Loudspeaker and electronic device

Abstract

The utility model relates to the technical field of audio, in particular to a loudspeaker and electronic equipment. The embodiment of the utility model provides a loudspeaker, which comprises a shell, a first vibration assembly, a second vibration assembly, a first magnetic circuit assembly, a second magnetic circuit assembly and a magnetic conductive piece, and the magnetic conductive piece is fixed on the inner side of the shell. The loudspeaker comprises two sets of vibration assemblies, the two sets of vibration assemblies are located on the two side faces of the magnetic conductive part, so that the two sets of vibration assemblies can independently produce sound, the first voice coil can drive the first vibrating diaphragm to vibrate, the second voice coil can drive the second vibrating diaphragm to vibrate, and the loudspeaker can have better low-frequency loudness through cooperation of the first vibrating diaphragm and the second vibrating diaphragm; therefore, the sound quality of the loudspeaker is improved. By arranging the magnetic conductive member, the magnetic circuit design is simplified, and the first magnetic circuit assembly and the second magnetic circuit assembly can be supported, so that the design of the support structure of the loudspeaker is simplified, the thin design of the loudspeaker is facilitated, and the adaptability of the loudspeaker to the application environment is improved.

Description

Technical Field

[0001] The present application relates to the field of audio technology, and in particular to a speaker and an electronic device. Background Art

[0002] In recent years, the wearable smart product market has attracted more and more attention, among which head-mounted wearable products, especially smart glasses, are popular. Due to the shape restrictions of glasses, the size of the temples is becoming thinner and narrow. When the speakers are placed on the temples, the speakers are also restricted and need to be designed as small and slender structures. As a result, it is easy to cause the low-frequency loudness of the speakers to be insufficient and the sound quality to be poor. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a speaker and an electronic device.

[0004] In the first aspect, the present application provides a loudspeaker, comprising a shell, a first vibration component, a second vibration component, a first magnetic circuit component, a second magnetic circuit component and a magnetic conductive part, wherein the magnetic conductive part is fixed to the inner side of the shell; the first vibration component comprises a first diaphragm and a first voice coil, the first diaphragm is fixed to the shell and is located on one side of the magnetic conductive part, the first magnetic circuit component is fixed to the side of the magnetic conductive part facing the first diaphragm, one end of the first voice coil is fixedly connected to the first diaphragm, and the other end is located in the magnetic gap of the first magnetic circuit component; the second vibration component comprises a second diaphragm and a second voice coil, the second diaphragm is fixed to the shell and is located on the other side of the magnetic conductive part, the second magnetic circuit component is fixed to the side of the magnetic conductive part facing the second diaphragm, one end of the second voice coil is fixedly connected to the second diaphragm, and the other end is located in the magnetic gap of the second magnetic circuit component.

[0005] In this embodiment, the speaker includes two sets of vibration components, and the two sets of vibration components are located on two sides of the magnetic conductive part, so that the two sets of vibration components can make sounds independently, the first voice coil can drive the first diaphragm to vibrate, and the second voice coil can drive the second diaphragm to vibrate. Through the cooperation of the first diaphragm and the second diaphragm, the speaker can have better low-frequency loudness, thereby improving the sound quality of the speaker.

[0006] In addition, the magnetic conductive member can conduct the magnetic circuit of the first magnetic circuit component, and the magnetic conductive member can support the first magnetic circuit component, which is convenient for reducing the supporting structure of the first magnetic circuit component, which is conducive to simplifying the structure of the speaker, and can reduce the size of the speaker in the thickness direction, which is conducive to the thin design of the speaker. The magnetic conductive member can conduct the magnetic circuit of the second magnetic circuit component, and the magnetic conductive member can support the second magnetic circuit component, which is convenient for reducing the supporting structure of the second magnetic circuit component, which is conducive to simplifying the structure of the speaker, and can reduce the size of the speaker in the thickness direction, which is conducive to the thin design of the speaker.

[0007] In some embodiments, the magnetic conductive part includes a first magnetic conductive part, a connecting part and a second magnetic conductive part, the connecting part fixedly connects the first magnetic conductive part and the second magnetic conductive part, and the first magnetic conductive part and the second magnetic conductive part are arranged in the length direction of the speaker; the first magnetic circuit component is fixed to the first magnetic conductive part, the second magnetic circuit component is fixed to the second magnetic conductive part, the first magnetic conductive part is parallel to the second magnetic conductive part, and the first magnetic conductive part and the second magnetic conductive part are staggered so that the distance between the first magnetic conductive part and the first diaphragm is greater than the distance between the second magnetic conductive part and the first diaphragm.

[0008] In this embodiment, the length of the magnetic conductive part is parallel to the length direction of the speaker, and the first magnetic conductive part and the second magnetic conductive part are offset and parallel, so that the first magnetic circuit component and the second magnetic circuit component overlap in the thickness direction, so that the first magnetic circuit component and the second magnetic circuit component are arranged side by side, and the first magnetic circuit component and the second magnetic circuit component are equivalent to reusing the space in the thickness direction, which is conducive to the thin design of the speaker.

[0009] In some implementations, in the thickness direction of the speaker, the overlapping thickness of the first magnetic circuit component and the second magnetic circuit component is greater than 80% of the thickness of the second magnetic circuit component.

[0010] Exemplarily, the thickness of the first magnetic circuit component and the thickness of the second magnetic circuit component can be the same. The top surface of the first central magnetic conductive part can be flush or nearly flush with the top surface of the second magnetic conductive part, and the bottom surface of the second central magnetic conductive part can be flush or nearly flush with the bottom surface of the first magnetic conductive part. At this time, in the direction of the thick bottom, only the thickness of the first magnetic circuit component or the second magnetic circuit component is used to realize the setting of the first magnetic circuit component and the second magnetic circuit component, which has a high utilization rate of the thickness space, reduces the thickness of the speaker, and improves the integration of the speaker.

[0011] In this embodiment, the first magnetic circuit component and the second magnetic circuit component can make greater use of the space in the thickness direction, and can reduce the thickness of the speaker to a greater extent.

[0012] In some embodiments, a first magnetic gap is formed between the first magnetic circuit component and the second magnetic circuit component, and a partial structure of the first voice coil and a partial structure of the second voice coil are located in the first magnetic gap.

[0013] In this embodiment, since the first magnetic circuit assembly and the second magnetic circuit assembly can be arranged side by side, a first magnetic gap can be formed between adjacent magnets between the first magnetic circuit assembly and the second magnetic circuit assembly. When a part of the structure of the first voice coil and a part of the structure of the second voice coil are located in the first magnetic gap, both the first voice coil and the second voice coil can be driven in the first magnetic gap to vibrate. The first magnetic circuit assembly and the second magnetic circuit assembly cooperate with each other, the first voice coil is equivalent to being driven by the magnetic field formed by the first magnetic circuit assembly and the second magnetic circuit assembly, and the second voice coil is equivalent to being driven by the magnetic field formed by the first magnetic circuit assembly and the second magnetic circuit assembly. There are reused magnets in both the first magnetic circuit assembly and the second magnetic circuit assembly. Therefore, the setting of the first magnetic gap can reduce the number of magnets in the first magnetic circuit assembly and the second magnetic circuit assembly, which is conducive to reducing the size of the speaker and simplifying the overall structure of the speaker.

[0014] In some embodiments, the first magnetic circuit assembly includes a first central magnet and a first side magnet, the first side magnet is located on the circumferential side of the first central magnet, and the first central magnet and the first side magnet form a magnetic gap of the first magnetic circuit assembly; the second magnetic circuit assembly includes a second central magnet and a second side magnet, the second side magnet is located on the circumferential side of the second central magnet, and the second central magnet and the second side magnet form a magnetic gap of the second magnetic circuit assembly; a first magnetic gap is formed between the first central magnet and the second central magnet.

[0015] The magnetic poles of the first central magnet and the second central magnet with the same name are arranged in opposite directions, so that a magnetic circuit is formed between the first central magnet and the second central magnet.

[0016] In this embodiment, the first central magnet is disposed adjacent to the second central magnet, and no additional magnet is required between the first central magnet and the second central magnet. Since the first magnetic circuit assembly and the first magnetic circuit assembly are arranged along the length direction of the speaker, the length dimensions of the first magnetic circuit assembly and the first magnetic circuit assembly can be reduced, thereby reducing the length dimension of the speaker.

[0017] In some embodiments, a minimum distance between the first central magnet and the second central magnet is less than or equal to 2 mm.

[0018] In this embodiment, the minimum distance between the first center magnet and the second center magnet, that is, the minimum distance of the first magnetic gap, is reduced by setting a smaller spacing, thereby improving the driving efficiency of the first magnetic gap on the first voice coil and the second voice coil.

[0019] In some implementations, the connecting portion is located in the first magnetic gap, and the connecting portion is located between the first voice coil and the second voice coil.

[0020] In this embodiment, in addition to connecting the first magnetic conductive portion and the second magnetic conductive portion, the connecting portion can also isolate the first voice coil and the second voice coil, thereby reducing the possibility of collision between the first voice coil and the second voice coil when the speaker is working or impacted by external force, thereby improving the reliability of the speaker.

[0021] In some embodiments, the thickness of the connecting portion is smaller than the first magnetic conductive portion and / or the second magnetic conductive portion; or, the thickness of the connecting portion is less than or equal to 0.35 mm, and the thickness of the first magnetic conductive portion and / or the thickness of the second magnetic conductive portion is greater than or equal to 0.35 mm.

[0022] In this embodiment, when the connecting part is located in the first magnetic gap, the thickness of the connecting part, the thickness of the first magnetic conductive part and the thickness of the second magnetic conductive part are reasonably set, so as to reduce the influence on the strength of the magnetic conductive part, thereby helping to reduce the width of the first magnetic gap, improve the sensitivity of the speaker and thus help to improve the sound quality of the speaker.

[0023] In some embodiments, the connecting portion is provided with a connecting hole, and the connecting hole connects the spaces on both sides of the connecting portion;

[0024] The cross-sectional area of ​​the connecting hole in the direction perpendicular to the length of the speaker is greater than half of the cross-sectional area of ​​the first voice coil or the second voice coil in the direction perpendicular to the length of the speaker; or, there are multiple connecting holes, and in the arrangement direction of the first voice coil and the second voice coil, the multiple connecting holes cover at least half of the area of ​​the second voice coil.

[0025] In this embodiment, the connecting portion may block the magnetic circuit in the first magnetic gap. By opening a connecting hole in the connecting portion, a magnetic circuit is directly formed between the first center magnet and the second center magnet, thereby improving the magnetic strength of the first magnetic gap, which is beneficial to improving the sound quality of the speaker.

[0026] In some embodiments, the connecting portion further includes a reinforcing portion, the reinforcing portion is made of metal material, and the reinforcing portion covers the surface of the connecting portion.

[0027] In this embodiment, the reinforcement part may also be a thin film layer, so as to improve the overall structural strength of the magnetic conductive component, so that the bearing capacity of the magnetic conductive component is stronger and the support is more stable.

[0028] In some implementations, the reinforcing portion is made of insulating material, and the reinforcing portion fills the communicating hole.

[0029] In this embodiment, the reinforcement part does not have magnetic conductivity, and will not block the magnetic circuit between the first central magnet and the second central magnet, thereby not affecting the sound quality of the speaker. In addition, the reinforcement part improves the strength of the magnetic conductive part at the connecting part. Since the reinforcement part fills the connecting hole, the connecting part and the space on both sides of the reinforcement part are isolated, and the gas will not be connected to each other, which is conducive to improving the sound quality of the speaker.

[0030] In some embodiments, the magnetic conductive component is an integrated structural component.

[0031] In this embodiment, the manufacture of the magnetic conductive component is relatively simple, and the structural strength of the magnetic conductive component is high, and the supporting performance of the magnetic conductive component is good.

[0032] In some embodiments, a first voice coil and a first magnetic circuit assembly are arranged in a group, a second voice coil and a second magnetic circuit assembly are arranged in a group, and a group of second voice coils and second magnetic circuit assemblies and at least one group of first voice coils and first magnetic circuit assemblies are alternately arranged along a first direction, and the first direction is parallel to the length direction of the speaker.

[0033] The first magnetic circuit assembly and the first voice coil in the same group can work together, and the first magnetic circuit assembly is used to drive the first voice coil to vibrate, so that the first voice coil drives the first diaphragm to vibrate. Of course, the second magnetic circuit assembly and the second voice coil in the same group can work together, and the second magnetic circuit assembly is used to drive the second voice coil to vibrate, so that the second voice coil drives the second diaphragm to vibrate.

[0034] In this embodiment, there may be multiple groups of first voice coils and first magnetic circuit components, and multiple groups of first voice coils and first magnetic circuit components can drive the first diaphragm at the same time, so that the driving force on the first diaphragm is more balanced, which is conducive to preventing the first diaphragm from being offset during vibration, and is conducive to the reasonable arrangement of the first voice coil and the second voice coil, so that the first diaphragm and the second diaphragm are both balanced when vibrating. In addition, multiple groups of first voice coils and first magnetic circuit components can provide a greater driving force for the first diaphragm, which is conducive to improving the sound quality of the speaker. In addition, the first direction is parallel to the length direction of the speaker, which is conducive to designing the speaker into a slender structure, which can improve the speaker's adaptability to application scenarios.

[0035] In some implementations, the first voice coil and the first magnetic circuit assembly are provided in two groups, and the second voice coil and the second magnetic circuit assembly are provided in one group.

[0036] In this embodiment, a set of second voice coils and a second magnetic circuit assembly are located between two sets of first voice coils and first magnetic circuit assemblies, and the two sets of first voice coils and first magnetic circuit assemblies are symmetrically arranged so that the force on the first diaphragm is more balanced when vibrating. The second voice coil can be located in the middle of the second diaphragm so that the force on the second diaphragm is more balanced.

[0037] In some implementations, there are three groups of first voice coils and first magnetic circuit assemblies, and there are two groups of second voice coils and second magnetic circuit assemblies.

[0038] In this embodiment, the number of groups of first voice coils and first magnetic circuit components, and the number of groups of second voice coils and second magnetic circuit components are large. Multiple first voice coils drive the first diaphragm, and have sufficient driving force and driving stability for the first diaphragm. Multiple second voice coils drive the second diaphragm, and have sufficient driving force and driving stability for the second diaphragm, so that the speaker has higher sound quality. At this time, the length-to-width ratio of the speaker is larger, which is conducive to further reducing the width of the speaker and making the speaker adapt to different application scenarios.

[0039] In some implementations, the vibration directions of the first diaphragm and the second diaphragm are parallel, and the first diaphragm and the second diaphragm are used to form an acoustic dipole or an acoustic monopole.

[0040] In this embodiment, in the acoustic dipole mode, according to the dipole principle, the human ear is placed in the effective listening area, and the first diaphragm and the second diaphragm are ensured to have a low loudness to meet the wearer's hearing needs. When the sound is transmitted to a distant place, the two equal-amplitude and anti-phase sound waves will cancel each other out in the far field, forming a mute area, achieving far-field mute, and effectively improving the far-field privacy of the electronic device.

[0041] In the acoustic monopole mode, the speaker can compress the air more, so that the speaker provides a louder loudness, allowing the wearer to get a better in-ear loudness experience and enhance the user experience.

[0042] In some implementations, the length directions of the first voice coil and the second voice coil are parallel to the arrangement direction of the first voice coil and the second voice coil.

[0043] In this embodiment, by setting the length direction of the first voice coil and the second voice coil, the width direction of the speaker is further reduced, which is beneficial to improving the rationality of the structure of the speaker when the speaker is designed with a high aspect ratio.

[0044] In a second aspect, the present application provides an electronic device, including a body and a speaker as provided in any of the above embodiments, wherein the speaker is fixed to the body.

[0045] In this embodiment, the electronic device can have better low-frequency loudness and better sound quality when making sounds. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to illustrate the technical solutions in the embodiments of the present application or the background technology, the drawings required for use in the embodiments of the present application or the background technology will be described below.

[0047] Figure 1 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application;

[0048] Figure 2 yes Figure 1A schematic diagram of the structure of the loudspeaker shown;

[0049] Figure 3 is along Figure 2 Sectional view cut at AA in the middle;

[0050] Figure 4 yes Figure 2 A schematic diagram of the exploded structure of the loudspeaker shown;

[0051] Figure 5 yes Figure 2 A cross-sectional view of the loudspeaker taken along line BB;

[0052] Figure 6 yes Figure 3 a cross-sectional view of the loudspeaker shown at another viewing angle;

[0053] Figure 7 yes Figure 2 A schematic structural diagram of a magnetic conductive component of the loudspeaker shown;

[0054] Figure 8 yes Figure 6 The schematic diagram of the structure of the magnetic conductive member in other embodiments is shown;

[0055] Fig. 9 yes Figure 6 The schematic diagram of the structure of the magnetic conductive member in some other embodiments shown;

[0056] Fig.10 yes Figure 6 The structure schematic diagram of the magnetic conductive member in some other embodiments is shown;

[0057] Fig.11 yes Figure 3 Schematic diagram of the loudspeaker achieving far-field noise cancellation;

[0058] Fig.12 yes Figure 1 Schematic diagram of the internal structure of the speaker of the electronic device in other embodiments;

[0059] Fig.13 It is a schematic diagram of the structure of another electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0060] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0061] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Multiple" means at least two.

[0062] The directional terms mentioned in the embodiments of the present application, such as "upper", "lower", "inside", "outside", "top", "bottom", "side", etc., are only references to the directions of the drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0063] In the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0064] In the embodiments of the present application, the limitations of the relative position relationship mentioned, such as parallel, vertical, aligned, etc. These limitations are all for the current state of the art, rather than absolutely strict limitations, and a small amount of deviation is allowed, and it is possible to be approximately parallel, approximately vertical, approximately aligned, etc. For example, A and B are parallel, which means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 and 10 degrees. For example, A and B are perpendicular, which means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80 and 100 degrees.

[0065] In the embodiments of the present application, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", "third", and "fourth" may explicitly or implicitly include one or more of the features.

[0066] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0067] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0068] The present application provides a loudspeaker and an electronic device. The loudspeaker includes a housing, a first vibration component, a second vibration component, a first magnetic circuit component, a second magnetic circuit component and a magnetic conductive member, wherein the magnetic conductive member is fixed to the inner side of the housing; the first vibration component includes a first diaphragm and a first voice coil, the first diaphragm is fixed to the housing and is located on one side of the magnetic conductive member, the first magnetic circuit component is fixed to the side of the magnetic conductive member facing the first diaphragm, one end of the first voice coil is fixedly connected to the first diaphragm, and the other end is located in the magnetic gap of the first magnetic circuit component; the second vibration component includes a second diaphragm and a second voice coil, the second diaphragm is fixed to the housing and is located on the other side of the magnetic conductive member, the second magnetic circuit component is fixed to the side of the magnetic conductive member facing the second diaphragm, one end of the second voice coil is fixedly connected to the second diaphragm, and the other end is located in the magnetic gap of the second magnetic circuit component. The loudspeaker of the present application has good low-frequency loudness and good sound quality.

[0069] Among them, the electronic device can be augmented reality (AR) glasses, AR helmets or virtual reality (VR) glasses, tablet computers, mobile phones, reading pens, selfie sticks, bracelets, smart watches and other electronic devices that need to use speakers to output audio.

[0070] The following is a specific explanation using the example of an electronic device being AR glasses.

[0071] See also Figure 1 , Figure 1 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0072] In some embodiments, the electronic device 100 includes a frame 10, a display device 20, a speaker 30, and a circuit board 40. The frame 10 serves as the body of the electronic device 100. The display device 20, the speaker 30, and the circuit board 40 are all mounted on the frame 10. The display device 20 and the speaker 30 are both electrically connected to the circuit board 40, and the circuit board 40 is used to control the display device 20 to display and the speaker 30 to sound.

[0073] The frame 10 includes a frame 101 and temples 102 connected to the frame 101. There are two temples 102, and the two temples 102 are connected to opposite ends of the frame 101. It should be noted that in other embodiments, the frame 10 may also include a frame 101 and a fixing belt connected to the frame 101, which is not specifically limited in the present application.

[0074] The material of the frame 101 includes but is not limited to metal, plastic, resin or natural materials. It should be understood that the frame 101 is not limited to Figure 1 The half-frame type frame shown may also be a full-frame type or a frameless type.

[0075] In this embodiment, the number of display devices 20 is two, and the two display devices 20 have the same structure. Specifically, the two display devices 20 are respectively installed on the frame 101. When the electronic device 100 is worn on the user's head, one display device 20 corresponds to the user's left eye, and the other display device 20 corresponds to the user's right eye. At this time, the user's eyes can view virtual scenes or real scenes through the two display devices 20. It should be noted that in other embodiments, the structures of the two display devices 20 may also be different, or the number of the two display devices 20 may also be one or more, and this application does not specifically limit this.

[0076] In this embodiment, the display device 20 is installed in the frame 101 and is electrically connected to the circuit board 40. In this embodiment, the circuit board 40 can be installed inside the temple 102. The number of the circuit boards 40 can be two, and the two circuit boards 40 are respectively located in the two temples 102 and are respectively electrically connected to the corresponding display devices 20. Of course, in other embodiments, the number of the circuit board 40 can also be one, which is located in one of the temples 102.

[0077] Of course, in implementation scenarios of other embodiments, the circuit board 40 can also be installed on the mirror frame 101.

[0078] The two temples 102 are rotatably connected to the opposite ends of the frame 101. Specifically, the two temples 102 are rotatably connected to the frame 101. Figure 1 When the electronic device 100 is in the folded state, the two temples 102 rotate relative to the frame 101 until they are opposite to each other. At this time, the two temples 102 of the electronic device 100 can be respectively mounted on the two ears of the user, and the crossbar is mounted on the bridge of the user's nose to be worn on the user's head. When the electronic device 100 is in the folded state, the two temples 102 rotate relative to the frame 101 until they at least partially overlap each other and are accommodated inside the frame 101. At this time, the electronic device 100 can be stored.

[0079] It should be noted that the directional terms such as "inside" and "outside" used in the present application when referring to the electronic device 100 are mainly explained based on the orientation of the electronic device 100 when it is worn on the head of the user. When the electronic device 100 is worn by the user, the side close to the user's head is the "inside", and the side away from the user's head is the "outside", which does not limit the orientation of the electronic device 100 in other scenarios.

[0080] It is understandable that in other embodiments, the two temples 102 may be fixedly connected to the frame 101 respectively, or the two temples 102 may be integrally formed with the frame 101, that is, the electronic device 100 is always in an unfolded state, and the present application does not make any specific limitation on this.

[0081] It is understandable that the two temples 102 in this embodiment have the same structure. Of course, in other embodiments, the structures of the two temples 102 may also be different.

[0082] Please refer to Figures 2 to 4 , Figure 2 yes Figure 1 The structural diagram of the speaker 30 is shown in FIG. Figure 3 is along Figure 2 The cross-sectional view cut at AA in the middle, Figure 4 yes Figure 2 A schematic diagram of the exploded structure of the speaker 30 is shown.

[0083] In some embodiments, the speaker 30 may include a housing 1, a first vibration component 2, a second vibration component 3, a first magnetic circuit component 4, a second magnetic circuit component 5, and a magnetic conductive member 6. For ease of description, the speaker 30 is defined as having a length direction X, a width direction Y, and a thickness direction Z, and the above directions are arranged perpendicularly in pairs. It can be understood that the speaker 30 and its components or structures have a side of the first diaphragm close to the first vibration component 2 as the "top", and a side of the first diaphragm away from the first vibration component 2 as the "bottom".

[0084] In some examples, the housing 1 may be roughly frame-shaped, for example, the housing 1 may be a rectangular frame, the middle of the housing 1 is hollowed out, and a mounting cavity may be formed inside the housing 1, and the mounting cavity may be used to mount components of the speaker 30. In this case, the housing 1 serves as a supporting structure for the speaker 30. In some examples, the housing 1 may also be called a basin frame. In some other embodiments, the housing 1 may also be a frame of other shapes, such as a circular frame, etc., which is not strictly limited in the embodiments of the present application.

[0085] The housing 1 may include a top shell 11 and a bottom shell 12. Both the top shell 11 and the bottom shell 12 may be roughly frame structures, and the sizes of the top shell 11 and the bottom shell 12 may be roughly the same. For example, the top shell 11 and the bottom shell 12 may be butted together so that the top shell 11 and the bottom shell 12 are fixedly connected to form a complete frame structure. At this time, the top shell 11 and the bottom shell 12 are separately arranged to facilitate the molding of the top shell 11 and the bottom shell 12 and to facilitate assembly. In some other embodiments, the housing 1 may also be an integrally molded structural member, which is not strictly limited in this embodiment.

[0086] The housing 1 may further include a protruding portion 111 (such as Figure 4As shown). The protrusion 111 may be formed on the top shell 11, the protrusion 111 may be located at the lower side of the top shell 11, the protrusion 111 may be arranged toward the bottom shell 12, and the protrusion 111 is used to connect the top shell 11 and the bottom shell 12. The number of the protrusions 111 may be multiple, for example, when the top shell 11 is a rectangular frame, the number of the protrusions 111 may be 4, and one protrusion 111 is arranged at each of the four corners of the top shell 11.

[0087] In some examples, the magnetic conductive member 6 can be fixed to the inner side of the housing 1. In some examples, the magnetic conductive member 6 can be located on the inner side of the space occupied by the housing 1, so that the structure of the speaker 30 is more regular. In some other examples, the magnetic conductive member 6 can also have most of its structure located on the inner side of the housing 1, such as 70% of the structure of the magnetic conductive member 6 can be located in the installation cavity of the housing 1, and the rest of the structure of the magnetic conductive member 6 can be located on the outer side of the housing 1, so as to facilitate the magnetic conductive member 6 to be reliably fixed to the housing 1.

[0088] The magnetic conductive member 6 can be roughly in the form of a bent plate structure, and both ends of the magnetic conductive member 6 are fixed to the housing 1. The magnetic conductive member 6 can divide the installation cavity of the housing 1 into a top side space and a bottom side space. The top side space and the bottom side space can be used to install different components, respectively. In some examples, both ends of the magnetic conductive member 6 can be clamped between the top shell 11 and the bottom shell 12, and fixedly connected to both the top shell 11 and the bottom shell 12, thereby fixing the magnetic conductive member 6 to the housing 1.

[0089] The magnetic conductive member 6 can be made of a magnetic conductive material, for example, an iron-containing alloy material, etc. At this time, the magnetic conductive member 6 can be used for magnetic conduction. When a magnetic body is provided on the magnetic conductive member 6, a magnetic circuit can be formed inside the magnetic conductive member 6, which is beneficial for designing the magnetic circuit of the speaker 30.

[0090] In some embodiments, the first vibration component 2 may be located on one side of the magnetic conductive member 6, and the first magnetic circuit component 4 may be located on the same side of the magnetic conductive member 6 as the first vibration component 2. For example, the first vibration component 2 and the first magnetic circuit component 4 may both be located on the top side of the magnetic conductive member 6.

[0091] In some examples, the first vibration component 2 may include a first diaphragm 21 and a first voice coil 22. The first diaphragm 21 is fixed to the housing 1 and is located on one side of the magnetic conductive member 6, the first magnetic circuit component 4 is fixed to the side of the magnetic conductive member 6 facing the first diaphragm 21, one end of the voice coil is fixedly connected to the first diaphragm 21, and the other end is located in the magnetic gap 45 of the first magnetic circuit component 4.

[0092] Exemplarily, the first diaphragm 21 is fixedly connected to the top shell 11. The first diaphragm 21 may be in a rectangular structure, and the first diaphragm 21 may be fixed to the annular surface at the top of the top shell 11.

[0093] Among them, the first diaphragm 21 may include a vibration part 211, a folding ring part 212 and a fixing part 213. The vibration part 211, the folding ring part 212 and the fixing part 213 are fixedly connected in sequence. The vibration part 211 may be a rectangular structure. The folding ring part 212 surrounds the outer peripheral side of the vibration part 211 and is connected to the vibration part 211; the folding ring part 212 may be deformable, for example, the folding ring part 212 may have an annular structure with an overall curved surface, and the annular structure with the curved surface is easy to deform and stretch, so that the vibration part 211 can be displaced relative to the fixing part 213. The folding ring part 212 may be protruded in a direction away from the top shell 11. The fixing part 213 surrounds the outer peripheral side of the folding ring part 212 and is connected to the folding ring part 212. The fixing part 213 may be an annular structure, so that it is easy to be fixed to the top side of the top shell 11. The folding ring portion 212 and the vibration portion 211 correspond to the hollowed-out position in the middle of the housing 1 , and the hollowed-out position is used to avoid the deformation movement of the folding ring portion 212 and the vibration movement of the vibration portion 211 .

[0094] Exemplarily, the first magnetic circuit component 4 can be fixed to the plate surface on the top side of the magnetic conductive member 6. At this time, the magnetic conductive member 6 can conduct the magnetic circuit of the first magnetic circuit component 4, and the magnetic conductive member 6 can support the first magnetic circuit component 4, which is convenient for reducing the support structure of the first magnetic circuit component 4, which is conducive to the simplification of the structure of the speaker 30, and can reduce the size of the speaker 30 in the thickness direction, which is conducive to the thin design of the speaker 30.

[0095] The first magnetic circuit component 4 may include a first central magnet 41 , a first side magnet 42 , a first central magnetic conductive member 43 and a first side magnetic conductive member 44 . The first magnetic circuit component 4 has a magnetic gap 45 .

[0096] The first central magnet 41 and the first side magnet 42 may both be substantially rectangular plate structures. The first side magnet 42 is located around the first central magnet 41 , and the first central magnet 41 and the first side magnet 42 may form a magnetic gap 45 of the first magnetic circuit assembly 4 .

[0097] Wherein, the first side magnet 42 surrounds the first center magnet 41 and is spaced apart from the first center magnet 41. For example, the first side magnet 42 may include three magnets, which are arranged on the circumference of the first center magnet 41 and are spaced apart from the first center magnet 41. Wherein, the first side magnet 42 may be fixedly connected to the shell 1, for example, the three magnets of the first side magnet 42 are respectively fixed to the positions close to the three sides of the magnetic conductive member 6, so that the assembly structure is more stable and accurate. In other embodiments, the first side magnet 42 may include four magnets, which are ring-shaped and arranged on the circumference of the first center magnet 41. In other embodiments, the first side magnet 42 may also be a ring magnet, which is not strictly limited in the embodiment of the present application. Wherein, the gap between the first side magnet 42 and the first center magnet 41 forms a part of the magnetic gap 45.

[0098] The first central magnetic conductive member 43 is fixed to the side of the first central magnet 41 facing the first diaphragm 21. The first central magnetic conductive member 43 is opposite to and spaced from the vibration part 211 of the first diaphragm 21. The first central magnetic conductive member 43 can be made of magnetic conductive material.

[0099] The first side magnetic conductive member 44 is fixed to the side of the first side magnet 42 facing the first diaphragm 21 and is spaced apart from the first central magnetic conductive member 43. The first side magnetic conductive member 44 is opposite to the folding ring portion 212 of the first diaphragm 21 and is spaced apart from each other.

[0100] The first side magnetic conductive member 44 may include three magnetic conductive parts 441 and a connecting frame 442, two of the three magnetic conductive parts 441 are arranged opposite to each other, and the other magnetic conductive part 441 is located between the two magnetic conductive parts 441 arranged opposite to each other, and the connecting frame 442 is fixedly connected to the three magnetic conductive parts 441. The three magnetic conductive parts 441 are respectively located on the top sides of the three magnets of the first side magnet 42. The gap between the first side magnetic conductive member 44 and the first center magnetic conductive member 43 forms another part of the magnetic gap 45. The first side magnetic conductive member 44 may be made of magnetic conductive material.

[0101] The first side magnetic conductive member 44 may also be fixedly connected to the housing 1. For example, the first side magnetic conductive member 44 may be fixedly connected to the inner side wall of the top housing 11.

[0102] Exemplarily, the first voice coil 22 may be substantially in the form of a hollow rectangular structure; the first voice coil 22 may be formed by winding a conductive wire.

[0103] One end of the first voice coil 22 is fixedly connected to the first diaphragm 21, and the other end of the first voice coil 22 is located in the magnetic gap 45. The first voice coil 22 can be connected to the vibration part 211 of the first diaphragm 21. For example, one end of the first voice coil 22 can be fixed on the side of the folding ring part 212 away from the vibration part 211; when the other end of the first voice coil 22 is located in the magnetic gap 45, the other end of the first voice coil 22 can surround the outer periphery of the first central magnet 41 and the first central magnetic conductive member 43, and the first side magnet 42 is located on the outer periphery of the first voice coil 22; in addition, there are gaps between the first voice coil 22 and the first central magnet 41 and the first side magnet 42.

[0104] Exemplarily, the first vibration assembly 2 may further include a first centering support 23. The first voice coil 22 may be fixedly connected to the first diaphragm 21 via the first centering support 23 to better meet the position arrangement requirements of the first voice coil 22.

[0105] The first centering support 23 may be substantially frame-shaped, and may be substantially plate-shaped, so that the first voice coil 22 is evenly connected to the first diaphragm 21 .

[0106] The centering support piece may be deformable. The main deformable direction of the centering support piece is mainly the thickness direction of the centering support piece, that is, it may be parallel to the thickness direction Z, and the deformability in the plane of the length direction X and the width direction Y may be as small as possible.

[0107] For example, the first centering support piece 23 may include an outer ring portion 231, a deformation portion 232 and an inner ring portion 233, wherein the deformation portion 232 is fixedly connected to the outer ring portion 231 and the inner ring portion 233. The outer ring portion 231 may be a rectangular ring structure, and the outer ring portion 231 is used to be fixedly connected to the top surface of the top shell 11, and the outer ring portion 231 is also used to be fixedly connected to the fixing portion 213 of the first diaphragm 21. The shape of the inner ring portion 233 may correspond to the shape of the first voice coil 22, so as to fix one end of the first voice coil 22 to the inner ring portion 233. One side of the inner ring portion 233 is fixedly connected to one end of the first voice coil 22, and the other side of the inner ring portion 233 is used to be fixedly connected to the vibration portion 211 of the first diaphragm 21. One end of the deformation portion 232 is fixedly connected to the inner circumference of the outer ring portion 231, and the other end is fixedly connected to the outer circumference of the inner ring portion 233, and the deformation portion 232 is correspondingly located below the folding ring portion 212 of the first diaphragm 21. The deformation portion 232 can be elastically deformed, and the main deformation direction of the deformation portion 232 is parallel to the thickness direction Z. When the first voice coil 22 drives the vibration portion 211 of the first diaphragm 21 to vibrate, the inner ring portion 233 vibrates following the vibration portion 211, and the outer ring portion 231 is fixed relative to the housing 1. The outer ring portion 231 and the inner ring portion 233 generate relative motion, and the deformation portion 232 causes the voice coil to vibrate mainly in a direction perpendicular to the vibration portion 211, and reduces the motion of the first voice coil 22 in a direction parallel to the vibration portion 211.

[0108] The first centering support 23 may also be electrically connected to the first voice coil 22. In this case, the first centering support 23 may be conductive, thereby energizing the first voice coil 22. In other embodiments, the first centering support 23 may not be electrically connected to the first voice coil 22.

[0109] In this example, when the first voice coil 22 is energized, the first voice coil 22 generates a force in the magnetic field of the first magnetic circuit assembly 4, thereby pushing the first diaphragm 21 to vibrate, and the first diaphragm 21 pushes the air to vibrate, so that the speaker 30 can make a sound. Among them, the first voice coil 22 can receive an alternating signal and generate an alternating force in the magnetic field. The direction in which the first voice coil 22 pushes the first diaphragm 21 to vibrate is along the axial direction of the first voice coil 22, and the axial direction of the first voice coil 22 is the same as the thickness direction Z of the speaker 30, and the vibration direction of the first diaphragm 21 is usually perpendicular to the first diaphragm 21 itself.

[0110] In some embodiments, the second vibration component 3 may be located on the other side of the magnetic conductive member 6, and the second magnetic circuit component 5 may be located on the same side of the magnetic conductive member 6 as the second vibration component 3. For example, the second vibration component 3 and the second magnetic circuit component 5 may both be located on the bottom side of the magnetic conductive member 6.

[0111] In some examples, the second vibration component 3 includes a second diaphragm 31 and a second voice coil 32. The second diaphragm 31 is fixed to the shell 1 and is located on the other side of the magnetic conductive component 6. The second magnetic circuit component 5 is fixed to the side of the magnetic conductive component 6 facing the second diaphragm 31. One end of the second voice coil 32 is fixedly connected to the second diaphragm 31, and the other end is located in the magnetic gap 55 of the second magnetic circuit component 5.

[0112] Exemplarily, the second diaphragm 31 is fixedly connected to the bottom shell 12. The second diaphragm 31 may be in a rectangular structure, and the second diaphragm 31 may be fixed to the annular surface at the bottom of the bottom shell 12.

[0113] Among them, the second diaphragm 31 may include a vibration part 311, a folding ring part 312 and a fixing part 313. The vibration part 311, the folding ring part 312 and the fixing part 313 are fixedly connected in sequence. The vibration part 311 may be a rectangular structure. The folding ring part 312 surrounds the outer peripheral side of the vibration part 311 and is connected to the vibration part 311; the folding ring part 312 may be deformable, for example, the folding ring part 312 may have an annular structure with an overall arc surface, and the annular structure of the arc surface is easy to deform and stretch, so that the vibration part 311 can be displaced relative to the fixing part 313. The folding ring part 312 may be protruded in a direction away from the bottom shell 12. The fixing part 313 surrounds the outer peripheral side of the folding ring part 312 and is connected to the folding ring part 312. The fixing part 313 may be an annular structure, so that it is easy to be fixed to the bottom side of the bottom shell 12. The folding ring portion 312 and the vibration portion 311 correspond to the hollowed-out position in the middle of the shell 1 , and the hollowed-out position is used to avoid the deformation movement of the folding ring portion 312 and the vibration movement of the vibration portion 311 .

[0114] Exemplarily, the second magnetic circuit component 5 can be fixed to the plate surface on the top side of the magnetic conductive member 6. At this time, the magnetic conductive member 6 can conduct the magnetic circuit of the second magnetic circuit component 5, and the magnetic conductive member 6 can support the second magnetic circuit component 5, which is convenient for reducing the support structure of the second magnetic circuit component 5, which is conducive to the simplification of the structure of the speaker 30, and can reduce the size of the speaker 30 in the thickness direction, which is conducive to the thin design of the speaker 30.

[0115] The second magnetic circuit component 5 may include a second central magnet 51 , a second side magnet 52 , a second central magnetic conductive member 53 and a second side magnetic conductive member 54 . The second magnetic circuit component 5 has a magnetic gap 55 .

[0116] The second central magnet 51 and the second side magnet 52 may both be approximately rectangular. The second side magnet 52 is located around the second central magnet 51 , and the second central magnet 51 and the second side magnet 52 form a magnetic gap 55 of the second magnetic circuit assembly 5 .

[0117] The second side magnet 52 surrounds the second center magnet 51 and is spaced apart from the second center magnet 51. For example, the second side magnet 52 may include two magnets, which are arranged on the circumference of the second center magnet 51 and are spaced apart from the second center magnet 51. The second side magnet 52 may be fixedly connected to the shell 1 to make the assembly structure more stable and accurate. In other embodiments, the second side magnet 52 may include four magnets, which are ring-shaped around the second center magnet 51. In other embodiments, the second side magnet 52 may also be a ring magnet, which is not strictly limited in the embodiments of the present application. The gap between the second side magnet 52 and the second center magnet 51 forms a part of the magnetic gap 55.

[0118] The second central magnetic conductive member 53 is fixed to the side of the second central magnet 51 facing the second diaphragm 31. The second central magnetic conductive member 53 is opposite to and spaced from the vibration part 311 of the second diaphragm 31. The second central magnetic conductive member 53 can be made of magnetic conductive material.

[0119] The second side magnetic conductive member 54 is fixed to the side of the second side magnet 52 facing the second diaphragm 31 and is spaced apart from the second center magnetic conductive member 53. The second side magnetic conductive member 54 is opposite to the folding ring portion 312 of the second diaphragm 31 and is spaced apart. The second side magnetic conductive member 54 may include two magnetic conductive portions, which are arranged opposite to each other. The two magnetic conductive portions correspond to the top sides of the two magnets of the second side magnet 52, respectively. The gap between the second side magnetic conductive member 54 and the second center magnetic conductive member 53 forms another part of the magnetic gap 55. The second side magnetic conductive member 54 may be made of magnetic conductive material. In other embodiments, the two magnetic conductive portions of the second side magnetic conductive member 54 may be fixedly connected to form an integrated structural member.

[0120] The second side magnetic conductive member 54 is also fixedly connected to the housing 1. For example, the second side magnetic conductive member 54 can be fixedly connected to the inner side wall of the bottom housing 12.

[0121] Exemplarily, the second voice coil 32 may be substantially in the form of a hollow rectangular structure; the second voice coil 32 may be formed by winding a conductive wire.

[0122] One end of the second voice coil 32 is fixedly connected to the second diaphragm 31, and the other end of the second voice coil 32 is located in the magnetic gap 55. The second voice coil 32 can be connected to the vibration part 311 of the second diaphragm 31. For example, one end of the second voice coil 32 can be fixed on the side of the folding ring part 312 away from the vibration part 311; when the other end of the second voice coil 32 is located in the magnetic gap 55, the other end of the second voice coil 32 can surround the outer periphery of the second center magnet 51 and the second center magnetic conductive member 53, and the second side magnet 52 is located on the outer periphery of the second voice coil 32; in addition, there are gaps between the second voice coil 32 and the second center magnet 51 and the second side magnet 52.

[0123] Exemplarily, the second vibration assembly 3 may further include a second centering support 33. The second voice coil 32 may be fixedly connected to the second diaphragm 31 via the second centering support 33 to better meet the position arrangement requirements of the second voice coil 32.

[0124] The second centering support 33 may be substantially frame-shaped, and may be substantially plate-shaped, so that the second voice coil 32 is evenly connected to the second diaphragm 31 .

[0125] The centering support piece may be deformable. The main deformable direction of the centering support piece is mainly the thickness direction of the centering support piece, that is, it may be parallel to the thickness direction Z, and the deformability in the plane of the length direction X and the width direction Y may be as small as possible.

[0126] For example, the second centering support 33 may include an outer ring portion 331, a deformation portion 332, and an inner ring portion 333, wherein the deformation portion 332 is fixedly connected to the outer ring portion 331 and the inner ring portion 333. The outer ring portion 331 may be a rectangular ring structure, and the outer ring portion 331 is used to be fixedly connected to the bottom surface of the bottom shell 12, and the outer ring portion 331 is also used to be fixedly connected to the fixing portion 313 of the second diaphragm 31. The shape of the inner ring portion 333 may correspond to the shape of the second voice coil 32, so that one end of the second voice coil 32 is fixedly connected to the inner ring portion 333. One side of the inner ring portion 333 is fixedly connected to one end of the second voice coil 32, and the other side of the inner ring portion 333 is used to be fixedly connected to the vibration portion 311 of the second diaphragm 31. One end of the deformation portion 332 is fixedly connected to the inner circumference of the outer ring portion 331, and the other end is fixedly connected to the outer circumference of the inner ring portion 333, and the deformation portion 332 is correspondingly located above the folding ring portion 312 of the second diaphragm 31. The deformation portion 332 can be elastically deformed, and the main deformation direction of the deformation portion 332 is parallel to the thickness direction Z. When the second voice coil 32 drives the vibration portion 311 of the second diaphragm 31 to vibrate, the inner ring portion 333 vibrates following the vibration portion 311, and the outer ring portion 331 is fixed relative to the housing 1. The outer ring portion 331 and the inner ring portion 333 generate relative motion, and the deformation portion 332 causes the voice coil to vibrate mainly in a direction perpendicular to the vibration portion 311, and reduces the motion of the second voice coil 32 in a direction parallel to the vibration portion 311.

[0127] The second centering support 33 may also be electrically connected to the second voice coil 32. In this case, the second centering support 33 may be conductive, thereby energizing the second voice coil 32. In some other embodiments, the second centering support 33 may not be electrically connected to the second voice coil 32.

[0128] In this example, when the second voice coil 32 is energized, the second voice coil 32 generates a force in the magnetic field of the second magnetic circuit assembly 5, thereby pushing the second diaphragm 31 to vibrate, and the second diaphragm 31 pushes the air to vibrate, so that the speaker 30 can make a sound. Among them, the second voice coil 32 can receive an alternating signal and generate an alternating force in the magnetic field. The direction in which the second voice coil 32 pushes the second diaphragm 31 to vibrate is along the axial direction of the second voice coil 32, and the axial direction of the second voice coil 32 is the same as the thickness direction Z of the speaker 30, and the vibration direction of the second diaphragm 31 is usually perpendicular to the second diaphragm 31 itself.

[0129] In this embodiment, the speaker 30 includes two sets of vibration components, which are located on two sides of the magnetic conductive member 6, so that the two sets of vibration components can make sounds independently, the first voice coil 22 can drive the first diaphragm 21 to vibrate, and the second voice coil 32 can drive the second diaphragm 31 to vibrate. The cooperation of the first diaphragm 21 and the second diaphragm 31 can make the speaker 30 have better low-frequency loudness, thereby improving the sound quality of the speaker 30. In addition, by providing the magnetic conductive member 6, the magnetic conductive member 6 can not only conduct the magnetic circuit in the first magnetic circuit component 4 and the second magnetic circuit component 5, which is conducive to simplifying the magnetic circuit design, but also support the first magnetic circuit component 4 and the second magnetic circuit component 5, thereby simplifying the design of the support structure of the speaker 30, which is conducive to the thin design of the speaker 30, thereby improving the adaptability of the speaker 30 to the application environment.

[0130] like Figure 4 As shown, in some embodiments, the magnetic conductive member 6 includes a first magnetic conductive portion 61, a connecting portion 62 and a second magnetic conductive portion 63. The connecting portion 62 is fixedly connected to the first magnetic conductive portion 61 and the second magnetic conductive portion 63, and the first magnetic conductive portion 61 and the second magnetic conductive portion 63 are arranged in the length direction X of the speaker 30. The length direction of the magnetic conductive member 6 is parallel to the length direction X of the speaker 30, and the first magnetic circuit component 4 and the second magnetic circuit component 5 can also be arranged along the length direction X.

[0131] The first magnetic circuit component 4 is fixed to the first magnetic conductive part 61, and the second magnetic circuit component 5 is fixed to the second magnetic conductive part 63. At this time, the first magnetic conductive part 61 is used to conduct the magnetic circuit of the first magnetic circuit component 4, and the first magnetic conductive part 61 also serves as a support structure for the first magnetic circuit component 4. The second magnetic conductive part 63 is used to conduct the second magnetic circuit component 5, and the second magnetic conductive part 63 also serves as a support structure for the second magnetic circuit component 5.

[0132] The connecting portion 62 may be located between the first magnetic circuit component 4 and the second magnetic circuit component 5. Since the first magnetic conductive portion 61 and the second magnetic conductive portion 63 are staggered, the connecting portion 62 extends along the thickness direction Z. In some other embodiments, the connecting portion 62 may also be tilted relative to the thickness direction Z.

[0133] The first magnetic conductive portion 61 is parallel to the second magnetic conductive portion 63, and the first magnetic conductive portion 61 and the second magnetic conductive portion 63 are staggered, so that the distance between the first magnetic conductive portion 61 and the first diaphragm 21 is greater than the distance between the second magnetic conductive portion 63 and the first diaphragm 21. At this time, the first magnetic circuit component 4 and the second magnetic circuit component 5 overlap in the thickness direction Z, and the first magnetic circuit component 4 and the second magnetic circuit component 5 are arranged side by side. The first magnetic circuit component 4 and the second magnetic circuit component 5 are equivalent to reusing the space in the thickness direction Z, which is conducive to the thin design of the speaker 30.

[0134] Exemplarily, the overlapping thickness of the first magnetic circuit component 4 and the second magnetic circuit component 5 can be greater than 80% of the thickness of the second magnetic circuit component 5. At this time, the first magnetic circuit component 4 and the second magnetic circuit component 5 can largely utilize the space in the thickness direction Z, and can greatly reduce the thickness of the speaker 30.

[0135] For example, the thickness of the first magnetic circuit component 4 and the thickness of the second magnetic circuit component 5 can be the same. The top surface of the first central magnetic conductive member 43 can be flush or nearly flush with the top surface of the second magnetic conductive portion 63, and the bottom surface of the second central magnetic conductive member 53 can be flush or nearly flush with the bottom surface of the first magnetic conductive portion 61. At this time, in the thickness bottom direction Z, only the thickness of the first magnetic circuit component 4 or the second magnetic circuit component 5 is used to realize the setting of the first magnetic circuit component 4 and the second magnetic circuit component 5, which has a high utilization rate of the thickness space, reduces the thickness of the speaker 30, and improves the integration of the speaker 30.

[0136] Please continue reading Figure 3 and Figure 4 In some embodiments, a first voice coil 22 and a first magnetic circuit component 4 are arranged in a group, and a second voice coil 32 and a second magnetic circuit component 5 are arranged in a group. A group of second voice coils 32 and second magnetic circuit components 5 and at least one group of first voice coils 22 and first magnetic circuit components 4 are arranged alternately along a first direction, and the first direction is parallel to the length direction of the speaker 30, that is, the first direction is parallel to the length direction X.

[0137] At this time, the first magnetic circuit assembly 4 and the first voice coil 22 in the same group can work together, and the first magnetic circuit assembly 4 is used to drive the first voice coil 22 to vibrate, so that the first voice coil 22 drives the first diaphragm 21 to vibrate. Of course, the second magnetic circuit assembly 5 and the second voice coil 32 in the same group can work together, and the second magnetic circuit assembly 5 is used to drive the second voice coil 32 to vibrate, so that the second voice coil 32 drives the second diaphragm 31 to vibrate.

[0138] In this embodiment, when a group of second voice coils 32 and second magnetic circuit components 5 are alternately arranged along the first direction with at least one group of first voice coils 22 and first magnetic circuit components 4, there may be multiple groups of first voice coils 22 and first magnetic circuit components 4, and multiple groups of first voice coils 22 and first magnetic circuit components 4 can drive the first diaphragm 21 at the same time, so that the driving force on the first diaphragm 21 is more balanced, which is conducive to preventing the first diaphragm 21 from being biased during vibration, and is conducive to reasonably arranging the first voice coils 22 and the second voice coils 32, so that the first diaphragm 21 and the second diaphragm 31 are both balanced in force during vibration. In addition, multiple groups of first voice coils 22 and first magnetic circuit components 4 can provide greater driving force for the first diaphragm 21, which is conducive to improving the sound quality of the speaker 30. In addition, the first direction is parallel to the length direction of the speaker 30, which is conducive to designing the speaker 30 as a slender structure, which can improve the adaptability of the speaker 30 to application scenarios.

[0139] In some examples, there are two groups of first voice coils 22 and first magnetic circuit components 4, and there is one group of second voice coils 32 and second magnetic circuit components 5. In this case, one group of second voice coils 32 and second magnetic circuit components 5 is located between two groups of first voice coils 22 and first magnetic circuit components 4, and the two groups of first voice coils 22 and first magnetic circuit components 4 are symmetrically arranged so that the force on the first diaphragm 21 is more balanced when vibrating. The second voice coil 32 can be located in the middle of the second diaphragm 31 so that the force on the second diaphragm 31 is more balanced.

[0140] The sum of the cross-sectional areas of the two first voice coils 22 in a direction perpendicular to the axis of the first voice coil 22 is substantially consistent with the cross-sectional area of ​​the second voice coil 32 in a direction perpendicular to the axis of the second voice coil 32, thereby facilitating the first diaphragm 21 and the second diaphragm 31 to vibrate with substantially consistent amplitudes.

[0141] The first centering support plate 23 may have two inner ring portions 333 , and the two inner ring portions 333 are fixedly connected to the two first voice coils 22 respectively.

[0142] At this time, the magnetic conductive member 6 may have two first magnetic conductive portions 61, and the second magnetic conductive portion 63 is located between the two first magnetic conductive portions 61. The two first magnetic conductive portions 61 may be arranged flush, and the magnetic conductive member 6 as a whole forms a "convex" shape. The two first magnetic conductive portions 61 may be used to correspondingly install two first magnetic circuit components 4.

[0143] It is understandable that when there are more groups of first voice coils 22 and first magnetic circuit components 4, more first magnetic conductive parts 61 can be provided correspondingly. When there are more groups of second voice coils 32 and second magnetic circuit components 5, more second magnetic conductive parts 63 can be provided correspondingly.

[0144] See also Figure 5 , Figure 5 yes Figure 2 The loudspeaker 30 is shown in a cross-sectional view taken along line BB.

[0145] In some embodiments, the length direction of the first voice coil 22 and the second voice coil 32 is parallel to the arrangement direction of the first voice coil 22 and the second voice coil 32 (i.e., the X direction). In this case, the size of the width direction Y of the speaker 30 can be further reduced, which is conducive to improving the rationality of the overall structure of the speaker 30 when the aspect ratio is large. Among them, the width and thickness of the first voice coil 22 and the second voice coil 32 can be the same, and the gaps between the first voice coil 22 and the second voice coil 32 and the side wall of the housing 1 can be the same, which can make the structure of the speaker 30 more regular and is conducive to the miniaturization of the speaker 30.

[0146] In some examples, the ratio of the length to the width of the speaker 30 may be greater than or equal to 4. In this case, the speaker 30 can be located in the electronic device 100 (see Figure 1) has a smaller width. When the installation space of the speaker 30 has a larger aspect ratio, the speaker 30 has less impact on the appearance of the electronic device 100 and causes less damage to the structure of the electronic device 100, which is conducive to simplifying the structural design of the electronic device 100.

[0147] See also Figure 6 , Figure 6 yes Figure 3 The speaker 30 is shown in a cross-sectional view from another perspective.

[0148] In some embodiments, a first magnetic gap 7 is formed between the first magnetic circuit component 4 and the second magnetic circuit component 5 , wherein a portion of the structure of the first voice coil 22 and a portion of the structure of the second voice coil 32 are located in the first magnetic gap 7 .

[0149] At this time, since the first magnetic circuit component 4 and the second magnetic circuit component 5 can be arranged side by side, the first magnetic gap 7 can be formed between the adjacent magnets between the first magnetic circuit component 4 and the second magnetic circuit component 5. When the partial structure of the first voice coil 22 and the partial structure of the second voice coil 32 are located in the first magnetic gap 7, the first voice coil 22 and the second voice coil 32 can be driven in the first magnetic gap 7 to vibrate. The first magnetic circuit component 4 and the second magnetic circuit component 5 cooperate with each other, the first voice coil 22 is equivalent to being driven by the magnetic field formed by the first magnetic circuit component 4 and the second magnetic circuit component 5, and the second voice coil 32 is equivalent to being driven by the magnetic field formed by the first magnetic circuit component 4 and the second magnetic circuit component 5. There are reused magnets in both the first magnetic circuit component 4 and the second magnetic circuit component 5. Therefore, the setting of the first magnetic gap 7 can reduce the number of magnets in the first magnetic circuit component 4 and the second magnetic circuit component 5, which is conducive to reducing the size of the speaker 30 and simplifying the overall structure of the speaker 30.

[0150] Exemplarily, the first center magnet 41 can form a first magnetic gap 7 with the second center magnet 51. At this time, the first center magnet 41 and the second center magnet 51 are arranged adjacent to each other, and no additional magnet is required between the first center magnet 41 and the second center magnet 51. Since the first magnetic circuit component 4 and the first magnetic circuit component 4 are arranged along the length direction X, the length dimension of the first magnetic circuit component 4 and the first magnetic circuit component 4 can be reduced, thereby reducing the length dimension of the speaker 30.

[0151] Since the first voice coil 22 is disposed around the first central magnet 41, part of the structure of the first voice coil 22 is located in the magnetic gap 45 of the first magnetic circuit assembly 4, and part of the structure of the first voice coil 22 is located in the first magnetic gap 7. Since the second voice coil 32 is disposed around the second central magnet 51, part of the structure of the second voice coil 32 is located in the magnetic gap 55 of the second magnetic circuit assembly 5, and part of the structure of the second voice coil 32 is located in the first magnetic gap 7. Part of the structure of both the first voice coil 22 and the second voice coil 32 is located in the first magnetic gap 7, and the distance between the first voice coil 22 and the second voice coil 32 can be small, so that the cross-sectional area of ​​the first voice coil 22 and the second voice coil 32 can be larger, so that the contact area between the first voice coil 22 and the first diaphragm 21 is large, and the first voice coil 22 drives the first diaphragm 21 more stably, and the contact area between the second voice coil 32 and the second diaphragm 31 is large, and the second voice coil 32 drives the second diaphragm 31 more stably.

[0152] For example, the minimum distance between the first center magnet 41 and the second center magnet 51 is less than or equal to 2 mm. At this time, the minimum distance between the first center magnet 41 and the second center magnet 51 is also the minimum distance of the first magnetic gap 7. By setting a smaller distance, the distance between the first center magnet 41 and the second center magnet 51 is reduced, thereby improving the driving efficiency of the first magnetic gap 7 on the first voice coil 22 and the second voice coil 32.

[0153] In addition, the connecting portion 62 may be located in the first magnetic gap 7, and the connecting portion 62 may be located between the first voice coil 22 and the second voice coil 32. At this time, in addition to connecting the first magnetic conductive portion 61 and the second magnetic conductive portion 63, the connecting portion 62 may also isolate the first voice coil 22 and the second voice coil 32, thereby reducing the possibility of collision between the first voice coil 22 and the second voice coil 32 when the speaker 30 is working or subjected to external force impact, thereby improving the reliability of the speaker 30.

[0154] It can be understood that the first central magnet 41 and the second central magnet 51 have the same magnetic poles facing in opposite directions, so that a magnetic circuit is formed between the first central magnet 41 and the second central magnet 51 .

[0155] Exemplarily, when there are two groups of first magnetic circuit components 4, the first central magnets 41 of the two groups of first magnetic circuit components 4 may have their N poles facing the first diaphragm 21 and their S poles facing the second diaphragm 31, and the second central magnets 51 of the second magnetic circuit components 5 may have their N poles facing the second diaphragm 31 and their S poles facing the first diaphragm 21. The first side magnets 42 of the two groups of first magnetic circuit components 4 may have their N poles facing the second diaphragm 31 and their S poles facing the first diaphragm 21, and the second side magnets 52 of the second magnetic circuit components 5 may have their N poles facing the first diaphragm 21 and their S poles facing the second diaphragm 31.

[0156] It is understandable that when the first magnetic circuit component 4 has a first central magnetic conductive member 43 and the second magnetic circuit component 5 has a second central magnetic conductive member 53 , the first central magnetic conductive member 43 and the second central magnetic conductive member 53 can also be used to form the first magnetic gap 7 .

[0157] See also Figure 7 , Figure 7 yes Figure 2 A schematic structural diagram of the magnetic conductive component 6 of the loudspeaker 30 is shown.

[0158] In some embodiments, the magnetic conductive member 6 may be an integrated structural member. In some examples, the magnetic conductive member 6 may be integrally formed from a plate-like member, for example, the magnetic conductive member 6 may be formed by a process such as bending or stamping. In this case, the manufacture of the magnetic conductive member 6 is relatively simple, and the structural strength of the magnetic conductive member 6 is high, and the support performance of the magnetic conductive member 6 is good.

[0159] The thickness b of the first magnetic conductive part 61, the thickness c of the second magnetic conductive part 63, and the thickness a of the connecting part 62 of the magnetic conductive member 6 may be different. Exemplarily, the thickness a of the connecting part 62 is less than the thickness b of the first magnetic conductive part 61 and / or the thickness c of the second magnetic conductive part 63, and the thickness b of the first magnetic conductive part 61 and the thickness c of the second magnetic conductive part 63 may be the same. For example, the thickness a of the connecting part 62 may be less than or equal to 0.35 mm, such as the thickness a of the connecting part 62 may be 0.3 mm, and the thickness b of the first magnetic conductive part 61 and / or the thickness c of the second magnetic conductive part 63 may be greater than or equal to 0.35 mm, such as the thickness b of the first magnetic conductive part 61 and / or the thickness c of the second magnetic conductive part 63 may be 0.4 mm.

[0160] In this embodiment, when the connecting portion 62 is located at the first magnetic gap 7 (see Figure 6 ), by setting the thickness a of the connecting portion 62, the thickness b of the first magnetic conductive portion 61 and the thickness c of the second magnetic conductive portion 63 in a reasonable manner, the influence on the strength of the magnetic conductive member 6 is reduced, which is beneficial to reducing the width of the first magnetic gap 7, thereby facilitating the improvement of the loudspeaker 30 (see Figure 6 ) sound quality.

[0161] In some other embodiments, the thickness b of the first magnetic conductive portion 61 of the magnetic conductive member 6 , the thickness c of the second magnetic conductive portion 63 , and the thickness a of the connecting portion 62 may be the same.

[0162] Please refer to Figure 6 , Figure 8 and Fig. 9 , Figure 8 yes Figure 6 The structure diagram of the magnetic conductive member 6 in other embodiments is shown in FIG. Fig. 9 yes Figure 6 The magnetic conductive member 6 is shown in schematic structural diagrams of other embodiments.

[0163] In some embodiments, the connection portion 62 of the magnetic conductive member 6 is provided with a connecting hole 64 , and the connecting hole 64 connects the spaces on both sides of the connection portion 62 .

[0164] The connecting holes 64 may be provided corresponding to the first central magnet 41 and the second central magnet 51 , so that there is no magnetic conductive structure or less magnetic conductive structure between the first central magnet 41 and the second central magnet 51 to block the magnetic path.

[0165] In this embodiment, the connecting portion 62 is located in the first magnetic gap 7, and the first magnetic circuit component 4 and the second magnetic circuit component 5 are located on both sides of the connecting portion 62. The connecting portion 62 and the first magnetic conductive portion 61 and the second magnetic conductive portion 63 can all be made of magnetic conductive materials. At this time, the connecting portion 62 may block the magnetic circuit in the first magnetic gap 7. By providing a connecting hole 64 in the connecting portion 62, a magnetic circuit is directly formed between the first central magnet 41 and the second central magnet 51, reducing the shielding of the connecting portion 62, thereby improving the magnetic strength of the first magnetic gap 7, which is beneficial to improving the sound quality of the speaker 30.

[0166] In one connection portion 62, the number of the connecting hole 64 may be one (eg Figure 8 ), so that the opening of the connecting hole 64 is easier. In some other embodiments, the number of the connecting hole 64 is multiple (such as Fig. 9 ), in the arrangement direction of the first voice coil 22 and the second voice coil 32, the plurality of communication holes 64 at least cover half of the area of ​​the second voice coil 32. The plurality of communication holes 64 can be arranged in an array, and in this case, the communication holes 64 cause less structural damage to the connecting portion 62.

[0167] In some examples, the cross-sectional area of ​​the communication hole 64 in the direction X perpendicular to the length of the speaker 30 is greater than half of the cross-sectional area of ​​the first voice coil 22 or the second voice coil 32 in the direction X perpendicular to the length of the speaker 30 (not shown). Part of the structure of the first voice coil 22 or the second voice coil 32 is located in the first magnetic gap 7. By setting the area of ​​the communication hole 64, the connection portion 62 blocks the magnetic path between the first center magnet 41 and the second center magnet 51 as little as possible, so that when the first voice coil 22 or the second voice coil 32 vibrates, it is subjected to a relatively balanced force in the first magnetic gap 7.

[0168] like Figure 8 As shown, the communication hole 64 can be opened in the middle area of ​​the connecting portion 62 to correspond to the first central magnet 41 and the second central magnet 51. In this case, less material is removed from the connecting portion 62, and the strength of the connecting portion 62 is less affected.

[0169] like Fig. 9As shown, the number of the connecting holes 64 can be multiple. For example, the number of the connecting holes 64 can be two, and the two connecting holes 64 are arranged side by side. A support rib can be formed between the two connecting holes 64, so as to reduce the influence of the connecting holes 64 on the strength of the connecting portion 62. In the connecting portion 62, the structure on both sides of the connecting hole 64 and the width of the support rib in the width direction Y are greater than or equal to 0.4 mm, so as to facilitate processing and ensure the strength of the connecting portion 62.

[0170] Please refer to Figure 6 and Fig.10 , Fig.10 yes Figure 6 The structure diagram of the magnetic conductive member 6 in some other embodiments is shown. Fig.10 The magnetic conductive member 6 shown may include Fig. 9 Most of the technical features of the magnetic conductive component 6 are shown. The following mainly explains the differences between the two, and most of the technical contents that are the same between the two are not repeated.

[0171] In some embodiments, Fig.10 The magnetic conductive member 6 is shown Fig. 9 The difference of the magnetic conductive member 6 shown is that the magnetic conductive member 6 may further include a reinforcing portion 65 .

[0172] Exemplarily, the reinforcing portion 65 can fill the connecting hole 64. The reinforcing portion 65 can be made of insulating material, and the reinforcing portion 65 does not have magnetic conductivity, and will not block the magnetic circuit between the first central magnet 41 and the second central magnet 51, thereby not affecting the sound quality of the speaker 30. In addition, the reinforcing portion 65 improves the strength of the magnetic conductive member 6 at the connecting portion 62. Since the reinforcing portion 65 fills the connecting hole 64, the spaces on both sides of the connecting portion 62 and the reinforcing portion 65 are isolated, and the gases will not be connected to each other, which is beneficial to improving the sound quality of the speaker 30.

[0173] In some other embodiments, the reinforcing portion 65 may also be a thin film layer, so that the reinforcing portion 65 can cover the outer surface of the connecting portion 62. Among them, the reinforcing portion 65 can be made of a metal material or a polymer material with relatively high strength, and the reinforcing portion 65 can be electroplated or coated on the outer surface of the connecting portion 62. By providing the reinforcing portion 65, the overall structural strength of the magnetic conductive component 6 can be improved, so that the bearing capacity of the magnetic conductive component 6 is stronger and the support is more stable. Alternatively, the reinforcing portion 65 can also cover the outer surfaces of the first magnetic conductive portion 61 and the second magnetic conductive portion 63, thereby improving the strength of the overall or most structures of the magnetic conductive component 6.

[0174] Please refer to Figure 1 , Figure 3 and Fig.11 , Fig.11 yes Figure 3 The illustrated schematic diagram shows the loudspeaker 30 achieving far-field noise cancellation.

[0175] In some embodiments, the vibration directions of the first diaphragm 21 and the second diaphragm 31 are parallel, and the first diaphragm 21 and the second diaphragm 31 are used to form an acoustic dipole or an acoustic monopole. The first diaphragm 21 and the second diaphragm 31 can be arranged in parallel, and the areas of the first diaphragm 21 and the second diaphragm 31 can be the same.

[0176] The first diaphragm 21 may be disposed toward the top side of the temple 102 , the second diaphragm 31 may be disposed toward the bottom side of the temple 102 , and sound outlet holes may be provided on the top and bottom sides of the temple 102 .

[0177] For example, in the acoustic dipole mode, the vibration frequency and amplitude of the first diaphragm 21 and the second diaphragm 31 are the same, and the vibration direction is the same, so the sound waves emitted by the first diaphragm 21 and the second diaphragm 31 are equal in size and opposite in phase (i.e., the phase difference is 180°). In other words, the speaker 30 is a dipole speaker at this time, and a dipole sound field can be formed.

[0178] When the speaker 30 emits sound, two sounds with opposite phases are emitted from the first diaphragm 21 and the second diaphragm 31 respectively and transmitted to the outside of the speaker 30. Specifically, the sound emitted from the first diaphragm 21 is emitted from the top of the temple 102, and the sound emitted from the second diaphragm 31 is emitted from the bottom of the temple 102.

[0179] like Fig.11 , with an "8"-shaped directivity characteristic around the first diaphragm 21 and the second diaphragm 31. According to the principle of acoustic dipole, the human ear is placed in the effective listening area, and the first diaphragm 21 and the second diaphragm 31 are ensured to have a low loudness to meet the hearing needs of the wearer. When the sound is transmitted to a distant place, the two equal-amplitude and anti-phase sound waves will cancel each other out in the far field, forming a mute area, achieving far-field mute, and effectively improving the far-field privacy of the electronic device 100.

[0180] Exemplarily, in the acoustic monopole mode, the first diaphragm 21 and the second diaphragm 31 have the same vibration frequency and amplitude, and opposite vibration directions, so the sound waves emitted by the first diaphragm 21 and the second diaphragm 31 are equal in size and have the same phase. In other words, the speaker 30 is a monopole speaker at this time, which can form a monopole sound field. At this time, the speaker 30 can have a greater compression amount on the air, thereby providing a greater loudness, so that the wearer can obtain a better in-ear loudness experience, and improve the user's experience.

[0181] See also Fig.12 , Fig.12 yes Figure 1 The illustrated schematic diagram is a schematic diagram of the internal structure of the speaker 30 of the electronic device 100 in some other embodiments. Fig.12 The speaker 30 shown may include Figure 2Most of the technical features of the speaker 30 are shown. The following mainly explains the differences between the two, and most of the technical contents that are the same between the two are not repeated.

[0182] In some embodiments, Fig.12 The loudspeaker 30 is shown with Figure 2 The main difference of the loudspeaker 30 shown is the difference in the number of groups of the first voice coil 22 and the first magnetic circuit assembly 4 , and the number of groups of the second voice coil 32 and the second magnetic circuit assembly 5 .

[0183] Exemplarily, the first voice coil 22 and the first magnetic circuit component 4 may have three groups, and the second voice coil 32 and the second magnetic circuit component 5 may have two groups. Among them, there are three first voice coils 22, and there are two second voice coils 32, and the three first voice coils 22 and the two second voice coils 32 are alternately arranged, the three first voice coils 22 jointly drive the first diaphragm 21, and the two second voice coils 32 jointly drive the first diaphragm 21. Among them, there are three groups of first magnetic circuit components 4, and there are two groups of second magnetic circuit components 5, and the three groups of first magnetic circuit components 4 and the two second magnetic circuit components 5 are alternately arranged. Among them, the bending of the magnetic conductive part 6 can be adaptively arranged corresponding to the magnetic circuit component. For the specific arrangement of the shell 1, the first vibration component 2, the second vibration component 3, the first magnetic circuit component 4, the second magnetic circuit component 5 and the magnetic conductive part 6, please refer to Figures 2 to 11 The relevant schemes in the embodiments are not described in detail in this embodiment.

[0184] In this embodiment, the number of groups of first voice coils 22 and first magnetic circuit components 4, and the number of groups of second voice coils 32 and second magnetic circuit components 5 are relatively large. Multiple first voice coils 22 drive the first diaphragm 21, and have sufficient driving force and driving stability for the first diaphragm 21. Multiple second voice coils 32 drive the second diaphragm 31, and have sufficient driving force and driving stability for the second diaphragm 31, so that the speaker 30 has higher sound quality. At this time, the length-to-width ratio of the speaker 30 is larger, which is conducive to further reducing the width of the speaker 30, so that the speaker 30 can adapt to different application scenarios.

[0185] The above description uses the electronic device being AR glasses as an example for exemplary explanation, and the following description uses the electronic device being a mobile phone as an example for exemplary explanation.

[0186] See also Fig.13 , Fig.13 It is a schematic diagram of the structure of another electronic device provided in an embodiment of the present application.

[0187] Exemplarily, the electronic device 200 may include a housing 50, a display screen 60, and a speaker 30. The housing 50 is used to protect the internal electronic components of the electronic device 200, and the housing 50 serves as the body of the electronic device 200. The housing 50 may include a frame 501 and a back cover 502, wherein the frame 501 is connected to the back cover 502 and is arranged around the back cover 502. Exemplarily, the display screen 60 may be fixed to the frame 501. The display screen 60 is arranged opposite to the back cover 502, and the display screen 60 may enclose the internal space of the electronic device 200 together with the frame 501 and the back cover 502. The display screen 60 may be a flexible display screen 60 or a rigid display screen 60. The display screen 60 may be an organic light-emitting diode (OLED) display screen, a mini organic light-emitting diode (Mini organic light-emitting diode) display screen, a micro organic light-emitting diode (Micro organic light-emitting diode) display screen, a quantum dot light emitting diode (Quantum dot light emitting diodes, QLED) display screen, a liquid crystal display (Liquid crystal display, LCD), etc.

[0188] The frame 501 may be provided with a sound outlet 503. The number of the sound outlet 503 may be one or more. Fig.13 The number of the sound outlet holes 503 shown in the figure is multiple. In other embodiments, the sound outlet holes 503 can also be set on the back cover 502, the display screen 60, the connection between the frame 501 and the display screen 60, or the connection between the frame 501 and the back cover 502.

[0189] Exemplarily, the speaker 30 may be installed in the housing 50 and located inside the electronic device 200. Fig.13 The speaker 30 is indicated by a dotted line. The speaker 30 can play sound to the outside of the electronic device 200 through the sound outlet 503.

[0190] The specific structure of the speaker 30 can be found in Figures 1 to 12 The relevant schemes in the embodiments are not described in detail in this embodiment.

[0191] It should be noted that Fig.13 Some components of the electronic device 200 are shown schematically only, and the actual shapes and sizes of these components are not limited to the actual shapes and sizes of the electronic device 200. Fig.13 It should be understood that when the electronic device 200 is in other forms, the electronic device 200 may not include the display screen 60 , or the electronic device 200 may include a plurality of display screens 60 .

[0192] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of the present application. In other words, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0193] It should be noted that all the above drawings are illustrative illustrations of the present application and do not represent the actual size of the product. Moreover, the size ratio relationship between the components in the drawings is not intended to limit the actual product of the present application.

[0194] The above are only some embodiments and implementation methods of the present application, and the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the technical scope disclosed in the present application can easily think of changes or substitutions, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A loudspeaker (30), characterized in that: It comprises a shell (1), a first vibration component (2), a second vibration component (3), a first magnetic circuit component (4), a second magnetic circuit component (5) and a magnetic conductive component (6), wherein the magnetic conductive component (6) is fixed to the inner side of the shell (1); The first vibration component (2) comprises a first diaphragm (21) and a first voice coil (22); the first diaphragm (21) is fixed to the housing (1) and is located on one side of the magnetic conductive component (6); the first magnetic circuit component (4) is fixed to the side of the magnetic conductive component (6) facing the first diaphragm (21); one end of the first voice coil (22) is fixedly connected to the first diaphragm (21), and the other end is located in a magnetic gap (45) of the first magnetic circuit component (4); The second vibration component (3) comprises a second diaphragm (31) and a second voice coil (32); the second diaphragm (31) is fixed to the housing (1) and is located on the other side of the magnetic conductive component (6); the second magnetic circuit component (5) is fixed to the side of the magnetic conductive component (6) facing the second diaphragm (31); one end of the second voice coil (32) is fixedly connected to the second diaphragm (31), and the other end is located in the magnetic gap (55) of the second magnetic circuit component (5).

2. The loudspeaker (30) according to claim 1, characterized in that The magnetic conductive member (6) comprises a first magnetic conductive portion (61), a connecting portion (62) and a second magnetic conductive portion (63); the connecting portion (62) fixedly connects the first magnetic conductive portion (61) and the second magnetic conductive portion (63); the first magnetic conductive portion (61) and the second magnetic conductive portion (63) are arranged in the length direction of the speaker (30); The first magnetic circuit component (4) is fixed to the first magnetic conductive part (61), and the second magnetic circuit component (5) is fixed to the second magnetic conductive part (63). The first magnetic conductive part (61) is parallel to the second magnetic conductive part (63), and the first magnetic conductive part (61) and the second magnetic conductive part (63) are staggered so that the distance between the first magnetic conductive part (61) and the first diaphragm (21) is greater than the distance between the second magnetic conductive part (63) and the first diaphragm (21).

3. The loudspeaker (30) according to claim 2, characterized in that In the thickness direction of the loudspeaker (30), the overlapping thickness of the first magnetic circuit component (4) and the second magnetic circuit component (5) is greater than 80% of the thickness of the second magnetic circuit component (5).

4. The loudspeaker (30) according to claim 2, characterized in that A first magnetic gap (7) is formed between the first magnetic circuit component (4) and the second magnetic circuit component (5), and a partial structure of the first voice coil (22) and a partial structure of the second voice coil (32) are located in the first magnetic gap (7).

5. The loudspeaker (30) according to claim 4, characterized in that The first magnetic circuit component (4) comprises a first central magnet (41) and a first side magnet (42), wherein the first side magnet (42) is located on the peripheral side of the first central magnet (41), and the first central magnet (41) and the first side magnet (42) at least form a part of a magnetic gap (45) of the first magnetic circuit component (4); The second magnetic circuit component (5) comprises a second central magnet (51) and a second side magnet (52), wherein the second side magnet (52) is located on the circumference of the second central magnet (51), and the second central magnet (51) and the second side magnet (52) form a part of a magnetic gap (55) of the second magnetic circuit component (5); The first magnetic gap (7) is formed between the first central magnet (41) and the second central magnet (51).

6. The loudspeaker (30) according to claim 5, characterized in that The minimum distance between the first central magnet (41) and the second central magnet (51) is less than or equal to 2 mm.

7. The loudspeaker (30) according to claim 4, characterized in that The connecting portion (62) is located in the first magnetic gap (7), and the connecting portion (62) is located between the first voice coil (22) and the second voice coil (32).

8. The loudspeaker (30) according to claim 7, characterized in that The thickness of the connecting portion (62) is smaller than that of the first magnetic conductive portion (61) and / or the second magnetic conductive portion (63); Alternatively, the thickness of the connecting portion (62) is less than or equal to 0.35 mm, and the thickness of the first magnetic conductive portion (61) and / or the thickness of the second magnetic conductive portion (63) is greater than or equal to 0.35 mm.

9. The loudspeaker (30) according to claim 7, characterized in that: The connecting portion (62) is provided with a connecting hole (64), and the connecting hole (64) connects the spaces on both sides of the connecting portion (62); The cross-sectional area of ​​the connecting hole (64) in the direction perpendicular to the length of the loudspeaker (30) is greater than half of the cross-sectional area of ​​the first voice coil (22) or the second voice coil (32) in the direction perpendicular to the length of the loudspeaker (30); or, the number of the connecting holes (64) is multiple, and in the arrangement direction of the first voice coil (22) and the second voice coil (32), the multiple connecting holes (64) at least cover half of the area of ​​the second voice coil (32).

10. The loudspeaker (30) according to claim 9, characterized in that The connecting portion (62) further comprises a reinforcing portion (65), wherein the reinforcing portion (65) is made of a metal material and covers the surface of the connecting portion (62); or, the reinforcing portion (65) is made of an insulating material and fills the connecting hole (64).

11. The loudspeaker (30) according to any one of claims 1 to 10, characterized in that: The magnetic conductive component (6) is an integrated structural component.

12. The loudspeaker (30) according to any one of claims 1 to 10, characterized in that: A first voice coil (22) and a first magnetic circuit component (4) are arranged in a group, and a second voice coil (32) and a second magnetic circuit component (5) are arranged in a group. A group of the second voice coil (32) and the second magnetic circuit component (5) and at least one group of the first voice coil (22) and the first magnetic circuit component (4) are arranged alternately along a first direction, and the first direction is parallel to the length direction of the speaker (30).

13. The loudspeaker (30) according to claim 12, characterized in that The first voice coil (22) and the first magnetic circuit component (4) have two groups, and the second voice coil (32) and the second magnetic circuit component (5) have one group; or, the first voice coil (22) and the first magnetic circuit component (4) have three groups, and the second voice coil (32) and the second magnetic circuit component (5) have two groups.

14. The loudspeaker (30) according to any one of claims 1 to 10, characterized in that: The vibration directions of the first diaphragm (21) and the second diaphragm (31) are parallel, and the first diaphragm (21) and the second diaphragm (31) are used to form an acoustic dipole or an acoustic monopole.

15. The loudspeaker (30) according to any one of claims 1 to 10, characterized in that: The length directions of the first voice coil (22) and the second voice coil (32) are parallel to the arrangement direction of the first voice coil (22) and the second voice coil (32).

16. An electronic device, characterized in that: The invention comprises a machine body and a loudspeaker (30) according to any one of claims 1 to 15, wherein the loudspeaker (30) is fixed to the machine body.

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