TWI687601B - Anti-shock fan - Google Patents

Abstract

An anti-vibration fan includes a fan frame defining an installation space, a fan wheel pivotally disposed on the fan frame and located in the installation space, and a fan wheel for driving the fan wheel to rotate relative to the fan frame A driving mechanism, a shock-absorbing bearing member arranged on the fan frame and made of flexible shock-absorbing materials, and a protective net detachably arranged in the shock-absorbing bearing member. The vibration generated by the fan wheel will be absorbed by the shock-absorbing bearing connected to the fan frame to prevent the vibration from being transmitted to the protection net and the installed environment, so as to reduce noise and component loss and achieve the effect of suppressing vibration.

Description

Anti-shock fan

The invention relates to a fan, in particular to an anti-vibration fan.

Referring to FIG. 1, a cooling fan 1 generally used for car seats or electronic components includes a fan frame 11, a fan wheel 12 rotatably disposed in the fan frame 11, and a fan frame 11 disposed on the fan frame 11 to block The protective net 13 in front of the fan wheel 12. The fan wheel 12 can be controlled to rotate relative to the fan frame 11. At this time, the fan blade 121 on the fan wheel 12 will push the air to generate airflow, and these airflows will be transported outside after passing through the protective net 13 to produce a heat dissipation effect. . However, when the fan wheel 12 is in operation, vibration may occur due to the eccentricity of the rotating shaft, the gap between the machine parts, or other reasons. These vibrations will be transmitted to the connected fan frame 11, due to the protection net 13 and the fan frame 11. Because of the combined structure, there is inevitably a gap between the two, which causes the fan frame 11 to hit the protective net 13 due to vibration, causing wear and looseness of the two and generating a lot of noise. In addition, in some configurations, the protective net 13 is used to be fixed on other mounting surfaces, so that the vibration of the fan wheel 12 will be transmitted to the mounting surface and outward through the fan frame 11 and the protective net 13 In the nearby structure, the influence level of noise is enlarged and the problem becomes more serious.

Therefore, the object of the present invention is to provide an anti-vibration fan that can reduce vibration.

Therefore, the anti-vibration fan of the present invention includes a fan frame, a fan wheel, a driving mechanism disposed between the fan frame and the fan wheel and used to drive the fan wheel to rotate relative to the fan frame, and a shock-absorbing bearing member, And a protection net. The fan frame includes an outer frame wall surrounding and defining an installation space, and a mounting seat located in the installation space and connected to the inner wall surface of the outer frame wall. The fan wheel can be pivotally arranged on the mounting seat relative to the fan frame and located in the installation space. The driving mechanism is disposed between the fan frame and the fan wheel, and is used to drive the fan wheel to rotate relative to the fan frame. The shock-absorbing bearing is fixed on the outer frame wall of the fan frame and defines a clamping space communicating with the installation space. The shock-absorbing bearing is made of flexible shock-absorbing material. The protection net is detachably installed in the clamping space of the shock-absorbing bearing part.

The effect of the present invention is that the vibration of the fan wheel and the fan frame will be absorbed by the shock-absorbing bearing made of flexible shock-absorbing material, to prevent the vibration from being transmitted to the protection net, and to reduce noise and component loss, To achieve the effect of earthquake resistance.

2: Anti-vibration fan

3: fan frame

31: outer frame wall

310: Setting space

32: Mount

321: seat body

322: Shaft tube

331: Air inlet

332: Air outlet

4: fan wheel

41: Shell

42: Fan blade

5: Drive mechanism

51: inner bearing

52: hinge

53: coil

54: magnet ring

6: shock absorber

60: Card space

61: Setup Department

62: Extension

63: Outer wall

64: outer block

65: Card Department

66: Tenon

67: Ring groove

7: Protection net

71: outer ring body

711: Embedded groove

72: Connection

73: Inner ring body

730: opening

74: Mesh body

75: card slot

Other features and functions of the present invention will be clearly presented in the embodiments with reference to the drawings, in which: Fig. 1 is a side cross-sectional view illustrating a conventional cooling fan; Fig. 2 is an exploded perspective view illustrating one embodiment of the anti-vibration fan of the present invention; Fig. 3 is a side cross-sectional view further illustrating the combination of Fig. 2 4; and FIG. 4 is a side cross-sectional view illustrating another embodiment of this embodiment.

2 and 3, an embodiment of the anti-vibration fan 2 of the present invention includes a fan frame 3, a fan wheel 4 pivotally disposed in the fan frame 3, a fan frame 3 and the fan A driving mechanism 5 between the wheels 4, a shock-absorbing bearing 6 fixed on the fan frame 3 and defining a clamping space 60, and a clamping mechanism that is detachably clamped to the shock-absorbing bearing 6 Protection net 7 in space 60. The fan frame 3 includes an outer frame wall 31 surrounding and defining an installation space 310, and a mounting seat 32 located in the installation space 310 and connected to the inner wall surface of the outer frame wall 31. The outer frame wall 31 has an air inlet 331 and an air outlet 332 that communicate with the installation space 310 and are opposite to each other. The mounting seat 32 is disposed adjacent to the air inlet 331 and has a seat body portion 321 connected to the outer frame wall 31, and a direction from the seat body portion 321 along the axial direction of the outer frame wall 31 toward the air outlet 332 The extended shaft tube portion 322.

The fan wheel 4 includes a housing 41 coaxially disposed with the shaft tube portion 322 and surrounding the shaft tube portion 322, and a plurality of fan blades 42 connected to the outer peripheral surface of the housing 41 and arranged in an annular interval with each other. The driving mechanism 5 is disposed between the shaft tube portion 322 and the housing 41, and includes an inner bearing 51 disposed in the shaft tube portion 322, a rotatably inserted in the inner bearing 51 and The rotating shaft 52 of the casing 41 is fixedly connected The outer circumferential surface of the shaft tube portion 322 and the coil 53 located between the shaft tube portion 322 and the housing 41 in the radial direction of the shaft tube portion 322 and a ring are provided on the inner peripheral surface of the housing 41, And a magnet ring 54 between the coil 53 and the housing 41. By energizing the coil 53 and attracting or repelling the magnet ring 54, the fan wheel 4 can be driven to rotate relative to the fan frame 3, and the airflow can flow from the air inlet 331 to the air outlet 332. In this embodiment, the driving mechanism 5 may be a dynamic hydraulic bearing (Hydro-Dynamic Bearing, HDB for short), but it is not limited thereto.

The shock-absorbing socket 6 is made of a flexible shock-absorbing material, preferably selected from rubber or silicon rubber, and is formed on the outer frame wall 31 of the fan frame 3 by a shot-shooting method, and is adjacent to the air outlet 332, but it can also be assembled and fixed on the outer frame wall 31 through structural clamping, adhesion or other methods. The shock-absorbing socket 6 includes a mounting portion 61 fixed on the outer frame wall 31, an extending portion 62 extending outward from the mounting portion 61 in the radial direction of the outer frame wall 31, and a extending portion The outer peripheral portion of the outer periphery of 62 extends in the axial direction of the outer frame wall 31, an outer stop portion 64 extending inward from the outer wall portion 63 in the radial direction of the outer frame wall 31, and an outer stop portion 64 The portion 64 protrudes toward the extending portion 62 and is embedded in the locking portion 65 of the protective net 7, and is located between the outer wall portion 63 and the locking portion 65, and is blocked by the extending portion 62 toward the outside The portion 64 protrudes the latch portion 66. The extending portion 62, the outer wall portion 63, and the outer blocking portion 64 cooperate with each other to define a ring groove 67 communicating with the clamping space 60.

The protection net 7 includes an outer ring body 71 located in the ring groove 67, a The outer ring body portion 71 extends inwardly in the radial direction of the connection portion 72, an inner ring body portion 73 connected to the inner side of the connection portion 72 and surrounding an opening 730, and a connection portion 73 connected to the inner ring body portion 73 The inner wall surface is located in the mesh body portion 74 in the opening 730. The outer ring body portion 71, the connecting portion 72, and the inner ring body portion 73 cooperate to define a locking groove 75 into which the locking portion 65 extends. The outer ring body portion 71 is recessed to form an insertion groove 711 into which the tenon portion 66 is inserted. When the protective net 7 is inserted into the shock-absorbing socket 6, the outer ring body 71 will be inserted into the ring groove 67 of the shock-absorbing socket 6, and the locking portion 65 of the shock-absorbing socket 6 And the tenon portion 66 is inserted into the clamping groove 75 and the insertion groove 711 of the protection net 7 respectively, so that the protection net 7 is disposed in the clamping space 60 of the shock-absorbing bearing 6.

In this embodiment, the fan frame 3 and the protective net 7 are connected through the shock-absorbing socket 6 with flexibility and shock absorption capability, so that the vibration of the fan frame 3 can be absorbed by the shock-absorbing socket 6 to avoid vibration Passed to the protection net 7, to achieve the effect of anti-vibration and noise reduction and avoid component wear. Referring to FIG. 4, in addition to being configured as described above, this embodiment may also be provided with the shock-absorbing bearing 6 and the protection net 7 adjacent to the air inlet 331 to meet different configuration requirements and increase versatility.

In summary, through the shock-absorbing bearing 6 made of shock-absorbing material, the vibration on the fan frame 3 can be absorbed, and the vibration can be prevented from being further transmitted to the protective net 7 to achieve the effect of suppressing vibration and reducing noise. Therefore, the purpose of cost invention can indeed be achieved.

However, the above are only examples of the present invention, and the scope of implementation of the present invention cannot be limited by this, all the patent applications and patent descriptions according to the present invention The simple equivalent changes and modifications made in the content of the book are still covered by the patent of the present invention.

2: Anti-vibration fan

3: fan frame

31: outer frame wall

310: Setting space

32: Mount

321: seat body

322: Shaft tube

331: Air inlet

332: Air outlet

4: fan wheel

41: Shell

42: Fan blade

5: Drive mechanism

51: inner bearing

52: hinge

53: coil

54: magnet ring

6: shock absorber

60: Card space

61: Setup Department

62: Extension

63: Outer wall

64: outer block

65: Card Department

66: Tenon

67: Ring groove

7: Protection net

71: outer ring body

711: Embedded groove

72: Connection

73: Inner ring body

730: opening

74: Mesh body

75: card slot

Claims (7)

An anti-vibration fan, comprising: a fan frame, including an outer frame wall surrounding and defining an installation space, and a mounting seat located in the installation space and connected to the inner wall surface of the outer frame wall; a fan wheel, which can be opposite to The fan frame is pivotally arranged on the mounting base and located in the installation space; a driving mechanism is provided between the fan frame and the fan wheel for driving the fan wheel to rotate relative to the fan frame; The shock-absorbing bearing is fixed on the outer frame wall of the fan frame and defines a clamping space communicating with the installation space. The shock-absorbing bearing is made of flexible shock-absorbing material. The shock receiving member includes a setting portion fixed on the outer frame wall of the fan frame, an extending portion extending outward from the setting portion in the radial direction of the outer frame wall, and an outer peripheral edge of the extending portion along the An outer wall portion extending in the axial direction of the outer frame wall, and an outer stop portion extending inward from the outer wall portion in the radial direction of the outer frame wall, the extension portion, the outer wall portion, and the outer stop portion are mutually opposed Cooperate to define a ring groove connecting to the clamping space; and a protective net, which is detachably installed in the clamping space of the shock-absorbing bearing and extends into the ring groove. The anti-shock fan according to claim 1, wherein the material of the shock-absorbing bearing member is selected from one of rubber and silicone rubber, and is formed on the fan frame by means of a shot bag. The anti-vibration fan according to claim 1, wherein the material of the shock absorber is selected from one of rubber and silicone, and is assembled on the fan frame. The anti-seismic fan according to claim 1, wherein the shock absorber receiving member further includes A locking portion that protrudes from the outer blocking portion toward the extending portion and is embedded on the protection net, the protection net includes an outer ring body part located in the ring groove, and a outer ring body part along the self A connecting portion extending inward in the radial direction, an inner ring body portion connected to the inner side of the connecting portion and surrounding an opening, and a mesh body portion connected to the inner wall surface of the inner ring body portion and located in the opening, the outer portion The ring body part, the connecting part, and the inner ring body part cooperate to define a clamping groove into which the clamping part extends. The anti-seismic fan according to claim 4, wherein the shock-absorbing bearing member further includes a tenon portion protruding from the extending portion toward the outer stop portion, and the outer ring body portion of the protective net is recessed to form a card for the card Insert groove inserted in the tenon. The anti-seismic fan according to claim 5, wherein the mounting seat of the fan frame has a seat body portion connected to the outer frame wall, and an axial tube portion protruding from the seat body portion toward the protective net, the fan The wheel includes a casing disposed coaxially with the shaft tube portion and surrounding the shaft tube portion, and a plurality of fan blades connected to the outer peripheral surface of the housing and arranged in a ring-shaped interval with each other, and the driving mechanism is provided in the shaft tube portion And the shell. The anti-vibration fan according to claim 6, wherein the driving mechanism includes at least one inner bearing provided in the shaft tube portion, and a rotating shaft rotatably inserted in the at least one inner bearing and fixedly connected to the housing A coil surrounding the shaft tube portion and fixed between the shaft tube portion and the housing in the radial direction of the shaft tube portion, and at least one coil disposed on the inner peripheral surface of the housing, And a magnet ring between the coil and the casing.

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