Sealing tool for liquid injection opening of lithium ion battery

Abstract

The utility model relates to the technical field of lithium ion battery manufacturing, in particular to a lithium ion battery liquid injection opening sealing tool which comprises a bottom plate and a bent plate, the upper surface of the bottom plate is fixedly connected with the lower end of the bent plate, a first vertical plate is fixedly connected to the right side of the upper surface of the bottom plate, and a flat plate is fixedly connected to the upper end of a first electric telescopic rod. A liquid injection opening sealing and cleaning structure is arranged on the inner wall of the bent plate, a lithium ion battery limiting structure is arranged on the surface of the first vertical plate, through cooperation of the liquid injection opening sealing and cleaning structure and a dust collector, a first motor is started to drive a disc to rotate, the disc rotates to drive a straight rod to move left and right, and through a protruding cylinder on the straight rod and a sliding groove machined in the vertical rod, the lithium ion battery is sealed. And the vertical rod slides left and right on the surface of the first round rod and a slide way machined on the first shell at the same time, the dust collector is driven to move left and right to conduct comprehensive dust collection and cleaning work on the lithium ion battery, and the sealing quality of the lithium ion battery is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium ion battery manufacturing, in particular to a lithium ion battery liquid filling port sealing tool. Background Art

[0002] There are currently two main ways to seal the filling port of lithium-ion batteries. One is to use a rubber plug and laser weld the aluminum sheet, and the other is to seal with a steel ball and apply resin glue. The second filling is the same as the first filling. Vacuum filling is generally used, and the injection amount is controlled by a high-precision injection pump. The battery will be weighed before filling, and weighed a second time after filling. The weight is compared with the first weighing to assess whether the injection amount is qualified, and the NG batteries will be picked out and filled again.

[0003] For example, a lithium-ion battery filling port sealing tool with authorization announcement number "CN220041961U" has several partitions vertically staggered and injected inside the tool box to separate the lithium-ion batteries and avoid the problem of adjacent lithium-ion batteries squeezing each other, causing liquid leakage and mutual corrosion. However, when the lithium-ion battery filling port sealing tool is sealing the filling port of the lithium-ion battery, it is necessary to fix the position of the lithium-ion battery first before performing subsequent sealing work. The lithium-ion battery of the device needs to use a spring for position limiting work. Due to the long-term use of the spring, the elastic coefficient of the spring will be damaged, affecting the subsequent position limiting work of the lithium-ion battery. At the same time, when the lithium-ion battery filling port sealing tool is sealing the filling port of the lithium-ion battery, the filling port of the lithium-ion battery needs to be kept clean before the sealing work can be performed. However, a small amount of dust will remain on the surface of the lithium-ion battery, and the device cannot be cleaned, which reduces the sealing quality of the lithium-ion battery. Utility Model Content

[0004] The purpose of the utility model is to solve the existing problems that the elastic coefficient of the spring will be damaged due to long-term use, affecting the subsequent limiting work of the lithium-ion battery, and a small amount of dust will remain on the surface of the lithium-ion battery, and the equipment cannot be cleaned, thereby reducing the sealing quality of the lithium-ion battery. A lithium-ion battery filling port sealing tool is proposed to solve the problem that the elastic coefficient of the spring will be damaged due to long-term use, affecting the subsequent limiting work of the lithium-ion battery, and a small amount of dust will remain on the surface of the lithium-ion battery, which cannot be cleaned by the equipment, thereby reducing the sealing quality of the lithium-ion battery.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A lithium-ion battery filling port sealing tool is designed, comprising a base plate and a bent plate, wherein the upper surface of the base plate is fixedly connected to the lower end of the bent plate, the right side of the upper surface of the base plate is fixedly connected to a first vertical plate, the left side of the upper surface of the base plate is fixedly connected to a second vertical plate, the upper surface of the base plate is fixedly connected to a first electric telescopic rod, the upper end of the first electric telescopic rod is fixedly connected to a flat plate, the inner wall of the bent plate is provided with a filling port sealing cleaning structure, and the surface of the first vertical plate is provided with a lithium-ion battery limiting structure.

[0007] Preferably, the liquid injection port sealing and cleaning structure includes a first shell, a first motor is fixedly connected to the surface of the first shell through a bracket, the output shaft of the first motor passes through the first shell and is fixedly connected to a disc through a reducer, the surface of the disc is movably connected to the straight rod through a pin, the protruding cylinder on the straight rod is slidably connected to a slide groove processed in the vertical rod, the upper end of the vertical rod is slidably connected to a slideway processed on the inner wall of the first shell, the inner wall of the vertical rod is slidably connected to the surface of the first round rod, and the vertical rod passes through the first shell and is slidably connected to the slideway processed on the first shell.

[0008] Preferably, two ends of the first round rod are fixedly connected to two sides of the inner wall of the first shell respectively, and the upper surface of the first shell is fixedly connected to the inner wall of the bent plate.

[0009] Preferably, a second electric telescopic rod is fixedly connected to the lower end of the vertical rod, and a vacuum cleaner is fixedly connected to the lower end of the second electric telescopic rod.

[0010] Preferably, the lithium-ion battery limiting structure includes a second shell, the surface of the second shell is fixedly connected to a second motor through a bracket, the output shaft of the second motor passes through the second shell and is fixedly connected to a thick rod through a reducer, the thick rod is movably connected to a thin rod through a pin, the thin rod is movably connected to a tailstock protruding on the block through a pin, the inner wall of the block is slidably connected to the surface of the second round rod, the two ends of the second round rod are respectively fixedly connected to the two sides of the inner wall of the second shell, the surface of the block is fixedly connected to a cross bar, and the cross bar passes through the second shell and is socketed with the second shell.

[0011] Preferably, the second shell surface is fixedly connected to the first vertical plate surface, and one end of the cross bar is fixedly connected to a clamping plate.

[0012] The utility model provides a lithium-ion battery filling port sealing tool, which has the beneficial effects that: through the cooperation of the lithium-ion battery limiting structure and the clamping plate, the second motor is started to drive the thick rod to swing to the left, and the thick rod swings to the left to drive the thin rod to move to the left, driving the block to slide to the left on the surface of the second round rod, and at the same time drives the cross bar to move to the left in the second shell, and drives the clamping plate to move to the left, and the lithium-ion battery is limited by the cooperation of the second vertical plate, avoiding the use of springs for limiting work, and will not affect the subsequent limiting work of the lithium-ion battery;

[0013] Through the cooperation of the liquid injection port sealing cleaning structure and the vacuum cleaner, the first motor is started to drive the disc to rotate, and the rotation of the disc drives the straight rod to move left and right. Through the protruding cylinder on the straight rod and the slide groove processed in the vertical rod, the cylinder is driven to slide in the slide groove, and the vertical rod is pushed to slide left and right on the slideway processed on the inner wall of the first shell. The vertical rod slides left and right on the surface of the first round rod and the slideway processed on the first shell at the same time, driving the vacuum cleaner to move left and right to perform comprehensive vacuum cleaning on the lithium-ion battery, thereby improving the sealing quality of the lithium-ion battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 A front cross-sectional view of

[0016] Figure 3 for Figure 1 A front cross-sectional view of the lithium-ion battery limiting structure;

[0017] Figure 4 for Figure 3 Right side sectional view;

[0018] Figure 5 for Figure 1 A right side cross-sectional view of the sealing and cleaning structure of the middle liquid injection port;

[0019] Figure 6 for Figure 5 Front cross-sectional view of .

[0020] In the figure: 1, bottom plate, 2, first vertical plate, 3, lithium-ion battery limiting structure, 301, second shell, 302, second round rod, 303, thin rod, 304, square, 305, cross rod, 306, thick rod, 307, second motor, 4, bent plate, 5, liquid injection port sealing and cleaning structure, 501, first shell, 502, vertical rod, 503, straight rod, 504, disc, 505, first round rod, 506, first motor, 6, second electric telescopic rod, 7, vacuum cleaner, 8, second vertical plate, 9, flat plate, 10, first electric telescopic rod, 11, splint. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings:

[0022] See attached Figure 1-6 :

[0023] In this embodiment, a lithium-ion battery filling port sealing tool comprises a bottom plate 1 and a bent plate 4, the upper surface of the bottom plate 1 is fixedly connected to the lower end of the bent plate 4, the right side of the upper surface of the bottom plate 1 is fixedly connected to a first vertical plate 2, the left side of the upper surface of the bottom plate 1 is fixedly connected to a second vertical plate 8, the upper surface of the bottom plate 1 is fixedly connected to a first electric telescopic rod 10, the first electric telescopic rod 10 can meet the work needs according to actual needs, the upper end of the first electric telescopic rod 10 is fixedly connected to a flat plate 9, and the first electric telescopic rod 10 can drive the flat plate 9 to move up and down when it is started;

[0024] A liquid injection port sealing and cleaning structure 5 is provided on the inner wall of the bent plate 4, a lithium-ion battery limiting structure 3 is provided on the surface of the first vertical plate 2, two ends of the first round rod 505 are respectively fixedly connected to the two sides of the inner wall of the first shell 501, the upper surface of the first shell 501 is fixedly connected to the inner wall of the bent plate 4, the lower end of the vertical rod 502 is fixedly connected to the second electric telescopic rod 6, the movement of the vertical rod 502 can drive the second electric telescopic rod 6 to move, the lower end of the second electric telescopic rod 6 is fixedly connected to a vacuum cleaner 7, the second electric telescopic rod 6 can meet the work needs according to actual needs, the vacuum cleaner 7 can meet the work needs according to actual needs, the surface of the second shell 301 is fixedly connected to the surface of the first vertical plate 2, one end of the cross bar 305 is fixedly connected to the splint 11, and the left and right movement of the cross bar 305 can drive the splint 11 to move left and right.

[0025] See attached Figure 1-2 and Figure 5-6 :

[0026] The liquid injection port sealing cleaning structure 5 includes a first shell 501, and a first motor 506 is fixedly connected to the surface of the first shell 501 through a bracket. The first motor 506 can meet the working needs according to actual needs. The output shaft of the first motor 506 passes through the first shell 501 and is fixedly connected to a disc 504 through a reducer. The first motor 506 can drive the disc 504 to rotate when it is started. The surface of the disc 504 is movably connected to the straight rod 503 through a pin shaft. The rotation of the disc 504 can drive the straight rod 503 to move left and right. The protruding cylinder on 503 is slidably connected to the slide groove processed in the vertical rod 502, the upper end of the vertical rod 502 is slidably connected to the slideway processed on the inner wall of the first shell 501, the left and right movement of the straight rod 503 can drive the vertical rod 502 to slide left and right on the slideway processed on the inner wall of the first shell 501, the inner wall of the vertical rod 502 is slidably connected to the surface of the first round rod 505, the vertical rod 502 can slide left and right on the surface of the first round rod 505, and the vertical rod 502 penetrates the first shell 501 and is slidably connected to the slideway processed on the first shell 501.

[0027] See attached Figure 1-4 :

[0028] The lithium-ion battery limiting structure 3 includes a second housing 301, and a second motor 307 is fixedly connected to the surface of the second housing 301 through a bracket. The second motor 307 can meet the working needs according to actual needs. The output shaft of the second motor 307 passes through the second housing 301 and is fixedly connected to a thick rod 306 through a reducer. When the second motor 307 is started, the thick rod 306 can be driven to swing left and right. The thick rod 306 is movably connected to the thin rod 303 through a pin shaft. The left and right movement of the thick rod 306 can drive the thin rod 303 to move left and right. The thin rod 303 is connected to the pin shaft. It is movably connected to the tailstock protruding on the block 304, and the inner wall of the block 304 is slidably connected to the surface of the second round rod 302. The left and right movement of the thin rod 303 can drive the block 304 to slide left and right on the surface of the second round rod 302. The two ends of the second round rod 302 are respectively fixedly connected to the two sides of the inner wall of the second shell 301. A cross bar 305 is fixedly connected to the surface of the block 304. The cross bar 305 penetrates the second shell 301 and is socketed with the second shell 301. The left and right movement of the block 304 can drive the cross bar 305 to move left and right in the second shell 301.

[0029] Working principle:

[0030] The lithium-ion battery whose filling port needs to be sealed is placed on the flat plate 9 to prepare for the subsequent sealing work.

[0031] Lithium-ion battery limit operation:

[0032] The external power supply of the second motor 307 is turned on, and the second motor 307 starts to drive the thick rod 306 to swing to the left. The swinging of the thick rod 306 to the left drives the thin rod 303 to move to the left, driving the block 304 to slide to the left on the surface of the second round rod 302, and at the same time drives the cross bar 305 to move to the left in the second shell 301, and drives the clamping plate 11 to move to the left. The lithium-ion battery is limited by the cooperation of the second vertical plate 8. After the personnel observe that the lithium-ion battery is limited and fixed, the power supply of the second motor 307 is turned off.

[0033] Cleaning of the filling port seal:

[0034] The external power supplies of the second electric telescopic rod 6 and the vacuum cleaner 7 are respectively connected, and the second electric telescopic rod 6 and the vacuum cleaner 7 are started to drive the vacuum cleaner 7 to move downward to vacuum the lithium-ion battery. At the same time, the external power supply of the first motor 506 is connected, and the first motor 506 is started to drive the disc 504 to rotate. The rotation of the disc 504 drives the straight rod 503 to move left and right. Through the protruding cylinder on the straight rod 503 and the slide groove processed in the vertical rod 502, the cylinder is driven to slide in the slide groove, and the vertical rod 502 is pushed to slide left and right on the slideway processed on the inner wall of the first shell 501. The vertical rod 502 slides left and right on the surface of the first round rod 505 and the slideway processed on the first shell 501 at the same time (such as Figure 5), driving the vacuum cleaner 7 to move left and right to perform comprehensive vacuum cleaning on the lithium-ion battery, and then performing subsequent sealing work on the liquid injection port. After the sealing work, the external power supply of the first electric telescopic rod 10 is turned on, and the first electric telescopic rod 10 starts to drive the flat plate 9 to move upward to lift the lithium-ion battery upward, and then personnel take it out for collection.

[0035] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A lithium-ion battery filling port sealing tool, comprising a bottom plate (1) and a bent plate (4), wherein the upper surface of the bottom plate (1) is fixedly connected to the lower end of the bent plate (4), characterized in that: The first vertical plate (2) is fixedly connected to the right side of the upper surface of the bottom plate (1), the second vertical plate (8) is fixedly connected to the left side of the upper surface of the bottom plate (1), the first electric telescopic rod (10) is fixedly connected to the upper surface of the bottom plate (1), the upper end of the first electric telescopic rod (10) is fixedly connected to a flat plate (9), the inner wall of the bent plate (4) is provided with a liquid injection port sealing and cleaning structure (5), and the surface of the first vertical plate (2) is provided with a lithium-ion battery limiting structure (3).

2. A lithium-ion battery filling port sealing tool according to claim 1, characterized in that: The liquid injection port sealing and cleaning structure (5) comprises a first shell (501), the surface of the first shell (501) is fixedly connected to a first motor (506) via a bracket, the output shaft of the first motor (506) passes through the first shell (501) and is fixedly connected to a disc (504) via a reducer, the surface of the disc (504) is movably connected to a straight rod (503) via a pin, a protruding cylinder on the straight rod (503) is slidably connected to a slide groove processed in a vertical rod (502), the upper end of the vertical rod (502) is slidably connected to a slideway processed on the inner wall of the first shell (501), the inner wall of the vertical rod (502) is slidably connected to the surface of the first round rod (505), and the vertical rod (502) passes through the first shell (501) and is slidably connected to the slideway processed on the first shell (501).

3. A lithium-ion battery filling port sealing tool according to claim 2, characterized in that: The two ends of the first round rod (505) are respectively fixedly connected to the two sides of the inner wall of the first shell (501), and the upper surface of the first shell (501) is fixedly connected to the inner wall of the bent plate (4).

4. A lithium-ion battery filling port sealing tool according to claim 2, characterized in that: The lower end of the vertical rod (502) is fixedly connected to a second electric telescopic rod (6), and the lower end of the second electric telescopic rod (6) is fixedly connected to a vacuum cleaner (7).

5. The lithium-ion battery filling port sealing tool according to claim 1, characterized in that: The lithium-ion battery limiting structure (3) comprises a second housing (301); a second motor (307) is fixedly connected to the surface of the second housing (301) via a bracket; an output shaft of the second motor (307) passes through the second housing (301) and is fixedly connected to a thick rod (306) via a reducer; the thick rod (306) is movably connected to a thin rod (303) via a pin; the thin rod (303) is movably connected to a tailstock protruding from a block (304) via a pin; an inner wall of the block (304) is slidably connected to the surface of a second round rod (302); two ends of the second round rod (302) are respectively fixedly connected to two sides of the inner wall of the second housing (301); a cross bar (305) is fixedly connected to the surface of the block (304); the cross bar (305) passes through the second housing (301) and is sleeved with the second housing (301).

6. A lithium-ion battery filling port sealing tool according to claim 5, characterized in that: The surface of the second shell (301) is fixedly connected to the surface of the first vertical plate (2), and one end of the cross bar (305) is fixedly connected to a clamping plate (11).

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