Sound device and electronic device

Abstract

The application relates to a sound emitting device and electronic equipment. The sound emitting device comprises a loudspeaker assembly and a resonance structure connected with each other; a hollow first resonance region and a second resonance region are formed in the resonance structure, the first resonance region and the second resonance region are communicated, an inner cavity of the loudspeaker assembly is communicated with the first resonance region, an audio outlet is arranged on a side of the resonance structure away from the loudspeaker assembly, the audio outlet is communicated with the second resonance region and is located on a side of the second resonance region away from the first resonance region. The resonance structure of the sound emitting device comprises two resonance cavities communicated with each other, a plurality of resonance peaks of sound emitted by the loudspeaker assembly can be formed in the resonance structure, the high-frequency cutoff frequency of the sound emitted by the loudspeaker assembly is improved, the high-frequency bandwidth is widened, and the user's listening experience is improved.

Description

Technical Field

[0001] This application relates to the field of terminal technology, and in particular to a sound-emitting device and electronic device. Background Technology

[0002] With the rapid development of the electronics industry, portable electronic devices have become increasingly popular due to their portability, comprehensive functions, and ability to meet people's needs for internet access, communication, and entertainment. As important electroacoustic products in electronic devices (such as speakers and receivers), they have also been widely used. Because many current electronic devices (such as mobile phones and tablets) are trending towards full-screen designs, the electroacoustic components in these devices often employ a side-emitting design. In related technologies, electronic devices using this side-emitting design have a front cavity structure including a cavity above the speaker diaphragm and a narrow, elongated channel connecting the sound outlet. This can easily lead to significant sound loss from the speaker, affecting the user's listening experience. Summary of the Invention

[0003] This application provides a sound-emitting device and an electronic device to address the shortcomings of related technologies.

[0004] According to a first aspect of the present application, a sound-emitting device is provided, comprising a loudspeaker assembly and a resonant structure interconnected therewith; a hollow first resonant region and a second resonant region are formed within the resonant structure, the first resonant region and the second resonant region are connected, the inner cavity of the loudspeaker assembly is connected to the first resonant region, and a sound outlet is provided on the side of the resonant structure away from the loudspeaker assembly, the sound outlet being connected to the second resonant region and located on the side of the second resonant region away from the first resonant region; wherein, the first resonant region and the second resonant region are used to generate resonance peaks for sound passing through the regions.

[0005] Furthermore, the resonant structure contains a first resonant cavity, a first resonant channel, a second resonant cavity, and a second resonant channel that are interconnected; wherein, the first resonant cavity and the first resonant channel form the first resonant region, and the second resonant cavity and the second resonant channel form the second resonant region; the inner cavity of the loudspeaker assembly is connected to the first resonant cavity, the first resonant cavity is connected to the second resonant cavity through the first resonant channel, the second resonant channel connects the second resonant cavity to the sound outlet, and the sound outlet is located on the side of the second resonant channel away from the second resonant cavity; the cross-sectional area of ​​the first resonant cavity is larger than the cross-sectional area of ​​the first resonant channel, and the cross-sectional area of ​​the second resonant cavity is larger than the cross-sectional area of ​​the second resonant channel.

[0006] Furthermore, the cross-section of the first resonant cavity is circular, and the cross-section of the first resonant channel is circular; or,

[0007] The cross-section of the second resonant cavity is circular, and the cross-section of the second resonant channel is circular.

[0008] Furthermore, the speaker assembly includes a speaker housing and a speaker, wherein an inner cavity is formed within the speaker housing, and the speaker is disposed within the inner cavity.

[0009] Furthermore, the inner cavity includes a first cavity region where the loudspeaker is disposed and a second cavity region located above the first cavity region. The loudspeaker includes a loudspeaker body and a diaphragm disposed on the loudspeaker body and facing the second cavity region.

[0010] Furthermore, the speaker housing includes a first housing portion and a second housing portion, wherein the first housing portion forms an inner cavity of the speaker assembly, and the second housing portion forms a communicating channel, and the inner cavity of the speaker assembly communicates with the first resonant cavity through the communicating channel.

[0011] Furthermore, a seal is provided at the connection between the speaker assembly and the resonant structure.

[0012] Furthermore, the material of the seal includes foam.

[0013] According to a second aspect of the present application, an electronic device is provided, the electronic device including a device housing and a sound-emitting device as described above, the resonant structure of the sound-emitting device being formed in the device housing, the device housing having a side wall, and the sound outlet being formed in the side wall of the device housing.

[0014] Furthermore, the electronic device includes a mobile phone, the device housing includes a mid-frame, the resonant structure is formed in the mid-frame, and the sound outlet is formed in the side wall of the mid-frame.

[0015] As can be seen from the above embodiments, in the sound-emitting device and electronic device described in this application, the sound-emitting device includes a speaker assembly and a resonant structure that are connected to each other. The resonant structure of the sound-emitting device includes two resonant cavities that are connected to each other. Multiple resonant peaks can be formed in the resonant structure for the sound emitted by the speaker assembly, thereby increasing the high-frequency cutoff frequency of the sound emitted by the speaker assembly and widening its high-frequency bandwidth, thereby improving the user's listening experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a sound-emitting device according to an exemplary embodiment;

[0018] Figure 2 To adopt Figure 1 The test frequency response curve of the sound-emitting device is shown. Detailed Implementation

[0019] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0020] The terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The singular forms “a,” “the,” and “the” as used in this disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0021] It should be understood that although the terms first, second, third, etc., may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0022] Figure 1 This is a schematic diagram of the structure of a sound-emitting device 100 according to an exemplary embodiment. Figure 2 To adopt Figure 1 The frequency response curve of the sound output device is shown.

[0023] Please refer to Figure 1 and combine when necessary Figure 2 As shown, the sound-emitting device 100 includes a loudspeaker assembly 10 and a resonant structure 20 that are interconnected.

[0024] The sound-emitting device 100 includes a speaker assembly 10 and a resonant structure 20 connected to each other. A hollow first resonant region and a second resonant region are formed within the resonant structure 20. The first and second resonant regions are connected, and the inner cavity of the speaker assembly 10 is connected to the first resonant region. A sound outlet 2041 is provided on the side of the resonant structure 20 away from the speaker assembly 10, and the sound outlet 2041 is connected to the second resonant region and located on the side of the second resonant region away from the first resonant region. The first and second resonant regions are used to generate resonance peaks for sound passing through the regions. This allows multiple resonance peaks to be formed in the resonant structure for the sound emitted by the speaker assembly, increasing the high-frequency cutoff frequency of the sound emitted by the speaker assembly, widening its high-frequency bandwidth, and thus improving the user's listening experience.

[0025] In some embodiments, a first resonant cavity 201, a first resonant channel 202, a second resonant cavity 203, and a second resonant channel 204 are formed within the resonant structure and are interconnected. The first resonant cavity 201 and the first resonant channel 202 form the first resonant region. The second resonant cavity 203 and the second resonant channel 204 form the second resonant region. The inner cavity of the speaker assembly 10 is connected to the first resonant cavity 201. The first resonant cavity 201 is connected to the second resonant cavity 203 via the first resonant channel 202. The second resonant channel 204 connects the second resonant cavity 203 to the sound outlet 2041, and the sound outlet 2041 is located on the side of the second resonant channel 204 away from the second resonant cavity 203. The cross-sectional area of ​​the first resonant cavity 201 is larger than the cross-sectional area of ​​the first resonant channel 202. The cross-sectional area of ​​the second resonant cavity 203 is larger than the cross-sectional area of ​​the second resonant channel 204.

[0026] Specifically, the first resonant cavity 201, the first resonant channel 202, the second resonant cavity 203, and the second resonant channel 204 are arranged sequentially along the length L of the sound-emitting device, thereby forming a resonant region at the first resonant cavity and the second resonant channel, and a second resonant region at the second resonant cavity and the second resonant channel. This creates multiple resonant peaks in the resonant structure to increase the high-frequency cutoff frequency of the sound emitted by the speaker assembly, broaden its high-frequency bandwidth, and thus improve the user's listening experience.

[0027] It should be noted that the resonant structure mentioned here may also include more resonant regions. For example, it may include more resonant cavities and resonant channels that are spaced apart and connected sequentially; or, for example, it may include three resonant cavities and three resonant channels. The number of resonant cavities and resonant channels can be set according to specific circumstances, and this application does not limit this.

[0028] In some embodiments, the cross-section of the first resonant cavity 201 is circular, and the cross-section of the first resonant channel 202 is circular.

[0029] In some embodiments, the cross-section of the second resonant cavity 203 is circular, and the cross-section of the second resonant channel 204 is circular.

[0030] Furthermore, in some embodiments, the speaker assembly 10 includes a speaker housing and a speaker 11. An inner cavity 101 is formed within the speaker housing. The speaker 11 is disposed within the inner cavity 101.

[0031] The speaker 11 may be disposed in the lower part of the inner cavity 101. The inner cavity 101 of the speaker assembly 10 includes a first cavity region 1011 on which the speaker 11 is disposed and a second cavity region 1012 located above the first cavity region 1011. The speaker 11 includes a speaker body and a diaphragm 111 disposed on the speaker body and facing the second cavity region 1012. Specifically, the diaphragm 111 is disposed on the upper surface of the speaker body.

[0032] The loudspeaker housing includes a first housing portion 12 and a second housing portion 13. An inner cavity 101 of the loudspeaker assembly 10 is formed within the first housing portion 12. A communicating channel 102 is formed within the second housing portion 13. The inner cavity 101 of the loudspeaker assembly 10 is connected to a first resonant cavity 201 through the communicating channel 102.

[0033] In some embodiments, the first housing portion 12 and the second housing portion 13 are integrally formed. An opening 1013 is provided on one side of the first housing portion 12, and the second housing portion 13 is disposed at this opening. A communication channel 102 communicates with the inner cavity 101 of the speaker assembly 10 through this opening 1013. The overall shape of the first housing portion 12 may be approximately cuboid. The second housing portion 13 may be a flattened cuboid structure, and the cross-section of its internal communication channel 102 is correspondingly square.

[0034] It should be noted that the speaker housing can be made of metal or non-metal, such as plastic. The resonant structure 20 can be made of metal, such as aluminum alloy.

[0035] Furthermore, in some embodiments, a seal 30 is provided at the connection between the speaker assembly 10 and the resonant structure 20. In some embodiments, the seal 30 is made of foam. Of course, in other embodiments, the seal can also be a structural component with a sealing function made of other materials.

[0036] Based on the above structure, the sound-emitting device 100 can form a resonant region at the inner cavity 101 and the connecting channel 102, the first resonant region at the first resonant cavity 201 and the first resonant channel 202, and the second resonant region at the second resonant cavity 203 and the second resonant channel 204. This allows the sound emitted by the loudspeaker to form multiple mid-frequency or high-frequency resonance peaks within the effective frequency range of human hearing (i.e., within 20kHz) in the sound-emitting device 100, and ensures that the high-frequency cutoff frequency and its sound pressure level are at a relatively high value, thereby widening the high-frequency bandwidth and improving the user's listening experience.

[0037] For details, please refer to Figure 2 As shown, Figure 2 To adopt Figure 1 The test frequency response curve of the sound output device is shown. Figure 2 The vertical axis of the frequency response curve shown represents the sound pressure level, and the horizontal axis represents the sound frequency. Specifically, the sound emitted by the loudspeaker can form a resonance region in the area created by the inner cavity 101 and the connecting channel 102, as shown in the figure. Figure 2 The first resonance peak A shown forms in the first resonance region as follows: Figure 2 The second resonance peak B shown, and the formation of the second resonance region as shown Figure 2 The third resonance peak C is shown. It can be seen that... Figure 2 The frequency response curve shown has a first mid-frequency resonant A and two high-frequency resonant peaks, namely the second resonant peak B and the third resonant peak C. The sound pressure level at its high-frequency cutoff frequency is above 80dB, which can effectively broaden the high-frequency bandwidth.

[0038] This application also provides an electronic device. The electronic device includes a device housing and a sound-emitting device as described above. The resonant structure 20 of the sound-emitting device is formed in the device housing, the device housing has a side wall, and the side wall of the device housing has the sound outlet 2041.

[0039] In some embodiments, the electronic device includes a mobile phone. The device housing includes a mid-frame, the resonant structure 20 is formed in the mid-frame, and the sound outlet 2041 is formed in the sidewall of the mid-frame. Optionally, the entire second resonant channel is formed in the sidewall of the mid-frame.

[0040] Furthermore, the sound outlet can be located on the bottom side wall of the phone, spaced apart from the headphone jack, charging port, etc. Of course, the sound outlet can also be located on other side walls of the phone; this application does not limit this and the location can be determined according to specific circumstances.

[0041] In addition, in some other embodiments, the electronic device may also be other electroacoustic devices with sound output devices, such as laptops, tablets, and wearable electroacoustic devices.

[0042] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0043] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A sound emitting device, characterized in that, The sound device comprises a speaker assembly and a resonance structure connected with each other, a hollow first resonance region and a second resonance region are formed in the resonance structure, the first resonance region and the second resonance region are communicated, an inner cavity of the speaker assembly is communicated with the first resonance region, an audio outlet is formed on a side of the resonance structure away from the speaker assembly, the audio outlet is communicated with the second resonance region and located on a side of the second resonance region away from the first resonance region, and the first resonance region and the second resonance region are used for generating resonance peaks for sound passing through the regions. The resonance structure is formed with a first resonance cavity, a first resonance channel, a second resonance cavity and a second resonance channel communicated with each other, the first resonance cavity and the first resonance channel form the first resonance region, the second resonance cavity and the second resonance channel form the second resonance region, an inner cavity of the speaker assembly is communicated with the first resonance cavity, the first resonance cavity is communicated with the second resonance cavity through the first resonance channel, the second resonance channel communicates the second resonance cavity with the audio outlet, and the audio outlet is located on a side of the second resonance channel away from the second resonance cavity. The speaker assembly comprises a speaker shell and a speaker, an inner cavity is formed in the speaker shell, and the speaker is arranged in the inner cavity. The speaker shell comprises a first shell part and a second shell part, an inner cavity of the speaker assembly is formed in the first shell part, a communication channel is formed in the second shell part, and the inner cavity of the speaker assembly is communicated with the first resonance cavity through the communication channel, the first shell part and the second shell part are integrally formed, an opening is formed on a side of the first shell part, the communication channel is communicated with the inner cavity of the speaker assembly through the opening, the first shell part is in the shape of a cuboid, the second shell part is a flat cuboid structure, and a cross section of the communication channel in the second shell part is square. In the sound device, a resonance region is formed at the inner cavity of the speaker assembly and the communication channel, a resonance region is formed at the first resonance cavity and the first resonance channel, and a resonance region is formed at the second resonance cavity and the second resonance channel.

2. The sound production device of claim 1, wherein A cross section area of the first resonance cavity is greater than a cross section area of the first resonance channel, and a cross section area of the second resonance cavity is greater than a cross section area of the second resonance channel.

3. The sound production device of claim 2, wherein The cross section of the first resonance cavity is circular, and the cross section of the first resonance channel is circular. The cross section of the second resonance cavity is circular, and the cross section of the second resonance channel is circular.

4. The sound production device of claim 1, wherein The inner cavity comprises a first cavity region in which the speaker is arranged and a second cavity region located above the first cavity region, the speaker comprises a speaker body and a diaphragm arranged on the speaker body and facing the second cavity region.

5. The sound production device of claim 1, wherein A sealing member is arranged at a connection between the speaker assembly and the resonance structure.

6. The sound production device of claim 5, wherein The material of the sealing member comprises foam.

7. An electronic device, comprising: The electronic device comprises a device shell and the sound emitting device according to any one of claims 1 to 6, the resonance structure of the sound emitting device is formed in the device shell, and the device shell is provided with a side wall, and the sound outlet is formed in the side wall of the device shell.

8. The electronic device of claim 7, wherein, The electronic device comprises a mobile phone, the device shell comprises a middle frame, the resonance structure is formed in the middle frame, and the sound outlet is formed in the side wall of the middle frame.

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