Uniform temperature plate and terminal device

Abstract

This disclosure relates to a heat spreader and terminal device. The heat spreader includes a shell, a working fluid, and a liquid-absorbing core. The shell has an outer shell and a liner. The outer shell has an internal cavity. The liner covers the inner surface of the outer shell. The working fluid, in a liquid state, is disposed in the cavity. The liner isolates the working fluid from the outer shell. The liquid-absorbing core is disposed in the cavity and is used to adsorb at least a portion of the liquid working fluid. The chemical reaction rate between the liner and the working fluid is lower than the chemical reaction rate between the outer shell and the working fluid, and the density of the outer shell is lower than the density of the liner. In this disclosure, the lower density of the outer shell and the lower chemical reaction rate between the liner and the working fluid allow the heat spreader to maintain a lightweight design while avoiding corrosion by the working fluid, thus extending the service life of the heat spreader.

Description

Technical Field

[0001] This disclosure relates to the field of electronic devices, and more particularly to a vapor chamber and terminal device. Background Technology

[0002] A vapor chamber is a device installed in terminal equipment to help dissipate heat. The vapor chamber is usually equipped with a working fluid that can absorb heat and vaporize, and release heat and liquefy, in order to promote the transfer and transmission of heat, thereby improving the heat dissipation efficiency.

[0003] In related technologies, the outer shell of a heat spreader is generally made of lightweight aluminum to reduce weight. However, aluminum is prone to chemical reaction with the working fluid, affecting the lifespan of the heat spreader. While copper is less likely to react chemically with the working fluid, it is heavier. Utility Model Content

[0004] To overcome the problems existing in related technologies, this disclosure provides a heat spreader and terminal equipment.

[0005] According to some embodiments of this disclosure, a temperature distribution plate is provided, comprising:

[0006] A housing having an outer shell and a liner, the outer shell having an internal receiving cavity, and the liner covering the inner surface of the outer shell;

[0007] The working fluid is in a liquid state and is disposed in the receiving cavity, and the liner isolates the working fluid from the outer shell;

[0008] A liquid-absorbing core is disposed in the receiving cavity, and the liquid-absorbing core is used to adsorb at least part of the working fluid in liquid state;

[0009] The chemical reaction rate between the liner and the working fluid is less than the chemical reaction rate between the shell and the working fluid, and the density of the shell is less than the density of the liner.

[0010] In some embodiments, both the outer shell and the liner are made of metal, and the metal material of the liner has weaker chemical activity than the metal material of the outer shell.

[0011] In some embodiments, the working fluid includes one or more of water, organic solvents, and liquid metals, the housing includes aluminum or an aluminum alloy, and the liner includes copper or a copper alloy.

[0012] In some embodiments, the liquid-absorbing core and the liner are partially spaced apart to form a space for the gaseous flow of the working fluid.

[0013] In some embodiments, the housing further includes a support member disposed within the space between the absorbent core and the liner, with one end of the support member abutting against the absorbent core and the other end abutting against the liner to support the liner and the housing.

[0014] In some embodiments, the housing includes a bottom shell and a cover, the cover being disposed on the bottom shell to form the receiving cavity, the bottom shell and the cover having a connecting surface that connects to each other, and the liner extending to the connecting surface.

[0015] In some embodiments, the receiving cavity includes a first cavity formed in the bottom shell, the liquid-absorbing core is disposed in the first cavity, and the liquid-absorbing core is spaced apart from the cover to allow the gaseous working fluid to flow.

[0016] In some embodiments, the housing further includes a support member, one end of which is connected to the cover and the other end of which abuts against the absorbent core.

[0017] In some embodiments, the support member has a hollow structure.

[0018] According to some embodiments of the present disclosure, a terminal device is provided, including a heat spreader according to any embodiment of the present disclosure.

[0019] In some embodiments, the terminal device further includes a screen, and the heat spreader is disposed on the back of the screen display side.

[0020] The technical solutions provided by the embodiments of this disclosure can include the following beneficial effects: In this disclosure, the housing of the heat exchanger is configured as a double-layer structure with an outer shell and a liner. Compared to the outer shell, the liner, located internally and in direct contact with the working fluid, is less prone to chemical reaction with the working fluid, thus avoiding working fluid consumption and housing corrosion, and extending service life. The density of the outer shell is less than that of the liner, which reduces the weight of the heat exchanger. Terminal devices using the heat exchanger of this disclosure can achieve stable and long-lasting heat dissipation and are also lightweight.

[0021] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0023] Figure 1 This is a top view of a heat spreader according to some embodiments of the present disclosure.

[0024] Figure 2This is a cross-sectional schematic diagram of a heat spreader according to some embodiments of the present disclosure.

[0025] Figure 3 This is a schematic cross-sectional view of a heat spreader shell material according to some embodiments of the present disclosure.

[0026] Figure 4 This is a schematic diagram of an explosion of a heat spreader according to some embodiments of the present disclosure.

[0027] Figure 5 This is a cross-sectional schematic diagram of a heat spreader according to some embodiments of the present disclosure.

[0028] Figure 6 This is a manufacturing process flow diagram of a heat spreader according to some embodiments of the present disclosure.

[0029] Figure 7 This is an exploded view of a portion of the structure of a terminal device according to some embodiments of the present disclosure.

[0030] Figure 8 This is a schematic diagram of the back structure of a terminal device according to some embodiments of the present disclosure.

[0031] Figure 9 This is a block diagram illustrating a terminal device according to some embodiments of the present disclosure. Attached image description:

[0033] 1. Shell; 11. Outer shell; 12. Liner; 13. Receiving cavity; 131. Spacer; 14. Support; 141. Hollow structure; 15. Bottom shell; 151. First cavity; 16. Cover; 161. Second cavity; 17. Connecting surface; 2. Liquid absorption core; 3. Screen; 4. Heat spreader; 5. Middle frame; 6. Adhesive backing. Detailed Implementation

[0034] Some embodiments of this disclosure will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. Various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will become apparent upon understanding this disclosure. For example, the order of operations described herein is merely illustrative and is not limited to those orders set forth herein, but can be changed as will become apparent upon understanding this disclosure, except for operations that must be performed in a particular order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0035] The embodiments described in the following examples of this disclosure are not representative of all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0036] The present disclosure provides some embodiments of a heat spreader that is applied to cooling scenarios for terminal devices.

[0037] In related technologies, heat exchangers typically use aluminum as the shell to reduce their weight. However, aluminum reacts chemically with the working fluid, causing fluid consumption and corrosion of the aluminum shell, which reduces the lifespan of the heat exchanger and consequently affects the stability of the heat dissipation performance of the terminal equipment.

[0038] In view of this, some embodiments of the present disclosure provide a temperature distribution plate.

[0039] Figure 1 This is a top view of a heat spreader according to some embodiments of the present disclosure. Figure 2 This is a cross-sectional schematic diagram of a heat spreader according to some embodiments of the present disclosure, such as... Figure 1 and Figure 2 As shown, the heat spreader includes a shell 1, a working fluid, and a liquid-absorbing core 2. The shell 1 includes an outer shell 11 and a liner 12. The outer shell 11 has an internal cavity 13, and the liner 12 covers the inner surface of the outer shell 11. The working fluid is in a liquid state and is disposed in the cavity 13. The liner 12 isolates the working fluid from the outer shell 11. The liquid-absorbing core 2 is disposed within the cavity 13 and is used to adsorb at least a portion of the liquid working fluid. The chemical reaction rate between the liner 12 and the working fluid is less than the chemical reaction rate between the outer shell 11 and the working fluid, and the density of the outer shell 11 is less than the density of the liner 12.

[0040] In some embodiments of this disclosure, the housing 1 is configured as a double-layer structure with an outer shell 11 and a liner 12, and the chemical reaction rate between the liner 12 and the working fluid is lower than that between the outer shell 11 and the working fluid. This can effectively avoid or delay corrosion, prevent the consumption of the working fluid, and thus extend the service life of the heat exchanger. Setting the density of the outer shell 11 to be lower than that of the liner 12 can also keep the overall weight of the heat exchanger low, which is beneficial for the lightweight design of the heat exchanger.

[0041] In some embodiments of this disclosure, applying the heat spreader of this disclosure to a terminal device can enable the terminal device to maintain a lightweight design while having a stable cooling effect, thereby improving the user experience.

[0042] In some embodiments of this disclosure, the working fluid is a medium used to transfer heat to achieve a heat dissipation effect. It absorbs heat and evaporates, and dissipates heat and liquefies to achieve heat transfer. When the working fluid is in liquid form, it is absorbed by the liquid-absorbing core 2 and evaporates into a gaseous state after being heated. That is, when the working fluid is working on the heat spreader, its state can change between solid and liquid.

[0043] In some embodiments of this disclosure, the wick 2 is a component for containing the working fluid, and it can be configured as foam, mesh, or woven thread, etc., without limitation in this disclosure. The wick 2 can absorb liquid working fluid through capillary action and utilize its large surface area to promote the evaporation and heat absorption of the working fluid.

[0044] In some embodiments of this disclosure, the absorbent core 2 can be made of a variety of materials, such as one or more of copper, stainless steel, and aluminum. When aluminum or its alloys are used to make the absorbent core 2, a passivation process can be applied to the aluminum or its alloys to prevent the absorbent core 2 from chemically reacting with the working fluid.

[0045] In some embodiments of this disclosure, the outer shell 11 is made of metal, and the liner 12 is also made of metal, wherein the chemical activity of the metal material of the liner 12 is weaker than that of the metal material of the outer shell 11.

[0046] In some embodiments of this disclosure, the outer shell 11 and the liner 12 are made of metal. For metals, their chemical activity can essentially represent their reaction rate with the same working fluid. Selecting the material of the outer shell 11 and the liner 12 based on chemical activity simplifies the material selection process. For example, the selection can be made directly by referring to the periodic table.

[0047] In some embodiments of this disclosure, the housing 11 may also be made of a non-metallic, lightweight material, such as plastic, carbon fiber, etc.

[0048] In some embodiments of this disclosure, the working fluid includes one or more of water, organic solvents, and liquid metals. The housing 11 comprises aluminum or an aluminum alloy, and the liner 12 comprises copper or a copper alloy.

[0049] In some embodiments of this disclosure, water, organic solvents, and liquid metals do not react chemically with copper or the reaction rate is extremely slow, thus avoiding corrosion of the casing 1 by the working fluid. Furthermore, aluminum is lightweight; using aluminum for the casing 11 effectively reduces the weight of the casing 1.

[0050] Figure 3 This is a schematic cross-sectional view of a heat spreader shell material according to some embodiments of this disclosure, such as... Figure 3As shown, the aluminum outer shell 11 and the copper backing layer 12 are bonded together. The aluminum outer shell 11 and the copper backing layer 12 can be bonded in various ways, such as solid-solid composite, solid-liquid composite, etc., but are not limited to these. Solid-solid composite and solid-liquid composite are processes well known to those skilled in the art, and will not be described in detail here. The aluminum outer shell 11 and the copper backing layer 12 can also be bonded by electroplating, for example, using the aluminum outer shell 11 as a substrate and the copper layer as the electroplating layer.

[0051] In some embodiments of this disclosure, such as Figure 2 As shown, the liquid-absorbing core 2 and the liner 12 are partially spaced apart to form a space 131 for the flow of gaseous working fluid.

[0052] In some embodiments of this disclosure, a space 131 is left between the liquid absorbent core 2 and the liner 12. After the liquid working fluid in the liquid absorbent core 2 is vaporized, it can flow and diffuse rapidly through the space 131 to increase the speed of gas flow and accelerate heat dissipation.

[0053] In some embodiments of this disclosure, the heat spreader extends along a plane to form a flat plate structure, and the space 131 extends in the same direction as the heat spreader to quickly and evenly transfer the temperature of the heat spreader to the entire heat spreader through airflow, thereby improving the diffusion effect.

[0054] In some embodiments of this disclosure, the housing 1 further includes a support member disposed within the space 131 between the absorbent core 2 and the liner 12. One end of the support member abuts against the absorbent core 2, and the other end abuts against the liner 12, so as to support the liner 12 and the housing 11.

[0055] In some embodiments of this disclosure, a support member is provided between the liquid-absorbing core 2 and the liner 12 to support the outer shell 11 at the gap space 131, preventing deformation of the shell 1 at the gap space 131. In particular, the receiving cavity 13 of the heat spreader needs to be evacuated, so the shell 1 of the heat spreader needs to withstand the pressure difference between the inside and outside of the receiving cavity 13. Providing a support member can prevent the pressure difference caused by the vacuum from damaging the shell 1.

[0056] In some embodiments of this disclosure, the support member can be connected and fixed to the liquid absorption core 2, or it can be connected and fixed to the housing 1, or the support member can be an independent component.

[0057] In some embodiments of this disclosure, the outer surface of the support is made of copper to prevent the support from being corroded by a chemical reaction with the working fluid, and also to avoid additional consumption of the working fluid.

[0058] In some embodiments of this disclosure, the support may be made of aluminum to reduce its weight.

[0059] In some embodiments of this disclosure, the support member may be hollow to further reduce its weight.

[0060] Figure 4 This is a schematic diagram of an explosion of a heat spreader according to some embodiments of the present disclosure. Figure 5 This is a cross-sectional schematic diagram of a heat spreader according to some embodiments of the present disclosure, such as... Figure 4 , Figure 5 As shown, the housing 1 includes a bottom shell 15 and a cover 16, with the cover 16 covering the bottom shell 15 to form a receiving cavity 13. The bottom shell 15 and the cover 16 have a connecting surface 17 that connects to each other, and the liner 12 extends to the connecting surface 17.

[0061] In some embodiments of this disclosure, extending the liner 12 to the connection surface 17 of the bottom shell 15 and the cover 16 can prevent gaps from appearing at the connection surface 17 that would allow the working fluid to directly contact the outer shell 11 and cause corrosion of the outer shell 11.

[0062] In some embodiments of this disclosure, the bottom shell 15 and the cover 16 can be connected in various ways, such as bonding or welding. Among the welding methods, diffusion welding can be selected, but it is not limited to this.

[0063] After the bottom shell 15 and the cover 16 are connected by welding (such as diffusion welding), the bottom shell 15 and the cover 16 can be fused together, so that the bottom shell 15 and the cover 16 no longer have independent connecting surfaces 17, but are fused into one.

[0064] In some embodiments of this disclosure, such as Figure 4 , Figure 5 As shown, the receiving cavity 13 includes a first cavity 151, which is formed on the bottom shell 15. The liquid suction core 2 is disposed in the first cavity 151 and is spaced apart from the cover 16 to allow the flow of gaseous working fluid.

[0065] In some embodiments of this disclosure, the liquid-absorbing core 2 is placed in the first cavity 151 of the receiving cavity 13. After the liquid working fluid in the liquid-absorbing core 2 is vaporized, it will directly evaporate into the space 131 between the liquid-absorbing core 2 and the cover 16. The vaporized working fluid liquefies and releases heat after contacting the shell 1 which is separated from the liquid-absorbing core 2, and transfers the heat on one side of the heat spreader to the other side.

[0066] In some embodiments of this disclosure, the receiving cavity 13 further includes a second cavity 161 formed in the cover 16. The absorbent core 2 may be housed solely in the first cavity 151 or partially in the second cavity 161; this disclosure does not limit this. The sizes of the first cavity 151 and the second cavity 161 can be set as needed; this disclosure also does not limit this.

[0067] In some embodiments of this disclosure, such as Figure 5 As shown, the housing 1 also includes a support member 14, one end of which is connected to the cover 16 and the other end of which abuts against the liquid-absorbing core 2.

[0068] In some embodiments of this disclosure, the support member 14 is connected to the cover 16, which simplifies the installation process and prevents noise caused by the movement of the support member 14 within the space 131. Furthermore, the support member 14 can also fix the liquid-absorbing core 2 to the inner surface of the bottom shell 15, improving the stability of the entire temperature distribution plate.

[0069] In some embodiments of this disclosure, the support member 14 can be manufactured in various ways. For example, it can be formed by applying pressure to the outer surface of the cover 16 to form the support member 14 through a stamping process. This process is relatively simple, and the recess formed after stamping helps to increase the heat dissipation area. For example, it can be formed by using a chemical etching process to form the support member 14 on the inner surface of the cover 16 through corrosion and dissolution. For example, the support member 14 can be manufactured separately and then connected and fixed to the inner surface of the cover 16 by means of bonding, welding, etc.

[0070] In some embodiments of this disclosure, such as Figure 5 As shown, the support member 14 has a hollow structure 141 to reduce the weight of the support member 14, which in turn helps to make the heat exchange plate lighter.

[0071] In some embodiments of this disclosure, a support member 14 is formed on the inner surface of the cover 16 using a stamping process. Therefore, the material of the support member 14 is the same as that of the cover 16, both consisting of an outer shell 11 and a liner 12, i.e., both having copper and aluminum layers.

[0072] In some embodiments of this disclosure, the housing 1 includes a plurality of connectors distributed on the inner surface of the cover 16 to provide reliable support for the cover 16 and the bottom shell 15.

[0073] The chemical reaction rate, "...does not react with..." and other similar expressions in this disclosure are all descriptions of the ease and rate of chemical reaction between two substances. One way to understand "...does not react with..." is that the chemical reaction rate between the two substances is low, rather than limiting the two substances to absolutely not reacting with each other.

[0074] For the heat exchange plate of the present disclosure embodiments, the present disclosure also proposes a heat exchange plate manufacturing process.

[0075] Figure 6 This is a manufacturing process flow diagram of a heat spreader according to some embodiments of the present disclosure, such as... Figure 6 As shown, the manufacturing process of a heat spreader includes the following steps:

[0076] S101: Stamping and cleaning of the bottom shell and cover, and pretreatment of the liquid suction core.

[0077] S102: Insert the absorbent core into the bottom shell, and assemble the bottom shell and the cover into a shell and weld them together.

[0078] S103: Install the injection pipe into the shell.

[0079] S104: Test whether there is a leak in the housing.

[0080] S105: Inject the working medium into the shell through the water injection pipe.

[0081] S106: Remove impurities from inside the casing.

[0082] S107: Seal the injection pipe.

[0083] S108: Remove excess infusion tubing.

[0084] S109: Quality Inspection.

[0085] S110: Packaging.

[0086] The heat exchange plate disclosed herein can be manufactured through the above-described process steps.

[0087] In step S101, the pretreatment of the absorbent core 2 includes cutting and shaping the absorbent core 2 and annealing it to obtain an absorbent core 2 that meets the requirements (such as shape and size). When the absorbent core 2 is a copper mesh, the copper mesh is cut and annealed. The bottom shell 15 and the cover 16 need to have their oxide layers removed by cleaning.

[0088] In step S102, the welding process for the bottom shell 15 and the cover 16 can be diffusion welding. The pressure range for diffusion welding is 2-100 MPa, and the temperature range is 100-500℃, but it is not limited to these ranges. Diffusion welding is a mature welding process, and the details of this process will not be elaborated further in this disclosure. After diffusion welding, the heat spreader needs to undergo oxidation-reduction treatment.

[0089] In step S103, the infusion tube can be bonded to the housing 1 using ultraviolet curing adhesive (UV adhesive) and connected to the receiving cavity 13 inside the housing 1.

[0090] In step S104, the test for whether housing 1 leaks can be performed in a vacuum environment to ensure the test results.

[0091] In step S105, the working medium injected can be water or other organic solvents.

[0092] In step S106, impurities inside the housing 1 are removed through the injection tube. During this process, the time needs to be controlled to avoid drawing out the working medium injected into the receiving cavity 13. This process can be carried out in two steps, which can be referred to in the industry as "first removal" and "second removal".

[0093] In step S107, the filling tube can be sealed using ultrasonic welding, or other welding processes such as resistance welding, argon arc welding, and brazing.

[0094] In step S108, the step of removing excess infusion tubing includes cutting off the head, pressing the head, and leveling operations to remove the ineffective infusion tubing.

[0095] Step S109 may include helium leak testing, aging, inkjet printing, performance testing, and full inspection to eliminate non-compliant vapor chambers. All of the above processes are mature technologies, and this disclosure will not elaborate on the details of each process.

[0096] This disclosure also proposes a terminal device, including the heat spreader in any embodiment of this disclosure.

[0097] Correspondingly, the advantages of the aforementioned heat spreader, including the advantages of its terminal equipment, will not be elaborated here.

[0098] Figure 7 This is an exploded view of a portion of the structure of a terminal device according to some embodiments of this disclosure. Figure 8 This is a schematic diagram of the rear structure of a terminal device according to some embodiments of the present disclosure, such as... Figure 7 and Figure 8 As shown, the terminal device also includes a screen 3, and a heat spreader 4 is disposed on the back of the display side of the screen 3.

[0099] In some embodiments of this disclosure, the heat dissipation plate 4 is disposed on the back side of the display side of the screen 3, which can not only optimize the heat dissipation effect of the screen 3, but also avoid the influence of the shape of the middle frame 5 and other structures on the heat dissipation plate 4, making the shape design of the heat dissipation plate 4 less restricted.

[0100] In some embodiments of this disclosure, the heat spreader 4 is bonded to the back of the display side of the screen 3 by adhesive 6.

[0101] In some embodiments of this disclosure, the heat exchange plate 4 may also be stacked on the middle frame 5 of the terminal device.

[0102] In some embodiments of this disclosure, the terminal device may be a mobile phone, tablet, or other device, but is not limited thereto.

[0103] In some embodiments of this disclosure, the heat spreader 4 is configured as a double-layer structure with an aluminum outer shell 11 and a copper inner lining 12. This configuration ensures that the aluminum outer shell 11 is lightweight while the copper lining 12 has high corrosion resistance and is less likely to react chemically with the working fluid, thereby extending the service life of the heat spreader 4. Terminal devices using the heat spreader 4 in the embodiments of this disclosure can achieve both weight reduction and extended service life.

[0104] Figure 9 This is a block diagram illustrating a terminal device according to some embodiments of the present disclosure. For example, the terminal device 7 may be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet device, medical device, fitness equipment, personal digital assistant, etc.

[0105] Reference Figure 9 The terminal device 7 may include one or more of the following components: processing component 72, memory 73, power component 74, multimedia component 75, audio component 76, input / output (I / O) interface 77, sensor component 78, and communication component 79.

[0106] Processing component 72 typically controls the overall operation of terminal device 7, such as operations associated with display, telephone calls, data communication, camera operation, and recording. Processing component 72 may include one or more processors 71 to execute instructions to complete all or part of the steps of the methods described above. Furthermore, processing component 72 may include one or more modules to facilitate interaction between processing component 72 and other components. For example, processing component 72 may include a multimedia module to facilitate interaction between multimedia component 75 and processing component 72.

[0107] Memory 73 is configured to store various types of data to support operation on terminal device 7. Examples of such data include instructions for any application or method operating on terminal device 7, contact data, phonebook data, messages, pictures, videos, etc. Memory 73 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0108] The power component 74 provides power to the various components of the terminal device 7. The power component 74 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power to the terminal device 7.

[0109] Multimedia component 75 includes a screen that provides an output interface between terminal device 7 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touchscreen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 75 includes a front-facing camera and / or a rear-facing camera. When terminal device 7 is in an operating mode, such as a shooting mode or video mode, the front-facing camera and / or rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0110] Audio component 76 is configured to output and / or input audio signals. For example, audio component 76 includes a microphone (MIC) configured to receive external audio signals when terminal device 7 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 73 or transmitted via communication component 79. In some embodiments, audio component 76 also includes a speaker for outputting audio signals.

[0111] Input / output (I / O) interface 77 provides an interface between processing component 72 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to, home buttons, volume buttons, power buttons, and lock buttons.

[0112] Sensor assembly 78 includes one or more sensors for providing status assessments of various aspects of terminal device 7. For example, sensor assembly 78 can detect the on / off state of terminal device 7, the relative positioning of components such as the display and keypad of terminal device 7, changes in the position of terminal device 7 or a component of terminal device 7, the presence or absence of user contact with terminal device 7, orientation or acceleration / deceleration of terminal device 7, and temperature changes of terminal device 7. Sensor assembly 78 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 78 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, sensor assembly 78 may also include an accelerometer, a gyroscope, a magnetometer, a pressure sensor, or a temperature sensor.

[0113] Communication component 79 is configured to facilitate wired or wireless communication between terminal device 7 and other devices. Terminal device 7 can access wireless networks based on communication standards, such as WiFi, 3G, 4G, 5G, other communication standards, or combinations thereof. In some embodiments of this disclosure, communication component 79 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In some embodiments of this disclosure, communication component 79 also includes a near-field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0114] In some embodiments of this disclosure, the terminal device 7 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the methods described above.

[0115] In the above detailed description, reference has been made to the accompanying drawings, which illustrate specific aspects of this disclosure by way of illustration. In this regard, terms indicating direction or positional relationship, such as “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential,” are used with reference to the orientation of the described figures. Since components of the described device can be positioned in multiple different orientations, directional terms are used for illustrative purposes and not for limitation. It should be understood that other aspects can be utilized and structural or logical changes can be made without departing from the concept of this disclosure. Therefore, the following detailed description should not be considered limiting.

[0116] It should be understood that, unless otherwise specifically indicated, features of various embodiments of this disclosure described herein can be combined with each other. As used herein, the term "and / or" includes any of the associated listed items and any combination of any two or more; it should be understood that, unless otherwise expressly specified and limited, the terms "joining," "attaching," "mounting," "connecting," "linking," "fixing," etc., used in the embodiments of this disclosure should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral part; as a mechanical connection, an electrical connection, or a communicative connection; as a direct connection or an indirect connection through an intermediate medium; as a connection within two elements or an interaction between two elements, unless otherwise expressly limited. Those skilled in the art will understand the specific meaning of the above terms herein according to the specific circumstances.

[0117] Furthermore, the term "above" as used herein with respect to components, elements, or material layers formed or located "above" a surface may be used to indicate that the component, element, or material layer is "indirectly" positioned (e.g., placed, formed, deposited, etc.) on the surface such that one or more additional components, elements, or layers are arranged between the surface and the component, element, or material layer. However, the term "above" as used with respect to components, elements, or material layers formed or located "above" a surface may also optionally have a specific meaning: that the component, element, or material layer is "directly" positioned (e.g., placed, formed, deposited, etc.) on the surface, for example, in direct contact with the surface.

[0118] It should be understood that spatial relative terms, such as “above,” “upper,” “below,” and “lower,” are used herein to describe the relationship between one element and another shown in the figures. In addition to the orientation depicted in the figures, these spatial relative terms are also intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as “above” or “upper” relative to another element would be “below” or “lower” relative to that other element. Thus, depending on the spatial orientation of the device, the term “above” encompasses both above and below orientations. Devices may have other orientations (e.g., rotated 90 degrees or in other orientations), and the spatial relative terms used herein should be interpreted accordingly.

[0119] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited to these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Therefore, without departing from the teachings of the examples described herein, a first component, part, region, layer, or section mentioned in the examples may also be referred to as a second component, part, region, layer, or section. Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include at least one of that feature.

[0120] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0121] In this description, "multiple" means at least two, referring to two or more, such as two, three, etc., unless otherwise explicitly specified. Other quantifiers are similar. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise. Furthermore, unless otherwise specified or clearly indicated from the context, the articles "a" and "an" as used in this application and the appended claims are generally understood to mean "one or more."

[0122] It should be understood that, unless otherwise specifically indicated, features of various embodiments of this disclosure described herein can be combined with each other. As used herein, the term "and / or" includes any one of the related listed items and any combination of two or more; "and / or" describes the association relationship between related objects, indicating that three relationships may exist, for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. Similarly, "at least one of..." includes any one of the related listed items and any combination of two or more.

[0123] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0124] Furthermore, the term "exemplary" is used herein to indicate that it serves as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as advantageous compared to other aspects or designs. Rather, the use of the term "exemplary" is intended to present concepts in a concrete manner. As used herein, the term "or" is intended to indicate an inclusive "or" rather than an exclusive "or." That is, unless otherwise specified or clear from the context, "X applies A or B" is intended to indicate any of the natural inclusive permutations. That is, if X applies A; X applies B; or X applies both A and B, then applying A or B satisfies the condition under any of the foregoing instances.

[0125] Similarly, although this disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding the specification and drawings. This disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components described above (e.g., elements, resources, etc.), unless otherwise indicated, the terminology used to describe such components is intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if it is not structurally equivalent to the disclosed structure. Furthermore, although specific features of this disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations, as may be desired and advantageous to any given or particular application. Moreover, with regard to the terms “comprising,” “owning,” “having,” “having,” or variations thereof as used in this disclosure, such terms are intended to be inclusive in a manner similar to the term “including.”

[0126] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein.

[0127] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A vapor chamber, characterized by, include: A housing having an outer shell and a liner, the outer shell having an internal receiving cavity, and the liner covering the inner surface of the outer shell; The working fluid is in a liquid state and is disposed in the receiving cavity, and the liner isolates the working fluid from the outer shell; A liquid-absorbing core is disposed in the receiving cavity, and the liquid-absorbing core is used to adsorb at least part of the working fluid in liquid state; The chemical reaction rate between the liner and the working fluid is less than the chemical reaction rate between the shell and the working fluid, and the density of the shell is less than the density of the liner.

2. The vapor chamber of claim 1, wherein, Both the outer shell and the liner are made of metal, and the chemical activity of the metal material in the liner is weaker than that of the metal material in the outer shell.

3. The vapor chamber of claim 2, wherein, The working medium includes one or more of water, organic solvents and liquid metals, the outer shell includes aluminum or an aluminum alloy, and the liner includes copper or a copper alloy.

4. The vapor chamber according to any one of claims 1 to 3, characterized in that, The liquid-absorbing core and the liner are partially spaced apart to form a space for the gaseous working fluid to flow.

5. The vapor chamber of claim 4, wherein, The housing also includes a support member disposed in the space between the absorbent core and the liner. One end of the support member abuts against the absorbent core, and the other end abuts against the liner to support the liner and the housing.

6. The vapor chamber of claim 4, wherein, The housing includes a bottom shell and a cover, the cover being disposed on the bottom shell to form the receiving cavity, the bottom shell and the cover having a connecting surface that connects to each other, and the liner extending to the connecting surface.

7. The vapor chamber of claim 6, wherein, The receiving cavity includes a first cavity formed in the bottom shell, and the liquid-absorbing core is disposed in the first cavity. The liquid-absorbing core is spaced apart from the cover to allow the gaseous working fluid to flow.

8. The vapor chamber of claim 7, wherein, The housing also includes a support member, one end of which is connected to the cover and the other end of which abuts against the liquid-absorbing core.

9. The vapor chamber of claim 8, wherein, The support component has a hollow structure.

10. A terminal device, comprising: The temperature distribution plate includes any one of claims 1-9.

11. The terminal device according to claim 10, characterized by The terminal device also includes a screen, and the heat spreader is disposed on the back of the screen display side.

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