Speaker device and mobile terminal

Abstract

The present disclosure provides a speaker device and a mobile terminal. The speaker device includes a housing and a vibration component installed in the housing, and the vibration component includes a first vibration membrane, a second vibration membrane and an audio coil. The first vibration membrane is provided with an air vent, and the second vibration membrane is provided with at least two air vents, the at least two air vents are spaced apart and surround the air vent, and the first vibration membrane and the second vibration membrane adhere to each other and close the at least two air vents. When the audio coil moves relative to each other according to the audio signal, the first vibration membrane and the second vibration membrane are elastically deformed and partially separated under the drive of the audio coil, and the air vent and the at least two air vents form an air intake channel. The first vibration membrane and the second vibration membrane adhere to each other to form a closed structure, and can form an air intake channel under the drive of the audio coil, so that the air in the space on both sides of the vibration component flows, and the heat dissipation efficiency of the speaker device is high.

Description

Technical Field

[0001] The present disclosure belongs to the technical field of loudspeakers and relates to a loudspeaker device and a mobile terminal. Background Art

[0002] Mobile devices such as mobile phones are equipped with speaker devices for outputting sound information. The speaker device comprises a housing and a vibration assembly mounted within the housing. The vibration assembly comprises a voice coil holder, a diaphragm mounted to the voice coil holder, a magnetic component, and an audio coil mounted to the diaphragm. The audio coil receives the audio signal, generating an electromagnetic field that induction magnetically with the magnetic component, thereby driving the diaphragm to vibrate and produce sound.

[0003] As users demand higher loudness and sound quality from speaker devices, the power used by these devices is also increasing. This increased power enhances the magnetic induction between the audio coil and the magnetic components, which can lead to significant heat buildup in the speaker. However, to prevent front-to-back acoustic short-circuiting, existing speaker devices use a vibration mechanism that separates and disconnects the space within the housing. This concentrates heat generated by the vibration component within a certain area of the housing, resulting in poor air flow and a significant temperature rise in the speaker, which can even damage the device. Summary of the Invention

[0004] In view of this, the present disclosure provides a speaker device and a mobile terminal.

[0005] Specifically, the present disclosure is achieved through the following technical solutions:

[0006] According to a first aspect of an embodiment of the present disclosure, a speaker device is provided, comprising a housing and a vibration assembly mounted within the housing, the vibration assembly comprising a first vibration membrane, a second vibration membrane fixedly connected to the first vibration membrane, and an audio coil mounted on the first vibration membrane, the first vibration membrane having an air hole extending therethrough, the second vibration membrane having at least two air holes extending therethrough, the at least two air holes being spaced apart and surrounding the air hole, the first vibration membrane and the second vibration membrane being in contact with each other and enclosing the at least two air holes;

[0007] When the audio coil moves relatively according to the audio signal, the first vibration membrane and the second vibration membrane are elastically deformed and partially separated under the drive of the audio coil, and the air hole and the at least two air holes form an air intake channel.

[0008] In one embodiment, the first vibration membrane and the second vibration membrane are glued together to form a non-glued air-permeable area in the central area, and the air hole and the at least two air holes are both located within the air-permeable area.

[0009] In one embodiment, the breathable area is a circular area.

[0010] In one embodiment, the air hole is located at the center of the first vibrating membrane.

[0011] In one embodiment, the at least two ventilation holes are evenly distributed around the center line of the ventilation hole.

[0012] In one embodiment, the second diaphragm is located in a surrounding area of the audio coil.

[0013] In one embodiment, the audio coil is formed into a rectangular coil, and the shape of the second vibration membrane matches the audio coil.

[0014] In one embodiment, the vibration assembly includes a voice coil bracket and a magnetic component mounted on the voice coil bracket, the first vibration membrane is installed on the voice coil bracket, and the audio coil generates an electromagnetic field according to the audio signal, which magnetically induces the magnetic component and moves relative to the voice coil bracket to drive the first vibration membrane and the second vibration membrane to vibrate.

[0015] In one embodiment, the vibration component further includes a detection component, and the detection component is used to detect and correct the movement position of the audio coil.

[0016] In one embodiment, the vibration assembly divides the interior space of the housing into a front cavity space and a rear cavity space, and the housing includes an air inlet hole communicating with the front cavity space and an air outlet hole communicating with the rear cavity space;

[0017] When the air inlet passage is opened, air flows in along the air inlet hole and the air inlet passage and flows out from the air outlet hole.

[0018] In one embodiment, the housing is at least partially made of metal material, and the vibration component is thermally connected to the metal portion of the housing.

[0019] According to a second aspect of an embodiment of the present disclosure, a mobile terminal is provided, comprising:

[0020] processor;

[0021] a memory for storing processor-executable instructions;

[0022] Wherein, the mobile terminal further includes at least one speaker device as described above.

[0023] The technical solutions provided by the embodiments of the present disclosure can have the following beneficial effects:

[0024] The first vibration membrane and the second vibration membrane are attached to each other to form a closed structure, and can also form an air intake channel under the drive of the audio coil, so that the air in the space on both sides of the vibration component flows, and the heat dissipation efficiency of the speaker device is high.

[0025] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. 1 is a schematic cross-sectional structural diagram of a speaker device according to an exemplary embodiment.

[0027] Figure 2 is a schematic structural diagram of a vibration component according to an exemplary embodiment.

[0028] Figure 3 FIG1 is a schematic cross-sectional structural diagram showing a state in which a first vibration membrane and a second vibration membrane are bonded to each other according to an exemplary embodiment.

[0029] Figure 4 It is a schematic cross-sectional structural diagram showing the elastic deformation of the first vibration membrane and the second vibration membrane to form an air intake channel according to an exemplary embodiment.

[0030] Figure 5 FIG. 1 is a schematic diagram of a main structure of a first vibration membrane according to an exemplary embodiment.

[0031] Figure 6 is a schematic block diagram of a mobile terminal according to an exemplary embodiment.

[0032] Among them, the vibration component 10; the first vibration membrane 11; the air vent 111; the second vibration membrane 12; the air vent 121; the air permeable area 122; the audio coil 13; the voice coil bracket 14; the magnetic component 15; the casing 20; the front cavity space 21; the rear cavity space 22; the air inlet 23; the air outlet 24; the heat conductor 30; the mobile terminal 40; the processing component 41; the memory 42; the power supply component 43; the multimedia component 44; the audio component 45; the input / output (I / O) interface 46; the sensor component 47; the communication component 48; and the processor 49. DETAILED DESCRIPTION

[0033] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0034] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0035] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. In an alternative embodiment, without departing from the scope of this disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."

[0036] Figure 1 FIG. 1 is a schematic cross-sectional structural diagram of a speaker device according to an exemplary embodiment. Figure 2 FIG. 1 is a schematic structural diagram of a vibration assembly 10 according to an exemplary embodiment. Figure 1 and Figure 2 As shown, the speaker device includes a housing 20 and a vibration assembly 10 installed in the housing 20. The vibration assembly 10 includes a first vibration membrane 11, a second vibration membrane 12 fixedly connected to the first vibration membrane 11, and an audio coil 13 installed on the first vibration membrane 11. The first vibration membrane 11 is provided with a through-hole 111, and the second vibration membrane 12 is provided with at least two through-holes 121. The at least two through-holes 121 are spaced apart and surround the through-hole 111. The first vibration membrane 11 and the second vibration membrane 12 are in contact with each other and close the at least two through-holes 121.

[0037] When the audio coil 13 moves relative to each other according to the audio signal, the first vibration membrane 11 and the second vibration membrane 12 are elastically deformed and partially separated under the drive of the audio coil 13, and the air vent 111 and the at least two air vents 121 form an air intake channel.

[0038] The housing 20 is a hollow shell structure. The vibration assembly 10 is installed in the housing 20 and is in communication with the audio processor. The audio processor is used to output audio signals to the vibration assembly 10. The vibration assembly 10 divides the interior space of the housing 20 into a front cavity space 21 and a rear cavity space 22. In the initial state, air does not circulate in the front cavity space 21 and the rear cavity space 22.

[0039] The second vibration membrane 12 is fixed to the first vibration membrane 11, and the two are combined into an integral structure. Optionally, the two are bonded together by an adhesive. For example, the edge of the second vibration membrane 12 is bonded to the first vibration membrane 11, and other unbonded connection parts are fitted together to form a closed structure. Optionally, the second vibration membrane 12 is fixed to the first vibration membrane 11 by a molding process or a hot pressing process, so that the two are fixed together, and the unconnected parts of the second vibration membrane 12 and the first vibration membrane 11 can fit together.

[0040] In this embodiment, the first vibrating membrane 11 is provided with a through-hole 111, and the second vibrating membrane 12 is provided with at least two through-holes 121, and the through-holes 111 and 121 are staggered. The second vibrating membrane 12 and the first vibrating membrane 11 are in contact with each other, and the first vibrating membrane 11 can block all the through-holes 121, and the second vibrating membrane 12 can block the through-holes 111, so that the front cavity space 21 and the rear cavity space 22 on both sides of the vibration assembly 10 are disconnected.

[0041] like Figure 3 and Figure 4 As shown, the audio coil 13 generates an electromagnetic field based on the audio signal, which drives the first and second diaphragms 11, 12 to move, creating a vibration and sound-generating effect. As the audio coil 13 moves, the deformation of the first and second diaphragms 11, 12 differs, causing the contact area between the first and second diaphragms 11, 12 to separate, forming a deformation space. The air vents 111 and at least two vents 121 are connected to this deformation space, connecting the front and rear spaces 21, 22 on either side of the vibration assembly 10. Gas within the front space 21 can flow through the vents 121 into the deformation space and then into the rear space 22, completing the flow of gas and heat. When the audio coil 13 is in its reset state, the first and second diaphragms 11, 12 are in contact with each other, and the air vents 111 and 121 are closed, preventing gas flow. In an optional embodiment, the first vibration membrane 11 and the second vibration membrane 12 are made of elastic material and can bend and deform under the action of external force. For example, the first vibration membrane 11 and the second vibration membrane 12 are made of silicone material.

[0042] In an optional embodiment, the housing 20 includes an air inlet 23 communicating with the front cavity 21 and an air outlet 24 communicating with the rear cavity 22. When the speaker device is in a static state, gas in the space connected to the air inlet 23 can only enter the front cavity 21 and cannot flow into the rear cavity 22 through the vibration assembly 10. Similarly, gas in the rear cavity 22 can only be discharged through the air outlet 24 and cannot flow into the front cavity 21 through the vibration assembly 10.

[0043] When the audio coil 13 moves in response to the audio signal to open the air inlet passage, air flows along the air inlet hole 23 and the air inlet passage and out through the air outlet hole 24. High-temperature gas within the speaker assembly is rapidly discharged from the housing 20 through the air outlet hole 24, maintaining a stable operating temperature and ensuring good operating stability. The first diaphragm 11 and the second diaphragm 12 adhere to each other to form a closed structure. Driven by the audio coil 13, they form an air inlet passage, allowing air to flow between the two sides of the vibration assembly 10, resulting in efficient heat dissipation from the speaker assembly.

[0044] The second diaphragm 12 is fixed to the first diaphragm 11, and the two are combined into an integral structure. In one embodiment, the first diaphragm 11 and the second diaphragm 12 are glued together to form an un-glued air-permeable area 122 in the central area, and the air-permeable hole 111 and the at least two air-permeable holes 121 are both located within the air-permeable area 122.

[0045] The first vibrating membrane 11 and the second vibrating membrane 12 are glued together, and the joint between the two is controllable. Accordingly, the range of the air permeable area 122 formed by the two is controllable. The first vibrating membrane 11 and the second vibrating membrane 12 are not glued together only in the air permeable area 122. The two can separate during elastic deformation to form a deformation space for gas flow. The air holes 111 and the air holes 121 are both located in the air permeable area 122 so that the gas flow area is controllable. In an optional embodiment, the air permeable area 122 is a circular area so that the first vibrating membrane 11 and the second vibrating membrane 12 are subjected to balanced force during elastic deformation. Optionally, the air permeable area 122 is located in the central part of the first vibrating membrane 11 and the second vibrating membrane 12 so that when the audio coil 13 drives the first vibrating membrane 11 and the second vibrating membrane 12 to move, the deformation amount of the air permeable area 122 is controllable.

[0046] like Figure 5As shown, in one embodiment, the air hole 111 is located at the center of the first vibrating membrane 11, so that the gas can enter the center position of the air permeable area 122 along the air hole 111, and the air flow output is smooth. Optionally, the at least two air holes 121 are evenly distributed around the center line of the air hole 111, so that the gas in the deformation space can flow out evenly along the air hole 121, reducing noise and improving flow efficiency. For example, the number of air holes 121 can be set to 2, 3, 4, 5, 6, or 8, and the multiple air holes 121 are evenly distributed on a circle with the same radius with the center line of the air hole 111 as the axis. In one embodiment, the diameter of the air hole 111 is greater than the diameter of the air hole 121. For example, the diameter of the air hole 111 is set to D, where 1mm≤D≤3mm. The diameter of the air hole 121 is set to d, where 0.5mm≤d≤2mm. Specifically, the diameter of the air hole 111 is set to 2 mm, the number of the air holes 121 is set to 4, the diameter of each air hole 121 is set to 1 mm, and the four air holes 121 are evenly distributed on the second vibrating membrane 12 with the center line of the air hole 111 as the center.

[0047] The audio coil 13 is fixed to the first diaphragm 11 to drive the movement of the first diaphragm 11. The second diaphragm 12 is fixed to the first diaphragm 11 so that the two are tightly fitted. In one embodiment, the second diaphragm 12 is located within the area surrounding the audio coil 13. The audio coil 13 is configured as a ring-shaped structure that can generate an electromagnetic field with varying magnetic field strengths based on the audio signal. The second diaphragm 12 is located within the area surrounding the audio coil 13 to limit the range of the breathable area 122 to within the area surrounding the audio coil 13. This improves the gas flow efficiency in the space surrounded by the audio coil 13 and maintains a stable temperature of the audio coil 13. The second diaphragm 12 is confined within the audio coil 13, while the first diaphragm 11 can extend outward along the audio coil 13. During the movement of the audio coil 13, the first diaphragm 11 can elastically deform with the movement of the audio coil 13, and the elastic deformation is large. The second vibration membrane 12 is elastically deformed by the first vibration membrane 11 , and the deformation amount is reduced accordingly, so that the first vibration membrane 11 and the second vibration membrane 12 form a hollow deformation space in the air permeable area 122 , and the air intake channel is opened.

[0048] When the air intake channel is open, the first and second diaphragms 11, 12, driven by the audio coil 13, bulge toward the first diaphragm 11. The deformation space formed between the first and second diaphragms 11, 12 has a negative pressure, and gas outside the first diaphragm 11 enters the deformation space through the vents 121. When the audio coil 13 moves in the opposite direction, the first and second diaphragms 11, 12 come into contact with each other, closing the air intake channel and achieving one-way air flow.

[0049] The audio coil 13 can be wound into various annular structures to suit different application scenarios. For example, the audio coil 13 can be wound into a shape similar to a circular ring, an elliptical ring, a rectangular ring, a polygonal ring, etc. In an optional embodiment, the audio coil 13 is wound into a rectangular coil, and the shape of the second diaphragm 12 matches the audio coil 13.

[0050] The second diaphragm 12's shape matches the audio coil 13, maximizing its size within the audio coil 13. Consequently, the bonding area between the second diaphragm 12 and the first diaphragm 11 is maximized, enhancing the tightness of the connection. The breathable area 122 is located in the center of the audio coil 13, effectively dissipating heat from the audio coil 13.

[0051] The speaker device controls the vibration assembly 10 to vibrate based on the received audio signal, thereby outputting user-recognizable sound information. In one embodiment, the vibration assembly 10 includes a voice coil support 14, a magnetic member 15 mounted on the voice coil support 14, and the first diaphragm 11 is mounted on the voice coil support 14. The electromagnetic field generated by the audio signal, generated by the audio coil 13, magnetically senses the magnetic member 15 and moves relative to the voice coil support 14, thereby driving the first and second diaphragms 11 and 12 to vibrate.

[0052] The magnetic element 15 is mounted within the voice coil support 14 and faces the audio coil 13. The edges of the first diaphragm 11 are fixed to the voice coil support 14, and the audio coil 13 is mounted in the center of the first diaphragm 11. A magnetic gap is formed between the magnetic element 15 and the audio coil 13 support. The audio coil 13 interacts with the magnetic element 15 in response to the electromagnetic field generated by the audio signal, moving along the gap to adjust the vibration amplitude of the first diaphragm 11, thereby producing different sound effects.

[0053] In one embodiment, the vibration assembly 10 further includes a detection assembly, which is used to detect and correct the moving position of the audio coil 13. The detection assembly can detect the moving position of the audio coil 13 to adjust and correct the sound effect and sound quality output by the speaker device. In the process of vibration of the voice coil assembly, the first vibration membrane 11 and the second vibration membrane 12 form a unidirectional flow of gas, wherein the volume of gas pushed away by the outward vibration bulge of the first vibration membrane 11 is smaller than the volume of gas inhaled. The detection assembly detects the moving position of the audio coil 13 and compensates and corrects it through audio signals, DC bias and Displacementsense, so that the sound effect and sound quality output by the speaker device are of high quality and high power. The unidirectional flow of airflow can reduce the overall temperature rise of the speaker device and achieve good temperature control effect. In an optional embodiment, the speaker device further includes a temperature control assembly, which is used to detect the temperature of the vibration assembly 10 to keep the operating temperature of the speaker device stable.

[0054] like Figure 1 As shown, the housing 20 serves as the outer frame of the speaker device, which can be made of plastic material, and the vibration component 10 is installed in the housing 20. In order to improve the heat dissipation effect of the speaker device, the housing 20 can also be made of other materials or a combination of materials. In one embodiment, the housing 20 is at least partially made of metal material, and the vibration component 10 is thermally connected to the metal part of the housing 20. Metal has good thermal conductivity. A part or the whole of the housing 20 is made of metal material, and the heating part of the vibration component 10 is fitted with the metal part of the housing 20. The heat dissipation characteristics of the metal material are utilized to quickly dissipate heat, so as to keep the working temperature of the speaker device stable and have a good heat dissipation effect. Optionally, the vibration component 10 and the housing 20 can be connected by a heat-conducting member 30 such as a thermal adhesive or a thermal pad.

[0055] like Figure 1 and Figure 6 As shown, the speaker device disclosed in the above embodiment is applied to a mobile terminal to improve the audio loudness and sound quality requirements of the mobile terminal. In one embodiment, the mobile terminal includes: a processor; a memory for storing instructions executable by the processor; and at least one speaker device as described above. In an alternative embodiment, the mobile terminal 40 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, a translator, etc.

[0056] Mobile terminal 40 may include one or more of the following components: a processing component 41 , a memory 42 , a power component 43 , a multimedia component 44 , an audio component 45 , an input / output (I / O) interface 46 , a sensor component 47 , and a communication component 48 .

[0057] Processing component 41 generally controls the overall operation of mobile terminal 40, such as operations associated with display, phone calls, data communications, camera operation, and recording operations. Processing component 41 may include one or more processors 49 to execute instructions to perform all or part of the steps of the above-described method. In addition, processing component 41 may include one or more modules to facilitate interaction between processing component 41 and other components. In an alternative embodiment, processing component 41 may include a multimedia module to facilitate interaction between multimedia component 44 and processing component 41.

[0058] The memory 42 is configured to store various types of data to support operations on the mobile terminal 40. Examples of such data include instructions for any application or method operating on the mobile terminal 40, contact data, phone book data, messages, pictures, videos, etc. The memory 42 may be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory 42 (SRAM), electrically erasable programmable read-only memory 42 (EEPROM), erasable programmable read-only memory 42 (EPROM), programmable read-only memory 42 (PROM), read-only memory 42 (ROM), magnetic memory 42, flash memory 42, magnetic disk, or optical disk.

[0059] The power assembly 43 provides power to various components of the mobile terminal 40. The power assembly 43 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the mobile terminal 40.

[0060] The multimedia component 44 includes a screen that provides an output interface between the mobile terminal 40 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor can not only sense the boundaries of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 44 includes a front camera and / or a rear camera. When the mobile terminal 40 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have a focal length and optical zoom capability.

[0061] The audio component 45 is configured to output and / or input audio signals. In an optional embodiment, the audio component 45 includes a microphone (MIC) that is configured to receive external audio signals when the mobile terminal 40 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 42 or transmitted via the communication component 48. In some embodiments, the audio component 45 further includes a speaker for outputting audio signals.

[0062] The input / output (I / O) interface 46 provides an interface between the processing component 41 and peripheral interface modules, such as a keyboard, a click wheel, buttons, etc. These buttons may include but are not limited to: a home button, a volume button, a start button, and a lock button.

[0063] The sensor assembly 47 includes one or more sensors for providing various aspects of status assessment for the mobile terminal 40. In an optional embodiment, the sensor assembly 47 can detect the open / closed state of the device, the relative positioning of the components. In an optional embodiment, the components are the display and keypad of the mobile terminal 40. The sensor assembly 47 can also detect changes in the position of the mobile terminal 40 or a component of the mobile terminal 40, the presence or absence of user contact with the mobile terminal 40, the orientation or acceleration / deceleration of the mobile terminal 40, and temperature changes of the mobile terminal 40. The sensor assembly 47 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 47 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 47 may also include an accelerometer, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0064] The communication component 48 is configured to facilitate wired or wireless communication between the mobile terminal 40 and other devices. The mobile terminal 40 can access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G, 4G, or a combination thereof. In an exemplary embodiment, the communication component 48 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 48 also includes a near field communication (NFC) module to facilitate short-range communication. In an optional embodiment, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0065] In an exemplary embodiment, the mobile terminal 40 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors 49 (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors 49, or other electronic components to perform the above-described methods.

[0066] The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A speaker device, characterized in that The present invention comprises a housing and a vibration assembly installed in the housing, wherein the vibration assembly comprises a first vibration membrane, a second vibration membrane fixedly connected to the first vibration membrane, and an audio coil installed on the first vibration membrane, wherein the first vibration membrane is provided with a through-hole, and the second vibration membrane is provided with at least two through-holes, wherein the at least two ventilation holes are spaced apart and surround the ventilation hole, and the ventilation holes are staggered with each other, and the first vibration membrane and the second vibration membrane are attached to each other and close the at least two ventilation holes, so that the first vibration membrane can close all the ventilation holes and the second vibration membrane can close the ventilation hole; When the audio coil moves relative to the first diaphragm according to the audio signal, the contact portion between the first diaphragm and the second diaphragm is elastically deformed and partially separated under the drive of the audio coil to form a deformation space, and the air vent and the at least two air vents are respectively connected to the deformation space to form an air intake channel; The vibration assembly divides the interior space of the housing into a front cavity space and a rear cavity space, and the housing includes an air inlet hole communicating with the front cavity space and an air outlet hole communicating with the rear cavity space; When the air inlet passage is opened, air flows in along the air inlet hole and the air inlet passage and flows out from the air outlet hole.

2. The speaker device according to claim 1, wherein The first vibration membrane and the second vibration membrane are glued together to form a non-glued air-permeable area in the central area, and the air hole and the at least two air holes are both located within the air-permeable area.

3. The speaker device according to claim 2, wherein The air permeable area is a circular area.

4. The speaker device according to claim 1, wherein The air hole is located at the center of the first vibration membrane.

5. The speaker device according to claim 3, wherein The at least two ventilation holes are evenly distributed around the center line of the ventilation hole.

6. The speaker device according to claim 1, wherein The second diaphragm is located in a surrounding area of the audio coil.

7. The speaker device according to claim 1, wherein The audio coil is wrapped around to form a rectangular coil, and the shape of the second vibration membrane matches the audio coil.

8. The speaker device according to claim 1, wherein The vibration assembly includes a voice coil bracket and a magnetic part assembled on the voice coil bracket. The first vibration membrane is installed on the voice coil bracket. The audio coil generates an electromagnetic field according to the audio signal, which magnetically induces the magnetic part and moves relative to the voice coil bracket to drive the first vibration membrane and the second vibration membrane to vibrate.

9. The speaker device according to claim 8, wherein The vibration component further includes a detection component, which is used to detect and correct the moving position of the audio coil.

10. The speaker device according to claim 1, wherein The housing is at least partially made of metal material, and the vibration component is thermally connected to the metal portion of the housing.

11. A mobile terminal, characterized in that: The mobile terminal includes: processor; a memory for storing processor-executable instructions; Wherein, the mobile terminal further comprises at least one speaker device according to any one of claims 1-10.

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