Charging and discharging detection device for electric tool lithium battery production

Abstract

The utility model discloses a charging and discharging detection device for electric tool lithium battery production, which comprises a support frame and pressing electric push rods, a plurality of groups of pressing electric push rods are arranged in the support frame, pressing push arms are arranged at the output ends of the pressing electric push rods, a connecting frame is arranged below the support frame, and the connecting frame is connected with the pressing push arms. The device comprises a connecting frame, the connecting frame is connected with a downward pressing push arm, a plurality of sets of detection frames are installed at the bottom end of the connecting frame at equal intervals, servo motors are symmetrically installed in the detection frames, two-way threaded rods are installed at the output ends of the servo motors, and the surfaces of the two-way threaded rods are sleeved with two sets of two-way threaded sleeves. According to the utility model, the lithium batteries can be conveniently and oppositely clamped, fixed and detected, the distance between the detection sleeves can be conveniently adjusted, a plurality of groups of lithium batteries can be conveniently subjected to downward-pressing elastic abutting detection, the lithium battery pole columns with different distances can be adapted, and the convenience and the flexibility of detection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charge and discharge detection devices, and particularly relates to a charge and discharge detection device for the production of lithium batteries for power tools. Background Technique

[0002] The charge and discharge test of lithium batteries is an important test method for evaluating the performance and capacity of lithium batteries. It measures and analyzes the energy storage and release capabilities of batteries by simulating the charging and discharging processes of batteries in actual use. This test method can intuitively judge the battery performance, determine whether the battery can be applied, whether it needs to be improved, and can be applied in the battery field. After the production of lithium is completed, it is necessary to conduct a charge and discharge test on it. The traditional test method is mostly to test one by one separately, and its test efficiency is relatively low. In order to better conduct a charge and discharge test on lithium batteries for power tools, a charge and discharge detection device for the production of lithium batteries for power tools is proposed.

[0003] As disclosed in a charge and discharge detection device for lithium battery production with the authorization announcement number CN215641718U, it includes an electrical connection box. A detection control box is installed on the lower surface of the electrical connection box. A lithium battery detector is installed inside the detection control box. A clamping fixture is installed on the upper surface inside the electrical connection box. A lithium battery is clamped and installed inside the clamping fixture. The output end electrode of the lithium battery detector is connected to a live wire. Heat dissipation nets are provided on the side surfaces of the electrical connection box and the detection control box. An electrical connection plate is installed on the lower surface inside the electrical connection box corresponding to the position of the lithium battery. A lithium battery electrode head is provided at the lower end of the lithium battery;

[0004] Although it realizes the setting of a lithium battery fixing structure, the lithium battery fixture is a spring automatic extrusion fixing structure. The structure of this device is concentrated and the volume is small. The electrical connection structure of the device is an insertion structure;

[0005] However, it does not solve the problem that the existing charge and discharge detection device is not convenient for conveniently clamping and fixing the lithium battery for detection in opposite directions and adjusting the distance between the detection sleeves, is not conducive to the downward pressing and elastic pressing detection of multiple groups of lithium batteries and adapting to the lithium battery poles with different distances, which affects the convenience and flexibility of detection. Content of the Utility Model

[0006] The purpose of the utility model is to provide a charge and discharge detection device for the production of lithium batteries for power tools, so as to solve the problems proposed in the above background technique that the charge and discharge detection device is not convenient for conveniently clamping and fixing the lithium battery for detection in opposite directions and adjusting the distance between the detection sleeves, is not conducive to the downward pressing and elastic pressing detection of multiple groups of lithium batteries and adapting to the lithium battery poles with different distances, which affects the convenience and flexibility of detection.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A charge and discharge detection device for the production of lithium batteries for power tools, including a support frame and a downward pressing electric push rod. A plurality of downward pressing electric push rods are installed inside the support frame. The output ends of the downward pressing electric push rods are all installed with downward pressing push arms. A connecting frame is arranged below the support frame, and the connecting frame is connected to the downward pressing push arms. A plurality of detection frames are installed at equal intervals at the bottom end of the connecting frame. Servo motors are symmetrically installed inside the detection frames. The output ends of the servo motors are all installed with bidirectional threaded rods. Two groups of bidirectional threaded sleeves are sleeved on the surfaces of the bidirectional threaded rods, and the bidirectional threaded sleeves are threadedly connected to the bidirectional threaded rods, and the bidirectional threaded sleeves are slidably connected to the detection frames. Detection sleeves are installed at the bottom ends of the bidirectional threaded sleeves. Springs are installed inside the detection sleeves. Detection contacts are installed at the bottom ends of the springs, and the detection contacts are slidably connected to the detection sleeves. A placement box is arranged outside the support frame.

[0008] Preferably, a plurality of lithium battery bodies are installed at equal intervals inside the placement box. Battery anodes are installed at the tops of the lithium battery bodies. Battery cathodes are installed at the tops of the lithium battery bodies on one side of the battery anodes.

[0009] Preferably, a connecting plate is installed at the top end of the support frame, and a handle is installed at the top end of the connecting plate.

[0010] Preferably, a charge and discharge detector is installed at the top end of the connecting plate on one side of the handle, and a clamping electric push rod is movably installed at the top end of the connecting plate on the other side of the handle.

[0011] Preferably, slide rails are installed at the top ends of the support frame on both sides of the connecting plate, and two groups of sliders are slidably installed on the surfaces of the slide rails.

[0012] Preferably, clamping frames are arranged on both sides of the placement box, and both ends of the clamping frames are respectively connected to the sliders.

[0013] Preferably, a clamping push arm is installed at the output end of the clamping electric push rod. A movable shaft is installed at the end of the clamping push arm away from the clamping electric push rod. Two groups of connecting arms are sleeved on the surface of the movable shaft, and the connecting arms are movably connected to the clamping push arm through the movable shaft.

[0014] Preferably, hinge shafts are installed at the ends of the connecting arms close to the sliders, and the connecting arms are movably connected to the sliders through the hinge shafts.

[0015] Compared with the prior art, the beneficial effects of the present utility model are: The charge and discharge detection device not only realizes convenient opposite clamping and fixing for detecting lithium batteries and adjusting the distance between the detection sleeves, facilitates the downward pressing elastic pressing detection of multiple lithium batteries and adapting to lithium battery poles with different distances, but also improves the convenience and flexibility of detection. Brief Description of the Drawings

[0016] Figure 1 It is a three - dimensional structure schematic diagram of the present utility model;

[0017] Figure 2 It is a three - dimensional structure schematic diagram of the clamping frame of the present utility model;

[0018] Figure 3 It is a three - dimensional structure schematic diagram of the placement box of the present utility model;

[0019] Figure 4 It is a side - view sectional structure schematic diagram of the detection frame of the present utility model;

[0020] Figure 5 It is a front - view sectional structure schematic diagram of the present utility model.

[0021] In the figure: 1. Placement box; 2. Clamping frame; 3. Lithium - battery body; 4. Handle; 5. Connecting plate; 6. Support frame; 7. Clamping electric push rod; 8. Charge - discharge detector; 9. Clamping push arm; 10. Movable shaft; 11. Connecting arm; 12. Hinge shaft; 13. Slide block; 14. Slide rail; 15. Battery anode; 16. Press - down electric push rod; 17. Press - down push arm; 18. Detection frame; 19. Connection frame; 20. Servo motor; 21. Bidirectional threaded rod; 22. Bidirectional threaded sleeve; 23. Detection sleeve; 24. Spring; 25. Detection contact; 26. Battery cathode. Detailed Description of the Preferred Embodiment

[0022] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features, and their effects of the present utility model as follows.

[0023] Please refer to Figures 1-5, an embodiment provided by the present utility model: a charge and discharge detection device for the production of electric tool lithium batteries, including a support frame 6 and a downward pressing electric push rod 16. A plurality of downward pressing electric push rods 16 are installed inside the support frame 6, and the downward pressing electric push rod 16 plays a role in power driving. The output ends of the downward pressing electric push rods 16 are all installed with downward pressing push arms 17. A connecting frame 19 is arranged below the support frame 6, and the connecting frame 19 is connected to the downward pressing push arm 17. A plurality of detection frames 18 are installed at equal intervals at the bottom end of the connecting frame 19. Servo motors 20 are symmetrically installed inside the detection frames 18, and the servo motors 20 play a role in power driving. The output ends of the servo motors 20 are all installed with bidirectional threaded rods 21. Two groups of bidirectional threaded sleeves 22 are sleeved on the surfaces of the bidirectional threaded rods 21, and the bidirectional threaded sleeves 22 are threadedly connected to the bidirectional threaded rods 21, and the bidirectional threaded sleeves 22 are slidably connected to the detection frames 18. Detection sleeves 23 are installed at the bottom ends of the bidirectional threaded sleeves 22. Springs 24 are installed inside the detection sleeves 23. Detection contacts 25 are installed at the bottom ends of the springs 24, and the detection contacts 25 are slidably connected to the detection sleeves 23. A placement box 1 is arranged outside the support frame 6;

[0024] When it is necessary to perform charge and discharge detection on electric tool lithium batteries, first stack a plurality of electric tool lithium batteries in sequence inside the placement box 1. Then, take the handle 4 and drive the whole device to move outside the placement box 1 through the handle 4. Connect the device to an external circuit. Then, turn on the clamping electric push rod 7. The clamping electric push rod 7 drives the clamping push arm 9 to move. The clamping push arm 9 drives two connecting arms 11 to rotate through the movable shaft 10. The connecting arms 11 drive the slider 13 to slide on the surface of the slide rail 14 through the hinge shaft 12. The two sliders 13 drive the two clamping frames 2 to move towards each other respectively, so that the clamping frames 2 contact the placement box 1 and clamp and fix the placement box 1. Then, turn on the downward pressing electric push rod 16. The downward pressing electric push rod 16 drives the downward pressing push arm 17 to move downward. The downward pressing push arm 17 drives the detection frame 18 to move downward through the connecting frame 19. The detection frame 18 drives the detection sleeve 23 and the detection contact 25 to move downward, so that the two detection contacts 25 respectively contact the battery anode 15 and the battery cathode 26. The spring 24 provides elastic support for the detection contact 25, so that the detection contact 25 always contacts the battery anode 15 and the battery cathode 26. Then, the charge and discharge detector 8 is used to complete the charge and discharge detection of the lithium battery body 3. The charge and discharge detector 8 is a product of the same type as Huipu HTB-2020. Its working principle is: first charge the battery fully, and then discharge it at a specific constant current, measure the voltage change of the battery during the discharge process, and calculate the capacity of the battery by calculating the discharge time and current. It realizes convenient opposite clamping and fixing for detecting lithium batteries, facilitates downward pressing and elastic pressing detection of multiple lithium batteries, and improves the convenience of detection;

[0025] Inside the placement box 1, multiple groups of lithium battery bodies 3 are installed at equal intervals. At the top of each lithium battery body 3, a battery anode 15 is installed, and at the top of the lithium battery body 3 on one side of the battery anode 15, a battery cathode 26 is installed.

[0026] At the top of the support frame 6, a connecting plate 5 is installed. At the top of the connecting plate 5, a handle 4 is installed. On the top of the connecting plate 5 on one side of the handle 4, a charge and discharge detector 8 is installed. On the top of the connecting plate 5 on the other side of the handle 4, a clamping electric push rod 7 is movably installed, and the clamping electric push rod 7 plays a role in power driving.

[0027] On the top of the support frame 6 on both sides of the connecting plate 5, slide rails 14 are installed. On the surface of each slide rail 14, two groups of sliders 13 are slidably installed. On both sides of the placement box 1, clamping frames 2 are provided, and both ends of the clamping frame 2 are respectively connected to the sliders 13.

[0028] At the output end of the clamping electric push rod 7, a clamping push arm 9 is installed. At the end of the clamping push arm 9 far from the clamping electric push rod 7, a movable shaft 10 is installed. On the surface of the movable shaft 10, two groups of connecting arms 11 are sleeved, and the connecting arms 11 are movably connected to the clamping push arm 9 through the movable shaft 10.

[0029] At the end of each connecting arm 11 close to the slider 13, a hinge shaft 12 is installed, and the connecting arm 11 is movably connected to the slider 13 through the hinge shaft 12.

[0030] When the pole column spacing of the lithium battery to be detected is different, turn on the servo motor 20. The servo motor 20 drives the bidirectional threaded rod 21 to rotate. Under the threaded connection between the bidirectional threaded rod 21 and the bidirectional threaded sleeve 22, and under the sliding fit between the bidirectional threaded sleeve 22 and the detection frame 18, the bidirectional threaded rod 21 drives the two groups of bidirectional threaded sleeves 22 to move towards each other. The two groups of bidirectional threaded sleeves 22 respectively drive the two groups of detection sleeves 23 to move towards each other, so that the detection sleeves 23 approach each other to adapt to pole columns with different spacings, realizing convenient adjustment of the spacing of the detection sleeves, facilitating adaptation to lithium battery pole columns with different spacings, and improving the flexibility of detection.

[0031] Working principle: When it is necessary to perform charge and discharge detection on the lithium battery of the power tool, first stack multiple groups of lithium batteries of the power tool in the placement box 1 in sequence. Drive the whole device to move outside the placement box 1 through the handle 4, connect the device to the external circuit, drive the clamping push arm 9 to move by the clamping electric push rod 7, drive the two connecting arms 11 to rotate by the clamping push arm 9 through the movable shaft 10, drive the slider 13 to slide on the surface of the slide rail 14 by the connecting arm 11 through the hinge shaft 12, drive the two clamping frames 2 to move towards each other by the two sliders 13, so that the clamping frame 2 contacts the placement box 1 and clamps and fixes the placement box 1. Drive the pressing push arm 17 to move downward by the pressing electric push rod 16, drive the detection frame 18 to move downward by the pressing push arm 17 through the connecting frame 19, drive the detection sleeve 23 and the detection contact 25 to move downward by the detection frame 18, so that the two detection contacts 25 respectively contact the battery anode 15 and the battery cathode 26. The spring 24 provides elastic support for the detection contact 25, so that the detection contact 25 always contacts the battery anode 15 and the battery cathode 26. Then, complete the charge and discharge detection of the lithium battery body 3 through the charge and discharge detector 8. Drive the bidirectional threaded rod 21 to rotate by the servo motor 20, drive the two bidirectional threaded sleeves 22 to move towards each other by the bidirectional threaded rod 21, drive the two detection sleeves 23 to move towards each other by the bidirectional threaded sleeves 22, so that the detection sleeves 23 approach each other to adapt to the pole columns with different spacings, and complete the use of the charge and discharge detection device for the production of lithium batteries of power tools.

[0032] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to form an equivalent embodiment with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A charge and discharge detection device for the production of lithium batteries for power tools, comprising a support frame (6) and a downward pressing electric push rod (16), characterized in that: Inside the support frame (6), multiple groups of downward pressing electric push rods (16) are installed. Output ends of the downward pressing electric push rods (16) are all installed with downward pressing push arms (17). Below the support frame (6), a connecting frame (19) is provided, and the connecting frame (19) is connected to the downward pressing push arms (17). At the bottom end of the connecting frame (19), multiple groups of detection frames (18) are installed at equal intervals. Inside the detection frames (18), servo motors (20) are symmetrically installed. Output ends of the servo motors (20) are all installed with bidirectional threaded rods (21). On the surfaces of the bidirectional threaded rods (21), two groups of bidirectional threaded sleeves (22) are sleeved. The bidirectional threaded sleeves (22) are in threaded connection with the bidirectional threaded rods (21), and the bidirectional threaded sleeves (22) are slidably connected to the detection frames (18). At the bottom ends of the bidirectional threaded sleeves (22), detection sleeves (23) are installed. Inside the detection sleeves (23), springs (24) are installed. At the bottom ends of the springs (24), detection contacts (25) are installed, and the detection contacts (25) are slidably connected to the detection sleeves (23). Outside the support frame (6), a placement box (1) is provided.

2. The charge and discharge detection device for the production of lithium batteries for power tools according to claim 1, characterized in that: Inside the placement box (1), multiple groups of lithium battery bodies (3) are installed at equal intervals. At the top ends of the lithium battery bodies (3), battery anodes (15) are all installed. At the top ends of the lithium battery bodies (3) on one side of the battery anodes (15), battery cathodes (26) are installed.

3. The charge and discharge detection device for the production of lithium batteries for power tools according to claim 1, characterized in that: At the top end of the support frame (6), a connecting plate (5) is installed. At the top end of the connecting plate (5), a handle (4) is installed.

4. An apparatus for detecting charge and discharge of a lithium battery for an electric tool according to claim 3, characterized in that: On the top end of the connecting plate (5) on one side of the handle (4), a charge-discharge detector (8) is installed. On the top end of the connecting plate (5) on the other side of the handle (4), a clamping electric push rod (7) is movably installed.

5. An apparatus for charge and discharge detection in the production of lithium batteries for power tools according to claim 3, characterized in that: On the top ends of the support frame (6) on both sides of the connecting plate (5), slide rails (14) are installed. On the surfaces of the slide rails (14), two groups of sliders (13) are slidably installed.

6. The charge and discharge detection device for the production of lithium batteries for power tools according to claim 1, wherein: On both sides of the placement box (1), clamping frames (2) are provided, and two ends of the clamping frames (2) are respectively connected to the sliders (13).

7. An apparatus for charging and discharging detection in the production of lithium batteries for power tools according to claim 4, characterized in that: The output end of the clamping electric push rod (7) is installed with a clamping push arm (9). At the end of the clamping push arm (9) away from the clamping electric push rod (7), a movable shaft (10) is installed. On the surface of the movable shaft (10), two groups of connecting arms (11) are sleeved. The connecting arms (11) are movably connected to the clamping push arm (9) through the movable shaft (10).

8. An apparatus for charging and discharging detection in the production of lithium batteries for power tools according to claim 7, characterized in that: At the ends of the connecting arms (11) close to the sliders (13), hinge shafts (12) are installed. The connecting arms (11) are movably connected to the sliders (13) through the hinge shafts (12).

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