High-power hydrogen fuel cell with efficient heat dissipation structure

Abstract

The invention relates to the technical field of hydrogen fuel cells, in particular to a high-power hydrogen fuel cell with an efficient heat dissipation structure. Comprising a limiting module, and the limiting module is provided with a plurality of groups of limiting bins capable of installing the hydrogen fuel cell, and a leading-in channel and a leading-out channel capable of leading a cooling medium into the limiting bins and leading the cooling medium out of the limiting bins respectively; the cooling module is fixedly arranged at the top of the limiting module, the output end of the cooling module communicates with the leading-in channel, and the cooling module is used for inputting a cooling medium into the leading-in channel; the heat dissipation module is installed in the limiting module in an embedded mode, and the heat dissipation module is composed of a plurality of sets of heat dissipation frames which are spliced with one another; each heat dissipation frame is provided with a lead-in port and a lead-out port which are used for leading in and leading out a cooling medium; heat energy can be effectively gathered, and dynamic heat dissipation can be conducted according to the use state.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen fuel cells, and in particular to a high-power hydrogen fuel cell with a high-efficiency heat dissipation structure. Background Art

[0002] As an efficient and clean energy conversion device, hydrogen fuel cells are widely used in new energy vehicles, backup power supplies, distributed power generation and other fields. When high-power hydrogen fuel cells are running at high load for a long time, a large amount of heat will be generated. If the heat dissipation is not timely or the heat dissipation structure is not designed properly, it is easy to cause the local temperature of the battery stack to be too high, affecting the electrochemical reaction efficiency of the battery, and may accelerate the attenuation of the electrode catalyst and reduce the service life of the fuel cell. In addition, uneven temperature distribution may also cause imbalance in battery membrane water management, resulting in battery performance degradation or even damage. Therefore, efficient heat dissipation structure design is crucial to improving the overall performance and reliability of high-power hydrogen fuel cells.

[0003] At present, traditional hydrogen fuel cell heat dissipation methods mainly include natural convection heat dissipation, liquid cooling and air cooling. Among them, air cooling is limited by heat dissipation efficiency and is difficult to meet the needs of high-power applications; although liquid cooling has strong heat dissipation capacity, it has problems such as complex system structure, increased weight and high maintenance costs. In addition, most existing liquid cooling systems use a single flow channel or parallel flow channel structure, which makes it difficult to effectively optimize the coolant flow rate and temperature distribution, resulting in insufficient local cooling efficiency and the problem of uneven heat dissipation. Summary of the invention

[0004] In view of the above problems, a high-power hydrogen fuel cell with an efficient heat dissipation structure is provided. By proposing a hydrogen fuel cell that not only has a large heat dissipation space and heat dissipation path but also can dynamically adjust the heat dissipation efficiency according to usage conditions, the technical problems of poor heat dissipation effect, complex structure and single heat dissipation method of existing hydrogen fuel cells are solved.

[0005] To solve the problems of the prior art, the present invention provides a high-power hydrogen fuel cell with an efficient heat dissipation structure, comprising: a limiting module, the limiting module is provided with a plurality of limiting bins capable of installing hydrogen fuel cells and an inlet channel and an outlet channel capable of respectively introducing and exporting a cooling medium into and out of the limiting bins; a cooling module, the cooling module is fixedly arranged on the top of the limiting module, and the output end of the cooling module is connected to the inlet channel for inputting a cooling medium into the inlet channel; a heat dissipation module, the heat dissipation module is embedded in the limiting module, the heat dissipation module is composed of a plurality of heat dissipation frames spliced ​​with each other; and each heat dissipation frame is provided with an inlet port and an outlet port capable of introducing and exporting a cooling medium, and when a plurality of heat dissipation modules are spliced, the inlet port and the outlet port are arranged in series.

[0006] Preferably, the heat dissipation rack includes a heat absorbing chamber capable of confining the hydrogen fuel cell and a heat insulating chamber centrally wrapped outside the heat absorbing chamber; the inner diameter of the heat insulating chamber is larger than the outer diameter of the heat absorbing chamber, and a rectangular cavity is formed between the heat absorbing chamber and the heat insulating chamber, and the rectangular cavity is used for the transmission of cooling medium.

[0007] Preferably, the heat dissipation rack is also provided with a guide bar capable of guiding the transmission direction of the cooling medium; the guide bar is fixedly arranged on the outer wall of the heat absorbing bin and the far end is fixedly connected to the inner wall of the heat insulating bin; a plurality of groups of guide bars are equidistantly arranged along the long side direction of the heat absorbing bin; the space of the rectangular cavity is divided into a plurality of groups of chambers capable of independently guiding the cooling medium by the plurality of groups of guide bars.

[0008] Preferably, the outer wall of the heat absorption chamber is also vertically and densely provided with multiple groups of fins.

[0009] Preferably, the thermal insulation bin is also provided with an upper transmission bar and a lower transmission bar capable of introducing the cooling medium into the rectangular cavity; two upper transmission bars are provided, and the two upper transmission bars are relatively parallelly arranged on the upper surface of the thermal insulation bin along the long side direction of the thermal insulation bin and are connected with the rectangular cavity; a first through hole is also penetrated through the surface of the upper transmission bar, and the first through hole constitutes an inlet; two lower transmission bars are provided, and the two lower transmission bars are horizontally arranged on the lower surface of the thermal insulation bin relative to the two upper transmission bars and are connected with the rectangular cavity; a second through hole is also penetrated through the surface of the lower transmission bar, and the second through hole constitutes an outlet.

[0010] Preferably, the upper surface of the insulation bin is also fixedly provided with an upper buckle connection portion capable of limiting and correcting the splicing position between multiple groups of insulation bins, and a lower buckle connection portion fixedly provided horizontally on the lower surface of the insulation bin relative to the upper buckle connection portion.

[0011] Preferably, the limit module includes a main limit frame, a secondary limit frame, an upper guide part and a lower guide part; the main limit frame is arranged in a cross shape, and the inlet channel is horizontally penetrated and opened on the main limit frame; the outlet channel is longitudinally penetrated and opened on the main limit frame; the secondary limit frame is provided with multiple groups, and multiple groups of secondary limit frames are centrally fixed outside the main limit frame and are enclosed with the main limit frame to form multiple groups of limit bins; the upper and lower surfaces of the secondary limit frame are also respectively penetrated with third through holes and fourth through holes that are connected to the upper transmission strips and the lower transmission strips respectively; the upper guide part is horizontally fixed on the upper surface of the secondary limit frame, and the upper guide part is used to guide multiple groups of the third through holes to be connected with the inlet channel; the lower guide part is horizontally fixed on the lower surface of the secondary limit frame, and the lower guide part is used to guide multiple groups of the fourth through holes to be connected with the outlet channel.

[0012] Preferably, the upper guide portion is a rectangular plate and a plurality of groups of first grooves corresponding to the plurality of groups of third through holes are formed on the lower surface, and the plurality of groups of first grooves are arranged in series and connected to the introduction channel.

[0013] Preferably, the lower guide portion is a rectangular plate and has an upper surface provided with a plurality of groups of second grooves corresponding to the plurality of groups of fourth through holes one by one, and the plurality of groups of second grooves are arranged in series and connected to the outlet channel.

[0014] Preferably, the cooling module consists of a transmission unit and a guide unit that can be connected to the output end of the transmission unit; the transmission unit is fixedly arranged at the top of the limiting module to circulate the cooling medium; the guide unit is fixedly arranged at the driving end of the transmission unit to guide the cooling medium to the inlet channel.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention optimizes the absorption, temporary storage and conduction of heat through the coordination of the heat absorption chamber, the heat insulation chamber and the fins, so that the heat generated during the operation of the fuel cell can be quickly absorbed and evenly distributed in the rectangular cavity, avoiding local overheating problems and improving the overall heat dissipation efficiency.

[0016] 2. The present invention realizes how to accurately guide the cooling medium through the cooperation of the upper guide part and the lower guide part, so that it can be evenly distributed after entering multiple groups of limit bins, and achieve efficient heat exchange when passing through the heat dissipation rack. In addition, the cooling medium can be quickly gathered and introduced into the export and import channels when discharged, ensuring the stability and continuity of the cooling process and improving the overall heat exchange performance of the system.

[0017] 3. The present invention adopts the structure of upper buckle joint and lower buckle joint to enable multiple groups of heat dissipation racks to be quickly positioned and firmly spliced, ensuring the modular expansion capability of the heat dissipation system. After splicing, the upper transmission strips and the lower transmission strips can be precisely docked to form a through cooling channel, ensuring that the cooling medium flows smoothly between multiple heat dissipation units, thereby improving the overall heat dissipation capacity of the fuel cell.

[0018] 4. The present invention divides the interior of the rectangular cavity into multiple independent circumferential cavities through multiple groups of guide strips, thereby achieving multi-directional uniform distribution of the cooling medium, allowing it to pass through the heat dissipation frame in a directional and high-speed manner, ensuring that each working unit of the hydrogen fuel cell obtains effective heat dissipation and avoiding performance degradation caused by excessive temperature differences. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of a high-power hydrogen fuel cell with an efficient heat dissipation structure.

[0020] Figure 2It is a partially exploded perspective diagram of the structure of a high-power hydrogen fuel cell with an efficient heat dissipation structure.

[0021] Figure 3 A side view of a high-power hydrogen fuel cell with an efficient heat dissipation structure Figure 1 .

[0022] Figure 4 yes Figure 3 Cross-sectional view at AA.

[0023] Figure 5 yes Figure 4 A partial enlarged view of point B.

[0024] Figure 6 A side view of a high-power hydrogen fuel cell with an efficient heat dissipation structure Figure 2 .

[0025] Figure 7 It is an exploded perspective view of a high-power hydrogen fuel cell with an efficient heat dissipation structure.

[0026] Figure 8 It is a three-dimensional diagram of the partial structure of the heat dissipation module in a high-power hydrogen fuel cell with an efficient heat dissipation structure.

[0027] Fig. 9 It is a side view of a heat sink in a high-power hydrogen fuel cell with an efficient heat dissipation structure.

[0028] Fig.10 The present invention is a stereoscopic diagram of a secondary limit frame in a high-power hydrogen fuel cell with an efficient heat dissipation structure.

[0029] The numbers in the figure are: 1. Limiting module; 11. Limiting bin; 12. Import channel; 13. Export channel; 14. Main limiting frame; 15. Secondary limiting frame; 151. Third through hole; 152. Fourth through hole; 16. Upper guide; 161. First groove; 162. First pipeline; 163. Second pipeline; 17. Lower guide; 171. Second groove; 2. Cooling module; 21. Transmission unit; 22. Guiding unit; 3. Heat dissipation module; 31. Heat dissipation frame; 311. Inlet; 312. Outlet; 32. Heat absorption chamber; 321. Fins; 33. Heat insulation chamber; 331. Upper transmission strips; 332. Lower transmission strips; 333. Upper buckling part; 334. Lower buckling part; 34. Guide strips. DETAILED DESCRIPTION

[0030] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] See also Figures 1 to 10 As shown: A high-power hydrogen fuel cell with an efficient heat dissipation structure, comprising: a limiting module 1, the limiting module 1 is provided with a plurality of limiting bins 11 capable of installing hydrogen fuel cells and an inlet channel 12 and an outlet channel 13 capable of respectively introducing and exporting a cooling medium into and out of the limiting bins 11; a cooling module 2, the cooling module 2 is fixedly arranged on the top of the limiting module 1, and the output end of the cooling module 2 is connected to the inlet channel 12 for inputting a cooling medium into the inlet channel 12; a heat dissipation module 3, the heat dissipation module 3 is embeddedly installed in the limiting module 1, the heat dissipation module 3 is composed of a plurality of heat dissipation frames 31 spliced ​​with each other; and each heat dissipation frame 31 is provided with an inlet port 311 and an outlet port 312 capable of introducing and exporting a cooling medium, and when a plurality of heat dissipation modules 3 are spliced, the inlet port 311 and the outlet port 312 are arranged in series.

[0032] When it is necessary to dissipate heat for the hydrogen fuel cell during use, firstly connect an external power supply to drive the cooling module 2 to operate, and the cooling module 2 starts to deliver cooling medium to the heat dissipation module 3, and the transmission speed and medium temperature of the cooling medium can be dynamically adjusted according to the current temperature of the hydrogen fuel cell; similarly, by real-time monitoring the temperature of the hydrogen fuel cell and the cooling medium temperature finally derived, the transmission speed and cooling temperature of the cooling medium can also be dynamically adjusted according to the detection results; and by performing temperature detection on the cooling medium finally derived, the cooling efficiency and cooling effect of the cooling medium on the hydrogen fuel cell can also be intuitively fed back. When the cooling medium is transmitted toward the heat dissipation module 3 via the cooling module 2, it is first introduced into the corresponding limit bin 11 along the introduction channel 12 of the limit bin 1, and after passing through the limit bin 11, it enters the heat dissipation frame 31 embedded in the limit bin 11. Subsequently, the cooling medium is evenly distributed to the inside of the heat dissipation frame 31 through the introduction port 311 provided on the heat dissipation frame 31, and fully contacts the hydrogen fuel cell components fixedly installed therein, so as to take away the heat generated during the operation of the hydrogen fuel cell, thereby achieving efficient heat dissipation and maintaining the stable operation of the hydrogen fuel cell.

[0033] In actual use, the flow path of the cooling medium is composed of multiple groups of heat sinks 31 connected in series, and the cooling stroke of the inlet 311 is precisely controlled according to the number and arrangement of the heat sinks 31 to optimize the cooling effect. After the cooling medium completes the heat absorption of the hydrogen fuel cell, it is discharged through the outlet 312 in the heat sink 31, and finally enters the outlet channel 13 of the limit module 1, realizing the recycling and reuse of the cooling medium. Through this circulation conduction method, the cooling medium can continuously flow through the heat dissipation system, ensuring that the hydrogen fuel cell is in a stable temperature range for a long time, effectively preventing overheating, and improving the working efficiency and service life of the fuel hydrogen fuel cell.

[0034] By optimizing the conduction path of the cooling medium, the cooling medium can enter the heat sink 31 step by step, and efficiently remove heat while flowing through the hydrogen fuel cell assembly, thereby achieving precise heat dissipation. The inlet channel 12 of the limit module 1 is combined with the outlet channel 13 to ensure that the cooling medium can circulate continuously, avoid local overtemperature or uneven cooling, and improve the heat dissipation efficiency of the hydrogen fuel cell. At the same time, the structure can effectively control the flow direction and rate of the cooling medium, optimize the overall performance of the heat dissipation system, extend the service life of the hydrogen fuel cell, and improve the stability and reliability of the hydrogen fuel cell under high load conditions.

[0035] See also Fig. 9 As shown: the heat dissipation frame 31 includes a heat absorption chamber 32 capable of confining the hydrogen fuel cell and a heat insulation chamber 33 centrally wrapped outside the heat absorption chamber 32; the inner diameter of the heat insulation chamber 33 is larger than the outer diameter of the heat absorption chamber 32, and a rectangular cavity is formed between the heat absorption chamber 32, and the rectangular cavity is used for the transmission of cooling medium.

[0036] The heat absorbing chamber 32 and the heat insulating chamber 33 are both hollow rectangular shells with openings at both ends; the heat absorbing chamber 32 is matched with the outer diameter of the hydrogen fuel cell to limit and fix the hydrogen fuel cell.

[0037] When the hydrogen fuel cell generates heat in a continuous working state, the heat is first absorbed in real time by the heat absorption chamber 32, and then quickly introduced into the rectangular cavity for temporary storage. The rectangular cavity serves as an intermediate thermal buffer zone to evenly distribute the heat inside and avoid local overheating. When the hydrogen fuel cell needs to dissipate heat, the cooling system is started, and the cooling medium is accurately introduced into the rectangular cavity through the flow channel and fully contacts the heat energy stored therein. At this time, the heat temporarily stored in the rectangular cavity is efficiently conducted by the cooling medium and carried away with the flowing cooling medium, achieving rapid heat dissipation and ensuring that the hydrogen fuel cell maintains a stable temperature when operating at high load.

[0038] See also Figure 8 and Fig. 9 As shown: the heat dissipation frame 31 is also provided with a guide bar 34 capable of guiding the transmission direction of the cooling medium; the guide bar 34 is fixedly arranged on the outer wall of the heat absorbing chamber 32 and the far end is fixedly connected to the inner wall of the heat insulating chamber 33; a plurality of guide bars 34 are equidistantly arranged along the long side direction of the heat absorbing chamber 32; the space of the rectangular cavity is divided into a plurality of chambers capable of independently guiding the cooling medium by the plurality of guide bars 34.

[0039] By setting a plurality of guide bars 34 arranged along the long side direction of the heat absorbing chamber 32, the internal space of the rectangular cavity is divided into a plurality of independent chambers, each of which can guide the cooling medium individually, so that a controlled flow path is formed in the rectangular cavity. After the cooling medium enters the rectangular cavity, it flows in an orderly manner along the chamber under the action of the guide bars 34, passes through the heat dissipation frame 31 in a directional and high-speed manner, and performs efficient heat exchange with the battery assembly. Not only does it optimize the flow trajectory of the cooling medium, avoiding turbulence or retention of the cooling medium in the cavity, but it also improves the heat exchange efficiency of the cooling medium, so that it can take away the heat generated by the battery more quickly and evenly, thereby ensuring that the battery maintains a stable operating temperature when operating at high power.

[0040] See also Figure 5 As shown, the outer wall of the heat absorbing chamber 32 is also vertically and densely provided with multiple groups of fins 321.

[0041] A plurality of groups of fins 321 with high thermal conductivity are vertically and densely arranged on the outer wall of the heat absorbing bin 32. These fins 321 can significantly increase the heat dissipation area of ​​the heat absorbing bin 32, thereby improving the absorption efficiency of the heat generated during the operation of the fuel cell. When the fuel cell releases heat energy, the fins 321 first quickly capture the heat on the outer wall of the heat absorbing bin 32, and through an efficient heat conduction mechanism, quickly transfer the absorbed heat to the inside of the rectangular cavity, so that the heat is evenly distributed and temporarily stored in the cavity. Subsequently, when the cooling medium flows through the rectangular cavity, it fully contacts the stored heat energy and quickly takes it away, thereby achieving efficient cooling of the fuel cell and ensuring its temperature stability under high-load operation.

[0042] See also Figure 8 As shown: the insulation bin 33 is also provided with an upper transmission bar 331 and a lower transmission bar 332 capable of introducing the cooling medium into the rectangular cavity; two upper transmission bars 331 are provided, and the two upper transmission bars 331 are relatively parallelly arranged on the upper surface of the insulation bin 33 along the long side direction of the insulation bin 33 and are connected with the rectangular cavity; a first through hole is also penetrated through the surface of the upper transmission bar 331, and the first through hole constitutes the introduction port 311; two lower transmission bars 332 are provided, and the two lower transmission bars 332 are horizontally arranged on the lower surface of the insulation bin 33 relative to the two upper transmission bars 331 and are connected with the rectangular cavity; a second through hole is also penetrated through the surface of the lower transmission bar 332, and the second through hole constitutes the outlet 312.

[0043] The upper transmission bar 331 is used to uniformly transport the cooling medium to multiple groups of chambers synchronously to ensure efficient heat dissipation of the hydrogen fuel cell. When the cooling medium is output by the cooling module 2 and transmitted by the limit module 1, it is introduced toward the heat dissipation frame 31 through the introduction channel 12. At this time, the cooling medium first enters the upper transmission bar 331. The cooling medium is uniformly guided and transmitted to multiple groups of chambers through the upper transmission bar 331. Through this fluid distribution mechanism, the cooling medium can fully cover the heat dissipation area, improve the heat exchange efficiency, and minimize the local temperature gradient, ensuring that the fuel cell maintains a stable operating temperature during long-term operation.

[0044] See also Fig. 9 As shown: the upper surface of the insulation bin 33 is also fixedly provided with an upper buckle part 333 which can limit and correct the splicing position between multiple groups of insulation bins 33 and a lower buckle part 334 which is horizontally fixedly provided on the lower surface of the insulation bin 33 relative to the upper buckle part 333.

[0045] The upper buckle part 333 is a convex bar fixedly arranged on the upper surface of the heat insulation bin 33 in parallel along the long side direction of the heat insulation bin 33, and the lower buckle part 334 is a concave bar fixedly arranged on the lower surface of the heat insulation bin 33 in parallel along the long side direction of the heat insulation bin 33. When multiple heat dissipation racks 31 loaded with hydrogen fuel cells are sequentially spliced ​​and stacked according to the use requirements, the convex bar on the upper surface of the heat insulation bin 33 and the concave bar on the lower surface cooperate with each other, and the multiple groups of heat dissipation racks 31 can be accurately positioned quickly to ensure the installation accuracy and angle consistency during the splicing process. At the same time, when multiple groups of heat dissipation racks 31 are stacked and spliced ​​in sequence, the upper transmission row bar 331 and the lower transmission row bar 332 fixedly installed on the upper and lower surfaces of the heat insulation bin 33 will also be docked accordingly, thereby forming a complete and continuous cooling channel, so that the rectangular cavity inside the heat dissipation rack 31 can be connected in series. Through this design, the cooling medium can flow smoothly between multiple mutually spliced ​​heat dissipation racks 31, and continuously exchange heat, thereby improving the overall heat dissipation efficiency.

[0046] See also Figure 7 and Fig.10As shown: the limit module 1 includes a main limit frame 14, a secondary limit frame 15, an upper guide portion 16 and a lower guide portion 17; the main limit frame 14 is arranged in a cross shape, and the introduction channel 12 is horizontally penetrated and opened on the main limit frame 14; the export channel 13 is longitudinally penetrated and opened on the main limit frame 14; the secondary limit frame 15 is provided with multiple groups, and multiple groups of secondary limit frames 15 are centrally fixedly arranged outside the main limit frame 14 and enclosed with the main limit frame 14 to form multiple groups of limit bins 11; the upper surface of the secondary limit frame 15 The upper and lower surfaces are also respectively penetrated with a third through hole 151 and a fourth through hole 152 which are connected to the upper transmission row bar 331 and the lower transmission row bar 332 respectively; the upper guide portion 16 is horizontally fixedly arranged on the upper surface of the auxiliary limit frame 15, and the upper guide portion 16 is used to guide multiple groups of the third through holes 151 to be connected to the introduction channel 12; the lower guide portion 17 is horizontally fixedly arranged on the lower surface of the auxiliary limit frame 15, and the lower guide portion 17 is used to guide multiple groups of the fourth through holes 152 to be connected to the outlet channel 13.

[0047] When the cooling medium is transmitted to the limiting module 1 through the cooling module 2, in order to ensure that the cooling medium can be uniformly and synchronously transported to multiple groups of limiting bins 11, so as to achieve efficient heat dissipation of multiple groups of heat sinks 31 spliced ​​with each other, when the cooling medium flows through and is transmitted to the introduction channel 12, the flow direction is precisely controlled by the upper guide part 16, so that the cooling medium can be synchronously connected to multiple groups of limiting bins 11, and evenly distributed to the inside of each limiting bin 11 through the third through hole 151, so as to ensure that the heat sink 31 in the limiting bin 11 can fully perform heat exchange and achieve efficient cooling. When the cooling medium carrying heat completes the heat exchange, it flows out through the lower transmission row bar 332. At this time, the cooling medium is accurately introduced into the outlet channel 13 under the action of the lower guide part 17, and finally discharged to the circulation loop of the system, so as to achieve continuous circulation transmission of the cooling medium, thereby ensuring the temperature stability of the fuel cell under long-term operation.

[0048] See also Figure 7 As shown, the upper guide portion 16 is a rectangular plate and has a plurality of first grooves 161 on its lower surface corresponding to the plurality of third through holes 151 . The plurality of first grooves 161 are arranged in series and connected to the introduction channel 12 .

[0049] The upper surface of the upper guide portion 16 is also vertically provided with a first pipeline 162 and a second pipeline 163 which can respectively introduce the cooling medium toward the inlet channel 12 and the outlet channel 13 .

[0050] Since the lower surface of the upper guide portion 16 is provided with multiple groups of first grooves 161, and the multiple groups of first grooves 161 are arranged one by one with the multiple groups of third through holes 151, and are connected in series to form a continuous guide channel, and are connected with the introduction channel 12. Based on this, when the cooling module 2 delivers the cooling medium to the introduction channel 12 through the first pipeline 162, the cooling medium will be evenly diverted and introduced into the multiple groups of limiting bins 11 respectively under the guidance of the multiple groups of first grooves 161 arranged on the lower surface of the upper guide portion 16. After entering the limiting bin 11, the cooling medium can accurately flow to the introduction port 311 of the heat sink 31, and perform efficient heat exchange with the hydrogen fuel cell assembly inside the heat sink 31, thereby achieving stable heat dissipation of the fuel cell, ensuring that it maintains a reasonable temperature during operation, and improving the overall heat dissipation efficiency of the system.

[0051] See also Figure 2 As shown, the lower guide portion 17 is a rectangular plate and has a plurality of groups of second grooves 171 on its upper surface corresponding to the plurality of groups of fourth through holes 152 . The plurality of groups of second grooves 171 are arranged in series and connected to the outlet channel 13 .

[0052] Since the lower surface of the lower guide portion 17 is provided with multiple groups of second grooves 171, and the multiple groups of second grooves 171 are opened one by one with the multiple groups of fourth through holes 152, and are connected in series to form a continuous flow guide channel, and are connected to the outlet channel 13 at the same time. Based on this, after the cooling medium carrying heat is discharged through the outlet 312 of the heat dissipation frame 31, it will quickly converge to the outlet channel 13 under the guidance of the lower guide portion 17, avoiding the disordered flow or retention of the cooling medium, so that the heat can be efficiently transferred and discharged in time. Finally, the cooling medium carrying heat is discharged through the outlet channel 13 and enters the circulating cooling system, realizing continuous circulation transmission of the cooling medium, and ensuring the heat dissipation efficiency and temperature stability of the hydrogen fuel cell.

[0053] See also Figure 1 and Figure 4 As shown: the cooling module 2 is composed of a transmission unit 21 and a guide unit 22 that can be connected to the output end of the transmission unit 21; the transmission unit 21 is fixedly arranged on the top of the limiting module 1 to circulate the cooling medium; the guide unit 22 is fixedly arranged on the driving end of the transmission unit 21 to guide the cooling medium to be transmitted into the inlet channel 12.

[0054] The transmission unit 21 is specifically a circulation pump, and the guide unit 22 is specifically a transmission pipeline, both of which are prior arts and are not described here in detail. They are only shown in the figure for reference. Two circulation pumps are provided, one is connected to the first pipeline 162 to drive the cooling medium into the inlet channel 12, so as to achieve efficient cooling of the battery, and the other circulation pump is connected to the second pipeline 163 to drive the cooling medium carrying heat in the outlet channel 13, so as to quickly export it.

[0055] When it is necessary to deliver cooling medium to the heat dissipation module 3 to efficiently dissipate heat for the hydrogen fuel cell, first connect an external power supply to drive the transmission unit 21 to operate. After the transmission unit 21 is started, the cooling medium is absorbed. The cooling medium can be a low-temperature gas source or a normal temperature water source, which is selected according to specific heat dissipation requirements. Subsequently, the cooling medium is directionally transported through the guide unit 22 under the action of the transmission unit 21, so that it is accurately introduced into the heat dissipation frame 31 along a preset flow path. After the cooling medium enters the heat dissipation frame 31, it fully exchanges heat with the hydrogen fuel cell components fixedly installed inside it, effectively taking away the heat generated during the operation of the hydrogen fuel cell, thereby reducing the temperature of the hydrogen fuel cell and maintaining its stable working state.

[0056] The present invention can not only effectively gather thermal energy but also dynamically dissipate heat according to the usage status.

[0057] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A high-power hydrogen fuel cell with an efficient heat dissipation structure, characterized in that: include: A limiting module, wherein the limiting module is provided with a plurality of limiting bins capable of installing hydrogen fuel cells and an inlet channel and an outlet channel capable of respectively introducing and outlet cooling media into and from the limiting bins; A cooling module, wherein the cooling module is fixedly disposed on the top of the limiting module, and an output end of the cooling module is communicated with the introduction channel for inputting a cooling medium into the introduction channel; The heat dissipation module is embedded in the limiting module, and the heat dissipation module is composed of a plurality of heat dissipation frames spliced ​​with each other; and each heat dissipation frame is provided with an inlet and an outlet for importing and exporting cooling medium, and when a plurality of heat dissipation modules are spliced, the inlet and the outlet are arranged in series.

2. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 1, characterized in that: The heat dissipation frame includes a heat absorbing chamber capable of confining the hydrogen fuel cell and a heat insulating chamber centrally wrapped outside the heat absorbing chamber; the inner diameter of the heat insulating chamber is larger than the outer diameter of the heat absorbing chamber, and a rectangular cavity is formed between the heat insulating chamber and the heat absorbing chamber, and the rectangular cavity is used for the transmission of cooling medium.

3. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 2, characterized in that: The heat sink is also provided with a guide bar capable of guiding the transmission direction of the cooling medium; The guide strip is fixedly arranged on the outer wall of the heat absorbing chamber and the far end is fixedly connected to the inner wall of the heat insulating chamber; a plurality of guide strips are arranged in equal intervals along the long side direction of the heat absorbing chamber; The space of the rectangular cavity is divided into a plurality of chambers capable of independently guiding the cooling medium by a plurality of guide bars.

4. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 2, characterized in that: The outer wall of the heat absorbing chamber is also vertically and densely provided with a plurality of groups of fins.

5. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 3, characterized in that: The heat-insulating chamber is also provided with upper transmission bars and lower transmission bars capable of introducing the cooling medium into the rectangular cavity; The upper transmission row bars are provided with two, and the two upper transmission row bars are arranged relatively parallel to the upper surface of the heat insulation bin along the long side direction of the heat insulation bin and are connected with the rectangular cavity; the surface of the upper transmission row bar is also penetrated by a first through hole, and the first through hole constitutes an inlet; There are two lower transmission bars, which are horizontally arranged on the lower surface of the insulation bin relative to the two upper transmission bars and connected with the rectangular cavity; a second through hole is also opened through the surface of the lower transmission bar, and the second through hole constitutes the guide outlet.

6. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 3, characterized in that: The upper surface of the heat insulation bin is also fixedly provided with an upper buckle connection portion capable of limiting and correcting the splicing positions between multiple groups of heat insulation bins, and a lower buckle connection portion fixedly provided horizontally on the lower surface of the heat insulation bin relative to the upper buckle connection portion.

7. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 1, characterized in that: The limit module includes a main limit frame, a secondary limit frame, an upper guide part and a lower guide part; The main limit frame is arranged in a cross shape, the introduction channel is opened on the main limit frame in a transverse direction, and the outlet channel is opened on the main limit frame in a longitudinal direction. The auxiliary limit frame is provided with multiple groups, and the multiple groups of auxiliary limit frames are centrally fixedly arranged outside the main limit frame and enclosed with the main limit frame to form multiple groups of limit bins; the upper surface and the lower surface of the auxiliary limit frame are also respectively penetrated with a third through hole and a fourth through hole respectively connected with the upper transmission row bar and the lower transmission row bar; The upper guide portion is horizontally fixedly disposed on the upper surface of the auxiliary limit frame, and the upper guide portion is used to guide the plurality of groups of the third through holes to be connected to the introduction channel; The lower guide portion is horizontally fixedly disposed on the lower surface of the auxiliary limit frame, and the lower guide portion is used to guide the plurality of groups of the fourth through holes to be connected to the outlet channel.

8. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 7, characterized in that: The upper guide portion is a rectangular plate and has a lower surface provided with a plurality of first grooves corresponding to the plurality of third through holes. The plurality of first grooves are arranged in series and connected to the introduction channel.

9. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 8, characterized in that: The lower guide portion is a rectangular plate and has a plurality of groups of second grooves on its upper surface corresponding to the plurality of groups of fourth through holes. The plurality of groups of second grooves are arranged in series and connected to the outlet channel.

10. A high-power hydrogen fuel cell with an efficient heat dissipation structure according to claim 1, characterized in that: The cooling module is composed of a transmission unit and a guide unit capable of communicating with an output end of the transmission unit; The transmission unit is fixedly arranged on the top of the limiting module to circulate and transmit the cooling medium; The guide unit is fixedly arranged at the driving end of the transmission unit, and is used for guiding the cooling medium to be transmitted into the introduction channel.

Images