TWI599725B - Series fan inclination structure - Google Patents

Description

Tandem fan tilt structure

The invention relates to a tilting structure of a series fan, in particular to a tilting structure of a series fan which can greatly reduce vibration and noise.

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.

Please refer to FIG. 1A and FIG. 1B. At present, the parallel fan 1 is used in the industry, and the fan frames 10 are connected in series and used in series. Sometimes, when the heat is dissipated for a large device, the fans in series are used in parallel. . When the fan 1 is running, the design principle of the motor torque operation itself will inevitably generate vibration, especially the parallel fan 1 which is formed by two or more fans 1 side by side. It is known that the structure of the parallel fan 1 can increase the air volume when used. The heat inside the electronic product is discharged to the outside, but when all the parallel fans 1 are simultaneously operated together, the fundamental frequency of the vibration of the fan 1 of each fan 1 is affected, which causes a serious resonance effect of each of the frame frames 10, and also because The relationship of the parallel fan 1 makes the development of the noise dipole more serious under the interaction of the two fans, and generates a huge noise.

As described above, the conventional disadvantages have the following disadvantages: 1. The fan has a large vibration; 2. The fan generates severe noise due to the interaction of the dipole development.

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, it is a primary object of the present invention to provide a tandem structure of a tandem fan that can greatly reduce vibration.

A secondary object of the present invention is to provide a tandem fan tilting structure that can destroy the noise dipole interaction to achieve a noise reduction effect.

In order to achieve the above object, the present invention provides a tandem fan tilting structure, comprising a frame group having an inclined shape, a first rotor group and a second rotor group, wherein the inclined frame group has an accommodation. a first space and a second space and a flow guiding channel are formed in the accommodating space, the first space is inclined at a first pedestal, and the second space is inclined at a second pedestal a flow guiding channel is formed between the first and second bases, and the flow guiding channel is connected to the first and second spaces, and the first rotor group is correspondingly disposed on the first base, the first The rotor group has a first axis and a plurality of first blades. The first axis is pivotally disposed on the first base, and the second rotor is disposed on the second base. The second rotor group has a second axial center and a plurality of second blades, and one end of the second axial center is pivotally disposed on the second base.

According to the design of the structure of the present invention, the slanted frame group has a horizontal axis, and the horizontal axis forms a first angle with the inclined outer wall of the frame, and the slanted frame The set has a first vertical axis, the vertical axis forming a second angle with the first base, the inclined frame set having a second vertical axis, the vertical axis forming a second base a third angle, in other words, because the structure of the inclined frame group is inclined, and the first and second bases are inclined on the inner wall of the frame group, When the first and second rotor sets are pivotally disposed on the first and second bases, the structure is also decliped, and the entire series fan is inclined to change. The airflow enters the flow direction of the series fan structure, thereby destroying the audio development of the dipole, improving the dipole interaction of the two fans after the parallel connection of the conventional series fan, and generating great vibration and noise, thereby achieving a substantial noise reduction effect.

2‧‧‧Series fan tilting structure

21‧‧‧Slanted frame group

22‧‧‧ accommodating space

221‧‧‧First space

222‧‧‧Second space

223‧‧‧drain

224‧‧‧First base

2241‧‧‧First support

225‧‧‧Second base

2251‧‧‧second support

226‧‧‧ first frame

2261‧‧‧First air inlet

2262‧‧‧First air outlet

227‧‧‧ second framework

2271‧‧‧Second air inlet

2272‧‧‧Second air outlet

228‧‧‧上上

229‧‧‧ Lower frame

23‧‧‧First rotor group

231‧‧‧First accommodation

232‧‧‧first axis

233‧‧‧First leaf

24‧‧‧Second rotor set

241‧‧‧Second housing

242‧‧‧Second axis

243‧‧‧second leaf

25‧‧‧First stator set

26‧‧‧Second stator set

L1‧‧‧ horizontal axis

Α‧‧‧first angle

L2‧‧‧first vertical axis

Β‧‧‧second angle

L3‧‧‧second vertical axis

Γ‧‧‧third angle

3‧‧‧ airflow

1A is a perspective view of a conventional series fan structure; FIG. 1B is a combined sectional view of a conventional series fan structure; and FIG. 2 is an exploded perspective view of the first embodiment of the series fan inclined structure of the present invention; 3 is a perspective assembled view of the first embodiment of the tandem fan tilting structure of the present invention; FIG. 4 is a cross-sectional view of the first embodiment of the tandem fan tilting structure of the present invention; FIG. 6 is a perspective exploded view of a third embodiment of the tandem fan tilting structure of the present invention; and FIG. 7 is a perspective combination of the third embodiment of the tandem fan tilting structure of the present invention. Figure 8 is a perspective assembled view of a fourth embodiment of the tandem fan tilting structure of the present invention; and Figure 9 is a combined sectional view of the fourth embodiment of the tandem fan tilting structure of the present invention.

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.

2, 3, and 4 are a perspective exploded view and a perspective assembled view and a cross-sectional view of a first embodiment of the tilting structure of the tandem fan of the present invention. As shown, a tandem fan tilting structure 2 includes a The slanted frame group 21 and the first rotor group 23 and the second rotor group 24, the slanted frame group 21 has an accommodating space 22, and a first space 221 is formed in the accommodating space 22. And a second space 222 and a guiding channel 223, wherein the first space 221 is inclined with a first base 224, and the second space 222 is inclined with a second base a 224, the flow channel 223 is formed between the first and second pedestals 224, 225, and the flow channel 223 is in communication with the first and second spaces 221, 222, the first pedestal 224 a plurality of first support portions 2241, the second base 225 has a plurality of second support portions 2251, and the first and second support portions 2241, 2251 are connected to the inner wall of the inclined frame group 21, and The structural features of the first and second supporting portions 2241, 2251 can be designed as a stationary blade wing structure (as shown in FIG. 2) or a rib structure (not shown) according to the needs of the user, without affecting The effect achieved by the present invention; the inclined frame group 21 has a horizontal axis L1, and the horizontal axis L1 forms a first angle α with the outer wall of the inclined frame group 21, and the inclined shape is The frame group 21 has a first vertical axis L2, and the first vertical axis L2 forms a second angle β with the first base 224. Further, the inclined frame group 21 has a second vertical axis. L3, the second vertical axis L3 forms a third angle γ with the second pedestal 225, wherein the first, second, and third angles α, β, γ There is no limitation on the size of the angle. The degree of inclination of the frame group 21 which is inclined is designed according to the user's requirements, and the first and second bases 224 and 225 are obliquely placed in the first and second spaces 221 and 222. The first rotor group 23 has a first axis 232 and a plurality of first blades 233, the first axis One end of the 232 is pivotally disposed on the first base 224. The first rotor assembly 23 further has a first receiving portion 231 for receiving a first stator assembly 25; the second rotor assembly 24 is correspondingly disposed on The second rotator 225 has a second axis 242 and a plurality of second blades 243. The second axis 242 is pivotally disposed on the second pedestal 225. The second rotor assembly 24 further has a second receiving portion 241 for accommodating a second stator assembly 26; Continuing to refer to Figures 2 and 3, in the embodiment, the inclined frame group 21 has a more a first frame 226 and a second frame 227 , the first frame 226 and the first base 224 are integrally formed, the second frame 227 and the second base 225 For the integral molding, the combination of the first and second frames 226, 227 is selected to be fitted or locked or bonded or snapped or fastened, wherein the first frame 226 has a first air inlet. 2261 and a first air outlet 2262, the first air inlet 2261 and The first air outlet 2262 is connected to the first space 221, and the second frame 227 has a second air inlet 2271 and a second air outlet 2272. The second air inlet 2271 and the second air outlet 2272 are The first space 222 of the first frame 226 is correspondingly connected with the second air inlet 2271 of the second frame 227. The first air outlet 2262 of the first frame 226 is opposite to the second air outlet 2272 of the second frame 227, as shown in FIG. 5, which is the second of the present invention. [Embodiment], since the structure of the inclined frame group 21 is inclined, and the first and second bases 224, 225 are inclined to the inner wall of the frame group ( That is, the first and second pedestals 224, 225 and the first and second vertical axes L2, L3 form a second and third angles β, γ, as shown in FIGS. 4 and 5, so that the first When the two rotor sets 23 and 24 are pivoted on the first and second bases 224 and 225, the structure is also inclined at an angle relative to the horizontal axis L1. The connecting fan forms a slanted structure. When the airflow 3 enters the first space 221 from the first air inlet 2261, the second air inlet 2271 flows into the second air inlet 2271 through the air guiding channel 223 and the first air outlet 2262. And the second space 222, the last airflow 3 flows out of the second air outlet 2272, changing the flow pattern of the airflow 3 into the series fan structure, thereby destroying the audio development of the dipole, and improving the conventional series fan in parallel after use. The dipole interaction of the fan produces great vibration and noise, achieving a significant noise reduction effect. Please refer to FIGS. 6 and 7 for an exploded perspective view and a perspective view of a third embodiment of the tilting structure of the tandem fan of the present invention. The corresponding relationship between the components and the components of the tilting structure of the tandem fan is in tandem with the foregoing. The tilting structure of the fan is the same, so it will not be described here. However, the most important difference between the tilting structure of the tandem fan and the foregoing is that the tilted frame group 21 is presented in another embodiment in this embodiment. The slanted frame group 21 has an upper frame 228 and a lower frame 229. In the embodiment, the lower frame 229 and the first and second pedestals 224 and 225 are integrally formed, but are not cited. To be limited, in the actual implementation, the upper frame 228 and the first and second bases 224 and 225 are integrally formed (not shown), and the upper and lower frames 228 and 229 are The combination is a choice of fitting or locking or bonding or Any one of the snapping or snapping, through the structural design of the embodiment, can also achieve the same effect as the foregoing embodiment.

Finally, please refer to FIGS. 8 and 9 , which are perspective views and combined sectional views of a fourth embodiment of the tilting structure of the tandem fan of the present invention. The corresponding relationship between the components and the components of the tilting structure of the tandem fan is in tandem with the foregoing. The inclined structure of the fan is the same, so it will not be described here. However, the most important difference between the inclined structure of the series fan and the foregoing is that the inclined frame groups 21 are connected in series and then used in parallel to form a pair. The series fan tilting structure 2 for heat dissipation of large equipment improves the dipole interaction of the two fans after the parallel connection of the conventional series fan, and generates great vibration and noise, thereby achieving a substantial noise reduction effect.

As described above, the present invention has the following advantages as compared with the conventional ones: 1. greatly reducing vibration; 2. greatly reducing noise generated by dipole interaction.

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.

2‧‧‧Series fan tilting structure

21‧‧‧Slanted frame group

226‧‧‧ first frame

2261‧‧‧First air inlet

227‧‧‧ second framework

2272‧‧‧Second air outlet

Claims (11)

The slanting structure of the series fan includes: a slanted frame group having an accommodating space, a first space and a second space and a guiding channel formed in the accommodating space, the first space A first pedestal is obliquely disposed, and a second pedestal is obliquely disposed at the second space, the flow guiding channel is formed between the first and second pedestals, and the guiding channel and the first and second spaces are Connected to each other; a first rotor set is disposed on the first base, the first rotor set has a first axis and a plurality of first blades, and the first axis is pivoted at the one end And a second rotor set correspondingly disposed on the second base, the second rotor set has a second axis and a plurality of second blades, and the second axis is pivoted at one end Provided on the second base. The series fan inclined structure according to claim 1, wherein the inclined frame group has a horizontal axis, and the horizontal axis forms a first angle with the inclined outer wall of the frame group. The tandem fan tilting structure of claim 1, wherein the inclined frame group has a first vertical axis, and the first vertical axis forms a second angle with the first base. The tandem fan tilting structure of claim 1, wherein the inclined frame group has a second vertical axis, and the second vertical axis forms a third angle with the second base. The tandem fan tilting structure of claim 1, wherein the inclined frame group further has a first frame and a second frame, and the first frame and the first base are integrally formed. The second frame and the second base are integrally formed. The tandem fan tilting structure of claim 5, wherein the combination of the first and second frames is selected to be fitted or locked or bonded or snapped or snapped. The tandem fan tilting structure of claim 5, wherein the first frame 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 air space. The second frame 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 space. The tandem fan tilting structure according to claim 1, wherein the inclined frame group further has an upper frame and a lower frame, and the lower frame is integrally formed with the first and second bases. The tandem fan tilting structure of claim 8, wherein the combination of the upper and lower frames is selected to be fitted or locked or bonded or snapped or snapped. The tandem fan tilting structure of claim 1, wherein the first base has a plurality of first supporting portions, and the second base has a plurality of second supporting portions, the first and second supporting portions are connected to the The inner wall of the inclined frame group, wherein the first and second support portions are any one of a vane structure or a rib structure. The tandem fan tilting structure of claim 1, wherein the first rotor group has a first receiving portion for accommodating a first stator group, and the second rotor group has a second housing portion for accommodating a first Two stator sets.