A device for testing the sealing performance of lithium batteries for tablet computers

Abstract

This utility model discloses a lithium battery sealing performance testing device for tablet computers, including a testing box. A support frame is fixed to the top surface of the testing box, a glass window is opened on the surface of the testing box, a controller is fixed to the side of the testing box, an installation plate is provided inside the testing box, a reciprocating motor is fixed to the side of the testing box, a reciprocating lead screw is fixed to the output end of the reciprocating motor, and the reciprocating lead screw is threadedly connected to the installation plate. An airtightness tester is fixed to the top surface of the testing box. It also includes a placement component and a voltage regulating component. The placement component has an axisymmetric structure about the installation plate, so that the device can prepare for the next test when performing a lithium battery sealing performance test. The lithium battery can move laterally in the placement component, so that the surface of the lithium battery can be fully in contact with the gas in the testing box, with no blind spots, making the lithium battery test more accurate. The voltage regulating component can quickly squeeze or pull the gas in the testing box, improving the testing efficiency of lithium battery sealing performance.

Description

Technical Field

[0001] This utility model relates to the technical field of sealing test devices, specifically a sealing test device for tablet lithium batteries. Background Technology

[0002] Lithium batteries are liquid lithium-ion batteries encased in a polymer shell, structurally packaged in an aluminum-plastic film. During the manufacturing process, the airtightness of lithium-ion batteries is one of the most critical indicators. Poor sealing can lead to leakage or poor contact during use, causing the battery to swell and severely impacting its charge / discharge performance and cycle life. This can even pose safety hazards. A tablet computer lithium battery sealing tester is a device used to test the sealing performance of lithium batteries. Its core purpose is to ensure that the battery is leak-free during production, thereby guaranteeing its safety and performance.

[0003] Conventional lithium battery sealing testing devices require tooling fixtures to clamp and limit the lithium battery when testing its sealing performance using an airtightness tester. However, the contact point between the lithium battery and the component cannot be effectively detected, resulting in inaccurate test results. Furthermore, the device takes a long time to pressurize through the air tube, affecting the testing efficiency. Therefore, there is an urgent need for a lithium battery sealing testing device for tablet computers to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a lithium battery sealing test device for tablet computers, which solves the problems mentioned in the background art, such as the need for tooling fixtures to clamp and limit the lithium battery, but the inability to effectively detect the contact position between the lithium battery and the component, resulting in inaccurate test results, and the long time required for the device to pressurize through the air tube, which affects the testing efficiency of the lithium battery.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lithium battery sealing test device for tablet computers, comprising a test chamber, a support frame fixed to the top surface of the test chamber, a glass window opened on the surface of the test chamber, a controller fixed to the side of the test chamber, an installation plate provided inside the test chamber and movably connected to the test chamber, a reciprocating motor fixed to the side of the test chamber, the output end of the reciprocating motor penetrating through the side of the test chamber, a reciprocating lead screw fixed to the output end of the reciprocating motor and threadedly connected to the installation plate, an airtightness tester fixed to the top surface of the test chamber, a guide rod fixed inside the test chamber and movably connected to the installation plate; further comprising a placement assembly, the placement assembly being disposed on both sides of the installation plate for adjusting the position of the lithium battery; and a pressure regulating assembly, the pressure regulating assembly being disposed within the support frame for quickly adjusting the air pressure inside the test chamber.

[0006] Furthermore, the placement assembly includes a support plate, one end of which is fixedly connected to the mounting plate, and the support plate extends through the side of the detection box. An installation groove is provided in the support plate, and a placement frame is provided in the installation groove, with the placement frame being movably connected to the installation groove.

[0007] Furthermore, the surface of the placement frame is arrayed with guide grooves that penetrate the placement frame, and the placement frame is arrayed with movable columns that are rotatably connected to the placement frame.

[0008] Furthermore, a movable motor is fixed in the placement frame, and the output end of the movable motor is fixedly connected to one end of the movable column. The movable column is made of rubber thermoplastic. A sealing plate is fixed to the side of the support plate, and a sealing gasket is nested on the surface of the support plate.

[0009] Furthermore, the pressure regulating assembly includes a pressure regulating seat, which penetrates the top surface of the detection box and is movably connected to the detection box. A lifting motor is fixed on the top surface of the support frame, and the output end of the lifting motor penetrates the support frame. A lifting screw is fixed on the output end of the lifting motor, and the lifting screw is threadedly connected to the pressure regulating seat.

[0010] Furthermore, the surface of the pressure regulating seat is provided with a telescopic shell, and the top end of the telescopic shell is fixedly connected to the surface of the pressure regulating seat, and the bottom end of the telescopic shell is fixedly connected to the top surface of the detection box.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model discloses a lithium battery sealing performance testing device for tablet computers. A placement assembly is provided inside the testing chamber, and a voltage regulating assembly is located on the top surface of the testing chamber. The placement assembly has an axisymmetric structure about the mounting plate, allowing the device to prepare for the next test while performing a lithium battery sealing performance test. The lithium battery can move laterally within the placement assembly, ensuring that the entire surface of the lithium battery comes into contact with the gas inside the testing chamber, providing comprehensive and accurate testing without any blind spots. The voltage regulating assembly can quickly compress or extract the gas inside the testing chamber, improving the efficiency of lithium battery sealing performance testing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a front sectional view of the entire utility model;

[0015] Figure 3 This is an exploded view of the overall structure of this utility model;

[0016] Figure 4 This is a side sectional view of the entire utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the placement component of this utility model;

[0018] Figure 6 This is a cross-sectional view of the component placement of this utility model;

[0019] Figure 7 This is an exploded view of the structure of the placement component of this utility model;

[0020] Figure 8 This is a schematic diagram of the voltage regulating component of this utility model;

[0021] Figure 9 This is an exploded view of the voltage regulating component of this utility model.

[0022] In the diagram: 1. Placement component; 101. Sealing plate; 102. Placement frame; 103. Support plate; 104. Sealing gasket; 105. Guide channel; 106. Moving motor; 107. Movable column; 108. Mounting slot; 2. Pressure regulating component; 201. Lifting motor; 202. Lifting screw; 203. Telescopic shell; 204. Pressure regulating seat; 3. Testing box; 4. Controller; 5. Reciprocating motor; 6. Glass window; 7. Support frame; 8. Air tightness tester; 9. Mounting plate; 10. Reciprocating screw; 11. Guide rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-9This utility model provides a lithium battery sealing test device for tablet computers, including a test box 3, a support frame 7 fixed on the top surface of the test box 3, a glass window 6 on the surface of the test box 3, a controller 4 fixed on the side of the test box 3, an installation plate 9 inside the test box 3 and movably connected to the test box 3, a reciprocating motor 5 fixed on the side of the test box 3 and the output end of the reciprocating motor 5 passing through the side of the test box 3, a reciprocating lead screw 10 fixed on the output end of the reciprocating motor 5 and threadedly connected to the installation plate 9, an airtightness tester 8 fixed on the top surface of the test box 3, a guide rod 11 fixed in the test box 3 and movably connected to the installation plate 9; it also includes a placement component 1, which is set on both sides of the installation plate 9 for adjusting the position of the lithium battery; and a pressure regulating component 2, which is set in the support frame 7 for quickly adjusting the air pressure inside the test box 3;

[0025] It should be noted here that the controller 4 is a conventional control component and is considered prior art in this application. Its working principle and operation method will not be described in detail here.

[0026] It should be noted that the airtightness tester 8 is a precision instrument used to test the sealing and waterproof performance of a product. In this application, it is considered prior art, and its working principle and operation method will not be described in detail here.

[0027] Specifically, the placement component 1 is axially symmetrical about the mounting plate 9, allowing the device to prepare for the next test when performing a lithium battery sealing test. The lithium battery can move laterally in the placement component 1, so that the surface of the lithium battery can fully contact the gas in the test chamber 3, ensuring all-round and no blind spots, making the lithium battery test more accurate. The voltage regulating component 2 can quickly squeeze or pull the gas in the test chamber 3, improving the testing efficiency of the lithium battery sealing. The guide rod 11 makes the mounting plate 9 more stable when moving.

[0028] The placement component 1 includes a support plate 103, one end of which is fixedly connected to the mounting plate 9, and the support plate 103 penetrates the side of the detection box 3. An installation groove 108 is provided in the support plate 103, and a placement frame 102 is provided in the installation groove 108. The placement frame 102 is movably connected to the installation groove 108.

[0029] Specifically, the support plate 103 is axially symmetrical about the mounting plate 9. When one of the placement components 1 is inside the test box 3, the other placement component 1 will be outside the test box 3, allowing the staff to prepare for the next test. Driven by the reciprocating motor 5, the reciprocating screw 10 can move the two placement components 1 back and forth.

[0030] The surface of the placement frame 102 is arrayed with guide grooves 105, and the guide grooves 105 penetrate the placement frame 102. The placement frame 102 is arrayed with movable columns 107, and the movable columns 107 are rotatably connected to the placement frame 102.

[0031] Specifically, the placement frame 102 can be removed from the mounting slot 108, making it easy for the device to replace different placement frames 102 according to the model of the lithium battery. When the lithium battery is placed on the movable column 107, part of the surface of the lithium battery will be exposed to the gas inside the detection box 3.

[0032] A movable motor 106 is fixed in the placement frame 102, and the output end of the movable motor 106 is fixedly connected to one end of the movable column 107. The movable column 107 is made of rubber thermoplastic. A sealing plate 101 is fixed on the side of the support plate 103, and a sealing gasket 104 is nested on the surface of the support plate 103.

[0033] Specifically, driven by the moving motor 106, the lithium battery can move on the surface of the moving column 107, and the part of the lithium battery in contact with the device will be exposed to the gas inside the detection box 3.

[0034] The pressure regulating assembly 2 includes a pressure regulating seat 204, which penetrates the top surface of the test box 3 and is movably connected to the test box 3. A lifting motor 201 is fixed on the top surface of the support frame 7, and the output end of the lifting motor 201 penetrates the support frame 7. A lifting screw 202 is fixed on the output end of the lifting motor 201, and the lifting screw 202 is threadedly connected to the pressure regulating seat 204.

[0035] Specifically, driven by the lifting motor 201, the lifting screw 202, along with the pressure regulating seat 204, can be raised or lowered on the top surface of the detection box 3 to increase or decrease the air pressure inside the detection box 3.

[0036] The surface of the pressure regulating seat 204 is provided with a telescopic shell 203, and the top end of the telescopic shell 203 is fixedly connected to the surface of the pressure regulating seat 204, and the bottom end of the telescopic shell 203 is fixedly connected to the top surface of the detection box 3.

[0037] Specifically, the telescopic shell 203 is used to prevent gas in the detection box 3 from leaking out from the gap between the pressure regulating seat 204 and the detection box 3;

[0038] Working principle: The support plate 103 is axially symmetrical about the mounting plate 9. When one of the placement components 1 is inside the detection box 3, the other placement component 1 will be outside the detection box 3, allowing the operator to prepare for the next test. Driven by the reciprocating motor 5, the reciprocating screw 10 can move the two placement components 1 back and forth. The placement frame 102 can be removed from the mounting slot 108, making it easy to replace different placement frames 102 according to the lithium battery model. When the lithium battery is placed on the movable column 107, part of the lithium battery surface will be exposed to the gas inside the detection box 3. Driven by the moving motor 106, the lithium battery can move on the surface of the movable column 107, and the part of the lithium battery in contact with the device will be exposed to the gas inside the detection box 3.

[0039] Driven by the lifting motor 201, the lifting screw 202, along with the pressure regulating seat 204, can be raised and lowered on the top surface of the test box 3 to increase or decrease the air pressure inside the test box 3; the telescopic shell 203 is used to prevent gas in the test box 3 from leaking out from the gap between the pressure regulating seat 204 and the test box 3.

[0040] The placement component 1 is axially symmetrical about the mounting plate 9, allowing the device to prepare for the next test while performing a lithium battery sealing test. The lithium battery can move laterally within the placement component 1, ensuring that the entire surface of the lithium battery comes into contact with the gas inside the test chamber 3, providing comprehensive and thorough testing without any blind spots. This makes the lithium battery testing more accurate. The voltage regulating component 2 can quickly compress or extract the gas inside the test chamber 3, improving the efficiency of lithium battery sealing testing.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lithium battery sealing performance testing device for tablet computers, comprising a testing chamber (3), characterized in that: The top surface of the test box (3) is fixed with a support frame (7), the surface of the test box (3) is provided with a glass window (6), the side of the test box (3) is fixed with a controller (4), the test box (3) is provided with an installation plate (9), and the installation plate (9) is movably connected to the test box (3), the side of the test box (3) is fixed with a reciprocating motor (5), and the output end of the reciprocating motor (5) passes through the side of the test box (3), the output end of the reciprocating motor (5) is fixed with a reciprocating screw (10), and the reciprocating screw (10) is threadedly connected to the installation plate (9), the top surface of the test box (3) is fixed with an airtightness tester (8), the test box (3) is fixed with a guide rod (11), and the installation plate (9) is movably connected to the guide rod (11); Its characteristic is that it further includes: Placement component (1), which is disposed on both sides of mounting plate (9) for adjusting the position of lithium battery placement; Pressure regulating component (2), which is set in the support frame (7) for quickly adjusting the air pressure in the detection box (3).

2. The tablet computer lithium battery sealing performance testing device according to claim 1, characterized in that: The placement component (1) includes a support plate (103), one end of which is fixedly connected to the mounting plate (9), and the support plate (103) penetrates the side of the detection box (3). The support plate (103) has an installation groove (108) inside, and the installation groove (108) has a placement frame (102) inside, and the placement frame (102) is movably connected to the installation groove (108).

3. The tablet computer lithium battery sealing performance testing device according to claim 2, characterized in that: The surface of the placement frame (102) is provided with a flow guide groove (105), and the flow guide groove (105) penetrates the placement frame (102). The placement frame (102) is provided with a movable column (107), and the movable column (107) is rotatably connected to the placement frame (102).

4. The tablet computer lithium battery sealing performance testing device according to claim 3, characterized in that: A movable motor (106) is fixed in the placement frame (102), and the output end of the movable motor (106) is fixedly connected to one end of the movable column (107). The movable column (107) is made of rubber thermoplastic. A sealing plate (101) is fixed on the side of the support plate (103), and a sealing gasket (104) is nested on the surface of the support plate (103).

5. The tablet computer lithium battery sealing test device according to claim 1, characterized in that: The pressure regulating assembly (2) includes a pressure regulating seat (204), which penetrates the top surface of the detection box (3) and is movably connected to the detection box (3). A lifting motor (201) is fixed on the top surface of the support frame (7), and the output end of the lifting motor (201) penetrates the support frame (7). A lifting screw (202) is fixed on the output end of the lifting motor (201), and the lifting screw (202) is threadedly connected to the pressure regulating seat (204).

6. The tablet computer lithium battery sealing test device according to claim 5, characterized in that: The surface of the pressure regulating seat (204) is provided with a telescopic shell (203), and the top end of the telescopic shell (203) is fixedly connected to the surface of the pressure regulating seat (204), and the bottom end of the telescopic shell (203) is fixedly connected to the top surface of the detection box (3).

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