WO2020215993A1 - 移动终端 - Google Patents

移动终端 Download PDF

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Publication number
WO2020215993A1
WO2020215993A1 PCT/CN2020/081845 CN2020081845W WO2020215993A1 WO 2020215993 A1 WO2020215993 A1 WO 2020215993A1 CN 2020081845 W CN2020081845 W CN 2020081845W WO 2020215993 A1 WO2020215993 A1 WO 2020215993A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound
guide channel
mobile terminal
front cavity
screen
Prior art date
Application number
PCT/CN2020/081845
Other languages
English (en)
French (fr)
Inventor
麦碧权
Original Assignee
维沃移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to AU2020261764A priority Critical patent/AU2020261764B2/en
Priority to ES20794143T priority patent/ES2950860T3/es
Priority to EP20794143.6A priority patent/EP3962043B1/en
Priority to KR1020217036586A priority patent/KR102559802B1/ko
Publication of WO2020215993A1 publication Critical patent/WO2020215993A1/zh
Priority to US17/507,646 priority patent/US11805341B2/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H04M1/035—Improving the acoustic characteristics by means of constructional features of the housing, e.g. ribs, walls, resonating chambers or cavities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/021—Casings; Cabinets ; Supports therefor; Mountings therein incorporating only one transducer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/15—Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops

Definitions

  • the present disclosure belongs to the field of communication technology, and particularly relates to a mobile terminal.
  • the front camera is located in the "drop" area of the screen, and the sound hole of the earpiece is located at the edge of the screen.
  • the front camera is located in the middle of the screen, and the sound hole is also symmetrically arranged with respect to the center line of the screen. Therefore, the earpiece is eccentrically designed in the internal space of the mobile terminal below the screen.
  • the posture of answering the call includes the left-handed mobile terminal to answer at the left ear side and the right-handed mobile terminal to answer at the right ear side. In any posture, there will be a phenomenon that the ears block part of the area of the sound hole, and the earpiece can only emit sound through the area that is not blocked by the sound hole.
  • the embodiments of the present disclosure provide a mobile terminal to solve the problem that the sound quality of the call is reduced due to the distance between the unobstructed area of the sound hole and the earpiece when the user answers the call in one of the postures.
  • the embodiment of the present disclosure provides a mobile terminal, including a screen, an earpiece, and a casing.
  • the screen is installed on the casing, the earpiece is arranged in the casing, and the screen is provided with a sound outlet, and the sound outlet corresponds to an independently provided first in the casing.
  • a front cavity sound outlet and a second front cavity sound outlet the first front cavity sound outlet is connected to the earpiece through the first sound guide channel, and the second front cavity sound outlet is connected to the earpiece through the second sound guide channel; ,
  • the difference between the length of the first sound guide channel and the length of the second sound guide channel is within a preset range.
  • the sound hole when a user answers a call, no matter whether the posture of answering the call is that the left-handed mobile terminal is answered at the left ear side, or the right-handed mobile terminal is answered at the right ear side, part of the sound hole will be affected by the ear. Occlude. If the area shielded by the sound hole corresponds to the first front cavity sound outlet, the sound from the earpiece can be played by the second front cavity sound outlet through the second sound guide channel; if the area blocked by the sound hole corresponds to the second The front cavity sound outlet, the sound emitted by the earpiece can be played by the first front cavity sound outlet through the first sound guide channel.
  • the sound produced by the earpiece can be propagated from two independent paths, and the difference between the length of the first sound guide channel and the length of the second sound guide channel is within the preset range, so that each The separation distance between the sound outlet and the earpiece is close, and the sound guide channel plays a role of condensing the sound, so the sound quality of the two paths is equal, and the sound quality is better. It can be seen that when the user answers the call in any of these postures, the sound quality of the call will not be reduced due to the distance between the unobstructed area of the sound hole and the earpiece, which improves the sound quality such as volume reduction and large distortion caused by the eccentricity of the earpiece. Reduce the problem.
  • FIG. 1 is a partial structural diagram of a mobile terminal provided by an embodiment of the present disclosure
  • FIG. 2 is one of the plan schematic diagrams of a mobile terminal provided by an embodiment of the present disclosure
  • Fig. 3 is a second schematic plan view of a mobile terminal provided by an embodiment of the present disclosure.
  • FIG. 4 is a third schematic plan view of a mobile terminal provided by an embodiment of the present disclosure.
  • Fig. 5 is a fourth schematic plan view of a mobile terminal provided by an embodiment of the present disclosure.
  • Fig. 6 is a fifth schematic plan view of a mobile terminal provided by an embodiment of the present disclosure.
  • Fig. 1 is a partial structural diagram of a mobile terminal provided by an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a mobile terminal, including a screen, an earpiece 1, and a housing.
  • the screen is installed on the housing, the earpiece 1 is set in the housing, and the screen is provided with a sound hole corresponding to the sound hole.
  • the first front cavity sound outlet 2 and the second front cavity sound outlet 3 are independently arranged in the housing.
  • the first front cavity sound outlet 2 is connected to the earpiece 1 through the first sound guide channel 4
  • the second front cavity sound outlet 3 is connected to the earpiece 1 through the second sound guide channel 5; wherein the difference between the length of the first sound guide channel 4 and the length of the second sound guide channel 5 is within a preset range.
  • the sound hole when a user answers a call, no matter whether the posture of answering the call is that the left-handed mobile terminal is answered at the left ear side, or the right-handed mobile terminal is answered at the right ear side, part of the sound hole will be affected by the ear. Occlude. If the area covered by the sound hole corresponds to the first front cavity sound outlet 2, the sound from the earpiece 1 can be played by the second front cavity sound outlet 3 through the second sound guide channel 5; if the area covered by the sound hole Corresponding to the second front cavity sound outlet 3, the sound emitted by the earpiece 1 can be played by the first front cavity sound outlet 2 through the first sound guide channel 4.
  • the sound produced by the earpiece 1 can be propagated from two independent paths, and the difference between the length of the first sound guide channel 4 and the length of the second sound guide channel 5 is within a preset range , So that the separation distance between each sound outlet and the earpiece 1 is close, and the sound guide channel plays a role of condensing the sound, so that the sound quality of the two paths is equivalent, and the sound quality is better. It can be seen that when the user answers the call in any of these postures, the distance between the unobstructed area of the sound hole and the earpiece 1 will not be reduced, which will reduce the sound quality of the call, and the eccentricity of the earpiece 1 will reduce the volume and large distortion. The problem of sound quality degradation.
  • the difference between the length of the first sound guide channel 4 and the length of the second sound guide channel 5 is within a preset range, so that the lengths of the two designed sound guide channels are close to ensure the passage of the two sound guide channels.
  • the sounds played by the first front cavity sound outlet 2 and the second front cavity sound outlet 3 are the same, so as to further improve the problem of inconsistent left and right sound caused by the eccentricity of the earpiece 1.
  • the length of the first sound guide channel 4 and the length of the second sound guide channel 5 are equal.
  • the length of the first sound guide channel 4 is equal to the length of the second sound guide channel 5, which can ensure that the sound from the earpiece 1 is played synchronously after passing through the two paths, and the playback volume is exactly the same, so that the user can answer in any posture When calling, the sound quality of the call can be ensured.
  • the sound emitted by the earpiece 1 can pass through the first sound guide channel 4 and The second sound guide channel 5 is played simultaneously by the first front cavity sound outlet 2 and the second front cavity sound outlet 3 to realize sound superposition and enhance the voice volume.
  • the specific position of the sound guide channel connected to the earpiece 1 is not limited, and at the same time, the specific position of the sound guide channel connected to the corresponding front cavity sound outlet is not set.
  • the limitation is that the length of the two sound guide channels is close or even equal.
  • the sound guide channel is connected to the sound cavity of the earpiece 1, so that the sound emitted by the earpiece 1 is transmitted to the sound guide channel through the sound cavity, and then is played out by the corresponding front cavity sound outlet.
  • FIG. 2 is one of the plan schematic diagrams of the mobile terminal provided by the embodiment of the present disclosure.
  • Fig. 3 is a second schematic plan view of a mobile terminal provided by an embodiment of the present disclosure.
  • the entire sound outlet corresponds to an independent front cavity sound outlet in the housing, and this front cavity sound outlet is called the third front cavity sound outlet. ⁇ 6.
  • a third sound guide channel 7 can be connected between the third front cavity sound outlet 6 and the earpiece 1. However, this can only ensure the playback sound quality of the third front cavity sound outlet 6 closer to the earpiece 1, but still cannot ensure the playback sound quality of the entire third front cavity sound outlet 6.
  • the sound hole corresponds to the third front cavity sound outlet 6, and the third front cavity sound outlet 6 can be connected to the right side of the third front cavity sound outlet 6 and the earpiece 1.
  • the earlobe blocks the right side of the sound hole, and the sound from the earpiece 1 is from the third sound guide channel 7, It is played out from the left position of the third front cavity sound outlet 6, which makes the sound channel longer, resulting in small sound and distortion.
  • the playback effects of different positions of the front cavity sound outlet are processed to improve the playback sound quality.
  • a single sound guide channel is set.
  • the embodiment of the present disclosure is provided with a double sound guide. Channels can improve the problem that the distortion indicators of the audio objective test are out of the box.
  • the solution in the embodiment of the present disclosure can also be applied to a mobile terminal with the earpiece 1 centrally arranged.
  • the difference between the length of the first sound guide channel 4 and the length of the second sound guide channel 5 is less than half of the minimum wavelength value of the broadband voice.
  • the first sound guide channel 4 and the second sound guide channel 5 are designed to have the same length as much as possible. In the design, a certain error is allowed, but the error needs to be within a preset range.
  • the length values of the first sound guide channel 4 and the second sound guide channel 5 inside the casing are much smaller than the minimum wavelength value of the broadband voice. Further, when the difference between the length of the first sound guide channel 4 and the length of the second sound guide channel 5 is less than half of the minimum wavelength value of the broadband voice, when the two sounds are propagating at the same time, the sound phase is the same, and they are in mutual overlap and enhancement. In the area, the effect of increasing the volume of the call is achieved, thereby avoiding the phenomenon that the two sound waves weaken each other.
  • the length value of the first sound guide channel 4 and the length value of the second sound guide channel 5 are both smaller than the minimum wavelength value of the broadband voice.
  • the length value of the first sound guide channel 4 and the length value of the second sound guide channel 5 are both less than 0.0425m.
  • ⁇ v/f, where ⁇ represents the wavelength, v represents the speed of sound, and f represents the frequency.
  • the speed of sound is 340m/s in the air.
  • the maximum frequency of wideband speech is 8Khz
  • the minimum sound wavelength is 0.0425m (340/8000).
  • the first sound guide channel 4 and the second sound guide channel 5 are designed to be the same length as possible. It is much smaller than 0.0425m.
  • Fig. 4 is a third schematic plan view of a mobile terminal provided by an embodiment of the present disclosure.
  • Fig. 5 is a fourth schematic plan view of a mobile terminal provided by an embodiment of the present disclosure.
  • Fig. 6 is a fifth schematic plan view of a mobile terminal provided by an embodiment of the present disclosure.
  • first front cavity sound outlet 2 and the second front cavity sound outlet 3 are separated by an isolation mechanism 8 on the housing.
  • the sound hole and the corresponding housing space below can be used as the front cavity sound outlet, so the front cavity sound outlet can be divided into independent first front cavity sound outlet 2 and second front cavity by the isolation mechanism 8 Speak out 3.
  • first front cavity sound outlet 2 and the second front cavity sound outlet 3 may be symmetrical with respect to the isolation mechanism 8, so that the space size of the first front cavity sound outlet 2 and the second front cavity sound outlet 3 are equal in size, which further makes the sound effects transmitted through the two channels completely consistent.
  • the first front cavity sound outlet 2 and the second front cavity sound outlet 3 can be formed separately in the left-right direction.
  • the device composed of the first sound guide channel 4 and the first front cavity sound outlet 2 and the device composed of the second sound guide channel 5 and the second front cavity sound outlet 3 are independent of each other , To avoid the deterioration of playback sound quality due to interference between sounds.
  • the isolation mechanism 8 is a part of the body structure of the housing; or, the isolation mechanism 8 is a glue structure on the housing.
  • two spaces can be dug out respectively as the first front cavity sound outlet 2 and the second front cavity sound outlet 3, and a part of the body of the housing is retained between the two spaces Structure as isolation mechanism 8.
  • two spaces can be dug out in the adhesive structure provided in the shell to serve as the first front cavity sound outlet 2 and the second front cavity sound outlet 3, leaving part of the adhesive between the two spaces.
  • the glue structure is used as the isolation mechanism 8.
  • the sound hole is a long strip hole, the sound hole is located at the top edge of the screen, and the sound hole is parallel to the top edge of the screen; the earpiece 1 is located on the first side or the second side of the central axis of the screen.
  • the sound output of the earpiece 1 is gradually designed to be micro-slit and narrow-slit.
  • the non-display area of the screen is used to set the camera.
  • the camera is set at the top of the screen in the middle, and the sound is output through narrow slits and micro slits.
  • the sound hole is located at the center of the top edge of the screen, and the sound hole is parallel to the top edge of the screen. From the outside, the sound hole still emits sound from the center of the screen.
  • the earpiece 1 is placed in the non-center of the screen and does not occupy the non-display area.
  • the earpiece 1 is located in the left or right area at the bottom of the screen.
  • the earpiece 1 deviates from the center axis of the screen, which causes the user to hold the call in different directions.
  • the ears block the area where the sound hole is closer to the earpiece 1 .
  • the subjective listening volume is much lower, and there are distortions, noises, vibrato, etc., while the other side of the phone is close to the sound hole, the volume and sound quality are normal.
  • the mobile terminal of this embodiment designs the first sound guide channel 4 and the second sound guide channel 5, and separates the first front cavity sound outlet 2 and the second front cavity sound outlet 3, which effectively improves the earpiece 1
  • One side answering caused by eccentric design has problems such as low sound and poor sound quality.
  • the mobile terminal in this embodiment may be a single-sided screen or a double-sided screen.
  • the earpiece 1 is located on the first side or the second side of the central axis of the screen.
  • the handset 1 can be located on the left or right side of the central axis of the screen, or the handset 1 can be located on the upper or lower side of the central axis of the screen, or the handset 1 can be located on the central axis of the screen.
  • the other azimuth side is located on the left or right side of the central axis of the screen.
  • the mobile terminal further includes a camera module 9, the camera module 9 includes a camera, and a bracket for fixing the camera, the bracket is provided with a first hollow part 91 and a second hollow part 92;
  • the first hollow part 91 on the bracket and the multi-section pipeline are connected in sequence in a preset order to form the first sound guide channel 4;
  • the second hollow part 92 on the bracket and the multi-section pipeline are sequentially connected in a preset order Connect to form the second guide channel 5.
  • the camera module 9 is located on the central axis of the screen, and the earpiece 1 is located on the right side of the camera module 9:
  • the earlobe blocks the first front cavity sound outlet 2.
  • the sound from the earpiece 1 passes through the second sound guide channel 5 and is played by the second front cavity sound outlet 3;
  • the earlobe blocks the second front cavity sound outlet 3 ,
  • the sound emitted by the earpiece 1 passes through the first sound guide channel 4 and is played by the first front cavity sound outlet 2. It can be seen that in the two cases, the sound channel length is close to avoid the sound reduction and distortion caused by the longer sound channel phenomenon.
  • the length of the sound guide channel needs to be designed as short as possible.
  • the internal material of the bracket is hollowed out as a part of the sound guide channel, so that the sound guide channel can reduce the internal space of the mobile terminal.
  • the first hollow part 91 and the second hollow part 92 can be hollowed out at two different positions of the bracket respectively.
  • the position, shape, size and other characteristics of the first hollow part 91 and the second hollow part 92 can be based on It depends on the structural characteristics of the stand itself, the internal layout of the mobile terminal, and the characteristics of the sound guide channel.
  • the bracket is arranged around the camera, chip, etc., so the first hollow portion 91 and the second hollow portion 92 can be formed by hollowing out the inside of the bracket without affecting the camera , Chips, etc.
  • a first hollow portion 91 and a second hollow portion 92 may be formed on the left and right sides of the bracket respectively.
  • the first hollow part 91 formed on the left side of the bracket is connected to the multi-section pipeline on the left side of the screen to form the first sound guide channel 4, which is connected to the sound outlet of the left front cavity corresponding to the sound outlet;
  • the second hollow portion 92 formed on the right side of the bracket is connected to the multi-section pipeline on the right side of the screen to form a second sound guide channel 5, which is connected to the sound outlet of the right front cavity corresponding to the sound hole.
  • the first hollow portion 91 and the second hollow portion 92 need to ensure that the normal use of the bracket is not affected, so as to ensure that the bracket can perform the original function, for example, the function of fixing the camera.
  • the first hollowed-out part 91 and the multi-section pipeline are sequentially connected in a preset order to form the first sound guide channel 4; the second hollowed-out part 92 on the bracket and the multi-section pipeline are sequentially connected in a preset order.
  • the preset sequence here is not specifically limited.
  • the front cavity sound outlet and the hollow part can be connected through a pipeline, or the front cavity sound outlet can be directly connected to the hollow part; the earpiece 1 and the hollow part can be connected through a pipeline.
  • the earpiece 1 may be directly connected to the hollow part. Therefore, the number and shape of pipelines are not limited.
  • the first hollow part 91 and the second hollow part 92 are respectively two through holes on the bracket, the cross section of the through hole matches the shape of the cross section of the pipeline connected to the through hole, and the through hole The cross section of is matched with the area of the cross section of the pipeline connected to the through hole.
  • the hollow part may be a through hole on the bracket, and the through hole matches the cross-sectional area and shape of the pipeline connected to it, so that the hollow part and the multi-section pipeline form an independent Guidance channel.
  • the processing technology of the through hole is relatively simple, and it is easy to connect with the conventional pipeline, which reduces the processing cost and simplifies the operation technology.
  • the shape of the non-display area of the screen is a drop shape.
  • the non-display area in the shape of a water drop is used to set the camera to maximize the area of the display area of the screen.
  • the housing includes a middle frame 10 surrounding the screen.
  • FIGS. 4 to 6 only the first sound guide channel 4 and the second sound guide channel 5 are schematically shown, and the shape, position, length, etc. are not limited.
  • the embodiments of the present disclosure add two sound guide channels to guide the sound from the mobile terminal to two independent front cavity sound outlets.
  • the two front cavity sound outlets and the two sound guide channels form a three-dimensional
  • the conductive structure realizes sound superposition to enhance the voice volume and improve the low volume and distortion caused by the eccentric earpiece.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Telephone Set Structure (AREA)
  • Telephone Function (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

本公开实施例提供了一种移动终端，涉及通信技术领域，以解决用户以其中一种姿态接听电话时，因出音孔未遮挡的区域与听筒之间的间隔变远而导致通话音质降低的问题。其中，移动终端包括屏幕、听筒和壳体，屏幕安装在壳体上，听筒设置于壳体内，屏幕上设置有出音孔，出音孔对应壳体内独立设置的第一前腔出声口和第二前腔出声口，第一前腔出声口通过第一导音通道与听筒连接，第二前腔出声口通过第二导音通道与听筒连接；其中，第一导音通道的长度与第二导音通道的长度的差值在预设范围内。

Description

移动终端
相关申请的交叉引用
本申请主张在2019年4月24日在中国提交的中国专利申请号201910335593.X的优先权，其全部内容通过引用包含于此。
技术领域
本公开属于通信技术领域，尤其涉及一种移动终端。
背景技术
目前，全面屏已成为趋势，常见的全面屏类型如刘海屏。为了进一步提高移动终端的屏占比，将刘海屏的“刘海”缩小为“水滴”的造型，从而形成水滴屏。
在水滴屏移动终端的设计中，前置摄像头位于屏幕“水滴”区域内，听筒的出音孔位于屏幕边缘。为了使外观达到极致的美感，前置摄像头位于屏幕正中间，出音孔也相对于屏幕的中心线对称设置，因此在屏幕下方的移动终端内部空间中，听筒偏心设计。用户在使用移动终端的过程中，接听电话的姿态包括左手持移动终端在左耳侧接听和右手持移动终端在右耳侧接听。在任一姿态中，都会出现耳朵遮挡出音孔的部分区域的现象，而听筒只能通过出音孔未遮挡的区域发出声音。
而由于听筒偏心设计，用户以其中一种姿态接听电话时，会因为出音孔未遮挡的区域与听筒之间的间隔变远而导致通话音质降低。
申请内容
本公开实施例提供一种移动终端，以解决用户以其中一种姿态接听电话时，因出音孔未遮挡的区域与听筒之间的间隔变远而导致通话音质降低的问题。
为了解决上述技术问题，本公开是这样实现的：
本公开实施例提供了一种移动终端，包括屏幕、听筒和壳体，屏幕安装在壳体上，听筒设置于壳体内，屏幕上设置有出音孔，出音孔对应壳体内独立设置的第一前腔出声口和第二前腔出声口，第一前腔出声口通过第一导音通道与听筒连接，第二前腔出声口通过第二导音通道与听筒连接；其中，第一导音通道的长度与第二导音通道的长度的差值在预设范围内。
在本公开实施例中，当用户接听电话时，无论接听电话的姿态为左手持移动终端在左耳侧接听，还是右手持移动终端在右耳侧接听，都会导致出音孔的部分区域被耳朵遮挡。若出音孔遮挡的区域对应为第一前腔出声口，则听筒发出的声音可通过第二导音通道由第二前腔出声口播放；若出音孔遮挡的区域对应为第二前腔出声口，则听筒发出的声音可通过第一导音通道由第一前腔出声口播放。从上述过程可以看出，听筒产生的声音可分别从两条相互独立的路径传播出去，且第一导音通道的长度与第二导音通道的长度的差值在预设范围内，使得各个出声口与听筒之间的间隔距离接近，且导音通道对声音起到收拢的作用，从而两条路径播放音质相当，且音质较好。可见，用户以其中任一种姿态接听电话时，均不会因出音孔未遮挡的区域与听筒之间的间隔变远而导致通话音质降低，改善了听筒偏心导致音量降低、失真大等音质降低的问题。
附图说明
下面将通过参考附图来描述本公开示例性实施例的特征、优点和技术效果。
图1是本公开一个实施例提供的移动终端的局部结构图；
图2是本公开实施例提供的移动终端的平面示意图之一；
图3是本公开实施例提供的移动终端的平面示意图之二；
图4是本公开实施例提供的移动终端的平面示意图之三；
图5是本公开实施例提供的移动终端的平面示意图之四；
图6是本公开实施例提供的移动终端的平面示意图之五。
具体实施方式
下面结合附图和实施例对本公开的实施方式作进一步详细描述。以下实施例的详细描述和附图用于示例性地说明本公开的原理，但不能用来限制本公开的范围，即本公开不限于所描述的实施例。
图1是本公开一个实施例提供的移动终端的局部结构图。
参见图1，本公开实施例提供了一种移动终端，包括屏幕、听筒1和壳体，屏幕安装在壳体上，听筒1设置于壳体内，屏幕上设置有出音孔，出音孔对应壳体内独立设置的第一前腔出声口2和第二前腔出声口3，第一前腔出声口2通过第一导音通道4与听筒1连接，第二前腔出声口3通过第二导音通道5与听筒1连接；其中，第一导音通道4的长度与第二导音通道5的长度的差值在预设范围内。
在本公开实施例中，当用户接听电话时，无论接听电话的姿态为左手持移动终端在左耳侧接听，还是右手持移动终端在右耳侧接听，都会导致出音孔的部分区域被耳朵遮挡。若出音孔遮挡的区域对应为第一前腔出声口2，则听筒1发出的声音可通过第二导音通道5由第二前腔出声口3播放；若出音孔遮挡的区域对应为第二前腔出声口3，则听筒1发出的声音可通过第一导音通道4由第一前腔出声口2播放。从上述过程可以看出，听筒1产生的声音可分别从两条相互独立的路径传播出去，且第一导音通道4的长度与第二导音通道5的长度的差值在预设范围内，使得各个出声口与听筒1之间的间隔距离接近，且导音通道对声音起到收拢的作用，从而两条路径播放音质相当，且音质较好。可见，用户以其中任一种姿态接听电话时，均不会因出音孔未遮挡的区域与听筒1之间的间隔变远而导致通话音质降低，改善了听筒1偏心导致音量降低、失真大等音质降低的问题。
在本公开实施例中，第一导音通道4的长度与第二导音通道5的长度的差值在预设范围内，以使得设计两路导音通道的长度接近，从而可确保通过两路导音通道传播后，由第一前腔出声口2和第二前腔出声口3播放的声音大小一致，以进一步改善听筒1偏心导致左右出声不一致的问题。
参见图1，可选地，第一导音通道4的长度与第二导音通道5的长度 相等。
第一导音通道4的长度与第二导音通道5的长度相等，可以确保听筒1发出的声音经两条路径后同步播放，且播放音量大小完全一致，以使用户以任一种姿态接听电话时，均可确保通话音质。
可选地，若出音孔遮挡的区域对应为第一前腔出声口2的一部分或者第二前腔出声口3的一部分，则听筒1发出的声音可通过第一导音通道4和第二导音通道5，由第一前腔出声口2和第二前腔出声口3同时播放，实现声音叠加，以增强语音音量。
可选地，为了确保两路导音通道的长度接近，甚至相等，导音通道连接在听筒1上的具体位置不作限定，同时，导音通道连接在对应前腔出声口上的具体位置也不作限定，最终以两路导音通道的长度接近、甚至相等为目的。
可选地，导音通道与听筒1的音腔连通，从而听筒1发出的声音经音腔传播至导音通道，再由对应的前腔出声口播放出来。
图2是本公开实施例提供的移动终端的平面示意图之一。图3是本公开实施例提供的移动终端的平面示意图之二。
参见图2和图3，在听筒1偏心设置的移动终端中，通常，整个出音孔对应壳体内的一个独立的前腔出声口，称该前腔出声口为第三前腔出声口6。基于就近原则，可在第三前腔出声口6和听筒1之间连接第三导音通道7。但这样只能确保第三前腔出声口6距离听筒1较近的位置的播放音质，而仍然无法确保整个第三前腔出声口6的播放音质。
例如，参见图2，在听筒1偏右设置的移动终端中，出音孔对应第三前腔出声口6，可在第三前腔出声口6右侧和听筒1之间连接第三导音通道7，当用户使用左手在左侧耳朵接听电话时，耳垂堵住出音孔左侧，则听筒1发出的声音从第三导音通道7，由第三前腔出声口6的右侧位置播放出来，播放声音的大小、音质均正常；当用户使用右手在右侧耳朵接听电话时，耳垂堵住出音孔右侧，则听筒1发出的声音从第三导音通道7，由第三前腔出声口6的左侧位置播放出来，从而使得发声通道变长，导致声音偏小、失真的情况发生。
在图3所示的听筒1偏左设置的移动终端同理，在此不再赘述。
因此，本实施例结合用户的操作习惯，针对前腔出声口的不同位置的播放效果，分别做了改善播放音质的处理。
其中，在图2和图3所示听筒1偏心设置的移动终端中，设置了单导音通道，在测试中得到，音频客观测试失真指标不入框，而本公开实施例设置了双导音通道，可改善音频客观测试失真指标不入框的问题。
可选地，本公开实施例中的方案也可应用在听筒1居中设置的移动终端中。
可选地中，第一导音通道4的长度与第二导音通道5的长度的差值小于宽带语音的最小波长值的一半。
第一导音通道4和第二导音通道5被尽量设计为相同长度，在设计中，允许有一定的误差，但误差需在预设范围内。
由于移动终端的尺寸限制，通常壳体内部的第一导音通道4和第二导音通道5的长度值是远远小于宽带语音的最小波长值的。进一步地，当第一导音通道4的长度与第二导音通道5的长度的差值小于宽带语音的最小波长值的一半时，两路声音同时传播时，声音相位一样，处于相互叠加增强的区域，达到增大通话音量的效果，从而可以避免两路声音波形互相减弱的现象。
可选地，第一导音通道4的长度值与第二导音通道5的长度值均小于宽带语音的最小波长值。
其中，第一导音通道4的长度值与第二导音通道5的长度值均小于0.0425m。
根据公式：λ＝v/f，其中，λ表示波长，v表示声速，f表示频率。声速在空气中取340m/s，目前宽带语音最大的频率是8Khz，最小声音波长为0.0425m(340/8000)，第一导音通道4和第二导音通道5被尽量设计为相同长度，远远小于0.0425m，两路声音同时传播时，声音相位一样，处于相互叠加增强的区域，达到增大通话音量的效果。
图4是本公开实施例提供的移动终端的平面示意图之三。图5是本公开实施例提供的移动终端的平面示意图之四。图6是本公开实施例提供的 移动终端的平面示意图之五。
参见图1、图4和图5，可选地，第一前腔出声口2和第二前腔出声口3被壳体上的隔离机构8分隔。
其中，出音孔及对应下方的壳体空间可用作前腔出声口，因此可利用隔离机构8将前腔出声口分隔为独立的第一前腔出声口2和第二前腔出声口3。
可选地，第一前腔出声口2和第二前腔出声口3可相对于隔离机构8对称，以使得第一前腔出声口2的空间大小和第二前腔出声口3的空间大小相等，从而进一步使得通过两路通道传播的声音效果完全一致。
示例性地，对于偏左设置或者偏右设置的听筒1，可按照左右方向分隔形成第一前腔出声口2和第二前腔出声口3。
基于上述设计，使得第一导音通道4和第一前腔出声口2组成的装置，与第二导音通道5和第二前腔出声口3组成的装置，二者之间相互独立，避免因声音之间的干扰造成播放音质变差的现象。
可选地，隔离机构8为壳体的一部分本体结构；或者，隔离机构8为壳体上的粘胶结构。
示例性地，可在壳体的本体结构中，分别挖出两个空间，作为第一前腔出声口2和第二前腔出声口3，两个空间之间保留壳体的一部分本体结构作为隔离机构8。
示例性地，可在设置于壳体的粘胶结构中，分别挖出两个空间，作为第一前腔出声口2和第二前腔出声口3，两个空间之间保留部分粘胶结构作为隔离机构8。
基于上述隔离机构8，较容易形成独立的第一前腔出声口2和第二前腔出声口3，且无需增加新的零件，加工难度较低，不会增加生产成本，也不会对移动终端内部结构造成影响。
可选地，出音孔为长条孔，出音孔位于屏幕的顶部边缘，且出音孔与屏幕的顶部边缘平行；听筒1位于屏幕的中轴线的第一侧或者第二侧。
在全面屏中，为了追求极致外观，听筒1出音也逐渐往微缝、窄缝出音进行设计。例如，常见的水滴屏中，屏幕的非显示区域用于设置摄像头， 通常为了拍摄效果和外观，将摄像头设置在屏幕的最上端居正中间，出音通过窄缝、微缝的形式进行出音，且出音孔位于屏幕的顶部边缘中心，出音孔与屏幕的顶部边缘平行，从外观看，出音孔还是从屏中心出音的。而听筒1放置在屏幕非居正中放置，且不占用非显示区域，对应地听筒1位于屏幕下方的左侧区域或者右侧区域。
在相关技术中，由于听筒1偏离屏幕的中轴线，这就导致了用户在不同方位手持通话，存在有一侧接听电话时，耳朵把出音孔距离听筒1较近的区域给堵住了的情况，使得主观听音量小了很多，同时存在失真、杂音、颤音等情况，而另外一侧接听电话因听筒1距离出音孔近，音量、音质则正常。
因此，本实施例的移动终端设计了第一导音通道4和第二导音通道5，以及分隔出第一前腔出声口2和第二前腔出声口3，有效改善这种听筒1偏心设计导致的一侧接听存在声小、失真等音质不佳的问题。
可选地，本实施例中的移动终端可以是单面屏，也可以是双面屏。
可选地，听筒1位于屏幕的中轴线的第一侧或者第二侧。在不同的移动终端中，可以是听筒1位于屏幕的中轴线的左侧或者右侧，还可以是听筒1位于屏幕的中轴线的上侧或者下侧，还可以是听筒1位于屏幕的中轴线的其它方位侧。
参见图4～图6，可选地，移动终端还包括摄像头模组9，摄像头模组9包括摄像头，以及用于固定摄像头的支架，支架设有第一镂空部91和第二镂空部92；支架上的第一镂空部91与多节管路之间按照预设顺序依次接通组成第一导音通道4；支架上的第二镂空部92与多节管路之间按照预设顺序依次接通组成第二导音通道5。
示例性地，参见图4，摄像头模组9位于屏幕的中轴线上，听筒1位于摄像头模组9右侧：用户使用左手在左侧耳朵接听电话时，耳垂堵住第一前腔出声口2，则听筒1发出的声音通过第二导音通道5，由第二前腔出声口3播放；用户使用右手在右侧耳朵接听电话时，耳垂堵住出第二前腔出声口3，则听筒1发出的声音通过第一导音通道4，由第一前腔出声口2播放；可见，两种情况下，发声通道长度接近，避免因发声通道变长导致 声音降低、失真的现象。
在图5所示移动终端存在的弊端参见图4所示移动终端，不再赘述。
可选地，为了避免播放声音偏低，同时为了避免导音通道占用移动终端内部的空间，需将导音通道的长度设计得尽量短。
参见图6，本公开实施例中利用支架挖空内部材料作为导音通道的一部分，从而可以减少导音通道占用移动终端的内部空间。
其中，第一镂空部91和第二镂空部92可分别在支架两处不同的位置挖空而来，具体第一镂空部91和第二镂空部92的位置、形状、大小等特征，可依据支架本身的结构特征、移动终端的内部布局、导音通道的特征等而定。
在本公开一个实施例的摄像头模组9中，支架围绕摄像头、芯片等设置，因此可通过支架内部的挖空，来形成第一镂空部91和第二镂空部92，也不会影响到摄像头、芯片等。其中，对于听筒1偏左或者偏右设置的移动终端，可分别在支架的左右两侧分别形成第一镂空部91和第二镂空部92。其中，支架左侧形成的第一镂空部91在屏幕的左侧区域与多节管路接通组成第一导音通道4，连接在出音孔对应的左侧前腔出声口上；对应地，支架右侧形成的第二镂空部92以在屏幕的右侧区域与多节管路接通组成第二导音通道5，连接在出音孔对应的右侧前腔出声口上。
其中，第一镂空部91和第二镂空部92需确保不影响支架的正常使用，以确保支架可起到原有的作用，例如，固定摄像头的作用等。
其中，第一镂空部91与多节管路之间按照预设顺序依次接通组成第一导音通道4；支架上的第二镂空部92与多节管路之间按照预设顺序依次接通组成第二导音通道5。这里的预设顺序没有具体的限定，可通过管路连接前腔出声口和镂空部，也可以是前腔出声口直接与镂空部连接；可通过管路连接听筒1和镂空部，也可以是听筒1直接与镂空部连接。因此管路的数量、形状不作限定。
可选地，第一镂空部91和第二镂空部92分别为支架上的两个通孔，通孔的横截面与接通在通孔上的管路的横截面的形状匹配，且通孔的横截面与接通在通孔上的管路的横截面的面积匹配。
在本公开实施例中，镂空部可以是支架上的通孔，且通孔与连接在其上的管路的横截面的面积、形状均匹配，从而镂空部与多节管路组成一个独立的导音通道。
其中，通孔的加工工艺较为简单，且易与常规的管路之间接通，降低加工成本，简化操作工艺。
可选地，屏幕的非显示区域的形状为水滴形状。
水滴形状的非显示区域用于设置摄像头，从而将屏幕的显示区域的面积最大化。
可选地，参见图1，壳体包括中框10，围绕在屏幕四周。
需要说明的是，在图4～图6中，仅示意性地表示第一导音通道4和第二导音通道5，不作形状、位置、长度等限定。
综上，本公开实施例通过增加两个导音通道，把声音从移动终端内部分别导到两个独立的前腔出声口，两个前腔出声口和两个导音通道形成一个立体传导的结构，实现声音叠加，以增强语音音量，改善听筒偏心导致的音量偏小、失真等问题。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。
虽然已经参考优选实施例对本公开进行了描述，但在不脱离本公开的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本公开并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (10)

  1. 一种移动终端，包括屏幕、听筒和壳体，所述屏幕安装在所述壳体上，所述听筒设置于所述壳体内，所述屏幕上设置有出音孔，所述出音孔对应所述壳体内独立设置的第一前腔出声口和第二前腔出声口，所述第一前腔出声口通过第一导音通道与所述听筒连接，所述第二前腔出声口通过第二导音通道与所述听筒连接；
    其中，所述第一导音通道的长度与所述第二导音通道的长度的差值在预设范围内。
  2. 根据权利要求1所述的移动终端，其中，所述第一导音通道的长度与所述第二导音通道的长度相等。
  3. 根据权利要求1所述的移动终端，其中，所述第一导音通道的长度与所述第二导音通道的长度的差值小于宽带语音的最小波长值的一半。
  4. 根据权利要求1所述的移动终端，其中，所述第一导音通道的长度值与所述第二导音通道的长度值均小于宽带语音的最小波长值。
  5. 根据权利要求1所述的移动终端，其中，所述第一前腔出声口和所述第二前腔出声口被所述壳体上的隔离机构分隔。
  6. 根据权利要求5所述的移动终端，其中，所述隔离机构为所述壳体的一部分本体结构；或者，所述隔离机构为所述壳体上的粘胶结构。
  7. 根据权利要求1所述的移动终端，其中，所述出音孔为长条孔，所述出音孔位于所述屏幕的顶部边缘，且所述出音孔与所述屏幕的顶部边缘平行；
    所述听筒位于所述屏幕的中轴线的第一侧或者第二侧。
  8. 根据权利要求7所述的移动终端，其中，所述移动终端还包括摄像头模组，所述摄像头模组包括摄像头，以及用于固定所述摄像头的支架，所述支架设有第一镂空部和第二镂空部；
    所述支架上的第一镂空部与多节管路之间按照预设顺序依次接通组成所述第一导音通道；
    所述支架上的第二镂空部与多节管路之间按照预设顺序依次接通组成 所述第二导音通道。
  9. 根据权利要求8所述的移动终端，其中，所述第一镂空部和所述第二镂空部分别为所述支架上的两个通孔，所述通孔的横截面与接通在所述通孔上的管路的横截面的形状匹配，且所述通孔的横截面与接通在所述通孔上的管路的横截面的面积匹配。
  10. 根据权利要求1所述的移动终端，其中，所述屏幕的非显示区域的形状为水滴形状。
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