BMS installation components and battery module

Abstract

This application relates to the field of battery technology, and in particular to a BMS mounting assembly and a battery module. The BMS mounting assembly includes two housings and a circuit board. The two housings are joined together along a first preset direction. A first mounting protrusion is formed inside the first housing, and the first mounting protrusion has a plug-in protrusion. The circuit board is sleeved on the outside of the first mounting protrusion. A second mounting protrusion is formed inside the second housing, and the second mounting protrusion has a plug-in hole. When the two housings are joined together, the plug-in protrusion can be plugged into the plug-in hole, and the two mounting protrusions press against opposite sides of the circuit board along the first preset direction. Therefore, this application changes the mounting method of the circuit board. By fastening the two housings together, the circuit board is pressed simultaneously, saving assembly steps and eliminating the need for screws. This improves operational convenience, greatly increases production efficiency, and reduces the number of screws, thus helping to reduce costs.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a BMS mounting component and a battery module. Background Technology

[0002] Battery Management System (BMS), commonly known as a battery nanny or battery manager, is primarily designed for the intelligent management and maintenance of individual battery cells. It monitors battery status, prevents overcharging and over-discharging, and thus extends battery life. Current BMS systems typically consist of an upper casing, a lower casing, and a circuit board. The circuit board is secured to the lower casing with screws, and finally, the upper and lower casings are fixed together. This adds a screw-locking step, reducing production efficiency and increasing the number of screws required. Utility Model Content

[0003] The purpose of this application is to provide a BMS mounting component and battery module, which to some extent solves the technical problem in the prior art where, during the assembly of the BMS battery management system, the circuit board is fixed to the lower shell with screws, and then the upper shell is fixed together with the lower shell. This adds a screw-locking step, reduces production efficiency, and also increases the number of screws.

[0004] This application provides a BMS mounting assembly, including: a first housing, a second housing, and a circuit board; wherein, the first housing and the second housing are joined together along a first preset direction; a first mounting protrusion is formed inside the first housing, the first mounting protrusion is formed with a plug-in protrusion, and the circuit board is sleeved on the outside of the first mounting protrusion.

[0005] The second housing has a second mounting protrusion and a plug hole. When the first housing and the second housing are joined together along the first preset direction, the plug hole is inserted into the plug hole, and the first mounting protrusion and the second mounting protrusion press against the opposite sides of the circuit board along the first preset direction.

[0006] In the above technical solution, the BMS mounting assembly further includes a first buffer pad, and the first buffer pad is sleeved on the outside of the plug-in protrusion through a first through hole thereon, and is located between the first mounting protrusion and the circuit board along the first preset direction.

[0007] In any of the above technical solutions, the first buffer pad is further made of foam or plastic.

[0008] In any of the above technical solutions, the BMS mounting assembly further includes a second buffer pad, which is sleeved on the outside of the insertion protrusion through a second through hole and is located between the second mounting protrusion and the circuit board along the first preset direction.

[0009] In any of the above technical solutions, the second cushioning pad is further made of foam or plastic.

[0010] In any of the above technical solutions, the first box and the second box are detachably connected by a snap fastener.

[0011] In any of the above technical solutions, the first box and the second box are further detachably connected by fastening components.

[0012] In any of the above technical solutions, at least one of the first box body and the second box body has a connecting ear formed on its outer wall, and the connecting ear has a mounting hole.

[0013] In any of the above technical solutions, the insertion hole is further described as a circular hole or a polygonal hole, and the insertion protrusion is adapted to the insertion hole.

[0014] In any of the above technical solutions, the second mounting protrusion and the insertion hole are both arranged along the first preset direction, and along the first preset direction, the insertion hole is formed at one end of the second mounting protrusion near the first mounting protrusion.

[0015] In any of the above technical solutions, both the first mounting protrusion and the plugging protrusion are arranged along the first preset direction, and along the first preset direction, the plugging protrusion is formed at one end of the first mounting protrusion near the second mounting protrusion.

[0016] In any of the above technical solutions, the insertion protrusion and the first mounting protrusion form a two-stage step structure arranged along the first preset direction, so that the outer periphery of the insertion protrusion forms a pressing step surface, which is used to press the circuit board.

[0017] This application also provides a battery module including the BMS mounting component described in any of the above technical solutions, and thus has all the beneficial technical effects of the BMS mounting component, which will not be repeated here.

[0018] Compared with the prior art, the beneficial effects of this application are as follows:

[0019] The BMS mounting component provided in this application modifies the mounting method of the circuit board. A first mounting protrusion is provided in the first housing, and a plug-in protrusion is provided on the first mounting protrusion. In this way, the circuit board can be fitted onto the plug-in protrusion, thereby restricting the degree of freedom of the circuit board in the X and Y directions. When the first housing and the second housing are joined together, the circuit board is pressed by the first mounting protrusion in the first housing and the second mounting protrusion in the second housing, thereby restricting the degree of freedom in the Z direction.

[0020] As can be seen, the newly designed first and second boxes of this application restrict the degrees of freedom of the circuit board in the X, Y, and Z directions, thereby achieving the fixation of the circuit board. Moreover, there is no need to use bolts to fix the circuit board, making assembly simple and easy to operate, greatly improving production efficiency, and reducing the number of bolts, which helps to reduce costs. Furthermore, the snapping of the two boxes and the fixing of the circuit board are completed simultaneously, saving assembly steps and further improving production efficiency. In addition, during the snapping of the first and second boxes, the interlocking protrusions and interlocking holes cooperate to play a role in installation positioning, ensuring that the first and second boxes are quickly installed in place. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 An exploded view of the BMS installation component provided in the embodiments of this application;

[0023] Figure 2 An assembly diagram of the BMS installation components provided in the embodiments of this application;

[0024] Figure 3 This is a schematic diagram of the structure of the first box body provided in an embodiment of this application;

[0025] Figure 4 Another structural schematic diagram of the first box body provided in the embodiments of this application;

[0026] Figure 5 An assembly diagram of the first mounting protrusion, the insertion protrusion, and the circuit board provided for embodiments of this application;

[0027] Figure 6 This is a schematic diagram of the structure of the second box provided in an embodiment of this application;

[0028] Figure 7This is a cross-sectional view of the BMS installation component provided in an embodiment of this application.

[0029] Figure label:

[0030] 1-First housing, 11-First mounting protrusion, 12-Insertion protrusion, 13-Connecting ear, 14-Mounting hole, 15-Snap fastener, 2-Second housing, 21-Second mounting protrusion, 22-Insertion hole, 23-Slot, 3-Circuit board, 4-First buffer pad, 5-Second buffer pad, a-First preset direction. Detailed Implementation

[0031] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0032] The components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0033] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] The following reference Figures 1 to 7 This application describes a BMS mounting component and battery module according to some embodiments.

[0037] Example 1

[0038] See Figures 1 to 6 As shown, an embodiment of this application provides a BMS mounting assembly, including: a first housing 1, a second housing 2, and a circuit board 3; wherein, the first housing 1 and the second housing 2 are joined together along a first preset direction a; a first mounting protrusion 11 is formed inside the first housing 1, the first mounting protrusion 11 is formed with a plugging protrusion 12, and the circuit board 3 is sleeved on the outside of the first mounting protrusion 11.

[0039] The second housing 2 has a second mounting protrusion 21, and the second mounting protrusion 21 has a plug hole 22. When the first housing 1 and the second housing 2 are joined together along the first preset direction a, the plug protrusion 12 can be inserted into the plug hole 22, and the first mounting protrusion 11 and the second mounting protrusion 21 press against the opposite sides of the circuit board 3 along the first preset direction a.

[0040] As can be seen from the structure described above, the existing circuit board mounting method has been modified in this application. A first mounting protrusion 11 is provided in the first housing 1, and a plugging protrusion 12 is provided on the first mounting protrusion 11. In this way, the circuit board 3 can be fitted onto the plugging protrusion 12, thereby restricting the X and Y directions of freedom of the circuit board 3. When the first housing 1 and the second housing 2 are connected together, the circuit board 3 is pressed by the first mounting protrusion 11 in the first housing 1 and the second mounting protrusion 21 in the second housing 2, thereby restricting the Z direction of freedom.

[0041] As can be seen, the newly designed first box 1 and second box 2 of this application restrict the degrees of freedom of the circuit board 3 in the X, Y and Z directions, thereby achieving the fixation of the circuit board 3. Moreover, there is no need to use bolts to fix the circuit board 3, making assembly simple and easy to operate, greatly improving production efficiency, and reducing the number of bolts, which helps to reduce costs. In addition, the snapping of the two boxes and the fixing of the circuit board 3 are completed simultaneously, saving assembly steps and further improving production efficiency. Furthermore, during the snapping of the first box 1 and the second box 2, the insertion protrusion 12 and the insertion hole 22 cooperate to play a role in installation positioning, ensuring that the first box 1 and the second box 2 can be quickly installed in place.

[0042] Furthermore, preferably, the first preset direction a is the height direction of the first housing 1, the first mounting protrusion 11, the insertion protrusion 12, the second housing 2, and the second mounting protrusion 21, and the first preset direction a is the same as the thickness direction of the circuit board 3. Of course, it is not limited to this, and can be selected according to actual needs.

[0043] In this embodiment, preferably, as follows: Figure 1 and Figure 4 As shown, the BMS mounting assembly also includes a first buffer pad 4, which is fitted onto the outside of the insertion protrusion 12 through a first through hole and is located between the first mounting protrusion 11 and the circuit board 3 along a first preset direction a.

[0044] As can be seen from the structure described above, a first buffer pad 4 is provided between the first mounting protrusion 11 and the circuit board 3 to protect the circuit board 3 and prevent damage to it. Of course, the first buffer pad 4 may not be provided, depending on the actual needs.

[0045] In this embodiment, preferably, the first cushioning pad 4 is made of foam or plastic, which meets the needs of cushioning and protection, and is inexpensive, thus helping to reduce costs. Of course, the first cushioning pad 4 can also be made of other materials, depending on the actual needs.

[0046] In this embodiment, preferably, as follows: Figure 1 and Figure 5 As shown, the BMS mounting assembly also includes a second buffer pad 5, which is fitted onto the outside of the insertion protrusion 12 through a second through hole and is located between the second mounting protrusion 21 and the circuit board 3 along a first preset direction a.

[0047] As can be seen from the structure described above, a second buffer pad 5 is provided between the second mounting protrusion 21 and the circuit board 3 to protect the circuit board 3 and prevent damage to it. Of course, the second buffer pad 5 may not be provided, depending on the actual needs.

[0048] In this embodiment, the second cushioning pad 5 is preferably made of foam or plastic, which meets the needs of cushioning and protection, and is inexpensive, thus helping to reduce costs. Of course, the second cushioning pad 5 can also be made of other materials, depending on the actual needs.

[0049] In this embodiment, preferably, as follows: Figure 3 and Figure 6 As shown, the first box 1 and the second box 2 are detachably connected by a buckle 15. The first box 1 and the second box 2 can be directly fastened together and the buckle 15 can be fastened. The operation is more convenient and it is a detachable connection method, which is convenient for later installation and disassembly.

[0050] Furthermore, preferably, the first box body 1 is provided with a buckle 15 and the second box body 2 is provided with a slot 23. Of course, it is not limited to this, the first box body 1 can also be provided with a slot 23 and the second box body 2 can be provided with a buckle 15.

[0051] Furthermore, preferably, the buckle 15 is disposed on the inner wall of the first box 1, and the slot 23 is disposed on the inner wall of the second box 2. In this way, when the two boxes are fastened together, the buckle 15 will not be exposed, which is more aesthetically pleasing. Of course, it is not limited to this. The buckle 15 and the slot 23 can also be disposed on the outside of the corresponding boxes, depending on the actual needs.

[0052] It should be noted that the connection between the first box 1 and the second box 2 is not limited to the connection of the buckle 15. Other connection methods can also be used. For example, the first box 1 and the second box 2 can also be connected by fastening components such as screws or bolts, which is also a kind of detachable connection, which is convenient for later installation and disassembly.

[0053] In this embodiment, preferably, as follows: Figure 2 As shown, at least one of the first box body 1 and the second box body 2 has a connecting ear 13 formed on its outer wall, and the connecting ear 13 has a mounting hole 14.

[0054] As can be seen from the structure described above, the connecting ear 13 can be installed together with the target ground and locked with screws or bolts, thereby fixing the BMS mounting component to the target ground. The operation is simple, convenient, time-saving and labor-saving, and it is a detachable connection method, which facilitates subsequent disassembly and maintenance.

[0055] Furthermore, preferably, a connecting ear 13 is provided on the first housing 1. Of course, it is not limited to this. The connecting ear 13 can also be provided on the second housing 2, or the connecting ear 13 can be provided on both the first housing 1 and the second housing 2. The specific choice depends on the actual needs.

[0056] Furthermore, preferably, connecting ears 13 are provided on both opposite sides of the first housing 1, which can ensure the stability and firmness of the connection between the BMS mounting component and the target site. Of course, this is not the only option.

[0057] In this embodiment, preferably, as follows: Figure 3 and Figure 6 As shown, the insertion hole 22 is a circular hole, and the insertion protrusion 12 is adapted to the insertion hole 22. That is to say, the insertion protrusion 12 is an adapted cylinder.

[0058] As can be seen from the structure described above, the insertion hole 22 is designed as a circle and the insertion protrusion 12 is designed as a cylinder, which facilitates processing and manufacturing as well as subsequent assembly.

[0059] Of course, the shapes of the insertion hole 22 and the insertion protrusion 12 are not limited to those described above, and other shapes can also be used. For example, the insertion hole 22 can be designed as a polygonal hole, and the insertion protrusion 12 can be designed as a matching polygonal prism structure, which can also play a role in preventing rotation.

[0060] Furthermore, it should be noted that in this embodiment, preferably, both the first insertion protrusion 12 and the second insertion protrusion 12 are cylindrical structures with regular shapes, facilitating processing and manufacturing. Of course, they are not limited to this; both can also be prisms or other structures, depending on actual needs.

[0061] In this embodiment, preferably, as follows: Figure 7 As shown, the second mounting protrusion 21 and the insertion hole 22 are both arranged along the first preset direction a, and along the first preset direction a, the insertion hole 22 is formed at the end of the second mounting protrusion 21 near the first mounting protrusion 11.

[0062] Both the first mounting protrusion 11 and the insertion protrusion 12 are arranged along the first preset direction a, and along the first preset direction a, the insertion protrusion 12 is formed at one end of the first mounting protrusion 11 near the second mounting protrusion 21.

[0063] As can be seen from the structure described above, the insertion protrusion 12 is located at one end of the first mounting protrusion 11 near the second mounting protrusion 21, and the insertion hole 22 is located at one end of the second mounting protrusion 21 near the first mounting protrusion 11. In this way, when the first box 1 and the second box 2 are fastened together, the insertion protrusion 12 can be inserted into the insertion hole 22 immediately, realizing rapid assembly and positioning, avoiding interference, and improving the convenience of assembly.

[0064] In this embodiment, preferably, as follows: Figure 3 As shown, the insertion protrusion 12 and the first mounting protrusion 11 form a two-stage step structure arranged along the first preset direction a, so that the outer periphery of the insertion protrusion 12 forms a pressing step surface, which is used to press the circuit board 3.

[0065] As can be seen from the structure described above, the diameter of the insertion protrusion 12 is smaller than the diameter of the first mounting protrusion 11, thus forming a pressing step surface on the outer periphery of the insertion protrusion 12, which can be used to support and press the circuit board 3.

[0066] In addition, it should be noted that the end face of the second mounting protrusion 21 near the first mounting protrusion 11 is also a pressing surface, and it cooperates with the aforementioned pressing step surface to press the opposite sides of the circuit board 3 along the first preset direction a.

[0067] In this embodiment, preferably, as follows: Figure 3 As shown, the insertion protrusion 12 and the first mounting protrusion 11 can be a single integrated structure, resulting in high overall strength and making the connection point less prone to damage. However, this is not the only possibility.

[0068] In this embodiment, preferably, as follows: Figure 3 As shown, the first mounting protrusion 11 and the first box 1 can be an integral structure or a separate structure, which are then assembled and connected together later, depending on the actual needs.

[0069] In this embodiment, preferably, as follows: Figure 6 As shown, the second mounting protrusion 21 and the second box 2 can be an integral structure or a separate structure, which will be assembled and connected together later, depending on the actual needs.

[0070] Example 2

[0071] Embodiment 2 of this application also provides a battery module, including the BMS mounting component described in Embodiment 1 above. Therefore, it has all the beneficial technical effects of the BMS mounting component, and the same technical features and beneficial effects will not be repeated here.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A BMS installation component, characterized in that, include: A first box, a second box, and a circuit board; wherein the first box and the second box are joined together along a first preset direction; a first mounting protrusion is formed inside the first box, the first mounting protrusion has an insertion protrusion, and the circuit board is sleeved on the outside of the first mounting protrusion. The second housing has a second mounting protrusion and a plug hole. When the first housing and the second housing are joined together along the first preset direction, the plug hole is inserted into the plug hole, and the first mounting protrusion and the second mounting protrusion press against the opposite sides of the circuit board along the first preset direction.

2. The BMS installation component according to claim 1, characterized in that, The BMS mounting assembly further includes a first buffer pad, which is fitted onto the outside of the insertion protrusion through a first through hole and is located between the first mounting protrusion and the circuit board along the first preset direction.

3. The BMS installation component according to claim 2, characterized in that, The first cushioning pad is made of foam or plastic.

4. The BMS installation component according to claim 1, characterized in that, The BMS mounting assembly further includes a second buffer pad, which is fitted onto the outside of the insertion protrusion through a second through hole and is located between the second mounting protrusion and the circuit board along the first preset direction.

5. The BMS installation component according to claim 4, characterized in that, The second cushioning pad is made of foam or plastic.

6. The BMS installation component according to claim 1, characterized in that, The first box and the second box are detachably connected by a snap-fit ​​mechanism; or The first box and the second box are detachably connected by fastening components.

7. The BMS installation component according to claim 1, characterized in that, The outer wall of at least one of the first box and the second box has a connecting ear, and the connecting ear has a mounting hole.

8. The BMS installation component according to claim 1, characterized in that, The insertion hole is a circular hole or a polygonal hole, and the insertion protrusion is adapted to the insertion hole.

9. The BMS installation component according to any one of claims 1 to 8, characterized in that, Both the second mounting protrusion and the insertion hole are disposed along the first preset direction, and along the first preset direction, the insertion hole is formed at one end of the second mounting protrusion near the first mounting protrusion; and / or Both the first mounting protrusion and the insertion protrusion are disposed along the first preset direction, and along the first preset direction, the insertion protrusion is formed at one end of the first mounting protrusion near the second mounting protrusion; and / or The insertion protrusion and the first mounting protrusion form a two-stage stepped structure along the first preset direction, so that the outer periphery of the insertion protrusion forms a pressing step surface, which is used to press the circuit board.

10. A battery module, characterized in that, Includes the BMS installation component as described in any one of claims 1 to 9.

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