CN100441880C - fan system - Google Patents

Abstract

The invention relates to an axial-flow fan system, which comprises a first air supply device, a pipeline and a first axial-flow fan, wherein the first axial-flow fan mainly comprises a base, a rotor, a plurality of fan blades and the like, wherein each fan blade respectively comprises a driven part and a work-doing part; the driven part guides the airflow from the first air supply device to rotate due to an air supply port of the pipeline and drives the work part to rotate together, so that the axial flow fan has the effects of improving the air quantity and reducing the air pressure.

Description

fan system

technical field

The invention relates to an axial-flow fan, in particular to an axial-flow fan which can still run without power provided by a motor.

Background technique

Most general fans are used with a motor, because the motor can provide rotational kinetic energy. After the seasonal fan and the output power shaft of the motor are connected to each other, the rotational kinetic energy of the motor can drive the fan to rotate to achieve the cooling effect of the fan.

Today's operating systems such as personal computers (Personal Computer) etc., due to their faster and faster operation, the need to use fans to dissipate heat is increasing day by day. Among them, personal computers often need more than one place to use fans to dissipate heat. For example, the central processing unit (CPU), power supply (Power Supply Module), image processor (ImageDriver), and even the casing of a personal computer all need the operation of fans to dissipate heat. If the above-mentioned prior art is used However, it is necessary to use several fan motors separately to achieve the purpose, but in this way, not only the cost cannot be reduced, but also the power consumption will increase with the increase of the number of fan motors, and the noise problem cannot be improved. In today's environment where environmental protection awareness is rising, it does not conform to the trend of the times, and there is indeed a need for improvement.

Contents of the invention

The invention provides an axial-flow fan, which is operated by giving airflow through an air supply port, so that the axial-flow fan can be operated without a fan, so as to save energy.

The present invention provides an axial flow fan system, which includes: a first air supply device; a pipeline, one end of which is connected to the first air supply device for guiding the airflow generated by the first air supply device; and A first axial flow fan, which includes: a base; a rotor connected to the base through an axis; and at least one fan blade connected to the rotor, wherein the fan blade includes a driven part And a working part, the driven part is at a first air supply port relative to the pipeline, the airflow provided by the first air supply port flows through the driven part, so that the driven part rotates around the axis, and the belt is synchronously The action part rotates.

According to the above idea, the driven part is located close to the rotor, while the working part is located away from the rotor.

According to the above idea, the driven part can divide the airflow provided to the tuyere into two parts, and the air pressure difference generated by the two parts of the airflow can drive the driven part to rotate around the axis.

According to the above idea, the cross-sectional shape of the driven part is a wing shape.

According to the above idea, when the working part rotates around the axis, the working part can make the air pressure at the air outlet end of the first axial flow fan smaller than the air pressure at the air inlet end, so as to cause the airflow to flow.

According to the above idea, the shaft center is sleeved with a bearing, and then the base is axially connected with each other.

According to the above idea, the bearing is selected from the following group: a bushing bearing, a ball bearing, a magnetic bearing and the like.

According to the above idea, the first axial fan further includes a rib and a casing, and the rib connects the casing and the base.

According to the above idea, the pipeline further includes a second air supply port, and the pipeline can guide the airflow to the first air supply port and the second air supply port respectively; in addition, the axial flow fan system of the present invention further includes a In the second air supply device, the pipeline can guide the airflow to the first air supply port and the second air supply port respectively.

According to the above idea, the axial flow fan system of the present invention further includes a second air supply device, and the pipelines can respectively guide the airflow to the first air supply outlets.

According to the above idea, the first air supply device is selected from the following groups: axial flow fan motor, centrifugal fan motor and the like.

According to the above idea, the second air supply device is selected from the following groups: axial flow fan motor, centrifugal fan motor and the like.

Description of drawings

1 is a perspective view of an axial fan in an axial fan system of the present invention;

2 is a schematic cross-sectional view of the axial fan in the axial fan system of the present invention;

3A is a detailed cross-sectional schematic view of the driven part of the axial fan in the axial fan system of the present invention;

3B is a detailed cross-sectional schematic diagram of the work part of the axial fan in the axial fan system of the present invention;

4 is a schematic cross-sectional view of an axial flow fan system according to a first embodiment of the present invention;

5 is a schematic cross-sectional view of an axial flow fan system according to a second embodiment of the present invention;

FIG. 6 is a schematic cross-sectional view of an axial fan system according to a third embodiment of the present invention.

Detailed ways

In order to explain the technical characteristics of the first embodiment of the present invention in detail, please refer to FIG. 1, FIG. 2 and FIG. It is a three-dimensional schematic diagram of the axial flow fan in the axial flow fan system of the present invention, and FIG. 2 is a schematic cross-sectional view of the above-mentioned FIG. 1; please refer to FIG. 4 first, and according to the figure, the axial flow fan of the present invention The fan system includes: a first air supply device 31, a pipeline 21 and a first axial flow fan 1; wherein the first air supply device 31 can be an axial flow fan motor or a centrifugal fan as described in the prior art The fan motor can be implemented, basically as long as there is a device that can provide an air flow; and the pipeline 21 is a channel that provides an air flow, and one end of it is connected to the first air supply device 31 to guide the first air supply. The airflow produced by an air supply device 31; and the first axial fan 1 mainly includes a base 10, a rotor 12 and a plurality of fan blades 14, etc., please refer to shown in Figure 2; wherein, the base 10 A shell 16 is connected by at least one rib 15, and the shell 16 can regulate the air flow field, and the rotor 12 is pivotally connected to the base 10 through an axis 13, basically, the rotor 12 is sleeved on a bearing 100 , and then pivotally connected to the base 10 through the bearing 100. Preferably, the bearing 100 can be a bush bearing, a ball bearing or a magnetic bearing, so that the rotor 12 can be centered on the axis 13 The base 10 rotates, and the rotor 12 is connected with a plurality of fan blades 14, so when the rotor 12 rotates, it can simultaneously drive the plurality of fan blades 14 to rotate, so as to achieve the effect of heat dissipation.

Further explain the technical operation mode of the present invention as follows, because the airflow that the first air supply device 31 produces can flow to a first air supply port 210 place of pipeline 21 through pipeline 21, and the above-mentioned first axial flow type of the present invention Each fan blade 14 in the fan 1 includes a driven part 141 and a working part 142, wherein the first air supply port 210 is located relative to the driven part 141, and the driven part 141 is along the arc direction of the detail The cross-sectional view can be designed as shown in Figure 3A, so that when the airflow flows through the driven part 141 (the air flow direction is shown by the thin arrow in Figure 2), the driven part 141 can divide the airflow into two parts, because the driven part 141 The paths on both sides of the driven part 141 are different. Preferably, the cross-section of the driven part 141 can be an airfoil, which makes the flow velocity of the airflow flowing through the two parts of the driven part 141 different. "(Bernoulli's law) can cause the two parts to produce a relative air pressure difference, driving the driven part 141 to move in the direction shown by the arrow A in Figure 3A, and because the driven part 141 is connected to the rotor 12, and The rotor 12 extends outward radially from the center, so the overall fan blade 14 can rotate around the axis 13; as further explained, when the fan blade 14 rotates around the axis 13, the working part 142 is also synchronized Rotate, the detailed sectional view of the work part 142 along the arc is then shown in Figure 3B, the direction that the work part 142 rotates is the direction shown by the arrow B in Figure 3B, due to the motion of the work part 142, the work part 142 The cross-sectional shape of 142 is the same as the fan blade cross-section of the motor fan of the general prior art, so the air pressure at the air outlet 19 of the first axial flow fan 1 can be lower than the air pressure at the air outlet 18, so that the external air flow can be It is sucked in from the air inlet end 18, and is blown out from the air outlet end 19, and its airflow flow direction is shown in the hollow arrow among Fig. 2 and Fig. On the device (not shown in the figure), the purpose of dissipating heat from the electronic device can be achieved; preferably, the driven part 141 is located close to the rotor 12, and the active part 142 is located away from the rotor 12, but not It is not limited thereto, for example, disposing the driven part 141 at a place away from the rotor 12 , or disposing the driven part 141 at about the center of the fan blade 14 can be implemented accordingly.

Due to the structure of the above-mentioned overall axial flow fan system, it is only necessary to set the first axial flow fan 1 at the electronic device where heat dissipation is desired, and set the first air supply device 31 to other places. , it is only necessary to send the first air supply device 31 to the first axial flow fan 1 through the pipeline 21. In this way, the place where the first axial flow fan 1 is installed can achieve noise reduction compared with the prior art In addition, the design of the axial flow fan 1 in the axial flow fan system of the present invention, because the fan blade 14 and the rotor 12 are based on the driven part 141 of the fan blade 14 receiving the first air supply port 210 provided The air flow rotates, and then the air pressure difference is generated by the working part 142 of the fan blade 14 to make the external air flow flow. According to the principle of indestructible energy in physics, the axial flow fan 1 also meets the air volume of the air inlet end 18 and the air outlet end 19 The product of (Q) and wind pressure (P) needs equal factors, so when this embodiment is implemented, the airflow provided by the first air supply port 210 can generally provide an airflow with a higher wind pressure, and then blow the driven part 141 makes the fan blade 14 rotate, and after the conversion of the axial flow fan 1, since the axial flow fan 1 will attract the external airflow, the air flow of the air outlet 19 of the axial flow fan 1 will increase, and at the same time it will decrease The wind pressure of the airflow at the air outlet 19 can be applied to, for example, a relatively fragile heat source, so that the heat source will not be broken and damaged due to too high wind pressure during heat dissipation.

As in the technology described in the first embodiment above, since the structure of the present invention separates the first air supply device 31 from the first axial fan 1, the present invention can derive the following several implementation modes. Next, please Referring to Fig. 5 again, this figure shows a schematic cross-sectional view of the axial flow fan system of the second embodiment of the present invention. It can be clearly seen from the figure that a first Axial flow fan 1 and a second axial flow fan 2, preferably, the first axial flow fan 1 and the second axial flow fan 2 are axial flow fans with the same structure, so the second axial flow fan The fan 2 has exactly the same effect as the first axial fan 1, and the first air supply device 31 of this embodiment can also be an axial fan motor or a centrifugal fan motor as described in the prior art. As long as there is a device that can provide an air flow, it can be done; and the pipeline 22 of this embodiment has a first air supply port 221 and a second air supply port 222, wherein the fan blade in the first axial flow fan 1 The driven part 141 of 14 is located at the first air supply port 221, and the driven part 241 of the fan blade 24 in the second axial flow fan 2 is located at the second air supply port 222. The first air supply device 31 provides The air flow is guided through the pipeline 22 and flows to the first air supply port 221 and a second air supply port 222 respectively, which can be provided to the first axial flow fan 1 and the second axial flow fan 2 respectively. The first axial flow The operation principle and the structure of the axial flow fan 1 and the second axial flow fan 2 are the same as those described in the foregoing embodiments, and will not be repeated here. Therefore, the first axial flow fan 1 and the second axial flow fan 2 can be respectively It has the effect of cooling.

As described in the above embodiments, the axial flow fan system of the present invention can be applied to, for example, a personal computer, because there are many places in a personal computer that need heat dissipation, such as a central processing unit, a power supply, an image processor, and even a On the casing, etc., the first axial flow fan 1 and the second axial flow fan 2 (even more axial flow fans) can be respectively placed in the above-mentioned places where heat dissipation is required, and the first air supply The device 31 supplies the air flow it needs, which can directly save the cost required by multiple fan motors as in the prior art. At the same time, it can be cleverly arranged that the first air supply device 31 be located at other places, so that the personal computer It does not produce noise due to the operation of the motor, thereby improving the experience of using a personal computer.

In addition, the present invention provides yet another embodiment, as shown in FIG. 6 , which is a schematic cross-sectional view of an axial-flow fan system according to a third embodiment of the present invention. It can be seen from the figure that the axial-flow fan system of this embodiment A first air supply device 31 and a second air supply device 32 are provided in the fan system to generate air flow, and a pipeline 23 guides the air flow generated by the first air supply device 31 and the second air supply device 32 to A first air supply port 230 is used to supply a first axial flow fan 1, wherein the driven part 141 of the fan blade 14 in the first axial flow fan 1 is also located at the first air supply port 221, wherein the first An air supply device 31 and a second air supply device 32 can be either an axial flow fan motor or a centrifugal fan motor as described in the prior art, basically, as long as there is a device that can provide an air flow Therefore, they do not need to be exactly the same to operate; and the structure and operation of the first axial flow fan 1 are basically the same as those described above, and will not be repeated here.

In this embodiment, since two air supply devices are used to provide air flow together, for the designer of the axial flow fan system, a more margin is provided in the design space. Under the situation, select relatively small-sized air supply device for use, can reduce the noise of each air supply device like this, and also may reduce overall cost because of the selected air supply device, basically, the above-mentioned each embodiment of the present invention described As far as the technology is concerned, it can enable the designer to obtain the desired effect based on the factors considered, and at the same time achieve the purpose of heat dissipation.

The above descriptions are only preferred embodiments of the present invention, and the above embodiments are only used to illustrate rather than limit the claims of the present invention, and the scope of the present invention is defined by the appended claims. All equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims (15)

1. fan system, it comprises:

One first gives wind apparatus; And

One first fan, comprising:

One pedestal;

One rotor is coupling on this pedestal by an axle center; And

At least one flabellum, this flabellum is connected in this rotor, it is characterized in that,

This fan system also comprises a pipeline, the one end is connected to this and first gives wind apparatus, first give the air-flow that wind apparatus produced in order to guide this, this flabellum comprises a follower and a work done portion, this driven position is at one first air outlet place with respect to this pipeline, by this follower of airflow passes that this first air outlet is provided, making this follower is that rotate at the center with this axle center, and drives this work done portion rotation synchronously.

2. fan system as claimed in claim 1, wherein this follower is positioned near this rotor place, and this work done portion is positioned at away from this rotor place.

3. fan system as claimed in claim 1, wherein this follower can be with the air-flow separated into two parts that this air outlet provided, and the atmospheric pressure that this each two-part air-flow produced is poor, and can order about this follower is that rotate at the center with this axle center.

4. fan system as claimed in claim 3, wherein the section shape of this follower is one wing.

5. fan system as claimed in claim 1, wherein this work done portion is center when rotating with this axle center, this work done portion can make the air pressure at an outlet air end place of this first fan less than the air pressure at a wind inlet end place, makes and causes air current flow.

6. fan system as claimed in claim 1, wherein this axle center socket one bearing and then be coupling mutually with this pedestal.

7. fan system as claimed in claim 6, wherein this bearing is selected from following group: a bush-type bearing, a ball bearing and a magnetic type bearing.

8. fan system as claimed in claim 7, wherein this first fan also comprises a rib and a shell, this rib connects this shell and this pedestal.

9. fan system as claimed in claim 1, wherein this pipeline further comprises one second air outlet, this pipeline can be directed to air-flow respectively this first air outlet place and this second air outlet place.

10. fan system as claimed in claim 9, wherein this system also further comprises one second fan, is arranged at this second air outlet place.

11. fan system as claimed in claim 9, wherein this system comprises that further one second gives wind apparatus, and this pipeline can be directed to air-flow respectively this first air outlet place and this second air outlet place.

12. fan system as claimed in claim 1, wherein this system comprises that further one second gives wind apparatus, and this pipeline can be directed to air-flow respectively this first air outlet place.

13. fan system as claimed in claim 1, wherein this first is selected from following group to wind apparatus: axial flow fan motor and centrifugal fan motor.

14. as claim 11 or 12 described fan systems, wherein this second is selected from following group to wind apparatus: axial flow fan motor and centrifugal fan motor.

15. as claim 1 or 10 described fan systems, wherein this first fan or this second fan are respectively the axial flow fan of no motor.

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