Electronic device

By setting up multiple sets of electrode structures and diaphragm assemblies in electronic devices and using magnetic fields to drive the diaphragm to output sound, the problem of user discomfort while ensuring privacy is solved, and comfortable sound output is achieved without wearing headphones.

CN223488387UActive Publication Date: 2025-10-28LENOVO (BEIJING) LTD
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Patent Information

Application Number
CN202421947739.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-12
Publication Date
2025-10-28
Estimated Expiration
2034-08-12

AI Technical Summary

Technical Problem

Users need to wear headphones for a long time when privacy is required, which causes discomfort.

Method used

It uses multiple sets of electrode structures and diaphragm assemblies to drive the diaphragm movement through magnetic fields to output sound information, forming directional audible sound and avoiding the need to wear headphones.

Benefits of technology

This ensures that users can hear sounds without wearing headphones while ensuring privacy, thereby improving user comfort.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides electronic equipment, and relates to the technical field of electronic equipment. The electronic device includes: a carrier; the multiple groups of electrode structures are arranged on one side of the carrier and are used for generating a magnetic field; and the multiple groups of vibrating diaphragms correspond to the electrode structures and are arranged on the sides, away from the carrier, of the electrode structures, and the electrode structures can drive the vibrating diaphragms to act based on the magnetic field so as to output sound information.
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Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and more particularly to an electronic device. Background Technology

[0002] Currently, when listening to voice output from electronic devices, users need to wear headphones for extended periods to ensure privacy, which can be uncomfortable.

[0003] Therefore, how to provide a structure that can guarantee privacy without requiring headphones has become an urgent problem to be solved. Utility Model Content

[0004] The purpose of this application is to provide an electronic device.

[0005] To address the aforementioned technical problems, this application provides the following technical solutions:

[0006] The first aspect of this application provides an electronic device, comprising:

[0007] carrier;

[0008] Multiple sets of electrode structures are disposed on one side of the carrier to generate a magnetic field; and

[0009] Multiple diaphragms, corresponding to the electrode structure, are disposed on the side of the electrode structure away from the carrier. The electrode structure can drive the diaphragms to move based on the magnetic field in order to output sound information.

[0010] In some modified embodiments of the first aspect of this application, a display module is further included, disposed on the other side of the carrier, for outputting images;

[0011] The image can be made visible through the carrier.

[0012] In some modified embodiments of the first aspect of this application, the electrode structure includes a first electrode layer and a second electrode layer, wherein the first electrode layer is a conductive line printed or etched on a carrier; and the second electrode layer is disposed between the first electrode layer and the diaphragm.

[0013] In some modified embodiments of the first aspect of this application, multiple sets of the diaphragm arrays are arranged on the side of the electrode structure away from the carrier, the potential difference of the magnetic field experienced by the multiple sets of diaphragms is the same, and the amplitude of motion generated by the multiple sets of diaphragms is the same, so that the ultrasonic sound effects output by the multiple sets of diaphragms through vibration amplitude are superimposed to form directional audible sound.

[0014] In some modified embodiments of the first aspect of this application, multiple sets of the diaphragms are arranged sequentially along the same direction.

[0015] In some modified embodiments of the first aspect of this application, the plurality of diaphragms includes a portion of the diaphragm extending along a first direction and a portion of the diaphragm extending along a second direction having an angle with the first direction. The plurality of diaphragms extending along the first direction surround the plurality of diaphragms extending along the second direction to form a plurality of diaphragms arranged in a ring.

[0016] In some modified embodiments of the first aspect of this application, multiple sets of the diaphragms are laid flat on the side of the electrode structure away from the carrier; or

[0017] The diaphragms in the multiple sets of diaphragms partially overlap.

[0018] In some modified embodiments of the first aspect of this application, the diaphragms in adjacent groups share a common electrode drive circuit.

[0019] In some modified embodiments of the first aspect of this application, each group of diaphragms shares a single electrode for power supply between two adjacent sub-diaphragms.

[0020] Some modified embodiments of the first aspect of this application also include:

[0021] The first chip is disposed in the display module and is used to connect to the host, receive source audio signals, and convert the received source audio signals into a first audio signal.

[0022] A conversion module is connected to the first chip, receives the first audio signal, and converts the first audio signal into an output voltage. The conversion module is also connected to multiple sets of electrode structures so that the electrode structures generate a magnetic field according to the output voltage. Attached Figure Description

[0023] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:

[0024] Figure 1 A schematic diagram of the structure of an electronic device provided in this application is shown.

[0025] Figure 2 A schematic diagram of a partial structure of an electronic device provided in this application is shown.

[0026] Figure 3 A schematic diagram illustrating the distribution of an electrode structure provided in this application is shown.

[0027] Figure 4 A schematic diagram illustrating the distribution of another electrode structure provided in this application is shown.

[0028] Figure 5 The audible sound area of ​​an electronic device provided in this application is schematically shown;

[0029] Figure 6 A flowchart of an electronic device provided in this application is shown schematically.

[0030] Explanation of icon numbers:

[0031] Electronic device, carrier 11, electrode structure 12, first electrode layer 121, second electrode layer 122, dielectric 123, diaphragm 13, first diaphragm 131, second diaphragm 132, display module 14, first chip 15, conversion module 16. Detailed Implementation

[0032] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0033] During meetings, it is necessary to wear headphones for extended periods to ensure privacy. However, users may experience discomfort when wearing headphones for a long time. To address this issue, this application provides an electronic device that can output sound information by setting up multiple sets of electrode components and multiple sets of diaphragm components, allowing users to hear sound without wearing headphones.

[0034] like Figure 1 and Figure 2 As shown, this application provides an electronic device 1, comprising:

[0035] Carrier 11;

[0036] Multiple sets of electrode structures 12 are disposed on one side of the carrier 11 to generate a magnetic field; and

[0037] Multiple diaphragms 13, corresponding to the electrode structure 12, are disposed on the side of the electrode structure 12 away from the carrier 11, and can operate based on the potential difference of the magnetic field to output sound information.

[0038] This application provides an electronic device 1, including a carrier 11, multiple sets of electrode structures 12, and multiple sets of diaphragms 13. Multiple electrode structures 12 are disposed on one side of the carrier 11, and multiple sets of diaphragms 13 are fixedly disposed on the side of the electrode structures 12 away from the carrier 11. The carrier 11 is a glass plate. The multiple sets of electrode structures 12 can generate a magnetic field. The electrode structures can be driven by the magnetic field, thereby driving the diaphragms connected to the electrode structures to move, thus outputting sound information. Therefore, when using the electronic device 1, the user can receive sound information without wearing headphones, eliminating the discomfort of wearing headphones for extended periods.

[0039] like Figure 1 and Figure 2 As shown, in this embodiment, the magnetic field strength is controlled by the current of multiple sets of electrode structures 12. In this embodiment, it also includes a display module 14, disposed on the other side of the carrier 11, for outputting images;

[0040] The image can be made visible through the carrier 11.

[0041] In this embodiment, the electronic device 1 includes a display module 14, a carrier 11, multiple sets of electrode structures 12, and multiple sets of diaphragms 13. The display module 14 is used to output images. The carrier 11 is disposed on one side of the display module 14. Multiple sets of electrode structures 12 are disposed on the side of the carrier 11 away from the display module 14, and multiple sets of diaphragms 13 are disposed on the side of the multiple sets of electrode structures 12 away from the carrier 11. The carrier 11 is a light-transmitting glass plate, and the multiple sets of electrode structures 12 and multiple sets of diaphragms 13 are also made of light-transmitting materials. Thus, the image output by the display module 14 can be displayed through the carrier 11, the multiple sets of electrode structures 12, and the multiple sets of diaphragms 13. When the image is displayed, the multiple sets of diaphragms 13 can be displaced or moved under the drive of the electrode structures 12 to generate vibration, thereby outputting sound. Thus, the user can hear the corresponding sound while viewing the image, eliminating the need for external speakers or other accessory devices.

[0042] In this embodiment, the electrode structure 12 includes a first electrode layer 121 and a second electrode layer 122. The first electrode layer 121 is a conductive line, which is printed or etched on the carrier 11. The second electrode layer 122 is disposed between the first electrode layer 121 and the diaphragm 13.

[0043] In this embodiment, a first electrode layer 121 is provided on one side of the carrier 11. The first electrode layer 121 is a conductive line provided on the carrier 11 by printing or etching. A second electrode layer 122 is also provided between the first electrode layer 121 and the multiple diaphragms 13 and connected thereto. That is, the first electrode layer 121 and the second electrode layer 122 are arranged sequentially. The first electrode layer 121 and the second electrode layer 122 also have an air medium 123. The second electrode layer 122 is a conductive structural component. The first electrode layer 121 and the second electrode layer 122 can generate a magnetic field corresponding to the electrical signal based on the electrical signal they are connected to. Under the action of the magnetic field, the second electrode layer 122 can reciprocate, thereby driving the multiple diaphragms 13 connected to the second electrode layer 122 to move, and further causing the air medium to vibrate, so as to output sound information corresponding to the electrical signal.

[0044] In some alternative embodiments, the current in the first electrode layer 121 and the current in the second electrode layer 122 may be the same or different, and the directions of the voltage may be the same or different. The specific parameters of the electrical signal are determined based on the audio information to be output.

[0045] In this embodiment, multiple sets of diaphragms 13 are arrayed on the side of the electrode structure 12 away from the carrier 11. If the magnetic field force on the second electrode layer 122 connected to the multiple sets of diaphragms 13 is in accordance with the same law, then the motion amplitude generated by the multiple sets of diaphragms 13 is in accordance with the same condition, so that the ultrasonic sound effects output by the multiple sets of diaphragms 13 through vibration amplitude are superimposed to form directional audible sound.

[0046] In this embodiment, each of the multiple sets of diaphragms 13, under the action of the connected second electrode layer 122, can generate a displacement state that satisfies the same conditions. Therefore, the multiple sets of diaphragms 13 have the same vibration amplitude, and the diaphragms can output sound using ultrasound as a carrier wave. Ultrasound has the characteristics of short wavelength, fast transmission speed, and strong directionality. The identical ultrasonic sound effect output by the multiple sets of diaphragms 13 can undergo self-demodulation and superposition after being output into the air. The wavelength of the self-demodulated and superimposed ultrasound will be lengthened, thus forming audible sound. This audible sound is located in the directional region of the ultrasound, forming directional audible sound. Therefore, the user can hear the audible sound within a preset area, but will not hear any sound outside the audible area, thereby improving privacy.

[0047] For example, in some optional embodiments, the audible area is between +35° and -35° in the positive direction of the electronic device 1, but other ranges can also be set as the audible area as needed.

[0048] like Figure 3 and Figure 5As shown in the embodiments of this application, multiple sets of the diaphragms 13 are arranged sequentially in the same direction.

[0049] In this embodiment, multiple sets of diaphragms 13 can be arranged sequentially along the longitudinal direction, with each set of diaphragms extending laterally; alternatively, multiple sets of diaphragms 13 can be arranged sequentially along the lateral direction, with each set of diaphragms extending longitudinally. Thus, the ultrasonic waves generated by the vibration of multiple sets of diaphragms in the same direction can be superimposed in the air to achieve ultrasonic demodulation, realizing self-demodulation of the ultrasonic waves, making the sound transmitted by the multiple sets of diaphragms 13 audible.

[0050] In this embodiment, the size and attachment position of each diaphragm can be adjusted to achieve different sound output effects.

[0051] In some alternative embodiments, the multiple diaphragm groups 13 can be sixteen diaphragm groups or other numbers. Each diaphragm group can be an independent channel. Symmetrical diaphragm groups can form symmetrical channels. When the symmetrical diaphragm groups are working, the sound heard by the user is more three-dimensional. For example, it can form dual channels for the left and right ears, thereby bringing the user a more immersive listening experience.

[0052] In some alternative embodiments, multiple diaphragms 13 can form an inverted triangular structure, with the sound at the top of the electronic device 1 being louder than the sound at the bottom, thus creating a sky sound effect.

[0053] like Figure 4 and Figure 5 As shown in the embodiment of this application, the multiple sets of diaphragms 13 include a portion of the diaphragms extending along a first direction, and a portion of the diaphragms extending along a second direction having an angle with the first direction. The portion of the diaphragms extending along the first direction surrounds the portion of the diaphragms extending along the second direction to form a ring-shaped arrangement of multiple sets of diaphragms 13.

[0054] In this embodiment, the multiple sets of diaphragms 13 include multiple sets of first diaphragms 131 extending along a first direction and second diaphragms 132 extending along a second direction. Each first diaphragm 131 is arranged sequentially along the second direction, but the lengths of the multiple first diaphragms 131 are different. In the middle region, multiple first diaphragms 131 are arranged sequentially along the second direction. Then, two second diaphragms 132 and two first diaphragms 131 surround the multiple first diaphragms 131 in multiple layers to achieve a ring-shaped distribution of multiple sets of diaphragms 13. This generates stereo audible sound after the multiple sets of diaphragms 13 vibrate, improving the sound playback effect and quality.

[0055] In this embodiment, the voltages in the electrode structures 12 corresponding to the multiple diaphragms 13 can also be different, thereby adjusting the audible range according to the voltage differences.

[0056] In this embodiment, multiple sets of diaphragms 13 are laid flat on the side of the electrode structure 12 away from the carrier 11; or

[0057] The multiple diaphragms 13 have partial diaphragm overlap.

[0058] In this embodiment, multiple diaphragms 13 are laid flat on the electrode structure 12. This diaphragm layout has minimal impact on the light transmittance of the carrier, allowing the image output by the display module 14 to be displayed normally. Furthermore, if the vibration amplitude of each position of the multiple laid diaphragms 13 is the same, the conversion of audible sound can be better achieved.

[0059] In this embodiment, the multiple diaphragms 13 can also partially overlap, thereby allowing for adjustment of the audible sound as needed to meet personalized requirements.

[0060] In this embodiment, adjacent groups of 3 share a common electrode drive circuit.

[0061] In this embodiment, multiple diaphragms 13 are provided on one side of the electrode structure 12. Two adjacent diaphragms in the multiple diaphragms 13 share a common electrode driving circuit. The magnetic field generated by the electrode driving circuit can drive the corresponding electrodes of the two adjacent diaphragms to vibrate, thereby enabling the electrodes to drive the corresponding diaphragms to vibrate and produce ultrasonic sound effects.

[0062] In the embodiments of this application, each group of diaphragms shares an electrode between two adjacent sub-diaphragms 13, that is, one electrode is connected to two sub-diaphragms and can simultaneously drive the sub-diaphragm corresponding to the area where the electrode is connected to the sub-diaphragm to move.

[0063] In this embodiment, each group of diaphragms includes multiple sub-diaphragms 13. Two adjacent sub-diaphragms 13 share a common electrode for power supply, so that the magnetic field generated by one electrode can drive two adjacent sub-diaphragms 13 to vibrate to produce ultrasonic sound effects.

[0064] like Figure 6 As shown in the embodiments of this application, it also includes:

[0065] The first chip 15 is disposed in the display module 14 and is used to connect to the host, receive source audio signals, and convert the received audio signals into a first audio signal.

[0066] The conversion module 16 is connected to the first chip 15, receives the first audio signal, and converts the first audio signal into an output voltage. The conversion module 16 is also connected to multiple sets of electrode structures 12 so that the electrode structures 12 generate a magnetic field according to the output voltage.

[0067] In this embodiment, the electronic device 1 includes a display module 14, a carrier 11, multiple sets of electrode structures 12, multiple sets of diaphragms 13, a first chip 15, and a conversion module 16. The display module 14 is used to output images. The carrier 11 is disposed on one side of the display module 14. Multiple sets of electrode structures 12 are disposed on the side of the carrier 11 away from the display module 14. Multiple sets of diaphragms 13 are disposed on the side of the multiple sets of electrode structures 12 away from the carrier 11. The first chip 15 is disposed inside the display module 14. The first chip 15 is used to connect to a host outside the electronic device 1. The host is used to send source audio signals to the first chip 15. The first chip 15 receives the source audio signals and converts the source audio signals into first audio signals. The first chip 15 is also connected to the conversion module 16. The first chip 15 transmits the converted first audio signal to the conversion module 16. After receiving the first audio signal, the conversion module 16 converts the first audio signal into an output voltage and transmits the output voltage to multiple sets of electrode structures 12. The multiple sets of electrode structures 12 output voltage and current according to the output voltage to form a magnetic field. This allows the electrode structures to move under the action of the magnetic field, which in turn drives the multiple sets of diaphragms 13 connected to the electrode structures to vibrate, thereby realizing the output of ultrasonic signals. Furthermore, the ultrasonic signals output by the multiple sets of diaphragms 13 will be demodulated and superimposed in the air to achieve directional audible sound.

[0068] In this embodiment, the conversion module 16 includes an audio signal preprocessor, an amplifier, and an ultrasonic modulation circuit. The audio signal preprocessor is connected to the first chip 15 and receives the first audio signal. The audio signal preprocessor processes the first audio signal to obtain an analog potential signal. The amplifier is connected to the audio signal preprocessor to amplify the analog potential signal. The ultrasonic modulation circuit is connected to the amplifier and multiple electrode structures 12 to receive the amplified analog potential signal and convert it into a voltage that is transmitted to the multiple electrode structures 12. The multiple electrode structures 12 output voltage and current according to the output voltage to form a magnetic field corresponding to the electrical signal. This allows the multiple diaphragms 13 disposed on the multiple electrode structures 12 to be driven to vibrate when the electrode structures 12 move under the action of the magnetic field, thereby realizing the output of ultrasonic signals. Furthermore, the ultrasonic signals output by the multiple diaphragms 13 will be demodulated and superimposed in the air to achieve directional audible sound.

[0069] In this embodiment, the electronic device can be a display, a laptop, or a tablet, etc.

[0070] It is understood that the relevant features in the above-described devices can be referenced interchangeably. Furthermore, the terms "first," "second," etc., in the above embodiments are used to distinguish between embodiments and do not represent the superiority or inferiority of any particular embodiment.

[0071] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0072] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electronic device, characterized in that, include: carrier; Multiple sets of electrode structures are disposed on one side of the carrier to generate a magnetic field; as well as Multiple diaphragms, corresponding to the electrode structure, are disposed on the side of the electrode structure away from the carrier. The electrode structure can drive the diaphragms to move based on the magnetic field in order to output sound information. The electrode structure includes a first electrode layer and a second electrode layer. The first electrode layer is a conductive line, which is printed or etched on a carrier. The second electrode layer is disposed between the first electrode layer and the diaphragm.

2. The electronic device according to claim 1, characterized in that, Also includes: A display module, located on the other side of the carrier, is used to output images; The image can be made visible through the carrier.

3. The electronic device according to claim 1, characterized in that, Multiple sets of the diaphragm arrays are arranged on the side of the electrode structure away from the carrier. The magnetic field potential difference of the multiple sets of diaphragms is the same, and the motion amplitude generated by the multiple sets of diaphragms is the same, so that the ultrasonic sound effects output by the multiple sets of diaphragms through vibration amplitude are superimposed to form directional audible sound.

4. The electronic device according to claim 1, characterized in that, Multiple sets of the diaphragms are arranged sequentially in the same direction.

5. The electronic device according to claim 1, characterized in that, The plurality of diaphragms includes a portion of the diaphragm extending along a first direction and a portion of the diaphragm extending along a second direction having an angle with the first direction. The plurality of diaphragms extending along the first direction surround the plurality of diaphragms extending along the second direction to form a plurality of diaphragms arranged in a ring.

6. The electronic device according to claim 1, characterized in that, Multiple sets of the diaphragms are laid flat on the side of the electrode structure away from the carrier; or The diaphragms in the multiple sets of diaphragms partially overlap.

7. The electronic device according to claim 1, characterized in that, The diaphragms in adjacent groups share a common electrode drive circuit.

8. The electronic device according to claim 1, characterized in that, Each group of diaphragms shares a single electrode for power supply between two adjacent sub-diaphragms.

9. The electronic device according to claim 2, characterized in that, Also includes: The first chip is disposed in the display module and is used to connect to the host, receive source audio signals, and convert the received source audio signals into a first audio signal. A conversion module is connected to the first chip, receives the first audio signal, and converts the first audio signal into an output voltage. The conversion module is also connected to multiple sets of electrode structures so that the electrode structures generate a magnetic field according to the output voltage.