Device for cleaning graphite bipolar plate

Abstract

The utility model discloses a device for cleaning a graphite bipolar plate, which belongs to the technical field of graphite bipolar plate cleaning and comprises a base, two mounting frames are fixedly mounted on two sides of the base respectively, and two adjusting screw rods are rotatably connected between the inner walls of the two mounting frames respectively. And a limiting rod is fixedly mounted between the inner walls of the mounting frame and below the adjusting screw rod. According to the device for cleaning the graphite bipolar plate, by arranging an adjusting screw rod, a supporting bracket, a telescopic rod, a cleaning roller and a buffer spring, when the cleaning roller makes contact with the graphite bipolar plate, the cleaning roller is extruded to drive a lower buffer block to slide on the outer wall of an upper buffer block through a fixing frame; the buffer spring is squeezed to rebound and drives the cleaning roller to be attached to the graphite bipolar plate through the lower buffer block and the fixing frame to clean the graphite bipolar plate, the problem that cleaning is not uniform due to the fact that an operator cannot accurately control the force and the direction can be avoided, meanwhile, the cleaning range is widened, and impurity residues are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of graphite bipolar plate cleaning technology, specifically a device for cleaning graphite bipolar plates. Background Technology

[0002] In the field of fuel cells, graphite bipolar plates are one of the key components. With the widespread application of fuel cell technology, cleaning graphite bipolar plates has become an important aspect of ensuring their performance. Traditional cleaning methods are mostly manual, with operators using simple cleaning tools such as rags and brushes to clean the graphite bipolar plates. However, this manual cleaning method has many drawbacks. First, manual cleaning is difficult to ensure uniformity. Because it is difficult for operators to precisely control the force and direction of operation, some areas are easily over-cleaned while others are under-cleaned. This is especially true for components like graphite bipolar plates, which have relatively complex structures and may have tiny grooves or protrusions on their surfaces. When cleaning manually, the cleaning tools cannot fully adhere to the surface, which may result in some areas not being cleaned. This leaves impurities on the surface of the graphite bipolar plate, which in turn affects its performance in the fuel cell. For example, it may interfere with the normal electrochemical reaction and reduce the power generation efficiency of the fuel cell. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides a device for cleaning graphite bipolar plates, which solves the problem that in traditional manual cleaning methods, it is difficult to accurately control the force and direction of operation, resulting in uneven cleaning and the cleaning tool is difficult to fully adhere to the complex surface of the graphite bipolar plate, thus causing some areas to be missed and leaving impurities on the surface of the graphite bipolar plate that affect the performance of the fuel cell.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A device for cleaning graphite bipolar plates, comprising a base, two mounting brackets fixedly installed on both sides of the base, two adjusting screws rotatably connected between the inner walls of the two mounting brackets, a limiting rod fixedly installed between the inner walls of the mounting brackets below the adjusting screws, a support bracket provided above the base, the support bracket being U-shaped, the two adjusting screws and the two limiting rods respectively penetrating the bottom of both ends of the support bracket, two telescopic rods symmetrically installed on the inner side of the support bracket, connecting plates fixedly installed at the ends of the two telescopic rods, a fixed frame provided below the connecting plate, an output motor fixedly installed on one side of the fixed frame, a cleaning roller rotatably connected between the inner walls of the fixed frame, the output end of the output motor connected to one end of the cleaning roller, two lower buffer blocks symmetrically installed above the fixed frame, an upper buffer block slidably connected above the lower buffer blocks, the lower buffer blocks sleeved on the outer wall of the upper buffer blocks, a buffer spring provided between the inner walls of the lower and upper buffer blocks, and the top of the upper buffer block connected to the connecting plate.

[0005] As a further embodiment of this utility model: a collection chamber is fixedly installed on one side of the connecting plate, a suction pump is fixedly installed below the collection chamber, a connecting hose is fixedly connected to one end of the suction pump, a vacuum head is fixedly installed on one side of the fixing frame, and the other end of the connecting hose is connected to the vacuum head.

[0006] As a further embodiment of this utility model: two support frames are symmetrically installed on the upper part of the base near its side, and a column is fixedly installed on the inner wall of the top of the support frame, and the other end of the column is connected to the base.

[0007] As a further embodiment of this utility model: the number of the support pillars is two, and two compression springs are respectively sleeved on the outside of the two support pillars. A pressure plate is provided between the two support frames, and the two support pillars pass through both ends of the pressure plate. The pressure plate is located below the compression springs.

[0008] As a further embodiment of this utility model: one end of the adjusting screw is fixedly connected to a linkage wheel, and there are two linkage wheels, with a linkage belt attached to the two linkage wheels.

[0009] As a further embodiment of this utility model: a control motor is fixedly installed on one side of the base, and the output end of the control motor is connected to one of the linkage wheels.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This device for cleaning graphite bipolar plates comprises adjusting screws, a support bracket, a telescopic rod, a cleaning roller, and a buffer spring. During cleaning, the two adjusting screws rotate, causing the support bracket to move horizontally above the base. The telescopic rod extends along the inner wall of the support bracket, driving a fixed frame closer to the graphite bipolar plate via a connecting plate. The fixed frame then moves the cleaning roller closer to the graphite bipolar plate, and the rotating cleaning roller cleans the plate. When the cleaning roller contacts the graphite bipolar plate, the plate compresses it. This compression causes the lower buffer block to slide against the outer wall of the upper buffer block via the fixed frame. During this sliding motion, the lower buffer block compresses the buffer spring. The spring's rebound, combined with the lower buffer block and the fixed frame, causes the cleaning roller to adhere to the graphite bipolar plate for cleaning. This method avoids uneven cleaning caused by operators' difficulty in precisely controlling the force and direction, while also expanding the cleaning range to ensure effective cleaning of all areas of the graphite bipolar plate and reducing impurity residue.

[0012] 2. This device for cleaning graphite bipolar plates comprises a support frame, pillars, compression springs, and a pressure plate. During cleaning, the pressure plate is pulled by a handle above it, causing it to slide upwards between the two pillars. As it slides, the pressure plate compresses the compression springs at both ends, placing one end of the graphite bipolar plate under the pressure plate. Releasing the pressure plate allows it to return to its original position under the rebound of the compression springs, thus fixing one end of the graphite bipolar plate in place. This method prevents displacement of the graphite bipolar plate during cleaning, ensuring its stability and thus guaranteeing the cleaning effect. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 This is a schematic diagram of the structure connecting the support bracket and the cleaning roller of this utility model;

[0015] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A;

[0016] Figure 4 This utility model Figure 1 Enlarged structural diagram at point B;

[0017] Figure 5 This is a structural diagram showing the positional relationship between the base and the pressure plate of this utility model;

[0018] In the diagram: 1. Base; 2. Mounting bracket; 3. Adjusting screw; 4. Limiting rod; 5. Support bracket; 6. Telescopic rod; 7. Connecting plate; 8. Fixing frame; 9. Output motor; 10. Cleaning roller; 11. Lower buffer block; 12. Upper buffer block; 13. Buffer spring; 14. Collection chamber; 15. Suction pump; 16. Connecting hose; 17. Vacuum head; 18. Support frame; 19. Support column; 20. Compression spring; 21. Pressure plate; 22. Linkage wheel; 23. Linkage belt; 24. Control motor. Detailed Implementation

[0019] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0020] like Figure 1-5 As shown, this utility model provides a technical solution: a device for cleaning graphite bipolar plates, including a base 1, two mounting brackets 2 fixedly installed on both sides of the base 1, two adjusting screws 3 rotatably connected between the inner walls of the two mounting brackets 2, and a linkage wheel 22 fixedly connected to one end of each adjusting screw 3. There are two linkage wheels 22, and a linkage belt 23 is fitted over each linkage wheel 22. A control motor 24 is fixedly installed on one side of the base 1, and the output end of the control motor 24 is connected to one of the linkage wheels 22. Through the cooperation between the two linkage wheels 22, the synchronous rotation of the two linkage wheels 22 ensures that the two adjusting screws 3 rotate synchronously, thereby adjusting the position of the two ends of the cleaning roller 10. The adjustments are synchronized to further ensure uniform contact between the cleaning roller 10 and the graphite bipolar plate surface. A limit rod 4 is fixedly installed between the inner walls of the mounting frame 2 below the adjusting screw 3. A support bracket 5 is provided above the base 1. The support bracket 5 has a U-shaped design. Two adjusting screws 3 and two limit rods 4 pass through the bottom of both ends of the support bracket 5. Two telescopic rods 6 are symmetrically installed on the inner wall above the support bracket 5. A connecting plate 7 is fixedly installed at the end of the two telescopic rods 6. A fixing frame 8 is provided below the connecting plate 7. An output motor 9 is fixedly installed on one side of the fixing frame 8. The cleaning roller 10 is rotatably connected between the inner walls of the fixing frame 8. The output end of the output motor 9 is connected to one end of the cleaning roller 10.

[0021] Two lower buffer blocks 11 are symmetrically installed above the fixed frame 8. An upper buffer block 12 is slidably connected above the lower buffer block 11. The lower buffer block 11 is sleeved on the outer wall of the upper buffer block 12. A buffer spring 13 is provided between the inner walls of the lower buffer block 11 and the upper buffer block 12. The top of the upper buffer block 12 is connected to the connecting plate 7. Because of the buffer spring 13, when the cleaning roller 10 encounters a small protrusion on the surface of the graphite bipolar plate or is subjected to some unavoidable impact during the cleaning process, the buffer spring 13 can absorb these impacts, protect the cleaning roller 10, reduce the damage to the cleaning roller 10, and extend the service life of the device.

[0022] A collection chamber 14 is fixedly installed on one side of the connecting plate 7, and a suction pump 15 is fixedly installed below the collection chamber 14. One end of the suction pump 15 is fixedly connected to a connecting hose 16. A vacuum head 17 is fixedly installed on one side of the mounting bracket 8, and the other end of the connecting hose 16 is connected to the vacuum head 17. Under the action of the suction pump 15, the vacuum head 17 can promptly suck away the dust generated during the cleaning process. The cleaned dust can easily re-adhere to the graphite bipolar plate, ensuring the cleanliness of the graphite bipolar plate. Two support brackets 18 are symmetrically installed on the upper part of the base 1 near its side. A support column 19 is fixedly installed on the inner wall of the top of the support frame 18. The other end of the support column 19 is connected to the base 1. There are two support columns 19. Two compression springs 20 are respectively sleeved on the outside of the two support columns 19. A pressure plate 21 is provided between the two support frames 18. The two support columns 19 pass through both ends of the pressure plate 21. The pressure plate 21 is located below the compression springs 20. Because of the pressure plate 21, the pressure plate 21 can stabilize the graphite bipolar plate placed on the base 1. During the cleaning process, the graphite bipolar plate will not easily shift, ensuring that the cleaning roller 10 can accurately clean it.

[0023] The working principle of this utility model is as follows: When using this device, pull the pressure plate 21, and both ends of the pressure plate 21 slide on the outer wall of the two support columns 19, squeezing the compression spring 20. Place one end of the graphite bipolar plate under the pressure plate 21. Release the pressure plate 21, and under the action of the compression spring 20, the pressure plate 21 resets and squeezes the graphite bipolar plate to fix it. The telescopic rod 6 extends below the support bracket 5, driving the cleaning roller 10 to move through the connecting plate 7 and the fixing frame 8. When the cleaning roller 10 contacts the graphite bipolar plate, the cleaning roller 10 squeezes the lower buffer block 11 through the fixing frame 8. The lower buffer block 11 slides on the outer wall of the upper buffer block 12 and cooperates with the upper buffer block 12 to squeeze the buffer spring 13, thus relieving pressure. After being compressed and rebounded, the spring 13 drives the cleaning roller 10 to adhere to the surface of the graphite bipolar plate via the fixing frame 8. The output motor 9 drives the cleaning roller 10 to rotate and clean the graphite bipolar plate. The suction pump 15 absorbs the dirt generated during the cleaning process through the suction head 17 and transports it to the collection chamber 14 for collection through the connecting hose 16. The control motor 24 drives one of the linkage wheels 22 to rotate. The two linkage wheels 22 rotate synchronously under the action of the linkage belt 23, which in turn drives the two adjusting screws 3 to rotate. Under the action of the adjusting screws 3, the support bracket 5 moves horizontally above the base 1, causing the cleaning roller 10 to clean the surface of the graphite bipolar plate. This is how the device is used.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0025] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A device for cleaning graphite bipolar plates, comprising a base (1), characterised in that: Two mounting brackets (2) are fixedly installed on both sides of the base (1). Two adjusting screws (3) are rotatably connected between the inner walls of the two mounting brackets (2). A limiting rod (4) is fixedly installed between the inner walls of the mounting brackets (2) below the adjusting screws (3). A support bracket (5) is provided above the base (1). The support bracket (5) is U-shaped. The two adjusting screws (3) and the two limiting rods (4) pass through the bottom of both ends of the support bracket (5). Two telescopic rods (6) are symmetrically installed on the inner side of the support bracket (5). A connecting plate (7) is fixedly installed at the end of the two telescopic rods (6). The connecting plate (7) is located below the bottom of the connecting plate (7). A fixed frame (8) is provided, and an output motor (9) is fixedly installed on one side of the fixed frame (8). A cleaning roller (10) is rotatably connected between the inner walls of the fixed frame (8). The output end of the output motor (9) is connected to one end of the cleaning roller (10). Two lower buffer blocks (11) are symmetrically installed above the fixed frame (8). An upper buffer block (12) is slidably connected above the lower buffer block (11). The lower buffer block (11) is sleeved on the outer wall of the upper buffer block (12). A buffer spring (13) is provided between the inner walls of the lower buffer block (11) and the upper buffer block (12). The top of the upper buffer block (12) is connected to the connecting plate (7).

2. A device for cleaning graphite bipolar plates according to claim 1, characterized in that: A collection chamber (14) is fixedly installed on one side of the connecting plate (7), and a suction pump (15) is fixedly installed below the collection chamber (14). A connecting hose (16) is fixedly connected to one end of the suction pump (15), and a vacuum head (17) is fixedly installed on one side of the fixing frame (8). The other end of the connecting hose (16) is connected to the vacuum head (17).

3. A device for cleaning graphite bipolar plates according to claim 1, characterized in that: Two support frames (18) are symmetrically installed above the base (1) near its side. A column (19) is fixedly installed on the inner wall of the top of the support frame (18), and the other end of the column (19) is connected to the base (1).

4. A device for cleaning graphite bipolar plates according to claim 3, characterized in that: There are two pillars (19), and two compression springs (20) are respectively sleeved on the outside of the two pillars (19). A pressure plate (21) is provided between the two support frames (18). The two pillars (19) pass through both ends of the pressure plate (21). The pressure plate (21) is located below the compression springs (20).

5. A device for cleaning graphite bipolar plates according to claim 1, characterized in that: One end of the adjusting screw (3) is fixedly connected to a linkage wheel (22), and there are two linkage wheels (22), with a linkage belt (23) attached to the two linkage wheels (22).

6. A device for cleaning graphite bipolar plates according to claim 5, characterized in that: A control motor (24) is fixedly installed on one side of the base (1), and the output end of the control motor (24) is connected to one of the linkage wheels (22).

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