A graphene magnesium-based solid-state hydrogen storage energy group replacement device

Abstract

The present invention relates to the field of supporting equipment for new energy battery packs, and in particular to a graphene magnesium-based solid-state hydrogen storage energy pack replacement equipment, including a solid-state energy hydrogen storage replacement base station and a solid-state hydrogen storage battery pack used in conjunction with the solid-state energy hydrogen storage replacement base station, wherein the solid-state hydrogen storage battery pack is movably connected to the solid-state energy hydrogen storage replacement base station, and the solid-state hydrogen storage battery pack is replaced by the solid-state energy hydrogen storage replacement base station through the connection. By improving the structure of the battery pack and the supporting equipment of the battery replacement station, the efficiency of the solid-state hydrogen storage battery pack replacement process is improved, and the sealing during the replacement process is improved, and the car owner can perform the replacement operation by himself.

Description

Technical Field

[0001] The present invention relates to the field of new energy battery pack supporting equipment, and in particular to a graphene magnesium-based solid-state hydrogen storage energy pack replacement device. Background Art

[0002] Among the three major links of hydrogen production, storage and transportation, and application, storage and transportation is the key to efficient use of hydrogen energy, and is also an important link that affects the large-scale development of hydrogen energy. At present, the main hydrogen storage and transportation methods are divided into four types: high-pressure gaseous hydrogen storage, low-temperature liquid hydrogen storage, solid material hydrogen storage, and organic liquid hydrogen storage. In China, gaseous hydrogen storage accounts for the vast majority, and other hydrogen storage technologies such as low-temperature liquid and solid are only used in small quantities, accounting for less than 0.1% of the total.

[0003] Solid-state hydrogen storage is the storage of hydrogen in solid materials. The mainstream methods are physical adsorption and chemical hydride hydrogen storage. The advantages are low hydrogen storage pressure, high volume hydrogen storage density, and the ability to purify hydrogen; the disadvantages are low mass hydrogen storage density and the need for heat exchange during hydrogen charging and discharging.

[0004] Applying solid-state hydrogen storage technology to new energy battery packs can bring better utilization efficiency to the battery packs. At the same time, because of the use of solid-state hydrogen storage, its use, transportation and replacement processes are safer and will not cause safety hazards to vehicles and users.

[0005] When solid-state hydrogen energy batteries begin to be widely used, the infrastructure must be equipped as soon as possible to provide strong support for their rapid development.

[0006] The invention patent of Chinese patent application No. 202310001245.5 discloses a method for operating a battery replacement station with a total amount of equipment battery packs, wherein the battery replacement station is designed to prepare equipment battery packs for replacing with equipment battery packs in technical equipment and replace these equipment battery packs according to replacement requests. The method has the following steps: providing a usage mode for technical equipment and battery replacement stations, which describes the usage and / or operation mode of relevant technical equipment or battery replacement stations; simulating multiple replacement scenarios, wherein battery replacement using prepared battery packs in technical equipment that may make replacement requests at relevant predicted replacement time points is simulated, the predicted health state of each equipment battery pack is determined according to the usage mode, and the optimized replacement scenario is determined according to the evaluation criteria at each predicted replacement time point; when there is a replacement request, the prepared equipment battery pack is allocated to the requesting device according to the optimized replacement scenario. The technical solution proposed in the above invention is mainly aimed at performing health checks on the battery pack during the replacement process. The efficiency and sealing of the solid-state hydrogen storage battery pack during the replacement process are not improved. At the same time, due to the need to adapt to different types of vehicles, the present invention aims to propose a convenient replacement device that allows car owners to replace battery packs by themselves without the assistance of professionals and professional tools. Summary of the invention

[0007] Therefore, in response to the above problems, the present invention proposes a graphene magnesium-based solid-state hydrogen storage energy pack replacement device, which improves the efficiency of the solid-state hydrogen storage battery pack replacement process and the sealing during the replacement process by improving the structure of the battery pack and the supporting equipment of the battery swap station, and enables the car owner to perform the replacement operation by himself.

[0008] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a graphene magnesium-based solid-state hydrogen storage energy group replacement device, comprising a solid-state energy hydrogen storage replacement base station and a solid-state hydrogen storage battery group used in conjunction with the solid-state energy hydrogen storage replacement base station, wherein the solid-state hydrogen storage battery group is movably connected to the solid-state energy hydrogen storage replacement base station, and the solid-state hydrogen storage battery group is connected through the solid-state energy hydrogen storage replacement base station to replace the battery group;

[0009] The solid-state hydrogen storage battery pack comprises a cylindrical shell for storing solid-state hydrogen storage materials, the shell is provided with an inlet and outlet valve and an insertion port, a solid hydrogen storage cavity is provided in the shell, and the inlet and outlet valve and the solid hydrogen storage cavity are interconnected;

[0010] The solid-state energy hydrogen storage replacement base station includes a fixed base, a lifting workbench arranged on the fixed base, and a battery pack replacement device arranged on the surface of the lifting workbench. The lifting workbench is driven by a lifting motor to lift up and down in the vertical direction on the fixed base. The battery pack replacement device includes a lifting support seat and lifting rods arranged at the four corners of the lifting workbench. Each of the lifting rods is driven to rotate by a rotating motor. Each of the lifting rods is perpendicular to the horizontal plane. Lifting threaded holes are arranged at the four corners of the lifting support seat. The lifting threaded holes cooperate with the lifting rods to make the lifting support seat lift up and down in the vertical direction. The lifting support seat is provided with a plurality of storage slots for placing the solid-state hydrogen storage battery packs.

[0011] The solid-state energy hydrogen storage replacement base station is also provided with a replacement base.

[0012] Furthermore, a solar energy absorption panel is provided on the solid energy hydrogen storage replacement base station, and the projection surface of the solar energy absorption panel on the horizontal plane completely covers the fixed base and the replacement base, and extends 50cm-100cm in all directions.

[0013] Furthermore, a protection groove is provided on the shell, and the protection groove surrounds the air inlet and outlet valves and the plug interface, and a sealing structure is provided in the protection groove.

[0014] Furthermore, the sealing structure includes a first annular groove and a second annular groove arranged on the inner wall of the protective groove, the first annular groove is embedded with a first sealing rubber ring, the second annular groove is embedded with a second sealing rubber ring, the first annular groove and the second annular groove are parallel to each other, the first annular groove is arranged above the second annular groove, the first sealing rubber ring is a hollow structure, and the second sealing rubber ring is a solid structure.

[0015] Furthermore, the lifting support seat is always parallel to the horizontal plane, and a telescopic protrusion is arranged on the lifting support seat in the lifting threaded hole, a first thread is arranged on the telescopic protrusion, and a second thread is arranged on the peripheral side surface of the lifting rod, and the telescopic protrusion is driven by a motor to extend outward or retract inward along the radial direction of the lifting threaded hole.

[0016] Furthermore, the telescopic protrusion in the radial direction occupies one half of the outer circumferential side area of ​​the lifting threaded hole. When the telescopic protrusion extends outward, the first thread and the second thread engage with each other. When the telescopic protrusion retracts inward, the end face of the telescopic protrusion is lower than the inner circumferential side of the lifting threaded hole.

[0017] Furthermore, a first pushing mechanism is provided on the lifting support seat, and a second pushing mechanism is provided on the lifting workbench, and the first pushing mechanism and the second pushing mechanism cooperate with each other to push the solid-state hydrogen storage battery pack out of the storage tank.

[0018] Furthermore, the first pushing mechanism includes a connecting through hole arranged on the lower bottom surface of the lifting support seat and an elastic pushing block arranged in the connecting through hole, and the second pushing mechanism includes a telescopic pushing rod arranged on the table surface of the lifting workbench and a ball arranged on the top of the telescopic pushing rod, and the telescopic pushing rod is passively retracted and extended under the action of external force by a high-strength spring. When the lifting support seat falls toward the lifting workbench, the telescopic pushing rod enters the connecting through hole and hits the elastic pushing block.

[0019] Furthermore, the connecting through hole includes a first connecting through hole and a second connecting through hole which are interconnected, the first connecting through hole and the storage groove are interconnected, the elastic pushing block is arranged in the first connecting through hole and is connected to the inner side wall of the second connecting through hole through a high-strength spring, and the elastic pushing block is provided with an inclined pushing surface.

[0020] Furthermore, an elastic buffer pad is arranged on the free end of the elastic pushing block.

[0021] By adopting the above technical solution, the beneficial effects of the present invention are:

[0022] 1. Compared with the existing new energy battery replacement infrastructure, the advantages of the present invention are: the present invention is mainly adapted to graphene magnesium-based solid-state hydrogen storage energy batteries, rather than conventional lithium iron phosphate batteries or ternary lithium batteries. During use, the battery pack proposed by the present invention can be flexibly replaced to achieve the same efficiency as refueling a gasoline truck. The biggest advantage is that the driver can complete the battery replacement work by himself, which improves the battery replacement efficiency and reduces the loss of manpower and material resources. At the same time, compared with conventional lithium batteries, solid-state hydrogen energy batteries can bring more efficient charging and discharging efficiency, and can store more electricity per unit volume. At the same time, due to the use of solid-state hydrogen storage technology, hydrogen is stored in a solid form. During use, the hydrogen in the solid-state hydrogen storage material is released through chemical reactions to provide energy for the vehicle, avoiding the problems of combustion and explosion that may exist in conventional batteries, and also avoiding the explosion problems that may be caused during the use of hydrogen. Specifically: the solid-state hydrogen storage battery pack in the present invention is provided with an inlet and outlet valve Door and plug interface, wherein the air inlet and outlet valves and the plug interface are protected by a protective groove, thereby ensuring that the air inlet and outlet valves can be safe when working in conjunction with the vehicle or in conjunction with the solid-state energy hydrogen storage replacement base station; at the same time, the solid-state energy hydrogen storage replacement base station in the present invention is used to store solid-state hydrogen storage battery packs, and its structural improvement lies in: by providing a lifting workbench, the lifting workbench can be lifted up and down in the vertical direction, ensuring that the height of the lifting support seat above it can be fine-tuned with the lifting and lowering of the lifting workbench, the purpose is to enable the solid-state hydrogen storage battery pack stored on the lifting support seat to adapt to the height of the vehicle, so that the driver can take out or put in the solid-state hydrogen storage battery pack from the lifting support seat at a suitable height, and if the height is not suitable, it is very inconvenient for the long cylindrical battery pack to be taken and placed, and the driver can flexibly adjust the height of the lifting workbench as needed through the integrated controller, and by providing a replacement base, it is for the purpose of inflating the solid-state hydrogen storage battery pack.

[0023] 2. In the present invention, a solar energy absorption panel is arranged on the solid-state energy hydrogen storage replacement base station. The solar energy absorption panel absorbs solar energy and then converts it into electrical energy to provide basic electricity for the solid-state energy hydrogen storage replacement base station, such as the power supply of the central control computer and the power supply of various motors. It can achieve rational utilization of resources while reducing energy consumption, which is more environmentally friendly. At the same time, the solar energy absorption panel is arranged with an area extending 50-100cm in all directions on the horizontal plane projection, which ensures that it can also act as a rain shield to protect the solid-state energy hydrogen storage replacement base station on rainy days.

[0024] 3. By providing a sealing structure on the protective groove, the sealing structure can ensure that the port of the battery pack can be closely matched with the matching port during use or during inflation.

[0025] 4. The lifting support seat and the lifting workbench in the present invention cooperate in such a way that the lifting rod set on the lifting workbench engages with the lifting threaded hole on the lifting support seat, and then the lifting support seat is driven to rise by the rotation of the lifting rod. After the battery pack is replaced, the lifting support seat rises again under the drive of the lifting rod until it cooperates with the replacement base to replace the empty battery pack.

[0026] 5. The present invention reduces energy consumption by improving the structure of the equipment. Specifically, the structure of the lifting rod and the structure of the lifting threaded hole are improved, and the cooperation of the two can ensure the uniform rise and rapid descent of the lifting support seat, wherein a telescopic protrusion is arranged in the lifting threaded hole, and a first thread is arranged on the telescopic protrusion. When the lifting support seat needs to be driven to rise by the lifting rod, the telescopic protrusion extends outward to make the first thread and the second thread mesh with each other. At this time, the lifting support seat rises with the rotation of the lifting rod under the action of the thread meshing. When the lifting support seat cooperates with the replacement base to replace the empty battery pack and needs to be lowered to the replacement position, the lifting rod is reversely rotated to make the lifting support seat sink. When the lifting support seat is 8-10 cm close to the top surface of the lifting workbench, the lifting rod stops driving, and the lifting support seat falls naturally by its own gravity. At this time, the equipment has no driving force to drive it, and the lifting support seat adopts a natural falling method, which saves energy on the one hand, and can The first pushing mechanism and the second pushing mechanism will be connected to each other during the collision, and the first pushing mechanism and the second pushing mechanism will be connected to each other. Specifically, the top end of the telescopic pushing rod will hit the elastic pushing block in the connecting through hole, and the inclined pushing surface on the elastic pushing block will provide a horizontal force for the elastic pushing block under the impact of the telescopic pushing rod, and the force is directed to the storage slot, that is, the elastic pushing block will push the inflated battery pack in the storage slot outward for a short distance, so that the driver can take out the battery pack for use. At the same time, this pushing process can be self-recovering. The self-recovery is reflected in that high-strength springs are provided on the telescopic pushing rod and the elastic pushing block. Under the action of the high-strength spring, the lifting support seat will only work when it naturally falls and contacts the lifting workbench, and then it will immediately return to its initial state.

[0027] 6. The present invention provides an elastic buffer pad at the free end of the elastic pushing block, thereby ensuring that when the elastic pushing block contacts the battery pack and pushes it outward, a buffer is provided for the impact between the two. On the one hand, the battery pack is protected, and on the other hand, the service life of the elastic pushing block is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0029] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention (without the solid-state hydrogen storage battery pack);

[0030] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention from another perspective (without the solid-state hydrogen storage battery pack);

[0031] Figure 3 It is a schematic diagram of the front structure of the present invention;

[0032] Figure 4 It is a schematic diagram of the side structure of the present invention;

[0033] Figure 5 It is a schematic diagram of the top view of the lifting support seat of the present invention (with an enlarged view of the lifting threaded hole structure);

[0034] Figure 6 It is a cross-sectional view of the matching structure of the lifting rod and the lifting threaded hole of the present invention;

[0035] Figure 7 This is a diagram showing the coordination structure of the first pushing mechanism and the second pushing mechanism of the present invention;

[0036] Figure 8 This is a schematic diagram of the internal structure of the solid-state hydrogen storage battery pack of the present invention;

[0037] Fig. 9 It is a cross-sectional view of the internal structure of the sealing structure of the present invention. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] See also Figure 1-Figure 9 The present invention provides a graphene magnesium-based solid-state hydrogen storage energy group replacement device, including a solid-state energy hydrogen storage replacement base station and a solid-state hydrogen storage battery group used in conjunction with the solid-state energy hydrogen storage replacement base station, wherein the solid-state hydrogen storage battery group is movably connected to the solid-state energy hydrogen storage replacement base station, and the solid-state hydrogen storage battery group is connected through the solid-state energy hydrogen storage replacement base station to replace the battery group;

[0040] The solid-state hydrogen storage battery pack includes a cylindrical shell 9 for storing solid-state hydrogen storage materials, the shell 9 is provided with an inlet and outlet valve 95 and a plug port 94, a solid hydrogen storage cavity 93 is provided in the shell 9, the inlet and outlet valve 95 and the solid hydrogen storage cavity 93 are interconnected, an electric heating device 92 is provided on the outer circumferential side wall of the solid hydrogen storage cavity 93, the electric heating device is electrically connected to the plug port 94 for heating the solid hydrogen storage cavity 93 to release energy after power is turned on, the electric heating device 92 is a known structure, and the electric ceramic heating technology is adopted in this embodiment to improve the heating speed and heating efficiency; the shell 9 is provided with a protective groove 91, the protective groove 91 surrounds the air inlet and outlet valves 95 and the plug port 94. A sealing structure is arranged in the protective groove 91, and the sealing structure includes a first annular groove 911 and a second annular groove 913 arranged on the inner side wall of the protective groove. A first sealing rubber ring 912 is embedded in the first annular groove 911, and a second sealing rubber ring 914 is embedded in the second annular groove 913. The first annular groove 911 and the second annular groove 913 are parallel to each other. The first annular groove 911 is arranged above the second annular groove 913. The first sealing rubber ring 912 is a hollow structure, and the second sealing rubber ring 914 is a solid structure.

[0041] The solid-state energy hydrogen storage replacement base station includes a fixed base 1, a lifting platform 11 arranged on the fixed base 1, and a battery pack replacement device arranged on the surface of the lifting platform 11. The lifting platform 11 is driven by a lifting motor to lift up and down in the vertical direction on the fixed base 1, wherein the lifting technology is a well-known technology. The purpose of lifting the lifting platform 11 up and down is to adjust its own height to adapt to different vehicle heights and facilitate battery pack replacement. The battery pack replacement device includes a lifting support seat 2 and lifting rods 3 arranged at the four corners of the lifting platform 11. Each of the lifting rods 3 is driven by a rotating motor to rotate, and each of the lifting rods 3 is perpendicular to the horizontal plane. The four corners of the lifting support seat 2 are provided with lifting threaded holes 22, and the lifting threaded holes 22 cooperate with the lifting rods 3 to make the lifting support seat 2 lift up and down in the vertical direction. The lifting support seat 2 is provided with 3 storage slots 21 for placing the solid-state hydrogen storage battery pack. The number of storage slots 21 is set as needed during actual use, and the present invention does not limit the number.

[0042] The solid-state energy hydrogen storage replacement base station is also provided with a replacement base 4, and the replacement base 4 is provided with a replacement slot 41. The replacement slot 41 is integrated with equipment for automatic replacement and hydrogen replenishment of the solid-state hydrogen storage battery pack, which will not be elaborated here.

[0043] The solid-state energy hydrogen storage replacement base station is provided with a solar energy absorption plate 5, and the projection surface of the solar energy absorption plate 5 on the horizontal plane completely covers the fixed base 1 and the replacement base 4, and extends 100 cm in all directions;

[0044] The lifting support seat 2 is always parallel to the horizontal plane. A telescopic protrusion 221 is arranged in the lifting threaded hole 22 on the lifting support seat 2. A first thread 222 is arranged on the telescopic protrusion 221. A second thread 31 is arranged on the peripheral side of the lifting rod 3. The telescopic protrusion 221 is extended outward or retracted inward along the radial direction of the lifting threaded hole 22 by a motor drive. The second thread 31 is a conventional design. Figure 1-Figure 4 Although not shown in detail, the second threaded hole 31 passes through the lifting rod 3 in the axial direction;

[0045] In the radial direction, the telescopic protrusion 221 occupies one half of the outer circumferential side area of ​​the lifting threaded hole 22. When the telescopic protrusion 221 extends outward, the first thread 222 and the second thread 31 engage with each other. When the telescopic protrusion 221 retracts inward, the end face of the telescopic protrusion 221 is lower than the inner circumferential side face of the lifting threaded hole 22, and the difference between the two is 1 mm.

[0046] The lifting support seat 2 is provided with a first pushing mechanism, and the lifting workbench 11 is provided with a second pushing mechanism. The first pushing mechanism and the second pushing mechanism cooperate with each other to push the solid-state hydrogen storage battery pack out of the storage tank 21. The first pushing mechanism includes a connecting through hole 8 provided on the lower bottom surface of the lifting support seat 2 and an elastic pushing block 811 provided in the connecting through hole 8. The second pushing mechanism includes a telescopic pushing rod 7 provided on the table surface of the lifting workbench 11 and a ball 71 provided on the top of the telescopic pushing rod 7. The telescopic pushing rod 7 is passively retracted under the action of external force by a high-strength spring A. When the lifting support seat 2 falls toward the lifting workbench 11, the telescopic pushing rod 7 enters the connecting hole 8. The elastic pushing block 811 is arranged in the first connecting through hole 81 and is connected to the inner wall of the second connecting through hole 82 through a high-strength spring A, wherein the high-strength spring A is respectively arranged at the left and right ends, and a channel for the telescopic pushing rod 7 to enter and exit is reserved in the two high-strength springs A, and an inclined pushing surface 812 is arranged on the elastic pushing block 811, and an elastic buffer pad is arranged on the free end of the elastic pushing block 811, wherein the elastic buffer pad is a rubber pad, which is directly coated on the free end of the elastic pushing block 811 by hot-melt technology.

[0047] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A graphene magnesium-based solid-state hydrogen storage energy group replacement device, comprising a solid-state energy hydrogen storage replacement base station and a solid-state hydrogen storage battery group used in conjunction with the base station, characterized in that: The solid-state hydrogen storage battery pack is movably connected to the solid-state energy hydrogen storage replacement base station, and the solid-state hydrogen storage battery pack is replaced by the solid-state energy hydrogen storage replacement base station; The solid-state hydrogen storage battery pack comprises a cylindrical shell for storing solid-state hydrogen storage materials, the shell is provided with an inlet and outlet valve and an insertion port, a solid hydrogen storage cavity is provided in the shell, and the inlet and outlet valve and the solid hydrogen storage cavity are interconnected; The solid-state energy hydrogen storage replacement base station includes a fixed base, a lifting workbench arranged on the fixed base, and a battery pack replacement device arranged on the surface of the lifting workbench. The lifting workbench is driven by a lifting motor to lift up and down in the vertical direction on the fixed base. The battery pack replacement device includes a lifting support seat and lifting rods arranged at the four corners of the lifting workbench. Each of the lifting rods is driven to rotate by a rotating motor. Each of the lifting rods is perpendicular to the horizontal plane. Lifting threaded holes are arranged at the four corners of the lifting support seat. The lifting threaded holes cooperate with the lifting rods to make the lifting support seat lift up and down in the vertical direction. The lifting support seat is provided with a plurality of storage slots for placing the solid-state hydrogen storage battery packs. The solid-state energy hydrogen storage replacement base station is also provided with a replacement base; the solid-state energy hydrogen storage replacement base station is provided with a solar energy absorption panel, the projection surface of the solar energy absorption panel on the horizontal plane completely covers the fixed base and the replacement base, and extends 50cm-100cm in all directions; a protective groove is provided on the shell, the protective groove surrounds the inlet and outlet valves and the plug interface, and a sealing structure is provided in the protective groove; the sealing structure includes a first annular groove and a second annular groove provided on the inner side wall of the protective groove, a first sealing rubber ring is embedded in the first annular groove, a second sealing rubber ring is embedded in the second annular groove, the first annular groove and the second annular groove are parallel to each other, the first annular groove is provided above the second annular groove, the first sealing rubber ring is a hollow structure, and the second sealing rubber ring is a solid structure; The lifting support seat is always parallel to the horizontal plane, a telescopic protrusion is arranged on the lifting support seat in the lifting threaded hole, a first thread is arranged on the telescopic protrusion, a second thread is arranged on the peripheral side surface of the lifting rod, and the telescopic protrusion is driven by a motor to extend outward or retract inward along the radial direction of the lifting threaded hole; In the radial direction, the telescopic protrusion occupies one-half of the outer circumferential side area of ​​the lifting threaded hole. When the telescopic protrusion extends outward, the first thread and the second thread mesh with each other. At this time, the lifting support seat rises along with the rotation of the lifting rod under the action of the thread meshing. When the lifting support seat cooperates with the replacement base to replace the empty battery pack and needs to be lowered to the replacement position, the lifting rod is reversely rotated to make the lifting support seat sink, and the lifting rod stops driving when the lifting support seat is 8-10 cm close to the top surface of the lifting workbench. When the telescopic protrusion retracts inward, the end face of the telescopic protrusion is lower than the inner circumferential side of the lifting threaded hole. The lifting support seat is provided with a first pushing mechanism, and the lifting workbench is provided with a second pushing mechanism. The lifting support seat generates gravitational potential energy during the natural falling process, so that the first pushing mechanism on the lifting support seat hits the second pushing mechanism on the lifting workbench with a certain force, thereby ejecting the solid-state hydrogen storage battery pack from the storage tank; The first pushing mechanism comprises a connecting through hole arranged on the lower bottom surface of the lifting support seat and an elastic pushing block arranged in the connecting through hole, and the second pushing mechanism comprises a telescopic pushing rod arranged on the table surface of the lifting workbench and a ball arranged on the top of the telescopic pushing rod, and the telescopic pushing rod is passively extended and retracted under the action of external force by a high-strength spring, and when the lifting support seat falls toward the lifting workbench, the telescopic pushing rod enters the connecting through hole and hits the elastic pushing block; The connecting through hole includes a first connecting through hole and a second connecting through hole which are mutually interpenetrating, the first connecting through hole and the storage slot being mutually interpenetrating, the elastic pushing block being arranged in the first connecting through hole and being connected to the inner side wall of the second connecting through hole by a high-strength spring, the elastic pushing block being provided with an inclined pushing surface, the inclined pushing surface on the elastic pushing block will provide a horizontal force for the elastic pushing block under the impact of the telescopic pushing rod, and the force is directed to the storage slot, that is, the elastic pushing block will push the battery pack in the storage slot that has been inflated outward for a short distance, so that the driver can take out the battery pack for use, and at the same time, this pushing process can be self-recovering, and the self-recovery is reflected in that the high-strength spring is arranged on the telescopic pushing rod and the elastic pushing block, and under the action of the high-strength spring, the lifting support seat will only work at the moment when it naturally falls and contacts the lifting workbench, and then it will immediately restore to the initial state, and an elastic buffer pad is arranged on the free end of the elastic pushing block.

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