High-power-density all-in-one hydrogen fuel cell integrated electrical device
Through the cross-set water-cooled plate and adaptive air-cooled structure, the heat dissipation problems of DCDC power converters and DCAC inverters in the vehicle power system of hydrogen fuel cell are solved, and efficient heat dissipation treatment is achieved, ensuring the stable power output of the system.
Patent Information
- Application Number
- CN202510382551.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2025-08-08
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the existing hydrogen fuel cell vehicle-mounted power systems, the high demand for heat dissipation of DCDC power converters and DCAC inverters has led to unstable system power output, especially the heat dissipation problem of other components has not been effectively solved.
The parallel water-cooled plate and vertical water-cooled plate are adopted with an adaptive air-cooled structure, and the magnetic field generator is used to control the position and shape of the magnetic fluid and movable blocks to achieve accurate air-cooling treatment of local overheated areas, and the shell is fixed with thermally conductive silicone to adapt to water-cooled plates of different sizes.
It realizes rapid water cooling of high-power components and special air cooling treatment in areas with excessive local temperatures, improves the heat dissipation efficiency and flexibility of the system, and ensures the stable power output of the on-board power system of the hydrogen fuel cell.
Smart Images
Figure CN120453412A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of power electronics technology, and in particular to a high-power-density all-in-one hydrogen fuel cell integrated electrical device. Background Art
[0002] Hydrogen reacts chemically in fuel cells, generating a wide and unstable DC voltage. This DC voltage can be stabilized and adjusted through a DC-DC power converter to drive motors, which is used in road transportation. The voltage generated by the fuel cell can also be used to drive a DC-AC inverter through a DC-DC power converter to generate AC power, which is used in power generation and combined heat and power.
[0003] In hydrogen fuel cell vehicle power systems, space utilization is improved by combining the two independent devices, the DC-DC power converter and the DC-AC inverter, into one unit. However, as is well known, this results in higher heat dissipation requirements. Currently, water cooling is used to quickly dissipate heat from the high-power MOSFET components in the DC-DC power converter and DC-AC inverter. However, since other components of the DC-DC power converter and DC-AC inverter also dissipate heat, if not addressed promptly, the power output of the entire hydrogen fuel cell vehicle power system will be affected.
[0004] In summary, a high power density all-in-one hydrogen fuel cell integrated electrical device is designed. Summary of the Invention
[0005] In order to overcome the above-mentioned deficiencies, the present invention provides a high power density all-in-one hydrogen fuel cell integrated electrical device.
[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: A high-power-density all-in-one hydrogen fuel cell integrated electrical device, comprising a parallel water-cooling plate, a vertical water-cooling plate, a DCDC control board, and a DCAC control board. The parallel water-cooling plate and the vertical water-cooling plate are arranged crosswise, with the DCDC control board located on one side of the parallel water-cooling plate and the DCAC control board located on one side of the vertical water-cooling plate. The parallel water-cooling plates and the vertical water-cooling plates are both provided with adaptive air-cooling structures; The adaptive air cooling structure includes a shell, a magnetic field generator, a movable component, an air guide component and an air pump. The air pump is connected to the air guide component. The magnetic field generator is located inside the shell and controls the movement of the movable component inside the shell. The movable component is magnetically connected to the air guide component.
[0007] Preferably, the magnetic field generator includes two transverse magnetic field electrode plates and two vertical magnetic field electrode plates, which are arranged opposite to each other and located on the inner wall of the shell, and a number of electromagnetic coils are arranged at equal intervals on the magnetic field electrode plates.
[0008] Preferably, the movable component includes a magnetic fluid, and the position and shape of the magnetic fluid in the shell continuously change under the action of the magnetic field generator. The entire temperature condition of the DCDC control board and the DCAC control board below can be detected online through a temperature imager. At the same time, the local overheating area can be analyzed through an external control terminal, and then the magnetic field generator is controlled to operate. The magnetic field generator controls the magnetic field emitted by the two transverse magnetic field electrode plates and the two vertical magnetic field electrode plates according to the position and shape of the local overheating area, thereby realizing the control of the position and shape of the magnetic fluid.
[0009] Preferably, the air guide assembly includes several movable blocks, a magnet is provided above the movable block, the magnet and the magnetic fluid are magnetically connected to each other, a number of air guide holes are provided on the movable block, an air inlet is provided on one side of the movable block, the air pump is connected to the air guide holes through the air inlet, the magnetic fluid is concentrated in a certain place, so that the magnets move accordingly, so that the movable blocks will be concentrated in the designated area to quickly and effectively dissipate heat in the area where the local temperature is increased.
[0010] Preferably, the air guide holes on each movable block have different opening angles, and the opening angles of the air guide holes on the inner side are smaller than the opening angles of the air guide holes on the outer side, so that the angles of the air blown out from the movable blocks are different, thereby causing disturbances in the areas where heat dissipation is required, increasing the residence time, and allowing the air to fully absorb heat.
[0011] Preferably, the aperture of the air guide hole gradually decreases from the inside to the outside, so that the velocity of the derived wind can be gradually increased, thereby improving the air cooling effect.
[0012] Preferably, the DCDC power devices on the DCDC control board are closely attached to the parallel water-cooling plates, and the DCAC power devices on the DCAC control board are closely attached to the vertical water-cooling plates.
[0013] Preferably, a temperature imager is provided on the housing, and the temperature imager, the magnetic field generator and the air pump are all connected to an external control terminal.
[0014] Preferably, the shell is fixed on a parallel water-cooling plate or a vertical water-cooling plate by means of thermally conductive silica gel, and the size of the shell is adjustable.
[0015] The beneficial effects of the present invention are as follows: in the high power density all-in-one hydrogen fuel cell integrated electrical device: Parallel water cooling plates and vertical water cooling plates are cross-set, with the DCDC control board located on one side of the parallel water cooling plate and the DCAC control board located on the other side of the vertical water cooling plate, enabling rapid water cooling of high-power components inside the device. Both the parallel and vertical water-cooling plates are equipped with adaptive air-cooling structures, which can provide special air-cooling treatment for areas with excessively high temperatures, thus improving the practicality of the device. The shell is fixed to the parallel water-cooling plate or the vertical water-cooling plate through thermal conductive silicone. The size of the shell is adjustable and can be adjusted according to the size of the parallel water-cooling plate and the vertical water-cooling plate, thereby improving the flexibility of the adaptive air-cooling structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The present invention will now be described by way of example with reference to the accompanying drawings, in which: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a structural schematic diagram of the air guide assembly of the present invention; Figure 3 is a schematic structural diagram of the air guide assembly in the first state of the present invention; Figure 4 is a schematic structural diagram of the air guide assembly in the first state of the present invention; Figure 5 is a schematic structural diagram of the air guide assembly in the second state of the present invention; Figure 6 is a schematic structural diagram of the air guide assembly in the second state of the present invention; Figure 7 is a schematic structural diagram of the air guide assembly in the third state of the present invention; Figure 8 3 is a schematic structural diagram of the air guide assembly in the third state of the present invention. DETAILED DESCRIPTION
[0017] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.
[0018] like Figure 1-2 As shown, a high-power-density all-in-one hydrogen fuel cell integrated electrical device includes a parallel water-cooling plate 4, a vertical water-cooling plate 5, a DCDC control board 2, and a DCAC control board 1. The parallel water-cooling plate 4 and the vertical water-cooling plate 5 are arranged crosswise, the DCDC control board 2 is located on one side of the parallel water-cooling plate 4, and the DCAC control board 1 is located on one side of the vertical water-cooling plate 5. The DCDC control board 2 is water-cooled by the parallel water-cooling plate 4, and the DCAC control board 1 is water-cooled by the vertical water-cooling plate 5.
[0019] The parallel water-cooling plate 4 and the vertical water-cooling plate 5 are both provided with an adaptive air-cooling structure 7; The adaptive air cooling structure 7 includes a shell 8, a magnetic field generator, a movable component, an air guide component and an air pump. The air pump is connected to the air guide component. The magnetic field generator is located inside the shell 8, and the magnetic field generator controls the movement of the movable component inside the shell 8. The movable component is magnetically connected to the air guide component.
[0020] Specifically, the magnetic field generator includes two transverse magnetic field electrode plates 12 and two vertical magnetic field electrode plates 13. The two transverse magnetic field electrode plates 12 and the two vertical magnetic field electrode plates 13 are arranged opposite to each other and are located on the inner wall of the shell 8. A number of electromagnetic coils are arranged at equal intervals on the magnetic field electrode plates. The magnetic field can be effectively controlled by each electromagnetic coil, and the position and shape of the magnetic fluid 11 can be more accurately controlled.
[0021] Specifically, the active component includes a magnetic fluid 11, and the position and shape of the magnetic fluid 11 in the housing 8 continuously change under the action of the magnetic field generator. The temperature condition of the DCDC control board 2 and the DCAC control board 1 below can be detected online through a temperature imager. At the same time, the local overheating area can be analyzed through an external control terminal, and then the magnetic field generator is controlled to operate. The magnetic field generator controls the magnetic field emitted by the two transverse magnetic field electrode plates 12 and the two vertical magnetic field electrode plates 13 according to the position and shape of the local overheating area, thereby realizing the position and shape control of the magnetic fluid 11.
[0022] Specifically, the air guide assembly includes several movable blocks 9, a magnet 10 is provided above the movable block 9, the magnet 10 and the magnetic fluid 11 are magnetically connected to each other, a number of air guide holes are provided on the movable block 9, and an air inlet is provided on one side of the movable block 9. The air pump is connected to the air guide holes through the air inlet. The magnetic fluid 11 is concentrated in a certain place, so that the magnet 10 moves accordingly, so that the movable blocks 9 will be concentrated in the designated area to quickly and effectively dissipate heat in the local area with high temperature.
[0023] Specifically, the opening angles of the air guide holes on each movable block 9 are different, and the opening angles of the air guide holes on the inner side are smaller than the opening angles of the air guide holes on the outer side. This can make the angles of the air blown out from the movable block 9 different, thereby causing disturbances in the areas where heat dissipation is required, increasing the residence time, and allowing the air to fully absorb heat.
[0024] Specifically, the aperture of the air guide hole gradually decreases from the inside to the outside, which can gradually increase the flow rate of the guided air and improve the air cooling effect.
[0025] Specifically, the DCDC power devices 3 on the DCDC control board 2 are closely attached to the parallel water cooling plate 4 , and the DCAC power devices 6 on the DCAC control board 1 are closely attached to the vertical water cooling plate 5 .
[0026] Specifically, the housing 8 is provided with a temperature imager, and the temperature imager, the magnetic field generator and the air pump are all connected to an external control terminal.
[0027] Specifically, the shell 8 is fixed on the parallel water-cooling plate 4 or the vertical water-cooling plate 5 by means of heat-conducting silica gel, and the size of the shell 8 is adjustable.
[0028] like Figure 3-4 As shown, on the DCDC control board 2 or DCAC control board 1 corresponding to the adaptive air-cooling structure 7, the local overheating area is located at the center of the shell 8. At the same time, when it is circular, the two transverse magnetic field electrode plates 12 and the two vertical magnetic field electrode plates 13 control the magnetic field to be circular in this area, and then the magnetic fluid will move to this place and at the same time be circular. Then, each movable block 9 will be sucked over due to the magnet 10 and gathered there, and then the air pump will perform centralized air cooling on the area below through the air guide hole.
[0029] like Figure 5-6 As shown, after the temperature imager detects the position and shape of the local overheating area on the lower DCDC control board 2 or DCAC control board 1, it is located at the center of the housing 8 and appears as a rectangle.
[0030] like Figure 7-8 As shown, the temperature imager detects that the local overheating area on the lower DCDC control board 2 or DCAC control board 1 is located at the upper right of the shell 8, has a rectangular shape, is located in the center of the shell 8, and is rectangular.
[0031] The above description is for inspiration. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical concept of this invention. The technical scope of this invention is not limited to the content of the specification, but must be determined according to the scope of the claims.
Claims
1. A high power density all-in-one hydrogen fuel cell integrated electrical device, characterized by: It includes parallel water-cooling plates, vertical water-cooling plates, DCDC control plates and DCAC control plates. The parallel water-cooling plates and vertical water-cooling plates are arranged crosswise, with the DCDC control plate located on one side of the parallel water-cooling plates and the DCAC control plate located on the other side of the vertical water-cooling plates. The parallel water-cooling plates and the vertical water-cooling plates are both provided with adaptive air-cooling structures; The adaptive air cooling structure includes a shell, a magnetic field generator, a movable component, an air guide component and an air pump. The air pump is connected to the air guide component. The magnetic field generator is located inside the shell and controls the movement of the movable component inside the shell. The movable component is magnetically connected to the air guide component.
2. The high power density all-in-one hydrogen fuel cell integrated electrical device according to claim 1, characterized in that: The magnetic field generator includes two transverse magnetic field electrode plates and two vertical magnetic field electrode plates. The two transverse magnetic field electrode plates and the two vertical magnetic field electrode plates are arranged opposite to each other and located on the inner wall of the shell. A number of electromagnetic coils are arranged at equal intervals on the magnetic field electrode plates.
3. The high power density all-in-one hydrogen fuel cell integrated electrical device according to claim 1, characterized in that: The movable component includes a magnetic fluid, and the position and shape of the magnetic fluid in the housing continuously change under the action of the magnetic field generator.
4. The high power density all-in-one hydrogen fuel cell integrated electrical device according to claim 1, characterized in that: The air guide assembly includes several movable blocks, a magnet is provided above the movable block, the magnet and the magnetic fluid are magnetically connected to each other, several air guide holes are provided on the movable block, and an air inlet is provided on one side of the movable block, and the air pump is connected to each air guide hole through the air inlet.
5. The high power density all-in-one hydrogen fuel cell integrated electrical device according to claim 4, characterized in that: The opening angles of the air guide holes provided on each movable block are different, and the opening angles of the air guide holes located on the inner side are smaller than the opening angles of the air guide holes located on the outer side.
6. The high power density all-in-one hydrogen fuel cell integrated electrical device according to claim 4, characterized in that: The aperture of the air guide hole gradually decreases from the inside to the outside.
7. The high power density all-in-one hydrogen fuel cell integrated electrical device according to claim 1, characterized in that: The DCDC power devices on the DCDC control board are closely attached to the parallel water cooling plates, and the DCAC power devices on the DCAC control board are closely attached to the vertical water cooling plates.
8. The high power density all-in-one hydrogen fuel cell integrated electrical device according to claim 1, characterized in that: A temperature imager is provided on the shell, and the temperature imager, the magnetic field generator and the air pump are all connected to an external control terminal.
9. The high power density all-in-one hydrogen fuel cell integrated electrical device according to claim 1, characterized in that: The shell is fixed on the parallel water-cooling plate or the vertical water-cooling plate through heat-conducting silica gel, and the size of the shell is adjustable.