Thermal management system of hydrogen power vehicle

Abstract

The thermal management system comprises a solid hydrogen storage bottle, and the solid hydrogen storage bottle comprises a hydrogen storage bottle inner container, an insulation heating film and a hydrogen storage bottle shell; the insulating heating film is attached to the hydrogen storage bottle inner container, a heat exchange cavity is formed between the hydrogen storage bottle shell and the hydrogen storage bottle inner container, and the hydrogen storage bottle shell is provided with a water inlet and a water outlet which are communicated with the cavity. A bottle body of the solid hydrogen storage bottle is of a layered functional structure, an inner container layer is used for forming a container for storing hydrogen, the inner container layer is coated with an insulating heating film, and the hydrogen bottle is heated through electric heating before low-temperature starting; an inner cavity is formed between the outermost layer and the inner single layer and is used for circulating hot fluid entering from the outside, so that heat required by hydrogen release can be continuously supplemented to the hydrogen bottle, and the hydrogen bottle is kept in an optimal working temperature state; the problem that the hydrogen release capacity of the solid hydrogen storage cylinder is weak at low temperature is solved by combining system waste heat and electric heating; and the structure is compact, easy to implement, safe and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen-powered vehicles, and in particular to a thermal management system for hydrogen-powered vehicles. Background Art

[0002] The transformation and development of green energy has entered the fast lane of acceleration. Against this background, the official release of the "Medium- and Long-Term Plan for the Development of the Hydrogen Energy Industry (2021-2035)" clarified the goals and tasks of hydrogen energy development, and also proposed corresponding guarantee measures to support the development of green energy transformation.

[0003] As one of the green travel solutions, hydrogen fuel cell-powered two-wheeled vehicles are low-cost and easy to promote, and play an important role in the demonstration and promotion of green hydrogen energy.

[0004] Hydrogen-powered two-wheeled vehicles mostly use solid-state hydrogen storage bottles. One of the main challenges currently faced is the ability to release the hydrogen stored in the bottles at a high temperature, typically no lower than 25°C. In cold winter regions, during the startup phase of the fuel cell system, before the bottle temperature reaches the required level, the hydrogen release rate is low or even nonexistent, impacting normal system operation. my country, with its vast territory and significant year-round climate variation, requires addressing the adaptability of solid-state hydrogen storage bottles to various temperatures, thus addressing the challenges of promoting hydrogen-powered two-wheeled vehicles.

[0005] The most common solution currently is to increase the temperature of the hydrogen bottle body by heating the bottle body with circulating hot water. The heat source component and the hydrogen bottle are two independent components that exchange heat with each other. The main disadvantage of this solution is that it is not conducive to the frequent replacement of hydrogen bottles for hydrogen-powered two-wheeled vehicles. To achieve a better heat exchange effect, the hot fluid or the component circulating the hot fluid should be in direct contact with the hydrogen bottle shell, but this is not conducive to the removal and installation of the hydrogen bottle; if the hot fluid component maintains a gap with the hydrogen bottle body to facilitate the removal and installation of the hydrogen bottle, but the hot fluid component transfers heat through the air, the heat exchange performance is reduced, and the heat exchange efficiency is low.

[0006] For example, patent CN220569715U discloses a heat exchange device that contacts a hydrogen storage bottle with a fuel cell. This heat exchange device, by directly contacting a solid-state hydrogen storage bottle with a hydrogen fuel cell, achieves efficient transfer between the waste heat of the fuel cell and the heat absorbed by the hydrogen release reaction of the solid-state hydrogen storage bottle. When the temperature is low, both the solid-state hydrogen storage bottle and the hydrogen fuel cell require heat during startup, which is not conducive to cold starting of the vehicle. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the present invention provides a thermal management system for hydrogen-powered vehicles, which utilizes a combination of system waste heat and electric heating to solve the problem of weak hydrogen release capacity of solid-state hydrogen storage bottles at low temperatures.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0009] The hydrogen-powered vehicle thermal management system includes a solid-state hydrogen storage bottle, which includes a hydrogen storage bottle liner, an insulating heating film, and a hydrogen storage bottle shell; the insulating heating film is attached to the hydrogen storage bottle liner, and a heat exchange cavity is formed between the hydrogen storage bottle shell and the hydrogen storage bottle liner. The hydrogen storage bottle shell is provided with a water inlet and a water outlet connected to the cavity.

[0010] Further:

[0011] The insulating heating film is arranged to be attached around the outer edge of the inner container of the hydrogen storage bottle.

[0012] A high-voltage connector is provided on the outer shell of the hydrogen storage bottle.

[0013] The control method of the system is as follows: before starting at low temperature, the hydrogen bottle is first heated by electric heating using an insulating heating film; the external hot fluid continuously replenishes the hydrogen bottle with the heat required for releasing hydrogen through the heat exchange cavity.

[0014] In the control method,

[0015] When a fuel cell system equipped with a solid-state hydrogen storage bottle is cold-started, the hydrogen storage bottle must be preheated first to reach a certain temperature before hydrogen can be released for starting the fuel cell system; during the preheating stage, an external power supply energizes the insulating heating film through a high-voltage connector, and the insulating heating film converts electrical energy into thermal energy, which is then transferred to the surrounding objects for heating; when the temperature in the hydrogen storage bottle reaches the target temperature, the bottle valve can be opened to provide hydrogen with a certain pressure and flow rate to the external system.

[0016] The management system also includes a fuel cell stack, a water pump, a radiator assembly, a hydrogen bottle valve and an external power supply; the coolant outlet of the fuel cell stack is connected to the water inlet of the solid-state hydrogen storage bottle through the water pump, the water outlet of the solid-state hydrogen storage bottle is connected to the coolant inlet of the fuel cell stack through the radiator assembly, the gas outlet of the solid-state hydrogen storage bottle is connected to the air inlet of the fuel cell stack through the hydrogen bottle valve, and the insulating heating film is connected to the external power supply.

[0017] A temperature sensor I is provided between the solid-state hydrogen storage bottle and the radiator assembly.

[0018] A temperature sensor II is provided between the radiator assembly and the fuel cell stack.

[0019] The control method of the management system is:

[0020] The system needs to be preheated during the startup phase:

[0021] By electrifying and heating the insulating heating film built into the solid-state hydrogen storage bottle, while the water pump drives the coolant in the cooling system to circulate, the heat generated by the insulating heating film will be transferred to the solid-state hydrogen storage bottle itself and the coolant flowing through the solid-state hydrogen storage bottle. When the heated coolant flows through the fuel cell stack, it will heat the fuel cell stack;

[0022] When the fuel cell system is started and operating normally:

[0023] The fuel cell itself generates heat energy, which is mainly dissipated through circulating cooling water flowing through the radiator; the hydrogen bottle needs to absorb heat when releasing hydrogen. When the temperature of the coolant flowing out of the fuel cell stack reaches a certain condition, the heating of the insulating heating film built into the solid-state hydrogen storage bottle can be stopped, and the heat in the coolant can be used to provide the heat required to release the hydrogen.

[0024] In the control method,

[0025] According to the temperature of the water flowing out of the solid hydrogen storage bottle measured by the temperature sensor I, it is determined that when the solid hydrogen storage bottle reaches the temperature condition for releasing hydrogen, the hydrogen bottle valve is opened to release hydrogen to the fuel cell stack, thereby starting the fuel cell system;

[0026] After the fuel cell system starts operating normally, the excess heat of the fuel cell is dissipated through heat exchange between the radiator assembly and the air. The temperature measured by temperature sensor II is used to determine whether the water temperature entering the fuel cell stack meets the target requirement, and then the speed of the water pump and the fan in the radiator assembly are adjusted.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] The thermal management system of this hydrogen-powered vehicle is rationally designed. The body of the solid-state hydrogen storage bottle is made into a layered functional structure. The inner liner layer is used to form a container for storing hydrogen. The inner liner layer is covered with an insulating heating film. Electric heating is used to heat the hydrogen bottle before starting at low temperature. An inner cavity is formed between the outermost layer and the inner single layer for circulating external hot fluid, which can continuously replenish the hydrogen bottle with heat required for releasing hydrogen and keep the hydrogen bottle at the optimal operating temperature. It uses the combination of system waste heat and electric heating to solve the problem of weak hydrogen release ability of solid-state hydrogen storage bottles at low temperatures. It has a compact structure, is easy to implement, and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The following is a brief description of the contents and symbols in the drawings of this specification:

[0030] Figure 1 Schematic diagram of the thermal management system of the present invention.

[0031] Figure 2 This is a schematic structural diagram of the solid-state hydrogen storage bottle of the present invention.

[0032] In the picture:

[0033] 1. Fuel cell stack; 2. Water pump; 3. Solid-state hydrogen storage bottle; 4. Temperature sensor I; 5. Radiator assembly; 6. Hydrogen bottle valve; 7. External power supply; 8. Hydrogen exhaust structure; 9. Temperature sensor II;

[0034] 301 hydrogen storage bottle liner; 302 insulation heating film; 303 hydrogen storage bottle shell; 304 water inlet; 305 water outlet; 306 high-voltage connector. DETAILED DESCRIPTION

[0035] Although the present invention is shown and described herein with reference to specific embodiments, it is not intended that the invention be limited to the details shown. Rather, various modifications may be made in the details within the scope and range of equivalents of the claims without departing from the present invention. In the accompanying drawings, the same item numbers refer to the same elements.

[0036] Various terms are used throughout this disclosure to describe the physical shape or arrangement of features. Many of these terms are used to describe features that conform to a cylindrical or generally cylindrical geometry with the feature as the radius and a central axis perpendicular to the radius. Unless a different meaning is specified, the terms are given the following meanings. The terms "longitudinal," "longitudinal," "axial," and "axially" refer to a direction, dimension, or orientation that is parallel to the central axis. The terms "radial" and "radially" refer to a direction, dimension, or orientation that is perpendicular to the central axis. The terms "inward" and "inwardly" refer to a direction, dimension, or orientation extending in a radial direction toward the central axis. The terms "outward" and "outwardly" refer to a direction, dimension, or orientation extending in a radial direction away from the central axis.

[0037] In the specification, relative terms such as "horizontal," "vertical," "upward," "downward," "top," and "bottom," and their derivatives (e.g., "horizontal," "downward," "upward," etc.) should be interpreted as referring to the direction being described or shown in the drawings being discussed. These relative terms are for convenience of description and are generally not intended to require a particular orientation.

[0038] The specific implementation of the present invention will be further explained in detail below through description of embodiments with reference to the accompanying drawings.

[0039] like Figure 1 and Figure 2 As shown, the thermal management system of the hydrogen-powered vehicle includes a solid-state hydrogen storage bottle, which includes a hydrogen storage bottle liner, an insulating heating film and a hydrogen storage bottle shell; the insulating heating film is attached to the hydrogen storage bottle liner, and a heat exchange cavity is formed between the hydrogen storage bottle shell and the hydrogen storage bottle liner. The hydrogen storage bottle shell is provided with a water inlet and a water outlet connected to the cavity.

[0040] The insulating heating film is applied around the outer edge of the hydrogen storage bottle's inner liner, or the bonding area can be set as needed. A high-voltage connector is provided on the hydrogen storage bottle's outer shell, which is connected to an external power source through the connector.

[0041] The insulating heating film is directly attached to the inner liner of the hydrogen storage bottle. It has self-heating capabilities and can provide sufficient hydrogen pressure and flow during the low-temperature cold start phase, while maintaining efficient release capabilities.

[0042] Specifically, the insulating heating film is attached to the outside of the inner liner of the hydrogen bottle, and power is supplied to it to heat the hydrogen bottle, thereby achieving self-heating capability; at the same time, it can also heat the liquid flowing through the inside of the bottle. The heated liquid flows through the fuel cell stack to heat the core, thereby improving the cold start capability of the fuel cell stack.

[0043] Solid-state hydrogen storage bottles have the ability to heat the bottle body through an external heat source, which can reduce the overall power consumption required for heating; specifically: there is a structural cavity between the bottle body shell and the insulating heating film for circulating fluid, and the fluid flows through the hydrogen bottle body, the fuel cell stack and the external heat dissipation system; in addition to improving the cold start capability of the fuel cell stack during the cold start phase, during normal operation, the hot fluid flowing out of the fuel cell stack can heat the hydrogen bottle and provide the heat required for hydrogen release. At this stage, the power supply of the heating film can be disconnected to reduce power consumption.

[0044] Solid-state hydrogen storage bottles offer rapid replacement capabilities, meeting the need for frequent bottle replacement in scenarios such as hydrogen-powered two-wheeled vehicles. Specifically, hydrogen-powered two-wheeled vehicles are often used in shared electric motorcycles, where hydrogen bottles need to be frequently removed for centralized refueling. Once refilled, the bottles need to be reinstalled on the vehicles, requiring rapid and frequent disassembly and assembly. The bottle's external interfaces include quick-connect connectors for the coolant inlet and outlet, a connector for the heating membrane, and a hydrogen bottle valve assembly. Replacing a hydrogen bottle requires only disconnecting the various connectors.

[0045] The thermal management control method of the solid-state hydrogen storage bottle of the system of the present invention is: before low-temperature startup, the hydrogen bottle is first heated by electric heating using an insulating heating film; the external hot fluid continuously replenishes the hydrogen bottle with the heat required for releasing hydrogen through the heat exchange cavity.

[0046] The specific control strategy is: when a fuel cell system equipped with a solid-state hydrogen storage bottle is cold-started, the hydrogen storage bottle must be preheated first to reach a certain temperature before hydrogen can be released for starting the fuel cell system; during the preheating stage, an external power supply energizes the insulating heating film through a high-voltage connector, and the insulating heating film converts electrical energy into thermal energy, which is then transferred to the surrounding objects for heating; when the temperature in the hydrogen storage bottle reaches the target temperature, the bottle mouth valve can be opened to provide hydrogen with a certain pressure and flow rate to the external system.

[0047] like Figure 1As shown, the management system also includes a fuel cell stack, a water pump, a radiator assembly, a hydrogen bottle valve and an external power supply; the coolant outlet of the fuel cell stack is connected to the water inlet of the solid-state hydrogen storage bottle through the water pump, the water outlet of the solid-state hydrogen storage bottle is connected to the coolant inlet of the fuel cell stack through the radiator assembly, the gas outlet of the solid-state hydrogen storage bottle is connected to the air inlet of the fuel cell stack through the hydrogen bottle valve, and the insulating heating film is connected to the external power supply.

[0048] Furthermore, a temperature sensor I is provided between the solid-state hydrogen storage bottle and the radiator assembly; a temperature sensor II is provided between the radiator assembly and the fuel cell stack; by detecting the temperature of the fluid through the temperature sensor, precise thermal management control can be achieved.

[0049] The core control strategy of the thermal management system for hydrogen-powered vehicles of the present invention is:

[0050] The system needs to be preheated during the startup phase:

[0051] By electrifying and heating the insulating heating film built into the solid-state hydrogen storage bottle, while the water pump drives the coolant in the cooling system to circulate, the heat generated by the insulating heating film will be transferred to the solid-state hydrogen storage bottle itself and the coolant flowing through the solid-state hydrogen storage bottle. When the heated coolant flows through the fuel cell stack, it will heat the fuel cell stack;

[0052] When the fuel cell system is started and operating normally:

[0053] The fuel cell itself generates heat energy, which is mainly dissipated through circulating cooling water flowing through the radiator; the hydrogen bottle needs to absorb heat when releasing hydrogen. When the temperature of the coolant flowing out of the fuel cell stack reaches a certain condition, the heating of the insulating heating film built into the solid-state hydrogen storage bottle can be stopped, and the heat in the coolant can be used to provide the heat required to release the hydrogen.

[0054] The thermal management system of the hydrogen-powered vehicle of the present invention is reasonably designed. The body of the solid-state hydrogen storage bottle is made into a layered functional structure. The inner liner layer is used to form a container for storing hydrogen. The inner liner layer is covered with an insulating heating film. Electric heating is used to heat the hydrogen bottle before starting at a low temperature. An inner cavity is formed between the outermost layer and the inner single layer for circulating hot fluid entering from the outside. The heat required for releasing hydrogen can be continuously replenished to the hydrogen bottle, so that the hydrogen bottle is maintained at an optimal operating temperature. It uses the combination of system waste heat and electric heating to solve the problem of weak hydrogen release ability of solid-state hydrogen storage bottles at low temperatures. The structure is compact, easy to implement, safe and reliable.

[0055] like Figure 1 and Figure 2 As shown, preferred embodiments of the present invention are:

[0056] The core architecture diagram of the thermal management system for hydrogen-powered two-wheeled vehicles of the present invention is shown in the following figure: Figure 2As shown, it mainly includes a fuel cell stack 1; a water pump 2; a solid-state hydrogen storage bottle 3; a temperature sensor I 4; a radiator assembly 5; a hydrogen bottle valve 6; an external power supply 7; a hydrogen exhaust structure 8 and a temperature sensor II 9.

[0057] Fuel cell stack 1: One of the driving power sources of hydrogen-powered two-wheeled vehicles; the place where the electrochemical reaction occurs, converting the chemical energy of hydrogen and oxygen in the air into electrical energy and heat energy;

[0058] Water pump 2: drives the coolant to flow in the cooling system;

[0059] Solid-state hydrogen storage bottle 3: stores and releases hydrogen; the built-in insulating heating film converts electrical energy into thermal energy when powered on, heating the coolant flowing through it and itself;

[0060] Temperature sensor I4: detects the temperature of the coolant flowing out of the solid hydrogen storage bottle 3

[0061] Radiator assembly 5: cools the coolant flowing through it to ensure that the water temperature entering the fuel cell stack 1 meets the target requirement;

[0062] Hydrogen bottle valve 6: Open the valve to release the hydrogen in the solid hydrogen storage bottle 3, and close the valve to cut off the release of hydrogen in the solid hydrogen storage bottle 3;

[0063] External power supply 7: provides power to the built-in insulating heating film in the solid-state hydrogen storage bottle 3;

[0064] Hydrogen exhaust structure 8: exhausts the residual gas after the reaction of the fuel cell stack 1;

[0065] Temperature sensor II9: Detects the temperature of the coolant flowing out of the radiator assembly.

[0066] like Figure 1 As shown, the solid-state hydrogen storage bottle is the core component of the system, which mainly includes a hydrogen storage bottle liner 301; an insulating heating film 302; a hydrogen storage bottle shell 303; a water inlet 304; a water outlet 305 and a high-voltage connector 306.

[0067] Hydrogen storage bottle liner 1: stores solid-state hydrogen storage materials and hydrogen;

[0068] Insulating heating film 2: converts electrical energy into thermal energy to heat the inner tank and the water between the outer shell and the inner tank layer, while maintaining electrical isolation from the water;

[0069] Hydrogen storage bottle shell 3: forms a closed space with the inner liner layer for water circulation;

[0070] Water inlet 4: The location where heat exchange water flows into the hydrogen storage bottle;

[0071] Water outlet 5: The location where the water after heat exchange flows out of the hydrogen storage bottle;

[0072] High voltage connector 6: external cable connector, which can power the insulating heating film after connection.

[0073] The working principle of the thermal management system of the present invention is as follows:

[0074] Under the lower ambient temperature in winter, when the fuel cell system of a hydrogen-powered two-wheeled vehicle is cold-started, the solid-state hydrogen storage bottle needs to reach a certain temperature condition to be able to release hydrogen that meets the pressure and flow requirements. At the same time, in order to ensure a smooth cold start of the fuel cell system and a good service life, the fuel cell stack itself usually needs to reach a certain temperature during startup.

[0075] The system needs to be preheated during the startup phase. By energizing and heating the insulating heating membrane built into the solid-state hydrogen storage bottle, while simultaneously operating the water pump to circulate the coolant in the cooling system, the heat generated by the insulating heating membrane is transferred to the solid-state hydrogen storage bottle itself and the coolant flowing through it. When the heated coolant flows through the fuel cell stack, it heats the fuel cell stack. Based on the temperature of the water flowing out of the solid-state hydrogen storage bottle measured by temperature sensor I, it is determined that when the solid-state hydrogen storage bottle reaches the temperature condition for releasing hydrogen (usually at this temperature, the fuel cell stack also meets the cold start conditions), the hydrogen bottle valve is opened to release hydrogen to the fuel cell stack, thereby starting the fuel cell system.

[0076] After startup and during normal operation, the fuel cell system generates heat, which is primarily dissipated through circulating cooling water through the radiator. The hydrogen cylinder absorbs heat as it releases hydrogen. When the temperature of the coolant exiting the fuel cell stack reaches a certain level, heating the insulating heating membrane within the solid-state hydrogen storage cylinder ceases, and the heat in the coolant is used to provide the heat required for hydrogen release. Excess heat is dissipated through heat exchange between the radiator assembly and the air. The temperature measured by Temperature Sensor II determines whether the water temperature entering the fuel cell stack meets the target temperature, which in turn regulates the speed of the water pump and the fan in the radiator assembly.

[0077] The above is only an illustration of a preferred embodiment of the present invention. The above technical features can be arbitrarily combined to form multiple embodiments of the present invention.

[0078] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A thermal management system for a hydrogen-powered vehicle, comprising a solid-state hydrogen storage bottle, characterized in that: The solid-state hydrogen storage bottle includes a hydrogen storage bottle liner, an insulating heating film and a hydrogen storage bottle shell; the insulating heating film is attached to the hydrogen storage bottle liner, and a heat exchange cavity is formed between the hydrogen storage bottle shell and the hydrogen storage bottle liner. The hydrogen storage bottle shell is provided with a water inlet and a water outlet connected to the cavity.

2. The hydrogen-powered vehicle thermal management system according to claim 1, characterized in that: The insulating heating film is arranged to be attached around the outer edge of the inner container of the hydrogen storage bottle.

3. The hydrogen-powered vehicle thermal management system according to claim 1, characterized in that: A high-voltage connector is provided on the outer shell of the hydrogen storage bottle.

4. The hydrogen-powered vehicle thermal management system according to claim 1, characterized in that: The control method of the system is as follows: before starting at low temperature, the hydrogen bottle is first heated by electric heating using an insulating heating film; the external hot fluid continuously replenishes the hydrogen bottle with the heat required for releasing hydrogen through the heat exchange cavity.

5. The hydrogen-powered vehicle thermal management system according to claim 4, characterized in that: In the control method, When a fuel cell system equipped with a solid-state hydrogen storage bottle is cold-started, the hydrogen storage bottle must be preheated first to reach a certain temperature before hydrogen can be released for starting the fuel cell system; during the preheating stage, an external power supply energizes the insulating heating film through a high-voltage connector, and the insulating heating film converts electrical energy into thermal energy, which is then transferred to the surrounding objects for heating; when the temperature in the hydrogen storage bottle reaches the target temperature, the bottle valve can be opened to provide hydrogen with a certain pressure and flow rate to the external system.

6. The hydrogen-powered vehicle thermal management system according to claim 1, characterized in that: It also includes a fuel cell stack, a water pump, a radiator assembly, a hydrogen bottle valve and an external power supply; the coolant outlet of the fuel cell stack is connected to the water inlet of the solid-state hydrogen storage bottle through the water pump, the water outlet of the solid-state hydrogen storage bottle is connected to the coolant inlet of the fuel cell stack through the radiator assembly, the gas outlet of the solid-state hydrogen storage bottle is connected to the air inlet of the fuel cell stack through the hydrogen bottle valve, and the insulating heating film is connected to the external power supply.

7. The hydrogen-powered vehicle thermal management system according to claim 6, characterized in that: A temperature sensor I is provided between the solid-state hydrogen storage bottle and the radiator assembly.

8. The hydrogen-powered vehicle thermal management system according to claim 7, characterized in that: A temperature sensor II is provided between the radiator assembly and the fuel cell stack.

9. The hydrogen-powered vehicle thermal management system according to claim 8, characterized in that: The control method of the management system is: The system needs to be preheated during the startup phase: By electrifying and heating the insulating heating film built into the solid-state hydrogen storage bottle, while the water pump drives the coolant in the cooling system to circulate, the heat generated by the insulating heating film will be transferred to the solid-state hydrogen storage bottle itself and the coolant flowing through the solid-state hydrogen storage bottle. When the heated coolant flows through the fuel cell stack, it will heat the fuel cell stack; When the fuel cell system is started and operating normally: The fuel cell itself generates heat energy, which is mainly dissipated through circulating cooling water flowing through the radiator; the hydrogen bottle needs to absorb heat when releasing hydrogen. When the temperature of the coolant flowing out of the fuel cell stack reaches a certain condition, the heating of the insulating heating film built into the solid-state hydrogen storage bottle can be stopped, and the heat in the coolant can be used to provide the heat required to release the hydrogen.

10. The hydrogen-powered vehicle thermal management system according to claim 9, characterized in that: In the control method, According to the temperature of the water flowing out of the solid hydrogen storage bottle measured by the temperature sensor I, it is determined that when the solid hydrogen storage bottle reaches the temperature condition for releasing hydrogen, the hydrogen bottle valve is opened to release hydrogen to the fuel cell stack, thereby starting the fuel cell system; After the fuel cell system starts operating normally, the excess heat of the fuel cell is dissipated through heat exchange between the radiator assembly and the air. The temperature measured by temperature sensor II is used to determine whether the water temperature entering the fuel cell stack meets the target requirement, and then the speed of the water pump and the fan in the radiator assembly are adjusted.

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