Connection device, battery management system, battery pack and vehicle

Abstract

A connection device, a battery management system, a battery pack and a vehicle. The connection device (10) comprises an insertion body (100) and a first limiting member (200), wherein the insertion body (100) is provided with a first side surface (110) and a second side surface (120) which are opposite each other, the first side surface (110) being configured to mount a first electronic module thereon, and the second side surface (120) being configured to mount a second electronic module thereon; the insertion body (100) is provided with at least one insertion through hole (130); and the first limiting member (200) is provided with at least two limiting portions (210), the limiting portions (210) being arranged in the insertion through hole (130), and the limiting portions (210) being configured to limit the movement of a terminal of the first electronic module. By means of the insertion through hole (130) being provided on the insertion body (100), the first limiting member (200) being arranged in the insertion through hole (130), and the terminal of the first electronic module being positioned and limited by the limiting portions (210) of the first limiting member (200), it is ensured that the terminal of the first electronic module is always at the correct position during an insertion process, such that the terminal of the second electronic module can be precisely positioned when being inserted into and matched with the terminal of the first electronic module, thereby ensuring smooth insertion.

Description

Connectivity devices, battery management system, battery pack, and vehicle

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese patent applications filed on March 25, 2025, with application number 202520533022.8 entitled "Plug-in limiting structure, battery management system, battery pack and vehicle" and Chinese patent application filed on March 25, 2025, with application number 202520527728.3 entitled "Grounding anti-rotation structure, battery management system, battery pack and vehicle", the contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of power battery technology, and in particular to a connection device, a battery management system, a battery pack, and a vehicle. Background Technology

[0004] The battery management system (BMS) in a battery pack mainly includes a battery disconnect unit (BDU) and a battery management unit (BMU). The BDU is mainly composed of components such as relays, resistors, and fuses, while the BMU is mainly composed of circuit boards with control functions. As the core components of the battery control system, the BDU and BMU play a very important safety role in the battery system. Summary of the Invention

[0005] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0006] In a first aspect, an embodiment of this disclosure provides a connection device, comprising:

[0007] The plug-in body has a first side and a second side opposite to each other. The first side is used to install a first electronic module, and the second side is used to install a second electronic module. The plug-in body has at least one plug-in through hole, which is configured to allow the terminals of the first electronic module to be exposed on the second side through the plug-in through hole.

[0008] The first limiting member has at least two limiting parts, which are disposed in the insertion through hole, and each limiting part is used to limit the movement of the terminals of the first electronic module.

[0009] In one possible implementation, the connecting device provided in this embodiment of the present disclosure has a guide portion provided on the side of the limiting portion facing the second side, the guide portion being used to guide the terminals of the second electronic module to be inserted into the terminals of the first electronic module.

[0010] In one possible implementation, the connecting device provided in this embodiment of the present disclosure has a guide portion that is a guide slope that is inclined from the second side toward the first side.

[0011] In one possible implementation, the connecting device provided in this embodiment of the present disclosure has a clamping part at one end of the limiting part away from the inner wall of the insertion through hole, and the clamping part is used to abut against the terminal of the first electronic module.

[0012] In one possible implementation, the connecting device provided in this embodiment of the present disclosure has a plurality of reinforcing segments on its second side.

[0013] In one possible implementation, the connecting device provided in this disclosure embodiment has a reinforcing section and a portion of the second side side enclosing at least one partition space;

[0014] The insertion through hole is located within the partition space.

[0015] In one possible implementation, the connecting device provided in this embodiment of the present disclosure has a limiting protrusion on its first side;

[0016] The limiting protrusion and part of the first side are arranged to form a mounting position for mounting the first electronic module;

[0017] The mounting position and the plug-in hole are set accordingly.

[0018] In one possible implementation, the connection device provided in this disclosure embodiment further includes:

[0019] The mounting base has a limit groove and is used to be mounted on the part to be grounded.

[0020] A conductive component has a main body and an extension connected to each other. The main body is disposed on a mounting base, and a portion of the extension is disposed in a limiting groove to restrict the conductive component from rotating relative to the mounting base.

[0021] A connector is inserted into the extension and is used to electrically connect the extension and the part to be grounded.

[0022] A connector, provided on the main body, is used to ground the conductive parts.

[0023] In one possible implementation, the connecting device provided in this disclosure includes an extension comprising a connecting segment and a bent segment connected together.

[0024] The connecting section is connected to the main body and is located in the limiting groove. The plug is inserted into the bending section.

[0025] In one possible implementation, the connecting device provided in this embodiment of the disclosure includes a bending segment comprising a first bending segment and a second bending segment connected to each other.

[0026] The first bending section is connected to the connecting section, and the plug is inserted into the second bending section. There is an angle between the first bending section and the second bending section.

[0027] In one possible implementation, the connecting device provided in this embodiment of the present disclosure has mounting holes on the second bent section;

[0028] The connector is inserted into the second bend section through the mounting hole.

[0029] In one possible implementation, the connecting device provided in this embodiment of the present disclosure further includes a second limiting member;

[0030] The second bending section is provided with a limiting hole, and the second limiting member is inserted into the second bending section through the limiting hole.

[0031] In one possible implementation, the connecting device provided in this embodiment of the present disclosure has a mounting slot on the mounting base and a first snap-fit ​​part in the mounting slot;

[0032] A limiting groove is provided on the inner wall of the mounting groove, and a second snap-fit ​​part is provided on the outer circumferential side of the main body. The first snap-fit ​​part and the second snap-fit ​​part are connected to each other so that the main body part is snapped into the mounting groove.

[0033] In one possible implementation, the connecting device provided in this embodiment of the present disclosure has a grounding hole on its main body;

[0034] The connector is inserted into the grounding hole.

[0035] Secondly, the present disclosure provides a battery management system including a BDU module, a BMU module, and the above-mentioned connection device;

[0036] The BDU module and BMU module are respectively mounted on the plug-in body of the connection device, and / or grounded through the connection device.

[0037] Thirdly, the present disclosure provides a battery pack including a battery pack body and the battery management system described above.

[0038] The battery management system is located on the battery pack itself.

[0039] Fourthly, an embodiment of this disclosure provides a vehicle including a vehicle body and the battery pack as described above, the battery pack being disposed on the vehicle body. Attached Figure Description

[0040] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the technical solutions of this disclosure, but do not constitute a limitation on the technical solutions of this disclosure.

[0041] Figure 1 is a schematic diagram of the connection device provided in an embodiment of this disclosure.

[0042] Figure 2 is an enlarged view of the area indicated by point A in Figure 1.

[0043] Figure 3 is a structural schematic diagram from another perspective of Figure 1.

[0044] Figure 4 is a partial structural schematic diagram of the battery pack provided in an embodiment of this disclosure.

[0045] Figure 5 shows the connection between the connecting device and the BDU module in Figure 4.

[0046] Figure 6 is an enlarged view of the area indicated by point B in Figure 5.

[0047] Figure 7 is another structural schematic diagram of the connecting device provided in an embodiment of this disclosure.

[0048] Figure 8 is a partial structural schematic diagram of the battery pack provided in an embodiment of this disclosure.

[0049] Figure 9 is a schematic diagram of a portion of the battery pack shown in Figure 8.

[0050] Figure 10 is a schematic diagram of another part of the battery pack in Figure 8.

[0051] Figure 11 is a partial structural diagram of the mounting base and BDU module provided in the embodiments of this disclosure.

[0052] Explanation of reference numerals in the attached figures:

[0053] 10. Connecting device;

[0054] 100. Connect the main body;

[0055] 110. First side view;

[0056] 111. Limiting protrusion;

[0057] 112. Installation position;

[0058] 120. Second side view;

[0059] 121. Strengthened Section;

[0060] 122. Dividing space;

[0061] 123. Positioning post;

[0062] 124. Mounting holes;

[0063] 130. Insertion through hole;

[0064] 200. First limiting component;

[0065] 210. Limiting part;

[0066] 211. Guiding section;

[0067] 212. Clamping part;

[0068] 220. Limiting space;

[0069] 20. Framework;

[0070] 30. BDU module;

[0071] 31. First terminal;

[0072] 40. BMU module;

[0073] 41. Second terminal;

[0074] 100′, Mounting base;

[0075] 110′, limiting groove;

[0076] 120′, mounting slot;

[0077] 130', First connecting part;

[0078] 200′, conductive component;

[0079] 210′, Main body;

[0080] 211′, Second connecting part;

[0081] 212′, Grounding hole;

[0082] 220′, extension;

[0083] 221′, Connecting segment;

[0084] 222′, bending section; 2221, first bending section; 2222, second bending section;

[0085] 223′, Mounting hole;

[0086] 224′, Limiting hole;

[0087] 300', Connector;

[0088] 400′, Connector;

[0089] 500′, Second limit component.

[0090] The accompanying drawings illustrate exemplary embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of this disclosure in any way, but rather to illustrate the technical solutions of this disclosure to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0091] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0092] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this disclosure.

[0093] The terms “first,” “second,” “third,” and “fourth,” etc. (if present), in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It is understood that such data can be interchanged where appropriate so that embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0094] In one alternative approach, when the relays in the BDU, the high-voltage sampling terminals of each part, and the terminals in the BMU are plugged in, the terminals may wobble, resulting in inaccurate connection between the terminals in the BDU and the terminals in the BMU.

[0095] This disclosure provides a connection device (e.g., a plug-in limiting structure) comprising a plug-in body and a first limiting member. The plug-in body has opposing first and second sides. The first side is used to mount a first electronic module, and the second side is used to mount a second electronic module. The plug-in body has at least one plug-in through-hole configured to allow terminals of the first electronic module to be exposed through the plug-in through-hole onto the second side. The first limiting member has at least two limiting portions disposed within the plug-in through-hole, each limiting portion restricting the movement of the terminals of the first electronic module. The connection device provided in this disclosure, by having a plug-in through-hole on the plug-in body and a first limiting member disposed within the plug-in through-hole, and by using the limiting portions of the first limiting member to position and limit the terminals of the first electronic module, ensures that the terminals of the first electronic module are always in the correct position during plugging, thereby enabling precise positioning of the terminals of the second electronic module during plugging and matching, and ensuring smooth plugging.

[0096] The following describes exemplary application scenarios of this disclosure.

[0097] The connection device provided in this disclosure can be applied to battery packs of new energy vehicles, such as battery packs of pure electric vehicles and battery packs of plug-in hybrid vehicles. Specifically, the connection device provided in this disclosure has a plug-in through hole on the plug-in body, and a first limiting member is provided in the plug-in through hole. Each limiting part of the first limiting member positions and restricts the terminals of the first electronic module to ensure smooth plugging.

[0098] The technical solutions of this disclosure will be described in detail below with reference to specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of this disclosure will now be described with reference to the accompanying drawings.

[0099] Referring to Figures 1 to 3, an embodiment of this disclosure provides a connection device 10 (e.g., a plug-in limiting structure), which includes a plug-in body 100 and a first limiting member 200.

[0100] The plug-in body 100 has a first side 110 and a second side 120 opposite to each other. The first side 110 is used to install a first electronic module, and the second side 120 is used to install a second electronic module. The plug-in body 100 has at least one plug-in through hole 130, which is configured to allow the terminals of the first electronic module to be exposed on the second side 120 through the plug-in through hole 130.

[0101] The first limiting member 200 has at least two limiting portions 210, which are disposed in the insertion through hole 130. Each limiting portion 210 is used to limit the movement of the terminals of the first electronic module.

[0102] It is understood that the connection device 10 provided in this embodiment can be used in the battery management system of a battery pack to accurately connect the terminals of the BDU module 30 and the BMU module 40. The first electronic module can be either the BDU module 30 or the BMU module 40, and the second electronic module can be the other; this embodiment does not impose excessive limitations on this. Below, this disclosure will be exemplarily described using the BDU module 30 as the first electronic module and the BMU module 40 as the second electronic module.

[0103] Referring to Figure 4, the battery pack includes a frame 20, within which are arranged a cell module, a BDU module 30, and a BMU module 40. Both the BDU module 30 and the BMU module 40 are electrically connected to the cell module. The BDU module 30 is mainly used to control the charging and discharging process of the cell module, while the BMU module 40 is mainly used to monitor parameters such as voltage and temperature of the cell module in real time. The BDU module 30 has a first terminal 31, and the BMU module 40 has a second terminal 41. The first terminal 31 and the second terminal 41 are plugged into each other to achieve electrical connection between the BDU module 30 and the BMU module 40.

[0104] Referring to Figures 1, 2, and 6, the plug-in body 100 can be disposed on the frame 20, the BDU module 30 can be installed on the first side 110 of the plug-in body 100, the BMU module 40 can be installed on the second side 120 of the plug-in body 100, and the first terminal 31 of the BDU module 30 can be exposed on the second side 120 through the plug-in through hole 130 to facilitate plugging with the second terminal 41 of the BMU module 40 located on the second side 120.

[0105] The insertion through-hole 130 is provided with a first limiting member 200. Each limiting part 210 of the first limiting member 200 surrounds a limiting space 220. The first terminal 31 can extend into the limiting space 220, and the limiting parts 210 restrict the first terminal 31 from shaking or moving, thus preventing the first terminal 31 from shifting, loosening, or even falling off due to vibration, external force, or other factors. Furthermore, it ensures that the first terminal 31 is always in the correct position during insertion, so that the second terminal 41 of the BMU module 40 can be accurately positioned with the first terminal 31 when inserted, ensuring smooth insertion and solving terminal stress problems and rework problems in the production and assembly process.

[0106] The connection device 10 provided in this embodiment of the present disclosure provides a first limiting member 200 by opening a plug-in through hole 130 on the plug-in body 100 and setting a limiting part 210 in the plug-in through hole 130 to restrict the movement of the first electronic module by limiting part 210 of the first limiting member 200, so as to ensure that the terminals of the first electronic module are always in the correct position during the plugging process, so that the terminals of the second electronic module can be accurately positioned when plugging and matching, and to ensure smooth plugging.

[0107] It is understood that at least one through-hole 130 is provided. The number of through-holes 130 can be one or more, as long as they can match the number of terminals between the BDU module 30 and the BMU module 40. This disclosure does not impose too many restrictions on this.

[0108] It is understood that there are at least two limiting parts 210, and the number of limiting parts 210 can be two, three, four or more, as long as each limiting part 210 can form a limiting space 220. This embodiment does not impose too many restrictions on this.

[0109] For example, the shape of the limiting space 220 can be rectangular, circular, elliptical, square, etc., as long as it can be adapted to the shape of the first terminal 31 of the BDU module 30. This embodiment does not impose too many restrictions on this.

[0110] Referring to Figures 1 and 2, in some embodiments, a guide portion 211 is provided on the side of the limiting portion 210 facing the second side 120. The guide portion 211 is used to guide the terminals of the second electronic module to be inserted into the terminals of the first electronic module.

[0111] In the above embodiment, the guide portion 211 is mainly used to guide the second terminal 41 of the BMU module 40 to be inserted into the first terminal 31 of the BDU module 30, thereby ensuring the accuracy of the insertion and matching.

[0112] Referring to Figures 1 and 3, in some specific embodiments, the guide portion 211 is a guide slope that is inclined from the second side surface 120 toward the first side surface 110.

[0113] In the above embodiment, the guide slope has a preset gap, which can avoid the second terminal 41 of the BMU module 40 during insertion, prevent the second terminal 41 from directly colliding with the limiting part 210, and avoid damaging the second terminal 41.

[0114] Furthermore, the guide slope can guide the second terminal 41 to be smoothly inserted into the first terminal 31 of the BDU module 30 without being obstructed by the limiting part 210, thereby preventing interference with the insertion process.

[0115] Referring to Figures 1 and 3, in some embodiments, a clamping part 212 is provided at one end of the limiting part 210 away from the inner wall of the insertion through hole 130, and the clamping part 212 is used to abut against the terminal of the first electronic module.

[0116] In the above embodiment, the clamping part 212 is mainly used to abut against the first terminal 31 of the BDU module 30 to restrict the movement of the first terminal 31 during the insertion process.

[0117] Referring to Figures 2 and 6, a guide radius may be provided on the side of the clamping part 212 facing the first side 110 so that the first terminal 31 can smoothly enter the limiting space 220 through the guide radius and reduce interference.

[0118] Referring to Figures 1, 2 and 5, in some embodiments, the second side 120 is provided with a plurality of reinforcing segments 121.

[0119] In the above embodiments, the reinforcement section 121 can provide additional support, thereby enhancing the stability of the plug-in body 100 structure and reducing the deformation or damage of the plug-in body 100 due to external forces during use.

[0120] For example, the shape of the reinforcing segment 121 can be a strip, an S-shape, a wave shape, etc., and this embodiment does not impose too many restrictions on it.

[0121] Referring to Figures 1, 2 and 6, in some specific embodiments, the reinforcing segment 121 and a portion of the second side 120 enclose at least one partition space 122.

[0122] The insertion through hole 130 is located within the partition space 122.

[0123] In the above embodiment, a partition space 122 is formed by the reinforcing section 121 and the second side surface 120, and the insertion through hole 130 is located within the partition space 122. This arrangement can play a certain positioning and guiding role. When the second terminal 41 of the BMU module 40 is inserted, the corresponding partition space 122 can be found so that the second terminal 41 and the first terminal 31 can be quickly inserted, thereby improving the insertion efficiency.

[0124] Referring to Figures 1 and 5, the number of plug-in through holes 130 and the number of partition spaces 122 can both be multiple. Each plug-in through hole 130 is arranged in a corresponding partition space 122. This can separate different plug-in through holes 130, thereby avoiding misconnection of different terminals in BDU module 30 and BMU module 40.

[0125] Furthermore, the separation space 122 can also prevent interference between different terminals. This is especially important for complex battery management systems such as BDU module 30 and BMU module 40, where multiple terminals may involve electrical connections for different functions, such as power, signal, and ground. The separation space 122 can prevent electrical interference or short circuits between different terminals.

[0126] For example, the shape of the partition space 122 can be square, circular, elliptical, rhomboid, etc., and this embodiment does not impose too many restrictions on it.

[0127] Referring to FIG3, in some embodiments, the first side surface 110 is provided with a limiting protrusion 111.

[0128] The limiting protrusion 111 and part of the first side 110 surround to form a mounting position 112 for mounting the first electronic module.

[0129] Mounting position 112 is set to correspond to the insertion through hole 130.

[0130] In the above embodiment, the mounting position 112 is formed by the limiting protrusion 111 and part of the first side 110. The shape of the mounting position 112 can match the relevant components in the BDU module 30, thereby playing the role of installation limiting and preventing displacement or loosening due to vibration, external force or improper operation, thereby improving the stability and reliability of the system.

[0131] Furthermore, the mounting position 112 is correspondingly set with the insertion through hole 130, so that after the relevant components in the BDU module 30 are installed on the mounting position 112, their first terminal 31 can be accurately inserted into the insertion through hole 130.

[0132] Referring to Figures 1 and 5, in some embodiments, the second side 120 is provided with a positioning post 123.

[0133] Positioning post 123 is used for positioning and installing the second electronic module.

[0134] In the above embodiment, the BMU module 40 may be provided with a positioning hole. When the second terminal 41 of the BMU module 40 is inserted into the first terminal 31 of the BDU module 30, the positioning post 123 guides and restricts the mounting position 112 of the BMU module 40 to ensure that the BMU module 40 can be correctly placed into the predetermined mounting position 112, so that the second terminal 41 and the first terminal 31 can be smoothly inserted.

[0135] Referring to Figures 1 and 5, in some embodiments, mounting holes 124 may also be provided on the second side 120.

[0136] The BDU module 30 can be installed onto the second side 120 of the plug-in body 100 via mounting holes 124 using fasteners such as bolts.

[0137] Referring to Figures 4 to 6, an embodiment of the present disclosure provides a battery management system including a BDU module 30, a BMU module 40, and the above-mentioned connection device (e.g., a plug-in limiting structure 10).

[0138] BDU module 30 and BMU module 40 are respectively disposed on the plug-in body 100 of the connecting device.

[0139] In this embodiment of the present disclosure, since the battery management system adopts the connection device 10 in the above embodiment, it also has the advantages and benefits brought by the connection device 10. That is, by opening a plug-in through hole 130 on the plug-in body 100, and providing a first limiting member 200 in the plug-in through hole 130, each limiting part 210 of the first limiting member 200 positions and restricts the terminals of the BDU module 30 to ensure smooth plugging.

[0140] Referring to Figures 4 to 6, an embodiment of this disclosure provides a battery pack, including a battery pack body and the battery management system described above.

[0141] The battery management system is located on the battery pack itself.

[0142] In the above structural configuration, since the battery pack adopts the battery management system in the above embodiment, it also has the advantages and benefits brought by the above battery pack, which will not be elaborated further here.

[0143] The battery pack body may include a frame 20 and a cell module, a BDU module 30 and a BMU module 40 disposed within the frame 20. Both the BDU module 30 and the BMU module 40 are electrically connected to the cell module. The BDU module 30 is mainly used to control the charging and discharging process of the cell module, and the BMU module 40 is mainly used to monitor the voltage, temperature and other parameters of the cell module in real time.

[0144] This disclosure provides a vehicle including a vehicle body and a battery pack as described above, the battery pack being disposed on the vehicle body.

[0145] In the above structural configuration, since the vehicle uses the battery pack in the above embodiment, it also has the advantages and benefits brought by the battery pack, which will not be elaborated further here.

[0146] In one alternative method, the BDU and BMU are connected via a wiring harness grounding method. However, due to poor grounding and other reasons, there may be problems with electromagnetic compatibility (EMC).

[0147] This disclosure provides a connection device (e.g., a grounding anti-rotation structure) including a mounting base, a conductive element, a plug-in, and a connector. The mounting base has a limiting groove and is used to mount the component to be grounded. The conductive element has a connected main body and an extension. The main body is mounted on the mounting base, and a portion of the extension is disposed within the limiting groove to restrict rotation of the conductive element relative to the mounting base. The plug-in is inserted into the extension and is used to electrically connect the extension and the component to be grounded. The connector is disposed on the main body for grounding connection. By using the main body and extension of the conductive element instead of a wire harness grounding method, the grounding area can be increased, improving electromagnetic compatibility; and the limiting groove of the mounting base can also restrict the rotation of the conductive element to maintain the grounding effect.

[0148] The following describes another exemplary application scenario of this disclosure.

[0149] As described above, the connection device provided in this disclosure can be applied to battery packs of new energy vehicles, such as battery packs of pure electric vehicles and battery packs of plug-in hybrid vehicles. Specifically, the connection device provided in this disclosure increases the grounding area and improves electromagnetic compatibility by replacing the wire harness grounding method with the main body and extension of the conductive component.

[0150] The technical solutions of this disclosure will be described in detail below with reference to specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of this disclosure will now be described with reference to the accompanying drawings.

[0151] Referring to Figures 7 and 11, an embodiment of this disclosure provides a connection device (e.g., a grounding anti-rotation structure) including a mounting base 100', a conductive element 200', a plug-in element 300', and a connector 400'.

[0152] Mounting base 100′ is provided with a limiting groove 110′, and mounting base 100′ is used to be mounted on the part to be grounded.

[0153] The conductive element 200' has a main body portion 210' and an extension portion 220' connected to each other. The main body portion 210' is disposed on the mounting base 100', and a portion of the extension portion 220' is disposed in the limiting groove 110' to restrict the conductive element 200' from rotating relative to the mounting base 100'.

[0154] The connector 300' is inserted into the extension 220' and electrically connects the extension 220' and the grounding component.

[0155] A connector 400' is provided on the main body 210' for grounding the conductive element 200'.

[0156] It is understood that the connection device provided in this embodiment can be used in a battery pack, and the component to be grounded can be a battery management system, which includes a BDU module 30 and a BMU module 40. The battery pack includes a frame 20, within which cell modules, the BDU module 30, and the BMU module 40 are disposed. Both the BDU module 30 and the BMU module 40 are electrically connected to the cell modules. The BDU module 30 is mainly used to control the charging and discharging process of the cell modules, while the BMU module 40 is mainly used to monitor the voltage, temperature, and other parameters of the cell modules in real time.

[0157] Referring to Figures 7, 8, and 11, the mounting base 100' can be disposed on the housing of the BDU module 30. The main body 210' of the conductive element 200' is disposed on the mounting base 100'. The extension 220' of the conductive element 200' extends outward from the main body 210' and connects the BMU module 40 and the BDU module 30 through the connector 300'. Then, the main body 210' and the battery pack frame 20 are connected through the connector 400' to achieve grounding connection.

[0158] By replacing the wire harness grounding method with the main body 210' and extension 220' of the conductive element 200', the grounding area can be increased, thus improving the problem of poor electromagnetic compatibility (EMC) caused by the small contact area of ​​the wire harness grounding method.

[0159] Furthermore, a portion of the extension 220′ is disposed within the limiting groove 110′, which can prevent the conductive component 200′ from rotating or loosening due to vibration or external force. This not only helps maintain the grounding effect but also prevents electrical faults caused by insecure grounding.

[0160] For example, the shape of the extension 220′ can be straight, bent, S-shaped, or similar, and can be adaptively adjusted according to the internal space of the battery pack. This disclosure does not impose too many restrictions on this aspect.

[0161] For example, the conductive component 200' is mainly used for electrical connection between the BDU module 30 and the BMU module 40. The conductive component 200' can be a metal material with good conductivity, such as copper or aluminum. This embodiment does not impose too many restrictions on this.

[0162] Referring to Figures 7 and 10, in some embodiments, the extension 220′ includes a connecting segment 221′ and a bent segment 222′ connected together.

[0163] The connecting section 221' is connected to the main body 210'. The connecting section 221' is located in the limiting groove 110', and the plug 300' is inserted into the bending section 222'.

[0164] In the above embodiment, the connecting segment 221' is disposed within the limiting groove 110' to restrict the rotation of the conductive element 200' relative to the mounting base 100'. The plug-in 300' is inserted into the bent segment 222' so that the bent segment 222' is electrically connected to the BDU module 30 and the BMU module 40 through the plug-in 300'.

[0165] Among them, the bending section 222′ is a bent shape. In actual installation, it can be bent adaptively according to the installation environment between BDU module 30 and BMU module 40 to better utilize the internal space and improve installation efficiency.

[0166] Referring to Figures 7 and 10, in some specific embodiments, the bending segment 222' includes a first bending segment 2221 and a second bending segment 2222 connected to each other.

[0167] The first bending segment 2221 is connected to the connecting segment 221', and the plug-in 300' is inserted into the second bending segment 2222. The first bending segment 2221 and the second bending segment 2222 have an included angle.

[0168] In the above embodiments, the angle between the first bending segment 2221 and the second bending segment 2222 can be adjusted to make the bending segment 222′ more flexible and adaptable to different installation environments between the BDU module 30 and the BMU module 40 during installation.

[0169] For example, the included angle between the first bending segment 2221 and the second bending segment 2222 can be 30 degrees, 60 degrees or 90 degrees, etc., and can be adaptively adjusted according to the internal space of the battery pack. This disclosure does not impose too many restrictions on this.

[0170] Referring to Figures 7, 9 and 10, in some specific embodiments, the second bending segment 2222 is provided with mounting holes 223'.

[0171] The connector 300' is inserted into the second bend 2222 through the mounting hole 223'.

[0172] In the above embodiment, the mounting hole 223' is used for the second bending section 2222 to connect with the BDU module 30 and the BMU module 40.

[0173] It is understood that BDU module 30 and BMU module 40 may be provided with fixing holes corresponding to mounting holes 223′ for insertion of connector 300′, thereby connecting BDU module 30, BMU module 40 and second bending section 2222.

[0174] For example, the connector 300' can be a fastening structure such as a bolt.

[0175] For example, the shape of the mounting hole 223′ may include, but is not limited to, a circle, an ellipse, and a square.

[0176] Referring to Figures 7, 9 and 10, in some specific embodiments, the connecting device 10 includes a second limiting member 500'.

[0177] The second bending section 2222 is provided with a limiting hole 224', and the second limiting member 500' is inserted into the second bending section 2222 through the limiting hole 224'.

[0178] In the above embodiment, the BDU module 30 and BMU module 40 may be respectively provided with limiting mounting holes 223' corresponding to the limiting hole 224'. The second limiting member 500' can be inserted between the BDU module 30, BMU module 40 and the second bending segment 2222 through the limiting mounting hole 223' and the limiting hole 224', respectively. This allows the second limiting member 500' to cooperate with the plug-in member 300' to restrict the rotation of the second bending segment 2222 relative to the BDU module 30 and BMU module 40.

[0179] For example, the second limiting member 500′ can be a fastening structure such as a bolt.

[0180] For example, the shape of the limiting hole 224′ may include, but is not limited to, a circle, an ellipse, and a square.

[0181] Referring to Figures 9 and 11, in some embodiments, the mounting base 100′ is provided with a mounting groove 120′.

[0182] The limiting groove 110′ is provided on the inner wall of the mounting groove 120′, and the main body 210′ ​​is detachably snapped into the mounting groove 120′.

[0183] In the above embodiment, the structure is simple, allowing the main body 210' of the conductive component 200' to be easily detachably installed into the mounting groove 120' of the mounting base 100'. The snap-fit ​​design between the main body 210' and the mounting groove 120' facilitates timely maintenance and replacement of the main body 210'.

[0184] During installation, the extension 220' can be aligned with the limiting groove 110', and then the main body 210' can be snapped into the mounting groove 120'.

[0185] For example, the detachable snap-fit ​​method can be a pin-type snap-fit, a spring snap, a keyway structure, etc., and the embodiments disclosed herein do not impose too many restrictions on this.

[0186] Referring to Figures 9 and 11, in some specific embodiments, a first snap-fit ​​portion 130' is provided in the mounting groove 120'.

[0187] A second snap-fit ​​portion 211' is provided on the outer circumferential side of the main body portion 210'. The first snap-fit ​​portion 130' and the second snap-fit ​​portion 211' are connected to each other so that the main body portion 210' is snapped into the mounting groove 120'.

[0188] In the above embodiment, when the main body 210' is installed, the second snap-fit ​​portion 211' on the main body 210' can be aligned with the first snap-fit ​​portion 130' in the mounting groove 120', and then the two are engaged to achieve a detachable snap-fit ​​connection between the main body 210' and the mounting groove 120'.

[0189] For example, as shown in FIG7, the first latching part 130′ can be an annular latching block, and the second latching part 211′ can be an annular latching groove circumferentially disposed on the outside of the main body part 210′. The annular latching block has a notch so that the annular latching groove can enter through the notch.

[0190] Of course, the first snap-fit ​​portion 130′ can be an annular slot and the second snap-fit ​​portion 211′ can be an annular block. This embodiment does not impose too many restrictions on this.

[0191] Referring to Figures 7 and 10, in some embodiments, a grounding hole 212' is provided on the main body 210'.

[0192] The connector 400' is inserted into the grounding hole 212'.

[0193] In the above embodiment, the battery pack frame 20 may be provided with a fixing hole corresponding to the grounding hole 212', so that the connector 400' can be connected to the main body 210' and the battery pack frame 20 in sequence through the grounding hole 212' and the fixing hole to achieve grounding connection.

[0194] For example, the connector 400' is mainly used to connect the main body 210' and the battery pack frame 20, and the connector 400' can be a fastener such as a bolt.

[0195] This disclosure provides a battery management system including a BDU module 30, a BMU module 40, and the above-described connection device 10.

[0196] BDU module 30 and BMU module 40 are grounded through connection device 10.

[0197] In this embodiment of the present disclosure, since the battery management system adopts the connection device 10 in the above embodiment, it also has the advantages and benefits brought by the connection device 10. That is, by replacing the wire harness grounding method with the main body 210' and extension 220' of the conductive member 200', the grounding area can be increased and the electromagnetic compatibility can be improved. Furthermore, the rotation of the conductive member 200' can be restricted by the limiting groove 110' of the mounting base 100' to maintain the grounding effect.

[0198] Referring to FIG8, an embodiment of the present disclosure provides a battery pack, including a battery pack body and the battery management system described above.

[0199] The battery management system is located on the battery pack itself.

[0200] In the above structural configuration, since the battery pack adopts the battery management system in the above embodiment, it also has the advantages and benefits brought by the battery management system, which will not be elaborated further here.

[0201] The battery pack body may include a frame 20 and a cell module disposed within the frame 20.

[0202] This disclosure provides a vehicle including a vehicle body and a battery pack as described above, the battery pack being disposed on the vehicle body.

[0203] In the above structural configuration, since the vehicle uses the battery pack in the above embodiment, it also has the advantages and benefits brought by the battery pack, which will not be elaborated further here.

[0204] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0205] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

[0206] The above is a detailed description of the implementation of this disclosure. However, this disclosure is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the general principles of this disclosure. All such equivalent modifications or substitutions are included within the scope defined by the claims of this disclosure.

Claims

1. A connecting device (10), comprising: The plug-in body (100) has a first side (110) and a second side (120) opposite to each other. The first side (110) is used to install a first electronic module, and the second side (120) is used to install a second electronic module. The plug-in body (100) has at least one plug-in through hole (130). The plug-in through hole (130) is configured such that the terminals of the first electronic module are exposed to the second side (120) through the plug-in through hole (130). The first limiting member (200) has at least two limiting portions (210), which are disposed in the insertion through hole (130), and each limiting portion (210) is used to limit the movement of the terminal of the first electronic module.

2. The connecting device (10) according to claim 1, wherein, The limiting part (210) is provided with a guide part (211) on the side facing the second side (120), and the guide part (211) is used to guide the terminals of the second electronic module to be inserted into the terminals of the first electronic module.

3. The connecting device (10) according to claim 2, wherein, The guide portion (211) is a guide slope that is inclined from the second side surface (120) toward the first side surface (110).

4. The connecting device (10) according to any one of claims 1 to 3, wherein, The limiting part (210) is provided with a clamping part (212) at one end away from the inner wall of the insertion through hole (130), and the clamping part (212) is used to abut against the terminal of the first electronic module.

5. The connecting device (10) according to any one of claims 1 to 4, wherein, The second side (120) is provided with multiple reinforcing sections (121).

6. The connecting device (10) according to claim 5, wherein, The reinforcing section (121) and part of the second side surface (120) enclose at least one partition space (122); The insertion through hole (130) is disposed within the partition space (122).

7. The connecting device (10) according to any one of claims 1 to 6, wherein, The first side surface (110) is provided with a limiting protrusion (111); The limiting protrusion (111) and part of the first side surface (110) are arranged to form a mounting position (112) for mounting the first electronic module; The mounting position (112) is provided corresponding to the insertion through hole (130).

8. The connecting device (10) according to any one of claims 1 to 7, further comprising: A mounting base (100') is provided with a limiting groove (110'), the mounting base (100') being used to be mounted on the component to be grounded; The conductive element (200') has a main body (210') and an extension (220') connected to each other. The main body (210') is disposed on the mounting base (100'), and a portion of the extension (220') is disposed in the limiting groove (110') to restrict the conductive element (200') from rotating relative to the mounting base (100'). A connector (300') is inserted into the extension (220') and is used to electrically connect the extension (220') and the grounding component. A connector (400') is provided on the main body (210') for grounding the conductive element (200').

9. The connecting device (10) according to claim 8, wherein, The extension (220') includes a connecting section (221') and a bent section (222') that are connected to each other; The connecting segment (221') is connected to the main body (210'), the connecting segment (221') is disposed in the limiting groove (110'), and the plug (300') is inserted into the bending segment (222').

10. The connecting device (10) according to claim 9, wherein, The bending segment (222') includes a first bending segment (2221) and a second bending segment (2222) that are connected to each other. The first bending segment (2221) is connected to the connecting segment (221'), and the plug (300') is inserted into the second bending segment (2222). There is an included angle between the first bending segment (2221) and the second bending segment (2222).

11. The connecting device (10) according to claim 10, wherein, The second bending section (2222) is provided with mounting holes (223'); The connector (300') is inserted into the second bent section (2222) through the mounting hole (223').

12. The connecting device (10) according to claim 10 or 11 further includes a second limiting member (500'); The second bending section (2222) is provided with a limiting hole (224'), and the second limiting member (500') is inserted into the second bending section (2222) through the limiting hole (224').

13. The connecting device (10) according to any one of claims 8 to 12, wherein, The mounting base (100') is provided with a mounting groove (120'), and a first snap-fit ​​part (130') is provided in the mounting groove (120'); The limiting groove (110′) is disposed on the inner wall of the mounting groove (120′), and a second snap-fit ​​part (211′) is disposed on the outer circumferential side of the main body (210′). The first snap-fit ​​part (130′) and the second snap-fit ​​part (211′) are connected to each other so that the main body (210′) is snapped into the mounting groove (120′).

14. The connecting device (10) according to any one of claims 8 to 13, wherein, A grounding hole (212') is provided on the main body (210'); The connector (400') is inserted into the grounding hole (212').

15. A battery management system, comprising a BDU module (30), a BMU module (40), and a connection device (10) as described in any one of claims 1 to 14; The BDU module (30) and the BMU module (40) are respectively disposed on the plug-in body (100) of the connection device (10) and / or grounded through the connection device (10).

16. A battery pack, comprising a battery pack body and a battery management system as described in claim 15; The battery management system is located on the battery pack body.

17. A vehicle comprising a vehicle body and a battery pack as claimed in claim 16, the battery pack being disposed on the vehicle body.

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