Battery cell balancing device for new energy battery pack

Abstract

The utility model provides a new energy battery pack cell balancing device, which comprises a support plate and a balancer body, two groups of support assemblies are arranged on the support plate, a support frame is arranged between the two groups of support assemblies, and two ends of the support frame are in sliding connection with the support assemblies; a fixing assembly is arranged on the supporting plate, and the battery pack is installed in the fixing assembly. A transmission assembly is arranged on the support frame and is in contact with positive and negative electrodes of battery cells in the battery pack; a mounting plate is arranged at one end of the supporting plate, the equalizer body is mounted on the mounting plate, and the transmission assembly is electrically connected with the equalizer body. According to the balancing device, a supporting frame is arranged above a supporting plate, and the supporting frame can move up and down through a supporting assembly; the battery pack is installed in a fixing assembly on the supporting plate, a transmission assembly is arranged on the supporting frame, and the battery pack is connected with the weighing instrument body through contact between the transmission assembly and the battery pack. Balanced maintenance can be performed on the battery pack through the weighing device body, and the overall performance of the battery pack and the service life of the battery are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of balancing devices, and more specifically, particularly relates to a new energy battery pack cell balancing device. Background Art

[0002] The battery pack is one of the core components of new energy vehicles, and its performance directly affects the vehicle's range, safety and service life. However, since the battery pack contains multiple cells, these cells have differences in the production process, and are affected by temperature and current factors during use, it is easy to cause an imbalance in the power between the cells, which will reduce the overall performance and battery life of the battery pack; therefore, a new energy battery pack cell balancing device is needed to regularly balance the cells to ensure that each cell can give full play to its performance and extend the service life of the battery pack. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a new energy battery pack cell balancing device to solve the technical problem in the prior art that the overall performance of the battery pack and the battery life are reduced due to the unbalanced power between the cells in the battery pack.

[0004] The purpose and function of the new energy battery pack cell balancing device of the utility model are achieved by the following specific technical means:

[0005] A new energy battery pack cell balancing device includes a support plate and a balancer body, wherein two groups of support components are arranged on the support plate, a support frame is arranged between the two groups of support components, and both ends of the support frame are slidably connected to the support components; a fixing component is arranged on the support plate, and the battery pack is installed in the fixing component; a transmission component is arranged on the support frame, and the transmission component is in contact with the positive and negative electrodes of the cells in the battery pack; a mounting plate is arranged at one end of the support plate, and the balancer body is installed on the mounting plate, and the transmission component is electrically connected to the balancer body.

[0006] According to a preferred embodiment, the support assembly includes a screw and a motor, two sets of mounting brackets are arranged on the support plate, mounting grooves are opened at both ends of the mounting brackets, bearings are arranged in the mounting grooves, and both ends of the screw are clamped in the bearings; the motor is installed on the top of the mounting bracket, and the motor shaft end is connected to the screw.

[0007] According to a preferred embodiment, connecting blocks are provided at both ends of the support frame, the connecting blocks are sleeved on the screw rod, and the support frame is slidably connected to the screw rod.

[0008] According to a preferred embodiment, the fixing assembly includes two groups of electric slide rails and a fixing plate, the support plate is provided with two groups of fixing grooves, and the electric slide rails are clamped in the fixing grooves; two groups of sliders are provided on the bottom surface of the fixing plate, and the sliders are clamped in the electric slide rails, and the electric slide rails are slidably connected to the fixing plate.

[0009] According to a preferred embodiment, a plurality of groups of limit blocks are arranged on the fixed plate, and the battery pack is clamped between the plurality of groups of limit blocks; and a plurality of groups of fixed pulleys are also arranged on the bottom surface of the fixed plate.

[0010] According to a preferred embodiment, the transmission component includes multiple groups of mounting seats and multiple groups of probes, the support frame is provided with multiple groups of mounting holes, the mounting seats are inserted into the mounting holes; the probes are inserted into the mounting seats and are slidably connected to the mounting seats; one end of the probes is in contact with the positive or negative pole of the battery cell.

[0011] According to a preferred embodiment, the transmission component also includes a connector, which is fixedly connected to the support frame; a connector is provided on the mounting seat, and the connector and the connector are connected via a connecting wire; a connecting wire is provided at one end of the connector, and the connector is connected to the equalizer body via the connecting wire.

[0012] According to a preferred embodiment, two groups of slide grooves are provided on the mounting seat, a through groove is provided on the probe, a connecting rod is passed through the through groove and the slide groove, and the probe is slidably connected to the mounting seat; a spring is provided between the probe and the mounting seat.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. A mounting plate is provided at one end of the support plate, and the equalizer body is installed on the mounting plate; a support frame is provided above the support plate, and the support frame is connected to the support plate through a support assembly, and the support frame can move up and down through the support assembly. A transmission assembly is provided on the support frame, and the transmission assembly is connected to the equalizer body through an electrical connection, and contacts the positive and negative electrodes of the battery cells in the battery pack through the transmission assembly; the equalizer body establishes an efficient information transmission channel with the positive and negative electrodes of the battery cells through the transmission assembly, providing a solid guarantee for the balanced management of the battery cells. Through the equalizer body, balanced maintenance of the battery cells is achieved to ensure that each battery cell can give full play to its performance and extend the service life of the battery pack.

[0015] 2. A fixing assembly is provided on the support plate, and the battery pack is installed on the fixing assembly; the electric slide rail and slider structure in the fixing assembly enable the fixing plate to move along the electric slide rail, and at the same time, a variety of fixed pulleys are provided on the bottom surface of the fixing plate, making the movement of the fixing plate smoother. The fixing assembly makes the installation and removal of the battery pack more convenient, and improves the efficiency of the device in maintaining the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model after assembly.

[0017] Figure 2 It is a schematic diagram of the structure of the utility model after being disassembled.

[0018] Figure 3 It is a structural diagram of the mounting base.

[0019] Figure 4 It is a structural schematic diagram of the fixed plate.

[0020] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0021] 11. Support plate; 12. Support frame; 13. Mounting frame; 14. Mounting slot; 15. Connecting block; 16. Fixing slot; 17. Mounting hole; 21. Equalizer body; 22. Mounting plate; 31. Screw rod; 32. Motor; 41. Electric slide rail; 42. Fixing plate; 43. Slider; 44. Limiting block; 51. Mounting seat; 52. Probe; 53. Connector; 54. Connector; 55. Slide slot; 56. Through slot; 57. Connecting rod; 58. Spring. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the technical solution of the present invention, but cannot be used to limit the protection scope of the present invention.

[0023] Example:

[0024] like Figure 1 , 2As shown, the utility model provides a new energy battery pack cell balancing device, including a support plate 11 and an equalizer body 21. Two groups of support components are arranged on the support plate 11. A support frame 12 is arranged between the two groups of support components. Both ends of the support frame 12 are slidably connected with the support components to achieve flexible adjustment and stable support. In addition, a fixing component is also arranged on the support plate 11, and the battery pack is installed in the fixing component to ensure its safe fixation. A transmission component is arranged on the support frame 12, and the transmission component contacts the positive and negative electrodes of the battery cells in the battery pack to achieve the transmission of electric energy; finally, a mounting plate 22 is arranged at one end of the support plate 11, and the equalizer body 21 is installed on the mounting plate 22, and the transmission component is electrically connected to the equalizer body 21, and the equalizer body 21 is used to achieve balanced maintenance of the battery cells, ensuring that each battery cell can give full play to its performance and extend the service life of the battery pack.

[0025] like Figure 2 , 4 As shown, the support assembly includes a screw rod 31 and a motor 32, and two sets of mounting frames 13 are arranged on the support plate 11, and mounting grooves 14 are provided at both ends. Bearings are arranged in the mounting grooves 14, and the two ends of the screw rod 31 are clamped in these bearings to ensure the smooth rotation of the screw rod 31. The motor 32 is installed on the top of the mounting frame 13, and the shaft end of the motor 32 is connected to the screw rod 31, and the screw rod 31 is driven to rotate by the motor 32. Connecting blocks 15 are arranged at both ends of the support frame 12, and the connecting blocks 15 are sleeved on the screw rod 31, so that the support frame 12 can be slidably connected with the screw rod 31, and the support frame 12 can automatically move up and down.

[0026] The fixing assembly includes two groups of electric slide rails 41 and a fixing plate 42. Two groups of fixing grooves 16 are provided on the support plate 11, and the electric slide rails 41 are clamped in the fixing grooves 16. Two groups of sliders 43 are provided on the bottom surface of the fixing plate 42, and the sliders 43 are clamped in the electric slide rails 41, so that the electric slide rails 41 and the fixing plate 42 form a sliding connection. The fixing plate 42 can move along the electric slide rails 41, and multiple groups of limit blocks 44 are provided on the fixing plate 42. The battery pack can be firmly clamped between the multiple groups of limit blocks 44, effectively preventing the battery pack from moving during use. In addition, multiple groups of fixed pulleys are also provided on the bottom surface of the fixing plate 42, so that the movement of the fixing plate 42 is smoother.

[0027] like Figure 2 , 3As shown, the transmission component includes multiple groups of mounting seats 51 and multiple groups of probes 52, and multiple groups of mounting holes 17 are provided on the support frame 12, and the mounting seats 51 are penetrated in the mounting holes 17. The probe 52 is penetrated in the mounting seat 51 and is slidably connected to the mounting seat 51. One end of the probe 52 contacts the positive or negative pole of the battery cell to transmit the electric energy safely and efficiently, thereby ensuring the stability of the transmission. The transmission component also includes a connector 53, which is firmly fixedly connected to the support frame 12. A connector 54 is provided on the mounting seat 51, and the connector 54 is closely connected to the connector 53 through a connecting line. A connecting wire is provided at one end of the connector 53, through which the connector 53 and the equalizer body 21 are effectively connected, so that the electric energy can be stably transmitted to the equalizer body 21, thereby ensuring the normal operation of the entire system. Two groups of slide grooves 55 are provided on the mounting seat 51, which match the through grooves 56 provided on the probe 52. The connecting rod 57 passes through the through slot 56 and the slide slot 55, so that the probe 52 can slide smoothly on the mounting seat 51, and can also limit the moving range of the probe 52. In addition, a spring 58 is also arranged between the probe 52 and the mounting seat 51, which plays a buffering role and provides appropriate elastic force for the probe 52, which not only ensures the flexibility of the probe 52, but also increases the stability and reliability of the transmission component. The probe 52 contacts the positive and negative electrodes of the battery cell in the battery pack, so that the equalizer body 21 establishes an efficient information transmission channel with the positive and negative electrodes of the battery cell through the transmission component, providing a solid guarantee for the balanced management of the battery cell. Through the equalizer body 21, balanced maintenance of the battery cell can be achieved to ensure that each battery cell can give full play to its performance and extend the service life of the battery pack.

[0028] The specific usage and function of this embodiment are as follows:

[0029] When in use, first install the battery pack in the fixing assembly to ensure that the battery pack is securely fixed. Then, the motor 32 drives the screw rod 31 to rotate, so that the support frame 12 automatically moves up and down and adjusts to the appropriate position. Next, the probe 52 in the transmission assembly contacts the positive and negative poles of the battery cells in the battery pack to achieve the transmission of electrical energy and perform balanced maintenance on the battery pack. The support assembly can achieve flexible adjustment and stable support; the fixing assembly ensures the safe fixation of the battery pack to prevent movement during use; the transmission assembly realizes efficient transmission of electrical energy, and balances the battery cells through the equalizer body 21 to extend the service life of the battery pack.

[0030] The basic principle and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments.

Claims

1. A new energy battery pack cell balancing device, comprising a support plate (11) and a balancer body (21), characterized in that: Two groups of support components are arranged on the support plate (11), a support frame (12) is arranged between the two groups of support components, and both ends of the support frame (12) are slidably connected to the support components; a fixing component is arranged on the support plate (11), and a battery pack is installed in the fixing component; a transmission component is arranged on the support frame (12), and the transmission component is in contact with the positive and negative electrodes of the battery cells in the battery pack; a mounting plate (22) is arranged at one end of the support plate (11), and the equalizer body (21) is installed on the mounting plate (22), and the transmission component is electrically connected to the equalizer body (21).

2. A new energy battery pack cell balancing device according to claim 1, characterized in that: The support assembly comprises a screw rod (31) and a motor (32); two groups of mounting frames (13) are arranged on the support plate (11); mounting grooves (14) are provided at both ends of the mounting frames (13); bearings are arranged in the mounting grooves (14); both ends of the screw rod (31) are clamped in the bearings; the motor (32) is mounted on the top of the mounting frame (13); and the shaft end of the motor (32) is connected to the screw rod (31).

3. A new energy battery pack cell balancing device according to claim 2, characterized in that: Connecting blocks (15) are provided at both ends of the support frame (12), the connecting blocks (15) are sleeved on the screw rod (31), and the support frame (12) is slidably connected to the screw rod (31).

4. A new energy battery pack cell balancing device according to claim 1, characterized in that: The fixing assembly comprises two groups of electric slide rails (41) and a fixing plate (42); the support plate (11) is provided with two groups of fixing grooves (16), and the electric slide rails (41) are clamped in the fixing grooves (16); the bottom surface of the fixing plate (42) is provided with two groups of sliding blocks (43), and the sliding blocks (43) are clamped in the electric slide rails (41); the electric slide rails (41) are slidably connected to the fixing plate (42).

5. A new energy battery pack cell balancing device according to claim 4, characterized in that: The fixed plate (42) is provided with a plurality of groups of limit blocks (44), and the battery pack is clamped between the plurality of groups of limit blocks (44); and the bottom surface of the fixed plate (42) is also provided with a plurality of groups of fixed pulleys.

6. A new energy battery pack cell balancing device according to claim 1, characterized in that: The transmission component comprises a plurality of mounting seats (51) and a plurality of probes (52); the support frame (12) is provided with a plurality of mounting holes (17); the mounting seats (51) are inserted into the mounting holes (17); the probes (52) are inserted into the mounting seats (51) and are slidably connected to the mounting seats (51); one end of the probes (52) is in contact with the positive electrode or the negative electrode of the battery cell.

7. A new energy battery pack cell balancing device according to claim 6, characterized in that: The transmission component also includes a connector (53), and the connector (53) is fixedly connected to the support frame (12); a connector (54) is provided on the mounting seat (51), and the connector (54) and the connector (53) are connected via a connecting wire; a connecting wire is provided at one end of the connector (53), and the connector (53) is connected to the equalizer body (21) via the connecting wire.

8. A new energy battery pack cell balancing device according to claim 7, characterized in that: The mounting seat (51) is provided with two groups of slide grooves (55), the probe (52) is provided with a through groove (56), a connecting rod (57) is inserted into the through groove (56) and the slide groove (55), and the probe (52) is slidably connected to the mounting seat (51); a spring (58) is provided between the probe (52) and the mounting seat (51).

Images