CN101649842A - fan combination - Google Patents

Abstract

A fan assembly applied to an electronic device. The fan assembly includes a housing, a fan, a throttle valve and a regulator. The housing has an air outlet. The fan is disposed in the housing and is suitable for providing an airflow, wherein the airflow generates an air volume at the air outlet. The throttle valve is movably disposed in the housing and is located at the air outlet. The regulator is connected to the throttle valve to control the movement of the throttle valve to adjust the size of the air outlet.

Description

fan combination

technical field

The present invention relates to a fan assembly, and in particular to a fan assembly applied to an electronic device.

Background technique

In recent years, portable electronic devices are developing towards miniaturization and multi-function. Portable electronic devices with more powerful functions usually have higher speed chips. However, the higher the speed of the chip, the more heat energy it will generate, coupled with the miniaturization of the portable electronic device, these factors make the heat dissipation capability of the portable electronic device very important.

A fan is a fairly common component in electronic heat dissipation technology. It usually cooperates with heat dissipation fins to dissipate heat from high-power components to keep the temperature of the components within their operating temperature range. In addition, the active airflow generated by the fan can convect the interior of the electronic device with its external environment, thereby effectively reducing the temperature inside the electronic device.

In order to concentrate the air flow, the housing in which the fan is installed forms an air outlet, and the shape and size of the air outlet are usually fixed. Therefore, if high-speed airflow is to be provided for a specific area (such as a certain part of an electronic component), the speed of the fan can only be increased, but this also causes the airflow generated by the fan to not be effectively utilized, thereby reducing the efficiency of the fan.

Contents of the invention

The purpose of the present invention is to provide a fan assembly applied to an electronic device.

To achieve the above object, the fan assembly of the present invention includes a casing, a fan, a throttle valve and a regulator, wherein the fan includes a rotating shaft and can be a centrifugal fan or an axial fan. The casing has a first air outlet. The fan is arranged in the casing and is suitable for providing an air flow, wherein the air flow generates a first air volume at the first air outlet. When the fan used is a centrifugal fan, the airflow is perpendicular to the rotating shaft of the centrifugal fan; when the fan used is an axial fan, the airflow is parallel to the rotating shaft of the centrifugal fan. The throttling valve is movably arranged in the housing and located at the first air outlet. The regulator is connected to the throttling valve and is used to control the movement of the throttling valve to adjust the size of the first air outlet.

In an embodiment of the present invention, the casing further has a second air outlet, and the air volume of the air flow at the second air outlet is a second air volume. The regulator controls the throttling valve to adjust the size of the first air outlet and the second air outlet, thereby correspondingly adjusting the size of the first air volume and the second air volume.

More specifically, the fan combination provided by the present invention includes:

A shell with an air outlet;

A centrifugal fan includes a first rotating shaft and is arranged in the casing to provide an air flow, wherein the air flow generates an air volume at the air outlet and the air flow direction is perpendicular to the first rotating shaft;

a throttling valve, movably disposed in the casing and located at the air outlet; and

A regulator, connected to the throttling valve, is used to control the movement of the throttling valve to adjust the size of the air outlet.

Said fan combination, wherein, the throttle valve is rotatably arranged in the casing, and is rotated by a driving force generated by the air flow, and the throttle valve includes a second rotating shaft along the The second shaft rotates.

Said fan combination, wherein, the adjuster is a reset member, which has a restoring force and is connected between the casing and the throttle valve, and is used to control the position of the throttle valve and adjust the position of the throttle valve against the driving force. The cross-sectional area of the air outlet, and the reset member is arranged on the second rotating shaft, the reset member is a torsion spring, the throttle valve is a fan-shaped throat, when the driving force is greater than the restoring force, the throttle valve The throttle valve rotates toward the direction of the airflow, and when the driving force is smaller than the restoring force, the throttle valve rotates toward the opposite direction of the airflow.

Said fan combination, wherein the regulator is an actuator connected to the throttle valve to drive the throttle valve to rotate and adjust the size of the air outlet to adjust the air volume, and the actuator A control component is connected to control the actuator to drive the throttle valve to rotate, the actuator is a motor, and the throttle valve is a sector throat.

The fan assembly, wherein, includes a sensor, electrically connected to the control component, so that the control component senses a test value, wherein the control component includes a test value/control voltage value comparison table and the control component according to The test value is searched for a corresponding control voltage value in the test value/control voltage value comparison table, so as to control the actuator to drive the throttle valve to rotate.

Said fan assembly, wherein the throttle valve is rotatably arranged in the casing and the regulator includes a first magnetic assembly and a second magnetic assembly, and the first magnetic assembly is connected to the throttle valve, The second magnetic component is arranged on the casing and can magnetically control the position of the first magnetic component, so as to move the throttle valve to adjust the size of the air outlet, and adjust the size of the air volume.

The fan assembly, wherein, includes a control component electrically connected to the second magnetic component and the control component and the second magnetic component are electrically connected to a control circuit to control the second magnetic component to drive the section The flow valve moves, and the control component electrically includes a test value/control voltage value comparison table and is connected to a sensor so that the control component senses a test value and based on the test value in the test value/control voltage value comparison table A corresponding control voltage value is searched out to control the second magnetic component to drive the throttle valve to move.

Said fan combination, wherein the adjuster includes a motor, a gear connected to the motor, and a rack, the rack is fixed to the throttle valve and meshes with the gear, so that the throttling The valve moves to adjust the size of the air outlet, and to adjust the size of the air volume.

The fan combination of the present invention also includes:

A housing with a first air outlet and a second air outlet;

a fan, configured in the casing, and adapted to provide an air flow, wherein the air flow generates a first air volume at the first air outlet and a second air volume at the second air outlet;

a throttling valve, movably disposed in the casing, and located between the first air outlet and the second air outlet; and

A regulator, connected to the throttling valve, is used to control the movement of the throttling valve to adjust the sizes of the first air outlet and the second air outlet.

Said fan combination, wherein, the throttle valve is rotatably arranged in the casing, and is rotated by a driving force generated by the air flow, and the throttle valve includes a rotating shaft, and the throttle valve is arranged along the rotating shaft rotate.

Said fan combination, wherein, the adjuster is a reset member, which has a restoring force and is connected between the casing and the throttle valve, and is used to control the position of the throttle valve and adjust the position of the throttle valve against the driving force. The cross-sectional area of the first air outlet and the second air outlet, and the reset member is arranged on the rotating shaft, the reset member is a torsion spring, and the throttle valve is a fan-shaped throat.

Said fan combination, wherein, when the cross-sectional area of the first air outlet is smaller than the cross-sectional area of the second air outlet, the first air volume is smaller than the second air volume and when the cross-sectional area of the first air outlet is larger than the second air volume When the cross-sectional area of the second air outlet is large, the first air volume is greater than the second air volume.

Said fan combination, wherein, when the driving force is greater than the restoring force, the throttle valve rotates toward the direction of the airflow, and when the driving force is smaller than the restoring force, the throttle valve rotates toward the opposite direction of the airflow.

Said fan combination, wherein, the regulator is an actuator connected to the throttle valve to drive the throttle valve to rotate and adjust the size of the first air outlet and the second air outlet to adjust the first air outlet. An air volume and the magnitude of the second air volume, and the throttle valve is rotatably arranged in the casing.

Said fan assembly, wherein, includes a control assembly, electrically connected to the actuator, to control the actuator to drive the throttle valve to rotate, wherein the actuator includes a motor and the throttle valve is a Scalloped throat.

The fan assembly, which includes a first sensor and a second sensor, electrically connected to the control component, so that the control component senses a first test value and a second test value, wherein the control component It includes a test value comparison result/control voltage value comparison table, and the control component searches for a corresponding one in the test value comparison result/control voltage value comparison table according to the comparison result between the first test value and the second test value. The voltage value is controlled to control the actuator to drive the throttle valve to rotate.

Said fan assembly, wherein the throttle valve is rotatably arranged in the casing and the regulator includes a first magnetic assembly and a second magnetic assembly, and the first magnetic assembly is connected to the throttle valve, The second magnetic component is arranged on the casing and can magnetically control the position of the first magnetic component, so that the throttle valve can be moved to adjust the size of the first air outlet and the second air outlet, and to adjust the first air outlet. Air volume and the size of the second air volume.

The fan assembly, wherein, includes a control component electrically connected to the second magnetic component to control the second magnetic component to drive the throttle valve to move, wherein the control component and the second magnetic component are electrically connected to a control circuit.

The fan assembly, including a first sensor and a second sensor, electrically connected to the control component so that the control component senses a first test value and a second test value, wherein the control component includes a Test value comparison result/control voltage value comparison table, and the control component searches for a corresponding control in the test value comparison result/control voltage value comparison table according to the comparison result between the first test value and the second test value The voltage value is used to control the second magnetic assembly to drive the throttle valve to move.

Said fan combination, wherein the adjuster includes a motor, a gear connected to the motor, and a rack, the rack is fixed to the throttle valve and meshes with the gear, so that the throttling The valve moves to adjust the size of the first air outlet and the second air outlet, and adjusts the size of the first air volume and the second air volume.

Based on the above, the fan assembly of the present invention has a throttle valve disposed at the air outlet, and the regulator controls the movement of the throttle valve to adjust the size of the air outlet. When the rotation speed of the fan changes, the throttle valve can diverge or concentrate the airflow corresponding to the strength of the airflow. In addition, when the rotational speed of the fan is constant, the throttle valve can adjust the air volume of the air outlet. Therefore, the user has more flexibility in controlling the air flow, thereby improving the efficiency of the fan assembly.

Description of drawings

1A to 1C are schematic diagrams of a fan assembly according to an embodiment of the present invention.

2A to 2C are schematic diagrams of a fan assembly in another embodiment of the present invention.

3A to 3C are schematic diagrams of a fan assembly according to an embodiment of the present invention.

FIG. 4 is a block diagram of the fan assembly in FIGS. 3A to 3C .

5A to 5C are schematic diagrams of a fan assembly in another embodiment of the present invention.

FIG. 6 is a block diagram of the fan assembly in FIGS. 5A to 5C .

FIG. 7 is an exploded view of a fan assembly in an embodiment of the present invention.

8A to 8C are combined schematic diagrams of the fan combination in FIG. 7 .

FIG. 9 is a block diagram of the fan assembly in FIG. 7 .

FIG. 10 is a block diagram of a fan assembly in another embodiment of the present invention.

Fig. 11 is an exploded view of a fan assembly in another embodiment of the present invention.

12A to 12C are schematic views of the fan assembly in FIG. 11 .

FIG. 13 is a block diagram of the fan assembly in FIGS. 12A to 12C .

Fig. 14A is a schematic diagram of a fan assembly in another embodiment of the present invention.

Fig. 14B is a schematic diagram of a fan assembly in another embodiment of the present invention.

Explanation of main component symbols in the drawings

50: chips

50a: first chip

50b: second chip

60: air volume

60a: the first air volume

60b: Second air volume

100, 100a: fan combination

110, 110a: shell

112: Air outlet

112a: the first air outlet

112b: Second air outlet

120: fan

122: Shaft

130: throttle valve

132: Shaft

140: Reset

142: First End

144: second end

200, 200a: fan combination

210, 210a: shell

212: Air outlet

212a: the first air outlet

212b: Second air outlet

220: fan

230: throttle valve

240: Actuator

250: Control components

252: Test value/control voltage value comparison table

260: sensor

260a: first sensor

260b: second sensor

300, 300a, 300b, 300’, 300”: fan combination

310, 310b: shell

312: Air outlet

312a: the first air outlet

312b: Second air outlet

314: top cover

316: Lower cover

316a: track

320: fan

330: throttle valve

340a: first magnetic assembly

340b: second magnetic assembly

342b: First electromagnet

344b: second electromagnet

346b: Third electromagnet

350: control components

352: Test value/control voltage value comparison table

360: sensor

360a: first sensor

360b: Second sensor

370: Control circuit

380: connector

392A, 392B: Motor

394A, 394B: Gears

396A, 396B: rack

Detailed ways

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail with reference to the accompanying drawings.

1A to 1C are schematic diagrams of a fan assembly according to an embodiment of the present invention. It should be noted that, in order to make the drawings clear, only part of the casing is shown in the following drawings, and those skilled in the art can implement according to the requirements according to the content described in the present invention. Please refer to Fig. 1 first, the fan assembly 100 includes a casing 110, a fan 120, a throttle valve 130 and a reset member 140, wherein the fan 120 includes a rotating shaft 122 and can be a centrifugal fan or an axial flow fan. In this embodiment, the fan 120 used is a centrifugal fan and the reset member 140 can be regarded as a component of a regulator. The casing 110 has an air outlet 112 , and the fan 120 is disposed in the casing 110 . In detail, the fan 120 can generate an airflow, and the airflow leaves the casing 110 through the air outlet 112 . The air flow generates an air volume 60 at the air outlet 112 . When the fan 120 used is a centrifugal fan, the direction of the airflow is perpendicular to the shaft 122 of the centrifugal fan, and when the fan 120 used is an axial fan, the direction of the airflow is parallel to the shaft 122 of the axial fan .

Based on the above, the throttle valve 130 is rotatably arranged on the casing 110 and located at the air outlet 112, wherein the throttle valve 130 can generate a driving force relative to the air flow, and this driving force will drive the throttle valve 130 to rotate to change the throttle valve. 130 on the housing 110. The reset member 140 has a restoring force and is connected between the casing 110 and the throttle valve 130 to drive the throttle valve 130 and resist the driving force generated by the air flow to control the position of the throttle valve 130 and adjust the cut-off of the air outlet 112. The area and the air volume of the air outlet are 60. When the driving force generated by the airflow is greater than the restoring force of the reset member 140, the throttle valve 130 will rotate according to the direction of the airflow. When the restoring force of the reset member 140 is greater than the driving force of the airflow, the throttle valve 130 will rotate in the opposite direction of the airflow. In detail, in this embodiment, the throttle valve 130 has a rotating shaft 132, and the throttle valve 130 rotates along the rotating shaft 132, and the reset member 140 is arranged on the rotating shaft 132 and has a restoring force, wherein the reset member 140 can be a The spring is, for example, a torsion spring. When the reset member 140 is a torsion spring, the restoring force is the torsion force of the torsion spring. The reset member 140 can have a first end 142 and a second end 144 , the first end 142 can be fixed on the throttle valve 130 , and the second end 144 can be fixed on the casing 110 .

The user can adjust the speed of the fan 120 to change the intensity of the airflow, and according to the intensity of the airflow, the reset member 140 can adjust the throttle valve 130 to different angles; and depending on the rotation angle, the throttle valve 130 can block different angles. The proportional air outlet 112 is used to adjust the air volume 60 of the air outlet. For example, when the speed of the fan decreases, the airflow intensity decreases simultaneously, and the restoring force of the reset member 140 is greater than the driving force generated by the airflow on the throttle valve 130 , so that the throttle valve 130 rotates to the position shown in FIG. 1B . In this way, the proportion of the air outlet 112 blocked by the throttle valve 130 increases, reducing the cross-sectional area of the air outlet and further reducing the air volume 60 of the air outlet. Although the air volume at the air outlet is reduced at this time, the airflow is more concentrated at the air outlet. When the fan speed increases, the airflow intensity increases simultaneously, and the driving force of the airflow on the throttle valve 130 is greater than the restoring force of the reset member 140, so that the throttle valve 130 rotates from the position shown in FIG. 1A to the position shown in FIG. 1C. In this way, the proportion of the air outlet 112 blocked by the throttle valve 130 is reduced to increase the cross-sectional area of the air outlet and further increase the air volume 60 of the air outlet 112 .

In this embodiment, the fan assembly 100 can be used to dissipate heat from a chip 50 , the chip 50 is disposed at the air outlet 112 , and the airflow generated by the fan 120 is blown out from the air outlet 112 to guide the chip 50 . When the heat dissipation capacity required by the chip 50 is low and the fan speed is reduced, the intensity of the airflow is reduced, and the throttle valve 130 is rotated to the position shown in FIG. To dissipate heat for a specific part of the chip 50; and when the required heat dissipation capacity of the chip 50 is high, the intensity of the airflow increases, and when the throttle valve 130 is rotated to the position shown in Figure 1C, the air outlet 112 is larger and the air volume 60 is larger , can provide a better heat dissipation capability for the chip 50 as a whole. In this way, while the user controls the intensity of the airflow and the air volume 60 at the air outlet with the speed of the fan 120, the throttle valve 130 can also adjust the air volume 60 at the air outlet and the divergence or concentration of the airflow, allowing the user to control the airflow more clearly. Elasticity, thereby improving the use efficiency of the fan 120 .

It is worth noting that, in the above-mentioned embodiment, the housing has an air outlet as an example, but the present invention is not limited thereto. Those skilled in the art can configure an appropriate number of air outlets in the housing according to requirements, for example, in The casing is equipped with multiple air outlets.

2A to 2C are schematic diagrams of a fan assembly in another embodiment of the present invention. Please refer to FIG. 2A to FIG. 2C. It should be explained that this embodiment is partially similar to the embodiment in FIG. 1A to FIG. 1C, and in this embodiment and the embodiment in FIG. 1A to FIG. Component numbers designate the same or similar components. The differences between the two embodiments will be described in detail below, and the similarities will not be repeated.

In this embodiment, the casing 110a of the fan assembly 100a has a first air outlet 112a and a second air outlet 112b, and the throttle valve 130 is disposed at the intersection of the first air outlet 112a and the second air outlet 112b. The fan 120 can generate an airflow, which is respectively blown out from the first air outlet 112a and the second air outlet 112b. The air volume at the first air outlet is a first air volume 60a, and the air volume of the second airflow 60b at the second air outlet is a second air volume. The fan assembly 100a of this embodiment can be applied to the heat dissipation of two heat sources. For example, the user can place a first chip 50a on the first air outlet 112a to dissipate heat with the first air volume 60a, and place a second chip 50b is placed in the second air outlet 112b to dissipate heat with the second air volume 60b.

Based on the above, when the throttle valve 130 rotates, the size ratio of the first air outlet 112a and the second air outlet 112b can be adjusted. In detail, when the throttle valve 130 is rotated from the position shown in FIG. 2A to the position shown in FIG. 2B, the first air volume is smaller than the second air volume because the cross-sectional area of the first air outlet decreases while the cross-sectional area of the second air outlet increases; When the throttle valve 130 is rotated to the position shown in FIG. 2C , the second air volume is greater than the first air volume because the cross-sectional area of the first air outlet increases while the cross-sectional area of the second air outlet decreases.

3A to 3C are schematic diagrams of a fan assembly according to an embodiment of the present invention. It should be noted that, in order to make the drawings clear, only part of the casing is shown in the following drawings, and those skilled in the art can implement according to the requirements according to the content described in the present invention. Referring to FIGS. 3A to 3C , the fan assembly 200 includes a casing 210 , a fan 220 , a throttle valve 230 and an actuator 240 . In this embodiment, the actuator 240 is regarded as a component of a regulator. The casing 210 has an air outlet 212 , and the fan 220 is disposed in the casing 210 . In detail, the fan 220 can generate an airflow, and the airflow leaves the casing 210 through the air outlet 212 .

Based on the above, the throttle valve 230 is rotatably disposed on the casing 210 and located at the air outlet 212 , wherein the throttle valve 230 can be a throat in the fan assembly. The actuator 240 is connected to the throttle valve 230 and drives the throttle valve 230 to adjust the size of the air outlet 212 . In detail, the actuator 240 may include a motor, and the throttle valve 230 may be driven to rotate when the actuator 240 rotates. According to different rotation angles, the throttle valve 230 can block different proportions of the width of the air outlet 212 to adjust the air volume of the air outlet 212 . For example, when the fan 220 rotates at a fixed speed, the airflow generates an air volume at the air outlet 212, and when the throttle valve 230 rotates from the position of FIG. 3A to the position of FIG. 3B, the air outlet 212 is blocked by the throttle valve 230. The proportion increases to reduce the air volume of the air outlet 212 ; and when the throttle valve 230 rotates to the position shown in FIG. 3C , the proportion of the air outlet 212 blocked by the throttle valve 230 decreases, thereby increasing the air volume of the air outlet 212 .

In this embodiment, the fan assembly 200 can be used to dissipate heat from a chip 50 , the chip 50 is disposed at the air outlet 212 , and the airflow generated by the fan 220 is blown out from the air outlet 212 to guide the chip 50 . When the chip 50 needs a relatively high heat dissipation capacity, the throttle valve 230 of the fan assembly 200 can be rotated from the position of FIG. 3A to the position of FIG. Better heat dissipation. In this way, in addition to controlling the air volume of the air outlet by the speed of the fan 220, the user can also change the air volume of the air outlet by the throttle valve 230 without changing the speed of the fan, so that the user can control the air flow more flexibly, and further Improve the use efficiency of the fan 220 .

FIG. 4 is a block diagram of the fan assembly in FIGS. 3A to 3C . Please refer to FIG. 4 , the fan assembly 200 may also have a control component 250 . The control component 250 is, for example, an electronic controller, which can be integrated into other electronic components, such as a south bridge chip of a personal computer, etc., and the control component 250 is electrically connected to the actuator 240 to control the rotation of the actuator 240 . In addition, the fan assembly 200 may further include a sensor 260 . In this embodiment, the sensor is a temperature sensor but does not limit the scope of the present invention. The sensor 260 is configured on the chip 50 , for example, and the sensor 260 is electrically connected to the control component 250 . The sensor 260 can test the temperature of the chip 50 and transmit the test value to the control component 250 , and the control component 250 can refer to the test value provided by the sensor 260 to control the actuator 240 to determine the size of the air outlet 212 . The control component 250, for example, can have a built-in test value/control voltage value comparison table 252 or a test value comparison result/control voltage value comparison table, and the control component 250 is in the test value/control voltage value comparison table 252 or test value comparison table. Search the test value or the comparison result of the test value provided by the sensor 260 in the result/control voltage comparison table, and obtain a corresponding control voltage value to control the actuator 240, and drive the throttle valve 230 to rotate to a corresponding value. angle of rotation.

Although the above is described with the temperature sensed by the sensor 260 as an example, the sensor 260 can also be one of a temperature sensor, a current sensor, a voltage sensor, etc., or a sensor with a combination of the above functions to transmit the sensed value Go to the control component 250 to determine whether the fan assembly 200 needs to provide a larger cooling capacity, wherein the voltage sensor or current sensor is used to sense the voltage/current used by the fan assembly 200 or the voltage/current used by the sensing chip 50 current.

It is worth noting that, in the above-mentioned embodiment, the housing has an air outlet as an example, but the present invention is not limited thereto. Those skilled in the art can configure an appropriate number of air outlets in the housing according to requirements, for example, in The casing is equipped with multiple air outlets.

5A to 5C are schematic diagrams of a fan assembly in another embodiment of the present invention. Please refer to FIG. 5A to FIG. 5C. It should be explained first that this embodiment is partially similar to the embodiment in FIG. 3A to FIG. 3C, and in this embodiment and the embodiment in FIG. 3A to FIG. Component numbers designate the same or similar components. The differences between the two embodiments will be described in detail below, and the similarities will not be repeated.

In this embodiment, the casing 210a of the fan assembly 200a has a first air outlet 212a and a second air outlet 212b, and the throttle valve 230 is disposed at the junction of the first air outlet 212a and the second air outlet 212b. The fan assembly 200a of this embodiment can be applied to dissipate heat from two heat sources. For example, the user can place a first chip 50a at the first air outlet 212a, and place a second chip 50b at the second air outlet. 212b.

Based on the above, when the throttle valve 230 rotates, the size ratio of the first air outlet 212a and the second air outlet 212b can be adjusted. In detail, the air volumes generated by the airflow at the first air outlet 212a and the second air outlet 212b are respectively the first air volume and the second air volume. When the heat dissipation capacity required by the first chip 50a is lower than that of the second chip 50b, the throttle valve 230 is rotated from the position shown in FIG. 5A to the position shown in FIG. 5B. The air outlet cross-sectional area of the air outlet 212a and the second air outlet 212b makes the first air volume of the first air outlet 212a smaller, and makes the second air volume of the second air outlet 212b larger to conform to the first chip 50a and heat dissipation requirements of the second chip 50b. When the heat dissipation capability required by the first chip 50a is higher than that of the second chip 50b, the throttle valve 230 is rotated to the position shown in FIG. 5C . At this time, the first air volume of the first air outlet 212a can be larger by changing the air outlet cross-sectional area of the first air outlet 212a and the second air outlet 212b without changing the fan speed, so that the second air outlet 212b The second air volume is smaller to meet the cooling requirements of the first chip 50a and the second chip 50b.

FIG. 6 is a block diagram of the fan assembly in FIGS. 5A to 5C . Please refer to FIG. 6 , the fan assembly 200a may also have a sensor. For example, the fan assembly 200a may further include a first sensor 260a and a second sensor 260b. The first sensor 260 a is for example configured on the first chip 50 a , and the second sensor 260 b is for example configured on the second chip 50 b , and the first sensor 260 a and the second sensor 260 b are electrically connected to the control component 250 . The first sensor 260a can test the temperature of the first chip 50a, and the second sensor 260b can test the temperature of the second chip 50b, and transmit these test values to the control component 250, and the control component 250 can refer to and compare the first sensor 260a and the second sensor 260b provide these test values to determine the heat dissipation capability required by the first chip 50a and the second chip 50b and control the actuator 240 by the test value comparison result/control voltage value comparison table to determine the first The size of the air outlet 212a and the second air outlet 212b.

The implementation manners of the first sensor 260 a and the second sensor 260 b can refer to the above-mentioned sensor 260 , which will not be repeated here.

FIG. 7 is an exploded view of the fan assembly in an embodiment of the present invention, and FIGS. 8A to 8C are schematic diagrams of the fan assembly in FIG. 7 . It should be noted that only the lower cover of the casing is shown in FIGS. 8A to 8C to make the drawings clear. 7 and 8A, the fan assembly 300 includes a housing 310, a fan 320, a throttle valve 330, a first magnetic component 340a and a second magnetic component 340b. In this embodiment, the first magnetic component 340a and the second magnetic component 340b are regarded as components of an adjuster. The casing 310 includes an upper cover 314 and a lower cover 316, an accommodating space is formed between the upper cover 314 and the lower cover 316 to accommodate the fan 320, and the casing 310 has an air outlet 312, and the fan 320 is disposed in the casing 310, wherein The fan 320 can generate an airflow, and the airflow leaves the casing 310 through the air outlet 312 .

Based on the above, the throttle valve 330 is movably disposed on the casing 310 and located at the air outlet 312 . The first magnetic assembly 340a is connected to the throttle valve 330, and the second magnetic assembly 340b is configured on the casing 300, and the second magnetic assembly 340b is used to magnetically control the position of the first magnetic assembly 340a to control the movement of the throttle valve 330. Adjust the size of the air outlet 312.

Specifically, the material of the first magnetic component 340a can be ferromagnetic metal or ferromagnetic metal, such as iron; and the second magnetic component 340b can include an electromagnet. According to different product design requirements, the second magnetic component 340b can be a single electromagnet or a plurality of electromagnets. When the second magnetic component 340b is a single electromagnet, the position of the first magnet can be controlled by changing the magnetism of the electromagnet. When the polarity of the second magnetic assembly 340b is the same as that of the first magnetic assembly 340a, the second magnetic assembly will generate a repulsive force to the first magnetic assembly to drive the throttle valve 330; when the polarity of the second magnetic assembly 340b is the same as that of the first magnetic assembly When the magnetic component 340 a is opposite, the second magnetic component will generate suction force on the first magnetic component to drive the throttle valve 330 , thereby adjusting the size of the air outlet 312 .

In this embodiment, the second magnetic component 340b can be composed of a first electromagnet 342b, a second electromagnet 344b and a third electromagnet 346b, but this does not limit the scope of the present invention. When the first electromagnet 342b is energized to generate attractive magnetism, the first magnetic component 340a moves toward the first electromagnet 342b. Similarly, this method can also be used to move the first magnetic component 340a to the second electromagnet 344b or the third electromagnet 346b. It should be noted that in this embodiment, although the second magnetic assembly 340b is composed of a first electromagnet 342b, a second electromagnet 344b and a third electromagnet 346b as an example, the present invention is not limited thereto. Those skilled in the art can configure different numbers of electromagnets according to requirements, for example, only configure one first electromagnet and one second electromagnet.

In addition, the fan assembly 300 may also have a connecting piece 380 connected between the first magnetic component 340a and the throttle valve 330; and the lower cover 316 of the casing 310 may have a track 316a, and the connecting piece 380, the first magnetic The component 340a and the throttle valve 330 are disposed on the track 316a, so that the first magnetic component 340a can drive the throttle valve 330 to move along the track 316a.

Please refer to FIG. 8A to FIG. 8C , according to different positions, the throttle valve 330 can block different proportions of the air outlets 312 to adjust the air volume. For example, when the fan 320 rotates at a fixed speed, the airflow generates an air volume at the air outlet 312. When the first magnetic assembly 340a moves toward the first electromagnet 342b, the throttle valve 330 moves from the position shown in FIG. 8A to the position shown in FIG. 8B. When the position of the air outlet 312 is increased by the throttle valve 330, the air volume of the air outlet 312 will be reduced when the fan 320 rotates at a constant speed; and when the throttle valve 330 is moved to the position of FIG. 8C, The proportion of the air outlet 312 blocked by the throttle valve 330 is reduced, and the air volume of the air outlet 312 will be increased under the condition that the fan 320 rotates at a constant speed.

In this embodiment, the fan assembly 300 can be used to dissipate heat from a chip 50 , the chip 50 is disposed at the air outlet 312 , and the airflow generated by the fan 320 is blown out from the air outlet 312 to guide the chip 50 . When the cooling capacity required by the chip 50 is low, the throttle valve 330 moves to the position shown in FIG. 8B to narrow the air outlet 312 . At this time, the fan speed can be used to dissipate heat for a specific part of the chip 50 under the condition that the speed of the fan remains unchanged; when the cooling capacity required by the chip 50 is high, the throttle valve 330 is moved to the position shown in FIG. 8C to expand the air outlet 312 . Therefore, under the condition that the rotation speed of the fan remains unchanged, the air volume of the air outlet will be increased to provide better heat dissipation capability of the chip 50 . In this way, in addition to controlling the air volume of the air outlet by the speed of the fan 320 , the user can also use the air volume of the air outlet of the throttle valve 330 to allow the user to control the air flow more flexibly, thereby improving the use efficiency of the fan 320 .

FIG. 9 is a block diagram of the fan assembly in FIG. 7 . Please refer to FIG. 9 , the fan assembly 300 may also have a control component 350 . The control component 350 is, for example, an electronic controller, which can be integrated into other electronic components, such as the south bridge chip of a personal computer, etc., and the control component 350 is electrically connected to the second magnetic component 340b to control the second magnetic component 340b and Make the first magnetic assembly 340a move and drive the throttle valve 330 . In addition, the fan assembly 300 may further include a sensor 360 . The sensor 360 is, for example, configured on the chip 50 , and the sensor 360 is electrically connected to the control component 350 . The sensor 360 can test the temperature of the chip 50 and transmit the test value to the control component 350 , and the control component 350 can refer to the test value provided by the sensor 360 to control the second magnetic component 340b to determine the size of the air outlet 312 . Based on the above, the control component 350 can, for example, build a test value/control voltage value comparison table 352 or a test value comparison result/control voltage value comparison table, and the control component 350 is in the test value/control voltage value comparison table 352 or Search the test value provided by the sensor 360 in the test value comparison result/control voltage comparison table, and obtain a corresponding control voltage value to control the second magnetic component 340b and drive the throttle valve 330 to rotate to a corresponding position.

Although the above is described with the sensor 360 sensing temperature as an example, the sensor 360 can also be one of a temperature sensor, a current sensor, a voltage sensor, etc., or a sensor with a combination of multiple above-mentioned functions to transmit the sensed value Go to the control component 350 to determine whether the fan assembly 300 needs to provide greater cooling capacity, wherein the voltage sensor or current sensor is used to sense the voltage/current used by the fan assembly 300 or the voltage/current used by the sensing chip 50 current.

FIG. 10 is a block diagram of a fan assembly in another embodiment of the present invention. Please refer to FIG. 10 . Compared with the fan assembly 300 , the fan assembly 300 a further has a control circuit 370 electrically connected between the control assembly 350 and the second magnetic assembly 340 b. The control circuit 370 can receive the signal from the control component 350 and provide an external power to control the second magnetic component 340b.

It is worth noting that, in the above embodiments, the housing has an air outlet as an example, but the present invention is not limited thereto. Those skilled in the art can configure an appropriate number of air outlets in the housing according to requirements, for example, in the housing Configure multiple air outlets.

FIG. 11 is an exploded view of a fan assembly in another embodiment of the present invention, and FIGS. 12A to 12C are schematic diagrams of the fan assembly in FIG. 11 . Please refer to Fig. 11 and Fig. 12A to Fig. 12C. It should be explained first that this embodiment is partially similar to the embodiment in Fig. 8A to Fig. 8C, and in this embodiment and Fig. 8A to Fig. 8C, the same or similar component numbers represent the same or similar components. The differences between the two embodiments will be described in detail below, and the similarities will not be repeated.

In this embodiment, the casing 310b of the fan assembly 300b has a first air outlet 312a and a second air outlet 312b, and the throttle valve 330 is disposed at the junction of the first air outlet 312a and the second air outlet 312b. The fan assembly 300a of this embodiment can be applied to dissipate heat from two heat sources. For example, the user can place a first chip 50a at the first air outlet 312a, and place a second chip 50b at the second air outlet. 312b.

Based on the above, when the throttle valve 330 moves, the size ratio of the first air outlet 312a and the second air outlet 312b can be adjusted. In detail, the air volumes generated by the airflow at the first air outlet 312a and the second air outlet 312b are respectively the first air volume and the second air volume. When the first chip 50a requires a lower heat dissipation capability than the second chip 50b, when the throttle valve 330 is moved from the position shown in FIG. 12A to the position shown in FIG. 12B, the first air outlet 312a can be made The first air volume becomes smaller and the second air volume of the second air outlet 312b becomes larger so that the second chip 50b obtains a higher heat dissipation capability. ; When the heat dissipation capacity required by the first chip 50a is higher than that of the second chip 50b, when the throttle valve 330 is rotated to the position shown in Figure 12C, the first air outlet 312a of the first air outlet 312a can be made to rotate without changing the fan speed. The air volume is larger and the second air volume of the second air outlet 312b is made smaller so that the first chip 50a obtains a higher heat dissipation capability.

FIG. 13 is a block diagram of the fan assembly in FIGS. 12A to 12C . Please refer to FIG. 13 , the fan assembly 300b may also have a sensor. For example, the fan assembly 300b may further include a first sensor 360a and a second sensor 360b. The first sensor 360a is for example configured on the first chip 50a , and the second sensor 360b is for example configured on the second chip 50b , and the first sensor 360a and the second sensor 360b are electrically connected to the control component 350 . The first sensor 360a can test the temperature of the first chip 50a, and the second sensor 360b can test the temperature of the second chip 50b, and transmit these test values to the control component 350, and the control component 350 can refer to and compare the first sensor 360a and the test values provided by the second sensor 360b to determine the required heat dissipation capacity of the first chip 50a and the second chip 50b and control the second magnetic component 340b by the test value comparison result/control voltage value comparison table to determine the first chip 50a and the second chip 50b. Sizes of the first air outlet 312a and the second air outlet 312b. In addition, the fan assembly 300b can have a control circuit (not shown) like the fan assembly 300a, and the implementation of the control circuit can refer to the fan assembly 300a in FIG. 10; in addition, the implementation of the first sensor 360a and the second sensor 360b Reference may be made to the above-mentioned sensor 360 , and details are not repeated here.

Fig. 14A is a schematic diagram of a fan assembly in another embodiment of the present invention. Please refer to FIG. 14 , this embodiment is partially similar to the embodiment of FIG. 8A , and the same or similar component numbers represent the same or similar components. The differences between the two embodiments will be described in detail below, and the similarities will not be repeated here. In this embodiment, the fan assembly 300A includes a motor 392A, a gear 394A and a rack 396A. In this embodiment, the motor 392A, the gear 394A and the rack 396B are regarded as components of a regulator. The gear 394A is connected to the motor 392A and is adapted to be driven to rotate by the motor 392A. The rack 396A is fixedly connected to the throttle valve 330 and meshes with the gear 394A to control the movement of the throttle valve 330 to adjust the size of the first air outlet 112a and to adjust the size of the first air volume.

Fig. 14B is a schematic diagram of a fan assembly in another embodiment of the present invention. Referring to FIG. 14B , this embodiment is partially similar to the embodiment of FIG. 12 , and the same or similar component numbers represent the same or similar components. The differences between the two embodiments will be described in detail below, and the similarities will not be repeated here. In this embodiment, the fan assembly 300B includes a motor 392B, a gear 394B and a rack 396B. In this embodiment, the motor 392B, the gear 394B and the rack 396B are regarded as an adjuster. The gear 394B is connected to the motor 392B and adapted to be driven to rotate by the motor 392B. The rack 396B is fixedly connected to the throttle valve 330 and meshes with the gear 394B to control the movement of the throttle valve 330 to adjust the size of the first air outlet 112a and the second air outlet 112b, and to adjust the first air volume and the second air volume. Second, the size of the air volume.

To sum up, the fan assembly of the present invention has a throttling valve disposed at the air outlet, and the regulator controls the movement of the throttle valve to adjust the size of the air outlet. When the rotation speed of the fan changes, the throttle valve can diverge or concentrate the airflow corresponding to the strength of the airflow. In addition, when the rotational speed of the fan is constant, the throttle valve can adjust the air volume of the air outlet. Therefore, the user has more flexibility in controlling the air flow, thereby improving the efficiency of the fan assembly.

In addition, in some embodiments, the casing can have multiple air outlets, and the throttling valve can adjust the size ratio of these air outlets, and can adjust the air volume of these air outlets at the same time, so that these air outlets can be divided into multiple air outlets. dissipate heat from different heat sources. In addition, similarly, in some embodiments, the fan assembly can further have a control component and a sensor, and the control component can control the regulator with reference to the chip temperature test value returned by the sensor.

Although the present invention has been described above with the embodiments, it is not intended to limit the present invention. Those skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention, so the protection scope of the present invention The content defined in the scope of the claims of the application shall prevail.

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.

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