Sound production device and electronic equipment

Abstract

The invention discloses a sound production device and electronic equipment. The disclosed sound production device comprises a first magnetic assembly, a second magnetic assembly and a vibration assembly, the vibration assembly comprises a voice coil, a connecting piece and a vibrating diaphragm; a magnetic gap is formed between the first magnetic assembly and the second magnetic assembly; at least part of the voice coil is arranged in the magnetic gap, the first magnetic assembly is located between the vibrating diaphragm and the magnetic gap, and the first end of the connecting piece is connected with the voice coil; the second end of the connecting piece is connected with the vibrating diaphragm, and the connecting piece is used for driving the vibrating diaphragm to vibrate based on the voice coil. According to the scheme, the problem that a sound production device related to the related technology is relatively large in thickness and is relatively difficult to adapt to the thinner and thinner design requirement of electronic equipment can be solved.

Description

Technical Field

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

[0002] At present, electronic devices (such as mobile phones, tablet computers, etc.) are usually equipped with sound devices (such as speakers, receivers). As user needs increase, users have higher and higher requirements on the performance of electronic devices, and electronic devices are becoming thinner and thinner. Correspondingly, the sound devices in electronic devices need to be thinner to better adapt to the increasingly thin electronic devices. However, in the sound devices of the related art, the diaphragm is stacked on top of the magnetic component, and the thickness of the sound device is still relatively large, which makes it difficult to adapt to the increasingly thin design requirements of electronic devices. Summary of the invention

[0003] The invention discloses a sound-generating device and an electronic device, so as to solve the problem that the sound-generating device involved in the related art has a large thickness and is difficult to adapt to the design requirements of electronic devices that are becoming thinner and thinner.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: In a first aspect, the present application discloses a sound-generating device, comprising a first magnetic component, a second magnetic component and a vibration component; the vibration component comprises a voice coil, a connector and a diaphragm; a magnetic gap is formed between the first magnetic component and the second magnetic component; at least a portion of the voice coil is disposed in the magnetic gap, the first magnetic component is located between the diaphragm and the magnetic gap, a first end of the connector is connected to the voice coil; a second end of the connector is connected to the diaphragm, and the connector is used to drive the diaphragm to vibrate based on the voice coil.

[0005] In a second aspect, the present application discloses an electronic device, which includes a device housing and the sound-generating device described in the first aspect, wherein the sound-generating device is disposed inside the device housing.

[0006] The technical solution adopted by the present invention can achieve the following technical effects: The sound-generating device disclosed in the embodiment of the present invention improves the structure of the sound-generating device by arranging the first magnetic component between the diaphragm and the magnetic gap, so that the diaphragm can be arranged in a range where the heights of the first magnetic component and the second magnetic component are equivalent to vibrate and produce sound. This structure can ensure that the diaphragm vibrates and produces sound while avoiding the diaphragm from overlapping with the first magnetic component and the second magnetic component in the movement direction of the voice coil, which is conducive to reducing the stacking height of the sound-generating device in the movement direction of the voice coil, thereby making the sound-generating device thinner and more suitable for thinner electronic devices.

[0007] At the same time, since the diaphragm will not overlap with the first magnetic component and the second magnetic component in the direction of movement of the voice coil, in the design process of the sound-generating device, it is beneficial to make full use of the space of the sound-generating device in the vibration direction to arrange the thicker first magnetic component and the second magnetic component as much as possible, so as to strengthen the magnetic field strength in the magnetic gap, and then improve the magnetic field driving force of the sound-generating device, and finally improve the driving effect on the voice coil and improve the sound effect of the sound-generating device. Moreover, this structure is also more conducive to making the depth of the magnetic gap formed between the first magnetic component and the second magnetic component larger, so that the voice coil is not easy to completely separate from the magnetic gap during movement, and thus can avoid the sound distortion caused by the voice coil separating from the magnetic gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a partial structural schematic diagram of the sound-generating device disclosed in the embodiment of the present invention; Figure 2 is a cross-sectional view of a sound-generating device disclosed in an embodiment of the present invention; Figure 3 It is a schematic diagram of a matching structure of a first magnetic component and a second magnetic component disclosed in an embodiment of the present invention; Figure 4 It is a schematic diagram of the structure of an electronic device disclosed in an embodiment of the present invention.

[0009] Description of reference numerals: 10-first magnetic assembly, 11-first magnet, 12-second magnet, 13-first magnetic conductive member, 20-second magnetic assembly, 21-third magnet, 22-fourth magnet, 23-second magnetic conductive member, 30-vibration component, 31-voice coil, 32-connecting piece, 321-connecting rod, 322-diaphragm connecting part, 33-diaphragm, 331-diaphragm body, 332-elastic connecting piece, 40-device housing, 41-magnetic gap, 42-diaphragm accommodation space, 421-front cavity, 422-rear cavity, 43-sound outlet, 50-third magnetic conductive member, 60-fourth magnetic conductive member, 01-sound-generating device, 02-equipment housing. DETAILED DESCRIPTION

[0010] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0011] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more.

[0012] In the description of the present invention, 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0013] Please refer to Figures 1 to 4 The embodiment of the present application discloses a sound-generating device 01, and the disclosed sound-generating device 01 can be applicable to electronic devices. The disclosed sound-generating device 01 can be a speaker or a receiver, and the embodiment of the present invention does not limit the specific type of the sound-generating device 01. The sound-generating device 01 disclosed in the embodiment of the present invention can include a first magnetic component 10, a second magnetic component 20, and a vibration component 30.

[0014] The first magnetic component 10 and the second magnetic component 20 are used to form a magnetic field when the sound-generating device 01 is working, so that the vibration component 30 is subjected to the magnetic field force in the magnetic field and vibrates to generate sound. Specifically, the magnetic poles of the parts of the first magnetic component 10 and the second magnetic component 20 that are opposite to each other are opposite, thereby forming the magnetic field. In an embodiment of the present invention, a magnetic gap 41 is formed between the first magnetic component 10 and the second magnetic component 20. The magnetic field formed by the first magnetic component 10 and the second magnetic component 20 is at least filled in the magnetic gap 41.

[0015] The vibration assembly 30 includes a voice coil 31, a connector 32, and a diaphragm 33. The voice coil 31 is actually a coil. When the sound-generating device 01 performs sound-generating operation, the voice coil 31 is energized and becomes an energized coil. At least part of the voice coil 31 is disposed in the magnetic gap 41, so as to be in the magnetic field formed by the first magnetic assembly 10 and the second magnetic assembly 20. In order to better realize the movement of the voice coil 31, the voice coil 31 can be completely located in the magnetic gap 41.

[0016] The first magnetic assembly 10 is located between the diaphragm 33 and the magnetic gap 41, so that the diaphragm 33 will not be overlapped on the second magnetic assembly 20 or the magnetic gap 41 in the thickness direction of the sound-generating device 01. It should be noted that the movement direction of the voice coil 31 is consistent with the thickness direction of the sound-generating device 01. In this case, the diaphragm 33 does not form a stacked structure with the first magnetic assembly 10 or the second magnetic assembly 20 in the movement direction of the voice coil 31. In one embodiment, the distribution direction of the diaphragm 33 and the first magnetic assembly 10 can be perpendicular to the movement direction of the voice coil 31.

[0017] The connecting member 32 performs a connecting function. Specifically, a first end of the connecting member 32 is connected to the voice coil 31. A second end of the connecting member 32 is connected to the diaphragm 33, and the voice coil 31 is used to drive the diaphragm 33 to vibrate based on the voice coil 31. In other words, when the voice coil 31 moves, the diaphragm 33 can be driven to vibrate through the connecting member 32, and the vibration direction of the diaphragm 33 is consistent with the movement direction of the voice coil 31.

[0018] In one embodiment, the first end of the connector 32 can be movably connected to the voice coil 31, and the second end of the connector 32 can be movably connected to the diaphragm 33. Any movable connection method is acceptable as long as the diaphragm 33 can be driven to vibrate by the connector 32 when the voice coil 31 is energized and subjected to a magnetic field force. In another embodiment, the first end of the connector 32 can be fixedly connected to the voice coil 31 by bonding, threaded connector connection, etc. The second end of the connector 32 can be fixedly connected to the diaphragm 33 by bonding, threaded connector connection, etc. The connector 32 is fixedly connected to the voice coil 31 and the diaphragm 33, respectively, so that the diaphragm 33 can be driven to vibrate more stably and effectively to achieve a better sound effect.

[0019] The working process of the sound-generating device disclosed in the embodiment of the present invention is as follows: after receiving the sound-generating signal, the voice coil 31 will become an energized coil, and then will be subjected to the magnetic field force in the magnetic gap 41 to reciprocate. The movement of the voice coil 31 will drive the diaphragm 33 to vibrate through the connecting member 32, and the vibration of the diaphragm 33 will drive the air to vibrate and finally produce sound. The first magnetic component 10 is located between the diaphragm 33 and the magnetic gap 41, so that the diaphragm 33 can be at the same or substantially the same height as the magnetic gap 41 in the thickness direction of the sound-generating device, so that the diaphragm 33 will not be overlapped on the first magnetic component 10 and the second magnetic component 20 in the movement direction of the voice coil 31, while still ensuring the sound generation.

[0020] The sound-generating device disclosed in the embodiment of the present invention improves the structure of the sound-generating device by disposing the first magnetic component 10 between the diaphragm 33 and the magnetic gap 41, so that the diaphragm 33 can be arranged in a range where the heights of the first magnetic component 10 and the second magnetic component 20 are equivalent to vibrate and produce sound. This structure can ensure that the diaphragm 33 vibrates and produces sound while avoiding the diaphragm 33 from being overlapped with the first magnetic component 10 and the second magnetic component 20 in the vibration direction of the voice coil 31, which is conducive to reducing the stacking height of the sound-generating device in the vibration direction of the voice coil 31, thereby making the sound-generating device thinner and more suitable for thinner electronic devices.

[0021] At the same time, since the diaphragm 33 will not overlap with the first magnetic assembly 10 and the second magnetic assembly 20 in the direction of movement of the voice coil 31, in the design process of the sound-generating device, it is beneficial to make full use of the space of the sound-generating device 01 in the vibration direction to arrange the thicker first magnetic assembly 10 and the second magnetic assembly 20 as much as possible, so as to strengthen the magnetic field strength in the magnetic gap 41, and then improve the magnetic field driving force of the sound-generating device, and finally improve the driving effect on the voice coil 31 and improve the sound effect of the sound-generating device. Moreover, this structure is also more conducive to making the depth of the magnetic gap 41 formed between the first magnetic assembly 10 and the second magnetic assembly 20 larger, so that the voice coil 31 is not easy to completely separate from the magnetic gap 41 during movement, and thus can avoid the sound distortion caused by the voice coil 31 separating from the magnetic gap 41.

[0022] The sound-generating device 01 disclosed in the embodiment of the present invention may further include a device housing 40. The device housing 40 may serve as a peripheral structural member of the sound-generating device 01, and may provide a mounting base and protection for other components of the sound-generating device 01. Specifically, the first magnetic assembly 10, the second magnetic assembly 20, and the vibration assembly 30 are disposed in the device housing 40, thereby achieving installation in the device housing 40 and being protected by the device housing 40. In this case, the magnetic gap 41 formed between the first magnetic assembly 10 and the second magnetic assembly 20 may be considered as a portion of the space in the device housing 40.

[0023] A diaphragm accommodating space 42 may be provided in the device housing 40, and the diaphragm accommodating space 42 is used to accommodate the diaphragm 33. The first magnetic component 10 is located between the diaphragm accommodating space 42 and the magnetic gap 41, and the diaphragm 33 is arranged in the diaphragm accommodating space 42. In an embodiment of the present invention, the edge of the diaphragm 33 is connected to the device housing 40. The diaphragm 33 divides the diaphragm accommodating space 42 into a front cavity 421 and a rear cavity 422 that are isolated from each other. The device housing 40 is also provided with a sound outlet 43, and the sound outlet 43 is connected to the front cavity 421. The front cavity 421 and the rear cavity 422 are isolated from each other, thereby preventing the diaphragm 33 from short-circuiting sound during vibration. In the process of the diaphragm 33 vibrating and making sound, the sound generated by the vibration of the air pushed by the diaphragm 33 will be transmitted outside the sound-emitting device 01 through the sound outlet 43. In this structure, the device housing 40 not only accommodates the first magnetic component 10, the second magnetic component 20 and the vibration component 30, and provides them with installation positions and protection, but is also used to form a diaphragm accommodating space 42 to accommodate the diaphragm 33, and cooperates with the diaphragm 33 to form the front cavity 421 and the rear cavity 422 of the sound-emitting device 01. It can be seen that the device housing 40 disclosed in the embodiment of the present invention can undoubtedly realize multiple functions, and makes it easier for the sound-emitting device 01 to form an integrated modular structure, which is beneficial to the overall installation of the sound-emitting device 01 in the electronic device.

[0024] Of course, in other embodiments, the first magnetic component 10 and the second magnetic component 20 may not be arranged in the device housing 40. The device housing 40 may only accommodate the diaphragm 33 and cooperate with the diaphragm 33 to form the front cavity 421 and the rear cavity 422. For example, the first magnetic component 10 and the second magnetic component 20 are located outside the device housing 40, the first end of the connecting member 32 is located outside the device housing 40 and is connected to the voice coil 31, and the second end of the connecting member 32 can pass through the device housing 40 and be connected to the diaphragm 33 in the device housing 40.

[0025] In an embodiment of the present invention, the sound outlet hole 43 and the first magnetic component 10 may be located on two adjacent sides of the diaphragm 33, or on two non-adjacent sides of the diaphragm 33. Since the sound mass of the position of the diaphragm 33 adjacent to the sound outlet hole 43 is different from that of the position on the opposite side of the diaphragm 33 opposite to the sound outlet hole 43, the diaphragm 33 is prone to polarization during operation, which will eventually affect the sound effect. Based on this, in one embodiment, the diaphragm 33 may be located between the sound outlet hole 43 and the first magnetic component 10. That is, the sound outlet hole 43 and the first magnetic component 10 are respectively located on two opposite sides of the diaphragm 33. In this case, since the sound outlet hole 43 and the first magnetic component 10 are distributed on opposite sides of the diaphragm 33, the polarization caused by the uneven distribution of sound mass can be weakened, which is beneficial to improving the sound effect of the sound-emitting device 01.

[0026] As described above, the diaphragm 33 is connected to the device housing 40, and the device housing 40 is provided with a sound outlet hole 43. Based on this, in a specific embodiment, a portion of the edge of the diaphragm 33 can be connected to the sound outlet hole 43. Specifically, a portion of the edge of the diaphragm 33 can be connected to the sound outlet hole 43 by bonding, overlapping, connecting with a connector, etc., which is not limited by the embodiment of the present invention. In this case, the sound outlet hole 43 can provide a mounting position for a portion of the edge of the diaphragm 33, thereby facilitating the connection between the diaphragm 33 and the device housing 40. Since the diaphragm 33 divides the diaphragm accommodating space 42 into a front cavity 421 and a rear cavity 422 that are isolated from each other, in order to ensure the isolation effect, the portion of the edge of the diaphragm 33 connected to the sound outlet hole 43 can be bonded and sealed with the sound outlet hole 43, thereby achieving connection while ensuring the sealing of the connection. The diaphragm 33 can also be sealed with the device housing 40 by bonding or by a sealing ring to ensure the sealing isolation effect of the front cavity 421 and the rear cavity 422, which is not limited by the embodiment of the present invention. The other parts of the edge of the diaphragm 33 can be sealed and connected to the inner wall opposite to the device housing 40 by bonding, connecting with a connector, etc.

[0027] The embodiment of the present invention does not limit the specific structure of the diaphragm 33, as long as it can move relative to the device housing 40 under the drive of the voice coil 31 to generate vibration. In one embodiment, the diaphragm 33 may include a diaphragm body 331 and an elastic connector 332. The elastic connector 332 may be made of an elastic material, or may be designed as an elastic structure, such as an easily deformable arched structure.

[0028] The diaphragm body 331 is the main part of the diaphragm 33, and the elastic connector 332 is used to connect the diaphragm body 331 with the device housing 40. The elastic connector 332 can surround at least part of the edge of the diaphragm body 331. The inner edge of the elastic connector 332 is connected to the diaphragm body 331, and the outer edge of the elastic connector 332 is connected to the device housing 40. For example, the outer edge of the elastic connector 332 and the device housing 40 can be sealed and connected by bonding, connecting members, etc. The inner edge of the elastic connector 332 is connected to the edge of the diaphragm body 331, for example, the inner edge of the elastic connector 332 and the edge of the diaphragm body 331 are sealed and connected by bonding, connecting members, etc. In order to improve the stability of the connection and achieve the balance of the vibration of the diaphragm body 331, the elastic connector 332 can be arranged around the diaphragm body 331, that is, the elastic connector 332 can surround the entire edge of the diaphragm body 331.

[0029] As described above, the second end of the connecting member 32 is connected to the diaphragm 33, thereby driving the diaphragm 33 to vibrate. In order to improve the driving effect on the diaphragm 33 and make most areas of the diaphragm 33 vibrate as evenly as possible, in a further embodiment, the connecting member 32 may include a connecting rod 321 and a diaphragm connecting portion 322.

[0030] The first end of the connecting rod 321 can be connected to the voice coil 31, and the first end of the connecting rod 321 substantially constitutes the first end of the connecting member 32. The second end of the connecting rod 321 is connected to the diaphragm connecting portion 322 through the first magnetic assembly 10, and the diaphragm connecting portion 322 can surround at least part of the edge of the diaphragm body 331, and the diaphragm connecting portion 322 is connected to the elastic connecting member 332. In this case, the diaphragm connecting portion 322 substantially constitutes the second end of the connecting member 32. In this structure, the diaphragm connecting portion 322 is arranged to surround at least part of the edge of the diaphragm body 331, so that the connecting member 32 can control a larger area on the diaphragm 33 to vibrate synchronously better, thereby improving the balance of the vibration of the diaphragm 33. In order to improve the balance of the vibration of the diaphragm body 331, the diaphragm connecting portion 322 can be arranged around the diaphragm body 331, that is, the diaphragm connecting portion 322 can surround the entire edge of the diaphragm body 331.

[0031] In the embodiment of the present invention, the number of the connecting rod 321 may be one or more, and the embodiment of the present invention does not limit the specific number of the connecting rod 321. In order to improve the connection effect and the power transmission effect, in one embodiment, there are multiple connecting rods 321, and the first ends of the multiple connecting rods 321 can be respectively connected to the voice coil 31, and the second ends of the multiple connecting rods 321 are respectively connected to the diaphragm connecting part 322.

[0032] The embodiment of the present invention does not limit the number of first magnetic components 10. In one embodiment, there may be one first magnetic component 10. In another embodiment, there may be multiple first magnetic components 10, and the multiple first magnetic components 10 may be distributed around the second magnetic component 20, and the multiple first magnetic components 10 and the second magnetic component 20 form a magnetic gap 41, and one of the multiple first magnetic components 10 is located between the diaphragm 33 and the relative magnetic gap 41. The voice coil 31 may be sleeved outside the second magnetic component 20 and simultaneously located in multiple magnetic gaps 41. In this structure, the multiple first magnetic components 10 cooperate with the second magnetic component 20 respectively to form a stronger magnetic field, thereby being able to implement a strong motion drive on the voice coil 31, and at the same time, when individual first magnetic components 10 are damaged, they can be flexibly replaced without causing the sound-generating device 01 to completely fail to work.

[0033] In the embodiment of the present invention, the structures of the first magnetic assembly 10 and the second magnetic assembly 20 may be various, and the embodiment of the present invention does not limit the specific structures of the first magnetic assembly 10 and the second magnetic assembly 20. In one embodiment, the first magnetic assembly 10 may include a first magnet 11 and a second magnet 12 stacked on the first magnet 11, specifically, the second magnet 12 is stacked with the first magnet 11 in the moving direction of the voice coil 31.

[0034] The second magnetic assembly 20 may include a third magnet 21 and a fourth magnet 22 stacked on the third magnet 21 . Specifically, the fourth magnet 22 and the third magnet 21 are stacked in the moving direction of the voice coil 31 .

[0035] The relative poles of the first magnet 11 and the second magnet 12 are respectively the first magnetic pole and the second magnetic pole, and the polarity of the first magnetic pole and the second magnetic pole can be the same; the relative poles of the third magnet 21 and the fourth magnet 22 are respectively the third magnetic pole and the fourth magnetic pole, and the polarity of the third magnetic pole and the fourth magnetic pole can be the same, the first magnetic pole cooperates with the third magnetic pole, the second magnetic pole cooperates with the fourth magnetic pole, the polarity of the first magnetic pole and the third magnetic pole is opposite, and the polarity of the second magnetic pole and the fourth magnetic pole is opposite.

[0036] This structure can form a counter-magnetic structure, so that the magnetic field of the magnetic circuit system formed by the first magnetic component 10 and the second magnetic component 20 is stronger, thereby improving the driving ability of the voice coil 31.

[0037] In a further embodiment, the first magnetic assembly 10 may further include a first magnetic conductive member 13, and the first magnetic conductive member 13 may be disposed between the first magnetic pole and the second magnetic pole. The first magnetic conductive member 13 plays a magnetic conductive role, so that the magnetic fields of the first magnet 11 and the second magnet 12 are better gathered at the first magnetic pole and the second magnetic pole, so that the magnetic fields between them and the third magnetic pole and the fourth magnetic pole are stronger, thereby better driving the voice coil 31 to move. In one embodiment, the first magnetic pole may be an S pole, such as Figure 3 As shown, it may also be a N pole, and the embodiment of the present invention does not limit the specific type of the first magnetic pole.

[0038] Similarly, the second magnetic assembly 20 may further include a second magnetic conductive member 23, which is disposed between the third magnetic pole and the fourth magnetic pole. The second magnetic conductive member 23 plays a magnetic conductive role, so that the magnetic fields of the third magnet 21 and the fourth magnet 22 are better gathered at the third magnetic pole and the fourth magnetic pole, so that the magnetic fields between them and the first magnetic pole and the second magnetic pole are respectively stronger, thereby better driving the voice coil 31 to move.

[0039] In the embodiment of the present invention, the sound-generating device 01 may further include a third magnetic conductive member 50, the first magnet 11 has a fifth magnetic pole opposite to the first magnetic pole, the third magnet 21 has a sixth magnetic pole opposite to the third magnetic pole, the fifth magnetic pole and the sixth magnetic pole have opposite polarities, the fifth magnetic pole and the sixth magnetic pole cooperate, and the third magnetic conductive member 50 contacts and covers the fifth magnetic pole and the sixth magnetic pole respectively. The third magnetic conductive member 50 also plays a magnetic conductive role, so that the magnetic field of the first magnet 11 is better collected at the fifth magnetic pole, and the magnetic field of the third magnet 21 is better collected at the sixth magnetic pole, so that the magnetic field between the fifth magnetic pole and the sixth magnetic pole is more collected in the magnetic gap 41, which can also improve the driving effect on the voice coil 31.

[0040] Similarly, the sound-generating device 01 may also include a fourth magnetic conductive member 60, the second magnet 12 has a seventh magnetic pole opposite to the second magnetic pole, the fourth magnet 22 has an eighth magnetic pole opposite to the fourth magnetic pole, the seventh magnetic pole and the eighth magnetic pole have opposite polarities, the seventh magnetic pole and the eighth magnetic pole cooperate, and the fourth magnetic conductive member 60 contacts and covers the seventh magnetic pole and the eighth magnetic pole respectively. The fourth magnetic conductive member 60 plays a magnetic conductive role, so that the magnetic field of the second magnet 12 is better gathered at the seventh magnetic pole, and the magnetic field of the fourth magnet 22 is better gathered at the eighth magnetic pole, so that the magnetic field between the seventh magnetic pole and the eighth magnetic pole is more gathered in the magnetic gap 41, which can also improve the driving effect on the voice coil 31.

[0041] Based on the sound-emitting device 01 disclosed in the embodiment of the present invention, the embodiment of the present invention discloses an electronic device, which may include a device housing 02 and the sound-emitting device 01 described in the above embodiment, and the sound-emitting device 01 may be disposed inside the device housing 02. Specifically, the device housing 40 may be fixed in the inner cavity of the device housing 02, and the sound outlet hole 43 on the device housing 40 may cooperate with the corresponding hole on the device housing 02, thereby realizing the transmission of sound outside the electronic device.

[0042] The electronic device disclosed in the embodiments of the present application may be a smart phone, a tablet computer, an e-book reader, a wearable device (such as a smart watch), an electronic game console, VR (Virtual Reality) glasses, and the like. The embodiments of the present application do not limit the specific types of electronic devices.

[0043] The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different features of the various embodiments are not contradictory, they can be combined to form more specific embodiments. Considering the simplicity of the text, they will not be repeated here.

[0044] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A sound-generating device, characterized in that: The invention comprises a first magnetic component (10), a second magnetic component (20) and a vibration component (30); the vibration component (30) comprises a voice coil (31), a connecting member (32) and a diaphragm (33); a magnetic gap (41) is formed between the first magnetic component (10) and the second magnetic component (20); at least a part of the voice coil (31) is arranged in the magnetic gap (41), the first magnetic component (10) is located between the diaphragm (33) and the magnetic gap (41), a first end of the connecting member (32) is connected to the voice coil (31); a second end of the connecting member (32) is connected to the diaphragm (33), and the connecting member (32) is used to drive the diaphragm (33) to vibrate based on the voice coil (31).

2. The sound generating device according to claim 1, characterized in that: The sound-generating device further comprises a device housing (40); the first magnetic component (10), the second magnetic component (20) and the vibration component (30) are arranged in the device housing (40); a diaphragm accommodating space (42) is provided in the device housing (40); the first magnetic component (10) is located between the diaphragm accommodating space (42) and the magnetic gap (41); the diaphragm (33) is arranged in the diaphragm accommodating space (42); an edge of the diaphragm (33) is connected to the device housing (40); the diaphragm (33) divides the diaphragm accommodating space (42) into a front cavity (421) and a rear cavity (422) which are isolated from each other; and a sound outlet hole (43) is provided in the device housing (40); the sound outlet hole (43) is connected to the front cavity (421).

3. The sound-generating device according to claim 2, characterized in that: The diaphragm (33) is located between the sound outlet hole (43) and the first magnetic component (10).

4. The sound generating device according to claim 2, characterized in that: A portion of the edge of the diaphragm (33) is connected to the sound outlet hole (43).

5. The sound generating device according to claim 2, characterized in that: The diaphragm (33) comprises a diaphragm body (331) and an elastic connecting member (332), wherein the elastic connecting member (332) surrounds at least a portion of the edge of the diaphragm body (331), the inner edge of the elastic connecting member (332) is connected to the diaphragm body (331), and the outer edge of the elastic connecting member (332) is connected to the device housing (40), and the connecting member (32) comprises a connecting rod (321) and a diaphragm connecting portion (322), wherein the first end of the connecting rod (321) is connected to the voice coil (31), and the second end of the connecting rod (321) is connected to the diaphragm connecting portion (322) via the first magnetic assembly (10), and the diaphragm connecting portion (322) surrounds at least a portion of the edge of the diaphragm body (331), and the diaphragm connecting portion (322) is connected to the elastic connecting member (332).

6. The sound generating device according to claim 5, characterized in that: There are a plurality of connecting rods (321), the first ends of the plurality of connecting rods (321) are respectively connected to the voice coil (31), and the second ends of the plurality of connecting rods (321) are respectively connected to the diaphragm connecting portion (322).

7. The sound generating device according to claim 1, characterized in that: The first magnetic component (10) is one, or the first magnetic component (10) is multiple, the multiple first magnetic components (10) are distributed around the second magnetic component (20), the multiple first magnetic components (10) and the second magnetic component (20) all enclose the magnetic gap (41), and one of the multiple first magnetic components (10) is located between the diaphragm (33) and the opposite magnetic gap (41).

8. The sound generating device according to claim 1, characterized in that: The first magnetic assembly (10) comprises a first magnet (11) and a second magnet (12) stacked on the first magnet (11); the second magnetic assembly (20) comprises a third magnet (21) and a fourth magnet (22) stacked on the third magnet (21); the magnetic poles of the first magnet (11) and the second magnet (12) facing each other are respectively a first magnetic pole and a second magnetic pole, and the polarity of the first magnetic pole is the same as that of the second magnetic pole; the magnetic poles of the third magnet (21) and the fourth magnet (22) facing each other are respectively a third magnetic pole and a fourth magnetic pole, and the polarity of the third magnetic pole is the same as that of the fourth magnetic pole; the first magnetic pole cooperates with the third magnetic pole, and the second magnetic pole cooperates with the fourth magnetic pole; the polarity of the first magnetic pole is opposite to that of the third magnetic pole, and the polarity of the second magnetic pole is opposite to that of the fourth magnetic pole.

9. The sound generating device according to claim 8, characterized in that: The first magnetic component (10) further comprises a first magnetic conductive member (13), the first magnetic conductive member (13) being arranged between the first magnetic pole and the second magnetic pole; the second magnetic component (20) further comprises a second magnetic conductive member (23), the second magnetic conductive member (23) being arranged between the third magnetic pole and the fourth magnetic pole.

10. The sound generating device according to claim 8, characterized in that: The sound-generating device further comprises a third magnetic conductive member (50), the first magnet (11) having a fifth magnetic pole disposed opposite to the first magnetic pole, the third magnet (21) having a sixth magnetic pole disposed opposite to the third magnetic pole, the fifth magnetic pole and the sixth magnetic pole having opposite polarities, the fifth magnetic pole and the sixth magnetic pole cooperating with each other, the third magnetic conductive member (50) respectively contacting with and covering the fifth magnetic pole and the sixth magnetic pole; and / or, The sound-generating device further comprises a fourth magnetic conductive member (60), the second magnet (12) having a seventh magnetic pole disposed opposite to the second magnetic pole, the fourth magnet (22) having an eighth magnetic pole disposed opposite to the fourth magnetic pole, the seventh magnetic pole having opposite polarity to the eighth magnetic pole, the seventh magnetic pole cooperating with the eighth magnetic pole, the fourth magnetic conductive member (60) respectively contacting with the seventh magnetic pole and the eighth magnetic pole and respectively covering the seventh magnetic pole and the eighth magnetic pole.

11. An electronic device, characterized in that: It comprises a device housing (02) and a sound-generating device (01) according to any one of claims 1 to 10, wherein the sound-generating device (01) is arranged inside the device housing (02).

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