Moving-coil bone conduction vibrator with silica gel sleeve

Abstract

The utility model discloses a moving coil type bone conduction vibrator with a silica gel sleeve, which is applied to bone conduction equipment and comprises a main shell and a coil iron vibrator, the main shell is hollow, two openings are formed at two ends of the main shell, and the coil iron vibrator is accommodated in the main shell; the silicon rubber sleeve part partially wraps the coil iron vibrator so as to fill the space between the main shell and the coil iron vibrator; one end of the silica gel sleeve seals one opening to form a listening surface, and the other end of the silica gel sleeve and the other opening jointly expose the driving part of the coil iron vibrator; the gap between the coil iron vibrator and the main shell is filled with the silica gel sleeve, so that dust and dirt can be effectively prevented from invading the coil iron vibrator, the interference of the dust on the coil iron vibrator is further avoided, the sound transmission quality is ensured, and the better service life is obtained.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vibrator structure especially relates to a moving coil type bone conduction vibrator with silica gel kit. BACKGROUND

[0002] People can hear sound because air transmits vibration to eardrum through external ear canal, and the vibration formed by eardrum drives people's auditory nerve, thereby perceiving the vibration of sound. Bone conduction technology can transmit to people's auditory nerve through people's skin, subcutaneous tissue and bone, thereby enabling people to hear sound.

[0003] Bone conduction technology is generally realized through bone conduction vibrator. In the prior art, the bone conduction vibrator generally comprises a shell and a coil iron vibrator. The shell is a hard shell, and the coil iron vibrator is wrapped to realize the protection of the coil iron vibrator. However, in actual use, it is found that the above design has the following problems: the hard shell is not sealed enough to the coil iron vibrator, and dust or dirt is easily accumulated, which greatly affects the transmission effect of the coil iron vibrator. Therefore, there is an urgent need for a bone conduction vibrator structure with a more reasonable structure to solve the above technical problems in the prior art. SUMMARY

[0004] In view of the technical problem in the prior art that the cooperation between the shell and the coil iron vibrator of the bone conduction vibrator is relatively single, and the poor sealing performance leads to poor transmission effect, the utility model provides a solution.

[0005] To achieve the above purpose, the utility model provides a moving coil type bone conduction vibrator with silica gel kit, which is applied to bone conduction equipment, and characterized in that it comprises a main shell and a coil iron vibrator. The main shell is hollow and has two openings at both ends. The coil iron vibrator is received in the main shell. The silica gel kit is further included. The silica gel sleeve partially wraps the coil iron vibrator to fill the gap between the main shell and the coil iron vibrator. One end of the silica gel sleeve seals the opening to form an acoustic surface, and the other end exposes the driving part of the coil iron vibrator together with the other opening.

[0006] As an improved scheme of the utility model, the inner wall of the opening at the same end of the acoustic surface is provided with a first step, and the silica gel kit is provided with a sealing ring fitted on the first step.

[0007] As an improved scheme of the utility model, the inner wall of the first opening of the main shell is provided with a first step, and the silica gel kit is provided with a sealing ring fitted on the first step.

[0008] As an improved scheme of the utility model, the mesa of the first step is equipped with a first sealing groove, the abutting surface of the sealing ring and the first step is equipped with a first convex ring, and the first convex ring is embedded and connected in the first sealing groove.

[0009] As an improved scheme of the utility model, the first sealing groove and the first convex ring are filled with sealing glue.

[0010] As an improved scheme of the utility model, the main shell is further equipped with a second sealing groove on the inner wall of the upper part of the first step, and the outer side surface of the sealing ring is equipped with a second convex ring embedded with the second sealing groove.

[0011] As an improved scheme of the utility model, the ring iron vibrator is divided into a first part and a second part, the cross-sectional diameter of the first part is larger than that of the second part, the inner wall of the main shell is equipped with a second step extending towards the inner cavity, the silica gel sleeve is equipped with a wrapping part for completely wrapping the first part and is in interference fit with the main shell, and the second step is used for abutting against the plane formed by the first part and the wrapping part.

[0012] As an improved scheme of the utility model, a gap is formed between the inner top surface of the silica gel sleeve and the vibration surface of the first part, and the inner top surface is equipped with a conduction protrusion extending to the vibration surface.

[0013] As an improved scheme of the utility model, the outer top surface of the silica gel sleeve is equipped with a raised part.

[0014] As an improved scheme of the utility model, the material of the main shell is metal or engineering plastic.

[0015] As an improved scheme of the utility model, the material of the silica gel sleeve is silica gel, rubber or TPE.

[0016] The utility model discloses a dynamic coil type bone conduction vibrator with silica gel sleeve, which is applied to bone conduction equipment and comprises a main shell and a ring iron vibrator. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view of the utility model;

[0018] Figure 2 is an exploded view of the utility model;

[0019] Figure 3 is a sectional view of the utility model;

[0020] Figure 4 is a perspective view of the utility model Figure 4 is a partial enlarged view of A area of the utility model;

[0021] Figure 5 is a perspective view of the silica gel kit of the utility model;

[0022] Figure 6 is another perspective view of the silica gel kit of the utility model;

[0023] Figure 7 is a perspective view of the utility model Figure 6 is a partial enlarged view of B area of the utility model;

[0024] Figure 8 is a perspective view of the ring iron vibrator of the utility model.

[0025] The main element symbol explanations are as follows:

[0026] 1, main shell; 11, first step; 12, first sealing groove; 13, second sealing groove;

[0027] 14, second step;

[0028] 2, ring iron vibrator; 21, first part; 22, second part;

[0029] 3, silica gel kit; 31, sealing ring; 32, first convex ring; 33, second convex ring; 34, conducting protrusion;

[0030] 35, raised portion; 36, wrapping portion. DETAILED DESCRIPTION

[0031] In order to more clearly express the utility model, the utility model is further described below in conjunction with the drawings.

[0032] In the following description, the example details are given so as to provide a more in-depth understanding of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. It should be understood that the specific embodiments are only used to explain the utility model, and are not used to limit the utility model.

[0033] It should be understood that when the terms "include" and / or "comprising" are used in the specification, they are meant to encompass the presence of the stated features, integers, steps, operations, elements, or components but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

[0034] In the prior art, the bone conduction vibrator generally includes a shell and a coil iron vibrator. The shell is a hard shell and closely wraps the coil iron vibrator to protect the coil iron vibrator. However, in actual use, it is found that the above design has the following problems: the hard shell is not tightly sealed to the coil iron vibrator, and dust or dirt is easily accumulated, which greatly affects the transmission effect of the coil iron vibrator.

[0035] Therefore, in view of the technical problem in the prior art that the cooperation between the shell and the coil iron vibrator of the bone conduction vibrator is relatively simple, and the poor sealing performance leads to poor transmission effect, the present application provides a moving coil type bone conduction vibrator with a silica gel kit, which is applied to a bone conduction device such as a bone conduction hearing aid, a bone conduction earphone, etc. Please refer to the accompanying drawings Figure 1 to the accompanying drawings Figure 8 , which comprises a main shell 1 and a coil iron vibrator 2. The main shell 1 is hollow and has two openings at its two ends. The coil iron vibrator 2 is received in the main shell 1. The silica gel kit 3 is further provided, which partially wraps the coil iron vibrator to fill the gap between the main shell and the coil iron vibrator. One end of the silica gel kit is sealed to one opening to form a sound receiving surface, and the other end is exposed together with the other opening to the driving part of the coil iron vibrator.

[0036] In this embodiment, the scheme and effect of the present application are described in combination with the installation process: first, the coil iron vibrator 2 is wrapped by the silica gel kit 3, and then the coil iron vibrator 2 in the wrapped state is installed into the main shell 1. The silica gel kit 3 has elasticity, and thus the gap between the hard part and the coil iron vibrator 2 is effectively filled, so that the coil iron vibrator 2 and the hard part are isolated from each other, avoiding the generation of the gap and effectively preventing dust and dirt from invading the coil iron vibrator 2.

[0037] As can be seen, by filling the gap between the coil iron vibrator 2 and the main shell 1 with the silica gel kit 3, dust and dirt can be effectively prevented from invading the coil iron vibrator 2, thus eliminating the interference of dust on the coil iron vibrator 2 and ensuring the transmission quality of sound and better service life.

[0038] For the installation of the main shell 1 and the silica gel kit 3, in this embodiment, one of the opening inner walls of the main shell 1 is provided with a first step 11, and the silica gel kit 3 is provided with a sealing ring 31 fitted on the surface of the first step 11; in the first aspect, the sealing ring 31 is fitted with the first step 11, further increasing the sealing performance; on the other hand, due to the fitting of the sealing ring 31 and the first step 11, the silica gel kit 3 can be limited and fixed in the expected position during the installation process of the main shell 1, ensuring the accuracy of the installation position;

[0039] In a further scheme, in order to make the sealing between the sealing ring 31 and the first step 11 better, in this embodiment, the surface of the first step 11 is provided with a first sealing groove 12, and the fitting surface of the sealing ring 31 and the first step 11 is provided with a first convex ring 32, which is embedded and connected in the first sealing groove 12; it is not difficult to understand that even if there is a small gap between the outer wall of the sealing ring 31 and the opening inner wall of the end due to mechanical errors, the first interception structure can be formed by the cooperation of the first convex ring 32 and the first sealing groove 12, which can stop and block dust and prevent dust from further invading the bone conduction vibrator; in a further scheme, the first sealing groove 12 and the first convex ring 32 are filled with sealing glue; the sealing glue is in a liquid state when it is not solidified, and the first convex ring 32 and the first sealing groove 12 extrude the sealing glue during installation, and the adhesive force formed after solidification avoids the generation of gaps and realizes the installation of the first convex ring 32 and the first sealing groove 12.

[0040] In a further scheme, the main shell 1 is further provided with a second sealing groove 13 on the inner wall above the first step 11, and the outer side surface of the sealing ring 31 is provided with a second convex ring 33 embedded with the second sealing groove 13; the cooperation of the second convex ring 33 and the second sealing groove 13 is the same as the cooperation of the first convex ring 32 and the first sealing groove 12, and the second convex ring 33 and the second sealing groove 13 form a second interception structure, so that the second interception point and the first interception point can effectively intercept dust during the invasion of external dust into the coil iron vibrator 2; naturally, the second convex ring 33 and the second sealing groove 13 can also be filled with corresponding sealing glue to realize the same installation effect as the first convex ring 32 and the first sealing groove 12; during installation, the sealing glue is laid in the first sealing ring and the second sealing ring, then the sealing ring 31 is inclined, the second convex ring 33 is against the second sealing groove 13, and the second convex ring 33 and the first convex ring 32 are correspondingly embedded into the second sealing groove 13 and the first sealing groove 12, and the assembly can be realized after the sealing glue is solidified.

[0041] In the embodiment, the coil iron vibrator 2 is divided into a first part 21 and a second part 22, the cross-sectional diameter of the first part 21 is larger than that of the second part 22; the inner wall of the main shell 1 is provided with a second step 14 extending towards the inner cavity; the silica gel sleeve 3 is provided with a wrapping part 36 for completely wrapping the first part 21, and is in interference fit with the main shell 1; the second step 14 is used to abut against the plane formed by the first part 21 and the wrapping part 36; the second step 14 can be used to place the coil iron vibrator 2 wrapped by the silica gel sleeve 3; in the interference fit mode, the reasonable and stable assembly of the coil iron vibrator 2, the main shell 1 and the silica gel sleeve 3 can be realized; the first part 21 of the coil iron vibrator 2 is provided with a vibration film and is wrapped and isolated by the wrapping part 36 to prevent dust from entering the vibration film; the opening of the end is used to expose the wiring part of the second part 22, thereby realizing wiring connection; in the embodiment, the first step 11 and the sealing ring 31 can be correspondingly arranged, thereby forming a better sealing effect on the first part 21.

[0042] In the embodiment, a gap is formed between the inner top surface of the silica gel sleeve 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 film of the first part 21, thereby realizing a good sound transmission effect.

[0043] In the embodiment, the outer top surface of the silica gel sleeve 3 is provided with a raised part 35; it is not difficult to understand that the side wall of the raised part 35 forms a good force position, which is convenient for assembly personnel to hold, so that the silica gel sleeve 3 can better carry the coil iron vibrator 2 to be installed into the main shell 1.

[0044] The advantages of the utility model lie in:

[0045] 1. The gap between the coil iron vibrator and the main shell is filled by the silica gel sleeve, which can effectively prevent dust and dirt from entering the coil iron vibrator, thereby avoiding the interference of dust on the coil iron vibrator and ensuring the transmission quality of sound and obtaining a better service life.

[0046] 2. The coil iron vibrator is divided into two parts, the first part is provided with a vibration film and is wrapped and isolated by the wrapping part to prevent dust from entering the vibration film; the second opening is used to expose the wiring part of the second part, thereby realizing wiring connection; the sealing and wiring are not in conflict.

[0047] The above disclosure is only several specific embodiments of the utility model, but the utility model is not limited to this, any change that can be thought of by any person skilled in the art should fall within the protection scope of the utility model.

Claims

1. A moving-coil bone conduction vibrator with a silica gel kit, applied to a bone conduction device, characterized in that, The application relates to a speaker, which comprises a main shell, a coil iron vibrator, a silica gel kit, and a driving part of the coil iron vibrator.

2. The moving-coil bone conduction vibrator with a silica gel kit according to claim 1, characterized in that, The inner wall of the opening at the same end of the listening surface is provided with a first step, and the silica gel kit is provided with a sealing ring which is attached to the surface of the first step.

3. The moving-coil bone conduction vibrator with a silica gel kit according to claim 2, characterized in that, The surface of the first step is provided with a first sealing groove, and the attaching surface of the sealing ring is provided with a first convex ring which is embedded in the first sealing groove.

4. The moving-coil bone conduction vibrator with a silica gel kit according to claim 3, characterized in that, The first sealing groove and the first convex ring are filled with sealing glue.

5. The moving-coil bone conduction vibrator with a silica gel kit according to claim 2, characterized in that, The main shell is further provided with a second sealing groove on the inner wall of the upper part of the first step, and the outer surface of the sealing ring is provided with a second convex ring which is embedded in the second sealing groove.

6. The moving-coil bone conduction vibrator with a silica gel kit according to claim 1, characterized in that, The coil iron vibrator is divided into a first part and a second part, the cross-sectional diameter of the first part is larger than that of the second part, the inner wall of the main shell is provided with a second step which extends towards the inner cavity, the silica gel kit is provided with a wrapping part which is used for completely wrapping the first part and is in interference fit with the main shell, and the second step is used for abutting against the plane formed by the first part and the wrapping part.

7. The moving-coil bone conduction vibrator with a silica gel kit according to claim 6, characterized in that, The inner top surface of the silica gel kit and the vibration surface of the first part form a gap, and the inner top surface is provided with a conducting convex which extends to the vibration surface.

8. The moving-coil bone conduction vibrator with a silica gel kit according to claim 7, characterized in that, The outer top surface of the silica gel kit is provided with a raised part.

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