Electronic device

By designing a hinged microphone assembly and adjusting the connection method of the sound holes in foldable electronic devices, the problem of inconsistent microphone positions in unfolded and folded states was solved, achieving a unified stereo noise reduction and sound intake effect, and improving the functional consistency of the microphone.

CN224555719UActive Publication Date: 2026-07-24BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
Filing Date
2025-06-17
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing foldable electronic products, the positions of the top and bottom microphones are inconsistent when the product is unfolded or folded, which fails to meet users' needs for stereo noise cancellation.

Method used

Design an electronic device comprising a mid-frame assembly, a hinge assembly, and a microphone assembly. By setting a hinge microphone assembly on the hinge assembly and adjusting the connection of the sound holes in the unfolded and folded states, combined with top and bottom microphone assemblies, a stereo noise reduction effect is achieved.

Benefits of technology

It achieves stereo noise reduction in the XYZ direction when unfolded, and maintains sound intake in the XY direction when folded, meeting the usage needs in different states and improving the consistency of microphone functions and noise reduction effect.

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Abstract

The present disclosure provides an electronic device, comprising a middle frame assembly and a rotating shaft microphone assembly, the middle frame assembly comprising an upper frame body, a lower frame body and a rotating shaft assembly, the upper frame body and the lower frame body being rotatably arranged on both sides of the rotating shaft assembly, and the rotating shaft microphone assembly being arranged on the rotating shaft assembly. The rotating shaft assembly is provided with a first sound hole in communication with the rotating shaft microphone assembly. The lower frame body is provided with a second sound hole. The electronic device comprises an unfolded state and a folded state. In the unfolded state, the upper frame body and the lower frame body are arranged along a set direction, the first sound hole is in communication with the second sound hole, and the included angle between the axial directions of the two and the thickness direction of the electronic device is a set angle. In the folded state, the upper frame body and the lower frame body are stacked on the same side of the rotating shaft assembly, the first sound hole is not in communication with the second sound hole, and the axial direction of the first sound hole is the same as the set direction. The rotating shaft microphone assembly is arranged by using the space of the rotating shaft assembly, a hidden microphone is realized, and the scene requirements in the unfolded state and the folded state of the electronic device are different.
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Description

Technical Field

[0001] This disclosure relates to the field of electronic equipment technology, and more particularly to an electronic device. Background Technology

[0002] In solutions for foldable electronic products on the market, microphones are generally designed at the top and bottom of the device. Since the call positions differ between the unfolded and folded states, when the device is folded, the top and bottom microphones are located at the same end, so having only two microphones (top and bottom) cannot meet user requirements. Utility Model Content

[0003] This disclosure provides an electronic device to solve at least some of the related technical problems.

[0004] This disclosure provides an electronic device, including: a mid-frame assembly and a hinge microphone assembly. The mid-frame assembly includes an upper frame, a lower frame, and a hinge assembly. The upper frame and the lower frame are rotatably disposed on both sides of the hinge assembly. The hinge microphone assembly is disposed on the hinge assembly. The hinge assembly has a first sound hole that communicates with the hinge microphone assembly. The lower frame has a second sound hole.

[0005] The electronic device includes an unfolded state and a folded state. In the unfolded state, the upper frame and the lower frame are arranged along a set direction, the first sound hole and the second sound hole are connected, and the angle between their axial directions and the thickness direction of the electronic device is a set angle. In the folded state, the upper frame and the lower frame are stacked on the same side of the pivot assembly, the first sound hole and the second sound hole are not connected, and the axial direction of the first sound hole is in the same direction as the set direction.

[0006] In some possible implementations, the pivot assembly includes a pivot and a pivot cover, one end of the pivot is connected to the upper frame and the other end is connected to the lower frame; the pivot cover is disposed between the pivot and the upper frame and the lower frame, and the upper frame and the lower frame move relative to the pivot cover via the pivot;

[0007] The swivel cover has the first sound hole, and the swivel microphone assembly is located on the side of the swivel cover facing the swivel.

[0008] In some possible implementations, a flexible circuit board is also included, wherein a receiving space is formed on the side of the hinge cover facing the hinge, at least a portion of the flexible circuit board is located within the receiving space and is fitted to the hinge cover, and the portion of the flexible circuit board located within the receiving space has a third sound hole communicating with the first sound hole; the hinge microphone assembly is disposed on the portion of the flexible circuit board located within the receiving space.

[0009] In some possible implementations, a first seal is also included, disposed between the pivot cover and the flexible circuit board, the first seal having a fourth sound hole communicating with the third sound hole.

[0010] In some possible implementations, a second seal is also included, disposed on the lower frame and located between the lower frame and the pivot cover; the second seal has a fifth sound hole communicating with the second sound hole.

[0011] In some possible implementations, the swivel microphone assembly includes a microphone and a support housing, the microphone being disposed on the swivel assembly and communicating with the first sound hole; the support housing covering the outside of the microphone and connected to the swivel assembly.

[0012] In some possible implementations, a main screen and a flexible component are also included, the main screen being disposed on the mid-frame component, one end of the flexible component being connected to the hinge microphone component, and the other end being connected to the main screen.

[0013] In some possible implementations, the elastic component includes an elastic element and a protective shell, one end of the elastic element being connected to the rotating microphone assembly and the other end being connected to the main screen; the protective shell covers the outside of the elastic element, one end of the protective shell being connected to the rotating microphone assembly and the other end being connected to the main screen.

[0014] In some possible implementations, a battery cover and a secondary screen are also included. The secondary screen is disposed on the side of the upper frame opposite to the main screen, and the battery cover is disposed on the side of the lower frame opposite to the main screen. A gap is formed between the battery cover and the lower frame, and the gap communicates with the second sound hole.

[0015] In some possible implementations, a top microphone assembly and a bottom microphone assembly are also included, the top microphone assembly being disposed at the top of the middle frame assembly and the bottom microphone assembly being disposed at the bottom of the middle frame assembly.

[0016] The technical solutions provided by the embodiments of this disclosure can achieve at least the following beneficial technical effects:

[0017] The disclosed electronic device, by providing a hinge microphone assembly on the hinge assembly, achieves a stereo noise reduction effect when the electronic device is unfolded. In its unfolded state, the angle between the sound intake direction of the hinge microphone assembly and the thickness direction of the electronic device is a predetermined angle, which is different from the predetermined direction. Combined with microphone assemblies located at the top and bottom of the electronic device, sound intake in the XYZ directions can be achieved. In its folded state, the microphone assemblies at the top and bottom of the electronic device are located at the same end of the middle frame assembly along the predetermined direction, while the hinge microphone assembly is located at the other end of the middle frame assembly along the predetermined direction, ensuring that the electronic device maintains sound intake in the XY directions.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the unfolded state of an electronic device according to an exemplary embodiment of the present disclosure.

[0021] Figure 2 This is a schematic diagram of the folded state of an electronic device according to an exemplary embodiment of the present disclosure.

[0022] Figure 3 and Figure 4 yes Figure 1 A cross-sectional view of plane AA.

[0023] Figure 5 and Figure 6 yes Figure 2 A cross-sectional view of the BB plane. Detailed Implementation

[0024] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0025] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0026] The electronic device of this disclosure will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can be combined with each other.

[0027] This disclosure provides an electronic device, which may be a smartphone, tablet, computer, television, or other electronic product. See also... Figures 1 to 6 As shown, the electronic device may include a mid-frame assembly 10 and a hinge microphone assembly 20. The mid-frame assembly 10 includes an upper frame 11, a lower frame 12, and a hinge assembly 13. The upper frame 11 and the lower frame 12 are rotatably disposed on both sides of the hinge assembly 13, and the hinge microphone assembly 20 is disposed on the hinge assembly 13. The hinge assembly 13 has a first sound hole 131, which communicates with the hinge microphone assembly 20. The lower frame 12 has a second sound hole 121. Optionally, the hinge assembly 13 can be press-fitted to the upper frame 11 and the lower frame 12 using sealing silicone to improve the sealing effect and enhance the sound transmission effect. It is understood that the electronic device of this embodiment is a foldable electronic device, and the rotation axis of the hinge assembly 13 can be along the width direction of the electronic device, such as a FLIP small foldable phone. The rotation axis of the hinge assembly 13 can also be along the length direction of the electronic device, such as a FOLD large foldable phone.

[0028] The electronic device also includes a top microphone assembly 30 and a bottom microphone assembly 40. The top microphone assembly 30 is disposed at one end of the middle frame assembly 10 along a predetermined direction, and the bottom microphone assembly 40 is disposed at the other end of the middle frame assembly 10 along the predetermined direction. Optionally, the predetermined direction is perpendicular to the thickness direction of the electronic device. The predetermined direction can be the length direction or the width direction of the electronic device. In this embodiment, the predetermined direction is the length direction of the electronic device, the rotation axis of the pivot assembly 13 is along the width direction of the electronic device, the top microphone assembly 30 is disposed at the top of the middle frame assembly 10, and the bottom microphone assembly 40 is disposed at the bottom of the middle frame assembly 10.

[0029] The electronic device includes an unfolded state and a folded state. For example... Figure 1 , Figure 3 and Figure 4 As shown, in the unfolded state, the top microphone assembly 30 and the bottom microphone assembly 40 are located at opposite ends of the electronic device along the set direction, and the upper frame 11 and the lower frame 12 are along the set direction ( Figure 1 , 3 The first sound hole 131 and the second sound hole 121 are arranged horizontally (as shown in Figure 4), and their axes are parallel to the thickness direction of the electronic device. Figure 3 , 4 The angle shown is the longitudinal angle, which is the set angle. Thus, in the unfolded state, the first sound hole 131 and the second sound hole 121 together serve as the sound channel of the rotating microphone assembly 20. Combined with the top microphone assembly 30 and the bottom microphone assembly 40, sound can enter the electronic device in the XYZ directions, thereby achieving a stereo noise reduction effect. Optionally, the set angle can be 0°, meaning that in the unfolded state, the axes of the first sound hole 131 and the second sound hole 121 are in the same direction as the thickness direction of the electronic device. The set angle can also be no greater than 20°, meaning that in the unfolded state, the axes of the first sound hole 131 and the second sound hole 121 have a certain angle with the thickness direction of the electronic device. In this embodiment, the set angle is 0°.

[0030] like Figure 2 , Figure 5 and Figure 6 As shown, in the folded state, the top microphone assembly 30 and the bottom microphone assembly 40 are located at the same end of the electronic device along the set direction. The upper frame 11 and the lower frame 12 are stacked on the same side of the hinge assembly. The first sound hole 131 and the second sound hole 121 are not connected. The axial direction of the first sound hole 131 is the same as the set direction, and the first sound hole 131 is located at the other end of the electronic device along the length direction. Thus, in the folded state, the first sound hole 131 serves as the sound channel of the hinge microphone assembly 20, enabling the electronic device to maintain sound intake in the XY direction. In this embodiment, in the folded state, the upper frame 11 and the lower frame 12 are arranged along the thickness direction of the electronic device.

[0031] The disclosed electronic device utilizes the space of the hinge assembly 13 to house the hinge microphone assembly 20, achieving a hidden microphone 21 and fulfilling different scenario requirements in the unfolded and folded states of the electronic device. In the unfolded state, the angle between the sound intake direction of the hinge microphone assembly 20 and the thickness direction of the electronic device is a predetermined angle, which is different from the predetermined direction. Combined with the top microphone assembly 30 and the bottom microphone assembly 40, sound intake in the XYZ directions of the electronic device can be achieved, thereby realizing a stereo noise reduction effect. In the folded state, the top microphone assembly 30 and the bottom microphone assembly 40 are located at the same end of the electronic device along the predetermined direction, while the hinge microphone assembly 20 is located at the other end of the electronic device along the predetermined direction, enabling the electronic device to maintain sound intake in the XY directions.

[0032] In this embodiment, the set direction is the length direction of the electronic device, the rotation axis of the hinge assembly 13 is along the width direction of the electronic device, and the set angle is 0. In the unfolded state, the top microphone assembly 30 and the bottom microphone assembly 40 are located at opposite ends along the length of the electronic device. The sound intake direction of the hinge microphone assembly 20 is the same as the thickness direction of the electronic device, i.e., perpendicular to the screen. Combined with the top microphone assembly 30 and the bottom microphone assembly 40, sound intake in the XYZ directions of the electronic device can be achieved, thus realizing a stereo noise reduction effect. In the folded state, the top microphone assembly 30 and the bottom microphone assembly 40 are located at the same end along the length of the electronic device, and the hinge microphone assembly 20 is located at the other end along the length of the electronic device, enabling the electronic device to maintain sound intake in the XY directions.

[0033] In some possible implementations, the hinge assembly 13 includes a hinge 132 and a hinge cover 133. One end of the hinge 132 is connected to the upper frame 11, and the other end is connected to the lower frame 12. The hinge cover 133 is disposed between the hinge 132 and the upper frame 11 and the lower frame 12. The upper frame 11 and the lower frame 12 move relative to the hinge cover 133 via the hinge 132, allowing the electronic device to switch between an unfolded state and a folded state. The hinge cover 133 has a first sound hole 131, and the hinge microphone assembly 20 is disposed on the side of the hinge cover 133 facing the hinge 132. The hinge cover 133 covers the outside of the hinge microphone assembly 20, providing protection. Optionally, sealing silicone can be used to press-fit the hinge 132 to the upper frame 11 and the lower frame 12 to improve the sealing effect and enhance sound transmission.

[0034] In some possible implementations, the electronic device further includes a flexible printed circuit board (FPC) 80 for electrical connection to the screen of the electronic device. A receiving space 134 is formed on the side of the hinge cover 133 facing the hinge 132. At least a portion of the flexible printed circuit board 80 is located within the receiving space 134 and is abutted against the hinge cover 133. The portion of the flexible printed circuit board 80 located within the receiving space 134 has a third sound hole 135 communicating with the first sound hole 131. The hinge microphone assembly 20 is disposed on the portion of the flexible printed circuit board 80 located within the receiving space 134.

[0035] Thus, due to the limited space in the thickness direction at the hinge position, the hinge cover 133 forms a receiving space 134. Utilizing the safety gap between the flexible circuit board 80 and the hinge cover 133, the hinge microphone assembly 20 is designed within the receiving space 134 of the flexible circuit board 80, fully utilizing the movement space of the flexible circuit board 80. This reduces the space occupied by the hinge microphone assembly 20 in the thickness direction. In the unfolded state, the first sound hole 131, the third sound hole 135, and the second sound hole 121 are connected, and all three together serve as the sound channel for the hinge microphone assembly 20. In the folded state, the first sound hole 131 and the third sound hole 135 together serve as the sound channel for the hinge microphone assembly 20.

[0036] In some possible implementations, the electronic device further includes a first seal 81 disposed between the hinge cover 133 and the flexible circuit board 80. The first seal 81 can improve the sealing between the hinge cover 133 and the flexible circuit board 80, thereby enhancing the sound transmission effect. The first seal 81 has a fourth sound hole communicating with the first sound hole 131. Optionally, the first seal 81 can be sealing foam, sealing silicone, etc.

[0037] In the unfolded state, the first sound hole 131, the third sound hole 135, the fourth sound hole, and the second sound hole 121 are connected, and together they serve as the sound channel of the rotating microphone assembly 20. In the folded state, the first sound hole 131, the third sound hole 135, and the fourth sound hole together serve as the sound channel of the rotating microphone assembly 20.

[0038] In some possible implementations, the electronic device further includes a second seal 122 disposed on the lower frame 12 and located between the lower frame 12 and the hinge cover 133. The second seal 122 can improve the sealing between the hinge cover 133 and the lower frame 12, enhancing the sound transmission effect. The second seal 122 has a fifth sound hole communicating with the second sound hole 121. Optionally, the second seal 122 can be sealing foam, sealing silicone, etc.

[0039] In the unfolded state, the first sound hole 131, the third sound hole 135, the fourth sound hole, the fifth sound hole, and the second sound hole 121 are connected, and together they serve as the sound channel of the rotating microphone assembly 20. In the folded state, since the second seal 122 overlaps between the lower frame 12 and the rotating cover 133, the gap between the lower frame 12 and the rotating cover 133 can be controlled by using the second seal 122 to hold the lower frame 12 and the rotating cover 133 together, preventing the gap from being too small or too large.

[0040] In some possible implementations, the swivel microphone assembly 20 includes a microphone 21 and a support shell 22. The microphone 21 is disposed on the swivel assembly 13 and communicates with the first sound hole 131. The support shell 22 covers the outside of the microphone 21 and is connected to the swivel assembly 13, and the support shell 22 can protect the microphone 21.

[0041] Understandably, with the flexible circuit board 80 provided, the microphone 21 is disposed within the receiving space 134 of the flexible circuit board 80 located within the shaft cover 133. The microphone 21 has a sound transmission hole, which communicates with the first sound hole 131, the third sound hole 135, and the fourth sound hole. The support shell 22 covers the outside of the microphone 21 and is connected to the portion of the flexible circuit board 80 located within the receiving space 134 of the shaft cover 133.

[0042] In some possible implementations, the electronic device further includes a main screen 50 and a flexible component 23, the main screen 50 being disposed on the mid-frame assembly 10 and electrically connected to the flexible circuit board 80. One end of the flexible component 23 is connected to the hinge microphone assembly 20, and the other end is connected to the main screen 50. Optionally, the flexible component 23 and the support shell 22 of the hinge microphone assembly 20 can be connected by adhesive dispensing.

[0043] When the electronic device switches between the unfolded state and the folded state, the rotation of the hinge 132 will cause the main screen 50 to move together. The elastic component 23 connected to the main screen 50 will push the hinge microphone component 20 against the hinge cover 133 to prevent poor microphone sealing and sound leakage.

[0044] In some possible implementations, the elastic component 23 includes an elastic element 231 and a protective shell 232. One end of the elastic element 231 is connected to the hinge microphone assembly 20, and the other end is connected to the main screen 50. The protective shell 232 covers the outside of the elastic element 231, and one end of the protective shell 232 is connected to the hinge microphone assembly 20, and the other end is connected to the main screen 50. The protective shell 232 can prevent the elastic element 231 from scratching the flexible circuit board 80 and the main screen 50. Optionally, the elastic element 231 can be a spring. Both the elastic element 231 and the protective shell 232 can be connected to the support shell 22 of the hinge microphone assembly 20 by adhesive dispensing.

[0045] In some possible implementations, the electronic device further includes a battery cover 70 and a secondary screen 60. The secondary screen 60 is disposed on the side of the upper frame 11 opposite to the main screen 50, and the battery cover 70 is disposed on the side of the lower frame 12 opposite to the main screen 50. A gap 123 is provided between the battery cover 70 and the lower frame 12, and the gap 123 communicates with the second sound hole 121. Thus, in the unfolded state, the first sound hole 131, the third sound hole 135, the fourth sound hole, the fifth sound hole, the second sound hole 121, and the gap 123 are connected, and the six of them together serve as the sound channel of the rotating microphone assembly 20. Furthermore, the sound transmission of the microphone is achieved by utilizing the gap 123 between the battery cover 70 and the lower frame 12, thus eliminating the need for openings in the battery cover 70 and greatly improving the integrated effect of the electronic device.

[0046] The assembly process of the electronic device disclosed herein is as follows:

[0047] First, the microphone 21 of the rotating microphone assembly 20 is soldered and assembled onto one side of the flexible circuit board 80. Then, the support shell 22 of the rotating microphone assembly 20 is soldered and assembled onto the same side of the flexible circuit board 80. Simultaneously, the first sealing member 81 is attached to the other side of the flexible circuit board 80. Then, the flexible circuit board 80 is assembled onto the rotating cover 133, with the first sealing member 81 located between the flexible circuit board 80 and the rotating cover 133.

[0048] Then the second seal 122 is assembled on the lower frame 12, and the pivot cover 133 is assembled on the upper frame 11 and the lower frame 12, with the second seal 122 located between the pivot cover 133 and the lower frame 12.

[0049] Then, the protective shell 232 is assembled onto the elastic member 231 to prevent the elastic member 231 from scratching the flexible circuit board 80 and the main screen 50. One end of the elastic member 231 and the protective shell 232 can be assembled onto the support shell 22 by dispensing adhesive. Then, the hinge 132 is assembled onto the upper frame 11 and the lower frame 12.

[0050] Next, assemble the main screen 50 onto the upper frame 11 and the lower frame 12. The other end of one end of the elastic member 231 and the protective shell 232 can be assembled onto the main screen 50 by applying adhesive. Finally, assemble the battery cover 70 and the secondary screen 60 onto the upper frame 11 and the lower frame 12 respectively.

[0051] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. An electronic device, characterized in that, include: A middle frame assembly and a rotating microphone assembly are provided. The middle frame assembly includes an upper frame, a lower frame, and a rotating assembly. The upper frame and the lower frame are rotatably disposed on both sides of the rotating assembly. The rotating microphone assembly is disposed on the rotating assembly. The rotating assembly has a first sound hole that communicates with the rotating microphone assembly. The lower frame has a second sound hole. The electronic device includes an unfolded state and a folded state. In the unfolded state, the upper frame and the lower frame are arranged along a set direction, the first sound hole and the second sound hole are connected, and the angle between their axial directions and the thickness direction of the electronic device is a set angle. In the folded state, the upper frame and the lower frame are stacked on the same side of the pivot assembly, the first sound hole and the second sound hole are not connected, and the axial direction of the first sound hole is in the same direction as the set direction.

2. The electronic device according to claim 1, characterized in that, The pivot assembly includes a pivot and a pivot cover. One end of the pivot is connected to the upper frame and the other end is connected to the lower frame. The pivot cover is disposed between the pivot and the upper frame and the lower frame. The upper frame and the lower frame move relative to the pivot cover via the pivot. The swivel cover has the first sound hole, and the swivel microphone assembly is located on the side of the swivel cover facing the swivel.

3. The electronic device according to claim 2, characterized in that, It also includes a flexible circuit board, wherein the hinge cover has a receiving space on the side facing the hinge, at least a portion of the flexible circuit board is located in the receiving space and is attached to the hinge cover, and the portion of the flexible circuit board located in the receiving space has a third sound hole communicating with the first sound hole; the hinge microphone assembly is disposed on the portion of the flexible circuit board located in the receiving space.

4. The electronic device according to claim 3, characterized in that, It also includes a first sealing element disposed between the rotating shaft cover and the flexible circuit board, wherein the first sealing element has a fourth sound hole communicating with the third sound hole.

5. The electronic device according to claim 2, characterized in that, It also includes a second sealing element, which is disposed on the lower frame and located between the lower frame and the pivot cover; the second sealing element has a fifth sound hole that communicates with the second sound hole.

6. The electronic device according to claim 1, characterized in that, The rotating microphone assembly includes a microphone and a support shell. The microphone is disposed on the rotating assembly and communicates with the first sound hole. The support shell covers the outside of the microphone and is connected to the rotating assembly.

7. The electronic device according to claim 1, characterized in that, It also includes a main screen and a flexible component. The main screen is disposed on the middle frame component, and one end of the flexible component is connected to the hinge microphone component, and the other end is connected to the main screen.

8. The electronic device according to claim 7, characterized in that, The elastic component includes an elastic element and a protective shell. One end of the elastic element is connected to the rotating microphone assembly, and the other end is connected to the main screen. The protective shell covers the outside of the elastic element, and one end of the protective shell is connected to the rotating microphone assembly, and the other end is connected to the main screen.

9. The electronic device according to claim 7, characterized in that, It also includes a battery cover and a secondary screen. The secondary screen is located on the side of the upper frame that is away from the main screen, and the battery cover is located on the side of the lower frame that is away from the main screen. There is a gap between the battery cover and the lower frame, and the gap communicates with the second sound hole.

10. The electronic device according to any one of claims 1-9, characterized in that, It also includes a top microphone assembly and a bottom microphone assembly, the top microphone assembly being disposed at the top of the middle frame assembly and the bottom microphone assembly being disposed at the bottom of the middle frame assembly.