CN106303865A - A kind of water proof type bone-conduction speaker and manufacture method thereof - Google Patents
A kind of water proof type bone-conduction speaker and manufacture method thereof Download PDFInfo
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- CN106303865A CN106303865A CN201610644445.2A CN201610644445A CN106303865A CN 106303865 A CN106303865 A CN 106303865A CN 201610644445 A CN201610644445 A CN 201610644445A CN 106303865 A CN106303865 A CN 106303865A
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- balanced armature
- speaker
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- coil
- vibration
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 230000010355 oscillation Effects 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims description 14
- 238000004804 winding Methods 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 5
- 239000010963 304 stainless steel Substances 0.000 claims description 4
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000003647 oxidation Effects 0.000 claims description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000002087 whitening effect Effects 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000007711 solidification Methods 0.000 claims 1
- 230000008023 solidification Effects 0.000 claims 1
- 210000000988 bone and bone Anatomy 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 239000003814 drug Substances 0.000 abstract 1
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 210000000860 cochlear nerve Anatomy 0.000 description 2
- 210000000959 ear middle Anatomy 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 210000000883 ear external Anatomy 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 206010033675 panniculitis Diseases 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/02—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2460/00—Details of hearing devices, i.e. of ear- or headphones covered by H04R1/10 or H04R5/033 but not provided for in any of their subgroups, or of hearing aids covered by H04R25/00 but not provided for in any of its subgroups
- H04R2460/13—Hearing devices using bone conduction transducers
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention discloses a kind of water proof type bone-conduction speaker and manufacture method thereof, including Magnet base plate, permanent magnet, balanced armature, pivot, coil and vibrating diaphragm constitute magnetic system, the balanced armature being fixed on pivot can move up and down, balanced armature is positioned at the central point of permanent magnet, so balanced armature can move in permanent magnetic field, magnetic field force is not had to act on it when balanced armature is positioned at the circle centre position in magnetic field, this state is poised state, when there being current through coil, balanced armature can be carried out unidirectional or reversely be magnetized, balanced armature produces forward or the motion of negative sense for permanent magnet central point, thus cause air to flow, cause diaphragm oscillations, vibration-transmitting plate and panel are connected with magnetic system by the biography post that shakes；This bone-conduction speaker passes through panel and external connection, can transfer vibrations to people's bone, thus produce sound.The medicine have the advantages that enclosed construction, surface-coated environment-friendly waterproof film, water resistance is good, is not disturbed by outside environmental elements, and clear sound will not be lost one's head without noise, noiseless, long-time use.
Description
Technical field
The present invention relates to bone-conduction speaker technical field, be specifically related to a kind of water proof type bone-conduction speaker and manufacture thereof
Method.
Background technology
In prior art, the vibration that the principle of acoustic is because in air is delivered to vibration by external ear auditory meatus
Tympanum, by the auditory nerve of the vibratory drive people that tympanum is formed, the thus vibration of perception sound.Existing bone-conduction speaker
Operationally, generally by can be delivered to the auditory nerve of people with the skin of people, subcutaneous tissue and skeleton, so that people hears sound
Sound.When current existing bone-conduction speaker works, along with the vibration of oscillating plate, via the fixed oscillating plate of fixed block
Housing produces vibration also with oscillating plate, thus this hull vibration face is contacted after ear, the position such as cheek or forehead, its vibration
Can serve as bone conduction sound to transmit, such that it is able to clearly hear sound.But, existing bone-conduction speaker is by outward
Boundary's temperature, the environmental disturbances such as humidity, noise is too many in the presence of a harsh environment, and tonequality is unintelligible；And bone-conduction speaker noise is big,
Long-time use causes uncomfortable sensations such as losing one's head, easily brings burden to wearer, conversion effect in terms of electroacoustic conversion ratio
Rate is low, causes power consumption big, and flying power is not enough.
Summary of the invention
Non-watertight for above-mentioned existing bone-conduction speaker, the problems such as noise is big, the technical problem to be solved
It is to provide a kind of water proof type bone-conduction speaker and manufacture method thereof.
For solving above-mentioned technical problem, the technical scheme that the present invention takes is: a kind of water proof type bone-conduction speaker, including
Panel and permanent magnet, it is characterised in that: described lower panels is provided with vibration-transmitting plate, and described vibration-transmitting plate center is provided with circular hole, described biography
Shaking below sheet for speaker body, described panel is fixed on biography and shakes on post, and described vibration-transmitting plate is fixed on biography by circular hole and shakes on post,
The described biography post that shakes is fixed on speaker body, and described biography is shaken and is provided with vibrating diaphragm below post, and described speaker body is provided with through hole,
Being provided with electric wire in through hole, described electric wire is connected through through hole with coil, and described coil is wrapped on balanced armature, described speaker
This internal permanent magnet that is provided with, the described balanced armature middle part by pivot fixing permanent magnet, described permanent magnet is fixed on Magnet
On base plate, described through hole uses glue to fill.
The preferred version of such scheme is: the thickness of described vibration-transmitting plate zone line is 0.08-0.2mm, marginal area
Thickness is 0.2-0.5mm.
The preferred version of such scheme is: described Magnet base plate is provided with groove.
The preferred version of such scheme is: described glue solidifies glue for happy safe loctite3011 medical type UV or other has
The glue of identical function.
Correspondingly, the present invention has supplied a kind of water proof type bone-conduction speaker manufacture method, comprises the steps:
(1) vibration-transmitting plate and panel select SUS 304 stainless steel material.
(2) in the middle of rotational oscillation sheet, the region of circular is fabricated to the thickness of 0.08-0.2mm, makes by antermarginal region
Become 0.2-0.5mm thickness.
(3) vibration-transmitting plate and panel surface-fire are baked heat treatment, produce black oxidation skin, use nonhazardous with inorganic
The cleanout fluid of additive embathes, and reaches the whitening processing purpose of rustless steel true qualities.
(4) first vibration-transmitting plate is fixed on biography and shakes on post, shake on post at fixed panel to biography, then fix biography and shake post to raising one's voice
On device body.
(5) a length of 4-6mm of balanced armature, coil starts to be wound around at distance balanced armature top 0.4mm, and line footpath is
0.4-0.8mm, the end of inner most winding layer is as the leading-in end of coil, and the end of outermost winding layer is as coil
Exit, leading-in end is positioned at the right-hand member of balanced armature, and being wound around the number of plies is 4-8 layer.
(6) balanced armature winding coil is fixed on the pivot of speaker body interior.
(7) using electric wire and coil to connect, electric wire, through the through hole on speaker body, is filled in through-holes
Loctite3011, UV glue, uses ultraviolet to be solidified by UV, and energy is 100mW/cm2, and time: 30S will play fixing electric wire
Effect, can seal speaker simultaneously.
(8) permanent magnet is pasted onto on the groove of Magnet base plate, and seals.
(9) finally coat environment-friendly waterproof film at speaker body surface, whole speaker is wrapped.
Provide the benefit that: bone-conduction speaker of the present invention passes through above-mentioned Magnet base plate, permanent magnet, balanced armature, pivot
Axle, coil and vibrating diaphragm constitute magnetic system, and the balanced armature being fixed on pivot can move up and down, and balanced armature is positioned at permanent magnetism
The central point of ferrum, so balanced armature can move in permanent magnetic field, does not has magnetic when balanced armature is positioned at the circle centre position in magnetic field
Field force acts on it, and this state is poised state, and when there being current through coil, balanced armature can be carried out unidirectional or reversely fill
Magnetic, balanced armature produces forward or the motion of negative sense for the central point of permanent magnet, thus causes air to flow, causes shaking
Film vibrates, and vibration-transmitting plate and panel are connected with magnetic system by the biography post that shakes；This bone-conduction speaker passes through panel and external connection, can
Transferring vibrations to people's bone, thus produce sound, enclosed construction, surface-coated environment-friendly waterproof film, water resistance is good, is not subject to
Outside environmental elements disturbs, and clear sound will not be lost one's head without noise, noiseless, long-time use.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the vibration-transmitting plate sectional view in the present invention.
Fig. 3 is the vibration-transmitting plate top view in the present invention.
Detailed description of the invention
Below in conjunction with embodiment pair, technical scheme is further described.
Embodiment 1, as shown in Figure 1, 2, 3, a kind of water proof type bone-conduction speaker, including panel 8 and permanent magnet 4, described
Being provided with vibration-transmitting plate 1 below panel 8, described rotational oscillation sheet 1 center is provided with circular hole 15, is speaker body 3 below described vibration-transmitting plate 1,
Described panel 8 is fixed on biography and shakes on post 9, and described vibration-transmitting plate 1 is fixed on biography by circular hole 15 and shakes on post 9, and the described biography post 9 that shakes is fixed
On speaker body 3, described biography is shaken and is provided with vibrating diaphragm 2 below post 9, and described speaker body 3 is provided with through hole 11, described through hole
Being provided with electric wire 10 in 11, described electric wire 10 is connected through through hole 11 with coil 7, and described coil 7 is wrapped on balanced armature 5, institute
Permanent magnet 4, the described balanced armature 5 middle part by pivot 12 fixing permanent magnet 4, described long magnetic it is provided with in stating speaker body 3
Ferrum) it is fixed on Magnet base plate 6, described through hole 11 uses glue (13) to fill.
A kind of water proof type bone-conduction speaker manufacture method, comprises the steps:
(1) vibration-transmitting plate and panel select SUS 304 stainless steel material.
(2) in the middle of rotational oscillation sheet, the region of circular is fabricated to the thickness of 0.08mm, is fabricated to by antermarginal region
0.2mm thickness.
(3) vibration-transmitting plate and panel surface-fire are baked heat treatment, produce black oxidation skin, use nonhazardous with inorganic
The cleanout fluid of additive embathes, and reaches the whitening processing purpose of rustless steel true qualities.
(4) first vibration-transmitting plate is fixed on biography and shakes on post, shake on post at fixed panel to biography, then fix biography and shake post to raising one's voice
On device body.
(5) a length of 4mm of balanced armature, coil starts to be wound around at distance balanced armature top 0.4mm, and line footpath is
0.4mm, the end of inner most winding layer is as the leading-in end of coil, and the end of outermost winding layer is as the extraction of coil
End, leading-in end is positioned at the right-hand member of balanced armature, and being wound around the number of plies is 4 layers.
(6) balanced armature winding coil is fixed on the pivot of speaker body interior.
(7) using electric wire and coil to connect, electric wire, through the through hole on speaker body, is filled in through-holes
Loctite3011, UV glue, uses ultraviolet to be solidified by UV, and energy is 100mW/cm2, and time: 30S will play fixing electric wire
Effect, can seal speaker simultaneously.
(8) permanent magnet is pasted onto on the groove of Magnet base plate, and seals.
(9) finally coat environment-friendly waterproof film at speaker body surface, whole speaker is wrapped.
By above method, a kind of low frequency water proof type bone-conduction speaker can be obtained, because vibration-transmitting plate zone line
Thickness be only 0.08mm, the thickness of marginal area is 0.2mm, and vibration-transmitting plate is the thinnest, and less sound just can vibrate.
Embodiment 2, as shown in Figure 1, 2, 3, a kind of water proof type bone-conduction speaker, including panel 11 and permanent magnet 4, described
Being provided with vibration-transmitting plate 1 below panel 8, described vibration-transmitting plate 1 center is provided with circular hole 15, is speaker body 3 below described vibration-transmitting plate 1,
Described panel 8 is fixed on biography and shakes on post 9, and described vibration-transmitting plate 1 is fixed on biography by circular hole 15 and shakes on post 9, and the described biography post 9 that shakes is fixed
On speaker body 3, described biography is shaken and is provided with vibrating diaphragm 2 below post 9, and described speaker body 3 is provided with through hole 11, described through hole
Being provided with electric wire 10 in 11, described electric wire 10 is connected through through hole 11 with coil 7, and described coil 7 is wrapped on balanced armature 5, institute
Permanent magnet 4, the described balanced armature 5 middle part by pivot 12 fixing permanent magnet 4, described long magnetic it is provided with in stating speaker body 3
Ferrum 4 is fixed on Magnet base plate 6, and described through hole 11 uses glue 13 to fill.
A kind of water proof type bone-conduction speaker manufacture method, comprises the steps:
(1) vibration-transmitting plate and panel select SUS 304 stainless steel material.
(2) in the middle of rotational oscillation sheet, the region of circular is fabricated to the thickness of 0.2mm, is fabricated to by antermarginal region
0.5mm thickness.
(3) vibration-transmitting plate and panel surface-fire are baked heat treatment, produce black oxidation skin, use nonhazardous with inorganic
The cleanout fluid of additive embathes, and reaches the whitening processing purpose of rustless steel true qualities.
(4) first vibration-transmitting plate is fixed on biography and shakes on post, shake on post at fixed panel to biography, then fix biography and shake post to raising one's voice
On device body.
(5) a length of 6mm of balanced armature, coil starts to be wound around at distance balanced armature top 0.4mm, and line footpath is
0.8mm, the end of inner most winding layer is as the leading-in end of coil, and the end of outermost winding layer is as the extraction of coil
End, leading-in end is positioned at the right-hand member of balanced armature, and being wound around the number of plies is 8 layers.
(6) balanced armature winding coil is fixed on the pivot of speaker body interior.
(7) using electric wire and coil to connect, electric wire, through the through hole on speaker body, is filled in through-holes
Loctite3011, UV glue, uses ultraviolet to be solidified by UV, and energy is 100mW/cm2, and time: 30S will play fixing electric wire
Effect, can seal speaker simultaneously.
(8) permanent magnet is pasted onto on the groove of Magnet base plate, and seals.
(9) finally coat environment-friendly waterproof film at speaker body surface, whole speaker is wrapped.
By above method, obtain a kind of altofrequency water proof type bone-conduction speaker, the thickness of vibration-transmitting plate zone line
For 0.2mm, the thickness of marginal area is: 0.5mm, and vibration-transmitting plate is thicker, upper frequency just can make it vibrate.
The preferred embodiment of the present invention described in detail above, but, the present invention is not limited in above-mentioned embodiment
Detail, in the technology concept of the present invention, technical scheme can be carried out multiple equivalents, this
A little equivalents belong to protection scope of the present invention.
Claims (5)
1. a water proof type bone-conduction speaker, including panel and permanent magnet, it is characterised in that: described lower panels is provided with biography and shakes
Sheet, described vibration-transmitting plate center is provided with circular hole, is speaker body below described vibration-transmitting plate, and described panel is fixed on biography and shakes on post,
Described vibration-transmitting plate is fixed on biography by circular hole and shakes on post, and the described biography post that shakes is fixed on speaker body, and described biography is shaken below post
Being provided with vibrating diaphragm, described speaker body is provided with through hole, is provided with electric wire in through hole, and described electric wire is connected through through hole with coil,
Described coil is wrapped on balanced armature, and this internal permanent magnet that is provided with of described speaker, described balanced armature is fixed by pivot
The middle part of permanent magnet, described permanent magnet is fixed on Magnet base plate, and described through hole uses glue to fill.
A kind of water proof type bone-conduction speaker the most according to claim 1, it is characterised in that: described vibration-transmitting plate zone line
Thickness be 0.08-0.2mm, the thickness of marginal area is 0.2-0.5mm.
A kind of water proof type bone-conduction speaker the most according to claim 1, it is characterised in that: described Magnet base plate is provided with
Groove.
A kind of water proof type bone-conduction speaker the most according to claim 1, it is characterised in that: described glue is happy Thailand
Loctite3011 medical type UV solidification glue or other there is the glue of identical function.
5. water proof type bone-conduction speaker manufacture method described in a claim 1, it is characterised in that: include following concrete step
Rapid:
(1) vibration-transmitting plate and panel select SUS 304 stainless steel material；
(2) in the middle of rotational oscillation sheet, the region of circular is fabricated to the thickness of 0.08-0.2mm, is fabricated to by antermarginal region
0.2-0.5mm thickness；
(3) vibration-transmitting plate and panel surface-fire are baked heat treatment, produce black oxidation skin, use nonhazardous with inorganic interpolation
The cleanout fluid of agent embathes, and reaches the whitening processing purpose of rustless steel true qualities；
(4) first vibration-transmitting plate is fixed on biography and shakes on post, shake on post at fixed panel to biography, then fix biography and shake post to speaker originally
On body；
(5) a length of 4-6mm of balanced armature, coil starts to be wound around at distance balanced armature top 0.4mm, and line footpath is 0.4-
0.8mm, the end of inner most winding layer is as the leading-in end of coil, and the end of outermost winding layer is as the extraction of coil
End, leading-in end is positioned at the right-hand member of balanced armature, and being wound around the number of plies is 4-8 layer；
(6) balanced armature winding coil is fixed on the pivot of speaker body interior；
(7) using electric wire and coil to connect, electric wire, through the through hole on speaker body, fills loctite3011 in through-holes,
UV glue, uses ultraviolet to be solidified by UV, and energy is 100mW/cm2, time: 30S, will play the effect of fixing electric wire, simultaneously can
To seal speaker；
(8) permanent magnet is pasted onto on the groove of Magnet base plate, and seals；
(9) finally coat environment-friendly waterproof film at speaker body surface, whole speaker is wrapped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644445.2A CN106303865B (en) | 2016-08-09 | 2016-08-09 | Manufacturing method of waterproof bone conduction loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644445.2A CN106303865B (en) | 2016-08-09 | 2016-08-09 | Manufacturing method of waterproof bone conduction loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106303865A true CN106303865A (en) | 2017-01-04 |
| CN106303865B CN106303865B (en) | 2019-12-20 |
Family
ID=57666657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610644445.2A Active CN106303865B (en) | 2016-08-09 | 2016-08-09 | Manufacturing method of waterproof bone conduction loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106303865B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117579974A (en) * | 2024-01-16 | 2024-02-20 | 深圳市三德大康电子有限公司 | Helmet earphone with noise reduction function |
| WO2024060006A1 (en) * | 2022-09-20 | 2024-03-28 | 深圳市韶音科技有限公司 | Earphone and transducer thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030012395A1 (en) * | 2000-12-27 | 2003-01-16 | Mikio Fukuda | Bone conduction speaker |
| US20070053542A1 (en) * | 2005-09-08 | 2007-03-08 | Dong-Won Lee | Bone conduction speaker |
| CN101940000A (en) * | 2008-02-08 | 2011-01-05 | 株式会社坦姆科日本 | vibration pickup microphone |
| CN203027473U (en) * | 2012-12-25 | 2013-06-26 | 苏州恒听电子有限公司 | Bone-conduction telephone receiver with improved structure |
-
2016
- 2016-08-09 CN CN201610644445.2A patent/CN106303865B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030012395A1 (en) * | 2000-12-27 | 2003-01-16 | Mikio Fukuda | Bone conduction speaker |
| CN1406449A (en) * | 2000-12-27 | 2003-03-26 | 株式会社坦姆科日本 | Bone conduction speaker |
| US20070053542A1 (en) * | 2005-09-08 | 2007-03-08 | Dong-Won Lee | Bone conduction speaker |
| CN101940000A (en) * | 2008-02-08 | 2011-01-05 | 株式会社坦姆科日本 | vibration pickup microphone |
| CN203027473U (en) * | 2012-12-25 | 2013-06-26 | 苏州恒听电子有限公司 | Bone-conduction telephone receiver with improved structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024060006A1 (en) * | 2022-09-20 | 2024-03-28 | 深圳市韶音科技有限公司 | Earphone and transducer thereof |
| CN117579974A (en) * | 2024-01-16 | 2024-02-20 | 深圳市三德大康电子有限公司 | Helmet earphone with noise reduction function |
| CN117579974B (en) * | 2024-01-16 | 2024-05-14 | 深圳市三德大康电子有限公司 | Helmet earphone with noise reduction function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106303865B (en) | 2019-12-20 |
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Denomination of invention: Manufacturing method of waterproof bone conduction loudspeaker Effective date of registration: 20200515 Granted publication date: 20191220 Pledgee: China Construction Bank Co.,Ltd. Suzhou High tech Industrial Development Zone Branch Pledgor: SUZHOU BEISHENG ACOUSTIC TECHNOLOGY Co.,Ltd. Registration number: Y2020320010033 |
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Date of cancellation: 20211110 Granted publication date: 20191220 Pledgee: China Construction Bank Co.,Ltd. Suzhou High tech Industrial Development Zone Branch Pledgor: SUZHOU BEISHENG ACOUSTIC TECHNOLOGY Co.,Ltd. Registration number: Y2020320010033 |
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Denomination of invention: A manufacturing method of waterproof bone conduction loudspeaker Effective date of registration: 20211126 Granted publication date: 20191220 Pledgee: China Construction Bank Co.,Ltd. Suzhou High tech Industrial Development Zone Branch Pledgor: SUZHOU BEISHENG ACOUSTIC TECHNOLOGY Co.,Ltd. Registration number: Y2021320010504 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Date of cancellation: 20231030 Granted publication date: 20191220 Pledgee: China Construction Bank Co.,Ltd. Suzhou High tech Industrial Development Zone Branch Pledgor: SUZHOU BEISHENG ACOUSTIC TECHNOLOGY Co.,Ltd. Registration number: Y2021320010504 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
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Denomination of invention: A manufacturing method for waterproof bone conduction speaker Effective date of registration: 20231109 Granted publication date: 20191220 Pledgee: Shanghai Bank Co.,Ltd. Suzhou Branch Pledgor: SUZHOU BEISHENG ACOUSTIC TECHNOLOGY Co.,Ltd. Registration number: Y2023980064489 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20191220 Pledgee: Shanghai Bank Co.,Ltd. Suzhou Branch Pledgor: SUZHOU BEISHENG ACOUSTIC TECHNOLOGY Co.,Ltd. Registration number: Y2023980064489 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A manufacturing method for a waterproof bone conduction speaker Granted publication date: 20191220 Pledgee: Shanghai Bank Co.,Ltd. Suzhou Branch Pledgor: SUZHOU BEISHENG ACOUSTIC TECHNOLOGY Co.,Ltd. Registration number: Y2024980013042 |