CN108040309A - A kind of audio playing apparatus and its application method - Google Patents
A kind of audio playing apparatus and its application method Download PDFInfo
- Publication number
- CN108040309A CN108040309A CN201711308600.4A CN201711308600A CN108040309A CN 108040309 A CN108040309 A CN 108040309A CN 201711308600 A CN201711308600 A CN 201711308600A CN 108040309 A CN108040309 A CN 108040309A
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- Prior art keywords
- installation
- groove
- location
- hole
- speaker body
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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
- H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers
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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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention discloses a kind of audio playing apparatus,Including device case,The inside of described device housing offers installation chamber,The intracavity bottom of the installation chamber is installed with playing device main body,Being internally located above playing device main body for chamber of installation is provided with speaker body,The speaker body is fixedly connected by conducting wire with playing device main body,Location and installation part is provided with above the speaker body,The inner wall of the installation chamber is installed with and the corresponding limit card board of location and installation part,Offered in the middle part of the limit card board and the corresponding through hole of speaker body,The speaker body is connected through through hole with playing device main body,The location and installation part is located at the outer fix of speaker body and the corresponding position of limit card board offers threaded hole,It is larger that the present invention solves conventional audio playing device sound dispersion,And effect it is bad the problem of；It can be widely applied to field of audio play.
Description
Technical field
The present invention relates to field of audio play, is specially a kind of audio playing apparatus and its application method.
Background technology
With the continuous development of electronic product, audio, which plays, is increasingly becoming essential part in life, and in outdoor
When carrying out audio broadcasting, since environment is spacious, the propagation of sound is more scattered, and the result of broadcast of sound is simultaneously bad.
The content of the invention
It is an object of the invention to provide a kind of audio playing apparatus and its application method, to solve in above-mentioned background technology
The problem of proposition.
To achieve the above object, the present invention provides following technical solution：
A kind of audio playing apparatus, including device case, the inside of described device housing offer installation chamber, the peace
The intracavity bottom of room of behaveing affectedly is installed with playing device main body, and the installation chamber is internally located at the upper of playing device main body
Side is provided with speaker body, and the speaker body is fixedly connected by conducting wire with playing device main body, the loudspeaker master
Location and installation part is provided with above body, the inner wall for installing chamber is installed with corresponding spacing with location and installation part
Snap-gauge, offers in the middle part of the limit card board and passes through through hole with the corresponding through hole of speaker body, the speaker body
Be connected with playing device main body, the location and installation part be located at speaker body outer fix and limit card board it is corresponding
Position offers threaded hole, and is fixed between location and installation part and limit card board by bolt thread, and described device housing is remote
Side from playing device main body is opening, and the inside that described device housing is located at open-mouth is installed with limit installation block,
The inside that block is mounted is installed with dust preventing component.
Preferably, the dust preventing component includes installation through-hole, Air Filter installing frame and Air Filter, the Air Filter installing frame
Surface offer mounting groove, the Air Filter is fixedly mounted on the inside of mounting groove, and the Air Filter installing frame is slidably installed
In the inside of installation through-hole, the installation through-hole be opened in be mounted block surface, the inner surface of the installation through-hole and
The outer surface of Air Filter installing frame is separately installed with internal thread and external screw thread, and the Air Filter installing frame is by internal thread and outside
Screw thread is screwed with block is mounted, and the dust preventing component and speaker body is correspond structure, and quantity is at least
Two groups, and on the surface of device case successively linear array.
Preferably, soundproofing member, the soundproofing member bag are both provided with inside the corresponding two side of described device housing
Include sound panel and groove is mounted, the groove that is mounted offers sliding through hole positioned at the side of installation chamber open-mouth, institute
The inside for being connected to limit installation groove, the internal slide that groove is mounted are slided by sliding through hole in the one end for stating sound panel
Location and installation bar is installed, the both ends of the location and installation bar are installed with position limiting slide block, and the sound panel is located at spacing peace
The inside end of tankage is fixedly connected with location and installation bar, and the inner side for being internally located at location and installation bar that groove is mounted is set
Have with the corresponding length adjustment component of sound panel, the length adjustment component includes electric pushrod and is slidably installed groove, described
The groove that is slidably installed is opened in a side surface of the inside away from sliding through hole that groove is mounted, and one end of the electric pushrod is fixed
Installed in the inner bottom surface for the groove that is slidably installed, the one end of the electric pushrod away from the groove that is slidably installed is installed with clamping piece,
The inside of the clamping piece is offered passes through card slot and clamping piece with the corresponding card slot of location and installation bar, the location and installation bar
Grip.
Preferably, the bottom of described device housing is provided with support component, and the support component includes support column and support
Bottom plate, surface and the corresponding position of support column of the support baseboard are installed with threaded mount, the support column
Top surface is fixedly connected with the bottom surface of device case, and the bottom surface of the support column is offered to be led to the corresponding screw thread of threaded mount
Hole, the support baseboard are fixedly connected by threaded mount and tapped through hole with device case, the both sides of the support component
Angular adjustment component is provided with, the angular adjustment component includes drive motor and installation housing, the top surface of the installation housing
Installation card slot is offered, the drive motor is fixedly mounted on the inside of installation housing, the drive motor by installing card slot
The bottom surface side wall of shaft end through device case reach the inside that groove is mounted, the drive motor shaft is located at spacing peace
The inside end of tankage is fixedly connected with the position limiting slide block of location and installation bar bottom, and the bottom surface of described device housing offers and drives
The corresponding sliding slot of motor shaft, the bottom of the installation housing offer rotary spacing groove, the inside of the rotary spacing groove
Rotation is connected with ball, and the bottom surface of the ball is contacted with the top surface of support baseboard.
Preferably, the application method of a kind of audio playing apparatus, mainly including the following aspects：
A. the broadcasting of audio
By the combination of playing device main body and speaker body, the broadcasting of audio is carried out, and by installation cavity
The inside of room sets limit card board and the location and installation part of speaker body side to be connected and fixed, while by the outside of it
Corresponding position opens up threaded hole, is consolidated again using bolt, the installation being convenient for people to, by speaker body
Outside, which is set, is mounted the installation that block carries out dust preventing component, avoids the entrance of dust, causes the damage of speaker body；
B. the orientation of sound
Being slidably installed for groove progress sound panel is mounted by being opened up inside the corresponding two side of device case, and
And the length adjustment component being made of electric pushrod and the groove that is slidably installed is set inside it, so that the length of sound panel is adjusted,
Processing is oriented to sound, so that be convenient for people to be used, and by being set in the bottom of device case by driving horse
The angular adjustment component of housing composition is reached and installs, so that the angle between sound panel and device case be adjusted so that
The orientation range of sound is more extensive.
Compared with prior art, the beneficial effects of the invention are as follows：A kind of audio playing apparatus and its application method are provided,
Solves the problem of conventional audio playing device sound dispersion is larger, and effect is bad；It can be widely applied to field of audio play.It is logical
The inside for setting dust preventing component to avoid dust intrusion device housing is crossed, influences the use of playing device main body and speaker body；
And by way of opening up and groove slip setting sound panel be mounted so that sound panel can be in the both sides pair of speaker body
Sound carries out barrier adjustment, so that the direction of sound is oriented, so that it is convenient for people to use, and in device case
Bottom is set drives sound panel to carry out the rotation of angle by drive motor, so as to improve the scope of application of sound panel, improves sound
Guide range.
Brief description of the drawings
Fig. 1 is the top surface structure sectional view of the present invention；
Fig. 2 is the Facad structure sectional view of the present invention.
Figure label：1 device case, 2 installation chambers, 3 playing device main bodys, 4 speaker bodies, 5 location and installation parts, 6
Block, 9 dust preventing components, 10 installation through-holes, 11 Air Filter installing frames, 12 Air Filters, 13 peaces are mounted in limit card board, 7 through holes, 8
Groove, 19 sliding through holes, 20 location and installations are mounted in tankage, 14 internal threads, 15 external screw threads, 16 soundproofing members, 17 sound panels, 18
Bar, 21 position limiting slide blocks, 22 length adjustment components, 23 electric pushrods, 24 are slidably installed groove, 25 clamping pieces, 26 card slots, 27 support groups
Part, 28 support columns, 29 support baseboards, 30 threaded mounts, 31 tapped through holes, 32 angular adjustment components, 33 drive motors, 34 peaces
Fill housing, 35 installation card slots, 36 sliding slots, 37 rotary spacing grooves, 38 balls.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
- 2 are please referred to Fig.1, the present invention provides a kind of technical solution：
A kind of audio playing apparatus, including device case 1, the inside of device case 1 offer installation chamber 2, installation cavity
The intracavity bottom of room 2 is installed with playing device main body 3, and the top for being internally located at playing device main body 3 of installation chamber 2 is set
Speaker body 4 is equipped with, speaker body 4 is fixedly connected by conducting wire with playing device main body 3, the top of speaker body 4
Location and installation part 5 is provided with, the inner wall of installation chamber 2 is installed with limit card board 6 corresponding with location and installation part 5, limits
The middle part of position snap-gauge 6 offers through hole 7 corresponding with speaker body 4, and speaker body 4 passes through through hole 7 and playing device
Main body 3 connects, and location and installation part 5 is located at the outer fix of speaker body 4 and 6 corresponding position of limit card board opens up
There is threaded hole, and fixed between location and installation part 5 and limit card board 6 by bolt thread, device case 1 is away from playing device master
The side of body 3 is opening, and the inside that device case 1 is located at open-mouth is installed with limit installation block 8, block 8 is mounted
Inside is installed with dust preventing component 9.
Dust preventing component 9 includes installation through-hole 10, Air Filter installing frame 11 and Air Filter 12, the surface of Air Filter installing frame 11
Mounting groove 13 is offered, Air Filter 12 is fixedly mounted on the inside of mounting groove 13, and Air Filter installing frame 11 is slidably mounted on installation
The inside of through hole 10, installation through-hole 10 are opened in the surface that block 8 is mounted, inner surface and the Air Filter peace of installation through-hole 10
Frame up 11 outer surface is separately installed with internal thread 14 and external screw thread 15, and Air Filter installing frame 11 passes through internal thread 14 and outer spiral shell
Line 15 is screwed with block 8 is mounted, and dust preventing component 9 and speaker body 4 is correspond structure, and quantity is at least two
Group, and on the surface of device case 1 successively linear array.
Soundproofing member 16 is both provided with inside 1 corresponding two side of device case, soundproofing member 16 includes sound panel 17
With limit installation groove 18, groove 18 is mounted and offers sliding through hole 19, sound panel 17 positioned at the side of installation 2 open-mouth of chamber
One end by sliding through hole 19 slide be connected to be mounted groove 18 inside, be mounted groove 18 internal slide be provided with
Location and installation bar 20, the both ends of location and installation bar 20 are installed with position limiting slide block 21, and sound panel 17 is positioned at limit installation groove 18
Inside end be fixedly connected with location and installation bar 20, be mounted groove 18 the inner side for being internally located at location and installation bar 20 be provided with
With the corresponding length adjustment component 22 of sound panel 17, length adjustment component 22 includes electric pushrod 23 and the groove 24 that is slidably installed,
The groove 24 that is slidably installed is opened in a side surface of the inside away from sliding through hole 19 that groove 18 is mounted, one end of electric pushrod 23
The inner bottom surface for the groove 24 that is slidably installed is fixedly mounted on, the one end of electric pushrod 23 away from the groove 24 that is slidably installed is installed with folder
Gripping member 25, the inside of clamping piece 25 offer card slot 26 corresponding with location and installation bar 20, and location and installation bar 20 passes through card slot
26 grip with clamping piece 25.
The bottom of device case 1 is provided with support component 27, and support component 27 includes support column 28 and support baseboard 29, branch
The surface and 28 corresponding position of support column for supportting bottom plate 29 are installed with threaded mount 30, the top surface and dress of support column 28
The bottom surface for putting housing 1 is fixedly connected, and the bottom surface of support column 28 offers tapped through hole 31 corresponding with threaded mount 30, branch
Support bottom plate 29 is fixedly connected by threaded mount 30 and tapped through hole 31 with device case 1, and the both sides of support component 27 are set
Angled adjusting part 32, angular adjustment component 32 include drive motor 33 and installation housing 34, and the top surface of installation housing 34 is opened
Equipped with installation card slot 35, drive motor 33 is fixedly mounted on the inside of installation housing 34, drive motor 33 by installing card slot 35
The bottom surface side wall of shaft end through device case 1 reach the inside that groove 18 is mounted, 33 shaft of drive motor is positioned at spacing
The inside end of mounting groove 18 is fixedly connected with the position limiting slide block 21 of 20 bottom of location and installation bar, and the bottom surface of device case 1 offers
With the corresponding sliding slot 36 of 33 shaft of drive motor, the bottom of installation housing 34 offers rotary spacing groove 37, rotary spacing groove
37 inner rotation is connected with ball 38, and the bottom surface of ball 38 is contacted with the top surface of support baseboard 29.
A kind of application method of audio playing apparatus, mainly including the following aspects：
A. the broadcasting of audio
By the combination of playing device main body 3 and speaker body 4, the broadcasting of audio is carried out, and by installing
The inside of chamber 2 sets limit card board 6 and the location and installation part 5 of 4 side of speaker body to be connected and fixed, at the same by
Its corresponding position in outside opens up threaded hole, is consolidated again using bolt, the installation being convenient for people to, by loudspeaker
The outside of main body 4, which is set, is mounted the installation that block 8 carries out dust preventing component 9, avoids the entrance of dust, causes speaker body 4
Damage；
B. the orientation of sound
By opening up the slip peace that groove 18 is mounted and carries out sound panel 17 inside 1 corresponding two side of device case
Dress, and setting inside it by electric pushrod 23 and the length adjustment component 22 that groove 24 forms that is slidably installed, thus adjust every
The length of soundboard 17, is oriented sound processing, so that be convenient for people to be used, and by the bottom of device case 1
Portion sets the angular adjustment component 32 being made of drive motor 33 and installation housing 34, so as to sound panel 17 and device case 1
Between angle be adjusted so that the orientation range of sound is more extensive.
Provide a kind of audio playing apparatus and its application method, solve conventional audio playing device sound dispersion compared with
Greatly, the problem of and effect is bad；It can be widely applied to field of audio play.By setting dust preventing component 9 to avoid dust intrusion dress
The inside of housing 1 is put, influences the use of playing device main body 3 and speaker body 4；And slided by opening up limit installation groove 18
The dynamic mode that sound panel 17 is set so that sound panel 17 can carry out barrier adjustment in the both sides of speaker body 4 to sound, from
And the direction of sound is oriented, so that it is convenient for people to use, and set in the bottom of device case 1 by drive motor
33 drive sound panel 17 to carry out the rotation of angle, so as to improve the scope of application of sound panel 17, improve the guide range of sound.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of changes, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (5)
- A kind of 1. audio playing apparatus, it is characterised in that：Including device case (1), the inside of described device housing (1) offers Chamber (2) is installed, the intracavity bottom of the installation chamber (2) is installed with playing device main body (3), the installation chamber (2) be internally located above playing device main body (3) is provided with speaker body (4), and the speaker body (4) is by leading Line is fixedly connected with playing device main body (3), and location and installation part (5), the peace are provided with above the speaker body (4) Behave affectedly room (2) inner wall be installed with location and installation part (5) corresponding limit card board (6), the limit card board (6) Middle part is offered to be filled with speaker body (4) corresponding through hole (7), the speaker body (4) through through hole (7) with playing Put main body (3) connection, the location and installation part (5) be located at speaker body (4) outer fix and limit card board (6) relatively The position answered offers threaded hole, and is fixed between location and installation part (5) and limit card board (6) by bolt thread, described Side of the device case (1) away from playing device main body (3) is opening, and the inside that described device housing (1) is located at open-mouth is consolidated Dingan County is installed with dust preventing component (9) equipped with block (8), the inside that block (8) is mounted is mounted.
- A kind of 2. audio playing apparatus according to claim 1, it is characterised in that：The dust preventing component (9) includes installation Through hole (10), Air Filter installing frame (11) and Air Filter (12), the surface of the Air Filter installing frame (11) offer mounting groove (13), the Air Filter (12) is fixedly mounted on the inside of mounting groove (13), and the Air Filter installing frame (11) is slidably mounted on The inside of installation through-hole (10), the installation through-hole (10) are opened in the surface that block (8) is mounted, the installation through-hole (10) Inner surface and the outer surface of Air Filter installing frame (11) be separately installed with internal thread (14) and external screw thread (15), it is described dust-proof Net installing frame (11) is screwed by internal thread (14) and external screw thread (15) with block (8) is mounted, the dust preventing component (9) and speaker body (4) is corresponds structure, and quantity is at least two groups, and on the surface of device case (1) successively line Property arrangement.
- A kind of 3. audio playing apparatus according to claim 1, it is characterised in that：Described device housing (1) is corresponding Soundproofing member (16) is both provided with inside two side, the soundproofing member (16) includes sound panel (17) and groove is mounted (18), the groove (18) that is mounted offers sliding through hole (19), the sound insulation positioned at the side of installation chamber (2) open-mouth One end of plate (17) is slided by sliding through hole (19) is connected to the inside that groove (18) is mounted, the limit installation groove (18) Internal slide location and installation bar (20) is installed, the both ends of the location and installation bar (20) are installed with position limiting slide block (21), the sound panel (17) is fixedly connected positioned at the inside end that groove (18) is mounted with location and installation bar (20), the limit Being internally located on the inside of location and installation bar (20) for position mounting groove (18) is provided with and sound panel (17) corresponding length adjustment Component (22), the length adjustment component (22) include electric pushrod (23) and the groove that is slidably installed (24), the groove that is slidably installed (24) be opened in be mounted groove (18) a side surface of the inside away from sliding through hole (19), the one of the electric pushrod (23) End is fixedly mounted on the inner bottom surface of the groove that is slidably installed (24), the one end of the electric pushrod (23) away from groove (24) that are slidably installed Clamping piece (25) is installed with, the inside of the clamping piece (25) offers and location and installation bar (20) corresponding card slot (26), the location and installation bar (20) is gripped by card slot (26) and clamping piece (25).
- A kind of 4. audio playing apparatus according to claim 3, it is characterised in that：The bottom of described device housing (1) is set Support component (27) is equipped with, the support component (27) includes support column (28) and support baseboard (29), the support baseboard (29) surface is installed with threaded mount (30), the top of the support column (28) with support column (28) corresponding position Face is fixedly connected with the bottom surface of device case (1), and the bottom surface of the support column (28) is offered with threaded mount (30) relatively The tapped through hole (31) answered, the support baseboard (29) pass through threaded mount (30) and tapped through hole (31) and device case (1) it is fixedly connected, the both sides of the support component (27) are provided with angular adjustment component (32), the angular adjustment component (32) Including drive motor (33) and installation housing (34), the top surface of the installation housing (34) offers installation card slot (35), described Drive motor (33) is fixedly mounted on the inside of installation housing (34) by installing card slot (35), and the drive motor (33) turns The bottom surface side wall of shaft end through device case (1) reaches the inside that groove (18) is mounted, drive motor (33) the shaft position It is fixedly connected in the inside end that groove (18) is mounted with the position limiting slide block (21) of location and installation bar (20) bottom, described device shell The bottom surface of body (1) is offered opens with the corresponding sliding slot of drive motor (33) shaft (36), the bottom of the installation housing (34) Equipped with rotary spacing groove (37), the inner rotation of the rotary spacing groove (37) is connected with ball (38), the ball (38) Bottom surface is contacted with the top surface of support baseboard (29).
- 5. the method for a kind of audio playing apparatus according to claim 1-4, it is characterised in that mainly including following Aspect：A. the broadcasting of audioBy the combination of playing device main body (3) and speaker body (4), the broadcasting of audio is carried out, and by installing The inside of chamber (2) sets limit card board (6) and the location and installation part (5) of speaker body (4) side to be connected and fixed, together When by the outside of it corresponding position open up threaded hole, consolidated again using bolt, the installation being convenient for people to, passes through The installation that block (8) is mounted and carries out dust preventing component (9) is set in the outside of speaker body (4), the entrance of dust is avoided, makes Into the damage of speaker body (4)；B. the orientation of soundBy opening up the slip that groove (18) is mounted and carries out sound panel (17) inside device case (1) corresponding two side Installation, and the length adjustment component (22) being made of electric pushrod (23) and the groove that is slidably installed (24) is set inside it, from And the length of sound panel (17) is adjusted, processing is oriented to sound, so that be convenient for people to be used, and by device The bottom of housing (1) sets by drive motor (33) and installs the angular adjustment component (32) that housing (34) forms, thus to every Angle between soundboard (17) and device case (1) is adjusted so that the orientation range of sound is more extensive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308600.4A CN108040309B (en) | 2017-12-11 | 2017-12-11 | A kind of audio playing apparatus and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308600.4A CN108040309B (en) | 2017-12-11 | 2017-12-11 | A kind of audio playing apparatus and its application method |
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| Publication Number | Publication Date |
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| CN108040309A true CN108040309A (en) | 2018-05-15 |
| CN108040309B CN108040309B (en) | 2019-11-05 |
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| CN201711308600.4A Active CN108040309B (en) | 2017-12-11 | 2017-12-11 | A kind of audio playing apparatus and its application method |
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| CN109525911A (en) * | 2018-12-30 | 2019-03-26 | 安普德（天津）科技股份有限公司 | Human-computer interaction apparatus for processing audio |
| CN112929771A (en) * | 2021-02-05 | 2021-06-08 | 歌尔科技有限公司 | Sound cavity structure and sound box |
| CN113840191A (en) * | 2021-07-02 | 2021-12-24 | 江苏斑点狗网络科技有限公司 | Wisdom suggestion device with outside sound expands puts structure |
| CN116405811A (en) * | 2023-03-08 | 2023-07-07 | 琴伴智能科技(浙江)有限公司 | Audio playing device and application method thereof |
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| CN113840191A (en) * | 2021-07-02 | 2021-12-24 | 江苏斑点狗网络科技有限公司 | Wisdom suggestion device with outside sound expands puts structure |
| CN116405811A (en) * | 2023-03-08 | 2023-07-07 | 琴伴智能科技(浙江)有限公司 | Audio playing device and application method thereof |
| CN116405811B (en) * | 2023-03-08 | 2023-10-20 | 琴伴智能科技(浙江)有限公司 | Audio playing device and application method thereof |
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| CN108040309B (en) | 2019-11-05 |
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Effective date of registration: 20191012 Address after: No. 88, Qinsha section, Pinglang line, Xincang Town, Pinghu City, Jiaxing City, Zhejiang Province Applicant after: Pinghu Dake baby carriage Co.,Ltd. Address before: 312529 Zhejiang city of Shaoxing province Xinchang County habayashi Street No. 17 under the lotus island shore village Applicant before: Shi Yuanhuan |
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Denomination of invention: An audio playback device and its usage method Effective date of registration: 20230823 Granted publication date: 20191105 Pledgee: Bank of China Limited Pinghu Branch Pledgor: Pinghu Dake baby carriage Co.,Ltd. Registration number: Y2023980053442 |
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