CN111835898A - Electronic equipment - Google Patents

Abstract

The present application relates to an electronic device, including a casing, a receiver and a display screen. The shell has an inner cavity, the receiver is arranged in the inner cavity, and the inner cavity includes a front sound cavity and a rear sound cavity respectively located on opposite sides of the receiver. The display screen is covered on the casing, and the edge of the display screen is connected with the casing; a sound outlet is arranged between the edge of the display screen and the casing, and the sound outlet communicates with the front sound cavity. The shell is provided with a phase reversal hole, and the phase reversal hole is communicated with the rear sound cavity. In the above electronic device, the position of the sound outlet does not need to occupy the installation space or the display space of the display screen, which is beneficial to increase the screen ratio. The sound waves transmitted through the rear sound cavity and the phase reversal hole are used to cancel each other out with the sound waves transmitted through the sound outlet, so as to reduce the loudness of the sound from the receiver outside the range of the user's auricle, which improves the user's use of electronic equipment. voice privacy.

Description

Electronic equipment

technical field

The present application relates to the technical field of consumer electronic devices, and in particular, to an electronic device with a receiver.

Background technique

With the continuous development of electronic technology, electronic devices such as smart phones or tablet computers have become commonly used electronic devices by users. Current electronic devices are usually equipped with a receiver and an adapted sound hole, so as to allow users to conveniently place their ears close to the sound hole to answer calls. Even if people cover their ears at the sound outlet, the sound signal from the receiver will still leak to the outside world. For example, when the user answers the phone in a quiet environment, the leaked sound signal can easily be heard by the people next to him, thereby causing private information of leakage.

SUMMARY OF THE INVENTION

The embodiments of the present application provide an electronic device with a relatively large screen ratio.

Embodiments of the present application provide an electronic device, including a casing, a receiver, and a display screen. The shell has an inner cavity, the receiver is arranged in the inner cavity, and the inner cavity includes a front sound cavity and a rear sound cavity respectively located on opposite sides of the receiver. The display screen is covered on the casing, and the edge of the display screen is connected with the casing; a sound outlet is arranged between the edge of the display screen and the casing, and the sound outlet communicates with the front sound cavity. The shell is provided with a phase reversal hole, and the phase reversal hole is communicated with the rear sound cavity.

In the electronic device provided by the embodiment of the present application, the receiver is arranged in the inner cavity of the electronic device, the sound outlet is arranged between the edge of the display screen and the casing, and the position of the sound outlet does not need to occupy the installation space of the display screen or the display space, which is conducive to freeing up more installation space for the display panel of the display screen, so that the electronic device has a higher screen ratio under the premise of the same external size, which is conducive to the realization of a full-screen display of the electronic device. Further, in the embodiment of the present application, the casing is also provided with a phase reversal hole that communicates with the rear sound cavity, and the sound wave transmitted through the rear sound cavity and the phase reversal hole is used to interact with the sound wave transmitted through the sound outlet. Cancellation, so that the loudness of the sound from the receiver outside the range of the user's auricle is reduced, preventing other people around the user from hearing the sound of the receiver, and improving the voice privacy of the user using the electronic device.

Description of drawings

In order to illustrate the technical solutions of the present application more clearly, the following briefly introduces the accompanying drawings used in the implementation manner. Obviously, the accompanying drawings in the following description are only some implementations of the present application, which are common in the art. As far as technical personnel are concerned, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic perspective view of an electronic device provided by an embodiment of the present application.

FIG. 2 is a partial schematic diagram of a cross-section of an electronic device provided by an embodiment of the present application.

FIG. 3 is a partial three-dimensional cross-sectional schematic diagram according to an embodiment of the present application.

FIG. 4 is a schematic diagram of a cross-section of the electronic device shown in FIG. 3 .

FIG. 5 is a partial schematic diagram of a cross-section of an electronic device provided by another embodiment of the present application.

FIG. 6 is a partial schematic diagram of a cross-section of an electronic device provided by another embodiment of the present application.

FIG. 7 is a partial schematic diagram of a cross-section of an electronic device provided by yet another embodiment of the present application.

FIG. 8 is a schematic diagram of a hardware environment of an electronic device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

"Electronic equipment" as used in the embodiments of this application includes, but is not limited to, is configured to connect 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 A device for receiving/transmitting communication signals through a wireless interface of another communication terminal. A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal" and/or a "mobile terminal". Examples of electronic devices 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.

Today's electronic devices integrate more and more functions, including taking pictures, video chatting, fingerprint recognition, etc. Although the functions of electronic devices are constantly being updated, their performance is improving, and their appearance is becoming more and more refined, calling is always its most basic and most important function. The current electronic device is usually provided with a sound outlet corresponding to the receiver on the front side of its casing (eg, a display screen or a front casing), so as to allow users to conveniently place their ears close to the sound outlet to answer the phone.

When answering a call in a normal posture, it is difficult for the user's ear to completely cover the sound hole, so that the sound emitted by the sound hole diffuses to the outside of the user's ear. When the external environment is relatively quiet, the sound from the sound outlet is easily heard by others, thereby causing privacy leakage. In view of this, the inventor of the present application has concentrated on research to seek a sound hole solution with better privacy. The research of the inventor of the present application includes but is not limited to including: the effect of the equivalent sound output cross section of the sound hole on the degree of sound leakage Factors such as the improvement effect of the sound hole on the electronic device, the improvement effect of the sound hole on the sound leakage degree, the relative position of the sound hole and the receiver on the sound leakage degree, the specific structure of the sound hole and the opening direction and other factors Improvement effect on the degree of sound leakage. After a lot of and repeated research, the inventor came up with a design idea: reduce the loudness of the sound outside the range of the human ear, so that other areas cannot hear the sound from the sound hole, or increase the noise of the sound outside the range of the human ear. Distortion, so that people in other areas cannot hear the sound from the sound hole, which can achieve the purpose of protecting user privacy.

Under the guidance of this design idea, the inventor proposes a solution of the electronic device of the present application, and the electronic device includes a casing, a receiver and a display screen. The shell has an inner cavity, the receiver is arranged in the inner cavity, and the inner cavity includes a front sound cavity and a rear sound cavity respectively located on opposite sides of the receiver. The display screen is covered on the casing, and the edge of the display screen is connected with the casing; a sound outlet is arranged between the edge of the display screen and the casing, and the sound outlet communicates with the front sound cavity. The shell is provided with a phase reversal hole, and the phase reversal hole is communicated with the rear sound cavity. Therefore, the sound waves transmitted through the rear sound cavity and the reversing hole can cancel each other out with the sound waves transmitted through the sound outlet, so that the loudness of the sound transmitted from the receiver outside the user's auricle is reduced, avoiding other noises around the user. People can hear the voice of the receiver, which improves the privacy of the user's voice when using the electronic device. The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.

Referring to FIG. 1 , an embodiment of the present application provides an electronic device 100 . The electronic device 100 may be, but is not limited to, an electronic device such as a mobile phone, a tablet computer, and a smart watch. The electronic device 100 of the present embodiment will be described by taking a mobile phone as an example. The electronic device 100 includes a casing 10 , a display screen 30 disposed on the casing 10 , and a receiver 50 disposed in the casing 10 .

Referring to FIG. 2 , in the embodiment of the present application, the casing 10 is used for installing the display screen 30 and for accommodating the electronic components of the electronic device 100 , and the specific structural form of the casing 10 is not limited. The housing 10 has an inner cavity 1010 , and the receiver 50 is disposed in the inner cavity 1010 . Based on the receiver 50 , the inner cavity 1010 of the housing 10 is roughly divided into a front sound cavity 1011 and a rear sound cavity 1013 , in other words, the inner cavity 1010 of the housing 10 includes front sound cavities located on opposite sides of the receiver 50 , respectively. 1011 and rear cavity 1013. The display screen 30 is covered on the casing 10 , and the edge of the display screen 30 is connected to the casing 10 . A sound outlet 301 is provided between the edge of the display screen 30 and the casing 10 , and the sound outlet 301 communicates with the front sound cavity 1011 . The casing 10 is provided with a phase reversal hole 11 , and the phase reversal hole 11 communicates with the rear sound cavity s1013 .

In the above electronic device 100, the receiver 50 is arranged in the inner cavity 1010 of the electronic device 100, the sound outlet 301 is arranged between the edge of the display screen 30 and the casing 10, and the position of the sound outlet 301 does not need to occupy the display screen The installation space or display space of 30 is conducive to freeing up more installation space for the display panel of the display screen 30, so that the electronic device 100 has a higher screen ratio under the premise of the same external size, which is beneficial to A full-screen display of the electronic device 100 is realized. Further, in the embodiment of the present application, the casing 10 is further provided with a phase reversal hole 11 that communicates with the rear sound cavity 1013 , and the sound waves transmitted through the rear sound cavity and the phase reversal hole 11 are used to communicate with each other via the sound outlet 301 The outgoing sound waves cancel each other out, so that the loudness of the sound outgoing from the receiver 50 outside the range of the user's auricle is reduced, preventing other people around the user from hearing the sound of the receiver 50, and improving the voice privacy of the user using the electronic device 100 .

Specifically, the receiver 50 is used to convert the audio electrical signal into a sound analog signal, so that the sound can be transmitted through the sound outlet 301 . It should be understood that the "receiver" in this application should be understood as an earpiece in the usual sense, that is, the above-mentioned receiver should be understood as: when there is no sound leakage (or a 3.2 type high/low leakage ring according to the ITU standard) An electro-acoustic device that converts audio electrical signals into sound signals under conditions to achieve audio (voice, music, etc.) playback. The receiver 50 of the embodiment of the present application may be a moving coil receiver, and the sound signal radiated by the receiver of this type relies on the diaphragm vibration to push the air to transmit sound, that is, the receiver 50 will simultaneously radiate sound signals to its front and back during the working process.

In this embodiment, the front sound signal is called the first sound signal A, which enters the human ear through the front sound cavity 1011 and the sound outlet 301, and the back sound signal is called the second sound signal B, which passes through the rear sound cavity 1013, the reverse sound The phase holes 11 propagate outward. Based on the characteristics of the receiver 50, the phases of the first sound signal A and the second sound signal B are opposite, and the amplitude of the second sound signal B is approximately less than or equal to the vibration amplitude of the first sound signal A. When the first sound signal A propagates to a person In the area X outside the ear, the second sound signal B can basically propagate to the area X at the same time, then the first sound signal A and the second sound signal B interfere with each other in the area X and superimpose to form the third sound signal C. Since the phases of the first sound signal A and the second sound signal B are opposite, the signal peaks of the two are weakened or even roughly canceled by the other, so the amplitude of the third sound signal C is very weak or almost disappears. The identification of the third signal C This reduces the intelligibility of the third signal C by other users in the area X. Therefore, the sound signal transmitted by the electronic device 100 to the area X is basically not heard by the human ears in the area X. It should be understood that the "area X" in the present application is only an exemplary description, which does not constitute a limitation on the solution of the present application. When a user listens to sound using the receiver 50 of the electronic device 100, the area around the user can be It is understood as the area X, for example, the area X may be an area outside the normal social range of the user (for example, an area outside the user's side 30 cm, 40 cm, 50 cm, etc.). Using the electronic device 100 provided by the embodiment of the present application, the loudness of the sound transmitted from the receiver 50 outside the range of the user's auricle can be reduced (in this case, it can be considered that the area outside the range of the user's auricle is understood as "area X" ) to prevent other people around the user from hearing the sound of the receiver 50 , thereby improving the privacy of the user's voice when using the electronic device 100 .

In this embodiment, the display screen 30 may include a display panel, and may also include a circuit or the like for responding to a touch operation on the display panel. The display panel may be a liquid crystal display panel (Liquid Crystal Display, LCD), or may be an active-matrix organic light-emitting diode (Active-matrix organic light-emitting diode, AMOLED) display panel. As a self-luminous display, the AMOLED display does not need a backlight module (BLM). Therefore, when the base substrate in the AMOLED display screen is made of a flexible resin material, such as polyethylene terephthalate (Polyethylene Terephthalate, PET), the above-mentioned AMOLED display screen can have the characteristic of being bendable. In other embodiments, the display screen 30 may also be an organic light-emitting semiconductor (Organic Light-Emitting Diode, OLED) display panel.

Referring to FIG. 3 , in this embodiment, the display screen 30 includes a flat display portion 32 and a curved display portion 34 . The curved display part 34 is connected to at least one edge of the flat display part 32 and is curved relative to the flat display part 32 , so that the display screen 30 has a curved edge, so the smoothness of the structure of the electronic device 200 can be improved. In the embodiment of the present application, the curved display portion 34 may be connected to one edge, two edges, or more than two edges of the flat display portion 32, which is not limited by this specification. For example, in this embodiment, the flat display portion 32 It is roughly rectangular and has four edges, and the curved display portion 34 can be connected to one or more of the four edges. The following embodiments are described by taking as an example that the curved display portion 34 is connected to one edge.

Specifically, in the embodiment of FIG. 3 , the curved display portion 34 is connected to the top edge of the flat display portion 32 . It should be noted that, in each embodiment of the present application, the types of electronic devices are not limited, and the more common placement modes of electronic devices in use are used as reference placement modes, and the side facing the user is the "front side" or the "front side". ”, the side facing away from the user is the “back side”, the “top” refers to the part close to the upper edge of the electronic device, and the “bottom” refers to the part close to the bottom edge of the electronic device. It should be understood that the above-mentioned names of the flat display portion and the curved display portion are only provided for the convenience of description, and are not used as a structural limitation of the display screen 30. In actual application scenarios, the flat display portion and the curved display portion may not be obvious. boundaries.

The curved display portion 34 is connected to the casing 10, and the sound outlet 301 is located between the curved display portion 34 and the casing 10, so that the outlet of the sound outlet 301 faces the obliquely upward direction of the electronic device 100 (which can be understood as being deviated from the front or Deviation from the top), it is beneficial to be close to the user's auricle to conduct sound signals and avoid offset sound leakage. While taking into account the convenience of use, it avoids occupying the display area on the front of the display screen 30, which is conducive to improving the electronic device 100. screen ratio. Further, a side of the curved display portion 34 away from the flat display portion 32 is provided with a notch 341 , and the notch 341 is used to cooperate with the casing 10 to form a sound outlet 301 . When the display screen 30 is assembled to the casing 10, the edge portion of the curved display portion 34 except the notch 341 is in contact with the casing 10, and the edge portion of the notch 341 is spaced from the casing 10, and the sound outlet 301 is formed in at this interval. In this embodiment, the sound outlet 301 formed by the notch 341 is roughly in the shape of a slit, which can weaken its presence in structure, and is beneficial to ensure the overall and consistency of the appearance of the electronic device 100 . In other embodiments, the shape of the sound outlet 301 may be a single hole or a plurality of holes, and the shape of the hole may be a circular hole, a square hole, or the like, which is not limited in this embodiment of the present application.

Referring to FIG. 4 , in some embodiments, the casing 10 may include a middle frame 12 and a rear casing 14 . The display screen 30 is generally covered on one side of the middle frame 12 , and the rear case 14 is arranged on the side of the middle frame 12 away from the display screen 30 .

The middle frame 12 includes a frame portion 121 and a middle frame plate 123 connected to the frame portion 121 .

In this embodiment, the frame portion 121 is substantially a rectangular frame with rounded corners, which is used to constitute the frame of the electronic device 100 . In some embodiments, the material of the frame portion 121 may include, but is not limited to, any one or a combination of metal, plastic, resin, and rubber. It should be understood that the frame of the electronic device 100 refers to the side portion of the electronic device 100 along the thickness direction, between the frame and the rear case (such as the rear case 14 ) and the front surface (such as the display screen 30 ) of the electronic device 100 Together, the appearance of the electronic device 100 is formed. The frame of the electronic device 100 may be an integral structure with the front side surface, or may be an integral structure with the rear shell of the electronic device 100 , or may be an independent frame, the specific structure of which is not limited herein. In the embodiment shown in FIG. 4 , the frame portion 121 is assembled with the rear case 14 and the display screen 30 .

Referring to FIG. 1 again, in this embodiment, the frame portion 121 includes two first frames 124 and two second frames 125 . In this embodiment, the two first frames 124 are substantially parallel to each other, and the two second frames 125 are substantially parallel to each other. Two ends of each second frame 125 are respectively connected with the two first frames 124 , so that the frame portion 121 is substantially rectangular. In the embodiment shown in the figure, the length of the first frame 124 is shorter than that of the second frame 125 , so that the two first frames 124 are used as the top frame and the bottom frame of the electronic device 100 respectively, and the two second frames 125 are respectively used as the top frame and the bottom frame of the electronic device 100 . The left side frame and the right side frame of the electronic device 100 . The above-mentioned "left side frame" should be understood as the frame to which the user's left hand approaches when the user is using the electronic device 100 and the display screen 30 is in a portrait state and faces the front of the user; similarly, the above-mentioned "right side frame" should be understood as It is the frame to which the user's right hand approaches when the user uses the electronic device 100 and the display screen 30 faces the front of the user in a vertical screen state. It should be understood that the terms "first" and "second" in this specification are only used for description purposes, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature.

In this embodiment, a sound outlet 301 is formed between the first frame 124 and the curved display portion 34 to allow the sound of the receiver 50 in the electronic device 100 to leak from the top of the electronic device 100, which is more suitable for the user's usage habits. In order to allow the user to conveniently move the electronic device 100 to the ear to listen to the audio without readjusting the holding posture. In other embodiments, the setting position of the sound outlet 301 is not limited. For example, the sound outlet 301 may be disposed adjacent to any suitable position on the first frame 124 , or may be disposed between the second frame 125 and the display screen 30 . Further, in some embodiments, the sound outlet 301 is provided with a dust-proof net or a waterproof sound-permeable membrane, and the dust-proof net or the waterproof sound-permeable membrane is used to prevent particles such as dust and liquid from entering the interior of the electronic device 100 and communicating with the receiver. 50 is damaged, which further ensures the reliability of the sound output of the receiver 50, and has the effect of beautifying the appearance.

Referring to FIG. 4 , in this embodiment, the middle frame plate 123 is used for mounting the printed circuit board, and the middle frame plate 123 is embedded in the frame portion 121 , so that the frame portion 121 is arranged around the middle frame plate 123 . When the middle frame plate 123 is installed in the frame portion 121 , the middle frame plate 123 is located between the display screen 30 and the rear case 14 . In this embodiment, the middle frame plate 123 and the frame portion 121 are integrally formed, and the two can be prepared from the same material through injection molding, die casting, or stamping and other processes. In other embodiments, the middle frame plate 123 and the frame portion 121 may be made of different materials, and the two may be formed by mechanical assembly.

The middle frame plate 123 includes a first surface 1231 and a second surface 1233 facing away from each other. The first surface 1231 faces the rear case 14 and the second surface 123 faces the display screen 30 . The first surface 1231 is used to mount the receiver 50 . Further, the middle frame 12 is provided with a sound guide channel 1234, the sound guide channel 1234 penetrates the middle frame plate 123 and the frame portion 121, and communicates with the sound outlet 301 and the front sound cavity 1011 of the receiver 50, so as to allow the sound signal of the receiver 50 to be able to It is transmitted through the sound guide channel 1234 and the sound outlet 301 . In other embodiments, the sound guide channel 1234 may only penetrate the middle frame plate 123 , and the display screen 30 and the edge of the frame portion 121 are connected to form the sound outlet 301 , and the sound guide channel 1234 may utilize the space of the inner cavity 1010 It communicates with the sound outlet 301 .

The receiver 50 is disposed on the side of the middle frame plate 123 facing the rear case 14 , and the diaphragm side of the receiver 50 faces the sound guide channel 1234 . Further, in this embodiment, in order to fix the receiver 50 and make its installation structure compact, the middle frame plate 123 defines a mounting groove 1235 on the first surface 1231 , and the receiver 50 is fixed in the mounting groove 1235 . The sound guide channel 1234 runs through the bottom of the installation groove 1235 to form a certain space on the side of the diaphragm of the receiver 50 as the front sound cavity 1011, thereby ensuring that the receiver 50 has a larger front sound cavity and better sound quality. When the receiver 50 is disposed in the installation groove 1235, the surface of the side of the receiver 50 facing away from the diaphragm is concave relative to the first surface 1231, that is, the receiver 50 is substantially completely accommodated in the installation groove 1235, and the surface of the receiver 50 facing away from the diaphragm There is a certain vertical distance between one side and the first surface 1231 . The vertical distance ensures that after the receiver 50 is accommodated in the installation groove 1235 , there is still a surplus space for the back cavity 1013 of the receiver 50 , so that the receiver 50 has better low frequency performance. Further, the electronic device 100 further includes a first sealing member 52 , and the first sealing member 52 is disposed between the bottom wall of the installation groove 1235 and the receiver 50 . In this embodiment, the first sealing member 52 is a sealing ring, which substantially surrounds the outer circumference of the opening of the bottom wall of the sound guide channel 1234 passing through the bottom wall of the installation groove 1235 (that is, surrounds the outer circumference of the front sound cavity 1011 ), so as to realize the front The isolation between the sound cavity 1011 and the rear sound cavity 1013 prevents the sound signals on the front and rear sides of the receiver 50 from being mixed, and ensures that the receiver 50 has good sound quality.

In this embodiment, in order to effectively accommodate the receiver 50, the installation groove 1235 can be designed as a stepped groove structure. Specifically, the installation groove 1235 of the middle frame plate 123 includes at least a first groove portion 1236 and a second groove portion 1237 that communicate with each other. The first groove portion 1236 is disposed between the second groove portion 1237 and the sound guide channel 1234. The bottom wall of a groove portion 1236 is used to carry the first sealing member 52 and the receiver 50 , and is penetrated by the sound conduction 1234 , and the second groove portion 1237 penetrates the first surface 1231 . Taking the plane substantially parallel to the middle frame plate 123 as the cross-section, the cross-sectional area of the first groove portion 1236 is smaller than the cross-sectional area of the second groove portion 1237 , so that the mounting groove 1235 is roughly in the shape of a stepped groove, which facilitates the positioning of the receiver 50 Install. In this embodiment, a step portion 1238 is formed between the first groove portion 1236 and the second groove portion 1237 , and the direction of the step portion 1238 is consistent with the direction of the first surface 1231 . The receiver 50 is substantially completely accommodated in the first groove portion 1236 , and the surface of the receiver 50 facing away from the diaphragm is recessed relative to the stepped portion 1238 , so that the rear sound cavity 1013 is substantially formed in the first groove portion 1236 .

Further, in order to ensure the airtightness of the rear sound cavity 1013, the electronic device 100 further includes a second sealing member 54 for sealing the rear sound cavity 1013, and the second sealing member 54 is disposed between the middle frame plate 123 and the rear shell 14, It is used to seal the rear sound cavity 1013 except for the area connected to the inverted hole 11, so as to ensure that the sound waves in the rear sound cavity 1013 can vibrate and leak to the outside through the inverted hole 11 approximately uniquely, thereby ensuring the second sound signal B. The amplitude and phase have high fidelity, so the first sound signal B can be effectively canceled in the region X to avoid leakage of the speech signal. Further, in this embodiment, the second sealing member 54 can be made of elastic material, for example, adhesive colloid (such as double-sided tape, foam glue, glue, etc.), foam, silicone, rubber, etc., to Ensure that it has a good sealing effect.

In the embodiment shown in FIG. 4 , the second sealing member 54 is substantially in the shape of a plate, which covers the installation groove 1235 and substantially seals the circumferential direction of the installation groove 1235 . The second sealing member 54 is provided with a sound guide hole 541 , and the sound guide hole 541 communicates the rear sound cavity 1013 with the phase reversal hole 11 . Further, the second sealing member 54 is accommodated in the second groove portion 1237 and is stacked on the step portion 1238. The second sealing member 54 occupies a part of the space of the installation groove 1235 and can reduce the rear sound cavity 1013 to a certain extent. , to ensure that the sound waves in the rear sound cavity 1013 can vibrate and leak to the outside through the phase reversal hole 11 approximately exclusively.

Further, in this embodiment, the second sealing member 54 may include a sealing portion 543 and a sound guide tube 545 . The sealing portion 543 has a substantially plate shape and is stacked on the stepped portion 1238 . The sound guide tube 543 is disposed on the side of the seal portion 543 away from the step portion 1238 , and the end of the sound guide tube 545 away from the seal portion 543 is in contact with the housing 12 . The sound guide hole 541 of the second sealing member 54 penetrates through the seal portion 543 and the sound guide tube 545 , so as to communicate the rear sound cavity 1013 with the phase reversal hole 11 . In this embodiment, the sound guide hole 541 and the phase reversing hole 11 are arranged approximately coaxially. In other embodiments, the axes of the sound guide hole 541 and the phase reversal hole 11 can be offset from each other, or the sound guide hole 541 is not limited to a straight hole, it can also be a curved hole, as long as it is ensured that the rear sound cavity 1013 and the The phase inversion hole 11 communicates with each other.

The shape of the sound guide hole 541 is not limited, and it can be a circular hole, a square hole, a triangular hole, a polygonal hole, a special-shaped hole, or the like. In this embodiment, the sound guide hole 541 may be a circular hole with a diameter ranging from 0.8 to 2 mm. For example, the diameter of the sound guide hole 541 may be 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm mm, 1.4mm, 1.5mm, 1.8mm, 2.0mm, etc., or the diameter of the sound guide hole 541 may fall within the numerical range defined by any two numerical values above. When the shape of the sound guide hole 541 is a circle or a shape other than a circle, its size can be defined by its cross-sectional area. The cross-sectional area may be taken by a plane substantially parallel to the display surface of the electronic device 100 , and may also be referred to as a sound exit section or an equivalent sound exit section. The cross-sectional area of the sound guide hole 541 is in the range of 0.5 mm ² to 3 mm ² . For example, the cross-sectional area of the sound guide hole 541 may be 0.5mm ² , 0.8mm ² , 1.0mm ² , 1.2mm ² , 1.4mm ² , 1.5mm ² , 1.8mm ² , 2mm ² , 2.5mm ² , 2.8mm ² , 3 mm ² , etc., or the cross-sectional area of the sound guide hole 541 may fall within the numerical range defined by any two of the above numerical values. The length of the sound guide hole 541 along its axial direction ranges from 1.8mm to 4mm, for example, the length of the sound guide hole 541 can be 1.8mm, 1.9mm, 2.0mm, 2.1mm, 2.2mm, 2.5mm, 2.8mm, 3mm , 3.0mm, 3.1mm, 3.2mm, 3.5mm, 3.8mm, 4mm, etc., or, the length of the sound guide hole 541 may fall within the numerical range defined by any two of the above numerical values. In other embodiments, the range of the length of the sound guide hole 541 extending in the axial direction may be other values. For example, when the sound guide hole 541 is a hole with a curve, the length of the sound guide hole 541 may range from 3 mm to 3 mm. It should be understood that the extension length of the sound guide hole 541 is not limited by the description of the embodiment of the present application, as long as it can form the transmission of the second sound signal B. channel. In this embodiment, the sealing portion 543 and the sound guide tube 545 are integrally formed into a connecting structure, so as to simplify the molding and assembly of the second sealing member 54 . In other embodiments, the sealing portion 543 and the sound guide tube 545 may be assembled and formed, and the two may also be made of different materials, which are not limited by this specification.

In this embodiment, the rear case 14 is used as the rear case of the electronic device 100 and is generally referred to as a rear cover or a battery cover. The inverted hole 11 on the rear shell 14 is opened at a position corresponding to the sound guide hole 541 , and is arranged approximately coaxially with the sound guide hole 541 . Opening the inverting hole 11 in the rear casing 14 can make the inverting hole 11 roughly face the rear sound cavity, and the aperture of the inverting hole 11 is short, which is conducive to the direct transmission of the second sound signal B. At this time, the inverting The hole 11 is roughly facing the area that needs to be silenced (the area X outside the human ear), and the second sound signal B can be directly transmitted to the silenced area, which can ensure a better noise reduction effect. The shape of the inverted hole 11 is not limited, and it can be a circular hole, a square hole, a triangular hole, a polygonal hole, a special-shaped hole, or the like. In this embodiment, the phase inversion hole 11 may be a circular hole with a diameter ranging from 0.8 to 2 mm. For example, the diameter of the phase inversion hole 11 may be 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm mm, 1.4 mm, 1.5 mm, 1.8 mm, 2.0 mm, etc., or the diameter of the phase reversal hole 11 may fall within the numerical range defined by any two numerical values above. In this way, the size of the inverting hole 11 is limited to not be too large, so as to prevent too much second sound signal B from being transmitted through the rear sound cavity 1013 but leaking audio and affecting the canceling effect of the first sound signal A.

When the shape of the inverted hole 11 is a circle or a shape other than a circle, its size can be defined by its cross-sectional area. The cross-sectional area may be taken by a plane substantially parallel to the display surface of the electronic device 100 , and may also be referred to as a sound exit section or an equivalent sound exit section. The cross-sectional area of the inverted hole 11 is in the range of 0.5 mm ² to 3 mm ² . For example, the cross-sectional area of the inverted hole 11 may be 0.5mm ² , 0.8mm ² , 1.0mm ² , 1.2mm ² , 1.4mm ² , 1.5mm ² , 1.8mm ² , 2mm ² , 2.5mm ² , 2.8mm ² , 3 mm ² , etc., or, the cross-sectional area of the phase inversion hole 11 may fall within the numerical range defined by any two of the above numerical values. The above-mentioned limitation on the size of the phase reversal hole 11 is also applicable to the limitation on the size of the sound guide hole 541 , which will not be repeated in this specification. Further, the number of the inverting holes 11 may be one or more. When there are multiple inverting holes 11 , the range of the sum of the cross-sectional areas of the plurality of inverting holes 11 (that is, the equivalent sound exit section) is 0.5mm ² to 3mm ² , the number and structure of the plurality of phase reversal holes 11 and the sound guide holes 541 are set in a one-to-one correspondence. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless expressly and specifically defined otherwise.

In other embodiments, the phase reversing hole 11 may be opened in other parts of the rear shell 14. For example, the phase reversing hole 11 is deviated from the position facing the rear sound cavity 1013, and the sound guide hole 541 or other sound guide holes are used. A pipe connects the two. For example, the phase reversal hole 11 may be opened in any one of the four corners of the rear case 14 , and a sound guide pipe may be provided between the phase reversal hole 11 and the installation groove 1235 . Alternatively, as shown in FIG. 5 , the inverter hole 11 may be a through hole opened in the frame portion 121 , and the second sealing member 54 may not need to have a sound guide hole, so that the inverter hole 11 penetrates through the outside of the frame portion 121 . Specifically, one end of the inversion hole 11 communicates with the installation groove 1235 , and the other end penetrates the outer surface of the frame portion 121 to communicate the rear sound cavity 1013 with the outside. In the embodiment shown in FIG. 5 , the inverter hole 11 is opened on the first frame 124 . In other embodiments, the inverter hole 11 can also be opened in the second frame 125 , as long as the inverter hole 11 connects the rear sound chamber 1013 communicates with the outside world to allow the second sound signal B to be sent out. It should be understood that, in the embodiment of the present application, only the case where the frame portion 121 and the rear case 14 are separate structures is shown. In other embodiments, the frame portion 121 and the rear case 14 may be integrally formed, and the two are jointly packaged. Covering the middle frame plate 123 and serving as the appearance surface (shell) of the electronic book device 100 , at this time, the phase reversing hole 11 can also be understood as being opened on the shell of the electronic device 100 and communicating with the rear sound cavity 1013 . Further, the phase reversal hole 11 may be provided with a dust-proof net or a waterproof sound-permeable membrane. The dust-proof net or the waterproof sound-permeable membrane is used to prevent particles such as dust and liquid from entering the interior of the electronic device 100 and causing damage to the receiver 50 . The reliability of the sound output of the receiver 50 is guaranteed, and the appearance is beautified.

In the electronic device 100 provided by the embodiment of the present application, the receiver 50 is arranged in the inner cavity 1010 of the electronic device 100, the sound outlet 301 is arranged between the edge of the display screen 30 and the casing 10, and the position of the sound outlet 301 is different. The installation space or display space of the display screen 30 needs to be occupied, which is beneficial to free up more installation space for the display panel of the display screen 30, so that the electronic device 100 has a higher screen occupation under the premise of the same external size. Therefore, it is beneficial to realize the full-screen display of the electronic device 100 . Further, in the embodiment of the present application, the casing 10 is further provided with a phase reversal hole 11 that communicates with the rear sound cavity 1013 , and the sound waves transmitted through the rear sound cavity and the phase reversal hole 11 are used to communicate with each other via the sound outlet 301 The outgoing sound waves cancel each other out, so that the loudness of the sound outgoing from the receiver 50 outside the range of the user's auricle is reduced, preventing other people around the user from hearing the sound of the receiver 50, and improving the voice privacy of the user using the electronic device 100 .

Referring to FIG. 6 , the embodiment of the present application further provides another electronic device 200 , and the electronic device 200 is a modified structure of the above-mentioned electronic device 100 . The electronic device 200 shown in FIG. 6 has substantially the same structure as the electronic device 100 shown in FIG. 4 , and the differences are:

The rear case 214 of the electronic device 200 includes a main body portion 5141 and a protruding portion 5143. The main body portion 5141 and the middle frame plate 2123 are arranged approximately opposite to each other. Pass through the body portion 5141 and the protruding portion 5143 . Further, the protruding portion 5143 is partially accommodated in the installation groove 1235 to occupy a part of the space of the installation groove 1235, which can reduce the volume of the rear sound cavity 1013 to a certain extent, thereby ensuring that the sound waves in the rear sound cavity 1013 can vibrate And almost exclusively leaks to the outside through the phase reversal hole 211 . The second sealing member 254 is substantially annular, which surrounds the outer circumference of the protruding portion 5413 and is stacked on the step portion 1238 to substantially seal the circumference of the mounting groove 1235 . In this embodiment, by adopting the structure of the protruding portion 2143 of the rear case 14 to reduce the volume of the rear sound cavity 1013, the components of the electronic device 200 can be simplified in structure, thereby simplifying the assembly process of the electronic device 200 and reducing the cost .

Based on the embodiment shown in FIG. 6 , in other embodiments, the phase inversion hole 211 may be a through hole opened in the frame portion 2121 , and the rear case 214 does not need to be provided with a hole, and the phase inversion hole 211 penetrates through the frame portion 2121 . The outer surface is used to communicate the rear sound cavity 1013 with the outside world, as shown in FIG. 7 . The phase-inverting hole 211 can be opened at any part of the frame part 2121 , as long as the phase-inverting hole 211 communicates the rear sound cavity 1013 with the outside to allow the second sound signal B to pass out, it is not limited to the description in the embodiments of the present application. By opening the phase-inverting hole 211 in the frame portion 2121 , the phase-inverting hole 211 can be more concealed than the solution in which the phase-inverting hole 211 is formed in the rear case 14 , so as to avoid damaging the structural integrity of the rear case 14 .

Referring to FIG. 8 , regarding the electronic devices 100 and 200 provided by the embodiments of the present application, in an actual application scenario, the electronic devices 100 and 200 can be used as smart electronic devices, such as smart phone terminals. In this case, the electronic devices 100 and 20 also generally include one or more (only one shown in the figure) processor 102 , memory 104 , RF (Radio Frequency) module 106 , audio circuit 110 , sensors, input module 118 , and power module 122 . Those of ordinary skill in the art can understand that the structure shown in FIG. 8 is only for illustration, and does not limit the structure of the electronic devices 100 and 200 . For example, the electronic devices 100 , 200 may also include more or fewer components than those shown in FIG. 8 , or have a different configuration than that shown in FIG. 8 .

Those of ordinary skill in the art can understand that, with respect to the processor 102, all other components belong to peripheral devices, and the processor 102 and these peripheral devices are coupled through a plurality of peripheral device interfaces. The peripheral interface can be implemented based on the following standards: Universal Asynchronous Receiver/Transmitter (UART), General Purpose Input/Output (GPIO), Serial Peripheral Interface (SPI), Inter-Integrated Circuit (I2C), but not limited to the above standards. In some instances, the peripheral interface may include only a bus; in other instances, the peripheral interface may include other elements, such as one or more controllers, such as a display controller for connecting to the display screen 30 or for The storage controller to which the storage is attached. In addition, these controllers can also be separated from the peripheral interface and integrated into the processor 102 or corresponding peripherals.

The memory 104 can be used to store software programs and modules, and the processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104 . Memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. The RF module 106 is used for receiving and sending electromagnetic waves, realizing mutual conversion between electromagnetic waves and electrical signals, so as to communicate with a communication network or other devices.

The audio circuit 110 , the speaker 101 , the sound jack 103 , and the microphone 105 collectively provide an audio interface between the user and the electronic device 100 , 200 or the display screen 30 . Specifically, the audio circuit 110 receives sound data from the processor 102 , converts the sound data into electrical signals, and transmits the electrical signals to the speaker 101 and the receiver 50 . The speaker 101 and the receiver 50 convert electrical signals into sound waves audible to human ears. Audio circuitry 110 also receives electrical signals from microphone 105, converts the electrical signals into sound data, and transmits the sound data to processor 102 for further processing. Audio data may be obtained from memory 104 or through RF module 106 . Additionally, audio data may also be stored in the memory 104 or transmitted through the RF module 106 .

Sensors are provided in the housing 10 or in the display screen 30 , and examples of the sensors include, but are not limited to, light sensors, running sensors, pressure sensors, gravitational acceleration sensors, and other sensors. In an embodiment, the input module 118 may include a touch display screen 109 disposed on the display screen 30, and the touch display screen 109 may collect the user's touch operations on or near it (for example, the user uses a finger, a stylus, etc., any suitable object or The accessory operates on or near the touch display screen 109 ), and drives the corresponding connection device according to the preset program. The display screen 30 is used to display various graphical user interfaces for displaying information entered by the user, information provided to the user, and these graphical user interfaces may consist of graphics, text, icons, numbers, video, and any combination thereof, in one example , the touch display screen 109 can be arranged on the display panel so as to form a whole with the display panel.

The power module 122 is used to provide power supply to the processor 102 and various other components. Specifically, the power module 122 may include a power management system, one or more power sources (eg, batteries or AC power), charging circuits, power failure detection circuits, inverters, power status indicators, and any other electronic components associated with the display screen 30 . Components related to the generation, management, and distribution of electrical power within a device.

Further, please refer to FIG. 1 again. In some embodiments, the above-mentioned electronic device may be a full-screen electronic device, and a full-screen electronic device should be understood as an electronic device with a screen ratio greater than or equal to a preset value, that is, a display screen When arranged on the front of the housing, the percentage of the surface area of the display screen to the projected area of the front of the housing is greater than or equal to a preset value. In some embodiments, the preset value of the screen ratio may be greater than or equal to 80%, such as 80%, 81%, 83%, 85%, 87%, 89%, 90%, 91%, 93%, 95% , 97%, 99%, etc. In some embodiments, the front of the full-screen electronic device may be provided with three or less physical keys, or/and, the front of the full-screen electronic device may be provided with two or less openings to simplify the structure of the full-screen electronic device , which is conducive to improving the screen ratio of full-screen electronic devices.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or some technical features thereof are equivalently replaced; and these modifications or replacements do not drive the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. an electronic device, is characterized in that, comprises: a shell, having an inner cavity; a receiver, disposed in the inner cavity, the inner cavity includes a front sound cavity and a rear sound cavity respectively located on opposite sides of the receiver; and The display screen is covered on the casing, and the edge of the display screen is connected with the casing; a sound outlet is arranged between the edge of the display screen and the casing, and the sound outlet It is communicated with the front sound cavity; the shell is provided with a phase reversal hole, and the phase reversal hole is communicated with the rear sound cavity. 2 . The electronic device according to claim 1 , wherein the casing comprises a frame part and a rear casing, the frame part is connected to an edge of the display screen, and the sound outlet is arranged on the between the frame portion and the edge of the display screen; the rear case is arranged on the side of the frame portion away from the display screen. 3 . The electronic device according to claim 2 , wherein the casing further comprises a middle frame plate, the middle frame plate is disposed between the display screen and the rear casing, and the frame portion is disposed on the edge of the middle frame plate; the side of the middle frame plate facing the rear shell is provided with an installation groove, the receiver is fixed in the installation groove, and the installation groove is communicated with the sound outlet, so The rear sound cavity is formed based on the mounting groove. 4 . The electronic device according to claim 3 , wherein the middle frame plate is further provided with a sound guide channel penetrating the bottom of the installation groove, the sound guide channel is communicated with the sound outlet, and the The front sound cavity is formed based on the sound guide channel; the electronic device further includes a first sealing member, and the first sealing member is arranged between the bottom wall of the installation groove and the receiver. 5 . The electronic device according to claim 3 , wherein the middle frame plate comprises a stepped portion located in the installation groove, the stepped portion makes the installation groove a stepped groove structure, and the receiver has a stepped groove structure. 6 . The surface is concave relative to the step portion; the electronic device further includes a second sealing member, and the second sealing member is stacked on the step portion. 6 . The electronic device according to claim 5 , wherein the phase reversal hole is opened in the rear case, the second sealing member comprises a sealing portion and a sound guide tube, and the sealing portion is provided with a sound guide tube. 7 . The sound guide hole is communicated with the inverted hole; the sound guide tube is arranged between the inverted hole and the sealing part. 7 . The electronic device according to claim 5 , wherein the phase inversion hole is opened in the frame portion, one end of the phase inversion hole is communicated with the installation groove, and the other end penetrates through the frame portion. 8 . The outer surface. 8 . The electronic device according to claim 3 , wherein the rear case comprises a main body portion and a protruding portion connected to the main body portion, the main body portion is opposite to the middle frame plate, and the protruding portion is opposite to the middle frame plate. 9 . The outgoing portion is at least partially accommodated in the mounting groove, and the phase inversion hole penetrates through the protruding portion and the body portion. 9 . The electronic device according to claim 8 , wherein the electronic device further comprises a second sealing member, the second sealing member surrounds the outer periphery of the protruding portion and is located between the middle frame plate and the middle frame plate. 10 . between the body parts. 10. The electronic device according to any one of claims 1 to 9, wherein there is at least one phase-inverting hole, and the range of the equivalent sound exit section of all the phase-inverting holes is: 0.5 mm ² ~3mm ² .

Images