Vibrating reed integrated bone conduction horn structure

Abstract

The utility model discloses a vibrating reed integrated bone conduction horn structure, which comprises a bracket, a vibrating reed, a voice coil, a PCB (Printed Circuit Board), an iron basin, a magnet and a washer, the support and the vibrating reed are both made of plastic materials, the support and the vibrating reed are integrally formed in an injection molding mode, the support is provided with a concave cavity with an opening in the upper end, the vibrating reed is located at the lower section position of the concave cavity, the PCB, the voice coil, the washer, the magnet and the iron basin are sequentially arranged on the concave cavity from top to bottom, and the lower end of the iron basin makes contact with the vibrating reed; thus, the vibrating reed and the support are integrally formed in an injection molding mode, extra manufacturing of the vibrating reed is omitted, firmness of the whole structure of the product is improved, assembling is convenient, meanwhile, the weakness that F0 adjacent frequency signals are seriously distorted due to the fact that a traditional metal elastic piece material is hard is avoided, audio signal current can drive the vibrator to make sound more easily, and the sound quality is improved. And the vibration operation is more stable, the sound conduction is clearer, the usability is good, and the application range is wide.

Description

Technical Field

[0001] The utility model relates to the technology of the loudspeaker field, and in particular to a bone conduction loudspeaker structure with an integrated vibration plate. Background Art

[0002] At present, bone conduction is a sound conduction method that converts sound into mechanical vibrations of different frequencies, and transmits sound waves through the human sacrum, bony labyrinth, inner ear lymph, cochlear organ, and auditory center. Compared with the classic sound conduction method that generates sound waves through the diaphragm, bone conduction omits many steps of sound wave transmission, can achieve clear sound restoration in noisy environments, and the sound waves will not affect others because of spreading in the air.

[0003] Typically, bone conduction headphones generally include a headphone housing, a bone conduction speaker and an audio output circuit arranged in the headphone housing. The audio output circuit outputs an electrical signal to the bone conduction speaker, causing the bone conduction speaker to vibrate accordingly according to the received electrical signal and drive the headphone housing to vibrate. Since the headphone housing is in direct contact with the ear canal, the headphone housing can drive the bone to vibrate, and the sound waves are transmitted to the inner ear through the vibration of the bone. However, the existing bone conduction speaker structure is poorly designed, and its vibrating plate and bracket are separated, so that the vibrating plate is assembled with components such as the voice coil and then assembled with the bracket. As a result, when the bone conduction speaker drives the headphone housing to vibrate to transmit sound waves to the inner ear, the sound transmission is unclear or the frequency signal is severely distorted, thereby reducing the user experience and having a small scope of application.

[0004] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0005] In view of this, the present invention aims to address the deficiencies in the prior art, and its main purpose is to provide a bone conduction speaker structure with an integrated vibration plate, which eliminates the additional production of the vibration plate, improves the firmness of the overall structure of the product, facilitates assembly, and reduces the production cost of the product. At the same time, it avoids the weakness of the traditional use of metal shrapnel, which is relatively hard and causes severe distortion of the F0 adjacent frequency signal, making it easier for the audio signal current to drive the vibrator to pronounce, and the vibration operation is smoother, the sound transmission is clearer, the usability is good, and the scope of application is wide.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A bone conduction speaker structure with an integrated vibrating plate comprises a bracket, a vibrating plate, a voice coil, a PCB, an iron basin, a magnet, and a washer; wherein: the bracket and the vibrating plate are both made of plastic, and the bracket and the vibrating plate are integrally formed by injection molding; the bracket has a concave cavity with an open upper end, the vibrating plate is located in the lower section of the concave cavity, the PCB, voice coil, washer, magnet, and iron basin are sequentially arranged on the concave cavity from top to bottom, and the lower end of the iron basin contacts the vibrating plate.

[0008] As a preferred embodiment, the vibration plate includes an inner ring portion, and the outer side of the inner ring portion is provided with more than two first connection portions extending outward, the outer end of the first connection portion is an elastic connection edge extending axially along the inner ring portion, and the end of the elastic connection edge has a second connection portion connected to the bracket.

[0009] As a preferred solution, three of each of the first connecting portion, the second connecting portion and the elastic connecting edge are provided.

[0010] As a preferred solution, a positioning opening for contacting and positioning with the iron basin is opened on the vibration plate.

[0011] As a preferred solution, the iron basin has a positioning portion extending downward, and the positioning portion is adapted to be positioned on the positioning opening.

[0012] As a preferred solution, the vibration plate has a protrusion extending upward, the protrusion is annularly extended around the upper edge of the positioning opening, and the upper end of the protrusion contacts and is positioned at the lower end of the iron basin.

[0013] As a preferred solution, a step surface is provided at the upper end of the bracket, and the lower end edge of the PCB board contacts the step surface.

[0014] As a preferred solution, a protective cover is provided at the lower end of the cavity, and the protective cover is located at the lower side of the vibration plate.

[0015] As a preferred solution, the protective cover is a stainless steel protective cover.

[0016] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that the vibration plate is designed to be plastic, and the vibration plate and the bracket are integrally formed by injection molding, thereby eliminating the additional production of the vibration plate, thereby improving the firmness of the overall structure of the product, facilitating assembly, and reducing the production cost of the product. At the same time, it avoids the weakness of the traditional use of hard metal springs that causes severe distortion of F0 adjacent frequency signals, making it easier for the audio signal current to drive the vibrator to sound, and the vibration operation is more stable, and the power consumption loss of audio signal transmission is reduced, the ability to restore musical instruments and human voices is more perfect, the sound transmission is clearer, the usability is good, and the scope of application is wide.

[0017] Furthermore, the setting of the protrusion is conducive to the supporting connection between the vibration plate and the iron basin, thereby ensuring the firmness of the connection between the vibration plate and the iron basin.

[0018] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of an embodiment of the present utility model;

[0020] Figure 2 It is a schematic diagram of a bracket and a vibrating plate according to an embodiment of the present invention.

[0021] Description of the accompanying drawings:

[0022] 11. Bracket 111, cavity

[0023] 112, step surface 12, vibration plate

[0024] 121, inner ring portion 122, first connecting portion

[0025] 123. Elastic connecting edge 124. Second connecting portion

[0026] 125, positioning hole 126, protrusion

[0027] 13. Voice coil 14. PCB board

[0028] 15. Iron basin 151. Positioning part

[0029] 16. Magnet 17. Washer

[0030] 18. Protective cover. DETAILED DESCRIPTION

[0031] Please refer to Figures 1 to 2 As shown, it shows the specific structure of an embodiment of the present utility model.

[0032] A bone conduction speaker structure with an integrated vibrating plate includes a bracket 11, a vibrating plate 12, a voice coil 13, a PCB 14, an iron basin 15, a magnet 16, and a washer 17. The bracket 11 and vibrating plate 12 are both made of plastic and are integrally formed by injection molding. The bracket 11 has a concave cavity 111 with an open top. The vibrating plate 12 is located at the lower end of the concave cavity 111. The PCB 14, voice coil 13, washer 17, magnet 16, and iron basin 15 are sequentially arranged on the concave cavity 111 from top to bottom. The lower end of the iron basin 15 contacts the vibrating plate 12.

[0033] Specifically, the vibration plate 12 includes an inner ring portion 121, and the outer side of the inner ring portion 121 is provided with two or more first connecting portions 122 extending outward, and the outer end of the first connecting portion 122 is provided with an elastic connecting edge 123 extending axially along the inner ring portion, and the end of the elastic connecting edge 123 has a second connecting portion 124 connected to the bracket 11. Preferably, the first connecting portion 122, the second connecting portion 124 and the elastic connecting edge 123 are each provided with three. It should be noted that the product is circular or runway-shaped as a whole. In this way, the vibration plate is The plastic design uses the vibration plate and the bracket to be integrally formed by injection molding, eliminating the additional production of the vibration plate, improving the firmness of the overall structure of the product, facilitating assembly, and reducing the production cost of the product. The vibration plate is in contact with the lower end of the iron basin, making it easier for the audio signal current to drive the vibrator to produce sound, and the vibration operation is smoother, avoiding the weakness of the traditional use of hard metal shrapnel, which causes severe distortion of the F0 adjacent frequency signal. This reduces the power consumption loss of audio signal transmission, makes the reproduction of musical instruments and human voices more perfect, and makes the sound transmission clearer. It has good usability and a wide range of applications.

[0034] In addition, the vibration plate 12 is provided with a positioning opening 125 for contacting and positioning with the iron basin, and the iron basin 15 has a positioning portion 151 extending downward, and the positioning portion 151 is adapted to be positioned on the positioning opening 125; specifically, the vibration plate 12 has a protrusion 126 extending upward, and the protrusion 126 is annularly extended around the upper edge of the positioning opening, and the upper end of the protrusion 126 contacts and is positioned with the lower end of the iron basin 15. In this way, the setting of the positioning opening and the positioning portion facilitates the connection and positioning between the iron basin and the vibration plate, and the setting of the protrusion is beneficial to the support connection between the vibration plate and the iron basin, thereby ensuring the firmness of the connection between the vibration plate and the iron basin.

[0035] In addition, a step surface 112 is provided at the upper end of the bracket 11, and the lower edge of the PCB board 14 contacts the step surface 112. At the same time, a protective cover 18 is provided at the lower end of the cavity 111. The protective cover 18 is located on the lower side of the vibration plate. Preferably, the protective cover 18 is a stainless steel protective cover.

[0036] The key points of the design of the utility model are that the vibration plate is made of plastic, and the vibration plate and the bracket are integrally formed by injection molding, thereby eliminating the additional production of the vibration plate, thereby improving the firmness of the overall structure of the product, facilitating assembly, and reducing the production cost of the product. At the same time, it avoids the weakness of the traditional use of hard metal shrapnel, which causes severe distortion of F0 adjacent frequency signals. The audio signal current is more likely to drive the vibrator to produce sound, and the vibration operation is more stable. The power consumption loss of the audio signal transmission is reduced, the ability to restore musical instruments and human voices is more perfect, the sound transmission is clearer, the usability is good, and the application range is wide.

[0037] Furthermore, the setting of the protrusion is conducive to the supporting connection between the vibration plate and the iron basin, thereby ensuring the firmness of the connection between the vibration plate and the iron basin.

[0038] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A bone conduction speaker structure with an integrated vibrating plate, characterized by: The invention comprises a bracket, a vibration plate, a voice coil, a PCB board, an iron basin, a magnet and a washer; wherein: the bracket and the vibration plate are both made of plastic, and the bracket and the vibration plate are integrally formed by injection molding; the bracket has a concave cavity with an upper end opening, the vibration plate is located in the lower part of the concave cavity, the PCB board, voice coil, washer, magnet and iron basin are arranged on the concave cavity from top to bottom, and the lower end of the iron basin is in contact with the vibration plate.

2. The bone conduction speaker structure with an integrated vibration plate according to claim 1, characterized in that: The vibration plate includes an inner ring portion, and the outer side of the inner ring portion is provided with more than two first connection portions extending outward, the outer end of the first connection portion is an elastic connection edge extending axially along the inner ring portion, and the end of the elastic connection edge has a second connection portion connected to the bracket.

3. The bone conduction speaker structure with an integrated vibration plate according to claim 2, characterized in that: There are three of each of the first connecting portion, the second connecting portion and the elastic connecting edge.

4. The bone conduction speaker structure with an integrated vibration plate according to claim 1, characterized in that: The vibration plate is provided with a positioning opening for contacting and positioning with the iron basin.

5. The bone conduction speaker structure with an integrated vibration plate according to claim 4, characterized in that: The iron basin has a positioning portion extending downward, and the positioning portion is adapted to be positioned on the positioning opening.

6. The bone conduction speaker structure with an integrated vibration plate according to claim 4, characterized in that: The vibration plate has a protrusion extending upward, the protrusion is annularly extending around the upper edge of the positioning opening, and the upper end of the protrusion contacts and is positioned at the lower end of the iron basin.

7. The bone conduction speaker structure with an integrated vibration plate according to claim 1, characterized in that: The upper end of the bracket is provided with a step surface, and the lower end edge of the PCB board contacts the step surface.

8. The bone conduction speaker structure with an integrated vibration plate according to claim 1, characterized in that: A protective cover is provided at the lower end of the cavity, and the protective cover is located at the lower side of the vibration plate.

9. The bone conduction speaker structure with an integrated vibration plate according to claim 8, characterized in that: The protective cover is a stainless steel protective cover.

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