Fuel cell bipolar plate raw material screening device

Abstract

The utility model discloses a fuel cell bipolar plate raw material screening device, which relates to the technical field of fuel cell manufacturing, and comprises a base, a mounting plate is elastically mounted on the base, a screening box is fixedly mounted on the mounting plate, a screen is mounted in the screening box in a liftable manner, a recovery box is fixedly mounted on the outer side wall of the screening box, and the recovery box is fixedly mounted on the outer side wall of the screening box. And a vibration motor is fixedly mounted on the mounting plate. According to the design scheme, through the design that the screen cloth is installed in the screening box in a liftable mode, when materials on the screen cloth need to be cleaned, the screen cloth is pushed to the top of the screening box through the electric telescopic rod, and when the screen cloth moves to the top end of the screening box, the materials on the screen cloth can roll into the recycling box to be collected; and therefore, the screen does not need to be manually cleaned by an operator, so that the cleaning work of the screen is simple and rapid, and the screening efficiency of the graphite powder raw materials is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cell manufacturing, in particular to a fuel cell bipolar plate raw material screening device. Background Art

[0002] The key components of a fuel cell are the membrane electrode (MEA) and the bipolar plates. The bipolar plate assembly includes an anode flow field plate and a cathode flow field plate, which are combined and properly sealed to form a sealed coolant flow field between the cathode and anode plates, and are therefore commonly used in the art. Various transition channels, ports, pipes, and other features involving all three operating fluids (such as fuel, oxidant, and coolant) may also appear on the inactive side of these plates. The operating fluids are under a certain pressure, and all features within the plate must be properly sealed to prevent leakage between the fluids and the external environment.

[0003] Another requirement for the bipolar plate assembly is good electrical conductivity between the two plates. This is because a large amount of current generated by the fuel cell stack must pass between the two plates. The plates that make up the assembly can be metal or graphite. In this case, the performance test results of the plates made of graphite powder raw materials with different particle sizes will also be different. In order to ensure the performance of the bipolar plate, the graphite powder raw materials need to be screened. However, when the existing screening device screens the graphite powder, large particles of material will remain on the screen. The material remaining on the screen will affect the subsequent screening work. Therefore, after screening a certain amount of graphite powder raw materials, the operator needs to manually clean the material on the screen, which makes the screening of the graphite powder raw materials more cumbersome, and the operator takes a long time to clean the material, affecting the screening efficiency. Utility Model Content

[0004] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a fuel cell bipolar plate raw material screening device.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a fuel cell bipolar plate raw material screening device, comprising a base, a mounting plate elastically mounted on the base, a screening box fixedly mounted on the mounting plate, a screen mesh installed in the screening box in a liftable manner, a recovery box fixedly mounted on the outer side wall of the screening box, and a vibration motor fixedly mounted on the mounting plate.

[0006] Furthermore, the screening box is a cylindrical structure, the screen is slidably installed in the screening box, an electric telescopic rod is provided at the axis of the screening box, the electric telescopic rod is fixedly installed on the mounting plate, and the push rod of the electric telescopic rod is fixedly connected to the bottom of the screen.

[0007] Furthermore, the screen is a conical structure with a high center and a low periphery.

[0008] Furthermore, a material drop opening is provided at the bottom of the recovery box, and a material guide pipe is fixedly installed at the bottom of the material drop opening.

[0009] Furthermore, the mounting plate is provided with a plurality of through slots corresponding to the positions of the screens, the through slots are circumferentially arrayed on the periphery of the electric telescopic rod, a collecting box is provided below the through slots, and the collecting box is slidably mounted on the base.

[0010] Furthermore, hydraulic buffer rods are fixedly installed at the bottom of the mounting plate near the four end points, the bottom end of the hydraulic buffer rods is fixedly installed on the base, a spring is sleeved on the periphery of the hydraulic buffer rod, the two ends of the spring are respectively abutted against the mounting plate and the base, a mounting platform is provided on the side of the mounting plate, and a vibration motor is fixedly installed on the mounting platform.

[0011] The beneficial effect of the utility model is that the design of the utility model adopts the design of a screen that can be lifted and lowered in the screening box. When the material on the screen needs to be cleaned, the screen is pushed to the top of the screening box by an electric telescopic rod. When the screen moves to the top of the screening box, the material on the screen will roll into the recovery box for collection. Therefore, there is no need for the operator to manually clean the screen, which makes the screen cleaning work simple and quick, and effectively improves the screening efficiency of the graphite powder raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 This is a structural schematic diagram of the mounting plate of the utility model;

[0015] Figure 3 It is the front view of the utility model;

[0016] Figure 4 It is a schematic diagram of the internal structure of the utility model in the main viewing direction.

[0017] In the figure: 1. base, 2. mounting plate, 21. through slot, 22. mounting table, 3. screening box, 4. screen, 5. recovery box, 6. drop port, 7. vibration motor, 8. electric telescopic rod, 9. material guide pipe, 10. collection box, 11. hydraulic buffer rod, 12. spring. DETAILED DESCRIPTION

[0018] In order to more clearly illustrate the technical solution of the utility model, the utility model is further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the utility model. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on this drawing and embodiment, which all belong to the protection scope of the utility model.

[0019] according to Figure 1-4 As shown, a fuel cell bipolar plate raw material screening device includes a base 1, a mounting plate 2 is elastically mounted on the base 1, a screening box 3 is fixedly mounted on the mounting plate 2, a screen 4 is liftably mounted in the screening box 3, a recovery box 5 is fixedly mounted on the outer side wall of the screening box 3, and a vibration motor 7 is fixedly mounted on the mounting plate 2.

[0020] In this embodiment, the screening box 3 is a cylindrical structure, the screen 4 is slidably installed in the screening box 3, and an electric telescopic rod 8 is provided at the axis of the screening box 3. The electric telescopic rod 8 is fixedly installed on the mounting plate 2, and the push rod of the electric telescopic rod 8 is fixedly connected to the bottom of the screen 4. The screen 4 can be driven to move upward in the screening box 3 through the electric telescopic rod 8, thereby pushing the material on the screen 4 out of the screening box 3.

[0021] In this embodiment, the screen 4 is a conical structure with a high center and a low periphery. After the screen 4 moves to the top of the screening box 3, the material on the screen 4 will roll into the recovery box 5 for collection.

[0022] In this embodiment, a material drop opening 6 is provided at the bottom of the recovery box 5, and a material guide pipe 9 is fixedly installed at the bottom of the material drop opening 6. The material in the recovery box 5 is discharged outward through the material drop opening 6, and the material guide pipe 9 is connected to the material recovery device through a hose.

[0023] In this embodiment, the mounting plate 2 is provided with a plurality of through slots 21 corresponding to the positions of the screen 4. The through slots 21 are circumferentially arrayed on the periphery of the electric telescopic rod 8. A collecting box 10 is provided below the through slots 21. The collecting box 10 is slidably mounted on the base 1. The small particle materials screened out by the screen 4 pass through the through slots 21 and fall into the collecting box 10 for collection.

[0024] In this embodiment, hydraulic buffer rods 11 are fixedly installed at the bottom of the mounting plate 2 near the four end points, and the bottom end of the hydraulic buffer rod 11 is fixedly installed on the base 1. A spring 12 is sleeved on the periphery of the hydraulic buffer rod 11, and the two ends of the spring 12 are respectively abutted against the mounting plate 2 and the base 1. A mounting platform 22 is provided on the side of the mounting plate 2, and a vibration motor 7 is fixedly installed on the mounting platform 22. The vibration motor 7 is used to make the mounting plate 2 vibrate up and down, thereby quickly screening the material in the screening box 3.

[0025] When the novel device is used, firstly, the graphite powder raw material is poured into the screening box 3, and the vibration motor 7 is started. Under the action of the vibration motor 7 and the spring 12, the mounting plate 2 vibrates up and down as a whole, and the graphite powder raw material is screened through the screen 4. Small particles of material pass through the screen 4 and fall into the collecting box 10 through the through slot 21 for collection, and large particles of material remain on the screen 4. When it is necessary to clean the material on the screen 4, the electric telescopic rod 8 is started, and the screen 4 is pushed to the top of the screening box 3 through the electric telescopic rod 8. When the screen 4 moves to the top of the screening box 3, the material on the screen 4 will roll into the recovery box 5 for collection, thereby realizing the rapid cleaning of the screen 4. The material in the recovery box 5 is discharged outwardly through the drop port 6, and is transported to the material recovery device through the guide pipe 9 for recovery. After that, the electric telescopic rod 4 is reset to continue the screening of the graphite powder raw material.

[0026] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A fuel cell bipolar plate raw material screening device, comprising a base (1), characterized in that: A mounting plate (2) is elastically mounted on the base (1), a screening box (3) is fixedly mounted on the mounting plate (2), a screen (4) is movably mounted in the screening box (3), the screen (4) is a conical structure with a high center and a low periphery, a recovery box (5) is fixedly mounted on the outer wall of the screening box (3), and a vibration motor (7) is fixedly mounted on the mounting plate (2).

2. A fuel cell bipolar plate raw material screening device according to claim 1, characterized in that: The screening box (3) is a cylindrical structure. The screen (4) is slidably mounted in the screening box (3). An electric telescopic rod (8) is provided at the axis of the screening box (3). The electric telescopic rod (8) is fixedly mounted on the mounting plate (2). The push rod of the electric telescopic rod (8) is fixedly connected to the bottom of the screen (4).

3. A fuel cell bipolar plate raw material screening device according to claim 1, characterized in that: The bottom of the recovery box (5) is provided with a material drop opening (6), and the bottom of the material drop opening (6) is fixedly installed with a material guide pipe (9).

4. A fuel cell bipolar plate raw material screening device according to claim 2, characterized in that: The mounting plate (2) is provided with a plurality of groups of through slots (21) corresponding to the positions of the screens (4); the through slots (21) are arranged in a circumferential array on the periphery of the electric telescopic rod (8); a collection box (10) is provided below the through slots (21); and the collection box (10) is slidably mounted on the base (1).

5. A fuel cell bipolar plate raw material screening device according to claim 1, characterized in that: A hydraulic buffer rod (11) is fixedly mounted at the bottom of the mounting plate (2) near the four end points, the bottom end of the hydraulic buffer rod (11) is fixedly mounted on the base (1), a spring (12) is sleeved on the periphery of the hydraulic buffer rod (11), the two ends of the spring (12) are respectively in contact with the mounting plate (2) and the base (1), a mounting platform (22) is provided on the side of the mounting plate (2), and a vibration motor (7) is fixedly mounted on the mounting platform (22).

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