CN220210608U - Vehicle-mounted directional sounding device - Google Patents
Vehicle-mounted directional sounding device Download PDFInfo
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- CN220210608U CN220210608U CN202321367660.4U CN202321367660U CN220210608U CN 220210608 U CN220210608 U CN 220210608U CN 202321367660 U CN202321367660 U CN 202321367660U CN 220210608 U CN220210608 U CN 220210608U
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- 239000011521 glass Substances 0.000 claims description 7
- 238000003491 array Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000758 substrate Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a vehicle-mounted directional sounding device which comprises a directional sounding component, at least one reflecting part and at least one sound zone, wherein the directional sounding component is installed in a vehicle, the reflecting part is positioned on an inner vehicle body, the sound zone is positioned in the vehicle, the directional sounding component comprises at least one directional loudspeaker, the sounding surface of each directional loudspeaker faces towards one reflecting part correspondingly, each directional loudspeaker corresponds to one sound zone, and sound waves emitted by each directional loudspeaker are emitted to the corresponding sound zone through the corresponding reflecting part. The utility model applies the directional loudspeaker in the vehicle, and utilizes the characteristic of the directional propagation of the sound wave in combination with the reflection in the vehicle to directionally propagate the sound wave to the corresponding sound zone, thereby improving the sound effect of the sound zone in the vehicle and improving the privacy of the sound zone.
Description
Technical Field
The utility model relates to the technical field of vehicle-mounted sound equipment, in particular to a vehicle-mounted directional sound production device.
Background
The vehicle-mounted sound system is a sound system installed in a vehicle and comprises software, media, sound sources, a power amplifier, speakers, a transmission mechanism and the like. Although the in-vehicle audio system is an auxiliary device for a vehicle, as the experience of the occupant is more and more considered, there is also a growing demand for the in-vehicle audio system. In addition, although the configuration of the in-car entertainment system is higher and higher at present, the sound effect processing is not good, and the requirement of users on the quality of the in-car entertainment system can not be met far.
At present, the implementation method of playing four sound areas (namely a main driving sound area, a secondary driving sound area and a rear left and right sound area) in a vehicle mainly depends on a mode that a loudspeaker is close to a human ear as much as possible (for example, a headrest loudspeaker), but the actual effect is not ideal.
Therefore, how to improve the sound effect of the sound zone in the vehicle and to improve the privacy of the sound zone is a problem to be solved.
The utility model comprises the following steps:
the utility model aims to provide a vehicle-mounted directional sounding device capable of improving the sound effect of a sound zone in a vehicle and improving the privacy of the sound zone.
In order to achieve the above object, the present utility model provides a vehicle-mounted directional sound generating device, which includes a directional sound generating assembly installed in a vehicle, at least one reflecting portion located on an inner vehicle body, and at least one sound zone located in the vehicle, wherein the directional sound generating assembly includes at least one directional speaker, a sound generating surface of each directional speaker faces to one reflecting portion, each directional speaker corresponds to one sound zone, and sound waves emitted by each directional speaker are emitted to the corresponding sound zone through the corresponding reflecting portion.
In a preferred embodiment, the directional sound emitting assembly is mounted at or near the middle of the vehicle cabin.
In a preferred embodiment, the direction of the directional sound emitting assembly is adjustable.
In a preferred embodiment, the directional sound emitting assembly is mounted on a center armrest box within the vehicle with the sound emitting surface facing toward a roof of the vehicle, and the reflective portion is formed on the roof of the vehicle.
In a preferred embodiment, the roof is a panoramic sunroof glass, and the reflecting portion is formed on the panoramic sunroof glass.
In a preferred embodiment, the directional sounding assembly includes a first directional speaker, a second directional speaker, a third directional speaker and a fourth directional speaker, where a sounding surface of the first directional speaker faces a roof reflecting portion corresponding to a main driving, a sounding surface of the second directional speaker faces a roof reflecting portion corresponding to a secondary driving, a sounding surface of the third directional speaker faces a roof reflecting portion corresponding to a left passenger position of a rear row, and a sounding surface of the fourth directional speaker faces a roof reflecting portion corresponding to a right passenger position of a rear row.
In a preferred embodiment, the angles of reflection angles formed by the sound waves emitted by the first directional speaker and the second directional speaker through the corresponding reflection parts are 40-80 degrees respectively.
In a preferred embodiment, the angles of the reflection angles formed by the sound waves emitted by the third directional speaker and the fourth directional speaker through the corresponding reflection parts are 80-140 degrees respectively.
In a preferred embodiment, all directional speakers of the directional sound assembly are piezoelectric ultrasonic transducer arrays, or are electrostatic membrane ultrasonic transducers, or are a combination of piezoelectric ultrasonic transducer arrays and electrostatic membrane ultrasonic transducers.
In a preferred embodiment, the electrostatic film ultrasonic transducer comprises a substrate layer, a vibrating diaphragm and an intermediate structure, wherein the vibrating diaphragm is attached to the frame of the substrate layer, and the intermediate structure is arranged between the vibrating diaphragm and the substrate layer and is used for providing an air gap required by vibration sounding of the vibrating diaphragm.
Compared with the prior art, the utility model has the following beneficial effects: the utility model applies the directional loudspeaker in the vehicle, and utilizes the characteristic of the directional propagation of the sound wave in combination with the reflection in the vehicle to directionally propagate the sound wave to the corresponding sound zone, thereby improving the sound effect of the sound zone in the vehicle and improving the privacy of the sound zone.
Description of the drawings:
FIG. 1 is a schematic diagram of the structure of the device of the present utility model;
fig. 2 is a schematic structural diagram of an electrostatic thin-film ultrasonic transducer according to an embodiment of the present utility model.
The reference numerals are:
1. the directional sound production assembly comprises a directional sound production assembly 11, a first directional loudspeaker 12, a second directional loudspeaker 13, a third directional loudspeaker 14, a fourth directional loudspeaker 15, a base material layer 16, a vibrating diaphragm 17, an intermediate structure 18, an air gap 2, a sound zone 3 and a central armrest box.
The specific embodiment is as follows:
the following detailed description of specific embodiments of the utility model is, but it should be understood that the utility model is not limited to specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations thereof such as "comprises" or "comprising", etc. will be understood to include the stated element or component without excluding other elements or components.
As shown in fig. 1, a vehicle-mounted directional sound generating device according to an embodiment of the present utility model includes a directional sound generating assembly 1 installed in a vehicle, at least one reflecting portion (not shown) located on an inner vehicle body, and at least one sound zone 2 located in the vehicle. The directional sound generating assembly 1 comprises at least one directional loudspeaker, the sound generating surface of each directional loudspeaker faces one reflecting part correspondingly, each directional loudspeaker corresponds to one sound zone 2, and sound waves emitted by each directional loudspeaker are reflected to the corresponding sound zone 2 through the corresponding reflecting part.
Specifically, the directional sound generating assembly 1 is preferably installed at or near the middle of the vehicle cabin. In this embodiment, the directional sounding assembly 1 is mounted on the center armrest box 3 in the vehicle, the sounding surface faces the roof, and the reflecting portion is correspondingly formed on the roof. Preferably, in implementation, the direction of the directional sounding assembly 1 is adjustable, and the position of the directional sounding assembly relative to the reflecting part can be adjusted according to the requirement, so as to achieve the effect of better directional transmission of sound waves to corresponding seats.
The directional sound generating assembly 1 specifically comprises a first directional loudspeaker 11, a second directional loudspeaker 12, a third directional loudspeaker 13 and a fourth directional loudspeaker 14, wherein a sound generating surface of the first directional loudspeaker 11 faces to a first top reflecting part corresponding to a main driving position, and first sound waves emitted by the first directional loudspeaker are reflected by the first top reflecting part and then emitted to the main driving position; the sound emitting surface of the second directional loudspeaker 12 faces to a second roof reflecting part corresponding to the secondary driving, and the second sound wave emitted by the second directional loudspeaker is reflected by the second roof reflecting part and then emitted to the secondary driving position; the sound producing surface of the third directional loudspeaker 13 faces to the third roof reflecting part corresponding to the rear left passenger position, and the third sound wave emitted by the third directional loudspeaker is reflected by the third roof reflecting part and then emitted to the rear left passenger position; the sound emitting surface of the fourth directional loudspeaker 14 faces to the fourth top reflecting part corresponding to the rear right passenger position, and the fourth sound wave emitted by the fourth directional loudspeaker is reflected by the fourth top reflecting part and then emitted to the rear right passenger position. Preferably, the angles of reflection angles formed by the sound waves emitted by the first directional speaker 11 and the second directional speaker 12 through the corresponding reflection parts are 40 ° to 80 °, and the angles of reflection angles formed by the sound waves emitted by the third directional speaker 13 and the fourth directional speaker 14 through the corresponding reflection parts are 80 ° to 140 °, so that the directionality of the sound waves is better under these reflection angles.
In practice, all directional speakers of the directional sounding assembly 1 may be piezoelectric ultrasonic transducer arrays, or electrostatic thin film ultrasonic transducers, or a combination of piezoelectric ultrasonic transducer arrays and electrostatic thin film ultrasonic transducers. The piezoelectric ultrasonic transducer array can be realized by adopting the existing mature piezoelectric ultrasonic transducers according to array arrangement, and details are not repeated here. As shown in fig. 2, the specific structure of the electrostatic film ultrasonic transducer includes a substrate layer 15, a diaphragm 16 and an intermediate structure 17, where the diaphragm 16 is attached to the frame of the substrate layer 15, and the intermediate structure 17 is disposed between the diaphragm 16 and the substrate layer 15 and is used to provide an air gap 18 required for vibration sounding of the diaphragm 16, and the diaphragm 16 vibrates under the action of a loaded voltage.
The roof of the vehicle cabin is preferably a panoramic sunroof glass, and in this case, the reflecting portion may be a member attached to the panoramic sunroof glass or may be directly formed of the panoramic sunroof glass. Of course, the reflecting portion of the present utility model is not limited to the roof, and may be another position in the vehicle, such as a front windshield.
The utility model has the advantages that the directional loudspeaker is applied to the vehicle, and the sound wave is directionally transmitted to the corresponding sound zone by utilizing the characteristic of the directional transmission of the sound wave and combining with the internal reflection of the vehicle, so that the sound effect of the sound zone in the vehicle can be improved, and the privacy of the sound zone can be improved.
The foregoing descriptions of specific exemplary embodiments of the present utility model are presented for purposes of illustration and description. It is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain the specific principles of the utility model and its practical application to thereby enable one skilled in the art to make and utilize the utility model in various exemplary embodiments and with various modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the claims and their equivalents.
Claims (10)
1. The vehicle-mounted directional sounding device is characterized by comprising a directional sounding component, at least one reflecting part and at least one sound zone, wherein the directional sounding component is installed in a vehicle, the reflecting part is positioned on an inner vehicle body, the sound zone is positioned in the vehicle, the directional sounding component comprises at least one directional loudspeaker, the sounding surface of each directional loudspeaker faces towards one reflecting part correspondingly, each directional loudspeaker corresponds to one sound zone, and sound waves emitted by each directional loudspeaker are emitted to the corresponding sound zone through the corresponding reflecting part.
2. The vehicle mounted directional sound generating apparatus of claim 1, wherein the directional sound generating assembly is mounted at or near a central portion of the vehicle interior.
3. The in-vehicle directional sound emitting apparatus of claim 1, wherein the direction of the directional sound emitting assembly is adjustable.
4. The vehicle-mounted directional sound generating apparatus according to any one of claims 1 to 3, wherein the directional sound generating assembly is mounted on a center console box in a vehicle with a sound generating surface facing a roof, and the reflecting portion is formed on the roof.
5. The vehicle-mounted directional sound generating apparatus according to claim 4, wherein the roof is a panoramic sunroof glass, and the reflecting portion is formed on the panoramic sunroof glass.
6. The vehicle-mounted directional sound generating device according to claim 1, wherein the directional sound generating assembly comprises a first directional speaker, a second directional speaker, a third directional speaker and a fourth directional speaker, wherein the sound generating surface of the first directional speaker faces the roof reflecting portion corresponding to the main driving, the sound generating surface of the second directional speaker faces the roof reflecting portion corresponding to the auxiliary driving, the sound generating surface of the third directional speaker faces the roof reflecting portion corresponding to the rear left passenger position, and the sound generating surface of the fourth directional speaker faces the roof reflecting portion corresponding to the rear right passenger position.
7. The vehicle-mounted directional sound generating apparatus according to claim 6, wherein the angles of reflection angles formed by the sound waves emitted by the first directional speaker and the second directional speaker through the corresponding reflection portions are 40 ° to 80 °.
8. The vehicle-mounted directional sound generating apparatus according to claim 7, wherein the angles of reflection angles formed by the sound waves emitted by the third directional speaker and the fourth directional speaker through the corresponding reflection portions are respectively 80 ° to 140 °.
9. The in-vehicle directional sound emitting apparatus of claim 1, wherein all directional speakers of the directional sound emitting assembly are piezoelectric ultrasonic transducer arrays, or are electrostatic membrane ultrasonic transducers, or are a combination of piezoelectric ultrasonic transducer arrays and electrostatic membrane ultrasonic transducers.
10. The vehicle-mounted directional sound generating device according to claim 9, wherein the electrostatic film ultrasonic transducer comprises a base material layer, a vibrating diaphragm and an intermediate structure, the vibrating diaphragm is attached to the frame of the base material layer, and the intermediate structure is arranged between the vibrating diaphragm and the base material layer and is used for providing an air gap required by vibration sound generation of the vibrating diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321367660.4U CN220210608U (en) | 2023-06-01 | 2023-06-01 | Vehicle-mounted directional sounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321367660.4U CN220210608U (en) | 2023-06-01 | 2023-06-01 | Vehicle-mounted directional sounding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220210608U true CN220210608U (en) | 2023-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321367660.4U Active CN220210608U (en) | 2023-06-01 | 2023-06-01 | Vehicle-mounted directional sounding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220210608U (en) |
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2023
- 2023-06-01 CN CN202321367660.4U patent/CN220210608U/en active Active
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