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 a power utilization device, the electric control device comprises a base assembly and a battery management main control board, the battery management main control board is arranged on the base assembly, a low-voltage control connector is integrated on the battery management main control board, and the low-voltage control connector is connected with the base assembly. The low-voltage control connector is used for being electrically connected with the battery device. According to the electric control device provided by the invention, the battery monomer monitoring circuit board is arranged on the base assembly, so that the overall integration level is higher, the arrangement of each device tends to be compact, the occupied space in the battery device is smaller, and a larger space can be provided for the battery monomer assembly. And meanwhile, the low-voltage control connector is integrated on the battery management main control board, so that the use of wire harnesses can be further reduced, and the capacity of the battery device is further improved.

Description

[0001] This application incorporates, in its entirety, International Patent Application No. PCT / CN2024 / 131851, filed on November 13, 2024, entitled “Electrical Control Device, Battery Device and Electrical Device”. Technical Field

[0002] This utility model relates to the field of battery device technology, and in particular to an electronic control device, a battery device, and an electrical device. Background Technology

[0003] 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 main control unit, namely the battery management unit (BMU), which includes data acquisition circuits, sensors, and a microcontroller (MCU) to process the acquired data and communicate with other systems in the vehicle.

[0004] However, in related products, the electrical components, electrical connections, sampling components, and connectors in the high-voltage power distribution equipment are scattered or integrated into a single housing. The BMU, on the other hand, integrates the functional module circuits via a PCB board, then installs them into another housing, and then into a third housing. Furthermore, all three are installed in the battery unit, where they communicate via low-voltage wiring harnesses and low-voltage control connectors. This results in a significant space occupation for the battery unit, thus affecting its energy storage capacity. Utility Model Content

[0005] The purpose of this invention is to provide an electronic control device, a battery device, and an electrical device, aiming to improve the problem of low heat exchange efficiency of high-voltage relays in electronic control devices.

[0006] The technical solution adopted in the embodiments of this application is:

[0007] In a first aspect, this application provides an electronic control device, comprising:

[0008] Base assembly; and,

[0009] A battery management main control board is mounted on the base assembly. The battery management main control board integrates a low-voltage control connector for electrical connection with the battery device.

[0010] The beneficial effects of the embodiments of this application are as follows: The electronic control device provided in this application places the battery cell monitoring circuit board on the base assembly, resulting in higher overall integration and a more compact arrangement of various components. This reduces the space occupied within the battery device, providing more space for the battery cell assembly. Simultaneously, integrating the low-voltage control connector onto the battery management main control board further reduces the use of wiring harnesses, thereby increasing the capacity of the battery device.

[0011] In some embodiments, the base assembly has a peripheral side surface and a top surface connected to the peripheral side surface, and the battery management main control board is disposed on the peripheral side surface; or, the battery management main control board is disposed on the top surface.

[0012] By adopting the above technical solution, a battery management control board can be installed on the periphery or top surface of the base assembly according to specific usage requirements, so as to adapt to different installation needs.

[0013] In some embodiments, when the battery management main control board is connected to the top surface, the low-voltage control connector is located on the peripheral side surface, and the insertion direction of the low-voltage control connector is perpendicular to the plane containing the peripheral side surface; or,

[0014] When the battery management main control board is connected to the peripheral side, the low-voltage control connector is located on the peripheral side, and the insertion direction of the low-voltage control connector is perpendicular to the plane of the peripheral side.

[0015] By adopting the above technical solution, the insertion direction of the low-voltage control connector, that is, the insertion direction with the battery device, is always perpendicular to the peripheral side of the base assembly to meet the insertion requirements.

[0016] In some embodiments, the base assembly is provided with a plurality of locking parts, and the battery management main control board is provided with locking mating parts adapted to each of the locking parts.

[0017] By adopting the above technical solution, the locking part and the locking mating part are connected to fix the battery management main control board on the base assembly.

[0018] In some embodiments, the locking portion is a mounting post formed on the base assembly, and the locking mating portion is a mounting hole formed on the battery management main control board.

[0019] By adopting the above technical solution, specifically, fasteners such as screws and pins are inserted through the mounting holes and connected to the mounting posts to fix the battery management main control board to the base assembly.

[0020] In some embodiments, the low-voltage control connector is soldered to the battery management main control board; or...

[0021] The low-voltage control connector is threadedly connected to the battery management main control board; or...

[0022] The low-voltage control connector is plugged into the battery management main control board.

[0023] By adopting the above technical solution, the low-voltage control connector can be electrically connected to the battery management main control board according to actual usage requirements.

[0024] In some embodiments, the base assembly is provided with a support structure for supporting the low-voltage control connector.

[0025] By adopting the above technical solution, the support structure is used to provide support for the low-voltage control connector, thereby improving the stability of the low-voltage control connector during the mating process.

[0026] In some embodiments, the support structure is a first receiving groove formed on the base assembly.

[0027] By adopting the above technical solution, the low-voltage control connector is placed in the first receiving groove to limit and fix it.

[0028] In some embodiments, the electronic control device further includes a protective cover, which is disposed on the battery management main control board and connected to the base assembly.

[0029] By adopting the above technical solution, the exposed parts of the battery management main control board are protected by a protective cover, thereby improving the reliability of the battery management main control board during use.

[0030] In some embodiments, a second receiving groove is formed on the protective cover, the second receiving groove and the first receiving groove enclose a receiving space, and the low-voltage control connector is placed in the second receiving groove.

[0031] By adopting the above technical solution, when the protective cover is placed on the battery management main control board, the second accommodating groove and the first accommodating groove enclose and form an accommodating space to protect the low-voltage control connector and simultaneously limit its movement.

[0032] Secondly, this application provides a battery device, including the aforementioned electronic control device and battery cell assembly, wherein the battery cell assembly and electronic control device are electrically connected.

[0033] Thirdly, this application provides an electrical device, including a battery device as described in any of the above, the battery device being used to store or provide electrical energy.

[0034] 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

[0035] 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.

[0036] Figure 1 This is a schematic diagram of the vehicle structure provided in an embodiment of this application;

[0037] Figure 2 An exploded view of the battery device provided in the embodiments of this application;

[0038] Figure 3 An exploded view of the electronic control device provided in the embodiments of this application;

[0039] Figure 4 This is a schematic diagram of the structure of the electronic control device provided in the embodiments of this application;

[0040] Figure 5 A schematic diagram of the structure of the electronic control device provided in the embodiment of this application after removing the protective cover;

[0041] Figure 6 This is a schematic diagram of the battery management main control board of the electronic control device provided in the embodiments of this application.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1000, Vehicle; 100, Electronic control device; 1001, Battery device; 200, Battery cell assembly; 300, Housing;

[0044] 10. Base assembly; 10a. Peripheral side surface; 10b. Top surface; 10c. Locking part; 10d. Support structure;

[0045] 20. Battery management main control board; 21. Low-voltage control connector; 20a. Locking mating part;

[0046] 30. Protective cover; 30a. Second receiving groove. Detailed Implementation

[0047] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0049] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0050] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0051] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0052] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0053] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 the embodiments of this application and simplifying the description, and are not intended to 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 the embodiments of this application.

[0054] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0055] A battery apparatus may include one or more battery cell assemblies to provide voltage and capacity. A battery cell assembly may include multiple battery cells connected in series, parallel, or mixed connections via busbars. The battery apparatus also includes a high-voltage distribution unit (BDU) and a battery management system (BMS). The high-voltage distribution unit primarily controls the smooth operation of the battery apparatus's charging and discharging circuits, while the battery management system is responsible for intelligent management and maintenance of the battery system, monitoring battery status, and ensuring safe battery operation. A battery apparatus may be a battery pack, which typically includes a housing and one or more battery cell assemblies housed within the housing. Power from the battery cell assemblies is transmitted to the high-voltage distribution unit, and then to the electrical equipment. The voltage, current, and temperature parameters of the battery cell assemblies are collected and monitored by the battery management system, which controls the on / off state of the circuits in the high-voltage distribution unit, thereby controlling the power transmission from the battery cell assemblies to the electrical equipment's battery management system.

[0056] In battery devices, the high-voltage power distribution unit primarily controls the smooth operation of the battery charging and discharging circuits. It is responsible for controlling the power-on / off process, pre-charging process, and charging process of the high-voltage electrical circuit. The high-voltage power distribution unit includes various electrical components, electrical connectors that realize circuit connections, sampling components for collecting circuit signals, and connectors for transmitting electrical signals. For example, electrical components include high-voltage relays, shunts, pre-charge relays, pre-charge resistors, and fuses; electrical connectors include copper busbars, aluminum busbars, and wire harnesses; sampling components include low-voltage sampling lines and sampling terminals; and connectors include low-voltage connectors and high-voltage connectors.

[0057] 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.

[0058] However, in the high-voltage power distribution equipment of related products, electrical components, electrical connections, sampling components, and connectors are either scattered or integrated into one housing. The BMU integrates its functional module circuits via a PCB board and then installs them into another housing. Similarly, the CSC integrates its own functional module circuits via a PCB board and then installs them into a third housing. Furthermore, all three are installed in the battery unit, where they communicate via low-voltage wiring harnesses and low-voltage control connectors. This results in a significant space occupation for the battery unit, thus affecting its energy storage capacity.

[0059] In view of this, embodiments of this application provide an electronic control device that integrates at least a portion of a high-voltage power distribution device and a battery management system. After removing the shell from the PCB board of the battery management system, it is integrated onto the base assembly. In this way, the overall integration of the electronic control device is higher, and the arrangement of various electrical components is more compact. At the same time, the low-voltage control connector is also integrated onto the main control board of the battery management system, which can further reduce the use of wiring harnesses. Thus, the electronic control device occupies less space within the battery device, providing more space for individual battery cells and thereby increasing the capacity of the battery device.

[0060] Please refer to Figures 2 to 6 This application provides an electronic control device 100, including a base assembly 10 and a battery management main control board 20. The battery management main control board 20 is disposed on the base assembly 10, and a low-voltage control connector 21 is integrated on the battery management main control board 20. The low-voltage control connector 21 is used for electrical connection with the battery device.

[0061] Understandably, the base assembly 10 is the main part of the electronic control device 100, used to support and fix the various components; that is, the base assembly 10 is a load-bearing structure.

[0062] The battery management main control board 20 is the main component in the battery management system. Here, the battery management main board 30 can be the circuit board of the BMU or the circuit board after the BMU circuit and the CSC circuit are integrated. The battery management system should have a corresponding protective shell to protect the internal components such as the battery management main control board 20. Therefore, by removing the protective shell and placing the battery management main control board 20 on the base assembly 10, the space occupied by the protective shell can be saved. That is, the various components in the battery management system and the high-voltage power distribution device are all positioned according to the support carrier of the base assembly 10.

[0063] Here, placing the battery management main control board 20 on the base assembly 10 can mean that the battery management main control board 20 is directly placed on the base assembly 10, for example, by connecting the two through corresponding connection structures, such as screws, rivets, and snap-fit ​​structures; or, it can mean that the battery management main control board 20 is placed on the base assembly 10 through an intermediate structure, for example, the intermediate structure can be a bracket, a fixing plate, etc., that is, the battery management main control board 20 can also be indirectly placed on the base assembly 10.

[0064] The low-voltage control connector 21 is used to realize data transmission, control signal transmission, protection functions, and power supply. It transmits the status information of each battery cell group in the battery device, such as voltage, temperature, and current, to the battery management main control board 20. It can also transmit control signals from the battery management main control board 20, such as charging or discharging commands and activation of protection measures. It can also send corresponding protection signals to the battery cell group through the low-voltage control connector 21. The low-voltage control connector 21 can also provide the low-voltage power required for the operation of the battery management main control board 20.

[0065] The integration of the low-voltage control connector 21 with the battery management main control board 20 should reduce or eliminate the use of electrical connectors such as wire harnesses, plugs or sockets for connection. Instead, the terminals of the low-voltage connection control should be directly electrically connected to the battery management main control board 20 through welding, threaded connection, and plug-in connection.

[0066] Thus, the electronic control device 100 provided in this application places the battery cell monitoring circuit board on the base assembly 10, resulting in higher overall integration and a more compact arrangement of components. This reduces the space occupied within the battery device, providing more space for the battery cell assembly. Simultaneously, integrating the low-voltage control connector 21 onto the battery management main control board 20 further reduces the use of wiring harnesses, thereby increasing the capacity of the battery device.

[0067] Please refer to Figure 4 and Figure 5In some embodiments, the base assembly 10 has a peripheral side surface 10a and a top surface 10b connected to the peripheral side surface 10a, and the battery management main control board 20 is disposed on the peripheral side surface 10a; or, the battery management main control board 20 is disposed on the top surface 10b.

[0068] Understandably, the base assembly 10 may be a cubic structure or a similar cubic structure, therefore, as Figure 3 As shown, in the XYZ spatial coordinate system, the X-axis direction is the width direction of the base assembly 10, the Y-axis direction is the length direction of the base assembly 10, and the Z-axis direction is the height direction of the base assembly 10. Therefore, the end face of the base assembly 10 refers to the top surface 10b or bottom surface (or, it can also be called the top or bottom) perpendicular to the Z-axis direction; the peripheral surface 10a of the base assembly 10 refers to the surface structure perpendicular to the XY plane.

[0069] Depending on the actual usage requirements, the battery management main control board 20 can be positioned on the top surface 10b or the peripheral side surface 10a. For example, when the battery management main control board 20 is positioned on the top surface 10b of the base assembly 10, the insertion direction of the low-voltage control connector 21 can be perpendicular to the plane of the peripheral side surface 10a. In this way, the insertion distance between the low-voltage control connector 21 and the battery device is shorter, and the connection reliability is higher. Alternatively, when the battery management main control board 20 is positioned on the peripheral side surface 10a of the base assembly 10, the insertion direction of the low-voltage control connector 21 is perpendicular to both the plane of the battery management main control board 20 and the plane of the peripheral side surface 10a. This reduces the impact of the insertion action on the strength of the connection between the low-voltage control connector 21 and the battery management main control board, resulting in high connection stability of the low-voltage control connector 21 on the battery management main control board 20.

[0070] Please refer to Figure 4 and Figure 5 In some embodiments, when the battery management main control board 20 is connected to the top surface 10b, the low-voltage control connector 21 is located on the peripheral side surface 10a, and the insertion direction of the low-voltage control connector 21 is perpendicular to the plane of the peripheral side surface 10a; or,

[0071] When the battery management main control board 20 is connected to the peripheral side 10a, the low-voltage control connector is located on the peripheral side 10a, and the insertion direction of the low-voltage control connector 21 is perpendicular to the plane on which the peripheral side 10a is located.

[0072] Understandably, when the battery management main control board 20 is connected to the top surface 10b, the main body of the low-voltage control connector 21 is located on the peripheral side 10a of the base assembly 10. At this time, the extension direction of the terminals of the low-voltage control connector 21 is parallel to the plane where the battery management main control board 20 is located, which facilitates the connection between the terminals of the low-voltage control connector 21 and the battery management main control board 20 by welding or threading.

[0073] Alternatively, when the battery management main control board 20 is connected to the top surface 10b, the main body of the low-voltage control connector 21 is also located on the peripheral side 10a of the base assembly 10. In this case, the extension direction of the terminals of the low-voltage control connector 21 is perpendicular to the plane where the battery management main control board 20 is located, which facilitates the connection between the terminals of the low-voltage control connector 21 and the battery management main control board 20 by plugging.

[0074] Thus, the insertion direction of the low-voltage control connector 21, that is, the insertion direction of the battery device, is always perpendicular to the peripheral side surface 10a of the base assembly 10 to meet the insertion requirements.

[0075] Please refer to Figure 5 In some embodiments, the base assembly 10 is provided with a plurality of locking parts 10c, and the battery management main control board 20 is provided with a locking mating part 20a adapted to each locking part 10c.

[0076] Understandably, the locking part 10c and the locking mating part 20a are adapted to meet the connection requirements between the battery management main control board 20 and the base assembly 10. Here, the structural form of the locking part 10c includes, but is not limited to, a mounting post, a mounting boss, a retaining wall, a groove structure, and a hole structure, etc., and the structural form of the locking mating part 20a includes, but is not limited to, a hole structure, a groove structure, a protruding post, etc.

[0077] Here, the locking part 10c and the corresponding locking mating part 20a can be connected by means of threaded connection, plug-in connection, snap-fit ​​connection, etc.

[0078] For example, the locking part 10c is a mounting post formed on the base assembly 10, and a threaded hole is provided on the mounting post. The locking mating part 20a is a through hole formed on the battery management main control board 20. Fasteners such as screws and pins are inserted through the through hole and connected to the threaded hole on the mounting post to realize the connection between the battery management main control board 20 and the base assembly 10.

[0079] Thus, by using the locking part 10c to connect with the locking mating part 20a, the battery management main control board 20 is fixed on the base assembly 10.

[0080] Please refer to Figure 5 and Figure 6 In some embodiments, the locking part 10c is a mounting post formed on the base assembly 10, and the locking mating part 20a is a mounting hole formed on the battery management main control board 20.

[0081] Understandably, the mounting post protrudes from the surface of the base assembly 10, creating a certain gap between the battery management main control board 20 and the outer surface of the base assembly 10 to meet the corresponding space and heat dissipation requirements. The mounting post has threaded holes, allowing screws, pins, or other fasteners to be inserted through these holes and connected to the mounting post, thus achieving the connection between the battery management main control board 20 and the base assembly 10.

[0082] In some embodiments, the low-voltage control connector 21 is soldered to the battery management main control board 20; or...

[0083] The low-voltage control connector 21 is threaded to the battery management main control board 20; or,

[0084] The low-voltage control connector 21 is plugged into the battery management main control board 20.

[0085] Understandably, the terminals of the low-voltage control connector 21 should be directly connected to the battery management main control board 20. For example, pads are provided on the battery management main control board 20, and the terminals of the low-voltage control connector 21 are soldered to the pads; or, through holes are opened at the terminals of the low-voltage control connector 21, and through holes are also opened at the exposed copper area of ​​the battery management main control board 20, and the two are then connected by fasteners such as screws and pins; or, the terminals of the low-voltage control connector are male plug-in terminals, and female plug-in terminals are provided on the battery management main control board 20, and the two are electrically connected by plugging the male plug-in terminals with the female plug-in terminals.

[0086] Thus, the low-voltage control connector 21 can be electrically connected to the battery management main control board 20 according to actual usage requirements.

[0087] Please refer to Figure 3 and Figure 5 In some embodiments, the base assembly 10 is provided with a support structure 10d for supporting the low-voltage control connector 21.

[0088] Understandably, after the low-voltage control connector 21 is connected to the battery management main control board 20, it is still in a suspended state. Under the action of gravity, the load on the connection between the low-voltage control connector 21 and the battery management main control board 20 will increase, which will lead to the problem that the low-voltage control connector 21 is easy to separate from the battery management main control board 20.

[0089] To solve the above problems, a support structure 10d is added to the base assembly 10. The structure of the support structure 10d includes, but is not limited to, a bracket, a support plate, a support column, and a groove structure, so as to allow the low-voltage control connector 21 to be attached to the base assembly 10.

[0090] Thus, the support structure 10d provides support for the low-voltage control connector 21, thereby improving the stability of the low-voltage control connector 21 during the mating process.

[0091] Please refer to Figure 5 In some embodiments, the support structure 10d is a first receiving groove formed on the base assembly 10.

[0092] Understandably, the first receiving groove is a groove structure recessed on the base assembly 10. Specifically, the first receiving groove can be formed during the molding process of the base assembly 10. The groove shape of the first receiving groove is adapted to the outer contour of the low-voltage control connector 21 to improve the stability of the low-voltage control connector 21 in the first receiving groove.

[0093] Specifically, such as Figure 5 As shown, the first receiving groove has a top opening and a side opening. The top opening is for placing the low-voltage control connector 21, and the side opening is for exposing the plug end of the low-voltage control connector 21.

[0094] Thus, the low-voltage control connector 21 is placed in the first receiving groove to limit and fix it.

[0095] Please refer to Figure 3 and Figure 4 In some embodiments, the electronic control device 100 further includes a protective cover 30, which covers the battery management main control board 20 and is connected to the base assembly 10.

[0096] Understandably, the protective cover 30 serves to protect the exposed portion of the battery management main control board 20, reducing direct impact on the battery management main control board 20. Here, the shape of the protective cover 30 should be adapted to the shape of the battery management main control board 20 to completely cover it.

[0097] In this way, the exposed parts of the battery management main control board 20 are protected by the protective cover 30, thereby improving the reliability of the battery management main control board 20 during use.

[0098] Please refer to Figure 3 In some embodiments, a second receiving groove 30a is formed on the protective cover 30, and the second receiving groove 30a and the first receiving groove enclose a receiving space, and the low-voltage control connector 21 is placed in the second receiving groove 30a.

[0099] Understandably, the second receiving groove 30a is a groove structure recessed into the protective cover 30. During use, when the protective cover 30 is placed on the battery management main control board 20, the second receiving groove 30a can be enclosed with the first receiving groove to form a receiving space, further limiting the position and protecting the low-voltage control connector 21.

[0100] Thus, when the protective cover 30 is placed on the battery management main control board 20, the second receiving groove 30a and the first receiving groove enclose and form a receiving space to protect the low-voltage control connector 21 and also limit its movement.

[0101] In one specific embodiment, please refer to Figures 3 to 6 This application provides an electronic control device 100, including a base assembly 10, a battery management main control board 20, and a protective cover 30. The battery management main control board 20 is disposed on the base assembly 10 and integrates a low-voltage control connector 21 for electrical connection with the battery device. The protective cover 30 is disposed on the battery management main control board 20 and is connected to the base assembly 10.

[0102] The base assembly 10 has a top surface 10b, a battery management main control board 20 disposed on the top surface 10b, and a low-voltage control connector 21 located on the peripheral side surface 10a, wherein the insertion direction of the low-voltage control connector 21 is perpendicular to the plane of the peripheral side surface 10a.

[0103] The base assembly 10 is provided with multiple locking parts 10c, and the battery management main control board 20 is provided with locking mating parts 20a that are adapted to each locking part 10c. The locking part 10c is a mounting post formed on the base assembly 10, and the locking mating part 20a is a mounting hole formed on the battery management main control board 20.

[0104] The low-voltage control connector 21 is soldered to the battery management main control board 20. A support structure 10d is provided on the base assembly 10, and the support structure 10d is a first receiving groove formed on the base assembly 10. A second receiving groove 30a is formed on the protective cover 30, and the second receiving groove 30a and the first receiving groove enclose a receiving space, within which the low-voltage control connector 21 is placed.

[0105] Reference Figure 2 As shown, this application embodiment provides a battery device 1001, which includes one or more battery cell components 200. The battery device 1001 disclosed in this application embodiment 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.

[0106] In some embodiments, the battery cell assembly 200 is typically formed by arranging a plurality of battery cells.

[0107] 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.

[0108] In some embodiments, the battery device 1001 may be a battery pack, which includes a housing and one or more battery cell assemblies 200, the battery cell assemblies 200 being housed within the housing.

[0109] As an example, the battery cell assembly 200 can be a battery module, which can be housed in the housing 300 by fixing the battery module in the housing 300.

[0110] 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.

[0111] As an example, the housing 300 may include a first sub-housing and a second sub-housing. The first sub-housing and the second sub-housing 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, and can be either sealed or unsealed. The first sub-housing 300 may be a top cover or a bottom plate.

[0112] 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.

[0113] For ease of explanation, the following embodiments will be described using a vehicle as an example of an electrical device according to an embodiment of this application.

[0114] 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.

[0115] In some embodiments of this application, the battery device 1001 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0116] The above are merely preferred embodiments of this application, and only specifically describe the technical principles of this application. These descriptions are only for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application, as well as other specific embodiments of this application that can be conceived by those skilled in the art without creative effort, should be included within the scope of protection of this application.

Claims

1. An electronic control device, characterized in that, include: Base assembly; as well as, A battery management main control board is mounted on the base assembly. The battery management main control board integrates a low-voltage control connector for electrical connection with the battery device.

2. The electronic control device as described in claim 1, characterized in that, The base assembly has a side surface and a top surface connected to the side surface, and the battery management main control board is disposed on the side surface; or, The battery management control board is located on the top surface.

3. The electronic control device as described in claim 2, characterized in that, When the battery management main control board is connected to the top surface, the low-voltage control connector is located on the side surface, and the insertion direction of the low-voltage control connector is perpendicular to the plane of the side surface; or, When the battery management main control board is connected to the side, the low-voltage control connector is located on the side, and the insertion direction of the low-voltage control connector is perpendicular to the plane of the side.

4. The electronic control device as described in claim 1, characterized in that, The base assembly is provided with multiple locking parts, and the battery management main control board is provided with locking mating parts adapted to each of the locking parts.

5. The electronic control device as described in claim 4, characterized in that, The locking part is a mounting post formed on the base assembly, and the locking mating part is a mounting hole formed on the battery management main control board.

6. The electronic control device as described in claim 1, characterized in that, The low-voltage control connector is soldered to the battery management main control board; or... The low-voltage control connector is threadedly connected to the battery management main control board; or... The low-voltage control connector is plugged into the battery management main control board.

7. The electronic control device as described in claim 1, characterized in that, The base assembly is provided with a support structure for supporting the low-voltage control connector.

8. The electronic control device as described in claim 7, characterized in that, The support structure is a first receiving groove formed on the base assembly.

9. The electronic control device as described in claim 8, characterized in that, The electronic control device also includes a protective cover, which is disposed on the battery management main control board and connected to the base assembly.

10. The electronic control device as described in claim 9, characterized in that, A second receiving groove is formed on the protective cover, and the second receiving groove and the first receiving groove enclose each other to form a receiving space, and the low-voltage control connector is placed in the second receiving groove.

11. 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 10, wherein the battery cell assembly is electrically connected to the electronic control device.

12. An electrical appliance, characterized in that, Includes the battery device as described in claim 11, the battery device being used to store or provide electrical energy.

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