Bone conduction vibrator with protection structure

Abstract

The bone conduction vibrator with the protection structure comprises a hard shell, a vibrator body and a soft piece, a cavity is formed in the hard shell, and a first opening and a second opening which are communicated with the cavity are formed in the two ends of the hard shell; the oscillator main body is accommodated in the cavity, and the second opening exposes the power connection part of the oscillator main body; the soft part wraps the outer wall of the oscillator main body; the first sealing cover is used for filling a gap between the oscillator main body and the hard shell and sealing and covering the first opening at the same time; the gap between the oscillator main body and the hard shell is filled with the soft piece, so that dust and dirt can be effectively prevented from invading the oscillator main body, interference of the dust on the oscillator main body is further avoided, the transmission quality of sound is ensured, and a better service life is obtained.

Description

Technical Field

[0001] The present invention relates to the field of vibrator structures, and in particular to a bone conduction vibrator with a protective structure. Background Art

[0002] People can hear sounds because air transmits vibrations to the eardrum through the external ear canal. The vibrations formed by the eardrum drive the auditory nerve, thereby perceiving the vibrations of the sound. Bone conduction technology can transmit sound to the auditory nerve through the skin, subcutaneous tissue and bones, so that people can hear the sound. Bone conduction technology is generally implemented through a bone conduction vibrator. In the prior art, a bone conduction vibrator generally includes a shell and a vibrator body. The shell is a hard shell and nearly wraps the vibrator body to protect the vibrator body. However, in actual use, it is found that the above design has the following problems: the hard shell does not adequately seal the vibrator body, and dust or dirt is easily accumulated, which has a significant impact on the transmission effect of the vibrator body. Therefore, a bone conduction vibrator structure with a more reasonable structure is urgently needed to solve the deficiencies in the above prior art. Summary of the invention

[0003] In view of the technical problem in the prior art that the shell and the vibrator body of the bone conduction vibrator are relatively simple in coordination, which is prone to insufficient sealing and leads to poor transmission effect, the present invention provides a solution.

[0004] To achieve the above object, the present invention provides a bone conduction vibrator with a protective structure, comprising: A hard shell, wherein a cavity is provided in the hard shell, and a first opening and a second opening communicating with the cavity are formed at two ends; A vibrator body, the vibrator body is accommodated in the cavity, and the second opening is used to expose the power connection part of the vibrator body; A soft component covers the outer wall of the vibrator body to fill the gap between the vibrator body and the hard shell, and seals and covers the first opening.

[0005] As an improved solution of the present invention, the inner wall of the first opening of the hard shell is provided with a step structure, and the soft component is provided with a sealing ring that fits on the table surface of the step structure.

[0006] As an improved solution of the present invention, the table top of the step structure is provided with a first sealing groove, the fitting surface between the sealing ring and the step structure is provided with a first protrusion, and the first protrusion is embedded and connected in the first sealing groove.

[0007] As an improved solution of the present invention, a sealant is filled between the first sealing groove and the first protrusion.

[0008] As an improved solution of the present invention, the hard shell is further provided with a second sealing groove on the inner wall of the upper portion of the step structure, and the outer side surface of the sealing ring is provided with a second protrusion engaged with the second sealing groove.

[0009] As an improved solution of the present invention, the vibrator body is divided into a first part and a second part, the cross-sectional diameter of the first part is larger than the cross-sectional diameter of the second part; the inner wall of the hard shell is provided with an abutment ring extending toward the inner cavity; the soft part is provided with a wrapping part for completely wrapping the first part, and has an interference fit with the hard shell; the abutment ring is used to abut the plane formed by the first part and the wrapping part.

[0010] As an improved solution of the present invention, a gap is formed between the inner top surface of the soft component and the vibration surface of the first part, and the inner top surface is provided with a conductive protrusion extending to the vibration surface.

[0011] As an improved solution of the present invention, the outer top surface of the soft part is provided with a raised portion.

[0012] As an improved solution of the present invention, the material of the hard shell is metal or engineering plastic.

[0013] As an improved solution of the present invention, the material of the soft part is silicone, rubber or TPE.

[0014] The beneficial effects of the present invention are as follows: compared with the prior art, the present invention provides a bone conduction vibrator with a protective structure, comprising a hard shell, a vibrator body and a soft component, wherein a cavity is provided in the hard shell, and a first opening and a second opening connected to the cavity are formed at both ends; the vibrator body is accommodated in the cavity, and the second opening is used to expose the power connection part of the vibrator body; the soft component covers the outer wall of the vibrator body to fill the gap between the vibrator body and the hard shell, and seals and covers the first opening at the same time; by filling the gap between the vibrator body and the hard shell with the soft component, dust and dirt can be effectively prevented from invading the vibrator body, thereby eliminating the interference of dust on the vibrator body, ensuring the sound transmission quality and obtaining a better service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A perspective view of the present invention; Figure 2 An exploded view of the present invention; Figure 3 is a cross-sectional view of the present invention; Figure 4 For the present invention Figure 4 A local enlarged view of area A; Figure 5 It is a three-dimensional diagram of the soft component of the present invention; Figure 6 is another three-dimensional diagram of the soft part of the present invention; Figure 7 For the present invention Figure 6 A local enlarged view of area B; Figure 8 It is a three-dimensional diagram of the vibrator body of the present invention.

[0016] The main component symbols are described as follows: 1. hard shell; 11. step structure; 12. first sealing groove; 13. second sealing groove; 14. Abutment ring; 2. Vibrator body; 21. First part; 22. Second part; 3. Soft part; 31. Sealing ring; 32. First protrusion; 33. Second protrusion; 34. Conductive protrusion; 35. Raised portion; 36. Wrapped portion. DETAILED DESCRIPTION

[0017] In order to more clearly illustrate the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0018] In the following description, the example details are given to provide a deeper understanding of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. It should be understood that the specific embodiments are only used to explain the present invention and are not used to limit the present invention.

[0019] It should be understood that when the terms "include" and / or "comprises" are used in this specification, they indicate the existence of the stated features, integers, steps, operations, elements or components, but do not exclude the existence or addition of one or more other features, integers, steps, operations, elements, components or combinations thereof.

[0020] In the prior art, a bone conduction vibrator generally includes a shell and a vibrator body. The shell is a hard shell and nearly wraps the vibrator body to protect the vibrator body. However, in actual use, it is found that the above design has the following problems: the hard shell does not seal the vibrator body sufficiently, and dust or dirt is easily accumulated, which greatly affects the transmission effect of the vibrator body. Therefore, in view of the technical problem that the shell and the vibrator body of the bone conduction vibrator in the prior art are relatively simple in coordination, and it is easy to have insufficient sealing and lead to poor transmission effect, the present application provides a bone conduction vibrator with a protective structure, please refer to the attached Figure 1 To Attachment Figure 8, comprising a hard shell 1, a vibrator body 2 and a soft component 3, wherein a cavity is provided in the hard shell 1, and a first opening and a second opening communicating with the cavity are formed at both ends; the vibrator body 2 is accommodated in the cavity, and the second opening is used to expose the power connection part of the array body; the soft component 3 covers the outer wall of the vibrator body 2 to fill the gap between the vibrator body 2 and the hard shell 1, and seals and covers the first opening at the same time; In this embodiment, the scheme and effect of the present application are explained in conjunction with the installation process: first, the vibrator body 2 is wrapped by the soft part 3, and then the vibrator body 2 in the wrapped state is loaded into the hard shell 1. The soft part 3 is elastic, and thus the gap between the hard part and the vibrator body 2 is effectively filled, so that the vibrator body 2 and the hard part are isolated from each other, avoiding the formation of gaps, and effectively preventing dust and dirt from invading and falling on the vibrator body 2.

[0021] It can be seen that filling the gap between the vibrator body 2 and the hard shell 1 with the soft part 3 can effectively prevent dust and dirt from invading the vibrator body 2, thereby eliminating the interference of dust on the vibrator body 2, ensuring the sound transmission quality and obtaining a better service life.

[0022] Regarding the installation of the first opening and the soft component 3, in this embodiment, the inner wall of the first opening of the hard shell 1 is provided with a step structure 11, and the soft component 3 is provided with a sealing ring 31 that fits on the surface of the step structure 11; on the one hand, the sealing ring 31 fits with the step structure 11, further improving the sealing performance; on the other hand, due to the fit between the sealing ring 31 and the step structure 11, the soft component 3 can be fixed at the expected position in a restricted manner during the process of being installed in the hard shell 1, thereby ensuring the accuracy of the installation position; In a further solution, in order to make the sealing between the sealing ring 31 and the step structure 11 better, in this embodiment, the table top of the step structure 11 is provided with a first sealing groove 12, and the fitting surface of the sealing ring 31 and the step structure 11 is provided with a first protrusion 32, and the first protrusion 32 is embedded and connected in the first sealing groove 12; it is not difficult to understand that even if a small gap is formed between the outer wall of the sealing ring 31 and the inner wall of the first opening due to mechanical errors, the first protrusion 32 and the first sealing groove 12 can cooperate to form a first interception structure to intercept and block dust and prevent dust from further invading the bone conduction vibrator; in a further solution, the first sealing groove 12 and the first protrusion 32 are filled with sealant; the sealant is liquid when it is not solidified, and the first protrusion 32 and the first sealing groove 12 squeeze the sealant during installation. The adhesive force formed after solidification avoids the formation of gaps while realizing the installation of the first protrusion 32 and the first sealing groove 12.

[0023] In a further solution, the hard shell 1 is further provided with a second sealing groove 13 on the inner wall of the upper part of the step structure 11, and the outer side surface of the sealing ring 31 is provided with a second protrusion 33 which is engaged with the second sealing groove 13; the cooperation between the second protrusion 33 and the second sealing groove 13 is the same as the cooperation between the first protrusion 32 and the first sealing groove 12 mentioned above, and the second protrusion 33 and the second sealing groove 13 form a second interception structure. It can be seen that when external dust invades the vibrator body 2, the second interception point and the first interception point can effectively intercept the dust; naturally, the second protrusion 33 and the second sealing groove 13 can also be filled with corresponding sealant to achieve an installation effect equivalent to the first protrusion 32 and the first sealing groove 12; during the installation process, sealant is first laid in the first sealing ring and the second sealing ring, and then the sealing ring 31 is tilted so that the second protrusion 33 faces the second sealing groove 13, and is pressed along the edge of the sealing ring so that the second protrusion 33 and the first protrusion 32 are correspondingly embedded in the second sealing groove 13 and the first sealing groove 12, and assembly can be achieved after the sealant solidifies.

[0024] In this embodiment, the vibrator body 2 is divided into a first part 21 and a second part 22, and the cross-sectional diameter of the first part 21 is larger than the cross-sectional diameter of the second part 22; the inner wall of the hard shell 1 is provided with an abutment ring 14 extending toward the inner cavity; the soft part 3 is provided with a wrapping portion 36 for completely wrapping the first part 21, and has an interference fit with the hard shell 1; the abutment ring 14 is used to abut the plane formed by the first part 21 and the wrapping portion 36; the abutment ring 14 can be used to place the vibrator body 2 wrapped by the soft part 3; the interference fit method can achieve reasonable and stable assembly of the vibrator body 2, the hard shell 1 and the soft part 3; the first part 21 of the vibrator body 2 is provided with a vibration membrane, and is wrapped and isolated by the wrapping portion 36 to prevent dust from invading the vibration membrane; the second opening is used to expose the wiring portion of the second part 22, thereby realizing wiring connection; in this embodiment, the aforementioned step structure 11 and the sealing ring 31 can be correspondingly arranged, thereby forming a better sealing effect on the first part 21.

[0025] In this embodiment, a gap is formed between the inner top surface of the soft part 3 and the vibration surface of the first part 21, and the inner top surface is provided with a conductive protrusion 34 extending to the vibration surface; the conductive protrusion 34 is used to transmit the vibration of the vibration membrane of the first part 21 to achieve a good sound transmission effect.

[0026] In this embodiment, a raised portion 35 is provided on the outer top surface of the soft part 3 ; it is not difficult to understand that the side wall of the raised portion 35 forms a good fulcrum position, which is convenient for the assembler to hold, so that the soft part 3 can better carry the vibrator body 2 to be installed in the hard shell 1 .

[0027] In this embodiment, the material of the hard shell 1 is metal or engineering plastic; the material of the soft part 3 is silicone, rubber or TPE; based on cost considerations, engineering plastics and TPE are preferably used; TP is the abbreviation of Thermoplastic Elastomers, which is a polymer material that has both the elasticity of rubber and the processing properties of plastic. TPE has the elasticity of rubber at room temperature, and can be melt-processed like plastic after heating, and has the advantages of elastic fit, weather resistance, easy processing and recyclability; engineering plastics are more flexible in production due to mature technology and a large number of models to choose from.

[0028] The advantages of the present invention are: 1. Filling the gap between the vibrator body and the hard shell with soft parts can effectively prevent dust and dirt from invading the vibrator body, thereby eliminating the interference of dust on the vibrator body, ensuring the sound transmission quality and obtaining a better service life; 2. The vibrator body is divided into two parts. The first part is provided with a vibration membrane, and is wrapped and isolated by the wrapped part to prevent dust from invading the vibration membrane; the second opening is used to expose the wiring part of the second part, thereby realizing wiring connection, thereby achieving no conflict in sealing and wiring.

[0029] The above disclosures are only several specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A bone conduction vibrator with a protective structure, characterized in that: include: A hard shell, wherein a cavity is provided in the hard shell, and a first opening and a second opening communicating with the cavity are formed at two ends; A vibrator body, the vibrator body is accommodated in the cavity, and the second opening is used to expose the power connection part of the vibrator body; A soft component covers the outer wall of the vibrator body to fill the gap between the vibrator body and the hard shell, and seals and covers the first opening.

2. The bone conduction vibrator with a protective structure according to claim 1, characterized in that: The inner wall of the first opening of the hard shell is provided with a step structure, and the soft component is provided with a sealing ring which is attached to the table surface of the step structure.

3. The bone conduction vibrator with a protective structure according to claim 2, characterized in that: The table top of the step structure is provided with a first sealing groove, and the fitting surface between the sealing ring and the step structure is provided with a first protrusion, and the first protrusion is embedded and connected in the first sealing groove.

4. The bone conduction vibrator with a protective structure according to claim 3, characterized in that: The space between the first sealing groove and the first protrusion is filled with sealant.

5. The bone conduction vibrator with a protective structure according to claim 2, characterized in that: The hard shell is also provided with a second sealing groove on the inner wall of the upper part of the step structure, and the outer side surface of the sealing ring is provided with a second protrusion which is embedded in the second sealing groove.

6. The bone conduction vibrator with a protective structure according to claim 1, characterized in that: The vibrator body is divided into a first part and a second part, the cross-sectional diameter of the first part is larger than the cross-sectional diameter of the second part; the inner wall of the hard shell is provided with an abutment ring extending toward the inner cavity; the soft part is provided with a wrapping part for completely wrapping the first part, and has an interference fit with the hard shell; the abutment ring is used to abut the plane formed by the first part and the wrapping part.

7. The bone conduction vibrator with a protective structure according to claim 6, characterized in that: A gap is formed between the inner top surface of the soft component and the vibration surface of the first part, and the inner top surface is provided with a conductive protrusion extending to the vibration surface.

8. The bone conduction vibrator with a protective structure according to claim 7, characterized in that: The outer top surface of the soft part is provided with a raised portion.

9. The bone conduction vibrator with a protective structure according to any one of claims 1 to 8, characterized in that: The material of the hard shell is metal or engineering plastic.

10. The bone conduction vibrator with a protective structure according to any one of claims 1 to 8, characterized in that: The material of the soft part is silicone, rubber or TPE.

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