An electronic device

Abstract

The application discloses an electronic device, comprising a shell, a loudspeaker, a first target piece and a second target piece, wherein the shell is formed with a containing space, the shell comprises a cover plate, the second target piece is used for fixing the cover plate to form the containing space of the shell, the loudspeaker is fixedly arranged in the containing space, and the containing space of the shell serves as an acoustic cavity of the loudspeaker. The first target piece comprises a first through hole, the second target piece comprises a second through hole, the second through hole is larger than the first through hole, and the second through hole corresponds to at least one first through hole.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic devices, and in particular to an electronic device. BACKGROUND

[0002] For some electronic devices, such as mobile phones, etc., which are internally provided with loudspeakers, a part of the shell thereof is used as a component of the sound cavity of the loudspeaker for the purpose of realizing stereo sound or due to the limitation of the installation space. However, the electronic device currently has the following deficiencies: the local excessive vibration of the shell is easily caused when the loudspeaker is working, that is, the so-called "shell vibration" phenomenon occurs. The local excessive vibration of the shell not only has an adverse effect on the structural strength, but also affects the holding comfort of the user when the electronic device is a handheld device such as a mobile phone. SUMMARY

[0003] In one aspect, the present application provides the following technical solutions:

[0004] An electronic device, comprising:

[0005] a shell, the shell being formed with a containing space, the shell comprising a cover plate;

[0006] a loudspeaker, fixedly arranged in the containing space, the containing space of the shell serving as a sound cavity of the loudspeaker;

[0007] a first target piece, comprising a first through hole;

[0008] a second target piece, comprising a second through hole, the second through hole being larger than the first through hole, the second through hole corresponding to at least one of the first through holes, the second target piece being used for fixing the cover plate to form the containing space of the shell.

[0009] Optionally, in the above electronic device, the cover plate, the second target piece and the first target piece are laminated to form an air bag with an opening, wherein the air bag comprises the first through hole, the second through hole and the part of the cover plate corresponding to the second through hole.

[0010] Optionally, in the above electronic device, the second through hole is a plurality of.

[0011] Optionally, in the above electronic device, the part of the cover plate corresponding to the second through hole is provided with a rough texture formed by a convex structure or a concave structure.

[0012] Optionally, in the above electronic device, the second target piece is made of a soft material.

[0013] Optionally, in the above electronic device, the cover plate, the second target piece and the first target piece are laminated to a target sound emitting surface of the loudspeaker.

[0014] Optionally, in the electronic device, further comprising:

[0015] a third target member, which is arranged apart from the first target member;

[0016] a filler, which is arranged at the interval between the third target member and the first target member, wherein the sound emitted by the loudspeaker is transmitted from the first through hole into an air bag formed by the first through hole, the second through hole and the portion of the cover plate corresponding to the second through hole through air.

[0017] Optionally, in the electronic device, the first through hole is circular, elliptical or rectangular in shape, and the second through hole is circular, elliptical or rectangular in shape.

[0018] Optionally, in the electronic device, the electronic device is a mobile phone, the loudspeaker is located at the upper portion of the electronic device, and the cover plate is located at the back portion of the electronic device.

[0019] Optionally, in the electronic device, the cover plate is a plastic member. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of the provided drawings.

[0021] Figure 1 is a partial cross-sectional schematic view of an electronic device provided by Embodiment One of the present application;

[0022] Figure 2 is a partial perspective schematic view of an electronic device provided by Embodiment Two of the present application;

[0023] Figure 3 is an exploded schematic view of an electronic device provided by Embodiment Three of the present application;

[0024] Figure 4 is an exploded schematic view of an electronic device provided by Embodiment Four of the present application.

[0025] The reference signs in the drawings are:

[0026] 1, housing; 11, cover plate; 12, middle frame; 2, loudspeaker; 3, first target member; 31, first through hole; 4, second target member; 41, second through hole; 5, battery. DETAILED DESCRIPTION

[0027] The electronic device provided by the application can effectively avoid excessive vibration of the cover plate of the shell when the loudspeaker inside the electronic device works through structural improvement.

[0028] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0029] Referring to Figure 1 The electronic device provided by the embodiment one can be a mobile phone, a sound box, a computer or other devices with a loudspeaker 2 inside. For convenience, the electronic device is embodied as a mobile phone in the drawings. Figure 1 Partially cross-sectional schematic view of the electronic device provided by the embodiment one is shown, Figure 1The up-down direction of the electronic device is the thickness direction of the electronic device, and the electronic device comprises: a shell 1, the shell 1 is formed with a containing space, and the shell 1 comprises a cover plate 11; a loudspeaker 2 is fixedly arranged in the containing space, and the containing space of the shell 1 serves as an acoustic cavity of the loudspeaker 2; a first target piece 3 comprises a first through hole 31; a second target piece 4 comprises a second through hole 41, the second through hole 41 is larger than the first through hole 31, the second through hole 41 corresponds to at least one first through hole 31, and the second target piece 4 is used for fixing the cover plate 11 to form the containing space of the shell 1. The cover plate 11 is part of the overall structure of the shell 1, is fixed by the second target piece 4 to form the containing space of the shell 1, and because the containing space of the shell 1 serves as the acoustic cavity of the loudspeaker 2, when the loudspeaker 2 works, that is, when the loudspeaker 2 emits sound, sound airflow will reach the cover plate 11. The first target piece 3 is a component in the containing space of the shell 1, which can be a mechanical structural piece such as a bracket, or a functional assembly such as a mainboard, that is, the first target piece 3 can be selected from the components inside the electronic device as needed, as long as the first through hole 31 on the first target piece 3 can correspond to the second through hole 41 on the second target piece 4, and the first through hole 31 corresponds to the second through hole 41 means that the sound airflow emitted by the loudspeaker 2 first passes through the first through hole 31 and then passes through the second through hole 41. Because the second through hole 41 is larger than the first through hole 31, the corresponding first through hole 31 and second through hole 41 jointly constitute a channel with varying flow passage cross-sectional dimensions, and when the sound airflow emitted by the loudspeaker 2 reaches the first target piece 3, part of the sound airflow will enter the channel, thereby absorbing part of the energy of the sound airflow by the channel, achieving the purpose of dispersing energy. Compared with the traditional electronic device without the channel, the electronic device of the present application can effectively reduce the vibration amplitude of the cover plate 11 caused by the loudspeaker 2 emitting sound, that is, avoid excessive vibration of the cover plate 11.

[0030] The second through hole 41 corresponds to at least one first through hole 31, which means that the sound airflow can only pass through one first through hole 31 before entering the second through hole 41, or can pass through multiple first through holes 31 at the same time. The shape and size of the first through hole 31 and the second through hole 41 can be set as needed, for example, the shape of the first through hole 31 can be circular, elliptical or rectangular, and similarly, the shape of the second through hole 41 can be circular, elliptical or rectangular. The size of the second through hole 41 can be set to 2-10 times the size of the first through hole 31. See Figure 2 , Figure 2 The figure shows a partial perspective view of the electronic device provided by Embodiment Two, Figure 2 The up-down direction of the electronic device is the length direction of the electronic device, Figure 2 is a perspective view observed from the back of the electronic device, and it should be noted that in order to show the shape and size of the first through hole 31 and the second through hole 41, Figure 2The parts of the electronic device are transparent, that is, the first through holes 31 and the second through holes 41 are located inside the electronic device. In the second embodiment, the second through holes 41 are rectangular in shape and there are seven of them. Five of the second through holes 41 are located to the right of the rear camera module in the figure, and the other two are located below and to the right of the rear camera module in the figure, respectively. Figure 2 As can be seen, the first through hole 31 corresponding to the second through hole 41 located to the lower right of the rear camera module is rectangular in shape, and the first through holes 31 corresponding to the other second through holes 41 are circular in shape. The second through holes 41 are provided in multiple numbers to better disperse and absorb the energy of the sound airflow, which is conducive to further reducing the degree of vibration of the cover plate 11.

[0031] In a preferred embodiment, the cover plate 11, the second target piece 4, and the first target piece 3 are stacked to form an air bag with an opening, wherein the air bag includes the first through holes 31, the second through holes 41, and the portion of the cover plate 11 corresponding to the second through holes 41. Referring to Figure 1 , the second target piece 4 is connected between the cover plate 11 and the first target piece 3, and the axes of the first through holes 31 and the second through holes 41 are parallel to the stacking direction of the cover plate 11, the second target piece 4, and the first target piece 3, that is, Figure 1 the up-down direction in the figure. The inner walls of the first through holes 31, the inner walls of the second through holes 41, and the inner surface of the cover plate 11 corresponding to the second through holes 41 together form an air bag, and the sound airflow emitted by the loudspeaker 2 spreads in the accommodating space of the shell 1 and enters the air bag through the first through holes 31. In order to improve the absorption effect of the air bag on the energy of the sound airflow, in this embodiment, the second target piece 4 is made of a soft material, for example, the second target piece 4 can be a gel with certain flexibility and adhesion, which bonds the first target piece 3 and the cover plate 11 together. More specifically, the second target piece 4 can be a foam adhesive, which can further improve the absorption effect of the air bag on the energy of the sound airflow. Since the air bag includes the portion of the cover plate 11 corresponding to the second through holes 41, in order to improve the absorption effect of the air bag on the energy of the sound airflow, the portion of the cover plate 11 can also be structurally improved, for example, the portion of the cover plate 11 corresponding to the second through holes 41 is provided with rough textures formed by protruding structures or recessed structures. In order to facilitate manufacturing and reduce costs, the cover plate 11 can be provided as a plastic piece.

[0032] As shown in Figure 1 , in order to more efficiently absorb the energy of the sound airflow, in this embodiment, the cover plate 11, the second target piece 4, and the first target piece 3 are stacked on the target sound emitting surface of the loudspeaker 2, which emits a sound airflow with strong energy, that is, Figure 1The upper surface of the loudspeaker 2 is the target sound-emitting surface, and the sound airflow energy emitted from the upper surface is stronger than that from other surfaces of the loudspeaker 2. By layering the cover plate 11, the second target component 4, and the first target component 3 onto the target sound-emitting surface of the loudspeaker 2, the main portion of the sound airflow energy can be dispersed and absorbed, thus improving absorption efficiency. Furthermore, when the loudspeaker 2 has multiple sound-emitting surfaces, multiple sound-emitting surfaces can be selected simultaneously as the target sound-emitting surfaces, for example... Figure 1 When the upper surface and left side of the loudspeaker 2 are both sound-emitting surfaces, the first target component 3, the second target component 4, and the cover plate 11 can be stacked on the top and left sides of the loudspeaker 2 in the figure, respectively.

[0033] like Figure 1 As shown, in this embodiment, the battery 5 and the first target component 3 are spaced apart. The sound airflow emitted by the speaker 2 can reach the cover plate 11 through the gap between the battery 5 and the first target component 3. That is, in addition to a portion of the sound airflow entering the airbag formed by the first through hole 31, the second through hole 41, and the portion of the cover plate 11 corresponding to the second through hole 41, a portion also enters the cavity formed by the cover plate 11 and the battery 5 through the gap between the battery 5 and the first target component 3. In order to allow more of the sound airflow emitted by the speaker 2 to enter the airbag formed by the first through hole 31, the second through hole 41, and the portion of the cover plate 11 corresponding to the second through hole 41, i.e., to reduce the airflow entering other parts, thereby reducing the vibration degree of the cover plate 11, a filler can be used to block the gap between the battery 5 and the first target component 3. Therefore, in a preferred embodiment, the electronic device further includes: a third target component, spaced apart from the first target component 3; and a filler, disposed at the gap between the third target component and the first target component 3, wherein the sound emitted by the speaker 2 is transmitted through air from the first through-hole 31 into an airbag composed of the first through-hole 31, the second through-hole 41, and the portion of the cover plate 11 corresponding to the second through-hole 41. The third target component can be, in addition to being... Figure 1 Besides the battery 5, the filling material can also be other components spaced apart from the first target component 3 within the accommodating space of the housing 1. Specifically, the filling material can be foam or Mylar sheet.

[0034] See Figure 3 , Figure 3 The diagram shown is an exploded view of the electronic device provided in Embodiment 3. This electronic device is a mobile phone. The casing 1 includes a cover plate 11 and a middle frame 12. The cover plate 11 is located on the back of the electronic device. The electronic device includes a speaker 2 located at the top of the phone. Figure 3The left part of the middle frame 12 is provided with a speaker 2, and the bracket is taken as the first target piece 3 corresponding to the position of the speaker 2, the first target piece 3 is provided with the first through hole 31, and the second through hole 41 is formed by the adhesive in the adhesive ring for fixing the cover plate 11, that is, the adhesive layer of the cover plate 11 is taken as the second target piece 4. In the third embodiment, the first target piece 3 and the middle frame 12 are in a split structure, and the two can be assembled and connected by, for example, screws and the like.

[0035] Referring to Figure 4 , Figure 4 The embodiment four provides an exploded schematic view of an electronic device, which is similar to the third embodiment, and the electronic device is a mobile phone, the shell 1 includes a cover plate 11 and a middle frame 12, the cover plate 11 is located at the back of the electronic device, and the electronic device includes a speaker 2 located at the upper part of the mobile phone. Different from the third embodiment, the middle frame 12 in the fourth embodiment is integrally formed with the second target piece 4, that is, the second target piece 4 is a component of the middle frame 12, and the second target piece 4 is provided with the first through hole 31. The middle frame 12 and the cover plate 11 are bonded together by an adhesive layer, which can be taken as the second target piece 4, and the second target piece 4 is provided with the second through hole 41 corresponding to the first through hole 31.

[0036] The structures of the parts in the specification are described in a progressive manner, and the structure of each part mainly explains the difference from the existing structure, and the whole and part structures of the electronic device can be obtained by combining the structures of the above-mentioned parts.

[0037] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1.An electronic device, comprising: a housing formed with a receiving space, the housing comprising a cover plate; a speaker fixedly arranged in the receiving space of the housing, the receiving space of the housing serving as an acoustic cavity of the speaker; a first target member comprising a first through hole; a second target member comprising a second through hole, the second through hole being larger than the first through hole, the second through hole corresponding to at least one of the first through holes, the second target member being used to fix the cover plate to form the receiving space of the housing, the cover plate, the second target member and the first target member being stacked to form an air bag with an opening, wherein the air bag comprises the first through hole, the second through hole and a portion of the cover plate corresponding to the second through hole. 2.The electronic device of claim 1, wherein the second through hole is a plurality of second through holes. 3.The electronic device of claim 1, wherein the portion of the cover plate corresponding to the second through hole is provided with a rough texture formed by a protruding structure or a recessed structure. 4.The electronic device of claim 1, wherein the second target member is made of a soft material. 5.The electronic device of claim 1, wherein the cover plate, the second target member and the first target member are stacked at a target sound emitting surface of the speaker. 6.The electronic device of claim 1, further comprising: a third target member arranged in a spaced relationship with the first target member; a filler arranged at the space between the third target member and the first target member, wherein sound emitted by the speaker is transmitted from the first through hole into the air bag formed by the first through hole, the second through hole and the portion of the cover plate corresponding to the second through hole by means of air. 7.The electronic device of claim 1, wherein the first through hole is circular, elliptical or rectangular in shape, and the second through hole is circular, elliptical or rectangular in shape. 8.The electronic device of claim 1, wherein the electronic device is a mobile phone, the speaker is located at an upper portion of the electronic device, and the cover plate is located at a back portion of the electronic device. 9.The electronic device of claim 8, wherein the cover plate is a plastic member.

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