Hydrogen energy power system and hydrogen energy vehicle
By integrating the hydrogen storage device, heat dissipation device, and fuel cell stack into a single housing and utilizing direct heat transfer through the heat dissipation device, the high cost and low waste heat utilization rate of existing hydrogen storage device heating methods are solved, resulting in higher waste heat utilization rate and longer driving range.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YOUON TECH CO LTD
- Filing Date
- 2024-12-20
- Publication Date
- 2026-04-10
AI Technical Summary
The heating methods used in existing hydrogen fuel cell vehicles for hydrogen storage devices are costly, require electricity, and have low waste heat utilization rates, resulting in limited driving range.
By integrating the hydrogen storage device, heat dissipation device, and fuel cell stack into a single housing, and utilizing direct heat transfer from the heat dissipation device, the waste heat of the fuel cell stack can be fully utilized, eliminating the need for a heating film on the hydrogen storage device, reducing production costs, and avoiding additional power consumption.
It improves waste heat utilization, reduces production costs and operating energy consumption, ensures the driving range of hydrogen fuel cell vehicles, and facilitates installation and maintenance.
Smart Images
Figure CN224104215U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hydrogen energy technology field, specifically relates to a hydrogen energy power system and hydrogen energy car. BACKGROUND
[0002] The hydrogen energy car is a kind of traffic tool using hydrogen as power source, with the advantages of environmental protection, high efficiency, long endurance etc.Most of hydrogen energy cars on the market adopt solid-state hydrogen storage technology to store and release hydrogen in solid form, compared with traditional gaseous hydrogen storage technology, with higher safety and hydrogen storage density.Solid-state hydrogen storage material can adsorb a large amount of hydrogen, thereby realizing higher hydrogen storage density.This means that hydrogen energy car can carry more hydrogen, thereby prolonging the endurance mileage.
[0003] Solid-state hydrogen storage material can release hydrogen by heating or reducing pressure, to provide stable hydrogen supply for hydrogen fuel cell.Most of existing hydrogen energy cars on the market adopt heating method to release hydrogen, and existing hydrogen energy cars mostly set hydrogen storage device and fuel cell stack at different positions of vehicle, for example, set fuel cell stack on riser, set hydrogen storage device in down pipe or under rear seat.Therefore, there are mainly two heating methods for hydrogen storage device, one is to coat heating film outside hydrogen storage device, to ensure the heat required by solid-state hydrogen storage material during hydrogen release by electric heating method, and the other is to heat hydrogen storage device by using waste heat discharged from fuel cell stack, to effectively utilize waste heat, realize energy complementation and reduce system loss.
[0004] The prior art has at least the following disadvantages:
[0005] 1, the electric heating method needs to coat heating film outside hydrogen storage device, which increases production cost, and heating film consumes power during work, increases operating energy consumption of hydrogen energy car and limits the improvement of endurance mileage;
[0006] 2, hydrogen storage device and fuel cell stack are set at a long distance, resulting in large waste heat loss of fuel cell stack, low waste heat utilization rate and difficulty in ensuring the heat required by solid-state hydrogen storage material during hydrogen release. UTILITY MODEL CONTENT
[0007] The utility model aims at overcoming the defects of prior art, and provides a hydrogen energy power system and hydrogen energy car, which can solve the problems of high cost, power consumption and low waste heat utilization rate in the heating method of hydrogen storage device in prior art.
[0008] In order to achieve the above object and other objects, the utility model is through including the following technical solutions realizes: as first aspect, the utility model provides a kind of hydrogen energy power system, including a kind of hydrogen energy power system, including shell, and hydrogen storage device, heat sink and fuel cell stack being arranged from top to bottom in the shell;The heat sink is generated by the heat of the fuel cell stack and is directly blown upwards to heat the hydrogen storage device.
[0009] In an embodiment, the shell includes a first shell and a second shell, the first shell has a cavity accommodating the hydrogen storage device, the heat sink and the fuel cell stack; the second shell is detachably connected with the first shell.
[0010] In an embodiment, the first shell and the second shell are positioned by ribs.
[0011] In an embodiment, the windward surface of the first shell includes an inclined surface, an air inlet is formed on the inclined surface, and the position of the air inlet corresponds to the position of the fuel cell stack; an air outlet is formed on the leeward surface of the shell, and the position of the air outlet corresponds to the position of the hydrogen storage device.
[0012] In an embodiment, the hydrogen storage device is detachably installed in the shell by a hydrogen storage bin; the hydrogen storage bin is horizontally arranged in the shell.
[0013] In an embodiment, the windward surface of the first shell of the shell is further provided with a mounting port and a bin cover, the position of the mounting port corresponds to the position of the hydrogen storage bin; the upper end of the bin cover is arranged above the mounting port by a hinge, and the lower end of the bin cover is buckled below the mounting port.
[0014] In an embodiment, the top of the mounting port is provided with a bottle taking button; the bin cover is built-in with a reader / writer for reading or writing an electronic chip arranged at the bottom of the hydrogen storage device.
[0015] In an embodiment, the outer side of the heat sink is provided with a partition plate, the partition plate and the upper end surface of the fuel cell stack jointly separate the hydrogen storage device and the heat sink from the fuel cell stack into two areas.
[0016] In an embodiment, the shell is further provided with a controller, and the controller is located above the hydrogen storage device.
[0017] As a second aspect, the utility model provides a kind of hydrogen energy vehicles, including frame, and the bottom edge is provided with chamfer;As described in first aspect, the hydrogen energy power system of the shell is installed below the frame;There is gap between the shell and the chamfer.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] 1. This utility model integrates the hydrogen storage device, heat dissipation device, and fuel cell stack into a single housing. It directly utilizes the heat dissipation device for direct heat transfer, which can fully utilize the waste heat generated by the fuel cell stack during operation. Compared with the existing technology that separates the hydrogen storage device and fuel cell stack into two housings, this design reduces the distance for heat transfer from the fuel cell stack to the hydrogen storage device, reduces heat loss during waste heat transfer, and improves waste heat utilization. It can fully guarantee the heat required when the hydrogen storage device releases hydrogen, thus eliminating the need for the heating film originally installed on the hydrogen storage device, reducing production costs, avoiding additional power consumption during the operation of hydrogen fuel cell vehicles, ensuring driving range, and making it more conducive to large-scale promotion.
[0020] 2. The design of the first and second shells of this utility model facilitates the disassembly and assembly of the shells, and makes the installation and subsequent maintenance of the hydrogen energy power system easier.
[0021] 3. The design of the ribs in this utility model can facilitate the positioning of the first and second shells during installation, thus preventing mistaken identity.
[0022] 4. The inclined surface design of this utility model can save on housing material; the design of the air inlet and air outlet can prevent the temperature inside the housing from getting too high and ensure the stable operation of the system.
[0023] 5. This utility model sets the hydrogen storage device horizontally inside the shell through the hydrogen storage chamber, which facilitates the replacement of the hydrogen storage device. When the shell is installed on the hydrogen fuel cell vehicle, the hydrogen storage device is basically parallel to the ground. Compared with the design of tilting the hydrogen storage device in the prior art, it can reduce the impact of riding bumps on the gas output of the hydrogen storage cylinder.
[0024] 6. The design of the installation port and the cover of this utility model allows the cover to automatically open when pressed while the device is closed, which improves the convenience of replacing the hydrogen storage device.
[0025] 7. The design of the bottle removal button in this utility model enables one-click removal of the hydrogen storage device, which is convenient to operate; the design of the reader / writer can easily read and update the real-time hydrogen content information in the hydrogen storage device.
[0026] 8. The design of the partition in this utility model can be used to separate the hydrogen storage device and the heat dissipation device from the fuel cell stack into two areas, forming a heat utilization space in the upper part of the shell, so that the heat in the space does not overflow, and further improving the heat utilization rate.
[0027] 9. The utility model discloses simultaneously still set up hydrogen storage device's top in the electric pile motor two unification controller, cooperate fuel cell electric pile and realize the hydrogen storage device of mutual heating up and down, can make the heat in space more evenly, further improve the utilization efficiency of heat.
[0028] 10. The chamfer design on the frame can prevent the frame and the shell from interfering with each other during installation, and can also prevent scratching the worker's hands; a gap is left between the shell and the frame, so that the overall wiring of the frame can be realized, and the core pulling stroke of the plastic part mold is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 A first angle structure schematic view of a hydrogen energy power system of the utility model installed on a hydrogen energy vehicle is shown.
[0030] Figure 2 A second angle structure schematic view of a hydrogen energy power system of the utility model installed on a hydrogen energy vehicle is shown.
[0031] Figure 3 A structure schematic view of embodiment 1 of the utility model is shown.
[0032] Figure 4 A structure schematic view of embodiment 2 of the utility model is shown.
[0033] Figure 5 A structure schematic view of Figure 1 A sectional view and a partial enlarged view of A-A surface. DETAILED DESCRIPTION
[0034] Please refer to Figures 1-5 The embodiments of the utility model will be described below through specific concrete examples, and those skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification.
[0035] It should be understood that the structures, proportions, sizes, etc. shown in the drawings attached to the specification are only used to cooperate with the content disclosed in the specification for the understanding and reading of those skilled in the art, and do not define the limiting conditions for the implementation of the utility model, so they do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope covered by the technical content disclosed by the utility model.
[0036] Unless otherwise defined, technical terms or scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The same meaning should be read into the words "a" or "an" or "the" appearing in the application and the claims (and derivatives thereof, such as "said", and the like) unless otherwise stated. The terms "including", "comprising" and similar terms are used herein to mean that existence of stated elements or ingredients or components is contemplated, but not to the exclusion of others. The use of numbering and / or letters in the present specification to denote components in the drawings is merely for convenience of an illustration and thus is in no way limiting.
[0037] In order to avoid confusion with the present application, some technical features known in the art are not described. Embodiment
[0038] As shown in Figures 1-3 , the present embodiment provides a hydrogen energy power system 100, which comprises a housing 110, and a hydrogen storage device 120, a heat dissipation device (not shown in the figure, which can refer to the heat dissipation device 140 in Figure 4 , and a fuel cell stack 130 arranged in the housing 110 from top to bottom. The housing 110 is mounted on the frame 200 of a hydrogen energy vehicle, and specifically, can be located below the seat cushion 300. The fuel cell stack 130 is in gas connection with the hydrogen storage device 120. The heat dissipation device (such as a fan) is arranged between the hydrogen storage device 120 and the fuel cell stack 130, and can supply the heat generated by the fuel cell stack 130 upward to heat the hydrogen storage device 120.
[0039] The present embodiment integrates the hydrogen storage device 120, the heat dissipation device, and the fuel cell stack 130 in one housing, and directly blows heat using the heat dissipation device, which can fully utilize the waste heat generated by the operation of the fuel cell stack 130. Compared with the design in the prior art in which the hydrogen storage device and the fuel cell stack are separately mounted in two housings, the present embodiment reduces the distance of heat transfer from the fuel cell stack 130 to the hydrogen storage device 120, reduces the loss in the transmission of waste heat, improves the utilization rate of waste heat, and can completely guarantee the heat required by the hydrogen storage device 120 when hydrogen is released, so that the heating film originally arranged on the hydrogen storage device 120 can be cancelled, the production cost is reduced, the additional power consumption during the operation of the hydrogen energy vehicle is avoided, the cruising range is guaranteed, and large-scale promotion is more beneficial.
[0040] As shown in Figure 2 , Figure 3 , and Figure 5As shown, in order to facilitate the installation and later maintenance of the hydrogen energy power system 100, the shell 110 can be designed as a detachable structure. Specifically, the shell 110 can include a first shell 111 and a second shell 112, the first shell 111 can be fixedly arranged on the chain wheel side of the hydrogen energy vehicle frame by screws, welding or the like, and the first shell 111 has a cavity for accommodating the hydrogen storage device 120, the fuel cell stack 130 and the heat dissipation device 140; the second shell 112 is detachably connected with the first shell 111, for example, the second shell 112 can be fixedly mounted and detached from the first shell 111 by screw connection.
[0041] Further, as shown in Figure 5 In order to facilitate the positioning of the first shell 111 and the second shell 112 during installation, a rib position for preventing mistakes can be provided between the first shell 111 and the second shell 112.
[0042] Further, as shown in Figure 3 and Figure 4 In order to save shell material, the windward side of the first shell 111 can be provided with an inclined surface corresponding to the position of the fuel cell stack 130. At the same time, in order to prevent the temperature inside the shell 110 from being too high, an air inlet 114 can be provided on the inclined surface of the first shell 111, and an air inlet grille is buckled connected on the air inlet 114; an air outlet 115 is provided on the leeward side of the first shell 111, and the air outlet 115 is a heat dissipation hole structure; the setting position of the air inlet 114 corresponds to the setting position of the fuel cell stack 130, and the setting position of the air outlet 115 corresponds to the setting position of the hydrogen storage device 120; when the hydrogen energy vehicle is running, the airflow flows from the front side of the frame to the rear side of the frame, that is, the flowing fresh air enters the air inlet grille of the air inlet 114, the high-temperature gas inside the shell 110 completes the heating of the hydrogen storage device 120 and is discharged from the air outlet 115, thereby realizing the heat dissipation of the shell 110.
[0043] As shown in Figure 2 and Figure 3 In order to facilitate the regular replacement of the hydrogen storage device 120, a horizontally arranged hydrogen storage bin 113 can be fixedly installed on the upper half of the shell 110, and the hydrogen storage device 120 can be detachably installed in the hydrogen storage bin 113, which can ensure that the hydrogen storage bin 113 can stably store the hydrogen storage device 120 in the shell 110.
[0044] Further, the hydrogen storage bin 113 is horizontally arranged in the shell 110, so that when the shell 110 is mounted on a hydrogen energy vehicle, the hydrogen storage device 120 arranged in the hydrogen storage bin 113 is substantially parallel to the ground. Compared with the prior art of arranging the hydrogen storage device 120 in an inclined manner, the design can reduce the influence of riding bumps on the gas outlet of the hydrogen storage bottle.
[0045] Further, the bin cover 1131 of the hydrogen storage bin 113 is arranged on the windward surface of the shell 110 and is used for covering the mounting port 117 arranged on the windward surface. The upper end of the bin cover 1131 is arranged above the mounting port 117 through a hinge, and the lower end of the bin cover 1131 is buckled below the mounting port 117 through a press-type spherical lock. Since the bin cover 1131 needs to be flipped and buckled, if the hinge position is designed on the left and right sides of the bin cover 1131, there is a problem of insufficient space. If the hinge position is arranged at the lower end of the bin cover 1131, the bin cover 1131 buckling position will interfere with the position of the bottle taking button, and the space is also limited. The design of the bin cover 1131 can realize that in the closed state, after the bin cover 1131 is pressed, the bin cover 1131 is automatically lifted, which facilitates the replacement of the hydrogen storage device 120. The bin cover 1131 can be internally provided with a reader / writer for reading or writing an electronic chip arranged at the bottom of the hydrogen storage device 120, which facilitates obtaining the remaining hydrogen amount of the hydrogen storage device 120.
[0046] As shown in Figure 3 In order to maximize the use of the heat generated by the fuel cell stack 130, a partition plate 116 can be arranged outside the heat dissipation device 140. The partition plate 116 is an inclined closed sheet metal or die casting, which can cooperate with the upper end surface of the fuel cell stack 130 and the mounting bracket of the fuel cell stack 130 to form a closed heat utilization space in the upper half of the shell 110, separate the hydrogen storage device 120 and the heat dissipation device from the fuel cell stack 130 into two areas, so that the heat in the space does not overflow, and further improves the waste heat utilization rate of the fuel cell stack 130. Embodiment
[0047] As shown in Figure 4As shown, the embodiment provides a hydrogen energy power system 100, which comprises a shell 110, a hydrogen storage device 120, a fuel cell stack 130, a heat dissipation device 140 and a controller 150. The difference between the embodiment and the above-mentioned embodiment 1 is that the embodiment further comprises the controller 150 arranged in the shell 110. The controller 150 is a stack motor two-in-one controller, which is arranged above the hydrogen storage device 120 and generates heat downward to heat the hydrogen storage device 120. The controller 150 and the fuel cell stack 130 cooperate to heat the hydrogen storage device 120, which can make the heat in the space more uniform and further improve the heat utilization efficiency.
[0048] Specifically, the controller 150 is arranged on the shell of the hydrogen storage bin 113 through a mounting bracket, which ensures that the heat generated by the controller 150 can heat the hydrogen storage device and further improves the heat utilization efficiency.
[0049] In addition, the partition plate 116 in the embodiment is also different from that in the embodiment 1. The partition plate 116 in the embodiment comprises two horizontal or approximately horizontal metal plates or die castings, one end of which is arranged on the mounting bracket of the fuel cell stack 130 and the other end of which is arranged on the shell 110. The partition plate 116 can separate the hydrogen storage device 120 and the heat dissipation device 140 from the fuel cell stack 130 together with the upper end surface of the fuel cell stack 130, so that the heat in the space does not overflow and the waste heat utilization efficiency of the fuel cell stack 130 is further improved. Embodiment
[0050] The embodiment provides a hydrogen energy power system 100, which is different from the embodiment 1 in that the partition plate 116 adopts the design of the embodiment 2. Embodiment
[0051] The embodiment provides a hydrogen energy power system 100, which is different from the embodiment 2 in that the partition plate 116 adopts the design of the embodiment 1. Embodiment
[0052] Please refer to Figure 1 and Figure 2The embodiment also provides a hydrogen energy vehicle, comprising a hydrogen energy power system 100 and a vehicle frame 200; the hydrogen energy power system 100 can be one of the above-mentioned embodiment 1, embodiment 2, embodiment 3 or embodiment 4, and is installed on the vehicle frame 200 and located below a seat cushion 300. A bottom edge of the vehicle frame 200 is provided with a chamfer 201, and there is a gap between the shell 110 and the chamfer 201. The design of the chamfer 201 can prevent the vehicle frame 200 and the shell 110 from interfering with each other when being installed, and can also prevent the worker's hand from being scratched; the gap between the shell 110 and the vehicle frame 200 can realize the overall wiring of the vehicle frame 200 and reduce the core pulling stroke of the plastic part mold.
[0053] Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value. The above-mentioned embodiments only exemplarily illustrate the principle and effects of the utility model and are not used for limiting the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.
Claims
1. A hydrogen energy power system, characterized by comprising: The hydrogen energy power system comprises a shell, a hydrogen storage device, a heat dissipation device and a fuel cell stack arranged in the shell from top to bottom; an air inlet is arranged on the windward surface of the shell, and the position of the air inlet corresponds to the position of the fuel cell stack; an air outlet is arranged on the leeward surface of the shell, and the position of the air outlet corresponds to the position of the hydrogen storage device.
2. The hydrogen energy power system of claim 1, wherein, The shell comprises a first shell and a second shell, the first shell has a cavity for accommodating the hydrogen storage device, the heat dissipation device and the fuel cell stack; and the second shell is detachably connected with the first shell.
3. The hydrogen energy power system of claim 2, wherein, The first shell and the second shell are positioned by ribs.
4. The hydrogen energy power system of claim 2, wherein, The windward surface of the first shell comprises an inclined surface, and the air inlet is arranged on the inclined surface.
5. The hydrogen energy power system of claim 1, wherein, The hydrogen storage device is detachably installed in the shell through a hydrogen storage bin, and the hydrogen storage bin is horizontally arranged in the shell.
6. The hydrogen energy power system of claim 5, wherein, The windward surface of the first shell of the shell further comprises a mounting port and a bin cover, the position of the mounting port corresponds to the position of the hydrogen storage bin, the upper end of the bin cover is arranged above the mounting port through a hinge, and the lower end of the bin cover is buckled below the mounting port.
7. The hydrogen energy power system of claim 6, wherein, The top of the mounting port is provided with a bottle taking button, and the bin cover is internally provided with a reader / writer for reading or writing an electronic chip arranged at the bottom of the hydrogen storage device.
8. The hydrogen energy power system of claim 1, wherein, The outer side of the heat dissipation device is provided with a partition plate, and the partition plate and the upper end surface of the fuel cell stack jointly separate the hydrogen storage device and the heat dissipation device from the fuel cell stack into two areas.
9. The hydrogen energy power system according to any one of claims 1 to 8, characterized by, The shell further comprises a controller, and the controller is arranged above the hydrogen storage device.
10. A hydrogen energy vehicle, characterized by comprising: The hydrogen energy power system comprises The bottom edge of the frame is provided with a chamfer; The shell of the hydrogen energy power system according to any one of claims 1-9 is installed below the frame. There is a gap between the shell and the chamfer.