CN109862465A - Vehicle-mounted sound box and automobile - Google Patents
Vehicle-mounted sound box and automobile Download PDFInfo
- Publication number
- CN109862465A CN109862465A CN201811648847.5A CN201811648847A CN109862465A CN 109862465 A CN109862465 A CN 109862465A CN 201811648847 A CN201811648847 A CN 201811648847A CN 109862465 A CN109862465 A CN 109862465A
- Authority
- CN
- China
- Prior art keywords
- seat
- cover plate
- apron
- sound outlet
- sound
- 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.)
- Granted
Links
- 239000000178 monomer Substances 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 230000007547 defect Effects 0.000 abstract description 4
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 7
- 230000009467 reduction Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The present invention provides vehicle-mounted sound box and automobiles, wherein, vehicle-mounted sound box includes the first cover board, second cover board, third cover board and sounding monomer, second cover board and the first cover board are enclosed back cavity, third cover board and the first cover board are enclosed ante-chamber, sounding monomer is installed on the first cover board and is located in back cavity, first cover board be equipped with sounding monomer just with respect to and be connected to the sounding mouth of ante-chamber, the side of second cover board is equipped with the first side outlet sound mouth being connected to back cavity, the side of third cover board is equipped with second side outlet sound mouth being connected to ante-chamber, first side outlet sound mouth and second side outlet sound mouth are arranged in the opposite direction.Vehicle-mounted sound box sound provided by the invention being capable of bidirectional radiation, it avoids that acoustic short circuit occurs, and a vehicle-mounted sound box can cover the listening area of multiple positions, not only avoid the performance inconsistency bring defect due to interior each sounding monomer, and the setting quantity of vehicle sounding monomer can be reduced, reduce cost.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of vehicle-mounted sound boxes, in particular to a vehicle-mounted sound box and an automobile adopting the same.
[ background of the invention ]
At present, with the rapid development of automotive electronics technology, an excellent vehicle-mounted audio-visual entertainment system is an indispensable part for providing users with excellent driving experience. One of the key factors influencing the sound quality of the whole vehicle is the quality of the vehicle-mounted bass effect, and the difficulty always exists in the design of a vehicle-mounted sound system.
The existing design scheme of vehicle-mounted bass generally adopts a large-caliber circular moving-coil electroacoustic transducer, and because the transducer has a certain volume and is limited in installation, the transducer can only be installed inside a vehicle door, a trunk cover or a trunk. According to the traditional vehicle-mounted bass design scheme, the sounding unit is far away from a user, the bass is relatively lost in the process of spreading in the air, and in order to ensure that each position in the vehicle has enough sound pressure level, relatively large input power is often needed, so that the energy reduction and emission reduction are not facilitated; in addition, in order to ensure better uniformity of sound field in the vehicle, a plurality of bass units are generally required to be arranged at a plurality of positions to complement the sound field in the vehicle, so that the number of speakers in the vehicle is large, and the defect of sound quality in the vehicle is caused by mounting inconsistency.
Therefore, it is necessary to provide a vehicle-mounted sound box to solve the problem that the existing vehicle-mounted sound box needs a larger input power and is not beneficial to energy reduction and emission reduction.
[ summary of the invention ]
One of the purposes of the invention is to provide a vehicle-mounted sound box which has the advantages of energy conservation, emission reduction and cost reduction.
One of the purposes of the invention is realized by adopting the following technical scheme:
the utility model provides an on-vehicle audio amplifier, includes first apron, second apron, third apron and sound production monomer, the second apron with the third apron lid respectively close install in first apron both sides that carry on the back mutually, just the second apron with first apron encloses to close and forms the back chamber, the third apron with first apron encloses to close and forms the ante-chamber, the sound production monomer install in just be located on the first apron in the back chamber, be equipped with on the first apron with sound production monomer just relative and intercommunication the sound production mouth in ante-chamber, the lateral part of second apron be equipped with the first side sound outlet of back chamber intercommunication, the lateral part of third apron be equipped with the second side sound outlet of front chamber intercommunication, first side sound outlet with the opposite direction setting of second side sound outlet orientation.
As an improved mode, a first dustproof net is arranged at the sound outlet of the first side.
As an improvement, the first side sound outlet comprises a plurality of round openings which are arranged and distributed in a rectangular interval manner; or, the first side sound outlet is a rectangular opening.
As an improved mode, a second dustproof net is arranged at the second side sound outlet.
As an improvement, the second side sound outlet comprises a plurality of circular openings which are arranged and distributed in a rectangular interval manner; or the second side sound outlet is a rectangular opening.
The second object of the present invention is to provide an automobile, which includes a first seat, wherein the vehicle-mounted sound box is disposed at the bottom of the first seat, the first side sound outlet and the second side sound outlet are both disposed at the bottom of the first seat, the first side sound outlet is disposed toward the front of the first seat, and the second side sound outlet is disposed toward the rear of the first seat.
As a modified mode, the vehicle-mounted sound box is arranged at the outer side of the bottom of the first seat; or,
the first cover plate and the second cover plate are embedded in the first seat, and the third cover plate is exposed out of the first seat.
As a modification, the second cover plate is detachably attached to the outer side of the first seat bottom.
As an improved mode, the automobile further comprises a chassis arranged below the first seat, the third cover plate comprises a side plate which is convexly arranged on the periphery of the first cover plate and extends towards the chassis and a top plate which is connected with one end, far away from the first cover plate, of the side plate, and the first cover plate, the side plate and the top plate are enclosed to form the rear cavity; or,
the automobile further comprises a chassis arranged below the first seat, the third cover plate comprises side plates convexly arranged on the periphery of the first cover plate, one end, far away from the first cover plate, of each side plate is abutted to the chassis, and the first cover plate, the side plates and the chassis are enclosed to form the rear cavity.
As an improvement, the automobile further includes a second seat located behind the first seat, the first side sound outlet is disposed opposite to the second seat, and the second side sound outlet is disposed toward the second seat.
Compared with the prior art, the vehicle-mounted sound box comprises a first cover plate, a second cover plate, a third cover plate and a sound generating unit, wherein the second cover plate and the third cover plate are respectively covered and installed on two sides of the first cover plate, which are opposite to each other, the second cover plate and the first cover plate are enclosed to form a rear cavity, the third cover plate and the first cover plate are enclosed to form a front cavity, the sound generating unit is installed on the first cover plate and is located in the rear cavity, a first side sound outlet communicated with the rear cavity is formed in the side portion of the second cover plate, a second side sound outlet communicated with the front cavity is formed in the side portion of the third cover plate, and the first side sound outlet and the second side sound outlet are arranged in opposite directions. Therefore, when the vehicle-mounted sound box is arranged at the bottom of the automobile seat, on one hand, sound generated by the vehicle-mounted sound box can be radiated in two directions, and sound short circuit is avoided; on the other hand, one vehicle-mounted sound box can cover listening areas at a plurality of positions, so that the defect caused by the performance inconsistency of all sounding monomers in the vehicle is avoided, the number of the sounding monomers in the whole vehicle can be reduced, and the cost is reduced; in addition, because the sound production monomer is installed on first apron, sound production monomer and first seat are kept apart through back chamber or ante-chamber before, can effectively reduce the influence that the sound production monomer formed to first seat when vibrating, also reduce the influence that forms whole car.
[ description of the drawings ]
Fig. 1 is a schematic cross-sectional view of a first seat and a vehicle-mounted sound box according to a first embodiment of the present invention;
fig. 2 is an exploded schematic view of a vehicle-mounted sound box according to a first embodiment of the present invention;
fig. 3 is a schematic view illustrating an arrangement of a first seat and a second seat according to a first embodiment of the present invention;
fig. 4 is a schematic view illustrating a first seat and a car-mounted speaker provided in the second embodiment of the present invention;
fig. 5 is a schematic cross-sectional view of a first seat and a vehicle-mounted sound box according to a second embodiment of the present invention;
fig. 6 is a schematic diagram of the first seat, the car-mounted speaker, and the chassis according to the third embodiment of the present invention;
fig. 7 is a schematic diagram of the first seat, the car-mounted sound box, and the chassis according to the fourth embodiment of the present invention.
[ detailed description ] embodiments
The invention is further described with reference to the following figures and embodiments.
The first embodiment is as follows:
referring to fig. 1-2, a vehicle sound box 20 according to an embodiment of the present invention includes a first seat 10 and a vehicle sound box 20 disposed at a bottom of the first seat 10, the vehicle sound box 20 includes a first cover plate 21, a second cover plate 22, a third cover plate 23 and a sound-generating unit 24, the second cover plate 22 and the third cover plate 23 are respectively mounted on two opposite sides of the first cover plate 21 in a covering manner, the second cover plate 22 and the first cover plate 21 enclose a rear cavity 31, the third cover plate 23 and the first cover plate 21 enclose a front cavity 32, the sound-generating unit 24 is mounted on the first cover plate 21 and is located in the rear cavity 31, the first cover plate 21 is provided with a sound-generating port 211 facing the sound-generating unit 24 and communicating with the front cavity 32, a side portion of the second cover plate 22 is provided with a first side sound outlet 221 communicating with the rear cavity 31, a side portion of the third cover plate 23 is provided with a second side sound outlet 231 communicating with the front cavity 32, the first side sound outlet 221 is disposed toward a front of the first seat 10, the second side sound outlet 231 is disposed toward the rear of the first seat 20. In operation, the sound generated by the generating unit 24 enters the rear cavity 31 and the front cavity 32, respectively, the sound entering the rear cavity 31 is diffused toward the front of the first seat 10 through the first side sound outlet 221, and the sound entering the front cavity 32 is diffused toward the rear of the first seat 20 through the second side sound outlet 231, so as to cover the listening area in front of and behind the first seat 10.
In this configuration, the first side sound outlet 221 communicating with the rear chamber 31 is provided in the side portion of the second cover 22, the second side sound outlet 231 communicating with the front chamber 32 is provided in the side portion of the third cover 23, the first side sound outlet 221 is provided toward the front of the first seat 10, and the second side sound outlet 231 is provided toward the rear of the first seat 10. Thus, on one hand, the sound generated by the vehicle-mounted sound box 20 can be radiated in two directions, so that the sound short circuit is avoided; on the other hand, one vehicle-mounted sound box 20 can cover listening areas at a plurality of positions, so that the defect caused by the performance inconsistency of all the sound generating units in the vehicle is avoided, the number of the sound generating units 24 of the whole vehicle can be reduced, and the cost is reduced; in addition, because the sound generating unit 24 is installed on the first cover plate 21, the sound generating unit 24 and the first seat 10 are isolated by the rear cavity 31 or the front cavity 32, so that the influence on the first seat 10 when the sound generating unit 24 vibrates can be effectively reduced, namely, the influence on the whole vehicle can be reduced. It will be appreciated that if the sound generating unit 24 is disposed in contact with the first seat 10, the vibration generated when the sound generating unit 24 operates is transmitted to the first seat 10, and the comfort of the passenger seated in the first seat 10 is reduced.
Specifically, the second cover plate 22 includes a first side plate 222 protruding around the first cover plate 21 and a first top plate 223 connected to one side of the first side plate 222 away from the first cover plate 21, the first side plate 222 and the first top plate 223 enclose to form the rear cavity 31, and the first side sound outlet 221 is disposed on the first side plate 222; the third cover plate 23 includes a second side plate 232 protruding around the first cover plate 21 and a second top plate 233 connected to one side of the second side plate 232 far from the first cover plate 21, the second side plate 232 and the second top plate 233 enclose to form the front cavity 32, and the second side sound outlet 231 is disposed on the second side plate 232.
The automobile further includes a chassis 30 disposed below the first seat 10, and the second top plate 233 abuts against the chassis 30, or the second top plate 233 is disposed at a distance from the chassis 30.
As a modification of this embodiment, a first dust-proof net is disposed at the first side sound outlet 221. Through setting up first dust screen, can effectively block the dust rear chamber 31 in, avoid producing the influence to tone quality because the dust enters into rear chamber 31.
As a modification of this embodiment, the first side sound outlet 221 includes a plurality of circular openings arranged at intervals in a rectangular shape. It is understood that the first side sound outlet 221 is not limited to the above-mentioned manner of arranging a plurality of circular openings in a rectangular interval arrangement, for example, the first side sound outlet 221 may be arranged as a rectangular opening.
As an improved mode of this embodiment, second side sound outlet 231 department is equipped with the second dust screen, through setting up the second dust screen, can effectively block dust rear chamber 32 in, avoids producing the influence because the dust enters into rear chamber 32 in to tone quality.
As a modification of this embodiment, the second side sound outlet 231 includes a plurality of circular openings arranged at intervals in a rectangular shape. It is to be understood that the second side sound outlet 231 is not limited to the above-mentioned manner of arranging a plurality of circular openings in a rectangular interval arrangement, and the second side sound outlet 231 may be arranged as one rectangular opening.
As a modification of the present embodiment, the car-mounted sound box 20 is mounted on the outer side of the first seat 10. The first cover plate 21, the second cover plate 22, and the third cover plate 23 are all exposed outside the first seat 10, specifically, the second cover plate 22 is detachably connected to an outer side of a bottom of the first seat 10 to mount the car audio box 20 on the outer side of the first seat 10, for example, the second cover plate 22 is mounted on the outer side of the bottom of the first seat 10 by screws, or the second cover plate 22 is mounted on the outer side of the bottom of the first seat 10 by a snap connection.
Referring to fig. 3, as an improvement of the present embodiment, the automobile further includes a second seat 40 located at the rear side of the first seat 10, the first side sound outlet 221 is disposed opposite to the second seat 40, and the second side sound outlet 231 is disposed toward the second seat 40.
Example two:
referring to fig. 4-5, the automobile provided in this embodiment is different from the automobile provided in the first embodiment in the arrangement manner of the car-mounted speaker, which is specifically embodied as follows: in the present embodiment, the first cover plate 21 and the second cover plate 22 are embedded in the first seat 10, and the third cover plate 23 is exposed outside the first seat 10.
Specifically, the bottom of the first seat 10 is provided with a cavity 11, a first cover plate 21 and a second cover plate 22 of the car speaker are embedded in the cavity 11, and a third cover plate 23 is exposed out of the cavity 11. It is understood that when the second cover 22 is embedded in the cavity 11, the first seat 10 should be provided with a notch corresponding to the first side sound outlet 221 of the second cover 22, so that sound can flow out from the first side sound outlet 221. With this design, through establishing second apron 22 inlays in first seat 10, can further play the effect of hiding the on-vehicle audio amplifier, promote user's visual experience.
Example three:
referring to fig. 6, the automobile provided in this embodiment is different from the automobile provided in the first embodiment in that the vehicle-mounted sound box is arranged in a different manner, which is specifically embodied as follows: the third cover of the car audio box 50 only includes the second side plate 532, instead of the second top plate 232 as described in the first embodiment, one end of the second side plate 532 away from the first cover 41 is disposed against the chassis 30, and the first cover 51, the second side plate 532 and the chassis 30 enclose to form the front cavity 52.
Example four:
referring to fig. 7, the automobile provided in this embodiment is different from the automobile provided in the second embodiment in the arrangement manner of the car-mounted speaker, which is specifically embodied as follows: the third cover of the car audio box 60 only includes the second side plate 632, instead of the second top plate 232 as described in the first embodiment, one end of the second side plate 632 away from the first cover 61 is disposed against the chassis 50, and the first cover 61, the second side plate 632 and the chassis 30 enclose to form the front cavity 62.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides an on-vehicle audio amplifier, its characterized in that, includes first apron, second apron, third apron and sound production monomer, the second apron with the third apron lid respectively close install in the both sides that first apron carried on the back mutually, just the second apron with first apron encloses to close and forms the back chamber, the third apron with first apron encloses to close and forms the front chamber, the sound production monomer install in just be located on the first apron in the back chamber, be equipped with on the first apron with just communicate just relatively of sound production monomer the sound production mouth in front chamber, the lateral part of second apron be equipped with the first side sound outlet of back chamber intercommunication, the lateral part of third apron be equipped with the second side sound outlet of front chamber intercommunication, first side sound outlet with second side sound outlet orientation opposite direction sets up.
2. The vehicular sound box according to claim 1, characterized in that: and a first dustproof net is arranged at the sound outlet at the first side.
3. The vehicular sound box according to claim 2, characterized in that: the first side sound outlet comprises a plurality of round openings which are arranged and distributed in a rectangular interval manner; or, the first side sound outlet is a rectangular opening.
4. The vehicle-mounted sound box according to any one of claims 1 to 3, characterized in that: and a second dustproof net is arranged at the second side sound outlet.
5. The vehicular sound box according to claim 4, wherein: the second side sound outlet comprises a plurality of round openings which are arranged and distributed in a rectangular interval manner; or the second side sound outlet is a rectangular opening.
6. An automobile, comprising a first seat, wherein the bottom of the first seat is provided with the vehicular sound box as claimed in any one of claims 1 to 5, the first side sound outlet and the second side sound outlet are both located at the bottom of the first seat, and the first side sound outlet is disposed toward the front of the first seat, and the second side sound outlet is disposed toward the rear of the first seat.
7. The automobile of claim 6, wherein: the vehicle-mounted sound box is arranged on the outer side of the bottom of the first seat; or the first cover plate and the second cover plate are embedded in the first seat, and the third cover plate is exposed out of the first seat.
8. The automobile of claim 7, wherein: the second cover plate is detachably connected with the outer side of the first seat bottom.
9. The automobile of claim 7, wherein: the automobile further comprises a chassis arranged below the first seat, the third cover plate comprises side plates which are convexly arranged on the periphery of the first cover plate and extend towards the chassis and a top plate which is connected with one end of the side plates, which is far away from the first cover plate, and the first cover plate, the side plates and the top plate are enclosed to form the rear cavity; or,
the automobile further comprises a chassis arranged below the first seat, the third cover plate comprises side plates convexly arranged on the periphery of the first cover plate, one end, far away from the first cover plate, of each side plate is abutted to the chassis, and the first cover plate, the side plates and the chassis are enclosed to form the rear cavity.
10. The automobile according to any one of claims 6 to 9, characterized in that: the automobile further comprises a second seat located on the rear side of the first seat, the first side sound outlet is back to the second seat, and the second side sound outlet faces the second seat.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811648847.5A CN109862465B (en) | 2018-12-30 | 2018-12-30 | Vehicle-mounted sound box and automobile |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811648847.5A CN109862465B (en) | 2018-12-30 | 2018-12-30 | Vehicle-mounted sound box and automobile |
Publications (2)
Publication Number | Publication Date |
---|---|
CN109862465A true CN109862465A (en) | 2019-06-07 |
CN109862465B CN109862465B (en) | 2021-01-12 |
Family
ID=66893507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201811648847.5A Active CN109862465B (en) | 2018-12-30 | 2018-12-30 | Vehicle-mounted sound box and automobile |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN109862465B (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10291443A (en) * | 1997-04-21 | 1998-11-04 | Nissan Motor Co Ltd | Speaker structure of seat for vehicle |
US6868937B2 (en) * | 2002-03-26 | 2005-03-22 | Alpine Electronics, Inc | Sub-woofer system for use in vehicle |
CN1822707A (en) * | 2005-02-15 | 2006-08-23 | 先锋株式会社 | Low-frequency sound reproducing speaker apparatus |
JP2007251895A (en) * | 2006-03-20 | 2007-09-27 | Clarion Co Ltd | Acoustic device incorporated in vehicle seat |
JP2010228611A (en) * | 2009-03-27 | 2010-10-14 | Toyota Boshoku Corp | Speaker structure for vehicular seat |
US20150172799A1 (en) * | 2013-12-13 | 2015-06-18 | Nissan North America, Inc. | Vehicle audio structure |
CN106394422A (en) * | 2015-07-30 | 2017-02-15 | 本田技研工业株式会社 | Vehicle seat |
-
2018
- 2018-12-30 CN CN201811648847.5A patent/CN109862465B/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10291443A (en) * | 1997-04-21 | 1998-11-04 | Nissan Motor Co Ltd | Speaker structure of seat for vehicle |
US6868937B2 (en) * | 2002-03-26 | 2005-03-22 | Alpine Electronics, Inc | Sub-woofer system for use in vehicle |
CN1822707A (en) * | 2005-02-15 | 2006-08-23 | 先锋株式会社 | Low-frequency sound reproducing speaker apparatus |
JP2007251895A (en) * | 2006-03-20 | 2007-09-27 | Clarion Co Ltd | Acoustic device incorporated in vehicle seat |
JP2010228611A (en) * | 2009-03-27 | 2010-10-14 | Toyota Boshoku Corp | Speaker structure for vehicular seat |
US20150172799A1 (en) * | 2013-12-13 | 2015-06-18 | Nissan North America, Inc. | Vehicle audio structure |
US9131303B2 (en) * | 2013-12-13 | 2015-09-08 | Nissan North America, Inc. | Vehicle audio structure |
CN106394422A (en) * | 2015-07-30 | 2017-02-15 | 本田技研工业株式会社 | Vehicle seat |
Non-Patent Citations (1)
Title |
---|
沈勇: "《扬声器系统的理论与应用》", 31 December 2011 * |
Also Published As
Publication number | Publication date |
---|---|
CN109862465B (en) | 2021-01-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100517369B1 (en) | Mounting structure of speaker for vehicle | |
EP0411786B1 (en) | Vehicular sound reproducing | |
US5287412A (en) | Arrangement for reproducing bass tones in a vehicle | |
CN109660912B (en) | Vehicle-mounted sound box and automobile | |
CN110267174B (en) | Independent sound field system in car based on miniature speaker | |
CN109862465B (en) | Vehicle-mounted sound box and automobile | |
US10477290B2 (en) | Loudspeaker device and movable-body device equipped with the same | |
CN206004897U (en) | A kind of mounting structure of vehicle audio | |
JP3742963B2 (en) | Speaker device and sound reproduction method | |
WO2020140167A1 (en) | Vehicle-mounted sound box and automobile | |
CN212125003U (en) | Automobile | |
CN219577242U (en) | Linear array combined sound box | |
CN219236774U (en) | Center console assembly and vehicle | |
CN219115359U (en) | Vehicle-mounted sound system and vehicle | |
CN219728048U (en) | Seat and vehicle with same | |
CN214396427U (en) | Center console assembly with loudspeaking structure | |
JPS6225033Y2 (en) | ||
CN212473313U (en) | Vehicle audio system and vehicle | |
WO2020140166A1 (en) | Vehicle-mounted speaker and vehicle | |
WO2020119587A1 (en) | Automobile sound system based on automobile door subwoofer | |
CN116506755A (en) | Vehicle-mounted sound box and vehicle | |
JP2555154Y2 (en) | In-vehicle speaker system | |
JP3622384B2 (en) | In-vehicle speaker device | |
JP2022186385A (en) | On-vehicle subwoofer unit | |
JPS6322781Y2 (en) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |