An electric cell equalization device

Abstract

The utility model discloses an equalizing device of electric core provides a kind of, including: pedestal, mounting seat, probe module and transmission mechanism;Wherein, the transmission mechanism includes first pivot, second pivot and first mounting piece, the first pivot is connected with the pedestal;The first mounting piece is connected with the first pivot around first direction rotation, and the first mounting piece is movably connected in the first pivot along the first direction;One end of the second pivot is connected with the first mounting piece around second direction rotation, and / or, the other end of the second pivot is connected with the mounting seat around second direction rotation, the second direction is perpendicular to the first direction;The probe module is installed in the mounting seat, and the probe module is used to connect electric core and carry out voltage equalization to electric core.The equalizing device of electric core in the utility model can satisfy the compatibility of equalizing test to different specifications of electric core, improve the adaptability of the equalizing device.

Description

Technical Field

[0001] This utility model relates to the field of battery testing equipment technology, and in particular to a cell balancing device. Background Technology

[0002] Cell consistency is a fundamental technical indicator for the success of battery products in the market, directly impacting safety, cost, and user experience. With the rapid growth of the battery application market, it is now necessary to improve cell consistency through technological innovation and process optimization to cope with market competition and regulatory requirements.

[0003] Cell balancing is an important way to analyze and optimize cell consistency in manufacturing and aftermarket. Cell balancing devices are an important component of cell balancing. However, due to differences in projects and balancing scenarios, the adaptability of current cell balancing devices is poor. Utility Model Content

[0004] In view of the above problems, the present invention provides a cell balancing device that overcomes or at least partially solves the above problems.

[0005] To address the aforementioned problems, this utility model discloses a cell balancing device, comprising: a base, a mounting base, a probe module, and a transmission mechanism; wherein,

[0006] The transmission mechanism includes a first rotating shaft, a second rotating shaft, and a first mounting component. The first rotating shaft is connected to the base. The first mounting component is rotatably connected to the first rotating shaft about a first direction, and the first mounting component is movably connected to the first rotating shaft along the first direction.

[0007] One end of the second rotating shaft is rotatably connected to the first mounting member about a second direction, and / or the other end of the second rotating shaft is rotatably connected to the mounting base about a second direction, the second direction being perpendicular to the first direction;

[0008] The probe module is installed on the mounting base and is used to connect to the battery cell and perform voltage equalization on the battery cell.

[0009] Optionally, the transmission mechanism further includes a second mounting component and a third rotating shaft;

[0010] The end of the second rotating shaft away from the first mounting member is connected to the second mounting member, and the second mounting member is rotatably connected to the first mounting member about the second direction via the second rotating shaft;

[0011] One end of the third rotating shaft is rotatably connected to the second mounting member about the first direction, and / or the other end of the third rotating shaft is rotatably connected to the mounting base about the first direction.

[0012] Optionally, the transmission mechanism further includes a third mounting component and a fourth rotating shaft;

[0013] The other end of the third rotating shaft is connected to the third mounting component; the third mounting component is rotatably connected to the second mounting component about the first direction via the third rotating shaft.

[0014] One end of the fourth rotating shaft is rotatably connected to the third mounting member about a third direction, and / or the other end of the fourth rotating shaft is rotatably connected to the mounting base about a third direction, the third direction being perpendicular to the first direction.

[0015] Optionally, the second rotating shaft extends along the second direction, the third rotating shaft extends along the first direction, and the fourth rotating shaft extends along the third direction. The transmission mechanism includes a first rolling bearing, a second rolling bearing, a third rolling bearing, a fourth rolling bearing, and a fifth rolling bearing.

[0016] One end of the second rotating shaft is assembled with the first mounting component via the first rolling bearing, and the other end of the second rotating shaft is assembled with the second mounting component via the second rolling bearing;

[0017] One end of the third rotating shaft is assembled with the second mounting component via the third rolling bearing, and the other end of the third rotating shaft is assembled with the third mounting component via the fourth rolling bearing;

[0018] One end of the fourth rotating shaft is assembled with the third mounting component via the fifth rolling bearing.

[0019] Optionally, the first mounting member is provided with a mounting hole extending through the first direction;

[0020] The first rotating shaft extends along a first direction and passes through the mounting hole.

[0021] Optionally, the cell balancing device includes a first locking structure, which is connected to the first mounting member and the first rotating shaft respectively. The first locking structure has a first unlocked state and a first locked state. In the first locked state, the first locking structure locks the first mounting member and the first rotating shaft. In the first unlocked state, the first mounting member can move relative to the first rotating shaft.

[0022] Optionally, the transmission mechanism includes an adapter, a fifth rotating shaft, and a fourth mounting component, wherein the adapter is connected to the other end of the second rotating shaft;

[0023] The fifth rotating shaft extends along the first direction and is fixedly connected to the adapter.

[0024] The fourth mounting component is rotatably connected to the fifth rotating shaft around the first direction, and the fourth mounting component is fixedly connected to the mounting base.

[0025] Optionally, the mounting base includes a first base body and a connecting block, the connecting block being movably connected to the first base body along a fourth direction, and the connecting block being fixedly connected to the probe module;

[0026] The fourth direction is perpendicular to the first direction.

[0027] Optionally, the first base is provided with a slide rail extending in the fourth direction;

[0028] The connecting block is slidably connected to the slide rail along the fourth direction.

[0029] Optionally, the cell balancing device includes a second locking structure, which is connected to the connecting block and the first base respectively. The second locking structure has a second unlocked state and a second locked state. In the second locked state, the second locking structure locks the connecting block and the first base. In the second unlocked state, the connecting block can move relative to the first base.

[0030] Optionally, the number of probe modules is at least two, and the probe modules are configured in a one-to-one correspondence with the connecting blocks;

[0031] One of the probe modules is used to electrically connect to the positive terminal of the battery cell, and the other probe module is used to electrically connect to the negative terminal of the battery cell.

[0032] Optionally, the base includes a second seat body, a support column, and a brake wheel;

[0033] One side of the second seat is fixed to the support column, and the other side is fixed to the brake wheel;

[0034] The support extends along the first direction and is fixedly connected to both ends of the first rotating shaft.

[0035] The embodiments of this utility model have the following advantages:

[0036] In this embodiment of the invention, the probe module is mounted on the mounting base, which is connected to the second rotating shaft. The second rotating shaft is also connected to the first mounting member, which is further connected to the first rotating shaft, and the first rotating shaft is also connected to the base. This allows the probe module to be positioned relative to the mounting base via the transmission mechanism. Furthermore, the first mounting member can rotate around the first direction and can move up and down along the first direction. The second rotating shaft can rotate around the second direction. Thus, under the drive of the transmission mechanism, the probe module can rotate around the first direction, move up and down along the first direction, and rotate around the second direction. This allows for diverse position adjustments of the probe module, enabling compatibility with equalization testing of cells of different specifications and improving the adaptability of the equalization device. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of a cell equalization device according to the present invention;

[0038] Figure 2 This is a schematic diagram of a third rotating shaft connecting a second mounting component and a third mounting component according to this utility model;

[0039] Figure 3 This is a schematic diagram of a first locking structure of this utility model;

[0040] Figure 4 This is an assembly diagram of an adapter and a fourth mounting component according to this utility model;

[0041] Figure 5 This is a schematic diagram of the structure of a probe module according to this utility model.

[0042] Explanation of reference numerals in the attached figures:

[0043] 10. Mounting base; 11. First base body; 111. Slide rail; 12. Connecting block;

[0044] 20. Base; 21. Second seat; 22. Support column; 23. Brake wheel;

[0045] 30. Probe module; 31. Mounting structure; 32. Probe;

[0046] 40. Transmission mechanism; 41. First rotating shaft; 42. Second rotating shaft; 43. Third rotating shaft; 44. Fourth rotating shaft; 45. Fifth rotating shaft; 51. First mounting component; 511. Mounting hole; 52. Second mounting component; 53. Third mounting component; 54. Fourth mounting component; 55. Adapter component; 61. First rolling bearing; 62. Second rolling bearing; 63. Third rolling bearing; 64. Fourth rolling bearing; 65. Fifth rolling bearing;

[0047] 71. First locking structure; 72. Second locking structure;

[0048] Z, first direction; X1, second direction; X2, third direction; X3, fourth direction. Detailed Implementation

[0049] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] The terms "first" and "second" in the specification and claims of this utility model may explicitly or implicitly include one or more of the features. In the description of this utility model, unless otherwise stated, "multiple" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0051] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0052] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] One of the core concepts of this utility model embodiment lies in disclosing a cell balancing device, such as... Figure 1As shown, the cell balancing device includes: a base 20, a mounting base 10, a probe module 30, and a transmission mechanism 40; wherein, the transmission mechanism 40 includes a first rotating shaft 41, a second rotating shaft 42, and a first mounting member 51, the first rotating shaft 41 being connected to the base 20; the first mounting member 51 being rotatably connected to the first rotating shaft 41 about a first direction Z, and the first mounting member 51 being movably connected to the first rotating shaft 41 along the first direction Z; one end of the second rotating shaft 42 being rotatably connected to the first mounting member 51 about a second direction X1, and / or, the other end of the second rotating shaft 42 being rotatably connected to the mounting base 10 about a second direction X1, the second direction X1 being perpendicular to the first direction Z.

[0054] In this embodiment of the invention, the probe module 30 is mounted on the mounting base 10, which is connected to the second rotating shaft 42. The second rotating shaft 42 is also connected to the first mounting member 51, which is further connected to the first rotating shaft 41. The first rotating shaft 41 is also connected to the base 20. This allows the probe module 30 to be adjusted relative to the mounting base 10 via the transmission mechanism 40. Furthermore, the first mounting member 51 can rotate around the first direction Z and can also move up and down along the first direction Z. The second rotating shaft 42 can rotate around the second direction X1. Thus, under the drive of the transmission mechanism 40, the probe module 30 can rotate around the first direction Z, move up and down along the first direction Z, and rotate around the second direction X1. This allows for diverse adjustments to the position of the probe module 30, enabling compatibility with equalization testing of cells of different specifications and improving the adaptability of the equalization device.

[0055] In this embodiment of the invention, the base 20 is the main structure of the cell balancing device, used to install and support the probe module 30 and the transmission mechanism 40. The transmission mechanism 40 may include a first rotating shaft 41, a first mounting member 51, and a second rotating shaft 42 connected in sequence. The first rotating shaft 41 may be fixedly connected to the base 20, or the first rotating shaft 41 may be rotatably connected to the base 20; this embodiment of the invention does not specifically limit this.

[0056] Specifically, the first mounting member 51 can rotate relative to the first rotating shaft 41 about the first direction Z, so that the first mounting member 51 can move in a plane perpendicular to the first direction Z. Moreover, the first mounting member 51 can also move relative to the first rotating shaft 41 along the first direction Z, so that the first mounting member 51 can be adjusted up and down along the first direction Z.

[0057] Optionally, the first pivot 41 may extend along the first direction Z to improve the reliability of the first mounting member 51 in raising and lowering along the first direction Z and rotating about the first direction Z.

[0058] Specifically, one end of the second rotating shaft 42 is connected to the first mounting member 51, and the other end of the second rotating shaft 42 is connected to the mounting base 10, so that the second rotating shaft 42 can serve as a transfer device between the mounting base 10 and the first mounting member 51, thereby enabling the first mounting member 51 to drive the mounting base 10 to move synchronously.

[0059] Specifically, one end of the second rotating shaft 42 is rotatably connected to the first mounting member 51 about the second direction X1, and / or the other end of the second rotating shaft 42 is rotatably connected to the mounting base 10 about the second direction X1. This allows the mounting base 10 to be rotatably connected to the first mounting member 51 about the second direction X1 via the second rotating shaft 42, thereby enabling the mounting base 10 to rotate relative to the first mounting member 51 about the second direction X1.

[0060] In some embodiments, the end of the second rotating shaft 42 furthest from the first mounting member 51 can be directly connected to the mounting base 10. In this case, when one end of the second rotating shaft 42 is rotatably connected to the first mounting member 51, the other end of the second rotating shaft 42 can be fixedly or rotatably connected to the mounting base 10. Alternatively, when one end of the second rotating shaft 42 is fixedly connected to the first mounting member 51, the other end of the second rotating shaft 42 can be rotatably connected to the mounting base 10. In other embodiments, the end of the second rotating shaft 42 furthest from the first mounting member 51 can be indirectly connected to the mounting base 10.

[0061] Furthermore, when the first mounting member 51 rotates relative to the first rotating shaft 41 about the first direction Z, it can drive the mounting base 10 to rotate together about the first direction Z through the second rotating shaft 42; when the first mounting member 51 moves up and down relative to the first rotating shaft 41 along the first direction Z, it can drive the mounting base 10 to move up and down together along the first direction Z through the second rotating shaft 42; the mounting base 10 can also rotate relative to the first mounting member 51 about the second direction X1, so that the mounting base 10 can move in a plane perpendicular to the second direction X1.

[0062] In this embodiment of the utility model, the approximate position of the mounting base 10 can be adjusted by adjusting the first mounting member 51 to rotate around the first direction Z and to move up and down along the first direction Z; the specific position of the mounting base 10 can be precisely adjusted by adjusting the mounting base 10 to rotate relative to the first mounting member 51 around the second direction X1.

[0063] Specifically, the probe module 30 is mounted on the mounting base 10, which serves to support the probe module 30. By mounting the probe module 30 on the mounting base 10, the reliability and stability of the probe module 30's installation arrangement can be improved. The mounting base 10 can move the probe module 30 together, allowing the probe module 30 to rotate along the first direction Z, rise and fall along the first direction Z, and rotate along the second direction X1. The position adjustment range is relatively wide, which can adapt to a variety of equilibrium environments and has high compatibility.

[0064] In this embodiment of the utility model, the position of the mounting base 10 is adjustable over a wide range. For different types of battery cells, there is no need to customize special clamps, thereby reducing customization costs and making it easier to replace different battery cell signals. The probe module 30 is electrically connected to the battery cell to perform voltage equalization. The probe module 30 may include probe 32, which has a strong overload capacity and can support a maximum current overload capacity of 30A. It can also improve equalization efficiency and reduce equalization costs. Moreover, for large-sized battery packs or energy storage systems, there is no need to use other tooling, which can reduce the difficulty of operation for personnel.

[0065] Specifically, the probe module 30 may include a mounting structure 31 for carrying the probe 32, and the mounting structure 31 may be mounted on the mounting base 10.

[0066] Specifically, probe 32 can be connected to both the equalizer and the battery cell. This allows for equalization testing of the battery cell after the equalizer is activated. The equalizer can be a specialized device used to address voltage imbalances between cells in a battery pack. It can achieve active equalization by transferring excess energy from high-energy cells to low-energy cells, thus balancing the voltage of each cell. Alternatively, it can achieve passive equalization by dissipating some energy from high-voltage cells as heat through resistive discharge, thereby lowering their voltage and achieving voltage balance with other cells.

[0067] Specifically, the hardware of an equalizer can include a control unit, a voltage detection component, a current distribution module, a current detection module, a communication interface, and a housing structure. The control unit is the core of the equalizer, responsible for monitoring the voltage and current of individual battery cells and controlling the distribution of equalization current according to the set equalization strategy, possessing high-precision measurement and control functions. The voltage monitoring component, composed of integrated circuits and sensors, can monitor the voltage of each cell in the battery pack in real time, providing a data foundation for equalization control. The current distribution module consists of multiple current distribution channels, responsible for distributing the equalization current output by the control unit to each cell, employing efficient power electronics to achieve fast and accurate current distribution. The current detection module contains multiple current detection channels, used to detect the current value of each cell after the equalization current, and feeds the detection results back to the control unit to accurately monitor the effect of current distribution. The communication interface is used for data exchange with other devices. The housing structure is mostly made of plastic, serving to protect the internal circuit boards and other components.

[0068] Optionally, the transmission mechanism 40 further includes a second mounting member 52 and a third rotating shaft 43; one end of the second rotating shaft 42 away from the first mounting member 51 is connected to the second mounting member 52, and the second mounting member 52 is rotatably connected to the first mounting member 51 about a second direction X1 via the second rotating shaft 42; one end of the third rotating shaft 43 is rotatably connected to the second mounting member 52 about a first direction Z, and / or, the other end of the third rotating shaft 43 is rotatably connected to the mounting base 10 about a first direction Z.

[0069] In this embodiment of the utility model, the addition of a second mounting component 52 and a third rotating shaft 43 can change the adjustable range of the mounting base 10 to adapt to the needs of more different scenarios.

[0070] Specifically, the second rotating shaft 42 is connected to the second mounting member 52 and the first mounting member 51 respectively, and can serve to transfer the second mounting member 52 and the first mounting member 51. One end of the second rotating shaft 42 is rotatably connected to the first mounting member 51 around the second direction X1, and / or the other end of the second rotating shaft 42 is rotatably connected to the second mounting member 52 around the second direction X1. This can improve the reliability of realizing the rotatable connection between the second mounting member 52 and the first mounting member 51 around the second direction X1 through the second rotating shaft 42, so that the second mounting member 52 can rotate relative to the first mounting member 51 around the second direction X1.

[0071] Specifically, when one end of the second rotating shaft 42 is rotatably connected to the first mounting member 51, the other end of the second rotating shaft 42 can be fixedly connected or rotatably connected to the second mounting member 52; when one end of the second rotating shaft 42 is fixedly connected to the first mounting member 51, the other end of the second rotating shaft 42 can be rotatably connected to the second mounting member 52.

[0072] Specifically, one end of the third rotating shaft 43 is rotatably connected to the second mounting member 52 about the first direction Z, and / or the other end of the third rotating shaft 43 is rotatably connected to the mounting base 10 about the first direction Z. The third rotating shaft 43 can serve as a transfer connection between the mounting base 10 and the second mounting member 52, which can improve the reliability of the mounting base 10 being rotatably connected to the second mounting member 52 about the first direction Z through the third rotating shaft 43, so that the mounting base 10 can rotate relative to the second mounting member 52 about the first direction Z.

[0073] In some embodiments, the end of the third rotating shaft 43 furthest from the second mounting member 52 can be directly connected to the mounting base 10. In this case, when one end of the third rotating shaft 43 is rotatably connected to the second mounting member 52, the other end of the third rotating shaft 43 is fixedly or rotatably connected to the mounting base 10; when one end of the third rotating shaft 43 is fixedly connected to the second mounting member 52, the other end of the third rotating shaft 43 is rotatably connected to the mounting base 10. In other embodiments, the end of the third rotating shaft 43 furthest from the second mounting member 52 can be indirectly connected to the mounting base 10.

[0074] In this embodiment of the utility model, the approximate position of the mounting base 10 can be adjusted by adjusting the first mounting member 51 to rotate around the first direction Z and to rise and fall along the first direction Z, and by adjusting the second mounting member 52 to rotate relative to the first mounting member 51 around the second direction X1. The specific position of the mounting base 10 can be precisely adjusted by adjusting the mounting base 10 to rotate relative to the second mounting member 52 around the first direction Z.

[0075] Optionally, the transmission mechanism 40 further includes a third mounting member 53 and a fourth rotating shaft 44; the other end of the third rotating shaft 43 is connected to the third mounting member 53; the third mounting member 53 is rotatably connected to the second mounting member 52 about the first direction Z through the third rotating shaft 43; one end of the fourth rotating shaft 44 is rotatably connected to the third mounting member 53 about the third direction X2, and the other end of the fourth rotating shaft 44 is rotatably connected to the mounting base 10 about the third direction X2, the third direction X2 being perpendicular to the first direction Z.

[0076] In this embodiment of the invention, the addition of a third mounting component 53 and a fourth rotating shaft 44 can change the adjustable range of the position of the mounting base 10 to adapt to the needs of more scenarios.

[0077] Specifically, such as Figure 2 As shown, the third rotating shaft 43 is connected to the third mounting member 53 and the second mounting member 52 respectively, and can serve to transfer the third mounting member 53 and the second mounting member 52. One end of the third rotating shaft 43 is rotatably connected to the second mounting member 52 about the first direction Z, and / or the other end of the third rotating shaft 43 is rotatably connected to the third mounting member 53 about the first direction Z, which can improve the reliability of realizing the rotatable connection between the third mounting member 53 and the second mounting member 52 about the first direction Z.

[0078] Specifically, when one end of the third rotating shaft 43 is rotatably connected to the second mounting member 52, the other end of the third rotating shaft 43 is rotatably or fixedly connected to the third mounting member 53; when one end of the third rotating shaft 43 is fixedly connected to the second mounting member 52, the other end of the third rotating shaft 43 is rotatably connected to the third mounting member 53.

[0079] Specifically, one end of the fourth rotating shaft 44 is rotatably connected to the third mounting member 53 about a third direction X2, and the other end of the fourth rotating shaft 44 is rotatably connected to the mounting base 10 about a third direction X2. The fourth rotating shaft 44 can serve as a transfer between the third mounting member 53 and the mounting base 10, which can improve the reliability of the rotatable connection between the third mounting member 53 and the mounting base 10 about a third direction X2.

[0080] In some embodiments, the end of the fourth rotating shaft 44 furthest from the third mounting member 53 can be directly connected to the mounting base 10. In this case, when one end of the fourth rotating shaft 44 is rotatably connected to the third mounting member 53, the other end of the fourth rotating shaft 44 can be rotatably or fixedly connected to the mounting base 10; when one end of the fourth rotating shaft 44 is fixedly connected to the third mounting member 53, the other end of the fourth rotating shaft 44 is rotatably connected to the mounting base 10. In other embodiments, the end of the fourth rotating shaft 44 furthest from the third mounting member 53 can be indirectly connected to the mounting base 10.

[0081] Specifically, both the second direction X1 and the third direction X2 are perpendicular to the first direction Z, wherein the second direction X1 and the third direction X2 can be parallel or intersecting. Furthermore, under the connecting action of the second mounting member 52, the second rotating shaft 42 can rotate relative to the third rotating shaft 43 around the first direction Z, and under the connecting action of the third mounting member 53, the fourth rotating shaft 44 can rotate relative to the third rotating shaft 43 around the first direction Z, thereby enabling the fourth rotating shaft 44 to be arranged parallel or intersecting with the second rotating shaft 42.

[0082] Specifically, when the fourth rotating shaft 44 is parallel to the second rotating shaft 42, the fourth rotating shaft 44 can extend away from the second rotating shaft 42, so that the end of the fourth rotating shaft 44 away from the third mounting member 53 is farther from the base 20, which can achieve the adjustment of the position of the mounting seat 10 to be farther from the base 20; when the fourth rotating shaft 44 and the second rotating shaft 42 form an angle, and the angle is small, the end of the fourth rotating shaft 44 away from the third mounting member 53 is closer to the base 20, which can achieve the adjustment of the position of the mounting seat 10 to be closer to the base 20, that is, the fourth rotating shaft 44 can achieve the effect of extension and retraction relative to the second rotating shaft 42, thereby adjusting the mounting seat 10 to move away from or closer to the base 20.

[0083] In this embodiment of the utility model, the approximate position of the mounting base 10 can be adjusted by adjusting the first mounting member 51 to rotate around the first direction Z and to rise and fall along the first direction Z, adjusting the second mounting member 52 to rotate relative to the first mounting member 51 around the second direction X1, and adjusting the third mounting member 53 to rotate relative to the second mounting member 52 around the first direction Z. The specific position of the mounting base 10 can be precisely adjusted by adjusting the mounting base 10 to rotate relative to the third mounting member around the third direction X2.

[0084] In this embodiment of the invention, both the second direction X1 and the third direction X2 are perpendicular to the first direction Z, and the second direction X1 is perpendicular to the third direction X2. Thus, under the transmission action of the transmission mechanism 40, the mounting base 10 can have XYZ three-way adjustment, and with the cooperation of the second rotating shaft 42 and the third rotating shaft 43, the mounting base 10 can achieve 360-degree rotation, making the battery cell balancing device more compatible.

[0085] Optionally, the second rotating shaft 42 extends along the second direction X1, which can improve the reliability of the second mounting member 52 rotating relative to the first mounting member 51 about the second direction X1.

[0086] Optionally, the third rotating shaft 43 extends along the first direction Z, which can improve the reliability of the third mounting member 53 rotating relative to the second mounting member 52 about the first direction Z.

[0087] Optionally, the fourth pivot 44 extends along the third direction X2, which can improve the reliability of the mounting base 10 rotating relative to the third component about the third direction X2.

[0088] Optionally, the transmission mechanism 40 further includes a first rolling bearing 61, a second rolling bearing 62, a third rolling bearing 63, a fourth rolling bearing 64, and a fifth rolling bearing 65; one end of the second rotating shaft 42 is assembled with the first mounting member 51 via the first rolling bearing 61, and the other end of the second rotating shaft 42 is assembled with the second mounting member 52 via the second rolling bearing 62, which can improve the reliability of the rolling connection between the second rotating shaft 42 and the first mounting member 51 and the second mounting member 52 respectively.

[0089] Optionally, one end of the third rotating shaft 43 is assembled with the second mounting member 52 via a third rolling bearing 63, and the other end of the third rotating shaft 43 is assembled with the third mounting member 53 via a fourth rolling bearing 64, which can improve the reliability of the rolling connection between the third rotating shaft 43 and the second mounting member 52 and the third mounting member respectively.

[0090] Optionally, one end of the fourth shaft 44 is assembled with the third mounting member 53 via a fifth rolling bearing 65, which can improve the reliability of the rotational connection between the fourth shaft 44 and the third mounting member 53.

[0091] Optionally, the first mounting member 51 is provided with a mounting hole 511 extending through in the first direction Z; the first rotating shaft 41 extends in the first direction Z and passes through the mounting hole 511.

[0092] In this embodiment of the utility model, the first mounting member 51 can be fitted with the first rotating shaft 41 through the shaft hole, which can improve the reliability and stability of the first mounting member 51 rotating around the first direction Z and rising and falling along the first direction Z.

[0093] Optionally, such as Figure 3As shown, the cell balancing device further includes a first locking structure 71, which is connected to the first mounting member 51 and the first rotating shaft 41 respectively. The first locking structure 71 has a first unlocked state and a first locked state. In the first locked state, the first locking structure 71 locks the first mounting member 51 and the first rotating shaft 41, so that the first mounting member 51 is fixed relative to the first rotating shaft 41, which can prevent the probe module 30 from shaking and improve the reliability of the probe module 30 in balancing the cells.

[0094] In the first unlocked state, the first mounting component 51 can move relative to the first rotating shaft 41, and the relative position of the first mounting component 51 and the first rotating shaft 41 can be adjusted, thereby adjusting the relative position of the probe module 30 and the battery cell.

[0095] Optionally, the first locking structure 71 includes a handle and a screw connected to each other, and the first mounting member 51 may be provided with a threaded hole, at least a portion of which can be screwed into the threaded hole.

[0096] In this embodiment of the invention, rotating the handle in the forward direction can screw the screw into the threaded hole, so that the screw is in close contact with the first rotating shaft 41, thereby locking the first mounting part 51 and the first rotating shaft 41, and allowing the first locking structure 71 to switch to the first locking state; rotating the handle in the reverse direction can screw the screw out of the threaded hole, so that the screw leaves the first rotating shaft 41, and allowing the first locking structure 71 to switch to the first unlocking state.

[0097] Optionally, such as Figure 4 As shown, the transmission mechanism 40 includes an adapter 55, a fifth rotating shaft 45, and a fourth mounting member 54. The adapter 55 is connected to the other end of the second rotating shaft 42. The fifth rotating shaft 45 extends along the first direction Z and is fixedly connected to the adapter 55. The fourth mounting member 54 is rotatably connected to the fifth rotating shaft 45 about the first direction Z and is fixedly connected to the mounting base 10.

[0098] In this embodiment of the utility model, the fifth rotating shaft 45 is connected to the fourth mounting member 54 and the adapter 55 respectively, which can serve as an adapter, allowing the fourth mounting member 54 to rotate relative to the adapter 55 around the first direction Z. Since the adapter 55 is connected to the other end of the second rotating shaft 42, and the fourth mounting member 54 is fixedly connected to the mounting base 10, the mounting base 10 can rotate relative to the second rotating shaft 42 around the first direction Z, which can further improve the position adjustment range of the adjustment probe module 30, making the adaptability of the battery cell balancing device stronger.

[0099] Specifically, the adapter 55 can be connected between the second rotating shaft 42 and the fifth rotating shaft 45, serving as a connector to ensure the reliability of the assembly between the second rotating shaft 42 and the fifth rotating shaft 45. The adapter 55 can be a U-shaped plate, and both ends of the fifth rotating shaft 45 can be connected to the two end side plates of the adapter 55 respectively. The side of the adapter 55 facing away from the fifth rotating shaft 45 can be fixedly connected to the second rotating shaft 42.

[0100] Specifically, the fourth mounting component 54 connects the fifth rotating shaft 45 and the mounting base 10, serving as a transition to ensure the reliability of the assembly between the fifth rotating shaft 45 and the mounting base 10. The fifth rotating shaft 45 can extend along the first direction Z, and the fourth mounting component 54 can be sleeved on the fifth rotating shaft 45 to improve the reliability of the fourth mounting component 54 rotating relative to the transition component 55 around the first direction Z. Since the mounting base 10 is relatively large, under the constraint of the transition component 55, the fourth mounting component 54 can drive the mounting base 10 to rotate within a range of 180 degrees or close to 180 degrees. Thus, after precise positioning of the mounting base 10, the mounting base 10 can also have a 180-degree rotational correction position.

[0101] Optionally, the mounting base 10 may include a first base body 11 and a connecting block 12, wherein the connecting block 12 is movably connected to the first base body 11 along the fourth direction X3, and the connecting block 12 is fixedly connected to the probe module 30; wherein the fourth direction X3 is perpendicular to the first direction Z.

[0102] In this embodiment of the invention, the connecting block 12 can drive the probe module 30 to move relative to the first base 11 along the fourth direction X3. After the position of the mounting base 10 is fixed, the position of the probe module 30 can be adjusted to perform equalization processing on different battery cells, thereby improving the efficiency of battery cell equalization. Moreover, by adjusting the position of the probe module 30, the electrode positions of battery cells of different specifications can be matched.

[0103] Specifically, the fourth direction X3 is perpendicular to the first direction Z, the fourth direction X3 can be parallel to or intersect with the second direction X1, and the fourth direction X3 can intersect with the third direction X2.

[0104] Optionally, the first base 11 may be provided with a slide rail 111 extending along the fourth direction X3; the connecting block 12 is slidably connected to the slide rail 111 along the fourth direction X3, which can improve the reliability of the connecting block 12 being slidably connected to the first base 11 along the fourth direction X3.

[0105] Optionally, such as Figure 5As shown, the cell balancing device further includes a second locking structure 72, which is connected to the connecting block 12 and the first base 11 respectively. The second locking structure 72 has a second unlocking state and a second locking state. In the second locking state, the second locking structure 72 locks the connecting block 12 and the first base 11. In the second unlocking state, the connecting block 12 can move relative to the first base 11.

[0106] In this embodiment of the invention, in the second locked state, the second locking structure 72 can be used to lock the connecting block 12 and the first base 11 to prevent the probe module 30 from shaking and to prevent disconnection between the probe module 30 and the battery cell, thereby ensuring the reliability and stability of the probe module 30 in balancing the battery cell. In the second unlocked state, the connecting block 12 can move relative to the first base 11, and the connection between the probe module 30 and different battery cells can be adjusted.

[0107] Specifically, the second locking structure 72 can be installed on the connecting block 12 so that the connecting block 12 can drive the second locking structure 72 to move together. The connecting block 12 can be respectively set with the second locking structure 72 and the probe module 30 to ensure the reliability of the position adjustment of the probe module 30.

[0108] Specifically, the structure of the second locking structure 72 may be the same as or different from that of the first locking structure 71. The locking principle of the second locking structure 72 can be referred to the first locking structure 71. It will not be described again in this embodiment of the present invention.

[0109] Specifically, the surfaces of the mounting base 10 and the probe module 30 can be insulated to avoid interference with cell balancing.

[0110] Optionally, the number of probe modules 30 can be at least two, with each probe module 30 corresponding to a connection block 12; one probe module 30 is used to electrically connect to the positive electrode of the battery cell, and the other probe module 30 is used to electrically connect to the negative electrode of the battery cell.

[0111] In this embodiment of the invention, by connecting two probe modules 30 to the positive and negative terminals of the battery cell respectively, electrical conduction of the battery cell can be achieved, which can improve the reliability and stability of the battery cell equalization process.

[0112] Optionally, the base 20 includes a second base body 21, a support column 22, and a brake wheel 23; one side of the second base body 21 is fixedly installed to the bracket, and the other side is fixedly installed to the brake wheel 23; the support column extends along the first direction Z, and the support column is fixedly connected to both ends of the first rotating shaft 41 respectively.

[0113] In this embodiment, the column extends along the first direction Z, aligning its extension direction with that of the first rotating shaft 41, thereby improving the structural stability of assembling the first rotating shaft 41 to the column. The second base 21 can serve as a carrier for the column, ensuring the overall structural stability of the cell balancing device. Furthermore, the cell balancing device can be transported via brake wheels 23, improving the ease of handling and saving manpower.

[0114] Specifically, the brake wheel 23 may have a self-locking structure, which can lock the brake wheel 23 after the battery cell equalization device is moved to a designated position.

[0115] In this embodiment of the invention, when a cell in a battery pack or energy storage system has a problem, a balancing test needs to be performed on the battery pack or energy storage system. The specific implementation includes: First, after confirming the battery pack size and the approximate location of the cell to be balanced, the position of the cell balancing device is coarsely positioned by adjusting the brake wheel 23; Second, the height of the first mounting member 51 in the first direction Z is adjusted so that the mounting base 10 matches the height of the battery pack, and the second mounting member 52, the third mounting member 53, and the fourth mounting member 54 are adjusted to adjust the horizontal position of the mounting base 10; Third, the position of the connecting block 12 on the first base 11 is adjusted to fine-tune the lateral position of the probe module 30 in the horizontal direction, further accurately locating the cell position so that the probe 32 is electrically connected to the cell's terminal post, and then locked by the second locking structure 72 to prevent the probe 32 from loosening and affecting the balancing test effect; Fourth, the balancing instrument is connected to the probe 32 through a wiring harness, the balancing instrument is started, and the balancing test begins.

[0116] The cell equalization device described in this application embodiment has at least the following advantages:

[0117] In this embodiment of the invention, the probe module is mounted on the mounting base, which is connected to the second rotating shaft. The second rotating shaft is also connected to the first mounting member, which is further connected to the first rotating shaft, and the first rotating shaft is also connected to the base. This allows the probe module to be positioned relative to the mounting base via the transmission mechanism. Furthermore, the first mounting member can rotate around the first direction and can move up and down along the first direction. The second rotating shaft can rotate around the second direction. Thus, under the drive of the transmission mechanism, the probe module can rotate around the first direction, move up and down along the first direction, and rotate around the second direction. This allows for diverse position adjustments of the probe module, enabling compatibility with equalization testing of cells of different specifications and improving the adaptability of the equalization device.

[0118] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0119] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0120] The present invention provides a detailed description of a cell balancing device. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​the present invention. At the same time, those skilled in the art will know that there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A cell balancing device, characterized in that, include: The base (20), mounting base (10), probe module (30), and transmission mechanism (40) are included; among which, The transmission mechanism (40) includes a first rotating shaft (41), a second rotating shaft (42), and a first mounting member (51). The first rotating shaft (41) is connected to the base (20). The first mounting member (51) is rotatably connected to the first rotating shaft (41) about a first direction (Z), and the first mounting member (51) is movably connected to the first rotating shaft (41) along the first direction (Z). One end of the second rotating shaft (42) is rotatably connected to the first mounting member (51) about a second direction (X1), and / or the other end of the second rotating shaft (42) is rotatably connected to the mounting base (10) about a second direction (X1), the second direction (X1) being perpendicular to the first direction (Z); The probe module (30) is installed on the mounting base (10) and is used to connect the battery cell and perform voltage equalization on the battery cell.

2. The cell balancing device according to claim 1, characterized in that, The transmission mechanism (40) also includes a second mounting component (52) and a third rotating shaft (43); The end of the second rotating shaft (42) away from the first mounting member (51) is connected to the second mounting member (52), and the second mounting member (52) is rotatably connected to the first mounting member (51) about the second direction (X1) through the second rotating shaft (42); One end of the third rotating shaft (43) is rotatably connected to the second mounting member (52) about the first direction (Z), and / or the other end of the third rotating shaft (43) is rotatably connected to the mounting base (10) about the first direction (Z).

3. The cell balancing device according to claim 2, characterized in that, The transmission mechanism (40) also includes a third mounting component (53) and a fourth rotating shaft (44); The other end of the third rotating shaft (43) is connected to the third mounting member (53); the third mounting member (53) is rotatably connected to the second mounting member (52) about the first direction (Z) via the third rotating shaft (43); One end of the fourth rotating shaft (44) is rotatably connected to the third mounting member (53) about a third direction (X2), and / or the other end of the fourth rotating shaft (44) is rotatably connected to the mounting base (10) about a third direction (X2), which is perpendicular to the first direction (Z).

4. The cell balancing device according to claim 3, characterized in that, The second rotating shaft (42) extends along the second direction (X1), the third rotating shaft (43) extends along the first direction (Z), the fourth rotating shaft (44) extends along the third direction, and the transmission mechanism (40) includes a first rolling bearing (61), a second rolling bearing (62), a third rolling bearing (63), a fourth rolling bearing (64), and a fifth rolling bearing (65). One end of the second rotating shaft (42) is assembled with the first mounting member (51) through the first rolling bearing (61), and the other end of the second rotating shaft (42) is assembled with the second mounting member (52) through the second rolling bearing (62); One end of the third rotating shaft (43) is assembled with the second mounting member (52) via the third rolling bearing (63), and the other end of the third rotating shaft (43) is assembled with the third mounting member (53) via the fourth rolling bearing (64); One end of the fourth rotating shaft (44) is assembled with the third mounting component (53) via the fifth rolling bearing (65).

5. The cell balancing device according to claim 1, characterized in that, The first mounting member (51) is provided with a mounting hole (511) extending through the first direction (Z); The first rotating shaft (41) extends along the first direction (Z) and passes through the mounting hole (511).

6. The cell balancing device according to claim 5, characterized in that, The cell balancing device includes a first locking structure (71), which is connected to the first mounting member (51) and the first rotating shaft (41) respectively. The first locking structure (71) has a first unlocked state and a first locked state. In the first locked state, the first locking structure (71) locks the first mounting member (51) and the first rotating shaft (41). In the first unlocked state, the first mounting member (51) can move relative to the first rotating shaft (41).

7. The cell balancing device according to claim 1, characterized in that, The transmission mechanism (40) includes a connector (55), a fifth rotating shaft (45), and a fourth mounting component (54), wherein the connector (55) is connected to the other end of the second rotating shaft (42); The fifth rotating shaft (45) extends along the first direction (Z), and the fifth rotating shaft (45) is fixedly connected to the adapter (55); The fourth mounting component (54) is rotatably connected to the fifth rotating shaft (45) about the first direction (Z), and the fourth mounting component (54) is fixedly connected to the mounting base (10).

8. The cell balancing device according to claim 7, characterized in that, The mounting base (10) includes a first base body (11) and a connecting block (12). The connecting block (12) is movably connected to the first base body (11) along the fourth direction (X3). The connecting block (12) is fixedly connected to the probe module (30). The fourth direction (X3) is perpendicular to the first direction (Z).

9. The cell balancing device according to claim 8, characterized in that, The first seat (11) is provided with a slide rail (111) extending along the fourth direction (X3); The connecting block (12) is slidably connected to the slide rail (111) along the fourth direction (X3).

10. The cell balancing device according to claim 8, characterized in that, The cell equalization device includes a second locking structure (72), which is connected to the connecting block (12) and the first base (11) respectively. The second locking structure (72) has a second unlocked state and a second locked state. In the second locked state, the second locking structure (72) locks the connecting block (12) and the first base (11). In the second unlocked state, the connecting block (12) can move relative to the first base (11).

11. The cell balancing device according to claim 8, characterized in that, The number of probe modules (30) is at least two, and the probe modules (30) are configured in a one-to-one correspondence with the connecting blocks (12); One of the probe modules (30) is used to electrically connect to the positive electrode of the battery cell, and the other probe module (30) is used to electrically connect to the negative electrode of the battery cell.

12. The cell balancing device according to claim 1, characterized in that, The base (20) includes a second seat body (21), a support column (22), and a brake wheel (23); One side of the second seat (21) is fixed to the support column (22), and the other side is fixed to the brake wheel (23); The support column (22) extends along the first direction (Z) and is fixedly connected to both ends of the first rotating shaft (41).

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