Multifunctional sound production device and electronic equipment

Abstract

The invention belongs to the technical field of acoustic-electric conversion, and discloses a multifunctional sound production device and electronic equipment, a sound production single body of the multifunctional sound production device comprises a vibration assembly fixed to a shell and a magnetic circuit assembly with a magnetic gap, a through hole is formed in the center of the magnetic circuit assembly, the magnetic circuit assembly is connected to the shell, and a through hole is formed in the center of the magnetic circuit assembly. The vibration assembly vibrates and sounds along a first direction under the driving of the magnetic circuit assembly; the bearing part is movably connected to the shell through an elastic arm and comprises a coil unit and a motor magnet which are contained in the through hole, the coil unit is connected to the bearing part, the motor magnet is connected to the magnetic circuit assembly, and the coil unit can drive the bearing part to vibrate in the second direction. According to the invention, the functions of the loudspeaker / receiver and the linear vibration motor are integrated, the overall size is smaller than that of the loudspeaker / receiver and the linear vibration motor which are separately arranged, and the loudspeaker / receiver and the linear vibration motor can be applied to electronic equipment with higher size requirements.

Description

[0001] This application is a divisional application. The application number of the original application is 202411377369.4, the application date is September 30, 2024, and the name of the invention is "Multifunctional sound-generating device and electronic device". Technical Field

[0002] The present invention relates to the technical field of sound-to-electric conversion, and in particular to a multifunctional sound-generating device and electronic equipment. Background Art

[0003] In the prior art, the speakers / receivers and linear vibration motors used in smart watches, smart phones and smart wearable devices are independently designed and processed into single-function components. The speakers / receivers only convert electrical signals into sound signals and transmit them, while the linear vibration motor only provides tactile feedback.

[0004] Since the speaker / receiver and the linear vibration motor are independent components, they need independent space when assembled into smart wearable devices. However, the space of smart wearable devices, such as watches, is very compact, which squeezes the space of other components (such as batteries), resulting in insufficient battery life and reduced performance. There is an urgent need for a multifunctional sound device that integrates a speaker / receiver and a linear vibration motor. Summary of the invention

[0005] The object of the present invention is to provide a multifunctional sound-generating device and an electronic device to solve the problem that the independent loudspeaker / receiver and the linear vibration motor in the prior art are both large in size.

[0006] As conceived above, the technical solution adopted by the present invention is:

[0007] Multifunctional sound generating device, including:

[0008] A housing having a receiving space;

[0009] A sound-generating unit is contained in the containing space, and comprises a vibration component fixed to the shell and a magnetic circuit component having a magnetic gap, wherein the magnetic circuit component is connected to the shell, a through hole is provided at the center of the magnetic circuit component, and the vibration component vibrates in a first direction to generate sound under the drive of the magnetic circuit component;

[0010] A carrier, received in the receiving space and movably connected to the housing via an elastic arm;

[0011] A motor assembly is accommodated in the accommodation space and includes a coil unit and a motor magnet accommodated in the through hole, the coil unit is connected to the carrier, the motor magnet is connected to the magnetic circuit assembly, and the coil unit can drive the carrier to vibrate along a second direction, wherein the first direction and the second direction are perpendicular to each other.

[0012] Optionally, the magnetic circuit assembly includes a yoke and a main magnet, the yoke is connected to an inner wall of the shell, and the main magnet is connected to the yoke.

[0013] Optionally, the magnetic yoke is arranged on one side of the vibration component in the first direction, the bearing member is arranged on a side of the magnetic yoke facing away from the vibration component, and the main magnet is arranged on a side of the magnetic yoke facing the vibration component;

[0014] The yoke is provided with a connection portion extending toward the vibration assembly and along the first direction, and the motor magnet is connected to the connection portion.

[0015] Optionally, the magnetic yoke includes a bearing portion and the through hole opened at the center, and a step structure formed by sinking down along the edge of the bearing portion close to the through hole, and the main magnet is connected to the step structure.

[0016] Optionally, the connecting portion is arranged on the step structure, and the motor magnet is connected to a side of the connecting portion facing away from the bearing portion.

[0017] Optionally, the main magnets are provided with two groups, the two groups of the main magnets are arranged opposite to each other in the second direction, the motor magnets are provided with two groups, the two groups of the motor magnets are located between the two main magnets and are arranged opposite to each other in the third direction, the connecting parts are provided with two, the two motor magnets are arranged one by one on the opposite surfaces of the two connecting parts, and any two of the first direction, the second direction and the third direction are perpendicular to each other;

[0018] The two groups of main magnets and the two groups of motor magnets surround and form a first space, and the coil unit is movably located in the first space.

[0019] Optionally, the magnetic circuit assembly further includes a side magnet, and the side magnet is connected to the bearing portion.

[0020] Optionally, the vibration assembly includes a frame connected to the housing, a diaphragm connected to the frame, and a voice coil inserted in the magnetic gap to drive the diaphragm to vibrate and produce sound; the frame is provided with a plurality of bending portions;

[0021] There are multiple side magnets, and the side magnets are arranged on the opposite sides of the two groups of main magnets and the opposite sides of the two groups of motor magnets. The multiple bending parts are connected to the multiple side magnets in a one-to-one correspondence.

[0022] Optionally, the magnetic circuit assembly also includes a magnetizer, which is arranged on the side of the main magnet facing away from the step structure and is connected to both groups of the main magnets. The magnetizer has an avoidance hole, and the motor magnet has a convex portion protruding from the connecting portion. The opposite back sides of the convex portions of the two groups of motor magnets abut against the hole wall of the avoidance hole.

[0023] Optionally, an edge of the bearing portion facing away from the through hole is provided with a flange extending along a first direction, and the flange is connected to an inner wall of the shell.

[0024] Optionally, a counterweight is provided on the carrier, and the counterweight includes a central portion and multiple edge portions; the central portion is connected between the coil unit and the carrier, and the multiple edge portions are all connected to the carrier and include two edge portions arranged opposite to each other in the vibration direction of the carrier.

[0025] Optionally, two elastic arms are provided and are arranged on both sides of the carrier along the second direction, and the two elastic arms are connected one-to-one with the two edge portions arranged opposite to each other in the vibration direction of the carrier; the elastic arms are elastically connected to the shell and suspend the central portion, multiple edge portions and the carrier in the accommodating space.

[0026] Optionally, the circumferential side surface of the bearing member is flush with the surface of the edge portion facing away from the central portion; or, the circumferential side surface of the bearing member is located on the inner side of the surface of the edge portion facing away from the central portion.

[0027] An electronic device comprises the multifunctional sound-generating device as described above.

[0028] Beneficial effects of the present invention:

[0029] The multifunctional sound-generating device provided by the present invention comprises a sound-generating unit, a carrier and a motor assembly which are all accommodated in the accommodation space of a shell, and the sound-generating unit comprises a vibration assembly and a magnetic circuit assembly, the magnetic circuit assembly can drive the vibration assembly to vibrate and generate sound in a first direction, thereby realizing the sound generation of the multifunctional sound-generating device, and the motor assembly comprises a coil unit and a motor magnet accommodated in a through hole, the coil unit is connected to the carrier and can drive the carrier to vibrate in a second direction, thereby realizing the linear vibration of the multifunctional sound-generating device, so that the multifunctional sound-generating device integrates the functions of a speaker / receiver and a linear vibration motor, and has a smaller volume, requires less space in an electronic device, and can be used in electronic devices with higher size requirements.

[0030] In addition, the motor magnet of the motor assembly and the main magnet and side magnet of the magnetic circuit assembly are all connected to the yoke so that they can be supported by the yoke, and the yoke is connected to the shell, so that the motor magnet, main magnet, side magnet, yoke and shell can be connected into a whole, which improves the overall structural strength, has higher reliability, and reduces the probability of the motor magnet, main magnet and side magnet detaching.

[0031] In addition, when the coil unit drives the carrier to vibrate, the motor magnet, main magnet, side magnet and yoke will not move, thereby ensuring the stability of the sound and reducing the impact of the motor assembly on the multifunctional sound-emitting device, thereby improving the structural stability of the entire multifunctional sound-emitting device and ensuring the stability of the operation of the multifunctional sound-emitting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0033] Figure 1 is a schematic structural diagram of a multifunctional sound-generating device provided by an embodiment of the present invention;

[0034] Figure 2 is an exploded view of a multifunctional sound-generating device provided by an embodiment of the present invention;

[0035] Figure 3 The structure of some multifunctional sound generating devices provided by the embodiments of the present invention is shown in FIG. Figure 1 ;

[0036] Figure 4 The structure of some multifunctional sound generating devices provided by the embodiments of the present invention is shown in FIG. Figure 2 ;

[0037] Figure 5 is a schematic diagram of a yoke structure provided by an embodiment of the present invention;

[0038] Figure 6 is an exploded view of a vibration assembly provided by an embodiment of the present invention;

[0039] Figure 7 is a top view of a multifunctional sound-generating device provided by an embodiment of the present invention;

[0040] Figure 8 The present invention Figure 7 AA section view shown;

[0041] Fig. 9 The present invention Figure 7 BB cross-sectional view shown.

[0042] In the figure:

[0043] 100, shell; 110, receiving space; 120, sound outlet; 130, top cover; 140, bottom shell; 200, sound unit; 210, vibration assembly; 211, diaphragm; 212, voice coil; 213, frame; 2131, bending part; 214, sound cavity; 220, magnetic circuit assembly; 221, counterweight; 2211, center part; 2212, edge part; 2213, elastic arm; 222, main magnet ; 223, edge magnet; 224, magnetic gap; 230, first space; 240, magnetic conductor; 241, avoidance hole; 300, yoke; 310, connecting part; 320, step structure; 321, through hole; 330, bearing part; 331, flange; 400, bearing member; 500, motor assembly; 510, coil unit; 520, motor magnet; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0044] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0045] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0046] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In the present invention, unless otherwise clearly stipulated and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0048] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0049] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly on the other element or there may be a central element.

[0050] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0051] like Figures 1 to 9 As shown, this embodiment provides a multifunctional sound-generating device that can simultaneously have the functions of a speaker / receiver and a linear vibration motor. The overall size is smaller than that of separately arranged speakers / receivers and linear vibration motors, and can be used in electronic devices with higher size requirements.

[0052] Before introducing this embodiment, the directions involved in this embodiment are explained. In this embodiment, a first direction X, a second direction Y and a third direction Z are defined, wherein any two of the first direction X, the second direction Y and the third direction Z are perpendicular to each other. For example, taking the multifunctional sound-emitting device in a rectangular shape as an example, the first direction X can be the height direction of the multifunctional sound-emitting device, one of the second direction Y and the third direction Z can be the length direction of the multifunctional sound-emitting device, and the other can be the width direction of the multifunctional sound-emitting device. The length and width of the multifunctional sound-emitting device can be the same or different, and this embodiment does not limit this. The length and width of the multifunctional sound-emitting device are greater than the height of the multifunctional sound-emitting device.

[0053] like Figure 1As shown, the multifunctional sound-generating device includes a housing 100, such as Figure 8 As shown, the housing 100 has a receiving space 110. For example, Figure 2 As shown, the housing 100 may include a bottom shell 140 and a top cover 130 connected to each other, and the bottom shell 140 and the top cover 130 cooperate to form a receiving space 110. Figure 8 As shown, the housing 100 may also be provided with a sound outlet 120 , which is in communication with the receiving space 110 and is used for transmitting the sound of the multifunctional sound-generating device. For example, the sound outlet 120 may be provided on the top cover 130 .

[0054] like Figure 2 As shown, the multifunctional sound-generating device further includes a sound-generating unit 200, a carrier 400, and a motor assembly 500, all of which are contained in the containing space 110. The sound-generating unit 200 is contained in the containing space 110, and includes a vibration assembly 210 fixed to the housing 100 and a magnetic circuit assembly 220 having a magnetic gap 224. A through hole 321 is provided at the center of the magnetic circuit assembly 220, and the vibration assembly 210 vibrates along the first direction X to generate sound under the drive of the magnetic circuit assembly 220, thereby enabling the multifunctional sound-generating device to have the function of generating sound.

[0055] The carrier 400 is received in the receiving space 110 , and the carrier 400 is movably connected to the housing 100 via the elastic arms 2213 , so that the carrier 400 can move and reset in the receiving space 110 .

[0056] The motor assembly 500 in this embodiment is accommodated in the accommodation space 110, and includes a coil unit 510 and a motor magnet 520 accommodated in the through hole 321. The coil unit 510 is connected to the carrier 400, and the motor magnet 520 is connected to the magnetic circuit assembly 220. It should be noted that the coil unit 510 can drive the carrier 400 to vibrate along the second direction Y, thereby enabling the multifunctional sound-generating device to have the function of linear vibration.

[0057] For example, the coil unit 510 may include a motor winding coil and an I-shaped iron core, and the motor winding coil is wound on the iron core. After the motor winding coil is energized, it reciprocates in a direction perpendicular to the first direction X (for example, the second direction Y) under the action of the magnetic field of the motor magnet 520, thereby driving the bearing 400 to reciprocate in a direction perpendicular to the first direction X to achieve linear vibration.

[0058] The multifunctional sound-generating device provided in this embodiment comprises a sound-generating unit 200, a carrier 400 and a motor assembly 500 which are all accommodated in the accommodation space 110 of the shell 100, and the sound-generating unit 200 comprises a vibration assembly 210 and a magnetic circuit assembly 220, the magnetic circuit assembly 220 can drive the vibration assembly 210 to vibrate and generate sound in a first direction X, thereby realizing the sound generation of the multifunctional sound-generating device, and the motor assembly 500 comprises a coil unit 510 and a motor magnet 520 accommodated in a through hole 321, the coil unit 510 is connected to the carrier 400, and can drive the carrier 400 to vibrate along a second direction Y, thereby realizing the linear vibration of the multifunctional sound-generating device, so that the multifunctional sound-generating device integrates the functions of a speaker / receiver and a linear vibration motor, and has a smaller volume, requires less space in electronic devices, and can be used in electronic devices with higher size requirements.

[0059] Alternatively, if Figure 3 As shown, the magnetic circuit assembly 220 in this embodiment includes a yoke 300, a main magnet 222 and a side magnet 223. The yoke 300 is connected to the inner wall of the housing 100. The side magnet 223 and the main magnet 222 are both connected to one side of the yoke 300. The side magnet 223 and the main magnet 222 are spaced apart and form a magnetic gap 224. The yoke 300 in this embodiment is connected to the inner wall of the housing 100 to be supported by the housing 100, and the main magnet 222 and the side magnet 223 are both connected to one side of the yoke 300, so that the main magnet 222 and the side magnet 223 can be indirectly supported on the housing 100 through the yoke 300.

[0060] Optionally, the material of the carrier 400 is a hard material, such as metal, plastic, etc. Preferably, the material of the carrier 400 is steel.

[0061] In this embodiment, the motor magnet 520 of the motor assembly 500 and the main magnet 222 and the side magnet 223 of the magnetic circuit assembly 220 are all connected to the yoke 300 so that they can be supported by the yoke 300, and the yoke 300 is connected to the shell 100, so that the motor magnet 520, the main magnet 222, the side magnet 223, the yoke 300 and the shell 100 can be connected into a whole, thereby improving the overall structural strength, having higher reliability, and reducing the probability of the motor magnet 520, the main magnet 222, and the side magnet 223 detaching.

[0062] In addition, when the coil unit 510 drives the carrier 400 to vibrate, the motor magnet 520, the main magnet 222, the side magnet 223 and the yoke 300 will not move, thereby ensuring the stability of the sound and reducing the influence of the motor assembly 500 on the multifunctional sound-emitting device, thereby improving the structural stability of the entire multifunctional sound-emitting device and ensuring the stability of the operation of the multifunctional sound-emitting device.

[0063] For example, please combine Figure 2 and Fig. 9 The yoke 300 is disposed on one side of the vibration assembly 210 in the first direction X, the carrier 400 is disposed on the side of the yoke 300 facing away from the vibration assembly 210 , and the main magnet 222 and the side magnet 223 are both disposed on the side of the yoke 300 facing the vibration assembly 210 .

[0064] In some optional embodiments, such as Figure 5 As shown, the yoke 300 is provided with a connecting portion 310 extending along the first direction X. Specifically, the connecting portion 310 is provided on the side of the yoke 300 facing the vibration assembly 210. The motor magnet 520 is connected to the connecting portion 310, that is, the motor magnet 520 is located on the side of the yoke 300 facing the vibration assembly 210. By providing the connecting portion 310, the motor magnet 520 is fixed, and the space inside the shell 100 can also be adjusted, thereby improving the space utilization. For example, the large surface of the motor magnet 520 is connected to the connecting portion 310, which increases the connection strength between the two, reduces the risk of the motor magnet 520 falling off when the multifunctional sound-generating device vibrates violently, and has high reliability. Optionally, the motor magnet 520 can be adhered to the connecting portion 310, and can also be connected to the connecting portion 310 by other connection methods.

[0065] Exemplarily, the yoke 300 may be in a plate shape, and the yoke 300 extends along a plane where the second direction Y and the third direction Z are located.

[0066] Alternatively, see Figure 5 The yoke 300 includes a bearing portion 330 and the above-mentioned through hole 321 opened at the center position of the bearing portion 330, and a step structure 320 formed by sinking along the edge of the bearing portion 330 close to the through hole 321, that is, part of the surface of the bearing portion 330 sinks to form the step structure 320. The side magnet 223 is connected to the bearing portion 330, and the main magnet 222 is connected to the step structure 320. By connecting the main magnet 222 to the step structure 320 formed by sinking, the size of the main magnet 222 in the first direction X can be larger, and the size of the multifunctional sound-generating device in the first direction X will not be increased, so that the components in the multifunctional sound-generating device can be more compact. In some optional embodiments, the through hole 321 is used for the coil unit 510 to pass through and connect to the bearing member 400.

[0067] For example, see Figure 5, the connection part 310 is arranged on the step structure 320, and the motor magnet 520 is connected to the side of the connection part 310 facing away from the bearing part 330, that is, the motor magnet 520 is arranged on the side of the connection part 310 facing the through hole 321. By arranging the connection part 310 on the step structure 320, the space surrounded by the main magnet 222 and the side magnet 223 can be fully utilized, and the compactness of the multifunctional sound-generating device in the first direction X is further improved, which is conducive to the miniaturization of the multifunctional sound-generating device, and the motor magnet 520 can be as close to the bearing part 400 as possible, so that the distance between the coil unit 510 and the bearing part 400 can be small, which is convenient for the connection between the two.

[0068] Optionally, the edge of the bearing portion 330 facing away from the through hole 321 is provided with a flange 331 extending along the first direction X, and the flange 331 is connected to the inner wall of the housing 100, so that the flange 331 and the inner wall of the housing 100 have a larger contact area, so as to have a higher connection strength. For example, a plurality of flanges 331 may be provided, and the plurality of flanges 331 are arranged at intervals. By providing the flanges 331 at intervals, the weight of the yoke 300 can be reduced compared to providing a ring-shaped structure, thereby reducing the overall weight of the multifunctional sound-generating device.

[0069] Exemplarily, the yoke 300 may also be provided with a hollow hole or an opening on the edge to reduce its own weight, thereby making the multifunctional sound-generating device lighter and improving the lightweight of the multifunctional sound-generating device.

[0070] In some optional embodiments, the yoke 300 is an integrated structure, that is, the bearing portion 330, the step structure 320, the connecting portion 310 and the flange 331 can all be made of a single plate to have a higher structural strength. Of course, it is understandable that the yoke 300 can also be a split structure, which is not limited in this embodiment.

[0071] Optionally, the main magnet 222 in this embodiment is provided with two groups, such as Figure 3 As shown, the two groups of main magnets 222 are arranged opposite to each other in the second direction Y. Two groups of motor magnets 520 are provided, and the two groups of motor magnets 520 are located between the two main magnets 222 and are arranged opposite to each other in the third direction Z. The coil unit 510 can drive the carrier 400 to vibrate in the second direction Y. Two connecting parts 310 are provided, and the two motor magnets 520 are arranged on the opposite surfaces of the two connecting parts 310 in a one-to-one correspondence to achieve the fixation of the two motor magnets 520.

[0072] By arranging the two motor magnets 520 between the two main magnets 222, the maximum distance between the two groups of motor magnets 520 in the third direction Z will not be greater than the size of the two groups of main magnets 222 in the third direction Z. Therefore, the two groups of main magnets 222 and the two groups of motor magnets 520 can make full use of the space in the third direction Z, which is further beneficial to the miniaturization of the multifunctional sound-emitting device.

[0073] In some optional embodiments, the two connecting parts 310 are also located between the two main magnets 222. For example, the two ends of the main magnet 222 in the third direction Z are flush with the surfaces opposite to the two connecting parts 310. On the one hand, the length of the main magnet 222 can be smaller. On the other hand, the overall size of the main magnet 222, the connecting parts 310 and the motor magnet 520 can be smaller, so that the size of the step structure 320 can be smaller, which is further beneficial to the miniaturization and lightweight of the multifunctional sound-generating device.

[0074] Alternatively, if Fig. 9 As shown, two groups of main magnets 222 and two groups of motor magnets 520 are arranged to form a first space 230, and the coil unit 510 can be movably located in the first space 230, so that the coil unit 510 can be arranged opposite to the motor magnet 520. By arranging the coil unit 510 in the first space 230, the magnetic circuit assembly 220 and the motor assembly 500 can achieve clearance fit, so that the overall structure of the magnetic circuit assembly 220 and the motor assembly 500 is relatively compact, and the multifunctional sound-generating device can be made thinner and lighter in the first direction X. In this embodiment, the first space 230 is connected to the through hole 321.

[0075] In some optional embodiments, such as Figure 3 As shown, a plurality of side magnets 223 are provided. Side magnets 223 are provided on opposite sides of the two groups of main magnets 222 and on opposite sides of the two groups of motor magnets 520, and a magnetic gap 224 is formed between the main magnets 222 and the side magnets 223. For example, a magnetic gap 224 can also be formed between the motor magnets 520 and the side magnets 223. Such a configuration can enhance the magnetic field strength and also enhance the sound effect of the vibration component 210.

[0076] In some optional embodiments, such as Figure 6 As shown, the vibration assembly 210 includes a frame 213 connected to the housing 100, a diaphragm 211 connected to the frame 213, and a voice coil 212 inserted in the magnetic gap 224 to drive the diaphragm 211 to vibrate and generate sound. Fig. 9As shown, a sound cavity 214 is formed between the diaphragm 211 and the top cover 130, and the sound cavity 214 is connected to the sound outlet 120. The frame 213 is provided with a plurality of bending portions 2131, and the plurality of bending portions 2131 are connected to the plurality of side magnets 223 in a one-to-one correspondence, so as to further improve the integrity of the vibration assembly 210 and the side magnets 223, and ensure the vibration sound performance of the vibration assembly 210.

[0077] Optionally, the bending portion 2131 extends along the second direction Y or the third direction Z, and the large surface of the bending portion 2131 contacts the edge magnet 223 to have a larger connection area with the edge magnet 223 and improve the connection strength. In this embodiment, the bending portion 2131 sinks relative to the frame 213 and contacts the edge magnet 223 to avoid positional interference between the frame 213 and the edge magnet 223. In this embodiment, there are four edge magnets 223 and four bending portions 2131.

[0078] In some optional embodiments, the surface of the side magnet 223 facing away from the yoke 300 is flush with the surface of the main magnet 222 facing away from the step structure 320. On the basis of ensuring the formation of the magnetic gap 224, the side magnet 223 and the main magnet 222 will not occupy an additional large size in the first direction X, which is conducive to reducing the size of the multifunctional sound-generating device in the first direction X. Similarly, the surface of the coil unit 510 facing the vibration component 210 is flush with the surface of the motor magnet 520 facing the vibration component 210, so that the coil unit 510 and the motor magnet 520 will not occupy too much space in the first direction X on the basis of ensuring the vibration function, which is conducive to reducing the size of the multifunctional sound-generating device in the first direction X.

[0079] In some optional embodiments, such as Figure 2 and Figure 3 As shown, the magnetic circuit assembly 220 further includes a magnetizer 240. The magnetizer 240 is disposed on the side of the main magnet 222 facing away from the step structure 320, that is, the magnetizer 240 is disposed on the top surface of the main magnet 222 and is connected to both groups of the main magnets 222. The magnetizer 240 can be used for magnetic conduction.

[0080] Further optionally, the magnetizer 240 has an avoidance hole 241, that is, the magnetizer 240 is annular. In addition, the magnetizer 240 is also connected to two connecting parts 310. The motor magnet 520 has a convex portion (not shown in the figure) protruding from the connecting part 310, that is, part of the motor magnet 520 is connected to the connecting part 310, and also has a part that is not connected to the connecting part 310. The opposite back surfaces of the convex portions of the two groups of motor magnets 520 are in contact with the hole wall of the avoidance hole 241, so that the magnetizer 240 can also be used to limit the motor magnet 520, further improving the stability of the motor magnet 520. The avoidance hole 241 in this embodiment is used to avoid the magnetic gap 224, so that the voice coil 212 of the vibration assembly 210 can be smoothly inserted into the magnetic gap 224.

[0081] It should be noted that the surface of the magnetizer 240 facing away from the main magnet 222 is flush with the top surface of the motor magnet 520, that is, the height of the protrusion is equal to the thickness of the magnetizer 240, so that the appearance of the magnetic circuit assembly 220 is neater and avoids unevenness.

[0082] Alternatively, if Figure 3 As shown, the multifunctional sound-generating device further includes a counterweight 221 , which is disposed on the supporting member 400 , so that when the supporting member 400 moves, the counterweight 221 can be driven to move.

[0083] Further optionally, if Figure 4 As shown, the counterweight 221 includes a central portion 2211 and a plurality of edge portions 2212. The central portion 2211 is connected between the coil unit 510 and the carrier 400, that is, the coil unit 510 is connected to the carrier 400 through the central portion 2211. Of course, it can be understood that the coil unit 510 can also be directly connected to the carrier 400, or the coil unit 510 is connected to the carrier 400 through other components, which is not limited in this embodiment.

[0084] When the coil unit 510 is connected to the carrier 400 through the central portion 2211, since the coil unit 510 is located on the side of the yoke 300 facing away from the carrier 400, the central portion 2211 passes through the step structure 320 and is connected to the coil unit 510. In this embodiment, there is a gap between the yoke 300 and the carrier 400 so that the yoke 300 does not interfere with the movement of the carrier 400.

[0085] In this embodiment, the plurality of edge portions 2212 are all connected to the carrier 400. For example, the plurality of edge portions 2212 are all disposed on the side of the carrier 400 facing the yoke 300. In some optional embodiments, the plurality of edge portions 2212 are disposed at intervals along the circumference of the carrier 400. The plurality of edge portions 2212 include two edge portions 2212 disposed opposite to each other in the vibration direction of the carrier 400.

[0086] Optionally, two elastic arms 2213 may be provided, and the two elastic arms 2213 are arranged on both sides of the carrier 400 along the second direction Y. The two elastic arms 2213 are connected to the two edge portions 2212 arranged opposite to each other in the vibration direction of the carrier 400 in a one-to-one correspondence, and the elastic arms 2213 are elastically connected to the housing 100 and suspend the central portion 2211, the plurality of edge portions 2212 and the carrier 400 in the receiving space 110, so as to reset the central portion 2211, the plurality of edge portions 2212 and the carrier 400.

[0087] Exemplarily, there are four edge portions 2212, the carrier 400 is a square plate-shaped structure, and the four edge portions 2212 are arranged at four edge positions of the carrier 400. Two edge portions 2212 of the four edge portions 2212 are connected to the two elastic arms 2213 in a one-to-one correspondence, and the other two edge portions 2212 have a protruding structure protruding toward the edge magnet 223 (not shown in the figure).

[0088] In some optional embodiments, the circumferential side of the carrier 400 is flush with the surface of the edge portion 2212 facing away from the center portion 2211, or the circumferential side of the carrier 400 is located on the inner side of the surface of the edge portion 2212 facing away from the center portion 2211, so that the size of the carrier 400 does not increase the size of the shell 100, thereby facilitating the miniaturization of the multifunctional sound-emitting device.

[0089] This embodiment also provides an electronic device, including the above-mentioned multifunctional sound-emitting device. The electronic device does not need to reserve a large installation space for the multifunctional sound-emitting device. Therefore, the battery or other components therein can be larger in size while being of the same size, thereby improving the battery life or other performance of the electronic device.

[0090] The electronic device may include a mobile phone, a tablet personal computer, a laptop, a personal digital assistant (PDA), a camera, a personal computer, a laptop, a vehicle-mounted device, a smart wearable device, augmented reality (AR) glasses, AR helmets, virtual reality (VR) glasses, VR helmets, fixed-line handsets (pickups), medical auxiliary equipment (such as hearing aids), various headphones (such as wireless headphones or wired headphones), and other devices with speakers. The embodiments of the present application do not impose any special restrictions on the specific form of the above-mentioned electronic devices.

[0091] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A multifunctional sound-generating device, characterized in that: include: A housing (100), wherein the housing (100) has a receiving space (110); A sound-generating unit (200) is contained in the containing space (110), comprising a vibration component (210) fixed to the housing (100) and a magnetic circuit component (220) having a magnetic gap (224); the magnetic circuit component (220) is connected to the housing (100); a through hole (321) is provided at the center of the magnetic circuit component (220); and the vibration component (210) vibrates along a first direction (X) to generate sound under the drive of the magnetic circuit component (220); A carrier (400) is accommodated in the accommodation space (110) and is movably connected to the housing (100) via an elastic arm (2213); A motor assembly (500) is accommodated in the accommodation space (110) and includes a coil unit (510) and a motor magnet (520) accommodated in the through hole (321), wherein the coil unit (510) is connected to the carrier (400), and the motor magnet (520) is connected to the magnetic circuit assembly (220), and the coil unit (510) can drive the carrier (400) to vibrate along a second direction (Y), wherein the first direction (X) and the second direction (Y) are perpendicular to each other.

2. The multifunctional sound-generating device according to claim 1, characterized in that: The magnetic circuit assembly (220) comprises a yoke (300) and a main magnet (222); the yoke (300) is connected to the inner wall of the housing (100); and the main magnet (222) is connected to the yoke (300).

3. The multifunctional sound-generating device according to claim 2, characterized in that: The yoke (300) is arranged on one side of the vibration component (210) in a first direction (X), the bearing member (400) is arranged on a side of the yoke (300) facing away from the vibration component (210), and the main magnet (222) is arranged on a side of the yoke (300) facing toward the vibration component (210); The yoke (300) is provided with a connecting portion (310) extending toward the vibration component (210) and along the first direction (X), and the motor magnet (520) is connected to the connecting portion (310).

4. The multifunctional sound-generating device according to claim 3, characterized in that: The magnetic yoke (300) comprises a bearing portion (330), a through hole (321) opened at a central position, and a step structure (320) formed by sinking along an edge of the bearing portion (330) close to the through hole (321), and the main magnet (222) is connected to the step structure (320).

5. The multifunctional sound-generating device according to claim 4, characterized in that: The connecting portion (310) is arranged on the step structure (320), and the motor magnet (520) is connected to a side of the connecting portion (310) facing away from the bearing portion (330).

6. The multifunctional sound-generating device according to claim 5, characterized in that: The main magnets (222) are provided in two groups, and the two groups of the main magnets (222) are arranged opposite to each other in the second direction (Y); the motor magnets (520) are provided in two groups, and the two groups of the motor magnets (520) are located between the two main magnets (222) and are arranged opposite to each other in the third direction (Z); the connecting parts (310) are provided in two groups, and the two motor magnets (520) are arranged one by one on the opposite surfaces of the two connecting parts (310); any two of the first direction (X), the second direction (Y) and the third direction (Z) are perpendicular to each other; The two groups of main magnets (222) and the two groups of motor magnets (520) are arranged to form a first space (230), and the coil unit (510) is movably located in the first space (230).

7. The multifunctional sound-generating device according to claim 6, characterized in that: The magnetic circuit component (220) further comprises a side magnet (223), wherein the side magnet (223) is connected to the bearing portion (330).

8. The multifunctional sound-generating device according to claim 7, characterized in that: The vibration component (210) comprises a frame (213) connected to the housing (100), a diaphragm (211) connected to the frame (213), and a voice coil (212) inserted in the magnetic gap (224) to drive the diaphragm (211) to vibrate and produce sound; the frame (213) is provided with a plurality of bending portions (2131); There are multiple edge magnets (223), and the two opposite sides of the two groups of main magnets (222) and the two opposite sides of the two groups of motor magnets (520) are each provided with the edge magnets (223), and the multiple bending portions (2131) are connected to the multiple edge magnets (223) in a one-to-one correspondence.

9. The multifunctional sound-generating device according to claim 6, characterized in that: The magnetic circuit assembly (220) also includes a magnetizer (240), which is arranged on the side of the main magnet (222) facing away from the step structure (320) and is connected to both groups of the main magnets (222). The magnetizer (240) has an avoidance hole (241), and the motor magnet (520) has a convex portion protruding from the connecting portion (310). The opposite back sides of the convex portions of the two groups of motor magnets (520) are in contact with the hole wall of the avoidance hole (241).

10. The multifunctional sound-generating device according to any one of claims 4 to 8, characterized in that: The edge of the bearing portion (330) facing away from the through hole (321) is provided with a flange (331) extending along the first direction (X), and the flange (331) is connected to the inner wall of the shell (100).

11. The multifunctional sound-generating device according to any one of claims 1 to 9, characterized in that: A counterweight (221) is provided on the carrier (400), and the counterweight (221) includes a central portion (2211) and a plurality of edge portions (2212); the central portion (2211) is connected between the coil unit (510) and the carrier (400), and the plurality of edge portions (2212) are all connected to the carrier (400), and include two edge portions (2212) that are arranged opposite to each other in the vibration direction of the carrier (400).

12. The multifunctional sound-generating device according to claim 11, characterized in that: Two elastic arms (2213) are provided and are arranged on both sides of the supporting member (400) along the second direction (Y), and the two elastic arms (2213) are connected one-to-one with the two edge portions (2212) arranged opposite to each other in the vibration direction of the supporting member (400); the elastic arms (2213) are elastically connected to the shell (100) and suspend the central portion (2211), multiple edge portions (2212) and the supporting member (400) in the receiving space (110).

13. The multifunctional sound-generating device according to claim 11, characterized in that: The circumferential side surface of the supporting member (400) is flush with the surface of the edge portion (2212) facing away from the center portion (2211); or, the circumferential side surface of the supporting member (400) is located on the inner side of the surface of the edge portion (2212) facing away from the center portion (2211).

14. An electronic device, characterized in that It comprises a multifunctional sound-generating device as described in any one of claims 1-13.

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