TWM565469U - Fan frame with vibration reduction structure and fan thereof - Google Patents

Abstract

A fan frame body and a fan thereof having a vibration damping structure include a frame body having a first port and a second port and a first channel and a bottom, wherein the first and second ports are respectively disposed on The upper and lower ends of the fan frame are disposed between the first and second ports and communicate with the first and second ports, and the bottom portion is disposed at the second port. A shaft tube and a plurality of vanes are disposed at the bottom, and the bottom ends of the vane are respectively connected to the bottom portion and the frame body, and the inner wall of the fan frame body is annularly arranged with a plurality of vibration damping structures, and the vibration damping structure Any one of a convex structure or a groove structure may be selected.

Description

Fan frame with vibration damping structure and fan thereof

The present invention relates to a fan frame and a fan thereof, and particularly to a fan frame having a vibration damping structure and a fan thereof.

In the field of heat dissipation, in order to effectively dissipate heat, it is conventional to use a cooling airflow generated by a fan to perform forced heat dissipation to dissipate heat. The principle of the fan generating the cooling airflow is nothing more than the fan blade design on the rotor, driving the rotor through the motor and the circuit board, so that the rotor rotates at the rated speed, and the rotating wing blade turns to work to cause the thrust. Cool the airflow. When the rotor rotates, the fan frame often generates unnecessary fundamental frequency vibration and generates extra noise. Moreover, the fan applied to the servo and the computer, the fundamental frequency vibration generated by the rotation will affect the hardness in the server and the computer. The reading efficiency of the disc and the fundamental frequency vibration generated by the rotation of the rotor also shorten the service life of the fan itself, as well as IT equipment or communication equipment such as servers and computers, home and audio-visual equipment, and industrial equipment. At present, it is conventional to reduce the fundamental vibration of the fan rotor by adjusting the balance of the rotor counterweight or by adding a spacer or other material that absorbs vibration and sound to the fan frame to absorb the vibration.

However, the above-described conventional methods generate additional costs due to the investment of additional materials such as weights, vibration absorbing pads, and the like.

Therefore, how to reduce the fundamental frequency vibration to increase the service life of the fan frame, the server and the computer and the like, and increase the reading efficiency, and reduce the cost of vibration reduction are the directions that researchers in the field must work hard.

One of the purposes of this creation is to reduce the fundamental frequency vibration of the fan frame while reducing the cost of vibration reduction.

Another purpose of the creation is to increase the service life and reading efficiency of the fan frame of the fan and the IT equipment or communication equipment such as the server and the computer, the home and audio-visual equipment and the industrial equipment to which the fan frame is applied.

In order to achieve the above object, the present invention provides a fan frame body having a vibration damping structure, comprising: a frame body having a first port and a second port and a first channel and a bottom, the first The second port is disposed on the upper and lower ends of the frame body, and the flow channel is disposed between the first and second ports and communicates with the first and second ports, wherein the bottom is disposed at the bottom a second shaft is disposed at the bottom of the shaft and a plurality of vanes, and the two ends of the vane are respectively connected to the bottom and the frame body, and the inner wall of the fan frame is annularly arranged with a plurality of vibration damping The structure, the damping structures are selected to be either a convex structure or a groove structure.

In order to achieve the above object, the present invention further provides a fan having a vibration-damping structure of a fan frame, comprising: a certain sub-group having a plurality of silicon steel sheets and a plurality of coils wound around the outer steel sheets, the stator set being sleeved An outer portion of the shaft; a rotor assembly having a mandrel and a hub and a permanent magnet, the mandrel and the hub being vertically disposed with each other, the outer ring of the hub is provided with a plurality of blades, and the permanent magnet is disposed on the hub An inner circumferential surface; and a bearing disposed inside the shaft cylinder, the spindle being rotatably pivoted to the bearing.

With the design of the present invention, the structure of the frame body can be strengthened to reduce the amplitude of the fundamental frequency vibration by 30 to 50%, thereby enabling the application of the fan frame having the vibration damping structure and the fan thereof (such as a server or a computer). ) Achieve better hard disk read efficiency.

10‧‧‧Fan frame with vibration-damping structure

100‧‧‧Fan frame body

100a‧‧‧ first frame

100b‧‧‧second framework

100c‧‧‧ third frame

101‧‧‧ first port

102‧‧‧second port

103‧‧‧ third port

104‧‧‧fourth port

105‧‧‧ fifth port

106‧‧‧ sixth port

107‧‧‧ flow path

108‧‧‧ bottom

1081‧‧‧ shaft tube

1082‧‧‧Silence leaves

109‧‧‧Vibration structure

109a‧‧‧ first part

109b‧‧‧ Part II

109c‧‧‧Part III

1091‧‧‧ convex structure

1092‧‧‧ Groove structure

20‧‧‧stator group

201‧‧‧矽Steel sheet

202‧‧‧ coil

30‧‧‧Rotor group

301‧‧‧ mandrel

302‧‧·wheels

303‧‧‧ fan leaves

304‧‧‧ permanent magnet

40‧‧‧ bearing

X‧‧‧Virtual axis of vibration reduction structure

Y‧‧‧Fan frame body virtual axis

‧‧‧‧ angle

The following figures are intended to make the present invention easier to understand, and the drawings are described in detail herein and form part of the specific embodiments. Through the specific embodiments herein and with reference to the corresponding drawings, the specific embodiments of the present invention are explained in detail, and the function principle of the creation is explained. 1 is a perspective view of a first embodiment of a fan frame having a vibration damping structure; FIG. 2 is a first view of the first embodiment of the fan frame having a vibration damping structure. FIG. 3 is a partial enlarged view of the vibration damping structure of the first embodiment of the fan frame body having the vibration damping structure; FIG. 4 is the first fan frame body having the vibration damping structure. 2A is a cross-sectional view taken along line AA of the first embodiment of the present invention; FIG. 5 is a cross-sectional view taken along line AA of the first embodiment of the fan frame having the vibration damping structure; FIG. The present invention is a three-dimensional combination diagram of a first embodiment of a fan having a fan frame of a vibration damping structure; and FIG. 7 is a BB line of the first embodiment of the fan for creating a fan frame having a vibration damping structure. FIG. 8 is a schematic view showing the opposite direction of the extending direction of the blade and the damping structure of the first embodiment of the fan of the fan frame having the vibration damping structure.

The above object of the present invention, as well as its structural and functional features, will be described in accordance with the preferred embodiments of the drawings.

Please refer to the figures 1 , 2 and 3 , which are a perspective view of a first embodiment of a fan frame having a vibration damping structure, a cross-sectional view of the AA line of the first drawing, and a partial enlarged view of the vibration damping structure. As shown in the present disclosure, the fan frame 10 having the vibration damping structure of the present invention includes a frame body 100, in this embodiment. The fan frame body 100 is represented as a single fan frame, but is not limited thereto, and other variations are described later.

The fan frame body 100 has a first port 101 and a second port 102, and a first channel and a bottom portion 108. The first and second ports 101 and 102 are disposed on the frame body 100. The flow path 107 is disposed between the first and second ports 101 and 102 and communicates with the first and second ports 101 and 102. The bottom portion 108 is disposed at the second port 102. The bottom portion 108 defines a shaft cylinder 1081 and a plurality of vanes 1082. The two ends of the vane 1082 are respectively connected to the bottom portion 108 and the frame body 100. The inner wall of the fan frame body 100 is arranged in a ring shape. The vibration damping structure 109 is selected to be either the convex structure 1091 or the groove structure 1092.

The damping structures 109 are in a geometric shape. In the embodiment, the damping structures 109 are parallelograms, but are not limited thereto. In other embodiments, the damping structures 109 may also be Other rectangles, circles, ovals or other shapes. The damping structures 109 respectively define a virtual axis X of the damping structure. In the present embodiment, the virtual axis X of the damping structure of each damping structure 109 is represented as being flat with each other. In other embodiments, each The virtual axis X of the damping structure of the damping structure 109 can also be represented as being mutually uneven. The frame body 100 defines a virtual axis Y of the frame body, and an arc angle α is defined between the virtual axis Y of the frame body and the virtual axis X of the vibration damping structure, and the angle α is 1 degree to 179 degrees or 181 degrees. The angle is up to 359 degrees. In the present embodiment, the damping structures 109 are represented as a uniform annular arrangement, that is, each of the damping structures 109 has the same separation distance. In other embodiments, the damping structures 109 may also be represented as no. Evenly arranged in a ring.

With the design of the present invention, the arrangement of the vibration damping structures 109 can strengthen the structure of the frame body 100, and reduce the amplitude of the fundamental frequency vibration by 30 to 50%, thereby enabling the device (such as a server or IT equipment or communication equipment such as computers, home and audio-visual equipment and industrial equipment can achieve better hard disk reading efficiency or reduce equipment vibration and increase stability.

Please refer to FIG. 4 , which is a cross-sectional view taken along line AA of FIG. 1 of the second embodiment of the fan frame having the vibration damping structure, and is supplemented with reference to the first, second and third figures, as shown in the figure. The structure and function of the embodiment are the same as those of the first embodiment, and therefore will not be described again here. However, the difference between the embodiment and the first embodiment is that the frame body 100 has a plurality of frames. The frame is axially superposed to form the frame body 100 and the vibration damping structures 109, and each of the axially stacked frames can be combined by a screw lock, a snap structure or an injection molding.

In the present embodiment, the frames of the frame body 100 are shown as having a first frame 100a and a second frame 100b. The first port 101 is formed on the upper side of the first frame 100a, and a third The port 103 is formed on the lower side of the first frame 100a, the second port 102 is formed on the lower side of the second frame 100b, and a fourth port 104 is formed on the upper side of the second frame 100b, and the first port The frame 100a and the second frame 100b are made of different materials.

The damping structure 109 has a first portion 109a formed on the first frame 100a and a second portion 109b formed on the second frame 100b and The first and second frames 100a, 100b should be axially overlapped to form the fan frame body 100. The third port 103 of the first frame 100a corresponds to the fourth port 104 of the second frame 100b. And the first portion 109a and the second portion 109b correspondingly form the vibration damping structure 109. The first frame 100a and the second frame 100b are made of different materials. For example, the first frame 100a is made of PBT material, and the second frame 100b is made of PA66. Because the vibration frequency of different materials is different, it can be further The resonance of the first and second frames 100a, 100b is reduced while also reducing noise.

Please refer to FIG. 5 , which is a cross-sectional view taken along line AA of FIG. 1 of the third embodiment of the fan frame having the vibration damping structure, and is supplemented with reference to FIG. 4 , as shown in the figure. The structure and function of the second embodiment are the same as those of the second embodiment described above, and therefore will not be described again here. However, the difference between the embodiment and the second embodiment is that the frames of the frame body 100 are represented as more A third frame 100c is formed on the upper side of the third frame 100c, and a sixth port 106 is formed on the lower side of the third frame 100c. The first frame 100a and the second frame are formed. 100b and the third frame 100c are made of different materials.

The damping structure 109 further has a third portion 109c formed on the third frame 100c, and the upper portion of the third portion 109c corresponds to the first portion 109a, the third portion The lower portion of the portion 109c corresponds to the second portion 109b, and the first, second, and third frames 100a, 100b, and 100c are axially overlapped to form the frame body 100, and the third port 103 corresponds to the fifth port 105. The fourth port 104 corresponds to the sixth port 106, and the first portion 109a, the second portion 109b and the third portion 109c correspondingly form the damping structure 109. The first frame 100a and the second frame 100b and the third frame 100c are made of different materials. For example, the first frame 100a is made of PBT material, and the second frame 100b is made of PA66 material. The third frame 100c is made of PA66 material. For the PPE material, since the vibration frequencies of different materials are also different, the resonance of the first, second, and third frames 100a, 100b, and 100c can be further reduced, and noise is also reduced.

Please refer to Figures 6 and 7, which are the three-dimensional combination diagram of the first embodiment of the fan of the creation and the BB line diagram of the seventh diagram, and refer to Figures 1 to 5 together, as shown in the figure. The fan of the embodiment can be applied to any of the first to third embodiments of the fan frame having the vibration damping structure, and the technical features of the foregoing embodiments will not be described herein. The fan includes a certain subset 20, a rotor assembly 30, and a bearing 40.

The stator assembly 20 has a plurality of silicon steel sheets 201 and a plurality of coils 202 are disposed around the outer steel sheets 201. The stator assembly 20 is sleeved outside the shaft cylinders 1081. The rotor assembly 30 has a mandrel 301 and a hub 302 and a permanent magnet 304. The mandrel 301 and the hub 302 are vertically disposed with each other. The outer ring of the hub 302 is provided with a plurality of blades 303. The bearing 40 is disposed inside the shaft cylinder 1081. The mandrel 301 is rotatably pivoted to the bearing 40 to make the permanent magnet 304 correspond to the outer surface of the silicon steel sheet 201.

Referring to FIG. 8 , the fan blade and the vibration damping structure extend in opposite directions. The axial extension directions of the fan blades 303 are opposite to the axial extension directions of the vibration damping structures 109 . By the arrangement of the vibration damping structures 109, the structure of the fan frame body 100 can be strengthened, and the amplitude of the fundamental frequency vibration generated when the rotor rotates is reduced by 30 to 50%, thereby enabling the device (such as a server or a computer) to apply the fan. Such as IT equipment or communication equipment, home and audio-visual equipment and industrial equipment) can achieve better hard disk reading efficiency or reduce equipment vibration and increase stability. In addition, the damping structures 109 also change the interaction between the free ends of the blades 303 and the frame body 100, further reducing fundamental frequency resonance and noise.

The present invention has been described in detail above, but the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited. That is, all changes and modifications made in accordance with the scope of this creation application shall remain covered by the patents of this creation.

Claims (10)

A fan frame body having a vibration damping structure, comprising: a frame body having a first port and a second port and a first channel and a bottom, wherein the first and second ports are respectively disposed on the fan The upper and lower ends of the frame body are disposed between the first and second ports and communicate with the first and second ports, and the bottom portion is disposed at the second port, the bottom is suspended A shaft tube and a plurality of vanes are disposed, and the bottom ends of the vane are respectively connected to the bottom portion and the frame body, and the inner wall of the fan frame body is arranged in a ring shape with a plurality of vibration damping structures, and the vibration damping structures are selected Any of a convex structure or a groove structure. The fan frame body having the vibration damping structure according to claim 1, wherein the frame body has a plurality of frames, and the frames are axially overlapped to form the frame body and the vibration damping structures. The fan frame having a vibration damping structure according to the second aspect of the invention, wherein the frame has a first frame and a second frame, and the first opening is formed on the upper side of the first frame, a three-way opening formed on a lower side of the first frame, a second opening formed on a lower side of the second frame, a fourth opening formed on an upper side of the second frame, the first frame and the second The frame material is different. The fan frame having a vibration damping structure according to claim 3, wherein the vibration damping structure has a first portion and a second portion, and the first portion is formed in the first frame. The second portion is formed on the second frame and corresponds to the first portion. The first and second frames are axially overlapped to form the frame body. The third port corresponds to the fourth port, and the first portion A portion and the second portion correspondingly form the damping structure. The fan frame having the vibration damping structure according to claim 3, wherein the frame further has a third frame, a fifth port is formed on the upper side of the third frame, and a sixth port is formed. The first frame and the second frame and the third frame are made of different materials on the lower side of the third frame. The fan frame having a vibration damping structure according to claim 5, wherein the vibration damping structure has a first portion, a second portion and a third portion, the first portion being formed In the first frame, the second portion is formed in the second frame, the third portion is formed in the third frame, and the upper portion of the third portion corresponds to the first portion, the third portion The lower portion corresponds to the second portion, and the first, second and third frames are axially overlapped to form the frame body, the third port corresponds to the fifth port, and the fourth port corresponds to the sixth port And the first portion, the second portion and the third portion correspondingly form the damping structure. The fan frame body having the vibration damping structure according to claim 1, wherein the vibration damping structures are geometrically shaped and respectively define a virtual axis of the vibration damping structure, and the virtual axis of the vibration damping structure of each vibration damping structure The frame body defines a virtual axis of the frame body, and the virtual axis of the frame body defines an angle with each of the virtual axes of the vibration damping structure. The fan frame body having the vibration damping structure according to claim 1, wherein the vibration damping structures are uniformly arranged in a ring shape or in a non-uniform ring shape. A fan having a fan frame having a vibration damping structure according to any one of claims 1 to 8, comprising: a certain sub-group having a plurality of silicon steel sheets and having a plurality of coils wound around the outer surface of the steel sheet, the stator set being sleeved outside the shaft cylinder; a rotor group having a spindle and a hub and a permanent magnet, the spindle The hub is vertically disposed, the outer ring of the hub is provided with a plurality of blades, the permanent magnet is disposed on the inner circumferential surface of the hub; and a bearing is disposed inside the shaft, the spindle is rotatably pivoted thereon Bearing. In the fan of claim 9, the axial extension direction of the wing of the blade is opposite to the axial extension direction of the damping structures.