Working medium, liquid cooling module, electronic device and preparation method of working medium

Abstract

This application discloses a working fluid, a liquid-cooled module, an electronic device, and a method for preparing the working fluid, relating to the field of electronic device technology. The working fluid may include: a first medium and a second medium; a liquid interface exists between the second medium and the first medium; the heat dissipation coefficient of the first medium is greater than that of the second medium. The greater heat dissipation coefficient of the first medium results in better heat dissipation performance for the working fluid containing the first medium. The liquid interface between the second medium and the first medium moves relative to the cavity containing the working fluid during its movement, thereby achieving a significant flow visualization effect. The working fluid disclosed in this application can be applied in electronic devices, enabling at least a portion of the electronic device to exhibit a flow visualization effect.

Description

[0001] This application claims priority to Chinese patent application filed on May 30, 2023, with application number 202310631049.6 and entitled "Working medium, liquid cooling module, electronic device and method for preparing working medium", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electronic equipment technology, and in particular to working fluids, liquid cooling modules, electronic equipment, and methods for preparing working fluids. Background Technology

[0003] A liquid cooling module may include a pump and a working substance. The working substance can be understood as the carrier through which thermal energy and mechanical energy are converted into each other. The pump acts as the power source for the working substance, providing power for its flow. During its flow, the working substance acts as a carrier for heat transfer, enabling the liquid cooling module to achieve heat dissipation.

[0004] In recent years, it has become possible to visualize the flow of working fluids, creating technologically advanced flow display areas. The working fluids disclosed in related technologies for visualizing the flow state include water and dyes. The presence of dyes allows the working fluid to display color, thus enabling the flow process to be visualized.

[0005] Colored working fluids can create a visual flow effect in larger liquid-cooled modules. However, liquid-cooled modules used in electronic devices are relatively small (typically with cavity sizes on the order of microliters), and the flow visualization of working fluids disclosed in related technologies is poor. Summary of the Invention

[0006] This application discloses a working fluid, a liquid cooling module, an electronic device, and a method for preparing the working fluid. The working fluid may include a first medium and a second medium, and there is a liquid interface between the first medium and the second medium. When the working fluid moves, the liquid interface moves relative to the cavity used to contain the working fluid, thereby producing a significant flow visualization effect.

[0007] The first aspect of this application discloses a working medium, comprising: a first medium; a second medium, wherein there is a liquid interface between the first medium and the second medium, and the heat dissipation coefficient of the first medium is greater than that of the second medium.

[0008] In this implementation, the working medium may include a first medium and a second medium. A liquid interface exists between the second medium and the first medium. The heat dissipation coefficient of the first medium is greater than that of the second medium, resulting in better heat dissipation performance for the working medium containing the first medium. The liquid interface between the second medium and the first medium moves relative to the inner wall of the cavity during the movement of the working medium, thereby achieving a significant flow visualization effect. The working medium disclosed in this application can be applied in electronic devices, enabling at least a portion of the electronic device to have a flow visualization effect.

[0009] In conjunction with the first implementation of the first aspect, it also includes: a first additive, which is used to reduce the surface tension of the first medium.

[0010] In this implementation, the working fluid may include a first additive, which is used to reduce the surface tension of the first medium. The first additive can improve the wetting performance of the working fluid in the cavity and reduce the problem of the first medium (working fluid) adhering to the wall.

[0011] In conjunction with the second implementation method of the first aspect, the first auxiliary agent includes at least one of fluorocarbon surfactants, polyoxyethylene ether nonionic surfactants, and gemini surfactants.

[0012] In this implementation, the first auxiliary agent includes at least one of the following: fluorocarbon surfactants, polyoxyethylene ether nonionic surfactants, and gemini surfactants. The first auxiliary agent includes hydrophilic and hydrophobic groups. The hydrophilic groups of the first auxiliary agent can contact the first medium, while the hydrophobic groups of the first auxiliary agent are oriented away from the first medium, i.e., the hydrophobic groups encapsulate the first medium. During injection / flow into the cavity, the hydrophobic groups contact the inner wall of the cavity, resulting in good wetting performance of the hydrophobic groups on the cavity, thereby improving the wetting of the working fluid on the inner wall of the cavity and alleviating the problem of working fluid adhesion to the wall.

[0013] Combining the third implementation method of the first aspect, the molecular structural formula of fluorocarbon surfactants may include: ; In the equation x=6, y is between 5 and 14.

[0014] In this implementation, In this context, groups containing carbon-fluorine bonds (CF) can act as hydrophobic groups, and aldehyde groups ( As a hydrophilic group, it enables the molecular structure to contain Fluorocarbon surfactants can reduce the surface tension of the first medium, thus alleviating the problem of the working fluid adhering to the wall.

[0015] Combining the fourth implementation method of the first aspect, the molecular structural formula of polyoxyethylene ether nonionic surfactants may include: , At least one of them, in , The R in the middle includes: a hydrophobic group or a hydrogen atom.

[0016] In this implementation, , In this context, R can act as a hydrophobic group, and the ether bond (-O-) can act as a hydrophilic group, resulting in a molecular structure containing... , The polyoxyethylene ether nonionic surface agent (first additive) can reduce the surface tension of the first medium and alleviate the problem of the working fluid adhering to the wall.

[0017] Combining the fifth implementation method of the first aspect, the molecular structural formula of the Gemini surfactant includes: ; , , , , , At least one of them is a hydrophilic group, and , , , , , At least one of them is a hydrophobic group.

[0018] The disclosed gemini surfactant molecule includes a hydrophilic group and a hydrophobic group. In the working medium, the hydrophilic group of the gemini surfactant is soluble in the first medium, so that the hydrophobic group of the gemini surfactant faces away from the first medium. During flow, the hydrophobic group exists between the first medium and the inner wall of the cavity, which reduces the surface tension of the first medium and improves the wetting performance of the first medium on the inner wall of the cavity, thereby alleviating the problem of the first medium adhering to the wall.

[0019] Combining the sixth implementation method of the first aspect, and and and All include: hydrophobic groups; and All include: hydrophilic groups.

[0020] In the gemini surfactant molecular structure disclosed in this implementation, , , , Includes: hydrophobic groups; , It includes hydrophilic groups. Gemini surfactants have good symmetry, which gives them greater rigidity. During flow, gemini surfactants can quickly reach the space between the first medium and the inner wall of the cavity, reducing the surface tension of the first medium and inhibiting its adhesion to the wall.

[0021] In conjunction with the seventh implementation method of the first aspect, the mass fraction of the first auxiliary agent in the working fluid is 0.01%-20%.

[0022] When the mass fraction of the first additive in the working fluid is greater than or equal to 0.01%, the working fluid can have better wetting properties on the inner wall of the cavity, thus alleviating the problem of the working fluid adhering to the wall.

[0023] When the mass fraction of the first additive in the working fluid is less than or equal to 20%, the mass fraction of the first medium in the working fluid is relatively large, and the heat dissipation performance of the corresponding working fluid is better.

[0024] When the mass fraction of the first additive in the working fluid is between 0.01% and 20%, both the heat dissipation performance of the working fluid and the wetting performance of the inner wall of the cavity can be taken into account.

[0025] In conjunction with the eighth implementation of the first aspect, it also includes: a second auxiliary agent used to disrupt the emulsion.

[0026] In this implementation, the working fluid includes a second additive, which is used to disrupt the emulsion. When the second medium is dispersed in the first additive in the form of small droplets to form an emulsion, under the action of the second additive, the small droplets of the second medium aggregate to form a continuous phase of the second medium, thereby restoring the liquid interface between the first and second media and enabling the working fluid to regain its flow visualization effect.

[0027] In conjunction with the ninth implementation method of the first aspect, the second auxiliary agent includes at least one of the following: organic alcohols, organic ketones, organic acids, lipids, ethers, aromatics, and organic salts.

[0028] In this implementation, the second auxiliary agent includes at least one of the following: organic alcohols, organic ketones, organic acids, lipids, ethers, aromatic compounds, and silicone oils. The second auxiliary agent has a stronger binding affinity to the first medium than the second medium has to the first medium. After emulsification of the first and second media, the first medium preferentially binds to the second auxiliary agent, resulting in a reduction in the thickness of the hydration layer on the surface of the droplets. The second medium in droplet form tends to aggregate to form a liquid interface with the continuous phase (there is a liquid interface between the continuous phase and the first medium), thereby restoring the liquid interface between the first and second media, thus achieving the demulsification effect.

[0029] Combining the tenth implementation method of the first aspect, the molecular structural formula of organosilicon oil includes: R includes at least one of methyl, methoxy, ethyl, ethoxy, propyl, butyl, pentyl, hexyl, heptyl, octyl, phenyl, hydroxyl, and vinyl, and the side chain of R may preferably be a C3-C18 alkyl substituent.

[0030] In this implementation, It contains hydrophilic silicon-oxygen bonds (-Si-O), and R includes H, methyl, methoxy, ethyl, ethoxy, propyl, butyl, pentyl, hexyl, heptyl, octyl, phenyl, hydroxyl, vinyl, etc., and the R side chain can preferably have C3-C18 alkyl substituents, making The binding affinity between the first medium and the second medium is stronger than that between the second medium and the first medium. After emulsification of the first and second media, the first medium preferentially binds with the second medium. The combination leads to a reduction in the thickness of the hydration layer on the surface of the small droplets. The second medium, existing in the form of small droplets, tends to aggregate to form a second medium existing in the form of a continuous phase, thereby restoring the liquid interface between the first medium and the second medium, thus achieving the effect of demulsification.

[0031] Combined with the eleventh implementation method of the first aspect, In the case of n, n is between 0 and 100.

[0032] exist When n is greater than or equal to 0, so that It has high thermal stability, containing The working fluid has good thermal stability.

[0033] exist When n is less than or equal to 100, It has high rigidity so that the working fluid containing the second additive can quickly recover the liquid interface after emulsification, that is, the working fluid has a stable liquid interface.

[0034] exist When n is between 0 and 100, the working fluid balances high thermal stability and a stable liquid interface.

[0035] Combining the twelfth implementation method of the first aspect, the molecular structural formula of the second medium includes: The R in the formula includes at least one of the following: methyl, methoxy, ethyl, ethoxy, propyl, butyl, pentyl, hexyl, heptyl, octyl, phenyl, hydroxyl, and vinyl.

[0036] In this implementation, In this implementation method, the following is disclosed: It can be used as a second medium to form a liquid interface with the first medium.

[0037] In conjunction with the thirteenth implementation method of the first aspect, the mass fraction of the second auxiliary agent in the working fluid is 0.01%-20%.

[0038] When the mass fraction of the second additive in the working fluid is greater than or equal to 0.01%, the emulsified working fluid can recover the liquid interface relatively quickly, that is, the working fluid can have a relatively stable liquid interface.

[0039] When the mass fraction of the second additive in the working fluid is less than or equal to 20%, the mass fraction of the first medium in the working fluid is relatively large, and the heat dissipation performance of the corresponding working fluid is better.

[0040] When the mass fraction of the second additive in the working fluid is between 0.01% and 20%, both the heat dissipation performance and the flow visualization performance of the working fluid can be taken into account.

[0041] In conjunction with the fourteenth implementation method of the first aspect, it also includes: a water-soluble dye, wherein the solubility of the water-soluble dye in the first medium is greater than the solubility of the water-soluble dye in the second medium.

[0042] In this implementation, the working medium includes a water-soluble dye. The solubility of the water-soluble dye in the first medium is greater than that in the second medium. The water-soluble dye can dissolve in the first medium, causing the first medium to develop color. The introduction of the water-soluble dye can create a large color contrast between the first and second media, resulting in a significant visualization effect of the working medium's flow.

[0043] In conjunction with the fifteenth implementation of the first aspect, it also includes: an oil-soluble dye, wherein the solubility of the oil-soluble dye in the second medium is greater than the solubility of the oil-soluble dye in the first medium.

[0044] In this implementation, the working medium includes an oil-soluble dye. The oil-soluble dye has a higher solubility in the second medium than in the first medium. The oil-soluble dye can dissolve in the second medium, allowing the second medium to develop color. The introduction of the oil-soluble dye enables the second medium to have a greater color contrast with the first medium, resulting in a significant flow visualization effect for the working medium.

[0045] It is worth noting that in implementations where the working medium contains both water-soluble and oil-soluble dyes, the oil-soluble dyes and water-soluble dyes should be selected to have different colors, so that the second medium has a large color contrast with the first medium. For example, a red water-soluble dye and a blue oil-soluble dye can be selected.

[0046] In conjunction with the sixteenth implementation of the first aspect, the first medium includes at least one of water and liquid metal.

[0047] In this implementation, the first medium includes: water ( At least one of the following: , liquid metal. Liquid metal has better heat dissipation performance. Using liquid metal as the primary medium allows the working fluid to achieve better heat dissipation performance, ensuring that the working fluid can achieve better heat dissipation performance.

[0048] In conjunction with the seventeenth implementation of the first aspect, the mass fraction of the first medium in the working fluid is greater than or equal to 50%.

[0049] In this implementation, the mass fraction of the first medium in the working fluid is greater than or equal to 50%, that is, the working fluid contains a large amount of the first medium (the first medium has better heat dissipation performance), ensuring that the working fluid can achieve better heat dissipation performance.

[0050] In conjunction with the eighteenth implementation of the first aspect, the conductivity of the first medium is less than or equal to 500 μs / cm.

[0051] In this implementation, the conductivity of the first medium is less than or equal to 500 μs / cm. The first medium has a low conductivity, and the working fluid containing the first medium has a low conductivity. When this working fluid is applied to an electronic device, it can have a small impact on the electromagnetic signals of the electronic device.

[0052] In conjunction with the nineteenth implementation method of the first aspect, the second medium includes at least one of hydrocarbons, heteroatom organic compounds, and fluorinated liquids.

[0053] In this implementation, the second medium includes at least one of hydrocarbons, heteroatom organic compounds, and fluorinated liquids. The second medium can form a liquid interface with the first medium, allowing the working fluid to move relative to the inner wall of the cavity during flow, thus creating a visual effect of fluid flow.

[0054] In conjunction with the twentieth implementation method of the first aspect, the mass fraction of the second medium in the working fluid is between 0.1% and 50%.

[0055] When the mass fraction of the second medium in the working fluid is greater than or equal to 0.1%, the size of the liquid interface formed between the second medium and the first medium is larger, and correspondingly, the working fluid exhibits a more significant flow visualization effect.

[0056] When the mass fraction of the second medium in the working fluid is less than or equal to 50%, the mass fraction of the first medium in the working fluid is relatively large, and the heat dissipation performance of the corresponding working fluid is better.

[0057] When the mass fraction of the second medium in the working fluid is between 0.1% and 50%, both the heat dissipation performance of the working fluid and its wetting performance on the inner wall of the cavity can be taken into account.

[0058] In conjunction with the twenty-first implementation method of the first aspect, the working fluid is applied in electronic equipment.

[0059] In conjunction with the twenty-second implementation method of the first aspect, the viscosity of the second medium is less than or equal to 100 MPa.

[0060] In this implementation, at 25°C, the viscosity of the second medium is less than or equal to 100 MPa. The lower viscosity of the second medium and the lower viscosity of the working fluid result in less resistance during flow, allowing the working fluid to transfer more heat per unit time.

[0061] The second aspect of this application discloses a liquid cooling module, comprising: the working fluid disclosed in the first aspect and a pump, wherein the pump is used to drive the working fluid to move such that the liquid interface of the working fluid moves relative to a cavity for containing the working fluid.

[0062] The liquid cooling module disclosed in this implementation may include: a pump and a working fluid. The pump is connected to the working fluid and is used to drive the working fluid to move. During the movement of the working fluid, the liquid interface formed by the first medium and the second medium will move relative to the inner wall of the cavity. During the movement of the working fluid, the liquid interface will move relative to the inner wall of the cavity, thereby achieving a significant flow visualization effect.

[0063] The third aspect of this application discloses an electronic device, comprising: a housing and a liquid cooling module disclosed in the second aspect; the liquid cooling module is embedded in the housing, and the housing covers at least a portion of the liquid cooling module, the transmittance of which is greater than or equal to a threshold.

[0064] In this implementation, the liquid cooling module may include a pump and a working fluid. The working fluid may include a first medium and a second medium. The pump, as the power source for the working fluid, drives its movement. During this movement, the liquid interface moves relative to the inner wall of the cavity, thereby achieving a significant flow visualization effect.

[0065] The liquid cooling module is embedded in the housing, and at least a portion of the housing covering the liquid cooling module has a visible light transmittance greater than or equal to a threshold, so that the working fluid flow visualization effect can be displayed through the housing in that area, that is, the electronic device can have a flow visualization effect.

[0066] In conjunction with the first implementation of the third aspect, the shell is provided with a groove, which forms a cavity for accommodating the working fluid.

[0067] In conjunction with the second implementation of the third aspect, the liquid-cooled module also includes: a liquid-cooled module having a cavity for containing the working fluid.

[0068] The fourth aspect of this application discloses an accessory suitable for electronic devices, an accessory body and a liquid cooling module disclosed in the second aspect, wherein the liquid cooling module is embedded in the accessory body; the accessory body covers at least a portion of the liquid cooling module and has a visible light transmittance greater than or equal to a threshold.

[0069] In this implementation, the liquid cooling module may include a pump and a working fluid. The working fluid may include a first medium and a second medium. The pump, as the power source for the working fluid, drives its movement. During this movement, the liquid interface moves relative to the inner wall of the cavity, thereby achieving a significant flow visualization effect.

[0070] The liquid cooling module is embedded in the accessory body. At least a portion of the accessory body covering the liquid cooling module has a visible light transmittance greater than or equal to a threshold, so that the working fluid flow visualization effect can be displayed through the accessory body in that area, that is, the accessory can have a flow visualization effect.

[0071] The fifth aspect of this application discloses a method for preparing a working fluid, comprising: measuring a first medium and a second medium; mixing the first medium and the second medium to obtain the working fluid disclosed in the first aspect, wherein the heat dissipation coefficient of the first medium is greater than that of the second medium, and a liquid interface exists between the first medium and the second medium in the working fluid.

[0072] The effects that can be achieved in the fifth aspect can be seen in the effects that can be achieved by any feasible implementation method in the first aspect. Attached Figure Description

[0073] Figure 1 A schematic diagram of an electronic device; Figure 2 This is an exploded view of the battery. Figure 3 This is a schematic diagram of the working fluid disclosed in a feasible embodiment (the working fluid is filled in the cavity). Figure 4 This is a schematic diagram of the working fluid hanging on the wall (the working fluid fills the cavity). Figure 5 A schematic diagram of the emulsified working fluid (the working fluid fills the cavity). Figure 6 A schematic diagram of a mobile phone disclosed as a feasible embodiment; Figure 7 A schematic diagram of a tablet computer disclosed in a feasible embodiment; Figure 8 A schematic diagram of a laptop computer disclosed in a feasible embodiment; Figure 9 A schematic diagram of a vehicle-mounted device disclosed in a feasible embodiment; Figure 10 A cross-sectional view of the flow display area disclosed in a feasible embodiment; Figure 11 A cross-sectional view of the flow display area disclosed in a feasible embodiment; Figure 12 A schematic diagram of a protective shell disclosed in a feasible embodiment; Figure 13 An assembly diagram of a wearable device and wristband disclosed in a feasible embodiment; Figure 14 An assembly diagram of a tablet computer and a protective case is disclosed as a feasible embodiment; Figure 15 This is an assembly diagram of a mobile phone and connectors disclosed as a feasible embodiment. Detailed Implementation

[0074] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0075] In this document, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0076] Furthermore, in this article, directional terms such as "upper" and "lower" are defined relative to the orientation of the structure as shown in the attached drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the structure.

[0077] First, the concepts involved in the embodiments of this application will be explained: Electrical conductivity (or electrical conductance) can be understood as a parameter used to describe the ease with which electric charge flows in a substance. Surface tension is a force that liquids, such as water, exert to minimize their surface area. The phenomenon of liquids clinging to walls is related to surface tension; the greater the surface tension, the more pronounced the clinging phenomenon.

[0078] Emulsification is a process in which a second medium is uniformly dispersed in a first medium as extremely small droplets.

[0079] A liquid interface refers to an interface formed by the contact of two or more immiscible or partially miscible liquid phases. In this patent, the area of ​​the liquid interface is at least ≥10μm2 and is visible to the naked eye. The technical effect of the liquid interface is that the working status of the heat dissipation module can be detected by observing the flow of the working fluid, and the temperature and heat dissipation performance of the device can be judged.

[0080] Demulsification is the process by which the second medium transforms from a state of small droplets into a continuous phase. The second medium, existing as a continuous phase, can have a liquid interface with the first medium.

[0081] Demulsification efficiency is the ratio of mass or volume to time, where time can be understood as the time required for the second medium to transform from a small droplet state into a continuous phase state.

[0082] Visible light can be understood as light waves with wavelengths between 380nm and 760nm.

[0083] Visible light transmittance is the ratio of the radiant energy projected onto and transmitted through an object to the total radiant energy projected onto the object.

[0084] The hydrophilic-lipophilic balance (HLB) can be understood as the combined affinity of the hydrophilic and hydrophobic groups in a surfactant (auxiliary agent) molecule for oil or water.

[0085] A hydrophilic group, also known as a polar group, is a group of atoms that are soluble in water or readily affinity for water.

[0086] A hydrophobic group (or oelophilic group) is also called a nonpolar group. It has no affinity for water and is insoluble or has very low solubility in water.

[0087] Viscosity can be understood as the resistance exhibited by a first medium to flow. Specifically, in the embodiments of this application, the lower the viscosity of the first medium, the less resistance it experiences during flow, the more heat it transfers per unit time, and the more significant its temperature control function. The viscosity of the first medium is affected by temperature. Unless otherwise specified, the viscosity mentioned in the embodiments of this application can be understood as the viscosity of the first medium at 25°C.

[0088] Mass fraction can be understood as the mass ratio of the components (first medium, second medium, first additive, second additive) to the working fluid.

[0089] The following describes the solutions disclosed in the embodiments of this application: The electronic devices involved in the embodiments of this application may include, but are not limited to, mobile phones, tablets, laptops, wearable devices, in-vehicle devices, and other electronic products.

[0090] Please see Figure 1 As can be seen, the electronic device includes: a housing 20 and electronic functional components (not shown in the figure) located within the housing 20. In this embodiment, the electronic device can be a folding device or a candybar device.

[0091] For example, please refer to Figure 1 To further illustrate the housing using a foldable phone as an example, the housing 20 may include a cavity for accommodating electronic functional components (not shown in the figure). The housing 20 of the foldable phone may include a first non-folding portion 21 and a second non-folding portion 22. The first non-folding portion 21 and the second non-folding portion 22 are connected by a folding portion 23. The second non-folding portion 22 can be folded toward the first non-folding portion 21 via the folding portion 23. The second non-folding portion 22 unfolds with the first non-folding portion 21 via the folding portion 23.

[0092] The electronic functional components of electronic device 1 include, but are not limited to: processor, internal memory, charging management module, power management module, battery, antenna, communication module, camera, audio module, speaker, receiver, microphone, sensor module, motor, and indicators. Electronic device 1 may have more or fewer electronic functional components than described above. These various electronic functional components can be implemented in hardware, software, or a combination of hardware and software, including one or more signal processing and / or application-specific integrated circuits (ASICs).

[0093] Electronic functional components release heat when they are in operation. When the internal temperature of electronic device 1 is too high, it will affect the working efficiency of electronic functional components and the service life of electronic device 1. Therefore, a liquid cooling module 10 is required to control the temperature rise of electronic functional components.

[0094] Based on the above considerations, in some feasible implementations, the liquid cooling module 10 is located between the housing 20 and the electronic functional components to achieve temperature control of the electronic functional components. For examples, please refer to [link to relevant documentation]. Figure 1 As can be seen, the liquid cooling module 10 is located on the side of the housing 20 adjacent to the electronic functional components. The liquid cooling module 10 can control the temperature of the electronic functional components.

[0095] In some feasible implementations, the liquid cooling module 10 can be integrated as part of the electronic functional component package, thereby enabling temperature control of the electronic functional component. For an example, please refer to... Figure 2 , Figure 2The exploded view of the battery shows that the battery 30 may include a protective plate 31, a tray 32, a battery cell 33, and a liquid cooling module 10 stacked sequentially. The liquid cooling module 10, as part of the battery, can control the temperature of the battery.

[0096] The temperature control function of the liquid cooling module 10 is explained below: Please continue reading. Figure 1 The liquid cooling module 10 may include: a liquid cooling module 100, a pump 200, and a working fluid (not shown in the figure). The working fluid fills the cavity of the liquid cooling module 100. The pump 200 is connected to the cavity of the liquid cooling module 100 and can serve as a power source for the working fluid within the liquid cooling module 100, providing power for the flow of the working fluid.

[0097] During the flow process, the working fluid can act as a heat transfer carrier, carrying heat away from the electronic functional components, thereby achieving temperature control of the electronic functional components.

[0098] In this embodiment, the cavity of the liquid-cooled module 100 provides a flow path / place for the flow of the working fluid. Therefore, in this embodiment, the cavity of the liquid-cooled module 100 can be referred to as a flow channel.

[0099] This application does not specifically limit the type of pump 200. In some feasible implementations, pump 200 can be a miniature piezoelectric hydraulic pump with an amplitude ≤50um. It is characterized by being ultra-thin, small in size, simple in structure, high in pressure and low in flow, free from electromagnetic interference, and low in operating noise. It can realize precise fluid transport and control, and is especially suitable for electronic devices such as mobile phones, watches, and accessories.

[0100] Some related technologies visualize the flow of working fluids, creating futuristic flow display areas. These flow display areas can serve to identify devices or enhance the aesthetics of the casing, thereby improving the user experience of electronic devices.

[0101] The current method for visualizing the flow of the working fluid in the liquid-cooled module 10 is as follows: a transparent liquid-cooled module 100 is paired with a working fluid for flow visualization. That is, the working fluid for flow visualization is set in the transparent liquid-cooled module 100, so that the liquid-cooled module 10 can achieve the flow visualization function.

[0102] The working fluids disclosed in the related technologies that allow for visualization of the flow state include water and dyes. Because the presence of dyes causes the working fluid to develop color, the flow process of the working fluid can be visualized.

[0103] Colored working fluids can create a visual flow effect in larger liquid-cooled modules 10. However, liquid-cooled modules 10 used in electronic devices are relatively small (typically, the cavity size of a liquid-cooled module 10 is on the order of microliters), and the flow visualization effect of the working fluids disclosed in related technologies is poor.

[0104] To improve the visualization of working fluid flow, this application discloses a working fluid. Please refer to [link / reference]. Figure 3 The working medium 300 may include a first medium 301 and a second medium 302. A liquid interface A exists between the second medium 302 and the first medium 301. The heat dissipation coefficient of the first medium 301 is greater than that of the second medium 302, resulting in better heat dissipation performance for the working medium containing the first medium 301. The liquid interface A between the second medium 302 and the first medium 301 moves relative to the inner wall of the cavity (B used to load the working medium) during the movement of the working medium 300, thus allowing the movement of the working medium to be visualized as a flow.

[0105] The components of the working fluid disclosed in the embodiments of this application will be further described below: The working fluid disclosed in this application includes a first medium. The first medium has superior heat dissipation performance, ensuring that the working fluid can achieve superior heat dissipation performance; furthermore, the first medium needs to form a liquid interface with the second medium to ensure that the working fluid can achieve a visible flow effect.

[0106] This application does not specifically limit the type of medium included in the first medium. Any medium that has good heat dissipation performance and can form a liquid interface with the second medium can be used as the first medium in this application embodiment.

[0107] For example, in some feasible implementations, the first medium may include: water ( ), liquid metal, etc.

[0108] Liquid metal has better heat dissipation performance. Using liquid metal as the primary medium allows the working fluid to achieve better heat dissipation performance, ensuring that the working fluid can achieve better heat dissipation performance.

[0109] As one feasible implementation method, the mass fraction of the first medium in the working fluid is greater than or equal to 50%. For example, the mass fraction of the first medium in the working fluid may include: 55%, 90%, 95%, etc.

[0110] In this implementation, the mass fraction of the first medium in the working fluid is greater than or equal to 50%, that is, the working fluid contains a large amount of the first medium (the first medium has better heat dissipation performance), which ensures that the working fluid can achieve better heat dissipation performance. When the working fluid changes its temperature by a unit, it absorbs more heat, and the working fluid can achieve better temperature control function.

[0111] To reduce the influence of the working fluid on electromagnetic signals in electronic devices, as a feasible implementation, the conductivity of the first medium is less than or equal to 500 μs / cm. For example, the conductivity of the first medium can be 50 μs / cm, 10 μs / cm, 0.07 μs / cm, etc.

[0112] In this implementation, the conductivity of the first medium is less than or equal to 500 μs / cm. The first medium has a low conductivity, and the working fluid containing the first medium has a low conductivity. When this working fluid is applied to an electronic device, it can have a small impact on the electromagnetic signals of the electronic device.

[0113] In the case where the first medium contains water, there may be problems with the injection of the working fluid, causing it to adhere to the inner wall of the cavity. Specifically, during the injection process into the inner wall of the cavity, the water in the working fluid has a high surface tension, making it difficult for the working fluid to wet the inner wall, resulting in the working fluid adhering to the inner wall, i.e., the phenomenon of wall adhesion. For details, please refer to... Figure 4 As can be seen, the working fluid 300 is attached to the inner wall of cavity B.

[0114] To address the infusion problem of the working medium, as a feasible solution, the working medium may further include a first additive. The first additive may include hydrophilic and hydrophobic groups (which may also be referred to as lipophilic groups in this embodiment) to reduce the surface tension of the first medium, thereby improving the wetting performance of the working medium.

[0115] In this embodiment, a hydrophilic group can be understood as a group (substituent) that is soluble in water or readily affinity for water. Exemplary examples include, but are not limited to: hydroxyl (-OH), carbonyl (-C=O), and carboxyl (-COO) groups. - )wait.

[0116] In this application embodiment, a hydrophobic group can be understood as a group (substituent) that has no affinity for water, is insoluble in water, or has very low solubility in water. For example, hydrophobic groups may include, but are not limited to: alkyl groups, benzene rings, groups containing fluorocarbon bonds (-CF), etc.

[0117] The first additive involved in the embodiments of this application may include: a hydrophilic group and a hydrophobic group. The hydrophilic group of the first additive can contact water, and the hydrophobic group of the first additive is oriented away from the water, that is, the hydrophobic group encapsulates the water. During the injection into the inner wall of the cavity, the hydrophobic group contacts the inner wall of the cavity. The hydrophobic group has good wetting performance of the cavity, thereby improving the wetting of the working fluid into the inner wall of the cavity and alleviating the problem of the working fluid adhering to the wall.

[0118] Considering that the more the first additive is added, the better the wetting performance of the working fluid on the inner wall of the cavity, and the less working fluid adheres to the wall.

[0119] As a feasible approach to make the working fluid more easily wet the inner wall of the cavity, the mass fraction of the first additive in the working fluid can be greater than or equal to 0.01%.

[0120] Considering that the more the first additive is added, the lower the proportion of the first medium in the working fluid, and the worse the heat dissipation performance of the working fluid will be.

[0121] In order to obtain a working fluid with better heat dissipation performance, as a feasible approach, the mass fraction of the first additive in the working fluid can be less than or equal to 20%.

[0122] To balance the heat dissipation performance of the working fluid and the wetting performance of the inner wall of the cavity, as a feasible approach, the mass fraction of the first additive in the working fluid can be between 0.01% and 20%. Alternatively, the mass fraction of the first additive in the working fluid can be between 0.15% and 5%.

[0123] This application does not specifically limit the type of the first additive in the embodiments. Any additive that can reduce the surface tension of the first medium can be used as the first additive in the embodiments of this application.

[0124] For example, the first auxiliary agent may include: fluorocarbon surfactants, polyoxyethylene ether nonionic surfactants, Gemini surfactants, etc.

[0125] Fluorocarbon surfactants may include at least one of the following: perfluorohexyl ethyl sulfonate, perfluorohexyl ethyl phosphate, and perfluorohexyl ethanol polyvinyl ether.

[0126] As a feasible approach, the molecular structure of fluorocarbon surfactants may include: .

[0127] exist In this context, groups containing carbon-fluorine bonds (CF) can act as hydrophobic groups, and aldehyde groups ( As a hydrophilic group, it enables the molecular structure to contain Fluorocarbon surfactants can reduce the surface tension of the first medium, thus alleviating the problem of the working fluid adhering to the wall.

[0128] Considering that the number of hydrophobic / hydrophilic groups in fluorocarbon surfactants is related to their solubility in the first / second medium, specifically, the more hydrophobic groups a fluorocarbon surfactant has, the greater its solubility in the second medium; conversely, the more hydrophilic groups a fluorocarbon surfactant has, the greater its solubility in the first medium.

[0129] To enable fluorocarbon surfactants to exist on the surface of the first medium, and thus allow them to reduce the surface tension of the first medium, as a feasible approach, In the equation, x=6, and y is between 5 and 14.

[0130] This implementation method is publicly disclosed. In (fluorocarbon surfactants / first auxiliary agent), x=6, y is between 5 and 14. It can exist on the surface of the first medium (with the hydrophilic group facing the first medium and the hydrophobic group facing away from the first medium), so that the hydrophobic group comes into contact with the inner wall of the cavity during the flow, thereby alleviating the problem of the first medium adhering to the wall.

[0131] The thermal stability of the first auxiliary agent is related to its relative molecular mass. Specifically, the larger the relative molecular mass of the first auxiliary agent, the better the thermal stability of the fluorocarbon surfactant. Conversely, the smaller the relative molecular mass of the first auxiliary agent, the worse the thermal stability of the fluorocarbon surfactant.

[0132] To obtain a working fluid with better stability, as a feasible approach, In this case, y can be greater than or equal to 5, so that It has better thermal stability, thus resulting in a working fluid with better thermal stability.

[0133] The rigidity of the first auxiliary agent is related to its molecular chain length. Specifically, the shorter the molecular chain of the first auxiliary agent, the stronger its rigidity. Conversely, the longer the molecular chain of the first auxiliary agent, the weaker its rigidity.

[0134] As a feasible way to achieve this, In this case, y can be less than or equal to 14, so that... It has a shorter molecular chain, thus ensuring It possesses considerable rigidity. During the flow process, It can quickly reach the space between the first medium and the inner wall of the cavity, thereby reducing the surface tension of the first medium and inhibiting the working fluid from adhering to the wall.

[0135] As a feasible approach, the molecular structural formulas of polyoxyethylene ether nonionic surfactants include: , etc. Wherein, R is a hydrophobic group, or hydrogen (H), and the hydrophilic group may include, but is not limited to: alkyl, cycloalkyl, aromatic groups, etc.

[0136] exist and In this context, R can act as a hydrophobic group, and the ether bond (-O-) can act as a hydrophilic group, resulting in a molecular structure containing... , The polyoxyethylene ether nonionic surface agent (first additive) can reduce the surface tension of the first medium and alleviate the problem of the working fluid adhering to the wall.

[0137] Considering the relationship between the thermal stability and the relative molecular mass of the first additive, as a feasible implementation method, , When R is an alkyl group, the number of carbon atoms in the main chain of R can be greater than or equal to 1; when R is a cycloalkyl group, the number of carbon atoms in the main chain of R can be greater than or equal to 3; when R is an aromatic group, the number of carbon atoms in the main chain of R can be greater than or equal to 4; so that the first auxiliary agent has better thermal stability, thereby obtaining a working fluid with better thermal stability.

[0138] Considering that the rigidity of the first auxiliary agent is related to its molecular chain length, as a feasible approach, , When R is an alkyl group, the number of carbon atoms in the main chain of R can be less than or equal to 15; when R is a cycloalkyl group, the number of carbon atoms in the main chain of R can be less than or equal to 12; when R is an aromatic group, the number of carbon atoms in the main chain of R can be less than or equal to 12, thus ensuring that the first auxiliary agent has greater rigidity. During the flow process, the first auxiliary agent can quickly reach the space between the first medium and the inner wall of the cavity, thereby reducing the surface tension of the first medium and inhibiting the adhesion of the first medium to the wall.

[0139] In some feasible embodiments, and In this case, n can be between 2 and 12. It is optional; n can be between 2 and 12.

[0140] In some feasible embodiments, the molecular structure of the gemini surfactant can be: , , , , , , At least one of them is a hydrophilic group, and , , , , , At least one of them is a hydrophobic group.

[0141] The hydrophobic groups contained therein can include: alkyl, alkoxy, aromatic, fluoroalkyl, etc. The hydrophilic groups contained therein may include: , , , , wait.

[0142] Optional, in In this context, n can be 1-5. In this context, n can be between 1 and 5.

[0143] The disclosed gemini surfactant molecule includes a hydrophilic group and a hydrophobic group. In the working medium, the hydrophilic group of the gemini surfactant is soluble in water, so that the hydrophobic group of the gemini surfactant faces away from the water. During flow, the hydrophobic group exists between the first medium and the inner wall of the cavity, thereby reducing the surface tension of the first medium and inhibiting the adhesion of the first medium to the wall.

[0144] In addition, the twin surfactant disclosed in this implementation can reach the space between the first medium and the inner wall of the cavity more quickly, improving the wetting performance of the first medium on the inner wall of the cavity, thereby alleviating the problem of the first medium adhering to the wall.

[0145] As a feasible way to achieve this, and and and All include: hydrophobic groups; and All include: hydrophilic groups.

[0146] For example, the molecular structure of a Gemini surfactant may include: , wait.

[0147] In the gemini surfactant molecular structure disclosed in this implementation, , , , Includes: hydrophobic groups; , Including hydrophilic groups, which gives the Gemini surfactant greater rigidity. During the flow process, the Gemini surfactant disclosed in this implementation can quickly reach the space between the first medium and the inner wall of the cavity, thereby reducing the surface tension of the first medium and inhibiting the adhesion of the first medium to the wall.

[0148] The working medium disclosed in this application embodiment further includes a second medium. The second medium is used to form a liquid interface with the first medium, so that the working medium can move relative to the inner wall of the cavity during the flow process, thereby making the flow of the working medium visible.

[0149] Considering that the more the second medium is added, the larger the size of the liquid interface formed between the second medium and the first medium, the more significant the visual effect of the working fluid flow will be.

[0150] To obtain a working fluid with significant flow visualization effects, as a feasible approach, the mass fraction of the second medium in the working fluid can be greater than or equal to 0.1%.

[0151] Considering that the more the first additive is added, the lower the proportion of the first medium in the working fluid, and the worse the heat dissipation performance of the working fluid will be.

[0152] In order to obtain a working fluid with better heat dissipation performance, as a feasible approach, the mass fraction of the second medium in the working fluid can be less than or equal to 50%.

[0153] To balance the heat dissipation performance and flow visualization performance of the working fluid, as a feasible implementation method, the mass fraction of the second medium in the working fluid can be 0.1%-50%; alternatively, the mass fraction of the second medium in the working fluid can be 1%-20%; alternatively, the mass fraction of the second medium in the working fluid can be 5%-10%.

[0154] Considering the impact of viscosity on the heat dissipation performance of the working fluid, as a feasible implementation method, the viscosity of the second medium is less than or equal to 100 mPa·s. For example, the viscosity of the first medium can be 50 mPa·s, 10 mPa·s, etc.

[0155] In this implementation, at 25°C, the viscosity of the second medium is less than or equal to 100 MPa. The lower viscosity of the second medium and the lower viscosity of the working fluid result in less resistance during flow, allowing the working fluid to transfer more heat per unit time.

[0156] It is worth noting that when the working fluid is at rest, a liquid interface exists between the first and second media. When the working fluid is in motion, emulsification may occur between the first and second media, meaning that the second media may disperse in the first media as small droplets. For details, please refer to... Figure 5As can be seen, after the first and second media emulsify, the second medium disperses in the form of small droplets to form an emulsion 400, and the liquid interface between the first and second media is disrupted. The working fluid loses its flow visualization function.

[0157] To obtain a working fluid with stable flow visualization capabilities, as a feasible implementation method, the working fluid may further include a second additive, wherein the second additive is used to disrupt the emulsion. The emulsion can be understood as a solution formed by the second medium dispersing small droplets within the first medium.

[0158] The specific process of breaking down the milk can be as follows: Second adjuvant and The bonding ability of the first medium is stronger than that of the second medium. The binding ability. In the second medium, it is dispersed in the form of small droplets. When an emulsion forms inside, It preferentially combines with the second auxiliary agent, resulting in a reduction in the thickness of the hydration layer on the surface of the small droplets. The second medium existing in the form of small droplets tends to aggregate to form a second medium existing in the form of a continuous phase (there is a liquid interface between the second medium existing in the form of a continuous phase and the first medium), thereby restoring the liquid interface between the first medium and the second medium, thus achieving the demulsification effect.

[0159] The working medium disclosed in this implementation includes a second additive, which can disrupt the emulsion formed by the first medium and the second medium, thereby restoring the liquid interface between the first medium and the second medium, so that the working medium has a stable liquid interface and can have a stable flow visualization effect.

[0160] This application does not specifically limit the second additive. Any additive that can disrupt the emulsion formed by the first medium and the second medium can be used as the second additive in this application.

[0161] For example, the second adjuvant may include at least one of the following: organic alcohols, organic ketones, amines, organic acids, lipids, ethers, aromatics, and silicone oils.

[0162] Organic alcohols contain hydrophilic hydroxyl groups (-OH), which allows them to react with... The bonding ability of the first medium is stronger than that of the second medium. Due to their binding ability, organic alcohol compounds can be used as second auxiliaries in the embodiments of this application.

[0163] For example, the molecular structure of an organic alcohol compound may include: .

[0164] The thermal stability of the working fluid is related to the relative molecular mass of the second additive. Specifically, the larger the relative molecular mass of the second additive, the better its thermal stability, and correspondingly, the better the thermal stability of the working fluid containing the second additive. Thermal stability can include, but is not limited to, thermal stability.

[0165] To obtain a working fluid with better thermal stability, as a feasible approach, In the second additive, n is greater than or equal to 1, so that the second additive has high thermal stability and the working fluid containing the second additive has better thermal stability.

[0166] Considering that the rigidity of the second auxiliary agent is related to its relative molecular mass, specifically, the smaller the relative molecular mass of the second auxiliary agent, the better its rigidity. When the first and second media emulsify, the second auxiliary agent can quickly reach the space between the second and first media in the form of small droplets, achieving a demulsification effect (i.e., the second auxiliary agent can have a faster demulsification efficiency), allowing the working fluid to quickly restore the liquid interface.

[0167] To obtain a working fluid that can quickly restore the liquid interface after emulsification, as a feasible approach, In the second auxiliary agent, n is less than or equal to 12, so that the second auxiliary agent has greater rigidity, so that the working fluid containing the second auxiliary agent can quickly recover the liquid interface after emulsification, that is, the working fluid has a stable liquid interface.

[0168] As a feasible way to achieve this, The value of n can be between 1 and 12, so that the working fluid can have both high thermal stability and a stable liquid interface.

[0169] Considering that the polarity of the second adjuvant is related to the number of hydroxyl groups in the organic alcohol compound, specifically, the more hydroxyl groups in the organic alcohol compound, the greater its polarity and the greater its solubility in the first medium. Conversely, the fewer hydroxyl groups in the organic alcohol compound, the lower its polarity and the greater its solubility in the second medium.

[0170] To allow organic alcohol compounds to exist between the first and second media in order to better perform their demulsification function, as a feasible approach, The value of m can be 1-4.

[0171] For example, the molecular structure of an organic alcohol compound may include: Ar can include cyclic groups, which can include cycloalkyl groups, aromatic rings, etc.

[0172] As one feasible approach, cycloalkyl groups may include: Cycloalkyl groups, for example, may include: , , .

[0173] An aromatic ring can be understood as a group containing a benzene ring. As a feasible approach, an aromatic ring may include: The aromatic ring, for example, may include: , , wait.

[0174] In some feasible implementations, organic alcohols may include polyethylene glycol.

[0175] In the embodiments of this application, organic ketone compounds can be understood as organic compounds including hydrophilic carbonyl (-C=O) groups, and organic ketone compounds can be used as second auxiliaries in the embodiments of this application.

[0176] For example, the molecular structure of organic ketone compounds may include: .in, It can include hydrophobic groups such as alkyl, cycloalkyl, and aromatic groups.

[0177] Among some feasible implementation methods, middle It can include: alkyl, cycloalkyl, At least one of the aromatic groups, so that Having suitable polarity, it can exist extensively between the first and second media, thereby achieving the function of demulsification. In this implementation, the working fluid can also maintain high thermal stability and a stable liquid interface.

[0178] As a feasible approach, the second auxiliary agent may include amine compounds. Amine compounds include hydrophilic amino groups (…). Amine compounds can be used as second auxiliaries in the embodiments of this application.

[0179] For example, the molecular structure of amine compounds may include: , , At least one of them.

[0180] Among some feasible implementation methods, , , In the middle, R, , It can include: alkyl, cycloalkyl, At least one of the aromatic groups. So that... , , Having suitable polarity, it can exist extensively between the first and second media, thereby achieving the function of demulsification. In this implementation, the working fluid can also maintain high thermal stability and a stable liquid interface.

[0181] In the embodiments of this application, ether compounds include hydrophilic ether bonds ( Organic compounds, such as ether compounds, can be used as second auxiliaries in the embodiments of this application.

[0182] For example, the molecular structure of an ether compound may include: .

[0183] Among some feasible implementation methods, middle, It can include: alkyl, cycloalkyl, At least one of the aromatic groups. So that... Having suitable polarity, it can exist extensively between the first and second media, thereby achieving the function of demulsification. In this implementation, the working fluid can also maintain high thermal stability and a stable liquid interface.

[0184] In the embodiments of this application, lipid compounds can be understood to include hydrophilic ester groups ( Organic compounds, lipid compounds, can be used as second auxiliaries in the embodiments of this application.

[0185] For example, the molecular structure of lipid compounds may include: .

[0186] Among some feasible implementation methods, middle, It can include: alkyl, cycloalkyl, At least one of the aromatic groups. So that... Having suitable polarity, it can exist extensively between the first and second media, thereby achieving the function of demulsification. In this implementation, the working fluid can also maintain high thermal stability and a stable liquid interface.

[0187] In the embodiments of this application, organic acid compounds can be understood to include hydrophilic carboxyl groups ( Organic compounds, including organic acids, can be used as second auxiliaries in the embodiments of this application.

[0188] For example, the molecular structural formula of an organic acid compound may include: .

[0189] Among some feasible implementation methods, In this case, n can be between 1 and 12, such that... Having suitable polarity, it can exist extensively between the first and second media, thereby achieving the function of demulsification. In this implementation, the working fluid can also maintain high thermal stability and a stable liquid interface.

[0190] In this application, heterocyclic compounds can be understood as organic compounds containing heterocyclic structures in their molecules. In addition to carbon atoms, the atoms constituting the rings also contain at least one heteroatom (e.g., N, O, etc.). The heteroatom can act as a hydrophilic group, allowing lipid compounds to be used as a second auxiliary agent in this application.

[0191] For example, heterocyclic compounds may include at least one of the following: pyridine, furan, thiophene, pyrrole, piperidine, tetrahydrofuran, thiazole, imidazole, pyrazole, quinoline, isoquinoline, indole, and purine.

[0192] As a feasible implementation method, the second auxiliary agent may include: an organic salt, which may include: organic anions and cations, and the cations may include: ammonium ions (…). (or metal ions)

[0193] Both organic anions and cations possess strong hydrophilic properties. This allows organic anions to react with... Forming hydrated anions, cations can react with... It forms a hydrated cation. That is... It tends to bind with cations / organic anions.

[0194] The second medium is dispersed in the form of small droplets. When an emulsion forms inside, Preferentially binding with cations and organic anions leads to a reduction in the thickness of the hydration layer on the surface of small droplets. Small droplets tend to aggregate to form a continuous second medium, thereby restoring the liquid interface between the first and second media.

[0195] For example, organic salts may include tetradecyltrimethylammonium chloride, dialcyldimethylammonium chloride, etc.

[0196] As one feasible implementation method, the second additive may include: organosilicone oil. Organosilicone oil is a class of organic compounds containing dimethyl groups. Dimethyl groups can act as hydrophobic groups, allowing organosilicone oil to be used as a second additive in the embodiments of this application.

[0197] In some feasible implementation methods, the molecular structural formula of organosilicon oil (secondary additive) includes: R is a hydrophobic group or hydrogen. The hydrophobic group may include: methyl, methoxy, ethyl, ethoxy, propyl, butyl, pentyl, hexyl, heptyl, octyl, phenyl, hydroxyl, vinyl, etc., and the side chain of R may preferably be a C3-C18 alkyl substituent.

[0198] In this implementation, It contains hydrophilic silicon-oxygen bonds (-Si-O), and R includes H, methyl, methoxy, ethyl, ethoxy, propyl, butyl, pentyl, hexyl, heptyl, octyl, phenyl, hydroxyl, vinyl, etc., making The binding affinity between the first medium and the second medium is stronger than that between the second medium and the first medium. After emulsification of the first and second media, the first medium preferentially binds with the second medium. The combination leads to a reduction in the thickness of the hydration layer on the surface of the small droplets. The second medium, existing in the form of small droplets, tends to aggregate to form a second medium existing in the form of a continuous phase, thereby restoring the liquid interface between the first medium and the second medium, thus achieving the effect of demulsification.

[0199] As a feasible way to achieve this, In the second additive, n is greater than or equal to 0, so that the second additive has high thermal stability and the working fluid containing the second additive has better thermal stability.

[0200] Considering that the rigidity of the second auxiliary agent is related to its relative molecular mass, as a feasible approach to obtain a working fluid that can quickly restore the liquid interface after emulsification, In the second auxiliary agent, n is less than or equal to 100, so that the second auxiliary agent has greater rigidity, so that the working fluid containing the second auxiliary agent can quickly recover the liquid interface after emulsification, that is, the working fluid has a stable liquid interface.

[0201] As a feasible way to achieve this, The value of n can be 0-100, which is optional. n can also be 10-40, so that the working fluid can have both high thermal stability and a stable liquid interface.

[0202] It is worth noting that the embodiments of this application are merely exemplary disclosures of several second additives, and the aforementioned second additives do not constitute specific limitations. Any additive that can disrupt the formation of an emulsion between the first and second media can be used as a second additive in the embodiments of this application. For example, the second additive may also include: polyethylene oxide-propylene oxide copolymer, etc.

[0203] Considering that the more the second additive is added, the faster the second additive can reach the second medium and the first medium in the form of small droplets when the first medium and the second medium emulsify, the demulsification effect can be achieved (that is, the second additive can have a faster demulsification efficiency), so that the working medium can restore the liquid interface more quickly.

[0204] In order to obtain a working fluid with stable flow visualization effect, as a feasible implementation method, the mass fraction of the second additive in the working fluid can be greater than or equal to 0.01%.

[0205] Considering that the more the second additive is added, the lower the proportion of the first medium in the working fluid, and the worse the heat dissipation performance of the working fluid will be.

[0206] In order to obtain a working fluid with better heat dissipation performance, as a feasible approach, the mass fraction of the second additive in the working fluid can be less than or equal to 20%.

[0207] In order to balance the heat dissipation performance and flow visualization performance of the working fluid, as a feasible approach, the mass fraction of the second additive in the working fluid can be 0.01%-20%; alternatively, the mass fraction of the second medium in the working fluid can be 0.1%-5%.

[0208] This concludes the description of the second adjuvant. The description of the second medium will now proceed.

[0209] This application does not specifically limit the second medium. Any medium that can form a liquid interface with the first medium can be used as the second medium in this application.

[0210] For example, the second medium may include: hydrocarbons, heterocyclic compounds, fluorinated liquids, quicksand oils, silicone oils, etc.

[0211] This application does not specify the quantity of the second medium contained in the working fluid. For example, the quantity of the second medium contained in the working fluid can be 1, 2, 3, etc.

[0212] This application does not specifically limit the solubility of the second media among themselves.

[0213] In some feasible implementations, at least two second media are mutually soluble.

[0214] For example, the second medium may include hydrocarbons and heteroatom compounds, wherein the hydrocarbons and heteroatom compounds are miscible and can form a homogeneous phase.

[0215] For example, the second medium may include hydrocarbons, heteroatom compounds, and liquid sand oil. Hydrocarbons and heteroatom compounds are miscible to form a mixed organic liquid. A liquid interface is formed between the liquid sand oil and the mixed organic liquid (which is immiscible).

[0216] In some feasible implementations, a liquid interface exists between any two second media.

[0217] For example, the second medium may include a fluorinated liquid and a liquid sander. The fluorinated liquid and the liquid sander can form a liquid interface.

[0218] It is worth noting that the embodiments in this application are merely illustrative descriptions of several solubility scenarios between the second media, and the above examples do not constitute specific limitations.

[0219] In this embodiment, hydrocarbons can be understood as organic compounds composed of carbon (C) and hydrogen (H) elements. Fluorohydrocarbons have low solubility in the first medium, and the fluorinated liquid can form a liquid interface with the first medium.

[0220] For example, the molecular structure of a hydrocarbon may include: .

[0221] Considering that the stability of the liquid interface is related to the solubility of the second medium in the first medium, specifically, the larger the relative molecular mass of the second medium, the lower its solubility in the first medium, the more stable the liquid interface between the second and first media, and the more stable the visualization of the working fluid flow.

[0222] To obtain a working fluid with stable flow visualization, as a feasible implementation method, In the second medium, n can be greater than or equal to 5, so that the solubility of the second medium in the first medium is relatively small, thereby ensuring a stable liquid interface between the first and second media. This ensures that the working fluid can achieve a stable flow visualization effect.

[0223] Considering that the stability of the liquid interface is related to the thermal stability of the second medium, specifically, the larger the relative molecular mass of the second medium, the higher its thermal stability. The better the thermal stability of the second medium, the more stable the liquid interface between the second and first media, and the more stable the visualization of the working fluid flow.

[0224] In this implementation, In the second medium, n can be greater than or equal to 5. The second medium has high thermal stability and can form a stable liquid interface with the first medium, ensuring that the working fluid can have a stable flow visualization effect.

[0225] Considering that the heat dissipation performance of the working fluid is related to the viscosity of the second medium, specifically, the smaller the relative molecular mass of the second medium and the lower its viscosity, the less resistance the working fluid experiences during flow, the lower the heat transferred per unit time, and the better the heat dissipation performance of the working fluid.

[0226] To further improve the heat dissipation performance of the working fluid, as a feasible approach, In this context, n can be less than or equal to 11.

[0227] In this implementation, When n is less than or equal to 11, the second medium has a low viscosity, ensuring that the resistance encountered during the flow of the working fluid is small, and the working fluid transfers more heat per unit time, thus achieving better heat dissipation performance.

[0228] To balance the visual effect of stable working fluid flow and good heat dissipation performance, as a feasible approach, In this case, n can be between 5 and 11.

[0229] For example, the molecular structure of a hydrocarbon may include: , , , , , , , , wait.

[0230] In this implementation, the hydrocarbon (second medium) contains a benzene ring ( The benzene ring has high rigidity, which in turn makes the hydrocarbons also have high rigidity. When the hydrocarbons emulsify with the first medium, due to the high rigidity of the hydrocarbons, under the action of the first additive, the hydrocarbons existing in the form of small droplets can quickly break away from the binding of the first medium and aggregate into a continuous phase of hydrocarbons, thus restoring the visibility of the working medium.

[0231] To obtain a working fluid with stable flow visualization, as a feasible implementation method, In this case, n can be greater than or equal to 5; In this case, n can be greater than or equal to 0. In this case, n can be greater than or equal to 0.

[0232] To obtain a working fluid with better heat dissipation performance, as a feasible approach, In this case, n can be less than or equal to 11; In this case, n can be less than or equal to 5; In this case, n can be less than or equal to 5.

[0233] To balance the heat dissipation performance and flow visualization performance of the working fluid, some feasible implementation methods include... n can be between 5 and 11. n can be between 0 and 5. n can be between 5 and 11.

[0234] In this embodiment, a heteroatom compound can be understood as a compound containing heteroatoms such as oxygen (O), sulfur (S), and nitrogen (N) in addition to carbon and hydrogen atoms. The heteroatom compound can form a liquid interface with the first medium.

[0235] For example, the molecular structure of a heteroatom compound may include: , wait.

[0236] In this implementation, the molecular structure of the heteroatom compound (second medium) includes a benzene ring. The benzene ring has high rigidity, which in turn makes the heteroatom compound have high rigidity. When the heteroatom compound emulsifies with the first medium, due to the high rigidity of the heteroatom compound, under the action of the second auxiliary agent, the heteroatom compound can quickly break away from the binding of the first medium and aggregate with each other to form the second medium, so that the working fluid can restore the visualization effect.

[0237] In this embodiment, the fluorinated liquid can be understood as an organic compound whose molecular structure contains a fluorocarbon bond (CF). The fluorocarbon bond (CF) forms a hydrophobic group, which results in the fluorinated liquid having low solubility in the first medium, allowing it to form a liquid interface with the first medium. For example, the fluorinated liquid may include at least one of fluoroalkanes and fluoroethers.

[0238] Considering the relationship between the stability of the liquid interface and the solubility of the second medium in the first medium, as a feasible approach to obtain a working fluid with stable flow visualization, the number of carbon atoms in the main chain of the fluorinated liquid can be greater than or equal to 5. This reduces the solubility of the fluorinated liquid in the first medium, thereby ensuring a stable liquid interface between the fluorinated liquid and the second medium, and guaranteeing stable flow visualization of the working fluid.

[0239] Considering the relationship between the stability of the liquid interface and the thermal stability of the second medium, as a feasible approach, the number of carbon atoms in the main chain of the fluorinated liquid can be greater than or equal to 5, so that the fluorinated liquid has high thermal stability. That is, the fluorinated liquid has good thermal stability, is not easily volatile, and can form a stable liquid interface with the first medium, ensuring that the working fluid can have a stable flow visualization effect.

[0240] Considering the relationship between the heat dissipation performance and viscosity of the second medium, as a feasible approach to further improve the heat dissipation performance of the working fluid, the number of carbon atoms in the main chain of the fluorinated liquid can be less than or equal to 11. The fluorinated liquid has a lower viscosity, ensuring less resistance during the flow of the working fluid, resulting in greater heat transfer per unit time and thus achieving better heat dissipation performance.

[0241] To balance the visual effect of stable fluid flow and better heat dissipation performance, as a feasible approach, the number of carbon atoms in the main chain of the fluorinated liquid can be between 5 and 8.

[0242] For example, the molecular structure of a fluorinated liquid may include: , , , , , , , , , , , , , At least one of them.

[0243] exist middle, It is fluorine (F) or perfluoroalkyl ( ), It is a perfluoroalkyl group, which may include: 1, 2, 3, etc.

[0244] When silicone oil is used as a secondary medium, its molecular structure can include: , making It can have a liquid interface with the first medium.

[0245] For example, R may include: , wait.

[0246] This completes the description of the second medium.

[0247] As a feasible implementation method, the working medium may also include a water-soluble dye. The water-soluble dye involved in this application can be understood as a dye that causes the first medium to develop color, wherein the solubility of the water-soluble dye in the first medium is greater than its solubility in the second medium. In the embodiments of this application, the water-soluble dye may also be referred to as an inorganic dye.

[0248] For example, water-soluble dyes may include, but are not limited to, methyl orange, methyl blue, etc.

[0249] As a feasible implementation method, water-soluble dyes may include: colored salts. Colored salts can be understood as salts that produce color in aqueous solutions. Colored salts may include: inorganic anions and cations. For example, colored salts may include, but are not limited to: copper sulfate (…). ), copper chloride ( Copper nitrate ( ), ferrous sulfate ( ), ferrous chloride ( ), ferrous nitrate ( ), ferric sulfate ( ), ferric chloride ( ), ferric nitrate ( ),potassium permanganate( ), cobalt chloride ( ), cobalt sulfate ( ), cobalt nitrate ( Nickel chloride () ), nickel sulfate ( ), nickel nitrate ( )wait.

[0250] The second medium is dispersed in the form of small droplets. When an emulsion forms inside, Preferentially binding with cations and inorganic anions leads to a reduction in the thickness of the hydration layer on the surface of the droplets. The droplets tend to aggregate to form a continuous second medium, thereby restoring the liquid interface between the first and second media.

[0251] In this implementation, the working fluid includes a water-soluble dye, which enables the first medium to develop color. The solubility of the water-soluble dye in the first medium is greater than its solubility in the second medium. The introduction of the water-soluble dye allows for a greater color contrast between the first and second media, resulting in a significant visual effect of the working fluid's flow.

[0252] As a feasible implementation method, the working medium may also include: an oil-soluble dye. The oil-soluble dye involved in this application can be understood as a dye that causes the second medium to develop color, wherein the solubility of the oil-soluble dye in the second medium is greater than the solubility of the oil-soluble dye in the first medium. In the embodiments of this application, the oil-soluble dye may also be referred to as an organic dye.

[0253] In this implementation, the working medium includes an oil-soluble dye, which can make the second medium colored. The solubility of the oil-soluble dye in the second medium is greater than that in the first medium. The introduction of the oil-soluble dye can make the second medium have a large color contrast with the first medium, so that the working medium can have a significant flow visualization effect.

[0254] It is worth noting that in implementations where the working medium contains both water-soluble and oil-soluble dyes, the oil-soluble dyes and water-soluble dyes should be selected to have different colors, so that the second medium has a large color contrast with the first medium. For example, a red water-soluble dye and a blue oil-soluble dye can be selected.

[0255] As a feasible implementation method, the working medium may also include: colorless salts, including but not limited to: sodium chloride (NaCl), magnesium chloride (… ), calcium chloride ( ) liquid, aluminum nitrate ( Colorless salts can act as demulsifiers.

[0256] As a feasible implementation method, the working medium may also include inorganic acids. For example, inorganic acids may include hydrochloric acid (HCl), sulfuric acid, etc. Inorganic acids can act as demulsifiers.

[0257] As a feasible implementation method, the working medium may also include inorganic acids. For example, inorganic acids may include hydrochloric acid (HCl), sulfuric acid, etc. Inorganic acids can act as demulsifiers.

[0258] The working fluid disclosed in the embodiments of this application will be further explained below with reference to specific examples.

[0259] Example 1: Example 1 discloses a working fluid with high thermal conductivity and visible flow characteristics. The components of the working fluid can be found in Table 1. Table 1

[0260] The working fluid disclosed in Example 1 has the following effects: The first medium consists of water, which has excellent heat dissipation properties, ensuring that the working fluid has excellent heat dissipation capabilities. The temperature difference at various points in the liquid cooling working fluid is less than 3°C.

[0261] In the working fluid, the second medium includes silicone oil. Silicone oils can form a liquid interface with water, making the flow state of the working fluid visible.

[0262] The working medium also includes a water-soluble blue dye and an oil-soluble red dye. The water-soluble blue dye dissolves in the first medium, giving it a blue color. The oil-soluble red dye dissolves in the second medium, giving it a red color. The strong color contrast between the first and second media enhances the visualization of the working medium's flow.

[0263] Example 2: Example 2 discloses a working fluid with high thermal conductivity and visible flow characteristics. The components of the working fluid can be found in Table 2. Table 2

[0264] The working medium disclosed in Example 2 has similar effects to the working medium disclosed in Example 1, the difference being: Example 2 discloses a working fluid comprising three liquid interfaces: a liquid interface formed by water and hydrocarbons, a liquid interface formed by fluorinated liquid and hydrocarbons, and a liquid interface formed by water and fluorinated liquid.

[0265] In Example 2, the working fluid used polyoxyethylene ether surfactant and Gemini surfactant as the first auxiliary agent. Gemini surfactant has a high demulsification efficiency.

[0266] Copper chloride (second auxiliary agent) serves as the second auxiliary agent, while copper chloride (dissolved in the first medium) assists in color development. The first medium and the second medium have a strong color contrast, which enhances the visualization of the working fluid flow.

[0267] Example 3: Example 3 discloses a working fluid with high thermal conductivity and visible flow characteristics. The components of the working fluid can be found in Table 3. Table 3

[0268] The effects that the working fluid disclosed in Example 3 can achieve can be referred to the effects that the working fluid disclosed in Example 1 can achieve.

[0269] This completes the description of the working fluid.

[0270] This application also discloses a liquid cooling module, which may include a pump and a working fluid. The pump is connected to the working fluid and is used to drive the working fluid to move. During the movement of the working fluid, the liquid interface formed by the first medium and the second medium moves relative to the inner wall of the cavity, thereby making the movement of the working fluid present a flow visualization effect. That is, the liquid cooling module forms a flow visualization area.

[0271] This application also discloses an electronic device; please refer to [link / reference needed]. Figures 6-11The electronic device 1 may include: a liquid cooling module 10 and a housing 20 as disclosed in the embodiments of this application. The liquid cooling module 10 is embedded in the housing 20, and at least a portion of the area of ​​the housing of the liquid cooling module 10 has a visible light transmittance greater than or equal to a threshold.

[0272] This application does not impose specific limitations on the threshold. For example, the threshold may include 50%, 80%, 90%, etc.

[0273] The liquid cooling module 10 may include a pump 200 and a working fluid (not shown in the figure). The working fluid may include a first medium and a second medium. The pump 200 acts as a power source for the working fluid, driving its movement. During the movement of the working fluid, the liquid interface moves relative to the cavity used to contain the working fluid, thereby achieving a significant flow visualization effect.

[0274] The liquid cooling module 10 is embedded in the housing 20, and at least a portion of the housing of the liquid cooling module 10 has a visible light transmittance greater than or equal to a threshold, so that the working fluid flow visualization effect can be displayed through the housing in that area, thus making that area of ​​the housing the flow visualization area 2A.

[0275] Please see Figure 10 As a feasible implementation method, the liquid cooling module 10 may further include: a liquid cooling module 100, which has a cavity B for containing the working fluid, and the cavity B of the liquid cooling module 100 is connected to the pump 200.

[0276] Please see Figure 11 As one feasible implementation, the housing 20 has a groove B, which serves as a cavity for containing the working fluid. The groove B is connected to the pump 200.

[0277] The electronic devices disclosed in this application may include, but are not limited to: mobile phones ( Figure 6 ), tablet computer Figure 7 ), laptop ( Figure 8 ), vehicle-mounted equipment ( Figure 9 )wait.

[0278] The electronic devices disclosed in the embodiments of this application will be further described below with reference to specific examples.

[0279] For example, please refer to Figure 6 In (a), the liquid cooling module 10 is embedded in the mobile phone housing 20. The transmittance of visible light in region 2A of the camera substrate of the mobile phone housing 20 is greater than or equal to the threshold. It can see the movement of the liquid interface of the working fluid relative to the cavity through region 2A, making region 2A a flow visualization region 2A.

[0280] For example, please refer to Figure 6In (ii), the liquid cooling module 10 is embedded in the phone housing 20. The phone housing includes: a first non-folding portion 21, a folding portion 23, and a second non-folding portion 22. A portion of the first non-folding portion 21, a portion of the folding portion 23, and a portion of the second non-folding portion 22 have a visible light transmittance greater than or equal to a threshold (transparent area). A transaxial flow visualization area 2A can be formed in the aforementioned transparent area.

[0281] For example, please refer to Figure 7 The liquid cooling module 10 is embedded in the tablet housing 20, and at least a portion of the tablet housing 20 has a visible light transmittance greater than or equal to a threshold, forming a flow visualization region 2A in that region.

[0282] For example, please refer to Figure 8 The laptop's casing may include: a body casing 24 and a display casing 25. See also... Figure 8 In one of the feasible implementation methods, the liquid cooling module 10 is embedded in the fuselage housing 24, so that the fuselage housing 24 can have a flow visualization area 2A.

[0283] Please see Figure 8 In (ii), in some feasible implementations, the liquid cooling module 10 is embedded in the display housing 25, so that the display housing 25 can have a flowing visualization area 2A.

[0284] For example, please refer to Figure 9 The liquid cooling module 10 can be embedded in the vehicle equipment housing 20, so that the vehicle equipment housing 20 has a flow visualization area 2A.

[0285] It is worth noting that in the implementation of the liquid cooling module embedded in the housing, flow visualization areas with different shapes can be obtained by setting the shape of the light-transmitting area of ​​the housing. The embodiments of this application are merely illustrative examples of several shapes of flow visualization areas, and the above shapes do not constitute specific limitations.

[0286] This application also discloses an accessory applicable to electronic devices. The accessory may include an accessory body and a liquid cooling module disclosed in this application. The liquid cooling module is embedded in the accessory body. At least a portion of the accessory body has a visible light transmittance greater than or equal to a threshold, so that the visualization effect of the working fluid flow in the liquid cooling module can be displayed through the accessory body in that portion, thus making that portion of the accessory a flow visualization area.

[0287] The following description, using the accessory as an example with specific attached diagrams, will further illustrate the accessory: Please see Figure 12 , Figure 12A protective shell is disclosed. The protective shell 2 may include: an accessory body 40 and a liquid cooling module 10 embedded in the accessory body 40. At least a portion of the accessory body 40 has a visible light transmittance greater than or equal to a threshold, so that the flow visualization effect of the working fluid can be displayed through this area, thus enabling the accessory to have a flow display area 2A.

[0288] The accessories mentioned in this application can be understood as components used in conjunction with electronic devices and disposed on the outside of the housing. For example, accessories may include, but are not limited to: wristbands and protective cases.

[0289] The following examples illustrate the application scenarios of the accessories: For example, please refer to Figure 13 , Figure 13 This is an assembly diagram of a wearable device 1 and a wristband 2 (accessory). The wristband 2 is connected to the wearable device 1, allowing the wearable device 1 to be fitted onto a target object. A liquid cooling module can be placed inside the wristband, giving the wristband a flow visualization area 2A.

[0290] For example, please refer to Figure 14 , Figure 14 This is an assembly diagram of tablet computer 1 and protective case 2 (accessory). The protective case 2 can be fitted over tablet computer 1 to protect it. The liquid cooling module can be placed inside the protective case 2, giving the protective case 2 a flow visualization area 2A.

[0291] For example, please refer to Figure 15 , Figure 15 This is an assembly diagram of mobile phone 1 and connector 2 (accessory), with connector 2 connecting to the mobile phone. A liquid cooling module can be placed inside connector 2, giving connector 2 a flow visualization area 2A.

[0292] This application also discloses a method for preparing a working fluid, comprising: measuring a first medium and a second medium; mixing the first medium and the second medium to obtain a working fluid, wherein the heat dissipation coefficient of the first medium is greater than that of the second medium, and a liquid interface exists between the first medium and the second medium in the working fluid.

[0293] The working fluid, liquid cooling module, and electronic equipment provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and embodiments of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in specific embodiments and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A working fluid, characterized in that, include: First medium; The second medium has a liquid interface between the first medium and the second medium, and the heat dissipation coefficient of the first medium is greater than that of the second medium. The working medium further includes at least one of a first auxiliary agent or a second auxiliary agent; The first auxiliary agent includes at least one of the following: fluorocarbon surfactants, polyoxyethylene ether nonionic surfactants, and gemini surfactants; The second adjuvant includes at least one of the following: organic alcohols, organic ketones, amines, organic acids, lipids, ethers, aromatics, and organic salts.

2. The working fluid according to claim 1, characterized in that, The molecular structural formulas of the fluorocarbon surfactants include: ； The In the equation x=6, y is between 5 and 14.

3. The working fluid according to claim 1, characterized in that, The molecular structural formula of the polyoxyethylene ether nonionic surfactant includes: , At least one of them; In the The above The R in the middle includes: a hydrophobic group or a hydrogen atom.

4. The working fluid according to claim 1, characterized in that, The molecular structural formula of the Gemini surfactant includes: ； The The above The above The above The above The above At least one of them is a hydrophilic group, and the The above The above The above The above The above At least one of them is a hydrophobic group.

5. The working fluid according to claim 4, characterized in that, The and stated and stated and stated All include: the hydrophobic group; The and stated All include: the hydrophilic group.

6. The working fluid according to claim 5, characterized in that, The hydrophilic group may include: , , , or One or more of them.

7. The working fluid according to claim 5, characterized in that, The hydrophobic group includes one or more of the following: alkyl, alkoxy, aromatic or fluoroalkyl.

8. The working fluid according to any one of claims 4-7, characterized in that, The molecular structural formula of the Gemini surfactant includes: or .

9. The working fluid according to claim 1, characterized in that, The mass fraction of the first additive in the working fluid is between 0.01% and 20%.

10. The working fluid according to claim 1, characterized in that, The molecular structural formula of the amine compound may include: , , At least one of them.

11. The working fluid according to claim 10, characterized in that, R7, R8, R9, and R10 each include independently. alkyl, cycloalkyl, At least one of the aromatic groups.

12. The working fluid according to claim 1, characterized in that, The molecular structural formula of the second adjuvant includes: The R includes at least one of methyl, methoxy, ethyl, ethoxy, propyl, butyl, pentyl, hexyl, heptyl, octyl, phenyl, hydroxy, and vinyl, and the side chain of the R includes a C3-C18 alkyl substituent.

13. The working fluid according to claim 12, characterized in that, The In the case of n, n is between 0 and 100.

14. The working fluid according to claim 1, characterized in that, The second auxiliary agent has a mass fraction of 0.01%-20% in the working fluid.

15. The working fluid according to claim 1, characterized in that, Also includes: A water-soluble dye, wherein the solubility of the water-soluble dye in the first medium is greater than the solubility of the water-soluble dye in the second medium.

16. The working fluid according to claim 1, characterized in that, Also includes: An oil-soluble dye, wherein the solubility of the oil-soluble dye in the second medium is greater than the solubility of the oil-soluble dye in the first medium.

17. The working fluid according to claim 1, characterized in that, The first medium includes at least one of water and liquid metal.

18. The working fluid according to claim 1, characterized in that, The mass fraction of the first medium in the working fluid is greater than or equal to 50%.

19. The working fluid according to claim 1, characterized in that, The conductivity of the first medium is less than or equal to 500 μs / cm.

20. The working fluid according to claim 1, characterized in that, The second medium includes at least one of hydrocarbons, heteroatom organic compounds, and fluorinated liquids.

21. The working fluid according to claim 1, characterized in that, The molecular structural formula of the second medium includes: The R mentioned herein includes at least one of the following: methyl, methoxy, ethyl, ethoxy, propyl, butyl, pentyl, hexyl, heptyl, octyl, phenyl, hydroxy, and vinyl.

22. The working fluid according to claim 1, characterized in that, The second medium has a mass fraction of 0.1%-50% in the working fluid.

23. The working fluid according to claim 1, characterized in that, The working fluid is used in electronic devices.

24. A liquid-cooled module, characterized in that, include: The working fluid as described in any one of claims 1-23; A pump for driving the working fluid to move within a cavity such that the liquid interface of the working fluid moves relative to the cavity for containing the working fluid.

25. An electronic device, characterized in that, include: The housing and the liquid-cooled module as described in claim 24; The liquid cooling module is embedded in the housing. The housing covers at least a portion of the liquid-cooled module, and the transmittance of visible light is greater than or equal to a threshold.

26. The electronic device according to claim 25, characterized in that, The housing is provided with a groove, which forms a cavity to accommodate the working fluid.

27. The electronic device according to claim 25, characterized in that, The liquid cooling module further includes a liquid cooling module having a cavity for containing the working fluid.

28. An accessory suitable for electronic devices, characterized in that, include: The accessory body and the liquid cooling module of claim 24, wherein the liquid cooling module is embedded in the accessory body; the accessory body covers at least a portion of the liquid cooling module and has a visible light transmittance greater than or equal to a threshold.

29. A method for preparing a working fluid, characterized in that, include: The heat dissipation coefficient of the first medium is greater than that of the second medium. Measure the auxiliary agent, wherein the auxiliary agent includes at least one of a first auxiliary agent or a second auxiliary agent; The working fluid is obtained by mixing the first medium, the second medium, and the additive, wherein a liquid interface exists between the first medium and the second medium in the working fluid; The first auxiliary agent includes at least one of fluorocarbon surfactants, polyoxyethylene ether nonionic surfactants, and gemini surfactants; the second auxiliary agent includes at least one of organic alcohols, organic ketones, amines, organic acids, lipids, ethers, aromatics, and organic salts.

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