 12, is a second cover plate 4. The second cover plate 4 has a second access opening 41, which communicates with the second receiving cavity 112 and faces the first fuse 642. The second access cover 5 is detachably disposed at the second access opening 41. Therefore, when only the first fuse 642 needs maintenance, only the second access cover 5 connected to the second cover plate 4 needs to be removed to access the first fuse 642 through the second access opening 41, thereby improving the convenience of maintenance and reducing the maintenance cost of the domain controller 100.

[0105] Please continue reading. Figure 9 and Figure 10In some embodiments, the housing 101 includes a body 1 and a second cover plate 4. One end of the body 1 along the first direction F1 is open to form a second opening 1121. A partition 12 is disposed inside the body 1. The second cover plate 4 is detachably disposed at the second opening 1121 and, together with the partition 12 and the body 1, forms a second receiving cavity 112. The second cover plate 4 can open or close the second opening 1121. When the second cover plate 4 opens the second opening 1121, the electronic control module 6 inside the second receiving cavity 112 can be repaired through the second opening 1121. When the second cover plate 4 closes the second opening 1121, the electronic control module 6 inside the second receiving cavity 112 can be protected. Therefore, when it is necessary to repair the electronic control module 6 inside the second receiving cavity 112, the second cover plate 4 can be removed, which helps to reduce the difficulty and cost of repair, and thus improves the user experience.

[0106] Please continue reading. Figure 5 In some embodiments, the partition 12 is provided with a third wire passage hole 122. Along the second direction F2, the third wire passage hole 122 is located on the side of the wiring harness terminal connector 612 near the mounting end 13. Part of the wiring harness of the dual-purpose power module 65 enters the first receiving cavity 111 through the third wire passage hole 122. This shortens the length of part of the wiring harness of the dual-purpose power module 65, thereby reducing the manufacturing cost of the domain controller 100 and avoiding the problem of wire harness tangling, thus improving the safety and reliability of the domain controller 100.

[0107] Please continue reading. Figure 9 In some embodiments, a three-phase connector mounting position 14 is provided on the other end of the housing 101 along the second direction F2. The three-phase connector mounting position 14 has a connection via that communicates with the receiving space 11. The domain controller 100 includes a three-phase connector 103, which is mounted at the three-phase connector mounting position 14. Thus, when the three-phase connector 103 is mounted at the three-phase connector mounting position 14, it can be electrically connected to the electrical control module 6 in the receiving space 11 through the connection via, thereby facilitating better management of the wiring harness in the receiving space 11 and improving safety and reliability.

[0108] Please continue reading. Figure 4 and Figure 9For example, a waterproof vent valve 17 is installed on the housing 101. The waterproof vent valve 17 can be located on one side of the three-phase connector mounting position 14. Thus, the waterproof vent valve 17 can balance the pressure difference between the inside and outside of the housing 101 for the second chamber 1115, thereby preventing seal failure under pressure differential. It can also significantly slow down the rate at which external humid air enters the housing 101, thereby reducing the risk of condensation on the surfaces of critical electronic components in the second chamber 1115, and thus improving the security of the domain controller 100. Simultaneously, it can isolate dust and moisture from the outside of the housing 101, thereby helping to ensure the waterproof and dustproof rating of the domain controller 100.

[0109] For example, the partition 12 may be provided with a water flow channel. The water flow channel can be used to dissipate heat from the electronic control assembly 102.

[0110] In some embodiments, both the housing 101 and the partition 12 are made of metal. This helps to ensure the shielding effect of the domain controller 100.

[0111] It is understood that in the various embodiments of this application, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0112] It is understood that the various implementation methods described in this application can be implemented individually or in combination, and the embodiments of this application are not limited in this respect.

[0113] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the aforementioned method implementations, and will not be repeated here.

[0114] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A domain controller applied to a battery pack, characterized in that, include: The housing has a mounting end along a second direction, the mounting end being adapted to be connected to a battery pack, the mounting end having a wire passage opening, and the housing having a receiving space communicating with the wire passage opening; An electronic control assembly, located within the accommodating space, and including a high-voltage power distribution unit; A wire harness terminal connector is disposed within the receiving space. The wire harness terminal connector is electrically connected to the high-voltage power distribution unit and is adapted to be connected to a connector on the battery pack via a first electrical connector passing through the wire passage opening.

2. The domain controller according to claim 1, characterized in that, The accommodating space is provided with a partition, which divides the accommodating space into a first accommodating cavity and a second accommodating cavity distributed along a first direction. The first accommodating cavity is connected to the wire passage opening. The high-voltage power distribution unit is located in the second accommodating cavity. The partition is provided with a fixing hole that connects the first accommodating cavity and the second accommodating cavity. The wire harness terminal connector is fixed at the fixing hole.

3. The domain controller according to claim 2, characterized in that, The electronic control assembly includes a first part of a battery pack circuit breaker unit located in the first accommodating cavity. The first part includes a DC terminal block, which includes a positive main terminal, a negative main terminal, and a first positive shunt terminal. The positive main terminal and the negative main terminal are adapted to be electrically connected to the battery cells of the battery pack through a DC connector passing through the wire opening. The partition plate is provided with a first wire passage hole, and the high-voltage power distribution unit is electrically connected to the first positive shunt terminal through a second electrical connector passing through the first wire passage hole.

4. The domain controller according to claim 3, characterized in that, The domain controller further includes a first access cover, wherein the end wall of the first receiving cavity away from the partition along the first direction is a first cover plate, the first cover plate has a first access opening, the first access opening is directly opposite at least a portion of the DC terminal block and the wiring harness terminal connector, and the first access cover is detachably disposed at the first access opening.

5. The domain controller according to claim 3, characterized in that, include: A fast charging connector is located within the first receiving cavity and is adapted to be connected to a fast charging connector on the battery pack via a fast charging connector that passes through the wire opening. The first part also includes a fast charging relay and a main negative relay; Along the second direction, the fast charging relay and the main negative relay are located on the side of the fast charging terminal block and the DC terminal block away from the mounting end; The DC terminal block includes a second positive shunt terminal and a second negative shunt terminal. The second positive shunt terminal is electrically connected to the fast charging terminal block via the fast charging relay, and the second negative shunt terminal is electrically connected to the fast charging terminal block via the main negative relay.

6. The domain controller according to claim 5, characterized in that, The electronic control assembly includes a motor controller located within the first accommodating cavity. The motor controller is distributed along a third direction with the first part. The motor controller includes a motor control filter, which has a positive terminal and a negative terminal. The DC terminal block includes a third positive shunt terminal, which is electrically connected to the positive terminal block via a wiring. The second negative shunt terminal is electrically connected to the negative terminal via the main negative relay.

7. The domain controller according to claim 6, characterized in that, The first receiving cavity is provided with a first baffle, and the two sides of the first baffle along the third direction are respectively a first chamber and a second chamber. The first part, the wire harness terminal connector and the fast charging connector are all located in the first chamber. The motor controller includes a drive module located in the second chamber. The first baffle has a notch that penetrates the first baffle in a third direction, and the motor control filter is located within the notch.

8. The domain controller according to claim 2, characterized in that, The first receiving cavity is provided with a first baffle and a second baffle that are spaced apart. The first baffle and the second baffle divide the first receiving cavity into a first chamber, a second chamber and a third chamber arranged sequentially along a third direction. The electronic control assembly includes a first electronic control module located in the first chamber, a second electronic control module located in the second chamber and a third electronic control module located in the third chamber.

9. The domain controller according to claim 8, characterized in that, The first electronic control module includes a first part of a battery pack circuit breaker unit; and / or, The second electronic control module includes a motor controller; and / or, The third electronic control module includes a power management system, a vehicle controller, and a power management system.

10. The domain controller according to claim 8, characterized in that, The third electronic control module includes a power management system, a vehicle controller, and a power management system; The housing includes a first housing portion and a second housing portion connected along the first direction. The circumferential dimension of the first housing portion is larger than that of the second housing portion to define a stepped portion. A portion of the third chamber is located at the stepped portion. A communication connector mounting position is provided at the portion of the stepped portion located in the first housing portion. The communication connector mounting position has a third cable hole communicating with the third chamber. The partition is disposed inside the second housing portion. The domain controller also includes a communication connector, which is mounted in the communication connector mounting position.

11. The domain controller according to claim 2, characterized in that, The partition plate has a second wire passage hole on the portion facing the high-voltage power distribution unit. Along the second direction, the second wire passage hole is located on the side of the fixing hole away from the mounting end. A portion of the wires of the high-voltage power distribution unit enters the first receiving cavity through the second wire passage hole.

12. The domain controller according to claim 2, characterized in that, The electronic control assembly includes a high-voltage power distribution unit and a dual-function power module spaced apart in the second accommodating cavity along a third direction. The dual-function power module includes a DC-DC converter and an on-board charger.

13. The domain controller according to claim 12, characterized in that, The high-voltage power distribution unit includes a high-voltage power distribution board, the DC converter includes a DC filter board, and the on-board charger includes an on-board charging filter board. The DC filter board and the on-board charging filter board are spaced apart on the partition and are located on the side of the wiring harness terminal connector closer to the mounting end. The high-voltage distribution board is installed in the second accommodating cavity and is stacked with the DC filter board and the vehicle charging filter board.

14. The domain controller according to claim 13, characterized in that, The domain controller also includes a second access cover, with the high-voltage switchboard located on the side of the DC filter board and the vehicle charging filter board away from the partition. The high-voltage distribution board has a first fuse on the surface opposite to the partition. The end wall of the second receiving cavity away from the partition along the first direction is a second cover plate; the second cover plate has a second maintenance opening, the second maintenance opening communicates with the second receiving cavity, the second maintenance opening is directly opposite the first fuse, and the second maintenance cover is detachably disposed at the second maintenance opening.

15. The domain controller according to claim 12, characterized in that, The partition plate is provided with a third wire passage hole. Along the second direction, the third wire passage hole is located on the side of the wire harness terminal connector near the mounting end. Part of the wire harness of the two-in-one power module enters the first receiving cavity through the third wire passage hole.

16. The domain controller according to claim 1, characterized in that, The housing is provided with a three-phase connector mounting position at the other end along the second direction. The three-phase connector mounting position is provided with a connection through hole, which communicates with the accommodating space. The domain controller includes a three-phase connector, which is mounted at the three-phase connector mounting position.

17. The domain controller according to claim 2, characterized in that, Both the housing and the partition are metal parts.

18. A battery pack assembly, characterized in that, include: A battery pack having multiple connectors on it; The domain controller is any one of claims 1-17, wherein the domain controller is fixed and electrically connected to the battery pack and is located outside the battery pack, and along the second direction, the connector is located on the end wall of the battery pack away from the domain controller.

19. The battery pack assembly according to claim 18, characterized in that, The electronic control assembly includes a first part of a battery pack circuit breaker unit, the first part being adapted to be electrically connected to the battery cells of the battery pack via a DC connector passing through the wire opening; the battery pack includes a second part of the battery pack circuit breaker unit, the second part including at least a main positive relay and a second fuse, the main positive relay and the second fuse being electrically connected to the DC connector.

20. A vehicle, characterized in that, Includes the battery pack assembly as described in claim 18 or claim 19.

21. The vehicle according to claim 20, characterized in that, The second direction is the front-to-back direction of the vehicle, and the battery pack is located at the rear end of the domain controller.

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