CN215072899U

CN215072899U - Noise reduction earphone

Info

Publication number: CN215072899U
Application number: CN202120689006.XU
Authority: CN
Inventors: 周丹; 邱海矶; 范晓珊
Original assignee: Zhuhai Megain Technology Co ltd
Current assignee: Zhuhai Megain Technology Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-12-07
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses an earphone of making an uproar falls, include: the shell comprises an earplug part and an ear handle part connected with the earplug part, wherein the ear handle part is provided with a sound absorption hole communicated with the external environment, a sound adjusting hole communicated with the external environment and an installation cavity communicated with the sound absorption hole and the sound adjusting hole; the noise reduction device is installed in the installation cavity and is just opposite to the sound absorption hole, and the noise reduction device comprises a noise reduction microphone, a noise reduction loudspeaker and a circuit board, wherein the noise reduction microphone and the noise reduction loudspeaker are electrically connected with the circuit board. Compared with the prior art, the utility model discloses be favorable to reducing the volume of earplug portion to when the user dressed the earphone of making an uproar, improve user's comfort level.

Description

Noise reduction earphone

Technical Field

The utility model relates to a technical field of the earphone of making an uproar falls, in particular to earphone of making an uproar falls.

Background

The noise reduction earphone is an earphone which reduces noise by using a certain method. At present, two noise reduction earphones are respectively: active noise reduction headphones and passive noise reduction headphones. The active noise reduction function is to generate reverse sound waves equal to external noise through a noise reduction system to neutralize the noise, so that the noise reduction effect is realized. The passive noise reduction earphone mainly forms a closed space by surrounding ears, or adopts sound insulation materials such as silica gel earplugs and the like to block outside noise.

A conventional earphone generally includes an earplug portion and a stem portion connected to the earplug portion. The earplug part is usually provided with electronic components, such as a loudspeaker, a circuit board and the like, which are necessary for the earphone, but a noise reduction device is usually further arranged on the earplug part to reduce noise of the earphone, so that the volume of the earplug part is increased. When the user dresses the earphone of making an uproar that falls, because the volume of earplug portion is great, cause the extrusion easily to the entrance of user's external auditory canal, reduce user's comfort level, so need improve urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a noise reduction earphone aims at being favorable to reducing the volume of earplug portion to when the user dressed noise reduction earphone, improve user's comfort level.

In order to achieve the above object, the utility model provides a noise reduction earphone, include:

the shell comprises an earplug part and an ear handle part connected with the earplug part, wherein the ear handle part is provided with a sound absorption hole communicated with the external environment, a sound adjusting hole communicated with the external environment and an installation cavity communicated with the sound absorption hole and the sound adjusting hole;

the noise reduction device is arranged in the installation cavity and is right opposite to the sound absorption hole, the noise reduction device comprises a noise reduction microphone, a noise reduction loudspeaker and a circuit board, and the noise reduction microphone and the noise reduction loudspeaker are electrically connected with the circuit board.

In an embodiment of the present invention, the noise reduction device further includes a mounting seat, the mounting seat is hollow to form a containing cavity, the noise reduction microphone, the noise reduction speaker and the circuit board are all installed in the containing cavity, the cavity wall of the containing cavity is provided with two through holes, and the two through holes are correspondingly communicated with the sound absorption hole and the sound adjustment hole;

the noise reduction earphone further comprises a pressing block and a propping piece, the pressing block is movably arranged in the installation cavity, one end of the propping piece is connected with the cavity wall of the installation cavity, and the other end of the propping piece props against the pressing block, so that the pressing block and the cavity wall at the corresponding position of the installation cavity are clamped and fixed together with the installation seat.

In an embodiment of the present invention, the mounting seat is back to one side of the pressing block is provided with a positioning block, and a positioning groove matched with the positioning block is arranged on the cavity wall of the mounting cavity.

In an embodiment of the present invention, a threaded hole is formed through the cavity wall of the mounting cavity;

the abutting piece is a threaded piece, one end of the threaded piece is screwed with the threaded hole, and the other end of the threaded piece is abutted with one side, back to the mounting seat, of the abutting block.

In an embodiment of the present invention, the abutting member is an elastic member, and the elastic member is installed between the abutting member and the cavity wall of the installation cavity, so as to apply an elastic supporting force to the abutting member.

In an embodiment of the present invention, a guide hole is formed through a wall of the installation cavity;

a guide rod is arranged on one side, back to the mounting seat, of the pressing block, and the guide rod and the guide hole are arranged in an aligned mode;

the elastic piece is a spring, and the spring is sleeved on the guide rod.

In an embodiment of the present invention, the mounting cavity extends along an extending direction of the handle portion, and the mounting seat is slidably connected in the mounting cavity along the extending direction of the mounting cavity.

In an embodiment of the present invention, the mounting cavity extends along an extending direction of the ear stem portion, and the pressing block and the cavity wall of the mounting cavity close to the ear plug portion together clamp and fix the mounting seat;

the mounting cavity is arranged in a penetrating way far away from the cavity wall of the earplug part to form a mounting opening; the mounting opening is in threaded connection with an end cover, and one end, far away from the pressing block, of the pressing piece is connected with the end cover.

In an embodiment of the present invention, the accommodating cavity is further provided with a sound absorbing cotton.

In an embodiment of the present invention, a flexible layer is disposed on a side of the pressing block facing the mounting seat.

The utility model discloses technical scheme is favorable to reducing the volume of earplug portion through setting up the device of making an uproar of falling in ear handle portion to when the user dressed the earphone of making an uproar, improve user's comfort level. When making an uproar device fall the earlobe portion and fall, fall the low audio frequency noise in the environment that the microphone of making an uproar listened can be listened to the ear, the circuit board according to fall the low audio frequency noise in the environment that the microphone of making an uproar listened, produce with low audio frequency noise opposite phase, the sound wave that the amplitude is the same is made and is offset the noise, offset the noise and play from falling the loudspeaker of making an uproar to filter the noise, the person of wearing hears clear audio signal, improves the sense of hearing enjoyment of person of wearing.

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 structural diagram of an embodiment of the noise reduction earphone of the present invention;

FIG. 2 is a schematic sectional view taken along the line A-A in FIG. 1;

fig. 3 is a schematic structural diagram of another embodiment of the noise reduction earphone of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1000	Noise reduction earphone	125	Threaded hole
100	Shell body	126	End cap
				110	Earplug part	127	Connecting channel
111	Installation space	200	Mounting seat
				120	Ear handle part	210	Locating block
121	Sound absorption hole	300	Pressing block
				122	Sound adjusting hole	310	Guide rod
123	Mounting cavity	320	Flexible layer
				124	Guide hole	400	Propping piece

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 work 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.

Referring to fig. 1 and fig. 2, the present invention provides a noise reduction earphone 1000, where the noise reduction earphone 1000 includes: a housing 100 and a noise reducing device.

The housing 100 includes an ear plug portion 110 and an ear stem portion 120 connected to the ear plug portion 110, the ear stem portion 120 may be configured to be hung on an outer contour of an ear of a wearer, and the ear stem portion 120 may also be configured to fit to an ear lobe of the wearer, which is not limited in this respect. The ear stem 120 is provided with a sound absorbing hole 121 communicating with the external environment, a tuning hole 122 communicating with the external environment, and a mounting cavity 123 communicating with the sound absorbing hole 121 and the tuning hole 122, wherein the sound absorbing hole 121 is used for transmitting the sound in the external environment to the mounting cavity 123, and the tuning hole 122 is used for keeping the air pressure in the mounting cavity 123 balanced with the air pressure in the external environment.

It should be noted that the sound absorbing hole 121 and the sound adjusting hole 122 are disposed at an interval in the extending direction of the ear stem 120, so that the sound absorbing hole 121 and the sound adjusting hole 122 are not located on the same plane, which is beneficial to balance the air pressure in the mounting cavity 123.

The noise reduction device is arranged in the installation cavity 123 and is right opposite to the sound absorption hole 121, the noise reduction device comprises a noise reduction microphone, a noise reduction loudspeaker and a circuit board, and the noise reduction microphone and the noise reduction loudspeaker are electrically connected with the circuit board.

Specifically, this device of making an uproar falls quantity is one, so can play the effect of making an uproar of falling, can guarantee again that the volume of ear handle portion can not increase. In addition, the number of the noise reduction devices may also be set to 2, 3, 4 … … N … …, where N is a positive integer greater than zero, and is not specifically limited herein.

In the use process of the noise reduction earphone 1000, the noise reduction microphone detects the low-frequency noise in the environment that the ear can hear, the circuit board generates the sound wave with the phase opposite to that of the low-frequency noise and the same amplitude as the low-frequency noise according to the low-frequency noise in the environment detected by the noise reduction microphone to cancel the noise, and the canceling noise is played from the noise reduction loudspeaker, so that the noise is filtered, clear audio signals are heard by a wearer, and the hearing enjoyment of the wearer is improved. Moreover, by providing the noise reduction device on the ear handle portion 120, the volume of the earplug portion 110 can be reduced, so as to improve the comfort of the user when the user wears the noise reduction earphone 1000.

Considering to fall the microphone of making an uproar, fall loudspeaker and the circuit board separately sets up among the device of making an uproar, it is inconvenient to fall the device of making an uproar and install in installation cavity 123, therefore, fall the device of making an uproar in order to make things convenient for the installation, in some embodiments of the utility model, please refer to fig. 1 and fig. 2, the device of should fall the noise still includes mount pad 200, the cavity formation is become to hold the chamber (not shown) in mount pad 200 is inside, fall the microphone of making an uproar, fall loudspeaker and the circuit board of making an uproar and all install in holding the intracavity, the chamber wall that holds the chamber is equipped with two through-holes (not shown), two through-holes correspond and inhale sound hole 121 and accent hole 122 intercommunication, so can realize falling the integrated setting of the device of making an uproar.

Furthermore, the noise reduction microphone is opposite to one end of the through hole far away from the sound absorption hole 121, so that noise in the external environment is transmitted to the noise reduction microphone through the sound absorption hole 121 and the through hole in sequence, and the noise reduction microphone is favorable for receiving the noise in the external environment.

Specifically, the mounting seat 200 includes a base and a cover fixedly connected to the base, a cavity is disposed on one side of the base facing the cover, and the cover is covered at a cavity end of the cavity to form an accommodating cavity. The base and the cover may be connected by a screw connection, a snap connection, and the like, which is not limited herein.

In addition, the accommodating cavity can also comprise two parts which are respectively arranged on the base and the cover body.

The noise reduction earphone 1000 further includes a pressing block 300 and a butting piece 400. The pressing block 300 is movably installed in the installation cavity 123, one end of the abutting piece 400 is connected with the cavity wall of the installation cavity 123, and the other end of the abutting piece 400 abuts against the pressing block 300, so that the pressing block 300 and the cavity wall of the corresponding position of the installation cavity 123 clamp the fixed installation seat 200 together, and the noise reduction device is convenient to install.

Specifically, the number of the abutting pieces 400 is one, so that the abutting pieces 400 are easily abutted. In addition, the number of the abutting pieces 400 can also be set to 2, 3 and 4 … … N … …, where N is a positive integer greater than zero and is not particularly limited herein.

Please refer to fig. 1, the earplug portion 110 is provided with an installation space 111, the installation space 111 is provided with a sound outlet (not shown), the installation cavity 123 is provided with a connecting channel 127 communicating with the installation space 111 near the cavity wall of the earplug portion 110, the cavity wall of the accommodating cavity is provided with a butt-joint channel (not shown) communicating with the connecting channel 127, and the installation space 111 of the earplug portion 110 is communicated with the noise reduction speaker, so as to implement the listening function of the noise reduction earphone 1000.

In some embodiments of the present invention, please refer to fig. 1 and 2, the supporting member 400 is an elastic member, the elastic member is installed between the supporting block 300 and the cavity wall of the installation cavity 123, and after the elastic member is compressed, the elastic member exerts an elastic supporting force on the supporting block 300 under the effect of its own resilience, so that the supporting block 300 and the cavity wall at the corresponding position of the installation cavity 123 can be clamped and fixed to the installation seat 200 together.

Specifically, the elastic part is set as a spring, and the spring is directly purchased from the market and is convenient to assemble. In addition, the elastic element can also be a spring sheet, a spring block or the like.

Further, a guide hole 124 is arranged through the wall of the installation cavity 123; one side of the abutting block 300 back to the mounting base 200 is provided with a guide rod 310, the guide rod 310 and the guide hole 124 are in alignment setting, one end of the guide rod 310, which is far away from the abutting block 300, extends into the guide hole 124, one end of the guide rod 310, which is far away from the abutting block 300, can also slide in the guide hole 124 along the extending direction of the ear stem part 120, the spring sleeve is arranged on the guide rod 310, so that the spring can be elastically deformed in the process, and the spring is prevented from shaking.

There are many types of the above-mentioned abutting members 400, and in another embodiment of the present invention, referring to fig. 3, a threaded hole 125 is formed through the wall of the mounting cavity 123. The abutting piece 400 is a screw-threaded piece, one end of the screw-threaded piece is screwed with the threaded hole 125, and the other end of the screw-threaded piece abuts against one side of the abutting block 300, which is back to the mounting base 200, so that the abutting block 300 and the cavity wall at the corresponding position of the mounting cavity 123 can clamp and fix the mounting base 200 together.

The screw may be a bolt, a screw, or the like, and is not particularly limited herein. This screw joint spare can be established to the bolt, and the bolt includes screw thread portion and spacing portion, and screw hole 125 includes screw thread section and spacing section, and the one end and the screw hole 125 screw thread of screw thread portion connect soon, and the other end and the one side looks butt of the back to mount pad 200 of the briquetting 300 of screw thread portion, spacing portion and screw thread portion fixed connection, spacing portion still with spacing section cooperation. The screw can be a screw, and an inner hexagonal groove is formed in one end, far away from the pressing block 300, of the screw, so that the screw is convenient to screw.

Further, installation cavity 123 is long banding setting, and mount pad 200 is in installation cavity 123 along the extending direction sliding connection of installation cavity 123, so carry out the in-process that supports through supporting piece 400 pair supporting piece 300, can promote mount pad 200 and slide along installation cavity 123, until mount pad 200 slide to be close to the chamber wall looks butt of earplug portion 110 with installation cavity 123, then can't promote mount pad 200 and slide along installation cavity 123, so conveniently judge whether mount pad 200 slides to the chamber wall looks butt with installation cavity 123.

In order to facilitate the installation of the noise reduction device into the mounting cavity 123, in some embodiments of the present invention, please refer to fig. 3, the mounting cavity 123 extends along the extending direction of the ear stem portion 120, and the pressing block 300 and the mounting cavity 123 close to the cavity wall of the earplug portion 110 together clamp the fixing mounting seat 200; the mounting cavity 123 is arranged far away from the cavity wall of the earplug part 110 in a penetrating manner and forms a mounting opening; the mounting opening is connected with an end cover 126 through threads, and one end of the abutting piece 400 far away from the abutting block 300 is connected with the end cover 126.

Specifically, the inner wall of the mounting opening is provided with an internal thread, the end cover 126 comprises a first section with a smaller outer diameter and a second section with a larger outer diameter, the outer wall of the first section is provided with an external thread screwed with the internal thread, and the second section covers one side of the mounting opening away from the pressing block 300.

When the noise reduction device is installed, firstly, the installation base 200 is placed into the installation cavity 123 from the installation opening, and the installation base 200 is abutted against the cavity wall of the installation cavity 123 close to the earplug part 110; then, the pressing block 300 is placed into the mounting cavity 123 from the mounting opening, and the pressing block 300 is abutted to the mounting base 200; then, the abutting piece 400 is placed in the installation cavity 123 and abuts against one side of the abutting piece 300, which faces away from the ear plug portion 110, and then the end cover 126 is screwed to the installation opening and connected with one end of the abutting piece 400, which is far away from the abutting piece 300, so that the abutting piece 300 and the cavity wall at the corresponding position of the installation cavity 123 clamp and fix the installation seat 200 together, and thus the installation of the noise reduction device can be completed.

When the noise reduction device is disassembled, the end cover 126 is firstly screwed off from the mounting opening, then the abutting piece 400 and the abutting block 300 are sequentially taken out from the mounting cavity 123, and then the noise reduction device can be taken out from the mounting cavity 123.

Further, one side of the mounting base 200, which faces away from the pressing block 300, is provided with a positioning block 210, and a positioning groove matched with the positioning block 210 is formed in the wall of the mounting cavity 123, so that the mounting base 200 is conveniently positioned.

Specifically, this locating piece 210's quantity is one, and a locating piece 210 is located the middle part of mount pad 200 one side of the back to the briquetting 300, and the constant head tank sets up for locating piece 210 looks adaptation, so can guarantee the stability when mount pad 200 fixes a position.

Considering that the abutting of the abutting block 300 directly contacts with the mounting base 200, the interaction force is large, and may extrude the noise reduction microphone, the noise reduction speaker and the circuit board in the mounting base 200, and further influence the normal operation of the noise reduction microphone, the noise reduction speaker and the circuit board, therefore, in order to prevent the abutting of the abutting block 300 and the mounting base 200, the noise reduction microphone, the noise reduction speaker and the circuit board in the mounting base 200 may be extruded, in some embodiments of the present invention, please refer to fig. 3, one side of the abutting block 300 facing the mounting base 200 is provided with the flexible layer 320, so that the force applied by the abutting block 300 to the mounting base 200 can be buffered, and thus the extrusion of the noise reduction microphone, the noise reduction speaker and the circuit board in the mounting base 200 is prevented.

The flexible layer 320 may be a rubber layer, a foam layer, a silicone layer, etc., and is not particularly limited herein. The flexible layer 320 and the pressing block 300 may be fixed by a clamping manner, the flexible layer 320 and the pressing block 300 may also be fixed by glue or double-sided adhesive, and the like, which is not limited herein.

In view of the limited noise reduction effect of the noise reducer, in order to further reduce noise, in some embodiments of the present invention, please refer to fig. 3, a sound-absorbing cotton (not shown) is further disposed in the accommodating cavity, and the sound-absorbing cotton can absorb noise transmitted to the ear stem 120.

The sound-absorbing cotton may be glass fiber sound-absorbing cotton, or polyester fiber sound-absorbing cotton, etc., and is not limited herein.

The sound-absorbing cotton can be abutted with the noise-reducing microphone, the sound-absorbing cotton can also be abutted with the noise-reducing microphone, and the sound-absorbing cotton can also be abutted with the circuit board, which is not specifically limited herein.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A noise reducing headset, comprising:

2. The noise reduction earphone according to claim 1, wherein the noise reduction device further comprises a mounting seat, the mounting seat is hollow to form a containing cavity, the noise reduction microphone, the noise reduction speaker and the circuit board are all mounted in the containing cavity, the cavity wall of the containing cavity is provided with two through holes, and the two through holes are correspondingly communicated with the sound absorption hole and the sound adjustment hole;

3. The noise reduction earphone according to claim 2, wherein a positioning block is disposed on a side of the mounting base opposite to the pressing block, and a positioning groove matched with the positioning block is disposed on a wall of the mounting cavity.

4. The noise reduction earphone according to claim 2, wherein a threaded hole is formed through the wall of the mounting cavity;

5. The noise reduction earphone according to claim 2 wherein the abutting member is an elastic member, and the elastic member is installed between the abutting block and the wall of the installation cavity to apply an elastic supporting force to the abutting block.

6. The noise reduction earphone according to claim 5, wherein a guide hole is formed through the wall of the mounting cavity;

the elastic piece is a spring, and the spring is sleeved on the guide rod.

7. A noise reducing earphone as claimed in claim 4 or 5, wherein the mounting cavity extends in the direction of extension of the shank portion, and the mounting block is slidably connected in the mounting cavity in the direction of extension of the mounting cavity.

8. The noise reduction earphone according to claim 2, wherein the mounting cavity extends along the extension direction of the ear stem part, and the pressing block and the cavity wall of the mounting cavity close to the earplug part together clamp and fix the mounting seat;

9. The noise reducing earphone according to claim 2, wherein the receiving cavity is further provided with sound absorbing cotton.

10. Noise reducing headphones according to claim 2, characterized in that the side of the press-on block facing the mount is provided with a flexible layer.