power generation device

Abstract

The embodiment of the application discloses a power generation device, and relates to the technical field of power generation equipment, wherein the power generation device comprises a main body, a power generation assembly and a heat transfer mechanism, the main body is formed with a movable cavity, the movable cavity is provided with opposite first and second inner walls, the first inner wall is provided with a magnetic part, the power generation assembly is arranged in the movable cavity and is movably arranged between the first and second inner walls, the power generation assembly is provided with a coil and a magnetic heat material, and the heat transfer mechanism is connected with the magnetic part and used for transferring heat to the magnetic part. The technical scheme provided by the embodiment of the application aims to improve the practicability and reliability of the power generation device.

Description

Technical Field

[0001] The embodiments in this application relate to the field of power generation equipment technology, and in particular to a power generation device. Background Technology

[0002] Among related technologies, using industrial waste heat and other thermal energy for power generation is a clean, low-carbon, stable and reliable new power generation technology. By making full use of the waste heat released into the environment by various devices, and combining it with the structural design of thermoelectric power generation devices to convert thermal energy into electrical energy, the waste heat in the environment can be recycled and utilized.

[0003] However, most existing thermoelectric power generation devices use semiconductor materials to achieve thermoelectric power generation. Semiconductor power generation devices have high requirements for temperature management accuracy, and usually need to set up a set of precise temperature control devices at both the hot end and the cold end. This results in a more complex overall structure of the power generation device, higher manufacturing costs, and poor practicality. Summary of the Invention

[0004] Several embodiments in this application propose a power generation device aimed at improving the practicality and reliability of the power generation device.

[0005] One embodiment of this application proposes a power generation device including a main body, a power generation component, and a heat transfer mechanism. The main body forms a movable cavity, which has opposing first and second inner walls. The first inner wall has a magnetic component. The power generation component is disposed within the movable cavity and is movably disposed between the first and second inner walls. The power generation component has a coil and a magnetothermal material. The heat transfer mechanism is connected to the magnetic component to transfer heat to the magnetic component.

[0006] In one embodiment, the heat transfer mechanism includes a first heat exchange tube and a first medium, the first medium flowing within the first heat exchange tube, the first heat exchange tube including a heat-releasing tube and a heat-absorbing tube connected together, the heat-releasing tube being connected to the magnetic component, and the heat-absorbing tube being disposed on one side of the main body component.

[0007] In one embodiment, the magnetic component has a receiving cavity, and the heat dissipation tube is at least partially inserted into the receiving cavity.

[0008] In one embodiment, the first heat exchange tube includes at least two heat absorption tubes, and the first heat exchange tube also includes a manifold and at least two branch pipes; the manifold connects the output ends of at least two heat absorption tubes to the input end of the heat release tube, the output end of one branch pipe is connected to the input end of one heat absorption tube, and the input ends of at least two branch pipes are connected to the output end of the heat release tube.

[0009] In one embodiment, the power generation device further includes a cooling mechanism connected to the second inner wall to reduce the temperature at the second inner wall.

[0010] In one embodiment, the cooling mechanism includes a cooling structure and a heat exchange component. The cooling structure is installed on the second inner wall and has a cold air chamber inside. The heat exchange component is connected to the cooling structure and is configured to exchange heat with the cold air chamber.

[0011] In one embodiment, the heat exchange assembly includes an air duct, a heat absorption mechanism, and a fan. One end of the air duct is connected to the cold air chamber, the fan is connected to the other end of the air duct, and the heat absorption mechanism is connected to the air duct to absorb heat from the air duct.

[0012] In one embodiment, the heat absorption mechanism includes a second heat exchange tube and a second medium, the second medium flowing inside the second heat exchange tube, the second heat exchange tube having a heat absorption end and a heat release end, the heat absorption end being connected to the air guide pipe.

[0013] In one embodiment, the power generation device further includes a heat exchanger, and the heat transfer mechanism includes a first heat exchange tube, wherein the heat absorption tube of the first heat exchange tube and the heat release end of the second heat exchange tube are both disposed inside the heat exchanger.

[0014] In one embodiment, coils are arranged in the air conditioning chamber.

[0015] In one embodiment, the power generation assembly further includes a support structure having opposing first and second surfaces, the magnetocaloric material being disposed on the first surface and the coil being mounted on the second surface.

[0016] In one embodiment, the power generation assembly further includes a base and a swing arm. The base is disposed on one side of the main body, and the swing arm is oscillatingly connected to the base and connected to the support structure. The swing arm can pull the support structure to move between the first inner wall and the second inner wall.

[0017] In the various embodiments provided in this application, the principle that magnetocaloric materials exhibit strong magnetism at low temperatures and paramagnetism at high temperatures is utilized to enable a power generation component equipped with magnetocaloric material to move within a movable cavity. When the power generation component moves close to the second inner wall, the magnetocaloric material can be brought to a certain low-temperature state and exhibit strong magnetism. At this time, the power generation component can be attracted by the magnetic element on the first inner wall and move towards the first inner wall, causing the coil to move closer to the magnetic element and cut the magnetic field lines emitted by the magnetic element, thereby generating a certain amount of electrical energy in the coil. At this time, by using a heat transfer mechanism to transfer a certain amount of heat to the magnetic element, the magnetic element can release a certain amount of thermal radiation to the power generation component. After a certain period of time, the magnetocaloric material can be heated up and gradually become paramagnetic, thereby causing the power generation component to lose the magnetic attraction with the magnetic element. This allows the power generation component to move towards the second inner wall under the action of a certain external force such as gravity, causing the coil to move away from the magnetic element and cut the magnetic field lines again. Then, when the power generation component approaches the second inner wall, the magnetocaloric material can be cooled down and restored to strong magnetism, allowing the power generation component to move back and forth within the movable cavity, achieving stable power generation operation. By utilizing the magnetic conversion of magnetocaloric materials when the temperature changes, the power generation component can move and generate electricity within the active cavity. This eliminates the need for precise temperature control devices to ensure stable power generation, which helps to simplify the overall structural design of the power generation device and further improves its practicality and structural reliability. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments or prior art of this application, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of the first embodiment of the power generation device provided in this application; Figure 2 A schematic diagram of the structure of the second embodiment of the power generation device provided in this application; Figure 3 A schematic diagram of the structure of an embodiment of the main component of the power generation device provided in this application; Figure 4 A schematic diagram of the structure of a power generation component of the power generation device provided in this application; Figure 5 A schematic diagram of the first working process of the power generation device provided in this application; Figure 6 A schematic diagram of the second working process of the power generation device provided in this application; Figure 7 A schematic diagram of the third working process of the power generation device provided in this application; Figure 8 A schematic diagram of the fourth working process of the power generation device provided in this application.

[0020] Explanation of icon numbers: 100. Power generation device; 10. Main body; 11. Movable cavity; 13. Magnetic component; 131. Receptacle cavity; 30. Power generation assembly; 31. Magnetothermal material; 33. Coil; 35. Support structure; 37. Base; 39. Swing arm; 50. Heat transfer mechanism; 51. First heat exchange tube; 511. Heat release tube; 513. Heat absorption tube; 515. Combination tube; 517. Diversion tube; 70. Cooling mechanism; 71. Cooling structure; 711. Cold air chamber; 713. Coil; 73. Heat exchange assembly; 731. Air duct; 733. Heat absorption mechanism; 7331. Second heat exchange tube; 735. Fan; 90. Heat exchanger. Detailed Implementation

[0021] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings of several embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that if multiple embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if multiple embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0024] Among related technologies, using industrial waste heat and other thermal energy for power generation is a clean, low-carbon, stable, and reliable new power generation technology. It fully utilizes waste heat released into the environment from various devices, combined with a thermoelectric power generation device that converts thermal energy into electrical energy, thus achieving the recovery and utilization of waste heat from the environment. However, most existing thermoelectric power generation devices use semiconductor materials to achieve thermoelectric power generation. Semiconductor power generation devices require high precision in temperature management, typically requiring a precise temperature control device at both the hot and cold ends. This results in a complex overall structure, high manufacturing costs, and poor practicality.

[0025] It should be noted that semiconductor materials typically have a cold end and a hot end positioned opposite each other. By heating the hot end to a higher temperature and regulating the cold end to a lower temperature, the semiconductor material can generate electrical energy through the temperature difference between the hot and cold ends, thus enabling the power generation device to operate. Therefore, in existing technologies, the hot end of the semiconductor material is usually brought into contact with a heat source such as waste heat from the environment, while the cold end of the semiconductor material is placed in a normal temperature environment or regulated to a lower temperature using a temperature control device, thereby enabling the power generation device to recover and utilize waste heat.

[0026] However, utilizing semiconductor materials requires a sophisticated temperature control system. Improper heat dissipation design or ineffective thermal isolation can easily lead to heat accumulation, affecting power generation efficiency. Furthermore, the hot and cold ends of semiconductor materials typically require separate stable temperature control devices to maintain the temperature difference and ensure power generation. This results in a complex overall structure and high production costs for the power generation device. Moreover, semiconductor materials are prone to performance degradation, oxidation, and aging after a certain period of use, leading to poor reliability and a short lifespan. Therefore, existing thermoelectric conversion power generation devices have low practicality, structural reliability, and poor economic performance. To address these problems, this application proposes a power generation device.

[0027] Please see Figure 1 and Figure 2 In one embodiment of this application, the power generation device 100 includes a main body 10, a power generation component 30, and a heat transfer mechanism 50. The main body 10 forms a movable cavity 11, which has a first inner wall and a second inner wall facing each other. The first inner wall has a magnetic component 13. The power generation component 30 is disposed in the movable cavity 11 and is movably disposed between the first inner wall and the second inner wall. The power generation component 30 has a coil 33 and a magnetothermal material 31. The heat transfer mechanism 50 is connected to the magnetic component 13 to transfer heat to the magnetic component 13.

[0028] In this embodiment, the main body 10 can be a frame structure or box structure with a certain structural strength. By setting an active cavity 11 inside the main body 10, the active cavity 11 can be an open slot cavity set in the inner cavity of the slot on one side of the main body 10, so that the power generation component 30 can stably enter the active cavity 11 and move, so that the power generation component 30 can stably drive the coil 33 to move in the active cavity 11 to cut the magnetic field lines generated by the magnetic component 13 to generate electricity.

[0029] The magnetic component 13 can be a permanent magnet structure with strong magnetism, or an adjustable electromagnetic coil 33 device, etc. The magnetic component 13 can be installed on the first inner wall and emit certain magnetic field lines toward the movable cavity 11. Moreover, the magnetic field lines emitted by the magnetic component 13 gradually weaken from the first inner wall to the second inner wall. Thus, when the magnetothermal material 31 of the power generation component 30 has ferromagnetism, it can be stably attracted by the magnetic component 13, and when the magnetothermal material 31 loses its magnetism, it can detach from the magnetic component 13 and move toward the second inner wall.

[0030] As the power generation component 30 moves within the movable cavity 11, the coil 33 cuts the magnetic field lines generated by the magnetic component 13, generating electrical energy through electromagnetic induction and enabling the power generation device 100 to generate electricity. The magnetothermal material 31 can be made of materials such as gadolinium or terbium. Utilizing the characteristic that gadolinium's Curie temperature is close to room temperature, and that gadolinium exhibits ferromagnetism below its Curie temperature and paramagnetism above its Curie temperature, the magnetism of the magnetothermal material 31 can be controlled by temperature. This allows the power generation component 30 to be attracted to or detached from the magnetic component 13. By controlling the heating or cooling of the power generation component 30, stable movement of the power generation component 30 within the movable cavity 11 can be achieved.

[0031] The heat transfer mechanism 50 can be made of heat-conducting materials such as heat-conducting plates and heat-conducting pipes, so that the heat transfer mechanism 50 can contact the heat source such as waste heat in the environment on the outside of the main body 10, and the heat transfer mechanism 50 can transfer the absorbed heat to the magnetic component 13.

[0032] Thus, when the power generation component 30 is near the second inner wall within the active cavity 11, the magnetocaloric material 31 can be in a lower room temperature environment, resulting in a temperature below its Curie temperature. Alternatively, a cooling device can be installed on the second inner wall to lower its temperature, thereby allowing the heat from the power generation component 30 to be absorbed, keeping the temperature of the magnetocaloric material 31 below its Curie temperature. This causes the magnetocaloric material 31 to exhibit ferromagnetism, allowing the power generation component 30 to be attracted by the magnetic force of the magnetic element 13 and move towards the first inner wall. During this movement, the coil 33 can synchronously cut the magnetic field lines, generating electricity. When the power generation component 30 approaches the magnetic element 13, the heat from the magnetic element 13 can radiate to the power generation component 30, heating the magnetocaloric material 31 to a certain temperature, causing it to become paramagnetic. At this point, the magnetism on the power generation component 30 gradually disappears, causing the power generation component 30 to gradually detach from the magnetic element 13 and move towards the second inner wall. Then, when the power generation component 30 moves toward the second inner wall, the magnetothermal material 31 can regain its ferromagnetism, thereby enabling the power generation component 30 to continuously move between the first inner wall and the second inner wall, driving the coil 33 to continuously cut the magnetic field lines generated by the magnetic component 13, ensuring the stable power generation of the power generation device 100.

[0033] By using the heat transfer mechanism 50 to transfer a certain amount of heat to the magnetic component 13, the magnetic component 13 can be heated to a certain temperature. The power generation component 30 can cool down the magnetothermal material 31 at the second inner wall away from the magnetic component 13 and restore its ferromagnetism. When it is attracted to the first inner wall by the magnetic component 13, the magnetothermal material 31 can be heated up and converted to paramagnetism. The magnetic conversion of the magnetothermal material 31 is achieved by using the temperature change, thereby realizing the movement of the power generation component 30 between the first inner wall and the second inner wall. This allows the coil 33 to move within the movable cavity 11, cutting magnetic field lines, thus achieving stable power generation of the power generation device 100. This ensures the effective recovery and utilization of heat sources such as waste heat in the environment and effectively improves the practicality of the power generation device 100.

[0034] In this application, the use of heat source only changes the magnetism of magnetocaloric material 31, and the magnetic conversion temperature range of magnetocaloric material 31 is large. It is not necessary to set up a precise temperature control device to stably maintain the temperature inside the power generation device 100, which is conducive to better reducing the production cost of the power generation device 100 and simplifying the overall structural design of the power generation device 100. In addition, the magnetocaloric material 31 and coil 33 can still maintain relatively stable performance after the power generation device 100 has been operating for a long time, with little performance degradation and a long service life, thereby effectively improving the structural stability and reliability of the power generation device 100.

[0035] In one embodiment of this application, the principle that the magnetocaloric material 31 exhibits strong magnetism at low temperatures and paramagnetism at high temperatures is utilized to allow the power generation component 30, on which the magnetocaloric material 31 is disposed, to move within the movable cavity 11. When the power generation component 30 moves to a position close to the second inner wall, the magnetocaloric material 31 can be brought to a certain low temperature state and exhibit strong magnetism. At this time, the power generation component 30 can be attracted by the magnetic element 13 on the first inner wall and move towards the first inner wall, causing the coil 33 to move closer to the magnetic element 13 and cut the magnetic field lines emitted by the magnetic element 13, thereby generating a certain amount of electrical energy in the coil 33. At this time, by using the heat transfer mechanism 50 to transfer a certain amount of heat to the magnetic element 13, the magnetic element 13 can release a certain amount of thermal radiation to the power generation component 30. After a certain period of time, the magnetocaloric material 31 can be heated and gradually converted to paramagnetism, thereby causing the power generation component 30 to lose the magnetic attraction with the magnetic element 13. This allows the power generation component 30 to move towards the second inner wall under the action of a certain external force such as gravity, causing the coil 33 to move away from the magnetic element 13 and cut the magnetic field lines again. Then, when the power generation component 30 approaches the second inner wall, the magnetocaloric material 31 can be cooled and restored to strong magnetism, allowing the power generation component 30 to move back and forth within the movable cavity 11, achieving stable power generation. Utilizing the magnetic conversion of the magnetocaloric material 31 during temperature changes to enable the power generation component 30 to move and generate electricity within the movable cavity 11 eliminates the need for precise temperature control devices to ensure stable power generation of the power generation device 100. This simplifies the overall structural design of the power generation device 100, further improving its practicality and structural reliability.

[0036] See Figure 3 In one embodiment of this application, the heat transfer mechanism 50 includes a first heat exchange tube 51 and a first medium. The first medium flows within the first heat exchange tube 51. The first heat exchange tube 51 includes a heat-releasing tube 511 and a heat-absorbing tube 513 connected to each other. The heat-releasing tube 511 is connected to the magnetic component 13, and the heat-absorbing tube 513 is disposed on one side of the main body component 10.

[0037] In this embodiment, a heat transfer mechanism 50 is formed by using a first heat exchange tube 51 and a first medium. The first medium can be dichlorofluoromethane, hexafluorobutene, etc. The first medium is injected into the first heat exchange tube 51 and flows. The phase change of the first medium in the first heat exchange tube 51 can be used to absorb or release heat, so that the heat transfer mechanism 50 can stably absorb waste heat and other thermal energy in the environment and transfer a certain amount of thermal energy to the magnetic component 13, so as to realize the reciprocating movement of the power generation component 30 between the first inner wall and the second inner wall.

[0038] At this time, the first heat exchange tube 51 may include a heat-releasing tube 511 and a heat-absorbing tube 513 connected together. By connecting the heat-releasing tube 511 to the magnetic component 13 and setting the heat-absorbing tube 513 on one side of the main body 10, the heat-absorbing tube 513 can stably absorb waste heat and other thermal energy in the environment where the main body 10 is located. The thermal energy can be used to convert the first medium flowing through the heat-absorbing tube 513 from liquid phase heat absorption to gas phase, so that the gas phase first medium is transported to the heat-releasing tube 511, and the first medium is converted from gas phase heat release to liquid phase when flowing through the heat-releasing tube 511, so that the heat-releasing tube 511 can stably transfer a certain amount of heat to the magnetic component 13. At this time, the first medium in liquid phase can be transported into the heat-absorbing tube 513, and the phase conversion of the first medium can be used to realize the absorption and transfer of waste heat in the environment, further improving the structural stability and reliability of the power generation device 100.

[0039] See Figure 3 In one embodiment of this application, the magnetic component 13 is provided with a receiving cavity 131, and the heat dissipation tube 511 is at least partially inserted into the receiving cavity 131.

[0040] In this embodiment, by forming a cavity 131 within the magnetic component 13, an opening communicating with the cavity 131 can be formed on one side of the magnetic component 13. This allows the heat-dissipating tube 511 to pass through the opening and be inserted into the cavity 131. The heat is released by liquefaction when the first medium flows through the heat-dissipating tube 511, allowing the tube to better release heat onto the magnetic component 13 within the cavity 131. By using the cavity 131 on the magnetic component 13 to house the heat-dissipating tube 511, the heat exchange efficiency between the magnetic component 13 and the heat-dissipating tube 511 can be improved. Simultaneously, the heat-dissipating tube 511 can be better protected, allowing the heat transfer mechanism 50 and the magnetic component 13 to be better connected to form an integral structure, further improving the overall structural stability and reliability of the power generation device 100.

[0041] See Figure 3 In one embodiment of this application, the first heat exchange tube 51 includes at least two heat absorption tubes 513, and the first heat exchange tube 51 also includes a manifold 515 and at least two branch pipes 517; the manifold 515 connects the output ends of at least two heat absorption tubes 513 and the input end of the heat release tube 511, the output end of one branch pipe 517 is connected to the input end of one heat absorption tube 513, and the input ends of at least two branch pipes 517 are connected to the output ends of the heat release tube 511.

[0042] In this embodiment, by including at least two heat-absorbing tubes 513 in the first heat exchange tube 51, the at least two heat-absorbing tubes 513 can be arranged on one side of the main body 10, which is beneficial to increase the area of ​​the heat transfer mechanism 50 absorbing heat sources such as waste heat and improve the efficiency of the power generation device 100 in heating the magnetic component 13 using waste heat.

[0043] By connecting at least two heat-absorbing pipes 513 and heat-releasing pipes 511 using a manifold 515, and by connecting at least two branch pipes 517 to at least two heat-absorbing pipes 513 one by one, the complete circuit setup of the first heat exchange pipe 51 can be achieved. This allows the first medium to absorb heat and vaporize in the heat-absorbing pipe 513 and then flow into the manifold 515 to converge and flow towards the heat-releasing pipe 511. Conversely, the first medium to release heat and liquefy in the heat-releasing pipe 511 can then be diverted through the at least two branch pipes 517 to at least two heat-absorbing pipes 513. This ensures the stable circulation of the first medium within the first heat exchange pipe 51, allowing the heat transfer mechanism 50 to better absorb waste heat and other heat from the environment and stably transfer heat to the magnetic component 13. The heat on the magnetic component 13 ensures the stable movement of the power generation component 30 within the movable cavity 11, further improving the structural stability and reliability of the power generation device 100.

[0044] See Figure 1 and Figure 2 In one embodiment of this application, the power generation device 100 further includes a cooling mechanism 70, which is connected to the second inner wall to reduce the temperature at the second inner wall.

[0045] In this embodiment, a cooling mechanism 70 is provided on the second inner wall. This cooling mechanism 70 can be a cooling device such as a fan 735 or a liquid cooling pipe. It can reduce the temperature of the second inner wall to below the Curie temperature of the magnetothermal material 31. In this way, after the power generation component 30 loses its magnetism and moves toward the second inner wall due to the temperature of the first inner wall, the magnetothermal material 31 can be sufficiently cooled at the second inner wall. This allows the magnetothermal material 31 to be better remagnetized, and the power generation component 30 can be stably attracted by the magnetic component 13 after being near the second inner wall for a certain period of time. This ensures the reciprocating movement of the power generation component 30 between the first and second inner walls and ensures the stable and reliable power generation of the power generation device 100.

[0046] By setting up a cooling mechanism 70 to cool the second inner wall, the temperature of the second inner wall can be better kept below the Curie temperature of the magnetocaloric material 31, ensuring that the magnetocaloric material 31 can be remagnetized when the power generation component 30 moves toward the second inner wall, thereby further improving the structural stability and reliability of the power generation device 100.

[0047] See Figure 3 In one embodiment of this application, the cooling mechanism 70 includes a cooling structure 71 and a heat exchange component 73. The cooling structure 71 is installed on the second inner wall and has a cold air chamber 711 inside. The heat exchange component 73 is connected to the cooling structure 71 and is configured to exchange heat with the cold air chamber 711.

[0048] In this embodiment, the cooling mechanism 70 can house a cooling structure 71 with a certain cavity on the second inner wall. The heat exchange component 73 can exchange heat with the air inside the cold air chamber 711 of the cooling structure 71, achieving stable cooling of the cooling structure 71. The cooling structure 71 can be made of a material with good thermal conductivity, such as iron or copper alloy, so that the cooling mechanism 70 can quickly remove heat from the cooling structure 71 during heat exchange with the cold air chamber 711, achieving stable cooling of the cooling structure 71. The heat exchange component 73 can be a fan 735, a convection device, or a radiator, etc., which can cool the cooling structure 71 through convection heat exchange with the air inside the cold air chamber 711, ensuring stable remagnetization of the power generation component 30 at the second inner wall, and further improving the structural stability and reliability of the power generation device 100.

[0049] See Figure 3 In one embodiment of this application, the heat exchange component 73 includes an air duct 731, a heat absorption mechanism 733 and a fan 735. One end of the air duct 731 is connected to the cold air chamber 711, the fan 735 is connected to the other end of the air duct 731, and the heat absorption mechanism 733 is connected to the air duct 731 to absorb the heat inside the air duct 731.

[0050] In this embodiment, the cooling structure 71 can be connected to the air duct 731, so that the inner cavity of the air duct 731 is connected to the cold air chamber 711. Alternatively, one side of the cooling structure 71 can form an open opening communicating with the cold air chamber 711, with one end of the air duct 731 facing the open opening, so that the air in the air duct 731 can be stably delivered to the cold air chamber 711. By setting a fan 735 at the other end of the air duct 731 and connecting the heat absorption mechanism 733 inside the air duct 731, the heat absorption mechanism 733 can be located on the flow path of the gas inside the air duct 731. The heat absorption mechanism 733 can effectively remove the heat inside the air duct 731, so that the heat exchange component 73 can be driven by the fan 735 to blow the cold air in the air duct 731 towards the cold air chamber 711. The cold air and the air in the cold air chamber 711 are convectively exchanged to achieve the cooling function of the cooling structure 71.

[0051] The cooling mechanism can be equipped with an exhaust port, which can drive the cold air formed in the air duct 731 to the cold air chamber 711 through the fan 735, and use the cold air to force the high-temperature air in the cold air chamber 711 to be discharged from the exhaust port, thereby achieving heat exchange; or, the cold air can drive the original high-temperature air in the cold air chamber 711 to flow back into the air duct 731, and then use the heat absorption mechanism 733 to remove the heat in the air duct 731, thereby achieving stable heat exchange between the heat exchange component 73 and the cooling structure 71.

[0052] See Figure 3In one embodiment of this application, the heat absorption mechanism 733 includes a second heat exchange tube 7331 and a second medium. The second medium flows inside the second heat exchange tube 7331. The second heat exchange tube 7331 is provided with a heat absorption end and a heat release end. The heat absorption end is connected to the air duct 731.

[0053] In this embodiment, a heat-absorbing mechanism 733 is formed within the second heat exchange tube 7331 using a second medium. This second medium can be a refrigerant such as trans-1-chloro-3,3,3-trifluoropropylene or difluoromethane. By utilizing the phase change of the second medium within the second heat exchange tube 7331, the heat-absorbing mechanism 733 can perform both heat absorption and heat release functions, thus forming a heat-absorbing end and a heat-releasing end on the second heat exchange tube 7331. At the heat-absorbing end, the second medium can absorb heat from a liquid state and convert to a gaseous state, flowing towards the heat-releasing end. This allows the second medium to release heat from a gaseous state and convert back to a liquid state at the heat-releasing end, enabling the liquid second medium to flow towards the heat-absorbing end. This achieves stable circulation and conversion of the second medium within the second heat exchange tube 7331, realizing both heat absorption and heat release functions of the second heat exchange tube 7331.

[0054] By connecting the heat-absorbing end of the second heat exchange tube 7331 to the air duct 731, the heat in the air duct 731 can be stably removed through the heat-absorbing end of the second heat exchange tube 7331, achieving stable cooling of the gas in the air duct 731. This allows the heat exchange component 73 to use the fan 735 to more stably blow the cold air in the air duct 731 to the cold air chamber 711, ensuring the cooling effect of the second inner wall on the power generation component 30. This, in turn, ensures the stable reciprocating operation of the power generation component 30 within the movable cavity 11, achieving stable power generation operation of the power generation device 100, and further improving the overall structural stability and reliability of the power generation device 100. See Figures 1 to 3 In one embodiment of this application, the power generation device 100 further includes a heat exchanger 90, and the heat transfer mechanism 50 includes a first heat exchange tube 51, wherein the heat absorption tube 513 of the first heat exchange tube 51 and the heat release end of the second heat exchange tube 7331 are both disposed in the heat exchanger 90.

[0055] In this embodiment, the heat transfer mechanism 50 can provide a first medium within the first heat exchange tube 51, utilizing the phase transformation of the first medium within the first heat exchange tube 51 to enable the first heat exchange tube 51 to have both heat absorption and heat release functions. The section of the first heat exchange tube 51 that absorbs heat can be designated as the heat absorption tube 513, and the section that releases heat can be designated as the heat release tube 511. When the first medium flows to the heat absorption tube 513, it can be converted from a liquid state to a gaseous state, allowing the gaseous first medium to flow to the heat release tube 511. At the heat release tube 511, the gaseous first medium can be converted back to a liquid state. This allows the heat release tube 511 to be connected to the magnetic component 13, and the heat absorption tube 513 to be connected to heat sources such as waste heat in the environment. This allows the heat from the heat source to be fully absorbed and applied to the heating magnetic component 13, achieving the effect of waste heat recovery and utilization by the power generation device 100.

[0056] By setting up a heat exchanger 90, the heat-absorbing tube 513 of the first heat exchange tube 51 and the heat-releasing end of the second heat exchange tube 7331 are located inside the heat exchanger 90. The heat exchanger 90 can be used to exchange heat between the first heat exchange tube 51 and the second heat exchange tube 7331. This allows the heat released when the second medium is converted into a liquid state at the heat-releasing end to be transferred to the heat-absorbing tube 513 of the first heat exchange tube 51. This helps to supplement the heat-absorbing tube 513 with a certain amount of heat to accelerate the conversion of the first medium into a gaseous state within the heat-absorbing tube 513. This allows more heat to be used to ensure the phase conversion of the first medium within the first heat exchange tube 51. At the same time, it can fully recover the heat released by the second heat exchange tube 7331, better realize the effect of the power generation device 100 in generating electricity using thermal energy, and further improve the structural stability and reliability of the power generation device 100.

[0057] The first medium and the second medium can be matched refrigerants to ensure stable phase transition between the first medium and the second medium within a more reasonable temperature range. For example, the first medium can be difluorochloromethane and the second medium can be trans-1-chloro-3,3,3-trifluoropropylene; or, for another example, the first medium can be hexafluorobutene and the second medium can be difluoromethane, etc.

[0058] See Figure 3 In one embodiment of this application, a coil 713 is arranged inside the cold air chamber 711.

[0059] In this embodiment, by arranging coils 713 in the cooling chamber 711, the convective heat transfer area in the cooling chamber 711 can be effectively increased, achieving better cooling efficiency for the cooling structure 71. This allows the second inner wall to maintain a temperature lower than the Curie temperature of the magnetocaloric material 31, ensuring stable remagnetism when the power generation component 30 moves to the second inner wall. This, in turn, ensures stable movement of the power generation component 30 between the first and second inner walls, enabling reliable power generation by the power generation device 100 and further improving the structural stability and reliability of the power generation device 100.

[0060] See Figure 1 , Figure 2 and Figure 4 In one embodiment of this application, the power generation component 30 further includes a support structure 35 having a first surface and a second surface opposite to each other, a magnetothermal material 31 disposed on the first surface, and a coil 33 mounted on the second surface.

[0061] In this embodiment, the support structure 35 can be made of a magnetically insulating material, such as plastic. The support structure 35 can be shaped like a platform or a block, and can have a first surface and a second surface, so that the magnetothermal material 31 and the coil 33 can be respectively placed on the first surface and the second surface. In this way, the coil 33 can maintain a certain gap with the magnetic component 13 through the support structure 35, ensuring that the coil 33 stably cuts the magnetic field lines to generate electricity, and further improving the overall structural stability and reliability of the power generation device 100.

[0062] The magnetocaloric material 31 can be attached to the first surface or embedded in the first surface to ensure that the magnetocaloric material 31 can be better attracted by the magnetic element 13 and move the entire support structure 35 together when it generates magnetism below its Curie temperature. The coils 33 can be arranged in groups of at least one coil 33 and fixed on the second surface. The number of coils 33 and the magnetism of the magnetic element 13 can be set according to the power generation requirements of the power generation device 100 so that the power generation device 100 can better meet the required power generation needs.

[0063] See Figure 1 , Figure 2 and Figure 4 In one embodiment of this application, the power generation component 30 further includes a base 37 and a swing arm 39. The base 37 is disposed on one side of the main body 10, and the swing arm 39 is swayably connected to the base 37 and connected to the support structure 35. The swing arm 39 can pull the support structure 35 to move between the first inner wall and the second inner wall.

[0064] In this embodiment, the power generation component 30 can be provided with a base 37 on one side of the main body 10. The base 37 can serve as the connection base between the power generation device 100 and external electrical equipment. By using the swing arm 39 to connect the base 37 and the support structure 35, the swing arm 39 can stably connect the support structure 35 to reciprocate within the movable cavity 11, preventing the support structure 35 from detaching from the main body 10. At the same time, wires can be provided in the swing arm 39 to connect the coil 33 and the electrical equipment, which helps to better ensure the stable wiring of the power generation device 100, reduce the risk of wire entanglement, and further improve the overall structural stability and reliability of the power generation device 100.

[0065] A damping structure can be provided at the end of the swing arm 39 so that when the support structure 35 moves to the vicinity of the first inner wall and the second inner wall, the damping structure can provide a certain buffer, reduce the speed at which the support structure 35 comes into contact with the main body 10, and further improve the structural stability and reliability of the power generation device 100.

[0066] Conductive electrodes can be installed on the base 37, which can be electrically connected to the coil 33. The conductive electrodes and the coil 33 can be connected by wires installed on the swing arm 39, so that the coil 33 can generate stable electrical energy output. The output of electrical energy is achieved by using the conductive electrodes on the base 37, which further improves the structural stability and reliability of the power generation device 100.

[0067] According to the above embodiments, the working process of the power generation device 100 can be as follows: Figures 5 to 8 As shown.

[0068] exist Figure 5 In the first workflow shown, combined with Figure 3 The component identification indicates that the power generation component 30 can make the magnetothermal material 31 ferromagnetic under a certain low temperature. This can be achieved by using a cooling mechanism 70 to lower the temperature of the second inner wall, so that the power generation component 30 is cooled when it approaches the second inner wall, causing the magnetothermal material 31 to become ferromagnetic. This allows the power generation component 30 to be attracted to the magnetic component 13 and move towards it. At this time, the heat transfer mechanism 50 can transfer a certain amount of heat to the magnetic component 13, so that the magnetic component 13 can be heated to a certain temperature. This can be achieved by the first medium absorbing a certain amount of heat from the heat absorption pipe 513 and then vaporizing it into the heat release pipe 511. The first medium releases heat and liquefies during its flow in the heat release pipe 511, and then the heat released by the heat release pipe 511 is transferred to the magnetic component 13, thereby heating the magnetic component 13.

[0069] exist Figure 6 In the second workflow shown, combined with Figure 3As the power generation component 30 moves toward the magnetic component 13, it is affected by the heat from the magnetic component 13. At this time, the temperature of the magnetocaloric material 31 on the power generation component 30 rises. When the temperature exceeds the Curie temperature of the magnetocaloric material 31, the magnetocaloric material 31 gradually becomes paramagnetic, causing the power generation component 30 to gradually lose the attraction of the magnetic component 13, thus making the power generation component 30 tend to move toward the second inner wall. At this time, the first medium liquefied in the heat release tube 511 can flow back into the heat absorption tube 513, so that the heat transfer mechanism 50 can continuously release heat to the magnetic component 13 by utilizing the cyclic phase change of the first medium in the first heat exchange tube 51, thereby realizing the absorption and utilization of environmental waste heat. When the cooling mechanism 70 uses the heat exchange component 73 formed by the second heat exchange tube 7331 and the second medium to cooperate with the cooling structure 71 to cool the second inner wall, the heat-absorbing end of the second heat exchange tube 7331 can be combined with the cooling structure 71. The second medium absorbs heat at the heat-absorbing end of the second heat exchange tube 7331 to cool the cooling structure 71. Then, the second medium, after absorbing heat and vaporizing, can flow from the heat-absorbing end of the second heat exchange tube 7331 to the heat-releasing end. The phase change cycle of the second medium in the second heat exchange tube 7331 enables the cooling mechanism 70 to achieve stable cooling of the second inner wall.

[0070] exist Figure 7 In the third workflow shown, combined with Figure 3 The component identification is as follows: After the magnetocaloric material 31 is heated and becomes paramagnetic, the power generation component 30 gradually loses the attraction of the magnetic component 13 and can gradually move towards the second inner wall under the action of external forces such as gravity. At this time, the power generation device 100 can set a heat exchanger 90 between the heat transfer mechanism 50 and the cooling mechanism 70, so that the heat absorption tube 513 of the first heat exchange tube 51 and the heat release end of the second heat exchange tube 7331 are set in the heat exchanger 90. When the first medium liquefies and flows back into the heat absorption tube 513, the second medium can be simultaneously vaporized and flow to the heat release end. Thus, the heat exchanger 90 can be used to realize the heat exchange between the heat absorption tube 513 and the heat release end, and transfer the heat released by the heat release end of the second heat exchange tube 7331 to the heat absorption tube 513 of the first heat exchange tube 51. This is beneficial to improve the efficiency of the first medium absorbing heat and vaporizing in the heat absorption tube 513 and the efficiency of the second medium releasing heat and liquefying in the heat release end, and further improve the structural stability and reliability of the power generation device 100.

[0071] exist Figure 8 In the fourth workflow shown, combined with Figure 3The component identification is as follows: After the power generation component 30 moves to the second inner wall, the second inner wall can be continuously cooled by the cooling mechanism 70, thereby allowing the magnetocaloric material 31 on the power generation component 30 to cool down again and become ferromagnetic. As the magnetocaloric material 31 gradually regains its ferromagnetism, the power generation component 30 can be gradually attracted by the magnetic component 13 on the first inner wall, giving it a tendency to move towards the first inner wall. At this time, after the second medium liquefies by releasing heat at the heat-releasing end, it can flow from the heat-releasing end to the heat-absorbing end under the action of external forces such as gravity. By utilizing the heat absorption of the second medium at the heat-absorbing end, the second heat exchange tube 7331 can absorb and carry away the heat from the cooling structure 71, that is, it can carry away the heat transferred from the second inner wall to the cooling structure 71, thereby achieving cooling of the second inner wall. When the cooling structure 71 uses a duct 731 and a fan 735, the heat-absorbing end of the second heat exchange tube 7331 can be placed inside the duct 731. The heat-absorbing end absorbs heat from the air inside the duct 731, allowing the fan 735 to blow the low-temperature air from the duct 731 towards the cold air chamber 711 of the cooling structure 71, thus cooling the second inner wall. Simultaneously, when the heat transfer mechanism 50 uses the first medium and the first heat exchange tube 51 to heat the magnetic component 13, the first medium can absorb heat and vaporize from the heat-absorbing tube 513, flowing towards the heat-releasing tube 511. This achieves cyclic temperature control between the heat transfer mechanism 50 and the cooling mechanism 70, ensuring stable reciprocating movement of the power generation component 30 between the first and second inner walls. This allows the power generation component 30 to better cyclically cut the magnetic lines of the magnetic component 13 to generate electricity, further improving the structural stability and reliability of the power generation device 100.

[0072] The above description is merely an exemplary embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the technical concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A power generation device, characterized in that, include: The main body (10) has a movable cavity (11) formed therein. The movable cavity (11) is provided with a first inner wall and a second inner wall opposite to each other. The first inner wall is provided with a magnetic element (13). The power generation component (30) is located in the movable cavity (11) and is movably disposed between the first inner wall and the second inner wall. The power generation component (30) is provided with a coil (33) and a magnetothermal material (31). A heat transfer mechanism (50) is connected to the magnetic component (13) to transfer heat to the magnetic component (13).

2. The power generation device as described in claim 1, characterized in that, The heat transfer mechanism (50) includes a first heat exchange tube (51) and a first medium. The first medium flows in the first heat exchange tube (51). The first heat exchange tube (51) includes a heat-releasing tube (511) and a heat-absorbing tube (513) connected together. The heat-releasing tube (511) is connected to the magnetic component (13). The heat-absorbing tube (513) is located on one side of the main body component (10).

3. The power generation device as described in claim 2, characterized in that, The magnetic component (13) has a receiving cavity (131), and the heat dissipation tube (511) is at least partially inserted into the receiving cavity (131).

4. The power generation device as described in claim 2, characterized in that, The first heat exchange tube (51) includes at least two heat absorption tubes (513), and the first heat exchange tube (51) also includes a confluence tube (515) and at least two branch tubes (517). The confluence pipe (515) connects the output ends of at least two of the heat absorption pipes (513) and the input end of the heat release pipe (511), the output end of one of the branch pipes (517) is connected to the input end of one of the heat absorption pipes (513), and the input ends of at least two of the branch pipes (517) are connected to the output end of the heat release pipe (511).

5. The power generation device as described in claim 1, characterized in that, The power generation device also includes a cooling mechanism (70), which is connected to the second inner wall to reduce the temperature at the second inner wall.

6. The power generation device as described in claim 5, characterized in that, The cooling mechanism (70) includes a cooling structure (71) and a heat exchange component (73). The cooling structure (71) is installed on the second inner wall. A cold air chamber (711) is provided inside the cooling structure (71). The heat exchange component (73) is connected to the cooling structure (71) and is configured to exchange heat with the cold air chamber (711).

7. The power generation device as described in claim 6, characterized in that, The heat exchange assembly (73) includes an air duct (731), a heat absorption mechanism (733), and a fan (735). One end of the air duct (731) is connected to the cold air chamber (711), the fan (735) is connected to the other end of the air duct (731), and the heat absorption mechanism (733) is connected to the air duct (731) to absorb the heat inside the air duct (731).

8. The power generation device as described in claim 7, characterized in that, The heat absorption mechanism (733) includes a second heat exchange tube (7331) and a second medium. The second medium flows inside the second heat exchange tube (7331). The second heat exchange tube (7331) is provided with a heat absorption end and a heat release end. The heat absorption end is connected to the air guide tube (731).

9. The power generation device as described in claim 8, characterized in that, The power generation device also includes a heat exchanger (90), and the heat transfer mechanism (50) includes a first heat exchange tube (51), the heat absorption tube (513) of the first heat exchange tube (51) and the heat release end of the second heat exchange tube (7331) are both located in the heat exchanger (90).

10. The power generation device as claimed in claim 6, characterized in that, The air conditioning chamber (711) is equipped with coils (713).

11. The power generation device as claimed in any one of claims 1 to 10, characterized in that, The power generation component (30) also includes a support structure (35) having a first surface and a second surface opposite to each other, the magnetocaloric material (31) being disposed on the first surface and the coil (33) being mounted on the second surface.

12. The power generation device as claimed in claim 11, characterized in that, The power generation component (30) also includes a base (37) and a swing arm (39). The base (37) is located on one side of the main body (10). The swing arm (39) is swayably connected to the base (37) and connected to the support structure (35). The swing arm (39) can pull the support structure (35) to move between the first inner wall and the second inner wall.

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