TWI618480B - Tandem fan structure - Google Patents

Abstract

A series fan structure includes a series fan unit and at least one first combination portion. The series fan unit has a first fan butt a second fan. The first fan has a first base and a first side wall. Decoordinating a first passage, the first base extends outwardly and the plurality of first support portions are connected to the first side wall, and the first support portions form a first communication space to communicate with the first passage, the second The fan has a second base and a second side wall and defines a second passage. The second passage communicates with the first passage and the first communication space. The first combination portion is formed corresponding to the first connection. And communicating with the first supporting portion in the through space, the first combining portion having a plurality of first holes communicating with the first and second passages, and improving the vibration and noise of the conventional series fan through the design of the present invention Problems and can increase the effect of wind flow.

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 conventional 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 at least one first combination portion, the series fan group having a first fan oppositely connected to a second fan, the first fan having a first base and a first side wall together define a first passage, the first base extends outwardly, a plurality of first support portions are connected to the first side wall, and a first connection is formed between the first support portions The second space has a second base and a second side wall and defines a second passage. The second passage communicates with the first passage and the first communication space. A combination portion is formed in the first communication space and connected to the first support portion, and the first combination portion has a plurality of first holes communicating with the first and second channels.

According to the design of the structure of the present invention, the first combination portion having the plurality of first holes is formed on the first communication space of the first base, and the noise and vibration problems of the conventional series fan can be greatly improved. And to achieve the effect of increasing wind flow.

2‧‧‧Series fan structure

21‧‧‧Series fan group

211‧‧‧First fan

2111‧‧‧First air inlet

2112‧‧‧First air outlet

2113‧‧‧First base

2114‧‧‧First side wall

2115‧‧‧First Passage

2116‧‧‧First support

2117‧‧‧First connected space

2118‧‧‧Fixed Department

212‧‧‧second fan

2121‧‧‧second air inlet

2122‧‧‧Second air outlet

2123‧‧‧Second base

2124‧‧‧ second side wall

2125‧‧‧second channel

2126‧‧‧second support

2127‧‧‧Second connected space

2128‧‧‧Combination Department

213‧‧‧First Combination Department

2131‧‧‧ first hole

214‧‧‧Second combination department

2141‧‧‧Second hole

22‧‧‧First moving leaf group

221‧‧‧first axis

222‧‧‧First leaf

23‧‧‧Second moving leaf group

231‧‧‧Second axis

232‧‧‧second leaf

24‧‧‧Locker

Figure 1 is an exploded perspective view of a conventional tandem fan structure; 2 is a perspective exploded view of a first embodiment of a series fan structure of the present invention; FIG. 3 is a perspective assembled view of a first embodiment of the series fan structure of the present invention; and FIG. 4 is a series fan structure of the present invention. 1 is a perspective exploded view of a second embodiment of a series fan structure according to the present invention; and FIG. 6 is a perspective exploded view of a third embodiment of the series fan structure of the present invention; 7 is a perspective assembled view of a third embodiment of the series fan structure of the present invention; FIG. 8 is a cross-sectional view showing a third embodiment of the series fan structure of the present invention; and FIG. 9 is a sectional view of the series fan structure of the present invention. An exploded perspective view of four embodiments.

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 a series fan structure according to the present invention. As shown, a series fan structure 2 includes a series fan. The group 21 and the at least one first combination portion 213, the first fan 211 has a first fan 211 opposite to a second fan 212, and a plurality of fixing portions 2118 are protruded from a periphery of the first fan 211. A plurality of joints 2128 are formed on the periphery of the fan 212. The joints 2128 are correspondingly disposed with the fixing portion 2118. The plurality of fasteners 24 extend through the fixing portion 2118 and the joint portion 2128. In this embodiment, the fasteners 24 are provided. The first and second fans 211 are selected as the screws, but are not limited to the other embodiments (such as bolts or rivets or fasteners). In the embodiment, the first and second fans 211 are selected. The serial connection mode of 212 is assembled into the series fan group 21 in series by a locking method. However, the present invention is not limited thereto, and may be engaged or snapped or fitted or bonded in actual implementation. Other equivalent manners; the foregoing first fan 211 has a first base 2113 and a first side wall 2114 and jointly define a first channel 2115, the first base 2113 extends outwardly and the plurality of first supporting portions 2116 are connected to the first side wall 2114, a first communication space 2117 is formed between the first supporting portion 2116 and the first supporting portion 2116 and communicates with the first channel 2115. The first fan 211 further has a first air inlet 2111. And a first air outlet 2112, the first air inlet 2111 and the first air outlet 2112 are connected to the first air channel 2115, and the first base 2113 is formed at the first air outlet 2112. The first channel 2115 has a first moving blade group 22, the first moving blade group 22 has a first axis 221 and a plurality of first blades 222, and the first axis 221 is assembled at one end. The second pedestal 2113 has a second pedestal 2123 and a second side wall 2124 and defines a second channel 2125. The second channel 2125 communicates with the first channel 2115 and the first The second air inlet 212 and the second air outlet 2122 are connected to the second air inlet 2121 and the second air outlet 2122. The second air inlet 2121 and the second air outlet 2122 are connected to the second air channel 2125. The second base 2123 is formed at the second air outlet 2122, and the second channel 2125 is configured to receive a second motion. The second moving blade group 23 has a second axis 231 and a plurality of second blades 232, and the second axis 231 is provided with the second base 2123 at one end; the first combination part 213 is formed in the first communication space 2117 and is connected to the first support portion 2116. The first combination portion 213 has a plurality of first holes 2131 connected to the first and second channels 2115 and 2125. The first hole 2131 is hexagonal, but is not limited thereto. The shape of the first hole 2131 may also be a polygonal shape such as a circle, a triangle, a rectangle, or the like, that is, the first hole. The change of the shape of the 2131 does not affect the effect achieved by the present invention, and the first hole 2131 is a vertical or oblique straight-through channel structure. In addition, in the embodiment, the first combination portion 213 is The first base 2113 and the first side wall 2114 and the first support portion 2116 are integrally formed. In other words, the first combination portion 213 is directly injection molded on the first fan 211.

Through the design of the structure of the present invention, the arrangement of the series fan unit 2 is the first way that the first air outlet 2112 of the first fan 211 is docked with the second fan 212. The second air inlet 2121, when the series fan structure 2 is operated, the air flow first enters through the first air inlet 2111 The first channel 2115 is further passed through the first hole 2131 of the first combining portion 213 and then flows into the second channel 2125, and finally the airflow is discharged through the second air outlet 2122, so that the In addition to the vibration problem caused by the resonance effect during the operation of the series fan, the noise problem caused by the vibration can be reduced, and the design of the first hole 2131 passing through the first combination portion 213 can be passed through. The airflows of the first holes 2131 are rectified and then discharged to achieve an effect of increasing the air flow.

Referring to FIG. 5, it is a perspective exploded view of a second embodiment of the series fan structure of the present invention. The corresponding relationship between the components and components of the series fan structure is the same as that of the tandem fan structure described above. Therefore, the main difference between the series fan structure and the foregoing is that the first combination portion 213 is a first waveguide plate, which is correspondingly disposed in the first communication space 2117, in other words. The difference between the embodiment and the first embodiment is that the first combination portion 213 is a single component, and the first waveguide plate is assembled by any one of the following methods: bonding or snapping or fitting. The mode corresponding group is disposed in the first communication space 2117, and the foregoing effects can also be achieved.

Please refer to FIGS. 6, 7, and 8, which are perspective exploded views, a perspective assembled view, and a cross-sectional view of a third embodiment of the series fan structure of the present invention, wherein the components of the series fan structure and the corresponding components are connected. The relationship is the same as that of the foregoing series fan structure, so it will not be described here. However, the main difference between the series fan structure 2 and the foregoing is that the second base 2123 extends outwardly and the plurality of second support portions 2126 are connected to the first Two second side walls 2124 are formed between the second supporting portions 2126 to form a second communication space 2127 communicating with the second channel 2125. The second communication space 2127 forms at least one second combining portion 214, and the second combining portion 214 is The second supporting portion 2126 is connected to the first and second channels 2115 and 2125. The second hole 2141 is hexagonal, but not The shape of the second holes 2141 may also be a geometric shape of a polygon such as a circle, a triangle, a rectangle, or the like, that is, the change of the shape of the second holes 2141 does not affect the effect achieved by the present invention, and The second hole 2141 is Straight or oblique straight channel structure; In this embodiment, the second combination portion 214 is integrally formed with the second base 2123 and the second side wall 2124 and the second support portion 2126, and the series connection manner of the series fan group 21 is The first air outlet 2112 of the first fan 211 is correspondingly connected to the second air outlet 2122 of the second fan 212. Although the assembly is different from the first embodiment, the vibration of the series fan can be greatly improved. Noise problems and increase the effect of wind flow.

FIG. 9 is a perspective exploded view of a fourth embodiment of the series fan structure of the present invention. The corresponding relationship between the components and components of the series fan structure is the same as that of the tandem fan structure described above. Therefore, the main difference between the series fan structure and the foregoing is that the second combination portion 214 is a second waveguide plate, which is correspondingly disposed in the second communication space 2127, in other words, The difference between the embodiment and the foregoing third embodiment is that the second assembly portion 214 is a single component, and the second waveguide plate is assembled in any manner. The corresponding group is disposed in the second communication space 2127, and the foregoing effects can also be achieved.

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.

Claims (13)

A series fan structure includes: a series fan unit having a first fan oppositely connected to a second fan, the first fan having a first base and a first side wall and jointly defining a first channel, The first base extends outwardly to connect the first support portion to the first side wall, and the first support portion forms a first communication space to communicate with the first passage, the second fan has a second base and a second side wall and a second waveguide, the second channel communicates with the first channel and the first communication space; and at least a first combination portion, the first combination portion is a first waveguide plate and Correspondingly formed in the first communication space and connected to the first support portion, the first combination portion has a plurality of first holes communicating with the first and second channels. The tandem fan structure of claim 1, wherein the first combination portion is integrally formed with the first base and the first side wall and the first support portion. The tandem fan structure of claim 1, wherein the first waveguide plate is assembled in a manner that is selected to be bonded or engaged or fitted in any one of the first communication spaces. 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 in communication with the first air channel. The first pedestal is formed at the first air outlet, the second fan has a second air inlet and a second air outlet, and the second air inlet and the second air outlet are opposite to the second air outlet The channels are in communication, and the second pedestal is formed at the second air outlet. The tandem fan structure of claim 1, wherein the first hole is in a circular or hexagonal shape or a geometric shape, and the first hole is a vertical or oblique straight-through channel structure. The tandem fan structure of claim 1, wherein the second base further extends outwardly and the plurality of second support portions are connected to the second side wall, and the second support portions form a second communication space to communicate with the second support portion. Two channels. The tandem fan structure according to claim 6, wherein the second communication space forms at least one second combination portion, and the second combination portion is connected to the second support portion, and the second combination portion has a plurality of The two holes are in communication with the first and second channels. The tandem fan structure of claim 7, wherein the second combination portion is integrally formed with the second base and the second side wall and the second support portion. The tandem fan structure of claim 7, wherein the second combination portion is a second waveguide plate that is correspondingly disposed in the second communication space. The tandem fan structure of claim 9, wherein the second waveguide plate is assembled in a manner of selectively bonding or snapping or fitting any one of the corresponding groups in the second communication space. The tandem fan structure of claim 7, wherein the second hole is in the shape of a circle or a hexagon or a geometric shape, and the second hole is a vertical or oblique straight-through channel structure. The tandem fan structure of claim 1, wherein the first and second fans are connected in a manner of locking or snapping or snapping or fitting. The tandem fan structure of claim 1, wherein the first channel accommodates a first moving blade group, the first moving blade group has a first axis and a plurality of first blades, and the first axis One end of the core is provided with the first base, and the second channel is provided with a second moving blade group, the second moving blade group has a second axis and a plurality of second blades, and the second axis The second base is assembled at one end.