Electronic device

Abstract

An electronic device. A display screen is provided with a local groove structure, the position of the local groove structure corresponds to the position of a front cavity sound outlet channel, and the local groove structure is used for increasing the cross-sectional area of the front cavity sound outlet channel; and the front cavity sound outlet channel is used for exporting sound produced by a loudspeaker assembly. The front cavity sound outlet channel is used for exporting the sound produced by the loudspeaker assembly to the outside of the electronic device, and when the length and the width of the front cavity sound outlet channel are determined, the thickness of the front cavity sound outlet channel is the most critical factor affecting the airflow velocity, the greater the thickness is, the smaller the airflow velocity is, and the smaller the airflow noise caused by the airflow velocity is. By providing the local groove structure at the position on the display screen corresponding to the front cavity sound outlet channel, the thickness of the front cavity sound outlet channel is increased, that is, the cross-sectional area of the front cavity sound outlet channel is increased, such that the airflow velocity can be slowed down to reduce the airflow noise, and the whole machine thickness space is fully utilized while lightening and thinning the electronic device, thereby improving the audio performance of the electronic device.

Description

An electronic device

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on June 19, 2023, with application number 202310727638.4 and invention name “An Electronic Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of terminal design and manufacturing, and in particular to an electronic device. Background Art

[0003] With the advancement of electronic technology, electronic devices such as mobile phones and tablets are becoming increasingly thinner and lighter. This reduction in overall device thickness has reduced the thickness of audio components, and at the same time, the cross-sectional area of ​​the audio output channel has also been gradually reduced. Given a certain length of the audio channel, the thickness and width of the audio channel become the biggest factors limiting audio performance. Therefore, how to fully utilize the overall space of the device is the key to improving audio performance.

[0004] Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide an electronic device to improve the audio performance of the electronic device. The specific technical solution is as follows:

[0006] An embodiment of the present application provides an electronic device, including:

[0007] Display screen, front cavity sound outlet channel, speaker assembly;

[0008] The display screen has a local groove structure, the position of the local groove structure corresponds to the position of the front cavity sound outlet channel, and the local groove structure is used to increase the cross-sectional area of ​​the front cavity sound outlet channel;

[0009] The front cavity sound outlet channel is used to export the sound emitted by the speaker assembly.

[0010] In a possible implementation, the display screen includes a protective layer area, a functional layer area, and a non-functional layer area; the local groove structure is opened at a position in the non-functional layer area corresponding to the front cavity sound outlet channel.

[0011] In a possible implementation manner, the non-functional layer area includes: a buffer layer and a heat dissipation layer, and the local groove structure is obtained by cutting the buffer layer and / or the heat dissipation layer.

[0012] In a possible implementation, the electronic device further includes:

[0013] Middle frame, battery cover / inner screen, back cavity;

[0014] The front cavity sound outlet channel is the cavity structure between the speaker assembly and the display screen; the rear cavity is the cavity structure between the speaker assembly and the battery cover / inner screen;

[0015] There is a sound outlet gap between the middle frame and the display screen; the sound outlet gap is connected to the front cavity sound outlet channel; the middle frame is connected to the speaker assembly, and the middle frame is also connected to the battery cover / inner screen.

[0016] In a possible implementation, the speaker assembly includes a speaker core and a speaker cavity wall, and the speaker core is disposed within the speaker cavity wall.

[0017] In a possible implementation, the electronic device further includes:

[0018] Middle frame, battery cover / inner screen, back cavity;

[0019] The speaker cavity wall is connected to the middle frame;

[0020] The speaker cavity wall includes a front cavity wall and a rear cavity wall; there is a gap between the front cavity wall and the display screen, and there is a gap between the rear cavity wall and the battery cover / inner screen;

[0021] The front cavity sound outlet channel is the cavity structure between the speaker core and the front cavity wall; the rear cavity is the cavity structure between the speaker core and the rear cavity wall;

[0022] A sound outlet gap is provided between the middle frame and the display screen; the sound outlet gap is communicated with the front cavity sound outlet channel.

[0023] In a possible implementation, the front cavity wall has a first local convex groove structure, which cooperates with the local concave groove structure to increase the cross-sectional area of ​​the front cavity sound outlet channel.

[0024] In a possible implementation, the electronic device further includes:

[0025] Middle frame, battery cover / inner screen, back cavity;

[0026] The speaker cavity wall is connected to the middle frame;

[0027] The speaker cavity wall includes a front cavity wall and a rear cavity wall; there is a gap between the front cavity wall and the battery cover / inner screen, and there is a gap between the rear cavity wall and the display screen;

[0028] The front cavity sound outlet channel is the cavity structure between the speaker core and the front cavity wall; the rear cavity is the cavity structure between the speaker core and the rear cavity wall;

[0029] A sound outlet gap is provided between the middle frame and the display screen; the sound outlet gap is communicated with the front cavity sound outlet channel.

[0030] In a possible embodiment, the rear cavity wall has a second local convex groove structure, and the second local convex groove structure cooperates with the local groove structure to increase the cross-sectional area of ​​the front cavity sound outlet channel.

[0031] In a possible implementation, the electronic device further includes:

[0032] Speaker dust seal assembly;

[0033] The loudspeaker dustproof sealing component is arranged in the sound outlet gap or the front cavity sound outlet channel.

[0034] In a possible implementation manner, the thickness of the local groove structure is not less than 0.2 mm.

[0035] Beneficial effects of the embodiments of the present application:

[0036] The electronic device provided in the embodiment of the present application includes: a display screen, a front cavity sound outlet channel, and a speaker assembly; the display screen has a local groove structure, the position of the local groove structure corresponds to the position of the front cavity sound outlet channel, and the local groove structure is used to increase the cross-sectional area of ​​the front cavity sound outlet channel; the front cavity sound outlet channel is used to export the sound emitted by the speaker assembly. The front cavity sound outlet channel is used to export the sound emitted by the speaker assembly to the outside of the electronic device. When the length and width of the front cavity sound outlet channel are determined, the thickness of the front cavity sound outlet channel (i.e., the thickness direction of the electronic device) is the most critical factor affecting the airflow velocity. The greater the thickness, the smaller the airflow velocity, and the smaller the airflow noise caused by the airflow velocity. In the embodiment of the present application, the position corresponding to the front cavity sound outlet channel on the display screen has a local groove structure. Through the local groove structure, the thickness of the front cavity sound outlet channel is increased, that is, the cross-sectional area of ​​the front cavity sound outlet channel is increased, thereby slowing down the airflow velocity to reduce airflow noise and improve the audio performance of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0038] FIG1 is a schematic diagram of a mobile phone in the related art;

[0039] FIG2 is a schematic structural diagram of a display screen in an electronic device provided in an embodiment of the present application;

[0040] FIG3 is a schematic diagram of a partial structure of a first electronic device provided in an embodiment of the present application;

[0041] FIG4 is a partial structural diagram of a second electronic device provided in an embodiment of the present application;

[0042] FIG5 is a schematic diagram of a partial structure of a third electronic device provided in an embodiment of the present application;

[0043] FIG6 is a schematic diagram of a partial structure of a fourth electronic device provided in an embodiment of the present application;

[0044] FIG7 is a schematic diagram of a partial structure of a fifth electronic device provided in an embodiment of the present application;

[0045] FIG8 is a schematic diagram of a partial structure of a sixth electronic device provided in an embodiment of the present application;

[0046] FIG9 is a schematic diagram of the air flow velocity distribution in the front cavity sound outlet channel under the existing mobile phone structure;

[0047] FIG10 is a schematic diagram of the air flow velocity distribution in the front cavity sound outlet channel of the mobile phone structure according to an embodiment of the present application.

[0048] Explanation of the accompanying drawings: display screen 21, front cavity sound outlet channel 22, speaker assembly 23, middle frame 24, battery cover 25, rear cavity 26, sound outlet gap 27, speaker cavity wall 28, inner screen 29, speaker core 31; protective layer area 211, functional layer area 212, non-functional layer area 213, local groove structure 2131; front cavity wall 281 and rear cavity wall 282, first local convex groove structure 2811, second local convex groove structure 2821. DETAILED DESCRIPTION

[0049] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described below with reference to the accompanying drawings and examples. It should be understood that the described examples are only some examples of the present invention, not all examples. All other examples derived by persons of ordinary skill in the art based on the examples of the present invention fall within the scope of protection of the present invention.

[0050] In order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. For example, the first instruction and the second instruction are intended to distinguish different user instructions and do not limit their order. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit them to be different.

[0051] It should be noted that, in this application, words such as "exemplarily" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described in this application as "exemplary" or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplarily" or "for example" is intended to present the relevant concepts in a concrete manner.

[0052] In addition, "at least one" means one or more, and "more" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b and c can mean: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c, where a, b, c can be single or multiple.

[0053] With the development of electronic technology, electronic devices such as mobile phones and tablets are gradually becoming thinner and lighter. The thinning of the overall thickness of the device has compressed the thickness of the audio device, and at the same time, the cross-sectional area of ​​the audio device's sound output channel has also been gradually compressed. When the length of the sound output channel is constant, the thickness and width of the sound output channel become the biggest factors limiting audio performance. Taking a mobile phone as an example, the mobile phone in the related art is shown in Figure 1. The front cavity sound output channel is between the screen and the speaker assembly. When the length of the front cavity sound output channel is constant, the thickness and width of the front cavity sound output channel directly affect the flow rate of the airflow. The higher the flow rate of the airflow, the greater the noise caused by the airflow. Therefore, under the premise of making electronic devices thinner and lighter, how to make full use of the thickness of the overall device and improve audio performance has become an urgent problem to be solved.

[0054] In view of this, an embodiment of the present application provides an electronic device, including:

[0055] Display screen, front cavity sound outlet channel, speaker assembly;

[0056] The display screen has a local groove structure, the position of the local groove structure corresponds to the position of the front cavity sound outlet channel, and the local groove structure is used to increase the cross-sectional area of ​​the front cavity sound outlet channel;

[0057] The front cavity sound outlet channel is used to export the sound emitted by the speaker assembly.

[0058] The electronic device in the embodiment of the present application may be a mobile phone or a tablet, etc. The front cavity sound outlet channel is used to export the sound emitted by the speaker assembly to the outside of the electronic device. When the length and width of the front cavity sound outlet channel have been determined, the thickness of the front cavity sound outlet channel (i.e., the thickness direction of the electronic device) is the most critical factor affecting the airflow velocity. The greater the thickness, the smaller the airflow velocity, and the smaller the airflow noise caused by the airflow velocity. In the embodiment of the present application, a local groove structure is provided at a position corresponding to the front cavity sound outlet channel on the display screen. Through the local groove structure, the thickness of the front cavity sound outlet channel is increased, that is, the cross-sectional area of ​​the front cavity sound outlet channel is increased, thereby slowing down the airflow velocity to reduce the airflow noise and improve the audio performance of the electronic device.

[0059] A display screen is usually composed of a protective layer area, a functional layer area, and a non-functional layer area. The protective layer area may include a glass encapsulation layer; the functional layer area includes various functional layers for supporting touch and display, such as an anode layer, a cathode layer, an electroluminescent layer, etc.; the non-functional layer area may include a buffer layer and a heat dissipation layer, etc. Under normal circumstances, the thickness of the functional layer area is difficult to change; and when the protective layer area becomes thinner, the strength will also decrease accordingly, thereby affecting the life of the display screen; therefore, in one possible embodiment, referring to Figure 2, the above-mentioned display screen includes a protective layer area 211, a functional layer area 212, and a non-functional layer area 213; the above-mentioned local groove structure 2131 is opened in the above-mentioned non-functional layer area 213 at a position corresponding to the above-mentioned front cavity sound outlet channel. Opening the local groove structure 2131 in the non-functional layer area 213 has little effect on the functional layer area 212 and the protective layer area 211, and has almost no effect on the life of the display screen.

[0060] The non-functional layer area 213 may include a buffer layer and a heat dissipation layer, etc. In some examples, the buffer layer and the heat dissipation layer may also be one layer, namely a heat dissipation buffer layer. It is understandable that in the embodiment of the present application, a local groove structure 2131 is opened at a position corresponding to the front cavity sound outlet channel in the non-functional layer area 213, rather than removing the non-functional layer area 213. In one possible embodiment, taking the above-mentioned non-functional layer area 213 including: a buffer layer and a heat dissipation layer as an example, the above-mentioned local groove structure 2131 is obtained by cutting the above-mentioned buffer layer and / or the above-mentioned heat dissipation layer. The local groove structure 2131 can be obtained by cutting the buffer layer and / or the heat dissipation layer, and the cutting thickness can be specifically determined according to the thickness of the designed local groove structure 2131. It is understandable that the thickness of the local groove structure 2131 should not exceed the thickness of the non-functional layer area 213, otherwise it may affect the functional layer area 212. In one possible embodiment, the thickness of the above-mentioned local groove structure 2131 is not less than 0.2 mm. The thickness of the local groove structure 2131 is set to be greater than 0.2 mm, which can effectively increase the cross-sectional area of ​​the front cavity sound outlet channel, thereby reducing airflow noise and improving the audio performance of the electronic device. It should be understood that the thickness of the local groove structure 2131 is not less than 0.2 mm and is within the scope of protection of this application.

[0061] In a possible implementation, the speaker assembly includes a speaker core and a speaker cavity wall, and the speaker core is disposed within the speaker cavity wall.

[0062] The speaker assembly may include a speaker core and a speaker cavity wall. In some embodiments, the speaker assembly may also include a pickup core, etc. The speaker core may include a speaker and speaker circuitry for producing sound. The speaker cavity wall is used to protect the speaker core and facilitate the installation of the speaker and speaker circuitry. The speaker core is disposed within the speaker cavity wall. In one example, to reduce the impact of speaker vibration, the speaker may be fixed in place in the speaker cavity wall using at least three support points to meet the vibration requirements of the speaker in the speaker core.

[0063] The structure of the electronic device in the embodiment of the present application is described in detail below:

[0064] In one example, referring to FIG3 , the electronic device includes:

[0065] Display screen 21, front cavity sound outlet channel 22, speaker assembly 23, middle frame 24, battery cover 25, rear cavity 26, sound outlet gap 27;

[0066] The display screen 21 has a local groove structure 2131. The position of the local groove structure 2131 corresponds to the position of the front cavity sound outlet channel 22. The local groove structure 2131 is used to increase the cross-sectional area of ​​the front cavity sound outlet channel 22.

[0067] The front cavity sound outlet channel 22 is a cavity structure between the speaker assembly 23 and the display screen 21; the rear cavity 26 is a cavity structure between the speaker assembly 23 and the battery cover 25;

[0068] A sound outlet gap 27 is provided between the middle frame 24 and the display screen 21 ; the sound outlet gap 27 is communicated with the front cavity sound outlet channel 22 ; the middle frame 24 is connected to the speaker assembly 23 , and the middle frame 24 is also connected to the battery cover 25 .

[0069] Figure 3 illustrates a partial structural diagram of an electronic device. A sound outlet slit 27 is defined between the middle frame 24 and the display screen 21, and a front cavity sound outlet channel 22 is defined between the speaker assembly 23 and the display screen 21. One end of the speaker assembly 23 is connected to the middle frame 24, and the other end can be connected to a cavity wall structure or a bracket structure to secure the speaker assembly 23. A rear cavity 26 is defined between the speaker assembly 23 and the battery cover 25. This cavity is used to provide vibration balance when the speaker assembly 23 emits sound, thereby increasing the service life of the speaker assembly 23.

[0070] In one example, referring to FIG4 , the electronic device includes:

[0071] Display screen 21, front cavity sound outlet channel 22, speaker assembly 23, middle frame 24, inner screen 29, rear cavity 26, sound outlet gap 27;

[0072] The display screen 21 has a local groove structure 2131. The position of the local groove structure 2131 corresponds to the position of the front cavity sound outlet channel 22. The local groove structure 2131 is used to increase the cross-sectional area of ​​the front cavity sound outlet channel 22.

[0073] The front cavity sound outlet channel 22 is a cavity structure between the speaker assembly 23 and the display screen 21; the rear cavity 26 is a cavity structure between the speaker assembly 23 and the inner screen 29;

[0074] There is a sound outlet gap 27 between the above-mentioned middle frame 24 and the above-mentioned display screen 21; the above-mentioned sound outlet gap 27 is connected to the above-mentioned front cavity sound outlet channel 22; the above-mentioned middle frame 24 is connected to the above-mentioned speaker assembly 23, and the above-mentioned middle frame 24 is also connected to the above-mentioned inner screen 29.

[0075] Figure 4 illustrates a partial structural diagram of an electronic device. A sound outlet slit 27 is provided between the middle frame 24 and the display screen 21, and a front cavity sound outlet channel 22 is provided between the speaker assembly 23 and the display screen 21. One end of the speaker assembly 23 is connected to the middle frame 24, and the other end can be connected to a cavity wall structure or a bracket structure to secure the speaker assembly 23. A rear cavity 26 is provided between the speaker assembly 23 and the inner screen 29. This cavity is used to provide vibration balance when the speaker assembly 23 produces sound, thereby increasing the service life of the speaker assembly 23.

[0076] In one example, referring to FIG5 , the electronic device includes:

[0077] Display screen 21, front cavity sound outlet channel 22, speaker assembly 23, middle frame 24, battery cover 25, rear cavity 26, sound outlet gap 27;

[0078] The speaker assembly 23 includes a speaker cavity wall 28 and a speaker core 31 , wherein the speaker core 31 is disposed in the speaker cavity wall 28 ;

[0079] The display screen 21 has a local groove structure 2131. The position of the local groove structure 2131 corresponds to the position of the front cavity sound outlet channel 22. The local groove structure 2131 is used to increase the cross-sectional area of ​​the front cavity sound outlet channel 22.

[0080] The speaker cavity wall 28 includes a front cavity wall 281 and a rear cavity wall 282 ; there is a gap between the front cavity wall 281 and the display screen 21 , and there is a gap between the rear cavity wall 282 and the battery cover 25 ;

[0081] The speaker cavity wall 28 is connected to the middle frame 24, and specifically, the rear cavity wall 282 is connected to the middle frame 24;

[0082] The front cavity sound outlet channel 22 is a cavity structure between the speaker assembly 23 and the front cavity wall 281; the rear cavity 26 is a cavity structure between the speaker assembly 23 and the rear cavity wall 282;

[0083] A sound outlet slot 27 is defined between the middle frame 24 and the display screen 21 ; the sound outlet slot 27 is in communication with the front cavity sound outlet channel 22 .

[0084] Figure 5 illustrates a partial structural diagram of another electronic device; a speaker cavity wall 28 encloses a speaker core 31. A front cavity sound outlet channel 22 is defined between the speaker core 31 and the front cavity wall 281, and a rear cavity 26 is defined between the speaker core 31 and the rear cavity wall 282. A gap exists between the display screen 21 and the front cavity wall 281, and a gap exists between the rear cavity wall 282 and the battery cover 25. When the speaker core 31 vibrates, this may cause the speaker cavity wall 28 to vibrate. These two gaps serve as a vibration buffer, thereby protecting the display screen 21 and the battery cover 25. In one example, the front cavity wall 281 has a first local protrusion structure 2811. This first local protrusion structure 2811 cooperates with the local groove structure 2131 to increase the thickness of the front cavity sound outlet channel 22, that is, to increase the cross-sectional area of ​​the front cavity sound outlet channel 22. In this embodiment of the present application, the addition of the speaker cavity wall 28 structure can increase the stability of the speaker assembly 23 and provide protection for the speaker assembly 23.

[0085] In one example, referring to FIG6 , the electronic device includes:

[0086] Display screen 21, front cavity sound outlet channel 22, speaker assembly 23, middle frame 24, inner screen 29, rear cavity 26, sound outlet gap 27;

[0087] The speaker assembly 23 includes a speaker cavity wall 28 and a speaker core 31 , wherein the speaker core 31 is disposed in the speaker cavity wall 28 ;

[0088] The display screen 21 has a local groove structure 2131. The position of the local groove structure 2131 corresponds to the position of the front cavity sound outlet channel 22. The local groove structure 2131 is used to increase the cross-sectional area of ​​the front cavity sound outlet channel 22.

[0089] The speaker cavity wall 28 includes a front cavity wall 281 and a rear cavity wall 282 ; there is a gap between the front cavity wall 281 and the display screen 21 , and there is a gap between the rear cavity wall 282 and the inner screen 29 ;

[0090] The speaker cavity wall 28 is connected to the middle frame 24, and specifically, the rear cavity wall 282 is connected to the middle frame 24;

[0091] The front cavity sound outlet channel 22 is a cavity structure between the speaker assembly 23 and the front cavity wall 281; the rear cavity 26 is a cavity structure between the speaker assembly 23 and the rear cavity wall 282;

[0092] A sound outlet slot 27 is defined between the middle frame 24 and the display screen 21 ; the sound outlet slot 27 is in communication with the front cavity sound outlet channel 22 .

[0093] FIG6 shows a partial structural diagram of another electronic device; the speaker cavity wall 28 surrounds the speaker core 31. A front cavity sound outlet channel 22 is defined between the speaker core 31 and the front cavity wall 281, and a rear cavity 26 is defined between the speaker core 31 and the rear cavity wall 282. There is a gap between the display screen 21 and the front cavity wall 281, and a gap between the rear cavity wall 282 and the inner screen 29. When the speaker core 31 vibrates, it may cause the speaker cavity wall 28 to vibrate. These two gaps can serve as a vibration buffer, thereby protecting the display screen 21 and the inner screen 29. In one example, the front cavity wall 281 has a first local convex groove structure 2811. The first local convex groove structure 2811 cooperates with the local groove structure 2131 to increase the thickness of the front cavity sound outlet channel 22, that is, to increase the cross-sectional area of ​​the front cavity sound outlet channel 22. In this embodiment of the present application, by adding the speaker cavity wall 28 structure, the stability of the speaker assembly 23 can be increased, and the speaker assembly 23 can be protected.

[0094] In one example, referring to FIG7 , the electronic device includes:

[0095] Display screen 21, front cavity sound outlet channel 22, speaker assembly 23, middle frame 24, battery cover 25, rear cavity 26, sound outlet gap 27;

[0096] The speaker assembly 23 includes a speaker cavity wall 28 and a speaker core 31 , wherein the speaker core 31 is disposed in the speaker cavity wall 28 ;

[0097] The display screen 21 has a local groove structure 2131. The position of the local groove structure 2131 corresponds to the position of the front cavity sound outlet channel 22. The local groove structure 2131 is used to increase the cross-sectional area of ​​the front cavity sound outlet channel 22.

[0098] The speaker cavity wall 28 includes a front cavity wall 281 and a rear cavity wall 282 ; a gap is formed between the front cavity wall 281 and the battery cover 25 , and a gap is formed between the rear cavity wall 282 and the display screen 21 ;

[0099] The speaker cavity wall 28 is connected to the middle frame 24, and specifically, the front cavity wall 281 is connected to the middle frame 24;

[0100] The front cavity sound outlet channel 22 is a cavity structure between the speaker core 31 and the front cavity wall 281; the rear cavity 26 is a cavity structure between the speaker core 31 and the rear cavity wall 282;

[0101] A sound outlet slot 27 is defined between the middle frame 24 and the display screen 21 ; the sound outlet slot 27 is in communication with the front cavity sound outlet channel 22 .

[0102] Figure 7 illustrates a partial structural diagram of another electronic device. One end of a speaker core 31 is connected to a front cavity wall 281, and the other end is connected to a rear cavity wall 282. The speaker cavity wall 28 encloses the speaker core 31. A front cavity sound outlet channel 22 is defined between the speaker core 31 and the front cavity wall 281, and a rear cavity 26 is defined between the speaker core 31 and the rear cavity wall 282. A space is provided between the display screen 21 and the rear cavity wall 282, and a gap is provided between the front cavity wall 281 and the battery cover 25. When the speaker core 31 vibrates, this may cause the speaker cavity wall 28 to vibrate. These two spaces serve as vibration buffers, thereby protecting the display screen 21 and the battery cover 25. In one example, the rear cavity wall 282 has a second partial protrusion structure 2821, which cooperates with the partial groove structure 2131 to increase the thickness of the front cavity sound outlet channel 22, thereby increasing its cross-sectional area. In the embodiment of the present application, by adding the speaker cavity wall 28 structure, the stability of the speaker assembly 23 can be increased and the speaker assembly 23 can be protected.

[0103] In one example, referring to FIG8 , the electronic device includes:

[0104] Display screen 21, front cavity sound outlet channel 22, speaker assembly 23, middle frame 24, inner screen 29, rear cavity 26, sound outlet gap 27;

[0105] The speaker assembly 23 includes a speaker cavity wall 28 and a speaker core 31 , wherein the speaker core 31 is disposed in the speaker cavity wall 28 ;

[0106] The display screen 21 has a local groove structure 2131. The position of the local groove structure 2131 corresponds to the position of the front cavity sound outlet channel 22. The local groove structure 2131 is used to increase the cross-sectional area of ​​the front cavity sound outlet channel 22.

[0107] The speaker cavity wall 28 includes a front cavity wall 281 and a rear cavity wall 282 ; a gap is formed between the front cavity wall 281 and the inner screen 29 , and a gap is formed between the rear cavity wall 282 and the display screen 21 ;

[0108] The speaker cavity wall 28 is connected to the middle frame 24, and specifically, the front cavity wall 281 is connected to the middle frame 24;

[0109] The front cavity sound outlet channel 22 is a cavity structure between the speaker core 31 and the front cavity wall 281; the rear cavity 26 is a cavity structure between the speaker core 31 and the rear cavity wall 282;

[0110] A sound outlet slot 27 is defined between the middle frame 24 and the display screen 21 ; the sound outlet slot 27 is in communication with the front cavity sound outlet channel 22 .

[0111] Figure 8 illustrates a partial structural diagram of another electronic device. One end of a speaker core 31 is connected to a front cavity wall 281, and the other end is connected to a rear cavity wall 282. The speaker cavity wall 28 encloses the speaker core 31. A front cavity sound outlet channel 22 is defined between the speaker core 31 and the front cavity wall 281, and a rear cavity 26 is defined between the speaker core 31 and the rear cavity wall 282. A space is defined between the display screen 21 and the rear cavity wall 282, and a gap is defined between the front cavity wall 281 and the inner screen 29. When the speaker core 31 vibrates, this may cause the speaker cavity wall 28 to vibrate. These two spaces serve as vibration buffers, thereby protecting the display screen 21 and the inner screen 29. In one example, the rear cavity wall 282 has a second partial protrusion structure 2821, which cooperates with the partial groove structure 2131 to increase the thickness of the front cavity sound outlet channel 22, thereby increasing the cross-sectional area of ​​the front cavity sound outlet channel 22. In the embodiment of the present application, by adding the speaker cavity wall 28 structure, the stability of the speaker assembly 23 can be increased and the speaker assembly 23 can be protected.

[0112] To reduce dust intrusion into the speaker assembly 23, in one possible embodiment, the electronic device further includes a speaker dust seal assembly disposed within the sound slit 27 or the front cavity sound outlet passage 22. In one example, given the relatively narrow sound slit 27, the speaker dust seal assembly can be disposed within the front cavity sound outlet passage 22. In this embodiment of the present application, the electronic device further includes a speaker dust seal assembly, thereby reducing dust intrusion into the speaker assembly 23 and thereby extending the service life of the speaker assembly 23.

[0113] It can be understood that the electronic device in the embodiments of the present application can be either a folding screen device or a non-folding screen device. The folding structure of the folding screen can refer to the relevant folding screen technology and is not specifically limited in this application.

[0114] In order to more clearly illustrate that the electronic device of the embodiment of the present application can improve the audio performance, taking the electronic device as a mobile phone as an example, refer to Figures 9 and 10, wherein Figure 9 is a schematic diagram of the air flow velocity distribution in the front cavity sound outlet channel under the mobile phone structure shown in Figure 1, wherein the air flow velocity at the maximum air flow velocity position is 56.4797m / s; Figure 10 is a schematic diagram of the air flow velocity distribution in the front cavity sound outlet channel when the partial groove structure of the electronic device in the embodiment of the present application is 0.2mm, wherein the air flow velocity at the maximum air flow velocity position is 47.8603m / s; it can be seen that the electronic device in the embodiment of the application can reduce the maximum air flow velocity by about 20% by increasing the thickness of the front cavity sound outlet channel, thereby effectively reducing the air flow noise.

[0115] It can be understood that Figures 3 to 8 only illustrate the structural parts related to the front cavity sound outlet channel. The structures of other parts of the electronic device can be referred to related technologies and are not specifically limited in this application.

[0116] In the accompanying drawings, some structural or method features may be shown in a particular arrangement and / or order. However, it should be understood that such a particular arrangement and / or order may not be required. Rather, in some embodiments, these features may be arranged in a manner and / or order different from that shown in the accompanying drawings. In addition, the inclusion of a structural or method feature in a particular figure does not imply that such a feature is required in all embodiments, and in some embodiments, such features may not be included or may be combined with other features.

[0117] It should be noted that the units / modules mentioned in the various device embodiments of the present application are all logical units / modules. Physically, a logical unit / module can be a physical unit / module, or a part of a physical unit / module, or can be implemented as a combination of multiple physical units / modules. The physical implementation of these logical units / modules themselves is not the most important. The combination of functions implemented by these logical units / modules is the key to solving the technical problems raised by this application. In addition, in order to highlight the innovative part of this application, the above-mentioned device embodiments of this application do not introduce units / modules that are not closely related to solving the technical problems raised by this application. This does not mean that other units / modules do not exist in the above-mentioned device embodiments.

[0118] It should be noted that in the examples and description of this patent, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0119] Although the present application has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the application.

Claims

1. An electronic device, characterized in that: include: Display screen, front cavity sound outlet channel, speaker assembly; The display screen has a local groove structure, the position of the local groove structure corresponds to the position of the front cavity sound outlet channel, and the local groove structure is used to increase the cross-sectional area of ​​the front cavity sound outlet channel; The front cavity sound outlet channel is used to export the sound emitted by the speaker assembly.

2. The electronic device according to claim 1, characterized in that: The display screen comprises a protective layer area, a functional layer area, and a non-functional layer area; the local groove structure is arranged at a position in the non-functional layer area corresponding to the front cavity sound outlet channel.

3. The electronic device according to claim 2, characterized in that: The non-functional layer area includes: a buffer layer and a heat dissipation layer, and the local groove structure is obtained by cutting the buffer layer and / or the heat dissipation layer.

4. The electronic device according to claim 1, characterized in that: The electronic device further comprises: Middle frame, battery cover / inner screen, back cavity; The front cavity sound outlet channel is the cavity structure between the speaker assembly and the display screen; the rear cavity is the cavity structure between the speaker assembly and the battery cover / inner screen; A sound outlet gap is provided between the middle frame and the display screen; the sound outlet gap is connected to the front cavity sound outlet channel; the middle frame is connected to the speaker assembly, and the middle frame is also connected to the battery cover / inner screen.

5. The electronic device according to claim 1, characterized in that: The speaker assembly comprises a speaker core and a speaker cavity wall, wherein the speaker core is arranged in the speaker cavity wall.

6. The electronic device according to claim 5, characterized in that: The electronic device further comprises: Middle frame, battery cover / inner screen, back cavity; The speaker cavity wall is connected to the middle frame; The speaker cavity wall includes a front cavity wall and a rear cavity wall; there is a gap between the front cavity wall and the display screen, and there is a gap between the rear cavity wall and the battery cover / inner screen; The front cavity sound outlet channel is a cavity structure between the speaker core and the front cavity wall; the rear cavity is a cavity structure between the speaker core and the rear cavity wall; A sound outlet gap is provided between the middle frame and the display screen; the sound outlet gap is connected to the front cavity sound outlet channel.

7. The electronic device according to claim 6, characterized in that: The front cavity wall has a first local convex groove structure, which cooperates with the local concave groove structure to increase the cross-sectional area of ​​the front cavity sound outlet channel.

8. The electronic device according to claim 5, characterized in that: The electronic device further comprises: Middle frame, battery cover / inner screen, back cavity; The speaker cavity wall is connected to the middle frame; The speaker cavity wall includes a front cavity wall and a rear cavity wall; there is a gap between the front cavity wall and the battery cover / inner screen, and there is a gap between the rear cavity wall and the display screen; The front cavity sound outlet channel is a cavity structure between the speaker core and the front cavity wall; the rear cavity is a cavity structure between the speaker core and the rear cavity wall; A sound outlet gap is provided between the middle frame and the display screen; the sound outlet gap is connected to the front cavity sound outlet channel.

9. The electronic device according to claim 8, characterized in that: The rear cavity wall has a second local convex groove structure, and the second local convex groove structure cooperates with the local concave groove structure to increase the cross-sectional area of ​​the front cavity sound outlet channel.

10. The electronic device according to any one of claims 6 to 9, characterized in that: The electronic device further comprises: Speaker dust seal assembly; The loudspeaker dustproof sealing component is arranged in the sound outlet slot or the front cavity sound outlet channel.

11. The electronic device according to claim 1, characterized in that: The thickness of the local groove structure is not less than 0.2 mm.

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