TWM622941U - Optical fan - Google Patents

Abstract

An optical fan comprises: a bearing seat, a coil group, a circuit board, a fan blade and an optical element. The bearing seat is provided with a central shaft, and the central shaft has a shaft hole. The coil set is arranged on the bearing seat. The circuit board is located under the carrier and is electrically connected to the coil assembly, and is electrically connected to at least one light source generating element. The fan blade includes a hub and a plurality of blades, the hub is provided with a hollow shaft, the hollow shaft penetrates into the shaft hole, so that the hollow shaft corresponds to the light source generating element, and a through hole and a through hole are arranged on the hub. The hub extends to the mounting part of the blade, and the through hole communicates with the hollow shaft. The optical element is disposed in the through hole and the mounting portion. After the light source generating element is lit, the light passes through the hollow shaft, is guided through the optical element and displayed on the hub and the blade.

Description

Optical fan

This creation relates to a kind of fan, especially an optical fan with the effect of displaying light source when the fan blades of the fan rotate.

A small fan (Computer fan) is a fan for cooling the computer case or cooling fins, which may be inside the case or on the outer edge of the case, or installed on the cooling fins. The purpose of the fan is to bring cooler air inside the case, push out the warmer air inside, or pass the air through the heat sink to cool other components. Axial fans are commonly used in computers, and sometimes centrifugal fans are used. Generally, cooling fans come in some standard sizes and are powered and controlled using a 3-pin or 4-pin fan electronics connector.

In recent years, in addition to the improvement of basic functions such as mute, power consumption and fault detection, the appearance of computer fans with various shapes and lighting effects has also evolved. For example, a row of light-emitting diodes is installed on the fan blade hub of the fan. After being controlled by the IC of the circuit, the fan blade starts to rotate. While rotating, it can present a series of 3D image patterns, numbers or texts, which is cool. lifelike. This is the so-called persistence of vision phenomenon, which means that when the human eye is observing the scene, the light signal is transmitted to the brain nerve, and it takes a short period of time. After the action of the light ends, the visual image does not disappear immediately, and the human eye can continue to Holding its image for about 0.1 seconds, this residual vision is called persistence of vision.

Although the above-mentioned fan has the effect of light display, the overall structure and circuit design are relatively complicated, and the manufacturing cost is high, and the price of the relative fan is also increased accordingly.

Therefore, the main purpose of this creation is to solve the lack of tradition. This creation uses a simple structural design to achieve various lighting effects in the rotation of the fan blades.

In order to achieve the above-mentioned purpose, the present invention provides an optical fan, including: a bearing base, a coil set, a circuit board, a fan blade and an optical element. The center of the bearing seat protrudes upward to form a central shaft, and the central shaft has a shaft hole. The coil set is arranged on one side of the bearing base. The circuit board is disposed on the other side of the carrier and is electrically connected with the coil assembly, and has at least a pair of light source generating elements corresponding to the central axis. The fan blade includes a hub and a plurality of blades extending radially outward from the hub, the hub is provided with a hollow shaft, the hollow shaft penetrates into the shaft hole, so that the hollow shaft corresponds to the light source. In addition, a through hole and a mounting portion are arranged on the hub, and the through hole communicates with the mounting portion and the hollow shaft. The optical element is disposed in the through hole and the mounting portion. Wherein, the light after the light source generating element is lit will pass through the hollow shaft and be guided to the top surface of the wheel hub through the optical element for display.

In an embodiment of the present invention, it further includes a fan frame, the bearing seat on the fan frame and a peripheral wall portion surrounding the bearing seat, and a coil assembly for assembling the coil set is left between the outer circumference of the central shaft and the peripheral wall portion and the assembly space of the fan blade.

In an embodiment of the present invention, at least one set of bearings connected to the hollow shaft is disposed in the shaft hole.

In an embodiment of the present invention, the bearing is an oil-impregnated bearing.

In an embodiment of the present invention, a bottom cover is sealed on the other side of the carrier, and the circuit board is closed with the bottom cover.

In an embodiment of the present invention, a magnetic element is disposed on the inner wall of the wheel hub, and the magnetic element corresponds to the coil set.

In an embodiment of the present invention, the mounting portion is a grooving groove, a groove or a grouting groove.

In an embodiment of the present invention, two ends of the optical element respectively have a light refraction surface.

In an embodiment of the present invention, the optical element is made of a plurality of optical fibers with thin diameters, one or more of the optical elements can be inserted into the hollow shaft, and then the optical elements of each An element extending from the through hole is mounted in each of the mounting portions on the blades.

In an embodiment of the present invention, the mounting portion is disposed on the top surface of the hub and the blade.

In one embodiment of the present invention, the mounting portion is disposed on the top surface of the hub and inside the blades, and at least one viewing window is opened on the path of the mounting portion, after the optical element is mounted on the mounting portion , the window exposes part of the optical element.

In an embodiment of the present invention, the light source generating element is a light-emitting diode, and the light-emitting diode is a single-color light-emitting diode or a multi-color light-emitting diode.

In an embodiment of the present invention, the mounting portion extends from the hub to the blade.

In an embodiment of the present invention, a reflection layer is provided on the light refraction surface of the optical element.

The technical content and detailed description of this creation are now described as follows with the drawings:

Please refer to FIGS. 1-3 , which are an exploded view of the optical fan according to the first embodiment of the present invention, a three-dimensional assembly of FIG. 1 , and a schematic side cross-sectional view of FIG. 2 . As shown in the figure: the optical fan of this creation includes: a fan frame 1 , a coil assembly 2 , a circuit board 3 , a fan blade 4 , an optical element 5 and a cover plate 6 . Wherein, when the fan blade 4 rotates, the light source generated by the circuit board 3 will be guided and projected onto the optical element 5 through the coil group 2, so that the rotating fan blade 4 has the effect of optical display.

The fan frame 1 has a bearing seat 11 and a peripheral wall 12 surrounding the bearing seat 11. A central shaft 13 protrudes upward from the inner center of the bearing seat 11. The central shaft 13 has a shaft hole 131. An assembly space 14 is left between the outer periphery of the central shaft 13 and the peripheral wall portion 12 , and the assembly space 14 is used to assemble the coil set 2 and the fan blade 4 . In addition, at least one bearing 15 is disposed in the shaft hole 131 of the central shaft 13 to provide a bearing for the fan blade 4 to rotate smoothly. When the circuit board 3 is disposed on the other side of the carrier 11 , the carrier 11 seals a bottom cover 16 on the bottom of the carrier 11 to prevent the circuit board 3 from being exposed. In this drawing, the bearing 15 is an oil-impregnated bearing.

The coil set 2 is assembled on the outer circumference of the central axis 13 on one side of the bearing seat 11 in the assembly space 14 , and the coil set 2 is electrically connected with the circuit board 3 arranged on the other side of the bearing seat 11 . The board 3 provides the electrical power required by the coil set 2 .

The circuit board 3 is disposed on the other side of the bearing base 11 in the opposite direction to the coil assembly 2 . In addition to being electrically connected to the coil set 2, the circuit board 3 further includes a light source generating element 31 and some control circuit components (not shown in the figure). In this figure, the light source generating element is a light-emitting diode, and the light-emitting diode is a single-color light-emitting diode or a multi-color light-emitting diode.

The fan blade 4 includes a hub 41 and a plurality of blades 42 extending radially outward from the hub. The hub 41 is provided with a hollow shaft 43 and a magnetic element 44 . When the fan blade 4 is assembled in the assembly space 14 , the hollow shaft 43 penetrates into the bearing 15 arranged in the central shaft 13 , so that the magnetic element 44 corresponds to the coil set 2 , and the hollow shaft 43 is Corresponding to the light source generating element 31 of the circuit board 3 , the light after the light source generating element 31 is lit will pass through the hollow shaft 43 . After the coil assembly 2 generates a magnetic force, the magnetic element 44 arranged inside the hub 41 can be pushed to rotate the fan blade 4 . In addition, the hub 41 is provided with a through hole 45 and a mounting portion 46 extending from the top surface of the hub 41 to the top surface of the blade 42 . The through hole 45 communicates with the hollow shaft 43 . In this figure, the mounting portion 46 is a slot, groove or slot.

The optical element 5 is mounted on the mounting portion 46 and has a light refraction surface 51 at its upper end. The light refraction surface 51 is located in the through hole 45 and corresponds to the hollow axis 43 . The light refraction surface 51 can be The light passing through the hollow shaft 43 is refracted and incident inside the optical element 5 , and the light is guided out by the optical element 5 . In this figure, the optical element 5 is made of a light-like optical fiber material.

The cover plate 6 is disposed on the top surface of the hub 41 of the fan blade 4. After the optical element 5 is installed on the hub 41 and the blade 42, the cover plate 6 is used to cover the top surface of the hub 41. , so that the outer surface of the hub 41 is more complete.

When the invention is in use, after the circuit board 3 is turned on, the coil set 2 is driven by the circuit board 3 to make the fan blade 4 rotate. At the same time, the light generated by the light source generating element 31 illuminated by the circuit board 3 will be irradiated to the light refraction surface 51 of the optical element 5 through the hollow shaft 43, and the light will be refracted by the light refraction surface 51 and enter the optical element. Inside 5, the optical element 5 guides the light to the blade 42, so it can be seen that the rotating fan blade 4 produces a cool light display effect.

Please refer to FIG. 4 , which is a schematic side cross-sectional view of an optical element according to the second embodiment of the present invention. Please also refer to FIG. 3 . As shown in the figure, the optical element 5 of this embodiment is substantially the same as the optical element 5 of the first embodiment, the difference lies in that the two ends of the optical element 5 of this embodiment have a light refraction surface 51 and 52 respectively.

The light generated by the light source generating element 31 will be irradiated to the light refraction surface 51 of the optical element 5 through the hollow shaft 43, and the light will be refracted into the optical element 5 through the light refraction surface 51, and the optical element 5. After the light is directed to the light refraction surface 52 at the other end, the light refraction surface 52 will refract the light, so when the fan blade 4 rotates, it can be seen that the rotating fan blade 4 produces a cool light display effect.

Please refer to FIGS. 5 and 6 , which are a side cross-sectional view of an optical fan according to the third embodiment of the present invention and a top-view schematic diagram of the fan blade in FIG. 5 . As shown in the figure: this embodiment is roughly the same as the first embodiment, the difference lies in that the optical element 5 is made of a plurality of optical fibers with thin diameters, and one or more optical elements 5a can be inserted into the optical element 5a. Inside the hollow shaft 43 , each optical element 5 a is pulled out and extended from the through hole 45 and installed in each of the mounting portions 46 of the blades 42 .

The light generated by the light source generating element 31 will be irradiated to the light refraction surface 51 of the optical element 5 through the hollow shaft 43 , and the light will be refracted into the inside of the optical element 5 through the light refraction surface 51 , and the optical element 5 will refract the light. The light is guided to each blade 42, so when the fan blade 4 is rotating, it can be seen that the rotating fan blade 4 produces a cool light display effect.

Please refer to FIG. 7 , which is a three-dimensional schematic diagram of the appearance of the fan blade according to the fourth embodiment of the present invention. Please also refer to FIG. 3 . As shown in the figure: this embodiment is substantially the same as the first and third embodiments, the difference lies in that the mounting portion 46a is arranged inside the blade 42, and the blades 42 along the path of the mounting portion 46a are provided with At least one viewing window 47a, after the optical element 5 is mounted on the mounting portion 46a, the viewing window 47a only exposes part of the optical element 5.

The light generated by the light source generating element 31 will be irradiated to the light refraction surface 51 of the optical element 5 through the hollow shaft 43, and the light will be refracted into the optical element 5 through the light refraction surface 51, and the window 47a will make the light refracted into the optical element 5. The light of the optical element 5 is exported, so when the fan blade 4 rotates, it can be seen that the rotating fan blade 4 produces a cool light display effect.

Further, a reflective layer is provided on the light refraction surfaces 51 and 52 of the optical element 5 . The reflective layer can not only refract light effectively, but also prevent light leakage.

However, the above descriptions are only the preferred embodiments of this creation, and are not intended to limit the scope of patent protection of this creation. Therefore, any equivalent changes made by using the contents of the description or drawings of this creation are equally included in the rights of this creation. Within the scope of protection, I agree to Chen Ming.

1: fan frame 11: Bearing seat 12: Peripheral wall 13: Central axis 131: Shaft hole 14: Assembly space 15: Bearings 16: Bottom cover 2: Coil set 3: circuit board 31: Light source generating element 4: fan blade 41: Wheels 42: Blades 43: Hollow shaft 44: Magnetic components 45: Through hole 46, 46a: Installation part 47a: Windows 5, 5a: Optical components 51, 52: light refraction surface 6: Cover

Figure 1 is an exploded schematic diagram of the optical fan according to the first embodiment of the present invention;

Fig. 2 is a schematic three-dimensional combined view of Fig. 1;

Fig. 3, is the side sectional schematic diagram of Fig. 2;

FIG. 4 is a schematic side cross-sectional view of the optical element of the second embodiment of the present invention;

FIG. 5 is a schematic side sectional view of the optical fan according to the third embodiment of the present invention;

Fig. 6, is the top view schematic diagram of the fan blade of Fig. 5;

FIG. 7 is a three-dimensional schematic diagram of the appearance of the fan blade according to the fourth embodiment of the present invention.

1: fan frame

11: Bearing seat

12: Peripheral wall

13: Central axis

14: Assembly space

15: Bearings

16: Bottom cover

2: Coil set

3: circuit board

31: Light source generating element

4: fan blade

41: Wheels

42: Blades

43: Hollow shaft

45: Through hole

46: Installation Department

5: Optical Components

51: light refraction surface

6: Cover

Claims (14)

An optical fan comprising: a bearing seat, the inner center of which is protruded upward to form a central shaft, and the central shaft has a shaft hole; a coil set, which is arranged on one side of the bearing seat; a circuit board, which is disposed on the other side of the bearing base and is electrically connected with the coil assembly, and has at least a pair of light source generating elements corresponding to the central axis; A fan blade includes a hub and a plurality of blades extending radially outward from the hub, the hub is provided with a hollow shaft, the hollow shaft penetrates the shaft hole, so that the hollow shaft corresponds to the light source generating element; in addition, a through hole and a mounting portion are arranged on the hub, and the through hole is communicated with the mounting portion and the hollow shaft; an optical element disposed in the through hole and the mounting portion; Wherein, after the light source generating element is lit, the light will pass through the hollow shaft, and be guided by the optical element to be displayed on the top surface of the wheel hub. The optical fan according to claim 1, further comprising a fan frame, the bearing seat on the fan frame and a peripheral wall portion surrounding the bearing seat, and an assembly is left between the outer periphery of the central shaft and the peripheral wall portion The assembly space of the coil group and the fan blade. The optical fan according to claim 1, wherein at least one set of bearings connected to the hollow shaft is disposed in the shaft hole. The optical fan according to claim 3, wherein the bearing is an oil-impregnated bearing. The optical fan of claim 1, wherein a bottom cover is sealed on the other side of the bearing base, and the circuit board is closed with the bottom cover. The optical fan according to claim 1, wherein a magnetic element is disposed on the inner wall of the hub, and the magnetic element corresponds to the coil set. The optical fan of claim 1, wherein the mounting portion is a grooving groove, a groove or a grooving groove. The optical fan according to claim 1, wherein two ends of the optical element respectively have a light refraction surface. The optical fan according to claim 1, wherein the optical element is made of a plurality of optical fibers with thin diameters, one or more of the optical elements can be inserted into the hollow shaft, and then each optical element can be inserted into the hollow shaft. The optical element extending from the through hole is installed in each of the installation portions on the blades. The optical fan of claim 1, wherein the mounting portion is provided on the top surface of the hub and the blade. The optical fan according to claim 1, wherein the mounting portion is disposed on the top surface of the hub and inside the blades, and at least one viewing window is opened on the path of the mounting portion, and the optical element is mounted on the After installation, the window exposes part of the optical element. The optical fan of claim 1, wherein the light source generating element is a light-emitting diode, and the light-emitting diode is a single-color light-emitting diode or a multi-color light-emitting diode. The optical fan of claim 1, wherein the mounting portion extends from the hub to the blade. The optical fan according to claim 1, wherein a reflection layer is provided on the light refraction surface of the optical element.

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