CN220292186U

CN220292186U - Sound producing device and electronic equipment

Info

Publication number: CN220292186U
Application number: CN202322320002.6U
Authority: CN
Inventors: 蔡晓东; 刘松; 李波波
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2022-08-26
Filing date: 2023-08-28
Publication date: 2024-01-02
Anticipated expiration: 2033-08-28
Also published as: CN117641210A; CN117641208A; CN117641209A; CN117641211A; CN115396761A; CN117641206A; CN117641207A

Abstract

The utility model discloses a sound generating device and electronic equipment, wherein the sound generating device comprises a shell, a magnetic circuit system and a vibration system, the shell comprises a first shell and a second shell which are arranged at an included angle, the first shell and the second shell are enclosed to form an installation cavity, the magnetic circuit system is arranged in the installation cavity, the vibration system comprises a first vibration component and a second vibration component, the first vibration component is connected with the first shell and is opposite to the magnetic circuit system, the second vibration component is connected with the second shell and is opposite to the magnetic circuit system, and the vibration direction of the first vibration component and the vibration direction of the second vibration component are arranged at an included angle. The utility model aims to provide the sound generating device with the mutually independent vibration radiation surfaces and arranged at the included angle, which not only realizes multifunctional application, but also effectively improves the sound generating effect and reduces the manufacturing cost.

Description

Sound producing device and electronic equipment

Technical Field

The present utility model relates to electroacoustic conversion technology, and in particular, to a sound generating device and an electronic device using the sound generating device.

Background

With the development of portable consumer electronics market, the micro-sound generator is widely applied, and with the multifunctional and miniaturized design of portable terminal electronics, the requirements on the vibroacoustic performance of the micro-sound generator are raised.

The effective frequency band of the miniature loudspeaker module in the intelligent mobile terminal is narrower at present, tone quality is monotonous, tone quality is poor, and various functional requirements cannot be met. In the related art, a plurality of conventional sounding devices are arranged in the intelligent terminal, so that the design difficulty of the intelligent terminal is improved, and the manufacturing cost of the intelligent terminal is increased.

Disclosure of Invention

The utility model mainly aims to provide a sound generating device and electronic equipment, and aims to provide the sound generating device with mutually independent vibration radiation surfaces and arranged at an included angle.

To achieve the above object, the present utility model provides a sound emitting device including:

the shell comprises a first shell and a second shell which are arranged at an included angle, and the first shell and the second shell enclose a mounting cavity;

The magnetic circuit system is arranged in the mounting cavity and is provided with a first magnetic gap and a second magnetic gap; a kind of electronic device with high-pressure air-conditioning system

The vibration system comprises a first vibration assembly and a second vibration assembly, wherein the first vibration assembly is connected with the first shell and is opposite to the magnetic circuit system, the second vibration assembly is connected with the second shell and is opposite to the magnetic circuit system, the vibration direction of the first vibration assembly is set with the vibration direction of the second vibration assembly to form an included angle, the second vibration assembly comprises a second voice coil, the second voice coil is a flat voice coil, and the second voice coil is arranged in the second magnetic gap.

In one embodiment, the magnetic circuit system includes:

a basin stand;

a first magnetic circuit portion opposed to and spaced apart from the first vibration assembly, the first magnetic circuit portion including a central magnetic circuit portion provided at a side of the tub facing the housing and a side magnetic circuit portion provided outside the central magnetic circuit portion and spaced apart from the central magnetic circuit portion to form a first magnetic gap; a kind of electronic device with high-pressure air-conditioning system

The second magnetic circuit part is arranged on the basin frame, is opposite to and spaced from the second vibration assembly, is positioned on one side of part of the first magnetic circuit part, which is opposite to the first vibration assembly, and is matched with the first magnetic circuit part to form a second magnetic gap.

In one embodiment, the central magnetic circuit part comprises a central magnetic circuit and a first common magnetic circuit which are connected, the side magnetic circuit part comprises a side magnetic circuit and a second common magnetic circuit, the side magnetic circuit is positioned outside the central magnetic circuit and forms a first sub-gap at intervals, the second common magnetic circuit is positioned on one side of the first common magnetic circuit, which is opposite to the central magnetic circuit, and forms a second sub-gap at intervals, and the first sub-gap is communicated with the second sub-gap to form the first magnetic gap;

the second magnetic circuit portion includes a first magnet opposite and spaced from the first common magnetic circuit to form a third sub-gap, and a second magnet opposite and spaced from the second common magnetic circuit to form a fourth sub-gap, the third sub-gap and the fourth sub-gap being in communication and forming the second magnetic gap.

In one embodiment, the second voice coil has two major axis sides and two minor axis sides connected end to end, the two major axis sides being located within the third and fourth sub-gaps, respectively.

In an embodiment, the thickness of the first common magnetic circuit is greater than or equal to the thickness of the central magnetic circuit;

And/or the thickness of the second common magnetic circuit is greater than or equal to the thickness of the side magnetic circuit;

and/or the thickness of the first magnet is greater than or equal to the thickness of the central magnetic circuit;

and/or the thickness of the second magnet is greater than or equal to the thickness of the side magnetic circuit;

and/or the first common magnetic circuit and the central magnetic circuit are of an integrated structure or a split structure;

and/or the first magnet and the second magnet are of an integrated structure or are arranged at intervals;

and/or, the central magnetic circuit part and the side magnetic circuit part are magnetized along the vibration direction of the first vibration component and are opposite in magnetization direction, the first magnet and the second magnet are magnetized along the vibration direction of the first vibration component and are opposite in magnetization direction, and the magnetization directions of the first magnet and the central magnetic circuit part are the same.

In an embodiment, the central magnetic circuit portion includes a central magnetic circuit, the side magnetic circuit portion includes a side magnetic circuit and a second common magnetic circuit, the side magnetic circuit is located outside the central magnetic circuit and forms a first sub-gap at intervals, the second common magnetic circuit is located outside the central magnetic circuit and forms a second sub-gap at intervals, and the first sub-gap communicates with the second sub-gap to form the first magnetic gap;

The second magnetic circuit portion includes a third magnet having a first magnetization region and a second magnetization region, the second common magnetic circuit includes a third magnetization region and a fourth magnetization region, the first magnetization region and the third magnetization region are opposite and spaced apart to form a fifth sub-gap, the second magnetization region and the fourth magnetization region are opposite and spaced apart to form a sixth sub-gap, the fifth sub-gap and the sixth sub-gap are in communication, and form the second magnetic gap.

In an embodiment, the central magnetic circuit portion, the side magnetic circuit portion and the second magnetic circuit portion are magnetized along the vibration direction of the first vibration component, the magnetization directions of the first magnetization region and the third magnetization region are the same, the magnetization directions of the second magnetization region and the fourth magnetization region are the same, the magnetization directions of the first magnetization region and the second magnetization region are opposite, and the magnetization directions of the first magnetization region and the central magnetic circuit portion are opposite;

and/or the third magnet comprises two parts which are spaced apart, and the first magnetizing area and the second magnetizing area are spaced apart;

and/or the second common magnetic circuit comprises two parts which are spaced apart, and the third magnetizing area and the fourth magnetizing area are spaced apart;

And/or, the second voice coil is provided with two long axis sides and two short axis sides which are connected end to end, and the two long axis sides are respectively positioned in the fifth sub-gap and the sixth sub-gap.

In an embodiment, the basin stand comprises a first section, a second section and a third section which are sequentially connected, wherein the first section and the third section are respectively arranged at an included angle with the second section and are positioned on two opposite sides of the second section; part of the first magnetic circuit part is arranged on the first section, and the second magnetic circuit part is arranged on the third section.

In an embodiment, the basin frame is provided with a venting hole, the venting hole is communicated with the first magnetic gap and/or the second magnetic gap, and the sound generating device further comprises an isolation net arranged corresponding to the venting hole;

and/or the first section and the third section are parallel to the first housing

In one embodiment, the first vibration assembly includes:

the first vibrating diaphragm is connected to the first shell; and

one end of the first voice coil is connected with the first vibrating diaphragm, the other end of the first voice coil is suspended in the first magnetic gap, and the first voice coil is an annular voice coil;

The second vibration assembly includes:

and the vibrating diaphragm assembly is connected with the second shell.

In an embodiment, the diaphragm assembly includes a second diaphragm and a second dome, where the second dome is disposed at a center of the second diaphragm, and has a connection portion extending toward the second voice coil, and the connection portion is connected to the second voice coil;

and/or the vibrating diaphragm assembly protrudes towards one side far away from the magnetic circuit system or towards one side close to the magnetic circuit system.

In an embodiment, the first vibration assembly is for bass sounds and the second vibration assembly is for treble sounds;

and/or the vibration direction of the first vibration component is perpendicular to the vibration direction of the second vibration component.

The utility model also provides electronic equipment, which comprises an equipment shell and the sounding device, wherein the sounding device is arranged on the equipment shell.

According to the sound production device, the shell is arranged to be the first shell and the second shell which are arranged at the included angle, the first shell and the second shell are integrally formed and are enclosed to form the installation cavity, so that the installation cavity is utilized to install and fix the magnetic circuit system, meanwhile, the structural strength of the shell is improved, the first vibration assembly and the first shell are connected and are opposite to the magnetic circuit system, the second vibration assembly and the second shell are connected and are opposite to the magnetic circuit system, the magnetic circuit system is utilized to provide a magnetic field and a driving force for the first vibration assembly and the second vibration assembly at the same time, the magnetic field utilization rate is improved, meanwhile, the cost and the size are reduced, and the vibration direction of the first vibration assembly and the vibration direction of the second vibration assembly are further arranged to be arranged at the included angle, so that the vibration system forms two mutually independent vibration radiation surfaces which are arranged at the included angle, the multifunctional application is realized, and the sound production effect is effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a sound generating apparatus according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram illustrating a sound generating apparatus according to another embodiment of the present utility model;

FIG. 3 is an exploded view of a sound generating apparatus according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a sound generating apparatus according to an embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of a portion of a sound generating apparatus according to an embodiment of the present utility model;

FIG. 6 is an exploded view of a first vibration assembly according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram illustrating a structure of a first diaphragm according to an embodiment of the utility model;

FIG. 8 is an exploded view of a second vibration assembly according to an embodiment of the present utility model;

FIG. 9 is an exploded view of the housing according to an embodiment of the present utility model;

FIG. 10 is a schematic plan view of a housing according to an embodiment of the utility model;

FIG. 11 is a schematic cross-sectional view of a sound generating apparatus according to an embodiment of the present utility model;

fig. 12 is a schematic cross-sectional view of a sound generating device according to an embodiment of the utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Meanwhile, the meaning of "and/or" and/or "appearing throughout the text is to include three schemes, taking" a and/or B "as an example, including a scheme, or B scheme, or a scheme that a and B satisfy simultaneously.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The consumer requests the intelligent terminal to have the function of privacy protection when talking, the audio content has enough loudness when playing, and the consumer pursues higher tone quality performance when enjoying music. However, the conventional sounder can only sound on one side, and cannot meet various functional requirements. In the related art, a plurality of conventional sounding devices are arranged in the intelligent terminal, so that the design difficulty of the intelligent terminal is improved, and the manufacturing cost of the intelligent terminal is increased.

Based on the above concepts and problems, the present utility model proposes a sound generating apparatus 100. It is understood that the sound generating apparatus 100 is applied to an electronic device, which may be a mobile phone, a sound device, a computer, a headset, a watch, or a television, and the like, and is not limited herein.

Referring to fig. 1 to 12 in combination, in the embodiment of the utility model, the sound generating device 100 includes a housing 1, a magnetic circuit 2 and a vibration system 3, wherein the housing 1 includes a first housing 12 and a second housing 13 disposed at an included angle, the first housing 12 and the second housing 13 enclose a mounting cavity 11, the magnetic circuit 2 is disposed in the mounting cavity 11, the vibration system 3 includes a first vibration component 31 and a second vibration component 32, the first vibration component 31 is connected with the first housing 12 and is opposite to the magnetic circuit 2, the second vibration component 32 is connected with the second housing 13 and is opposite to the magnetic circuit 2, and a vibration direction of the first vibration component 31 and a vibration direction of the second vibration component 32 are disposed at an included angle.

In the present embodiment, the housing 1 is used for mounting, fixing, supporting and protecting the components of the vibration system 3, the magnetic circuit system 2, and the like, that is, the housing 1 provides a mounting base for the components of the vibration system 3, the magnetic circuit system 2, and the like. It will be appreciated that the housing 1 may be a mounting shell, a casing or a box having the mounting cavity 11, that is, the housing 1 defines a receiving space, which is not limited herein.

As shown in fig. 3 and 9, the housing 1 includes a first casing 12 and a second casing 13 disposed at an angle. Alternatively, the first housing 12 and the second housing 13 are integrally formed, thus improving the structural strength and stability of the housing 1. It will be appreciated that the first housing 12 and the second housing 13 enclose a mounting cavity 11, and that the mounting cavity 11 may be a through cavity or a through slot structure. Alternatively, the first housing 12 and the second housing 13 are disposed vertically.

In this embodiment, as shown in fig. 3 and 9, the first housing 12 has a rectangular structure, the first housing 12 has two opposite long sides and two short sides, two ends of the short sides are respectively connected to the two long sides, and two ends of the long sides are respectively connected to the two short sides. It will be appreciated that the second housing 13 is connected to the long side or the short side of the first housing 12 such that the second housing 13 is disposed perpendicular to the first housing 12.

It will be appreciated that the second housing 13 may alternatively be a rectangular structure, where the second housing 13 has two opposite long sides and two short sides, two ends of the short sides are connected to the two long sides, and two ends of the long sides are connected to the two short sides. In the present embodiment, the first housing 12 and the second housing 13 share one long side or short side. The first housing 12 defines a first opening 121 on both long sides and both short sides, and the second housing 13 defines a second opening 131 on both long sides, the first opening 121 and the second opening 131 being in communication with the mounting chamber 11, respectively. Alternatively, the first opening 121 and the second opening 131 are located at adjacent two surfaces of the housing 1.

When the housing 1 is a metal member, the magnetic circuit 2 and the housing 1 are fixed by adhesion or welding. In another embodiment, when the housing 1 is formed by injection molding, the side magnetic conduction plate of the magnetic circuit system 2 is first injection molded in the housing 1 as an insert, or the magnetic circuit system 2 and the housing 1 are fixed by adhesion, and then the other parts are fixed by adhesion, which is not limited herein.

In the present embodiment, the magnetic circuit system 2 is disposed in the mounting cavity 11 of the housing 1 and is connected to the first casing 12 and the second casing 13 of the housing 1. The vibration system 3 is connected to the first casing 12 and the second casing 13 of the housing 1, and is opposed to the magnetic circuit system 2. It can be understood that the first vibration component 31 of the vibration system 3 is connected with the first casing 12 and covers the first opening 121, the second vibration component 32 is connected with the second casing 13 and covers the second opening 131, so that the first casing 12 and the second casing 13 of the casing 1, the first vibration component 31 and the second vibration component 32, and the magnetic circuit system 2 jointly enclose a vibration space.

It can be appreciated that the first vibration assembly 31 is opposite to the magnetic circuit system 2, and the second vibration assembly 32 is opposite to the magnetic circuit system 2, so that the first vibration assembly 31 and the second vibration assembly 32 share the magnetic circuit system 2, thereby improving the magnetic field utilization rate and reducing the cost of the sound generating device 100. In the present embodiment, the vibration direction of the first vibration component 31 is disposed at an angle to the vibration direction of the second vibration component 32. Alternatively, the vibration direction of the first vibration member 31 is perpendicular to the vibration direction of the second vibration member 32.

In the present embodiment, the magnetic circuit system 2 provides the magnetic field and the driving force for the first vibration assembly 31 and the second vibration assembly 32 to drive the first vibration assembly 31 and the second vibration assembly 32 to vibrate and sound, respectively, so as to improve the sound emitting effect.

According to the sound production device 100, the shell 1 is arranged to form the first shell 12 and the second shell 13 which are arranged at the included angle, and the installation cavity 11 is formed by surrounding, so that the magnetic circuit system 2 is installed and fixed by the installation cavity 11, meanwhile, the vibration system 3 is provided with the first vibration component 31 and the second vibration component 32, so that the first vibration component 31 is connected with the first shell 12 and is opposite to the magnetic circuit system 2, the second vibration component 32 is connected with the second shell 13 and is opposite to the magnetic circuit system 2, the magnetic circuit system 2 is utilized to simultaneously provide a magnetic field and a driving force for the first vibration component 31 and the second vibration component 32, the magnetic field utilization rate is improved, the cost is reduced, and the vibration direction of the first vibration component 31 and the vibration direction of the second vibration component 32 are further arranged at the included angle, so that the vibration system 3 forms two mutually independent vibration radiation surfaces which are arranged at the included angle, the multifunctional application is realized, and the sound production effect is effectively improved.

In an embodiment, the magnetic circuit system 2 includes a basin frame 21, a first magnetic circuit portion 22 and a second magnetic circuit portion 23, wherein the first magnetic circuit portion 22 is disposed on the basin frame 21 and opposite to and spaced from the first vibration assembly 31, the first magnetic circuit portion 22 is provided with a first magnetic gap 221, the second magnetic circuit portion 23 is disposed on the basin frame 21 opposite to and spaced from the second vibration assembly 32, and the second magnetic circuit portion 23 is disposed on a side of a portion of the first magnetic circuit portion 22 facing away from the first vibration assembly 31 and cooperates with the first magnetic circuit portion 22 to form a second magnetic gap 231.

In the present embodiment, as shown in fig. 3 to 5, the basin frame 21 of the magnetic circuit 2 provides a mounting and fixing base for the first magnetic circuit portion 22 and the second magnetic circuit portion 23, the first magnetic circuit portion 22 and the second magnetic circuit portion 23 are provided on the side of the basin frame 21 facing the housing 1, and the magnetic circuit 2 is connected to the first casing 12 and the second casing 13 of the housing 1 through the first magnetic circuit portion 22 and the second magnetic circuit portion 23.

It will be appreciated that the first magnetic circuit portion 22 and the second magnetic circuit portion 23 may be adhesively attached to the frame 21. The basin stand 21 may be a magnetic conductive plate or a magnetic conductive basin stand, and is not limited herein. The first magnetic circuit portion 22 and the second magnetic circuit portion 23 may be connected to the first casing 12 and the second casing 13 of the housing 1 by bonding, welding, or the like, which is not limited herein.

In the present embodiment, by providing the first magnetic gap 221 in the first magnetic circuit portion 22, the first vibration assembly 31 is provided with a space for avoiding and vibrating by using the first magnetic gap 221. Through setting up second magnetic circuit part 23 in the side of part first magnetic circuit part 22 back to first vibration subassembly 31 to with second vibration subassembly 32 relatively and the interval, make second magnetic circuit part 23 and the cooperation of part first magnetic circuit part 22 form second magnetic gap 231, thereby when utilizing second magnetic gap 231 to provide dodge and vibration space for second vibration subassembly 32, make first vibration subassembly 31 and second vibration subassembly 32 share part first magnetic circuit part 22, in order to improve the magnetic field utilization ratio of magnetic circuit system 2, effectively reduce the cost.

In order to facilitate the installation and fixing of the first magnetic circuit portion 22 and the second magnetic circuit portion 23, and to make the first magnetic circuit portion 22 and the second magnetic circuit portion 23 opposite to the first vibration assembly 31 and the second vibration assembly 32, respectively, in an embodiment, the basin stand 21 includes a first section 211, a second section 212 and a third section 213 connected in sequence, where the first section 211 and the third section 213 are disposed at an angle with respect to the second section 212 and are located on opposite sides of the second section 212; part of the first magnetic circuit portion 22 is provided in the first section 211 and the second magnetic circuit portion 23 is provided in the third section 213.

Optionally, the first section 211 and the third section 213 are parallel to the first housing 12, and the second section 212 is parallel to the second housing 13, so that the sound generating device 100 has a more regular appearance and is convenient to be assembled in the external environment. The second magnetic circuit portion 23 may further be connected to the second segment 212, increasing the connection reliability of the second partial magnetic circuit 23.

In the present embodiment, as shown in fig. 2 to 5, the first section 211, the second section 212 and the third section 213 of the basin stand 21 are integrally formed. Optionally, the first section 211, the second section 212 and the third section 213 form a right-angle Z-shaped structure, so that the first section 211 and the third section 213 of the basin stand 21 are parallel to the first housing 12, the second section 212 is parallel to the second housing 13, and thus, a height difference is formed between the first section 211 and the third section 213 by using the second section 212, so that the first magnetic circuit portion 22 is conveniently mounted and fixed by using the first section 211 of the basin stand 21, the second magnetic circuit portion 23 is mounted and fixed by using the second section 212 and the third section 213 of the basin stand 21, and the second magnetic circuit portion 23 is located below a portion of the first magnetic circuit portion 22 corresponding to the third section 213, so that the second vibration assembly 32 shares the first magnetic circuit portion 22 while improving the structural compactness.

In one embodiment, the first magnetic circuit portion 22 includes a central magnetic circuit portion 222 and a side magnetic circuit portion 223, the side magnetic circuit portion 223 being disposed outside the central magnetic circuit portion 222 and spaced from the central magnetic circuit portion 222 to form the first magnetic gap 221.

In one embodiment, as shown in fig. 3 to 5, a part of the central magnetic circuit portion 222 and a part of the side magnetic circuit portion 223 of the first magnetic circuit portion 22 are mounted and fixed to the first section 211 of the basin stand 21, and the first magnetic circuit portion 22 is connected and fixed to the first casing 12 of the housing 1 through the side magnetic circuit portion 223. Alternatively, the basin stand 21 is adhesively connected to the central magnetic circuit portion 222 and the side magnetic circuit portion 223, and the side magnetic circuit portion 223 is adhesively connected to the first case 12 of the housing 1.

It will be appreciated that the central magnetic circuit portion 222 includes a central magnet and a central washer arranged in a stack, the central magnet being arranged between the central washer and the basin 21, and the side magnetic circuit portion 223 includes side magnets and Bian Huasi arranged in a stack, the side magnets being arranged between Bian Huasi and the basin 21. It will be appreciated that Bian Huasi of the side magnetic circuit portion 223 can be adhesively attached to the housing 1. Alternatively, bian Huasi is an integral structure with the housing 1.

In this embodiment, the central washer and Bian Huasi may be selected as a magnetically permeable plate structure. The central magnet and the central washer have the same structural outline, and the central magnet and the central washer can be plate-shaped structures or annular structures, and are not limited herein. The side magnets and Bian Huasi have the same structural outline, and the side magnets and Bian Huasi may be alternatively plate-like structures or ring-like structures, which are not limited herein.

It will be appreciated that the side magnetic circuit portion 223 may be of annular configuration, with the annular side magnetic circuit portion 223 surrounding the central magnetic circuit portion 222 and spaced from the central magnetic circuit portion 222 to form the annular first magnetic gap 221. Alternatively, the side magnetic path portion 223 may have a circular ring shape, or a polygonal shape such as a quadrangle, a pentagon, a hexagon, or the like.

Of course, the side magnetic path portion 223 includes a plurality of side magnetic path portions 223 spaced apart and disposed around the center magnetic path portion 222.

In one embodiment, as shown in fig. 3, the side magnetic circuit portion 223 includes a plurality of side magnetic circuit portions 223 disposed around the center magnetic circuit portion 222 and spaced apart from the center magnetic circuit portion 222 to form the first magnetic gap 221, and adjacent two side magnetic circuit portions 223 are spaced apart to form a gap communicating with the first magnetic gap 221.

In the present embodiment, the center magnetic circuit portion 222 and the side magnetic circuit portion 223 of the first magnetic circuit portion 22 are magnetized in the vertical direction, and the magnetizing directions of the center magnetic circuit portion 222 and the side magnetic circuit portion 223 are opposite. It will be appreciated that the center magnet of the center magnetic circuit portion 222 and the side magnets of the side magnetic circuit portion 223 are magnetized in the vertical direction, and that the magnetizing directions of the center magnet and the side magnets are opposite. It will be appreciated that such an arrangement may enable optimisation of the non-linear performance of the BL.

Alternatively, the magnetizing directions of the center magnetic circuit portion 222 and the side magnetic circuit portion 223 of the first magnetic circuit portion 22 are the same as the vibration directions of the first vibration assembly 31, that is, the first vibration assembly 31 vibrates in the vertical direction. It will be appreciated that the magnetizing directions of the center magnet of the center magnetic circuit portion 222 and the side magnet of the side magnetic circuit portion 223 are the same as the vibration direction of the first vibration assembly 31, that is, the center magnet of the center magnetic circuit portion 222 and the side magnet of the side magnetic circuit portion 223 are both magnetized in the vertical direction.

In one embodiment, the second magnetic circuit portion 23 is opposite and spaced from a portion of the central magnetic circuit portion 222 and a portion of the side magnetic circuit portion 223 to cooperatively form a second magnetic gap 231.

In the present embodiment, the central magnetic circuit portion 222 includes a central magnetic circuit 2221 and a first common magnetic circuit 2222 connected, the side magnetic circuit portion 223 includes a side magnetic circuit 2231 and a second common magnetic circuit 2232, the side magnetic circuit 2231 is located outside the central magnetic circuit 2221 and forms a first sub-gap 2223 at intervals, the second common magnetic circuit 2232 is located on a side of the first common magnetic circuit 2222 facing away from the central magnetic circuit 2221 and forms a second sub-gap 2233 at intervals, and the first sub-gap 2223 communicates with the second sub-gap 2233 to form the first magnetic gap 221; the second magnetic circuit portion 23 includes a first magnet 232 and a second magnet 233 disposed in spaced relation, the first magnet 232 being opposed to and spaced from the first common magnetic circuit 2222 to form a third sub-gap 234, the second magnet 233 being opposed to and spaced from the second common magnetic circuit 2232 to form a fourth sub-gap 235, the third sub-gap 234 and the fourth sub-gap 235 being in communication and forming a second magnetic gap 231.

Optionally, the second voice coil 322 is a flat voice coil, the second voice coil 322 has two long axis sides and two short axis sides connected end to end, the two long axis sides of the second voice coil 322 are respectively located in the third sub-gap 234 and the fourth sub-gap 235, and the current directions in the two long axis sides of the second voice coil 322 are opposite.

In the present embodiment, as shown in fig. 3 to 5, the central magnetic circuit 2221 of the central magnetic circuit portion 222 and the first common magnetic circuit 2222 may be integrally formed, or may be integrally formed by bonding or the like, and are not limited thereto. It will be appreciated that the central magnetic circuit 2221 and the first common magnetic circuit 2222 each include a central magnet and a central washer, and the central washer of the central magnetic circuit 2221 and the first common magnetic circuit 2222 may be a unitary structure, that is, the central magnetic circuit 2221 and the first common magnetic circuit 2222 share a central washer, which is not limited herein.

It will be appreciated that the side magnetic circuit portion 223 includes a side magnetic circuit 2231 and a second common magnetic circuit 2232, i.e., a portion of the side magnetic circuit portion 223 is the second common magnetic circuit 2232, and another portion of the side magnetic circuit portion 223 is the side magnetic circuit 2231. Alternatively, the side magnetic circuit 2231 and the second common magnetic circuit 2232 of the side magnetic circuit portion 223 may be integrally connected or may be separately provided.

In the present embodiment, the side magnetic path portion 223 includes a plurality of side magnetic path portions 223 including the side magnetic path 2231 and the second common magnetic path 2232. Alternatively, the side magnetic circuit portion 223 includes four, one being the second common magnetic circuit 2232 and three being the side magnetic circuit 2231. It can be appreciated that the three side magnetic circuits 2231 are spaced apart from the central magnetic circuit 2221 to form a first sub-gap 2223, the second common magnetic circuit 2232 is positioned on a side of the first common magnetic circuit 2222 facing away from the central magnetic circuit 2221 to form a second sub-gap 2233, and the first sub-gap 2223 communicates with the second sub-gap 2233 to form the first magnetic gap 221.

The side magnetic circuit 2231 and the second common magnetic circuit 2232 each include a side magnet and Bian Huasi that are stacked, and the side magnet is disposed between Bian Huasi and the basin frame 21.

It will be appreciated that the second magnetic circuit portion 23 may be of unitary or split construction. As one embodiment, the second magnetic circuit portion 23 includes a first magnet 232 and a second magnet 233 disposed at a spacing, wherein the first magnet 232 is located below the first common magnetic circuit 2222 and opposite and spaced from the first common magnetic circuit 2222 to form a third sub-gap 234, and the second magnet 233 is located below the second common magnetic circuit 2232 and opposite and spaced from the second common magnetic circuit 2232 to form a fourth sub-gap 235, and the third sub-gap 234 and the fourth sub-gap 235 communicate and form a second magnetic gap 231. As shown in fig. 11, the second magnetic circuit portion 23 may be a unitary structure, and the first magnet 232 may be a magnetization region of the second magnetic circuit portion 23, and the second magnet 233 may be a magnetization region of the second magnetic circuit portion 23.

In order to enable the magnetic circuit system 2 to simultaneously provide the magnetic field and the driving force for the first vibration assembly 31 and the second vibration assembly 32, the central magnetic circuit portion 222 and the side magnetic circuit portion 223 are magnetized in opposite directions along the vibration direction of the first vibration assembly 31, and the first magnet 232 and the second magnet 233 are magnetized in opposite directions along the vibration direction of the first vibration assembly 31, so that the magnetization directions of the first magnet 232 and the central magnetic circuit portion 222 are the same.

To ensure that the second magnetic circuit portion 23 provides a sufficient magnetic field in cooperation with the first common magnetic circuit 2222 and the second common magnetic circuit 2232. Alternatively, the thickness of the first common magnetic circuit 2222 is greater than or equal to the thickness of the central magnetic circuit 2221. Optionally, the thickness of the second common magnetic circuit 2232 is greater than or equal to the thickness of the side magnetic circuit 2231. It will be appreciated that the magnet thicknesses of the first and second common magnetic circuits 2222, 2232 are greater than or equal to the magnet thicknesses of the center magnetic circuit 2221 and the side magnetic circuits 2231.

In the present embodiment, as shown in fig. 4 and 5, the thickness of the first magnet 232 is greater than or equal to the thickness of the central magnetic circuit 2221. The thickness of the second magnet 233 is greater than or equal to the thickness of the side magnetic circuit 2231. Alternatively, the first and second common magnetic circuits 2222 and 2232 are magnetized in the vertical direction, and the magnetization directions of the magnets of the first and second common magnetic circuits 2222 and 2232 are opposite.

Alternatively, the first magnet 232 and the first common magnetic circuit 2222 are magnetized in the vertical direction, and the magnetization directions of the first magnet 232 and the magnets of the first common magnetic circuit 2222 are the same. The second magnet 233 and the second common magnetic circuit 2232 are magnetized in the vertical direction, and the magnetizing directions of the second magnet 233 and the magnets of the second common magnetic circuit 2232 are the same, so that the nonlinear performance of the BL can be optimized.

It will be appreciated that the magnetizing directions of the first magnet 232 and the first common magnetic circuit 2222 are the same as the vibration directions of the first vibration assembly 31, that is, the first vibration assembly 31 vibrates in the vertical direction. The magnetizing direction of the second magnet 233 and the second common magnetic circuit 2232 is the same as the vibration direction of the first vibration assembly 31.

In one embodiment, second magnetic circuit portion 23 is opposite and spaced from a portion of side magnetic circuit portion 223 to cooperatively form second magnetic gap 231.

In the present embodiment, as shown in fig. 12, the center magnetic circuit portion 222 includes a center magnetic circuit 2221, the side magnetic circuit portion 223 includes a side magnetic circuit 2231 and a second common magnetic circuit 2232, the side magnetic circuit 2231 is located outside the center magnetic circuit 2221 and is spaced to form a first sub-gap 2223, the second common magnetic circuit 2232 is located outside the center magnetic circuit 2221 and is spaced to form a second sub-gap 2233, and the first sub-gap 2223 communicates with the second sub-gap 2233 to form the first magnetic gap 221;

The second magnetic circuit portion 23 includes a third magnet 236, and the third magnet 236 is opposed to the second common magnetic circuit 2232 with a second magnetic gap 231 formed therebetween.

More specifically, the third magnet 236 has a first magnetization region 2361 and a second magnetization region 2362, the second common magnetic circuit 2232 includes a third magnetization region 237 and a fourth magnetization region 238, the first magnetization region 2361 and the third magnetization region 237 are opposed to and spaced apart to form a fifth sub-gap, the second magnetization region 2362 and the fourth magnetization region 238 are opposed to and spaced apart to form a sixth sub-gap, the fifth sub-gap and the sixth sub-gap are in communication, and the second magnetic gap 231 is formed.

Optionally, the second voice coil 322 is a flat voice coil, the second voice coil 322 has two long axis sides and two short axis sides connected end to end, the two long axis sides of the second voice coil 322 are respectively located in the fifth sub-gap and the sixth sub-gap, and the current directions in the two long axis sides of the second voice coil 322 are opposite.

In the present embodiment, the central magnetic circuit 2221 of the central magnetic circuit portion 222 includes a central magnet and a central washer; the side magnetic path portion 223 includes a side magnetic path 2231 and a second common magnetic path 2232, that is, a part of the side magnetic path portion 223 is the second common magnetic path 2232, and the other part of the side magnetic path portion 223 is the side magnetic path 2231. Alternatively, the side magnetic circuit 2231 and the second common magnetic circuit 2232 of the side magnetic circuit portion 223 may be integrally connected or may be separately provided.

The side magnetic circuit 2231 includes a side magnet and a side magnet Bian Huasi that are stacked, and the side magnet is disposed between Bian Huasi and the basin 21, and the second common magnetic circuit 2232 includes a second common magnet and a second common washer that are stacked. It will be appreciated that the second shared magnetic circuit 2232 includes a third magnetization region 237 and a fourth magnetization region 238, i.e., the second shared magnet includes the third magnetization region 237 and the fourth magnetization region 238.

In this embodiment, in order to enable the magnetic circuit system 2 to provide the magnetic field and the driving force for the first vibration assembly 31 and the second vibration assembly 32 at the same time, the central magnetic circuit portion 222, the side magnetic circuit portion 223 and the second magnetic circuit portion 23 are all magnetized along the vibration direction of the first vibration assembly 31, the magnetization directions of the first magnetization region 2361 and the third magnetization region 237 are the same, the magnetization directions of the second magnetization region 2362 and the fourth magnetization region 238 are the same, the magnetization directions of the first magnetization region 2361 and the second magnetization region 2362 are opposite, and the magnetization directions of the first magnetization region 2361 and the central magnetic circuit portion 222 are opposite.

It will be appreciated that the third magnet 236 may be of unitary construction or two parts spaced apart, with the first and second magnetized regions 2361 and 2362 being correspondingly adjacent or spaced apart; the second common magnetic path 2232 may be of unitary construction or two spaced apart, with the third 237 and fourth 238 magnetizing regions spaced apart.

To ensure air pressure balance of the vibration space within the sound emitting device 100, vibration balance of the first vibration assembly 31 and the second vibration assembly 32 is ensured. In an embodiment, the basin stand 21 is provided with a venting hole, so as to prevent impurities or sound-absorbing particles from entering the sounding device 100 from the venting hole, and affecting the performance of the sounding device 100, the sounding device 100 further comprises a mesh cloth corresponding to the venting hole.

In one embodiment, as shown in fig. 2 and 3, the first section 211 is provided with a first air vent hole 214, and the sound generating device 100 further includes a first mesh cloth 41 disposed corresponding to the first air vent hole 214. It will be appreciated that first bleed hole 214 corresponds to first magnetic gap 221 and/or the gap formed between two side magnetic circuit portions 223.

Of course, the second section 212 is provided with second venting holes 215, and the sound generating device 100 further includes a second mesh 42 disposed corresponding to the second venting holes 215. It is understood that the second leakage hole 215 corresponds to the second magnetic gap 231.

In an embodiment, the first vibration assembly 31 includes a first diaphragm 311 and a first voice coil 312, wherein the first diaphragm 311 is connected to the first housing 12, and the other end of the first voice coil 312 is suspended in the first magnetic gap 221.

In this embodiment, as shown in fig. 3, 4, 6 and 7, the first diaphragm 311 includes a central portion, a ring portion disposed around the central portion, and a fixing portion disposed outside the ring portion, and the fixing portion is connected to the first shell 12 of the housing 1, so that the first diaphragm 311 covers the first opening 121. It can be understood that the central portion, the folded ring portion and the fixing portion of the first diaphragm 311 are integrally formed. The folded ring part is arranged around the central part and is positioned between the central part and the fixed part, and the folded ring part can be of an upward or downward convex structure. The first diaphragm 311 is connected and fixed with the first casing 12 of the housing 1 of the sound generating device 100 through a fixing portion, so as to improve the connection stability and the tightness between the housing 1 and the first diaphragm 311.

It is understood that, in order to increase the effective vibration area of the first diaphragm 311, the fixing portion may be formed by extending the outer side of the folded ring portion downward or upward, so that the fixing portion is fixedly connected to the inner side wall or the outer side wall of the housing 1.

In an embodiment, the first diaphragm 311 is provided with a conductive layer 3111, one end of the first voice coil 312 is connected to the first diaphragm 311, and a lead of the first voice coil 312 is electrically connected to the conductive layer 3111.

Alternatively, the first diaphragm 311 is disposed in a square shape, and the conductive layer 3111 may be disposed at a corner portion of the first diaphragm 311, although the conductive layer 3111 may also be disposed at a major axis side or a minor axis side of the first diaphragm 311, and the like, which is not limited herein.

In this embodiment, the conductive layer 3111 can be conductive, so that the first voice coil 312 is electrically connected to an external circuit through the conductive layer 3111. It is understood that the conductive layer 3111 may be disposed on the first diaphragm 311 by bonding, or may be disposed on the first diaphragm 311 by spraying. Optionally, the conductive layer 3111 is coated on a side of the first diaphragm 311 facing the magnetic circuit system 2, for example, a coating structure is formed after curing by a film coating method, which is not limited herein.

It is to be understood that the conductive layer 3111 is made of a material capable of conducting electricity. Of course, the conductive layer 3111 may be formed by doping, mixing, or disposing a conductive material in the substrate, which is not limited herein. In this embodiment, the lead wire of the first voice coil 312 is connected to the conductive layer 3111 through conductive adhesive, so as to improve the connection effect and achieve insulation with the outside, and an insulating external fixing adhesive is coated to improve the connection stability, and meanwhile, to avoid the lead wire of the first voice coil 312 from affecting the vibration effect and the sounding effect of the first diaphragm 311 during the vibration process of the first diaphragm 311.

Alternatively, one end of the conductive layer 3111 is located at a central portion of the first diaphragm 311, and the other end of the conductive layer 3111 extends to the fixing portion across the folded portion of the first diaphragm 311. The conductive layer 3111 has excellent compliance, and does not affect the compliance of the folded ring of the first diaphragm 311. The first voice coil 312 is fixed to the conductive layer 3111 by an adhesive process, and is electrically connected.

In this embodiment, the first voice coil 312 may be a square or racetrack ring structure, and the first voice coil 312 has two long axis sides and two short axis sides connected end to end, that is, the two short axis sides of the first voice coil 312 are opposite and spaced apart, and the two long axis sides are opposite and spaced apart, so that the long axis sides and the short axis sides are connected end to form the ring structure.

In this embodiment, the hollow hole is formed in the central portion of the first diaphragm 311, so that the overall weight of the first diaphragm 311 can be effectively reduced. Optionally, a hollow hole is formed in the central position of the central portion, and the hollow hole can be a through hole or a hollow hole or an opening. Alternatively, the number of the hollowed-out holes may be one or more, which is not limited herein.

In order to strengthen the structural strength of the first diaphragm 311, the first diaphragm 311 is prevented from being deformed during the vibration process. In an embodiment, the first vibration assembly 31 further includes a first dome 314, and the first dome 314 is connected to a side of the first diaphragm 311 facing away from the first voice coil 312. It can be understood that, through setting up first dome 314 in the central part of first vibrating diaphragm 311, first dome 314 is connected in the central part to cover the fretwork hole, strengthen the structural strength of first vibrating diaphragm 311 on the one hand, on the other hand also can avoid outside impurity or dust to get into sound generating mechanism 100's inside through the fretwork hole, avoid first vibrating diaphragm 311 can take place shrink deformation volume aggravation simultaneously at the vibration in-process, thereby reduce sound generating mechanism 100's THD distortion is higher, promote audio frequency effect.

In one embodiment, a first conductive insert 122 is disposed within the housing 1, the first conductive insert 122 being for electrical connection with an external circuit.

In the present embodiment, as illustrated in fig. 2, 3 and 9, by providing the first conductive insert 122 in the first casing 12 of the housing 1, the first voice coil 312 is conducted to an external circuit through the first conductive insert 122. Alternatively, the first conductive insert 122 is integrally injection molded with the first shell 12 of the housing 1. Alternatively, an end of the conductive layer 3111 remote from the first voice coil 312 is electrically connected to the first conductive insert 122, and an external circuit is electrically connected to the conductive layer 3111 through the first conductive insert 122, so that the first voice coil 312 is electrically connected to the external circuit.

It will be appreciated that the first conductive insert 122 is provided with inner and outer pads for solder connection to an external circuit, the inner pad being solder connected or bonded to the conductive layer 3111, without limitation.

In an embodiment, as shown in fig. 3, 4 and 6, the first vibration assembly 31 further includes a first centering support 313, one end of the first centering support 313 is connected to the housing 1, and the other end of the first centering support 313 is connected to an end of the first voice coil 312 away from the first diaphragm 311.

In the present embodiment, one end of the first centering support 313 is connected to the first case 12 of the housing 1, and the other end of the first centering support 313 passes through a notch formed between the side magnetic circuit portions 223 and is connected to a side of the first voice coil 312 facing away from the first diaphragm 311. It can be understood that, by arranging the first centering support 313, one end of the first centering support 313 is connected with the first shell 12 of the housing 1, and the other end of the first centering support 313 is connected with the first voice coil 312, so that the first centering support 313 is utilized to balance and stabilize the vibration of the first voice coil 312 driving the first vibrating diaphragm 311, and the first voice coil 312 is prevented from driving the first vibrating diaphragm 311 to swing or polarization.

Optionally, the first centering support 313 includes four, and the four first centering support 313 are disposed corresponding to the four notches of the first magnetic circuit portion 22 of the magnetic circuit system 2. In this embodiment, the first centering support 313 includes an outer fixing portion, an inner fixing portion, and an elastic portion connected between the outer fixing portion and the inner fixing portion, the outer fixing portion is connected to the first casing 12 of the housing 1, and the inner fixing portion is connected to a side of the first voice coil 312 facing away from the first diaphragm 311.

In this embodiment, the first centering support 313 may be made of PI material, which is not limited herein. Of course, in other embodiments, the first centering support 313 may be made of FPCB, or a conductive circuit is disposed in the first centering support 313, so that one end of the first centering support 313 may be electrically connected to a lead of the first voice coil 312, and the other end of the first centering support 313 is fixed on the housing 1 for connection and conduction with an external circuit, so that the first centering support 313 is used to connect and conduct the external circuit with the first voice coil 312, thereby effectively avoiding the risk of wire breakage of the lead of the first voice coil 312 during vibration.

In an embodiment, the second vibration assembly 32 includes a diaphragm assembly 321 and a second voice coil 322, wherein the diaphragm assembly 321 is connected to the second housing 13, and the second voice coil 322 is disposed in the second magnetic gap 231.

In an embodiment, the diaphragm assembly 321 includes a second diaphragm 3213 and a second dome 3214, the second dome 3214 is disposed at a center of the second diaphragm 3213, and the second dome 3214 has a connection portion extending toward the second voice coil 322, and the connection portion is connected to the second voice coil 322.

Optionally, the second vibration assembly 32 further includes a connecting rod 323, one end of the connecting rod 323 is connected to the diaphragm assembly 321, and the other end of the connecting rod 323 extends into the second magnetic gap 231 and is connected to the second voice coil 322.

In this embodiment, as shown in fig. 3, 4, 5 and 8, the diaphragm assembly 321 is connected to a side of the second casing 13 of the housing 1 facing away from the second magnetic circuit portion 23 of the magnetic circuit system 2, and the second voice coil 322 is optionally a flat voice coil, and the second voice coil 322 has a square or racetrack ring structure. It will be appreciated that the second voice coil 322 has two major and two minor axis sides connected end to end, i.e., the two minor axis sides of the second voice coil 322 are opposite and spaced apart, and the two major axis sides are opposite and spaced apart such that the major and minor axis sides are connected end to form a ring-like structure.

Alternatively, the two long axis sides of the second voice coil 322 are located in the third sub-gap 234 and the fourth sub-gap 235, respectively, and the current directions in the two long axis sides of the second voice coil 322 are opposite. In this embodiment, one end of the connecting rod 323 is connected to the diaphragm assembly 321, and the other end of the connecting rod 323 extends into the second magnetic gap 231 through the second opening 131 of the second housing 13 and is connected to the second voice coil 322.

In this embodiment, the connecting rod 323 is used for transmitting the vibration of the second voice coil 322 to the diaphragm assembly 321, so as to drive the diaphragm assembly 321 to vibrate and sound. Alternatively, the connecting bar 323 is a plate-like, bar-like or rod-like structure, which is not limited herein.

In an embodiment, as shown in fig. 3, 4 and 8, the diaphragm assembly 321 includes a mounting shell 3211, a second diaphragm 3213 and a second dome 3214, the mounting shell 3211 is connected to the second housing 13, the second diaphragm 3213 is disposed on the mounting shell 3211, the second diaphragm 3213 and the mounting shell 3211 are integrally formed, and the second dome 3214 is disposed on a side of the second diaphragm 3213 facing the connecting rod 323.

In the present embodiment, the mounting case 3211 is connected to the second housing 13 by welding or bonding. Of course, the mounting case 3211 and the second housing 13 may be formed integrally, which is not limited herein. It can be understood that the installation shell 3211 has a cylindrical structure with two open ends, that is, the installation shell 3211 is provided with a third opening 3212 corresponding to the second opening 131 of the second housing 13, and the second diaphragm 3213 is disposed in the third opening 3212 and covers the second opening 131 of the second housing 13.

Optionally, the mounting housing 3211 and the second diaphragm 3213 are an integrally formed structure. It can be appreciated that by disposing the second dome 3214, the second dome 3214 is disposed on a side of the second diaphragm 3213 facing the connecting rod 323, thereby further enhancing the structural strength of the second diaphragm 3213.

In the present embodiment, the connecting rods 323 include two, and the two connecting rods 323 are disposed at intervals. It can be appreciated that the two connecting rods 323 are symmetrically disposed at two ends of the second voice coil 322, so as to ensure the balance of the vibration of the second diaphragm 3213, so as to improve the vibration effect and the sound effect.

In an embodiment, as shown in fig. 8, the connecting rod 323 is bent near one end of the second diaphragm 3213 to form a fixing portion 3231, the second dome 3214 is formed with a limiting groove 3215 corresponding to the fixing portion 3231, and the fixing portion 3231 is accommodated in and limited by the limiting groove 3215. It can be appreciated that, by such arrangement, the connection stability of the connecting rod 323 can be improved, and the positioning effect on the connecting rod 323 can be realized.

In one embodiment, as shown in fig. 3, 8 and 9, a second conductive insert 132 is further provided in the housing 1, and the second conductive insert 132 is used for electrical connection with an external circuit.

Optionally, the connecting rod 323 is bent adjacent to the second dome 3214 to form a positioning portion 3232, the second vibration assembly 32 further includes a second centering support piece 324, one end of the second centering support piece 324 is connected to the positioning portion 3232 and is electrically connected to a lead wire of the second voice coil 322, and the other end of the second centering support piece 324 is electrically connected to the second conductive insert 132.

In the present embodiment, by providing the second conductive insert 132 in the second case 13 of the housing 1, the external circuit is electrically connected to the second centering pad 324 through the second conductive insert 132, so that the first voice coil 312 is electrically connected to the external circuit through the second centering pad 324. Optionally, the second conductive insert 13 is injection molded integrally with the second shell 13 of the housing 1.

It will be appreciated that the second conductive insert 132 is provided with an inner pad for solder connection with an external circuit and an outer pad for solder connection or bonding with the second centering pad 324, without limitation.

In this embodiment, the second centering support 324 is provided, so that the second centering support 324 is used to balance and stabilize the vibration of the second voice coil 322 driving the connecting rod 323 and the second diaphragm 3213, and the second voice coil 322 and the second diaphragm 3213 are prevented from swinging or polarizing. Optionally, the second centering tabs 324 include two, and the two second centering tabs 324 are disposed corresponding to the two connecting rods 323.

It can be appreciated that, the positioning portion 3232 is formed by bending the connecting rod 323 adjacent to the second dome 3214, so that the positioning portion 3232 is used to connect one end of the second centering support 324 connected to the lead wire of the second voice coil 322, so that the risk of breakage of the lead wire of the second centering support 324 and the second voice coil 322 during the vibration process of the second voice coil 322 can be avoided.

In an embodiment, the diaphragm assembly 321 protrudes toward a side away from the magnetic circuit system 2, or alternatively, the diaphragm assembly 321 protrudes toward a side close to the magnetic circuit system 2. Therefore, when the electronic equipment is assembled in the electronic equipment such as the intelligent glasses, the appearance of the electronic equipment can be better matched, the occupation of the space of the electronic equipment is reduced, and the electronic equipment is flexibly selected according to actual conditions.

In an embodiment, as shown in fig. 1, 3 and 4, the sound generating apparatus 100 further includes a front shell 51 and a first dust-proof net 52, where the front shell 51 is disposed corresponding to the first vibration assembly 31, and the first dust-proof net 52 is connected to a side of the front shell 51 facing away from the first vibration assembly 31.

It can be appreciated that the first vibrating diaphragm 311 of the first vibrating assembly 31 is protected by the front shell 51, the front shell 51 is provided with a hollow hole, so as to avoid impurities and the like affecting the vibrating effect of the first vibrating diaphragm 311 through the hollow hole, and the first dust screen 52 is connected to one side of the front shell 51 opposite to the first vibrating assembly 31, so that the impurities and the like are effectively prevented from entering the sound generating device 100 through the hollow hole through the first dust screen 52.

In an embodiment, as shown in fig. 1 to 4, the sound generating apparatus 100 further includes a sound guiding pipe 61 and a second dust-proof screen 62, where the sound guiding pipe 61 is disposed corresponding to the second vibration assembly 32, and the second dust-proof screen 62 is connected to the sound guiding pipe 61. It can be understood that the sound guide pipe 61 is of a hollow structure, that is, a sound outlet pipe is formed in the sound guide pipe 61, so that the sound emitted by the second diaphragm 3213 of the second vibration assembly 32 can be conveniently and smoothly discharged through the sound outlet pipe of the sound guide pipe 61.

Further, the surface of the second housing 13 is provided with a heat-melting column, and the sound guiding pipeline 61 is correspondingly provided with a fixing part, and the second housing 13 and the sound guiding pipeline 61 are fixed in a heat-melting manner.

It can be understood that, after the first voice coil 312 disposed in the first magnetic gap 221 receives the externally changed ac signal, the first diaphragm 311 of the first vibration assembly 31 in the vibration system 3 is driven by the magnetic force of the first magnetic circuit portion 22 of the magnetic circuit system 2 to reciprocate to cut the magnetic force lines, so as to vibrate and sound in the vertical direction. After the second voice coil 322 receives the alternating current signal transmitted by the second centering support piece 324, the magnetic force in the second magnetic gap formed by the second magnetic circuit part 23 and the first magnetic circuit part 22 in the magnetic circuit system 2 is fully utilized to drive the magnetic force to reciprocate to cut magnetic force lines in the left-right direction, so that the magnetic field of the magnetic circuit system 2 is fully utilized, the first voice coil 312 and the second voice coil 322 respectively drive the first vibrating diaphragm 311 and the second vibrating diaphragm 3213 to vibrate and sound, and the sound production effect of the sound production device 100 is effectively improved.

In the sound generating device 100 of the present utility model, the first vibration component 31 is used for bass sound production, and the second vibration component 32 is used for treble sound production, so that the bandwidth of the sound generating device 100 can be expanded, and the tone of the sound generating device 100 is richer and the tone quality is better.

Specifically, the sound generating apparatus 100 has a frequency division point F1, and when the sound generating apparatus 100 is used in an electronic device, fh (front cavity resonance frequency) corresponding to the first vibration component is greater than or equal to 4kHz and less than or equal to 7kHz, and F1 > Fh. In this way, abrupt phase changes of the sound waves of the first vibration assembly 31 and the second vibration assembly 32 at the frequency division point F1 can be avoided, and the vibration directions of the first vibration assembly 31 and the second vibration assembly 32 at the frequency division point F1 are ensured to be consistent, so that the sound pressure of the sound generating device 100 is stable.

Optionally, F1 is greater than or equal to 6kHz, so that the sound pressure level curve of the sound generating device formed by combining the first vibration component 31 and the second vibration component 32 is smoother, and no larger dip is generated, so that the hearing feeling is natural.

Further, the division point F1 is 6kHz or more and 10kHz or less, and the division point F1 may be 6kHz, 6.5kHz, 7kHz, 7.5kHz, 8kHz, 8.5kHz, 9kHz, 9.5kHz, 10kHz, or the like. Thus, the sound pressure levels of the first vibration component 31 and the second vibration component 32 can be better joined at the frequency division point, and the sound quality is richer and natural. The sounding device 100 in this embodiment has deep and powerful bass sounds and rich and clear high-pitched sounds.

In one embodiment, the housing 1 of the sound generating apparatus 100 is provided with conductive inserts, where the conductive inserts include a first conductive insert 122 electrically connected to the first vibration assembly 31, a second conductive insert 132 electrically connected to the second vibration assembly 32, and a common conductive insert 14 electrically connected to both the first vibration assembly 31 and the second vibration assembly 32. The design skillfully utilizes the appearance structure of the shell 1, reduces the injection molding number and process of the conductive inserts, reduces the size of an external electric connector (flexible circuit board), and further reduces the production cost.

Optionally, one end of the common conductive insert 14 is exposed to the housing to form a common pad, the other end of the common conductive insert 14 includes a first conductive leg 141 and a second conductive leg 142, the first conductive leg 141 is exposed to the housing 1 to form a first sub-pad, the second conductive leg 142 is exposed to the housing 1 to form a second sub-pad, the first sub-pad is electrically connected to the first vibration assembly 31, the second sub-pad is electrically connected to the second vibration assembly 32, and the common pad is electrically connected to an external circuit.

Optionally, the first conductive insert 122 is injection molded to the first housing 12, the second conductive insert 132 is injection molded to the second housing 13, and the common conductive insert 73 is disposed at a connection region between the first housing 12 and the second housing 13.

The utility model also provides electronic equipment, which comprises an equipment shell and the sounding device 100, wherein the sounding device 100 is arranged on the equipment shell. The specific structure of the sound generating device 100 refers to the foregoing embodiments, and because the electronic device adopts all the technical solutions of all the foregoing embodiments, the sound generating device at least has all the beneficial effects brought by the technical solutions of the foregoing embodiments, which are not described in detail herein.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all equivalent structural modifications made by the present description and accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. A sound emitting device, the sound emitting device comprising:

2. The sound generating apparatus of claim 1, wherein the magnetic circuit system comprises:

a basin stand;

3. The sound emitting apparatus of claim 2 wherein the central magnetic circuit portion comprises a central magnetic circuit and a first common magnetic circuit connected, the side magnetic circuit portion comprises a side magnetic circuit and a second common magnetic circuit, the side magnetic circuit is located outside the central magnetic circuit and spaced to form a first sub-gap, the second common magnetic circuit is located on a side of the first common magnetic circuit facing away from the central magnetic circuit and spaced to form a second sub-gap, the first sub-gap is in communication with the second sub-gap to form the first magnetic gap;

4. The sound emitting apparatus of claim 3 wherein the second voice coil has two major and two minor axis sides connected end to end, the two major axis sides being located within the third and fourth sub-gaps, respectively.

5. The sound emitting apparatus of claim 3 wherein the thickness of the first common magnetic circuit is greater than or equal to the thickness of the central magnetic circuit;

6. The sound generating apparatus according to claim 2, wherein the central magnetic circuit portion includes a central magnetic circuit, the side magnetic circuit portion includes a side magnetic circuit and a second common magnetic circuit, the side magnetic circuit is located outside the central magnetic circuit and forms a first sub-gap at intervals, the second common magnetic circuit is located outside the central magnetic circuit and forms a second sub-gap at intervals, the first sub-gap communicates with the second sub-gap to form the first magnetic gap;

7. The sound generating apparatus of claim 6, wherein the central magnetic circuit portion, the side magnetic circuit portions and the second magnetic circuit portion are magnetized in a vibration direction of the first vibration assembly, the first magnetization region and the third magnetization region are identical in magnetization direction, the second magnetization region and the fourth magnetization region are identical in magnetization direction, the first magnetization region and the second magnetization region are opposite in magnetization direction, and the first magnetization region and the central magnetic circuit portion are opposite in magnetization direction;

8. The sound generating apparatus according to claim 2, wherein the basin stand comprises a first section, a second section and a third section which are sequentially connected, wherein the first section and the third section are respectively arranged at an included angle with the second section and are positioned on two opposite sides of the second section; part of the first magnetic circuit part is arranged on the first section, and the second magnetic circuit part is arranged on the third section.

9. The sound generating apparatus according to claim 8, wherein the tub is provided with a vent hole communicating with the first magnetic gap and/or the second magnetic gap, and the sound generating apparatus further comprises an isolation net provided corresponding to the vent hole;

and/or the first section and the third section are parallel to the first housing.

10. The sound emitting apparatus of any one of claims 1-9, wherein the first vibration assembly comprises:

the first vibrating diaphragm is connected to the first shell; and

the second vibration assembly includes:

and the vibrating diaphragm assembly is connected with the second shell.

11. The sound generating apparatus of claim 10, wherein the diaphragm assembly comprises a second diaphragm and a second dome, the second dome being centered on the second diaphragm, the second dome having a connection portion extending toward the second voice coil, the connection portion being connected to the second voice coil;

12. The sound emitting apparatus of any one of claims 1 to 11, wherein the first vibration assembly is for bass sound and the second vibration assembly is for treble sound;

13. An electronic device comprising a device housing and a sound emitting apparatus according to any one of claims 1 to 12, wherein the sound emitting apparatus is provided in the device housing.