CN212850987U

CN212850987U - Sound production monomer and sound production device

Info

Publication number: CN212850987U
Application number: CN202021911190.XU
Authority: CN
Inventors: 朱祥乐; 刘华伟
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 is including the basin frame that has accommodating space, locate installed part on the basin frame and locating vibration system and magnetic circuit in the accommodating space, the installed part include the collar, certainly the collar buckles the connecting plate that extends, and with the protruding board that the connecting plate is connected, the collar is located on the basin frame, vibration system's vibrating diaphragm holding in on the collar, protruding board certainly connecting portion are to keeping away from the convex setting of magnetic circuit direction, seted up the intercommunication on the protruding board the ante-chamber with the passageway of ventilating 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 above object, according to the sound production device provided by the present invention, the sound production unit is disposed in the housing having the cavity, and is used for dividing the cavity into the front cavity and the rear cavity; the sound production monomer is including the basin frame that has accommodating space, locate installed part on the basin frame and locating vibration system and magnetic circuit in the accommodating space, the installed part include the collar, certainly the collar buckles the connecting plate that extends, and with the protruding board that the connecting plate is connected, the collar is located on the basin frame, vibration system's vibrating diaphragm holding in on the collar, protruding board certainly the connecting plate is to keeping away from the convex setting of magnetic circuit direction, seted up the intercommunication on the protruding board the ante-chamber with the passageway of ventilating in back chamber.

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

Preferably, the basin frame is including the lateral wall, connecting portion and the installation department that connect gradually, the lateral wall with magnetic circuit looks adaptation, the installation department with the collar is connected, the hole that leaks is seted up in on the connecting portion.

Preferably, the connecting plate extends from the mounting ring to a direction away from the vibrating diaphragm, and the connecting plate is sleeved on the outer side of the mounting part.

Preferably, the basin stand still include a plurality of with the stopper that the installation department is connected, the stopper is located the installation department is close to one side of magnetic circuit, the installation ring cover is established a plurality of the outside of stopper.

Preferably, the sound generating unit further includes a damper disposed on the connection portion, and the damper shields at least a partial region of the one leakage hole.

Preferably, the magnetic circuit system comprises a magnetic yoke matched with the mounting part, main magnetic steel forming a magnetic gap with the magnetic yoke at an interval, and a magnetic conductive plate arranged on the main magnetic steel.

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.

Preferably, the number of the protruding plates is multiple, and the protruding plates are arranged in pairs in an opposite mode.

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

In the utility model, the front cavity and the rear cavity are communicated by adopting the ventilation channel, so that the air pressure between the front cavity and the rear cavity can be balanced to generate the sound 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, and the air pressure between the earphone and the eardrum can be reduced or removed by the fact that the front cavity and the rear cavity are communicated through the ventilation channel, so that the discomfort of the user is relieved or removed; the ventilation channel 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; the front cavity is communicated with the rear cavity through the ventilation channel, 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
17	Limiting block	19	Bump
				3	Vibration system	31	Vibrating diaphragm
311	Ball top	313	Folded ring part
				315	Fixing part	33	Voice coil
4	Ventilation channel	5	Magnetic circuit system
				51	Magnetic yoke	511	Base plate
512	Clamping groove	513	Side plate
				52	Magnetic gap	53	Main magnetic steel
55	Magnetic conductive plate	7	Damping fin
				9	Mounting member	91	Mounting ring
93	Convex plate	95	Connecting plate
				2	Accommodating space

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 (not shown) having a cavity, and is used for dividing the cavity into a front cavity and a rear cavity; the sound production monomer 10 is including the basin frame 1 that has accommodating space 2, locate installed part 9 on the basin frame 1, and locate vibration system 3 and magnetic circuit 5 in the accommodating space 2, installed part 9 includes collar 91, buckle the connecting plate 95 that extends from collar 91, and the protruding board 93 of being connected with connecting plate 95, collar 91 is located on the basin frame 1, vibration system 3's vibrating diaphragm 31 is held on collar 91, protruding board 93 is to keeping away from 5 direction protrusions settings of magnetic circuit from connecting plate 95, set up the passageway 4 of ventilating of intercommunication ante-chamber and back chamber on the protruding board 93.

In this embodiment, the magnetic circuit system 5 includes a magnetic yoke 51 matching with the basin frame 1, a main magnetic steel 53 spaced from the magnetic yoke 51 to form a magnetic gap 52, and a magnetic conductive plate 55 disposed on the main magnetic steel 53, the vibration system 3 includes a diaphragm 31 fixed on the basin frame 1 or the mounting member 9, and a voice coil 33 driving the 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. The mounting ring 91 is a copper ring in this embodiment.

Through setting up ventilation channel 4 intercommunication front chamber and rear chamber to make the sound wave that vibrating diaphragm 31 vibration produced can get into the rear chamber from the front chamber through ventilation channel 4, the sound wave that vibrating diaphragm 31 vibration produced can get into the front chamber from the rear chamber through ventilation channel 4 simultaneously, and 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 ventilation channel 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; because air in the ear canal is compressed when the earphone is worn, discomfort of a user is caused, and the ventilation channel 4 is communicated with the front cavity and the rear cavity, so that the air pressure between the earphone and the eardrum can be reduced or removed, and the discomfort of the user is relieved or removed; the ventilation channel 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 earphone runs in a transparent mode; the front cavity is communicated with the rear cavity through the ventilation channel 4, so that active noise reduction debugging is facilitated.

The basin stand 1 is provided with a leakage hole 14 for communicating the containing space 2 and the rear cavity. When vibrating diaphragm 31 sound production vibration, the air in basin frame 1 is compressed by the vibration of vibrating diaphragm 31, and accessible leakage hole 14 balances vibrating diaphragm 31 rear side space atmospheric pressure, and vibrating diaphragm 31 rear side is the one side that vibrating diaphragm 31 connects voice coil 33, realizes the atmospheric pressure balance between back chamber and the accommodating space 2 to make things convenient for vibrating diaphragm 31 to vibrate, improve tone quality.

Basin frame 1 is including the lateral wall 11, connecting portion 13 and the installation department 15 that connect gradually, and

lateral wall

11 and 5 looks adaptations of magnetic circuit, and installation department 15 is connected with collar 91, and leakage hole 14 is seted up on connecting portion 13. 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, the mounting portion 15 extends from the connecting portion 13 to a direction close to the diaphragm 31, and the leakage hole 14 is opened on the connecting portion 13. 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. 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.

Further, the connecting plate 95 extends from the mounting ring 91 to a direction away from the diaphragm 31, and the connecting plate 95 is sleeved on the outer side of the mounting portion 15. The mounting part is stably connected with the basin stand 1 by sleeving the connecting plate 95 outside the mounting part 15. In this embodiment, the frame 1 is circular, and correspondingly, the connecting plate 95 is an arc-shaped plate adapted to the frame 1, or an annular plate adapted to the frame 1.

The basin stand 1 further comprises a plurality of limiting blocks 17 connected with the mounting portion 15, the limiting blocks 17 are arranged on one side, close to the magnetic circuit system 5, of the mounting portion 15, and the mounting ring 91 is sleeved on the outer sides of the limiting blocks 17. Along magnetic circuit 5 to the direction of vibrating diaphragm 31, stopper 17 protrusion installation portion 15 sets up for collar 91 in this embodiment, stopper 17's quantity is 6, and a plurality of stopper 17 looks interval sets up the cyclic annular of formation and collar 91 adaptation, through establishing collar 91 cover in the stopper 17 outside, thereby can further the relation of connection between fixed mounting spare 9 and basin frame 1.

In addition, set up the passageway 4 of ventilating through setting up installed part 9, thereby make the utility model provides a basin frame 1's structure is compared in the basin frame structure that does not set up the passageway 4 of ventilating among the prior art and only need set up stopper 17 fixed mounting 9, and the structure of locating vibration system 3 and magnetic circuit 5 in basin frame 1 is compared in the sound production monomer that does not set up the passageway 4 of ventilating among the prior art can not do the change, makes things convenient for the free production facility of sound production to upgrade.

Further, the sound generating unit 10 further includes a damper 7 disposed on the connecting portion 13, and the damper 7 covers at least a partial area of one 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 requirements, or adjust the area of the damping fin 7 covering the leakage hole 14, so as to adjust the size of the communication area between the rear cavity and the accommodating space 2, thereby realizing the tone quality adjustment. It can be understood by those skilled in the art that the number of the leakage holes 14 may be plural, when the number of the damping fin 7 is one, one damping fin 7 may only shield a partial region of one leakage hole 14, or may shield partial regions of a plurality of leakage holes 14 respectively by one damping fin 7, 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 damper pieces 7 is plural, the damper pieces 7 may be provided for each of the leak holes 14, each of the damper pieces 7 may shield a partial region of one of the leak holes 14, and each of the damper pieces 7 may completely shield each of the leak holes 14.

In this embodiment, the diaphragm 31 includes a top portion 311, a corrugated portion 313 and a fixing portion 315, which are connected in sequence from inside to outside, and the fixing portion 315 is connected to the mounting ring 91. The fixing part 315 is connected with the mounting ring 91, so that the diaphragm 31 can be fixed on the frame 1.

In one embodiment, the number of the protruding plates 93 is multiple, and the multiple protruding plates 93 are arranged opposite to each other. In the present embodiment, the number of the protruding plates 93 is 2, and 2 protruding plates 93 are oppositely disposed. By arranging the protruding plates 93 in a pairwise opposite arrangement, the ventilation channels 4 are also arranged in a pairwise opposite arrangement, so that airflow flowing balance on two opposite sides of the sounding single body 10 is facilitated. It will be understood by those skilled in the art that the number of the leakage holes 14 may also be plural, and the plural leakage holes 14 are oppositely arranged in pairs to balance the airflow flowing on the two opposite sides of the sound-generating unit 10, and in this embodiment, the leakage holes 14 are arc-shaped grooves which are arranged along the curved connecting portion 13.

In another embodiment, the magnetic circuit system 5 comprises a magnetic yoke 51 matched with the basin stand 1, a main magnetic steel 53 spaced from the magnetic yoke 51 to form a magnetic gap 52, and a magnetic conduction plate 55 arranged on the main magnetic steel 53. 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. In the embodiment shown in fig. 1, the frame 1 further includes a protrusion 19 connected to the sidewall 11, the yoke 51 is provided with a slot 512 adapted to the protrusion 19, and the yoke 51 is connected to the frame 1 by engaging the protrusion 19 with the slot 512.

The utility model also provides a sounding device, sounding device is including the casing that has the cavity and as above sounding monomer 10, and sounding monomer 10 separates the cavity 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 is including the basin frame that has accommodating space, locate installed part on the basin frame and locating vibration system and magnetic circuit in the accommodating space, the installed part include the collar, certainly the collar buckles the connecting plate that extends, and with the protruding board that the connecting plate is connected, the collar is located on the basin frame, vibration system's vibrating diaphragm holding in on the collar, protruding board certainly the connecting plate is to keeping away from the convex setting of magnetic circuit direction, seted up the intercommunication on the protruding board the ante-chamber with the passageway of ventilating in back chamber.

2. The sounding unit as claimed in claim 1, wherein the frame is provided with a leakage hole communicating the receiving space and the rear cavity.

3. The sounding unit as claimed in claim 2, wherein the frame includes a sidewall, a connecting portion and a mounting portion, the sidewall is adapted to the magnetic circuit system, the mounting portion is connected to the mounting ring, and the leakage hole is opened in the connecting portion.

4. The sounding unit as claimed in claim 3, wherein the connecting plate extends from the mounting ring to a direction away from the diaphragm, and the connecting plate is sleeved on an outer side of the mounting portion.

5. The sounding unit as claimed in claim 3, wherein the basin stand further comprises a plurality of limiting blocks connected to the mounting portion, the limiting blocks are disposed on a side of the mounting portion close to the magnetic circuit system, and the mounting ring is sleeved outside the limiting blocks.

6. The sound generating unit as claimed in claim 3, further comprising a damper disposed on the connecting portion, wherein the damper covers at least a partial area of one of the leakage holes.

7. The sounding unit according to claim 3, wherein the magnetic circuit system comprises a yoke coupled to the mounting portion, a main magnetic steel spaced from the yoke to form a magnetic gap, and a magnetic conductive plate disposed on the main magnetic steel.

8. The sounding unit of any one of claims 1 to 7, wherein the diaphragm comprises a ball top portion, a folded ring portion and a fixing portion, which are sequentially connected from inside to outside, and the fixing portion is connected with the mounting ring.

9. The sounding unit according to any one of claims 1 to 7, wherein the number of the protruding plates is plural, and the plural protruding plates are arranged opposite to each other in pairs.

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.