CN113993046B - Insertion rotary backing type loudspeaker - Google Patents
Insertion rotary backing type loudspeaker Download PDFInfo
- Publication number
- CN113993046B CN113993046B CN202111374130.8A CN202111374130A CN113993046B CN 113993046 B CN113993046 B CN 113993046B CN 202111374130 A CN202111374130 A CN 202111374130A CN 113993046 B CN113993046 B CN 113993046B
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- China
- Prior art keywords
- periphery
- rotary
- rotating
- ring body
- groove
- 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.)
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Links
- 238000003780 insertion Methods 0.000 title claims description 4
- 230000037431 insertion Effects 0.000 title claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000428 dust Substances 0.000 claims abstract description 9
- 239000000725 suspension Substances 0.000 claims description 29
- 238000005192 partition Methods 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 3
- 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 2
- 239000000306 component Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- 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
- 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
- H04R2400/00—Loudspeakers
- H04R2400/11—Aspects regarding the frame of loudspeaker transducers
Abstract
The invention discloses a plug-in rotary backing type loudspeaker, which comprises an outer shell, a vibrating diaphragm, a dust cover, an annular bracket, a voice coil, a magnet, a plug-in rotary backing mechanism and an iron core, wherein the outer shell is provided with a first end and a second end; according to the invention, the traditional connecting structure is changed, the voice coil and the annular bracket are in a detachable movable connecting structure, so that the voice coil is quickly detached and assembled, and the replacement parts and the replacement time are reduced.
Description
Technical Field
The invention relates to a plug-in rotary fallback type loudspeaker.
Background
The loudspeaker is a transducer for converting electric signals into acoustic signals, and the performance of the loudspeaker has great influence on sound quality. The loudspeaker is the weakest element in the sound equipment and is in turn the most important component for the sound effect. Speakers are of a wide variety and are widely priced. The audio electric energy makes the cone or the diaphragm vibrate and generate resonance with surrounding air to make sound through electromagnetic, piezoelectric or electrostatic effect; the existing loudspeaker is generally formed by bonding a vibrating diaphragm, an annular support, a dust cover and a voice coil together through glue, so that the voice coil drives the whole system to vibrate and sound, but the voice coil can generate high heat after being used for a long time as a core component of the loudspeaker, so that the voice coil burns out the phenomenon that the loudspeaker is quite common, when the voice coil needs to be replaced, the vibrating diaphragm, the annular support and the dust cover are all required to be detached from an external shell together, a plurality of components are damaged, the replacement cost is high, and the assembly is quite complex.
Disclosure of Invention
Aiming at the defects of the prior art, the invention solves the problems that: the rotary backing type loudspeaker can be used for independently replacing the voice coil and is rapid in disassembly and assembly.
In order to solve the problems, the invention adopts the following technical scheme:
a plug-in rotary backing type loudspeaker comprises an outer shell, a vibrating diaphragm, a dust cover, an annular bracket, a voice coil, a magnet, a plug-in rotary backing mechanism and an iron core; the sound producing cavity is arranged in the upper part of the outer shell, the middle cavity is arranged in the middle of the lower part of the outer shell, and the accommodating grooves are formed in the two sides of the middle cavity; a magnet is respectively arranged in the accommodating groove; annular brackets are arranged around the sounding cavity; a vibrating diaphragm is arranged above the annular support; a dust cover is arranged around the upper end of the vibrating diaphragm; the inserting rotary backing mechanism comprises an upper positioning ring body, a lower rotating ring body, a suspension plate, a telescopic positioning column and a rotating base; the lower sides of the periphery of the middle of the annular bracket are provided with positioning ring bodies; the lower end of the upper positioning ring body is screwed with a lower rotating ring body through internal threads; the lower end of the lower rotating ring body is provided with a suspension plate; the middle lower side of the suspension plate is provided with a splicing groove; the lower sides of the two ends of the suspension plate are fixedly arranged on the two sides of the upper end of the voice coil; the rotating base is movably connected with the middle of the bottom of the middle cavity of the outer shell; an iron core is arranged at the upper end of the rotating base; the iron core is positioned in the middle cavity and positioned between the magnets; the upper end of the iron core is connected to the inside of the voice coil in a penetrating way; the telescopic positioning column is clamped in the middle of the inside of the iron core in an up-down sliding manner; the telescopic positioning column extends upwards from the middle of the inner part of the iron core and is inserted into the inserting groove of the suspension plate, the rotating base rotates to drive the lower rotating ring body to downwards unscrew from the lower thread of the upper positioning ring body, and the voice coil is driven to downwards withdraw from the middle cavity to the outer part of the outer shell.
Further, the inserting rotary retreating mechanism also comprises a sliding latch, a floating screw cylinder, a rotating head and an inserting screw rod; a longitudinal through slot is formed in the iron core; a lower extension groove is formed in the middle of the rotating base; the lower end of the longitudinal cross-connection groove is communicated with the upper end of the lower extension groove; sliding clamping grooves are respectively formed in two sides of the longitudinal through-connection groove of the iron core; two sides of the telescopic positioning column are respectively provided with a sliding latch; the sliding clamping teeth on two sides of the telescopic positioning column are clamped on the sliding clamping groove in an up-and-down sliding manner; the lower end of the telescopic positioning column is provided with a floating screw cylinder; the inner thread at the lower end of the floating screw barrel is screwed with an inserting screw rod; the lower end of the plug-in screw is provided with a rotating head; the rotating head is rotationally clamped on the lower extending groove in the middle of the inner part of the rotating base.
Further, a partition plate is arranged in the middle of the lower extending groove in the middle of the rotating base; the partition board is provided with a rotary clamping groove; the outer sides of the periphery of the upper end of the rotating head are provided with rotary clamping rings; the rotating head is rotationally clamped on the rotary clamping groove of the partition plate through the rotary clamping ring.
Further, a toggle rod is arranged below the lower extending groove in the middle of the inside of the rotating base.
Furthermore, the cross sections of the inserting grooves and the telescopic positioning columns at the lower side in the middle of the suspension plate are rectangular structures.
Further, an inner thread ring surface is arranged on the inner side wall inside the periphery of the lower end of the upper positioning ring body; an external thread ring surface is arranged on the inner side of the periphery of the lower rotating ring body; the external thread ring surface is screwed on the outer side of the periphery of the internal thread ring surface.
Further, a plurality of through holes are formed in the periphery of the rotating base; a plurality of threaded holes are uniformly formed in the periphery of the lower end of the middle cavity of the outer shell; the through holes and the threaded holes are respectively in one-to-one correspondence; the through hole and the threaded hole are connected through screws respectively.
Further, the vibrating diaphragm is distributed in a conical structure with a large upper part and a small lower part, the periphery of the lower end of the vibrating diaphragm is connected with the periphery of the middle upper end of the annular support, and the periphery of the upper end of the vibrating diaphragm is connected with the periphery inner side of the upper end of the outer shell.
The beneficial effects of the invention are as follows:
the upper part of the voice coil is provided with the suspension plate, the upper part of the suspension plate is provided with the lower rotating ring body, the lower side of the periphery of the middle of the annular bracket is provided with the upper positioning ring body, the lower rotating ring body and the upper positioning ring body are connected in a rotating way through the threaded ring surface, the inserting screw is driven to rotate through the rotation of the rotating head, the floating screw cylinder and the telescopic positioning column are driven to move upwards when the inserting screw rotates, the upper end of the telescopic positioning column is inserted into the inserting groove of the suspension plate, a synchronous rotating structure of the telescopic positioning column and the suspension plate is formed, at the moment, the rotating base and the screw of the outer shell are detached, and then the lower rotating ring body is screwed downwards from the lower side of the upper positioning ring body through the rotation of the rotating base, and the voice coil and the iron core are driven to retreat downwards from the middle cavity to the outside of the outer shell, so that the voice coil can be overhauled and replaced; therefore, the invention changes the traditional connecting structure, adopts the detachable movable connecting structure for the voice coil and the annular bracket, realizes the quick disassembly and assembly of the voice coil, and reduces the replacement parts and the replacement time.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of a partially enlarged structure of fig. 1 according to the present invention.
Fig. 3 is a partially enlarged schematic view of the upper side of fig. 2 according to the present invention.
Fig. 4 is a schematic view of a partial enlarged structure of the lower side of fig. 2 according to the present invention.
Fig. 5 is a partially enlarged schematic view of the connection between the rotating base and the outer housing.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, a plug-in rotary backing type speaker comprises an outer housing 1, a vibrating diaphragm 3, a dust cover 4, an annular bracket 2, a voice coil 7, a magnet 5, a plug-in rotary backing mechanism 8, and an iron core 6; the sounding cavity 11 is arranged in the upper part of the outer shell 1, the middle cavity 12 is arranged in the middle of the lower part of the outer shell 1, and the accommodating grooves 15 are formed in the two sides of the middle cavity 12; a magnet 5 is respectively arranged in the accommodating groove 15; annular brackets 2 are arranged around the sounding cavity 11; a vibrating diaphragm 3 is arranged above the annular bracket 2; a dust cover 4 is arranged around the upper end of the vibrating diaphragm 3; the plugging rotary backing mechanism 8 comprises an upper positioning ring body 81, a lower rotating ring body 82, a suspension plate 83, a telescopic positioning column 84 and a rotating base 85; the lower sides of the periphery of the middle of the annular bracket 2 are provided with positioning ring bodies 81; the lower end of the upper positioning ring body 81 is internally screwed with a lower rotating ring body 82; a suspension plate 83 is arranged at the lower end of the lower rotating ring body 82; a plugging groove 831 is arranged on the lower middle side of the suspension plate 83; the lower sides of the two ends of the suspension plate 83 are fixedly arranged on the two sides of the upper end 7 of the voice coil; the rotating base 85 is movably connected to the middle of the bottom of the middle cavity 12 of the outer shell 1; the upper end of the rotating base 85 is provided with an iron core 6; the iron core 6 is positioned in the middle cavity 12 and between the magnets 5; the upper end of the iron core 6 is connected to the inside of the voice coil 7 in a penetrating way; the telescopic positioning column 84 is clamped in the middle of the interior of the iron core 6 in an up-down sliding manner; the telescopic positioning column 84 extends upwards from the middle of the inside of the iron core 6 and is inserted into the insertion groove 831 of the suspension plate 83, the rotating base 85 rotates to drive the lower rotating ring 82 to downwards screw out from the lower thread of the upper positioning ring 81, and the voice coil 7 is driven to downwards withdraw from the middle cavity 12 to the outside of the outer casing 1.
As shown in fig. 1 to 5, it is further preferable that the plugging rotary backing mechanism 8 further includes a sliding latch 87, a floating screw 86, a rotary head 89, and a plugging screw 88; a longitudinal through slot 61 is arranged in the iron core 6; a lower extension groove 851 is arranged in the middle of the rotating base 85; the lower end of the longitudinal through slot 61 is communicated with the upper end of the lower extension slot 851; sliding clamping grooves 62 are respectively formed on two sides of the longitudinal through groove 61 of the iron core 6; two sides of the telescopic positioning column 84 are respectively provided with a sliding latch 87; the sliding clamping teeth 87 on the two sides of the telescopic positioning column 84 are clamped on the sliding clamping groove 62 in an up-and-down sliding manner; a floating screw cylinder 86 is arranged at the lower end of the telescopic positioning column 84; the inner thread at the lower end of the floating screw barrel 86 is screwed with an inserting screw rod 88; a rotating head 89 is arranged at the lower end of the plug-in screw 88; the rotating head 89 is rotatably clamped on the lower extending groove 851 in the middle of the inside of the rotating base 85.
As shown in fig. 1 to 5, it is further preferable that a partition 853 is provided in the middle of the lower extension groove 851 in the middle of the inside of the rotation base 85; a rotary clamping groove 854 is formed in the partition 853; a rotary clamping ring 891 is arranged on the outer side around the upper end of the rotary head 89; the rotating head 89 is rotationally clamped on the rotary clamping groove 854 of the partition 853 through the rotary clamping ring 891. Further, a toggle rod 852 is disposed below the lower extension groove 851 in the middle of the inside of the rotating base 85. Further, the cross sections of the inserting grooves 831 and the telescopic positioning columns 84 at the lower side of the middle of the suspension plate 83 are rectangular structures. Further, an inner side wall inside the periphery of the lower end of the upper positioning ring body 81 is provided with an inner thread ring surface; an external thread ring surface is arranged on the inner side of the periphery of the lower rotating ring body 82; the external thread ring surface is screwed on the outer side of the periphery of the internal thread ring surface. Further, a plurality of through holes 13 are formed around the rotating base 85; a plurality of threaded holes 14 are uniformly formed in the periphery of the lower end of the middle cavity 12 of the outer shell 1; the through holes 13 and the threaded holes 14 are respectively in one-to-one correspondence; the through-hole 13 and the threaded hole 14 are connected by a screw 9, respectively. Further, the vibrating diaphragm 3 is distributed in a conical structure with a large upper part and a small lower part, the periphery of the lower end of the vibrating diaphragm 3 is connected with the periphery of the middle upper end of the annular support 2, and the periphery of the upper end of the vibrating diaphragm 3 is connected with the periphery inner side of the upper end of the outer shell 1.
According to the invention, a suspension plate 83 is arranged above a voice coil 7, a lower rotating ring body 82 is arranged above the suspension plate 83, an upper positioning ring body 81 is arranged on the lower side around the middle of an annular support 2, the lower rotating ring body 82 and the upper positioning ring body 81 are connected in a screwed mode through a threaded ring surface, an inserting screw rod 88 is driven to rotate through rotation of a rotating head 89, a floating screw cylinder 86 and a telescopic positioning column 84 are driven to move upwards when the inserting screw rod 88 rotates, the upper end of the telescopic positioning column 84 is inserted into an inserting groove 831 of the suspension plate 83, a synchronous rotating structure of the telescopic positioning column 84 and the suspension plate 83 is formed, at the moment, a rotating base 85 is detached from a screw 9 of an outer shell 1, then the lower rotating ring body 82 is screwed out downwards from the lower threads of the upper positioning ring body 81 through rotation of the rotating base 85, and the voice coil 7 and an iron core 6 are driven to exit to the outside of the outer shell 1 downwards from a middle cavity 12, and maintenance and replacement of the voice coil 7 can be realized; therefore, the invention changes the traditional connecting structure, adopts a detachable movable connecting structure for the voice coil 7 and the annular bracket 2, realizes quick disassembly and assembly of the voice coil 7, and reduces the replacement parts and the replacement time.
The invention is assembled by the following steps: the upper end of the telescopic positioning column 84 is inserted into the inserting groove 831 of the suspension plate 83, the floating screw barrel 86 and the telescopic positioning column 84 are driven to move downwards when the inserting screw 88 rotates by pushing against the suspension plate 83 and the lower rotating ring 82 to enter the middle cavity 12, the lower rotating ring 82 is screwed upwards from the lower thread of the upper positioning ring 81 by rotating the rotating base 85, the lower rotating ring 82 and the upper positioning ring 81 are connected well, the rotating base 85 is abutted with the bottom of the middle cavity 12 and then fixedly connected through the screw 9, and finally the inserting screw 88 rotates by rotating the rotating head 89, so that the upper end of the telescopic positioning column 84 is separated from the inserting groove 831 of the suspension plate 83 downwards, and free vibration of the voice coil 7 is achieved.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (6)
1. The utility model provides a rotatory formula speaker of withdrawing of grafting, its characterized in that includes external casing, vibrating diaphragm, dust cover, annular support, voice coil loudspeaker voice coil, magnet, grafting rotatory withdrawal mechanism, iron core; the sound producing cavity is arranged in the upper part of the outer shell, the middle cavity is arranged in the middle of the lower part of the outer shell, and the accommodating grooves are formed in the two sides of the middle cavity; a magnet is respectively arranged in the accommodating groove; annular brackets are arranged around the sounding cavity; a vibrating diaphragm is arranged above the annular support; a dust cover is arranged around the upper end of the vibrating diaphragm; the inserting rotary backing mechanism comprises an upper positioning ring body, a lower rotating ring body, a suspension plate, a telescopic positioning column and a rotating base; the lower sides of the periphery of the middle of the annular bracket are provided with positioning ring bodies; the lower end of the upper positioning ring body is screwed with a lower rotating ring body through internal threads; the lower end of the lower rotating ring body is provided with a suspension plate; the middle lower side of the suspension plate is provided with a splicing groove; the lower sides of the two ends of the suspension plate are fixedly arranged on the two sides of the upper end of the voice coil; the rotating base is movably connected with the middle of the bottom of the middle cavity of the outer shell; an iron core is arranged at the upper end of the rotating base; the iron core is positioned in the middle cavity and positioned between the magnets; the upper end of the iron core is connected to the inside of the voice coil in a penetrating way; the telescopic positioning column is clamped in the middle of the inside of the iron core in an up-down sliding manner; the telescopic positioning column extends upwards from the middle of the inner part of the iron core and is inserted into the insertion groove of the suspension plate, the rotating base rotates to drive the lower rotating ring body to downwards unscrew from the lower thread of the upper positioning ring body, and the voice coil is driven to downwards withdraw from the middle cavity to the outer part of the outer shell; the inserting rotary backing mechanism also comprises a sliding latch, a floating screw cylinder, a rotating head and an inserting screw; a longitudinal through slot is formed in the iron core; a lower extension groove is formed in the middle of the rotating base; the lower end of the longitudinal cross-connection groove is communicated with the upper end of the lower extension groove; sliding clamping grooves are respectively formed in two sides of the longitudinal through-connection groove of the iron core; two sides of the telescopic positioning column are respectively provided with a sliding latch; the sliding clamping teeth on two sides of the telescopic positioning column are clamped on the sliding clamping groove in an up-and-down sliding manner; the lower end of the telescopic positioning column is provided with a floating screw cylinder; the inner thread at the lower end of the floating screw barrel is screwed with an inserting screw rod; the lower end of the plug-in screw is provided with a rotating head; the rotating head is rotationally clamped on a lower extending groove in the middle of the inside of the rotating base; the cross sections of the inserting grooves and the telescopic positioning columns at the lower side in the middle of the suspension plate are rectangular structures.
2. The plug-in rotary fallback type loudspeaker according to claim 1, wherein a partition plate is arranged in the middle of the lower extension groove in the middle of the inside of the rotary base; the partition board is provided with a rotary clamping groove; the outer sides of the periphery of the upper end of the rotating head are provided with rotary clamping rings; the rotating head is rotationally clamped on the rotary clamping groove of the partition plate through the rotary clamping ring.
3. The jack-in swivel-fallback type loudspeaker of claim 1 wherein a toggle lever is provided below the lower extension slot in the middle of the interior of the swivel base.
4. The plug-in rotary backing type loudspeaker according to claim 1, wherein an inner side wall inside the periphery of the lower end of the upper positioning ring body is provided with an inner thread ring surface; an external thread ring surface is arranged on the inner side of the periphery of the lower rotating ring body; the external thread ring surface is screwed on the outer side of the periphery of the internal thread ring surface.
5. The plug-in rotary fallback type loudspeaker according to claim 1, wherein a plurality of through holes are arranged around the rotary base; a plurality of threaded holes are uniformly formed in the periphery of the lower end of the middle cavity of the outer shell; the through holes and the threaded holes are respectively in one-to-one correspondence; the through hole and the threaded hole are connected through screws respectively.
6. The plug-in rotary refund type loudspeaker of claim 1, wherein the vibrating membrane is distributed in a conical structure with a large upper part and a small lower part, the periphery of the lower end of the vibrating membrane is connected to the periphery of the middle upper end of the annular bracket, and the periphery of the upper end of the vibrating membrane is connected to the inner side of the periphery of the upper end of the outer shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111374130.8A CN113993046B (en) | 2021-11-19 | 2021-11-19 | Insertion rotary backing type loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111374130.8A CN113993046B (en) | 2021-11-19 | 2021-11-19 | Insertion rotary backing type loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113993046A CN113993046A (en) | 2022-01-28 |
| CN113993046B true CN113993046B (en) | 2024-03-26 |
Family
ID=79749546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111374130.8A Active CN113993046B (en) | 2021-11-19 | 2021-11-19 | Insertion rotary backing type loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113993046B (en) |
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| KR20100088257A (en) * | 2009-01-30 | 2010-08-09 | 충남대학교산학협력단 | Flat vibration speaker using magnetostrictive actuator |
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| CN211860541U (en) * | 2020-05-31 | 2020-11-03 | 淮安伟跃汽车配件有限公司 | Voice coil loudspeaker with wire harness protection structure |
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|---|---|---|---|---|
| US7225895B2 (en) * | 1998-11-30 | 2007-06-05 | Joseph Yaacoub Sahyoun | Audio speaker with wobble free voice coil movement |
| US7715584B2 (en) * | 2006-01-03 | 2010-05-11 | Jl Audio, Inc. | Loudspeaker with air deflector |
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|---|---|---|---|---|
| KR20100088257A (en) * | 2009-01-30 | 2010-08-09 | 충남대학교산학협력단 | Flat vibration speaker using magnetostrictive actuator |
| CN204145742U (en) * | 2014-09-05 | 2015-02-04 | 寻乌县爱馨泰电子商贸有限公司 | A kind of motor-operated horn with vibration transmission mechanism |
| CN107493550A (en) * | 2017-09-20 | 2017-12-19 | 长兴三通能源科技有限公司 | It is a kind of can anti-extraneous magnetic disturbance and can anti-power failure loudspeaker |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113993046A (en) | 2022-01-28 |
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