CN216700051U - Electronic device - Google Patents

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 equipment

technical field

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

Background technique

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

Utility model content

An embodiment of the present application provides an electronic device, the electronic device includes a housing and a speaker; a first diaphragm and a second diaphragm are respectively provided on opposite sides of the speaker, and the first diaphragm and the speaker are respectively provided with a first diaphragm and a second diaphragm. The second diaphragm can be driven to emit sounds with the same vibration amplitude and opposite phases, thereby forming a dipole sound source; a first sound outlet channel and a second sound outlet channel, the surface of the casing 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 device provided by the embodiment of the present application controls the dual-diaphragm loudspeaker to emit sounds with the same vibration amplitude and opposite phases through two independent sound output channels, thereby forming a dipole sound source and generating opposite phases at the far field of the electronic device The sound field is superimposed to reduce the loudness and clarity of the sound, so that other people in the far field of the electronic device cannot hear the voice of the call clearly and realize the privacy of the call.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

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

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

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

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

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

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

FIG. 7 is a schematic block diagram of the structure and composition of an embodiment of an electronic device of the present application.

Detailed ways

The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is particularly pointed out that the following examples are only used to illustrate the present invention, but do not limit the scope of the present invention. Similarly, the following embodiments are only some but not all embodiments of the present invention, and all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention .

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

"Electronic equipment" (or simply "terminal") as used herein includes, but is not limited to, is configured to be connected via a wired line (eg, via a public switched telephone network (PSTN), digital subscriber line (DSL), digital cable, Direct cable connection, and/or another data connection/network) and/or via (eg, for cellular networks, wireless local area networks (WLAN), digital television networks such as DVB-H networks, satellite networks, AM-FM broadcast transmitters , and/or another communication terminal's) wireless interface to receive/send communication signals. A communication terminal arranged to communicate through a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communication System (PCS) terminals that may combine cellular radio telephones with data processing, fax, and data communication capabilities; may include radio telephones, pagers, Internet/Intranet access , a PDA with a web browser, memo pad, calendar, and/or a global positioning system (GPS) receiver; and conventional laptop and/or palm receivers or other electronic devices including radiotelephone transceivers. A mobile phone is an electronic device equipped with a cellular communication module.

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

Specifically, please refer to FIG. 4. FIG. 4 is a schematic cross-sectional view of the structure of the electronic device at A-A in the embodiment of FIG. 1. Optionally, the speaker 200 in this embodiment is a dual-diaphragm speaker, and the speaker 200 A first diaphragm 201 and a second diaphragm 202 are respectively provided on the opposite sides of the diaphragm. The first diaphragm 201 and the second diaphragm 202 can be driven to emit sounds with the same vibration amplitude and opposite phases, thereby forming Dipole sound source. A dipole sound source refers to two very close sound source points S+ and S-, their vibration amplitudes are the same, but the phases are opposite, and a synthetic sound source composed of such two point sound sources.

Please continue to refer to FIG. 4 , in this embodiment, a first sound outlet channel 1100 and a second sound outlet channel 1200 are arranged inside the casing 100 which are respectively communicated with the first diaphragm 201 and the second diaphragm 202 . The surface of the casing 100 is provided with a first sound outlet hole 101 and a second sound outlet hole 102 communicating with the first sound outlet channel 1100 and the second sound outlet channel 1200 , respectively.

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

Please continue to refer to FIG. 4 , the angle a1 between the direction X1 of the first sound outlet hole 101 in this embodiment 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 included angle between the first surface 110 and the side surface 130 (top side surface) (shown in FIG. 4 ). The sound output of the first sound output hole 101 is mainly used for application scenarios with high privacy requirements, such as calls, which need to be whispered.

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

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

Optionally, the area of the first sound outlet hole 101 is 0.5-2 times the area of the second sound outlet hole 102 , specifically, the area of the first sound outlet hole 101 is the same as the second sound outlet hole 102 . 0.5 times, 0.6 times, 0.8 times, 1 times (same), 1.5 times, 2 times, etc. of the area of 102 . In some embodiments, it can be designed that the area of the first sound outlet 101 and the area of the second sound outlet 102 are the same. It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relationship between the various components under a certain posture (as shown in the drawings). If the specific posture changes, the directional indication also changes accordingly.

Optionally, please continue to refer to FIG. 4 . In this embodiment, the area of the first diaphragm 201 is 0.5-2 times the area of the second diaphragm 202 . Specifically, the area of the first diaphragm 201 may be 0.5-2 times the area of the second diaphragm 201 . 0.5 times, 0.6 times, 0.8 times, 1 times (same), 1.5 times, 2 times, etc. of the area of the film 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.

Optionally, in order to make the diaphragm of the speaker 200 produce a better dipole sound source effect, the center distance d between the first sound outlet 101 and the second sound outlet 102 may be designed to be no greater than 30 mm. The difference in sound amplitude within 30mm is less than 10%. The larger the center distance d between the first sound hole 101 and the second sound hole 102, the worse the dipole sound source effect and the worse the 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, and 10mm, which is not specifically limited here.

Please refer to FIG. 5 together. FIG. 5 is a schematic diagram of a partial structure of the electronic device in the embodiment of FIG. 1 . The center of the sound-outlet hole in this embodiment refers to the geometric center of the sound-outlet hole, and is not limited to the sound-outlet hole. For example, the first sound outlet 101 in this embodiment is a strip structure, the center of which should be the position marked 101a in the figure, and the second sound outlet 102 may be composed of a plurality of small holes , then its center should be the geometric center composed of a plurality of small holes, that is, the position marked 102a in the figure. That is, the distance between 101a and 102a is the center distance d between the first sound outlet hole 101 and the second sound outlet hole 102 (refer to FIG. 4 and FIG. 5 in conjunction).

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

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

Please refer to FIG. 6 . FIG. 6 is a schematic cross-sectional view of a partial structure of another embodiment of the electronic device of the present application. The electronic device 10 in this embodiment may also include a casing 100 and a speaker 200 . The speaker 200 is also a dual-diaphragm speaker. The opposite sides of the speaker 200 are respectively provided with a first diaphragm 201 and a second diaphragm 202. The first diaphragm 201 and the second diaphragm 202 can be driven to emit Sounds that vibrate with the same amplitude and opposite phases form a dipole sound source.

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

The angle a1 between the direction X1 of the first sound outlet 101 in this embodiment and the direction perpendicular to the first surface 110 (the direction of the 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 an included angle between the first surface 110 and the side 130 (top side) (shown in FIG. 6 ). The sound output of the first sound output hole 101 is mainly used for application scenarios with high privacy requirements, such as calls, which need to be whispered.

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

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

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

Optionally, please continue to refer to FIG. 6 . In this embodiment, the area of the first diaphragm 201 is 0.5-2 times the area of the second diaphragm 202 . Specifically, the area of the first diaphragm 201 may be 0.5-2 times the area of the second diaphragm 201 . 0.5 times, 0.6 times, 0.8 times, 1 times (same), 1.5 times, 2 times, etc. of the area of the film 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.

Optionally, in order to make the diaphragm of the speaker 200 produce a better dipole sound source effect, the center distance d between the first sound outlet 101 and the second sound outlet 102 may be designed to be no greater than 30 mm. The difference in sound amplitude within 30mm is less than 10%. The larger the center distance d between the first sound hole 101 and the second sound hole 102, the worse the dipole sound source effect and the worse the 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, and 10mm, which is not specifically limited here. In addition, the definition method of the center of the first sound outlet hole 101 and the second sound outlet hole 102 can refer to the description of the foregoing embodiment, which will not be repeated here.

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

Please refer to FIG. 7. FIG. 7 is a schematic block diagram of the structure of an embodiment of an electronic device of the present application. 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. In this embodiment, a mobile phone is used. For example. The structure of the electronic device may include an RF circuit 910, a memory 920, an input unit 930, a display unit 940, a sensor 950, an audio circuit 960, a wifi module 970, a processor 980, a power supply 990, and the like. 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 to the processor 980 ;

Specifically, the RF circuit 910 is used to send and receive signals; the memory 920 is used to store data instruction information; the input unit 930 is used to input information, which may specifically include a touch panel 931 and other input devices 932 such as operation keys; the display unit 940 is used for The sensor 950 may include a display panel 941, etc.; the sensor 950 includes an infrared sensor, a laser sensor, etc., for detecting user proximity signals, distance signals, etc.; a speaker 961 (which may be the dual-diaphragm speaker 200 in the foregoing embodiment) and a microphone (or microphone) The 962 is connected to the processor 980 through the audio circuit 960 for sending and receiving sound signals; the wifi module 970 is used for receiving and transmitting wifi signals, and the processor 980 is used for processing the data information of the electronic device. For the specific structural features of the electronic device, please refer to the relevant description of the above-mentioned embodiments, which will not be described in detail here.

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

The above are only some embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Any equivalent device or equivalent process transformation made by using the contents of the description and accompanying drawings of the present invention, or directly or indirectly used in Other related technical fields are similarly included in the scope of patent protection of the present invention.

Claims (10)

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.

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