Plug-in limiting structure, battery management system, battery pack and vehicle

Abstract

The embodiment of the utility model provides a plug-in limiting structure, a battery management system, a battery pack and a vehicle, and relates to the technical field of power batteries. The plug-in limiting structure comprises a plug-in body and a limiting piece. The plug-in body is provided with a first side face and a second side face which are opposite, the first side face is used for installing a first electronic module, the second side face is used for installing a second electronic module, and at least one plug-in through hole is formed in the plug-in body. The limiting piece is provided with at least two limiting parts, the limiting parts are arranged in the insertion through holes, and each limiting part is used for limiting movement of the terminals of the first electronic module. The plugging body is provided with the plugging through hole, the interior of the plugging through hole is provided with the limiting part, and each limiting part of the limiting part carries out the positioning and limiting of the terminal of the first electronic module, thereby guaranteeing that the terminal of the first electronic module is always located at a correct position in the plugging process, enabling the terminal of the second electronic module to be precisely located when the terminal is plugged and matched, and improving the plugging precision. And smooth plugging is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power batteries, and in particular to a plug-in limiting structure, a battery management system, a battery pack and a vehicle. BACKGROUND

[0002] A 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 relays, resistors, fuses and other components, and the BMU is mainly composed of a circuit board with control functions. As a core component of a battery control system, the BDU and the BMU have a very important safety role in the battery system.

[0003] In related technologies, when the relays in the BDU and the high-voltage sampling terminals of each part are plugged into the terminals of the BMU, the terminals will shake and displace, resulting in inaccurate docking of the terminals in the BDU and the terminals in the BMU. CONTENT OF THE UTILITY MODEL

[0004] The embodiments of the present application provide a plug-in limiting structure, a battery management system, a battery pack and a vehicle to solve the problem that the terminals will shake and cannot be accurately plugged in.

[0005] In a first aspect, the embodiments of the present application provide a plug-in limiting structure, comprising:

[0006] A plug-in body having opposite first and second sides, the first side being configured to mount a first electronic module and the second side being configured to mount a second electronic module. The plug-in body has at least one plug-in through hole configured to expose the terminals of the first electronic module to the second side through the plug-in through hole.

[0007] A limiting member having at least two limiting portions, the limiting portions being arranged in the plug-in through hole, and each limiting portion being configured to limit the movement of the terminals of the first electronic module.

[0008] In a possible implementation, the plug-in limiting structure provided by the embodiments of the present application has a guide portion on the side of the limiting portion facing the second side, and the guide portion is configured to guide the terminals of the second electronic module to plug into the terminals of the first electronic module.

[0009] In a possible implementation, the plug-in limiting structure provided by the embodiments of the present application has a guide portion on the side of the limiting portion facing the second side, and the guide portion is configured to guide the terminals of the second electronic module to plug into the terminals of the first electronic module.

[0010] In a possible implementation, the plug-in limiting structure provided by the embodiment of the application is characterized in that the limiting portion is provided with a clamping portion away from one end of the inner wall of the plug-in through hole, and the clamping portion is used for abutting against the terminal of the first electronic module.

[0011] In a possible implementation, the plug-in limiting structure provided by the embodiment of the application is characterized in that the second side surface is provided with a plurality of reinforcing segments.

[0012] In a possible implementation, the plug-in limiting structure provided by the embodiment of the application is characterized in that the reinforcing segment and part of the second side surface surround to form at least one separation space.

[0013] The plug-in through hole is arranged in the separation space.

[0014] In a possible implementation, the plug-in limiting structure provided by the embodiment of the application is characterized in that the first side surface is provided with a limiting protrusion.

[0015] The limiting protrusion and part of the first side surface surround to form a mounting position for mounting the first electronic module.

[0016] The mounting position is arranged corresponding to the plug-in through hole.

[0017] In a second aspect, the embodiment of the application provides a battery management system, comprising a BDU module, a BMU module and the plug-in limiting structure.

[0018] The BDU module and the BMU module are arranged on the plug-in body of the plug-in limiting structure respectively.

[0019] In a third aspect, the embodiment of the application provides a battery pack, comprising a battery pack body and the battery management system.

[0020] The battery management system is arranged on the battery pack body.

[0021] In a fourth aspect, the embodiment of the application provides a vehicle, comprising a vehicle body and the battery pack.

[0022] The utility model provides a kind of plug-in limiting structure, battery management system, battery pack and vehicle, and the plug-in limiting structure includes plug-in body and limiting piece.The plug-in body has opposite first side and second side, first side is used to install first electronic module, and second side is used to install second electronic module, at least one plug-in through hole is opened in plug-in body, plug-in through hole is configured, for the terminal of first electronic module is exposed to second side via plug-in through hole.Limiting piece has at least two limiting parts, limiting part is arranged in plug-in through hole, and each limiting part is used to limit the terminal movement of first electronic module.The plug-in limiting structure provided in the application embodiment, by opening plug-in through hole on plug-in body, limiting piece is arranged in plug-in through hole, each limiting part of limiting piece is positioned and limited to the terminal of first electronic module, ensure that the terminal of first electronic module is always in correct position during plug-in process, so that the terminal of second electronic module can be accurately positioned when plug-in matching, guarantee smooth plug-in. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application.

[0024] Figure 1 The structural schematic diagram of the plug-in limiting structure provided in the application embodiment is shown in the figure.

[0025] Figure 2 The structural schematic diagram of the plug-in limiting structure provided in the application embodiment is shown in the figure. Figure 1 The enlarged view of A in the figure.

[0026] Figure 3 The structural schematic diagram of the plug-in limiting structure provided in the application embodiment is shown in the figure. Figure 1 The structural schematic diagram of the plug-in limiting structure provided in the application embodiment is shown in the figure.

[0027] Figure 4 The partial structural schematic diagram of the battery pack provided in the application embodiment is shown in the figure.

[0028] Figure 5 The cooperation diagram of plug-in limiting structure and BDU module in the figure. Figure 4 The cooperation diagram of plug-in limiting structure and BDU module in the figure.

[0029] Figure 6 The enlarged view of B in the figure. Figure 5 The enlarged view of B in the figure.

[0030] Explanation of reference signs:

[0031] 10, plug-in limiting structure;

[0032] 100, plug-in body;

[0033] 110, first side;

[0034] 111, limiting protrusion;

[0035] 112, mounting position;

[0036] 120, second side surface;

[0037] 121, reinforcing section;

[0038] 122, partition space;

[0039] 123, positioning column;

[0040] 124, mounting hole;

[0041] 130, plug-through hole;

[0042] 200, limiting member;

[0043] 210, limiting portion;

[0044] 211, guide portion;

[0045] 212, clamping portion;

[0046] 220, limiting space;

[0047] 20, frame;

[0048] 30, BDU module;

[0049] 31, first terminal;

[0050] 40, BMU module;

[0051] 41, second terminal.

[0052] The specific embodiments of the application have been shown by way of example in the above figures, and will be described in more detail hereafter. These figures and this written description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate the inventive concept to one of ordinary skill in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0053] Exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which the same or like reference numerals in different drawings represent an identical or similar element. The embodiments described in the following exemplary embodiments are not representative of all embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present application as detailed in the appended claims.

[0054] The terms "first", "second", "third", and "fourth" and the like in the description and in the claims of the utility model, and the above drawings (if any) are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0055] As described in the background, in the related art, when the high-voltage sampling terminals of the BDU relay and each part are plugged with the terminals of the BMU, the terminals will shake, resulting in inaccurate docking of the terminals in the BDU and the terminals in the BMU.

[0056] In view of the above problems existing in the prior art, the utility model provides a plug-in limiting structure, a battery management system, a battery pack and a vehicle, the plug-in limiting structure includes a plug-in body and a limiting piece. The plug-in body has opposite first and second sides, the first side is used for mounting a first electronic module, and the second side is used for mounting a second electronic module. At least one plug-in through hole is formed in the plug-in body, and the plug-in through hole is configured to expose the terminals of the first electronic module to the second side through the plug-in through hole. The limiting piece has at least two limiting parts, and the limiting parts are arranged in the plug-in through hole. Each limiting part is used for limiting the movement of the terminals of the first electronic module. The plug-in limiting structure provided by the embodiments of the present application can ensure that the terminals of the first electronic module are always in the correct position during the plug-in process, so that the terminals of the second electronic module can be accurately positioned when they are plugged in and matched, and smooth plug-in is ensured.

[0057] In the following, an exemplary application scenario of the utility model is introduced.

[0058] The plug-in limiting structure provided by the utility model can be applied to the battery pack of a new energy vehicle, such as the battery pack of a pure electric drive vehicle, the battery pack of a plug-in hybrid vehicle, etc. Specifically, the plug-in limiting structure provided by the utility model can ensure smooth plug-in by forming a plug-in through hole in the plug-in body and arranging a limiting piece in the plug-in through hole, and each limiting part of the limiting piece can position and limit the terminals of the first electronic module.

[0059] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes can not be described again in some examples. The embodiments of the present application will be described below with reference to the drawings.

[0060] Referring to Figures 1 to 3 The plug-in limiting structure 10 provided by the embodiments of the present application includes a plug-in body 100 and a limiting piece 200.

[0061] The plug-in body 100 has opposite first and second side surfaces 110 and 120, the first side surface 110 is used for mounting a first electronic module, and the second side surface 120 is used for mounting a second electronic module. At least one plug-in through hole 130 is formed in the plug-in body 100, and the plug-in through hole 130 is configured to expose a terminal of the first electronic module to the second side surface 120 through the plug-in through hole 130.

[0062] The limiting piece 200 has at least two limiting portions 210, the limiting portions 210 are arranged in the plug-in through hole 130, and each limiting portion 210 is used for limiting the movement of the terminal of the first electronic module.

[0063] It can be understood that the plug-in limiting structure 10 provided by the embodiments of the present application can be used in the battery management system of the battery pack to accurately plug the terminal of the BDU module 30 and the terminal of the BMU module 40. Among them, the above-mentioned first electronic module can be any one of the BDU module 30 and the BMU module 40, and the second electronic module can be the other one, and the embodiments of the present application do not make too many limitations. The following will take the first electronic module as the BDU module 30 and the second electronic module as the BMU module 40 to exemplarily illustrate the present application.

[0064] Referring to Figure 4 The battery pack includes a frame 20, and the frame 20 is arranged with a battery cell module, a BDU module 30 and a BMU module 40. The BDU module 30 and the BMU module 40 are electrically connected with the battery cell module. The BDU module 30 is mainly used for controlling the charging and discharging process of the battery cell module, and the BMU module 40 is mainly used for instant monitoring of the voltage, temperature and other parameters of the battery cell module. The BDU module 30 has a first terminal 31, and the BMU module 40 has a second terminal 41. The first terminal 31 is plugged with the second terminal 41 to realize the electrical connection between the BDU module 30 and the BMU module 40.

[0065] Referring to Figure 1 , Figure 2 and Figure 6As shown, the plug-in body 100 can be arranged on the frame 20, the BDU module 30 can be mounted on the first side 110 of the plug-in body 100, the BMU module 40 can be mounted on the second side 120 of the plug-in body 100, and the first terminal 31 of the BDU module 30 can be exposed to the second side 120 through the plug-in hole 130 to facilitate plugging with the second terminal 41 of the BMU module 40 located on the second side 120.

[0066] In the plug-in hole 130, a limiting piece 200 is arranged, and each limiting part 210 of the limiting piece 200 surrounds a limiting space 220, and the first terminal 31 can extend into the limiting space 220 and be limited by each limiting part 210 to prevent the first terminal 31 from shifting, moving, or even falling off due to vibration, external force, or other factors. And it can ensure that the first terminal 31 is always in the correct position during plugging, so that the second terminal 41 of the BMU module 40 can be accurately positioned when plugging and matching, ensuring smooth plugging, solving the problem of terminal stress and rework in the production and assembly process.

[0067] The plug-in limiting structure 10 provided by the embodiment of the application can ensure that the terminal of the first electronic module is always in the correct position during plugging, so that the terminal of the second electronic module can be accurately positioned when plugging and matching, and smooth plugging is ensured.

[0068] It can be understood that the number of at least one plug-in hole 130 can be one or more, as long as it can match the number of terminals between the BDU module 30 and the BMU module 40, and the embodiment of the application does not make too many limitations.

[0069] It can be understood that the number of at least two limiting parts 210 can be two, three, four or more, as long as each limiting part 210 can form a limiting space 220, and the embodiment of the application does not make too many limitations.

[0070] For example, the shape of the limiting space 220 can be rectangular, circular, oval, square, etc., as long as it can match the shape of the first terminal 31 of the BDU module 30, and the embodiment of the application does not make too many limitations.

[0071] Referring to Figure 1 and Figure 2 As shown, in some embodiments, the side of the limiting part 210 facing the second side 120 is provided with a guide part 211, and the guide part 211 is used to guide the plugging of the terminal of the second electronic module with the terminal of the first electronic module.

[0072] 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, so as to ensure the accuracy of the insertion matching.

[0073] Referring to Figure 1 and Figure 3 , in some specific embodiments, the guide portion 211 is a guide slope inclined from the second side 120 to the first side 110.

[0074] In the above embodiment, the guide slope has a preset gap, which can avoid the second terminal 41 of the BMU module 40 when being inserted, so as to prevent the second terminal 41 from directly colliding with the limiting portion 210 and avoid damaging the second terminal 41.

[0075] In addition, 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 hindered by the limiting portion 210, so as to prevent interference with the insertion process.

[0076] Referring to Figure 1 and Figure 3 , in some embodiments, the limiting portion 210 is provided with a clamping portion 212 at one end away from the inner wall of the insertion hole 130, and the clamping portion 212 is used to abut against the terminal of the first electronic module.

[0077] In the above embodiment, the clamping portion 212 is mainly used to abut against the first terminal 31 of the BDU module 30 to limit the movement of the first terminal 31 during the insertion process.

[0078] In the above embodiment, the clamping portion 212 is mainly used to abut against the first terminal 31 of the BDU module 30 to limit the movement of the first terminal 31 during the insertion process. Figure 2 Figure 6 In the above embodiment, the clamping portion 212 is mainly used to abut against the first terminal 31 of the BDU module 30 to limit the movement of the first terminal 31 during the insertion process.

[0079] Referring to Figure 1 , Figure 2 and Figure 5 , in some embodiments, the second side 120 is provided with a plurality of reinforcing segments 121.

[0080] In the above embodiment, the reinforcing segment 121 can provide additional support, thereby enhancing the stability of the structure of the insertion body 100 and reducing the deformation or damage of the insertion body 100 due to external force during use.

[0081] For example, the shape of the reinforcing segment 121 can be a long strip, an S shape, a wave shape, etc., and the present application does not make too many limitations on this.

[0082] Referring to​Figure 1 , Figure 2 and Figure 6 As shown, in some specific embodiments, the reinforcing segment 121 and a portion of the second side 120 enclose at least one partition space 122.

[0083] The insertion through hole 130 is located within the partition space 122.

[0084] 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.

[0085] Among them, reference Figure 1 and Figure 5 As shown, 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 set in each partition space 122 in a one-to-one correspondence. This can separate different plug-in through holes 130, thereby avoiding misconnection of different terminals in BDU module 30 and BMU module 40.

[0086] 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.

[0087] For example, the shape of the partition space 122 can be square, circular, elliptical, rhomboid, etc., and this application embodiment does not impose too many restrictions on it.

[0088] Reference Figure 3 As shown, in some embodiments, the first side 110 is provided with a limiting protrusion 111.

[0089] The limiting protrusion 111 and part of the first side 110 surround to form a mounting position 112 for mounting the first electronic module.

[0090] Mounting position 112 is set to correspond to the insertion through hole 130.

[0091] 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.

[0092] And, the mounting position 112 is arranged corresponding to the plug-in through hole 130, so that after the relevant components in the BDU module 30 are mounted on the mounting position 112, the first terminal 31 can be accurately inserted into the plug-in through hole 130.

[0093] Referring to Figure 1 and Figure 5 It is shown that in some embodiments, the second side 120 is provided with a positioning column 123.

[0094] The positioning column 123 is used for positioning and mounting of the second electronic module.

[0095] In the above embodiment, the BMU module 40 can be provided with a positioning hole, and when the second terminal 41 of the BMU module 40 is plugged with the first terminal 31 of the BDU module 30, the mounting position 112 of the BMU module 40 is guided and limited by the positioning column 123, so as to ensure that the BMU module 40 can be correctly placed in the predetermined mounting position 112, so that the second terminal 41 and the first terminal 31 are smoothly plugged.

[0096] Referring to Figure 1 and Figure 5 It is shown that in some embodiments, the second side 120 can also be provided with a mounting hole 124.

[0097] The BDU module 30 can be mounted on the second side 120 of the plug-in body 100 through a fastener such as a bolt.

[0098] Referring to Figures 4 to 6 It is shown that the battery management system provided by the embodiments of the present application includes a BDU module 20, a BMU module 30 and the plug-in limiting structure 10 as above.

[0099] The BDU module 20 and the BMU module 30 are arranged on the plug-in body 100 of the plug-in limiting structure 10 respectively.

[0100] In the embodiments of the present application, since the battery management system adopts the plug-in limiting structure 10 in the above embodiments, it also has the advantages and benefits brought by the plug-in limiting structure 10, that is, by opening the plug-in through hole 130 on the plug-in body 100, the limiting piece 200 is arranged in the plug-in through hole 130, and each limiting part 210 of the limiting piece 200 positions and limits the terminal of the BDU module 20, so as to ensure smooth plugging.

[0101] Referring to Figures 4 to 6 It is shown that the battery pack provided by the embodiments of the present application includes a battery pack body and a battery management system as above.

[0102] The battery management system is arranged on the battery pack body.

[0103] In the above structure, since the battery pack adopts the battery management system in the above embodiment, the battery pack also has the advantages and benefits brought by the battery pack, which will not be repeated here.

[0104] The battery pack body can include a frame 20 and a battery cell module, a BDU module 30 and a BMU module 40 arranged in the frame 20, the BDU module 30 and the BMU module 40 are electrically connected with the battery cell module, the BDU module 30 is mainly used for controlling the charging and discharging process of the battery cell module, and the BMU module 40 is mainly used for instant monitoring of the voltage, temperature and other parameters of the battery cell module.

[0105] The vehicle provided by the embodiment of the present application comprises a vehicle body and the above battery pack, and the battery pack is arranged on the vehicle body.

[0106] In the above structure, since the vehicle adopts the battery pack in the above embodiment, the vehicle also has the advantages and benefits brought by the battery pack, which will not be repeated here.

[0107] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The specification and examples given are exemplary only and the true scope and spirit of the application are indicated by the following claims. The application is to be limited only by the claims sufficiently supported by this specification.

[0108] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is to be limited only by the appended claims.

Claims

1. A plug-in limiting structure, characterized by, The application relates to a plug-limiting structure (10) comprising: a plug body (100) having opposite first and second sides (110, 120), the first side (110) being configured to mount a first electronic module, the second side (120) being configured to mount a second electronic module, the plug body (100) being provided with at least one plug-through hole (130) configured to expose a terminal of the first electronic module to the second side (120) through the plug-through hole (130); a limiting member (200) having at least two limiting portions (210) arranged in the plug-through hole (130), each limiting portion (210) being configured to limit movement of the terminal of the first electronic module.

2. The plug limiting structure according to claim 1, wherein The limiting portion (210) is provided with a guide portion (211) on a side facing the second side (120), the guide portion (211) being configured to guide plugging of the terminal of the second electronic module with the terminal of the first electronic module.

3. The plug limit structure according to claim 2, characterized in that, The guide portion (211) is a guide slope inclined from the second side (120) to the first side (110).

4. The plug limit structure according to claim 1, wherein The limiting portion (210) is provided with a clamping portion (212) on an end away from an inner wall of the plug-through hole (130), the clamping portion (212) being configured to abut the terminal of the first electronic module.

5. The plug-in limit structure according to any one of claims 1 to 4, characterized in that, The second side (120) is provided with a plurality of reinforcing sections (121).

6. The plug limiting structure according to claim 5, wherein The reinforcing sections (121) and part of the second side (120) surround to form at least one partition space (122). The plug-through hole (130) is arranged in the partition space (122).

7. The plug-in limit structure according to any one of claims 1 to 4, characterized in that, The first side (110) is provided with a limiting protrusion (111). The limiting protrusion (111) and part of the first side (110) surround to form a mounting position (112) for mounting the first electronic module. The mounting position (112) is arranged corresponding to the plug-through hole (130).

8. A battery management system, characterized by, The application further relates to a battery management system comprising a BDU module (20), a BMU module (30) and the plug-limiting structure (10) as claimed in any one of claims 1 to 7. The BDU module (20) and the BMU module (30) are arranged on the plug body (100) of the plug-limiting structure (10) respectively.

9. A battery pack, characterized by, The application further relates to a battery management system comprising a battery pack body and the battery management system as claimed in claim 8. The battery management system is arranged on the battery pack body.

10. A vehicle characterized by comprising: The application further relates to a battery pack comprising a vehicle body and the battery pack as claimed in claim 9, the battery pack being arranged on the vehicle body.

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