TWI464326B - Fan module - Google Patents

Description

Fan module

The present invention relates to a fan module, and more particularly to a fan module having a function of indicating a fan speed.

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.

However, the fan that is conventionally used in electronic devices mostly focuses on the heat dissipation function, so that the design of the fan does not change much, and there are no other additional functions, such as the inability to provide the operating temperature or operating speed of the user when the fan is running. And other related information. Therefore, the practicality of the current fan still needs further improvement.

In view of the above problems, the present invention provides a fan module for solving the problem. The conventional fan only has a heat dissipation function in use, and cannot provide the user with a problem of knowing the operation state of the fan.

The fan module of the present invention comprises a base, a fan, an indicating unit and a circuit unit. The fan includes a hub rotatably disposed on the base and the fan has a rotation period. The indicating unit comprises a guiding rail, an elastic member and a guiding member. The guiding rail is connected to the hub along the radial direction of the hub. The elastic member is connected between the guiding rail and the guiding member, and the guiding member is disposed in the guiding rail and cooperates with the rotation period of the fan. Reciprocating displacement relative to the axis of the hub. The circuit unit is electrically connected to the fan, and the circuit unit controls the rotation period of the fan.

The effect of the present invention is that a guide rail is disposed along the radial direction of the fan hub, and a reciprocally displaceable index member is disposed in the guide rail such that the guide member cooperates with the fan in a radial direction away from the hub in a radial direction of the hub. At the same time, the shorter the rotation period of the fan (i.e., the faster the rotation speed), the greater the centrifugal force generated by the fan, and the further the distance from the guide member away from the hub. Conversely, the longer the rotation period of the fan (ie, the slower the rotation speed), the closer the guide is away from the hub. Therefore, the user can directly know the rotational speed of the fan during operation according to the displacement distance of the guide member relative to the hub, and can determine whether the rotational speed of the fan is normal under the corresponding working temperature.

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

The fan module disclosed in the present invention is suitable for use in an electronic product as a heat dissipating device for electronic components inside an electronic product, for example, as a central processing unit or a graphic processor, which generates waste heat discharge during operation. Heat sink for electronic components.

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 circuit unit 120 , a fan 130 , and an indicating unit 140 . The circuit unit 120 is a circuit board configured with a control circuit, and the circuit unit 120 is disposed on the susceptor 110. The fan 130 includes a hub 131 and a plurality of blades 132. The plurality of blades 132 are disposed around the surface of the hub 131 along the circumference of the hub 131. The hub 131 has a rotating shaft and is disposed in the shaft tube of the base 110 by a rotating shaft. The hub 131 can be rotated relative to the circuit unit 120 and the base 110 by rotating the shaft in the shaft tube. The circuit unit 120 is interposed between the hub 131 of the fan 130 and the base 110. The manner in which the pedestal 110 is disposed is not a feature that the present invention intends to emphasize, and will not be further described herein.

Therefore, the fan 130 is rotatably disposed on the base 110 and has a rotation period. The circuit unit 120 is electrically connected to the fan 130. The circuit unit 120 is electrically disposed with a micro processing chip 121 and a rotation speed sensor 122. The circuit unit 120 detects the rotation speed of the fan 130 through the rotation speed sensor 122. The wafer 121 controls the rotation period of the fan 130 to adjust the rotational speed of the fan 130 on the susceptor 110.

The indicating unit 140 is disposed on the hub 131 of the fan 130. The indicating unit 140 includes a guiding rail 141, a guiding member 142 and an elastic member 143. The guiding member 141 may be, but not limited to, a hollow tube composed of a light transmissive material. Or a semicircular tube or the like, one end of the guide rail 141 is connected to the other side surface of the hub 131 opposite to the base 110, and the other end of the guide rail 141 extends in the radial direction of the hub 131, wherein the radius of rotation of the guide rail 141 on the fan 130 may be equal to The radius of rotation of the plurality of blades 132 is either less than or greater than the radius of rotation of the plurality of blades 132. Embodiments disclosed in the present invention The rotation radius of the guide rail 141 is equal to the radius of rotation of the plurality of blades 132, but is not limited thereto.

The guide member 142 is disposed in the guide rail 141 and is reciprocally displaceable relative to the hub 131, and is disposed closer to or away from the hub 131 along the direction in which the guide rail 141 is disposed. The indexing member 142 can be, but is not limited to, a sphere composed of glass or a polymeric material. In addition, the guiding member 142 may also be composed of a luminescent material, or selectively coated with a luminescent material and/or a light absorbing material on the surface of the guiding member 142, so that the guiding member 142 can release light in the guiding 141 for The relative position of the indexing member 142 within the guide rail 141 is identified.

The elastic member 143 may be, but not limited to, a spring or a spring piece. The elastic member 143 is disposed in the guide rail 141 and is connected between the guide rail 141 and the indexing member 142. One end of the elastic member 143 is connected to the indexing member 142, and the other end of the elastic member 143 is connected to the rail 141 near one side of the hub 131. Alternatively, away from one side of the hub 131, the indicator member 142 is temporarily fixed in the initial position in the guide rail 141.

In addition, a fixing member 150 is further disposed on the hub 131 of the fan 130. The fixing member 150 is disposed on the other side of the hub 131 opposite to the base 110. The fixing member 150 is a sheet or plate having a circumferential radius equal to or smaller than the circumferential radius of the hub 131, and has a groove 151 on the fixing member 150, the groove 151 being disposed along the radial direction of the fixing member 150, and corresponding to the indication Guide rail 141 of unit 140. When the fixing member 150 is disposed on the hub 131, the rail 141 is coupled to the end of the hub 131 to be engaged in the groove 151, so that the rail is fixed to the hub, and the weight of the indicating unit 140 and the fixing member 150 is evenly distributed to the fan. 130.

As shown in FIGS. 1 to 4, in use, when the circuit unit 120 drives the wind When the fan 130 rotates relative to the base 110 during a first rotation period, the centrifugal force generated by the fan 130 will force the indexing member 142 of the indicating unit 140 to compress the elastic member 143 such that the guiding member 142 is in the radial direction of the hub 131 from the vicinity of the hub. One side of the 131 moves toward one side away from the hub 131. Also, when the centrifugal force of the fan 130 and the elastic restoring force of the elastic member 143 against the indexing member 142 are balanced, the indexing member 142 will stop moving and is spaced apart from the circumference of the hub 131 by a distance d. At the same time, as the fan 130 continues to rotate, the indexing member 142 is driven by the rotational force of the fan 130 to perform a circular motion with respect to the hub 131 at this distance d. Therefore, when the user looks at the fan module 10, a phenomenon of persistence of vision will occur, and it is observed that the indexing member 142 forms a circular ring around the hub of the hub 131.

Similarly, when the circuit unit 120 drives the fan 130 to rotate relative to the base 110 during a second rotation period, if the second rotation period is less than the first rotation period, the rotation speed of the fan 130 is increased to cause the circumference of the guiding member 142 and the hub 131. The distance between them is elongated, thereby increasing the radius of the ring formed by the indexing member 142 (as shown in Fig. 5), for example, from 1.5 cm (cm) to 2.0 cm. On the contrary, as shown in FIG. 6, if the second rotation period is smaller than the first rotation period, the indexing member 142 will be affected by the decrease in the rotation speed of the fan 130, and shorten the distance d between the wheel and the circumference of the hub 131, thereby shortening the indexing member. The radius of the ring formed by 142 is reduced, for example, from 1.5 cm to 1.0 cm.

Therefore, when the fan module 10 is in operation, the user can directly observe the radius of the ring formed by the guide member 142 on the fan 130, directly determine the rotation speed of the fan 130, or determine whether the rotation speed of the fan 130 is abnormal, for example, If the circuit unit 120 controls the rotation of the fan 130, the standard speed of the fan 130 is 1200 rpm, that is, The minimum speed value preset by the fan 130 in the normal state. Also, the radius of the ring formed by the indexing member 142 at this rotational speed is 1.5 cm. However, in actual operation, if the user observes that the radius of the ring is less than 1.5 cm, the user can directly perceive that the rotation speed of the fan 130 is too slow, and judge that the operation of the fan module 10 is abnormal, so that the fan can be immediately targeted. The module 10 is repaired and replaced.

Please refer to FIG. 7 and FIG. 8 for a side view and a top view of a second embodiment of the present invention. The second embodiment of the present invention is substantially the same as the first embodiment. The difference between the two is that the fan unit 10 disclosed in the second embodiment of the present invention is directly disposed on one end of the indicating unit 140. The fan module 130 of the fan 130 further includes a light-emitting element 160, which may be, but not limited to, a light-emitting diode (LED). In addition, a magnetic coil group is disposed between the base 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 element 160 and the circuit unit 120, wherein the circuit unit 120 is disposed. 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 160 is disposed on the surface of the hub 131 and is located on the axis of the hub 131. At the same time, the light-emitting element 160 has a light-emitting surface 161, and the light-emitting surface 161 is engaged with one end of the trench 151 corresponding to the guide rail 141. When the circuit unit 120 controls the light-emitting element 160 to emit a light, the light is emitted into the guide rail 141 via the light-emitting surface 161 and projected onto the indexing member 142. The guiding member 142 may be, but not limited to, a sphere composed of glass, a light transmissive polymer or a light reflecting polymer, so that the indicator member 142 can form an illuminant or a reflector in the guide rail 141 after receiving the light, and further The light is scattered or reflected outside the guide rail 141.

Therefore, when the circuit unit 120 controls the rotation of the fan 130 relative to the base 110, the light-emitting element 160 projects light onto the indexing member 142 of the indicating unit 140, so that the guiding member 142 is subjected to the centrifugal force of the fan 130 to form an optical ring. The user can more clearly recognize the relative position between the guiding member 142 and the hub 131, and increase the convenience of the user to determine the rotational speed of the fan 130.

In addition, a temperature sensor 123 is selectively disposed on the circuit unit 120 for detecting an operating temperature inside the fan 130 when the fan 130 rotates. The circuit unit 120 controls the color of the light emitted by the light-emitting element 160 according to the operating temperature. For example, when the operating temperature is about 30 ° C, the light-emitting element 160 emits a green light beam. When the operating temperature is 60 ° C, the light-emitting element 160 emits a purple light beam and When the operating temperature is 90 ° C, the light-emitting element 160 emits a red light beam or the like. Therefore, in actual operation, the user can determine the rotational speed of the fan 130 by observing the size of the optical ring formed by the guiding member 142 of the indicating unit 140, and can determine the internal temperature of the fan 130 by observing the color of the optical ring. The operation status of the fan 130 can be immediately known.

Referring to FIG. 9 and FIG. 10 , a fan module 10 according to a third embodiment of the present invention includes a base 110 , a circuit unit 120 , a fan 130 , an indicating unit 140 , and a fixing member 150 . A light guide 170, an outer frame 180, and a light emitting element 160. The circuit unit 120 is a circuit board configured with a control circuit. The circuit unit 120 is disposed on the base 110, and a micro processing chip 121, a rotational speed sensor 122, and a temperature sensor 123 are electrically disposed on the circuit unit 120. . The fan 130 is electrically connected to the circuit unit 120. The fan 130 includes a hub 131 and a plurality of blades 132. The plurality of blades 132 are disposed around the surface of the hub 131 along the circumference of the hub 131. The hub 131 is pivoted through the shaft provided therein. On the pedestal 110, the circuit unit 120 and the susceptor 110 are rotated. This is a manner in which the fan 130 is pivotally disposed on the pedestal 110, and is not a feature of the present invention, and details are not described herein.

In addition, the fan 130 has a rotation period, and the circuit unit 120 controls the rotation period of the fan 130 through the micro processing wafer 121, thereby adjusting the rotation speed of the fan 130 on the base 110, and detecting the rotation speed of the fan 130 through the rotation speed sensor 122. .

The fixing member 150 and the light guiding member 170 are respectively disposed on the other side of the hub 131 of the fan 130 with respect to the base 110. The fixing member 150 is a sheet having a circumferential radius equal to the circumferential radius of the hub 131, and has a groove 151 on the fixing member 150, and the groove 151 is disposed along the radial direction of the fixing member 150. The light guide 170 can be, but is not limited to, an optical fiber, and the light guide 170 is embedded in the groove 151 of the fixture 150. The light guiding member 170 has a first end 171 and a second end 172. The first end 171 of the light guiding member 170 corresponds to the axial center of the hub 131, and the second end 172 of the light guiding member 170 faces the diameter of the hub 131. The direction extends and is close to the outer circumference of the hub 131.

The indicating unit 140 is disposed on the hub 131 of the fan 130. The indicating unit 140 includes a guiding rail 141, a guiding member 142 and an elastic member 143. The guiding member 141 may be, but not limited to, a hollow tube composed of a light transmissive material. One end of the guide rail 141 is fitted into the groove 151 of the fixing member 150 from the outer periphery of the hub 131, and corresponds to the light guide 170. The other end of the guide rail 141 extends in the radial direction of the hub 131 such that the radius of rotation formed by the guide rail 141 as the fan 130 rotates is equal to the radius of rotation of the plurality of blades 132. The guiding member 142 and the elastic member 143 are respectively disposed in the guide rail 141. The guiding member 142 may be, but not limited to, a sphere composed of glass, a light transmitting polymer or a light reflecting polymer, and the elastic member 143 may be Not limited to springs or shrapnel. One end of the elastic member 143 is connected to the guiding member 142, and the other end of the elastic member 143 is connected to one side of the guiding rail 141 away from the hub 131, so that the guiding member 142 is temporarily fixed in an initial position in the guiding rail 141, and can be The elastic force of the elastic member 143 is driven to reciprocate relative to the hub 131 in the guide rail 141.

The outer frame 180 covers the base 110, and the components such as the circuit unit 120, the fan 130, the indicating unit 140, the fixing member 150, and the light guiding member 170 are wrapped between the outer frame 180 and the base 110. The outer frame 150 and the base 110 may be directly fixed on the base 110; or the fan module 10 may be disposed on the substrate 20 carrying the electronic component 30 inside the electronic product. The base 110 of the fan module 10 can be disposed on the electronic component 30, and the outer frame 150 can be covered and fixed on the substrate 20, and the outer frame 150 can be covered on the base 110. In the embodiment of the present invention, the outer frame 150 is fixed on the substrate 20 carrying the electronic component 30, and is covered on the base 110 as an example, but in practical applications, according to the size of the outer frame 150. Size to select the assembly of the outer frame 150 and the base 110 The formula is not limited to the manner described.

The outer frame 180 is formed with a plurality of openings 181 on one side of the fan 130 for exposing the plurality of blades 132 and the indicating unit 140. The light emitting element 160 is disposed on one side of the outer frame 180 opposite to the fan 130 and corresponds to the first end 171 of the light guide 171. The light emitting device 160 is electrically connected to the circuit unit 120 for emitting a light to the first end 171 of the light guide 170 to transmit the light to the indicating unit 140 by the light guide 170.

In addition, in the arrangement of the light guiding member 170, the first end 171 of the light guiding member 170 may be bent toward the light emitting element 160, so that the first end 171 of the light guiding member 170 is aligned with the light emitting element 160; The first end 171 of the light guiding member 170 is provided with a slope 173. The inclined surface 173 is in the direction of the axis along the circumference of the hub 131. The first end 171 of the light guiding member 170 is adjacent to one side of the light emitting element 160 toward the light emitting element. One side of the light guiding member 160 is obliquely disposed, and a oblique slit is formed at the first end 171 of the light guiding member 170 so that the light generated by the light emitting element 160 can directly pass from the first end 171 of the inclined surface shape of the light guiding member 170. Entering the light guide 170.

As shown in FIGS. 9 and 10, in application, when the circuit unit 120 drives the fan 130 to rotate relative to the base 110 at a rotation period, the centrifugal force generated by the fan 130 will force the indexing member 142 of the indicating unit 140 to compress elastically. The member 143 moves the indexing member 142 in a radial direction of the hub 131 from a side close to the hub 131 toward a side away from the hub 131, and is spaced apart from the circumference of the hub 131 by a distance d. At the same time, the circuit unit 120 drives the light-emitting element 160 to emit light to the first end 171 of the light guide 170, the light is transmitted in the light guide 170, and is projected from the second end 172 of the light guide 170 to the instruction unit 140. Piece 142, the guide 142 shaped An illuminant or a reflector.

Therefore, when the indexing member 142 is circumferentially moved relative to the hub 131 with the rotational force of the fan 130, the user can observe the aura formed by the guiding member 142 outside the circumference of the hub 131 due to the phenomenon of persistence of vision. In turn, the user can directly determine the rotation speed of the fan 130 according to the range of the range covered by the aura. Moreover, the circuit unit 120 can simultaneously cooperate with the operating temperature of the fan 130 to control the light-emitting component 160 to emit different colors of light according to different operating temperatures, so that the user can know the operating temperature of the fan 130 during operation.

Referring to FIG. 11 and FIG. 12 , a fan module 10 according to a fourth embodiment of the present invention includes a base 110 , a circuit unit 120 , a fan 130 , an indicating unit 140 , a light guiding member 170 , and A light emitting element 160. The circuit unit 120 is electrically disposed with a micro-processing chip 121, a rotational speed sensor 122, a temperature sensor 123, and a circuit board of the control circuit. The circuit unit 120 is disposed in the hub 131 of the fan 130, and is electrically connected to the circuit board 120. The fan 130 and the light emitting element 160. The fan 130 is disposed on the base 110. The fan 130 includes a hub 131 and a plurality of blades 132. The plurality of blades 132 are circumferentially disposed on the surface of the hub 131 along the circumference of the hub 131. The hub 131 is pivotally disposed through the internal shaft. On the base 110, the fan 130 is rotatable relative to the circuit unit 120 and the base 110 and has a rotation period. The circuit unit 120 controls the rotation period of the fan 130 through the micro processing chip 121 to adjust the rotation speed of the fan 130; and detects the rotation speed of the fan 130 through the rotation speed sensor 122.

In addition, in this embodiment, a magnetic coil group is further disposed between the base 110 and the fan 130, and the magnetic coil group is wrapped in the hub 131 of the fan 130, and The circuit unit 120 is disposed in the hub 131 of the fan 130 and 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 provides the power required by the circuit unit 110 during operation to make the fan module The group 10 can control the rotation period of the fan 130 through the circuit unit 110. This is the manner in which the fan 120 is pivotally disposed on the base 110 and the power supply mode, and is not a feature of the present invention. Therefore, the detailed structure and operation mode thereof will not be described herein.

The light guide 170 and the indicating unit 140 are respectively disposed on the other side of the hub 131 of the fan 130 with respect to the base 110. The light guide 170 can be, but is not limited to, an optical fiber having a first end 171 and a second end 172. The first end 171 of the light guide 170 corresponds to the axis of the hub 131, and the light guide 170 The second end 172 extends in the radial direction of the hub 131 and is adjacent to the outer circumference of the hub 131.

The indicating unit 140 includes a guiding rail 141, a guiding member 142 and an elastic member 143. The guiding rail 141 can be, but not limited to, a translucent hollow tube. One end of the guiding rod 141 is fixed on the side of the hub 131, and corresponds to The second end 172 of the light guide 170. The other end of the guide rail 141 extends in the radial direction of the hub 131 such that the guide rail 141 has a radius of rotation when the fan 130 rotates, and this radius of rotation is equal to the radius of rotation of the plurality of blades 132. The guiding member 142 and the elastic member 143 are respectively disposed in the guide rail 141. The guiding member 142 may be, but not limited to, a glass ball, and the elastic member 143 may be, but not limited to, a spring, wherein one end of the elastic member 143 is connected to the guiding member. 142, the other end of the elastic member 143 is connected to one side of the guide rail 141 away from the hub 131, so that the guiding member 142 is temporarily fixed in an initial position in the guide rail 141, and can be The elastic force of the elastic member 143 is driven to reciprocate relative to the hub 131 in the guide rail 141.

In addition, a cover body 133 is disposed on the hub 131 of the fan 130. One side of the cover body 133 is connected to the other side of the hub 131 relative to the base 110, and is partially suspended above the light guide 170 to make the cover body. The light guide member 133 is spaced apart from the light guide member 170 in the axial direction of the hub 131. The light emitting element 160 is disposed on a side of the cover 133 opposite to the light guide 170 and corresponds to the first end 171 of the light guide 170.

Therefore, when the circuit unit 120 drives the light-emitting element 160 to emit light, the light can enter the light guide 170 through the first end 171 of the light guide 170, and transmit through the light guide 170, and from the light guide 170 The two ends 172 are projected to the indexing member 142 of the indicating unit 140 to cause the indexing member 142 to form an illuminant or a reflector. At this time, if the circuit unit 120 drives the fan 130 to rotate relative to the base 110 in a rotation cycle, the indexing member 142 of the indicating unit 140 is subjected to the interaction of the centrifugal force and the rotational force of the fan 130, and is separated from the circumference of the hub 131 by a distance d, And the circumferential movement of the hub 131 is such that the indexing member 142 forms a halo around the hub 131 around the circumference of the hub 131, so that the user can directly determine the rotation speed of the fan 130 according to the radius of rotation of the optical ring. At the same time, the circuit unit 120 can also selectively cooperate with the operating temperature inside the fan 130 to control the color of the light emitted by the light-emitting element 160, so that the user can know the temperature information of the fan 130.

The fan module of the present invention is provided with a guiding member for matching the rotation period of the fan on the hub of the fan, so that the user can directly judge the fan according to the radius of the ring or the ring formed by the guiding member outside the circumference of the hub. Rotating speed. At the same time, the light guide element emits light to illuminate the setting manner of the guide member, and the guide member can be further increased. The identification of the formed aura, and allows the user to directly obtain information about the fan temperature according to the color conversion of the light. In addition, in the fan module of the present invention, since the light generated by the light-emitting element is transmitted along the radial direction of the hub, the user's eyes can be prevented from being exposed to light and the user can be temporarily caused by looking directly at the light source. Blindness occurs, thereby improving the comfort of the user when operating the electronic device.

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‧‧‧Base

120‧‧‧ circuit unit

121‧‧‧Microprocessor wafer

122‧‧‧Speed sensor

123‧‧‧temperature sensor

130‧‧‧fan

131‧‧·wheels

132‧‧‧ fan leaves

133‧‧‧ cover

140‧‧‧Instruction unit

141‧‧‧rail

142‧‧‧Guidelines

143‧‧‧Flexible parts

150‧‧‧Fixed parts

151‧‧‧ trench

160‧‧‧Lighting elements

161‧‧‧Lighting surface

170‧‧‧Light guides

171‧‧‧ first end

172‧‧‧ second end

173‧‧‧Bevel

180‧‧‧Front frame

181‧‧‧ openings

20‧‧‧Substrate

30‧‧‧Electronic components

D‧‧‧distance

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.

4 to 6 are schematic views showing the state of use of the fan module according to the first embodiment of the present invention.

Figure 7 is a side elevational view of the fan module of the second embodiment of the present invention.

Figure 8 is a top plan view of a fan module according to a second embodiment of the present invention.

Figure 9 is an exploded perspective view of a fan module according to a third embodiment of the present invention.

Figure 10 is a side elevational view of a fan module in accordance with a third embodiment of the present invention.

Figure 11 is a side elevational view of the fan module of the fourth embodiment of the present invention.

Figure 12 is a top plan view of a fan module according to a fourth embodiment of the present invention.

10‧‧‧Fan module

110‧‧‧Base

120‧‧‧ circuit unit

130‧‧‧fan

131‧‧·wheels

132‧‧‧ fan leaves

140‧‧‧Instruction unit

141‧‧‧rail

142‧‧‧Guidelines

143‧‧‧Flexible parts

150‧‧‧Fixed parts

151‧‧‧ trench

Claims (13)

A fan module includes: a base; a fan, including a hub, the hub is rotatably disposed on the base, and the fan has a rotation period; an indicating unit includes a guide rail and an elastic member And a guiding member, the rail is coupled to the hub along a radial direction of the hub, the elastic member is coupled between the rail and the guiding member, the guiding member is disposed in the rail, and the rotation period of the fan is matched Reciprocating displacement relative to the axis of the hub; and a circuit unit electrically connected to the fan, the circuit unit controlling the rotation period of the fan. The fan module of claim 1, wherein one end of the elastic member is connected to the guiding member, and the other end is connected to a side of the rail adjacent to the hub. The fan module of claim 1, wherein one end of the elastic member is connected to the guiding member, and the other end is connected to a side of the guiding rail away from the hub. The fan module of claim 1, further comprising a fixing member disposed on the other side of the hub opposite to the base, the fixing member having a groove along a radial direction of the hub The rail is coupled to the one end of the hub to be engaged in the groove. The fan module of claim 1, wherein the indicator surface is coated with a luminescent material or/and a light absorbing material. The fan module of claim 1, wherein the circuit unit includes a rotational speed sensor for detecting the rotation period. The fan module of claim 1, further comprising a light-emitting component disposed on the other side of the hub opposite to the base, the light-emitting component being electrically connected to the circuit unit for emitting a light to the guide The guide receives the light and transmits the light to the outside of the guide rail. The fan module of claim 7, 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 7, wherein the material of the indicator is glass, a light transmissive polymer or a reflective polymer. The fan module of claim 7, further comprising an outer frame covering the base, the light emitting element being disposed on a side of the outer frame opposite to the base, the fan being disposed on the base and the Between the outer frames, and the hub of the fan is provided with a light guiding member, one end of the light guiding member corresponding to the light emitting element, and the other end corresponding to the guiding light, the light emitting element emitting the light to the light guiding member, the light guiding light The piece guides the light into the rail. The fan module of claim 7, 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 surface along the radial direction of the hub, and corresponding to the light emitting element, the light emitting element emits the light to the light guide member, and the light guide member guides the light into the guide rail. The fan module of claim 10 or 11, wherein the light guide member is an optical fiber, the light guide member has a first end and a second end, the first end being located at the axis of the hub, the first The two ends correspond to the guide rail, and the light emitting element corresponds to the first end, The illuminating element emits the light to the first end, and the light is transmitted to the second end via the first end of the light guiding member. The fan module of claim 12, wherein the first end of the light guiding member has a slope, and the slope is inclined from a side of the first end adjacent to the light emitting element toward a side away from the light emitting element. And forming a oblique cut at the first end, the light entering the light guide through the oblique cut.