CN114095818A - Earphone set - Google Patents

Abstract

The application provides an earphone, including casing, separator and moving coil loudspeaker. The shell is provided with a sound outlet; the separator is arranged in the shell, the edge of the separator is in sealing connection with the inner wall of the shell so as to divide the inner space of the shell into a rear sound cavity relatively far away from the sound outlet and a front sound cavity relatively close to the sound outlet, and the separator is provided with an air release hole which is communicated with the front sound cavity and the rear sound cavity; the moving coil loudspeaker is arranged in the front sound cavity and is at least connected with the separator, and the moving coil loudspeaker is communicated with the air between the rear sound cavity through the air leakage hole. The earphone based on this application embodiment not only can improve the tone quality of earphone, can avoid the vibrating diaphragm of moving coil loudspeaker to break because of the too big amplitude moreover, and because back sound chamber and outside air intercommunication, consequently can make the atmospheric pressure that the user's eardrum received keep the equilibrium with outside air atmospheric pressure to improve the comfort level of user's eardrum.

Description

Earphone set

Technical Field

The application relates to the technical field of audio playing, in particular to an earphone.

Background

An earphone is an electroacoustic transducer that plays audio to be played by converting an electric signal into a sound signal. Earphones can be classified into moving-coil earphones, moving-iron earphones, coil-iron earphones, equal-magnetic earphones and the like according to the transduction mode. The volume of current earphone is little and tone quality remains to promote inadequately.

Disclosure of Invention

To at least partially solve the above problem, an embodiment of the present application provides an earphone including a housing, a partition, and a moving coil speaker. The shell is provided with a sound outlet; the separator is arranged in the shell, the edge of the separator is in sealing connection with the inner wall of the shell so as to divide the inner space of the shell into a rear sound cavity relatively far away from the sound outlet and a front sound cavity relatively close to the sound outlet, and the separator is provided with an air release hole which is communicated with the front sound cavity and the rear sound cavity; the moving coil loudspeaker is arranged in the front sound cavity and is at least connected with the separating piece, and the moving coil loudspeaker is communicated with the air between the rear sound cavities through the air leakage hole.

Earphone based on this application embodiment, divide the inner space of casing into preceding sound chamber and back sound chamber through setting up the separator, and set up disappointing hole in order to communicate preceding sound chamber and back sound chamber on the separator, make the atmospheric pressure in preceding sound chamber and the atmospheric pressure in the back sound chamber keep the equilibrium, thus, not only can improve the tone quality of earphone, and can avoid moving coil loudspeaker's vibrating diaphragm to break because of the too big amplitude, and because back sound chamber and outside air intercommunication, consequently can make atmospheric pressure and outside air atmospheric pressure that the user's eardrum received keep the equilibrium, thereby improve the comfort level of user's eardrum.

Further, the moving coil loudspeaker comprises a loudspeaker body and a loudspeaker rear cover. The loudspeaker body is arranged between the separating piece and the sound outlet, and a first air passage is formed between the loudspeaker body and the inner wall of the shell; the loudspeaker rear cover is arranged between the loudspeaker body and the separating piece, the loudspeaker body is covered with the loudspeaker rear cover, a second air passage is formed between the loudspeaker rear cover and the separating piece, and the second air passage is communicated with the first air passage and the air leakage hole respectively.

Based on above-mentioned embodiment, set up between loudspeaker body and separator through lid behind the design loudspeaker, and the lid fits the loudspeaker body, and on the one hand, the lid can play the guard action to the loudspeaker body behind the loudspeaker, and on the other hand sets up through lid and separator interval behind with the loudspeaker to form the second air flue, second air flue and disappointing hole intercommunication, and second air flue and first air flue intercommunication are in order to form airflow channel, thereby make the sound outlet can loop through first air flue, second air flue and disappointing hole and back sound chamber intercommunication.

Furthermore, the earphone further comprises a moving-iron loudspeaker, wherein the moving-iron loudspeaker is arranged in the front sound cavity and is connected with the loudspeaker body.

Based on the embodiment, the moving-iron loudspeaker is arranged in the front sound cavity, and the middle-high sound emitted by the moving-iron loudspeaker and the low sound emitted by the moving-coil loudspeaker are reverberated in the front sound cavity and enter human ears through the sound outlet, so that the sound emitted by the earphone has better sound quality; the moving coil loudspeaker and the moving coil loudspeaker are connected, so that the moving coil loudspeaker and the moving coil loudspeaker can be assembled more compactly, and the miniaturization of the shell and the earphone is facilitated.

Furthermore, an elastic part is arranged between the moving coil loudspeaker and the moving iron loudspeaker, and one end, far away from the sound outlet, of the moving iron loudspeaker is arranged in the elastic part.

Based on above-mentioned embodiment, can assemble better and fixed moving-iron loudspeaker through setting up the elastic component, the one end of keeping away from the sound outlet of moving-iron loudspeaker sets up in the elastic component to can realize the equipment of moving-iron loudspeaker and moving coil loudspeaker simply and conveniently with the help of the elastic component.

Further, in the second air flue, a protruding portion is arranged between the separating piece and the loudspeaker rear cover, and the protruding portion is arranged on the separating piece and/or the loudspeaker rear cover.

Based on above-mentioned embodiment, through setting up the bellying, can guarantee to have sufficient clearance between lid behind separator and the loudspeaker, guarantee that the second air flue has the circulation cross-section that is big enough to make the atmospheric pressure in the preceding sound intracavity and the atmospheric pressure in the back sound intracavity can rapid equalization.

Further, the loudspeaker body includes annular magnet, vibrating diaphragm and annular voice coil loudspeaker voice coil. The annular magnet is arranged on one side of the horn rear cover, which is far away from the separator, and the annular magnet is connected with the horn rear cover; the vibrating diaphragm is arranged between the loudspeaker rear cover and the annular magnet, and the edge of the vibrating diaphragm is connected with the annular magnet and/or the loudspeaker rear cover; annular voice coil loudspeaker voice coil and annular magnet coaxial setting, and annular voice coil loudspeaker voice coil is connected with the vibrating diaphragm towards one side surface of annular magnet.

Based on above-mentioned embodiment, annular voice coil loudspeaker voice coil and the coaxial setting of annular magnet, and annular voice coil loudspeaker voice coil is connected towards annular magnet's surface with the vibrating diaphragm, and when the electric current that lets in annular voice coil loudspeaker voice coil changed, the produced magnetic field of annular voice coil loudspeaker voice coil changed along with it, when the magnetic field that annular voice coil loudspeaker voice coil produced changes, the magnetic field of annular magnet and the interact in the magnetic field that annular voice coil loudspeaker voice coil produced for annular voice coil loudspeaker voice coil produces the vibration, then can drive the vibration of vibrating diaphragm through annular voice coil loudspeaker voice coil, thereby realize the vocal function of loudspeaker body.

Further, the earphone also comprises at least one feedback microphone arranged in the front sound cavity.

Based on the above embodiment, the feedback microphone has the function of receiving sound and reducing noise, so that the earphone can output better tone quality. Through setting up the feedback microphone in the preceding sound cavity for the audio mixing in the preceding sound cavity can directly be carried to the casing outside after making an uproar, in order to obtain better tone quality output.

Further, the feedback microphone is arranged on the elastic piece.

Based on the above-mentioned embodiment, the feedback microphone can be stably embedded in the elastic member, and at the same time, the extra occupied space of the feedback microphone in the front sound cavity can be reduced, so that the housing can be made smaller.

Furthermore, the shell is also provided with a balance hole which is communicated with the front sound cavity.

Based on above-mentioned embodiment, through having seted up balanced hole on the casing, balanced hole and preceding sound chamber intercommunication can realize the equilibrium of the intracavity atmospheric pressure in preceding sound chamber and external atmospheric pressure more fast, on this basis, also can make the atmospheric pressure in preceding sound chamber and the atmospheric pressure in the back sound chamber reach balanced state more fast, and the feedback microphone also can gather the ambient noise through balanced hole.

Furthermore, the air leakage holes and the balance holes are all covered with mesh cloth.

Based on above-mentioned embodiment, the screen cloth not only can prevent that outside debris from getting into the preceding sound intracavity, can adjust the sound output curve of earphone through the screen cloth of changing different mesh numbers moreover.

The embodiment of the application provides an earphone, divide the inner space of casing into preceding sound chamber and back sound chamber through setting up the separator, and set up disappointing hole in order to communicate preceding sound chamber and back sound chamber on the separator, make the atmospheric pressure in preceding sound chamber keep the equilibrium with the atmospheric pressure in back sound chamber, and thus, not only can improve the tone quality of earphone, and can avoid moving coil loudspeaker's vibrating diaphragm to break because of the too big amplitude, and because back sound chamber and outside air intercommunication, consequently can make atmospheric pressure and outside air atmospheric pressure that the user's eardrum received keep the equilibrium, thereby improve the comfort level of user's eardrum.

Drawings

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

Fig. 1 is a schematic partial sectional view of an earphone according to an embodiment of the present application;

fig. 2 is a schematic view of a partial cross-section of an earphone according to another embodiment of the present application;

fig. 3 is a schematic view of a perspective of a headset according to an embodiment of the present application;

FIG. 4 is a schematic view of a partially cut-away earphone according to an embodiment of the present application;

FIG. 5 is a schematic view of another perspective of a headset according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a perspective view of an earphone according to an embodiment of the present application;

fig. 7 is a schematic view of a partially cut-away structure of an earphone according to another embodiment of the present application;

fig. 8 is a schematic structural diagram of a supporting member according to an embodiment of the present application.

Description of the drawings: 1. an earphone; 10. a housing; 11. a sound outlet; 12. a front sound cavity; 13. a rear sound cavity; 14. an air flow channel; 141. a first air passage; 142. a second air passage; 15. a first positioning step; 16. a second positioning step; 20. a separator; 21. an air release hole; 22. an avoidance part; 221. avoiding holes; 23. sealing the connection part; 30. a moving coil horn; 31. a horn body; 311. a ring magnet; 312. vibrating diaphragm; 313. an annular voice coil; 32. a horn rear cover; 321. an opening part; 3211. a tone tuning hole; 322. a covering part; 323. a glue joint part; 324. a connecting portion; 40. a boss portion; 41. a first protrusion; 42. a first card slot; 43. a second protrusion; 44. a second card slot; 45. an avoidance groove; 50. a support member; 51; a sound outlet hole; 52. a support portion; 53. a receptacle portion; 531. a containing groove; 60. a moving-iron horn; 70. an elastic member; 71. embedding a groove; 80. a feedback microphone; 90. a flexible circuit board; 100. equalizing the holes; 110. and (4) screen cloth.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further 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.

In the correlation technique, moving coil earphone generally includes the shell and is located the moving coil unit of the casing of shell, separate into the inner space of shell through the moving coil unit and go out sound chamber and back sound chamber before mutually isolated, that is, use the moving coil unit as the border in the correlation technique, separate into the inner space of shell and go out sound chamber and back sound chamber before going out sound chamber, because it goes out sound chamber and back sound chamber isolated each other to go out the sound chamber before going out, in earphone sound production process, the atmospheric pressure in the preceding sound chamber is uneven with the atmospheric pressure in the back sound chamber, influence earphone tone quality, also lead to user's eardrum uncomfortable easily, the vibrating diaphragm that may cause the moving coil unit even breaks because of the amplitude is too big.

In order to solve the above technical problem, as shown in fig. 1, an embodiment of the present application provides an earphone 1, where the earphone 1 includes a housing 10, a partition 20, and a moving coil speaker 30.

The shape, material and size of the casing 10 may not be limited, for example, the casing 10 has a sound outlet 11, and the radial size of the casing 11 gradually decreases along the direction close to the sound outlet 11, so that an ear cap may be disposed at the end of the casing 10 having the sound outlet 11, so that the ear insertion portion (i.e. the portion including the ear cap) of the earphone 10 is adapted to the ear of a person and has better wearing comfort; for another example, the casing 10 may be made of a metal material (e.g., metal such as aluminum), the metal material may improve the overall rigidity of the casing 10, so as to prevent the casing 10 from being damaged easily, and meanwhile, the casing 10 may have a better protection effect on the components inside the casing 10 (e.g., the partition 20, the moving coil speaker 30, etc.), it may be understood that the casing 10 may also be made of other materials (e.g., plastic, etc.), and the plastic material is easy to mold and has low cost.

The sound outlet 11 of the housing 10 is used to transmit the sound emitted from the moving coil speaker 30 to the outside of the housing 10. It can be understood that sound outlet 11 is used as a connecting port between the inside of casing 10 and the outside of casing 10, sound emitted from the inside of casing 10 can be transmitted to the outside of casing 10 through sound outlet 11, then, dust and foreign matters such as particles outside casing 10 can also easily enter casing 10 through sound outlet 11, therefore, a protective structure can be arranged at sound outlet 11, and the protective structure can be provided with a plurality of holes for transmitting sound, so that sound emitted from earphone 1 can be transmitted through the holes of the protective structure, and meanwhile, the protective device can prevent external foreign matters from entering the inside of casing 10, thereby protecting the parts inside casing 10, and ensuring that the parts inside casing 10 are not affected by impurities entering earphone 1, and can work normally.

Specifically, the protective structure may include a protective net, the protective net may be fixedly connected to the wall of the sound outlet 11, the protective net has a plurality of holes for transmitting sound, and the holes may prevent impurities outside the casing 10 from entering the casing 10 while transmitting sound; the protector can also further include the acoustics screen cloth with the range upon range of setting of protection network, and the acoustics screen cloth is located the inboard of protection network and covers and locate sound outlet 11, and inside the acoustics screen cloth not only can further prevent outside debris from getting into casing 10 through sound outlet 11, can also compensate not enough of different frequency channel frequency responses, makes the sound of moving coil loudspeaker 30 output have more stable, more balanced tone quality.

The shape, material, and size of the partition 20 may not be limited as long as it can be disposed in the housing 10 and divide the inner space of the housing 10 into two cavities. The partition 20 is disposed in the casing 10, and an edge of the partition 20 is hermetically connected with an inner wall of the casing 10 to partition an inner space of the casing 10 into a rear sound chamber 13 and a front sound chamber 12 communicating with the sound outlet 11. It is understood that the aforementioned "sealed connection" is understood to mean: the two parts are connected and sealed at the connecting position, and the same applies below; in particular when the two components are the partition 20 and the casing 10, respectively, it can be understood that: the edge of the partition 20 is connected with the inner wall of the case 10, and the connection position between the edge of the partition 20 and the inner wall of the case 10 is sealed, that is, the front sound chamber 12 and the rear sound chamber 13 cannot communicate through the connection position between the edge of the partition 20 and the inner wall of the case 10. Specifically, the connection manner of the edge of the partition 20 and the inner wall of the housing 10 includes, but is not limited to, gluing, clipping, screwing, welding, etc. The edge of the partition 20 and the inner wall of the housing 10 may be sealed by glue or a sealing member (e.g., a rubber ring, etc.).

The partition 20 serves to partition the interior space of the casing 10 into a rear sound chamber 13 and a front sound chamber 12. It can be understood that by designing the sizes and shapes of the front sound cavity 12 and the rear sound cavity 13, the sound output by the earphone 1 can be modified, so as to generate different modification effects for the sounds corresponding to different audio frequencies. For example, since the front sound cavity 12 is communicated with the sound outlet 11, that is, the sound emitted by the moving coil speaker 30 is processed by the front sound cavity 12 and then transmitted to the outside of the casing 10 through the sound outlet 11, so that the sound corresponding to the audio frequency can be clearly transmitted to the human ear, the middle-high frequency part of the audio frequency can be mainly influenced by the front sound cavity 12 by adjusting the size and shape of the front sound cavity 12, and the middle-high frequency part of the audio frequency is highlighted, so that the audio frequency can be more easily recognized by the human ear; for another example, the rear cavity 13 has a small influence on high-frequency sound but a large influence on low-frequency part, so that the low-frequency part of the audio frequency can be more prominent by adjusting the size and shape of the cavity of the rear cavity 13, for example, the low-frequency part emitted by the moving coil loudspeaker 30 can be more balanced in terms of dive and volume.

The air release hole 21 is opened on the separator 20, and the air release hole 21 is not opened at the edge position of the separator 20, so as to avoid blocking the air release hole 21 when the edge of the separator 20 is connected with the inner wall of the housing 10 in a sealing manner. The air release hole 21 is used for communicating the front sound cavity 12 and the rear sound cavity 13, so that the air pressure in the front sound cavity 12 and the air pressure in the rear sound cavity 13 are kept in a balanced state.

The moving coil horn 30 is disposed in the front sound chamber 12 and may be connected to the partition 20, thereby fixing the moving coil horn 30 in the casing 10. Further, in another implementation, at least a portion of the edge of the moving coil horn 30 may be fixedly connected with the inner wall of the casing 10 to make the position of the moving coil horn 30 in the front sound cavity 12 more stable. In order to avoid the movable coil loudspeaker 30 from blocking the air release hole 21, an air flow channel 14 is arranged between the inner wall of the shell 10 corresponding to the movable coil loudspeaker 30 and the front sound cavity 12 and the partition 20, and air flow can pass through the air flow channel 14 and then is communicated with the rear sound cavity 13 through the air release hole 21, so that the front sound cavity 12 is communicated with the rear sound cavity 13. Because the front sound cavity 12 is communicated with the rear sound cavity 13 through the air flow channel 14 and the air release hole 21, the moving coil loudspeaker 30 is communicated with the rear sound cavity 13 through air, for example, a part of sound emitted by the moving coil loudspeaker 30 in the front sound cavity 12 is directly transmitted to the outside of the casing 10 through the sound outlet 11 through the front sound cavity 12, and meanwhile, a part of sound emitted by the moving coil loudspeaker 30 can be at least partially transmitted to the inside of the front sound cavity 12 through the air release hole 21 after flowing into the rear sound cavity 13, and then is transmitted to the outside of the casing 10 through the sound outlet 11, so that the low-frequency effect of the earphone 1 is improved.

In the related art, the moving coil unit (similar to the moving coil loudspeaker 30 in the embodiment of the present application) is used as a boundary to divide the internal space of the casing (similar to the casing 10 in the embodiment of the present application) into a front sound-out cavity (similar to the front sound cavity 12 in the embodiment of the present application) and a rear sound-out cavity (similar to the rear sound cavity 13 in the embodiment of the present application), in order to strictly divide the front sound-out cavity and the rear sound-out cavity, the edge of the moving coil unit needs to be connected with the inner wall of the casing in a sealing manner, and meanwhile, in order to ensure the integrity of the diaphragm in the moving coil unit (the diaphragm is generally circular), it is not appropriate to provide a gas release hole on the moving coil unit based on the sealing connection between the moving coil unit and the casing, because the gas release hole needs to be provided on the moving coil unit, which inevitably causes the diaphragm to be damaged, therefore, in the related art, the gas release hole cannot be provided on the moving coil unit, so that the front sound-out cavities on both sides of the moving coil unit are communicated with the rear sound-out cavity, the air pressure balance between the front sound-out cavity and the rear sound-out cavity is ensured.

The embodiment of the application is different from the related art in that: a partition 20 is additionally arranged in the shell 10, a front sound cavity 12 and a rear sound cavity 13 are divided by taking the partition 20 as a boundary, and an air leakage hole 21 is formed in the partition 20 to communicate the front sound cavity 12 with the rear sound cavity 13; through the edge with separator 20 and the inner wall sealing connection of casing 10, avoid preceding sound chamber 12 and back sound chamber 13 to pass through separator 20's edge intercommunication, set up moving coil loudspeaker 30 in preceding sound chamber 12 simultaneously to make the air intercommunication between moving coil loudspeaker 30 and the back sound chamber 13, so that moving coil loudspeaker 30 simultaneously with preceding sound chamber 12, back sound chamber 13 air intercommunication, guarantee moving coil loudspeaker 30's vocal effect. On this basis, in order to avoid the moving coil loudspeaker 30 from blocking the communication between the front sound cavity 12 and the rear sound cavity 13, the air flow channel 14 is formed between the inner wall of the shell 10 corresponding to the moving coil loudspeaker 30 and the front sound cavity 12 and the partition 20, the air flow in the front sound cavity 12 is communicated with the rear sound cavity 13 through the air flow channel 14 and then through the air release hole 21, thereby ensuring that the front sound cavity 12 and the rear sound cavity 13 are always communicated, and ensuring that the air pressure in the front sound cavity 12 and the air pressure in the rear sound cavity 13 are balanced, so the tone quality of the earphone 1 can be improved, and the diaphragm of the moving coil loudspeaker 30 can be prevented from being broken due to overlarge amplitude, and the rear sound cavity 13 is generally communicated with the external air, so that the air pressure on the eardrum of a user can be balanced with the air pressure of the external air, and the comfort level of the eardrum of the user can be improved. In addition, the moving coil horn 30 in the embodiment of the present application may also be a sound generating device such as a moving iron horn, a coil iron horn, or the like.

Specifically, as shown in fig. 2, the moving-coil loudspeaker 30 includes a loudspeaker body 31, and the loudspeaker body 31 may further include a ring magnet 311, a diaphragm 312, and a ring voice coil 313. The speaker body 31 is disposed between the spacer 20 and the sound outlet 11, and the diaphragm 312 reciprocates in the axial direction of the diaphragm 312 when vibrating so as to generate sound in the housing 10; the horn body 31 and the inner wall of the housing 10 corresponding to the front sound cavity 12 are spaced to form a first air passage 141, and the first air passage 141 may be formed in the vicinity of the entire circumference of the horn body 31 or in the vicinity of a part of the side surface of the horn body 31. Specifically, the first air duct 14 may be formed by a gap between the ring magnet 311 and the inner wall of the casing 10 corresponding to the front sound chamber 12.

Further, the moving coil loudspeaker 30 further includes a loudspeaker rear cover 32, the loudspeaker rear cover 32 is disposed between the loudspeaker body 31 and the partition 20, and covers the loudspeaker body 31, one part of the edge of the loudspeaker rear cover 32 is connected with the inner wall of the housing 10, and the other part is spaced apart from the inner wall of the housing 10, so as to ensure air communication between the air flow channel 14 and the air release hole 21. On one hand, the rear speaker cover 32 may protect the speaker body 31, and specifically, may protect components such as the ring magnet 311, the diaphragm 312, and the ring voice coil 313. On the other hand, by disposing the horn rear cover 32 at an interval from the partition 20 to form the second air passage 142, the second air passage 142 communicates with the air release hole 21, and since there is a gap between a part of the edge of the horn rear cover 32 and the housing 10, the second air passage 142 communicates with the first air passage 141 and forms the air flow passage 14, so that the sound outlet 11 can communicate with the rear sound cavity 13 sequentially through the first air passage 141, the second air passage 142, and the air release hole 21.

Specifically, the ring magnet 311 is in a hollow ring shape and is disposed on a side of the horn back cover 32 away from the partition 20, and the ring magnet 311 is fixedly connected to the horn back cover 32. The ring magnet 311 may have a gap with the inner wall of the casing 10 corresponding to the front sound cavity 12 to form the first air channel 141.

The diaphragm 312 is circular and disposed between the speaker back cover 32 and the ring magnet 311, the edge of the diaphragm 312 may be connected to the edge of the ring magnet 311 alone or connected to the edge of the speaker back cover 32 alone, and when the edge of the ring magnet 311 coincides with the projected portion of the edge of the speaker back cover 32 on the diaphragm 312, the edge of the diaphragm 312 may also be connected to the edge of the ring magnet 311 and the edge of the speaker back cover 32 at the same time.

The annular voice coil 313 is disposed coaxially with the annular magnet 311, and the annular voice coil 313 is connected to a surface of the diaphragm 312 facing the annular magnet 311. The voice coil 313 may be a coil, and when the current applied to the voice coil 313 changes, the magnetic field generated by the voice coil 313 changes. The ring magnet 311 may be a permanent magnet capable of generating a permanent magnetic field. When the magnetic field that annular voice coil 313 produced changes, the magnetic field of annular magnet 311 and the mutual action in magnetic field that annular voice coil 313 produced for annular voice coil 313 carries out reciprocating vibration along annular magnet 311's axial, and then can drive the vibration of vibrating diaphragm 312 through annular voice coil 131, thereby realizes loudspeaker body 31's vocal function.

Specifically, referring to fig. 3, the partition 20 includes an avoiding portion 22 located in the middle of the partition 20 and a sealing connection portion 23 surrounding the avoiding portion 22, and the sealing connection portion 23 is in sealing connection with the inner wall of the housing 10. The avoiding part 22 is provided with avoiding holes 221; lid 32 is including the trompil portion 321 that is located lid 32 middle part behind the loudspeaker, has seted up the tuning hole 3211 on the trompil portion 321, and tuning hole 3211 is via dodging hole 221 and back sound chamber 13 intercommunication to the sound that sends when making the vibrating diaphragm 312 vibrate can be via tuning hole 3211 and dodge hole 221 and transmit to back sound chamber 13, thereby improves the low frequency effect of earphone 1 through back sound chamber 13.

Further, the opening portion 321 is sleeved in the avoiding hole 221 of the avoiding portion 22, and the avoiding portion 22 is hermetically connected to the opening portion 321, so as to isolate the avoiding hole 221 and the sound adjusting hole 3211 from the second air passage 142, that is, isolate the sound transmission channel formed by the avoiding hole 221 and the sound adjusting hole 3211 and transmitting sound to the rear sound cavity 13 from the second air passage 142, thereby preventing the second air passage 142 from affecting sound transmission between the diaphragm 312 and the rear sound cavity 13. Specifically, the sealing connection between the avoiding portion 22 and the opening portion 321 can ensure that the audio has a good transmission effect, and when the avoiding portion 22 is not in sealing connection with the opening portion 321, the sound can enter the second air passage 142 through the sound adjusting hole 3211, so that the beam-closing effect of the rear sound cavity 13 on the sound is reduced; and the air current can flow into the back sound cavity 13 through the gap between the avoiding portion 22 and the opening portion 321, and noise is generated in the back sound cavity 13, which causes the sound quality output by the back sound cavity 13 to be poor, that is, the sealing connection between the avoiding portion 22 and the opening portion 321 can restrict the flow direction of the air in the air flow channel 14, so that the air can only enter and exit the back sound cavity 13 through the air leakage hole 21. It can be understood that the acoustic mesh cloth may be disposed at the tuning hole 3211, and the sound output curve of the earphone 1 may be adjusted by replacing acoustic mesh cloth with different mesh numbers.

Further, the avoiding hole 221 may be larger than the sound adjusting hole 3211, the hole diameter of the avoiding hole 221 is larger than the hole diameter of the sound adjusting hole 3211 by setting, so that the hole opening portion 321 can extend into the avoiding hole 221, and the hole opening portion 321 may protrude from other portions of the rear horn cover 32 and extend into the avoiding hole 221, so that the avoiding hole 221 may expose a portion of the hole opening portion 321, that is, the hole wall of the avoiding hole 221 contacts the surface of the hole opening portion 321, which facilitates the adhesive dispensing operation at the contact position of the hole wall of the avoiding hole 221 and the hole opening portion 321, thereby achieving the sealing connection between the avoiding portion 22 and the hole opening portion 321.

As shown in fig. 4, the rear cover 32 includes, in addition to the opening portion 321, a covering portion 322 surrounding the opening portion 321, an adhesive portion 323 surrounding the covering portion 322, and a connecting portion 324 disposed at an edge of a portion of the adhesive portion 323; the opening portion 321 and the covering portion 322 are both covered on the diaphragm 312, and the opening portion 321 is protruded to extend into the avoiding hole 221 compared to the covering portion 322; the adhesive part 323 extends from the covering part 322 to the position of the annular magnet 311 and is adhered to the annular magnet 311; the connecting portion 324 extends from a part of the glue portion 323 to a direction away from the ring magnet 311, and is fixedly connected with the inner wall of the housing 10, so that the fixed connection between the whole horn rear cover 32 and the inner wall of the housing 10 is realized through the connecting portion 324; further, since the connecting portion 324 is not provided at the edge of the other part of the glue portion 323, a gap exists between the other part of the glue portion 323 and the housing 10, that is, the part separates a part of the edge of the horn rear cover 32 from the housing 10, so that the first air passage 141 and the second air passage 142 communicate via the gap. Since the ring magnet 311 is bonded to the bonding portion 323, the diaphragm 312 is disposed between the speaker back cover 32 and the ring magnet 311, and the edge of the diaphragm 312 is connected to the ring magnet 311 and/or the speaker back cover 32, the diaphragm 312 and the ring magnet 311 are fixed in the front sound cavity 12 by the speaker back cover 32 being partially fixed to the inner wall of the housing 10.

Referring to fig. 4, corresponding to the sealing connection portion 23, a first positioning step 15 is disposed on the inner wall of the housing 10, the edge of the partition 20, that is, the sealing connection portion 23, is in sealing connection with the first positioning step 15, by disposing the first positioning step 15, the partition 20 can be conveniently assembled on the first positioning step 15 during assembly, and after the partition 20 is assembled on the first positioning step 15, the partition 20 is supported by the first positioning step 15, so that the mounting stability of the partition 20 can be improved, and when the partition 20 is in sealing connection with the inner wall of the housing 10 by glue, the first positioning step 15 can support more glue, so that the sealing stability between the partition 20 and the inner wall of the housing 10 can be improved.

Corresponding to connecting portion 324, be provided with second location step 16 on the inner wall of casing 10, the edge of lid 32 behind the loudspeaker also is that connecting portion 324 is connected with second location step 16, it can be understood, this connected mode is including but not limited to gluing, the joint, the butt etc., through setting up second location step 16, when the equipment, can conveniently assemble lid 32 behind the loudspeaker on second location step 16, and lid 32 behind the loudspeaker assembles behind second location step 16, bear behind the loudspeaker lid 32 and the loudspeaker body 31 of being connected with lid 32 behind the loudspeaker through second location step 16, can improve the installation stability of lid 32 behind loudspeaker body 31 and the loudspeaker.

Referring to fig. 4, in the second air channel 142, a protrusion 40 is disposed between the partition 20 and the horn back cover 32, and the protrusion 40 is disposed on the partition 20 alone, or on the horn back cover 32 alone, or on both the partition 20 and the horn back cover 32. When the partition 20 and the horn rear cover 32 are respectively provided with one protruding portion 40, the protruding portion 40 on the partition 20 and the protruding portion 40 on the horn rear cover 32 are in position correspondence and abut against each other. Through setting up bellying 40, can guarantee to have sufficient clearance between lid 32 behind separator 20 and the loudspeaker, guarantee that second air flue 142 has the sufficient big circulation cross-section to make the atmospheric pressure in preceding sound chamber 12 and the atmospheric pressure in the back sound chamber 13 can be balanced fast. Furthermore, the protruding portion 40 of the partition 20 and the protruding portion 40 of the rear speaker cover 32 can have a mutual limiting effect, so as to better ensure the stability of the connection between the partition 20 and the rear speaker cover 32.

As shown in fig. 5, further, one of the edge of the partitioning member 20 and the inner wall of the housing 10 is provided with a first protrusion 41, the other of the edge of the partitioning member 20 and the inner wall of the housing 10 is provided with a first locking groove 42, and the first protrusion 41 is locked with the first locking groove 42, that is, the partitioning member 20 is locked with the housing 10 through the first protrusion 41 and the first locking groove 42, so that the assembling between the partitioning member 20 and the housing 10 is facilitated, and after the assembling, the partitioning member 20 cannot rotate relative to the housing 10, thereby improving the mounting stability of the partitioning member 20 on the housing 10.

As shown in fig. 6, further, one of a part of the edge of the horn rear cover 32 connected to the housing 10 and the inner wall of the housing 10 corresponding to the front sound cavity 12 is provided with a second protrusion 43, the other of the part of the edge of the horn rear cover 32 connected to the housing 10 and the inner wall of the housing 10 corresponding to the front sound cavity 12 is provided with a second locking groove 44, and the second protrusion 43 is locked with the second locking groove 44, that is, the part of the edge of the horn rear cover 32 connected to the housing 10 and the inner wall of the housing 10 corresponding to the front sound cavity 12 are locked with the second protrusion 43 and the second locking groove 44, so that not only is the assembly between the horn rear cover 32 and the housing 10 facilitated, but also after the assembly, the horn rear cover 32 cannot rotate relative to the housing 10, thereby improving the installation stability of the horn rear cover 32 on the housing 10.

As shown in fig. 7 and 8, further, in order to improve the installation stability of the moving-coil loudspeaker 30 in the casing 10, the earphone 1 may further include a supporting member 50, the supporting member 50 is disposed on one side of the ring magnet 311 close to the sound outlet 11, and the ring magnet 311 is disposed on the supporting member 50, so that the ring magnet 311 is supported by the supporting member 50, and since the ring magnet 311 is connected to the diaphragm 312 and the loudspeaker back cover 32, and since the ring coil 313 is connected to a surface of the diaphragm 312 facing the ring magnet 311, the supporting member 50 also supports the diaphragm 312, the loudspeaker back cover 32 and the ring coil 313; in addition, a sound outlet hole 51 (see fig. 8) is opened in the support member 50, and sound generated by vibration of the diaphragm 312 is transmitted to the sound outlet 11 through the sound outlet hole 51. It is understood that the number, size, position and distribution of the sound emitting holes 51 may be set according to practical situations, and this embodiment is not limited thereto. It is understood that, in order for the sound generated by the vibration of the diaphragm 312 to be transmitted through the sound output hole 51, the ring magnet 311 should be disposed avoiding the position of the sound output hole 51.

With continuing reference to fig. 7-8, further, in order to improve the sound quality of the earphone 1, the earphone 1 may further include a single moving-iron horn 60 or a plurality of moving-iron horns 60, wherein the moving-iron horns 60 are disposed in the front sound cavity 12. The sound production effect of moving-iron loudspeaker 60 to the well high audio frequency is better, and moving-coil loudspeaker 30 is better to the sound production effect of bass frequency, and this embodiment will move-iron loudspeaker 60 and set up in preceding sound chamber 12, and the well high sound that moves-iron loudspeaker 60 sent and the bass that moving-coil loudspeaker 30 sent are reverberation in preceding sound chamber 12 to get into the people's ear through sound outlet 11, thereby make the sound that earphone 1 sent have better tone quality.

In the related art, a surface of a side of the diaphragm, where the annular voice coil is not disposed, faces the sound outlet, and a side (or called front side) of the diaphragm, where the annular voice coil is not disposed, serves as a sound generating position (or called front side) for generating sound. In the embodiment, as can be known from the foregoing description, the surface of the side of the diaphragm 312 where the annular voice coil 313 is disposed faces the sound outlet 11, that is, the diaphragm 312 adopts the side (or called back) where the annular voice coil 313 is disposed as a sound emitting position (or called back sound emitting), so that the moving-iron speaker 60 is closer to the sound emitting position of the diaphragm 312, the phase difference of the sound output by the moving-iron speaker 60 and the diaphragm 312 can be reduced, and the sound quality of the earphone 1 is improved.

Specifically, referring to fig. 7 and 8, the supporting member 50 further includes a supporting portion 52 and a receiving portion 53. The supporting portion 52 is annularly arranged and connected with the inner wall of the casing 10, and the annular magnet 311 is arranged on the surface of the supporting portion 52 away from the sound outlet 11 so as to support the annular magnet 311 through the supporting portion 52; the accommodating portion 53 is connected to the inner edge of the supporting portion 52, the ring-shaped magnet 311 is disposed around the accommodating portion 53 and located on the supporting portion 52, the accommodating portion 53 is provided with an accommodating groove 531, a notch of the accommodating groove 531 is disposed toward the sound outlet 11, and compared with the moving-coil speaker 30, the volume of the moving-coil speaker 60 is smaller, so that one end of the moving-coil speaker 60 away from the sound outlet 11 is accommodated in the accommodating groove 531, and since the ring-shaped magnet 311 is disposed around the accommodating portion 53, and in addition, one end of the moving-coil speaker 60 away from the sound outlet 11 is accommodated in the accommodating groove 531, one end of the moving-coil speaker 60 away from the sound outlet 11 is actually accommodated in the ring-shaped magnet 311, that is, the moving-coil speaker 60 is partially accommodated in the moving-coil speaker 30, so that the moving-coil speaker 60 and the moving-coil speaker 30 can be assembled more compactly, which is beneficial to miniaturization of the housing 10 and the earphone 1. The sound outlet hole 51 is opened on the supporting portion 52 to avoid being blocked by the iron horn 60 when the sound outlet hole 51 is opened on the accommodating portion 53. The ring magnet 311 is disposed on the supporting portion 52 and avoids the sound outlet hole 51, so that the sound generated by the diaphragm 312 is transmitted through the sound outlet hole 51.

It can be understood that, one end of the ring magnet 311 can be connected with the supporting portion 52 in a sealing manner, and the other end of the ring magnet 311 can be connected with the speaker rear cover 32 in a sealing manner, so that the supporting member 50, the ring magnet 311, the vibrating diaphragm 312, the ring voice coil 313 and the speaker rear cover 32 form a sealed moving coil speaker module, which is communicated with the rear sound cavity 13 through the sound adjusting hole 3211 of the speaker rear cover 32, and communicated with the front sound cavity 12 through the sound outlet hole 51 of the supporting portion 52, so that when the earphone 1 is assembled, the moving coil speaker module is directly installed on the first positioning step 15, thereby avoiding installing the supporting member 50, the ring magnet 311, the vibrating diaphragm 312, the ring voice coil 313 and the speaker rear cover 32 one by one, and improving the assembling efficiency of the earphone 1.

With reference to fig. 7, in order to better assemble and fix the moving-iron speaker 60 and the moving-coil speaker 30, the earphone 1 further includes an elastic member 70, the cross-sectional shape of the elastic member 70 may be U-shaped, the opening of the elastic member 70 faces the sound outlet 11, the elastic member 70 is embedded in the accommodating groove 531, and one end of the moving-iron speaker 60 away from the sound outlet 11 is accommodated in the elastic member 70, so that the elastic member 70 abuts against the groove wall of the accommodating groove 531 and achieves interference fit; the elastic member 70 has an embedding groove 71, and the embedding groove 71 is formed to make the elastic member 70 more easily deformed and more easily installed in the accommodating groove 531 of the supporting member 50, and also can be used to embed the end of the moving-iron horn 60 away from the sound outlet 11 in the embedding groove 71 and be in interference fit with the groove wall of the embedding groove 71, so that the assembly of the elastic member 70 and the moving-iron horn 60 can be simply realized.

As shown in fig. 7, the headset 1 further includes a feedback microphone 80 and a flexible circuit board 90, the feedback microphone 80 being embedded in the elastic member 70; the flexible circuit board 90 extends from the rear sound cavity 13 to the front sound cavity 12, and the flexible circuit board 90 is electrically connected to the annular voice coil 313, the moving-iron loudspeaker 60 and the feedback microphone 80.

The feedback microphone 80 is directly embedded in the elastic member 70, which not only facilitates installation, but also does not occupy additional space of the front sound cavity 12. The feedback microphone 80 can be used for collecting environmental noise, and the collected environmental noise signal is transmitted to the processor of the earphone 1 through the flexible circuit board 90, or transmitted to the processor of the audio playing terminal connected with the earphone 1, the processor performs real-time operation, the audio signal with opposite phase and same amplitude is transmitted to the moving coil loudspeaker 30 and the moving iron loudspeaker 60 through the flexible circuit board 90, and the corresponding audio signal is played through the moving coil loudspeaker 30 and the moving iron loudspeaker 60 to offset the environmental noise, so that the active noise reduction effect is achieved. The flexible circuit board 90 has the characteristics of high wiring density, light weight, thin thickness and good bending property, and can be bent and wired according to actual conditions, so that the electrical connection between the annular voice coil 313, the moving-iron loudspeaker 60 and the feedback microphone 80 can be realized through one flexible circuit board 90.

Referring to fig. 3, correspondingly, the avoidance grooves 45 are formed on a portion of the edge of the speaker back cover 32 and a portion of the edge of the partition 20, so that the flexible circuit board 90 can be electrically connected to the processor of the earphone 1 in the back sound cavity 13, and the flexible circuit board 90 can extend from the back sound cavity 13 to the front sound cavity 12 through the avoidance grooves 45 to be electrically connected to the annular voice coil 313 in the front sound cavity 12, the moving-iron speaker 60, and the feedback microphone 80. It will be understood that the escape slot 45 on the edge of the partition 20 is sealed after the flexible circuit board 90 passes through it, so as to prevent the front and rear sound chambers 12 and 13 from communicating through the escape slot 45.

Because the air release hole 21 is far from the front sound cavity 12, in order to more quickly make the air pressure in the front sound cavity 12 and the air pressure of the external air reach the equilibrium state, further, as shown in fig. 7, an equilibrium hole 100 communicated with the front sound cavity 12 is further formed in the shell 10, and because the equilibrium hole 100 is directly communicated with the front sound cavity 12, the air pressure in the front sound cavity 12 and the air pressure of the external air can quickly reach the equilibrium state, and on the basis, the air pressure in the front sound cavity 12 and the air pressure in the rear sound cavity 13 can also quickly reach the equilibrium state. In addition, the feedback microphone 80 may collect ambient noise through the equalizing aperture 100. Furthermore, the air release holes 21 and the equalizing holes 100 are respectively covered with the mesh cloth 110, and the mesh cloth 110 can not only prevent external sundries from entering the front sound cavity 12, but also adjust the sound output curve of the earphone 1 by replacing mesh cloth 110 with different meshes.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar parts; in the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.

Claims (10)

1. An earphone, characterized in that the earphone comprises:

a housing having a sound outlet;

the separator is arranged in the shell, the edge of the separator is in sealing connection with the inner wall of the shell so as to separate the inner space of the shell into a rear sound cavity relatively far away from the sound outlet and a front sound cavity relatively close to the sound outlet, the separator is provided with a gas release hole, and the gas release hole is communicated with the front sound cavity and the rear sound cavity;

moving coil loudspeaker, moving coil loudspeaker set up in preceding sound intracavity and at least with the separator is connected, moving coil loudspeaker pass through the hole of disappointing and with air intercommunication between the back sound chamber.

2. The headset of claim 1, wherein the moving coil speaker comprises:

the loudspeaker body is arranged between the separating piece and the sound outlet, and a first air passage is formed between the loudspeaker body and the inner wall of the shell;

lid behind the loudspeaker, behind the loudspeaker lid set up in the loudspeaker body with between the separator, and the lid fits on the loudspeaker body, behind the loudspeaker lid with be formed with the second air flue between the separator, the second air flue respectively with first air flue the hole intercommunication loses heart.

3. The headphone of claim 2 further comprising a moving-iron speaker disposed within the front cavity and connected to the speaker body.

4. The earphone as claimed in claim 3, wherein an elastic member is disposed between the moving coil speaker and the moving-iron speaker, and an end of the moving-iron speaker far from the sound outlet is disposed in the elastic member.

5. The earphone according to claim 2, wherein a protrusion is provided between the partition and the horn back cover in the second air passage, the protrusion being provided on the partition and/or the horn back cover.

6. The earphone according to claim 2, wherein the speaker body comprises:

the annular magnet is arranged on one side, away from the partition piece, of the horn rear cover and is connected with the horn rear cover;

the vibrating diaphragm is arranged between the loudspeaker rear cover and the annular magnet, and the edge of the vibrating diaphragm is connected with the annular magnet and/or the loudspeaker rear cover;

and the annular voice coil is coaxially arranged with the annular magnet, and the annular voice coil is connected with the vibrating diaphragm towards one side surface of the annular magnet.

7. The headset of claim 4, wherein the headset further comprises:

and the feedback microphone is arranged in the front sound cavity.

8. The headset of claim 7, wherein the feedback microphone is disposed on the resilient member.

9. The earphone according to claim 1 wherein said housing further defines an equalizing aperture, said equalizing aperture communicating with said front acoustic cavity.

10. The earphone according to claim 1 wherein the relief hole is covered with a mesh.

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