CN216930310U

CN216930310U - Double-spring plate bone conduction loudspeaker

Info

Publication number: CN216930310U
Application number: CN202220634850.7U
Authority: CN
Inventors: 陈广标
Original assignee: Shenzhen Fu Tong Ying Technology Co ltd
Current assignee: Shenzhen Fu Tong Ying Technology Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-07-08
Anticipated expiration: 2032-03-22

Abstract

The utility model discloses a double-elastic-piece bone conduction loudspeaker which comprises a shell, a magnetic circuit mechanism and a vibration mechanism, wherein the magnetic circuit mechanism is arranged in the shell and can drive the vibration mechanism to vibrate, the vibration mechanism comprises a first elastic piece and a second elastic piece, the first elastic piece is fixedly matched with the shell, the second elastic piece is arranged on one side of the first elastic piece, the magnetic circuit mechanism is simultaneously connected with the first elastic piece and the second elastic piece, the magnetic circuit mechanism simultaneously drives the first elastic piece and the second elastic piece to vibrate, and the vibrations of the first elastic piece and the second elastic piece are mutually superposed, so that the low frequency can be increased, and the sound conduction effect can be improved.

Description

Double-elastic-sheet bone conduction loudspeaker

Technical Field

The utility model relates to the technical field of bone conduction loudspeakers, in particular to a double-elastic-sheet bone conduction loudspeaker.

Background

Bone conduction is a sound conduction mode, which converts sound into mechanical vibration with different frequencies, and transmits sound waves through the skull, the bone labyrinth, the lymph fluid of the inner ear, the spiral organ and the auditory center of a human body. For the classic sound conduction mode that produces the sound wave through the vibrating diaphragm, many sound wave transmission's step has been saved in bone conduction, can realize clear sound restoration in noisy environment, and the sound wave can not influence other people because of diffusion in the air yet moreover, and bone conduction loudspeaker are a sound production terminal that utilizes bone conduction technology to vibrate. Bone conduction loudspeaker mainly produce the vibration through the shell fragment and conduct sound, and current bone conduction loudspeaker generally only has a shell fragment, when the low frequency that produces during the vibration is lower, can influence the conduction to sound.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses a double-elastic-sheet bone conduction loudspeaker, which can increase low frequency and improve the conduction effect on sound.

The utility model discloses a double-elastic-piece bone conduction loudspeaker which comprises a shell, a magnetic circuit mechanism and a vibration mechanism, wherein the magnetic circuit mechanism is arranged in the shell and can drive the vibration mechanism to vibrate, the vibration mechanism comprises a first elastic piece and a second elastic piece, the first elastic piece is fixedly matched with the shell, the second elastic piece is arranged on one side of the first elastic piece, and the magnetic circuit mechanism is simultaneously connected with the first elastic piece and the second elastic piece.

Furthermore, the shell comprises a mounting groove with an upward opening, the first elastic sheet is fixed at the opening of the mounting groove, and the second elastic sheet is located on one side, away from the mounting groove, of the first elastic sheet.

Further, the magnetic circuit mechanism comprises a magnet, a voice coil and a fixing frame, the magnet is fixedly connected with the bottom surface of the mounting groove, the voice coil is fixed through the fixing frame, the voice coil is sleeved on the outer side of the magnet, and the fixing frame is connected with the first elastic sheet and the second elastic sheet.

Furthermore, the two ends of the first elastic sheet are fixedly matched with the shell through fastening sheets, a first connecting groove is formed in the first elastic sheet, a second connecting groove is formed in the second elastic sheet, a connecting bulge is arranged on the fixing frame, and the connecting bulge is connected with the first connecting groove and the second connecting groove.

Furthermore, the first elastic sheet comprises a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are respectively connected with the shell through the fastening piece, and the first connecting groove is located between the first connecting portion and the second connecting portion.

Furthermore, the second elastic sheet comprises a third connecting portion and a fourth connecting portion, and the second connecting groove is located between the third connecting portion and the fourth connecting portion.

Furthermore, a gasket is arranged between the first elastic sheet and the second elastic sheet, two ends of the gasket respectively support against the first elastic sheet and the second elastic sheet, and the gasket is sleeved outside the connecting protrusion.

Compared with the prior art, the technical scheme disclosed by the utility model has the beneficial effects that:

the magnetic circuit mechanism simultaneously drives the first elastic sheet and the second elastic sheet to vibrate, the vibrations of the first elastic sheet and the second elastic sheet are mutually superposed, the mode that the two elastic sheets vibrate simultaneously is adopted, the low frequency can be increased, and the conduction effect on sound is improved.

Drawings

FIG. 1 is a schematic view of a dual-leaf bone conduction horn;

FIG. 2 is a schematic view of a housing;

FIG. 3 is a schematic view of a fixing frame;

FIG. 4 is a schematic view of a first resilient piece;

FIG. 5 is a schematic view of a second resilient piece;

FIG. 6 is a schematic view of a fastening tab;

description of the figures

100. A double-leaf bone conduction horn; 10. a housing; 11. mounting grooves; 12. positioning a groove; 13. avoiding holes; 14. a fastening tab; 141. a first fastening end; 142. a second fastening end; 20. a magnetic circuit mechanism; 21. a magnet; 22. a voice coil; 23. a fixed mount; 231. a fixed part; 232. a connecting projection; 24. a washer slice; 30. a vibration mechanism; 31. a first spring plate; 311. a first connection portion; 312. a second connecting portion; 313. a first connecting groove; 314. a first notch groove; 32. a second elastic sheet; 321. a third connecting portion; 322. a fourth connecting portion; 323. a second connecting groove; 324. a second notch groove; 33. and (6) a gasket.

Detailed Description

When one component is considered to be "connected" to another component, it can be directly connected to the other component, or intervening components may be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

It should be noted that 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, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, 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.

As shown in fig. 1, the present invention discloses a dual-elastic-piece bone conduction speaker 100, which includes a housing 10, a magnetic circuit mechanism 20 and a vibration mechanism 30, wherein the magnetic circuit mechanism 20 is fixedly connected to the housing 10, and the magnetic circuit mechanism 20 can drive the vibration mechanism 30 to vibrate, so as to transmit a sound signal in a vibration manner.

The housing 10 includes a mounting groove 11 opened upward, and the magnetic circuit mechanism 20 is disposed in the mounting groove 11. In the present application, the housing 10 is U-shaped iron.

Further, the magnetic circuit mechanism 20 includes a magnet 21, a voice coil 22 and a fixing frame 23, the magnet 21 is fixedly connected to the bottom surface of the mounting groove 11, the voice coil 22 is sleeved on the outer side of the magnet 21, the voice coil 22 is connected to the fixing frame 23, and the fixing frame 23 is connected to the vibration mechanism 30. When the sound signal is transmitted to the voice coil 22 in the form of an electrical signal, the magnetic field generated after the voice coil 22 is energized and the magnetic field of the magnet 21 itself act to vibrate the fixing frame 23, and the vibration is transmitted to the vibration mechanism 30 through the fixing frame 23, so that the sound signal is transmitted in a vibration manner.

As shown in fig. 2, a positioning groove 12 is provided on a bottom surface of the mounting groove 11 to cooperate with the magnet 21, and the mounting groove 11 positions the magnet 21 through the positioning groove 12.

Further, a washer sheet 24 is arranged on the magnet 21.

Further, the voice coil 22 is disposed outside the magnet 21, the fixing frame 23 is disposed above the voice coil 22, and the vibration mechanism 30 is disposed above the fixing frame 23.

Further, the vibration mechanism 30 includes a first elastic sheet 31 and a second elastic sheet 32, the fixing frame 23 is connected to the first elastic sheet 31 and the second elastic sheet 32 at the same time, and the fixing frame 23 can drive the first elastic sheet 31 and the second elastic sheet 32 to vibrate.

As shown in fig. 1 and fig. 3, specifically, the first elastic sheet 31 is disposed at an opening of the mounting groove 11, the first elastic sheet 31 is fixedly connected to the housing 10, the fixing frame 23 is provided with a fixing portion 231, and the fixing portion 231 is attached to a bottom end of the first elastic sheet 31 to fix the fixing frame 23, so as to mount the voice coil 22. In this application, the fixing portion 231 may be connected to the first elastic sheet 31 by adhesion.

The second elastic sheet 32 is located on one side of the first elastic sheet 31, the second elastic sheet 32 is located on one side of the first elastic sheet 31 far away from the mounting groove 11, and the second elastic sheet 32 can be attached and fixed to a shell of corresponding equipment.

As shown in fig. 3 to 5, specifically, a first connecting groove 313 is disposed on the first elastic sheet 31, a second connecting groove 323 is disposed on the second elastic sheet 32, a connecting protrusion 232 is disposed on the fixing frame 23, the connecting protrusion 232 can simultaneously pass through the first connecting groove 313 and the second connecting groove 323, and the first connecting groove 313 and the second connecting groove 323 are respectively connected with the first elastic sheet 31 and the second elastic sheet 32, so as to drive the first elastic sheet 31 and the second elastic sheet 32 to vibrate.

Further, the first elastic piece 31 includes a first connection portion 311 and a second connection portion 312, the first connection portion 311 and the second connection portion 312 are respectively located at two ends of the first elastic piece 31, the first connection portion 311 and the second connection portion 312 are respectively connected to the housing 10 through the fastening piece 14, and the first connection groove 313 is located between the first connection portion 311 and the second connection portion 312. In this application, the first connecting groove 313 is located in the middle of the first elastic sheet 31, so that the fixing frame 23 can drive the first elastic sheet 31 to vibrate uniformly as a whole.

Further, the first connection portion 311 and the second connection portion 312 are both provided with a first notch groove 314, so that the first connection portion 311 and the second connection portion 312 are more easily vibrated.

The shell 10 is provided with a position avoiding hole 13 matched with the first elastic sheet 31, so that the first elastic sheet 31 can vibrate conveniently. Specifically, the first connecting portion 311 and the second connecting portion 312 of the first resilient tab 31 are respectively connected to the housing 10 through the fastening tab 14, and the housing 10 is provided with the avoiding hole 13 and the first resilient tab 31 is provided with the first notch groove 314, so that the first resilient tab 314 vibrates.

As shown in fig. 6, the fastening tab 14 further includes a first fastening end 141 and a second fastening end 142, the first elastic sheet 31 is disposed on the top surface of the housing 10, the first fastening end 141 presses the first elastic sheet 31 on the housing 10, so that two ends of the first elastic sheet 31 are attached to the housing 10, and the second fastening end 142 is fixedly connected to the housing 10, so as to fix the first elastic sheet 31 on the housing 10.

The second elastic piece 32 includes a third connecting portion 321 and a fourth connecting portion 322, and the second connecting groove 323 is located between the third connecting portion 321 and the fourth connecting portion 322. In this application, the second connecting groove 323 is located in the middle of the second elastic sheet 32, so that the fixing frame 23 can drive the second elastic sheet 32 to vibrate uniformly. The third connecting portion 321 and the fourth connecting portion 322 are provided with symmetrical second notch grooves 324, so that the second elastic sheet 32 can more easily generate vibration.

Referring back to fig. 1, a gasket 33 is disposed between the first elastic sheet 31 and the second elastic sheet 32, two ends of the gasket 33 respectively support the first elastic sheet 31 and the second elastic sheet 32, and the gasket 33 is sleeved on the outer side of the connecting protrusion 232.

The working principle is as follows:

the sound signal is transmitted to the voice coil 22 in the form of an electric signal, the magnetic field generated after the voice coil 22 is powered on interacts with the magnetic field of the magnet 21 to generate vibration, the vibration is transmitted to the first elastic sheet 31 and the second elastic sheet 32 through the fixing frame 23, and the vibration of the first elastic sheet 31 and the vibration of the second elastic sheet 32 are superposed with each other, so that the low-frequency vibration can be improved, and the conduction effect can be improved.

The present invention may be embodied in various forms and modifications without departing from the spirit and scope of the utility model, and the embodiments described above are intended to illustrate the utility model, but do not limit the scope of the utility model.

Claims

1. The utility model provides a two shell fragment osteoacusis loudspeaker, includes shell, magnetic circuit mechanism and vibration mechanism, magnetic circuit mechanism sets up and can drive in the shell vibration mechanism vibrates, its characterized in that, vibration mechanism includes first shell fragment and second shell fragment, first shell fragment with shell fixed fit, the second shell fragment sets up one side of first shell fragment, magnetic circuit mechanism connects simultaneously first shell fragment and second shell fragment.

2. The dual-spring bone conduction speaker as claimed in claim 1, wherein the housing includes a mounting groove with an upward opening, the first spring is fixed at the opening of the mounting groove, and the second spring is located at a side of the first spring away from the mounting groove.

3. The dual-elastic-piece bone conduction speaker as claimed in claim 2, wherein the magnetic circuit mechanism comprises a magnet, a voice coil and a fixing frame, the magnet is fixedly connected to the bottom surface of the mounting groove, the voice coil is fixed by the fixing frame, the voice coil is sleeved on the outer side of the magnet, and the fixing frame is connected to the first elastic piece and the second elastic piece.

4. The dual-elastic-piece bone conduction speaker according to claim 3, wherein two ends of the first elastic piece are fixedly engaged with the housing through fastening pieces, the first elastic piece is provided with a first connecting groove, the second elastic piece is provided with a second connecting groove, the fixing frame is provided with a connecting protrusion, and the connecting protrusion connects the first connecting groove and the second connecting groove.

5. The dual-spring-plate bone conduction horn of claim 4, wherein the first spring plate comprises a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are respectively connected to the housing through the fastening plate, and the first connecting slot is located between the first connecting portion and the second connecting portion.

6. The dual spring plate bone conduction horn of claim 4, wherein the second spring plate includes a third connecting portion and a fourth connecting portion, and the second connecting slot is located between the third connecting portion and the fourth connecting portion.

7. The dual-spring bone conduction speaker of claim 4, wherein a gasket is disposed between the first spring plate and the second spring plate, two ends of the gasket respectively abut against the first spring plate and the second spring plate, and the gasket is sleeved outside the connecting protrusion.