CN216356802U

CN216356802U - Mobile terminal equipment

Info

Publication number: CN216356802U
Application number: CN202122614219.9U
Authority: CN
Inventors: 蔡晓东; 刘松; 田烨
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-04-19
Anticipated expiration: 2031-10-28

Abstract

The utility model discloses mobile terminal equipment, which comprises a shell with an accommodating cavity, a first sound outlet, a second sound outlet, a third sound outlet, a first loudspeaker, a second loudspeaker and a third loudspeaker, wherein the first sound outlet, the second sound outlet and the third sound outlet are arranged in the shell; the first loudspeaker radiates sound waves outwards through the first sound outlet, the second loudspeaker radiates sound waves outwards through the second sound outlet, and the third loudspeaker radiates sound waves outwards through the third sound outlet. Compared with the related art, the mobile terminal equipment provided by the utility model can realize better stereo effect when being placed outside and reduce the risk of sound leakage when a user answers a call.

Description

Mobile terminal equipment

Technical Field

The utility model relates to the technical field of acoustic equipment, in particular to mobile terminal equipment.

Background

Mobile terminal devices such as smart phones and the like usually have two speakers, one of which has high sensitivity and good high frequency response, and therefore, is often used as a loudspeaker (generally called a speaker or a loudspeaker) for playing ring tones or music; the other speaker has low sensitivity and good low frequency response and is therefore often used as an earpiece in a telephone call (commonly referred to as a receiver or a receiver).

The stereo playing effect of the current mobile terminal equipment is often unsatisfactory, and when the mobile terminal equipment is used near the ear of a user, such as answering a call, the problem of sound leakage generally exists, which is very unfavorable for protecting personal privacy.

Disclosure of Invention

In view of the above disadvantages, an object of the present invention is to provide a mobile terminal device, which aims to improve a stereo effect when the mobile terminal device implements a play-out function, and simultaneously reduce a risk of sound leakage when the mobile terminal device implements a receiver function.

To solve the above technical problems, the present invention is achieved by a mobile terminal device including

The housing is provided with a containing cavity, and the housing is provided with a first sound outlet hole, a second sound outlet hole and a third sound outlet hole, wherein the first sound outlet hole and the second sound outlet hole are adjacent to each other, and the third sound outlet hole is far away from the first sound outlet hole and the second sound outlet hole;

the first loudspeaker and the second loudspeaker are accommodated at one end of the accommodating cavity, the first loudspeaker radiates sound waves outwards through the first sound outlet, and the second loudspeaker radiates sound waves outwards through the second sound outlet;

the third loudspeaker is positioned at one end of the accommodating cavity, which is far away from the first loudspeaker and the second loudspeaker, and radiates sound waves outwards through the third sound outlet; wherein the content of the first and second substances,

when the mobile terminal device is in a play-out mode, the first loudspeaker and the second loudspeaker respectively radiate sound waves with the same phase outwards, and the sound waves radiated by the third loudspeaker form a stereo effect;

when the mobile terminal device is in an earphone mode, the first sound outlet hole is close to an ear hole of a user, the distance from the second sound outlet hole to the ear hole is larger than the distance from the first sound outlet hole to the ear hole, and the first loudspeaker and the second loudspeaker respectively radiate sound waves with opposite phases outwards. Preferably, the housing includes a front surface and a back surface which are oppositely disposed, and a side surface which connects the front surface and the back surface, the front surface is a screen display surface, the first sound outlet hole is provided at the front surface or the junction of the front surface and the side surface, and the second sound outlet hole is provided at the junction of the side surface or the back surface and the side surface.

Preferably, the mobile terminal device has a top and a bottom opposite to each other, the first sound outlet and the second sound outlet are both located at the top, and the third sound outlet is located at the bottom.

Preferably, the first sound outlet hole is located in a central region of the top portion, and the second sound outlet hole is disposed adjacent to the first sound outlet hole.

Preferably, a first diaphragm of the first speaker is disposed toward the front surface, a first front sound cavity is formed between the first diaphragm and the front surface, and the first front sound cavity is communicated with the first sound outlet.

Preferably, a housing wall of the housing is provided with a bent first sound outlet channel, and the first front sound cavity is communicated with the first sound outlet hole through the first sound outlet channel.

Preferably, a second diaphragm of the second speaker is disposed toward the back surface, a second front acoustic cavity is formed between the second diaphragm and the back surface, and the second front acoustic cavity is communicated with the second sound outlet.

Preferably, a housing wall of the housing is provided with a second bent sound outlet channel, and the second front sound cavity is communicated with the second sound outlet hole through the second sound outlet channel.

Preferably, the first speaker includes a first module housing and a first sound-emitting unit, the first module housing is provided with a first sound-emitting channel, the first sound-emitting unit is mounted to the first module housing and forms a first front sound cavity therebetween, the first front sound cavity is communicated with the first sound-emitting channel, and the first sound-emitting channel abuts against the first sound-emitting hole.

Preferably, the second speaker includes second module casing and second sound production monomer, the second module casing is equipped with the second and goes out the sound passageway, the second sound production monomer install in the second module casing and form the preceding sound chamber of second between the two, preceding sound chamber of second with the second goes out the sound passageway intercommunication, the second go out the sound passageway with the second goes out the sound hole butt.

Compared with the prior art, the mobile terminal equipment has the advantages that:

1. when the mobile terminal equipment is in a play mode, the first loudspeaker and the second loudspeaker respectively radiate sound waves with the same phase outwards, the sound waves can be regarded as sound sources with the same phase point in a far field, sound pressure levels of the sound waves are superposed after the sound waves pass through the sound outlet holes, loudness is increased, and a perfect stereo effect is formed with a third loudspeaker at the other end of the mobile terminal equipment.

2. When the mobile terminal equipment is in an earphone mode, the first sound outlet is close to an ear hole of a user, the distance from the second sound outlet to the ear hole is larger than the distance from the first sound outlet to the ear hole, sound waves with opposite phases are respectively radiated outwards by the first loudspeaker and the second loudspeaker, the sound waves can be regarded as sound sources with opposite phase points under a near field, sound pressure levels of the sound waves are reduced after the sound waves pass through the respective sound outlets, leakage quantity near the ear of the user is reduced, and conversation privacy of the user is protected.

Drawings

Fig. 1 is a schematic diagram of the position of a speaker in the mobile terminal device according to the present invention.

Fig. 2 is a schematic top structure diagram of the mobile terminal device of the present invention.

Fig. 3 is a schematic top view of a mobile terminal according to the present invention.

Fig. 4 is a cross-sectional view of a top speaker of the mobile terminal device of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

Also, the meaning of "and/or" and/or "appearing throughout is meant to encompass three scenarios, exemplified by" A and/or B "including scenario A, or scenario B, or scenarios where both A and B are satisfied.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a mobile terminal device 100, and the mobile terminal device 100 may be a smart phone, a smart watch, and the like.

In conjunction with fig. 1 to 4, the present invention discloses a mobile terminal device 100, the mobile terminal device 100 comprising a housing 10, a first speaker 20, a second speaker 30 and a third speaker 40. Wherein the housing 10 has a receiving cavity, and the shape of the housing 10 is not particularly limited. In this embodiment, the housing 10 may have a square shape. In order to realize the multi-functional sound effect of the mobile terminal device 100, the housing 10 accommodates the first speaker 20, the second speaker 30 and the third speaker 40, the first speaker 20 and the second speaker 30 are accommodated in the same end of the accommodating cavity, and the third speaker 40 is located at the other end of the accommodating cavity far from the first speaker 20 and the second speaker 30. It can be understood that the housing 10 is correspondingly provided with a first sound outlet 111, a second sound outlet 131 and a third sound outlet (not shown in the figure), the first sound outlet 111 and the second sound outlet 131 are adjacent to each other, the third sound outlet is located at an end of the housing 10 away from the first sound outlet 111 and the second sound outlet 131, the first speaker 20 radiates sound waves outwards through the first sound outlet 111, the second speaker 30 radiates sound waves outwards through the second sound outlet 131, and the third speaker 40 radiates sound waves outwards through the third sound outlet.

When the mobile terminal apparatus 100 is in the play-out mode, the first speaker 20 and the second speaker 30 each radiate sound waves of the same phase outward, forming a stereo effect with the sound waves radiated by the third speaker 40; when the mobile terminal device 100 is in the earpiece mode, the first sound outlet 111 is close to the ear hole of the user, the distance from the second sound outlet 131 to the ear hole is greater than the distance from the first sound outlet 111 to the ear hole, and the first speaker 20 and the second speaker 30 each radiate sound waves of opposite phases outward.

Therefore, when the mobile terminal device 100 is in the play mode, the first speaker 20 and the second speaker 30 radiate sound waves with the same phase outwards through the corresponding first sound outlet 111 and the corresponding second sound outlet 131, and after the sound waves flow out through the first sound outlet 111 and the corresponding second sound outlet 131, the sound waves can be regarded as sound sources with the same phase point in a far field, and the sound pressure levels of the sound sources and the sound pressure level of the sound waves are superposed, so that the loudness is increased, and a perfect stereo effect is formed by matching the third speaker 40 in the mobile terminal device 100. While in the earpiece mode the first loudspeaker 20 and the second loudspeaker 30 receive opposite phase signals, an acoustic dipole effect can be created for people around the user. Specifically, the distance between the first sound outlet 111 and the second sound outlet 131 is negligible, the distances from the first sound outlet 111 and the second sound outlet 131 to the ears of the surrounding people are close, and the sound waves with opposite phases of the two speakers reach the ears of the surrounding people to be offset, so that the purpose of reducing the sound leakage is achieved. For the user, the first sound outlet 111 is close to the ear of the user, the second sound outlet 131 is far away from the ear of the user relative to the first sound outlet 111, the distance between the first sound outlet 111 and the second sound outlet 131 to the ear of the user is relatively large, the condition of the dipole effect is not satisfied, the sound wave cancellation degree is small, and therefore the loudness of the sound heard by the user is not changed. And because two loudspeakers work independently, so can adjust parameters such as signal and voltage of two loudspeakers at will, in order to reach best conversation and privacy protection effect.

In the technical solution of the present invention, as shown in fig. 1 to 4, a housing 10 of a mobile terminal device 100 includes a front surface 11, a back surface 12 opposite to the front surface 11, and a side surface 13 connecting the front surface 11 and the back surface 12, where the front surface 11 is a screen display surface, and the screen may be a conventional display screen or a touch screen. Specifically, the back surface 12 and the side surface 13 may be integrally formed of the same material, or may be formed of the same or different materials and then assembled together. The front 11 is provided with a first sound outlet 111, the side 13 is provided with a second sound outlet 131, or the joint of the front 11 and the side 13 is provided with the first sound outlet 111, and the joint of the back 12 and the side 13 is provided with the second sound outlet 131, so that the first sound outlet 111 and the second sound outlet 131 are adjacent. The first sound outlet hole 111 and the second sound outlet hole 131 may be in the form of one hole or a plurality of micro holes side by side. In this embodiment, the first sound outlet 111 is disposed on the screen display surface, and when the user answers the phone call, the first sound outlet 111 is close to the ear of the user and is used as a sound outlet of the receiver; the second sound outlet 131 is provided on the side 13, and functions as a loud speaker sound outlet when the mobile terminal device 100 is in the loud mode. When the mobile terminal device 100 is a smart phone, the sound hole is disposed in a manner more suitable for the usage habit of the user.

Further, when the mobile terminal device 100 is square, it has a top and a bottom opposite to each other, in this embodiment, since the first speaker 10 and the second speaker 20 are both located at one end of the accommodating cavity, the first sound outlet 111 and the second sound outlet 131 are preferably located in a top area of the mobile terminal device 100, and further, the third sound outlet is located in a bottom area, that is, the third sound outlet is located at one end of the housing 10 far away from the first sound outlet 111 and the second sound outlet 131. The first sound outlet hole 111 and the second sound outlet hole 131 are both disposed in the top area, so as to occupy the space of the front surface 11 or the back surface 12 of the mobile terminal device 100 to the minimum extent, which can make the mobile terminal device 100 more beautiful in appearance, maximize the screen, and facilitate the realization of stereo sound.

Further, the first sound outlet hole 111 is located at the center region of the top, and the second sound outlet hole 131 is disposed adjacent to the first sound outlet hole 111. The second sound outlet 131 is disposed on the side 13 of the mobile terminal device 100, and may be disposed opposite to the first sound outlet 111, or may be disposed on two opposite sides of the first sound outlet 111 and adjacent to the first sound outlet 111. The first sound outlet hole 111 and the second sound outlet hole 131 are close to each other, and an acoustic dipole is more easily formed. The distances of the sound waves of the first speaker 20 and the second speaker 30 to the people around the user are approximately the same for the people around the user. Due to the action of the superposition of the sound waves, people around cannot clearly hear the sound waves emitted by the mobile terminal device 100, and the leakage reduction action of the mobile terminal device 100 is good.

In the technical solution of the present invention, the first speaker 20 and the second speaker 30 may be installed in opposite directions, as shown in fig. 3, a first diaphragm (not labeled) of the first speaker 20 faces the front side 11 of the mobile terminal device 100, and a second diaphragm (not labeled) of the second speaker 30 faces the back side 12 of the mobile terminal device 100, so that the two

speakers

20 and 30 may be installed independently, and occupy less internal volume of the mobile terminal device 100.

As shown in fig. 4, in the technical solution of the present invention, a first mounting platform is formed on the front surface 11 of the mobile terminal device 100, the first mounting platform supports a first diaphragm side of the first speaker 20, a first front sound cavity 21 is formed between the first diaphragm and the front surface 11 of the mobile terminal device 100, a housing wall of the housing 10 of the mobile terminal device 100 is provided with a first bending sound outlet channel, the first sound outlet channel is communicated with the first front sound cavity 21 and the first sound outlet hole 111, sound waves in the first front sound cavity 21 reach the first sound outlet hole 111 through the first sound outlet channel and then radiate outwards, and a radiation path of the sound waves is shown by a dotted arrow in a right diagram in fig. 4. The first sound outlet channel is arranged on the housing wall of the housing 10, so that the design of the first loudspeaker 20 can be more freely released, and the design of the first loudspeaker 20 is more flexible. The first speaker 20 may be provided with or without a sound emitting passage, and the front sound chamber of the first speaker 20 communicates with the first sound emitting hole 111 via the sound emitting passage of the housing wall of the housing 10.

It can be understood that the first speaker 20 may also be provided with a first sound emitting channel, the first speaker 20 includes a first module housing and a first sound emitting unit, the first module housing is provided with the first sound emitting channel, the first sound emitting unit is installed in the first module housing, and a first front sound cavity 21 is formed between the first module housing and the first sound emitting unit, the first front sound cavity 21 is communicated with the first sound emitting channel of the first speaker 20, and the first sound emitting channel abuts against the first sound emitting hole 111. At this time, the first speaker 20 itself forms the first sound emitting channel communicating with the first sound emitting hole 111, so that the housing 10 may not be provided with the first sound emitting channel, and the screen display surface 11 may be a flat plate structure, so that the screen display surface 11 may be made thinner, which is convenient for further thinning of the mobile terminal device 100.

The back 12 of the mobile terminal device 100 is formed with a second mounting platform, the second mounting platform supports a second diaphragm side of the second speaker 30, a second front sound cavity 31 is formed between the second diaphragm and the back 12 of the mobile terminal device 100, the back 12 of the mobile terminal device 100 is provided with a second sound outlet channel communicating the second front sound cavity 31 and the second sound outlet hole 131, that is, a bent second sound outlet channel is provided on a housing wall of the back 13 of the housing 10, sound waves in the second front sound cavity 31 reach the second sound outlet hole 131 through the second sound outlet channel and then radiate outwards, and a radiation path of the sound waves is shown by a dashed arrow in the left diagram in fig. 4. Likewise, the second sound outlet channel is provided on the housing wall of the housing 10, so that the design of the second speaker 30 can be more freely released, and the design of the second speaker 30 is more flexible. The second speaker 30 may or may not be provided with a sound emitting channel, and the front sound chamber of the second speaker 30 communicates with the second sound emitting hole 131 via the sound emitting channel of the housing wall of the housing 10.

Further, the second speaker 30 can also be equipped with the second sound channel, the second speaker 30 includes second module casing and second sound monomer, the second module casing is equipped with the second sound channel, the second sound monomer is installed in the second module casing, and, form the preceding sound chamber 31 of second between second module casing and the second sound monomer, the preceding sound chamber 31 of second and the second sound channel intercommunication of second speaker 30, the second sound channel and the second sound hole 131 looks butt of going out. At this time, the second speaker 30 itself forms the second sound emitting channel communicating with the second sound emitting hole 131, so that the second sound emitting channel may not be provided in the housing 10, and the back surface 13 may be a flat plate structure, so that the back surface 13 may be made thinner, which is convenient for further thinning of the mobile terminal device 100.

The first front acoustic cavity 21 and the second front acoustic cavity 31 face the front side 11 and the back side 12 of the mobile terminal device 100, respectively, and are independent from each other, so that the paths of the two front

acoustic cavities

21 and 31 facing the two sound outlet holes 111 and 131 are independent from each other, and when the two

speakers

20 and 30 work simultaneously, the air flows of the two front

acoustic cavities

21 and 31 are prevented from interfering with each other.

Furthermore, a waterproof gasket (not shown) may be disposed between the first speaker 20, the second speaker 30 and the respective mounting platform, and when water exists in the surrounding environment of the mobile terminal device 100, the waterproof gasket may be disposed to block the water in the surrounding environment from moving towards the inside of the mobile terminal device 100, so that the mobile terminal device 100 has better waterproof performance, and the service life of the mobile terminal device 100 is prolonged.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. A mobile terminal device, characterized by comprising

when the mobile terminal device is in an earphone mode, the first sound outlet hole is close to an ear hole of a user, the distance from the second sound outlet hole to the ear hole is larger than the distance from the first sound outlet hole to the ear hole, and the first loudspeaker and the second loudspeaker respectively radiate sound waves with opposite phases outwards.

2. The mobile terminal device according to claim 1, wherein the housing includes a front surface and a back surface that are disposed opposite to each other, and a side surface that connects the front surface and the back surface, the front surface is a screen display surface, the first sound emitting hole is provided at the front surface or a junction between the front surface and the side surface, and the second sound emitting hole is provided at the side surface or a junction between the back surface and the side surface.

3. The mobile terminal device of claim 1, wherein the mobile terminal device has opposing top and bottom portions, the first sound outlet aperture and the second sound outlet aperture both being located at the top portion; the third sound outlet is positioned at the bottom.

4. The mobile terminal device according to claim 3, wherein the first sound outlet is located at a central region of the top portion, and the second sound outlet is disposed adjacent to the first sound outlet.

5. The mobile terminal device of claim 2, wherein the first diaphragm of the first speaker is disposed toward the front surface, and a first front acoustic cavity is formed between the first diaphragm and the front surface, and the first front acoustic cavity communicates with the first sound outlet.

6. Mobile terminal device according to claim 5, wherein a housing wall of the housing is provided with a bent first sound outlet channel, the first front sound chamber being in communication with the first sound outlet hole through the first sound outlet channel.

7. The mobile terminal device of claim 2, wherein the first speaker comprises a first module housing and a first sound-emitting unit, the first module housing being provided with a first sound-emitting channel, the first sound-emitting unit being mounted to the first module housing and forming a first front sound chamber therebetween, the first front sound chamber being in communication with the first sound-emitting channel, the first sound-emitting channel abutting against the first sound-emitting aperture.

8. The mobile terminal device of claim 2, wherein the second diaphragm of the second speaker is disposed toward the back surface, and a second front acoustic cavity is formed between the second diaphragm and the back surface, and the second front acoustic cavity communicates with the second sound outlet.

9. The mobile terminal device according to claim 8, wherein a housing wall of the housing is provided with a bent second sound emitting passage, and the second front sound chamber communicates with the second sound emitting hole through the second sound emitting passage.

10. The mobile terminal device according to claim 2, wherein the second speaker includes a second module case provided with a second sound emitting passage, and a second sound emitting unit mounted to the second module case and forming a second front sound chamber therebetween, the second front sound chamber communicating with the second sound emitting passage, the second sound emitting passage abutting against the second sound emitting hole.