CN216146441U

CN216146441U - Outer rear cavity sealing structure of headband type ANC noise reduction earphone

Info

Publication number: CN216146441U
Application number: CN202121813690.4U
Authority: CN
Inventors: 袁智杰; 李亦照; 郑州
Original assignee: Acoustic Innovation Huizhou Co Ltd
Current assignee: Acoustic Innovation Huizhou Co Ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-03-29
Anticipated expiration: 2031-08-05
Also published as: WO2023010650A1

Abstract

The utility model relates to the technical field of noise reduction earphones, in particular to a head-band ANC noise reduction earphone outer rear cavity sealing structure which comprises a loudspeaker front cover, wherein a loudspeaker is arranged on the lower surface of the loudspeaker front cover, a rear cavity cover is connected to the lower surface of the loudspeaker front cover, a loudspeaker is arranged in the rear cavity cover, the rear cavity cover is fixedly arranged on the lower surface of the loudspeaker front cover through a plurality of screws, the loudspeaker front cover is fixedly connected to the upper surface of the outer rear cavity cover through a plurality of screws, the joint of the outer rear cavity cover and an earphone shell is sealed through glue, the outer rear cavity cover is fixedly arranged on the upper surface of the earphone shell through a plurality of screws, the equipment adopts a zero-integration method, realizes the isolation and glue sealing treatment by combining a plurality of gaps and notches into a whole, simplifies the assembly process, simultaneously compresses the production cost and obviously improves the production efficiency, the acoustic consistency and reliability of the product are improved, and the market competitive advantage is increased.

Description

Outer rear cavity sealing structure of headband type ANC noise reduction earphone

Technical Field

The utility model relates to the technical field of noise reduction earphones, in particular to a head band type ANC noise reduction earphone outer rear cavity sealing structure.

Background

In order to meet the requirements of consumers on pursuing true, vivid and clearer tone quality experience in the current market, the acoustic effect is achieved by adding an ANC noise reduction function to the earphone, but the ANC has high requirement on the sealing performance of the rear cavity outside the earmuff, and meanwhile, because the side surface of the earmuff is provided with a plurality of switches, sockets, LEDs and other hole-groove gaps, good sealing performance and the consistency of the left earphone and the right earphone are very difficult to achieve in structural design, excessive parts are structurally removed and are sealed by glue point by point, so that the production cost is increased, the production difficulty of products is increased, competitive advantages of the products in the market are lost, the earphone with the ANC in the market is isolated and sealed aiming at assembly gaps and gaps of switches, keys, USB sockets and the like on the earmuff, most of the earphone adopts separation and isolation in structural design, and single-point sealing, the cost is not advantageous, and the assembly process is complex, so that the sealing structure of the outer rear cavity of the head-band ANC noise reduction earphone is provided.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a head band type ANC noise reduction earphone outer rear cavity sealing structure which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

outer back chamber seal structure of earphone of making an uproar falls in headband formula ANC, including the loudspeaker protecgulum, loudspeaker protecgulum lower surface is provided with loudspeaker, loudspeaker protecgulum lower surface is connected with the back chamber lid, the inside loudspeaker that is provided with of back chamber lid, the lower surface at the loudspeaker protecgulum is covered through a plurality of screw fixed mounting to the back chamber lid, the loudspeaker protecgulum covers the upper surface through a plurality of screw fixed connection back chamber outside, outer back chamber lid all seals through glue with earphone shell junction, outer back chamber lid is through the upper surface of a plurality of screw fixed mounting at the earphone shell.

Preferably, a key mounting groove penetrates through the outer wall of the earphone shell, and a key is arranged in the key mounting groove.

Preferably, a rectangular groove is formed in the earphone shell, and a rear cavity tuning net is arranged in the rectangular groove.

Preferably, a circuit board is arranged in the earphone shell, and two ends of the circuit board are fixedly mounted at the upper ends of the two mounting columns through two screws.

Preferably, a fixing groove is formed in the earphone shell, and a microphone sleeve is arranged in the fixing groove.

Preferably, a microphone tuning net is arranged on the lower surface of the microphone sleeve, and a microphone is arranged on the inner surface of the microphone sleeve.

Preferably, the upper end of the fixing groove is movably connected with a microphone upper cover, and the microphone upper cover is arranged at the upper end of the fixing groove through ultrasonic welding.

Compared with the prior art, the utility model has the following beneficial effects:

(1) the equipment adopts a method of changing parts into a whole, realizes the combination of a plurality of gaps and gaps into a whole for isolation and glue sealing treatment, thereby simplifying the assembly process, simultaneously reducing the production cost, obviously improving the production efficiency, improving the acoustic consistency and reliability of the product and increasing the market competitive advantage.

(2) Through the fixed slot that earphone shell side was seted up, with miaow tuning net and seal cover and miaow packing into inside the fixed slot, with miaow upper cover mounting in the upper end of fixed slot, will miaow upper cover and fixed slot butt fusion fixed mounting through ultrasonic fusion joining technology after that to with miaow and loudspeaker and outer back chamber lid keep apart completely, the fine recognition of miaow and filtration fall the noise that produces because of external factors in the user use like this, thereby ensure that the user enjoys truer, more lifelike, more clear tone quality and experience.

Drawings

Fig. 1 is a schematic overall structure diagram of a sealing structure of an outer rear cavity of a headband type ANC noise reduction earphone according to the present invention;

FIG. 2 is an exploded view of the outer rear cavity sealing structure of the headband type ANC noise reduction earphone of the present invention;

FIG. 3 is a schematic top view of the outer rear cavity sealing structure of the headband type ANC noise reduction earphone of the present invention;

FIG. 4 is a cross-sectional view A-A of the outer rear cavity seal structure of the headband type ANC noise reduction earphone of the present invention;

fig. 5 is an enlarged structural schematic diagram at a position B of the sealing structure of the outer rear cavity of the headband type ANC noise reduction earphone.

In the figure: 1. a horn front cover; 2. a horn; 3. a rear cavity cover; 4. an outer rear cavity cover; 5. a rear cavity tuning net; 6. a circuit board; 7. pressing a key; 8. a screw; 9. a microphone upper cover; 10. a miaow; 11. a microphone sleeve; 12. a microphone tone net; 13. an earphone housing; 14. a rectangular groove; 15. fixing grooves; 16. the key mounting groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

Examples

As shown in fig. 1-5, outer rear cavity seal structure of earphone of making an uproar falls in headband formula ANC, including

loudspeaker protecgulum

1, 1 lower surface of loudspeaker protecgulum is provided with

loudspeaker

2, 1 lower surface of loudspeaker protecgulum is connected with rear cavity lid 3, the inside loudspeaker 2 that is provided with of rear cavity lid 3, rear cavity lid 3 is through a plurality of screw fixed mounting at the lower surface of loudspeaker protecgulum 1, loudspeaker protecgulum 1 is at outer rear cavity lid 4 upper surface through a plurality of screw 8 fixed connection, outer rear cavity lid 4 all seals through glue with earphone shell 13 junction, outer rear cavity lid 4 is through a plurality of screw fixed mounting at the upper surface of earphone shell 13.

Through the technical scheme, when in installation, firstly, the key 7 is installed in the key installation groove 16, the two installation columns are installed in the earphone shell 13, the upper ends of the two installation columns are respectively provided with a screw hole, so that the two screw holes formed at the two ends of the circuit board 6 are aligned with the two installation columns, the circuit board 6 is fixed at the upper ends of the two installation columns through screws, so that the circuit board 6 is completely installed, the microphone 10 can be installed on the inner surface of the microphone sleeve 11 through the rectangular groove 14 arranged in the earphone shell 13 and the rear cavity network 5 arranged in the rectangular groove 14, external noise can be effectively filtered through the rear cavity network 5, the microphone sleeve 11 is installed in the fixed groove 15, so that the microphone 10 is installed on the inner surface of the microphone sleeve 11, the microphone net 12 arranged on the lower surface of the microphone sleeve 11, when people use the microphone 10, external noise is filtered, and after the microphone sleeve 12, the microphone sleeve 11 and the microphone 10 are all installed in the fixed groove 15, install miaow upper cover 9 in the upper end of fixed slot 15, then through ultrasonic welding with miaow upper cover 9 and fixed slot 15 butt fusion fixed mounting, the screw hole who offers on will outer back chamber lid 4 aligns with the screw hole of seting up on earphone shell 13, it is fixed with earphone shell 13 with outer back chamber lid 4 using the screw, then seal the gap of outer back chamber lid 4 and earphone shell 13 junction through glue, then install loudspeaker 2 at the lower surface of loudspeaker protecgulum 1, cover 3 fixed mounting at loudspeaker protecgulum 1's lower surface through screw 8 with the back chamber, make back chamber lid 3 cover loudspeaker 2 on loudspeaker protecgulum 1, align loudspeaker protecgulum 1 and earphone shell 13 after that, thereby accomplish the installation with it fixed through the screw.

In this embodiment, a key installation groove 16 is penetratingly formed on an outer wall of the earphone housing 13, a key 7 is disposed inside the key installation groove 16, and the volume of the device is controlled by the key 7 installed inside the key installation groove 16.

It should be noted that a rectangular groove 14 is formed in the earphone housing 13, a rear cavity tuning net 5 is arranged in the rectangular groove 14, and the rear cavity tuning net 5 is arranged in the rectangular groove 14, so that external noise is reduced and enters the inside of the equipment.

Wherein, the inside circuit board 6 that is provided with of earphone shell 13, two screws fixed mounting are passed through at the upper end of two erection columns at the both ends of circuit board 6, mutually support through the screw hole at two erection columns and the 6 both ends of circuit board that earphone shell 13 is inside to can be with circuit board 6 fixed mounting in the inside of earphone shell 13 through the screw.

When the earphone is specifically arranged, a fixed groove 15 is formed in the earphone shell 13, a microphone sleeve 11 is arranged in the fixed groove 15, a microphone tuning net 12 is arranged on the lower surface of the microphone sleeve 11, a microphone 10 is arranged on the inner surface of the microphone sleeve 11, a microphone upper cover 9 is movably connected to the upper end of the fixed groove 15, the microphone upper cover 9 is arranged at the upper end of the fixed groove 15 through ultrasonic welding, and the microphone sleeve 11 arranged in the fixed groove 15, so that the microphone 10 can be mounted on the inner surface of the microphone holder 11, and by the microphone tuning net 12 provided on the lower surface of the microphone holder 11, when a person uses the microphone 10 to filter out external noise, after the microphone tuning net 12, the microphone cover 11 and the microphone 10 are all installed inside the fixing groove 15, the microphone upper cover 9 is installed at the upper end of the fixing groove 15, and then the microphone upper cover 9 is fixedly attached to the fixing groove 15 by ultrasonic welding, thereby isolating the microphone 10 from the speaker 2, thereby reducing the sound conducted by the speaker 2 into the microphone 10 and affecting the user's voice call quality.

The working principle of the sealing structure of the outer rear cavity of the headband type ANC noise reduction earphone is as follows:

when the microphone is installed, firstly, the keys 7 are installed in the key installation grooves 16, the two installation columns are installed in the earphone shell 13, the upper ends of the two installation columns are respectively provided with screw holes, so that the two screw holes arranged at the two ends of the circuit board 6 are aligned with the two installation columns, the circuit board 6 is fixed at the upper ends of the two installation columns through screws, the circuit board 6 is installed completely, the microphone 10 is installed on the inner surface of the microphone sleeve 11 through the rectangular groove 14 arranged in the earphone shell 13 and the back cavity tuning net 5 arranged in the rectangular groove 14, external noise can be effectively filtered through the back cavity tuning net 5, the microphone sleeve 11 arranged in the fixing groove 15 is used, the microphone 10 is installed on the inner surface of the microphone sleeve 11 through the microphone tuning net 12 arranged on the lower surface of the microphone sleeve 11, when people use the microphone 10, external noise is filtered, and after the microphone tuning net 12, the microphone sleeve 11 and the microphone 10 are all installed in the fixing groove 15, install miaow upper cover 9 in the upper end of fixed slot 15, then through ultrasonic welding with miaow upper cover 9 and fixed slot 15 butt fusion fixed mounting, the screw hole who offers on will outer back chamber lid 4 aligns with the screw hole of seting up on earphone shell 13, it is fixed with earphone shell 13 with outer back chamber lid 4 using the screw, then seal the gap of outer back chamber lid 4 and earphone shell 13 junction through glue, then install loudspeaker 2 at the lower surface of loudspeaker protecgulum 1, cover 3 fixed mounting at loudspeaker protecgulum 1's lower surface through screw 8 with the back chamber, make back chamber lid 3 cover loudspeaker 2 on loudspeaker protecgulum 1, align loudspeaker protecgulum 1 and earphone shell 13 after that, thereby accomplish the installation with it fixed through the screw.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Outer back chamber seal structure of earphone of making an uproar falls in headband formula ANC, including loudspeaker protecgulum (1), its characterized in that: loudspeaker protecgulum (1) lower surface is provided with loudspeaker (2), loudspeaker protecgulum (1) lower surface is connected with rear chamber lid (3), rear chamber lid (3) inside is provided with loudspeaker (2), rear chamber lid (3) are through the lower surface of a plurality of screw fixed mounting in loudspeaker protecgulum (1), loudspeaker protecgulum (1) is through a plurality of screws (8) fixed connection rear chamber lid (4) upper surface outside, outer rear chamber lid (4) all seal through glue with earphone shell (13) junction, outer rear chamber lid (4) are through the upper surface of a plurality of screw fixed mounting in earphone shell (13).

2. The headgear-ANC noise reduction earphone outer rear cavity seal structure of claim 1, wherein: the earphone is characterized in that a key mounting groove (16) penetrates through the outer wall of the earphone shell (13), and a key (7) is arranged in the key mounting groove (16).

3. The headgear-ANC noise reduction earphone outer rear cavity seal structure of claim 1, wherein: a rectangular groove (14) is formed in the earphone shell (13), and a rear cavity tuning net (5) is arranged in the rectangular groove (14).

4. The headgear-ANC noise reduction earphone outer rear cavity seal structure of claim 1, wherein: the earphone is characterized in that a circuit board (6) is arranged inside the earphone shell (13), and two ends of the circuit board (6) are fixedly mounted at the upper ends of the two mounting columns through two screws.

5. The headgear-ANC noise reduction earphone outer rear cavity seal structure of claim 1, wherein: a fixing groove (15) is formed in the earphone shell (13), and a microphone sleeve (11) is arranged in the fixing groove (15).

6. The headgear-ANC noise reduction earphone outer rear cavity seal structure of claim 5, wherein: the lower surface of the microphone sleeve (11) is provided with a microphone tuning net (12), and the inner surface of the microphone sleeve (11) is provided with a microphone (10).

7. The headgear-ANC noise reduction earphone outer rear cavity seal structure of claim 6, wherein: the upper end of the fixing groove (15) is movably connected with a microphone upper cover (9), and the microphone upper cover (9) is arranged at the upper end of the fixing groove (15) through ultrasonic welding.