Oil-cooled solid-state hydrogen storage thermal management system and control method thereof

Abstract

The present invention relates to the field of hydrogen storage technology, specifically to an oil-cooled solid-state hydrogen storage thermal management system and a control method thereof. The solid-state hydrogen storage module in the oil-cooled solid-state hydrogen storage thermal management system includes a mechanical fixing component, a hydraulic oil storage chamber, a flexible deformable liner and a solid-state hydrogen storage bottle; a hydraulic oil storage chamber is provided in the mechanical fixing component, a flexible deformable liner is provided inside the hydraulic oil storage chamber, and the solid-state hydrogen storage bottle is provided in the flexible deformable liner; the flexible deformable liner is connected to a power device. The present invention controls the contraction and expansion of the flexible deformable liner through a power device to solve the problem of quick replacement of the hydrogen storage bottle; the expanded flexible deformable liner can tightly wrap the solid-state hydrogen storage bottle, avoiding the problem of fitting gap caused by processing and thus seriously affecting heat transfer. The control method of the oil-cooled solid-state hydrogen storage thermal management system sets multiple thresholds to enable the control system to enter different circulation loops, and fully utilizes the preheating of the fuel cell system to solve the solid-state hydrogen storage heat demand, thereby improving the system sorting efficiency.

Description

Technical Field

[0001] The present invention relates to the field of hydrogen storage technology, and in particular to an oil-cooled solid-state hydrogen storage thermal management system and a control method thereof. Background Art

[0002] Solid-state hydrogen storage is currently a very important hydrogen storage and transportation technology route. During use, solid-state hydrogen storage requires thermal management control technology for hydrogen absorption cooling and hydrogen desorption heating. Currently, hydrogen storage alloy reaction vessels mainly consist of several parts, such as a metal container tank, hydrogen storage alloy material, air guide tube, and heat exchange structure. Due to the poor thermodynamic properties of hydrogen storage alloys, as the alloy material absorbs and desorbs hydrogen in the container, a large amount of heat is released and absorbed. Due to the repeated absorption and desorption of hydrogen, the hydrogen storage alloy will also expand and contract in volume, and the alloy material will also experience a certain degree of powdering. Its thermal conductivity coefficient will also decrease, resulting in a decrease in the utilization rate of the hydrogen storage alloy material. Therefore, how to achieve efficient heat exchange in the thermal management system has become a major issue. In actual operation, it is impossible to quickly replace the solid-state hydrogen storage bottle, and the structure that fixes the solid-state hydrogen storage bottle will have a fit gap due to processing, which seriously affects heat transfer.

[0003] For example, a Chinese utility model patent with authorization publication number CN 217933873 U discloses an integrated power supply system for a solid-state hydrogen storage device and a fuel cell. The system includes a fuel cell device, a hydrogen reaction heater, a solid-state hydrogen storage device, and an automatic temperature control device. The solid-state hydrogen storage device includes a heat exchanger and a hydrogen storage tank, while the hydrogen reaction heater includes a chamber and a hydrogen reactor. A temperature monitor is installed on the outside of the hydrogen storage tank. The hydrogen storage tank is connected to the fuel cell device and the air inlet of the chamber. A gas flow control valve is installed at the chamber air inlet, and a pressure monitor is installed on the hydrogen supply line. The heat exchanger is connected to the chamber via cold and hot thermal oil pipelines. The control valve, monitor, and oil pump are all connected to the automatic temperature control device. This solution can provide heat energy for the dehydrogenation process of the solid-state hydrogen storage material within the solid-state hydrogen storage device. However, the heat exchanger and hydrogen storage tank used in this solution are used in conjunction with each other, and a gap between them is created due to processing, which in turn affects heat transfer.

[0004] Therefore, the present invention proposes an oil-cooled solid-state hydrogen storage thermal management system and a control method thereof, both of which aim to solve this problem. Summary of the Invention

[0005] In order to avoid the above-mentioned problems existing in the prior art, an object of the present invention is to provide an oil-cooled solid-state hydrogen storage thermal management system and a control method thereof.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an oil-cooled solid-state hydrogen storage thermal management system, comprising a solid-state hydrogen storage module, wherein the solid-state hydrogen storage module comprises a mechanical fixing component, a hydraulic oil storage chamber, a flexible deformable liner and a solid-state hydrogen storage bottle; a hydraulic oil storage chamber is provided in the mechanical fixing component, a flexible deformable liner is provided inside the hydraulic oil storage chamber, and the solid-state hydrogen storage bottle is provided in the flexible deformable liner; the flexible deformable liner is connected to a power device.

[0007] The present invention is further configured as follows: the flexible deformable inner liner is an independent oil chamber, and at least one flexible deformable inner liner is provided in the hydraulic oil storage chamber.

[0008] The present invention is further configured such that: the power device is an electric hydraulic cylinder, when the electric hydraulic cylinder is pressurized, the flexible deformable inner liner expands, and when the electric hydraulic cylinder is depressurized, the flexible deformable inner liner contracts.

[0009] The present invention is further configured as follows: the oil-cooled solid-state hydrogen storage thermal management system also includes a water circulation system, which includes a fuel cell system, a water pump and a plate heat exchanger; the fuel cell circulation system is connected to the first port of the three-way valve body, the second port of the three-way valve body is connected to the input port of the plate heat exchanger, a water pump is provided between the plate heat exchanger and the three-way valve body, and the output port of the plate heat exchanger is connected to the fuel cell system to form a circulation loop.

[0010] The present invention is further configured as follows: the oil-cooled solid-state hydrogen storage thermal management system also includes an oil circulation system, and the oil circulation system includes a hydraulic oil tank and an oil pump; the output port of the plate heat exchanger is connected to the hydraulic oil tank, and the hydraulic oil tank is connected to the hydraulic oil storage chamber in the solid-state hydrogen storage module. An oil pump is provided between the hydraulic oil tank and the solid-state hydrogen storage module, and the hydraulic oil storage chamber is connected to the input port of the plate heat exchanger to form a circulation loop.

[0011] The present invention is further configured as follows: the oil-cooled solid-state hydrogen storage thermal management system also includes a radiator and an expansion water tank; the third port of the three-way valve body is connected to the input port of the radiator, and the output port of the radiator is connected to the expansion water tank; the output port of the radiator is also connected to the fuel cell system to form a circulation loop.

[0012] The present invention is further configured such that: a hydrogen pressure sensor is also provided in the solid-state hydrogen storage module.

[0013] The present invention is further configured as follows: the oil-cooled solid-state hydrogen storage thermal management system also includes a main control unit, which is electrically connected to the three-way valve body, the fuel cell system, the electric hydraulic cylinder, the water pump, the oil pump and the hydrogen pressure sensor.

[0014] The present invention also includes a control method for an oil-cooled solid-state hydrogen storage thermal management system, which uses the above-mentioned oil-cooled solid-state hydrogen storage thermal management system and includes the following steps:

[0015] S1: Place the solid-state hydrogen storage bottle in the flexible deformable liner;

[0016] S2: The main control unit activates the electric hydraulic cylinder, increasing the oil pressure in the flexible deformable inner liner and causing it to expand in volume, tightly wrapping the solid hydrogen storage bottle and fully filling the space between the solid hydrogen storage bottle and the hydraulic oil storage chamber. This allows the heat in the hydraulic oil storage chamber to be smoothly transferred to the hydrogen storage bottle through the flexible deformable inner liner.

[0017] S3: Start the fuel cell system to realize water circulation between the fuel cell system and the plate heat exchanger;

[0018] S4: Start the oil pump to realize the circulation of hydraulic oil between the hydraulic oil storage chamber and the plate heat exchanger, and transfer the heat of the fuel cell brought by the plate heat exchanger to the hydraulic oil storage chamber;

[0019] S5: The heat in the hydraulic oil storage chamber is transferred to the flexible deformable inner tank and the solid hydrogen storage bottle in sequence through heat conduction to achieve heat exchange;

[0020] S6: The main control unit determines whether the solid-state hydrogen storage bottle is in a disassembled state through the hydrogen pressure sensor, and controls the start and stop of the oil pump and the electric hydraulic cylinder.

[0021] The present invention is further configured as follows: Step S3 specifically includes: when the temperature of the fuel cell system is lower than a first temperature threshold, the fuel cell system is in an internal circulation heating state; when the temperature of the fuel cell system is higher than a second temperature threshold, the water pump is started to transfer the heat of the fuel cell to the plate heat exchanger by using water circulation; when the temperature of the fuel cell system is higher than a third temperature threshold, the fuel cell system is connected to the radiator and the expansion water tank to dissipate heat;

[0022] The first temperature threshold is less than the second temperature threshold and less than the third temperature threshold.

[0023] The present invention is further configured as follows: Step S6 specifically includes presetting a first hydrogen pressure threshold and a second hydrogen pressure threshold. When the hydrogen pressure detected by the hydrogen pressure sensor is less than the first hydrogen pressure threshold, it is determined that the solid-state hydrogen storage bottle is in a disassembled state, and the main control unit controls the electric hydraulic cylinder to release pressure, and the oil pump stops working;

[0024] When the hydrogen pressure detected by the hydrogen pressure sensor is greater than the first hydrogen pressure threshold, the solid-state hydrogen storage bottle is determined to be in a filled state, the main control unit controls the electric hydraulic cylinder to increase the pressure, and the oil pump starts working;

[0025] The second hydrogen pressure threshold is greater than the first hydrogen pressure threshold.

[0026] In summary, the beneficial effects of the above technical solution of the present invention are as follows:

[0027] 1. The present invention controls the contraction and expansion of the flexible deformable inner liner through a power device to fix the solid-state hydrogen storage bottle inside, thereby solving the problem of quick replacement of the hydrogen storage bottle; and the expanded flexible deformable inner liner can tightly wrap the solid-state hydrogen storage bottle, avoiding the problem of fitting gap caused by processing and thus seriously affecting heat transfer.

[0028] 2. The present invention combines oil circulation with water circulation, fully utilizing the preheating heat energy of the fuel cell system, solving the heat demand of solid-state hydrogen storage, and improving the system finishing efficiency.

[0029] 3. The oil-cooled solid-state hydrogen storage thermal management control method of the present invention sets multiple thresholds to enable the control system to enter different circulation loops, thereby achieving efficient utilization of the thermal management system under different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 This is a schematic structural diagram of the oil-cooled solid-state hydrogen storage thermal management system according to Example 1 of the present invention;

[0032] Figure 2 This is a flow chart of the control method of the oil-cooled solid-state hydrogen storage thermal management system described in Example 2 of the present invention;

[0033] Figure 3 This is a schematic diagram of the control strategy of the oil-cooled solid-state hydrogen storage thermal management system described in Example 2 of the present invention.

[0034] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0035] 100. Solid-state hydrogen storage module, 101. Mechanical fixing components, 102. Hydraulic oil storage chamber, 103. Flexible deformation liner, 104. Solid-state hydrogen storage bottle, 2. Electric hydraulic cylinder, 3. Fuel cell system, 4. Three-way valve body, 5. Water pump, 6. Plate heat exchanger, 7. Hydraulic oil tank, 8. Oil pump, 9. Radiator, 10. Expansion tank, 11. Main control unit. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is clearly and completely described below in conjunction with the accompanying drawings of the present invention. Based on the embodiments in this application, other similar embodiments obtained by ordinary technicians in this field without making any creative work should fall within the scope of protection of this application.

[0037] The present invention will be further described below with reference to the accompanying drawings and preferred embodiments.

[0038] Example 1:

[0039] like Figure 1 The figure shows a preferred embodiment of the present invention, an oil-cooled solid-state hydrogen storage thermal management system, comprising a solid-state hydrogen storage module 100. The solid-state hydrogen storage module 100 includes a mechanical fixing component 101, a hydraulic oil storage chamber 102, a flexible deformable liner 103, and a solid-state hydrogen storage bottle 104. The hydraulic oil storage chamber 102 is disposed within the mechanical fixing component 101, and the flexible deformable liner 103 is disposed within the hydraulic oil storage chamber 102. The solid-state hydrogen storage bottle 104 is disposed within the flexible deformable liner 103. The flexible deformable liner 103 is connected to a power unit. A hydrogen pressure sensor is also disposed within the solid-state hydrogen storage module 100.

[0040] It should be noted that the mechanical fixing component 101 is a trough structure for fixing the hydraulic oil storage chamber 102 , and the flexible deformable liner 103 is an independent oil chamber. At least one flexible deformable liner 103 is provided in the hydraulic oil storage chamber 102 .

[0041] In this embodiment, two flexible deformable inner tanks 103 are provided in the hydraulic oil storage chamber 102. The power device is an electric hydraulic cylinder 2. When the electric hydraulic cylinder 2 is pressurized, the flexible deformable inner tank 103 expands. When the electric hydraulic cylinder 102 is depressurized, the flexible deformable inner tank 103 contracts.

[0042] The oil-cooled solid-state hydrogen storage thermal management system also includes a water circulation system, which includes a fuel cell system 3, a three-way valve body 4, a water pump 5 and a plate heat exchanger 6; the three-way valve body 4 includes a first port, a second port and a third port, the fuel cell circulation system 3 is connected to the first port of the three-way valve body 4, the second port of the three-way valve body 4 is connected to the input port of the plate heat exchanger 6, a water pump 5 is arranged between the plate heat exchanger 6 and the three-way valve body 4, and the output port of the plate heat exchanger 6 is connected to the fuel cell system 3 to form a circulation loop.

[0043] The oil-cooled solid-state hydrogen storage thermal management system also includes an oil circulation system, which includes a hydraulic oil tank 7 and an oil pump 8; the output port of the plate heat exchanger 6 is connected to the hydraulic oil tank 7, and the hydraulic oil tank 7 is connected to the hydraulic oil storage chamber 102 in the solid-state hydrogen storage module 100. An oil pump 8 is provided between the hydraulic oil tank 7 and the solid-state hydrogen storage module 100, and the hydraulic oil storage chamber 102 is connected to the input port of the plate heat exchanger 6 to form a circulation loop.

[0044] The oil-cooled solid-state hydrogen storage thermal management system also includes a radiator 9 and an expansion water tank 10; the third port of the three-way valve body 4 is connected to the input port of the radiator 9, and the output port of the radiator 9 is connected to the expansion water tank 10; the output port of the radiator 9 is also connected to the fuel cell system 3 to form a circulation loop.

[0045] The oil-cooled solid-state hydrogen storage thermal management system further includes a main control unit 11 , which is electrically connected to the three-way valve body 4 , the fuel cell system 3 , the electric hydraulic cylinder 2 , the water pump 5 , the oil pump 8 and the hydrogen pressure sensor.

[0046] Example 2:

[0047] like Figure 2 As shown in FIG. 1 , a preferred embodiment of the present invention is a control method for an oil-cooled solid-state hydrogen storage thermal management system, which adopts the above-mentioned oil-cooled solid-state hydrogen storage thermal management system and includes the following steps:

[0048] S1: Place the solid hydrogen storage bottle 104 in the flexible deformable inner liner 103; at this time, the oil pressure in the flexible deformable inner liner 103 is in a pressure relief state, and there is an installation gap between the flexible deformable inner liner 103 and the solid hydrogen storage bottle 104, which is easy to operate and replace.

[0049] S2: The main control unit 11 starts the electric hydraulic cylinder 2, increasing the oil pressure in the flexible deformable inner liner 103, expanding the volume, tightly wrapping the solid hydrogen storage bottle 104, and fully filling the space between the solid hydrogen storage bottle 104 and the hydraulic oil storage chamber 102, so that the heat in the hydraulic oil storage chamber 102 can be smoothly transferred to the solid hydrogen storage bottle 104 through the flexible deformable inner liner 103.

[0050] S3: Start the fuel cell system 3 to realize water circulation between the fuel cell system 3 and the plate heat exchanger 6; Figure 3 As shown, a temperature sensor is provided at the fuel cell system 3. When the temperature of the fuel cell system 3 is lower than a first temperature threshold, the fuel cell system 3 is in an internal circulation heating state. When the temperature of the fuel cell system 3 is higher than a second temperature threshold, the water pump 5 is started, and the heat of the fuel cell is transferred to the plate heat exchanger 6 by means of water circulation. When the temperature of the fuel cell system 3 is higher than a third temperature threshold, the fuel cell system 3 is connected to the radiator 9 and the expansion water tank 10 for heat dissipation.

[0051] It should be noted that the present invention sets three temperature thresholds, wherein the first temperature threshold is less than the second temperature threshold and the third temperature threshold. When the temperature of the fuel cell system 3 is less than the first temperature threshold, the temperature of the fuel cell system 3 itself is not high enough to participate in heat exchange, and the fuel cell system 3 is in an internal circulation heating state. When the temperature of the fuel cell system 3 is greater than the second temperature threshold, the water pump 5 is started to transfer the heat of the fuel cell to the plate heat exchanger 6. The plate heat exchanger 6 further transfers heat with the hydraulic oil circulation, and the heat of the fuel cell brought by the plate heat exchanger 6 is transferred to the hydraulic oil storage chamber 102. When the temperature of the fuel cell system 3 is greater than the third temperature threshold, the fuel cell system 3 is overheated and requires large-circulation cooling, connecting the fuel cell system 3 with the radiator 9 and the expansion tank 10, and then recirculating back to the fuel cell system 3 for cooling and heat dissipation. By setting multiple thresholds, the present invention controls the oil-cooled solid-state hydrogen storage thermal management system to enter different circulation loops, achieving efficient utilization of the thermal management system under different operating conditions.

[0052] S4 : starting the oil pump 8 to realize the circulation of hydraulic oil between the hydraulic oil storage chamber 102 and the plate heat exchanger 6 , and transferring the heat of the fuel cell brought by the plate heat exchanger 6 to the hydraulic oil storage chamber 102 .

[0053] The oil pump 8 inputs the hydraulic oil in the hydraulic oil tank into the hydraulic oil storage chamber 102. The hydraulic oil in the hydraulic oil storage chamber 102 passes through the plate heat exchanger 6. The plate heat exchanger 6 contains the heat transferred by the fuel cell system 3 in step S3. Therefore, the hydraulic oil is input into the hydraulic oil tank 7 after heat transfer in the plate heat exchanger 6, and then transported back to the hydraulic oil storage chamber 102 by the oil pump 8 to realize the heat transfer cycle.

[0054] S5: The heat in the hydraulic oil storage chamber 102 is transferred to the flexible deformable liner 103 and the solid hydrogen storage bottle 104 in sequence through heat conduction, thereby achieving heat exchange.

[0055] S6: The main control unit 11 determines whether the solid-state hydrogen storage bottle 104 is in the disassembled state through the hydrogen pressure sensor, and controls the start and stop of the oil pump 8 and the electric hydraulic cylinder 2. First, a first hydrogen pressure threshold and a second hydrogen pressure threshold are preset. When the hydrogen pressure detected by the hydrogen pressure sensor is less than the first hydrogen pressure threshold, the solid-state hydrogen storage bottle 104 is determined to be in the disassembled state. The main control unit 11 controls the electric hydraulic cylinder 2 to release pressure, and the oil pump 8 stops working.

[0056] When the hydrogen pressure detected by the hydrogen pressure sensor is greater than the first hydrogen pressure threshold, the solid-state hydrogen storage bottle 104 is determined to be in a filled state, the main control unit 11 controls the electric hydraulic cylinder 2 to pressurize, and the oil pump 8 starts working; wherein the second hydrogen pressure threshold is greater than the first hydrogen pressure threshold.

[0057] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An oil-cooled solid-state hydrogen storage thermal management system, characterized in that: The solid-state hydrogen storage module includes a mechanical fixing component, a hydraulic oil storage chamber, a flexible deformable liner, and a solid-state hydrogen storage bottle; the hydraulic oil storage chamber is provided in the mechanical fixing component, the flexible deformable liner is provided inside the hydraulic oil storage chamber, and the solid-state hydrogen storage bottle is provided in the flexible deformable liner; the flexible deformable liner is connected to the power device; The flexible deformable inner liner is an independent oil chamber, and the power device is an electric hydraulic cylinder; the electric hydraulic cylinder controls the expansion or contraction of the flexible deformable inner liner, and when the flexible deformable inner liner is in the expanded state, it can tightly wrap the solid-state hydrogen storage bottle and fully fill the space between the solid-state hydrogen storage bottle and the hydraulic oil storage chamber.

2. The oil-cooled solid-state hydrogen storage thermal management system according to claim 1, characterized in that: At least one flexible deformable liner is provided in the hydraulic oil storage chamber.

3. The oil-cooled solid-state hydrogen storage thermal management system according to claim 2, characterized in that: The oil-cooled solid-state hydrogen storage thermal management system also includes a water circulation system, which includes a fuel cell system, a water pump and a plate heat exchanger; the fuel cell system is connected to the first port of the three-way valve body, the second port of the three-way valve body is connected to the input port of the plate heat exchanger, a water pump is arranged between the plate heat exchanger and the three-way valve body, and the output port of the plate heat exchanger is connected to the fuel cell system to form a circulation loop.

4. The oil-cooled solid-state hydrogen storage thermal management system according to claim 3, characterized in that: The oil-cooled solid-state hydrogen storage thermal management system also includes an oil circulation system, which includes a hydraulic oil tank and an oil pump; the output port of the plate heat exchanger is connected to the hydraulic oil tank, and the hydraulic oil tank is connected to the hydraulic oil storage chamber in the solid-state hydrogen storage module. An oil pump is provided between the hydraulic oil tank and the solid-state hydrogen storage module, and the hydraulic oil storage chamber is connected to the input port of the plate heat exchanger to form a circulation loop.

5. The oil-cooled solid-state hydrogen storage thermal management system according to claim 3, characterized in that: The oil-cooled solid-state hydrogen storage thermal management system also includes a radiator and an expansion water tank; the third port of the three-way valve body is connected to the input port of the radiator, and the output port of the radiator is connected to the expansion water tank; the output port of the radiator is also connected to the fuel cell system to form a circulation loop.

6. The oil-cooled solid-state hydrogen storage thermal management system according to claim 1, characterized in that: A hydrogen pressure sensor is also provided in the solid-state hydrogen storage module.

7. An oil-cooled solid-state hydrogen storage thermal management system according to any one of claims 4 to 6, characterized in that: The oil-cooled solid-state hydrogen storage thermal management system further includes a main control unit, which is electrically connected to the three-way valve body, the fuel cell system, the power unit, the water pump, the oil pump and the hydrogen pressure sensor respectively.

8. A control method for an oil-cooled solid-state hydrogen storage thermal management system, using the oil-cooled solid-state hydrogen storage thermal management system according to claim 7, characterized in that: The following steps are involved: S1: Place the solid-state hydrogen storage bottle in the flexible deformable liner; S2: The main control unit activates the electric hydraulic cylinder to increase the oil pressure in the flexible deformable liner, causing the volume to expand and tightly wrap the solid hydrogen storage bottle; S3: Start the fuel cell system to realize water circulation between the fuel cell system and the plate heat exchanger; S4: Start the oil pump to realize the circulation of hydraulic oil between the hydraulic oil storage chamber and the plate heat exchanger, and transfer the heat of the fuel cell brought by the plate heat exchanger to the hydraulic oil storage chamber; S5: The heat in the hydraulic oil storage chamber is transferred to the flexible deformable inner tank and the solid hydrogen storage bottle in sequence through heat conduction to achieve heat exchange; S6: The main control unit determines whether the solid-state hydrogen storage bottle is in a disassembled state through the hydrogen pressure sensor, and controls the start and stop of the oil pump and the electric hydraulic cylinder.

9. The oil-cooled solid-state hydrogen storage thermal management system control method according to claim 8, characterized in that: Specifically, step S3 includes: when the temperature of the fuel cell system is lower than the first temperature threshold, the fuel cell system is in an internal circulation heating state; when the temperature of the fuel cell system is higher than the second temperature threshold, the water pump is started to transfer the heat of the fuel cell to the plate heat exchanger through water circulation; when the temperature of the fuel cell system is higher than the third temperature threshold, the fuel cell system is connected to the radiator and the expansion water tank for heat dissipation; The first temperature threshold is less than the second temperature threshold and less than the third temperature threshold.

10. The oil-cooled solid-state hydrogen storage thermal management system control method according to claim 8, characterized in that: Step S6 specifically includes presetting a first hydrogen pressure threshold and a second hydrogen pressure threshold. When the hydrogen pressure detected by the hydrogen pressure sensor is less than the first hydrogen pressure threshold, the solid-state hydrogen storage bottle is determined to be in a disassembled state, and the main control unit controls the electric hydraulic cylinder to release pressure, and the oil pump stops working. When the hydrogen pressure detected by the hydrogen pressure sensor is greater than the first hydrogen pressure threshold, the solid-state hydrogen storage bottle is determined to be in a filled state, the main control unit controls the electric hydraulic cylinder to increase the pressure, and the oil pump starts working; The second hydrogen pressure threshold is greater than the first hydrogen pressure threshold.

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