CN101649842A - Fan assembly - Google Patents
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- CN101649842A CN101649842A CN200810210956A CN200810210956A CN101649842A CN 101649842 A CN101649842 A CN 101649842A CN 200810210956 A CN200810210956 A CN 200810210956A CN 200810210956 A CN200810210956 A CN 200810210956A CN 101649842 A CN101649842 A CN 101649842A
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Abstract
The invention discloses a fan assembly applied to an electronic device. The fan assembly comprises a housing, a fan, a throttle valve and a regulator. The housing is provided with an air outlet. The fan is arranged in the housing, and is applicable to providing air current, wherein, the air current produces air flow at the air outlet. The throttle valve is movably arranged in the housing, and located at the air outlet. The regulator is connected to the throttle valve for controlling the motion of the throttle valve to regulate opening size of the air outlet.
Description
Technical field
The invention relates to a kind of combination of fans, and particularly relevant for a kind of combination of fans that is applied to electronic equipment.
Background technique
Portable electronic devices develops towards miniaturization and multi-functional direction in recent years, and the function powerful portable electronic devices of healing possesses more chip at a high speed usually.Yet the heat energy that chip produced is more at a high speed also the more added the miniaturization of portable electronic devices, and these factors all make the heat dissipation potential of portable electronic devices become extremely important.
Fan is an assembly quite common in the electronic radiation technology, and it cooperates radiating fin that the high power assembly is dispelled the heat usually, with the temperature that keeps assembly in its operating temperature range.In addition, can make electronic equipment inside carry out convection action by the active flow that fan produced, and then effectively reduce the electronic equipment temperature inside with its external environment.
For focused airflow, the shell that allows fan install in it can form the air port, and the shape of exhaust outlet and size are all fixed usually.Therefore, if will provide high velocity air, only can improve the rotating speed of fan, but this air-flow that also causes fan and produced can't effectively utilize, thereby reduce the efficient of fan at a certain location (for example certain part of electrical assembly).
Summary of the invention
The object of the present invention is to provide a kind of combination of fans that is applied to an electronic equipment.
For achieving the above object, this combination of fans of the present invention comprises a shell, a fan, a throttle and a regulator, and wherein fan comprises a rotating shaft and can be a centrifugal fan or be an axial flow fan.Shell has one first exhaust outlet.Fan arrangement and is suitable for providing an air-flow in shell, wherein air-flow produces one first air quantity in first exhaust outlet.When the fan that uses during as centrifugal fan, air-flow is vertical mutually with the rotating shaft of centrifugal fan and when the fan that uses during as axial flow fan, the rotating shaft of air-flow and centrifugal fan is parallel to each other.Throttle is disposed in the shell movingly, and is positioned at first exhaust outlet.Regulator is connected to throttle, adjusts the size of first exhaust outlet in order to the motion of control throttle.
In one embodiment of this invention, shell also has one second exhaust outlet, and the air quantity of air-flow in the second exhaust outlet place is one second air quantity.Regulator control throttle is adjusted the size of first exhaust outlet and second exhaust outlet, thereby the corresponding size of adjusting first air quantity and second air quantity.
Specifically a bit say that combination of fans provided by the invention comprises again:
One shell has an exhaust outlet;
One centrifugal fan comprises one first rotating shaft and is disposed in this shell so that an air-flow to be provided, and wherein this air-flow produces an air quantity and this airflow direction perpendicular to this first rotating shaft in this exhaust outlet;
One throttle is disposed in this shell movingly, and is positioned at this exhaust outlet; And
One regulator is connected to this throttle, adjusts the size of this exhaust outlet in order to the motion of controlling this throttle.
Described combination of fans, wherein, this throttle is disposed in this shell rotationally, and is subjected to the driving force that this air-flow produces and rotates, and this throttle comprises one second rotating shaft and this throttle along this second rotating shaft rotation.
Described combination of fans, wherein, this regulator is a return unit, its have a restoring force and be connected to this shell and this throttle between, in order to resist this driving force with the position of controlling this throttle and the sectional area of adjusting this exhaust outlet, and this return unit be disposed at this second rotating shaft, this return unit be a torque spring, this throttle be a fan-shaped throat, when this driving force during greater than this restoring force, this throttle rotates and when this driving force during less than this restoring force, this throttle is towards the counter-rotation of this air-flow towards the direction of this air-flow.
Described combination of fans, wherein, this regulator is an actuator and is connected to this throttle, rotate the size of adjusting this exhaust outlet simultaneously to drive this throttle, to adjust the size of this air quantity, a control unit drives this throttle rotation to control this actuator, this actuator is that a motor and this throttle are a fan-shaped throat and this actuator connects.
Described combination of fans, wherein, comprise a sensor, be electrically connected to this control unit, so that this control unit sensing one test number, wherein this control unit comprises that a test number/control magnitude of voltage table of comparisons and this control unit hunt out its pairing control magnitude of voltage according to this test number in this test number/control magnitude of voltage table of comparisons, drive this throttle rotation to control this actuator.
Described combination of fans, wherein, this throttle is disposed in this shell rotationally and this regulator comprises one first magnet assembly and one second magnet assembly, and this first magnet assembly is connected to this throttle, this second magnet assembly is disposed at this shell and can magnetic controls the position of this first magnet assembly,, this throttle adjusts the size of this exhaust outlet so that moving, and to adjust the size of this air quantity.
Described combination of fans, wherein, comprise a control unit, be electrically connected to this second magnet assembly and this control unit and this second magnet assembly is electrically connected to a control circuit, drive this throttle and move to control this second magnet assembly, and this control unit electrically comprises a test number/control magnitude of voltage table of comparisons and be connected to a sensor so that this control unit sensing one test number and hunt out its pairing control magnitude of voltage in this test number/control magnitude of voltage table of comparisons according to this test number drives this throttle and moves to control this second magnet assembly.
Described combination of fans, wherein, this regulator comprises that a motor, is connected in the gear of this motor, reaches a tooth bar, and this tooth bar is solidly connected to this throttle and is meshed with this gear,, this throttle adjusts the size of this exhaust outlet so that moving, and to adjust the size of this air quantity.
Combination of fans of the present invention also comprises:
One shell has one first exhaust outlet and one second exhaust outlet;
One fan is disposed in this shell, and is suitable for providing an air-flow, and wherein this air-flow produces one first air quantity and produces one second air quantity in this second exhaust outlet in this first exhaust outlet;
One throttle is disposed in this shell movingly, and between this first exhaust outlet and this second exhaust outlet; And
One regulator is connected to this throttle, adjusts the size of this first exhaust outlet and this second exhaust outlet in order to the motion of controlling this throttle.
Described combination of fans, wherein, this throttle is disposed in this shell rotationally, and is subjected to the driving force that this air-flow produces and rotates, and this throttle comprises a rotating shaft and this throttle along this rotating shaft rotation.
Described combination of fans, wherein, this regulator is a return unit, its have a restoring force and be connected to this shell and this throttle between, in order to resisting this driving force with the position of controlling this throttle and the sectional area of adjusting this first exhaust outlet and this second exhaust outlet, and this return unit is disposed at this rotating shaft, this return unit is that a torque spring and this throttle are a fan-shaped throat.
Described combination of fans, wherein, when the sectional area of this first exhaust outlet during less than the sectional area of this second exhaust outlet, this first air quantity is less than this second air quantity and when the sectional area of this first exhaust outlet during greater than the sectional area of this second exhaust outlet, this first air quantity is greater than this second air quantity.
Described combination of fans, wherein, when this driving force during greater than this restoring force, throttle rotates towards the direction of this air-flow, and when this driving force during less than this restoring force, throttle is towards the counter-rotation of this air-flow.
Described combination of fans, wherein, this regulator is an actuator and is connected to this throttle, rotate the size of adjusting this first exhaust outlet and this second exhaust outlet simultaneously to drive this throttle, adjusting the size of this first air quantity and this second air quantity, and this throttle is disposed in this shell rotationally.
Described combination of fans wherein, comprises a control unit, is electrically connected to this actuator, drives this throttle rotation to control this actuator, and wherein this actuator comprises that a motor and this throttle are a fan-shaped throat.
Described combination of fans, wherein, comprise a first sensor and one second sensor, be electrically connected to this control unit, so that this control unit sensing one first test number and one second test number, wherein this control unit comprises that test number comparative result/control magnitude of voltage table of comparisons and this control unit hunt out its pairing control magnitude of voltage according to the comparative result of this first test number and this second test number in this test number comparative result/control magnitude of voltage table of comparisons, drives this throttle and rotates to control this actuator.
Described combination of fans, wherein, this throttle is disposed in this shell rotationally and this regulator comprises one first magnet assembly and one second magnet assembly, and this first magnet assembly is connected to this throttle, this second magnet assembly is disposed at this shell and can magnetic controls the position of this first magnet assembly,, this throttle adjusts the size of this first exhaust outlet and this second exhaust outlet so that moving, and to adjust the size of this first air quantity and this second air quantity.
Described combination of fans wherein, comprises a control unit, is electrically connected to this second magnet assembly, drives this throttle and moves to control this second magnet assembly, and wherein this control unit and this second magnet assembly are electrically connected to a control circuit.
Described combination of fans, wherein, comprise a first sensor and second sensor, be electrically connected to this control unit so that this control unit sensing one first test number and one second test number, wherein this control unit comprises test number comparative result/control magnitude of voltage table of comparisons, and this control unit hunts out its pairing control magnitude of voltage according to the comparative result of this first test number and this second test number in this test number comparative result/control magnitude of voltage table of comparisons, drives this throttle and moves to control this second magnet assembly.
Described combination of fans, wherein, this regulator comprises that a motor, is connected in the gear of this motor, reaches a tooth bar, this tooth bar is solidly connected to this throttle and is meshed with this gear,, this throttle adjusts the size of this first exhaust outlet and this second exhaust outlet so that moving, and to adjust the size of this first air quantity and this second air quantity.
Based on above-mentioned, combination of fans of the present invention has a throttle and is disposed at exhaust outlet, and controls the motion of throttle to adjust the size in air port by regulator.When the rotating speed of fan changed, the intensity that throttle can corresponding air-flow was dispersed air-flow or is concentrated.In addition, when rotating speed one timing of fan, throttle can be adjusted the air quantity of exhaust outlet.Therefore, the user is more flexible for the control of air-flow, and then improves the efficient of combination of fans.
Description of drawings
Figure 1A to Fig. 1 C is the schematic representation of combination of fans in one embodiment of the invention.
Fig. 2 A to Fig. 2 C is the schematic representation of combination of fans in another embodiment of the present invention.
Fig. 3 A to Fig. 3 C is the schematic representation of combination of fans in one embodiment of the invention.
Fig. 4 is the Block Diagram of combination of fans among Fig. 3 A to Fig. 3 C.
Fig. 5 A to Fig. 5 C is the schematic representation of combination of fans in another embodiment of the present invention.
Fig. 6 is the Block Diagram of combination of fans among Fig. 5 A to Fig. 5 C.
Fig. 7 is the exploded view of combination of fans in one embodiment of the invention.
Fig. 8 A to Fig. 8 C is the combination schematic representation of combination of fans among Fig. 7.
Fig. 9 is the Block Diagram of combination of fans among Fig. 7.
Figure 10 is the Block Diagram of combination of fans in another embodiment of the present invention.
Figure 11 is the exploded view of combination of fans in further embodiment of this invention.
Figure 12 A to Figure 12 C is the schematic representation of combination of fans among Figure 11.
Figure 13 is the Block Diagram of combination of fans among Figure 12 A to Figure 12 C.
Figure 14 A is the schematic representation of combination of fans in another embodiment of the present invention.
Figure 14 B is the schematic representation of combination of fans in further embodiment of this invention.
Primary clustering symbol description in the accompanying drawing
50: chip
50a: first chip
50b: second chip
60: air quantity
60a: first air quantity
60b: second air quantity
100,100a: combination of fans
110,110a: shell
112: exhaust outlet
112a: first exhaust outlet
112b: second exhaust outlet
120: fan
122: rotating shaft
130: throttle
132: rotating shaft
140: return unit
142: the first ends
144: the second ends
200,200a: combination of fans
210,210a: shell
212: exhaust outlet
212a: first exhaust outlet
212b: second exhaust outlet
220: fan
230: throttle
240: actuator
250: control unit
252: the test number/control magnitude of voltage table of comparisons
260: sensor
260a: first sensor
260b: second sensor
300,300a, 300b, 300 ', 300 ": combination of fans
310,310b: shell
312: exhaust outlet
312a: first exhaust outlet
312b: second exhaust outlet
314: loam cake
316: lower cover
316a: track
320: fan
330: throttle
340a: first magnet assembly
340b: second magnet assembly
342b: first electromagnet
344b: second electromagnet
346b: the 3rd electromagnet
350: control unit
352: the test number/control magnitude of voltage table of comparisons
360: sensor
360a: first sensor
360b: second sensor
370: control circuit
380: link
392A, 392B: motor
394A, 394B: gear
396A, 396B: tooth bar
Embodiment
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and conjunction with figs. is described in detail below.
Figure 1A to Fig. 1 C is the schematic representation of combination of fans in one embodiment of the invention.What need explanation earlier is, clear for making accompanying drawing, the shell of display unit only in the following drawings, and those skilled in the art are when implementing on demand voluntarily according to content described in the invention.Please earlier with reference to Fig. 1, combination of fans 100 comprises a shell 110, a fan 120, a throttle 130 and a return unit 140, and wherein fan 120 comprises a rotating shaft 122 and can be a centrifugal fan or be an axial flow fan.In the present embodiment, the fan 120 that is adopted is the member that a centrifugal fan and return unit 140 can be considered a regulator.Shell 110 has an exhaust outlet 112, and fan 120 is disposed in the shell 110.Specifically, fan 120 can produce an air-flow, and air-flow then leaves shell 110 by exhaust outlet 112.Air-flow produces an air quantity 60 at exhaust outlet 112.When the fan 120 that uses during as centrifugal fan, the direction of air-flow is vertical mutually with the rotating shaft of centrifugal fan 122, and when the fan 120 that uses during as axial flow fan, the direction of air-flow and the rotating shaft of axial flow fan 122 are parallel to each other.
Hold above-mentioned, throttle 130 is disposed on the shell 110 rotationally and is positioned at exhaust outlet 112, and wherein throttle 130 can produce a driving force and this driving force with respect to air-flow and can drive throttle 130 rotations to change the position of throttle 130 on shell 110.Return unit 140 has a restoring force and connects as between shell 110 and the throttle 130, in order to drive throttle 130 and to resist driving force that air-flow produces with the position of control throttle 130 and adjust the sectional area in air port 112 and the air quantity 60 of exhaust outlet.When driving force that air-flow produced during greater than the restoring force of return unit 140, throttle 130 will be according to the direction rotation of air-flow.When the restoring force of return unit 140 during greater than the driving force of air-flow, throttle 130 will be according to the opposite spin of air-flow.Specifically, in the present embodiment, throttle 130 has a rotating shaft 132, and throttle 130 is along rotating shaft 132 rotation, and return unit 140 is disposed at rotating shaft 132 and has a restoring force, and wherein return unit 140 can be a spring, for example is torque spring.When return unit 140 was torque spring, restoring force is the torsion of torque spring for this reason then.Return unit 140 can have one first end 142 and one second end, 144, the first ends 142 can be fixed on the throttle 130, and second end 144 then can be fixed on the shell 110.
The rotating speed of the rectification campaign that the user is adjustable fan 120 to be changing the intensity of air-flow, and according to the difference of current rate, return unit 140 can be adjusted to throttle 130 different angles; And according to the difference of rotation angle, throttle 130 can stop the air quantity 60 of exhaust outlet 112 to adjust the air port of different proportion.For example, current rate reduces simultaneously when rotation speed of the fan reduces, the driving force that the restoring force of return unit 140 can be produced throttle 130 greater than air-flow, and make throttle 130 turn to the position of Figure 1B.So, the ratio that stopped by throttle 130 of exhaust outlet 112 increases and dwindles the sectional area of exhaust outlet and and then reduce the air quantity 60 of exhaust outlet.Though this moment, the exhaust outlet air quantity reduced, and made air-flow comparatively concentrated at the exhaust outlet place.And current rate improves simultaneously when rotation speed of the fan improves, and air-flow can be greater than the restoring force of return unit 140 to the driving force of throttle 130, and makes throttle 130 by the rotated position of Figure 1A position to Fig. 1 C.So, the ratio that exhaust outlet 112 is stopped by throttle 130 reduces and increases the sectional area of exhaust outlet and and then increase the air quantity 60 of exhaust outlet 112.
In the present embodiment, combination of fans 100 can be to be applied to a chip 50 heat radiations, and chip 50 is disposed at exhaust outlet 112, and the air-flow that fan 120 is produced is blown out and the chip 50 that leads by exhaust outlet 112.When lower and rotation speed of the fan reduces when the required heat dissipation potential of chip 50, the intensity of air-flow reduces, and throttle 130 turns to that the position of Figure 1B makes that exhaust outlet is 112 less, air quantity 60 is less and air-flow is more concentrated, can be in order to the specific part heat radiation at chip 50; And when the required heat dissipation potential of chip 50 was higher, the intensity of air-flow improved, and throttle 130 is when turning to the position of Fig. 1 C, and exhaust outlet 112 is big, air quantity 60 is bigger, can provide preferable heat dissipation potential to chip 50 integral body.So, in the air quantity 60 of user with the intensity of the rotating speed of fan 120 control air-flow and exhaust outlet, throttle 130 also can be adjusted dispersing of the air quantity 60 of exhaust outlet and air-flow or concentrate, and makes the user more flexible to the control of air-flow, and then improves the utilization efficiency of fan 120.
Though it should be noted that having an exhaust outlet with shell in the above-described embodiments is example, the present invention is not as limit, and those skilled in the art is when can for example disposing a plurality of exhaust outlets at shell on demand at the exhaust outlet of shell configuration suitable quantity.
Fig. 2 A to Fig. 2 C is the schematic representation of combination of fans in another embodiment of the present invention.Please refer to Fig. 2 A to Fig. 2 C, what need explanation earlier is that the embodiment's part among present embodiment and Figure 1A to Fig. 1 C is similar, and in the embodiment of present embodiment and Figure 1A to Fig. 1 C, same or analogous assembly label is represented same or analogous assembly.Below will illustrate that in detail something in common just repeats no more at two embodiment's differences.
In the present embodiment, the shell 110a of combination of fans 100a has one first exhaust outlet 112a and one second exhaust outlet 112b, and throttle 130 is disposed at the jointing place of the first exhaust outlet 112a and the second exhaust outlet 112b.Fan 120 can produce an air-flow, is blown out by the first exhaust outlet 112a and the second exhaust outlet 112b respectively.Air quantity in the first exhaust outlet place is that one first air quantity 60a, the air quantity of the second air-flow 60b in the second exhaust outlet place are one second air quantity.The combination of fans 100a of present embodiment can be applicable to the heat radiation of two thermals source, for example, the user can place the first exhaust outlet 112a with one first chip 50a and with first air quantity 60a heat radiation, and one second chip 50b placed the second exhaust outlet 112b and dispels the heat with the second air quantity 60b.
Hold above-mentionedly, can adjust the size of the first exhaust outlet 112a and the second exhaust outlet 112b when throttle 130 rotates.Specifically, when throttle 130 by the rotated position of Fig. 2 A during to the position of Fig. 2 B since the reduced cross-sectional area of first exhaust outlet simultaneously the sectional area of second exhaust outlet increase and cause first air quantity less than second air quantity; When throttle 130 turned to position as Fig. 2 C, then the reduced cross-sectional area of second exhaust outlet caused second air quantity greater than first air quantity because the sectional area of first exhaust outlet increases simultaneously.
Fig. 3 A to Fig. 3 C is the schematic representation of combination of fans in one embodiment of the invention.What need explanation earlier is, clear for making accompanying drawing, the shell of display unit only in the following drawings, and those skilled in the art are when implementing on demand voluntarily according to content described in the invention.Please refer to Fig. 3 A to Fig. 3 C, combination of fans 200 comprises a shell 210, a fan 220, a throttle 230 and an actuator 240.In the present embodiment, actuator 240 is considered as the member of a regulator.Shell 210 has an exhaust outlet 212, and fan 220 is disposed in the shell 210.Specifically, fan 220 can produce an air-flow, and air-flow then leaves shell 210 by exhaust outlet 212.
Hold above-mentionedly, throttle 230 is disposed on the shell 210 rotationally, and is positioned at exhaust outlet 212, and wherein throttle 230 can be the throat in the combination of fans.Actuator 240 is connected to throttle 230, and drives throttle 230 to adjust the size in air port 212.Specifically, actuator 240 can comprise motor, and actuator 240 can drive throttle 230 when rotating and rotates.According to the difference of rotation angle, throttle 230 can stop that exhaust outlet 212 width of different proportion are to adjust the air quantity in air port 212.For example, fan 220 is when rotating with fixed rotating speed, air-flow produces an air quantity at exhaust outlet 212, and by the rotated position of Fig. 3 A during to the position of Fig. 3 B, the ratio that exhaust outlet 212 is stopped by throttle 230 increases and reduces the air quantity of exhaust outlet 212 at throttle 230; And when throttle 230 turned to the position of Fig. 3 C, exhaust outlet 212 was reduced by the ratio that throttle 230 stops, and increased the air quantity of exhaust outlet 212.
In the present embodiment, combination of fans 200 can be to be applied to a chip 50 heat radiations, and chip 50 is disposed at exhaust outlet 212, and the air-flow that fan 220 is produced is blown out and the chip 50 that leads by exhaust outlet 212.When chip 50 need be than higher heat dissipation potential, the throttle 230 of combination of fans 200 can be by the rotated position of Fig. 3 A to the position of Fig. 3 C with the sectional area that increases exhaust outlet 212 and increase the air quantity of exhaust outlet simultaneously so that chip 50 is carried out preferable heat radiation.So, the user is except controlling the air quantity of exhaust outlet with the rotating speed of fan 220, more can under the prerequisite that does not change rotation speed of the fan, change the air quantity of exhaust outlet, make the user more flexible, and then improve the utilization efficiency of fan 220 control of air-flow by throttle 230.
Fig. 4 is the Block Diagram of combination of fans among Fig. 3 A to Fig. 3 C.Please refer to Fig. 4, combination of fans 200 also can have a control unit 250.Control unit 250 for example is an electronic controller, and it can be integrated in other electrical assembly, and for example South Bridge chip of personal computer etc., and control unit 250 is electrically connected to actuator 240, rotates with control actuator 240.In addition, combination of fans 200 more can comprise a sensor 260.In the present embodiment, sensor is a temperature transducer but does not limit the scope of the invention.Sensor 260 for example is to be disposed on the chip 50, and sensor 260 is electrically connected to control unit 250.But the temperature of sensor 260 test chips 50, and test number is sent to control unit 250, but control unit 250 then the test number that provided of reference sensor 260 control actuator 240, to determine the size in air port 212.Control unit 250 for example can a built-in test number/control magnitude of voltage table of comparisons 252 or a test number comparative result/control magnitude of voltage table of comparisons, control unit 250 then is provided in test number/control magnitude of voltage table of comparisons 252 or test number comparative result/control magnitude of voltage table of comparisons by the test number that provided by sensor 260 or the comparative result of test number, and obtain a pairing control magnitude of voltage with control actuator 240, drive throttle 230 and turn to a corresponding rotation angle.
Though above-mentioned is the example explanation with sensor 260 sensing temperatures, but sensor 260 also can be temperature transducer, current sensor, voltage transducer etc. one of them, or has the sensor of the combination of multinomial above-mentioned functions, judge in the control unit 250 in order to sensing value is passed to whether combination of fans 200 need provide bigger heat dissipation potential, wherein voltage transducer or current sensor are for being used for sensing combination of fans 200 employed voltage/currents or sensor chip 50 employed voltage/currents.
Though it should be noted that having an exhaust outlet with shell in the above-described embodiments is example, the present invention is not as limit, and those skilled in the art is when can for example disposing a plurality of exhaust outlets at shell on demand at the exhaust outlet of shell configuration suitable quantity.
Fig. 5 A to Fig. 5 C is the schematic representation of combination of fans in another embodiment of the present invention.Please refer to Fig. 5 A to Fig. 5 C, what need explanation earlier is that the embodiment's part among present embodiment and Fig. 3 A to Fig. 3 C is similar, and in the embodiment of present embodiment and Fig. 3 A to Fig. 3 C, same or analogous assembly label is represented same or analogous assembly.Below will illustrate that in detail something in common just repeats no more at two embodiment's differences.
In the present embodiment, the shell 210a of combination of fans 200a has one first exhaust outlet 212a and one second exhaust outlet 212b, and throttle 230 is disposed at the jointing place of the first exhaust outlet 212a and the second exhaust outlet 212b.The combination of fans 200a of present embodiment can be applicable to the heat radiation of two thermals source, and for example, the user can place the first exhaust outlet 212a with one first chip 50a, and one second chip 50b is placed the second exhaust outlet 212b.
Hold above-mentionedly, can adjust the size of the first exhaust outlet 212a and the second exhaust outlet 212b when throttle 230 rotates.Specifically, air-flow is respectively first air quantity and second air quantity at the air quantity of the first exhaust outlet 212a place and the generation of the second exhaust outlet 212b place.When the needed heat dissipation potential of the first chip 50a is low than the second chip 50b, throttle 230 is by the rotated position of Fig. 5 A position to Fig. 5 B, this moment can be under the situation that does not change rotation speed of the fan by the air-out sectional area that changes the first exhaust outlet 212a and the second exhaust outlet 212b so that first air quantity of the first exhaust outlet 212a becomes less, and second air quantity of the second exhaust outlet 212b is become greatly to meet the radiating requirements of the first chip 50a and the second chip 50b.When the needed heat dissipation potential of the first chip 50a was high than the second chip 50b, throttle 230 turned to the position as Fig. 5 C.Can make second air quantity of the second exhaust outlet 212b less to meet the radiating requirements of the first chip 50a and the second chip 50b by the air-out sectional area that changes the first exhaust outlet 212a and the second exhaust outlet 212b so that first air quantity of the first exhaust outlet 212a is big under the situation that does not change rotation speed of the fan this moment.
Fig. 6 is the Block Diagram of combination of fans among Fig. 5 A to Fig. 5 C.Please refer to Fig. 6, combination of fans 200a also can have sensor.For instance, combination of fans 200a also can comprise a first sensor 260a and one second sensor 260b.First sensor 260a is disposed on the first chip 50a, and the second sensor 260b is disposed on the second chip 50b, and first sensor 260a and the second sensor 260b are electrically connected to control unit 250.First sensor 260a can test the temperature of the first chip 50a, and the temperature that the second sensor 260b can test the second chip 50b, and these test number are sent to control unit 250, control unit 250 then can with reference to and relatively these test number of being provided of first sensor 260a and the second sensor 260b judge the first chip 50a and the needed heat dissipation potential of the second chip 50b and control actuator 240 by test number comparative result/control magnitude of voltage table of comparisons, to determine the size of the first exhaust outlet 212a and the second exhaust outlet 212b.
The mode of execution of the first sensor 260a and the second sensor 260b can be with reference to the sensor 260, seldom does at this and gives unnecessary details.
Fig. 7 is the exploded view of combination of fans in one embodiment of the invention, and Fig. 8 A to Fig. 8 C is the combination schematic representation of combination of fans among Fig. 7.Explanation is earlier, clear for making accompanying drawing, only shows the lower cover of shell among Fig. 8 A to Fig. 8 C.Please earlier with reference to Fig. 7 and Fig. 8 A, combination of fans 300 comprises a shell 310, a fan 320, a throttle 330, one first magnet assembly 340a and one second magnet assembly 340b.In the present embodiment, the first magnet assembly 340a and the second magnet assembly 340b are considered as the member of a regulator.Shell 310 comprises a loam cake 314 and a lower cover 316, form a containing space between loam cake 314 and the lower cover 316 and can hold fan 320, and shell 310 has an exhaust outlet 312, and fan 320 is disposed in the shell 310, wherein fan 320 can produce an air-flow, and air-flow then leaves shell 310 by exhaust outlet 312.
Hold above-mentionedly, throttle 330 is disposed on the shell 310 movably, and is positioned at exhaust outlet 312.The first magnet assembly 340a is connected to throttle 330, and on the second magnet assembly 340b configuration shell 300 and the second magnet assembly 340b control the position of the first magnet assembly 340a in order to magnetic, adjust the size in air port 312 in order to moving of control throttle 330.
Particularly, the material of the first magnet assembly 340a can be ferromagnetic metal or iron oxygen magnetic metal, for example is iron block; The second magnet assembly 340b then can comprise electromagnet.Along with the difference of product specification demand, the second magnet assembly 340b can be single electromagnet or a plurality of electromagnet.When the second magnet assembly 340b is single electromagnet, can change the position of controlling first magnetic by the magnetic of electromagnet.When the polarity of the second magnet assembly 340b was identical with the first magnet assembly 340a, second magnet assembly will produce repulsion and drive throttle 330 first magnet assembly; When the polarity of the second magnet assembly 340b was opposite with the first magnet assembly 340a, second magnet assembly will produce suction and drive throttle 330 first magnet assembly, and then adjusts the size in air port 312.
In the present embodiment, the second magnet assembly 340b can be made up of one first electromagnet 342b, one second electromagnet 344b and one the 3rd electromagnet 346b, but does not limit the scope of the invention.When control first electromagnet 342b energising produced attraction force magnetic, the first magnet assembly 340a moved to the first electromagnet 342b.In like manner, can also the first magnet assembly 340a be moved the method to the second electromagnet 344b or the 3rd electromagnet 346b.It should be noted that, though contain one first electromagnet 342b, the second electromagnet 344b and the 3rd electromagnet example that 346b is consisted of with the second magnet assembly 340b in the present embodiment, but the present invention is not as limit, those skilled in the art for example only dispose one first electromagnet and one second electromagnet can dispose the electromagnet of varying number on demand.
In addition, combination of fans 300 can also have a connection piece 380, is connected between the first magnet assembly 340a and the throttle 330; And can have a track 316a on the lower cover 316 of shell 310, and link 380, the first magnet assembly 340a and throttle 330 be disposed on the track 316a, and so, the first magnet assembly 340a can drive throttle 330 and move along track 316a.
Please refer to Fig. 8 A to Fig. 8 C, according to the difference of position, throttle 330 can stop that the exhaust outlet 312 of different proportion is to adjust the size of air quantity.For example, fan 320 is when rotating with fixed rotating speed, air-flow produces an air quantity at exhaust outlet 312, when the first magnet assembly 340a moves to the first electromagnet 342b, and throttle 330 is when moving to the position of Fig. 8 B by the position of Fig. 8 A, the ratio that exhaust outlet 312 is stopped by throttle 330 increases, and so, will reduce the air quantity of exhaust outlet 312 under the constant situation of fan 320 rotating speeds; And when throttle 330 moved to the position of Fig. 8 C, the ratio that exhaust outlet 312 is stopped by throttle 330 reduced, and will improve the air quantity of exhaust outlet 312 under the constant situation of fan 320 rotating speeds.
In the present embodiment, combination of fans 300 can be to be applied to a chip 50 heat radiation, and chip 50 is disposed at exhaust outlet 312, and the air-flow that fan 320 produced and blowing out and the chip 50 that leads by exhaust outlet 312.When the heat dissipation potential of chip 50 needs was hanged down, throttle 330 moved to the position of Fig. 8 B to dwindle exhaust outlet 312.This moment can be in order to the specific part heat radiation at chip 50 under the constant situation of rotation speed of the fan; When the heat dissipation potential of chip 50 needs was higher, throttle 330 moved to the position of Fig. 8 C to enlarge exhaust outlet 312.Make, the air quantity that will improve exhaust outlet under the constant situation of this tangible rotation speed of the fan is to provide chip 50 preferable heat dissipation potential.So, the user controls the air quantity of exhaust outlet except the rotating speed with fan 320, more can utilize the air quantity of throttle 330 exhaust outlets, makes the user more flexible to the control of air-flow, and then improves the utilization efficiency of fan 320.
Fig. 9 is the Block Diagram of combination of fans among Fig. 7.Please refer to Fig. 9, combination of fans 300 also can have a control unit 350.Control unit 350 for example is an electronic controller, it can be integrated in other electrical assembly, South Bridge chip of personal computer etc. for example, and control unit 350 is electrically connected to the second magnet assembly 340b, to control the second magnet assembly 340b the first magnet assembly 340a is moved, and drive throttle 330.In addition, combination of fans 300 also can comprise a sensor 360.Sensor 360 for example is to be disposed on the chip 50, and sensor 360 is electrically connected to control unit 350.But the temperature of sensor 360 test chips 50, and test number is sent to control unit 350, but control unit 350 then the test number that provided of reference sensor 360 control the second magnet assembly 340b, to determine the size in air port 312.Hold above-mentioned, control unit 350 for example can a built-in test number/control magnitude of voltage table of comparisons 352 or test number comparative result/control magnitude of voltage table of comparisons, control unit 350 then is provided in test number/control magnitude of voltage table of comparisons 352 or test number comparative result/control magnitude of voltage table of comparisons by the test number that is provided by sensor 360, and obtain a pairing control magnitude of voltage to control the second magnet assembly 340b, drive throttle 330 and turn to a corresponding position.
Though above-mentioned is the example explanation with sensor 360 sensing temperatures, but sensor 360 also can be temperature transducer, current sensor, voltage transducer etc. one of them, or has the sensor of the combination of multinomial above-mentioned functions, judge in the control unit 350 in order to sensing value is passed to whether combination of fans 300 need provide bigger heat dissipation potential, wherein voltage transducer or current sensor are for being used for sensing combination of fans 300 employed voltage/currents or sensor chip 50 employed voltage/currents.
Figure 10 is the Block Diagram of combination of fans in another embodiment of the present invention.Please refer to Figure 10, it is following that combination of fans 300a and combination of fans 300 are compared, and also has a control circuit 370, is electrically connected between the control unit 350 and the second magnet assembly 340b.Control circuit 370 can receive the signal from control unit 350, and provides an external power supply to control the second magnet assembly 340b.
Though it should be noted that having an exhaust outlet with shell in the above-described embodiments is example, the present invention is not as limit, and those skilled in the art are when can for example disposing a plurality of exhaust outlets at shell on demand at the exhaust outlet of shell configuration suitable quantity.
Figure 11 is the exploded view of combination of fans in further embodiment of this invention, and Figure 12 A to Figure 12 C is the schematic representation of combination of fans among Figure 11.Please refer to Figure 11 and Figure 12 A to Figure 12 C, what need explanation earlier is that the embodiment's part among present embodiment and Fig. 8 A to Fig. 8 C is similar, and in the embodiment of present embodiment and Fig. 8 A to Fig. 8 C, same or analogous assembly label is represented same or analogous assembly.Below will illustrate that in detail something in common just repeats no more at two embodiment's differences.
In the present embodiment, the shell 310b of combination of fans 300b has one first exhaust outlet 312a and one second exhaust outlet 312b, and throttle 330 is disposed at the jointing place of the first exhaust outlet 312a and the second exhaust outlet 312b.The combination of fans 300a of present embodiment can be applicable to the heat radiation of two thermals source, and for example, the user can place the first exhaust outlet 312a with one first chip 50a, and one second chip 50b is placed the second exhaust outlet 312b.
Hold above-mentionedly, can adjust the size of the first exhaust outlet 312a and the second exhaust outlet 312b when throttle 330 moves.Specifically, air-flow is respectively first air quantity and second air quantity at the air quantity of the first exhaust outlet 312a place and the generation of the second exhaust outlet 312b place.When the heat dissipation potential that needs as the first chip 50a is low than the second chip 50b, when throttle 330 moves to the position of Figure 12 B by the position of Figure 12 A, can under the situation that does not change rotation speed of the fan, make first air quantity of the first exhaust outlet 312a become less and make second air quantity of the second exhaust outlet 312b become big and make the second chip 50b obtain higher heat dissipation potential. When the heat dissipation potential that needs as the first chip 50a is high than the second chip 50b, when throttle 330 turns to as the position of Figure 12 C, then can under the situation that does not change rotation speed of the fan, make first air quantity of the first exhaust outlet 312a big and make second air quantity of the second exhaust outlet 312b less and make the first chip 50a obtain higher heat dissipation potential.
Figure 13 is the Block Diagram of combination of fans among Figure 12 A to Figure 12 C.Please refer to Figure 13, combination of fans 300b also can have sensor.For instance, combination of fans 300b also can comprise a first sensor 360a and one second sensor 360b.First sensor 360a is disposed on the first chip 50a, and the second sensor 360b is disposed on the second chip 50b, and first sensor 360a and the second sensor 360b are electrically connected to control unit 350.First sensor 360a can test the temperature of the first chip 50a, and the temperature that the second sensor 360b can test the second chip 50b, and these test number are sent to control unit 350, control unit 350 then can with reference to and relatively these test number of being provided of first sensor 360a and the second sensor 360b judge the first chip 50a and the needed heat dissipation potential of the second chip 50b and control the second magnet assembly 340b by test number comparative result/control magnitude of voltage table of comparisons, to determine the size of the first exhaust outlet 312a and the second exhaust outlet 312b.In addition, combination of fans 300b can have a control circuit (not shown) as combination of fans 300a, and the mode of execution of control circuit can be with reference to the combination of fans 300a of Figure 10; In addition, the mode of execution of the first sensor 360a and the second sensor 360b can be with reference to the sensor 360, seldom does at this and gives unnecessary details.
Figure 14 A is the schematic representation of combination of fans in another embodiment of the present invention.Please refer to Figure 14, embodiment's part of present embodiment and Fig. 8 A is similar, and same or analogous assembly label is represented same or analogous assembly.Below will illustrate in detail, and something in common just repeats no more at two embodiment's differences.In the present embodiment, combination of fans 300A comprises a motor 392A, a gear 394A and a tooth bar 396A.In the present embodiment, motor 392A, gear 394A and tooth bar 396B are considered as the member of a regulator.Gear 394A is connected to motor 392A, and is suitable for being subjected to the driving of motor 392A and rotates.Tooth bar 396A is solidly connected to throttle 330, and is meshed with gear 394A, adjusts the size of the first exhaust outlet 112a with moving of control throttle 330, and in order to adjust the size of first air quantity.
Figure 14 B is the schematic representation of combination of fans in further embodiment of this invention.Please refer to Figure 14 B, embodiment's part of present embodiment and Figure 12 is similar, and same or analogous assembly label is represented same or analogous assembly.Below will illustrate in detail, and something in common just repeats no more at two embodiment's differences.In the present embodiment, combination of fans 300B comprises a motor 392B, a gear 394B and a tooth bar 396B.In the present embodiment, motor 392B, gear 394B and tooth bar 396B are considered as a regulator.Gear 394B is connected to motor 392B, and is suitable for being subjected to the driving of motor 392B and rotates.Tooth bar 396B is solidly connected to throttle 330, and is meshed with gear 394B, adjusts the size of the first exhaust outlet 112a and the second exhaust outlet 112b with moving of control throttle 330, and in order to adjust the size of first air quantity and second air quantity.
In sum, combination of fans of the present invention has a throttle and is disposed at exhaust outlet, and controls the motion of throttle to adjust the size in air port by regulator.When the rotating speed of fan changed, the intensity that throttle can corresponding air-flow was dispersed air-flow or is concentrated.In addition, when rotating speed one timing of fan, throttle can be adjusted the air quantity of exhaust outlet.Therefore, the user is more flexible for the control of air-flow, and then improves the efficient of combination of fans.
In addition, in certain embodiments, shell more can have a plurality of exhaust outlets, and throttle can be adjusted the size of these exhaust outlets, and can adjust the air quantity of these exhaust outlets simultaneously, so that these exhaust outlets can dispel the heat to a plurality of different thermals source respectively.In addition, similarly, in certain embodiments, combination of fans more can have control unit and sensor, but and the chip temperature test number that the control unit reference sensor is passed back is come controlled adjuster.
Though the present invention describes as above with embodiment; right its is not in order to limit the present invention; those skilled in the art without departing from the spirit and scope of the present invention, when can doing a little change and retouching, so protection scope of the present invention is as the criterion when the content that the claim scope that look application is defined.
Claims (20)
1, a kind of combination of fans is applied to an electronic equipment, it is characterized in that, this combination of fans comprises:
One shell has an exhaust outlet;
One centrifugal fan comprises one first rotating shaft and is disposed in this shell so that an air-flow to be provided, and wherein this air-flow produces an air quantity and this airflow direction perpendicular to this first rotating shaft in this exhaust outlet;
One throttle is disposed in this shell movingly, and is positioned at this exhaust outlet; And
One regulator is connected to this throttle, adjusts the size of this exhaust outlet in order to the motion of controlling this throttle.
2, combination of fans as claimed in claim 1, it is characterized in that, this throttle is disposed in this shell rotationally, and is subjected to the driving force that this air-flow produces and rotates, and this throttle comprises one second rotating shaft and this throttle along this second rotating shaft rotation.
3, combination of fans as claimed in claim 2, it is characterized in that, this regulator is a return unit, its have a restoring force and be connected to this shell and this throttle between, in order to resist this driving force with the position of controlling this throttle and the sectional area of adjusting this exhaust outlet, and this return unit is disposed at this second rotating shaft, this return unit is a torque spring, this throttle is a fan-shaped throat, when this driving force during greater than this restoring force, this throttle rotates towards the direction of this air-flow, and when this driving force during less than this restoring force, this throttle is towards the counter-rotation of this air-flow.
4, combination of fans as claimed in claim 1, it is characterized in that, this regulator is an actuator and is connected to this throttle, rotate the size of adjusting this exhaust outlet simultaneously to drive this throttle, to adjust the size of this air quantity, a control unit drives this throttle rotation to control this actuator, this actuator is that a motor and this throttle are a fan-shaped throat and this actuator connects.
5, combination of fans as claimed in claim 4, it is characterized in that, this combination of fans comprises a sensor, be electrically connected to this control unit, so that this control unit sensing one test number, wherein this control unit comprises that a test number/control magnitude of voltage table of comparisons and this control unit hunt out its pairing control magnitude of voltage according to this test number in this test number/control magnitude of voltage table of comparisons, drive this throttle rotation to control this actuator.
6, combination of fans as claimed in claim 1, it is characterized in that, this throttle is disposed in this shell rotationally and this regulator comprises one first magnet assembly and one second magnet assembly, and this first magnet assembly is connected to this throttle, this second magnet assembly is disposed at this shell and can magnetic controls the position of this first magnet assembly,, this throttle adjusts the size of this exhaust outlet so that moving, and to adjust the size of this air quantity.
7, combination of fans as claimed in claim 6, it is characterized in that, this combination of fans comprises a control unit, be electrically connected to this second magnet assembly and this control unit and this second magnet assembly is electrically connected to a control circuit, drive this throttle and move to control this second magnet assembly, and this control unit electrically comprises a test number/control magnitude of voltage table of comparisons and be connected to a sensor so that this control unit sensing one test number and hunt out its pairing control magnitude of voltage in this test number/control magnitude of voltage table of comparisons according to this test number drives this throttle and moves to control this second magnet assembly.
8, combination of fans as claimed in claim 1, it is characterized in that, this regulator comprises that a motor, is connected in the gear of this motor, reaches a tooth bar, this tooth bar is solidly connected to this throttle and is meshed with this gear,, this throttle adjusts the size of this exhaust outlet so that moving, and to adjust the size of this air quantity.
9, a kind of combination of fans is applied to an electronic equipment, and this combination of fans comprises:
One shell has one first exhaust outlet and one second exhaust outlet;
One fan is disposed in this shell, and is suitable for providing an air-flow, and wherein this air-flow produces one first air quantity and produces one second air quantity in this second exhaust outlet in this first exhaust outlet;
One throttle is disposed in this shell movingly, and between this first exhaust outlet and this second exhaust outlet; And
One regulator is connected to this throttle, adjusts the size of this first exhaust outlet and this second exhaust outlet in order to the motion of controlling this throttle.
10, combination of fans as claimed in claim 9 is characterized in that, this throttle is disposed in this shell rotationally, and is subjected to the driving force that this air-flow produces and rotates, and this throttle comprises a rotating shaft and this throttle along this rotating shaft rotation.
11, combination of fans as claimed in claim 10, it is characterized in that, this regulator is a return unit, its have a restoring force and be connected to this shell and this throttle between, in order to resisting this driving force with the position of controlling this throttle and the sectional area of adjusting this first exhaust outlet and this second exhaust outlet, and this return unit is disposed at this rotating shaft, this return unit is that a torque spring and this throttle are a fan-shaped throat.
12, combination of fans as claimed in claim 11, it is characterized in that, when the sectional area of this first exhaust outlet during less than the sectional area of this second exhaust outlet, this first air quantity is less than this second air quantity and when the sectional area of this first exhaust outlet during greater than the sectional area of this second exhaust outlet, this first air quantity is greater than this second air quantity.
13, combination of fans as claimed in claim 11 is characterized in that, when this driving force during greater than this restoring force, throttle rotates towards the direction of this air-flow, and when this driving force during less than this restoring force, throttle is towards the counter-rotation of this air-flow.
14, combination of fans as claimed in claim 9, it is characterized in that, this regulator is an actuator and is connected to this throttle, rotate the size of adjusting this first exhaust outlet and this second exhaust outlet simultaneously to drive this throttle, adjusting the size of this first air quantity and this second air quantity, and this throttle is disposed in this shell rotationally.
15, combination of fans as claimed in claim 14, it is characterized in that this combination of fans comprises a control unit, be electrically connected to this actuator, drive this throttle rotation to control this actuator, wherein this actuator comprises that a motor and this throttle are a fan-shaped throat.
16, combination of fans as claimed in claim 15, it is characterized in that, this combination of fans comprises a first sensor and one second sensor, be electrically connected to this control unit, so that this control unit sensing one first test number and one second test number, wherein this control unit comprises that test number comparative result/control magnitude of voltage table of comparisons and this control unit hunt out its pairing control magnitude of voltage according to the comparative result of this first test number and this second test number in this test number comparative result/control magnitude of voltage table of comparisons, drives this throttle and rotates to control this actuator.
17, combination of fans as claimed in claim 9, it is characterized in that, this throttle is disposed in this shell rotationally and this regulator comprises one first magnet assembly and one second magnet assembly, and this first magnet assembly is connected to this throttle, this second magnet assembly is disposed at this shell and can magnetic controls the position of this first magnet assembly,, this throttle adjusts the size of this first exhaust outlet and this second exhaust outlet so that moving, and to adjust the size of this first air quantity and this second air quantity.
18, combination of fans as claimed in claim 17, it is characterized in that, this combination of fans comprises a control unit, be electrically connected to this second magnet assembly, drive this throttle and move to control this second magnet assembly, wherein this control unit and this second magnet assembly are electrically connected to a control circuit.
19, combination of fans as claimed in claim 18, it is characterized in that, this combination of fans comprises a first sensor and second sensor, be electrically connected to this control unit so that this control unit sensing one first test number and one second test number, wherein this control unit comprises test number comparative result/control magnitude of voltage table of comparisons, and this control unit hunts out its pairing control magnitude of voltage according to the comparative result of this first test number and this second test number in this test number comparative result/control magnitude of voltage table of comparisons, drives this throttle and moves to control this second magnet assembly.
20, combination of fans as claimed in claim 9, it is characterized in that, this regulator comprises that a motor, is connected in the gear of this motor, reaches a tooth bar, this tooth bar is solidly connected to this throttle and is meshed with this gear,, this throttle adjusts the size of this first exhaust outlet and this second exhaust outlet so that moving, and to adjust the size of this first air quantity and this second air quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2008102109569A CN101649842B (en) | 2008-08-15 | 2008-08-15 | Fan assembly |
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| CN2008102109569A CN101649842B (en) | 2008-08-15 | 2008-08-15 | Fan assembly |
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| CN101649842A true CN101649842A (en) | 2010-02-17 |
| CN101649842B CN101649842B (en) | 2011-09-28 |
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| CN2008102109569A Expired - Fee Related CN101649842B (en) | 2008-08-15 | 2008-08-15 | Fan assembly |
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| CN103321962A (en) * | 2012-03-19 | 2013-09-25 | 纬创资通股份有限公司 | Centrifugal fan and electronic device comprising same |
| CN103775368A (en) * | 2014-01-24 | 2014-05-07 | 云浮市益康生环保科技有限公司 | Air volume regulation mechanism |
| CN103814341A (en) * | 2011-09-23 | 2014-05-21 | 苹果公司 | Sculpted fan housing |
| CN104595975A (en) * | 2015-01-05 | 2015-05-06 | 美的集团武汉制冷设备有限公司 | Air conditioner with axial flow fan |
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| FI20021324A (en) * | 2002-07-05 | 2004-01-06 | Sanhem Konsultit Oy | Air flow regulator |
| CN1917754B (en) * | 2005-08-15 | 2010-05-05 | 广达电脑股份有限公司 | Module of heat elimination, and method for controlling radiating wind rate |
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| CN103814341A (en) * | 2011-09-23 | 2014-05-21 | 苹果公司 | Sculpted fan housing |
| CN103814341B (en) * | 2011-09-23 | 2015-08-12 | 苹果公司 | Through the fan drum of moulding |
| CN103321962B (en) * | 2012-03-19 | 2015-08-26 | 纬创资通股份有限公司 | Centrifugal fan and electronic device comprising same |
| CN103321962A (en) * | 2012-03-19 | 2013-09-25 | 纬创资通股份有限公司 | Centrifugal fan and electronic device comprising same |
| US9068573B2 (en) | 2012-03-19 | 2015-06-30 | Wistron Corporation | Centrifugal fan |
| CN103775368A (en) * | 2014-01-24 | 2014-05-07 | 云浮市益康生环保科技有限公司 | Air volume regulation mechanism |
| CN104595975B (en) * | 2015-01-05 | 2017-10-10 | 美的集团武汉制冷设备有限公司 | Air conditioner with axial flow blower |
| CN104595975A (en) * | 2015-01-05 | 2015-05-06 | 美的集团武汉制冷设备有限公司 | Air conditioner with axial flow fan |
| CN105805031A (en) * | 2015-01-20 | 2016-07-27 | 福特全球技术公司 | Blower assembly for vehicle |
| CN110118198A (en) * | 2018-02-05 | 2019-08-13 | 华硕电脑股份有限公司 | Centrifugal fan |
| CN110118198B (en) * | 2018-02-05 | 2021-03-02 | 华硕电脑股份有限公司 | Centrifugal fan |
| US11454247B2 (en) | 2018-06-27 | 2022-09-27 | Dyson Technology Limited | Nozzle for a fan assembly |
| US11486413B2 (en) | 2018-06-27 | 2022-11-01 | Dyson Technology Limited | Nozzle for a fan assembly |
| US11680581B2 (en) | 2018-06-27 | 2023-06-20 | Dyson Technology Limited | Nozzle for a fan assembly |
| US11767853B2 (en) | 2018-11-01 | 2023-09-26 | Dyson Technology Limited | Nozzle for a fan assembly |
| CN117365982A (en) * | 2023-12-08 | 2024-01-09 | 合肥联宝信息技术有限公司 | Heat dissipation fan and electronic equipment |
| CN117365982B (en) * | 2023-12-08 | 2024-04-02 | 合肥联宝信息技术有限公司 | Heat dissipation fan and electronic equipment |
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| CN101649842B (en) | 2011-09-28 |
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