CN210670547U - Speaker device and mobile terminal - Google Patents
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- CN210670547U CN210670547U CN201922020565.7U CN201922020565U CN210670547U CN 210670547 U CN210670547 U CN 210670547U CN 201922020565 U CN201922020565 U CN 201922020565U CN 210670547 U CN210670547 U CN 210670547U
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Abstract
The present disclosure provides a speaker device and a mobile terminal. The speaker device includes a cabinet and a vibration assembly installed in the cabinet, the vibration assembly including a first diaphragm, a second diaphragm, and an audio coil. The first vibrating diaphragm is provided with air holes, the second vibrating diaphragm is provided with at least two air holes, the at least two air holes are distributed at intervals and surround the air holes, and the first vibrating diaphragm and the second vibrating diaphragm are mutually attached and sealed with the at least two air holes. When the audio coil moves relatively according to the audio signal, the first vibration film and the second vibration film are elastically deformed and are locally separated under the driving of the audio coil, and the air holes and the at least two air holes form an air inlet channel. First vibrating diaphragm and second vibrating diaphragm laminate each other in order to form enclosed construction, can form inlet channel again under the drive of audio coil for the space gas of vibration subassembly both sides flows, and speaker device's radiating efficiency is high.
Description
Technical Field
The disclosure belongs to the technical field of loudspeakers, and relates to a loudspeaker device and a mobile terminal.
Background
Mobile terminals such as mobile phones are provided with speaker devices for outputting sound information. The loudspeaker device comprises a machine shell and a vibration assembly arranged in the machine shell, wherein the vibration assembly comprises a voice coil bracket, a vibration membrane and a magnetic part which are arranged on the voice coil bracket, and an audio coil arranged on the vibration membrane. Magnetic induction is formed between an electromagnetic field formed by the audio coil receiving the audio signal and the magnetic piece, so that the vibration film is driven to vibrate and sound.
As the user's audio loudness and sound quality requirements of a speaker device increase, the power used by the speaker device increases. The power of the speaker device is increased, the magnetic induction between the audio coil and the magnetic member is enhanced, and the heat lifting amount of the speaker device is easily increased. However, in order to avoid the short circuit phenomenon of front and back sound, the vibration device separates and does not connect the space in the cabinet, so that the heat generated by the vibration component is concentrated in part of the space in the cabinet, the air flow performance is poor, the temperature rise of the speaker device is obvious, and even the speaker device is damaged.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present disclosure provides a speaker device and a mobile terminal.
Specifically, the present disclosure is realized by the following technical solutions:
according to a first aspect of the embodiments of the present disclosure, a speaker device is provided, which includes a housing and a vibration assembly installed in the housing, where the vibration assembly includes a first diaphragm, a second diaphragm fixedly connected to the first diaphragm, and an audio coil installed in the first diaphragm, the first diaphragm is provided with a through vent, the second diaphragm is provided with at least two through vents, the at least two through vents are distributed at intervals and surround the vent, and the first diaphragm and the second diaphragm are attached to each other and seal the at least two through vents;
when the audio coil moves relatively according to the audio signal, the first vibration film and the second vibration film are elastically deformed and are locally separated under the driving of the audio coil, and the air holes and the at least two air holes form an air inlet channel.
In one embodiment, the first and second diaphragms are adhesively connected and form an unbonded air permeable area in the central area, and the air permeable hole and the at least two air permeable holes are located in the range of the air permeable area.
In one embodiment, the air permeable region is a circular region.
In one embodiment, the vent is located at the center of the first diaphragm.
In one embodiment, the at least two vent holes are uniformly distributed around the center line of the vent hole.
In an embodiment, the second diaphragm is located within a surrounding area of the audio coil.
In one embodiment, the audio coil is surrounded by a rectangular coil, and the shape of the second diaphragm is matched with that of the audio coil.
In an embodiment, the vibration assembly includes a voice coil support and a magnetic member mounted on the voice coil support, the first diaphragm is mounted on the voice coil support, and the audio coil magnetically induces an electromagnetic field generated according to an audio signal with the magnetic member and moves relative to the voice coil support to drive the first diaphragm and the second diaphragm to vibrate.
In one embodiment, the vibration assembly further comprises a detection assembly for detecting and correcting the moving position of the audio coil.
In one embodiment, the vibration component divides the inner space of the casing into a front cavity space and a rear cavity space, and the casing comprises an air inlet communicated with the front cavity space and an air outlet communicated with the rear cavity space;
when the air inlet channel is opened, airflow flows in along the air inlet hole and the air inlet channel and flows out of the air outlet hole.
In one embodiment, the housing is at least partially made of a metal material, and the vibration assembly is in heat-conducting connection with the metal part of the housing.
According to a second aspect of the embodiments of the present disclosure, there is provided a mobile terminal, including:
a processor;
a memory for storing processor-executable instructions;
wherein the mobile terminal further comprises at least one speaker arrangement as described above.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:
first vibrating diaphragm and second vibrating diaphragm laminate each other in order to form enclosed construction, can form inlet channel again under the drive of audio coil for the space gas of vibration subassembly both sides flows, and speaker device's radiating efficiency is high.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
Fig. 1 is a schematic cross-sectional structure diagram of a speaker device shown according to an exemplary embodiment.
FIG. 2 is a schematic diagram of a vibration assembly shown in accordance with an exemplary embodiment.
Fig. 3 is a schematic cross-sectional structural view illustrating a state in which a first diaphragm and a second diaphragm are attached to each other according to an exemplary embodiment.
Fig. 4 is a schematic cross-sectional structure diagram illustrating elastic deformation of first and second diaphragms to form an intake passage according to an exemplary embodiment.
Fig. 5 is a schematic front view of a first diaphragm according to an exemplary embodiment.
Fig. 6 is a schematic block diagram of a mobile terminal shown in accordance with an example embodiment.
Wherein the vibration assembly 10; a first diaphragm 11; air holes 111; a second diaphragm 12; a vent hole 121; a breathable region 122; an audio coil 13; a voice coil former 14; a magnetic member 15; a housing 20; a front chamber space 21; a rear cavity space 22; an air intake hole 23; an air outlet hole 24; a heat conductive member 30; a mobile terminal 40; a processing assembly 41; a memory 42; a power supply assembly 43; a multimedia component 44; an audio component 45; an input/output (I/O) interface 46; an imaging assembly 47; a communication component 48; a processor 49.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations 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.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," 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.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. In an alternative embodiment, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
Fig. 1 is a schematic cross-sectional structure diagram of a speaker device shown according to an exemplary embodiment. Fig. 2 is a schematic diagram illustrating the construction of the vibration assembly 10 according to an exemplary embodiment. As shown in fig. 1 and 2, the speaker device includes a cabinet 20 and a vibration assembly 10 installed in the cabinet 20, wherein the vibration assembly 10 includes a first diaphragm 11, a second diaphragm 12 fixedly connected to the first diaphragm 11, and an audio coil 13 installed in the first diaphragm 11. First vibrating diaphragm 11 is equipped with bleeder vent 111 that runs through, second vibrating diaphragm 12 is equipped with two at least air vents 121 that run through, two at least air vents 121 interval distribution just centers on bleeder vent 111, first vibrating diaphragm 11 with second vibrating diaphragm 12 laminates each other and seals two at least air vents 121.
When the audio coil 13 moves relatively according to an audio signal, the first diaphragm 11 and the second diaphragm 12 are elastically deformed and partially separated under the driving of the audio coil 13, and the air holes 111 and the at least two air holes 121 form an air inlet channel.
The casing 20 is a hollow shell structure, and the vibration component 10 is installed in the casing 20 and is connected to an audio processor for outputting audio signals to the vibration component 10. The vibration module 10 partitions the inner space of the casing 20 into a front chamber space 21 and a rear chamber space 22, and air in the front chamber space 21 and the rear chamber space 22 is not circulated in an initial state.
The second diaphragm 12 is fixed to the first diaphragm 11, and the two are integrated into one structure. Optionally, the two are connected into a whole by cementing agent. For example, the edge of the second diaphragm 12 is adhesively bonded to the first diaphragm 11, and the other non-adhesively bonded portions are attached to each other to form a closed structure. Alternatively, the second diaphragm 12 is fixed to the first diaphragm 11 through a molding process or a thermal compression process so that the two are fixed into a whole, and the unconnected portions of the second diaphragm 12 and the first diaphragm 11 can be attached to each other.
In the present embodiment, the first diaphragm 11 is provided with a vent hole 111 therethrough, the second diaphragm 12 is provided with at least two vent holes 121 therethrough, and the vent hole 111 and the vent hole 121 are distributed in a staggered manner. The second diaphragm 12 and the first diaphragm 11 are attached to each other, the first diaphragm 11 can seal all the vent holes 121, and the second diaphragm 12 can seal the vent holes 111, so that the front cavity space 21 and the rear cavity space 22 on both sides of the vibration assembly 10 are not communicated.
As shown in fig. 3 and 4, the audio coil 13 forms an electromagnetic field according to the audio signal, so as to move the first diaphragm 11 and the second diaphragm 12, thereby creating an effect of generating sound by vibration. With the movement of the audio coil 13, the deformation amounts of both the first diaphragm 11 and the second diaphragm 12 are different, so that the bonded portions of the first diaphragm 11 and the second diaphragm 12 are separated and form a deformation space. The ventilation hole 111 and at least two ventilation holes 121 are respectively communicated with the deformation space to communicate the front cavity space 21 and the rear cavity space 22 of both sides of the vibration assembly 10. The gas in the front chamber space 21 can enter the deformation space along the vent hole 121 and then flow into the rear chamber space 22 from the vent hole 121, completing the circulation of the gas and the flow of heat. When the audio coil 13 is in the reset state, the first diaphragm 11 and the second diaphragm 12 are bonded to each other, and the vent hole 111 and the vent hole 121 are in the closed state, so that the air cannot flow. In an alternative embodiment, the first diaphragm 11 and the second diaphragm 12 are made of an elastic material, and can be bent and deformed by an external force. For example, the first diaphragm 11 and the second diaphragm 12 are made of a silicon material.
In an alternative embodiment, the casing 20 includes an air inlet hole 23 communicating with the front chamber space 21 and an air outlet hole 24 communicating with the rear chamber space 22. When the loudspeaker device is in a rest state, air in the space communicated with the air inlet hole 23 can only enter the front cavity space 21 and can not flow into the rear cavity space 22 through the vibration assembly 10. Likewise, gas in the rear chamber space 22 can only escape through the gas outlet holes 24 and cannot flow through the vibration module 10 into the front chamber space 21.
When the audio coil 13 moves according to an audio signal to open the intake passage, an air flow flows in along the intake holes 23 and the intake passage and flows out from the outlet holes 24. The high temperature gas in the speaker device is rapidly discharged out of the cabinet 20 through the gas outlet 24 to maintain stable working temperature and good working stability of the speaker device. The first diaphragm 11 and the second diaphragm 12 are attached to each other to form a closed structure, and an air inlet channel can be formed under the driving of the audio coil 13, so that air flows in the spaces at the two sides of the vibration assembly 10, and the heat dissipation efficiency of the speaker device is high.
The second diaphragm 12 is fixed to the first diaphragm 11, and the two are integrated into one structure. In one embodiment, the first diaphragm 11 and the second diaphragm 12 are bonded and form a ventilation area 122 in the central area, and the ventilation hole 111 and the at least two ventilation holes 121 are located in the range of the ventilation area 122.
The first diaphragm 11 and the second diaphragm 12 are adhesively bonded, and the bonding position between the two is controllable, and accordingly, the range of the air permeable region 122 formed by the two is controllable. The first diaphragm 11 and the second diaphragm 12 are not adhesively connected only at the ventilation area 122, and can be separated to form a deformation space for gas to flow when elastically deformed, and the ventilation hole 111 and the ventilation hole 121 are both located in the ventilation area 122, so that the gas flow area is controllable. In an alternative embodiment, the air permeable area 122 is a circular area, so that the forces are balanced when the first diaphragm 11 and the second diaphragm 12 are elastically deformed. Optionally, the ventilation area 122 is located in a central portion of the first diaphragm 11 and the second diaphragm 12, so that when the audio coil 13 drives the first diaphragm 11 and the second diaphragm 12 to move, a deformation amount of the ventilation area 122 is controllable.
As shown in fig. 5, in one embodiment, the ventilation hole 111 is located at the center of the first diaphragm 11, so that gas can enter the center of the ventilation area 122 along the ventilation hole 111 and the gas flow output is smooth. Optionally, the at least two vent holes 121 are uniformly distributed around the center line of the vent hole 111, so that the gas in the deformation space can uniformly flow out along the vent holes 121, noise is reduced, and the flow efficiency is improved. For example, the number of the vent holes 121 may be 2, 3, 4, 5, 6, or 8, and the plurality of vent holes 121 are uniformly distributed on the circumference of the same radius with the center line of the vent hole 111 as an axis. In one embodiment, the diameter of the vent 111 is larger than the diameter of the vent 121. For example, the diameter of the ventilation holes 111 is set to D, wherein D is 1mm ≦ D ≦ 3 mm. The diameter of the vent hole 121 is d, and d is more than or equal to 0.5mm and less than or equal to 2 mm. Specifically, the diameter of the vent hole 111 is set to 2mm, the number of the vent holes 121 is set to 4, the diameter of each vent hole 121 is set to 1mm, and the 4 vent holes 121 are uniformly distributed in the second diaphragm 12 with the center line of the vent hole 111 as the center.
The audio coil 13 is fixed to the first diaphragm 11 to move the first diaphragm 11. The second diaphragm 12 is fixed to the first diaphragm 11 so as to be closely attached thereto. In one embodiment, the second diaphragm 12 is located within a surrounding area of the audio coil 13. The audio coil 13 is provided in a ring-shaped configuration, which is capable of forming an electromagnetic field having different magnetic field strengths in accordance with an audio signal. The second diaphragm 12 is located within the surrounding range of the audio coil 13 to define the range of the air-permeable area 122 within the surrounding range of the audio coil 13, and the gas flow efficiency at the space surrounded by the audio coil 13 is improved to keep the temperature of the audio coil 13 stable. The second diaphragm 12 is defined within the audio coil 13 and the first diaphragm 11 can extend outwardly along the audio coil 13. During the movement of the audio coil 13, the first diaphragm 11 can be elastically deformed with the movement of the audio coil 13, and the amount of elastic deformation is large. The second diaphragm 12 is elastically deformed by the first diaphragm 11, and the deformation amount is correspondingly reduced, so that the first diaphragm 11 and the second diaphragm 12 form a hollow deformation space at the ventilation area 122, and the air inlet channel is opened.
In the opening process of the air inlet channel, the first vibration film 11 and the second vibration film 12 are driven by the audio coil 13 to protrude towards the first vibration film 11, the deformation space formed between the first vibration film 11 and the second vibration film 12 is negative pressure, and the gas outside the first vibration film 11 enters the deformation space along the vent hole 121. And when the voice coil 13 moves in the reverse direction, the first diaphragm 11 and the second diaphragm 12 are attached to each other so that the intake passage is closed to realize the unidirectional flow of gas.
The audio coil 13 can be wound in different ring structures to adapt to different application scenarios. For example, the audio coil 13 is wound to approximate a circular ring, an ellipse, a rectangle, a polygon, or the like. In an alternative embodiment, the audio coil 13 is surrounded by a rectangular coil, and the shape of the second diaphragm 12 matches the shape of the audio coil 13.
The second diaphragm 12 is contoured to the audio coil 13 to maximize the size of the second diaphragm 12 within the audio coil 13. Accordingly, the bonding area of the second diaphragm 12 and the first diaphragm 11 is maximized, and the bonding tightness of both is improved. The ventilation area 122 is located in the central area surrounded by the audio coil 13, and the heat dissipation effect of the audio coil 13 is good.
The speaker device controls the vibration assembly 10 to vibrate according to the received audio signal to output sound information recognizable to the user. In one embodiment, the vibration assembly 10 includes a voice coil frame 14, a magnetic member 15 mounted to the voice coil frame 14, and the first diaphragm 11 mounted to the voice coil frame 14. The audio coil 13 magnetically induces the magnetic field generated by the audio signal with the magnetic member 15 and moves relative to the voice coil bracket 14, so as to drive the first diaphragm 11 and the second diaphragm 12 to vibrate.
The magnetic member 15 is installed in the voice coil bobbin 14 and is disposed opposite to the voice coil 13. The edge of the first diaphragm 11 is fixed to a voice coil holder 14, and an audio coil 13 is mounted to a central region of the first diaphragm 11. A magnetic gap is formed between the magnetic member 15 and the audio coil 13, and an electromagnetic field formed by the audio coil 13 according to an audio signal interacts with the magnetic member 15 and moves along the magnetic gap to adjust the vibration amplitude of the first diaphragm 11, thereby forming different sound effects.
In an embodiment, the vibration assembly 10 further comprises a detection assembly for detecting and correcting the movement position of the audio coil 13. The detection component can detect the moving position of the audio coil 13 so as to adjust and correct the sound effect and the tone quality output by the loudspeaker device. Wherein, the first diaphragm 11 and the second diaphragm 12 form a unidirectional flow of gas during vibration with the voice coil assembly, wherein the volume of the gas pushed away by the outward vibration bulge of the first diaphragm 11 is smaller than the volume of the gas sucked in. The detecting component detects the moving position of the audio coil 13, and performs compensation and correction through the audio signal, the dc offset and the displasense, so that the sound effect and quality of the output sound of the speaker device are high, and the power is high. The unidirectional flow of the air flow can raise the temperature of the whole loudspeaker device, and the temperature control effect is good. In an optional embodiment, the speaker apparatus further comprises a temperature control component for detecting the temperature of the vibration component 10 to keep the operating temperature of the speaker apparatus stable.
As shown in fig. 1, a cabinet 20, which serves as an outer frame of the speaker device, may be made of a plastic material, and the vibration assembly 10 is installed in the cabinet 20. In order to improve the heat dissipation effect of the speaker device, the housing 20 may be made of other materials or may be formed by combining and processing. In one embodiment, the housing 20 is at least partially made of a metal material, and the vibration assembly 10 is thermally connected to the metal portion of the housing 20. The metal has good heat-conducting property, a part or the whole of the casing 20 is made of metal material, the heating part of the vibration component 10 is attached to the metal part of the casing 20, and the heat is quickly dissipated by utilizing the heat dissipation characteristic of the metal material, so that the working temperature of the loudspeaker device is kept stable, and the heat dissipation effect is good. Alternatively, the vibration assembly 10 and the housing 20 may be connected by a heat conducting member 30 such as a heat conducting adhesive or a heat conducting pad.
As shown in fig. 1 and 6, 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 processor-executable instructions; wherein the mobile terminal further comprises at least one speaker arrangement as described above. In an alternative embodiment, the mobile terminal 40 may be a mobile phone, computer, digital broadcast terminal, messaging device, game console, tablet device, medical device, fitness device, personal digital assistant, translator, or the like.
The 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.
The processing component 41 generally controls overall operation of the mobile terminal 40, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 41 may include one or more processors 49 to execute instructions to perform all or a portion of the steps of the methods described above. Further, processing component 41 may include one or more modules that facilitate interaction between processing component 41 and other components. In an alternative embodiment, the processing component 41 may include a multimedia module to facilitate interaction between the multimedia component 44 and the processing component 41.
The memory 42 is configured to store various types of data to support operation at the mobile terminal 40. Examples of such data include instructions for any application or method operating on the mobile terminal 40, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 42 may be implemented by any type or combination of volatile or non-volatile memory devices, 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, a magnetic or optical disk.
The power supply component 43 provides power to the various components of the mobile terminal 40. The power components 43 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the mobile terminal 40.
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 an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary 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 facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the mobile terminal 40 is in an operation mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
An input/output (I/O) interface 46 provides an interface between the processing component 41 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The sensor assembly 47 includes one or more sensors for providing various aspects of status assessment for the mobile terminal 40. In an alternative embodiment, the sensor assembly 47 may detect the on/off status of the device, the relative positioning of the components, in an alternative embodiment the components are a display and keypad of the mobile terminal 40, the sensor assembly 47 may also detect a change 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, orientation or acceleration/deceleration of the mobile terminal 40, and a change in the temperature of the mobile terminal 40. The sensor assembly 47 may include a proximity sensor configured to detect the presence of a nearby object without 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 acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 48 is configured to facilitate communications between the mobile terminal 40 and other devices in a wired or wireless manner. The mobile terminal 40 may access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G, or a combination thereof. In an exemplary embodiment, the communication component 48 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 48 further includes a Near Field Communication (NFC) module to facilitate short-range communications. In an alternative embodiment, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
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, micro-controllers, microprocessors 49 or other electronic components for performing the above-described methods.
The present disclosure is to be considered as limited only by the preferred embodiments and not limited to the specific embodiments described herein, and all changes, equivalents, and modifications that come within the spirit and scope of the disclosure are desired to be protected.
Claims (12)
1. A loudspeaker device is characterized by comprising a machine shell and a vibration assembly arranged in the machine shell, wherein the vibration assembly comprises a first vibration membrane, a second vibration membrane fixedly connected with the first vibration membrane and an audio coil arranged on the first vibration membrane, the first vibration membrane is provided with a through air hole, the second vibration membrane is provided with at least two through air holes, the at least two air holes are distributed at intervals and surround the air hole, and the first vibration membrane and the second vibration membrane are mutually attached and seal the at least two air holes;
when the audio coil moves relatively according to the audio signal, the first vibration film and the second vibration film are elastically deformed and are locally separated under the driving of the audio coil, and the air holes and the at least two air holes form an air inlet channel.
2. The loudspeaker assembly of claim 1 wherein the first and second diaphragms are adhesively bonded and form an unbonded air permeable region in a central region, the air permeable vent and the at least two air permeable vents being located within the air permeable region.
3. A loudspeaker device according to claim 2, wherein the air permeable region is a circular region.
4. The speaker device according to claim 1, wherein the ventilation hole is located at a center of the first diaphragm.
5. The speaker device of claim 3 wherein the at least two vent holes are evenly distributed around a centerline of the vent hole.
6. The speaker device of claim 1, wherein the second diaphragm is located within a surrounding area of the audio coil.
7. The speaker device of claim 1 wherein the audio coil is a rectangular coil around which the second diaphragm is contoured to match the audio coil.
8. The speaker device of claim 1, wherein the vibration assembly comprises a voice coil support and a magnetic member mounted to the voice coil support, the first diaphragm is mounted to the voice coil support, and the audio coil is magnetically induced by an electromagnetic field generated by an audio signal and the magnetic member and moves relative to the voice coil support to drive the first diaphragm and the second diaphragm to vibrate.
9. The speaker device of claim 8, wherein the vibration assembly further comprises a detection assembly for detecting and correcting a movement position of the audio coil.
10. The speaker device according to claim 1, wherein the vibration member partitions an inner space of the cabinet into a front chamber space and a rear chamber space, the cabinet including an air inlet hole communicating with the front chamber space and an air outlet hole communicating with the rear chamber space;
when the air inlet channel is opened, airflow flows in along the air inlet hole and the air inlet channel and flows out of the air outlet hole.
11. A loudspeaker device according to claim 1, wherein the cabinet is at least partly made of a metallic material, and the vibration member is in heat-conducting connection with a metallic part of the cabinet.
12. A mobile terminal, characterized in that the mobile terminal comprises:
a processor;
a memory for storing processor-executable instructions;
wherein the mobile terminal further comprises at least one speaker arrangement according to any of claims 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922020565.7U CN210670547U (en) | 2019-11-19 | 2019-11-19 | Speaker device and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922020565.7U CN210670547U (en) | 2019-11-19 | 2019-11-19 | Speaker device and mobile terminal |
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| CN210670547U true CN210670547U (en) | 2020-06-02 |
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| CN201922020565.7U Active CN210670547U (en) | 2019-11-19 | 2019-11-19 | Speaker device and mobile terminal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111901732A (en) * | 2020-06-24 | 2020-11-06 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN113114808A (en) * | 2021-04-07 | 2021-07-13 | 维沃移动通信有限公司 | Electronic equipment and vibration module |
| CN115209320A (en) * | 2021-04-01 | 2022-10-18 | 苹果公司 | Ventilation type audio transducer |
-
2019
- 2019-11-19 CN CN201922020565.7U patent/CN210670547U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111901732A (en) * | 2020-06-24 | 2020-11-06 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| CN111901732B (en) * | 2020-06-24 | 2021-04-27 | 瑞声科技(新加坡)有限公司 | Loudspeaker |
| WO2021258418A1 (en) * | 2020-06-24 | 2021-12-30 | 瑞声声学科技(深圳)有限公司 | Loudspeaker |
| CN115209320A (en) * | 2021-04-01 | 2022-10-18 | 苹果公司 | Ventilation type audio transducer |
| CN113114808A (en) * | 2021-04-07 | 2021-07-13 | 维沃移动通信有限公司 | Electronic equipment and vibration module |
| CN113114808B (en) * | 2021-04-07 | 2024-02-02 | 维沃移动通信有限公司 | Electronic equipment and vibration module |
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