TW201325411A - Fan module - Google Patents

Abstract

A fan module comprises a base, a fan, a light-emitting element and a circuit unit. The fan is rotatably disposed on the base, the light-emitting element is disposed on the fan for emitting lights, and the light is transmitted along a radial direction of the fan. The circuit unit is disposed on the base and electrically connects the fan and the light-emitting element. The circuit unit controls a rotation cycle of the fan and a pulse cycle of the light-emitting element, and the light has a light guide direction relative to the base in coordination with the rotation cycle of the fan for forming an identification of a fan's rotating speed on the fan.

Description

Fan module

The invention relates to a fan module, in particular to a fan module with a light source.

With the rapid development of the electronics industry, the computing speed of electronic components in electronic devices has been greatly improved. However, as the speed of operation increases, electronic components such as a central processing unit (CPU) or a graphics processing unit (GPU) for performing data operations in an electronic product often generate a large amount of waste heat. At this time, if the waste heat cannot be discharged from the electronic product in an instant, the operating temperature of the electronic component is likely to be too high, which causes the calculation speed to be greatly reduced, and the operational efficiency and stability of the electronic product are seriously affected; or Causes that electronic components cannot withstand high temperatures and burn out.

One of the common heat dissipation methods for this problem is to install a fan in the electronic product for dissipating heat from the electronic components. It mainly uses the air flow generated by the fan to blow on the electronic component, thereby performing heat exchange on the surface of the electronic component.

Conventionally applied to the fan of an electronic device, its functions mostly focus on the heat dissipation function, so that the design of the fan does not change much, and there is no other additional function, so another industry has developed a light-emitting fan with light and shadow effect, thereby attracting consumers. Eyes and choices. A general light-emitting fan mainly comprises a frame, a fan wheel and a single or a plurality of light-emitting elements, such as a light emitting diode (LED), wherein the fan wheel is rotatably disposed in the fan frame, and the light-emitting element is disposed at On the fan frame or on the fan wheel. Moreover, in order to make the light emitted by the light-emitting element have a better illumination effect, when the light-emitting element is disposed in the fan frame, the light-emitting direction of the light-emitting element is generally directed toward the fan wheel; and when the light-emitting element is disposed on the fan wheel, the light-emitting element is The direction of illumination is set parallel to the axial direction of the fan wheel. Therefore, when the illuminating fan receives an external power source to generate operation, a bright lighting effect can be produced by the brightness change of the illuminating element.

However, since the arrangement of the foregoing light-emitting elements is fixed on the fan frame, only static light change effects, such as light and darkness of the light and color changes, and the like, and the manner in which the light-emitting elements are fixed to the fan wheel are provided. Since the light-emitting direction of the light-emitting element is parallel to the axial direction of the fan wheel, that is, the light-emitting element emits light along the axial direction of the fan wheel to the external environment, in practical applications, whether the user directly views the light-emitting fan to view the light effect, or When an electronic device is used around the illuminating fan, the user's eyes are highly susceptible to the illumination and stimulation of the light generated by the illuminating element, which causes the user's eye discomfort, which seriously affects the user's willingness to use the illuminating fan. In addition, since the illuminating element of the illuminating fan can only provide the light and dark changes of the light to attract the user's gaze, it does not provide other operational information of the user's illuminating fan, such as the current operating temperature or operating speed of the fan during operation. Therefore, the practicality of the current lighting fan in application still needs further improvement.

In view of the above problems, the present invention provides a fan module, which solves the problem that the conventional fan only has a heat dissipation function, but does not allow the user to know the relevant information of the fan operation efficiency, and the conventional illumination fan can only provide a simple light and shade. The change, which also fails to provide the user with information about the performance of the fan, and in use, the user's eyes are easily exposed by the light-emitting elements of the light-emitting fan, which seriously affects the user's comfort when operating the electronic device. .

The fan module of the present invention comprises a base, a fan, a light emitting component and a circuit unit. The fan includes a hub and a plurality of blades disposed on the hub, and the hub is rotatably disposed on the base, the fan has a rotation period, and the hub rotates relative to the base according to the rotation period. The illuminating element is disposed on the hub, and the illuminating element has a pulse period of the rotation period, the illuminating element emits a ray according to the pulse period, the ray is transmitted along the radial direction of the hub, and the ray cooperates with the rotation period, and has a light guiding direction relative to the pedestal . The circuit unit is electrically connected to the fan and the light emitting element, and controls a rotation period of the fan and a pulse period of the light emitting element.

The effect of the invention is that, by providing a light-emitting element on the fan, and the pulse period of the light-emitting element is matched with the operation mode of the rotation period of the fan, the light emitted by the light-emitting element is formed on the fan according to different rotation periods. The direction of the guidance, so that the user can directly determine the rotation speed of the fan at the time according to the direction of the light guidance. At the same time, the direction in which the light guiding direction is parallel to the radial direction of the hub prevents the light emitted by the light emitting element from being irradiated to the eye of the user to cause irritation or interference, thereby improving the comfort of the user when operating the electronic device.

The features, implementations, and utilities of the present invention are described in detail below with reference to the drawings.

Referring to FIG. 1 to FIG. 3 , a fan module 10 according to a first embodiment of the present invention includes a base 110 , a fan 120 , a light emitting component 130 , and a circuit unit 140 . The fan 120 is disposed on the base 110. The fan 120 includes a hub 121 and a plurality of blades 122. The plurality of blades 122 are disposed around the circumference of the hub 121 on the surface of the hub 121. The hub 121 has a rotating shaft and is threaded through the shaft. The hub 121 is disposed in the shaft tube of the base 110, so that the hub 121 can be rotated relative to the base 110 by rotating the shaft in the shaft tube of the base 110. The light-emitting element 130 can be, but is not limited to, a light-emitting diode (light- Emitter diode, LED). A magnetic coil group is disposed between the susceptor 110 and the fan 130. The magnetic coil assembly is enclosed in the hub 131 of the fan 130, and is electrically connected to the light emitting component 160 and the circuit unit 120. The hub 131 of the fan 130 is electrically connected to the light emitting element 160. After the fan module 10 receives the power from the outside, the fan 130 of the fan module 10 can rotate relative to the base 110 through the excitation of the magnetic coil assembly, and provide the power required by the circuit unit 110 and the light-emitting component 160 during operation. The fan module 10 can control the rotation period of the fan 130 through the circuit unit 110; or, a circuit board is additionally disposed on the base 110 to drive the fan 13 to rotate by the cooperation of the circuit board and the circuit unit 120, and The rotation period of the fan 130 is controlled. The manner in which the fan 130 is pivoted to the base 110 and the power supply mode are not the features of the present invention. Therefore, the detailed structure and operation mode are not described herein.

The light emitting element 130 is disposed on the other side of the hub 121 of the fan 120 with respect to the base 110 and corresponds to the axis of the hub 121. The light-emitting element 130 has a light-emitting surface 131 for emitting a light, and the normal direction of the light-emitting surface 131 is perpendicular or inclined to the axial direction of the hub 121, so that the light emitted by the light-emitting surface 131 is along the radial direction of the hub 121. Or it is transmitted in a direction inclined to the radial direction of the hub 121. In the present embodiment, the normal direction of the light-emitting surface 131 is perpendicular to the axial direction of the hub 121 as an example, but is not limited thereto.

The circuit unit 140 can be, but is not limited to, a circuit board electrically provided with a control circuit and a micro-processing chip 141, and the circuit unit 140 is electrically connected to a power source outside the fan module. The circuit unit 140 is disposed between the susceptor 110 and the fan 120, and is electrically connected to the fan 120 and the illuminating element 130, wherein the fan 120 has one rotation period of rotation with respect to the susceptor 110, and the illuminating element 130 has one of the emitted light. During the pulse period, the circuit unit 140 controls the rotation period of the fan 120 and the pulse period of the light-emitting element 130 through the micro-process wafer 141, and the pulse period of the light-emitting element 130 is matched with the rotation period of the fan 120, so that the light-emitting element 130 emits according to the pulse period. The light rays can cooperate with the rotation period of the fan 120, and have a light guiding direction with respect to the base 110. Therefore, when the fan 120 rotates relative to the susceptor 110 at different rotation periods, the light emitted by the illuminating element 130 will cooperate with different rotation periods, and the different directional directions of the light will be changed with respect to the susceptor 110.

Referring to FIG. 2, FIG. 4 and FIG. 5, for example, when the circuit unit 140 controls the fan 120 to rotate relative to the base 110 in a first rotation period to rotate the fan 120 in the clockwise direction, the circuit unit 140 The light-emitting element 130 is controlled to emit a light with a fixed pulse period in cooperation with the first rotation period. For example, the number of cycles of the control pulse period is equal to the number of cycles of the first rotation period (as shown in FIG. 5), so that the light is on the opposite base 110. A first light guiding direction D1 is irradiated along the radial direction of the hub 121 to form a pointing beam on the fan 120. Therefore, when the user views the fan module 10 from the direction in which the fan 120 faces the susceptor 110, the pointing light beam can be noticed at a specific position on the fan 120. In the present embodiment, when the number of cycles of the pulse period is equal to the number of cycles of the first rotation period, the first light directing direction D1 is the 12 o'clock direction of the fan.

Referring to FIG. 2 and FIG. 6 to FIG. 8 , in addition, in a state where the pulse period of the light-emitting element 130 is constant, the circuit unit 140 controls the rotation of the fan 120 at a second rotation period smaller than the first rotation period. In order to speed up the rotation of the fan 120, since the light-emitting element 130 is fixed on the hub 121 of the fan 120, and as the fan 120 rotates, when the light-emitting element 130 emits light according to the pulse period, the light will cooperate with the second rotation period. A second light guiding direction D2 of the susceptor 110 is irradiated along the radial direction of the hub 121 to form another directed beam on the fan 120.

For example, when the circuit unit 140 controls the rotation of the fan 120 in the second rotation cycle to increase the rotation speed of the fan 120 from 1200 rpm to 1400 rpm, the number of cycles of the second rotation cycle will change from the number of cycles equal to the pulse period to be larger than the pulse period. The number of cycles is such that the second rotation period leads the pulse period by 0.125 cycles, so that the second light guiding direction D2 corresponds to the 1 o'clock direction of the fan 120 (as shown in FIG. 6); when the fan 120 speed is increased to 1600 rpm, The second rotation period leads the pulse period by 0.25 cycles, so that the second light guiding direction D2 corresponds to the 3 o'clock direction of the fan; when the fan 120 speed is increased to 1800 rpm, the second rotation period leads the pulse period by 0.375 cycles, so that the second The light guiding direction D2 corresponds to the 4 o'clock direction of the fan 120; and when the fan 120 speed is increased to 2000 rpm, the second rotation period leads the pulse period by 0.5 cycles, so that the second light guiding direction D2 corresponds to the 6 o'clock of the fan 120. Direction (as shown in Figures 7 and 8).

Therefore, in the use of the fan module 10, the user can immediately know the running speed of the fan 120 according to the guiding direction of the pointing beam on the fan 120. In addition, in the embodiment, a temperature sensor 142 is selectively disposed on the circuit unit 140 for detecting the operating temperature inside the fan 120, so that the circuit unit 140 can control the illumination according to the operating temperature. The color of the light emitted by element 130. For example, when the operating temperature is about 30 ° C, the circuit unit 140 controls the light emitting element 160 to emit a green light beam; when the operating temperature is about 60 ° C, the circuit unit 140 controls the light emitting element 160 to emit a purple light beam; and when the operating temperature is about 90 ° C At this time, the circuit unit 140 controls the light emitting element 160 to emit a red light beam or the like. In addition to the rotation speed of the fan 120, the user can simultaneously know the temperature state of the fan 120 during operation.

In addition, in the fan module 10 disclosed in the first embodiment of the present invention, since the pulse period of the light-emitting element 130 is controlled to a constant value by the circuit unit 140, the light-emitting element 130 emits at different speeds of the fan 120. The light always forms a single beam on the fan 120. However, as shown in FIG. 9 and FIG. 10, in the second embodiment of the present disclosure, the circuit unit 140 can selectively electrically set a speed sensor 143 for detecting the speed of the fan 120. The circuit unit 140 can control the pulse period of the light-emitting element 130 according to the rotation speed of the fan 120, so that the light-emitting element 130 cooperates with the rotation period of the fan 120 to emit light at different pulse periods. For example, when the fan 120 is rotated in the first rotation period, the light-emitting element 130 still emits light only toward the first light guiding direction D1. However, when the fan 120 rotates in the second rotation period, the light-emitting element 130 can simultaneously emit light in the first light guiding direction D1 and the second light guiding direction D2, so that the light simultaneously forms a pointing beam at two different positions on the fan 120. For example, a directed light beam is formed at the same time in the 12 o'clock direction and the 1 o'clock direction of the fan 120.

Moreover, the circuit unit 140 can also control the continuous emission of the light emitting element 130 in the time interval of the first light guiding direction D1 to the second light guiding direction D2, so that the light forms a light curtain on the fan 120, for example, in the fan. A fan-shaped light curtain is formed between the 12 o'clock direction and the 1 o'clock direction of 120, which further enhances the visibility and convenience of the user when observing the rotation speed and temperature of the fan 120.

Please refer to FIG. 11 and FIG. 12 for a partial exploded view and a side view of a third embodiment of the present invention. The third embodiment disclosed in the present invention is substantially the same in structure as the first embodiment, and only the differences between the two will be described below. The fan module 10 of the third embodiment of the present invention further includes a cover body 150 and a light guide member 160. The cover body 150 covers the hub 121 opposite to the other side of the base 110 to make the hub 121 and the cover body. 150 is spaced apart from the axis of the hub 121 by a distance. The light-emitting element 130 is disposed on the cover 150 and is received between the cover 150 and the hub 121. The light guide 160 is disposed on the hub 121 and corresponds to the light emitting element 130. The light guide member 160 can be, but is not limited to, an optical fiber having a first end 161 and a second end 162. The first end 161 of the light guide 160 corresponds to the axis of the hub 121, and the light guide 160 The second end 162 extends in the radial direction of the hub 121 and is adjacent to the outer circumference of the hub 121. The first end 161 of the light guiding member 160 is disposed with a slope 163. The slope 163 is along the circumference of the hub 121 toward the axis, and is away from the first end 161 of the light guiding member 160 toward the side of the light emitting element 130. One side of the light-emitting element 130 is obliquely disposed, and a diagonal cut corresponding to the light-emitting element 130 is formed at the first end 161 of the light guide 160.

Therefore, when the circuit unit 140 drives the light-emitting element 130 to emit a light, the light enters the light guide 160 via the inclined surface 163 formed by the first end 161 of the light guide 160, and is guided by the light guide 160, and is guided. The second end 162 of the light member 160 is emitted to illuminate the light in the radial direction of the wheel housing 121, and forms a pointing beam D on the fan 120 in conjunction with the rotation period of the fan 120 for the user to recognize the rotational speed of the fan 120. At the same time, since the light generated by the light-emitting element 130 is irradiated along the radial direction of the hub 121, the direct illumination of the light to the user's eyes can be avoided, and the temporary blindness caused by the user directly looking at the light source can be avoided. .

In the fan module of the present invention, the circuit unit controls the pulse period of the light-emitting element and the rotation period of the fan, and the operation mode of the pulse period and the rotation period, so that the light emitted by the light-emitting element is formed at different positions on the fan. The corresponding speed of the fan is directed to the beam, so that the user can directly determine the fan speed according to the direction of the pointing beam and determine the operating temperature of the fan according to different light colors. At the same time, the arrangement of the light in the radial direction of the hub reduces the probability of the user's eyes being exposed to light, or directly looking at the light source, thereby preventing the user's eyes from being uncomfortable or temporarily blind.

Although the embodiments of the present invention are disclosed above, it is not intended to limit the present invention, and those skilled in the art, regardless of the spirit and scope of the present invention, the shapes, structures, and features described in the scope of the present application. And the number of modifications may be made, and the scope of patent protection of the present invention shall be determined by the scope of the patent application attached to the specification.

10. . . Fan module

110. . . Pedestal

120. . . fan

121. . . Wheel hub

122. . . Fan blade

130. . . Light-emitting element

131. . . Luminous surface

140. . . Circuit unit

141. . . Microprocessor wafer

142. . . Temperature sensor

143. . . Speed sensor

150. . . Cover

160. . . Light guide

161. . . First end

162. . . Second end

163. . . Bevel

D1. . . First light direction

D2. . . Second light direction

D. . . Pointing beam

FIG. 1 is a perspective view of a fan module according to a first embodiment of the present invention.

Fig. 2 is a side elevational view showing the fan module of the first embodiment of the present invention.

3 is a top plan view of a fan module according to a first embodiment of the present invention.

Fig. 4 is a schematic view showing the state of use of the fan of the first embodiment of the present invention rotated in a first rotation cycle.

Fig. 5 is a waveform diagram showing the number of cycles of the pulse period equal to the number of cycles of the rotation period in the first embodiment of the present invention.

6 and 7 are schematic views showing the use state of the fan of the first embodiment of the present invention rotated in the second rotation period.

Fig. 8 is a waveform diagram showing the number of cycles of the pulse period smaller than the number of cycles of the rotation period in the first embodiment of the present invention.

Figure 9 is a side elevational view of the fan module of the second embodiment of the present invention.

Figure 10 is a top plan view of a fan module according to a second embodiment of the present invention.

Fig. 11 is a partially exploded perspective view showing the fan module of the third embodiment of the present invention.

Figure 12 is a side elevational view of a fan module of a third embodiment of the present invention.

10. . . Fan module

110. . . Pedestal

120. . . fan

121. . . Wheel hub

122. . . Fan blade

130. . . Light-emitting element

D2. . . Second light direction

Claims (13)

A fan module includes:
a pedestal
a fan includes a hub and a plurality of blades disposed on the hub, the hub is rotatably disposed on the base, the fan has a rotation period, and the hub rotates relative to the base according to the rotation period;
a light-emitting element disposed on the hub, the light-emitting element having a pulse period corresponding to the rotation period, the light-emitting element emitting a light according to the pulse period, the light is transmitted along a radial direction of the hub, and the light cooperates with the rotation And a circuit unit electrically connected to the fan and the light emitting element, and the circuit unit controls the rotation period and the pulse period. The fan module of claim 1, wherein the rotation period comprises a first rotation period and a second rotation period, the light guiding direction comprising a first light guiding direction and a second light guiding direction, when the lighting The light is emitted by the component in the first rotation period, and the light is transmitted along the first light guiding direction. When the light emitting component cooperates with the second rotation period to emit the light, the light is transmitted along the second light guiding direction. The fan module of claim 2, wherein the pulse period is a fixed value, and the first rotation period is greater than the second rotation period. The fan module of claim 3, wherein the number of cycles of the first rotation period is equal to the number of cycles of the pulse period, and the number of cycles of the second rotation period is greater than the number of cycles of the pulse period. The fan module of claim 4, wherein the difference between the number of cycles of the second rotation period and the number of cycles of the pulse period is a multiple of 0.125. The fan module of claim 2, wherein the circuit unit comprises a rotational speed sensor for detecting the rotation period, and the circuit unit controls the pulse period according to the rotation period. The fan module of claim 6, wherein the fan rotates in the second rotation period, and the light emitting element emits the light in the first light guiding direction and the second light guiding direction, respectively. The fan module of claim 1, wherein the circuit unit comprises a temperature sensor for detecting an operating temperature of the fan, and the circuit unit controls the color of the light emitting component to emit the light according to the operating temperature of the fan. . The fan module of claim 1, wherein the light emitting element is disposed on the other side of the hub opposite to the base, the light emitting element has a light emitting surface for emitting the light, and a normal direction of the light emitting surface Vertical or inclined to the axial direction of the hub. The fan module of claim 1, further comprising a cover body and a light guide member, the cover body being connected to the other side of the hub opposite to the base, the light emitting element being disposed on the cover body and the hub The light guide member is disposed on the side surface along the radial direction of the hub, and corresponding to the light emitting element, the light emitting element emits the light, and the light guide member guides the light to be transmitted along the radial direction of the hub. The fan module of claim 10, wherein the light guide corresponds to one of the blades, and a reflector is disposed on the blade, the light guide guiding the light to the reflector The reflector reflects the light. The fan module of claim 10, wherein the light guide member is an optical fiber, the light guide member has a first end and a second end, the first end is located at an axis of the hub, and the second end is located An outer periphery of the hub, the light emitting element emits the light to the first end, and the light is transmitted to the second end via the first end. The fan module of claim 12, wherein the first end has a first inclined surface, the first inclined surface is away from one side of the light emitting element from the first end toward the first end and away from a side of the light emitting element An oblique setting is formed, and a oblique cut is formed at the first end, and the light enters the light guide through the oblique cut.