CN117485258A - Vehicle-mounted loudspeaker device with changeable sound cavity - Google Patents

Vehicle-mounted loudspeaker device with changeable sound cavity Download PDF

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Publication number
CN117485258A
CN117485258A CN202311583721.5A CN202311583721A CN117485258A CN 117485258 A CN117485258 A CN 117485258A CN 202311583721 A CN202311583721 A CN 202311583721A CN 117485258 A CN117485258 A CN 117485258A
Authority
CN
China
Prior art keywords
cover body
vehicle
main shell
turnover
rotating shaft
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.)
Pending
Application number
CN202311583721.5A
Other languages
Chinese (zh)
Inventor
高磊
李国栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Xuanda Electronics Co ltd
Original Assignee
Shenzhen Xuanda Electronics Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenzhen Xuanda Electronics Co ltd filed Critical Shenzhen Xuanda Electronics Co ltd
Priority to CN202311583721.5A priority Critical patent/CN117485258A/en
Publication of CN117485258A publication Critical patent/CN117485258A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0217—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for 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
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
    • B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
    • B60R2011/0005—Dashboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/008—Adjustable or movable supports
    • B60R2011/0085—Adjustable or movable supports with adjustment by rotation in their operational position
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
    • H04R2201/025—Transducer mountings or cabinet supports enabling variable orientation of transducer of cabinet

Abstract

The invention is suitable for the field of loudspeaker devices, and provides a vehicle-mounted loudspeaker device with a variable sound cavity, which comprises a loudspeaker unit and a main shell part which can be fixedly connected to a mounting position of a vehicle instrument desk, wherein the main shell part is connected with a turnover cover body which can be turned over, the turnover cover body is provided with a loudspeaker mounting hole site, the turnover cover body is connected with an elastic piece, the turnover cover body is provided with a first end and a second end which are opposite, the first end is connected with the main shell part through a rotating shaft, and the second end is connected with a turnover driving mechanism for driving the turnover cover body to turn over; the turnover driving mechanism comprises a motor and a screw rod, the motor is fixed on the main shell part, the screw rod is in threaded connection with the turnover cover body, and one end of the screw rod is connected with a rotating shaft of the motor through a universal coupling. According to the vehicle-mounted loudspeaker device with the changeable sound cavity, the sound cavity of the vehicle-mounted loudspeaker device can be adjusted to meet different application scenes, the occupied space is small, and the user experience is good.

Description

Vehicle-mounted loudspeaker device with changeable sound cavity
Technical Field
The invention belongs to the field of loudspeaker devices, and particularly relates to a vehicle-mounted loudspeaker device with a variable sound cavity.
Background
Current vehicle horns generally have the horn directly secured to the bracket. The sound cavity design of the horn is limited by the size and layout of other components within the vehicle. The current vehicle-mounted loudspeaker cannot give consideration to the sound cavity and the size, and the user experience is poor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides the vehicle-mounted loudspeaker device with the changeable sound cavity, which has good use effect and good user experience.
The technical scheme of the invention is as follows: the vehicle-mounted loudspeaker device with the changeable sound cavity comprises a loudspeaker unit and a main shell part which can be fixedly connected to a mounting position of a vehicle instrument desk, wherein the main shell part is connected with a turnover cover body which can be turned over, the turnover cover body is provided with a loudspeaker mounting hole site, and the loudspeaker unit is fixedly connected to the loudspeaker mounting hole site; the turnover cover body is provided with a first end and a second end which are opposite, the first end is connected with the main shell part through a rotating shaft, and the second end is connected with a turnover driving mechanism for driving the turnover cover body to turn over; the second end of the turnover cover body downwards integrally extends to form a first arc-shaped wall, and two sides of the turnover cover body downwards integrally form turnover cover side walls connected with the first arc-shaped wall;
the top end of the main shell part is opened, and the front side of the main shell part is close to a rotating shaft installation hole site arranged at the opening; the rear side of the main shell part is provided with a second arc-shaped wall, two sides of the main shell part are provided with main shell side walls, the inner side of the second arc-shaped wall is kept in contact with the outer side of the first arc-shaped wall in the overturning process of the overturning cover body, and the inner side of the main shell side walls is kept in contact with the outer side of the overturning cover side walls;
the turnover cover body is connected with an elastic piece, the turnover driving mechanism comprises a motor and a screw rod, the motor is fixed on the main shell component, the screw rod is in threaded connection with the turnover cover body, and one end of the screw rod is connected with a rotating shaft of the motor through a universal coupling.
Specifically, the elastic piece is a spring in a pressed state.
Specifically, the side wall of the flip cover is provided with a phase inversion hole, the phase inversion hole is arranged close to the first arc-shaped wall, and a phase inversion tube is arranged in the phase inversion hole.
Specifically, a turnover guide limiting structure is arranged between the turnover cover body and the main shell component.
Specifically, the upset direction limit structure including set up in the inboard arc track groove of main casing lateral wall with integrative set up in the bellying in the upset lid lateral wall outside, the bellying stretches into in the arc track groove.
Specifically, the outside of main casing lateral wall is provided with first strengthening rib, the inboard of flip cover lateral wall is provided with the second strengthening rib.
Specifically, the rotating shaft is sleeved with a rubber sleeve, and the rubber sleeve is embedded in the rotating shaft installation hole site.
Specifically, the both ends of pivot wear in pivot mounting hole site, just the pivot wear in the both ends threaded connection of pivot mounting hole site has the nut that is used for compressing tightly the gum cover.
Specifically, the horn unit is a full-frequency horn.
In particular, the second arc-shaped wall is provided with a rubber strip.
The vehicle-mounted loudspeaker device with the changeable sound cavity can be adjusted to meet different application scenes, and is small in occupied space, particularly small in occupied space in the thickness direction. By means of the elastic element, the relative vibration between the turnover cover body and the main shell component can be eliminated. The turnover driving mechanism adopts a screw rod transmission mode, utilizes the self-locking characteristic of the turnover driving mechanism, can only drive the turnover cover body through the screw rod, can not drive the screw rod, has stable and reliable turnover and small transmission noise, and has strong technological sense and good user experience due to the adoption of the electric turnover driving mechanism.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a vehicle-mounted speaker device with a variable sound cavity according to an embodiment of the present invention;
fig. 2 is another schematic perspective view of a vehicle-mounted speaker device with a variable sound cavity according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a vehicle horn device with a variable acoustic cavity (when the flip cover is flipped up about 45 degrees) according to an embodiment of the present invention;
fig. 4 is an exploded perspective view of a vehicle-mounted speaker device with a variable sound cavity (when the flip cover is flipped up about 45 degrees) according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of a vehicle-mounted speaker device with a variable sound cavity (when a flip cover is flipped up about 45 degrees) according to an embodiment of the present invention;
fig. 6 is a schematic perspective view of a flip cover in a vehicle-mounted speaker device with a variable sound cavity according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
It should be noted that, in the embodiments of the present invention, terms such as left, right, up, and down are merely relative concepts or references to normal use states of the product, and should not be construed as limiting.
As shown in fig. 1 to 6, the vehicle horn device with a variable sound cavity according to the embodiment of the present invention includes a horn unit 300 and a main housing part 100 that can be fixedly connected to a mounting position of an instrument desk of a vehicle, where the horn unit 300 can be a full-frequency horn. The main housing part 100 is connected with a turnover cover body 200 which can be turned over, the turnover cover body 200 is provided with a horn installation hole site, and the horn unit 300 is fixedly connected with the horn installation hole site; the flip cover 200 can be turned to a flat state, at this time, the front surface of the speaker unit 300 faces to the upper direction (as shown in fig. 1), the flip cover 200 can be flush with or slightly lower than the surface of the vehicle instrument desk so as to be convenient for storage, and the surface of the instrument desk does not occupy space, i.e. the exterior space is not occupied when the speaker unit 300 is not used, and the flip cover 200 can also be turned to an angle facing to the passenger compartment (as shown in fig. 3 and 4), so that the front surface of the speaker unit 300 faces to the passenger compartment, and the hearing effect is good. The flip cover 200 has a first end and a second end opposite to each other, the first end is relatively close to the passenger compartment, the second end is relatively close to the front windshield after the vehicle horn device is mounted in place, the first end is connected to the main housing part 100 through a rotation shaft 410, and the rotation shaft 410 is disposed along the transverse direction (left-right direction) of the vehicle. The second end is connected with a turnover driving mechanism 500 for driving the turnover cover body 200 to turn over, and the turnover driving mechanism 500 can be an electric mechanism; the second end of the flip cover 200 integrally extends downwards to form a first arc wall 210, two sides of the flip cover 200 integrally form a flip cover side wall 220 connected to the first arc wall 210 downwards, and a center (axis) of the first arc wall 210 is collinear with an axis of the rotating shaft 410. The two flip cover sidewalls 220 may be generally fan-shaped and disposed in parallel and spaced apart relation, and the horn mounting holes may be disposed in the top cover of the flip cover 200, which may be planar or match the surface shape of the instrument desk. The top end of the main housing part 100 is opened, and a rotating shaft installation hole site 101 is arranged at the front side of the main housing part 100 near the opening; the rear side of the main housing part 100 is provided with a second arc-shaped wall 110, and the center (axis) of the circle corresponding to the second arc-shaped wall 110 is collinear with the axis of the spindle mounting hole 101. The two sides of the main housing component 100 are main housing side walls 120, and the two main housing side walls 120 are arranged in parallel. In the overturning travel of the overturning cover 200, the inner side of the second arc wall 110 and the outer side of the first arc wall 210 can be kept in contact, and the inner side of the main housing side wall 120 and the outer side of the overturning cover side wall 220 can be kept in contact, so that the sound cavity of the vehicle-mounted speaker device can be adjusted to meet different application scenes, and the occupied space is small, in particular, the occupied space in the thickness direction is small.
The flip cover 200 is connected with the elastic member 180 to suppress the relative vibration between the flip cover 200 and the main housing part 100, and particularly in a use scene with a large volume, the elastic member 180 is provided to eliminate the relative vibration between the flip cover 200 and the main housing part 100. The turnover driving mechanism 500 comprises a motor 510 and a screw rod 520, the motor 510 is fixed on the main housing part 100, the screw rod 520 is in threaded connection with the turnover cover body 200, one end of the screw rod 520 is connected with a rotating shaft (a motor shaft) of the motor 510 through a universal coupling 530, the angle between the screw rod 520 and the rotating shaft (the motor shaft) can be adjusted in a self-adapting mode through the universal coupling 530, the screw rod 520 is adopted to drive the turnover cover body 200 only through the screw rod 520 by utilizing the characteristic of self-locking, the screw rod 520 cannot be driven by the turnover cover body 200, the turnover of the turnover cover body 200 is stable and reliable, the transmission noise is small, the turnover cover body 200 adopts the electric turnover driving mechanism 500, the technological sense is strong, and the user experience is good.
Specifically, the elastic member 180 may be a spring in a compressed state, and two ends of the spring respectively elastically abut against the inner side of the flip cover 200 and the bottom of the main housing part 100. The inner side of the flip cover 200 and the bottom of the main housing part 100 may be provided with an open cylinder, two ends of the spring are respectively sleeved or embedded in the cylinder, and the spring may be provided with two or more groups, so that the shock-proof effect is good. Alternatively, the elastic member 180 may be an air bag attached to the inner side of the flip cover 200 and the bottom of the main housing member 100, and may have a good vibration-proof effect. The airbag may be attached to the inside of the flip cover 200 and the bottom of the main housing part 100 by means of gluing.
Specifically, the side wall 220 of the flip cover is provided with a phase inversion hole 221, the phase inversion hole 221 is close to the first arc wall 210, the phase inversion hole 221 may be close to the top of the flip cover 200, a phase inversion tube is disposed in the phase inversion hole 221, the phase inversion tube may be connected to the phase inversion hole 221 by ultrasonic welding, etc., when the flip cover 200 is folded in the main housing part 100, the phase inversion hole 221 is blocked by the side wall 120 of the main housing, and when the flip cover 200 is turned upwards, the phase inversion hole 221 may be gradually conducted, so as to be suitable for different situations.
Specifically, a turnover guiding and limiting structure is disposed between the turnover cover 200 and the main housing component 100, and the turnover guiding and limiting structure can enable the turnover cover 200 to stably and reliably turn over relative to the main housing component 100.
Specifically, the turning guiding and limiting structure includes an arc-shaped track groove 222 disposed on the outer side of the side wall 220 of the turning cover and a protruding portion integrally disposed on the inner side of the side wall 120 of the main casing, and the protruding portion extends into the arc-shaped track groove 222. The center of the arc-shaped track groove 222 is collinear with the axis of the shaft mounting hole 101.
Specifically, the bellying can be cylindric, and the outside of bellying can be overlapped there is the silica gel cover, and the silica gel cover can overlap in the outside and the top of bellying, and the silica gel cover can with arc track adaptation to avoid the noise that factors such as striking, friction, resonance arouse. The root of bellying can be provided with the ring channel, and the silica gel cover can utilize the elasticity cover to overlap in the bellying and block in the ring channel through interior protruding muscle, and its convenient assembling just can prevent effectively that the silica gel cover from taking off.
Specifically, the outer side of the main housing sidewall 120 is provided with a first reinforcing rib, and the inner side of the flip cover sidewall 220 is provided with a second reinforcing rib, so that the structural stability is good. In a specific application, the main housing sidewall 120 may be integrally formed with an annular flange 140, and the annular flange 140 may be provided with a plurality of mounting holes 141, and the main housing component 100 may be locked to the mounting position of the instrument desk by screws.
Specifically, the mounting through hole 141 may be embedded with a buffer rubber ring, through which a screw passes.
Specifically, the shaft 410 is sleeved with a rubber sleeve, and the rubber sleeve is embedded in the shaft mounting hole 101, that is, the shaft 410 is separated from the shaft mounting hole 101 by the rubber sleeve, and the rubber sleeve may be a rubber sleeve. One end of the gum cover is provided with a convex edge which is attached to the outer side of the side wall 120 of the main shell.
Specifically, the two ends of the rotating shaft 410 penetrate through the rotating shaft mounting hole site 101, and the rotating shaft 410 penetrates through the two ends of the rotating shaft mounting hole site 101 and is in threaded connection with nuts used for pressing the rubber sleeve, the nuts can press the protruding edge, the rubber sleeve is not easy to loose, and the rubber sleeve can be effectively prevented.
Specifically, the second arc wall 110 is provided with a rubber strip, and the rubber strip is sandwiched between the second arc wall 110 and the first arc wall 210, which is beneficial to reducing vibration and preventing the air flow from being discharged due to poor air tightness between the second arc wall 110 and the first arc wall 210.
In particular, the main housing sidewall 120 may be provided with a second rubber strip interposed between the main housing sidewall 120 and the flip cover sidewall 220, which may be advantageous in reducing vibration, preventing poor airtight between the main housing sidewall 120 and the flip cover sidewall 220 from causing air flow to be discharged.
In a specific application, the flip cover 200 may be connected to a mesh cover member covering the outer side of the speaker unit 300.
In a specific application, the edge of the flip cover 200 or the edge of the horn unit 300 may be provided with an atmosphere light bar. In a specific application, an atmosphere lamp strip can be arranged at the edge of the mesh enclosure part.
In a specific application, the front surface of the main housing component 100 is provided with a wire holder 190, and cables of the speaker unit 300 and the motor 510 can be connected to the wire holder 190 from the inside of the main housing component 100, and the vehicle system can be connected to the wire holder 190 through a plug connector.
In a specific application, two adjacent assembly windows 109 with the same size and shape are arranged at the bottom of the main housing part 100, two bottom plates 170 for sealing the assembly windows 109 are fixed at the bottom of the main housing part 100 through screws, and a glue gasket can be arranged between the bottom plates 170 and the bottom of the main housing part 100. The motor 510 may be fixed to one of the base plates 170 by a bracket, and the other base plate 170 may be independently detachable for assembling the motor 510, the screw 520, and the like. The bottom of the main housing part 100 may be provided with a plurality of rubber mounts 160 to further secure the cushioning effect.
Specifically, the bottom of the flip cover 200 is opened, and a connection bar 250 is integrally formed, and the connection bar 250 is embedded with a plastic nut 251 for the screw 520 to be screwed.
Specifically, the motor 510 is connected with a control module, so that the flip cover 200 can be rotated to a set angle when the host plays audio. The rotation of the flip cover 200 may also be controlled by a knob, key, etc.
According to the vehicle-mounted loudspeaker device with the changeable sound cavity, the sound cavity of the vehicle-mounted loudspeaker device can be adjusted to meet different application scenes, and the occupied space is small, particularly the occupied space in the thickness direction is small. By providing the elastic member 180, a relative shock between the flip cover 200 and the main housing part 100 can be eliminated. The turnover driving mechanism 500 adopts a screw rod 520 transmission mode, and utilizes the characteristic of self-locking of the turnover driving mechanism, the turnover cover body 200 can only be driven by the screw rod 520, the screw rod 520 can not be driven by the turnover cover body 200, the turnover of the turnover cover body 200 is stable and reliable, the transmission noise is small, and the turnover cover body 200 adopts an electric turnover driving mechanism 500, so that the technology is strong, and the user experience is good.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.

Claims (10)

1. The vehicle-mounted loudspeaker device with the changeable sound cavity is characterized by comprising a loudspeaker unit and a main shell part which can be fixedly connected to a mounting position of a vehicle instrument desk, wherein the main shell part is connected with a turnover cover body which can be turned over, the turnover cover body is provided with a loudspeaker mounting hole site, and the loudspeaker unit is fixedly connected to the loudspeaker mounting hole site; the turnover cover body is provided with a first end and a second end which are opposite, the first end is connected with the main shell part through a rotating shaft, and the second end is connected with a turnover driving mechanism for driving the turnover cover body to turn over; the second end of the turnover cover body downwards integrally extends to form a first arc-shaped wall, and two sides of the turnover cover body downwards integrally form turnover cover side walls connected with the first arc-shaped wall;
the top end of the main shell part is opened, and the front side of the main shell part is close to a rotating shaft installation hole site arranged at the opening; the rear side of the main shell part is provided with a second arc-shaped wall, two sides of the main shell part are provided with main shell side walls, the inner side of the second arc-shaped wall is kept in contact with the outer side of the first arc-shaped wall in the overturning process of the overturning cover body, and the inner side of the main shell side walls is kept in contact with the outer side of the overturning cover side walls;
the turnover cover body is connected with an elastic piece, the turnover driving mechanism comprises a motor and a screw rod, the motor is fixed on the main shell component, the screw rod is in threaded connection with the turnover cover body, and one end of the screw rod is connected with a rotating shaft of the motor through a universal coupling.
2. The vehicle horn device of claim 1, wherein the elastic member is a spring in a compressed state.
3. A variable acoustic cavity vehicular horn apparatus according to claim 1, wherein the flip cover side wall is provided with a phase inversion hole, the phase inversion hole is provided close to the first arc-shaped wall, and a phase inversion pipe is provided in the phase inversion hole.
4. The vehicle horn device of claim 1, wherein a flip guide limit structure is provided between the flip cover and the main housing member.
5. The vehicle-mounted horn device with a changeable sound cavity as claimed in claim 4, wherein the turning guide limiting structure comprises an arc-shaped track groove arranged on the inner side of the side wall of the main shell and a protruding part integrally arranged on the outer side of the side wall of the turning cover, and the protruding part extends into the arc-shaped track groove.
6. The vehicle-mounted horn device with a changeable sound cavity as claimed in claim 1, wherein the outer side of the side wall of the main housing is provided with a first reinforcing rib, and the inner side of the side wall of the flip cover is provided with a second reinforcing rib.
7. The vehicle-mounted loudspeaker device with a changeable sound cavity as claimed in claim 1, wherein the rotating shaft is sleeved with a rubber sleeve, and the rubber sleeve is embedded in the installation hole position of the rotating shaft.
8. The vehicle-mounted loudspeaker device with a changeable sound cavity as claimed in claim 7, wherein two ends of the rotating shaft penetrate through the rotating shaft mounting hole, and two ends of the rotating shaft penetrating through the rotating shaft mounting hole are in threaded connection with nuts for pressing the rubber sleeve.
9. The vehicle horn device of claim 1, wherein the horn unit is a full frequency horn.
10. A variable acoustic cavity vehicular horn device as in claim 1, wherein said second arcuate wall is provided with a rubber strip.
CN202311583721.5A 2023-11-24 2023-11-24 Vehicle-mounted loudspeaker device with changeable sound cavity Pending CN117485258A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311583721.5A CN117485258A (en) 2023-11-24 2023-11-24 Vehicle-mounted loudspeaker device with changeable sound cavity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311583721.5A CN117485258A (en) 2023-11-24 2023-11-24 Vehicle-mounted loudspeaker device with changeable sound cavity

Publications (1)

Publication Number Publication Date
CN117485258A true CN117485258A (en) 2024-02-02

Family

ID=89682831

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311583721.5A Pending CN117485258A (en) 2023-11-24 2023-11-24 Vehicle-mounted loudspeaker device with changeable sound cavity

Country Status (1)

Country Link
CN (1) CN117485258A (en)

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