electronic devices

Abstract

This disclosure provides an electronic device, relating to the field of electronic product technology. The electronic device includes: a display module, a frame, a housing, and a sound-emitting device. The display module, frame, and housing are stacked, and the display module is connected to the housing via the frame. The sound-emitting device is mounted on the frame. The display module has a first sound outlet, and a first sound guiding channel is formed between the display module and the frame, through which the sound-emitting device communicates with the first sound outlet. A second sound guiding channel is formed between the housing and the frame, through which the sound-emitting device communicates with a second sound outlet. The second sound outlet is located in the frame, or alternatively, in the housing. The sound-emitting device includes a diaphragm facing the housing. The sound-emitting device has a sound guiding gap inside, and the first sound guiding channel communicates with the side of the diaphragm facing away from the housing via the sound guiding gap.

Description

Technical Field

[0001] This disclosure relates to the field of electronic product technology, specifically to an electronic device. Background Technology

[0002] In scenarios where users make handheld calls using electronic devices, the earpiece is positioned close to the top of the device, and the ear and face cannot completely seal it. Therefore, during a call, the sound output from the earpiece will leak due to reflection and diffraction from the body. It is evident that existing electronic devices are prone to sound leakage during calls. Summary of the Invention

[0003] This disclosure provides an electronic device that can prevent sound leakage from electronic devices.

[0004] In a first aspect, embodiments of this disclosure provide an electronic device, including: a display module, a frame, a housing, and a sound-emitting device, wherein the display module, the frame, and the housing are respectively stacked, and the display module is connected to the housing through the frame, and the sound-emitting device is mounted on the frame;

[0005] The display module has a first sound outlet, and a first sound guide channel is formed between the display module and the frame. The sound-emitting device is connected to the first sound outlet through the first sound guide channel.

[0006] A second sound-guiding channel is formed between the housing and the frame. The sound-generating device is connected to a second sound outlet through the second sound-guiding channel. The second sound outlet is located in the frame, or the second sound outlet is located in the housing.

[0007] The sound-generating device includes a diaphragm facing the housing. The sound-generating device has a sound-guiding gap inside, and the first sound-guiding channel communicates with the side of the diaphragm facing away from the housing through the sound-guiding gap.

[0008] In this embodiment, since the diaphragm is oriented towards the housing, during operation of the sound-generating device, the acoustic signal generated by the diaphragm can enter the second sound guide channel both internally and externally through the sound guide gap within the device. This sound guide gap reduces the energy of the acoustic signal entering the second sound guide channel. Therefore, by using a sound guide gap to connect the diaphragm and the first sound guide channel, the acoustic energy in the first and second sound guide channels can be effectively balanced. This facilitates the formation of an acoustic dipole between the first and second acoustic signals emitted from the first and second sound outlets. Consequently, the first and second acoustic signals can cancel each other out in the far field, preventing sound leakage in the electronic device. Attached Figure Description

[0009] Figure 1 This is one of the schematic diagrams of the internal structure of the electronic device provided in the embodiments of this disclosure;

[0010] Figure 2 This is the second schematic diagram of the internal structure of the electronic device provided in the embodiments of this disclosure;

[0011] Figure 3 This is the third schematic diagram of the internal structure of the electronic device provided in the embodiments of this disclosure;

[0012] Figure 4 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this disclosure;

[0013] Figure 5 This is the fourth schematic diagram of the internal structure of the electronic device provided in the embodiments of this disclosure;

[0014] Figure 6 This is the fifth schematic diagram of the internal structure of the electronic device provided in the embodiments of this disclosure;

[0015] Figure 7 This is a schematic diagram of a user making a call using a handheld electronic device in an embodiment of this disclosure. Detailed Implementation

[0016] The technical solutions of the embodiments of this disclosure will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure are within the scope of protection of this disclosure.

[0017] The terms "first," "second," etc., used in this disclosure and in the claims are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this disclosure can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0018] Please see Figures 1 to 6 , Figures 1 to 6This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present disclosure. The electronic device includes: a display module 101, a frame 102, a housing 103, and a sound-emitting device 104. The display module 101, the frame 102, and the housing 103 are stacked on top of each other, and the display module 101 is connected to the housing 103 through the frame 102. The sound-emitting device 104 is mounted on the frame 102.

[0019] The display module 101 has a first sound outlet 105, and a first sound guide channel 106 is formed between the display module 101 and the frame 102. The sound-emitting device 104 is connected to the first sound outlet 105 through the first sound guide channel 106.

[0020] A second sound guiding channel 108 is formed between the housing 103 and the frame 102. The sound generating device 104 is connected to the second sound outlet 107 through the second sound guiding channel 108. The second sound outlet 107 is opened in the frame 102, or the second sound outlet 107 is opened in the housing 103.

[0021] The sound-generating device 104 includes a diaphragm 1041, which is disposed facing the housing 103. The sound-generating device 104 has a sound-guiding gap inside, and the first sound-guiding channel 106 communicates with the side of the diaphragm 1041 facing away from the housing 103 through the sound-guiding gap.

[0022] In this embodiment of the present disclosure, since the first sound outlet 105 is located at the front end of the electronic device, the first sound outlet 105 forms the sound outlet of the sound-emitting device 104. Specifically, the first sound outlet 105 is a sound outlet slit formed between the display module 101 and the frame 102, or the first sound outlet 105 is a sound outlet hole opened in the display module 101.

[0023] The aforementioned second sound outlet 107 can be an opening of various shapes formed in the frame 102 or housing 103, for example, it can be an opening in the form of a sound hole or a sound slit. In one embodiment of this disclosure, the second sound outlet 107 can be an opening formed by the gap at the connection between the frame 102 and the decorative piece 119 of the camera 220. The following explanation further clarifies the structure of the electronic device provided in the embodiments of this disclosure, taking the second sound outlet 107 as an example of an opening formed in the housing 103. Furthermore, the aforementioned first sound guiding channel 106 and second sound guiding channel 108 can be sound guiding channels formed by the gaps between various components inside the electronic device. For example, please refer to... Figures 1 to 2In one embodiment of this disclosure, the first sound guiding channel 106 is formed by the gaps between components such as the first sealing member 114, the third dustproof mesh 112, the decorative cover 111, the frame 102, and the screen assembly. The second sound guiding channel 108 is formed by the gaps between components such as the second sealing member 115, the fourth dustproof mesh 116, the motherboard bracket 118 for supporting the motherboard 113, the sealing steel plate 117, the housing 103, and the decorative member 119.

[0024] The aforementioned sound-generating device 104 can be a common acoustic device in electronic devices. It is understood that the first sound-guiding channel 106 can form the front cavity of the sound-generating device 104, meaning the diaphragm 1041 of the sound-generating device 104 faces the first sound-guiding channel 106. Correspondingly, the second sound-guiding channel 108 can form the rear cavity of the sound-generating device 104. When the acoustic device is in operation, the sound waves emitted by the sound-generating device 104 can propagate to the first sound-guiding channel 106 and the second sound-guiding channel 108, respectively, and propagate outside the electronic device through the first sound outlet 105 and the second sound outlet 107, respectively.

[0025] Specifically, since the first sound outlet 105 and the second sound outlet 107 are located at the front and rear ends of the electronic device, respectively, the first sound outlet 105 and the second sound outlet 107 can respectively form two different sound sources on the electronic device. Please refer to [link / reference]. Figure 7 In a scenario where a user is making a call using a handheld electronic device, since the first sound outlet 105 is typically positioned against the user's ear, part of the first sound wave signal transmitted from the first sound outlet 105 enters the ear, while the other part is reflected by the body and propagates towards the back of the electronic device. Figure 7 In the direction indicated by the arrow, the leakage portion of the first acoustic signal can be out of phase with the second acoustic signal emitted from the second sound outlet 107, causing the leakage portion of the first acoustic signal and the second acoustic signal to form an acoustic dipole. This allows the leakage portion of the first acoustic signal to cancel out the second acoustic signal, thereby preventing sound leakage during user calls. Furthermore, compared to only having the first sound outlet 105, this embodiment of the disclosure simultaneously has both the first sound outlet 105 and the second sound outlet 107, thus forming two sound sources on the surface of the electronic device. Therefore, the sound heard by the user is clearer, achieving a near-field acoustic signal enhancement effect.

[0026] Specifically, since the first sound outlet 105 at the front of the electronic device is a feature of conventional designs, its opening area is often quite ample, and the corresponding size of the front sound guide channel is also often ideal. However, the second sound outlet 107 at the rear is not a conventional opening and often needs to be relatively concealed or small enough. Furthermore, the specific opening location is also restricted to avoid affecting the overall appearance of the device. Therefore, the rear opening is often smaller and farther from the sound-emitting device 104. Consequently, the ventilation of the first sound guide channel 106 is higher than that of the second sound guide channel 108. This results in the energy of the sound wave energy center emitted from the first sound outlet 105 being greater than the energy of the opposite-phase sound wave emitted from the second sound outlet 107, limiting the effectiveness of preventing sound leakage.

[0027] Based on this, please see Figures 1 to 2 By aligning the diaphragm 1041 of the sound-generating device 104 with the housing 103, the sound wave signal generated by the diaphragm 1041 can directly enter the second sound guide channel 108 during operation. Conversely, the sound wave signal generated by the diaphragm 1041 needs to pass through the sound guide gap inside the sound-generating device 104 before entering the first sound guide channel 106. That is, the sound wave signal generated by the diaphragm 1041 needs to pass through the sound guide gap and the first sound guide channel 106 sequentially to propagate to the first sound outlet 105, while the sound wave signal generated by the diaphragm 1041 only needs to pass through the second sound guide channel 108 to propagate to the second sound outlet 107. Therefore, since the sound guide gap can reduce the energy of the sound wave signal entering the second sound guide channel 108 to a certain extent, it is beneficial to balance the sound wave energy in the first sound guide channel 106 and the second sound guide channel 108, which in turn is beneficial to make the first sound wave signal emitted by the first sound outlet 105 and the second sound wave signal emitted by the second sound outlet 107 form an acoustic dipole.

[0028] The aforementioned sound-conducting gap can be the gap between various components inside the sound-generating device 104, for example, please refer to Figure 1 The sound-generating device 104 includes a magnetic coil 221, a magnetic body 222, and a voice coil 223. The magnetic body 222 is located inside the magnetic coil 221, and an annular gap is formed between the magnetic body 222 and the inner wall of the magnetic coil 221. The first end of the voice coil 223 is connected to the diaphragm 1041, and the second end of the voice coil 223 is embedded in the annular gap. The magnetic body 222 and the magnetic coil 221 are respectively spaced apart from the voice coil 223. Thus, a first gap is formed between the voice coil 223 and the magnetic body 222, and a second gap is formed between the voice coil 223 and the magnetic coil 221. The sound-conducting gap may include at least one of the first gap and the second gap.

[0029] In this embodiment, since the diaphragm 1041 is positioned facing the housing 103, during the operation of the sound-generating device 104, the sound wave signal generated by the diaphragm 1041 can enter the second sound guide channel 108 on one hand, and on the other hand, it can enter the second sound guide channel 108 through the sound guide gap inside the sound-generating device 104. Since the sound guide gap can reduce the energy of the sound wave signal entering the second sound guide channel 108 to a certain extent, by using the sound guide gap to connect the diaphragm 1041 and the first sound guide channel 106, the sound wave energy in the first sound guide channel 106 and the second sound guide channel 108 can be effectively balanced. This facilitates the formation of an acoustic dipole between the first sound wave signal emitted from the first sound outlet 105 and the second sound wave signal emitted from the second sound outlet 107. Thus, the first and second sound wave signals can cancel each other out in the far field, thereby preventing sound leakage in the electronic device.

[0030] Optionally, the acoustic impedance of the first sound guide channel 106 is less than that of the second sound guide channel 108, and the acoustic impedance of the first sound guide channel 106 is less than that of the sound guide gap.

[0031] The fact that the acoustic impedance of the first sound guide channel 106 is less than that of the second sound guide channel 108 can be interpreted as the air permeability of the first sound guide channel 106 being greater than that of the second sound guide channel 108. Correspondingly, the fact that the acoustic impedance of the first sound guide channel 106 is less than that of the sound guide gap can be interpreted as the air permeability of the first sound guide channel 106 being greater than that of the sound guide gap. Based on this, by aligning the diaphragm 1041 towards the housing 103, the sound wave signal must pass through the sound guide gap before entering the first sound guide channel 106. This effectively reduces the air permeability of the first sound guide channel 106 indirectly through the sound guide gap, thus facilitating a balance between the air permeability of the front and rear cavities of the sound-generating device 104. Consequently, the sound wave energy of the first sound wave signal output from the first sound outlet 105 and the sound wave energy of the second sound wave signal output from the second sound outlet 107 are relatively balanced. This improves the cancellation effect of the first and second sound wave signals in the far field, thereby further enhancing the sound leakage prevention effect of the electronic device.

[0032] Optionally, a first dustproof mesh 110 is provided inside the second sound outlet 107.

[0033] In this embodiment, by providing a first dustproof mesh 110 inside the second sound outlet 107, the overall waterproof and dustproof performance of the electronic device is improved. Alternatively, a second dustproof mesh can be provided at the first sound outlet 105 to further enhance the overall waterproof and dustproof performance of the electronic device. Furthermore, the second dustproof mesh can further increase the acoustic resistance of the first sound guiding channel 106, thereby facilitating a better balance in the ventilation between the front and rear cavities of the sound-generating device 104.

[0034] Optionally, the electronic device further includes a decorative cover 111, which is connected to the frame 102 and is located between the sound-emitting device 104 and the display module 101. The decorative cover 111 is opposite to the first sound outlet 105 to reduce the sound outlet area of ​​the first sound outlet 105.

[0035] As can be seen from the above embodiments, due to the structural limitations of electronic devices, the energy of the sound wave energy center emitted by the first sound outlet 105 is greater than the energy of the anti-phase sound wave emitted by the second sound outlet 107, thus limiting the sound leakage prevention effect.

[0036] Based on this, please see Figure 5 and Figure 6 In this embodiment of the present disclosure, the decorative cover 111 is positioned opposite the first sound outlet 105 to reduce the sound output area of ​​the first sound outlet 105. Because the sound output area of ​​the first sound outlet 105 is reduced, the energy level of the sound wave emitted from the first sound outlet 105 of the electronic device can be effectively reduced. This helps to balance the energy levels of the sound waves emitted from the first sound outlet 105 and the second sound outlet 107, thereby improving the sound leakage prevention effect.

[0037] Optionally, the first sound outlet 105 includes a strip-shaped slit, the strip-shaped slit including a first segment and a second segment, the distance between the first segment and the second sound outlet 107 being greater than the distance between the second segment and the second sound outlet 107;

[0038] The decorative cover 111 is opposite to the first segment to cover the first segment of the strip seam.

[0039] Since the decorative cover 111 covers the first segment of the strip-shaped seam, and the first segment of the strip-shaped seam is an opening on the surface of the electronic device, in order to avoid the decorative cover 111 affecting the aesthetics of the electronic device, the decorative cover 111 can be made of transparent material, and the decorative cover 111 can be pasted on the inside of the strip-shaped seam.

[0040] Specifically, the closer the distance between the first sound outlet 105 and the second sound outlet 107, the closer the energy centers of the sound wave signals emitted by them are, thus resulting in a better acoustic dipole effect. Based on this, in this embodiment, by blocking the first segment of the strip slit, the sound wave signal in the first sound guiding channel 106 is guided to the second segment for emission. In this way, the energy center of the sound wave signal in the first sound guiding channel 106 will shift towards the second segment, thereby reducing the distance between the energy centers of the first and second sound wave signals, which is more conducive to the formation of an acoustic dipole.

[0041] Optionally, the first segment is disposed opposite to the sound-generating device 104, and the second segment is offset from the position of the sound-generating device 104.

[0042] The distance between the first segment and the sound-generating device 104 is less than the distance between the second segment and the sound-generating device 104.

[0043] Please see Figure 6 In this embodiment of the disclosure, the first acoustic signal needs to travel along... Figure 6 The sound wave propagates in the direction indicated by the middle arrow. That is, when the first sound wave signal propagates to the first segment of the strip slit, it cannot propagate outward. It needs to bypass the first segment to propagate to the outside through the opening of the second segment. This helps to extend the length of the first sound guide channel 106, thereby further reducing the energy of the first sound wave signal emitted from the first sound outlet 105, so as to further balance the energy of the sound waves emitted from the first sound outlet 105 and the second sound outlet 107, thereby improving the sound leakage prevention effect.

[0044] Optionally, the orthographic projection of the sound-generating device 104 in the display module 101 is offset from the position of the first sound outlet 105.

[0045] In this embodiment, by making the orthographic projection of the sound-emitting device 104 in the display module 101 offset from the position of the first sound outlet 105, it is beneficial to extend the length of the first sound guide channel 106, so as to further balance the energy of the sound waves emitted by the first sound outlet 105 and the second sound outlet 107, thereby improving the sound leakage prevention effect.

[0046] Optionally, the electronic device includes a camera module, and the housing 103 has a mounting hole. The camera module passes through the mounting hole, and the gap between the housing 103 and the camera module forms the second sound outlet 107.

[0047] In this embodiment, the second sound outlet 107 is formed by the gap between the housing 103 and the shooting module. As a result, the second sound outlet 107 is more concealed due to the obstruction of the shooting module, which helps to improve the overall aesthetics of the electronic device.

[0048] Optionally, the electronic device further includes a motherboard bracket 118 and a sealing plate. The motherboard bracket 118 and the sealing plate are disposed opposite to each other. The motherboard bracket 118 is connected to the frame 102, and the sealing plate is connected to the housing 103. The second sound guide channel 108 is formed between the motherboard bracket 118 and the sealing plate.

[0049] In this embodiment, the motherboard bracket 118 and the sealing plate can respectively form two opposing inner sidewalls of the second sound guiding channel 108. In this way, the second sound guiding channel 108 can be further separated from other components in the electronic device by the motherboard bracket 118 and the sealing plate, which is conducive to further improving the overall waterproof and dustproof performance of the electronic device.

[0050] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this disclosure is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0051] The embodiments of this disclosure have been described above with reference to the accompanying drawings. However, this disclosure is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this disclosure without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this disclosure.

Claims

1. An electronic device, characterized in that, include: The display module, frame, housing, and sound-emitting device are stacked together, with the display module connected to the housing via the frame and the sound-emitting device mounted on the frame. The display module has a first sound outlet, and a first sound guide channel is formed between the display module and the frame. The sound-emitting device is connected to the first sound outlet through the first sound guide channel. A second sound-guiding channel is formed between the housing and the frame. The sound-generating device is connected to a second sound outlet through the second sound-guiding channel. The second sound outlet is located in the frame, or the second sound outlet is located in the housing. The sound-generating device includes a diaphragm facing the housing, and the sound-generating device has a sound-guiding gap inside. The first sound-guiding channel communicates with the side of the diaphragm facing away from the housing through the sound-guiding gap. The acoustic resistance of the first sound guide channel is less than that of the second sound guide channel, and the acoustic resistance of the first sound guide channel is less than that of the sound guide gap. When the sound-emitting device emits sound waves, the first sound wave signal emitted from the first sound outlet and the second sound wave signal emitted from the second sound outlet form an acoustic dipole. The electronic device further includes a decorative cover, which is connected to the frame and is located between the sound-emitting device and the display module. The first sound outlet includes a strip-shaped slit, which includes a first segment and a second segment. The distance between the first segment and the second sound outlet is greater than the distance between the second segment and the second sound outlet. The decorative cover is opposite to the first segment to conceal the first segment of the strip seam.

2. The electronic device according to claim 1, characterized in that, The sound-generating device includes a magnetic coil, a magnetic body, and a voice coil. The magnetic body is located inside the magnetic coil, and an annular gap is formed between the magnetic body and the inner wall of the magnetic coil. The first end of the voice coil is connected to the diaphragm, and the second end of the voice coil is embedded in the annular gap. The magnetic body and the magnetic coil are respectively spaced apart from the voice coil, and a first gap is formed between the voice coil and the magnetic body. A second gap is formed between the voice coil and the magnetic coil. The sound-conducting gap includes at least one of the first gap and the second gap.

3. The electronic device according to claim 1, characterized in that, The second sound outlet is equipped with a first dustproof mesh.

4. The electronic device according to any one of claims 1 to 3, characterized in that, The orthographic projection of the sound-generating device in the display module is offset from the position of the first sound outlet.

5. The electronic device according to any one of claims 1 to 3, characterized in that, The electronic device includes a camera module, and the housing has a mounting hole. The camera module passes through the mounting hole, and the gap between the housing and the camera module forms the second sound outlet.

6. The electronic device according to any one of claims 1 to 3, characterized in that, The electronic device further includes a motherboard bracket and a sealing plate. The motherboard bracket and the sealing plate are disposed opposite to each other. The motherboard bracket is connected to the frame, and the sealing plate is connected to the housing. The second sound guide channel is formed between the motherboard bracket and the sealing plate.

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