CN114710921A - Heat conduction device, mobile terminal and heat dissipation method - Google Patents

Abstract

The application discloses a heat conduction device, which is applied to a mobile terminal and comprises an air duct structure and an airflow driving device, wherein the air duct structure comprises at least one air inlet and one air outlet, and the airflow driving device is arranged between the air inlet and the air outlet; when the mobile terminal is in a first state, the airflow driving device conducts heat generated by a heat source component of the mobile terminal to a preheating element of the mobile terminal through the air duct structure; when the mobile terminal is in the second state, the air flow driving device conducts heat generated by a heat source component and a preheating element of the mobile terminal to the air outlet or conducts air at the air inlet to the air channel structure through the air channel structure, and heat dissipation and preheating of electronic elements of the mobile terminal can be achieved through the heat conduction device, the mobile terminal and the heat dissipation method, so that heat dissipation and preheating effects of the electronic elements of the mobile terminal are improved, and use experience of users is improved.

Description

Heat conduction device, mobile terminal and heat dissipation method

Technical Field

The present application relates to the field of mobile communications technologies, and in particular, to a heat conduction device, a mobile terminal, and a heat dissipation method.

Background

The mobile terminal comprises various electronic elements, different electronic elements have different requirements on temperature, for example, the temperature has important influence on the lithium ion battery, lithium dendrites are easily separated out from the surface of a graphite cathode when the lithium ion battery is charged in a low-temperature state, a diaphragm is punctured to cause short circuit in the battery, so that the service life of the battery is shortened, the conductivity of electrolyte with lower temperature is reduced, the impedance of an electrode film in the battery is increased, the available power is reduced, therefore, the battery needs to be preheated at the low temperature, and the heat generated by the battery and other heat source components in the high-temperature state can influence the working efficiency of the mobile terminal and the user experience of a terminal consumer.

The existing mobile terminal mainly adopts a natural heat dissipation system, so that the mobile terminal cannot effectively operate at a lower temperature or a higher temperature, and the requirements of heat dissipation and preheating of the mobile terminal cannot be met at the same time.

Disclosure of Invention

The invention mainly aims to provide a heat conduction device, a mobile terminal and a heat dissipation method, and aims to solve the problem that the heat dissipation and the preheating of the mobile terminal cannot be simultaneously met in the prior art.

In order to achieve the above object, the present application provides a heat conduction device applied to a mobile terminal, the heat conduction device including: the air duct structure comprises at least one air inlet and at least one air outlet, and the air flow driving device is arranged between the air inlet and the air outlet;

when the mobile terminal is in a first state, the airflow driving device conducts heat generated by a heat source component of the mobile terminal to a preheating element of the mobile terminal through the air duct structure;

when the mobile terminal is in the second state, the airflow driving device conducts heat generated by the heat source assembly and the preheating element of the mobile terminal to the air outlet or conducts air at the air inlet to the air channel structure through the air channel structure.

Optionally, the heat conduction structure is further included, the air duct structure includes a first channel and a second channel, the air inlet is disposed in the first channel, the air outlet is disposed at one end of the second channel, the other end of the second channel is communicated with the first channel, and the second channel is partially attached to the heat conduction structure;

when the mobile terminal is in the second state, the heat generated by the heat source component and the preheating element of the mobile terminal is conducted to the air outlet through the heat conduction structure, and the air at the air inlet is conducted to the air channel structure.

Optionally, the first channel includes a first air inlet and a second air inlet, and the airflow driving device is disposed between the first air inlet and the second air inlet.

Optionally, the heat conducting structure includes a heat conducting groove, the second channel includes a heat conducting wall, the heat conducting wall is attached to the heat conducting groove, and the heat conducting wall is disposed between the airflow driving device and the air outlet.

Optionally, the heat conducting structure further includes a first heat conducting surface and a second heat conducting surface, the first heat conducting surface and the second heat conducting surface are respectively connected to two sides of the heat conducting groove, and the first heat conducting surface, the second heat conducting surface and the heat conducting groove are attached to the preheating element of the mobile terminal.

Optionally, the heat exchanger further comprises a first shell and a second shell, the first shell comprises a first window, the second shell comprises a second window, the second shell and the first channel form a first cavity, the second window is communicated with the first cavity, the second shell, the second channel and the heat conduction groove form a second cavity, the first window is communicated with the air outlet, and the second window is communicated with the air inlet.

Optionally, the first casing includes a first limiting member, the air duct structure includes a second limiting member, and the air duct structure and the heat conducting structure are clamped on the first casing through the first limiting member and the second limiting member.

Optionally, the airflow driving device is an electric fan, the electric fan starts, stops or changes working power according to state parameters of the mobile terminal, the preheating element is a battery, and the heat source assembly includes the battery and a motherboard chip.

In order to achieve the above object, the present application also provides a mobile terminal, including: the mobile terminal comprises a heat source component, a preheating element and any one of the heat conduction devices, wherein the heat generated by the heat source component is conducted to the preheating element by the mobile terminal through the heat conduction device, or the heat generated by the heat source component and the preheating element is conducted to the outside of the mobile terminal.

In order to achieve the above object, the present application further provides a heat dissipation method, where the heat dissipation method is applied to the mobile terminal, and the heat dissipation method includes:

acquiring state parameters of the mobile terminal;

when the mobile terminal is in the first state, controlling the airflow driving device to be started so as to conduct heat generated by the heat source assembly to the preheating element;

when the mobile terminal is in the second state, controlling the airflow driving device to change working power so as to conduct heat generated by the heat source assembly and the preheating assembly to the outside of the mobile terminal body;

and when the third state of the mobile terminal is acquired, controlling the airflow driving device to stop.

The application provides a heat conduction device, mobile terminal and heat dissipation method, set up heat conduction device in mobile terminal, set up wind channel structure and air current drive arrangement in mobile terminal, be provided with air intake and air outlet on mobile terminal's the casing, air current drive arrangement conducts the preheating component of mobile terminal's heat source subassembly production to mobile terminal through the wind channel structure, or conduct the heat that mobile terminal's heat source subassembly and preheating component produced to the air outlet through the wind channel structure, discharge outside the mobile terminal, in order to realize preheating of mobile terminal preheating component and the radiating purpose to mobile terminal simultaneously, thereby mobile terminal's work efficiency and terminal consumer's user experience.

The above description is only an overview of the technical solutions of the present invention, and the present invention can be implemented in accordance with the content of the description so as to make the technical means of the present invention more clearly understood, and the above and other objects, features, and advantages of the present invention will be more clearly understood.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic hardware structure diagram of an embodiment of a mobile terminal according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a heat conduction device and an airflow driving device according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a heat conducting structure according to an embodiment of the present application

FIG. 4 is an exploded view of a heat conduction device according to an embodiment of the present application;

fig. 5 is a schematic flowchart of a heat dissipation method according to an embodiment of the application.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

The mobile terminal provided by the embodiment of the invention comprises a smart bracelet, a smart watch, a smart phone and other mobile terminals. With the continuous development of screen technologies, flexible screens, folding screens and other screen forms, mobile terminals such as smart phones and the like can also be used as mobile terminals. The mobile terminal provided in the embodiment of the present invention may include: an RF (radio frequency) unit, a WiFi module, an audio output unit, an a/V (audio/video) input unit, a sensor, a display unit, a user input unit, an interface unit, a memory, a processor, and a power supply.

In the following description, taking a mobile terminal as an example, please refer to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, where the mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an a/V (audio/video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile terminal in detail with reference to fig. 1:

the rf unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, the rf unit 101 may transmit uplink information to a base station, in addition, the downlink information sent by the base station may be received and then sent to the processor 110 of the mobile terminal for processing, the downlink information sent by the base station to the radio frequency unit 101 may be generated according to the uplink information sent by the radio frequency unit 101, or may be actively pushed to the radio frequency unit 101 after detecting that the information of the mobile terminal is updated, for example, after detecting that the geographical location of the mobile terminal is changed, the base station may send a message notification of the geographical location change to the radio unit 101 of the mobile terminal, and after receiving the message notification, the message notification may be sent to the processor 110 of the mobile terminal for processing, and the processor 110 of the mobile terminal may control the message notification to be displayed on the display panel 1061 of the mobile terminal; typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 may also communicate with a network and other devices through wireless communication, which may specifically include: the server may push a message notification of resource update to the mobile terminal through wireless communication to remind a user of updating the application program if the file resource corresponding to the application program in the server is updated after the mobile terminal finishes downloading the application program. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex Long Term Evolution), and TDD-LTE (Time Division duplex Long Term Evolution).

In one embodiment, the mobile terminal 100 may access an existing communication network by inserting a SIM card.

In another embodiment, the mobile terminal 100 may implement access to an existing communication network by setting an esim card (Embedded-SIM), and the adoption of the esim card may save an internal space of the mobile terminal and reduce the thickness.

It is to be understood that although fig. 1 shows the radio unit 101, it is to be understood that the radio unit 101 does not belong to the essential constitution of the mobile terminal, and may be omitted as needed within the scope not changing the essence of the invention.

The mobile terminal 100 may implement a communication connection with other devices or a communication network through the wifi module 102 alone, which is not limited in the embodiments of the present invention.

WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.

In one embodiment, the mobile terminal 100 includes one or more cameras, and by turning on the cameras, capturing images, taking pictures, recording videos, and the like can be realized, and the positions of the cameras can be set as required.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or the backlight when the mobile terminal 100 moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), and the like.

In one embodiment, the mobile terminal 100 further includes a proximity sensor, and the mobile terminal can implement non-contact operation and provide more operation modes by using the proximity sensor.

In one embodiment, the mobile terminal 100 further comprises a heart rate sensor, which is configured to sense a heart rate by being in close proximity to a user when worn.

In one embodiment, the mobile terminal 100 may further include a fingerprint sensor, and by reading a fingerprint, functions such as security authentication can be implemented.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

In one embodiment, the display panel 1061 is a flexible display screen, and when the mobile terminal using the flexible display screen is worn, the screen can be bent, so that the mobile terminal is more conformable. Optionally, the flexible display screen may adopt an OLED screen body and a graphene screen body, in other embodiments, the flexible display screen may also be made of other display materials, and this embodiment is not limited thereto.

In one embodiment, the display panel 1061 of the mobile terminal may have a rectangular shape so as to surround the display when worn. In other embodiments, other approaches may be taken.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 107 may include other input devices 1072 in addition to the touch panel 1071. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.

In one embodiment, the side of the mobile terminal 100 may be provided with one or more buttons. The button can realize various modes such as short-time pressing, long-time pressing, rotation and the like, thereby realizing various operation effects. The number of the buttons can be multiple, and different buttons can be combined for use to realize multiple operation functions.

Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein. For example, when receiving a message notification of an application through the rf unit 101, the processor 110 may control the message notification to be displayed in a predetermined area of the display panel 1061, where the predetermined area corresponds to a certain area of the touch panel 1071, and may control the message notification displayed in the corresponding area of the display panel 1061 by performing a touch operation on the certain area of the touch panel 1071.

The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.

In one embodiment, the interface unit 108 of the mobile terminal 100 is configured as a contact, and is connected to another corresponding device through the contact to implement functions such as charging and connection. The contact can also be waterproof.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.

Based on the above mobile terminal hardware structure and communication network system, various embodiments of the present application are provided.

As shown in fig. 2, the present application provides a heat conduction device applied to a mobile terminal 100, and in this embodiment, the heat conduction device is combined with other components as a component of the mobile terminal to form the mobile terminal 100.

In this embodiment, the heat conduction device includes an air duct structure 200 and an airflow driving device 300, where the air duct structure 200 includes 2 air inlets 2011 and 2 air outlets 2022, and the airflow driving device 300 is disposed between the air inlets 2011 and the air outlets 2022.

When the mobile terminal is in the first state, the airflow driving device 300 conducts heat generated by the heat source component of the mobile terminal to the preheating element 500 of the mobile terminal through the air duct structure 200.

When the mobile terminal is in the second state, the airflow driving device 300 conducts heat generated by the heat source assembly and the preheating element 500 of the mobile terminal to the air outlet 2022 through the air duct structure 200, or conducts air at the air inlet 2011 to the air duct structure 200.

In this embodiment, the air duct structure 200 includes a first channel 201 and a second channel 202, the first channel 201 is provided with at least one air inlet 2011, one end of the second channel 202 is provided with at least one air outlet 2022, meanwhile, the second channel 202 is provided with a heat conducting wall 2023, the heat conducting wall 2023 is disposed between the airflow driving device 300 and the air outlet 2022, the other end of the second channel 202 is mutually communicated with the first channel 201, and air enters from the first channel 201 and flows out from the second channel 202.

The airflow driving device 300 is detachably disposed between the air inlet 2011 and the air outlet 2022. In this embodiment, the airflow driving device 300 is at least one electric fan, and the size of the fan can be determined according to specific needs.

The airflow driving device 300 starts, stops or changes the working power according to the parameters acquired by the state of the mobile terminal, and rotates in a certain direction, so that the air circulation speed inside the mobile terminal can be increased, and the heat dissipation or preheating effect of the mobile terminal can be controlled by controlling the air flow speed according to the difference of the temperature. When the mobile terminal is in the first state, that is, when the mobile terminal determines that the parameter obtained by the temperature sensor is in the low temperature state, the airflow driving device 300 transfers the heat generated by the heat source component of the mobile terminal to the second channel 202 through the first channel 201, and the second channel 202 transfers the heat to the preheating element 500 of the mobile terminal through the heat conducting structure 400, so as to raise the temperature of the mobile terminal, and when the mobile terminal is in the second state, that is, when the mobile terminal determines that the parameter obtained by the temperature sensor is in the high temperature state, the heat generated by the heat source component and the preheating element 500 is transferred to the air outlet 2022 through the second channel 202 and the heat conducting structure 400, and meanwhile, the air outside the mobile terminal enters the air duct structure 200 through the air inlet 2011 and is dispersedly transferred to the heat source component and the preheating element 500 through the heat conducting structure 400, so as to lower the temperature of the mobile terminal.

As shown in fig. 3, in the present embodiment, the heat conducting structure 400 is provided with a heat conducting groove 403, the second channel 202 is provided with a heat conducting wall 2023, the heat conducting groove 403 is assembled with the heat conducting wall 2023 in a fitting manner, the heat conducting wall 2023 is disposed between the airflow driving device 300 and the air outlet 2022, the preheating element 500 is disposed at two sides of the heat conducting groove 403, the heat conducting structure 400 is further provided with a first heat conducting surface 401 and a second heat conducting surface 402, the heat conducting surfaces are respectively connected to two sides of the heat conducting groove 403, and the heat conducting surface and the heat conducting groove 403 are attached to the preheating element 500 of the mobile terminal. When the airflow driving device 300 of the mobile terminal rotates, the air of the air duct structure 200 flows in the direction of the air inlet 2011 and the air outlet 2022, heat generated by each heat source assembly is convectively conducted along with the flowing direction of the air, the heat conducting structure 400 attached to the surface of the preheating element 500 increases the heat conducting area, so that the heat conducting effect of the preheating element 500 is more remarkable, and when the hot air passes through the heat conducting structure 400, the heat is conducted more efficiently.

As shown in fig. 4, in the present embodiment, the housing includes a first housing 601 and a second housing 602, the first housing 601 is a front shell of the heat conduction device, the second housing 602 is a rear shell of the heat conduction device, a first window 6011 is disposed on the first housing 601, a second window 6021 is disposed on the second housing 602, the second window 6021 is assembled to the air inlet 2011, and the first window 6011 is assembled to the air outlet 2022. In this embodiment, the number of the first windows 6011 corresponds to the number of the air inlets 2011, and is at least one. The air duct structure 200 is provided with a first limiting member 203, the first housing 601 is provided with a second limiting member 603, and the first limiting member 203 and the second limiting member 603 fasten the heat conduction device to the first housing 601. In this embodiment, the heat source assembly includes various chips 701 on a motherboard, a battery protection board 702, and a battery cell 703, and the preheating element 500 is a battery.

Through the heat conduction device that above-mentioned embodiment provided, can provide the initiative and carry out the initiative drive circulation to the inside hot-air of mobile terminal who uses this heat conduction device to improve faster circulation of air speed, reduce the temperature fast or raise the temperature, satisfy simultaneously and dispel the heat or preheat mobile terminal.

The application also provides a mobile terminal, which comprises a display screen, a middle frame, components and the heat conduction device. The middle frame is used for assembling the display screen and the rear shell in the heat conduction device. The display screen, the middle frame and the rear shell are assembled together to form an accommodating space for accommodating various components, and when the airflow driving device 300 works, the airflow driving device can cooperate with the air duct structure 200 to drive heat of the components in the accommodating space to be discharged from the through holes, or drive heat of the components in the accommodating space to be conducted from the air duct structure 200 to the preheating element 500.

In this embodiment, the components are provided with receiving positions corresponding to the positions of the air duct structure 200 and the airflow driving device 300, and when the components are assembled on the inner surface of the housing opposite to the display screen, the airflow driving device 300 is at least partially received in the receiving positions, so that the stacking height of the components inside the mobile terminal can be effectively reduced, and the thickness of the mobile terminal is reduced. In this embodiment, the component includes a circuit board, and the circuit board is provided with a receiving location, for example, the circuit board is L-shaped. In other embodiments, the component includes a battery, and the battery is provided with a receiving position, for example, the battery may be L-shaped. In other embodiments, the receiving position of the component is composed of a circuit board receiving position and a battery receiving position.

In this embodiment, when the middle frame and the heat conduction device are assembled together, when the airflow driving device 300 of the mobile terminal rotates, the air in the air duct structure 200 flows in the direction of the air inlet 2011 and the air outlet 2022, the heat generated by each heat source component is convectively conducted along with the flowing direction of the air, the heat conduction area of the heat conduction structure 400 attached to the surface of the preheating element 500 is increased, the heat conduction effect of the preheating element 500 is more remarkable, and when the hot air passes through the heat conduction structure 400, the heat is conducted more efficiently.

In other embodiments, the surface of the middle frame may also be provided with a temperature equalization plate, and other periods of high-power heat dissipation may also be provided, which is not limited specifically.

During assembly, the air duct structure 200 and the airflow driving device 300 are correspondingly mounted on the first housing 601 as required, and correspond to the air inlet 2011 on the first housing 601. A circuit board is mounted on the inner surface of the first housing 601 at a position near the upper end, wherein a CPU is mounted on the circuit board for controlling the operation of the mobile terminal. The heat conduction device is provided with a heat conduction structure 400, the heat conduction structure 400 is provided with a heat conduction groove 403, the second channel 202 of the air duct structure 200 is provided with a heat conduction wall 2023, the heat conduction groove 403 is assembled with the heat conduction wall 2023 in a fitting manner, the heat conduction wall 2023 is arranged between the air flow driving device 300 and the air outlet 2022, the battery is arranged on two sides of the heat conduction groove 403, the heat conduction structure 400 is further provided with a first heat conduction surface 401 and a second heat conduction surface 402, the heat conduction surfaces are respectively connected to two sides of the heat conduction groove 403, the heat conduction surfaces and the heat conduction groove 403 are attached to the preheating element 500 of the mobile terminal, the heat conduction device and the first shell 601 form an accommodating space, and the second shell 602 is assembled on the first shell 601 to form the mobile terminal.

As shown in fig. 5, the present application further provides a heat dissipation method, which is applied to the foregoing mobile terminal, and once the method of this embodiment is triggered by a user, the process in this embodiment automatically runs through the terminal, where each step may be performed sequentially according to the sequence in the flowchart, or may be performed simultaneously according to a plurality of steps according to an actual situation, which is not limited herein. The heat dissipation method comprises the following steps:

s501: acquiring state parameters of the mobile terminal;

s502: when the mobile terminal is in the first state, controlling the airflow driving device 300 to start to transfer heat generated by the heat source component to the preheating element 500;

s503: when the mobile terminal is in the second state, controlling the airflow driving device 300 to change working power so as to conduct heat generated by the heat source component and the preheating component to the outside of the mobile terminal body;

s504: and when the third state of the mobile terminal is acquired, controlling the airflow driving device 300 to stop.

Through the embodiment, the airflow driving device 300 is adaptively controlled to work by detecting the state parameters of the mobile terminal, so that the power consumption can be saved and the effect of effective cooling can be achieved.

Specifically, in this embodiment, the status parameter is information of an application currently running in the foreground of the mobile terminal. The application information may be a category of the application and/or a name of the application. In other embodiments, the state parameter is temperature information of the mobile terminal at a preset position. In step S501, information of an application currently running in the foreground of the mobile terminal may be acquired through a call function of the system. In other embodiments, a sensor is disposed in the mobile terminal, and the CPU determines the temperature information of the mobile terminal at the preset position by receiving the temperature detection value sent by the sensor.

In step S502, when the acquired state of the mobile terminal is a low temperature, the heat conduction device is controlled to be activated to conduct heat generated by the heat source component to the preheating element 500.

In step S503, when the obtained state of the mobile terminal is a high temperature, the heat conduction device is controlled to be activated to conduct the heat generated by the heat source assembly to the preheating element 500, and the airflow driving device 300 is controlled by the airflow driving device 300 according to the working parameters of the airflow driving device 300 to cooperate with the air inlet 2011 and the air outlet 2022 to discharge the hot air in the mobile terminal from the air outlet 2022.

S504, when the acquired state of the mobile terminal is a normal temperature, controlling the airflow driving device 300 to stop.

Through the heat conduction device, the mobile terminal and the heat dissipation method, the air duct structure 200 and the airflow driving device 300 are arranged in the mobile terminal, the air inlet 2011 is formed in the rear cover of the mobile terminal, the air duct structure 200 is arranged opposite to the air inlet 2011, when the mobile terminal works, heat of components of the mobile terminal is transmitted to the display screen and the rear shell through heat conduction, the display screen and the rear shell perform heat exchange with the environment through radiation and natural convection, external air of the mobile terminal enters the inner cavity of the mobile terminal through the air inlet 2011 of the rear shell, heat exchange is performed inside the mobile terminal, the CPU drives the airflow driving device 300 to work to actively promote the circulation of the hot air in the inner cavity and discharge the hot air from the air outlet 2022, or actively promote the circulation of the hot air in the inner cavity and conduct the hot air to the battery, and the purposes of active cooling and active heating are achieved.

The corresponding technical features in the above embodiments may be used with each other without causing contradiction in the schemes or without being implementable.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A heat conduction device applied to a mobile terminal, comprising: the air duct structure comprises at least one air inlet and at least one air outlet, and the air flow driving device is arranged between the air inlet and the air outlet;

when the mobile terminal is in a first state, the airflow driving device conducts heat generated by a heat source component of the mobile terminal to a preheating element of the mobile terminal through the air duct structure;

when the mobile terminal is in the second state, the airflow driving device conducts heat generated by the heat source assembly and the preheating element of the mobile terminal to the air outlet or conducts air at the air inlet to the air channel structure through the air channel structure.

2. The heat conduction device according to claim 1, further comprising a heat conduction structure, wherein the air duct structure comprises a first channel and a second channel, the air inlet is disposed in the first channel, the air outlet is disposed at one end of the second channel, the other end of the second channel is communicated with the first channel, and the second channel is partially attached to the heat conduction structure;

when the mobile terminal is in the second state, the heat generated by the heat source component and the preheating element of the mobile terminal is conducted to the air outlet through the heat conduction structure, and the air at the air inlet is conducted to the air channel structure.

3. The heat conducting device according to claim 2, wherein the first passage includes a first air inlet opening and a second air inlet opening, and the airflow actuator is disposed between the first air inlet opening and the second air inlet opening.

4. The heat transfer device of claim 3, wherein the heat conducting structure comprises a heat conducting channel, and the second channel comprises a heat conducting wall, the heat conducting wall is attached to the heat conducting channel, and the heat conducting wall is disposed between the airflow driving device and the air outlet.

5. The heat conduction device as claimed in claim 4, wherein the heat conduction structure further comprises a first heat conduction surface and a second heat conduction surface, the first heat conduction surface and the second heat conduction surface are respectively connected to two sides of the heat conduction groove, and the first heat conduction surface, the second heat conduction surface and the heat conduction groove are attached to a preheating element of the mobile terminal.

6. The heat transfer device of claim 1 or 5, further comprising a first housing and a second housing, wherein the first housing comprises a first window, the second housing comprises a second window, the second housing and the first channel form a first cavity, the second window is communicated with the first cavity, the second housing, the second channel and the heat conducting groove form a second cavity, the first window is communicated with the air outlet, and the second window is communicated with the air inlet.

7. The heat conduction device according to claim 6, wherein the first housing includes a first stopper, the air duct structure includes a second stopper, and the air duct structure and the heat conduction structure are engaged with the first housing through the first stopper and the second stopper.

8. The heat conduction device according to claim 7, wherein the airflow driving device is an electric fan that starts, stops, or changes operating power according to the state parameters of the mobile terminal, the preheating element is a battery, and the heat source assembly includes the battery and a motherboard chip.

9. A mobile terminal, comprising: the mobile terminal comprises a heat source component, a preheating element and any one of the heat conduction devices of claims 1-8, wherein the heat generated by the heat source component is conducted to the preheating element by the mobile terminal through the heat conduction device, or the heat generated by the heat source component and the preheating element is conducted to the outside of the mobile terminal.

10. A heat dissipation method applied to the mobile terminal of claim 9, the method comprising:

acquiring state parameters of the mobile terminal;

when the mobile terminal is in the first state, controlling the airflow driving device to be started so as to conduct heat generated by the heat source assembly to the preheating element;

when the mobile terminal is in the second state, controlling the airflow driving device to change working power so as to conduct heat generated by the heat source assembly and the preheating assembly to the outside of the mobile terminal body;

and when the third state of the mobile terminal is acquired, controlling the airflow driving device to stop.

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