CN116847011A - Electronic equipment - Google Patents

Abstract

The application discloses an electronic device, which comprises: the device comprises a main board, a functional module and a device main body, wherein the functional module and the main board are arranged in the device main body, the main board is matched with the device main body to form a first front cavity and a second front cavity which are arranged at intervals, a first sound guide hole communicated with the first front cavity is formed in one surface of the device main body, and a second sound guide hole communicated with the second front cavity is formed in one side surface of the device main body; the electronic equipment further comprises a loudspeaker, the loudspeaker comprises a first sounding unit and a second sounding unit, the first sounding unit and the second sounding unit are arranged on at least one side of the functional module side by side, the sounding end of the first sounding unit faces the first front cavity, the sounding end of the second sounding unit faces the second front cavity, the first sounding unit is used for emitting sound signals, the second sounding unit is in a first state of in-phase sound signals emitted by the first sounding unit, and in a second state of in-phase sound signals emitted by the first sounding unit.

Description

Electronic equipment

Technical Field

The application belongs to the field of communication equipment, and particularly relates to electronic equipment.

Background

In order to implement a call function, a mobile communication device generally provides a sound guide hole in a non-screen area of the electronic device. When the user holds the electronic device close to the ear to receive sound, the position of the sound guide hole can be opposite to the ear of the user, so that the user can receive the content of the sound.

However, as the screen of the mobile terminal increases in duty, the distance between the screen and the side frame decreases, and the sound guide hole also gets closer to the side frame. Due to the variation of the sound guiding position, the sound guiding position may deviate from the position of the user's ear. In this case, a part of the sound output from the sound guide hole leaks into the environment and is not received by the user; in addition, in order to improve the outward effect of the electronic equipment, the top of the middle frame needs to be provided with an opening, and leakage is further caused. As consumer demand for privacy increases, so does the demand for sound leakage from electronic devices. Aiming at the problems, the socket needs to develop an electronic device, and the problem of serious sound leakage of the existing electronic device is solved.

Disclosure of Invention

The application aims to provide electronic equipment, which solves the problem of serious sound leakage of the existing electronic equipment.

In order to solve the technical problems, the application is realized as follows:

an embodiment of the present application provides an electronic device, including:

the device comprises a main board, a functional module and a device main body, wherein the functional module and the main board are arranged in the device main body, the main board is matched with the device main body to form a first front cavity and a second front cavity which are arranged at intervals, a first sound guide hole communicated with the first front cavity is formed in one surface of the device main body, and a second sound guide hole communicated with the second front cavity is formed in one side surface of the device main body;

the loudspeaker comprises a first sounding unit and a second sounding unit, wherein the first sounding unit and the second sounding unit are arranged on at least one side of the functional module side by side, the sounding end of the first sounding unit faces the first front cavity, the sounding end of the second sounding unit faces the second front cavity, the first sounding unit is used for emitting sound signals, and the second sounding unit is in a first state of in-phase sound signals emitted by the first sounding unit and a second state of opposite-phase sound signals emitted by the first sounding unit.

In the embodiment of the application, an electronic device is provided, wherein a main board, a functional module and a device main body are arranged in the device main body, the main board is matched with the device main body to form a first front cavity and a second front cavity which are isolated from each other and used for correcting high-frequency sound waves in audio, the first front cavity is connected with a first sound guide hole, and the second front cavity is connected with a second sound guide hole to transmit the sound waves; the loudspeaker is provided with the first sounding unit and the second sounding unit, the first sounding unit and the second sounding unit are arranged on at least one side of the functional module side by side, the stacking space inside the electronic equipment is reasonably utilized, and the utilization rate of the main board is improved; the first sounding unit is connected with the first front cavity and used for emitting sound signals, and the second sounding unit is connected with the second front cavity and used for carrying out state adjustment according to different requirements of users; when the electronic equipment is in the play mode, the second sound generating unit generates a sound signal in phase with the first sound generating unit, so that the sound of the electronic equipment is more stereo; when the electronic equipment is in the earphone mode, the second sounding unit emits a sound signal which is opposite to the first sounding unit, so that the effect of sound leakage is reduced. The application can improve the space utilization rate and the use experience of users while taking the sound leakage prevention effect under the modes of playing and receiving the telephone.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 shows a schematic diagram of a speaker in an electronic device according to a first embodiment of the present application;

FIG. 2 is an exploded view of a first vibration assembly and a second vibration assembly of an electronic device according to a first embodiment of the present application;

FIG. 3 is an exploded view of a first magnetic circuit assembly and a second magnetic circuit assembly in an electronic device according to a first embodiment of the present application;

fig. 4 shows a cross-sectional view of a speaker in an electronic device according to a first embodiment of the application;

fig. 5 is a schematic diagram showing the matching between a speaker and a camera in an electronic device according to a first embodiment of the present application;

fig. 6 is a schematic diagram showing a direction of a speaker ring in an electronic device according to a first embodiment of the present application;

FIG. 7 is a schematic diagram of a first side magnetic assembly of an electronic device according to a first embodiment of the application;

FIG. 8 is a schematic diagram of a second side magnetic assembly of an electronic device according to a first embodiment of the application;

fig. 9 shows an exploded view of a device main body in an electronic device according to a first embodiment of the present application;

fig. 10 shows a schematic view of front cavity sealing in an electronic device according to a first embodiment of the present application;

fig. 11 is a schematic diagram showing a first sound guiding hole and a second sound guiding hole in an electronic device according to a first embodiment of the present application;

fig. 12 is a schematic diagram showing a user making a call in an electronic device according to a first embodiment of the present application;

fig. 13 shows a schematic diagram of speaker positioning and sealing in an electronic device according to a first embodiment of the present application;

FIG. 14 is a schematic view showing sealing of a first front cavity and a second front cavity in an electronic device according to a first embodiment of the present application;

fig. 15 is a schematic view of a first sound guiding hole in an electronic device according to a first embodiment of the present application;

fig. 16 is a schematic diagram showing a second sound guiding hole in an electronic device according to a first embodiment of the present application;

FIG. 17 is a graph showing contrast of leakage curves of electronic devices according to the first embodiment of the present application;

fig. 18 is a schematic diagram showing the cooperation between a device body and near field communication in an electronic device according to a second embodiment of the present application;

fig. 19 shows an exploded view of a main body of an electronic device according to a second embodiment of the present application;

fig. 20 shows a schematic diagram of a speaker in an electronic device according to a second embodiment of the present application;

fig. 21 is a schematic cross-sectional view of a speaker in an electronic device according to a second embodiment of the present application;

fig. 22 is an exploded view showing a third vibration module and a fourth vibration module in an electronic device according to a second embodiment of the present application;

fig. 23 shows an exploded view of a third magnetic circuit assembly and a fourth magnetic circuit assembly in an electronic device according to a second embodiment of the present application;

FIG. 24 is a schematic diagram of a third magnetotrilateral component in an electronic device according to a second embodiment of the present application;

FIG. 25 is a diagram of a fourth magnetic assembly of an electronic device according to a second embodiment of the present application;

fig. 26 is a schematic diagram showing a stacking design of a device body in an electronic device according to a third embodiment of the present application;

fig. 27 shows a diagram of a middle frame sound guide of an electronic device in a third embodiment of the present application;

fig. 28 is a cross-sectional view of a second sound guide hole corresponding to a second diaphragm in an electronic device according to a third embodiment of the present application;

fig. 29 shows a cross-sectional view of a first diaphragm corresponding to a first sound guiding hole in an electronic device according to a third embodiment of the present application.

Reference numerals:

100. an apparatus main body; 101. a first front cavity; 102. a second front cavity; 103. a first sound guide hole; 104. a second sound guide hole; 105. a rear cavity; 106. a middle frame; 107. a cover plate; 108. a screen; 109. a motherboard bracket; 110. a first middle frame; 111. a second middle frame; 112. a first screen; 113. a second screen; 114. a front cavity bracket; 115. a front camera; 116. a main board; 117. a first foam; 118. a second foam; 119. sealing the bone position; 120. positioning surrounding bones; 121. sealing auxiliary materials; 122. a rear camera; 123. a first battery; 124. a screw column; 125. a second battery; 126. a sub-plate; 128. a battery; 129. double faced adhesive tape; 130. a functional module;

200. a speaker; 201. a first sound generating unit; 202. a second sound generating unit; 203. a basin stand; 204. a first vibration assembly; 205. a first magnetic circuit assembly; 206. a second vibration assembly; 207. a second magnetic circuit assembly; 208. a first dome; 209. a first diaphragm; 210. a first voice coil; 211. a first flexible circuit board; 212. a second dome; 213. a second diaphragm; 214. a second voice coil; 215. a second flexible circuit board; 216. a first side magnetic assembly; 217. a first center magnetic steel; 218. a first center pole piece; 219. a second side magnetic assembly; 220. a second center magnetic steel; 221. a second center pole piece; 222. a first side magnetic steel a; 223. a first side magnetic steel b; 224. a first side magnetic steel c; 225. a first side magnetic steel d; 226. a second side magnetic steel a; 227. a second side magnetic steel b; 228. a second side magnetic steel c; 229. a second side magnetic steel d; 230. a first magnetic shield; 231. a second magnetic shield; 232. a first side magnetic steel; 233. a second side magnetic steel; 234. a third vibration assembly; 235. a third magnetic circuit assembly; 236. a fourth vibration assembly; 237. a fourth magnetic circuit assembly; 238. a third dome; 239. a third diaphragm; 240. a third voice coil; 241. a third flexible circuit board; 242. a fourth dome; 243. a fourth diaphragm; 244. a fourth voice coil; 245. a fourth flexible circuit board; 246. a third side magnetic steel a; 247. a third side magnetic steel b; 248. a third side magnetic steel c; 249. third side magnetic steel d; 250. fourth magnetic steel a; 251. fourth magnetic steel b; 252. fourth magnetic steel c; 253. fourth magnetic steel d; 254. third side magnetic steel; 255. fourth magnetic steel; 256. a third magnetocaloric assembly; 257. a third center magnetic steel; 258. a third center pole piece; 259. a fourth magnetic assembly; 260. fourth center magnetic steel; 261. a fourth center pole piece; 262. a third magnetic shield; 263. and a fourth magnetic shield.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms "first," "second," and the like in the description of the present application, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more.

In order to solve the problem of sound leakage of the earphone, the existing scheme mainly carries out reverse phase superposition on sound waves of a rear cavity of a loudspeaker and a front cavity of the loudspeaker, but the scheme has lower reliability, and foreign matters such as dust, coffee, milk stains and the like outside easily cause the problem of blocking of a hole of the rear cavity, so that the sound leakage cannot be improved; on the other hand, the back cavity of the loudspeaker is opened, so that the volume of the back cavity is increased, the power born by the receiver is reduced, and the characteristics of the loudspeaker cannot be considered. Some researchers leak-proof by overlapping sound waves of two speaker devices in opposite phases; however, in this scheme, the stacking cost of multiple devices is high, and the utilization rate of the device main body is low, and because the stacking of the devices occupies a certain space, the volume of the rear cavity of the devices is reduced, thereby affecting the external sound quality. In addition, some researchers stack the dual-diaphragm speakers to improve the leakage, but because the dual-diaphragm speakers are thicker, the assembly is more complicated, and the sealing cannot be performed by using the device main body, which is not beneficial to the stacking of the electronic device and the utilization rate of the device main body.

In view of the above problems, an electronic device provided according to an embodiment of the present application is described below with reference to fig. 1 to 29.

As shown in fig. 1 and fig. 4, the electronic device provided in the embodiment of the present application includes a motherboard 116, a functional module 130, a device main body 100, and a speaker 200. The functional module 130 and the main board 116 are both disposed in the device main body 100, the main board 116 is matched with the device main body 100 to form a first front cavity 101 and a second front cavity 102 which are disposed at intervals, and the main board 116 is mainly matched with the memory chip to perform system function operation; the first front cavity 101 and the second front cavity 102 are sound reflection areas, and are mainly used for correcting the middle-high frequency sound wave, and have the effect of expanding the sound. The first front cavity 101 and the second front cavity 102 are arranged at intervals and are independent of each other, so that the sound waves cannot cause crosstalk influence in the transmission process. A first sound guiding hole 103 communicated with the first front cavity 101 is formed in one surface of the equipment main body 100, and a second sound guiding hole 104 communicated with the second front cavity 102 is formed in one side surface of the equipment main body 100; that is, the first sound guiding hole 103 is provided on the surface of the apparatus body 100, one side of the functional module 130, and the second sound guiding hole 104 is provided on the side of the apparatus body 100, the other side of the functional module 130. The sound is effectively transmitted by providing the first sound guiding hole 103 and the second sound guiding hole 104.

Alternatively, the cross sections of the first sound guiding hole 103 and the second sound guiding hole 104 may be racetrack, circular or elliptical, and schematic diagrams of the first sound guiding hole 103 and the second sound guiding hole 104 are shown in fig. 11.

Further, as shown in fig. 1, the speaker 200 is used for converting an electrical signal into an acoustic signal, which is widely used in electronic devices such as mobile phones and computers. The speaker 200 in the embodiment of the present application includes the first sound generating unit 201 and the second sound generating unit 202, where the first sound generating unit 201 and the second sound generating unit 202 are arranged side by side on at least one side of the functional module, so that the stacking space of the electronic device is reasonably utilized, and the utilization rate of the main board 116 is improved. The sound emitting end of the first sound emitting unit 201 faces the first front cavity 101, the sound emitting end of the second sound emitting unit 202 faces the second front cavity 102, the first sound emitting unit 201 is configured to emit a sound signal, and the second sound emitting unit 202 has a first state of in-phase sound signals emitted by the first sound emitting unit 201 and a second state of anti-phase sound signals emitted by the first sound emitting unit 201.

Specifically, when a user needs to listen to music or listen to a hands-free call, an external playing mode of the electronic device is started, the first sound generating unit 201 sends out a sound signal, the sound signal is corrected and amplified through the first front cavity 101, the sound signal is transmitted through the first sound guiding hole 103 on the surface of the device main body 100, the second sound generating unit 202 has a first state of an in-phase sound signal sent out by the first sound generating unit 201, that is, the second sound generating unit 202 sends out a sound signal in-phase with the first sound generating unit 201, the sound signal is corrected and amplified through the second front cavity 102, and then is transmitted through the second sound guiding hole 104 on the side surface of the device main body 100, and the sound breaking effect can be reduced by setting the second sound guiding hole 104 on the side surface, so that the electronic device forms a stereo effect, and the sound of the electronic device is more stereo, immersed and has better sound quality.

When the user needs to answer a call or voice information, the earpiece mode of the electronic device is activated, and as shown in fig. 12, the first sounding unit 201 sounds, and a part of the sounds are received by the user, and another part of sounds leak to an area outside the device main body 100. In the second state that the second sound generating unit 202 and the first sound generating unit 201 on the side face generate the opposite-phase sound signals, the sound waves generated by the second sound generating unit 202 can effectively offset the sound waves leaked by the first sound generating unit 201, so that the effect of reducing leakage sound is achieved, and a leakage sound comparison curve is shown in fig. 17.

In the embodiment of the application, an electronic device is provided, wherein a main board 116, a functional module 130 and a device main body 100 are arranged in the device main body 100, the functional module 130 and the main board 116 are matched with the device main body 100 to form a first front cavity 101 and a second front cavity 102 which are isolated from each other, the first front cavity 101 is connected with a first sound guide hole 103, and the second front cavity 102 is connected with a second sound guide hole 104 to transmit sound waves; by arranging the loudspeaker 200, the loudspeaker 200 is internally provided with a first sounding unit 201 and a second sounding unit 202, the first sounding unit 201 and the second sounding unit 202 are arranged on at least one side of the functional module 130 side by side, the stacking space inside the electronic equipment is reasonably utilized, and the utilization rate of the main board 116 is improved; the first sounding unit 201 is connected with the first front cavity 101 and is used for sounding signals, and the second sounding unit 202 is connected with the second front cavity 102 and is used for adjusting states according to different requirements of users; when the electronic equipment is in the play mode, the second sound generating unit 202 generates a sound signal in phase with the first sound generating unit 201, so that the sound of the electronic equipment is more stereo; when the electronic device is in the earpiece mode, the second sound generating unit 202 generates a sound signal in phase opposition to the first sound generating unit 201, thereby achieving the effect of reducing leakage. The application can improve the space utilization rate and the use experience of users while taking the sound leakage prevention effect under the modes of playing and receiving the telephone.

According to the electronic device provided by the embodiment of the application, as shown in fig. 14 and 15, a main board 116 is provided with a rear cavity 105 which is communicated with both the first front cavity 101 and the second front cavity 102 in the device main body 100; the rear cavity 105 is used to modify the low frequency sound waves in the electronic device to make the low frequency sound powerful. The first sound generating unit 201 is disposed in the rear cavity 105 and blocks the first front cavity 101 and the rear cavity 105, and the first front cavity 101 and the rear cavity 105 are completely partitioned; the second sound generating unit 202 is disposed in the rear chamber 105 and blocks the second front chamber 102 and the rear chamber 105, and similarly, the second front chamber 102 and the rear chamber 105 are completely separated, and the volume of the rear chamber 105 is as large as possible due to the small amplitude of the speaker 200 and the small air compression volume, and the rear chamber 105 needs to be completely sealed to avoid an acoustic short circuit.

In the embodiment provided by the present application, as shown in fig. 4, the speaker 200 further includes: a basin stand 203; the basin stand 203 is used for installing the fixing component, and the basin stand can be made of steel plates or plastic with higher hardness. The first sound generating unit 201 includes a first vibration assembly 204 and a first magnetic circuit assembly 205; the second sound generating unit 202 includes a second vibration assembly 206 and a second magnetic circuit assembly 207; the first vibration component 204 and the second vibration component 206 are used for pushing air to vibrate, the first magnetic circuit component 205 and the second magnetic circuit component 207 are used for providing a stable magnetic field, the basin frame 203 is divided into two parts, two end faces of the first part of the basin frame 203 are respectively provided with the first vibration component 204 and the first magnetic circuit component 205, and two end faces of the second part of the basin frame 203 are respectively provided with the second vibration component 206 and the second magnetic circuit component 207.

Further, each of the first vibration member 204 and the second vibration member 206 includes a dome, a diaphragm, a voice coil, and a flexible circuit board, which are sequentially stacked from top to bottom. The diaphragm of the first vibration member 204 protrudes in a direction away from the apparatus body 100, and the diaphragm of the second vibration member 206 is recessed in a direction toward the apparatus body 100.

Specifically, as shown in fig. 2, the first vibration assembly 204 includes: a first dome 208, a first diaphragm 209, a first voice coil 210, and a first flexible circuit board 211 (Flexible Printed Circuit, FPC); the second vibration assembly 206 includes: a second dome 212, a second diaphragm 213, a second voice coil 214, and a second flexible circuit board 215. Specifically, the first dome 208 and the second dome 212 are hemispherical diaphragms, which is beneficial to improving the directivity of the loudspeaker 200 and improving the strength of the first diaphragm 209 and the second diaphragm 213; the first diaphragm 209 and the second diaphragm 213 are sound-producing components of the core of the speaker 200, and the first diaphragm 209 and the second diaphragm 213 generally include a center portion, a folded ring portion, and a fixing portion; the first diaphragm 209 and the second diaphragm 213 are fixed to the frame 203 of the speaker 200 by fixing portions; the folded ring parts of the first diaphragm 209 and the second diaphragm 213 may be all concave folded rings, or may be all convex folded rings, or may be one convex folded ring and one concave folded ring; illustratively, as shown in fig. 6, the first diaphragm 209 is a convex-folded ring, and the second diaphragm 213 is a concave-folded ring. The first voice coil 210 and the second voice coil 214 are coils through which the speaker 200 passes current, and are the heart of the speaker 200, and the performance of the voice coils affects the sound intensity characteristics, sound intensity level, impedance profile, distortion, transient characteristics, speaker parameters, and sound quality of the speaker 200. Further, the first flexible circuit board 211 and the second flexible circuit board 215 mainly function as conduction, electrically connecting the speaker 200 with the apparatus main body 100.

Further, as shown in fig. 3, the first magnetic circuit assembly 205 includes a first center pole piece 218, a first center magnetic steel 217, and a first side magnetic assembly 216 sequentially disposed from top to bottom; the first central pole piece 218 and the first central magnetic steel 217 are equal in size and shape; a first center pole piece 218 and a first center magnetic steel 217 may be placed in the first side magnetic assembly 216; similarly, the second magnetic circuit assembly 207 includes a second center pole piece 221, a second center magnetic steel 220, and a second side magnetic assembly 219 sequentially disposed from top to bottom. The first side magnet assembly 216 extends in a first direction and the second side magnet assembly 219 extends in a second direction, the first direction being perpendicular to the second direction.

As shown in fig. 7, the first side magnetic assembly 216 includes a first side magnetic steel 232 and a first magnetic cover 230; the first side magnetic steel 232 includes a first side magnetic steel a222, a first side magnetic steel b223, a first side magnetic steel c224, and a first side magnetic steel d225; similarly, as shown in fig. 8, the second side magnetic assembly 219 includes a second side magnetic steel 233 and a second magnetic shield 231, and the second side magnetic steel 233 includes a second side magnetic steel a226, a second side magnetic steel b227, a second side magnetic steel c228, and a second side magnetic steel d229. The first side magnetic steel 232 and the second side magnetic steel 233 are used to cooperate with the first center magnetic steel 217 and the second center magnetic steel 220 to provide the speaker 200 with the optimal magnetic induction.

The number and shape of the first side magnetic steel 232 and the second side magnetic steel 233 are not particularly limited. The first and second center pole pieces 218, 221 are specifically magnetically permeable pole pieces for magnetic conduction. The first and second magnetic shields 230 and 231 serve to prevent interference of an external magnetic field.

In the embodiment of the present application, as shown in fig. 26, in order to meet the shooting requirement of the user on the electronic device, the functional module 130 is specifically a camera module, which includes a front camera 115 and a rear camera 122. In order to bypass the cameras, as shown in fig. 5, the frame 203 is generally bent in an L shape, a first portion of the frame 203 extends along an edge of the camera module in a first direction, a second portion of the frame 203 extends along an edge of the camera module in a second direction, the first direction is perpendicular to the second direction, and accordingly, the speaker 200 is also in an L shape and is fixedly mounted on the frame 203.

As shown in fig. 9, an electronic device provided according to an embodiment of the present application, a device main body 100 includes: a main board 116, a middle frame 106, a cover plate 107 and a screen 108; the middle frame 106 is provided with a first channel and a second channel, the first channel bonds the middle frame 106 and the screen 108 through the double-sided tape 129, the screen 108 is arranged on the middle frame 106, and a first front cavity 101 is formed among the screen 108, the main board 116 and the middle frame 106; the second channel is sealed through the apron 107, and the middle frame 106, mainboard 116 and the apron 107 are constructed with the second antechamber 102 between, guarantee that mutually independent is isolated between first channel and the second channel, can not cause the acoustic wave crosstalk influence.

Further, a first sound guiding hole 103 is formed in the screen 108 or in a gap among the screen 108, the main board 116 and the middle frame 106, a second sound guiding hole 104 is formed in the side face of the middle frame 106, the first sound guiding hole 103 is connected with the first front cavity 101, and the second sound guiding hole 104 is connected with the second front cavity 102; specifically, as shown in fig. 10 and 14, the first front cavity 101 is formed by sealing the main board 116 on the middle frame 106 with the periphery on the screen 108, and the second front cavity 102 is sealed by the cover 107, so as to ensure that the interior of the second front cavity 102 is not in communication with the first front cavity 101.

As shown in fig. 9, the device main body 100 further includes: the main board support 109, the main board support 109 is disposed on the middle frame 106, and cooperates with the middle frame 106 and the main board 116 to form the rear cavity 105.

Specifically, the first diaphragm 209 and the second diaphragm 213 share a rear cavity 105, and the rear cavity 105 is surrounded by the main board bracket 109, the main board 116, the middle frame 106, the speaker 200, the first foam 117 and the second foam 118, so as to ensure a larger space. As shown in fig. 13 and 15, the middle frame 106 is provided with a sealing bone 119, and the first foam 117 and the second foam 118 are attached to the sealing bone 119, so that the rear cavity 105 of the speaker 200 is pressed and sealed with the motherboard bracket 109, so as to avoid an acoustic short circuit. In addition, as shown in fig. 13, a positioning surrounding bone 120 is further disposed in the middle frame 106, and is mainly used for positioning the assembly of the speaker 200.

When a user needs to answer a call or voice information, an earphone mode of the electronic device is started, the first vibrating diaphragm 209 emits sound, a sound signal is transmitted to the ear of the user through the first front cavity 101 through the first sound guide hole 103 on the screen 108, the ear of the user receives the sound information, meanwhile, the sound emitted by the first vibrating diaphragm 209 leaks to an area outside the device main body 100, at the moment, the second vibrating diaphragm 213 emits sound waves with opposite phases, and the sound waves leaked by the first vibrating diaphragm 209 can be effectively counteracted, so that the effect of reducing sound leakage is achieved.

Further, when the user needs to listen to music or listen to hands-free conversation, the external mode of the electronic device is started, the first diaphragm 209 and the second diaphragm 213 of the speaker 200 emit sound waves with the same phase, and the sound waves are transmitted from the first sound guiding hole 103 and the second sound guiding hole 104, so that the speaker 200 forms a stereo effect, the sound of the electronic device is more stereo immersed, and the sound quality is better.

In addition, as shown in fig. 9, the electronic device provided in the embodiment of the present application further includes a sub-board 126, a battery 128, an image capturing module, and other devices. The sub-board 126 is responsible for charging the electronic device, transmitting an audio signal, signal connection processing, sound conversion processing, and the like. The battery 128 is used for providing the electric quantity required in the operation process for the electronic device, the camera module mainly comprises a front camera 115 and a rear camera 122, the front camera 115 is mainly used for video call, facial recognition and the like, and the rear camera 122 is mainly used for photographing, scanning and the like.

It should be noted that, the first embodiment of the present application can achieve the following beneficial effects:

(1) The space near the proactive is reasonably utilized, so that the stacking of the electronic equipment is more compact, and the space of the electronic equipment is utilized to the maximum extent.

(2) Better gives consideration to the effects of external playing and sound leakage prevention.

As shown in fig. 18 and 21, in order to further reasonably utilize the space of the apparatus main body 100, the volume of the cavity required for maintaining the external sound quality by reasonably avoiding devices such as a near field communication (Near Field Communication, NFC) coil, etc., in other embodiments, the first sound generating unit 201 and the second sound generating unit 202 in the speaker 200 have different heights. As shown in fig. 18, the first sound generating unit 201 is slightly higher than the second sound generating unit 202.

Specifically, as shown in fig. 19 and 20, the speaker 200 in the present embodiment includes a cover plate 107, a third vibration assembly 234, a fourth vibration assembly 236, a third magnetic circuit assembly 235, a fourth magnetic circuit assembly 237, and a tub 203. As shown in fig. 22, the third vibration assembly 234 includes a third dome 238, a third diaphragm 239, a third voice coil 240, and a third flexible circuit board 241, which are disposed in this order from top to bottom; the fourth vibration assembly 236 includes a fourth dome 242, a fourth diaphragm 243, a fourth voice coil 244, and a fourth flexible circuit board 245, which are sequentially disposed from top to bottom.

Further, as shown in fig. 23, the third magnetic circuit assembly 235 includes a third central pole piece 258, a third central magnetic steel 257 and a third side magnetic assembly 256, which are sequentially arranged from top to bottom, wherein the sizes and shapes of the third central pole piece 258 and the third central magnetic steel 257 are equal; a third center pole piece 258 and a third center magnetic steel 257 may be placed in the third side magnetic assembly 256; likewise, the fourth magnetic circuit assembly 237 includes a fourth magnetic assembly 259, a fourth center magnetic steel 260, a fourth center pole piece 261; the fourth center pole piece 261, the fourth center magnetic steel 260, and the fourth magnetic assembly 259 are sequentially disposed from top to bottom.

Wherein, as shown in fig. 24, the third side magnetic assembly 256 includes a third side magnetic steel 254 and a third magnetic shield 262; the third side magnetic steel 254 includes: third side magnetic steel a246, third side magnetic steel b247, third side magnetic steel c248 and third side magnetic steel d249; similarly, as shown in fig. 25, the fourth magnetic assembly 259 includes a fourth magnetic steel 255 and a fourth magnetic cover 263; the fourth magnetic steel 255 includes: fourth magnetic steel a250, fourth magnetic steel b251, fourth magnetic steel c252 and fourth magnetic steel d253.

Specifically, when the user needs to listen to music or listen to a hands-free call, the external playing mode of the electronic device is started, the first sound generating unit 201 generates a sound signal, the sound signal is corrected and amplified through the first front cavity 101, the second sound generating unit 202 has a first state of an in-phase sound signal generated by the first sound generating unit 201, that is, the second sound generating unit 202 generates a sound signal in-phase with the first sound generating unit 201, and after the sound signal is corrected and amplified through the second front cavity 102, the electronic device can form a stereo effect due to inconsistent heights of the first sound generating unit 201 and the second sound generating unit 202, so that the sound of the electronic device is more stereo immersed, and the tone quality is better.

When the user needs to answer a call or voice information, the earpiece mode of the electronic device is activated, and as shown in fig. 18, the first sounding unit 201 sounds, and a part of the sounds are received by the user, and another part of sounds leak to an area outside the device main body 100. The second sound generating unit 202 is slightly lower than the first sound generating unit 201, the second sound generating unit 202 and the first sound generating unit 201 generate a second state of the opposite-phase sound signal, and the sound wave generated by the second sound generating unit 202 can effectively counteract the sound wave leaked by the first sound generating unit 201, so that the effect of reducing the leakage sound is achieved.

With the continuous development of mobile intelligence, the popularity and the use rate of electronic equipment are higher and higher, and people's daily work and life are more and more separated from the electronic equipment. In recent years, electronic devices having a folding display screen on the market are endlessly layered, and in other embodiments, as shown in fig. 26, 27, 28, and 29, the device body 100 includes: a first middle frame 110, a second middle frame 111, a first screen 112, and a second screen 113; the main board 116 is provided with a hollowed-out area, the first middle frame 110 and the second middle frame 111 are rotatably connected, the first screen 112 is connected to one side of the first middle frame 110 and one side of the second middle frame 111, the second screen 113 is connected to the other side of the first middle frame 110, a first front cavity 101 and a second front cavity 102 corresponding to the hollowed-out area are formed in the first middle frame 110, a first sound guide hole 103 is formed between the second screen 113 or the second screen 113 and the first middle frame 110, and a second sound guide hole 104 is formed in the side face of the first middle frame 110.

In the embodiment of the present application, as shown in fig. 28, the apparatus main body 100 further includes: the front cavity supporter 114, the front cavity supporter 114 is disposed on the first middle frame 110 between the second screen 113 and the first middle frame 110, and the front cavity supporter 114 forms the first front cavity 101 and the second front cavity 102 in the first middle frame 110. The speaker 200 is disposed on the front cavity bracket 114, and the first front cavity 101 and the second front cavity 102, which are independent of each other, are formed by the sealing auxiliary material 121 and the sealing bone 119 on the front cavity bracket 114. In addition, the front cavity bracket 114 may also serve as the main board bracket 109, and may assist in assembling the front camera 115, sensor, and the like.

Further, as shown in fig. 26, a rear camera 122 and other devices such as a main chip are provided at the second center 111 to secure the volume of the rear cavity 105. Below the main board 116 area of the first and second screens 112, 113 are first and second batteries 123, 125, the first and second batteries 123, 125 having sufficient capacity to provide power to the first and second screens 112, 113, wherein the first screen 112 is primarily supported by the first bezel 110 and the second screen 113 is primarily supported by the front cavity bracket 114 and the second battery 125 area.

As shown in fig. 26, the rear side of the first screen 112 is provided with key components such as a speaker 200, a main board 116, a front camera 115, a rear cavity 105, a screw post 124 for fixing the front cavity bracket 114, a first battery 123, a sub-board 126, etc., and the speaker 200 includes a first sound generating unit 201 and a second sound generating unit 202; wherein the first sound generating unit 201 is a side-by-side dual-diaphragm speaker, and the second sound generating unit 202 is a lower speaker; on the rear side of the second screen 113, the rear camera 122, the second battery 125, and another portion of the main board 116 are laid out under the battery 128 cover. Wherein, each subassembly tiling overall arrangement, make full use of folding screen thickness space extremely, the wider characteristics of area.

According to the electronic device provided by the application, a first middle frame 110 is provided with a rear cavity 105 communicated with a first front cavity 101 and a second front cavity 102; the first sound generating unit 201 is disposed in the rear cavity 105 and blocks the first front cavity 101 and the rear cavity 105; the second sound generating unit 202 is disposed in the rear chamber 105 and blocks the second front chamber 102 and the rear chamber 105.

As shown in fig. 27 and 28, the sealing auxiliary material 121 at the sealing bone 119 is pressed by the sealing auxiliary material 121 in combination with the action of the screw column 124, so that the sealing between the front cavity bracket 114 and the middle frame 106 is enhanced. After the sound waves enter the first front cavity 101 and the second front cavity 102 respectively, the sound waves are led out from the first sound guide hole 103 and the second sound guide hole 104 respectively. The first sound guiding hole 103 is a micro-slit hole, and the second sound guiding hole 104 is a middle frame hole. A through hole is provided above the second front cavity 102 of the first middle frame 110 for communicating the second screen 113 with the micro-seam formed between the first middle frame 110.

Further, sound waves emitted from the first diaphragm 209 and the second diaphragm 213 of the speaker 200 in the embodiment of the present application are directed to different front cavities. Fig. 28 is a cross-sectional view of the second front cavity 102 corresponding to the second diaphragm 213, where the sound wave emitted from the second diaphragm 213 passes through the front cavity formed on the front cavity bracket 114, the sealing auxiliary material 121 between the front cavity bracket 114 and the structure of the middle frame 106, the micro-slit opening formed by the second front cavity 102, the second screen 113 and the middle frame 106, and finally the sound wave is emitted from the micro-slit opening. The propagation direction of the sound wave is shown by the arrow in fig. 28.

Fig. 29 is a sectional view of the first front cavity 101 corresponding to the first diaphragm 209, where the sound wave passes through the front cavity formed on the front cavity bracket 114 and finally is emitted from the opening of the middle frame, and the propagation direction of the sound wave is shown by the arrow in fig. 29. The rear cavity 105 space is formed by the center frame 106, the front cavity bracket 114, and the main plate 116 sealed with a sealing foam. The sound wave below the first diaphragm 209 of the loudspeaker 200 needs to flow into the space of the rear cavity 105 through the air gap, and because the air below the first diaphragm 209 and the second diaphragm 213 of the loudspeaker 200 are interconnected, the equivalent volume of the rear cavity 105 can be increased, and the low frequency and the sound leakage performance can be improved.

Specifically, when a user needs to listen to music or listen to a hands-free call, the external mode of the electronic device is started, the first diaphragm 209 emits a sound signal, the sound signal is guided to the first front cavity 101 for correction and amplification, the sound signal is transmitted from the middle frame opening, the second diaphragm 213 emits a sound signal in phase with the first diaphragm 209, and after the sound signal is corrected and amplified by the second front cavity 102, the sound signal is transmitted from the micro-slit opening, so that the electronic device forms a stereo effect, the sound of the electronic device is more stereo immersed, and the sound quality is better.

When the user needs to answer a call or voice information, the earpiece mode of the electronic device is started, as shown in fig. 29, the first diaphragm 209 emits a sound, and a part of the sound is received by the user, and another part of the sound leaks out of the device main body 100. The second diaphragm 213 emits an acoustic signal that is opposite to the first diaphragm 209, and the acoustic wave leaked from the first diaphragm 209 needs to flow into the space of the rear cavity 105 through the air gap, and because the air under the first diaphragm 209 and the second diaphragm 213 of the speaker 200 is interconnected, the effect of reducing the leakage sound is achieved.

It should be noted that the application can achieve the following beneficial effects:

(1) The air under the first diaphragm 209 and the second diaphragm 213 of the speaker 200 are interconnected, so that the equivalent rear cavity 105 volume of each other can be increased, and the low frequency and sound leakage performance can be improved.

(2) The flexible screen is utilized on the flexible screen, and the development trend of electronic equipment is met.

The electronic device in the embodiment of the present application may be an electronic device having a display function, such as a mobile phone, a vehicle-mounted device (may also be referred to as a car machine), a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, a netbook, a personal digital assistant (personal digital assistant, PDA), a wearable electronic device, and a virtual reality device, which is not limited in any way.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. An electronic device, comprising:

the device comprises a main board, a functional module and a device main body, wherein the functional module and the main board are arranged in the device main body, the main board is matched with the device main body to form a first front cavity and a second front cavity which are arranged at intervals, a first sound guide hole communicated with the first front cavity is formed in one surface of the device main body, and a second sound guide hole communicated with the second front cavity is formed in one side surface of the device main body;

the loudspeaker comprises a first sounding unit and a second sounding unit, wherein the first sounding unit and the second sounding unit are arranged on at least one side of the functional module side by side, the sounding end of the first sounding unit faces the first front cavity, the sounding end of the second sounding unit faces the second front cavity, the first sounding unit is used for emitting sound signals, and the second sounding unit is in a first state of in-phase sound signals emitted by the first sounding unit and a second state of opposite-phase sound signals emitted by the first sounding unit.

2. The electronic device of claim 1, wherein the motherboard is provided with a rear cavity in the device body that communicates with both the first front cavity and the second front cavity;

the first sound generating unit is arranged in the rear cavity and blocks the first front cavity and the rear cavity; the second sound generating unit is disposed in the rear cavity and blocks the second front cavity and the rear cavity.

3. The electronic device of claim 1, wherein the speaker further comprises: a basin stand; the first sound generating unit comprises a first vibration component and a first magnetic circuit component; the second sound generating unit comprises a second vibration component and a second magnetic circuit component;

the basin frame is divided into two parts, the two end surfaces of the first part of the basin frame are respectively provided with the first vibration component and the first magnetic circuit component, and the two end surfaces of the second part of the basin frame are respectively provided with the second vibration component and the second magnetic circuit component.

4. The electronic device of claim 3, wherein the first vibration assembly and the second vibration assembly each comprise: the ball top, the vibrating diaphragm, the voice coil and the flexible circuit board are sequentially stacked from top to bottom;

the vibrating diaphragm of the first vibrating assembly protrudes towards the direction away from the equipment main body, and the vibrating diaphragm of the second vibrating assembly is recessed towards the direction close to the equipment main body.

5. The electronic device of claim 3, wherein the functional module is a camera module, the frame is in an L-shaped bent configuration, a first portion of the frame extends along an edge of the camera module in a first direction, a second portion of the frame extends along an edge of the camera module in a second direction, and the first direction is perpendicular to the second direction.

6. The electronic device of claim 2, wherein the device body comprises: the device comprises a middle frame, a cover plate and a screen;

the screen is arranged on the middle frame, the screen, the main board and the middle frame are matched to form the first front cavity, the middle frame, the main board and the cover plate are matched to form the second front cavity, the first sound guide holes are formed in the screen or in gaps between the screen and the middle frame, and the second sound guide holes are formed in the side face of the middle frame.

7. The electronic device of claim 6, wherein the device body further comprises: the main board support is arranged on the middle frame and is matched with the middle frame and the main board to form the rear cavity.

8. The electronic device of any one of claims 1-7, wherein the first sound-emitting unit and the second sound-emitting unit in the speaker have different heights.

9. The electronic device of claim 1, wherein the device body comprises: the device comprises a first middle frame, a second middle frame, a first screen and a second screen; the main board is provided with a hollowed-out area;

the first middle frame is rotatably connected with the second middle frame, the first screen is connected to one side of the first middle frame and one side of the second middle frame, the second screen is connected to the other side of the first middle frame, the first front cavity and the second front cavity corresponding to the hollowed-out area are formed in the first middle frame, the first sound guide hole is formed between the second screen or the second screen and the first middle frame, and the second sound guide hole is formed in the side face of the first middle frame.

10. The electronic device of claim 9, wherein the device body further comprises: the front cavity bracket is arranged on the first middle frame and is positioned between the second screen and the first middle frame, and the front cavity bracket forms the first front cavity and the second front cavity in the first middle frame.

11. The electronic device of claim 9, wherein a rear cavity is provided in the first middle frame in communication with both the first front cavity and the second front cavity;

the first sound generating unit is arranged in the rear cavity and blocks the first front cavity and the rear cavity;

the second sound generating unit is disposed in the rear cavity and blocks the second front cavity and the rear cavity.