Battery liquid leakage detection equipment

Abstract

The utility model discloses battery liquid leakage detection equipment, which comprises a vacuum detection box and a lifting part, a sealing cover is rotatably arranged at the top of the vacuum detection box, the lifting part is arranged in the vacuum detection box, the lifting part is provided with a driving frame arranged on the bottom surface of the sealing cover, a placing frame is arranged in the vacuum detection box in a sliding manner, and the sealing cover is arranged on the sealing cover. The placing frame is in meshed connection with the driving frame; the sealing cover is rotationally opened to drive the driving frame to rotate so as to drive the placing frame to lift; and the detection battery is arranged in the placement frame. According to the utility model, through the arrangement of the lifting part, the placing frame can be driven to move up and down through the rotation of the driving frame in the rotary opening and closing process of the sealing cover, so that a detection battery in the placing frame can move up and down, and the detection battery can automatically enter deionized water in the detection process; the labor amount of operators is reduced, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery leakage detection, in particular to a battery leakage detection device. Background Technique

[0002] Lithium batteries have the advantages of high voltage, high specific energy, many cycle usage times, long storage time, etc. They are widely used not only in portable electronic devices but also in large and medium-sized electric devices such as electric vehicles. The battery sealability is an important indicator of the battery safety performance. Therefore, before the lithium battery is put on the market, it is necessary to detect and process the leakage of the lithium battery injection port, and a lithium battery leakage detection device is needed.

[0003] The existing detection method is to detect whether the battery leaks based on the principle that the battery liquid will change the conductivity of deionized water. If there is a leakage position in the battery to be detected, the sealed cavity containing the battery to be detected is evacuated to make the battery liquid seep out quickly, and then by checking the conductivity of the deionized water, it can be judged whether the current battery to be detected leaks. However, during the detection process, the operator needs to manually place the battery into the detection box and immerse it in deionized water. Since the lithium battery has a certain weight, the labor intensity for the operator is too large during large-scale detection, which affects the detection efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a battery leakage detection device to solve the problem that in the detection process, the operator needs to manually place the battery into the detection box and immerse it in deionized water. Since the lithium battery has a certain weight, the labor intensity for the operator is too large during large-scale detection, which affects the detection efficiency as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A battery leakage detection device, including a vacuum detection box, a lifting part, and a detection battery:

[0006] A sealing cover is rotatably arranged at the top of the vacuum detection box. The lifting part is arranged inside the vacuum detection box. The lifting part has a driving frame arranged on the bottom surface of the sealing cover. A placement frame is slidably arranged inside the vacuum detection box. The placement frame is meshed with the driving frame. When the sealing cover rotates and opens, it drives the driving frame to rotate to drive the placement frame to lift and lower. The detection battery is arranged inside the placement frame.

[0007] By adopting the above technical solution, during the process of the sealing cover rotating and opening and closing, through the rotation of the driving frame, the placement frame can be driven to move up and down, so that the detection battery located inside the placement frame can move up and down, enabling the detection battery to automatically enter the deionized water during the detection process, reducing the labor intensity of the operator, and improving the detection efficiency.

[0008] Preferably, the vacuum detection box further includes a hydraulic rod disposed on the side of the vacuum detection box. The hydraulic rod is in transmission connection with the sealing cover, and the telescopic movement of the hydraulic rod controls the opening and closing angle of the rotation of the sealing cover.

[0009] By adopting the above technical solution, the telescopic length of the hydraulic rod can drive the sealing cover to open, close and rotate at the top of the vacuum detection box.

[0010] Preferably, the vacuum detection box further includes an air extraction valve disposed on the top of the sealing cover, a liquid inlet pipe disposed on the side of the vacuum detection box, and a liquid discharge pipe disposed on the side of the vacuum detection box. The liquid inlet pipe is disposed directly above the liquid discharge pipe.

[0011] By adopting the above technical solution, the air inside the vacuum detection box can be extracted through the air extraction valve, and deionized water for detection can be added into the vacuum detection box through the liquid inlet pipe and the liquid discharge pipe, or the deionized water after the detection is completed can be discharged.

[0012] Preferably, the vacuum detection box further includes a buffer plate slidably disposed inside the vacuum detection box and a spring disposed at the bottom of the buffer plate. The spring is disposed between the buffer plate and the vacuum detection box.

[0013] By adopting the above technical solution, the elastic force provided by the spring to the buffer plate can drive the buffer plate to move up and down inside the vacuum detection box.

[0014] Preferably, the lifting part further has a sliding frame disposed on the side of the placement rack. Sliding grooves are formed on both sides inside the vacuum detection box, and the sliding frame is embedded in the sliding grooves and is slidably connected thereto.

[0015] By adopting the above technical solution, the placement rack can slide up and down inside the vacuum detection box.

[0016] Preferably, a plurality of through holes are formed inside the placement rack, and the bottom of the placement rack abuts against the bottom of the buffer plate.

[0017] By adopting the above technical solution, when the detection battery is being detected, the deionized water can pass through the through holes and fully contact the detection battery.

[0018] Preferably, the lifting part further has a tooth a disposed on the side of the driving rack and a tooth b disposed on the side of the sliding frame. The tooth a and the tooth b are in meshing connection.

[0019] By adopting the above technical solution, when the sealing cover rotates, the driving rack can be driven to rotate, thereby driving the placement rack to move up and down inside the vacuum detection box.

[0020] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing a lifting part, during the rotational opening and closing of the sealing cover, the rotation of the driving frame drives the placement rack to move up and down, enabling the detection battery located within the placement rack to move up and down. This allows the detection battery to automatically enter deionized water during the detection process, reducing the labor intensity of the operator and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the overall sealing cover opening structure of the present application;

[0022] Figure 2 Schematic diagram of the overall sealing cover closing structure of the present application;

[0023] Figure 3 Schematic diagram of the overall cross-sectional structure of the present application;

[0024] Figure 4 Schematic diagram of the overall cross-sectional structure of the present application;

[0025] Figure 5 Schematic diagram of the cross-sectional structure of the vacuum detection box of the present application;

[0026] Figure 6 Schematic diagram of the placement rack structure of the present application.

[0027] In the figure: 1, vacuum detection box; 101, sealing cover; 102, air extraction valve; 103, hydraulic rod; 104, liquid inlet pipe; 105, liquid discharge pipe; 106, sliding groove; 107, buffer plate; 108, spring; 2, lifting part; 201, driving frame; 202, tooth a; 203, placement rack; 204, sliding rack; 205, tooth b; 3, detection battery. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Embodiment 1

[0030] Please refer to Figure 1 , Figure 2 and Figure 3 , this embodiment provides a technical solution: A battery leakage detection device includes a vacuum detection box 1, a lifting part 2, and a detection battery 3:

[0031] A sealing cover 101 is rotatably provided at the top of the vacuum detection box 1. The lifting part 2 is arranged inside the vacuum detection box 1. Hydraulic rods 103 are arranged on both sides of the vacuum detection box 1. The hydraulic rods 103 are drivingly connected to the sealing cover 101. The hydraulic rods 103 expand and contract to control the opening and closing angle of the rotation of the sealing cover 101. The length of the telescopic movement of the hydraulic rods 103 can drive the sealing cover 101 to open and close and rotate on the top of the vacuum detection box 1. A driving frame 201 is arranged on the bottom surface of the sealing cover 101. A placement rack 203 is slidably arranged inside the vacuum detection box 1. The placement rack 203 is meshed with the driving frame 201. When the sealing cover 101 rotates and opens, it drives the driving frame 201 to rotate to drive the placement rack 203 to lift. The detection battery 3 is arranged inside the placement rack 203. During the process of the rotation and opening and closing of the sealing cover 101, the rotation of the driving frame 201 drives the placement rack 203 to move up and down, so that the detection battery 3 located inside the placement rack 203 can move up and down, enabling the detection battery 3 to automatically enter the deionized water during the detection process, reducing the labor intensity of the operator and improving the detection efficiency.

[0032] Embodiment 2

[0033] Please refer to Figure 4 、 Figure 5 and Figure 6 This embodiment provides a technical solution: A battery leakage detection device, including a vacuum detection box 1 and a sealing cover 101:

[0034] An air extraction valve 102 is arranged on the top of the sealing cover 101. A liquid inlet pipe 104 is arranged on the side of the vacuum detection box 1. A liquid discharge pipe 105 is arranged on the side of the vacuum detection box 1. The liquid inlet pipe 104 is directly above the liquid discharge pipe 105. The air inside the vacuum detection box 1 can be evacuated through the air extraction valve 102. Deionized water for detection can be added into the vacuum detection box 1 or the deionized water after the detection is completed can be discharged through the liquid inlet pipe 104 and the liquid discharge pipe 105. The vacuum detection box 1 is evacuated through the air extraction valve 102, so that the battery liquid will quickly seep out from the damaged part of the detection battery 3. Then, by checking the conductivity of the deionized water, it can be determined whether the detection battery 3 leaks.

[0035] Embodiment 3

[0036] Please refer to Figure 4 、 Figure 5 and Figure 6 This embodiment provides a technical solution: A battery leakage detection device, including a vacuum detection box 1, a lifting part 2 and a placement rack 203:

[0037] A buffer plate 107 is slidably arranged inside the vacuum detection box 1, and a spring 108 is arranged at the bottom of the buffer plate 107. The spring 108 is arranged between the buffer plate 107 and the vacuum detection box 1. The elastic force provided to the buffer plate 107 by the spring 108 can drive the buffer plate 107 to move up and down inside the vacuum detection box 1. A slide 204 is arranged on the side of the placement rack 203, and slide grooves 106 are opened on both sides of the interior of the vacuum detection box 1. The slide 204 is embedded in the slide groove 106 and slidably connected therewith, so that the placement rack 203 can be moved up and down inside the vacuum detection box 1. The rack 203 slides downward, and a plurality of through holes are provided inside the rack 203. The bottom of the rack 203 abuts against the bottom of the buffer plate 107, so that when the detection battery 3 is detected, the deionized water can pass through the through holes and fully contact the detection battery 3. A latch tooth a202 is provided on the side of the driving rack 201, and a latch tooth b205 is provided on the side of the slide 204. The latch tooth a202 is meshed with the latch tooth b205, and can drive the driving rack 201 to rotate when the sealing cover 101 rotates, thereby driving the rack 203 to move up and down inside the vacuum detection box 1.

[0038] Working principle: First, deionized water for testing can be added to the interior of the vacuum testing box 1 through the liquid inlet pipe 104 and the liquid discharge pipe 105. When the sealing cover 101 is opened, the testing battery 3 is placed in the placement rack 203. Then, the sealing cover 101 is closed by the extension and contraction of the hydraulic rod 103, and the lock provided on the side of the sealing cover 101 is fastened to ensure the airtightness of the vacuum testing box 1. Then, the air inside the vacuum testing box 1 is exhausted through the air extraction valve 102. If there is any damage to the testing battery 3, the battery liquid will quickly seep out from the damaged part of the testing battery 3, and the conductivity of the deionized water is tested. The conductivity test The determination method is an existing mature technology. If the conductivity of the deionized water increases, the detection battery 3 has leakage. During the process of the sealing cover 101 rotating and opening and closing, the placement rack 203 is driven to move up and down by the rotation of the driving rack 201, so that the detection battery 3 located in the placement rack 203 can move up and down, so that the detection battery 3 can automatically enter the deionized water during the detection process. After the detection is completed, when the sealing cover 101 is opened again, the detection battery 3 will also be driven up by the placement rack 203 to separate from the deionized water, thereby reducing the workload of the operator and improving the detection efficiency.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery leakage detection device, characterized in that: include: A vacuum detection box (1), wherein a sealing cover (101) is rotatably provided on the top of the vacuum detection box (1); A lifting part (2), the lifting part (2) being arranged inside the vacuum detection box (1), the lifting part (2) having a driving frame (201) arranged on the bottom surface of the sealing cover (101), a placing frame (203) being slidably arranged inside the vacuum detection box (1), the placing frame (203) being meshingly connected with the driving frame (201), and the sealing cover (101) being rotated to open and drive the driving frame (201) to rotate, thereby driving the placing frame (203) to rise and fall; A detection battery (3) is arranged inside the placement rack (203).

2. A battery leakage detection device according to claim 1, characterized in that: The vacuum detection box (1) further comprises a hydraulic rod (103) arranged on the side of the vacuum detection box (1), the hydraulic rod (103) being transmission-connected to the sealing cover (101), and the hydraulic rod (103) being telescopic to control the opening and closing angle of the sealing cover (101) during rotation.

3. A battery leakage detection device according to claim 1, characterized in that: The vacuum detection box (1) further comprises an air extraction valve (102) arranged on the top of the sealing cover (101), a liquid inlet pipe (104) arranged on the side of the vacuum detection box (1), and a liquid discharge pipe (105) arranged on the side of the vacuum detection box (1), wherein the liquid inlet pipe (104) is arranged directly above the liquid discharge pipe (105).

4. A battery leakage detection device according to claim 1, characterized in that: The vacuum detection box (1) further comprises a buffer plate (107) slidably arranged inside the vacuum detection box (1) and a spring (108) arranged at the bottom of the buffer plate (107); the spring (108) is arranged between the buffer plate (107) and the vacuum detection box (1).

5. A battery leakage detection device according to claim 1, characterized in that: The lifting part (2) also has a slide (204) arranged on the side of the placement frame (203), and slide grooves (106) are provided on both sides of the interior of the vacuum detection box (1), and the slide (204) is embedded in the slide groove (106) and slidably connected thereto.

6. A battery leakage detection device according to claim 5, characterized in that: The interior of the placement rack (203) is provided with a plurality of through holes, and the bottom of the placement rack (203) abuts against the bottom of the buffer plate (107).

7. A battery leakage detection device according to claim 5, characterized in that: The lifting part (2) also has a latching tooth a (202) arranged on the side of the driving frame (201) and a latching tooth b (205) arranged on the side of the sliding frame (204), and the latching tooth a (202) and the latching tooth b (205) are meshingly connected.

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