Vehicle-mounted hydrogen fuel battery pack of new energy mobile battery changing vehicle

Abstract

The invention discloses a vehicle-mounted hydrogen fuel battery pack of a new energy mobile battery changing vehicle, and relates to the technical field of battery packs. The problems that an existing hydrogen fuel battery pack is inconvenient to detach, and the detaching and installing speed is affected are solved. A partition plate is arranged in a battery box, two extrusion fixing plates are arranged on the left side and the right side of the partition plate respectively, a plurality of hydrogen fuel cells are arranged between the extrusion fixing plates and the partition plate, and two guide outer cylinders are vertically arranged on the front side and the rear side of the partition plate respectively; two sliding inner rods which are coaxially arranged are inserted into the left end and the right end of each guiding outer barrel correspondingly, the tail ends of the four sliding inner rods are fixedly connected with the two extrusion fixing plates correspondingly, the head ends of the four sliding inner rods are all connected with an extrusion driving assembly, and the four sliding inner rods are driven by the extrusion driving assembly to retract along the inner walls of the two guiding outer barrels; and then the two extrusion fixing plates are driven to extrude the plurality of hydrogen fuel cells on the two sides towards the middle. The device is used for improving the convenience of mounting and fixing the hydrogen fuel cell.

Description

Technical Field

[0001] The present invention relates to the technical field of battery packs, and in particular to a hydrogen fuel cell pack mounted on a new energy mobile battery exchange vehicle. Background Art

[0002] Hydrogen fuel cells are batteries that use the chemical element hydrogen to store energy. The basic principle is the reverse reaction of water electrolysis, supplying hydrogen and oxygen to the anode and cathode respectively. After hydrogen diffuses outward through the anode and reacts with the electrolyte, it releases electrons to reach the cathode through the external load. Fuel cells are environmentally friendly. It is through electrochemical reactions, rather than combustion (gasoline, diesel) or energy storage (battery) - the most typical traditional backup power supply solution. Combustion releases pollutants such as COx, NOx, SOx gases and dust. As mentioned above, fuel cells only produce water and heat. If hydrogen is produced by renewable energy (photovoltaic panels, wind power generation, etc.), the entire cycle is a complete process without harmful emissions.

[0003] In order to facilitate battery replacement for new energy vehicles, hydrogen fuel cell packs will be used. However, some existing hydrogen fuel cell packs usually combine multiple battery packs together when in use. However, when fixing multiple batteries together, bolts and connectors are usually used to fix the multiple batteries together, which makes it inconvenient to disassemble the battery pack at a later stage, thereby affecting the speed of disassembly and installation.

[0004] In view of the above problems, a new energy mobile battery exchange vehicle onboard hydrogen fuel cell pack is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing hydrogen fuel cell group is inconvenient to disassemble, which affects the speed of disassembly and installation, and further provide a hydrogen fuel cell group on board a new energy mobile battery exchange vehicle.

[0006] The technical solution of the present invention is:

[0007] A new energy mobile battery exchange vehicle onboard hydrogen fuel cell group, the hydrogen fuel cell group includes a sealing cover 1 and a battery box 2, the battery box 2 is a rectangular box with an opening at the top, and a sealing cover 1 is provided at the top opening of the battery box 2, the hydrogen fuel cell group also includes a partition plate 7, an extrusion drive assembly, two extrusion fixing plates 10, two guide outer cylinders 8, four sliding inner rods 9 and a plurality of hydrogen fuel cells 6, a partition plate 7 is arranged vertically along the width direction of the box in the middle position of the battery box 2, two extrusion fixing plates 10 arranged in parallel are respectively provided on the left and right sides of the partition plate 7, and each extrusion fixing plate 10 is provided with a side-by-side arrangement between the partition plate 7 Multiple hydrogen fuel cells 6, two vertically arranged guide outer cylinders 8 are respectively provided on the front and rear sides of the dividing plate 7, and two coaxially arranged sliding inner rods 9 are slidably inserted at the left and right ends of each guide outer cylinder 8. The ends of the four sliding inner rods 9 located on the left and right sides of the dividing plate 7 are respectively fixedly connected to the two extrusion fixing plates 10, and the head ends of the four sliding inner rods 9 are connected to the extrusion driving assembly. The four sliding inner rods 9 are driven by the extrusion driving assembly to retract along the inner walls of the two guide outer cylinders 8, thereby driving the two extrusion fixing plates 10 to squeeze the multiple hydrogen fuel cells 6 on the left and right sides of the dividing plate 7 toward the middle, thereby fixing the multiple hydrogen fuel cells 6.

[0008] Furthermore, the extrusion drive assembly includes a rotating shaft 4, two winding wheels 15, four pull ropes 14, four tension springs 13 and four tension spring fixing blocks. The center of the partition plate 7 is provided with a first axial hole arranged along the width direction of the box body and penetrating the front and rear end surfaces of the partition plate 7. The rotating shaft 4 is coaxially and rotatably inserted. The walls of the two guide outer cylinders 8 are provided with second axial holes coaxially arranged with the rotating shaft 4. The front and rear ends of the rotating shaft 4 respectively pass through the two second axial holes and extend to the inside of the two guide outer cylinders 8. Two winding wheels are respectively provided inside the two guide outer cylinders 8. 15, two winding wheels 15 are respectively installed at the front and rear ends of the rotating shaft 4, the winding wheels 15 inside each guide outer cylinder 8 are connected with the corresponding two sliding inner rods 9 through two pull ropes 14, each guide outer cylinder 8 is provided with two tension springs 13 inside, the two tension springs 13 are symmetrically arranged on the left and right sides of the winding wheel 15, the ends of the two tension springs 13 are respectively fixedly connected with the head ends of the corresponding two sliding inner rods 9, the head ends of the two tension springs 13 are respectively fixedly connected with two tension spring fixing blocks, and the two tension spring fixing blocks are both installed on the inner wall of the guide outer cylinder 8.

[0009] Furthermore, the extrusion drive assembly also includes a control box 3, a handle 5, a ratchet 16, a pawl 17, a first torsion spring 18 and a connecting rotating rod 19. The control box 3 is mounted on the front box plate of the battery box 2. A third axial hole coaxially arranged with the rotating shaft 4 is provided on the front box plate of the battery box 2. Fourth axial holes coaxially arranged with the rotating shaft 4 are respectively provided on the front and rear box covers of the control box 3. The front end of the rotating shaft 4 passes through the second axial hole of the front guide outer cylinder 8, the third axial hole of the battery box 2 and the fourth axial hole of the control box 3 in sequence and extends to the front side of the control box 3. A ratchet 16 is provided inside the control box 3. The ratchet 16 is mounted on the rotating shaft 4. A pawl 17 is provided on the side of the ratchet 16. The end of the pawl 17 is meshed with the ratchet 16. The head end of the pawl 17 is mounted on the connecting rotating rod 19. The connecting rotating rod 19 is rotatably connected to the front and rear box end covers of the control box 3. A handle 5 is provided on the outer side of the front side of the control box 3. The handle 5 is mounted on the front end of the connecting rotating rod 19.

[0010] The first torsion spring 18 is sleeved on the rod section of the connecting rotating rod 19 located inside the control box 3, and the two ends of the first torsion spring 18 are fixedly connected to the front end surface of the pawl 17 and the rear surface of the front end cover of the control box 3 respectively.

[0011] Furthermore, the sliding inner rod 9 includes a sliding inner rod body and a limiting block 12. The sliding inner rod body is a rectangular rod-shaped structure. The front end of the sliding inner rod body is connected to the limiting block 12. The limiting block 12 is a rectangular block-shaped structure. The guide outer cylinder 8 is a rectangular cylinder-shaped structure. The limiting block 12 can be slidably installed inside the guide outer cylinder 8. A rectangular through hole matching the sliding inner rod body is opened in the middle of the left and right end covers of the guide outer cylinder 8.

[0012] Furthermore, the hydrogen fuel cell group also includes two upper baffles 11, which are symmetrically arranged on the left and right sides of the dividing plate 7, and the upper baffles 11 are horizontally arranged above the hydrogen fuel cell 6 along the length direction of the box body. The ends of the two upper baffles 11 are fixedly connected to the middle position of the upper part of the two extrusion fixing plates 10.

[0013] Furthermore, the hydrogen fuel cell group also includes a purge assembly, which includes a box body 20, an air jet 21, a connecting hose 22, a blower 23 and a connecting shaft 29. The box body 20 is a rectangular box-shaped structure. A fifth axial hole is opened on the box plates on the left and right sides of the box body 20. The box body 20 is installed on the inner wall of the box plate on one side of the battery box 2. The connecting shaft 29 is rotatably inserted in the fifth axial hole of the box body 20. The air jet 21 is horizontally arranged inside the battery box 2 along the length of the box body. The air jet 21 is located in the middle of the rear side of the hydrogen fuel cell 6. A plurality of air jets are evenly opened on the front side of the air jet 21 from left to right along the length direction of the tube body. One end of the air jet 21 is coaxially connected to the connecting shaft 29, and the other end of the air jet 21 is rotatably connected to the box plate on one side of the battery box 2. An air inlet is opened in the middle of the air jet 21, and a blower 23 is provided in the middle below the air jet 21. The air outlet of the blower 23 is connected to the air inlet of the air jet 21 through the connecting hose 22.

[0014] Furthermore, the hydrogen fuel cell group also includes a motor 24, a rotating plate 25, an extrusion rod 26, a second torsion spring 27 and a fixed baffle 28. The fixed baffle 28 includes a fixed baffle body and a long strip protrusion. The center of the fixed baffle body is provided with a sixth axial hole matching the connecting shaft 29. The fixed baffle body is fixedly sleeved on the connecting shaft 29. The rear side of the fixed baffle body is provided with an integrally formed long strip protrusion. The motor 24 is arranged on the rear side of the connecting shaft 29. The motor 24 shaft is arranged parallel to the connecting shaft 29. One end of the rotating plate 25 is vertically connected to the motor 24 shaft, and the other end of the rotating plate 25 is vertically connected to the extrusion rod 26. The rotating plate 25 and the long strip protrusion are arranged vertically and crosswise. The second torsion spring 27 is located on the outside of the fixed baffle 28. The second torsion spring 27 is sleeved on the connecting shaft 29. The two ends of the second torsion spring 27 are respectively fixedly connected to the outer side surface of the fixed baffle 28 and the inner side surface of the outer box plate of the box body 20.

[0015] Furthermore, a plurality of ventilation holes are provided on the front panel of the battery box 2 .

[0016] Compared with the prior art, the present invention has the following effects:

[0017] 1. The on-board hydrogen fuel cell group of the new energy mobile battery-swap vehicle of the present invention adopts an extrusion drive assembly to control the relative movement of the two sliding inner rods 9, thereby causing the two extrusion fixing plates 10 to move relative to each other, thereby causing the two extrusion fixing plates 10 to squeeze the hydrogen fuel cell 6 toward the middle, thereby achieving the fixation of multiple hydrogen fuel cells 6, facilitating the installation and positioning of the hydrogen fuel cells 6, improving the convenience of installing and fixing the hydrogen fuel cells 6, reducing the difficulty of installing the hydrogen fuel cells 6 to the greatest extent, improving the convenience of installing the hydrogen fuel cells 6, and facilitating the replacement of the hydrogen fuel cells 6 by new energy vehicles.

[0018] 2. The winding wheel 15 inside each guide outer cylinder 8 in the on-board hydrogen fuel cell group of the new energy mobile battery exchange vehicle of the present invention is connected to the corresponding two sliding inner rods 9 through two pull ropes 14, so that the pull rope 14 wound on the winding wheel 15 is no longer wound. Then the limiting block 12 and the sliding inner rod 9 are reset by the elastic force of the tension spring 13, so that the extrusion fixing plate 10 no longer clamps the hydrogen fuel cell 6, and then contacts the fixation of the hydrogen fuel cell 6, so that the hydrogen fuel cell 6 is easily replaced, and the convenience of replacing the hydrogen fuel cell 6 is improved.

[0019] 3. The hydrogen fuel cell group on the new energy mobile battery-swap vehicle of the present invention uses a purge assembly to dissipate heat from the hydrogen fuel cell 6. The jet pipe 21 in the purge assembly can rotate freely, and the jet pipe 21 swings up and down under the action of an external force. When the extrusion rod 26 no longer squeezes the protrusion on the fixed baffle 28, the fixed baffle 28, the connecting shaft 29 and the jet pipe 21 are reset by the torsion of the second torsion spring 27, and the jet pipe 21 is continuously swung, thereby expanding the blowing area, thereby improving the uniformity of heat dissipation and improving the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of a hydrogen fuel cell group on a new energy mobile battery exchange vehicle of the present invention;

[0021] Figure 2 This is an internal schematic diagram of a hydrogen fuel cell group on a new energy mobile battery exchange vehicle of the present invention;

[0022] Figure 3 It is a schematic diagram of the interior of a guide outer cylinder in a hydrogen fuel cell group on a new energy mobile battery exchange vehicle of the present invention;

[0023] Figure 4 This is a schematic diagram of the interior of a control box in a hydrogen fuel cell group on a new energy mobile battery exchange vehicle of the present invention;

[0024] Figure 5 This is an internal schematic diagram of a hydrogen fuel cell group on a new energy mobile battery exchange vehicle of the present invention;

[0025] Figure 6 It is a schematic diagram of the interior of a box in a hydrogen fuel cell group on board a new energy mobile battery-swap vehicle of the present invention.

[0026] In the figure: 1. sealing cover; 2. battery box; 3. control box; 4. rotating shaft; 5. handle; 6. hydrogen fuel cell; 7. dividing plate; 8. guiding outer cylinder; 9. sliding inner rod; 10. squeezing fixed plate; 11. upper baffle; 12. limiting block; 13. tension spring; 14. pull rope; 15. winding wheel; 16. ratchet; 17. pawl; 18. first torsion spring; 19. connecting rotating rod; 20. box body; 21. jet pipe; 22. connecting hose; 23. hair dryer; 24. motor; 25. rotating plate; 26. squeezing rod; 27. second torsion spring; 28. fixed baffle; 29. ​​connecting rotating shaft. DETAILED DESCRIPTION

[0027] Specific implementation method 1: Combination Figures 1 to 6 Description of the present embodiment: a hydrogen fuel cell group mounted on a new energy mobile battery-swap vehicle in the present embodiment, the hydrogen fuel cell group comprises a sealing cover 1 and a battery box 2, the battery box 2 is a rectangular box with an opening at the top, a sealing cover 1 is provided at the top opening of the battery box 2, the hydrogen fuel cell group also comprises a partition plate 7, an extrusion drive assembly, two extrusion fixing plates 10, two guide outer cylinders 8, four sliding inner rods 9 and a plurality of hydrogen fuel cells 6, a partition plate 7 vertically arranged along the width direction of the box is provided in the middle position inside the battery box 2, two extrusion fixing plates 10 arranged in parallel are provided on the left and right sides of the partition plate 7, each extrusion fixing plate 10 is provided with a partition plate 7 between the partition plate 7 A plurality of hydrogen fuel cells 6 are arranged side by side, and two vertically arranged guide outer cylinders 8 are respectively provided on the front and rear sides of the dividing plate 7. Two coaxially arranged sliding inner rods 9 are slidably inserted at the left and right ends of each guide outer cylinder 8. The ends of the four sliding inner rods 9 located on the left and right sides of the dividing plate 7 are respectively fixedly connected to the two extrusion fixing plates 10, and the head ends of the four sliding inner rods 9 are connected to the extrusion driving assembly. Driven by the extrusion driving assembly, the four sliding inner rods 9 are retracted along the inner walls of the two guide outer cylinders 8, thereby driving the two extrusion fixing plates 10 to squeeze the plurality of hydrogen fuel cells 6 on the left and right sides of the dividing plate 7 toward the middle, thereby fixing the plurality of hydrogen fuel cells 6.

[0028] Specific implementation method 2: Combination Figures 1 to 6The present embodiment is described. The extrusion drive assembly of the present embodiment includes a rotating shaft 4, two winding wheels 15, four pull ropes 14, four tension springs 13 and four tension spring fixing blocks. A first axial hole arranged along the width direction of the box body and penetrating the front and rear end surfaces of the dividing plate 7 is opened in the center of the dividing plate 7. The rotating shaft 4 is coaxially and rotatably inserted. A second axial hole coaxially arranged with the rotating shaft 4 is opened on the wall of the two guide outer cylinders 8. The front and rear ends of the rotating shaft 4 pass through the two second axial holes respectively and extend to the inside of the two guide outer cylinders 8. The two guide outer cylinders 8 are respectively provided with two A winding wheel 15 is provided, and the two winding wheels 15 are respectively installed at the front and rear ends of the rotating shaft 4. The winding wheels 15 inside each guide outer cylinder 8 are respectively connected to the corresponding two sliding inner rods 9 through two pull ropes 14. Two tension springs 13 are respectively arranged inside each guide outer cylinder 8. The two tension springs 13 are symmetrically arranged on the left and right sides of the winding wheel 15. The ends of the two tension springs 13 are respectively fixedly connected to the head ends of the corresponding two sliding inner rods 9. The head ends of the two tension springs 13 are respectively fixedly connected to the two tension spring fixing blocks, and the two tension spring fixing blocks are both installed on the inner wall of the guide outer cylinder 8. Other components and connection relationships are the same as those of the specific embodiment 1.

[0029] Specific implementation method three: Combination Figures 1 to 6The present embodiment is described. The extrusion drive assembly of the present embodiment further comprises a control box 3, a handle 5, a ratchet 16, a pawl 17, a first torsion spring 18 and a connecting rotating rod 19. The control box 3 is mounted on the front box plate of the battery box 2. The front box plate of the battery box 2 is provided with a third axial hole coaxially arranged with the rotating shaft 4. The front and rear box covers of the control box 3 are respectively provided with fourth axial holes coaxially arranged with the rotating shaft 4. The front end of the rotating shaft 4 passes through the second axial hole of the front guide outer cylinder 8, the third axial hole of the battery box 2 and the fourth axial hole of the control box 3 in sequence and extends to the front side of the control box 3. The control box A ratchet 16 is provided inside the control box 3, and the ratchet 16 is mounted on the rotating shaft 4. A pawl 17 is provided on the side of the ratchet 16, and the end of the pawl 17 is meshed with the ratchet 16. The head end of the pawl 17 is mounted on a connecting rotating rod 19, and the connecting rotating rod 19 is rotatably connected with the front and rear box end covers of the control box 3. A handle 5 is provided on the outer side of the front side of the control box 3, and the handle 5 is mounted on the front end of the connecting rotating rod 19. A first torsion spring 18 is sleeved on the rod section of the connecting rotating rod 19 located inside the control box 3, and the two ends of the first torsion spring 18 are respectively fixedly connected to the front end surface of the pawl 17 and the rear surface of the front box end cover of the control box 3. In this way, when fixing multiple hydrogen fuel cells 6, multiple hydrogen fuel cells 6 are placed between the dividing plate 7 and the two extrusion fixing plates 10, and then the rotating shaft 4 is rotated, so that the rotating shaft 4 drives the two winding wheels 15 to rotate, and then the two pull ropes 14 are wound on the two winding wheels 15, and then the two limiting blocks 12 are pulled to move relative to each other, so that the two limiting blocks 12 squeeze the two tension springs 13, and at the same time, the two limiting blocks 12 move relative to each other, and the two sliding inner rods 9 are driven to move relative to each other, and then the two extrusion fixing plates 10 move relative to each other, and then the two extrusion fixing plates 10 squeeze the hydrogen fuel cells 6 toward the middle, and then the multiple hydrogen fuel cells 6 are fixed, which is convenient for installing and positioning the hydrogen fuel cells 6, improving the convenience of installing and fixing the hydrogen fuel cells 6, reducing the difficulty of installing the hydrogen fuel cells 6 to the greatest extent, improving the convenience of installing the hydrogen fuel cells 6, and facilitating the replacement of the hydrogen fuel cells 6 by new energy vehicles. Other components and connection relationships are the same as those of the first or second specific embodiments.

[0030] In the present embodiment, when the rotating shaft 4 rotates, the rotating shaft 4 drives the ratchet 16 to rotate, and the ratchet 16 squeezes the pawl 17, and the pawl 17 drives the connecting rotating rod 19 to rotate, and the first torsion spring 18 is deformed. When the ratchet 16 no longer squeezes the pawl 17, the pawl 17 is reset by the torsion of the first torsion spring 18, and the pawl 17 is engaged with the ratchet 16, thereby restricting the rotating shaft 4 so that the rotating shaft 4 can only rotate in one direction, thereby facilitating the fixation of the hydrogen fuel cell 6, preventing loosening, and improving the convenience of fixation.

[0031] Push the handle 5, so that the handle 5 drives the connecting rotating rod 19 to rotate, and then drives the pawl 17 to rotate, causing the first torsion spring 18 to deform, and at the same time, the pawl 17 is disengaged from the connecting rotating rod 19, so that the ratchet 16 is no longer fixed, so that the rotating shaft 4 can rotate in the opposite direction. When the rotating shaft 4 rotates in the opposite direction, the pull rope 14 wound on the winding wheel 15 will no longer be wound, so that the limiting block 12 and the sliding inner rod 9 are reset by the elastic force of the tension spring 13, so that the extrusion fixing plate 10 no longer clamps the hydrogen fuel cell 6, and then contacts the fixation of the hydrogen fuel cell 6, so as to facilitate the replacement of the hydrogen fuel cell 6 and improve the convenience of replacing the hydrogen fuel cell 6.

[0032] Specific implementation method four: Combination Figures 1 to 6 This embodiment is described. The sliding inner rod 9 of this embodiment includes a sliding inner rod body and a limiting block 12. The sliding inner rod body is a rectangular rod-shaped structure. The first end of the sliding inner rod body is connected to the limiting block 12. The limiting block 12 is a rectangular block structure. The guide outer cylinder 8 is a rectangular cylinder structure. The limiting block 12 can be slidably installed inside the guide outer cylinder 8. The middle of the left and right end covers of the guide outer cylinder 8 are provided with rectangular through holes that match the sliding inner rod body. Other components and connection relationships are the same as those of the specific embodiments one, two or three.

[0033] Specific implementation method five: Combination Figures 1 to 6 To explain this embodiment, the hydrogen fuel cell group of this embodiment further includes two upper baffles 11, which are symmetrically arranged on the left and right sides of the dividing plate 7, and are horizontally arranged above the hydrogen fuel cell 6 along the length direction of the box body. The ends of the two upper baffles 11 are respectively fixedly connected to the middle positions of the upper parts of the two extrusion fixing plates 10. In this way, the upper baffles 11 are arranged to block the upper side of the hydrogen fuel cell 6, thereby preventing the hydrogen fuel cell 6 from shaking. Other components and connection relationships are the same as those of the first, second, third or fourth embodiments.

[0034] Specific implementation method six: Combination Figures 1 to 6The present embodiment is described. The hydrogen fuel cell group of the present embodiment further includes a purge assembly, which includes a box body 20, an air jet 21, a connecting hose 22, a blower 23 and a connecting shaft 29. The box body 20 is a rectangular box-shaped structure. A fifth axial hole is provided on the box plates on the left and right sides of the box body 20. The box body 20 is mounted on the inner wall of the box plate on one side of the battery box 2. The connecting shaft 29 is rotatably inserted into the fifth axial hole of the box body 20. The air jet 21 is horizontally arranged inside the battery box 2 along the length of the box body. The air jet 21 is located in the middle of the rear side of the hydrogen fuel cell 6. A plurality of air jets are uniformly provided on the front side of the air jet 21 from left to right along the length direction of the tube body. One end of the air jet 21 is coaxially connected to the connecting shaft 29, and the other end of the air jet 21 is rotatably connected to the box plate on one side of the battery box 2. An air inlet is provided in the middle of the air jet 21, and a blower 23 is provided in the middle below the air jet 21. The air outlet of the blower 23 is connected to the air inlet of the air jet 21 through the connecting hose 22. The other components and connection relationships are the same as those in the first, second, third, fourth or fifth specific embodiments.

[0035] Specific implementation method seven: Combination Figures 1 to 6To illustrate this embodiment, the hydrogen fuel cell group of this embodiment also includes a motor 24, a rotating plate 25, an extrusion rod 26, a second torsion spring 27 and a fixed baffle 28. The fixed baffle 28 includes a fixed baffle body and a long strip protrusion. A sixth axial hole matching the connecting shaft 29 is opened in the center of the fixed baffle body. The fixed baffle body is fixedly sleeved on the connecting shaft 29. An integrally formed long strip protrusion is provided on the rear side of the fixed baffle body. The motor 24 is arranged on the rear side of the connecting shaft 29. The motor 24 shaft is arranged parallel to the connecting shaft 29. One end of the rotating plate 25 is vertically connected to the motor 24 shaft, and the other end of the rotating plate 25 is vertically connected to the extrusion rod 26. The rotating plate 25 and the long strip protrusion are arranged vertically and crosswise. The second torsion spring 27 is located on the outside of the fixed baffle 28. The second torsion spring 27 is sleeved on the connecting shaft 29. The two ends of the second torsion spring 27 are respectively fixedly connected to the outer side surface of the fixed baffle 28 and the inner side surface of the outer box plate of the box body 20. With such arrangement, the motor 24 and the blower 23 are started, and the blower 23 injects gas into the interior of the connecting hose 22, and then the gas is transported to the interior of the jet pipe 21 through the connecting hose 22, and then ejected through the jet pipe 21, thereby cooling the hydrogen fuel cell 6, and the gas is discharged through the ventilation holes on the other side of the battery box 2. When the motor 24 is started, the motor 24 drives the rotating plate 25 and the squeezing rod 26 to rotate, and then when the squeezing rod 26 contacts the protrusion on the fixed baffle 28, the squeezing rod 26 squeezes the protrusion on the fixed baffle 28, and then the fixed baffle 28 and the connecting shaft 29 rotate, and then the second torsion spring 27 is deformed, and then the jet pipe 21 rotates, and when the squeezing rod 26 no longer squeezes the protrusion on the fixed baffle 28, the fixed baffle 28, the connecting shaft 29 and the jet pipe 21 are reset by the torsion of the second torsion spring 27, and then the jet pipe 21 is continuously swung, thereby expanding the blowing area, thereby improving the uniformity of heat dissipation, and improving the heat dissipation effect. The other components and connection relationships are the same as those of the specific implementation modes one, two, three, four, five or six.

[0036] Specific implementation method eight: Combination Figures 1 to 6 To explain this embodiment, a plurality of ventilation holes are provided on the front panel of the battery box 2 of this embodiment. With such arrangement, when cooling the hydrogen fuel cell 6, the gas is discharged through the ventilation holes on the other side of the battery box 2. The other components and connection relationships are the same as those of the specific embodiments 1, 2, 3, 4, 5, 6 or 7.

[0037] How it works

[0038] Combination Figures 1 to 6 The working principle of the hydrogen fuel cell group on board a new energy mobile battery exchange vehicle of the present invention is described as follows:

[0039] A plurality of hydrogen fuel cells 6 are placed between the partition plate 7 and the two extrusion fixing plates 10, and then the rotating shaft 4 is rotated, so that the rotating shaft 4 drives the two winding wheels 15 to rotate, and then the two pull ropes 14 are wound around the two winding wheels 15, and then the two limiting blocks 12 are pulled to move relative to each other, so that the two limiting blocks 12 squeeze the two tension springs 13, and at the same time, the two limiting blocks 12 move relative to each other, so that the two sliding inner rods 9 are driven to move relative to each other, and then the two extrusion fixing plates 10 move relative to each other, so that the two extrusion fixing plates 10 push the hydrogen fuel cell 6 to The middle is squeezed, thereby fixing multiple hydrogen fuel cells 6. When the rotating shaft 4 rotates, the rotating shaft 4 drives the ratchet 16 to rotate, and the ratchet 16 squeezes the pawl 17, and the pawl 17 drives the connecting rotating rod 19 to rotate, and the first torsion spring 18 is deformed. When the ratchet 16 no longer squeezes the pawl 17, the pawl 17 is reset by the torsion of the first torsion spring 18, and the pawl 17 is engaged with the ratchet 16, thereby limiting the rotating shaft 4 so that the rotating shaft 4 can only rotate in one direction.

[0040] Push the handle 5, so that the handle 5 drives the connecting rotating rod 19 to rotate, and then drives the pawl 17 to rotate, so that the first torsion spring 18 is deformed, and at the same time the pawl 17 is disengaged from the connecting rotating rod 19, so that the ratchet 16 is no longer fixed, so that the rotating shaft 4 can rotate in the opposite direction. When the rotating shaft 4 rotates in the opposite direction, the pull rope 14 wound on the winding wheel 15 will no longer be wound, so that the limiting block 12 and the sliding inner rod 9 are reset by the elastic force of the tension spring 13, so that the extrusion fixing plate 10 no longer clamps the hydrogen fuel cell 6.

[0041] The motor 24 and the blower 23 are started, and the blower 23 injects gas into the interior of the connecting hose 22, and then the gas is transported to the interior of the jet pipe 21 through the connecting hose 22, and then ejected through the jet pipe 21, thereby cooling the hydrogen fuel cell 6, and the gas is discharged through the ventilation holes on the other side of the battery box 2. When the motor 24 is started, the motor 24 drives the rotating plate 25 and the squeezing rod 26 to rotate, and then when the squeezing rod 26 contacts the protrusion on the fixed baffle 28, the squeezing rod 26 squeezes the protrusion on the fixed baffle 28, and then the fixed baffle 28 and the connecting shaft 29 rotate, and then the second torsion spring 27 is deformed, and then the jet pipe 21 rotates, and when the squeezing rod 26 no longer squeezes the protrusion on the fixed baffle 28, the fixed baffle 28, the connecting shaft 29 and the jet pipe 21 are reset by the torsion of the second torsion spring 27, and then the jet pipe 21 is continuously swung, thereby expanding the blowing area.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hydrogen fuel cell group mounted on a new energy mobile battery exchange vehicle, the hydrogen fuel cell group comprising a sealing cover (1) and a battery box (2), the battery box (2) being a rectangular box with an opening at the top, and a sealing cover (1) being provided at the top opening of the battery box (2), characterized in that: The hydrogen fuel cell group further comprises a partition plate (7), an extrusion drive assembly, two extrusion fixing plates (10), two guide outer cylinders (8), four sliding inner rods (9) and a plurality of hydrogen fuel cells (6); a partition plate (7) arranged vertically along the width direction of the box body is provided in the middle position inside the battery box (2); two extrusion fixing plates (10) arranged in parallel are provided on the left and right sides of the partition plate (7); a plurality of hydrogen fuel cells (6) arranged side by side are provided between each extrusion fixing plate (10) and the partition plate (7); and two guide outer cylinders (8) arranged vertically are provided on the front and rear sides of the partition plate (7). Two coaxially arranged sliding inner rods (9) are slidably inserted at the left and right ends of each guide outer cylinder (8), the ends of the four sliding inner rods (9) located on the left and right sides of the dividing plate (7) are respectively fixedly connected to the two extrusion fixing plates (10), and the head ends of the four sliding inner rods (9) are connected to the extrusion driving assembly. The four sliding inner rods (9) are driven by the extrusion driving assembly to retract along the inner walls of the two guide outer cylinders (8), thereby driving the two extrusion fixing plates (10) to squeeze the multiple hydrogen fuel cells (6) on the left and right sides of the dividing plate (7) toward the middle, thereby fixing the multiple hydrogen fuel cells (6).

2. The hydrogen fuel cell stack for a new energy mobile battery exchange vehicle according to claim 1 is characterized in that: The extrusion drive assembly comprises a rotating shaft (4), two winding wheels (15), four pull ropes (14), four tension springs (13) and four tension spring fixing blocks. A first shaft hole arranged along the width direction of the box body and penetrating the front and rear end surfaces of the dividing plate (7) is opened at the center of the dividing plate (7). The rotating shaft (4) is coaxially rotatably inserted with the rotating shaft (4). A second shaft hole coaxially arranged with the rotating shaft (4) is opened on the wall of the two guide outer cylinders (8). The front and rear ends of the rotating shaft (4) respectively pass through the two second shaft holes and extend into the inside of the two guide outer cylinders (8). Two winding wheels (15) are respectively arranged inside the two guide outer cylinders (8). Two winding wheels (15) are respectively mounted at the front and rear ends of the rotating shaft (4); the winding wheel (15) inside each guide outer cylinder (8) is connected to the corresponding two sliding inner rods (9) through two pull ropes (14); two tension springs (13) are respectively arranged inside each guide outer cylinder (8); the two tension springs (13) are symmetrically arranged on the left and right sides of the winding wheel (15); the ends of the two tension springs (13) are respectively fixedly connected to the head ends of the corresponding two sliding inner rods (9); the head ends of the two tension springs (13) are respectively fixedly connected to two tension spring fixing blocks; the two tension spring fixing blocks are both mounted on the inner wall of the guide outer cylinder (8).

3. The hydrogen fuel cell stack for a new energy mobile battery exchange vehicle according to claim 2 is characterized in that: The extrusion drive assembly also includes a control box (3), a handle (5), a ratchet (16), a ratchet pawl (17), a first torsion spring (18) and a connecting rotating rod (19). The control box (3) is mounted on the front box plate of the battery box (2). The front box plate of the battery box (2) is provided with a third axial hole coaxially arranged with the rotating shaft (4). The front and rear box covers of the control box (3) are respectively provided with fourth axial holes coaxially arranged with the rotating shaft (4). The front end of the rotating shaft (4) passes through the second axial hole of the front guide outer cylinder (8), the third axial hole of the battery box (2) and the fourth axial hole of the control box (3) in sequence and extends to the front side of the control box (3). The ratchet (16) is provided inside the control box (3). ), a ratchet wheel (16) is mounted on the rotating shaft (4), a ratchet pawl (17) is provided on the side of the ratchet wheel (16), the end of the ratchet pawl (17) is meshed with the ratchet wheel (16), the head end of the ratchet pawl (17) is mounted on a connecting rotating rod (19), the connecting rotating rod (19) is rotatably connected with the front and rear box end covers of the control box (3), a handle (5) is provided on the outer side of the front side of the control box (3), the handle (5) is mounted on the front end of the connecting rotating rod (19), a first torsion spring (18) is sleeved on the rod section of the connecting rotating rod (19) located inside the control box (3), and the two ends of the first torsion spring (18) are respectively fixedly connected to the front end surface of the ratchet pawl (17) and the rear surface of the front box end cover of the control box (3).

4. A hydrogen fuel cell stack for a new energy mobile battery exchange vehicle according to claim 1 or 3, characterized in that: The sliding inner rod (9) comprises a sliding inner rod body and a limiting block (12); the sliding inner rod body is a rectangular rod-shaped structure; the front end of the sliding inner rod body is connected to the limiting block (12); the limiting block (12) is a rectangular block-shaped structure; the guide outer cylinder (8) is a rectangular cylinder-shaped structure; the limiting block (12) is slidably mounted inside the guide outer cylinder (8); and rectangular through holes matching the sliding inner rod body are provided in the middle of the left and right end covers of the guide outer cylinder (8).

5. The hydrogen fuel cell stack for a new energy mobile battery exchange vehicle according to claim 4 is characterized in that: The hydrogen fuel cell group further comprises two upper baffles (11), the two upper baffles (11) are symmetrically arranged on the left and right sides of the dividing plate (7), the upper baffles (11) are horizontally arranged above the hydrogen fuel cell (6) along the length direction of the box body, and the ends of the two upper baffles (11) are respectively fixedly connected to the middle positions of the upper parts of the two extrusion fixing plates (10).

6. The hydrogen fuel cell stack for a new energy mobile battery exchange vehicle according to claim 5, characterized in that: The hydrogen fuel cell group also includes a purge assembly, which includes a box body (20), an air jet pipe (21), a connecting hose (22), a blower (23) and a connecting shaft (29). The box body (20) is a rectangular box-shaped structure. The box plates on the left and right sides of the box body (20) are provided with fifth axial holes. The box body (20) is mounted on the inner wall of the box plate on one side of the battery box (2). The connecting shaft (29) is rotatably inserted into the fifth axial hole of the box body (20). The air jet pipe (21) is horizontally arranged in the battery box (2) along the length of the box body. The jet pipe (21) is located in the middle of the rear side of the hydrogen fuel cell (6), and a plurality of jet ports are uniformly opened in sequence from left to right along the length direction of the pipe body on the front side of the jet pipe (21). One end of the jet pipe (21) is coaxially connected to the connecting shaft (29), and the other end of the jet pipe (21) is rotatably connected to a box plate on one side of the battery box (2). An air inlet is opened in the middle of the jet pipe (21), and a hair dryer (23) is provided in the middle below the jet pipe (21). The air outlet of the hair dryer (23) is connected to the air inlet of the jet pipe (21) through a connecting hose (22).

7. The hydrogen fuel cell stack for a new energy mobile battery exchange vehicle according to claim 6 is characterized in that: The hydrogen fuel cell group further comprises a motor (24), a rotating plate (25), an extrusion rod (26), a second torsion spring (27) and a fixed baffle (28), wherein the fixed baffle (28) comprises a fixed baffle body and a long strip protrusion, wherein a sixth shaft hole matching the connecting shaft (29) is provided at the center of the fixed baffle body, the fixed baffle body is fixedly sleeved on the connecting shaft (29), an integrally formed long strip protrusion is provided at the rear side of the fixed baffle body, the motor (24) is arranged at the rear side of the connecting shaft (29), and the motor (24) ) is arranged in parallel with the connecting rotating shaft (29), one end of the rotating plate (25) is vertically connected to the rotating shaft of the motor (24), the other end of the rotating plate (25) is vertically connected to the extrusion rod (26), the rotating plate (25) and the long strip protrusion are arranged vertically and crosswise, the second torsion spring (27) is located outside the fixed baffle (28), the second torsion spring (27) is sleeved on the connecting rotating shaft (29), and the two ends of the second torsion spring (27) are respectively fixedly connected to the outer side surface of the fixed baffle (28) and the inner side surface of the outer box plate of the box body (20).

8. The hydrogen fuel cell stack for a new energy mobile battery exchange vehicle according to claim 7, characterized in that: A plurality of ventilation holes are provided on the front box plate of the battery box (2).

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