Battery module maintenance clamp integrating safety interlock and active equalization

Abstract

The utility model relates to battery module maintenance fixture technical field, concretely is a kind of integrated safety interlock and active equalization's battery module maintenance fixture, including two baffle, common fixed clamping plate and connecting plate between two baffle, common sliding installation is slidably mounted on two baffle, the fixed contact piece in the sliding frame, the contact piece is between two baffle;Between the contact piece and connecting plate is equipped with control mechanism. According to the need of the present application, the clamping of the upper end of the battery on both sides is quickly realized, and can be fully fixed, can also adjust the position of connecting assembly as required to be in contact with the electrode of battery, can fully adapt to multiple electrodes in battery, and guarantee the firmness of connection, so as to achieve the safety logic that low-voltage sampling connection is established first, and high-voltage loop can be connected.

Description

Technical Field

[0001] This utility model relates to the field of battery module maintenance fixture technology, and in particular to a battery module maintenance fixture that integrates safety interlocking and active balancing. Background Technology

[0002] With the increasing use of cylindrical nickel-metal hydride (NiMH) batteries in the market, and given their higher self-discharge rate compared to lithium-ion batteries, it is necessary to perform recharging maintenance on NiMH batteries, especially NiMH battery modules, during long-term storage to prevent battery failures due to self-discharge. While recharging maintenance of a single cell is relatively simple, there are currently no suitable products on the market for maintaining the entire battery pack module together.

[0003] The battery module charging and maintenance fixture, with announcement number CN210692713U, has L-shaped first positioning blocks at both ends of one side of the top of its base frame, with the vertical portions of the first positioning blocks facing outwards. Second positioning blocks are located at both ends of the other side of the top of the base frame. Several probe assemblies are fitted one-to-one into the probe assembly mounting holes of a probe bracket, and the probe assembly fixing plates are fixed to the probe bracket. One probe bracket is mounted horizontally across the top of the outward-facing vertical portions of two first positioning blocks with the probe tips facing inwards. Another probe bracket is mounted horizontally across the outward-facing surfaces of two second positioning blocks with the probe tips facing inwards, and the horizontal plane of the probe assembly on the first probe bracket is lower than the horizontal plane of the probe assembly on the other probe bracket. The probe tips of the probe assemblies are in direct contact with the corresponding positive and negative terminals of the battery module. This utility model has a simple structure, low cost, and is easy to install and disassemble.

[0004] The above technical solution cannot be quickly adjusted as needed and cannot guarantee stability after connection with the electrode, so it needs to be improved. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a battery module maintenance fixture that integrates safety interlocking and active balancing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A battery module maintenance fixture integrating safety interlock and active balancing includes two partitions, with a clamping plate and a connecting plate fixed between the two partitions. A sliding frame is slidably mounted on both partitions, and an abutment is fixed inside the sliding frame, with the abutment located between the two partitions. An adjustment mechanism is provided between the contacting component and the connecting plate; Each of the two partitions has a movable slot on one side, and multiple movable frames are connected through the two movable slots. A connecting component is slidably installed in the movable frame, and the connecting component is equipped with a telescopic positioning mechanism, which is connected to the two movable slots.

[0007] Compared with the prior art, this application can quickly clamp the upper two sides of the battery as needed and fix it firmly. It can also adjust the position of the connecting components as needed to make contact with the battery electrodes. It can fully adapt to multiple electrodes in the battery and ensure the connection is firm, so as to achieve the safety logic of establishing the low-voltage sampling connection first and then connecting the high-voltage circuit.

[0008] Preferably, the upper ends of the clamping plate and the connecting plate are flush with the upper ends of the two partitions; The lower end of the clamping plate is flush with the lower end of the abutting member.

[0009] Furthermore, to facilitate full contact with the battery, the lower end of the separator can contact the upper end of the battery module, and the clamp and contact piece can contact the upper sides of the battery module. Moreover, corresponding plug-in pieces can be provided on the contact piece to connect with the plug-in interface on the battery module.

[0010] Preferably, a positioning bolt is screwed onto the sliding frame, and the positioning bolt abuts against one of the partitions.

[0011] Furthermore, it makes it easier to define the position of the sliding frame.

[0012] Preferably, the control mechanism includes a mounting frame, in which two gear components are rotatably sleeved and meshed. An inclined rod is fixed on each gear component, and the upper ends of the two inclined rods are rotatably connected to the opposite side of the contact component and the connecting plate, respectively. The lower end of the mounting bracket is provided with a knob mechanism, and the knob mechanism is provided with two moving tubes, both ends of which are equipped with ball bearings. A return spring is fixed between the inclined rod and the mounting bracket.

[0013] Furthermore, the distance between the two balls can be adjusted as needed to facilitate contact between the balls and the partition, allowing the return spring to pull the two inclined rods to move in a straight line.

[0014] Preferably, the knob mechanism includes a turntable rotatably connected to the lower end of the mounting frame, with pull rods rotatably connected to both sides of the upper end of the turntable, one end of each pull rod rotatably connected to two movable tubes, and round tubes fixed to both sides of the mounting frame, with the two movable tubes slidably installed inside the two round tubes respectively.

[0015] Furthermore, rotating the turntable can drive the two levers to move, so that the ball bearings can move.

[0016] Preferably, the telescopic positioning mechanism includes a tension spring sleeved on the connecting assembly, with both ends of the tension spring fixed to opposite sides of the slide plate and the movable frame, respectively. Both ends of the movable frame are slidably mounted with top rods, and the upper ends of the movable frame are provided with openings on both sides, with the two openings corresponding to the two top rods respectively. Both sides of the slide are rotatably connected to swing arms, and the lower ends of the two swing arms pass through two openings and are rotatably connected to the upper ends of two top rods.

[0017] Furthermore, it makes it easier for staff to pull and adjust the position of the connecting component so that it can come into contact with different battery electrodes.

[0018] Preferably, the height of the connecting component is greater than the height of the partition.

[0019] Furthermore, this ensures that it can make contact with the battery electrodes.

[0020] The beneficial effects of this utility model are: 1. Set up corresponding bolt components so that the bolts pass through the partition and are screwed into the corresponding clamping plates and connecting plates. In addition, two bolt components pass through on both sides of the clamping plates and connecting plates to ensure the firmness of the connection. 2. The adjustment mechanism can achieve semi-automatic adjustment of the distance between the contact and the connecting plate, which is convenient for clamping the battery with the clamping plate. Moreover, the telescopic positioning mechanism can adjust the position of the connecting component, which is convenient for connecting the connecting component and the battery electrodes. 3. By meshing the two gear components, the two gear components rotate in opposite directions, so that the two inclined rod components rotate in opposite directions. This allows for quick adjustment of the distance between the contacting component and the connecting plate. Specifically, when the two inclined rod components rotate toward a parallel state, the distance between the contacting component and the connecting plate shortens. When the two balls enter between the two partitions, the return spring can pull the diagonal rod to move in a state parallel to the mounting bracket, so that the two diagonal rods are set in a straight line, causing the contact member to move away from the connecting plate, so that the contact member and the clamping plate cooperate to clamp the battery. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a diagram of the internal structure of the present invention; Figure 3 Appendix to this utility model Figure 2 Enlarged view of point B; Figure 4Appendix to this utility model Figure 2 Enlarged view of point A; In the diagram: 1. Partition plate, 2. Diagonal rod, 3. Return spring, 4. Gear, 5. Turntable, 6. Tie rod, 7. Mounting bracket, 8. Round tube, 9. Moving tube, 10. Ball bearing, 11. Clamp plate, 12. Positioning bolt, 13. Abutting part, 14. Connecting plate, 15. Sliding frame, 16. Swing rod, 17. Tension spring, 18. Opening, 19. Top rod, 20. Connecting assembly, 21. Slide plate, 22. Moving frame, 23. Moving slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-4 A battery module maintenance fixture integrating safety interlocking and active balancing includes two partitions 1, with a clamping plate 11 and a connecting plate 14 fixed between the two partitions 1. A sliding frame 15 is slidably mounted on both partitions 1, and an abutment 13 is fixed inside the sliding frame 15, with the abutment 13 located between the two partitions 1. In actual operation, corresponding bolt components are provided so that the bolts pass through the partitions 1 and are screwed into the corresponding clamping plate 11 and connecting plate 14. Moreover, two bolt components pass through both sides of the clamping plate 11 and the connecting plate 14 to ensure the firmness of the connection.

[0024] An adjustment mechanism is provided between the contact member 13 and the connecting plate 14; a moving groove 23 is provided on the opposite side of each of the two partitions 1, and multiple moving frames 22 are provided through the two moving grooves 23. A connecting component 20 is slidably installed in the moving frame 22. A telescopic positioning mechanism is provided on the connecting component 20. The telescopic positioning mechanism is connected to the two moving grooves 23. The adjustment mechanism can achieve the purpose of semi-automatic adjustment of the distance between the contact member 13 and the connecting plate 14, so as to facilitate the clamping of the battery with the clamping plate 11. Moreover, the position of the connecting component 20 can be adjusted by the telescopic positioning mechanism, so as to facilitate the connection between the connecting component 20 and the battery electrodes.

[0025] In this embodiment, the upper ends of the clamping plate 11 and the connecting plate 14 are flush with the upper ends of the two partitions 1; the lower end of the clamping plate 11 is flush with the lower end of the contact member 13. The clamping plate 11 and the contact member 13 are arranged to correspond to the upper sides of the battery.

[0026] In this embodiment, a positioning bolt 12 is screwed onto the sliding frame 15, and the positioning bolt 12 abuts against one of the partitions 1. By controlling the rotation direction of the positioning bolt 12, the distance between the positioning bolt 12 and the partition 1 can be easily controlled, which also makes it easy to control whether the abutting member 13 can move. When the positioning bolt 12 and the partition 1 abut, the position of the abutting member 13 can be effectively limited so that it can cooperate with the clamping plate 11 to fully clamp the upper two sides of the battery.

[0027] In this embodiment, the control mechanism includes a mounting frame 7, within which two gear components 4 are rotatably sleeved. The two gear components 4 mesh with each other, and a slanted rod component 2 is fixed on each gear component 4. The upper ends of the two slanted rod components 2 are respectively rotatably connected to the opposite side of the contact member 13 and the connecting plate 14. Through the meshing of the two gear components 4, the two gear components 4 rotate in opposite directions, so that the two slanted rod components 2 rotate in opposite directions, thereby quickly adjusting the distance between the contact member 13 and the connecting plate 14. That is, when the two slanted rod components 2 rotate towards a parallel state, the distance between the contact member 13 and the connecting plate 14 is shortened.

[0028] The lower end of the mounting bracket 7 is provided with a knob mechanism, on which two moving tubes 9 are provided, and ball bearings 10 are installed at both ends of the two moving tubes 9; a return spring 3 is fixed between the inclined rod 2 and the mounting bracket 7; in actual operation, when the two ball bearings 10 enter between the two partitions 1, the return spring 3 can pull the inclined rod 2 to move in a state parallel to the mounting bracket 7, so that the two inclined rods 2 are arranged in a straight line, causing the contact member 13 to move away from the connecting plate 14, so that the contact member 13 and the clamping plate 11 cooperate to clamp the battery.

[0029] In this embodiment, the knob mechanism includes a turntable 5 rotatably connected to the lower end of the mounting frame 7. Pull rods 6 are rotatably connected to both sides of the upper end of the turntable 5. One end of each pull rod 6 is rotatably connected to two movable tubes 9. Round tubes 8 are fixed to both sides of the mounting frame 7. The two movable tubes 9 are slidably installed inside the two round tubes 8. The operator can rotate the turntable 5 to pull the pull rods 6 to move the movable tubes 9 into the round tubes 8, so that the distance between the two turntables 5 is reduced to less than the distance between the two partitions 1, which facilitates the round tubes 8, movable tubes 9 and ball bearings 10 to enter between the two partitions 1. At the same time, the ball bearings 10 can abut against the partitions 1. The rotation of the ball bearings 10 will not affect the movement of the sliding frame 15 and the contacting member 13.

[0030] In this embodiment, the telescopic positioning mechanism includes a tension spring 17 sleeved on the connecting assembly 20. The two ends of the tension spring 17 are respectively fixed to the opposite side of the slide plate 21 and the movable frame 22. In actual operation, the connecting assembly 20 can drive the slide plate 21 to rise so that the tension spring 17 can be stretched. When the external force disappears, the tension spring 17 can drive the slide plate 21 and the connecting assembly 20 to fall, so that the lower end of the connecting assembly 20 can come into contact with the battery electrode.

[0031] Both ends of the movable frame 22 are slidably mounted with top rods 19. Openings 18 are provided on both sides of the upper end of the movable frame 22, and the two openings 18 correspond to the two top rods 19 respectively. Both sides of the slide plate 21 are rotatably connected with swing rods 16. The lower ends of the two swing rods 16 pass through the two openings 18 and are rotatably connected to the upper ends of the two top rods 19. When the connecting assembly 20 is pulled up, the slide plate 21 drives the swing rods 16 to rotate. Even if the swing rods 16 move in a direction horizontal to the connecting assembly 20, the swing rods 16 can drive the top rods 19 to retract into the movable frame 22, so that the top rods 19 and the side walls in the movable groove 23 are separated, so that the movable frame 22 can be moved between the two partitions 1 through the connecting assembly 20, so that the connecting assembly 20 and the battery electrodes are aligned.

[0032] In this embodiment, the height of the connecting component 20 is greater than the height of the partition 1; the lower end of the connecting component 20 can be connected to the electrode of the corresponding battery, and the upper end of the connecting component 20 is provided with a corresponding connecting post so as to connect with the external sampling interface component and can be connected to the detection equipment through a cable; and in actual operation, the connecting component 20 is covered with an insulating component to improve the safety of use.

[0033] In this utility model, the meshing of two gear components 4 causes the two gear components 4 to rotate in opposite directions, so that the two inclined rod components 2 can rotate in opposite directions, which can quickly adjust the distance between the contact component 13 and the connecting plate 14. That is, when the two inclined rod components 2 rotate towards a parallel state, the distance between the contact component 13 and the connecting plate 14 is shortened. When the two balls 10 enter between the two partitions 1, the reset spring 3 can pull the inclined rod 2 to move in a state parallel to the mounting bracket 7, so that the two inclined rods 2 are arranged in a straight line, causing the contact 13 to move away from the connecting plate 14, so that the contact 13 and the clamping plate 11 cooperate to clamp the battery. The connecting component 20 can drive the slide plate 21 to rise so that the tension spring 17 can be stretched. When the external force is removed, the tension spring 17 can drive the slide plate 21 and the connecting component 20 to fall so that the lower end of the connecting component 20 can come into contact with the battery electrode.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A battery module maintenance fixture integrating safety interlocking and active balancing, comprising two partitions (1), characterized in that: A clamping plate (11) and a connecting plate (14) are fixed together between the two partitions (1). A sliding frame (15) is slidably installed on the two partitions (1). An abutment (13) is fixed inside the sliding frame (15). The abutment (13) is located between the two partitions (1). An adjustment mechanism is provided between the contacting member (13) and the connecting plate (14); Each of the two partitions (1) has a movable slot (23) on one side. Multiple movable frames (22) are connected through the two movable slots (23). A connecting component (20) is slidably installed in the movable frame (22). A telescopic positioning mechanism is provided on the connecting component (20). The telescopic positioning mechanism is connected to the two movable slots (23).

2. The battery module maintenance fixture integrating safety interlocking and active balancing according to claim 1, characterized in that: The upper ends of the clamping plate (11) and the connecting plate (14) are flush with the upper ends of the two partitions (1); The lower end of the clamp (11) and the lower end of the contact member (13) are flush.

3. The battery module maintenance fixture integrating safety interlocking and active balancing according to claim 1, characterized in that: The sliding frame (15) is screwed with a positioning bolt (12), which abuts against one of the partitions (1).

4. The battery module maintenance fixture integrating safety interlocking and active balancing according to claim 1, characterized in that: The control mechanism includes a mounting frame (7), in which two gear components (4) are rotatably sleeved, the two gear components (4) mesh with each other, and a slanted rod component (2) is fixed on the gear component (4). The upper ends of the two slanted rod components (2) are rotatably connected to the opposite side of the contact component (13) and the connecting plate (14), respectively. The lower end of the mounting bracket (7) is provided with a knob mechanism, and the knob mechanism is provided with two moving tubes (9), and both ends of the two moving tubes (9) are equipped with ball bearings (10). A reset spring (3) is fixed between the inclined rod (2) and the mounting bracket (7).

5. A battery module maintenance fixture integrating safety interlocking and active balancing according to claim 4, characterized in that: The knob mechanism includes a turntable (5) rotatably connected to the lower end of the mounting frame (7). Pull rods (6) are rotatably connected to both sides of the upper end of the turntable (5). One end of each pull rod (6) is rotatably connected to two moving tubes (9). Round tubes (8) are fixed on both sides of the mounting frame (7). The two moving tubes (9) are slidably installed in the two round tubes (8).

6. The battery module maintenance fixture integrating safety interlocking and active balancing according to claim 1, characterized in that: The telescopic positioning mechanism includes a tension spring (17) sleeved on the connecting assembly (20), with both ends of the tension spring (17) fixed to the opposite side of the slide plate (21) and the movable frame (22), respectively; The movable frame (22) is slidably mounted with top rods (19) at both ends, and openings (18) are provided on both sides of the upper end of the movable frame (22), with the two openings (18) corresponding to the two top rods (19) respectively. Both sides of the slide plate (21) are rotatably connected to swing rods (16), and the lower ends of the two swing rods (16) pass through two openings (18) and are rotatably connected to the upper ends of two top rods (19).

7. A battery module maintenance fixture integrating safety interlocking and active balancing according to claim 1, characterized in that: The height of the connecting component (20) is greater than the height of the partition (1).

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