CN214670047U

CN214670047U - Magnetomotive flexible circulating heat dissipation system and heat dissipation device

Info

Publication number: CN214670047U
Application number: CN202120658090.9U
Authority: CN
Inventors: 贺潇; 谭大治; 江浩
Original assignee: Fengmi Beijing Technology Co ltd
Current assignee: Fengmi Beijing Technology Co ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2021-11-09
Anticipated expiration: 2031-03-31

Abstract

The utility model relates to a magnetomotive flexible circulation heat dissipation system and a heat dissipation device, which comprises 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 sleeved on the fluid pipeline at intervals, and the electromagnetic pump is arranged on the fluid pipeline; the liquid metal fluid working medium comprises liquid metal added with magnetic particles or liquid alloy added with magnetic particles. The utility model discloses utilize circular telegram conductor can receive the effect drive liquid metal circulation flow of stress in the magnetic field and dispel the heat, adopt electromagnetic drive pump and multistage coil combined drive's mode, promote the circulation of magnetic liquid metal working medium and flow and dispel the heat to obtain stronger circulation driving force, and do not have the rotating part that traditional pump was taken, the reliability is high, and liquid metal's coefficient of heat conductivity is higher than liquid water far away simultaneously, can show the heat-transfer capacity and the radiating effect who improves the system.

Description

Magnetomotive flexible circulating heat dissipation system and heat dissipation device

Technical Field

The utility model relates to a heat dissipation correlation technique field, concretely relates to magnetomotive flexible cycle cooling system and heat abstractor.

Background

The laser projector is a projection product that uses a laser beam to transmit a picture, and its core components include a laser projector (optical engine), a lens, a DLP board, a sound box, and the like. The laser projector has red, green and blue lasers, wherein components such as a laser light source, a DMD processing chip and the like are high-power key devices of the laser projector. With the improvement of the brightness and resolution of the laser projector, it becomes more and more important how to effectively dissipate the heat generated by the key devices, control the temperature within the allowable temperature range, and control the noise of the whole projector. The general laser projector mostly adopts forced air cooling heat dissipation technology of heat pipe radiator and fan. Each high power component is provided with a separate heat dissipation module, i.e. a heat pipe radiator, heat is conducted from a heat source to the radiator fins through heat pipes, and a fan provides the air flow required by fin cooling.

The radiators of all heat sources of the traditional heat pipe radiator cooling system are designed independently, and the heat pipes adopt traditional copper pipes and are bent, flattened and the like to meet the requirement of special heat transfer paths.

The existing heat pipe radiator utilizes phase change and capillary action in the heat pipe to drive internal working media to flow, but the capacity of the fluid working media in the heat pipe is limited, and the maximum heat dissipation capacity Qmax is limited by the volume in the pipe; meanwhile, the heat dissipation capacity of the heat pipe is also influenced by bending; moreover, the length of the heat pipe itself is limited by the processing ability and the capillary driving force, and cannot be made too long. Because the traditional heat pipe is a rigid structure, a radiator and a heat transfer structure thereof must be independently designed for each heat source, and because of the factors such as the power difference between the heat source and the heat source, the space between the radiator and the like, the space for radiating in the whole machine is wasted, the low-power heat source does not need large radiator volume, a large amount of space is reserved around the radiator and is not utilized, and because of the space limitation, the radiator volume of the high-power heat source is insufficient, and the radiating area cannot be extended by other internal spaces. Meanwhile, due to the influence of the rigid structure of the heat pipe, the compatibility of the radiator is poor, and the requirements of various installation and application scenes cannot be met.

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 has the heat flux density of less than 0.02W/cm²The case (1) is valid; but forced convection air cooling improves the surface heat transfer coefficient by about one order of magnitude, and the heat flow density can be solved to 0.2W/cm²(ii) a The heat flux density can be solved to 0.8W/cm by organic liquid immersion type natural convection cooling²(ii) a The water is cooled by forced convection, and the heat flow density can be reduced to 8W/cm². The existing liquid cooling system mainly adopts deionized water as a circulating working medium, the heat conductivity coefficient of the water is 0.6W/m.K, and the water forcibly circulates through a water pump. In order to improve the cooling capacity of the liquid cooling system, except for increasing the heat dissipation area and improving the circulation flow, only working media with higher heat conductivity coefficients can be selected; the main working medium of the traditional liquid cooling system is deionized water, so that the cooling capacity of the liquid cooling system can be improved only by increasing the heat dissipation area and improving the circulation flow, and the heat dissipation capacity cannot be effectively improved under the condition of limited space. Meanwhile, rotating parts such as a water pump and the like are required to be added for driving water circulation, and the rotating parts are used for a long time and have reliability risks such as mechanical abrasion and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art not enough, provide a flexible circulation cooling system of magnetomotive and heat abstractor.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a magnetomotive flexible circulating heat dissipation system 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; the liquid metal fluid working medium comprises liquid metal added with magnetic particles or liquid alloy added with magnetic particles.

The utility model has the advantages that:

force of moving charge in magnetic field: the moving charge is acted by force in the magnetic field, namely the magnetic field has acting force on the moving charge. QvB, where F is the acting force, Q is the charge capacity, v is the charge moving speed, and B is the magnetic induction.

Stress of the electrified lead in the magnetic field: the energized conductor is also subjected to forces in the magnetic field, namely: a straight wire with the current intensity of I and the length of L is placed in a uniform external magnetic field with the magnetic induction intensity of B, the force applied to the wire is F ═ IBLsina, and a is an included angle between the current and the direction of the magnetic field. When the current direction is perpendicular to the magnetic field, F ═ IBL. The force applied to the energized conductor is essentially a resultant force on the charge that creates a directional movement of the current.

The utility model discloses utilize circular telegram conductor can the effect drive liquid metal circulation flow of stress to dispel the heat in the magnetic field, utilize the circular telegram coil to the attraction of magnetic substance on this basis, make multistage drive arrangement, promote the reinforcing heat dissipation that flows of magnetic metal liquid circulation. The mode that adopts electromagnetic drive pump and multistage metal coil to jointly drive promotes the circulation of magnetism liquid metal working medium and flows and dispel the heat to obtain stronger circulation driving force, and do not have the rotating part that traditional pump was taken, the reliability is high, and the coefficient of heat conductivity of liquid metal is higher than liquid water far away simultaneously, can show the heat-transfer capacity and the radiating effect that improve the system.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Furthermore, the electromagnetic pump adopts a rubidium iron boron magnetic steel permanent magnet magnetic pump with electrodes.

The beneficial effect of adopting the further scheme is that: the rubidium-iron-boron magnetic steel permanent magnet magnetic pump with the electrodes is adopted to replace a conventional water pump, no rotating part is needed, the problem of mechanical pump abrasion is solved, noise is avoided, and meanwhile corrosion resistance is achieved.

Furthermore, the electromagnetic pump comprises a support, the upper side and the lower side in the support are respectively provided with a rubidium iron boron magnetic steel permanent magnet, and the left side and the right side in the support are respectively provided with electrodes for electrifying the liquid metal fluid working medium in the pump groove.

Further, a yoke shielding cover is arranged outside the support.

Furthermore, the fluid pipeline is made of red copper or plastic.

The beneficial effect of adopting the further scheme is that: the red copper and the plastic can resist the corrosion of liquid metal and can be used for a long time.

Furthermore, the fluid pipeline is formed by welding a copper tube and a flexible corrugated pipe, and the flexible corrugated pipe is positioned at the bending part or/and the connecting part of the liquid metal fluid working medium circulation loop.

The beneficial effect of adopting the further scheme is that: the flexible corrugated pipe forms a flexible connecting pipe section in the circulation loop, and various different installation requirements are met.

A heat dissipation device comprises heat source equipment, a cold row and the heat dissipation system, wherein the heat source equipment is provided with a high-power device, and a 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.

The utility model has the advantages that: the heat dissipation device of the utility model utilizes the electromagnetic pump and the multistage coil to cooperate to drive the liquid metal fluid working medium to circularly flow in the fluid pipeline, takes away the heat of the high-power device, and carries out cooling and heat dissipation through the cold row; the arrangement of the electromagnetic pump, the multistage metal coils and the fluid pipeline in the heat source equipment can be free of one form, can be flexible and changeable, can expand the total area of the radiator, and can increase and decrease the number of the magnetic pumps and the coils, so that the circulating flow and the arrangement requirement are met.

Further, the cold drain includes a water drain radiator; the cooling row comprises a plurality of fins which are arranged at intervals in a plurality of rows, and the fluid pipelines are arranged in the intervals between two adjacent rows of fins in a bending mode.

The beneficial effect of adopting the further scheme is that: the water discharge radiator is adopted to replace each separated heat pipe radiator, so that the residual space in the chassis of the heat dissipation device can be utilized to the maximum extent to increase the heat dissipation area and improve the heat dissipation capacity of the system. The red copper can be used as the material of the water discharge pipeline of the radiator, can resist the corrosion of liquid metal, meets the long-term reliability requirement and has excellent heat-conducting property.

Further, the heat source device includes a projector, and the high power device includes a chip and a laser light source.

Further, the high-power device is multiple, and each high-power device is arranged at the same or an angle with the normal direction of the contact surface of the fluid pipeline.

The beneficial effect of adopting the further scheme is that: the normal direction of the contact surface of each high-power device and the fluid pipeline can be the same or arranged at an angle, the angled arrangement can be selected to be vertically arranged, and in any mode, the volume of the cold-row radiator can be expanded in a limited space, and even the cold-row radiator is made into a special-shaped structure to extend the heat transfer area and effectively enhance the heat transfer.

Drawings

FIG. 1 is a schematic diagram of a DC electromagnetic force driving scheme;

FIG. 2 is a first schematic diagram of the combined driving of the electromagnetic pump and the multi-stage coils;

FIG. 3 is a diagram of the internal structure of an electromagnetic pump according to a second principle of the combined driving of the electromagnetic pump and a multi-stage coil;

FIG. 4 is a first embodiment of a magnetomotive flexible circulating heat dissipation system;

FIG. 5 is a second top view of an embodiment of a magnetomotive flexible circulation heat dissipation system;

FIG. 6 is a side view of an embodiment of a magnetomotive force flexible circulation heat dissipation system;

FIG. 7 is a schematic view of a configuration of a cold row in cooperation with a fluid conduit;

FIG. 8 is a schematic view of the magnetic field distribution of an energized coil;

FIG. 9 is a schematic view of the direction of force applied to a current conducting wire in a magnetic field;

FIG. 10 is a front view of a flexible bellows;

fig. 11 is a perspective view of a flexible bellows.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a fluid conduit; 2. a metal coil; 3. an electromagnetic pump; 31. a support; 32. a rubidium iron boron magnetic steel permanent magnet; 33. an electrode; 34. a yoke shield; 35. screw holes; 4. a chip; 41. a housing; 42. an optical machine; 43. a lens; 44. a sound box; 45. a fan; 46. a laser light source; 5. cold discharging; 51. a fin; 6. a liquid metal fluid working medium circulation loop; 61. a flexible bellows;

A. A magnetic pole; B. the direction of the current; C. a magnetic field direction; D. the liquid metal is forced.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 2 and fig. 3, the magnetomotive force flexible circulation heat dissipation system of the present embodiment includes a fluid pipeline 1 for introducing a 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 sleeved 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 comprises liquid metal added with magnetic particles or liquid alloy added with magnetic particles.

The liquid metal or liquid alloy in this embodiment may be a low melting point liquid metal or liquid alloy, such as gallium or gallium-based alloy. The liquid metal or liquid alloy is used for replacing deionized water, oil and fluorocarbon organic liquid conventional fluid to be used as a basic working medium of the liquid cooling circulating system, so that the heat conductivity coefficient of the liquid cooling circulating working medium is further improved. The magnetic particles can be magnetic solid particles (such as Fe) with diameter of nanometer scale (below 10 nm) ₃O₄Ni, Co) and activator are uniformly dispersed in gallium or gallium-based liquid metal to form a liquid metal fluid working medium with magnetism, so that the circulating working medium has conductivity and magnetic conductivity. The magnetic particles are uniformly dispersed by adding the activating agent, the activating agent can be oleic acid, the nano magnetic particles can be wrapped in the magnetic metal fluid, repulsion force is formed between the nano magnetic particles, and agglomeration is prevented through surface tension.

Energizing the coil can generate a magnetic field along the axis of the coil, as shown in FIG. 8. The magnetic field has attraction effect on magnetic substances (such as iron, cobalt, nickel and the like), and when no other external force is applied, the coil is electrified, and the generated magnetic field can attract the magnetic substances to approach; if no obstacle exists, the magnetic substance can continuously accelerate along the direction of the magnetic force line; when the magnetic field is removed after power failure, the magnetic substance can move at a constant speed under the action of inertia.

Force of moving charge in magnetic field: the moving charge is acted by force in the magnetic field, namely the magnetic field has acting force on the moving charge. QvB, where F is the acting force, Q is the charge capacity, v is the charge moving speed, and B is the magnetic induction. The force of the electrified wire in the magnetic field is shown in figure 9: the energized conductor is also subjected to forces in the magnetic field, namely: a straight wire with the current intensity of I and the length of L is placed in a uniform external magnetic field with the magnetic induction intensity of B, the force applied to the wire is F ═ IBLsina, and a is an included angle between the current and the direction of the magnetic field. When the current direction is perpendicular to the magnetic field, F ═ IBL. The force applied to the energized conductor is essentially a resultant force on the charge that creates a directional movement of the current. The magnetic pump and the multistage metal coil jointly drive the magnetic liquid metal fluid working medium to circularly flow, the heat conductivity coefficient of the working medium is higher than that of water, and the heat exchange capacity is stronger; rotating parts such as a mechanical pump and the like are not arranged, so that the device is quieter and higher in reliability; the fluid is driven by the driving force of the magnetic pump and the auxiliary driving of the multi-stage metal coils, so the driving capability is superior to the situation of only electromagnetic driving of the magnetic pump; the installation arrangement of the multi-stage metal coils can be flexibly arranged according to actual conditions, and the number of the coils can be increased or decreased as appropriate, so that the best driving effect is achieved.

The electromagnetic pump 3 of this embodiment is a rubidium-iron-boron-magnetic-steel permanent magnet magnetic pump with an electrode 33. The rubidium-iron-boron magnetic steel permanent magnet magnetic pump with the electrodes is adopted to replace a conventional water pump, no rotating part is needed, the problem of mechanical pump abrasion is solved, noise is avoided, and meanwhile corrosion resistance is achieved.

As shown in fig. 2 and 3, the electromagnetic pump 3 includes a support 31, the upper and lower sides of the support 31 are respectively provided with a rubidium-iron-boron magnetic steel permanent magnet 32, and the left and right sides of the support 31 are respectively provided with an electrode 33 for energizing the liquid metal fluid working medium in the pump groove. A yoke shielding cover 34 is arranged outside the bracket 33, the yoke shielding cover 34 is formed by yoke iron locked on the outermost side of the bracket 31 from top to bottom, and the yoke shielding cover 34 is fixed by screws penetrating through the yoke shielding cover 34 and screw holes 35 on the bracket 31. The bracket 31 is made of engineering hard plastic.

The fluid pipeline 1 of this embodiment is made of red copper or plastic. The red copper and the plastic can resist the corrosion of liquid metal and can be used for a long time.

In the embodiment, the fluid pipeline 1 is formed by welding a copper tube and a flexible corrugated tube 61 to form a liquid metal fluid working medium circulation loop 6, and the flexible corrugated tube 61 is located at a bending part or/and a connecting part of the liquid metal fluid working medium circulation loop 6. The flexible corrugated pipe 61 can adopt a threaded pipe made of red copper, can realize a flexible bendable tubular structure, has good sealing performance, has repeated bending fatigue resistance, can be welded, can be used as a bendable flexible connecting part in a circulation loop, forms a flexible connecting pipe section in the circulation loop, and meets various installation requirements. The corrugated pipe made of red copper is selected to realize the bendable flexible connecting part of the circulating pipeline, the metal and the metal are welded, and the metal and the plastic can be connected in a mode of gluing or screwing with a sealing ring. The structure of the flexible bellows 61 is shown in fig. 10 and 11.

The connection of this embodiment fluid pipeline and the connection of other parts can adopt quick plug to connect, can realize the modularized design of pipeline, cold drawing, log raft, drive unit etc. and red copper is selected for use to the quick-operation joint material.

In the embodiment, a magnetic field along the axial direction of the coil can be generated by electrifying the metal coil, the magnetic field has an attraction effect on magnetic substances (such as iron, cobalt, nickel and the like), and when no other external force is applied, the metal coil is electrified, and the generated magnetic field can attract the magnetic substances to approach; if no obstacle exists, the magnetic substance can continuously accelerate along the direction of the magnetic force line; when the magnetic field is removed after power failure, the magnetic substance can move at a constant speed under the action of inertia. The principle of electromagnetic force driving is shown in fig. 1, where a is a magnetic pole, B is a current direction, C is a magnetic field direction, and D is a liquid metal force direction. Direct current can be used, a tube made of non-magnetic refractory metal (such as red copper) is used, permanent magnets are arranged above and below the tube, and magnetic lines of force are vertical to the tube. When current vertical to the tube and the magnetic force lines is introduced, mechanical force is generated to press and convey the conductive liquid metal out of the tube. In the electromagnetic force driven pump, current is directly conducted to the metal liquid from an external power supply through electrodes on two sides of the pump groove. When current passes through the conductor in the magnetic field, the conductor receives thrust of the magnetic field, the three directions are perpendicular to each other, and the magnitude of the thrust is F ═ I × B × L, wherein F is the thrust, I is the current, B is the magnetic induction intensity, and L is the flow channel width.

As shown in fig. 2 and 3, firstly, the multistage metal coil 4 is sequentially electrified and deenergized at certain time intervals through a control circuit, when fluid is accelerated to be close to the first coil under the traction action of a magnetic field, the first coil is deenergized, the second coil is electrified, and the fluid passes through the first coil under the inertia action and continues to move forwards under the traction action of the magnetic field of the second coil; when the fluid reaches the second coil, the second coil is powered off, the third coil is powered on, and the like, the fluid is subjected to the continuous acceleration action of the multi-stage coils and finally reaches the magnetic pump; when fluid passes through the pump groove, the electrode is electrified and is stressed in a magnetic field, and the fluid is further accelerated to be extruded out of the pump groove, so that the fluid circularly flows in the fluid channel.

The embodiment utilizes the electromagnetic pump as the power supply, adopts multistage metal coil as auxiliary power source, through control circuit's continuous power-on and outage in proper order, realizes pulling liquid metal fluid working medium, under the combined action of magnetic attraction and inertia, strengthens the circulation flow of liquid metal fluid working medium, and multistage metal coil can be considered according to the magnetic field intensity of actual production and suitably increases the yoke shield cover in the outer layer.

The installation layout of the electromagnetic pump and the multistage metal coils in the magnetomotive flexible circulating heat dissipation system can be not limited to one form, can be flexible and changeable, can expand the total area of a radiator, and can increase and decrease the number of the magnetic pumps and the number of the coils, thereby meeting the circulating flow and the arrangement requirement.

As shown in fig. 1-3, in this embodiment, the liquid metal is driven to circularly flow by the force exerted by the current conductor in the magnetic field for heat dissipation, and then the magnetic substance is attracted by the current coil to form a multi-stage driving device, so as to promote the circular flow of the magnetic metal liquid to enhance heat dissipation. The mode that adopts electromagnetic drive pump and multistage coil to jointly drive promotes the circulation of magnetic liquid metal working medium and flows and dispel the heat to obtain stronger circulation driving force, and do not have the rotating part that traditional pump was taken, the reliability is high, and the coefficient of heat conductivity of liquid metal is higher than liquid water far away simultaneously, can show heat transfer capacity and the radiating effect who improves the system.

Example 2

As shown in fig. 4-6, the heat dissipation apparatus of the present embodiment includes a heat source device, a cold row 5, and the heat dissipation system, wherein the heat source device has a high power device thereon, and the fluid pipe 1 passes through the high power device and the cold row 5 and transfers heat of the high power device to the cold row 5.

The cold row 5 of the present embodiment comprises a water-discharge radiator. The water discharge radiator is adopted to replace each separated heat pipe radiator, so that the residual space in the chassis of the heat dissipation device can be utilized to the maximum extent to increase the heat dissipation area and improve the heat dissipation capacity of the system. The red copper can be used as the material of the water discharge pipeline of the radiator, can resist the corrosion of liquid metal, meets the long-term reliability requirement and has excellent heat-conducting property.

As shown in fig. 4 to 7, the cooling row 5 of the present embodiment includes a plurality of fins 51, the plurality of fins are arranged in a plurality of rows at intervals, and the fluid conduit 1 is bent back and forth and arranged in the interval between two adjacent rows of fins, as shown in fig. 7.

The heat source device of the present embodiment includes a projector, the high power device includes the chip 4 and the laser light source 46, and the laser light source 46 has high power and needs to perform good heat dissipation.

As shown in fig. 4 to 6, the high power device of the present embodiment is plural, and each high power device is arranged at the same or an angle with respect to the normal direction of the contact surface of the fluid conduit 1. The normal direction of the contact surface of each high-power device and the fluid pipeline 1 can be the same or arranged at an angle, the angled arrangement can be selected to be vertically arranged, and in any mode, the volume of the cold-row radiator can be expanded in a limited space, and even the cold-row radiator is made into a special-shaped structure to expand the heat transfer area and effectively enhance the heat transfer.

The heat dissipation device of the embodiment drives the liquid metal fluid working medium to circularly flow in the fluid pipeline by utilizing the matching of the electromagnetic pump and the multistage coil, takes away the heat of the high-power device, and carries out cooling heat dissipation through the cold row; the arrangement of the electromagnetic pump, the multistage coil and the fluid pipeline in the heat source equipment can be free of one form, can be flexible and changeable, can expand the total area of the radiator, and can increase and decrease the number of the magnetic pump and the coil, so that the circulating flow and the arrangement requirement are met.

The power of a heat dissipation circulating system of the heat dissipation device is driven by the combination of electromagnetic action and multi-stage coil acceleration, and the arrangement positions of the magnetic power pump and the multi-stage coils can be flexibly arranged in the circuit according to actual conditions so as to meet the requirements of installation, avoidance and driving. Taking the flexible magnetomotive circulating heat dissipation system of the laser projector as an example, the installation and arrangement can be carried out by referring to three implementation modes shown in fig. 4-6. In the figure 4, the contact surface normal directions of the heat sources of the high-power devices are the same, and the contact surface normal directions of the heat sources in the figures 5 and 6 are mutually vertical, so that the volume of the cold-row radiator can be expanded in a limited space in any mode, and even the cold-row radiator is made into a special-shaped structure to extend the heat transfer area and effectively enhance the heat transfer.

The first implementation mode comprises the following steps: as shown in fig. 4, the laser projector includes a housing 41, and an optical engine 42, a lens 43, a sound box 44, a fan 45 and a plurality of high power devices disposed in the housing 41, where each high power device may be a chip 4, a laser light source 46, and the like, for example, the high power device on the left side is the chip 4, and the high power devices on the middle and right sides are the laser light source 46. The contact surface of each high-power device heat source is the same in the normal direction, namely, the high-power device heat sources are horizontally arranged, and the fluid pipeline 1 in contact with the high-power device heat sources can also adopt a serpentine structure which is bent back and forth. An electromagnetic pump 3 and a multi-stage metal coil 2 are arranged on a fluid pipeline 1 between adjacent high-power devices, and the bent parts are in transition connection by adopting a flexible corrugated pipe 61. The circulation loop may take the form of a serpentine bend and make contact with the cold row 5. Fans 45 are respectively arranged at two ends of the whole circulation loop, air is supplied from the fan 45 at one end, and air is discharged from the fan 45 at the other end.

The second embodiment: as shown in fig. 5, the laser projector includes a housing 41, and an optical engine 42, a lens 43, a sound box 44, a fan 45 and a plurality of high power devices disposed in the housing 41, where each high power device may be a chip 4, a laser light source 46, and the like, for example, the high power device on the left side is the chip 4, and the high power devices on the middle and right sides are the laser light source 46. The contact surfaces of the heat sources of the high-power devices are vertical in the normal direction, that is, some contact surfaces are arranged horizontally, some contact surfaces are arranged vertically, as shown in fig. 5, the contact surface of the heat source of the high-power device in the middle is arranged vertically, and the contact surfaces of the heat sources of the high-power devices on two sides are arranged horizontally in the normal direction. The fluid conduit 1, which is in contact with the heat source of the high power device, may also adopt a serpentine structure that bends back and forth. An electromagnetic pump 3 and a multi-stage metal coil 2 are arranged on a fluid pipeline 1 between adjacent high-power devices, and the bent parts are in transition connection by adopting a flexible corrugated pipe 61. The circulation loop may take the form of a serpentine bend and make contact with the cold row 5. Fans 45 are respectively arranged at two ends of the whole circulation loop, air is supplied from the fan 45 at one end, and air is discharged from the fan 45 at the other end.

The third embodiment is as follows: as shown in fig. 6, 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 of the high power devices may be a chip 4, a laser light source 46, and the like, for example, the high power device on the left side is the chip 4, and the high power devices on the middle and right sides are the laser light sources 46. The contact surfaces of the heat sources of the high-power devices are vertical in the normal direction, that is, some contact surfaces are arranged horizontally, some contact surfaces are arranged vertically, as shown in fig. 6, the contact surface of the heat source of the high-power device in the middle is arranged horizontally in the normal direction, and the contact surfaces of the heat sources of the high-power devices on two sides are arranged vertically in the normal direction. The fluid conduit in contact with the heat source of the high power device may also take the form of a serpentine structure that bends back and forth. An electromagnetic pump 3 and a multi-stage metal coil 2 are arranged on a fluid pipeline 1 between adjacent high-power devices, and the bent parts are in transition connection by adopting a flexible corrugated pipe 61. The circulation loop may take the form of a serpentine bend and make contact with the cold row 5. Fans 45 are respectively arranged at two ends of the whole circulation loop, air is supplied from the fan 45 at one end, and air is discharged from the fan 45 at the other end.

The installation layout of the radiator (cold exhaust), the fan, the electromagnetic driving pump and the multistage coil in the magnetomotive flexible circulating heat dissipation system can be not limited to one form, can be flexible and changeable, can expand the total area of the radiator, can increase and decrease the number of the magnetic pumps and the number of the coils, and meets the circulating flow and the arrangement requirement. Meanwhile, a red copper quick connector can be used for realizing the modular design of a heat source cold plate, a radiator (cold row) and a magnetic pump, and each unit is communicated and flexibly arranged through a flexible pipe and the quick connector.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. 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, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The magnetic power flexible circulating heat dissipation system is characterized by comprising a fluid pipeline, a plurality of metal coils and an electromagnetic pump, wherein the fluid pipeline is used for introducing liquid metal or liquid alloy added with magnetic particles, the metal coils are respectively sleeved on the fluid pipeline at intervals, and the electromagnetic pump is installed on the fluid pipeline.

2. The magnetomotive flexible circulating heat dissipation system according to claim 1, wherein the electromagnetic pump is a rubidium-iron-boron-magnetic-steel permanent magnet magnetic pump with electrodes.

3. The magnetomotive flexible circulating heat dissipation system according to claim 2, wherein the electromagnetic pump comprises a support, the upper side and the lower side of the support are respectively provided with a rubidium-iron-boron magnetic steel permanent magnet, and the left side and the right side of the support are respectively provided with electrodes for electrifying the liquid metal fluid working medium in the pump groove.

4. The magnetomotive flexible circulation heat dissipation system according to claim 3, wherein a yoke shielding cover is arranged outside the support.

5. The magnetomotive flexible circulation heat dissipation system according to any one of claims 1 to 4, wherein the fluid pipeline is made of red copper or plastic.

6. The magnetomotive flexible circulating heat dissipation system according to any one of claims 1 to 4, wherein the fluid pipeline is formed by welding a copper tube and a flexible corrugated tube, and the flexible corrugated tube is located at a bending part or/and a connecting part of the liquid metal fluid working medium circulation loop.

7. A heat dissipating apparatus comprising a heat source device having a high power device thereon, a cold row, and the heat dissipating system of any one of claims 1 to 6, wherein the fluid conduit passes through the high power device and the cold row and transfers heat from the high power device to the cold row.

8. The heat dissipating device of claim 7, wherein the cold drain comprises a water-draining heat sink; the cooling row comprises a plurality of fins which are arranged at intervals in a plurality of rows, and the fluid pipelines are arranged in the intervals between two adjacent rows of fins in a bending mode.

9. The heat dissipation device of claim 7, wherein the heat source device comprises a projector, and the high power device comprises a chip and a laser light source.

10. The heat dissipation device of claim 7, wherein the high power device is a plurality of high power devices, and each high power device is arranged at the same or an angle with respect to a normal direction of a contact surface of the fluid conduit.