CN220440913U

CN220440913U - Bone conduction loudspeaker

Info

Publication number: CN220440913U
Application number: CN202320912580.6U
Authority: CN
Inventors: 陆浩华
Original assignee: Shenzhen Aoduoge Technology Co ltd
Current assignee: Shenzhen Aoduoge Technology Co ltd
Priority date: 2023-04-21
Filing date: 2023-04-21
Publication date: 2024-02-02
Anticipated expiration: 2033-04-21

Abstract

The utility model provides a bone conduction loudspeaker, which comprises an integral structural member, wherein the integral structural member is formed by integrally forming a bracket, a weight piece, a U-shaped iron and an elastic sheet, the bracket, the weight piece, the U-shaped iron and the elastic sheet are formed into an integral structure through injection molding, and the injection molding operation does not need manual operation due to high precision of an injection mold, so that the problems in the assembly process are fewer, the assembly efficiency is higher, the connection of the bracket, the weight piece, the U-shaped iron and the elastic sheet on the assembled integral structural member is more stable, the falling phenomenon is not easy to occur, the integral quality of the loudspeaker is improved, and the service life of the loudspeaker is prolonged.

Description

Bone conduction loudspeaker

Technical Field

The utility model relates to the technical field of speakers, in particular to a bone conduction speaker.

Background

Typically sound is transmitted by air conduction, and vibrations of the sound are transmitted to the tympanic membrane in the ear. There are three ossicles in the ear through which sound is transmitted to the cochlea by vibration of the periosteum. The cochlea is filled with lymph fluid, and vibration of the lymph fluid reaches auditory nerves in the process of being converted into an electric signal. The human brain can recognize the sound in the above manner. The so-called bone conduction is to omit the process of vibration passing through periosteum and ossicles in the recognition mechanism of sound, and to transmit the vibration of sound directly to the cochlea through the cranium. Therefore, even for those with abnormal hearing loss in periosteum and ossicles, when the cochlea or auditory nerve is still normal, the sound can be clearly heard by means of bone conduction. The speaker using this principle is a bone conduction speaker. In the traditional production and assembly process of the bone conduction speaker, all parts are assembled and glued by hand, but the manual glue adding and gluing assembly mode has the advantages of more human factors, large assembly tolerance, low assembly efficiency, low service life of products, easy degumming and difficulty in ensuring the consistency of the products.

Disclosure of Invention

The utility model mainly aims to provide a bone conduction loudspeaker which is used for solving the problems of large matching tolerance, low assembly efficiency, low product service life, easy degumming and difficulty in ensuring the consistency of products in the assembly mode of manually adding and gluing in the production and assembly process of the traditional bone conduction loudspeaker.

In order to achieve the above purpose, the present utility model is realized by the following technical scheme:

the utility model provides a bone conduction loudspeaker which comprises an integrated structural part, wherein the integrated structural part is formed by integrally forming a bracket, a weight piece, U-shaped iron and a spring piece.

Further, at least one first limiting part is arranged on the integral structural part, and the first limiting part is positioned at the joint of the support and the outer ring of the elastic sheet and is fixedly connected with the support and the elastic sheet.

Further, at least one second limiting piece is arranged on the integral structural piece, and the second limiting piece is located at the joint of the inner ring of the elastic piece, the U-shaped iron and the counterweight piece and is fixedly connected with the U-shaped iron and the counterweight piece.

Further, the bone conduction speaker further comprises a rear cover, and the integral structural member is fixed in the rear cover.

Further, the bone conduction speaker further comprises a PCB fixedly mounted on the surface of the rear cover.

Further, the bone conduction speaker further comprises a magnet and a voice coil, wherein the magnet is fixedly adhered in the integral structural member, the voice coil is installed in the integral structural member, and the voice coil is electrically connected with the PCB.

Further, a first step is arranged on the support, and when the integrated structure is fixedly connected with the rear cover, the first step abuts against the inner side wall of the rear cover.

Further, the bone conduction speaker further comprises a surface cover, a second step is further arranged on the support, and when the surface cover is fixedly connected with the support, the surface cover is contained in the second step, and the end face of the surface cover is leveled with the end face of the second step.

The utility model has the beneficial effects that:

the integral structural member in the bone conduction loudspeaker is of an integral structure formed by the bracket, the weight piece, the U-shaped iron and the elastic piece through injection molding, and the injection molding operation does not need manual operation due to high precision of the injection molding mold, so that the problems in the assembly process are fewer, the assembly efficiency is higher, the connection of the bracket, the weight piece, the U-shaped iron and the elastic piece on the assembled integral structural member is more stable, the falling phenomenon can not occur easily, the overall quality of the loudspeaker is improved, and the service life of the loudspeaker is prolonged.

Drawings

Fig. 1 is a schematic structural view of a bone conduction speaker according to the present utility model;

FIG. 2 is a schematic structural view of an integrated structural member of the present utility model;

fig. 3 is a schematic structural diagram of the spring plate of the present utility model.

Reference numerals illustrate:

10: a PCB board; 20: a rear cover; 30: an integral structural member; 301: a bracket; 3011: a first step; 3012: a second step; 302: a weight member; 303: u-shaped iron; 304: a spring plate; 305: a first limiting member; 306: a second limiting piece; 40: a magnet; 50: a voice coil; 60: a face cover; 70: and (5) injection molding holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Examples

Referring to fig. 1 and 2, in the present embodiment, a bone conduction speaker is provided, the bone conduction speaker includes an integral structural member 30, and the integral structural member 30 is formed by integrally forming a bracket 301, a weight 302, a U-shaped iron 303, and a spring plate 304.

In this embodiment, the U-shaped iron 303 and the elastic piece 304 are made of metal materials, the elastic piece 304 has an annular structure and is divided into an inner ring and an outer ring, the inner ring of the elastic piece 304 is fixedly connected with the U-shaped iron 303, the outer ring of the elastic piece 304 is fixedly connected with the bracket 301, and the fixed connection between the two is achieved through injection molding. The injection molding mode is as follows: the elastic sheet 304 and the U-shaped iron 303 are placed in a special injection mold, and then the bracket 301 and the counterweight 302 are formed by injection molding, so that the bracket 301, the counterweight 302, the U-shaped iron 303 and the elastic sheet 304 are integrated into a structure so as to be fixedly connected with each other. The bracket 301 and the counterweight 302 are directly formed in an injection molding mode, the injection molding die is high in precision, the injection molding operation does not need manual operation, only an injection molding machine is required to be operated for injection molding in the assembly process, the machine is used for replacing manual operation, the problem of machine injection molding is fewer, the assembly efficiency is higher, the connection of the bracket 301, the counterweight 302, the U-shaped iron 303 and the elastic sheet 304 on the assembled integrated structural member 30 is more stable, the falling phenomenon can not occur easily, the overall quality of the loudspeaker is improved to some extent, and the service life of the loudspeaker is prolonged. During injection molding, a gap can be reserved between the inner ring of the elastic piece 304, the U-shaped iron 303 and the counterweight 302, so that injection molded plastic enters the gap, and more plastic bonds can be formed between the joints of the three.

Referring to fig. 3, in this embodiment, four injection holes 70 are respectively formed in the outer ring and the inner ring of the elastic sheet 304, and after the elastic sheet is placed in an injection mold for injection molding, a first limiting member 305 and a second limiting member 306 are formed at the positions of the injection holes 70, and the first limiting member 305 is located at the connection position between the support 301 and the outer ring of the elastic sheet 304 and is fixedly connected with the support 301 and the elastic sheet 304. The second limiting member 306 is located at the connection between the inner ring of the elastic sheet 304 and the U-shaped iron 303, and the weight 302, and is fixedly connected with the U-shaped iron 303 and the weight 302. The first limiting member 305 and the second limiting member 306 have a columnar structure, and are uniformly distributed on the outer ring and the inner ring of the elastic sheet 304 at ninety degrees. The first limiting member 305 is integrally connected to the bracket 301, and the second limiting member 306 is integrally connected to the weight 302. When the inner ring of the elastic piece 304, the U-shaped iron 303 and the counterweight 302 are injection molded, a gap is left between the inner ring and the U-shaped iron 303, and the injection molding hole 70 is not required to be arranged on the elastic piece 304, so that the inner ring, the U-shaped iron 303 and the counterweight 302 are directly connected through plastic, and a limiting part is not generated. The weight 302 is mainly used for adjusting vibration damping to obtain maximum amplitude and optimal sound quality, and the amplitude of the spring plate can be adjusted by adjusting the weight of the weight 302, so that the sound quality of the bone conduction speaker can be adjusted.

Further, in the present embodiment, the bracket 301 is provided with a first step 3011 and a second step 3012, and when the integrated structure is fixedly connected to the rear cover 20, the first step 3011 abuts against the inner side wall of the rear cover 20. The bone conduction speaker further comprises a face cover 60, wherein when the face cover 60 is fixedly connected with the support 301, the face cover 60 is accommodated in the second step 3012, and the end face of the face cover 60 is leveled with the end face of the second step 3012.

Further, the bone conduction speaker further includes a rear cover 20, and the integral structure 30 is fixed in the rear cover 20. The bone conduction speaker further comprises a PCB board 10, and the PCB board 10 is fixedly mounted on the surface of the rear cover 20. The bone conduction speaker further comprises a magnet 40 and a voice coil 50, wherein the magnet 40 is fixedly adhered in the integral structural member 30, the voice coil 50 is installed in the integral structural member 30, and the voice coil 50 is electrically connected with the PCB 10.

In the present embodiment, the PCB 10, the magnet 40, the voice coil 50, the rear cover 20, and the front cover 60 are all made of conventional technology, and thus are not described in detail herein.

Examples

In this embodiment, a bone conduction speaker is provided, where the bone conduction speaker includes an integral structural member 30, a PCB board 10, a magnet 40, a voice coil 50, a rear cover 20, and a face cover 60, and the integral structural member 30 is formed by integrally molding a bracket 301, a counterweight 302, a U-shaped iron 303, and a spring plate 304. The mounting positions and connection relationships among the integrated structural member 30, the PCB board 10, the magnet 40, the voice coil 50, the rear cover 20, and the face cover 60 are the same as those of embodiment 1. In this embodiment, the U-shaped iron 303 is made of a metal material, and the U-shaped iron 303 is placed in an injection mold and then injection molded during injection molding, so as to directly form the bracket 301, the spring 304, and the weight 302, that is, the bracket 301, the spring 304, and the weight 302, which are all formed by injection molding. The injection molding mode is faster and more convenient, and injection molding can be started only by putting the U-shaped iron 303 into an injection mold.

It should be noted that the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the embodiments, and when the technical solutions are contradictory or cannot be implemented, those skilled in the art should consider that the technical solutions are not combined, and are not within the scope of protection claimed by the present utility model.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present utility model.

Claims

1. The bone conduction loudspeaker is characterized by comprising an integrated structural part, wherein the integrated structural part is formed by integrally forming a bracket, a weight piece, U-shaped iron and an elastic sheet.

2. The bone conduction speaker according to claim 1, wherein the integral structure is provided with at least one first limiting member, and the first limiting member is located at a connection position between the bracket and the outer ring of the elastic sheet and is fixedly connected with the bracket and the elastic sheet at the same time.

3. The bone conduction speaker according to claim 1, wherein at least one second limiting member is provided on the integral structural member, and the second limiting member is located at a connection position between the inner ring of the elastic sheet and the U-shaped iron and between the inner ring of the elastic sheet and the weight member, and is fixedly connected with the U-shaped iron and the weight member at the same time.

4. The bone conduction speaker of claim 1, further comprising a rear cover, the integral structure being secured within the rear cover.

5. The bone conduction speaker of claim 4, further comprising a PCB board fixedly mounted to a surface of the rear cover.

6. The bone conduction speaker of claim 5, further comprising a magnet fixedly attached within the integral structure and a voice coil mounted within the integral structure, the voice coil electrically connected to the PCB.

7. The bone conduction speaker according to claim 4, wherein a first step is provided on the bracket, the first step abutting against an inner sidewall of the rear cover when the integrated structure is fixedly connected with the rear cover.

8. The bone conduction speaker according to claim 1, further comprising a face cover, wherein a second step is further provided on the bracket, the face cover is accommodated in the second step when the face cover is fixedly connected to the bracket, and an end face of the face cover is leveled with an end face of the second step.