Lithium battery BMS (Battery Management System) protection plate

Abstract

The utility model relates to the technical field of BMS (Battery Management System) protection plates, and discloses a BMS protection plate which comprises a bottom plate, a lithium battery is fixedly arranged at the top of the bottom plate, and a BMS protection plate is fixedly arranged in front of the lithium battery; the limiting mechanism is fixedly mounted at the top of the lithium battery; the mounting mechanism is fixedly mounted at the top of the bottom plate, and one end of the mounting mechanism is fixedly connected with the limiting mechanism. According to the lithium battery mounting device, the top plate is driven to move downwards through the elastic potential energy of the first spring, so that the bottom plate and the lithium battery are tightly attached to complete limiting, and then a cable in the first wiring groove is clamped through the arrangement of the second spring and the first wiring groove, so that mounting operation is completed. The outer wall of the lithium battery is protected and fixed, the BMS protection plate and the lithium battery are connected with each other through the arrangement of the bunching mechanism and the mounting mechanism, bunching is neat and uniform, and the mounting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of BMS protection boards, and more specifically, to a lithium battery BMS protection board. Background Art

[0002] Lithium battery is a rechargeable battery with lithium compound as positive electrode material. It uses the migration of lithium ions between positive and negative electrodes to realize the charge and discharge process. Lithium battery has the advantages of high energy density, long life and light weight, so it is widely used in mobile devices, electric vehicles and renewable energy.

[0003] The BMS protection board is a battery management system specially designed for lithium batteries. It can monitor and control the charging and discharging process of the battery to ensure that the battery works within a safe range. It can monitor the voltage, current and temperature of the battery in real time, and control the charging and discharging according to the set parameters to extend the life and performance of the entire battery pack. At present, when installing the BMS protection board, it is usually fixed with glue or bolts. When using glue for adhesion, the protection board needs to be positioned in detail. If an installation error occurs, the BMS protection board is difficult to remove, and it is easy to damage the outer wall of the lithium battery during removal. When fixing with bolts, since the lithium battery is a battery pack composed of individual batteries, its surface is uneven and it is difficult to fix with bolts. Moreover, when installing the BMS protection board, the cables connecting it and the lithium battery are not easy to organize and are prone to connection errors, so it needs to be improved and optimized. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a lithium battery BMS protection board, which has the advantages of easy installation and convenient wiring.

[0005] To achieve the above object, the utility model provides the following technical solution: a lithium battery BMS protection plate, comprising a bottom plate, a lithium battery is fixedly arranged on the top of the bottom plate, and a BMS protection plate is fixedly arranged in front of the lithium battery;

[0006] The limiting mechanism is fixedly installed on the top of the lithium battery;

[0007] The mounting mechanism is fixedly mounted on the top of the bottom plate, and one end of the mounting mechanism is fixedly connected to the limiting mechanism;

[0008] The wire harness mechanism is fixedly mounted on one end of the mounting mechanism;

[0009] Among them, the installation mechanism includes an extension tube fixedly installed on the top of the base plate. There are two groups of extension tubes, and the two groups of extension tubes and fixed tubes are movably connected. The top of the fixed tube is fixedly connected to the top plate, and the two groups of fixed tubes are fixedly connected to the mounting plate. A BMS protection plate is fixedly installed inside the mounting plate, and a wiring harness mechanism is fixedly arranged at one end of the mounting plate.

[0010] As a preferred technical solution of the utility model, it also includes a fixing mechanism fixedly installed at one end of the limiting mechanism;

[0011] The control mechanism is fixedly installed at one end of the limiting mechanism and is fixedly connected to the fixing mechanism;

[0012] Wherein, the fixing mechanism includes a telescopic bin fixedly opened at one end of the limiting mechanism, a stop block is movably installed inside the telescopic bin, the stop block and the outer shell are elastically connected by a spring, and the outer shell is fixedly installed at one end of the limiting mechanism.

[0013] As a preferred technical solution of the utility model, the limiting mechanism includes a connecting rod fixedly installed on the top of the base plate, there are four groups of connecting rods, and they are located at the four corners of the base plate, the connecting rods and the top plate are movably connected, a fixing head is fixedly installed on the top of the connecting rod, the fixing head is located above the top plate, and the top plate and the base plate are elastically connected by a spring.

[0014] As a preferred technical solution of the utility model, there are two groups of wiring harness mechanisms, including a wiring groove one fixedly opened on the outer wall of the mounting plate, and the wiring groove one is located on both sides of the BMS protection plate, and a limit shell is fixedly installed in front of the wiring groove one.

[0015] As an optimal technical solution of the utility model, the limiting shell is fixedly provided with limiting grooves inside, and there are four groups of limiting grooves in total. A guide rod is fixedly installed inside the limiting grooves, and a pressure plate is movably sleeved on the outer wall of the guide rod, and the pressure plate and the limiting shell are elastically connected by spring 2.

[0016] As a preferred technical solution of the utility model, a second wiring groove is fixedly opened at one end of the mounting plate, the second wiring groove is located at the bottom of the BMS protection plate, and a clamp is fixedly installed on the second wiring groove, and there are three groups of clamps.

[0017] As a preferred technical solution of the utility model, there are two groups of telescopic bins, both of which are opened on both sides of the top plate, and there are two groups of outer shells, which are fixedly installed on both sides of the top plate.

[0018] As a preferred technical solution of the utility model, the control mechanism includes a fixing rod fixedly connected to the stop block, one end of the fixing rod penetrates the outer wall of the housing and is fixedly connected to the pull rod.

[0019] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0020] 1. The utility model drives the top plate downward through the elastic potential energy of spring 1, so that the bottom plate and the lithium battery fit closely and complete the limit, and then clamps the cables inside the wiring slot 1 through the setting of spring 2 and wiring slot 1 to complete the installation operation. Compared with the traditional device, the device protects and fixes the outer wall of the lithium battery through the setting of the limiting mechanism, and then connects the BMS protection board and the lithium battery to each other through the setting of the wiring mechanism and the installation mechanism, and the wiring is neat and uniform, which improves the installation efficiency.

[0021] 2. The utility model uses the elastic potential energy of spring three to reset the stop block after the top plate is installed, and cooperates with the bottom plate to fix the top of the lithium battery. Compared with the traditional device, the device fixes the lithium battery through the setting of the fixing mechanism and the control mechanism, and is quick to disassemble and easy to install, thereby improving the installation efficiency of the BMS protection board. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the connecting rod structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the fixed cylinder structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the limit shell structure of the utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the mounting plate of the utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the pressing plate of the utility model;

[0028] Figure 7 It is a schematic diagram of the block structure of the utility model.

[0029] In the figure: 1. bottom plate; 2. lithium battery; 3. connecting rod; 4. top plate; 5. fixing head; 6. spring 1; 7. fixing tube; 8. extension tube; 9. mounting plate; 10. BMS protection plate; 11. wiring slot 1; 12. limiting shell; 13. limiting slot; 14. guide rod; 15. spring 2; 16. pressure plate; 17. wiring slot 2; 18. clamp; 19. telescopic bin; 20. block; 21. fixing rod; 22. spring 3; 23. outer shell; 24. pull rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] like Figures 1 to 7 As shown, the utility model provides a lithium battery BMS protection board, including a bottom plate 1, a lithium battery 2 is fixedly arranged on the top of the bottom plate 1, and a BMS protection board 10 is fixedly arranged in front of the lithium battery 2;

[0032] A limiting mechanism, fixedly mounted on the top of the lithium battery 2;

[0033] The mounting mechanism is fixedly mounted on the top of the bottom plate 1, and one end of the mounting mechanism is fixedly connected to the limiting mechanism;

[0034] The wire harness mechanism is fixedly mounted on one end of the mounting mechanism;

[0035] Among them, the installation mechanism includes an extension tube 8 fixedly installed on the top of the base plate 1. There are two groups of extension tubes 8, and the two groups of extension tubes 8 are movably connected with the fixed tube 7. The top of the fixed tube 7 is fixedly connected to the top plate 4. The two groups of fixed tubes 7 are fixedly connected to the mounting plate 9. The BMS protection plate 10 is fixedly installed inside the mounting plate 9, and a wiring harness mechanism is fixedly arranged at one end of the mounting plate 9.

[0036] When the lithium battery 2 and the BMS protection board 10 need to be installed, the staff first fixes the top plate 4, and then the staff passes one end of the lithium battery 2 through the top plate 4, so that the bottom of the lithium battery 2 and the bottom plate 1 are in conflict with each other. At this time, the movement of the lithium battery 2 causes the block 20 to be stressed, forcing the block 20 to enter the telescopic compartment 19, and at this time, the spring three 22 is compressed, and the lithium battery 2 drives the bottom plate 1 downward, and at the same time, the connecting rod 3 moves downward along the top plate 4. At this time, the spring one 6 is stretched, and when the top of the lithium battery 2 When it is below the stop block 20, the staff releases the top plate 4. At this time, the elastic potential energy of the spring three 22 resets the stop block 20 to fix the top of the lithium battery 2, and the elastic potential energy of the spring one 6 drives the top plate 4 to move downward, so that the bottom plate 1 and the lithium battery 2 fit tightly together to complete the limiting and fixing. When the lithium battery 2 needs to be removed, the staff pulls out the pull rod 24 to allow the fixing rod 21 to drive the stop block 20 into the telescopic compartment 19. At this time, the lithium battery 2 loses its fixation and can be taken out.

[0037] When the lithium battery 2 is fixed, the staff performs wiring operations on the lithium battery 2. After the wiring is completed, the staff lifts the pressure plate 16. At this time, the pressure plate 16 moves upward along the guide rod 14, and the spring 2 15 is compressed. One end of the staff's cable passes through the wiring groove 11 and is connected to the BMS protection board 10. Then the staff releases the pressure plate 16. At this time, the elastic potential energy of the spring 2 15 drives the pressure plate 16 downward to clamp the cables inside the wiring groove 11. Then the staff passes another set of cables through the clamp 18, which is located inside the wiring groove 2 17 and connected to the BMS protection board 10 to complete the installation operation.

[0038] The elastic potential energy of spring 16 drives the top plate 4 to move downward, so that the bottom plate 1 and the lithium battery 2 fit closely and the limit is completed. Then, the spring 2 15 and the wiring slot 11 are set to clamp the cables inside the wiring slot 11 to complete the installation operation. Compared with the traditional device, the device protects and fixes the outer wall of the lithium battery 2 through the setting of the limiting mechanism, and then connects the BMS protection board 10 and the lithium battery 2 to each other through the setting of the wiring mechanism and the installation mechanism, and the wiring is neat and uniform, thereby improving the installation efficiency.

[0039] The invention also includes a fixing mechanism fixedly installed at one end of the limiting mechanism;

[0040] The control mechanism is fixedly installed at one end of the limiting mechanism and is fixedly connected to the fixing mechanism;

[0041] Among them, the fixing mechanism includes a telescopic bin 19 fixedly opened at one end of the limiting mechanism, and a stop block 20 is movably installed inside the telescopic bin 19. The stop block 20 and the outer shell 23 are elastically connected by a spring 22, and the outer shell 23 is fixedly installed at one end of the limiting mechanism.

[0042] The staff passes one end of the lithium battery 2 through the top plate 4, so that the bottom of the lithium battery 2 and the bottom plate 1 are in contact with each other. At this time, the movement of the lithium battery 2 causes the block 20 to be subjected to force, forcing the block 20 to enter the telescopic compartment 19, and at this time, the spring three 22 is compressed. When the top of the lithium battery 2 is located below the block 20, the staff releases the top plate 4. At this time, due to the elastic potential energy of the spring three 22, the block 20 is reset to fix the top of the lithium battery 2.

[0043] After the top plate 4 is installed through the elastic potential energy of the spring three 22, the stop block 20 is reset and cooperates with the bottom plate 1 to fix the top of the lithium battery 2. Compared with the traditional device, the device fixes the lithium battery 2 through the setting of the fixing mechanism and the control mechanism, and is quick to disassemble and easy to install, thereby improving the installation efficiency of the BMS protection board 10.

[0044] Among them, the limiting mechanism includes a connecting rod 3 fixedly installed on the top of the bottom plate 1. There are four groups of connecting rods 3, which are located at the four corners of the bottom plate 1. The connecting rods 3 and the top plate 4 are movably connected. A fixing head 5 is fixedly installed on the top of the connecting rod 3. The fixing head 5 is located above the top plate 4, and the top plate 4 and the bottom plate 1 are elastically connected by a spring 6.

[0045] The staff first fixes the top plate 4, and then passes one end of the lithium battery 2 through the top plate 4, so that the bottom of the lithium battery 2 and the bottom plate 1 are in conflict with each other, and the lithium battery 2 drives the bottom plate 1 downward, and at the same time, the connecting rod 3 moves downward along the top plate 4. At this time, the spring 6 is stretched. When the staff releases the top plate 4, the elastic potential energy of the spring 6 drives the top plate 4 to move downward, so that the bottom plate 1 and the lithium battery 2 fit closely, completing the limiting operation.

[0046] There are two groups of wiring harness mechanisms, including a wiring slot 11 fixedly opened on the outer wall of the mounting plate 9, and the wiring slot 11 is located on both sides of the BMS protection plate 10, and a limit shell 12 is fixedly installed in front of the wiring slot 11.

[0047] The staff lifts the pressure plate 16, and the pressure plate 16 moves upward along the guide rod 14, and the spring 2 15 is compressed. One end of the staff's cable passes through the wiring slot 11 and is connected to the BMS protection board 10. Then the staff releases the pressure plate 16. At this time, the elastic potential energy of the spring 2 15 drives the pressure plate 16 downward to clamp the cable inside the wiring slot 11.

[0048] Among them, the limiting shell 12 is fixedly provided with limiting grooves 13, and there are four groups of limiting grooves 13. A guide rod 14 is fixedly installed inside the limiting shell 12. A pressure plate 16 is movably sleeved on the outer wall of the guide rod 14, and the pressure plate 16 and the limiting shell 12 are elastically connected by a spring 15.

[0049] Among them, a second wiring groove 17 is fixedly opened at one end of the mounting plate 9, and the second wiring groove 17 is located at the bottom of the BMS protection plate 10, and a clamp 18 is fixedly installed on the second wiring groove 17, and there are three groups of clamps 18 in total.

[0050] The staff passes another set of cables through the clamp 18 and inside the second wiring slot 17, and connects them to the BMS protection board 10 to complete the installation work.

[0051] There are two groups of telescopic bins 19 , both of which are opened on both sides of the top plate 4 . There are two groups of outer shells 23 , both of which are fixedly installed on both sides of the top plate 4 .

[0052] The control mechanism includes a fixing rod 21 fixedly connected to the stop block 20 . One end of the fixing rod 21 penetrates the outer wall of the housing 23 and is fixedly connected to the pull rod 24 .

[0053] When the lithium battery 2 needs to be removed, the staff pulls out the pull rod 24 so that the fixing rod 21 drives the stop block 20 into the telescopic compartment 19. At this time, the lithium battery 2 loses its fixation and can be taken out.

[0054] The working principle and use process of this utility model:

[0055] When the lithium battery 2 and the BMS protection board 10 need to be installed, the staff first fixes the top plate 4, and then the staff passes one end of the lithium battery 2 through the top plate 4, so that the bottom of the lithium battery 2 and the bottom plate 1 are in conflict with each other. At this time, the movement of the lithium battery 2 causes the block 20 to be stressed, forcing the block 20 to enter the telescopic compartment 19, and at this time, the spring three 22 is compressed, and the lithium battery 2 drives the bottom plate 1 downward, and at the same time, the connecting rod 3 moves downward along the top plate 4. At this time, the spring one 6 is stretched, and when the top of the lithium battery 2 When it is below the stop block 20, the staff releases the top plate 4. At this time, the elastic potential energy of the spring three 22 resets the stop block 20 to fix the top of the lithium battery 2, and the elastic potential energy of the spring one 6 drives the top plate 4 to move downward, so that the bottom plate 1 and the lithium battery 2 fit tightly together to complete the limiting and fixing. When the lithium battery 2 needs to be removed, the staff pulls out the pull rod 24 to allow the fixing rod 21 to drive the stop block 20 into the telescopic compartment 19. At this time, the lithium battery 2 loses its fixation and can be taken out.

[0056] When the lithium battery 2 is fixed, the staff performs wiring operations on the lithium battery 2. After the wiring is completed, the staff lifts the pressure plate 16. At this time, the pressure plate 16 moves upward along the guide rod 14, and the spring 2 15 is compressed. One end of the staff's cable passes through the wiring groove 11 and is connected to the BMS protection board 10. Then the staff releases the pressure plate 16. At this time, the elastic potential energy of the spring 2 15 drives the pressure plate 16 downward to clamp the cables inside the wiring groove 11. Then the staff passes another set of cables through the clamp 18, which is located inside the wiring groove 2 17 and connected to the BMS protection board 10 to complete the installation operation.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery BMS protection board, comprising a bottom plate (1), characterized in that: A lithium battery (2) is fixedly arranged on the top of the bottom plate (1), and a BMS protection plate (10) is fixedly arranged in front of the lithium battery (2); A limiting mechanism, fixedly mounted on the top of the lithium battery (2); A mounting mechanism, fixedly mounted on the top of the base plate (1), one end of which is fixedly connected to the limiting mechanism; The wire harness mechanism is fixedly mounted on one end of the mounting mechanism; The mounting mechanism comprises an extension tube (8) fixedly mounted on the top of the base plate (1), the extension tube (8) having two groups, and the two groups of the extension tubes (8) are movably sleeved with the fixed tubes (7), the top of the fixed tube (7) is fixedly connected to the top plate (4), the two groups of the fixed tubes (7) are fixedly connected to the mounting plate (9), a BMS protection plate (10) is fixedly mounted inside the mounting plate (9), and a wiring harness mechanism is fixedly arranged at one end of the mounting plate (9).

2. The lithium battery BMS protection board according to claim 1, characterized in that: It also includes a fixing mechanism fixedly installed at one end of the limiting mechanism; The control mechanism is fixedly installed at one end of the limiting mechanism and is fixedly connected to the fixing mechanism; The fixing mechanism comprises a telescopic bin (19) fixedly opened at one end of the limiting mechanism, a stopper (20) is movably installed inside the telescopic bin (19), the stopper (20) and the outer shell (23) are elastically connected via a spring (22), and the outer shell (23) is fixedly installed at one end of the limiting mechanism.

3. The lithium battery BMS protection board according to claim 1, characterized in that: The limiting mechanism comprises a connecting rod (3) fixedly mounted on the top of the bottom plate (1), wherein there are four groups of the connecting rods (3) located at the four corners of the bottom plate (1), wherein the connecting rods (3) and the top plate (4) are movably sleeved, wherein a fixing head (5) is fixedly mounted on the top of the connecting rod (3), wherein the fixing head (5) is located above the top plate (4), and the top plate (4) and the bottom plate (1) are elastically connected via a spring (6).

4. The lithium battery BMS protection board according to claim 1, characterized in that: There are two groups of wiring harness mechanisms, including a wiring slot one (11) fixedly opened on the outer wall of the mounting plate (9), and the wiring slot one (11) is located on both sides of the BMS protection plate (10), and a limit shell (12) is fixedly installed in front of the wiring slot one (11).

5. The lithium battery BMS protection board according to claim 4, characterized in that: The limiting shell (12) is fixedly provided with limiting grooves (13), and there are four groups of limiting grooves (13). A guide rod (14) is fixedly installed inside the limiting shell, and a pressure plate (16) is movably sleeved on the outer wall of the guide rod (14), and the pressure plate (16) and the limiting shell (12) are elastically connected via a second spring (15).

6. The lithium battery BMS protection board according to claim 4, characterized in that: A second wiring groove (17) is fixedly provided at one end of the mounting plate (9), the second wiring groove (17) is located at the bottom of the BMS protection plate (10), and a clamp (18) is fixedly installed on the second wiring groove (17), and there are three groups of clamps (18).

7. The lithium battery BMS protection board according to claim 2, characterized in that: There are two groups of telescopic bins (19), both of which are opened on both sides of the top plate (4); there are two groups of outer shells (23), which are fixedly installed on both sides of the top plate (4).

8. The lithium battery BMS protection board according to claim 2, characterized in that: The control mechanism comprises a fixing rod (21) fixedly connected to the stop block (20), one end of the fixing rod (21) penetrates the outer wall of the housing (23) and is fixedly connected to the pull rod (24).

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