CN111163404A - Bone conduction vibrator loudspeaker - Google Patents

Bone conduction vibrator loudspeaker Download PDF

Info

Publication number
CN111163404A
CN111163404A CN202010003877.1A CN202010003877A CN111163404A CN 111163404 A CN111163404 A CN 111163404A CN 202010003877 A CN202010003877 A CN 202010003877A CN 111163404 A CN111163404 A CN 111163404A
Authority
CN
China
Prior art keywords
magnet
magnetic conductive
iron sheet
conductive iron
bone conduction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010003877.1A
Other languages
Chinese (zh)
Inventor
鲁海军
谭华容
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Moyin Technology Co Ltd
Original Assignee
Shenzhen Moyin Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Moyin Technology Co Ltd filed Critical Shenzhen Moyin Technology Co Ltd
Priority to CN202010003877.1A priority Critical patent/CN111163404A/en
Publication of CN111163404A publication Critical patent/CN111163404A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/025Magnetic circuit
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers

Abstract

The invention relates to a vibrator of a bone conduction vibrator horn, which is designed by adopting a magnetic circuit mass body center suspension type, wherein a base, a magnet and a magnetic conductive iron sheet of a vibrating part are suspended on a plastic or metal and support elastic sheet combination, so that the vibrator can vibrate more directly and the efficiency is improved; the magnetic circuit driving part is suspended inside the elastic sheet, and the middle-high sound emitted by the vibrator and capable of being transmitted in the air is greatly reduced, so that the sound leakage condition of the vibrator is avoided; through the center suspension type design of the magnetic circuit mass body, bass vibration is increased, and the overall mass of the vibrator is reduced, so that the overall weight of the bone conduction equipment is reduced; the coil sets up in the space, and through insulating lead wire wiring, it is convenient to assemble, difficult broken string, and simple process, and the process reduces, and assembly efficiency improves, and the product uniformity is good, improves the production qualification rate.

Description

Bone conduction vibrator loudspeaker
Technical Field
The invention relates to the technical field of loudspeakers, in particular to a bone conduction vibrator horn.
Background
Bone conduction is a sound conduction mode, which is to transmit sound waves through the skull, the bone labyrinth, the lymph of the inner ear, the spiral organ, the auditory nerve and the auditory central nerve of a human body by taking sound from Anneani as mechanical vibration with different frequencies. Compared with a classical sound conduction mode of generating sound waves through a vibrating diaphragm, the bone conduction mode omits a plurality of sound wave transmission steps and can realize clear sound restoration in a noisy environment.
The bone conduction vibrator horn is a novel electroacoustic transducer developed based on a bone conduction sound conduction mode, but the existing bone conduction vibrator horn still has the following problems:
the existing bone conduction vibrator horn still has serious sound leakage, and people beside the assembled finished product can clearly hear the sound when listening to music or making a call, so that the privacy of a user is revealed, and the interference to surrounding people is also caused. Moreover, the existing bone conduction vibrator horn unit is heavy, and is uncomfortable to wear due to overlarge weight when being assembled on a bone conduction product. Moreover, the existing bone conduction vibrator horn has more fittings, leads are easily damaged by a base or T-shaped aluminum wiping lines when being led out from the edge of the coil, the assembly efficiency is low, and the qualified rate of finished products is low.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a bone conduction vibrator horn, aiming at the defects of the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a bone conduction vibrator horn comprising: the magnetic circuit device comprises a base, a magnet and a magnetic conductive iron sheet; the magnet and the magnetic conductive iron sheet are arranged in the base, the lower surface of the magnet is tightly attached to the bottom of the base, the magnetic conductive iron sheet is fixedly arranged on the upper surface of the magnet, gaps are reserved between the side edges of the magnet and the magnetic conductive iron sheet and the inner wall of the base, and the upper surface of the magnetic conductive iron sheet and the upper surfaces of the two ends of the base are positioned on the same horizontal plane; the support elastic sheet combination comprises a connecting central column, an elastic sheet and a support cover surface, the connecting central column comprises a connecting column and a connecting cap, the height of the connecting column is greater than that of the connecting cap, the connecting column and the connecting cap are fixedly connected, the height of the connecting column is greater than the sum of the thicknesses of the magnet and the magnetic conductive iron sheet, so that one end of the connecting column penetrates through the centers of the magnet and the magnetic conductive iron sheet to be inserted into the bottom surface of the base, and the surface of the connecting cap, which is in contact with the connecting column; the bracket cover surface is tubular, the elastic sheet is circular, the edge of the inner ring of the elastic sheet is horizontally inserted into the outer side wall of the connecting cap for fixing, and the edge of the outer ring of the elastic sheet is horizontally and fixedly connected with the inner wall of the bracket cover surface; the loudspeaker coil combination comprises a copper coil, a sleeve and an enameled wire, the outer wall of the cover body of the bracket is coated by the sleeve, the enameled wire is arranged around the sleeve, the copper coil is connected with the enameled wire, the enameled wire is arranged in a gap between the base and the side edge of the magnet and the magnetic conductive iron sheet, and the enameled wire surrounds the outer wall of the magnet and the magnetic conductive iron sheet.
Wherein, the spliced pole of connecting the center pillar carries out fixed connection through interference fit's mode with magnet and magnetic conduction iron sheet.
When the elastic sheet is connected with the inner wall of the cover surface of the support, the edge of the outer ring of the elastic sheet is horizontally inserted into the inner wall of the cover surface of the support, or the edge of the outer ring of the elastic sheet is fixedly connected with the bottom of the cover surface of the support.
The edge of the outer ring of the elastic sheet is fixedly connected with the bottom of the cover surface of the support in a welding or glue bonding mode.
Wherein, the material of connecting the center pillar is plastic or metal.
The vibrator of the bone conduction vibrator horn is designed in a way that the center of a magnetic circuit mass body is suspended, and the base, the magnet and the magnetic conductive iron sheet of the vibrating part are suspended on the elastic sheet combination of plastic or metal and a bracket, so that the vibrator can vibrate more directly, and the efficiency is improved; the magnetic circuit driving part is suspended inside the elastic sheet, and the middle-high sound emitted by the vibrator and capable of being transmitted in the air is greatly reduced, so that the sound leakage condition of the vibrator is avoided; through the center suspension type design of the magnetic circuit mass body, bass vibration is increased, and the overall mass of the vibrator is reduced, so that the overall weight of the bone conduction equipment is reduced; the coil sets up in the space, and through insulating lead wire wiring, it is convenient to assemble, difficult broken string, and simple process, and the process reduces, and assembly efficiency improves, and the product uniformity is good, improves the production qualification rate.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
fig. 1 is a schematic structural diagram of a bone conduction vibrator horn provided by the present invention.
Fig. 2 is a schematic structural diagram of a spring plate in the bone conduction vibrator horn provided by the invention.
Fig. 3 is a schematic structural diagram of another embodiment of a bone conduction vibrator horn according to the present invention.
Fig. 4 is a schematic structural diagram of another embodiment of the bone conduction vibrator horn provided by the invention.
Fig. 5 is a schematic structural diagram of another embodiment of the bone conduction vibrator horn provided by the invention.
Fig. 6 is a schematic structural diagram of a shell of a bone conduction vibrator horn according to the present invention.
Fig. 7 is a schematic structural diagram of a bone conduction vibrator horn provided by the present invention with a housing added.
Fig. 8 is a schematic structural diagram of another embodiment of the bone conduction vibrator horn provided by the invention after a housing is installed.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the present invention provides a bone conduction vibrator horn, comprising: a magnetic circuit device 10, a loudspeaker coil assembly 20 and a support spring assembly 30; wherein, the magnetic circuit device 10 comprises a base 11, a magnet 13 and a magnetic conductive iron sheet 12; the magnet 13 and the magnetic conductive iron sheet 12 are cylindrical and are arranged in the base 11, the lower surface of the magnet 13 is tightly attached to the bottom of the base 11, the magnetic conductive iron sheet 12 is fixedly arranged on the upper surface of the magnet 13, gaps are reserved between the side edges of the magnet 13 and the magnetic conductive iron sheet 12 and the inner wall of the base 11, and the upper surface of the magnetic conductive iron sheet 12 and the upper surfaces of two ends of the base 11 are positioned on the same horizontal plane; the support spring combination 30 comprises a connecting center post 33, a spring piece 32 and a support cover surface 31, the connecting center post 33 comprises a connecting column 331 and a connecting cap 332, the connecting column 331 and the connecting cap 332 are cylindrical, the area of the bottom surface of the connecting column 331 is smaller than that of the bottom surface of the connecting cap 332, the height of the connecting column 331 is larger than that of the connecting cap 332, the connecting column 331 and the connecting cap 332 are fixedly connected, and the centers of the mutually fixed contact surfaces coincide; the height of the connecting column 331 is greater than the sum of the thicknesses of the magnet 13 and the magnetic conductive iron sheet 12, so that one end of the connecting column 331 penetrates through the centers of the magnet 13 and the magnetic conductive iron sheet 12 and is inserted into the bottom surface of the base 11, and the surface of the connecting cap 332, which is in contact with the connecting column 331, is simultaneously in contact with the upper surface of the magnetic conductive iron sheet 12; the bracket cover surface 31 is tubular, the elastic sheet 32 is annular, the edge of the inner ring of the elastic sheet 32 is horizontally inserted into the outer side wall of the connecting cap 332 for fixing, and the edge of the outer ring of the elastic sheet 32 is horizontally and fixedly connected with the inner wall of the bracket cover surface 31; the loudspeaker coil assembly 20 comprises a copper coil 21, a sleeve 22 and an enameled wire 23, wherein the sleeve 22 covers the outer wall of the bracket cover surface 31, the enameled wire 23 is arranged around the sleeve 22, the copper coil 21 is connected with the enameled wire 23, the enameled wire is arranged in a gap between the base 11 and the side edges of the magnet 13 and the magnetic conductive iron sheet 12, and the enameled wire surrounds the outer walls of the magnet 13 and the magnetic conductive iron sheet 12.
The thin copper wire of the copper coil 21 is connected to the thick enameled wire 23, and the fatigue resistance of the thick enameled wire 23 is increased, so that the bearing power of the vibrator can be improved; after the copper coil 21 is connected with the thick enameled wire 23, the processing technology for manufacturing the vibrator is simple; the consistency of the copper coil 21 is improved, the copper coil 21 can realize semi-automatic production, according to the structure of the original oscillator, if a thin copper wire of the oscillator copper coil 21 is led to an enameled wire 23, the thin copper wire needs to be bent for several times in the oscillator and then led out, and needs to be connected to a PCB (printed Circuit Board), the process is relatively complicated and too many, and the coil structure is more reliable, easy to popularize and labor cost saving.
The structure of the spring plate 32 is shown in fig. 2.
The bracket spring combination 30 is a core component of the invention, and the structure is distinguished from the prior vibrator by: the magnetic circuit mass body of the vibrator is connected through the central shaft, the former vibrator is generally connected through the base edge of the magnetic circuit mass body, the vibration position and amplitude are completely different, and the sound leakage of the central shaft connected with the suspended magnetic circuit mass body is relatively small; 2. the support elastic sheet combination of the vibrator is not only centrally connected with the magnetic circuit mass body, but also the edge of the support can be sleeved with the coil, so that the structure of the vibrator is simplified, the consistency is better, the support elastic sheet combination is easy to popularize, and the labor cost is saved.
Wherein, the connecting column 331 connected with the central column 33 is fixedly connected with the magnet 13 and the magnetic conductive iron sheet 12 in an interference fit manner.
When the elastic sheet 32 is connected with the inner wall of the bracket cover surface 31, the edge of the outer ring of the elastic sheet 32 is horizontally inserted into the inner wall of the bracket cover surface 31, or the edge of the outer ring of the elastic sheet 32 is fixedly connected with the bottom of the bracket cover surface 31. The two connection modes are respectively shown in fig. 1 and fig. 3.
The edge of the outer ring of the elastic sheet 32 is fixedly connected with the bottom of the bracket cover surface 31 in a welding or glue bonding mode.
The material of the connecting pillar 33 is plastic or metal.
Fig. 4 shows another embodiment of the present invention. In the scheme, a base is not arranged, the magnet 13 is clamped between two layers of magnetic conductive iron sheets 13, the three layers are cylindrical, a circular groove is formed in the magnetic conductive iron sheet 12 which is in contact with the upper surface of the magnet 13 and faces the inside of the magnet 13, and the copper coil 21 is wound in the circular groove by setting the diameter of the pipe body of the support cover surface 31 to form an inner-outer combined double magnetic circuit.
Fig. 5 shows a further embodiment of the invention. In this solution, the contact between the connecting cap 332 and the magnetic conducting iron sheet 12 shown in fig. 1 is eliminated, and another magnet is additionally arranged between the connecting cap 332 and the magnetic conducting iron sheet 12, so that a vertically combined double magnetic circuit is formed.
Fig. 6 shows a top view and a perspective view of the overall appearance of the present invention. A housing 100 is shown, and the bone conduction vibrator horn of the present invention is disposed inside the housing 100 for protection.
Fig. 7 shows a schematic view of the present invention after the housing is mounted, and the cover 31 of the bracket of the vibrator is directly connected with the housing 100 in hard contact. This method is characterized by a small distortion of the reproduced audio response.
Fig. 8 shows another schematic diagram of the present invention after the housing is mounted, the cover 31 of the bracket of the vibrator is connected with the panel 40 in hard contact, and then is sleeved in the soft material 50, and then is connected with the housing 100. This approach is characterized by slightly less sound leakage.
In the present embodiment, the soft material 50 is silica gel.
The vibrator of the bone conduction vibrator horn is designed in a way that the center of a magnetic circuit mass body is suspended, and the base, the magnet and the magnetic conductive iron sheet of the vibrating part are suspended on the elastic sheet combination of plastic or metal and a bracket, so that the vibrator can vibrate more directly, and the efficiency is improved; the magnetic circuit driving part is suspended inside the elastic sheet, and the middle-high sound emitted by the vibrator and capable of being transmitted in the air is greatly reduced, so that the sound leakage condition of the vibrator is avoided; through the center suspension type design of the magnetic circuit mass body, bass vibration is increased, and the overall mass of the vibrator is reduced, so that the overall weight of the bone conduction equipment is reduced; the coil sets up in the space, and through insulating lead wire wiring, it is convenient to assemble, difficult broken string, and simple process, and the process reduces, and assembly efficiency improves, and the product uniformity is good, improves the production qualification rate.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (5)

1. A bone conduction vibrator horn, comprising: the magnetic circuit device, the loudspeaker coil assembly and the support spring plate assembly are combined; wherein, the magnetic circuit device comprises a base, a magnet and a magnetic conductive iron sheet; the magnet and the magnetic conductive iron sheet are arranged in the base, the lower surface of the magnet is tightly attached to the bottom of the base, the magnetic conductive iron sheet is fixedly arranged on the upper surface of the magnet, gaps are reserved between the side edges of the magnet and the magnetic conductive iron sheet and the inner wall of the base, and the upper surface of the magnetic conductive iron sheet and the upper surfaces of the two ends of the base are positioned on the same horizontal plane; the support elastic sheet combination comprises a connecting central column, an elastic sheet and a support cover surface, the connecting central column comprises a connecting column and a connecting cap, the height of the connecting column is greater than that of the connecting cap, the connecting column and the connecting cap are fixedly connected, the height of the connecting column is greater than the sum of the thicknesses of the magnet and the magnetic conductive iron sheet, so that one end of the connecting column penetrates through the centers of the magnet and the magnetic conductive iron sheet to be inserted into the bottom surface of the base, and the surface of the connecting cap, which is in contact with the connecting column; the bracket cover surface is tubular, the elastic sheet is circular, the edge of the inner ring of the elastic sheet is horizontally inserted into the outer side wall of the connecting cap for fixing, and the edge of the outer ring of the elastic sheet is horizontally and fixedly connected with the inner wall of the bracket cover surface; the loudspeaker coil combination comprises a copper coil, a sleeve and an enameled wire, the outer wall of the cover body of the bracket is coated by the sleeve, the enameled wire is arranged around the sleeve, the copper coil is connected with the enameled wire, the enameled wire is arranged in a gap between the base and the side edge of the magnet and the magnetic conductive iron sheet, and the enameled wire surrounds the outer wall of the magnet and the magnetic conductive iron sheet.
2. The bone conduction vibrator horn of claim 1, wherein the connection post of the connection center post is fixedly connected with the magnet and the magnetic conductive iron sheet in an interference fit manner.
3. The bone conduction vibrator horn of claim 1, wherein when the elastic piece is connected with the inner wall of the cover surface of the bracket, the edge of the outer ring of the elastic piece is horizontally inserted into the inner wall of the cover surface of the bracket, or the edge of the outer ring of the elastic piece is fixedly connected with the bottom of the cover surface of the bracket.
4. The bone conduction vibrator horn of claim 2, wherein the outer ring edge of the elastic piece is fixedly connected with the bottom of the cover surface of the bracket by welding or glue bonding.
5. The bone conduction vibrator horn of claim 1, wherein the connection center pillar is made of plastic or metal.
CN202010003877.1A 2020-01-03 2020-01-03 Bone conduction vibrator loudspeaker Pending CN111163404A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010003877.1A CN111163404A (en) 2020-01-03 2020-01-03 Bone conduction vibrator loudspeaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010003877.1A CN111163404A (en) 2020-01-03 2020-01-03 Bone conduction vibrator loudspeaker

Publications (1)

Publication Number Publication Date
CN111163404A true CN111163404A (en) 2020-05-15

Family

ID=70560973

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010003877.1A Pending CN111163404A (en) 2020-01-03 2020-01-03 Bone conduction vibrator loudspeaker

Country Status (1)

Country Link
CN (1) CN111163404A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022056952A1 (en) * 2020-09-15 2022-03-24 瑞声声学科技(深圳)有限公司 Bone conduction apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022056952A1 (en) * 2020-09-15 2022-03-24 瑞声声学科技(深圳)有限公司 Bone conduction apparatus

Similar Documents

Publication Publication Date Title
CN207560323U (en) Loud speaker
CN110177322B (en) Screen sound production exciter and electronic equipment
WO2021143118A1 (en) Bone conduction loudspeaker and composite loudspeaker
WO2021063113A1 (en) Bone conduction loudspeaker, bone conduction earphone, and bone conduction hearing aid
CN104602156A (en) Earphone speaker and earphone with speaker
CN211792018U (en) Bone conduction vibrator loudspeaker
WO2020156012A1 (en) Bone conduction speaker having conductive damper
CN110830890B (en) Voice coil assembly and loudspeaker
CN111163404A (en) Bone conduction vibrator loudspeaker
CN111083612A (en) Elastic sheet, bone conduction loudspeaker and bone conduction ear-wearing type equipment
CN204350255U (en) Earphone horn and be provided with the earphone of these loudspeaker
CN207475864U (en) A kind of sound-producing device and electronic equipment
KR100477261B1 (en) Speaker and Speaker Manufacturing Method
CN206611571U (en) Loudspeaker
CN206365029U (en) Loudspeaker
CN214177552U (en) Sound production device
WO2021258653A1 (en) Loudspeaker and earphone
CN205754845U (en) Loudspeaker and be provided with the earphone of these loudspeaker
CN108696806A (en) Loud speaker and portable terminal
CN215499486U (en) Single-drive bone conduction loudspeaker and earphone
CN214591966U (en) Dual-drive bone conduction loudspeaker and earphone
JPH10145891A (en) Electroacoustic transducer
CN212812019U (en) Sound production device
CN212936145U (en) Bone conduction vibrator
CN211860530U (en) Elastic sheet, bone conduction loudspeaker and bone conduction ear-wearing type equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination