CN216057488U

CN216057488U - Bone conduction loudspeaker

Info

Publication number: CN216057488U
Application number: CN202122777847.9U
Authority: CN
Inventors: 杨思伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-03-15
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a bone conduction loudspeaker which comprises a support, a central shaft, a vibration elastic sheet, a coil, a washer, a magnet and a U-shaped cup, wherein a first through hole is formed in the middle of the support, the vibration elastic sheet is fixed at the first through hole, the central shaft vertically penetrates through the vibration elastic sheet and is fixed on the vibration elastic sheet, a blocking platform is arranged on the lower section of the central shaft, the coil is fixed at the bottom of the support and is sleeved outside the central shaft, the U-shaped cup is installed at the bottom end of the central shaft, the magnet is slidably sleeved on the central shaft and is positioned at the top of the U-shaped cup, the magnet is positioned below the coil, the washer is sleeved on the central shaft, the top of the washer is pressed below the blocking platform, and the bottom of the washer is pressed on the magnet. According to the utility model, the vibrating elastic sheet is fixed on the support, the washer, the magnet and the U-shaped cup are fixed on the vibrating elastic sheet through the central shaft, the coil is electrified to generate a magnetic field to interact with the magnetic field of the magnet and drive the vibrating elastic sheet vibrating sheet through the central shaft, and the vibrating elastic sheet vibrates to produce sound, so that the distortion of the whole loudspeaker can be reduced and the output stability can be improved.

Description

Bone conduction loudspeaker

Technical Field

The utility model relates to the technical field of speakers, in particular to a bone conduction speaker.

Background

The speaker serves as a sound generating source, delivering sound to the ear. Most existing speakers use diaphragm vibration to transmit sound to the ear. The loudspeaker can meet the use requirement to a certain extent, but has the following disadvantages: distortion is easily generated and stability is not good.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a bone conduction loudspeaker.

The technical scheme of the utility model is as follows:

the utility model provides a bone conduction speaker, includes support, center pin, vibration shell fragment, coil, china department, magnet, U-shaped cup, the middle part of support is equipped with first through-hole, the vibration shell fragment is fixed first through-hole department, the center pin is vertical to be passed the vibration shell fragment is fixed on the vibration shell fragment, the hypomere of center pin is equipped with keeps off the platform, the coil is fixed the bottom of support is overlapped outside the center pin, the U-shaped cup is installed the bottom of center pin, magnet sliding sleeve is in on the center pin and be located the top of U-shaped cup, magnet is located the below of coil, china department cover is in on the center pin, its top is pressed keep off the below of platform, its bottom is pressed on the magnet.

Preferably, the bone conduction speaker further comprises a conductive sheet, wherein the bracket is provided with a mounting groove, and the conductive sheet is fixed in the mounting groove and electrically connected with the coil.

Preferably, the bone conduction speaker further comprises a screw, a second through hole is formed in the middle of the U-shaped cup, and the upper end of the screw penetrates through the second through hole and is screwed at the bottom of the central shaft, so that the U-shaped cup is fixed on the central shaft.

Preferably, the vibration spring plate, the bracket and the central shaft are integrally formed.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the vibrating elastic sheet is fixed on the support, the washer, the magnet and the U-shaped cup are fixed on the vibrating elastic sheet through the central shaft, the coil is electrified to generate a magnetic field to interact with the magnetic field of the magnet and drive the vibrating elastic sheet to vibrate through the central shaft, and the vibrating elastic sheet vibrates to produce sound to replace the traditional diaphragm structure of the loudspeaker, so that the distortion of the whole loudspeaker can be reduced and the output stability can be improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a bone conduction speaker according to the present invention;

fig. 2 is an exploded view of the bone conduction speaker of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In order to explain the technical means of the present invention, the following description will be given by way of specific examples.

Example 1

As shown in fig. 1 and 2, the bone conduction speaker of this embodiment includes a support 1, a central shaft 2, a vibration elastic sheet 3, a coil 4, a washer 5, a magnet 6, and a U-shaped cup 7, wherein a first through hole 11 is formed in the middle of the support 1, the vibration elastic sheet 3 is fixed at the first through hole 11, the central shaft 2 vertically penetrates through the vibration elastic sheet 3 and is fixed on the vibration elastic sheet 3, the support 1 and the central shaft 2 are integrally formed, a baffle table 21 is arranged at the lower section of the central shaft 2, the coil 4 is fixed at the bottom of the support 1 and is sleeved outside the central shaft 2, the U-shaped cup 7 is installed at the bottom end of the central shaft 2, the magnet 6 is slidably sleeved on the central shaft 2 and is located at the top of the U-shaped cup 7, the magnet 6 is located below the coil 4, and the washer 5 is sleeved on the central shaft 2, the top of which is pressed below the abutment 21 and the bottom of which is pressed against the magnet 6. Wherein, under the speaker quiescent condition: the coil 4 surrounds the magnet 61/3 or above, the distance between the coil 4 and the side surface of the U-shaped cup is greater than or equal to 0.2MM, the distance between the bottom of the U-shaped cup is greater than or equal to 0.8MM, the distance between the vibrating elastic sheet 3 and the hole in the washer 5 belt is greater than or equal to 0.8MM, and the distance between the bottom of the plastic support 1 and the top of the hole in the U-shaped cup belt 7 is greater than or equal to 0.8 MM. During operation, magnet 6 produces first magnetic field, and coil 4 produces second magnetic field and first magnetic field after through the electricity and produces and attract mutually or repel each other, makes magnet 6 drive U-shaped cup 7 and central axle 2 and drive vibration shell fragment 3 vibration sound production, utilizes vibration shell fragment 3 to replace the diaphragm structure of traditional speaker, utilizes the vibration shell fragment to produce bone conduction, makes whole speaker can reduce the distortion and improve output stability.

In this embodiment, bone conduction speaker still includes conducting strip 8, be equipped with mounting groove 12 on the support 1, conducting strip 8 is fixed in mounting groove 12 and with coil 4 electricity is connected, utilizes conducting strip 8 to be connected with coil 4, makes things convenient for whole speaker wiring. The bone conduction speaker further comprises a screw 9, a second through hole 71 is formed in the middle of the U-shaped cup 7, the upper end of the screw 9 penetrates through the second through hole 71 and is screwed at the bottom of the central shaft 2, so that the U-shaped cup 7 is fixed on the central shaft 2, the U-shaped cup 7 is fixed through the screw 9, and the bone conduction speaker is convenient to mount.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A bone conduction speaker, characterized by: including support, center pin, vibration shell fragment, coil, china department, magnet, U-shaped cup, the middle part of support is equipped with first through-hole, the vibration shell fragment is fixed first through-hole department, the center pin is vertical to be passed the vibration shell fragment is fixed on the vibration shell fragment, the hypomere of center pin is equipped with keeps off the platform, the coil is fixed the bottom and the cover of support are in outside the center pin, the U-shaped cup is installed the bottom of center pin, magnet sliding sleeve is in on the center pin and be located the top of U-shaped cup, magnet is located the below of coil, china department overlaps on the center pin, its top is pressed keep off the below of platform, its bottom is pressed on the magnet.

2. The bone conduction speaker of claim 1, wherein: the bone conduction speaker further comprises a conducting strip, a mounting groove is formed in the support, and the conducting strip is fixed in the mounting groove and electrically connected with the coil.

3. The bone conduction speaker according to claim 1 or 2, wherein: the bone conduction loudspeaker further comprises a screw, a second through hole is formed in the middle of the U-shaped cup, and the upper end of the screw penetrates through the second through hole and is screwed at the bottom of the central shaft, so that the U-shaped cup is fixed on the central shaft.

4. The bone conduction speaker according to claim 1 or 2, wherein: the vibration elastic sheet, the support and the central shaft are integrally formed.