Electronic device and vehicle

Abstract

The utility model discloses an electronic device and a vehicle, and relates to the technical field of electronic devices. The electronic device comprises a first piezoelectric component, a second piezoelectric component, an audio circuit and a first controller. The first piezoelectric assembly and the second piezoelectric assembly are electrically connected with the first controller. The first piezoelectric component and the second piezoelectric component are mounted on a target piece of target equipment, and the first piezoelectric component is electrically connected with the audio circuit; the first piezoelectric component and the second piezoelectric component generate passive vibration under the vibration effect of the corresponding target piece, the first piezoelectric component is configured to generate a first electric signal in response to the passive vibration, and the second piezoelectric component is configured to generate a second electric signal in response to the passive vibration; the first controller is configured to generate a control instruction in response to at least one of the first electrical signal and the second electrical signal.

Description

Technical Field

[0001] This application relates to the technical field of electronic devices, and particularly to an electronic device and a vehicle. Background Art

[0002] Surface sensing technology is a cutting-edge technical field. By using surface sensing technology, external information can be obtained in a timely manner. For example, a piezoelectric ceramic oscillator can be used as a sensor to achieve surface sensing through the piezoelectric ceramic oscillator. Summary of the Utility Model

[0003] An embodiment of this application provides an electronic device. The electronic device includes a first controller, a first piezoelectric component and a second piezoelectric component both electrically connected to the first controller, and an audio circuit electrically connected to the first piezoelectric component. This can improve the sensitivity and uniformity of vibration sensing for a target component with a relatively large area, and can also increase the number of target components that can detect vibration, thereby improving the comprehensiveness of vibration detection for the target device.

[0004] Another embodiment of this application provides an electronic device. The structures or properties of the first piezoelectric component and the second piezoelectric component are different, so that the first piezoelectric component can be used not only to sense the vibration of the target component, but also to excite the target component to generate vibration. Thus, the first piezoelectric component can be used to achieve dual functions, and the second piezoelectric component can be used to improve the uniformity of vibration sensing for the target component, while helping to reduce costs.

[0005] Another embodiment of this application provides an electronic device. A set of sensing components is arranged on a first target component, and an independent piezoelectric component is arranged on a second target component. This can reduce the interference between the sensing components and the independent piezoelectric component, and improve the accuracy of vibration sensing for the target component; and the independent piezoelectric component can be used to control the working state of the first piezoelectric component in the sensing components.

[0006] Another embodiment of this application provides an electronic device. The second piezoelectric component in the sensing components and the second piezoelectric component as an independent piezoelectric component are both electrically connected to the first controller through the same second interface. Thus, the number of connected piezoelectric components can be increased without increasing the number of I / O interfaces of the controller, thereby improving the sensitivity, uniformity and comprehensiveness of vibration detection for the first target component, and helping to streamline the layout of the wire harness.

[0007] Another embodiment of the present application provides an electronic device. In this device, a first piezoelectric component and a first controller are electrically connected through a switching circuit. The switching circuit can be used to switch the connection state between the first piezoelectric component and the first controller, so that the first piezoelectric component can be in different working states, that is, the first piezoelectric component can be in different working states of being able to detect vibration or generate vibration.

[0008] Another embodiment of the present application provides an electronic device. In this device, the first piezoelectric component is electrically connected to the switching circuit through a signal processing circuit. During the process of transmitting a third electrical signal to the first piezoelectric component through the switching circuit, the signal processing circuit can perform various processes on the third electrical signal, which is beneficial to improving the sound quality of the sound generated by driving a target component to vibrate using the first piezoelectric component or enhancing the auditory experience.

[0009] Another embodiment of the present application provides an electronic device. In this device, the first piezoelectric component and / or the second piezoelectric component are electrically connected to the first controller through an operational amplifier circuit. The operational amplifier circuit can process the first electrical signal and / or the second electrical signal so that the magnitudes of the first electrical signal and the second electrical signal are both within a suitable range, thereby reducing the possibility of the first controller being broken down and also reducing the possibility that the first electrical signal and / or the second electrical signal are too weak to be recognized by the first controller.

[0010] Another embodiment of the present application provides an electronic device and a vehicle. By arranging the electronic device on at least one of the vehicle body panel, interior trim, and vehicle components, the first piezoelectric component can be used to drive the vibration of the vehicle body panel, interior trim, etc. to generate sound, and the first piezoelectric component and the second piezoelectric component can also be used to detect the vibration of some components in the vehicle, such as detecting the knocking vibration of the vehicle body panel. Thus, human-vehicle interaction can be realized based on the inner and outer surfaces of the vehicle without changing the shape or component styling of the vehicle.

[0011] Another embodiment of the present application provides a vehicle. In this vehicle, the first piezoelectric component and the second piezoelectric component are respectively installed in different regions of the vehicle. The first piezoelectric component can be used to drive the vehicle body to vibrate and generate sound, and the second piezoelectric component can be used to increase the vehicle body sensing area and sensing uniformity, while also being beneficial to cost reduction.

[0012] Another embodiment of the present application provides a vehicle. In this vehicle, the first piezoelectric component and the second piezoelectric component installed on the vehicle door are respectively arranged on both sides of the reinforcement of the vehicle door, thereby improving the sensitivity and uniformity of vibration sensing at the vehicle door.

[0013] In the technical solution of the embodiment of the present application, since the electronic device includes a first piezoelectric component and a second piezoelectric component, the first piezoelectric component and the second piezoelectric component can be arranged on the target component of the target device, and the first piezoelectric component and the second piezoelectric component can be connected to the target component in different connection manners, so that the vibration generated by the target component can be detected by the first piezoelectric component and the second piezoelectric component. The first piezoelectric component and the second piezoelectric component can be simultaneously arranged on the target component with a relatively large area, and the second piezoelectric component can be arranged on some other target components. In this way, not only the sensitivity and accuracy of the vibration detection of the target component with a relatively large area can be improved, but also the number of target components capable of detecting vibration can be increased, thereby improving the comprehensiveness of the vibration detection of the target device.

[0014] In the second aspect of the implementation manner of the present application, the vehicle provided by the embodiment of the present application includes: a vehicle body, a vehicle controller, and the electronic device provided in any one of the above embodiments. Among them, the vehicle body includes a plurality of vehicle body panels and a plurality of interior trim parts; the vehicle controller is installed on the vehicle body and is used to control the operation of the vehicle; the first piezoelectric component and the second piezoelectric component are respectively arranged on the vehicle body panel and / or the interior trim part, and the first controller is electrically connected to the vehicle controller. Description of the Drawings

[0015] By reading the detailed description of the preferred implementation manners below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred implementation manners and are not considered to be a limitation of the present application. Moreover, in all the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0016] Figure 1 Schematic diagram of the composition structure of the electronic device provided by the embodiment of the present application Figure 1 ;

[0017] Figure 2 Schematic diagram of the composition structure of the electronic device provided by the embodiment of the present application Figure 2 ;

[0018] Figure 3 Schematic diagram of the structure of the switching circuit in the electronic device provided by the embodiment of the present application Figure 1 ;

[0019] Figure 4 Schematic diagram of the structure of the switching circuit in the electronic device provided by the embodiment of the present application Figure 2 ;

[0020] Figure 5 Schematic diagram of the structure of the switching circuit in the electronic device provided by the embodiment of the present application Figure 3 ;

[0021] Figure 6Schematic diagram of the structure of the first piezoelectric component in the electronic device provided by the embodiment of the present application;

[0022] Figure 7 Schematic diagram of the structure of the second piezoelectric component in the electronic device provided by the embodiment of the present application;

[0023] Figure 8 Schematic diagram of the installation of the electronic device provided by the embodiment of the present application on the target device;

[0024] Figure 9 Schematic diagram of the installation of the electronic device provided by the embodiment of the present application on the target part in the target device.

[0025] Explanation of reference numerals:

[0026] 1 - First piezoelectric component; 11 - First piezoelectric element; 12 - First substrate; 13 - Connection area; 2 - Second piezoelectric component; 21 - Independent piezoelectric component; 22 - Second piezoelectric element; 23 - Second substrate; 3 - First controller; 31 - First interface; 32 - Second interface; 4 - Switching circuit; 41 - First switch; 42 - Zener diode; 43 - Second switch; 44 - Signal processing circuit; 5 - Operational amplifier circuit; 6 - Power amplifier circuit; 7 - Vehicle body; 71 - Door; 72 - Reinforcing member; 81 - First target part; 82 - Second target part; 9 - Second controller; 10 - Audio module. Detailed implementation manners

[0027] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and the above accompanying drawings of this application are intended to cover non-exclusive inclusion.

[0029] In the description of the embodiments of the present application, technical terms such as "first", "second", "third", etc. are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order or primary-secondary relationship of the indicated technical features. In the description of the embodiments of the present application, "a plurality of" means more than two, unless otherwise specifically defined.

[0030] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0032] In the description of the embodiments of the present application, the orientation or position relationship indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", and "circumferential" are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0033] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0034] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0035] Surface sensing technology enables devices and apparatuses to collect signals, and thus can use the collected signals to control the devices and apparatuses or achieve human-machine interaction. For example, surface sensing can be achieved by sensing the passive vibrations generated by some components in the devices and apparatuses. And the sensing of passive vibrations requires detecting the passive vibrations generated by the devices and apparatuses. In the related art, due to the limited number of interfaces of the controller, only devices that can achieve surface sensing can be set for some components on the vehicle, which limits the more comprehensive and uniform surface sensing of the vehicle.

[0036] For the convenience of description, the following takes a vehicle as an example to illustrate the electronic device provided in the embodiment of the present application.

[0037] How to use the least number of wire harnesses and interfaces to set devices for detecting vibrations on the entire vehicle body so that the entire vehicle body has the function of vibration sensing is a technical problem to be solved. Because the body control module (such as the body control domain controller) in the vehicle usually does not have many input / output (I / O) interfaces, and the more devices for detecting vibrations are set on the vehicle body, the more I / O interfaces are required. As an integrated controller, the domain controller manages and controls multiple ECUs (Electronic Control Unit, ECU) in the automotive electronic system to achieve the integrated control and optimization of the vehicle system. And the more I / O interfaces are set for each ECU, the more complex the wiring layout will be, and the corresponding cost will also be higher.

[0038] For example, setting devices for detecting vibrations on 12 independent panels or parts outside the vehicle body usually requires 12 I / O interfaces, that is, an additional 24-wire interface on the body control module. If an acceleration vibration sensor is used, more wires will be required because the acceleration vibration sensor needs to output a Serial Peripheral Interface (SPI), and each SPI interface usually requires 4 wires, and the SPI signal transmission length is limited and not suitable for vibration sensing of the entire vehicle body.

[0039] For another example, piezoelectric devices can be used to detect the vibration of the entire vehicle body. A piezoelectric device is a component made of piezoelectric material, which has piezoelectric effect and inverse piezoelectric effect. The piezoelectric effect means that when a piezoelectric device generates mechanical deformation under an external force, an electrical signal will be generated; the inverse piezoelectric effect means that a piezoelectric device can generate mechanical deformation under the drive of an electrical signal. For example, when an electric field with the same polarization direction as the piezoelectric device is applied to the piezoelectric device, the action of the electric field increases the polarization intensity. At this time, the distance between the positive and negative bound charges in the piezoelectric device also increases, that is, the piezoelectric device generates an extensional deformation along the polarization direction. Similarly, if the direction of the applied external electric field is opposite to the polarization direction, the piezoelectric device generates a contraction deformation along the polarization direction. Therefore, by arranging piezoelectric devices on equipment and devices, not only can the vibration be detected, but also an electric signal can be applied to the piezoelectric device to drive the equipment and devices to generate vibration by using the piezoelectric device, so as to realize sound generation and the like. However, setting 12 piezoelectric devices on the vehicle body requires 12 I / O interfaces, that is, 24 wire interfaces, and it is not easy to implement 24 wires for a conventional controller module.

[0040] Therefore, an electronic device is needed that can realize vibration perception of more panels or parts and can reduce the interfaces required for vibration detection devices.

[0041] Referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , Figure 1 shows a schematic structural diagram of the composition of the electronic device provided by the embodiment of the present application Figure 1 , Figure 2 is a schematic structural diagram of the composition of the electronic device provided by the embodiment of the present application Figure 2 , Figure 3 、 Figure 4 and Figure 5 respectively show schematic structural diagrams of different switching circuits in the electronic device provided by the embodiment of the present application. The electronic device provided by the embodiment of the present application includes: a first piezoelectric component 1, a second piezoelectric component 2, an audio circuit, and a first controller 3. Among them, both the first piezoelectric component 1 and the second piezoelectric component 2 are electrically connected to the first controller 3; the first piezoelectric component 1 and the second piezoelectric component 2 are installed on a target component of a target device, and the first piezoelectric component 1 is electrically connected to the audio circuit; the first piezoelectric component 1 and the second piezoelectric component 2 generate passive vibrations under the vibration action of the corresponding target component, the first piezoelectric component 1 is configured to generate a first electrical signal in response to the passive vibration, and the second piezoelectric component 2 is configured to generate a second electrical signal in response to the passive vibration; the first controller 3 is configured to generate a control instruction in response to at least one of the first electrical signal and the second electrical signal.

[0042] ​​In an embodiment of the present application, the first piezoelectric component 1 includes a first piezoelectric element 11 made of a piezoelectric material. The first piezoelectric component 1 can be configured to be a structure that can both generate vibrations autonomously and detect vibrations.

[0043] Exemplarily, the first piezoelectric component 1 is electrically connected to the first controller 3. An electrical signal is applied to the first piezoelectric component 1 under the control of the first controller 3, and the first piezoelectric component 1 can generate mechanical vibrations matching the applied electrical signal under the action of the electrical signal. For example, the first piezoelectric component 1 can be disposed on a target component of a target device. By applying an electrical signal to the first piezoelectric component 1, the first piezoelectric component 1 can drive the target component to generate vibrations, so that the target component can emit sounds. Or, when the target component is subjected to collisions, knocks, etc. and generates vibrations of different modes, the target component can drive the first piezoelectric component 1 to generate mechanical deformation, that is, the first piezoelectric component 1 generates passive vibrations under the vibrations of the target component. Then, the first piezoelectric component 1 can generate a first electrical signal matching the vibration mode of the target component.

[0044] In an embodiment of the present application, the second piezoelectric component 2 includes a second piezoelectric element 22 made of a piezoelectric material. The second piezoelectric component 2 can be configured to be a structure capable of detecting vibrations.

[0045] Exemplarily, the second piezoelectric component 2 is electrically connected to the first controller 3. The second piezoelectric component 2 can be disposed on a target component of a target device. When the target component is subjected to collisions, knocks, etc. and generates vibrations of different modes, the target component can also drive the second piezoelectric component 2 to generate mechanical deformation corresponding to the vibrations, that is, the second piezoelectric component 2 generates passive vibrations under the vibrations of the target component. The second piezoelectric component 2 can generate a second electrical signal matching the vibration mode of the target component.

[0046] In an embodiment of the present application, the first piezoelectric component 1 and the second piezoelectric component 2 can adopt piezoelectric components with different structures or different properties.

[0047] In the embodiments of the present application, for the first piezoelectric component 1 to be able to drive the target component to vibrate, it is necessary to enable the first piezoelectric component 1 to generate vibrations with a larger amplitude, that is, the piezoelectric performance of the first piezoelectric component 1 can be made higher than that of the second piezoelectric component 2. In some embodiments, the properties of the piezoelectric component include the capacitance value or dielectric constant of the piezoelectric element. For example, the capacitance value or dielectric constant of the first piezoelectric element 11 is greater than that of the second piezoelectric element 22. Exemplarily, the first piezoelectric component 1 and the second piezoelectric component 2 can be manufactured using different piezoelectric materials respectively. For example, the first piezoelectric element in the first piezoelectric component 1 can be selected from a piezoelectric material with a capacitance value greater than that of the second piezoelectric element in the second piezoelectric component 2. Or, the first piezoelectric element in the first piezoelectric component 1 can be selected from a piezoelectric material with a dielectric constant greater than that of the second piezoelectric element in the second piezoelectric component 2. In this way, when the same voltage is applied to the first piezoelectric component 1, the first piezoelectric component 1 can generate vibrations with a larger amplitude, so that the first piezoelectric component 1 can drive the target component to vibrate and make the target component produce a clearer and louder sound.

[0048] In some embodiments, the structure of the piezoelectric component may include one or more of the structure of the piezoelectric element, the area of the piezoelectric element, the connection method between the piezoelectric component and the target component, and the area ratio of the electrode on the piezoelectric element to the area of the piezoelectric element. Among them, the piezoelectric element can be made of a piezoelectric material, such as a piezoelectric ceramic sheet. For example, the number of stacked layers of the first piezoelectric element 11 is more than that of the second piezoelectric element 22. It can be understood that the vibration effect of a multi-layer piezoelectric ceramic sheet is better than that of a single-layer piezoelectric ceramic sheet, and the multi-layer structure can provide better vibration control and higher vibration efficiency. Another example is that the area of the first piezoelectric element 11 is larger than that of the second piezoelectric element 22. In this way, the second piezoelectric component 2 can be used to achieve good perception of vibration and reduce costs.

[0049] Exemplarily, the first piezoelectric component 1 and the second piezoelectric component 2 can be arranged on the target component in different connection manners. In some embodiments, the connection relationships between the first piezoelectric component 1 and the second piezoelectric component 2 and the target component are different. For example, a part of the first piezoelectric component 1 can be connected to the target component so that there is a gap between the first piezoelectric component 1 and the target component, thereby enabling the first piezoelectric component 1 to better drive the target component to vibrate when vibrating. One side surface of the second piezoelectric component 2 can be connected to the target component so that the second piezoelectric component 2 can better generate mechanical deformation along with the vibration of the target component to improve the accuracy of vibration detection of the second piezoelectric component 2. Alternatively, the connection area between the first piezoelectric component 1 and the target component is located on both sides or at the edge of the first substrate in the first piezoelectric component 1; the connection area between the second piezoelectric component 2 and the target component covers the center of the second substrate in the second piezoelectric component 2 or a part close to the center of the second substrate. In some embodiments, the corresponding connection manner can be selected according to the respective different structures or properties of the first piezoelectric component 1 and the second piezoelectric component 2.

[0050] In the embodiments of the present application, an audio circuit can be arranged in the electronic device, and the audio circuit is electrically connected to the first piezoelectric component 1. A voltage is applied to the first piezoelectric component 1 through the audio circuit and an audio signal is input so that the first piezoelectric component 1 generates vibration, thereby driving the target component to vibrate and enabling the target component to emit sound.

[0051] Exemplarily, as Figure 3 、 Figure 4 and Figure 5 shown, an audio module 10, a signal processing circuit 44, and a power amplification circuit 6 can be arranged in the audio circuit. The audio module 10 can be electrically connected to the signal processing circuit 44, and the first piezoelectric component 1 is electrically connected to the signal processing circuit 44 through the power amplification circuit 6. The signal processing circuit 44 can be electrically connected to the first controller 3 to control the working state or operating state of the audio circuit through the first controller 3. Alternatively, the signal processing circuit 44 can also be electrically connected to a controller in a device adopting this electronic device.

[0052] Among them, the audio module 10 can be a device with data storage function. For example, the audio module 10 can adopt a Flash Memory chip, and audio files prepared in advance can be stored in the Flash Memory chip serving as the audio module 10. The audio files can be music files, voice files, etc. The signal processing circuit 44 can adopt a digital signal processing (DSP) circuit. Then, various processes such as channel management, sound effect processing (such as echo, reverb, bass enhancement, etc.), and digital signal processing (such as filtering, equalization, dynamic range compression, etc.) can be performed on the third electrical signal corresponding to the audio file output from the audio module 10 through the signal processing circuit 44. The power amplification circuit 6 can include a power amplifier. The signal processing circuit 44 is electrically connected to the first piezoelectric component 1 and the power amplification circuit 6. The voltage and / or current of the third electrical signal processed by the signal processing circuit 44 can be adjusted through the power amplifier. For example, the voltage of the third electrical signal with a relatively small voltage processed by the signal processing circuit 44 can be amplified through the power amplifier, so that a larger voltage can be applied to the first piezoelectric element 11 in the first piezoelectric component 1, thereby enabling the first piezoelectric element 11 to generate vibrations with a larger amplitude, and further driving the target component to vibrate and make the target component emit sound. In this way, when it is necessary to drive the target component of the target device to vibrate through the first piezoelectric component 1 to make the target component emit sound, the first controller 3 can control the signal processing circuit 44 to call the audio file stored in the audio module 10, so that the first piezoelectric component 1 receives the third electrical signal corresponding to the audio file, thereby enabling the first piezoelectric component 1 to generate vibrations corresponding to the third electrical signal, and further driving the target component to vibrate to achieve music playback, voice broadcast, etc. through the vibration of the target component.

[0053] In the embodiment of the present application, the first controller 3 is a unit with arithmetic function. The first controller 3 can interpret computer instructions and process data in computer software. For example, the first controller 3 can include a Microcontroller Unit (MCU), etc. The MCU can be electrically connected to each part in the second controller 9 through input / output circuits, control circuits, etc. The second controller 9 can include an Electronic Control Unit (ECU). The first controller 3 can be included in the second controller 9. Different parts in the electronic device can be controlled by the MCU to perform their respective actions to achieve different functions.

[0054] Exemplarily, the first electrical signal generated by the first piezoelectric component 1 can be transmitted to the first controller 3, or the second electrical signal generated by the second piezoelectric component 2 can be transmitted to the first controller 3. And the first controller 3 is configured to generate corresponding control instructions according to the received first electrical signal and / or second electrical signal. And the first controller 3 can be electrically connected to the controller of the target device, so that the target device can be controlled to perform corresponding actions according to the control instructions generated by the first controller 3.

[0055] In the electronic device provided by the embodiment of the present application, since the electronic device includes the first piezoelectric component 1 and the second piezoelectric component 2, the first piezoelectric component 1 and the second piezoelectric component 2 can be arranged on the target part of the target device, and the first piezoelectric component 1 and the second piezoelectric component 2 can be connected to the target part in different connection manners, so that the vibration generated by the target part can be detected by the first piezoelectric component 1 and the second piezoelectric component 2. The first piezoelectric component 1 and the second piezoelectric component 2 can be simultaneously arranged on a relatively large target part, and the second piezoelectric component 2 can be arranged on some other target parts. In this way, not only the sensitivity and uniformity of vibration perception of the relatively large target part can be improved, but also the number of target parts that can detect vibration can be increased, so that the comprehensiveness of vibration detection of the target device can be improved. At the same time, the first piezoelectric component 1 is electrically connected to the audio circuit, and an electrical signal corresponding to the audio file can be applied to the first piezoelectric component 1 through the audio circuit, so that the target part can be driven to vibrate by the first piezoelectric component 1 to generate a sound corresponding to the audio file, and further the first piezoelectric component 1 can have dual working modes such as vibration perception and voice broadcast.

[0056] In some possible embodiments of the present application, as Figure 2 shown, at least one first piezoelectric component 1 and at least one second piezoelectric component 2 form a group of sensing components, and each group of sensing components is used to be arranged on a first target part 81, and the independent piezoelectric component 21 is used to be arranged on the second target part 82; the independent piezoelectric component 21 is at least one of the second piezoelectric components 2 that do not form a sensing component, and the first target part 81 and the second target part 82 are different target parts in the target device respectively.

[0057] In the embodiment of the present application, one first piezoelectric component 1 and one second piezoelectric component 2 can be used as a group of sensing components to improve the sensitivity and uniformity of vibration perception of the electronic device for the target part through the same group of sensing components.

[0058] Exemplarily, as Figure 2As shown, when the target device includes multiple target components, the first piezoelectric component 1 and the second piezoelectric component 2 can be simultaneously set for the first target component 81 among the multiple target components. For example, one first piezoelectric component 1 and one second piezoelectric component 2 can be respectively set in different areas on the same first target component 81. The first piezoelectric component 1 and the second piezoelectric component 2 set on the same first target component 81 are used as a group of sensing components. In this way, for the first target component 81, the vibration of the first target component 81 can be detected by at least two piezoelectric components.

[0059] In another example, only the independent piezoelectric component 21 can be set for the second target component 82 among the multiple target components. The independent piezoelectric component 21 is at least one of the second piezoelectric components 2 that do not form a sensing component among the multiple second piezoelectric components 2. For example, as Figure 2 shown, when the target device includes four first target components 81 and one second target component 82, one first piezoelectric component 1 and one second piezoelectric component 2 can be respectively set for each first target component 81, while only the second piezoelectric component 2 is set for the second target component 82.

[0060] In the above embodiments, since at least one first piezoelectric component 1 and at least one second piezoelectric component 2 are used as a group of sensing components and a group of sensing components is set on a first target component 81, the first piezoelectric component 1 can not only cause the first target component 81 to vibrate (such as generate sound), but also improve the sensitivity and accuracy of the vibration detection of the first target component 81 by using a group of sensing components.

[0061] In some possible embodiments of the present application, as Figure 2 shown, each first piezoelectric component 1 is respectively electrically connected to the first controller 3 through an independent first interface 31, and the multiple second piezoelectric components 2 are all electrically connected to the first controller 3 through the same second interface 32.

[0062] In the embodiments of the present application, the first piezoelectric component 1 can be respectively electrically connected to a first interface 31 on the first controller 3, while the multiple second piezoelectric components 2 are electrically connected to the same second interface 32 on the first controller 3. Among them, both the first interface 31 and the second interface 32 are I / O interfaces on the first controller 3.

[0063] Exemplarily, each first piezoelectric component 1 on multiple first target components 81 can be electrically connected to a first interface 31 respectively, while all second piezoelectric components 2 on these multiple first target components 81 are electrically connected to the same second interface 32. Or, the first piezoelectric component 1 on the first target component 81 can be electrically connected to the first interface 31, while the second piezoelectric component 2 on the first target component 81 and the independent piezoelectric component 21 on the second target component 82 are electrically connected to the same second interface 32. Or, several independent piezoelectric components 21 on multiple second target components 82 can be electrically connected to the same second interface 32. For example, as Figure 2 shown, four first piezoelectric components 1 can be electrically connected to four first interfaces 31 on the first controller 3 through wires respectively. And five second piezoelectric components 2 are electrically connected to the same second interface 32 on the first controller 3 through wires. In this way, when an electrical signal is generated by one of the second piezoelectric components 2 due to the vibration of the target component, if an electrical signal is also generated by one of the four first piezoelectric components 1 due to the vibration of the target component, it can be determined that the target component generating the vibration is the first target component 81 that causes the one first piezoelectric component 1 to generate the electrical signal. And when an electrical signal is generated by one of the second piezoelectric components 2 due to the vibration of the target component, if none of the four first piezoelectric components 1 generate an electrical signal, it can be determined that the target component generating the vibration is the second target component 82 that causes the one second piezoelectric component 2 to generate the electrical signal. Or, when some first piezoelectric components 1 generate vibrations in response to the third electrical signal and drive the target component to emit sound, the first controller 3 can be configured not to respond to the second electrical signal generated by the second piezoelectric component 2 provided on the target component that is in the sound-emitting state.

[0064] In the above embodiments, since both the second piezoelectric component 2 in the sensing component and the second piezoelectric component 2 as the independent piezoelectric component 21 are electrically connected to the first controller 3 through the same second interface 32, the number of I / O interfaces required for electrically connecting the second piezoelectric component 2 to the first controller 3 can be reduced, which is beneficial to simplifying the structure of the electronic device.

[0065] In some possible embodiments of the present application, the first controller is configured to determine the target component generating the vibration among multiple target components according to the first electrical signal received by each first interface, and / or according to the second electrical signal received by each second interface.

[0066] In the embodiments of the present application, as Figure 2As shown in the figure, when at least one first piezoelectric component 1 is respectively arranged for multiple first target components 81 in the target component, each first piezoelectric component 1 is electrically connected to the first controller 3 through an independent first interface 31. In this way, when any one of the first target components 81 is knocked, collided, etc. and generates vibration, the first target component 81 will drive the corresponding first piezoelectric component 1 to generate vibration, and the first piezoelectric component 1 arranged on the vibrating first target component 81 will generate a first electrical signal. The first electrical signal generated by the first piezoelectric component 1 is transmitted to the first controller 3 through an independent first interface 31, so that it can be determined which target component among the multiple first target components 81 generates vibration. That is, a definite association relationship is established between each first interface 31 of the first controller 3 and the corresponding first target component 81.

[0067] In the embodiment of the present application, as Figure 2 shown in the figure, when at least one first piezoelectric component 1 and at least one second piezoelectric component 2 are respectively arranged for multiple first target components 81 in the target component, and only the second piezoelectric component 2 is arranged for the second target component 82, each first piezoelectric component 1 is electrically connected to the first controller 3 through an independent first interface 31, and multiple second piezoelectric components 2 are all electrically connected to the first controller 3 through the same second interface. For example, multiple second piezoelectric components 2 are electrically connected to the same interface on the ECU, and then the interface of the ECU connecting the multiple second piezoelectric components 2 is electrically connected to a second interface on the first controller 3. In this way, when the second target component 82 is knocked, collided, etc. and generates vibration, the second target component 82 will drive the corresponding second piezoelectric component 2 to generate vibration, and the second piezoelectric component 2 arranged on the vibrating second target component 81 will generate a second electrical signal. The second electrical signal generated by the second piezoelectric component 2 is transmitted to the first controller 3 through the second interface 32. At this time, the first controller 3 cannot determine which first target component 81 or second target component 82 generates vibration. The first controller 3 needs to combine whether the first interface 31 receives a first electrical signal to determine the specific target component that generates vibration. For example, in the case where one of the second piezoelectric components 2 generates a second electrical signal due to the vibration of the second target component 82, if none of the other first piezoelectric components 1 generate a first electrical signal, it can be determined that the target component that generates vibration is the second target component 82 that causes the one second piezoelectric component 2 to generate a second electrical signal, so as to determine which target component among the multiple first target components 81 and second target components 82 generates vibration.

[0068] In the above embodiments, since the first controller 3 is configured to determine which one of the multiple target components generates vibration according to the received first electrical signal and / or second electrical signal, the specific position where the target device is struck or collided can be determined, and then it is convenient for the user to take corresponding measures according to the specific position where the target device is struck or collided.

[0069] In some possible embodiments of the present application, such as Figure 3 , Figure 4 and Figure 5 shown, the electronic device further includes a switching circuit 4, and the first piezoelectric component 1 is electrically connected to the first controller 3 through the switching circuit 4; the first controller 3 is configured to send a switching instruction to the switching circuit 4, and the switching circuit 4 makes the first piezoelectric component 1 and the first controller 3 in a first connection state or a second connection state in response to the switching instruction; wherein, in the first connection state, the first controller 3 can generate a control instruction in response to the first electrical signal; in the second connection state, the first controller 3 is configured to make the switching circuit 4 generate a third electrical signal to be sent to the first piezoelectric component 1, and the first piezoelectric component 1 generates vibration in response to the third electrical signal to drive the target component to generate vibration.

[0070] In the embodiments of the present application, the first piezoelectric component 1 can be set to a structure that can both generate mechanical deformation and generate a first electrical signal when deformed by an external force. Then, a corresponding switching circuit 4 can be provided in the electronic device, and the first piezoelectric component 1 can be made to be in different working states by controlling the switching circuit 4.

[0071] Exemplarily, the first piezoelectric component 1 can be electrically connected to the switching circuit 4, and the switching circuit 4 can be electrically connected to the first controller 3, so that the first piezoelectric component 1 is electrically connected to the first controller 3 through the switching circuit 4. And the first controller 3 can be configured to be able to send a switching instruction to the switching circuit 4, and the switching circuit 4 can be configured to perform a switching action corresponding to the switching instruction after receiving the switching instruction, so that the switching circuit 4 is in different states, so that the first piezoelectric component 1 and the first controller 3 are in different connection states.

[0072] For example, when it is necessary to make the first piezoelectric component 1 capable of detecting vibration, a first switching instruction can be sent by the first controller 3 to the switching circuit 4, so that the first piezoelectric component 1 and the first controller 3 are in the first connection state. At this time, when the target component is struck, collided, etc. to generate vibration and drive the first piezoelectric component 1 to generate mechanical deformation, the first piezoelectric component 1 generates a first electrical signal corresponding to the vibration of the target component. After the first controller 3 receives the first electrical signal, the first controller 3 can generate a control instruction corresponding to the first electrical signal according to the first electrical signal.

[0073] For another example, when it is necessary to enable the first piezoelectric component 1 to generate mechanical deformation to drive the target component to vibrate, the first controller 3 can send a second switching instruction to the switching circuit 4 to make the first piezoelectric component 1 and the first controller 3 in the second connected state. At this time, the first controller 3 can send a control instruction to the switching circuit 4. The switching circuit 4 generates a third electrical signal in response to the received control instruction, and the switching circuit 4 sends the third electrical signal to the first piezoelectric component 1. After receiving the third electrical signal, the first piezoelectric component 1 can generate vibrations corresponding to the third electrical signal and can drive the target component to vibrate together.

[0074] In the above embodiment, since the first piezoelectric component 1 and the first controller 3 are electrically connected through the switching circuit 4, the switching circuit 4 can be used to switch the connected state between the first piezoelectric component 1 and the first controller 3, so that the first piezoelectric component 1 can be in different working states, that is, the first piezoelectric component 1 can be in different working states of being able to detect vibrations or being able to generate vibrations.

[0075] In some possible embodiments of the present application, the switching circuit 4 includes a connecting branch and a disconnecting branch. The two ends of the connecting branch are respectively electrically connected to the first piezoelectric component 1 and the first controller 3, and the two ends of the disconnecting branch are respectively electrically connected to the first piezoelectric component 1 and the first controller 3; the first electrical signal is transmitted to the first controller 3 through the connecting branch; the switching instruction may include a disconnection instruction and a connection instruction; the first controller 3 is configured to send a disconnection instruction to the connecting branch when receiving the first electrical signal, and the connecting branch can disconnect the electrical connection between the first controller 3 and the first piezoelectric component 1 in response to the disconnection instruction; and / or send a connection instruction to the disconnecting branch, and the disconnecting branch electrically connects the first controller 3 and the first piezoelectric component 1 in response to the connection instruction.

[0076] In the embodiments of the present application, a connecting branch and a disconnecting branch can be provided in the switching circuit 4, so that the first piezoelectric component 1 and the first controller 3 are respectively in the first connected state or the second connected state through the connecting branch and the disconnecting branch. The first piezoelectric component 1 and the first controller 3 can be electrically connected through the connecting branch, and the first piezoelectric component 1 and the first controller 3 can be electrically connected through the disconnecting branch.

[0077] Exemplarily, as Figure 3 shown, a first switch 41 can be provided in the switching circuit 4. The first piezoelectric component 1 and the first controller 3 are electrically connected through the first switch 41, and the first switch 41 is in a normally closed state to form a connecting branch. The first controller 3 and the first piezoelectric component 1 can be electrically connected through a power amplifier circuit 6 to form a disconnecting branch.

[0078] Thus, when the first piezoelectric component 1 generates a first electrical signal due to the vibration of the target component, the first electrical signal can be transmitted to the first controller 3 through the first switch 41. After receiving the first electrical signal, the first controller 3 can compare the first electrical signal with a preset electrical signal. For example, when it is determined that the first electrical signal is a signal for playing music, the first controller 3 can issue a cut-off instruction to the first switch 41, and the first switch 41 switches from the normally closed state to the open state in response to the cut-off instruction (such as controlling the first switch 41 to open through the circuit shown by the dashed line in Figure 3 ), thereby cutting off the transmission path of the first electrical signal between the first piezoelectric component 1 and the first controller 3. At this time, the first piezoelectric component 1 can receive the third electrical signal transmitted through the power amplifier circuit 6, that is, the first piezoelectric component 1 receives the electrical signal of the corresponding audio file and generates vibrations corresponding to the electrical signal of the audio file, so as to drive the target component to generate vibrations to achieve the sound production of the target component (playing the audio file). Among them, the third electrical signal can be generated by the signal processing circuit 44 acquiring an audio signal or an audio file in response to the instruction of the first controller 3 and converting the audio file into a corresponding audio signal (the third electrical signal), and the signal processing circuit 44 transmits the generated third electrical signal to the power amplifier circuit 6.

[0079] Another example is as Figure 4 shown. A voltage stabilizing diode 42 can be set in the switching circuit 4, the first piezoelectric component 1 and the first controller 3 are electrically connected through the voltage stabilizing diode 42, and the conduction direction of the voltage stabilizing diode 42 is from the first piezoelectric component 1 to the first controller 3 to form a connected branch. For example, the voltage stabilizing diode 42 can adopt a diode with a voltage upper limit of 3.3V. The first piezoelectric component 1 and the first controller 3 can be electrically connected through the first switch 41 again, and the first switch 41 is in the normally open state to form a disconnected branch.

[0080] Thus, when the first piezoelectric component 1 generates a first electrical signal due to the vibration of the target component, the first electrical signal can be transmitted to the first controller 3 through the voltage stabilizing diode 42. When the first controller 3 determines that the first electrical signal is a signal for playing music, the first controller 3 can issue a connection instruction to the first switch 41, and the first switch 41 switches from the normally open state to the closed state in response to the connection instruction (such as through Figure 4The circuit shown by the dotted line in the middle controls the first switch 41 to be closed). At this time, the first piezoelectric component 1 can receive the electrical signal of the audio file transmitted by the power amplifier circuit 6, and generate vibrations corresponding to the electrical signal of the audio file, thereby driving the target part to vibrate to achieve the sound of the target part. Among them, since the first piezoelectric component 1 and the first controller 3 are electrically connected through the Zener diode 42, in the process of applying the third electrical signal to the first piezoelectric component 1, the Zener diode 42 is in a cut-off state, that is, the voltage of the third electrical signal is limited to a safe range by the Zener diode 42 to protect the first controller 3.

[0081] Another example, Figure 5 As shown, a second switch 43 can be provided in the switching circuit 4, and the first piezoelectric component 1 and the first controller 3 are electrically connected through the second switch 43 to form a connecting branch and a disconnecting branch. The second switch 43 can be a single-pole double-throw analog switch. The movable contact in the single-pole double-throw analog switch can be kept in communication with the first fixed contact of the two fixed contacts, so that the first piezoelectric component 1 and the first controller 3 maintain a first connected state.

[0082] In this way, after the first controller 3 receives the first electrical signal through the second switch 43, if it is determined that the first electrical signal is a signal for playing music, the first controller 3 can send a disconnection instruction and a connection instruction to the second switch 43 (such as by Figure 5 The circuit shown by the dotted line in the middle controls the state of the second switch 43), the second switch 43 cuts off the connection between the movable contact and the first fixed contact in response to the cut-off instruction, and the second switch 43 connects the movable contact to the second fixed contact in response to the connect-on instruction, thereby realizing the cut-off of the connecting branch and the connection of the disconnecting branch between the first piezoelectric component 1 and the first controller 3. At this time, the first piezoelectric component 1 can receive the electrical signal of the audio file transmitted by the power amplifier circuit 6, and generate vibration corresponding to the electrical signal of the audio file, so as to drive the target part to generate vibration, so as to realize the sound of the target part.

[0083] In the above embodiment, since the switching circuit 4 includes a connecting branch and a disconnecting branch, when the first controller 3 receives the first electrical signal through the connecting branch, the first controller 3 can control the connecting branch to be cut off and control the disconnecting branch to be connected, so that the first piezoelectric component 1 can be switched from a state of detecting vibration to a state of driving the target part to vibrate.

[0084] In some possible embodiments of the present application, the switching circuit in the electronic device further includes a signal processing circuit 44. The first controller 3 is electrically connected to the switching circuit 4 via the signal processing circuit 44. The signal processing circuit 44 can be used to process the third electrical signal.

[0085] In the present application embodiment, Figure 1, Figure 3 , Figure 4 and Figure 5 As shown in Figure 3 , Figure 4 , and Figure 5 , a signal processing circuit 44 can be provided between the first piezoelectric component 1 and the first controller 3 to process the third electrical signal transmitted to the first piezoelectric component 1 through the switching circuit 4 by means of the signal processing circuit 44. It should be noted that the signal processing circuit 44 in the switching circuit and the signal processing circuit 44 in the audio circuit can be the same signal processing circuit, that is, the signal processing circuit 44 can be shared by the switching circuit and the audio circuit. The signal processing circuit 44 in the switching circuit and the signal processing circuit 44 in the audio circuit can also be two independent circuits. The embodiments of the present application do not limit this, and the circuit structures shown in the accompanying drawings of the specification are only a possible example and do not limit the technical solutions provided by the embodiments of the present application.

[0086] Exemplarily, a signal processing circuit 44 can be provided between the breaking branch in the switching circuit 4 and the first controller 3. One end of the signal processing circuit 44 is electrically connected to the first controller 3, and the other end of the signal processing circuit 44 is electrically connected to one end of the breaking branch close to the first piezoelectric component 1. For example, the signal processing circuit 44 can adopt a digital signal processing (DSP) circuit. Then, various processes such as channel management, sound effect processing (such as echo, reverberation, bass enhancement, etc.), and digital signal processing (such as filtering, equalization, dynamic range compression, etc.) can be performed on the third electrical signal through the signal processing circuit 44 to improve the sound quality of the sound generated by driving the target member to vibrate by the first piezoelectric component 1 or enhance the auditory experience.

[0087] In the above embodiment, since the first controller 3 is electrically connected to the switching circuit 4 through the signal processing circuit 44, various processes can be performed on the third electrical signal through the signal processing circuit 44 during the process of transmitting the third electrical signal to the first piezoelectric component 1 through the switching circuit 4, which is beneficial to improving the sound quality of the sound generated by driving the target member to vibrate by the first piezoelectric component 1 or enhancing the auditory experience.

[0088] In some possible embodiments of the present application, the electronic device further includes an operational amplifier circuit 5. The first piezoelectric component 1 and / or the second piezoelectric component 2 is electrically connected to the first controller 3 through the operational amplifier circuit 5, and the operational amplifier circuit 5 is used to adjust the second electrical signal and / or the first electrical signal.

[0089] In the embodiments of the present application, as Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, an operational amplifier circuit 5 can be provided between the first piezoelectric component 1 and the first controller 3, or an operational amplifier circuit 5 can be provided between the second piezoelectric component 2 and the first controller 3 to process the first signal and / or the second electrical signal through the operational amplifier circuit 5.

[0090] Exemplarily, the first piezoelectric component 1 and the second piezoelectric component 2 can be electrically connected to the first controller 3 through different operational amplifier circuits 5 respectively. For example, the operational amplifier circuit 5 can adopt an operational amplifier (Op - Amp). The corresponding Op - Amp can be selected according to the maximum voltage that the first controller 3 can withstand, so as to amplify or reduce the first electrical signal transmitted from the first piezoelectric component 1 to the first controller 3 through the Op - Amp, or amplify or reduce the second electrical signal transmitted from the second piezoelectric component 2 to the first controller 3 through the Op - Amp.

[0091] In the above - mentioned embodiment, since the first piezoelectric component 1 and / or the second piezoelectric component 2 are electrically connected to the first controller 3 through the operational amplifier circuit 5, the first electrical signal and / or the second electrical signal can be processed through the operational amplifier circuit 5, so that the magnitudes of the first electrical signal and the second electrical signal are both within a suitable range, thereby reducing the possibility of the first controller 3 being broken down and also reducing the possibility that the first electrical signal and / or the second electrical signal are too weak to be recognized by the first controller 3.

[0092] In some possible embodiments of the present application, referring to Figure 6 and Figure 7 , Figure 6 is a schematic structural diagram of the first piezoelectric component in the electronic device provided by the embodiment of the present application, Figure 7 is a schematic structural diagram of the second piezoelectric component in the electronic device provided by the embodiment of the present application. When the first piezoelectric component 1 and the second piezoelectric component 2 are arranged on the target part, a part of the first piezoelectric component 1 is adhesively connected to the target part, and the second piezoelectric component 2 is adhesively connected to the target part.

[0093] In the embodiment of the present application, when the first piezoelectric component 1 and the second piezoelectric component 2 are arranged on the target part, according to the different structures of the first piezoelectric component 1 and the second piezoelectric component 2, the first piezoelectric component 1 and the second piezoelectric component 2 can be connected to the target part in different arrangement ways respectively.

[0094] Exemplarily, as Figure 6 shown, the first piezoelectric component 1 includes a first piezoelectric element 11 and a first substrate 12, and the first piezoelectric element 11 is attached to the first substrate 12. For example, the first piezoelectric element 11 can be bonded to the first substrate 12 and the first piezoelectric element 11 is located in the middle area of the first substrate 12. As Figure 7As shown, the second piezoelectric component 2 includes a second piezoelectric element 22 and a second substrate 23. The second piezoelectric component 2 includes a second substrate 23 and a second piezoelectric element 22. The second piezoelectric element 22 is attached to the second substrate 23. For example, the second piezoelectric element 22 can be bonded to the second substrate 23 and be located in the middle area of the second substrate 23.

[0095] In another example, the first piezoelectric component 1 and the second piezoelectric component 2 can be set to different structures in the following aspects. For example, the number of stacked layers of the first piezoelectric elements 11 stacked on the first substrate 12 is more than the number of stacked layers of the second piezoelectric elements 22 stacked on the second substrate 23. Or, the area of the first piezoelectric element 11 is larger than the area of the second piezoelectric element 22. Or, the connection manners of the first piezoelectric component and the target component are different from those of the second piezoelectric component and the target component.

[0096] In some embodiments, the first piezoelectric elements 11 can be respectively arranged on the opposite sides of the first substrate 12 so that the first piezoelectric component 1 includes at least two first piezoelectric elements 11. And a second piezoelectric element 22 is arranged on one surface of the second substrate 23.

[0097] In some other embodiments, when the first piezoelectric component 1 and the second piezoelectric component 2 are respectively arranged on the target component in different connection manners, a part of the first substrate 12 can be attached and connected to the target component, and there is a gap between the first piezoelectric element 11 and the target component, and the orthographic projection area of the first piezoelectric element 11 on the first substrate 12 does not coincide with the connection area 13 between the first substrate 12 and the target component. It is also possible to make the second substrate 23 abut against the target component, and the orthographic projection area of the second piezoelectric element 22 on the second substrate 23 coincides with the connection area 13 between the second substrate 23 and the target component. Among them, the orthographic projection area is the projection area formed by the piezoelectric element on the substrate along the vibration direction of the piezoelectric component.

[0098] Exemplarily, as Figure 6 shown, the first piezoelectric element 11 can be set to a rectangular sheet-like structure, or the first piezoelectric element 11 can be set to a circular, elliptical or other symmetric structure shape. The first substrate 12 can be set to a rectangular sheet-like structure with a length and width both greater than the length and width of the first piezoelectric element 11, or a shape similar to and larger than the shape of the first piezoelectric element 11. The first piezoelectric element 11 can be fixed on the surface of the first substrate 12 by bonding or other means.

[0099] For example, the first piezoelectric element 11 can be located on the first substrate 12 near the center of the first substrate 12, so that there is a connecting portion on the edge of the first substrate 12 that is not covered by the first piezoelectric element 11. The connecting portion on the first substrate 12 (which can be a partial area on the same side of the first piezoelectric element 11 on the first substrate 12 or a partial area on the opposite side of the first piezoelectric element 11 on the first substrate 12) can be fixedly connected to the target component. For example, two areas on the first substrate 12 are adhesively connected to the target component, so that two connecting areas 13 can be formed between the target component and the first substrate 12. In this way, the orthographic projection area of the first piezoelectric element 11 on the first substrate 12 and the connecting area 13 between the first substrate 12 and the target component will not overlap.

[0100] Again, for example, two non-covered areas of the first substrate 12 by the first piezoelectric element 11 can be adhesively fixed to the target component, such as adhesively fixing the first substrate 12 and the target component through structural adhesive. The thickness of the structural adhesive can be controlled to have a gap between the first substrate 12 and the target component.

[0101] Another example is Figure 7 As shown, the second piezoelectric element 22 can be set as a circular sheet structure, or the second piezoelectric element 22 can be set as other symmetric structures such as oval, diamond, square, etc. The second substrate 23 can be set as a circular sheet structure with a diameter larger than that of the circular second piezoelectric element 22, or a shape similar to and larger than that of the second piezoelectric element 22. The second piezoelectric element 22 can be fixed on the surface of the second substrate 23 by means of adhesion or the like.

[0102] For example, the surface of the second substrate 23 away from the second piezoelectric element 22 can be fixedly connected to the target component. For example, the second substrate 23 and the target component are fixedly connected by adhesion so that the second substrate 23 abuts against the target component. In this way, when a voltage is applied to the second piezoelectric assembly 2, the vibration generated by the second piezoelectric assembly 2 can be reduced, and at the same time, it is easier to conduct vibration during vibration detection, thereby improving the sensitivity of vibration perception.

[0103] In this way, since the first piezoelectric assembly 1 includes the first substrate 12 and the first piezoelectric element 11, the first substrate 12 can carry the first piezoelectric element 11, which is beneficial to improving the strength of the first piezoelectric element 11; and there is a gap between the first piezoelectric element 11 and the target component, which is convenient for the first piezoelectric element 11 to generate vibration. At the same time, the second piezoelectric assembly 2 includes the second substrate 23 and the second piezoelectric element 22, and the second substrate 23 can carry the second piezoelectric element 22, which is beneficial to improving the strength of the second piezoelectric element 22; and the second piezoelectric element 22 abuts against the target component through the second substrate 23, so that the second piezoelectric element 22 can vibrate synchronously with the vibration of the target component, which is beneficial to improving the sensitivity of the second piezoelectric assembly 2 to the vibration detection of the target component.

[0104] In some other embodiments, the connection region between the first piezoelectric component 1 and the target component may be located at both ends or the edges of the first piezoelectric component 1, while the connection region between the second piezoelectric component 2 and the target component may be located at the center of the second piezoelectric component 2 or in a region close to the center of the second piezoelectric component 2. For example, when the first piezoelectric component 1 is approximately cuboid-shaped, along the length direction of the first piezoelectric component 1, two partial regions at both ends of the first base 12 may be respectively connected to the target component; alternatively, along the circumferential direction of the first base 12, the edge of the first base 12 may be connected to the target component, such as by bonding a part of the first base 12 to the target component for fixation. In the second piezoelectric component 2, the connection region between the second base 23 and the target component may cover the center of the second base 23 or a region close to the center of the second base 23.

[0105] In some other embodiments, the connection region between the first piezoelectric component 1 and the target component may be multiple spaced-apart regions in a segmented form, while the connection region between the second piezoelectric component 2 and the target component may be a continuous single continuous region. For example, the connection region 13 between the first base 12 and the target component may be multiple rectangular regions, and the connection region between the second base 23 and the target component may be a continuous annular region.

[0106] In some possible embodiments of the present application, with reference to Figure 8 , Figure 8 is a schematic installation diagram of the electronic device provided in the embodiment of the present application on the target device. In some embodiments, the target device may be a vehicle, a smart terminal (such as a personal computer (PC), a laptop computer, a mobile phone, an all-in-one computer, a handheld computer, a tablet computer (pad), or a portable device, etc.), an IoT device (IoT, Internet of Things), etc., which are devices capable of carrying computer programs. The embodiments of the present application do not limit this. Taking the target device as a vehicle as an example, the target component includes at least one of the following: a vehicle body panel, an interior trim piece, and a vehicle component connected to the vehicle body panel and / or the interior trim piece.

[0107] In the embodiments of the present application, the electronic device provided in the embodiments of the present application may be arranged on a vehicle. The term "vehicle" or other similar terms used in the embodiments of the present application includes motor vehicles in a broad sense: for example, passenger / cargo vehicles including sport utility vehicles (SUVs), sedans, buses, off-road vehicles, tractors, trucks, special vehicles, buses, trucks, and various commercial vehicles; watercraft including various boats and ships, and airplanes, etc.; and including hybrid vehicles, electric vehicles, hybrid electric vehicles, hydrogen-powered vehicles, and other alternative fuel vehicles (for example, fuels derived from resources other than petroleum). The embodiments of the present application do not limit the type and structure of the vehicle.

[0108] Exemplarily, a vehicle generally includes a frame, a body 7, a power system, an electrical system, etc. The body 7 and the power system are both fixed on the frame, and the electrical system is arranged on the body 7 and the frame. The body 7 generally includes a plurality of vehicle body panels, a plurality of interior trim parts, and a plurality of vehicle components. Among them, the plurality of vehicle body panels can enclose to form the overall structure of the body 7, such as forming a cockpit, a cargo hold, etc. The interior trim parts are installed in the cockpit and the cargo hold to improve the comfort of the vehicle and can provide some operation interfaces and devices. The vehicle components are located in the cockpit and the cargo hold, and the vehicle components include seats, steering wheels, instrument panels, center control screens, armrest boxes, vehicle license plates, etc.

[0109] In another example, the target component of the vehicle can be at least any one of the vehicle body panels, interior trim parts, and vehicle components in the vehicle. That is, the first piezoelectric component 1 and the second piezoelectric component 2 in the electronic device can be arranged on the vehicle body panels, interior trim parts, and vehicle components.

[0110] In the above embodiments, since the target component includes vehicle body panels, interior trim parts, and vehicle components, by arranging the electronic device on at least one of the vehicle body panels, interior trim parts, and vehicle components, the first piezoelectric component 1 can be used to drive the vibration of the vehicle body panels, interior trim parts, etc. on the vehicle to occur, and the first piezoelectric component 1 and the second piezoelectric component 2 can also be used to detect the vibration of some components in the vehicle, such as detecting the knocking vibration of the vehicle body panels, so as to realize human-vehicle interaction.

[0111] In addition, an embodiment of the present application further provides a vehicle, which includes: a body 7, a vehicle controller, and the electronic device provided in any one of the above embodiments. Among them, the body 7 includes a plurality of vehicle body panels and a plurality of interior trim parts; the vehicle controller is installed on the body 7 and is used to control the operation of the vehicle; the first piezoelectric component 1 and the second piezoelectric component 2 are respectively arranged on the vehicle body panels and / or interior trim parts, and the first controller 3 is electrically connected to the vehicle controller.

[0112] In the embodiment of the present application, the body 7 can be the part of the vehicle for carrying people and goods, and the body 7 includes windows, doors 71, a cockpit, a passenger cabin, an engine compartment, a luggage compartment, etc.

[0113] Exemplarily, the doors 71, the cockpit, the passenger cabin, the engine compartment, the luggage compartment, etc. are generally formed by processing a plurality of vehicle body panels such as steel plates and engineering plastics and a plurality of interior trim parts such as plastic parts in a flat or curved surface.

[0114] In the embodiments of the present application, the vehicle controller is an electronic control unit for controlling the electrical system of the vehicle body 7. Through the vehicle body 7 controller, components such as electric vehicle windows, electric rearview mirrors, air conditioners, headlights, turn signals, anti-theft locking systems, central door locks, defrosting devices, braking systems, and power systems can be controlled. That is, the vehicle body 7 controller can control some components in the vehicle to perform corresponding actions to complete the control of vehicle movement.

[0115] In the embodiments of the present application, the first piezoelectric component 1 and the second piezoelectric component 2 in the electronic device can be arranged on the vehicle body panel and the interior trim. For example, the first piezoelectric component 1 and the second piezoelectric component 2 can be arranged on the panel of the door 71, and the second piezoelectric component 2 can also be arranged on the instrument panel. And the first controller 3 can be electrically connected to the vehicle controller through a wire or Bluetooth, etc., so that electrical signals can be transmitted between the first controller 3 and the vehicle controller. In this way, when the first piezoelectric component 1 and the second piezoelectric component 2 detect the vibration of the vehicle body panel being tapped, a control instruction can be sent to the vehicle controller through the first controller 3, and the vehicle controller can control the corresponding device in the vehicle to perform corresponding actions in response to the control instruction. For example, the vehicle can be controlled to open the trunk of the vehicle, etc.

[0116] For the vehicle provided in the embodiments of the present application, since the first piezoelectric component 1 and the second piezoelectric component 2 are arranged on the vehicle body panel and / or the interior trim, and the first controller 3 is electrically connected to the vehicle controller, not only can the vehicle body panel and the like be driven to vibrate by the first piezoelectric component 1 to make the vehicle emit sound, but also the vibration generated by the vehicle body panel and the like can be detected by the first piezoelectric component 1 and the second piezoelectric component 2. Thus, the vibration can be used as an input signal to send a control instruction to the vehicle controller through the first controller 3, and further the vehicle can be made to perform actions corresponding to the control instruction, thereby realizing human-vehicle interaction. At the same time, the first piezoelectric component 1 and the second piezoelectric component 2 can be arranged on the same vehicle body panel, interior trim and other components, which is beneficial to improving the sensitivity and accuracy of vibration detection of the vehicle body panel, interior trim and other components with a larger area.

[0117] In some possible embodiments of the present application, the vehicle body panel includes at least one of the following: door 71, window, hood, trunk lid, roof, front bumper, rear bumper, and fender; the first piezoelectric component 1 is installed on at least one of the following: door 71, hood, trunk lid, front bumper, and rear bumper; the second piezoelectric component 2 is installed on at least one of the following: door 71, hood, trunk lid, front bumper, rear bumper, roof, fender, window, and interior trim.

[0118] In the embodiments of the present application, the vehicle body 7 includes a plurality of vehicle body panels and a plurality of interior trims. The first piezoelectric component 1 and the second piezoelectric component 2 can be arranged on some of the plurality of vehicle body panels, and the second piezoelectric component 2 can be arranged on some of the interior trims.

[0119] Exemplarily, the first piezoelectric component 1 can be disposed inside the vehicle body panels that are relatively flat and prone to vibration, such as the vehicle door 71, the engine hood, the trunk lid, the front bumper, and the rear bumper, and are located on the outer surface of the vehicle body 7, so as to drive these vehicle body panels to vibrate and generate sound through the first piezoelectric component 1.

[0120] In another example, the second piezoelectric component 2 can be disposed on at least some components that are at least partially exposed outside the vehicle body 7, such as the vehicle door 71, the engine hood, the trunk lid, the front bumper, the rear bumper, the roof, the fender, and the window, and on the interior components located inside the cockpit and the cargo hold.

[0121] In yet another example, while the first piezoelectric component 1 is disposed on the vehicle body panels with relatively large areas, such as the vehicle door 71, the engine hood, the trunk lid, the front bumper, and the rear bumper, the second piezoelectric component 2 can also be disposed on these vehicle body panels with relatively large areas, and a certain preset distance can be provided between the first piezoelectric component 1 and the second piezoelectric component 2 located on the same vehicle body panel. In this way, the second piezoelectric component 2 can be used to increase the vibration sensing area of the vehicle body panels with relatively large areas (the vibration intensity of the area on the vehicle body panel that is farther away from the knocking point is weaker, or the vibration of the vehicle body panel provided with a reinforcing member is easily weakened by the reinforcing member and difficult to sense), which is beneficial to improving the uniformity of the vibration sensing of the vehicle body panels. Alternatively, the second piezoelectric component 2 can also be disposed only on the vehicle body panels that are not suitable for vibrating and generating sound, so as to increase the area of the vehicle body vibration sensing. For example, the fender on the vehicle body is usually of a curved surface structure, which makes it difficult for the fender to generate vibration and sound.

[0122] In the above embodiments, since the first piezoelectric component 1 is disposed on at least some components that are at least partially exposed outside the vehicle body 7, the first piezoelectric component 1 can drive at least some components that are at least partially exposed outside the vehicle body 7 to vibrate and generate sound. And the second piezoelectric component 2 is disposed on at least some components that are at least partially exposed outside the vehicle body 7 and on components such as interior components. With the cooperation of the sensing component formed by the first piezoelectric component 1 and the second piezoelectric component 2, it is beneficial to improve the sensitivity and uniformity of the vibration detection of some components on the vehicle body 7, and the number of vehicle body panels such as interior components that can detect vibration can be increased.

[0123] In some possible embodiments of the present application, with reference to Figure 9 , Figure 9 is a schematic installation diagram of the electronic device provided in the embodiment of the present application on the target component in the target device. The vehicle door 71 is provided with a reinforcing member 72, and the reinforcing member 72 divides the vehicle door 71 into at least two sub-regions; the first piezoelectric component 1 and the second piezoelectric component 2 are installed on the same vehicle door 71, and the first piezoelectric component 1 and the second piezoelectric component 2 are respectively located in different sub-regions.

[0124] In the embodiments of the present application, when installing electronic devices on the vehicle door 71, since the panel area of the vehicle door 71 is relatively large, the first piezoelectric component 1 and the second piezoelectric component 2 can be simultaneously arranged on the vehicle door 71.

[0125] Exemplarily, as Figure 9 shown, a reinforcing member 72 is usually arranged on the vehicle door 71. For example, the reinforcing member 72 is in a long rod-shaped structure, and the reinforcing member 72 is fixedly connected to a steel plate or the like on the vehicle door 71 to enhance the strength of the relatively large-area steel plate on the vehicle door 71. At this time, this one reinforcing member 72 divides the vehicle door 71 into two sub-regions, and the two sub-regions are respectively located on both sides of the reinforcing member 72. Then, the first piezoelectric component 1 can be arranged in one sub-region, and the second piezoelectric component 2 can be arranged in the other sub-region.

[0126] In the above embodiments, since the reinforcing member 72 on the vehicle door 71 divides the vehicle door 71 into at least two sub-regions, and the first piezoelectric component 1 and the second piezoelectric component 2 are respectively arranged in each sub-region. In this way, although the reinforcing member 72 is not conducive to the transmission of vibrations in different sub-regions of the vehicle door 71, the vibrations generated in each sub-region can be detected by the first piezoelectric component 1 and the second piezoelectric component 2 respectively, which is beneficial to improving the sensitivity of vibration detection of the vehicle door 71.

[0127] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be covered within the scope of the specification of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. An electronic device, characterized in that, It includes a first piezoelectric component, a second piezoelectric component, an audio circuit, and a first controller; Both the first piezoelectric component and the second piezoelectric component are electrically connected to the first controller; the first piezoelectric component and the second piezoelectric component are mounted on a target component of a target device, and the first piezoelectric component is electrically connected to the audio circuit; The first piezoelectric component and the second piezoelectric component generate passive vibrations under the vibration action of the corresponding target component. The first piezoelectric component is configured to generate a first electrical signal in response to the passive vibration, and the second piezoelectric component is configured to generate a second electrical signal in response to the passive vibration; The first controller is configured to generate a control instruction in response to at least one of the first electrical signal and the second electrical signal.

2. The electronic device according to claim 1, wherein, At least one of the first piezoelectric components and at least one of the second piezoelectric components form a set of sensing components. Each set of sensing components is used to be arranged on a first target component, and an independent piezoelectric component is used to be arranged on a second target component; the independent piezoelectric component is at least one of the second piezoelectric components that do not form the sensing component, and the first target component and the second target component are different target components in the target device respectively.

3. The electronic device according to claim 2, wherein, Each of the first piezoelectric components is electrically connected to the first controller through an independent first interface, and multiple second piezoelectric components are all electrically connected to the first controller through the same second interface.

4. The electronic device according to claim 3, wherein, The first controller is configured to determine the target component that generates vibration among multiple target components according to the first electrical signal received by each first interface, and / or according to the second electrical signal received by each second interface.

5. The electronic device according to claim 1, wherein, It further includes a switching circuit. The first piezoelectric component is electrically connected to the first controller through the switching circuit; the first controller is configured to send a switching instruction to the switching circuit, and the switching circuit makes the first piezoelectric component and the first controller in a first connection state or a second connection state in response to the switching instruction; Wherein, in the first connection state, the first controller can generate the control instruction in response to the first electrical signal; in the second connection state, the first controller is configured to make the switching circuit generate a third electrical signal to be sent to the first piezoelectric component, and the first piezoelectric component generates vibration in response to the third electrical signal to drive the target component to generate vibration.

6. The electronic device according to claim 5, wherein, The switching circuit includes a connection branch and a disconnection branch. The two ends of the connection branch are respectively electrically connected to the first piezoelectric component and the first controller, and the two ends of the disconnection branch are respectively electrically connected to the first piezoelectric component and the first controller; the first electrical signal is transmitted to the first controller through the connection branch; The switching instruction includes a cut-off instruction and a connection instruction; the first controller is configured to issue a cut-off instruction to the connection branch in the case of receiving the first electrical signal, and the connection branch can cut off the electrical connection between the first controller and the first piezoelectric component in response to the cut-off instruction; and / or issue a connection instruction to the disconnection branch, and the disconnection branch electrically connects the first controller and the first piezoelectric component in response to the connection instruction.

7. The electronic device according to claim 5, wherein, The switching circuit further includes a signal processing circuit, and the first controller is electrically connected to the switching circuit through the signal processing circuit, and the signal processing circuit is used for processing the third electrical signal.

8. The electronic device according to claim 1, wherein, It further includes an operational amplifier circuit, and the first piezoelectric component and / or the second piezoelectric component are electrically connected to the first controller through the operational amplifier circuit, and the operational amplifier circuit is used for adjusting the second electrical signal and / or the first electrical signal.

9. The electronic device according to claim 1, wherein, The audio circuit includes an audio module, a signal processing circuit and a power amplifier circuit; the audio module is electrically connected to the signal processing circuit, and the audio module is used for storing audio files; the signal processing circuit is electrically connected to the first controller and is used for processing the third electrical signal output by the audio module; the first piezoelectric component is electrically connected to the signal processing circuit through the power amplifier circuit, and the power amplifier circuit is used for amplifying the third electrical signal processed by the signal processing circuit.

10. The electronic device according to claim 1, wherein, A part of the first piezoelectric component is adhesively connected to the target piece, and the second piezoelectric component is adhesively connected to the target piece.

11. The electronic device according to any one of claims 1 to 10, wherein, The first piezoelectric component includes a first substrate and a first piezoelectric element, and the first piezoelectric element is attached to the first substrate; the second piezoelectric component includes a second substrate and a second piezoelectric element, and the second piezoelectric element is attached to the second substrate; the structures of the first piezoelectric component and the second piezoelectric component are different, including at least one of the following: The stacking layer number of the first piezoelectric elements stacked on the first substrate is more than that of the second piezoelectric elements stacked on the second substrate; The area of the first piezoelectric element is larger than that of the second piezoelectric element; The connection manner between the first piezoelectric component and the target piece is different from that between the second piezoelectric component and the target piece.

12. The electronic device according to claim 11, wherein, The connection manner between the first piezoelectric component and the target piece is different from that between the second piezoelectric component and the target piece, including at least one of the following: A part of the first substrate is adhesively connected to the target piece, there is a gap between the first piezoelectric element and the target piece, and the orthographic projection area of the first piezoelectric element on the first substrate does not coincide with the connection area between the first substrate and the target piece; The second substrate abuts against the target piece, and the orthographic projection area of the second piezoelectric element on the second substrate coincides with the connection area between the second substrate and the target piece.

13. The electronic device according to any one of claims 1 to 10, wherein, The first piezoelectric component includes a first substrate and a first piezoelectric element, and the first piezoelectric element is attached to the first substrate; the second piezoelectric component includes a second substrate and a second piezoelectric element, and the second piezoelectric element is attached to the second substrate; the first piezoelectric component and the second piezoelectric component have different properties, including at least one of the following: The capacitance value of the first piezoelectric element is greater than that of the second piezoelectric element; The dielectric constant of the first piezoelectric element is greater than that of the second piezoelectric element.

14. The electronic device according to any one of claims 1 to 10, wherein, The target device is a vehicle, and the target component includes at least one of the following: a vehicle body panel, an interior component, and a vehicle component connected to the vehicle body panel and / or the interior component.

15. A vehicle, characterized in that, Including: A vehicle body, which includes a plurality of vehicle body panels, a plurality of interior components, and vehicle components connected to the vehicle body panel and / or the interior component; A vehicle controller installed on the vehicle body for controlling the operation of the vehicle; The electronic device according to any one of claims 1 to 14, wherein the first piezoelectric component and the second piezoelectric component are respectively disposed on the vehicle body panel and / or the interior component and / or the vehicle component, and the first controller is electrically connected to the vehicle controller.

16. The vehicle according to claim 15, wherein, The vehicle body panel includes at least one of the following: a car door, a car window, an engine hood, a trunk lid, a roof, a front bumper, a rear bumper, and a fender; The first piezoelectric component is installed on at least one of the following: the car door, the engine hood, the trunk lid, the front bumper, and the rear bumper; The second piezoelectric component is installed on at least one of the following: the car door, the engine hood, the trunk lid, the front bumper, the rear bumper, the roof, the fender, the car window, and the interior component.

17. The vehicle according to claim 15, wherein, The car door has a reinforcing member, and the reinforcing member divides the car door into at least two sub-regions; the first piezoelectric component and the second piezoelectric component are installed on the same car door, and the first piezoelectric component and the second piezoelectric component are respectively located in different sub-regions.

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