Loudspeaker and electronic equipment

Abstract

The invention provides a loudspeaker and electronic equipment. The loudspeaker comprises a basin frame, a magnetic circuit assembly, a first vibrating diaphragm and a second vibrating diaphragm, the magnetic circuit assembly, the first vibrating diaphragm and the second vibrating diaphragm are fixedly connected with the basin frame, and the first vibrating diaphragm and the second vibrating diaphragm are located on the two opposite sides of the magnetic circuit assembly respectively. At least part of the basin frame, part of the magnetic circuit assembly and the first vibrating diaphragm jointly define a first cavity, at least part of the basin frame, part of the magnetic circuit assembly and the second vibrating diaphragm jointly define a second cavity, and the second cavity and the first cavity are arranged in a spaced mode. The basin frame is provided with a first through hole and a first channel, the first through hole is communicated with the first cavity and a side space, back to the first diaphragm, of the second diaphragm, and the first channel is communicated with the second cavity and a side space, back to the second diaphragm, of the first diaphragm. The loudspeaker can realize low-pitch and medium-pitch (or medium-high pitch) output, and can independently debug low-frequency and medium-frequency (or medium-high frequency) wavebands, so that the loudspeaker and the electronic equipment have better tone quality.

Description

Technical Field

[0001] This application relates to the field of audio technology, and more particularly to a loudspeaker and electronic device. Background Technology

[0002] Miniature speakers are widely used in electronic devices such as headphones, mobile phones, tablets, and laptops. Because electronic devices are typically small and have limited internal space, small speakers are used. However, when these speakers are operating, their frequency response curves are not ideal, resulting in suboptimal sound quality that fails to meet consumer expectations. Summary of the Invention

[0003] This application provides a speaker and an electronic device. The speaker and electronic device have better sound quality.

[0004] In a first aspect, embodiments of this application provide a loudspeaker. The loudspeaker includes a frame, a magnetic circuit assembly, a first diaphragm, and a second diaphragm. The magnetic circuit assembly is fixedly connected to the frame. The peripheries of both the first and second diaphragms are fixed to the frame, and the first and second diaphragms are located on opposite sides of the magnetic circuit assembly. At least a portion of the frame, a portion of the magnetic circuit assembly, and the first diaphragm together enclose a first chamber. The frame has a first through hole that connects the first chamber and the space on the side of the second diaphragm facing away from the first diaphragm. At least a portion of the frame, a portion of the magnetic circuit assembly, and the second diaphragm together enclose a second chamber. The second chamber is spaced apart from the first chamber. The magnetic circuit assembly has a first channel that is spaced apart from the first chamber and connects the second chamber and the space on the side of the first diaphragm facing away from the second diaphragm.

[0005] In this embodiment, the first chamber can be connected to the space on the side of the second diaphragm opposite to the first diaphragm through a first through hole, so that sound waves in the first chamber can propagate to the side of the second diaphragm opposite to the first diaphragm through the first through hole; the second chamber can be connected to the space on the side of the first diaphragm opposite to the second diaphragm through a first channel, so that sound waves in the second chamber can propagate to the side of the first diaphragm opposite to the second diaphragm through the first channel. Furthermore, since the second chamber and the first channel are spaced apart from the first chamber, meaning there is no airflow between the second chamber, the first channel, and the first chamber, the airflow in the first chamber and the airflow in the second chamber are less likely to interfere with each other, thus avoiding mutual influence on the propagation of sound waves in the first and second chambers, which is beneficial for improving the sound quality of the speaker.

[0006] In some examples of this application, the first diaphragm can be used to generate low-frequency sound waves, that is, the first diaphragm can serve as a bass diaphragm. The second diaphragm can be used to generate mid-frequency sound waves, that is, the second diaphragm can serve as a mid-range diaphragm. The speaker can generate low-frequency sound waves through the first diaphragm and mid-frequency sound waves through the second diaphragm, and the mid-frequency sound waves generated by the second diaphragm can propagate through the first channel to the side of the first diaphragm facing away from the second diaphragm. At this time, both the low-frequency sound waves generated by the first diaphragm and the mid-frequency sound waves generated by the second diaphragm can propagate to the side of the first diaphragm facing away from the second diaphragm, so that the speaker can simultaneously achieve bass and mid-range output, and the low-frequency and mid-frequency bands can be adjusted independently to achieve better sound resolution in the low-frequency and mid-frequency ranges, making the speaker's frequency response curve more delicate in the low-frequency range and flatter in the mid-frequency range, thereby improving the speaker's sound quality. In the embodiments of this application, the frequency of the low-frequency sound waves is in the range of 20Hz to 2kHz, and the frequency of the mid-frequency sound waves is in the range of 2kHz to 6kHz. Understandably, in this example, the first through-hole can serve as a venting channel for the first diaphragm to balance the air pressure within the first chamber. The first channel can serve as the sound outlet channel for the second diaphragm.

[0007] In other examples of this application, the first diaphragm can be used to generate low-frequency sound waves, that is, the first diaphragm can serve as a bass diaphragm. The second diaphragm can be used to generate mid-to-high frequency sound waves, that is, the second diaphragm can serve as a mid-to-high frequency diaphragm. The speaker can generate low-frequency sound waves through the first diaphragm and mid-frequency sound waves through the second diaphragm. Both the low-frequency sound waves generated by the first diaphragm and the mid-to-high frequency sound waves generated by the second diaphragm can propagate to the side of the second diaphragm facing away from the first diaphragm, so that the speaker can simultaneously achieve bass, mid-to-high, and treble output. Furthermore, the low-frequency and mid-to-high frequency bands can be independently tuned to achieve better sound resolution in the low-frequency and mid-to-high frequency ranges. This results in a more delicate frequency response curve in the low-frequency range, a flatter mid-frequency range, and reduced peaks and valleys in the high-frequency range, thereby improving the speaker's sound quality. In the embodiments of this application, the frequency of the low-frequency sound waves is in the range of 20Hz to 2kHz, the frequency of the mid-frequency sound waves is in the range of 2kHz to 6kHz, and the frequency of the high-frequency sound waves is greater than 6kHz. Understandably, in this example, the first through-hole can serve as the sound outlet channel for the first diaphragm. The first channel can serve as the back venting channel for the second diaphragm to balance the air pressure within the second chamber.

[0008] Furthermore, in this embodiment, both the first through-hole and the first channel can be formed from components of the speaker itself. For example, the first through-hole can be formed by a frame, and the first channel can be formed by a magnetic circuit assembly. This eliminates the need for additional separate structural components to form the first through-hole and the first channel, simplifying the speaker's structure and facilitating miniaturization.

[0009] In one possible implementation, the first diaphragm is provided with a second through hole, which connects the first channel to the outside of the speaker.

[0010] In this embodiment, the second chamber and the first channel can be connected to the space on the side of the first diaphragm facing away from the second diaphragm via a second through-hole. The second through-hole can be formed by the first diaphragm, that is, the second through-hole can be formed by a component of the speaker itself. In this way, the second through-hole can be integrated into the structure of the speaker itself, and the speaker does not need to have an additional separate structural component to form the second through-hole, making the speaker structure simpler and facilitating speaker miniaturization.

[0011] In one possible implementation, the magnetic circuit assembly has a first magnetic gap and a second magnetic gap spaced apart, and the loudspeaker also includes a first voice coil and a second voice coil. One end of the first voice coil is fixedly connected to the first diaphragm, and the other end is located in the first magnetic gap. One end of the second voice coil is fixedly connected to the second diaphragm, and the other end is located in the second magnetic gap.

[0012] In this embodiment, when the first and second voice coils are energized, they are driven by a magnetic field to vibrate the first and second diaphragms, respectively. By using a spaced-apart first and second magnetic gap, compared to a scheme where the first and second voice coils are placed in the same magnetic gap, the magnetic fields within the first and second magnetic gaps are less likely to interfere with each other. Therefore, the first voice coil located in the first magnetic gap is not affected by the magnetic field of the second magnetic gap, and vice versa. Thus, when the first voice coil drives the first diaphragm to vibrate and the second voice coil drives the second diaphragm to vibrate, the first and second diaphragms do not interfere with each other, ensuring optimal vibration performance. Furthermore, both the first and second magnetic gaps can be made relatively narrow, which helps to increase the magnetic field strength within them. This allows for a larger driving force from the first and second voice coils, further enhancing the vibration performance of the first and second diaphragms and ultimately improving the speaker's sensitivity.

[0013] In one possible implementation, the magnetic circuit assembly includes a first magnetic element, a second magnetic element, and a third magnetic element, wherein the second magnetic element is disposed around the first magnetic element, and a portion of a first magnetic gap is formed between the first magnetic element and the second magnetic element; and the third magnetic element is disposed around the second magnetic element, and a portion of a second magnetic gap is formed between the second magnetic element and the third magnetic element.

[0014] In this embodiment, the magnetic circuit assembly uses a first magnetic element, a second magnetic element, and a third magnetic element spaced apart, such that the second magnetic element can form a first magnetic gap and a second magnetic gap spaced apart with the first magnetic element and the third magnetic element, respectively. Compared to a scheme that uses a magnetic conductor between two magnetic elements to separate the magnetic gap, the magnetic field strength within the first magnetic gap and the second magnetic gap in this embodiment is larger, and mutual interference between the first magnetic gap and the second magnetic gap is less likely to occur. This is beneficial for improving the vibration effect of the first diaphragm and the second diaphragm, thereby improving the sound quality of the speaker.

[0015] In one possible implementation, the first magnetic element has a first connecting hole, which is part of the first channel. In this way, a portion of the first channel can be formed by the first magnetic element, allowing the first channel to be integrated into the structure of the speaker itself, simplifying the speaker's structure and facilitating miniaturization.

[0016] In one possible implementation, the magnetic circuit assembly further includes a first magnetic conductive element and a second magnetic conductive element. The first magnetic conductive element is fixedly connected to the first magnetic element and the second magnetic element, and the second magnetic conductive element is fixedly connected to the third magnetic element. A portion of a first magnetic gap is formed between the first magnetic conductive element and the second magnetic conductive element. The first magnetic conductive element is provided with a second connecting hole, which communicates with the second chamber and is part of the first channel.

[0017] In this embodiment, the first and second magnetic conductive elements can alter the magnetic field distribution of the magnetic circuit assembly, allowing the magnetic field of the magnetic circuit assembly to be concentrated in the magnetic gap, thereby enhancing the magnetic field strength within the magnetic gap. Furthermore, a portion of the first channel can be formed by the first magnetic conductive element, thus integrating the first channel into the speaker's structure, simplifying the speaker's structure and facilitating its miniaturization.

[0018] The magnetic circuit assembly also includes a third magnetic conductor and a fourth magnetic conductor. The third magnetic conductor is fixedly connected to the first magnetic conductor, and the fourth magnetic conductor is fixedly connected to the second magnetic conductor. The third magnetic conductor and the fourth magnetic conductor form part of a second magnetic gap. The third magnetic conductor is provided with a third connecting hole, and the second connecting hole communicates with the second chamber. The second connecting hole is part of the first channel.

[0019] In this embodiment, both the third and fourth magnetic conductive elements can alter the magnetic field distribution of the magnetic circuit assembly, allowing the magnetic field of the magnetic circuit assembly to be concentrated in the magnetic gap, thereby enhancing the magnetic field strength within the magnetic gap. Furthermore, a portion of the first channel can be formed by the third magnetic conductive element, thus integrating the first channel into the speaker's structure, simplifying the speaker's structure and facilitating its miniaturization.

[0020] In one possible implementation, the first diaphragm includes a vibrating portion, a first folded ring portion, a second folded ring portion, a first fixing portion, and a second fixing portion. The second fixing portion is disposed around the second through hole. The second folded ring portion surrounds the outer periphery of the second fixing portion and is connected to the second fixing portion. The vibrating portion surrounds the outer periphery of the second folded ring portion and is connected to the second folded ring portion. The first folded ring portion surrounds the outer periphery of the vibrating portion and is connected to the vibrating portion. The first fixing portion surrounds the outer periphery of the first folded ring portion and is connected to the first folded ring portion. The vibrating portion is connected to the first voice coil. The first fixing portion is fixedly connected to the frame. The second fixing portion is fixedly connected to the magnetic circuit assembly.

[0021] In this embodiment, when the first voice coil is energized, it drives the vibrating part of the first diaphragm to vibrate. By providing a first folded ring between the vibrating part of the first diaphragm and the first fixed part, and a second folded ring between the vibrating part and the second fixed part, the first and second folded rings are deformable, allowing the vibrating part to be displaced relative to the first and second fixed parts in the axial direction of the speaker. This avoids stress concentration and diaphragm cracking caused by the vibrating part being stretched during vibration.

[0022] In one possible implementation, the loudspeaker further includes a first electrical connection component and a second electrical connection component spaced apart, the first electrical connection component being electrically connected to a first voice coil and the second electrical connection component being electrically connected to a second voice coil.

[0023] In this embodiment, the first voice coil and the second voice coil can be electrically connected to an external power source through the first electrical connection component and the second electrical connection component, respectively, to supply power to the first voice coil and the second voice coil. By spacing the first electrical connection component and the second electrical connection component, mutual interference between the first electrical connection component and the second electrical connection component can be avoided, which would affect the electrical signals of the first voice coil and the second voice coil, and thus affect the vibration effect of the first diaphragm and the second diaphragm.

[0024] In one possible implementation, the loudspeaker further includes a first electrical connection component and a third electrical connection component, the first electrical connection component being electrically connected to a first voice coil, the first electrical connection component also being electrically connected to a third electrical connection component, and the third electrical connection component being electrically connected to a second voice coil.

[0025] In this embodiment, the first voice coil and the second voice coil can be electrically connected to an external power source through a first electrical connection component and a third electrical connection component, respectively, to supply power to the first voice coil and the second voice coil.

[0026] In one possible implementation, the third electrical connection component includes a first part and a second part, the plane of the first part intersects the plane of the second part, one end of the second part is connected to the first part, and the other end extends to the side of the first diaphragm facing away from the second diaphragm.

[0027] In this embodiment, the first electrical connection component is electrically connected to the third electrical connection component, thereby allowing the first voice coil to be electrically connected to the third electrical connection component. The third electrical connection component can be electrically connected to an external power source to power the first and second voice coils. Furthermore, the other end of the third electrical connection component can extend to the side of the first diaphragm facing away from the second diaphragm to facilitate electrical connection to an external power source. It is understood that when the speaker is mounted in an electronic device and the first diaphragm faces the internal power source of the electronic device, extending the other end of the third electrical connection component to the side of the first diaphragm facing away from the second diaphragm facilitates electrical connection between the third electrical connection component and the power source on that side of the first diaphragm. In some examples, the third electrical connection component can be a flexible circuit board.

[0028] In one possible implementation, the loudspeaker further includes a bracket located between the magnetic circuit assembly and the first diaphragm, and fixedly connecting the magnetic circuit assembly and the first diaphragm. The bracket has a third through hole, which is spaced apart from the first chamber and connects to the first channel and the second through hole. Thus, the first diaphragm can be fixedly connected to the magnetic circuit assembly via the bracket, and the bracket can also support the first diaphragm. The second chamber and the first channel can communicate through the third through hole and the second through hole of the bracket, allowing the second chamber to connect to the space on the side of the first diaphragm facing away from the second diaphragm.

[0029] In one possible implementation, the basin stand includes a first basin stand, which includes a first side and a second side facing away from each other. The first side of the first basin stand is fixedly connected to a first diaphragm. The first basin stand is provided with a first through hole, which penetrates the first side and the second side of the first basin stand.

[0030] It is understood that in this embodiment, the first surface of the first frame can face the first diaphragm, and the second surface can face the second diaphragm. By providing a first through hole that penetrates through the first and second surfaces of the first frame, the first through hole can connect to the space on the side of the second diaphragm facing away from the first diaphragm. Furthermore, the structure of the first through hole is relatively simple, which helps to simplify the speaker manufacturing process.

[0031] In one possible implementation, the washbasin frame includes a first washbasin frame and a second washbasin frame. The first washbasin frame is fixedly connected to the second washbasin frame, and a first diaphragm is fixedly connected to the first washbasin frame. The second washbasin frame has a second through groove, and the second washbasin frame has a third through groove. The second through groove connects to a first chamber and the third through groove, and the second and third through grooves together form a first through hole. In this way, the first chamber can connect to the second through groove of the first washbasin frame and the third through groove of the second washbasin frame, thereby connecting to the space on the side of the second diaphragm facing away from the first diaphragm.

[0032] In one possible implementation, the first basin frame includes a first side and a second side arranged opposite to each other, the first side of the first basin frame is fixedly connected to a first diaphragm, and a second through groove passes through the first side and the second side of the first basin frame; the second basin frame includes a first side and a second side arranged opposite to each other, the first side of the second basin frame is fixedly connected to the second side of the first basin frame, the second side of the second basin frame is fixedly connected to a second diaphragm, and a third through groove passes through the first side and the second side of the second basin frame.

[0033] It is understood that in this embodiment, the first surface of the first basin frame can face the first diaphragm, and the second surface of the second basin frame can face the second diaphragm. By providing a second through groove penetrating through the first and second surfaces of the first basin frame, and a third through groove penetrating through the first and second surfaces of the second basin frame, the second and third through grooves can connect the space on the side of the second diaphragm facing away from the first diaphragm, that is, the first through hole can connect the space on the side of the second diaphragm facing away from the first diaphragm.

[0034] In one possible implementation, the vibration frequency of the second diaphragm is greater than that of the first diaphragm, and the diameter of the second diaphragm is smaller than that of the first diaphragm.

[0035] In this embodiment, by setting the diameter of the second diaphragm to be smaller, the vibrating mass of the second diaphragm is smaller, which facilitates a smaller vibration displacement and thus a larger vibration frequency. In some examples, when the second diaphragm is used as a midrange diaphragm, it helps to improve the midrange sound quality. In other examples, when the second diaphragm is used as a mid-high frequency diaphragm, it helps to improve the mid-high frequency sound quality. Furthermore, because the diameter of the second diaphragm is smaller, when the second diaphragm is fixed to the second frame, the inner edge of the second frame can be closer to the central axis of the speaker. In this case, the distance between the inner and outer edges of the second frame is larger, thus the area of ​​the second surface of the second frame can be larger. In this way, the second surface of the second frame can be used to install other structural components of the speaker, such as electrical connectors, making more efficient use of the speaker space, thereby simplifying the speaker structure and facilitating the miniaturization of the speaker.

[0036] In one possible implementation, the loudspeaker further includes a first damping element disposed on the frame and covering the first through hole.

[0037] In this embodiment, by providing a first damping element, impurities from outside the speaker can be prevented from entering the speaker's interior through the first through-hole. For example, the first damping element can be a mesh fabric and can be fixed to the first frame by adhesive.

[0038] Secondly, embodiments of this application provide an electronic device. The electronic device includes a housing and a speaker as described above, the speaker being mounted on the housing.

[0039] In some examples of this application, the electronic device can achieve low-frequency and mid-frequency output, and the low-frequency and mid-frequency bands can be tuned independently, which is beneficial to improving the sound quality of the electronic device.

[0040] In other examples of this application, the electronic device can achieve low-frequency and mid-high-frequency output, and the low-frequency and mid-high-frequency bands can be tuned independently, which is beneficial to improving the sound quality of the electronic device.

[0041] In one possible implementation, the housing has an inner cavity, and the speaker basket is connected to the inner wall of the housing to separate the inner cavity into a front cavity and a rear cavity. The front cavity is connected to the outside of the first channel and the electronic device, and the rear cavity is connected to the first through hole. The electronic device also includes a tweeter, which is mounted in the front cavity.

[0042] It is understood that in this embodiment, the speaker can achieve low-frequency and mid-frequency output. The speaker and the tweeter can work simultaneously, and the sound emitted by the speaker and the tweeter can be propagated to the outside of the electronic device through the front cavity, so that the electronic device can simultaneously achieve low-frequency, mid-frequency and high-frequency output. Furthermore, the electronic device provided in this application embodiment can independently adjust the low-frequency, mid-frequency bands and the high-frequency unit, thereby improving the sound quality of the electronic device.

[0043] In one possible implementation, the housing has an inner cavity, and the speaker is connected to the inner wall of the housing to separate the inner cavity into a front cavity and a rear cavity. The front cavity is connected to the outside of the electronic device via a first through hole, and the rear cavity is connected to a first channel.

[0044] It is understood that in this embodiment, the speaker can achieve low-frequency and mid-to-high-frequency output. The sound emitted by the speaker can be propagated to the outside of the electronic device through the front cavity, so that the electronic device can simultaneously achieve low-frequency, mid-frequency, and high-frequency output. Furthermore, the electronic device provided in this application embodiment can independently adjust the low-frequency, mid-to-high-frequency bands and the high-frequency unit, thereby improving the sound quality of the electronic device.

[0045] In one possible implementation, the loudspeaker further includes a through hole, which is disposed on the frame or on the magnetic circuit assembly. The projection of the through hole along the axial direction of the loudspeaker is spaced apart from the projections of the first through hole, the first diaphragm, and the second diaphragm on a plane perpendicular to the axial direction of the loudspeaker. The through hole connects the front cavity and the rear cavity.

[0046] It is understood that, in this embodiment, the projection of the through-hole along the axial direction of the speaker, on a plane perpendicular to the axial direction of the speaker, can be located outside the projection of the first diaphragm. The front and rear cavities of the electronic device can be connected through the through-hole of the speaker, thereby balancing the air pressure in the front cavity and preventing excessive pressure in the front cavity from compressing the user's ear canal and affecting the user experience. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0048] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0049] Figure 2 yes Figure 1 The diagram shown is a structural schematic of a loudspeaker in some embodiments;

[0050] Figure 3 yes Figure 2 The speaker shown is a partial exploded view of its structure in some embodiments.

[0051] Figure 4A yes Figure 3 The diagram shows a structural schematic of the magnetic circuit assembly in some embodiments;

[0052] Figure 4B yes Figure 4A The diagram shows the structure of the magnetic circuit assembly from another angle.

[0053] Figure 5 yes Figure 4A The diagram shows a partial exploded view of the magnetic circuit assembly in some embodiments.

[0054] Figure 6 yes Figure 4A The diagram shows a cross-sectional view of the magnetic circuit assembly cut along point AA.

[0055] Figure 7A yes Figure 3 The diagram shown is a structural schematic of the first pot stand in some embodiments;

[0056] Figure 7B yes Figure 7A A schematic diagram of the first pot stand shown from another angle;

[0057] Figure 8A yes Figure 7A The diagram shows a cross-sectional view of the first basin stand cut along point BB.

[0058] Figure 8B yes Figure 7A The diagram shows a cross-sectional view of the first basin stand cut along point CC.

[0059] Figure 9 yes Figure 7A The diagram shows a cross-sectional view of the first basin stand cut along point DD.

[0060] Figure 10A yes Figure 3The diagram shown is a structural schematic of the second pot stand in some embodiments;

[0061] Figure 10B yes Figure 10A The diagram shows the structure of the second pot stand from another angle;

[0062] Figure 11 yes Figure 10B The diagram shows a cross-sectional view of the first basin stand cut along EE.

[0063] Figure 12A yes Figure 2 The diagram shown is a partial structural schematic of a loudspeaker in some embodiments.

[0064] Figure 12B yes Figure 12A The diagram shows a partial structural view of the loudspeaker from another angle.

[0065] Figure 13A yes Figure 12A The diagram shows a cross-sectional view of part of the speaker structure taken along the FF line.

[0066] Figure 13B yes Figure 12A The diagram shows a cross-sectional view of part of the loudspeaker structure taken along line G1-G1.

[0067] Figure 14 yes Figure 12A The diagram shows a cross-sectional view of part of the loudspeaker structure taken along line G2-G2.

[0068] Figure 15A yes Figure 2 The speaker shown is a schematic diagram of a partial cross-sectional structure cut along HH in some embodiments.

[0069] Figure 15B yes Figure 2 The diagram shown is a partial cross-sectional view of the loudspeaker cut along JJ in some embodiments.

[0070] Figure 16 yes Figure 2 The diagram shown is a partial structural schematic of a loudspeaker in some embodiments.

[0071] Figure 17 yes Figure 16 The diagram shows a portion of the speaker structure cut along line KK.

[0072] Figure 18 yes Figure 2 The speaker shown is a partial structural schematic diagram from another angle in some embodiments;

[0073] Figure 19yes Figure 18 The diagram shows a portion of the loudspeaker's structure cut along line LL.

[0074] Figure 20 yes Figure 2 The diagram shows a structural schematic of the speaker in some other embodiments;

[0075] Figure 21 yes Figure 20 The speaker shown is a partial exploded view of its structure in some embodiments.

[0076] Figure 22 yes Figure 21 The diagram shows a partial exploded view of the magnetic circuit assembly in some embodiments.

[0077] Figure 23 yes Figure 21 The diagram shows a partial cross-sectional structure of the magnetic circuit assembly cut along point MM.

[0078] Figure 24 yes Figure 21 The diagram shown is a structural schematic of the first pot stand in some embodiments;

[0079] Figure 25 yes Figure 24 A schematic diagram of the first pot stand shown from another angle;

[0080] Figure 26 yes Figure 24 The first pot stand shown is a schematic diagram of a partial cross-sectional structure cut along NN in some embodiments.

[0081] Figure 27 yes Figure 21 The diagram shown is a structural schematic of the second pot stand in some embodiments;

[0082] Figure 28 yes Figure 27 The diagram shows the structure of the second pot stand from another angle;

[0083] Figure 29 yes Figure 20 The speaker shown is a schematic diagram of a partial cross-sectional structure cut along the PP section in some embodiments.

[0084] Figure 30 yes Figure 21 The diagram shows the structure of the shell at another angle;

[0085] Figure 31 yes Figure 21 The diagram shown is a structural schematic of the third electrical connection component in some embodiments;

[0086] Figure 32 yes Figure 20The diagram shown is a partial structural schematic of the speaker cut along QQ in some embodiments.

[0087] Figure 33 It is a comparison diagram of sound wave distortion under different conditions;

[0088] Figure 34 This is a comparison diagram of the intermodulation distortion curves of the loudspeaker provided in this application and a traditional single-diaphragm loudspeaker;

[0089] Figure 35 This is a comparison of the frequency response curves of the loudspeaker provided in this application and a traditional single-diaphragm loudspeaker;

[0090] Figure 36 This is a comparison diagram of the frequency response curves of the loudspeaker provided in this application and a traditional single-diaphragm loudspeaker;

[0091] Figure 37 yes Figure 1 The diagram shows a cross-sectional view of the electronic device in some embodiments;

[0092] Figure 38 yes Figure 1 Another cross-sectional structural schematic diagram of the electronic device shown in some embodiments;

[0093] Figure 39 yes Figure 1 The illustrated electronic device is shown as a cross-sectional structural schematic diagram in some other embodiments;

[0094] Figure 40 yes Figure 1 The diagram shows another cross-sectional view of the electronic device in some other embodiments. Detailed Implementation

[0095] The embodiments of this application are described below with reference to the accompanying drawings.

[0096] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. 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. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after the connection.

[0097] The directional terms mentioned in the embodiments of this application, such as "upper", "inner", "outer", "side", "front", "rear", etc., are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0098] In the embodiments of this application, the terms "first," "second," "third," "fourth," "fifth," and "sixth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," "third," "fourth," "fifth," and "sixth," etc., may explicitly or implicitly include one or more of that feature. The term "multiple" refers to at least two.

[0099] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0100] References to “some embodiments” and the like in this specification mean that one or more embodiments of this application include the specific features, structures, or characteristics described in connection with that embodiment. Therefore, phrases such as “in some embodiments”, “in other embodiments”, etc., appearing in different parts of this specification do not necessarily refer to the same embodiments, but rather mean “one or more, but not all, embodiments”, unless otherwise specifically emphasized.

[0101] The terms "comprising," "including," and variations thereof, all mean "including but not limited to," unless otherwise specifically emphasized. It is understood that the specific embodiments described herein are merely illustrative of related embodiments and not intended to limit those embodiments. Furthermore, it should be noted that, for ease of description, only the parts relevant to the embodiments are shown in the accompanying drawings.

[0102] In the embodiments of this application, the terms "vertical" and other such limitations are all relative to the current technological level, rather than an absolutely strict definition in a mathematical sense. Slight deviations are allowed, and approximations of verticality are acceptable. For example, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, and the angle between A and B can be between 80° and 100°.

[0103] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0104] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0105] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of an electronic device 100 provided in an embodiment of this application.

[0106] In some embodiments, the electronic device 100 may be a device with audio playback capabilities, such as headphones, mobile phone, tablet computer, multimedia player, speaker, laptop computer, in-vehicle device, foldable terminal device, television, or wearable device. Wearable devices may include smart bracelets, smartwatches, smart headsets, smart glasses, etc. This application does not strictly limit the type of electronic device 100.

[0107] Figure 1 The electronic device 100 shown is illustrated using headphones as an example. It is understood that the headphones can be wireless or wired. Wireless headphones can communicate with the terminal device using electromagnetic waves. Examples include Bluetooth headphones and infrared headphones. Wired headphones can communicate with the terminal device via a wire.

[0108] For example, the electronic device 100 may include a housing 10 and a speaker 20. The speaker 20 may be installed inside the housing 10. The speaker 20 is used to convert electrical signals into sound signals, which can be transmitted through the housing 10 to the outside of the electronic device 100 to achieve sound playback. The housing 10 of the electronic device 100 is the earpiece of an earphone, which is the main structure of the earphone. The earphone may also include an ear stem 30 (also called an ear stick). The ear stem 30 is fixed to the housing 10. For example, the ear stem 30 may be fixed to the side or bottom of the housing 10. For example, the housing 10 of the electronic device 100 may be provided with a sound outlet 101. The sound emitted by the speaker 20 can be transmitted out of the electronic device 100 through the sound outlet 101 to be received by the user.

[0109] For example, the electronic device 100 may further include a circuit board 40, a microcontroller unit (MCU) 50, a power supply 60 (i.e., a battery), and a microphone 70. The circuit board 40 and the MCU 50 may be housed within the housing 10, and the MCU 50 may be fixed to the circuit board 40. The power supply 60 and the microphone 70 may be housed within the ear stem 30. The power supply 60 supplies power to the electronic device 100, and the microphone 70 converts sound signals into electrical signals to enable the electronic device 100 to pick up sound. In some embodiments, the microphone 70 may be located at the bottom of the ear stem 30, or at other locations on the ear stem 30 or within the housing 10. In some embodiments, the number of microphones 70 may be one or more; when there are multiple microphones 70, they may be arranged in different locations within the electronic device 100.

[0110] In some embodiments, the electronic device 100 can be a wireless headset. The wireless headset can be applied to a headset assembly, which includes a charging case, and the wireless headset can be detachably stored inside the charging case. In this case, the electronic device 100 can be provided with a charging contact 80, which can be located at the bottom end of the ear stem 30. When the electronic device 100 is installed in the charging case of the headset assembly, the charging case can charge the electronic device 100 through the charging contact 80.

[0111] In some other embodiments, the electronic device may not include the ear stem 30, and the main components of the electronic device 100 may be housed in the housing 10, or partially housed in the housing 10 and partially housed in other parts of the electronic device 100. This application does not strictly limit the specific structure of the electronic device 100 or the arrangement of its components.

[0112] Understandable Figure 1 Some components of the electronic device 100 are shown only schematically; the actual shape and size of these components are not subject to change. Figure 1 As defined in the accompanying drawings below. It should be understood that the electronic device 100 may include more components, such as an earplug that is fixed to the ear shell and is inserted into the user's ear canal when the user wears the electronic device 100; or, the electronic device 100 may include fewer components, such as excluding the ear stem 30.

[0113] The above mainly introduced the structure of the electronic device 100 and the arrangement of its components. The following section will introduce the specific structure of the speaker 20 in conjunction with the relevant accompanying drawings.

[0114] Please see Figure 2 and Figure 3 , Figure 2 yes Figure 1 The diagram shown is a structural schematic of the speaker 20 in some embodiments. Figure 3 yes Figure 2 The speaker 20 shown is a partial exploded view in some embodiments.

[0115] In some embodiments, the loudspeaker 20 may include a basket 210, a magnetic circuit assembly 23, a first vibration assembly 24, a second vibration assembly 25, a bracket 26, a first damping element 271, a second damping element 272, a first electrical connection assembly 281, and a second electrical connection assembly 282. The basket 210 may include a first basket 21 and a second basket 22. The first vibration assembly 24 may include a first diaphragm 241 and a first voice coil 242. The second vibration assembly 25 may include a second diaphragm 251 and a second voice coil 252. It is understood that... Figure 3The accompanying drawings below only schematically illustrate some of the components included in the speaker 20; the actual shape, size, location, and construction of these components are not subject to change. Figure 3 As defined in the accompanying drawings below. In some embodiments, the speaker 20 may include more or fewer components.

[0116] For example, the speaker 20 can be a circular speaker. The central axis of the speaker 20 can pass through the center of the frame 210, the first diaphragm 241, the first voice coil 242, the magnetic circuit assembly 23, the second diaphragm 251, and the second voice coil 252. In other embodiments, the speaker 20 can also be square or other shapes, which are not strictly limited in this application.

[0117] Please see Figures 4A to 5 , Figure 4A yes Figure 3 The schematic diagram of the magnetic circuit assembly 23 shown in some embodiments is shown. Figure 4B yes Figure 4A The diagram shows the structure of the magnetic circuit assembly 23 from another angle. Figure 5 yes Figure 4A The diagram shows a partial exploded view of the magnetic circuit assembly 23 in some embodiments.

[0118] In some embodiments, the magnetic circuit assembly 23 may include a magnetic component 23A, a first magnetically conductive component 23B, and a second magnetically conductive component 23C. The magnetic component 23A may be fixedly connected to the first magnetically conductive component 23B and the second magnetically conductive component 23C, and the magnetic circuit assembly 23 may be located between the first magnetically conductive component 23B and the second magnetically conductive component 23C, that is, the first magnetically conductive component 23B and the second magnetically conductive component 23C are located on opposite sides of the magnetic component 23A. It is understood that the first magnetically conductive component 23B and the second magnetically conductive component 23C can change the magnetic field distribution of the magnetic circuit assembly, allowing the magnetic field of the magnetic circuit assembly to be concentrated in the magnetic gap, thereby enhancing the magnetic field strength within the magnetic gap.

[0119] For example, the magnetic component 23A may include a first magnetic element 231, a second magnetic element 232, and a third magnetic element 233. The second magnetic element 232 is disposed around and spaced apart from the first magnetic element 231, and the third magnetic element 233 is disposed around and spaced apart from the second magnetic element 232. A portion of a first magnetic gap 20a is formed between the second magnetic element 232 and the third magnetic element 233, and a portion of a second magnetic gap 20b is formed between the first magnetic element 231 and the second magnetic element 232.

[0120] For example, the first magnetic element 231 may have a first connecting hole 2311, which can pass through the first magnetic element 231 along the axial direction of the speaker 20. The second magnetic element 232 may be a ring magnet. The third magnetic element 233 may include two magnets arranged around the second magnetic element 232 and spaced apart from it. In other embodiments, the third magnetic element 233 may also be a ring magnet, which is not strictly limited in this application.

[0121] In some embodiments, the first magnetic conductive assembly 23B may include a first magnetic conductive element 234 and a second magnetic conductive element 235, wherein the second magnetic conductive element 235 surrounds the first magnetic conductive element 234 and is spaced apart from the first magnetic conductive element 234. The first magnetic conductive element 234 may be generally annular. The first magnetic conductive element 234 may have a second connecting hole 2341 and a fixing groove 2342. The second connecting hole 2341 may pass through the first magnetic conductive element 234 along the axial direction of the speaker 20; the fixing groove 2342 may surround the second connecting hole 2341 and communicate with the second connecting hole 2341.

[0122] The second magnetic conductive element 235 can be approximately annular. The second magnetic conductive element 235 can have a first side 235a and a second side 235b facing away from each other. The first side 235a can surround the first magnetic conductive element 234, and the second side 235b can surround the first side 235a. It is understood that the first side 235a can face the first magnetic conductive element 234, and the second side 235b can face away from the first magnetic conductive element 234.

[0123] The second magnetic conductor 235 may have an extension 2351, which may protrude from a portion of the second side surface 235b in a direction away from the first side surface 235a. For example, the extension 2351 may have a through hole 2352, which may pass through the extension 2351 along the axial direction of the speaker 20.

[0124] In some embodiments, when projected along the axial direction of the speaker 20, the projection of the through hole 2352 is spaced apart from the projections of the first through hole 215, the first diaphragm 241, and the second diaphragm 251 on a plane perpendicular to the axial direction of the speaker 20. For example, when projected along the axial direction of the speaker 20, the projection of the through hole 2352 may be located outside the projection of the first diaphragm 241 on a plane perpendicular to the axial direction of the speaker 20.

[0125] For example, the number of extensions 2351 and through holes 2352 can each be two, with the two extensions 2351 spaced apart and the two through holes 2352 corresponding to the two extensions 2351 respectively. In some other embodiments, the number of extensions 2351 and through holes 2352 can also be one or more than two, and this application does not strictly limit this. When the number of extensions 2351 is more than two, the multiple extensions 2351 are distributed at intervals.

[0126] For example, the second magnetic conductor 235 may also be provided with a first notch 2353 and a second notch 2354 spaced apart. Both the first notch 2353 and the second notch 2354 can pass through the second magnetic conductor 235 along the axial direction of the speaker 20, and the first notch 2353 and the second notch 2354 can also extend to the second side 235b of the second magnetic conductor 235.

[0127] For example, the number of first notches 2353 can be two, and the two first notches 2353 are spaced apart. In some other embodiments, the number of first notches 2353 can also be one or more than two, and this application does not strictly limit this. When the number of first notches 2353 is more than two, the multiple first notches 2353 are spaced apart.

[0128] In some embodiments, the second magnetic conductive assembly 23C may include a third magnetic conductive element 236 and a fourth magnetic conductive element 237, wherein the fourth magnetic conductive element 237 surrounds the third magnetic conductive element 236 and is spaced apart from the third magnetic conductive element 236. The third magnetic conductive element 236 may be generally annular. The third magnetic conductive element 236 may have a third connecting hole 2361, which may extend through the third magnetic conductive element 236 along the axial direction of the speaker 20.

[0129] The fourth magnetic conductor 237 can be generally annular. The fourth magnetic conductor 237 can have a third side 237a and a fourth side 237b facing away from each other. The third side 237a can surround the third magnetic conductor 236, and the fourth side 237b can surround the third side 237a. It is understood that the third side 237a can face the third magnetic conductor 236, and the fourth side 237b can face away from the third magnetic conductor 236. For example, the fourth magnetic conductor 237 can have a fifth notch 2371. The fifth notch 2371 can penetrate the fourth magnetic conductor 237 along the axial direction of the speaker 20, and the fifth notch 2371 can also extend to the fourth side 237b of the fourth magnetic conductor 237.

[0130] Please refer to the following: Figure 4A , Figure 5 and Figure 6 , Figure 6 yes Figure 4A The diagram shows a cross-sectional view of the magnetic circuit assembly 23 cut along point AA.

[0131] In some embodiments, the first magnetic conductive element 234 can be fixedly connected to the first magnetic element 231 and the second magnetic element 232, and the second magnetic conductive element 235 can be fixedly connected to the third magnetic element 233. The third magnetic conductive element 236 can be fixedly connected to the first magnetic element 231, and the fourth magnetic conductive element 237 can be fixedly connected to the second magnetic element 232 and the third magnetic element 233. Both the first magnetic conductive assembly 23B and the second magnetic conductive assembly 23C can be made of magnetically conductive material. A portion of a first magnetic gap 20a can be formed between the first magnetic conductive element 234 and the second magnetic conductive element 235. A portion of a second magnetic gap 20b can be formed between the third magnetic conductive element 236 and the fourth magnetic conductive element 237. It is understood that, in the embodiments of this application, the second magnetic gap 20b of the magnetic circuit assembly 23 can surround the first magnetic gap 20a and be spaced apart from the first magnetic gap 20a.

[0132] For example, the first connecting hole 2311 of the first magnetic element 231 is connected to the second connecting hole 2341 of the first magnetic conductive element 234 and the third connecting hole 2361 of the third magnetic conductive element 236. It can be understood that, in the embodiments of this application, the first connecting hole 2311, the second connecting hole 2341 and the third connecting hole 2361 can be interconnected and together form the first channel 2301.

[0133] For example, when projected along the axial direction of the speaker 20, on a plane perpendicular to the axial direction of the speaker 20, the projection of the fifth notch 2371 is at least partially spaced from the projection of the first notch 2353. The projection of the fifth notch 2371 is also at least partially spaced from the projection of the second notch 2354.

[0134] Please refer to the following: Figures 7A to 8A , Figure 7A yes Figure 3 The diagram shown is a structural schematic of the first basin stand 21 in some embodiments. Figure 7B yes Figure 7A The diagram shows the structure of the first pot stand 21 from another angle. Figure 8A yes Figure 7A The diagram shows a cross-sectional view of the first basin stand 21 cut along BB.

[0135] In some embodiments, the first washbasin stand 21 may include a first surface 211, a second surface 212, and a first inner surface 213 and a first outer surface 214 connected between the first surface 211 and the second surface 212. The first surface 211 and the second surface 212 are arranged facing away from each other. The first outer surface 214 may surround the second inner surface. It is understood that the first washbasin stand 21 may be generally annular, and both the first surface 211 and the second surface 212 of the first washbasin stand 21 have inner edges and outer edges. The first inner surface 213 may connect to the inner edges of the first surface 211 and the second surface 212, and the first outer surface 214 may connect to the outer edges of the first surface 211 and the second surface 212.

[0136] In some embodiments, the first washbasin holder 21 is provided with a first through hole 215. The first through hole 215 can penetrate through the first surface 211 and the second surface 212 of the first washbasin holder 21, and the opening of the first through hole 215 can extend to the first inner surface 213. Exemplarily, the first washbasin holder 21 may have a protrusion that protrudes from a portion of the first outer surface 214 in a direction away from the first inner surface 213. At least a portion of the first through hole 215 may be located in the protrusion. It is understood that the protrusion may include a portion of the first surface 211, a portion of the second surface 212, and a portion of the first outer surface 214.

[0137] For example, the number of first through holes 215 can be two, and the two first through holes 215 can be spaced apart. In some other embodiments, the number of first through holes 215 can also be one or more than two, and this application does not strictly limit this. When the number of first through holes 215 is more than two, the multiple first through holes 215 are distributed at intervals.

[0138] For example, the first basin stand 21 may also be provided with a first receiving groove 2161 and a second receiving groove 2162 spaced apart. The openings of the first receiving groove 2161 and the second receiving groove 2162 may both be located on the first surface 211. The first receiving groove 2161 and the second receiving groove 2162 are both spaced apart from the first through hole 215.

[0139] For example, the first basin stand 21 may further include a first limiting portion 217. The first limiting portion 217 may protrude from a portion of the first surface 211 in a direction away from the second surface 212. The first limiting portion 217 may be spaced apart from the first outer surface 214. For example, the first limiting portion 217 may include a plurality of spaced-apart arc-shaped segments. The plurality of arc-shaped segments are arranged around the central axis of the speaker 20, and the plurality of arc-shaped segments are spaced apart from the first through hole 215, the first receiving groove 2161, and the second receiving groove 2162.

[0140] Please refer to the following: Figure 7B and Figure 8B , Figure 8B yes Figure 7A The diagram shows a cross-sectional view of the first basin stand 21 cut along CC.

[0141] In some embodiments, the first basin holder 21 may further be provided with a first extension hole 2181 and a second extension hole 2182 spaced apart. One end opening of the first extension hole 2181 may be located on the second surface 212, and the other end opening of the first extension hole 2181 may extend to the first receiving groove 2161. It is understood that the first extension hole 2181 may communicate with the first receiving groove 2161. One end opening of the second extension hole 2182 may be located on the second surface 212, and the other end opening of the second extension hole 2182 may extend to the second receiving groove 2162. It is understood that the second extension hole 2182 may communicate with the second receiving groove 2162.

[0142] Please see Figure 7B and Figure 9 , Figure 9 yes Figure 7A The diagram shows a cross-sectional view of the first basin stand 21 cut along DD.

[0143] In some embodiments, the first basin stand 21 may also be provided with a first through groove 2191. One end opening of the first through groove 2191 may be located on the first inner side surface 213 of the first basin stand 21, and the other end opening of the first through groove 2191 may be located on the second side surface 212. The first through groove 2191 and the first through hole 215 are spaced apart. For example, the number of first through grooves 2191 may be two, and the two first through grooves 2191 may be spaced apart. In some other embodiments, the number of first through grooves 2191 may also be one or more than two, and this application does not strictly limit this.

[0144] In some embodiments, the first washbasin stand 21 may also be provided with a first clearance groove 2192, the opening of which may be located on the second surface 212 of the first washbasin stand 21 and extend to the first outer surface 214. For example, the first clearance groove 2192 communicates with the first through groove 2191.

[0145] For example, there can be two first clearance slots 2192, which can be spaced apart and connected to two first through slots 2191 one-to-one. In some other embodiments, the number of first clearance slots 2192 can be one or more than two, and this application does not strictly limit this. When there are more than two first clearance slots 2192, the multiple first clearance slots 2192 are distributed at intervals.

[0146] Please refer to the following: Figure 10A and Figure 10B , Figure 10A yes Figure 3The diagram shown is a structural schematic of the second basin stand 22 in some embodiments. Figure 10B yes Figure 10A The diagram shows the structure of the second basin stand 22 from another angle.

[0147] In some embodiments, the second washbasin holder 22 may include a first surface 221, a second surface 222, and a second inner surface 223 and a second outer surface 224 connected between the first surface 221 and the second surface 222. The first surface 221 and the second surface 222 are disposed opposite to each other. The second outer surface 224 may surround the second inner surface 223. It is understood that the second washbasin holder 22 may be generally annular, and both the first surface 221 and the second surface 222 of the second washbasin holder 22 have inner edges and outer edges. The second inner surface 223 may connect to the inner edges of the first surface 221 and the second surface 222, and the second outer surface 224 may connect to the outer edges of the first surface 221 and the second surface 222.

[0148] For example, a portion of the first surface 221 of the second basin stand 22 may be recessed toward the second surface 222 to form a first receiving space 225.

[0149] For example, the second washbasin holder 22 may be provided with a second clearance groove 226, which may pass through the first surface 221 and the second surface 222 of the second washbasin holder 22, and the opening of the second clearance groove 226 may extend to the second outer surface 224. The second clearance groove 226 may be spaced apart from the first receiving space 225.

[0150] For example, the second basin holder 22 may also be provided with a third receiving groove 2271 and a fourth receiving groove 2272 spaced apart. The openings of the third receiving groove 2271 and the fourth receiving groove 2272 may both be located on the second surface 222. The third receiving groove 2271 and the fourth receiving groove 2272 may both be spaced apart from the second clearance groove 226.

[0151] Please refer to the following: Figure 10B and Figure 11 , Figure 11 yes Figure 10B The diagram shows a cross-sectional view of the first basin stand 21 cut along EE.

[0152] In some embodiments, the second basin holder 22 may further be provided with a third extension hole 2281 and a fourth extension hole 2282 spaced apart. One end opening of the third extension hole 2281 may be located on the second surface 222, and the other end opening of the third extension hole 2281 may extend to the third receiving groove 2271. It is understood that the first extension hole 2181 may communicate with the third receiving groove 2271. One end opening of the fourth extension hole 2282 may be located on the second surface 222, and the other end opening of the fourth extension hole 2282 may extend to the fourth receiving groove 2272. It is understood that the fourth extension hole 2282 may communicate with the fourth receiving groove 2272.

[0153] For example, the second basin stand 22 may be provided with a second limiting portion 229, which may protrude from a portion of the second surface 222 in a direction away from the first surface 221. The second limiting portion 229 may be spaced apart from the second outer surface 224. The second limiting portion 229 may be an arc-shaped segment, and the second limiting portion 229 may be spaced apart from the third receiving groove 2271 and the fourth receiving groove 2272.

[0154] Please refer to the following: Figures 12A to 13A , Figure 12A yes Figure 2 The diagram shown is a partial structural schematic of the speaker 20 in some embodiments. Figure 12B yes Figure 12A The diagram shown is a partial structural representation of the speaker 20 from another angle. Figure 13A yes Figure 12A The diagram shows a cross-sectional view of a portion of the speaker 20 taken along the FF line. For example, Figure 12A The diagram mainly shows the assembly structure of the magnetic circuit assembly 23, the first basin frame 21, and the second basin frame 22.

[0155] In some embodiments, both the first frame 21 and the second frame 22 can be fixedly connected to the magnetic circuit assembly 23. The first frame 21 can be fixedly connected to the first magnetic conductive assembly 23B, for example, the first frame 21 can be fixedly connected to the second magnetic conductive element 235. In this case, at least a portion of the magnetic assembly 23A can be located inside the first frame 21. The first through hole 215 of the first frame 21 can be located outside the magnetic assembly 23A, that is, the first through hole 215 can be located on the side of the magnetic assembly 23A away from the central axis of the speaker 20.

[0156] In this embodiment, the second magnetic conductive element 235 can be integrally formed with the first frame 21 through methods such as in-mold injection molding. In this case, the second magnetic conductive element 235 can be embedded in the first frame 21. This simplifies the manufacturing process of the speaker 20, facilitates the assembly of the magnetic circuit assembly 23, and also ensures a more secure connection between the magnetic circuit assembly 23 and the first frame 21. It is understood that the second magnetic conductive element 235 can first be integrally formed with the first frame 21 through injection molding, and then the third magnetic element 233 of the magnetic assembly 23A can be fixed to the second magnetic conductive element 235. In other embodiments, the second magnetic conductive element 235 can also be fixed to the first frame 21 by means of bonding or other methods.

[0157] For example, the extension 2351 of the second magnetic conductor 235 can extend out of the first outer side 214 of the first basin stand 21 through the first through slot 2191, and a portion of the extension 2351 can be located within the first clearance slot 2192. The through hole 2352 of the extension 2351 can be located on the outside of the first basin stand 21, that is, the through hole 2352 of the extension 2351 can be located on the side of the first outer side 214 of the first basin stand 21 away from the first inner side 213.

[0158] In some embodiments, the second basin holder 22 may be located on the side of the magnetic assembly 23A facing away from the first magnetic conductive assembly 23B, and fixedly connected to the fourth magnetic conductive member 237. In this case, a portion of the fourth magnetic conductive member 237 may be located in the first receiving space 225 of the second basin holder 22.

[0159] In this embodiment, the fourth magnetic conductive element 237 can be integrally formed with the second frame 22 through methods such as in-mold injection molding. In this case, the fourth magnetic conductive element 237 can be embedded in the first frame 21. This simplifies the manufacturing process of the speaker 20, facilitates the assembly of the magnetic circuit assembly 23, and also ensures a more secure connection between the magnetic circuit assembly 23 and the first frame 21. It is understood that the fourth magnetic conductive element 237 can first be integrally formed with the second frame 22 through injection molding, and then the second magnetic element 232 and the third magnetic element 233 of the magnetic assembly 23A can be fixed to the fourth magnetic conductive element 237. In other embodiments, the fourth magnetic conductive element 237 can also be fixed to the second frame 22 by means of bonding or other methods.

[0160] Please refer to the following: Figure 12A and Figure 13B , Figure 13B yes Figure 12A The diagram shows a cross-sectional view of part of the loudspeaker 20 cut along G1-G1.

[0161] In some embodiments, a portion of the first extension hole 2181 of the first washbasin holder 21 may be located within the second clearance groove 226 of the second washbasin holder 22, and the end opening of the first extension hole 2181 away from the first receiving groove 2161 may be exposed on the second surface 222 of the second washbasin holder 22. A portion of the second extension hole 2182 of the first washbasin holder 21 may be located within the second clearance groove 226 of the second washbasin holder 22, and the end opening of the second extension hole 2182 away from the second receiving groove 2162 may be exposed on the second surface 222 of the second washbasin holder 22.

[0162] For example, the first basin stand 21 may also be fixedly connected to a third magnetic component 233 to enhance the connection stability between the magnetic circuit assembly 23 and the first basin stand 21.

[0163] Please see Figure 14 , Figure 14 yes Figure 12A The diagram shows a cross-sectional view of part of the loudspeaker 20 cut along G2-G2.

[0164] In some embodiments, the first basin stand 21 may be fixedly connected to the second basin stand 22. For example, the second surface 212 of the first basin stand 21 may be fixedly connected to the first surface 221 of the second basin stand 22. The first surface 221 of the second basin stand 22 may also be fixedly connected to a third magnetic element 233 to enhance the connection stability between the magnetic circuit assembly 23 and the second basin stand 22.

[0165] Please refer to the following: Figure 15A , Figure 15A yes Figure 2 The diagram shows a partial cross-sectional view of the loudspeaker 20 taken along section HH in some embodiments. For example, Figure 15A The main illustration shows the assembly structure of the first diaphragm 21, the second diaphragm 22, the magnetic circuit assembly 23, the first diaphragm 241, the first voice coil 242, the second diaphragm 251, the second voice coil 252, and the support 26.

[0166] For example, the first diaphragm 241 may include a vibrating portion 2411, a first folded ring portion 2412, a second folded ring portion 2413, a first fixing portion 2414, and a second fixing portion 2415. The first fixing portion 2414 surrounds the outer periphery of the first folded ring portion 2412 and is connected to the first folded ring portion 2412. The first folded ring portion 2412 surrounds the outer periphery of the vibrating portion 2411 and is connected to the vibrating portion 2411. The vibrating portion 2411 surrounds the outer periphery of the second folded ring portion 2413 and is connected to the second folded ring portion 2413. The second folded ring portion 2413 surrounds the outer periphery of the second fixing portion 2415 and is connected to the second fixing portion 2415. It is understood that the first folded ring portion 2412 may be connected between the first fixing portion 2414 and the vibrating portion 2411, and the second folded ring portion 2413 may be connected between the second fixing portion 2415 and the vibrating portion 2411. The first folded ring portion 2412 and the second folded ring portion 2413 can be deformable. For example, the first folded ring portion 2412 and the second folded ring portion 2413 can be a ring structure with an overall arc surface. The arc surface ring structure is easy to deform and stretch so that the vibrating portion 2411 can be displaced relative to the first fixed portion 2414 and the second fixed portion 2415 in the axial direction of the speaker 20.

[0167] For example, the first diaphragm 241 may be provided with a second through hole 2416. The second through hole 2416 may be located in the middle of the first diaphragm 241 and penetrate through the first diaphragm 241. The second fixing part 2415 may be provided around the second through hole 2416.

[0168] In some embodiments, the periphery of the first diaphragm 241 can be fixed to the basin frame 210. For example, the first fixing portion 2414 of the first diaphragm 241 can be fixedly connected to the first surface 211 of the first basin frame 2121. In some examples, the first fixing portion 2414 of the first diaphragm 241 can be provided with a steel ring or a copper ring, and the first diaphragm 241 can be fixed to the first surface 211 of the first basin frame 2121 by the steel ring or copper ring of the first fixing portion 2414. Exemplarily, the steel ring or copper ring of the first fixing portion 2414 can be arranged around the first limiting portion 217. It is understood that in this embodiment, the first fixing portion 2414 can be positioned by the first limiting portion 217, thereby facilitating the assembly of the first diaphragm 241.

[0169] For example, one end of the first voice coil 242 is fixedly connected to the first diaphragm 241. For instance, one end of the first voice coil 242 can be fixedly connected to the vibrating portion 2411 of the first diaphragm 241, and the other end of the first voice coil 242 (i.e., the end of the first voice coil 242 away from the first diaphragm 241) can be located in the first magnetic gap 20a of the magnetic circuit assembly 23. In this embodiment, when the first voice coil 242 is energized, it generates a force in the magnetic field of the magnetic circuit assembly 23, thereby driving the first diaphragm 241 to vibrate. The first diaphragm 241 then drives the air to vibrate, thus enabling the speaker 20 to produce sound. The first voice coil 242 can receive alternating signals and generate alternating forces in the magnetic field. The direction in which the first voice coil 242 drives the first diaphragm 241 to vibrate is along the axial direction of the first voice coil 242, which is the same as the axial direction of the speaker 20. The vibration direction of the first diaphragm 241 is also typically perpendicular to the diaphragm 241 itself.

[0170] In this embodiment, one end of the first voice coil 242 is fixedly connected to the vibrating part 2411 of the first diaphragm 241. When the first voice coil 242 is energized, it drives the vibrating part 2411 of the first diaphragm 241 to vibrate. By providing a first folded ring 2412 between the vibrating part 2411 of the first diaphragm 241 and the first fixed part 2414, and a second folded ring 2413 between the vibrating part 2411 and the second fixed part 2415, the first folded ring 2412 and the second folded ring 2413 are deformable, allowing the vibrating part 2411 to be displaced relative to the first fixed part 2414 and the second fixed part 2415 in the axial direction of the speaker 20. This avoids stress concentration and diaphragm cracking in the first diaphragm 241 due to tension caused by the vibrating part 2411 vibrating.

[0171] In some embodiments, along the axial direction of the speaker 20, the bracket 26 may be located between the first diaphragm 241 and the first magnetic conductive assembly 23B, and fixedly connect the first diaphragm 241 and the first magnetic conductive assembly 23B. Exemplarily, the bottom end of the bracket 26 may be located in the fixing groove 2342 of the first magnetic conductive member 234 to make the assembly structure more stable and accurate. One end of the bracket 26 may be fixedly connected to the second fixing portion 2415 of the first diaphragm 241. It is understood that the second fixing portion 2415 of the first diaphragm 241 can be fixedly connected to the first magnetic conductive member 234 through the bracket 26. The bracket 26 may also be used to support the first diaphragm 241.

[0172] For example, the bracket 26 can be generally annular. The bracket 26 may be provided with a third through hole 261 and a limiting groove 262. The third through hole 261 can pass through the bracket 26 along the axial direction of the speaker 20, and the limiting groove 262 can surround the third through hole 261 and be spaced apart from the third through hole 261.

[0173] The third through hole 261 is connected to the second through hole 2341 of the first magnetic conductor 234 and the second through hole 2416 of the first diaphragm 241, so that the first channel 2301 can be connected to the outside of the speaker 20 through the third through hole 261.

[0174] In this embodiment, the third through hole 261 of the bracket 26 can communicate with the second through hole 2416 of the first diaphragm 241, thereby allowing the first channel 2301 of the speaker 20 to communicate with the second through hole 2416. The first channel 2301 can communicate with the space on the side of the first diaphragm 241 facing away from the second diaphragm 251 through the second through hole 2416. The limiting groove 262 can face the first diaphragm 241. In some examples, the second fixing part 2415 of the first diaphragm 241 can be provided with a steel ring or a copper ring. The first diaphragm 241 can be fixed to the bracket 26 by the steel ring or copper ring of the second fixing part 2415, thereby allowing the first diaphragm 241 to be fixedly connected to the magnetic circuit assembly 23 via the bracket 26. Exemplarily, at least part of the steel ring or copper ring of the second fixing part 2415 can be located within the limiting groove 262 of the bracket 26. It is understood that in this embodiment, the second fixing part 2415 can be positioned by the limiting groove 262 of the bracket 26, so the assembly of the first diaphragm 241 is more convenient.

[0175] In this embodiment, the first channel 2301, the second through hole 2416, and the third through hole 261 are all formed by components of the speaker 20 itself. For example, the first channel 2301 can be formed by the first connecting hole 2311 of the first magnetic component 231, the second connecting hole 2341 of the first magnetic conductive component 234, and the third connecting hole 2361 of the third magnetic conductive component 236. The second through hole 2416 can be formed by the first diaphragm 241, and the third through hole 261 can be formed by the bracket 26. That is, the first channel 2301, the second through hole 2416, and the third through hole 261 can be integrated into the structure of the speaker 20 itself. In this way, the speaker 20 does not need to be provided with separate structural components to form the first channel 2301, the second through hole 2416, and the third through hole 261, which makes the structure and assembly of the speaker 20 simpler and facilitates the miniaturization of the speaker 20.

[0176] In some embodiments, at least a portion of the basin frame 210, a portion of the magnetic circuit assembly 23, the first diaphragm 241, and the support 26 can collectively enclose the first chamber 201. For example, the first basin frame 21, the second magnetic element 232, the third magnetic element 233, the first magnetic conductive assembly 23B, the fourth magnetic conductive element 237, the first diaphragm 241, and the support 26 can collectively enclose the first chamber 201. The first chamber 201 is spaced apart from the first channel 2301, the second through hole 2416, and the third through hole 261, meaning that there is no gas flow between the first chamber 201 and the first channel 2301, the second through hole 2416, and the third through hole 261.

[0177] For example, the first chamber 201 can be connected to the first through-hole 215 of the first frame 21, thereby connecting to the space on the side of the second diaphragm 251 facing away from the first diaphragm 241, that is, connecting to the outside of the speaker 20. It is understood that the first through-hole 215 can serve as a rear venting channel for the first diaphragm 241. In this way, gas can circulate between the first chamber 201 and the atmosphere to balance the air pressure within the first chamber 201.

[0178] In this embodiment, the first through-hole 215 can be formed by a component of the speaker 20 itself. For example, the first through-hole 215 can be formed by the first frame 21, meaning the first through-hole 215 can be integrated into the structure of the speaker 20 itself. This eliminates the need for a separate structural component to form the first through-hole 215, simplifying the structure of the speaker 20 and facilitating its miniaturization. Furthermore, since the first through-hole 215 is formed by the first frame 21, and can be located on the side of the first diaphragm 241 facing the second diaphragm 251, the first through-hole 215 does not occupy the area of ​​the first diaphragm 241, allowing the first diaphragm 241 to have a larger area, enabling the speaker 20 to achieve better low-frequency output.

[0179] In this embodiment, the opening at one end of the first through hole 215 can be located on the second surface 212 of the first frame 21, so that the sound waves generated on the side of the first diaphragm 241 facing the first chamber 201 can be diffused through the first through hole 215 to the side of the first diaphragm 241 facing the second diaphragm 251. It is understood that when the first diaphragm 241 vibrates, the sound waves generated on both sides of the first diaphragm 241 are out of phase. For example, the sound waves generated on the side of the first diaphragm 241 facing the first chamber 201 are out of phase with the sound waves generated on the side of the first diaphragm 241 facing away from the first chamber 201. In this embodiment, by setting the opening at one end of the first through hole 215 on the second surface 212 of the first frame 21, the sound waves generated on the side of the first diaphragm 241 facing the first chamber 201 are less likely to diffuse to the side of the first diaphragm 241 facing away from the second diaphragm 251, and interfere with the sound waves generated on the side of the first diaphragm 241 facing away from the first chamber 201. This helps to avoid the mutual cancellation of sound waves with opposite phases, which would cause an acoustic short circuit and thus affect the sound quality of the speaker 20.

[0180] In some other embodiments, the speaker 20 may not include the bracket 26, in which case a portion of the magnetic circuit assembly 23, the first diaphragm 241, and a portion of the frame 210 can jointly enclose the first chamber 201. For example, the first magnetic conductive assembly 23B, the second magnetic element 232, the third magnetic element 233, the second magnetic conductive assembly 23C, the first diaphragm 241, and the first frame 21 can jointly enclose the first chamber 201.

[0181] Please refer to the following: Figure 15A and Figure 15B , Figure 15B yes Figure 2 The speaker 20 shown is a schematic diagram of a partial cross-sectional structure cut along JJ in some embodiments.

[0182] In some embodiments, the periphery of the second diaphragm 251 may be fixed to the frame 210. For example, the fixing portion 2513 of the second diaphragm 251 may be fixedly connected to the second surface 222 of the second frame 22. Exemplarily, the second diaphragm 251 may include a vibrating portion 2511, a folded ring portion 2512, and a fixing portion 2513. The folded ring portion 2512 surrounds the outer periphery of the vibrating portion 2511 and is connected to the vibrating portion 2511, while the fixing portion 2513 surrounds the outer periphery of the folded ring portion 2512 and is connected to the folded ring portion 2512. The folded ring portion 2512 may be deformable, allowing the vibrating portion 2511 to be displaced relative to the fixing portion 2513 in the axial direction of the speaker 20.

[0183] For example, the fixing portion 2513 of the second diaphragm 251 may be provided with a steel ring or a copper ring, and the second diaphragm 251 can be fixed to the second surface 222 of the second basin frame 22 by the steel ring or copper ring of the fixing portion 2513. For example, the second limiting portion 229 of the second basin frame 22 may be provided around the steel ring or copper ring of the fixing portion 2513. It is understood that, in this embodiment, the fixing portion 2513 of the second diaphragm 251 can be positioned by the second limiting portion 229, thereby facilitating the assembly of the second diaphragm 251.

[0184] For example, one end of the second voice coil 252 is fixedly connected to the second diaphragm 251. For instance, one end of the second voice coil 252 can be fixedly connected to the vibrating part 2511 of the second diaphragm 251, and the other end of the second voice coil 252 (i.e., the end of the second voice coil 252 away from the second diaphragm 251) can be located in the second magnetic gap 20b. When the second voice coil 252 is energized, it generates a force in the magnetic field of the magnetic circuit assembly 23, thereby driving the second diaphragm 251 to vibrate. The second diaphragm 251 then drives the air to vibrate, thus enabling the speaker 20 to produce sound. The second voice coil 252 can receive alternating signals and generate alternating forces in the magnetic field. The direction in which the second voice coil 252 drives the second diaphragm 251 to vibrate is along the axial direction of the second voice coil 252, which is the same as the axial direction of the speaker 20. The vibration direction of the second diaphragm 251 is generally also perpendicular to the second diaphragm 251 itself.

[0185] In some embodiments, at least a portion of the frame 210, a portion of the magnetic circuit assembly 23, and the second diaphragm 251 can collectively enclose the second chamber 202. For example, the second frame 22, the first magnetic element 231, the second magnetic element 232, the first magnetic conductor 234, the second magnetic conductor assembly 23C, and the second diaphragm 251 can collectively enclose the second chamber 202. The second chamber 202 can communicate with the first through hole 2337 of the first magnetic conductor assembly 23B, thereby allowing the second chamber 202 to communicate with the first through hole 215 of the first frame 21 via the first channel 2301 and the second through hole 2416, thus communicating with the space on the side of the first diaphragm 241 facing away from the second diaphragm 251, i.e., communicating with the outside of the speaker 20. When the second diaphragm 251 vibrates, the sound waves generated by the second diaphragm 251 can propagate into the second chamber 202, the first channel 2301, and the second through hole 2416 to the side of the first diaphragm 241 facing away from the second diaphragm 251. It is understood that in this embodiment, the first channel 2301 can serve as the sound output channel of the second diaphragm 251. The gas diffused from the second through hole 2416 and the gas diffused from the first through hole 215 are less likely to interfere with each other, that is, the sound waves generated by the second diaphragm 251 and the sound waves generated by the first diaphragm 241 are less likely to interfere with each other, which is beneficial to improving the sound quality of the speaker 20.

[0186] For example, the second chamber 202 is spaced apart from the first chamber 201, meaning that there is no airflow between the second chamber 202 and the first chamber 201. In this way, the airflow in the first chamber 201 will not interfere with the airflow in the second chamber 202, thereby preventing the airflow in the first chamber 201 from affecting the propagation of sound waves in the second chamber 202, which is beneficial to improving the sound quality of the speaker 20.

[0187] In some embodiments, the first diaphragm 241 can be used to generate low-frequency sound waves, that is, the first diaphragm 241 can serve as a bass diaphragm. The second diaphragm 251 can be used to generate mid-frequency sound waves, that is, the second diaphragm 251 can serve as a mid-range diaphragm. It is understood that the vibration frequency of the second diaphragm 251 is higher than the vibration frequency of the first diaphragm 241. In this embodiment, the speaker 20 can generate low-frequency sound waves through the first diaphragm 241 and mid-frequency sound waves through the second diaphragm 251. Both the low-frequency sound waves generated by the first diaphragm 241 and the mid-frequency sound waves generated by the second diaphragm 251 can propagate to the side of the first diaphragm 241 facing away from the second diaphragm 251, so that the speaker 20 can simultaneously achieve bass and mid-range output. It is understood that in this embodiment, the frequency of the low-frequency sound waves is in the range of 20Hz to 2kHz, and the frequency of the mid-frequency sound waves is in the range of 2kHz to 6kHz.

[0188] In some embodiments, the diameter of the second diaphragm 251 is smaller than that of the first diaphragm 241. By setting the diameter of the second diaphragm 251 to be smaller, the vibrating mass of the second diaphragm 251 is smaller, which facilitates achieving a smaller vibration displacement and thus a larger vibration frequency. This is beneficial for improving midrange sound quality when the second diaphragm 251 is used as a midrange diaphragm. Furthermore, due to the smaller diameter of the second diaphragm 251, when the second diaphragm 251 is fixed to the second frame 22, the inner edge of the second frame 22 can be closer to the central axis of the speaker 20. In this case, the distance between the inner and outer edges of the second frame 22 is larger, thus allowing for a larger area of ​​the second surface 222 of the second frame 22. This allows the second surface 222 of the second frame 22 to be used for other structural components of the speaker 20, such as electrical connectors. This results in more efficient space utilization of the speaker 20, simplifying its structure and facilitating miniaturization.

[0189] In this embodiment, the first diaphragm 241 and the second diaphragm 251 can be located on opposite sides of the magnetic circuit assembly 23, which helps to reduce the radial dimension of the speaker 20, i.e., facilitates the miniaturization of the speaker 20. Furthermore, since the diameter of the first diaphragm 241 is larger than the diameter of the second diaphragm 251, a second through-hole 2416 can be provided in the first diaphragm 241 so that the second chamber 202 can communicate with the space on the side of the first diaphragm 241 opposite to the second diaphragm 251.

[0190] In this embodiment, by setting a first magnetic gap 20a and a second magnetic gap 20b that are spaced apart, compared to the scheme where the first voice coil 242 and the second voice coil 252 are set in the same magnetic gap, the magnetic fields in the first magnetic gap 20a and the second magnetic gap 20b in this embodiment are less likely to interfere with each other. Therefore, the first voice coil 242 located in the first magnetic gap 20a is not affected by the magnetic field of the second magnetic gap 20b, and the second voice coil 252 located in the second magnetic gap 20b is not affected by the magnetic field of the first magnetic gap 20a. Thus, when the first voice coil 242 drives the first diaphragm 241 to vibrate and the second voice coil 252 drives the second diaphragm 251 to vibrate, the first diaphragm 241 and the second diaphragm 251 will not interfere with each other, which helps to ensure the vibration effect of the first diaphragm 241 and the second diaphragm 251. Furthermore, both the first magnetic gap 20a and the second magnetic gap 20b can be set to be relatively narrow, which helps to increase the magnetic field strength within the first magnetic gap 20a and the second magnetic gap 20b. In this way, the driving force of the first voice coil 242 and the second voice coil 252 can be larger, which is beneficial to improving the vibration effect of the first diaphragm 241 and the second diaphragm 251, thereby improving the sensitivity of the loudspeaker 20.

[0191] In this embodiment, the magnetic circuit assembly 23 is provided with a first magnetic element 231, a second magnetic element 232, and a third magnetic element 233 spaced apart, such that the second magnetic element 232 can form a first magnetic gap 20a and a second magnetic gap 20b spaced apart with the first magnetic element 231 and the third magnetic element 233, respectively. Compared with the scheme of setting a magnetic conductor between two magnetic elements to separate the magnetic gaps, the magnetic field strength in the first magnetic gap 20a and the second magnetic gap 20b in this embodiment is larger, and mutual interference between the first magnetic gap 20a and the second magnetic gap 20b is less likely to occur, which is beneficial to improving the vibration effect of the first diaphragm 241 and the second diaphragm 251, thereby improving the sound quality of the speaker 20.

[0192] Please continue reading. Figure 15A and Figure 15B In some embodiments, the first damping member 271 may be disposed on the first frame 21 and cover the first through hole 215 of the first frame 21 and the through hole 2352 of the second magnetic conductor 235. In this embodiment, by providing the first damping member 271, impurities outside the speaker 20 can be prevented from entering the interior of the speaker 20 through the first through hole 215. For example, the first damping member 271 may be a mesh fabric. The first damping member 271 may be fixed to the first frame 21 by adhesive. For example, there may be two first damping members 271, with the two first damping members 271 corresponding to the two first through holes 215 of the first frame 21 and the two through holes 2352 of the second magnetic conductor 235, respectively.

[0193] In some embodiments, the first damping member 271 may also cover the through hole 2352 of the second magnetic conductor 235. This prevents dust, impurities, etc., from entering the other side of the through hole 2352 through the through hole 2352. In other embodiments, the first damping member 271 may not cover the through hole 2352. In this case, the second speaker 20 may further include a third damping member, which may be disposed on the second magnetic conductor 235 and cover the through hole 2352.

[0194] In some embodiments, the second damping member 272 may be disposed on the bracket 26 and cover the third through hole 261 of the bracket 26. In this embodiment, by providing the second damping member 272, on the one hand, impurities outside the speaker 20 can be prevented from entering the interior of the speaker 20 through the third through hole 261; on the other hand, the acoustic performance of the speaker 20 can be adjusted by adjusting the damping coefficient of the second damping member 272, thereby improving the sound quality of the speaker 20. For example, the second damping member 272 can be made of mesh fabric, and the damping coefficient of the second damping member 272 can be adjusted by changing different mesh fabrics. Exemplarily, the second damping member 272 can be fixed to the bracket 26 by adhesive.

[0195] Please refer to the following: Figure 16 and Figure 17 , Figure 16 yes Figure 2 The diagram shown is a partial structural schematic of the speaker 20 in some embodiments. Figure 17 yes Figure 16 The diagram shows a partial structural diagram of the speaker 20 cut along line KK.

[0196] In some embodiments, the first electrical connection assembly 281 may include a first electrical connector 2811 and a second electrical connector 2812. The first voice coil 242 can be electrically connected to an external power source via the first electrical connection assembly 281 to power the first voice coil 242. Exemplarily, the first electrical connection assembly 281 may include a first electrical connector 2811 and a second electrical connector 2812. One end of the first electrical connector 2811 may be located in the first receiving groove 2161 of the first basin stand 21, and the other end protrudes through a first extension hole 2181 for electrical connection to an external power source. One end of the second electrical connector 2812 may be located in the second receiving groove 2162 of the first basin stand 21, and the other end protrudes through a second extension hole 2182 for electrical connection to an external power source. Exemplarily, the second notch 2354 of the second magnetic conductor 235 may be used to avoid the first electrical connection assembly 281.

[0197] For example, the first voice coil 242 may have a first wiring portion 2421, which may be led out from the body of the first voice coil 242 and located outside the body of the first voice coil 242. There may be two first wiring portions 2421, one of which may be electrically connected to the first electrical connector 2811, and the other of which may be electrically connected to the second electrical connector 2812, so that current can form a loop between the first electrical connector 2811, the first voice coil 242, and the second electrical connector 2812 to energize the first voice coil 242.

[0198] Please refer to the following: Figure 18 and Figure 19 , Figure 18 yes Figure 2 The speaker 20 shown is a partial structural schematic diagram from another angle in some embodiments. Figure 19 yes Figure 18 The diagram shows a partial structural diagram of the loudspeaker 20 cut along line LL.

[0199] In some embodiments, the speaker 20 may further include a second electrical connection assembly 282. The second voice coil 252 can be electrically connected to an external power source via the second electrical connection assembly 282 to power the second voice coil 252. An exemplary second electrical connection assembly 282 may include a third electrical connector 2821 and a fourth electrical connector 2822. One end of the third electrical connector 2821 may be located in the third receiving groove 2271 of the second frame 22, and the other end may extend through the third extension hole 2281 for electrical connection to an external power source. One end of the fourth electrical connector 2822 may be located in the fourth receiving groove 2272 of the second frame 22, and the other end may extend through the fourth extension hole 2282 for electrical connection to an external power source. Exemplarily, the fifth notch 2371 of the fourth magnetic conductor 237 may be used to avoid the second electrical connection assembly 282.

[0200] For example, the second voice coil 252 may have a second wiring portion 2521, which may be led out from the body of the second voice coil 252 and located outside the body of the second voice coil 252. There may be two second wiring portions 2521, one of which may be electrically connected to the third electrical connector 2821, and the other of which may be electrically connected to the fourth electrical connector 2822, so that current can form a loop between the third electrical connector 2821, the second voice coil 252, and the fourth electrical connector 2822 to energize the second voice coil 252.

[0201] In some embodiments, the first electrical connection component 281 and the second electrical connection component 282 may be spaced apart to avoid mutual interference between the first electrical connection component 281 and the second electrical connection component 282, which would affect the electrical signals of the first voice coil 242 and the second voice coil 252, thereby affecting the vibration effect of the first diaphragm 241 and the second diaphragm 251.

[0202] In some embodiments, both the first electrical connection component 281 and the second electrical connection component 282 are spaced apart from the first through hole 215. It is understood that the first electrical connection component 281 and the second electrical connection component 282 are typically fixed to the flexible circuit board outside the speaker 20 by welding followed by applying adhesive. By spaced apart from the first through hole 215, the first through hole 215 can be prevented from being blocked during the adhesive application process, thus avoiding interference with the diffusion of gas within the first chamber 201.

[0203] It is understood that, in this embodiment, the first voice coil 242 can be electrically connected to an external power source via the first electrical connection component 281, thereby energizing the first voice coil 242; the second voice coil 252 can be electrically connected to an external power source via the second electrical connection component 282, thereby energizing the second voice coil 252. In some embodiments, the first voice coil 242 can be communicatively connected to a first circuit of the electronic device 100 via the first electrical connection component 281, and the second voice coil 252 can be communicatively connected to a second circuit of the electronic device 100 via the first electrical connection component 281. Thus, the electronic device 100 can control the vibration of the first diaphragm 241 via the first circuit and control the vibration of the second diaphragm 251 via the second circuit, thereby enabling the speaker 20 to achieve different acoustic effects. For example, the electronic device 100 can control the first diaphragm 241 and the second diaphragm 251 through the first circuit and the second circuit respectively, so that the first diaphragm 241 and the second diaphragm 251 vibrate in the same direction, thereby enhancing the loudness of the speaker 20; or, the electronic device 100 can use an algorithm to control the amplitude and phase of the first diaphragm 241 and the second diaphragm 251, so that the first diaphragm 241 and the second diaphragm 251 move in opposite directions, thereby enabling the speaker 20 to achieve a better sound leakage prevention effect.

[0204] In this embodiment, the other ends of the first electrical connector 2811, the second electrical connector 2812, the third electrical connector 2821, and the fourth electrical connector 2822 can all extend beyond the second surface 222 of the second frame 22 to connect with an external electrical connection structure of the speaker 20. It is understood that, in this embodiment, because the diameter of the second diaphragm 251 is small, the first electrical connector 281 and the second electrical connector 282 can utilize the space on the side of the second surface 222 of the second frame 22 facing away from the first frame 21 to connect to an external electrical connection structure of the speaker 20 (e.g., a flexible circuit board inside the electronic device 100). In this way, the first electrical connector 281 and the second electrical connector 282 can be arranged to make reasonable use of the space in the speaker 20, which is beneficial for the miniaturization of the speaker 20. For example, the first electrical connector 2811, and / or the second electrical connector 2812, and / or the third electrical connector 2821, and / or the fourth electrical connector 2822 can be pins. The speaker 20 can be connected to an external power source using a pin structure, which simplifies the assembly of the speaker 20 and saves space.

[0205] In this embodiment, the first voice coil 242 and the second voice coil 252 can be electrically connected to an external power source via the first electrical connection component 281 and the second electrical connection component 282, respectively. This allows the vibration states (including vibration frequency, vibration direction, amplitude, etc.) of the first and second voice coils 242 and 252 to be controlled independently. For example, the first diaphragm 241 can achieve low-frequency output, and the second diaphragm 251 can achieve mid-frequency output, enabling the speaker 20 to simultaneously achieve both bass and mid-frequency output. Furthermore, by independently adjusting the vibration states of the first and second diaphragms 241 and 251, the speaker 20 can simultaneously achieve better bass and mid-range effects, thereby improving the sound quality of the speaker 20.

[0206] Please refer to the following: Figure 20 and Figure 21 , Figure 20 yes Figure 2 The diagram shown is a structural schematic of the speaker 20 in some other embodiments. Figure 21 yes Figure 20 The speaker 20 shown is a partial exploded view in some embodiments.

[0207] In this embodiment, the loudspeaker 20 may include a frame 210, a magnetic circuit assembly 23, a first vibration assembly 24, a second vibration assembly 25, a first damping element 271, a fourth damping element 274, a fifth damping element 275, a first electrical connection assembly 281, a third electrical connection assembly 283, and a housing 29. The frame 210 may include a first frame 2121 and a second frame 22. The first vibration assembly 24 may include a first diaphragm 241 and a first voice coil 242. The second vibration assembly 25 may include a second diaphragm 251 and a second voice coil 252. It is understood that... Figure 21 The accompanying drawings below only schematically illustrate some of the components included in the speaker 20; the actual shape, size, location, and construction of these components are not subject to change. Figure 21 As well as the limitations of the accompanying figures below. Figure 20 and Figure 21 The speaker 20 shown may include most of the technical content of the previous embodiments. The following mainly describes the differences between the two, and the most common aspects of the two will not be repeated.

[0208] Please refer to the following: Figure 22 and Figure 23 , Figure 22 yes Figure 21 The diagram shown is a partial exploded view of the magnetic circuit assembly 23 in some embodiments. Figure 23 yes Figure 21 The diagram shows a partial cross-sectional view of the magnetic circuit assembly 23 cut along MM.

[0209] In this embodiment, the magnetic circuit assembly 23 may include a magnetic component 23A, a first magnetically conductive component 23B, and a second magnetically conductive component 23C. The magnetic component 23A may be fixedly connected to the first magnetically conductive component 23B and the second magnetically conductive component 23C, and the magnetic circuit assembly 23 may be located between the first magnetically conductive component 23B and the second magnetically conductive component 23C, that is, the first magnetically conductive component 23B and the second magnetically conductive component 23C are located on opposite sides of the magnetic component 23A.

[0210] For example, the magnetic component 23A may include a first magnetic element 231, a second magnetic element 232, and a third magnetic element 233. The structure and arrangement of the magnetic component 23A in this embodiment are similar to... Figure 5 The structure and arrangement of the magnetic component 23A shown are similar. The structure and arrangement of the magnetic component 23A in this embodiment can be found in [reference needed]. Figure 5 The structure and arrangement of the magnetic component 23A shown are described below. The differences of the magnetic component 23A in this embodiment will be mainly introduced below.

[0211] In this embodiment, the second magnetic conductor 235 may have a third notch 2355 and a fourth notch 2356. Both the third notch 2355 and the fourth notch 2356 can penetrate the second magnetic conductor 235 along the axial direction of the speaker 20, and can also extend to the second side surface 235b of the second magnetic conductor 235. For example, the second magnetic conductor 235 may also have a protrusion 2357, which can be formed by a portion of the inner wall of the fourth notch 2356 protruding away from the first side surface 235a. For example, the protrusion 2357 can divide the fourth notch 2356 into a first sub-notch 2356a and a second sub-notch 2356b.

[0212] For example, the number of third notches 2355 can be four, and the four third notches 2355 are spaced apart. In some examples, the four third notches 2355 can be symmetrically distributed relative to the central axis of the speaker 20. For example, a fourth notch 2356 can be located between two of the third notches 2355 and connect the two third notches 2355. In other embodiments, the number of third notches 2355 can also be one, two, three or more than four, and this application is not strictly limited in this regard. When the number of third notches 2355 is two, three or more than four, the multiple third notches 2355 can be spaced apart.

[0213] In this embodiment, the fourth magnetic conductor 237 may be provided with a fifth receiving groove 2375. The opening of the fifth receiving groove 2375 may be located on the third side surface 237a of the fourth magnetic conductor 237, and a portion of the opening of the fifth receiving groove 2375 may extend to the fourth side surface 237b of the fourth magnetic conductor 237. Exemplarily, the fifth receiving groove 2375 may include a first groove portion 2376 and a second groove portion 2377. The first groove portion 2376 may be disposed around the central axis of the speaker 20. The second groove portion 2377 communicates with the first groove portion 2376 and extends through the fourth side surface 237b of the fourth magnetic conductor 237.

[0214] For example, when projected along the axial direction of the speaker 20, on a plane perpendicular to the axial direction of the speaker 20, the projection of the second groove portion 2377 of the fifth receiving groove 2375 at least partially overlaps with the projection of the second notch.

[0215] Please refer to the following: Figure 24 and Figure 25 , Figure 24 yes Figure 21 The diagram shown is a structural schematic of the first basin stand 21 in some embodiments. Figure 25 yes Figure 24 The diagram shows the structure of the first pot stand 21 from another angle.

[0216] In this embodiment, in some embodiments, the first washbasin stand 21 may include a first surface 211, a second surface 212, and a first inner surface 213 and a first outer surface 214 connecting the first surface 211 and the second surface 212. The first surface 211 and the second surface 212 are arranged back-to-back. The first outer surface 214 may surround the second inner surface 213. It is understood that the first washbasin stand 21 in this embodiment may have a similar structure to the first washbasin stand 21 in the above embodiments. The basic design of the component structure of the first washbasin stand 21 in this embodiment, the design of the connection relationships between components, and the design of the connection relationships between components and other structures besides the components can all refer to the relevant solutions of the first washbasin stand 21 in the above embodiments, and will not be elaborated here. At the same time, it is permissible for the first washbasin stand 21 in this embodiment to differ slightly from the first washbasin stand 21 in the above embodiments in the detailed structure or positional arrangement of components. For example, the first washbasin stand 21 may not include the first through hole 215 of the first washbasin stand 21 in the above embodiments (see [link to previous embodiment]). Figure 8A The following text mainly explains the differences between the two.

[0217] Please refer to the following: Figures 24 to 26 , Figure 26 yes Figure 24 The first basin stand 21 shown is a schematic diagram of a partial cross-sectional structure cut along NN in some embodiments.

[0218] In this embodiment, the first basin stand 21 may be provided with a second through groove 2151. The opening of the second through groove 2151 may be located on the first inner side surface 213 of the first basin stand 21 and extend to the first surface 211 and the second surface 212.

[0219] For example, the number of second through slots 2151 can be four, and the four second through slots 2151 can be arranged around the central axis of the speaker 20. In some other embodiments, the number of second through slots 2151 can also be one, two, three or more than four, and this application does not strictly limit this. When the number of second through slots 2151 is two, three or more, the multiple second through slots 2151 can be arranged around the central axis of the speaker 20.

[0220] In this embodiment, the first basin stand 21 may include an extension 2152. The extension 2152 may protrude from a portion of the first outer side surface 214 of the first basin stand 21 in a direction away from the first inner side surface 213. The extension 2152 may have a through hole 2352 that extends through the extension 2152. For example, the through hole 2352 may extend through the extension 2152 along the axial direction of the speaker 20.

[0221] Please refer to the following: Figure 27 and Figure 28 , Figure 27 yes Figure 21 The diagram shown is a structural schematic of the second basin stand 22 in some embodiments. Figure 28 yes Figure 27 The diagram shows the structure of the second basin stand 22 from another angle.

[0222] The second basin stand 22 in this embodiment can have a similar structure to the second basin stand 22 in the above embodiments. The basic design of the component structure, the design of the connection relationships between components, and the design of the connection relationships between components and other structures besides the assemblies for the second basin stand 22 in this embodiment can all refer to the relevant solutions of the second basin stand 22 in the above embodiments, and will not be elaborated here. At the same time, it is permissible for the second basin stand 22 in this embodiment to differ slightly from the second basin stand 22 in the above embodiments in the detailed structure or positional arrangement of components. For example, the second basin stand 22 in this embodiment may not include the third receiving groove 2271, and / or the fourth receiving groove 2272, and / or the third extension hole 2281, and / or the fourth extension hole 2282 (see [reference]). Figures 10A to 11 The following text mainly explains the differences between the two.

[0223] In this embodiment, the second basin 22 may be provided with a third through groove 2291. The third through groove 2291 can pass through the second basin 22 along the axial direction of the speaker 20, that is, the third through groove 2291 can pass through the first surface 221 and the second surface 222 of the second basin 22.

[0224] For example, the number of third through slots 2291 can be four, and the four third through slots 2291 can be arranged around the central axis of the speaker 20. For example, the four third through slots 2291 can be arranged around the second limiting portion 229.

[0225] In some other embodiments, the number of third through slots 2291 may be one, two, three, or more than four, and this application does not impose a strict limitation on this. When the number of third through slots 2291 is two, three, or more than four, the multiple third through slots 2291 may be arranged around the central axis of the speaker 20.

[0226] In this embodiment, the second basin holder 22 may also be provided with a mounting groove 2292, the opening of which may be located on the first surface 221 of the second basin holder 22. The mounting groove 2292 may be arranged around the third through groove 2291. It is understood that the third through groove 2291 may penetrate through the bottom wall of the mounting groove 2292.

[0227] For example, there can be four mounting slots 2292, with each of the four mounting slots 2292 corresponding to one of the four third through slots 2291. That is, the four mounting slots 2292 can be arranged around the central axis of the speaker 20. For example, the four mounting slots 2292 can be arranged around the second limiting portion 229.

[0228] Please refer to the following: Figure 29 and Figure 30 , Figure 29 yes Figure 20 The diagram shown is a partial cross-sectional view of the speaker 20 cut along the PP section in some embodiments. Figure 30 yes Figure 21 The diagram shows the structure of the shell 29 at another angle.

[0229] In this embodiment, the first basin stand 21 can be fixedly connected to the second basin stand 22. For example, the second surface 212 of the first basin stand 21 can be fixedly connected to the first surface 221 of the second basin stand 22. At this time, the third notch 2355 and the fourth notch 2356 of the second magnetic conductor 235 (see [link to documentation]) Figure 22 All of these can be used to avoid the first basin stand 21. For example, the third notch 2355 of the second magnetic conductor 235 can be used to avoid the second through groove 2151 of the first basin stand 21.

[0230] For example, the second through slot 2151 of the first basin holder 21 and the third through slot 2291 of the second basin holder 22 are at least partially opposite and connected. It is understood that the four second through slots 2151 of the first basin holder 21 and the four third through slots 2291 of the second basin holder 22 can be connected one-to-one.

[0231] In this embodiment, at least a portion of the basin frame 210, a portion of the magnetic circuit assembly 23, the first diaphragm 241, and the support 26 can collectively enclose the first chamber 201. For example, the first basin frame 21, the second magnetic element 232, the third magnetic element 233, the first magnetic conductive assembly 23B, the third magnetic conductive element 236, the first diaphragm 241, and the support 26 can collectively enclose the first chamber 201.

[0232] For example, the first chamber 201 can connect to the second through slot 2151 of the first frame 21 and the third through slot 2291 of the second frame 22, thereby connecting to the space on the side of the second diaphragm 251 facing away from the first diaphragm 241. In this way, the sound waves generated by the vibration of the first diaphragm 241 can propagate through the second through slot 2151 and the third through slot 2291 to the space on the side of the second diaphragm 251 facing away from the first diaphragm 241. It is understood that the second through slot 2151 and the third through slot 2291 can together form the first through hole 215 of the speaker 20. The first through hole 215 can serve as the sound outlet channel of the first diaphragm 241.

[0233] For example, the third channel 2291 can be arranged around the second diaphragm 251. In this way, the sound waves generated by the vibration of the first diaphragm 241 can propagate through the second channel 2151 and the third channel 2291 to the side of the second diaphragm 251 facing away from the first diaphragm 241. It is understood that, in the embodiments of the application, because the diameter of the second diaphragm 251 is relatively small, the third channel 2291 can be arranged around the second diaphragm 251 so that the third channel 2291 can make reasonable use of the space on the second frame 22 for arrangement, thereby facilitating the miniaturization of the speaker 20.

[0234] In this embodiment, the second through slot 2151 and the third through slot 2291 can be formed by components of the speaker 20 itself. For example, the second through slot 2151 can be formed by the first frame 21, and the third through slot 2291 can be formed by the second frame 22. That is, the first through hole 215 can be integrated into the structure of the speaker 20 itself. In this way, the speaker 20 does not need to have additional separate structural components to form the first through hole 215 (including the second through slot 2151 and the third through slot 2291), making the structure of the speaker 20 simpler and facilitating the miniaturization of the speaker 20. Furthermore, since the second through slot 2151 can be formed by the first frame 21 and the third through slot 2291 can be formed by the second frame 22, and the first through hole 215 (including the second through slot 2151 and the third through slot 2291) can be located on the side of the first diaphragm 241 facing the second diaphragm 251, the first through hole 215 (including the second through slot 2151 and the third through slot 2291) will not occupy the area of ​​the first diaphragm 241, so that the first diaphragm 241 can have a larger area, and the speaker 20 can achieve better low-frequency output.

[0235] In some other embodiments, the speaker 20 may not include the bracket 26, in which case a portion of the magnetic circuit assembly 23, the first diaphragm 241, and a portion of the frame 210 can collectively enclose the first chamber 201. For example, the first magnetic conductive assembly 23B, the second magnetic element 232, the third magnetic element 233, the second magnetic conductive assembly 23C, the first diaphragm 241, and the first frame 21 can collectively enclose the first chamber 201.

[0236] In this embodiment, at least a portion of the frame 210, at least a portion of the magnetic circuit assembly 23, and the second diaphragm 251 can collectively enclose the second chamber 202. For example, the second frame 22, the first magnetic element 231, the second magnetic element 232, the first magnetic conductive assembly 23B, the second magnetic conductive assembly 23C, and the second diaphragm 251 can collectively enclose the second chamber 202. The second chamber 202 can communicate with the first through hole 2337 of the first magnetic conductive element 234, thereby allowing the second chamber 202 to communicate with the outside of the speaker 20 through the first channel 2301 and the third through hole 261. In this way, gas can circulate between the second chamber 202 and the atmosphere to balance the air pressure inside the second chamber 202. It is understood that the first channel 2301 and the third through hole 261 can serve as a rear venting channel for the second diaphragm 251.

[0237] In this embodiment, the gas in the second chamber 202 can propagate through the first channel 2301 and the third through hole 261 to the side of the first diaphragm 241 facing away from the second diaphragm 251, while the gas in the first chamber 201 can propagate through the second through groove 2151 and the third through groove 2291 to the side of the second diaphragm 251 facing away from the first diaphragm 241. Thus, the gas diffused from the first channel 2301 and the gas diffused from the third through groove 2291 are less likely to interfere with each other; that is, the sound waves generated by the second diaphragm 251 and the sound waves generated by the first diaphragm 241 are less likely to interfere with each other, thereby improving the sound quality of the speaker 20.

[0238] For example, the second chamber 202, the first channel 2301, and the third through hole 261 are all spaced apart from the first chamber 201. In this way, the airflow in the second chamber 202, the first channel 2301, and the third through hole 261 will not interfere with the airflow in the first chamber 201, thereby preventing the airflow in the second chamber 202 from affecting the propagation of sound waves in the first chamber 201, which is beneficial to improving the sound quality of the speaker 20.

[0239] In this embodiment, the first diaphragm 241 can be used to generate low-frequency sound waves, that is, the first diaphragm 241 can be a bass diaphragm. The second diaphragm 251 can be used to generate mid-high frequency sound waves, that is, the second diaphragm 251 can be a mid-high frequency diaphragm. It is understood that the vibration frequency of the second diaphragm 251 is greater than the vibration frequency of the first diaphragm 241. In this embodiment, the speaker 20 can generate low-frequency sound waves through the first diaphragm 241 and mid-high frequency sound waves through the second diaphragm 251. Both the low-frequency sound waves generated by the first diaphragm 241 and the mid-high frequency sound waves generated by the second diaphragm 251 can propagate to the side of the second diaphragm 251 facing away from the first diaphragm 241, so that the speaker 20 can simultaneously achieve bass, mid-high, and treble output. It is understood that in this embodiment, the frequency of the low-frequency sound waves is in the range of 20Hz to 2kHz, the frequency of the mid-frequency sound waves is in the range of 2kHz to 6kHz, and the frequency of the high-frequency sound waves is greater than 6kHz. In some other embodiments, the first diaphragm 241 can be used to generate low-to-mid frequency sound waves, that is, the first diaphragm 241 can be used as a low-to-mid frequency diaphragm, and the second diaphragm 251 can generate high-frequency sound waves, that is, the second diaphragm 251 can be used as a high-frequency diaphragm.

[0240] In some embodiments, the diameter of the second diaphragm 251 is smaller than that of the first diaphragm 241. By setting the diameter of the second diaphragm 251 to be smaller, the vibrating mass of the second diaphragm 251 is smaller, which facilitates a smaller vibration displacement and thus a larger vibration frequency. Therefore, when the second diaphragm 251 is used as a mid-high frequency diaphragm, it helps to improve the mid-high frequency sound quality. Furthermore, because the diameter of the second diaphragm 251 is smaller, when the second diaphragm 251 is fixed to the second frame 22, the inner edge of the second frame 22 can be closer to the central axis of the speaker 20. In this case, the distance between the inner and outer edges of the second frame 22 is larger, thus allowing for a larger area of ​​the second surface 222 of the second frame 22. This allows the second surface 222 of the second frame 22 to be used for other structural components of the speaker 20, such as electrical connectors, making more efficient use of space in the speaker 20, simplifying its structure, and facilitating miniaturization.

[0241] In this embodiment, the housing 29 can be fixedly connected to the basin stand 210. Exemplarily, the housing 29 can be located on the side of the first diaphragm 241 facing away from the second diaphragm 251, and is fixedly connected to the first fixing part 2414 and the second fixing part 2415 of the first diaphragm 241. It is understood that the housing 29 can be fixedly connected to the first basin stand 21 via the first diaphragm 241. Exemplarily, the housing 29 and the first diaphragm 241 can together enclose the third chamber 203.

[0242] For example, the housing 29 may include a first housing portion 291 and a second housing portion 292, the second housing portion 292 may surround the outer periphery of the first housing portion 291 and be connected to the first housing portion 291. The first housing portion 291 may be recessed relative to the second housing portion 292, for example, the first housing portion 291 may be recessed relative to the second housing portion 292 toward the first diaphragm 241, so that the first housing portion 291 may be located on the side of the second housing portion 292 close to the first diaphragm 241.

[0243] For example, the first shell portion 291 of the housing 29 can be fixedly connected to the first fixing portion 2414 of the first diaphragm 241. The periphery of the second shell portion 292 of the housing 29 can be fixedly connected to the second fixing portion 2415 of the second diaphragm 251.

[0244] For example, the first shell portion 291 of the housing 29 may be provided with a fifth through hole 2911. The fifth through hole 2911 may connect to the third through hole 261 of the bracket 26, thereby connecting to the second chamber 202. In this way, the gas in the second chamber 202 can be propagated to the outside of the speaker 20 through the first channel 2301, the third through hole 261 and the fifth through hole 2911.

[0245] For example, the second shell portion 292 of the housing 29 may be provided with a sixth through hole 2921, which can connect the third chamber 203 with the outside of the speaker 20, so that the gas in the third chamber 203 can flow to the outside of the speaker 20 through the sixth through hole 2921 to balance the air pressure in the third chamber 203.

[0246] In this embodiment, the first damping element 271 can be disposed on the second frame 22 and cover the third through groove 2291 of the second frame 22. In this embodiment, by providing the first damping element 271, on the one hand, it can prevent impurities outside the speaker 20 from entering the interior of the speaker 20 through the third through groove 2291; on the other hand, by adjusting the damping coefficient of the first damping element 271, the acoustic performance of the speaker 20 can be adjusted, thereby improving the sound quality of the speaker 20. For example, the first damping element 271 can be made of mesh fabric, and the damping coefficient of the first damping element 271 can be adjusted by changing different mesh fabrics. For example, the first damping element 271 can be fixed to the second frame 22 by adhesive. For example, the number of first damping elements 271 can be four, and the four first damping elements 271 correspond to the four third through grooves 2291 of the second frame 22 respectively.

[0247] In some embodiments, the fourth damping member 274 may be disposed on the housing 29 and cover the fifth through hole 2911 of the housing 29. In this embodiment, by providing the fourth damping member 274, impurities and other external objects of the speaker 20 can be prevented from entering the interior of the speaker 20 through the fifth through hole 2911.

[0248] In this embodiment, the fourth damping element 274 can be made of mesh fabric, and the fourth damping element 274 can be fixed to the housing 29 by adhesive. It is understood that in this embodiment, the mesh fabric with different densities can be provided according to the working state of the first diaphragm 241 and the second diaphragm 251. For example, when the first diaphragm 241 is used to generate low-frequency sound waves and the second diaphragm 251 is used to generate mid-to-high-frequency sound waves, a sparser mesh fabric can be provided, allowing the gas in the second chamber 202 to propagate to the outside of the speaker 20 through the first channel 2301, the second through hole 2416, and the fifth through hole 2911, balancing with the external air pressure. For example, when the first diaphragm 241 is used to generate mid-to-low-frequency sound waves and the second diaphragm 251 is used to generate high-frequency sound waves, a denser mesh fabric can be provided to largely block impurities from the outside of the speaker 20 from entering the interior of the speaker 20 through the fifth through hole 2911.

[0249] Please see Figure 31 , Figure 31 yes Figure 21 The diagram shows the structure of the third electrical connection component 283 in some embodiments.

[0250] In this embodiment, the third electrical connection component 283 may include a first portion 2831 and a second portion 2832. One end of the second portion 2832 may be connected to the first portion 2831, and the plane containing the first portion 2831 intersects the plane containing the second portion 2832. For example, the plane containing the first portion 2831 may be perpendicular to the plane containing the second portion 2832. In this embodiment, the third electrical connection component 283 may be a flexible circuit board.

[0251] For example, the first portion 2831 may include an arc-shaped portion 2833 and an extension portion 2152, the extension portion 2152 being connected between the arc-shaped portion 2833 and the second portion 2832. For example, the extension portion 2152 may have a first through hole 2835 and a second through hole 2836 spaced apart. Both the first through hole 2835 and the second through hole 2836 penetrate the extension portion 2152.

[0252] Please refer to the following: Figure 31 and Figure 32 , Figure 32 yes Figure 20 The speaker 20 shown is a partial structural diagram cut along QQ in some embodiments.

[0253] In this embodiment, a portion of the third electrical connection assembly 283 may be located in the fifth receiving groove 2375 of the fourth magnetic conductor 237. Exemplarily, at least a portion of the first portion 2831 may be located in the first groove portion 2376 of the fifth receiving groove 2375, in which case the arcuate portion 2833 of the first portion 2831 may be disposed around the second voice coil 252. Exemplarily, the extension portion 2152 may be located in the second groove portion 2377 of the fifth receiving groove 2375, with another portion extending beyond the outer side of the frame 210 to the side of the first diaphragm 241 facing away from the second diaphragm 251.

[0254] In this embodiment, the two terminals 2521 of the second voice coil 252 can be electrically connected to the extension 2152 of the third electrical connection assembly 283. For example, the extension 2152 may have two spaced-apart conductive structures for electrically connecting to the two terminals 2521 of the second voice coil 252.

[0255] In this embodiment, the first electrical connection component 281 is electrically connected to the third electrical connection component 283, thereby allowing the first voice coil 242 to be electrically connected to the third electrical connection component 283 via the first electrical connection component 281. For example, the first electrical connector 2811 of the first electrical connection component 281 can extend out of the second surface 222 of the second basket 22 through the first through hole 2835, and the second electrical connector 2812 can extend out of the second surface 222 of the second basket 22 through the second through hole 2836.

[0256] In this embodiment, the third electrical connection component 283 can be electrically connected to a power source outside the speaker 20, so that both the first voice coil 242 and the second voice coil 252 can be electrically connected to the external power source through the third electrical connection component 283, thereby energizing the first voice coil 242 and the second voice coil 252. For example, one end of the second portion 2832 of the third electrical connection component 283 can be connected to the first portion 2831, and the other end can extend to the side of the first diaphragm 241 facing away from the second diaphragm 251, to facilitate electrical connection to the external power source. It is understood that when the speaker 20 is installed in the electronic device 100 and the first diaphragm 241 faces the internal power source of the electronic device 100, by setting the other end of the third electrical connection component 283 to extend to the side of the first diaphragm 241 facing away from the second diaphragm 251, the third electrical connection component 283 can be electrically connected to the power source on the side of the first diaphragm 241 facing away from the second diaphragm 251.

[0257] In this embodiment, the fifth damping element 275 can be disposed on the first basin stand 21 and cover the through hole 2352 of the first basin stand 21. In this way, dust, impurities, etc. on one side of the through hole 2352 can be prevented from entering the other side of the through hole 2352 through the through hole 2352.

[0258] Please see Figure 33 , Figure 33 This is a comparison graph of sound wave distortion under different conditions. The horizontal axis represents frequency (in Hz), and the vertical axis represents sound pressure level (in decibels, dB). Figure 33 (a) in the figure mainly shows the normal distortion of the sound wave when the voltage is 0.1V. Figure 33 (b) in the figure mainly shows the distortion of mid-frequency sound waves based on low-frequency amplitude at a voltage of 0.1V.

[0259] When speaker 20 emits sound, the sound wave amplitude is larger in the low-frequency range and smaller in the mid-to-high frequency range. In traditional single-diaphragm speakers, low-frequency and mid-to-high frequency signals are emitted simultaneously, introducing significant nonlinear distortion into the mid-frequency sound waves based on the low-frequency amplitude. For example, if a 100Hz signal and a 5000Hz signal are emitted simultaneously, the 100Hz signal has a larger amplitude, while the 5000Hz signal has a smaller amplitude. The 5000Hz signal emitting sound within the larger amplitude of the 100Hz signal introduces significant nonlinear distortion. Figure 33 As shown, simultaneous sound generation of large and small amplitudes can easily cause mid-frequency distortion on the basis of low-frequency amplitude, and the distortion is relatively large.

[0260] Please refer to the following: Figure 34 , Figure 34 This is a comparison diagram of the intermodulation distortion curves of the loudspeaker 20 provided in this application and a conventional single-diaphragm loudspeaker.

[0261] When electronic device 100 is operating, its power supply can provide electrical signals to speaker 20. Typically, an electrical signal can contain multiple signals of different frequencies. In traditional single-diaphragm speakers, the simultaneous emission of multiple signals of different frequencies causes intermodulation distortion. Intermodulation distortion (IMD) is a non-linear distortion phenomenon that occurs when multiple signals of different frequencies pass through speaker 20, and these signals modulate each other, generating new frequency components, thus causing signal distortion.

[0262] like Figure 34 As shown, Figure 34 The intermodulation distortion in (b) and (c) is less than that in the original text. Figure 34 Intermodulation distortion in (a). The loudspeaker 20 of this embodiment includes a first diaphragm 241 and a second diaphragm 251, wherein the first diaphragm 241 is used to realize low frequency output and the second diaphragm 251 is used to realize mid frequency output, and the low frequency and mid frequency bands can be adjusted independently to achieve better sound resolution in the low frequency and mid frequency parts, making the low frequency sound quality more delicate and the mid frequency sound quality distortion reduced, thereby improving the sound quality of the loudspeaker 20 and the electronic device 100.

[0263] Please refer to the following: Figure 35 and Figure 36 , Figure 35 This is a comparison graph of the frequency response curves of the loudspeaker 20 provided in this application and a conventional single-diaphragm loudspeaker. Figure 36 This is a comparison graph of the frequency response curves of the speaker 20 provided in this application and a conventional single-diaphragm speaker. For example, Figure 35 Mainly showed Figure 15A The diagram shows a comparison of the frequency response curves of loudspeaker 20 and a traditional single-diaphragm loudspeaker. Figure 36 Mainly showed Figure 29 The diagram shows a comparison of the frequency response curves of loudspeaker 20 and a conventional single-diaphragm loudspeaker. Figure 35 and Figure 36 In the diagram, the solid line represents the frequency response curve of the loudspeaker 20 provided in this application, and the dashed line represents the frequency response curve of a conventional single-diaphragm loudspeaker.

[0264] like Figure 35 As shown, compared to traditional single-diaphragm loudspeakers, the first diaphragm 241 of the loudspeaker 20 provided in this application embodiment can be used as a bass diaphragm, and the second diaphragm 251 can be used as a midrange diaphragm. Furthermore, the low-frequency and mid-frequency bands can be adjusted independently, thereby enabling the frequency response curve of the loudspeaker 20 to be more delicate in the low-frequency range and flatter in the mid-frequency range, which is beneficial to improving the sound quality of the loudspeaker 20.

[0265] like Figure 36 As shown, compared to traditional single-diaphragm loudspeakers, the first diaphragm 241 of the loudspeaker 20 provided in the application embodiment can be used as a bass diaphragm, and the second diaphragm 251 can be used as a mid-high frequency diaphragm. Furthermore, the low-frequency and mid-high frequency bands can be adjusted independently, thereby enabling the frequency response curve of the loudspeaker 20 to be more delicate in the low-frequency range, flatter in the mid-frequency range, and reduced peaks and valleys in the high-frequency range, which is beneficial to improving the sound quality of the loudspeaker 20.

[0266] The above description, in conjunction with the accompanying drawings, introduced the specific structure of the speaker 20. The following description, in conjunction with the accompanying drawings, will further introduce the electronic device 100 including the speaker 20.

[0267] Please refer to the following: Figure 37 , Figure 37 yes Figure 1 The illustrated electronic device 100 is a schematic cross-sectional view in some embodiments. Exemplary, Figure 37 The electronic device 100 shown may include the above. Figure 15A The speaker 20 shown.

[0268] In some embodiments, the speaker 20 may be mounted on the housing 10 of the electronic device 100. For example, the housing 10 of the electronic device 100 may have an inner cavity 11, and the speaker 20 may be mounted on the inner cavity 11 of the housing 10. For instance, the electronic device 100 may be headphones, the earpiece of the headphones may have an inner cavity, and the speaker 20 may be mounted on the inner cavity of the earpiece.

[0269] In some embodiments, the speaker 20 may be connected to the inner wall of the housing 10 of the electronic device 100 to separate the inner cavity 11 of the housing 10 into a front cavity 111 and a rear cavity 112. For example, the outer surface of the speaker 20 may be connected to the inner wall of the housing 10 by means of adhesive or the like.

[0270] For example, the sound outlet 101 of the electronic device 100 can connect the front cavity 111 of the housing 10 with the outside of the housing 10, so that the sound emitted by the speaker 20 can be transmitted to the outside of the electronic device 100 through the front cavity 111 and the sound outlet 101.

[0271] In this embodiment, the front cavity 111 of the electronic device 100 can be located on the side of the first diaphragm 241 facing away from the first chamber 201. Sound waves generated by the first diaphragm 241 can propagate through the front cavity and the sound outlet to the outside of the electronic device 100 for reception by the user. For example, the third through-hole 261 of the speaker 20 can connect to the front cavity 111 of the housing 10, thereby allowing the second chamber 202 of the speaker 20 to connect to the front cavity 111 of the housing 10 via the first channel 2301 and the third through-hole 261. In this way, sound waves generated by the second diaphragm 251 can propagate through the first channel 2301 and the third through-hole 261 to the front cavity 111 of the electronic device 100, and then exit the electronic device 100 through the sound outlet 101 for reception by the user. Figure 37 The direction of gas flow inside the electronic device 100 is indicated by a dashed arrow.

[0272] In this embodiment, the first diaphragm 241 can generate low-frequency sound waves, and the second diaphragm 251 can generate mid-frequency sound waves. Both the low-frequency sound waves generated by the first diaphragm 241 and the mid-frequency sound waves generated by the second diaphragm 251 can be propagated to the outside of the electronic device 100 through the sound outlet, so that the electronic device 100 can realize low-frequency output and mid-frequency output.

[0273] In this embodiment, the first through hole 215 of the speaker 20 can connect to the rear cavity 112 of the housing 10, so that the first chamber 201 of the speaker 20 can connect to the rear cavity 112 of the housing 10 through the first through hole 215. In this way, the gas in the first chamber 201 of the speaker 20 can flow to the rear cavity 112 of the electronic device 100 through the first through hole 215, thereby achieving pressure balance in the first chamber 201.

[0274] In this embodiment, the gas in the first chamber 201 can flow to the rear chamber 112 of the electronic device 100 through the first through hole 215, while the gas in the second chamber 202 can flow to the front chamber 111 of the electronic device 100 through the first channel 2301 and the third through hole 261, thereby avoiding mutual interference between the gas in the first chamber 201 and the gas in the second chamber 202.

[0275] In this embodiment, the electronic device 100 may further include a tweeter 90, which generates high-frequency sound waves. It is understood that the sound wave frequency generated by the tweeter 90 in this embodiment may be greater than 6kHz. The tweeter 90 may be housed in the front cavity 111 of the electronic device 100. The sound emitted by the tweeter 90 may propagate to the outside of the electronic device 100 through the sound outlet 101. The tweeter 90 can generate high-frequency sound waves to achieve high-frequency output from the electronic device 100. In some examples, the tweeter 90 is a high-frequency speaker.

[0276] It is understandable that, such as Figure 35 As shown, in this embodiment, the speaker 20 and the tweeter 90 can work simultaneously, so that the electronic device 100 can simultaneously achieve low-frequency, mid-frequency and high-frequency output. Furthermore, the electronic device 100 provided in this application embodiment can be independently adjusted in the low-frequency, mid-frequency bands and the high-frequency unit, thereby enabling the frequency response curve of the electronic device 100 to be more delicate in the low-frequency band, flatter in the mid-frequency band, and reduced in the high-frequency band peaks and valleys, which is beneficial to improving the sound quality of the electronic device 100.

[0277] Please see Figure 38 , Figure 38 yes Figure 1 The illustrated electronic device 100 is shown in another cross-sectional structural diagram in some embodiments. Exemplary, Figure 38 The electronic device 100 shown may include the above. Figure 15A The speaker 20 shown.

[0278] In this embodiment, the front cavity 111 and the rear cavity 112 of the electronic device 100 can be connected through the through hole 2352 of the speaker 20, thereby balancing the air pressure in the front cavity 111 and preventing excessive pressure in the front cavity 111 from compressing the user's ear canal and affecting the user experience.

[0279] Please refer to the following: Figure 39 , Figure 39 yes Figure 1 The illustrated electronic device 100 is a schematic cross-sectional view in some other embodiments. Exemplary, Figure 39 The electronic device 100 shown may include the above. Figure 29 The speaker 20 shown.

[0280] In some embodiments, the speaker 20 may be mounted on the housing 10 of the electronic device 100. For example, the housing 10 of the electronic device 100 may have an inner cavity 11, and the speaker 20 may be mounted on the inner cavity 11 of the housing 10. For instance, the electronic device 100 may be headphones, the earpiece of the headphones may have an inner cavity, and the speaker 20 may be mounted on the inner cavity of the earpiece.

[0281] In some embodiments, the speaker 20 may be connected to the inner wall of the housing 10 of the electronic device 100 to separate the inner cavity 11 of the housing 10 into a front cavity 111 and a rear cavity 112. For example, the outer surface of the speaker 20 may be connected to the inner wall of the housing 10 by means of adhesive or the like.

[0282] For example, the sound outlet 101 of the electronic device 100 can connect the front cavity 111 of the housing 10 with the outside of the housing 10, so that the sound emitted by the speaker 20 can be transmitted to the outside of the electronic device 100 through the front cavity 111 and the sound outlet 101.

[0283] In this embodiment, the front cavity 111 of the electronic device 100 can be located on the side of the second diaphragm 251 facing away from the second chamber 202. Sound waves generated by the second diaphragm 251 can propagate through the front cavity 111 and the sound outlet 101 to the outside of the electronic device 100 for reception by the user. For example, the third through slot 2291 of the speaker 20 can connect to the front cavity 111, so that the first chamber 201 of the speaker 20 can connect to the front cavity 111 through the second through slot 2151 and the third through slot 2291 (i.e., the first through hole 215). Thus, sound waves generated by the first diaphragm 241 can propagate through the third through slot 2291 to the front cavity 111, and then exit the electronic device 100 through the sound outlet 101 for reception by the user. Figure 39 The direction of gas flow inside the electronic device 100 is indicated by a dashed arrow.

[0284] In this embodiment, the first diaphragm 241 can generate low-frequency sound waves, and the second diaphragm 251 can generate mid-to-high-frequency sound waves. Both the low-frequency sound waves generated by the first diaphragm 241 and the mid-to-high-frequency sound waves generated by the second diaphragm 251 can be propagated to the outside of the electronic device 100 through the sound outlet 101, thereby enabling the electronic device 100 to achieve low-frequency, mid-frequency, and high-frequency outputs, thereby improving the sound quality of the electronic device 100.

[0285] In other examples, the first diaphragm 241 can also generate low-to-mid frequency sound waves, and the second diaphragm 251 can generate high-frequency sound waves. Both the low-to-mid frequency sound waves generated by the first diaphragm 241 and the high-frequency sound waves generated by the second diaphragm 251 can be propagated to the outside of the electronic device 100 through the sound outlet 101, thereby enabling the electronic device 100 to achieve low-frequency, mid-frequency, and high-frequency outputs, thereby improving the sound quality of the electronic device 100.

[0286] In this embodiment, the fifth through-hole 2911 of the speaker 20 can connect to the rear cavity of the housing 10, so that the second chamber 202 of the speaker 20 can connect to the rear cavity through the first channel 2301, the third through-hole 261, and the fifth through-hole 2911. In this way, the gas in the second chamber 202 can propagate to the rear cavity 112 through the first channel 2301, the third through-hole 261, and the fifth through-hole 2911 to achieve pressure balance within the second chamber 202. The third chamber 203 can connect to the rear cavity 112 of the electronic device 100 through the sixth through-hole 2921 to balance the pressure within the third chamber 203.

[0287] In this embodiment, the gas in the second chamber 202 can flow to the rear chamber 112 through the fifth through hole 2911, while the gas in the first chamber 201 can flow to the front chamber through the third through groove 2291, thereby avoiding mutual interference between the gas in the first chamber 201 and the gas in the second chamber 202.

[0288] It is understood that in this embodiment, the inner diameter of the front cavity 111 is smaller near the sound outlet 101, that is, the space of the front cavity 111 is smaller. In this embodiment, the third through groove 2291 is formed by the structure of the second frame 22 itself, which is conducive to the miniaturization of the speaker 20, so that the speaker 20 can be better accommodated in the inner cavity 11.

[0289] Please see Figure 40 , Figure 40 yes Figure 1 The illustrated electronic device 100 is shown in another cross-sectional structural diagram in some other embodiments. Exemplary, Figure 40 The electronic device 100 shown may include the above. Figure 29 The speaker 20 shown.

[0290] In this embodiment, the front cavity 111 and the rear cavity 112 of the electronic device 100 can be connected through the through hole 2352 of the speaker 20, thereby balancing the air pressure in the front cavity 111 and preventing excessive pressure in the front cavity 111 from compressing the user's ear canal and affecting the user experience.

[0291] It is understood that, without conflict, the features in the embodiments of this application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of this application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0292] It is understood that all the above figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between the components in the figures are not intended to limit the actual product of this application.

[0293] The above are merely some embodiments of this application, and the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A loudspeaker (20), characterized in that, The device includes a basin frame (210), a magnetic circuit assembly (23), a first diaphragm (241), and a second diaphragm (251). The magnetic circuit assembly (23) is fixedly connected to the basin frame (210). The peripheries of the first diaphragm (241) and the second diaphragm (251) are both fixed to the basin frame (210), and the first diaphragm (241) and the second diaphragm (251) are located on opposite sides of the magnetic circuit assembly (23). At least a portion of the basin frame (210), a portion of the magnetic circuit assembly (23), and the first diaphragm (241) together enclose a first chamber (201). The basin frame (210) is provided with a first through hole (215), which connects the first chamber (201) and the space on the side of the second diaphragm (251) facing away from the first diaphragm (241). At least a portion of the basin frame (210), a portion of the magnetic circuit assembly (23), and the second diaphragm (251) together enclose a second chamber (202), the second chamber (202) being spaced apart from the first chamber (201), the magnetic circuit assembly (23) being provided with a first channel (2301), the first channel (2301) being spaced apart from the first chamber (201), and the first channel (2301) communicating with the space on the side of the second chamber (202) and the first diaphragm (241) facing away from the second diaphragm (251).

2. The loudspeaker (20) according to claim 1, characterized in that, The first diaphragm (241) is provided with a second through hole (2416), which connects the first channel (2301) to the outside of the speaker (20).

3. The loudspeaker (20) according to claim 2, characterized in that, The magnetic circuit assembly (23) has a first magnetic gap (20a) and a second magnetic gap (20b) spaced apart. The loudspeaker (20) further includes a first voice coil (242) and a second voice coil (252). One end of the first voice coil (242) is fixedly connected to the first diaphragm (241), and the other end is located in the first magnetic gap (20a). One end of the second voice coil (252) is fixedly connected to the second diaphragm (251), and the other end is located in the second magnetic gap (20b).

4. The loudspeaker (20) according to claim 3, characterized in that, The magnetic circuit assembly (23) includes a first magnetic element (231), a second magnetic element (232) and a third magnetic element (233), wherein the second magnetic element (232) is disposed around the first magnetic element (231), and a portion of the first magnetic gap (20a) is formed between the first magnetic element (231) and the second magnetic element (232); The third magnetic element (233) is disposed around the second magnetic element (232), and a portion of the second magnetic gap (20b) is formed between the second magnetic element (232) and the third magnetic element (233).

5. The loudspeaker (20) according to claim 4, characterized in that, The first magnetic component (231) is provided with a first connecting hole (2311), which is part of the first channel (2301).

6. The loudspeaker (20) according to claim 4 or 5, characterized in that, The magnetic circuit assembly (23) further includes a first magnetic conductive element (234) and a second magnetic conductive element (235). The first magnetic conductive element (234) is fixedly connected to the first magnetic element (231) and the second magnetic element (232). The second magnetic conductive element (235) is fixedly connected to the third magnetic element (233). A portion of the first magnetic gap (20a) is formed between the first magnetic conductive element (234) and the second magnetic conductive element (235). The first magnetic conductive element (234) is provided with a second connecting hole (2341), which communicates with the second chamber (202). The second connecting hole (2341) is a portion of the first channel (2301). And / or, The magnetic circuit assembly (23) further includes a third magnetic conductor (236) and a fourth magnetic conductor (237). The third magnetic conductor (236) is fixedly connected to the first magnetic conductor (231), and the fourth magnetic conductor (237) is fixedly connected to the second magnetic conductor (232). A portion of the second magnetic gap (20b) is formed between the third magnetic conductor (236) and the fourth magnetic conductor (237). The third magnetic conductor (236) is provided with a third connecting hole (2361), and the second connecting hole (2341) communicates with the second chamber (202). The second connecting hole (2341) is a portion of the first channel (2301).

7. The loudspeaker (20) according to any one of claims 3 to 6, characterized in that, The first diaphragm (241) includes a vibrating part (2411), a first folded ring part (2412), a second folded ring part (2413), a first fixing part (2414), and a second fixing part (2415). The second fixing part (2415) is disposed around the second through hole (2416). The second folded ring part (2413) surrounds the outer periphery of the second fixing part (2415) and is connected to the second fixing part (2415). The vibrating part (2411) surrounds the outer periphery of the second folded ring part (2413) and is connected to the second folded ring part (2413). The first folded ring part (2412) surrounds the outer periphery of the vibrating part (2411) and is connected to the vibrating part (2411). The first fixing part (2414) surrounds the outer periphery of the first folded ring part (2412) and is connected to the first folded ring part (2412). The vibrating part (2411) is connected to the first voice coil (242), the first fixing part (2414) is fixedly connected to the frame (210), and the second fixing part (2415) is fixedly connected to the magnetic circuit assembly (23).

8. The loudspeaker (20) according to any one of claims 3 to 7, characterized in that, The loudspeaker (20) further includes a first electrical connection component (281) and a second electrical connection component (282) spaced apart, wherein the first electrical connection component (281) is electrically connected to the first voice coil (242) and the second electrical connection component (282) is electrically connected to the second voice coil (252).

9. The loudspeaker (20) according to any one of claims 3 to 7, characterized in that, The loudspeaker (20) further includes a first electrical connection component (281) and a third electrical connection component (283), the first electrical connection component (281) being electrically connected to the first voice coil (242), the first electrical connection component (281) being electrically connected to the third electrical connection component (283), and the third electrical connection component (283) being electrically connected to the second voice coil (252).

10. The loudspeaker (20) according to claim 9, characterized in that, The third electrical connection assembly (283) includes a first part (2831) and a second part (2832). The plane of the first part (2831) intersects the plane of the second part (2832). One end of the second part (2832) is connected to the first part (2831), and the other end extends to the side of the first diaphragm (241) facing away from the second diaphragm (251).

11. The loudspeaker (20) according to any one of claims 2 to 10, characterized in that, The loudspeaker (20) also includes a bracket (26) located between the magnetic circuit assembly (23) and the first diaphragm (241), and fixedly connecting the magnetic circuit assembly (23) and the first diaphragm (241); The bracket (26) is provided with a third through hole (261), which is spaced apart from the first chamber (201) and connects the first channel (2301) and the second through hole (2416).

12. The loudspeaker (20) according to any one of claims 1 to 11, characterized in that, The basin stand (210) includes a first basin stand (21), the first basin stand (21) includes a first surface (211) and a second surface (212) arranged opposite to each other, and the first surface (211) of the first basin stand (21) is fixedly connected to the first diaphragm (241); The first basin stand (21) is provided with the first through hole (215), which penetrates the first surface (211) and the second surface (212) of the first basin stand (21).

13. The loudspeaker (20) according to any one of claims 1 to 12, characterized in that, The basin stand (210) includes a first basin stand (21) and a second basin stand (210), the first basin stand (21) is fixedly connected to the second basin stand (210), the first basin stand (21) is fixedly connected to the first diaphragm (241), and the second basin stand (210) is fixedly connected to the second diaphragm (251). The first basin stand (21) is provided with a second through groove (2151), and the second basin stand (210) is provided with a third through groove (2291). The second through groove (2151) connects the first chamber (201) and the third through groove (2291). The second through groove (2151) and the third through groove (2291) together constitute the first through hole (215).

14. The loudspeaker (20) according to claim 13, characterized in that, The first basin stand (21) includes a first surface (211) and a second surface (212) arranged opposite to each other. The first surface (211) of the first basin stand (21) is fixedly connected to the first diaphragm (241). The second through groove (2151) passes through the first surface (211) and the second surface (212) of the first basin stand (21). The second basin stand (210) includes a first surface (221) and a second surface (222) arranged opposite to each other. The first surface (221) of the second basin stand (210) is fixedly connected to the second surface (222) of the first basin stand (21). The second surface (222) of the second basin stand (210) is fixedly connected to the second diaphragm (251). The third through groove (2291) passes through the first surface (221) and the second surface (222) of the second basin stand (210).

15. The loudspeaker (20) according to any one of claims 1 to 14, characterized in that, The operating frequency of the second diaphragm (251) is greater than that of the first diaphragm (241), and the diameter of the second diaphragm (251) is smaller than that of the first diaphragm (241).

16. The loudspeaker (20) according to any one of claims 1 to 15, characterized in that, The loudspeaker (20) further includes a first damping element (271), which is disposed on the frame (210) and covers the first through hole (215).

17. An electronic device (100), characterized in that, It includes a housing (10) and a speaker (20) as claimed in any one of claims 1 to 16, the speaker (20) being mounted on the housing (10).

18. The electronic device (100) according to claim 17, characterized in that, The housing (10) has an inner cavity (11), and the frame (210) of the speaker (20) is connected to the inner wall of the housing (10) to divide the inner cavity (11) into a front cavity (111) and a rear cavity (112). The front cavity (111) is connected to the first channel (2301) and the outside of the electronic device (100), and the rear cavity (112) is connected to the first through hole (215). The electronic device (100) further includes a tweeter (90) mounted in the front cavity (111).

19. The electronic device (100) according to claim 17, characterized in that, The housing (10) has an inner cavity (11), and the speaker (20) is connected to the inner wall of the housing (10) to separate the inner cavity (11) into a front cavity (111) and a rear cavity (112). The front cavity (111) is connected to the first through hole (215) and the outside of the electronic device (100), and the rear cavity (112) is connected to the first channel (2301).

20. The electronic device (100) according to claim 18 or 19, characterized in that, The loudspeaker (20) also includes a through hole (2352), which is provided on the frame (210) or on the magnetic circuit assembly (23). Projected along the axial direction of the loudspeaker (20), the projection of the through hole (2352) is spaced apart from the projections of the first through hole (215), the first diaphragm (241), and the second diaphragm (251) on a plane perpendicular to the axial direction of the loudspeaker (20). The through hole (2352) connects the front cavity (111) and the rear cavity (112).

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