CN217502036U

CN217502036U - Luminous fan

Info

Publication number: CN217502036U
Application number: CN202220315302.8U
Authority: CN
Inventors: 姚竣元; 许文昉; 许嘉恒; 廖伟宏
Original assignee: Yiyi Jiangxi Electronic Technology Co ltd
Current assignee: Yiyi Jiangxi Electronic Technology Co ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-09-27
Anticipated expiration: 2032-02-16

Abstract

The utility model relates to a fan field discloses a luminous fan, include: the bearing seat is provided with a central shaft which is formed by upwards protruding the inner center of the bearing seat, and the central shaft is provided with a shaft hole; a circuit board, which is configured on the other side surface of the bearing seat and at least provided with a light source generating element corresponding to the middle shaft; the fan blade comprises a hub and a plurality of blades extending outwards from the hub in the radial direction, wherein the hub is provided with a hollow shaft center, and the hollow shaft center penetrates into the shaft hole so as to correspond to the light source generating element; in addition, a through hole is arranged on the hub; an optical element disposed in the hollow shaft core and extending out of the through hole on the surface of the blade; at least one optical element is arranged on the fan blade by utilizing a simple structural design, and a light source display state with light spots or light bars attached is formed on the optical element, so that the fan blade of the fan can achieve the light effect of various modeling changes in the rotation process.

Description

Luminous fan

Technical Field

The utility model relates to a fan field especially relates to a luminous fan.

Background

A small fan (Computer fan) is a fan for cooling a Computer case or heat sink fins, and may be installed inside the case or at the outer edge of the case, or on the heat sink fins. The purpose of the fan is to bring cooler air to the interior of the chassis, to exhaust warmer air from the interior, or to pass air over the heat sink to cool other components. Axial fans are commonly used in computers, and centrifugal fans are sometimes used. Typical heat dissipation fans have some standard size and are powered and controlled with 3-pin or 4-pin fan electrical connectors.

In recent years, small fans have been improved in basic functions such as muting, power consumption and fault detection, and have also developed computer fans with various shapes and lighting effects. For example, a row of light emitting diodes is mounted on a fan wheel hub of the fan, and after the IC control of a circuit, the fan blades start to rotate, so that a 3D image pattern, a figure or characters can be presented while the fan blades rotate, and the fan is cool and vivid. The phenomenon of persistence of vision is that when the human eye observes a scene, a light signal is transmitted to the brain nerve and a short time is needed, after the action of light is finished, the visual image does not disappear immediately, the human eye can still keep the image for about 0.1 second, and the persistence of vision is called persistence of vision.

Although the fan has a light display effect, the overall structure and circuit design are complicated, the manufacturing cost is high, and the price of the fan is increased.

SUMMERY OF THE UTILITY MODEL

The utility model overcomes the above insufficiency, and aims to provide a technical scheme which can solve the above problems.

A light-emitting fan, comprising: the bearing seat is provided with a central shaft which is formed by upwards protruding the inner center of the bearing seat, and the central shaft is provided with a shaft hole; the circuit board is arranged on the other side surface of the bearing seat, and at least one light source generating element corresponding to the central axis is arranged on the circuit board; the fan blade comprises a hub and a plurality of blades extending outwards from the hub in the radial direction, wherein the hub is provided with a hollow shaft center, and the hollow shaft center penetrates into the shaft hole so as to correspond to the light source generating element; in addition, a through hole is arranged on the hub; an optical element disposed in the hollow shaft core and extending out of the through hole on the surface of the blade; the optical element is provided with a light guide part and a light shielding layer covering the surface of the light guide part, the surface of the light shielding layer is provided with a plurality of light transmission parts, a light source of the light source generating element passes through the hollow axis and is guided to the light transmission parts through the optical element, and the light source is transmitted out of the light transmission parts and can be displayed on the surfaces of the hub and the blades.

As an improvement of the above technical solution, the light transmission part is a plurality of light transmission holes distributed irregularly.

As an improvement of the above technical solution, the light transmission part is a plurality of light transmission strips at intervals.

As an improvement of the above technical solution, the fan assembly further includes a fan frame, the fan frame is provided with the bearing seat and a peripheral wall portion enclosing the bearing seat, an assembly space for assembling the coil assembly and the fan blade is reserved between the outer periphery of the central shaft and the peripheral wall portion, and the coil assembly is disposed on the side surface of the bearing seat.

As an improvement of the above technical solution, the magnetic element is disposed on the inner wall of the hub, and the magnetic element corresponds to the coil assembly.

As an improvement of the above technical scheme, at least one group of bearings connected with the hollow shaft center is arranged in the shaft hole.

As one improvement of the above technical solution, the bearing is an oil bearing.

As an improvement of the above technical solution, the other side surface of the bearing seat is sealed with a bottom cover, and the circuit board is sealed by the bottom cover.

As an improvement of the above technical solution, the hub and the blade are provided with mounting portions on their surfaces.

As one improvement of the technical scheme, the mounting part is a caulking groove, a groove or a caulking groove.

As an improvement of the above technical solution, two ends of the optical element respectively have a light incident surface and a light emitting surface.

As an improvement of the above technical solution, the optical elements are a plurality of optical elements with a small wire diameter, one end of each of the plurality of optical elements is inserted into the hollow shaft, and the other end of each of the optical fiber rods extends from the through hole and is mounted on the surface of the blades.

As an improvement of the above technical solution, the optical elements are a plurality of optical elements with small wire diameter, each of the optical elements has different lengths, one end of each of the optical elements is aligned and then inserted into the hollow shaft center, and the other end of each of the optical elements is installed on the surface of the blade of the same blade by extending from the through hole, so as to form an arrangement state with different lengths.

As an improvement of the above technical solution, the light source generating element is a light emitting diode, and the light emitting diode is a monochromatic light emitting diode or a multicolor light emitting diode.

Compared with the prior art, the beneficial effects of the utility model are that: at least one optical element is arranged on the fan blade by utilizing a simple structural design, and a light source display state attached with a light spot or a light strip is formed on the optical element, so that the fan blade of the fan can achieve a light effect with various modeling changes in the rotation process.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is an exploded view of a light-emitting fan according to a first embodiment of the present invention

FIG. 2 is a schematic view of the three-dimensional assembly of FIG. 1

FIG. 3 is a partially enlarged external view of the optical element of FIG. 1;

FIG. 4 is a schematic side cross-sectional view of the optical element of FIG. 3;

fig. 5 is a partially enlarged external view of an optical element according to a second embodiment of the present invention;

FIG. 6 is a schematic side cross-sectional view of the optical element of FIG. 5;

FIG. 7 is a side cross-sectional schematic view of FIG. 2;

FIG. 8 is a schematic top view of a fan blade according to a third embodiment of the present invention;

fig. 9 is a schematic top view of a fan blade according to a fourth embodiment of the present invention.

In the figure: the fan-shaped component comprises a fan frame 1, a bearing seat 11, a peripheral wall part 12, a central shaft 13, a shaft hole 131, an assembly space 14, a bearing 15, a bottom cover 16, a coil group 2, a circuit board 3, a light source generating element 31, fan blades 4, a hub 41, blades 42, a hollow shaft center 43, a magnetic element 44, a through hole 45, an installation part 46,

optical elements

5, 5a and 5b, a light guide part 51, a light incoming surface 511, a light outgoing surface 512, a shielding layer 52, a light transmission part 53, a light transmission strip 54 and a cover plate 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-4 and 7, which are an exploded perspective view of the light-emitting fan of the first embodiment combined with the three-dimensional view of fig. 1, a partially enlarged external view of the optical device of fig. 1, a side cross-sectional view of the optical device of fig. 3, and a side cross-sectional view of fig. 2. As shown in the figure: a light-emitting fan, comprising: 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, at least one light emitting element 5 is installed on the surface of the blade 42 of the fan blade 4, when the fan blade 4 rotates, the light source generated by the circuit board 3 will irradiate the optical element 5, so that the blade surface of the rotating fan blade 4 has optical display effect.

The fan frame 1 has a bearing seat 11 and a peripheral wall 12 enclosing the bearing seat 11, a central shaft 13 is formed by upward protruding 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 12, and the assembly space 14 is used for assembling the coil assembly 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 carrying seat 11, the carrying seat 11 seals a bottom cover 16 at the bottom of the carrying seat 11 to prevent the circuit board 3 from being exposed. In the figure, the bearing 15 is an oil-impregnated bearing.

The coil assembly 2 is assembled on the outer periphery of the central axis 13 of one side surface of the bearing seat 11 in the assembling space 14, the coil assembly 2 is electrically connected with the circuit board 3 configured on the other side surface of the bearing seat 11, and the circuit board 3 provides the electric power required by the coil assembly 2.

The circuit board 3 is disposed on the other side of the supporting base 11 and disposed opposite to the coil assembly 2. In addition to the circuit board 3 electrically connected to the coil assembly 2, the circuit board 3 further includes a light source generating element 31 and a plurality of control circuit components (not shown). In the figure, the light source generating element 31 is a light emitting diode, which is a monochromatic light emitting diode or a polychromatic 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 disposed in the central shaft 13, so that the magnetic element 44 corresponds to the coil assembly 2, and the hollow shaft 43 corresponds to the light source generating element 31 of the circuit board 3, and the light source after the light source generating element 31 is turned on passes through the hollow shaft 43. In addition, after the coil assembly 2 generates magnetic force, the magnetic element 44 disposed inside the hub 41 can be pushed, so that the fan blade 4 can rotate. In addition, 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 are formed on the hub 41, and the through hole 45 communicates with the hollow shaft 43. In the figures, the mounting portion 46 is a caulking groove, channel or channel.

The upper end of the optical element 5 is inserted into the hollow shaft 43 from the through hole 45 of the hub 41, and corresponds to the light source generating element 21 of the circuit board 3, the portion of the optical element 5 not inserted into the through hole 45 and the hollow shaft 43 is mounted on the mounting portion 46, or is mounted on the top surface of the hub 41 and the surface of the blade 42 after passing through the through hole 45 of the hub 41. When the light source generating element 31 is turned on, the light source directly irradiates the light incident surface 511 of the optical element 5 inside the hollow shaft 43, so that the optical element 5 guides the light source out. The optical element 5 is an optical fiber, and has a light guide portion 51 and a light shielding layer (cladding layer) 52 covering the surface of the light guide portion 51, and a plurality of light transmitting portions 53 distributed irregularly are formed on the surface of the light shielding layer 52. When a light source (not shown) enters from the light incident surface 511 at one end of the light guide part 51, the light source is output from the light emitting surface 512 at the other end of the light guide part 51, and the light source is transmitted through the light transmitting parts 53 in the process of transmitting the light source in the light guide part 51 by the total internal reflection principle, so that a plurality of light spots or spaced light spots or light bars are seen to be attached to the surface of the optical element 5. In the present figure, the optical element 5 is a light guide portion, and the light-transmitting portion 53 of the optical element 5 is a light-transmitting hole.

The cover plate 6 is disposed on the top surface of the hub 41 of the fan blade 4, and after the optical element 5 is mounted on the surfaces of the hub 41 and the fan blade 42, the cover plate 6 is sealed on 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, the coil assembly 2 is driven by the circuit board 3 to rotate the fan blades 4. Meanwhile, the circuit board 3 also lights the light source generating element 31, so that the light source generated by the light source generating element 31 passes through the hollow shaft center 43 and is output from the light incident surface 511 of the optical element 5, and besides the light source is output from the light emitting surface 512 at the other end of the light guide part 51, when the light source is transmitted in the light guide part 51 by total internal reflection, the light source is transmitted out from the light transmitting parts 53 when passing through the light transmitting parts 53, and therefore, the rotating fan blades 4 can be seen to generate a dazzling light source display effect.

Please refer to fig. 5 and 6, which are a partially enlarged external view of the optical device of the second embodiment and a schematic side sectional view of the optical device of fig. 5. As shown in the figure: the present embodiment a is substantially the same as the first embodiment, except that a plurality of spaced light-transmitting strips 54 are disposed on the optical element 5, and when the light source passes through the light-transmitting strips 54 during the process of transmitting the light source in the light-guiding portion 51 by total internal reflection, the light source will be transmitted out from the light-transmitting strips 54, so that the rotating fan blades 4 can be seen to generate a cool light source display effect.

Fig. 8 is a schematic top view of a fan blade according to a third embodiment, and also refer to fig. 7. As shown in the figure: this embodiment is substantially the same as the first embodiment except that the optical element 5 is formed by a plurality of optical elements 5a having a small wire diameter, one end of each of the plurality of optical elements 5a is inserted into the hollow shaft 43, and the other end of each of the plurality of optical elements 5a is attached to the surface of the blade 42 by being pulled out and extended from the through hole 45.

The light source generated by the light source generating element 31 irradiates the optical elements 5a, and the optical elements 5a guide the light source to each blade 42, so that when the fan blade 4 rotates, the rotating fan blade 4 can be seen to generate a cool light display effect.

Fig. 9 is a schematic top view of a fan blade according to a fourth embodiment, and also refer to fig. 7. As shown in the figure: the present embodiment is substantially the same as the third embodiment, except that the optical elements 5 are a plurality of optical elements 5b with a small wire diameter, the lengths of the optical elements 5b are all different, one end of each optical element 5b is aligned and inserted into the hollow shaft 43, and the other end of each optical element 5b is pulled out from the through hole 45 and extends to be mounted on the surface of the blade 42 of the same blade, so as to form an arrangement state with different lengths.

The light source generated by the light source generating element 31 irradiates the optical elements 5b, and the optical elements 5b guide the light source to each blade 42, so that when the blade 4 rotates, the rotating blade 4 can generate a cool light display effect.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. A light-emitting fan, comprising:

the bearing seat is provided with a middle shaft which is formed by upward protrusion at the center and is provided with a shaft hole;

a circuit board, which is configured on the other side surface of the bearing seat and at least provided with a light source generating element corresponding to the middle shaft;

the fan blade comprises a hub and a plurality of blades extending outwards from the hub in the radial direction, wherein the hub is provided with a hollow shaft center, and the hollow shaft center penetrates into the shaft hole so as to correspond to the light source generating element; in addition, a through hole is arranged on the hub;

an optical element disposed in the hollow shaft core and extending out of the through hole on the surface of the blade;

the optical element is provided with a light guide part and a light shielding layer covering the surface of the light guide part, the surface of the light shielding layer is provided with a plurality of light transmission parts, a light source of the light source generating element is guided to the light transmission parts through the optical element through the hollow shaft center, the light source is transmitted out of the light transmission parts, and the light can be displayed on the surfaces of the hub and the blades.

2. The light-emitting fan according to claim 1, wherein: the light transmission part is a plurality of light transmission holes which are distributed irregularly.

3. The light-emitting fan according to claim 1, wherein: the light transmission part is a plurality of light transmission strips at intervals.

4. The light-emitting fan according to claim 1, wherein: the fan frame is provided with the bearing seat and a peripheral wall part enclosing the bearing seat, an assembly space for assembling the coil group and the fan blade is reserved between the periphery of the center shaft and the peripheral wall part, and the coil group is arranged on the side surface of the bearing seat.

5. The lighting fan as defined in claim 4, wherein: the inner wall of the hub is provided with a magnetic element, and the magnetic element corresponds to the coil group.

6. The light-emitting fan according to claim 1, wherein: at least one bearing for assembling the hollow axle center is arranged in the axle hole.

7. The lighting fan as defined in claim 6, wherein: the bearing is an oil bearing.

8. The light-emitting fan according to claim 1, wherein: the other side of the bearing seat is sealed with a bottom cover, and the circuit board is sealed by the bottom cover.

9. The light-emitting fan according to claim 1, wherein: the surface of the hub and the blade is provided with a mounting part.

10. The light-emitting fan according to claim 9, wherein: the mounting portion is a caulking groove, a groove or a caulking groove.

11. The lighting fan as defined in claim 1, wherein: two ends of the optical element are respectively provided with a light incident surface and a light emergent surface.

12. The lighting fan as defined in claim 1, wherein: the optical elements are a plurality of optical elements with thin wire diameters, one ends of the optical elements are inserted into the hollow shaft center, and the other end of each optical fiber strip extends from the through hole and is arranged on the surfaces of the blades.

13. The light-emitting fan according to claim 1, wherein: the optical elements are a plurality of optical elements with thin wire diameters, the optical elements are different in length, one ends of the optical elements are aligned and then inserted into the hollow shaft center, and the other ends of the optical elements are installed on the surface of the blade of the same piece in a manner that the other ends of the optical elements extend from the through holes to form an arrangement state with different lengths.

14. The lighting fan as defined in claim 1, wherein: the light source generating element is a light emitting diode, and the light emitting diode is a monochromatic light emitting diode or a multicolor light emitting diode.