Bms housing and battery management system

Abstract

The embodiment of the application provides a kind of BMS shell and battery management system, it is related to battery management system technical field.BMS shell includes first shell, first shell is formed in first accommodating cavity;Second shell, second shell is formed in second accommodating cavity, first accommodating cavity and second accommodating cavity are used to accommodate circuit board in common, first shell and second shell are slidingly connected, to slide into second accommodating cavity or slide out of second accommodating cavity;Limiting piece, it is set on first shell, limiting piece is configured to, the relative position of first shell and second shell is locked.First shell is relative to second shell sliding, to adjust the depth of first shell sliding into second accommodating cavity, the length of entire BMS shell can be adjusted, flexibly adapt to different length main control board, the relative position of first shell and second shell is locked by limiting piece, that is, the current position of first shell and second shell is locked by limiting piece, so that BMS shell maintains current length.

Description

Technical Field

[0001] This utility model relates to the field of battery management system technology, and in particular to a BMS housing and battery management system. Background Technology

[0002] The Battery Management System (BMS) is the control unit for the operation of the power battery pack in new energy vehicles. Its main functions include monitoring the battery's status, providing safety protection, and managing energy. The BMS collects parameters such as voltage, current, and temperature of the battery pack in real time, calculates the battery's state of charge and health, adjusts the differences between individual cells using equalization control technology, and works in conjunction with the vehicle's control system to optimize charging and discharging strategies, ensuring the safe operation and optimal performance of the battery pack.

[0003] The battery management system mainly consists of the BMS housing, the battery pack enclosure, and the main control board. The main control board is installed inside the BMS housing, which in turn is mounted on the battery pack enclosure. The BMS housing has a hollow structure to protect the internal main control board from physical damage and dust contamination. Because the main control board dimensions vary depending on the application environment, custom-made BMS housings of matching sizes are required for installation of main control boards of different sizes.

[0004] However, the production cost of customizing BMS housings according to different sizes of main control boards is high, and the BMS housing cannot flexibly adapt to the size of the main control board when replacing it with a different size. Utility Model Content

[0005] This utility model provides a BMS housing and a battery management system to solve the problem that the BMS housing cannot flexibly adapt to the size of the main control board. To achieve the above objective, the technical solution adopted by this utility model is as follows:

[0006] In a first aspect, this utility model provides a BMS housing, comprising:

[0007] A first housing, wherein a first receiving cavity is formed within the first housing;

[0008] The second housing has a second accommodating cavity formed therein. The first accommodating cavity and the second accommodating cavity are used together to accommodate the main control board. The first housing and the second housing are slidably connected so that the first housing can slide into or slide out of the second accommodating cavity.

[0009] A limiting member is disposed on the first housing, and the limiting member is configured to lock the relative position of the first housing and the second housing.

[0010] In one possible implementation, the second housing is provided with at least two limiting grooves, and the limiting member is selectively engaged in one of the limiting grooves.

[0011] In one possible implementation, at least one of the first housing and the second housing is provided with a mounting groove for engaging with the main control board.

[0012] In one possible implementation, a support member is provided in at least one of the first accommodating cavity and the second accommodating cavity, and the support member is used to support the main control board.

[0013] In one possible implementation, the BMS housing further includes a locking member, and a connector is disposed in at least one of the first accommodating cavity and the second accommodating cavity, with the locking member passing through the connector and the main control board in sequence.

[0014] In one possible implementation, at least one of the first housing and the second housing is provided with a plug-in hole for accommodating the plug-in terminal of the main control board.

[0015] In one possible implementation, the first housing includes an extension end and a fixed end, the extension end being slidably connected to the second housing, and the extension end being matched with the second accommodating cavity.

[0016] In one possible implementation, a slider is provided on the extended end, and a groove is provided inside the second housing, with the slider correspondingly disposed in the groove.

[0017] In one possible implementation, at least one of the first housing and the second housing is provided with a mounting member for connecting to the battery pack housing.

[0018] Secondly, the present invention provides a battery management system, including a main control board and a BMS housing as described in any of the first aspects, wherein the main control board is disposed within the BMS housing.

[0019] The beneficial effects of this utility model are:

[0020] The present invention provides a BMS housing and a battery management system. The BMS housing includes a first housing with a first accommodating cavity; a second housing with a second accommodating cavity; the first and second accommodating cavities together accommodate a main control board; the first and second housings are slidably connected to each other to slide into or out of the second accommodating cavity; and a limiting member disposed on the first housing, configured to lock the relative position of the first and second housings. The first housing slides relative to the second housing, thereby adjusting the depth to which the first housing slides into the second accommodating cavity, allowing adjustment of the overall length of the BMS housing to flexibly accommodate main control boards of different lengths. Locking the relative position of the first and second housings by the limiting member ensures that the BMS housing maintains its current length. Attached Figure Description

[0021] Figure 1 The diagram shown is a structural schematic of the BMS housing provided by this utility model.

[0022] Figure 2 The diagram shown is an exploded view of the BMS housing provided by this utility model;

[0023] Figure 3 Displayed as Figure 1 A schematic diagram of the structure of the first shell in the middle;

[0024] Figure 4 Displayed as Figure 1 A schematic diagram of the structure of the second shell.

[0025] In the picture,

[0026] 10-Main control board; 11-Plug-in terminal;

[0027] 100 - First housing; 110 - First accommodating cavity; 120 - Mounting groove; 130 - Insertion end; 140 - Fixed end; 150 - Slider;

[0028] 200 - Second housing; 210 - Second accommodating cavity; 220 - Limiting groove; 230 - Insertion hole; 240 - Sliding groove;

[0029] 300 - Limiting component;

[0030] 400 - Locking component;

[0031] 500 - Installation components;

[0032] 600-Connector;

[0033] 700 - Support component. Detailed Implementation

[0034] 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 numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of the embodiments of this application.

[0035] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing the embodiments of this application and their implementations, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. For those skilled in the art, the specific meaning of these terms in the embodiments of this application can be understood according to the specific circumstances.

[0036] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0037] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0038] In this application, the terms "exemplarily" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplarily" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of terms such as "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner.

[0039] Unless otherwise stated, the term "multiple" means two or more.

[0040] First, let me explain the terms used in this application:

[0041] BMS Enclosure: The Battery Management System Enclosure (BMS Enclosure) is a mechanical load-bearing and protective structural component of the battery management system, used to provide mechanical protection for the main control board.

[0042] Battery pack housing: The external protective structure of the power battery, used to integrate and protect the battery modules and battery management system.

[0043] As described in the background section, the Battery Management System (BMS) is the control unit for the operation of the power battery pack in new energy vehicles. Its main functions include monitoring the battery's state, providing safety protection, and managing energy. The BMS collects parameters such as voltage, current, and temperature of the battery pack in real time, calculates the battery's state of charge and health, adjusts the differences between individual cells using equalization control technology, and works in conjunction with the vehicle control system to optimize charging and discharging strategies, ensuring the safe operation and optimal performance of the battery pack.

[0044] The battery management system mainly consists of the BMS housing, the battery pack enclosure, and the main control board. The main control board is installed inside the BMS housing, which in turn is mounted on the battery pack enclosure. The BMS housing has a hollow structure to protect the internal main control board from physical damage and dust contamination. Because the main control board dimensions vary depending on the application environment, custom-made BMS housings of matching sizes are required for installation of main control boards of different sizes.

[0045] However, the production cost of customizing BMS housings according to different sizes of main control boards is high, and the BMS housing cannot flexibly adapt to the size of the main control board when replacing it with a different size.

[0046] The BMS housing and battery management system provided in this application include a first housing with a first accommodating cavity formed within it; a second housing with a second accommodating cavity formed within it; the first and second accommodating cavities jointly accommodate a main control board; the first and second housings are slidably connected to each other to slide into or out of the second accommodating cavity; and a limiting member disposed on the first housing, configured to lock the relative position of the first and second housings. The first housing slides relative to the second housing, thereby adjusting the depth to which the first housing slides into the second accommodating cavity, allowing adjustment of the overall length of the BMS housing to flexibly accommodate main control boards of different lengths. Locking the relative position of the first and second housings by the limiting member ensures that the BMS housing maintains its current length.

[0047] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will be described below with reference to the accompanying drawings.

[0048] Figure 1 The diagram shown is a structural schematic of the BMS housing provided in an embodiment of this application. Figure 1 , Figure 2 The diagram shown is an exploded view of the BMS housing provided by this invention. Figure 3 Displayed as Figure 1 A schematic diagram of the structure of the first shell. Figure 4 Displayed as Figure 1 A schematic diagram of the structure of the second shell.

[0049] Please refer to Figures 1 to 4 In a first aspect, this embodiment provides a BMS housing, including a first housing 100, in which a first receiving cavity 110 is formed; a second housing 200, in which a second receiving cavity 210 is formed, the first receiving cavity 110 and the second receiving cavity 210 jointly serving to accommodate a main control board 10, the first housing 100 and the second housing 200 being slidably connected to slide into or out of the second receiving cavity 210; and a limiting member 300 disposed on the first housing 100, the limiting member 300 being configured to lock the relative position of the first housing 100 and the second housing 200.

[0050] Specifically, in this embodiment, a first receiving cavity 110 is formed inside the first housing 100, and a second receiving cavity 210 is formed inside the second housing 200. The first housing 100 and the second housing 200 are nested together. When the first housing 100 and the second housing 200 are slidably connected, the first receiving cavity 110 and the second receiving cavity 210 communicate with each other, thereby jointly forming a variable-length receiving space to accommodate main control boards 10 of different lengths.

[0051] Specifically, when a longer main control board 10 needs to be installed, the first housing 100 can slide relative to the second housing 200 in a direction away from the second housing 200, thereby reducing the overlap between the first accommodating cavity 110 and the second accommodating cavity 210, thus expanding the overall accommodating space of the BMS housing. When a shorter main control board 10 needs to be installed, the first housing 100 can slide relative to the second housing 200 in a direction close to the second housing 200, thereby increasing the overlap between the first accommodating cavity 110 and the second accommodating cavity 210, thus reducing the overall accommodating space of the BMS housing. By sliding the first housing 100 and the second housing 200 together, the installation requirements of main control boards 10 of different sizes can be flexibly adapted, greatly improving the versatility and adaptability of the BMS housing. There is no need to customize the BMS housing or reserve multiple fixed-size mounting slots, thus avoiding space waste and insufficient compatibility. Furthermore, the BMS housing provided in this embodiment has a simple structure, is easy to install, and is conducive to lightweight production.

[0052] In a specific implementation, the first housing 100 and the second housing 200 can be connected by a slide rail structure to ensure smoothness and positioning accuracy during the sliding process. In other embodiments, other structures capable of achieving a sliding connection can also be used between the first housing 100 and the second housing 200; this embodiment does not impose any restrictions on this.

[0053] Specifically, in this embodiment, a limiting member 300 is provided on the first housing 100. The limiting member 300 is used to lock the relative position of the first housing 100 and the second housing 200, thereby preventing the first housing 100 from disengaging from the second housing 200 when the BMS housing is subjected to vibration or shaking.

[0054] In one exemplary embodiment, the limiting member 300 is a screw. The first housing 100 and the second housing 200 are connected by screwing the screw through the second housing 200 and onto the first housing 100. This screw enables a detachable connection between the first housing 100 and the second housing 200, allowing for quick disassembly when adjusting the size of the BMS housing and improving operational convenience.

[0055] In other embodiments, the specific structure of the limiting member 300 can be adapted to actual needs, and this embodiment does not impose any restrictions on this.

[0056] It should also be noted that in this embodiment, there are multiple limiting members 300, which are evenly and spaced apart on the first housing 100 to enhance the stability of the connection between the first housing 100 and the second housing 200.

[0057] Please refer to Figures 1 to 4 In an optional embodiment, the second housing 200 has at least two limiting grooves 220, and the limiting member 300 is selectively engaged in one of the limiting grooves 220.

[0058] Specifically, in this embodiment, the second housing 200 is provided with at least two limiting grooves 220. When the first housing 100 slides relative to the second housing 200, the limiting member 300 can selectively engage with one of the limiting grooves 220 to achieve the connection between the first housing 100 and the second housing 200. By engaging the limiting member 300 with different limiting grooves 220, the BMS housing can be fixed and limited at different lengths, thereby forming accommodating spaces of different sizes.

[0059] Specifically, in this embodiment, the limiting member 300 is made of a material with a certain elastic deformation capability. When the first housing 100 slides relative to the second housing 200, the limiting member 300 is compressed and located between the first housing 100 and the second housing 200. When the first housing 100 slides to a preset position, the limiting member 300 extends out of the limiting groove 220 and engages with the limiting groove 220, thereby realizing the connection between the first housing 100 and the second housing 200.

[0060] In one exemplary embodiment, the first housing 100 has a receiving groove for accommodating the limiting member 300, and a spring is disposed in the receiving groove to support the limiting member 300. When the first housing 100 slides relative to the second housing 200, the limiting member 300 is compressed by the second housing 200. At this time, the spring is compressed, and the limiting member 300 is located in the receiving groove. When the first housing 100 slides to a preset position, the spring releases its elastic force, causing the limiting member 300 to extend out of the receiving groove and engage with the limiting groove 220.

[0061] In other embodiments, the limiting member 300 can also be a buckle. A gap is reserved between the first housing 100 and the second housing 200 to accommodate the buckle in a compressed state. When the first housing 100 slides relative to the second housing 200, the buckle is compressed and located in the gap. When the first housing 100 slides to a preset position, the buckle extends out of the limiting groove 220 and engages with the limiting groove 220 under the action of its own elastic recovery ability.

[0062] Furthermore, it should be noted that this embodiment does not impose any restrictions on the specific structure of the limiting member 300, and operators can make adaptive selections according to actual needs.

[0063] Meanwhile, in this embodiment, the number and arrangement of the limiting grooves 220 can be designed according to the size of the commonly used main control board 10 to ensure that the BMS housing can adapt to main control boards 10 of various sizes.

[0064] To ensure the stability of the engagement between the limiting member 300 and the limiting groove 220, in this embodiment, there are two limiting members 300, which are disposed opposite to each other on both sides of the first housing 100. Correspondingly, there are two sets of limiting grooves 220, which are disposed opposite to each other on the second housing 200. This double-point fixing method ensures the stability of the connection between the first housing 100 and the second housing 200.

[0065] Please refer to Figures 1 to 4 In an optional embodiment, at least one of the first housing 100 and the second housing 200 includes a mounting slot 120 for mounting the main control board 10.

[0066] Specifically, in this embodiment, the first housing 100 has a mounting groove 120. When installing the main control board 10, the main control board 10 can be inserted into the mounting groove 120 to fix it. Then, the first housing 100 is slid into the second housing 200 so that the accommodating space of the BMS housing matches the length of the main control board 10. Thus, by aligning the main control board 10 with the mounting groove 120, the stability of the main control board 10 fixed in the BMS housing is ensured, and the ease of installation is improved.

[0067] In this embodiment, there are two mounting slots 120. The two mounting slots 120 are opened opposite each other on both sides of the first housing 100, thereby fixing and supporting both sides of the main control board 10 and ensuring the stability of the main control board 10 during installation.

[0068] In other embodiments, a mounting slot 120 may also be provided within the second housing 200. When installing the main control board 10, it can be first inserted into the mounting slot 120 within the first housing 100, then the end of the main control board 10 not inserted into the first housing 100 can be inserted into the mounting slot 120 within the second housing 200. Then, the first housing 100 can be slid relative to the second housing 200 to adjust the accommodating space of the BMS housing to match the length of the main control board 10, thereby further enhancing the stability of the main control board 10 installation.

[0069] Furthermore, it should be noted that in other embodiments, the mounting groove 120 may be provided only in the second housing 200, and this embodiment does not impose any restrictions on this.

[0070] Please refer to Figures 1 to 4 In an optional embodiment, at least one of the first accommodating cavity 110 and the second accommodating cavity 210 is provided with a support member 700 for supporting the main control board 10.

[0071] Specifically, in this embodiment, the BMS housing also includes a support member 700 for supporting the main control board 10. The support member 700 can be disposed in the first accommodating cavity 110 or the second accommodating cavity 210, or the support member 700 can be disposed in both the first accommodating cavity 110 and the second accommodating cavity 210. This embodiment does not impose any restrictions on this.

[0072] The support member 700 abuts against the bottom surface of the main control board 10, thereby supporting the main control board 10 and preventing the main control board 10 from shaking due to external forces.

[0073] In this embodiment, the support member 700 is manufactured using an integral molding process with the first housing 100 or the second housing 200 to ensure the connection strength between the support member 700 and the first housing 100 or the second housing 200.

[0074] In an optional embodiment, the surface of the support 700 is provided with a rubber layer that abuts against the main control board 10, so that when the vehicle shakes or vibrates, the rubber layer can absorb vibration energy and prevent the main control board 10 from being damaged by vibration.

[0075] Please refer to Figures 1 to 4 In an optional embodiment, the BMS housing further includes a locking member 400, and a connector 600 is disposed in at least one of the first accommodating cavity 110 and the second accommodating cavity 210, with the locking member 400 passing through the connector 600 and the main control board 10 in sequence.

[0076] Specifically, in this embodiment, a connector 600 is provided in the first accommodating cavity 110. The connector 600 is used to install the locking member 400. The locking member 400 can pass through the main control board 10 and the connector 600 to connect the main control board 10 to the first housing 100, thereby preventing the main control board 10 from shaking in the first accommodating cavity 110.

[0077] In this embodiment, the locking member 400 is a bolt, and the connecting member 600 is disposed on the inner bottom of the first housing 100. The connecting member 600 has a threaded hole, and both the first housing 100 and the main control board 10 have through holes for the bolt to pass through. During installation, the bolt passes through the through holes on the first housing 100 and the main control board 10 in sequence, and is screwed onto the threaded hole of the connecting member 600, thereby fixing the main control board 10.

[0078] In an optional embodiment, there are four connectors 600, with two connectors 600 disposed in the first accommodating cavity 110 and two connectors 600 disposed in the second accommodating cavity 210. When the main control board 10 is disposed in the first accommodating cavity 110 and the second accommodating cavity 210, the four connectors 600 correspond to the four corners of the main control board 10, thereby ensuring the stability of the main control board 10 by means of four-point fixation.

[0079] It should be noted that this embodiment does not impose any restrictions on the number or arrangement of the connectors 600. Operators can make adaptive selections according to actual needs. For example, there are two connectors 600, one of which is disposed in the first receiving cavity 110 and the other in the second receiving cavity 210. Alternatively, the connectors 600 may be disposed only in the first receiving cavity 110 or the second receiving cavity 210.

[0080] Please refer to Figures 1 to 4 In an optional embodiment, at least one of the first housing 100 and the second housing 200 is provided with a plug hole 230 for accommodating the plug end 11 of the main control board 10.

[0081] Specifically, the main control board 10 is typically provided with a plug-in terminal 11, which needs to be electrically connected to external devices for signal transmission. Therefore, at least one of the first housing 100 and the second housing 200 provided in this embodiment is provided with a plug-in hole 230. When the main control board 10 is installed in the BMS housing, the plug-in terminal 11 can extend from the plug-in hole 230 to connect to external devices.

[0082] Specifically, in this embodiment, the insertion hole 230 is formed on the second housing 200 and is connected to the second accommodating cavity 210 so that the insertion end 11 of the main control board 10 can extend out.

[0083] In another embodiment, the insertion hole 230 is formed on the first housing 100 and is connected to the first accommodating cavity 110 so that the insertion end 11 of the main control board 10 can extend out.

[0084] In another embodiment, both the first housing 100 and the second housing 200 are provided with insertion holes 230. Operators can adapt the insertion end 11 to extend from the insertion hole 230 on the first housing 100 or from the insertion hole 230 on the second housing 200 according to actual needs, thereby improving the universality of the BMS housing.

[0085] Please refer to Figures 1 to 4 In an optional embodiment, the first housing 100 includes an extension end 130 and a fixed end 140, the extension end 130 being slidably connected to the second housing 200 and the extension end 130 being matched with the second accommodating cavity 210.

[0086] Specifically, in this embodiment, the first housing 100 includes an extension end 130 and a fixed end 140. The extension end 130 is slidably connected to the second housing 200 and is matched with the second accommodating cavity 210. The fixed end 140 is matched with the second housing 200. Thus, when the extension end 130 is fully inserted into the second accommodating cavity 210, the fixed end 140 and the outer surface of the second housing 200 are parallel to each other, ensuring the aesthetics of the entire BMS housing.

[0087] Meanwhile, by matching the insertion end 130 with the second accommodating cavity 210, the stability of the insertion end 130 when sliding relative to the second housing 200 can be guaranteed, and shaking during sliding can be avoided due to the large difference in size.

[0088] Please refer to Figures 1 to 4 In an optional embodiment, a slider 150 is provided on the insertion end 130, and a groove 240 is provided in the second housing 200, with the slider 150 correspondingly disposed in the groove 240.

[0089] Specifically, in this embodiment, the insertion end 130 and the second housing 200 are slidably connected through the structure of the slider 150 and the groove 240. By positioning the slider 150 within the groove 240, the relative sliding direction between the insertion end 130 and the second housing 200 can be limited, while ensuring the stability of the sliding.

[0090] In this embodiment, the slider 150 has a rectangular structure, and correspondingly, the groove 240 is a rectangular groove 240. In other embodiments, to enhance the stability of the connection and sliding between the first housing 100 and the second housing 200, the slider 150 may also be L-shaped or other shapes, and the groove 240 and the slider 150 may be arranged opposite to each other. This embodiment does not impose any restrictions on this.

[0091] Furthermore, it should be noted that in this embodiment, there are two sliders 150, and the length of the slider 150 is the same as the length of the extension end 130. The two sliders 150 are respectively disposed on both sides of the extension end 130 to ensure the smoothness of sliding.

[0092] Please refer to Figures 1 to 4 In an optional embodiment, at least one of the first housing 100 and the second housing 200 is provided with a mounting member 500 for connection to the battery pack housing.

[0093] Specifically, since the battery management system (BMS) needs to monitor the battery status in real time and ensure the safe operation of the battery, the BMS housing provided in this embodiment is installed on the battery pack housing to achieve close-range monitoring of the battery pack housing.

[0094] In this embodiment, at least one of the first housing 100 and the second housing 200 is provided with a mounting member 500 for connecting to the battery pack housing, so as to realize the connection between the BMS housing and the battery pack housing.

[0095] In this embodiment, the mounting component 500 is a mounting foot, and the mounting foot has through holes for screws or bolts to pass through. The BMS housing is fixed to the battery pack housing by screws or bolts.

[0096] In other embodiments, the mounting component 500 may also be other structures capable of connection, and operators may make adaptive choices according to actual needs. This embodiment does not impose any restrictions on this.

[0097] Specifically, in this embodiment, both the first housing 100 and the second housing 200 are provided with mounting members 500. There are four mounting members 500, which are distributed at the four corners of the BMS housing. Specifically, two mounting members 500 are located at the two corners of the first housing 100 away from the second housing 200, and the other two mounting members 500 are located at the two corners of the second housing 200 away from the first housing 100. This four-point fixing method ensures the stability of the connection between the BMS housing and the battery pack box.

[0098] In an optional embodiment, the number of mounting members 500 may also be two, with the two mounting members 500 located on the bottom surface of the first housing 100 and the bottom surface of the second housing 200, respectively.

[0099] In another alternative embodiment, the mounting element 500 may be provided only on the first housing 100 or only on the second housing 200; this embodiment does not impose any limitations on this.

[0100] Please refer to Figures 1 to 4 Secondly, this embodiment provides a battery management system, including a main control board 10 and a BMS housing as described in any of the first aspects, wherein the main control board 10 is disposed within the BMS housing.

[0101] The specific structure of the BMS housing has been described in the above embodiments and will not be repeated here.

[0102] The battery management system provided in this embodiment includes a main control board 10 and a BMS housing as described in any of the first aspects, wherein the main control board 10 is disposed within the BMS housing. The BMS housing includes a first housing 100, within which a first receiving cavity 110 is formed; a second housing 200, within which a second receiving cavity 210 is formed; the first receiving cavity 110 and the second receiving cavity 210 are used together to accommodate the main control board 10; the first housing 100 and the second housing 200 are slidably connected to slide into or out of the second receiving cavity 210; and a limiting member 300 is disposed on the first housing 100, the limiting member 300 being configured to lock the relative position of the first housing 100 and the second housing 200. The first housing 100 slides relative to the second housing 200, thereby adjusting the depth of the first housing 100 sliding into the second accommodating cavity 210. This allows for adjustment of the length of the entire BMS housing, flexibly adapting to main control boards 10 of different lengths. The relative positions of the first housing 100 and the second housing 200 are locked by the limiting member 300. In other words, the current positions of the first housing 100 and the second housing 200 are locked by the limiting member 300, thus maintaining the current length of the BMS housing.

[0103] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and 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 the invention is limited only by the appended claims.

Claims

1. A BMS housing, characterized in that, include: A first housing (100) is formed therein, and a first receiving cavity (110) is formed therein. The second housing (200) has a second receiving cavity (210) formed inside it. The first receiving cavity (110) and the second receiving cavity (210) are used together to accommodate the main control board (10). The first housing (100) is slidably connected to the second housing (200) so as to slide into or out of the second receiving cavity (210). A limiting member (300) is disposed on the first housing (100), and the limiting member (300) is configured to lock the relative position of the first housing (100) and the second housing (200).

2. The BMS housing according to claim 1, characterized in that, The second housing (200) has at least two limiting grooves (220), and the limiting member (300) is selectively engaged in one of the limiting grooves (220).

3. The BMS housing according to claim 1, characterized in that, At least one of the first housing (100) and the second housing (200) has a mounting groove (120) for mounting the main control board (10).

4. The BMS housing according to claim 1, characterized in that, A support member (700) is provided in at least one of the first accommodating cavity (110) and the second accommodating cavity (210), the support member (700) being used to support the main control board (10).

5. The BMS housing according to claim 1, characterized in that, It also includes a locking member (400), and a connector (600) is provided in at least one of the first accommodating cavity (110) and the second accommodating cavity (210), and the locking member (400) is disposed through the connector (600) and the main control board (10) in sequence.

6. The BMS housing according to claim 1, characterized in that, At least one of the first housing (100) and the second housing (200) is provided with a plug hole (230) for accommodating the plug end (11) of the main control board (10).

7. The BMS housing according to any one of claims 1-6, characterized in that, The first housing (100) includes an extension end (130) and a fixed end (140), the extension end (130) being slidably connected to the second housing (200), and the extension end (130) being matched with the second accommodating cavity (210).

8. The BMS housing according to claim 7, characterized in that, A slider (150) is provided on the extension end (130), and a groove (240) is provided in the second housing (200), with the slider (150) correspondingly disposed in the groove (240).

9. The BMS housing according to any one of claims 1-6, characterized in that, At least one of the first housing (100) and the second housing (200) is provided with a mounting member (500) for connecting to the battery pack housing.

10. A battery management system, characterized in that, It includes a main control board (10) and a BMS housing as described in any one of claims 1-9, wherein the main control board (10) is disposed within the BMS housing.

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