Light guide piece and wireless earphone box

Abstract

The utility model relates to the technical field of light guide parts, in particular to a light guide part which comprises a first light guide part, a refraction part and a second light guide part which are sequentially connected. The first light guide part is strip-shaped and is used for being connected with an external shell; the refraction part is respectively connected with the first light guide part and the second light guide part in a bending manner; at least two installation positions used for installing lamp beads are arranged on the side, away from the refraction part, of the second light guide part, the at least two installation positions are arranged in the length direction of the second light guide part at intervals, and the included angle between the light inlet direction of the installation positions and the light outlet direction of the first light guide part ranges from 30 degrees to 60 degrees. Through the arrangement of the light guide pieces, light channeling between the adjacent light guide columns is reduced, the output light is dispersed by changing the light propagation path, the potential threat to the visual health of a user is reduced, and therefore the display effect and the user experience are improved. The utility model also relates to a wireless earphone box.

Description

Technical Field

[0001] This utility model relates to the field of light guide technology, and in particular to a light guide and a wireless earphone box. Background Technology

[0002] In the field of headphone cases, Bluetooth headphones are becoming increasingly common. In order to store and charge Bluetooth headphones, various Bluetooth headphone cases have been designed. When the Bluetooth headphones are used or the Bluetooth headphones are out of power, they can be stored in the Bluetooth headphone case and charged at the same time. The Bluetooth headphone case is equipped with a charging indicator mechanism to indicate the charging status and / or charging result of the Bluetooth headphones.

[0003] Currently, Chinese patent CN212321889U discloses a light guide component for a Bluetooth headset charging case, including a light shield, light guide pillars, and connectors. The light shield has several light shielding slots, one end of each light guide pillar is located within a light shielding slot, and the other end extends to a lamp hole in the lower housing. Each light guide pillar is connected to the connector. By providing multiple independent light shielding slots in the light shield to accommodate various LEDs on the control board, the light emitted by the LEDs enters the light shielding slots, is focused and guided by the light guide pillars, and finally displays a light signal at the lamp hole in the lower housing, resulting in a good display effect.

[0004] However, because the aforementioned light guide components use multiple LEDs connected to a single connector, and a single connector connects multiple light guide columns, light leakage can easily occur between adjacent light guide columns, resulting in poor display quality. Furthermore, while the light guide columns themselves have a focusing and guiding function, designed to effectively and quickly guide the light emitted by the LEDs to enhance luminous efficiency, in actual use, this strong focusing and guiding effect may cause the output light to be too concentrated, creating a glaring effect. This not only poses a potential threat to the user's visual health but also limits the application of this type of light guide component in more sensitive scenarios.

[0005] Therefore, how to solve the problems of light leakage and excessively glaring light in existing light guide components has become a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] This invention provides a light guide component that solves the problems of light leakage and excessively glaring light in existing light guide components.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A light guide includes a first light guide portion, a refractive portion, and a second light guide portion connected sequentially. The first light guide portion is strip-shaped and used to connect to an outer housing. The refractive portion is bent and connected to the first light guide portion and the second light guide portion respectively. The second light guide portion has at least two mounting positions for mounting LED beads on the side away from the refractive portion. The at least two mounting positions are spaced apart along the length direction of the second light guide portion, and the angle between the light input direction of the mounting position and the light output direction of the first light guide portion is 30° to 60°.

[0009] Furthermore, the second light guide portion is provided with multiple mounting positions, which are evenly spaced.

[0010] Furthermore, the light-gathering directions of the multiple mounting positions are arranged in the same direction.

[0011] Furthermore, the second light guide portion has a groove extending through its thickness direction on the side away from the refractive portion to form the mounting position, the mounting position including a light-incoming surface that matches the shape of the lamp bead.

[0012] Further, the angle between the light-inlet direction of the mounting position and the light-outlet direction of the first light guide is greater than or equal to 30° and less than 40°, greater than or equal to 40° and less than 50°, or greater than or equal to 50° and less than or equal to 60°; or, the at least two mounting positions are spaced apart along the length direction of the second light guide, and the angle between the light-inlet direction of the mounting position and the light-outlet direction of the first light guide is specifically 30°, 35°, 40°, 45°, 50°, 55° or 60°.

[0013] Furthermore, the first light guide, the refraction part, and the second light guide are connected in a Z-shape.

[0014] Furthermore, the length of the first light guide portion is less than that of the refractive portion.

[0015] Furthermore, the refractive part is L-shaped, and the outer corner of the refractive part is chamfered to form a reflective surface.

[0016] Furthermore, the light guide is a transparent or semi-transparent component.

[0017] To address the aforementioned technical problems, this application also provides a wireless earphone case.

[0018] A wireless earphone case includes a housing and the aforementioned light guide.

[0019] The beneficial effects of this utility model are as follows: This application example effectively solves the problems of light leakage and excessively glaring light in existing Bluetooth headset charging case light guide components by designing a novel light guide component including a first light guide part, a refraction part, and a second light guide part; the angle between the light-incoming direction of the mounting position and the light-outcoming direction of the first light guide part is 30° to 60°. This structure not only reduces light leakage between adjacent light guide columns, but also disperses the output light by changing the light propagation path, reducing the potential threat to the user's visual health, thereby improving the display effect and user experience. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the wireless earphone box in an embodiment of the present utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the light guide component in an embodiment of this utility model;

[0023] Figure 3 This is a schematic diagram of the light guide component from another perspective in an embodiment of this utility model;

[0024] Figure 4 for Figure 3 Enlarged diagram of point A;

[0025] Figure 5 for Figure 3 Cross-sectional view at point BB.

[0026] Explanation of reference numerals in the attached drawings: 100, light guide; 10, first light guide section; 20, refractive section; 21, reflective surface; 30, second light guide section; 31, mounting position; 32, light-incoming surface; 200, wireless earphone box; 201, outer housing; 202, LED bead; 203, circuit board; Detailed Implementation

[0027] 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.

[0028] Example

[0029] like Figures 1 to 3As shown, the present invention provides a wireless earphone box 200, which includes an outer shell 201, a light guide 100, an LED bead 202, and a circuit board 203. The circuit board 203 is disposed inside the outer shell 201, and the LED bead 202 is soldered onto the circuit board 203. The outer shell 201 is provided with a through hole for mounting the light guide 100, and the light emitted by the LED bead 202 can be conducted to the outside of the outer shell 201 through the light guide 100.

[0030] like Figures 1 to 3 As shown, the light guide 100 includes a first light guide portion 10, a refractive portion 20, and a second light guide portion 30 connected in sequence; the first light guide portion 10 is strip-shaped and used to connect to the outer housing 201; the refractive portion 20 is bent and connected to the first light guide portion 10 and the second light guide portion 30 respectively; the second light guide portion 30 has at least two mounting positions 31 for mounting lamp beads 202 on the side away from the refractive portion 20, the at least two mounting positions 31 are spaced apart along the length direction of the second light guide portion 30, and the light input direction of the mounting positions 31 and the light output direction of the first light guide portion 10 are (… Figure 3 The angle between the X-direction (where X is the light-emitting direction) and the light-emitting direction is 30° to 60°. This embodiment effectively solves the problems of light leakage and excessively glaring light in existing Bluetooth headset charging case light guide assemblies by designing a novel light guide component 100 comprising a first light guide 10, a refraction part 20, and a second light guide 30. Specifically, the second light guide 30 is provided with at least two mounting positions 31 spaced apart along its length for mounting LED beads 202, and the angle between the light-inlet direction of these mounting positions 31 and the light-outlet direction of the first light guide 10 is 30° to 60°. This structure not only reduces light leakage between adjacent light guide columns but also disperses the output light by changing the light propagation path, reducing the potential threat to the user's visual health, thereby improving the display effect and user experience. Therefore, this improvement not only enhances product safety but also expands its application possibilities in sensitive scenarios, possessing significant market potential.

[0031] like Figure 3 and Figure 4As shown, in this embodiment, the second light guide 30 is provided with a plurality of mounting positions 31, which are evenly spaced. By providing a plurality of evenly spaced mounting positions 31 in the second light guide 30, this design ensures that the light emitted by each LED bead 202 can be more evenly distributed. The evenly spaced mounting positions 31 help avoid the problem of excessively strong or weak light in some areas due to the LED bead 202 being too concentrated, thereby achieving a more uniform and softer lighting display effect. In addition, this layout can effectively reduce mutual interference between adjacent light guide paths, i.e., light crosstalk, and improve the consistency and stability of the overall light effect. Therefore, users can obtain a more comfortable and clear visual indication experience, which not only improves the convenience of use, but also enhances the reliability and aesthetics of the product, further meeting diverse market demands.

[0032] Specifically, the light-incoming directions of the multiple mounting positions 31 are arranged in the same direction. By setting the light-incoming directions of the multiple mounting positions 31 in the same direction, it is ensured that the light emitted by all the LED beads 202 enters the second light guide section 30 along the same direction. This design enables a more consistent and focused light propagation path, avoiding problems such as unclear display or light dispersion caused by cross-interference of light from different directions. The unidirectional light-incoming direction helps to enhance the light intensity in specific areas and improve the visibility and recognizability of the indicator light, making the indication of charging status or result clearer and more intuitive. In addition, this design can simplify the design complexity of the optical system, reduce the use of unnecessary optical components, thereby reducing manufacturing costs and improving production efficiency. Ultimately, users can obtain clearer and more accurate visual feedback, enhancing the convenience and satisfaction of use.

[0033] Combination Figures 3 to 5 As shown, the second light guide 30 has a groove extending through its thickness on the side away from the refractive part 20 to form the mounting position 31. The mounting position 31 includes a light-incoming surface 32 that matches the shape of the LED bead 202. Specifically, by providing a groove extending through its thickness on the side of the second light guide 30 away from the refractive part 20 to form a mounting position 31 with a light-incoming surface 32 that matches the shape of the LED bead 202, this embodiment significantly improves light coupling efficiency and guiding accuracy, reduces energy loss, and optimizes the display effect. This design ensures that the light emitted by the LED bead 202 can enter and pass through the light guide efficiently and accurately, avoiding unnecessary scattering and reflection, thereby providing a more uniform and clear indicator light. In addition, the customized light-incoming surface 32 not only simplifies the assembly process and improves the accuracy and efficiency of production, but also enhances the structural stability of the entire light guide assembly, making the product more durable and reliable. Ultimately, users can obtain a better visual experience, while the aesthetics and compactness of the product are also improved, meeting the requirements of modern electronic devices for high performance and exquisite appearance.

[0034] like Figures 3 to 5 As shown, the angle between the light-incident direction of the mounting position 31 and the light-outcident direction of the first light guide 10 is greater than or equal to 30° and less than 40°, greater than or equal to 40° and less than 50°, or greater than or equal to 50° and less than or equal to 60°; or, the at least two mounting positions 31 are spaced apart along the length direction of the second light guide 30, and the angle between the light-incident direction of the mounting position 31 and the light-outcident direction of the first light guide 10 is specifically 30°, 35°, 40°, 45°, 50°, 55° or 60°. In this embodiment, as shown in the figure, the angle between the light-inlet direction of the mounting position 31 and the light-outlet direction of the first light guide 10 is 45°. By setting a light-inlet surface 32 that matches the shape of the lamp bead 202 on the side of the second light guide 30 away from the refraction part 20, and making the angle between the light-inlet direction of the mounting position 31 and the light-outlet direction of the first light guide 10 45°, this embodiment optimizes the light propagation path, allowing the light to be transmitted from the lamp bead 202 to the first light guide 10 at an ideal angle, and then output to the external environment. This specific angle design avoids the glare caused by overly direct light, effectively reduces light loss, ensures the uniformity and softness of the indicator light, and improves the user's visual experience. In addition, the 45° angle helps reduce interference between adjacent light guide paths, further enhancing the consistency and clarity of the display effect, while simplifying the structural design, improving assembly efficiency and overall structural stability, and ultimately achieving a dual improvement in performance and user experience.

[0035] In this embodiment, the first light guide 10, the refractive part 20, and the second light guide 30 are connected in a Z-shape. This unique Z-shape design not only helps to change the direction of light, allowing it to be transmitted from the LED bead 202 to the first light guide 10 and finally output in a softer and more uniform manner, but also effectively avoids the glare caused by excessive light concentration. Furthermore, the Z-shape structure reduces interference between adjacent light guide paths, further improving the consistency and clarity of the display effect. This design also enhances the structural stability of the entire light guide assembly, simplifies the assembly process, improves production efficiency, and ensures the durability and reliability of the product. Overall, this innovative design significantly improves the user's visual experience while also meeting the requirements of modern electronic devices for high performance, compact design, and aesthetics.

[0036] Specifically, the length of the first light guide portion 10 is less than that of the refractive portion 20. Since the lamp bead 202 is mounted on the second light guide portion 30, if the lengths of the first light guide portion 10 and the second light guide portion 30 are the same, the luminous intensity at both ends of the first light guide portion 10 may be lower than that at the two middle parts, resulting in uneven luminous intensity at both ends. At the same time, the different lengths of the first light guide portion 10 and the refractive portion 20 can increase the number of refractions of light within the light guide component 100, making the light transmission of the light guide component 100 more uniform.

[0037] like Figures 3 to 5 As shown, the refractive part 20 is L-shaped, and its outer corner is beveled to form a reflective surface 21. By connecting the first light guide part 10, the refractive part 20, and the second light guide part 30 in a Z-shape, and by specifically designing the length of the first light guide part 10 to be less than that of the refractive part 20, and by using an L-shape for the refractive part 20 and beveling its outer corner to form a reflective surface 21, the angle between the light-incident direction of the mounting position 31 and the light-outcident direction of the first light guide part 10 is 45°. This invention achieves optimized light management and enhanced display effects. The L-shaped refractive part 20 and the reflective surface 21 formed by its beveled outer corner effectively change the light propagation path, ensuring that the light is accurately guided to the second light guide part 30 when passing through the refractive part 20, reducing unnecessary light loss and avoiding glare caused by excessive light concentration. This design not only improves light transmission efficiency and uniformity but also enhances display consistency and clarity. Furthermore, this structural optimization simplifies the overall design, improves assembly convenience and structural stability, and makes the product more durable and reliable. Overall, these innovations significantly enhance the visual experience while meeting the high standards of modern electronic devices for compact design, high performance, and aesthetics.

[0038] In this embodiment, the light guide 100 is a transparent or semi-transparent component, such as polymethyl methacrylate (PMMA) or polycarbonate (PC). These materials not only have excellent light transmittance, ensuring efficient penetration and uniform distribution of light emitted by the LED beads 202, but also possess good mechanical strength and weather resistance, making them suitable for long-term use. PMMA offers up to 92% light transmittance, suitable for applications requiring high-definition indication; while PC, with its superior impact strength and heat resistance, performs well in applications requiring higher durability. Choosing one of these two materials satisfies the aesthetic, performance, and reliability requirements of the Bluetooth headset box light guide assembly. The sides of the light guide 100 can be frosted or coated with a light-shielding coating to reduce side light emission from the light guide 100 and prevent interference with the display.

[0039] All technical features in this embodiment can be freely combined according to actual needs.

[0040] 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 technical solution are within the protection scope of this utility model.

Claims

1. A light guide component, characterized in that: The device includes a first light guide, a refraction section, and a second light guide connected in sequence. The first light guide is strip-shaped and used to connect to the outer housing. The refraction section is bent and connected to the first light guide and the second light guide respectively. The second light guide has at least two mounting positions for mounting LED beads on the side away from the refraction section. The at least two mounting positions are spaced apart along the length of the second light guide, and the angle between the light-inlet direction of the mounting position and the light-outlet direction of the first light guide is 30° to 60°.

2. The light guide component according to claim 1, characterized in that: The second light guide portion is provided with multiple mounting positions, which are evenly spaced.

3. A light guide element according to claim 2, characterized in that: The light-gathering directions of the multiple mounting positions are set in the same direction.

4. A light guide element according to claim 1, characterized in that: The second light guide portion has a groove extending through its thickness direction on the side away from the refractive portion to form the mounting position, the mounting position including a light-incoming surface that matches the shape of the lamp bead.

5. A light guide element according to claim 1, characterized in that: The angle between the light-inlet direction of the mounting position and the light-outlet direction of the first light guide is greater than or equal to 30° and less than 40°, greater than or equal to 40° and less than 50°, or greater than or equal to 50° and less than or equal to 60°; or, the at least two mounting positions are spaced apart along the length of the second light guide, and the angle between the light-inlet direction of the mounting position and the light-outlet direction of the first light guide is specifically 30°, 35°, 40°, 45°, 50°, 55° or 60°.

6. A light guide element according to claim 1, characterized in that: The first light guide, the refraction part, and the second light guide are connected in a Z-shape.

7. A light guide element according to claim 6, characterized in that: The length of the first light guide is less than that of the refractive part.

8. A light guide element according to claim 6, characterized in that: The refractive part is L-shaped, and the outer corner of the refractive part is chamfered to form a reflective surface.

9. A light guide element according to claim 1, characterized in that: The light guide is a transparent or semi-transparent component.

10. A wireless earphone case, characterized in that: It includes the housing and the light guide as described in any one of claims 1-9.

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