A magnetic power flexible circulation heat dissipation system and heat dissipation device

Abstract

The present invention relates to a magnetically driven flexible circulation heat dissipation system and heat dissipation device, comprising a fluid pipeline for introducing a liquid metal fluid working medium, a plurality of metal coils, and an electromagnetic pump. The plurality of metal coils are spaced apart and sleeved on the fluid pipeline, and the electromagnetic pump is mounted on the fluid pipeline. The liquid metal fluid working medium comprises liquid metal or liquid alloy with added magnetic particles. The present invention utilizes the force exerted by a current-carrying conductor in a magnetic field to drive the liquid metal to circulate for heat dissipation. The electromagnetic drive pump is combined with a multi-stage coil drive method to drive the magnetic liquid metal working medium to circulate for heat dissipation, thereby achieving stronger circulation drive capability. Furthermore, the system lacks the rotating parts of traditional pumps, resulting in high reliability. Furthermore, the thermal conductivity of liquid metal is much higher than that of liquid water, significantly improving the system's heat transfer capacity and heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field related to heat dissipation, and in particular to a magnetically powered flexible circulation heat dissipation system and a heat dissipation device. Background Art

[0002] A laser projector is a projection product that uses a laser beam to project an image. Its core components include a laser projector (optical machine), lens, DLP board, and speakers. There are three types of lasers in a laser projector: red, green, and blue. Among them, components such as the laser light source and DMD processing chip are high-power key components of the laser projector. With the improvement of the brightness and resolution of laser projectors, it is becoming increasingly important to effectively dissipate the heat generated by these key components, control their temperature within the allowable temperature range, and control the noise of the entire machine. General laser projectors mostly use forced air cooling technology with a heat pipe radiator and a fan. Each high-power component is equipped with a separate heat dissipation module, namely a heat pipe radiator. The heat is transferred from the heat source to the radiator fins via the heat pipe, and the fan provides the air flow required for cooling the fins.

[0003] The radiators of each heat source in the traditional heat pipe radiator cooling system are designed independently. The heat pipe adopts traditional copper tubes and is bent, flattened and other processes to achieve special heat transfer path requirements.

[0004] Existing heat pipe radiators use phase change and capillary action within the heat pipe to drive the flow of the internal working fluid. However, the internal fluid capacity of the heat pipe is limited, and the maximum heat dissipation capacity Qmax is limited by the volume of the tube. At the same time, the heat dissipation capacity of the heat pipe is also affected by bending. In addition, the length of the heat pipe itself is limited by processing capabilities and capillary driving force and cannot be made too long. Because traditional heat pipes are rigid structures, each heat source must have its own heat sink and heat transfer structure designed independently. Moreover, due to factors such as the difference in power between heat sources and the spatial distance between heat sinks, the space used for heat dissipation within the entire device is wasted. Low-power heat sources do not require a large heat sink, and there is a large amount of unused space around the heat sink. Due to space constraints, the heat sink volume of high-power heat sources is insufficient, and other internal space cannot be used to expand the heat dissipation area. At the same time, due to the influence of the rigid structure of the heat pipe, the heat sink has poor compatibility and cannot meet the needs of various installation application scenarios.

[0005] When the allowable temperature difference between the surface of the electronic device and the environment is 40℃, the natural convection cooling of the air only reduces the heat flux density to less than 0.02W / cm 2 However, forced convection cooling increases the surface heat transfer coefficient by about an order of magnitude, and the heat flux density can be solved to 0.2W / cm 2 Organic liquid immersion natural convection cooling, heat flux density can be reduced to 0.8W / cm 2; Water forced convection cooling, heat flux density can be solved to 8W / cm 2 . Existing liquid cooling systems mainly use deionized water as the circulating working fluid. The thermal conductivity of water is 0.6W / m·K, and it is forced to circulate through a water pump. To improve the cooling capacity of the liquid cooling system, in addition to increasing the heat dissipation area and increasing the circulation flow, you can only choose a working fluid with a higher thermal conductivity. The main working fluid of the traditional liquid cooling system is deionized water. To improve the cooling capacity of the liquid cooling system, you can only increase the heat dissipation area and increase the circulation flow. In the case of limited space, the heat dissipation capacity cannot be effectively improved. At the same time, driving the water circulation requires the addition of rotating parts such as water pumps. Long-term use of rotating parts poses reliability risks such as mechanical wear. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a magnetic power flexible circulation heat dissipation system and a heat dissipation device in view of the deficiencies in the prior art.

[0007] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: a magnetically powered flexible circulation heat dissipation system, comprising a fluid pipeline for introducing liquid metal fluid working medium, a plurality of metal coils and an electromagnetic pump, wherein the plurality of metal coils are respectively arranged on the fluid pipeline at intervals, and the electromagnetic pump is installed on the fluid pipeline; the liquid metal fluid working medium comprises liquid metal with added magnetic particles or liquid alloy with added magnetic particles.

[0008] The beneficial effects of the present invention are:

[0009] The force on a moving charge in a magnetic field: A moving charge experiences a force in a magnetic field. This force is expressed as F = QvB, where F is the force, Q is the charge, v is the velocity of the charge, and B is the magnetic flux density.

[0010] The force on a current-carrying wire in a magnetic field: A current-carrying wire is also subject to a force in a magnetic field. For example, if a straight wire of length L carrying a current of intensity I is placed in a uniform external magnetic field of magnetic induction intensity B, the force on the wire is F = IBLsina, where a is the angle between the current and the magnetic field. When the current is perpendicular to the magnetic field, F = IBL. The force on a current-carrying wire is essentially the resultant force exerted by the charges moving in a directional manner, which creates the current.

[0011] The present invention utilizes the force exerted by a current-carrying conductor in a magnetic field to drive the circulation of liquid metal for heat dissipation. Furthermore, the attraction of a current-carrying coil on magnetic material is utilized to create a multi-stage drive device, which propels the magnetic liquid metal into circulation for enhanced heat dissipation. By combining an electromagnetically driven pump with a multi-stage metal coil, the magnetic liquid metal working fluid is driven to circulate for heat dissipation, achieving a stronger circulation drive capability. Furthermore, without the rotating parts of traditional pumps, the system is highly reliable. Furthermore, the thermal conductivity of liquid metal is much higher than that of liquid water, significantly improving the system's heat transfer capacity and heat dissipation.

[0012] On the basis of the above technical solution, the present invention can also be improved as follows.

[0013] Furthermore, the electromagnetic pump adopts a NdFeB permanent magnet magnetic pump with electrodes.

[0014] The beneficial effect of adopting the above further solution is: using a NdFeB permanent magnet magnetic pump with electrodes to replace a conventional water pump, which has no rotating parts, solves the problem of wear of mechanical pumps, is noiseless, and is corrosion-resistant.

[0015] Furthermore, the electromagnetic pump includes a bracket, and NdFeB permanent magnets are respectively provided on the upper and lower sides of the bracket, and electrodes are respectively provided on the left and right sides of the bracket for electrifying the liquid metal fluid in the pump groove.

[0016] Furthermore, a yoke shielding cover is provided outside the bracket.

[0017] Furthermore, the fluid pipeline is made of copper or plastic.

[0018] The beneficial effect of adopting the above further solution is that the copper and plastic can resist the corrosion of liquid metal and can be used for a long time.

[0019] Furthermore, the fluid pipeline is welded with a copper tube and a flexible bellows to form a liquid metal fluid working medium circulation loop, and the flexible bellows is located at the bends and / or connections of the liquid metal fluid working medium circulation loop.

[0020] The beneficial effect of adopting the above further solution is that the flexible bellows constitutes a flexible connecting pipe section in the circulation loop, meeting various installation requirements.

[0021] A heat dissipation device includes a heat source device, a cold row and the heat dissipation system. The heat source device is provided with a high-power device. The fluid pipeline passes through the high-power device and the cold row and transfers the heat of the high-power device to the cold row.

[0022] The beneficial effects of the present invention are as follows: the heat dissipation device of the present invention utilizes an electromagnetic pump and a multi-stage coil to drive the liquid metal fluid working medium to circulate in the fluid pipeline, taking away the heat of the high-power device, and cooling and dissipating the heat through the cold row; the arrangement of the electromagnetic pump, the multi-stage metal coil and the fluid pipeline in the heat source equipment is not limited to one form, and can be flexible and changeable, which can not only expand the total area of ​​the radiator, but also increase or decrease the number of magnetic pumps and coils to meet the circulation flow and layout requirements.

[0023] Furthermore, the radiator includes a water radiator; the radiator includes a plurality of fins, the plurality of fins are arranged in a plurality of rows at intervals, and the fluid conduit is bent and arranged in the intervals between two adjacent rows of fins.

[0024] The beneficial effect of adopting this further solution is that replacing separate heat pipe radiators with a water-drain radiator maximizes the use of the remaining space within the heat sink chassis to increase the heat dissipation area and improve the system's heat dissipation capacity. The radiator's water-drain pipe can be made of copper, which resists the corrosion of liquid metal, meets long-term reliability requirements, and has excellent thermal conductivity.

[0025] Furthermore, the heat source device includes a projector, and the high-power device includes a chip and a laser light source.

[0026] Furthermore, there are multiple high-power devices, and the contact surfaces of the high-power devices and the fluid pipeline are arranged in the same normal direction or at an angle.

[0027] The beneficial effect of adopting the above further solution is that the normal directions of the contact surfaces of each high-power device and the fluid pipeline can be the same or arranged at an angle. The angled arrangement can be vertical. In either case, the volume of the radiator can be expanded within a limited space, and even made into a special-shaped structure to extend the heat transfer area and effectively enhance heat transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is the schematic diagram of the DC electromagnetic force drive;

[0029] Figure 2 The driving principle of electromagnetic pump and multi-stage coil Figure 1 ;

[0030] Figure 3 The driving principle of electromagnetic pump and multi-stage coil Figure 2 Internal structure diagram of electromagnetic pump;

[0031] Figure 4 This is the first implementation method of the magnetic power flexible circulation heat dissipation system;

[0032] Figure 5 It is a top view of the second embodiment of the magnetic power flexible circulation heat dissipation system;

[0033] Figure 6 This is a side view of the second embodiment of the magnetic power flexible circulation heat dissipation system;

[0034] Figure 7 This is a schematic diagram of the coordination structure between the radiator and the fluid pipeline;

[0035] Figure 8 Schematic diagram of magnetic field distribution of energized coil;

[0036] Figure 9 Schematic diagram of the force direction of a current-carrying wire in a magnetic field;

[0037] Figure 10 This is a schematic diagram of the main structure of the flexible bellows;

[0038] Figure 11 Schematic diagram of the three-dimensional structure of the flexible bellows.

[0039] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0040] 1. Fluid pipeline; 2. Metal coil; 3. Electromagnetic pump; 31. Bracket; 32. NdFeB permanent magnet; 33. Electrode; 34. Yoke shield; 35. Screw hole; 4. Chip; 41. Housing; 42. Optical engine; 43. Lens; 44. Speaker; 45. Fan; 46. Laser light source; 5. Radiator; 51. Fin; 6. Liquid metal fluid circulation loop; 61. Flexible bellows;

[0041] A. Magnetic pole; B. Direction of current; C. Direction of magnetic field; D. Direction of force on liquid metal. DETAILED DESCRIPTION

[0042] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0043] Example 1

[0044] like Figure 2 and Figure 3 As shown, a magnetically powered flexible circulation heat dissipation system of this embodiment includes a fluid pipeline 1 for introducing liquid metal fluid working medium, a plurality of metal coils 2 and an electromagnetic pump 3, wherein the plurality of metal coils 2 are respectively arranged on the fluid pipeline 1 at intervals, and the electromagnetic pump 3 is installed on the fluid pipeline 1; the liquid metal fluid working medium includes liquid metal with added magnetic particles or liquid alloy with added magnetic particles.

[0045] The liquid metal or liquid alloy in this embodiment can be a low-melting-point liquid metal or liquid alloy, such as gallium or gallium-based alloy. Liquid metal or liquid alloy is used to replace conventional fluids such as deionized water, oil, and carbon-fluorine organic liquid as the basic working fluid of the liquid cooling circulation system, thereby further improving the thermal conductivity of the liquid cooling circulating working fluid. Magnetic particles can be magnetic solid particles (such as Fe3O4, Ni, Co) with a diameter of nanometers (less than 10 nanometers) and an activator are evenly dispersed in gallium or gallium-based liquid metal to form a liquid metal fluid working fluid with magnetism, thereby making the circulating working fluid conductive and magnetic. The addition of an activator allows the magnetic particles to be evenly dispersed. The activator can be oleic acid, which can wrap the nano-magnetic particles in the magnetic metal fluid, forming a repulsive force between each other, and preventing agglomeration through surface tension.

[0046] When the coil is energized, a magnetic field along the coil axis is generated, such as Figure 8 As shown in the figure, magnetic fields have an attractive effect on magnetic materials (such as iron, cobalt, and nickel). When the coil is energized without any other external forces, the generated magnetic field will attract the magnetic material. If there is no obstruction, the magnetic material will continue to accelerate along the magnetic lines of force. When the power is turned off and the magnetic field is removed, the magnetic material will move at a constant speed due to inertia.

[0047] The force on a moving charge in a magnetic field: A moving charge is subject to a force in a magnetic field, i.e., the magnetic field exerts a force on the moving charge. F = QvB, where F is the force, Q is the charge, v is the speed of the charge, and B is the magnetic induction intensity. Figure 9 As shown, a current-carrying conductor in a magnetic field is also subject to forces. Specifically, if a straight conductor of length L and current intensity I is placed in a uniform external magnetic field of magnetic induction intensity B, the force acting on the conductor is F = IBLsina, where a is the angle between the current and the magnetic field. When the current is perpendicular to the magnetic field, F = IBL. The force acting on the conductor is essentially the resultant force exerted by the charges that create the directional movement of the current. A magnetic pump and multi-stage metal coils jointly drive the circulation of a magnetic liquid metal fluid. This fluid has a higher thermal conductivity than water and offers enhanced heat transfer capabilities. Furthermore, without rotating parts like mechanical pumps, the system is quieter and more reliable. Because the fluid is driven by both the magnetic pump's driving force and the auxiliary drive of the multi-stage metal coils, the driving capability is superior to that of a magnetic pump alone. The multi-stage metal coils can be flexibly arranged according to actual conditions, and the number of coils can be increased or decreased as needed to achieve optimal driving results.

[0048] The electromagnetic pump 3 of this embodiment adopts a NdFeB permanent magnet magnetic pump with electrodes 33. The NdFeB permanent magnet magnetic pump with electrodes replaces the conventional water pump. It has no rotating parts, solves the wear problem of mechanical pumps, is noiseless, and is corrosion-resistant.

[0049] like Figure 2 and Figure 3 As shown, the electromagnetic pump 3 includes a bracket 31. Neodymium iron boron permanent magnets 32 are located on the upper and lower sides of the bracket 31. Electrodes 33 are located on the left and right sides of the bracket 31 to energize the liquid metal fluid in the pump channel. A yoke shield 34 is located outside the bracket 33. The yoke shield 34 is composed of yokes that are locked to the outermost sides of the bracket 31. The yoke shield 34 is secured with screws passing through screw holes 35 in the yoke shield 34 and the bracket 31. The bracket 31 is made of engineering hard plastic.

[0050] The fluid conduit 1 of this embodiment is made of copper or plastic. Copper and plastic can resist the corrosion of liquid metal and can be used for a long time.

[0051] The fluid pipeline 1 of this embodiment is welded with a copper tube and a flexible bellows 61 to form a liquid metal fluid working medium circulation loop 6, and the flexible bellows 61 is located at the bend or / and connection of the liquid metal fluid working medium circulation loop 6. The flexible bellows 61 can be made of a threaded tube made of copper, which can realize a flexible and bendable tubular structure, and has good sealing performance, fatigue resistance against repeated bending, can be welded, and can be used as a flexible and flexible connection part in the circulation loop, forming a flexible connection pipe section in the circulation loop to meet various installation requirements. A bellows made of copper is selected to realize the flexible and flexible connection part of the circulation pipeline, and welding is used between metals. Metals and plastics can be bonded or connected by screws and sealing rings. The structure of the flexible bellows 61 is as shown in the figure. Figure 10 and Figure 11 shown.

[0052] In this embodiment, the connection of the fluid pipeline and other components can adopt quick pluggable connectors, which can realize the modular design of pipelines, cold plates, water drains, drive components, etc. The quick connector is made of copper.

[0053] In this embodiment, a magnetic field along the coil axis is generated by energizing the metal coil. The magnetic field has an attractive effect on magnetic materials (such as iron, cobalt, nickel, etc.). When there is no other external force, the magnetic field generated by energizing the metal coil will attract the magnetic material to approach; if there is no obstacle, the magnetic material will continue to accelerate along the direction of the magnetic force line; when the power is turned off and the magnetic field is removed, the magnetic material will move at a constant speed under the action of inertia. The electromagnetic force driving principle is as follows Figure 1As shown, A is the magnetic pole, B is the direction of the current, C is the direction of the magnetic field, and D is the direction of the force on the liquid metal. Direct current can be used, using a tube made of a non-magnetic refractory metal (such as copper) with permanent magnets above and below, and the magnetic lines of force perpendicular to the tube. When a current is passed perpendicular to both the tube and the magnetic lines of force, a mechanical force is generated, forcing the conductive liquid metal out of the tube. In an electromagnetically driven pump, current is directly transmitted from an external power source to the metal liquid via electrodes on both sides of the pump groove. When current flows through a conductor in a magnetic field, the conductor will be subjected to a thrust from the magnetic field. The three directions are perpendicular to each other, and the magnitude of the thrust is F = I × B × L, where F is the thrust, I is the current, B is the magnetic induction intensity, and L is the flow channel width.

[0054] Electromagnetic force and multi-stage coils jointly drive the pump Figure 2 and Figure 3 As shown, first, the multi-stage metal coil 4 is energized and de-energized in sequence at certain time intervals through the control circuit. When the fluid is accelerated and approaches the first coil under the traction of the magnetic field, the first coil is de-energized and the second coil is energized. The fluid passes through the first coil under the action of inertia and continues to move forward under the traction of the magnetic field of the second coil; when the fluid reaches the second coil, the second coil is de-energized and the third coil is energized, and so on. The fluid will be continuously accelerated by the multi-stage coils and eventually reach the magnetic pump; when the fluid passes through the pump groove, it is energized by the electrode and subjected to force in the magnetic field, and is further accelerated and squeezed out of the pump groove, thereby realizing the circulation of the fluid in the fluid channel.

[0055] This embodiment utilizes an electromagnetic pump as a power source and a multi-stage metal coil as an auxiliary power source. By sequentially powering on and off the control circuit, traction of the liquid metal fluid is achieved. Under the combined effects of magnetic attraction and inertia, the circulation flow of the liquid metal fluid is enhanced. The multi-stage metal coil may consider adding a yoke iron shielding cover on the outer layer according to the actual strength of the magnetic field generated.

[0056] The installation layout of the electromagnetic pump and multi-stage metal coil inside the magnetic power flexible circulation cooling system is not limited to one form, but can be flexible and changeable. It can not only expand the total area of ​​the radiator, but also increase or decrease the number of magnetic pumps and coils to meet the circulation flow and layout requirements.

[0057] like Figure 1-Figure 3As shown, this embodiment utilizes the force exerted by a current-carrying conductor in a magnetic field to drive the circulation of liquid metal for heat dissipation. Furthermore, the attraction of a current-carrying coil to a magnetic material is utilized to create a multi-stage drive device, which propels the magnetic liquid metal into circulation for enhanced heat dissipation. By combining an electromagnetically driven pump with a multi-stage coil drive, the magnetic liquid metal working fluid circulates for heat dissipation, achieving enhanced circulation drive capability. Without the rotating parts of traditional pumps, the system boasts high reliability. Furthermore, the thermal conductivity of liquid metal is significantly higher than that of liquid water, significantly improving the system's heat transfer and heat dissipation.

[0058] Example 2

[0059] like Figure 4-Figure 6 As shown, a heat dissipation device of this embodiment includes a heat source device, a cold row 5 and the heat dissipation system. The heat source device has a high-power device. The fluid pipeline 1 passes through the high-power device and the cold row 5 and transfers the heat of the high-power device to the cold row 5.

[0060] The radiator 5 in this embodiment comprises a water-filled radiator. Using a water-filled radiator instead of separate heat pipe radiators maximizes the use of the remaining space within the heat sink chassis, increasing the heat dissipation area and improving the system's heat dissipation capacity. Copper can be used as the pipe material for the radiator's water-filled radiator, which resists the corrosive effects of liquid metal, meets long-term reliability requirements, and offers excellent thermal conductivity.

[0061] In this embodiment, the connection of the fluid pipeline and other components can adopt quick pluggable connectors, which can realize the modular design of pipelines, cold plates, water drains, drive components, etc. The quick connector is made of copper.

[0062] like Figure 4-7 As shown, the cooling radiator 5 of this embodiment includes a plurality of fins 51, which are arranged in multiple rows at intervals, and the fluid pipe 1 is bent back and forth and arranged in the interval between two adjacent rows of fins, as shown in FIG. Figure 7 shown.

[0063] The heat source device in this embodiment includes a projector, and the high-power device includes a chip 4 and a laser light source 46. The laser light source 46 has high power and requires good heat dissipation.

[0064] like Figure 4-Figure 6 As shown, in this embodiment, there are multiple high-power devices, and the contact surfaces of each high-power device and the fluid pipeline 1 are arranged in the same normal direction or at an angle. The contact surfaces of each high-power device and the fluid pipeline 1 can be arranged in the same normal direction or at an angle. The angled arrangement can be arranged vertically. In either case, the volume of the radiator can be expanded within a limited space, and even a special-shaped structure can be made to extend the heat transfer area and effectively enhance heat transfer.

[0065] The heat dissipation device of this embodiment utilizes an electromagnetic pump and a multi-stage coil to drive the liquid metal fluid to circulate in the fluid pipeline, remove the heat of the high-power device, and cool and dissipate the heat through the radiator; the arrangement of the electromagnetic pump, multi-stage coil and fluid pipeline in the heat source equipment is not limited to one form, and can be flexible and changeable, which can not only expand the total area of ​​the radiator, but also increase or decrease the number of magnetic pumps and coils to meet the circulation flow and layout requirements.

[0066] The power of the heat dissipation circulation system of the heat dissipation device of this embodiment comes from the combined drive of electromagnetic action and multi-stage coil acceleration. The layout position of the magnetic power pump and the multi-stage coil can be flexibly arranged in the loop according to actual conditions to meet the installation, avoidance and driving requirements. Taking the flexible magnetic power circulation heat dissipation system of the laser projector as an example, you can refer to Figure 4-6 Three implementation methods are used for installation and arrangement. Figure 4 The contact surface normals of the heat sources of each high-power device are the same. Figure 5 and Figure 6 The contact surface normals of each heat source are perpendicular to each other. Regardless of the method, the volume of the radiator can be expanded within a limited space, and even made into a special-shaped structure to extend the heat transfer area and effectively enhance heat transfer.

[0067] Implementation method 1: Figure 4 As shown, the laser projector includes a housing 41 and an optical engine 42, a lens 43, a speaker 44, a fan 45 and a plurality of high-power devices arranged in the housing 41. Each high-power device can be a chip 4, a laser light source 46 or other device. For example, the high-power device on the left is a chip 4, and the high-power devices on the middle and right are laser light sources 46. The contact surface normals of the heat sources of each high-power device are the same, that is, they are all arranged horizontally. The fluid pipeline 1 in contact with the heat source of the high-power device can also adopt a serpentine structure that bends back and forth. An electromagnetic pump 3 and a multi-stage metal coil 2 are provided on the fluid pipeline 1 between adjacent high-power devices, and a flexible bellows 61 is used for transition connection at the bend. The circulation loop can be serpentine and in contact with the radiator 5. Fans 45 are provided at both ends of the entire circulation loop, with air entering from the fan 45 at one end and air exiting from the fan 45 at the other end.

[0068] Implementation method 2: Figure 5 As shown, the laser projector includes a housing 41 and an optical engine 42, a lens 43, a speaker 44, a fan 45 and a plurality of high-power devices arranged in the housing 41. Each high-power device can be a chip 4, a laser light source 46 or other devices. For example, the high-power device on the left is the chip 4, and the high-power devices on the middle and right are laser light sources 46. The contact surface of each high-power device heat source is vertical, that is, some contact surfaces are arranged horizontally, and some contact surfaces are arranged vertically, such as Figure 5In the figure, the contact surface normal of the heat source of the high-power device in the middle is arranged vertically, and the contact surface normal of the heat source of the high-power devices on both sides is arranged horizontally. The fluid pipeline 1 in contact with the heat source of the high-power device can also adopt a serpentine structure that bends back and forth. An electromagnetic pump 3 and a multi-stage metal coil 2 are provided on the fluid pipeline 1 between adjacent high-power devices, and a flexible bellows 61 is used for transition connection at the bend. The circulation loop can be serpentine-shaped and in contact with the cold radiator 5. Fans 45 are provided at both ends of the entire circulation loop, with air entering from the fan 45 at one end and air exiting from the fan 45 at the other end.

[0069] Implementation method three: Figure 6 As shown, the laser projector includes a housing 41 and an optical engine 42, a fan 45, and a plurality of high-power devices disposed in the housing 41. Each high-power device may be a chip 4, a laser light source 46, or other devices. For example, the high-power device on the left is the chip 4, and the high-power devices in the middle and on the right are laser light sources 46. The contact surfaces of the heat sources of each high-power device are vertical, that is, some contact surfaces are arranged horizontally, and some contact surfaces are arranged vertically, such as Figure 6 In the figure, the contact surface normal of the heat source of the high-power device in the middle is arranged horizontally, and the contact surface normal of the heat source of the high-power devices on both sides is arranged vertically. The fluid pipeline in contact with the heat source of the high-power device can also adopt a serpentine structure that bends back and forth. An electromagnetic pump 3 and a multi-stage metal coil 2 are provided on the fluid pipeline 1 between adjacent high-power devices, and a flexible bellows 61 is used for transition connection at the bend. The circulation loop can be serpentine-shaped and in contact with the cold radiator 5. Fans 45 are provided at both ends of the entire circulation loop, and air is taken in from the fan 45 at one end and air is discharged from the fan 45 at the other end.

[0070] The magnetic-powered flexible circulation cooling system's internal radiator (radiator), fan, electromagnetic-driven pump, and multi-stage coil installation layout are not restricted to a single format; they can be flexible and adaptable, allowing for expansion of the radiator's total area and the increase or decrease of the number of magnetic pumps and coils to meet circulation flow and layout requirements. Furthermore, copper quick connectors can be used to achieve a modular design of the heat source cold plate, radiator (radiator), and magnetic pump. Finally, each unit is connected through flexible tubing and quick connectors to achieve flexible circulation loop layout.

[0071] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0072] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0073] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0074] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0075] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0076] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A magnetic power flexible circulation heat dissipation system, characterized in that: The invention comprises a fluid pipeline for introducing a liquid metal fluid working medium, a plurality of metal coils and an electromagnetic pump, wherein the plurality of metal coils are respectively sleeved on the fluid pipeline at intervals, and the electromagnetic pump is installed on the fluid pipeline; the liquid metal fluid working medium comprises liquid metal with added magnetic particles or liquid alloy with added magnetic particles; The multi-stage metal coils are energized and de-energized in sequence through the control circuit. When the fluid is accelerated and approaches the first coil under the traction of the magnetic field, the first coil is de-energized and the second coil is energized. The fluid passes through the first coil under the action of inertia and continues to move forward under the traction of the magnetic field of the second coil; when the fluid reaches the second coil, the second coil is de-energized and the third coil is energized, and so on. The fluid will be continuously accelerated by the multi-stage coils and eventually reach the magnetic pump; when the fluid passes through the pump groove of the magnetic pump, it is energized by the electrodes of the magnetic pump and subjected to force in the magnetic field, and is further accelerated and squeezed out of the pump groove, realizing the circulation of the fluid in the fluid channel.

2. A magnetic power flexible circulation heat dissipation system according to claim 1, characterized in that: The electromagnetic pump adopts a NdFeB permanent magnet magnetic pump with electrodes.

3. A magnetic power flexible circulation heat dissipation system according to claim 2, characterized in that: The electromagnetic pump comprises a bracket, wherein upper and lower sides of the bracket are respectively provided with permanent magnets made of neodymium iron boron magnets, and left and right sides of the bracket are respectively provided with electrodes for electrifying the liquid metal fluid in the pump groove.

4. A magnetic power flexible circulation heat dissipation system according to claim 3, characterized in that: A yoke iron shielding cover is provided outside the bracket.

5. A magnetic power flexible circulation heat dissipation system according to any one of claims 1 to 4, characterized in that: The fluid pipeline is made of copper or plastic.

6. A magnetic power flexible circulation heat dissipation system according to any one of claims 1 to 4, characterized in that: The fluid pipeline is welded with a copper tube and a flexible bellows to form a liquid metal fluid working medium circulation loop, and the flexible bellows is located at the bending part and / or the connection part of the liquid metal fluid working medium circulation loop.

7. A heat dissipation device, characterized in that: The heat dissipation system comprises a heat source device, a cold row and any one of claims 1 to 6, wherein the heat source device is provided with a high-power device, the fluid pipeline passes through the high-power device and the cold row and transfers the heat of the high-power device to the cold row.

8. The heat dissipation device according to claim 7, characterized in that: The radiator comprises a water radiator; the radiator comprises a plurality of fins, the plurality of fins are arranged in a plurality of rows at intervals, and the fluid conduit is bent and arranged in the intervals between two adjacent rows of fins.

9. The heat dissipation device according to claim 7, characterized in that: The heat source device includes a projector, and the high-power device includes a chip and a laser light source.

10. The heat dissipation device according to claim 7, characterized in that: There are multiple high-power devices, and the contact surfaces of the high-power devices and the fluid pipeline are arranged in the same normal direction or at an angle.

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