Heat conduction device, mobile terminal and heat dissipation method

Abstract

The application discloses a heat conduction device applied to a mobile terminal, which comprises an air duct structure and an airflow driving device, the air duct structure comprises at least one air inlet and an 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 a second state, the airflow driving device conducts heat generated by the heat source component and the preheating element of the mobile terminal to the air outlet through the air duct structure, or conducts air at the air inlet to the air duct structure. The heat conduction device, the mobile terminal and the heat dissipation method provided by the application can conduct heat dissipation and preheating on electronic elements of the mobile terminal, improve the heat dissipation and preheating effect of the electronic elements of the mobile terminal, and improve the use experience of users.

Description

Technical Field

[0001] This application relates to the field of mobile communication technology, and in particular to a heat conduction device, a mobile terminal, and a heat dissipation method. Background Technology

[0002] Mobile terminals contain a variety of electronic components, each with different temperature requirements. For example, temperature has a significant impact on lithium-ion batteries. At low temperatures, lithium dendrites are easily deposited on the graphite anode surface during charging, which can puncture the separator and cause a short circuit inside the battery, thus reducing battery life. At the same time, the conductivity of the electrolyte decreases at lower temperatures, the impedance of the electrode film in the battery increases, and the available power decreases. Therefore, batteries need to be preheated at low temperatures. At high temperatures, the heat generated by the battery and other heat source components can affect the working efficiency of the mobile terminal and the user experience of end consumers.

[0003] Current mobile terminals mainly use natural heat dissipation systems, which means that mobile terminals cannot operate effectively at low or high temperatures, and cannot simultaneously meet the requirements of heat dissipation and preheating. Summary of the Invention

[0004] The main objective of this invention is to propose a heat conduction device, a mobile terminal, and a heat dissipation method, aiming to solve the problem that the existing technology cannot simultaneously meet the requirements of heat dissipation and preheating of mobile terminals.

[0005] To achieve the above objectives, this application provides a heat conduction device for use in a mobile terminal. The heat conduction device includes: an air duct structure and an airflow driving device. The air duct structure includes at least one air inlet and an air outlet, and the airflow driving device is disposed between the air inlet and the air outlet.

[0006] When the mobile terminal is in the first state, the airflow driving device conducts the heat generated by the heat source component of the mobile terminal to the preheating element of the mobile terminal through the air duct structure.

[0007] When the mobile terminal is in the second state, the airflow driving device conducts the heat generated by the heat source components and preheating elements of the mobile terminal to the air outlet through the air duct structure, or conducts the air at the air inlet to the air duct structure.

[0008] Optionally, it also includes a heat-conducting structure. 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 connected to the first channel, and the second channel is partially attached to the heat-conducting structure.

[0009] When the mobile terminal is in the first state, the airflow driving device conducts the heat generated by the heat source component of the mobile terminal to the second channel through the first channel. The second channel conducts the heat generated by the heat source component of the mobile terminal to the preheating element of the mobile terminal through the heat-conducting 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-conducting structure, and the air at the air inlet is conducted to the air duct structure.

[0010] 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.

[0011] 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.

[0012] 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 being connected to both sides of the heat-conducting groove, and the first heat-conducting surface, the second heat-conducting surface and the heat-conducting groove being attached to the preheating element of the mobile terminal.

[0013] Optionally, it also includes a first housing and a second housing. The first housing includes a first window, and the second housing includes a second window. The second housing and the first channel form a first cavity. The second window is connected to the first cavity. The second housing, the second channel, and the heat-conducting groove form a second cavity. The first window is connected to the air outlet, and the second window is connected to the air inlet.

[0014] Optionally, the first housing includes a first limiting member, and the air duct structure includes a second limiting member. The air duct structure and the heat conduction structure are engaged with the first housing through the first limiting member and the second limiting member.

[0015] Optionally, the airflow driving device is an electric fan, which starts, stops, or changes its operating power according to the status parameters of the mobile terminal. The preheating element is a battery, and the heat source assembly includes the battery and the motherboard chip.

[0016] To achieve the above objectives, this application also provides a mobile terminal, which includes: a heat source component, a preheating element, and any of the above-mentioned heat conduction devices. The mobile terminal conducts the heat generated by the heat source component to the preheating element through the heat conduction device, or conducts the heat generated by the heat source component and the preheating element to the outside of the mobile terminal.

[0017] Therefore, in order to achieve the above objectives, this application also provides a heat dissipation method, which is applied to the aforementioned mobile terminal, and the heat dissipation method includes:

[0018] Obtain the status parameters of the mobile terminal;

[0019] When the mobile terminal is in the first state, the airflow drive device is activated to conduct the heat generated by the heat source component to the preheating element.

[0020] When the mobile terminal is in the second state, the airflow drive device is controlled to change its operating power to conduct the heat generated by the heat source component and the preheating component to the outside of the mobile terminal.

[0021] When the mobile terminal is detected to be in the third state, the airflow driving device is controlled to stop.

[0022] The heat conduction device, mobile terminal, and heat dissipation method provided in this application include a heat conduction device, an air duct structure, and an airflow driving device installed inside the mobile terminal. The mobile terminal's casing has an air inlet and an air outlet. The airflow driving device conducts the heat generated by the heat source components of the mobile terminal to the preheating element of the mobile terminal through the air duct structure, or conducts the heat generated by the heat source components and the preheating element of the mobile terminal to the air outlet through the air duct structure, and exhausts it outside the mobile terminal. This achieves the purpose of preheating the preheating element of the mobile terminal and dissipating heat from the mobile terminal, thereby improving the working efficiency of the mobile terminal and the user experience of the end consumer.

[0023] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the hardware structure of a mobile terminal according to an embodiment of the present invention;

[0027] Figure 2 A schematic diagram of the structure of a heat conduction device and an airflow drive device provided in an embodiment of this application;

[0028] Figure 3 This is a schematic diagram of a heat-conducting structure provided in an embodiment of this application;

[0029] Figure 4 An exploded view of a heat conduction device provided in an embodiment of this application;

[0030] Figure 5 This is a schematic flowchart of a heat dissipation method provided in an embodiment of this application. Detailed Implementation

[0031] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0032] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0033] The mobile terminals provided in this embodiment of the invention include smart bracelets, smartwatches, and smartphones. With the continuous development of screen technology and the emergence of flexible screens, foldable screens, and other screen forms, smartphones and other mobile terminals can also serve as mobile terminals. The mobile terminals provided in this embodiment of the 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, among other components.

[0034] The following description will use a mobile terminal as an example; please refer to [link / reference]. Figure 1 This is a schematic diagram of the hardware structure of a mobile terminal implementing various embodiments of the present invention. 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, etc. Those skilled in the art will understand that... Figure 1 The mobile terminal structure shown does not constitute a limitation on the mobile terminal. The mobile terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0035] The following is combined with Figure 1 A detailed introduction to each component of the mobile terminal:

[0036] The radio frequency unit 101 can be used for receiving and transmitting signals during information transmission or calls. Specifically, the radio frequency unit 101 can send uplink information to the base station, and can also receive downlink information sent by the base station and send it to the processor 110 of the mobile terminal for processing. The downlink information sent by the base station to the radio frequency unit 101 can be generated based on the uplink information sent by the radio frequency unit 101, or it can be actively pushed to the radio frequency unit 101 after detecting an information update of the mobile terminal. For example, after detecting a change in the geographical location of the mobile terminal, the base station can send a geographical location change message notification to the radio frequency unit 101 of the mobile terminal. After receiving the message notification, the radio frequency unit 101 can send the message notification to the processor 110 of the mobile terminal for processing. The processor 110 of the mobile terminal can control the message notification to be displayed on the display panel 1061 of the mobile terminal. Typically, the 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, etc. In addition, the radio frequency unit 101 can also communicate with the network and other devices wirelessly. Specifically, it can communicate with a server in the network system wirelessly. For example, a mobile terminal can download file resources from the server wirelessly, such as an application. After the mobile terminal has finished downloading an application, if the file resources corresponding to the application on the server are updated, the server can push a resource update message notification to the mobile terminal wirelessly to remind the user to update the application. The aforementioned wireless communications may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), 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 Duplexing-Long Term Evolution), and TDD-LTE (Time Division Duplexing-Long Term Evolution).

[0037] In one implementation, the mobile terminal 100 can access an existing communication network by inserting a SIM card.

[0038] In another implementation, the mobile terminal 100 can access the existing communication network by setting an eSIM card (Embedded-SIM). Using an eSIM card can save internal space and reduce the thickness of the mobile terminal.

[0039] Understandably, although Figure 1 Radio frequency unit 101 is shown, but it is understood that radio frequency unit 101 is not a necessary component of a mobile terminal and can be omitted as needed without changing the nature of the invention.

[0040] The mobile terminal 100 can independently achieve communication connection with other devices or communication networks through the Wi-Fi module 102, but this embodiment of the invention is not limited thereto.

[0041] WiFi is a short-range wireless transmission technology. Mobile terminals, through the WiFi module 102, can help users send and receive emails, browse web pages, and access streaming media, providing users with wireless broadband internet access. Although Figure 1 WiFi module 102 is shown, but it is understood that it is not a necessary component of a mobile terminal and can be omitted as needed without changing the nature of the invention.

[0042] The audio output unit 103 can convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into audio signals and output them as sound when the mobile terminal 100 is in call signal receiving mode, call mode, recording mode, voice recognition mode, broadcast receiving mode, etc. Furthermore, the audio output unit 103 can also provide audio output related to specific functions performed by the mobile terminal 100 (e.g., call signal receiving sound, message receiving sound, etc.). The audio output unit 103 may include a speaker, a buzzer, etc.

[0043] 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 GPU 1041 processes image data of still images or videos acquired by an image capture device (such as a camera) in video capture mode or image capture mode. The processed image frames can be displayed on the display unit 106. The image frames processed by the GPU 1041 can be stored in the memory 109 (or other storage media) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) in operating modes such as telephone call mode, recording mode, and voice recognition mode, and can process such sound into audio data. The processed audio (voice) data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 101 in telephone call mode. The microphone 1042 can implement various types of noise cancellation (or suppression) algorithms to eliminate (or suppress) noise or interference generated during the reception and transmission of audio signals.

[0044] In one embodiment, the mobile terminal 100 includes one or more cameras. By turning on the cameras, images can be captured, enabling functions such as taking photos and recording videos. The position of the cameras can be set as needed.

[0045] 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 and a proximity sensor. The ambient light sensor can adjust the brightness of the display panel 1061 according to the ambient light level, and the proximity sensor can turn off the display panel 1061 and / or backlight when the mobile terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes). When stationary, it can detect the magnitude and direction of gravity, and can be used for applications that recognize the phone's posture (such as landscape / portrait switching, related games, magnetometer posture calibration), vibration recognition functions (such as pedometer, tapping), etc.

[0046] In one embodiment, the mobile terminal 100 also includes a proximity sensor, which enables contactless operation and provides more operating methods.

[0047] In one embodiment, the mobile terminal 100 also includes a heart rate sensor, which can detect heart rate when worn by being close to the user.

[0048] In one embodiment, the mobile terminal 100 may also include a fingerprint sensor, which can perform functions such as security verification by reading fingerprints.

[0049] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0050] In one embodiment, the display panel 1061 employs a flexible display screen. When a mobile terminal using a flexible display screen is worn, the screen can bend, thus providing a more comfortable fit. Optionally, the flexible display screen can be an OLED screen or a graphene screen. In other embodiments, the flexible display screen can also be other display materials, and this embodiment is not limited thereto.

[0051] In one embodiment, the display panel 1061 of the mobile terminal may be rectangular for easy wrapping around the user when worn. Other embodiments may also employ different methods.

[0052] User input unit 107 can be used to receive input numerical or character information, and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, user input unit 107 may include touch panel 1071 and other input devices 1072. Touch panel 1071, also known as touch screen, can collect touch operations on or near the user (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near touch panel 1071), and drive corresponding connection devices according to a pre-set program. Touch panel 1071 may include two parts: a touch detection device and a touch controller. The touch detection device detects the user's touch position and the signal generated by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, sends it to processor 110, and can receive and execute commands from processor 110. In addition, touch panel 1071 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may also include other input devices 1072. Specifically, other input devices 1072 may include, but are not limited to, one or more of the following: physical keyboard, function keys (such as volume control buttons, power buttons, etc.), trackball, mouse, joystick, etc., without being limited here.

[0053] In one embodiment, the mobile terminal 100 may have one or more buttons on its side. These buttons can be pressed briefly, pressed repeatedly, rotated, or otherwise manipulated to achieve various operational effects. Multiple buttons can be used in combination to implement various functions.

[0054] Furthermore, the touch panel 1071 may cover the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of touch event. Subsequently, the processor 110 provides corresponding visual output on the display panel 1061 based on the type of touch event. Although in Figure 1 In this embodiment, the touch panel 1071 and the display panel 1061 are two independent components for implementing the input and output functions of the mobile terminal. However, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to achieve the input and output functions of the mobile terminal. Specific implementation details are not limited here. For example, when a message notification from an application is received via the radio frequency unit 101, the processor 110 can control the display of the message notification within a preset area of ​​the display panel 1061. This preset area corresponds to a specific area of ​​the touch panel 1071. By performing a touch operation on a specific area of ​​the touch panel 1071, the message notification displayed in the corresponding area of ​​the display panel 1061 can be controlled.

[0055] Interface unit 108 serves as an interface through which at least one external device can connect to 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 with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, and so on. Interface unit 108 may be used to receive input (e.g., data, power, etc.) from the external device and transmit the received input to one or more elements within mobile terminal 100, or it may be used to transmit data between mobile terminal 100 and the external device.

[0056] In one embodiment, the interface unit 108 of the mobile terminal 100 adopts a contact structure, which connects to other corresponding devices to realize functions such as charging and connection. The use of contacts also provides waterproofing.

[0057] The memory 109 can be used to store software programs and various data. The memory 109 may primarily include a program storage area and a data storage area. The program storage area may store the operating system, applications required for at least one function (such as sound playback, image playback, etc.), etc.; the data storage area may store data created based on the use of the mobile phone (such as audio data, phonebook, etc.). Furthermore, the memory 109 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0058] The processor 110 is the control center of the mobile terminal. It connects various parts of the mobile terminal via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 109, and by calling data stored in the memory 109, it performs various functions and processes data of the mobile terminal, thereby providing overall monitoring of the mobile terminal. The processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor. The application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 110.

[0059] The mobile terminal 100 may also include a power supply 111 (such as a battery) that supplies power to various components. Preferably, the power supply 111 can be logically connected to the processor 110 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system.

[0060] although Figure 1 As not shown, the mobile terminal 100 may also include a Bluetooth module, etc., which will not be described in detail here.

[0061] Based on the above-described mobile terminal hardware structure and communication network system, various embodiments of this application are proposed.

[0062] As shown in Figure 2, this application proposes a heat conduction device applied to a mobile terminal 100. In this embodiment, the heat conduction device is a component of the mobile terminal and is combined with other components to form the mobile terminal 100.

[0063] In this embodiment, the heat conduction device includes a duct structure 200 and an airflow driving device 300, wherein the duct structure 200 includes two air inlets 2011 and an air outlet 2022, and the airflow driving device 300 is disposed between the air inlets 2011 and the air outlets 2022.

[0064] When the mobile terminal is in the first state, the airflow drive device 300 conducts the 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.

[0065] When the mobile terminal is in the second state, the airflow drive device 300 conducts the heat generated by the heat source components and preheating elements 500 of the mobile terminal to the air outlet 2022 through the air duct structure 200, or conducts the air at the air inlet 2011 to the air duct structure 200.

[0066] 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, and one end of the second channel 202 is provided with at least one air outlet 2022. At the same time, the second channel 202 is provided with a heat-conducting wall 2023, which is disposed between the airflow driving device 300 and the air outlet 2022. The other end of the second channel 202 is connected to the first channel 201. Air enters from the first channel 201 and flows out from the second channel 202.

[0067] An airflow drive device 300 is detachably disposed between the air inlet 2011 and the air outlet 2022. In this embodiment, the airflow drive device 300 is at least one electric fan, the size of which can be determined according to specific needs.

[0068] The airflow drive device 300 starts, stops, or changes its operating power based on parameters obtained from the status of the mobile terminal, and rotates in a certain direction. In this way, the airflow speed inside the mobile terminal can be accelerated. Depending on the temperature, the airflow speed can be controlled to control the heat dissipation or preheating effect on the mobile terminal. When the mobile terminal is in the first state, that is, when the parameters obtained by the mobile terminal through the temperature sensor indicate a low temperature state, the airflow drive device 300 conducts the heat generated by the heat source component of the mobile terminal to the second channel 202 through the first channel 201. The second channel 202 then conducts the heat to the preheating element 500 of the mobile terminal through the heat-conducting structure 400, thereby raising the temperature of the mobile terminal. When the mobile terminal is in the second state, that is, when the parameters obtained by the mobile terminal through the temperature sensor indicate a high temperature state, the heat generated by the heat source component and the preheating element 500 is conducted to the air outlet 2022 through the second channel 202 and the heat-conducting structure 400. At the same time, the air outside the mobile terminal enters the air duct structure 200 through the air inlet 2011 and is dispersed and conducted to the heat source component and the preheating element 500 through the heat-conducting structure 400, thereby lowering the temperature of the mobile terminal.

[0069] like Figure 3As shown, in this 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 and the heat-conducting wall 2023 are attached and assembled, the heat-conducting wall 2023 is disposed between the airflow driving device 300 and the air outlet 2022, the preheating element 500 is disposed on both sides of the heat-conducting groove 403, the heat-conducting structure 400 is also provided with a first heat-conducting surface 401 and a second heat-conducting surface 402, the heat-conducting surfaces are respectively connected to both sides of the heat-conducting groove 403, and the heat-conducting surfaces and the heat-conducting groove 403 are attached to the preheating element 500 of the mobile terminal. When the airflow drive 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 will be convected and conducted along the direction of air flow. The heat-conducting structure 400 attached to the surface of the preheating element 500 increases the heat-conducting area, making the heat conduction effect of the preheating element 500 more significant. When hot air passes through the heat-conducting structure 400, the heat is conducted more efficiently.

[0070] like Figure 4 As shown, in this embodiment, the housing includes a first housing 601 and a second housing 602. The first housing 601 is the front housing of the heat conduction device, and the second housing 602 is the rear housing of the heat conduction device. A first window 6011 is provided on the first housing 601, and a second window 6021 is provided on the second housing 602. The second window 6021 is assembled with the air inlet 2011, and the first window 6011 is assembled with the air outlet 2022. In this embodiment, the number of first windows 6011 corresponds to the number of air inlets 2011, and there is at least one. A first limiting member 203 is provided on the air duct structure 200, and a second limiting member 603 is provided on the first housing 601. 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 component includes various chips 701 on the motherboard, a battery protection board 702, and a battery cell 703. The preheating element 500 is a battery.

[0071] The heat conduction device provided by the above embodiments can actively drive the circulation of hot air inside the mobile terminal using the heat conduction device, so as to improve the air circulation speed, quickly reduce or increase the temperature, and at the same time satisfy the needs of heat dissipation or preheating of the mobile terminal.

[0072] This application also provides a mobile terminal, which includes a display screen, a mid-frame, components, and the aforementioned heat conduction device. The mid-frame is used to assemble the display screen and the back cover of the heat conduction device. The display screen, mid-frame, and back cover are assembled together to form a receiving space for housing various components. When the airflow driving device 300 is working, it can cooperate with the air duct structure 200 to drive the heat from the components in the receiving space to be discharged through the through-hole, or drive the heat from the components in the receiving space to be conducted from the air duct structure 200 to the preheating element 500.

[0073] In this embodiment, the component is provided with a receiving position, the position of which corresponds to the position of the air duct structure 200 and the airflow driving device 300. When the component is 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 position. This method can effectively reduce the component stacking height inside the mobile terminal and reduce the thickness of the mobile terminal. In this embodiment, the component includes a circuit board, which is provided with a receiving position. For example, the circuit board is L-shaped. In other embodiments, the component includes a battery, which is provided with a receiving position. For example, the battery can 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.

[0074] In this embodiment, when the middle frame is assembled with the heat conduction device, when the airflow drive 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 will be convected and conducted along the direction of air flow. The heat conduction structure 400 attached to the surface of the preheating element 500 increases the heat conduction area, making the heat conduction effect of the preheating element 500 more significant. When hot air passes through the heat conduction structure 400, the heat is conducted more efficiently.

[0075] In other embodiments, a heat dissipation plate may also be provided on the surface of the middle frame, or other high-power heat dissipation equipment may be provided, without any specific limitation.

[0076] During assembly, the air duct structure 200 and the airflow drive device 300 are installed on the first housing 601 as needed, corresponding to the air inlet 2011 on the first housing 601. A circuit board is installed on the inner surface of the first housing 601 near the upper end; the circuit board contains a CPU for controlling the operation of the mobile terminal. The heat conduction device is provided with a heat conduction structure 400, which 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 and the heat conduction wall 2023 are fitted together and assembled. The heat conduction wall 2023 is located between the airflow drive device 300 and the air outlet 2022. The battery is located on both sides of the heat conduction groove 403. The heat conduction structure 400 is also provided with a first heat conduction surface 401 and a second heat conduction surface 402. The heat conduction surfaces are respectively connected to both sides of the heat conduction groove 403. The heat conduction surfaces and the heat conduction groove 403 are fitted onto the preheating element 500 of the mobile terminal. The heat conduction device and the first housing 601 form a receiving space. The second housing 602 is assembled onto the first housing 601 to form the mobile terminal.

[0077] like Figure 5 As shown, this application also provides a heat dissipation method applied to the aforementioned mobile terminal. Once triggered by a user, the process in this embodiment runs automatically through the terminal. The steps can be performed sequentially as shown in the flowchart, or multiple steps can be performed simultaneously depending on the actual situation; no limitation is made here. The heat dissipation method includes:

[0078] S501: Obtain the status parameters of the mobile terminal;

[0079] S502: When the mobile terminal is in the first state, the airflow drive device 300 is activated to conduct the heat generated by the heat source component to the preheating element 500.

[0080] S503: When the mobile terminal is found to be in the second state, the airflow drive device 300 is controlled to change its operating power to conduct the heat generated by the heat source component and the preheating component to the outside of the mobile terminal.

[0081] S504: When the mobile terminal is found to be in the third state, the airflow driving device 300 is controlled to stop.

[0082] Through the above implementation method, by detecting the status parameters of the mobile terminal, the airflow drive device 300 is controlled to operate in an appropriate manner, which can save power consumption and achieve effective cooling.

[0083] Specifically, in this embodiment, the status parameter is the application information currently running in the foreground of the mobile terminal. This application information can include the type and / or name of the application, etc. In other embodiments, the status parameter is the temperature information of the mobile terminal at a preset location. In step S501, the application information currently running in the foreground of the mobile terminal can be obtained through a system function call. In other embodiments, the mobile terminal is equipped with a sensor, and the CPU determines the temperature information of the mobile terminal at the preset location by receiving temperature detection values ​​sent by the sensor.

[0084] In step S502, when the obtained state of the mobile terminal is low temperature, the heat conduction device is activated to conduct the heat generated by the heat source component to the preheating element 500.

[0085] In step S503, when the obtained state of the mobile terminal is high temperature, the heat conduction device is activated to conduct the heat generated by the heat source component to the preheating element 500. According to the working parameters of the airflow drive device 300, the airflow drive device 300 cooperates with the air inlet 2011 and the air outlet 2022 to discharge the hot air in the mobile terminal from the air outlet 2022.

[0086] S504 When the obtained mobile terminal status is normal temperature, control the airflow drive device 300 to stop.

[0087] Through the aforementioned heat conduction device, mobile terminal, and heat dissipation method, an air duct structure 200 and an airflow drive device 300 are provided inside the mobile terminal. An air inlet 2011 is provided on the back cover of the mobile terminal. The air duct structure 200 and the air inlet 2011 are arranged opposite each other. During operation, the heat of the components of the mobile terminal is transferred to the display screen and the back cover through heat conduction. The display screen and the back cover exchange heat with the environment through radiation and natural convection. External air enters the inner cavity of the mobile terminal through the air inlet 2011 of the back cover and exchanges heat inside the mobile terminal. Driven by the CPU, the airflow drive device 300 is activated to actively promote the circulation of hot air in the inner cavity and exhaust it from the air outlet 2022, or actively promote the circulation of hot air in the inner cavity and conduct it to the battery, so as to achieve the purpose of active cooling and active heating.

[0088] The corresponding technical features in the above embodiments can be used in combination without causing contradictions or making the solutions unfeasible.

[0089] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0090] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0091] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims. All of these forms are within the protection scope of this application.

Claims

1. A heat conduction device applied to a mobile terminal, characterized in that, The application relates to a heat conduction structure of a mobile terminal. The heat conduction structure comprises a wind channel structure and an airflow driving device, the wind channel structure comprises at least one air inlet and an 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 assembly of the mobile terminal to a preheating element of the mobile terminal through the wind channel structure, wherein the first state refers to a low-temperature state determined by a parameter obtained by a temperature sensor. When the mobile terminal is in a second state, the airflow driving device conducts heat generated by the heat source assembly and the preheating element to the air outlet or conducts air at the air inlet to the wind channel structure through the wind channel structure, wherein the second state refers to a high-temperature state determined by a parameter obtained by the temperature sensor.

2. The heat conducting device of claim 1, wherein The heat conduction structure further comprises a heat conduction structure, the wind channel structure comprises a first channel and a second channel, the air inlet is arranged in the first channel, the air outlet is arranged 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 first state, the airflow driving device conducts heat generated by the heat source assembly to the second channel through the first channel, and the second channel conducts the heat generated by the heat source assembly to the preheating element of the mobile terminal through the heat conduction structure; when the mobile terminal is in the second state, the heat conduction structure conducts heat generated by the heat source assembly and the preheating element to the air outlet and conducts air at the air inlet to the wind channel structure.

3. The heat conducting device of claim 2, wherein The first channel comprises a first air inlet and a second air inlet, and the airflow driving device is arranged between the first air inlet and the second air inlet.

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

5. The heat conducting device of 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 the preheating element of the mobile terminal.

6. The heat conducting device according to claim 4 or 5, characterized in that The heat conduction structure further comprises a first shell and a second shell, the first shell comprises a first window body, the second shell comprises a second window body, the second shell and the first channel form a first cavity, the second window body is communicated with the first cavity, the second shell, the second channel and the heat conduction groove form a second cavity, the first window body is communicated with the air outlet, and the second window body is communicated with the air inlet.

7. The heat conducting device of claim 6, wherein The first shell comprises a first limiting piece, the wind channel structure comprises a second limiting piece, and the wind channel structure and the heat conduction structure are clamped on the first shell through the first limiting piece and the second limiting piece.

8. The heat conducting device of claim 7, wherein The airflow driving device is an electric fan, which starts, stops or changes working power according to the state parameter of the mobile terminal, the preheating element is a battery, and the heat source assembly comprises the battery and a mainboard chip.

9. A mobile terminal, characterized by The application further discloses a heat dissipation method for the mobile terminal. The heat dissipation method comprises the following steps:

10. A heat dissipation method characterized by, acquiring the state parameter of the mobile terminal; controlling the airflow driving device to start to conduct the heat generated by the heat source assembly to the preheating element when the mobile terminal is in the first state, wherein the first state refers to a low-temperature state determined by the parameter acquired by the temperature sensor; controlling the airflow driving device to change working power to conduct the heat generated by the heat source assembly and the preheating assembly to the outside of the mobile terminal when the mobile terminal is in the second state, wherein the second state refers to a high-temperature state determined by the parameter acquired by the temperature sensor; controlling the airflow driving device to stop when the mobile terminal is in the third state, wherein the third state refers to a normal-temperature state determined by the parameter acquired by the temperature sensor. The application further discloses a heat dissipation method for the mobile terminal. The heat dissipation method comprises the following steps: acquiring the state parameter of the mobile terminal; controlling the airflow driving device to start to conduct the heat generated by the heat source assembly to the preheating element when the mobile terminal is in the first state, wherein the first state refers to a low-temperature state determined by the parameter acquired by the temperature sensor; controlling the airflow driving device to change working power to conduct the heat generated by the heat source assembly and the preheating assembly to the outside of the mobile terminal when the mobile terminal is in the second state, wherein the second state refers to a high-temperature state determined by the parameter acquired by the temperature sensor; controlling the airflow driving device to stop when the mobile terminal is in the third state, wherein the third state refers to a normal-temperature state determined by the parameter acquired by the temperature sensor.

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