WO2020001382A1

WO2020001382A1 - Electronic device

Info

Publication number: WO2020001382A1
Application number: PCT/CN2019/092278
Authority: WO
Inventors: 程心坤; 王志远
Original assignee: 维沃移动通信有限公司
Priority date: 2018-06-29
Filing date: 2019-06-21
Publication date: 2020-01-02
Also published as: CN108882124B; CN108882124A

Abstract

Provided in the present disclosure is an electronic device, comprising a housing provided with an accommodating space and, accommodated within the accommodating space, a first printed circuit board, a second printed circuit board, a first speaker unit, and a second speaker unit. The accommodating space comprises a first space and a second space. The first space is the space between the first printed circuit board and a cover plate of the housing. The second space is the space between the second printed circuit board and the cover plate of the housing. The first speaker unit and the second speaker unit are provided at an interval. A rear cavity of the first speaker unit comprises the first space. A rear cavity of the second speaker unit comprises the second space.

Description

Electronic equipment

Cross-reference to related applications

This application claims the priority of Chinese Patent Application No. 201810698692.X filed in China on June 29, 2018, the entire contents of which are hereby incorporated by reference.

Technical field

The present disclosure relates to the field of electronic technology, and in particular, to an electronic device.

Background technique

With the intelligentization of electronic devices and the gradual enrichment of application functions on electronic devices, electronic devices are not only a communication device for users, but also an important choice for entertainment activities such as listening to music and watching movies. In these entertainment activities, electronic devices can create a three-dimensional sound atmosphere for users by emitting stereo sound.

At least two speaker modules and various stacked devices are housed in a housing having a receiving space in the electronic device, and the at least two speaker modules collectively emit sound to form a stereo sound. The speaker module in the electronic device in the related art has a large volume, occupies a large proportion in a limited storage space of the electronic device, and has a problem of low utilization rate of the storage space in the electronic device.

Summary of the invention

An embodiment of the present disclosure provides an electronic device to solve the problem of low utilization rate of a storage space in the electronic device.

In order to solve the above technical problems, the present disclosure is implemented as follows:

An embodiment of the present disclosure provides an electronic device including a housing having a receiving space, and a first printed circuit board, a second printed circuit board, a first speaker unit, and a second speaker unit received in the receiving space; The receiving space includes a first space and a second space, the first space is a space between the first printed circuit board facing the cover plate of the housing, and the second space is the second space A printed circuit board faces a space between the cover plates of the housing; the first speaker unit is spaced from the second speaker unit, and a rear cavity of the first speaker unit includes the first Space, the rear cavity of the second speaker unit includes the second space.

In the embodiment of the present disclosure, the electronic device includes a housing having a receiving space, and a first printed circuit board, a second printed circuit board, a first speaker unit, and a second speaker unit received in the receiving space; The receiving space includes a first space and a second space, the first space is a space between the first printed circuit board facing the cover plate of the housing, and the second space is the second printed circuit The plate faces a space between the cover plates of the housing; the first speaker unit is spaced from the second speaker unit, and a rear cavity of the first speaker unit includes the first space, The rear cavity of the second speaker unit includes the second space. In this way, by using a part of the space inside the electronic device as the back cavity of the speaker, there is no need to separately set the back cavity for the speaker, reducing the volume occupied by the speaker in the limited accommodation space of the electronic device, thereby leaving more installation for other electronic devices. Space to improve the utilization rate of the storage space in the electronic equipment.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to explain the technical solutions of the embodiments of the present disclosure more clearly, the drawings used in the description of the embodiments of the present disclosure will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without paying creative labor.

FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

Fig. 2 is a sectional view taken along the line A-A in Fig. 1;

3 is a schematic structural diagram of another electronic device according to an embodiment of the present disclosure;

4 is a sectional view taken along the line B-B in FIG. 3;

5 is a schematic structural diagram of another electronic device according to an embodiment of the present disclosure;

Fig. 6 is a sectional view taken along the line C-C in Fig. 5;

7 is a schematic structural diagram of another electronic device according to an embodiment of the present disclosure;

8 is a sectional view taken along the line D-D in FIG. 7;

FIG. 9 is a schematic diagram of an installation structure of a first speaker unit in another electronic device according to an embodiment of the present disclosure.

detailed description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, but not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

Please refer to FIG. 1 and FIG. 2 at the same time. An embodiment of the present disclosure provides an electronic device including a housing 110 having a receiving space, and a first printed circuit board 120, a second printed circuit board 130, A first speaker unit 140 and a second speaker unit 150; the receiving space includes a first space 210 and a second space 220, and the first space 210 is the first printed circuit board 120 facing the housing A space between the cover plates of 110, the second space 220 is a space between the second printed circuit board 130 facing the cover plate of the housing 110; the first speaker unit 140 and the The second speaker unit 150 is disposed at intervals. The rear cavity of the first speaker unit 140 includes the first space 210, and the rear cavity of the second speaker unit 150 includes the second space 220.

By using part of the internal space of the electronic device as the rear cavity of the speaker, there is no need to separately set the rear cavity for the speaker, reducing the volume occupied by the speaker in the limited accommodation space of the electronic device, thereby leaving more installation space for other electronic devices. Improve the utilization rate of the storage space in the electronic equipment.

The electronic device has at least two speaker units, and the two speaker units are respectively arranged at different positions, wherein one speaker unit is used to output the left channel sound and the other speaker unit is used to output the right channel sound. , So that at least two speaker units output stereo sound together. In this embodiment, one of the first speaker unit 140 and the second speaker unit 150 outputs the sound of the left channel, and the other outputs the sound of the right channel.

In this embodiment, the first speaker unit 140 is electrically connected to the first printed circuit board 120, and the second speaker unit 150 is electrically connected to the second printed circuit board 130. In other embodiments, the connection relationship between the first speaker unit 140 and the second printed circuit board 130 being electrically connected and the second speaker unit 150 and the first printed circuit board 120 being electrically connected may not be limited in this disclosure. .

In this embodiment, the first space 210 is a space between the first printed circuit board 120 and the cover plate of the housing 110, and a sealing foam can be passed between the first printed circuit board 120 and the cover plate of the housing 110. Or the sealant is used for sealing connection, so that the sealing connection, the first printed circuit board 120, the cover plate of the housing 110, and the rear side of the first speaker unit 140 collectively surround a first space 210, and the first space 210 serves as a first A rear cavity of a speaker unit 140. The faces in the embodiments of the present disclosure may be directly opposite or diagonally opposite. For example, the space where the first printed circuit board 120 faces the cover plate of the housing 110 may be understood as the first printed circuit board 120 is facing the shell. The space of the cover plate of the body 110 can also be understood as the space of the first printed circuit board 120 diagonally facing the cover plate of the housing 110.

Similarly, the second space 220 is a space between the second printed circuit board 130 and the cover plate of the housing 110, and the second printed circuit board 130 and the cover plate of the housing 110 can be sealed with a foam or a seal. Glue to perform a sealed connection, so that the sealed connection, the second printed circuit board 130, the cover plate of the housing 110, and the rear side of the second speaker unit 150 together form a second space 220, and the second space 220 serves as a second speaker The back cavity of the monomer 150.

It should be noted that the front side of the first speaker unit 140 is the side of the first speaker unit 140 facing the front cavity, and the rear side of the first speaker unit 140 is the side of the first speaker unit 140 facing the rear cavity. One side; the front side of the second speaker unit 150 is the side of the second speaker unit 150 facing its front cavity, and the rear side of the second speaker unit 150 is the side of the second speaker unit 150 facing its rear cavity . In addition, the cover plate in the embodiment of the present disclosure may be the front cover of the housing 110 of the electronic device, and may also be the rear cover of the housing 110. The figures in the embodiment of the present disclosure are only described for the rear cover, but should not be used. This is the limit.

In this embodiment, the first speaker unit 140 and the second speaker unit 150 are respectively disposed on the top and the bottom of the electronic device. As shown in FIG. 1, in other embodiments of the present disclosure, the first speaker unit 140 and The second speaker unit 150 may be disposed at the top / bottom of the electronic device at intervals, or may be disposed at other different positions, which is not limited in the present disclosure. In this embodiment, the speaker module provided on the top in the related art is replaced with a speaker unit with a smaller size, thereby allowing space for an electronic device to install an infrared sensor, a camera, and other devices on the top.

Optionally, a battery 160 is provided in the receiving space, and the battery 160 is located between the first printed circuit board 120 and the second printed circuit board 130.

In this embodiment, the first speaker unit 140 and the first printed circuit board 120 are both disposed on the top side of the battery 160, and the second speaker unit 150 and the second printed circuit board 130 are both disposed on the bottom end of the battery 160. On the other hand, as shown in FIG. 1, the distance between the two speaker units on the electronic device is maximized, and the sound of the left channel and the sound of the right channel are prevented from interfering with each other, thereby improving the stereo effect of the output of the electronic device.

Optionally, please refer to FIG. 3 and FIG. 4, the receiving space further includes a third space 230. The third space 230 is a space between the battery 160 facing the cover plate of the housing 110. The receiving space is further provided with a first seal 171 and a second seal 172, wherein the first seal 171 is disposed between the first space 210 and the third space 230, and the second A seal 172 is disposed between the second space 220 and the third space 230.

In the embodiment shown in FIG. 4, the first seal 171 and the second seal 172 are both disposed on the side of the cover plate of the battery 160 facing the housing 110, and the first seal 171 is disposed on the battery 160 near the first speaker unit. At one end of 140, the second seal 172 is disposed at one end of the battery 160 near the second speaker unit 150.

In the embodiment shown in FIG. 4, the rear cavity of the first speaker unit 140 includes a first space 210 and a gap between the first space 210 and the first seal 171. Similarly, the rear cavity of the second speaker unit 150 includes a gap between the second space 220 and the second seal 220 of the second space 220.

Since the battery 160 generates heat during the operation of the electronic device, in order to avoid the heat from damaging the first seal 171 and the second seal 172, the first seal 171 and the second seal 172 are spaced apart from the battery 160. That is, the first sealing member 171 is disposed in the gap between the battery 160 and the first printed circuit board 120, and the second sealing member 172 is disposed in the gap between the battery 160 and the second printed circuit board 130, thereby realizing the first speaker unit. The tightness of the rear cavity of the body 140 and the second speaker unit 150.

Further, the volume of the first space 210 is equal to the volume of the second space 220.

Since a large number of electronic devices need to be arranged in the limited accommodation space of the electronic device, and the arrangement density between the devices in the accommodation space is high, the gap between the first printed circuit board 120 and the first seal 171 is small. The gap is a part of the rear cavity of the first speaker unit 140, and the influence on the sound is negligible. The influence of the rear cavity of the first speaker unit 140 on the sound mainly depends on the volume of the first space 210. Similarly, the gap between the second printed circuit board 130 and the second sealing member 172 is also small, and the influence of the rear cavity of the second speaker unit 150 on sound mainly depends on the volume of the second space 220.

By designing the volume of the first space 210 to be equal to the volume of the second space 220, the sound from the first speaker unit 140 and the sound from the second speaker unit 150 are balanced, and the stereo balance from the electronic device is improved. effect.

In the embodiment of the present disclosure, the first seal 171 and the second seal 172 are both foam. Foam has the characteristics of good elasticity, light weight, good flexibility, thin volume and good sealing performance. Foam can not only ensure the sealing performance, but also reduce the weight of electronic equipment, and reduce the difficulty of sealing and installing electronic equipment.

Optionally, referring to FIG. 5 and FIG. 6 at the same time, the receiving space further includes a third space 230, and the third space 230 is a space between the battery 160 facing the cover plate of the housing 110, A third seal 173 is provided in the third space 230, and the third seal 173 is used to divide the third space 230 into a first subspace 231 and a second subspace 232 which are separated from each other. The first subspace 231 is in communication with the first space 210, and the second subspace 232 is in communication with the second space 220.

In the embodiment shown in FIG. 6, the third seal 173 is disposed on a side of the battery 160 facing the cover plate of the casing 110, and the third seal 173 is sealedly connected to the cover plate of the casing 110 and the battery, respectively, thereby The third space 230 is divided into a first subspace 231 and a second subspace 232. Because the battery 160 generates heat during the operation of the electronic device, the third sealing member 173 needs to have better heat resistance. The material of the third sealing member 173 may be a high-temperature resistant material such as silicone rubber or butyl rubber.

In the embodiment shown in FIG. 6, the rear cavity of the first speaker unit 140 includes a first space 210, a gap between the first space 210 and the first subspace 231, and a first subspace 231. The rear cavity of the second speaker unit 150 includes a second space 220, a gap between the second space 220 and the second subspace 232, and a second subspace 232. By disposing the third seal 173 on the battery 160, the rear cavity of the first speaker unit 140 and the second speaker unit 150 is increased by a portion of the third space 230, thereby increasing the first speaker unit 140 and The volume of the rear cavity of the second speaker unit 150 not only improves the utilization rate of the accommodation space in the electronic device, but also optimizes the stereo sound quality of the electronic device.

Further, the sum of the volumes of the first subspace 231 and the first space 210 is equal to the sum of the volumes of the second subspace 232 and the second space 220.

Because a large number of electronic devices need to be arranged in the limited accommodation space of the electronic device, and the arrangement density between the devices in the accommodation space is high, the gap between the first space 210 and the first subspace 231 is small. A part of the rear cavity of the first speaker unit 140 has a negligible effect on the sound. The effect of the rear cavity of the first speaker unit 140 on the sound mainly depends on the volume of the first space 210 and the first subspace 231. Similarly, the influence of the rear cavity of the second speaker unit 150 on the sound mainly depends on the volume of the second space 220 and the second subspace 232.

By designing the sum of the volumes of the first space 210 and the first subspace 231 to be equal to the sum of the volumes of the second space 220 and the second subspace 232, the sound emitted by the first speaker unit 140 and the second speaker are made equal. The sound emitted by the unit 150 is balanced, which improves the stereo balance effect of the electronic device.

Optionally, referring to FIG. 7 and FIG. 8 at the same time, the receiving space includes a third space 230, and the third space 230 is a space between the battery 160 facing the cover plate of the housing 110, so The first space 210, the second space 220, and the third space 230 communicate with each other.

In the embodiment shown in FIG. 8, the first space 210, the third space 230, and the second space 220 communicate with each other to form a sealed cavity, and the first speaker unit 140 and the second speaker unit 150 share the sealed cavity as the rear cavity. The volume of the rear cavity of the two speaker units is the same, which improves the stereo balance effect of the electronic device. In addition, the volume of the rear cavity of the two speaker units has been increased, further improving the stereo sound quality of the electronic equipment.

Optionally, a leak hole is opened on the cover plate of the housing 110, and the leak hole faces a gap between the first printed circuit board 120 and the battery 160.

The leak hole is used to connect the rear cavity space of the first speaker unit 140 and the external space. When the rear cavity of the first speaker unit 140 is subjected to vibration of the diaphragm, thermal expansion and contraction, etc., it can be balanced when the pressure of the rear cavity changes. The air pressure in the cavity ensures the high sound quality of the sound produced by the electronic device.

The leakage hole is provided on the cover plate, and the position faces the gap between the first printed circuit board 120 and the battery 160, so as to avoid clogging the leakage hole with a smaller caliber, and further ensure the sound emitted by the electronic device. High sound quality.

Optionally, please refer to FIG. 2 again, the housing 110 is provided with a sound outlet hole, and a housing 180 is also provided in the accommodation space, and a sound outlet channel is provided in the housing 180, and the sound outlet channel The first end is connected to the front cavity of the first speaker unit 140, and the second end of the sound output channel is connected to the sound output hole.

The front cavity of the first speaker unit 140 is a sound emitting cavity, and the sound emitted from the front cavity is transmitted to the sound emitting hole on the casing 110 through the sound output channel in the frame 180 to realize the sound being released.

Please refer to FIG. 4 again. In the gap between the battery 160 and the first printed circuit board 120, the first seal 171 is disposed in the gap between the battery 160 and the second printed circuit board 130. In the case, the frame 180 may be provided with a sill located between a gap between the first printed circuit board 120 and the battery 160 and a gap between the second printed circuit board 130 and the battery 160, and the first seal 171 and the second seal The pieces 172 are sealingly connected to the perimeter bone and the cover plate respectively, so as to seal the rear cavity of the first speaker unit 140 and the second speaker unit 150.

Further, referring to FIG. 9, the first speaker unit 140 is located between the frame body 180 and the first printed circuit board 120, and the first speaker unit 140 and the outside of the frame body 180 The surface is hermetically connected, and the first speaker unit 140 is hermetically connected to an outer surface of the first printed circuit board 120.

When the first speaker unit 140 is not provided, the first space 210 is in communication with the sound output channel. The first speaker unit 140 is sealed between the frame body 180 and the first printed circuit board 120, thereby blocking the first speaker unit 140. The first space 210 and the sound output channel form a front cavity space and a rear cavity space separated from each other by the first speaker unit 140. In the embodiment of the present disclosure, the arrangement of the speaker unit is simple, which facilitates the fixed installation of the speaker unit.

When the distance between the frame body 180 and the first printed circuit board 120 is large, the sealed connection between the first speaker unit 140 and the frame body 180 can be achieved by using foam.

The electronic device in the embodiment of the present disclosure may include at least one of a mobile phone, a tablet computer, an e-book reader, an MP3 player, an MP4 player, and a digital camera.

The above are only specific implementations of the present disclosure, but the scope of protection of the present disclosure is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present disclosure, which should be covered in Within the scope of this disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

An electronic device includes a casing having a receiving space, and a first printed circuit board, a second printed circuit board, a first speaker unit, and a second speaker unit received in the receiving space; the receiving space includes A first space and a second space, the first space being a space between the first printed circuit board facing the cover plate of the housing, and the second space being a second printed circuit board facing A space between the cover plates of the housing; the first speaker unit and the second speaker unit are spaced apart, and a rear cavity of the first speaker unit includes the first space and the second speaker The rear cavity of the unit includes the second space.
The electronic device according to claim 1, wherein a battery is disposed in the accommodation space, and the battery is located between the first printed circuit board and the second printed circuit board.
The electronic device according to claim 2, wherein the storage space further comprises a third space, the third space being a space between the battery facing the cover plate of the casing, and the storage space A first seal and a second seal are also provided, wherein the first seal is provided between the first space and the third space, and the second seal is provided in the second space And the third space.
The electronic device according to claim 3, wherein a volume of the first space is equal to a volume of the second space.
The electronic device according to claim 3, wherein the first seal and the second seal are both foam.
The electronic device according to claim 2, wherein the receiving space further comprises a third space, the third space being a space between the battery facing the cover plate of the housing, and the third space A third seal is provided therein, the third seal is used to divide the third space into a first subspace and a second subspace that are separated from each other, and the first subspace is in communication with the first space , The second subspace is in communication with the second space.
The electronic device according to claim 6, wherein a sum of volumes of the first subspace and the first space is equal to a sum of volumes of the second subspace and the second space.
The electronic device according to claim 1, wherein the storage space further comprises a third space, the third space being a space between the battery facing the cover plate of the housing, and the first space The second space and the third space communicate with each other.
The electronic device according to claim 2, wherein a leak hole is opened in a cover plate of the housing, and the leak hole faces a gap between the first printed circuit board and the battery.
The electronic device according to any one of claims 1-9, wherein the housing is provided with a sound outlet hole, and a housing is also provided in the accommodation space, and a sound outlet channel is provided in the housing. A first end of the sound output channel is in communication with a front cavity of the first speaker unit, and a second end of the sound output channel is in communication with the sound output hole.
The electronic device according to claim 10, wherein the first speaker unit is located between the frame and the first printed circuit board, and the first speaker unit and an outer surface of the frame The first speaker unit is hermetically connected to the outer surface of the first printed circuit board.