CN210202054U

CN210202054U - Tuning structure of earphone and in-ear earphone

Info

Publication number: CN210202054U
Application number: CN201921405864.6U
Authority: CN
Inventors: Wenming Zhao; 赵文明; Xiangquan Meng; 孟祥全; Li Wang; 王丽
Original assignee: Shenzhen Horn Audio Co Ltd
Current assignee: Shenzhen Horn Audio Co Ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-03-27
Anticipated expiration: 2029-08-27

Abstract

The utility model provides a tuning structure of an earphone and an in-ear earphone, wherein the tuning structure of the earphone comprises a horn cover, a horn and a rubber sleeve; the horn cover is provided with a mounting cavity; the horn is arranged in the mounting cavity to divide the mounting cavity into a front horn cavity and a rear horn cavity which are arranged in the front and at the back, the front horn cavity is open towards the ear, and the rear horn cavity is positioned on one side of the horn, which is far away from the ear; the rubber sleeve is sleeved on the horn cover and is provided with an annular inner skirt edge connected with the horn cover, and the annular inner skirt edge and the outer side surface of the horn cover jointly form a pressure relief and sound adjustment hole used for communicating the horn front cavity with the outside. The technical scheme of the utility model can reach the effect that reduces loudspeaker antechamber pressure and adjust tone quality simultaneously.

Description

Tuning structure of earphone and in-ear earphone

Technical Field

The utility model belongs to the technical field of the earphone, especially, relate to a tuning structure and in-ear earphone of earphone.

Background

In current in-ear earphone, for guaranteeing earphone curve uniformity, it is totally sealed through the mode of gluing between the loudspeaker of earphone and the loudspeaker lid, so when the in-ear earphone worn the human ear, because the leakproofness of silica gel cover and human ear, can produce a pressure that is higher than normal atmospheric pressure in the loudspeaker antechamber (be the preceding cavity between the ear of loudspeaker), thus, the airtight of loudspeaker antechamber can lead to loudspeaker vibrating diaphragm to receive atmospheric pressure sunken, thereby probably influence the loudspeaker life-span, and the in-ear earphone leakproofness is too good still can lead to the user can not hear external sound when the open air uses, reduce the reaction to external environment, and then there is certain personal safety hidden danger.

To solve this problem, the existing in-ear earphone can be solved by opening a small hole, i.e. a low-frequency leakage hole, in the front cavity of the speaker. However, the design of the in-ear earphone is more and more miniaturized and multifunctional, and the requirement of the consumer on the appearance of the earphone product is higher, so that the requirement on the aspects of volume limitation, good appearance and the like is met, and a low-frequency leakage hole is not allowed to be formed on the front cavity of the loudspeaker so as not to influence the appearance and the waterproof performance. And if the cavity does not open the low frequency and lets out the leakage hole before the loudspeaker of in-ear earphone, then the eardrum has very strong oppression sense when wearing, and the low frequency too much can influence the tone quality definition, and long-time listening can make the people dizziness to user in use also probably can be kept off by debris and block up the leakage hole of low frequency, thereby causes the change of tone quality, influences user experience.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a tuning structure of earphone, it aims at reaching simultaneously and reduces the purpose of loudspeaker antechamber pressure and regulation tone quality.

The utility model discloses a realize like this: a tuning structure for a headset, comprising:

a horn cover having a mounting cavity;

the horn is arranged in the mounting cavity to divide the mounting cavity into a front horn cavity and a rear horn cavity which are arranged in the front and at the back, the front horn cavity is open towards the ear, and the rear horn cavity is positioned on one side of the horn, which is far away from the ear; and the number of the first and second groups,

and the rubber sleeve is sleeved on the horn cover and is provided with an annular inner skirt edge connected with the horn cover, and the annular inner skirt edge and the outer side surface of the horn cover jointly form a pressure relief and sound adjustment hole for communicating the horn front cavity with the outside.

Optionally, the horn cover is divided into a front cover section and a rear cover section which are arranged in the front and at the back, the front cover section is in sleeve joint with the annular inner skirt, the horn cover is arranged on the outer side surface of the horn cover and provided with a pressure relief tuning groove which is arranged by extending from front to back, the pressure relief tuning groove is divided into a front section groove arranged on the front cover section and a rear end groove arranged on the rear cover section, the front section groove is communicated with the rear end of the front cover section, and the groove wall and the groove bottom of the front section groove and the inner ring surface of the annular inner skirt jointly form the pressure relief tuning hole.

Optionally, the length extending direction of the pressure relief tuning groove is consistent with the axial direction of the horn cover.

Optionally, a limiting convex ring is formed on the outer side surface of the horn cover in a protruding manner along the radial direction, the rear end edge of the annular inner skirt is abutted to the limiting convex ring, and the pressure relief tuning groove extends to the rear side surface penetrating through the limiting convex ring.

Optionally, a through groove extending in the radial direction and opening outwards is further formed in the limiting convex ring, and the through groove is communicated with the pressure relief tuning groove.

Optionally, the number of the pressure relief tuning grooves is multiple, and the pressure relief tuning grooves are distributed at intervals along the circumferential direction.

Optionally, the pressure relief tuning groove has a groove depth in the radial direction of 0.02mm to 0.5 mm.

Optionally, the outer side surface of the horn is in sealing connection with the inner wall surface of the mounting cavity.

Optionally, a mounting flange is convexly disposed on an inner wall surface of the mounting cavity, the mounting flange being adjacent to the front cavity of the horn, and a front end surface of the horn abuts against a rear end surface of the mounting flange.

The utility model discloses still provide an in-ear earphone, this in-ear earphone includes as before the tuning structure of earphone. The tuning structure of the earphone comprises a horn cover, a horn, a rubber sleeve and a pressure relief tuning part; the horn cover is provided with a mounting cavity; the loudspeaker is arranged in the mounting cavity to divide the mounting cavity into a front loudspeaker cavity and a rear loudspeaker cavity, the front loudspeaker cavity is open towards the ear, and the rear loudspeaker cavity is positioned on one side of the loudspeaker, which is far away from the ear; the rubber sleeve is sleeved on the horn cover and is provided with an annular inner skirt edge connected with the horn cover; and the pressure relief and tone modulation part is arranged between the outer side surface of the horn cover and the annular inner skirt edge to communicate the horn front cavity with the outside.

Based on the structural design, in the technical scheme of the utility model, because be equipped with the pressure release sound adjusting hole that communicates loudspeaker front chamber and external world between the lateral surface of loudspeaker lid and the annular inner skirt border of gum cover, so when the in-ear earphone wears the human ear, the produced pressure that is higher than normal atmospheric pressure in its loudspeaker front chamber just can reduce to balanced with external normal atmospheric pressure through this pressure release sound adjusting hole, thus, too much low frequency sound wave that makes people uncomfortable also can significantly reduce, thereby not only be favorable to protecting the vibrating diaphragm of loudspeaker, and the reduction of low frequency can also improve the tone quality definition, and then effectively promote tone quality; in conclusion, this tuning structure of earphone can reach the purpose that reduces loudspeaker front chamber pressure and adjust tone quality simultaneously, can effectively improve user experience.

Drawings

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

Fig. 1 is a schematic structural diagram of an in-ear headphone according to an embodiment of the present invention;

fig. 2 is a right side view of an in-ear headphone provided by an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view taken along the direction S-S in FIG. 2;

fig. 4 is an exploded view of an in-ear headphone according to an embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Horn cover	200	Horn type loudspeaker
310	Front cavity of horn	320	Rear cavity of loudspeaker
				400	Rubber sleeve	410	Annular inner skirt
500	Pressure relief sound adjusting hole	110	Front cover segment
				120	Rear cover segment	510	Pressure relief tuning groove
130	Limiting convex ring	131	Through groove
				140	Mounting flange

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

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 should be further noted that the terms of left, right, up and down directions in the embodiments of the present invention are only relative concepts or reference to the normal use status of the product, and should not be considered as having the limitation 131

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner" and "outer" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

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 invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The embodiment of the utility model provides a tuning structure of earphone and in-ear earphone who has the tuning structure of this earphone.

Referring to fig. 1, 3 and 4, the tuning structure of the earphone includes a speaker cover 100, a speaker 200, a rubber sleeve 400 and a pressure relief tuning hole 500; the bell cover 100 has a mounting cavity; the horn 200 is arranged in the mounting cavity to divide the mounting cavity into a front horn cavity 310 and a rear horn cavity 320 which are arranged in a front-back mode, the front horn cavity 310 is open towards the ear, and the rear horn cavity 320 is located on one side, away from the ear, of the horn 200; the rubber sleeve 400 is sleeved on the horn cover 100 and has an annular inner skirt 410 connected with the horn cover 100, and the annular inner skirt 410 and the outer side surface of the horn cover 100 together form a pressure relief sound adjusting hole 500 for communicating the horn front cavity 310 with the outside.

It should be noted that the tuning structure of the earphone is particularly suitable for an in-ear earphone, and of course, other types of earphones with suitable structural conditions may also be suitable for the tuning structure of the earphone. In the existing in-ear earphone, in order to ensure the curve consistency of the earphone, the space between the loudspeaker 200 and the loudspeaker cover 100 of the earphone is completely sealed in a dispensing manner, so when the in-ear earphone is worn on the ear of a person, because of the sealing performance of the silica gel sleeve 400 and the ear of the person, a pressure higher than the normal atmospheric pressure is generated in the front cavity 310 of the loudspeaker (namely, a cavity between the front surface of the loudspeaker 200 and the ear), thus, the sealing of the front cavity 310 of the loudspeaker can cause the diaphragm of the loudspeaker 200 to be depressed by the pressure of the air pressure, the service life of the loudspeaker 200 can be influenced, the eardrum can have strong oppression when worn, the tone quality definition can be influenced by too much low frequency, and people can feel dizzy after long-; in addition, the too good leakproofness of in-ear earphone still can lead to the user can not hear external sound when using in the open air, reduces the reaction to external environment, and then has certain personal safety hidden danger. In response to this problem, the conventional in-ear earphone can be solved by forming a small hole, i.e. a low frequency leak hole, in the front cavity 310 of the speaker. However, the design of today's in-ear headphones tends to be more and more miniaturized and multifunctional, and the requirement of consumers on the appearance of headphone products is also more and more high, so the requirement on the aspects of volume limitation, good appearance and the like is met, a low-frequency leakage hole is not allowed to be formed on the front cavity 310 of the speaker so as not to affect the appearance and the waterproof performance, and a user may be blocked by impurities in use so as to block the low-frequency leakage hole, thereby causing the change of sound quality and affecting the user experience.

Based on the structural design, in the technical scheme of the utility model, because the pressure relief sound adjusting hole 500 communicating the front speaker cavity 310 with the outside is arranged between the outer side surface of the speaker cover 100 and the annular inner skirt edge 410 of the rubber sleeve 400, when the ear-in earphone is worn on the ear of a person, the pressure higher than the normal atmospheric pressure generated in the front speaker cavity 310 can be reduced to be balanced with the normal atmospheric pressure of the outside through the pressure relief sound adjusting hole 500, thus, too many low-frequency sound waves causing discomfort can be greatly reduced, thereby not only being beneficial to protecting the vibrating diaphragm of the speaker 200, but also improving the sound quality definition due to the reduction of the low frequency, and further effectively improving the sound quality; to sum up, this tuning structure of earphone can reach the purpose that reduces loudspeaker antechamber 310 pressure and adjust tone quality simultaneously, can effectively improve user experience.

Specifically, referring to fig. 2 to 3, in the present embodiment, the horn cover 100 is divided into a front cover section 110 and a rear cover section 120 which are arranged front and rear, the front cover section 110 is in sleeve fit with the annular inner skirt 410, the horn cover 100 is arranged on the outer side surface thereof and is provided with a pressure relief tuning groove 510 which extends from front to rear, the pressure relief tuning groove 510 is divided into a front groove arranged on the front cover section 110 and a rear groove arranged on the rear cover section 120, the front groove runs through from the front section of the front cover section 110 to the rear end of the front cover section 110, and the groove wall and the groove bottom of the front groove together form a pressure relief tuning hole 500 together with the inner ring surface of the annular inner skirt 410. Thus, the air pressure balance and the low frequency leakage between the front cavity 310 of the horn and the outside can be realized by the pressure relief sound adjusting hole 500.

Further, as shown in fig. 3 and 4, in the present embodiment, the length extending direction of the pressure-releasing tuning groove 510 is the same as the axial direction of the horn cover 100, that is, the pressure-releasing tuning groove 510 is designed in a straight line type with the simplest structure, so as to facilitate the manufacturing and molding. Of course, in other embodiments, the pressure relief tuning groove 510 may be curved or have other shapes.

Further, referring to fig. 4, in the present embodiment, a limiting convex ring 130 is formed on the outer side surface of the horn cover 100 and protrudes outward in the radial direction, the rear end edge of the annular inner skirt 410 abuts against the limiting convex ring 130, and the pressure relief sound tuning groove 510 extends to penetrate through the rear side surface of the limiting convex ring 130. Here, the limit protrusion ring 130 mainly plays a role of limiting the installation of the rubber sleeve 400, so as to prevent the rubber sleeve 400 from being damaged due to shielding the pressure relief sound adjusting hole 500 when moving backward.

Further, referring to fig. 3 and 4, in the present embodiment, the limiting convex ring 130 is further provided with a through groove 131 extending in the radial direction and being open to the outside, and the through groove 131 is communicated with the pressure relief and tuning groove 510. It can be understood that, after the through groove 131 is communicated with the pressure relief tuning groove 510, the opening volume of the opening behind the pressure relief tuning groove 510 can be effectively increased, so that the air pressure balance and the low-frequency leakage performance of the pressure relief tuning hole 500 are enhanced, and the tone quality of the earphone is further improved.

Further, as shown in fig. 4, in the present embodiment, in order to further enhance the air pressure balance and the low-frequency leakage performance, the number of the pressure-relief tuning grooves 510 is plural, and the plural pressure-relief tuning grooves 510 are circumferentially spaced. Specifically, the quantity of pressure release tuning groove 510 is four, and four pressure release tuning grooves 510 are along the even interval distribution of circumference, so, can make pressure distribution more even, be favorable to further improving the tone quality of earphone.

It should be noted that, in the present embodiment, the groove depth of the pressure relief tuning groove 510 along the radial direction is preferably 0.02mm to 0.5mm, and may be further preferably 0.3mm, so that a good tuning effect can be obtained. Furthermore, in the technical solution of the present invention, the width and depth of the pressure-releasing tuning groove 510 can be changed to adjust the height of the low-frequency portion of the curve of the speaker 200.

In addition, as shown in fig. 3, in the present embodiment, the outer side surface of the horn 200 is hermetically connected to the inner wall surface of the mounting cavity. Specifically, the horn 200 and the horn cover 100 are hermetically connected by dispensing, but in other embodiments, the horn 200 and the horn cover may be hermetically connected by, but not limited to, ultrasonic welding.

Referring to fig. 3, in the present embodiment, a mounting flange 140 is protruded from an inner wall surface of the mounting cavity adjacent to the horn front cavity 310, and a front end surface of the horn 200 abuts against a rear end surface of the mounting flange 140. It will be appreciated that the provision of the mounting flange 140 facilitates ease of locating the mounting of the horn 200.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. A tuning structure for a headphone, comprising:

a horn cover having a mounting cavity;

2. The tuning structure of an earphone according to claim 1, wherein the speaker cover is divided into a front cover section and a rear cover section which are arranged in front and rear, the front cover section is in sleeve fit with the annular inner skirt, the speaker cover is provided with a pressure-releasing tuning groove which is arranged on an outer side surface of the speaker cover and extends from front to rear, the pressure-releasing tuning groove is divided into a front groove arranged on the front cover section and a rear groove arranged on the rear cover section, the front groove penetrates from a front section of the front cover section to a rear end of the front cover section, and a groove wall and a groove bottom of the front groove and the inner ring surface of the annular inner skirt together form the pressure-releasing tuning hole.

3. The tuning structure of earphones according to claim 2, wherein the length extension direction of the pressure relief tuning groove is in line with the axial direction of the horn cover.

4. The tuning structure of the earphone according to claim 2, wherein a limiting convex ring is formed on the outer side surface of the horn cover in a protruding manner in the radial direction, the rear end edge of the annular inner skirt abuts against the limiting convex ring, and the pressure relief tuning groove extends to penetrate through the rear side surface of the limiting convex ring.

5. The tuning structure of the earphone according to claim 4, wherein the limiting convex ring is further provided with a through groove which extends along the radial direction and is open outwards, and the through groove is communicated with the pressure relief tuning groove.

6. The tuning structure of an earphone according to claim 2, wherein the number of the pressure relief tuning grooves is plural, and the plural pressure relief tuning grooves are circumferentially spaced.

7. The tuning structure of earphones according to claim 2, wherein the pressure relief tuning groove has a groove depth in the radial direction of 0.02mm to 0.5 mm.

8. The tuning structure of an earphone according to any one of claims 1 to 7, wherein an outer side surface of the horn is sealingly connected to an inner wall surface of the mounting cavity.

9. The tuning structure of an earphone according to claim 8, wherein a mounting flange is protruded on an inner wall surface of the mounting cavity adjacent to the front cavity of the horn, and a front end surface of the horn abuts against a rear end surface of the mounting flange.

10. An in-ear headphone comprising a tuning structure of the headphone of any one of claims 1 to 9.