CN216357214U

CN216357214U - Bone conduction vibrator structure

Info

Publication number: CN216357214U
Application number: CN202122455423.0U
Authority: CN
Inventors: 倪柳彬
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-04-19
Anticipated expiration: 2031-10-12

Abstract

The utility model discloses a bone conduction vibrator structure which comprises an earphone shell, a PCB (printed circuit board), a patch part and a vibrator driving head. The earphone shell is of a cylindrical structure, one end of the earphone shell is open, the middle part of the bottom surface of the other end of the earphone shell is provided with a round hole, and one surface of the bottom surface, far away from the open end, is provided with a ring groove; the PCB is embedded in the ring groove, and a bulge for conducting sound is arranged on the outward surface of the PCB; the head attaching part is covered and connected with the non-opening end of the earphone shell, and the inner surface of the head attaching part is connected with the bulge in a butting way; the oscillator driving head is arranged in the earphone shell, one end of the oscillator driving head is fixedly inserted into the round hole to form hard contact, and the oscillator driving head is connected to the PCB through a wire. The bone conduction vibrator is small in structure and easy to carry. According to the utility model, the PCB is skillfully arranged in the annular groove, and the vibrator driving head is suspended in the inner cavity of the earphone shell, so that noise is reduced, and the wearing comfort is improved.

Description

Bone conduction vibrator structure

Technical Field

The utility model relates to an earphone, in particular to a bone conduction vibrator structure.

Background

Bone conduction is a sound conduction mode, that is, sound is converted into mechanical vibration with different frequencies, and sound waves are transmitted through the skull, the bone labyrinth, the lymph fluid of the inner ear, the spiral organ, the auditory nerve and the auditory center of a human body. Compared with a classical sound conduction mode of generating sound waves through a vibrating diaphragm, the bone conduction mode omits a plurality of sound wave transmission steps, can realize clear sound restoration in a noisy environment, and does not influence other people due to the fact that the sound waves are diffused in the air.

When the bone conduction earphone formed by the bone conduction vibrator structure is worn and used, the ears are opened, the ears are not blocked, and the problem of discomfort in wearing the in-ear earphone is solved. Meanwhile, a series of sanitary and health problems caused by sweating in the ear when the earphone is worn are avoided. Therefore, the bone conduction headset is very suitable for sports use. The open double ears also ensure the possibility of using the earphone in dangerous scenes. The ears are opened, the change of the surrounding environment can be noticed when the earphone is used, and the use is safer.

However, the existing bone conduction earphone drives the elastic sheet to vibrate by the displacement of the coil, and has the following defects:

1. the internal structure causes noise phenomenon;

2. low frequency sound effect is poor;

3. the external vibration sense is too large, which affects the wearing comfort.

Disclosure of Invention

Aiming at the defects in the prior art, the technical problem to be solved by the utility model is to provide a bone conduction vibrator structure, and the bone conduction vibrator structure is designed to miniaturize a bone conduction earphone, reduce noise and improve wearing comfort.

In order to solve the technical problem, the utility model is realized by the following scheme: the utility model relates to a bone conduction vibrator structure, comprising:

the earphone shell is of a cylindrical structure, one end of the earphone shell is open, the middle part of the bottom surface of the other end of the earphone shell is provided with a round hole, and one surface of the bottom surface, far away from the open end, is provided with an annular groove;

the PCB board is embedded in the annular groove, and the outward surface of the PCB board is provided with a bulge for conducting sound;

the patch part is covered at the non-opening end of the earphone shell, and the inner surface of the patch part is connected with the bulge in a butting way;

the oscillator driving head is arranged in the earphone shell, one end of the oscillator driving head is fixedly inserted into the round hole to form hard contact, and the oscillator driving head is connected to the PCB through a wire.

Further, the ring groove and the round hole are concentric.

Furthermore, the bulges are distributed on the PCB in a ring array.

Furthermore, the face-attaching part surrounds the annular groove and the PCB, and a gap is formed between the inner bottom surface of the face-attaching part and the earphone shell.

Furthermore, the face pasting part is one of a silica gel body and a plastic rubber body.

Furthermore, the vibrator driving head is provided with a vibrator main body, a sound guide disc arranged on one surface of the vibrator main body and a connecting block which is arranged on the outer end surface of the sound guide disc and fixedly inserted in the round hole.

Furthermore, the sound guide plate is connected with the inner bottom surface of the earphone shell in an abutting mode.

Furthermore, a first annular cavity is formed between the oscillator main body and the inner bottom surface of the earphone shell.

Further, a second annular cavity is formed by the oscillator main body and the inner side wall surface of the earphone shell.

Compared with the prior art, the utility model has the beneficial effects that: the bone conduction vibrator is small in structure and easy to carry. According to the utility model, the PCB is skillfully arranged in the annular groove, and the vibrator driving head is suspended in the inner cavity of the earphone shell, so that noise is reduced, and the wearing comfort is improved.

Drawings

Fig. 1 is an exploded view of a bone conduction transducer structure according to the present invention.

Fig. 2 is an assembly diagram of the bone conduction transducer structure of the present invention.

Fig. 3 is an enlarged view of the structure of the vibrator driving head according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and thus the protection scope of the present invention is more clearly and clearly defined. It should be apparent that the described embodiments of the present invention are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1: the concrete structure of the utility model is as follows:

referring to fig. 1-3, a bone conduction vibrator structure of the present invention includes:

the earphone shell 2 is of a cylindrical structure, one end of the earphone shell is open, the middle of the bottom surface of the other end of the earphone shell is provided with a round hole 21, a ring groove 22 is arranged on one surface of the bottom surface, which is far away from the open end, the round hole 21 is surrounded by the ring groove 22, and the ring groove 22 and the round hole 21 are concentric;

the PCB 3 is embedded in the annular groove, a bulge 31 for conducting sound is arranged on the outward surface of the PCB, and the bulge 31 can be replaced by a matrix bump or the bulge 31 can be replaced by bumps distributed in an annular array;

the patch part 1 is covered and connected with the non-opening end of the earphone shell 2, and the inner surface of the patch part is connected with the bulge 31 in an interference manner;

the oscillator driving head 5 is arranged in the earphone shell 2, one end of the oscillator driving head is fixedly inserted into the round hole 21 to form hard contact, the oscillator driving head 5 is connected to the PCB 3 through a wire 4, and sound can be better transmitted through the hard contact.

A preferred technical solution of this embodiment: the bulges 31 are distributed on the PCB 3 in a ring array.

A preferred technical solution of this embodiment: the annular groove 22 and the PCB 3 are surrounded by the patch part 1, and a gap is formed between the inner bottom surface of the patch part and the earphone shell 2, so that sound leakage is prevented.

A preferred technical solution of this embodiment: the face pasting part 1 is one of a silica gel body and a plastic body, the silica gel body is preferably selected, the silica gel body does not hurt the skin, particularly skin-friendly silica gel, and the using effect is better.

A preferred technical solution of this embodiment: the vibrator driving head 5 includes a vibrator main body 51, a sound guide plate 52 attached to one surface of the vibrator main body 51, and a connecting block 53 provided on an outer end surface of the sound guide plate 52 and inserted and fixed in the circular hole 21. The connection block 53 and the PCB board 3 form a hard contact which enables better sound transmission.

A preferred technical solution of this embodiment: the sound guiding disc 52 is connected with the inner bottom surface of the earphone shell 2 in an interference manner.

A preferred technical solution of this embodiment: a first annular cavity is formed between the vibrator main body 51 and the inner bottom surface of the earphone shell 2. A second annular cavity is formed by the vibrator body 51 and the inner side wall surface of the earphone shell 2. The vibrator main body 51 forms a suspension structure, which can effectively reduce noise.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A bone conduction vibrator structure, comprising:

the earphone shell (2) is of a cylindrical structure, one end of the earphone shell is open, the middle part of the bottom surface of the other end of the earphone shell is provided with a round hole (21), and one surface of the bottom surface, far away from the open end, is provided with a ring groove (22);

the PCB (3) is embedded in the annular groove, and a bulge (31) for conducting sound is arranged on the outward surface of the PCB;

the patch part (1) is covered and connected with the non-opening end of the earphone shell (2), and the inner surface of the patch part is in interference connection with the bulge (31);

the vibrator driving head (5) is arranged in the earphone shell (2) and one end of the vibrator driving head is fixedly inserted into the round hole (21) to form hard contact, and the vibrator driving head (5) is connected to the PCB (3) through a wire (4).

2. A bone conduction vibrator structure according to claim 1, characterized in that the ring groove (22) and the circular hole (21) are concentric.

3. A bone conduction vibrator structure according to claim 1, characterized in that the bulges (31) are distributed on the PCB board (3) in a ring array.

4. The bone conduction oscillator structure of claim 1, wherein the attaching part (1) surrounds the ring groove (22) and the PCB (3) and a gap is formed between the inner bottom surface of the attaching part and the earphone shell (2).

5. The bone conduction oscillator structure of claim 1 or 4, wherein the facing part (1) is one of a silicon body and a plastic body.

6. The bone conduction vibrator structure of claim 1, wherein the vibrator driving head (5) comprises a vibrator body (51), a sound guiding plate (52) mounted on one surface of the vibrator body (51), and a connecting block (53) arranged on the outer end surface of the sound guiding plate (52) and inserted and fixed in the circular hole (21).

7. The bone conduction vibrator structure of claim 6, wherein the sound guiding plate (52) is in interference connection with the inner bottom surface of the earphone shell (2).

8. The bone conduction vibrator structure of claim 6, wherein a first annular cavity is formed between the vibrator body (51) and the inner bottom surface of the earphone shell (2).

9. The bone conduction vibrator structure of claim 6, wherein the vibrator body (51) and the inner side wall surface of the earphone shell (2) form a second annular cavity.