Loudspeaker module and electronic equipment

Abstract

The utility model provides a loudspeaker module and electronic equipment. The loudspeaker module comprises a box body, a first loudspeaker monomer and a second loudspeaker monomer, wherein the first loudspeaker monomer and the second loudspeaker monomer are arranged in the box body along a first direction; wherein the first vibration system of the first loudspeaker single body and the second vibration system of the second loudspeaker single body are oppositely arranged, the first loudspeaker single body and the second loudspeaker single body are both communicated with the first sound outlet channel, and the first sound outlet channel is used for leading out sound emitted by the first loudspeaker single body and the second loudspeaker single body. The first sound outlet channel is arranged on the side wall, parallel to the first direction, of the box body. The box body of the loudspeaker module can be directly used as a decorative structure, so that the number of parts can be reduced, and the internal space utilization rate of the electronic equipment is improved; moreover, a part of the loudspeaker module can be accommodated in the empty area generated by the removed decorative structure, so that the size of the loudspeaker module can be properly increased.

Description

Technical Field

[0001] This application relates to the field of loudspeaker technology, and in particular to a loudspeaker module and electronic device. Background Technology

[0002] With the widespread use of electronic devices, users have increasingly higher requirements for the performance of these devices in all aspects. Taking laptops as an example, in order to effectively reduce the impact of vibrations generated during speaker operation on the laptop body and reduce the probability of resonance, two speaker units arranged back-to-back are usually used in the laptop speaker module to cancel out the vibrations generated during operation.

[0003] To enhance the overall aesthetics of electronic devices, decorative mesh is often added to the surface of the speaker enclosure. However, the addition of decorative mesh not only increases the number of parts in the speaker module, making installation more difficult and complex, but also occupies limited internal space, hindering the efficient use of internal space and the achievement of slimmer and smaller designs. Utility Model Content

[0004] This application provides a speaker module and an electronic device to improve the utilization of internal space in the electronic device and achieve a thinner and smaller design.

[0005] In a first aspect, a loudspeaker module is provided, comprising: a housing and a first loudspeaker unit and a second loudspeaker unit arranged in the housing along a first direction;

[0006] The first vibration system of the first speaker unit and the second vibration system of the second speaker unit are arranged opposite to each other. Both the first speaker unit and the second speaker unit are connected to the first sound output channel. The first sound output channel is used to output the sound emitted by the first speaker unit and the first speaker unit. The first sound output channel is disposed on the side wall of the enclosure parallel to the first direction.

[0007] The first sound outlet channel is set on the side wall of the enclosure parallel to the first direction. The central axis of the first sound outlet channel can form an angle with the first direction. The inner wall of the first sound outlet channel can visually block the first speaker unit and the second speaker unit. That is, the enclosure of the speaker module can block the first speaker unit and the second speaker unit. The enclosure of the speaker module can be used directly as a decorative structure. In this way, there is no need to set additional decorative structures on the outside of the enclosure, thereby reducing the number of parts, improving the internal space utilization of electronic devices, and realizing the thinner and smaller design of electronic devices.

[0008] Since electronic devices do not require additional decorative structures on the outside of the enclosure, the empty space created by removing the decorative structures can accommodate a portion of the speaker module, and the size of the speaker module can be appropriately increased, which helps to improve the sound quality of the speaker module.

[0009] Furthermore, once the speaker module is installed in an electronic device, no additional decorative structure is required. This reduces the assembly dependency between the speaker module and other components within the electronic device, thereby improving the speaker module's versatility. This allows the speaker module to be used in different models of electronic devices, which in turn helps reduce the production cost of electronic devices.

[0010] With the above settings, the speaker module enclosure of this application embodiment can be directly used as a decorative structure, which can reduce the number of parts, improve the internal space utilization of electronic devices, and realize the thinner and smaller design of electronic devices; and the empty area created by removing the decorative structure can accommodate part of the speaker module to appropriately increase the size of the speaker module, which helps to improve the sound quality of the speaker module; in addition, it can also improve the versatility of the speaker module and help reduce the production cost of electronic devices.

[0011] In one possible implementation, the inner sidewall of the enclosure, together with the first sound-emitting surface of the first speaker unit and the second sound-emitting surface of the second speaker unit, forms a front cavity, which is connected to the first sound outlet channel.

[0012] The sound emitted by the first speaker unit and the sound emitted by the second speaker unit vibrate in perfect phase synchronization. When the sound waves from both units meet, they "superimpose," adding amplitude and increasing the energy of the sound. This helps improve the sound quality of the speaker module. In addition, the front cavity is connected to the first sound outlet channel, which can concentrate and guide the sound waves to the first sound outlet channel, reducing the scattering of sound waves in other directions of the enclosure and optimizing the sound field distribution.

[0013] In one possible implementation, the enclosure contains a first rear cavity spaced apart from the front cavity, and the first speaker unit further includes a first inner cavity disposed on one side of the first sound-emitting surface and a first adjustment hole communicating with the first inner cavity; the first adjustment hole communicating with the first rear cavity; and / or,

[0014] The enclosure is provided with a second rear cavity that is separated from the front cavity. The second speaker unit also includes a second inner cavity disposed on one side of the second sound-emitting surface and a second adjustment hole that communicates with the second inner cavity. The second adjustment hole communicates with the second rear cavity.

[0015] The first adjustment hole connects the first inner cavity and the first rear cavity. When the first sound-emitting surface of the first speaker unit vibrates, that is, when the first diaphragm assembly of the first speaker unit vibrates, the air in the first rear cavity and the air in the first inner cavity can flow back and forth through the first adjustment hole to generate resonance. This is equivalent to increasing the space behind the first diaphragm assembly of the first speaker unit, which can amplify the amplitude of sound waves at a specific frequency and improve the low-frequency sound effect.

[0016] In this embodiment, a portion of the speaker module can be accommodated in the empty space created by the removed decorative structure within the electronic device, and the size of the speaker module can be appropriately increased as a result. Thus, the size of the first rear cavity can be appropriately increased, further improving the sound effect of the speaker module.

[0017] The second adjustment hole connects the second inner cavity and the second rear cavity. When the second sound-emitting surface of the second speaker unit vibrates, that is, when the second diaphragm assembly of the second speaker unit vibrates, the air in the second rear cavity and the air in the second inner cavity can flow back and forth through the second adjustment hole to generate resonance. This is equivalent to increasing the space behind the second diaphragm assembly of the second speaker unit, which can amplify the amplitude of sound waves at specific frequencies and improve the low-frequency sound effect.

[0018] In this embodiment, a portion of the speaker module can be accommodated in the empty space created by the removed decorative structure within the electronic device, and the size of the speaker module can be appropriately increased as a result. Thus, the size of the second rear cavity can be appropriately increased, further enhancing the sound effect of the speaker module.

[0019] In one possible implementation, the first rear cavity, the first speaker unit, and the second rear cavity are arranged sequentially along a direction perpendicular to the first direction.

[0020] Arranging the first rear cavity, the first speaker unit, and the second rear cavity sequentially along a direction perpendicular to the first direction can reduce the width of the speaker module and increase its length, allowing the speaker module to be elongated. This allows the speaker module to be installed in a strip-shaped space inside the housing, which helps to improve the compactness of the internal structure of electronic devices.

[0021] In one possible implementation, the inner sidewall of the housing is recessed to form a first adjustment channel, and at least a portion of the first adjustment hole communicates with the first rear cavity and the second rear cavity respectively through the first adjustment channel;

[0022] The inner sidewall of the housing is recessed to form a second adjustment channel, and at least a portion of the second adjustment holes are connected to the first rear cavity and the second rear cavity respectively through the second adjustment channel.

[0023] A first adjustment channel is formed by recessing the inner sidewall of the enclosure. The first adjustment hole can be connected to the first rear cavity and the second rear cavity through the first adjustment channel. That is, the air in the first inner cavity of the first speaker unit can resonate with the air in the first rear cavity and the second rear cavity, which is equivalent to further increasing the space behind the first diaphragm assembly of the first speaker unit, thus further improving the sound effect of the speaker module.

[0024] A second adjustment channel is formed by recessing the inner side wall of the enclosure. The second adjustment hole can be connected to the first rear cavity and the second rear cavity through the second adjustment channel. That is, the air in the second inner cavity of the second speaker unit can resonate with the air in the first rear cavity and the second rear cavity, which is equivalent to further increasing the space behind the second diaphragm assembly of the second speaker unit, thus further improving the sound effect of the speaker module.

[0025] Furthermore, the first rear cavity and the second rear cavity are connected through the first adjustment channel and the second adjustment channel, allowing the first speaker unit and the second speaker unit to share the first and second rear cavities. This allows for a larger equivalent volume without significantly increasing the overall size. Conversely, it allows for a reduction in the size of the speaker module while maintaining sound quality, thereby reducing the space occupied by the speaker module within the electronic device. The sound waves behind the first diaphragm assembly of the first speaker unit and the second diaphragm assembly of the second speaker unit can also mix and superimpose within the first and second rear cavities, enhancing the amplitude and improving the sound quality of the speaker module. In addition, the connected first and second rear cavities can provide the same air damping for the first and second diaphragm assemblies, reducing the phenomenon of asynchrony between the two diaphragm assemblies caused by a single-cavity design, reducing intermodulation distortion, and ensuring sound quality.

[0026] In some embodiments, the first rear cavity and the second rear cavity may be of equal size; in other embodiments, the volume of the first rear cavity may be greater than that of the second rear cavity; and in still other embodiments, the volume of the first rear cavity may be smaller than that of the second rear cavity.

[0027] The first speaker unit has multiple first adjustment holes arranged around the center of the first speaker unit, some of which are connected to the first adjustment channel, and others of which can be directly connected to the first rear cavity or the second rear cavity. The second speaker unit has multiple second adjustment holes arranged around the center of the second speaker unit, some of which are connected to the first adjustment channel, and others of which can be directly connected to the first rear cavity or the second rear cavity.

[0028] In one possible implementation, the first speaker unit and the second speaker unit are combined to form a speaker assembly. A first partition is provided inside the enclosure, which is disposed between the first rear cavity and the speaker assembly. The first speaker unit has a first side facing the first partition, and the second speaker unit has a second side facing the first partition. The side of the first partition facing the speaker assembly abuts against the first side and the second side, respectively, so as to separate the first rear cavity and the front cavity.

[0029] The enclosure is provided with a second partition, which is disposed between the second rear cavity and the speaker assembly. The first speaker unit has a third side facing the second partition, and the second speaker unit has a fourth side facing the second partition. The second partition abuts against the third side and the fourth side respectively, so as to separate the second rear cavity and the front cavity.

[0030] A first partition is installed inside the enclosure, which abuts against the first side and the second side respectively. The first partition can block the airflow between the front cavity and the first rear cavity, reduce the mixing of sound waves in the front cavity and the first rear cavity, and help improve the sound quality of the speaker module. In addition, the first side of the first speaker unit and the second side of the second speaker unit abut against the first partition, that is, the first partition can form surface contact with the first speaker unit and the second speaker unit respectively. This facilitates the assembly of the speaker module and reduces the assembly difficulty of the speaker module.

[0031] In some embodiments, the edge of the first partition may be provided with a notch or hole structure so that the first adjustment hole of the first speaker unit can communicate with the first rear cavity, and the second adjustment hole of the second speaker unit can communicate with the first rear cavity.

[0032] A first partition is installed inside the enclosure, which abuts against the third and fourth sides respectively. The second partition can block the airflow between the front cavity and the second rear cavity, reducing the mixing of sound waves in the front cavity and the second rear cavity, which helps to improve the sound quality of the speaker module. In addition, the third side of the first speaker unit and the fourth side of the second speaker unit abut against the second partition, that is, the second partition can form surface contact with the first speaker unit and the second speaker unit respectively. This facilitates the assembly of the speaker module and reduces the assembly difficulty of the speaker module.

[0033] In some embodiments, the edge of the second partition may be provided with a notch or hole structure so that the first adjustment hole of the first speaker unit can communicate with the second rear cavity, and the second adjustment hole of the second speaker unit can communicate with the second rear cavity.

[0034] In one possible implementation, the enclosure includes: a middle frame, a first shell, and a second shell;

[0035] The middle frame is used to form a receiving space with the first housing for accommodating the first speaker unit; the middle frame is also used to form a receiving space with the second housing for accommodating the second speaker unit, and the first sound outlet channel is disposed on the middle frame.

[0036] The design of the first housing, the second housing, and the middle frame allows the cabinet to be separated into independent components, which reduces the complexity of the mold and the difficulty of injection molding the cabinet, and helps to reduce the cost of mass production of the cabinet. The first sound outlet channel is set in the middle frame, so that the first sound outlet channel can be close to the first sound-emitting surface and the second sound-emitting surface, which helps to shorten the distance of the sound wave from the first speaker unit and the second speaker unit to the first sound outlet channel, and helps to improve the sound quality of the speaker module.

[0037] In one possible implementation, the mid-frame has a support portion located between the first speaker unit and the second speaker unit.

[0038] A support section is provided in the middle frame, located between the first speaker unit and the second speaker unit. This reduces the difficulty of assembling and positioning the first speaker unit, the second speaker unit, and the middle frame.

[0039] In this embodiment, the middle frame may be provided with four support parts. At this time, the four corner areas of the first speaker unit may abut against the four support parts respectively, and the four corner areas of the second speaker unit may abut against the four support parts respectively.

[0040] In one possible implementation, the support includes a first support surface and a second support surface, wherein the first support surface is used to support the first speaker unit and the second support surface is used to support the second speaker unit.

[0041] A first support surface and a second support surface are provided in the support part, and the first support surface and the second support surface are located on both sides of the support part. The support part can form surface contact with the first speaker unit and the second speaker unit, which can improve the contact stability between the support part and the first speaker unit and the second speaker unit.

[0042] In one possible implementation, the enclosure has a first mounting surface perpendicular to the first direction, the first mounting surface being provided with a first mounting hole, and at least a portion of the first speaker unit being mounted within the first mounting hole; and / or,

[0043] The enclosure has a second mounting surface perpendicular to the first direction, and the second mounting surface is provided with a second mounting hole, in which at least a portion of the second speaker unit is mounted.

[0044] A first mounting hole is provided on the enclosure, and at least a portion of the first speaker unit is installed in the first mounting hole, that is, at least a portion of the first speaker unit can be embedded in the enclosure. This helps to reduce the overall thickness of the speaker module, reduce the overall size of the speaker module, improve the utilization rate of internal space of electronic devices, and help improve the compactness of the internal parts of electronic devices, thus realizing the lightweight and miniaturized design of electronic devices.

[0045] The first mounting hole can be a through hole. In this case, the first speaker unit can be flush with the outer surface of the enclosure or recessed, meaning that the first speaker unit does not protrude from the outer surface of the enclosure. This reduces the impact of the first speaker unit on the appearance of the speaker module.

[0046] In some embodiments, the first mounting surface is disposed on the first housing, and thus the first mounting hole is disposed on the first housing.

[0047] In some embodiments, the side of the first lower magnetic plate of the first speaker unit facing away from the first upper magnetic plate faces the outside of the speaker module, and the side of the first lower magnetic plate facing away from the first upper magnetic plate may be coated so that the side has the same appearance as the enclosure.

[0048] A second mounting hole is provided on the enclosure, and at least a portion of the second speaker unit is installed in the second mounting hole, that is, at least a portion of the second speaker unit can be embedded in the enclosure. This helps to reduce the overall thickness of the speaker module, reduce the overall size of the speaker module, improve the utilization rate of internal space of electronic devices, and help improve the compactness of the internal components of electronic devices, thereby achieving the design of thinner and smaller electronic devices.

[0049] The second mounting hole can be a through hole. In this case, the second speaker unit can be flush with the outer surface of the cabinet or recessed, meaning that the second speaker unit does not protrude from the outer surface of the cabinet. This reduces the impact of the second speaker unit on the appearance of the speaker module.

[0050] In some embodiments, the second mounting surface is disposed on the second housing, and thus the second mounting hole is disposed on the second housing.

[0051] In some embodiments, the side of the second lower magnetic plate of the second speaker unit facing away from the second upper magnetic plate faces the outside of the speaker module, and the side of the second lower magnetic plate facing away from the second upper magnetic plate may be coated so that the side has the same appearance as the enclosure.

[0052] In one possible implementation, the first speaker unit and the second speaker unit are symmetrically arranged along the central axis of the first sound output channel.

[0053] By symmetrically arranging the first speaker unit and the second speaker unit along the central axis of the first sound output channel, the superposition effect of the sound waves from the first speaker unit and the second speaker unit can be enhanced, thereby improving the sound quality of the speaker module.

[0054] In one possible implementation, the first speaker unit and the second speaker unit are bonded together.

[0055] By attaching the first speaker unit and the second speaker unit together, the distance between the first sound-emitting surface and the second sound-emitting surface can be reduced, enhancing the superposition effect of sound waves. In addition, the attachment of the first speaker unit and the second speaker unit can form physical contact, allowing some vibrations to be directly canceled out, thereby reducing the vibrations transmitted to the enclosure.

[0056] In one possible implementation, the first vibration system includes at least two first voice coils arranged perpendicular to the first direction, and the first loudspeaker unit further includes at least two first magnetic circuit systems matched and corresponding one-to-one with the first voice coils; and / or

[0057] The second vibration system includes at least two second voice coils arranged perpendicular to the first direction. The second loudspeaker unit also includes at least two second magnetic circuit systems, which are matched and correspond one-to-one with the second voice coils.

[0058] Understandably, under the influence of the magnetic field of the first magnetic circuit system, the energized first voice coil can reciprocate, thereby driving the first diaphragm assembly to vibrate. Appropriately increasing the volume of the first magnetic circuit system and the first voice coil can enhance the vibration effect of the first diaphragm assembly, thus improving the sound performance of the first loudspeaker unit. However, when the volume of the first magnetic circuit system and the first voice coil increases to a certain extent, the magnetic field at the center of the first magnetic circuit system becomes difficult to utilize effectively. At this point, further increasing the volume of the first magnetic circuit system and the first voice coil is unlikely to significantly improve the sound performance of the first loudspeaker unit. If the first magnetic circuit system is divided into two smaller first magnetic circuit systems, and the first voice coil is correspondingly divided into two smaller second voice coils, the magnetic field between these two smaller first magnetic circuit systems can be fully utilized, further improving the sound performance of the first loudspeaker unit. Thus, while keeping the volume of the first loudspeaker unit constant, reducing the volume of a single first magnetic circuit system and the first voice coil, and increasing the number of first magnetic circuit systems and the first voice coil, can improve the utilization rate of the magnetic field and enhance the sound performance.

[0059] Under the influence of the magnetic field of the second magnetic circuit system, the energized second voice coil can reciprocate, thereby driving the second diaphragm assembly to vibrate. Appropriately increasing the volume of the second magnetic circuit system and the second voice coil can enhance the vibration effect of the second diaphragm assembly, thus improving the sound performance of the second speaker unit. However, when the volume of the second magnetic circuit system and the second voice coil increases to a certain extent, the magnetic field at the center of the second magnetic circuit system becomes difficult to utilize effectively. At this point, further increasing the volume of the second magnetic circuit system and the second voice coil will not significantly improve the sound performance of the second speaker unit. If the second magnetic circuit system is divided into two smaller systems, and the second voice coil is correspondingly divided into two smaller voice coils, the magnetic field between these two smaller systems can be fully utilized, further improving the sound performance of the second speaker unit. Therefore, while keeping the volume of the second speaker unit constant, reducing the volume of a single second magnetic circuit system and the second voice coil, and increasing the number of such systems, can improve the utilization rate of the magnetic field and enhance the sound performance.

[0060] In a second aspect, an electronic device is provided, including a housing, wherein a speaker module is disposed inside the housing, and the speaker module is the speaker module described above.

[0061] Since the speaker module in any of the above embodiments sets the first sound outlet channel on the side wall of the enclosure parallel to the first direction, the central axis of the first sound outlet channel can form an angle with the first direction. The inner wall of the first sound outlet channel can visually block the first speaker unit and the second speaker unit. That is, the enclosure of the speaker module can block the first speaker unit and the second speaker unit. The enclosure of the speaker module can be used directly as a decorative structure. In this way, the electronic device does not need to set an additional decorative structure on the outside of the enclosure, thereby reducing the number of parts, improving the internal space utilization of the electronic device, and realizing the thinner and smaller design of the electronic device.

[0062] In one possible implementation, the housing is provided with a second sound outlet channel communicating with the first sound outlet channel of the speaker module, and the central axis of the second sound outlet channel is set at an angle to the central axis of the first sound outlet channel.

[0063] The central axis of the second sound outlet channel is set at an angle to the central axis of the first sound outlet channel. The inner wall of the second sound outlet channel can visually cover the speaker module, thereby further reducing the exposure of the speaker module and improving the overall appearance of the electronic device. Attached Figure Description

[0064] Figure 1 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application.

[0065] Figure 2 This is a schematic diagram of the structure of the electronic device provided in the embodiment of this application (with the back cover hidden).

[0066] Figure 3 This is a schematic diagram of the speaker module provided in the embodiments of this application.

[0067] Figure 4 yes Figure 3 The diagram shows a cross-sectional view of the speaker module. Figure 1 .

[0068] Figure 5 yes Figure 3 The diagram shows a cross-sectional view of the speaker module. Figure 2 .

[0069] Figure 6 This is a schematic diagram of the structure of the first loudspeaker unit provided in the embodiments of this application.

[0070] Figure 7 yes Figure 6 The diagram shows a cross-sectional view of the first loudspeaker unit.

[0071] Figure 8 yes Figure 6 The diagram shows an exploded view of the first loudspeaker unit.

[0072] Figure 9 yes Figure 5 The diagram shown is an exploded cross-sectional view of the speaker module.

[0073] Figure 10 This is an exploded view of the box structure provided in the embodiment of this application.

[0074] Figure 11 yes Figure 3 The diagram shown is an exploded view of the speaker module.

[0075] Figure 12 This is a schematic diagram of the structure of the middle frame provided in the embodiment of this application.

[0076] Figure 13 This is a structural schematic diagram (hidden enclosure) of the speaker module provided in the embodiment of this application.

[0077] Figure label:

[0078] 1000. Electronic device; 100. Display screen; 200. Housing; 2001. Front housing; 2002. Rear housing; 300. Keyboard; 400. Touchpad; 500. Decorative mesh; 600. Function module; 700. Speaker module; 800. Second sound output channel;

[0079] 1. Cabinet; 11. First housing; 111. First mounting surface; 112. First mounting hole; 12. Second housing; 121. Second mounting surface; 122. Second mounting hole; 13. Middle frame; 131. First partition; 132. Second partition; 133. Support; 1331. First support surface; 1332. Second support surface; 101. First rear cavity; 102. Second rear cavity; 103. First sound outlet channel; 104. Front cavity; 105. First adjustment channel; 106. Second adjustment channel;

[0080] 2. First loudspeaker driver; 21. First magnetic circuit system; 211. First upper magnetic guide plate; 212. First upper magnet assembly; 213. First washer assembly; 214. First lower magnet assembly; 215. First lower magnetic guide plate; 22. First vibration system; 221. First diaphragm assembly; 2211. First sound-emitting surface; 222. First voice coil; 23. First frame; 231. First adjustment hole; 232. First side; 233. Third side; 24. First circuit board; 25. First diaphragm; 26. First frame; 201. First inner cavity;

[0081] 3. Second loudspeaker driver; 31. Second magnetic circuit system; 311. Second upper magnetic guide plate; 312. Second upper magnet assembly; 313. Second washer assembly; 314. Second lower magnet assembly; 315. Second lower magnetic guide plate; 32. Second vibration system; 321. Second diaphragm assembly; 3211. Second sound-emitting surface; 322. Second voice coil; 33. Second frame; 331. Second adjustment hole; 332. Second side; 333. Fourth side; 34. Second circuit board; 35. Second diaphragm; 36. Second frame; 301. Second inner cavity;

[0082] 4. Third circuit board;

[0083] 5. Fourth circuit board. Detailed Implementation

[0084] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0085] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between the components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0086] In the description of this application, it should be understood that the terms "upper", "lower", "side", "front", "rear", etc., indicate the orientation or positional relationship based on the installation orientation or positional relationship, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0087] Hereinafter, the terms "first," "second," 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "a plurality of" means two or more.

[0088] In this article, the term "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 article generally indicates that the preceding and following related objects have an "or" relationship.

[0089] With the widespread use of electronic devices, users have increasingly higher demands for their performance in all aspects. Taking laptops as an example, the speakers, as a key component for sound output, directly determine the user's auditory experience. Speakers convert electrical signals into mechanical vibrations, which in turn push air to generate sound waves, thus enabling sound propagation. However, in actual operation, the speaker module inevitably vibrates while converting electrical signals into sound. This vibration is not only transmitted to the speaker module's own enclosure but can also easily be conducted through the chassis structure to components such as the keyboard, causing keyboard resonance. When the keyboard resonates, it produces additional noise, severely interfering with normal sound output and greatly reducing the user's auditory experience.

[0090] To effectively reduce the impact of speaker vibrations on the laptop chassis and lower the probability of resonance, two speaker drivers positioned back-to-back can be used in the laptop's speaker module. When both drivers operate simultaneously, their opposite vibration directions can, to some extent, cancel each other out the vibrations transmitted to the speaker module's enclosure. This reduces the vibrational energy transmitted to the laptop chassis, thereby minimizing resonance and improving user comfort.

[0091] However, this design approach also has certain drawbacks. To enhance the overall aesthetics of the electronic device, a decorative mesh needs to be added to the surface of the speaker module's enclosure. However, this addition not only increases the number of components in the speaker module, thus increasing the difficulty and complexity of installation, but also occupies additional limited internal space. In today's trend towards thinner and smaller electronic devices, this extra space occupation is clearly detrimental to the design of these devices, hindering their development towards greater thinness and compactness.

[0092] Based on this, embodiments of this application provide a speaker module and an electronic device to improve the internal space utilization of the electronic device and achieve a thinner and smaller design.

[0093] Figure 1 This is a schematic diagram of the structure of the electronic device 1000 provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the electronic device 1000 provided in an embodiment of this application (hiding the back cover 2002). (Refer to...) Figure 1 and Figure 2 This application first provides an electronic device 1000, which may be, for example, a mobile phone, tablet computer, laptop computer, television, in-vehicle equipment, wearable device, personal digital assistant (PDA), point of sale (POS), video surveillance equipment, or other electronic products with audio playback functions. The mobile phone may be, for example, a conventional candybar phone or a foldable phone, such as a small vertical folding phone, a left-right inward folding phone, or a left-right outward folding phone. Wearable devices may be, for example, smart bracelets, smartwatches, wireless headphones, augmented reality (AR) glasses, AR headsets, virtual reality (VR) glasses, or VR headsets.

[0094] Electronic device 1000 may have a display screen 100, a speaker module 700, a central processing unit (CPU), a memory, a battery, and other functional modules 600. The CPU, as the computing and control core of the computer system, is the final execution unit for information processing and program execution. For example, the CPU can be connected to the display screen 100 and the speaker module 700 respectively, so that the display screen 100 and the speaker module 700 can play video and audio respectively.

[0095] The following section uses Electronic Device 1000 as an example of a tablet computer to introduce this solution.

[0096] Continue to refer to Figure 1 and Figure 2 The electronic device 1000 may include a housing 200, and a speaker module 700 may be disposed within the housing 200. By disposing of the speaker module 700 within the housing 200 of the electronic device 1000, the housing 200 can conceal the speaker module 700, which helps to improve the overall appearance of the electronic device 1000.

[0097] In addition, the central processing unit, memory, battery and other functional modules 600 of the electronic device 1000 can also be housed inside the housing 200.

[0098] In this embodiment, the electronic device 1000 also includes a keyboard 300 and a touchpad 400 spaced apart from the keyboard 300. The keyboard 300 and touchpad 400 are respectively mounted on the housing 200, and the speaker module 700 is disposed on the back side of the touchpad 400. It should be noted that when the electronic device 1000 is unfolded and in use, the side of the electronic device 1000 facing the user is the front side (e.g., the side where the keyboard 300, touchpad 400, and display screen 100 are located), and the side of the electronic device 1000 away from the user is the rear side (e.g., the side where the brand logo of the electronic device 1000 is located, and the side where the electronic device 1000 is supported by the desktop). By disposing of the speaker module 700 on the back side of the touchpad 400, the space on the back side of the touchpad 400 can be fully utilized to install the speaker module 700, thereby improving the compactness of the internal structure of the electronic device 1000.

[0099] The opening of the second sound output channel 800 of the electronic device 1000 is located on the back side of the electronic device 1000. When the electronic device 1000 is placed on the table in a normal state, the opening of the second sound output channel 800 faces the table. In this way, when in use, it is difficult for the user to directly see the opening of the second sound output channel 800, which can reduce the possibility that the user can directly see the speaker module 700 while using the electronic device 1000.

[0100] In some embodiments, the electronic device 1000 may be provided with two speaker modules 700, which may be disposed on both sides of the electronic device 1000, thereby helping to improve the audio playback effect of the electronic device 1000.

[0101] In some embodiments, the housing 200 of the electronic device 1000 may include a front housing 2001 and a rear housing 2002 connected to the front housing 2001. The rear housing 2002 may have a notch on its edge. After the rear housing 2002 and the front housing 2001 are assembled, the notch of the rear housing 2002 may form a second sound outlet channel 800.

[0102] In addition, the electronic device 1000 may also include a decorative mesh 500, which can be installed on one side of the speaker module 700 in a direction parallel to the rear shell 2002. The decorative mesh 500 can cover the installation gap between the front shell 2001 and the rear shell 2002, thereby reducing the possibility that users can directly see the central processing unit, memory, battery and other functional modules 600 inside the shell 200 through the installation gap between the front shell 2001 and the rear shell 2002. This helps to improve the appearance of the electronic device 1000.

[0103] In this embodiment, the structure of the speaker module 700 can be improved to eliminate the need for the decorative mesh 500 to cover the speaker module 700, thereby reducing the use of the decorative mesh 500 and thus reducing the number of parts in the electronic device 1000.

[0104] The structure of the speaker module 700 will be described in detail below with reference to the accompanying drawings.

[0105] Figure 3 This is a schematic diagram of the structure of the speaker module provided in the embodiments of this application; Figure 4 yes Figure 3 The diagram shows a cross-sectional view of the speaker module 700. Figure 1 ; Figure 5 yes Figure 3 The diagram shows a cross-sectional view of the speaker module 700. Figure 2 . Reference Figures 3 to 5 This application provides a speaker module 700, including: a housing 1 and a first speaker unit 2 and a second speaker unit 3 arranged in the housing 1 along a first direction.

[0106] The first vibration system 22 of the first loudspeaker unit 2 and the second vibration system 32 of the second loudspeaker unit 3 are arranged opposite to each other so as to cancel out the vibration transmitted to the enclosure 1.

[0107] The first speaker unit 2 and the second speaker unit 3 are both connected to the first sound output channel 103. The first sound output channel 103 is used to output the sound emitted by the first speaker unit 2 and the second speaker unit 3. The first sound output channel 103 is disposed on the side wall of the enclosure 1 parallel to the first direction.

[0108] Figure 6 This is a schematic diagram of the structure of the first loudspeaker unit 2 provided in the embodiments of this application; Figure 7 yes Figure 6 The diagram shows a cross-sectional view of the first loudspeaker unit 2. Figure 8 yes Figure 6 The diagram shown is an exploded view of the first loudspeaker unit 2. (Refer to...) Figures 6 to 8 It should be noted that the first loudspeaker unit 2 may include a first upper magnetic plate 211, a first diaphragm assembly 221, a first voice coil 222, a first upper magnet assembly 212, a first washer assembly 213, a first lower magnet assembly 214, a first frame 26, a first circuit board 24, a first diaphragm 25, a first frame 23, and a first lower magnetic plate 215. The first circuit board 24 may be a flexible printed circuit (FPC). The first upper magnetic plate 211, the first upper magnet assembly 212, the first washer assembly 213, the first lower magnet assembly 214, and the first lower magnetic plate 215 can be sequentially stacked to form a first magnetic circuit system 21 and mounted on the first frame 23 via the first frame 26. The first magnetic circuit system 21 can provide a uniform magnetic field for the first voice coil 222, realizing the conversion of electrical energy into mechanical energy.

[0109] The first vibration system 22 of the first loudspeaker unit 2 may include a first diaphragm assembly 221, a first voice coil 222, a first frame 26, a first circuit board 24 and a first dome. The first voice coil 222 may be movably disposed in the gap of the first magnetic circuit system 21. The lead wire of the first voice coil 222 may be connected to the first circuit board 24. When the first voice coil 222 is energized, it interacts with the magnetic field to generate a driving force, which drives the first diaphragm assembly 221 to vibrate and generate sound. The first sound-emitting surface 2211 may be the side of the first diaphragm assembly 221 of the first loudspeaker unit 2 facing the outside of the first loudspeaker unit 2. In some embodiments, the structure of the second loudspeaker unit 3 is the same as that of the first loudspeaker unit 2. That is, the second loudspeaker unit 3 may also include a second upper magnetic plate 311, a second diaphragm assembly 321, a second voice coil 322, a second upper magnet assembly 312, a second washer assembly 313, a second lower magnet assembly 314, a second frame 36, a second circuit board 34, a second diaphragm 35, a second frame 33, and a second lower magnetic plate 315. The second circuit board 34 may be an FPC. The second upper magnetic plate 311, the second upper magnet assembly 312, the second washer assembly 313, the second lower magnet assembly 314, and the second lower magnetic plate 315 may be stacked in sequence to form a second magnetic circuit system 31 and mounted on the second frame 33 through the second frame 36. The second sound-emitting surface 3211 of the second loudspeaker unit 3 may be the side of the second diaphragm assembly 321 of the second loudspeaker unit 3 facing the outside of the second loudspeaker unit 3. In addition, the first circuit board 24 and the second circuit board 34 can be connected to the third circuit board 4 and the fourth circuit board 5 of the speaker module 700, respectively. The third circuit board 4 and the fourth circuit board 5 can be FPC or non-flexible printed circuit board (PCB).

[0110] It should be noted that the first direction can be the Z-axis direction shown in the figure. The first vibration system 22 of the first speaker unit 2 and the second vibration system 32 of the second speaker unit 3 are arranged opposite to each other. When the first speaker unit 2 generates vibration in the positive direction of the Z-axis shown in the figure, the second speaker unit 3 can generate vibration in the negative direction of the Z-axis shown in the figure. In this way, the vibration directions generated by the first speaker unit 2 and the second speaker unit 3 are opposite, and the vibrations transmitted to the cabinet 1 by the first speaker unit 2 and the second speaker unit 3 can cancel each other out. However, the sound generated by the first speaker unit 2 and the second speaker unit 3 is consistent, and the sound generated by the first speaker unit 2 and the second speaker unit 3 can be superimposed without being canceled out.

[0111] It should be noted that the first sound output channel 103 is disposed on the side wall of the enclosure 1 parallel to the first direction. Thus, the central axis of the first sound output channel 103 forms an angle with the first direction, that is, the central axis of the first sound output channel 103 forms an angle with the Z-axis direction shown in the figure. The central axis of the first sound output channel 103 can be perpendicular to the Z-axis direction shown in the figure, or it can form an acute angle or an obtuse angle with the positive direction of the Z-axis shown in the figure.

[0112] It should be noted that the first speaker unit 2 and the second speaker unit 3 are arranged inside the enclosure 1. The enclosure 1 can cover the first speaker unit 2 and the second speaker unit 3. That is, the enclosure 1 can directly serve as a decorative structure for the first speaker unit 2 and the second speaker unit 3. The color of the enclosure 1 can be designed according to the appearance requirements of the electronic device 1000. For example, the color of the enclosure 1 can be consistent with the color of the decorative mesh 500 of the electronic device 1000, thereby improving the overall aesthetics and refinement of the electronic device 1000.

[0113] The first sound outlet channel 103 is disposed on the side wall of the enclosure 1 parallel to the first direction. The central axis of the first sound outlet channel 103 can form an angle with the first direction. The inner wall of the first sound outlet channel 103 can visually block the first speaker unit 2 and the second speaker unit 3. That is, the enclosure 1 of the speaker module 700 can block the first speaker unit 2 and the second speaker unit 3. The enclosure 1 of the speaker module 700 can be used directly as a decorative structure. In this way, there is no need to set an additional decorative structure on the outside of the enclosure 1, thereby reducing the number of parts, improving the internal space utilization of the electronic device 1000, and realizing the thinner and smaller design of the electronic device 1000.

[0114] Since the electronic device 1000 does not require additional decorative structures on the outside of the enclosure 1, the empty space created by removing the decorative structures can accommodate a portion of the speaker module 700, and the size of the speaker module 700 can be appropriately increased, which helps to improve the sound quality of the speaker module 700.

[0115] Furthermore, after the speaker module 700 is installed in the electronic device 1000, no additional decorative structure is required. This reduces the assembly correlation between the speaker module 700 and other components within the electronic device 1000, thereby improving the versatility of the speaker module 700. This allows the speaker module 700 to be used in different models of the electronic device 1000, thus helping to reduce the production cost of the electronic device 1000.

[0116] With the above settings, the enclosure 1 of the speaker module 700 in this embodiment can be directly used as a decorative structure, which can reduce the number of parts, improve the internal space utilization of the electronic device 1000, and realize the thinner and smaller design of the electronic device 1000; and the empty area created by the removal of the decorative structure can accommodate a part of the speaker module 700 to appropriately increase the size of the speaker module 700, which helps to improve the sound quality of the speaker module 700; in addition, it can also improve the versatility of the speaker module 700 and help reduce the production cost of the electronic device 1000.

[0117] Reference Figure 5 In some embodiments, the inner wall of the enclosure 1, together with the first sound-emitting surface 2211 of the first speaker unit 2 and the second sound-emitting surface 3211 of the second speaker unit 3, forms a front cavity 104, which is connected to the first sound outlet channel 103.

[0118] Understandably, the sound emitted by the first speaker unit 2 and the sound emitted by the second speaker unit 3 vibrate in complete phase synchronization. When the sound waves emitted by the two meet, they "superimpose," and the amplitudes are added together, thus increasing the energy of the sound. This helps to improve the sound effect of the speaker module 700. In addition, the front cavity 104 is connected to the first sound output channel 103. The front cavity 104 can concentrate and guide the sound waves to the first sound output channel 103, reducing the scattering of sound waves to other directions of the enclosure 1 and optimizing the sound field distribution.

[0119] Reference Figure 5 In some embodiments, the housing 1 is provided with a first rear cavity 101 that is separated from the front cavity 104. The first speaker unit 2 also includes a first inner cavity 201 disposed on one side of the first sound-emitting surface 2211 and a first adjustment hole 231 communicating with the first inner cavity 201. The first adjustment hole 231 is communicating with the first rear cavity 101.

[0120] It should be noted that the first inner cavity 201 is located inside the first loudspeaker unit 2. The first diaphragm assembly 221, the first upper magnetic plate 211, the first lower magnetic plate 215 and the first frame 23 of the first loudspeaker unit 2 can separate the first inner cavity 201 from the outside. The first inner cavity 201 can be located on the side of the first diaphragm assembly 211 of the first loudspeaker unit 2 away from the first sound-emitting surface 2211. The first adjustment hole 231 can be located in the first frame 23 of the first loudspeaker unit 2.

[0121] The first adjustment hole 231 connects the first inner cavity 201 and the first rear cavity 101. When the first sound-emitting surface 2211 of the first speaker unit 2 vibrates, that is, when the first diaphragm assembly 221 of the first speaker unit 2 vibrates, the air in the first rear cavity 101 and the air in the first inner cavity 201 can flow back and forth through the first adjustment hole 231 to generate resonance. This is equivalent to increasing the space behind the first diaphragm assembly 221 of the first speaker unit 2, which can amplify the amplitude of sound waves at a specific frequency and improve the low-frequency sound effect.

[0122] In this embodiment, a portion of the speaker module 700 can be accommodated in the empty space created by the removed decorative structure within the electronic device, and the size of the speaker module 700 can be appropriately increased. Thus, the size of the first rear cavity 101 can be appropriately increased, further improving the sound effect of the speaker module 700.

[0123] In some embodiments, the housing 1 is provided with a second rear cavity 102 that is separated from the front cavity 104. The second speaker unit 3 also includes a second inner cavity 301 disposed on one side of the second sound-emitting surface 3211 and a second adjustment hole 331 communicating with the second inner cavity 301. The second adjustment hole 331 is communicating with the second rear cavity 102.

[0124] It should be noted that the second inner cavity 301 is located inside the second speaker unit 3. The second diaphragm assembly 321, the second upper magnetic plate 311, the second lower magnetic plate 315, and the second frame 33 of the second speaker unit 3 can separate the second inner cavity 301 from the outside. The second inner cavity 301 can be located on the side of the second diaphragm assembly 321 of the second speaker unit 3 away from the second sound-emitting surface 3211. The second adjustment hole 331 can be located in the second frame 33 of the second speaker unit 3.

[0125] The second adjustment hole 331 connects the second inner cavity 301 and the second rear cavity 102. When the second sound-emitting surface 3211 of the second speaker unit 3 vibrates, that is, when the second diaphragm assembly 321 of the second speaker unit 3 vibrates, the air in the second rear cavity 102 and the air in the second inner cavity 301 can flow back and forth through the second adjustment hole 331 to generate resonance. This is equivalent to increasing the space behind the second diaphragm assembly 321 of the second speaker unit 3, which can amplify the amplitude of sound waves at specific frequencies and improve the low-frequency sound effect.

[0126] In this embodiment, a portion of the speaker module 700 can be accommodated in the electronic device using the empty space created by the removed decorative structure, and the size of the speaker module 700 can be appropriately increased. Thus, the size of the second rear cavity 102 can be appropriately increased, further improving the sound effect of the speaker module 700.

[0127] In some embodiments, the housing 1 may be provided with a first rear cavity 101 or a second rear cavity 102 separately; in other embodiments, the housing 1 may be provided with both a first rear cavity 101 and a second rear cavity 102 simultaneously.

[0128] Continue to refer to Figure 4 In some embodiments, the first rear cavity 101, the first speaker unit 2, and the second rear cavity 102 are arranged sequentially along a direction perpendicular to the first direction. That is, the first rear cavity 101, the first speaker unit 2, and the second rear cavity 102 can be arranged sequentially along a direction perpendicular to the Z-axis shown in the figure. For example, the first rear cavity 101, the first speaker unit 2, and the second rear cavity 102 can be arranged sequentially along the X-axis shown in the figure, or along the Y-axis shown in the figure, or along the angle between the X-axis and Y-axis shown in the figure. It should be noted that the first rear cavity 101, the first speaker unit 2, and the second rear cavity 102 are arranged in a straight line. In the embodiments of this application, the first rear cavity 101, the first speaker unit 2, and the second rear cavity 102 are arranged sequentially along the Y-axis shown in the figure.

[0129] Arranging the first rear cavity 101, the first speaker unit 2, and the second rear cavity 102 in sequence along a direction perpendicular to the first direction can reduce the width of the speaker module 700 and increase its length, allowing the speaker module 700 to be elongated. This allows the speaker module 700 to be installed in the elongated space inside the housing 200, which helps to improve the compactness of the internal structure of the electronic device 1000.

[0130] In some embodiments, the inner sidewall of the housing 1 is recessed to form a first adjustment channel 105, and at least a portion of the first adjustment holes 231 are connected to the first rear cavity 101 and the second rear cavity 102 through the first adjustment channel 105 respectively.

[0131] It should be noted that in some embodiments, the first speaker unit 2 may only have one first adjustment hole 231. In this case, at least a portion of this first adjustment hole 231 may be connected to the first adjustment channel 105, or the entire first adjustment hole 231 may be connected to the first adjustment channel 105. In other embodiments, refer to... Figure 6 The first loudspeaker unit 2 may be provided with multiple first adjustment holes 231. At this time, at least one first adjustment hole 231 may be connected to the first adjustment channel 105, or two or even all of the first adjustment holes 231 may be connected to the first adjustment channel 105. The multiple first adjustment holes 231 of the first loudspeaker unit 2 may be arranged around the center of the first loudspeaker unit 2.

[0132] A first adjustment channel 105 is formed by recessing the inner sidewall of the enclosure 1. The first adjustment hole 231 can be connected to the first rear cavity 101 and the second rear cavity 102 through the first adjustment channel 105. That is, the air in the first inner cavity 201 of the first speaker unit 2 can resonate with the air in the first rear cavity 101 and the second rear cavity 102, which is equivalent to further increasing the space behind the first diaphragm assembly 221 of the first speaker unit 2, thus further improving the sound effect of the speaker module 700.

[0133] In some embodiments, the inner sidewall of the housing 1 is recessed to form a second adjustment channel 106, and at least a portion of the second adjustment holes 331 are connected to the first rear cavity 101 and the second rear cavity 102 through the second adjustment channel 106 respectively.

[0134] A second adjustment channel 106 is formed by recessing the inner sidewall of the enclosure 1. The second adjustment hole 331 can be connected to the first rear cavity 101 and the second rear cavity 102 through the second adjustment channel 106 respectively. That is, the air in the second inner cavity 301 of the second speaker unit 3 can resonate with the air in the first rear cavity 101 and the second rear cavity 102, which is equivalent to further increasing the space behind the second diaphragm assembly 321 of the second speaker unit 3, thus further improving the sound effect of the speaker module 700.

[0135] Furthermore, the first rear cavity 101 and the second rear cavity 102 are connected through the first adjustment channel 105 and the second adjustment channel 106. The first speaker unit 2 and the second speaker unit 3 can share the first rear cavity 101 and the second rear cavity 102, which can achieve a larger equivalent volume without significantly increasing the volume. Conversely, the volume of the speaker module 700 can be reduced while ensuring sound quality, thereby reducing the space occupied by the speaker module 700 in the electronic device 1000. The sound waves behind the first diaphragm assembly 221 of the first speaker unit 2 and the second diaphragm assembly 321 of the second speaker unit 3 can also be mixed and superimposed in the first rear cavity 101 and the second rear cavity 102 to enhance the amplitude and improve the sound quality of the speaker module 700. In addition, the connected first rear cavity 101 and the second rear cavity 102 can provide the same air damping for the first diaphragm assembly 221 and the second diaphragm assembly 321, reducing the phenomenon of asynchrony between the two diaphragm assemblies caused by the single cavity design, reducing intermodulation distortion, and ensuring sound quality.

[0136] In some embodiments, the first rear cavity 101 and the second rear cavity 102 can be of equal size; in other embodiments, the volume of the first rear cavity 101 can be greater than that of the second rear cavity 102; and in still other embodiments, the volume of the first rear cavity 101 can be less than that of the second rear cavity 102.

[0137] Reference Figure 4 and Figure 5The first loudspeaker unit 2 has a plurality of first adjustment holes 231 arranged around the center of the first loudspeaker unit 2. A portion of the first adjustment holes 231 are connected to the first adjustment channel 105, and the other portion of the first adjustment holes 231 can be directly connected to the first rear cavity 101 or the second rear cavity 102. The second loudspeaker unit 3 has a plurality of second adjustment holes 331 arranged around the center of the second loudspeaker unit 3. A portion of the second adjustment holes 331 are connected to the first adjustment channel 105, and the other portion of the second adjustment holes 331 can be directly connected to the first rear cavity 101 or the second rear cavity 102.

[0138] Figure 9 yes Figure 5 The diagram shows an exploded cross-sectional view of the speaker module 700. (Refer to...) Figure 4 and Figure 9 The first speaker unit 2 and the second speaker unit 3 are combined to form a speaker assembly. A first partition 131 is provided inside the housing 1. The first partition 131 is disposed between the first rear cavity 101 and the speaker assembly. The first speaker unit 2 has a first side 232 facing the first partition 131, and the second speaker unit 3 has a second side 332 facing the first partition 131. The side of the first partition 131 facing the speaker assembly abuts against the first side 232 and the second side 332 respectively, so as to separate the first rear cavity 101 and the front cavity 104.

[0139] A first partition 131 is provided inside the housing 1, which abuts against the first side 232 and the second side 332 respectively. The first partition 131 can block the airflow between the front cavity 104 and the first rear cavity 101, reduce the mixing of sound waves in the front cavity 104 and the first rear cavity 101, and help improve the sound quality of the speaker module 700. In addition, the first side 232 of the first speaker unit 2 and the second side 332 of the second speaker unit 3 abut against the first partition 131, that is, the first partition 131 can form surface contact with the first speaker unit 2 and the second speaker unit 3 respectively. In this way, the assembly of the speaker module 700 can be facilitated and the assembly difficulty of the speaker module 700 can be reduced.

[0140] Reference Figure 9 In some embodiments, the edge of the first partition 131 may be provided with a notch or hole structure so that the first adjustment hole 231 of the first speaker unit 2 can communicate with the first rear cavity 101, and the second adjustment hole 331 of the second speaker unit 3 can communicate with the first rear cavity 101.

[0141] In some embodiments, a second partition 132 is provided inside the housing 1. The second partition 132 is disposed between the second rear cavity 102 and the speaker assembly. The first speaker unit 2 has a third side 233 facing the second partition 132, and the second speaker unit 3 has a fourth side 333 facing the second partition 132. The second partition 132 abuts against the third side 233 and the fourth side 333 respectively, so as to separate the second rear cavity 102 and the front cavity 104.

[0142] A first partition 131 is provided inside the housing 1, which abuts against the third side 233 and the fourth side 333 respectively. The second partition 132 can block the airflow between the front cavity 104 and the second rear cavity 102, reduce the mixing of sound waves in the front cavity 104 and the second rear cavity 102, and help improve the sound quality of the speaker module 700. In addition, the third side 233 of the first speaker unit 2 and the fourth side 333 of the second speaker unit 3 abut against the second partition 132, that is, the second partition 132 can form surface contact with the first speaker unit 2 and the second speaker unit 3 respectively. In this way, the assembly of the speaker module 700 can be facilitated and the assembly difficulty of the speaker module 700 can be reduced.

[0143] In some embodiments, the edge of the second partition 132 may be provided with a notch or hole structure so that the first adjustment hole 231 of the first speaker unit 2 can communicate with the second rear cavity 102, and the second adjustment hole 331 of the second speaker unit 3 can communicate with the second rear cavity 102.

[0144] Figure 10 This is an exploded view of the structure of the box 1 provided in the embodiment of this application; Figure 11 yes Figure 3 The diagram shows an exploded view of the speaker module 700. (Refer to...) Figure 10 and Figure 11 In some embodiments, the enclosure 1 includes a middle frame 13, a first housing 11 and a second housing 12, wherein the middle frame 13 is used to form a receiving space with the first housing 11 for accommodating the first speaker unit 2, and the middle frame 13 is also used to form a receiving space with the second housing 12 for accommodating the second speaker unit 3, and the first sound outlet channel 103 is disposed on the middle frame.

[0145] In this embodiment, the first housing 11 and the second housing 12 are disposed opposite to each other along a first direction, the middle frame 13 connects the first housing 11 and the second housing 12, the first speaker unit 2 and the second speaker unit 3 are disposed in the enclosed area of ​​the first housing 11, the second housing 12 and the middle frame 13, and the first sound output channel 103 is disposed in the middle frame 13.

[0146] The design of the first housing 11, the second housing 12, and the middle frame 13 allows the cabinet 1 to be separated into independent components, which reduces the complexity of the mold and the injection molding difficulty of the cabinet 1, and helps to reduce the cost of mass production of the cabinet 1. The first sound outlet channel 103 is set in the middle frame 13, so that the first sound outlet channel 103 can be close to the first sound-emitting surface 2211 and the second sound-emitting surface 3211, which helps to shorten the distance of the sound wave from the first speaker unit 2 and the second speaker unit 3 to the first sound outlet channel 103, and helps to improve the sound quality of the speaker module 700.

[0147] Figure 12 This is a schematic diagram of the structure of the middle frame 13 provided in an embodiment of this application. (Refer to...) Figure 12 The middle frame 13 is provided with a support part 133, which is located between the first speaker unit 2 and the second speaker unit 3.

[0148] A support part 133 is provided in the middle frame 13. The support part 133 is located between the first speaker unit 2 and the second speaker unit 3, which can reduce the difficulty of assembling and positioning the first speaker unit 2, the second speaker unit 3 and the middle frame 13.

[0149] In this embodiment, the two sides of the support portion 133 abut against the first speaker unit 2 and the second speaker unit 3, respectively. The middle frame 13 may be provided with four support portions 133. In this case, the four corner areas of the first speaker unit 2 can abut against the four support portions 133, and the four corner areas of the second speaker unit 3 can abut against the four support portions 133, respectively.

[0150] In this embodiment, the support portion 133 has a first support surface 1331 and a second support surface 1332, the first speaker unit 2 is disposed between the first support surface 1331 and the first housing 11, and the second speaker unit 3 is disposed between the second support surface 1332 and the second housing 12.

[0151] A first support surface 1331 and a second support surface 1332 are provided in the support part 133. The first support surface 1331 and the second support surface 1332 are located on both sides of the support part 133. The support part 133 can form surface contact with the first speaker unit 2 and the second speaker unit 3, which can improve the contact stability between the support part 133 and the first speaker unit 2 and the second speaker unit 3.

[0152] In this embodiment, the first speaker unit 2 can be assembled and positioned with the middle frame 13 first, and then the first housing 11 can be covered with the middle frame 13, which can facilitate the fixing of the first speaker unit 2; the second speaker unit 3 is disposed between the second support surface 1332 and the second housing 12. The second speaker unit 3 can be assembled and positioned with the middle frame 13 first, and then the second housing 12 can be covered with the middle frame 13, which can facilitate the fixing of the second speaker unit 3, thereby reducing the overall assembly difficulty of the speaker module 700.

[0153] In some embodiments, the housing 1 has a first mounting surface 111 perpendicular to the first direction, the first mounting surface 111 is provided with a first mounting hole 112, and at least a portion of the first speaker unit 2 is mounted in the first mounting hole 112.

[0154] It should be noted that the first mounting surface 111 is perpendicular to the first direction, that is, the first mounting surface 111 is perpendicular to the Z-axis direction shown in the figure. In some embodiments, the first mounting hole 112 can be a blind hole, that is, the first mounting hole 112 does not penetrate the housing 1, see reference. Figure 10 In other embodiments, the first mounting hole 112 can be a through hole, that is, the first mounting hole 112 can penetrate through the housing 1.

[0155] A first mounting hole 112 is provided on the housing 1, and at least a portion of the first speaker unit 2 is installed in the first mounting hole 112, that is, at least a portion of the first speaker unit 2 can be embedded in the housing 1. This helps to reduce the overall thickness of the speaker module 700, reduce the overall size of the speaker module 700, improve the internal space utilization of the electronic device 1000, and help improve the internal compactness of the electronic device 1000, so as to realize the lightweight and miniaturized design of the electronic device 1000.

[0156] Reference Figure 4 , Figure 5 and Figure 10 The first mounting hole 112 can be a through hole. In this case, the first speaker unit 2 can be flush with the outer surface of the enclosure 1 or recessed. That is, the first speaker unit 2 does not protrude from the outer surface of the enclosure 1. In this way, the impact of the first speaker unit 2 on the appearance of the speaker module 700 can be reduced.

[0157] In some embodiments, a first mounting surface 111 is disposed on a first housing 11, such that a first mounting hole 112 is disposed on a first housing 11.

[0158] In some embodiments, the side of the first lower magnetic plate 215 of the first speaker unit 2 facing away from the first upper magnetic plate 211 faces the outside of the speaker module 700. The side of the first lower magnetic plate 215 facing away from the first upper magnetic plate 211 may be coated so that the side has the same appearance as the enclosure 1.

[0159] In some embodiments, the housing 1 has a second mounting surface 121 perpendicular to the first direction, and the second mounting surface 121 is provided with a second mounting hole 122, and at least a portion of the second speaker unit 3 is mounted in the second mounting hole 122.

[0160] It should be noted that the second mounting surface 121 is perpendicular to the first direction, that is, the second mounting surface 121 is perpendicular to the Z-axis direction shown in the figure. In some embodiments, the second mounting hole 122 can be a blind hole, that is, the second mounting hole 122 does not penetrate the housing 1, see reference. Figure 10 In other embodiments, the second mounting hole 122 can be a through hole, that is, the second mounting hole 122 can penetrate through the housing 1.

[0161] A second mounting hole 122 is provided on the housing 1, and at least a portion of the second speaker unit 3 is installed in the second mounting hole 122, that is, at least a portion of the second speaker unit 3 can be embedded in the housing 1. This helps to reduce the overall thickness of the speaker module 700, reduce the overall size of the speaker module 700, improve the internal space utilization of the electronic device 1000, and help improve the internal compactness of the electronic device 1000, so as to realize the lightweight and miniaturized design of the electronic device 1000.

[0162] Reference Figure 4 , Figure 5 and Figure 10 The second mounting hole 122 can be a through hole. In this case, the second speaker unit 3 can be flush with the outer surface of the enclosure 1 or recessed, that is, the second speaker unit 3 does not protrude from the outer surface of the enclosure 1. In this way, the impact of the second speaker unit 3 on the appearance of the speaker module 700 can be reduced.

[0163] In some embodiments, the second mounting surface 121 is disposed on the second housing 12, such that the second mounting hole 122 is disposed on the second housing 12.

[0164] In some embodiments, the side of the second lower magnetic plate 315 of the second speaker unit 3 facing away from the second upper magnetic plate 311 faces the outside of the speaker module 700, and a coating may be provided on the side of the second lower magnetic plate 315 facing away from the second upper magnetic plate 311 so that the side has the same appearance as the enclosure 1.

[0165] Reference Figure 5The first speaker unit 2 and the second speaker unit 3 are symmetrically arranged along the central axis of the first sound output channel 103.

[0166] In this embodiment of the application, the central axis of the first sound output channel 103 is parallel to the X-axis direction shown in the figure.

[0167] By symmetrically arranging the first speaker unit 2 and the second speaker unit 3 along the central axis of the first sound output channel 103, the superposition effect of the sound waves of the first speaker unit 2 and the second speaker unit 3 can be enhanced, thereby improving the sound quality of the speaker module 700.

[0168] In some embodiments, the first speaker unit 2 and the second speaker unit 3 are bonded together.

[0169] By attaching the first speaker unit 2 and the second speaker unit 3 together, the distance between the first sound-emitting surface 2211 and the second sound-emitting surface 3211 can be reduced, thereby enhancing the superposition effect of sound waves. In addition, the attachment of the first speaker unit 2 and the second speaker unit 3 can form physical contact, so that some of the vibrations can be directly canceled out, thereby reducing the vibrations transmitted to the enclosure 1.

[0170] In this embodiment, the first upper magnetic plate 211 of the first speaker unit 2 can be attached to the second upper magnetic plate 311 of the second speaker unit 3. For example, adhesive can be used to bond the first upper magnetic plate 211 and the second upper magnetic plate 311 together.

[0171] Figure 13 This is a structural schematic diagram of the speaker module 700 provided in an embodiment of this application (hidden enclosure 1). (Refer to...) Figure 13 In this embodiment, the first speaker unit 2 and the second speaker unit 3 have identical structures. The third circuit board 4 of the speaker module 700 is connected to the first circuit board 24 of the first speaker unit 2, and the fourth circuit board 5 of the speaker module 700 is connected to the second circuit board 34 of the second speaker unit 3. The end of the third circuit board 4 facing away from the first speaker unit 2 can be soldered to the fourth circuit board 5, and the end of the fourth circuit board 5 facing away from the second speaker unit 3 can extend to the outside of the housing 1 and connect to the circuit structure inside the electronic device 1000. When audio needs to be played, the first speaker unit 2 and the second speaker unit 3 can receive the same electrical signal through the third circuit board 4 and the fourth circuit board 5. At this time, the vibration directions of the first diaphragm assembly 221 of the first speaker unit 2 and the second diaphragm assembly 321 of the second speaker unit 3 are opposite, and the vibrations generated by the two can cancel each other out, while the sound waves generated by the two can be superimposed.

[0172] Reference Figure 7 and Figure 8The first vibration system 22 includes at least two first voice coils 222, which are arranged perpendicular to the first direction. The first loudspeaker unit 2 also includes at least two first magnetic circuit systems 21, which are matched and correspond one-to-one with the first voice coils 222.

[0173] It should be noted that, in the embodiments of this application, the first magnetic circuit system 21 includes a first upper magnetic guide plate 211, a first upper magnet assembly 212, a first washer assembly 213, a first lower magnet assembly 214, and a first lower magnetic guide plate 215. The first speaker unit 2 includes at least two first magnetic circuit systems 21. Thus, the number of the first upper magnetic guide plate 211, the first upper magnet assembly 212, the first washer assembly 213, the first lower magnet assembly 214, and the first lower magnetic guide plate 215 of the first speaker unit 2 are each at least two.

[0174] Understandably, under the influence of the magnetic field of the first magnetic circuit system 21, the energized first voice coil 222 can reciprocate, thereby driving the first diaphragm assembly 221 to vibrate. Appropriately increasing the volume of the first magnetic circuit system 21 and the first voice coil 222 can enhance the vibration effect of the first diaphragm assembly 221, thereby improving the sound output of the first speaker unit 2. However, when the volume of the first magnetic circuit system 21 and the first voice coil 222 increases to a certain extent, the magnetic field at the center of the first magnetic circuit system 21 becomes difficult to utilize effectively. At this point, further increasing the volume of the first magnetic circuit system 21 and the first voice coil 222 will not significantly improve the sound output of the first speaker unit 2. In this case, if the first magnetic circuit system 21 is divided into two smaller first magnetic circuit systems 21, and the first voice coil 222 is correspondingly divided into two smaller second voice coils 322, the magnetic field between these two smaller first magnetic circuit systems 21 can also be fully utilized, further improving the sound output of the first speaker unit 2. Thus, while keeping the volume of the first loudspeaker unit 2 unchanged, reducing the volume of a single first magnetic circuit system 21 and a first voice coil 222, and increasing the number of first magnetic circuit systems 21 and first voice coils 222, can improve the utilization rate of the magnetic field and enhance the sound production effect.

[0175] In some embodiments, the second vibration system 32 includes at least two second voice coils 322 arranged perpendicular to the first direction, and the second loudspeaker unit 3 also includes at least two second magnetic circuit systems 31, which are matched and correspond one-to-one with the second voice coils 322.

[0176] Under the influence of the magnetic field of the second magnetic circuit system 31, the energized second voice coil 322 can reciprocate, thereby driving the second diaphragm assembly 321 to vibrate. Appropriately increasing the volume of the second magnetic circuit system 31 and the second voice coil 322 can enhance the vibration effect of the second diaphragm assembly 321, thereby improving the sound performance of the second speaker unit 3. However, when the volume of the second magnetic circuit system 31 and the second voice coil 322 increases to a certain extent, the magnetic field at the center of the second magnetic circuit system 31 becomes difficult to utilize effectively. At this point, further increasing the volume of the second magnetic circuit system 31 and the second voice coil 322 will not significantly improve the sound performance of the second speaker unit 3. In this case, if the second magnetic circuit system 31 is divided into two smaller second magnetic circuit systems 31, and the second voice coil 322 is correspondingly divided into two smaller second voice coils 322, the magnetic field between these two smaller second magnetic circuit systems 31 can also be fully utilized, further improving the sound performance of the second speaker unit 3. Thus, while keeping the volume of the second speaker unit 3 unchanged, reducing the volume of a single second magnetic circuit system 31 and a second voice coil 322, and increasing the number of second magnetic circuit systems 31 and second voice coils 322, can improve the utilization rate of the magnetic field and enhance the sound production effect.

[0177] The speaker module 700 of the electronic device 1000 provided in this application can be the speaker module 700 in any of the above embodiments. Since the speaker module 700 in any of the above embodiments sets the first sound outlet channel 103 on the side wall of the housing 1 parallel to the first direction, the central axis of the first sound outlet channel 103 can form an angle with the first direction. The inner wall of the first sound outlet channel 103 can visually block the first speaker unit 2 and the second speaker unit 3. That is, the housing 1 of the speaker module 700 can block the first speaker unit 2 and the second speaker unit 3. The housing 1 of the speaker module 700 can be directly used as a decorative structure. In this way, the electronic device 1000 does not need to set an additional decorative structure on the outside of the housing 1, thereby reducing the number of parts, improving the internal space utilization of the electronic device 1000, and realizing the thinner and smaller design of the electronic device 1000.

[0178] In some embodiments, the housing 200 is provided with a second sound outlet channel 800 that communicates with the first sound outlet channel 103 of the speaker module 700, and the central axis of the second sound outlet channel 800 is set at an angle to the central axis of the first sound outlet channel 103.

[0179] For example, the central axis of the second sound output channel 800 can be set perpendicular to the central axis of the first sound output channel 103, or at an acute angle, or at an obtuse angle.

[0180] The central axis of the second sound outlet channel 800 is set at an angle to the central axis of the first sound outlet channel 103. The inner wall of the second sound outlet channel 800 can visually cover the speaker module 700, thereby further reducing the exposure of the speaker module 700 and improving the overall appearance of the electronic device 1000.

[0181] The above description is merely a specific embodiment of this application, but 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 speaker module, characterized by It includes a housing (1) and a first speaker unit (2) and a second speaker unit (3) arranged in the housing (1) along a first direction; The first vibration system (22) of the first loudspeaker unit (2) and the second vibration system (32) of the second loudspeaker unit (3) are arranged opposite to each other. The first loudspeaker unit (2) and the second loudspeaker unit (3) are both connected to the first sound outlet channel (103). The first sound outlet channel (103) is used to export the sound emitted by the first loudspeaker unit (2) and the first loudspeaker unit (2). The first sound outlet channel (103) is disposed on the side wall of the enclosure (1) parallel to the first direction.

2. The speaker module of claim 1, wherein, The inner wall of the enclosure (1) and the first sound-emitting surface (2211) of the first speaker unit (2) and the second sound-emitting surface (3211) of the second speaker unit (3) form a front cavity (104), which is connected to the first sound outlet channel (103).

3. The speaker module of claim 2, wherein, The enclosure (1) is provided with a first rear cavity (101) separated from the front cavity (104). The first loudspeaker unit (2) further includes a first inner cavity (201) disposed on one side of the first sound-emitting surface (2211) and a first adjustment hole (231) communicating with the first inner cavity (201). The first adjustment hole (231) is communicating with the first rear cavity (101); and / or, The enclosure (1) is provided with a second rear cavity (102) that is separated from the front cavity (104). The second speaker unit (3) also includes a second inner cavity (301) disposed on one side of the second sound-emitting surface (3211) and a second adjustment hole (331) communicating with the second inner cavity (301). The second adjustment hole (331) is communicating with the second rear cavity (102).

4. The speaker module of claim 3, wherein, The first rear cavity (101), the first speaker unit (2), and the second rear cavity (102) are arranged sequentially along a direction perpendicular to the first direction.

5. The speaker module of claim 4, wherein, The inner sidewall of the box (1) is recessed to form a first adjustment channel (105), and at least a portion of the first adjustment hole (231) is connected to the first rear cavity (101) and the second rear cavity (102) through the first adjustment channel (105); The inner wall of the housing (1) is recessed to form a second adjustment channel (106), and at least a portion of the second adjustment hole (331) is connected to the first rear cavity (101) and the second rear cavity (102) through the second adjustment channel (106).

6. The speaker module of claim 4, wherein, The first speaker unit (2) and the second speaker unit (3) are combined to form a speaker assembly. A first partition (131) is provided inside the housing (1). The first partition (131) is disposed between the first rear cavity (101) and the speaker assembly. The first speaker unit (2) has a first side (232) facing the first partition (131), and the second speaker unit (3) has a second side (332) facing the first partition (131). The side of the first partition (131) facing the speaker assembly abuts against the first side (232) and the second side (332) respectively, so as to separate the first rear cavity (101) and the front cavity (104). The enclosure (1) is provided with a second partition (132), which is disposed between the second rear cavity (102) and the speaker assembly. The first speaker unit (2) has a third side (233) facing the second partition (132), and the second speaker unit (3) has a fourth side (333) facing the second partition (132). The second partition (132) abuts against the third side (233) and the fourth side (333) respectively, so as to separate the second rear cavity (102) and the front cavity (104).

7. The loudspeaker module of any of claims 1-6, wherein, The housing (1) includes: a middle frame (13), a first shell (11), and a second shell (12); The middle frame (13) is used to form a receiving space with the first housing (11) for accommodating the first speaker unit (2); the middle frame (13) is also used to form a receiving space with the second housing (12) for accommodating the second speaker unit (3), and the first sound outlet channel (103) is disposed on the middle frame (13).

8. The speaker module of claim 7, wherein, The middle frame (13) has a support (133) located between the first speaker unit (2) and the second speaker unit (3).

9. The speaker module of claim 8, wherein, The support (133) includes a first support surface (1331) and a second support surface (1332). The first support surface (1331) is used to support the first speaker unit (2), and the second support surface (1332) is used to support the second speaker unit (3).

10. The loudspeaker module of any of claims 1-9, wherein, The enclosure (1) has a first mounting surface (111) perpendicular to the first direction, and the first mounting surface (111) is provided with a first mounting hole (112), and at least a portion of the first speaker unit (2) is mounted in the first mounting hole (112); and / or, The enclosure (1) has a second mounting surface (121) perpendicular to the first direction, and the second mounting surface (121) is provided with a second mounting hole (122), and at least a portion of the second speaker unit (3) is mounted in the second mounting hole (122).

11. The loudspeaker module of any of claims 1-10, wherein, The first loudspeaker unit (2) and the second loudspeaker unit (3) are symmetrically arranged along the central axis of the first sound output channel (103).

12. The loudspeaker module of any one of claims 1-11, wherein, The first speaker unit (2) and the second speaker unit (3) are attached together.

13. The loudspeaker module of any of claims 1-12, wherein, The first vibration system (22) includes at least two first voice coils (222), which are arranged perpendicular to the first direction. The first loudspeaker unit (2) also includes at least two first magnetic circuit systems (21), which are matched and corresponding one-to-one with the first voice coils (222); and / or, The second vibration system (32) includes at least two second voice coils (322), which are arranged perpendicular to the first direction. The second loudspeaker unit (3) also includes at least two second magnetic circuit systems (31), which are matched and correspond one-to-one with the second voice coils (322).

14. An electronic device comprising a housing (200), characterized in that The housing (200) is provided with a speaker module (700) inside, and the speaker module (700) is the speaker module (700) according to any one of claims 1-13.

15. The electronic device of claim 14, wherein, The housing (200) is provided with a second sound outlet channel (800) that communicates with the first sound outlet channel (103) of the speaker module (700), and the central axis of the second sound outlet channel (800) is set at an angle to the central axis of the first sound outlet channel (103).

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