TWI716971B - Fan apparatus and fan-controlling method - Google Patents

Abstract

A fan apparatus includes a microcontroller, a plurality of light source units, a motor driver and a motor. The microcontroller is electrically connected to the light source units and the motor driver. The motor is electrically connected to the motor driver. The microcontroller generates a motor rotating speed signal based on a periodic on-off frequency of the light source units. The motor rotating speed signal defines a driving motor rotating speed value of the motor. The microcontroller sends the motor rotating speed signal to the motor driver after the microcontroller generates the motor rotating speed signal. The motor driver drives the motor to rotate based on the motor rotating speed signal after the motor driver receives the motor rotating speed signal, so that a rotating speed of the motor achieves the driving motor rotating speed value of the motor defined by the motor rotating speed signal.

Description

Fan device and fan control method

The present invention relates to a device and a control method, particularly a fan device and a fan control method.

The fan device is a very common electronic device, which can reduce the temperature of the electronic product, so the fan device is very important.

However, the rotation speed of the motor of the current fan device is not related to the light source. For example, the brighter the light source, the faster the rotation speed of the motor of the fan device, or for example, to generate special visual effects, which is a pity.

To solve the above-mentioned problems, the object of the present invention is to provide a fan device.

In order to solve the above problems, another object of the present invention is to provide a fan control method.

In order to achieve the above object of the present invention, the fan device of the present invention includes: a microcontroller; a plurality of light source units, the light source units are electrically connected to the microcontroller; a motor driver, the motor driver is electrically connected to the Microcontroller; and a motor, the motor is electrically connected to the motor driver. According to the periodic turn-on and turn-off frequency of one of the light source units, the microcontroller generates a motor speed Signal; the motor speed signal defines a driving motor speed value of the motor; after the microcontroller generates the motor speed signal, the microcontroller transmits the motor speed signal to the motor driver; the motor driver receives the motor After the rotation speed signal, the motor driver drives the motor to rotate according to the motor rotation speed signal so that the rotation speed of the motor reaches the driving motor rotation speed value of the motor defined by the motor rotation speed signal.

In order to achieve the above-mentioned yet another objective of the present invention, the fan control method of the present invention includes: a microcontroller generates a motor speed signal according to a periodic turn-on and turn-off frequency of one of the light source units, wherein the motor speed signal defines a motor speed A driving motor speed value; after the microcontroller generates the motor speed signal, the microcontroller transmits the motor speed signal to a motor driver; and after the motor driver receives the motor speed signal, the motor driver according to the The motor speed signal drives the motor to rotate so that the motor speed reaches the driving motor speed value of the motor defined by the motor speed signal.

The effect of the present invention is that the rotation speed of the motor of the fan device is related to the light source, for example, the brighter the light source, the faster the rotation speed of the motor of the fan device, or for example, to generate special visual effects.

In order to further understand the technology, means and effects of the present invention to achieve the intended purpose, please refer to the following detailed description and drawings of the present invention. I believe that the purpose, features and characteristics of the present invention can be obtained in depth and detail. It is understood that, however, the accompanying drawings are only provided for reference and illustration, and are not intended to limit the present invention.

10: Fan device

102: Microcontroller

104: light source unit

106: motor driver

108: Motor

110: Motor speed signal

112: Temperature sensor

114: temperature sensing signal

116: light source switching frequency control unit

117: light source switching frequency control signal

118: Fan unit

120: body

122: fan blade

124: Base

126: Printed Circuit Board

A1: The first visual effect

A2: Second visual effect

S02~18: steps

FIG. 1 is a block diagram of the first embodiment of the fan device of the present invention.

Fig. 2 is a block diagram of a second embodiment of the fan device of the present invention.

Fig. 3 is a block diagram of the third embodiment of the fan device of the present invention.

Fig. 4 is a block diagram of a fourth embodiment of the fan device of the present invention.

Figure 5 is an exploded view of the fan unit of the present invention.

Figure 6 is a top view of the fan unit of the present invention.

Fig. 7 is a schematic diagram of the first visual effect of the present invention.

FIG. 8 is a schematic diagram of the second visual effect of the present invention.

Figure 9 is a flowchart of the fan control method of the present invention.

FIG. 10 is a partial flowchart of the first embodiment of the fan control method of the present invention.

11 is a partial flowchart of the second embodiment of the fan control method of the present invention.

In this disclosure, many specific details are provided to provide a thorough understanding of the specific embodiments of the present invention; however, those skilled in the art should know that in the absence of one or more of these specific details, The present invention can be practiced; in other cases, well-known details are not shown or described to avoid obscuring the main technical features of the present invention. The technical content and detailed description of the present invention are described as follows in conjunction with the drawings: Please refer to FIG. 1, which is a block diagram of the first embodiment of the fan device of the present invention. The fan device 10 of the present invention includes a microcontroller 102, a plurality of light source units 104, a motor driver 106 and a motor 108; these components are electrically connected to each other. The microcontroller 102 can also be called a processor; the light source units 104 can be, for example, but the invention is not limited to a plurality of light-emitting diodes. According to a periodic turn-on and turn-off frequency of one of the light source units 104, the microcontroller 102 generates a motor speed signal 110; the motor speed signal 110 defines a driving motor speed value of the motor 108; and the microcontroller 102 generates the After the motor speed signal 110, the microcontroller 102 transmits the motor speed signal 110 to the motor driver 106; after the motor driver 106 receives the motor speed signal 110, the motor driver 106 responds to the horse The rotational speed signal 110 drives the motor 108 to rotate so that the rotational speed of the motor 108 reaches the driving motor rotational speed value of the motor 108 defined by the motor rotational speed signal 110.

In other words, the present invention first determines or judges the periodic opening and closing frequencies of the light source units 104, and then drives and determines the rotation speed of the motor 108 according to the periodic opening and closing frequencies of the light source units 104, wherein The formula of the rotational speed of the motor 108 is related to the periodic turn-on and turn-off frequency of the light source units 104, which will be described in detail later. That is, the present invention does not first determine the rotation speed of the motor 108, and then drive and determine the periodic on and off frequency of the light source units 104 according to the rotation speed of the motor 108. In a specific embodiment of the present invention, the higher the periodic opening and closing frequency of the light source units 104, the faster the speed of driving the motor 108 accordingly; the higher the periodic opening and closing frequency of the light source units 104 If it is low, the rotation speed of driving the motor 108 accordingly becomes slower.

The present invention may include multiple methods for determining or judging the periodic opening and closing frequencies of the light source units 104; for example, in a specific embodiment of the present invention, the periodic opening and closing frequencies of the light source units 104 are included In a notification signal, the light source units 104 are sent to the microcontroller 102, so that the microcontroller 102 knows the periodic turning on and off frequencies of the light source units 104; or, the microcontroller 102 detects The periodic turn-on and turn-off frequency of the light source units 104 are measured to obtain the periodic turn-on and turn-off frequency of the light source units 104. Other modes of the present invention can be shown in FIG. 2 or FIG. 3, and the details are as follows.

Furthermore, please refer to FIG. 2, which is a block diagram of the second embodiment of the fan device of the present invention; the components shown in FIG. 2 are the same as those shown in FIG. 1, which is a succinct factor, so it will not be repeated here. Its narrative. The fan device 10 further includes a temperature sensor 112, and the temperature sensor 112 is electrically connected to the microcontroller 102. The temperature sensor 112 senses an ambient temperature to generate a temperature sensing signal 114; after the temperature sensor 112 generates the temperature sensing signal 114, the temperature sensor 112 transmits the temperature sensing signal 114 to The microcontroller 102; after the microcontroller 102 receives the temperature sensing signal 114, the microcontroller 102 determines the periodic turn on and off of the light source units 104 according to the temperature sensing signal 114 The microcontroller 102 drives the light source units 104 to periodically turn on and off according to the periodic turn-on and turn-off frequency of the light source units 104. In an embodiment of the present invention, the higher the ambient temperature, the higher the periodic turn-on and turn-off frequency of the micro-controller 102 driving the light source units 104, and then the faster the rotation speed of the motor 108 is driven accordingly. The lower the ambient temperature, the first the microcontroller 102 drives the light source units 104 to periodically turn on and off the frequency of the lower, and then drive the motor 108 slower.

Please refer to FIG. 3, which is a block diagram of the third embodiment of the fan device of the present invention; the components shown in FIG. 3 are the same as those shown in FIG. 1, which is a concise factor, so the description will not be repeated here. The fan device 10 further includes a light source switching frequency control unit 116, and the light source switching frequency control unit 116 is electrically connected to the microcontroller 102. The light source switching frequency control unit 116 can also be referred to as the main system, that is, the user end. Furthermore, the light source switching frequency control unit 116 generates a light source switching frequency control signal 117; after the light source switching frequency control unit 116 generates the light source switching frequency control signal 117, the light source switching frequency control unit 116 transmits The light source switching frequency control signal 117 is sent to the microcontroller 102; after the microcontroller 102 receives the light source switching frequency control signal 117, the microcontroller 102 determines the light source switching frequency control signal 117 The light source unit 104 is periodically turned on and off, and the microcontroller 102 drives the light source units 104 to periodically turn on and off according to the periodic turn on and off frequency of the light source units 104. The light source switching frequency control unit 116 can be, for example, but the present invention is not limited to a motherboard, a central processing unit, a graphics processor or an application APP of a smart phone.

Please refer to FIG. 4, which is a block diagram of the fourth embodiment of the fan device of the present invention; the components shown in FIG. 4 are the same as the components shown in FIG. 1, which is a concise factor, so the description will not be repeated here. The fan device 10 further includes a fan unit 118; the fan unit 118 includes a body 120 and a plurality of fan blades 122; the above-mentioned components are coupled to each other. When the motor 108 rotates, the motor 108 drives the main body 120 and the fan blades 122 to rotate. The aforementioned formula for the rotational speed of the motor 108 is: the drive of the motor 108 The rotational speed value of the motor is equal to sixty times the periodic on and off frequency of the light source units 104 divided by one of the fan blades 122 times a natural number.

Please refer to FIG. 5, which is an exploded view of the fan unit of the present invention; the components shown in FIG. 5 are the same as those shown in FIG. The fan unit 118 further includes a base 124 and a printed circuit board 126; the base 124 is coupled to the body 120; the printed circuit board 126 is coupled to the base 124; the light source units 104 are disposed on the printed circuit board 124 on. When the motor 108 as shown in FIG. 4 drives the main body 120 and the fan blades 122 to rotate, the base 124 and the printed circuit board 126 are fixed relative to the main body 120 and the fan blades 122 (also That is, it does not rotate with the main body 120 and the fan blades 122).

Please refer to FIG. 6, which is a top view of the fan unit of the present invention; the light-emitting parts of the light source units 104 need to face the notches of the fan unit 118. Please refer to FIG. 7, which is a schematic diagram of the first visual effect of the present invention; please refer to FIG. 8, which is a schematic diagram of the second visual effect of the present invention; the rotation speed of the fan blades 122 (that is, the aforementioned motor The rotation speed of 108) can achieve different visual effects in accordance with the periodic opening and closing frequencies of the light source units 104. As shown in FIG. 7, the first visual effect A1 is that the inner ring presents a gear light effect; as shown in FIG. 8, the second visual effect A2 is that the condition under the fan blades 122 can be clearly seen through the visual persistence; Wherein, the rotation speed of the fan blades 122 shown in FIG. 8 is greater than the rotation speed of the fan blades 122 shown in FIG. 7.

Please refer to FIG. 9, which is a flowchart of the fan control method of the present invention. A fan control method of the present invention includes the following steps:

Step S02: According to the periodic turn-on and turn-off frequency of one of the plurality of light source units, a microcontroller generates a motor speed signal, wherein the motor speed signal defines a driving motor speed value of a motor.

Step S04: After the microcontroller generates the motor speed signal, the microcontroller transmits the motor speed signal to a motor driver.

Step S06: After the motor driver receives the motor speed signal, the motor driver drives the motor to rotate according to the motor speed signal so that the motor speed reaches the driving motor speed value of the motor defined by the motor speed signal . The light source units are plural light emitting diodes.

The rotational speed value of the driving motor of the motor is equal to sixty times the periodic on and off frequency of the light source units divided by one of the plural fan blades times a natural number.

Please refer to FIG. 10, which is a partial flowchart of the first embodiment of the fan control method of the present invention. The fan control method further includes the following steps:

Step S08: A temperature sensor senses an ambient temperature to generate a temperature sensing signal.

Step S10: After the temperature sensor generates the temperature sensing signal, the temperature sensor transmits the temperature sensing signal to the microcontroller.

Step S12: After the microcontroller receives the temperature sensing signal, the microcontroller determines the periodic turn-on and turn-off frequency of the light source units according to the temperature sensing signal, and the microcontroller according to the light source units The periodic turn-on and turn-off frequency drives the light source units to turn on and off periodically. Next, the fan control method returns to step S02 in FIG. 9.

Please refer to FIG. 11, which is a partial flowchart of the second embodiment of the fan control method of the present invention. The fan control method further includes the following steps:

Step S14: A light source switching frequency control unit generates a light source switching frequency control signal.

Step S16: After the light source switching frequency control unit generates the light source switching frequency control signal, the light source switching frequency control unit transmits the light source switching frequency control signal to the microcontroller.

Step S18: After the microcontroller receives the light source switching frequency control signal, the microcontroller determines the periodic opening and closing of the light source units according to the light source switching frequency control signal And the microcontroller drives the light source units to periodically turn on and off according to the periodic turn-on and turn-off frequency of the light source units. Next, the fan control method returns to step S02 in FIG. 9.

The effect of the present invention is that the rotation speed of the motor of the fan device is related to the light source, for example, the brighter the light source, the faster the rotation speed of the motor of the fan device, or for example, to generate special visual effects.

However, the above are only preferred embodiments of the present invention, and should not limit the scope of implementation of the present invention, that is, all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention shall still be covered by the patent of the present invention The scope of the scope intended to protect. The present invention can also have various other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications are all It should belong to the protection scope of the attached patent application of the present invention. In summary, when it is known that the present invention has industrial applicability, novelty and advancement, and the structure of the present invention has not been seen in similar products and publicly used, it fully complies with the requirements of an invention patent application, and the application is filed in accordance with the Patent Law.

10: Fan device

102: Microcontroller

104: light source unit

106: motor driver

108: Motor

110: Motor speed signal

Claims (10)

A fan device includes: a microcontroller; a plurality of light source units, the light source units are electrically connected to the microcontroller; a motor driver, the motor driver is electrically connected to the microcontroller; and a motor, the The motor is electrically connected to the motor driver, wherein the microcontroller generates a motor speed signal according to the periodic turn-on and turn-off frequency of one of the light source units; the motor speed signal defines the speed value of a driving motor of the motor; After the controller generates the motor speed signal, the microcontroller transmits the motor speed signal to the motor driver; after the motor driver receives the motor speed signal, the motor driver drives the motor to rotate according to the motor speed signal to make The rotation speed of the motor reaches the rotation speed value of the driving motor of the motor defined by the motor rotation speed signal; wherein the microcontroller detects the periodic on and off frequency of the light source units to learn the periodicity of the light source units Turn on and off frequency. As for the fan device described in item 1 of the scope of patent application, the light source units are plural light emitting diodes. The fan device described in item 1 of the scope of patent application further includes: a light source switching frequency control unit, and the light source switching frequency control unit is electrically connected to the microcontroller. For the fan device described in item 3 of the scope of patent application, the light source switching frequency control unit is a motherboard, a central processing unit, a graphics processor or a smart phone. The fan device described in item 1 of the scope of the patent application further includes: a fan unit coupled to the motor, Wherein the fan unit includes: a body, the body is coupled to the motor; and a plurality of fan blades, the fan blades are coupled to the body, wherein when the motor rotates, the motor drives the body and the fan blades Rotation; The driving motor speed value of the motor is equal to sixty times the periodic opening and closing frequencies of the light source units divided by one of the fan blades times a natural number. According to the fan device described in claim 5, the fan unit further includes: a base coupled to the main body. According to the fan device described in claim 6, wherein the fan unit further comprises: a printed circuit board, the printed circuit board is coupled to the base, and the light source units are arranged on the printed circuit board; When the motor drives the main body and the fan blades to rotate, the base and the printed circuit board are fixed relative to the main body and the fan blades. A fan control method includes: a micro-controller generates a motor speed signal according to a periodic turn-on and turn-off frequency of one of a plurality of light source units, wherein the motor speed signal defines a driving motor speed value of a motor, wherein the light source units Is electrically connected to the microcontroller; after the microcontroller generates the motor speed signal, the microcontroller transmits the motor speed signal to a motor driver; and after the motor driver receives the motor speed signal, the motor The driver drives the motor to rotate according to the motor speed signal, so that the motor speed reaches the driving motor speed value of the motor defined by the motor speed signal, wherein the microcontroller detects the periodic turning on of the light source units Turn off frequency to know the periodic turn-on and turn-off frequency of the light source units. The fan control method described in item 8 of the scope of patent application, wherein the light source units are plural light-emitting diodes. The fan control method described in item 8 of the scope of patent application, wherein the rotational speed value of the driving motor of the motor is equal to sixty times the periodic on and off frequency of the light source units divided by one of the plural fan blades times A natural number.

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