WO2023134307A1

WO2023134307A1 - Electronic device

Info

Publication number: WO2023134307A1
Application number: PCT/CN2022/133560
Authority: WO
Inventors: 张�成
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-01-11
Filing date: 2022-11-22
Publication date: 2023-07-20
Also published as: CN216700057U

Abstract

The present application provides an electronic device, comprising a housing, a first loudspeaker, and a second loudspeaker, wherein the first loudspeaker and the second loudspeaker can be driven to emit sounds, which have the same vibration amplitude and opposite phases, thereby forming a dipole sound source; and the housing is internally provided with a first sound output channel and a second sound output channel, which are respectively in communication with the first loudspeaker and the second loudspeaker, and a surface of the housing is provided with a first sound outlet and a second sound outlet, which are respectively in communication with the first sound output channel and the second sound output channel. The electronic device provided in the embodiments of the present application controls the two loudspeakers to emit sounds, which have the same vibration amplitude and opposite phases, through the independent sound output channels, so as to form a dipole sound source; and anti-phase sound field superposition is generated at a far field of the electronic device, so as to reduce the loudness and clarity of the sounds, thereby making it impossible for other people at the far field of the electronic device to hear a call sound clearly, and thus realizing the privacy of a call.

Description

Electronic equipment

【Technical field】

The invention relates to the technical field of loudspeaker arrangement structures in electronic equipment, in particular to an electronic equipment.

【Background technique】

Electronic devices in conventional technology generally use a single speaker to produce sound in the call mode, and the sound will leak to the surroundings of the mobile phone through the micro-slit sound hole at the top of the screen and the sound hole at the top of the middle frame, especially the sound hole at the top of the middle frame. It will increase the sound leakage in the direction of the back of the electronic device, poor privacy, and affect the user experience.

【Content of invention】

The first aspect of the embodiment of the present application provides an electronic device, the electronic device includes a casing, a first speaker, and a second speaker; the first speaker and the second speaker can be driven to emit vibrations with the same amplitude and phase Opposite sounds form a dipole sound source; the inside of the housing is provided with a first sound output channel and a second sound output channel respectively communicated with the first speaker and the second speaker, and the housing The surface of the surface is provided with a first sound outlet and a second sound outlet respectively communicating with the first sound outlet and the second sound outlet.

The second aspect of the embodiment of the present application provides an electronic device, the electronic device includes a housing, a first speaker, and a second speaker; the first speaker and the second speaker are configured as a dipole sound source; The interior of the casing is provided with a first sound output channel and a second sound output channel respectively connected with the first speaker and the second speaker, and the surface of the casing is provided with a channel respectively connected to the first sound output channel. The channel communicates with the first sound outlet and the second sound outlet through the second sound outlet.

The third aspect of the embodiment of the present application provides an electronic device, the electronic device includes a first speaker and a second speaker; the first speaker and the second speaker can be driven to emit sounds with the same vibration amplitude and opposite phase , thereby forming a dipole sound source; the first speaker and the second speaker emit sound through the adjacently arranged first sound outlet and second sound outlet.

The electronic device provided in the embodiment of the present application controls two speakers to emit sounds with the same vibration amplitude and opposite phase through independent sound channels, thereby forming a dipole sound source, and generating anti-phase sound field superposition at the far field of the electronic device, Reduce the loudness and clarity of the sound, so that other people in the far field of the electronic device cannot hear the call sound clearly, and realize the privacy of the call.

【Description of drawings】

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the electronic device of the present application;

Fig. 2 is a structural schematic diagram of another viewing angle of the electronic device in the embodiment of Fig. 1;

Fig. 3 is a schematic diagram of partial structural disassembly of the electronic device in the embodiment of Fig. 1;

Fig. 4 is a schematic cross-sectional view of the structure of the electronic device at A-A in the embodiment of Fig. 1;

Fig. 5 is a schematic diagram of a partial structure of the electronic device in the embodiment of Fig. 1;

6 is a schematic cross-sectional view of a partial structure of another embodiment of the electronic device of the present application;

Fig. 7 is a partial structural schematic diagram of another embodiment of the electronic device of the present application;

Fig. 8 is a schematic diagram of partial structure disassembly of another embodiment of the electronic device of the present application;

Fig. 9 is an enlarged schematic diagram of a partial structure of the housing in the embodiment of Fig. 8;

FIG. 10 is a schematic diagram of a structural composition block diagram of an embodiment of an electronic device of the present application.

【Detailed ways】

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. In particular, the following examples are only used to illustrate the present invention, but not to limit the scope of the present invention. Likewise, the following embodiments are only some but not all of the embodiments of the present invention, and all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

"Electronic equipment" (or simply "terminal") as used herein includes, but is not limited to, configured to direct cable connection, and/or another data connection/network) and/or via (for example, for cellular networks, wireless local area networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM-FM broadcast transmitters , and/or a device for receiving/sending communication signals via a wireless interface of another communication terminal. A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data communication capabilities; may include radiotelephones, pagers, Internet/Intranet access , a PDA with a web browser, organizer, calendar, and/or Global Positioning System (GPS) receiver; and a conventional laptop and/or palm-type receiver or other electronic device including a radiotelephone transceiver. A mobile phone is an electronic device equipped with a cellular communication module.

Please refer to FIGS. 1 to 3 together. FIG. 1 is a schematic diagram of the overall structure of an embodiment of the electronic device of the present application. FIG. 2 is a schematic structural diagram of another perspective of the electronic device in the embodiment of FIG. Schematic diagram of partial structure disassembly of electronic equipment. It should be noted that the electronic devices in this application may include electronic devices with speakers, such as mobile phones, tablet computers, notebook computers, and wearable devices. Wherein, in the illustration of this embodiment, only a mobile phone is taken as an example for illustration. The electronic device 10 includes a casing 100 and a speaker 200 . Of course, the electronic device may also include structures such as a display screen, a battery, a circuit board, and a camera, which are within the understanding of those skilled in the art, and will not be described in detail in the embodiments of the present application. It should be noted that the terms "comprising" and "having" and any variations thereof in the embodiments of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or components inherent in those processes, methods, products, or devices.

Specifically, please refer to FIG. 4. FIG. 4 is a schematic cross-sectional view of the structure of the electronic device at A-A in the embodiment of FIG. 1. Optionally, the speaker 200 in this embodiment includes a first speaker 210 and a second speaker 220, the first speaker 210 and the second speaker 220 may be arranged opposite to each other in the thickness direction as shown in the figure, or arranged side by side in the width direction in some other embodiments, which is not specifically limited here. The first speaker 210 and the second speaker 220 can be driven to emit sounds with the same vibration amplitude and opposite phases, thereby forming a dipole sound source. A dipole sound source refers to two sound source points S+ and S- that are very close to each other. Their vibration amplitudes are the same, but their phases are opposite. A synthetic sound source composed of such two point sound sources. Specifically, the electronic device may include a first drive circuit and a second drive circuit (not shown in the figure), the first drive circuit is connected to the first speaker 210, and the second drive circuit is connected to the first speaker 210. Two loudspeakers 220 are connected, wherein, the first drive circuit and the second drive circuit can be different control circuit boards, or different chips or control modules on the same circuit board. The detailed features of this part are available to those skilled in the art. Within the scope of understanding, it will not be repeated here. The first driving circuit and the second driving circuit are respectively used to drive the sound signals emitted by the first speaker and the second speaker to attenuate or enhance at different frequency points, thereby realizing the The second speaker cancels the privacy function or enhances the power amplifier function.

Please continue to refer to FIG. 4 . In this embodiment, the housing 100 is provided with a first sound output channel 1100 and a second sound output channel 1200 respectively communicating with the first speaker 210 and the second speaker 220 . The surface of the casing 100 is provided with a first sound outlet 101 and a second sound outlet 102 respectively communicating with the first sound outlet 1100 and the second sound outlet 1200 .

Optionally, please continue to refer to FIG. 1 and FIG. 2 , the housing 100 in this embodiment includes a first surface 110 , a second surface 120 and a side surface 130 ; the first surface 110 and the second surface 120 are opposite to each other. It is provided that the side surfaces 130 are respectively connected to the first surface 110 and the second surface 120 . Wherein, the side surface 130 may be a circumferential surface structure. The display screen of the electronic device can be set on the first surface 110 , and the second surface 120 can be the rear shell of the electronic device. The embodiment of the present application only uses a simplified diagram as an example for schematic illustration, and does not limit the design of other components of the electronic device. It should be noted that the terms "first", "second", and "third" in the embodiments of the present application are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the indicated technology number of features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

Please continue to refer to FIG. 4 , the angle a1 between the direction X1 of the first sound outlet 101 in this embodiment and the direction perpendicular to the first surface 110 (direction of arrow Z1 in FIG. 4 ) is less than 45 degrees, wherein The first sound hole 101 may be disposed on the first surface 110 or at the angle between the first surface 110 and the side 130 (top side) (as shown in FIG. 4 ). The sound output of the first sound output hole 101 is mainly used for application scenarios requiring high privacy, such as making a low sound, such as a call.

Optionally, the second sound outlet 102 in this embodiment is disposed on the side (generally the top side) 130 , and the orientation of the second sound outlet 102 is not specifically limited. There are mainly two application scenarios for sound output from the second sound output hole 102 . In a privacy scenario, the sound output from the second sound outlet 102 cooperates with the sound output from the first sound output hole 101 to produce sounds with the same vibration amplitude and opposite phases, forming a dipole sound source, so that in the far field of the electronic device The anti-phase sound field superposition is generated to reduce the loudness and clarity of the sound, so that other people in the far field of the electronic device cannot hear the call sound clearly, and realize the privacy of the call. In the application scenario of an external power amplifier, the sound output from the second sound outlet 102 and the sound output from the first sound outlet 101 produce sound with the same phase, forming the same-phase sound field superposition, enhancing the loudness of the sound, and realizing the effect of the external sound of the electronic device. promote.

Please continue to refer to Figure 4, in order to achieve a better privacy effect, a reliable and effective dipole sound source is formed. Optionally, the volume of the first sound output channel 1100 is 0.5-2 times the volume of the second sound output channel 1200 . Specifically, the volume of the first sound output channel 1100 can be 0.5 times, 0.6 times, 0.8 times, 1 time (same), 1.5 times, and 2 times the volume of the second sound output channel 1200, etc., and the first sound output channel 1200 The length of the sound output channel 1100 may be 0.5-2 times the length of the second sound output channel 1200 . Specifically, the length of the first sound output channel 1100 may be 0.5 times, 0.6 times, 0.8 times, 1 time (same), 1.5 times, or 2 times the volume of the second sound output channel 1200 . Optionally, in an embodiment, it may be specifically designed that the volume and length of the first sound output channel 1100 and the second sound output channel 1200 are the same.

Optionally, the area of the first sound outlet 101 is 0.5-2 times the area of the second sound outlet 102, specifically, the area of the first sound outlet 101 is 0.5-2 times that of the second sound outlet. 0.5 times, 0.6 times, 0.8 times, 1 time (same), 1.5 times, and 2 times the area of 102 . In some embodiments, it may be designed that the area of the first sound outlet 101 is the same as that of the second sound outlet 102 . It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain If the specific posture changes, the directional indication will also change accordingly.

Optionally, please continue to refer to FIG. 4. In order to make the two speakers produce better dipole sound source effects, the center distance d1 between the first sound outlet 101 and the second sound outlet 102 can be designed to be no greater than 30mm. The difference in the amplitude of the sound generated within 30 mm is less than 10%. The greater the center distance d1 between the first sound outlet 101 and the second sound outlet 102 , the worse the effect of the dipole sound source generated, and thus the worse the privacy. Wherein, the specific value of the center distance d1 between the first sound outlet 101 and the second sound outlet 102 may be 30mm, 28mm, 25mm, 20mm, 15mm, and 10mm, etc., which is not specifically limited here.

Please also refer to Figure 5. Figure 5 is a schematic diagram of the local structure of the electronic device in the embodiment of Figure 1. The center of the sound hole described in this embodiment refers to the geometric center of the sound hole, and is not limited to the sound hole. The specific shape and quantity, for example, the first sound outlet 101 in this embodiment is a strip structure, and its center should be the position marked 101a in the figure, while the second sound outlet 102 can be composed of multiple small holes , then its center should be the geometric center composed of multiple small holes, that is, the position marked 102a in the figure. That is, the distance between 101a and 102a is the distance d1 between the centers of the first sound outlet 101 and the second sound outlet 102 (please refer to FIG. 4 and FIG. 5 in conjunction).

The shapes of the first sound outlet 101 and the second sound outlet 102 in the embodiment of the present application are not limited to those shown in the figure, and can also be other structures, such as a sound outlet formed by a plurality of small holes arranged in a matrix or It is a single round hole, etc. The specific shapes of the first sound outlet 101 and the second sound outlet 102 can also be designed according to the overall shape ID of the electronic device.

The electronic device provided by the embodiment of the present application can control two speakers to emit sounds with the same vibration amplitude and opposite phase through two independent sound channels, thereby forming a dipole sound source and generating anti-phase at the far field of the electronic device The sound field is superimposed to reduce the loudness and clarity of the sound, so that other people in the far field of the electronic device cannot hear the call sound clearly, and realize the privacy of the call. In the application scenario of the external power amplifier, the two sound outlets emit sounds with the same phase, forming the superposition of the same-phase sound field, enhancing the loudness of the sound, and realizing the improvement of the external sound effect of the electronic equipment.

Please refer to FIG. 6 . FIG. 6 is a schematic cross-sectional view of a partial structure of another embodiment of an electronic device of the present application. The electronic device 10 in this embodiment may also include a casing 100 and a speaker 200 . The speaker 200 may also include a first speaker 210 and a second speaker 220; the first speaker 210 and the second speaker 220 may be driven to emit sounds with the same vibration amplitude and opposite phases, thereby forming a dipole sound source.

Wherein, the interior of the casing 100 is also provided with a first sound output channel 1100 and a second sound output channel 1200 respectively communicating with the first speaker 210 and the second speaker 220, and the surface of the casing 100 is provided with There are a first sound outlet 101 and a second sound outlet 102 communicating with the first sound outlet 1100 and the second sound outlet 1200 respectively. The casing 100 includes a first surface 110, a second surface 120 and a side surface 130; The two surfaces 120 are connected.

In this embodiment, the angle a1 between the direction X1 of the first sound outlet 101 and the direction perpendicular to the first surface 110 (direction of arrow Z1 in FIG. 6 ) is less than 45 degrees, wherein the first sound outlet 101 may be disposed on the first surface 110 or at the angle between the first surface 110 and the side 130 (top side) (shown in FIG. 6 ). The sound output of the first sound output hole 101 is mainly used for application scenarios requiring high privacy, such as making a low sound, such as a call.

Different from the previous embodiments, the included angle a2 between the direction X2 of the second sound outlet 102 in this embodiment and the direction perpendicular to the second surface 120 (direction of arrow Z2 in FIG. 6 ) is less than 45 degrees . Wherein, the second sound hole 102 may be disposed on the second surface 120 or at the angle between the second surface 120 and the side 130 (top side) (as shown in FIG. 6 ). There are mainly two application scenarios for sound output from the second sound output hole 102 . In a privacy scenario, the sound output from the second sound outlet 102 cooperates with the sound output from the first sound output hole 101 to produce sounds with the same vibration amplitude and opposite phases, forming a dipole sound source, so that in the far field of the electronic device The anti-phase sound field superposition is generated to reduce the loudness and clarity of the sound, so that other people in the far field of the electronic device cannot hear the call sound clearly, and realize the privacy of the call. In the application scenario of an external power amplifier, the sound output from the second sound outlet 102 and the sound output from the first sound outlet 101 produce sound with the same phase, forming the same-phase sound field superposition, enhancing the loudness of the sound, and realizing the effect of the external sound of the electronic device. promote.

Optionally, in order to achieve a better privacy effect, a reliable and effective dipole sound source is formed. Optionally, the volume of the first sound output channel 1100 is 0.5-2 times the volume of the second sound output channel 1200 . Specifically, the volume of the first sound output channel 1100 can be 0.5 times, 0.6 times, 0.8 times, 1 time (same), 1.5 times, and 2 times the volume of the second sound output channel 1200, etc., and the first sound output channel 1200 The length of the sound output channel 1100 may be 0.5-2 times the length of the second sound output channel 1200 . Specifically, the length of the first sound output channel 1100 may be 0.5 times, 0.6 times, 0.8 times, 1 time (same), 1.5 times, or 2 times the volume of the second sound output channel 1200 . Optionally, in an embodiment, it may be specifically designed that the volume and length of the first sound output channel 1100 and the second sound output channel 1200 are the same.

Optionally, the area of the first sound outlet 101 is 0.5-2 times the area of the second sound outlet 102, specifically, the area of the first sound outlet 101 is 0.5-2 times that of the second sound outlet. 0.5 times, 0.6 times, 0.8 times, 1 time (same), 1.5 times, and 2 times the area of 102 . In some embodiments, it may be designed that the area of the first sound outlet 101 is the same as that of the second sound outlet 102 .

Optionally, please continue to refer to FIG. 6 , in order to make the two speakers produce a better dipole sound source effect, the center distance d1 between the first sound outlet 101 and the second sound outlet 102 can be designed to be no greater than 30mm. The difference in the amplitude of the sound generated within 30mm is less than 10%. The larger the center distance d1 between the first sound outlet 101 and the second sound outlet 102, the worse the effect of the dipole sound source generated, and the worse the privacy. Wherein, the specific value of the center distance d1 between the first sound outlet 101 and the second sound outlet 102 may be 30mm, 28mm, 25mm, 20mm, 15mm, and 10mm, etc., which is not specifically limited here. In addition, the definition method of the center of the first sound outlet 101 and the second sound outlet 102 can refer to the description of the foregoing embodiments, and will not be repeated here.

Optionally, the shapes of the first sound outlet 101 and the second sound outlet 102 in this embodiment are not limited to those shown in the figure, and may also be other structures, such as an outlet formed by a plurality of small holes arranged in a matrix. Sound hole or a single round hole etc.

Please refer to FIG. 7. FIG. 7 is a schematic diagram of a partial structure of another embodiment of the electronic device of the present application. The difference from the previous embodiment is that the electronic device 10 in this embodiment further includes a third speaker 230, and the casing 100 A third sound output channel 1300 communicating with the third speaker 230 is provided inside, and a third sound output hole 103 communicating with the third sound output channel 1300 is provided on the surface of the casing 100 . Wherein, the third sound outlet 103 can be arranged on the side surface 130 (similar to the position of the second sound outlet 102 in the embodiment of FIG. 4 ), or the orientation of the third sound outlet 103 and the direction perpendicular to the second surface The angle between them is less than 45 degrees (similar to the position of the second sound outlet 102 in the aforementioned embodiment of FIG. 6 ). Optionally, the third speaker 230 in this embodiment may be provided with an independent driving circuit to realize the driving control of the sound signal.

Optionally, in order to achieve a better privacy effect, a reliable and effective dipole sound source is formed. Optionally, the volume of the first sound output channel 1100 is 0.5-2 times the volume of the third sound output channel 1300 . Specifically, the volume of the first sound output channel 1100 may be 0.5 times, 0.6 times, 0.8 times, 1 time (same), 1.5 times, and 2 times the volume of the third sound output channel 1300, etc., and the first sound output channel 1300 The length of the sound output channel 1100 may be 0.5-2 times the length of the third sound output channel 1300 . Specifically, the length of the first sound output channel 1100 may be 0.5 times, 0.6 times, 0.8 times, 1 time (same), 1.5 times, or 2 times the volume of the third sound output channel 1300 . Optionally, in an embodiment, it may be specifically designed that the volume and length of the first sound output channel 1100 and the third sound output channel 1300 are the same.

Optionally, the area of the first sound outlet 101 is 0.5-2 times the area of the third sound outlet 103, specifically, the area of the first sound outlet 101 is 0.5-2 times that of the third sound outlet. 0.5 times, 0.6 times, 0.8 times, 1 time (same), 1.5 times, 2 times, etc. of the area of 103 . In some embodiments, it may be designed that the area of the first sound outlet 101 is the same as that of the third sound outlet 103 .

Optionally, please continue to refer to FIG. 7 , in order to make the two speakers produce a better dipole sound source effect, the center distance d2 between the first sound outlet 101 and the third sound outlet 103 can be designed to be no greater than 30mm. The difference in the amplitude of the sound generated within 30 mm is less than 10%. The greater the center distance d2 between the first sound outlet 101 and the third sound outlet 103 , the worse the effect of the dipole sound source generated, and thus the worse the privacy. Wherein, the specific value of the center distance d2 between the first sound outlet 101 and the third sound outlet 103 may be 30 mm, 28 mm, 25 mm, 20 mm, 15 mm, and 10 mm, etc., which are not specifically limited here. In addition, the definition of the centers of the first sound outlet 101 and the third sound outlet 103 can refer to the definition of the first sound outlet 101 and the second sound outlet 102 in the foregoing embodiments, and will not be repeated here. In addition, the parameters related to the second sound output channel, the second sound output hole, and the second speaker may be related to the third sound output channel, the third sound output hole, and the third speaker (or refer to the second sound output channel in the foregoing embodiments). The related parameter features of the sound channel, the second sound hole, and the second speaker) are similar, and will not be described in detail here.

Please refer to FIG. 8 and FIG. 9 together. FIG. 8 is a schematic diagram of partial structure disassembly of another embodiment of the electronic device of the present application. FIG. 9 is an enlarged schematic diagram of a partial structure of the housing in the embodiment of FIG. The device includes a housing 100 and a speaker 200 . Wherein, the speaker 200 in this embodiment specifically includes a first speaker 210, a second speaker 220, a third speaker 230, and a fourth speaker 240, and each speaker is provided with a corresponding sound channel inside the casing 100, and each speaker The sound outlet channels all correspond to a sound outlet, wherein, in this embodiment, the first speaker 210 corresponds to the first sound outlet 101, the second speaker 220 corresponds to the second sound outlet 102, and the third speaker 230 corresponds to the third The sound outlet 103 and the fourth speaker 240 correspond to the fourth sound outlet 104 . Each speaker can be individually controlled by the electronic device's circuit board.

Among them, the first speaker 210 can be used as a main speaker, and the other three can be auxiliary speakers, which are used to cooperate with the main speaker to realize privacy application scenarios and application scenarios that require enhanced power amplifiers. The second sound outlet 102, the third sound outlet 103 and the fourth sound outlet 104 can be arranged around the first sound outlet 101, the second sound outlet 102, the third sound outlet 103 and the fourth sound outlet 104 (and its corresponding sound output channel) and the first sound output hole 101 (and its corresponding sound output channel) can refer to the second sound output hole and its corresponding sound output channel and the first sound output channel in the foregoing embodiment. The parameter relationship between the sound hole and its corresponding sound channel. In addition, the shapes of the first sound outlet 101, the second sound outlet 102, the third sound outlet 103, and the fourth sound outlet 104 can also be various in some other embodiments, and will not be described here one by one. List and detail.

The electronic device provided by the embodiment of the present application can control multiple auxiliary speakers to emit sound with the same vibration amplitude and opposite phase as the main speaker through independent sound channels, thereby forming a dipole sound source, which is generated in the far field of the electronic device. The anti-phase sound field superimposition reduces the loudness and clarity of the sound, so that other people in the far field of the electronic device cannot hear the call sound clearly, and realize the privacy of the call. In the application scenario of the external power amplifier, multiple sound outlets emit sounds with the same phase, forming the superposition of the same-phase sound field, enhancing the loudness of the sound, and realizing the improvement of the external playback effect of electronic equipment.

Please refer to FIG. 10. FIG. 10 is a schematic diagram of a structural block diagram of an embodiment of an electronic device of the present application. as an example. The structure of the electronic device may include an RF circuit 910, a memory 920, an input unit 930, a display unit 940, a sensor 950, an audio circuit 960, a wifi module 970, a processor 980, a power supply 990, and the like. Wherein, RF circuit 910 , memory 920 , input unit 930 , display unit 940 , sensor 950 , audio circuit 960 and wifi module 970 are respectively connected to processor 980 ; power supply 990 is used to provide electric energy for the entire electronic device 10 .

Specifically, the RF circuit 910 is used to receive and send signals; the memory 920 is used to store data instruction information; the input unit 930 is used to input information, and may specifically include a touch panel 931 and other input devices 932 such as operation buttons; the display unit 940 is It may include a display panel 941, etc.; the sensor 950 includes an infrared sensor, a laser sensor, etc., and is used to detect a user approach signal, a distance signal, etc.; a speaker 961 (may be a plurality of speakers 200 in the foregoing embodiments) and a microphone (or microphone) 962 pass through The audio circuit 960 is connected with the processor 980 for sending and receiving sound signals; the wifi module 970 is used for receiving and transmitting wifi signals, and the processor 980 is used for processing data information of electronic devices. For the specific structural features of the electronic device, please refer to the related description of the above embodiments, and no detailed introduction will be given here.

The above descriptions are only part of the embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent device or equivalent process conversion made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in other related All technical fields are equally included in the scope of patent protection of the present invention.

Claims

An electronic device, characterized in that the electronic device includes a casing, a first speaker, and a second speaker; the first speaker and the second speaker can be driven to emit sounds with the same vibration amplitude and opposite phases, and then A dipole sound source is formed; the inside of the housing is provided with a first sound channel and a second sound channel respectively communicated with the first speaker and the second speaker, and the surface of the housing is respectively provided with A first sound outlet and a second sound outlet communicated with the first sound outlet and the second sound outlet.
The electronic device according to claim 1, wherein the housing comprises a first surface, a second surface and a side; the first surface and the second surface are arranged opposite to each other, and the sides are respectively connected to the The first surface and the second surface are connected; the angle between the direction of the first sound outlet and the direction perpendicular to the first surface is less than 45 degrees, and the second sound outlet is set on the The side, or the included angle between the direction of the second sound outlet and the direction perpendicular to the second surface is less than 45 degrees.
The electronic device according to claim 1, wherein the volume of the first sound output channel is 0.5-2 times the volume of the second sound output channel; the length of the first sound output channel is the 0.5-2 times the length of the second sound channel.
The electronic device according to claim 1, wherein the area of the first sound outlet is 0.5-2 times the area of the second sound outlet.
The electronic device according to claim 1, wherein the distance between the centers of the first sound outlet and the second sound outlet is not greater than 30 mm.
The electronic device according to claim 1, wherein the electronic device comprises a first drive circuit and a second drive circuit, the first drive circuit is connected to the first speaker, and the second drive circuit is connected to the first speaker. The second speaker is connected, and the first driving circuit and the second driving circuit are respectively used to drive the sound signals emitted by the first speaker and the second speaker to attenuate or enhance at different frequency points.
The electronic device according to claim 2, characterized in that, the electronic device further comprises a third speaker, and the inside of the casing is provided with a third sound channel communicating with the third speaker, and the casing The surface of the surface is provided with a third sound hole communicating with the third sound channel.
The electronic device according to claim 7, wherein the third sound outlet is arranged on the side surface, or the distance between the orientation of the third sound outlet and the direction perpendicular to the second surface The included angle is less than 45 degrees.
The electronic device according to claim 7, wherein the volume of the first sound output channel is 0.5-2 times the volume of the third sound output channel; the length of the first sound output channel is the 0.5-2 times the length of the third sound channel.
The electronic device according to claim 7, wherein the area of the first sound outlet is 0.5-2 times the area of the third sound outlet; the first sound outlet and the first sound outlet The distance between the centers of the three sound holes shall not be greater than 30mm.
An electronic device, characterized in that the electronic device includes a casing, a first speaker, and a second speaker; the first speaker and the second speaker are configured as a dipole sound source; the inside of the casing A first sound output channel and a second sound output channel respectively communicated with the first speaker and the second speaker are provided, and the surface of the housing is provided with The first sound hole and the second sound hole connected by the two sound channels.
The electronic device according to claim 11, wherein the housing comprises a first surface, a second surface and a side; the first surface and the second surface are arranged opposite to each other, and the side surfaces are respectively connected to The first surface and the second surface are connected; the angle between the direction of the first sound outlet and the direction perpendicular to the first surface is less than 45 degrees, and the second sound outlet is set on the The side, or the included angle between the direction of the second sound outlet and the direction perpendicular to the second surface is less than 45 degrees.
The electronic device according to claim 11, wherein the volume of the first sound output channel is 0.5-2 times the volume of the second sound output channel; the length of the first sound output channel is the 0.5-2 times the length of the second sound channel.
The electronic device according to claim 11, wherein the area of the first sound outlet is 0.5-2 times the area of the second sound outlet.
The electronic device according to claim 11, wherein the distance between the centers of the first sound outlet and the second sound outlet is not greater than 30 mm.
The electronic device according to claim 11, wherein the electronic device comprises a first drive circuit and a second drive circuit, the first drive circuit is connected to the first speaker, and the second drive circuit is connected to the first speaker. The second speaker is connected, and the first driving circuit and the second driving circuit are respectively used to drive the sound signals emitted by the first speaker and the second speaker to attenuate or enhance at different frequency points.
The electronic device according to claim 12, wherein the electronic device further comprises a third speaker, and a third sound channel communicating with the third speaker is provided inside the housing, and the housing The surface of the surface is provided with a third sound hole communicating with the third sound channel; the third sound hole is arranged on the side, or the direction of the third sound hole is perpendicular to the second The angle between the directions of the surfaces is less than 45 degrees.
The electronic device according to claim 17, wherein the volume of the first sound output channel is 0.5-2 times the volume of the third sound output channel; the length of the first sound output channel is the 0.5-2 times the length of the third sound channel.
The electronic device according to claim 17, wherein the area of the first sound outlet is 0.5-2 times the area of the third sound outlet; the first sound outlet and the first sound outlet The distance between the centers of the three sound holes shall not be greater than 30mm.
An electronic device, characterized in that the electronic device includes a first loudspeaker and a second loudspeaker; the first loudspeaker and the second loudspeaker can be driven to emit sounds with the same vibration amplitude and opposite phases, thereby forming a dipole Sound source: the first speaker and the second speaker emit sound through the adjacent first sound outlet and second sound outlet.