Lithium ion battery detection device

Abstract

The utility model relates to the technical field of observing bubbles in a liquid pool, and discloses a lithium ion battery detection device which comprises a detection pool, the front side of the detection pool is fixedly connected with a drainage pipeline, the drainage pipeline is communicated with the interior of the detection pool, the drainage pipeline is provided with a switch valve, the interior of the detection pool is connected with a lifting plate in a sliding mode, and the lifting plate is connected with the detection pool. The outer surface of the lifting plate can make contact with the inner wall of the detection pool, a water opening is formed in the upper side of the lifting plate, limiting sliding grooves are formed in the front wall and the rear wall of the detection pool correspondingly, limiting sliding blocks are fixedly connected to the front side and the rear side of the lifting plate correspondingly, and the two limiting sliding blocks are slidably connected into the two limiting sliding grooves correspondingly; the detection pool is provided with the lifting mechanism, and in this way, the lithium ion battery can be rapidly driven to ascend and descend in the detection pool, so that the situation that too much time is spent on putting in and taking out the battery during air tightness detection is avoided, and the air tightness detection efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of observing bubbles in a liquid pool, in particular to a lithium ion battery detection device. Background Art

[0002] Lithium-ion batteries are a type of secondary battery (rechargeable battery) that primarily relies on the movement of lithium ions between the positive and negative electrodes to operate. They have a wide range of applications, and are increasingly being used in our daily lives. Their safety and reliability are receiving increasing attention, so after production, lithium-ion batteries are subject to multiple quality tests. Air tightness testing is one of these quality tests, as the sealing of lithium-ion batteries is crucial to the safety of the cell. Failure of a cell can lead to significant losses, making the analysis of failed cells and subsequent preventive measures particularly important.

[0003] When testing the air tightness, the battery will be placed in the test pool and immersed in water. The air tightness of the battery will be tested by whether bubbles are generated. Currently, the battery is mostly placed on a lifting plate, which is then rotated by a threaded rod to drive the threaded lifting plate to rise and fall, so as to complete the placement and removal of the battery into and out of the test pool. However, this method of lifting the lifting plate by driving the threaded rod is relatively slow, which results in a long waiting time in this regard during the test, and the efficiency of the battery air tightness test will also decrease accordingly. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a lithium-ion battery testing device, which has the function of quickly driving the lithium-ion battery to rise and fall in the testing pool, so that the air-tightness test does not spend too much time on inserting and removing the battery, thereby improving the efficiency of the air-tightness test.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lithium-ion battery testing device, comprising a testing cell, a drainage pipe fixedly connected to the front side of the testing cell, the drainage pipe being connected to the interior of the testing cell, and a switch valve being provided on the drainage pipe;

[0008] The interior of the detection tank is slidably connected to a lifting plate, the outer surface of which can contact the inner wall of the detection tank, and a water outlet is opened on the upper side of the lifting plate;

[0009] Limiting slots are provided on the front and rear walls of the detection pool, and the front and rear sides of the lifting plate are fixedly connected to limiting sliders, which are slidably connected to the inside of the two limiting slots. A lifting mechanism is provided on the detection pool, and the lifting plate can be quickly raised and lowered by the lifting mechanism;

[0010] The lifting mechanism comprises a rotating rod, a lifting top block, a half gear ring, a protective shell, a connecting port and a hydraulic cylinder assembly.

[0011] Preferably, the rotating rod is arranged inside the detection pool, the rotating rod is arranged on the lower side of the lifting plate, and the right end of the rotating rod is rotatably connected to the right wall of the detection pool;

[0012] The left end of the rotating rod rotates and extends out of the left side of the detection pool, and a sealing structure is provided at the connection position between the rotating rod and the left wall of the detection pool;

[0013] The lifting top block is fixedly connected to the outer surface of the rotating rod.

[0014] Preferably, the lifting top block is provided on the rear side of the rotating rod, the rear side of the lifting top block is semi-cylindrical, and the half gear ring is fixedly sleeved on the outer surface of the rotating rod;

[0015] The half tooth ring is arranged on the left side of the detection pool. The size of the half tooth ring is one quarter of the entire tooth ring. The protective shell is fixedly connected to the left side of the detection pool.

[0016] Preferably, the rotating rod and the half gear ring are arranged inside the protective shell, and the connecting port is opened on the rear side of the protective shell;

[0017] The front wall of the connection port extends into the interior of the protective shell, and the hydraulic cylinder assembly is fixedly connected to the left side of the detection pool.

[0018] Preferably, the hydraulic cylinder assembly is arranged on the rear side of the protective housing, and the output end of the hydraulic cylinder assembly is fixedly connected to a hydraulic telescopic rod;

[0019] The front side of the hydraulic telescopic rod extends into the interior of the protective housing through the connection port, and the lower side of the hydraulic telescopic rod is a toothed surface;

[0020] The hydraulic telescopic rod is arranged on the upper side of the half gear ring, and the hydraulic telescopic rod is meshed and connected with the half gear ring.

[0021] Preferably, the length of the hydraulic telescopic rod is limited, and when the front end of the hydraulic telescopic rod moves to the front wall position of the protective shell, the half gear ring rotates close to but less than a quarter of a turn.

[0022] (3) Beneficial effects

[0023] Compared with the prior art, the present invention provides a lithium-ion battery detection device with the following beneficial effects:

[0024] (1) The lithium-ion battery detection device starts the hydraulic cylinder assembly, which starts to transmit power from the output end. After the transmission, the lifting plate starts to move upward. After it rises to the top, the staff puts the lithium-ion battery on the upper side of the lifting plate, and then contracts the hydraulic telescopic rod through the hydraulic cylinder assembly, and then the hydraulic telescopic rod starts to move backward. It can be seen from the above that the lifting plate will start to move downward, and then the lifting plate will drive the battery to be immersed in water, and then the battery can be tested for air tightness. In this way, the lithium-ion battery can be quickly driven to rise and fall in the detection pool, so that when performing air tightness testing, too much time will not be spent on putting in and taking out the battery, thereby improving the efficiency of air tightness testing.

[0025] (2) In the lithium-ion battery detection device, since the outer surface of the lifting plate contacts the inner wall of the detection pool, the detection pool will limit the lifting plate, thereby preventing the lifting plate from tilting during the ascending process and ensuring the stability of the battery during the ascending process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic structural diagram of a lithium-ion battery detection device of the present utility model;

[0027] Figure 2 This is a schematic diagram of the cross-sectional connection structure of the detection pool of the utility model;

[0028] Figure 3 This is a schematic diagram of the cross-sectional connection structure of the protective housing of the utility model;

[0029] Figure 4 This is a schematic diagram of the connection structure between the protective housing and the hydraulic telescopic rod of the utility model.

[0030] In the figure: 1. Detection tank; 2. Drainage pipe; 3. Lifting plate; 4. Water inlet; 5. Limiting slide; 6. Limiting slider; 7. Rotating rod; 8. Lifting top block; 9. Half-tooth ring; 10. Protective shell; 11. Connecting port; 12. Hydraulic cylinder assembly; 13. Hydraulic telescopic rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figures 1 to 4The utility model provides a new technical solution: a lithium ion battery detection device, including a detection pool 1, a drainage pipe 2 is fixedly connected to the front side of the detection pool 1, the drainage pipe 2 is connected to the interior of the detection pool 1, a switch valve is provided on the drainage pipe 2, the interior of the detection pool 1 is slidably connected with a lifting plate 3, the outer surface of the lifting plate 3 can contact the inner wall of the detection pool 1, a water outlet 4 is provided on the upper side of the lifting plate 3, and a limiting slide groove 5 is provided on the front wall and the rear wall of the detection pool 1. The front and rear sides of the lifting plate 3 are fixedly connected to the limiting slider 6, and the two limiting sliders 6 are respectively slidably connected to the inside of the two limiting slide grooves 5. A lifting mechanism is provided on the detection pool 1, and the lifting mechanism can make the lifting plate 3 rise and fall quickly. The lifting mechanism includes a rotating rod 7, a lifting top block 8, a half gear ring 9, a protective shell 10, a connecting port 11 and a hydraulic cylinder assembly 12.

[0033] Furthermore, the rotating rod 7 is arranged inside the detection pool 1, and the rotating rod 7 is arranged on the lower side of the lifting plate 3. The right end of the rotating rod 7 is rotatably connected to the right wall of the detection pool 1, and the left end of the rotating rod 7 is rotated to extend out of the left side of the detection pool 1. A sealing structure is provided at the connection position between the rotating rod 7 and the left wall of the detection pool 1. The sealing structure at the rotating rod 7 and the left wall of the detection pool 1 is an existing structure, so no further explanation is given. The lifting top block 8 is fixedly connected to the outer surface of the rotating rod 7, and the lifting top block 8 is arranged on the rear side of the rotating rod 7. The rear side of the lifting top block 8 is semi-cylindrical, and the semi-toothed ring 9 is fixedly sleeved on the outer surface of the rotating rod 7. The semi-toothed ring 9 is arranged on the left side of the detection pool 1. The size of the semi-toothed ring 9 is one-fourth of the overall toothed ring. The protective shell 10 is fixedly connected to the left side of the detection pool 1. The rotating rod 7 and the semi-toothed ring 9 are arranged Inside the protective shell 10, a connection port 11 is opened on the rear side of the protective shell 10, and the front wall of the connection port 11 extends into the interior of the protective shell 10. The hydraulic cylinder assembly 12 is fixedly connected to the left side of the detection pool 1, and the hydraulic cylinder assembly 12 is arranged on the rear side of the protective shell 10. The output end of the hydraulic cylinder assembly 12 is fixedly connected to a hydraulic telescopic rod 13, and the front side of the hydraulic telescopic rod 13 extends into the interior of the protective shell 10 through the connection port 11. The lower side of the hydraulic telescopic rod 13 is a tooth surface, and the hydraulic telescopic rod 13 is arranged on the upper side of the semi-toothed ring 9. The hydraulic telescopic rod 13 is meshed with the semi-toothed ring 9. The length of the hydraulic telescopic rod 13 will be limited. When the front end of the hydraulic telescopic rod 13 moves to the front wall position of the protective shell 10, the semi-toothed ring 9 will rotate close to but less than a quarter of a turn.

[0034] When in use, the staff starts the hydraulic cylinder assembly 12, and the hydraulic cylinder assembly 12 starts to transmit power from the output end, driving the hydraulic telescopic rod 13 to start moving forward, and then the hydraulic telescopic rod 13 drives the meshing connected half-tooth ring 9 to start rotating clockwise, and then the half-tooth ring 9 will drive the rotating rod 7 to start rotating clockwise synchronously, and then the rotating rod 7 will drive the lifting top block 8 to rotate synchronously. During the rotation of the lifting top block 8, it will contact the lower side of the lifting plate 3, and then push the lifting plate 3 to start moving upward. Because the outer surface of the lifting plate 3 is in contact with the inner wall of the detection tank 1, the detection tank 1 will limit the lifting plate 3, and at the same time the water inlet 4 facilitates the upper side of the lifting plate 3 The water flows into the interior of the detection pool 1, preventing the lifting plate 3 from tilting during the rising process. After rising to the top, the staff puts the lithium-ion battery on the upper side of the lifting plate 3, and then contracts the hydraulic telescopic rod 13 through the hydraulic cylinder assembly 12, and then the hydraulic telescopic rod 13 starts to move backward. It can be seen from the above that the lifting plate 3 will start to move downward, and then the lifting plate 3 will drive the battery to be immersed in water, and then the battery can be tested for air tightness. In this way, the lithium-ion battery can be quickly driven to rise and fall in the detection pool 1, so that the air tightness test will not take too much time on putting in and taking out the battery, thereby improving the efficiency of the air tightness test.

[0035] Working principle: When in use, the staff starts the hydraulic cylinder assembly 12, and the hydraulic cylinder assembly 12 starts to transmit power from the output end, driving the hydraulic telescopic rod 13 to move forward, and then the hydraulic telescopic rod 13 drives the meshing connected half-toothed ring 9 to start rotating clockwise, and then the half-toothed ring 9 will drive the rotating rod 7 to start rotating clockwise synchronously, and then the rotating rod 7 will drive the lifting top block 8 to rotate synchronously, and the lifting top block 8 will contact the lower side of the lifting plate 3 during the rotation process, and then push the lifting plate 3 to start moving upward, because the outer surface of the lifting plate 3 is in contact with the lower side of the lifting plate 3, and then push the lifting plate 3 to start moving upward, because the outer surface of the lifting plate 3 is in contact with the lower side of the lifting plate 3, and then push the lifting plate 3 to start moving upward. The inner walls of the detection pool 1 are in contact, so the detection pool 1 will limit the lifting plate 3. At the same time, the water inlet 4 facilitates the water on the upper side of the lifting plate 3 to flow into the interior of the detection pool 1, avoiding the lifting plate 3 from tilting during the rising process. After rising to the top, the staff will place the lithium-ion battery on the upper side of the lifting plate 3, and then retract the hydraulic telescopic rod 13 through the hydraulic cylinder assembly 12, and then the hydraulic telescopic rod 13 will start to move backward. It can be seen from the above that the lifting plate 3 will start to move downward, and then the lifting plate 3 will drive the battery to submerge in water, and then the battery can be tested for air tightness.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lithium-ion battery testing device, comprising a testing cell (1), wherein a drainage pipe (2) is fixedly connected to the front side of the testing cell (1), the drainage pipe (2) is connected to the interior of the testing cell (1), and an on-off valve is provided on the drainage pipe (2); A lifting plate (3) is slidably connected to the interior of the detection tank (1), the outer surface of the lifting plate (3) can contact the inner wall of the detection tank (1), and a water outlet (4) is provided on the upper side of the lifting plate (3); The front wall and the rear wall of the detection pool (1) are both provided with a limit slide groove (5), the front side and the rear side of the lifting plate (3) are both fixedly connected with a limit slider (6), and the two limit sliders (6) are respectively slidably connected to the inside of the two limit slide grooves (5), characterized in that: The detection pool (1) is provided with a lifting mechanism, through which the lifting plate (3) can be quickly raised and lowered; The lifting mechanism comprises a rotating rod (7), a lifting top block (8), a half gear ring (9), a protective shell (10), a connecting port (11) and a hydraulic cylinder assembly (12).

2. A lithium-ion battery detection device according to claim 1, characterized in that: The rotating rod (7) is arranged inside the detection pool (1), the rotating rod (7) is arranged on the lower side of the lifting plate (3), and the right end of the rotating rod (7) is rotatably connected to the right wall of the detection pool (1); The left end of the rotating rod (7) rotates and extends out of the left side of the detection pool (1), and a sealing structure is provided at the connection position between the rotating rod (7) and the left wall of the detection pool (1); The lifting top block (8) is fixedly connected to the outer surface of the rotating rod (7).

3. A lithium-ion battery detection device according to claim 1, characterized in that: The lifting top block (8) is arranged on the rear side of the rotating rod (7), the rear side of the lifting top block (8) is semi-cylindrical, and the semi-gear ring (9) is fixedly sleeved on the outer surface of the rotating rod (7); The half toothed ring (9) is arranged on the left side of the detection pool (1), and the size of the half toothed ring (9) is one quarter of the entire toothed ring. The protective shell (10) is fixedly connected to the left side of the detection pool (1).

4. A lithium-ion battery detection device according to claim 3, characterized in that: The rotating rod (7) and the half gear ring (9) are arranged inside the protective shell (10), and the connecting port (11) is opened on the rear side of the protective shell (10); The front wall of the connection port (11) extends into the interior of the protective housing (10), and the hydraulic cylinder assembly (12) is fixedly connected to the left side of the detection tank (1).

5. A lithium-ion battery detection device according to claim 4, characterized in that: The hydraulic cylinder assembly (12) is arranged on the rear side of the protective housing (10), and the output end of the hydraulic cylinder assembly (12) is fixedly connected to a hydraulic telescopic rod (13); The front side of the hydraulic telescopic rod (13) extends into the interior of the protective housing (10) through the connecting port (11), and the lower side of the hydraulic telescopic rod (13) is a toothed surface; The hydraulic telescopic rod (13) is arranged on the upper side of the half gear ring (9), and the hydraulic telescopic rod (13) is meshedly connected with the half gear ring (9).

6. A lithium-ion battery detection device according to claim 5, characterized in that: The length of the hydraulic telescopic rod (13) is limited, and when the front end of the hydraulic telescopic rod (13) moves to the front wall position of the protective shell (10), the half gear ring (9) rotates close to but less than a quarter of a turn.

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