An electric energy converter of a hydrogen fuel cell with a heat dissipation structure

Abstract

The utility model discloses a kind of electric energy converters of hydrogen fuel cell with heat dissipation structure, it is related to electric energy converter technical field, and include: converter housing, multiple heat dissipation air ducts are set in the both sides of converter housing;Heat dissipation device one, it is provided with two, and is respectively installed in the both sides of converter housing, two converter housings play the role of heat dissipation and mutual cleaning when starting simultaneously or respectively;Heat dissipation device two, it is installed on converter housing, and the airflow generated by heat dissipation device one is guided to accelerate heat dissipation;The utility model is installed in the both sides of converter housing by setting two heat dissipation device one, cooperate the heat dissipation air duct on converter housing to form convection airflow, can quickly bring out the heat in the inside of converter, simultaneously, two heat dissipation device one can realize the function of mutual cleaning by reverse operation, avoid heat dissipation device one jamming to affect heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of power converter technology, and in particular to a power converter for a hydrogen fuel cell with a heat dissipation structure. Background Technology

[0002] Hydrogen fuel cells, as a highly efficient and clean energy conversion device, have been widely used in new energy vehicles, distributed power generation, and other fields. The power converter, as a core component of the hydrogen fuel cell system, is responsible for converting the direct current output from the fuel cell into electrical energy that meets the needs of different electrical devices. Its performance directly affects the stability and safety of the entire system.

[0003] During the operation of a hydrogen fuel cell power converter, since the power conversion efficiency cannot reach 100%, some electrical energy will be released as heat, causing the internal temperature of the converter to rise. If this heat cannot be dissipated in a timely and effective manner, the internal components of the converter will be in a high-temperature environment for a long time, which will not only reduce the conversion efficiency, but also accelerate the aging of components, shorten their service life, and even cause safety hazards.

[0004] 1. The heat dissipation area is limited and the heat dissipation efficiency is low, making it difficult to meet the heat dissipation requirements of high-power converters when operating at full load, and the problem of insufficient heat dissipation is likely to occur.

[0005] 2. After long-term operation, a large amount of dust and impurities will accumulate on the filter screen of the cooling fan. If it is not cleaned in time, it will reduce the air intake and further reduce the heat dissipation effect. Traditional cleaning methods require manual disassembly of the fan, which is cumbersome and affects the normal operation of the equipment.

[0006] 3. The working environment of hydrogen fuel cell systems is often quite complex, and the air may contain a lot of moisture. When humid air enters the converter, condensation can easily form on the surface of electronic components, causing problems such as short circuits and decreased insulation performance.

[0007] Therefore, it is necessary to invent a power converter for a hydrogen fuel cell with a heat dissipation structure to solve the above problems. Utility Model Content

[0008] The purpose of this invention is to provide a power converter for a hydrogen fuel cell with a heat dissipation structure, in order to solve the problem mentioned in the background art that after the cooling fan has been running for a long time, a large amount of dust and impurities will accumulate on its filter screen. If it is not cleaned in time, it will lead to a reduction in air intake and further reduce the heat dissipation effect. Traditional cleaning methods require manual disassembly of the fan, which is cumbersome and affects the normal operation of the equipment.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a power converter for a hydrogen fuel cell with a heat dissipation structure, comprising: The converter housing has multiple heat dissipation ducts on both sides. There is a heat dissipation device 1, which has two parts and is installed on both sides of the converter housing respectively. When the two converter housings are started at the same time or separately, they play the role of heat dissipation and mutual cleaning. Heat dissipation device 2 is installed on the converter housing and guides the airflow generated by heat dissipation device 1 to accelerate heat dissipation.

[0010] Optionally, the heat dissipation device includes: frame; The filter screen is installed inside the frame; The cooling fan is installed inside the frame and located between the filter and the converter housing.

[0011] Optionally, the frame is provided with a plug-in channel, and a desiccant holder is plugged into the plug-in channel. The desiccant holder and the plug-in channel are equipped with positioning structures, and the frame and the converter housing are equipped with receiving devices for locking the frame.

[0012] Optionally, the desiccant holder includes: The mounting plate is inserted into the insertion channel; Storage space, located inside the shelves, is used to store desiccants; Handles are installed on the outside of the shelf and are used to pull out the shelf.

[0013] Optionally, the outer surface of the frame plate is covered with a first sealing rubber gasket that makes sealing contact with the inner wall of the insertion channel.

[0014] Optionally, the positioning structure includes: A spherical groove is formed on the inner wall of the insertion channel; The mounting groove is formed on the frame plate and corresponds to the spherical groove; The positioning post slides into the interior of the mounting groove and, together with the spherical groove, positions the frame plate. A compression spring is installed between the positioning post and the inner wall of the mounting groove.

[0015] Optionally, the receiving device includes: Positioning blocks are installed on the outside of the converter housing; The L-shaped positioning plate is installed on the outside of the frame and inserted into the inside of the positioning block; Bolts, which pass through the L-shaped positioning plate and are installed inside the positioning block, fix the positioning block to the L-shaped positioning plate.

[0016] Optionally, the top of the converter housing is equipped with an opening and closing door, and the converter housing is provided with an interface.

[0017] Optionally, the second heat dissipation device includes: Multiple heat dissipation fins are provided and installed on the opening and closing door; Multiple sets of heat dissipation vents are provided on the opening and closing door and are located between two adjacent heat dissipation fins.

[0018] Optionally, a second sealing rubber is bonded to the frame to make sealing contact with the converter housing.

[0019] The technical effects and advantages of this utility model are as follows: 1. This utility model sets up two heat dissipation devices, which are respectively installed on both sides of the converter housing. Together with the heat dissipation duct on the converter housing, they form a convective airflow, which can quickly remove the heat inside the converter. At the same time, the two heat dissipation devices can be rotated in opposite directions to achieve a mutual cleaning function, so as to avoid blockage of the heat dissipation devices and affect heat dissipation.

[0020] 2. The second heat dissipation device of this utility model increases the heat dissipation area and can also guide the airflow generated by the first heat dissipation device, further improving the heat dissipation efficiency. The dual heat dissipation structure effectively solves the problem of insufficient heat dissipation of existing converters.

[0021] 3. The desiccant in the desiccant holder of this utility model can absorb moisture in the air, preventing humid air from entering the interior of the converter housing and ensuring the dryness of the gas inside the converter housing. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle; Figure 3 This is a schematic diagram of the heat dissipation device of this utility model; Figure 4 This is a schematic diagram of the desiccant placement rack structure of this utility model; Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point B; Figure 6 This is a schematic diagram of the frame structure of this utility model; Figure 7 This is a schematic diagram of the second structure of the heat dissipation device of this utility model.

[0023] In the diagram: 100, converter housing; 110, opening / closing door; 120, interface; 200. Heat dissipation device one; 210. Frame; 211. Insertion channel; 212. Desiccant rack; 2121. Shelf plate; 2122. Storage space; 2123. Handle; 2124. First sealing rubber gasket; 214. Positioning structure; 2141. Spherical groove; 2142. Mounting groove; 2143. Positioning post; 2144. Compression spring; 215. Receiving device; 2151. Positioning block; 2152. L-shaped positioning plate; 2153. Bolt; 220. Filter screen; 230. Cooling fan; 240. Second sealing rubber; 300. Heat dissipation device two; 310. Heat dissipation fins; 320. Heat dissipation through holes; 400. Heat dissipation air duct. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides, for example Figure 1-7 The energy converter of a hydrogen fuel cell with a heat dissipation structure shown includes: The converter housing 100 has multiple heat dissipation ducts 400 on both sides. The heat dissipation ducts 400 are designed to be evenly distributed to ensure that heat can be dissipated efficiently. The heat dissipation ducts 400 can adopt specific geometric shapes and sizes to optimize the airflow path and thus improve the heat dissipation effect. The heat dissipation device 200 has two components, which are respectively installed on both sides of the converter housing 100. When the two converter housings 100 are started simultaneously or separately, they play the role of heat dissipation and mutual cleaning. The heat is quickly conducted and discharged through fan technology, and the fan speed can be automatically adjusted according to the internal temperature to adapt to the heat dissipation requirements under different workloads. Heat dissipation device 2 300 is installed on converter housing 100 and guides the airflow generated by heat dissipation device 1 200 to accelerate heat dissipation and further improve heat dissipation efficiency.

[0026] By setting two heat dissipation devices 200 respectively on both sides of the converter housing 100, and forming a convection airflow with the heat dissipation duct 400 on the converter housing 100, the heat inside the converter can be quickly carried out. At the same time, the two heat dissipation devices 200 can clean each other by rotating in opposite directions, so as to avoid blockage of the heat dissipation devices 200 and affect heat dissipation.

[0027] The addition of heat dissipation device 2300 increases the heat dissipation area and can also guide the airflow generated by heat dissipation device 1200, further improving heat dissipation efficiency. The dual heat dissipation structure effectively solves the problem of insufficient heat dissipation in existing converters.

[0028] The working principle of this embodiment is as follows: To accelerate heat dissipation, two heat dissipation devices 1 and 200 are activated simultaneously. Heat dissipation device 1 guides the outside airflow into the interior of the converter housing 100 and exhausts it through heat dissipation device 2 and 300. While carrying away the hot air inside the converter housing 100, it also accelerates the airflow at heat dissipation device 2 and 300, thereby speeding up the heat dissipation of heat dissipation device 2 and 300.

[0029] During normal heat dissipation, one of the heat dissipation devices 200 is activated, which directs airflow into the interior of the converter housing 100. Some of the air is discharged through the other heat dissipation device 300, which not only removes the heat from the interior of the converter housing 100 but also accelerates the airflow at the other heat dissipation device 300, thus speeding up the heat dissipation. The remaining air is discharged through the other heat dissipation device 200, which is then cleaned. Conversely, if one heat dissipation device 200 is activated, the other heat dissipation device 200 is cleaned.

[0030] In some embodiments of this utility model, reference is made to Figure 3 and Figure 4 As shown, the heat dissipation device 200 includes: Frame 210 is used to support the entire heat dissipation device and provide structural stability; The filter 220, which is installed inside the frame 210, is used to filter dust and impurities in the air and protect the cooling fan 230 and the converter housing 100 from contamination. The cooling fan 230 is installed inside the frame 210 and located between the filter 220 and the converter housing 100. It generates airflow by rotating at high speed to remove heat from the converter housing 100 and improve the heat dissipation efficiency of the device.

[0031] In some embodiments of this utility model, reference is made to Figure 2-6As shown, a plug-in channel 211 is provided on the frame 210, and a desiccant rack 212 is plugged into the plug-in channel 211. The desiccant rack 212 is used to store desiccant to maintain a dry environment inside the equipment and prevent moisture from damaging the equipment. A positioning structure 214 is installed on the desiccant rack 212 and the plug-in channel 211 to prevent the desiccant rack 212 from sliding or shifting during use. A receiving device 215 for locking the frame 210 is installed on the frame 210 and the converter housing 100. The frame 210 is firmly fixed to the converter housing 100, providing additional stability and safety to ensure that the equipment will not loosen or fall off during operation. In this invention, the positioning structure 214 can be positioned using several existing structures; for example, by using the cooperation of the friction plate and the energy storage structure, when the desiccant placement rack 212 is inserted into the insertion channel 211, the energy storage structure applies a squeezing force to the friction plate, so that the friction plate is squeezed against the inner wall of the insertion channel 211 to increase the friction force and ensure the stability of the desiccant placement rack 212 after insertion. Similarly, the positioning structure 214 can also adopt the plug-in engagement described below. When the desiccant placement rack 212 is inserted into the corresponding position inside the plug-in channel 211, the plug-in structure pops out and engages with the structure on the plug-in channel 211 to position the desiccant placement rack 212, ensuring the stability of the desiccant placement rack 212 after insertion. In this invention, the receiving device 215 can be installed using several existing structures; for example, a mechanical lock can be used to lock the frame 210 on the converter housing 100 when the frame 210 is installed, ensuring the stability of the frame 210 after installation. Similarly, the receiving device 215 can also be fixed by the thread as described below. After the converter housing 100 and the frame 210 are fitted together, the corresponding thread structure is driven into the converter housing 100 and the frame 210 to ensure the stability of the frame 210 after installation.

[0032] In some embodiments of this utility model, reference is made to Figure 4 and Figure 5 As shown, the desiccant rack 212 includes: The bracket 2121 is inserted into the insertion channel 211 to ensure a secure connection and facilitate disassembly and cleaning; Storage space 2122, which is located inside the shelf 2121, is used to store desiccant and is usually made of breathable material to ensure the effectiveness of the desiccant. A handle 2123 is installed on the outside of the shelf 2121 and is used to pull out the shelf 2121 so that the user can easily take out or put in the desiccant.

[0033] The working principle of this embodiment is as follows: When replacing the desiccant, pull out the rack 2121, replace it with a new desiccant, and then push the rack 2121 back into the insertion channel 211.

[0034] In some embodiments of this utility model, reference is made to Figure 5 As shown, the outer surface of the frame plate 2121 is covered with a first sealing rubber gasket 2124 that seals against the inner wall of the insertion channel 211. The first sealing rubber gasket 2124 is made of a highly elastic material, which can effectively prevent gas leakage and maintain good sealing performance under different pressure and temperature conditions, thereby improving the stability and reliability of the overall structure.

[0035] In some embodiments of this utility model, reference is made to Figure 5 and Figure 6 As shown, the positioning structure 214 includes: A spherical groove 2141 is formed on the inner wall of the insertion channel 211 to provide adjustment space and ensure that the frame plate 2121 can slide and be accurately positioned; The mounting groove 2142 is formed on the frame plate 2121 and corresponds to the spherical groove 2141. Through cooperation with the positioning post 2143, the frame plate 2121 is stably fixed. The positioning post 2143 slides into the interior of the mounting groove 2142 and, together with the spherical groove 2141, positions the frame plate 2121. The end of the positioning post 2143 is spherically shaped to maintain the stability of the overall structure. Compression spring 2144 is installed between positioning post 2143 and the inner wall of mounting groove 2142.

[0036] The working principle of this embodiment is as follows: When the frame plate 2121 is pulled out, the inner wall of the spherical groove 2141 will press the positioning post 2143, causing the positioning post 2143 to slide into the mounting groove 2142 and press the compression spring 2144, causing the compression spring 2144 to compress and store force. After the frame plate 2121 is pushed into the designated position, the spherical groove 2141 will correspond to the positioning post 2143, the elastic force of the compression spring 2144 will be released, and the positioning post 2143 will be pushed into the interior of the spherical groove 2141.

[0037] In some embodiments of this utility model, reference is made to Figure 5 and Figure 7 As shown, the receiving device 215 includes: Positioning block 2151, which is installed on the outside of converter housing 100, provides stable support and precise positioning; The L-shaped positioning plate 2152 is installed on the outside of the frame 210 and inserted into the inside of the positioning block 2151. The L-shaped positioning plate 2152 and the positioning block 2151 form a tight fit, which enhances the stability of the overall structure. Bolt 2153 passes through L-shaped positioning plate 2152 and is installed inside positioning block 2151 to fix positioning block 2151 and L-shaped positioning plate 2152. By tightening, positioning block 2151 and L-shaped positioning plate 2152 are tightly fixed to ensure that the connection between the two is firm and reliable.

[0038] The frame 210 is fixed by L-shaped positioning plate 2152 and positioning block 2151 with bolts 2153, which facilitates disassembly and maintenance and reduces the cost of later use.

[0039] In some embodiments of this utility model, reference is made to Figure 7 As shown, the top of the converter housing 100 is equipped with an opening door 110. The opening door 110 is designed for user convenience and is equipped with a dustproof sealing strip to ensure that the internal components are not affected by external dust. The converter housing 100 is provided with interfaces 120, which are neatly arranged and clearly labeled for easy connection to various external devices. Each interface 120 is equipped with a protective cover to prevent accidental damage and foreign object ingress.

[0040] In some embodiments of this utility model, reference is made to Figure 7 As shown, the heat dissipation device 2 300 includes: Multiple heat dissipation fins 310 are provided and installed on the opening and closing door 110. The heat dissipation fins 310 improve heat conduction efficiency by increasing the surface area, thereby dissipating heat inside the equipment more effectively. Multiple sets of heat dissipation holes 320 are provided on the opening and closing door 110 and located between two adjacent heat dissipation fins 310. These heat dissipation holes 320 are designed to promote air circulation, further enhance the heat dissipation effect, and ensure that the equipment maintains a suitable operating temperature during operation.

[0041] In some embodiments of this utility model, reference is made to Figure 6 As shown, a second sealing rubber 240 is bonded to the frame 210 and makes sealing contact with the converter housing 100. The second sealing rubber 240 ensures the sealing performance of the device, effectively prevents dust from entering the converter, and improves the working stability and service life of the converter.

[0042] The working method of this utility model: During the operation of the converter, the cooling fans 230 of the two heat dissipation devices 200 respectively carry in and out air. After being filtered by the filter screen 220, the outside air enters the desiccant placement rack 212, is dried by the desiccant, and then enters the interior of the converter housing 100 through the heat dissipation duct 400. After absorbing the internal heat, it is discharged from the heat dissipation duct 400 on the other side to achieve heat dissipation. At the same time, the heat dissipation fins 310 of the second heat dissipation device 300 conduct the heat inside the converter housing 100 out. Part of the airflow generated by the first heat dissipation device 200 flows through the heat dissipation holes 320 and then through the heat dissipation fins 310 to accelerate heat dissipation.

[0043] When the filter 220 needs to be cleaned, control the two cooling fans 230 to start one and turn off the other. The airflow generated by the side of the cooling fan 230 that is turned on will be discharged through the cooling duct 400 on the other side and blow the dust off the corresponding filter 220.

[0044] When the desiccant needs to be replaced, the shelf 2121 is pulled out using handle 2123. As the shelf 2121 is pulled out, the inner wall of the spherical groove 2141 presses against the positioning post 2143, causing the positioning post 2143 to slide into the mounting groove 2142 and compress the compression spring 2144. This compression spring 2144 stores force, disengaging the positioning post 2143 from the spherical groove 2141. After replacing the desiccant, it is reinserted. When the positioning post 2143 aligns with the spherical groove 2141, it will insert into the groove and position the shelf 2121.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A power converter for a hydrogen fuel cell with a heat dissipation structure, characterized in that, include: The converter housing (100) has multiple heat dissipation ducts (400) on both sides. There are two heat dissipation devices (200), which are respectively installed on both sides of the converter housing (100). The two converter housings (100) play the role of heat dissipation and mutual cleaning when they are started simultaneously or separately. Heat dissipation device 2 (300) is installed on converter housing (100) and guides the airflow generated by heat dissipation device 1 (200) to accelerate heat dissipation.

2. The energy converter of a hydrogen fuel cell with a heat dissipation structure according to claim 1, characterized in that: The heat dissipation device (200) includes: Frame (210); A filter screen (220) is installed inside the frame (210); A cooling fan (230) is mounted inside the frame (210) and located between the filter (220) and the converter housing (100).

3. The energy converter of a hydrogen fuel cell with a heat dissipation structure according to claim 2, characterized in that: The frame (210) has an insertion channel (211), and a desiccant holder (212) is inserted into the insertion channel (211). A positioning structure (214) is installed on the desiccant holder (212) and the insertion channel (211). A receiving device (215) for locking the frame (210) is installed on the frame (210) and the converter housing (100).

4. The energy converter of a hydrogen fuel cell with a heat dissipation structure according to claim 3, characterized in that: The desiccant holder (212) includes: The mounting plate (2121) is inserted into the insertion channel (211); Storage space (2122), which is located inside the shelf (2121), is used to store desiccant; A handle (2123) is installed on the outside of the shelf (2121) and is used to pull out the shelf (2121).

5. The energy converter of a hydrogen fuel cell with a heat dissipation structure according to claim 4, characterized in that: The outer surface of the frame plate (2121) is covered with a first sealing rubber gasket (2124) that is in sealing contact with the inner wall of the insertion channel (211).

6. The energy converter of a hydrogen fuel cell with a heat dissipation structure according to claim 4, characterized in that: The positioning structure (214) includes: A spherical groove (2141) is formed on the inner wall of the insertion channel (211); The mounting groove (2142) is formed on the frame plate (2121) and corresponds to the spherical groove (2141); The positioning post (2143) slides into the interior of the mounting groove (2142) and, together with the spherical groove (2141), positions the frame plate (2121); A compression spring (2144) is installed between the positioning post (2143) and the inner wall of the mounting groove (2142).

7. The energy converter of a hydrogen fuel cell with a heat dissipation structure according to claim 3, characterized in that: The receiving device (215) includes: A positioning block (2151) is mounted on the outside of the converter housing (100); L-shaped positioning plate (2152) is installed on the outside of frame (210) and inserted into the inside of positioning block (2151); Bolt (2153), which passes through L-shaped positioning plate (2152) and is installed inside positioning block (2151), fixes positioning block (2151) to L-shaped positioning plate (2152).

8. The energy converter of a hydrogen fuel cell with a heat dissipation structure according to claim 1, characterized in that: The top of the converter housing (100) is equipped with an opening and closing door (110), and the converter housing (100) is provided with an interface (120).

9. The energy converter of a hydrogen fuel cell with a heat dissipation structure according to claim 8, characterized in that: The second heat dissipation device (300) includes: Multiple heat dissipation fins (310) are provided and installed on the opening and closing door (110); Multiple sets of heat dissipation through holes (320) are provided on the opening and closing door (110) and located between two adjacent heat dissipation fins (310).

10. The energy converter of a hydrogen fuel cell with a heat dissipation structure according to claim 2, characterized in that: A second sealing rubber (240) is bonded to the frame (210) and makes sealing contact with the converter housing (100).

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