Lithium battery top-speed voltage-sharing equipment

Abstract

The utility model relates to the technical field of lithium battery processing, and discloses lithium battery top speed voltage equalizing equipment which comprises a voltage equalizing seat, a rotating shaft is rotatably mounted at the upper end of the voltage equalizing seat, a voltage equalizing table is fixedly mounted at the top of the rotating shaft, a plurality of voltage equalizing frames are arranged at the edge of the upper end of the voltage equalizing table, and lithium battery packs are placed in the voltage equalizing frames. Fixing frames are symmetrically mounted at the upper end of the pressure equalizing seat, a rotating shaft is rotatably mounted between the upper ends of the fixing frames, a pressure equalizing mechanism is arranged on the rotating shaft, and a movement mechanism for driving the pressure equalizing table to rotate is arranged between the lower ends of the fixing frames. According to the utility model, 90-degree intermittent rotation of the voltage-sharing table at the horizontal position is realized, and then the voltage-sharing table is matched with the voltage-sharing mechanism, so that rapid voltage-sharing of the lithium batteries is realized, and the voltage-sharing requirement of a large batch of lithium batteries is met; and the movement mechanism and the pressure equalizing mechanism are driven by one power source, so that the operation cost of the pressure equalizing equipment is further reduced, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery processing, in particular to a lithium battery extremely fast pressure equalizing device. Background Art

[0002] Lithium battery voltage balancing is a crucial concept and practice in lithium battery packs. When lithium batteries are connected in series, differences in internal resistance and capacity between individual cells can lead to inconsistent terminal voltages during charging and discharging. Excessive voltage variations can affect the performance, lifespan, and even safety of the battery pack.

[0003] To solve this problem, lithium battery voltage balancing is required. There are various methods for voltage balancing, such as passive balancing, which uses resistors to dissipate the energy of the higher-voltage cells, thereby achieving voltage balancing; and active balancing, which uses energy transfer to transfer the energy of the higher-voltage cells to the lower-voltage cells, achieving voltage balancing.

[0004] However, the existing lithium battery equalization equipment has low efficiency and requires manual shutdown during pressure equalization, which seriously affects the pressure equalization efficiency of the lithium battery. Utility Model Content

[0005] The purpose of the present invention is to provide a lithium battery rapid voltage equalization device to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A lithium battery extremely fast pressure equalizing device comprises a pressure equalizing seat, a rotating shaft is rotatably mounted on the upper end of the pressure equalizing seat, a pressure equalizing platform is fixedly mounted on the top of the rotating shaft, a plurality of pressure equalizing frames are arranged on the upper edge of the pressure equalizing platform, a lithium battery pack is placed inside the pressure equalizing frame, a fixing frame is symmetrically mounted on the upper end of the pressure equalizing seat, a rotating shaft is rotatably mounted between the upper ends of the fixing frames, a pressure equalizing mechanism is arranged on the rotating shaft, and a motion mechanism for driving the pressure equalizing platform to rotate is arranged between the lower ends of the fixing frames.

[0008] As an improved solution of the present invention: the pressure equalizing mechanism includes a guide plate fixed on one of the fixed frames, a pressure equalizing frame is slidably installed on the guide plate, a pressure equalizing plate is installed at the bottom of the pressure equalizing frame, a pressure equalizer is installed on the pressure equalizing plate, and a plurality of pressure equalizing electrodes are electrically installed at the bottom of the pressure equalizer. The pressure equalizer is also electrically connected to a control panel installed on the fixed frame through a wire, and the pressure equalizing mechanism also includes a driving component.

[0009] As an improved solution of the present invention: the driving assembly includes a driving arm arranged on the rotating shaft, the driving arm is sleeved with a driving cylinder, the driving cylinder is fixedly mounted with a driving frame, and the driving frame is hingedly mounted on the pressure equalizing frame.

[0010] As an improved solution of the present utility model: the motion mechanism includes a limit plate fixedly mounted on a fixed frame, a motion shaft is rotatably mounted between the limit plates, a locking ring is mounted on the motion shaft through a symmetrically arranged special-shaped frame, the locking ring is an open structure design, a toggle column is also fixedly mounted on the motion shaft, and the motion mechanism also includes a motion component.

[0011] As an improved solution of the present utility model: the moving component includes a moving roller fixedly installed on a rotating shaft, a plurality of moving grooves are provided on the outside of the moving roller, the moving grooves cooperate with the toggle column, a locking disk is fixedly installed on the bottom of the moving roller, a plurality of locking grooves are provided at the edge of the locking disk, and the locking grooves cooperate with the locking ring.

[0012] As an improved solution of the present invention: a driving pulley and a driven pulley are fixedly installed on the same end of the motion shaft and the rotating shaft, a transmission belt is installed between the driving pulley and the driven pulley, and the output end of the motion motor is connected to the end of the motion shaft away from the driving pulley, and the motion motor is installed on a fixed frame.

[0013] As an improved solution of the present invention: the number of the pressure equalizing frames and the number of the movement grooves are four, and the movement grooves are arc-shaped groove structures, and the head and tail structures differ by 90° in horizontal positions.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The motion mechanism is set up to achieve intermittent rotation of 90 degrees in the horizontal position, and then cooperate with the pressure equalization mechanism to achieve rapid pressure equalization of lithium batteries, meeting the pressure equalization needs of large quantities of lithium batteries;

[0016] 2. By arranging a driving pulley and a driven pulley between the motion shaft and the rotating shaft, the motion mechanism and the pressure equalizing mechanism are driven by one power source, which further reduces the operating cost of the pressure equalizing equipment and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view structural diagram of the utility model;

[0018] Figure 2 This is a side structural diagram of the present utility model;

[0019] Figure 3 It is a structural diagram of the motion mechanism in the utility model;

[0020] Figure 4 It is a structural diagram of the pressure equalizing mechanism in the utility model.

[0021] In the figure: 1. pressure equalizing seat; 2. fixing frame; 3. limiting plate; 4. moving motor; 5. moving shaft; 6. rotating shaft; 7. pressure equalizing table; 8. pressure equalizing frame; 9. rotating shaft; 10. control panel; 11. wire; 12. driving arm; 13. driving cylinder; 14. driving frame; 15. pressure equalizing frame; 16. guide plate; 17. pressure equalizing plate; 18. belt; 19. driven pulley; 20. driving pulley; 21. special-shaped frame; 22. locking ring; 23. moving roller; 24. moving groove; 25. locking disk; 26. locking groove; 27. pressure equalizer; 28. pressure equalizing electrode; 29. ​​toggle column. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second" and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features limited to "first", "second" and the like may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0026] Example 1

[0027] See Figures 1 to 4 In an embodiment of the utility model, a lithium battery extremely fast pressure equalizing device includes a pressure equalizing seat 1, a rotating shaft 6 is rotatably installed on the upper end of the pressure equalizing seat 1, a pressure equalizing platform 7 is fixedly installed on the top of the rotating shaft 6, a plurality of pressure equalizing frames 8 are provided at the edge of the upper end of the pressure equalizing platform 7, a lithium battery pack is placed inside the pressure equalizing frame 8, a fixing frame 2 is symmetrically installed on the upper end of the pressure equalizing seat 1, a rotating shaft 9 is rotatably installed between the upper ends of the fixing frames 2, a pressure equalizing mechanism is provided on the rotating shaft 9, and a motion mechanism for driving the pressure equalizing platform 7 to rotate is provided between the lower ends of the fixing frames 2.

[0028] During the pressure equalization process of the lithium battery, the entire pressure equalization platform 7 is rotated intermittently by 90° horizontally through the motion mechanism. When the pressure equalization platform 7 is suspended, on the one hand, the lithium battery pack at the corresponding position is pressure equalized under the action of the pressure equalization mechanism. On the other hand, the staff removes the previously pressure-equalized lithium batteries and places new lithium batteries to be pressure-equalized. Finally, the extremely fast pressure equalization operation of the lithium battery is achieved, and the operation without stopping is guaranteed, which further ensures the pressure equalization efficiency.

[0029] In one case of this embodiment, the voltage equalizing mechanism includes a guide plate 16 fixed on one of the fixed frames 2, a voltage equalizing frame 15 is slidably mounted on the guide plate 16, a voltage equalizing plate 17 is mounted at the bottom of the voltage equalizing frame 15, a voltage equalizer 27 is mounted on the voltage equalizing plate 17, and a plurality of voltage equalizing electrodes 28 are electrically mounted at the bottom of the voltage equalizer 27. The voltage equalizer 27 is also electrically connected to a control panel 10 mounted on the fixed frame 2 through a wire 11, and the voltage equalizing mechanism also includes a driving component.

[0030] The driving assembly includes a driving arm 12 arranged on the rotating shaft 9 , a driving cylinder 13 is sleeved on the driving arm 12 , a driving frame 14 is fixedly mounted on the driving cylinder 13 , and the driving frame 14 is hingedly mounted on the pressure equalizing frame 15 .

[0031] During the rotation of the rotating shaft 9, the driving arm 12 rotates, and then with the cooperation of the driving cylinder 13 and the driving frame 14, the equalizing frame 15 moves back and forth linearly under the restriction of the guide plate 16, and then under the action of the equalizer 27, the equalizing electrode 28 comes into contact with the single electrode on the lithium battery pack, thereby performing charging and discharging operations on multiple single batteries, ultimately ensuring the equalizing operation purpose of the entire lithium battery pack.

[0032] In addition, in the preferred case of this embodiment, the motion mechanism includes a limit plate 3 fixedly mounted on the fixed frame 2, a motion shaft 5 is rotatably mounted between the limit plates 3, a locking ring 22 is mounted on the motion shaft 5 through a symmetrically arranged special-shaped frame 21, and the locking ring 22 is an open structure design. A toggle column 29 is also fixedly mounted on the motion shaft 5, and the motion mechanism also includes a motion component.

[0033] Among them, the moving component includes a moving roller 23 fixedly installed on the rotating shaft 9, and a plurality of moving grooves 24 are provided on the outside of the moving roller 23. The moving grooves 24 cooperate with the toggle column 29. A locking disk 25 is fixedly installed on the bottom of the moving roller 23, and a plurality of locking grooves 26 are provided at the edge of the locking disk 25. The locking grooves 26 cooperate with the locking ring 22.

[0034] Furthermore, in this embodiment, the number of the pressure equalizing frames 8 and the number of the movement slots 24 are both four, and the movement slots 24 are arc-shaped slot structures, with the head and tail structures differing by 90° in horizontal positions.

[0035] During the continuous rotation of the moving shaft 5, the toggle column 29 and the locking ring 22 will be driven to rotate synchronously. When the toggle column 29 moves to cooperate with the moving groove 24, the entire pressure equalizing platform 7 is driven to rotate synchronously through the rotating shaft 6 under the action of the moving roller 23. When the toggle column 29 does not cooperate with the moving groove 24, the moving shaft 5 continues to rotate, which will cause the locking ring 22 to move to the locking groove 26 position, avoiding the entire pressure equalizing platform 7 from continuing to rotate due to inertia, further ensuring the reliability of the pressure equalizing equipment.

[0036] Example 2

[0037] In addition, in order to further reduce the motion cost of the device, the present invention also provides another embodiment, which differs from the above embodiment in that, the motion shaft 5 and the rotating shaft 9 are respectively fixedly mounted with a driving pulley 20 and a driven pulley 19 on the same side, a transmission belt 18 is installed between the driving pulley 20 and the driven pulley 19, and the end of the motion shaft 5 away from the driving pulley 20 is connected to the output end of the motion motor 4, which is mounted on the fixed frame 2. Through the arrangement of the two pulleys, the pressure equalizing mechanism and the motion mechanism use a single power source.

[0038] In summary, starting the motion motor 4, under the action of the motion mechanism, will cause the voltage-equalizing platform 7 to intermittently rotate 90 degrees, and then cooperate with the voltage-equalizing electrode 28 on the voltage-equalizing mechanism to achieve rapid voltage equalization of the lithium battery. Before voltage equalization, the staff needs to debug and coordinate the falling time of the voltage-equalizing electrode 28 with the timing of the voltage-equalizing platform 7, so that when the voltage-equalizing electrode 28 moves downward, the lithium battery pack corresponding to the voltage-equalizing electrode 28 is in a non-moving and resting state, thereby ensuring the reliability of the entire voltage-equalizing equipment.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lithium battery rapid pressure equalizing device, comprising a pressure equalizing seat (1), characterized in that: The upper end of the pressure equalizing seat (1) is rotatably mounted with a rotating shaft (6), the top of the rotating shaft (6) is fixedly mounted with a pressure equalizing platform (7), a plurality of pressure equalizing frames (8) are arranged at the edge of the upper end of the pressure equalizing platform (7), and a lithium battery pack is placed inside the pressure equalizing frame (8), the upper end of the pressure equalizing seat (1) is symmetrically mounted with a fixing frame (2), the upper ends of the fixing frames (2) are rotatably mounted with a rotating shaft (9), a pressure equalizing mechanism is arranged on the rotating shaft (9), and a motion mechanism for driving the pressure equalizing platform (7) to rotate is arranged between the lower ends of the fixing frames (2).

2. A lithium battery rapid voltage equalization device according to claim 1, characterized in that: The voltage equalizing mechanism includes a guide plate (16) fixed on one of the fixing frames (2), a voltage equalizing frame (15) is slidably mounted on the guide plate (16), a voltage equalizing plate (17) is mounted at the bottom of the voltage equalizing frame (15), a voltage equalizer (27) is mounted on the voltage equalizing plate (17), a plurality of voltage equalizing electrodes (28) are electrically mounted at the bottom of the voltage equalizer (27), the voltage equalizer (27) is also electrically connected to a control panel (10) mounted on the fixing frame (2) via a wire (11), and the voltage equalizer mechanism also includes a driving component.

3. The lithium battery rapid voltage equalization device according to claim 2, characterized in that: The driving assembly comprises a driving arm (12) arranged on a rotating shaft (9), a driving cylinder (13) sleeved on the driving arm (12), a driving frame (14) fixedly mounted on the driving cylinder (13), and the driving frame (14) hingedly mounted on the pressure equalizing frame (15).

4. The lithium battery rapid voltage equalization device according to claim 1, characterized in that: The motion mechanism comprises a limit plate (3) fixedly mounted on a fixed frame (2), a motion shaft (5) being rotatably mounted between the limit plates (3), a locking ring (22) being mounted on the motion shaft (5) via a symmetrically arranged special-shaped frame (21), the locking ring (22) being of an open structure design, a toggle column (29) being fixedly mounted on the motion shaft (5), and the motion mechanism further comprising a motion assembly.

5. The lithium battery rapid voltage equalization device according to claim 4, characterized in that: The motion assembly comprises a motion roller (23) fixedly mounted on a rotating shaft (9), a plurality of motion grooves (24) being provided on the outer side of the motion roller (23), the motion grooves (24) being coordinated with the toggle column (29), a locking disk (25) being fixedly mounted on the bottom of the motion roller (23), a plurality of locking grooves (26) being provided at the edge of the locking disk (25), the locking grooves (26) being coordinated with the locking ring (22).

6. The lithium battery rapid voltage equalization device according to claim 5, characterized in that: A driving pulley (20) and a driven pulley (19) are fixedly mounted on one end of the motion shaft (5) and the rotating shaft (9), respectively. A transmission belt (18) is mounted between the driving pulley (20) and the driven pulley (19). An end of the motion shaft (5) away from the driving pulley (20) is connected to an output end of a motion motor (4), and the motion motor (4) is mounted on a fixed frame (2).

7. The lithium battery rapid voltage equalization device according to claim 6, characterized in that: The number of the pressure equalizing frame (8) and the number of the movement grooves (24) are both four, and the movement grooves (24) are arc-shaped groove structures, with the head and tail structures differing by 90 degrees in horizontal positions.

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