Leakage detection device for lithium battery

Abstract

The utility model relates to the technical field of lithium battery production, and discloses a leak detection device for lithium batteries, which comprises a conveying table, a detection table and a rotary table, a first conveying channel is horizontally arranged on the front side of the upper surface of the conveying table, and a detection groove is arranged in the middle of the first conveying channel. The detection table and the rotary table are arranged on the two sides of the interior of the detection groove respectively. The weight of the lithium battery on the upper surface of the detection table can be detected through the pressure sensor, so that whether electrolyte exists in the lithium battery or not is detected, when the lithium battery is detected to be qualified, the lithium battery is conveyed to the next station through the third electric transmission roller, and when the lithium battery is detected to be unqualified, the servo motor is controlled to work; and the fourth electric transmission roller is parallel to the fifth electric transmission roller, and the lithium battery is conveyed to an unqualified station through the fifth electric transmission roller in the second conveying channel, so that the problems of low working efficiency and high labor intensity due to the fact that manual leakage detection and distinguishing of workers are needed in the existing leakage detection of the lithium battery are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a leakage detection device for lithium batteries. Background Art

[0002] "Lithium battery" is a type of battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution. Due to the very active chemical properties of lithium metal, the processing, storage and use of lithium metal have very high environmental requirements. With the development of science and technology, lithium batteries have now become mainstream.

[0003] After searching, the announcement number is CN206038230U, which discloses a leak detection device for lithium batteries, including a platform, a vacuum leak detection head, a detection table, and a sensor unit; the platform is provided with a lithium battery to be tested, a vacuum leak detection head is provided above the lithium battery to be tested, the vacuum leak detection head is arranged on the detection table, and the sensor unit is provided in the detection table.

[0004] In the process of realizing the utility model, the inventors found that there are at least the following problems in the prior art that have not been solved: by installing a vacuum leak detection head and a sensor unit and other structures on the detection table, the lithium battery can be leaked. However, during use, the staff needs to manually distinguish them, which is labor-intensive and has low work efficiency.

[0005] Therefore, we propose a leakage detection device for lithium batteries, which can automatically detect whether the electrolyte inside the lithium battery is leaking, and can automatically distinguish the lithium batteries after detection. Utility Model Content

[0006] The purpose of the utility model is to provide a leakage detection device for lithium batteries, which solves the problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a leakage detection device for lithium batteries, comprising a conveying platform, a first conveying channel is horizontally opened on the front side of the upper surface of the conveying platform, a detection groove is opened in the middle of the first conveying channel, and also comprises a detection platform and a turntable, the detection platform and the turntable are respectively placed on both sides of the inside of the detection groove, a limiting block is fixedly connected to the middle of the bottom side of the detection platform, a limiting groove is opened on one side of the inner wall of the bottom end of the detection groove, a pressure sensor is fixedly connected to the bottom inner wall of the limiting groove, a servo motor is fixedly connected to the other side of the inner wall of the bottom end of the detection groove, a fixing rod is fixedly connected to the shaft end of the servo motor, and the top of the fixing rod is fixedly connected to the middle of the bottom side of the turntable, a first electric drive roller and a third electric drive roller are respectively rotatably connected to the two sides of the inner wall of the bottom end of the first conveying channel, a second electric drive roller is rotatably connected to the upper surface of the detection platform, and a fourth electric drive roller is rotatably connected to the upper surface of the turntable, a second conveying channel is horizontally opened on the rear side of the upper surface of the conveying platform, and a fifth electric drive roller is rotatably connected to the bottom inner wall of the second conveying channel.

[0008] As an optional solution of the technical solution of the present application, the front end of the second conveying channel is connected to the detection groove, and the front end of the second conveying channel is aligned with the turntable.

[0009] As an optional solution of the technical solution of the present application, the bottom end of the limit block is clamped on the inner side of the limit groove, and the pressure sensor is pressed against the bottom side of the limit block.

[0010] As an optional solution of the technical solution of the present application, the sizes of the first electric drive roller, the second electric drive roller, the third electric drive roller, the fourth electric drive roller and the fifth electric drive roller are matched.

[0011] As an optional solution of the technical solution of the present application, a controller is fixedly connected to the front end of the upper surface of the conveying platform, the data output end of the pressure sensor is connected to the data input end of the controller, and the signal output end of the controller is connected to the signal input end of the servo motor, the second electric drive roller and the fourth electric drive roller.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: through the combination of the first conveying channel and the first electric drive roller, the lithium battery to be tested can be conveyed to the upper surface of the testing table; through the combination of the limit block, the limit groove and the pressure sensor, the weight of the lithium battery on the upper surface of the testing table can be detected, thereby detecting whether there is electrolyte inside the lithium battery; through the combination of the servo motor, the fixed rod, the turntable, the fourth electric drive roller, the third electric drive roller, the second conveying channel and the fifth electric drive roller, when the lithium battery is qualified, it is conveyed to the next workstation via the third electric drive roller; when the lithium battery is unqualified, the controller can automatically control the servo motor to drive the turntable to rotate, so that the fourth electric drive roller is parallel to the fifth electric drive roller, and is conveyed to the unqualified workstation via the fifth electric drive roller in the second conveying channel; the degree of automation is high, thereby solving the problems of the existing lithium battery leak detection, which requires staff to manually pick up leaks and distinguish, and has low work efficiency and high labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 This is a top view of a leakage detection device for lithium batteries of the utility model;

[0015] Figure 2 The utility model is a front view of a leakage detection device for lithium batteries.

[0016] In the figure: 1. conveying platform; 11. first conveying channel; 12. detection slot; 13. detection platform; 14. limit block; 15. limit slot; 16. pressure sensor; 17. first electric drive roller; 18. second electric drive roller; 19. third electric drive roller; 2. turntable; 21. servo motor; 22. fixing rod; 23. second conveying channel; 24. fourth electric drive roller; 25. fifth electric drive roller; 26. controller. DETAILED DESCRIPTION

[0017] See also Figure 1-Figure 2The utility model provides a technical solution: a leakage detection device for lithium batteries, comprising a conveying platform 1, a first conveying channel 11 is horizontally opened on the front side of the upper surface of the conveying platform 1, a detection slot 12 is opened in the middle of the first conveying channel 11, and also comprising a detection platform 13 and a turntable 2, the detection platform 13 and the turntable 2 are respectively placed on both sides of the inside of the detection slot 12, a limited block 14 is fixedly connected to the middle of the bottom side of the detection platform 13, a limited slot 15 is opened on one side of the inner wall of the bottom end of the detection slot 12, a pressure sensor 16 is fixedly connected to the inner wall of the bottom end of the limited slot 15, the bottom end of the limited block 14 is clamped on the inner side of the limited slot 15, and the pressure sensor 16 is pressed against the bottom side of the limited block 14, and the first electric drive roller 17 and the third electric drive roller 19 are rotatably connected to the two sides of the inner wall of the bottom end of the first conveying channel 11, the upper surface of the detection platform 13 is rotatably connected to the second electric drive roller 18, and the upper surface of the turntable 2 is rotatably connected to the fourth electric drive roller 24.

[0018] In this technical solution, the lithium battery conveying operation can be realized by the first electric drive roller 17 rotating inside the first conveying channel 11, and the lithium battery to be tested can be conveyed to the upper surface of the testing platform 13 through the second electric drive roller 18. The pressure of the limit block 14 can be detected by the pressure sensor 16, and then the pressure sensor 16 can transmit the data to the controller 26, and further detect the weight of the lithium battery on the upper surface of the testing platform 13, so as to detect whether the electrolyte is leaking inside the lithium battery.

[0019] In this embodiment, a servo motor 21 is fixedly connected to the other side of the inner wall at the bottom end of the detection groove 12, a fixed rod 22 is fixedly connected to the shaft end of the servo motor 21, the top end of the fixed rod 22 is fixedly connected to the middle part of the bottom side of the turntable 2, and a controller 26 is fixedly connected to the front end of the upper surface of the conveying table 1, the data output end of the pressure sensor 16 is connected to the data input end of the controller 26, and the signal output end of the controller 26 is connected to the signal input end of the servo motor 21, the second electric drive roller 18 and the fourth electric drive roller 24.

[0020] In this technical solution, when the lithium battery is tested to be qualified, the controller 26 can control the second electric drive roller 18 to work, and transport it to the next workstation via the fourth electric drive roller 24 and the third electric drive roller 19. When the lithium battery is tested to be unqualified, the controller 26 can automatically control the servo motor 21 to work, and can drive the turntable 2 to rotate, so that the fourth electric drive roller 24 is parallel to the fifth electric drive roller 25.

[0021] In this embodiment, a second conveying channel 23 is horizontally opened on the rear side of the upper surface of the conveying platform 1, and the inner wall of the bottom end of the second conveying channel 23 is rotatably connected to the fifth electric transmission roller 25. The front end of the second conveying channel 23 is connected to the detection groove 12, and the front end of the second conveying channel 23 is aligned with the turntable 2, and the sizes of the first electric transmission roller 17, the second electric transmission roller 18, the third electric transmission roller 19, the fourth electric transmission roller 24 and the fifth electric transmission roller 25 are matched.

[0022] In this technical solution, when the turntable 2 rotates so that the fourth electric drive roller 24 is parallel to the fifth electric drive roller 25, the controller 26 controls the fourth electric drive roller 24 to work, so that the unqualified lithium batteries on the upper surface of the turntable 2 can be conveyed to the second conveying channel 23, and then conveyed to the unqualified workstation via the fifth electric drive roller 25. The degree of automation is high, thereby solving the problem of existing lithium battery leak detection, which requires staff to manually pick up leaks and distinguish them, resulting in low work efficiency and high labor intensity.

[0023] When a leak detection device for lithium batteries is used, the first electric drive roller 17 rotating inside the first conveying channel 11 can realize the conveying operation of the lithium battery, and the lithium battery to be detected can be conveyed to the upper surface of the detection platform 13 through the second electric drive roller 18, and the pressure of the limit block 14 can be detected by the pressure sensor 16, and then the pressure sensor 16 can transmit the data to the controller 26, and further detect the weight of the lithium battery on the upper surface of the detection platform 13, so as to detect whether the electrolyte is leaked inside the lithium battery. When the lithium battery is qualified, the controller 26 can control the second electric drive roller 18 to work, and the fourth electric drive roller 18 can be used to transfer the lithium battery to the upper surface of the detection platform 13. The drive roller 24 and the third electric drive roller 19 are transported to the next workstation. When the lithium battery is detected to be unqualified, the controller 26 can automatically control the servo motor 21 to work, and can drive the turntable 2 to rotate, so that the fourth electric drive roller 24 is parallel to the fifth electric drive roller 25. At the same time, the controller 26 automatically controls the fourth electric drive roller 24 to work, and can transport the unqualified lithium batteries on the upper surface of the turntable 2 to the second conveying channel 23, and transport them to the unqualified workstation via the fifth electric drive roller 25. The degree of automation is high, thereby solving the problems of existing lithium battery leak detection, which requires staff to manually pick up leaks and distinguish, low work efficiency and high labor intensity.

Claims

1. A leak detection device for lithium batteries, comprising a conveying platform (1), a first conveying channel (11) being horizontally opened on the front side of the upper surface of the conveying platform (1), a detection slot (12) being opened in the middle of the first conveying channel (11), characterized in that: The invention also comprises a detection platform (13) and a turntable (2), wherein the detection platform (13) and the turntable (2) are respectively arranged on two sides of the inside of the detection slot (12), a limit block (14) is fixedly connected to the middle of the bottom side of the detection platform (13), a limit slot (15) is provided on one side of the inner wall at the bottom end of the detection slot (12), a pressure sensor (16) is fixedly connected to the inner wall at the bottom end of the limit slot (15), a servo motor (21) is fixedly connected to the other side of the inner wall at the bottom end of the detection slot (12), a fixed rod (22) is fixedly connected to the shaft end of the servo motor (21), and the fixed rod The top of the rotating platform (22) is fixedly connected to the middle of the bottom side of the turntable (2); the first conveying channel (11) is rotatably connected to the first electric drive roller (17) and the third electric drive roller (19) on both sides of the inner wall of the bottom end; the upper surface of the detection platform (13) is rotatably connected to the second electric drive roller (18); the upper surface of the turntable (2) is rotatably connected to the fourth electric drive roller (24); the rear side of the upper surface of the conveying platform (1) is horizontally provided with a second conveying channel (23); the inner wall of the bottom end of the second conveying channel (23) is rotatably connected to the fifth electric drive roller (25).

2. A leak detection device for lithium batteries according to claim 1, characterized in that: The front end of the second conveying channel (23) is communicated with the detection slot (12), and the front end of the second conveying channel (23) is aligned with the turntable (2).

3. A leak detection device for lithium batteries according to claim 1, characterized in that: The bottom end of the limit block (14) is clamped on the inner side of the limit groove (15), and the pressure sensor (16) is pressed against the bottom side of the limit block (14).

4. A leak detection device for lithium batteries according to claim 1, characterized in that: The sizes of the first electric drive roller (17), the second electric drive roller (18), the third electric drive roller (19), the fourth electric drive roller (24) and the fifth electric drive roller (25) are matched.

5. A leak detection device for lithium batteries according to claim 1, characterized in that: A controller (26) is fixedly connected to the front end of the upper surface of the conveying platform (1); a data output end of the pressure sensor (16) is connected to a data input end of the controller (26); and a signal output end of the controller (26) is connected to a signal input end of a servo motor (21), a second electric drive roller (18) and a fourth electric drive roller (24).

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