Sound production apparatus and vehicle

Abstract

The present invention relates to the technical field of sound production devices, and provides a sound production apparatus and a vehicle. The sound production apparatus comprises a vibration member, connecting members, an adjusting member, and at least two structural member; the vibration member is configured to generate vibration; the at least two structural members are provided on different sides of the vibration member, and the structural members are configured to produce sound along with the vibration; each structural member is connected to the vibration member by means of at least one connecting member, the connecting member has a flexible state and a rigid state, and when the connecting member is switched to the rigid state, the vibration is transmitted to the corresponding structural member; and the adjusting member is connected to each connecting member and is configured to adjust the state of the connecting member. The sound production apparatus of the present application is used for sound production inside or outside the vehicle; and the sound production apparatus and the vehicle of the present invention have the advantages of rich functionality, wide use scenarios, and simple and compact structure.

Description

Sound-generating device and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure is based on the Chinese patent application with application number 202323209787.6, application date November 27, 2023, and application name “A sound-generating structure and vehicle”, and the Chinese patent application with application number 202311816716.4, application date December 26, 2023, and application name “A sound-generating device and vehicle”, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application by introduction. Technical Field

[0003] The present disclosure relates to the technical field of sound-generating equipment, and in particular to a sound-generating device and a vehicle. Background Art

[0004] Sound-emitting devices are usually used in various interactive scenarios, such as interaction between people inside and outside a vehicle, but the sound-emitting devices in related technologies are difficult to meet the usage requirements of multiple scenarios.

[0005] Summary of the Invention

[0006] The embodiments of the present disclosure provide a sound-emitting device and a vehicle, which have the advantages of richer functions, wider application scenarios, and a simple and compact structure.

[0007] An embodiment of the present disclosure provides a sound-producing device, comprising a vibrating member, a connecting member, an adjusting member, and at least two structural members, wherein the vibrating member is configured to generate vibrations; at least two structural members are arranged on different sides of the vibrating member, and the structural members are configured to follow the vibrations to produce sound; each structural member is connected to the vibrating member through at least one connecting member, and the connecting member includes a flexible state and a rigid state, and when the connecting member is switched to the rigid state, the vibration is transmitted to the corresponding structural member; the adjusting member is connected to each connecting member, and the adjusting member is configured to switch the connecting member to a rigid state or a flexible state.

[0008] The sound-generating device provided by the embodiments of the present disclosure has a vibrating member that can generate vibrations, and a structural member that can follow the vibrations of the vibrating member to generate sound. Since at least two structural members are respectively arranged on different sides of the vibrating member, the sound-generating device can generate sound in multiple directions. On this basis, each structural member is connected to the vibrating member by at least one connecting member. On the one hand, the connecting member can connect the vibrating member and the structural member, and the structural member can provide support for the vibrating member. On the other hand, the connecting member can transmit the vibrations generated by the vibrating member to the corresponding structural member, so that the structural member follows the vibrations and generates sound. The connecting member includes a flexible state and a rigid state. The adjusting member can adjust the state of the connecting member. When the adjusting member adjusts the connecting member to the rigid state, the connecting member can transmit the vibrations to the corresponding structural member. When the adjusting member adjusts the connecting member to the flexible state, the flexible state absorbs the vibrations, thereby blocking the vibrations from being transmitted to the corresponding structural member. With this arrangement, the adjusting member can adjust whether each structural member vibrates and generates sound by adjusting the states of different connecting members. Based on a single vibrating member, the function of generating sound in different directions at different times can be realized, and the function of generating sound in multiple directions at the same time can also be realized. Compared with the related art, in which the sound-emitting device emits directional sound or multi-directional sound simultaneously, the embodiment of the present disclosure is provided with a state-switchable connection member, so that one vibrating member can drive multiple structural members to vibrate and emit sound at the same or different times, thereby realizing the function of multi-directional sound at the same time, or sound in different directions at different times. It has richer functions and wider application scenarios. It uses a single vibrating member and the structure is simpler and more compact.

[0009] An embodiment of the present disclosure provides a vehicle, including a vehicle body, an electronic device and a sound-emitting device, wherein the vehicle body includes a structural panel and a decorative panel; the electronic device is connected to the vehicle body; the sound-emitting device has two structural components, namely the structural panel and the decorative panel; and the adjusting component is electrically connected to the electronic device.

[0010] The vehicle provided by the embodiment of the present disclosure has a state-switchable connecting member in the sound-emitting device, so that one vibrating member can drive the structural panel and the decorative panel to vibrate and emit sound at the same or different times, thereby realizing the function of multi-directional sound emission at the same time, or sound emission in different directions at different times. It has richer functions and wider application scenarios. It uses a single vibrating member and has a simpler and more compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] FIG1 is a schematic structural diagram of a vehicle provided by an embodiment of the present disclosure;

[0013] FIG2 is a schematic structural diagram (front view) of a sound-generating device provided in an embodiment of the present disclosure;

[0014] FIG3 is a schematic diagram of the state of a connecting member in the sound-generating device provided by an embodiment of the present disclosure;

[0015] FIG4 is a schematic diagram of a cross-sectional structure of a sound-generating device provided in an embodiment of the present disclosure;

[0016] FIG5 is a schematic diagram of the structure of the sound-generating device provided in an embodiment of the present disclosure (left side view);

[0017] FIG6 is a schematic structural diagram of a connecting portion of a sound-generating device provided in an embodiment of the present disclosure;

[0018] FIG7 is a schematic diagram of the structure of a switching portion connected to a vibrating member in a sound-generating device according to an embodiment of the present disclosure;

[0019] FIG8 is a schematic structural diagram of a switching portion connecting structural member in a sound-generating device according to an embodiment of the present disclosure;

[0020] FIG9 is a schematic structural diagram of a sound insulating member in a sound-generating device according to an embodiment of the present disclosure;

[0021] FIG10 is a schematic diagram of the arrangement of sound insulation members in the sound-generating device provided by an embodiment of the present disclosure;

[0022] FIG11 is a schematic structural diagram of the flexible portion of the sound-generating device provided by an embodiment of the present disclosure (rigid state);

[0023] FIG12 is a schematic structural diagram of the flexible portion of the sound-generating device provided by an embodiment of the present disclosure (flexible state);

[0024] FIG13 is a schematic structural diagram of an embodiment of a connecting member in a sound-generating device provided in an embodiment of the present disclosure;

[0025] FIG14 is a schematic structural diagram of another embodiment of a connecting member in a sound-generating device provided in an embodiment of the present disclosure;

[0026] FIG15 is a structural diagram of another embodiment of a connecting member in a sound-generating device provided by an embodiment of the present disclosure (the switching portion is in a flexible state);

[0027] FIG16 is a structural diagram of another embodiment of a connecting member in a sound-generating device provided by an embodiment of the present disclosure (the switching portion is in a rigid state);

[0028] FIG17 is a schematic diagram of the structural components of a vehicle provided in an embodiment of the present disclosure.

[0029] Description of reference numerals:

[0030] 100-sound-generating device; 110-vibrating member; 111-accommodating gap; 112-piezoelectric body; 113-vibrating body; 120-structural member; 130-connecting member; 131-first side; 132-second side; 133-connecting portion; 134-base; 1341-first base; 1342-second base; 135-switching portion; 136-flexible portion; 137-sealed cavity; 140-adjusting member; 150-accommodating cavity; 160-sound insulation member; 161-base layer; 162-sound-absorbing layer; 163-through hole; 200-vehicle body; 210-structural panel; 220-decorative panel; 300-electronic equipment; X-thickness direction. DETAILED DESCRIPTION

[0031] The technical solutions of the present disclosure are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the embodiments described are only a portion of the embodiments of the present disclosure, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present disclosure without creative effort are within the scope of protection of the present disclosure.

[0032] In the description of the present disclosure, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present disclosure.

[0033] In the description of this disclosure, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on the specific circumstances.

[0034] In addition, the technical features involved in different embodiments of the present disclosure described below can be combined with each other as long as they do not conflict with each other.

[0035] The embodiments of the present disclosure provide a vehicle, and the embodiments of the present disclosure do not limit the type of vehicle. For example, in the embodiments of the present disclosure, the vehicle may refer to a sedan, an off-road vehicle, a sport utility vehicle (SUV), a multi-purpose vehicle (MPV), a truck, a passenger car, a bus, etc. In the embodiments of the present disclosure, the vehicle may refer to a gasoline-powered vehicle, a new energy vehicle, a hybrid gasoline-electric vehicle, or a vehicle powered by a traction power supply system, such as a trolleybus.

[0036] 1 , the vehicle provided in the embodiment of the present disclosure includes a vehicle body 200 , a power system, an electrical system, an entertainment system, etc. A sound-emitting device 100 is usually provided on the vehicle body 200 , and the sound-emitting device 100 can be used for in-vehicle entertainment, human-computer interaction, interaction between the interior and exterior spaces of the vehicle, etc. However, in related technologies, the sound-emitting device 100 is usually directional in sound, or emits sound in multiple directions simultaneously, which is difficult to meet usage requirements.

[0037] Therefore, the embodiment of the present disclosure also provides a sound-generating device 100. Referring to Figures 2, 3 and 4, the sound-generating device 100 includes a vibrating member 110, a connecting member 130, an adjusting member 140 and at least two structural members 120. The vibrating member 110 is configured to generate vibration; at least two structural members 120 are arranged on different sides of the vibrating member 110, and the structural members 120 are configured to follow the vibration to generate sound; each structural member 120 is connected to the vibrating member 110 through at least one connecting member 130, and the connecting member 130 includes a flexible state and a rigid state. When the connecting member 130 is switched to the rigid state, the vibration is transmitted to the corresponding structural member 120; the adjusting member 140 is connected to each connecting member 130, and the adjusting member 140 is configured to adjust the state of the connecting member 130, that is, to switch the connecting member 130 from a flexible state to a rigid state, or to switch the connecting member 130 from a rigid state to a flexible state.

[0038] In the disclosed embodiment, the vibrating element 110 may be electromagnetic, generating vibrations through the electromagnetic effect; or it may be piezoelectric, generating vibrations through the piezoelectric effect. For example, if the vibrating element 110 is piezoelectric, when an electric field is applied to the vibrating element 110, the vibrating element 110 deforms under the action of the electric field. When the electric field changes, the deformation of the vibrating element 110 changes accordingly, thereby generating vibrations.

[0039] In the embodiment of the present disclosure, there may be two or more structural members 120. The multiple structural members 120 may be distributed in a circular array around the vibrating member 110, with each structural member 120 facing a different direction relative to the vibrating member 110. For example, three structural members 120 are distributed in an equilateral triangle, and six structural members 120 are distributed in a regular hexagon. Referring to Figures 2, 3, and 4, in one possible implementation of the embodiment of the present disclosure, there are two structural members 120, and the two structural members 120 are arranged opposite each other, with the vibrating member 110 located between the two structural members 120.

[0040] In the embodiment of the present disclosure, the flexible state and the rigid state are relative concepts rather than absolute concepts. The connecting member 130 in the flexible state is more likely to deform, thereby weakening the transmission of vibration. The connecting member 130 in the rigid state is more difficult to deform, and can transmit the vibration more accurately from the vibration member 110 to the corresponding structural member 120.

[0041] In the embodiment of the present disclosure, the connector 130 has many possible forms. For example, the connector 130 is made of a magnetostrictive material, and when different magnetic fields are applied to the connector 130, the flexible state and the rigid state can be switched. For another example, the connector 130 is made of a memory alloy material, and when the temperature of the connector 130 is changed, the flexible state and the rigid state can be switched. For another example, the connector 130 is an airbag, and the flexible state and the rigid state can be switched by inflation and deflation.

[0042] In the disclosed embodiment, the connector 130 may be made of a special material capable of switching between a flexible state and a rigid state. In some embodiments, the connector 130 may also be a combined structure having a rigid base 134 and at least one switching portion 135. In the case of a combined structure, the switching portion 135 has a flexible state and a rigid state. When the switching portion 135 switches to the rigid state, vibration is transmitted to the corresponding structural member 120 through the base 134.

[0043] In the embodiment of the present disclosure, when the connector 130 is a combined structure, the base 134 included therein can be provided at both ends or on the side of the switch portion 135. Referring to Figures 13 and 14, the base 134 is provided at both ends of the switch portion 135, and referring to Figures 15 and 16, the base 134 is provided on the side of the switch portion 135.

[0044] In the embodiment of the present disclosure, the switching part 135 can be made of magnetostrictive material, and when different magnetic fields are applied to the switching part 135, the switching between the flexible state and the rigid state can be achieved; for example, the switching part 135 is made of memory alloy material, and when the temperature of the switching part 135 is changed, the switching between the flexible state and the rigid state can be achieved; for another example, the switching part 135 is an airbag, and the switching between the flexible state and the rigid state can be achieved by inflation and deflation.

[0045] In the embodiment of the present disclosure, the adjusting member 140 may have various possible forms depending on the form of the connecting member 130 or the switching portion 135. For example, when the connecting member 130 or the switching portion 135 is made of a magnetostrictive material, the adjusting member 140 may be a component such as an electromagnet that can generate and adjust a magnetic field; for another example, when the connecting member 130 or the switching portion 135 is made of a memory alloy material, the adjusting member 140 may be a component such as a heating wire that can change temperature; for another example, when the connecting member 130 is an airbag, the adjusting member 140 may be an air pump connected to the airbag.

[0046] In the sound-emitting device 100 of the embodiment of the present disclosure, the vibrating member 110 can generate vibrations, and the structural member 120 can follow the vibration of the vibrating member 110 to produce sound. Since at least two structural members 120 are respectively arranged on different sides of the vibrating member 110, the sound-emitting device 100 can produce sound in multiple directions.

[0047] On this basis, each structural member 120 is connected to the vibrating member 110 through at least one connecting member 130. On the one hand, the connecting member 130 can connect the vibrating member 110 and the structural member 120, and the structural member 120 provides support for the vibrating member 110. On the other hand, the connecting member 130 can transmit the vibration generated by the vibrating member 110 to the corresponding structural member 120, so that the structural member 120 makes sound following the vibration.

[0048] Among them, the connecting member 130 includes a flexible state and a rigid state, and the adjusting member 140 can adjust the state of the connecting member 130. When the adjusting member 140 adjusts the connecting member 130 to the rigid state, the connecting member 130 can transmit vibration to the corresponding structural member 120. When the adjusting member 140 adjusts the connecting member 130 to the flexible state, the flexible state can absorb the vibration, thereby blocking the vibration from being transmitted to the corresponding structural member 120. With this arrangement, the adjusting member 140 can adjust whether each structural member 120 vibrates and makes sound by adjusting the states of different connecting members 130. Referring to Figure 3, the upper connecting member 130 is in a rigid state and the lower connecting member 130 is in a flexible state. When the vibrating member 110 vibrates, it can drive the upper structural member 120 to vibrate, but it is difficult to drive the lower structural member 120 to vibrate. Based on one vibrating member 110, the function of making sound in different directions at different times can be realized, and the function of making sound in multiple directions at the same time can also be realized.

[0049] Compared with the related art, in which the sound-emitting device 100 is directional or multi-directional and simultaneous, the embodiment of the present disclosure is provided with a state-switchable connecting member 130, so that one vibration member 110 can drive multiple structural members 120 to vibrate and make sounds at the same or different times, thereby realizing the function of multi-directional sound at the same time, or sound in different directions at different times. It has richer functions and wider application scenarios. It uses a single vibration member 110, and the structure is simpler and more compact.

[0050] In order to evenly transmit the vibration generated by the vibration member 110 to the structural member 120 , referring to Figures 2, 3 and 4 , in a possible implementation of the embodiment of the present disclosure, two connecting members 130 are connected between the vibration member 110 and each structural member 120 , and the two connecting members 130 are respectively arranged at opposite ends of the vibration member 110 .

[0051] In the embodiment of the present disclosure, the vibration member 110 can be a block structure, a plate structure, etc. Referring to Figures 3, 4 and 5, in a possible implementation of the embodiment of the present disclosure, the vibration member 110 is a rectangular plate structure, and along its thickness direction X, structural members 120 are respectively provided on two opposite sides of the vibration member 110.

[0052] To reduce space usage, referring to Figures 2, 4, and 5, in one possible implementation of the disclosed embodiment, the surface of the vibrating member 110 is provided with accommodating notches 111. The number and position of the accommodating notches 111 correspond one-to-one with the connecting member 130. At least a portion of the connecting member 130 is disposed within the accommodating notches 111 to reduce space usage. It should be noted that to prevent the vibrating member 110 from contacting the structural member 120 during vibration, the connecting member 130 should extend beyond the accommodating notches 111 along the thickness direction X of the vibrating member 110 to leave a gap between the vibrating member 110 and the structural member 120.

[0053] In the embodiment of the present disclosure, the receiving notch 111 can be provided on the end surface of the vibrating member 110 or at the corner of the vibrating member 110. To facilitate the connection of the connecting member 130, referring to Figures 2 and 4, in one possible implementation of the embodiment of the present disclosure, the receiving notch 111 is located at the corner of the vibrating member 110.

[0054] In the embodiment of the present disclosure, the connection between the connecting member 130 and the vibrating member 110 can be achieved by clamping, bonding, welding, or fastener connection. For example, the connecting member 130 and the vibrating member 110 are fixed by bonding. In addition, the connection between the connecting member 130 and the corresponding structural member 120 can also be achieved by clamping, bonding, welding, or fastener connection. For example, the connecting member 130 and the corresponding structural member 120 are fixed by bonding.

[0055] In the sound-emitting device 100 of the embodiment of the present disclosure, since each structural member 120 is connected to the vibration member 110 through two connecting members 130, and the two connecting members 130 are respectively arranged at opposite ends of the vibration member 110, the vibration generated by the vibration member 110 can be evenly transmitted to the structural member 120, and the two connecting members 130 have a higher fault tolerance rate. In the event that one connecting member 130 fails, the other connecting member 130 can still transmit vibration. In addition, the connecting members 130 are arranged at both ends of the vibration member 110, so that the vibration member 110 can be supported more stably.

[0056] In order to facilitate the connecting member 130 to transfer the vibration member 110 to the corresponding structural member 120, referring to Figure 6, in a possible implementation of the embodiment of the present disclosure, the first side 131 of the connecting member 130 is connected to the corresponding structural member 120, and the second side 132 of the connecting member 130 is provided with at least two connecting parts 133, the connecting parts 133 are connected to the vibration member 110, and the at least two connecting parts 133 are symmetrically arranged about the vibration member 110.

[0057] In the embodiment of the present disclosure, the first side 131 and the second side 132 of the connecting member 130 can be arranged relative to each other or adjacent to each other. In order to facilitate the connecting member 130 to transmit vibration between the vibrating member 110 and the structural member 120, the first side 131 and the second side 132 of the connecting member 130 are arranged relative to each other.

[0058] In the embodiment of the present disclosure, the number of connecting portions 133 can be two or more, and the multiple connecting portions 133 can be arranged in a rectangular array or a linear array on the surface of the vibrating member 110. Referring to Figure 6, in one possible implementation of the embodiment of the present disclosure, the connecting member 130 is provided with two connecting portions 133, and the two connecting portions 133 are respectively provided at the two ends of the vibrating member 110. The connecting portions 133 can also be provided in the corresponding receiving notches 111.

[0059] In the sound-emitting device 100 of the embodiment of the present disclosure, the first side 131 of the connecting member 130 is connected to the structural member 120, so that the contact area between the connecting member 130 and the structural member 120 is larger and the vibration transmission effect is better. At least two connecting parts 133 of the connecting member 130 are symmetrically arranged with respect to the vibrating member 110, which facilitates the uniform transmission of the vibration generated by the vibrating member 110 to the connecting member 130, improves the fault tolerance rate, and provides more stable support for the vibrating member 110.

[0060] It should be noted that the connecting member 130 has a variety of possible structural forms, and the connecting member 130 can be a block structure, a plate structure, a strip structure, etc. Referring to Figures 4 and 5, in one possible implementation of the embodiment of the present disclosure, the connecting member 130 is a strip structure, and a portion of the connecting member 130 is accommodated in the accommodating notch 111, forming a gap between the vibrating member 110 and the structural member 120; referring to Figure 6, in another possible implementation of the embodiment of the present disclosure, the connecting member 130 is a plate structure, and the connecting member 130 is located between the vibrating member 110 and the corresponding structural member 120, and the connecting member 130 protrudes toward one side of the vibrating member 110 to form a connecting portion 133.

[0061] In order to make the state switching of the connecting member 130 more efficient, referring to Figures 7 and 8, in a possible implementation of the embodiment of the present disclosure, the connecting member 130 includes a base 134 and at least one switching portion 135, the base 134 is connected to the corresponding structural member 120, and the switching portion 135 is connected to the vibration member 110; or, the switching portion 135 is connected to the corresponding structural member 120, and the base 134 is connected to the vibration member 110; wherein, the base 134 is rigidly configured, and the switching portion 135 can switch between a flexible state and a rigid state.

[0062] In the embodiment of the present disclosure, one of the base 134 and the switching part 135 is connected to the vibrating member 110, and the other is connected to the corresponding structural member 120. The base 134 can be a plate-like structure, and the switching part 135 is arranged on the side of the base 134, or the switching part 135 is arranged at the end of the base 134.

[0063] 7 , in one possible implementation of the disclosed embodiment, the switching portion 135 is located at the end of the base 134 , the switching portion 135 is connected to the vibrating member 110 , the base 134 is connected to the corresponding structural member 120 , and the switching portion 135 can be provided at both ends of the base 134 , and the two switching portions 135 are symmetrically distributed about the base 134 ; referring to FIG8 , in another possible implementation of the disclosed embodiment, the switching portion 135 is located on the side of the base 134 , the switching portion 135 is connected to the corresponding structural member 120 , and two bases 134 are provided on the side of the switching portion 135 facing the vibrating member 110 , and the two bases 134 are respectively connected to the vibrating member 110 .

[0064] In the embodiment of the present disclosure, the thickness direction X of the vibrating member 110 refers to the relative arrangement direction of the two structural members 120. In one possible implementation of the embodiment of the present disclosure, the two structural members 120 may be arranged in parallel, in which case the thickness direction X is perpendicular to the facing end surfaces of the two structural members 120. In another possible implementation of the embodiment of the present disclosure, the two structural members 120 may be arranged at an angle, in which case the thickness direction X is the direction of one structural member 120 relative to the other structural member 120.

[0065] Referring to Figures 6, 13 and 14, as a possible implementation of the embodiment of the present disclosure, the first side 131 of the connecting member 130 is connected to the corresponding structural member 120, and the second side 132 of the connecting member 130 is provided with two connecting parts 133, the connecting parts 133 are connected to the vibration member 110, and the two connecting parts 133 are symmetrically arranged about the vibration member 110, and the two switching parts 135 are arranged on the first side 131 and are arranged corresponding to the end of the connecting part 133 away from the vibration member 110, wherein the end surfaces corresponding to the connecting part 133 and the switching part 135 are all provided on the switching part 135.

[0066] Specifically, two switching portions 135 are provided on the first side 131. The cross-sectional area of ​​the switching portion 135 in the thickness direction X of the vibrating member 110 is slightly larger than the area of ​​the end surfaces corresponding to the connecting portion 133 and the switching portion 135. This minimizes the volume of the switching portion 135, thereby reducing costs. Furthermore, in some embodiments, if the switching portion 135 is an airbag, its small size and rapid inflation and deflation speed can improve the sensitivity of switching the sound direction. Furthermore, the smaller the size, the greater the rigidity of the airbag-shaped switching portion 135 in a rigid state, making it easier to transmit vibrations, resulting in better sound quality.

[0067] It can be understood that, on the other hand, the smaller the volume of the switching portion 135, the larger the volume of the base 134 on the first side 131 can be. Since the base 134 is a rigid member, the larger the rigid connection area between the first side 131 and the structural member 120, the better the vibration transmission effect, which is conducive to improving the sound effect. In some embodiments, the connection between the connecting member 130 and the vibrating member 110 can be gluing, welding, etc., and the connection between the connecting member 130 and the structural member 120 can also be gluing, welding, etc.

[0068] 7 and 8 , in another possible implementation of the embodiment of the present disclosure, the connecting member 130 is located between the vibrating member 110 and the corresponding structural member 120 , and the connecting member 130 is connected to the vibrating member 110 via a connecting portion 133 . The connecting portion 133 may be used as a switching portion 135 , and the remaining portion of the connecting member 130 may be used as a base 134 ; alternatively, the switching portion 135 may be provided on a side of the connecting member 130 facing the corresponding structural member 120 , and the connecting portion 133 may be connected to the vibrating member 110 as a part of the base 134 .

[0069] In the sound-emitting device 100 of the embodiment of the present disclosure, since the connecting member 130 includes a base 134 and a switching member 135, the base 134 is rigidly arranged and is only used for connection and vibration transmission without state adjustment. The state switching is performed by the switching member 135. The switching member 135 is smaller in size than the entire connecting member 130, and the state switching is more efficient.

[0070] 2 , 13 and 14 , in another possible implementation of the embodiment of the present disclosure, the structure of the connector 130 may also be:

[0071] In the thickness direction X of the vibrating member 110, a base 134 is respectively provided at both ends of the switching portion 135, and the end of the base 134 away from the switching portion 135 is respectively provided on the structural member 120 and the vibrating member 110, forming a structural form in which a switching portion 135 is sandwiched between two bases 134. It should be noted that the two ends of the switching portion 135 can be arranged opposite to or adjacent to each other. Referring to Figure 13, the bases 134 are respectively provided at the opposite ends of the switching portion 135; and referring to Figure 14, the bases 134 are respectively provided at the adjacent ends of the switching portion 135.

[0072] In one specific embodiment, the switching portion 135 in the middle is an inflatable and deflable airbag. When the airbag is inflated, the switching portion 135 is in a rigid state, and the vibration generated by the vibrating member 110 is transmitted to the structural member 120 through the base 134, the switching portion 135, and the base 134 in sequence, thereby achieving vibration sound. The connecting member 130 of this structural form has a base 134 at both ends, and the base 134 is a rigid member. That is, the contact between the connecting member 130, the vibrating member 110, and the structural member 120 is all rigid, which is more conducive to the transmission of vibration and effectively drives the structural member 120 to vibrate and produce sound.

[0073] In addition, the volume of the connector 130 of this structural form is relatively small, and the installation space requirement is low, making it easier to arrange the sound-generating device 100 in the embodiment of the present disclosure in a small space within the vehicle body 200, or even on the interior surface of the vehicle.

[0074] Obviously, in other embodiments, a switching portion 135 is sandwiched between two bases 134, and multiple groups can be provided in the connecting member 130 to make the transmission and adjustment of vibration more flexible and changeable.

[0075] 2 , 15 and 16 , in another possible implementation of the embodiment of the present disclosure, the structure of the connector 130 may also be:

[0076] In the thickness direction X perpendicular to the vibration member 110, a base 134 is respectively provided at both side ends of the switching part 135; the base 134 includes a first base 1341 and a second base 1342, one end of the first base 1341 is provided on the vibration member 110; one end of the second base 1342 is provided on the structural member 120, and the other end is movably connected to the end of the first base 1341 away from the vibration member 110, wherein the first base 1341 and the second base 1342 are both connected to the side end surface of the switching part 135.

[0077] It can be understood that when the switching portion 135 is an airbag, the first base 1341 and the second base 1342 are hinged. When the switching portion 135 is not inflated, the vibration generated by the vibrating member 110 is transmitted to the first base 1341. Due to the movable connection between the first base 1341 and the second base 1342, the vibration cannot be effectively transmitted to the second base 1342, thereby achieving effective suppression of vibration sound. When the switching portion 135 is in an inflated state, the tensile force of the inflated switching portion 135 drives the mutually hinged first base 1341 and the second base 1342 to be in a straight line in the thickness direction X of the vibrating member 110, and they abut against each other under the drive of the switching portion 135. After the vibrating member 110 generates vibration, the vibration can be transmitted from the first base 1341 to the second base 1342. In the case where the switching portion 135 of the connecting member 130 of this structure is in a rigid state, the transmission of vibration is achieved through the rigid base 134. Compared with the aforementioned method in which the transmission route of vibration needs to pass through the switching portion 135, the vibration transmission effect is better and can bring about a better sound effect.

[0078] In some implementations of the disclosed embodiments, the connection between the first base 1341 and the vibrating member 110 may also be a hinged movable connection or a fixed connection; the connection between the second base 1342 and the structural member 120 may also be a hinged movable connection or a fixed connection. When the first base 1341 is fixedly connected to the vibrating member 110 and the second base 1342 is also fixedly connected to the structural member 120, a gap required for the deformation of the switching portion 135 needs to be reserved between the structural member 120 and the driven member (such as a vehicle body panel, an interior panel, etc.). It is understood that the value of the above gap should be slightly less than or equal to the gap value required for the deformation of the switching portion 135 to ensure effective contact between the structural member and the driven member without causing deformation of the driven member.

[0079] In the embodiment of the present disclosure, there is a gap between the end of the switching portion 135 and the structural member 120, and between the end of the switching portion 135 and the vibration member 110. The advantage of this design is that when the switching portion 135 is in a rigid state, due to the existence of the gap, the vibration generated by the vibration member 110 is difficult to be transmitted to the structural member 120 through the switching portion 135. After all, the material rigidity of the base 134 and the material rigidity of the switching portion 135 are different, and the vibration transmission ability is also different. If the base 134 and the switching portion 135 transmit vibration to the structural member 120 at the same time, it may cause inconsistent vibration frequencies before and after, affecting the sound effect.

[0080] It is understood that the size of the gap can be determined by calculating the minimum distance between the upper end surface of the first base portion 1341 away from the structural member 120 and the vibration member 110 when the switching portion 135 is in the flexible state.

[0081] Of course, in some implementations of the embodiments of the present disclosure, for the sake of simplifying the design, there may be no connection between the first base 1341 and the vibration member 110, and between the second base 1342 and the structural member 120. When the switching portion 135 is in a rigid state, the switching portion 135 drives the first base 1341 and the second base 1342 to abut against each other through deformation, and at the same time, the other ends of the first base 1341 and the second base 1342 abut against the vibration member 110 and the structural member 120, respectively, to realize the transmission of vibration.

[0082] In order to reduce mutual interference between the structural members 120, referring to Figures 2, 4 and 9, in a possible implementation of the embodiment of the present disclosure, at least two structural members 120 enclose a housing cavity 150, and the vibrating member 110 and the connecting member 130 are both arranged in the housing cavity 150; a sound insulating member 160 is arranged between two adjacent structural members 120, and the middle part of the sound insulating member 160 protrudes toward the vibrating member 110 to separate the housing cavity 150 into at least two chambers, and the at least two chambers correspond one-to-one to the at least two structural members 120; wherein the sound insulating member 160 is a flexible sound insulating member, or the sound insulating member 160 is flexibly connected to the corresponding structural member 120.

[0083] In the disclosed embodiment, the sound insulator 160 may be a block-shaped structure with a protrusion disposed in the middle thereof facing the vibrating member 110. Alternatively, the sound insulator 160 may be a plate-shaped structure with the middle thereof bent toward the vibrating member 110. It should be noted that a gap should be left between the sound insulator 160 and the vibrating member 110 to avoid affecting the vibration of the vibrating member 110.

[0084] In the embodiment of the present disclosure, one or more sound insulation members 160 may be arranged between two adjacent structural members 120. In order to improve the sound insulation effect, referring to Figure 10, in a possible implementation of the embodiment of the present disclosure, sound insulation members 160 are arranged on all four sides of the vibration member 110, and the sound insulation members 160 are connected end to end to form an annular structure, so that the two structural members 120 and the four sound insulation members 160 enclose a receiving cavity 150.

[0085] In order to avoid the transmission of vibration between the two structural members 120 corresponding to the sound insulation member 160, the sound insulation member 160 is made of a flexible material, or the sound insulation member 160 and the corresponding structural member 120 are flexibly connected, thereby reducing the transmission of vibration and improving the sound insulation effect.

[0086] The sound-emitting device 100 of the embodiment of the present disclosure is provided with a sound insulating member 160 between two adjacent structural members 120. The sound insulating member 160 divides the accommodating cavity 150 into at least two chambers, so that each structural member 120 has an independent chamber. The sound insulating member 160 blocks vibration to reduce the possibility of the vibration generated by the structural member 120 entering other chambers and causing the possibility of other structural members 120 vibrating, thereby reducing the mutual influence when the structural members 120 vibrate.

[0087] In order to reduce the echo interference caused by the vibration generated by the vibration member 110 in the accommodating cavity 150, referring to Figure 9, in a possible implementation of the embodiment of the present disclosure, the sound insulation member 160 includes a base layer 161 and a sound absorbing layer 162, the base layer 161 is connected to the corresponding structural member 120, and the sound absorbing layer 162 is located on the side of the base layer 161 close to the vibration member 110.

[0088] In the embodiment of the present disclosure, the base layer 161 is used to provide support for the sound-absorbing layer 162. The base layer 161 can be made of metal material or plastic material. The sound-absorbing layer 162 is bonded to the surface of the base layer 161. The sound-absorbing layer 162 is made of loose and porous material. For example, the sound-absorbing layer 162 is made of sound-absorbing cotton, foam material, etc.

[0089] The sound-emitting device 100 of the embodiment of the present disclosure has a sound-absorbing layer 162 provided on the sound insulation member 160. The sound-absorbing layer 162 is provided on the side close to the vibration member 110, that is, it forms the inner wall of the accommodating cavity 150. When the vibration member 110 in the accommodating cavity 150 vibrates, the vibration wave is transmitted to the sound-absorbing layer 162 and absorbed, thereby reducing the possibility of the vibration wave being reflected to form echo interference.

[0090] In order to reduce the influence of other components on the accommodating cavity 150, referring to Figures 9 and 11, in a possible implementation of the embodiment of the present disclosure, the adjusting member 140 is located on the side of the sound insulating member 160 away from the vibration member 110, and a through hole 163 is opened on the sound insulating member 160, and the adjusting member 140 is connected to the connecting member 130 through the through hole 163.

[0091] In the embodiment of the present disclosure, the number of the adjusting members 140 can be one or more. For example, multiple adjusting members 140 are connected to multiple connecting members 130 in a one-to-one correspondence. In the case where the connecting member 130 includes multiple switching parts 135, multiple adjusting members 140 can also be connected to multiple connecting parts 133 in a one-to-one correspondence. To simplify the structure, referring to Figures 4 and 11, in one possible implementation of the embodiment of the present disclosure, there is one adjusting member 140, and one adjusting member 140 is connected to multiple connecting parts 133 respectively, or one adjusting member 140 is connected to multiple switching parts 135 respectively, and the adjusting member 140 can adjust each connecting member 130 / switching part 135 separately.

[0092] In the disclosed embodiment, the connection between the adjusting member 140 and the connecting member 130 / switching portion 135 can be a circuit connection, where a cable passes through the through hole 163 to electrically connect the adjusting member 140 and the connecting member 130 / switching portion 135. Alternatively, the connection between the adjusting member 140 and the connecting member 130 / switching portion 135 can be a pipeline connection, where a pipeline passes through the through hole 163 to connect the adjusting member 140 and the connecting member 130 / switching portion 135. The connection can be configured accordingly based on the form of the connecting member 130. Furthermore, the vibration of the vibrating member 110 requires electrical energy, and a cable electrically connecting the vibrating member 110 to an external power source can also be passed through the through hole 163.

[0093] In the sound-emitting device 100 of the embodiment of the present disclosure, the adjustment member 140 is arranged on the side of the sound insulation member 160 away from the vibration member 110, that is, the tuning member is located outside the accommodating cavity 150, so the impact on the various components in the accommodating cavity 150 is relatively small. The through hole 163 is provided on the sound insulation member 160, which facilitates the connection between the adjustment member 140 and the connecting member 130.

[0094] In order to facilitate the state switching of the connecting member 130, referring to Figures 11 and 12, in a possible implementation of the embodiment of the present disclosure, the connecting member 130 includes a flexible portion 136, and the flexible portion 136 forms a sealed cavity 137; the adjusting member 140 is a pump body, and the pump body is connected to the sealed cavity 137. Referring to Figure 11, the pump body is configured to pump the fluid into the sealed cavity 137 to switch the corresponding connecting member 130 to a rigid state. Referring to Figure 12, the pump body is configured to pump the fluid out of the sealed cavity 137 to switch the corresponding connecting member 130 to a flexible state.

[0095] In the embodiment of the present disclosure, the flexible portion 136 is made of a flexible material, such as polyester fiber, polypropylene fiber, rubber, etc., and the connector 130 can be made of a flexible material as a whole to form the flexible portion 136, or alternatively, the switching portion 135 of the connector 130 is made of a flexible material, and the switching portion 135 forms the flexible portion 136.

[0096] In the embodiments of the present disclosure, the fluid can be a liquid, such as pure water or hydraulic oil, and the corresponding pump body is a hydraulic pump; the fluid can also be a gas, such as air or helium, and the corresponding pump body is an air pump. For example, the pump body is an air pump and the fluid is air, which is easy to implement, economical and reliable.

[0097] It should be noted that the ratio of the volume of the sealing cavity 137 to the volume of the connecting member 130 has a great influence on the rigidity of the connecting member 130. When the volume of the sealing cavity 137 accounts for a large proportion, even if fluid is pumped into the sealing cavity 137, its rigidity is still relatively small. In order to obtain a more suitable rigidity, the volume of the sealing cavity 137 and the volume of the connecting member 130 can be 1 / 10 to 1 / 4. For example, the ratio of the two is 1 / 10, 1 / 5, 1 / 4, etc.

[0098] In the sound-generating device 100 of the embodiment of the present disclosure, the flexible portion 136 forms a sealed cavity 137 , and the state of the flexible portion 136 is changed by pumping in or out a fluid. The structure is simple and easy to implement.

[0099] In order to improve the sound effect, referring to Figures 2 and 6, in a possible implementation of the embodiment of the present disclosure, the vibration member 110 includes a vibration body 113 and at least one piezoelectric body 112, the piezoelectric body 112 is connected to the vibration body 113, and the vibration body 113 is connected to the connecting member 130; wherein the piezoelectric body 112 is configured to generate vibration, and the elastic modulus of the vibration body 113 is smaller than the elastic modulus of the piezoelectric body 112 to amplify the amplitude of the vibration.

[0100] In the embodiment of the present disclosure, the piezoelectric body 112 is used to generate vibration through the piezoelectric effect, and the vibrating body 113 is made of a material with a small elastic modulus, which can produce a large elastic deformation, thereby amplifying the amplitude of the vibration generated by the piezoelectric body 112.

[0101] In the disclosed embodiment, the piezoelectric body 112 is connected to the vibrating body 113, which is connected to the connector 130. While there is one vibrating body 113, there can be one or more piezoelectric bodies 112. Multiple piezoelectric bodies 112 are centrally symmetrically distributed about the vibrating body 113 to increase output power and enhance the vibration effect. For example, the vibrating body 113 is a plate-like structure, and there are two piezoelectric bodies 112. Along the thickness direction X of the vibrating body 113, the two piezoelectric bodies 112 are fixedly connected to either side of the vibrating body 113.

[0102] In the embodiment of the present disclosure, the projected outline of the piezoelectric body 112 and the projected outline of the vibrating body 113 may completely or partially overlap along the thickness direction X of the vibrating body 113. Referring to Figures 2 and 6, in one possible implementation of the embodiment of the present disclosure, the projected outline of the piezoelectric body 112 is smaller than the projected outline of the vibrating body 113, so that accommodating notches 111 are formed at both ends of the piezoelectric body 112.

[0103] In the sound-generating device 100 of the disclosed embodiment, since the vibrating member 110 includes a piezoelectric body 112 and a vibrating body 113, the piezoelectric body 112 generates vibration, and the vibration amplitude is amplified by the vibrating body 113 to increase the output power, so as to better drive the structural member 120 to generate vibration, and also to compensate for the loss of vibration during the transmission process.

[0104] In order to achieve two-way sound generation inside and outside the vehicle, referring to Figures 1 and 17, in a possible implementation of the embodiment of the present disclosure, the vehicle body 200 includes a structural panel 210 and a decorative panel 220, and the vehicle also includes an electronic device 300, which is connected to the vehicle body 200. There are two structural members 120 in the sound-generating device 100, namely the structural panel 210 and the decorative panel 220, and the adjustment member 140 is electrically connected to the electronic device 300.

[0105] In the disclosed embodiment, the structural panel 210 may be a door panel, a roof panel, a trunk cover panel, etc. The structural panel 210 is located on the outside of the vehicle, and the decorative panel 220 is located on the inside of the vehicle. The decorative panel 220 is connected to the corresponding structural panel 210 or the vehicle column system.

[0106] In the embodiment of the present disclosure, the electrical connection between the electronic device 300 and the adjusting member 140 can be a wired connection, such as a cable connection, or the electrical connection between the electronic device 300 and the adjusting member 140 can be a wireless connection, such as a wireless communication module connection. The electronic device 300 can send an adjustment instruction to the adjusting member 140 according to the user's usage requirements, and the adjusting member 140 controls the corresponding connecting member 130 to switch states according to the adjustment instruction.

[0107] The electronic device 300 in the embodiment of the present disclosure may be a vehicle-mounted system, or an electronic unit that controls the sound-generating device 100 in the embodiment of the present disclosure, such as an on-board terminal (ECU). The electronic device 300 may also be a terminal device that is interconnected with the vehicle-mounted system, such as a mobile phone, tablet, or personal computer (PC).

[0108] For example, when the electronic device 300 determines that the user needs to make a sound outside the vehicle, the regulating member 140 is controlled so that the regulating member 140 pumps air into the connecting member 130 connected to the structural panel 210, and pumps out the air in the connecting member 130 connected to the decorative panel 220, thereby transmitting the vibration generated by the vibrating member 110 to the structural panel 210, causing the structural panel 210 to vibrate and make a sound; correspondingly, when the electronic device 300 determines that the user needs to make a sound inside the vehicle, the regulating member 140 is controlled so that the regulating member 140 pumps air into the connecting member 130 connected to the decorative panel 220, and pumps out the air in the connecting member 130 connected to the structural panel 210, thereby transmitting the vibration generated by the vibrating member 110 to the decorative panel 220, causing the decorative panel 220 to vibrate and make a sound.

[0109] The vehicle of the embodiment of the present disclosure sets the structural panel 210 and the decorative panel 220 as the structural member 120, with the structural panel 210 facing the outside of the vehicle and the decorative panel 220 facing the inside of the vehicle. The vibration member 110 of the sound-emitting device 100 can respectively drive the structural member 120 and the decorative panel 220 to vibrate, thereby making sound outside or inside the vehicle, and the adjustment member 140 is electrically connected to the electronic device 300 and is regulated by the electronic device 300, which is more convenient and intelligent.

[0110] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A sound generating device (100) comprising: A vibrating member (110) configured to generate vibrations; At least two structural members (120) disposed on different sides of the vibrating member (110), the structural members (120) being configured to vibrate and generate sound following the vibrations; A connecting member (130), each of the structural members (120) being connected to the vibrating member (110) by at least one connecting member (130), and the connecting member (130) including a flexible state and a rigid state, and in the case where the connecting member (130) switches to the rigid state, transmitting the vibrations to the corresponding structural member (120); An adjusting member (140) connected to each of the connecting members (130), the adjusting member (140) being configured to switch the connecting member (130) to the rigid state or the flexible state.

2. The sound generating device (100) according to claim 1, wherein, Two of the connecting members (130) are connected between the vibrating member (110) and each of the structural members (120), and the two connecting members (130) are respectively disposed at opposite ends of the vibrating member (110).

3. The sound generating device (100) according to claim 1 or 2, wherein, A first side (131) of the connecting member (130) is connected to the corresponding structural member (120), a second side (132) of the connecting member (130) is provided with at least two connecting portions (133), the connecting portions (133) are connected to the vibrating member (110), and the at least two connecting portions (133) are symmetrically disposed with respect to the vibrating member (110).

4. The sound generating device (100) according to claim 3, wherein, Two of the switching portions (135) are disposed on the first side (131) and are provided corresponding to ends of the connecting portions (133) remote from the vibrating member (110), wherein end faces of the connecting portions (133) corresponding to the switching portions (135) are all disposed on the switching portions (135).

5. The sound generating device (100) according to any one of claims 1 to 4, wherein, The connecting member (130) includes a base portion (134) having rigidity and at least one switching portion (135), the base portion (134) being disposed at two ends or on a side of the switching portion (135), and the switching portion (135) having the flexible state and the rigid state.

6. The sound generating device (100) according to claim 5, wherein, The base portion (134) is connected to the corresponding structural member (120), and the switching portion (135) is connected to the vibrating member (110); or, the switching portion (135) is connected to the corresponding structural member (120), and the base portion (134) is connected to the vibrating member (110).

7. The sound generating device (100) according to claim 5 or 6, wherein, In a thickness direction of the vibrating member (110), at least one base portion (134) is respectively disposed at two ends of the switching portion (135), and ends of the base portions (134) remote from the switching portion (135) are respectively disposed on the structural member (120) and the vibrating member (110).

8. The sound generating device (100) according to any one of claims 5 to 7, wherein, In a direction perpendicular to the thickness direction of the vibrating member (110), the base portions (134) are respectively disposed at two side ends of the switching portion (135); The base (134) includes: a first base (134) with one end disposed on the vibrating member (110); a second base (134) with one end disposed on the structural member (120) and the other end movably connected to the end of the first base (134) away from the vibrating member (110), wherein both the first base (134) and the second base (134) are connected to the side end surface of the switching portion (135).

9. The sound generating device (100) according to any one of claims 5 to 8, wherein, There is a gap between at least one of the structural member (120) and the vibrating member (110) and the end of the switching portion (135).

10. The sound generating device (100) according to any one of claims 1 to 9, wherein, At least two of the structural members (120) enclose to form a receiving cavity (150), and both the vibrating member (110) and the connecting member (130) are disposed in the receiving cavity (150); A sound insulation member (160) is disposed between adjacent two of the structural members (120), and the middle portion of the sound insulation member (160) protrudes towards the vibrating member (110), dividing the receiving cavity (150) into at least two chambers, and the at least two chambers correspond to the at least two structural members (120) one by one; Wherein, the sound insulation member (160) is a flexible sound insulation member (160), or the sound insulation member (160) is flexibly connected to the corresponding structural member (120).

11. The sound generating device (100) according to claim 10, wherein, The sound insulation member (160) includes a base layer (161) and a sound absorption layer (162), the base layer (161) is connected to the corresponding structural member (120), and the sound absorption layer (162) is located on the side of the base layer (161) close to the vibrating member (110).

12. The sound generating device (100) according to claim 10 or 11, wherein, The adjusting member (140) is located on the side of the sound insulation member (160) away from the vibrating member (110), a through hole (163) is formed on the sound insulation member (160), and the adjusting member (140) is connected to the connecting member (130) through the through hole (163).

13. The sound generating device (100) according to any one of claims 1 to 12, wherein, The flexible portion (136) forms a sealing cavity (137); The adjusting member (140) is a pump body, the pump body is communicated with the sealing cavity (137), and the pump body is configured to pump fluid into the sealing cavity (137) to switch the corresponding connecting member (130) to a rigid state, and pump the fluid out of the sealing cavity (137) to switch the corresponding connecting member (130) to a flexible state.

14. The sound generating device (100) according to any one of claims 1 to 13, wherein, The vibrating member (110) includes a vibrating body (113) and at least one piezoelectric body (112), the piezoelectric body (112) is connected to the vibrating body (113), and the vibrating body (113) is connected to the connecting member (130); Wherein, the piezoelectric body (112) is configured to generate the vibration, the elastic modulus of the vibrating body (113) is less than the elastic modulus of the piezoelectric body (112), and the piezoelectric body is configured to amplify the amplitude of the vibration.

15. A vehicle, comprising: A vehicle body (200), including a structural plate (210) and a decorative plate (220); An electronic device (300), connected to the vehicle body (200); The sound generating device (100) according to any one of claims 1 to 14, wherein there are two structural members (120) in the sound generating device (100), the two structural members (120) are respectively the structural plate (210) and the decorative plate (220), and the adjusting member (140) is electrically connected to the electronic device (300).

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