WO2021000124A1

WO2021000124A1 - Mobile terminal

Info

Publication number: WO2021000124A1
Application number: PCT/CN2019/094022
Authority: WO
Inventors: 刘忠原; 印兆宇
Original assignee: 瑞声声学科技(深圳)有限公司; 瑞声科技(新加坡)有限公司
Priority date: 2019-06-29
Filing date: 2019-06-29
Publication date: 2021-01-07
Also published as: CN210016497U

Abstract

Provided is a mobile terminal, comprising a shell, a screen covering the shell and jointly enclosing an accommodating space with the shell, and a loudspeaker enclosure fixed in the accommodating space, wherein the loudspeaker enclosure is provided with a sound outlet; the shell comprises a bottom wall, a side wall extending from the periphery of the bottom wall in a bent mode, and an opening penetrating the side wall; and the screen is supported on the side wall, and the sound outlet is provided towards the side wall. The mobile terminal further comprises a sound conduction pipe fixed to the loudspeaker enclosure and communicating with the sound outlet, a sound emission portion sleeved on the sound conduction pipe, and a driving electric motor mounted in the accommodating space, wherein the sound emission portion comprises a shell body, and a sound opening penetrating the shell body, the shell body is sleeved on the sound conduction pipe, the sound opening is in communication with the sound conduction pipe, and the sound opening is provided towards the screen; and the driving electric motor is connected to the sound emission portion so as to drive the sound emission portion to move along the sound conduction pipe, and to drive the sound emission portion to stretch out of the accommodating space or retract into the accommodating space through the opening. Compared with the related technology, the mobile terminal in the present utility model has a good acoustic performance and can achieve a full screen.

Description

Mobile terminal

Technical field

The utility model relates to the field of sound and electricity, in particular to a portable mobile terminal.

Background technique

With the advent of the mobile Internet era, the number of smart mobile devices continues to rise. Among many mobile devices, mobile phones are undoubtedly the most common and portable mobile terminal. At present, the functions of mobile phones are extremely diverse, one of which is high-quality music functions. Therefore, speaker boxes for playing sound are widely used in current mobile devices.

A related art mobile terminal includes a housing, a screen that is covered on the housing and encloses a housing space with the housing, and a speaker box installed in the housing space. In order to make the screen design as large as possible Even to achieve the full screen, in the related art, a narrow slit is opened on the screen, and the sound hole of the speaker box is connected with the narrow slit, thereby forming a narrow slit sound output structure.

However, in the above sound production structure, since the narrow slit is used as the sound production structure of the mobile terminal, its size is too small, the speaker box is prone to piano noise under large amplitude, and one end of the whole screen It is still occupied and full screen is not really realized.

Therefore, it is necessary to provide a new mobile terminal to solve the above technical problems.

technical problem

The purpose of the utility model is to provide a mobile terminal with good acoustic performance and full screen.

Technical solutions

In order to achieve the above objective, the present invention provides a mobile terminal, which includes a housing, a screen that is covered on the housing and encloses a housing space with the housing, a speaker box installed and fixed in the housing space, A sound guide tube, a sound emitting part and a driving motor, the speaker box is provided with a sound outlet for sound; the housing includes a bottom wall, a side wall bent and extended from the periphery of the bottom wall, and a side wall penetrating through the side wall The screen cover is supported on the side wall, the sound outlet is opened toward the side wall; the sound guide tube is fixed to the speaker box and communicates with the sound outlet, The sound outlet is sleeved on the sound guide tube; the sound outlet includes a hollow shell and a sound port that penetrates the shell, and the shell is sleeved on the sound guide tube away from the speaker One end of the box, and the sound port is connected with the sound guide tube, and the sound port is opened toward the screen; the driving motor is installed in the containing space, and the driving motor is connected to the sound outlet It is used to drive the sound emitting part to move along the sound guide tube, and make the sound emitting part extend out of the containing space or retract into the containing space through the opening.

Preferably, the housing further includes a sound chute extending from the bottom wall and formed in the accommodating space, the sound chute is arranged directly opposite to the opening, the speaker box and the guide The sound tube is fixed in the sound chute, and the sound part slides along the axial direction of the sound chute.

Preferably, when the sound emitting part is retracted into the accommodating space, the sound emitting part is completely contained in the sound emitting chute, and the side of the sound emitting part away from the speaker box and the opening Flush.

Preferably, the housing includes an upper surface wall close to the screen, a lower surface wall disposed opposite to the upper surface wall, and a side surface wall connecting the upper surface wall and the lower surface wall, and the sound An opening is provided on the upper surface wall, and the side surface wall is provided with a sleeve opening and sleeved on the sound guide tube.

Preferably, the outer surface of the sound guide tube is recessed to form a sliding groove, and the sliding groove extends from an end of the sound guide tube close to the sound port in a direction close to the speaker box, and the sound outlet is sleeved In the chute.

Preferably, the direction of the sound outlet is perpendicular to the screen.

Preferably, the driving motor is a stepping motor.

Beneficial effect

Compared with the related art, in the mobile terminal of the present invention, the sound outlet of the speaker box is opened toward the side wall, and a sound guide tube and a sound part with a sound opening are also provided, and the sound guide tube is fixed to the side wall. The speaker box is in communication with the sound outlet of the speaker box, the sound outlet is sleeved on the sound guide tube, and the sound opening is connected to the sound guide tube, and the drive motor is connected to the sound guide tube. The sound output part is connected to drive the sound output part to move along the sound guide tube, and make the sound output part extend out of the receiving space or retract into the receiving space through the opening, In this way, the full screen structure is realized while the sound structure on the side of the screen is realized, which is no longer limited by the size of the narrow slit of the whole machine. The stereo effect is improved while avoiding the problem of stereo piano noise caused by the narrow slit, and the overall performance is better.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present utility model. For example, for those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings, among which:

Figure 1 is a schematic diagram of the three-dimensional structure of the mobile terminal of the present invention;

Figure 2 is an exploded view of a part of the three-dimensional structure of the mobile terminal of the present invention;

Figure 3 is another exploded view of the partial three-dimensional structure of the mobile terminal of the present invention;

Figure 4 is a cross-sectional view taken along line A-A in Figure 1;

Fig. 5 is an enlarged view of part B shown in Fig. 4;

Figure 6 is a schematic diagram of another state of Figure 5;

Fig. 7 is a curve diagram of the sound effect of the mobile terminal of the present invention and the related art narrow-slot sounding mobile terminal.

Embodiments of the invention

The following describes the technical solutions in the embodiments of the present utility model clearly and completely in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all of them. Examples. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

Please refer to FIGS. 1-6 at the same time. The present invention provides a mobile terminal 100, which includes a housing 1, a screen 2, a speaker box 3, a sound guide 4, a sound output part 5, and a driving motor 6. The screen 2 is arranged on the housing 1 and encloses a receiving space 10 together with the housing 1.

Specifically, the housing 1 includes a bottom wall 11, a side wall 12 extending from the periphery of the bottom wall 11, an opening 13 provided through the side wall 12, and an opening 13 extending from the bottom wall 11 and formed in the bottom wall 11 The sounding slide 14 in the containing space 10.

The screen 2 is covered and supported on the side wall 12, and only a part of the structure of the screen 2 is shown in FIG. 2.

The speaker box 3 is installed in the accommodating space 10, more specifically, the speaker box 3 is fixed in the sound chute 14. The speaker box 3 is provided with a sound outlet 31 for sound; the sound outlet 31 is opened toward the side wall 12.

The sound guide tube 4 is fixed to the speaker box 3 and communicates with the sound outlet 31. More specifically, the sound guide tube 4 is fixed in the sound outlet slide 14; the sound outlet 5 Set in the sound guide tube 4.

In this embodiment, the sound emitting part 5 includes a hollow housing 51 and a sound port 52 penetrating the housing 51. The housing 51 is sleeved on an end of the sound guide tube 4 away from the speaker box 3 and connects the sound port 52 with the sound guide tube 4, and the sound port 52 opens toward the screen 2.

The housing 51 includes an upper surface wall 511 close to the screen 2, a lower surface wall 512 disposed opposite to the upper surface wall 511, and a side surface wall connecting the upper surface wall 511 and the lower surface wall 512 513. The sound port 52 is opened on the upper surface wall 511, and the side surface wall 513 is provided with a sleeve opening 5130 and sleeved on the sound guide tube 4.

More preferably, in this embodiment, the sound output direction of the sound port 52 is perpendicular to the screen 2.

The driving motor 6 is installed in the receiving space 10. In this embodiment, the driving motor 6 is a stepping motor, which has high sensitivity and good controllability.

The driving motor 6 is connected to the sound emitting part 5 to drive the sound emitting part 5 to move along the sound guide tube 4, and more specifically, the sound emitting part 5 along the sound emitting slide 14 It slides in the axial direction, and makes the sound emitting part 5 extend out of the receiving space 10 or retract into the receiving space 10 through the opening 13.

More preferably, the outer surface of the sound guide tube 4 is recessed to form a slide groove 40, and the slide groove 40 extends from the end of the sound guide tube 4 close to the sound port 52 toward the speaker box 3, The sound emitting part 5 is sleeved in the sliding groove 40, that is, the sleeve opening 5130 is sleeved in the sliding groove 40. The above-mentioned setting of the chute 40 is equivalent to giving way to the sound-producing part 5, and without increasing the overall thickness of the mobile terminal 100, it ensures that the sound-producing part 5 and the sound guide The reliability of the sleeve assembly between the tubes 4; in addition, the sliding groove 40 can guide the movement of the sound emitting part 5, effectively improving the reliability of its extension and retraction.

That is to say, when the speaker box 3 is working, the driving motor 6 drives the sound emitting part 5 to extend out of the receiving space 10, that is, the sound port 52 extends out of the receiving space 10 and In communication with the outside air, the speaker box 3 generates sound through the sound outlet 31, the sound guide tube 4, and the sound port 52 in turn. The sound port 52 is set toward the screen 2 to realize the screen Side sound structure, the screen side sound structure is arranged on the side of the screen 2 without slits on the screen, which releases the design of the screen 2, thereby providing conditions for the mobile terminal 100 to implement a full-screen structure; At the same time, the design of the sound port 52 is not restricted by the narrow slits of the entire screen, so that the acoustic performance of the mobile terminal 100 is not restricted by the slits, which effectively optimizes the acoustic performance of the mobile terminal 100.

Please refer to FIG. 7, curve a is the acoustic performance curve diagram of the mobile terminal of the present invention, and curve b is the acoustic performance curve diagram of the prior art mobile terminal. It can be seen from FIG. 7 that the acoustic performance of the mobile terminal 100 with sound on the screen side of the full-screen structure of the present invention is stable.

When the speaker box 3 is not working, when the driving motor 6 drives the sound emitting part 5 to retract into the accommodation space 10, that is, the sound port 52 retracts into the accommodation space 10. At this time, the sound port 52 can abut against the screen 2, that is, at this time, the upper surface wall 511 and the lower surface wall 512 abut against the screen 2 and the bottom of the housing 1, respectively. Wall 11. This structural design allows the speaker box 3 to be integrated with the camera and other devices and realize the full screen structure of the whole machine.

More preferably, when the sound emitting part 5 is retracted into the receiving space 10, the sound emitting part 5 is completely contained in the sound emitting slide 14 and the sound emitting part 5 is far away from the speaker box One side of 3 is flush with the opening 13, which improves the overall beauty of the appearance of the mobile terminal 100.

The above are only the embodiments of the present utility model. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the inventive concept of the present utility model, but these all belong to The scope of protection of the utility model.

Claims

A mobile terminal includes a housing, a screen that is covered on the housing and encloses a housing space with the housing, and a speaker box installed and fixed in the housing space. The speaker box is provided with The sound outlet is characterized in that the housing includes a bottom wall, a side wall bent and extended from the periphery of the bottom wall, and an opening provided through the side wall, the screen cover is supported on the side wall, and The sound outlet is opened toward the side wall; the mobile terminal further includes a sound guide tube fixed to the speaker box and communicated with the sound outlet, a sound outlet sleeved on the sound guide tube, and an installation A drive motor in the containing space; the sound emitting portion includes a hollow shell and a sound port penetrating through the shell, the shell is sleeved at one end of the sound guide tube away from the speaker box , And make the sound port communicate with the sound guide tube, and the sound port is opened toward the screen; the driving motor is connected with the sound emitting part to drive the sound emitting part along the sound guide tube Move, and make the sound emitting part extend out of the containing space or retract into the containing space through the opening.
The mobile terminal according to claim 1, wherein the housing further comprises a sound chute extending from the bottom wall and formed in the receiving space, and the sound chute is aligned with the opening. For the arrangement, the speaker box and the sound guide tube are fixed in the sound emitting slide, and the sound emitting part slides along the axial direction of the sound slide.
The mobile terminal according to claim 2, wherein when the sound emitting part is retracted into the accommodating space, the sound emitting part is completely accommodated in the sound emitting slide and the sound emitting part is far away One side of the speaker box is flush with the opening.
The mobile terminal according to claim 1, wherein the housing includes an upper surface wall close to the screen, a lower surface wall disposed opposite to the upper surface wall, and a connection between the upper surface wall and the The side surface wall of the lower surface wall, the sound port is opened on the upper surface wall, and the side surface wall is provided with a sleeve opening and sleeved on the sound guide tube.
The mobile terminal according to claim 1, wherein the outer surface of the sound guide tube is recessed to form a sliding groove, and the sliding groove is moved from an end of the sound guide tube close to the sound port to the speaker box Extending in the direction of, the sound emitting part is sleeved in the sliding groove.
The mobile terminal according to claim 1, wherein the sound output direction of the sound port is perpendicular to the screen.
The mobile terminal according to claim 1, wherein the driving motor is a stepping motor.