Rapid stack loading device for hydrogen fuel cell stack

Abstract

The utility model discloses a hydrogen fuel cell stack quick loading device, and particularly relates to the technical field of fuel cells, the hydrogen fuel cell stack quick loading device comprises a fixing frame, a clamping mechanism and a pressing mechanism, the clamping mechanism comprises a mounting seat, an adjusting screw rod is arranged on the inner wall of one side of the mounting seat, and clamping plates are sleeved on the outer walls of the two ends of the adjusting screw rod; the pressing mechanism comprises a pressing plate and two movable plates, a hydraulic cylinder is arranged at the top of the pressing plate, a cam is arranged on the inner wall of the pressing plate, and the outer walls of the two ends of the cam are movably connected with the two movable plates respectively. According to the utility model, the distance between the two clamping plates can be adjusted by adjusting the rotation of the screw rod, so that the clamping plates and the baffle plate can clamp the single batteries with different sizes, the cam can push the movable plate to extend outwards, and the hydraulic cylinder works to enable the pressing plate and the movable plate to press the single batteries with different sizes, so that the single batteries with different sizes can be clamped. And the pile loading efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cells, in particular to a hydrogen fuel cell stack fast assembly device. Background Art

[0002] A hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. Its basic principle is the reverse reaction of water electrolysis, where hydrogen and oxygen are supplied to the anode and cathode respectively. After hydrogen diffuses outward through the anode and reacts with the electrolyte, it releases electrons and reaches the cathode through an external load. The hydrogen fuel cell stack is the place where the electrochemical reaction occurs. It is the core component of the hydrogen fuel cell system and maintains the energy output process of the entire fuel cell system. The fuel cell stack is composed of multiple single cells. When working, hydrogen and oxygen are distributed to the bipolar plates of each single cell through the main gas channel of the stack, and are evenly distributed to the electrodes through the bipolar plate guide. The electrochemical reaction occurs through the electrode support and contact with the catalyst.

[0003] A battery stack assembly mechanism with publication number CN214114043U includes a stacker, a flipper, an assembly press and a conveying device arranged on one side of the assembly press, the stacker and the flipper are both arranged on one side of the conveying device, and the conveying device is a bidirectional conveying device. When the battery stack assembly is required, the materials are first stacked to the stacker position, and then the conveying device moves forward to transport the materials to the assembly press. After the assembly is completed, the materials are transported to the flipper for flipping, and then the conveying device moves in the reverse direction to transport the materials to the stacker position, and finally the processed battery stack is taken out. In the battery stack assembly mechanism provided in the present application, since the conveying device can transport materials in bidirectional motion, the battery stack assembly can be completed by arranging the flipper and the stacker on one side of the assembly press, which effectively shortens the length of the material transportation process and reduces the floor space occupied by the battery stack assembly mechanism.

[0004] Deficiencies in the prior art: The existing stacking device cannot be conveniently adjusted according to the size of the battery stack during the stacking operation, which makes the battery stack easily shifted during the stacking process. At the same time, when the battery stack is pressed, the edge part is prone to loose pressing, which makes the internal structure of the battery stack loose, thereby making the battery stack unable to work stably, affecting the efficiency of the stacking. Utility Model Content

[0005] To this end, an embodiment of the utility model provides a hydrogen fuel cell stack rapid stacking device to solve the problem in the prior art that the stack is prone to deviation during the stacking process due to the inability to conveniently adjust according to the size of the stack, and the internal structure of the stack is prone to looseness, which will affect the working state and service life of the stack and cause low stacking efficiency.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides the following technical solution: a hydrogen fuel cell stack rapid stacking device, including a fixing frame, and also including:

[0007] A clamping mechanism, arranged at the inner bottom of the fixing frame, for clamping and limiting the hydrogen fuel cell stack;

[0008] A pressing mechanism, arranged at the inner top of the fixing frame, is used to press the hydrogen fuel cell stack;

[0009] The clamping mechanism comprises a mounting seat, the mounting seat is fixedly mounted on one side of the bottom inner side of the fixing frame, an inner wall of one side of the mounting seat is provided with an adjusting screw, one end of the adjusting screw is provided with a first motor, both ends of the outer walls of the adjusting screw are threadedly sleeved with clamping plates, an inner wall of the two clamping plates on a side away from the mounting seat is provided with a mounting groove, a traction spring is fixedly mounted on the top and bottom of the inner wall of the mounting groove, a movable seat is fixedly mounted on one end of the traction spring away from the inner wall of the mounting groove, a traction plate is rotatably mounted on the outer wall of one end of the two movable seats, and a blocking plate is rotatably mounted on the side of the two traction plates at the same end away from the movable seat;

[0010] The pressing mechanism includes a pressing plate and two movable plates. A hydraulic cylinder is arranged on the top of the pressing plate. A rotating shaft is rotatably installed on the top of the inner wall of the pressing plate. A second motor is arranged on the top of the rotating shaft. A cam is fixedly sleeved on the outer side of the bottom of the rotating shaft. The outer walls at both ends of the cam are movably connected to the two movable plates respectively.

[0011] Preferably, a movable groove is provided on an outer wall of one side of the mounting seat, an inner wall of the movable groove is rotatably connected to the adjusting screw rod, and two ends of the inner wall of the movable groove are movably connected to the outer walls of one side of the two clamping plates respectively.

[0012] Preferably, an outer wall at one end of the mounting seat is fixedly connected to the first motor, and the first motor is transmission-connected to the adjusting screw rod via an output shaft.

[0013] Preferably, a limiting rod is fixedly mounted on the inner wall of the mounting groove, the top and bottom outer walls of the limiting rod are movably connected to the inner walls of two movable seats at the same end respectively, and the limiting rod is movably inserted into the inner sides of two traction springs at the same end.

[0014] Preferably, the top of the fixing frame is fixedly connected to the hydraulic cylinder, and the output end of the hydraulic cylinder passes through the top inner wall of the fixing frame and is fixedly connected to the top of the pressure plate.

[0015] Preferably, limiting grooves are provided on both sides of the inner wall of the pressure plate, and sliders are fixedly installed on both sides of the outer walls at opposite ends of the two movable plates, and the two ends of the inner wall of the limiting groove are movably connected to the outer walls of the two sliders on the same side.

[0016] Preferably, a connecting spring is fixedly installed between the two sliders at the same end, and the slider and the limiting groove are both arranged as rectangular structures in a left-side vertical section.

[0017] Preferably, the inner side of the top of the pressure plate is fixedly connected to the second motor, and the second motor is transmission-connected to the rotating shaft via an output shaft.

[0018] The utility model embodiment has the following advantages:

[0019] 1. The utility model makes the adjustment screw rotate by the operation of the first motor, thereby adjusting the distance between the two clamping plates. At the same time, the distance between the blocking plate and the clamping plate can be adjusted under the traction of the traction spring and the traction plate, thereby making the clamping plate and the blocking plate clamp and fix single cells of different sizes, so that the hydrogen fuel cell stack remains stable during the stacking process, and can avoid deviation during the stacking process. At the same time, the operation of the second motor makes the cam push the movable plate to extend outward, thereby conveniently adjusting the pressing mechanism according to the size of the single cell. The operation of the hydraulic cylinder makes the pressing plate and the movable plate stably press the single cells of different sizes, making the stacking operation of the hydrogen fuel cell stack more convenient, and can improve the efficiency of stacking;

[0020] 2. The utility model can limit the movement of the clamping plate through the movable groove, so that the clamping plate remains stable during the adjustment process, the installation groove and the limiting rod can limit the movement of the movable seat, so that the blocking plate remains stable during the movement, so that the clamping plate and the blocking plate can stably clamp and fix the single battery structure of the battery stack, the limiting groove can limit the movement of the slider, so that the movable plate remains stable during the movement, and the connecting spring can pull and limit the two movable plates, so that the movable plate can be easily reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0022] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a front vertical sectional view of the utility model;

[0025] Figure 3 For this utility model Figure 2 A magnified view of part A;

[0026] Figure 4 It is an exploded view of the three-dimensional structure of the clamping mechanism of the utility model;

[0027] Figure 5 It is an exploded view of the three-dimensional structure of the pressing mechanism of the utility model.

[0028] In the figure: 1. Fixed frame;

[0029] 2. Clamping mechanism; 201. Mounting seat; 202. Active slot; 203. Adjusting screw rod; 204. First motor; 205. Clamping plate; 206. Mounting slot; 207. Traction spring; 208. Active seat; 209. Limiting rod; 210. Traction plate; 211. Blocking plate;

[0030] 3. Pressing mechanism; 301. Pressing plate; 302. Hydraulic cylinder; 303. Limiting groove; 304. Rotating shaft; 305. Second motor; 306. Cam; 307. Movable plate; 308. Sliding block; 309. Connecting spring. DETAILED DESCRIPTION

[0031] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Refer to the instruction manual Figure 1 The hydrogen fuel cell stack rapid stacking device of this embodiment includes a fixing frame 1 and also includes:

[0033] The clamping mechanism 2 is arranged at the inner bottom of the fixing frame 1 and is used to clamp and limit the hydrogen fuel cell stack;

[0034] The pressing mechanism 3 is arranged at the inner top of the fixing frame 1 and is used for pressing the hydrogen fuel cell stack.

[0035] In order to conveniently clamp and fix the hydrogen fuel cell stacks of different sizes, such as Figure 2 and Figure 4 As shown, the clamping mechanism 2 includes a mounting seat 201, which is fixedly mounted on one side of the bottom inner side of the fixing frame 1, an adjusting screw rod 203 is arranged on the inner wall of one side of the mounting seat 201, and a first motor 204 is arranged on one end of the adjusting screw rod 203, and a clamping plate 205 is threadedly sleeved on the outer walls of both ends of the adjusting screw rod 203, and a mounting groove 206 is opened on the inner wall of the two clamping plates 205 away from the mounting seat 201, and a traction spring 207 is fixedly mounted on the top and bottom of the inner wall of the mounting groove 206, and a movable seat 20 is fixedly mounted on one end of the traction spring 207 away from the inner wall of the mounting groove 206. 8. A traction plate 210 is rotatably installed on the outer wall of one end of the two movable seats 208, and a blocking plate 211 is rotatably installed on the side of the two traction plates 210 at the same end away from the movable seat 208. The first motor 204 works to rotate the adjusting screw rod 203, so as to adjust the distance between the two clamping plates 205. Under the traction action of the traction spring 207 and the traction plate 210, the distance between the clamping plate 205 and the blocking plate 211 can be adjusted. The battery stack can be clamped and limited by the two clamping plates 205 and the two blocking plates 211, so that the battery stack remains stable during the stacking process.

[0036] In order to make the connection between the battery stacks more compact, Figure 2-3 and Figure 5 As shown, the pressing mechanism 3 includes a pressing plate 301 and two movable plates 307. A hydraulic cylinder 302 is arranged on the top of the pressing plate 301. A rotating shaft 304 is rotatably installed on the top of the inner wall of the pressing plate 301. A second motor 305 is arranged on the top of the rotating shaft 304. A cam 306 is fixedly sleeved on the outer side of the bottom of the rotating shaft 304. The outer walls at both ends of the cam 306 are movably connected to the two movable plates 307 respectively. The cam 306 is rotated by the operation of the second motor 305, and then the two movable plates 307 can be pushed to extend outward, so that the width of the pressing mechanism 3 can be adjusted, so that the pressing plate 301 and the movable plate 307 can stably press the battery stacks of different sizes.

[0037] In order to keep the clamping plate 205 stable during the adjustment process, Figure 2 and Figure 4As shown, a movable groove 202 is provided on the outer wall of one side of the mounting seat 201, and the inner wall of the movable groove 202 is rotatably connected to the adjusting screw rod 203. The two ends of the inner wall of the movable groove 202 are respectively movably connected to the outer wall of one side of the two clamping plates 205. The movable groove 202 can limit the movement of the clamping plates 205, so that the clamping plates 205 remain stable during the adjustment process.

[0038] In order to provide power for the adjustment of the clamping plate 205, as Figure 2 and Figure 4 As shown, the outer wall of one end of the mounting seat 201 is fixedly connected to the first motor 204, and the first motor 204 is connected to the adjusting screw 203 through an output shaft transmission connection. The mounting seat 201 can install and fix the first motor 204. The operation of the first motor 204 causes the adjusting screw 203 to rotate, and the threads at both ends of the adjusting screw 203 are in opposite directions, so that the two clamping plates 205 can move relative to or away from each other on their outer sides, thereby adjusting the distance between the two clamping plates 205.

[0039] In order to keep the movable seat 208 stable during the movement, Figure 2 and Figure 4 As shown, a limiting rod 209 is fixedly installed on the inner wall of the mounting groove 206, and the top and bottom outer walls of the limiting rod 209 are respectively movably connected to the inner walls of the two movable seats 208 at the same end, and the limiting rod 209 is movably inserted into the inner side of the two traction springs 207 at the same end. The limiting rod 209 and the mounting groove 206 can limit the movement of the movable seat 208, so that the movable seat 208 remains stable during the movement.

[0040] In order to provide power for the height adjustment of the pressing plate 301, as Figure 2 As shown, the top of the fixing frame 1 is fixedly connected to the hydraulic cylinder 302, and the output end of the hydraulic cylinder 302 passes through the top inner wall of the fixing frame 1 and is fixedly connected to the top of the pressure plate 301. The fixing frame 1 can install and fix the hydraulic cylinder 302. The operation of the hydraulic cylinder 302 causes the pressure plate 301 to move downward, thereby pressing the battery stack.

[0041] In order to keep the movable plate 307 stable during the movement, Figure 2 and Figure 5As shown, limiting grooves 303 are provided on both sides of the inner wall of the pressure plate 301, and sliders 308 are fixedly installed on both sides of the outer walls of the opposite ends of the two movable plates 307. The two ends of the inner wall of the limiting groove 303 are respectively movably connected to the outer walls of the two sliders 308 on the same side, and a connecting spring 309 is fixedly installed between the two sliders 308 at the same end. The left-view vertical section of the slider 308 and the limiting groove 303 is set to a rectangular structure. The limiting groove 303 can limit the movement of the slider 308, so that the movable plate 307 remains stable during the movement, and the connecting spring 309 can pull and limit the movement of the movable plate 307.

[0042] In order to provide power for the activity of the movable plate 307, as Figure 2-3 and Figure 5 As shown, the inner side of the top of the pressure plate 301 is fixedly connected to the second motor 305, and the second motor 305 is connected to the rotating shaft 304 through an output shaft transmission. The pressure plate 301 can install and fix the second motor 305. The operation of the second motor 305 causes the cam 306 to rotate, thereby pushing the movable plate 307 to extend outward.

[0043] The specific implementation scenario is as follows: when the hydrogen fuel cell stack is being loaded, the single cell is placed at the inner bottom of the fixing frame 1, and then the first motor 204 is operated to rotate the adjusting screw 203, so that the two clamping plates 205 can move relative to or away from each other along the inner wall of the movable groove 202 on the outside thereof, so that the two clamping plates 205 can clamp and fix the two ends of the outer wall of one side of the single cell, and at the same time, the blocking plate 211 can be stretched, and then under the traction of the two traction plates 210 at the same end, The two movable seats 208 at the same end can move relative to each other along the inner wall of the mounting groove 206 on the outer side of the limiting rod 209, thereby extending the traction spring 207. When the blocking plate 211 contacts the outer wall of the single cell away from the mounting seat 201, the blocking plate 211 can stably clamp the outer wall of the single cell away from the mounting seat 201 under the elastic force of the traction spring 207, so that the device can clamp and fix the single cell structure of hydrogen fuel cell stacks of different sizes, thereby allowing the single cell to be The stacking process remains stable, which can facilitate the staff to stack multiple single batteries and avoid offset during the stacking process. Then, the second motor 305 is used to rotate the rotating shaft 304, so that the cam 306 is rotated from a state parallel to the outer wall of one end of the movable plate 307 to a state perpendicular to the outer wall of one end of the movable plate 307, so that the two movable plates 307 can be pushed to extend toward the two ends of the pressure plate 301. At the same time, the limiting groove 303 can limit the movement of the slider 308. The connecting spring 309 is stretched during the movement of the slider 308, and the length of the pressing mechanism 3 can be conveniently adjusted according to the size of the single battery. Then, the hydraulic cylinder 302 is used to move the pressure plate 301 downward, so that the pressure plate 301 and the movable plate 307 can press the stack, thereby improving the efficiency of the hydrogen fuel cell stack. This embodiment specifically solves the problem that the stacking device in the prior art cannot be conveniently adjusted according to the size of the single battery, which makes the stack easily offset during the stacking process.

[0044] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A hydrogen fuel cell stack rapid assembly device, comprising a fixing frame (1), characterized in that: Also includes: A clamping mechanism (2) is arranged at the inner bottom of the fixing frame (1) and is used to clamp and limit the hydrogen fuel cell stack; A pressing mechanism (3) is arranged on the inner top of the fixing frame (1) and is used to press the hydrogen fuel cell stack; The clamping mechanism (2) comprises a mounting seat (201), the mounting seat (201) being fixedly mounted on one side of the bottom inner side of the fixing frame (1), an adjusting screw rod (203) being arranged on an inner wall of one side of the mounting seat (201), a first motor (204) being arranged on one end of the adjusting screw rod (203), and clamping plates (205) being threadedly sleeved on the outer walls of both ends of the adjusting screw rod (203), the two clamping plates (205) being arranged on the inner wall of one side away from the mounting seat (201). The wall is provided with an installation groove (206), and the top and bottom of the inner wall of the installation groove (206) are fixedly installed with a traction spring (207), and the end of the traction spring (207) away from the inner wall of the installation groove (206) is fixedly installed with a movable seat (208), and the outer wall of one end of the two movable seats (208) is rotatably installed with a traction plate (210), and the side of the two traction plates (210) at the same end away from the movable seat (208) is rotatably installed with a blocking plate (211); The pressing mechanism (3) comprises a pressing plate (301) and two movable plates (307); a hydraulic cylinder (302) is arranged on the top of the pressing plate (301); a rotating shaft (304) is rotatably mounted on the top of the inner wall of the pressing plate (301); a second motor (305) is arranged on the top of the rotating shaft (304); a cam (306) is fixedly sleeved on the outer side of the bottom of the rotating shaft (304); and the outer walls at both ends of the cam (306) are movably connected to the two movable plates (307) respectively.

2. The hydrogen fuel cell stack rapid assembly device according to claim 1, characterized in that: A movable groove (202) is provided on an outer wall of one side of the mounting seat (201), an inner wall of the movable groove (202) is rotatably connected to an adjusting screw rod (203), and two ends of the inner wall of the movable groove (202) are movably connected to outer walls of one side of two clamping plates (205) respectively.

3. The hydrogen fuel cell stack rapid assembly device according to claim 1, characterized in that: An outer wall at one end of the mounting seat (201) is fixedly connected to the first motor (204), and the first motor (204) is connected to the adjusting screw rod (203) via an output shaft.

4. The hydrogen fuel cell stack rapid assembly device according to claim 1, characterized in that: A limiting rod (209) is fixedly mounted on the inner wall of the mounting groove (206); the top and bottom outer walls of the limiting rod (209) are movably connected to the inner walls of two movable seats (208) at the same end, respectively; and the limiting rod (209) is movably inserted into the inner sides of two traction springs (207) at the same end.

5. The hydrogen fuel cell stack rapid assembly device according to claim 1, characterized in that: The top of the fixing frame (1) is fixedly connected to the hydraulic cylinder (302), and the output end of the hydraulic cylinder (302) passes through the top inner wall of the fixing frame (1) and is fixedly connected to the top of the pressing plate (301).

6. The hydrogen fuel cell stack rapid assembly device according to claim 1, characterized in that: Limiting grooves (303) are provided on both sides of the inner wall of the pressure plate (301), and sliders (308) are fixedly installed on both sides of the outer walls at opposite ends of the two movable plates (307), and the two ends of the inner wall of the limiting groove (303) are movably connected to the outer walls of the two sliders (308) on the same side.

7. The hydrogen fuel cell stack rapid assembly device according to claim 6, characterized in that: A connecting spring (309) is fixedly installed between the two sliders (308) at the same end, and the slider (308) and the limiting groove (303) are both arranged in a rectangular structure in a left-side vertical section.

8. The hydrogen fuel cell stack rapid assembly device according to claim 1, characterized in that: The inner side of the top of the pressing plate (301) is fixedly connected to the second motor (305), and the second motor (305) is transmission-connected to the rotating shaft (304) via an output shaft.

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