CN220349601U - Car door sounding device, voice interaction system and vehicle - Google Patents

Abstract

The utility model discloses a vehicle door sounding device, a voice interaction system and a vehicle, wherein the vehicle door sounding device comprises: a door body (1) for separating the carriage from the outside; at least one excitation device (2) is connected to one side of the door body (1) close to the carriage, and the excitation device (2) drives the door body (1) to vibrate and sound. The utility model discloses a vehicle door sounding device, a voice interaction system and a vehicle, which are used for optimizing the structure and improving the acoustic performance.

Description

Car door sounding device, voice interaction system and vehicle

Technical Field

The utility model relates to the technical field of vehicles, in particular to a vehicle door sounding device, a voice interaction system and a vehicle.

Background

In the current automobile industry, part of designers consider the efficiency and convenience of communication dialogue of the driver when the driver encounters the outside personnel, and an inside-outside voice interaction system is integrated on the basis of the existing vehicle, so that the system can ensure that the driver does not need to drive a door or lower a window when the driver encounters the communication dialogue of the outside personnel, and the communication efficiency and the personal safety of the driver are ensured.

At present, most of sound-producing devices of the systems adopt traditional loudspeakers except for sound-pickup equipment, signal processing and electric appliance control, the loudspeakers generally adopt a vibrating diaphragm or cone excitation mode to produce sound, when the loudspeakers are installed, corresponding sound-producing holes (or other structures for preventing sound from being transmitted) are required to be arranged at sound-producing positions of a vehicle, for example, the loudspeakers are directly leaked outside the vehicle (or can extend out of the vehicle body through some mechanical driving devices), the voices of personnel in the vehicle are transmitted to personnel outside the vehicle through the outward-release mode, and the design can lead to complex vehicle structures and also influence the beauty; for example, the loudspeaker is hidden in the vehicle body, and sound waves are transmitted in a mode of opening sound holes in the vehicle body, so that the design can cause the problems of water seepage, dust accumulation and the like. In addition, the traditional horn can be protected from damage, and the upper limit of the volume which can be emitted by the horn is smaller because of the limited size of the horn, so that the problem that the sound is covered in some noisy environments can be caused.

Accordingly, there is a need for an improvement over the prior art to overcome the deficiencies described in the prior art.

Disclosure of Invention

The utility model aims to provide a vehicle door sounding device, a voice interaction system and a vehicle, which optimize the structure of the sounding device and improve the acoustic performance of the sounding device.

In order to solve the above technical problem, in a first aspect, the present utility model provides a vehicle door sounding device, including:

the door body separates the carriage from the outside;

at least one excitation device is connected to one side of the door body, which is close to the carriage, and the excitation device drives the door body to vibrate and sound.

Preferably, the door body comprises an outer skin separating the cabin from the outside, and the excitation device is connected to a side of the outer skin adjacent to the cabin.

Preferably, the vibration direction of the excitation device is perpendicular to the plane of the outer skin.

Preferably, the exciting device comprises an exciter connected with the outer skin, and the exciter drives the door body to vibrate and sound.

Preferably, the exciter comprises a shell connected with the outer skin, an electromagnetic driving piece connected with the shell, a magnetic piece movably arranged in the electromagnetic driving piece and an elastic piece connected between the shell and the magnetic piece, wherein the electromagnetic driving piece drives the magnetic piece to vibrate.

Preferably, the exciter assembly further comprises a shield box connected to the outer skin, the exciter being disposed within the shield box.

Preferably, the shielding box comprises a box body with a containing cavity and a first cover body connected with the box body, the box body is connected with the outer skin, and the exciter is arranged in the containing cavity and connected with the box body.

Preferably, a first gasket is connected between the case and the actuator.

In a second aspect, the present utility model further provides a voice interaction system, applied to a vehicle, including:

the sound pickup device comprises at least one first sound pickup device for collecting sound signals in a carriage and at least one second sound pickup device for collecting external sound signals;

the door sound emitting device according to the first aspect, for transmitting the sound signal collected by the sound pickup device to the interior of the vehicle cabin and the outside;

and the control device is coupled with the pickup device and the car door sounding device and is used for controlling information interaction between the pickup device and the car door sounding device.

In a third aspect, the present utility model also provides a vehicle comprising a door sound emitting device as described in the first aspect; or comprises a voice interaction system for a vehicle as described in the third aspect.

Compared with the prior art, the utility model has the following advantages:

according to the vehicle door sound production device, the door body is used as a traditional loudspeaker diaphragm or cone, the excitation device is adopted to excite the door body to vibrate, so that the door body is used as a part of vibration to produce sound, the whole sound production device is hidden in the inner space of the vehicle door, auxiliary structures such as sound holes and the like are prevented from being processed on the vehicle under the traditional loudspeaker application scene, the beauty of the vehicle is ensured, the vehicle is prevented from being changed to the greatest extent, the structure of the sound production device is optimized, and meanwhile, the exciter is not exposed, so that the reliability of the sound production device is improved; compared with the traditional loudspeaker limited by the size and the structure of the vibrating diaphragm (such as the requirements of the vibrating diaphragm bending ring, the elastic coefficient and the like), the size and the structure of the exciter are smaller, the natural frequency of the system can be reduced, the vibration acceleration can be improved, the vibration quantity can be further improved, relatively good broadband and bass effects can be realized on the acoustic performance, and meanwhile, the size of the automobile door is far larger than that of a loudspeaker monomer, the automobile door has a larger radiation surface, larger sound field area and volume can be realized, and the acoustic performance of the sounding device is improved.

According to the interaction system, a mode that a traditional loudspeaker uses a vibrating diaphragm to excite sound waves is overturned, the vibration of the automobile door is excited by the vibration of the exciter to make a sound, the existing automobile body structure is fully utilized, and the inside and outside voice interaction of the automobile is realized; when the personnel inside and outside the vehicle communicate, the personnel inside the vehicle do not need to get off the vehicle, and the safety of the personnel inside the vehicle can be ensured under the condition of encountering strangers or strange environments.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present utility model, and are not particularly limited. Those skilled in the art with access to the teachings of the present utility model can select a variety of possible shapes and scale sizes to practice the present utility model as the case may be. In the drawings:

FIG. 1 is a schematic diagram of a door sound emitting device of the present utility model;

FIG. 2 is a schematic view of the structure of one side of the outer skin in the present utility model;

FIG. 3 is a schematic view of the structure of the other side of the outer skin in the present utility model;

FIG. 4 is a schematic view of the installation of the excitation device of the present utility model;

FIG. 5 is a schematic view of the shield can and outer skin of the present utility model;

FIG. 6 is an exploded view of the excitation device of the present utility model;

FIG. 7 is a sectional view of the installation of the excitation device of the present utility model;

FIG. 8 is an exploded view of the actuator of the present utility model;

FIG. 9 is a cross-sectional view of an actuator of the present utility model;

FIG. 10 is a schematic diagram of the coupling of a magnetic member to a coil in an embodiment of the utility model;

FIG. 11 is a schematic illustration of the coupling of a magnetic element to a coil in accordance with another embodiment of the present utility model;

FIG. 12 is a schematic diagram of a voice interaction system according to the present utility model;

FIG. 13 is a schematic flow chart of the utility model in which the person inside the carriage speaks for the reception of the outside person;

fig. 14 is a schematic flow chart of the utility model in which an outside person speaks into the car interior person reception.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, shall fall within the scope of the utility model.

It will be understood that when an element is referred to as being "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. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, a door sound generating apparatus corresponding to a preferred embodiment of the present utility model includes a door body 1 and an exciting device 2.

The door body comprises a framework structure and a skin structure connected with the framework structure. In general, as shown in fig. 2 and 3, the skin structure includes an outer skin 11 for separating a cabin from the outside, the outer skin 11 includes a first face portion 111 near the cabin side and a second face portion 112 near the outside side, and the excitation device 2 is connected to the first face portion 111 of the outer skin 11, and vibrates by the excitation device 2 to drive the vibration sound of the outer skin 11.

As shown in particular in fig. 4, the exciter arrangement 2 comprises an exciter 21 and a shielding box 22, the exciter 21 being connected to the outer skin 11 via the shielding box 22. The exciter 21 serves as a vibration source, and when in vibration, the door body can be excited to vibrate simultaneously, and sound waves generated by the vibration can be transmitted to the outside of the vehicle or the inside of the vehicle. Preferably, the vibration direction of the excitation device 2 is perpendicular to the plane of the outer skin 11, so that the maximum amplitude is transmitted to the door body 1, and the energy transmission efficiency is ensured. As shown in fig. 8 and 9, the actuator 21 includes a housing connected to the outer skin 11, an electromagnetic driving member connected to the housing, a magnetic member 216 movably provided in the electromagnetic driving member, an elastic member 217 connected between the housing and the magnetic member 216, and magnetic conductive members 218 connected to both ends of the magnetic member 216. The housing includes a housing 211 and second and third covers 212 and 213 connected to both ends of the housing 211, the housing 211 is ring-shaped, having a cavity 214 with both ends open, and the second and third covers 212 and 213 are respectively disposed on both end openings of the cavity 214, thereby closing the cavity 214. It should be noted that, in a preferred embodiment where the two ends of the housing 211 are connected with the cover bodies for easy installation, in other embodiments, the housing 211 may be provided with an opening at only one end, so that only one cover body is needed to close the cavity, which is not limited herein. The electromagnetic driving member comprises a coil 215, the coil 215 is arranged in a cavity 214 of the housing 211 and is fixedly connected with the housing 211, the magnetic member 216 is movably arranged in the coil 215, two ends of the magnetic member 216 are respectively connected with a magnetic conducting member 218 so as to conduct a magnetic field, and the magnetic member 216 is driven to vibrate by supplying alternating current to the coil 215. As shown in fig. 10, for example, the magnetic member 216 is configured by a single-coil design, where the magnetic member 216 includes at least two first magnets 2161 and second magnets 2162 that are connected to each other, the first magnets 2161 and the second magnets 2162 are separated by a magnetizer 2163, two adjacent magnetic poles of the first magnets 2161 and the second magnets 2162 have the same polarity, and the coil 215 is sleeved outside the first magnets 2161, the second magnets 2162 and the magnetizer 2163, so that when the coil 215 is energized, the stress directions of the first magnets 2161 and the second magnets 2162 are consistent, and the magnetic member 216 moves in the same direction. It should be noted that, in the present embodiment, the magnetic member 216 is a split structure, that is, the first magnet 2161, the magnetizer 2163, and the second magnet 2162 are connected by gluing, or an integral structure, that is, formed by integrally magnetizing a magnetic material, which is not limited herein. For example, as shown in fig. 11, in a dual-coil, single-magnet design, the coil includes a first coil 2151 and a second coil 2152, the magnetic member 216 includes a third magnet 2164, the first coil 2151 and the second coil 2152 are respectively sleeved at two ends of the N pole and the S pole of the third magnet 2164 at intervals, and when the first coil 2151 and the second coil 2152 respectively supply currents in opposite directions, the stress directions of the third magnet 2164 are consistent, so that the magnetic member 216 moves in the same direction.

The elastic member 217 is coupled between the housing 211 and the magnetic member 216 to provide elastic force and restoring force for the vibration process. The number of the elastic members 217 may be 1 or 2, and preferably in this embodiment, the number of the elastic members 217 is two, namely a first elastic member and a second elastic member, which are respectively disposed at two ends of the magnetic member 216, so that the magnetic member 216 is stressed more uniformly during vibration, no rolling vibration occurs, better stability and larger restoring force. As a preferred embodiment, as shown in fig. 8, the elastic member 217 includes a first elastic member 2171, a second elastic member 2172 surrounding the first elastic member 2171, and a plurality of connecting arms 2173 connected between the first elastic member 2171 and the second elastic member 2172, the second elastic member 2172 is connected to the housing 211, the first elastic member 2171 is connected to the magnetic member 216, and the connecting arms 2173 are configured to elastically deform when the magnetic member 216 vibrates, so that the first elastic member 2171 moves together with the magnetic member 216. Specifically, a magnetic conductive member 218 is connected between the first elastic member 2171 and the magnetic member 216, and a second spacer 219 is connected between the first elastic member 2171 and the magnetic conductive member 218 to provide a space in the Z-axis direction for the vibration of the elastic member 217.

As shown in fig. 5, a shield case 22 is connected to the outer skin 11, and an exciter 21 is provided inside the shield case 22. The shielding box 22 is made of ferromagnetic materials containing iron, drill and nickel, and has the main functions of placing and protecting the vibration exciter 21, and the ferromagnetism of the shielding box 22 can play a role of magnetic shielding and is used for protecting the magnetic field inside the exciter from being disturbed by the outside, so that the vibration effect is ensured. In the present embodiment, as shown in fig. 6 and 7, the shielding case 22 includes a case 221 having a receiving cavity 223, and a first cover 222 connected to the case 221, the case 221 being connected to the outer skin 11, and the exciter 21 being provided in the receiving cavity 223 and connected to the case 221. Preferably, the box 221 is rigidly connected to the outer skin 11, which may be bolted or riveted, in order to minimize the energy attenuation of the exciter assembly 2 to the door 1. The connection mode of the exciter 21 and the box body 221 can be bolt connection or riveting, and the shell 211 of the exciter 21 is preferably fixed on the box body 221 by adopting bolt connection so as to facilitate maintenance and disassembly of the exciter 21. A first spacer 23 is connected between the case 221 and the exciter 21, and is used for providing a certain pretightening force during installation, so that gaps between the exciter 21 and the shielding box 22 due to long-term vibration are prevented, and noise is caused. Preferably, the material of the first pad 23 is rubber or silica gel, so as to minimize the damping of vibration.

As shown in fig. 12, the present utility model also provides a voice interaction system for a vehicle, including a sound pickup device 3, a door sound emitting device 4, and a control device 5.

The sound pickup apparatus includes, but is not limited to, a microphone apparatus, and the main function is to collect human voice and to perform signal conversion. In order to realize the voice interaction inside and outside the vehicle, the pickup device at least comprises a first pickup device and a second pickup device, wherein the first pickup device can be arranged at any position inside a carriage and is used for collecting the sound signals inside the carriage and converting the sound signals into electric signals to be transmitted to the control device 5 for signal processing; the second pickup device may be disposed at any position outside the cabin for collecting external sound signals, and converting the external sound signals into electrical signals for transmission to the control device 5 for signal processing. Preferably, the first sound pickup apparatus and the second sound pickup apparatus are mounted at positions close to the position where the sound signal is collected.

The vehicle door sound generator 4 adopts the above structure, the excitation device 2 is mounted on the side of the outer skin 11 of the door body 1, which is close to the carriage, and the door body 1 is driven to vibrate and sound by the excitation device 2. The cable of the excitation device 2 is connected with the control device 5 through a circuit to realize power supply and control of vibration frequency, and the sound collected by the pickup device 3 is transmitted to the inside and the outside of the carriage. The number of installed excitation devices 2 is not limited and the specific number of settings may be determined based on the design and acoustic requirements of the actual vehicle.

The control device 5 is coupled to the sound pickup device 3 and the door sound emitting device 4, and is used for controlling information interaction between the sound pickup device 3 and the door sound emitting device 4. The control device 5 may be installed in a control system of the vehicle or integrated on a main board, but is not limited to the above two forms. Specifically, the control device 5 includes, but is not limited to, performing the following operations:

first: receiving sound signals collected by the first sound pickup device and the second sound pickup device, and storing the sound signals into a data file which can be processed by software;

second,: the sound signal is subjected to filtering, noise reduction and other treatments, so that the environmental noise doped in the human voice is filtered, and the signal is clear;

third,: the processed sound signal is amplified, and a driving signal is sent out to drive the exciting device 2 to vibrate, so that the door body 1 is excited to vibrate and sound.

The utility model also provides a vehicle, which is provided with the vehicle door sounding device 4; alternatively, the voice interaction system for vehicles described above is applied.

As shown in fig. 13, when the cabin interior personnel speak for outside personnel reception:

when people in the carriage speak, the sound wave physical signals are collected by the first pickup device and converted into electric signals, the electric signals are transmitted to the control device 5, and voice software in the control device 5 carries out the processes of filtering, noise reduction and the like on the voice signals, so that the environmental noise doped in the voice is filtered, and the signals are clear; the processed signal is output again, the power amplifier driving module on the control device 5 amplifies the signal and transmits the amplified signal to the exciting device 2 arranged on the door body 1, the door body 1 is driven by the exciting device 2 to vibrate, and the amplified signal is transmitted to outside personnel through sound waves.

As shown in fig. 14, an outside person speaks into the car interior person reception:

when an external person speaks, the sound wave physical signal is collected by the second pickup device and is converted into an electric signal, the electric signal is transmitted to the control device 5, and voice software in the control device 5 carries out processing such as filtering and noise reduction on the voice signal, so that the environmental noise doped in the voice is filtered, and the signal is clear; the processed signals are output again, the power amplifier driving module on the control device 5 amplifies the signals and transmits the amplified signals to the exciting device 2 arranged on the door body 1, the exciting device 2 drives the door body 1 to vibrate, and the sound waves are transmitted to personnel in the carriage.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but instead should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are incorporated herein by reference for the purpose of completeness. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to forego such subject matter, nor should the applicant be deemed to have such subject matter not considered to be part of the disclosed subject matter.

Claims (10)

1. A vehicle door sound emitting device, comprising:

a door body (1) for separating the carriage from the outside;

at least one excitation device (2) is connected to one side of the door body (1) close to the carriage, and the excitation device (2) drives the door body (1) to vibrate and sound.

2. The vehicle door sound-emitting device according to claim 1, characterized in that the door body (1) comprises an outer skin (11) separating the cabin from the outside, the excitation device (2) being connected to the side of the outer skin (11) close to the cabin.

3. The door sound device according to claim 2, characterized in that the vibration direction of the excitation device (2) is perpendicular to the plane of the outer skin (11).

4. The vehicle door sound production device according to claim 2, characterized in that the excitation device (2) comprises an exciter (21) connected to the outer skin (11), the exciter (21) driving the door body (1) to vibrate for sound production.

5. The door sound device according to claim 4, wherein the actuator (21) comprises a housing connected to the outer skin (11), an electromagnetic driving member connected to the housing, a magnetic member (216) movably provided in the electromagnetic driving member, and an elastic member (217) connected between the housing and the magnetic member (216), the electromagnetic driving member driving the magnetic member (216) to vibrate.

6. The door sound device according to claim 4, characterized in that the excitation device (2) further comprises a shielding box (22) connected to the outer skin (11), the exciter (21) being arranged in the shielding box (22).

7. The door sound generating apparatus according to claim 6, wherein the shielding case (22) includes a case (221) having a receiving cavity (223) and a first cover (222) connected to the case (221), the case (221) is connected to the outer skin (11), and the exciter (21) is provided in the receiving cavity (223) and connected to the case (221).

8. The door sound device according to claim 7, characterized in that a first gasket (23) is connected between the case (221) and the actuator (21).

9. A voice interactive system for a vehicle, comprising:

a sound pickup device (3) including at least one first sound pickup device for collecting sound signals inside the vehicle cabin and at least one second sound pickup device for collecting external sound signals;

the door sound emitting device (4) according to any one of claims 1 to 8, for transmitting sound signals collected by the sound pickup device (3) to the interior of a vehicle cabin and the outside;

and the control device (5) is coupled with the pickup device (3) and the vehicle door sounding device (4) and is used for controlling information interaction between the pickup device (3) and the vehicle door sounding device (4).

10. A vehicle comprising a door sound emitting device (4) according to any one of claims 1-8; or comprises a voice interaction system for a vehicle according to claim 9.