CN111526448A - Environment sound receiving controllable electromagnetic type music earphone - Google Patents

Environment sound receiving controllable electromagnetic type music earphone Download PDF

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Publication number
CN111526448A
CN111526448A CN202010390845.1A CN202010390845A CN111526448A CN 111526448 A CN111526448 A CN 111526448A CN 202010390845 A CN202010390845 A CN 202010390845A CN 111526448 A CN111526448 A CN 111526448A
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China
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fixedly connected
sound
electromagnetic
shell
music
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CN202010390845.1A
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Chinese (zh)
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赵祖齐
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Priority to CN202010390845.1A priority Critical patent/CN111526448A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041—Mechanical or electronic switches, or control elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/12—Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Headphones And Earphones (AREA)

Abstract

The invention discloses an electromagnetic music earphone with controllable environmental sound receiving, which comprises a shell, wherein the side wall of the shell is provided with a plurality of sound transmitting holes, the inner walls of the sound transmitting holes are fixedly connected with a dust screen, the inner wall of the shell is fixedly connected with a permanent magnet, the permanent magnet divides the space inside the shell into a music area on the left side and an environmental sound area on the right side, two side walls of the permanent magnet and the inner wall of the shell are fixedly connected with two annular plates together, the inner ring of the annular plate on the left side is fixedly connected with a first metal vibrating diaphragm, the inner ring of the annular plate on the left side is fixedly connected with a voice coil, and the voice coil; the casing right side wall is equipped with a plurality of sound receiving holes, is located the right side annular plate inner circle fixedly connected with second metal vibrating diaphragm. The invention can ensure the music experience of the user, and can clearly hear the environmental sound while ensuring the user to hear the music according to the requirements of the user, thereby facilitating the user to carry out other activities.

Description

Environment sound receiving controllable electromagnetic type music earphone
Technical Field
The invention relates to the technical field of electronic equipment, in particular to an electromagnetic music earphone with controllable environmental sound receiving.
Background
The earphone is a commonly used electronic entertainment device, especially for young people, music earphones are often used to enjoy music, but the sound insulation effect of different music earphones is different, and the existing music earphones have the following problems:
1. the earphone with a good sound insulation effect can enable a user to be immersed in music when the earphone is worn, the user can hardly hear external environment sound, the user can better enjoy the music, but when the user needs to receive the environment sound, for example, when the user crosses a road or communicates with other people, the user can not answer other people in time or the user is dangerous when crossing the road if the user cannot hear the environment sound;
2. the not good earphone of syllable-dividing effect, when wearing, although can hear the environment sound, can influence user's music and experience, the user is when appreciating the music, just is disturbed by external world easily, and in addition, the music of earphone also can transmit the environment, causes the influence to other people.
Therefore, it is desirable to design an electromagnetic music headphone with controllable ambient sound reception to solve the above problems.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an electromagnetic music earphone with controllable environmental sound receiving.
In order to achieve the purpose, the invention adopts the following technical scheme:
an environment sound receiving controllable electromagnetic type music earphone comprises a shell, wherein a plurality of sound transmission holes are formed in the side wall of the shell, dust screens are fixedly connected to the inner walls of the sound transmission holes, a permanent magnet is fixedly connected to the inner wall of the shell and divides the space inside the shell into a left music area and a right environment sound area, two annular plates are fixedly connected to two side walls of the permanent magnet and the inner wall of the shell together, a first metal vibrating diaphragm is fixedly connected to the inner ring of the annular plate on the left side, a voice coil is fixedly connected to the inner ring of the annular plate on the left side, and the voice coil is electrically connected with an earphone circuit;
the right side wall of the shell is provided with a plurality of sound receiving holes, the inner ring of the annular plate positioned on the right side is fixedly connected with a second metal vibrating diaphragm, the inner ring of the annular plate positioned on the right side is fixedly connected with two mounting plates, the opposite side walls of the two mounting plates are fixedly connected with a sound pickup film together, and the side wall of the sound pickup film is fixedly connected with a plurality of electromagnetic sheets;
the inside control mechanism who is used for controlling a plurality of electromagnetism piece electric current break-make that is equipped with of environment sound zone, control mechanism includes the fixed plate of fixed connection at the shell inner wall, the inside control chamber that is equipped with of fixed plate, two conducting blocks of control intracavity wall fixedly connected with, the inside carousel that is equipped with of control chamber, the fixed two control blocks that inlay of carousel lateral wall, carousel lateral wall fixedly connected with damping pivot, the damping pivot runs through shell lateral wall and fixedly connected with knob, is located the lower extreme the small-size rectifier of mounting panel lateral wall fixedly connected with, small-size rectifier, two control blocks, two conducting blocks, a plurality of electromagnetism pieces and earphone circuit electric connection.
Preferably, the electromagnetic pieces are connected from top to bottom through a wire, the electromagnetic piece positioned at the uppermost end is connected with the conductive block at the upper end, the electromagnetic piece positioned at the lower end is connected with the small rectifier, the small rectifier is connected with the earphone circuit, the two control blocks are electrically connected, and the conductive block positioned at the lower end is connected with the earphone circuit.
Preferably, the magnetic poles of the electromagnetic sheets opposite to the permanent magnet are all heteropolarity, and the second metal diaphragm is located between the electromagnetic sheets and the permanent magnet.
Preferably, the two conductive blocks and the two control blocks are staggered from top to bottom, and the two conductive blocks are not in contact with the two control blocks.
Preferably, the damping rotating shaft is far away from one end of the rotating disc and is fixedly connected with a rotating plate, and two openings are formed in the side wall of the rotating plate.
Preferably, the distance between the circle centers of the two sound receiving holes and the circle center of the cross section of the damping rotating shaft is unequal, and the two openings and the two sound receiving holes are arranged in a staggered mode from top to bottom.
Preferably, the rotating plate is attached to the side wall of the housing, and the rotating plate is made of a sound insulation material.
The invention has the following beneficial effects:
1. compared with the prior art, the music box is provided with the control mechanism, when a user does not need to receive the environmental sound, the circuit of the control mechanism is disconnected, the user can only hear the music generated by the vibration of the first metal vibrating diaphragm, the external environmental sound cannot be heard, and the music experience of the user can be ensured;
2. compared with the prior art, when a user needs to receive environmental sound, the knob is rotated to enable the control mechanism circuit to be conducted, the electromagnetic sheet is electrified to generate magnetism, the pickup membrane vibrates during the environmental sound, and the electromagnetic sheet is further vibrated, so that the second metal vibrating membrane is driven to vibrate, the second metal vibrating membrane transmits the environmental sound to the ear of the user, the user can be ensured to clearly hear the environmental sound while hearing the musical sound, and the user can conveniently perform other activities;
3. compared with the prior art, the invention can control the circulation of the sound receiving hole and the opening by rotating the rotating plate, and prevent weak environmental sound from directly entering the music zone through the environmental sound zone when a user does not need to receive the environmental sound, thereby further ensuring the music experience of the user.
Drawings
Fig. 1 is a schematic structural diagram of an electromagnetic music earphone with controllable ambient sound receiving function according to the present invention;
fig. 2 is an enlarged view of a structure at a position a of an electromagnetic music earphone with controllable ambient sound reception according to the present invention;
fig. 3 is a schematic structural diagram of an environment sound receiving controllable electromagnetic music earphone according to the present invention;
fig. 4 is an enlarged view of a structure at a position B of the electromagnetic music earphone with controllable ambient sound reception according to the present invention;
fig. 5 is a schematic structural diagram of an electromagnetic music earphone with controllable ambient sound receiving according to embodiment 2 of the present invention.
In the figure: the loudspeaker comprises a shell 1, sound transmission holes 2, a dust screen 3, an annular plate 4, a permanent magnet 5, a first metal vibrating diaphragm 6, a voice coil 7, a music zone 8, an environmental sound zone 9, a second metal vibrating diaphragm 10, a miniature rectifier 11, a sound receiving hole 12, a mounting plate 13, an electromagnetic sheet 14, a sound pickup film 15, a fixing plate 16, a control cavity 17, a conductive block 18, a control block 19, a turntable 20, a knob 21, a rotating plate 22 and an opening 23.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-4, an electromagnetic music earphone with controllable environmental sound receiving function comprises a casing 1, further, the casing 1 is made of sound insulation material, on one hand, the music sound is ensured not to be interfered by the external environmental sound, on the other hand, the music sound is prevented from affecting other people, the side wall of the casing 1 is provided with a plurality of sound transmission holes 2, the inner walls of the plurality of sound transmission holes 2 are fixedly connected with a dust screen 3, the inner wall of the casing 1 is fixedly connected with a permanent magnet 5, the permanent magnet 5 divides the space inside the casing 1 into a left music sound area 8 and a right environmental sound area 9, two annular plates 4 are fixedly connected with the two side walls of the permanent magnet 5 and the inner wall of the casing 1, a first metal vibrating diaphragm 6 is fixedly connected with the inner ring of the left annular plate 4, the first metal vibrating diaphragm 6 and a second metal vibrating diaphragm 10 below are magnesium dome vibrating, the voice coil 7 is a coil passing through the audio current, and the voice coil 7 is electrically connected with the earphone circuit.
The 1 right side wall of shell is equipped with a plurality of sound receiving holes 12, be located 4 inner circles fixedly connected with second metal vibrating diaphragm 10 of annular plate on right side, be located two mounting panels 13 of 4 inner circles fixedly connected with of annular plate on right side, the common fixedly connected with sound picking-up membrane 15 of the lateral wall that two mounting panels 13 are relative, sound picking-up membrane 15 can pick up the audio frequency in the environment and produce the vibration that corresponds the frequency, a plurality of electromagnetic pieces 14 of sound picking-up membrane 15 lateral wall fixedly connected with, a plurality of electromagnetic pieces 14 are heteropole with the magnetic pole that permanent magnet 5 is relative, second metal vibrating diaphragm 10 is located between a plurality of electromagnetic pieces 14 and permanent magnet 5.
The inside control mechanism that is used for controlling the break-make of a plurality of electromagnetic pieces 14 electric current that is equipped with of environment sound zone 9, control mechanism includes fixed plate 16 of fixed connection at shell 1 inner wall, the inside control chamber 17 that is equipped with of fixed plate 16, two conducting blocks 18 of control chamber 17 inner wall fixedly connected with, the inside carousel 20 that is equipped with of control chamber 17, carousel 20 lateral wall is fixed to inlay and is equipped with two control blocks 19, two control blocks 19 are made by conducting material, two conducting blocks 18 and two control blocks 19 top-down crisscross settings, furtherly, the distance of two conducting blocks 18 to the 20 cross sections of carousel through the perpendicular bisector of centre of a circle is LOn the upper partAnd LLower partThe distances from the two control blocks 19 to the perpendicular bisector of the cross section of the turntable 20 passing through the center of the circle are SOn the upper partAnd SLower partAnd L isOn the upper part＝SLower part，LLower part＝SOn the upper partTwo conductive blocks 18 and two control blocks 19 all contactless, 20 lateral walls fixedly connected with damping pivot of carousel, the damping pivot runs through shell 1 lateral wall and fixedly connected with knob 21, and further, can set up the sign on knob 21, convenience of customers can accurately rotate knob 21 suitable angle.
The side wall of the mounting plate 13 at the lower end is fixedly connected with a small rectifier 11 which can convert alternating current into direct current, and because the audio current in the earphone is alternating current, therefore, in order to prevent the alternating current in the earphone from influencing the magnetism of the electromagnetic sheet 14 and convert the alternating current into the direct current, the miniature rectifier 11, the two control blocks 19, the two conductive blocks 18 and the electromagnetic sheets 14 are electrically connected with the earphone circuit, the electromagnetic sheets 14 are connected with the conductive block 18 at the uppermost end from top to bottom through a lead, the electromagnetic sheet 14 at the lower end is connected with the miniature rectifier 11, the miniature rectifier 11 is connected with the earphone circuit, the two control blocks 19 are electrically connected, and the conductive block 18 at the lower end is connected with the earphone circuit in a specific connection mode of lead connection.
When the earphone is used, in an initial state, the conductive block 18 is not in contact with the control block 19, at the moment, the audio current of the earphone passes through the voice coil 7, and the strength of the audio current can be changed, so that the magnetism generated by the voice coil 7 can also be changed, so that under the combined action of the voice coil 7 and the permanent magnet 5, the magnetic force received by the first metal vibrating diaphragm 6 can also be changed, and further the first metal vibrating diaphragm 6 is caused to vibrate, so that musical tones are generated and transmitted to the ears of a user, at the moment, the user can immerse music and can hardly receive external environmental sounds.
When the user needs to receive the external environment sound, the knob 21 can be rotated one hundred eighty degrees, so that the control block 19 at the lower end is contacted with the conductive block 18 at the upper end, meanwhile, the control block 19 at the upper end is contacted with the conductive block 18 at the lower end, at the moment, the circuit of the control mechanism is in a conducting state, the plurality of electromagnetic sheets 14 are electrified to generate magnetism, external environmental sound is transmitted to the sound pickup film 15, the sound pickup film 15 is vibrated, and further the electromagnetic sheet 14 vibrates, the distance between the electromagnetic sheet 14 and the permanent magnet 5 changes in the vibration process, so that the acting force of the permanent magnet 5 and the electromagnetic sheet 14 on the second metal diaphragm 10 is changed, and the second metal diaphragm 10 is vibrated to transmit the environmental sound to the ear of the user, and at this time, the user can not only hear the music in the earphone, but also clearly hear the external environment sound.
It should be noted that the factor of musical sound generation is that the magnetic strength of the voice coil 7 changes due to the change of the current in the voice coil 7, and then the first metal diaphragm 6 vibrates, and the factor of environmental sound generation is that the magnetic force applied to the second metal diaphragm 10 changes due to the change of the position of the electromagnetic plate 14, and then the second metal diaphragm 10 vibrates.
Example 2
Referring to fig. 5, one end of the damping rotating shaft, which is far away from the rotating disc 20, is fixedly connected with a rotating plate 22, the side wall of the rotating plate 22 is provided with two openings 23, the distances between the circle centers of the two sound receiving holes 12 and the circle center of the cross section of the damping rotating shaft are not equal, the two openings 23 and the two sound receiving holes 12 are staggered from top to bottom, and the positions of the openings 23 and the sound receiving holes 12 are distributed similarly to the positions of the conductive block 18 and the control block 19 in embodiment 1.
The rotating plate 22 is attached to the side wall of the housing 1, and the rotating plate 22 is made of a sound insulating material.
In this embodiment, when a user needs to receive an environmental sound, the rotating plate 22 is rotated to make the sound receiving hole 12 coincide with the opening 23, the environmental sound can enter the environmental sound area 9 through the sound receiving hole 12 and the opening 23, and the sound pickup film 15 vibrates, so that the electromagnetic sheet 14 vibrates, and the second metal diaphragm 10 vibrates to generate the environmental sound.
Compared with the embodiment 1, in the embodiment, when the user does not need to receive the environmental sound, the turning plate 22 can block the sound receiving hole 12, so that the external weak environmental sound is prevented from directly entering the music zone 8 through the environmental sound zone 9, the sound insulation effect of the earphone is further ensured, and the user can be immersed in music more conveniently.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (7)

1. The utility model provides an environment sound receives controllable type electromagnetic type music earphone, includes shell (1), shell (1) lateral wall is equipped with a plurality of sound transmission holes (2), and is a plurality of sound transmission holes (2) inner wall equal fixedly connected with dust screen (3), its characterized in that: the inner wall of the shell (1) is fixedly connected with a permanent magnet (5), the permanent magnet (5) divides the space inside the shell (1) into a left music area (8) and a right environment sound area (9), two side walls of the permanent magnet (5) and the inner wall of the shell (1) are fixedly connected with two annular plates (4) together, the inner ring of the annular plate (4) positioned on the left side is fixedly connected with a first metal vibrating diaphragm (6), the inner ring of the annular plate (4) positioned on the left side is fixedly connected with a voice coil (7), and the voice coil (7) is electrically connected with an earphone circuit;
the right side wall of the shell (1) is provided with a plurality of sound receiving holes (12), the inner ring of the annular plate (4) on the right side is fixedly connected with a second metal vibrating diaphragm (10), the inner ring of the annular plate (4) on the right side is fixedly connected with two mounting plates (13), the opposite side walls of the two mounting plates (13) are fixedly connected with a sound picking-up film (15) together, and the side wall of the sound picking-up film (15) is fixedly connected with a plurality of electromagnetic sheets (14);
a control mechanism for controlling the on-off of the current of the electromagnetic sheets (14) is arranged in the environment sound zone (9), the control mechanism comprises a fixed plate (16) fixedly connected with the inner wall of the shell (1), a control cavity (17) is arranged in the fixing plate (16), two conductive blocks (18) are fixedly connected with the inner wall of the control cavity (17), a turntable (20) is arranged in the control cavity (17), two control blocks (19) are fixedly embedded in the side wall of the turntable (20), the side wall of the rotary table (20) is fixedly connected with a damping rotating shaft which penetrates through the side wall of the shell (1) and is fixedly connected with a knob (21), the side wall of the mounting plate (13) at the lower end is fixedly connected with a small rectifier (11), the small rectifier (11), the two control blocks (19), the two conductive blocks (18) and the electromagnetic sheets (14) are electrically connected with the earphone circuit.
2. The ambient sound receiving controllable electromagnetic music earphone according to claim 1, wherein: the electromagnetic sheets (14) are connected from top to bottom through conducting wires, the electromagnetic sheet (14) positioned at the uppermost end is connected with the conductive block (18) at the upper end, the electromagnetic sheet (14) positioned at the lower end is connected with the small rectifier (11), the small rectifier (11) is connected with an earphone circuit, the two control blocks (19) are electrically connected, and the conductive block (18) positioned at the lower end is connected with the earphone circuit.
3. The ambient sound receiving controllable electromagnetic music earphone according to claim 2, wherein: the magnetic poles of the electromagnetic sheets (14) opposite to the permanent magnets (5) are opposite poles, and the second metal vibrating diaphragm (10) is located between the electromagnetic sheets (14) and the permanent magnets (5).
4. The ambient sound receiving controllable electromagnetic music earphone according to claim 3, wherein: the two conductive blocks (18) and the two control blocks (19) are arranged in a staggered mode from top to bottom, and the two conductive blocks (18) are not in contact with the two control blocks (19).
5. The ambient sound receiving controllable electromagnetic music earphone according to claim 1, wherein: the damping pivot is kept away from carousel (20) one end fixedly connected with rotor plate (22), rotor plate (22) lateral wall is equipped with two openings (23).
6. The ambient sound receiving controllable electromagnetic music earphone according to claim 5, wherein: the distance between the circle centers of the two sound collecting holes (12) and the circle center of the cross section of the damping rotating shaft is unequal, and the two openings (23) and the two sound collecting holes (12) are arranged in a staggered mode from top to bottom.
7. The ambient sound receiving controllable electromagnetic music earphone according to claim 5, wherein: the rotating plate (22) is attached to the side wall of the shell (1), and the rotating plate (22) is made of a sound insulation material.
CN202010390845.1A 2020-05-11 2020-05-11 Environment sound receiving controllable electromagnetic type music earphone Pending CN111526448A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010390845.1A CN111526448A (en) 2020-05-11 2020-05-11 Environment sound receiving controllable electromagnetic type music earphone

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Application Number Priority Date Filing Date Title
CN202010390845.1A CN111526448A (en) 2020-05-11 2020-05-11 Environment sound receiving controllable electromagnetic type music earphone

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112887864A (en) * 2021-01-26 2021-06-01 英华达（上海）科技有限公司 Earphone with external sound physical transparent mode

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050105755A1 (en) * 2003-11-17 2005-05-19 Wen Hsiang Yueh Modified earphone structure having closable opening
CN101180916A (en) * 2005-02-25 2008-05-14 诺基亚公司 Audio transducer component
CN202085297U (en) * 2011-05-25 2011-12-21 东莞市阳证电器配件有限公司 Loudspeaker adopting metal membrane
CN103220613A (en) * 2013-03-28 2013-07-24 郑树城 Frequency spreading horn
CN105681947A (en) * 2016-01-06 2016-06-15 胡振华 Open type electronic music earphone
CN209787400U (en) * 2019-07-09 2019-12-13 深圳市华韵鑫电子有限公司 Combined earphone speaker and earphone

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050105755A1 (en) * 2003-11-17 2005-05-19 Wen Hsiang Yueh Modified earphone structure having closable opening
CN101180916A (en) * 2005-02-25 2008-05-14 诺基亚公司 Audio transducer component
CN202085297U (en) * 2011-05-25 2011-12-21 东莞市阳证电器配件有限公司 Loudspeaker adopting metal membrane
CN103220613A (en) * 2013-03-28 2013-07-24 郑树城 Frequency spreading horn
CN105681947A (en) * 2016-01-06 2016-06-15 胡振华 Open type electronic music earphone
CN209787400U (en) * 2019-07-09 2019-12-13 深圳市华韵鑫电子有限公司 Combined earphone speaker and earphone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112887864A (en) * 2021-01-26 2021-06-01 英华达（上海）科技有限公司 Earphone with external sound physical transparent mode
CN112887864B (en) * 2021-01-26 2023-04-21 英华达（上海）科技有限公司 Earphone with external sound physical penetrating mode

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