CN108667986B

CN108667986B - Mobile phone shell with heat preservation and heat dissipation functions

Info

Publication number: CN108667986B
Application number: CN201810485870.0A
Authority: CN
Inventors: 田园
Original assignee: Jiangxi Qimai Technology Co Ltd
Current assignee: Jiangxi Qimai Technology Co., Ltd
Priority date: 2018-05-21
Filing date: 2018-05-21
Publication date: 2020-07-21
Anticipated expiration: 2038-05-21
Also published as: CN108667986A

Abstract

The invention discloses a mobile phone shell with heat preservation and dissipation functions, which comprises a hard shell, wherein the back of the shell is provided with a round cavity, the back of the shell is provided with a hollow groove, a mixture of a phase-change material and a low-melting-point metal is filled in the hollow groove, the back of the shell is provided with a 'return' shaped cavity, a transparent hose is arranged in the 'return' shaped cavity, and liquid and a bright sheet capable of freely moving in the liquid are arranged in the transparent hose. The mobile phone heat-insulating cover not only has the effect of insulating the mobile phone in a low-temperature environment and the effect of radiating the mobile phone in a high-temperature environment, but also can effectively reduce the impact force when the mobile phone falls.

Description

Mobile phone shell with heat preservation and heat dissipation functions

Technical Field

The invention relates to the technical field of mobile phone accessories, in particular to a mobile phone shell with heat preservation and radiation functions.

Background

In recent years, the mobile phone industry is developed vigorously, various types of mobile phones are endlessly layered, and the competition of the mobile phone industry is more and more intense; at present, mobile phones develop towards the directions of being large, light and thin, along with the change of the appearance of the mobile phones, the screens of the mobile phones become larger and smaller, the thickness of the mobile phones is thinner and thinner, the firmness degree of the mobile phones is lower and lower, and the probability of the mobile phones breaking is increased obviously because the size of the mobile phones is larger and the probability of the mobile phones breaking off the hands in use is increased; the existing mobile phones are equipped with lithium ion batteries, so that the situation of 'false death' is very likely to occur when the mobile phones are used for a long time in a cold environment, particularly, when a northern mobile phone user receives a call or replies a message through the mobile phone in a low-temperature environment, the temperature of the mobile phone is suddenly reduced, the mobile phone is automatically powered off for protecting the battery, and similarly, if the temperature of the battery exceeds a critical value (usually about 38 ℃), the mobile phone also has an alarm of battery overheating, and the battery of the mobile phone is slowly cooled by adopting an automatic power-off method.

A phase change material (PCM-phase change material) refers to a substance that changes the state of a substance with a change in temperature and can provide latent heat. The process of changing physical properties is called a phase change process, and in this case, the phase change material absorbs or releases a large amount of latent heat.

Phase change materials have the ability to change their physical state over a range of temperatures. Taking solid-liquid phase change as an example, when the material is heated to a melting temperature, the material generates phase change from a solid state to a liquid state, and in the melting process, the phase change material absorbs and stores a large amount of latent heat; when the phase change material is cooled, the stored heat is dissipated to the environment within a certain temperature range, and reverse phase change from liquid to solid is carried out. In both phase change processes, the stored or released energy is called latent heat of phase change. When the physical state changes, the temperature of the material is almost kept unchanged before the phase change is completed, a wide temperature platform is formed, and although the temperature is unchanged, the latent heat absorbed or released is quite large.

The classification of phase change materials mainly includes three types of inorganic PCM, organic PCM, and composite PCM. Wherein, the inorganic PCM mainly comprises crystalline hydrated salts, molten salts, metals or alloys and the like; the organic PCM mainly comprises paraffin, acetic acid and other organic matters; the composite phase-change heat storage material has the advantages that the defects of a single inorganic or organic phase-change heat storage material can be effectively overcome, the application effect of the phase-change material can be improved, and the application range of the phase-change material can be expanded.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a mobile phone shell with heat preservation and dissipation functions.

In order to achieve the purpose, the invention adopts the following technical scheme:

cell-phone shell with heat preservation and heat dissipation function, including stereoplasm, the back be equipped with the casing in round chamber, its characterized in that, the back of casing is equipped with the cavity groove, the cavity inslot is filled with the mixture, the mixture is phase change material and low melting metal component, the back of casing is equipped with "the" chamber of returning ", the" chamber of returning "is equipped with transparent hose in the chamber, be equipped with liquid and can be in the liquid bright sheet of free removal in the transparent hose.

Preferably, the side wall of the transparent hose is coated with a fluorescent layer.

Preferably, the phase transition temperature of the phase change material is-15 °, and the melting temperature of the low melting point metal is 38 °.

Preferably, the side wall of the transparent hose is in close contact with the inner wall of the "return" shaped cavity.

In the invention, the hollow groove on the back of the shell is filled with the mixture, the mixture is composed of the phase-change material and the low-melting-point metal, the phase-change temperature of the phase-change material is-15 degrees, the melting temperature of the low-melting-point metal is 38 degrees, in cold winter in the north, when a user needs to use the mobile phone to answer a call or reply information, the phase-change material absorbs heat and melts to become liquid when the mobile phone is in a pocket of clothes, when the mobile phone is taken out from the pocket, the environment suddenly becomes cold, the first phase-change material is solidified when meeting the condensation to generate heat, and the heat generated by the solidification of the first phase-change material can be well transferred to the mobile phone due to the close fit of the rear shell of the mobile phone and the shell, so that the battery of the mobile phone is prevented from being in a lower.

In summer, when the user used the phone in the short-lived outdoor trip process, higher outdoor temperature and strong sunshine can shine on the cell-phone shell, all can make the cell-phone shell heat up rapidly, and the low melting point metal absorbs the heat of melting absorption, can effectually dispel the heat to the cell-phone, prevents that the cell-phone from exceeding the critical value because of the battery temperature, and takes the method of automatic shutdown to make the cell-phone battery slowly cool down.

When the external environment temperature is normal temperature, the phase change material is in a viscous gel state, when the mobile phone falls, an effective buffer effect can be achieved, the low-melting-point metal is in a solid-state granular state, the solid-state granular low-melting-point metal can move in the phase change material, when the mobile phone falls, impact force in any direction is transmitted to a plurality of low-melting-point metals through the phase change material in a liquid state, the low-melting-point metals absorb kinetic energy, and therefore, when the shell is impacted at any position, the shock absorption and buffer effects can be effectively achieved, and the traditional mobile phone shell is not just used for reinforcing the corners of the mobile phone;

the transparent hose coated with the fluorescent layer can facilitate finding the mobile phone at night, and the bright sheets flowing in the transparent hose enable the mobile phone to be more colorful at night. The mobile phone heat-insulating cover not only has the effect of insulating the mobile phone in a low-temperature environment and the effect of radiating the mobile phone in a high-temperature environment, but also can effectively reduce the impact force when the mobile phone falls.

Drawings

Fig. 1 is a schematic structural view of a mobile phone case with heat preservation and dissipation functions according to the present invention;

fig. 2 is a schematic side view of a mobile phone case with heat preservation and dissipation functions according to the present invention;

fig. 3 is an enlarged schematic view of a structure in fig. 1.

In the figure: 1 shell, 2 mixtures, 3 transparent hoses, 4 paillettes, 5 round cavities and 6 fluorescent layers.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a mobile phone shell with heat preservation and dissipation functions comprises a hard shell 1 with a round cavity 5 on the back, a hollow groove is arranged on the back of the shell 1, a mixture 2 is filled in the hollow groove, the mixture 2 is composed of a phase change material and a low-melting-point metal, the phase change material is in a viscous gel state at a temperature of between-15 ° and 38 °, the phase change material used in the application document is 5% -25% of ammonium chloride, 2.5% -25% of acrylic acid, 5% -15% of alum, 5% -25% of maleic anhydride, 5% -10% of sodium hydroxymethyl cellulose, 5% -25% of grease, and the balance of water, the low-melting-point metal is in a granular solid state at a temperature of less than 40 °, the low-melting-point metal used in the application document is an alloy containing 41% of bismuth, 25% of lead, 10% of tin and 5% of cadmium, the back of the shell 1 is provided with a 'return' shaped cavity, a transparent hose 3 is arranged in the 'return' shaped cavity, and liquid and paillettes 4 capable of freely moving in the liquid are arranged in the transparent hose 3.

In the invention, the side wall of the transparent hose 3 is coated with the fluorescent layer 6, the phase transition temperature of the phase transition material is-15 degrees, the melting temperature of the low-melting-point metal is 38 degrees, and the side wall of the transparent hose 3 is tightly attached to the inner wall of the 'returning' shape cavity.

In the invention, the mixture 2 is filled in the hollow groove at the back of the shell 1, the mixture 2 is composed of the phase-change material and the low-melting-point metal, the phase-change temperature of the phase-change material is-15 degrees, the melting temperature of the low-melting-point metal is 38 degrees, in cold winter in the north, when a user needs to use a mobile phone to answer a call or reply information, the phase-change material absorbs heat and melts to become liquid when the mobile phone is in a pocket of clothes, when the mobile phone is taken out from the pocket, the environment suddenly becomes cold, the first phase-change material solidifies when meeting the cold to generate heat, and because the rear shell of the mobile phone is tightly attached to the shell 1, the heat generated by the solidification of the first phase-change material can be well transferred to the mobile phone, so that the battery of the mobile phone is prevented from being in a lower temperature environment, and the.

When external environment temperature is at normal temperature, the phase change material is in a viscous gel state, when the mobile phone falls, an effective buffering effect can be achieved, the low-melting-point metal is in a solid granular state, the solid granular low-melting-point metal can move in the phase change material, when the mobile phone falls, impact force in any direction is transmitted to the countless low-melting-point metal through the phase change material in a liquid state, the low-melting-point metal absorbs kinetic energy, and therefore the shell 1 can effectively absorb shock and buffer the impact when being impacted at any position, and the corner of the mobile phone is not just reinforced like a traditional mobile phone shell.

The transparent hose 3 coated with the fluorescent layer 6 can facilitate finding the mobile phone at night, and the bright sheets 4 flowing in the transparent hose can make the mobile phone more gorgeous and colorful at night.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. Cell-phone shell with heat preservation and heat dissipation function, including casing (1) that stereoplasm, back were equipped with round cavity (5), its characterized in that, the back of casing (1) is equipped with the cavity groove, the cavity inslot is filled with mixture (2), mixture (2) are phase change material and low-melting metal and constitute, the back of casing (1) is equipped with "time" shape chamber, "time" shape intracavity is equipped with transparent hose (3), be equipped with liquid and can be in liquid bright sheet (4) of free removal, the lateral wall coating of transparent hose (3) has fluorescent layer (6), phase change material's phase transition temperature is-15, low-melting metal's melting temperature is 38, the lateral wall of transparent hose (3) closely laminates with the inner wall in "time" shape chamber.