TWI599154B - Series fan structure - Google Patents

Description

Tandem fan structure

The invention relates to a series fan structure, in particular to a series fan structure which can greatly improve the noise generated by the vibration of the series fan and increase the air flow.

With the continuous advancement of technology, people's dependence on various electronic devices has also increased; however, during operation, components inside electronic products (such as computers, notebook computers) generate high heat, if the heat cannot be exported in time. In addition to electronic products, it is prone to overheating problems. Therefore, most of the electronic products often use a fan to keep the electronic product operating at a certain operating temperature range. Referring to FIG. 1 , it is conventionally known that the series fan 1 has the same size of the fan frame 10 , and the fan frame 10 is assembled with a fan 11 and a motor (not shown) to form a fan. When the fan is running, the design principle of the torque operation of the motor itself will inevitably generate vibration, especially a series fan which is formed by a series of two or more fans connected in series. According to the structure of the conventional series fan, the system only passes through the fan frame 10 The buckle structure or the screw lock structure 12 is connected in series with the frame 10, and the series connection cannot change the vibration state due to the combination of the fan center axis. When the fan wheel 11 inside the two frames 10 rotates at the same time, Under the influence of the vibration frequency of the two wheels 11, the two frames 10 will have a serious resonance effect, and the resonance effect will also cause a huge noise in the series fan. In addition, the conventional series fan operates during the operation. The fan frames are directly connected in series, so the air volume drawn by the fan cannot be completely discharged by another fan (there is a problem that some air volume is lost when transmitted from one fan to another), resulting in a conventional series fan. The wind flow is small. .

As mentioned above, the conventional disadvantages have the following disadvantages: 1. The vibration of the fan cannot be effectively reduced; 2. The fan generates severe noise due to vibration; 3. The wind flow is small.

Therefore, how to solve the above problems and problems in the past, that is, the inventors of this case and the relevant manufacturers engaged in this industry are eager to study the direction of improvement.

Accordingly, in order to effectively solve the above problems, the main object of the present invention is to provide a tandem fan structure which can greatly improve the noise and vibration problems of the series fan.

A secondary object of the present invention is to provide a tandem fan structure having an effect of increasing wind flow.

To achieve the above objective, the present invention provides a series fan structure, comprising a series fan group and a combination member, the series fan group having a first fan oppositely connected to a second fan, the first fan having a first The fan frame defines a first accommodating space, the first accommodating space accommodates a first turret group, the second fan has a second framing frame and defines a second accommodating space, and the second accommodating space a second moving blade group is disposed in the space, the assembly is disposed between the first frame and the second frame, and the assembly is provided with a plurality of holes and is connected to the first and second receiving spaces. .

Through the design of the structure of the present invention, the assembly having the plurality of holes is disposed between the first and second frame frames, and the noise and vibration problems of the conventional series fan can be greatly improved, and the wind is greatly improved. Traffic effect.

2‧‧‧Series fan structure

21‧‧‧Series fan group

211‧‧‧First fan

2111‧‧‧First air inlet

2112‧‧‧First air outlet

212‧‧‧First frame

213‧‧‧First accommodation space

214‧‧‧ Combination Department

215‧‧‧First moving leaf group

2151‧‧‧first axis

2152‧‧‧First leaf

216‧‧‧First stationary leaf

217‧‧‧First base

221‧‧‧second fan

2211‧‧‧second air inlet

2212‧‧‧Second air outlet

222‧‧‧second frame

223‧‧‧Second accommodating space

224‧‧‧Combination Department

225‧‧‧second moving leaf group

2251‧‧‧Second axis

2252‧‧‧second leaf

226‧‧‧Second vane

227‧‧‧Second base

23‧‧‧assemblies

231‧‧‧ holes

24‧‧‧Locker

1 is an exploded perspective view of a conventional series fan structure; FIG. 2 is an exploded perspective view of a first embodiment of the series fan structure of the present invention; and FIG. 3 is a first embodiment of the series fan structure of the present invention. 3 is a perspective exploded view of a second embodiment of the series fan structure of the present invention; 5 is a perspective assembled view of a second embodiment of the series fan structure of the present invention; FIG. 6 is a perspective exploded view of a third embodiment of the series fan structure of the present invention; and FIG. 7 is a series fan structure of the present invention. A three-dimensional combination diagram of the third embodiment.

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 FIG. 2 and FIG. 3 , which are perspective exploded view and perspective assembled view of the first embodiment of the series fan structure of the present invention. As shown in the figure, a series fan structure 2 includes a series fan set 21 and a combination. The second fan 211 has a first fan 211 and a second fan 221, wherein the first fan 211 is opposite to the second fan 221, and the first fan 211 has a first fan frame 212 and A first air inlet 2111 and a first air outlet 2112, and the first air inlet 2111 and the first air outlet 2112 together define a first accommodating space 213, and the first accommodating space 213 is provided with a first a first moving blade group 215 having a first axis 2151 and a plurality of first blades 2152, wherein the first air outlet 2112 is provided with a first base 217 and a first vane 216, one end of the first axis 2151 is assembled with the first base 217; the second fan 221 has a second fan frame 222, a second air inlet 2211 and a second air outlet 2212. The second air inlet 2211 and the second air outlet 2212 together define a second accommodating space 223. The second accommodating space 223 has a second moving blade group 225. The second moving blade group 225 has a second axis 2251 and a plurality of second blades 2252. The second air outlet 2212 is provided with a second position. a base 227 and a second vane 226, one end of the second shaft 2251 is assembled with the second base 227; the assembly 23 is disposed on the first frame 212 and the second Between the frame frames 222, the assembly member 23 is provided with a plurality of holes 231 which are vertically or obliquely straight through passages and communicate with the first and second accommodating spaces 213 and 223. The material of the assembly member 23 is Choice of metal (aluminum or steel or other alloy) In the present embodiment, the assembly 23 is a waveguide plate, but is not limited thereto, and may be other equivalents in a specific implementation, the hole 231 The shape of the hole is hexagonal, but is not limited thereto. The shape of the holes 231 may also be a geometric shape of a circle, a triangle, a rectangle or the like, that is, the change of the shape of the hole 231 does not affect the achievement of the present invention. The effect.

In the embodiment, the assembly member 23 is disposed at a position between the first air outlet 2112 of the first fan 211 and the second air inlet 2211 of the second fan 221, but in actual implementation, The assembly position of the assembly member 23 is not limited. As shown in FIGS. 4 and 5, the assembly member 23 can also be correspondingly disposed on the first air outlet 2112 and the second portion of the first fan 211. At the position between the second air outlets 2212 of the fan 221, both types of serial connection can achieve the effect of the invention.

Continuing to refer to FIGS. 2 and 3, through the design of the structure of the present invention, the combination of the series fan group 21 and the assembly 23 is such that the assembly 23 is embedded in the first out of the first fan 211. At the position of the tuyere 2112, and flush with the first air outlet 2112, in other words, the assembly 23 is fitted to the inner wall of the first fan frame 212 and is aligned with the first air outlet 2112. The second fan 221 is further fixed in series with the first fan 211, so that the assembly 23 is fixed between the first and second fans 211 and 221 through the assembly. The arrangement of 23 greatly reduces the vibration problem caused by the resonance effect between the two series fan fan frames during operation, and greatly reduces the noise problem caused by the vibration, and in addition, the setting through the assembly 23 The air volume of the first air inlet 2111 can be recirculated through the rectification of the assembly 23 to achieve the effect of increasing the air flow. Please refer to FIG. 6 and FIG. 7 , which are perspective exploded views and a three-dimensional combination diagram of a third embodiment of the series fan structure of the present invention. The corresponding components of the series fan structure and the corresponding relationship between the components are connected in series with the foregoing. The fan structure 2 is the same, so it will not be described here. However, the main difference between the series fan structure and the foregoing is that the periphery of the first frame 212 protrudes from the plurality of combining portions 214, and the periphery of the second frame 222 A plurality of joints 224 are formed. The joints 224 are correspondingly arranged to form the combination portion 214. The plurality of fasteners 24 extend through the combination portion 214 and the joint portion 224. The fasteners 24 are selected as screws, but are not limited. herein, In the embodiment, the combination of the series fan group 21 and the assembly 23 is assembled into a series by a locking method. The series fan structure 2 is not limited thereto. In actual implementation, the same effects as described above can also be achieved by other equivalent methods such as bonding or snapping or snapping.

As described above, the present invention has the following advantages over the conventional ones: 1. greatly improving the vibration problem of the series fan; 2. greatly reducing the noise problem caused by the vibration of the series fan; 3. increasing the air flow.

The present invention has been described in detail above, but the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention. That is, the equivalent changes and modifications made by the scope of the present application should remain within the scope of the patent of the present invention.

21‧‧‧Series fan group

211‧‧‧First fan

2111‧‧‧First air inlet

2112‧‧‧First air outlet

212‧‧‧First frame

213‧‧‧First accommodation space

215‧‧‧First moving leaf group

2151‧‧‧first axis

2152‧‧‧First leaf

216‧‧‧First stationary leaf

217‧‧‧First base

221‧‧‧second fan

2211‧‧‧second air inlet

2212‧‧‧Second air outlet

222‧‧‧second frame

223‧‧‧Second accommodating space

225‧‧‧second moving leaf group

2251‧‧‧Second axis

2252‧‧‧second leaf

226‧‧‧Second vane

227‧‧‧Second base

23‧‧‧assemblies

231‧‧‧ holes

Claims (10)

A series fan structure includes: a series fan group having a first fan oppositely connected to a second fan, the first fan having a first fan frame and defining a first accommodating space, the first accommodating space The first fan blade group has a second fan frame and defines a second accommodating space, the second accommodating space accompanies a second turret group; and a combination member Between the first frame and the second frame, the assembly is provided with a plurality of through-holes communicating with the first and second accommodating spaces, and the assembly is fitted in the first frame Inner wall. The tandem fan structure of claim 1, wherein the first fan has a first air inlet and a first air outlet, and the first air inlet and the first air outlet are connected to the first housing space. The second fan has a second air inlet and a second air outlet, and the second air inlet and the second air outlet are in communication with the second housing space. The tandem fan structure of claim 2, wherein the assembly is correspondingly disposed between the first air outlet and the second air inlet. The tandem fan structure of claim 2, wherein the assembly is correspondingly disposed between the first air outlet and the second air outlet. The tandem fan structure of claim 2, wherein a first base and a first vane are disposed at the first air outlet, and a second base and a second are disposed at the second air outlet. Two static leaves. The tandem fan structure of claim 5, wherein the first moving blade group further has a first axis and a plurality of first blades, and the first axis is provided with the first base at one end thereof. The second moving blade group further has a second axis and a plurality of second blades, and the second axis is provided with the second base at one end. The tandem fan structure of claim 1, wherein the assembly is a waveguide plate. The tandem fan structure of claim 1, wherein the holes are in the shape of a circle or a hexagon or a geometric shape. The tandem fan structure of claim 1, wherein the combination of the series fan set and the assembly is selected to be fitted or locked or bonded or snapped or snapped. The tandem fan structure of claim 1, wherein the holes are straight or oblique straight-through passages.