TW202009381A - Light emitting fan module, light emitting fan unit, and light emission control method - Google Patents

Abstract

A light emitting fan module including a fan body, a light emitting element, and a control unit is provided. The fan body has a rotation period information. The light emitting element is disposed on the fan body. When the fan body is rotating, the moving track of the light emitting element forms a closed region which has a plurality of sections. The control unit is electrically connected to the light emitting element. The control unit generates a plurality of lighting effect control signals based on the rotation period information. When the light emitting elements of the fan body pass through the sections, the control unit transmits the corresponding lighting effect control signals to the light emitting elements sequentially to form a variety of lighting patterns. In addition, a light emitting fan unit and a light emission control method are also provided.

Description

Light-emitting fan module, light-emitting fan unit and light-emitting control method

The invention relates to a fan module, a fan unit and a control method, and in particular to a light-emitting fan module, a light-emitting fan unit and a light-emitting control method.

Light-emitting diodes have advantages such as long life, small size, high shock resistance, low heat generation, and low power consumption, so they have been widely used as indicators or light sources in households and various devices. In recent years, light-emitting diodes have developed towards high power, so their application fields have been expanded to include light sources for road lighting, large outdoor signage, traffic signal lights, or decorative lamps.

However, the current decorative lighting effect used in electronic devices such as desktop computers requires the use of multiple light-emitting diodes and a corresponding controller to form a full-color lighting effect. Moreover, the changes in the lighting effect formed thereby are limited, and the product cost is relatively high.

The invention provides a luminous fan module, which can provide various lighting effects and has low cost.

The invention provides a luminous fan unit, which can provide various lighting effects and has low cost.

The invention provides a light emission control method, which can be used to provide various lighting effects.

A light-emitting fan module of the present invention includes a fan body, a light-emitting element, and a control unit. The fan body has rotation cycle information. The light emitting element is arranged on the fan body. When the fan body rotates, the movement trajectory of the light-emitting element forms a closed area, and the closed area has multiple partitions. The control unit is electrically connected to the light emitting element. The control unit generates a plurality of lighting effect control signals according to the rotation cycle information of the fan body, and these lighting effect control signals correspond to the partitions of the enclosed area, and when the light emitting element passes through the partitions of the enclosed area, the control unit sequentially transmits the corresponding The lighting effect control signal is sent to the light-emitting element to form a variety of light-emitting patterns on the partitions of the enclosed area.

A light-emitting fan unit of the present invention includes a plurality of the aforementioned light-emitting fan modules, wherein the light-emitting fan modules have light-emitting patterns corresponding to each other, so that the light-emitting fan modules can form multiple composite light-emitting patterns.

The light-emitting control method of the present invention is suitable for at least one light-emitting fan module, wherein each light-emitting fan module includes a fan and a light-emitting element disposed on the fan body, and the light-emitting control method includes the following steps. A plurality of lighting effect control signals are generated according to a rotation period information of the fan body, wherein when the fan body rotates, the moving trajectory of the light-emitting element forms a closed area, the closed area has a plurality of partitions, and these lighting effect control signals are respectively connected to the closed area Corresponding to these partitions. When the light-emitting element passes through the partitions of the enclosed area, corresponding light-effect control signals are sequentially transmitted to the light-emitting element to form multiple light-emitting modes on the partitions of the enclosed area.

Based on the above, the light-emitting fan module and the light-emitting fan unit of the embodiment of the present invention generate a plurality of lighting effect control signals by acquiring the rotation cycle information of the fan body. In this way, by using the afterimage of the light-emitting element, a plurality of partitions can be generated on the moving trajectory of the light-emitting element, and each partition can display different lighting effects, thereby forming multiple light-emitting modes. In addition, the light emitting fan module and the light emitting fan unit of the embodiment of the present invention can further obtain the position information of the light emitting element through the configuration of the Hall element, so that different light emitting light fan modules can be matched with each other, thereby forming a variety of composite Glowing pattern. In addition, the light emission control method of the embodiment of the present invention can easily control the light emitting fan module and the light emitting fan unit, so that the light emitting fan module and the light emitting fan unit have multiple light emitting modes or multiple compound light emitting modes.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the embodiments are specifically described below in conjunction with the accompanying drawings for detailed description as follows.

FIG. 1A is a block diagram of a light-emitting fan module according to an embodiment of the invention. FIG. 1B is a schematic view of the appearance of the light-emitting fan module of FIG. 1A. FIG. 1C is a schematic diagram of the connection between the connector of FIG. 1A and the fan body. FIG. 1D is a waveform diagram of rotation cycle information when the fan body of FIG. 1A rotates. FIG. 1E is a schematic diagram of a rotor of the light-emitting fan module of FIG. 1A. FIG. 1F is a schematic diagram of the stator of the light-emitting fan module of FIG. 1A. FIG. 1G is a schematic diagram of a movement locus formed by the light-emitting element of FIG. 1A when the fan body rotates. 1A and 1B, the light-emitting fan module 100 is suitable for an electronic device. The light-emitting fan module 100 includes a fan body 110, a light-emitting element 120, and a control unit 130. For example, in this embodiment, the electronic device may be a desktop computer, and the light-emitting fan module 100 may be installed on a chassis (not shown) of the electronic device. In addition, in this embodiment, the light-emitting element 120 is a full-color light-emitting diode, and the control unit 130 is a microcontroller (Micro Controller Unit, MCU), but the invention is not limited thereto.

Specifically, as shown in FIG. 1B, in this embodiment, the light-emitting fan module 100 further includes a stator 140 and a rotor 150. The rotor 150 is disposed on the stator 140 and can freely rotate relative to the stator 140. In this way, when the rotor 150 rotates, it will drive the fan body 110 to rotate, so that the fan body 110 generates a speed signal.

Further, as shown in FIGS. 1A, 1C, and 1D, in this embodiment, the fan body 110 has multiple pins PN, and the light-emitting fan module 100 further includes a connector 160 electrically connected to the Control unit 130. As shown in FIG. 1C, in this embodiment, the connector 160 has a rotation speed detection pin FG, and one of the pin positions PN of the fan body 110 is electrically connected to the rotation speed detection pin FG. As such, as shown in FIGS. 1A and 1D, in this embodiment, the control unit 130 can obtain the electrical signal ES1 of the rotation speed detection pin FG, and obtain the fan body 110 according to the electrical signal ES1 of the rotation speed detection pin FG A rotation speed signal to obtain the rotation cycle information of the fan body 110.

For example, as shown in FIGS. 1E and 1F, in this embodiment, the light-emitting fan module 100 further includes a first magnetic element 170 and a first Hall element 180. In this embodiment, the first magnetic element 170 is disposed on the rotor 150, the first Hall element 180 is disposed on the stator 140, and is electrically connected to the rotation speed detection pin FG and the control unit 130. In this embodiment, the first magnetic element 170 may be, for example, a magnetic ring having multiple magnetic poles.

As such, when the fan body 110 rotates, the rotor 150 drives the first magnetic element 170 to rotate relative to the first Hall element 180. Since the first magnetic element 170 rotates relative to the first Hall element 180, the magnetic poles passing through the first Hall element 180 are also staggered. The first Hall element 180 accordingly outputs a signal with alternating high and low changes (ie, a rotation speed signal) to the rotation speed detection pin FG, thereby generating an electrical signal ES1 of the rotation speed detection pin FG. Thus, as shown in FIG. 1D, in this embodiment, the light-emitting fan module 100 can obtain the rotational speed signal of the fan body 110 by the electrical signal ES1 of the rotational speed detection pin FG, and thereby obtain The rotation cycle information of the fan body 110.

On the other hand, as shown in FIG. 1B, in this embodiment, the light emitting element 120 is disposed on the fan body 110, so, as shown in FIG. 1G, in this embodiment, when the fan body 110 rotates, the light emitting element 120 The moving trajectory of forms a closed area ER, and the closed area ER has a plurality of partitions SR1, SR2, ..., SRn.

The flow of how the light emitting fan module 100 enables the multiple zones SR1, SR2, ..., SRn of the enclosed area ER to have multiple light emitting modes will be further explained with reference to FIG. 2 below.

2 is a flowchart of a light emission control method according to an embodiment of the invention. For example, the light-emitting fan module 100 shown in FIG. 1A can be used to perform the light-emitting control method of FIG. 2 so that the light-emitting fan module 100 has multiple light-emitting modes, but the present invention is not limited thereto.

Specifically, as shown in FIGS. 1A and 2, the control unit 130 is electrically connected to the light-emitting element 120, and can be used to perform step S110 to generate a plurality of lighting effect control signals LC according to the rotation cycle information of the fan body 110, and these The lighting effect control signal LC corresponds to these partitions SR1, SR2, ..., SRn of the closed area ER, respectively. For example, after obtaining the rotation cycle information of the fan body 110, the control unit 130 can calculate the location of the light-emitting element 120 passing through the partitions SR1, SR2, ..., SRn according to the number requirements of the partitions SR1, SR2, ..., SRn It takes time. For example, if the rotation speed of the fan body 110 is 3600 revolutions per minute, and the number of zones SR1, SR2, ..., SRn is 8, so, the time for the light emitting element 120 to pass through each zone SR1, SR2, ..., SRn is 1/480 second. The control unit 130 can generate the corresponding light control signal LC accordingly.

Next, as shown in FIG. 2, the control unit 130 can perform step S120. When the light-emitting element 120 passes through the partitions SR1, SR2, ..., SRn of the enclosed area ER, the corresponding light-effect control signal LC is sequentially transmitted to the light-emitting element 120 . For example, these lighting effect control signals LC can control the light-emitting elements 120 to produce different light-emitting effects, for example, control the light-emitting elements 120 to display different colors in the partitions SR1~SRn, produce the effect of the marquee in the partitions SR1~SRn, and let the partition SR1 ~SRn produces gradient color effect, breathing light effect, flashing light effect...etc. In this way, the control unit 130 can control the light emitting element 120 to generate various lighting effects when passing through the partitions SR1, SR2, ..., SRn. And because of the principle of persistence of vision, the lighting effect control signal LC allows these lighting effects to appear in the human eye, as if they appear simultaneously or sequentially. In this way, as shown in FIGS. 1G and 2, step S130 can be completed, so that the light-emitting fan module 100 forms multiple light-emitting patterns on the partitions SR1, SR2,..., SRn of the enclosed area ER.

In the foregoing embodiment, the rotation cycle information of the fan body 110 is exemplified by the method obtained by the electrical signal ES1 of the rotation speed detection pin FG, but the invention is not limited thereto. In other embodiments, the rotation cycle information of the fan body 110 can also be obtained in other ways. In the following, some other embodiments will be cited as an illustration.

3A is a schematic diagram of a rotor of another light-emitting fan module according to an embodiment of the invention. 3B is a schematic diagram of a stator of another light-emitting fan module according to an embodiment of the invention. 3C is a block diagram of the light-emitting fan module of FIGS. 3A and 3B. 3A and 3B, the light emitting fan module 200 of this embodiment is similar to the light emitting fan module 100 of FIG. 1A, and the differences between the two are as follows. In this embodiment, the light-emitting fan module 200 further includes a second magnetic element 270 and a second Hall element 280. As shown in FIGS. 3A and 3B, in this embodiment, the second magnetic element 270 is disposed on the rotor 150, the second Hall element 280 is disposed on the stator 140, and is electrically connected to another rotation speed of the connector 160 Detect pin FG to output related signals. In this embodiment, the magnetic element 270 may be, for example, magnetic powder, magnetic stickers, or the like. For example, in this embodiment, the second magnetic element 270 is disposed as long as the fan body 110 rotates, the second hall element 280 can sense the second magnetic element 270 without disturbing the first hall The position of the element 180 is sufficient, and the invention is not limited thereto.

In this way, when the fan body 110 rotates, the rotor 150 drives the second magnetic element 270 to rotate relative to the second Hall element 280, so that the second Hall element 280 also outputs different waveform signals due to the change of the magnetic field to Another rotation speed detection pin FG of the connector 160 generates an electrical signal ES2. Thus, as shown in FIG. 3C, in this embodiment, the control unit 130 can also obtain the speed signal of the fan body 110 by detecting the electrical signal ES2 caused by the Hall element 280, and can also obtain Know the rotation cycle information of the fan body 110.

Moreover, in the present embodiment, the control unit 130 can further obtain the position information about the light emitting element 120 by the installation positions of the second magnetic element 270 and the second Hall element 280. The following will further explain with FIG. 4A, FIG. 4B and FIG. 4C.

Taking four partitions as an example, FIG. 4A is a schematic diagram of the change of the stop position of the light-emitting element of the light-emitting fan module of FIG. 3A before and after the rotation of the fan body, and FIG. 4B is a waveform diagram of the rotation cycle information when the fan body of FIG. 3A rotates. 4C is a schematic diagram of the movement locus formed by the light emitting element of the light emitting fan module of FIG. 3A when the fan body rotates. As shown in FIG. 4A, in this embodiment, since the stop position of the light emitting element 120 is different after each rotation, the position of each sub-area SR1, SR2, SR3, and SR4 is changed. Therefore, in order to fix the position of the light effect display of each light-emitting mode, the position information of the light-emitting element 120 must be obtained.

For example, in the case where the setting position of the second Hall element 280 is fixed and the relative position of the light emitting element 120 and the second magnetic element 270 is known, as long as the second magnetic element 270 is obtained through the second Hall element 280 The position information of the light-emitting device 120 can be obtained after the interval time.

Specifically, as shown in FIG. 4A, the control unit 130 takes the waveform change position when the magnetic element 270 passes the Hall element 280 as the reference time origin Ot, which corresponds to the position origin O of the light emitting element 120 at this time. In addition, the control unit 130 can obtain the time required for the light emitting element 120 to pass through the partitions SR1, SR2, SR3, and SR4 according to the number of partitions, and transmit the corresponding time in the time zones T1, T2, T3, and T4 corresponding to the foregoing partitions, respectively. The lighting effect control signal LC to the light emitting element 120.

In this way, as shown in FIG. 4B, the light emission starting position of the light emitting element 120 (ie, reference position origin O) and the light emission starting time point (ie, reference time origin Ot) can be controlled, and then various light emission modes can be controlled. The lighting effect display positions of the zones SR1, SR2, SR3, and SR4 of the lighting fan module 200 in each lighting mode can be fixed.

5A is a waveform diagram of rotation cycle information when each fan body of a light-emitting fan unit rotates according to an embodiment of the invention. 5B is a schematic diagram of the light-emitting fan unit of FIG. 5A. As shown in FIGS. 5A and 5B, in this embodiment, the light-emitting fan unit 300 includes a plurality of light-emitting fan modules 200a, 200b, and 200c, wherein the light-emitting fan modules 200a, 200b, and 200c correspond to each other in light-emitting mode. However, since the stop positions of the light-emitting elements of the light-emitting fan modules 200a, 200b, and 200c after rotation may be inconsistent, therefore, in this embodiment, the reference time origin of the light-emitting fan modules 200a, 200b, and 200c is Ot. When setting, the time difference at the waveform change of each light-emitting fan module 200a, 200b, 200c must be considered again.

For example, as shown in FIGS. 5A and 5B, the light-emitting elements of the light-emitting fan modules 200a, 200b, and 200c may have different stopping positions after the previous rotation. Therefore, after the rotation starts, the second magnetic The time point at which the element passes the second Hall element may also be inconsistent. The control unit 130 can set the waveform change position of the second magnetic element (not shown) of one of the light emitting fan modules 200a when passing the second Hall element (not shown) as the reference time origin Ot, which is equivalent to each light emission The origins of the reference positions of the fan modules 200a, 200b, and 200c are Oa, Ob, and Oc. Then, the interval time when the second magnetic element (not shown) of one of the light-emitting fan modules 200a passes the second Hall element (not shown). Moreover, the control unit 130 can be based on the time difference between the reference time origin Ot and the waveform change of each light emitting fan module 200a, 200b, 200c and the time required for each light emitting element to pass through these partitions SR1, SR2, ..., SRn, In this way, the corresponding lighting effect control signals LC are transmitted to the light-emitting elements in the time sections T1, T2, T3, and T4, respectively.

In this way, as shown in FIG. 5B, the light-emitting fan modules 200a, 200b, and 200c can achieve the effect of positioning and fixing the display position of the light effect of each light-emitting mode through the Hall element (not shown). When a plurality of light-emitting fan modules 200a, 200b, and 200c are operated together, by adjusting the light-emitting modes of these light-emitting fan modules 200a, 200b, and 200c, a combination of multiple compound light-emitting modes can be formed to meet various needs. Lighting decoration effect.

In summary, the light-emitting fan module and the light-emitting fan unit of the embodiment of the present invention generate a plurality of lighting effect control signals by acquiring the rotation cycle information of the fan body. In this way, by using the afterimage of the light-emitting element, a plurality of partitions can be generated on the moving trajectory of the light-emitting element, and each partition can display different lighting effects, thereby forming multiple light-emitting modes. In addition, the light-emitting fan module and the light-emitting fan unit of the embodiment of the present invention can further obtain the position information of the light-emitting element through the configuration of the Hall element, so that different light-emitting fan modules can be matched with each other, thereby forming a variety of composite lighting mode. In addition, the light emission control method of the embodiment of the present invention can easily control the light emitting fan module and the light emitting fan unit, so that the light emitting fan module and the light emitting fan unit have multiple light emitting modes or multiple compound light emitting modes.

Although the present invention has been disclosed as above with examples, it is not intended to limit the present invention. Any person with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be subject to the scope defined in the appended patent application.

100, 200, 200a, 200b, 200c‧Lighting fan module 110‧‧‧Fan body 120‧‧‧Lighting element 130‧‧‧Control unit 140‧‧‧Stator 150‧‧‧Rotor 160‧‧‧Connector 170‧‧‧First magnetic element 180‧‧‧First Hall element 270‧‧‧Second magnetic element 280‧‧‧Second Hall element 300‧‧‧Lighting fan unit ES1, ES2‧‧‧Electrical signal ER‧‧‧Closed area FG‧‧‧Speed detection pin LC‧‧‧Light effect control signal O, Oa, Ob, Oc‧‧‧‧Origin of position Ot‧‧‧Origin of time PN‧‧‧pin position SR1 SR2, SR3, SR4, SRn‧‧‧ Division S110, S120, S130‧‧‧ Step T1, T2, T3, T4‧‧‧

FIG. 1A is a block diagram of a light-emitting fan module according to an embodiment of the invention. FIG. 1B is a schematic view of the appearance of the light-emitting fan module of FIG. 1A. FIG. 1C is a schematic diagram of the connection between the connector of FIG. 1A and the fan body. FIG. 1D is a waveform diagram of rotation cycle information when the fan body of FIG. 1A rotates. FIG. 1E is a schematic diagram of a rotor of the light-emitting fan module of FIG. 1A. FIG. 1F is a schematic diagram of the stator of the light-emitting fan module of FIG. 1A. FIG. 1G is a schematic diagram of a movement locus formed by the light-emitting element of FIG. 1A when the fan body rotates. 2 is a flowchart of a light emission control method according to an embodiment of the invention. 3A is a schematic diagram of a rotor of another light-emitting fan module according to an embodiment of the invention. 3B is a schematic diagram of a stator of another light-emitting fan module according to an embodiment of the invention. FIG. 3C is a block diagram of the light-emitting fan module of FIGS. 3A and 3B. FIG. 4A is a schematic view of the change of the stop position of the light-emitting element of the light-emitting fan module of FIG. 3A before and after the rotation of the fan body. 4B is a waveform diagram of the rotation cycle information when the fan body of FIG. 3A rotates. 4C is a schematic diagram of a movement locus formed by the light emitting element of the light emitting fan module of FIG. 3A when the fan body rotates. 5A is a waveform diagram of rotation cycle information when each fan body of a light-emitting fan unit rotates according to an embodiment of the invention. 5B is a schematic diagram of the light-emitting fan unit of FIG. 5A.

S110, S120, S130‧‧‧ steps

Claims (10)

A light-emitting fan module includes: a fan body having a rotation period information; a light-emitting element disposed on the fan body, wherein when the fan body rotates, the movement trajectory of the light-emitting element forms a closed area, and the The enclosed area has a plurality of partitions; and a control unit electrically connected to the light-emitting element, wherein the control unit generates a plurality of lighting effect control signals according to the rotation cycle information of the fan body, and the lighting effect control signals are respectively The partitions of the closed area correspond to each other. When the light-emitting element passes through the partitions of the closed area, the control unit sequentially transmits the corresponding light-effect control signals to the light-emitting element to control the light-emitting elements in the closed area. Multiple lighting patterns are formed on the partitions. The luminous fan module according to item 1 of the patent application scope, wherein the fan body has a plurality of feet, and the luminous fan module further includes: a connector electrically connected to the control unit, wherein the connecting appliance There is a rotation speed detection pin, and one of the pins of the fan body is electrically connected to the rotation speed detection pin, the control unit obtains a rotation speed signal of the fan body according to the electrical signal of the rotation speed detection pin, The rotation cycle information of the fan body is obtained. The light-emitting fan module as described in item 1 of the patent application scope, wherein the light-emitting element is a full-color light-emitting diode. The light-emitting fan module as described in item 1 of the patent application scope further includes: a stator; a rotor disposed on the stator and capable of freely rotating relative to the stator; a first magnetic element and a second magnetic element , Arranged on the rotor; and a first Hall element and a second Hall element, arranged on the stator, and electrically connected to the control unit, wherein the second magnetic element is arranged to enable the second Huo Sensor, without disturbing the position of the first Hall element, the control unit detects the electrical signals of the first Hall element and the second Hall element to obtain the rotation cycle information of the fan body . A light-emitting fan unit includes: a plurality of light-emitting fan modules as recited in item 4 of the patent scope, wherein the light-emitting fan modules correspond to each other in light-emitting mode, so that the light-emitting fan modules can form multiple compound light-emitting modes . A light-emitting control method is suitable for a light-emitting fan module, wherein the light-emitting fan module includes a fan and a light-emitting element disposed on the fan body, and the light-emitting control method includes: according to a rotation cycle information of the fan body A plurality of lighting effect control signals are generated, wherein when the fan body rotates, the movement trajectory of the light-emitting element forms a closed area, the enclosed area has a plurality of partitions, and the lighting effect control signals and the enclosed area are respectively Partition correspondence; and when the light-emitting element passes through the partitions of the enclosed area, corresponding light-effect control signals are sequentially transmitted to the light-emitting element to form multiple light-emitting modes on the partitions of the enclosed area. The light emission control method as described in Item 6 of the patent application range, wherein the method of obtaining the rotation cycle information of the fan body includes: electrically connecting a pin position of the fan body to a rotation speed detection pin on a connector ; And obtaining a rotation speed signal of the fan body according to the electrical signal of the rotation speed detection pin to obtain the rotation cycle information of the fan body. The light emission control method as described in item 6 of the patent application range, wherein the light emitting element is a full-color light emitting diode. The light emission control method as described in item 6 of the patent application scope, wherein the method of obtaining the rotation period information of the fan body includes: providing a first Hall element and a first magnetic element, wherein when the fan body rotates, Driving the first magnetic element to rotate relative to the first Hall element; detecting the electrical signal of the first Hall element to obtain the rotation cycle information of the fan body; providing a second Hall element and a first Two magnetic elements, wherein when the fan body rotates, the second magnetic element is driven to rotate relative to the second Hall element, and the second magnetic element is arranged to enable the second Hall element to sense without interfering with the The position of the first Hall element; and detecting the electrical signal of the second Hall element to obtain the rotation cycle information of the fan body. The lighting control method as described in item 9 of the patent application scope is applicable to a lighting fan unit, wherein the lighting fan unit includes a plurality of lighting fan modules, and the lighting modes of the lighting fan modules correspond to each other to The light-emitting fan modules can form multiple compound light-emitting modes.

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