Liquid injection device for battery production

Abstract

The utility model discloses a liquid injection device for battery production. The liquid injection device comprises a box body, the air cylinder is fixedly arranged on the outer wall of the upper side of the box body, and an output shaft of the air cylinder extends into the box body and is fixedly connected with a lifting plate; the liquid injection pipe is fixedly arranged on the lower side wall of the lifting plate; and the placing seat is fixedly arranged on the inner wall of the lower side of the box body. Compared with the prior art, by means of the arranged liquid supply mechanism, flushing work and liquid injection work can be flexibly switched, the liquid injection pipe and the interior of the pump machine can be automatically and efficiently cleaned in cooperation with the flushing mechanism in the flushing work state, the conditions of crystallization and corrosion caused by electrolyte residues are avoided, compared with manual cleaning, manpower is greatly saved, and the cleaning efficiency is improved. And the cleaning effect is good.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, and in particular to a liquid injection device for battery production. Background Technology

[0002] Battery electrolyte filling refers to the process of injecting electrolyte into the battery through pre-drilled filling holes. Electrolyte is a crucial component of lithium-ion batteries; it permeates the space between the positive and negative electrode materials, allowing ions to flow freely between them, thus enabling the battery's charging and discharging functions.

[0003] Chinese patent CN220209242U discloses a battery production electrolyte injection device, including a processing box. Support blocks are evenly and horizontally aligned with the bottom surface of the processing box. A side channel is horizontally formed on one side of the processing box, and through channels are symmetrically formed on both sides of the processing box. A sealing plate is fixedly fastened to the inner side of each through channel. A rotating disk is horizontally fastened to the inner side of each side channel. A storage groove is evenly formed on the top surface of the rotating disk. A feed pipe is horizontally fixedly inserted into the outer side of the processing box. A bolt is bolted to the top surface of the processing box. The processing box is equipped with a top cylinder. A storage box is horizontally bolted to the top inner side of the processing box. A pump is bolted to the bottom inner side of the storage box. A bottom fixing plate is horizontally installed on the bottom surface of the storage box. A control valve is fixedly embedded on the inner side of the bottom fixing plate. A filling pipe is inserted into the bottom surface of the control valve. An extension pipe is inserted into the top surface of the control valve. A through hole is horizontally opened on one side of the processing box. A rotating motor is fixedly embedded on the bottom inner side of the processing box. Bottom screw holes are evenly opened on the bottom surface of the processing box. A connecting screw is fixedly inserted into the top surface of the support block.

[0004] As described above, in existing battery production processes, after the electrolyte is filled, the injection pipes and pumps typically need to be manually disassembled for cleaning. This step aims to prevent electrolyte crystallization within the pipes and to prevent corrosion of the injection pipes and pumps. However, this manual cleaning method has significant drawbacks: firstly, it is inefficient and time-consuming, impacting the overall efficiency of battery production; secondly, manual operation carries a high risk of corrosion, potentially posing safety hazards to workers and damaging equipment. Utility Model Content

[0005] The main purpose of this invention is to provide a liquid injection device for battery production, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a liquid injection device for battery production, comprising:

[0007] Box;

[0008] A cylinder is fixedly mounted on the upper outer wall of the housing, and the output shaft of the cylinder extends into the housing and is fixedly connected to a lifting plate.

[0009] The injection tube is fixedly installed on the lower side wall of the lifting plate;

[0010] A placement seat is fixedly installed on the lower inner wall of the box body;

[0011] A flushing mechanism is provided at the lower end of the injection tube, and the flushing mechanism is used to flush the inner wall of the injection tube;

[0012] A liquid supply mechanism is installed on the tank and is used to supply electrolyte and cleaning solution.

[0013] As a further description of the above technical solution, the flushing mechanism includes a sliding sleeve that is slidably fitted onto the wall of the injection pipe. An annular fixing seat is fixedly fitted on the outer side of the sliding sleeve. A flushing ring is rotatably fitted inside the annular fixing seat. The flushing ring has a hollow structure. Multiple nozzles are arranged around the inner side of the flushing ring. A driven gear is fixedly fitted on the outer side of the flushing ring. A support plate is fixedly connected to the outer wall of the annular fixing seat. A motor is mounted on the support plate. The output shaft of the motor passes through the support plate and is fixedly connected to a driving gear that meshes with the driven gear.

[0014] As a further description of the above technical solution, the liquid supply mechanism includes an electrolyte tank and a cleaning liquid tank, which are respectively fixedly installed on both sides of the upper outer wall of the tank body. A first three-way switching valve is installed on the upper outer wall of the tank body. The electrolyte tank and the cleaning liquid tank are respectively connected to the first three-way switching valve through pipes. A pump is installed on the upper side wall of the lifting plate. The input end of the pump is connected to the first three-way switching valve through a metal bellows. A second three-way switching valve is also installed on the upper side wall of the lifting plate. The output end of the pump is connected to the second three-way switching valve through a pipe. The liquid injection pipe is connected to the second three-way switching valve through a pipe. One end of the second three-way switching valve is connected to the flushing ring through a cleaning liquid pipe.

[0015] As a further description of the above technical solution, a liquid collection box is detachably connected to the upper side wall of the placement seat, and two symmetrically distributed slide rails are fixedly connected to the bottom wall of the liquid collection box. Two slide grooves that are adapted to the slide rails are opened on the upper side wall of the placement seat.

[0016] As a further description of the above technical solution, the nozzle is inclined.

[0017] As a further description of the above technical solution, guide grooves are provided on both inner walls of the box, and guide rods are slidably arranged in the guide grooves. The other end of the guide rods is fixedly connected to the lifting plate.

[0018] As a further description of the above technical solution, a fixing ring is fixedly sleeved on the outer side of the injection tube, and magnetic rings that attract each other are embedded on the upper side wall of the sliding sleeve and the lower side wall of the fixing ring.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. With the set liquid supply mechanism, the flushing and liquid injection operations can be flexibly switched. In the flushing operation mode, in conjunction with the flushing mechanism, the liquid injection pipe and pump interior can be automatically and efficiently cleaned to avoid the crystallization and corrosion of electrolyte residue. Compared with manual cleaning, it greatly saves manpower and has a better cleaning effect. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a liquid injection device for battery production according to the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the box of a battery production liquid injection device according to the present invention;

[0023] Figure 3 This is a cross-sectional view of the injection tube of an injection device for battery production according to this utility model;

[0024] Figure 4 This is a schematic diagram of the annular fixing base structure of a battery production liquid injection device according to the present invention;

[0025] Figure 5 This is a schematic diagram of the liquid collection box structure of a liquid injection device for battery production according to this utility model;

[0026] In the diagram: 1. Housing; 2. Cylinder; 21. Lifting plate; 3. Injection pipe; 4. Placement seat; 5. Flushing mechanism; 6. Liquid supply mechanism; 51. Sliding sleeve; 52. Annular fixed seat; 53. Flushing ring; 54. Nozzle; 55. Driven gear; 56. Support plate; 57. Motor; 58. Drive gear; 61. Electrolyte tank; 62. Cleaning liquid tank; 63. First three-way switching valve; 64. Pump; 65. Second three-way switching valve; 66. Cleaning liquid pipe; 7. Collection box; 71. Slide rail; 41. Slide groove; 11. Guide groove; 12. Guide rod; 31. Fixed ring; 511. Magnetic ring. Detailed Implementation

[0027] To make the technical means, creative features, and objectives of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Please see Figure 1-5 This utility model provides a liquid injection device for battery production, comprising:

[0031] Box 1;

[0032] Cylinder 2 is fixedly mounted on the upper outer wall of housing 1. The output shaft of cylinder 2 extends into housing 1 and is fixedly connected to lifting plate 21.

[0033] Injection tube 3 is fixedly installed on the lower side wall of lifting plate 21;

[0034] Placement seat 4 is fixedly installed on the lower inner wall of the box body 1;

[0035] The flushing mechanism 5 is located at the lower end of the injection pipe 3 and is used to flush the inner wall of the injection pipe 3.

[0036] Liquid supply mechanism 6 is installed on the housing 1 and is used to supply electrolyte and cleaning fluid.

[0037] With the above structure, the flushing and injection operations can be flexibly switched. In the flushing process, in conjunction with the flushing mechanism 5, the injection pipe 3 and the inside of the pump 64 can be automatically and efficiently cleaned.

[0038] The flushing mechanism 5 includes a sliding sleeve 51, which is slidably sleeved on the wall of the injection pipe 3. An annular fixing seat 52 is fixedly sleeved on the outer side of the sliding sleeve 51. A flushing ring 53 is rotatably arranged inside the annular fixing seat 52. The flushing ring 53 has a hollow structure. Multiple nozzles 54 are arranged around the inner side of the flushing ring 53. A driven gear 55 is fixedly sleeved on the outer side of the flushing ring 53. A support plate 56 is fixedly connected to the outer wall of the annular fixing seat 52. A motor 57 is installed on the support plate 56. The output shaft of the motor 57 passes through the support plate 56 and is fixedly connected to a driving gear 58 that meshes with the driven gear 55.

[0039] The above structure enables efficient flushing of the inner wall of the injection tube 3, preventing electrolyte residue from crystallizing inside the injection tube 3, which could lead to poor injection flow and corrosion of the injection tube 3.

[0040] It should be noted that the flushing ring 53 and the annular fixed seat 52 are rotated seals.

[0041] The liquid supply mechanism 6 includes an electrolyte tank 61 and a cleaning liquid tank 62. The electrolyte tank 61 and the cleaning liquid tank 62 are respectively fixedly installed on both sides of the upper outer wall of the housing 1. A first three-way switching valve 63 is installed on the upper outer wall of the housing 1. The electrolyte tank 61 and the cleaning liquid tank 62 are respectively connected to the first three-way switching valve 63 through pipes. A pump 64 is installed on the upper side wall of the lifting plate 21. The input end of the pump 64 is connected to the first three-way switching valve 63 through a metal bellows. A second three-way switching valve 65 is also installed on the upper side wall of the lifting plate 21. The output end of the pump 64 is connected to the second three-way switching valve 65 through a pipe. The liquid injection pipe 3 is connected to the second three-way switching valve 65 through a pipe. One end of the second three-way switching valve 65 is connected to the flushing ring 53 through the cleaning liquid pipe 66.

[0042] With the above structure, the liquid delivered by the pump 64 can be flexibly switched. In the liquid injection working state, the pump 64 will deliver electrolyte, while in the flushing working state, the pump 64 will deliver cleaning fluid.

[0043] The upper side wall of the placement seat 4 is detachably connected to a liquid collection box 7, and two symmetrically distributed slide rails 71 are fixedly connected to the bottom wall of the liquid collection box 7. Two slide grooves 41 that are adapted to the slide rails 71 are opened on the upper side wall of the placement seat 4.

[0044] With the above structure, the waste liquid generated during the cleaning process is collected by the collection box 7, and the collection box 7 is easily connected to the placement seat 4 through the cooperation of the slide rail 71 and the slide groove 41.

[0045] The nozzle 54 is inclined, which prevents the cleaning fluid from converging at the axis of the injection pipe 3 when spraying the cleaning fluid, thus avoiding the formation of a dead zone.

[0046] The inner walls on both sides of the housing 1 are provided with guide grooves 11, and guide rods 12 are slidably installed in the guide grooves 11. The other end of the guide rods 12 is fixedly connected to the lifting plate 21. When the lifting plate 21 moves up and down, the guide rods 12 will slide along the guide grooves 11 to guide the lifting plate 21 and make its movement more stable.

[0047] Among them, a fixing ring 31 is fixedly sleeved on the outer side of the injection tube 3, and magnetic rings 511 that attract each other are embedded on the upper side wall of the sliding sleeve 51 and the lower side wall of the fixing ring 31. The sliding sleeve 51 can be fixed on the fixing ring 31 by the two magnetic rings 511 that attract each other.

[0048] It should be noted that this utility model is a battery injection device. In use, the battery is placed on the placement seat 4. During the injection operation, the first three-way switching valve 63 connects the electrolyte tank 61 to the pump 64, and the second three-way switching valve 65 connects the pump 64 to the injection pipe 3. Pulling the sliding sleeve 51 upwards causes it to move the annular fixing seat 52 and the flushing ring 53 upwards. The two magnetic rings 511 attract each other, thus fixing the sliding sleeve 51 and preventing the flushing mechanism 5 from obstructing the injection. The output shaft of the cylinder 2 pushes the lifting plate 21 downwards, aligning the injection pipe 3 with the battery's injection hole. The pump 64 extracts the electrolyte from the electrolyte tank 61 and delivers it to the injection pipe 3 for injection. During the flushing operation, the first three-way switching valve 63 connects the input end of the pump 64 to the cleaning fluid tank. Connect 62. The second three-way switching valve 65 connects the output end of the pump 64 to the cleaning fluid pipe 66. Insert the slide rail 71 at the bottom of the collection box 7 into the slide groove 41 on the placement seat 4. Then pull down the sliding sleeve 51 to overcome the attraction of the magnetic ring 511 and reset the flushing mechanism 5. The pump 64 draws out the cleaning fluid from the cleaning fluid tank 62 and delivers it to the flushing ring 53 through the cleaning fluid pipe 66. Then the cleaning fluid is sprayed out through the nozzle 54 onto the inner wall of the injection pipe 3. The output shaft of the motor 57 can drive the drive gear 58 to rotate. The rotation of the drive gear 58 can drive the driven gear 55 to rotate the flushing ring 53, thereby rotating the nozzle 54. The nozzle 54 rotates and flushes the inner wall of the injection pipe 3, improving the flushing effect. After flushing, pull out the collection box 7 to treat the waste liquid.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A liquid injection device for battery production, characterized by comprising: include: Box (1); Cylinder (2), the cylinder (2) is fixedly installed on the upper outer wall of the box (1), and the output shaft of the cylinder (2) extends into the box (1) and is fixedly connected to the lifting plate (21). Injection tube (3), which is fixedly installed on the lower side wall of the lifting plate (21); Placement seat (4), the placement seat (4) is fixedly installed on the lower inner wall of the box body (1); A flushing mechanism (5) is provided at the lower end of the injection tube (3) and is used to flush the inner wall of the injection tube (3). Liquid supply mechanism (6) is installed on the housing (1) and is used to supply electrolyte and cleaning fluid.

2. The liquid injection device for battery production according to claim 1, characterized by: The flushing mechanism (5) includes a sliding sleeve (51), which is slidably sleeved on the wall of the injection pipe (3). An annular fixing seat (52) is fixedly sleeved on the outer side of the sliding sleeve (51). A flushing ring (53) is rotatably provided inside the annular fixing seat (52). The flushing ring (53) has a hollow structure. Multiple nozzles (54) are provided on the inner side of the flushing ring (53). A driven gear (55) is fixedly sleeved on the outer side of the flushing ring (53). A support plate (56) is fixedly connected to the outer wall of the annular fixing seat (52). A motor (57) is installed on the support plate (56). The output shaft of the motor (57) passes through the support plate (56) and is fixedly connected to a driving gear (58) that meshes with the driven gear (55).

3. The liquid injection device for battery production according to claim 2, characterized by: The liquid supply mechanism (6) includes an electrolyte tank (61) and a cleaning liquid tank (62). The electrolyte tank (61) and the cleaning liquid tank (62) are respectively fixedly installed on the upper outer wall of the box body (1). A first three-way switching valve (63) is installed on the upper outer wall of the box body (1). The electrolyte tank (61) and the cleaning liquid tank (62) are respectively connected to the first three-way switching valve (63) through pipes. A pump (64) is installed on the upper wall of the lifting plate (21). The input end of the pump (64) is connected to the first three-way switching valve (63) through a metal bellows. A second three-way switching valve (65) is also installed on the upper side wall of the lifting plate (21). The output end of the pump (64) is connected to the second three-way switching valve (65) through a pipe. The injection pipe (3) is connected to the second three-way switching valve (65) through a pipe. One end of the second three-way switching valve (65) is connected to the flushing ring (53) through the cleaning liquid pipe (66).

4. The liquid injection apparatus for battery production according to claim 3, characterized by: A liquid collection box (7) is detachably connected to the upper side wall of the placement seat (4). Two symmetrically distributed slide rails (71) are fixedly connected to the bottom wall of the liquid collection box (7). Two slide grooves (41) adapted to the slide rails (71) are opened on the upper side wall of the placement seat (4).

5. The liquid injection apparatus for battery production according to claim 2, wherein: The nozzle (54) is set at an angle.

6. The liquid injection device for battery production according to claim 1, characterized by: Guide grooves (11) are provided on both inner walls of the box (1), and guide rods (12) are slidably provided in the guide grooves (11). The other end of the guide rods (12) is fixedly connected to the lifting plate (21).

7. The liquid injection apparatus for battery production according to claim 2, wherein: The outer side of the liquid injection pipe (3) is provided with a fixing ring (31), and the upper side wall of the sliding sleeve (51) and the lower side wall of the fixing ring (31) are both embedded with magnetic rings (511) that are attracted to each other.

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