Sound generating devices and electronic devices

Abstract

The present application discloses a sound-generating device and an electronic device, and relates to the technical field of sound-to-electric conversion. The sound-generating device includes a sound-generating component, a fixed bracket, a rotating bracket, and a sound guide, wherein the fixed bracket is connected to the sound-generating component; the rotating bracket is rotatably connected to the fixed bracket, and the rotating bracket is provided with a sound outlet; the sound guide connects the sound-generating component and the sound outlet; when the rotating bracket is in a first position relative to the fixed bracket, the sound outlet direction of the sound outlet is a first sound outlet direction; when the rotating bracket is in a second position relative to the fixed bracket, the sound outlet direction of the sound outlet is a second sound outlet direction, and the first sound outlet direction is different from the second sound outlet direction.

Description

Technical Field

[0001] The present application belongs to the technical field of sound-to-electric conversion, and specifically relates to a sound-generating device and an electronic device. Background Art

[0002] With the rapid development of portable electronic devices, the application of portable electronic devices is becoming more and more extensive. Portable electronic devices such as mobile phones, tablet computers, and bracelets play an increasingly important role in people's work, life, entertainment, etc. The sound-emitting device in the existing portable electronic device has a fixed sound outlet. In some usage scenarios, the sound outlet hole will be blocked by the user's finger, resulting in poor sound effect of the sound-emitting device. Summary of the invention

[0003] The present application aims to provide a sound-emitting device and an electronic device, which at least solve the technical problem that the sound outlet of the current sound-emitting device is blocked, resulting in poor sound effect of the sound-emitting device.

[0004] In order to solve the above technical problems, this application is implemented as follows:

[0005] In a first aspect, an embodiment of the present application provides a sound-generating device, comprising:

[0006] Sound-generating components;

[0007] A fixed bracket connected to the sound-generating component;

[0008] A rotating bracket is rotatably connected to the fixed bracket, and the rotating bracket is provided with a sound outlet hole;

[0009] A sound guide, connecting the sound-generating component and the sound outlet;

[0010] Wherein, when the rotating bracket is in the first position relative to the fixed bracket, the sound output direction of the sound output hole is the first sound output direction;

[0011] When the rotating bracket is in the second position relative to the fixed bracket, the sound output direction of the sound output hole is a second sound output direction, and the first sound output direction is different from the second sound output direction.

[0012] In a second aspect, an embodiment of the present application provides an electronic device, including:

[0013] As the sound-generating device of the first aspect.

[0014] In the embodiments of the present application, a rotating bracket is rotatably connected to a fixed bracket, and a sound guide is provided to connect the sound-emitting component and the sound outlet. Thus, the relative position of the rotating bracket and the fixed bracket can be adjusted according to the needs of different scenes to change the position of the sound outlet relative to the fixed bracket and adjust the sound direction of the sound outlet. This can avoid the user's body parts or external devices blocking the sound outlet to a certain extent, thereby improving the sound effect of the sound-emitting device.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 is a schematic structural diagram of an embodiment of a sound-generating device according to the present application;

[0018] Figure 2 is another structural schematic diagram of an embodiment of a sound-generating device according to the present application;

[0019] Figure 3 is a partial structural schematic diagram of an embodiment of a sound-generating device according to the present application;

[0020] Figure 4 is another partial structural schematic diagram of an embodiment of a sound-generating device according to the present application;

[0021] Figure 5 is another structural schematic diagram of an embodiment of a sound-generating device according to the present application;

[0022] Figure 6 is another structural schematic diagram of an embodiment of a sound-generating device according to the present application;

[0023] Figure 7 is a schematic structural diagram of an embodiment of an electronic device according to the present application;

[0024] Figure 8 is another structural schematic diagram of an embodiment of an electronic device according to the present application. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0026] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0028] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] Combine the following Figures 1 to 6 A sound generating device according to an embodiment of the present application is described.

[0030] like Figure 1 and Figure 2As shown, an embodiment of the present application provides a sound-emitting device 10, which includes a sound-emitting component 1, a fixed bracket 2, a rotating bracket 3 and a sound guide 4, wherein the fixed bracket 2 is connected to the sound-emitting component 1; the rotating bracket 3 is rotatably connected to the fixed bracket 2, and the rotating bracket 3 is provided with a sound outlet 21; the sound guide 4 connects the sound-emitting component 1 and the sound outlet 21; when the rotating bracket 3 is in a first position relative to the fixed bracket 2, the sound outlet direction of the sound outlet 21 is a first sound outlet direction X; when the rotating bracket 3 is in a second position relative to the fixed bracket 2, the sound outlet direction of the sound outlet 21 is a second sound outlet direction Y, and the first sound outlet direction X is different from the second sound outlet direction Y.

[0031] The diaphragm in the sound-generating component 1 vibrates to generate sound, and the sound guide 4 can be directly connected to the front cavity of the sound-generating component 1 or to the sound outlet channel of the sound-generating component 1 to guide the sound generated by the sound-generating component 1 out of the sound outlet hole 21 on the rotating bracket 3.

[0032] The relative position of the rotating bracket 3 and the fixed bracket 2 changes, and the sound output direction of the sound output hole 21 also changes. Figure 1 As shown, in one embodiment, when the rotating bracket 3 is in the first position relative to the fixed bracket 2, the rotating bracket 3 and the fixed bracket 2 are arranged at a first angle, and the sound outlet 21 guides the sound wave along the first sound outlet direction X. Figure 2 As shown, when the rotating bracket 3 is in the second position relative to the fixed bracket 2, the rotating bracket 3 and the fixed bracket 2 are arranged at a second angle, and the sound outlet 21 guides the sound wave along the second sound outlet direction Y. The relative position relationship between the rotating bracket 3 and the fixed bracket 2 can be adjusted according to different needs, so as to adjust the sound outlet direction of the sound outlet 21, and to a certain extent avoid the user's body parts or external equipment blocking the sound outlet 21. In one embodiment, when the rotating bracket 3 is in the second position relative to the fixed bracket 2, the first surface of the sound-emitting component 1 and a surface of the rotating bracket 3 are in the same plane, and the second sound outlet direction Y is perpendicular to the plane where the first surface is located. When the rotating bracket 3 is in the first position relative to the fixed bracket 2, the first surface of the sound-emitting component 1 and a surface of the rotating bracket 3 are arranged at 90°. The first sound outlet direction X can be arranged parallel to the plane where the first surface is located, that is, the first sound outlet direction X and the second sound outlet direction Y are arranged at 90°.

[0033] Those skilled in the art can understand that the first sound output direction X and the second sound output direction Y are not only affected by the position change of the rotating bracket 3 relative to the fixed bracket 2, but also by the extension direction of the sound hole 21 in the rotating bracket 3. Different first sound output directions X and second sound output directions Y can be obtained by setting sound holes 21 extending in different directions.

[0034] The sound guide 4 can be arranged on the same side of the sound component 1 and the fixed bracket 2. When the rotating bracket 3 is in the second position relative to the fixed bracket 2, the surfaces of the sound component 1 and the fixed bracket 2 facing away from the sound guide 4 can be in the same plane, so as to facilitate the installation of other components on the side of the sound component 1 and the fixed bracket 2 facing away from the sound guide 4. The fixed bracket 2 can be formed by extending the shell of the sound component 1, and the fixed bracket 2 can also be connected to the sound component 1 by bolts, adhesives, etc. By providing a fixed bracket 2 connected to the sound component 1, the sound component 1 and the rotating bracket 3 can be rotatably connected through the fixed bracket 2 without changing the original structure of the sound component 1.

[0035] In the embodiment of the present application, a rotating bracket 3 is rotatably connected to a fixed bracket 2, and a sound guide 4 is provided to connect the sound-emitting component 1 and the sound hole 21. Therefore, the relative position of the rotating bracket 3 and the fixed bracket 2 can be adjusted according to the needs of different scenes to change the position of the sound hole 21 relative to the fixed bracket 2, adjust the sound direction of the sound hole 21, and avoid the user's body parts or external equipment blocking the sound hole 21 to a certain extent, thereby improving the sound effect of the sound-emitting device 10.

[0036] In some embodiments, the sound guide 4 is a hollow tube and is retractable. When the rotating bracket 3 is in a first position relative to the fixed bracket 2, the sound guide 4 is in a contracted state, and when the rotating bracket 3 is in a second position relative to the fixed bracket 2, the sound guide 4 is in a stretched state.

[0037] The sound guide 4 can be made of a retractable elastic deformable material so that the sound guide 4 can be retracted to achieve length adjustment of the sound guide 4 ; the sound guide 4 can also be a bellows to achieve retractability of the sound guide 4 .

[0038] When the rotating bracket 3 is in the first position relative to the fixed bracket 2, the sound guide 4 is in a retracted state, that is, a shorter sound guide 4 can connect the sound-emitting component 1 and the sound outlet 21. When the rotating bracket 3 is in the second position relative to the fixed bracket 2, the sound guide 4 is in a stretched state, that is, a longer sound guide 4 is required to connect the sound-emitting component 1 and the sound outlet 21. By providing a retractable sound guide 4, the sound guide 4 can be adapted to the sound outlet 21 and the sound-emitting component 1 with different positional relationships, so that the sound waves emitted by the sound-emitting component 1 can be propagated from the sound outlet 21 through the sound guide 4, thereby increasing the volume that can be achieved by the sound-emitting device 10.

[0039] In some embodiments, the sound guide 4 includes a plurality of sleeves 41 , and the plurality of sleeves 41 are sequentially sleeved.

[0040] Each sleeve 41 sleeved with each other can be telescopically moved, so that the sound guide 4 can be telescopic. In order to further protect the sound guide 4, a protection tube can be sleeved on the outside of the sound guide 4.

[0041] In some embodiments, the sound hole 31 is opened at one end of the rotating bracket 3 away from the fixed bracket 2. The sound generating component 1 can be arranged at one end of the fixed bracket 2 away from the rotating bracket 3, so that the sound hole 31 can have a larger spacing distance from the sound generating component 1 and the fixed bracket 2.

[0042] Please refer to Figure 3 In one embodiment, the sound-emitting component 1 includes a side wall 11 disposed opposite to the fixed bracket 2, the sound outlet of the sound-emitting component 1 is disposed on the side wall 11, the fixed bracket 2 is provided with a connecting channel 31 connected to the sound outlet, and the sound guide 4 can pass through the connecting channel 31 to communicate with the sound outlet. Figure 4 In another embodiment, the sound-emitting component 1 includes an inner wall 12 and an outer wall 13 that are arranged opposite to each other, and a side wall 11 connecting the inner wall 12 and the outer wall 13, the side wall 11 is arranged opposite to the fixed bracket 2, the sound outlet of the sound-emitting component 1 is arranged on the inner wall 12, the sound guide 4 is arranged on the side of the inner wall 12 away from the outer wall 13, and the sound guide 4 is directly connected to the sound outlet.

[0043] See also Figure 5 and Figure 6 The sound-generating device 10 further includes a reset component 5, both ends of which are respectively connected to the fixed bracket 2 and the rotating bracket 3, and the reset component 5 is used to drive the rotating bracket 3 to rotate from the second position to the first position or from the first position to the second position.

[0044] The reset assembly 5 may specifically include a plurality of elastic structures to apply a pulling force and / or a pushing force to the rotating bracket 3. In one embodiment, when the rotating bracket 3 is in the first position relative to the fixed bracket 2, the rotating bracket 3 is subjected to a reset force applied by the reset assembly 5, so that the rotating bracket 3 and the fixed bracket 2 are kept in a state of being set at an angle. Under the action of an external force, the rotating bracket 3 and the fixed bracket 2 are switched from the relative first position to the relative second position, and the rotating bracket 3 applies a deformation force to the reset assembly 5. Under the action of the deformation force, at least some parts of the reset assembly 5 are in a stretched state, and the reset assembly 5 has the ability to pull the rotating bracket 3 to move so that the rotating bracket 3 and the fixed bracket 2 are restored to the first position. Of course, it can be understood by those skilled in the art that the sound-generating device 10 may also include a clamping fixture. When the rotating bracket 3 is in the first position or the second position relative to the fixed bracket 2, the relative movement between the rotating bracket 3 and the fixed bracket 2 can be limited by the clamping fixture, so that when no other external force acts on the rotating bracket 3, the rotating bracket 3 and the fixed bracket 2 maintain the relative first position or the second position. When the bracket 3 needs to be rotated, the bracket 3 can be rotated around the fixed bracket 2 to the first position or the second position by toggling the engaging fixing piece and under the action of the resetting assembly 5 .

[0045] In some embodiments, the reset assembly 5 includes a first bracket 51, a second bracket 52 and at least one elastic reset member 53, the first bracket 51 includes at least two connecting arms (not marked), the multiple connecting arms are hinged in sequence, and the two ends of the first bracket 51 are respectively hinged to the fixed bracket 2 and the rotating bracket 3; the second bracket 52 includes at least two movable arms (not marked), the multiple movable arms are hinged in sequence, the two ends of the second bracket 52 are respectively hinged to the fixed bracket 2 and the rotating bracket 3, and the first bracket 51 is arranged around the second bracket 52; the elastic reset member 53 connects the first bracket 51 and the second bracket 52, and the elastic reset member 53 can drive the connecting arm and the movable arm to move so that the fixed bracket 2 rotates from the second position to the first position or from the first position to the second position.

[0046] A plurality of connecting arms are hinged in sequence, and a plurality of movable arms are hinged in sequence, so that the first bracket 51 and the second bracket 52 can change shape as the rotating bracket 3 and the fixed bracket 2 rotate relative to each other. The elastic reset member 53 connects the first bracket 51 and the second bracket 52, so that the elastic reset member 53 can change shape as the first bracket 51 and the second bracket 52 change shape, and can switch between a stretched state and a contracted state. The contracted state and the stretched state of the elastic reset member 53 are two relative concepts. It can be understood by those skilled in the art that the elastic reset member 53 can apply a pulling force or a thrust to the rotating bracket 3 through the first bracket 51 and the second bracket 52 in the contracted state and the stretched state. Since the elastic reset force of the elastic reset member 53 can be expressed as a pulling force or a thrust applied to the rotating bracket 3, under the action of the elastic reset member 53, the rotating bracket 3 can be driven to rotate from the second position to the first position or from the first position to the second position.

[0047] In some embodiments, the first bracket 51 includes a hinged first connecting arm 511 and a second connecting arm 512, one of the first connecting arm 511 and the second connecting arm 512 is hinged to the rotating bracket 3, and the other is hinged to the fixed bracket 2. The first bracket 51 includes two hinged connecting arms, so that the first bracket 51 has a simple structure. Of course, those skilled in the art can also set more connecting arms as needed.

[0048] In other embodiments, the second bracket 52 includes a hinged first moving arm 521 and a second moving arm 522, one of the first moving arm 521 and the second moving arm 522 is hinged to the rotating bracket 3, and the other is hinged to the fixed bracket 2. Accordingly, the second bracket 52 includes two hinged moving arms, so that the second bracket 52 has a simple structure. Of course, those skilled in the art can also set more moving arms as needed.

[0049] The elastic reset member 53 connects the second connecting arm 512 and the first movable arm 521. When the rotating bracket 3 is in the first position relative to the fixed bracket 2, the elastic reset member 53 is in a contracted state. When the rotating bracket 3 is in the second position relative to the fixed bracket 2, the elastic reset member 53 is in a stretched state.

[0050] exist Figure 5 In the illustrated embodiment, the first connecting arm 511 is hinged to the rotating bracket 3, and the second connecting arm 512 is hinged to the fixed bracket 2. The first movable arm 521 is hinged to the rotating bracket 3, and the second movable arm 522 is hinged to the fixed bracket 2. One end of the elastic reset member 53 is connected to the hinge of the first connecting arm 511 and the second connecting arm 512, and the other end of the elastic reset member 53 is connected to the end of the first movable arm 521 away from the rotating bracket 3.

[0051] The second connecting arm 512 includes a first arm portion 512a, a second arm portion 512b and a connecting portion 512c. One end of the first arm portion 512a is hinged to the fixed bracket 2, and the other end is fixedly connected to the second arm portion 512b. The second arm portion 512b is hinged to the first connecting arm 511, and the connecting portion 512c is protruded from the first arm portion 512a toward the second bracket 52. When the rotating bracket 3 is in the second position relative to the fixed bracket 2, the connecting portion 512c is engaged with the first movable arm 521, and the extension directions of the first arm portion 512a and the second arm portion 512b are intersecting.

[0052] The connecting portion 512c may also be hinged to the first movable arm 521 so that the movement of the first movable arm 521 is associated with the movement of the connecting portion 512c, thereby improving the stability between the first bracket 51 and the second bracket 52 during the deformation process.

[0053] The first movable arm 521 may include a third arm portion 521a and a fourth arm portion 521b, one end of the third arm portion 521a is hinged to the rotating bracket 5213, and the other end is fixedly connected to the fourth arm portion 521b, the third arm portion 521a is hinged to the second movable arm 522, the fourth arm portion 521b is hinged to the connecting portion 512c, and one end of the fourth arm portion 521b away from the third arm portion 521a is connected to the elastic reset member 53. The position of the first movable arm 521 is affected by the rotating bracket 3, the second movable arm 522, the connecting portion 512c and the elastic reset member 53 at the same time, and the fourth arm portion 521b is provided to facilitate the connection between the first movable arm 521, the connecting portion 512c and the elastic reset member 53.

[0054] When the rotating bracket 3 is in the second position relative to the fixed bracket 2, the connecting portion 512c is engaged with the fourth arm portion 521b, and when the rotating bracket 3 is in the first position relative to the fixed bracket 2, the connecting portion 512c is separated from the fourth arm portion 521b. Specifically, a protrusion or groove can be provided on the connecting portion 512c so that when the rotating bracket 3 is in the second position relative to the fixed bracket 2, the connecting portion 512c is engaged with the fourth arm portion 521b. Thus, in the absence of external force, the elastic deformation force of the elastic reset member 53 is less than the abutment force of the connecting portion 512c and the fourth arm portion 521b engaging with each other, and the elastic reset member 53 cannot drive the rotating bracket 3 to move. Under the action of external force, the connecting portion 512c is separated from the fourth arm portion 521b, and the driving force provided by the elastic reset member 53 can drive the rotating bracket 3 to move and reset.

[0055] In some embodiments, the rotating bracket 3 includes a rotating plate 31 and a first mounting bracket 32 ​​disposed on the rotating plate 31, and the opposite ends of the first mounting bracket 32 ​​are respectively hinged to the first bracket 51 and the second bracket 52. The fixed bracket 2 includes a fixed plate 21 and a second mounting bracket 22 disposed on the fixed plate 21, and the opposite ends of the second mounting bracket 22 are respectively hinged to the first bracket 51 and the second bracket 52, and the rotating plate 31 is hinged to the fixed plate 21. The sound outlet 21 is disposed at one end of the rotating plate 31 away from the fixed plate 21 along the thickness direction of the rotating plate 31.

[0056] See also Figure 7 and Figure 8 The present application also provides an electronic device, comprising the sound-generating device 10 as provided above.

[0057] In the embodiment of the present application, the above-mentioned electronic device can be any one of a mobile phone, a tablet computer, and a wearable device.

[0058] The electronic device according to the embodiment of the present application may further include a display panel, an antenna, a speaker, a fingerprint recognition module, etc. Other configurations and operations are known to ordinary technicians in the field and will not be described in detail here.

[0059] In one embodiment, the electronic device includes a middle frame 20, the middle frame 20 includes a first side wall 201, a second side wall 202 and a notch 203, the first side wall 201 and the second side wall 202 are arranged at an angle, and the notch 203 is arranged on the second side wall 202; the sound-emitting component 1 and the fixed bracket 2 are arranged on the first side wall 201, and the rotating bracket 3 is arranged at the notch 203. When the rotating bracket 3 is in a first position relative to the fixed bracket 2, the rotating bracket 3 is located at the notch 203; when the rotating bracket 3 is in a second position relative to the fixed bracket 2, the rotating bracket 3 is arranged at an angle to the second side wall 202.

[0060] By providing a notch 203 on the second side wall 202, the rotating bracket 3 can be accommodated in the notch 203. The first side wall 201 and the second side wall 202 can be arranged at 90 degrees. Exemplarily, when the rotating bracket 3 is in the first position relative to the fixed bracket 2, the rotating bracket 3 is located at the notch 203, and the surface of the rotating bracket 3 away from the sound guide is in the same plane as the outer surface of the second side wall 202, so that the appearance of the electronic device is flat.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0062] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A sound-generating device, characterized in that: include: Sound-generating components; A fixed bracket connected to the sound-generating component; A rotating bracket is rotatably connected to the fixed bracket, and the rotating bracket is provided with a sound outlet hole; A sound guide, connecting the sound-generating component and the sound outlet, and the sound guide is retractable; When the rotating bracket is in the first position relative to the fixed bracket, the sound output direction of the sound output hole is a first sound output direction; When the rotating bracket is in the second position relative to the fixed bracket, the sound output direction of the sound output hole is a second sound output direction, and the first sound output direction is different from the second sound output direction.

2. The sound generating device according to claim 1, characterized in that: The sound guide is in the shape of a hollow tube; When the rotating bracket is in a first position relative to the fixed bracket, the sound guide is in a contracted state, and when the rotating bracket is in a second position relative to the fixed bracket, the sound guide is in a stretched state.

3. The sound-generating device according to claim 2, characterized in that: The sound guide member includes a plurality of sleeves, and the plurality of sleeves are sleeved in sequence.

4. The sound generating device according to claim 1, characterized in that: The sound outlet is formed at an end of the rotating bracket away from the fixed bracket.

5. The sound generating device according to claim 1, characterized in that: The sound-generating device further comprises a reset component, two ends of which are respectively connected to the fixed bracket and the rotating bracket, and the reset component is used to drive the rotating bracket to rotate from the second position to the first position or from the first position to the second position.

6. The sound generating device according to claim 5, characterized in that: The reset component comprises: A first bracket, comprising at least two connecting arms, wherein the plurality of connecting arms are hinged in sequence, and two ends of the first bracket are hinged to the fixed bracket and the rotating bracket respectively; A second bracket comprises at least two movable arms, wherein the plurality of movable arms are hinged in sequence, two ends of the second bracket are respectively hinged to the fixed bracket and the rotating bracket, and the first bracket is arranged around the second bracket; At least one elastic reset member, which connects the first bracket and the second bracket, and can drive the connecting arm and the movable arm to move so that the rotating bracket rotates from the second position to the first position or from the first position to the second position.

7. The sound generating device according to claim 6, characterized in that: The first bracket comprises a hinged first connecting arm and a second connecting arm, one of the first connecting arm and the second connecting arm is hinged to the rotating bracket, and the other is hinged to the fixed bracket; The second bracket comprises a hinged first movable arm and a second movable arm, one of the first movable arm and the second movable arm is hinged to the rotating bracket, and the other is hinged to the fixed bracket; The elastic reset member connects the second connecting arm and the first movable arm. When the rotating bracket is in a first position relative to the fixed bracket, the elastic reset member is in a contracted state. When the rotating bracket is in a second position relative to the fixed bracket, the elastic reset member is in a stretched state.

8. The sound generating device according to claim 7, characterized in that: The second connecting arm includes a first arm portion, a second arm portion and a connecting portion, one end of the first arm portion is hinged to the fixed bracket, and the other end is fixedly connected to the second arm portion, the second arm portion is hinged to the first connecting arm, and the connecting portion is protruded from the first arm portion toward the second bracket. When the rotating bracket is in the second position relative to the fixed bracket, the connecting portion is engaged with the first movable arm, and the extension directions of the first arm portion and the second arm portion are intersecting.

9. An electronic device, characterized in that: include: A sound generating device as claimed in any one of claims 1 to 8.

10. The electronic device according to claim 9, characterized in that: The electronic device comprises a middle frame, the middle frame comprises a first side wall, a second side wall and a notch, the first side wall and the second side wall are arranged at an angle, and the notch is arranged on the second side wall; The sound-emitting component and the fixed bracket are arranged on the first side wall, and the rotating bracket is arranged at the notch. When the rotating bracket is in a first position relative to the fixed bracket, the rotating bracket is located at the notch; when the rotating bracket is in a second position relative to the fixed bracket, the rotating bracket is arranged at an angle to the second side wall.

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