Quantitative liquid adding machine for nickel-metal hydride battery production

By combining the cam and contact rod design of the quantitative liquid dispenser used in nickel-metal hydride battery production, residual liquid in the liquid outlet tube is automatically wiped away, solving the problem of electrolyte dripping and achieving efficient cleaning and safe production.

CN224138303UActive Publication Date: 2026-04-17DONGGUAN CHAO BA BATTERIES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN CHAO BA BATTERIES CO LTD
Filing Date
2025-03-26
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In current nickel-metal hydride battery production, residual electrolyte at the outlet of the electrolyte filling machine can easily drip, leading to electrolyte waste, equipment corrosion, and personnel hazards, thus affecting battery quality and production line safety.

Method used

Design a quantitative liquid dispensing machine for nickel-metal hydride battery production. The sliding frame, which combines a cam and a contact rod, drives a wiping wheel to automatically wipe away residual liquid in the liquid outlet pipe. The automatic rotation of the wiping wheel is achieved by the meshing of a rack and pinion, ensuring the cleaning effect.

Benefits of technology

It effectively prevents residual electrolyte from dripping, improves production efficiency, reduces costs, enhances working environment safety, and improves battery quality control.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of nickel-metal hydride battery production, in particular to a quantitative liquid adding machine for nickel-metal hydride battery production. Comprising a guide frame, sliding frames are arranged on rod bodies of the guide frame in a sliding mode, elastic pieces are arranged between the sliding frames and the guide frame on the same side, a wiping wheel used for wiping a liquid outlet pipe is further rotationally arranged between the lower ends of the two sliding frames, motors are further installed on the two sides of an installation frame respectively, and cams are connected to output shafts of the motors. The sliding frame is further provided with a contact rod in contact fit with the cam on the same side, so that the wiping wheel is pushed to make contact with the liquid outlet pipe to wipe residual liquid. By means of ingenious combination of the cam and the contact rod, automatic movement of the sliding frame is achieved, then the wiping wheel is driven to make contact with the liquid outlet pipe, the effect that wiping is arranged immediately after liquid adding is completed is achieved, residual liquid on the liquid outlet pipe is effectively removed, dripping of the residual liquid is prevented, work efficiency is improved, and labor intensity of workers is reduced. And the safety of the working environment is also enhanced.
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Description

Technical Field

[0001] This utility model relates to the field of nickel-metal hydride battery production technology, and more specifically, to a quantitative liquid dispensing machine for nickel-metal hydride battery production. Background Technology

[0002] In nickel-metal hydride (NiMH) battery production lines, electrolyte filling is a critical step that directly impacts battery performance and safety. Existing NiMH battery electrolyte filling machines typically include one or more filling heads that precisely inject a specific amount of electrolyte into the battery casing. However, in actual production, when the filling machine moves to the next row after filling one row of batteries, some electrolyte may remain at the outlet of the filling head. If this residual electrolyte is not effectively treated, it may drip onto surfaces outside the batteries, such as the production line workbench or other battery components.

[0003] This situation not only wastes electrolyte, but more importantly, the corrosive and conductive nature of the electrolyte can pose a potential hazard to other equipment or operators on the production line. Furthermore, electrolyte leakage can also affect battery quality control, as any external contaminants can lead to a decline in battery performance.

[0004] Therefore, in order to address the above problems, there is an urgent need to develop a quantitative electrolyte dispenser for nickel-metal hydride battery production that can prevent residual electrolyte from dripping, so as to improve production efficiency, reduce production costs, and ensure the safety and environmental protection of the production line. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a quantitative electrolyte dispenser for nickel-metal hydride battery production that can prevent residual electrolyte from falling, thereby improving production efficiency, reducing production costs, and ensuring the safety and environmental protection of the production line.

[0006] The technical implementation scheme of this utility model is as follows: a quantitative electrolyte dispensing machine for nickel-metal hydride battery production, comprising a support frame, a storage tank, a mounting frame, mounting blocks, an outlet pipe, a connecting pipe, a guide frame, a sliding frame, an elastic element, a motor, a cam, a contact rod, and a wiping wheel. Two supports are provided, and a storage tank for storing electrolyte is disposed between the top ends of the two supports. A mounting frame is also disposed between the front sides of the two supports. Multiple mounting blocks are slidably disposed on the mounting frame at intervals, and an outlet pipe is inserted through each mounting block. The top end of the outlet pipe is connected to the storage tank. The mounting brackets are connected by a connecting pipe, and guide frames are provided on the opposite side of the two mounting brackets. A sliding frame is slidably mounted on the rod of the guide frame. An elastic element is provided between the sliding frame and the guide frame on the same side. A wiping wheel for wiping the liquid outlet pipe is rotatably mounted between the lower ends of the two sliding frames. A motor is also mounted on each side of the mounting bracket. A cam is connected to the output shaft of the motor. A contact rod is provided on the sliding frame to engage with the cam on the same side, so that the wiping wheel can be pushed to contact the liquid outlet pipe and wipe away the residual liquid.

[0007] Optionally, it also includes a mounting plate, a rack and gears. A mounting plate is provided at the bottom of the guide frame, and a rack is provided at the bottom of the mounting plate. Gears that mesh with the racks on the same side are also provided at both ends of the wiping wheel, which is suitable for driving the wiping wheel to rotate automatically.

[0008] Optionally, it also includes an adjusting bolt, which passes through and is threaded onto the mounting block to fix the position of the mounting block.

[0009] Optionally, it also includes a buffer pad, with a buffer pad that fits against the guide frame on the rear side of the sliding frame.

[0010] Optionally, the cushioning pad is made of hard rubber.

[0011] Optionally, it also includes a storage frame, with a storage frame for storing the wiping wheels provided between the two supports.

[0012] The beneficial effects of this utility model are: 1. This utility model utilizes the ingenious combination of cam and contact rod to realize the automatic movement of the sliding frame, thereby driving the wiping wheel to contact the liquid outlet pipe, realizing the effect of wiping immediately after the liquid is added, thus effectively removing the residual liquid on the liquid outlet pipe and preventing the residual liquid from dripping. This not only improves work efficiency but also enhances the safety of the working environment.

[0013] 2. This utility model enables the wiping wheel to rotate automatically through the meshing mechanism of rack and pinion, which not only ensures that the contact surface can be continuously renewed during the descent of the wiping wheel, but also avoids the weakening effect caused by repeated use of the same area, further enhancing the efficiency of the device and thus ensuring the continuity and reliability of the operation process. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the bracket, liquid storage tank, and mounting bracket of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the guide frame, sliding frame, and elastic element of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the mounting plate, rack, and gear components of this utility model.

[0018] In the attached diagrams: 1. Bracket, 2. Liquid storage tank, 3. Mounting bracket, 4. Mounting block, 5. Liquid outlet pipe, 6. Connecting pipe, 7. Guide frame, 8. Sliding frame, 9. Elastic element, 10. Motor, 11. Cam, 12. Contact rod, 13. Wiping wheel, 14. Mounting plate, 15. Rack, 16. Gear, 17. Adjusting bolt, 18. Buffer pad, 19. Storage frame. Detailed Implementation

[0019] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0020] Example: A quantitative liquid dispensing machine for nickel-metal hydride battery production, such as... Figures 1-4As shown, the device includes a support 1, a liquid storage tank 2, a mounting frame 3, mounting blocks 4, an outlet pipe 5, a connecting pipe 6, a guide frame 7, a sliding frame 8, an elastic element 9, a motor 10, a cam 11, a contact rod 12, and a wiping wheel 13. Two supports 1 are provided, serving as the basic support components for the entire device. A liquid storage tank 2 for storing electrolyte is located between the tops of the two supports 1. A mounting frame 3 is also located between the front sides of the two supports 1. Seven mounting blocks 4 are slidably arranged on the mounting frame 3 at intervals. The mounting block 4 slides left and right. A liquid outlet pipe 5 is installed through the middle of the mounting block 4. A connecting pipe 6 connects the top of the liquid outlet pipe 5 to the liquid storage tank 2, forming a flow channel from the liquid storage tank 2 to the connecting pipe 6 and then to the liquid outlet pipe 5. During use, the pump body is installed to achieve automated electrolyte discharge. Furthermore, guide frames 7 are installed on the opposite side of each of the two mounting brackets 3, with sliding frames 8 slidably mounted on the rods of the guide frames 7. The sliding frames 8 slide back and forth. An elastic element 9 is provided between the guide frames 7. In this embodiment, the elastic element 9 is a spring, which provides elastic support for the movement of the sliding frame 8, thereby realizing the reciprocating movement of the sliding frame 8 to adapt to the row-by-row movement operation. A wiping wheel 13 for wiping the liquid outlet pipe 5 is also rotatably arranged between the lower ends of the two sliding frames 8. The wiping wheel 13 operates synchronously with the sliding frame 8 to wipe the residual liquid at the pipe opening of the liquid outlet pipe 5, thereby preventing excess electrolyte from dripping and ensuring the safety of the working environment and personnel. The battery production quality has also been improved. A motor 10 is fixedly installed on each of the left and right sides of the mounting frame 3. A cam 11 is connected to the output shaft of the motor 10. A contact rod 12 is also provided on the sliding frame 8 to contact and cooperate with the cam 11 on the same side, so that the wiping wheel 13 can be pushed to contact the liquid outlet pipe 5 to wipe the residual liquid. This makes the wiping wheel 13 perform intermittent wiping operation to match the liquid addition progress and perform synchronous operation, so that the residual liquid can be wiped immediately after each row of liquid is added, avoiding the accumulation of residual liquid.

[0021] like Figure 4 As shown, the device also includes a mounting plate 14, a rack 15, and a gear 16. Mounting plates 14 are installed at the bottom of each guide frame 7, and racks 15 are installed at the bottom of each mounting plate 14. Gears 16, meshing with the racks 15 on the left and right ends of the wiping wheel 13, are also provided. This design facilitates the automatic rotation of the wiping wheel 13. This not only improves cleaning efficiency but also refreshes the contact surface of the wiping wheel 13, preventing the effect from weakening due to repeated use in the same area, thus further enhancing the device's performance.

[0022] like Figure 2 As shown, it also includes an adjusting bolt 17, which is threaded through and threaded onto the mounting block 4 to fix the position of the mounting block 4.

[0023] like Figure 3 As shown, it also includes a buffer pad 18. The rear side of the sliding frame 8 is provided with a buffer pad 18 that fits against the guide frame 7. The buffer pad 18 is made of hard rubber material, which can reduce the direct collision between the sliding frame 8 and the guide frame 7 and extend its service life.

[0024] like Figure 3 As shown, it also includes a storage frame 19. A storage frame 19 for storing the wiping wheel 13 is also provided between the two brackets 1. When the wiping wheel 13 is not needed, it can be stored in the storage frame 19 to protect the wiping wheel 13 and make the conversion device more neat and orderly.

[0025] When this device is needed, the batteries are placed in the placement area, which can move back and forth to precisely position each row of batteries below the outlet pipe 5 for electrolyte addition. Subsequent preparations are then made, including checking the electrolyte level in the storage tank 2. Next, according to the battery arrangement, the spacing of each mounting block 4 on the mounting frame 3 is adjusted, and the corresponding adjusting bolts 17 are tightened to fix the position between the mounting block 4 and the mounting frame 3. Then, the drive mechanism at the battery placement area is activated, causing the batteries to move row by row below the outlet pipe 5. The electrolyte flows through the storage tank 2 into the connecting pipe 6, then into the outlet pipe 5 and is discharged onto the batteries, achieving the required quantitative electrolyte addition. Simultaneously, after the electrolyte is discharged, the motor 10 starts and drives the connected cam 11 to rotate. The cam 11 contacts the contact rod 12 on the same side, thereby pushing the corresponding sliding frame 8 forward on the guide frame 7. As the sliding frame 8 moves, the elastic element 9 deforms accordingly, and simultaneously, the wiping wheel 13 moves to the outlet pipe 5 to wipe its opening. Due to the movement of the wiping wheel 13, the gears 16 at both ends mesh with the rack 15 on the same side, causing the wiping wheel 13 to rotate. The contact surface of the wiping wheel 13 can be switched to the other side by rotation for subsequent cleaning operations. Thus, the residual liquid at the opening of the outlet pipe 5 is wiped away. When the sliding frame 8 moves to the front of the guide frame 7, the cam 11 will disengage from the contact rod 12, and the elastic element 9 will return to its original position, causing the sliding frame 8 to return to the rear of the guide frame 7. The buffer pad 18 contacts the guide frame 7 to buffer the impact of the sliding frame 8's movement. Thus, the residual liquid in the outlet pipe 5 is cleaned once, preventing the residual liquid from falling. Finally, by repeating the above operations, the effect of wiping immediately after drainage can be achieved to avoid the residual liquid from falling.

[0026] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art that various changes or modifications can be made to the present invention without departing from the principles and spirit of the present invention as defined by the claims. Therefore, the detailed description of the embodiments in this disclosure is for explanation only and not for limiting the present invention, but rather the scope of protection is defined by the content of the claims.

Claims

1. A quantitative electrolyte dispensing machine for nickel-metal hydride battery production, comprising a support (1), wherein two supports (1) are provided, a storage tank (2) for storing electrolyte is provided between the top ends of the two supports (1), and a mounting frame (3) is also provided between the front sides of the two supports (1), wherein a plurality of mounting blocks (4) are slidably arranged on the mounting frame (3) at intervals, and an outlet pipe (5) is provided through the mounting block (4), wherein a connecting pipe (6) is connected between the top end of the outlet pipe (5) and the storage tank (2); characterized in that: It also includes a guide frame (7), and a guide frame (7) is provided on the opposite side of both mounting frames (3) in the front and rear direction. A sliding frame (8) is slidably provided on the rod of the guide frame (7). An elastic element (9) is provided between the sliding frame (8) and the guide frame (7) on the same side. A wiping wheel (13) for wiping the liquid outlet pipe (5) is also rotatably provided between the lower ends of the two sliding frames (8). A motor (10) is also installed on each side of the mounting frame (3). A cam (11) is connected to the output shaft of the motor (10). A contact rod (12) is also provided on the sliding frame (8) to contact and cooperate with the cam (11) on the same side, so that the wiping wheel (13) can be pushed to contact the liquid outlet pipe (5) and wipe the residual liquid.

2. A quantitative liquid dispensing machine for nickel-metal hydride battery production according to claim 1, characterized in that: It also includes a mounting plate (14), a rack (15) and a gear (16). The bottom of the guide frame (7) is provided with a mounting plate (14) and the bottom of the mounting plate (14) is provided with a rack (15). The two ends of the wiping wheel (13) are also provided with gears (16) that mesh with the rack (15) on the same side, which are suitable for driving the wiping wheel (13) to rotate automatically.

3. The liquid-adding machine for producing a nickel-hydrogen battery according to claim 2, wherein the liquid-adding machine is characterized by: It also includes an adjusting bolt (17), which is threaded through the mounting block (4) to fix the position of the mounting block (4).

4. The liquid-adding machine for producing a nickel-hydrogen battery according to claim 3, wherein the liquid-adding machine is characterized by: It also includes a buffer pad (18), and the rear side of the sliding frame (8) is provided with a buffer pad (18) that fits against the guide frame (7).

5. The liquid-adding machine for producing a nickel-hydrogen battery according to claim 4, wherein the liquid-adding machine is characterized by: The cushioning pad (18) is made of hard rubber.

6. The liquid-adding machine for producing a nickel-hydrogen battery according to claim 5, wherein the liquid-adding machine is characterized by: It also includes a storage frame (19), and a storage frame (19) for storing the wiping wheel (13) is provided between the two brackets (1).