electronic devices

Abstract

This application discloses an electronic device belonging to the field of communication technology. The disclosed electronic device includes a device body and a speaker. The speaker is disposed in the device body and is a digital speaker. The digital speaker includes a driver chip, a sound-emitting part, and a receiving unit. The sound-emitting part includes multiple vibration units. The driver chip can control the working state of each vibration unit according to the target sound parameters. The driver chip can control at least one vibration unit to emit ultrasonic signals, and the receiving unit can receive the reflected ultrasonic signals.

Description

Technical Field

[0001] This application belongs to the field of communication technology, and specifically relates to an electronic device. Background Technology

[0002] With the development of electronic devices, their functions have become more complete and their functions have been gradually optimized. At the same time, how to reduce the space occupied by the functional modules of electronic devices has become a key focus.

[0003] In related technologies, electronic devices are typically equipped with a speaker for sound generation and an infrared sensor for face detection. The speaker and infrared sensor are set up separately and perform their respective functions. This undoubtedly increases the space occupied, resulting in a reduction in the space available for setting other functional modules in the electronic device. This is not conducive to the expansion of other functional modules in the electronic device, nor is it conducive to the miniaturization design of the electronic device. Summary of the Invention

[0004] The purpose of this application is to provide an electronic device that can solve the problem that speakers and infrared sensors occupy a large amount of space in electronic devices in related technologies.

[0005] This application provides an electronic device, including a device body and a speaker. The speaker is disposed in the device body and is a digital speaker. The digital speaker includes a driver chip, a sound-emitting part, and a receiving unit. The sound-emitting part includes multiple vibration units. The driver chip can control the working state of each vibration unit according to the target sound parameters.

[0006] The driving chip can control at least one of the vibration units to emit ultrasonic signals, and the receiving unit can receive the ultrasonic signals after reflection.

[0007] In this embodiment, a driver chip drives a vibration unit to emit ultrasonic signals. When a human body approaches the electronic device, the body blocks the ultrasonic signals, causing them to be reflected. The receiving unit then receives the ultrasonic signals, and other modules of the electronic device can perform corresponding operations accordingly. Thus, the functions of sensors such as face detection and speed measurement can be achieved using the vibration unit emitting ultrasonic signals and the receiving unit. The digital speaker combines sound emission and detection capabilities, eliminating the need for a separate sensor, which reduces space requirements. Furthermore, the digital speaker eliminates the need for a separate rear acoustic cavity to provide space for gas vibration, further reducing the space occupied by the speaker. This increases the space available for other functional modules within the electronic device, facilitating their expansion and miniaturization. Attached Figure Description

[0008] Figure 1This is a schematic diagram of the digital speaker disclosed in an embodiment of this application;

[0009] Figure 2 This is a front view of a portion of the structure of an electronic device disclosed in an embodiment of this application;

[0010] Figure 3 This is a cross-sectional view of a portion of the structure of an electronic device disclosed in an embodiment of this application along the length of the electronic device;

[0011] Figure 4 This is a front view of a portion of the structure of the main body of the device disclosed in an embodiment of this application;

[0012] Figure 5 This is a cross-sectional view of an electronic device disclosed in an embodiment of this application along its width.

[0013] Figure 6 This is an exploded view of an electronic device disclosed in an embodiment of this application;

[0014] Figure 7 This is a schematic diagram of the structure of an electronic device disclosed in another embodiment of this application;

[0015] Figure 8 This is a schematic diagram of the structure of an electronic device disclosed in another embodiment of this application.

[0016] Explanation of reference numerals in the attached figures:

[0017] 100-Equipment body,

[0018] 110-Shell, a-Sound outlet, 111-Frame, 112-Frame plate, 113-Cover plate

[0019] 120-Circuit Board

[0020] 130-Circuit Board Bracket

[0021] 200-Speaker, 210-Driver chip, 220-Sound-emitting part, 221-Vibration unit, 230-Receiver unit, 300-Display module, 310-Slit,

[0022] 400 - Seal, 410 - First sealing part, 420 - Second sealing part

[0023] 500-camera. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0025] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0026] The electronic device provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0027] Please refer to Figures 1-8 The electronic device disclosed in this application includes a device body 100 and a speaker 200. The device body 100 serves as the mounting base for the speaker 200, and the speaker 200 is disposed on the device body 100. Optionally, the speaker 200 can be disposed inside the device body 100 or on the surface of the device body 100.

[0028] The loudspeaker 200 is a digital loudspeaker, which includes a driver chip 210, a sound-emitting section 220, and a receiving unit 230. The sound-emitting section 220 includes multiple vibration units 221. The driver chip 210 can control the operating state of each vibration unit 221 according to the target sound emission parameters. Optionally, the target sound emission parameters may include the signal amplitude of an audio signal. The driver chip 210 can adjust the number of vibration units 221 in the operating state according to the signal amplitude of the audio signal and drive an appropriate number of vibration units 221 to work. In this way, the driver chip 210 controls an appropriate number of vibration units 221 to work and generate high-frequency pulse energy, so that the high-frequency pulse energy of the vibration units 221 accumulates to achieve the energy of the desired sound signal, thereby realizing sound emission.

[0029] Therefore, digital loudspeakers no longer need a separate rear acoustic cavity to provide space for gas vibration, reducing the space occupied by loudspeaker 200. This increases the space available for other functional modules in the electronic device, facilitating their expansion and miniaturization. Furthermore, since digital loudspeakers rely on the vibration unit 221 for amplification, loudspeaker 200 does not require additional amplification devices (such as power amplifier chips). Additionally, in practical applications, the driver chip 210 can be as thin as 1mm, which is relatively lightweight and helps reduce the size of loudspeaker 200, further contributing to miniaturization.

[0030] The driver chip 210 can control at least one vibration unit 221 to emit ultrasonic signals, and the receiving unit 230 can receive the reflected ultrasonic signals. Optionally, as... Figure 1 As shown, the vibration unit 221 used to emit ultrasonic signals is an ultrasonic sound-emitting unit that can emit ultrasonic pulse signals; the vibration unit 221 that does not need to emit ultrasonic signals is a normal sound-emitting unit that can emit audible sound waves. Of course, the vibration unit 221 used to emit ultrasonic signals can emit ultrasonic signals when needed, and audible sound waves at other times, thereby improving the utilization rate of the vibration unit 221. Furthermore, the vibration unit 221 used to emit ultrasonic signals can be customized, allowing users to adjust the sound output of the sound-emitting part 220 according to different needs. The driver chip 210 drives the vibration unit 221 to emit ultrasonic signals. When a human body approaches the electronic device, the human body blocks the ultrasonic signal, causing the ultrasonic signal to be reflected. The receiving unit 230 then receives the ultrasonic signal, and other modules of the electronic device can perform corresponding operations based on this information. For example, after receiving the ultrasonic signal, the receiving unit 230 can determine that the user is currently answering a phone call, and the control device of the electronic device can control the screen to turn off to reduce the power consumption of the electronic device. It should be noted that when the ultrasonic signal energy received by the receiving unit 230 reaches a preset value, it can be determined that the ultrasonic signal is blocked by the user.

[0031] In this embodiment, the functions that sensors can perform, such as face detection and speed measurement, can be achieved by using the vibration unit 221 that emits ultrasonic signals and the receiving unit 230. The digital speaker has both sound emission and detection performance, eliminating the need for a separate sensor, which helps to reduce the space occupied. Therefore, the space available for setting other functional modules in the electronic device is further increased, which is conducive to the expansion of other functional modules of the electronic device. At the same time, it is also conducive to the miniaturization design of the electronic device.

[0032] In an optional embodiment, another vibration unit 221 is provided between the vibration unit 221 for emitting ultrasonic signals and the receiving unit 230, that is, the distance between the vibration unit 221 for emitting ultrasonic signals and the receiving unit 230 is relatively large; or, the vibration unit 221 for emitting ultrasonic signals and the receiving unit 230 are arranged adjacent to each other, that is, the distance between the vibration unit 221 for emitting ultrasonic signals and the receiving unit 230 is relatively small. In the latter embodiment, the receiving unit 230 is closer to the vibration unit 221 for emitting ultrasonic signals, so after the ultrasonic signal is reflected, the receiving unit 230 can more easily receive the ultrasonic signal, avoiding the problem of inaccurate reception of ultrasonic signals due to excessive distance, which is beneficial to improving the accuracy of detection functions such as face detection and speed measurement.

[0033] In an optional embodiment, the device body 100 includes a housing 110, and the speaker 200 is disposed on the surface of the housing 110. In this case, the speaker 200 is directly exposed on the surface of the electronic device, resulting in a poor appearance. In another embodiment, the speaker 200 is disposed within the housing 110, and the housing 110 has a sound outlet a, which is opposite to the sound-emitting part 220. In this way, the housing 110 protects the speaker 200 and prevents it from being directly exposed on the surface of the electronic device, improving the appearance; simultaneously, the sound signal emitted by the sound-emitting part 220 is emitted through the sound outlet a, preventing the housing 110 from obstructing the sound-emitting part 220's sound emission.

[0034] In an optional embodiment, the electronic device further includes a display module 300, which is disposed on the housing 110. The display module 300 may have an opening opposite to the sound outlet a, or a slit 310 may be provided between the housing 110 and the display module 300, with the sound outlet a communicating with the slit 310. Therefore, the sound signal emitted by the sound-emitting part 220 can flow out of the electronic device sequentially through the sound outlet a and the slit 310. In the latter embodiment, the sound signal emitted by the sound-emitting part 220 is emitted sequentially through the sound outlet a and the slit 310, which can both prevent the housing 110 from blocking the sound-emitting part 220 from emitting sound and ensure the display performance of the display module 300. Moreover, the slit 310 has a small area, which helps to reduce the impact on the display area of ​​the display module 300. It should be noted that the slot 310 here can be provided only on the housing 110, or only on the display module 300, or the slot 310 can be provided on both the housing 110 and the display module 300.

[0035] Optionally, such as Figure 3 and Figure 5 As shown, the housing 110 includes a frame 111, a frame plate 112, and a cover plate 113. The frame plate 112 is connected to the display module 300. A sound outlet a is provided between the frame plate 112 and the frame 111. A slit 310 is provided between the display module 300 and the frame 111. The frame 111, the frame plate 112, and the cover plate 113 together form an accommodating space. The main body 100 of the device also includes a circuit board 120 and a circuit board support 130. The circuit board support 130 is disposed in the accommodating space. The circuit board 120 is mounted on the circuit board support 130. The speaker 200 is disposed on the circuit board 120 so that the circuit board 120 supplies power to the speaker 200, ensuring that the sound-emitting part 220 of the speaker 200 can continuously emit sound.

[0036] Optionally, the electronic device also includes a camera 500, which can be positioned below the display module 300. The slit 310 can be positioned adjacent to the camera 500, that is, the slit 310 and the camera 500 can be positioned at the top of the electronic device.

[0037] In one optional embodiment, the orthographic projection of the vibration unit 221 and / or receiving unit 230 for emitting ultrasonic signals is located outside the orthographic projection of the slit 310 in the thickness direction of the electronic device. In another embodiment, the orthographic projection of the vibration unit 221 and / or receiving unit 230 for emitting ultrasonic signals at least partially overlaps with the orthographic projection of the slit 310 in the thickness direction of the electronic device; that is, the vibration unit 221 and / or receiving unit 230 for emitting ultrasonic signals is at least partially opposite to the slit 310. When the vibration unit 221 for emitting ultrasonic signals is at least partially opposite to the slit 310, it is beneficial for the ultrasonic signals emitted by the vibration unit 221 to flow out of the slit 310 more quickly and smoothly; when the receiving unit 230 is at least partially opposite to the slit 310, it is beneficial for the reflected ultrasonic signals to enter the receiving unit 230 from the slit 310 more quickly and smoothly, facilitating the accurate reception of ultrasonic signals by the receiving unit 230. Therefore, it is beneficial to improve the accuracy of detection functions such as face detection and speed measurement.

[0038] Optionally, the sound-emitting part 220 faces the portion of the display module 300 where the slit 310 is not provided, or the sound-emitting part 220 faces the slit 310, that is, the sound-emitting direction of the sound-emitting part 220 is the location of the slit 310. In the latter embodiment, since the sound-emitting part 220 faces the slit 310, the sound signals (including audible sound waves and ultrasonic signals) emitted by the sound-emitting part 220 can flow out of the slit 310 more quickly and smoothly. Simultaneously, the reflected ultrasonic signals can also enter the receiving unit 230 more quickly and smoothly from the slit 310, which is beneficial for the speaker 200 to emit sound smoothly and for the receiving unit 230 to accurately receive the ultrasonic signals.

[0039] In optional embodiments, such as Figure 2 and Figure 3 As shown, the edge of the display module 300 has a slit 310. Compared to having the slit 310 on the housing 110, having the slit 310 on the edge of the display module 300 will not have an excessive impact on the structural strength of the display module 300. At the same time, it can shorten the distance between the user's face and the slit 310 when the user is close to the screen, so that the ultrasonic signal can be reflected more accurately, thereby improving the accuracy of detection functions such as face detection and speed measurement.

[0040] In an optional embodiment, the flow area of ​​the sound outlet a is increased or kept constant along the sound outlet direction of the sound-emitting part 220; or, as... Figure 3As shown, the flow area of ​​the sound outlet a decreases along the sound emission direction of the sound-emitting part 220. Since the flow area of ​​the slit 310 is smaller, compared to the previous embodiment, the latter embodiment utilizes the sound outlet a to accurately guide the sound signal emitted by the sound-emitting part 220 to the position of the slit 310, allowing the sound signal to flow smoothly out of the slit 310 and ensuring smooth sound emission. Optionally, a sound outlet a is formed between the frame 111 and the frame plate 112, and the distance between the frame plate 112 and the frame 111 gradually decreases along the sound emission direction of the sound-emitting part 220, thereby reducing the flow area of ​​the sound outlet a. Optionally, the edge of the frame plate 112 is provided with a guide surface, and the surface of the frame 111 facing the guide surface is perpendicular to the plane where the frame plate 112 is located.

[0041] In an optional embodiment, the electronic device further includes a seal 400 extending along the edge of the sound-emitting portion 220 and disposed between the housing 110 and the sound-emitting portion 220. Optionally, as... Figure 3 As shown, the seal 400 can have a ring structure, surrounding the sound-emitting part 220, with a hole in the center of the seal 400 allowing sound signals to pass through. Further optionally, the seal 400 can include a first sealing part 410 and a second sealing part 420, with the first sealing part 410 disposed between the sound-emitting part 220 and the frame 111, and the second sealing part 420 disposed between the sound-emitting part 220 and the frame plate 112. The seal 400 can be sealing foam or other components that provide a sealing effect. In this embodiment, sealing the gap between the sound-emitting part 220 and the housing 110 with the seal 400 improves the sealing effect, prevents sound leakage, and allows sound to flow stably from the sound outlet a and the opening 310. In other embodiments, when the gap between the speaker 200 and the housing 110 is small, i.e., the possibility of sound leakage from the speaker 200 is low, the seal 400 may not be required.

[0042] In an optional embodiment, the electronic device further includes a display module 300, which is disposed on the main body 100 of the device. The display module 300 is communicatively connected to the receiving unit 230. When the receiving unit 230 receives an ultrasonic signal, it indicates that the human body is blocking the ultrasonic signal, causing it to be reflected. The distance between the human body and the display module 300 is relatively close. At this time, the electronic device is in a call state, and the human body does not need to use the display module 300, so the display module 300 is in a non-working state. Using this embodiment, when the human body is near the electronic device, the display module 300 does not work, i.e., the display module 300 is black; when the human body is away from the electronic device, the display module 300 works, i.e., the display module 300 performs its display function for the human body to use. This avoids the situation where the display module 300 is working when the human body is not using it, which helps to save energy and reduce energy consumption. Optionally, the electronic device may also include a control device, which is communicatively connected to the receiving unit 230 and the display module 300 respectively. When the receiving unit 230 receives an ultrasonic signal, the control device controls the display module 300 to be in a non-working state.

[0043] Of course, in other embodiments, the working state of the display module 300 may not be affected by whether the ultrasonic signal is reflected, and the working state of the display module 300 may be controlled manually.

[0044] In optional embodiments, such as Figure 7 and Figure 8 As shown, the main body 100 of the device includes a housing 110, a speaker 200 disposed on the housing 110, and a sound outlet a on the side of the housing 110, which is opposite to the sound-emitting part 220. Optionally, the housing 110 includes a frame 111, which is located on the side of the housing 110, and the sound outlet a is opened on the frame 111. In this embodiment, the sound outlet a is opened at the edge of the electronic device, which is beneficial for the sound signal to flow out quickly and achieve smooth sound production, without affecting the function of other modules inside the electronic device.

[0045] In an optional embodiment, the receiving unit 230 is configured as one; or, the receiving unit 230 is configured as at least two, with each receiving unit 230 arranged adjacent to each other. Compared with the previous embodiment, in the latter embodiment, after the ultrasonic signal is reflected by the human body, since there are at least two receiving units 230, the probability of the receiving unit 230 receiving the ultrasonic signal is greater. This avoids the situation where the number and position of the receiving units 230 are limited, which would prevent the accurate reception of ultrasonic signals. This is beneficial to improving the accuracy of detection functions such as face detection and speed measurement.

[0046] In optional embodiments, such as Figure 4 and Figure 5As shown, at least two digital speakers and sound outlets a are spaced apart, with each digital speaker corresponding to a sound outlet a. Each digital speaker includes a driver chip 210, a sound-emitting part 220, and a receiving unit 230. The sound-emitting part 220 of each digital speaker is opposite to the corresponding sound outlet a, and the slit 310 is connected to each sound outlet a. Thus, simultaneous sound emission from at least two digital speakers optimizes sound performance. Furthermore, by emitting ultrasonic signals through the vibration units 221 of at least two digital speakers, the receiving unit 230 has a higher probability of receiving the ultrasonic signals when they are blocked by a human body, improving the accuracy of detection functions such as face detection and speed measurement.

[0047] The electronic devices disclosed in this application can be smartphones, tablets, e-book readers, wearable devices, video game consoles, etc. This application does not limit the specific types of electronic devices.

[0048] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An electronic device, comprising: The electronic device comprises a device body (100) and a loudspeaker (200), the loudspeaker (200) is arranged on the device body (100), and the loudspeaker (200) is a digital loudspeaker, the digital loudspeaker comprises a driving chip (210), a sound emitting part (220) and a receiving unit (230), the sound emitting part (220) comprises a plurality of vibration units (221), the driving chip (210) can control the working state of each vibration unit (221) according to target sound emitting parameters, the plurality of vibration units (221) comprise ultrasonic sound emitting units and ordinary sound emitting units, the ultrasonic sound emitting units can emit ultrasonic pulse signals, and the ordinary sound emitting units can emit audible sound wave signals; The driving chip (210) can control at least one vibration unit (221) to emit ultrasonic signals, and the receiving unit (230) can receive the reflected ultrasonic signals. The device body (100) comprises a shell (110), the electronic device further comprises a display module (300), the loudspeaker (200) and the display module (300) are arranged on the shell (110), a gap (310) is arranged between the shell (110) and the display module (300), the shell (110) is provided with a sound outlet hole (a), the sound outlet hole (a) is communicated with the gap (310), and the sound outlet hole (a) is opposite to the sound emitting part (220); the sound signals emitted by the sound emitting part (220) flow out from the gap (310), and the reflected ultrasonic signals enter the receiving unit (230) from the gap (310); The flow area of the sound outlet hole (a) decreases along the sound emitting direction of the sound emitting part (220).

2. The electronic device of claim 1, wherein, The vibration unit (221) for emitting the ultrasonic signals is arranged adjacent to the receiving unit (230).

3. The electronic device of claim 1, wherein, In the thickness direction of the electronic device, the orthographic projection of the vibration unit (221) and / or the receiving unit (230) for emitting the ultrasonic signals at least partially overlaps with the orthographic projection of the gap (310).

4. The electronic device of claim 1, wherein, The sound emitting part (220) faces the gap (310).

5. The electronic device of claim 1, wherein, The edge of the display module (300) is provided with the gap (310).

6. The electronic device of claim 1, wherein, The electronic device further comprises a sealing piece (400), the sealing piece (400) extends along the edge of the sound emitting part (220), and the sealing piece (400) is arranged between the shell (110) and the sound emitting part (220).

7. The electronic device of claim 1, wherein, The display module (300) is in communication connection with the receiving unit (230), and the display module (300) is in a non-working state when the receiving unit (230) receives the ultrasonic signals.

8. The electronic device of claim 1, wherein, The side surface of the shell (110) is provided with the sound outlet hole (a), and the sound outlet hole (a) is opposite to the sound emitting part (220).

9. The electronic device of claim 1, wherein, The receiving unit (230) is arranged in at least two, and each receiving unit (230) is arranged adjacent to each other.

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