CN202496050U - In-ear earphone - Google Patents

Abstract

The utility model relates to an in-ear earphone, which comprises a bass unit, a tweeter unit and a casing, the casing encloses a storage space for the bass unit and the tweeter unit, and the casing includes a Sound holes and a plurality of bass through holes, the inner wall of the housing is provided with a first step and a second step at intervals, the first step supports the bass unit, and the second step supports the tweeter unit. A gas storage cavity is formed between the first step and the second step, and a plurality of support blocks extending toward the direction of the gas storage cavity are arranged on the inner surface of the second step, and a bass that communicates with the gas storage cavity is formed between adjacent support blocks A through hole, the sound generated by the woofer is propagated through the gas storage chamber, the woofer through hole and the sound outlet respectively, and the sound generated by the tweeter is propagated through the sound outlet. The in-ear earphone of the utility model can simultaneously produce high-pitched parts and low-pitched parts, thereby effectively improving the sound range.

Description

earbuds

technical field

The utility model relates to an in-ear earphone, in particular to an in-ear earphone which simultaneously produces treble and bass.

Background technique

Earphones are devices that provide sound playback, such as radios, mobile phones, walkmans, etc., and transmit sound wave signals to the user's ears, which can prevent the sound generated by the sound playback equipment from affecting the surrounding people, or prevent the sound from being disturbed. People who should not hear listen, so earphones are used quite frequently in daily life.

Headphones can be roughly divided into two types: head-mounted and earplugs. The head-mounted earphone has a set of sound parts that can cover the user's ears. The headband is connected between the two sound parts. When the sound part covers the user's ears At the same time, the headband can be hung on the top of the user's head to fix the position of the earphones. The headphone earphones are large in size, and the sound part covering the user's ears has a certain size, which is not convenient for the user to carry. It is used for fixed music playing places.

Earbud earphones are small in size and only have a size that can be plugged into the outside of the human body's earholes. They are convenient for users to carry, and they can often be used with sound playback equipment such as walkmans.

Please refer to FIG. 1 , which is a schematic diagram of a side structure of an in-ear earphone related to the present invention. The in-ear earphone 1 includes a cover 11 , a casing 13 , a bass unit 15 and a sound outlet 17 .

The cover 11 cooperates with the casing 13 to form a receiving space, the bass unit 15 is nested and stored in the receiving space, and the sound outlet 17 communicates with the receiving space.

When the woofer unit 15 is working, the bass generated by it is transmitted from the containing space to the human ear through the sound outlet 17 , and the human ear then perceives the bass.

However, the following technical problems still exist in the structure of the above-mentioned in-ear earphone 1: first, because the in-ear earphone 1 only accommodates a kind of woofer, it cannot obtain better treble; secondly, in order to realize the treble part, it is necessary to To increase the tweeter unit in the above-mentioned storage space, it is necessary to improve the layout of the above-mentioned storage space. How to rationally arrange and achieve better mid-bass is also a technical problem to be solved urgently in the industry.

Utility model content

Aiming at the technical problem that the prior art in-ear earphones cannot simultaneously achieve high and low pitch and middle and low bass effects, it is necessary for the utility model to provide an in-ear earphone capable of simultaneously having better treble and bass effects.

An in-ear earphone, which includes a bass unit, a tweeter unit and a housing, the housing encloses a storage space to accommodate the bass unit and the tweeter unit, and the housing includes a sound outlet and multiple holes that communicate with each other. a bass through hole, the inner wall of the casing is provided with a first step and a second step at intervals, the first step supports the bass unit, the second step supports the tweeter, and the first step and the second step support the tweeter. A gas storage cavity is formed between the second steps, and a plurality of support blocks extending toward the direction of the gas storage cavity are arranged on the inner surface of the second step, and bass through holes communicating with the gas storage cavity are formed between adjacent support blocks, so The sound generated by the woofer is propagated through the gas receiving cavity, the bass through hole and the sound outlet respectively, and the sound generated by the tweeter is propagated through the sound outlet.

As a further improvement of the above-mentioned in-ear earphone, the housing includes a cylindrical first side wall, a second side wall and a third side wall, and the first side wall, the second side wall and the third side wall are sequentially connected to each other. and the radius of the first side wall is greater than the radius of the second side wall, the radius of the second side wall is greater than the radius of the third side wall, the first side wall and the second side wall jointly enclose the gas storage chamber, the The third side wall surrounds the sound outlet.

As a further improvement of the above in-ear earphone, the plurality of support blocks are evenly arranged on the inner surface of the side wall, each support block is L-shaped as a whole, and the tweeter abuts against the L-shaped bend of the support block .

As a further improvement of the above-mentioned in-ear earphone, the number of the support blocks is four, and a bass channel connecting the gas storage cavity and the sound outlet is formed between every two adjacent support blocks.

As a further improvement of the above in-ear earphone, it also includes a cylindrical silicone pad, the silicone pad is sleeved on the outer surface of the third side wall, and the through hole surrounded by the silicone pad communicates with the sound hole .

Compared with the prior art, in the in-ear earphone of the present invention, the woofer and the tweeter are arranged at intervals at the same time, and an independent bass channel is set inside the housing, and the sound produced by the woofer passes through the bass unit. The through hole is transmitted to the sound outlet, so that the high-pitched part and the low-pitched part can be produced at the same time, and the sound range can be improved. Moreover, the tweeter is placed closer to the ear canal to provide better treble. Furthermore, a woofer unit is arranged inside the housing to be placed behind the tweeter unit, and the gas storage cavity and the ear canal form a closed cavity to produce better mid-bass.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of an in-ear earphone related to the utility model.

Fig. 2 is a three-dimensional assembly diagram of a preferred embodiment of the in-ear earphone of the present invention.

Fig. 3 is a three-dimensional exploded schematic view of the earphone shown in Fig. 2 .

Fig. 4 is a side sectional view of the earphone shown in Fig. 2 .

FIG. 5 is a perspective schematic diagram of the housing of the in-ear earphone shown in FIG. 2 .

Fig. 6 is a top view of the shell of the earphone shown in Fig. 5 .

FIG. 7 is a schematic diagram of the sound propagation path of the in-ear earphone shown in FIG. 4 .

Detailed ways

The structure of the in-ear earphone of the present invention will be described below in conjunction with the accompanying drawings.

Please refer to FIG. 2 and FIG. 3 at the same time, wherein FIG. 2 is a three-dimensional assembly schematic diagram of a preferred embodiment of the in-ear earphone disclosed in the present invention, and FIG. 3 is a three-dimensional exploded schematic diagram of the in-ear earphone shown in FIG. 2 . The earphone 2 includes a cover 21 , a woofer 23 , a tweeter 25 , a housing 27 and a silicone pad 29 . The cover 21 cooperates with the casing 27 to form a receiving space (not shown) for accommodating the bass unit 23 and the tweeter unit 25 . The silicone pad 29 is sleeved on one end of the housing 27 . When the in-ear earphone 2 is inserted into the human ear for use, the silicone pad 19 is used to be placed outside into the ear canal to transmit treble and bass to the human ear.

The cover 21 is a disc-shaped columnar structure, including a bottom wall 211 and a side wall 213, the side wall 213 is formed by extending from the side surface of the bottom wall 211, and the outer diameter of the side wall is less than The outer diameter of the bottom wall 21 .

The housing 27 is a multi-section cylindrical structure with two ends open. The housing 27 includes a first side wall 271 , a second side wall 273 and a third side wall 275 arranged in sequence. The first side wall 271 encloses a cylindrical first storage space (not shown) with a radius of R1, one end of the first storage space is open, and the cover 21 covers the opening. The sidewall 213 of the cover 21 is nested with the first receiving space. A first step 272 is provided on the inner wall surface of the first side wall 271, and the first step 272 supports the woofer unit 23, so that the woofer unit 23 is fixed in the first receiving space adjacent to the cover. Inside.

The second side wall 273 encloses another cylindrical second storage space with a radius R2, the radius of the second storage space is smaller than the radius of the first storage space, that is, R2<R1, and the second storage space The storage space communicates with the first storage space. A plurality of supporting blocks 274 extending toward the inner side of the receiving space are provided on the inner surface of the second receiving space, each supporting block 274 is L-shaped as a whole, and a second step 2741 is formed at the bending position of the supporting blocks 274, The plurality of second steps 2741 form a support platform, the tweeter unit 25 is nested in the second accommodation space, and the plurality of second steps 2741 support the tweeter unit 25 to be fixed on the second inside the containment space. There is a gap between every two adjacent supporting blocks 274 , forming a bass through hole 2742 , so that a plurality of bass through holes 2742 are evenly distributed in the cylindrical second receiving space. When the tweeter unit 25 is nested and accommodated in the second accommodation space, the tweeter unit 25 and the bass unit 23 are arranged at intervals, and the gas storage cavity of the earphone 2 is formed between the two, so that The L-shaped support block 274 extends toward the inside of the gas storage chamber. In this embodiment, the number of the support blocks 274 is four, which are evenly spaced on the inner surface of the second side wall 273, and also correspond to the second receiving space surrounded by the second side wall 273 Four bass channels are formed inside, and the bass channels connect the gas storage cavity and the sound outlet 276 .

The third side wall 275 encloses a cylindrical third receiving space with a radius R3. The radius R3 of the third storage space is smaller than the second storage space R2, ie: R3<R2. One end of the third receiving space is connected to the second receiving space, and the other end extends away from the second receiving space, forming the sound outlet 276 of the earphone 2 . The sound hole 276 passes through to the second receiving space. When the tweeter unit 25 is nested and accommodated in the second storage space, the outer wall of the tweeter unit 25 cooperates with the support block 274 to separate the second storage space from the first storage space. The bass through hole 2742 passes through the first receiving space and the sound output hole 276 .

The silicone pad 29 is a cylindrical flexible protection pad made of silicone material, which is sleeved on the outer surface of the third side wall 275 and extends the sound hole 276 away from the second receiving space. The direction continues to extend for a certain length. The through hole surrounded by the silica gel pad 29 communicates with the sound hole.

Please refer to FIG. 7 , which is a schematic diagram of the sound propagation path when the in-ear earphone of the present invention is working. When the user uses the earphone 2, the silicone pad 29 directly contacts the external auditory canal of the ear. When the woofer unit 23 works, it produces bass from the gas storage cavity, which is transmitted to the sound outlet through the bass through hole, and then spread to the human ear to realize the user's bass perception, as shown by the VI arrow in Figure 7. Indicates the direction. When the tweeter unit 25 is working, the treble generated by it is transmitted to the human ear through the sound outlet 276 to realize the user's perception of the treble, as indicated by the arrow VII in FIG. 7 . Thus, the function of the in-ear earphone 2 transmitting treble and bass to the human ear at the same time is realized, which effectively improves the defect that the in-ear earphone in the prior art only transmits a single bass, and improves the sound quality.

Preferably, the housing and the cover can be of an integrated structure.

Compared with the prior art, the woofer 23 and the tweeter 25 are arranged at intervals in the in-ear earphone 2 at the same time, so as to realize simultaneous generation of the treble part and the bass part and improve the sound range. Moreover, the tweeter unit 25 is placed closer to the ear canal to provide better treble. Furthermore, the woofer unit 23 is arranged inside the casing 27 and placed behind the tweeter unit 25 , and the gas storage chamber forms a closed cavity with the ear canal to produce better mid-bass.

The above are only preferred implementation examples of the utility model, and are not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (5)

1. An in-ear earphone, which comprises a bass unit, a tweeter unit and a housing, wherein the housing surrounds an accommodation space to accommodate the bass unit and the tweeter unit, and is characterized in that: the housing includes interpenetrating A sound hole and a plurality of bass through holes, the inner wall of the housing is provided with a first step and a second step at intervals, the first step supports the woofer, and the second step supports the tweeter. A gas storage cavity is formed between the first step and the second step, and a plurality of support blocks extending toward the direction of the gas storage cavity are arranged on the inner surface of the second step, and the adjacent support blocks communicate with the gas storage cavity. The sound produced by the woofer is propagated through the gas storage cavity, the bass through hole and the sound outlet respectively, and the sound generated by the tweeter is transmitted through the sound outlet. 2. The in-ear earphone according to claim 1, wherein the housing comprises a cylindrical first side wall, a second side wall and a third side wall, and the first side wall, the second side wall The wall and the third side wall are arranged successively, and the radius of the first side wall is greater than the radius of the second side wall, the radius of the second side wall is greater than the radius of the third side wall, and the first side wall and the second side wall together form a In the gas storage cavity, the third side wall surrounds the sound outlet. 3. The in-ear earphone according to claim 2, wherein the plurality of support blocks are evenly arranged on the inner surface of the side wall, each support block is L-shaped as a whole, and the L-shaped bends are formed The second step, the tweeter abuts against the second step. 4. The in-ear earphone according to claim 3, wherein the number of the support blocks is four, and a hole connecting the gas storage chamber and the sound outlet is formed between every two adjacent support blocks. bass channel. 5. The in-ear earphone according to claim 4, further comprising a cylindrical silicone pad, the silicone pad is sleeved on the outer surface of the third side wall, and the through hole surrounded by the silicone pad communicate with the sound hole.

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