A laser-engraved RGB light ring structure of a fan

Abstract

The utility model belongs to fan technical field discloses a fan's laser carving RGB light ring structure, including annular light guide ring and RGB LED lamp strip, the outer wall of annular light guide ring is equipped with annular groove, the RGB LED lamp strip is embedded in annular groove, annular light guide ring is installed in the mounting groove of fan body through the connecting piece, and the side of annular light guide ring near the fan body air outlet is provided with the arc light guide portion that is set in the horn shape, the utility model discloses a horn-shaped arc light guide portion that is set in the side of annular light guide ring near the air outlet, and the direct light of LED lamp pearl is reflected and diffused to arc inner wall, can form the even annular halo, its horn-shaped structure can further expand the visual coverage range of light, enhances the whole light and shadow effect, and the annular groove groove bottom surface forms the light transmission pattern area through laser engraving, and the light transmission rate difference forms the light and shade contrast in the engraving area and non-engraving area, and the area is big, can sketch out the preset pattern, satisfies the individualized light and shadow pattern customization demand of different users.

Description

Technical Field

[0001] This utility model relates to the field of fan technology, and in particular to a laser-engraved RGB halo structure for a fan. Background Technology

[0002] As users increasingly demand higher standards for product design and personalized experiences, traditional fans that only focus on ventilation and heat dissipation are no longer sufficient to meet market needs. Fans that combine aesthetics and functionality are gradually becoming a development trend. Among them, fans with decorative lighting are favored by consumers because they can create a unique atmosphere and enhance visual effects.

[0003] For example, Chinese utility model patent application number 2017208466070 discloses a detachable light-emitting fan, including a fan frame and a fan located inside the fan frame. The fan includes fan blades and a hub. An arc-shaped light-emitting body is provided at the end of the fan blades away from the hub. A light-transmitting ring is provided between the fan frame and the fan blades. The light-transmitting ring includes a first ring and a second ring. The outer diameter of the first ring is larger than that of the second ring. A buckle is provided on the first ring for engaging with a slot on the inner wall of the fan frame. There is an accommodating space between the second ring and the fan frame. A light-emitting LED strip is provided in the accommodating space. The light-emitting LED strip is detachably installed on the inner wall of the fan frame. The light-emitting LED strip is connected to a power source through a wire. The fan frame has a wire outlet for the light-emitting LED strip.

[0004] The aforementioned fan simply has a light-emitting ring structure at the air outlet, which has a small light-emitting area, poor visual effect, and cannot be customized with personalized light and shadow graphics, thus failing to meet the needs of existing consumers.

[0005] To address this, a laser-engraved RGB halo structure for the fan is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a laser-engraved RGB halo structure for a fan, thereby solving or at least alleviating one or more of the aforementioned problems and other issues existing in the prior art.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include: A laser-engraved RGB halo structure for a fan includes an annular light guide ring and an RGB LED light strip. The outer wall of the annular light guide ring has an annular groove, and the RGB LED light strip is embedded in the annular groove. The annular light guide ring is installed in the mounting slot of the fan body via a connector; The annular light guide ring has a trumpet-shaped arc-shaped light guide section on the side near the air outlet of the fan body.

[0008] In a laser-engraved RGB halo structure for a fan according to the present invention, a limiting protrusion is provided at the upper end of the side wall of the annular groove, and the limiting protrusion is distributed in a circular equidistant array.

[0009] According to the present invention, a fan has a laser-engraved RGB light ring structure, wherein the RGB LED light strip includes a flexible circuit board, and a plurality of LED beads are electrically connected to the flexible circuit board, wherein the light-emitting surface of the LED beads faces the radial inner side of the annular light guide ring.

[0010] In a laser-engraved RGB halo structure for a fan according to the present invention, the bottom surface of the annular groove is laser-engraved with a light-transmitting pattern area, and the light transmittance of the light-transmitting pattern area is lower than that of the non-engraved area.

[0011] In a fan laser-engraved RGB light ring structure according to the present invention, the annular light guide ring is a transparent acrylic annular ring.

[0012] According to the present invention, a fan has a laser-engraved RGB halo structure, wherein the connector includes an internally threaded tube, the internally threaded tube is integrally formed on the side of the annular light guide ring away from the arc-shaped light guide part, the fan body has a countersunk hole on the side away from the fan outlet, one end of the internally threaded tube is inserted into the countersunk hole from the mounting groove, and the stud of the screw is threaded in the internally threaded tube.

[0013] This utility model has at least the following beneficial effects: The horn-shaped arc-shaped light guide near the air outlet reflects and diffuses the direct light from the LED beads through the arc-shaped inner wall, forming a uniform ring halo; its horn-shaped structure can further expand the visual coverage of the light and enhance the overall light and shadow effect. The LED beads of the RGB LED light strip face the radial inner side of the ring light guide. The light propagates along the ring path inside the light guide, reducing the loss of outward dispersion. After being reflected by the inner wall of the light guide, the light is directly diffused to the inner side of the fan body, making the atmosphere more intense when the fan is running. The bottom surface of the annular groove is laser-engraved to form a light-transmitting pattern area. The difference in light transmittance between the engraved area and the non-engraved area creates a contrast between light and dark. This area is large and can be used to outline preset patterns to meet the personalized light and shadow graphic customization needs of different users. The annular groove can firmly fix the RGB LED light strip, preventing the light strip from shifting due to vibration during fan operation; the standardized annular groove structure enables quick alignment and assembly of the light strip and the annular light guide ring, reducing manual adjustment steps and significantly improving assembly efficiency; the limiting protrusions on the side wall of the annular groove are distributed in a circular equidistant array, which can evenly press the light strip, ensuring balanced force on the light strip and avoiding local stress concentration that could cause the flexible circuit board to break, while also ensuring the fit between the light strip and the annular groove and improving the consistency of light guiding; The trumpet-shaped structure of the arc-shaped light guide corresponds to the fan outlet. Its outwardly expanding shape can smoothly guide the airflow discharged from the outlet, reduce sudden changes in airflow velocity, reduce eddies and turbulence formed at the outlet edge, and weaken the turbulence effect. While ensuring the decorative function of the lighting, it improves the stability and smoothness of the fan's airflow.

[0014] The ring-shaped light guide is made of transparent acrylic material, which has the characteristics of high light transmittance and low haze, and can efficiently conduct light and reduce scattering loss. Its high mechanical strength and impact resistance ensure that the light ring is not easily broken in the environment of fan vibration. Moreover, the refractive index of acrylic is conducive to the total internal reflection of light inside the light guide, and combined with the arc-shaped light guide, it can transform the point light source into a uniform surface light source.

[0015] The annular light guide ring can be securely installed on the fan body through the connector structure of the internal thread tube and the countersunk hole. The countersunk hole design makes the screw head flush with the fan surface, maintaining a flat appearance. Moreover, during later maintenance, the annular light guide ring can be removed simply by removing the screw, which is convenient. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the annular light guide ring of this utility model; Figure 3 This is a schematic diagram of the structure of the RGB light strip of this utility model; Figure 4 This is a schematic diagram of the structure of this utility model installed on a fan; Figure 5 This is a schematic diagram of the countersunk hole structure of this utility model; Figure 6 This is a schematic diagram of the mounting groove of this utility model.

[0017] Explanation of icon numbers: 1. Annular light guide ring; 101. Annular groove; 102. Rounded corner; 103. Internally threaded tube; 104. Light-transmitting pattern layer; 105. Limiting protrusion; 2. RGB LED light strip; 201. Flexible circuit board; 202. LED beads; 3. Fan body; 301. Mounting groove; 302. Countersunk hole. Detailed Implementation

[0018] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0019] Please refer to Figures 1 to 6 As shown, an embodiment of this utility model provides a laser-engraved RGB light ring structure for a fan, including an annular light guide ring 1 and an RGB LED light strip 2. An annular groove 101 is formed on the outer wall of the annular light guide ring 1, and the RGB LED light strip 2 is embedded in the annular groove 101. The annular light guide ring 1 is installed in the mounting groove 301 of the fan body 3 through a connector. An arc-shaped light guide part 102 with a trumpet shape is provided on the side of the annular light guide ring 1 near the air outlet of the fan body 3.

[0020] The annular groove 101 can firmly fix the flexible circuit board 201 of the light strip 2, preventing the light strip from shifting due to vibration during fan operation. At the same time, as a standardized installation structure, the annular groove 101 can realize the quick alignment and assembly of the light strip 2 and the annular light guide ring 1, reducing manual adjustment steps and significantly improving assembly efficiency. The arc-shaped light guide 102 reflects and diffuses the direct light from the LED beads 202 through its arc-shaped inner wall, forming a uniform ring halo; its trumpet-shaped structure can further expand the visual coverage of the light and enhance the overall light and shadow effect.

[0021] The horn-shaped arc-shaped light guide part 102 on the annular light guide ring 1 is correspondingly set at the air outlet of the fan body 3. Its outwardly expanding horn shape can smoothly guide the airflow discharged from the air outlet: by reducing abrupt changes in airflow velocity through the gentle arc surface, it reduces the eddies and turbulence formed at the air outlet edge, thereby effectively weakening the turbulence effect at the air outlet. While ensuring the decorative function of the lighting, it also helps to improve the stability and smoothness of the fan's airflow. In this embodiment, a limiting protrusion 105 is provided on the upper end of the side wall of the annular groove 101, and the limiting protrusion 105 is distributed in a circular equidistant array.

[0022] The limiting protrusion 105 can press the RGB LED light strip 2 tightly into the annular groove 101.

[0023] The equidistant array of limiting protrusions 105 can ensure that the light strip 2 is subjected to balanced force, avoid local stress concentration that could cause the circuit board 201 to break, and at the same time ensure the fit between the light strip 2 and the annular groove 101, thus improving the consistency of light guiding.

[0024] In this embodiment, the RGB LED light strip 2 includes a flexible circuit board 201, on which a plurality of LED beads 202 are electrically connected, and the light-emitting surface of the LED beads 202 faces the radial inner side of the annular light guide ring 1.

[0025] The LED bead 202 emits light inwards, with the light first entering the inner wall of the annular light guide ring 1. The light propagates along an annular path inside the light guide ring 1, reducing outward divergence losses. Furthermore, the light emitted by the RGB LED strip 2 shines through the annular light guide ring 1 onto the inner side of the fan body 3, making the atmosphere more intense when the fan body 3 is running.

[0026] The adaptability of the flexible circuit board 201: The flexible circuit board 201 can be bent to fit the curvature of the annular groove 101, ensuring that the light emission angle of all lamp beads 202 is consistent.

[0027] The light from the secondary light diffuser 202 is reflected by the inner wall of the light guide ring 1 and then further diffused through the horn of the arc-shaped light guide part 102 to form a soft ring light band.

[0028] In this embodiment, the bottom surface of the annular groove 101 is laser-engraved with a light-transmitting pattern area 104, and the light transmittance of the light-transmitting pattern area 104 is lower than that of the non-engraved area.

[0029] Laser engraving uses an ultraviolet nanosecond laser to remove some material from the bottom surface of a groove, creating a microstructure depression. The light transmittance of the engraved area is reduced, creating a contrast between light and shadow with the non-engraved area, thus outlining a preset pattern to meet the customization needs of different users.

[0030] In this embodiment, the annular light guide ring 1 is a transparent acrylic annular ring.

[0031] Transparent acrylic boasts 92% light transmittance and low haze, efficiently conducting light and reducing scattering losses. Furthermore, its high mechanical strength and impact resistance ensure the halo is not easily broken under fan vibration conditions.

[0032] The refractive index of acrylic material is approximately 1.49, causing total internal reflection of light within the light guide ring 1, which then propagates along a ring-shaped path. Combined with the trumpet-shaped structure of the arc-shaped light guide part 102, a point light source can be transformed into a uniform surface light source.

[0033] In this embodiment, the connector includes an internally threaded tube 103, which is integrally formed on the side of the annular light guide ring 1 away from the arc-shaped light guide part 102. The fan body 3 has a countersunk hole 302 on the side away from the fan outlet. One end of the internally threaded tube 103 is inserted into the countersunk hole 302 from the mounting groove 301, and the stud of the screw is threaded into the internally threaded tube 103.

[0034] During installation, after the internally threaded tube 103 is inserted into the countersunk hole 302, the screw secures the annular light guide ring 1 to the fan body 3 via the threaded connection. The countersunk hole 302 is designed so that the screw head is flush with the fan surface, maintaining a flat appearance.

[0035] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the present invention's conception through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A laser-engraved RGB halo structure for a fan, characterized in that, It includes an annular light guide ring (1) and an RGB LED light strip (2). The outer wall of the annular light guide ring (1) is provided with an annular groove (101), and the RGB LED light strip (2) is embedded in the annular groove (101). The annular light guide ring (1) is installed in the mounting slot (301) of the fan body (3) through a connector; The annular light guide ring (1) has an arc-shaped light guide part (102) arranged in a trumpet shape on the side near the air outlet of the fan body (3).

2. The laser-engraved RGB halo structure of a fan according to claim 1, characterized in that: The upper end of the side wall of the annular groove (101) is provided with a limiting protrusion (105), which is distributed in a circular equidistant array.

3. The laser-engraved RGB halo structure of a fan according to claim 2, characterized in that: The RGB LED light strip (2) includes a flexible circuit board (201), on which a number of LED beads (202) are electrically connected, and the light-emitting surface of the LED beads (202) faces the radial inner side of the annular light guide ring (1).

4. The laser-engraved RGB halo structure of a fan according to claim 3, characterized in that: The bottom surface of the annular groove (101) is laser-engraved with a light-transmitting pattern area (104), and the light transmittance of the light-transmitting pattern area (104) is lower than that of the non-engraved area.

5. The laser-engraved RGB halo structure of a fan according to claim 1, characterized in that: The annular light guide ring (1) is a transparent acrylic annular ring.

6. The laser-engraved RGB halo structure of a fan according to any one of claims 1-5, characterized in that: The connector includes an internally threaded tube (103), which is integrally formed on the side of the annular light guide ring (1) away from the arc-shaped light guide part (102). The fan body (3) has a countersunk hole (302) on the side away from the fan outlet. One end of the internally threaded tube (103) is inserted into the countersunk hole (302) from the mounting groove (301), and the stud of the screw is threaded into the internally threaded tube (103).

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