TWI408879B - Fan module and heat dissipating system - Google Patents

Abstract

A fan module comprises a fan guard, a fan, a first magnetic element, a second magnetic element, and a base. The fan guard has a chamber, and the fan is disposed in the chamber. The first magnetic element, disposed on a body of the fan guard, has a tunnel; a part of the second magnetic element accommodates in the tunnel and is fixed in the base. Owing to electromagnetic effects, the first magnetic element and the second magnetic element will be separated by magnetic force to prevent vibration generated by the fan from being transferred to the base.

Description

Fan module and cooling system

The present invention relates to a fan module, and more particularly to a fan module that utilizes the principle of magnetic float to separate a fan from a base by magnetic force.

When the precision electronic equipment is in operation, additional heat sinks must be installed to force the high temperature generated by the operation of the equipment to maintain the performance of the equipment. At present, in the selection of the heat sink, the installation of the fan is the mainstream; however, the vibration generated when the fan is running often has a negative impact on the equipment. At present, in the technique of reducing the vibration transmission, the buffer element is applied to the connecting member of the fan and the electronic device mainly toward the shock absorbing member, but this technique still cannot completely eliminate the transmission of the vibration.

The invention also has an invention for reducing the transmission of vibrations. Please refer to FIG. 1 and FIG. 2, for example, a heat-dissipating fan suspension structure is disclosed in the Patent Application No. 094212183 of the Republic of China, in which a suspension element 1 is disposed in a coupling hole 2, The fixing element 3 is used to fix the suspension element 1 in the coupling hole 2 to reduce the vibration generated from a fan body 4.

However, the vibration energy absorbed by the above-described suspension element 1 is limited. Therefore, the present invention proposes a fan module that can effectively isolate the transmission of vibration.

In the prior art, the shock energy absorbed by the shock absorber is limited, and the vibration cannot be completely isolated, so that the operation of the precision electronic component is less affected by the vibration. The present invention proposes a magnetic floating principle to make the vibration source and the precision. Electronic components are separated to provide better stability.

An object of the present invention is to provide a fan module comprising: a frame, a fan, at least one first magnetic member, at least one second magnetic member, and a base. The fan frame has a receiving space, and the fan is disposed in the accommodating space of the fan frame. The first magnetic member is disposed on the frame body and has a hole, wherein the longitudinal direction of the hole is parallel to the axis of the fan; the second magnetic member has two ends, and one end is received in the hole of the first magnetic member. The base and the other end of the second magnetic member are fixed, wherein the fan frame is disposed on the base through the first magnetic member and the second magnetic member. When the first magnetic member or the second magnetic member is energized, a mutual repulsive magnetic force is generated due to the electromagnetic effect, and the first magnetic member and the second magnetic member are separated to block the vibration generated when the fan is operated from being transmitted to the susceptor.

Another object of the present invention is to provide a fan module comprising: a frame, a fan, at least one first magnetic member, at least one second magnetic member, and a base. The fan is disposed in one of the accommodating spaces defined by the fan frame. The first magnetic member is disposed outside the fan frame and has a hole. The longitudinal direction of the hole is parallel to the axis of the fan, and one end of the second magnetic member is received in the hole of the first magnetic member. The pedestal is coupled to the other end of the second magnetic member, wherein the sash frame is disposed on the pedestal through the first magnetic member and the second magnetic member. When the first magnetic member or the second magnetic member is energized, a magnetic force is generated due to the electromagnetic effect to separate the first magnetic member from the second magnetic member, thereby effectively preventing the vibration generated when the fan is operated from being transmitted to the susceptor.

The invention also provides a heat dissipation system suitable for an electronic component, comprising: a frame, a fan, at least one first magnetic member, at least one second magnetic member, and a heat dissipating component. The fan is disposed in one of the accommodation spaces defined by the fan frame. The first magnetic member is disposed on the fan frame body and has a hole. The longitudinal direction of the hole is parallel to the axis of the fan, and the second magnetic member has two ends, and one end is received in the hole. The heat dissipating component is disposed on the electronic component and coupled to the other end of the second magnetic component, wherein the fan frame is disposed on the heat dissipating component through the first magnetic component and the second magnetic component. When the first magnetic member or the second magnetic member is energized, a magnetic force is generated due to the electromagnetic effect to separate the first magnetic member from the second magnetic member, thereby effectively preventing the vibration generated when the fan is operated from being transmitted to the heat dissipating member.

Therefore, the present invention provides a fan module and a heat dissipation system, which utilizes the principle of magnetic float to effectively block the transmission of vibration and increase the stability of the operation of the electronic component. The above and other objects, features and advantages of the present invention will become more <RTIgt;

In order to improve the conventional technology, the shortcomings of the vibration cannot be completely prevented. The present invention proposes a magnetic module that utilizes the principle of magnetic levitation to effectively block the vibration transmission. The detailed implementation details are as follows: Please refer to the third and 4A, FIG. 3 is a schematic view of the fan module 10 according to the first embodiment of the present invention, in which parts of the fan module are displayed, and only part of the structure of the base 11 is shown in FIG. 3, which can be viewed from FIG. 4A. It is understood that the pedestal 11 is provided on the front and the rear of the fan frame 12, which is indicated here. FIG. 4A is a detailed sectional view of the fan module 10 of the first embodiment of the present invention when the first or second magnetic members 14 and 15 are not energized. . In this embodiment, the fan module 10 is configured to generate forced air convection, and includes a base 11, a frame 12, a fan 13, four first magnetic members 14, and four second magnetic members 15.

The pedestal 11 is composed of two sets of substantially L-shaped structures, and has four fixing holes 111 and a first venting hole 112. The center of the fan frame 12 defines an accommodating space 124, and a vent is formed on each of the opposite sides of the accommodating space 124. The position of the fan frame 12 is defined by the operation of the fan module 10. The four corners of the fan frame 12 are respectively provided with a perforation. 121, the through hole 121 penetrates the frame of the fan frame 12. The fan frame 12 is not directly coupled to the base 11 and has a gap with the base 11. The fan 13 is disposed in the accommodating space 124 of the fan frame 12, and the first venting hole 112 is disposed relative to the vent.

In this embodiment, the first magnetic member 14 is a tubular permanent magnet, and is embedded or inserted in the through hole 121 in a locking or adhesive manner; the first magnetic member 14 is axially long and the axis of the through hole 121 The length is equal and has a tunnel 141, and one of the openings of the tunnel 141 is located on one side of the fan frame 12 facing the base 11. The second magnetic member 15 is substantially a columnar electromagnet having a first end 151 and a second end 152 having a radial length smaller than the radial length of the tunnel 141 and an axial length greater than the axial direction of the tunnel 141. length. The second magnetic member 151 is partially received in the hole 141, and the first end 151 and the second end 152 are disposed outside the hole 141 and are respectively fixed to the fixing hole 111 and fixed by the fixing member 153. The fixing member 153 can be It is a nut. Therefore, the susceptor 11 and the second magnetic member 15 are fixed, and the sash frame 12 is provided on the susceptor 11 by the second magnetic member 15 together with the first magnetic member 14 embedded therein.

The principle of the magnetic floating operation of the present embodiment is as follows: Please refer to FIG. 4A and FIG. 4B at the same time, and FIG. 4A is a detailed cross-section of the first magnetic member 14 or the second magnetic member 15 of the fan module 10 of the present embodiment when the first magnetic member 14 or the second magnetic member 15 is not energized. Fig. 4B is a cross-sectional view showing a detail of the first magnetic member 14 or the second magnetic member 15 of the fan module 10 of the present embodiment when it is energized.

When the first magnetic member 14 or the second magnetic member 15 of the fan module 10 is not energized, the second magnetic member 15 is in surface contact with the inner wall surface of the tunnel 141 of the first magnetic member 14. Since the first magnetic member 14 is embedded in the fan frame 12 and the second magnetic member 25 is fixed to the base 21, the fan frame 12 and the base 11 are coupled to each other.

After the first magnetic member 14 or the second magnetic member 15 of the fan module 10 is energized, the second magnetic member 15 generates a magnetic force due to the electromagnetic effect, so that the second magnetic member 15 is separated from the inner wall surface of the tunnel 141 without substantial contact; Further, under the action of the magnetic force, the axis of the second magnetic member 15 is substantially parallel to the axis of the tunnel 141. Since the fan frame 12 and the susceptor 11 are not connected to each other at this time, the vibration generated by the fan 13 during operation is not transmitted to the susceptor 11, thereby achieving the effect of preventing the vibration by the magnetic levitation effect of the embodiment.

In this embodiment, the first magnetic member 14 may also be an electromagnet. In contrast, the second magnetic member 15 may also be a permanent magnet. When the first magnetic member 14 is energized, the magnetic field generated by the electromagnetic effect and the second The magnetic fields of the magnetic members 15 are mutually repelled, thereby achieving the effect of the magnetic floating effect in the embodiment to effectively block the vibration of the fan 13 from being transmitted to the susceptor 11 due to the operation.

Referring to FIG. 4C, the susceptor 11 may also be provided with a plurality of third magnetic members 113 opposite to the first end 151 or the second end 152, and the first end 151 and the third magnetic member 113 may be coupled by magnetic force, and connected. The second end 152 and the third magnetic member 113. In another embodiment, the partial structure of the base 11 is constructed of a magnetic substance such that the first end 151 or the second end 252 can be coupled thereto by magnetic force (not shown).

Please refer to FIG. 5 and FIG. 6A simultaneously. FIG. 5 is a schematic diagram of the fan module 20 according to the second embodiment of the present invention. In order to display the components of the fan module, FIG. 5 only shows a part of the structure of the base 21. It can be understood from FIG. 6A that the fan frame 22 is provided with the base 21 in front and rear. In addition, in order to mark the groove 228, a first magnetic member 24 is separately drawn and drawn, which is specified here; FIG. 6A is the first invention of the present invention. A cross-sectional view of a detail of the first magnetic member 24 or the second magnetic member 25 of the fan module 20 of the second embodiment when the second magnetic member 24 is not energized. In this embodiment, the fan module 20 is configured to generate forced air convection, and includes a base 21, a frame 22, a fan 23, four first magnetic members 24, and four second magnetic members 25.

The base 21 is composed of two sets of substantially L-shaped structures, and has four fixing holes 211 and a first ventilation hole 212. The central portion of the fan frame 22 is an accommodating space 223, and a vent is defined at each end of the accommodating space 223, and the position thereof is defined by the operation of the fan module 20; the fan frame 22 further has a first side 224, A second side 225, a third side 226, and a fourth side 227 are respectively connected to the other two sides, and a groove 228 is formed at each joint. The fan frame 22 and the base 21 have a gap therebetween. The fan 23 is disposed in the accommodating space 223 of the fan frame 22, and the first venting hole 212 is disposed relative to the vent. Therefore, one end of the second magnetic member 25 is fixed to the base 21, and the first magnetic member 24 disposed on the fan frame 22 is disposed on the base 21 by the second magnetic member 25.

In this embodiment, the first magnetic member 24 is substantially a tubular permanent magnet and is fixed to the recess 228 by locking or bonding; the first magnetic member 24 is axially longer than the recess 228. The axial lengths are equal and have a channel 241 which is a perforation. The second magnetic member 25 is substantially a columnar electromagnet having a first end 251 and a second end 252 having a radial length smaller than the radial length of the bore 241 and an axial length greater than the axial direction of the bore 241. length. The second magnetic member 25 is received in the hole 241, and the first end 251 and the second end 252 are disposed outside the hole 241, and are respectively disposed in the fixing hole 211, and are fixed by the fixing member 253. The fixing member 253 can be a Nuts.

The principle of the magnetic levitation operation of the present embodiment is as follows: Please refer to FIG. 6A and FIG. 6B at the same time. FIG. 6A is a detailed sectional view of the first magnetic member 24 or the second magnetic member 25 of the fan module 20 of the present embodiment when energized. Fig. 6B is a cross-sectional view showing a detail of the first magnetic member 24 or the second magnetic member 25 of the fan module 20 of the present embodiment when it is energized.

When the first magnetic member 24 or the second magnetic member 25 of the fan module 20 is not energized, the second magnetic member 25 is in surface contact with the inner wall surface of the hole 241 of the first magnetic member 24. Since the first magnetic member 24 is disposed on the body of the fan frame 22, and both ends of the second magnetic member 25 are fixed to the base 21, the fan frame 22 and the base 21 are coupled to each other at this time.

When the first magnetic member 24 or the second magnetic member 25 of the fan module 20 is energized, the second magnetic member 25 generates a repulsive magnetic force due to the electromagnetic effect, so that the second magnetic member 25 is separated from the inner wall surface of the tunnel 241, and is no longer separated. In addition, under the action of the magnetic force, the axis of the second magnetic member 25 is substantially parallel to the axis of the tunnel 241. Since the fan frame 22 and the base 21 are not connected to each other at this time, the vibration generated by the fan 23 during operation is not transmitted to the base 21, thereby achieving the effect of preventing the vibration by the magnetic floating action in the embodiment.

On the other hand, in this embodiment, the first magnetic member 24 or the second magnetic member 25 can be energized to attract each other, and by the change of the magnetic properties of the magnet, the vibration of the component during the transportation or handling can be prevented from being worn.

In this embodiment, the first magnetic member 24 may also be an electromagnet. In contrast, the second magnetic member 25 is a permanent magnet. When the first magnetic member 24 is energized, the magnetic field generated by the electromagnetic effect and the second magnetic member 25 When the magnetic fields repel each other, the magnetic floating effect of the embodiment is effectively used to effectively prevent the vibration generated by the fan 23 from being transmitted to the susceptor 21 due to the vibration generated by the operation.

Referring to FIG. 6C, the base 21 may also be provided with a plurality of third magnetic members 213 with respect to the first end 251 or the second end 252, and connected to each other by magnetic force. In another modification, the susceptor 21 itself is a magnetic substance that can be directly magnetically coupled to the first end 251 or the second end 252 (not shown).

As can be seen from the above description, the fan module of the present invention separates the fan from the base by utilizing the maglev effect caused by the magnetic difference between the electromagnet and the permanent magnet before and after energization, thereby effectively preventing the transmission of the vibration, and is also disposed on the base. The electronic components inside provide a higher degree of stability. The relationship between the components of the fan module 10 of the first embodiment of the present invention and the fan module 20 of the second embodiment and the principle of operation thereof have been fully explained and explained in the above. It should be noted that the relative position, quantity, shape and other limitations of the above-mentioned components are not limited to the contents of the illustrations and the description of the present invention. When examining the invention of the present invention, the overall content of the present invention should be considered. .

Please refer to FIG. 7 and FIG. 8 at the same time. FIG. 7 is a schematic diagram of a heat dissipation system 30 according to a third embodiment of the present invention, and FIG. 8 is a plan view of the heat dissipation system 30 of the third embodiment of the present invention. In this embodiment, the heat dissipation system 30 is applied to an electronic component, including: a heat dissipation component 31, a fan frame 32, a fan 33, four first magnetic members 34, and four second magnetic members 35.

The heat dissipating component 31 is a metal heat sink with good thermal conductivity. An accommodating space 324 is defined in the substantial center of the sash frame 32, and a vent is defined on opposite sides of the accommodating space 324. One vent is defined adjacent to one end of the heat dissipating component 31. The fan frame 32 is not directly coupled to the heat dissipating member 31 and has a gap therebetween. The fan 33 is received in the accommodating space 324 of the fan frame 32. The heat dissipating component 31 is disposed on the vent side and coupled to the electronic component 36. In addition, a dark hole 321 is respectively disposed at four corners of the fan frame 32. Therefore, the heat dissipating element 31 is coupled to the second magnetic member 35, and the fan frame 32 is disposed on the heat dissipating element 31 through the first magnetic member 34 and the second magnetic member 35.

In this embodiment, the first magnetic member 34 is substantially a tubular electromagnet and is embedded in the dark hole 321; the first magnetic member 34 has a hole 341, and one opening of the hole 341 is located at the fan frame 32 to face heat dissipation. One side of the element 31. The second magnetic member 35 is substantially a columnar permanent magnet having a first end 351 and a second end 352 having a radial length that is less than the radial length of the tunnel 341. The first end 351 passes through the outside of the tunnel 341 and is respectively fixed to the heat dissipating member 31, for example, magnetically coupled.

The principle of operation of the magnetic levitation in this embodiment is as follows: when the first magnetic member 34 or the second magnetic member 35 of the heat dissipation system 30 is energized, the first magnetic member 34 generates a repulsive magnetic force due to the electromagnetic effect, and the second magnetic member 35 is The inner wall surface of the tunnel 341 is separated and no longer in contact; in addition, under the action of the magnetic force, the axis of the second magnetic member 35 is substantially parallel to the axis of the tunnel 341. Since the fan frame 32 and the electronic component 36 have no substantial connection relationship at this time, the vibration generated by the fan 33 during operation is not transmitted to the electronic component 36, thereby achieving the effect of the embodiment.

On the one hand, the first magnetic member 34 or the second magnetic member 35 can be energized to attract each other, and the magnetic deformation of the magnet can avoid the wear of the components during the transportation or handling.

As can be seen from the above description, the heat dissipation system of the present invention generates a magnetic levitation effect by utilizing the magnetic difference between the electromagnet and the permanent magnet before and after energization, so that the fan and the electronic component are separated from each other during operation, thereby effectively preventing transmission of vibration as an electronic component. Provides greater stability. The relationship between the components of the heat dissipation system 30 of the third embodiment of the present invention and the principle of action have been described and explained in detail above, but it should be noted that the relative position, number, shape and the like of the components described above are limited. It is not limited to the contents of the illustrations and the description of the present invention. When examining the invention of the present invention, the overall content of the present invention should be considered.

Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make any changes without departing from the spirit and scope of the invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims.

Conventional technology

1. . . Shock absorber

2. . . Bonding hole

3. . . Fixed component

4. . . Fan body

Example of the case

11, 21. . . Pedestal

111, 211. . . Fixed hole

112, 212. . . First vent

113, 213. . . Third magnetic member

12, 22, 32. . . Fan frame

121. . . perforation

228. . . Groove

321. . . Dark hole

124, 223, 324. . . Housing space

13, 23, 33. . . fan

14, 24, 34. . . First magnetic member

141, 241, 341. . . Tunnel

15, 25, 35. . . Second magnetic member

151, 251, 351. . . First end

152, 252, 352. . . Second end

153, 253. . . Fastener

31. . . Heat sink

36. . . Electronic component

Figure 1 shows a schematic diagram of a prior art technique.

Fig. 2 is a cross-sectional enlarged view showing a conventional heat dissipation fan suspension structure of the prior art.

Fig. 3 is a view showing a first embodiment of the present invention.

Fig. 4A is a cross-sectional view showing a detail of the first or second magnetic member of the first embodiment of the present invention when the first or second magnetic member is not energized.

Fig. 4B is a cross-sectional view showing a detail of the first or second magnetic member of the first embodiment of the present invention after being energized.

Fig. 4C is a cross-sectional view showing a detail of the first embodiment of the present invention.

Fig. 5 is a view showing a second embodiment of the present invention.

Fig. 6A is a cross-sectional view showing a detail of the first or second magnetic member of the second embodiment of the present invention when the first or second magnetic member is not energized.

Fig. 6B is a cross-sectional view showing a detail of the first or second magnetic member of the second embodiment of the present invention after being energized.

Fig. 6C is a cross-sectional view showing a detail of a second embodiment of the present invention.

Fig. 7 is a view showing a third embodiment of the present invention.

Fig. 8 is a plan view showing the first or second magnetic member of the third embodiment of the present invention after being energized.

11. . . Pedestal

111. . . Fixed hole

112. . . First vent

12. . . Fan frame

124. . . Housing space

13. . . fan

14. . . First magnetic member

15. . . Second magnetic member

151. . . First end

152. . . Second end

153. . . Fastener

Claims (10)

A fan module includes: a frame having an accommodating space; a fan disposed in the accommodating space of the framing; a first magnetic member having a hole and disposed on the frame The longitudinal direction of the tunnel is parallel to the axis of the fan; a second magnetic member is partially received in the bore of the first magnetic member; and a base for fixing one end of the second magnetic member; When the first magnetic member or the second magnetic member is energized to generate a mutual repulsive magnetic force, the first magnetic member is separated from the second magnetic member to block the vibration generated when the fan is operated from being transmitted to the base. The fan module of claim 1, wherein at least one of the first magnetic member or the second magnetic member is an electromagnet. The fan module of claim 2, wherein the second magnetic member is disposed in the tunnel of the first magnetic member. The fan module of claim 1, wherein the first magnetic member is embedded in the frame of the fan frame, and one of the openings of the hole is located on a side of the frame facing the base. The fan module of claim 1, wherein the first magnetic member is disposed outside the fan frame, and one of the openings of the hole is located on a side of the frame facing the base. The fan module of claim 1, wherein the base is provided with at least one fixing hole, and the end of the second magnetic member is disposed at the fixing hole. The fan module according to claim 1, wherein the base portion structure is made of a magnetic substance, and the second magnetic member can be coupled thereto by a magnetic force. The fan module of claim 1, wherein the base further comprises a plurality of third magnetic members disposed opposite the end of the second magnetic member and coupled to each other by magnetic force. A heat dissipation system is applicable to an electronic component, comprising: a frame having an accommodating space; a fan disposed in the accommodating space of the framing; a first magnetic member having a hole and disposed on The fan frame, the longitudinal direction of the hole is parallel to the axis of the fan; a second magnetic member is partially received in the hole of the first magnetic member; and a heat dissipating component is disposed on the electronic component for Fixing one end of the second magnetic member; wherein, when the first magnetic member or the second magnetic member is energized to generate a mutual repulsive magnetic force, the first magnetic member is separated from the second magnetic member to block the operation of the fan The vibration is transmitted to the electronic component. The heat dissipation system of claim 9, wherein the first magnetic member is embedded in the frame of the fan frame, and one of the openings of the hole is located on a side of the fan frame facing the heat dissipating component.