CN113316063A - Combined loudspeaker - Google Patents
Combined loudspeaker Download PDFInfo
- Publication number
- CN113316063A CN113316063A CN202110865893.6A CN202110865893A CN113316063A CN 113316063 A CN113316063 A CN 113316063A CN 202110865893 A CN202110865893 A CN 202110865893A CN 113316063 A CN113316063 A CN 113316063A
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- Prior art keywords
- loudspeaker
- driving
- wall
- groove
- movable connecting
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- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 239000000725 suspension Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
- H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
- H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
- H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
- H04R1/026—Supports for loudspeaker casings
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
The invention discloses a combined loudspeaker, which relates to the technical field of sound equipment and comprises a shell cylinder and a plurality of loudspeaker bodies, wherein the loudspeaker bodies are annularly and uniformly distributed at one end edge of the shell cylinder, the tail part of each loudspeaker body is rotatably connected with the side part of the shell cylinder through a rotating part, the outer part of the shell cylinder is annularly sleeved with a movable connecting part, the inner wall of the movable connecting part is axially and slidably connected with the side wall of the shell cylinder, a driving mechanism for driving the movable connecting part to slide in the axial direction of the shell cylinder is arranged in the shell cylinder, the driving mechanism comprises a guide connecting part and a driving part, the driving part is arranged in the shell cylinder and is used for driving the movable connecting part to move and keeping a stable state after moving, and the guide connecting part is used for connecting the driving part with the movable connecting part and guiding the movement of the movable connecting part. The invention has simple structure, is convenient for adjusting the orientation of the loudspeaker body, and is suitable for various occasions to use the combined loudspeaker.
Description
Technical Field
The invention relates to the technical field of sound equipment, in particular to a combined loudspeaker.
Background
The speaker is also called a horn. It is a very common electroacoustic transducer, and can be found in electronic and electric equipment for producing sound. The loudspeaker is a transducer for converting an electric signal into an acoustic signal, and the quality of the loudspeaker has great influence on the sound quality. The loudspeaker is the weakest component in the audio equipment, and is the most important component for the audio effect. Loudspeakers are of a wide variety and vary widely in price. The audio frequency electric energy makes the paper cone or the diaphragm vibrate and generate resonance (resonance) with the surrounding air through electromagnetic, piezoelectric or electrostatic effect to make sound.
Most of the existing loudspeakers are arranged in a sound box and belong to one-way sound production; for some entertainment places, the pronunciation direction of the loudspeaker needs to be continuously changed by continuously changing the pronunciation direction, and the existing loudspeaker is only changed in a single direction and cannot simultaneously change the pronunciation direction to the surrounding pronunciation and the concentrated pronunciation.
Disclosure of Invention
The present invention is directed to a combination speaker to solve the problems of the related art.
In order to achieve the purpose, the invention provides the following technical scheme:
a combined loudspeaker comprises a shell cylinder and a plurality of loudspeaker bodies, wherein the plurality of loudspeaker bodies are uniformly distributed on the edge of one end of the shell cylinder in an annular mode, the tail part of each loudspeaker body is rotatably connected with the side part of the shell cylinder through a rotating part, the outer part of the shell cylinder is sleeved with a movable connecting part, the inner wall of the movable connecting part is axially and slidably connected with the side wall of the shell cylinder, the outer wall of each loudspeaker body is provided with a push-pull rod part, one end of the push-pull rod part, which is far away from the loudspeaker body, is hinged with the outer wall of the movable connecting part, a driving mechanism for driving the movable connecting part to slide along the axial direction of the outer shell is arranged in the outer shell, the driving mechanism comprises a guide connecting piece and a driving piece, the driving piece is arranged in the shell barrel, the guide connecting piece is used for connecting the driving piece and the mobile connecting part and guiding the movement of the mobile connecting part.
On the basis of the technical scheme, the invention also provides the following optional technical scheme:
in one alternative: the rotating part comprises a groove, a rotating shaft and a connecting sleeve, and the groove is formed in the edge of the end wall of the shell cylinder and used for hiding and installing the rotating shaft; the rotating shaft is arranged in the groove, the end part of the rotating shaft is detachably connected with the groove, and the connecting sleeve is arranged at the tail part of the loudspeaker body and is rotatably sleeved on the rotating shaft.
In one alternative: the direction connecting piece leads to groove, seat and transverse connecting rod including the direction, the direction leads to the groove and sets up on shell section of thick bamboo outer wall and length direction and shell section of thick bamboo axial the same, and the seat that slides is established and is led to inslot portion and with removal connecting portion inner wall fixed connection in the direction, and transverse connecting rod one end is led to the groove with seat fixed connection and the other end that slides and is passed and lead to and be connected with the driving piece.
In one alternative: the driving piece comprises a power piece, a vertical screw rod and a spiral sleeve, the vertical screw rod is arranged inside the shell barrel and coincides with the axis of the shell barrel, the power piece is arranged at the top of the shell barrel and used for driving the vertical screw rod to rotate, and the spiral sleeve is arranged on the vertical screw rod and is fixedly connected with the end parts of the lateral parts and the plurality of transverse connecting rods.
In one alternative: the end part of the outer shell far away from the loudspeaker body is further provided with an installation part, the installation part is fixedly connected with the outer shell through a plurality of fixed connecting rods, and the installation part is used for being fastened and connected with a suspension part for installing the loudspeaker.
In one alternative: the installation department includes hanging support plate and two curb plates, and two curb plates symmetry are established at the both sides side of hanging support plate and are used for through the mode of lateral wall or top portion trompil with hang the piece looks fastening connection.
In one alternative: the curb plate top is equipped with the bellying of a plurality of equidistance distributions, forms between two adjacent bellyings and can supply to hang the seam of wearing that the piece passed, has all seted up the connecting hole on bellying middle part and the curb plate lateral wall, is located the connecting hole on the curb plate lateral wall and wears the seam one-to-one.
Compared with the prior art, the invention has the following beneficial effects:
the loudspeaker uses the driving part to drive the movable connecting part to move along the axial direction of the shell barrel, drives the movable connecting part to move up and down, the movement of the movable connecting part drives the loudspeaker bodies to rotate around the rotating connection positions of the loudspeaker bodies and the shell barrel simultaneously through the rotating parts, the loudspeaker bodies can rotate to the side parts of the shell barrel and face to all directions respectively, and the sound waves can be conveniently diffused to the peripheral direction; increase the extent of its diffusion; when the plurality of loudspeaker bodies rotate to the port to face to one direction at the same time, the sound waves conducted by the loudspeaker bodies are mutually enhanced and spread to the same direction. The invention has simple structure, is convenient for adjusting the orientation of the loudspeaker body, and is suitable for various occasions to use the combined loudspeaker.
Drawings
Fig. 1 is a schematic view of the overall structure of the speaker according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a speaker body position distribution structure according to an embodiment of the present invention.
Fig. 3 is a schematic view of the internal structure of the housing tube in one embodiment of the invention.
Fig. 4 is a schematic view of a mounting portion according to an embodiment of the present invention.
Notations for reference numerals: the loudspeaker comprises a shell barrel 1, a loudspeaker body 2, a rotating part 3, a groove 31, a rotating shaft 32, a connecting sleeve 33, a movable connecting part 4, a push-pull rod part 5, a mounting part 6, a hanging support plate 61, a side plate 62, a protruding part 63, a connecting hole 64, a fixed connecting rod 7, a driving mechanism 8, a power part 81, a vertical wire rod 82, a spiral sleeve 83, a transverse connecting rod 84, a guide through groove 85 and a sliding seat 86.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments; in the drawings or the description, the same reference numerals are used for similar or identical parts, and the shape, thickness or height of each part may be enlarged or reduced in practical use. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.
In one embodiment, as shown in fig. 1 and fig. 2, a combination speaker includes a housing tube 1 and a plurality of speaker bodies 2, the plurality of speaker bodies 2 are annularly and uniformly distributed on one end edge of the housing tube 1, the tail portion of each speaker body 2 is rotatably connected with the side portion of the housing tube 1 through a rotating member 3, the outer portion of the housing tube 1 is annularly sleeved with a movable connecting portion 4, the inner wall of the movable connecting portion 4 is axially and slidably connected with the side wall of the housing tube 1, the outer wall of each speaker body 2 is provided with a push-pull rod portion 5, one end of the push-pull rod portion 5 away from the speaker body 2 is hinged with the outer wall of the movable connecting portion 4, the interior of the housing tube 1 is provided with a driving mechanism 8 for driving the movable connecting portion 4 to slide in the axial direction of the housing tube 1, the driving mechanism 8 includes a guiding connecting member and a driving member, the driving member is provided inside the housing tube 1 for driving the movable connecting portion 4 to move and maintain a stable state after moving, the guide connecting piece is used for connecting the driving piece and the movable connecting part 4 and guiding the movement of the movable connecting part 4;
in the implementation process of the embodiment, the driving part is used for driving the moving connecting part 4 to move along the axial direction of the housing tube 1, the moving connecting part 4 is driven to move up and down, the moving of the moving connecting part 4 drives the plurality of loudspeaker bodies 2 to rotate around the rotating connecting parts of the loudspeaker bodies and the housing tube 1 simultaneously through the plurality of rotating parts 3, the plurality of loudspeaker bodies 2 can rotate to the side part of the housing tube 1 and face to each direction respectively, and the sound waves can be conveniently diffused to the peripheral direction; increase the extent of its diffusion; when the plurality of speaker bodies 2 are rotated to the state that the ports face to one direction at the same time, and the sound waves conducted by the speaker bodies 2 are mutually enhanced and diffused to the same direction, as an embodiment, the left, right, up and down positions of each part shown in the drawing are only one arrangement mode, and the specific positions are set according to specific requirements; wherein, the movable connecting part 4 is an annular rod or an annular sleeve;
in one embodiment, as shown in fig. 1 and 3, the rotating member 3 includes a groove 31, a rotating shaft 32 and a connecting sleeve 33, wherein the groove 31 is opened at the edge of the end wall of the housing tube 1 and is used for hiding and installing the rotating shaft 32; the rotating shaft 32 is arranged in the groove 31, the end part of the rotating shaft is detachably connected with the groove, and the connecting sleeve 33 is arranged at the tail part of the loudspeaker body 2 and is rotatably sleeved on the rotating shaft 32; the detachable connection of the rotating shaft 32 and the groove 31 is convenient for the detachment, maintenance and replacement of the loudspeaker body 2, and the connecting sleeve 33 is rotatably sleeved on the rotating shaft 32 to facilitate the rotation direction of the loudspeaker body 2;
the rotating part 3 can be a damping rotating seat besides the structure disclosed in the above embodiment;
in one embodiment, as shown in fig. 3, the guiding connection member includes a guiding through slot 85, a sliding seat 86 and a transverse connection rod 84, the guiding through slot 85 is opened on the outer wall of the casing barrel 1, the length direction of the guiding through slot 85 is the same as the axial direction of the casing barrel 1, the sliding seat 86 is slidably arranged inside the guiding through slot 85 and is fixedly connected with the inner wall of the movable connection portion 4, one end of the transverse connection rod 84 is fixedly connected with the sliding seat 86, and the other end of the transverse connection rod 84 passes through the guiding through slot 85 to be connected with the driving member; wherein, the sliding seat 86 and the guiding through groove 85 are guided to slide to limit the transverse link 84 and the mobile connecting part 4 to move only along the axial direction of the shell barrel 1, and the driving part drives the sliding seat 86 to move up and down through the connection of the transverse link 84, so that the mobile connecting part 4 moves and keeps a stable state after moving;
in one embodiment, as shown in fig. 3, the driving member comprises a power member 81, a vertical screw rod 82 and a screw sleeve 83, the vertical screw rod 82 is arranged inside the outer casing 1 and coincides with the axis of the outer casing 1, the power member 81 is arranged at the top of the outer casing 1 and is used for driving the vertical screw rod 82 to rotate, the screw sleeve 83 is spirally arranged on the vertical screw rod 82, and the side part of the screw sleeve is fixedly connected with the ends of a plurality of transverse connecting rods 84; under the driving of the power part 81, the vertical screw rod 82 rotates, and the screw sleeve 83 moves along the vertical screw rod 82 by the screw fit with the screw sleeve 83, so that the screw sleeve 83 drives the movable connecting part 4 and the guide connecting part to move; wherein, the power component 81 is a servo motor or a pneumatic motor;
the driving piece can be a telescopic cylinder arranged at the central part of the shell barrel 1 besides the structure;
in one embodiment, as shown in fig. 1, the end of the outer casing tube 1 away from the loudspeaker body 2 is further provided with a mounting part 6, the mounting part 6 is fixedly connected with the outer casing tube 1 through a plurality of fixed connecting rods 7, and the mounting part 6 is used for being fastened and connected with a suspension member for mounting the loudspeaker;
in one embodiment, as shown in fig. 4, the mounting portion 6 includes a hanging plate 61 and two side plates 62, the two side plates 62 are symmetrically arranged at two sides of the hanging plate 61 and are used for being fastened and connected with the hanging piece by means of opening holes at the side walls or the top end portion; the two modes of connection can be convenient to adapt to the installation mode of the suspension piece structure or the whole loudspeaker;
in one embodiment, as shown in fig. 4, the top end of the side plate 62 is provided with a plurality of protruding portions 63 distributed at equal intervals, a penetrating seam through which the hanging piece can pass is formed between two adjacent protruding portions 63, the middle of each protruding portion 63 and the side wall of the side plate 62 are both provided with connecting holes 64, and the connecting holes 64 on the side wall of the side plate 62 correspond to the penetrating seams one to one; after the hanging piece is inserted into the penetrating seam, the hanging piece can be fastened with the hanging piece through the connecting holes 64 on the side walls of the side plates 62; the end part of the suspension piece can be tightly connected with the suspension piece through the connecting hole 64 on the bulge part 63; the installation mode of the suspension piece is convenient to adapt;
the above embodiment discloses a combined speaker, wherein the driving member is used to drive the movable connecting portion 4 to move along the axial direction of the housing tube 1, and drive the movable connecting portion 4 to move up and down, the movement of the movable connecting portion 4 drives the plurality of speaker bodies 2 to rotate around the rotating connection positions of the speaker bodies and the housing tube 1 through the plurality of rotating members 3, and the plurality of speaker bodies 2 can rotate to the side of the housing tube 1 and face each direction respectively, so that sound waves can be diffused to the peripheral direction conveniently; increase the extent of its diffusion; when the plurality of speaker bodies 2 are rotated simultaneously until the ports face in one direction, the sound waves conducted by the speaker bodies 2 are mutually enhanced and spread in the same direction.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (7)
1. A combined loudspeaker comprises a shell cylinder (1) and a plurality of loudspeaker bodies (2), wherein the loudspeaker bodies (2) are uniformly distributed on the edge of one end of the shell cylinder (1) in an annular mode, and the tail of each loudspeaker body (2) is rotatably connected with the side part of the shell cylinder (1) through a rotating part (3);
the outer part of the shell barrel (1) is sleeved with a movable connecting part (4) in a surrounding manner, and the inner wall of the movable connecting part (4) is axially connected with the side wall of the shell barrel (1) in a sliding manner;
a push-pull rod part (5) is arranged on the outer wall of each loudspeaker body (2), and one end, far away from the loudspeaker body (2), of each push-pull rod part (5) is hinged with the outer wall of the movable connecting part (4);
a driving mechanism (8) for driving the movable connecting part (4) to slide in the axial direction of the outer shell barrel (1) is arranged in the outer shell barrel (1);
the driving mechanism (8) comprises a guide connecting piece and a driving piece;
the driving piece is arranged in the shell barrel (1) and used for driving the movable connecting part (4) to move and keeping a stable state after moving;
the guiding connecting piece is used for connecting the driving piece and the movable connecting part (4) and guiding the movement of the movable connecting part (4).
2. The combination loudspeaker according to claim 1, characterized in that the rotating member (3) comprises a groove (31), a rotating shaft (32) and a connecting sleeve (33), the groove (31) is arranged at the edge of the end wall of the housing tube (1) and is used for hiding and mounting the rotating shaft (32); the rotating shaft (32) is arranged in the groove (31) and the end part of the rotating shaft is detachably connected with the groove, and the connecting sleeve (33) is arranged at the tail part of the loudspeaker body (2) and is rotatably sleeved on the rotating shaft (32).
3. The combination loudspeaker according to claim 1, wherein the guiding connection member comprises a guiding through groove (85), a sliding seat (86) and a cross connecting rod (84), the guiding through groove (85) is formed on the outer wall of the shell barrel (1) and has the same length direction as the axial direction of the shell barrel (1), the sliding seat (86) is slidably arranged in the guiding through groove (85) and is fixedly connected with the inner wall of the movable connection part (4), one end of the cross connecting rod (84) is fixedly connected with the sliding seat (86) and the other end of the cross connecting rod passes through the guiding through groove (85) to be connected with the driving member.
4. The combination loudspeaker of claim 3, wherein the driving member comprises a power member (81), a vertical screw rod (82) and a screw sleeve (83), the vertical screw rod (82) is arranged inside the housing cylinder (1) and is coincident with the axis of the housing cylinder (1), the power member (81) is arranged at the top of the housing cylinder (1) and is used for driving the vertical screw rod (82) to rotate, the screw sleeve (83) is arranged on the vertical screw rod (82) in a screw sleeve mode, and the side portion of the screw sleeve is fixedly connected with the end portions of the plurality of transverse connecting rods (84).
5. The combination loudspeaker of any one of claims 1 to 4, wherein the end of the outer casing (1) far away from the loudspeaker body (2) is further provided with a mounting part (6), the mounting part (6) is fixedly connected with the outer casing (1) through a plurality of fixed connecting rods (7), and the mounting part (6) is used for being tightly connected with a suspension part for mounting the loudspeaker.
6. The combination speaker as claimed in claim 5, wherein the mounting part (6) comprises a hanger plate (61) and two side plates (62), the two side plates (62) are symmetrically arranged at both sides of the hanger plate (61) and are used for being tightly connected with the hanger by means of an opening at the side wall or the top end part.
7. The combination loudspeaker of claim 6, wherein the top end of the side plate (62) is provided with a plurality of protruding parts (63) which are distributed at equal intervals, a penetrating seam through which the hanging part can penetrate is formed between two adjacent protruding parts (63), the middle part of each protruding part (63) and the side wall of the side plate (62) are respectively provided with a connecting hole (64), and the connecting holes (64) on the side wall of the side plate (62) are in one-to-one correspondence with the penetrating seams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110865893.6A CN113316063B (en) | 2021-07-29 | 2021-07-29 | Combined loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110865893.6A CN113316063B (en) | 2021-07-29 | 2021-07-29 | Combined loudspeaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113316063A true CN113316063A (en) | 2021-08-27 |
| CN113316063B CN113316063B (en) | 2021-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110865893.6A Active CN113316063B (en) | 2021-07-29 | 2021-07-29 | Combined loudspeaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113316063B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113825066A (en) * | 2021-11-23 | 2021-12-21 | 深圳市天泽扬声器有限公司 | Loudspeaker with variable orientation and method of use |
| CN114516303A (en) * | 2022-02-25 | 2022-05-20 | 苏州紫荆桃李科技有限公司 | Surface sounding and vibrating device for vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080137899A1 (en) * | 2006-12-12 | 2008-06-12 | Faurecia Interior Systems U.S.A., Inc. | Methods and Apparatus for Mounting a Loudspeaker |
| CN201164671Y (en) * | 2008-03-20 | 2008-12-17 | 李成春 | High-intensity focusing ultrasonic transducer positioning device |
| CN105979453A (en) * | 2016-07-28 | 2016-09-28 | 武汉艾立卡电子有限公司 | Optimized electronic loudspeaker |
| CN211909071U (en) * | 2020-05-21 | 2020-11-10 | 山西能源学院 | Listening test device is used in english teaching |
-
2021
- 2021-07-29 CN CN202110865893.6A patent/CN113316063B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080137899A1 (en) * | 2006-12-12 | 2008-06-12 | Faurecia Interior Systems U.S.A., Inc. | Methods and Apparatus for Mounting a Loudspeaker |
| CN201164671Y (en) * | 2008-03-20 | 2008-12-17 | 李成春 | High-intensity focusing ultrasonic transducer positioning device |
| CN105979453A (en) * | 2016-07-28 | 2016-09-28 | 武汉艾立卡电子有限公司 | Optimized electronic loudspeaker |
| CN211909071U (en) * | 2020-05-21 | 2020-11-10 | 山西能源学院 | Listening test device is used in english teaching |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113825066A (en) * | 2021-11-23 | 2021-12-21 | 深圳市天泽扬声器有限公司 | Loudspeaker with variable orientation and method of use |
| CN114516303A (en) * | 2022-02-25 | 2022-05-20 | 苏州紫荆桃李科技有限公司 | Surface sounding and vibrating device for vehicle |
| CN114516303B (en) * | 2022-02-25 | 2024-02-27 | 苏州紫荆桃李科技有限公司 | Surface sounding and vibrating device for vehicle |
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| Publication number | Publication date |
|---|---|
| CN113316063B (en) | 2021-09-28 |
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Effective date of registration: 20240402 Address after: 518000, Building 1, Building 601, Langkou Huaming Industrial Park, Langkou Community, Dalang Street, Longhua District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Times Tongchuang Electronic Technology Co.,Ltd. Country or region after: China Address before: 518000 e27b, whole floor, third floor, Jianingna Plaza, Chunfeng Road, Renmin South Road, Luohu community, Nanhu street, Luohu District, Shenzhen, Guangdong Patentee before: SHENZHEN TCG AUDIO FREQUENCY TECHNOLOGY CO.,LTD. Country or region before: China |
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