CN115580801A - Headphones and headphone box components - Google Patents

Abstract

The application provides an earphone and earphone box subassembly, the earphone includes: an earphone body (10), the earphone body (10) having an opening (10 a); go out sound mouth (20), go out sound mouth (20) connect in on opening (10 a), go out sound mouth (20) including play sound pipe (21), be provided with first speaker (40) in going out sound pipe (21), go out sound mouth (20) be used for with at least one speaker that sets up in earphone main part (10) with the sound conduction of first speaker (40) is to the user's ear canal. This application is through setting up the speaker in the play sound pipe of earphone for the earphone can have more speakers, and then makes the earphone have better noise reduction effect and sound quality effect.

Description

Headphones and headphone box components

technical field

The present application relates to the technical field of electronic equipment, in particular to an earphone and an earphone box assembly.

Background technique

With the advancement of wireless Bluetooth technology, especially the wide application of Bluetooth 5.0 technology, more and more true wireless stereo (truewireless stereo, TWS) headset products have entered people's lives. TWS earphones are favored by consumers due to their wireless, small size, portability, and good sound quality. With the continuous breakthroughs in electronic product technology and the fast-paced changes in the living environment, people's functional requirements for TWS earphones are also increasing, and the most prominent requirements are noise reduction and sound quality.

The current TWS earphones usually have an active noise reduction function. Active noise reduction requires the microphone of the earphone to pick up the environmental noise, and through the active noise reduction chip to control the speaker inside the earphone to output an anti-phase sound wave equal to the environmental noise, so as to neutralize the noise and realize Noise reduction effect. The more speakers the earphone has, the easier it is to output a more matching anti-phase sound wave, and the noise reduction effect is more obvious. At the same time, it can also make the sound quality of the earphones better.

However, for a good wearing experience, the volume of TWS earphones (such as in-ear earphones) is constrained by the size of the human ear, and is limited by the stacking structure inside the earphones. The current TWS earphones cannot have a larger number of speakers inside, so The noise reduction effect and sound quality effect of the earphone cannot be further improved.

Contents of the invention

The present application provides an earphone and an earphone box assembly. By arranging speakers in the sound outlet tube of the earphone, the earphone can have more speakers, so that the earphone has better noise reduction effect and sound quality effect.

In a first aspect, an earphone is provided, including: an earphone main body, the earphone main body has an opening; a sound outlet, the sound outlet is connected to the opening, the sound outlet includes a sound pipe, and the sound outlet is connected to the opening. A first speaker is disposed in the sound outlet tube, and the sound outlet is used to transmit the sound of at least one speaker disposed in the earphone body and the first speaker to the user's ear canal.

The headphone body of the headphone provided by the embodiment of the present application is provided with at least one speaker, and a first speaker is also arranged in the sound outlet tube. The setting of the first speaker of the present application will not occupy the internal space of the headphone body, so that The earphones provided have a greater number of loudspeakers compared to earphones in the prior art. The earphone provided by the embodiment of the present application implements a stacking design of multiple speakers in a limited space, so that each speaker can play its own advantages and combine to achieve a better audio experience and noise reduction experience.

In the embodiment of the present application, the first speaker is arranged inside the sound outlet tube, and the outlet mouthpiece is configured to transmit the sound of at least one speaker provided in the earphone body and the first speaker to the user's ear canal, the first The setting of the speaker does not affect the sound conduction effect and the wearing comfort of the user. The arrangement of multiple speakers enables the earphone provided by the embodiment of the present application to have a better noise reduction effect and sound quality effect, and improves user experience.

In a possible design, the sound outlet nozzle further includes a sound outlet orifice plate fixed at the front end of the sound outlet tube to limit the position of the first speaker.

The sound outlet orifice can be fixedly covered on the front end of the sound outlet, so that the sound outlet and the sound outlet orifice form a "cap-shaped" structure as a whole, and the sound outlet orifice can limit the position of the first speaker. Prevent the front end of the first loudspeaker from going out to the outside of the sound pipe. For example, the front end of the first loudspeaker (that is, the end with the sound hole) can be abutted on the inner surface of the sound hole plate, and the sound hole plate is opened. There are multiple through holes so that the transmission of sound is not obstructed.

In a possible design, the sound outlet nozzle further includes a hollow bracket fixed on the rear end of the sound outlet tube to limit the position of the first speaker. The hollow bracket can limit the first loudspeaker to prevent it from falling out from the rear end of the sound pipe. The hollow bracket has a hollow part (such as a through hole or an opening), so that it will not Cause too much obstruction to the conduction of sound.

In a possible design, the earphone further includes an earplug sleeved on the periphery of the sound outlet tube, and a front end of the earplug has a sound outlet.

The earplugs are made of elastic materials, for example, the earplugs are made of soft glue (such as silicone). The front end of the earplug facing the user has a sound outlet, and the sound from the sound outlet tube is transmitted to the user's ear canal through the sound outlet. In the present application, by providing earplugs, the earphones can be worn more firmly on the user's ears, and the earplugs can close the ear canal, reducing the interference of external noise on the sound output by the sound tube.

In a possible design, there is a sound guiding gap between the earplug and the sound outlet tube, and the sound guiding gap communicates with the opening and the sound outlet.

This application can increase the number of speakers of the earphone by setting the first speaker in the sound outlet tube. The setting of the first speaker may hinder the sound conduction of the second speaker and the third speaker in the earphone body. The sound guide gap connecting the opening and the sound outlet can enhance the sound conduction effect.

In a possible design, along the direction of the sound outlet pipe from back to front, the diameter of the sound outlet pipe gradually decreases, and the hollow bracket is sealed on the inner side of the rear end of the sound outlet pipe .

At this time, the sound outlet tube and the sound outlet hole plate are in the shape of a truncated cone as a whole, and the cross-sectional area of the rear end is larger than the area of the sound outlet hole plate. Through the above settings, the installation and insertion of the first speaker can be facilitated, and the hollow bracket is sealed on the outlet. Then the inner side of the rear end of the sound tube can be fixed to the first loudspeaker. In addition, the sound outlet tube adopts a "cone" design, and holes are opened on the slope (tube wall) to meet the sound output area requirements, and the "cone" is placed in the center of the earplugs, which does not affect the wearing comfort.

Optionally, the hollow bracket can be installed on the sound outlet tube by any means such as welding, bonding, screwing, clamping or riveting.

For example, the entire sound outlet is made of metal material (that is, the hollow bracket is also made of metal material), at this time, the installation of the hollow bracket can be realized by welding or riveting.

In a possible design, the sound outlet pipe is provided with a plurality of through holes, and the through holes communicate with the sound guiding gap and the opening.

In a possible design, along the direction from back to front of the sound outlet pipe, the diameter of the sound outlet pipe remains unchanged, and the hollow bracket is sealed at the rear end of the sound outlet pipe and beyond the rear end of the sound pipe.

At this time, the sound outlet tube has a columnar structure as a whole, the cross-sectional area of the sound outlet tube is smaller than the area of the hollow bracket, and the rear end of the sound outlet tube is installed on the hollow bracket. The hollow bracket covers the rear end of the sound outlet tube and exceeds the rear end of the sound outlet tube, so that the sound outlet mouthpiece can be integrally installed on the main body of the earphone conveniently.

In a possible design, the hollow part of the hollow bracket communicates with the sound guiding gap and the opening.

In a possible design, the mouthpiece is installed on the opening. Through the above settings, the first speaker can be installed in the mouthpiece to form an integrated structure, and then installed on the opening (ie, the earphone body) as a whole, thereby reducing the installation difficulty of the first speaker and improving production efficiency .

In a possible design, the sound outlet tube, the first loudspeaker and the hollow bracket are assembled into an integrated structure and installed on the opening.

In a possible design, the mouthpiece is a metal piece.

Considering the installation difficulty of the first loudspeaker, the sound pipe can be made of relatively stable (higher strength) materials such as metal, so that the wall of the sound pipe can be set as thin as possible to increase the sound pipe. Internal space, providing enough space for the installation of the first speaker.

Optionally, the metal piece may be a stainless steel piece, a copper alloy piece, or an aluminum alloy piece, but is not limited thereto.

In a possible design, the sound outlet tube and the sound outlet hole plate are formed into an integral structure through an integral molding process. Therefore, the sound outlet has higher mechanical strength, and the production process can be simplified to save the production cost.

For example, the integral forming process may be metal direct forming, for example, may be realized by forging, stamping or casting process.

For another example, metal powder may be used to form the above integrated structure through a powder metallurgy process.

In a possible design, the first speaker is any one of a moving iron speaker, a flat magnetic speaker or a MEMS speaker.

In a possible design, a second speaker and a third speaker are disposed inside the earphone body, the second speaker is adjacent to the opening, and the third speaker is located in the middle of the earphone body.

The earphone provided by the embodiment of the present application realizes the stacking design of at least three speakers in a limited space. Compared with the earphone with one or two speakers in the prior art, the earphone provided by the embodiment of the present application can divide the frequency of multiple speakers Design, so that each speaker can show a better audio capability, which in turn makes the earphones have better noise reduction effects and sound quality effects, and can improve the user experience.

In a possible design, the second speaker is a dynamic speaker.

In a possible design, the third loudspeaker is any one of a moving iron loudspeaker, a flat magnetic loudspeaker or a MEMS loudspeaker.

In a possible design, the working frequency bands of the first speaker, the second speaker and the third speaker are different. Through the above settings, the above three speakers can be used to give full play to their respective audio advantages, and combined to achieve a better audio effect experience and noise reduction experience.

Here, the working frequency bands of the first speaker, the second speaker and the third speaker may or may not overlap, which is not limited in this application.

Optionally, the above three speakers include a low frequency speaker, a mid frequency speaker and a high frequency speaker.

Here, the low-frequency speaker's sound advantage lies in the low frequency, without taking into account the sound quality of other frequency bands (such as medium and high frequencies). The sound generation advantage of the mid-frequency speaker is in the mid-frequency, without taking into account the sound quality of other frequency bands (such as low and high frequencies). The sound generation advantage of the tweeter is high frequency, without taking into account the sound quality of other frequency bands (such as low and medium frequencies).

For example, the first loudspeaker may be an intermediate frequency loudspeaker, the dominant sounding frequency is in the middle frequency, and the sounding frequency is 1000-4000 Hz. The second loudspeaker is a high-frequency loudspeaker, the advantage of sound production is high frequency, and the sound frequency is 4000-20000 Hz. The third loudspeaker is a low-frequency loudspeaker, which is dominant in low frequency, and the sound frequency is 200-1000Hz. The above three speakers are combined to play their own audio advantages, so that the audio effect and noise reduction effect are better.

In a possible design, a microphone is further arranged in the earphone body adjacent to the opening.

The sound pickup hole of the microphone is facing the opening. The microphone is equivalent to the feed-back microphone in the FB microphone noise reduction system. The microphone is used to pick up the sound in the user's ear canal and transmit the sound signal to the noise reduction chip inside the earphone body. The sound signal controls at least one of the first loudspeaker, the second loudspeaker and the third loudspeaker to output an anti-phase sound wave equal to the ambient noise, so as to neutralize the noise and achieve a noise reduction effect.

Optionally, the earphone provided in the embodiment of the present application further includes a feed-forward microphone, which is used to pick up the ambient sound of the outside world, and transmit the sound signal to the noise reduction chip inside the earphone body, so that the earphone provided in the embodiment of the present application The headset has the function of hybrid noise reduction, and the noise reduction effect is better.

In a possible design, the mouthpiece is installed on the opening through an ultrasonic welding process.

In a possible design, the earphone is a true wireless stereo earphone.

In a second aspect, an earphone box assembly is provided, including an earphone box and the earphone provided by any possible design in the aforementioned first aspect, the earphone box is used for accommodating the earphone and charging the earphone.

Description of drawings

FIG. 1 is a schematic diagram of an overall structure of an example of an earphone provided by an embodiment of the present application.

Fig. 2 is a schematic diagram of the overall structure of the earphone provided by the embodiment of the present application without earplugs.

FIG. 3 is a cross-sectional view from the perspective of AA in FIG. 1 .

FIG. 4 is a cross-sectional view from the perspective of BB in FIG. 2 .

Fig. 5 is a structural schematic diagram of an example in which the mouthpiece and the first loudspeaker are integrally formed.

Fig. 6 is a structural schematic diagram of another example in which the mouthpiece and the first loudspeaker are integrally formed.

Fig. 7 is a cross-sectional view of another example of the earphone provided by the embodiment of the present application.

Fig. 8 is a structural schematic diagram of yet another example in which the mouthpiece and the first speaker are integrally formed.

Fig. 9 is a structural schematic diagram of yet another example in which the mouthpiece and the first loudspeaker are integrally formed.

Reference signs: 10, earphone main body; 10a, opening; 11, ear bag; 12, ear bar; 13, second speaker; 14, third speaker; 15, microphone; 16, battery; 20, mouthpiece; 21 , sound pipe; 22, hollow bracket; 23, sound hole plate; 30, earplugs; 30a, sound outlet; 30b, sound guide gap; 40, first speaker.

detailed description

Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, are only for explaining the present application, and should not be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the indicated The number of technical characteristics. Thus, features defined as "first", "second" and "third" may explicitly or implicitly include one or more of said features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

In the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated Ground connection; it can be mechanical connection, electrical connection or mutual communication; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "side", "front", "rear", "inner", "outer" etc. The orientation or positional relationship is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the application .

In the description of this application, it should be noted that the term "and/or" is only an association relationship describing associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: exist alone A, A and B exist at the same time, and B exists alone.

It should also be noted that, in the embodiment of the present application, the same component or the same component is represented by the same reference numeral, and for the same component in the embodiment of the present application, only one of the parts or components may be marked as an example in the figure It should be understood that, for other identical parts or components, the reference signs are also applicable.

With the continuous advancement of technology, consumer electronics products are developing rapidly, especially TWS earphones are favored by consumers. TWS earphones completely abandon the way of wire connection, including independent left earphones and right earphones (master earphones and slave earphones). The left and right earphones of the TWS earphones can form a stereo system through wireless connection, and the user's listening experience has been greatly improved. In addition, due to the fact that the left and right earphones of the TWS earphones have no physical connection, almost all TWS earphones are equipped with a charging earphone box with both charging and storage functions. The charging earphone box can provide power and storage for the wireless earphones. When the earphones are not in use, just put the earphones in the box, and the charging box will charge the earphones.

TWS earphones are favored by consumers due to their wireless, small size, portability, and good sound quality. With the continuous breakthroughs in electronic product technology and the fast-paced changes in the living environment, people's functional requirements for TWS earphones are also increasing, and the most prominent requirements are noise reduction and sound quality.

The current TWS earphones usually have an active noise reduction function. Active noise reduction requires the microphone of the earphone to pick up the environmental noise, and through the active noise reduction chip to control the speaker inside the earphone to output an anti-phase sound wave equal to the environmental noise, so as to neutralize the noise and realize Noise reduction effect.

Active noise reduction is divided into single feed forward (feed forword, FF) microphone noise reduction, single feed back (feed back, FB) microphone noise reduction, and hybrid noise reduction (FF+FB). Among them, the noise reduction microphone of the FF microphone should be placed outside the ear (that is, behind the speaker) to pick up the ambient sound of the outside world. The noise reduction microphone of the FB microphone should be placed close to the sound outlet (that is, in front of the speaker) to pick up the sound in the ear canal. The FB microphone noise reduction method cleans the noise, but the processing speed is slow; the FF microphone noise reduction method handles the noise quickly, but it is difficult to clean it. The hybrid noise reduction method combines the advantages of the former two. At present, with the advancement of technology, hybrid noise reduction through FF microphone and FB microphone has become the standard configuration of high-end TWS earphones.

The more speakers the headset has, the higher the audio frequency division capability (each microphone can play different frequency bands), the easier it is to output more matching reversed-phase sound waves, and the noise reduction effect is more obvious. That is to say, the noise reduction ability of the earphone is limited by the ability of the speaker, because noise reduction requires the speaker to emit a sound opposite to the external noise to offset the external noise, so its noise reduction effect is limited by the speaker's ability. The greater the number of speakers in the earphone, the stronger the ability to emit sounds in different frequency bands, and the stronger the noise reduction effect.

In addition, users' pursuit of the sound quality of TWS earphones is also increasing day by day. Using multiple speakers to improve sound quality has become one of the most important and effective means generally recognized and adopted by the industry. Using multiple speakers for frequency division design, each speaker undertakes a part of the frequency band according to its own advantages, so that its advantages can be maximized, so that the sound quality of the entire product can be better.

For in-ear earphones, in order to have a good wearing experience, the volume of the earphones is constrained by the size of the human ear. The current TWS earphones cannot be equipped with more speakers, so that the noise reduction effect and sound quality of the earphones cannot be further improved.

In-ear earphones, also known as ear canal earphones, in-ear earplugs, or in-ear monitors (IEM), are earphones used inside the human auditory organ. In-ear earphones generally consist of the earphone body, the sound tube (also known as ear tube) and earplugs (also known as earmuffs). Wherein, the earphone body is fixedly connected with the ear-in tube, and the earplug is sleeved on the sound-out tube. When the user uses the in-ear earphone, the earplug can fit the inner wall of the user's ear canal. In this way, a closed cavity can be formed in front of the in-ear earphone, the inner wall of the ear canal, and the eardrum to obtain better airtightness and reduce the interference of external noise on the sound output by the sound tube.

To sum up, setting multiple speakers in the TWS headset can improve the noise reduction effect and sound quality of the headset. However, the volume of earphones is constrained by the size of the human ear, and is limited by the stacking structure inside the earphones. The current TWS earphones cannot have more speakers inside. How to put more speakers in the limited volume of TWS earphones , has become the design difficulty and bottleneck of high-end TWS earphones, which makes it impossible to further improve the noise reduction effect and sound quality of TWS earphones.

In order to solve the above problems, an embodiment of the present application provides an earphone and an earphone box assembly. By setting a speaker in the sound outlet tube of the earphone, the earphone can have more speakers, thereby enabling the earphone to have better noise reduction effect and sound quality Effect.

In a first aspect, the embodiment of the present application firstly provides an earphone 100 , and FIG. 1 is a schematic diagram of the overall structure of the earphone 100 provided in the embodiment of the present application. FIG. 2 is a schematic diagram of the overall structure of the earphone 100 provided by the embodiment of the present application without earplugs. FIG. 3 is a cross-sectional view from the perspective of AA in FIG. 1 . FIG. 4 is a cross-sectional view from the perspective of BB in FIG. 2 .

As shown in FIGS. 1-4 , the earphone 100 provided in the embodiment of the present application is a wireless earphone, for example, it may be the aforementioned TWS earphone. The earphone 100 can be stored in an earphone box, and the earphone box can also charge the earphone 100 . The earphone 100 is an in-ear earphone, which includes an earphone body 10 and a mouthpiece 20 connected to each other.

Wherein, the earphone main body 10 is the main part of the earphone 100, and the earphone main body 10 includes an ear bag 11 and an ear bar 12 which are fixedly connected to each other. It is worn on the user's ear. Various functional components are provided inside the earphone main body 10 (such as the shell of the ear bag 11 or the ear bar 12 ), so that the earphone 100 provided by the embodiment of the present application has various functions to meet the needs of users.

For example, the earphone main body 10 can be provided with a memory, a processor, a wireless communication module, a speaker, a microphone, a storage battery 16, and various sensors, etc., and the processor can include one or more interfaces for electrically connecting with other components of the earphone 100 .

Wherein, the memory can be used to store program codes, such as program codes for charging the earphone 100, wireless pairing and connection between the earphone 100 and other electronic devices, or wireless communication between the earphone 100 and an electronic device (such as a mobile phone).

The processor can be used to execute the above application program codes, and call relevant modules to realize various functions of the earphone 100 in the embodiment of the present application. For example, the charging function of the earphone 100, the wireless communication function and the audio data playback function, etc. are realized. A processor may include one or more processing units, and different processing units may be independent devices or integrated into one or more processors. Specifically, the processor may be an integrated control chip, or may be composed of a circuit including various active and/or passive components, and the circuit is configured to execute the functions belonging to the processor described in the embodiments of this application.

The wireless communication module is used to support Bluetooth (bluetooth, BT), global navigation satellite system (global navigation satellite system, GNSS), wireless local area network (wireless local area networks, WLAN), wireless Fidelity (wireless fidelity, Wi-Fi) network, frequency modulation (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication data exchange. In some embodiments, the wireless communication module may be a Bluetooth chip. The earphone 100 can be paired with the bluetooth chip of other electronic devices through the Bluetooth chip and establish a wireless connection, so as to realize wireless communication between the earphone 100 and other electronic devices through the wireless connection.

The earphone body 10 may further include at least one speaker, such as a second speaker 13 and a third speaker 14 .

Loudspeaker, also known as horn or audio unit, is a commonly used electroacoustic transducer. The main working principle of the speaker is to use the energized element to drive the diaphragm to generate mechanical vibration, and push the surrounding air to make the air medium fluctuate so as to realize the conversion of "electricity-force-sound".

Optionally, the speaker in the embodiment of the present application may be a moving coil speaker (or called an electric speaker), a moving iron speaker, a coil iron hybrid speaker, an electromagnetic speaker, an inductive speaker, an electrostatic speaker, a planar speaker, etc. Any type of speaker, ribbon speaker, flat magnet speaker, micro electromechanical system (micro electro mechanical system, MEMS) speaker, etc.

The earphone body 10 may also include at least one microphone, such as the microphone 15 .

A microphone can also be called a pickup, a microphone, a microphone, a microphone, a microphone, a microphone core, etc. It is an energy conversion device that converts a sound signal into an electrical signal, and the function of the speaker is just the opposite.

According to the different principles of microphone transduction, the microphone (such as microphone 15) in the embodiment of the present application can be an electric (moving coil, aluminum ribbon) microphone, a condenser microphone, a piezoelectric (crystal, ceramic) microphone , electromagnetic microphone, semiconductor microphone, etc., can also be any of cardioid microphone, sharp cardioid microphone, supercardioid microphone, bidirectional (figure 8) microphone, omnidirectional (omnidirectional) microphone, MEMS microphone, etc. a type.

The storage battery 16 is used to store electric energy charged from the outside (for example, an earphone box), and supply power to other power-consuming modules (for example, a speaker) to drive them to work. Optionally, the storage battery 16 may be any one of nickel-cadmium batteries, lithium batteries and the like.

The earphone 100 provided in the embodiment of the present application further includes various sensors.

For example, the earphone 100 also includes a distance sensor or a proximity light sensor for determining whether the earphone 100 is worn by the user, a touch sensor for detecting the user's touch operation, a fingerprint sensor for detecting the user's fingerprint to identify the user's identity, and a fingerprint sensor for detecting A heart rate sensor for the user's heart rate, a body temperature sensor for detecting the user's body temperature, an acceleration sensor or a gyroscope for detecting the user's exercise state, etc., are not limited in this application.

The earphone 100 provided by the embodiment of the present application has better noise reduction effect and sound quality effect, and can improve user experience. How the earphone 100 provided by the embodiment of the present application achieves the above purpose will be described in detail below with reference to the accompanying drawings.

As shown in FIGS. 2-4 , the earphone main body 10 includes an ear bag 11 and an ear bar 12, the ear bar 12 is connected to the rear end of the ear bag 11, and the front end of the ear bag 11 (the end facing the user when worn) has an opening 10a , the opening 10a can be used for sound guiding.

The mouthpiece 20 is connected to the opening 10a and covers the opening 10a. The sound outlet 20 includes a sound outlet tube 21 in a hollow cylindrical structure, the sound outlet tube 21 protrudes from the earphone body 10, the rear end of the sound outlet tube 21 is fixedly connected to the opening 10a, and the sound outlet tube 21 is arranged as It can be docked with the user's ear canal, and when worn, the front end of the sound outlet tube 21 extends into the user's ear canal.

The first loudspeaker 40 is arranged in the sound outlet tube 21, and the sound outlet hole of the first speaker 40 is towards the front end of the sound outlet tube 21. and the third speaker 14) and the sound of the first speaker 40 are conducted into the user's ear canal.

The earphone body 10 of the earphone 100 provided in the embodiment of the present application is provided with at least one speaker, and the first speaker 40 is also arranged in the sound outlet tube 21. The setting of the first speaker 40 of the present application will not occupy the interior of the earphone body 10 Compared with the earphones in the prior art, the earphone 100 provided by the embodiment of the present application has a larger number of speakers. The earphone 100 provided by the embodiment of the present application implements a stacking design of multiple speakers in a limited space, so that each speaker can play its own advantages and combine to achieve a better audio experience and noise reduction experience.

The first speaker 40 in the embodiment of the present application is arranged inside the sound outlet tube 21, and the outlet mouthpiece 20 is configured to transmit the sound of at least one speaker and the first speaker 40 arranged in the earphone main body 10 to the user. In the ear canal, the setting of the first speaker 40 will not affect the sound conduction effect and the wearing comfort of the user. The arrangement of multiple speakers enables the earphone 100 provided by the embodiment of the present application to have a better noise reduction effect and sound quality effect, which improves user experience.

As shown in Figures 3 and 4, in the embodiment of the present application, a second speaker 13 and a third speaker 14 are arranged in the earphone body 10, the second speaker 13 is adjacent to the opening 10a, and the third speaker 14 is located in the middle of the earphone body 10 . The sound holes of the second speaker 13 and the third speaker 14 are both facing the opening 10a, so as to improve the sound guiding effect.

That is to say, the earphone 100 provided by the embodiment of the present application realizes the stacking design of at least three speakers in a limited space, and the earphone 100 provided by the embodiment of the present application can be Multiple speakers are designed for frequency division, so that each speaker can exhibit better audio performance, and then the earphone 100 has a better noise reduction effect and sound quality effect, which can improve user experience.

Further, the operating frequency bands of the first speaker 40 , the second speaker 13 and the third speaker 14 are different. Through the above settings, the above three speakers can be used to give full play to their respective audio advantages, and combined to achieve a better audio effect experience and noise reduction experience.

Here, the operating frequency bands of the first speaker 40 , the second speaker 13 and the third speaker 14 may or may not overlap, which is not limited in this application.

Optionally, the above three speakers include a low frequency speaker, a mid frequency speaker and a high frequency speaker.

Here, the low-frequency speaker's sound advantage lies in the low frequency, without taking into account the sound quality of other frequency bands (such as medium and high frequencies). The sound generation advantage of the mid-frequency speaker is in the mid-frequency, without taking into account the sound quality of other frequency bands (such as low and high frequencies). The sound generation advantage of the tweeter is high frequency, without taking into account the sound quality of other frequency bands (such as low and medium frequencies).

For example, the first loudspeaker 40 may be a mid-frequency loudspeaker, the dominance of sound production is at mid-frequency, and the sound production frequency is 1000-4000 Hz. The second loudspeaker 13 is a high-frequency loudspeaker, the advantage of sound generation is high frequency, and the sound generation frequency is 4000-20000 Hz. The third loudspeaker 14 is a low-frequency loudspeaker, which is dominant in low frequency, and the sound frequency is 200-1000 Hz. The above three speakers are combined to play their own audio advantages, so that the audio effect and noise reduction effect are better.

The sound outlet tube 21 needs to be inserted into the user's ear canal, so that the diameter of the sound outlet tube 21 cannot be set larger. In order to successfully install the first speaker 40 in the sound outlet tube 21, the first speaker 40 should choose a smaller one. The speaker, for example, the first speaker 40 is any one of a moving iron speaker, a flat magnetic speaker or a MEMS speaker.

The second loudspeaker 13 is adjacent to the opening 10a, and is located between the third loudspeaker 14 and the opening 10a. Considering that the second loudspeaker 13 should minimize the impact on the sound conduction of the third loudspeaker 14, the second loudspeaker 13 should also be selected to have a smaller volume. The small speaker, for example, the second speaker 13 is any one of a moving iron speaker, a flat magnetic speaker or a MEMS speaker.

The third loudspeaker 14 is located in the middle of the earphone body 10 and is subject to relatively small volume constraints. Therefore, the third loudspeaker 14 can be a dynamic loudspeaker with a large volume but low cost and outstanding sound quality.

Further, as shown in FIG. 3 and FIG. 4 , a microphone 15 is also provided in the earphone body 10 adjacent to the opening 10 a. The sound pickup hole of the microphone 15 faces the opening 10a. The microphone 15 is equivalent to the feed-back microphone in the FB microphone noise reduction system. The microphone 15 is used to pick up the sound in the ear canal of the user and transmit the sound signal to the noise reduction chip inside the earphone body 10 According to the sound signal, the noise reduction chip controls at least one of the first speaker 40, the second speaker 13 and the third speaker 14 to output an anti-phase sound wave equal to the ambient noise, so as to neutralize the noise and achieve a noise reduction effect.

Optionally, the earphone 100 provided in the embodiment of the present application further includes a feed-forward microphone (not shown in the figure), which is used to pick up the ambient sound of the outside world, and transmit the sound signal to the noise reduction device inside the earphone main body 10. chip, so that the earphone 100 provided by the embodiment of the present application has the function of hybrid noise reduction, and the noise reduction effect is better.

The mouthpiece 20 , a key component of the earphone 100 , will be described in detail below in conjunction with the accompanying drawings.

The mouthpiece 20 provided in the embodiment of the present application is used for conducting sound, and the mouthpiece 20 includes at least (for example, only) the sound outlet tube 21 . Considering the installation difficulty of the first loudspeaker 40, the sound outlet tube 21 can be made of a material with relatively stable performance (higher strength), so that the tube wall of the sound outlet tube 21 can be set as thin as possible to increase the size of the sound outlet tube. 21 provides enough space for the first speaker 40 to be installed. For example, the sound outlet tube 21 may be a metal piece, and the metal piece may be a stainless steel piece, a copper alloy piece, or an aluminum alloy piece, but is not limited thereto.

At this time, the sound outlet tube 21 can be installed and fixed on the opening 10a by any means such as clamping, welding, bonding, screwing, and riveting. For example, the sound outlet tube 21 can be installed on the opening 10a by means of ultrasonic welding.

The mouthpiece 20 in this application may only include the sound outlet tube 21 , or may further include other components, which is not limited in this application. FIG. 5 is a structural schematic diagram of the integrated structure of the mouthpiece 20 and the first speaker 40 .

As shown in Fig. 3, part a in Fig. 5 and part c in Fig. 5, the mouthpiece 20 provided by the embodiment of the present application also includes a mouthpiece fixed at the front end of the sound outlet tube 21 and limiting the position of the first loudspeaker 40. The sound outlet hole plate 23.

Specifically, the sound outlet orifice 23 can be fixedly covered on the front end of the sound outlet 21, so that the sound outlet 21 and the sound outlet orifice 23 integrally form a "cap-shaped" structure, and the sound outlet orifice 23 can support the first sound outlet. A loudspeaker 40 plays a position-limiting effect, preventing the front end of the first loudspeaker 40 from passing out to the outside of the sound outlet tube 21, for example, the front end of the first loudspeaker 40 (that is, the end with the sound outlet) can abut against the sound outlet hole plate On the inner surface of 23, a plurality of through holes are opened on the sound outlet hole plate 23, so as not to hinder the transmission of sound.

Optionally, the sound outlet tube 21 and the sound outlet hole plate 23 are formed into an integral structure through an integral molding process, so that the sound outlet mouthpiece 20 has higher mechanical strength, and can simplify the production process and save production costs.

For example, the integral forming process may be metal direct forming, for example, may be realized by forging, stamping or casting process.

For another example, metal powder may be used to form the above integrated structure through a powder metallurgy process.

Further, as shown in part b of FIG. 5 , the mouthpiece 20 also includes a hollow bracket 22 fixed on the rear end of the sound outlet tube 21 to limit the position of the first speaker 40 .

The hollow bracket 22 can limit the first loudspeaker 40 to prevent it from falling off from the rear end of the sound pipe 21. At the same time, it will not cause too much obstruction to the transmission of sound.

As shown in Figure 5, the first speaker 40 can be adapted to the length of the sound outlet pipe 21, so that when the first speaker 40 is installed inside the sound outlet pipe 21, the front end and the rear end of the first speaker 40 are respectively in contact with the sound outlet. The plate 23 and the inner surface of the hollow bracket 22 abut against each other, so that the first speaker 40 can be reliably fixed in the sound outlet tube 21 .

Optionally, the mouthpiece 20 (sound pipe 21 ) can be installed on the opening 10a. Through the above settings, the first speaker 40 can be installed in the mouthpiece 20 to form an integrated structure, and then installed on the opening 10a (ie, the earphone main body 10) as a whole, thereby reducing the installation difficulty of the first speaker 40 , can improve production efficiency.

For example, the first speaker 40 can be inserted from the rear end of the sound outlet tube 21, so that the front end of the first speaker 40 abuts against the inner surface of the sound outlet hole plate 23, and then the hollow bracket 22 is assembled on the sound outlet tube 21 , under the joint limitation of the sound outlet tube 21, the sound outlet hole plate 23 and the hollow bracket 22, the first loudspeaker 40 is reliably fixed in the sound outlet tube 21, and the above-mentioned components are assembled into an integrated structure, and then installed in the opening 10a On top of that, the first speaker 40 can be installed more conveniently and efficiently.

Optionally, a dust-proof mesh cloth can be arranged between the opening 10a and the sound outlet 20 (for example, the hollow bracket 22). internal.

Further, as shown in Fig. 2, Fig. 3 and Fig. 5, along the direction of the sound pipe 21 from back to front, the diameter of the sound pipe 21 is gradually reduced, and the hollow bracket 22 is covered at the rear end of the sound pipe 21 inside of the department. At this time, the sound outlet tube 21 and the sound outlet hole plate 23 are in the shape of a truncated cone as a whole, and the cross-sectional area of the rear end is greater than the area of the sound outlet hole plate 23. The installation and insertion of the first loudspeaker 40 can be facilitated by the above settings, and the hollow bracket The fixing of the first loudspeaker 40 can be realized after the cover 22 is placed on the inner side of the rear end of the sound outlet tube 21 .

Moreover, the sound outlet tube 21 adopts a "tapered" design, and holes are opened on the inclined surface (tube wall) to meet the sound output area requirements, and the "tapered" shape is placed in the center of the earplug 30, which does not affect the wearing comfort.

Optionally, the hollow bracket 22 can be installed on the sound outlet tube 21 by any means such as welding, bonding, screwing, clamping or riveting.

For example, the whole sound outlet 20 is made of metal material (that is, the hollow bracket 22 is also made of metal material). At this time, the installation of the hollow bracket 22 can be realized by welding or riveting.

As shown in Figure 5, the cross-sectional shape of the first loudspeaker 40 is a rectangle, and the cross-sectional shape of the sound output hole plate 23 is also made into a rectangle correspondingly. In other embodiments, the cross-sectional shape of the first loudspeaker 40 can also be a circle. Shape, ellipse, rhombus or trapezoid and other arbitrary shapes, which are not limited in this application.

FIG. 6 is a structural schematic diagram of another example in which the mouthpiece 20 and the first speaker 40 are integrally formed. As a specific example, as shown in part a in Figure 6 and part b in Figure 6, the cross-sectional shape of the first loudspeaker 40 is circular, and the cross-sectional shape of the sound outlet hole plate 23 is also set as a circle correspondingly shape.

Further, as shown in FIG. 1 and FIG. 3 , the earphone 100 also includes an earplug 30 sleeved on the outer periphery of the sound outlet tube 21 , the earplug 30 is made of elastic material, for example, the earplug 30 is made of soft rubber (such as silicone). The earplug 30 has a sound outlet 30a at the front end facing the user, and the sound emitted by the sound outlet tube 21 is transmitted to the user's ear canal through the sound outlet 30a. In the present application, the earphone 100 can be worn more firmly on the user's ear by providing the earplug 30 , and the earplug 30 can close the ear canal to reduce the interference of external noise on the sound output by the sound tube 21 .

Further, as shown in FIG. 3 , there is a sound guiding gap 30 b between the earplug 30 and the sound outlet tube 21 , and the sound guiding gap 30 b communicates with the opening 10 a and the sound outlet 30 a. The present application can increase the number of speakers of the earphone 100 by arranging the first speaker 40 in the sound outlet tube 21. The setting of the first speaker 40 may cause certain effects on the sound conduction of the second speaker 13 and the third speaker 14 in the earphone main body 10. In the embodiment of the present application, the sound conduction effect can be enhanced by setting the sound guide gap 30b communicating with the opening 10a and the sound outlet 30a.

The embodiment of the present application does not specifically limit how the sound guide gap 30b communicates with the opening 10a and the sound outlet 30a. The opening 10a and the sound outlet 30a can be directly connected through the sound guide gap 30b, or can be further realized through an intermediary.

In the embodiment of the present application, the sound outlet pipe 21 is provided with a plurality of through holes, and the through holes communicate with the sound guiding gap 30b and the opening 10a. The sound emitted by the second loudspeaker 13 and the third loudspeaker 14 can enter the sound outlet pipe 21 through the hollow part of the hollow bracket 22 in turn, then enter the sound guide gap 30b through the through hole provided by the sound outlet pipe 21, and finally conduct through the opening 10a into the user's ear canal.

At this time, the integrated structure formed by the sound outlet tube 21 and the sound outlet hole plate 23 is a hat-shaped (cone-shaped) hole network structure as a whole, and the hole network structure has sufficient mechanical strength and will not be easily deformed.

Fig. 7 is a cross-sectional view of another example of the earphone 100 provided by the embodiment of the present application. FIG. 8 is a structural schematic diagram of yet another example in which the mouthpiece 20 and the first speaker 40 form an integral structure.

With respect to the embodiment shown in the above-mentioned Fig. 1-Fig. 6, as shown in Fig. 7, part a in Fig. 8 and part b in Fig. 8, in this embodiment, along the sound outlet tube 21 from back to front direction, the diameter of the sound outlet tube 21 remains unchanged, and the hollow bracket 22 covers the rear end of the sound outlet tube 21 and exceeds the rear end of the sound outlet tube 21 . At this time, the sound outlet tube 21 has a columnar structure as a whole, the cross-sectional area of the sound outlet tube 21 is smaller than that of the hollow bracket 22 , and the rear end of the sound outlet tube 21 is installed on the hollow bracket 22 . The hollow bracket 22 covers the rear end of the sound outlet tube 21 and exceeds the rear end of the sound outlet tube 21 , so that the sound outlet 20 can be integrally installed on the earphone body 10 conveniently.

At this time, no through hole may be provided on the tube wall of the sound outlet tube 21, but the hollow part (through hole) of the hollow bracket 22 communicates with the sound guide gap 30b and the opening 10a to enhance sound conduction.

As shown in FIG. 8 , the cross-sectional shape of the first loudspeaker 40 is rectangular, and correspondingly, the cross-sectional shape of the sound outlet plate 23 is also rectangular. FIG. 9 is a structural schematic diagram of yet another example in which the mouthpiece 20 and the first speaker 40 form an integrated structure. As shown in part a in FIG. 9 and part b in FIG. 9 , the cross-sectional shape of the first loudspeaker 40 is circular, and correspondingly, the cross-sectional shape of the sound output hole plate 23 is also circular.

On the other hand, the embodiment of the present application also provides an earphone box assembly, the earphone box assembly includes an earphone box and the earphone 100 provided in any one of the foregoing embodiments, and the earphone box is used to accommodate the earphone 100 and charge the earphone 100 . When the earphone 100 is stored in the earphone box, and the electrical connector on the earphone 100 is in contact with the electrical connector on the earphone box, the earphone 100 can be charged through the current transmission function of the electrical connector.

Optionally, the earphone box assembly includes two earphones, and at least one earphone is the earphone 100 provided in any one of the foregoing embodiments.

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (22)

1. An earphone, characterized in that, comprising: an earphone main body (10), the earphone main body (10) having an opening (10a); A mouthpiece (20), the mouthpiece (20) is connected to the opening (10a), the mouthpiece (20) includes a pipe (21), and the pipe (21) A first loudspeaker (40) is provided, and the mouthpiece (20) is used for conducting the sound of at least one loudspeaker (40) disposed in the earphone main body (10) and the first loudspeaker (40) into the user's ear canal. 2. The earphone according to claim 1, characterized in that, the mouthpiece (20) also includes a mouthpiece fixed at the front end of the sound outlet tube (21) and limiting the first loudspeaker (40). sound outlet plate (23). 3. The earphone according to claim 1 or 2, characterized in that, the sound outlet (20) also includes a sound outlet fixed to the rear end of the sound outlet tube (21) and facing the first loudspeaker (40). ) to realize the hollow bracket (22) of the limit. 4. The earphone according to claim 3, characterized in that, the earphone also includes an earplug (30) sleeved on the outer periphery of the sound outlet tube (21), and the front end of the earplug (30) has a sound outlet. Mouth (30a). 5. The earphone according to claim 4, characterized in that, there is a sound guide gap (30b) between the earplug (30) and the sound outlet tube (21), and the sound guide gap (30b) communicates with all The opening (10a) and the sound outlet (30a). 6. The earphone according to claim 5, characterized in that, along the direction of the sound outlet pipe (21) from back to front, the diameter of the sound outlet pipe (21) gradually decreases, and the hollow bracket (22) capped on the inner side of the rear end of the sound outlet tube (21). 7. The earphone according to claim 6, characterized in that, the sound outlet tube (21) is provided with a plurality of through holes, and the through holes connect the sound guiding gap (30b) with the opening (10a ). 8. The earphone according to claim 5, characterized in that, along the direction of the sound outlet pipe (21) from back to front, the diameter of the sound outlet pipe (21) remains unchanged, and the hollowed out The bracket (22) covers the rear end of the sound outlet tube (21) and exceeds the rear end of the sound outlet tube (21). 9. The earphone according to claim 8, characterized in that, the hollow part of the hollow bracket (22) communicates with the sound guiding gap (30b) and the opening (10a). 10. The earphone according to any one of claims 1-9, characterized in that, the mouthpiece (20) is installed on the opening (10a). 11. The earphone according to any one of claims 3-9, characterized in that, the sound outlet tube (21), the first loudspeaker (40) and the hollow bracket (22) are assembled into one structure Afterwards, it is installed on the opening (10a). 12. The earphone according to any one of claims 1-11, characterized in that, the mouthpiece (20) is a metal piece. 13. The earphone according to any one of claims 2-9, characterized in that, the sound outlet tube (21) and the sound outlet hole plate (23) are formed into an integral structure by an integral molding process. 14. The earphone according to any one of claims 1-13, characterized in that the first loudspeaker (40) is any one of a moving iron loudspeaker, a flat magnetic loudspeaker or a MEMS loudspeaker . 15. The earphone according to any one of claims 1-14, characterized in that, a second loudspeaker (13) and a third loudspeaker (14) are arranged in the earphone main body (10), and the second loudspeaker (13) Adjacent to the opening (10a), the third speaker (14) is located in the middle of the earphone body (10). 16. The earphone according to claim 15, characterized in that, the second speaker (13) is a dynamic speaker. 17. The earphone according to claim 15 or 16, characterized in that the third loudspeaker (14) is any one of a moving iron loudspeaker, a flat magnetic loudspeaker or a MEMS loudspeaker. 18. The earphone according to any one of claims 15-17, characterized in that, the operating frequency bands of the first speaker (40), the second speaker (13) and the third speaker (14) vary. 19. The earphone according to any one of claims 1-18, characterized in that, a microphone (15) is further arranged in the earphone body (10) adjacent to the opening (10a). 20. The earphone according to claim 10 or 11, characterized in that, the mouthpiece (20) is installed on the opening (10a) through an ultrasonic welding process. 21. The earphone according to any one of claims 1-20, wherein the earphone is a true wireless stereo earphone. 22. An earphone box assembly, characterized by comprising an earphone box and the earphone according to any one of claims 1-21, the earphone box is used for accommodating the earphone and charging the earphone.

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