CN209861128U - In-ear earphone - Google Patents

Abstract

The utility model provides an in-ear earphone satisfies the requirement of letting out the sound, improves tone quality, and compares and let out the sound hole and need not to set up location structure, simple structure, easily realization before setting up among the prior art. The ear-in type earphone comprises an earshell, an earcap and a front guide pipe, wherein the earcap comprises a cylindrical sleeving part and an earcap main body, and the cylindrical sleeving part is sleeved on the front guide pipe in an interference manner so that the earcap is installed on the front guide pipe; the sound leakage structure for leaking sound is formed at the contact part of the ear muff and the front guide pipe, the sound leakage structure is a flocking surface formed on the inner wall of the cylindrical sleeving part, or the sound leakage structure is a concave-convex alternate structure formed on the inner wall of the cylindrical sleeving part and/or the outer wall of the front guide pipe. Let out the sound structure for forming the flocking face on the portion inner wall is established to the tube-shape cover, perhaps for forming the unsmooth alternate structure on portion inner wall is established to the tube-shape cover and/or the preceding pipe outer wall, compare prior art and set up preceding sound hole and correspond the scheme that sets up sound hole location structure, simple structure, easily realization on preceding pipe and earmuff.

Description

In-ear earphone

Technical Field

The utility model relates to an earphone field, concretely relates to in-ear earphone's institutional advancement.

Background

As the size of electronic products is made smaller and smaller, the design bottleneck of the in-ear type earphone occurs.

At present, most of in-ear earphones are provided with a loudspeaker arranged in an earshell, and a silica gel earmuff is clamped outside a front guide pipe at the front end of the earshell. In order to ensure that the ear cap is assembled firmly, the inner side of the ear cap is completely coupled with the outer side of the guide pipe under the general condition, sound is directly transmitted to the ear of a person through the ear cap pipeline after passing through the front guide pipe, the sound is not leaked to the outside, the middle-high frequency sound is not clear enough when the earphone sounds, and the low-frequency sound is dragged and crowded and is unclean and unclear.

In order to solve the above technical problems, a front sound venting hole is usually formed in the duct, and similarly, a front sound venting hole is also formed in the earmuff, so that the front sound venting hole and the front sound venting hole are aligned for use. The prior structure has the following problems: the front sound venting holes of the front guide pipe and the ear muffs are required to be aligned at any time when the earphone is used, and the silica gel ear muffs are made of soft materials and are easy to deform, so that the ear muffs are easily extruded to enable the front sound venting holes of the front guide pipe and the ear muffs to be staggered when the earphone is worn, and sound cannot be vented, so that the front sound venting holes of the front guide pipe and the ear muffs are required to be aligned at any time by additionally arranging a positioning design, the structure is complex, and the small-volume earphone such as an in-ear earphone is difficult to produce and process and high; in addition, the earmuff can directly see the front sound leakage hole in appearance, and the appearance is directly influenced.

Disclosure of Invention

The utility model provides an in-ear earphone satisfies the requirement of letting out the sound, improves tone quality, and compares and let out the sound hole and need not to set up location structure, simple structure, easily realization before setting up among the prior art.

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

an in-ear earphone comprises an earshell, an earmuff and a front guide pipe which is positioned at the front end of the earshell and communicated with the interior of the earshell, wherein the earmuff comprises an inner cylindrical sleeving part and an outer earmuff main body, and the cylindrical sleeving part is sleeved on the front guide pipe in an interference fit mode so that the earmuff is installed on the front guide pipe; the contact position of earmuff with preceding guide duct is formed with the sound structure that leaks that is used for leaking the sound, it is in to leak the sound structure be formed the flocking face on the tube-shape cover portion inner wall, perhaps, it is in to leak the sound structure to form tube-shape cover portion inner wall and/or unsmooth alternate structure on the front guide duct outer wall.

When the sound leakage structure is the concave-convex alternating structure, the depths of all concave parts are consistent or unequal.

When the sound leakage structure is a concave-convex alternate structure formed on the inner wall of the cylindrical sleeve part and the depth of all the concave parts is consistent, the depth of the concave parts is 1/5-1/3 of the wall thickness of the cylindrical sleeve part.

And the front guide pipe is provided with a sound leakage hole penetrating through the wall thickness of the front guide pipe at a part corresponding to at least part of the concave part of the sound leakage structure.

The rear end of the inner wall of the cylindrical sleeve part is provided with a convex buckle, the front guide pipe is correspondingly provided with a concave clamping groove, and the buckle is clamped in the clamping groove.

The buckle with all be equipped with on the outer wall of front conduit and be convenient for the guide inclined plane that the portion cover was established is established to the tube-shape cover.

Compared with the prior art, the utility model have following advantage and positive effect: form the sound structure that leaks that is used for leaking the sound through the contact site at earmuff and preceding pipe, let out partial sound, thereby reach adjustment sound, improve tone quality's purpose, and let out the sound structure for forming the flocking face on the portion inner wall is established to the tube-shape cover, perhaps for forming the unsmooth alternate structure on the portion inner wall is established to the tube-shape cover and/or preceding pipe outer wall, it leaks the sound hole and corresponds the scheme that sets up sound hole location structure before comparing prior art and setting up on pipe and earmuff in the front, moreover, the steam generator is simple in structure, and easy realization.

Drawings

Fig. 1 is a schematic view of an assembly structure of an earshell, a front conduit and an earmuff of the in-ear earphone of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is an enlarged view of the portion A of FIG. 1;

fig. 4 is an enlarged view of a portion B of fig. 3.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Because the utility model discloses in-ear earphone's improvement part only involves the preceding catheter on the concha and the institutional advancement at earmuff contact site, then only given the assembly department structure of concha, preceding catheter and earmuff in figure 1, other parts and the structure of in-ear earphone with prior art, do not have the repeated description. Referring to fig. 1 to 3, the in-ear earphone of the present embodiment includes an earmuff 10, an earmuff 20 and a front conduit 30 located at the front end of the earmuff 10 and communicated with the interior of the earmuff 10, wherein the earmuff 20 includes an inner cylindrical sleeve portion 21 and an outer earmuff main body 22, the cylindrical sleeve portion 21 is interference-fitted over the front conduit 30 so that the earmuff 20 is mounted on the front conduit 30; in order to improve the sound quality of the sound, so that the medium-high frequency sound is clear enough and the low frequency sound is clean and clear, a part of the sound needs to be leaked outside before the sound enters the ears of a person after being transmitted out through the front guide tube 30, which is called sound leakage in the industry, and the sound leakage is realized by forming a sound leakage structure 40 for the sound leakage at the contact part of the earmuff 20 and the front guide tube 30. Unlike the prior art, the sound-leaking structure 40 in this embodiment is a flocked surface formed on the inner wall of the cylindrical sleeve portion 21, as shown in fig. 2; alternatively, the sound attenuating structure 40 may be an alternate concavo-convex structure formed on the inner wall of the cylindrical cover portion 21 and/or the outer wall of the front duct 30, as shown in fig. 3 and 4.

When the cylindrical sheathing part 21 and the front duct 30 are in interference sheathing, the flocked surface can enable the cylindrical sheathing part 21 and the front duct 30 to directly have a certain gap, and the gap still cannot enable the free rotation degree of the ear muffs 20 and the front duct 30, but the fine gap can enable sound (air flow) to be discharged, so that the purpose of adjusting the sound is achieved.

When the sound releasing structure 40 is a concave-convex alternate structure formed on the inner wall of the tubular sleeve portion 21 and/or the outer wall of the front duct 30, when the tubular sleeve portion 21 is sleeved with the front duct 30 in an interference manner, the gap of the concave portion 41 of the concave-convex alternate structure can play a role of conducting air flow, which is equivalent to increase the fit clearance between the tubular sleeve portion 21 and the front duct 30, so as to facilitate the sound (air flow) to be released, thereby achieving the purpose of adjusting sound, and the convex portion 42 thereof ensures enough friction force between the tubular sleeve portion 21 and the front duct 30 to achieve the degree that the earmuff and the duct cannot rotate freely.

Further, when the sound attenuating structure 40 has the above-described concave-convex alternating structure, the depth of all the concave portions 41 may be uniform or different, as shown in fig. 3 and 4. For convenience of processing, it is preferable that the depth is uniform.

Preferably, the sound leakage structure 40 is a concave-convex structure formed on the inner wall of the cylindrical sleeve portion 21, the processing is convenient, and when the depth of all the concave portions 41 is consistent, the depth of the concave portion 41 is preferably 1/5-1/3 of the wall thickness of the cylindrical sleeve portion 21. Generally, the thickness of the ear cap 20 is generally 1.2-2mm, the wall thickness of the cylindrical cap portion 21 is generally 1.2-2mm, and the depth of the recess 41 is generally about 0.3-0.5 mm. Of course, the sound leakage structure 40 may be provided only at a portion of the outer wall of the front duct 30 that contacts the cylindrical sleeve portion 21, or the sound leakage structure 40 may be provided on both the inner wall of the cylindrical sleeve portion 21 and the outer wall of the front duct 30, which is not particularly limited herein.

To further enhance the sound attenuating effect, the front duct 30 is provided with sound attenuating holes 31 penetrating the wall thickness of the front duct 30 at a portion corresponding to at least a part of the concave portion 41 of the sound attenuating structure 40, as shown in fig. 3 and 4. This allows the sound in front duct 30 to flow into recess 41 through sound outlet hole 31 by communicating with recess 41, and allows the flow of air to be conducted through recess 41, thereby discharging the sound.

In order to improve the firmness of the earmuff 20, a convex buckle 23 is formed on the rear end of the inner wall of the cylindrical sleeve-shaped part 21, namely, the end of the earmuff 20, which is far away from the front end orifice of the front guide tube 30 after being assembled in place, as shown in fig. 2 and 3, a concave clamping groove 32 is correspondingly formed on the front guide tube 30, and the buckle 23 is clamped in the clamping groove 32 to axially limit the earmuff 20 and prevent the earmuff from falling off.

Further, for the convenience of the ear cap 20, the outer walls of the buckle 23 and the front conduit 30 are provided with a guiding inclined plane C for the convenience of the cylindrical cap 21, as shown in fig. 2 and 3.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (6)

1. An in-ear earphone comprises an earshell, an earmuff and a front guide pipe which is positioned at the front end of the earshell and communicated with the interior of the earshell, wherein the earmuff comprises an inner cylindrical sleeving part and an outer earmuff main body, and the cylindrical sleeving part is sleeved on the front guide pipe in an interference fit mode so that the earmuff is installed on the front guide pipe; the earmuff with the contact site of leading catheter is formed with the sound structure of letting out that is used for letting out sound, its characterized in that: the sound leakage structure is a flocked surface formed on the inner wall of the cylindrical sleeve part, or the sound leakage structure is a concave-convex alternate structure formed on the inner wall of the cylindrical sleeve part and/or the outer wall of the front guide pipe.

2. An in-ear headphone according to claim 1, characterized in that: when the sound leakage structure is the concave-convex alternating structure, the depths of all concave parts are consistent or unequal.

3. An in-ear headphone according to claim 2, characterized in that: when the sound leakage structure is a concave-convex alternate structure formed on the inner wall of the cylindrical sleeve part and the depth of all the concave parts is consistent, the depth of the concave parts is 1/5-1/3 of the wall thickness of the cylindrical sleeve part.

4. An in-ear headphone according to claim 3, characterized in that: and the front guide pipe is provided with a sound leakage hole penetrating through the wall thickness of the front guide pipe at a part corresponding to at least part of the concave part of the sound leakage structure.

5. An in-ear headphone according to claim 1, characterized in that: the rear end of the inner wall of the cylindrical sleeve part is provided with a convex buckle, the front guide pipe is correspondingly provided with a concave clamping groove, and the buckle is clamped in the clamping groove.

6. An in-ear headphone according to claim 5, characterized in that: the buckle with all be equipped with on the outer wall of front conduit and be convenient for the guide inclined plane that the portion cover was established is established to the tube-shape cover.