TW201226718A - A fan having a dust exhaust structure and a dust exhaust method of an electronic equipment - Google Patents

Abstract

A fan, having a dust exhaust structure, utilizes an impeller rotating along a dust exhaust direction and a heat dissipation direction to remove the dust from a heat dissipation opening. Then, the dust can be exhaust through a dust exhaust opening to a dust collection box.

Description

201226718 VI. Description of the Invention: [Technical Field] The present invention relates to a fan device having a dust exhausting mechanism, and more particularly to a fan device that utilizes forward and reverse rotation of an impeller to remove dust adhering to a heat dissipation port. [Prior Art] • The general purpose of the notebook computer is usually equipped with a cooling fan to reduce the temperature inside the computer. However, after a certain period of time, the cooling fan will accumulate dust at the heat dissipation port, which will affect the fan speed and heat dissipation efficiency. Therefore, the cooling fan needs to be removed from the inside of the notebook for cleaning or replacement. However, since the inside of the notebook computer needs to be provided with a large number of computer parts in a limited space, the cooling fan cannot be easily disassembled, which causes difficulty in cleaning the user. In order to solve the above problems, the conventional technology utilizes the forward rotation and the reverse rotation of the heat dissipation fan to blow off the dust at the heat dissipation port, but the dust that is blown off is also blown out from the original heat dissipation port, so part of the dust It will also adhere to the heat dissipation port, especially when the dust is agglomerated, the size of the agglomerated dust may be larger than the diameter of the filter at the heat dissipation port, so the cooling fan cannot blow out the dust, and the dust cannot be effectively removed. . SUMMARY OF THE INVENTION In order to solve the above-mentioned deficiencies of the prior art, it is an object of the present invention to provide a fan device having a dust-discharging mechanism that utilizes an impeller edge of a fan device

PNAI-AC-0006-TWXX/0814-A42746TW-F 201226718 A dust direction and a heat dissipation direction are rotated to remove dust attached to the heat dissipation port, and dust can be discharged from another dust outlet and concentrated in a dust collection box. In order to achieve the above object, the present invention provides a fan apparatus having a dust exhausting mechanism comprising a casing, an impeller and a dust collecting box. The housing is provided with a dust exhaust port, a heat dissipation port and an air inlet. The impeller is disposed within the housing and selectively rotates in a direction of heat dissipation or in a direction of dust drainage. The dust box is provided with a dust collecting port and an exhaust port, and the dust collecting port and the dust discharging port are in communication with each other. When the impeller rotates along the heat dissipation direction, the airflow enters through the air inlet and flows out through the heat dissipation port. When the impeller rotates along the dust discharge direction, part of the airflow enters through the air inlet and flows out through the exhaust port to drive the portion adjacent to the heat dissipation. Dust from the mouth to the inside of the dust box. In order to achieve the above object, the present invention further provides a dust discharging method for an electronic device, comprising the following steps. First, the impeller that controls the fan unit rotates in a heat dissipating direction, and the dustproof door of the fan unit is in a closed position, and the air flow can flow out through the heat dissipating port of the fan unit. After receiving the dust signal, the processing unit controls the impeller of the fan device to rotate in a dust-discharging direction, and moves the dust-proof door of the fan device to an open position, so that the airflow drives the dust inside the fan device to be dusted by the fan device. The mouth is discharged. After the impeller rotates in the direction of dust discharge for a predetermined period of time, the impeller is controlled to rotate in the direction of heat dissipation, and the dust door is placed in the closed position, and the airflow flows out through the heat radiating port of the fan unit. The foregoing dust emission signal may be generated according to the temperature inside the electronic device or the temperature of the heating element, or may be generated by the user pressing a dust button or clicking on the dusting object displayed on the display screen.

PNAI-AC-0006-TWXX/0814-A42746TW-F 201226718 In order to achieve the above object, the present invention further provides a dust-discharging method for an electronic device, comprising the steps of: when the electronic device is powered on or activated via a sleep mode, The control program transmits a dust exhaust signal to the processing unit. When a processing unit receives a dust signal, the impeller of the fan device is controlled to rotate in a dust discharge direction, and the dust door of the fan device is moved to an open position, so that an air flow drives the dust inside the fan device through the fan device. The dust outlet is discharged. After the impeller is rotated in the dust discharge direction for a predetermined time, the impeller is controlled to rotate in a heat dissipation direction, and the dust door is placed in the closed position, and the airflow flows out through the heat dissipation port of the fan device. The aforementioned control program also transmits a dust exhaust signal to the processing unit at intervals, so that the impeller rotates in the dust discharge direction and moves the dust door to an open position. In summary, the fan device with the dust-discharging mechanism of the present invention rotates in a dust-discharging direction and a heat-dissipating direction to remove dust attached to the heat-dissipating port, and can discharge dust from another dust-discharging port. The utility model is concentrated on a dust box, so that the invention can remove the dust inside the air dispersing device without removing the fan device from the electronic device, and can remove dust more effectively than the prior art, and can maintain the surrounding of the fan device. tidy. In addition, the dust discharging method of the electronic device of the present invention provides a relatively simple and convenient method, so that the fan device can automatically remove the internal dust according to the setting, or simply press a dust button or click through the user. A row of dust items can control the fan unit to remove dust from the inside. [Embodiment]

PNAI-AC-0006-TWXX/0814-A42746TW-F 201226718 This section describes the best mode for carrying out the invention, and is intended to illustrate the spirit of the invention and not to limit the scope of the invention. The scope of the application is subject to the definition of the scope of the patent application. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing a first embodiment of a fan unit having a dust exhausting mechanism of the present invention. The fan unit 1000 having a dust exhausting mechanism may be a centrifugal fan including a housing 100, an impeller 200, a heat dissipating unit 300, and a dust collecting box 400. The housing 100 can be a hollow structure, and the housing 100 can include a body 110 and a channel portion 120. The main body portion 11 is provided with an air inlet 111 and a heat dissipation opening 112, and the passage portion 120 is provided with a dust exhaust port 121. The main body portion 110 and the channel portion 120 communicate with each other, and a communication port 113 is formed in the body portion of the body portion and the channel portion ι2. The impeller 200 is disposed in the body portion n of the casing 1 and is selectively rotatable in a heat dissipation direction D1 or reversely in a dust direction D2 'meaning that the dust direction D2 is The opposite direction of the heat dissipation direction D1. The impeller 200 can be a centrifugal impeller. The impeller 2〇〇 also includes a hub 21〇 and a plurality of fan blades 220. The fan blades 220 are radially extended from the hub 21 and spirally arranged along the dust discharge direction D2. Extend outside. The heat dissipating unit 300 can be formed by a plurality of heat dissipating fins, and the heat dissipating fins can be arranged in parallel with each other at the air outlet. In this embodiment, the heat dissipating unit 300 is disposed outside the casing 1 , in another embodiment. The middle system may be disposed inside the casing 100. In addition, those skilled in the art can also replace the heat sink unit 300 with a component such as a screen.

PNAI-AC-0006-TWXX/0814-A42746TW-F 201226718 The dust box 400 can be a hollow structure, and the dust box 400 is detachably provided to the channel portion 120. The dust collecting box 400 is provided with a dust collecting port 410 and an exhaust port 420. The exhaust port 420 can be provided with an exhaust filter screen 42. The dust collecting port 410 and the dust exhausting port 121 communicate with each other. The port 410 and the exhaust port 420 may be located on the same side of the dust box 400. In another embodiment, the dust collecting port 410 and the exhaust port 420 are located on opposite sides of the dust box 400. The dust box 400 includes a dustproof door 430 that is movably disposed in the dust box 400, so that the dust door 430 selectively covers the air outlet 420 or the dust collection port 410. In the embodiment, when the impeller 200 rotates along the heat dissipation direction D1, the dustproof door 430 is closed to the dust collecting port 410. When the impeller 200 rotates along the dust removing direction D2, the dustproof door 430 is closed to the exhaust port 420. And the dustproof door 430 can be provided with a dust filter, a mesh 431, so that the airflow can pass through the dustproof door 430. The detailed structure of the dustproof door 430 is moved according to the rotation direction of the impeller 200. A person familiar with the technology can implement the combination of the motor and the gear, and can input the positive or negative voltage according to the rotation direction of the impeller 200 to move. The dust-proof door 430, therefore, the specific structure of the detail is not described here. Referring to Figures 1 and 2, Figure 2 is a side elevational view of a first embodiment of a fan unit having a dust-discharging mechanism of the present invention. In the first and second figures, the impeller 200 rotates along the heat dissipation direction D1, so that the airflow enters through the air inlet 111, and is driven by the fan blade 220 to flow the airflow away from the hub 210, and finally through the heat dissipation port. 2 outflow, if there is dust in the airflow, part of the heat dissipation unit 300 will be deposited at the heat dissipation port 112

PNAI-AC-0006-TWXX/0814-A42746TW-F 201226718. At this time, the dustproof door 430 is closed to the dust collecting port 410, so that dust of the dust collecting box 400 can be prevented from entering the casing 100. Please refer to FIG. 3 and FIG. 4, FIG. 3 is a perspective view of a first embodiment of a fan device having a dust exhausting mechanism according to the present invention, and FIG. 4 is a first embodiment of a fan device having a dust removing mechanism of the present invention. A schematic side view of the example in which the impeller 200 is rotated in a dust-discharging direction D2. At this time, the airflow also enters through the air inlet 111, and is driven by the fan blade 220 to flow the airflow away from the hub 210. Since the direction in which the airflow is blown toward the heat dissipation port 112 is different from the rotation of the impeller 200 in the heat dissipation direction D1, the dust deposited on the heat dissipation port 112 is loosened so as to be separated from the heat dissipation port 112, and is blown into the channel portion 120 along the flow of the airflow. . At this time, the dustproof door 430 is closed to the exhaust port 420, so that part of the airflow can flow into the dust collecting port 410 through the dust exhaust port 121 of the tunnel portion 120, and finally discharged through the exhaust port 420. Since the exhaust port 420 is provided with the exhaust filter 421, the dustproof door 430 is provided with the dust filter 431, so that the dust entrained in the airflow is accumulated inside the dust collecting case 400. Therefore, the dust in the embodiment is discharged from the dust exhaust port 121, and is not discharged from the heat dissipation port 112 as in the prior art, and the dust inside the fan device 1000 can be effectively removed, and the dust can be collected in the dust box 400. To maintain the cleanliness of the outside of the notebook. In addition, the dust box 400 is detachably designed from the casing 100, and the user can easily disassemble the dust box 400 after a period of time to remove dust inside the dust box 400. Referring to Figures 5 and 6, a perspective view of a second embodiment of a fan apparatus having a dust exhausting mechanism of the present invention. In Figure 5, the impeller 200 is scattered along

PNAI-AC-0006-TWXX/0814-A42746TW-F 201226718 The hot direction D1 rotates. In Fig. 6, the impeller 200 rotates in the dust discharge direction D2. The second embodiment is different from the first embodiment in that the dustproof door 430 is movably disposed on the body portion 110, and the dust filter 431 may not be provided. When the impeller 200 is rotated in the heat radiating direction D1, the dustproof door 430 is closed to the communication port 113. When the impeller 200 is rotated in the dust discharge direction D2, the dustproof door 430 is away from the communication port 113 to expose the communication port 113. In another embodiment, the dustproof door 430 can be disposed on the channel portion 120 of the housing 100. When the impeller 200 rotates along the heat dissipation direction D1, the dustproof door 430 is closed to the dust exhaust port 121. When the direction D2 is rotated, the dustproof door 430 is away from the dust exhaust port 121 to expose the dust exhaust port 121. In another embodiment, the dustproof door 430 can be disposed on the dust collecting box 400 and does not cover the exhaust port 420. When the impeller 200 rotates along the heat dissipation direction D1, the dustproof door 430 is closed to the dust collecting port 410. When the impeller 200 rotates in the dust removing direction D2, the dustproof door 430 is away from the dust collecting port 410 to expose the dust collecting port 410. Please refer to FIG. 7 , which is a diagram showing the use state of the fan device with the dust exhausting mechanism of the present invention installed in an electronic device, and also refers to FIG. 1 together. The electronic device 500 can be a notebook computer. The electronic device 500 can include a casing 510, a motherboard 520, and a processing unit 530. The processing unit 530 can be a heat source and disposed on the motherboard 520. The processing unit 530 is connected to the heat dissipation unit 300 via a heat pipe (not shown) to transfer the heat of the processing unit 530 to the heat dissipation unit 300, and the airflow from the heat dissipation port 112 is blown by the fan device 1000. The heat sink unit 300 is cooled. The fan device 1000 can be disposed inside the casing 510 to collect dust.

PNAI-AC-0006-TWXX/0814-A42746TW-F 201226718 The box 400 can be disposed between the motherboard 520 and the casing 510, and the casing 510 can open an opening corresponding to the dust box 400 (not shown). In another embodiment, the dust collecting port 410 and the exhaust port 420 are located on opposite sides of the dust collecting box 400. In other words, the exhaust port 420 is adjacent to the housing 100. The user does not need to disassemble the dust box 400, but the dust can be directly removed after the exhaust filter 421 is removed, or the dust box 400 is not provided with the exhaust filter 421, and the dust can be directly directly discharged through the exhaust port 420. It is discharged outside the dust box 400 and the casing 510. Referring to Figure 8, a functional block diagram of an electronic device having a dust exhaust system of the present invention, wherein the fan device 1000 is disposed within the electronic device 500. The electronic device 500 further includes a heating element 540, a detecting unit 550, a memory unit 560, an input unit 570, and a display screen 580. The processing unit 530 can be a processor, and the processing unit 530 is electrically connected to the heating element 540, the detecting unit 550, the memory unit 560, the input unit 570, and the fan device 1000. The heating element 540 can be a wafer, such as a display chip or a processor. The heating element 540 generates heat after being activated, and thus the heating element 540 can also be a heat source. The detecting unit 550 can be a thermal sensor for detecting the temperature inside the casing 510 or the heating element 540. The memory unit 560 can be a memory, and the memory unit 560 can store a control program 561. The input unit 570 can be a keyboard or a mouse, and the input unit 570 is provided with a dust button 571. The display screen 580 can be a liquid crystal screen and can display a row of dust objects 581, which are displayed on the display screen 580 and displayed as an image.

PNAI-AC-0006-TWXX/0814-A42746TW-F 201226718 Please refer to FIG. 9 is a flow chart of the steps of the first embodiment of the dust discharging method of the electronic device 500 of the present invention, and please refer to FIG. 1 together with Figure 8. First, when the electronic device 500 is started, since the heating element 540 of the electronic device 500 starts to generate heat, the processing unit 530 can control the impeller 200 of the fan device 1000 to rotate in the heat dissipation direction D1, and the dustproof door 430 of the fan device 1000 is located in a closed state. The position (for example, as shown in Fig. 1, the dustproof door 430 is attached to the dust collecting port 410, or is closed to the communication port 113 as shown in Fig. 5). Therefore, the airflow flows out through the heat dissipation port 112 of the fan unit 1000 (step S101). Then, the processing unit 530 can determine whether a dust emission signal is received (step S103). After the processing unit 530 receives the dust emission signal, the control impeller 200 is reversed, that is, rotated in the dust removing direction D2, and the fan device 1000 is caused. The dustproof door 430 is moved to an open position (for example, as shown in FIG. 3, the dustproof door 430 is closed to the exhaust port 420, or as shown in FIG. 6, the dustproof door 430 is away from the communication port 113) so that The airflow causes the dust inside the fan unit 1000 to be discharged through the dust exhaust port 121 of the fan unit 1000 (step S105). The aforementioned dust exhaust signal can be generated under the following four conditions. The first detecting unit 550 detects the temperature inside the casing 510 of the electronic device 500. When the temperature inside the casing 510 is greater than a set temperature, the detecting unit 550 transmits the dusting signal to the processing unit 530. The second type is that the temperature of the heating element 540 is detected by the detecting unit 550. When the temperature of the heating element 540 is greater than a set temperature, the detecting unit 550 transmits the dusting signal to the processing list.

PN AI-AC-0006-TWXX/0814-A42746TW-F 201226718 元530. For example, when the set temperature is 70 degrees and the temperature detected by the detecting unit 550 is 75 degrees, the detecting unit 550 transmits a dust signal to the processing unit 530. In addition, the set temperature can be controlled. Program 561 changes. Therefore, the user does not need to perform other actions, and the fan unit 1000 can automatically remove the internal dust according to the setting, thereby improving the convenience of use. The third type is that when the dust-removing button 571 is pressed and braked, the dust-discharging signal is transmitted to the processing unit 530. For example, the input unit 570 is a keyboard, and the dust-removing button 571 is disposed on the keyboard, when the user feels the fan. When the device 1000 needs to be dusted, the dust button 571 can be pressed. The fourth type is that when the dust-discharging object 581 displayed on the display screen 580 is clicked, the dust-discharging signal is transmitted to the processing unit 530. For example, when the user feels that the fan device 1000 needs to be dust-discharged, the mouse can be utilized. The cursor on the moving screen selects the dusting object 581, and the dusting object 581 is displayed on the display screen 580 as an image. Therefore, the fan device 1000 can be controlled to remove the dust inside the fan by simply pressing a dust button 571 or clicking a dusting member 581, thereby improving the convenience of use. The above four kinds of dust-extracting signal generation conditions may be adopted in any one of them, or two or more types may be used at the same time. Thereafter, the control program 561 can transmit a heat dissipation signal to the processing unit 530 after a predetermined time (step S107). For example, the impeller 200 rotates 5000 revolutions per minute along the dust discharge direction D2, and the predetermined time can be set to 10 seconds. The impeller 200 rotates 3000 revolutions per minute along the dust discharge direction D2, and the predetermined time can be set to 20 seconds, and the predetermined time and the rotation speed of the impeller 200 along the dust discharge direction D2.

PNAI-AC-0006-TWXX/0814-A42746TW-F 201226718 can also be set via the control program 561. After receiving the heat dissipation signal, the processing unit 530 can return to step S101, the impeller 200 rotates along the heat dissipation direction D1, and the dust door 430 returns to the closed position. 10 is a flow chart showing the steps of the second embodiment of the dust discharging method of the electronic device 500 of the present invention, and please refer to FIG. 1 and FIG. 8 together. The difference from the first embodiment is that when the electronic device 500 is turned on, or is activated via a sleep mode, the dust-discharge signal is transmitted to the processing unit 530 via the control program 561 (step S201). Thereafter, after the processing unit 530 receives the dust emission signal, the processing unit 530 controls the impeller 200 of the fan device 1000 to rotate in the dust removing direction D2, and moves the dust door 430 to the open position (step S203). After the impeller 200 is rotated in the dust discharge direction D2 for a predetermined time, the control mode 561 can transmit a heat dissipation signal to the processing unit 530 to control the impeller 200 to rotate in a heat dissipation direction D1 (step S205). Thereafter, the control program 561 can transmit the dusting signal to the processing unit 530 after every interval (step S207). After receiving the heat dissipation signal, the processing unit 530 can return to step S2 (H, rotate the impeller 200 along the heat dissipation direction D1, and return the dust door 430 to the open position. Therefore, the user does not need to perform the operation in this embodiment. In other actions, the fan device 1000 can automatically remove the internal dust according to the setting, and the convenience in use can be improved. It should be noted that the first embodiment and the second embodiment of the dust discharging method of the electronic device 500 are mutually The first embodiment and the second embodiment can be simultaneously implemented on the electronic device 500 without conflicting. The present invention is disclosed in the above embodiments in various embodiments, but it is merely an example.

PN AI-AC-0006-TWXX/0814-A42746TW-F 13 201226718 The test is not intended to limit the scope of the present invention, and anyone skilled in the art can make some changes without departing from the spirit and scope of the present invention. Change and retouch. The above-described embodiments are not intended to limit the scope of the invention, and the scope of the invention is defined by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a first embodiment of a fan apparatus having a dust exhausting mechanism of the present invention, wherein an impeller is rotated in a heat dissipating direction; and FIG. 2 is a fan having a dust removing mechanism of the present invention. A side view of the first embodiment of the apparatus, wherein the impeller is rotated in a heat dissipating direction; and FIG. 3 is a perspective view of the first embodiment of the fan apparatus having the dust exhausting mechanism of the present invention, wherein the impeller is protected against dust 4 is a side view of a first embodiment of a fan apparatus having a dust exhausting mechanism of the present invention, wherein the impeller is rotated in a dustproof direction; and FIG. 5 is a fan apparatus having a dust exhausting mechanism of the present invention a perspective view of a second embodiment, wherein the impeller is rotated in a heat dissipating direction; and FIG. 6 is a perspective view of a second embodiment of the fan device having a dust exhausting mechanism of the present invention, wherein the impeller is rotated in a dustproof direction; Figure 7 is a view showing the state of use of the fan device having the dust-discharging mechanism of the present invention installed in an electronic device; Figure 8 is the work of the electronic device having the dust-discharging system of the present invention A block diagram, Fig. 9 embodiment of the system of the first step of a flowchart of a method embodiment of the dust discharge of the electronic apparatus of the present invention; and FIG. 10, the solid line s second dust discharge method of the electronic apparatus of the present invention

PNAI-AC-0006-TWXX/0814-A42746TW-F 14 201226718 Flow chart of the steps of the example. [Main component symbol description] [The present invention] Fan device 1000 having a dust discharge mechanism Housing 100 Main body portion 110 Air inlet 111 • Heat dissipation port 112 Communication port 113 Channel portion 120 Dust outlet 121 Impeller 200 Hub 210 Fan blade 220 Heat sink unit 300 _ dust box 400 dust collection port 410 exhaust port 420 ' exhaust filter 421 dust door 430 dust filter 431 electronic equipment 500 housing 510 motherboard 520

PNAI-AC-0006-TWXX/0814-A42746TW-F 201226718 Processing unit 530 Heating element 540 Memory unit 560 Control program 561 Input unit 570 Dust button 571 Display screen 580 Dust off object 581 Heat dissipation direction D1 Dust direction · D2

PN AI-AC-0006-TWXX/0814-A42746TW-F

Claims (1)

201226718 VII 1. Patent application scope: The housing is provided with a dust exhaust port, a "heat dissipation port and an air inlet"; f has a fan device for discharging money, including: placed in the casing 'and selectively along - The heat dissipation direction or the 疋/port is rotated in a dust direction; the dish '6 has a dust collecting port and a venting port', and the dust collecting port communicates with the dust discharging port; wherein when the impeller rotates along the heat dissipation direction, The air flow enters through the air inlet: and flows out from the heat dissipation port. When the impeller rotates in the dust discharge direction, the L' portion of the airflow enters from the air inlet and flows out from the air outlet, so that the moving portion is adjacent to the air inlet Dust from the vent to the inside of the dust box. .J,: "The fan of the dust-discharging mechanism described in the first item of the above-mentioned item, and the impeller is a centrifugal impeller. 3. The application of the fan having the dust-discharging mechanism according to the first aspect of the patent scope In the assembly, the impeller includes a hub and a plurality of fan blades, and the fan blades are radially extended from the hub and extend outward in a spiral shape. Waste Wanmen 4. = Patent application scope! In the fan of the dust-discharging mechanism, wherein the dust box further includes a dust-proof door, when the impeller rotates in the direction of the divergence, the dust-proof door is closed to the dust collecting port' when the impeller When the dust is rotated in the dust discharge direction, the dustproof door is attached to the exhaust port. 5. A fan apparatus having a dust exhausting mechanism according to claim 4, wherein the dustproof door is provided with a dust filter screen, and the exhaust port is an exhaust filter. Pnai-ac-o〇〇6.twxx/〇8I4A42746twf 17 201226718 The application of the dust collector with the dust-discharging mechanism described in the item (4)帛] is included in the dust collection, and includes an exhaust filter. A strainer is disposed at the exhaust port. 7.=Applicable to the fan assembly with the dust-discharging mechanism according to item 6 of the scope of the patent application, the "middle dust box of the middle 4 further includes a dust-proof door, and the dust-proof door is disposed in the dust collecting box, and the impeller rotates along the heat-dissipating direction. When the dustproof door is closed to the dust collecting port, the fan device having the dust discharging mechanism described in the above-mentioned patent scope is further characterized in that: the housing further comprises: a body portion provided with the heat dissipation The port and the impeller; the channel is connected to the body portion, and the channel portion is disposed away from the body of the body P. The channel portion and the body portion communicate with each other to provide a communication port. 9. The fan device of claim 8, wherein the dustproof door is disposed in the body portion, and the dust door is closed to the communication when the impeller rotates in the heat dissipation direction. A fan device having a dust exhausting mechanism according to claim 8, wherein the dustproof door is disposed in the passage portion, and the dustproof door is closed when the impeller rotates in the heat dissipation direction. In the dust outlet. π·If you apply for a patent The fan device of the present invention, wherein the dust collecting port and the exhaust port are located on the same side of the dust collecting box. 12. The dust removing mechanism according to claim 1 The fan device of the 5th dust collecting port and the exhaust port are located on the side of the dust box relative to the PNAI'AC'〇〇06-TWXX/〇814-A42746TW-F 201226718. The dust discharging method of the sub-device, The method includes the following steps: (8) After receiving a dust signal, the control unit controls the fan device Rotating in the dust-discharging direction and making the dust-proofing-opening position of the fan device such that an air flow causes dust inside the fan device to be discharged through the dust outlet of the fan device; and (b) the impeller rotates in the dust-discharging direction After a predetermined period of time, the impeller is controlled to rotate along the direction of heat dissipation, and the dustproof door is located at a position, and the airflow flows out through the heat dissipation port of the fan device. 14. The electronic device according to claim 13 The dust exhausting method, further comprising a step (al) before the step (4), wherein the impeller system for controlling the wind plume device rotates along the heat dissipating direction, and the dustproof 1 of the fan device is located at the closed position of the sea, It flows out through the heat dissipation port of the fan device. 15. The method for dusting an electronic device according to claim 14, wherein after the step (al), the temperature inside the electronic device is detected by a detecting unit, when the temperature inside the electronic device is greater than The detecting unit transmits the dusting signal to the processing unit when the temperature is set. 16. The method of dusting an electronic device according to claim 14, wherein after the step (al), the detecting unit detects the degree of a heating element, and when the temperature of the heating element is greater than a setting At the time of temperature, the detecting unit transmits the dusting signal to the processing unit. 17. The method of dusting an electronic device according to claim 14, wherein after the step (al), when the dust button of the electronic device is made PNAI-AC-0006-TWXX/0814-A42746TW- F 19 201226718 Time to transmit the dust signal to the processing unit. 18. The method of dusting an electronic device according to claim 14, wherein after the step (al), when a dust-collecting item displayed on the display screen of the electronic device is selected by dusting, The dusting signal is transmitted to the processing unit. And the method of dusting the electronic device according to claim 13, wherein the step (a) further comprises: transmitting the dust signal at the interval every time via a control program. unit. 2. The method for dusting an electronic device according to claim 13 of the patent application, the step (a) further comprising: transmitting the dust signal via a control program when the electronic device is activated via a sleep mode In the processing unit. The method for dusting an electronic device according to claim 13 , wherein the step (a) further comprises: when the electronic device is turned on, transmitting the dusting signal to the processing unit via a control program. S PNAI-AC-0006-τννχχ细4_A42746TW_F 20