A heat-dissipating back clasp light guide

CN224932589UActive Publication Date: 2026-11-03DONGGUAN KANGDE PHOTOELECTRIC TECH CO LTD
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Patent Information

Application Number
CN202620000896.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2026-01-04
Publication Date
2026-11-03
Estimated Expiration
2036-01-04

AI Technical Summary

Technical Problem

The existing light guide strips of the light-emitting and heat-dissipating back clips have poor light output and low brightness, requiring more power to improve brightness, resulting in high energy consumption.

Method used

The structure employs a combination of a ring-shaped light guide, a light-inlet light guide, a corner light guide, and a light guide rib. After light enters the ring-shaped light guide through the light-inlet light guide, it is refracted by the corner light guide to the light guide rib, achieving multiple transmission of light. Combined with a reflective film and a side light guide assembly, it improves light utilization and brightness.

Benefits of technology

The light emission effect and brightness of the heat dissipation back clip have been improved, power consumption has been reduced, and more efficient light transmission and a softer light emission area have been achieved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the light emitting and light guiding technical field of heat dissipation back clamps, and particularly relates to a heat dissipation back clamp light guide piece, which adopts an annular light guide part, at least two light guide and light in parts located on the inner ring side of the annular light guide part, a corner light guide part connecting the top surface of the light guide and light in part and the inner side wall of the annular light guide part, and at least two light guide rib parts connected to the outer side wall of the annular light guide part, the bottom surface of the light guide and light in part is a light in surface, and the corner light guide part is in light communication with the light guide rib part through the annular light guide part. In actual use, the RGB lamp is still laid flat and installed in the upper cover base of the heat dissipation back clamp, the light emitting surface of the RGB lamp corresponds to the light in surface of the light guide and light in part one by one and is in light communication, the light passes through the light guide and light in part, refracts the light through the corner light guide part to the light guide rib part by means of the corner light guide part, the annular light guide part and the light guide rib part emit light at the same time, the light emitting effect is better, the light brightness is higher, the light emitting area is larger, and it is also more conducive to energy saving.
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Description

Technical Field

[0001] This utility model relates to the field of light-emitting back clip technology, specifically to a light-guiding component for a heat dissipation back clip. Background Technology

[0002] The luminous heat dissipation back clip is a mobile phone accessory that combines heat dissipation and cool lighting effects. It uses semiconductor cooling technology to efficiently cool down the phone, while also being equipped with RGB lights to display colorful lighting effects, enhancing the user experience and visual appeal.

[0003] Existing back clips with RGB lighting emit light and guide it with a planar light guide strip, which makes the light guide strip display a strip of light. However, due to limited space, the RGB lights are usually laid flat in the base of the back clip's top cover. After one end of the planar light guide strip is attached to the RGB light, the light output effect of the planar light guide strip is poor and the brightness is low due to the influence of the straight propagation of light. More power is needed to improve the brightness of the RGB lights and ensure the brightness of the planar light guide strip, resulting in high energy consumption. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this utility model is to provide a heat dissipation back clip light guide.

[0005] The purpose of this utility model is achieved through the following technical solution: a heat dissipation back clip light guide, including an annular light guide part, at least two light guide entrance parts located on the inner ring side of the annular light guide part, a corner light guide part connecting the top surface of the light guide entrance part and the inner side wall of the annular light guide part, and at least two light guide ribs connected to the outer side wall of the annular light guide part. The bottom surface of the light guide entrance part is the light entrance surface, and the corner light guide part is light-conducting with the light guide ribs through the annular light guide part.

[0006] Preferably, the corner light guide has a rounded corner transition, the upper surface of the corner light guide has an outer arc chamfer, and the lower surface of the corner light guide has an inner arc chamfer.

[0007] Preferably, the light-guiding portion is cylindrical, and the light-guiding rib is elongated.

[0008] Preferably, the apex of the light guide rib that is away from the annular light guide has a rounded corner transition.

[0009] Preferably, the end of the light guide rib that is away from the annular light guide extends to a limiting block for fixing to the heat dissipation back clip.

[0010] Preferably, a reflective film is attached to the bottom surface of the light guide rib.

[0011] Preferably, the inner sidewall of the annular light guide portion has at least two sets of side light guide groups, each side light guide group comprising two symmetrically distributed light guide protrusions located close to both sides of the corner light guide portion.

[0012] Preferably, the number of light-guiding light-incident parts, the number of corner light-guiding parts, and the number of light-guiding ribs are all four.

[0013] The beneficial effects of this utility model are as follows: The heat dissipation back clip light guide component of this utility model adopts an annular light guide section, at least two light guide entry sections located on the inner ring side of the annular light guide section, a corner light guide section connecting the top surface of the light guide entry section and the inner side wall of the annular light guide section, and at least two light guide ribs connected to the outer side wall of the annular light guide section. The bottom surface of the light guide entry section is the light entry surface, and the corner light guide section conducts light through the annular light guide section and the light guide ribs. In actual use, RGB lights are still installed flat in the upper cover base of the heat dissipation back clip. The light emission surface of the RGB lights corresponds one-to-one with the light entry surface of the light guide entry section and conducts light. The light passes through the light guide entry section, and the light is refracted by the corner light guide section through the annular light guide section to the light guide ribs, so that the annular light guide section and the light guide ribs emit light simultaneously, with better light emission effect, higher brightness, more light-emitting area, and is also more conducive to energy saving. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; The attached figures are labeled as follows: 1. Annular light guide section; 2. Light guide entrance section; 3. Corner light guide section; 4. Light guide rib section; 5. Limiting block; 6. Reflective film; 7. Light guide convex hull. Detailed Implementation

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0016] like Figure 1-2 As shown, a heat dissipation back clip light guide includes an annular light guide portion 1, at least two light guide and light-incident portions 2 located on the inner ring side of the annular light guide portion 1, a corner light guide portion 3 connecting the top surface of the light guide and light-incident portion 2 and the inner side wall of the annular light guide portion 1, and at least two light guide rib portions 4 connected to the outer side wall of the annular light guide portion 1. The bottom surface of the light guide and light-incident portion 2 is the light-incident surface, and the corner light guide portion 3 is optically connected to the light guide rib portion 4 through the annular light guide portion 1.

[0017] In actual use, RGB lights are still installed flat in the base of the heat dissipation back clip. The light-emitting surface of the RGB lights corresponds one-to-one with the light-incident surface of the light guide 2 and the light is conducted. The light passes through the light guide 2, and is refracted by the corner light guide 3 through the ring light guide 1 to the light guide rib 4. This allows the ring light guide 1 and the light guide rib 4 to emit light at the same time, resulting in better light emission, higher brightness, more light-emitting areas, and greater energy saving.

[0018] Furthermore, the corner light guide 3 has a rounded corner transition, with an outer arc chamfer on the upper surface and an inner arc chamfer on the lower surface. The combination of the outer and inner arc chamfers is more conducive to refracting more light into the annular light guide 1 and into the light guide rib 4, thereby improving light utilization.

[0019] Furthermore, the light-guiding part 2 is cylindrical, which is more conducive to the reflection and conduction of light within the light-guiding part; the light-guiding rib part 4 is elongated.

[0020] Furthermore, the top corner of the light guide rib 4 away from the annular light guide 1 is rounded, which helps to prevent light from converging at the top corner of the light guide rib 4 away from the annular light guide 1 and causing it to overexpose.

[0021] Furthermore, the end of the light guide rib 4 away from the annular light guide 1 extends to a limiting block 5 for fixing and limiting with the heat dissipation back clip. In actual use, the upper cover base of the heat dissipation back clip has at least two limiting grooves, and the limiting grooves and limiting blocks 5 correspond one-to-one for limiting and fitting.

[0022] Furthermore, a reflective film 6 is attached to the bottom surface of the light guide rib 4, which is more conducive to improving the light output brightness of the light guide rib 4.

[0023] Furthermore, the inner wall of the annular light guide 1 has at least two sets of side light guides protruding. Each side light guide includes two symmetrically distributed light guide protrusions 7 located near the two sides of the corner light guide 3, which helps to improve the light output brightness of the annular light guide 1. In actual use, the partial light-transmitting cover of the heat dissipation back clip is placed in the middle of the light guide component of the heat dissipation back clip, so that the top surfaces of the light guide entry part 2, the corner light guide 3, and the annular light guide 1 are covered by the partial light-transmitting cover, avoiding direct visual observation of the RGB light shining brightly when entering the light guide entry part 2. At this time, the local area of ​​the partial light-transmitting cover, the outer surface area of ​​the annular light guide 1, and the light guide rib 4 are all visible to emit light, and the light is softer and the light-emitting area is larger.

[0024] Furthermore, the number of light-guiding light-inlet sections 2, the number of corner light-guiding sections 3, and the number of light-guiding ribs 4 are all four. Correspondingly, the number of RGB lights is four, and the number of side light-guiding groups is four.

[0025] In this embodiment, the annular light guide 1, the light guide entry part 2, the corner light guide 3, the light guide rib part 4, the limiting block 5, and the light guide protrusion 7 in the heat dissipation back clip light guide component are integrally formed.

[0026] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. A heat dissipation back clip light guide, characterized in that: It includes an annular light guide section, at least two light guide entry sections located on the inner ring side of the annular light guide section, a corner light guide section connecting the top surface of the light guide entry section and the inner sidewall of the annular light guide section, and at least two light guide ribs connected to the outer sidewall of the annular light guide section. The bottom surface of the light guide entry section is the light entry surface, and the corner light guide section is in optical communication with the light guide ribs through the annular light guide section.

2. The heat dissipation back clip light guide according to claim 1, characterized in that: The corner light guide has a rounded corner transition, the upper surface of the corner light guide has an outer arc chamfer, and the lower surface of the corner light guide has an inner arc chamfer.

3. The heat dissipation back clip light guide according to claim 1, characterized in that: The light-guiding part is cylindrical, and the light-guiding rib is elongated.

4. The heat dissipation back clip light guide according to claim 1, characterized in that: The apex of the light guide rib, away from the annular light guide, has a rounded corner transition.

5. A heat dissipation back clip light guide according to claim 1, characterized in that: The end of the light guide rib that is away from the annular light guide extends to a limiting block for fixing to the heat dissipation back clip.

6. A heat dissipation back clip light guide according to claim 1, characterized in that: A reflective film is attached to the bottom surface of the light guide rib.

7. A heat dissipation back clip light guide according to claim 1, characterized in that: The inner wall of the annular light guide portion has at least two sets of side light guide groups, each side light guide group including two symmetrically distributed light guide protrusions close to both sides of the corner light guide portion.

8. A heat dissipation back clip light guide according to claim 1, characterized in that: The number of light-guiding light-inlet sections, the number of corner light-guiding sections, and the number of light-guiding ribs are all four.