Electronic device and its control method

Abstract

The present invention discloses an electronic device and a control method thereof. The electronic device includes a device housing, a microphone, a sound generating module, and a processing module. The device housing is provided with an installation cavity, a sound pickup hole and a sound outlet hole communicating with the installation cavity. The microphone is disposed in the installation cavity and corresponds to the sound pickup hole. The sound generating module is disposed in the installation cavity, is spaced from the microphone, and corresponds to the sound outlet hole. The sound generating module is provided with a first vibration component and a second vibration component, and the vibration direction of the first vibration component is set at an angle to the vibration direction of the second vibration component. The processing module is disposed in the installation cavity and is electrically connected to the microphone and the sound generating module. The processing module is configured to receive a voice signal from the microphone and convert it into an anti-phase voice signal. The present invention aims to provide an electronic device that avoids the leakage of the user's speech content, effectively protects the privacy and security of the user, and at the same time avoids affecting the attention or rest of others when the user is using it.

Description

Technical Field

[0001] The present invention relates to the technical field of electroacoustic conversion, and particularly to an electronic device and a control method thereof. Background Art

[0002] Telephony provides a ready-made means of long-distance communication for telephone users. A typical telephone or other audio communication device provides a microphone for the user to speak into, a communication link between the user and the other party, and a speaker for providing the voice of the other party to the user. Over time, audio communication technologies have come to include mobile phones such as cellular phones, satellite phones, and other devices.

[0003] When talking on a mobile phone or other audio communication device, users want to have a private conversation without being overheard by strangers. For example, an individual may use a cellular phone at a crowded airport, where it is difficult to find a private room or space. The user of the cellular phone may turn to face the wall or corner of the room, but nearby strangers may still overhear the conversation. The user may adopt various strategies, such as referring to the topic in a cryptic or clipped manner or speaking in a very soft tone, but these methods may disrupt the flow of the conversation with the party on the other end of the call. Such users desire a mobile phone in which they can talk privately and freely without being heard by unintended listeners whom the user does not want to overhear the conversation. In the related art, these problems of mobile phones face the privacy and security issue of the user's speech content leakage, and at the same time, there is also the problem that the user's speech sound affects the attention or rest of others. Summary of the Invention

[0004] The main object of the present invention is to provide an electronic device and a control method thereof, aiming to provide an electronic device that avoids the leakage of the user's speech content, effectively protects the privacy and security of the user, and at the same time avoids affecting the attention or rest of others when the user uses it.

[0005] To achieve the above object, the present invention proposes an electronic device, which includes:

[0006] A device housing, the device housing is provided with an installation cavity, a sound pickup hole and a sound outlet hole communicating with the installation cavity;

[0007] A microphone, the microphone is disposed in the installation cavity and is arranged corresponding to the sound pickup hole;

[0008] A sound generating module, the sound generating module is disposed in the installation cavity and is spaced from the microphone, and the sound generating module is arranged corresponding to the sound outlet hole, the sound generating module is provided with a first vibration component and a second vibration component, and the vibration direction of the first vibration component and the vibration direction of the second vibration component are arranged at an included angle; and

[0009] A processing module is disposed in the installation cavity and is electrically connected to the microphone and the sound generating module. The processing module is configured to receive the voice signal from the microphone and convert it into an anti-phase voice signal.

[0010] In one embodiment, the device housing includes:

[0011] A front shell having a fixing groove, the sound pickup hole, and the sound outlet hole. The sound pickup hole and the sound outlet hole communicate with the fixing groove, and the sound generating module and the microphone are spaced apart and disposed in the fixing groove; and

[0012] A rear cover that covers the notch of the fixing groove and encloses the installation cavity with the fixing groove.

[0013] In one embodiment, the side wall of the fixing groove includes a first side wall and a second side wall that are connected. The first side wall and the second side wall are disposed at an angle. The sound pickup hole is formed in the first side wall, and the sound outlet hole is formed in the first side wall and / or the second side wall.

[0014] In one embodiment, the sound outlet hole includes a first sound outlet hole and a second sound outlet hole. The first sound outlet hole is disposed in the first side wall and is spaced from the sound pickup hole. The second sound outlet hole is disposed in the second side wall; the first vibration component corresponds to the first sound outlet hole, and the second vibration component corresponds to the second sound outlet hole.

[0015] In one embodiment, a support platform protrudes from the bottom wall of the fixing groove. The support platform encloses a limiting groove. The front shell further has a sound outlet channel communicating the first sound outlet hole and the limiting groove. Part of the sound generating module is limited in the limiting groove, and the first vibration component faces the limiting groove;

[0016] And / or, the side wall of the fixing groove further has a limiting inclined surface. The second sound outlet hole penetrates the limiting inclined surface. The sound generating module is in limiting abutment with the limiting inclined surface, and the second vibration component faces the limiting inclined surface.

[0017] In one embodiment, the sound generating module includes:

[0018] A housing including a first housing and a second housing disposed at an angle;

[0019] A magnetic circuit system connected to the first housing and the second housing; and

[0020] A vibration system, the vibration system includes the first vibration component and the second vibration component, the first vibration component is connected to the first housing and is opposite to the magnetic circuit system, the second vibration component is connected to the second housing and is opposite to the magnetic circuit system, and the vibration direction of the first vibration component is perpendicular to the vibration direction of the second vibration component.

[0021] In one embodiment, the magnetic circuit system includes:

[0022] A chassis;

[0023] A first magnetic circuit part, the first magnetic circuit part is opposite to and spaced from the first vibration component, the first magnetic circuit part includes a central magnetic circuit part and a side magnetic circuit part provided on the side of the chassis facing the outer shell, the side magnetic circuit part is provided outside the central magnetic circuit part and is spaced from the central magnetic circuit part to form a first magnetic gap; and

[0024] A second magnetic circuit part, the second magnetic circuit part is provided on the chassis, opposite to and spaced from the second vibration component, the second magnetic circuit part is opposite to and spaced from a part of the central magnetic circuit part and a part of the side magnetic circuit part to cooperate to form a second magnetic gap.

[0025] And / or, the first vibration component includes a first diaphragm and a first voice coil, the first diaphragm is connected to the first housing, the first diaphragm is provided with a conductive layer, one end of the first voice coil is connected to the first diaphragm, the other end of the first voice coil is suspended in the first magnetic gap, and the lead of the first voice coil is electrically connected to the conductive layer;

[0026] And / or, the second vibration component includes a second diaphragm and a second voice coil, the second diaphragm is connected to the second housing, the second diaphragm is provided with a conductive layer, one end of the second voice coil is connected to the second diaphragm, the other end of the second voice coil is suspended in the second magnetic gap, and the lead of the second voice coil is electrically connected to the conductive layer.

[0027] And / or, the second vibration assembly includes a diaphragm assembly, a second voice coil, and a connecting rod. The diaphragm assembly is connected to the second housing. The second voice coil is disposed in the second magnetic gap. One end of the connecting rod is connected to the diaphragm assembly, and the other end of the connecting rod extends into the second magnetic gap and is connected to the second voice coil.

[0028] In one embodiment, the processing module includes:

[0029] An audio processing module, which is electrically connected to the microphone and the sound generating module. The audio processing module is configured to receive the voice signal from the microphone and convert it into an anti-phase voice signal;

[0030] A central processing unit, which is electrically connected to the audio processing module and is configured to receive the voice signal processed by the audio processing module; and

[0031] A transmitting module, which is electrically connected to the central processing unit and is configured to transmit the voice signal.

[0032] In one embodiment, the transmitting module includes a radio frequency processing module and an antenna. The radio frequency processing module is electrically connected to the central processing unit and the antenna. The radio frequency processing module is configured to receive the signal from the central processing unit, and the antenna is configured to transmit the voice signal.

[0033] The present invention also provides a control method for the above-mentioned electronic device. The control method for the electronic device includes:

[0034] The microphone receives the voice information output by the user and generates a first voice signal;

[0035] The processing module receives the first voice signal and processes the first voice signal to convert it into an anti-phase voice signal;

[0036] The sound generating module receives the anti-phase voice signal and generates anti-phase voice information. The anti-phase voice information is opposite to the voice information in phase to form a sound dipole effect, so that the sound generating module outputs the anti-phase voice information to cancel the voice information output by the user.

[0037] In one embodiment, the control method for the electronic device further includes:

[0038] The microphone receives the anti-phase voice information and generates a second voice signal;

[0039] The processing module receives the second voice signal and compares the second voice signal with the first voice signal to determine the strength of the sound dipole effect;

[0040] Control and adjust the sound volume of the sound generating module for outputting the anti-phase voice information.

[0041] In one embodiment, the control method of the electronic device further includes:

[0042] The microphone receives an ambient voice signal and generates a third voice signal;

[0043] The processing module receives the third voice signal to determine the ambient scene and controls the sound generating module to start or stop;

[0044] When the sound generating module is started, control and adjust the sound volume of the sound generating module for outputting the anti-phase voice information.

[0045] The electronic device of the technical solution of the present invention installs an installation cavity in the device housing, thereby using the installation cavity to install, fix and protect components such as a microphone, a sound generating module and a processing module. By providing a sound pickup hole and a sound outlet hole communicating with the installation cavity on the device housing, the microphone is arranged corresponding to the sound pickup hole, so as to pick up the voice information output by the user by using the sound pickup hole, and the sound generating module is arranged corresponding to the sound outlet hole, so as to facilitate the sound output by the sound generating module to be smoothly transmitted to the outside through the sound outlet hole; by providing a processing module, the processing module is electrically connected to the microphone and the sound generating module, so as to receive the voice signal of the microphone by using the processing module and convert it into an anti-phase voice signal, and transmit the anti-phase voice signal to the sound generating module, so that the anti-phase voice signal output by the sound generating module is opposite in phase to the voice information output by the user picked up by the microphone, so as to form a sound dipole effect, so that the anti-phase voice signal and the voice information output by the user cancel each other out, so that when the user outputs voice and reaches the ear holes of people around the user, they cancel each other out, achieving the purpose of avoiding the leakage of the voice information output by the user and realizing the safety effect of user privacy protection; at the same time, by providing a first vibration component and a second vibration component on the sound generating module, the vibration direction of the first vibration component is arranged at an angle with the vibration direction of the second vibration component, so that when the first vibration component and / or the second vibration component of the sound generating module outputs an anti-phase voice signal, it can effectively cancel out the voice information output by the user. Description of the Drawings

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0047] Figure 1 It is a schematic structural diagram of an electronic device in an embodiment of the present invention;

[0048] Figure 2 Schematic diagram of the front top view of an electronic device in an embodiment of the present invention;

[0049] Figure 3 is Figure 2 Schematic cross-sectional view taken along line A-A in

[0050] Figure 4 is Figure 2 Schematic cross-sectional view taken along line B-B in

[0051] Figure 5 Schematic diagram of the structure of an electronic device without the back cover in an embodiment of the present invention;

[0052] Figure 6 Schematic cross-sectional view of the sound module in an embodiment of the present invention;

[0053] Figure 7 Schematic diagram of the operation of an electronic device in an embodiment of the present invention;

[0054] Figure 8 Schematic diagram of the application scenario of an electronic device in an embodiment of the present invention.

[0055] Explanation of the reference numerals in the drawings:

[0056] Label Name Label Name Label Name 100 Electronic device 126 Limiting inclined plane 3311 First diaphragm 1 Device housing 13 Rear cover 3312 First voice coil 11 Installation cavity 2 Microphone 332 Second vibration component 12 Front shell 3 Sound generating module 3321 Diaphragm assembly 121 Sound pickup hole 31 Outer shell 3322 Second voice coil 122 Sound outlet hole 32 Magnetic circuit system 3323 Connecting rod 1221 First sound outlet hole 321 Basket 4 Processing module 1222 Second sound outlet hole 322 First magnetic circuit part 41 Audio processing module 123 Fixing groove 3221 First magnetic gap 42 Central processing unit 1231 First side wall 323 Second magnetic circuit part 43 Transmitting module 1232 Second side wall 3231 Second magnetic gap 431 Radio frequency processing module 124 Supporting platform 33 Vibration system 432 Antenna 125 Sound output channel 331 First vibration component 5 Screen

[0057] The realization of the object of the present invention, functional features and advantages will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0058] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0059] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0060] At the same time, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously.

[0061] In addition, in the present invention, descriptions such as "first", "second", etc. are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0062] Telephony provides a ready-made means of long-distance communication for telephone users. A typical telephone or other audio communication device provides a microphone for the user to speak into, a communication link between the user and the other party, and a speaker to provide the voice of the other party to the user. Over time, audio communication technology has come to include mobile phones, such as cellular phones, satellite phones, and other devices.

[0063] Smart terminals have become an important communication tool for people to connect with each other in modern society and are indispensable devices for people to obtain information in various life scenarios. When making a voice call in a closed and relatively crowded place such as an office, a movie theater, a subway, a bus, an elevator car, etc., there are privacy and security issues regarding the leakage of the conversation content, and there are also problems that the speaking voice may affect the attention or rest of others.

[0064] When talking on a mobile phone or other audio communication device, the user wishes to have a private conversation without being overheard by strangers. For example, an individual may use a cellular phone at a crowded airport, where it is difficult to find a private room or space. The user of the cellular phone may turn to face the wall or corner of the room, but a nearby stranger may still overhear the conversation. The user may adopt various strategies, such as referring to the topic in a veiled or clipped manner or speaking in a very soft tone, but these methods may disrupt the flow of the conversation with the party at the other end of the conversation. Such a user wishes to have a mobile phone where they can talk privately and freely without being heard by an unintended audience that the user does not want to overhear the conversation. These same problems apply to any number of audio electronic devices, such as two-way radios, personal tape recorders, laptop computers, and other devices used in the presence of such unintended audiences.

[0065] In the related art, these problems existing in mobile phones face privacy and security issues regarding the leakage of the user's conversation content, and there are also problems that the user's speaking voice may affect the attention or rest of others.

[0066] Based on the above concept and problems, the present invention provides an electronic device 100. It can be understood that the electronic device 100 can be a smart terminal, and the smart terminal device can be a device with call and external audio functions such as a mobile phone, a head-mounted device (such as AR / VR), smart glasses, a voice recorder, a laptop computer, etc., which is not limited herein.

[0067] Please refer to Figures 1 to 8 As shown, in an embodiment of the present invention, the electronic device 100 includes a device housing 1, a microphone 2, a sound generating module 3, and a processing module 4. Among them, the device housing 1 is provided with an installation cavity 11, a sound pickup hole 121 and a sound outlet hole 122 communicating with the installation cavity 11. The microphone 2 is disposed in the installation cavity 11 and corresponds to the sound pickup hole 121. The sound generating module 3 is disposed in the installation cavity 11 and is spaced from the microphone 2, and the sound generating module 3 corresponds to the sound outlet hole 122. The sound generating module 3 is provided with a first vibration component 331 and a second vibration component 332, and the vibration direction of the first vibration component 331 and the vibration direction of the second vibration component 332 are arranged at an angle. The processing module 4 is disposed in the installation cavity 11 and is electrically connected to the microphone 2 and the sound generating module 3. The processing module 4 is configured to receive a voice signal from the microphone 2 and convert it into an anti-phase voice signal.

[0068] In this embodiment, the device housing 1 is the outer shell of the electronic device 100, which is used to install and protect other components such as the microphone 2, the sound generating module 3, and the processing module 4. That is, the device housing 1 provides an installation basis for other components such as the microphone 2, the sound generating module 3, and the processing module 4. It can be understood that the device housing 1 can be an outer shell, a cover, a box body or other structures with an installation cavity 11, which is not limited herein. In order to achieve a sealing and waterproof effect, the device housing 1 can be an integral structure. Of course, in order to facilitate the installation of other components such as the microphone 2, the sound generating module 3, and the processing module 4, the device housing 1 can also be provided in a split manner, so as to improve the disassembly and assembly convenience of other components such as the microphone 2, the sound generating module 3, and the processing module 4.

[0069] It can be understood that in order to improve the beauty and appearance of the electronic device 100, the outer wall of the device housing 1 can be sprayed with a coating such as a beautiful pattern or color. Of course, a structure such as a beautiful pattern or color sticker can also be attached, which is not limited herein. In this embodiment, in order to realize the intelligence and visualization of the electronic device 100, the electronic device 100 further includes a screen 5, and the screen 5 is disposed on the outer wall of the device housing 1 for the user to view or operate, etc., which is not limited herein.

[0070] In this embodiment, the microphone 2 may be in the structure of a MIC or a miniature MIC, etc., and is a device that picks up the sound information output by the user and converts the sound information into an electrical signal. The sound generating module 3 may be in the structure of a speaker module or a sound generating device module, etc. It can be understood that by providing a first vibration component 331 and a second vibration component 332 on the sound generating module 3, the vibration direction of the first vibration component 331 and the vibration direction of the second vibration component 332 are arranged at an angle, so that the sound generating module 3 forms two vibration radiation surfaces arranged at an angle, which not only realizes the multi-functional application, but also effectively improves the sound generating effect of the sound generating module 3.

[0071] It can be understood that by providing a sound pickup hole 121 and a sound outlet hole 122 on the device housing 1, the first vibration component 331 and the second vibration component 332 of the sound generating module 3 are made to correspond to the sound outlet hole 122, so that the sound outlet hole 122 can cooperate with the first vibration component 331 and the second vibration component 332 of the sound generating module 3 to improve the sound generating effect of the electronic device 100 and improve the privacy protection effect. At the same time, it is convenient for the microphone 2 to pick up the sound information output by the user through the sound pickup hole 121.

[0072] When the user uses the electronic device 100, the sound information output by the user will be heard by the surrounding people around, resulting in the ineffective protection of personal privacy and affecting the privacy security of the user. In order to avoid serious leakage of the sound output by the user when using the electronic device 100 and further improve the privacy protection, in one embodiment, the sound outlet hole 122 and the mouth for outputting the sound information by the user are configured to form a sound dipole effect between the sound emitted from the sound outlet hole 122 of the electronic device 100 and the sound information output by the user.

[0073] It can be understood that a sound dipole refers to two sound sources that are very close to each other, their vibration amplitudes are the same, but their phases are opposite. The combined sound source composed of such two point sound sources is called a sound dipole. And the electronic device 100 of the present invention exactly utilizes the anti-phase leakage reduction principle of the sound dipole, so that the sound emitted from the sound source of the sound outlet hole 122 cancels out the sound information output by the user in the distance, achieving the purpose of leakage reduction. That is to say, the condition for the sound outlet hole 122 and the user's mouth to form a sound dipole effect is that the distance between the sound outlet hole 122 and the user's mouth is much smaller than the distance from the above two to the ear holes of the people around the user. In this way, for the ear holes of the people around the user, the distance between the sound outlet hole 122 and the user's mouth can be ignored, that is to say, the distances from the two sound sources of the sound outlet hole 122 and the user's mouth to the ear holes of the people around the user are approximately equal. Therefore, such two sound sources with opposite phases cancel each other out when reaching the ear holes of the people around the user, achieving the purpose of leakage reduction.

[0074] In this embodiment, by setting the positions of the sound outlet hole 122 and the sound pickup hole 121, the distances between the sound outlet hole 122 and the sound pickup hole 121 and the user's mouth are made close enough. At the same time, since the two sound emission surfaces of the first vibration component 331 and the second vibration component 332 of the sound emission module 3 can be controlled, the dipole effect is achieved, reducing the leakage of the user's output sound information and realizing privacy protection.

[0075] The electronic device 100 of the present invention installs, fixes, and protects components such as the microphone 2, the sound emission module 3, and the processing module 4 by providing an installation cavity 11 in the device housing 1. By providing a sound pickup hole 121 and a sound outlet hole 122 communicating with the installation cavity 11 on the device housing 1, the microphone 2 is arranged corresponding to the sound pickup hole 121, so as to pick up the voice information output by the user by using the sound pickup hole 121, and the sound emission module 3 is arranged corresponding to the sound outlet hole 122, so as to facilitate the sound output by the sound emission module 3 to smoothly pass out of the sound outlet hole 122 to the outside; by providing the processing module 4, the processing module 4 is electrically connected to the microphone 2 and the sound emission module 3, so as to receive the voice signal of the microphone 2 by using the processing module 4 and convert it into an anti-phase voice signal, and transmit the anti-phase voice signal to the sound emission module 3, so that the anti-phase voice signal output by the sound emission module 3 is opposite in phase to the voice information output by the user picked up by the microphone 2, so as to form a sound dipole effect, so that the anti-phase voice signal and the voice information output by the user cancel each other out. In this way, when the user outputs voice and reaches the ear holes of the people around the user, they can cancel each other out, achieving the purpose of avoiding the leakage of the user's output voice information and realizing the safety effect of user privacy protection; at the same time, by providing a first vibration component 331 and a second vibration component 332 on the sound emission module 3, the vibration direction of the first vibration component 331 and the vibration direction of the second vibration component 332 are arranged at an included angle, so that when the first vibration component 331 and / or the second vibration component 332 of the sound emission module 3 outputs an anti-phase voice signal, it can effectively cancel out the voice information output by the user.

[0076] In one embodiment, the device housing 1 includes a front shell 12 and a rear cover 13. Among them, the front shell 12 is provided with a fixing groove 123, a sound pickup hole 121, and a sound outlet hole 122. The sound pickup hole 121 and the sound outlet hole 122 communicate with the fixing groove 123. The sound emission module 3 and the microphone 2 are arranged at intervals in the fixing groove 123. The rear cover 13 covers the notch of the fixing groove 123 and encloses the installation cavity 11 with the fixing groove 123.

[0077] In this embodiment, as Figures 3 to 5As shown in the figure, by setting the device housing 1 as a split structure of a front shell 12 and a rear cover 13, the disassembly and assembly convenience of components such as the microphone 2, the sound generating module 3, and the processing module 4 can be facilitated. It can be understood that the front shell 12 and the rear cover 13 can be fixed by bonding or welding, etc., which can not only improve the installation stability but also improve the sealing effect. Of course, in order to improve the disassembly and assembly convenience, the front shell 12 and the rear cover 13 can also be detachably connected, such as by snap connection, plug-in fit, screw connection, or pin connection, etc. In order to further improve the sealing effect, a sealing cavity or a sealing glue layer and other structures are provided at the connection between the front shell 12 and the rear cover 13, which is not limited herein.

[0078] It can be understood that the front shell 12 is provided with a fixing groove 123. By respectively providing a sound pickup hole 121 and a sound outlet hole 122 on the groove wall of the fixing groove 123, the sound pickup hole 121 and the sound outlet hole 122 are made to be close to each other, so that while the sound pickup hole 121 picks up the sound information output by the user, the anti-phase voice information output by the sound outlet hole 122 abuts against the sound information output by the user. In this embodiment, the sound generating module 3 and the microphone 2 are installed in the fixing groove 123, so that the first vibration component 331 and the second vibration component 332 are corresponding to the sound outlet hole 122, so that the sound emitted by the first vibration component 331 and the second vibration component 332 of the sound generating module 3 can smoothly pass out from the sound outlet hole 122.

[0079] In this embodiment, the side of the front shell 12 of the device housing 1 facing away from the rear cover 13 is the front side, the side wall of the fixing groove 123 of the front shell 12 is the top or side or bottom of the device housing 1, the sound outlet hole 122 is located at the front bottom or side or bottom of the device housing 1, and the sound outlet hole 122 is located at the side or bottom of the device housing 1. Optionally, the sound pickup hole 121 and the sound outlet hole 122 are located on two adjacent side surfaces of the device housing 1.

[0080] In one embodiment, as Figure 1 and Figure 8 shown, the side wall of the fixing groove 123 includes a first side wall 1231 and a second side wall 1232 connected to each other. The first side wall 1231 and the second side wall 1232 are arranged at an angle. The sound pickup hole 121 is opened on the first side wall 1231, and the sound outlet hole 122 is opened on the first side wall 1231 and / or the second side wall 1232.

[0081] In this embodiment, the sound pickup hole 121 and the sound outlet hole 122 can be simultaneously arranged on the first side wall 1231. At this time, in order to avoid crosstalk, the sound pickup hole 121 and the sound outlet hole 122 are arranged at intervals. Of course, the sound pickup hole 121 and the sound outlet hole 122 can also be respectively arranged on the adjacent first side wall 1231 and second side wall 1232, so as to effectively avoid the crosstalk phenomenon.

[0082] It can be understood that the sound outlet hole 122 can be one or more. When there is one sound outlet hole 122, the sound outlet hole 122 is opened on the first side wall 1231 or the second side wall 1232; when there are multiple sound outlet holes 122, the sound outlet holes 122 are opened on the first side wall 1231, the second side wall 1232, and the first side wall 1231 and the second side wall 1232, etc., which is not limited here.

[0083] It should be noted that when there is one sound outlet hole 122 and the sound outlet hole 122 is opened on the first side wall 1231, at this time, the sound outlet hole 122 corresponds to the first vibration component 331. Thus, the anti-phase voice signal output by the first vibration component 331 of the sound generating module 3 is opposite in phase to the voice information output by the user picked up by the microphone 2, so as to form a sound dipole effect, so that the anti-phase voice signal and the voice information output by the user cancel each other out. In this way, when the user outputs voice, it can cancel each other out when reaching the ear holes of people around the user, achieving the purpose of avoiding the leakage of the voice information output by the user and achieving the effect of protecting the privacy and security of the user. When the sound outlet hole 122 is opened on the second side wall 1232, at this time, the sound outlet hole 122 corresponds to the second vibration component 332. Thus, the anti-phase voice signal output by the second vibration component 332 of the sound generating module 3 is opposite in phase to the voice information output by the user picked up by the microphone 2, so as to form a sound dipole effect, so that the anti-phase voice signal and the voice information output by the user cancel each other out. In this way, when the user outputs voice, it can cancel each other out when reaching the ear holes of people around the user, achieving the purpose of avoiding the leakage of the voice information output by the user and achieving the effect of protecting the privacy and security of the user.

[0084] It can be understood that when there are multiple sound outlet holes 122, the multiple sound outlet holes 122 are simultaneously opened on the first side wall 1231 and the second side wall 1232. At this time, the sound outlet holes 122 on the first side wall 1231 correspond to the first vibration component 331, and the sound outlet holes 122 on the second side wall 1232 correspond to the second vibration component 332. Thus, the anti-phase voice signals output simultaneously by the first vibration component 331 and the second vibration component 332 of the sound generating module 3 are opposite in phase to the voice information output by the user picked up by the microphone 2, so as to form a sound dipole effect, that is, the first vibration component 331 and the second vibration component 332 output anti-phase voice signals with the same phase, so that the anti-phase voice signal and the voice information output by the user cancel each other out. In this way, when the user outputs voice, it can cancel each other out when reaching the ear holes of people around the user, achieving the purpose of avoiding the leakage of the voice information output by the user and achieving the effect of protecting the privacy and security of the user. At the same time, the first vibration component 331 and the second vibration component 332 work simultaneously, thereby increasing the loudness of the anti-phase voice signal output by the sound outlet hole 122.

[0085] In one embodiment, as Figure 1 、 Figure 3 、 Figure 4 andFigure 8 As shown, the sound hole 122 includes a first sound hole 1221 and a second sound hole 1222. The first sound hole 1221 is arranged on the first side wall 1231 and is separated from the sound pickup hole 121. The second sound hole 1222 is arranged on the second side wall 1232. The first vibration component 331 corresponds to the first sound hole 1221, and the second vibration component 332 corresponds to the second sound hole 1222.

[0086] In this embodiment, two sound holes 122 are provided so that the first sound hole 1221 and the second sound hole 1222 of the two sound holes 122 are respectively provided on the adjacent first side wall 1231 and the second side wall 1232, so that the first vibration component 331 of the sound module 3 corresponds to the first sound hole 1221, and the second vibration component 332 corresponds to the second sound hole 1222. In this way, the first sound hole 1221 and the second sound hole 1222 can be used in conjunction with the first vibration component 331 and the second vibration component 332 of the sound module 3 to improve the sound effect of the electronic device 100 and improve the privacy protection effect.

[0087] It can be understood that when the user is on a call, the second vibration component 332 can be selected to work. The anti-phase voice signal output by the second vibration component 332 is opposite in phase to the voice information output by the user picked up by the microphone 2 to form an acoustic dipole effect, so that the anti-phase voice signal and the voice information output by the user cancel each other out. In this way, when the user outputs the voice, they can cancel each other out when they reach the ear holes of people around the user, thereby achieving the purpose of avoiding leakage of the user's output voice information and protecting the user's privacy and security. Since the second sound outlet 1222 and the sound pickup hole 121 are located on different side walls and are far apart, interference and crosstalk caused by sound waves can be avoided. When the electronic device is in the sound output mode, the first vibration component 331 can be selected to vibrate and sound, or the first vibration component 331 and the second vibration component 332 can be selected to vibrate and sound at the same time to achieve sound output. That is, when making a call, only the second vibration component 332 is controlled to output an anti-phase voice signal to form an acoustic dipole effect with the user's voice, while the first vibration component 331 does not work; in the external speaker mode, the first vibration component 331 can be controlled to vibrate and make sound, thereby realizing the different uses and functions of the first vibration unit 331 and the second vibration unit 332, and the first vibration unit 331 and the second vibration unit 332 can also be controlled to make sound at the same time to increase the loudness of the sound when speaking externally.

[0088] In addition, when the user is on a call, the first vibration component 331 can be selected to work. The anti-phase voice signal output by the first vibration component 331 is opposite in phase to the voice information output by the user picked up by the microphone 2 to form an acoustic dipole effect, so that the anti-phase voice signal and the voice information output by the user cancel each other out. In this way, when the user's voice output reaches the ear holes of people around the user, they can cancel each other out, thereby avoiding the leakage of the user's voice information and protecting the user's privacy and security. When the electronic device is in the sound external speaker mode, the first vibration component 331 and / or the second vibration component 331 can be selected to vibrate and make sounds to achieve a variety of audio playback effects.

[0089] In one embodiment, a support platform 124 is convexly provided on the bottom wall of the fixing groove 123, and the support platform 124 is enclosed to form a limiting groove. The front shell 12 is also provided with a sound outlet channel 125 connecting the first sound outlet hole 1221 and the limiting groove. Part of the sound module 3 is limited in the limiting groove, and the first vibration component 331 faces the limiting groove.

[0090] In this embodiment, if Figure 3 and Figure 4 As shown, by providing a support platform 124, the support platform 124 is used to install, fix and support the sound module 3. By providing a sound outlet channel 125 in the front shell 12, one end of the sound outlet channel 125 is connected to the first sound outlet hole 1221, and the other end of the sound outlet channel 125 is connected to the limiting groove. In this way, when the sound module 3 is limited in the limiting groove and the first vibration component 331 faces the limiting groove, the sound emitted by the first vibration component 331 can be smoothly transmitted through the sound outlet channel 125 and the first sound outlet hole 1221.

[0091] Optionally, one end of the sound outlet channel 125 away from the first sound outlet hole 1221 passes through the bottom wall of the limiting groove. In this embodiment, the extension direction of the sound outlet channel 125 is the same as the axial direction of the first sound outlet hole 1221. Optionally, the vibration direction of the first vibration component 331 is perpendicular to the axial direction of the first sound outlet hole 1221.

[0092] In order to improve the sealing effect, in one embodiment, as Figure 3 and Figure 4 As shown, the electronic device 100 further includes a first sealing member, which is sandwiched between the sound module 3 and the bottom wall of the limiting groove. It can be understood that the first sealing member can be selected as a sealing foam.

[0093] In one embodiment, the side wall of the fixing groove 123 is further provided with a limiting slope 126 , the second sound outlet 1222 passes through the limiting slope 126 , the sound module 3 is limitedly abutted against the limiting slope 126 , and the second vibration component 332 faces the limiting slope 126 .

[0094] In this embodiment, if Figure 4As shown in the figure, by providing a limiting inclined surface 126 on the side wall of the fixed slot 123, the second sound outlet hole 1222 penetrates through the limiting inclined surface 126, so that the sound generating module 3 can be conveniently and limitably abutted against the limiting inclined surface 126, thereby improving the installation stability of the sound generating module 3. At the same time, the second vibration assembly 332 faces the limiting inclined surface 126 and is aligned with the second sound outlet hole 1222, so that the sound emitted by the second vibration assembly 332 can smoothly pass out through the second sound outlet hole 1222.

[0095] In order to improve the sealing effect, in one embodiment, as Figure 4 shown, the electronic device 100 further includes a second sealing member, and the second sealing member is clamped between the sound generating module 3 and the limiting inclined surface 126. Optionally, the second sealing member is a sealing foam. It can be understood that by providing the limiting inclined surface 126, when the front shell 12 and the rear cover 13 of the device housing 1 are assembled, the limiting inclined surface 126 of the front shell 12 can be further pressed against the sound generating module 3 by pressing the front shell 12 and the rear cover 13, thereby further pressing the second sealing member and improving the sealing effect.

[0096] Optionally, the second sound outlet hole 1222 is inclined, the extending axial direction of the second sound outlet hole 1222 is perpendicular to the limiting inclined surface 126, and the included angle formed by the extending axial direction of the second sound outlet hole 1222 and the axial direction of the first sound outlet hole 1221 is less than 90°. It can be understood that by setting it in this way, the distance between the second sound outlet hole 1222 and the first sound outlet hole 1221 on the surface of the device housing 1 can be reduced, so as to facilitate the output of anti-phase voice information with the same phase.

[0097] In one embodiment, as Figures 2 to 4 shown, an installation groove is provided on the side of the front shell 12 facing away from the rear cover 13. The electronic device 100 further includes a screen 5, and the screen 5 is received and limited in the installation groove. The first sound outlet hole 1221 is provided adjacent to the edge of the screen 5. It can be understood that by providing an installation groove on the side of the front shell 12 facing away from the rear cover 13, while using the installation groove to install and fix the screen 5, it is convenient for the screen 5 to be electrically connected to the sound generating module 3 or other control circuits in the installation cavity 11. Optionally, the first sound outlet hole 1221 is provided adjacent to the edge of the screen 5.

[0098] In one embodiment, the sound generating module 3 includes a housing 31, a magnetic circuit system 32 and a vibration system 33. Among them, the housing 31 includes a first housing and a second housing arranged at an angle. The magnetic circuit system 32 is connected to the first housing and the second housing. The vibration system 33 includes a first vibration assembly 331 and a second vibration assembly 332. The first vibration assembly 331 is connected to the first housing and is opposite to the magnetic circuit system 32. The second vibration assembly 332 is connected to the second housing and is opposite to the magnetic circuit system 32. The vibration direction of the first vibration assembly 331 is perpendicular to the vibration direction of the second vibration assembly 332.

[0099] In this embodiment, as Figure 3 , Figure 4 and Figure 6 shown, the housing 31 is used to install, fix, support and protect components such as the vibration system 33 and the magnetic circuit system 32. That is, the housing 31 provides an installation basis for components such as the vibration system 33 and the magnetic circuit system 32. It can be understood that the housing 31 can be a structure such as an installation shell, a housing or a box body with an installation cavity. That is, the housing 31 defines a receiving space, which is not limited herein.

[0100] As Figure 6 shown, the housing 31 includes a first housing and a second housing arranged at an angle. Optionally, the first housing and the second housing are integrally formed structures, so as to improve the structural strength and stability of the housing 31. It can be understood that the first housing and the second housing enclose to form an installation cavity, and the installation cavity can be a through cavity or a through groove structure. Optionally, the first housing and the second housing are arranged perpendicular to each other.

[0101] In this embodiment, the first housing has a rectangular structure. The first housing has two opposite long sides and two short sides. The two ends of the short sides are respectively connected to the two long sides, and the two ends of the long sides are respectively connected to the two short sides. It can be understood that the second housing is connected to the long side or the short side of the first housing, so that the second housing is arranged perpendicular to the first housing.

[0102] It can be understood that the second housing can be optionally a rectangular structure. The second housing has two opposite long sides and two short sides. The two ends of the short sides are respectively connected to the two long sides, and the two ends of the long sides are respectively connected to the two short sides. In this embodiment, the first housing and the second housing share a long side or a short side. The two long sides and two short sides of the first housing define a first opening, and the two long sides and two short sides of the second housing define a second opening. The first opening and the second opening are respectively communicated with the installation cavity. Optionally, the first opening and the second opening are located on two adjacent surfaces of the housing 31.

[0103] It should be noted that when the housing 31 is a metal part, the magnetic circuit system 32 and the housing 31 are fixed by bonding or welding. In another embodiment, when the housing 31 is injection molded with plastic, the side magnetic conductive plate of the magnetic circuit system 32 is first injection molded as an insert in the housing 31, or the magnetic circuit system 32 and the housing 31 are fixed by bonding, and then other parts are bonded and fixed, which is not limited herein.

[0104] In this embodiment, as Figure 6As shown, the magnetic circuit system 32 is disposed in the installation cavity of the housing 31 and is connected to the first housing and the second housing of the housing 31. The vibration system 33 is connected to the first housing and the second housing of the housing 31 and is opposite to the magnetic circuit system 32. It can be understood that the first vibration component 331 of the vibration system 33 is connected to the first housing and covers the first opening, and the second vibration component 332 is connected to the second housing and covers the second opening. In this way, the first housing and the second housing of the housing 31, the first vibration component 331 and the second vibration component 332, and the magnetic circuit system 32 jointly enclose a vibration space.

[0105] It can be understood that the first vibration component 331 is opposite to the magnetic circuit system 32, and the second vibration component 332 is opposite to the magnetic circuit system 32, so that the first vibration component 331 and the second vibration component 332 share the magnetic circuit system 32, thereby improving the magnetic field utilization rate and reducing the cost of the sound generating module 3. In this embodiment, the vibration directions of the first vibration component 331 and the second vibration component 332 are arranged at an angle. Optionally, the vibration directions of the first vibration component 331 and the second vibration component 332 are arranged perpendicular to each other.

[0106] In this embodiment, the magnetic circuit system 32 provides a magnetic field and a driving force for the first vibration component 331 and the second vibration component 332 to drive the first vibration component 331 and the second vibration component 332 to vibrate and generate sound respectively, thereby improving the sound output effect.

[0107] In the present invention, the sound generating module 3 of the electronic device 100 sets the housing 31 as a first housing and a second housing arranged at an angle, so that the first housing and the second housing are an integrally formed structure and enclose an installation cavity. Thereby, while installing and fixing the magnetic circuit system 32 by using the installation cavity, the structural strength of the housing 31 is improved. At the same time, the vibration system 33 is provided with a first vibration component 331 and a second vibration component 332, so that the first vibration component 331 is connected to the first housing and is opposite to the magnetic circuit system 32, and the second vibration component 332 is connected to the second housing and is opposite to the magnetic circuit system 32. In this way, the magnetic circuit system 32 provides a magnetic field and a driving force for the first vibration component 331 and the second vibration component 332 at the same time, so as to improve the magnetic field utilization rate and reduce the cost. Further, the vibration directions of the first vibration component 331 and the second vibration component 332 are arranged at an angle, so that the vibration system 33 forms two vibration radiation surfaces arranged at an angle to each other, which not only realizes the multi-functional application, but also effectively improves the sound output effect.

[0108] In one embodiment, the magnetic circuit system 32 includes a basin frame 321, a first magnetic circuit portion 322 and a second magnetic circuit portion 323, wherein the first magnetic circuit portion 322 is opposite to and spaced from the first vibration component 331, the first magnetic circuit portion 322 includes a central magnetic circuit portion and a side magnetic circuit portion arranged on the side of the basin frame 321 facing the outer shell 31, the side magnetic circuit portion is arranged on the outer side of the central magnetic circuit portion and spaced from the central magnetic circuit portion to form a first magnetic gap 3221, the second magnetic circuit portion 323 is arranged on the basin frame 321, opposite to and spaced from the second vibration component 332, the second magnetic circuit portion 323 is opposite to and spaced from part of the central magnetic circuit portion and part of the side magnetic circuit portion to cooperate to form a second magnetic gap 3231.

[0109] In this embodiment, if Figure 3 , Figure 4 and Figure 6 As shown, the frame 321 of the magnetic circuit system 32 provides an installation and fixing base for the first magnetic circuit part 322 and the second magnetic circuit part 323. The first magnetic circuit part 322 and the second magnetic circuit part 323 are arranged on the side of the frame 321 facing the outer shell 31. The magnetic circuit system 32 is connected to the first shell and the second shell of the outer shell 31 through the first magnetic circuit part 322 and the second magnetic circuit part 323.

[0110] It is understandable that the first magnetic circuit portion 322 and the second magnetic circuit portion 323 can be connected and fixed to the basin frame 321 by bonding. The basin frame 321 can be a magnetic conductive plate or a magnetic conductive basin frame, etc., which is not limited here. The first magnetic circuit portion 322 and the second magnetic circuit portion 323 can be connected to the first shell and the second shell of the housing 31 by bonding, welding, etc., which is not limited here.

[0111] In this embodiment, by setting the first magnetic gap 3221 in the first magnetic circuit part 322, the first magnetic gap 3221 is used to provide an avoidance and vibration space for the first vibration component 331. By setting the second magnetic circuit part 323 on the side of the first magnetic circuit part 322 facing away from the first vibration component 331, and being opposite to and spaced from the second vibration component 332, the second magnetic circuit part 323 cooperates with the first magnetic circuit part 322 to form the second magnetic gap 3231, so that the second magnetic gap 3231 is used to provide the second vibration component 332 with an avoidance and vibration space, and the first vibration component 331 and the second vibration component 332 share part of the first magnetic circuit part 322, so as to improve the magnetic field utilization rate of the magnetic circuit system 32 and effectively reduce the cost.

[0112] To facilitate the installation and fixation of the first magnetic circuit part 322 and the second magnetic circuit part 323, and to make the first magnetic circuit part 322 and the second magnetic circuit part 323 face the first vibration assembly 331 and the second vibration assembly 332 respectively. In one embodiment, the chassis 321 includes a first section, a second section, and a third section connected in sequence. The first section and the third section are respectively arranged at an angle with the second section and are located on opposite sides of the second section. The first section and the third section are parallel to the first housing, the second section is parallel to the second housing, a part of the first magnetic circuit part 322 is arranged on the first section, and the second magnetic circuit part 323 is arranged on the third section and is connected to the second section.

[0113] In this embodiment, as Figure 6 shown, the first section, the second section, and the third section of the chassis 321 are of an integrally formed structure. Optionally, the first section, the second section, and the third section form a right-angled Z-shaped structure, so that the first section and the third section of the chassis 321 are parallel to the first housing, and the second section is parallel to the second housing. In this way, a height difference is formed between the first section and the third section by using the second section, so as to facilitate the installation and fixation of the first magnetic circuit part 322 by using the first section of the chassis 321, and the installation and fixation of the second magnetic circuit part 323 by using the second section and the third section of the chassis 321, and make the second magnetic circuit part 323 located below the part of the first magnetic circuit part 322 corresponding to the third section. In this way, while improving the structural compactness, the second vibration assembly 332 shares a part of the first magnetic circuit part 322.

[0114] In this embodiment, as Figure 6 shown, a part of the central magnetic circuit part and a part of the side magnetic circuit part of the first magnetic circuit part 322 are installed and fixed on the first section of the chassis 321, and the first magnetic circuit part 322 is fixedly connected to the first housing of the outer shell 31 through the side magnetic circuit part. Optionally, the chassis 321 is adhesively connected to the central magnetic circuit part and the side magnetic circuit part, and the side magnetic circuit part is adhesively connected to the first housing of the outer shell 31.

[0115] It can be understood that the central magnetic circuit part includes a central magnet and a central washer stacked, the central magnet is arranged between the central washer and the chassis 321, the side magnetic circuit part includes a side magnet and a side washer stacked, and the side magnet is arranged between the side washer and the chassis 321. It can be understood that the side washer of the side magnetic circuit part can be adhesively connected to the outer shell 31. Optionally, the side washer and the outer shell 31 are of an integrally formed structure.

[0116] In this embodiment, the central washer and the side washer can be a magnetic conductive plate structure. The structural contours of the central magnet and the central washer are the same, and the central magnet and the central washer can be a plate structure or a ring structure, which is not limited here. The structural contours of the side magnet and the side washer are the same, and the side magnet and the side washer can be a plate structure or a ring structure, which is not limited here.

[0117] It can be understood that the side magnetic circuit part can be an annular structure. The annular side magnetic circuit part surrounds the central magnetic circuit part and is spaced from the central magnetic circuit part to form an annular first magnetic gap 3221. Optionally, the side magnetic circuit part can be circular, or polygonal such as quadrilateral, pentagonal, hexagonal, etc.

[0118] Of course, there are multiple side magnetic circuit parts, and the multiple side magnetic circuit parts are spaced and arranged around the central magnetic circuit part.

[0119] In an embodiment, there are multiple side magnetic circuit parts. The multiple side magnetic circuit parts are arranged around the central magnetic circuit part and are spaced from the central magnetic circuit part to form a first magnetic gap 3221. Adjacent two side magnetic circuit parts are spaced to form a notch communicating with the first magnetic gap 3221.

[0120] In this embodiment, both the central magnetic circuit part and the side magnetic circuit part of the first magnetic circuit part 322 are magnetized in the vertical direction, and the magnetization directions of the central magnetic circuit part and the side magnetic circuit part are opposite. It can be understood that both the central magnet of the central magnetic circuit part and the side magnet of the side magnetic circuit part are magnetized in the vertical direction, and the magnetization directions of the central magnet and the side magnet are opposite. It can be understood that such an arrangement can optimize the non-linear performance of the BL.

[0121] Optionally, the magnetization directions of the central magnetic circuit part and the side magnetic circuit part of the first magnetic circuit part 322 are the same as the vibration direction of the first vibration component 331, that is, the first vibration component 331 vibrates in the vertical direction. It can be understood that the magnetization directions of the central magnet of the central magnetic circuit part and the side magnet of the side magnetic circuit part are the same as the vibration direction of the first vibration component 331, that is, both the central magnet of the central magnetic circuit part and the side magnet of the side magnetic circuit part are magnetized in the vertical direction.

[0122] In an embodiment, the central magnetic circuit part includes a connected central magnetic circuit and a first common magnetic circuit, and the side magnetic circuit part includes a side magnetic circuit and a second common magnetic circuit. The side magnetic circuit is located outside the central magnetic circuit and is spaced to form a first sub-gap. The second common magnetic circuit is located on the side of the first common magnetic circuit facing away from the central magnetic circuit and is spaced to form a second sub-gap. The first sub-gap and the second sub-gap are connected to form a first magnetic gap 3221; the second magnetic circuit part 323 includes a first magnet and a second magnet arranged at intervals. The first magnet is opposite to and spaced from the first common magnetic circuit to form a third sub-gap, and the second magnet is opposite to and spaced from the second common magnetic circuit to form a fourth sub-gap. The third sub-gap and the fourth sub-gap are connected to form a second magnetic gap 3231.

[0123] In this embodiment, as Figure 6As shown, the central magnetic path and the first shared magnetic path of the central magnetic path portion can be an integrally formed structure, or can be a split structure connected into one body by bonding or other means, which is not limited herein. It can be understood that both the central magnetic path and the first shared magnetic path include a central magnet and a central washer. The central washers of the central magnetic path and the first shared magnetic path can be an integral structure, that is, the central magnetic path and the first shared magnetic path share a central washer, which is not limited herein.

[0124] It can be understood that the side magnetic path portion includes a side magnetic path and a second shared magnetic path, that is, part of the side magnetic path portion is the second shared magnetic path, and the other part of the side magnetic path portion is the side magnetic path. Optionally, the side magnetic path and the second shared magnetic path of the side magnetic path portion can be an integrally connected structure or can be separately arranged.

[0125] In this embodiment, there are multiple side magnetic path portions, and the multiple side magnetic path portions include a side magnetic path and a second shared magnetic path. Optionally, there are four side magnetic path portions, one is the second shared magnetic path, and three are side magnetic paths. It can be understood that the three side magnetic paths are spaced outside the central magnetic path and form a first sub-gap with the central magnetic path. The second shared magnetic path is located on the side of the first shared magnetic path facing away from the central magnetic path and forms a second sub-gap, and the first sub-gap and the second sub-gap communicate with each other to form a first magnetic gap 3221.

[0126] It should be noted that both the side magnetic path and the second shared magnetic path include side magnets and side washers arranged in layers, and the side magnets are arranged between the side washers and the chassis 321. It can be understood that the second magnetic path portion 323 can be an integral structure or a split structure. In this embodiment, the second magnetic path portion 323 includes a first magnet and a second magnet arranged at intervals. Among them, the first magnet is located below the first shared magnetic path and is opposite and spaced from the first shared magnetic path to form a third sub-gap. The second magnet is located below the second shared magnetic path and is opposite and spaced from the second shared magnetic path to form a fourth sub-gap, and the third sub-gap and the fourth sub-gap communicate with each other to form a second magnetic gap 3231.

[0127] In order to ensure that the second magnetic path portion 323 cooperates with the first shared magnetic path and the second shared magnetic path to provide a sufficient magnetic field. Optionally, the thickness of the first shared magnetic path is greater than or equal to the thickness of the central magnetic path. Optionally, the thickness of the second shared magnetic path is greater than or equal to the thickness of the side magnetic path. It can be understood that the magnet thickness of the first shared magnetic path and the second shared magnetic path is greater than or equal to the magnet thickness of the central magnetic path and the side magnetic path.

[0128] In this embodiment, as Figure 6As shown, the thickness of the first magnet is greater than or equal to the thickness of the central magnetic circuit. The thickness of the second magnet is greater than or equal to the thickness of the side magnetic circuit. Optionally, the first common magnetic circuit and the second common magnetic circuit are magnetized in the vertical direction, and the magnetization directions of the magnets in the first common magnetic circuit and the second common magnetic circuit are opposite.

[0129] Optionally, the first magnet and the first common magnetic circuit are magnetized in the vertical direction, and the magnetization directions of the magnets in the first magnet and the first common magnetic circuit are the same. The second magnet and the second common magnetic circuit are magnetized in the vertical direction, and the magnetization directions of the magnets in the second magnet and the second common magnetic circuit are the same. Such a setting can optimize the non-linear performance of BL.

[0130] It can be understood that the magnetization direction of the first magnet and the first common magnetic circuit is the same as the vibration direction of the first vibration assembly 331, that is, the first vibration assembly 331 vibrates in the vertical direction. The magnetization direction of the second magnet and the second common magnetic circuit is the same as the vibration direction of the first vibration assembly 331.

[0131] In order to ensure the air pressure balance in the vibration space of the sound generating module 3 to ensure the vibration balance of the first vibration assembly 331 and the second vibration assembly 332. In an embodiment, the basin frame 321 is provided with air vents. In order to prevent impurities or sound-absorbing particles from entering the sound generating module 3 through the air vents and affecting the performance of the sound generating module 3, the sound generating module 3 further includes a mesh cloth corresponding to the air vents.

[0132] It can be understood that the first section is provided with a first air vent, and the sound generating module 3 further includes a mesh cloth corresponding to the first air vent. The first air vent corresponds to the first magnetic gap 3221 and / or the gap formed between two side magnetic circuit parts. Of course, the second section is provided with a second air vent, and the sound generating module 3 further includes a mesh cloth corresponding to the second air vent. It can be understood that the second air vent corresponds to the second magnetic gap 3231.

[0133] In an embodiment, the first vibration assembly 331 includes a first diaphragm 3311 and a first voice coil 3312. The first diaphragm 3311 is connected to the first housing. The first diaphragm 3311 is provided with a conductive layer. One end of the first voice coil 3312 is connected to the first diaphragm 3311, and the other end of the first voice coil 3312 is suspended in the first magnetic gap 3221. The lead of the first voice coil 3312 is electrically connected to the conductive layer.

[0134] In this embodiment, as Figure 3 、 Figure 4 and Figure 6As shown in the figure, the first diaphragm 3311 includes a central portion, a surround portion disposed around the central portion, and a fixing portion disposed outside the surround portion. The fixing portion is connected to the first housing of the housing 31 so that the first diaphragm 3311 covers the first opening. It can be understood that the central portion, the surround portion, and the fixing portion of the first diaphragm 3311 are integrally formed structures. The surround portion is disposed around the central portion and is located between the central portion and the fixing portion. The surround portion may be a convex structure that protrudes upward or downward. The first diaphragm 3311 is connected and fixed to the first housing of the housing 31 of the sound generating module 3 through the fixing portion to improve the connection stability and sealing performance between the housing 31 and the first diaphragm 3311.

[0135] It can be understood that in order to increase the effective vibration area of the first diaphragm 3311, the fixing portion may be formed by extending downward or upward from the outside of the surround portion so that the fixing portion is connected and fixed to the inner side wall or the outer side wall of the housing 31. Optionally, the first diaphragm 3311 is square-shaped, and the conductive layer may be disposed at the corner portion of the first diaphragm 3311. Of course, the conductive layer may also be disposed on the long axis side or the short axis side of the first diaphragm 3311, etc., which is not limited herein.

[0136] In this embodiment, the conductive layer can conduct electricity, so that the first voice coil 3312 is electrically connected to the external circuit through the conductive layer. It can be understood that the conductive layer may be disposed on the first diaphragm 3311 by a bonding method or may be disposed on the first diaphragm 3311 by a spraying method. Optionally, the conductive layer is coated on the side of the first diaphragm 3311 facing the magnetic circuit system 32. For example, a coating structure is formed after curing by a coating method, which is not limited herein.

[0137] It can be understood that the conductive layer is made of a material that can conduct electricity. Of course, the conductive layer may also be formed by doping, mixing, or disposing a conductive material in a substrate, which is not limited herein. In this embodiment, the lead of the first voice coil 3312 may be connected to the conductive layer through a conductive adhesive. In order to improve the connection effect and achieve insulation from the outside, an insulating outer fixing adhesive is further coated to improve the connection stability and prevent the lead of the first voice coil 3312 from affecting the vibration effect and the sound generating effect of the first diaphragm 3311 during the vibration of the first diaphragm 3311.

[0138] Optionally, one end of the conductive layer is located at the central portion of the first diaphragm 3311, and the other end of the conductive layer extends across the surround portion of the first diaphragm 3311 to the fixing portion. The conductive layer has excellent compliance and does not affect the compliance of the surround of the first diaphragm 3311. The first voice coil 3312 is fixed to the conductive layer through a bonding process to achieve electrical connection.

[0139] In this embodiment, the first voice coil 3312 can be optionally a square or a racetrack-shaped ring structure. The first voice coil 3312 has two long-axis sides and two short-axis sides that are connected end to end. That is, the two short-axis sides of the first voice coil 3312 are opposite and spaced apart, and the two long-axis sides are opposite and spaced apart, so that the long-axis sides and the short-axis sides are connected end to end to form a ring structure.

[0140] In this embodiment, by providing a hollow hole in the central part of the first diaphragm 3311, the overall weight of the first diaphragm 3311 can be effectively reduced. Optionally, a hollow hole is provided at the central position of the central part. The hollow hole can be optionally a through hole, a hollow hole or an opening. Optionally, the hollow hole can be one or more, which is not limited herein.

[0141] To strengthen the structural strength of the first diaphragm 3311 and prevent the first diaphragm 3311 from experiencing an increased amount of shrinkage deformation during vibration. In one embodiment, the first vibration assembly 331 further includes a first dome, and the first dome is connected to the side of the first diaphragm 3311 facing away from the first voice coil 3312. It can be understood that by providing a first dome in the central part of the first diaphragm 3311, the first dome is connected to the central part and covers the hollow hole, which on the one hand strengthens the structural strength of the first diaphragm 3311, and on the other hand can also prevent external impurities or dust from entering the inside of the sound generating module 3 through the hollow hole, and at the same time prevent the first diaphragm 3311 from experiencing an increased amount of shrinkage deformation during vibration, thereby reducing the relatively high THD distortion of the sound generating module 3 and improving the audio effect.

[0142] In one embodiment, a first conductive insert is provided inside the housing 31. One end of the first conductive insert is exposed on the first step surface and is electrically connected to the inner pad of the flexible circuit board. The end of the conductive layer away from the first voice coil 3312 is electrically connected to the first conductive insert.

[0143] In this embodiment, by providing a first conductive insert inside the first housing of the housing 31, the flexible circuit board and the conductive layer are electrically connected through the first conductive insert, thereby realizing the electrical connection between the first voice coil 3312 and the external circuit. Optionally, the first conductive insert and the first housing of the housing 31 are integrally injection molded.

[0144] It can be understood that the first conductive insert is provided with an inner pad and an outer pad. The outer pad is used for welding connection with the external circuit, and the inner pad is welded or bonded to the conductive layer, which is not limited herein.

[0145] In one embodiment, the first vibration assembly 331 further includes a first centering washer. One end of the first centering washer is connected to the housing 31, and the other end of the first centering washer is connected to the end of the first voice coil 3312 away from the first diaphragm 3311.

[0146] In this embodiment, one end of the first centering support piece is connected to the first housing of the housing 31, and the other end of the first centering support piece passes through the gap formed between the edge magnetic circuit parts and is connected to the side of the first voice coil 3312 facing away from the first diaphragm 3311. It can be understood that by providing the first centering support piece, one end of the first centering support piece is connected to the first housing of the housing 31, and the other end of the first centering support piece is connected to the first voice coil 3312, so as to use the first centering support piece to balance and stabilize the vibration of the first voice coil 3312 driving the first diaphragm 3311, and avoid the phenomenon of the first voice coil 3312 driving the first diaphragm 3311 to swing or polarize.

[0147] Optionally, there are four first centering support pieces, and the four first centering support pieces are arranged corresponding to the four gaps of the first magnetic circuit part 322 of the magnetic circuit system 32. In this embodiment, the first centering support piece includes an outer fixing part, an inner fixing part and an elastic part connected between the outer fixing part and the inner fixing part. The outer fixing part is connected to the first housing of the housing 31, and the inner fixing part is connected to the side of the first voice coil 3312 facing away from the first diaphragm 3311.

[0148] In this embodiment, the first centering support piece can be made of PI material, which is not limited herein. Of course, in other embodiments, the first centering support piece can be made of FPCB, or a conductive circuit is provided in the first centering support piece. In this way, one end of the first centering support piece can be conductively connected to the lead of the first voice coil 3312, and the other end of the first centering support piece is fixed on the housing 31 for connection and conduction with the external circuit. In this way, the external circuit is connected and conducted with the first voice coil 3312 through the first centering support piece, effectively avoiding the risk of the lead of the first voice coil 3312 breaking during vibration.

[0149] In one embodiment, the second vibration assembly 332 includes a diaphragm assembly 3321, a second voice coil 3322 and a connecting rod 3323. The diaphragm assembly 3321 is connected to the second housing, the second voice coil 3322 is arranged in the second magnetic gap 3231, one end of the connecting rod 3323 is connected to the diaphragm assembly 3321, and the other end of the connecting rod 3323 extends into the second magnetic gap 3231 and is connected to the second voice coil 3322.

[0150] In this embodiment, as Figure 4 and Figure 6 shown, the diaphragm assembly 3321 is connected to the side of the second housing of the housing 31 facing away from the second magnetic circuit part 323 of the magnetic circuit system 32. The second voice coil 3322 can be selected as a flat voice coil, and the second voice coil 3322 is a square or racetrack-shaped ring structure. It can be understood that the second voice coil 3322 has two long axis sides and two short axis sides connected end to end, that is, the two short axis sides of the second voice coil 3322 are opposite and spaced apart, and the two long axis sides are opposite and spaced apart, so that the long axis sides and the short axis sides are connected end to end to form a ring structure.

[0151] Optionally, two long-axis sides of the first voice coil 3312 are respectively located in the third sub-gap and the fourth sub-gap, and the current directions in the two long-axis sides of the first voice coil 3312 are opposite. In this embodiment, one end of the connecting rod 3323 is connected to the diaphragm assembly 3321, and the other end of the connecting rod 3323 passes through the second opening of the second housing and extends into the second magnetic gap 3231, and is connected to the second voice coil 3322.

[0152] In this embodiment, the connecting rod 3323 is used to transfer the vibration of the second voice coil 3322 to the diaphragm assembly 3321 to drive the diaphragm assembly 3321 to vibrate and generate sound. Optionally, the connecting rod 3323 is a plate-shaped, strip-shaped or rod-shaped structure, which is not limited herein.

[0153] In one embodiment, as Figure 6 shown, the diaphragm assembly 3321 includes a mounting shell, a second diaphragm and a second dome. The mounting shell is connected to the second housing. The second diaphragm is disposed in the mounting shell. The second diaphragm and the mounting shell are integrally formed. The second dome is disposed on a side of the second diaphragm facing the connecting rod 3323.

[0154] In this embodiment, the mounting shell and the second housing are connected by welding or bonding. Of course, the mounting shell and the second housing may also be integrally formed, which is not limited herein. It can be understood that the mounting shell is a cylindrical structure with openings at both ends, that is, the mounting shell is provided with a third opening corresponding to the second opening of the second housing. The second diaphragm is disposed in the third opening and covers the second opening of the second housing.

[0155] Optionally, the mounting shell and the second diaphragm are integrally formed. It can be understood that by providing the second dome, the second dome is disposed on a side of the second diaphragm facing the connecting rod 3323, thereby further strengthening the structural strength of the second diaphragm.

[0156] In this embodiment, there are two connecting rods 3323, and the two connecting rods 3323 are arranged at intervals. It can be understood that the two connecting rods 3323 are symmetrically disposed at both ends of the second voice coil 3322, so as to ensure the balance of the vibration of the second diaphragm, so as to improve the vibration effect and the sound generation effect. It can be understood that one end of the connecting rod 3323 adjacent to the second diaphragm is bent to form a fixing portion, and the second dome is correspondingly provided with a limiting groove for the fixing portion. The fixing portion is received and limited in the limiting groove. Such a setting can improve the connection stability of the connecting rod 3323 and at the same time position the connecting rod 3323.

[0157] In one embodiment, a second conductive insert is further provided inside the housing 31. The second conductive insert is used for electrically connecting to an external circuit. The connecting rod 3323 is bent adjacent to the second dome to form a positioning portion. The second vibration assembly 332 further includes a second centering support piece. One end of the second centering support piece is connected to the positioning portion and is electrically connected to the lead of the second voice coil 3322. The other end of the second centering support piece is electrically connected to the second conductive insert.

[0158] In this embodiment, by providing the second conductive insert in the second housing of the housing 31, the external circuit is conductively connected to the second centering support piece through the second conductive insert, so that the first voice coil 3312 is conducted to the external circuit through the second centering support piece. Optionally, the second conductive insert 13 and the second housing of the housing 31 are integrally injection molded.

[0159] It can be understood that the second conductive insert is provided with an inner pad and an outer pad. The outer pad is used for welding connection with the external circuit, and the inner pad is welded or bonded to the second centering support piece, which is not limited herein.

[0160] In this embodiment, by providing the second centering support piece, the second centering support piece is used to balance and stabilize the vibration of the second voice coil 3322 driving the connecting rod 3323 and the second diaphragm, avoiding the swinging or polarization phenomenon of the second voice coil 3322 and the second diaphragm. Optionally, there are two second centering support pieces, and the two second centering support pieces are correspondingly arranged with the two connecting rods 3323.

[0161] It can be understood that by bending the connecting rod 3323 adjacent to the second dome to form a positioning portion, the positioning portion is used to connect one end of the second centering support piece connected to the lead of the second voice coil 3322, so as to avoid the risk of breakage of the lead of the second centering support piece and the second voice coil 3322 during the vibration of the second voice coil 3322.

[0162] In one embodiment, as Figure 3 、 Figure 4 and Figure 6 shown, the sound generating module 3 further includes a front cover and a first dust screen. The front cover is arranged on the side of the first vibration assembly 331 facing the first sound outlet hole 1221, and the first dust screen is connected to the side of the front cover facing away from the first vibration assembly 331.

[0163] It can be understood that the setting of the front cover is beneficial to protecting the first diaphragm 3311 of the first vibration assembly 331. The front cover is provided with a hollow hole. In order to prevent impurities and the like from affecting the vibration effect of the first diaphragm 3311 through the hollow hole, the first dust screen is connected to the side of the front cover facing away from the first vibration assembly 331, so as to effectively prevent impurities and the like from entering the sound generating module 3 through the hollow hole through the first dust screen.

[0164] In one embodiment, as Figure 4 andFigure 6 As shown, the sound generating module 3 further includes a sound guiding duct and a second dustproof net. The sound guiding duct is connected to the side of the second vibration assembly 332 facing the second sound outlet hole 1222, the second dustproof net is connected to the sound guiding duct, and the sound guiding duct is correspondingly communicated with the second sound outlet hole 1222.

[0165] It can be understood that the sound guiding duct has a hollow structure, that is, a sound outlet duct is formed inside the sound guiding duct. In this way, the sound emitted by the second diaphragm of the second vibration assembly 332 can be smoothly transmitted through the sound outlet duct of the sound guiding duct. In this embodiment, the side of the sound guiding duct facing away from the second vibration assembly 332 is inclined, and the side of the sound guiding duct facing away from the second vibration assembly 332 is in limiting abutment with the limiting inclined surface 126.

[0166] In one embodiment, the sound generating module 3 further includes a module housing. A stepped structure is formed on the side of the magnetic circuit system 32 facing away from the first housing and the second housing, and the module housing and the stepped structure enclose a rear sound cavity.

[0167] In this embodiment, as Figure 6 shown, by providing a stepped structure on the side of the magnetic circuit system 32 of the sound generating module 3 facing away from the first vibration assembly 331 and the second vibration assembly 332, and providing a module housing, the module housing is connected to the magnetic circuit system 32 of the sound generating module 3 and encloses a rear sound cavity with the stepped structure. Thus, by using the cooperation between the module housing and the stepped structure of the sound generating module 3, not only the volume of the rear sound cavity is enlarged, but also the height difference of the sound generating module 3 itself is utilized to form a rear sound cavity. In this way, the overall volume of the sound generating module 3 can be reduced, and the rear sound cavity is filled with sound-absorbing particles, thereby effectively improving the low-frequency performance and acoustic performance of the sound generating module 3.

[0168] In this embodiment, as Figure 6 shown, the stepped structure includes a first stepped surface and a second stepped surface arranged at an angle, that is, there is a height difference between the first stepped surface of the stepped structure and the outer periphery of the sound generating module 3, and there is a height difference between the second stepped surface of the stepped structure and the outer periphery of the sound generating module 3. In this way, the height difference of the sound generating module 3 itself can be utilized and cooperate with the module housing to form a rear sound cavity. Not only can the rear sound cavity be filled with sound-absorbing particles, but also the volume of the rear cavity of the sound generating module 3 is effectively increased, and the low-frequency performance and acoustic performance of the sound generating module 3 are effectively improved.

[0169] It can be understood that stepped structures are formed on the sides of the first section and the second section of the basin frame 321 facing away from the outer shell 31. A first stepped surface is formed on the side of the first section of the basin frame 321 facing away from the first magnetic circuit part 322, and a second stepped surface is formed on the side of the second section of the basin frame 321 facing away from the second magnetic circuit part 323.

[0170] The sound - generating module 3 of the present invention is provided with a first vibration component 331 and a second vibration component 332 on the sound - generating module 3, such that the vibration direction of the first vibration component 331 and the vibration direction of the second vibration component 332 are arranged at an angle. In this way, the sound - generating module 3 can form two mutually independent vibration radiation surfaces arranged at an angle, which not only realizes multifunctional applications but also effectively improves the sound - generating effect of the sound - generating module 3. At the same time, a stepped structure is provided on the side of the sound - generating module 3 facing away from the first vibration component 331 and the second vibration component 332, and a module housing is provided. The module housing is connected to the sound - generating module 3 and encloses a rear sound cavity with the stepped structure, thereby making full use of the height dimension of the sound - generating module 3 to reduce the overall volume of the sound - generating module 3. By adding the module housing, the module housing and the stepped structure of the sound - generating module 3 form a rear sound cavity, which not only expands the volume of the rear sound cavity but also can be used to fill the rear sound cavity with sound - absorbing particles to improve the low - frequency performance of the sound - generating module 3.

[0171] In one embodiment, as Figure 6 shown, the outer shell 31, the magnetic circuit system 32, and the vibration system 33 enclose a vibration space. The stepped structure is provided with air - leakage holes communicating the vibration space and the rear sound cavity. The sound - generating module 3 further includes a mesh cloth disposed in the rear sound cavity. The mesh cloth covers the air - leakage holes and divides the rear sound cavity into a filling cavity for filling sound - absorbing particles.

[0172] In this embodiment, by providing air - leakage holes in the stepped structure, the vibration space and the rear sound cavity are communicated through the air - leakage holes to balance the air pressure in the vibration space and the rear sound cavity. At the same time, by providing a mesh cloth in the rear sound cavity, the mesh cloth covers the air - leakage holes and divides the rear sound cavity into a filling cavity for filling sound - absorbing particles. In this way, the mesh cloth can be used to block the sound - absorbing particles from entering the interior of the sound - generating module 3 through the air - leakage holes, thereby affecting the acoustic performance of the sound - generating module 3.

[0173] It can be understood that the mesh cloth can be arranged to fit the stepped structure of the sound - generating module 3, so as to increase the volume of the filling cavity and achieve full filling of the sound - generating module 3. Of course, in other embodiments, the mesh cloth can also divide the rear sound cavity into a filling cavity, that is, the mesh cloth and the module housing cooperate to form a filling cavity, and the mesh cloth is spaced from the stepped structure of the sound - generating module 3, which is not limited herein.

[0174] Optionally, a plurality of air - leakage holes are provided on the first stepped surface, a plurality of air - leakage holes are provided on the second stepped surface, and the mesh cloth includes a plurality of pieces, and each mesh cloth covers one air - leakage hole, which is not limited herein.

[0175] In one embodiment, as Figure 6As shown, the module housing is provided with damping holes communicating with the rear sound cavity, and the sound - generating module 3 further includes a damping member which is disposed at the damping holes. It can be understood that by providing the damping holes and the damping member, on the one hand, the damping holes and the damping member are used to balance the air pressure between the rear sound cavity and the outside; on the other hand, sound - absorbing particles can be filled into the rear sound cavity / filling cavity through the damping holes.

[0176] Optionally, the damping member is a breathable diaphragm or a thin film or a mesh structure, which is not limited herein.

[0177] In one embodiment, the sound - generating module 3 further includes a flexible circuit board for connecting to an external circuit. One end of the flexible circuit board extends into the rear sound cavity and is electrically connected to the sound - generating module 3.

[0178] In this embodiment, by providing the flexible circuit board, the external circuit is conducted with the sound - generating module 3 through the flexible circuit board to ensure the normal operation of the sound - generating module 3. Optionally, the flexible circuit board is made of FPCB.

[0179] In one embodiment, the end of the flexible circuit board extending into the rear sound cavity is provided with an inner pad, and the sound - generating module 3 is further provided with a conductive insert. One end of the conductive insert is exposed in the rear sound cavity, that is, one end of the conductive insert is exposed on the first step surface, and the inner pad is electrically connected to the conductive insert. It can be understood that by providing the conductive insert in the sound - generating module 3, one end of the conductive insert is exposed in the rear sound cavity, thus facilitating the electrical connection between the inner pad of the flexible circuit board and the conductive insert.

[0180] In one embodiment, the processing module 4 includes an audio processing module 41, a central processing unit 42 and a transmitting module 43. The audio processing module 41 is electrically connected to the microphone 2 and the sound - generating module 3. The audio processing module 41 is used to receive the voice signal of the microphone 2 and convert it into an anti - phase voice signal. The central processing unit 42 is electrically connected to the audio processing module 41 and is used to receive the voice signal processed by the audio processing module 41. The transmitting module 43 is electrically connected to the central processing unit 42 and is used to transmit the voice signal.

[0181] In this embodiment, as Figure 7 shown, the transmitting module 43 includes a radio frequency processing module 431 and an antenna 432. The radio frequency processing module 431 is electrically connected to the central processing unit 42 and the antenna 432. The radio frequency processing module 431 is used to receive the signal of the central processing unit 42, and the antenna 432 is used to transmit the voice signal.

[0182] It can be understood that when the electronic device 100 makes a voice call, the sound pickup hole 121 provided at the bottom of the device housing 1 picks up the sound information output by the user, and the microphone 2 processes the sound information to form an electrical signal and transmits it to the audio processing module 41. The audio processing module 41 performs noise reduction processing and extracts the human voice signal, and then generates an audio signal with an opposite phase according to the extracted human voice audio signal. Under the collaborative processing of the central processing unit 42 (CPU), on the one hand, the audio processing module 41 transmits the extracted original human voice audio signal to the radio frequency processing module 431 of the transmitting module 43 and sends it out through the built-in antenna 432 of the electronic device 100, and it is transmitted to the call recipient through the communication system. On the other hand, the audio processing module 41 transmits the generated audio signal with an opposite phase to the sound generating module 3 at the bottom of the device housing 1, and the sound generating module 3 converts this audio signal into sound and sends it to the space around the call through the sound outlet hole 122. At this time, the sound emitted from the user's mouth and the sound with an opposite phase emitted by the sound generating module 3 are close in distance and opposite in phase, forming a dipole effect, and cancel each other out at a distance farther from the caller and cannot be heard by others, thus playing a role in protecting privacy and security.

[0183] It should be noted that the electronic device 100 usually has serious sound leakage, resulting in ineffective protection of personal privacy and affecting the user experience. In order to reduce the far-field leakage of sound, the electronic device 100 adopts a sound dipole design. However, due to the sound dipole effect and the difference in the front and rear sound cavity structures, the high-frequency cut-off frequency of the rear sound cavity moves forward, narrowing the overall FR bandwidth, resulting in a decrease in the consumer's auditory sensitivity and increasing the debugging difficulty of the overall sound of the machine. Therefore, it is very important to reduce the sound leakage of the product and broaden the FR bandwidth.

[0184] The electronic device 100 of the present invention is further provided with another sound module 3, that is, two sound modules 3 are arranged in the installation cavity 11 of the device housing 1. One sound module 3 is located at the bottom of the device housing 1, and the other sound module 3 is located at the top of the device housing 1. The sound module 3 located at the top of the device housing 1 is provided with a first vibration component 331 and a second vibration component 332, so that the vibration direction of the first vibration component 331 and the vibration direction of the second vibration component 332 are arranged at an angle. In this way, the sound module 3 can form two vibration radiation surfaces that are independent of each other and arranged at an angle, which not only realizes the application of multiple functions, but also effectively improves the sound effect. A first sound outlet hole and a second sound outlet hole communicating with the installation cavity 11 are arranged at the top of the device housing 1, so that the first vibration component 331 corresponds to the first sound outlet hole, and the second vibration component 332 corresponds to the second sound outlet hole. While realizing the simultaneous sound emission of the first sound outlet hole and the second sound outlet hole, the first vibration component 331 and the second vibration component 332 are also used to output voice signals with opposite phases at the same time, so that the cooperation of the first sound outlet hole and the second sound outlet hole forms a sound dipole effect and cancels each other, thereby realizing the problem of call sound leakage of the electronic device 100 and achieving the purpose of protecting privacy.

[0185] The anti-phase voice signal output by the sound module 3 located at the bottom of the device housing 1 is opposite in phase to the voice information output by the user picked up by the microphone 2, so as to form a sound dipole effect, so that the anti-phase voice signal and the voice information output by the user cancel each other out. In this way, when the user outputs voice and reaches the ear holes of people around the user, they can cancel each other out, realizing the purpose of avoiding the leakage of the voice information output by the user and achieving the safety effect of protecting the user's privacy. Of course, the sound module 3 located at the bottom of the device housing 1 can also be set as a conventional speaker module, as long as it can output an anti-phase voice signal that is opposite in phase to the voice information output by the user picked up by the microphone 2 to form a sound dipole effect, which is not limited here.

[0186] Of course, in the SPK mode, the first sound outlet hole and the second sound outlet hole can output sounds with the same phase to achieve higher-loudness audio external playback. It can be understood that by arranging a conventional speaker module at the bottom of the device housing 1, when the sound module 3 cooperates with the conventional speaker module at the bottom, stereo sound can be output, which is not limited here.

[0187] In this embodiment, the distance between the second sound outlet hole and the first sound outlet hole should not be too far. Considering the actual use of the electronic device 100, it is found that when the distance between the second sound outlet hole and the first sound outlet hole is less than 50 mm, the effect of leakage sound elimination is the best. Optionally, the distance between the first sound outlet hole and the second sound outlet hole is less than 30 mm. That is to say, for the people around the user, the first sound outlet hole and the second sound outlet hole, these two sound sources form a sound dipole effect to reduce the leakage sound; while for the user himself, the first sound outlet hole and the second sound outlet hole, these two sound sources do not form a sound dipole effect so as not to affect the user's listening effect.

[0188] The present invention also provides a control method for the above-mentioned electronic device 100. The specific structure of the electronic device 100 refers to the foregoing embodiments. Since this electronic system adopts all the technical solutions of all the foregoing embodiments, it at least has all the beneficial effects brought by the technical solutions of the foregoing embodiments, which will not be elaborated here one by one.

[0189] In this embodiment, as Figure 7 shown, the control method of the electronic device 100 includes:

[0190] The microphone 2 receives the voice information output by the user and generates a first voice signal;

[0191] The processing module 4 receives the first voice signal, processes the first voice signal, and converts it into an anti-phase voice signal;

[0192] The sound generating module 3 receives the anti-phase voice signal and generates anti-phase voice information. The anti-phase voice information is opposite to the voice information in phase to form a sound dipole effect, so that the sound generating module 3 outputs the anti-phase voice information to cancel the voice information output by the user.

[0193] In this embodiment, the microphone 2 can be structured as a MIC or a micro MIC, etc., which is a device that picks up the sound information output by the user and converts the sound information into an electrical signal. The sound generating module 3 can be structured as a speaker module or a sound generating device module, etc.

[0194] It can be understood that when the electronic device 100 is working, the voice information output by the user is picked up through the sound pickup hole 121 at the bottom of the device housing 1. The microphone 2 processes the voice information, converts it into a first voice signal, and transmits it to the processing module 4. The processing module 4 receives the first voice signal and processes the first voice signal, that is, the processing module 4 performs noise reduction processing and extracts the human voice signal, and then generates an audio signal with an opposite phase according to the extracted human voice audio signal, and converts it into an anti-phase voice signal. The processing module 4 transmits the anti-phase voice signal to the sound generating module 3. The sound generating module 3 receives the anti-phase voice signal, generates anti-phase voice information, and outputs it to the space around the call through the sound outlet hole 122 at the bottom of the device housing 1. At this time, the anti-phase voice information is opposite to the voice information in phase to form a sound dipole effect, so that the sound generating module 3 outputs the anti-phase voice information to cancel the voice information output by the user. In this way, they cancel each other out at a relatively far distance from the caller and cannot be heard by others, playing a role in protecting privacy and security.

[0195] In this embodiment, as Figure 7 shown, the processing module 4 includes an audio processing module 41, a central processing unit 42, and a transmitting module 43. The audio processing module 41 is electrically connected to the microphone 2 and the sound generating module 3. The audio processing module 41 is used to receive the voice signal of the microphone 2 and convert it into an anti-phase voice signal. The central processing unit 42 is electrically connected to the audio processing module 41 and is used to receive the voice signal processed by the audio processing module 41. The transmitting module 43 is electrically connected to the central processing unit 42 and is used to send the voice signal.

[0196] It can be understood that the transmitting module 43 includes a radio frequency processing module 431 and an antenna 432. The radio frequency processing module 431 is electrically connected to the central processing unit 42 and the antenna 432. The radio frequency processing module 431 is used to receive the signal of the central processing unit 42, and the antenna 432 is used to send the voice signal.

[0197] In an embodiment, the control method of the electronic device 100 further includes:

[0198] The microphone 2 receives the anti-phase voice information and generates a second voice signal;

[0199] The processing module 4 receives the second voice signal, compares the second voice signal with the first voice signal to judge the strength of the sound dipole effect;

[0200] Control and adjust the sound loudness of the anti-phase voice information output by the sound generating module 3.

[0201] It can be understood that the anti-phase voice information output by the sound module 3 through the sound outlet hole 122 at the bottom of the device housing 1 can be picked up or received by the microphone 2 through the sound pickup hole 121 at the bottom of the device housing 1. At this time, the microphone 2 generates a second voice signal by receiving the anti-phase voice information, and transmits the second voice signal to the processing module 4. After being processed by the processing module 4, the second voice signal is compared with the first voice signal to judge the strength of the sound dipole effect. In this way, the sound loudness (sound pressure level) of the anti-phase voice information output by the sound module 3 can be controlled and adjusted, thereby improving the privacy protection effect.

[0202] In an embodiment, the control method of the electronic device 100 further includes:

[0203] The microphone 2 receives the ambient voice signal and generates a third voice signal;

[0204] The processing module 4 receives the third voice signal to judge the ambient scene and controls the sound module 3 to start or stop;

[0205] When the sound module 3 is started, the sound loudness of the anti-phase voice information output by the sound module 3 is controlled and adjusted.

[0206] In this embodiment, the electronic device 100 can be set with different call scenarios, locations or times, etc. (such as subways, elevators, cinemas, etc.). At this time, the electronic device 100 can be provided with its own sensors. The own sensors or the microphone 2 can receive the ambient voice signal. For example, the microphone 2 receives the ambient voice signal and generates a third voice signal. The microphone 2 transmits the third voice signal to the processing module 4. At this time, after being processed by the processing module 4, the ambient scene is judged, and the sound module 3 is controlled to start or stop according to the ambient scene.

[0207] It can be understood that the ambient scene includes call scenarios, locations or times, etc. (such as subways, elevators, cinemas, etc.). In this embodiment, when the user is in a private place, such as his own home, and there are no other surrounding people, the processing module 4 controls the sound module 3 to turn off. When the user is in a public place, such as in places like subways, elevators, cinemas, etc., the processing module 4 controls the sound module 3 to turn on, and by controlling and adjusting the sound loudness (sound pressure level) of the anti-phase voice information output by the sound module 3, the privacy protection effect is improved.

[0208] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An electronic device, characterized in that, The electronic device includes: A device housing, which is provided with an installation cavity, a sound pickup hole and a sound outlet hole communicating with the installation cavity; A microphone, which is arranged in the installation cavity and corresponds to the sound pickup hole, and is used for picking up the sound information output by the user; A sound generating module, which is arranged in the installation cavity, is spaced from the microphone, and corresponds to the sound outlet hole. The sound generating module is provided with a first vibration component and a second vibration component, and the vibration direction of the first vibration component is arranged at an angle to the vibration direction of the second vibration component; and A processing module, which is arranged in the installation cavity and is electrically connected to the microphone and the sound generating module. The processing module is used for receiving the voice signal of the microphone and converting it into an anti-phase voice signal; The sound generating module includes a housing, a magnetic circuit system and a vibration system. The vibration system is provided with the first vibration component and the second vibration component. The magnetic circuit system is connected to the housing. The magnetic circuit system includes a chassis, a first magnetic circuit part and a second magnetic circuit part. The first magnetic circuit part is opposite to and spaced from the first vibration component. The first magnetic circuit part includes a central magnetic circuit part and a side magnetic circuit part arranged on the side of the chassis facing the housing. The side magnetic circuit part is arranged outside the central magnetic circuit part and is spaced from the central magnetic circuit part to form a first magnetic gap; the second magnetic circuit part is arranged on the chassis, is opposite to and spaced from the second vibration component, and the second magnetic circuit part is opposite to and spaced from part of the central magnetic circuit part and part of the side magnetic circuit part to cooperate to form a second magnetic gap; The central magnetic circuit part includes a connected central magnetic circuit and a first common magnetic circuit. The side magnetic circuit part includes a side magnetic circuit and a second common magnetic circuit. The side magnetic circuit is located outside the central magnetic circuit and is spaced to form a first sub-gap. The second common magnetic circuit is located on the side of the first common magnetic circuit facing away from the central magnetic circuit and is spaced to form a second sub-gap. The first sub-gap and the second sub-gap are communicated to form the first magnetic gap; the second magnetic circuit part includes a first magnet and a second magnet arranged at intervals. The first magnet is opposite to and spaced from the first common magnetic circuit to form a third sub-gap. The second magnet is opposite to and spaced from the second common magnetic circuit to form a fourth sub-gap. The third sub-gap and the fourth sub-gap are communicated to form the second magnetic gap.

2. The electronic device according to claim 1, wherein The device housing includes: A front shell, which is provided with a fixing groove, the sound pickup hole and the sound outlet hole. The sound pickup hole and the sound outlet hole communicate with the fixing groove, and the sound generating module and the microphone are spaced and arranged in the fixing groove; and A rear cover, which covers the notch of the fixing groove and encloses the installation cavity with the fixing groove.

3. The electronic device according to claim 2, characterized in that, The side wall of the fixing groove includes a connected first side wall and a second side wall. The first side wall and the second side wall are arranged at an angle. The sound pickup hole is opened on the first side wall, and the sound outlet hole is opened on the first side wall and / or the second side wall.

4. The electronic device according to claim 3, wherein The sound outlet holes include a first sound outlet hole and a second sound outlet hole. The first sound outlet hole is provided on the first side wall and is spaced from the sound pickup hole. The second sound outlet hole is provided on the second side wall. The first vibration assembly corresponds to the first sound outlet hole, and the second vibration assembly corresponds to the second sound outlet hole.

5. The electronic device according to claim 4, wherein A support platform protrudes from the bottom wall of the fixed groove. The support platform encloses to form a limit groove. The front shell further has a sound outlet channel communicating the first sound outlet hole and the limit groove. Part of the sound generating module is limited in the limit groove, and the first vibration assembly faces the inside of the limit groove. And / or, a limit inclined surface is further provided on the side wall of the fixed groove. The second sound outlet hole penetrates through the limit inclined surface. The sound generating module is in limit abutment with the limit inclined surface, and the second vibration assembly faces the limit inclined surface.

6. The electronic device according to claim 1, wherein the housing includes a first housing and a second housing arranged at an angle; the magnetic circuit system is connected to the first housing and the second housing; and the vibration system includes the first vibration assembly and the second vibration assembly. The first vibration assembly is connected to the first housing and is opposite to the magnetic circuit system. The second vibration assembly is connected to the second housing and is opposite to the magnetic circuit system. The vibration direction of the first vibration assembly is perpendicular to the vibration direction of the second vibration assembly.

7. The electronic device according to claim 6, wherein the first vibration assembly includes a first diaphragm and a first voice coil. The first diaphragm is connected to the first housing. The first diaphragm is provided with a conductive layer. One end of the first voice coil is connected to the first diaphragm, and the other end of the first voice coil is suspended in the first magnetic gap. The lead of the first voice coil is electrically connected to the conductive layer. And / or, the second vibration assembly includes a diaphragm assembly, a second voice coil and a connecting rod. The diaphragm assembly is connected to the second housing. The second voice coil is arranged in the second magnetic gap. One end of the connecting rod is connected to the diaphragm assembly, and the other end of the connecting rod extends into the second magnetic gap and is connected to the second voice coil.

8. The electronic device according to any one of claims 1 to 7, characterized in that, The processing module includes: an audio processing module, which is electrically connected to the microphone and the sound generating module. The audio processing module is used to receive the voice signal of the microphone and convert it into an anti-phase voice signal; a central processing unit, which is electrically connected to the audio processing module and is used to receive the voice signal processed by the audio processing module; and a transmitting module, which is electrically connected to the central processing unit and is used to transmit the voice signal.

9. The electronic device according to claim 8, wherein The transmitting module includes a radio frequency processing module and an antenna. The radio frequency processing module is electrically connected to the central processing unit and the antenna. The radio frequency processing module is used to receive the signal of the central processing unit, and the antenna is used to transmit the voice signal.

10. A control method for an electronic device according to any one of claims 1 to 9, characterized in that, The control method of the electronic device includes: The microphone receives the voice information output by the user and generates a first voice signal. The processing module receives the first voice signal, processes the first voice signal, and converts it into an anti-phase voice signal; The sound generating module receives the anti-phase voice signal and generates anti-phase voice information, which is opposite to the voice information in phase to form a sound dipole effect, so that the sound generating module outputs the anti-phase voice information to cancel the voice information output by the user.

11. The control method of the electronic device according to claim 10, characterized in that, The control method of the electronic device further includes: The microphone receives the anti-phase voice information and generates a second voice signal; The processing module receives the second voice signal, compares the second voice signal with the first voice signal to judge the strength of the sound dipole effect; Control and adjust the sound loudness of the anti-phase voice information output by the sound generating module.

12. The control method of the electronic device according to claim 10, characterized in that, The control method of the electronic device further includes: The microphone receives an ambient voice signal and generates a third voice signal; The processing module receives the third voice signal to judge the ambient scene and controls the sound generating module to start or stop; When the sound generating module starts, control and adjust the sound loudness of the anti-phase voice information output by the sound generating module.

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