Magnetic fluid heat dissipation device driven by electromagnetic field

Abstract

The utility model discloses an electromagnetic field driven magnetofluid heat dissipation device, which comprises a heat source end, a heat dissipation end and an annular heat pipe group connected with the heat source end and the heat dissipation end, and is characterized in that the annular heat pipe group comprises an annular pipe with an annular flow path and magnetofluid sealed in the annular flow path; and the electromagnetic coil is arranged in the heat dissipation device and is in electric control connection with an external pulse power supply generator. According to the structure, the magnetic fluid carries heat generated by the heat source end to the heat dissipation end and releases the heat through the magnetic field force of the electromagnetic coil, then the heat flows back to the heat source end through the annular pipe, and efficient heat transfer and heat dissipation are achieved; the anti-gravity capability is achieved, external energy input is not needed, and energy conservation and environment protection are achieved; and noise and water leakage risks are also avoided.

Description

Technical Field

[0001] The utility model relates to the field of heat dissipation of electronic equipment, in particular to a magnetic fluid heat dissipation device driven by an electromagnetic field. Background Art

[0002] Heat dissipation has always been an important factor restricting its performance and stability. In many electronic equipment fields, most heat dissipation module designs use liquid cooling or heat pipes for heat conduction. When liquid cooling is used for heat conduction, water circulation needs to be improved, including the need for traditional pumps to promote liquid circulation, so noise and water leakage risks are inevitable; if heat pipes are used for heat conduction, the amount of heat conduction cannot be adjusted according to the heat dissipation requirements, the adaptability is poor, the heat dissipation efficiency is low, and the actual heat dissipation requirements cannot be met. Therefore, a new heat dissipation device is needed, which has the ability to resist gravity and can operate stably under various environmental conditions; it does not require traditional pumps to reduce noise and reduce the risk of water leakage; and it has the advantages of adapting to different heat dissipation requirements, can efficiently transfer heat from the heat source end to the heat dissipation end, and effectively release heat to achieve heat dissipation. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an electromagnetic field driven magnetic fluid heat dissipation device. The magnetic fluid uses the magnetic field force of the electromagnetic coil to carry the heat generated by the heat source end to the heat dissipation end and release the heat, and then flows back to the heat source end through the annular tube, thereby realizing efficient heat transfer and heat dissipation.

[0004] The technical solution of the utility model is:

[0005] The heat dissipation device A includes a heat source end, a heat dissipation end and an annular heat pipe group connecting the heat source end and the heat dissipation end, the annular heat pipe group includes an annular pipe with an annular flow path and a magnetic fluid sealed in the annular flow path; and also includes an electromagnetic coil arranged in the heat dissipation device A, and the electromagnetic coil is electrically connected to an external pulse power generator.

[0006] Its further technical solution is:

[0007] The electromagnetic coil is arranged at the heat dissipation end, and the electromagnetic coil is electrically connected to an external pulse power generator.

[0008] Its further technical solution is:

[0009] The electromagnetic coil is arranged at the heat source end, and the electromagnetic coil is electrically connected to an external pulse power generator.

[0010] Its further technical solution is:

[0011] The magnetic particles of the magnetic fluid are magnet powder.

[0012] Its further technical solution is:

[0013] The annular tube comprises a heat conduction section and a reflux section. The magnetic fluid flows from the heat source end to the heat dissipation end through the heat conduction section, and then flows from the heat dissipation end to the heat source end through the reflux section.

[0014] Its further technical solution is:

[0015] A plurality of groups of electromagnetic coils are respectively arranged on the heat conduction section and the reflux section. The electromagnetic coils at different positions have different structures and parameters, and the magnetic field strengths generated are also different.

[0016] Its further technical solution is:

[0017] It also includes a control system for controlling the current of the electromagnetic coil, and the control system is electrically connected to each group of the pulse power generators.

[0018] Its further technical solution is:

[0019] The annular tube is made of aluminum alloy material, copper alloy material, or stainless steel material.

[0020] The beneficial technical effect of the utility model is as follows: an electromagnetic coil is arranged between the heat source end and the heat dissipation end, and a magnetic fluid is arranged in the annular tube. When the electromagnetic coil is energized, the magnetic field force generated pushes the magnetic fluid from the heat source end to the heat dissipation end, and the magnetic fluid flows along with the heat and releases the heat at the heat dissipation end. Afterwards, the magnetic fluid flows back to the heat source end through the annular tube, forming a closed heat transfer cycle. Due to the action of the electromagnetic coil, the magnetic fluid has strong dynamics during the transfer process, so the heat transfer efficiency is high and the heat dissipation effect is significant; no external energy input is required, and heat transfer can be achieved by only using the electrical energy of the electromagnetic coil, which is energy-saving and environmentally friendly; it is suitable for various occasions requiring heat dissipation treatment, especially for electronic equipment, computers, automobile engines and other fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0023] A. Heat dissipation device;

[0024] 1. Heat source end; 2. Heat dissipation end; 3. Ring heat pipe group; 31. Ring pipe; 311. Heat conduction section; 312. Reflux section; 32. Magnetic fluid; 4. Electromagnetic coil. DETAILED DESCRIPTION

[0025] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0026] like Figure 1 to Figure 2 As shown, the electromagnetic field driven magnetic fluid heat dissipation device of the utility model, the heat dissipation device A includes a heat source end 1, a heat dissipation end 2 and an annular heat pipe group 3 connecting the heat source end 1 and the heat dissipation end 2, the annular heat pipe group 3 includes an annular pipe 31 with an annular flow path and a magnetic fluid 32 sealed in the annular flow path.

[0027] The magnetic fluid 32 has good thermal conductivity and magnetic properties. In this embodiment, the nano-magnetic particles and the base liquid of the magnetic fluid 32 are magnetic powder and water respectively.

[0028] The heat source end 1 is provided with a heat conduction unit, which can be a heat conduction plate, which is in contact with the heat source, and the heat conduction plate and the annular tube can be connected thermally. Specifically, the heat conduction plate is made of a material with good thermal conductivity, and the thickness of the heat conduction plate in the Z-axis direction is equal to the thickness of the annular tube in the Z-axis direction. After the heat conduction plate absorbs heat from the heat source, it transfers the heat to the working fluid through the annular tube, and then the working fluid takes the heat away, so as to achieve the purpose of quickly and effectively cooling the heat source; the heat conduction unit can also be other heat conduction devices, which are not limited here.

[0029] The heat dissipation end 2 is provided with a heat dissipation device for receiving and releasing the heat carried by the magnetic fluid 32. The heat dissipation device can be a heat dissipation fin group formed by stacking multiple groups of heat dissipation fins, and an annular tube is passed through each heat dissipation fin; the heat dissipation device can also be other fluid heat exchangers, and are respectively connected to the heat source end through two groups of annular tubes, which is not limited here.

[0030] The annular tube 31 includes a heat conduction section 311 and a reflux section 312, and an electromagnetic coil 4 is provided on each of the heat conduction section 311 and the reflux section 312. The electromagnetic coil 4 is electrically connected to an external pulse power generator, and the pulse power generator outputs a set voltage to the electromagnetic coil 4, so that the magnetic field generated by the electromagnetic coil 4 magnetizes the magnetic fluid 32 in the annular tube 31. Under the driving force of the magnetic field force, the magnetic fluid 32 flows from the heat source end 1 to the heat dissipation end 2 through the annular flow path. At the heat dissipation end 2, the magnetic fluid 32 releases heat and then flows from the heat dissipation end 2 to the heat source end 1 through the annular flow path. The magnetic field force generated by the electromagnetic coil 4 drives the magnetic fluid 32 to circulate in the annular tube 31.

[0031] The electromagnetic coil 4 can control the size and direction of the magnetic field as required to adjust the flow speed and direction of the magnetic fluid 32 .

[0032] like Figure 2 As shown, the heat conducting section 311 near the heat source end 1 and the return section 312 near the heat dissipation end 2 are both provided with an electromagnetic coil 4, and the magnetic fluid 32 is located at the heat source to absorb heat. Under the driving action of the magnetic field force, the magnetic fluid 32 with increased temperature moves from the heat source end 1 to the heat dissipation end 2 through the annular flow path, and is located at the heat dissipation end 2 to release the heat carried. At this time, the magnetic fluid 32 with a lower temperature is magnetized when approaching the magnetic field of the return section 312, and is affected by the magnetic field force. The magnetic fluid 32 then moves from the heat dissipation end 2 to the heat source end 1 through the annular flow path to complete a group of magnetic fluids 32 located in the annular tube 31. The circulation and heat exchange cycle. In this way, the magnetic fluid 32 continuously carries the heat energy at the heat source 1 to the heat dissipation end 2 and dissipates it. The circulation of the magnetic fluid 32 is driven by the magnetic field force generated by the electromagnetic coil 4, and no additional mechanical device is required; and the circulation of the magnetic fluid 32 has the ability to resist gravity and can operate stably under various environmental conditions.

[0033] In order to ensure the long-term stable normal circulation of the magnetic fluid 32, the annular tube 31 needs to use high temperature resistant and corrosion resistant materials. In order to reduce the interference of ferromagnetic materials on the magnetic fluid 32 and improve the heat dissipation effect of the annular tube 31, the annular tube 31 is made of aluminum alloy material, copper alloy material, or stainless steel material. In this embodiment, the annular tube 31 is a copper tube.

[0034] Furthermore, multiple groups of electromagnetic coils 4 are respectively provided on the heat conduction section 311 and the return section 312, and the structures and parameters of the electromagnetic coils 4 at different positions are designed according to the thermal conduction efficiency of the heat conduction unit at the heat source end 1 and the heat dissipation efficiency of the heat dissipation device at the heat dissipation end 2, and the corresponding magnetic field strength is generated to drive the magnetic fluid 32 to flow inside the annular flow path.

[0035] Furthermore, it also includes a control system for controlling the current of the electromagnetic coil 4, and the control system is electrically connected to each group of the pulse power generators to adjust the flow speed and heat dissipation efficiency of the magnetic fluid 32 to achieve intelligent control.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A magnetic fluid heat dissipation device driven by an electromagnetic field, characterized in that: The heat dissipation device (A) comprises a heat source end (1), a heat dissipation end (2), and an annular heat pipe group (3) connecting the heat source end (1) and the heat dissipation end (2), wherein the annular heat pipe group (3) comprises an annular pipe (31) having an annular flow path and a magnetic fluid (32) sealed in the annular flow path; and further comprises an electromagnetic coil (4) arranged in the heat dissipation device (A), wherein the electromagnetic coil (4) is electrically connected to an external pulse power generator.

2. The electromagnetic field driven magnetic fluid heat dissipation device according to claim 1, characterized in that: The electromagnetic coil (4) is arranged at the heat dissipation end (2), and the electromagnetic coil (4) is electrically connected to an external pulse power generator.

3. The electromagnetic field driven magnetic fluid heat dissipation device according to claim 1, characterized in that: The electromagnetic coil (4) is arranged at the heat source end (1), and the electromagnetic coil (4) is electrically connected to an external pulse power generator.

4. The electromagnetic field driven magnetic fluid heat dissipation device according to claim 1, characterized in that: The magnetic particles of the magnetic fluid (32) are magnetic powder.

5. The electromagnetic field driven magnetic fluid heat dissipation device according to claim 1, characterized in that: The annular tube (31) comprises a heat conduction section (311) and a reflux section (312); the magnetic fluid (32) flows from the heat source end (1) to the heat dissipation end (2) through the heat conduction section (311), and then flows from the heat dissipation end (2) to the heat source end (1) through the reflux section (312).

6. The electromagnetic field driven magnetic fluid heat dissipation device according to claim 5, characterized in that: A plurality of groups of electromagnetic coils (4) are respectively arranged on the heat conduction section (311) and the return section (312); the electromagnetic coils (4) at different positions have different structures and parameters, and generate different magnetic field intensities.

7. The electromagnetic field driven magnetic fluid heat dissipation device according to claim 1, characterized in that: It also includes a control system for controlling the current of the electromagnetic coil (4), and the control system is electrically connected to each group of the pulse power generators.

8. The electromagnetic field driven magnetic fluid heat dissipation device according to claim 1, characterized in that: The annular tube (31) is made of an aluminum alloy material, a copper alloy material, or a stainless steel material.

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