CN212850985U

CN212850985U - Sound production monomer and sound production device

Info

Publication number: CN212850985U
Application number: CN202021911140.1U
Authority: CN
Inventors: 王继宗; 孙川
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-03-30
Anticipated expiration: 2030-09-03

Abstract

The utility model discloses a sounding monomer and a sounding device, wherein the sounding monomer is arranged in a shell with a cavity and is used for dividing the cavity into a front cavity and a rear cavity; the sound production monomer includes the support, has accommodating space's basin frame and locates vibration system and magnetic circuit in the accommodating space, the support includes the lantern ring and sets up bulge on the lantern ring, the lantern ring cover is established the periphery of basin frame, offer on the bulge and be used for the intercommunication the ante-chamber with the air vent in back chamber. The utility model discloses a sound production monomer and sound production device atmospheric pressure of balanced front chamber and back chamber reduces or eliminates the uncomfortable sense of user, promotes sound production monomer tone quality.

Description

Sound production monomer and sound production device

Technical Field

The utility model relates to an electroacoustic conversion technical field, in particular to sound production monomer and sound production device.

Background

Earphones are widely used in modern consumer electronics. In order to improve the tone quality effect felt by a user and reduce the influence of external environment sound, the tightness between the existing earphone and the ear of the user is increased by increasing a sealing structure. When a user wears the earphone, air compression in the auditory canal of the user can be caused, so that the air pressure in the auditory canal is increased, the user feels uncomfortable, and particularly the discomfort of the in-ear earphone is obvious.

Therefore, it is desirable to provide a new sound generation device to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a sound production monomer and sound production device aims at solving the technical problem that the uncomfortable that the user's ear canal atmospheric pressure improves and arouses when wearing the earphone feels.

In order to achieve the purpose, the utility model provides a sounding monomer which is arranged in a shell with a cavity and is used for dividing the cavity into a front cavity and a rear cavity; the sound production monomer includes the support, has accommodating space's basin frame and locates vibration system and magnetic circuit in the accommodating space, the support includes the lantern ring and sets up bulge on the lantern ring, the lantern ring cover is established the periphery of basin frame, offer on the bulge and be used for the intercommunication the ante-chamber with the air vent in back chamber.

Preferably, magnetic circuit includes the yoke, the basin frame is including the lateral wall, connecting portion and the installation department that connect gradually, the lateral wall with the outer wall butt of yoke, the inboard of the lantern ring with the outside butt of installation department, the top of installation department is used for fixing vibration system's vibrating diaphragm.

Preferably, the protrusion is an annular structure circumferentially surrounding the collar.

Preferably, the number of the vent holes is two, and the two vent holes are symmetrically arranged on two sides of the protruding portion respectively.

Preferably, the projections are arranged perpendicular to the collar.

Preferably, the connecting part is provided with a leakage hole for communicating the accommodating space with the rear cavity.

Preferably, the sound generating unit further comprises a damping sheet arranged at the bottom of the connecting portion, and the damping sheet at least covers a partial area of one of the leakage holes.

Preferably, the basin stand further comprises a mounting ring arranged at the top end of the mounting part, and the vibrating diaphragm is fixedly arranged on the mounting ring.

Preferably, the vibrating diaphragm comprises a ball top, a bending ring part and a fixing part which are sequentially connected from inside to outside, and the fixing part is connected with the mounting ring.

Furthermore, the utility model also provides a sounding device, sounding device including the casing that has the cavity and as aforesaid the sound production monomer, the sound production monomer will the cavity is separated for antechamber and back chamber.

In the utility model, the sounding monomer of the utility model comprises a support, a basin frame with a containing space, and a vibration system and a magnetic circuit system which are arranged in the containing space, wherein the support comprises a lantern ring and a convex part arranged on the lantern ring, the lantern ring is sleeved on the periphery of the basin frame, and the convex part is provided with an air vent for communicating the front cavity and the rear cavity, so that the air pressure between the front cavity and the rear cavity can be balanced to generate an acoustic short circuit effect; due to the fact that air in the ear canal is compressed when the earphone is worn, discomfort of a user is caused, the front cavity and the rear cavity are communicated through the vent hole, air pressure between the earphone and the eardrum can be reduced or removed, and therefore discomfort of the user is relieved or removed; the vent hole is communicated with the front cavity and the rear cavity, so that external sound can pass through the rear cavity and the front cavity to reach the eardrum, and the transparent mode operation of the earphone is realized; in addition, the front cavity is communicated with the rear cavity through the vent hole, so that active noise reduction debugging is facilitated.

Drawings

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

Fig. 1 is a schematic view of a disassembled structure of an embodiment of the sound-generating unit of the present invention;

fig. 2 is a schematic cross-sectional view of an embodiment of the sound generating unit of the present invention.

Examples reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Sound monomer	1	Basin rack
11	Side wall	13	Connecting part
				14	Leakage hole	15	Mounting part
16	Mounting ring	81	Lantern ring
				3	Vibration system	31	Vibrating diaphragm
311	Ball top	313	Folded ring part
				315	Fixing part	33	Voice coil
4	Vent hole	5	Magnetic circuit system
				51	Magnetic yoke	511	Base plate
512	Clamping groove	513	Side plate
				52	Magnetic gap	53	Main magnetic steel
82	Projecting part	55	Magnetic conductive plate
				7	Damping fin	2	Accommodating space
8	Support frame

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a sound production monomer 10.

Referring to fig. 1 and 2, in the sound generating unit 10 according to the technical solution of the present invention, the sound generating unit 10 is disposed in a housing having a cavity, and is used for dividing the cavity into a front cavity and a rear cavity; the sound production monomer 10 includes support 8, basin frame 1 that has accommodating space 2 and locates vibration system 3 and magnetic circuit 5 in the accommodating space 2, support 8 includes the lantern ring 81 and sets up bulge 82 on the lantern ring 81, the lantern ring 81 cover is established the periphery of basin frame 1, offer on the bulge 82 and be used for the intercommunication the ante-chamber with the air vent 4 of back chamber.

In this embodiment, put the periphery at basin frame 1 through lantern ring 81 card and realize the assembly of each other of support 8 and basin frame 1, when needing air vent 4, only need with support 8 cover in the outside of basin frame 1 can, simple structure, convenient assembly. The magnetic circuit system 5 comprises a magnetic yoke 51 matched with the basin frame 1, a main magnetic steel 53 forming a magnetic gap 52 with the magnetic yoke 51 at an interval, and a magnetic conduction plate 55 arranged on the main magnetic steel 53, the vibration system 3 comprises a vibrating diaphragm 31 fixedly arranged on the basin frame 1 and a voice coil 33 driving the vibrating diaphragm 31 to vibrate, and the voice coil 33 is inserted into the magnetic gap 52. Under the action of the magnetic field generated by the magnetic circuit system 5, the voice coil 33 vibrates after being energized, thereby driving the diaphragm 31 to vibrate and sound. Of course, in other embodiments, the magnetic circuit system 5 and the vibration system 3 may have other structures to realize vibration sound production.

Through setting up air vent 4 intercommunication the front chamber with the back chamber to make the sound wave that vibrating diaphragm 31 vibration produced can get into the back chamber from the front chamber through air vent 4, the sound wave that vibrating diaphragm 31 vibration produced can get into the front chamber from the back chamber through air vent 4 simultaneously, two sound wave opposite directions promptly make partial sound wave offset, produce the sound short-circuit effect, reach the purpose of adjusting the frequency response.

The utility model adopts the vent hole 4 to communicate the front cavity and the rear cavity, so that the air pressure between the front cavity and the rear cavity can be balanced, and the sound short circuit effect is generated; due to the fact that air in the ear canal is compressed when the earphone is worn, discomfort of a user is caused, the air vent 4 is communicated with the front cavity and the rear cavity, so that air pressure between the earphone and the eardrum can be reduced or removed, and discomfort of the user is relieved or removed; the vent hole 4 is communicated with the front cavity and the rear cavity, so that external environment sound can pass through the rear cavity and the front cavity to reach the eardrum, and the transparent mode operation of the earphone is realized. Furthermore, the utility model discloses a cavity and back chamber before air vent 4 intercommunication are convenient for carry out the debugging that sound production monomer 10 initiative was fallen and is made an uproar.

Basin frame 1 is including the lateral wall 11, connecting portion 13 and the installation department 15 that connect gradually, lateral wall 11 with the outer wall butt of yoke 51, the inboard of lantern ring 81 with the outside butt of installation department 15, the top of installation department 15 is used for fixing vibrating diaphragm 31 of vibration system 3. The side wall 11, the connecting portion 13 and the mounting portion 15 may form a step structure, so that along the vibration direction of the voice coil 33, the projection of the yoke 51 adapted to the side wall 11 falls on the diaphragm 31, and the diaphragm 31 may vibrate between the front cavity and the connecting portion 13, which is beneficial for the vibration and sound production of the diaphragm 31. The basin stand 1 is firmly connected with the magnetic yoke 51, and the reliability of the generating single body is improved. The magnetic yoke 51 comprises a bottom plate 511 and a side plate 513 bent and extended from the bottom plate 511, the main magnetic steel 53 is attached to the bottom plate 511, and the side wall 11 is sleeved outside the side plate 513. The basin stand 1 further comprises a convex block (not shown) connected with the side wall 11, a clamping groove 512 matched with the convex block is formed in the magnetic yoke 51, and the magnetic yoke 51 is connected with the basin stand 1 through the clamping of the convex block and the clamping groove 512.

The bulge 82 of this embodiment is for following the annular structure that lantern ring 81 circumference was encircleed, bulge 82 certainly the bottom of the lantern ring 81 is to keeping away from the direction of installation department 15 is extended, and lantern ring 81 encircles along the circumference of installation department 15, and the inner wall of the lantern ring 81 and the outer wall butt of installation department 15, and support 8 is the integrated into one piece structure, and bulge 82 is annular structure, is convenient for assemble and has improved the steadiness of structure, and bulge 82 outwards extends from the bottom of the lantern ring 81 to make the air vent 4 of seting up on bulge 82 expose, switch on preceding chamber and back chamber.

Preferably, the protrusion 82 is perpendicular to the collar 81, so that the vent hole 4 can be horizontally disposed in the casing of the sound generating device, and the airflow can smoothly pass through the vent hole 4, thereby improving the ventilation efficiency of the airflow.

Further, the number of the vent holes 4 is two, and the two vent holes 4 are symmetrically arranged on two sides of the protruding portion 82 respectively, so that the balance of airflow flowing on two opposite sides of the sounding unit is facilitated. It can be understood by those skilled in the art that the number of the vent holes 4 may be one or more, and a plurality of the vent holes 4 are uniformly distributed along the circumference of the protrusion 82 to balance the airflow on the two opposite sides of the sound generating unit, in this embodiment, the vent holes 4 are arc-shaped holes which are arranged along the curvature of the protrusion 82.

The connecting part 13 is provided with a leakage hole 14 for communicating the accommodating space 2 with the rear cavity. The connecting portion 13 extends from one end of the sidewall 11 close to the diaphragm 31 to a direction away from the magnetic circuit system 5, and the mounting portion 15 extends from the connecting portion 13 to a direction close to the diaphragm 31. In the embodiment, the frame 1 is circular, the side wall 11, the connecting part 13 and the mounting part 15 are coaxially arranged, and the diameter of the side wall 11 is smaller than that of the mounting part 15. The air in the rear chamber may directly pass through the leakage hole 14 on the connection portion 13 in the vibration direction of the voice coil 33. When vibrating diaphragm 31 sound production vibration, the air in basin frame 1 is compressed by vibrating diaphragm 31 vibration, and accessible leakage hole 14 balances vibrating diaphragm 31 rear side space atmospheric pressure, realizes the atmospheric pressure balance between back chamber and the accommodating space 2 to make things convenient for vibrating diaphragm 31 vibration, improve tone quality.

Further, the sound production device 100 further comprises a damping sheet 7 disposed at the bottom of the connecting portion 13, and the damping sheet 7 covers at least a partial area of one of the leakage holes 14. The number of the leakage holes 14 may be multiple, when the number of the damping fins 7 is one, one damping fin 7 may only shield a partial region of one leakage hole 14, or one damping fin 7 may respectively shield partial regions of a plurality of leakage holes 14, one damping fin 7 may completely shield one leakage hole 14, or one damping fin 7 may completely shield a plurality of leakage holes 14; when the number of the damping fins 7 is plural, the damping fins 7 may be provided for each of the leakage holes 14, each of the damping fins 7 blocks a partial area of one of the leakage holes 14, and each of the damping fins 7 may completely block each of the leakage holes 14. The damper 7 may be attached to the connection portion 13, or may be provided on the connection portion 13 by welding or the like. The person skilled in the art can use damping fins 7 of different materials according to different user demands, or adjust the area that damping fin 7 shields leakage hole 14 to adjust the size of rear chamber and accommodating space 2 communicating area, realize tone quality regulation.

In another embodiment, the frame 1 further includes a mounting ring 16 disposed at the top end of the mounting portion 15, and the diaphragm 31 is fixed on the mounting ring 16. The mounting ring 16 may be a copper ring. In other embodiments, a through hole communicating the receiving space 2 and the front cavity may be formed by changing the shape, thickness, and the like of the copper ring.

In this embodiment, the diaphragm 31 includes a top portion 311, a corrugated portion 313 and a fixing portion 315, which are sequentially connected from inside to outside, and the fixing portion 315 is connected to the mounting ring 16. The fixing portion 315 is connected to the mounting ring 16, so that the diaphragm 31 can be fixed to the frame 1.

The utility model also provides a sounding device, sounding device including the casing that has the cavity and as above sounding monomer 10, sounding monomer 10 will the cavity is separated for antechamber and back chamber. The specific embodiment of the sound generating device of the present invention is substantially the same as the above-mentioned embodiments of the sound generating unit 10, and is not repeated herein. The sound generating device may be a headphone, an in-ear headphone or the like.

The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.

Claims

1. The sounding unit is characterized in that the sounding unit is arranged in a shell with a cavity and is used for dividing the cavity into a front cavity and a rear cavity; the sound production monomer includes the support, has accommodating space's basin frame and locates vibration system and magnetic circuit in the accommodating space, the support includes the lantern ring and sets up bulge on the lantern ring, the lantern ring cover is established the periphery of basin frame, offer on the bulge and be used for the intercommunication the ante-chamber with the air vent in back chamber.

2. The sounding monomer of claim 1, wherein the magnetic circuit system comprises a magnetic yoke, the frame comprises a side wall, a connecting portion and an installation portion, the side wall is abutted against the outer wall of the magnetic yoke, the inner side of the collar is abutted against the outer side of the installation portion, and the top end of the installation portion is used for fixing the diaphragm of the vibration system.

3. A sound generating unit as claimed in claim 2, wherein the projection is an annular structure circumferentially surrounding the collar.

4. The sounding unit according to claim 3, wherein the number of the vent holes is two, and the two vent holes are symmetrically arranged on two sides of the protruding portion respectively.

5. A sound generating unit as claimed in claim 3, wherein the projections are arranged perpendicularly to the collar.

6. The sounding unit as claimed in claim 2, wherein the connecting portion has a leakage hole for communicating the receiving space with the rear cavity.

7. The sound generating unit as claimed in claim 6, further comprising a damper disposed at the bottom of the connecting portion, wherein the damper covers at least a partial area of one of the leakage holes.

8. The sounding unit according to any one of claims 2 to 7, wherein the frame further comprises a mounting ring disposed at a top end of the mounting portion, and the diaphragm is fixedly disposed on the mounting ring.

9. The sounding monomer of claim 8, wherein the diaphragm comprises a ball top, a bending ring portion and a fixing portion, which are sequentially connected from inside to outside, and the fixing portion is connected with the mounting ring.

10. A sound-producing device comprising a housing having a cavity and a sound-producing monomer according to any one of claims 1 to 9, the sound-producing monomer dividing the cavity into a front chamber and a rear chamber.