Device convenient for battery formation feeding and positioning

Abstract

The utility model belongs to the technical field of battery formation, and discloses a device convenient for feeding and positioning in formation of a soft package battery, which comprises a battery placing table for placing a battery to be detected, a battery positioning device and a test clamping assembly, the battery positioning device is fixed on one side of the battery placing table and is used for positioning the side edge of the to-be-detected battery; the test clamping assembly is arranged in front of the tab positioning position of the to-be-detected battery so as to clamp the tab of the to-be-detected battery. The battery formation feeding device is simple in structure and convenient to operate, automatic and rapid positioning can be achieved during battery formation feeding, the situation that a battery to be detected deviates is avoided, feeding speed is high, precision is high, and production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery formation, in particular to a device that is convenient for positioning battery formation loading. Background Art

[0002] As a type of lithium-ion battery, soft-pack batteries occupy a key position in the lithium-ion battery market due to their unique packaging, excellent performance characteristics, and broad application prospects. After production, soft-pack batteries typically require formation. This process activates the active materials in the battery, forms a stable SEI film, and improves the battery's overall performance. Currently, the device used for battery formation is a formation cabinet, which performs the initial charge and discharge cycles on newly manufactured batteries, thereby activating the battery and forming a stable electrochemical structure, enabling the battery to achieve optimal operating conditions.

[0003] While existing formation cabinets can form batteries, most on the market use a circuit test board to secure the batteries. This requires manual placement of the batteries onto the test board during loading. This makes it difficult to align the tabs horizontally during manual loading, resulting in misalignment of the battery placement. If batteries shift during the formation process, the following issues may arise:

[0004] 1. The connection between the internal components of the battery is not tight or the contact is poor, which affects the current conduction and energy conversion efficiency. This efficiency reduction will directly affect the output power and service life of the battery.

[0005] 2. The battery heat distribution is uneven during the charging and discharging process, affecting the performance stability of the battery;

[0006] 3. Conductive components inside the battery are in contact or close to each other to a dangerous degree, increasing the risk of short circuit;

[0007] 4. Affect the thermal management performance of the battery, resulting in the heat generated by the battery during the charging and discharging process cannot be dissipated in time, which will increase the risk of thermal runaway of the battery and cause more serious safety problems.

[0008] 5. Placement deviation usually requires correction or rework in the subsequent production process, which will increase production costs and scrap rate. The production line may also need to pause or adjust parameters to correct the position offset problem, further reducing production efficiency and increasing time costs.

[0009] Based on the above analysis, it can be seen that if the battery position deviation is caused during loading in the battery formation process through the battery formation cabinet, a series of problems are likely to occur. Therefore, this field urgently needs to improve the existing soft-pack battery formation loading device to solve the problem that the position of the tab is difficult to align during manual loading in the existing technology, resulting in the position offset of the battery placement. Utility Model Content

[0010] The purpose of the utility model is to provide a device that is convenient for positioning battery formation loading. The device has a simple structure and is easy to operate. It can realize automatic and rapid positioning during battery formation loading, avoiding the situation where the battery to be detected is offset. The device has a fast loading speed and high precision, greatly improving production efficiency.

[0011] The technical solution adopted by the utility model to solve its technical problems is:

[0012] A device for facilitating battery formation and loading positioning includes a battery placement table for placing batteries to be tested, a battery positioning device, and a test clamping assembly. The battery positioning device is fixed to one side of the battery placement table and is used to position the side of the battery to be tested. The test clamping assembly is arranged in front of the positioning position of the tab of the battery to be tested to facilitate clamping the tab of the battery to be tested.

[0013] Furthermore, it also includes a test pressing assembly, which is arranged above the battery placement table and is used to press the upper surface of the battery to be tested and assist the test clamping assembly in clamping the tabs of the battery to be tested.

[0014] Furthermore, the battery positioning device is provided with a positioning groove that matches the battery to be tested.

[0015] Furthermore, the test clamping assembly includes a first driving device, a crossbeam and a test clamping jaw, the crossbeam is fixed to the end of the output shaft of the first driving device, and the test clamping jaw is arranged on the crossbeam.

[0016] Furthermore, the test jaw is slidably connected to the crossbeam.

[0017] Furthermore, the crossbeam is a slide rail, a slide block is provided on the slide rail, and the test clamp is fixed on the slide block.

[0018] Furthermore, the test pressing assembly includes a second drive device and a battery pressure plate. The second drive device is fixed on the fixed frame, the battery pressure plate is fixed at the end of the output shaft of the second drive device, and the output shaft of the second drive device is perpendicular to the battery placement table, and the battery pressure plate is parallel to the battery placement table.

[0019] Furthermore, the test pressing assembly also includes a test pressing claw, and the test pressing claw is arranged above the tab, which is used to assist the test clamping assembly in clamping the tab of the battery to be tested during the pressing process of the battery pressure plate.

[0020] Furthermore, the test pressure claw is an L-shaped structure, and the test pressure claw includes a first panel and a second panel; one end of the first panel is fixed on the battery pressure plate, and the other end is fixedly connected to the upper end of the second panel, and the lower end of the second panel is provided with a U-shaped groove that cooperates with the test clamp.

[0021] Furthermore, it also includes a support assembly, which includes a base plate, a support plate and a fixing frame, and the base plate and the fixing frame are connected through the support plate; the battery placement table and the test clamping assembly are both fixed on the base plate, and the test pressing assembly is fixed on the fixing frame.

[0022] Furthermore, it also includes an articulated rotating device, and the articulated rotating device is hinged to the support plate on the side close to the battery positioning device; a rotation angle limiting plate is also provided on the side of the articulated rotating device away from the support plate.

[0023] The beneficial effects of the present invention are:

[0024] The utility model utilizes a battery positioning device and a test clamping assembly to realize automatic and rapid positioning during battery formation and loading, eliminating the need for repeated alignment of the position of the battery to be tested, thus avoiding the situation where the battery to be tested is shifted. At the same time, the loading speed and accuracy of the battery to be tested are improved, greatly improving production efficiency. In addition, the device of the utility model has a simple structure, is easy to operate, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0026] Figure 1 This is a structural schematic diagram of the utility model in which the battery pressing plate is in an open state.

[0027] Figure 2 yes Figure 1 A structural diagram from another perspective.

[0028] Figure 3 yes Figure 2 A locally enlarged schematic diagram of point A in the middle.

[0029] Figure 4 It is a structural schematic diagram of the utility model in which the battery pressing plate is in a closed state.

[0030] Figure 5 yes Figure 4 A local enlarged schematic diagram of point B in the middle.

[0031] Figure 6 It will Figure 4 A schematic diagram of the structure after the middle support assembly is rotated 90°.

[0032] Figure 7 yes Figure 6 A left-view structural diagram of .

[0033] Figure 8 yes Figure 6 A schematic diagram of a three-dimensional structure.

[0034] Figure 9 yes Figure 8 A local enlarged schematic diagram of point C in the middle.

[0035] Figure: 1. Battery placement table; 2. Battery positioning device; 3. Test clamping assembly; 4. Test pressing assembly; 5. Support assembly; 6. Articulated rotation device; 7. Rotation angle limit plate; 8. Hinge; 9. Positioning groove; 10. Embedded portion; 11. Sliding block; 12. U-shaped groove; 13. Battery to be tested; 14. Tab; 15. Press claw sliding track

[0036] 301. First drive device; 302. Crossbeam; 303. Test clamp;

[0037] 401. Second drive device; 402. Battery pressure plate; 403. Test pressure claw;

[0038] 431. First panel; 432. Second panel;

[0039] 501. Base plate; 502. Support plate; 503. Fixed frame;

[0040] 601. First base; 602. Second base; 603. Connector; 604. Fixing platform; 605. Servo motor. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Example 1

[0043] like Figures 1 to 9As shown, a device for facilitating battery formation and loading positioning includes a battery placement table 1 for placing a battery to be tested 13, and also includes a battery positioning device 2, a test clamping assembly 3 and a test pressing assembly 4; the battery positioning device 2 is fixed to one side of the battery placement table 1, and is used to position the side of the battery to be tested 13; the test clamping assembly 3 is arranged in front of the positioning position of the tab 14 of the battery to be tested 13, and is used to clamp the tab 14 of the battery to be tested 13; the test pressing assembly 4 is arranged above the battery placement table 1, so as to press the upper surface of the battery to be tested 13 and assist the test clamping assembly 3 in clamping the tab 14 of the battery to be tested 13.

[0044] The battery placement table 1 in this embodiment is primarily used to place batteries 13 to be tested. The battery positioning device 2 can quickly position the battery 13 to be tested when it is placed, preventing the battery 13 from being shifted. When placing the battery 13 to be tested, the battery 13 to be tested is first placed on the battery placement table 1 against the battery positioning device 2. The test clamping assembly 3 is then activated to clamp the tab 14 on the battery 13 to be tested. The test pressing assembly 4 then presses the upper surface of the battery 13 to be tested. At the same time, the test pressing assembly 4 assists the test clamping assembly 3 in clamping the tab 14 of the battery 13 to be tested.

[0045] like Figure 1 、 Figures 4 to 6 As shown, in this embodiment, the battery positioning device 2 is a strip-shaped structure, and a positioning groove 9 is formed on the side of the battery positioning device 2 that contacts the battery to be tested 13. The battery to be tested 13 is provided with an inserting portion 10 that matches the positioning groove 9. When placing the battery to be tested 13, it is only necessary to align the inserting portion 10 with the positioning groove 9 and then push the inserting portion 10 forward along the positioning groove 9 to achieve positioning during placement.

[0046] like Figures 1 to 9As shown, in this embodiment, the test clamping assembly 3 includes a first drive device 301, a crossbeam 302, and a test clamping jaw 303. The crossbeam 302 is fixedly connected to the output shaft of the first drive device 301, and the test clamping jaw 303 is disposed on the crossbeam 302. The first drive device 301 is a cylinder that can drive the crossbeam 302 to advance in the direction where the tab 14 is hidden, thereby driving the test clamping jaw 303 on the crossbeam 302 to clamp the tab 14. The test clamping jaw 303 in this embodiment is a common clamping jaw in the prior art, and the number of clamping jaws corresponds to the number of tabs 14 (i.e., two). The test clamping jaws 303 are divided into two positive and negative poles, and a test circuit board is disposed inside the test clamping jaws 303. The two test clamping jaws 303 are respectively connected to the tab 14 of the battery 13 to be tested, so that the circuit board disposed in the clamping jaws is connected to the tab 14. The test jaw 303 of this embodiment is constructed of two hinged X-shaped clamping plates. Pressing one end tightens the other, thereby holding the tab 14 in place. This is similar to the principle of scissors. After the test jaw 303 clamps the tab 14, the testing method is the same as the principle of the clamping jaw and tab 14 in the prior art, and will not be further described here.

[0047] like Figure 1 、 Figure 2 、 Figures 4 to 9 As shown, in the present embodiment, the test pressing assembly 4 includes a second drive device 401 and a battery pressing plate 402, the second drive device 401 is fixed on the fixed frame 503, the battery pressing plate 402 is fixed to the end of the output shaft of the second drive device 401, and the output shaft of the second drive device 401 is perpendicular to the battery placement platform 1, and the battery pressing plate 402 is parallel to the battery placement platform 1. The second drive device 401 is an electric cylinder, and its function is to push the battery pressing plate 402 downward to press the upper surface of the battery to be tested 13, thereby providing a certain pressure for the formation of the battery to be tested 13. After the battery pressing plate 402 presses the battery to be tested 13, it can cover and compress the upper surface of the battery to be tested 13 to prevent the battery to be tested 13 from bulging during the formation process. The test pressing assembly 4 also includes a test pressing claw 403, and the test pressing claw 403 is arranged on the side of the battery pressing plate 402 corresponding to the position of the tab 14, for assisting the test clamping assembly 3 to clamp the tab 14 of the battery to be tested 13 during the downward pressure of the battery pressing plate 402. In this embodiment, the test pressure claw 403 is an L-shaped structure, and the test pressure claw 403 includes a first panel 431 and a second panel 432, the first panel 431 is parallel to the battery pressure plate 402, and the second panel 432 is perpendicular to the battery pressure plate 402; one end of the first panel 431 is fixed on the battery pressure plate 402, and the other end is fixedly connected to the upper end of the second panel 432, and the lower end of the second panel 432 is provided with a U-shaped groove 12 that cooperates with the test clamping assembly 3, and the U-shaped groove 12 clamps the test clamp 303 during the downward pressing process of the battery pressure plate 402, and then pushes the test clamp 303 downward so that the test clamp 303 clamps the pole ear 14.

[0048] like Figure 1 、 Figure 2 、 Figures 4 to 8 As shown, in this embodiment, a support assembly 5 is also included. The support assembly 5 includes a base plate 501, a support plate 502, and a fixing frame 503. The base plate 501 and the fixing frame 503 are connected by the support plate 502. There are two support plates 502, and they are located on both sides of the battery to be tested 13. The battery placement platform 1 and the test clamping assembly 3 are both fixed to the base plate 501, and the test pressing assembly 4 is fixed to the fixing frame 503. The support assembly 5 is mainly used to support the battery placement platform 1, the test clamping assembly 3, and the test pressing assembly 4.

[0049] like Figure 1 、 Figure 2 、 Figure 4 、 Figures 6 to 8 As shown, in this embodiment, an articulated rotating device 6 is further included, and the articulated rotating device 6 is hingedly connected to the support plate 502 on the side near the battery positioning device 2. The articulated rotating device 6 is hingedly connected to the support plate 502, so that the entire support assembly 5 is rotatable, so that the battery 13 to be tested can be rotated during testing, so that the gas generated by the battery during formation is concentrated on the air bag side.

[0050] A rotation angle limit plate 7 is also provided on the side of the articulated rotating device 6 away from the support plate 502. This limit plate 7 prevents the support assembly 5 from rotating too far, potentially affecting the testing process. In a preferred embodiment of this embodiment, the limit plate 7 abuts the support plate 502 after the support plate 502 rotates 90°, at which point the base plate 501 of the support assembly 5 is perpendicular to the horizontal plane. A battery positioning device 2 is fixed to the side of the battery placement platform 1 near the support assembly 5 to prevent the batteries 13 to be tested from slipping during the rotation of the support assembly 5.

[0051] like Figure 1 、 Figure 2 、 Figure 4 、 Figures 6 to 8As shown, in this embodiment, the articulated rotating device 6 includes a first base 601 and a second base 602, which are fixedly connected by a connecting member 603. The connecting member 603 has an outer columnar or plate-like structure. A fixed platform 604 is also provided on the first base 601 or the second base 602. A servo motor 605 is provided on the fixed platform 604. The output shaft of the servo motor 605 passes through the first base 601 or the second base 602 and is rotatably connected to the second base 602 or the first base 601. A hinged member 8 is provided on the support plate 502, which is fixedly connected to both the output shaft and the support plate 502. The hinged member 8 rotates with the output shaft, driving the support assembly 5 to rotate. This structure ensures the stability of the articulated rotating device 6, ensures smooth rotation of the support assembly 5, and provides sufficient power for the rotation of the support assembly 5.

[0052] Example 2

[0053] The structures of this embodiment are almost identical to those of the first embodiment. The only difference is that the test clamping assembly 3 of this embodiment is different from that of the reference document 1. The specific differences between this embodiment and the first embodiment are as follows:

[0054] like Figures 1 to 3 、 Figure 8 and Figure 9 As shown, in the present embodiment, the test jaw 303 is slidably connected to the crossbeam 302. Specifically, the crossbeam 302 is a slide rail, and a sliding block 11 is provided on the slide rail, and the test jaw 303 is fixed on the sliding block 11. The test jaw 303 in the present embodiment is designed to have a sliding structure that can take into account various models of batteries 13 to be tested. When the models of the batteries 13 to be tested are different, the positions of the tabs 14 will be different. At this time, it is only necessary to adjust the test sliding block 11 to slide on the crossbeam 302 to adapt to the corresponding model of the battery 13 to be tested. In the present embodiment, when the position of the test jaw 303 is moved, the position of the test pressure jaw 403 also needs to be adjusted accordingly. In actual design, the side of the battery pressure plate 402 corresponding to the test pressure jaw 403 can be designed as a track, and the test pressure jaw 403 can be slidably connected to the side of the battery pressure plate 402. Specifically, the test pressure claw 403 is slidably arranged on the side of the battery pressure plate 402, and the side of the battery pressure plate 402 that cooperates with the test pressure claw 403 is provided with a pressure claw sliding track 15. A pressure claw slider that matches the pressure claw sliding track is fixed to the test pressure claw 403. The pressure claw slider is not drawn in the drawings of this embodiment. Those skilled in the art can conventionally implement it according to the solution of this patent application, and will not be described in detail here.

[0055] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above is only a specific implementation method of the utility model and is not intended to limit the utility model. Any modifications, equivalent replacements and improvements made within the scope of the present utility model should be included in the scope of protection of the present utility model.

Claims

1. A device for facilitating battery formation and positioning, characterized in that: The invention comprises a battery placement platform (1) for placing a battery (13) to be tested, a battery positioning device (2) and a test clamping assembly (3); the battery positioning device (2) is fixed on one side of the battery placement platform (1) and is used to position the side of the battery (13) to be tested; and the test clamping assembly (3) is arranged in front of the positioning position of the tab (14) of the battery (13) to be tested so as to clamp the tab (14) of the battery (13) to be tested.

2. The device for facilitating battery formation loading and positioning according to claim 1, characterized in that: The invention also includes a test pressing assembly (4), which is arranged above the battery placement platform (1) and is used to press the upper surface of the battery to be tested (13) and assist the test clamping assembly (3) in clamping the tab (14) of the battery to be tested (13).

3. The device for facilitating battery formation loading and positioning according to claim 1 or 2, characterized in that: The battery positioning device (2) is provided with a positioning groove (9) that matches the battery (13) to be tested.

4. The device for facilitating battery formation loading and positioning according to claim 1 or 2, characterized in that: The test clamping assembly (3) comprises a first driving device (301), a crossbeam (302) and a test clamping jaw (303). The crossbeam (302) is fixed to the end of the output shaft of the first driving device (301), and the test clamping jaw (303) is slidably connected to the crossbeam (302).

5. The device for facilitating battery formation loading and positioning according to claim 4, characterized in that: The crossbeam (302) is a slide rail, a sliding block (11) is provided on the slide rail, and the test clamping claw (303) is fixed on the sliding block (11).

6. The device for facilitating battery formation loading and positioning according to claim 2 or 5, characterized in that: The test pressing assembly (4) includes a second driving device (401) and a battery pressing plate (402), wherein the second driving device (401) is fixed on a fixing frame (503), and the battery pressing plate (402) is fixed to the end of the output shaft of the second driving device (401), and the output shaft of the second driving device (401) is perpendicular to the battery placement platform (1), and the battery pressing plate (402) is parallel to the battery placement platform (1).

7. The device for facilitating battery formation loading and positioning according to claim 6, characterized in that: The test pressing assembly (4) further comprises a test pressing claw (403), and the test pressing claw (403) is arranged above the tab (14) and is used to assist the test clamping assembly (3) in clamping the tab (14) of the battery (13) to be tested during the downward pressing process of the battery pressing plate (402).

8. The device for facilitating battery formation loading and positioning according to claim 7, characterized in that: The test pressing claw (403) is an L-shaped structure, and the test pressing claw (403) includes a first panel (431) and a second panel (432); one end of the first panel (431) is fixedly connected to the battery pressing plate (402), and the other end is fixedly connected to the upper end of the second panel (432); the lower end of the second panel (432) is provided with a U-shaped groove (12) that matches the test clamping claw (303).

9. The device for facilitating battery formation loading and positioning according to claim 1, 2, 5, 7 or 8, characterized in that: The device further comprises a support assembly (5), the support assembly (5) comprising a base plate (501), a support plate (502) and a fixing frame (503), wherein the base plate (501) and the fixing frame (503) are connected via the support plate (502); the battery placement platform (1) and the test clamping assembly (3) are both fixed on the base plate (501), and the test pressing assembly (4) is fixed on the fixing frame (503).

10. The device for facilitating battery formation loading and positioning according to claim 9, characterized in that: It also includes an articulated rotating device (6), and the articulated rotating device (6) is articulated to a support plate (502) on a side close to the battery positioning device (2); a rotation angle limiting plate (7) is also provided on a side of the articulated rotating device (6) away from the support plate (502).

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