CN215420662U - In-ear earphone - Google Patents

Abstract

The application provides an in-ear earphone, including earphone shell, speaker and earcap, the speaker is installed in earphone shell, earphone shell's inside is formed with the earphone front chamber, earphone shell includes main part and sound pipe, the earcap cup joints on sound pipe, the sound outlet has been seted up to sound pipe's terminal surface, first ventilative groove has been seted up to sound pipe's lateral wall, the bleeder vent has been seted up to the diapire in first ventilative groove, the ventilative groove of second has been seted up to the outer wall of main part, bleeder vent intercommunication earphone front chamber and first ventilative groove, first ventilative groove and the ventilative groove intercommunication of second. The application provides an in-ear earphone is through the ventilative passageway that is formed by bleeder vent, first ventilative groove and the ventilative groove of second intercommunication in proper order with external environment intercommunication, makes after wearing in-ear earphone, and the air in the external ear canal can exchange with external environment's air, thereby has solved the sealed too obvious technical problem of effect that gives sound insulation of current in-ear earphone effectively, has promoted user's use comfort.

Description

In-ear earphone

Technical Field

The application belongs to the technical field of sound playing equipment, and more particularly relates to an in-ear earphone.

Background

In-ear headphones are popular among people because of their excellent portability, high quality sound performance, and excellent sound insulation effect. The existing in-ear earphone is usually provided with an ear cap outside the front cavity of the in-ear earphone in order to form better sound insulation and obtain better background quietness, and after the ear cap is plugged into the external auditory canal of a human ear, the surface of the ear cap can form close fit with the surface of the external auditory canal, thereby realizing sealed sound insulation and reducing the audibility of external noise.

However, the current way of sealing the sound insulation by the earcap has the following problems: 1. negative pressure discomfort can occur at the moment when the user takes off the earphone; 2. the sound insulation effect is too obvious, so that the user cannot receive external sound, the communication is influenced, and potential safety hazards (such as no whistle sound when passing a road or no alarm sound when meeting an emergency) exist.

SUMMERY OF THE UTILITY MODEL

The present application is directed to an in-ear earphone, including but not limited to, solving the technical problem of the existing in-ear earphone that the sealing and sound insulation effect is too obvious.

In order to achieve the above object, the present application provides an in-ear headphone, comprising a headphone housing, a speaker and an ear cap, the loudspeaker is arranged in the earphone shell, the earphone shell comprises a main body part and a sound conduit, the ear cap is sleeved on the sound conduit, the end surface of the sound conduit is provided with a sound outlet, the sound outlet direction of the loudspeaker faces the sound outlet, an earphone front cavity communicated with the loudspeaker and the sound outlet is formed in the earphone shell, the side wall of the sound conduit is provided with a first ventilation groove, the notch of the first ventilation groove faces to one side deviating from the central axis of the sound conduit, the bottom wall of the first ventilation groove is provided with ventilation holes, the outer wall of the main body part is provided with a second ventilation groove, the air holes are communicated with the front cavity of the earphone and the first air-permeable groove, and the first air-permeable groove is communicated with the second air-permeable groove;

when the in-ear earphone is worn, the earcap is plugged in the external auditory canal, and the air holes, the first air permeable grooves and the second air permeable grooves are sequentially communicated to form air permeable channels communicated with the external environment.

Further, the vent hole extends from the bottom wall of the first vent groove to the front cavity of the earphone.

Furthermore, the air holes are formed in the middle of the bottom wall of the first air-permeable groove.

Furthermore, the air holes are trapezoidal holes, and the cross section area of the air holes is gradually reduced from one side of the first air-permeable groove to one side of the front cavity of the earphone.

Furthermore, the caliber of the air hole on the bottom wall of the first air-permeable groove is 0.5-0.6 mm.

Further, the width of the second ventilation groove is larger than that of the first ventilation groove.

Further, the length direction of the first ventilation groove is consistent with the direction of the central axis of the sound conduit.

Further, the inner surface of the side wall of the sound conduit is provided with a tuning layer, and the tuning layer covers the air holes.

Further, the inner surface of the side wall of the sound conduit is provided with a platform, the air holes penetrate through the platform, and the tuning layer is attached to the platform.

Further, the tuning layer is mesh or tuning paper.

The application provides an in-ear earphone's beneficial effect lies in: the adoption is seted up first ventilative groove at the lateral wall of sound pipe, set up the bleeder vent at the diapire in first ventilative groove and set up the ventilative groove of second at the outer wall of main part, through by the bleeder vent, the ventilative passageway that first ventilative groove and the ventilative groove of second communicate the formation in proper order communicates external auditory canal and external environment, make after wearing in-ear earphone, the air in the external auditory canal can exchange with external environment's air, realize the atmospheric pressure balance of the external auditory canal inside and outside little volume sound's propagation, thereby the sealed sound insulation effect too obvious technical problem of current in-ear earphone has been solved effectively, user's comfort level has been promoted, it leads to user's obstacle communication to have avoided using the earphone. The first ventilation groove and the ventilation holes are formed in the side wall of the sound conduit, and the second ventilation groove is formed in the outer wall of the main body part, so that the earphone shell is easy to mold, no additional component is required to be added on the earphone shell, and the molding difficulty is low; and because the structural shape of sound pipe changes very little, the earcap adopts general structure can, need not to process ventilative or prevent slow-witted class structure in addition on the earcap.

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 based on these drawings without inventive exercise.

Fig. 1 is a schematic perspective view of an in-ear headphone according to an embodiment of the present application;

fig. 2 is a partially enlarged schematic view of a cross-sectional view of an in-ear headphone according to an embodiment of the present application;

fig. 3 is a schematic perspective view of a sound tube of an earphone housing according to an embodiment of the present disclosure;

fig. 4 is a schematic view of an internal structure of a sound tube of an earphone housing according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

1-in-ear headphone, 10-headphone housing, 20-speaker, 30-ear cap, 11-body part, 12-sound conduit, 110-second ventilation groove, 121-sound outlet, 122-headphone front cavity, 123-first ventilation groove, 124-ventilation hole, 123-platform, 1230-surface of platform facing headphone front cavity, L-central axis of sound conduit, W1-width of first ventilation groove, W2-width of second ventilation groove.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application 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 merely illustrative of the present application and are not intended to limit the present application.

It should be noted 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 connected to the other element. When an element is referred to as being "connected" to another element, it can be directly or indirectly connected to the other element. The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience of description only and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and therefore are not to be construed as limiting the patent, the particular meaning of which terms will be understood by those skilled in the art as appropriate. 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. The term "plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 3, an in-ear earphone 1 provided by the present application includes an earphone housing 10, a speaker 20, and an ear cap 30, wherein the speaker 20 is installed in the earphone housing 10, the earphone housing 10 includes a main body portion 11 and a sound tube 12, the ear cap 30 is sleeved on the sound tube 12, a sound outlet 121 is opened on an end surface of the sound tube 12, a sound direction of the speaker 20 faces the sound outlet 121, and an earphone front cavity 122 communicating the speaker 20 and the sound outlet 121 is formed inside the earphone housing 10. The speaker 20 may be located in the main body 11 or in the sound duct 12, or a part of the speaker 20 is located in the main body 11 and another part is located in the sound duct 12, and the position of the speaker is not specifically limited as long as the sound emitting direction of the speaker 20 is ensured to face the sound outlet 121 of the sound duct 12. Specifically, the speaker 20 is located in the main body portion 11, an earphone front cavity 122 is formed inside the sound duct 12, the earphone front cavity 122 is respectively communicated with the speaker 20 and the sound outlet 121, a first ventilation groove 123 is formed in a side wall of the sound duct 12, a notch of the first ventilation groove 123 faces a side away from a central axis L of the sound duct 12, a ventilation hole 124 is formed in a bottom wall of the first ventilation groove 123, meanwhile, a second ventilation groove 110 is formed in an outer wall of the main body portion 11, the ventilation hole 124 is respectively communicated with the earphone front cavity 122 and the first ventilation groove 123, and the first ventilation groove 123 is communicated with the second ventilation groove 110; when the in-ear headphone 1 is worn, the earcap 30 is inserted into the external auditory canal, the sound generated by the speaker 20 can sequentially pass through the front cavity 122 of the headphone and the sound outlet 121 and then propagate into the external auditory canal, and the air hole 124, the first air permeable groove 123 and the second air permeable groove 110 are sequentially communicated to form an air permeable channel communicated with the external environment.

It can be understood that, on the in-ear earphone 1, the sleeve of the ear cap 30 is respectively in interference fit with the side wall of the sound conduit 12 and the outer wall of the main body part 11 facing the sound conduit 12, the existence of the first ventilation groove 123 keeps a gap between the sleeve of the ear cap 30 and the ventilation hole 124, so as to prevent the ventilation hole 124 from being closed, and the existence of the second ventilation groove 110 keeps a gap between the sleeve of the ear cap 30 and the outer wall of the main body part 11, so that not only can the air in the external environment enter the first ventilation groove 123 from the second ventilation groove 110 and then enter the earphone front cavity 122 from the ventilation hole 124, but also the air in the earphone front cavity 122 can enter the first ventilation groove 123 from the ventilation hole 124 and then enter the external environment from the second ventilation groove 110; wear on the ear when pleasant formula earphone 1, earcap 30 stretches into and seals the external auditory canal in the external auditory canal, earphone front cavity 122 is through sound outlet 121 and external auditory canal intercommunication, earphone front cavity 122 and external auditory canal form a confined space, external auditory canal and earphone front cavity 122 pass through bleeder vent 124, first ventilative groove 123, ventilative groove 110 of second and external environment intercommunication, can enough guarantee speaker 20's low frequency acoustic characteristic, can realize external auditory canal and external environment's atmospheric pressure balance again, be favorable to reducing the earclosure benefit.

The utility model provides an in-ear earphone 1, adopt and set up first ventilative groove 123 at the lateral wall of sound pipe 12, set up bleeder vent 124 and set up second ventilative groove 110 at the outer wall of main part 11 at the diapire of first ventilative groove 123, through by bleeder vent 124, the ventilative passageway that first ventilative groove 123 and second ventilative groove 110 communicate formation in proper order communicates external auditory canal and external environment, make and wear in-ear earphone 1 back, the air in the external auditory canal can exchange with the air of external environment, realize the atmospheric pressure balance of external auditory canal inside and outside little volume sound's propagation, thereby solved current in-ear earphone effectively and sealed the sound insulation effect too obvious technical problem, user's comfort level has been promoted, avoided using the earphone to lead to user's communication obstacle. In addition, since the first ventilation groove 123 and the ventilation hole 124 are formed on the sidewall of the sound tube 12 and the second ventilation groove 110 is formed on the outer wall of the main body 11, the mold of the earphone housing 10 is easy to process, no additional member is required to be added to the earphone housing 10, and the molding difficulty is low; moreover, since the structural shape of the sound tube 12 is not changed much, the ear cap 30 can be a universal structure, and the ear cap 30 does not need to be additionally provided with structures such as ventilation or fool-proof.

Further, referring to fig. 2 and 3, as an embodiment of the in-ear earphone provided by the present application, the vent 124 extends from the bottom wall of the first vent groove 123 to the earphone front cavity 122. That is, the outer opening of the vent hole 124 is located on the bottom wall of the first vent groove 123, so that the outer opening of the vent hole 124 is completely exposed in the first vent groove 123, thereby allowing air of the external environment to pass through the vent hole 124 to the maximum extent, and making full use of the inner space of the vent hole 124.

Further, referring to fig. 2 and 3, as an embodiment of the in-ear earphone provided by the present application, the vent 124 is formed in the middle of the bottom wall of the first vent groove 123. Thereby ensuring that the outer side openings of the airing holes 124 are completely exposed in the first airing grooves 123 and preventing the risk of the outer side openings of the airing holes 124 being partially blocked by the sleeves of the ear caps 30.

Further, referring to fig. 2, as an embodiment of the in-ear earphone provided by the present application, the vent 124 is a trapezoidal hole, and specifically, the cross-sectional area of the vent 124 gradually decreases from one side of the first vent groove 123 to one side of the front cavity 122 of the earphone. That is, the aperture of the inner opening of the air hole 124 is smaller than the aperture of the outer opening of the air hole 124, which is convenient for processing and forming. Wherein caliber refers to the inner diameter.

Further, referring to fig. 3, as an embodiment of the in-ear earphone provided by the present application, the diameter of the air hole 124 on the bottom wall of the first air-permeable groove 123 is 0.5 to 0.6 mm. The aperture of the outer opening of the air holes 124 is 0.5-0.6 mm, so that the flow of the air in the external environment can be increased, the processing difficulty of the air holes 124 can be reduced, and the risk that the air holes 124 are blocked by dirty foreign matters can be effectively reduced.

Further, referring to fig. 3, as an embodiment of the in-ear headphone provided by the present application, the width W2 of the second air-permeable groove 110 is greater than the width W1 of the first air-permeable groove 123. That is, the width of the outer opening of the ventilation channel formed by sequentially communicating the ventilation hole 124, the first ventilation groove 123 and the second ventilation groove 110 is greater than the width of the inner part of the ventilation channel, so that the risk that the outer opening of the ventilation channel is blocked by the sleeve of the earcap 30 or dirty foreign matters can be reduced, and the flow of the ambient air inside and outside the ventilation channel can be effectively increased.

Further, referring to fig. 2 and 3, as an embodiment of the in-ear headphone provided by the present application, a length direction of the first ventilation groove 123 coincides with a direction of the central axis L of the sound tube 12. Specifically, the first ventilation groove 123 extends along the protruding direction of the sound duct 12, and the end of the first ventilation groove 123 far away from the sound outlet 121 extends to the second ventilation groove 110, thereby facilitating reduction of the processing difficulty of the first ventilation groove 123.

Further, referring to fig. 2, as an embodiment of the in-ear earphone provided by the present application, a tuning layer (not shown) is disposed on an inner surface of the side wall of the sound tube 12, and the tuning layer covers the vent 124. Specifically, the tuning layer can be mesh cloth made of fiber materials or the like or tuning paper with air permeability, wherein the mesh number of the mesh cloth or the tuning paper is 250-450 meshes; the tuning layer is attached to the inner surface of the side wall of the sound tube 12 and covers the inner opening of the air hole 124, so that the sound pressure in the external auditory canal can be adjusted, and the sound of the earphone can be adjusted.

Further, referring to fig. 3 and 4, as an embodiment of the in-ear earphone provided by the present application, a platform 125 is disposed on an inner surface of a sidewall of the sound tube 12, the vent 124 penetrates through the platform 125, and the tuning layer is attached on the platform 125. Specifically, the platform 125 is a part of the inner wall of the sound tube 12, a surface 1250 of the platform 125 facing the earphone front cavity 122 is a flat surface, the vent hole 124 extends from the surface 1250 to the bottom wall of the first vent groove 123, and the tuning layer is attached to the surface 1250 and covers the vent hole 124. Because the surface 1250 of the platform 125 facing the front cavity 122 of the earphone is flat, the tuning layer can be attached conveniently, and the firmness of the bonding of the tuning layer can be improved.

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

Claims (10)

1. The utility model provides an in-ear earphone, includes earphone casing, speaker and earcap, the speaker install in the earphone casing, earphone casing includes main part and sound pipe, the earcap cup joint in on the sound pipe, the sound outlet has been seted up to the terminal surface of sound pipe, the play sound direction orientation of speaker the sound outlet, earphone casing's inside is formed with the intercommunication the speaker with the earphone front cavity of sound outlet, its characterized in that:

the side wall of the sound guide pipe is provided with a first ventilation groove, the notch of the first ventilation groove faces to one side deviating from the central axis of the sound guide pipe, the bottom wall of the first ventilation groove is provided with a ventilation hole, the outer wall of the main body part is provided with a second ventilation groove, the ventilation hole is communicated with the front cavity of the earphone and the first ventilation groove, and the first ventilation groove is communicated with the second ventilation groove;

when the in-ear earphone is worn, the earcap is plugged in the external auditory canal, and the air holes, the first air permeable grooves and the second air permeable grooves are sequentially communicated to form air permeable channels communicated with the external environment.

2. An in-ear headphone as recited in claim 1, wherein: the vent hole extends from the bottom wall of the first vent groove to the front cavity of the earphone.

3. An in-ear headphone as recited in claim 2, wherein: the air holes are formed in the middle of the bottom wall of the first air-permeable groove.

4. An in-ear headphone as recited in claim 2, wherein: the air holes are trapezoidal holes, and the cross section area of each air hole is gradually reduced from one side of the first air-permeable groove to one side of the front cavity of the earphone.

5. An in-ear headphone as recited in claim 2, wherein: the caliber of the air holes on the bottom wall of the first air-permeable groove is 0.5-0.6 mm.

6. An in-ear headphone as recited in claim 1, wherein: the width of the second ventilation groove is larger than that of the first ventilation groove.

7. An in-ear headphone as recited in claim 1, wherein: the length direction of the first ventilation groove is consistent with the direction of the central axis of the sound conduit.

8. An in-ear headphone as claimed in any one of claims 1 to 7, wherein: the inner surface of the side wall of the sound conduit is provided with a tuning layer, and the tuning layer covers the air holes.

9. An in-ear headphone as recited in claim 8, wherein: the inner surface of the side wall of the sound guide pipe is provided with a platform, the air holes penetrate through the platform, and the tuning layer is attached to the platform.

10. An in-ear headphone as recited in claim 8, wherein: the tuning layer is mesh cloth or tuning paper.

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