CN210157380U - Multimedia device and mobile terminal - Google Patents

Abstract

The present disclosure provides a multimedia device and a mobile terminal, the multimedia device includes a casing and a vibration kernel component installed in the casing. The casing comprises a heat dissipation part positioned on the surface, and the multimedia device further comprises a heat conduction member which is in heat conduction connection with the vibration core assembly and the heat dissipation part so as to guide heat generated by the heating part of the vibration core assembly to the heat dissipation part. The heat conducting piece guides heat generated by the vibrating core assembly to the radiating portion, and radiating treatment is carried out on the surface of the radiating portion, so that the radiating area is large. The heat conducting piece guides the heat inside the shell to the surface of the shell for heat dissipation, so that the integral temperature rise of the inner space of the shell is avoided, the temperature rise of the vibration kernel assembly is small, and the sound effect of the multimedia device is good.

Description

Multimedia device and mobile terminal

Technical Field

The disclosure belongs to the technical field of electronic equipment, and relates to a multimedia device and a mobile terminal.

Background

The mobile terminal is provided with multimedia devices, such as a loudspeaker, a microphone and the like. For example, a speaker is provided in a mobile terminal such as a mobile phone, and the speaker is provided with a vibration core assembly, when the amplitude of the vibration core assembly increases, the amount of heat generated by the vibration core assembly increases accordingly, and accordingly, the temperature of a voice coil in the vibration core assembly increases. However, the voice coil temperature rise is liable to cause failure of the voice coil.

In the correlation technique, the mobile terminal adjusts the temperature rise working condition of the voice coil by setting a temperature protection mode, so that the phenomenon that the voice coil is unreliable is avoided. The temperature protection mode is as follows: when an increase in the temperature of the voice coil is detected, the software controls the amplitude of the vibrating core assembly to reduce heating of the voice coil. However, as the amplitude of the vibration kernel component is reduced, the sound effect output by the multimedia device is affected accordingly, and the desired effect cannot be achieved, so that the user experience is poor.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present disclosure provides a multimedia 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, there is provided a multimedia device, including a casing and a vibrating core assembly installed in the casing, wherein the casing includes a heat dissipation portion located on a surface, and the multimedia device further includes a heat conduction member thermally connecting the vibrating core assembly and the heat dissipation portion to guide heat generated by a heat generation portion of the vibrating core assembly to the heat dissipation portion.

In one embodiment, the heat conducting member is fixedly connected with the heat dissipating portion.

In one embodiment, the heat conducting member is integrally formed with the heat dissipating portion; or, the heat conducting piece is detachably connected to the heat radiating part.

In an embodiment, the casing further includes a plastic portion fixedly disposed on the heat dissipating portion, and the heat conducting member is assembled to the plastic portion.

In one embodiment, the plastic part is molded to the heat conducting member; or the heat conducting piece is detachably connected with the plastic part.

In one embodiment, the heat conducting member is directly attached to the heat generating portion of the vibration core assembly.

In one embodiment, the heat conducting member is connected with the heat generating portion of the vibration core assembly in a heat conducting manner through a heat conducting medium.

In one embodiment, the heat conducting medium may be a heat conducting glue or a heat conducting pad.

In one embodiment, the vibration core assembly comprises a metal bracket and a vibration main body mounted on the metal bracket, and the heat conduction piece is in heat conduction connection with the metal bracket.

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 multimedia device as described above.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

the heat conducting piece guides heat generated by the vibrating core assembly to the radiating portion, and radiating treatment is carried out on the surface of the radiating portion, so that the radiating area is large. The heat conducting piece guides the heat inside the shell to the surface of the shell for heat dissipation, so that the integral temperature rise of the inner space of the shell is avoided, the temperature rise of the vibration kernel assembly is small, and the sound effect of the multimedia device is good.

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 diagram illustrating a structure of a multimedia device according to an exemplary embodiment.

Fig. 2 is a schematic cross-sectional view of a multimedia device at a vibration core assembly according to an exemplary embodiment.

Fig. 3 is an enlarged schematic structural view illustrating a heat conductive member integrally formed with a heat dissipation portion according to an exemplary embodiment.

Fig. 4 is an enlarged schematic view illustrating a heat-conducting member detachably coupled to a heat-dissipating part according to an exemplary embodiment.

FIG. 5 is an enlarged schematic view of a thermally conductive member directly attached to a heat generating portion of a vibrating core assembly, 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 machine shell 10; a heat dissipation portion 11; a plastic part 12; a heat conductive member 20; a vibrating core assembly 30; a metal bracket 31; a vibrating body 32; a heat transfer medium 40; a mobile terminal 50; a processing component 51; a memory 52; a power supply component 53; a multimedia component 54; an audio component 55; an input/output (I/O) interface 56; a sensor assembly 57; a communication component 58; a processor 59.

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.

As shown in fig. 1 and 2, the multimedia device includes a casing 10 and a vibration core assembly 30 installed in the casing 10, and the casing 10 includes a heat sink 11 on a surface. The multimedia device further includes a heat conductive member 20, wherein the heat conductive member 20 thermally connects the vibration core assembly 30 and the heat dissipating part 11 to guide heat generated from the heat generating portion of the vibration core assembly 30 to the heat dissipating part 11.

As shown in fig. 3 and 4, the heat dissipating part 11 is located on a surface of the chassis 10, and in an alternative embodiment, the heat dissipating part 11 is provided as a part of the chassis 10. For example, the heat dissipation portion 11 is a metal housing portion of the casing 10, and has high heat dissipation efficiency and a wide heat dissipation range. In another alternative embodiment, the heat dissipation part 11 is provided as a heat dissipation member mounted to the case 10. For example, the heat sink is made of a metal material, has high heat dissipation efficiency, and is located on the surface of the case 10. Alternatively, the heat dissipation portion 11 is provided with a heat dissipation rib structure to enlarge a heat dissipation area.

The heat conductive member 20 is used to thermally connect the vibration core assembly 30 and the heat sink 11, and accordingly, the heat conductive member 20 may be made of a material having high thermal conductivity, such as a metal material for the heat conductive member 20. The vibrating core assembly 30 generates a corresponding amount of heat during operating conditions, and as the amplitude of vibration of the vibrating core assembly 30 increases, the amount of heat generated increases accordingly. The heat conducting member 20 is connected to the vibration core assembly 30 in a heat conducting manner, so that heat generated by the vibration core assembly 30 is transferred to the heat dissipation portion 11 through the heat conducting member 20, and the heat dissipation is rapidly performed by utilizing the characteristic of high heat dissipation efficiency of the heat dissipation portion 11, so that the temperature stability of the vibration core assembly 30 is maintained. That is, when the amplitude of the vibration core assembly 30 is increased, the temperature rise of the vibration core assembly 30 is small, the sound effect with high quality can be maintained, and the user experience is good. The heat conducting member 20 is connected to the inner space and the outer surface of the casing 10, so that heat in the casing 10 can be guided to the outside of the casing 10 to be discharged, thereby preventing the temperature of the whole inside of the casing 10 from rising, reducing the temperature rise of the vibrating core assembly 30, and achieving a good sound effect of the multimedia device.

In one embodiment, the heat-conducting member 20 is fixedly connected to the heat-dissipating member 11. The heat conducting member 20 is fixed to the heat dissipating portion 11, so that the relative position between the heat conducting member 20 and the heat dissipating portion 11 is fixed, the surface of the heat conducting member 20 and the surface of the heat dissipating portion 11 are at least partially attached to each other, the heat conducting member and the heat dissipating portion are tightly combined, and the heat conducting stability is good.

In an alternative embodiment, as shown in fig. 3, the heat-conducting member 20 is integrally formed with the heat-dissipating member 11. The heat dissipating portion 11 is a metal casing portion of the casing 10, and the heat conductive member 20 is a protrusion or a bent portion of the heat dissipating portion 11 so that the two are integrally configured. For example, the heat dissipation portion 11 is a sheet metal member, and constitutes a metal housing portion of the casing 10. The heat conducting member 20 is a bent structure formed by stamping the heat dissipating part 11, and the end of the heat conducting part is opposite to the heating part of the vibration core assembly 30, so that the heat conducting part and the vibration core assembly can conduct heat smoothly. Alternatively, the heat conductive member 20 is welded to the heat sink 11 through a welding process so that they are integrated.

In another alternative embodiment, as shown in fig. 4, the heat-conducting member 20 is detachably attached to the heat-dissipating member 11. The heat conductor 20 is a separate component and detachably connected to the heat radiating portion 11 of the casing 10, and both of them are thermally transferred through a joint surface. For example, the end of the heat conductive member 20 is bent and attached to the surface of the heat sink 11, and the fastener is passed through the heat conductive member 20 and locked to the heat sink 11 to fasten the two. Alternatively, the heat dissipation part 11 is provided with a connection structure, and the heat conductive member 20 may be directly connected to the heat dissipation part 11 by a snap connection, or a plug connection, and other connection structures, which is convenient for connection.

In an embodiment, the housing 10 further includes a plastic portion 12 fixed to the heat dissipating portion 11, and the heat conducting member 20 is assembled to the plastic portion 12. The heat dissipating part 11 may be made of a material having high heat conduction efficiency, such as a metal material, and the casing 10 may further include a plastic part 12, and the plastic part 12 may be formed by a molding process. The vibration core assembly 30 is installed in the installation space of the plastic part 12; alternatively, the vibration core assembly 30 is mounted in a mounting space formed by the plastic part 12 and the heat dissipation part 11.

The heat dissipation part 11 and the plastic part 12 are fixedly connected, and optionally, they can be integrally formed by a molding process. Specifically, the plastic part 12 is formed on the heat dissipating part 11, so that the heat dissipating part 11 and the plastic part 12 are integrally formed, and the bonding tightness is high. Optionally, the heat sink 11 and the plastic part 12 are detachably connected by a fastener, so that the two parts can be detachably assembled and connected. Optionally. The heat dissipation part 11 is fixed on the plastic part 12 through plug connection, buckle connection, interference fit connection and other modes, so that the two parts are tightly matched and connected, and the assembly efficiency is high.

As shown in fig. 3 and 4, the heat conducting member 20 is assembled to the plastic part 12 and is connected to the vibration core assembly 30 and the heat dissipating part 11 in a heat conducting manner. In an alternative embodiment, the plastic part 12 is molded to the heat conducting member 20, so that the heat conducting member 20 is tightly connected with the plastic part 12. In the present embodiment, the heat conductive member 20 may be integrally formed with the heat sink 11, or the heat conductive member 20 may be detachably connected to the heat sink 11. The plastic part 12 wraps the heat conducting member 20, so that the size and the position of the heat conducting member 20 can be controlled, and the position of the heat conducting member 20 relative to the vibration core assembly 30 is stable, and the matching effect is good.

In another alternative embodiment, the heat conducting member 20 is detachably connected to the plastic part 12, so that the heat conducting member 20 is detachably connected to the plastic part 12, and the heat conducting member 20 is convenient to replace and adjust the heat conducting position, and has good flexibility. In the present embodiment, the heat conductive member 20 may be integrally formed with the heat sink 11, or the heat conductive member 20 may be detachably connected to the heat sink 11. For example, the heat conducting member 20 may be connected to the plastic part 12 by plugging, and one end of the heat conducting member 20 is integrally formed with or attached to the heat dissipating member for conducting heat. The other end of the heat conducting member 20 corresponds to the position of the heat generating part of the vibration core assembly 30, and the adjusting effect is good. When the heat is generated, the heat conducting piece 20 and the plastic part 12 can be connected in an interference fit manner; the plastic part 12 is provided with an avoiding groove to be assembled in a matching way of avoiding the heat conducting piece 20 and the like, and the heat conducting position of the heat conducting piece 20, the heat radiating part 11 and the vibration core assembly 30 is convenient to adjust.

The heat-conducting member 20 is used for connecting the heat-dissipating part 11 and the vibration core assembly 30 in a heat-conducting manner, wherein the heat-conducting member 20 and the vibration core assembly 30 are connected in a heat-conducting manner in two manners, namely, a direct contact connection manner and an indirect contact connection manner.

In one embodiment, as shown in fig. 4, the heat conducting member 20 is connected to the heat generating portion of the vibration core assembly 30 via a heat conducting medium 40. The heat-conducting member 20 is connected in indirect contact with the vibration core assembly 30, and both of them are heat-transferred through the heat-conducting medium 40. There is a fitting gap between the heat-conducting member 20 and the vibration core assembly 30, and the heat-conducting medium 40 may fill the fitting gap and establish a heat transfer path between the heat-conducting member 20 and the vibration core assembly 30. In an alternative embodiment, the heat conducting medium 40 may be a heat conducting glue or a heat conducting pad. For example, the plane of one end of the heat-conducting member 20 is disposed opposite to the heat generating portion of the vibration core assembly 30 with a predetermined assembly gap therebetween. The heat conducting glue is filled in the assembly gap so as to improve the heat conducting efficiency of the assembly gap and the heat conducting glue.

In another embodiment, as shown in fig. 5, the heat conducting member 20 is directly attached to the heat generating portion of the vibration core assembly 30. That is, one end of the heat conducting member 20 is directly contacted and connected with the heat generating portion of the vibration core assembly 30, and the two are attached to each other, so that the heat conducting effect is good. For example, one end of the heat conducting member 20 is partially bent and elastically abutted against the heat generating portion of the vibration core assembly 30, and the two are tightly combined.

The vibration core assembly 30 is installed in the cabinet 10 and can vibrate under the control of a corresponding electrical signal to output an audio signal. In one embodiment, the vibrating core assembly 30 includes a metal bracket 31 and a vibrating body 32 mounted on the metal bracket 31, and the heat conducting member 20 is thermally connected to the metal bracket 31. The metal bracket 31 is detachably coupled to the casing 10 so that the vibration core assembly 30 is fixed to a predetermined position of the casing 10. The vibration body 32 is located inside the metal bracket 31 and is tightly coupled to the metal bracket 31. The vibration body 32 vibrates under the control of an electric signal and generates a corresponding audio signal, and at the same time, the vibration body 32 generates heat, which is dissipated through the metal bracket 31. The heat-conducting member 20 is attached to the metal bracket 31 to guide heat on the metal bracket 31 to flow out of the vibration core assembly 30, thereby maintaining the temperature of the vibration core assembly 30 stable. In an alternative embodiment, the vibration body 32 includes a vibration element and a voice coil element connected to the metal support 31, and the vibration element and the voice coil element output corresponding audio signals under the control of electrical signals, so that the audio transmission effect is good.

The multimedia device is applied to the mobile terminal so as to keep the stability and reliability of the audio signal output by the mobile terminal and have good sound effect. In one embodiment, a mobile terminal includes: a processor; a memory for storing processor-executable instructions; wherein the mobile terminal further comprises at least one multimedia device as disclosed in the above embodiments.

As shown in FIG. 6, in an alternative embodiment, the mobile terminal 50 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 50 may include one or more of the following components: processing component 51, memory 52, power component 53, multimedia component 54, audio component 55, input/output (I/O) interface 56, sensor component 57, and communication component 58.

The processing component 51 generally controls overall operations of the mobile terminal 50, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 51 may include one or more processors 59 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 51 may include one or more modules that facilitate interaction between the processing component 51 and other components. In an alternative embodiment, the processing component 51 may include a multimedia module to facilitate interaction between the multimedia component 54 and the processing component 51.

The memory 52 is configured to store various types of data to support operation at the mobile terminal 50. Examples of such data include instructions for any application or method operating on mobile terminal 50, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 52 may be implemented by any type or combination of volatile or non-volatile memory devices, such as static random access memory 52(SRAM), electrically erasable programmable read-only memory 52(EEPROM), erasable programmable read-only memory 52(EPROM), programmable read-only memory 52(PROM), read-only memory 52(ROM), magnetic memory 52, flash memory 52, a magnetic or optical disk.

The power supply component 53 provides power to the various components of the mobile terminal 50. The power components 53 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 50.

The multimedia component 54 includes a screen that provides an output interface between the mobile terminal 50 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 54 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 50 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.

The audio component 55 is configured to output and/or input audio signals. In an alternative embodiment, the audio component 55 includes a Microphone (MIC) configured to receive external audio signals when the mobile terminal 50 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 52 or transmitted via the communication component 58. In some embodiments, audio assembly 55 also includes a speaker for outputting audio signals.

An input/output (I/O) interface 56 provides an interface between the processing component 51 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 57 includes one or more sensors for providing various aspects of status assessment for the mobile terminal 50. In an alternative embodiment, the sensor assembly 57 may detect the open/closed 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 50, the sensor assembly 57 may also detect a change in the position of the mobile terminal 50 or a component of the mobile terminal 50, the presence or absence of user contact with the mobile terminal 50, the orientation or acceleration/deceleration of the mobile terminal 50, and a change in the temperature of the mobile terminal 50. The sensor assembly 57 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 57 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 57 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 58 is configured to facilitate wired or wireless communication between the mobile terminal 50 and other devices. The mobile terminal 50 may access a wireless network based on a communication standard, such as WiFi, 2G, 3G, 4G, 5G, or a combination thereof. In an exemplary embodiment, the communication component 58 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 58 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 50 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs) 59, Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors 59, 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 (10)

1. A multimedia device comprises a shell and a vibration kernel component arranged in the shell, and is characterized in that the shell comprises a heat dissipation part positioned on the surface, and the multimedia device also comprises a heat conduction member which is in heat conduction connection with the vibration kernel component and the heat dissipation part so as to guide heat generated by a heating part of the vibration kernel component to the heat dissipation part.

2. The multimedia device of claim 1, wherein the thermal conductor is fixedly coupled to the heat sink portion.

3. The multimedia device of claim 2, wherein the thermal conductor is integrally formed with the heat sink portion; or, the heat conducting piece is detachably connected to the heat radiating part.

4. The multimedia device of claim 1, wherein the housing further comprises a plastic portion fixed to the heat dissipating portion, and the heat conductive member is mounted to the plastic portion.

5. The multimedia device of claim 4, wherein the plastic portion is molded to the thermally conductive member; or the heat conducting piece is detachably connected with the plastic part.

6. The multimedia device of claim 1, wherein the thermal conductor member is in direct contact with the heat generating portion of the vibration kernel assembly.

7. The multimedia device of claim 1, wherein the heat conducting member is in heat conducting connection with the heat generating portion of the vibration core assembly via a heat conducting medium.

8. The multimedia device as claimed in claim 7, wherein the heat conducting medium is a heat conducting paste or a heat conducting pad.

9. The multimedia device of claim 1, wherein the vibrating core assembly comprises a metal bracket and a vibrating body mounted to the metal bracket, and the thermal conductor is thermally coupled to the metal bracket.

10. A mobile terminal, characterized in that said mobile terminal comprises:

a processor;

a memory for storing processor-executable instructions;

wherein the mobile terminal further comprises at least one multimedia device according to any of claims 1-9.

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