CN108305610B - Split wall vibration sound transmission device - Google Patents
Split wall vibration sound transmission device Download PDFInfo
- Publication number
- CN108305610B CN108305610B CN201810244114.9A CN201810244114A CN108305610B CN 108305610 B CN108305610 B CN 108305610B CN 201810244114 A CN201810244114 A CN 201810244114A CN 108305610 B CN108305610 B CN 108305610B
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- CN
- China
- Prior art keywords
- transduction
- base plate
- housing
- vibration
- pickup
- Prior art date
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 230000026683 transduction Effects 0.000 claims abstract description 97
- 238000010361 transduction Methods 0.000 claims abstract description 97
- 238000001179 sorption measurement Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000001629 suppression Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/18—Methods or devices for transmitting, conducting or directing sound
- G10K11/24—Methods or devices for transmitting, conducting or directing sound for conducting sound through solid bodies, e.g. wires
-
- 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
Abstract
A split type wall vibration sound transmission device relates to the technical field of electroacoustic equipment and solves the technical problem that personnel communication in adjacent rooms is inconvenient. The device comprises a sending component, a receiving component, an audio processing circuit board and two bearing components; the transmitting assembly comprises a transmitting microphone and a vibration transducer for converting an electrical signal into mechanical vibration; the receiving assembly comprises a receiving loudspeaker and a contact type transduction pickup used for converting mechanical vibration into an electric signal; the bearing assembly comprises a transduction base plate; the vibration transducer is arranged on the transduction base plate of the transmitting bearing assembly, the contact type transduction pickup is arranged on the transduction base plate of the receiving bearing assembly, and the transduction base plate has elasticity and is used for pressing the vibration transducer and the contact type transduction pickup on a wall body; the audio processing circuit board is provided with a pickup amplifying circuit and a vibration driving circuit. The device provided by the invention is particularly suitable for some special working or working places.
Description
Technical Field
The invention relates to a technology, in particular to a technology of a split type wall vibration sound transmission device.
Background
People in two rooms separated by a wall, or people in and out of the room, often need to make a call, an interphone or a cross-door mode to realize the mutual communication, and when the wall cannot be threaded or the interphone cannot be used due to shielding and the like, great difficulty exists in communicating the two parties at any time.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the split type wall vibration sound transmission device which can be convenient for people in adjacent rooms to communicate at any time and can be installed and removed at any time.
In order to solve the technical problems, the split type wall vibration sound transmission device provided by the invention is characterized in that: the device comprises a sending component, a receiving component, an audio processing circuit board and two bearing components;
the transmitting assembly comprises a transmitting microphone and a vibration transducer for converting an electric signal into solid mechanical vibration; the receiving assembly comprises a receiving loudspeaker and a contact type transduction pickup used for converting solid mechanical vibration into an electric signal;
one of the two bearing assemblies is a transmitting bearing assembly, and the other bearing assembly is a receiving bearing assembly; the bearing assembly comprises a transduction base plate; the vibration transducer is arranged on the transduction base plate of the transmitting bearing assembly, the contact type transduction pickup is arranged on the transduction base plate of the receiving bearing assembly, and the transduction base plate has elasticity and is used for pressing the vibration transducer and the contact type transduction pickup on a wall body;
the sound pickup amplifying circuit and the vibration driving circuit are mounted on the sound frequency processing circuit board;
the input side of the pickup amplifying circuit is connected with the contact type transduction pickup, and the output side of the pickup amplifying circuit is connected with the receiving loudspeaker;
the input side of the vibration driving circuit is connected with the transmitting microphone, and the output side of the vibration driving circuit is connected with the vibration transducer.
Further, a plurality of base plate adsorption magnets are fixed on the transduction base plate, the lower ends of the base plate adsorption magnets are higher than the lower disc surface of the transduction base plate, and the transduction base plate can be elastically deformed until the lower disc surface is flush with the lower ends of the base plate adsorption magnets.
Further, a plurality of grooves are formed in the bottom of the transduction base plate.
Furthermore, an anti-side sound circuit for eliminating side sound is mounted on the audio processing circuit board.
Further, a howling suppression circuit for suppressing howling is mounted on the audio processing circuit board.
Further, the carrier assembly further comprises a transduction housing; the energy conversion base plate is provided with a middle hole which is vertically penetrated, a pressure spring is arranged in the middle hole of the energy conversion base plate, a plurality of fins which extend outwards and have elasticity are formed on the pressure spring, and the free ends of the fins of the pressure spring are respectively fixed on the energy conversion base plate;
the energy-converting housing is arranged in the middle hole of the energy-converting base plate, the upper end of the energy-converting housing is fixedly connected with the pressure spring, and the lower end of the energy-converting housing is lower than the lower plate surface of the energy-converting base plate; the vibration transducer is arranged in the transduction housing of the transmitting bearing assembly, and the contact type transduction pickup is arranged in the transduction housing of the receiving bearing assembly.
Further, a shell handle is formed at the upper end of the transduction housing, a buffer gasket is sleeved on the shell handle, and the transduction housing is fixedly connected with the pressure spring through the shell handle.
Further, the bearing assembly further comprises a bearing housing, the transduction base plate is arranged on the bearing housing, and a horn mouth is formed on the bearing housing;
the transmitting microphone is arranged on the bearing housing of the transmitting bearing assembly and is opposite to the narrow opening of the horn mouth on the bearing housing;
the receiving loudspeaker is arranged on the bearing housing of the receiving bearing assembly and faces the narrow opening of the horn mouth on the bearing housing.
According to the split type wall vibration sound transmission device, according to the solid vibration sound transmission principle, the transmission microphone, the vibration transducer, the receiving loudspeaker and the contact type transduction pickup are matched, the wall body is used as a sound transmission medium, so that voice transmission between adjacent rooms is realized, and people in the adjacent rooms can communicate conveniently at any time.
Drawings
FIG. 1 is a schematic view of two split type wall vibration sound transmission devices according to an embodiment of the present invention mounted on both sides of a wall;
fig. 2 is a cross-sectional view of a transmitting carrier assembly in a split wall-mount microphone assembly in accordance with an embodiment of the invention;
fig. 3 is an exploded perspective view of a transmitting carrier assembly in a split wall vibration microphone device according to an embodiment of the present invention;
fig. 4 is a cross-sectional view of a receiving carrier assembly in a split wall-mount microphone assembly in accordance with an embodiment of the invention;
fig. 5 is an exploded perspective view of a receiving and carrying assembly in a split wall vibration microphone assembly in accordance with an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided in detail, but the embodiments are not limited to the embodiments, and all the similar structures and similar variations using the present invention should be included in the protection scope of the present invention, and the reference numerals in the present invention indicate the relationships.
As shown in fig. 1 to 5, the split type wall vibration sound transmission device provided by the embodiment of the invention is characterized in that: the device comprises a sending component, a receiving component, an audio processing circuit board and two bearing components 31 and 32;
the transmitting assembly includes a transmitting microphone 312 and a vibration transducer 315 for converting electrical signals into mechanical vibrations;
the receiving assembly includes a receiving speaker 322 and a contact transduction pickup 325 for converting mechanical vibrations into electrical signals;
one of the two bearing assemblies is a transmitting bearing assembly, and the other bearing assembly is a receiving bearing assembly;
the transmit bearing assembly includes a bearing housing 317, a transduction base 311, and a transduction housing 316 joined by an upper housing 3161 and a lower housing 3162; the transduction base plate 311 is mounted on the bearing housing 317, a bell mouth 3171 is formed on the bearing housing, a middle hole 3110 penetrating up and down is formed on the transduction base plate 311, a pressure spring 314 is arranged in the middle hole 3110 of the transduction base plate, a plurality of fins (two fins in this example) which extend outwards and have elasticity are formed on the pressure spring 314, and the free ends of the fins of the pressure spring 314 are respectively fixed on the transduction base plate 311; the transduction housing 316 is arranged in the middle hole 3110 of the transduction base plate, a housing handle 3163 is formed at the upper end of the transduction housing 316, a buffer gasket 3164 is sleeved on the housing handle 3163, the transduction housing is fixedly connected with the pressure spring 314 through the housing handle 3163, and the lower end of the transduction housing 316 is lower than the lower disc surface of the transduction base plate 311; a plurality of base plate adsorption magnets 313 are fixed on the transduction base plate 311, the lower end of each base plate adsorption magnet 313 is higher than the lower disc surface of the transduction base plate 311, and the transduction base plate 311 can be elastically deformed until the lower disc surface is flush with the lower end of each base plate adsorption magnet 313; a plurality of grooves are formed in the bottom of the transduction base plate 311, so that the transduction base plate is favorably attached to a curved wall; the vibration transducer 315 is mounted within the transducer housing 316 of the transmitting carrying assembly, and the transmitting microphone 312 is mounted on the carrying housing 317 of the transmitting carrying assembly opposite the narrow mouth of the horn 3171 on the carrying housing;
the receiving carrier assembly includes a carrier housing 327, a transduction base 321, and a transduction housing 326 formed by the engagement of an upper housing 3261 and a lower housing 3262; the transduction base plate 321 is mounted on the bearing housing 327, a bell mouth 3271 is formed on the bearing housing, a middle hole 3210 penetrating up and down is formed on the transduction base plate 321, a pressure spring 324 is arranged in the middle hole 3210 of the transduction base plate, a plurality of fins (two fins in this example) which extend outwards and have elasticity are formed on the pressure spring 324, and the free ends of the fins of the pressure spring 324 are respectively fixed on the transduction base plate 321; the transduction housing 326 is arranged in the middle hole 3210 of the transduction base plate, a housing handle 3263 is formed at the upper end of the transduction housing 326, a buffer gasket 3264 is sleeved on the housing handle 3263, the transduction housing is fixedly connected with the pressure spring 324 through the housing handle 3263, and the lower end of the transduction housing 326 is lower than the lower disc surface of the transduction base plate 321; a plurality of base plate adsorption magnets 323 are fixed on the transduction base plate 321, the lower end of each base plate adsorption magnet 323 is higher than the lower disc surface of the transduction base plate 321, and the transduction base plate 321 can elastically deform to the level that the lower disc surface is flush with the lower end of each base plate adsorption magnet 323; a plurality of grooves are formed in the bottom of the transduction base plate 321, so that the transduction base plate is favorably attached to a curved wall; the contact transduction pickup 325 is mounted within a transduction housing 326 of the receiving carrier assembly, and the receiving speaker 322 is mounted on a carrier housing 327 of the receiving carrier assembly opposite the slot of a flare 3271 on the carrier housing.
The audio processing circuit board is provided with a pickup amplifying circuit, a vibration driving circuit, a side-tone eliminating circuit for eliminating side tones and a howling suppressing circuit for suppressing howling;
the input side of the pickup amplifying circuit is connected with a contact type transduction pickup 325, and the output side of the pickup amplifying circuit is connected with a receiving loudspeaker 322;
the input side of the vibration driving circuit is connected with the transmitting microphone 312, and the output side of the vibration driving circuit is connected with the vibration transducer 315.
In the embodiment of the invention, the vibration transducer, the contact type transduction pickup, the pickup amplifying circuit, the vibration driving circuit and the side sound eliminating circuit are all in the prior art, and the connection modes of the circuits and the receiving loudspeaker, the sending microphone, the vibration transducer and the contact type transduction pickup are also in the prior art.
The working principle of the embodiment of the invention is as follows:
selecting a wall 19 which can be adsorbed by a magnet, respectively installing two split type wall vibration sound transmission devices on two sides of the wall 19 and enabling the two split type wall vibration sound transmission devices to be opposite to each other, attaching the lower disc surface of a transduction base disc to the wall when the split type wall vibration sound transmission devices are installed, enabling the transduction base disc to be elastically deformed under the action of the magnetic force of a base disc adsorption magnet until the lower disc surface is flush with the lower end of each base disc adsorption magnet, enabling the lower end of a transduction housing to be upwards lifted under the compression of the wall, enabling the lower end of the transduction housing to be flush with the lower disc surface of the transduction base disc, and enabling the transduction housing to tightly prop against the wall under the action of the elastic force of the pressure spring;
two split type wall vibration sound transmission devices arranged on two sides of the wall are respectively a first split type wall vibration sound transmission device and a second split type wall vibration sound transmission device; when the split type wall vibration microphone device works, a transmitting microphone in the first split type wall vibration microphone device picks up the voice of a user on the side, converts the voice of the user into an electric signal, transmits the electric signal to a vibration transducer through a vibration driving circuit, and converts the electric signal into mechanical vibration to vibrate a wall; the contact type transduction pickup in the second split type wall vibration microphone on the other side of the wall picks up mechanical vibration of the wall, converts the mechanical vibration of the wall into an electric signal, and drives the receiving loudspeaker to play through the pickup amplifying circuit; similarly, the user voice at one side of the second split type wall vibration sound transmission device can be picked up by the transmitting microphone in the second split type wall vibration sound transmission device and then played through the receiving loudspeaker in the first split type wall vibration sound transmission device; thereby completing the transmission of the voice signals on the two sides of the wall.
The buffer gasket sleeved on the shell handle at the upper end of the transduction housing has the function of buffering and absorbing vibration, so that poor resonance is effectively restrained, vibration can be quickly converged, and the problems of front-rear sound superposition, ambiguity and reverberation caused by poor resonance of a wall and slow vibration convergence can be effectively avoided; and because the transduction base plate is compressed and attached to the wall under the action of the magnetic force of the base plate adsorption magnet, the elastic annular structure can further inhibit poor resonance, accelerate vibration convergence, and avoid reverberation formed by superposition of vibration caused by non-convergence of the vibration in time (the reverberation can cause vague sound and cannot be identified).
Because the vibration transducer and the contact type transduction pickup are arranged on the same wall, when a user speaks into the transmitting microphone, the mechanical vibration converted by the vibration transducer can be picked up by the local contact type transduction pickup through the wall, and if the signal is converted into a sound signal, the sound signal is played through the local receiving loudspeaker to form side sound (namely, the user can hear own speaking sound through the local receiving loudspeaker), therefore, a side sound eliminating circuit is arranged on the audio processing circuit board, after the voice of the user picked up by the transmitting microphone is converted into an electric signal, the electric signal is sent to the side sound eliminating circuit, and the local vibration transducer signal picked up by the contact type transduction pickup is eliminated, so that the side sound is avoided; the howling suppression circuit can avoid howling, so that the volume of a loudspeaker is allowed to be increased, the vibration amplitude of a vibration transducer is improved, and better conversation quality is realized.
In the embodiment of the invention, because the receiving loudspeaker is very close to the wall, the sound wave emitted by the receiving loudspeaker can be transmitted to the wall to cause the vibration of the wall, the vibration is picked up by the contact type transduction pickup, and positive feedback howling can be formed by the sound wave transmitted back to the receiving loudspeaker through the circuit, so that the transmitting bearing component and the receiving bearing component are required to be separated for a certain distance to be installed, the influence of the sound wave of the receiving loudspeaker on the wall where the contact type transduction pickup is positioned is weakened, and howling is avoided; meanwhile, the horn mouth can also strengthen the sound wave directivity of the receiving loudspeaker, can weaken the transmission of sound waves to the wall direction, and further avoid howling.
Similarly, the signal of the transmitting microphone is sent to the vibration transducer through the circuit to drive the wall to vibrate, the vibration can also cause the surrounding air to vibrate, so that sound waves are formed, the sound waves are transmitted back to the transmitting microphone and form positive feedback howling, and the transmitting bearing assembly and the receiving bearing assembly are arranged at a certain distance from each other, so that the howling can be avoided; meanwhile, the sound pickup directivity of the sending microphone can be enhanced through the horn mouth, sound waves caused by back wall vibration can be effectively reduced and transmitted into the sending microphone, and howling can be further avoided.
Claims (6)
1. A split type wall vibration sound transmission device is characterized in that: the device comprises a transmitting assembly, a receiving assembly, an audio processing circuit board and two mutually separated bearing assemblies;
the transmitting assembly comprises a transmitting microphone and a vibration transducer for converting an electrical signal into mechanical vibration; the receiving assembly comprises a receiving loudspeaker and a contact type transduction pickup used for converting mechanical vibration into an electric signal;
one of the two bearing assemblies is a transmitting bearing assembly, and the other bearing assembly is a receiving bearing assembly; the bearing assembly comprises a transduction base plate; the vibration transducer is arranged on the transduction base plate of the transmitting bearing assembly, the contact type transduction pickup is arranged on the transduction base plate of the receiving bearing assembly, and the transduction base plate has elasticity and is used for pressing the vibration transducer and the contact type transduction pickup on a wall body;
the sound pickup amplifying circuit and the vibration driving circuit are mounted on the sound frequency processing circuit board;
the input side of the pickup amplifying circuit is connected with the contact type transduction pickup, and the output side of the pickup amplifying circuit is connected with the receiving loudspeaker;
the input side of the vibration driving circuit is connected with the transmitting microphone, and the output side of the vibration driving circuit is connected with the vibration transducer;
the energy conversion base plate is fixedly provided with a plurality of base plate adsorption magnets, the lower end of each base plate adsorption magnet is higher than the lower disc surface of the energy conversion base plate, and the energy conversion base plate can elastically deform to be level with the lower end of each base plate adsorption magnet;
the carrier assembly further comprises a transduction housing; the energy conversion base plate is provided with a middle hole which is vertically penetrated, a pressure spring is arranged in the middle hole of the energy conversion base plate, a plurality of fins which extend outwards and have elasticity are formed on the pressure spring, and the free ends of the fins of the pressure spring are respectively fixed on the energy conversion base plate;
the energy-converting housing is arranged in the middle hole of the energy-converting base plate, the upper end of the energy-converting housing is fixedly connected with the pressure spring, and the lower end of the energy-converting housing is lower than the lower plate surface of the energy-converting base plate; the vibration transducer is arranged in the transduction housing of the transmitting bearing assembly, and the contact type transduction pickup is arranged in the transduction housing of the receiving bearing assembly.
2. A split wall-mount microphone according to claim 1, wherein: the bottom of the transduction base plate is provided with a plurality of grooves.
3. A split wall-mount microphone according to claim 1, wherein: the audio processing circuit board is provided with a side sound eliminating circuit for eliminating side sound.
4. A split wall-mount microphone according to claim 1, wherein: the audio processing circuit board is provided with a howling suppression circuit for suppressing howling.
5. A split wall-mount microphone according to claim 1, wherein: the upper end of the transduction housing is provided with a housing handle, a buffer gasket is sleeved on the housing handle, and the transduction housing is fixedly connected with the pressure spring through the housing handle.
6. A split wall-mount microphone according to claim 1, wherein: the bearing assembly further comprises a bearing housing, the transduction base plate is arranged on the bearing housing, and a horn mouth is formed on the bearing housing;
the transmitting microphone is arranged on the bearing housing of the transmitting bearing assembly and is opposite to the narrow opening of the horn mouth on the bearing housing;
the receiving loudspeaker is arranged on the bearing housing of the receiving bearing assembly and faces the narrow opening of the horn mouth on the bearing housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810244114.9A CN108305610B (en) | 2018-03-23 | 2018-03-23 | Split wall vibration sound transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810244114.9A CN108305610B (en) | 2018-03-23 | 2018-03-23 | Split wall vibration sound transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108305610A CN108305610A (en) | 2018-07-20 |
| CN108305610B true CN108305610B (en) | 2024-02-20 |
Family
ID=62850555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810244114.9A Active CN108305610B (en) | 2018-03-23 | 2018-03-23 | Split wall vibration sound transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108305610B (en) |
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| CN201608891U (en) * | 2009-11-20 | 2010-10-13 | 王广林 | Audio frequency vibration generator |
| CN201742549U (en) * | 2009-11-30 | 2011-02-09 | 王晨曦 | Super-power sound conduction device for business windows |
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| CN204244584U (en) * | 2014-12-08 | 2015-04-01 | 费桂平 | A kind of anti-fall apparatus of electronic product and electronic product thereof |
| CN206061113U (en) * | 2016-10-11 | 2017-03-29 | 福建星海通信科技有限公司 | The emergent sound communication equipment of closed in space |
| CN207938314U (en) * | 2018-03-23 | 2018-10-02 | 苏州登堡电子科技有限公司 | The split type wall sound-conducting apparatus that shakes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI595788B (en) * | 2016-02-16 | 2017-08-11 | 智動全球股份有限公司 | Electro-acoustic transducer |
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2018
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| US3618062A (en) * | 1969-04-02 | 1971-11-02 | American District Telegraph Co | Vault protection system |
| GB1285786A (en) * | 1969-04-02 | 1972-08-16 | American District Telegraph Co | Improvements in or relating to electrical alarm systems |
| CN1193236A (en) * | 1998-03-10 | 1998-09-16 | 陈皞 | Integrated duct-type telephone transmitter and receiver with vibration acoustical pick-up device |
| CN1661891A (en) * | 2004-02-23 | 2005-08-31 | 三星电机株式会社 | Linear vibration motor using resonance frequency |
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| JP2009182758A (en) * | 2008-01-31 | 2009-08-13 | Audio Technica Corp | Unidirectional condenser microphone unit and line microphone |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108305610A (en) | 2018-07-20 |
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