CN213028473U - Noise reduction earphone - Google Patents
Noise reduction earphone Download PDFInfo
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- CN213028473U CN213028473U CN202021525018.0U CN202021525018U CN213028473U CN 213028473 U CN213028473 U CN 213028473U CN 202021525018 U CN202021525018 U CN 202021525018U CN 213028473 U CN213028473 U CN 213028473U
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- air
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- 230000009467 reduction Effects 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
- 210000005069 ears Anatomy 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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Abstract
The application discloses a noise reduction earphone which comprises a front cover, earmuffs arranged on one side of the front cover, a loudspeaker arranged on the other side of the front cover, and a rear cover arranged on the front cover and covering the loudspeaker; the front cover is provided with a plurality of air leakage through holes which are positioned on the same circumference; the circle center of the circumference where the plurality of air leakage through holes are located is the same as the center of the horn. The earmuff is used for contacting with the ear, and after the earphone contacts with the ear, the air in the space enclosed by the earmuff and the front cover can be discharged through the air leakage through hole. Because the front cover is provided with a plurality of air leakage through holes which are positioned on the same circumference; the centre of a circle of the circumference at a plurality of disappointing through-holes place is the same with the center of loudspeaker, therefore the air can not flow along single direction, but discharges through the disappointing through-hole of nearest, and is less to earphone tone quality's influence.
Description
Technical Field
The application relates to the field of earphones, in particular to a noise reduction earphone.
Background
When the earphone is worn, the ear muffs are tightly attached to the ears, so that the earphone and the skin of a person form a closed space. When the horn vibrates, the air pressure in the closed space changes, and noise and the like are easy to happen.
In the prior art, a single air release hole communicated with a front cavity is usually formed in a front cover of the earphone, but the single air release hole can only be located at the edge of a horn, so that air flows to a single direction when the front cavity is exhausted, and the tone quality of the earphone is easily influenced.
SUMMERY OF THE UTILITY MODEL
An object of the application is to provide a noise reduction earphone aims at solving prior art, and the setting in disappointing hole influences the great problem of earphone tone quality.
To achieve the purpose, the embodiment of the application adopts the following technical scheme:
the noise reduction earphone comprises a front cover, earmuffs arranged on one side of the front cover, a loudspeaker arranged on the other side of the front cover, and a rear cover which is arranged on the front cover and covers the loudspeaker; the front cover is provided with a plurality of air leakage through holes, and the air leakage through holes are positioned on the same circumference; the circle center of the circumference where the air leakage through holes are located is the same as the center of the horn.
In one embodiment, the number of the air leakage through holes is four; the four air leakage through holes comprise a first air leakage hole, a second air leakage hole, a third air leakage hole and a fourth air leakage hole which are sequentially arranged; the included angle of the first air release hole and the second air release hole on the circumference is equal to the included angle of the third air release hole and the fourth air release hole on the circumference; and the included angle of the second air release hole and the third air release hole on the circumference is equal to the included angle of the fourth air release hole and the first air release hole on the circumference.
In one embodiment, the included angle between the first air release hole and the second air release hole on the circumference is 30 degrees; the third air release hole and the fourth air release hole form an included angle of 30 degrees on the circumference; the second air release hole and the third air release hole form an included angle of 150 degrees on the circumference; and the included angle between the fourth air release hole and the first air release hole on the circumference is 150 degrees.
In one embodiment, the horn is circular in shape; the circle center of the horn is the same as that of the circumference where the air leakage through holes are located.
In one embodiment, the rear cover and the front cover enclose a closed cavity; the horn is positioned in the closed cavity, and the air leakage through hole is communicated with the closed cavity; the rear cover is provided with a first air outlet hole which is communicated with the closed cavity.
In one embodiment, the rear cover is further provided with a second air outlet hole, and the second air outlet hole is communicated with the closed cavity; the cross-sectional area of the second air outlet is larger than that of the first air outlet; and the rear cover is provided with tuning paper for sealing the second air outlet hole.
In one embodiment, the cross-sectional area of the second outlet aperture is more than five times the cross-sectional area of the first outlet aperture.
In one embodiment, the noise reducing headset further comprises a housing detachably connected with the front cover and covering the rear cover.
In one embodiment, the ear cup is a sponge cup.
In one embodiment, the noise reducing headphone further comprises a noise reducing microphone mounted to the back cover.
The beneficial effects of the embodiment of the application are as follows: the earmuff is used for contacting with the ear, and after the earphone contacts with the ear, the air in the space enclosed by the earmuff and the front cover can be discharged through the air leakage through hole. Because the front cover is provided with a plurality of air leakage through holes which are positioned on the same circumference; it is a plurality of the centre of a circle of the circumference at disappointing through-hole place with the center of loudspeaker is the same, and consequently the air can not flow along single direction, but discharges through the disappointing through-hole of nearest, and is less to earphone tone quality's influence.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a noise reduction headphone in an embodiment of the present application;
fig. 2 is a schematic diagram of an internal structure of the noise reduction headphone in fig. 1;
FIG. 3 is an exploded view of the noise reducing earphone of FIG. 1;
FIG. 4 is a schematic structural diagram of a front cover in an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a rear cover in an embodiment of the present application;
in the figure:
1. a front cover; 101. a venting through hole; 1011. a first air escape hole; 1012. a second air escape hole; 1013. a third air release hole; 1014. a fourth air release hole;
2. ear muffs;
3. a horn;
4. a rear cover; 401. a first air outlet hole; 402. a second air outlet;
5. a closed cavity; 6. tone tuning paper; 7. a housing; 8. and (5) reducing the noise.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The following detailed description of implementations of the present application is provided in conjunction with specific embodiments.
As shown in fig. 1-3, the embodiment of the present application provides a noise reduction earphone, which includes a front cover 1, an earmuff 2 mounted on one side of the front cover 1, a speaker 3 mounted on the other side of the front cover 1, and a rear cover 4 mounted on the front cover 1 and covering the speaker 3; a plurality of air leakage through holes 101 are formed in the front cover 1, and the air leakage through holes 101 are positioned on the same circumference; the circle center of the circle where the plurality of air leakage through holes 101 are located is the same as the center of the horn 3.
In the embodiment of the present application, the ear muffs 2 are used for contacting with ears, and after the earphone contacts with the ears, the air in the space enclosed by the ear muffs 2 and the front cover 1 can be discharged through the air leakage through hole 101. Because the front cover 1 is provided with a plurality of air leakage through holes 101, the air leakage through holes 101 are positioned on the same circumference; the circle center of the circumference where the plurality of air leakage through holes 101 are located is the same as the center of the loudspeaker 3, so that the air does not flow along a single direction, but is discharged through the air leakage through hole 101 at the nearest position, and the influence on the sound quality of the earphone is small.
Referring to fig. 4, as another embodiment of the noise reduction earphone provided in the present application, the number of the air-escape through holes 101 is four; the four air release through holes 101 comprise a first air release hole 1011, a second air release hole 1012, a third air release hole 1013 and a fourth air release hole 1014 which are arranged in sequence; the circumferential included angle between the first air release hole 1011 and the second air release hole 1012 is equal to the circumferential included angle between the third air release hole 1013 and the fourth air release hole 1014; the circumferential angle between the second air release hole 1012 and the third air release hole 1013 is equal to the circumferential angle between the fourth air release hole 1014 and the first air release hole 1011.
Therefore, the first air release hole 1011 and the second air release hole 1012 are taken as a first whole, the third air release hole 1013 and the fourth air release hole 1014 are taken as a second whole, the two whole are also in a symmetrical state, the whole earphone approaches to a symmetrical structure, so that the earphone can pass through the two symmetrical positions by air, the air at each position is not easy to intersect, and the tone quality of the earphone is further reduced due to uneven and disordered air flow.
Referring to fig. 3-4, as another embodiment of the noise reduction earphone provided by the present application, an included angle between the first air release hole 1011 and the second air release hole 1012 on the circumference is 30 degrees; the included angle between the third air release hole 1013 and the fourth air release hole 1014 on the circumference is 30 degrees; the included angle between the second air leakage hole 1012 and the third air leakage hole 1013 on the circumference is 150 degrees; the fourth air release hole 1014 forms an angle of 150 degrees with the first air release hole 1011 on the circumference.
Therefore, the first whole body and the second whole body are respectively positioned at two opposite ends of the rectangle, and the appearance of the common earphone is close to the rectangle, so that the common earphone is suitable for the common earphone. Optionally, the air leakage through hole 101 may be a rectangular hole, or an arc-shaped surface may be disposed on an inner wall of the rectangular hole, so as to facilitate the passage of the air flow.
Referring to fig. 3-4, as another embodiment of the noise reduction earphone provided in the present application, the speaker 3 is circular; the center of the horn 3 is the same as the center of the circle where the plurality of air escape through holes 101 are located. The plurality of air leakage through holes 101 are circumferentially distributed by taking the circle center of the loudspeaker 3 as the circle center, so that the air flow passing through the air leakage through holes 101 is uniform everywhere, and the tone quality of the earphone is not easily influenced.
Referring to fig. 2, as another embodiment of the noise reduction earphone provided by the present application, a back cover 4 and a front cover 1 enclose to form a closed cavity 5; the horn 3 is positioned in the closed cavity 5, and the air leakage through hole 101 is communicated with the closed cavity 5; the rear cover 4 is provided with a first air outlet 401, and the first air outlet 401 is communicated with the closed cavity 5. After the air passing through the air leakage through hole 101 enters the closed cavity 5, the air is discharged outwards through the first air outlet hole 401, so that the air can flow out of the rear cover 4, the air pressure in the closed cavity 5 is not easy to be too high, and the follow-up air can continuously enter the closed cavity 5 through the air leakage through hole 101.
Referring to fig. 5, as another embodiment of the noise reduction earphone provided in the present application, the rear cover 4 is further provided with a second air outlet 402, and the second air outlet 402 is communicated with the closed cavity 5; the cross-sectional area of the second outlet hole 402 is larger than the cross-sectional area of the first outlet hole 401; and the back cover 4 is provided with a tuning paper 6 for closing the second air outlet hole 402. Air can leave the closed cavity 5 through the first air outlet hole 401 quickly (fast flow rate), and the air flow rate at the second air outlet hole 402 can be slower due to the arrangement of the tuning paper 6. Therefore, the first air outlet 401 can ensure that the air flow can instantly leave the closed cavity 5 (the second air outlet 402 is difficult to instantly discharge air through the tuning paper 6), but not too much leave the closed cavity 5, so that the air pressure change in the closed cavity 5 is smooth, and the tone quality is not easily influenced greatly.
Referring to fig. 5, as another specific embodiment of the noise reduction earphone provided by the present application, the cross-sectional area of the second outlet hole 402 of the second outlet hole is more than five times the cross-sectional area of the first outlet hole 401, that is, the cross-sectional area of the second outlet hole 402 is much larger than the cross-sectional area of the first outlet hole 401, and the second outlet hole 402 can ensure that enough air can be discharged in a unit time even when the air flow velocity is relatively low.
Referring to fig. 2, as another embodiment of the noise reduction earphone provided by the present application, the noise reduction earphone further includes a housing 7 detachably connected to the front cover 1 and covering the rear cover 4. The shell 7 can provide better protection for the components such as the rear cover 4, and the shell 7 is detachably connected with the front cover 1 so as to be convenient for maintaining the inside of the earphone.
Referring to the drawings, as another embodiment of the noise reduction earphone provided by the present application, the ear muffs 2 are sponge covers, which have certain flexibility and can ensure a better fit with ears.
Referring to fig. 3 and 5, as another embodiment of the noise reduction earphone provided by the present application, the noise reduction earphone further includes a noise reduction microphone 8 mounted on the back cover 4 for reducing noise.
It is to be understood that aspects of the present invention may be practiced otherwise than as specifically described.
It should be understood that the above examples are merely examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.
Claims (9)
1. The noise reduction earphone is characterized by comprising a front cover, earmuffs arranged on one side of the front cover, a loudspeaker arranged on the other side of the front cover, and a rear cover which is arranged on the front cover and covers the loudspeaker; the front cover is provided with a plurality of air leakage through holes, and the air leakage through holes are positioned on the same circumference; the circle center of the circumference where the plurality of air leakage through holes are located is the same as the center of the horn; the rear cover and the front cover enclose to form a closed cavity; the horn is positioned in the closed cavity, and the air leakage through hole is communicated with the closed cavity; the rear cover is provided with a first air outlet hole which is communicated with the closed cavity.
2. The noise reducing earphone according to claim 1, wherein the number of the air-bleed through holes is four; the four air leakage through holes comprise a first air leakage hole, a second air leakage hole, a third air leakage hole and a fourth air leakage hole which are sequentially arranged; the included angle of the first air release hole and the second air release hole on the circumference is equal to the included angle of the third air release hole and the fourth air release hole on the circumference; and the included angle of the second air release hole and the third air release hole on the circumference is equal to the included angle of the fourth air release hole and the first air release hole on the circumference.
3. The noise reduction earphone according to claim 2, wherein the first air release hole and the second air release hole form an angle of 30 degrees on the circumference; the third air release hole and the fourth air release hole form an included angle of 30 degrees on the circumference; the second air release hole and the third air release hole form an included angle of 150 degrees on the circumference; and the included angle between the fourth air release hole and the first air release hole on the circumference is 150 degrees.
4. A noise reducing earphone according to any of claims 1-3, wherein the horn is circular; the circle center of the horn is the same as that of the circumference where the air leakage through holes are located.
5. The noise reduction earphone according to claim 1, wherein the rear cover is further provided with a second air outlet hole, and the second air outlet hole is communicated with the closed cavity; the cross-sectional area of the second air outlet is larger than that of the first air outlet; and the rear cover is provided with tuning paper for sealing the second air outlet hole.
6. The noise reducing earphone according to claim 5 wherein the cross-sectional area of the second outlet hole is more than five times the cross-sectional area of the first outlet hole.
7. A noise reducing headset according to any of claims 1-3, further comprising a housing detachably connected to the front cover and covering the back cover.
8. A noise reducing headset according to any of claims 1-3, wherein the ear cup is a sponge cap.
9. A noise reducing headphone according to any of the claims 1-3 further comprising a noise reducing microphone mounted to the back cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021525018.0U CN213028473U (en) | 2020-07-28 | 2020-07-28 | Noise reduction earphone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021525018.0U CN213028473U (en) | 2020-07-28 | 2020-07-28 | Noise reduction earphone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213028473U true CN213028473U (en) | 2021-04-20 |
Family
ID=75461334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021525018.0U Active CN213028473U (en) | 2020-07-28 | 2020-07-28 | Noise reduction earphone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213028473U (en) |
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2020
- 2020-07-28 CN CN202021525018.0U patent/CN213028473U/en active Active
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