Electric control device, battery device and electric device

Abstract

The utility model relates to the technical field of battery devices, and provides an electric control device, a battery device and an electric device, and the electric control device comprises a shell, a wire harness structure, an electric part and a battery management main control board. The shell is provided with an accommodating space; the electrical part is arranged in the accommodating space, and a bar piece is arranged on the electrical part; one end of the wire harness structure is connected to the bar piece, and the other end of the wire harness structure is connected with the battery management main control board; wherein at least part of the wire harness structure is connected to the inner wall of the shell in a bonding mode, the wire harness structure is connected with the inner wall of the shell in a bonding mode, so that the connection stability of the wire harness structure in the shell is improved, and at least part of the wire harness structure is tightly attached to the inner wall of the shell; and the internal space of the shell occupied by the wire harness structure can be further reduced, so that the overall size of the shell can be designed to be more compact, and finally, the grouping efficiency of the whole battery device pack is improved and the design difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular provides an electronic control device, a battery device, and an electrical device. Background Technology

[0002] The global automotive industry is currently facing enormous challenges related to energy and the environment. Pure electric vehicles, with their high energy efficiency and zero pollution, are increasingly becoming the future direction of the automotive industry. As a core component of electric vehicles, the safety of the power battery directly affects the overall vehicle performance and driving safety.

[0003] The power battery contains modules such as battery cells, electronic control devices, and battery management systems. The electronic control device includes electrical components (such as relays, fuses, pre-charge resistors, pre-charge relays, and current sensors) and sampling harnesses for collecting electrical signals. Typically, one end of the sampling harness is bolted to a latch on an electrical component, while the other end is plugged into the battery management main control board. Furthermore, the sampling harness is often secured with cable ties within the electronic control device, which makes it prone to wear or loosening as the electronic control device moves around. Utility Model Content

[0004] The purpose of this invention is to provide an electronic control device, a battery device, and an electrical equipment, which aims to solve the problem of poor stability of the sampling harness in existing electronic control devices.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] In a first aspect, embodiments of this application provide an electronic control device, including:

[0007] An outer casing having a receiving space;

[0008] An electrical component is disposed within the accommodating space, and a plate is provided on the electrical component;

[0009] Battery management main control board, and,

[0010] A wiring harness structure, one end of which is connected to the battery plate, and the other end of which is connected to the battery management main control board;

[0011] The wire harness structure is at least partially attached to the inner wall of the outer casing;

[0012] An adhesive layer is provided on the wire harness structure and / or the inner wall of the housing, and the wire harness structure is connected to the inner wall of the housing through the adhesive layer.

[0013] The beneficial effects of this utility model are as follows: The electronic control device of this utility model connects the wire harness structure to the inner wall of the shell through an adhesive connection method, thereby improving the connection stability of the wire harness structure inside the shell. Moreover, since at least part of the wire harness structure is in close contact with the inner wall of the shell, the internal space occupied by the wire harness structure can be further reduced, so that the overall volume of the shell can be designed to be more compact, ultimately improving the assembly efficiency of the battery pack and reducing the design difficulty.

[0014] In some embodiments, the wire harness structure includes a conductor body with a film layer disposed thereon, and the conductor body is formed on the inner wall of the housing by hot pressing the film layer.

[0015] By adopting the above technical solution, using hot pressing process and combining film layer, the conductor body of the wire harness structure is fixed to the inner wall of the outer shell.

[0016] In some embodiments, the housing is provided with a positioning hole for accommodating a positioning structure that positions the conductor body.

[0017] By adopting the above technical solution, the positioning holes on the outer shell are used to set the positioning structure, so as to position the wire harness structure during the hot pressing process and reduce the change in the position of the wire harness structure relative to the outer shell during the injection molding process.

[0018] In some embodiments, the housing has a receiving groove, and at least a portion of the wire harness structure is received within the receiving groove.

[0019] By adopting the above technical solution, at least a portion of the wire harness structure is accommodated using a receiving groove, thereby further reducing the space in which the wire harness structure is exposed outside the housing.

[0020] In some embodiments, the housing includes a limiting structure for limiting the wire harness structure within the receiving groove.

[0021] By adopting the above technical solution, the wire harness structure placed in the receiving groove is limited by the limiting structure, so that the wire harness structure is kept in the receiving groove.

[0022] In some embodiments, the limiting structure includes a colloid filled within the receiving groove; or...

[0023] The limiting structure includes a snap fastener disposed within the receiving groove and used to engage with the wire harness structure.

[0024] In some embodiments, the wire harness structure includes at least two connectors and a connecting portion connected to each of the connectors, wherein at least a portion of the connecting portion is attached to the inner wall of the housing;

[0025] Wherein, at least one of the joint portions is welded to the connecting portion; or...

[0026] At least one of the connector portions is threadedly connected to the connecting portion; or...

[0027] At least one of the joint portions is integrally formed with the connecting portion.

[0028] By adopting the above technical solutions, the joint can be connected to the connecting part through welding, threaded connection, or integral molding.

[0029] In some embodiments, the connecting portion has a flat connecting end, which is connected to the connector portion.

[0030] By adopting the above technical solution, the flat connecting end has a larger contact area with the joint, making it more suitable for welding the connecting part and the joint part together by ultrasonic welding or resistance welding.

[0031] In some embodiments, a passivation layer is formed on the surface of the connector portion.

[0032] By adopting the above technical solution, a passivation layer is formed on the surface of the mating head to avoid the problem of tin melting due to tin plating when the wiring and the shell are injection molded.

[0033] In some embodiments, the housing includes a top cover and a base that surrounds the top cover to form an accommodating space;

[0034] The wiring harness structure includes a sampling line, which includes at least two connectors and a connection portion connected to each connector. Some of the connectors of the sampling line are connected to the connection positions of the electrical components, and the remaining connectors of the sampling line are connected to the connection positions of the battery management main control board.

[0035] By adopting the above technical solution, the efficiency of connecting the sampling line to each electrical component and the battery management main control board is improved by connecting a portion of each connector of the sampling line to the corresponding connection position of the electrical component, and connecting the remaining connectors to the corresponding connection position of the battery management main control board.

[0036] In some embodiments, the housing includes a locking attachment, the top cover is connected to the base via the locking attachment; and the locking position of the locking attachment on the top cover coincides with the position of the corresponding connector on the top cover.

[0037] By adopting the above technical solution, the top cover and the base are locked together by the locking attachment, which also realizes the assembly of the top cover and the base, as well as the connection of the sampling line to the electrical components and the connection of the battery management main control board. This simplifies the assembly process, reduces manufacturing costs, and improves the assembly efficiency of the electronic control device.

[0038] Secondly, embodiments of this application also provide a battery device, including the aforementioned electronic control device and battery cell assembly, wherein the battery cell assembly is electrically connected to the electronic control device.

[0039] Thirdly, embodiments of this application also provide an electrical device, including the battery device described above, which is used to store or provide electrical energy.

[0040] It is understood that the beneficial effects of the second and third aspects mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the structure of the electrical device provided in an embodiment of the present utility model;

[0043] Figure 2 This is a schematic diagram of the structure of the battery device provided in an embodiment of the present utility model;

[0044] Figure 3 Exploded view of the electronic control device provided in the embodiment of this utility model;

[0045] Figure 4 A cross-sectional view of the top cover of the electronic control device provided in Embodiment 1 of this utility model;

[0046] Figure 5 This is a schematic diagram of the top cover of the electronic control device provided in Embodiment 2 of this utility model;

[0047] Figure 6 A cross-section of the top cover of the electronic control device provided in Embodiment 2 of this utility model. Figure 1 ;

[0048] Figure 7 A cross-section of the top cover of the electronic control device provided in Embodiment 2 of this utility model. Figure 2 ;

[0049] Figure 8 A schematic diagram of the wiring harness structure of the electrical control device provided in this embodiment of the utility model.

[0050] The following are the labeling elements in the figure:

[0051] 1000, Vehicle; 100, Electronic control device; 1001, Battery device; 200, Battery cell assembly; 300, Housing;

[0052] 10. Outer shell; 11. Top cover; 12. Base; 11a. Positioning hole; 11b. Receiving groove; 13. Locking accessory; 11c1. Glue; 11c2. Fastener;

[0053] 20. Wire harness structure; 21. Connector; 22. Connection part; 22a. Connection end;

[0054] 30. Electrical components;

[0055] 40. Battery Management Main Control Board

[0056] 51. Adhesive layer; 52. Film layer. Detailed Implementation

[0057] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0058] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0059] Furthermore, 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0060] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can 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 utility model according to the specific circumstances.

[0061] The battery unit contains modules such as individual battery cells, a high-voltage power distribution system, and a battery management system. The high-voltage power distribution system primarily controls the smooth operation of the battery's charging and discharging circuits. It is responsible for controlling the power-on / off, pre-charging, and charging processes of the high-voltage electrical circuit. The high-voltage power distribution system includes various electrical components, electrical connectors for circuit connections, sampling components for collecting circuit signals, and connectors for transmitting electrical signals. Examples of electrical components include high-voltage relays, shunts, pre-charging relays, pre-charging resistors, and fuses; electrical connectors include copper busbars, aluminum busbars, and wiring harnesses; sampling components include low-voltage sampling lines and sampling terminals; and connectors include low-voltage connectors and high-voltage connectors.

[0062] The main functions of a battery management system include data acquisition, status detection, safety protection, charging control, energy management, and equalization management. It includes a master control unit, the Battery Management Unit (BMU), which comprises data acquisition circuitry, sensors, and a microcontroller (MCU) to process the acquired data and communicate with other vehicle systems. In a distributed architecture, the battery management system may also include slave control units (CSCs). The CSC is responsible for detecting a certain number of battery cells or modules, collecting voltage, current, and temperature data, and sending this information to the BMU. The CSC mainly includes sensors for detecting battery cells and data acquisition circuitry.

[0063] In addition to electrical components (relays, fuses, pre-charge resistors, pre-charge relays, and current sensors), high-voltage power distribution equipment also includes sampling harnesses for collecting electrical signals. Typically, one end of the sampling harness is bolted to a latch on the electrical component, while the other end is plugged into the battery management main control board. Furthermore, the sampling harness is often secured with cable ties, which makes it prone to wear or loosening as the electrical control device moves around.

[0064] In view of this, this application provides an electronic control device that connects the wiring harness structure to the inner wall of the housing by adhesive bonding, thereby improving the connection stability of the wiring harness structure within the housing. Furthermore, since at least a portion of the wiring harness structure is tightly attached to the inner wall of the housing, the internal space occupied by the wiring harness structure within the housing can be further reduced, allowing the overall volume of the housing to be designed to be more compact, ultimately improving the assembly efficiency of the battery pack and reducing design complexity.

[0065] Please refer to Figures 3 to 8 In a first aspect, embodiments of this application provide an electronic control device 100, including a housing 10, a wiring harness structure 20, electrical components 30, and a battery management main control board 40.

[0066] The housing 10 has an accommodating space; the electrical component 30 is disposed in the accommodating space and has a switch plate on it; one end of the wiring harness structure 20 is connected to the switch plate and the other end is connected to the battery management main control board 40; wherein the wiring harness structure 20 is at least partially attached to the inner wall of the housing 10.

[0067] Understandably, the housing 10 is the main body of the electrical control device 100, used to support and fix various components; that is, the housing 10 is a load-bearing structure. The housing 10 should have accommodating space for the installation of various electrical components 30.

[0068] The wiring harness structure 20 refers to the wiring structure used to realize the electrical connection between each electrical component 30 in the electronic control device 100 and the battery management unit, slave control unit and battery device. Therefore, the wiring harness structure 20 can be a sampling line to realize the electrical connection between the battery management unit and the electrical component 30, so as to collect low voltage signals and high voltage signals of the electrical component 30.

[0069] Electrical component 30 can be a relay, fuse, pre-charge resistor, pre-charge relay, or current sensor, etc. Taking a fuse as an example, a fuse is the "fuse" in an electrical control device. When a short circuit or severe overload occurs in the circuit, the fuse will quickly melt and permanently cut off the circuit to prevent serious accidents such as fires. Depending on the location, it may be a main fuse, a fast-charging fuse, etc.

[0070] The battery management main control board 40 is the main structural component of the battery management system, namely the battery management unit (BMU). The battery management main control board 40 includes data acquisition circuits, sensors, and a microcontroller (MCU) to process the acquired data and communicate with other systems in the vehicle.

[0071] Since the wire harness structure 20 is typically fixed inside the housing 10 using a binding structure such as cable ties or ropes, this not only compresses the installation space of other electrical components 30 within the housing 10, resulting in a larger overall size of the housing 10, but also reduces the connection stability of the wire harness structure 20 within the housing 10. Therefore, fixing the wire harness structure 20 to the inner wall of the housing 10 using a bonding connection method can effectively improve the connection stability of the wire harness structure 20 on the housing 10. Simultaneously, the bonding connection method allows the wire harness structure 20 to be tightly attached to the inner wall of the housing 10, which to some extent facilitates the miniaturization of the overall size of the electronic control device, thereby improving the integration of the electronic control device.

[0072] Here, the connection between the wire harness structure 20 and the outer shell 10 can be a direct adhesive connection, for example, by attaching a film structure to the wire harness structure 20 and fixing the wire harness structure 20 to the outer shell 10 by hot pressing or injection molding; or, the connection between the wire harness structure 20 and the outer shell 10 can be an indirect adhesive connection, for example, by providing a double-sided adhesive-like structure on the wire harness structure 20 to tightly adhere the wire harness structure 20 to the inner wall of the outer shell 10.

[0073] The electronic control device 100 of this utility model connects the wiring harness structure 20 to the inner wall of the housing 10 by adhesive bonding, thereby improving the connection stability of the wiring harness structure 20 within the housing 10. Furthermore, since at least a portion of the wiring harness structure 20 is tightly attached to the inner wall of the housing 10, the internal space occupied by the wiring harness structure 20 within the housing 10 can be further reduced, allowing the overall volume of the housing 10 to be designed to be more compact, ultimately improving the assembly efficiency of the battery pack and reducing design complexity.

[0074] Please refer to Figure 7 or Figure 8 In some embodiments, an adhesive layer 51 is provided on the wire harness structure 20 and / or the inner wall of the housing 10, and the wire harness structure 20 is connected to the inner wall of the housing 10 through the adhesive layer 51.

[0075] Understandably, adhesive layer 51 refers to a layer structure with adhesive properties on its surface. Here, adhesive layer 51 is usually a thin layer structure with two large contact surfaces. Therefore, depending on the actual usage requirements, one side of adhesive layer 51 can be selected to be adhesive, or both sides of adhesive layer 51 can be selected to be adhesive. Furthermore, the location of adhesive layer 51 can also be selected according to the actual needs of the processing. For example, adhesive layer 51 can be placed on the wire harness structure 20; or, adhesive layer 51 can be placed on the inner wall of the housing 10; or, adhesive layer 51 can be provided on both the surface of the wire harness structure 20 and the inner wall of the housing 10.

[0076] In this way, the adhesive layer 51 itself is adhesive, so that the wire harness structure 20 is tightly attached to the inner wall of the housing 10.

[0077] Please refer to Figure 5 and Figure 6 In some embodiments, the wire harness structure 20 includes a conductor body with a film layer 52 disposed thereon, and the conductor body is formed on the inner wall of the outer casing 10 by hot pressing the film layer 52.

[0078] Understandably, hot pressing is a process that uses heat energy to change the physical / chemical state of a material and uses mechanical pressure to shape the material.

[0079] The conductor body is the main part of the wire harness structure 20, and it is also the conductor part whose surface is not covered with insulating material. The film layer 52 is a thin film structure that can meet the requirements of hot pressing. The material of the film layer 52 can be polyester film, thermoplastic polyurethane, cyclic olefin copolymer, etc. During the hot pressing process, the film layer 52 is heated to a certain temperature and becomes molten. Then, it is re-solidified after being squeezed by mechanical pressure and connected to the inner wall surface of the outer shell 10 to fix the conductor body to the outer shell 10.

[0080] Thus, by using a hot pressing process and combining it with the film layer 52, the conductor body of the wire harness structure 20 is fixed to the inner wall of the outer casing 10.

[0081] Please refer to Figure 4 In some embodiments, the housing 10 is provided with a positioning hole 11a, which is used to accommodate a positioning structure that positions the conductor body.

[0082] Understandably, during the hot pressing process, a molding die is required. When placing the wire harness structure 20 inside the molding die, due to cost considerations, no additional positioning structure is set inside the molding die to position the wire harness structure 20. Therefore, during the hot pressing process, the wire harness structure 20 is easily displaced by mechanical pressure impact.

[0083] To solve the above problems, a positioning structure can be added to the molding mold of the outer shell 10 to position the wire harness structure 20. After the outer shell 10 is injection molded, the positioning structure is separated from the outer shell 10 by core pulling, thus forming a positioning hole 11a on the outer shell 10.

[0084] Here, depending on the shape and size of the wire harness structure 20, the positioning structure can be a columnar structure, a needle-like structure, or a combination of both.

[0085] Thus, the positioning hole 11a on the outer shell 10 is used to set the positioning structure to position the wire harness structure 20 during the hot pressing process, so as to reduce the change in the position of the wire harness structure 20 relative to the outer shell 10 during the injection molding process.

[0086] Please refer to Figure 7 In some embodiments, the housing 10 has a receiving groove 11b, and at least a portion of the wire harness structure 20 is received in the receiving groove 11b.

[0087] Understandably, the receiving groove 11b is a groove structure formed by an inward indentation of the surface of the outer shell 10. The structure type of the receiving groove 11b can be a single-sided open groove structure formed by an indentation on one side of the surface of the outer shell 10; or, it can be a double-sided open groove structure formed by indentations on opposite sides of the surface of the outer shell 10. Furthermore, the double-sided open groove structure can also be partially or completely connected on both sides according to actual usage requirements. That is, if it is partially connected, a through hole is opened on the bottom wall of the groove structure; if it is completely connected, the bottom wall of the groove structure is completely removed. In this case, the receiving groove 11b is also a through groove that penetrates the outer shell 10.

[0088] Depending on the actual usage requirements, at least a portion of the wire harness structure 20 may be housed within the receiving groove 11b. For example, it may be possible to house all of the wire harness structure 20 within the receiving groove 11b; or, it may be possible to house only a portion of the wire harness structure 20 within the receiving groove 11b.

[0089] In this way, at least a portion of the wire harness structure 20 is accommodated by the accommodating slot 11b, thereby reducing the wire harness structure 20 exposed in the accommodating space of the housing 10, and further improving the integration of the electronic control device.

[0090] Please refer to Figure 7 and Figure 8 In some embodiments, the housing 10 includes a limiting structure for limiting the wire harness structure 20 within the receiving groove 11b.

[0091] Understandably, the wire harness structure 20 placed in the receiving groove 11b has the potential for insufficient connection stability. That is, the wire harness structure 20 is difficult to fix and limit within the receiving groove 11b. Therefore, it is necessary to add a limiting structure to limit and fix the wire harness structure 20 within the receiving groove 11b.

[0092] The limiting structure can be externally installed in the receiving groove 11b. For example, the limiting structure can be a colloid, a colloid block, or a combination of the two. Alternatively, the limiting structure can be integrally molded and built into the receiving groove 11b. For example, the limiting structure can be a limiting protrusion, a limiting groove, or a limiting buckle formed on the groove wall of the receiving groove 11b.

[0093] For example, a through receiving groove 11b is provided at the outer casing 10. The wire harness structure 20 is placed in the receiving groove 11b, and then the adhesive is filled into the receiving groove 11b to limit and fix the wire harness structure 20.

[0094] For example, a non-through receiving groove 11b is provided at the housing 10, and a limiting buckle is provided at the groove wall of the receiving groove 11b. The wire harness structure 20 is placed in the receiving groove 11b and then snapped into the limiting buckle.

[0095] Thus, the limiting structure is used to limit the wire harness structure 20 placed in the receiving groove 11b, so that the wire harness structure 20 is kept in the receiving groove 11b.

[0096] Please refer to Figure 7 and Figure 8 In some embodiments, the limiting structure includes a colloid 11c1 filled within the receiving groove 11b; or,

[0097] The limiting structure includes a snap fastener 11c2 disposed in the receiving groove 11b and used to snap onto the wire harness structure 20.

[0098] Understandably, the colloid 11c1 is a filler independently disposed relative to the outer shell 10. The colloid 11c1 has a certain fluidity before filling the receiving groove 11b, and after filling, the colloid 11c1 gradually loses its fluidity and fills the receiving groove 11b completely. The snap-fit ​​member 11c2 is a snap-fit ​​structure that can be integrally formed on the groove wall of the receiving groove 11b, or it can be fixed to the groove wall of the receiving groove 11b by an additional connecting structure.

[0099] Thus, by filling the receiving groove 11b with colloid 11c1, or by snapping it onto the wire harness structure 20 with fastener 11c2, the wire harness structure 20 is confined within the receiving groove 11b.

[0100] Please refer to Figures 3 to 6 In some embodiments, the wire harness structure 20 includes at least two connectors 21 and a connecting portion 22 connected to each connector 21, with at least a portion of the connecting portion 22 attached to the inner wall of the housing 10.

[0101] In this configuration, at least one joint portion 21 is welded to the connecting portion 22; or, at least one joint portion 21 is threaded to the connecting portion 22; or, at least one joint portion 21 is integrally formed with the connecting portion 22.

[0102] Understandably, connector 21 is the connector end that connects the wire harness structure 20 to the electrical components 30, the battery management unit, and the slave control unit. Of course, depending on the connection object, the shape and structure of connector 21 will be adjusted accordingly. For example, connector 21 can be a straight copper busbar, a plug connector, etc. Connector 22 is the wire part that connects each connector 21.

[0103] The connecting part 22 is the main body of the wire harness structure 20 and also occupies the internal space of the housing 10. At least a portion of the connecting part 22 is connected to the inner wall of the housing 10 by means of attachment.

[0104] The connection methods between the connector 21 and the connecting part 22 include, but are not limited to, welding connection, threaded connection and integral molding connection.

[0105] Here, the welding connection can be ultrasonic welding or resistance welding. Furthermore, both the joint portion 21 and the connecting portion 22 are provided with hole structures, and the connection is achieved by fasteners passing through these hole structures. Additionally, the joint portion 21 and the connecting portion 22 are extruded or cast together.

[0106] Thus, the joint 21 can be connected to the connecting part 22 by welding, threaded connection, or integral molding.

[0107] Please refer to Figure 6 In some embodiments, the connecting portion 22 has a flat connecting end 22a, which is connected to the connector portion 21.

[0108] Understandably, the connecting end 22a is the end where the connecting part 22 connects to the connector part 21. The flat shape of the connecting end 22a means that it is thinner and has a larger contact area with the connector part 21.

[0109] Here, a flat connection can be understood as forming a flat surface on the surface of the connecting end 22a facing the connector 21, or pressing the entire connecting end 22a to form a flat structure. In this case, the connecting end 22a has two relatively flat surfaces.

[0110] Optionally, the connecting part 22 includes multiple conductive wires, each conductive wire is laid flat, the connecting end 22a of each conductive wire is flat, and the connecting part 22 and the connector part 21 are both independently formed components.

[0111] Thus, the flat connecting end 22a has a larger contact area with the joint 21, making it more suitable for the connecting part 22 and the joint 21 to be welded together by ultrasonic welding or resistance welding.

[0112] In some embodiments, a passivation layer (not shown) is formed on the surface of the connector portion 21.

[0113] Understandably, the passivation layer is used to improve the corrosion resistance of the connector 21. Since the connector 21 needs to be connected to the electrical components 30, the connection points of the battery management cells and the connection points of the slave control unit, the connector 21 is very likely to be exposed outside the housing 10. Therefore, it is necessary to improve its corrosion resistance by setting a passivation layer.

[0114] Here, a passivation layer can be formed on all or part of the surface of the connector 21, and the thickness of the passivation layer can be adjusted according to the specific application scenario. Generally, the thickness of the passivation layer ranges from a few nanometers to tens of nanometers. In particular, when the connector 21 is injection molded together with the outer shell 10, the traditional tin plating method is prone to melting of the tin layer by the high-temperature injection molding material, thus failing to provide protection.

[0115] Thus, a passivation layer is formed on the surface of the mating head 21 to avoid the problem of tin melting due to tin plating when the wire harness structure 20 and the housing 10 are injection molded.

[0116] Please refer to Figure 3 In some embodiments, the housing 10 includes a top cover 11 and a base 12 that surrounds the top cover 11 to form an accommodating space;

[0117] The wiring harness structure 20 includes a sampling line, which includes at least two connectors 21 and a connection 22 connected to each connector 21. Some connectors 21 of the sampling line are connected to the connection positions of the electrical components 30, and the remaining connectors 21 of the sampling line are connected to the connection positions of the battery management main control board 40.

[0118] Understandably, in order to install the electrical components 30 and / or the battery management main control board 40, the housing 10 is split into a top cover 11 and a base 12 that is adapted and connected to the top cover 11. The base 12 is the base of the housing 10, used to support the electrical components 30 and the battery management main control board 40, while the top cover 11 is a cover-like structural component that fits onto the base 12 to form an accommodating space. Regarding the installation of the wiring harness structure 20, the wiring harness structure 20 can be optionally housed in the top cover 11, the base 12, or both.

[0119] The sampling line is a wire harness used to collect low-voltage and high-voltage signals from the electrical component 30. Therefore, one part of the sampling line connector 21 is connected to the connection position of the electrical component 30, while the remaining connector 21 is connected to the connection position 22 of the battery management main control board 40.

[0120] In this way, by connecting a portion of each connector 21 of the sampling line to the corresponding connection position of the electrical component 30, and connecting the remaining connector 21 to the corresponding connection position of the battery management main control board 40, the efficiency of connecting the sampling line to each electrical component 30 and the battery management main control board 40 is improved.

[0121] Please refer to Figure 3 In some embodiments, the housing 10 includes a locking attachment 13, the top cover 11 is connected to the base 12 via the locking attachment 13; and the locking position of the locking attachment 13 on the top cover 11 coincides with the position of each connector 21 on the top cover 11.

[0122] Understandably, the locking accessory 13 is a locking structure such as screws and bolts that connects the top cover 11 and the base 12. That is, the locking accessory 13 is sequentially inserted into the top cover 11 and the base 12 to connect the two.

[0123] When the locking position of the locking attachment 13 on the top cover 11 coincides with the position of each connector 21 on the top cover 11, a single locking action can be achieved, satisfying two actions: connecting the top cover 11 and the base 12, and fixing the connector 21 to the top cover 11, thereby improving the assembly efficiency of the electronic control device 100.

[0124] In this way, during the process of locking the top cover 11 and the base 12 together by locking the attachment 13, the top cover 11 and the base 12 are also assembled together, and the connection points of the sampling line and the electrical components 30 and the battery management main control board 40 are connected, thereby simplifying the assembly process, reducing manufacturing costs, and improving the assembly efficiency of the electronic control device 100.

[0125] Please refer to Figures 3 to 8 In one specific embodiment, the electronic control device 100 includes a housing 10, electrical components 30, a battery management main control board 40, and a wiring harness structure 20.

[0126] The outer casing 10 includes a top cover 11 and a base 12 that surrounds the top cover 11 to form an accommodating space. The wiring harness structure 20 includes a sampling line, which includes at least two connectors 21 and a connecting portion 22 connected to each connector 21; wherein the wiring harness structure 20 is at least partially bonded to the inner wall of the top cover.

[0127] The wire harness structure 20 includes a conductor body with a film layer 52 on it. The conductor body is hot-pressed onto the inner wall of the outer casing 10 through the film layer 52. The top cover 11 has a positioning hole 11a for accommodating a positioning structure that positions the connecting portion 22 and / or the connector portion 21. At least one connector portion 21 is welded to the connecting portion 22. The welding connection can be ultrasonic welding or resistance welding. The connecting portion 22 has a flat connecting end 22a connected to the connector portion 21. A passivation layer is formed on the surface of the connector portion 21 to prevent tin melting during injection molding of the wire harness structure 20 and the outer casing 10.

[0128] The housing 10 also includes a locking attachment 13, and the top cover 11 is connected to the base 12 via the locking attachment 13; and the locking position of the locking attachment 13 on the top cover 11 coincides with the position of each connector 21 on the top cover 11. When the locking position of the locking attachment 13 on the top cover 11 coincides with the position of each connector 21 on the top cover 11, a locking action can be realized, satisfying the two actions of connecting the top cover 11 and the base 12, and fixing the connector 21 to the top cover 11, thereby improving the assembly efficiency of the electronic control device 100.

[0129] Reference Figure 2 As shown in the illustration, this application provides a battery device 1001, which includes one or more battery cell components 200. The battery device 1001 disclosed in this application can be used in electrical devices that use the battery device 1001 as a power source or in various energy storage devices and systems that use the battery device 1001 as an energy storage element. Electrical devices can be, but are not limited to, mobile phones, portable devices, laptops, electric toys, power tools, electric vehicles, vehicles, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric boat toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0130] In some embodiments, the battery cell assembly 200 is typically formed by arranging a plurality of battery cells.

[0131] As an example, the battery cell assembly 200 can be a battery module, which is composed of multiple battery cells arranged and fixed to form an independent module.

[0132] In some embodiments, the battery device 1001 may be a battery pack, which includes a housing 300 and one or more battery cell assemblies 200, the battery cell assemblies 200 being housed in the housing 300.

[0133] As an example, the battery cell assembly 200 can be a battery module, and the battery cell assembly 200 can be housed in the housing 300 by fixing the battery module in the housing 300.

[0134] As an example, the battery cell assembly 200 can also be housed in the housing 300 by directly fixing multiple battery cells to the housing 300.

[0135] As an example, the housing 300 may include a first sub-housing 300 and a second sub-housing 300. The first sub-housing 300 and the second sub-housing 300 are fastened together to form a closed space inside the housing 300 to house the battery cell assembly 200. Here, "closed" refers to covering or closing, which can be sealed or unsealed. The first sub-housing 300 may be a top cover or a bottom plate.

[0136] As an example, the housing 300 may include a top cover, a frame, and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that the interior of the housing 300 forms an enclosed space to house the battery cell assembly 200.

[0137] For ease of explanation, the following embodiments will be described using a vehicle 1000 as an example of an electrical device according to an embodiment of this application.

[0138] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery device 1001 is disposed inside the vehicle 1000, and the battery device 1001 can be located at the bottom, front, or rear of the vehicle 1000. The battery device 1001 can be used to power the vehicle 1000; for example, the battery device 1001 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller and a motor. The controller is used to control the battery device 1001 to supply power to the motor, for example, to meet the power needs of the vehicle 1000 during starting, navigation, and driving.

[0139] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electronic control device, characterized in that, include: An outer casing having a receiving space; An electrical component is disposed within the accommodating space, and a plate is provided on the electrical component; Battery management main control board, and, A wiring harness structure, one end of which is connected to the battery plate, and the other end of which is connected to the battery management main control board; The wire harness structure is at least partially attached to the inner wall of the outer casing; An adhesive layer is provided on the wire harness structure and / or the inner wall of the housing, and the wire harness structure is connected to the inner wall of the housing through the adhesive layer.

2. The electronic control device according to claim 1, characterized in that: The wire harness structure includes a conductor body with a film layer on it, and the conductor body is formed on the inner wall of the outer shell by hot pressing the film layer.

3. The electronic control device according to claim 2, characterized in that: The outer casing is provided with a positioning hole, which is used to accommodate a positioning structure that positions the conductor body.

4. The electronic control device according to claim 2, characterized in that: The outer casing has a receiving groove, and at least a portion of the wire harness structure is received within the receiving groove.

5. The electronic control device according to claim 4, characterized in that: The housing includes a limiting structure for limiting the wire harness structure within the receiving groove.

6. The electronic control device according to claim 5, characterized in that: The limiting structure includes a colloid filled within the receiving groove; or... The limiting structure includes a snap fastener disposed within the receiving groove and used to engage with the wire harness structure.

7. The electronic control device according to claim 1, characterized in that: The wiring harness structure includes at least two connectors and a connecting portion connected to each of the connectors, with at least a portion of the connecting portion abutting the inner wall of the housing; Wherein, at least one of the joint portions is welded to the connecting portion; or... At least one of the connector portions is threadedly connected to the connecting portion; or... At least one of the joint portions is integrally formed with the connecting portion.

8. The electronic control device according to claim 7, characterized in that: The connecting part has a flat connecting end, which is connected to the connector part.

9. The electronic control device according to claim 7, characterized in that: A passivation layer is formed on the surface of the connector.

10. The electronic control device according to claim 7, characterized in that: The outer casing includes a top cover and a base that surrounds the top cover to form an accommodating space; The wiring harness structure includes a sampling line, which includes at least two connectors and a connection portion connected to each connector. Some of the connectors of the sampling line are connected to the connection positions of the electrical components, and the remaining connectors of the sampling line are connected to the connection positions of the battery management main control board.

11. The electronic control device according to claim 10, characterized in that: The housing includes a locking attachment, the top cover is connected to the base via the locking attachment; and the locking position of the locking attachment on the top cover coincides with the position of the corresponding connector on the top cover.

12. A battery device, characterized in that: It includes the electronic control device and battery cell assembly as described in any one of claims 1 to 11, wherein the battery cell assembly is electrically connected to the electronic control device.

13. An electrical device, characterized in that: Includes the battery device as described in claim 12, the battery device being used to store or provide electrical energy.

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