Electronic device

Abstract

The utility model provides a kind of electronic equipment, including shell and sound production module, sound production module includes the first, second and third sound production unit fixed in basin frame, basin frame is along first direction and is provided with first through-hole area and second through-hole area, first through-hole area includes two mounting holes and is arranged side by side along second direction, second through-hole area includes one mounting hole, first, second direction is perpendicular to each other, first, second sound production unit is installed in first through-hole area, third sound production unit is installed in second through-hole area;Shell front panel is provided with first loudspeaker hole, shell middle frame is provided with second loudspeaker hole, first sound production unit sound is propagated outward by first loudspeaker hole, second, third sound production unit sound is propagated outward by second loudspeaker hole;Sound production module first working mode, first sound production unit emits positive phase sound wave, second, third sound production unit emits all opposite phase sound wave.The utility model can achieve the sound cancellation of greater range, to optimize privacy call effect.

Description

[Technical Field]

[0001] This utility model relates to an electronic device. [Background Technology]

[0002] In electronic device communication scenarios, the need for privacy protection is becoming increasingly prominent. Existing electronic devices are usually equipped with speakers to achieve voice output, but when conventional speakers emit sound, the sound waves are easily radiated into the surrounding space, causing the content of the call to be heard by people nearby, thus failing to meet the need for private calls.

[0003] Related technologies propose a two-unit loudspeaker scheme: one unit emits sound directly towards the listener's ear to ensure normal communication, while the other unit emits canceling sound waves away from the listener's ear, achieving side noise cancellation through sound wave interference. Two-unit loudspeakers typically employ a dual voice coil structure (such as a large voice coil nested within a smaller voice coil) or a dual-diaphragm structure (two voice coils arranged back-to-back).

[0004] However, while the dual-unit speaker structure can improve vibration performance and acoustic output, the sound wave cancellation effect is only significant in fixed locations, and sound leakage still exists in other directions. This is mainly because the sound direction of the two units cannot effectively constrain the sound wave radiation range, resulting in poor side noise cancellation and failing to meet users' actual needs for private calls.

[0005] Therefore, it is necessary to provide a new electronic device to solve the above problems. [Utility Model Content]

[0006] The technical problem to be solved by this invention is to provide an electronic device with better privacy call performance.

[0007] To solve the above-mentioned technical problems, the present invention provides an electronic device, including a housing having a first receiving space and a sound-generating module fixedly installed in the first receiving space. The housing includes a front panel with a display screen, a rear cover disposed opposite to the front panel, and a middle frame connecting the front panel and the rear cover and forming the first receiving space together.

[0008] The sound-generating module includes a frame and a first sound-generating unit, a second sound-generating unit, and a third sound-generating unit fixedly installed on the frame. The frame includes a first through-hole area and a second through-hole area arranged side by side along a first direction. The first through-hole area includes a first mounting hole and a second mounting hole arranged side by side along a second direction. The second through-hole area includes a third mounting hole. The first direction and the second direction are perpendicular to each other. The first sound-generating unit is fixedly installed in the first mounting hole, the second sound-generating unit is fixedly installed in the second mounting hole, and the third sound-generating unit is fixedly installed in the third mounting hole.

[0009] The front panel has a first speaker hole, and the middle frame has a second speaker hole adjacent to the first speaker hole. The sound waves emitted by the first sound unit propagate outward through the first speaker hole, and the sound waves emitted by the second sound unit and the third sound unit propagate outward through the second speaker hole.

[0010] The sound-generating module includes a first working mode. In the first working mode, the first sound-generating unit emits a positive-phase sound wave, and the second and third sound-generating units emit anti-phase sound waves that are opposite to the positive-phase sound waves.

[0011] Preferably, a first sound outlet channel, a second sound outlet channel, and a third sound outlet channel are respectively provided on the inner side of the first receiving space. The sound-emitting module cooperates with the housing and isolates the first sound outlet channel, the second sound outlet channel, and the third sound outlet channel from each other, wherein:

[0012] The first sound outlet channel connects the diaphragm of the first sound-emitting unit and the first sound-emitting hole; the second sound outlet channel connects the diaphragm of the second sound-emitting unit and a portion of the second sound-emitting hole; and the third sound outlet channel connects the diaphragm of the third sound-emitting unit and another portion of the second sound-emitting hole.

[0013] Preferably, the electronic device further includes a housing having a second receiving space, the sound-generating module being fixedly installed in the second receiving space, and cooperating with the housing to divide the second receiving space into a front cavity and a rear cavity of the sound-generating module;

[0014] The frame and the outer shell cooperate with each other, dividing the front cavity into a first sub-front cavity, a second sub-front cavity, and a third sub-front cavity, which are isolated from each other and correspond to the first sound-producing unit, the second sound-producing unit, and the third sound-producing unit, respectively; the outer shell is provided with a first sound outlet, a second sound outlet, and a third sound outlet corresponding to the first sub-front cavity, the second sub-front cavity, and the third sub-front cavity, respectively, wherein:

[0015] The first sound outlet is directly opposite the first speaker hole, the second sound outlet is directly opposite a portion of the second speaker hole, and the third sound outlet is directly opposite another portion of the second speaker hole.

[0016] Preferably, in the first operating mode, there is a phase difference between the anti-phase sound wave emitted by the second sound unit and the anti-phase sound wave emitted by the third sound unit.

[0017] Preferably, the sound-generating module further includes a second working mode, in which the first sound-generating unit, the second sound-generating unit, and the third sound-generating unit all emit positive-phase sound waves.

[0018] Preferably, the third sound-generating unit includes a first vibration system and a first magnetic circuit system. The first vibration system includes a first diaphragm and a first voice coil fixed to the first diaphragm. The first magnetic circuit system includes a first lower clamping plate, a first main magnet fixed to the side of the first lower clamping plate near the first diaphragm, a first auxiliary magnet distributed along the first direction on both sides of the first main magnet and forming a first magnetic gap with the first main magnet, and a first pole core fixed to the side of the first main magnet away from the first lower clamping plate. The first voice coil is inserted into the first magnetic gap.

[0019] Preferably, the first sound-generating unit and the second sound-generating unit include a shared second vibration system and a second magnetic circuit system. The second vibration system includes a second diaphragm and a third diaphragm arranged side by side along the second direction, and a second voice coil and a third voice coil respectively fixed to the second diaphragm. The second magnetic circuit system includes a second lower clamping plate, a second main magnet and a third main magnet distributed along the second direction, a second auxiliary magnet distributed along the second direction in the middle and on both sides of the second main magnet and the third main magnet to form a second magnetic gap and a third magnetic gap, and a second pole core and a third pole core respectively fixed to the side of the second main magnet and the third main magnet away from the second lower clamping plate. The second voice coil is inserted into the second magnetic gap, and the third voice coil is inserted into the third magnetic gap.

[0020] Preferably, the diaphragms of the first sound-generating unit, the second sound-generating unit, and the third sound-generating unit are an integral structure.

[0021] Preferably, the second magnetic circuit system further includes an upper clamping plate, which is fixedly disposed on the side of the second auxiliary magnet away from the second lower clamping plate.

[0022] Preferably, the sound-generating module further includes a first FPC component and a second FPC component, wherein the first FPC component is electrically connected to the third sound-generating unit, and the second FPC component is electrically connected to the first sound-generating unit and the second sound-generating unit.

[0023] Compared with related technologies, the present invention provides an electronic device comprising a housing having a first receiving space and a sound-generating module fixedly installed within the first receiving space. The housing includes a front panel with a display screen, a rear cover opposite to the front panel, and a middle frame connecting the front panel and the rear cover to form the first receiving space. The sound-generating module includes a frame and a first sound-generating unit, a second sound-generating unit, and a third sound-generating unit fixedly installed on the frame. The frame includes a first through-hole area and a second through-hole area arranged side-by-side along a first direction. The first through-hole area includes a first mounting hole and a second mounting hole arranged side-by-side along a second direction. The second through-hole area includes a third mounting hole. The first direction and the second direction are parallel. The three sound units are perpendicular to each other. The first sound unit is fixedly installed in the first mounting hole, the second sound unit is fixedly installed in the second mounting hole, and the third sound unit is fixedly installed in the third mounting hole. The front panel has a first speaker hole, and the middle frame has a second speaker hole adjacent to the first speaker hole. The sound waves emitted by the first sound unit propagate outward through the first speaker hole, and the sound waves emitted by the second and third sound units propagate outward through the second speaker hole. The sound module includes a first working mode. In the first working mode, the first sound unit emits a positive-phase sound wave, and the second and third sound units emit anti-phase sound waves opposite to the positive-phase sound wave. In the three-unit sound module, one unit serves as the main call function, and the other two units emit canceling sound waves. Compared with the traditional single-unit structure, it has better sound directionality and can achieve a wider range of sound cancellation, thereby optimizing the privacy call effect. [Attached Image Description]

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0025] Figure 1 This is a three-dimensional structural diagram of the electronic device of this utility model;

[0026] Figure 2 This is an exploded view of the overall structure of the electronic device of this utility model;

[0027] Figure 3 This is a three-dimensional structural diagram of the sound-generating module of this utility model;

[0028] Figure 4 This is a schematic diagram of the sound-generating channel structure in the electronic device of this utility model;

[0029] Figure 5 This is a schematic diagram of the overall structure of the sound-generating device of this utility model;

[0030] Figure 6 This is an exploded view of the overall structure of the sound-generating device of this utility model;

[0031] Figure 7 This is an exploded view of the overall structure of the sound-generating module of this utility model;

[0032] Figure 8 For along Figure 3 Cross-sectional view of line AA in the middle;

[0033] Figure 9 For along Figure 3 Cross-sectional view of the BB line.

Detailed Implementation Methods

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0035] Please see Figure 1-5 As shown, the present invention provides an electronic device 100, including a housing 1 having a first receiving space and a sound-generating module 2 fixedly installed in the first receiving space. The housing 1 includes a front panel 11 having a display screen 111, a rear cover 12 disposed opposite to the front panel 11, and a middle frame 13 connecting the front panel 11 and the rear cover 12 and forming the first receiving space together.

[0036] The sound-generating module 2 includes a frame 21 and a first sound-generating unit 22, a second sound-generating unit 23, and a third sound-generating unit 24 fixedly installed on the frame 21. The frame 21 includes a first through-hole area and a second through-hole area arranged side by side along a first direction. The first through-hole area includes a first mounting hole 211 and a second mounting hole 212 arranged side by side along a second direction. The second through-hole area includes a third mounting hole 213. The first direction and the second direction are perpendicular to each other. The first sound-generating unit 22 is fixedly installed in the first mounting hole 211, the second sound-generating unit 23 is fixedly installed in the second mounting hole 212, and the third sound-generating unit 24 is fixedly installed in the third mounting hole 213.

[0037] The front panel 11 has a first speaker hole 112, and the middle frame 13 has a second speaker hole 131 adjacent to the first speaker hole 112. The sound waves emitted by the first sound unit 22 propagate outward through the first speaker hole 112, and the sound waves emitted by the second sound unit 23 and the third sound unit 24 propagate outward through the second speaker hole 131.

[0038] The sound-generating module 2 includes a first working mode. In the first working mode, the first sound-generating unit 22 emits a positive-phase sound wave, and the second sound-generating unit 23 and the third sound-generating unit 24 both emit anti-phase sound waves that are opposite to the positive-phase sound waves.

[0039] The sound emission directions of the first sound unit 22 and the second sound unit 23 are as far apart as possible. This effectively prevents mutual interference between the canceling sound waves emitted by the second sound unit 23 and the first sound unit 22, ensuring normal user operation and call quality. Simultaneously, it expands the three-dimensional spatial dimension of the sound field distribution, thereby improving the effectiveness of privacy calls. The three sound units work together as follows: Figure 3 The combination arrangement shown makes it easier to achieve this sound output method. When adjusting the whole machine, compared with the traditional parallel arrangement of sound modules, it can achieve a better acoustic channel layout, avoid the sound energy loss caused by too many bends in the acoustic channel, enhance the uniformity of the sound field distribution, and avoid the problems of high design and assembly difficulty of the whole machine.

[0040] Specifically, such as Figure 1 , 2 As shown, to enable the call function, the front panel 11 of the electronic device 100 has a first speaker hole 112. In use, the first speaker hole 112 is opened directly towards the ear, and the first sound unit 22 emits the call voice (positive phase sound wave). In order to achieve private calls, this utility model designs a second sound unit 23 and a third sound unit 24 through a second speaker hole 131. The second sound unit 23 and the third sound unit 24 are used to emit sound waves that cancel out the call voice (anti-phase sound waves). Since the second speaker hole 121 and the first speaker hole 112 are opened in different directions, the anti-phase sound waves emitted by the second sound unit 23 and the third sound unit 24 can cancel out the call voice that leaks out from the side of the opening direction of the first speaker hole 112, thereby achieving a larger sound cancellation effect than the traditional two-unit private call.

[0041] Preferred, such as Figure 4As shown, a first sound outlet channel 132, a second sound outlet channel 133, and a third sound outlet channel 134 are respectively provided on the inner side of the first receiving space. The sound-emitting module 2 cooperates with the housing 1 and isolates the first sound outlet channel 132, the second sound outlet channel 133, and the third sound outlet channel 134 from each other, wherein:

[0042] The first sound outlet channel 132 connects the diaphragm of the first sound-generating unit 22 and the first sound-emitting hole 112, the second sound outlet channel 133 connects the diaphragm of the second sound-generating unit 23 and a portion of the second sound-emitting hole 131, and the third sound outlet channel 134 connects the diaphragm of the third sound-generating unit 24 and another portion of the second sound-emitting hole 131.

[0043] The above embodiment describes a method of installing the sound-generating module 2 in the housing 1 of the electronic device 100. In this embodiment, the housing 1 has a pre-designed sound outlet channel structure inside. This structure can be achieved by integrally molding or additionally installing similar components such as inner walls, protrusions, and baffles in the housing 1. Figure 4 The sound outlet channel structure shown is a one-piece molded structure, in which Figure 4 Figures a and b show the structural diagrams of the sound outlet channel from two different directions. With this design, the sound-generating module 2 can be directly installed in the electronic device 100, and each sound-generating unit can be fitted with its corresponding sound outlet channel. As described in the above embodiment, the second speaker hole 131 needs to simultaneously emit sound waves from the second sound-generating unit 23 and the third sound-generating unit 24. Since the second and third sound outlet channels are isolated from each other, the second speaker hole 131 can be elongated, and the second and third sound outlet channels 133 and 134 can be constructed inside the housing 1 of the electronic device 100, with the outlets of the two sound outlet channels located at opposite ends of the second speaker hole 131. Because existing electronic devices 100 have filters on their speaker holes, the outlet shape of the sound outlet channel will be covered by the filter, providing a degree of concealment and aesthetic appeal.

[0044] In addition, this embodiment of the invention also provides another installation method for the sound-generating module 2: such as Figure 5 , 6 As shown, the electronic device 100 also includes a housing 25 having a second receiving space. The sound-emitting module 2 is fixedly installed in the second receiving space and cooperates with the housing 25 to divide the second receiving space into a front cavity and a rear cavity of the sound-emitting module 2.

[0045] The basin frame 21 cooperates with the outer shell 25, dividing the front cavity into a first sub-front cavity 2511, a second sub-front cavity 2512, and a third sub-front cavity 2513, which are isolated from each other and correspond to the first sound-emitting unit 22, the second sound-emitting unit 23, and the third sound-emitting unit 24, respectively. The outer shell 25 has a first sound outlet 2514, a second sound outlet 2515, and a third sound outlet 2516, respectively corresponding to the first sub-front cavity 2511, the second sub-front cavity 2512, and the third sub-front cavity 2513, wherein:

[0046] The first sound outlet 2514 is directly opposite to the first speaker hole 112, the second sound outlet 2515 is directly opposite to a portion of the second speaker hole 131, and the third sound outlet 2516 is directly opposite to another portion of the second speaker hole 131.

[0047] In this embodiment, the sound-generating module 2 is assembled into a separate sound-generating device 20 by means of a housing 25. The housing 25 consists of a front cover 251 with a second receiving space and a rear cover 252 covering the front cover 251, to facilitate assembly. Since the shape of the front cavity inside the front cover 251 is pre-designed, the sound-generating device 20 is installed in the electronic device 100, and each sound outlet fits with the corresponding speaker hole, thus enabling sound wave transmission in a specific direction for each sound-generating unit. With this design, there is no need to set up a sound outlet channel structure inside the housing 1 of the electronic device 100, thereby simplifying the internal structure of the electronic device 100.

[0048] like Figure 3 In the structure shown in this embodiment of the invention, to ensure that each sound outlet fits snugly with its corresponding speaker hole, during the installation of each sound-emitting unit, the first direction is parallel to the short side direction of the electronic device 100, and the second direction is parallel to the long side direction of the electronic device 100. It can be understood that, based on the shape of the electronic device 100, the selection of the first and second directions is determined by the opening direction of the main speaker hole for the call function, and the plane containing the first and second directions is perpendicular to the opening direction of the main speaker hole.

[0049] Preferably, in the first operating mode, there is a phase difference between the anti-phase sound wave emitted by the second sound unit 23 and the anti-phase sound wave emitted by the third sound unit 24. The principle of privacy calls lies in the cancellation effect produced by sound waves of different phases at a certain spatial position. In this embodiment, two different sound units generate anti-phase sound waves in different directions to cancel out the positive-phase voice communication. Therefore, by designing the second sound unit 23 and the third sound unit 24 to each emit anti-phase sound waves with a phase difference, the cancellation position of the sound waves in space can be adjusted, thereby achieving directional control of privacy calls according to the scenario.

[0050] Specifically, the above embodiments illustrate an implementation method in which the second speaker hole 131 can be set to an elongated shape, and a second sound outlet channel and a third sound outlet channel can be constructed inside the housing 1 of the electronic device 100, such that the outlets of the two sound outlet channels are located at both ends of the second speaker hole 131. In order to achieve the adjustment of the directionality of the canceling sound waves, the opening direction and angle of the outlets of the sound outlet channels at both ends of the second speaker hole 131 can be designed so that the canceling sound waves emitted through the second speaker hole 131 have a larger playback range, thereby optimizing the privacy call effect.

[0051] Preferably, the sound module 2 further includes a second working mode. In the second working mode, the first sound unit 22, the second sound unit 23, and the third sound unit 24 all emit positive-phase sound waves. The second working mode is determined according to the usage scenario of the electronic device 100. Generally, in addition to the privacy call function, the electronic device 100 will also play voice aloud as needed. Compared with the design of the traditional sound module 2, the sound module 2 in this embodiment of the present invention has more sound units. Therefore, in the external playback scenario, the external playback volume can be increased and the voice playback effect can be optimized by controlling all the sound units to emit positive-phase call voice uniformly.

[0052] For details, please refer to Figure 7 , Figure 8 and Figure 9 The third sound-generating unit 24 includes a first vibration system 241 and a first magnetic circuit system 242. The first vibration system 241 includes a first diaphragm 2411 and a first voice coil 2412 fixed to the first diaphragm 2411. The first magnetic circuit system 242 includes a first lower clamping plate 2421, a first main magnet 2422 fixed to the side of the first lower clamping plate 2421 near the first diaphragm 2411, a first auxiliary magnet 2423 distributed along the first direction on both sides of the first main magnet 2422 and forming a first magnetic gap with the first main magnet 2422, and a first pole core 2424 fixed to the side of the first main magnet 2422 away from the first lower clamping plate 2421. The first voice coil 2412 is inserted into the first magnetic gap.

[0053] The first sound-generating unit 22 and the second sound-generating unit 23 include a shared second vibration system 221 and a second magnetic circuit system 222. The second vibration system 221 includes a second diaphragm 2211 and a third diaphragm 2212 arranged side by side along the second direction, and a second voice coil 2213 fixed to the second diaphragm 2211 and a third voice coil 2214 fixed to the third diaphragm 2212. The second magnetic circuit system 222 includes a second lower clamping plate 2221 and second main magnets 2222 distributed along the second direction. The system includes a third main magnet 2223, a second auxiliary magnet 2224 distributed along the second direction in the middle and on both sides of the second main magnet 2222 and the third main magnet 2223 to form a second magnetic gap and a third magnetic gap, and a second pole core 2225 and a third pole core 2226 respectively fixed to the side of the second main magnet 2222 and the third main magnet 2223 away from the second lower clamping plate 2221. The second voice coil 2213 is inserted into the second magnetic gap, and the third voice coil 2214 is inserted into the third magnetic gap.

[0054] In this embodiment of the invention, the first sound-emitting unit 22 is used to emit positive-phase voice for communication, which is the main function of the electronic device 100, such as... Figure 3 As shown, the first sound unit 22 is the same size as the second sound unit 23, but smaller than the third sound unit 24. Since the playback of voice calls has a clear directionality (the playback direction is directly towards the ear), the first sound unit 22 can reduce its size while ensuring functionality, which is beneficial for achieving higher space utilization.

[0055] The second sound unit 23 and the third sound unit 24 are used in the first working mode to emit anti-phase sound waves as an auxiliary function for voice communication of the electronic device 100. The second sound unit 23 and the first sound unit 22 are a dual voice coil structure with a shared magnetic circuit system. The second sound unit 23 is smaller than the third sound unit 24. The two sound units, one large and one small, emit canceling sound waves, which is beneficial to achieve control of the directionality of the canceling sound waves.

[0056] Preferably, the diaphragms of the first sound-generating unit 22, the second sound-generating unit 23, and the third sound-generating unit 24 are of a single integrated structure. For example... Figure 7 As shown, the diaphragm with an integrated structure can improve the compactness of the sound-generating module 2 and simplify the manufacturing process.

[0057] Preferably, the second magnetic circuit system 222 further includes an upper clamping plate 2227, which is fixedly disposed on the side of the second auxiliary magnet 2224 away from the second lower clamping plate 2221. In this embodiment of the present invention, since the main magnet in the second magnetic circuit system 222 is relatively small, the upper clamping plate 2227 can increase the magnetic field strength of the second magnetic circuit system 222, thereby improving the acoustic performance of the first sound-generating unit 22 and the second sound-generating unit 23.

[0058] Preferred, such as Figure 7 As shown, the sound-generating module 2 further includes a first FPC component 26 and a second FPC component 27. The first FPC component 26 is electrically connected to the third sound-generating unit 24, and the second FPC component 27 is electrically connected to the first sound-generating unit 22 and the second sound-generating unit 23. In this embodiment of the invention, two magnetic circuit systems are designed according to the structure of the sound-generating unit. Therefore, by designing different FPC components to electrically connect with the magnetic circuit systems, it is beneficial to achieve control isolation and ensure the functional stability of the sound-generating device 2.

[0059] Compared with related technologies, the present invention provides an electronic device comprising a housing having a first receiving space and a sound-generating module fixedly installed within the first receiving space. The housing includes a front panel with a display screen, a rear cover opposite to the front panel, and a middle frame connecting the front panel and the rear cover to form the first receiving space. The sound-generating module includes a frame and a first sound-generating unit, a second sound-generating unit, and a third sound-generating unit fixedly installed on the frame. The frame includes a first through-hole area and a second through-hole area arranged side-by-side along a first direction. The first through-hole area includes a first mounting hole and a second mounting hole arranged side-by-side along a second direction. The second through-hole area includes a third mounting hole. The first direction and the second direction are parallel. The three sound units are perpendicular to each other. The first sound unit is fixedly installed in the first mounting hole, the second sound unit is fixedly installed in the second mounting hole, and the third sound unit is fixedly installed in the third mounting hole. The front panel has a first speaker hole, and the middle frame has a second speaker hole adjacent to the first speaker hole. The sound waves emitted by the first sound unit propagate outward through the first speaker hole, and the sound waves emitted by the second and third sound units propagate outward through the second speaker hole. The sound module includes a first working mode. In the first working mode, the first sound unit emits a positive-phase sound wave, and the second and third sound units emit anti-phase sound waves opposite to the positive-phase sound wave. In the three-unit sound module, one unit serves as the main call function, and the other two units emit canceling sound waves. Compared with the traditional single-unit structure, it has better sound directionality and can achieve a wider range of sound cancellation, thereby optimizing the privacy call effect.

[0060] The above description is merely an embodiment of this utility model. It should be noted that those skilled in the art can make improvements without departing from the inventive concept of this utility model, but these improvements all fall within the protection scope of this utility model.

Claims

1. An electronic device, comprising a housing having a first receiving space, and a sound-generating module fixedly installed within the first receiving space, the housing comprising a front panel having a display screen, a rear cover disposed opposite to the front panel, and a mid-frame connecting the front panel and the rear cover and together forming the first receiving space; characterized in that, The sound-generating module includes a frame and a first sound-generating unit, a second sound-generating unit, and a third sound-generating unit fixedly installed on the frame. The frame includes a first through-hole area and a second through-hole area arranged side by side along a first direction. The first through-hole area includes a first mounting hole and a second mounting hole arranged side by side along a second direction. The second through-hole area includes a third mounting hole. The first direction and the second direction are perpendicular to each other. The first sound-generating unit is fixedly installed in the first mounting hole, the second sound-generating unit is fixedly installed in the second mounting hole, and the third sound-generating unit is fixedly installed in the third mounting hole. The front panel has a first speaker hole, and the middle frame has a second speaker hole adjacent to the first speaker hole. The sound waves emitted by the first sound unit propagate outward through the first speaker hole, and the sound waves emitted by the second sound unit and the third sound unit propagate outward through the second speaker hole. The sound-generating module includes a first working mode. In the first working mode, the first sound-generating unit emits a positive-phase sound wave, and the second and third sound-generating units emit anti-phase sound waves that are opposite to the positive-phase sound waves.

2. The electronic device according to claim 1, characterized in that, The inner side of the first receiving space is provided with a first sound outlet channel, a second sound outlet channel, and a third sound outlet channel. The sound-emitting module cooperates with the housing and isolates the first sound outlet channel, the second sound outlet channel, and the third sound outlet channel from each other. The first sound outlet channel connects the diaphragm of the first sound-emitting unit and the first sound-emitting hole; the second sound outlet channel connects the diaphragm of the second sound-emitting unit and a portion of the second sound-emitting hole; and the third sound outlet channel connects the diaphragm of the third sound-emitting unit and another portion of the second sound-emitting hole.

3. The electronic device according to claim 1, characterized in that, The electronic device also includes a housing with a second receiving space, the sound-generating module is fixedly installed in the second receiving space, and cooperates with the housing to divide the second receiving space into a front cavity and a rear cavity of the sound-generating module; The frame and the outer shell cooperate with each other, dividing the front cavity into a first sub-front cavity, a second sub-front cavity, and a third sub-front cavity, which are isolated from each other and correspond to the first sound-producing unit, the second sound-producing unit, and the third sound-producing unit, respectively; the outer shell is provided with a first sound outlet, a second sound outlet, and a third sound outlet corresponding to the first sub-front cavity, the second sub-front cavity, and the third sub-front cavity, respectively, wherein: The first sound outlet is directly opposite the first speaker hole, the second sound outlet is directly opposite a portion of the second speaker hole, and the third sound outlet is directly opposite another portion of the second speaker hole.

4. The electronic device according to claim 1, characterized in that, In the first operating mode, there is a phase difference between the anti-phase sound wave emitted by the second sound unit and the anti-phase sound wave emitted by the third sound unit.

5. The electronic device according to claim 1, characterized in that, The sound-generating module also includes a second working mode, in which the first sound-generating unit, the second sound-generating unit, and the third sound-generating unit all emit positive-phase sound waves.

6. The electronic device according to claim 1, characterized in that, The third sound-generating unit includes a first vibration system and a first magnetic circuit system. The first vibration system includes a first diaphragm and a first voice coil fixed to the first diaphragm. The first magnetic circuit system includes a first lower clamping plate, a first main magnet fixed to the side of the first lower clamping plate near the first diaphragm, a first auxiliary magnet distributed along the first direction on both sides of the first main magnet and forming a first magnetic gap with the first main magnet, and a first pole core fixed to the side of the first main magnet away from the first lower clamping plate. The first voice coil is inserted into the first magnetic gap.

7. The electronic device according to claim 6, characterized in that, The first sound-generating unit and the second sound-generating unit include a shared second vibration system and a second magnetic circuit system. The second vibration system includes a second diaphragm and a third diaphragm arranged side by side along the second direction, and a second voice coil and a third voice coil respectively fixed to the second diaphragm. The second magnetic circuit system includes a second lower clamping plate, a second main magnet and a third main magnet distributed along the second direction, a second auxiliary magnet distributed along the second direction in the middle and on both sides of the second main magnet and the third main magnet to form a second magnetic gap and a third magnetic gap, and a second pole core and a third pole core respectively fixed to the side of the second main magnet and the third main magnet away from the second lower clamping plate. The second voice coil is inserted into the second magnetic gap, and the third voice coil is inserted into the third magnetic gap.

8. The electronic device according to claim 7, characterized in that, The first diaphragm, the second diaphragm, and the third diaphragm are an integral structure.

9. The electronic device according to claim 8, characterized in that, The second magnetic circuit system also includes an upper clamping plate, which is fixedly disposed on the side of the second auxiliary magnet away from the second lower clamping plate.

10. The electronic device according to claim 1, characterized in that, The sound-generating module further includes a first FPC component and a second FPC component. The first FPC component is electrically connected to the third sound-generating unit, and the second FPC component is electrically connected to the first sound-generating unit and the second sound-generating unit.

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