CN216700051U

CN216700051U - Electronic device

Info

Publication number: CN216700051U
Application number: CN202220069751.9U
Authority: CN
Inventors: 张�成
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-06-07
Anticipated expiration: 2032-01-11
Also published as: WO2023134305A1

Abstract

The application provides an electronic device, which comprises a shell and a loudspeaker; the first vibrating diaphragm and the second vibrating diaphragm are respectively arranged on two opposite sides of the loudspeaker, and can be driven to emit sounds with the same vibration amplitude and opposite phases, so that a dipole sound source is formed; the shell is internally provided with a first sound outlet channel and a second sound outlet channel which are respectively communicated with the first vibrating diaphragm and the second vibrating diaphragm, and the surface of the shell is provided with a first sound outlet hole and a second sound outlet hole which are respectively communicated with the first sound outlet channel and the second sound outlet channel. The electronic equipment that this application embodiment provided, control double-diaphragm speaker sends the sound that vibration amplitude is the same and the opposite phase through two independent vocal passageways, and then forms the dipole sound source, produces the superposition of anti-phase sound field in electronic equipment's far field department, reduces sound loudness and definition to make other people of electronic equipment far field department can't listen clearly to conversation sound, realize the privacy of conversation.

Description

Electronic device

Technical Field

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

Background

Electronic equipment in the conventional art, under the conversation mode, generally use single speaker to carry out the sound production, sound can reveal all around to the cell-phone through the slit vocal hole on screen top and the vocal hole on center top, and the vocal hole on center top especially can increase the sound of electronic equipment back direction and reveal, and the privacy is poor, influences user and uses experience.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides electronic equipment, which comprises a shell and a loudspeaker; the first vibrating diaphragm and the second vibrating diaphragm are respectively arranged on two opposite sides of the loudspeaker, and can be driven to emit sounds with the same vibration amplitude and opposite phases, so that a dipole sound source is formed; the inside of casing be equipped with respectively with first vibrating diaphragm and the first sound channel of going out of second vibrating diaphragm intercommunication and second sound channel, the surface of casing be equipped with respectively with first sound channel and the first sound hole and the second sound hole of going out of sound channel intercommunication.

The electronic equipment that this application embodiment provided, control double-diaphragm speaker sends the sound that vibration amplitude is the same and the opposite phase through two independent vocal passageways, and then forms the dipole sound source, produces the superposition of anti-phase sound field in electronic equipment's far field department, reduces sound loudness and definition to make other people of electronic equipment far field department can't listen clearly to conversation sound, realize the privacy of conversation.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

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

FIG. 2 is a schematic diagram of another perspective of the electronic device in the embodiment of FIG. 1;

FIG. 3 is a schematic diagram of the electronic device in FIG. 1 with a partially disassembled structure;

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

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

FIG. 6 is a schematic cross-sectional view of a portion of another embodiment of an electronic device of the present application;

fig. 7 is a block diagram illustrating a structural composition of an embodiment of an electronic device according to the present application.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Likewise, the following examples are only some but not all examples of the present invention, and all other examples obtained by those skilled in the art without any inventive step are within the scope of the present invention.

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

As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.

Referring to fig. 1 to fig. 3 together, fig. 1 is a schematic overall structure diagram of an embodiment of an electronic device of the present application, fig. 2 is a schematic structural diagram of another view angle of the electronic device in the embodiment of fig. 1, and fig. 3 is a schematic partial structure exploded view of the electronic device in the embodiment of fig. 1. It should be noted that the electronic device in the present application may include an electronic device with a speaker, such as a mobile phone, a tablet computer, a notebook computer, and a wearable device. In the drawings of the present embodiment, only a mobile phone is taken as an example for explanation. The electronic device 10 includes a housing 100 and a speaker 200. Of course, the electronic device may further include a display screen, a battery, a circuit board, a camera, and other structures, and details in the embodiments of the present application are omitted within the understanding range of those skilled in the art. It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the embodiments of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or may alternatively include other steps or elements inherent to such process, method, article, or apparatus.

Specifically, referring to fig. 4 together, fig. 4 is a schematic cross-sectional view of the electronic device at a-a in the embodiment of fig. 1, optionally, the speaker 200 in this embodiment is a dual-diaphragm speaker, a first diaphragm 201 and a second diaphragm 202 are respectively disposed on two opposite sides of the speaker 200, and the first diaphragm 201 and the second diaphragm 202 can be driven to emit sounds with the same vibration amplitude and opposite phases, so as to form a dipole sound source. A dipole sound source is a composite sound source consisting of two closely spaced sound source points S + and S-which vibrate at the same amplitude but in opposite phases.

Referring to fig. 4, in the present embodiment, a first sound outlet channel 1100 and a second sound outlet channel 1200 respectively communicated with the first diaphragm 201 and the second diaphragm 202 are disposed inside the housing 100, and a first sound outlet hole 101 and a second sound outlet hole 102 respectively communicated with the first sound outlet channel 1100 and the second sound outlet channel 1200 are disposed on a surface of the housing 100.

Optionally, with continued reference to fig. 1 and fig. 2, the housing 100 in the present embodiment includes a first surface 110, a second surface 120, and a side surface 130; the first surface 110 and the second surface 120 are disposed opposite to each other, and the side surface 130 is connected to the first surface 110 and the second surface 120, respectively. Wherein the side 130 may be a circumferential structure. The first surface 110 may be provided with a display screen of the electronic device, and the second surface 120 may be a rear case of the electronic device. The embodiments of the present application are illustrated by way of example only and are not intended to limit the design of other components of an electronic device. It should be noted that the terms "first", "second" and "third" in the embodiments of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Referring to fig. 4, in the present embodiment, an angle a1 between the direction X1 of the first sound outlet 101 and the direction perpendicular to the first surface 110 (the direction of the arrow Z1 in fig. 4) is less than 45 degrees, wherein the first sound outlet 101 may be disposed on the first surface 110 or at an angle between the first surface 110 and the side surface 130 (the top side surface) (shown in fig. 4). The sound output from the first sound output hole 101 is mainly used for an application scene with high privacy requirements, such as a call, which requires a small sound.

Optionally, the second sound outlet hole 102 in this embodiment is disposed on the side (generally, the top side) 130, and the orientation of the second sound outlet hole 102 is not particularly limited. The sound output from the second sound outlet 102 has two application scenarios. In a privacy scene, the sound of the second sound outlet 102 is matched with the sound of the first sound outlet 101 to generate sounds with the same vibration amplitude and opposite phases, so that a dipole sound source is formed, so that an anti-phase sound field superposition is generated at a far field of the electronic equipment, the loudness and the definition of the sound are reduced, other people at the far field of the electronic equipment cannot hear the call sound, and the privacy of the call is realized. In an application scene of an external power amplifier, the sound of the second sound outlet 102 and the sound of the first sound outlet 101 generate sound with the same phase, so that the same-phase sound field superposition is formed, the sound loudness is enhanced, and the external playing effect of the electronic equipment is improved.

With continued reference to fig. 4, to achieve a better privacy effect, a reliable and effective dipole sound source is formed. Optionally, the volume of the first sound emitting channel 1100 is 0.5-2 times the volume of the second sound emitting channel 1200. Specifically, the volume of the first sound emitting channel 1100 may be 0.5 times, 0.6 times, 0.8 times, 1 time (the same), 1.5 times, 2 times, and the like of the volume of the second sound emitting channel 1200, and the length of the first sound emitting channel 1100 may be 0.5 to 2 times of the length of the second sound emitting channel 1200. Specifically, the length of the first sound emitting channel 1100 may be 0.5 times, 0.6 times, 0.8 times, 1 time (the same), 1.5 times, 2 times, or the like of the volume of the second sound emitting channel 1200. Optionally, in an embodiment, it may be specifically designed that the volumes and lengths of the first sound emitting channel 1100 and the second sound emitting channel 1200 are the same.

Optionally, the area of the first sound outlet 101 is 0.5 to 2 times the area of the second sound outlet 102, and specifically, the area of the first sound outlet 101 may be 0.5 times, 0.6 times, 0.8 times, 1 time (the same), 1.5 times, 2 times, and the like of the area of the second sound outlet 102. In some embodiments, the area of the first sound outlet 101 and the area of the second sound outlet 102 may be designed to be the same. It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

Optionally, with reference to fig. 4, the area of the first diaphragm 201 in this embodiment is 0.5-2 times the area of the second diaphragm 202, and specifically, the area of the first diaphragm 201 may be 0.5 times, 0.6 times, 0.8 times, 1 time (the same), 1.5 times, 2 times, and the like of the area of the second diaphragm 202. In some embodiments, the area of the first diaphragm 201 and the area of the second diaphragm 202 may be designed to be the same.

Alternatively, in order to make the diaphragm of the loudspeaker 200 produce better dipole sound source effect, the center distance d between the first sound outlet hole 101 and the second sound outlet hole 102 may be designed not to be larger than 30 mm. The difference in sound amplitude generated within 30mm is less than 10%, and the larger the center distance d between the first sound outlet 101 and the second sound outlet 102, the less effective the generated dipole sound source, and thus the less privacy. The specific value of the center distance d between the first sound outlet hole 101 and the second sound outlet hole 102 may be 30mm, 28mm, 25mm, 20mm, 15mm, 10mm, and the like, which is not limited herein.

Referring to fig. 5, fig. 5 is a schematic partial structure diagram of the electronic device in the embodiment of fig. 1, where the center of the sound outlet in this embodiment refers to a geometric center of the sound outlet, and is not limited to a specific shape and number of the sound outlet, for example, in this embodiment, the first sound outlet 101 is a strip-shaped structure, and the center thereof should be a position marked with 101a in the drawing, and the second sound outlet 102 may be composed of a plurality of small holes, and then the center thereof should be a geometric center composed of a plurality of small holes, that is, a position marked with 102a in the drawing. That is, the distance between 101a and 102a is the center distance d of the first sound outlet hole 101 and the second sound outlet hole 102 (see fig. 4 and 5 in combination).

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

The electronic equipment that this application embodiment provided can control dual diaphragm speaker and send the sound that vibration amplitude is the same and the opposite phase through two independent vocal cords, and then forms the dipole sound source, produces the superposition of antiphase sound field in electronic equipment's far field department, reduces sound loudness and definition to make other people of electronic equipment far field department can't hear clearly conversation sound, realize the privacy of conversation. In the application scene of external power amplifier, two phonate holes send out the sound that the phase place is the same, form same phase sound field stack, reinforcing sound loudness realizes the promotion of electronic equipment external playback effect.

Referring to fig. 6, fig. 6 is a schematic partial cross-sectional view of an electronic device according to another embodiment of the present application, and the electronic device 10 in this embodiment may also include a housing 100 and a speaker 200. Loudspeaker 200 is double-diaphragm loudspeaker equally, and loudspeaker 200's the both sides of carrying on the back mutually are equipped with first vibrating diaphragm 201 and second vibrating diaphragm 202 respectively, first vibrating diaphragm 201 with second vibrating diaphragm 202 can be driven and send the sound that vibration amplitude is the same and opposite phase place, and then form dipole sound source.

The interior of the housing 100 is also provided with a first sound outlet channel 1100 and a second sound outlet channel 1200 respectively communicated with the first diaphragm 201 and the second diaphragm 202, and the surface of the housing 100 is provided with a first sound outlet hole 101 and a second sound outlet hole 102 respectively communicated with the first sound outlet channel 1100 and the second sound outlet channel 1200. The housing 100 includes a first surface 110, a second surface 120, and a side 130; the first surface 110 and the second surface 120 are opposite to each other, and the side surface 130 is connected to the first surface 110 and the second surface 120, respectively.

The angle a1 between the direction X1 of the first sound outlet 101 and the direction perpendicular to the first surface 110 (the direction of arrow Z1 in fig. 6) is less than 45 degrees, wherein the first sound outlet 101 may be disposed on the first surface 110 or at the angle between the first surface 110 and the side 130 (the top side) (shown in fig. 6). The sound output from the first sound output hole 101 is mainly used for an application scene with high privacy requirements, such as a call, which requires a small sound.

Unlike the previous embodiment, the angle a2 between the direction X2 of the second sound outlet 102 and the direction perpendicular to the second surface 120 (direction of arrow Z2 in fig. 6) is less than 45 degrees in the present embodiment. The second sound outlet hole 102 may be disposed on the second surface 120 or at a corner between the second surface 120 and the side surface 130 (top side surface) (shown in fig. 6). There are mainly two application scenarios for the sound output of the second sound outlet 102. In a privacy scene, the sound of the second sound outlet 102 is matched with the sound of the first sound outlet 101 to generate sounds with the same vibration amplitude and opposite phases, so that a dipole sound source is formed, so that an anti-phase sound field superposition is generated at a far field of the electronic equipment, the loudness and the definition of the sound are reduced, other people at the far field of the electronic equipment cannot hear the call sound, and the privacy of the call is realized. In an application scene of an external power amplifier, the sound of the second sound outlet 102 and the sound of the first sound outlet 101 generate sound with the same phase, so that the same-phase sound field superposition is formed, the sound loudness is enhanced, and the external playing effect of the electronic equipment is improved.

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

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

Optionally, with reference to fig. 6, the area of the first diaphragm 201 in this embodiment is 0.5-2 times the area of the second diaphragm 202, and specifically, the area of the first diaphragm 201 may be 0.5 times, 0.6 times, 0.8 times, 1 time (the same), 1.5 times, 2 times, and the like of the area of the second diaphragm 202. In some embodiments, the area of the first diaphragm 201 and the area of the second diaphragm 202 may be designed to be the same.

Alternatively, in order to make the diaphragm of the loudspeaker 200 generate better dipole sound source effect, the center distance d between the first sound outlet hole 101 and the second sound outlet hole 102 may be designed not to be larger than 30 mm. The difference in sound amplitude generated within 30mm is less than 10%, and the larger the center distance d between the first sound outlet 101 and the second sound outlet 102, the less effective the generated dipole sound source, and thus the less privacy. The specific value of the center distance d between the first sound outlet 101 and the second sound outlet 102 may be 30mm, 28mm, 25mm, 20mm, 15mm, 10mm, and the like, and is not limited herein. In addition, the definition of the centers of the first sound outlet 101 and the second sound outlet 102 can refer to the description of the foregoing embodiments, and will not be described herein again.

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

Referring to fig. 7, fig. 7 is a block diagram illustrating a structural composition of an embodiment of an electronic device according to the present application, where the electronic device may be an electronic device with a speaker, such as a mobile phone, a tablet computer, a notebook computer, and a wearable device, and the embodiment takes a mobile phone as an example. The electronic device may have a structure including an RF circuit 910, a memory 920, an input unit 930, a display unit 940, a sensor 950, an audio circuit 960, a wifi module 970, a processor 980, a power supply 990, and the like. Wherein the RF circuit 910, the memory 920, the input unit 930, the display unit 940, the sensor 950, the audio circuit 960, and the wifi module 970 are respectively connected with the processor 980; power supply 990 is operable to provide power to the entire electronic device 10.

Specifically, the RF circuit 910 is used for transmitting and receiving signals; the memory 920 is used for storing data instruction information; the input unit 930 is used for inputting information, and may specifically include a touch panel 931 and other input devices 932 such as operation keys; the display unit 940 may include a display panel 941; the sensor 950 includes an infrared sensor, a laser sensor, etc. for detecting a user approach signal, a distance signal, etc.; a speaker 961 (which may be the dual diaphragm speaker 200 of the previous embodiment) and a microphone 962 are connected to the processor 980 through an audio circuit 960 for receiving and transmitting sound signals; the wifi module 970 is used for receiving and transmitting wifi signals, and the processor 980 is used for processing data information of the electronic device. For specific structural features of the electronic device, please refer to the related description of the above embodiments, and detailed descriptions thereof will not be provided herein.

The electronic equipment that this application embodiment provided can control double-diaphragm speaker and send the sound that vibration amplitude is the same and the opposite phase through two independent vocal passageways, and then form the dipole sound source, produces the superposition of anti-phase sound field in electronic equipment's far field department, reduces sound loudness and definition to make other people of electronic equipment far field department can't listen clearly to conversation sound, realize the privacy of conversation. In the application scene of external power amplifier, two phonate holes send out the sound that the phase place is the same, form same phase sound field stack, reinforcing sound loudness realizes the promotion of electronic equipment external playback effect.

The above description is only a part of the embodiments of the present invention, and not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes performed by the present invention through the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An electronic device, characterized in that the electronic device comprises a housing and a speaker; the first vibrating diaphragm and the second vibrating diaphragm are respectively arranged on two opposite sides of the loudspeaker, and can be driven to emit sounds with the same vibration amplitude and opposite phases, so that a dipole sound source is formed; the inside of casing be equipped with respectively with first vibrating diaphragm and the first sound channel of going out of second vibrating diaphragm intercommunication and second sound channel, the surface of casing be equipped with respectively with first sound channel and the first sound hole and the second sound hole of going out of sound channel intercommunication.

2. The electronic device of claim 1, wherein the housing comprises a first surface, a second surface, and a side; the first surface and the second surface are arranged oppositely, and the side surfaces are respectively connected with the first surface and the second surface; the included angle between the orientation of the first sound outlet and the direction perpendicular to the first surface is smaller than 45 degrees, and the second sound outlet is arranged on the side face.

3. The electronic device of claim 1, wherein the housing comprises a first surface, a second surface, and a side; the first surface and the second surface are arranged oppositely, and the side surfaces are respectively connected with the first surface and the second surface; the included angle between the orientation of the first sound outlet and the direction perpendicular to the first surface is smaller than 45 degrees, and the included angle between the orientation of the second sound outlet and the direction perpendicular to the second surface is smaller than 45 degrees.

4. The electronic device of claim 1, wherein the volume of the first sound-emitting channel is 0.5-2 times the volume of the second sound-emitting channel.

5. The electronic device of claim 1, wherein the length of the first sound-emitting channel is 0.5-2 times the length of the second sound-emitting channel.

6. The electronic device of claim 1, wherein the first sound-emitting channel and the second sound-emitting channel are the same in volume and length.

7. The electronic device according to claim 1, wherein the area of the first sound outlet hole is 0.5-2 times the area of the second sound outlet hole.

8. The electronic device according to claim 7, wherein an area of the first sound outlet hole and an area of the second sound outlet hole are the same.

9. The electronic device according to claim 1, wherein a center distance between the first sound outlet hole and the second sound outlet hole is not more than 30 mm.

10. The electronic device of claim 1, wherein an area of the first diaphragm is 0.5-2 times an area of the second diaphragm.