TWI773456B - Dissipation assembly with power generation function and electronic device - Google Patents

Abstract

A dissipation assembly with power generation function includes a casing, a fan, a plurality of magnet components and a sensing coil. The fan is rotatably disposed in the casing. The magnets are disposed on the fan. The sensing coil is disposed in the casing. The sensing coil is located outside the fan in a radial direction of the fan. The sensing coil and the magnets generate an electromotive force for power outputting.

Description

Heat-dissipating components and electronic devices with power generation function

The present invention relates to a heat-dissipating component and an electronic device, in particular to a heat-dissipating component with a power generation function and an electronic device including the same.

Generally, a computer host is equipped with a cooling fan for a heat source such as a central processing unit. After the cooling fan is powered on, the electrical energy is converted into kinetic energy, and the heat source is dissipated by blowing the wind.

However, the electric energy obtained by the cooling fan can often only be used for heat dissipation, and the converted kinetic energy cannot be used again, which is not conducive to energy regeneration.

The present invention is to provide a heat-dissipating component and an electronic device with a power-generating function, so as to use the kinetic energy of the heat-dissipating fan to generate power for reuse.

The heat dissipation component with power generation function disclosed in an embodiment of the present invention includes a casing, a fan, a plurality of magnetic components, and an induction coil. The fan is rotatably arranged in the casing. The magnetic element is arranged on the fan. The induction coil is arranged on the casing. The induction coil is located on the outer periphery of the fan and in the radial direction of the fan. When the fan rotates relative to the casing, the induction coil and the magnetic element generate an induced electromotive force for outputting electric power.

An electronic device disclosed in another embodiment of the present invention includes a body, a heat dissipation component and at least one electronic component. The heat dissipation component has the function of generating electricity. The heat dissipation assembly includes a casing, a fan, a plurality of magnetic parts and an induction coil. The casing is arranged in the body. The fan is rotatably arranged in the casing. The magnetic element is arranged on the fan. The induction coil is arranged on the casing. The induction coil is located on the outer periphery of the fan and in the radial direction of the fan. When the fan rotates relative to the casing, the induction coil and the magnetic element generate an induced electromotive force for outputting electric power. The electronic component is electrically connected to the induction coil to receive the output power of the induction coil.

According to the heat dissipation assembly and the electronic device of the above-mentioned embodiments, when the fan rotates relative to the casing to provide the heat dissipation function, the magnetic element can provide a changing magnetic field to the induction coil in the radial direction of the fan along with the rotation of the fan, so that The electromagnetic induction between the magnetic parts and the induction coil is used to generate an induced electromotive force on the induction coil, and a part of the kinetic energy of the fan is converted into electric energy to achieve the function of generating electricity and realize the purpose of energy regeneration. In addition, by arranging the induction coil to be located on the outer circumference of the fan and in the radial direction of the fan, when the fan rotates relative to the casing, a magnetic field with a large variation of the induction coil can be provided, so as to generate a large induced electromotive force and output it. more power.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principle of the present invention, and provide further explanation of the scope of the patent application of the present invention.

An embodiment of the present invention will be described below. Please refer to FIGS. 1 to 2 , wherein FIG. 1 is a block diagram of an electronic device according to an embodiment of the present invention, and FIG. 2 is a heat dissipation device of FIG. 1 . Schematic top view of the component.

This embodiment provides an electronic device 1 . The electronic device 1 is, for example, an electronic product such as a desktop computer, a notebook computer, and a tablet computer. The electronic device 1 includes a body 10 , a heat dissipation component 20 and an electronic component 30 . The body 10 is, for example, a host of an electronic product. The heat dissipation assembly 20 includes a casing 100 , a fan 200 , a plurality of magnetic elements 300 and a plurality of induction coils 400 . The casing 100 is disposed in the body 10 . The fan 200 includes a hub 210 and a plurality of fan blades 220 . The hub 210 is rotatably disposed in the housing 100 . The fan blade 220 is provided on the outer peripheral surface of the hub 210 . The heat dissipation component 20 can be close to a heat source H in the body 10 , and is blown by the fan 200 to provide the heat source H with an air-cooled heat dissipation effect.

The heat dissipation assembly 20 also has a power generation function. Specifically, the magnetic member 300 is, for example, a permanent magnet, and the magnetic member 300 has a magnetic pole direction DM. The magnetic members 300 are respectively fixed to the ends of the blades 220 of the fan 200 , and the magnetic pole direction DM of the magnetic members 300 is the same as the radial direction DR of the fan 200 . The induction coil 400 is disposed in the casing 100 , and the induction coil 400 evenly surrounds the outer circumference of the fan 200 and keeps a distance from the fan 200 in the radial direction DR of the fan 200 to avoid interference with the rotation of the fan 200 . When the fan 200 rotates relative to the casing 100 , the magnetic pole direction DM of the magnetic member 300 can pass through the induction coil 400 and provide a changing magnetic field of the induction coil 400 to generate an induced electromotive force on the induction coil 400 . The induction coil 400 is electrically connected to the electronic element 30 to output electric power to the electronic element 30 by using the induced electromotive force.

The electronic component 30 can be, for example, a capacitor, and stores the power output by the induction coil 400 . The stored power can be supplied to components in the body 10 that require little power, such as transmitters of signals such as infrared, bluetooth, WIFI or GPS. Alternatively, the stored power can be charged to the battery (not shown) of the body 10 after the voltage is increased, for example, through a boosting element (not shown). The electronic component 30 can also be, for example, a light-emitting element, which can be used as an operation indicator of the electronic device 1 , or can be used as a speed indicator of the fan 200 . When the speed of the fan 200 is faster, the power output by the induction coil 400 is stronger, which makes the light-emitting element brighter. The user can know the current usage efficiency from the brightness of the light-emitting element.

According to the electronic device 1 and the heat dissipating component 20 according to the above-mentioned embodiment, while the fan 200 rotates relative to the casing 100 to provide the heat dissipation function, the magnetic element 300 can provide a changing magnetic field of the induction coil 400 along with the rotation of the fan 200 , so as to Electromagnetic induction is used to generate an induced electromotive force on the induction coil 400, and a part of the kinetic energy of the fan 200 is converted into electrical energy, so as to achieve the function of generating electricity and realize the purpose of energy regeneration.

In this embodiment, the magnetic member 300 is fixed to the end of the fan blade 220 , and the magnetic pole direction DM of the magnetic member 300 is the same as the radial direction DR of the fan 200 . With such a configuration, when the fan 200 rotates relative to the casing 100 , the induction coil 400 can be provided with a magnetic field that varies greatly, so as to generate a larger induced electromotive force and output more power. However, the present invention is not limited thereto. In some embodiments, the magnetic element can also be fixed to the middle section of the fan blade or the section close to the rotation center; or, the magnetic pole direction of the magnetic element can also be the same as the tangential direction of the rotation of the fan, as long as the induction coil can provide enough changing magnetic field to generate enough induced electromotive force.

In the present embodiment, the number of the fan blades 220 , the magnetic elements 300 and the induction coils 400 is, for example, eight and all are uniformly arranged in a circle. Thereby, when the fan 200 rotates relative to the casing 100 , the induced electromotive force can be smoothly generated. However, the present invention is not limited thereto. In some embodiments, two magnetic elements may be respectively disposed on only two of the plurality of fan blades, and only correspond to one induction coil, and an induced electromotive force may also be generated.

Please refer to FIG. 3 , which is a partially enlarged perspective view of a fan blade of an electronic device according to another embodiment of the present invention. The following only describes the differences between another embodiment of the present invention and the foregoing embodiments, and the similarities will be omitted. In this embodiment and some embodiments of the present invention, the heat dissipation assembly 20 may further include a plurality of air guide covers 500 . The air guide cover 500 has a streamlined appearance on the outside and an accommodating space S on the inside. The air guide hoods 500 are respectively disposed on the fan blades 220 and respectively accommodate the magnetic elements 300 therein. In this way, the fan blade 220 can utilize the streamline appearance of the air guide cover 500 to generate a smooth air flow, so as to avoid the reduction of the heat dissipation effect caused by the arrangement of the magnetic member 300 . It should be noted that, the number of the wind guide cover 500 in this embodiment is the same as that of the magnetic elements 300 , for example, eight, but the present invention is not limited to this. In some embodiments, the number of air guides can also be adjusted according to the number of magnetic elements.

According to the heat dissipation assembly and the electronic device of the above-mentioned embodiments, when the fan rotates relative to the casing to provide the heat dissipation function, the magnetic element can provide a changing magnetic field to the induction coil in the radial direction of the fan along with the rotation of the fan, so that The electromagnetic induction between the magnetic parts and the induction coil is used to generate an induced electromotive force on the induction coil, and a part of the kinetic energy of the fan is converted into electric energy to achieve the function of generating electricity and realize the purpose of energy regeneration. In addition, by arranging the induction coil to be located on the outer circumference of the fan and in the radial direction of the fan, when the fan rotates relative to the casing, a magnetic field with a large variation of the induction coil can be provided, so as to generate a large induced electromotive force and output it. more power.

Although the present invention is disclosed above by the aforementioned embodiments, it is not intended to limit the present invention. Anyone who is familiar with similar techniques can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of patent protection of the invention shall be determined by the scope of the patent application attached to this specification.

1: Electronic device 10: Body 20: Cooling components 100: Shell 200: Fan 210: Wheels 220: fan blade 300: Magnetics 400: induction coil 500: Air deflector 30: Electronic Components DR: radial direction DM: Magnetic Pole Direction H: heat source S: accommodating space

FIG. 1 is a schematic block diagram of an electronic device according to an embodiment of the present invention. FIG. 2 is a schematic top view of the heat dissipation assembly of FIG. 1 . 3 is a partial enlarged perspective view of a fan blade of an electronic device according to another embodiment of the present invention.

20: Cooling components

100: Shell

200: Fan

210: Wheels

220: fan blade

300: Magnetics

400: induction coil

DR: radial direction

DM: Magnetic Pole Direction

Claims (8)

A heat dissipation component with power generation function, comprising: a casing; a fan, rotatably arranged in the casing; a plurality of magnetic parts, arranged on the fan; a plurality of air guide covers, wherein the air guide covers are respectively The outer side has a streamlined appearance and the inner side has an accommodating space, and the air guide covers are respectively arranged on the plurality of blades of the fan and the magnetic parts are respectively accommodated therein; and an induction coil is provided In the casing, the induction coil is located on the outer circumference of the fan and in a radial direction of the fan, and the induction coil and the magnetic components generate an induced electromotive force for outputting power when the fan rotates relative to the casing . The heat dissipation component with power generation function according to claim 1, wherein the fan comprises a hub and the fan blades, the hub is rotatably disposed in the casing, the fan blades are disposed on the outer peripheral surface of the hub, the fan blades The magnetic elements are respectively fixed on the ends of the fan blades, and the magnetic pole directions of the magnetic elements are the same as the radial direction. The heat dissipation component with power generation function according to claim 2, wherein the number of the induction coils is multiple, the number of the induction coils, the magnetic components and the fan blades are all the same, and the induction coils are evenly distributed Surrounding the outer circumference of the fan and keeping a distance from the fan. The heat-dissipating component with power generation function according to claim 1, wherein the magnetic components are permanent magnets. An electronic device comprising: a body; a heat-dissipating component with power generation function, the heat-dissipating component includes: a casing, disposed in the casing; a fan, rotatably disposed in the casing; a plurality of magnetic parts, disposed on the fan; an air guide hood, wherein the air guide hoods each have a streamlined appearance on the outside and an accommodating space on the inside, and the air guide hoods are respectively disposed on the plurality of blades of the fan and the magnetic and an induction coil is arranged in the casing, the induction coil is located on the outer periphery of the fan and in a radial direction of the fan, and the induction coil and the magnetic parts are relative to the fan When the casing rotates, an induced electromotive force is generated for outputting electric power; and at least one electronic element is electrically connected to the induction coil to receive the output electric power of the induction coil. The electronic device of claim 5, wherein the fan comprises a hub and the fan blades, the hub is rotatably disposed in the casing, the fan blades are disposed on the outer peripheral surface of the hub, and the magnetic elements are respectively It is fixed on the ends of the fan blades, and the magnetic pole directions of the magnetic elements are the same as the radial direction. The electronic device of claim 6, wherein the number of the induction coils is multiple, the number of the induction coils, the magnetic components and the fan blades are all the same, and the induction coils evenly surround the fan perimeter and keep a distance from the fan. The electronic device according to claim 5, wherein at least one electronic element is a capacitor or a light-emitting element.

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