Metal bipolar plate cleaning device

Abstract

The present invention belongs to the technical field of metal bipolar plate cleaning, and specifically relates to a metal bipolar plate cleaning device, comprising a cleaning basket, the bottom surface of which is evenly distributed with nozzles; a first support frame and a second support frame are movably connected from top to bottom in the cleaning basket, respectively, for placing a plurality of metal bipolar plates to be cleaned; a transmission rod is rotatably connected to the inner wall of the cleaning basket, the upper end of the transmission rod is movably connected to the first support frame, and the lower end is movably connected to the second support frame; a driving mechanism is provided on the cleaning basket, for driving the transmission rod to swing back and forth around the rotationally connected position, driving the first support frame and the second support frame to move back and forth, and making the first support frame and the second support frame move in opposite directions, thereby changing the inclination angle of the metal bipolar plate to be cleaned and the cleaning liquid spraying direction, so that the surface of the bipolar plate collides with the cleaning liquid sprayed from the cleaning liquid nozzle at multiple angles, and the flow channel of the bipolar plate can fully contact the cleaning liquid, thereby realizing multi-angle and efficient cleaning of the bipolar plate.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal bipolar plate cleaning, and in particular relates to a metal bipolar plate cleaning device. Background Art

[0002] Metal bipolar plates have numerous complex and fine flow channels, which come into contact with contaminants during processing and other processes. Therefore, they must be cleaned before use. However, due to the complexity and fineness of these flow channels, simply soaking the plates in a cleaning solution is not effective in removing contaminants.

[0003] To improve the cleaning effect, existing bipolar plate cleaning devices spray cleaning liquid onto the surface of the metal bipolar plate to remove stains. However, in current devices, the cleaning liquid jet can often only reach a localized area on the surface of the bipolar plate, leaving blind spots on the metal bipolar plate and resulting in poor cleaning results. For example, patent CN117443839B provides a bipolar plate cleaning device in which a cleaning nozzle sprays cleaning liquid from one end of the plate to clean the entire bipolar plate. For curved flow channel structures, the flow channel surface facing away from the direction of the cleaning liquid spray is difficult to clean. Patents CN108296206A, CN220611665U, and CN210435019U also have the same problem. In addition, to improve cleaning efficiency, multiple metal bipolar plates are often cleaned simultaneously. When cleaning multiple bipolar plates, the metal plates affect each other, and only the outer bipolar plates can be exposed to the cleaning liquid jet, while the cleaning effect on the middle bipolar plates is poor. For example, patent CN108296206A provides a cleaning and storage tool for fuel cell bipolar plates. The bipolar plates are placed vertically. After the cleaning liquid jet passes through the bipolar plates loaded on the periphery of the tool, the impact force decreases rapidly, and the plates in the middle of the tool cannot be fully cleaned.

[0004] Analysis shows that during the current cleaning process of metal bipolar plates, there are often cleaning dead corners on the plate surface, and when multiple metal bipolar plates are cleaned at the same time, some plates cannot be cleaned. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a metal bipolar plate cleaning device, which can clean multiple metal bipolar plates at the same time and ensure that there is no cleaning dead corner on each metal bipolar plate.

[0006] The present invention is specifically implemented through the following technical solutions.

[0007] A metal bipolar plate cleaning device comprises a cleaning basket. A nozzle is provided on the bottom surface of the cleaning basket for spraying cleaning liquid.

[0008] The cleaning basket is movably connected to a first support frame and a second support frame from top to bottom. The first support frame and the second support frame are used to place multiple metal bipolar plates to be cleaned. The bottom of the metal bipolar plate to be cleaned is placed on the second support frame, and the top of the metal bipolar plate to be cleaned is limited by the first support frame, and two adjacent metal bipolar plates to be cleaned do not contact each other.

[0009] A transmission rod is rotatably connected to the inner wall of the cleaning basket, the upper end of the transmission rod is movably connected to the first support frame, and the lower end of the transmission rod is movably connected to the second support frame.

[0010] The cleaning basket is also provided with a driving mechanism, which is used to drive the transmission rod to swing back and forth around the rotationally connected position; during the back-and-forth swinging of the transmission rod, the first support frame and the second support frame are driven to move back and forth, and the movement directions of the first support frame and the second support frame are opposite, thereby changing the inclination angle of each metal bipolar plate to be cleaned and the direction of cleaning liquid spraying.

[0011] In a preferred embodiment of the present invention, the first support frame includes a first frame, and the two ends of the first frame along the movement direction are detachably connected to the mounting parts, the upper end of the transmission rod is movably connected to the mounting parts, and the two mounting parts are rotatably connected to the inner walls of the cleaning basket respectively. The first frame is suspended in the cleaning basket through the mounting parts and moves back and forth under the drive of the transmission rod.

[0012] In a preferred embodiment of the present invention, the mounting member includes a first connecting portion, which is a rod structure. A first card slot is provided at the upper end of the transmission rod, and the first card slot is engaged with the first connecting portion; the first connecting portion is also detachably connected to the first frame.

[0013] The two ends of the first connection part are respectively fixed to one end of the second connection part, the other ends of the two second connection parts are respectively fixed to one end of the third connection part, and the other ends of the two third connection parts are respectively rotatably connected to the inner walls opposite to the cleaning basket, the second connection part and the first connection part have a first angle, the third connection part and the second connection part have a second angle, and the first angle and the second angle are located on both sides of the second connection part.

[0014] In a preferred embodiment of the present invention, a plurality of limiting rods are arranged in parallel in the first frame, and the top of the metal bipolar plate to be cleaned is located between two adjacent limiting rods.

[0015] In a preferred embodiment of the present invention, the second support frame includes a second frame, the lower ends of the two opposite inner walls of the cleaning basket are respectively provided with convex edges, the two sides of the second frame are respectively placed on the convex edges, and the lower end of the transmission rod is provided with a second card slot, and the second card slot is engaged with the second frame.

[0016] In a preferred embodiment of the present invention, a plurality of parallel wavy support members are detachably connected to the second frame, and the plurality of parallel wavy support members constitute a plurality of parallel storage grooves, and the bottom of the metal bipolar plate to be cleaned is located in the storage grooves.

[0017] In a preferred embodiment of the present invention, the driving mechanism includes a connecting rod and an adjusting wheel. The connecting rod is passed through the side wall of the cleaning basket. One end of the connecting rod is located inside the cleaning basket and is movably connected to the top of the transmission rod. The other end of the connecting rod is located outside the cleaning basket and is threadedly connected to the adjusting wheel.

[0018] In a preferred embodiment of the present invention, water leakage channels are provided on the bottom and side walls of the cleaning basket.

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

[0020] The device of the present invention includes a cleaning basket, the bottom surface of the cleaning basket is provided with a nozzle, the nozzle is used to spray cleaning liquid; the cleaning basket is movably connected to a first support frame and a second support frame from top to bottom, the first support frame and the second support frame are used to place a plurality of metal bipolar plates to be cleaned, the bottom of the metal bipolar plate to be cleaned is placed on the second support frame, and the top of the metal bipolar plate to be cleaned is limited by the first support frame; a transmission rod is rotatably connected to the inner wall of the cleaning basket, the upper end of the transmission rod is movably connected to the first support frame, and the lower end is movably connected to the second support frame; a driving mechanism is also provided on the cleaning basket, and the driving mechanism The device is used to drive the transmission rod to swing back and forth around the rotationally connected position. During the swinging of the transmission rod, the first support frame and the second support frame are driven to move back and forth, and the movement directions of the first support frame and the second support frame are opposite, thereby changing the inclination angle between the metal bipolar plate to be cleaned and the direction of the cleaning liquid spray. This allows the surface of the metal bipolar plate to collide with the cleaning liquid sprayed from the cleaning liquid nozzle at various angles. When the angle changes, the position at which the cleaning liquid is sprayed onto the bipolar plate changes, ensuring that every position in the bipolar plate flow channel can contact the cleaning liquid, avoiding cleaning dead corners and improving the cleaning effect of the bipolar plate. In addition, the nozzles are distributed at the bottom of each bipolar plate. By adjusting the angle of the bipolar plate, different positions of each bipolar plate can be cleaned, avoiding mutual influence between the bipolar plates and improving cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the overall structure of the metal bipolar plate cleaning device of the present invention.

[0022] Figure 2 This is a schematic diagram of the specific internal structure of the metal bipolar plate cleaning device.

[0023] Figure 3 This is a schematic diagram of the specific connection relationship between the first support frame, the transmission rod and the mounting member.

[0024] Figure 4 Schematic diagram of the installation structure.

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the metal bipolar plate cleaning device of the present invention.

[0026] Figure 6 It is a schematic diagram of the connection structure between the cleaning basket and the transmission rod.

[0027] Figure 7 This is a schematic diagram of the linkage relationship between the various components of the metal bipolar plate cleaning device of the present invention.

[0028] Description of reference numerals:

[0029] 1. Cleaning basket, 1-1. Convex edge, 1-2. Second connecting piece, 2. Second frame, 3. Wave-shaped support member, 3-1. Storage slot, 4-1. First connecting part, 4-2. Second connecting part, 4-3. Third connecting part, 5. Transmission rod, 5-1. First slot, 5-2. Second slot, 5-3. First positioning pin, 5-4. Second positioning pin, 6. First frame, 6-1. Limiting rod, 7. Connecting rod, 7-1. First connecting piece, 8. Adjusting wheel, 9. Metal bipolar plate to be cleaned, 10. Nozzle, θ1. First angle, θ2. Second angle. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand and implement the technical solution of the present invention, the present invention is further described below with reference to specific embodiments and drawings, but the embodiments are not intended to limit the present invention.

[0031] A metal bipolar plate cleaning device, such as Figure 1 、 Figure 2 and Figure 6 As shown, it includes a cleaning basket 1, and a spray head 10 is provided on the bottom surface of the cleaning basket 1. The spray head 10 is used to spray cleaning liquid.

[0032] The cleaning basket 1 is movably connected with a first support frame and a second support frame from top to bottom. The first support frame and the second support frame are used to place multiple metal bipolar plates 9 to be cleaned. The bottom of the metal bipolar plate 9 to be cleaned is placed on the second support frame, and the top of the metal bipolar plate 9 to be cleaned is limited by the first support frame, and two adjacent metal bipolar plates 9 to be cleaned do not contact each other.

[0033] A transmission rod 5 is rotatably connected to the inner wall of the cleaning basket 1 , the upper end of the transmission rod 5 is movably connected to the first support frame, and the lower end of the transmission rod 5 is movably connected to the second support frame.

[0034] The cleaning basket 1 is also provided with a drive mechanism for driving the transmission rod 5 to swing back and forth about the pivoting connection point. During the swinging of the transmission rod 5, the first and second support frames are driven to move back and forth, with the first and second support frames moving in opposite directions, thereby changing the inclination angle of each metal bipolar plate 9 to be cleaned relative to the direction of the cleaning liquid spray. As the inclination angle changes, the position at which the cleaning liquid is sprayed onto the metal bipolar plate 9 to be cleaned changes. In other words, as the inclination angle changes, the cleaning liquid can be applied to different locations of the metal bipolar plate 9 to be cleaned. The inclination angle can be adjusted according to cleaning requirements to clean the metal bipolar plate 9 to be cleaned, avoiding blind spots and improving the cleaning effect. Furthermore, each metal bipolar plate 9 to be cleaned is placed separately, and the cleaning processes do not interfere with each other. The contact surface between the first and second support frames and the metal bipolar plates 9 to be cleaned is extremely small, which does not affect the contact between the cleaning liquid and the surface of the metal bipolar plates 9 to be cleaned.

[0035] In actual production, the size of the cleaning basket 1 and the number of nozzles 10 can be increased or decreased based on the production scale and the number and size of bipolar plates. The device of the present invention can not only independently clean metal bipolar plates, but can also be installed as a metal bipolar plate container within other bipolar plate cleaning equipment to synergistically enhance the cleaning ability of metal bipolar plates.

[0036] It should be noted that the first support frame and the second support frame move in opposite directions in the cleaning basket 1, that is, the first support frame moves under the traction of the upper end of the transmission rod 5, and the second support frame moves under the traction of the lower end of the transmission rod 5. In a preferred embodiment of the present invention, Figure 2-Figure 5 As shown, the first support frame includes a first frame 6, and the two ends of the first frame 6 along the movement direction are detachably connected to the mounting parts. The upper end of the transmission rod 5 is movably connected to the mounting parts, and the two mounting parts are rotatably connected to the inner walls of the cleaning basket 1 respectively. The first frame 6 is suspended in the cleaning basket 1 through the mounting parts and moves back and forth under the drive of the transmission rod 5.

[0037] In order to make the first frame 6 be suspended in the cleaning basket 1 and move back and forth under the drive of the transmission rod 5, in a preferred embodiment of the present invention, as shown in FIG. Figure 3 and Figure 4 As shown, the mounting member includes a first connecting portion 4-1, which is a rod structure. The upper end of the transmission rod 5 is provided with a first engaging slot 5-1, which engages with the first connecting portion 4-1. The first connecting portion 4-1 is also detachably connected to the first frame 6. In a preferred embodiment of the present invention, the first frame 6 and the first connecting portion 4-1 can be flexibly connected using mounting slots. Mounting slots are provided at the four corners of the first frame 6, which are flexibly connected to the first connecting portion 4-1 at the corresponding positions. When the upper end of the transmission rod 5 swings, it drives the first connecting portion 4-1 and the first frame 6 to move adaptively, causing the first frame 6 to move back and forth between the opposite side walls of the cleaning basket 1.

[0038] like Figure 4 As shown, in order to make the first connecting part 4-1 swing with the transmission rod 5, the two ends of the first connecting part 4-1 are respectively fixed to one end of the second connecting part 4-2, and the other ends of the two second connecting parts 4-2 are respectively fixed to one end of the third connecting part 4-3. The other ends of the two third connecting parts 4-3 are respectively rotatably connected to the inner wall opposite to the cleaning basket 1. The second connecting part 4-2 and the first connecting part 4-1 form a first angle θ1, and the third connecting part 4-3 and the second connecting part 4-2 form a second angle θ2, and the first angle θ1 and the second angle θ2 are located on either side of the second connecting part 4-2. Through the above structure, the first connecting part 4-1 swings with the rotation point of the third connecting part 4-3 and the cleaning basket 1 as the center and the length of the second connecting part 4-2 as the swing radius.

[0039] In order to ensure that the metal bipolar plate 9 to be cleaned can be placed stably and that each metal bipolar plate to be cleaned does not affect each other, in a preferred embodiment of the present invention, a plurality of limit rods 6-1 are parallelly assembled in the first frame 6, and the top of the metal bipolar plate 9 to be cleaned is located between two adjacent limit rods 6-1.

[0040] In order to make the second support frame move under the traction of the lower end of the transmission rod 5, in a preferred embodiment of the present invention, as shown in FIG. Figure 2 、 Figure 3 and Figure 6 As shown, the second support frame includes a second frame 2. The lower ends of two opposing inner walls of the cleaning basket 1 are each provided with a flange 1-1. The two sides of the second frame 2 are placed on the flanges 1-1. The lower end of the transmission rod 5 is provided with a second slot 5-2, which engages with the second frame 2. The flanges 1-1 provide support for the second frame 2, ensuring its smooth movement.

[0041] In order to prevent the multiple metal bipolar plates 9 to be cleaned from affecting each other and to ensure the stability of the metal bipolar plates 9 to be cleaned, in a preferred embodiment of the present invention, as shown in FIG. Figure 2 and Figure 5 As shown, a plurality of parallel wavy support members 3 are detachably connected to the second frame 2 , and the plurality of parallel wavy support members 3 constitute a plurality of parallel storage grooves 3 - 1 , and the bottom of the metal bipolar plate 9 to be cleaned is located in the storage grooves 3 - 1 .

[0042] In order to enable the transmission rod 5 to swing, in a preferred embodiment of the present invention, as shown in FIG. Figure 3 As shown, the drive mechanism includes a connecting rod 7 and an adjustment wheel 8. The connecting rod 7 is provided on the side wall of the cleaning basket 1. One end of the connecting rod 7 is located inside the cleaning basket 1 and is movably connected to the top of the transmission rod 5. The other end of the connecting rod 7 is located outside the cleaning basket 1 and is threadedly connected to the adjustment wheel 8. In a preferred embodiment of the present invention, one end of the connecting rod 7 is fixedly connected to a first connecting member 7-1, and the transmission rod 5 is movably connected to the first connecting member 7-1 via a first positioning pin 5-3.

[0043] In a preferred embodiment of the present invention, Figure 6 As shown, a second connecting member 1-2 is fixed to the inner wall of the cleaning basket. Along the height direction of the cleaning basket, the second connecting member 1-2 is located between the first support frame and the second support frame, and the transmission rod 5 is rotatably connected to the second connecting member 1-2 through a second positioning pin 5-4.

[0044] In a preferred embodiment of the present invention, water leakage channels are provided on the bottom and side walls of the cleaning basket 1 to allow the cleaning liquid to be discharged in time, thereby avoiding pollution caused by accumulated water and affecting the cleaning effect.

[0045] In actual use, such as Figure 7As shown, the bottom of the metal bipolar plate 9 to be cleaned is separated and placed upright in the storage tank 3-1, and the top of the metal bipolar plate 9 to be cleaned is placed on the block formed by the two limit rods 6-1. The switch of the nozzle 10 is turned on to spray the cleaning liquid, and the adjusting wheel 8 is rotated to make the connecting rod 7 move axially, driving the transmission rod 5 to swing, and then the first frame 6 and the second frame 2 move. When the appropriate cleaning inclination angle is reached, the adjusting wheel 8 is stopped. At this time, the position of the connecting rod 7 will be fixed, and the inclination angle of the metal bipolar plate 9 to be cleaned will not be changed during the cleaning process. The cleaning liquid will change due to the impact of the cleaning liquid, so that the end point of the cleaning liquid jet is located at the upper end of the metal bipolar plate 9 to be cleaned (the upper end here is the end of the metal bipolar plate 9 to be cleaned away from the cleaning nozzle). After cleaning for 1 minute, rotate the adjusting wheel 8, consistent with the steps described above, so that the end point position of the cleaning liquid jet is lowered, and clean for 1 minute, and then repeat the above steps, so that the end point of the cleaning liquid jet gradually moves downward and then gradually moves upward on the other side of the metal bipolar plate 9 to be cleaned, until the cleaning liquid jet has cleaned the upper end of the other side of the bipolar plate 9, and the cleaning is completed. Through the above cleaning process, each position in the metal bipolar plate 9 to be cleaned can be fully cleaned, and the cleaning time can be adjusted according to actual needs. For example, for difficult-to-clean positions, the cleaning effect can be improved by adjusting the angle and extending the cleaning time. In addition, the device of the present invention can clean multiple metal bipolar plates 9 to be cleaned at the same time without affecting each other, thereby improving the cleaning efficiency.

[0046] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications of the present invention fall within the scope of the claims and their equivalents, such changes and modifications are intended to be included.

Claims

1. A metal bipolar plate cleaning device, characterized in that: It comprises a cleaning basket (1), the bottom surface of the cleaning basket (1) is evenly distributed with spray heads (10), and the spray heads (10) are used to spray cleaning liquid; The cleaning basket (1) is provided with a first support frame and a second support frame movably connected from top to bottom, respectively. The first support frame and the second support frame are used to place a plurality of metal bipolar plates (9) to be cleaned. The bottom of the metal bipolar plates (9) to be cleaned is placed on the second support frame, and the top is limited by the first support frame, and two adjacent metal bipolar plates (9) to be cleaned do not contact each other. A transmission rod (5) is rotatably connected to the inner wall of the cleaning basket (1), the upper end of the transmission rod (5) is movably connected to the first support frame, and the lower end of the transmission rod (5) is movably connected to the second support frame; The cleaning basket (1) is also provided with a driving mechanism, which is used to drive the transmission rod (5) to swing back and forth around the rotationally connected position; during the swinging back and forth of the transmission rod (5), the first support frame and the second support frame are driven to move back and forth, and the movement directions of the first support frame and the second support frame are opposite, thereby changing the inclination angle of each metal bipolar plate (9) to be cleaned and the direction of the cleaning liquid spraying.

2. The metal bipolar plate cleaning device according to claim 1, characterized in that: The first support frame comprises a first frame (6), and the first frame (6) is detachably connected to mounting parts at both ends along the movement direction. The upper end of the transmission rod (5) is movably connected to the mounting parts, and the two mounting parts are rotatably connected to the inner wall of the cleaning basket (1). The first frame (6) is suspended in the cleaning basket (1) through the mounting parts and moves back and forth under the drive of the transmission rod (5).

3. The metal bipolar plate cleaning device according to claim 2, characterized in that: The mounting member comprises a first connecting portion (4-1), the first connecting portion (4-1) being a rod structure, a first clamping slot (5-1) being provided at the upper end of the transmission rod (5), the first clamping slot (5-1) being clamped with the first connecting portion (4-1); the first connecting portion (4-1) is also detachably connected to the first frame (6); The two ends of the first connecting part (4-1) are respectively fixedly connected to one end of the second connecting part (4-2), the other ends of the two second connecting parts (4-2) are respectively fixedly connected to one end of the third connecting part (4-3), the other ends of the two third connecting parts (4-3) are respectively rotatably connected to the inner walls opposite to the cleaning basket (1), the second connecting part (4-2) and the first connecting part (4-1) have a first angle (θ1), the third connecting part (4-3) and the second connecting part (4-2) have a second angle (θ2), and the first angle (θ1) and the second angle (θ2) are located on both sides of the second connecting part (4-2).

4. The metal bipolar plate cleaning device according to claim 2, characterized in that: A plurality of limiting rods (6-1) are arranged in parallel in the first frame (6), and the top of the metal bipolar plate (9) to be cleaned is located between two adjacent limiting rods (6-1).

5. The metal bipolar plate cleaning device according to claim 1, characterized in that: The second support frame comprises a second frame (2), the lower ends of the two opposite inner walls of the cleaning basket (1) are respectively provided with convex edges (1-1), the two sides of the second frame (2) are respectively placed on the convex edges (1-1), and the lower end of the transmission rod (5) is provided with a second card slot (5-2), and the second card slot (5-2) is card-engaged with the second frame (2).

6. The metal bipolar plate cleaning device according to claim 5, characterized in that: A plurality of parallel wavy support members (3) are detachably connected to the second frame (2), and the plurality of parallel wavy support members (3) form a plurality of parallel storage grooves (3-1), and the bottom of the metal bipolar plate (9) to be cleaned is located in the storage grooves (3-1).

7. The metal bipolar plate cleaning device according to claim 1, characterized in that: The driving mechanism comprises a connecting rod (7) and an adjusting wheel (8); the connecting rod (7) is passed through the side wall of the cleaning basket (1); one end of the connecting rod (7) is located inside the cleaning basket (1) and is movably connected to the top of the transmission rod (5); the other end of the connecting rod (7) is located outside the cleaning basket (1) and is threadedly connected to the adjusting wheel (8).

8. The metal bipolar plate cleaning device according to claim 1, characterized in that: The bottom and side walls of the cleaning basket (1) are both provided with water leakage channels.

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