CN114635864A

CN114635864A - Fan assembly

Info

Publication number: CN114635864A
Application number: CN202011483403.8A
Authority: CN
Inventors: 黄顺治; 吕景豫; 黄凯彦; 吴亮余; 李德瑞
Original assignee: Giga Byte Technology Co Ltd
Current assignee: Giga Byte Technology Co Ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2022-06-17
Anticipated expiration: 2040-12-16
Also published as: CN114635864B

Abstract

The invention provides a fan assembly. The fan assembly comprises a base, a fan, a light-emitting unit and a lamp effect element. The fan is rotatably arranged above the base and comprises a central part and a plurality of fan blades extending outwards from the central part, wherein each fan blade is provided with a fan blade top surface far away from the base. The light-emitting unit is arranged on the base and is positioned between the base and the central part of the fan. The light effect element is arranged on the base and surrounds the light emitting unit, the projection of the light effect element on the base is larger than the projection of the fan on the base, the height of the light effect element protruding out of the base is smaller than the distance between the top surface of the fan blade and the base, the light effect element comprises an inclined inner surface, and light emitted by the light emitting unit is suitable for irradiating the inclined inner surface and emitting towards the direction far away from the base.

Description

Fan assembly

Technical Field

The present invention relates to a fan assembly, and more particularly, to a fan assembly with special visual effects.

Background

With the increasing visual demands of users, it is a research goal to provide special visual effects to users on the premise of considering heat dissipation efficiency, in addition to providing heat dissipation effects to the fan assembly on the motherboard.

Disclosure of Invention

The present invention is directed to a fan assembly that can provide both heat dissipation and special visual effects.

The invention discloses a fan assembly, which comprises a base, a fan, a light-emitting unit and a light-effect element. The fan is rotatably arranged above the base and comprises a central part and a plurality of fan blades extending outwards from the central part, wherein each fan blade is provided with a fan blade top surface far away from the base. The light-emitting unit is arranged on the base and is positioned between the base and the central part of the fan. The light effect element is arranged on the base and surrounds the light emitting unit, the projection of the light effect element on the base is larger than the projection of the fan on the base, the height of the light effect element protruding out of the base is smaller than the distance between the top surface of the fan blade and the base, the light effect element comprises an inclined inner surface, and light emitted by the light emitting unit is suitable for irradiating the inclined inner surface and emitting towards the direction far away from the base.

In an embodiment of the invention, each of the fan blades includes a fan blade bottom surface opposite to the fan blade top surface, and a height of the lamp effect element protruding from the base is less than or equal to a distance between the fan blade bottom surface and the base.

In an embodiment of the invention, the fan assembly further includes a fan frame disposed on the base and surrounding the fan and the light effect element, and a height of the fan frame protruding from the base is greater than or equal to a distance between a top surface of the fan blade and the base.

In an embodiment of the invention, the fan assembly further includes an arc-shaped reflective cover disposed on a bottom surface of a central portion of the fan and rotating with the rotation of the fan, the arc-shaped reflective cover includes an opening, and a portion of the light emitted by the light-emitting unit is adapted to be reflected by the arc-shaped reflective cover and pass through the opening to be emitted onto the inclined inner surface.

In an embodiment of the invention, the fan assembly further includes a light-condensing element, each of the fan blades includes a blade bottom surface opposite to the blade top surface, the light-condensing element is disposed on the blade bottom surface of one of the fan blades and extends toward the base, and a portion of the light emitted by the light-emitting unit is suitable for being focused on the inclined inner surface by the light-condensing element.

In an embodiment of the invention, the light-gathering element is disposed on an end of the bottom surface of the fan blade away from the central portion.

In an embodiment of the invention, the light-gathering element is a strip-shaped structure, and extends from an end of the bottom surface of the fan blade close to the central portion to an end far from the central portion.

In an embodiment of the invention, an inclination angle of the inclined inner surface is between 30 degrees and 60 degrees.

In an embodiment of the invention, the light emitting unit includes a red light emitting diode, a green light emitting diode and a blue light emitting diode.

In an embodiment of the invention, the lamp effect element is in a closed ring shape.

Based on the above, the light emitting unit of the fan assembly of the invention is located between the base and the central portion of the fan, and the light effect element is disposed on the base and surrounds the light emitting unit. The projection of the lamp effect element on the base is larger than that of the fan on the base, and the height of the lamp effect element protruding out of the base is smaller than the distance between the top surface of the fan blade and the base. The light emitted by the light-emitting unit can irradiate the inclined inner surface of the lamp effect element and can be reflected by the inclined inner surface to emit towards the direction far away from the base. Through the design, a user can see the visual effect generated by the light reflected by the lamp effect element at the front side of the fan assembly. In addition, because the height of the light effect element protruding out of the base is less than the distance between the top surface of the fan blade and the base, the low-height light effect element is less prone to damage the wind flow of the fan, and a good heat dissipation effect can be still kept.

Drawings

Fig. 1 is a schematic cross-sectional view of a fan assembly according to an embodiment of the invention.

Fig. 2 is a top schematic view of the fan assembly of fig. 1.

Fig. 3 is a schematic view of a lighting unit of the fan assembly of fig. 1.

Fig. 4 is a cross-sectional view of a fan assembly according to another embodiment of the invention.

Fig. 5 is a schematic cross-sectional view of a fan assembly according to another embodiment of the invention.

Fig. 6 is a schematic view showing light rays of a light emitting unit of the fan assembly of fig. 5 being reflected by an arc type reflection cover.

Fig. 7 is a cross-sectional view of a fan assembly according to another embodiment of the invention.

Fig. 8 is a top schematic view of the fan assembly of fig. 7.

Fig. 9 is a schematic top view of a fan assembly according to another embodiment of the invention.

The reference numbers are as follows:

d1, D2 distance

H1, H2, H3 height

Angle of theta

100. 100a, 100b, 100c, 100d fan assembly

110: base

120, fan

121 central part

122 bottom surface of central part

124, fan blade

125 top surface of fan blade

126 bottom surface of fan blade

130 light emitting unit

132 red light emitting diode

134 green light emitting diode

136 blue light emitting diode

140 lamp effect element

142 inclined inner surface

150 frame of fan

160 arc type reflecting cover

162 opening of the container

170. 170d light-condensing element

Detailed Description

Fig. 1 is a schematic cross-sectional view of a fan assembly according to an embodiment of the invention. Fig. 2 is a top schematic view of the fan assembly of fig. 1. Referring to fig. 1 and fig. 2, in the present embodiment, the fan assembly 100 is disposed on a display card (not shown), for example, but the heat source applied by the fan assembly 100 is not limited thereto. The fan assembly 100 includes a base 110, a fan 120, a light emitting unit 130 and a lamp effect element 140.

The fan 120 is rotatably disposed above the base 110. The fan 120 includes a central portion 121 and a plurality of blades 124 extending outwardly from the central portion 121. The light emitting unit 130 is disposed on the base 110 and located between the base 110 and the central portion 121 of the fan 120.

The lamp effect element 140 is disposed on the base 110 and surrounds the light emitting unit 130. As shown in fig. 2, in the present embodiment, the projection of the lamp effect element 140 on the base 110 is larger than the projection of the fan 120 on the base 110. Therefore, the light effect element 140 is not shielded by the fan 120, and the user can see the light effect element 140 at the front side (e.g., looking from the top to the bottom in fig. 1) of the fan assembly 100.

In the present embodiment, the lamp effect element 140 includes an inclined inner surface 142 inclined toward the light emitting unit 130. The inclination angle θ of the inclined inner surface 142 is between 30 degrees and 60 degrees, for example, 45 degrees, but the inclination angle θ of the inclined inner surface 142 is not limited thereto. In addition, in the embodiment, the lamp effect element 140 has a closed ring shape, but in other embodiments, the lamp effect element 140 may have a non-closed ring shape.

In the present embodiment, the light emitting units 130 can emit light radially, for example, and the light emitted by the light emitting units 130 is suitable for being irradiated onto the inclined inner surface 142 of the lamp effect element 140 and emitted in a direction away from the base 110. Therefore, the user can see the visual effect generated by the light reflected by the lamp effect element 140 on the front side of the fan assembly 100.

It is noted that, as shown in fig. 1, the fan 124 has a fan top surface 125 far away from the base 110 and a fan bottom surface 126 opposite to the fan top surface 125. The height H1 of the light effect element 140 protruding from the base 110 is smaller than the distance D1 between the top surface 125 of the fan blade and the base 110. In the present embodiment, the height H1 of the light effect element 140 protruding from the base 110 is less than or equal to the distance D2 between the bottom surface 126 of the fan blade and the base 110. The fan assembly 100 can maintain a good heat dissipation effect because the design of the low-height lamp effect element 140 is less likely to damage the wind flow of the fan 120.

In addition, the fan assembly 100 may further optionally include a fan frame 150. As shown in fig. 1, the fan frame 150 is disposed on the base 110 and surrounds the fan 120 and the light effect element 140. The height H2 of the fan frame 150 protruding from the base 110 is greater than or equal to the distance D1 between the top surfaces 125 of the fan blades and the base 110, so as to protect the fan 120 and reduce the probability of foreign objects directly contacting the fan 120. In addition, the fan frame 150 can be used to prevent the user's hand from directly contacting the rotating fan blades 124.

Fig. 3 is a schematic view of a lighting unit of the fan assembly of fig. 1. Referring to fig. 3, in the present embodiment, the light emitting unit 130 includes a red light emitting diode 132, a green light emitting diode 134 and a blue light emitting diode 136. Of course, in other embodiments, the light emitting unit 130 may only have a single color led, and the kind of the light emitting unit 130 is not limited thereto.

The light emitting unit 130 can be controlled by a controller (not shown) to generate different light emitting effects. Specifically, the manufacturer may measure the waveform of the rotation speed of the fan 120 by using TACHO Pin (not shown) of the fan 120 according to the desired lighting effect, and write the related information into the controller, and the controller may control the switches of the red, green and

blue leds

132, 134, 136 in the light emitting unit 130 according to the rotation speed to obtain different lighting effects. Alternatively, all colors that can be emitted by the light emitting unit 130 can be displayed on the lamp effect element 140.

Therefore, the user can see different colors or the effects of a horse race light, a gradation color, a breathing light effect, a flashing light effect, etc. on the light effect element 140. And due to the principle of persistence of vision, the light effects can be caused to appear in human eyes simultaneously or sequentially.

Fig. 4 is a cross-sectional view of a fan assembly according to another embodiment of the invention. Referring to fig. 4, the main difference between the fan assembly 100a of fig. 4 and the fan assembly 100 of fig. 1 is that, in the present embodiment, the height H3 of the light effect element 140 protruding from the base 110 is greater than the distance D2 between the bottom surface 126 of the fan blade and the base 110, and is less than the distance D1 between the top surface 125 of the fan blade and the base 110. Since the height H3 of the lamp element 140 is still low, the airflow of the fan 120 is less likely to be affected. In addition, the height of the lamp effect element 140 of fig. 4 is larger, so that the lamp effect element 140 of fig. 4 can have a larger inclined inner surface 142, and can provide a more prominent visual effect.

Fig. 5 is a cross-sectional view of a fan assembly according to another embodiment of the invention. Fig. 6 is a schematic view showing light rays of a light emitting unit of the fan assembly of fig. 5 being reflected by an arc type reflection cover. Referring to fig. 5 and 6, the main difference between the fan assembly 100b of fig. 5 and the fan assembly 100 of fig. 1 is that in the present embodiment, the fan assembly 100b further includes an arc-shaped reflective cover 160 disposed on a central bottom surface 122 of the central portion 121 of the fan 120 and rotating with the rotation of the fan 120.

As shown in fig. 6, in the present embodiment, the arc-shaped reflective cover 160 surrounds the light emitting unit 130 by 180 degrees, for example, but in other embodiments, the angle of the arc-shaped reflective cover 160 surrounding the light emitting unit 130 may be between 60 degrees and 240 degrees, and the angle of the arc-shaped reflective cover 160 surrounding the light emitting unit 130 is not limited thereto.

The arc reflector 160 includes an opening 162, and a portion of the light emitted from the light emitting unit 130 is directed away from the arc reflector 160 and directed toward the inclined inner surface 142 of the lamp effect element 140 in fig. 5. A portion of the light emitted from the light emitting unit 130 is suitable for being reflected by the arc reflector 160 and passing through the opening 162 of fig. 6 to the inclined inner surface 142 of the lamp effect element 140.

In other words, the light emitted from the light emitting unit 130 may be concentrated on a portion of the inclined inner surface 142 of the lamp effect element 140, so that the portion of the inclined inner surface 142 is particularly bright. In addition, since the arc type reflective cover 160 rotates along with the rotation of the fan 120, the whole inclined inner surface 142 of the lamp effect element 140 emits bright light uniformly in a visual retention manner. Of course, at a low rotation speed of the fan 120, since the visual residue is not obvious, the light can be reflected to different positions on the inclined inner surface 142 of the lamp effect element 140 by the rotating arc type reflector 160, and a dynamic light effect can be presented.

Fig. 7 is a cross-sectional view of a fan assembly according to another embodiment of the invention. Fig. 8 is a top schematic view of the fan assembly of fig. 7. Referring to fig. 7 and 8, a main difference between the fan assembly 100c of fig. 7 and the fan assembly 100 of fig. 1 is that in the present embodiment, the fan assembly 100c further includes a light-gathering element 170. The light-gathering element 170 is, for example, a convex lens or any element capable of gathering light. The light-gathering element 170 is disposed on the bottom surface 126 of at least one of the fan blades 124 and extends toward the base 110.

The light-concentrating element 170 is disposed on the fan blade bottom surface 126 (fig. 7) at an end remote from the central portion 121. A portion of the light emitted by the light emitting unit 130 is adapted to be focused on the inclined inner surface 142 by the light condensing element 170. Thus, the user can see the visual effect at one rotating and particularly bright spot. In other embodiments, the light-focusing element 170 may be disposed on multiple blades 124, or the light-focusing element 170 may be disposed on each blade 124, resulting in different visual effects.

Fig. 9 is a schematic top view of a fan assembly according to another embodiment of the invention. Referring to fig. 9, a main difference between the fan assembly 100d of fig. 9 and the fan assembly 100c of fig. 8 is that in the present embodiment, the light-gathering element 170d is a strip-shaped structure extending from an end of the fan blade 124 close to the central portion 121 to an end far from the central portion 121. Thus, the user can see a visual effect in the rotating and particularly bright stripe. Likewise, in other embodiments, the light-focusing element 170d may be disposed on multiple blades 124, or the light-focusing element 170d may be disposed on each blade 124, resulting in different visual effects.

In summary, the light emitting unit of the fan assembly of the present invention is located between the base and the central portion of the fan, and the light effect element is disposed on the base and surrounds the light emitting unit. The projection of the lamp effect element on the base is larger than that of the fan on the base, and the height of the lamp effect element protruding out of the base is smaller than the distance between the top surface of the fan blade and the base. The light emitted by the light-emitting unit can irradiate the inclined inner surface of the lamp effect element and can be reflected by the inclined inner surface to be emitted in the direction far away from the base. Through the design, a user can see the visual effect generated by the light reflected by the lamp effect element at the front side of the fan assembly. In addition, because the height of the lamp effect element protruding out of the base is less than the distance between the top surface of the fan blade and the base, the low-height lamp effect element is less prone to damage the wind flow of the fan, and a good heat dissipation effect can be still kept.

Claims

1. A fan assembly, comprising:

a base;

a fan rotatably disposed above the base and including a central portion and a plurality of blades extending outwardly from the central portion, wherein each of the plurality of blades has a blade top surface away from the base;

a light emitting unit disposed on the base and located between the base and the central portion of the fan; and

the lamp effect element is arranged on the base and surrounds the light emitting unit, the projection of the lamp effect element on the base is larger than the projection of the fan on the base, the height of the lamp effect element protruding out of the base is smaller than the distance between the top surface of the fan blade and the base, the lamp effect element comprises an inclined inner surface, and light emitted by the light emitting unit is suitable for irradiating the inclined inner surface and emitting towards the direction far away from the base.

2. The fan assembly of claim 1 wherein each of the plurality of fan blades includes a blade bottom surface opposite the blade top surface, the lamp effect element protruding from the base at a height that is less than or equal to the distance between the blade bottom surface and the base.

3. The fan assembly of claim 1, further comprising:

and the fan frame is arranged on the base and surrounds the fan and the lamp effect element, and the height of the fan frame protruding out of the base is more than or equal to the distance between the top surface of the fan blade and the base.

4. The fan assembly of claim 1, further comprising:

the arc-shaped reflecting cover is arranged on the bottom surface of the central part of the fan and rotates along with the rotation of the fan, the arc-shaped reflecting cover comprises an opening, and part of the light emitted by the light-emitting unit is suitable for being reflected by the arc-shaped reflecting cover and penetrating through the opening to be emitted onto the inclined inner surface.

5. The fan assembly of claim 1, further comprising:

and the light-gathering element is arranged on the bottom surface of the fan blade of one fan blade of the fan blades and extends towards the base, and part of light emitted by the light-emitting unit is suitable for being focused on the inclined inner surface by the light-gathering element.

6. The fan assembly of claim 5 wherein the light focusing element is disposed on the bottom surface of the fan blade at an end remote from the central portion.

7. The fan assembly as claimed in claim 5, wherein the light-gathering member is a strip-shaped structure extending from an end of the bottom surface of the fan blade near the central portion to an end far from the central portion.

8. The fan assembly of claim 1 wherein the sloped inner surface is sloped at an angle of between 30 degrees and 60 degrees.

9. The fan assembly of claim 1, wherein the light-emitting unit comprises a red led, a green led, and a blue led.

10. The fan assembly of claim 1 wherein the lamp element is in the form of a closed loop.