Soft package lithium battery air extractor

Abstract

The utility model relates to the technical field of soft package lithium battery air exhaust, in particular to a soft package lithium battery air exhaust device which comprises a machining table, a motor is installed on the bottom face of the machining table, a rotating disc is rotatably installed on the top face of the machining table, and an installation groove is formed in the top face of the rotating disc. A through hole is formed in the bottom surface of the inner side of the mounting groove; an air exhaust structure is installed on the top face of the machining table and comprises an electric telescopic rod, the electric telescopic rod is fixedly installed on the top face of the rear end of the machining table, a pressing disc is fixedly installed at the extending end of the electric telescopic rod, an insertion pipe is installed on the bottom face of the pressing disc, and a guide pipe is fixedly connected to the upper end of the insertion pipe. A fixing plate is fixedly mounted at the rear end of the machining table. Through the arrangement of the pressing plate, the battery can be pressed downwards, so that the aluminum plastic film is attached to the battery cell, gas between the aluminum plastic film and the battery cell can be squeezed to the position near the insertion pipe, the gas can be conveniently and rapidly extracted through the insertion pipe, and the gas extraction efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of air extraction for soft-pack lithium batteries, in particular to an air extraction device for soft-pack lithium batteries. Background Art

[0002] Soft-pack lithium batteries are liquid lithium-ion batteries covered with a polymer shell and structurally packaged with aluminum-plastic film. During the production process, the aluminum-plastic film wrapped around the outside of the battery cell needs to be heat-sealed. Before heat sealing, the air in the aluminum-plastic film needs to be extracted to ensure the heat sealing effect.

[0003] In this regard, China applied for patent number: CN202121986662.2, which discloses a soft-pack lithium battery exhaust device, which mainly relates to the field of soft-pack lithium battery production equipment. A soft-pack lithium battery exhaust device comprises a horizontal plate, a motor is installed on the bottom surface of the horizontal plate, the motor shaft passes through the horizontal plate, a turntable is installed on the top of the motor shaft, and several evenly distributed placement slots are provided on the top surface of the turntable. Vertical plates are installed on both sides of the top surface of the horizontal plate, and the top surfaces of the two vertical plates are connected by a connecting plate. A telescopic rod is installed on the top surface of the connecting plate, and an internal hollow connecting block is installed at the bottom end of the telescopic rod. A vertical tube is installed on the bottom surface of the connecting block, and the top of the vertical tube is connected to the inside of the connecting block. The beneficial effect of the utility model is that the utility model has a simple structure and is easy to use. It can perform exhaust work while puncturing the packaging bag, which saves exhaust time, improves exhaust efficiency, saves production costs, and reduces the physical labor of operators, bringing convenience to lithium battery production.

[0004] The exhaust device extracts the air by piercing the soft aluminum-plastic film through a vertical tube. However, during the exhaust process, since the aluminum-plastic film is wrapped around the outside of the battery cell, part of the gas is located on the lower side of the battery cell after placement. The gas is blocked by the battery cell and is difficult to be quickly extracted from the upper side, which affects the exhaust efficiency.

[0005] Therefore, in order to solve the above problems, a vacuum device for a soft-pack lithium battery is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a vacuum device for soft-pack lithium batteries to solve the problem that the vacuum device in the prior art mentioned in the above background technology extracts air by setting a vertical tube to pierce the soft aluminum-plastic film, but in the process of vacuuming, since the aluminum-plastic film is wrapped on the outside of the battery cell, after placement, part of the gas is located on the lower side of the battery cell, which is blocked by the battery cell and the gas is difficult to be quickly extracted from the upper side, thereby affecting the efficiency of vacuuming.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a soft-pack lithium battery exhaust device, comprising: a processing table, a motor is installed on the bottom surface of the processing table, a rotating disk is rotatably installed on the top surface of the processing table, and a mounting groove is opened on the top surface of the rotating disk;

[0008] A through hole is formed on the inner bottom surface of the mounting groove;

[0009] An exhaust structure is installed on the top surface of the processing table, and the exhaust structure includes an electric telescopic rod, which is fixedly installed on the rear end top surface of the processing table, and a pressure plate is fixedly installed on the protruding end of the electric telescopic rod, and a plug is installed on the bottom surface of the pressure plate, and a catheter is fixedly connected to the upper end of the plug, and a fixing plate is fixedly installed on the rear end of the processing table, a circular hole is opened at the front end of the fixing plate, and a guide rod is inserted into the fixing plate, a spring is fixedly connected to the outer side of the upper end of the guide rod, and the bottom end of the guide rod is fixedly connected to the pressure plate, and a circular groove is opened on the bottom surface of the pressure plate.

[0010] Preferably, an ejection structure is installed on the bottom surface of the processing table, and the ejection structure includes a cylinder. The cylinder is fixedly installed on the bottom surface of the processing table, and a push plate is fixedly connected to the protruding end of the cylinder.

[0011] Preferably, the output end of the motor is fixedly connected to the bottom surface of the rotating disk.

[0012] Preferably, the pressure plate, the circular hole and the circular groove are coaxial, and the diameter of the pressure plate is smaller than the inner diameter of the circular hole and larger than the inner diameter of the circular groove.

[0013] Preferably, one end of the spring is fixedly connected to the top surface of the fixing plate, and a protrusion is provided on the bottom surface of the pressing plate.

[0014] Preferably, the diameter of the push plate is smaller than the inner diameter of the through hole, and the push plate is aligned with the through hole in the vertical direction.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model can press down the battery by setting a pressure plate so that the aluminum-plastic film fits the battery cell, and can squeeze the gas between the aluminum-plastic film and the battery cell to the vicinity of the insertion tube, so as to facilitate the rapid extraction of the gas through the insertion tube to ensure the extraction efficiency.

[0016] 1. The utility model is provided with an air extraction structure, and the electric telescopic rod is started to drive the pressure plate to descend. The pressure plate passes through the fixed plate through the circular hole and fits the top surface of the pressure plate. The pressure plate pushes the pressure plate to move downward, and the pressure plate drives the guide rod to move on the fixed plate and squeeze the spring. When the insertion tube pierces the aluminum-plastic film, the pressure plate will fit the top surface of the aluminum-plastic film and press the aluminum-plastic film downward, so that the gas between the aluminum-plastic film and the battery core can be squeezed to the vicinity of the insertion tube, so that the gas can be quickly extracted through the insertion tube to ensure the air extraction efficiency;

[0017] 2. The utility model is provided with an ejection structure, and the cylinder is started, and the cylinder drives the push plate to rise from the through hole, so that the soft-pack lithium battery placed in the installation groove can be pushed out from the rotating disk, which is convenient for removal, thereby improving the user experience of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic side view of the structure of the air extraction structure of the utility model;

[0020] Figure 3 It is a schematic side cross-sectional view of the structure of the rotating disk of the utility model;

[0021] Figure 4 It is a bottom view schematic diagram of the explosion structure of the air extraction structure of the utility model.

[0022] In the figure: 1. processing table; 11. motor; 12. rotating disk; 13. mounting groove; 14. through hole; 2. exhaust structure; 21. electric telescopic rod; 22. pressure plate; 23. insert tube; 24. catheter; 25. fixing plate; 26. round hole; 27. guide rod; 28. spring; 29. ​​pressure plate; 210. round groove; 3. ejection structure; 31. cylinder; 32. push plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 , an embodiment provided by the utility model:

[0025] The processing table 1, motor 11, electric telescopic rod 21 and cylinder 31 used in the present application are products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here.

[0026] A vacuum device for a soft-pack lithium battery comprises: a processing table 1, a motor 11 is installed on the bottom surface of the processing table 1, a rotating disk 12 is rotatably installed on the top surface of the processing table 1, and a mounting groove 13 is opened on the top surface of the rotating disk 12;

[0027] A through hole 14 is formed on the inner bottom surface of the mounting groove 13;

[0028] A vacuum structure 2 is installed on the top surface of the processing table 1, and the vacuum structure 2 includes an electric telescopic rod 21, which is fixedly installed on the rear end top surface of the processing table 1, and a pressure plate 22 is fixedly installed on the protruding end of the electric telescopic rod 21, and a plug 23 is installed on the bottom surface of the pressure plate 22. The upper end of the plug 23 is fixedly connected with a guide tube 24, and a fixing plate 25 is fixedly installed on the rear end of the processing table 1. A circular hole 26 is opened at the front end of the fixing plate 25, and a guide rod 27 is inserted on the fixing plate 25. A spring 28 is fixedly connected to the outer side of the upper end of the guide rod 27, and a pressing plate 29 is fixedly connected to the bottom end of the guide rod 27. A circular groove 210 is opened on the bottom surface of the pressing plate 29, and the pressing plate 29 can press down the battery so that the aluminum-plastic film fits the battery cell, and the gas between the aluminum-plastic film and the battery cell can be squeezed to the vicinity of the plug 23, so that the gas can be quickly extracted through the plug 23 to ensure the vacuum efficiency.

[0029] Furthermore, an ejection structure 3 is installed on the bottom surface of the processing table 1, and the ejection structure 3 includes a cylinder 31. The cylinder 31 is fixedly installed on the bottom surface of the processing table 1, and the protruding end of the cylinder 31 is fixedly connected to a push plate 32. When the cylinder 31 is started, the cylinder 31 drives the push plate 32 to rise from the through hole 14, and the soft-pack lithium battery placed in the installation groove 13 can be pushed out from the rotating disk 12, which is convenient for removal, so as to improve the user experience of the device.

[0030] Furthermore, the output end of the motor 11 is fixedly connected to the bottom surface of the rotating disk 12 , and the motor 11 provides power for the rotation of the rotating disk 12 .

[0031] Furthermore, the pressure plate 22, the circular hole 26 and the circular groove 210 are coaxial, the diameter of the pressure plate 22 is smaller than the inner diameter of the circular hole 26 and larger than the inner diameter of the circular groove 210, the pressure plate 22 can pass through the fixing plate 25 via the circular hole 26, and the pressure plate 22 can press down the pressure plate 29 so that the bottom end of the tube 23 can pass through the pressure plate 29 via the circular groove 210.

[0032] Furthermore, one end of the spring 28 is fixedly connected to the top surface of the fixing plate 25 , and a protrusion is provided on the bottom surface of the pressing plate 29 . The spring 28 provides power for resetting the pressing plate 29 , and the setting of the protrusion can ensure that the gas gathers near the cannula 23 .

[0033] Furthermore, the diameter of the push plate 32 is smaller than the inner diameter of the through hole 14 , and the push plate 32 is aligned with the through hole 14 in the vertical direction, so that the push plate 32 can rise to the inner side of the installation groove 13 through the through hole 14 .

[0034] Working principle: Before use, place the soft-pack lithium battery to be evacuated inside the mounting groove 13, and then start the motor 11 to drive the rotating disk 12 to rotate, so that the soft-pack lithium battery can be moved to the lower side of the pressing plate 29;

[0035] The electric telescopic rod 21 is started to drive the pressure plate 22 to descend. The pressure plate 22 passes through the fixed plate 25 through the circular hole 26 and fits the top surface of the pressure plate 29. The pressure plate 22 pushes the pressure plate 29 to move downward. The pressure plate 29 drives the guide rod 27 to move on the fixed plate 25 and squeezes the spring 28. When the insertion tube 23 pierces the aluminum-plastic film, the pressure plate 29 will fit the top surface of the aluminum-plastic film and press the aluminum-plastic film downward, so that the gas between the aluminum-plastic film and the battery core can be squeezed to the vicinity of the insertion tube 23, so that the gas can be quickly extracted through the insertion tube 23 to ensure the extraction efficiency;

[0036] After the vacuum is completed, as the rotating disk 12 rotates, the soft-pack lithium battery can be moved to the front side, and the cylinder 31 is started. The cylinder 31 drives the push plate 32 to rise from the through hole 14, and the soft-pack lithium battery placed in the installation groove 13 can be pushed out from the rotating disk 12 for easy removal, thereby improving the user experience of the device.

[0037] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A soft-pack lithium battery exhaust device, comprising: A processing table (1), wherein a motor (11) is mounted on the bottom surface of the processing table (1), a rotating disk (12) is rotatably mounted on the top surface of the processing table (1), and a mounting groove (13) is formed on the top surface of the rotating disk (12); Features: A through hole (14) is formed on the inner bottom surface of the mounting groove (13); The top surface of the processing table (1) is provided with an exhaust structure (2), the exhaust structure (2) comprising an electric telescopic rod (21), the electric telescopic rod (21) being fixedly mounted on the top surface of the rear end of the processing table (1), a pressure plate (22) being fixedly mounted on the extended end of the electric telescopic rod (21), a plug tube (23) being mounted on the bottom surface of the pressure plate (22), the upper end of the plug tube (23) being fixedly connected to a guide tube (24), a fixing plate (25) being fixedly mounted on the rear end of the processing table (1), a circular hole (26) being provided at the front end of the fixing plate (25), a guide rod (27) being inserted into the fixing plate (25), a spring (28) being fixedly connected to the outer side of the upper end of the guide rod (27), a pressure plate (29) being fixedly connected to the bottom end of the guide rod (27), and a circular groove (210) being provided on the bottom surface of the pressure plate (29).

2. A vacuum device for a soft-pack lithium battery according to claim 1, characterized in that: An ejection structure (3) is installed on the bottom surface of the processing table (1), and the ejection structure (3) comprises a cylinder (31). The cylinder (31) is fixedly installed on the bottom surface of the processing table (1), and the protruding end of the cylinder (31) is fixedly connected to a push plate (32).

3. A vacuum device for a soft-pack lithium battery according to claim 1, characterized in that: The output end of the motor (11) is fixedly connected to the bottom surface of the rotating disk (12).

4. A vacuum device for a soft-pack lithium battery according to claim 1, characterized in that: The pressure plate (22), the circular hole (26) and the circular groove (210) are coaxial, and the diameter of the pressure plate (22) is smaller than the inner diameter of the circular hole (26) and larger than the inner diameter of the circular groove (210).

5. The gas extraction device for a soft-pack lithium battery according to claim 1, characterized in that: One end of the spring (28) is fixedly connected to the top surface of the fixing plate (25), and a protrusion is provided on the bottom surface of the pressing plate (29).

6. A vacuum device for a soft-pack lithium battery according to claim 2, characterized in that: The diameter of the push plate (32) is smaller than the inner diameter of the through hole (14), and the push plate (32) is aligned with the through hole (14) in a vertical direction.

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