WO2023134182A1 - Light-emitting type head-mounted device - Google Patents

Abstract

The present utility model relates to the technical field of head-mounted devices, in particular to a light-emitting type head-mounted device, comprising a head band, a fixed block, a housing, and a light source. A light guide strip is provided along an extension direction of the head band, and has a light source end. The fixed block is provided at the end portion of the head band, the light guide strip is fixed onto the fixed block, and the light source end is exposed out of the fixed block. An insertion portion is provided on the housing, and the fixed block is fixed in the insertion portion. The light source is fixed in the housing and corresponds to the light source end. According to the light-emitting type head-mounted device, the light source end of the light guide strip and the light source are positioned, so that position alignment between the light source end and the light source is achieved, the positions of the light source and the light source end can be always kept fixed, light emitted by the light source can be better incident to the light guide strip from the light source end, the light guide strip is better in light-emitting effect, stable in light-emitting performance and free of light leakage. The light guide efficiency is improved, and light emitting is more uniform.

Description

A light-emitting head-mounted device technical field

The utility model belongs to the technical field of head-mounted devices, in particular to a light-emitting head-mounted device.

Background technique

Most of the head-mounted devices, such as earphones, do not have a light-emitting function. This kind of non-luminous earphones obviously has the disadvantage of poor visual effect and cannot be seen at night. In order to solve the above defects, technicians have developed a kind of earphone with light-emitting function. This earphone usually emits light through a light source (LED lamp bead), and then realizes the light-emitting effect through a light guide strip (optical fiber). Due to the lack of positioning structure between the light source and the light guide strip, the light source cannot be aligned with the end of the light guide strip, or the position between the two cannot be effectively fixed, resulting in unsatisfactory lighting effects, such as poor light gathering effect, insufficient brightness, The light transmission efficiency is low, the power consumption of the light source is large, the light is discontinuous, uneven, and even the light guide strip has no luminous effect.

Utility model content

The purpose of this utility model is to provide a light-emitting head-mounted device, aiming to solve the lack of a positioning structure between the light source and the light guide bar of the head-mounted device in the prior art, and the light source cannot be aligned with the end of the light guide bar. Or a technical problem where the position between the two cannot be effectively fixed.

In order to achieve the above purpose, a light-emitting head-mounted device provided by an embodiment of the present invention includes:

A headband, a light guide strip is provided along the extending direction of the headband, and the light guide strip has a light source end;

The illuminated headset also includes:

A fixed block, the fixed block is arranged at the end of the headband, and the light guide strip is fixed on the fixed block;

A casing, the casing is provided with an insertion part, and the fixing block is fixed in the insertion part; and

A light source, the light source is fixed in the casing and corresponds to the light source end.

Optionally, a concave-convex matching structure is provided between the fixing block and the housing, and the concave-convex matching structure includes a groove and a bump, the groove is arranged on the fixing block, and the bump It is arranged on the shell, and the protrusion is inserted into the groove.

Optionally, the housing includes a housing main body and a housing side cover, the housing side cover and the housing main body cover each other, the insertion part is formed at the end of the housing main body, and the protrusion is provided On the side cover of the casing, a through hole is provided on the hole wall of the insertion part, and the protrusion passes through the through hole and is inserted into the groove.

Optionally, a built-in hole is provided in the fixed block, the light source end is accommodated in the built-in hole, and the light source extends into the built-in hole to correspond to the light source end; or the The light source end is flush with the lower end surface of the fixed block; or the light source end protrudes from the fixed block, the light source is provided with a sleeve, and the two ends of the sleeve are respectively sleeved on the light source and the on the light source.

Optionally, the luminescent head-mounted device further includes a PCB board, the PCB board is fixed in the housing, the light source is arranged on the PCB board, and the inner wall of the housing is provided with a first limit position. part, the light source is fixed between the first limiting part and the PCB board.

Optionally, the first limiting member is a plate-shaped member, the plate-shaped member has a step portion, a light shielding sleeve is placed on the side of the light source, and the light shielding sleeve abuts on the step portion ; The rear end of the light source is limited on the PCB, and the front end of the light source is limited on the step portion through the shading sleeve.

Optionally, a right-angle notch is provided on the PCB, and the left and right sides of the light-shielding sleeve are respectively limited between the first limiting member and the right-angle notch.

Optionally, the insertion part has an insertion port and a pair of interfaces, the fixing block is inserted into the insertion part from the insertion port, the docking port corresponds to the light source, and the inner periphery of the insertion port is provided with There are limiting ribs, and the end of the fixing block is limited to the limiting ribs.

Optionally, the two fixing blocks are respectively arranged at both ends of the headband in an enlarged shape, the two fixing blocks are respectively fixed in the insertion parts of the two shells, and the two light sources correspond to to the two fixed blocks; the light guide strip is a fluorescent light guide strip or a non-fluorescent light guide strip with built-in optical fibers, and the two ends of the fluorescent light guide strip or the two ends of the optical fiber correspond to to the head of both said light sources.

Optionally, an optical fiber is arranged in the fluorescent light guide strip.

The above-mentioned one or more technical solutions in the light-emitting head-mounted device provided by the embodiment of the present invention have at least one of the following technical effects:

1. The light guide strip of the light-emitting head-mounted device is fixed on the fixing block and the light source end is exposed to the fixing block, and the fixing block is fixed in the insertion part of the housing, so The light source is fixed in the housing and corresponds to the light source end. By positioning the light source end of the light guide strip and the light source, the alignment between the two is realized, and the light source can always maintain The position of the light source end is fixed, the light emitted by the light source can better enter the light guide strip from the light source end, the light guide strip has a better luminous effect, and the luminous performance is stable, and the light guide strip is bright It is more uniform, the illumination brightness is enhanced, and the light transmission efficiency is improved. Compared with the light-emitting earphones in the prior art, the utility model realizes lower power consumption of the light source under the condition of equal-brightness light emission.

2. The shading sleeve improves the light-gathering effect and avoids light scattering and light leakage.

3. The connection between the fixed block and the insertion part simplifies the production and assembly process, improves the production efficiency, improves the yield rate and reduces the cost.

4. The connection structure design between the main body of the housing, the side cover of the housing and the fixing block prevents the fixing block from being pulled out, enhances product reliability, simplifies the assembly process, improves production efficiency, and reduces costs.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the accompanying drawings that are required in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only the practical For some novel embodiments, those skilled in the art can also obtain other drawings based on these drawings without any creative work.

Fig. 1 is a front view of a light-emitting head-mounted device provided by an embodiment of the present invention.

Fig. 2 is a sectional view along the direction A-A shown in Fig. 1 .

FIG. 3 is a partially enlarged view of area B shown in FIG. 2 .

Fig. 4 is a left view of the light-emitting head-mounted device provided by the embodiment of the present invention.

Fig. 5 is a sectional view along the direction C-C shown in Fig. 4 .

FIG. 6 is a partially enlarged view of area D shown in FIG. 5 .

Fig. 7 is an exploded view of the light-emitting head-mounted device provided by the embodiment of the present invention.

FIG. 8 is a partially enlarged view of area E shown in FIG. 7 .

Fig. 9 is an exploded view from another angle of the light-emitting head-mounted device provided by the embodiment of the present invention.

Fig. 10 is an assembly structure diagram of the light source end and the fixing block provided by the embodiment of the present invention.

Fig. 11 is another assembly structure diagram of the light source end and the fixing block provided by the embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the embodiments of the present invention, but should not be construed as limitations of the present invention.

In the description of the embodiment of the utility model, it should be understood that if the embodiment of the utility model involves directional indications, such as directions or positions indicated by up, down, left, right, front, back, inside, outside, etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be configured in a specific orientation, and operation, and therefore cannot be construed as a limitation of the utility model.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the embodiments of the present utility model, unless otherwise clearly specified and limited, if there are terms such as "installation", "connection", "connection" and "fixation", they should be understood in a broad sense, for example, it can be a fixed connection, or It can be a detachable connection or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary; it can be the internal communication of two components or the interaction relationship between two components . Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present utility model according to specific situations.

In one embodiment of the present invention, as shown in FIGS. 1-3 , a light-emitting head-mounted device is provided. Specifically, the head-mounted device is preferably an air conduction earphone, a hearing aid or a bone conduction earphone. The luminous head-mounted device includes a headband 1 , a fixing block 2 , a shell 3 and a light source 4 . A light guide strip 5 is provided along the extending direction of the headband 1 . Generally, the light guide strip 5 and the headband 1 form a double-layer structure of equal length. The light guide strip 5 has a light source end 51 . Specifically, the light guide strip 5 is a fluorescent light guide strip or a non-fluorescent light guide strip with a built-in optical fiber 52. The fluorescent light guide strip can be a light-transmitting material strip containing fluorescent substances instead of a fluorescent light guide strip. It can be a strip of light-transmitting material without fluorescent substance, so the non-fluorescent light guide strip needs built-in optical fiber 52 . The two ends of the fluorescent light guide strip or the two ends of the optical fiber 52 respectively correspond to the heads of the two light sources 4 .

If the light guide strip 5 is a fluorescent light guide strip, when the light source illuminates the fluorescent light guide strip, the fluorescent material inside it can refract or reflect the light to make the whole body glow, which has the advantage of uniform light emission, so no optical fiber is needed for light guide. Of course, an optical fiber can also be arranged inside the fluorescent light guide strip.

The fixing block 2 is arranged at the end of the headband 1 , and the light guide strip 5 is fixed on the fixing block 2 . The housing 3 is provided with an insertion portion 31, specifically, the insertion portion 31 is an insertion hole, and may also be a slot or socket. The fixing block 2 is fixed in the insertion part 31 . The connection between the fixed block 2 and the insertion part 3 simplifies the production and assembly process, improves the production efficiency, improves the yield rate and reduces the cost. The light source end 51 is flush with the lower end surface of the fixing block 2 , and the light source 4 is fixed in the casing 3 and corresponds to the light source end 51 , furthermore, the light source 4 is preferably an LED lamp.

By positioning the light source end 51 of the light guide strip 5 and the light source 4 in this light-emitting head-mounted device, the alignment between the two is realized. The light source 4 can always maintain a fixed position with the light source end 51. The light guide strip 5 can be better incident from the light source end 51, and the light guide strip 5 has a better luminous effect and stable luminous performance.

In another embodiment of the present invention, as shown in Figures 1-3, the light-emitting head-mounted device further includes a PCB board 6, the PCB board 6 is fixed in the housing 3, and the light source 4 is arranged on the PCB board 6, The inner wall of the housing 3 is provided with a first limiting member 35 , and the light source 4 is fixed between the first limiting member 35 and the PCB 6 . Further, the power supply of the light source 4 can be realized through the PCB board 6, and the PCB board 6 can be powered by an external power source or directly by a battery.

Specifically, as shown in Figures 1-3, the first limiting member 35 is a plate-shaped member with a step portion 351, and a light shielding sleeve 41 is placed on the side of the light source 4, and the light shielding sleeve 41 abuts against the step. On the portion 351, the light-shielding sleeve 41 can further prevent light leakage. The rear end of the light source 4 is limited on the PCB 6 , and its front end is limited on the step portion 351 by the light-shielding sleeve 41 , thereby realizing the positioning and fixing of both ends of the light source 4 , and the position of the light source 4 is fixed. Using the PCB board 6 to fix the light source 4 can effectively utilize the original structure without adding other positioning structures, which is beneficial to simplify the structure and reduce the cost.

In another embodiment of the present utility model, as shown in FIGS. 1-3 , the insertion part 31 of the luminous head-mounted device has an insertion opening 312 and a pair of interfaces 313, and the fixing block 2 is inserted into the insertion part through the insertion opening 312. 31, the docking port 313 corresponds to the light source 4, the inner circumference of the insertion port 312 is provided with a limiting rib 314, the end of the fixed block 2 is limited to the limiting rib 314, and the insertion port 312 is inserted into the fixed block 2 until its end is in contact with the limiting rib 314. The bit ribs 314 abut against each other to realize the position limitation of the insertion process.

In another embodiment of the present utility model, as shown in 4-6, a concave-convex matching structure is provided between the fixing block 2 and the housing 3 of the light-emitting head-mounted device, and the concave-convex matching structure is used for the fixing block 2 and the housing 3 The fixing between them is also convenient for assembly.

In another embodiment of the present utility model, as shown in 4-6, the concave-convex matching structure of the light-emitting head-mounted device includes a groove 21 and a protrusion 32, the groove 21 is arranged on the fixing block 2, and the protrusion The block 32 is arranged on the casing 3 , and the protrusion 32 is embedded in the groove 21 .

It should be understood that the protrusions are provided on the fixing block, and the grooves are provided on the shell, which can also realize the concave-convex matching function.

In another embodiment of the present utility model, as shown in 4-6, the shell 3 of the light-emitting head-mounted device includes a shell body 33 and a shell side cover 34, and the shell side cover 34 is snap-connected with the shell body 33 , the insertion part 31 is formed at the end of the housing main body 33, the protrusion 32 is arranged on the housing side cover 34, the hole wall of the insertion part 31 is provided with a through hole 311, and the protrusion 32 passes through the through hole 311 and is inserted into the groove 21 In this way, the fixing and assembly between the housing side cover 34, the housing main body 33 and the fixing block 2 can be realized through a bump 32, preventing the fixing block 2 from being pulled out, enhancing product reliability, simplifying the structure and assembly process, Improve production efficiency and reduce costs.

In another embodiment of the present invention, as shown in FIG. 9 , the PCB board 6 of the light-emitting head-mounted device is provided with a right-angle notch 61, and the left and right sides of the light-shielding sleeve 41 are respectively limited by the first position-limiting member. 35 and the right-angle notch 61, the light source 4 is further prevented from shifting, and the position of the light source 4 is further fixed. The shading sleeve 41 improves the light-gathering effect and avoids light scattering and light leakage.

In another embodiment of the present utility model, as shown in FIG. 9 , the two fixing blocks 2 of the luminescent head-mounted device are respectively arranged at both ends of the headband 1 in an enlarged shape, and the two fixing blocks 2 are fixed respectively. In the insertion portions 31 of the two housings 3 , the two light sources 4 correspond to the two fixing blocks 2 respectively.

It should be understood that the number of light sources 4 only needs to be at least one, and when two light sources 4 irradiate the light guide strip 5 , the light emitting effect at both ends of the light guide strip 5 is more uniform and the brightness is consistent.

In another embodiment of the present utility model, as shown in FIG. 10, a built-in hole 22 is provided in the fixed block 2, and the light source end 51 is accommodated in the built-in hole 22, and the light source 4 extends into the built-in hole 22 to correspond to To the light source end 51.

In another embodiment of the present utility model, as shown in Figure 11, the light source end 51 protrudes from the fixing block 2, the light source 4 is provided with a sleeve 7, and the two ends of the sleeve 7 are sleeved on the light source 4 and the light source end 51 respectively. superior.

The above two designs can realize the alignment of the light source 4 and the light source end 51, and the positions of the two are relatively fixed without deviation.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (10)

A light-emitting head-mounted device, comprising: A headband, a light guide strip is provided along the extending direction of the headband, and the light guide strip has a light source end; It is characterized in that it also includes: A fixed block, the fixed block is arranged at the end of the headband, and the light guide strip is fixed on the fixed block; a housing, the housing is provided with an insertion part, and the fixing block is fixed in the insertion part; and A light source, the light source is fixed in the casing and corresponds to the light source end. The light-emitting head-mounted device according to claim 1, wherein a concave-convex matching structure is provided between the fixing block and the housing, and the concave-convex matching structure includes a groove and a bump, and the concave-convex matching structure includes a groove and a bump. The groove is arranged on the fixed block, the protrusion is arranged on the shell, and the protrusion is embedded in the groove. The light-emitting head-mounted device according to claim 2, wherein the housing comprises a housing main body and a housing side cover, the housing side cover is snap-connected with the housing main body, and the insertion part is formed on The end of the housing main body, the protrusion is arranged on the side cover of the housing, the hole wall of the insertion part is provided with a through hole, and the protrusion passes through the through hole and inserts into the groove middle. The light-emitting head-mounted device according to claim 1, wherein a built-in hole is provided in the fixed block, the light source end is accommodated in the built-in hole, and the light source extends into the built-in hole. The hole is hidden to correspond to the light source end; or the light source end is flush with the lower end surface of the fixed block; or the light source end protrudes from the fixed block, and a sleeve is provided on the light source, and the sleeve The two ends of the barrel are sleeved on the light source and the end of the light source respectively. The light-emitting head-mounted device according to claim 1, further comprising a PCB board, the PCB board is fixed in the housing, the light source is arranged on the PCB board, and the inner wall of the housing A first limiting member is arranged on it, and the light source is fixed between the first limiting member and the PCB board. The light-emitting head-mounted device according to claim 5, wherein the first limiting member is a plate-shaped member, the plate-shaped member has a stepped portion, and a light-shielding sleeve covers the side of the light source. , the shading sleeve abuts on the step portion; the rear end of the light source is limited on the PCB, and the front end of the light source is limited on the step portion by the shading sleeve. The light-emitting head-mounted device according to claim 6, wherein the PCB board is provided with a right-angle notch, and the left and right sides of the light-shielding cover are respectively limited by the first limiting member and the right-angle. between gaps. The light-emitting head-mounted device according to any one of claims 1-7, wherein the insertion part has an insertion port and a pair of interfaces, the fixing block is inserted into the insertion part from the insertion port, The docking port corresponds to the light source, the inner periphery of the insertion port is provided with a limiting rib, and the end of the fixing block is limited by the limiting rib. According to the light-emitting head-mounted device according to any one of claims 1-7, it is characterized in that the two fixed blocks are respectively arranged at both ends of the headband in an enlarged shape, and the two fixed blocks are respectively fixed in the insertion parts of the two housings, and the two light sources correspond to the two fixing blocks respectively; the light guide strip is a fluorescent light guide strip or a non-fluorescent light guide strip with built-in optical fibers, so The two ends of the fluorescent light guide strip or the two ends of the optical fiber respectively correspond to the heads of the two light sources. The light-emitting head-mounted device according to claim 9, wherein an optical fiber is arranged in the fluorescent light-guiding strip.

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