CN105744811A - Housing and mobile terminal - Google Patents

Abstract

The invention discloses a casing. The casing includes a body and heat-absorbing and heat-radiating parts. The heat-absorbing and heat-radiating parts are arranged on the body. It is composed of a mixture of heat-absorbing and heat-storage materials and heat-conducting and heat-dissipating materials. The heat-conducting and heat-dissipating materials are used to transfer the heat on the body to the heat-absorbing and heat-storing materials. The heat conducted by the material. The housing provided by the present invention is provided with heat-absorbing and heat-radiating parts on the body, and the heat-absorbing and heat-radiating parts include a mixed material with functions of heat absorption, heat storage and heat dissipation, which can absorb heat on the body, and store and dissipate heat , so that the temperature of the casing can be reduced to ensure the normal operation of the mobile terminal with the casing, and at the same time, the temperature of the casing can be avoided from being too high through the functions of heat storage and heat dissipation. The invention also provides a mobile terminal.

Description

Housing and mobile terminal

technical field

The invention relates to the field of electronic equipment, in particular to a housing and a mobile terminal.

Background technique

With the development of the mobile phone industry, the configuration of mobile phones is getting higher and higher, the main frequency of the central processing unit (Central Processing Unit/CPU) is getting higher and higher, and the power consumption is increasing, resulting in a corresponding increase in the heat generated by the mobile phone. To control or transfer, there will be two impacts: 1. The temperature of the mobile phone chip is too high, resulting in slow operation of the mobile phone, or even freezes, affecting the use of the mobile phone; 2. The temperature of the mobile phone chip is transmitted to the mobile phone shell, causing the shell The temperature is high, and there will be problems such as hot hands and ears when using it.

In order to solve the heating problem of mobile phones, the current industry generally arranges heat-dissipating graphite sheets on the inner wall of the housing or on the shielding cover of the mobile phone, and uses the heat-dissipating graphite sheets to dissipate heat along the periphery to play the role of heat uniformity and heat dissipation. However, the inventor is implementing the above technology During the project, it was found that the location of the heat-dissipating graphite sheet is limited by the position, and it is impossible to directly dissipate heat at the location with a large amount of heat, and the heat-dissipating graphite sheet is instant heat dissipation. At this time, the overall temperature of the mobile phone may be high, and its instant heat dissipation will cause The temperature of the shell of the mobile phone is higher, so that the heat of the mobile phone cannot be better dissipated.

Contents of the invention

The object of the present invention is to provide a casing and a mobile terminal capable of reducing the influence of heat.

In order to solve the above technical problems, the present invention provides a casing, the casing is the back cover of a mobile terminal, the casing includes a body and a heat-absorbing and heat-radiating element, and the heat-absorbing and heat-radiating element is arranged on the body , the heat-absorbing and heat-dissipating part includes a mixed material with material properties of heat-absorbing, heat-storing and heat-dissipating functions, the mixed material is composed of a heat-absorbing heat-storing material and a heat-conducting and heat-dissipating material, and the heat-conducting and heat-dissipating material is used to combine the heat-dissipating and heat-dissipating materials The heat on the body is transferred to the heat-absorbing heat-storage material, and the heat-absorbing heat-storage material is used to absorb and store the heat on the body while storing the heat conducted by the heat-conducting and heat-dissipating material.

Wherein, the inner surface of the body has a first area, the first area is used to carry a battery, and the heat-absorbing and heat-dissipating element is disposed on the first area.

Wherein, the body defines a plurality of heat conduction holes.

Wherein, the mixed material is formed by mixing a heat absorbing heat storage material and a heat conduction and heat dissipation material, and the mass ratio of the heat absorbing heat storage material to the heat conduction and heat dissipation material is 1:1.

Wherein, the endothermic heat storage material includes silicon dioxide and polyethylene glycol, and the mass ratio of silicon dioxide and polyethylene glycol is 1:1˜1:9.

Wherein, the heat-absorbing heat-storage material is composed of several microcapsules with the silicon dioxide as the capsule wall and the polyethylene glycol as the capsule core.

Wherein, the heat conduction and heat dissipation material is graphite or metal.

Wherein, the heat-absorbing and heat-dissipating element also includes a titanate coupling agent and an adhesive layer, the mixed material and the titanate coupling agent are mixed to form a sheet material, and the adhesive layer is laminated on the On the sheet material, the sheet material is bonded to the body through the adhesive layer.

Wherein, the heat-absorbing and heat-dissipating element further includes a diluting solvent and a bonding solution, and the mixed material, the diluting solvent and the bonding solution are mixed and coated on the body.

Wherein, the heat-absorbing and heat-dissipating element further includes a base and an adhesive layer, the mixed material is coated on the base, the adhesive layer is laminated on the mixed material, and the mixed material is coated The base is adhered to the body through the adhesive layer.

Wherein, the housing further includes a protective film, the protective film is disposed on the heat-absorbing and heat-dissipating element, and the protective film is located on a side away from the main body.

An embodiment of the present invention also provides a mobile terminal, including a battery and a casing, the battery is carried on the body, and the heat-absorbing and cooling member is located between the body and the battery.

The housing provided by the present invention is provided with a heat-absorbing and heat-radiating part on the body. The heat-absorbing and heat-radiating part includes a mixed material with functions of heat absorption, heat storage and heat dissipation. The heat-absorbing and heat-storage material is used to absorb and store the heat on the body, while the heat-conducting and heat-dissipating material accelerates the absorption and distribution of heat on the body by the heat-absorbing and heat-storing material, and uses the mixed material to absorb, store and recharge the heat on the body. Heat dissipation, so that the temperature of the casing can be reduced to ensure the normal operation of the mobile terminal with the casing, and at the same time, the temperature of the casing can be prevented from being too high through the functions of heat storage and heat dissipation.

Description of drawings

In order to illustrate the technical solution of the present invention more clearly, the accompanying drawings used in the implementation will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the present invention. Technical personnel can also obtain other drawings based on these drawings without paying creative labor.

Fig. 1 is a schematic diagram of a casing provided by Embodiment 1 of the present invention;

Fig. 1a is a cross-sectional view of a housing provided in Embodiment 1 of the present invention;

Fig. 2 is a cross-sectional view of a casing provided by Embodiment 2 of the present invention;

Fig. 3 is a cross-sectional view of a casing provided by Embodiment 3 of the present invention;

FIG. 4 is a schematic diagram of a mobile terminal provided by Embodiment 4 of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

The mobile terminal involved in the embodiment of the present invention can be any device with communication and storage functions, such as: tablet computer, mobile phone, e-reader, remote controller, personal computer (PersonalComputer, PC), notebook computer, vehicle-mounted equipment, network TV, Smart devices with network functions such as wearable devices.

Please refer to FIG. 1 to FIG. 1a together. FIG. 1 is a schematic diagram of a casing 100 provided by Embodiment 1 of the present invention. The casing 100 includes a body 1 and a heat-absorbing and heat-radiating element 2. The heat-absorbing and heat-radiating element 2 is arranged on the body 1. Above, the heat-absorbing and heat-dissipating element 2 includes a mixed material with material properties of heat-absorbing, heat-storing and heat-dissipating functions, and the mixed material is composed of a heat-absorbing and heat-storing material mixed with a heat-conducting and heat-dissipating material, and the heat-conducting and heat-dissipating material is used to combine the heat-dissipating and heat-dissipating materials The heat on the body 1 is transferred to the heat-absorbing and heat-storage material, and the heat-absorbing and heat-storage material is used to absorb and store the heat on the body 1 while storing the heat conducted by the heat-conducting and heat-dissipating material.

In this embodiment, the housing 100 is the back cover of the mobile terminal, for example, the back cover that is in contact with the battery of the mobile terminal. The casing 100 has a backboard 11 and a side frame 12 disposed around the backboard 11 . The housing 100 is fastened with the middle frame or the panel assembly of the mobile terminal to form the shell of the mobile terminal. Since the back cover of the mobile terminal is close to the battery with larger heat generating parts, the heat absorbing and cooling parts 2 are arranged on the back cover to reduce the concentrated heat of the back cover, so that the setting of the heat absorbing and cooling parts 2 is more reasonable. Certainly, in other embodiments, the casing 100 may also be a middle frame or a back cover of a mobile terminal.

It can be understood that the heat-absorbing and heat-dissipating element 2 is arranged on the first area of the inner surface of the body 1 for carrying the battery, that is, to dissipate the heat concentrated on the first area, and to further optimize the setting of the heat-absorbing and heat-radiating element 2, Thereby reducing the effect of heat. Of course, in other embodiments, the heat-absorbing and heat-dissipating element 2 can also be arranged on the outer surface of the main body 1 or other positions.

It can be understood that the main body 1 defines a plurality of heat conduction holes 11a. The heat conduction hole 11 a can be formed by laser cutting, so that the heat conduction hole 11 a can be invisible to the naked eye, so as not to affect the appearance of the housing 100 . The heat conduction hole 11 a may be disposed in the first area, or may be disposed around the first area, so as to conduct better heat transfer to the heat in the housing 100 and further improve the heat dissipation performance of the housing 100 .

In this embodiment, the heat-absorbing and heat-dissipating element 2 includes a mixed material having material properties of heat-absorbing, heat-storing, and heat-dissipating functions.

It can be understood that the mixed material is formed by mixing heat-conducting and heat-dissipating materials and heat-absorbing heat-storage materials. The mass ratio is 1:1. The heat on the body 1 can be absorbed and stored in the heat-absorbing heat storage material by the heat-absorbing heat storage material contained in the mixed material in the heat-absorbing heat sink 2 to reduce the temperature of the body 1 , and by storing heat, heat can be avoided from being directly transferred to the mobile phone shell; heat is transferred and dissipated through the heat-conducting and heat-dissipating material contained in the mixed material in the heat-absorbing and heat-dissipating part 2, which can accelerate the heat absorption of the heat-absorbing and heat-storing material to the body 1 , after the endothermic heat storage material absorbs sufficient heat, it can dissipate the heat in the endothermic heat storage material, further strengthening the cooling effect on the main body 1 .

It can be understood that the endothermic heat storage material can be a phase change material, which can change its physical properties as the temperature changes and can absorb a large amount of heat. As the absorbed heat increases, the endothermic heat storage material changes from one The phase gradually transforms into another phase, and after absorbing enough heat, it will stably maintain the other phase and no longer absorb heat, and the absorbed heat will take away part of the latent heat with the phase change of the endothermic heat storage material, while When there is no heat on the body 1 or the heat is low, the heat-absorbing heat storage material dissipates heat and gradually returns from another phase to the original phase as the heat decreases. Among them, the endothermic heat storage material can change from solid phase to liquid phase or liquid phase to solid phase, or solid phase to gas phase or liquid phase to solid phase, or liquid phase to gas phase or gas phase to liquid phase as the temperature changes. change.

Optionally, the endothermic heat storage material preferably includes silicon dioxide and polyethylene glycol in a mass ratio of 1:1-1:9. The inventor obtained through a large number of experiments that the organic-composite phase change material that can be prepared by mixing silica and polyethylene glycol at a mass ratio of 1:1 to 1:9 has a suitable phase transition temperature and can absorb The heat of the body 1 is used to further improve the reliability of the casing and the mobile terminal. Specifically, the phase change temperature obtained by mixing the endothermic heat storage material is 40 degrees, that is, after the heat concentrated on the housing 100 reaches 40 degrees, the endothermic heat storage material undergoes a phase change and absorbs heat, and the heat of the body 1 Take it away to cool down the body 1. Certainly, in other embodiments, the heat absorption and heat storage material may also be an inorganic phase change material, or a composite phase change material, and the like.

Preferably, the endothermic heat storage material is composed of several microcapsules with silicon dioxide as the capsule wall and polyethylene glycol as the capsule core. The heat-absorbing heat-storage material of the microcapsule structure can better absorb heat and store heat for the body 1 , thereby achieving better heat-dissipating performance. Specifically, the process of making the endothermic heat storage material is as follows: add polyethylene glycol to a certain concentration of silica sol, and after it is completely dissolved, add CaCl ₂ coagulant solution dropwise, and under strong stirring, the polyethylene glycol Alcohol undergoes a sol-gel reaction in the silica sol, and after standing still, a three-dimensional network structure gel is formed; the gel is air-dried in an oven at 80°C for 24 to 48 hours, and cooled to room temperature, that is, the organosiloxane compound in the A large number of microcapsules with silica gel as the wall and emulsified polyethylene glycol as the core are produced under alkaline conditions. That is, in each microcapsule, silicon dioxide acts as a capsule wall to wrap polyethylene glycol as a capsule core, so that polyethylene glycol will not leak during the process from solid phase to liquid phase, and can be well absorbed by the secondary Silica coated. The heat-absorbing heat-storage material forming the microcapsule structure starts to absorb the heat on the body 1 after the heat of the shell 100 reaches 40 degrees, and the capsule core itself gradually changes from the solid phase to the liquid phase as the heat gradually increases. After the cores are all transformed into liquid phase, the heat absorbed by the heat-absorbing heat storage material is saturated, and it stops absorbing heat, and after the temperature of the shell 100 gradually decreases to the preset temperature, the capsule core will gradually transform from liquid phase to solid phase At the same time, the heat absorbed by the capsule core (because the endothermic heat storage material will take away part of the latent heat during the phase transition process of the capsule core from solid to liquid, so the heat in the capsule core is already very small at this time) gradually dissipates and transfers to In the air, at this moment, the temperature of the main body 1 is lowered through the above-mentioned cyclic conversion from the solid phase to the liquid phase, and the heat dissipation performance and reliability of the mobile terminal are improved. Among them, the heat-conducting and heat-dissipating material in the mixed material can accelerate the heat absorption of the body 1 by the heat-absorbing heat-storage material due to its own heat transfer and heat-dissipating properties, so that the heat on the body 1 can be quickly reduced, and the heat absorption and heat storage The heat release process of the material can also quickly dissipate the heat on the heat-absorbing and heat-storing material, thereby realizing rapid cooling of the body 1 by the mixed material. Of course, in other embodiments, the endothermic heat storage material can also be of other structures, so that the endothermic heat storage material can cool down the temperature of the main body 1 through cyclic conversion from solid phase to gas phase.

It can be understood that the heat conduction and heat dissipation material may be a material with better heat dissipation performance such as graphite or metal. Among them, the heat conduction and heat dissipation material is preferably graphite, which is soft and easy to process. The production process of the mixed material is as follows: mash the endothermic heat storage material and stir it vigorously to obtain powder. Since the diameter of the powder is much larger than that of each microcapsule, the microcapsules in the endothermic heat storage material will not be destroyed. structure, that is, it will not affect the heat-absorbing and heat-storage function of the heat-absorbing and heat-storing material; , heat storage and cooling functions.

As shown in Figure 1a, for further improvement, the heat-absorbing and heat-dissipating part 2 also includes a titanate coupling agent and a glue layer 22, and the mixed material and titanate coupling agent are mixed to form a sheet material 21, and the glue layer 22 The laminate is laminated on the sheet material 21 , and the sheet material 21 is bonded to the main body 1 through the adhesive layer 22 .

The sheet material 21 is made by mixing the mixed material with a titanate coupling agent, and then laminated and connected to the sheet material 21 through the adhesive layer 22 to form the heat-absorbing and heat-dissipating element 2, which not only enables the heat-absorbing and heat-radiating element 2 to conform to the housing The shape of 100 is used for cutting, which can better cooperate with the heat dissipation, and can absorb, store and dissipate heat at various positions of heat dissipation, further cool down the heat dissipation, improve the heat dissipation performance and reliability of heat dissipation, and the chip Shaped heat-absorbing and heat-dissipating parts 2 are more convenient to apply, and can be glued directly, without waiting for it to cool to form a coating.

In this example, the inorganic pseudo-organic composite shape-setting phase change material was obtained by adding a titanate coupling agent to the mixed material for hydrophobic modification, and then the inorganic pseudo-organic composite shape-setting phase change material was compressed by a tablet machine to obtain a thin sheet The shape is the sheet material 21 , and the sheet material 21 is laminated and connected with the adhesive layer 22 to form the heat-absorbing and heat-dissipating element 2 . It can be understood that the adhesive layer 22 can be back adhesive, double-sided adhesive or release film, etc. The heat-absorbing and heat-dissipating element 2 can be cut into a certain shape according to the shape of the body 1, and attached to the body 1 to realize the functions of heat absorption, heat storage and heat dissipation.

For further improvement, the casing 100 further includes a protective film 3 disposed on the heat-absorbing and heat-dissipating element 2 , and the protective film 3 is located on a side away from the main body 1 .

By disposing the protective film 3 on the heat-absorbing and heat-dissipating element 2 , the heat-absorbing and heat-dissipating element 2 is further protected, and the reliability of the casing 100 is further improved.

In the present embodiment, the protective film 3 is polyethylene terephthalate (PET), which is laminated and connected to the sheet material 21, and is opposite to the adhesive layer 22. The protective film 3 can further protect the sheet material. 21 for shaping and has the function of dustproof. Certainly, in other embodiments, the material of the protective film 3 can also be other materials, such as silica gel and graphite.

As shown in FIG. 2 , a casing 200 provided by the second embodiment of the present invention is substantially the same in basic structure as the casing 100 provided by the first embodiment of the present invention, the difference being that this embodiment The heat-absorbing and heat-dissipating element 32 includes a mixed material, a diluting solvent and a bonding solution, and the mixed material, the diluting solvent and the bonding solution are mixed and coated on the main body 31 .

The heat-absorbing and heat-dissipating element 32 is formed by mixing the dilution solvent, the bonding solution and the mixed material, so that the heat-absorbing and heat-dissipating element 32 has direct adhesion, and can be coated on the body 31 without additionally adding an adhesive layer, thus providing a The more convenient heat-absorbing and heat-dissipating parts 32 are used.

In this embodiment, the mixed material is added into the dilution solvent and mixed with a special bonding solution (for example: methanol xylene, acrylic resin, etc.), so that the heat-absorbing and heat-dissipating parts 32 have adhesion, and the heat-absorbing and heat-dissipating parts 32 are directly used The coated form is piled up to a certain thickness and attached to the body 31 of the casing 200, thereby realizing the functions of heat absorption, heat storage and heat dissipation.

For further improvement, the casing 200 further includes a protective film 33 disposed on the heat-absorbing and heat-dissipating element 32 , and the protective film 33 is located on a side away from the body 31 .

By disposing the protective film 33 on the heat-absorbing and heat-dissipating element 32 , the heat-absorbing and heat-dissipating element 32 is further protected, and the reliability of the casing 200 is further improved.

In this embodiment, the protective film 33 is polyethylene terephthalate (PET). Wherein, after the heat-absorbing and heat-dissipating element 32 is directly coated on the body 31 , the protective film 33 is disposed on the heat-absorbing and heat-dissipating element 32 . The protective film 33 can further shape the heat-absorbing and heat-dissipating element 32 and have the effect of dustproofing. Of course, in other embodiments, the material of the protective film 33 can also be other materials, such as silica gel or graphite.

As shown in Fig. 3, a casing 300 is provided in the third embodiment of the present invention, which is substantially the same in basic structure as the casing 100 provided in the first embodiment of the present invention, the difference is that the suction in this embodiment The heat dissipating element 42 further includes a base 421 and an adhesive layer 423 , the mixed material 422 is coated on the base 421 , the adhesive layer 423 is stacked and connected on the mixed material 422 , and the adhesive layer 423 is adhered to the body 41 .

By directly coating the mixed material 422 on the base 421 for molding, and then setting the adhesive layer 423 on the mixed material 422 to be pasted on the body 41, there is no need for a tablet machine for tableting, and the production is relatively simple.

In this embodiment, the base 421 is polyethylene terephthalate (PET), and the mixed material 422 is directly coated on the base 421 for molding, and the base 421 with the mixed material 422 is bonded to the base 423 through an adhesive layer 423. On the body 41 , the heat absorption, heat storage and heat dissipation functions of the heat absorption and heat dissipation element 42 are realized. It can be understood that the adhesive layer 423 can be back adhesive, double-sided adhesive or others.

For a further improvement, the casing 300 further includes a protective film 43 disposed on the heat absorbing and cooling element 42 , and the protective film 43 is located on a side away from the body 41 .

By disposing the protective film 43 on the heat-absorbing and heat-dissipating element 42 , the heat-absorbing and heat-dissipating element 42 is further protected, and the reliability of the casing 300 is further improved.

In this embodiment, the protective film 43 is polyethylene terephthalate (PET). The protection film 43 is disposed on the base 421 . The protective film 43 can further shape the heat-absorbing and heat-dissipating element 42 and have the effect of dustproofing. Certainly, in other embodiments, the material of the protective film 43 can also be other materials, such as silica gel and graphite.

Please refer to FIG. 4 , which is a schematic diagram of a mobile terminal 400 provided by the fourth embodiment of the present invention. The mobile terminal 400 includes a battery (not shown) and any of the casings 100, 200, and 300 in the above three embodiments. One, the battery is carried in the first area of the casing 100 , 200 , 300 , and the heat-absorbing and cooling elements 2 , 32 , 42 are located between the body of the casing 100 , 200 , 300 and the battery.

When the mobile terminal is being manufactured, firstly, a heat-absorbing and heat-dissipating element is arranged on the first area of the body, and then the battery is carried on the first area. Among them, the heat-absorbing and heat-storage material forming the microcapsule structure begins to absorb the heat on the body after the heat of the body reaches 40 degrees, and the capsule core itself gradually changes from the solid phase to the liquid phase. Good heat transfer and heat dissipation performance accelerates the absorption of heat from the body by the heat-absorbing and heat-storage material, so that the heat-absorbing and heat-dissipating parts can quickly absorb and store the heat on the body, and as the capsule core is converted into a liquid phase, The heat absorbed by the heat-absorbing heat-storage material has been saturated, and it stops absorbing heat. After the body temperature gradually drops to the preset temperature, the capsule core will release the absorbed heat. The heat dissipated in the air, so that it is quickly transferred to the air, and the capsule core will gradually change from liquid phase to solid phase with the gradual reduction of its body heat, through the cyclic phase transition of the heat-absorbing and heat-storing material and the relatively low heat-dissipating and heat-dissipating material. Excellent heat transfer and heat dissipation performance, so as to quickly cool down the body and improve the heat dissipation performance and reliability of the mobile terminal.

The casing and the mobile terminal provided by the present invention are provided with heat-absorbing and heat-dissipating parts on the body. The heat-absorbing and heat-dissipating parts include mixed materials with functions of heat absorption, heat storage and heat dissipation. The endothermic heat storage material is used to absorb and store the heat on the body, while the heat conduction and heat dissipation material accelerates the absorption and distribution of heat on the body by the endothermic heat storage material, and uses the mixed material to absorb and store the heat on the body. The heat storage and heat dissipation can reduce the temperature of the casing to ensure the normal operation of the mobile terminal with the casing, and at the same time, the temperature of the casing can be prevented from being too high through the functions of heat storage and heat dissipation. The mobile terminal provided by the present invention also reduces the concentrated heat of the rear cover by arranging heat-absorbing and heat-dissipating parts on the back cover, so that the setting of heat-absorbing and heat-dissipating parts is more reasonable.

The mobile terminal provided by the present invention also dissipates heat concentrated on the first area by arranging the heat-absorbing and heat-radiating element on the first area of the inner surface of the casing for carrying the battery, thereby further optimizing the heat-absorbing and heat-radiating element. settings to reduce the impact.

The mobile terminal provided by the present invention can also obtain an organic phase change material by mixing silicon dioxide and polyethylene glycol at a mass ratio of 1:1 to 1:9, which has a suitable phase change temperature and can absorb the heat of the body in time. , to further improve the reliability of the mobile terminal.

The mobile terminal provided by the present invention can better absorb and store heat on the main body by making the heat-absorbing heat-storage material into a microcapsule structure, thereby achieving better heat dissipation performance.

The mobile terminal provided by the present invention also optimizes the processing of the heat-conducting and heat-dissipating materials by limiting the heat-conducting and heat-dissipating materials to graphite materials.

The mobile terminal provided by the present invention also mixes the mixed material with a titanate coupling agent to form a sheet material, and then laminates and connects the sheet material through an adhesive layer to form a heat-absorbing and heat-dissipating part, which not only enables the heat-absorbing and heat-dissipating part to The shape of the main body is used for cutting, and the application of the sheet-shaped heat-absorbing and heat-dissipating parts is more convenient, and it can be glued directly without waiting for it to cool to form a coating.

The mobile terminal provided by the present invention also forms a heat-absorbing heat-dissipating part by mixing a dilution solvent, a bonding solution, and a mixed material, so that the heat-absorbing and heat-dissipating part has direct adhesion, and can be coated on the body without additionally adding an adhesive layer, thereby A heat-absorbing and heat-dissipating element that is more convenient to use is provided.

The mobile terminal provided by the present invention is also molded by directly coating the mixed material on the base, and then setting an adhesive layer on the mixed material to be pasted on the body, without the need for a tablet press for tableting, and the production is relatively simple.

In the mobile terminal provided by the present invention, a protective film is provided on the heat-absorbing and heat-dissipating element to further protect the heat-absorbing and heat-dissipating element, thereby further improving the reliability of the chip and the mobile terminal.

The above are the preferred embodiments of the present invention. It should be pointed out that those skilled in the art can make some improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered as the present invention. protection scope of the invention.

Claims (12)

1. A casing, characterized in that, the casing is a back cover of a mobile terminal, the casing includes a body and a heat-absorbing and heat-radiating element, the heat-absorbing and heat-radiating element is arranged on the body, and the heat-absorbing and heat-radiating element The heat dissipation part includes a mixed material with material properties of heat absorption, heat storage and heat dissipation. The mixed material is composed of a heat absorption heat storage material and a heat conduction and heat dissipation material. The heat is transferred to the heat-absorbing heat-storage material, and the heat-absorbing heat-storage material is used for absorbing and storing heat on the body, and simultaneously storing heat conducted by the heat-conducting and heat-dissipating material. 2. The housing according to claim 1, wherein the inner surface of the body has a first area, the first area is used to carry a battery, and the heat-absorbing and heat-dissipating element is arranged in the first area . 3 . The casing according to claim 2 , wherein a plurality of heat conduction holes are defined in the body. 4 . 4 . The casing according to any one of claims 1 to 3 , wherein the mass ratio of the heat absorbing heat storage material to the heat conduction and heat dissipation material is 1:1. 5. The casing according to claim 4, wherein the heat-absorbing heat storage material comprises silicon dioxide and polyethylene glycol, and the mass ratio of silicon dioxide and polyethylene glycol is 1:1 ~1:9. 6 . The casing according to claim 5 , wherein the heat-absorbing heat-storage material is composed of several microcapsules with the silicon dioxide as the capsule wall and the polyethylene glycol as the capsule core. 7 . 7. The housing according to claim 6, wherein the heat conduction and heat dissipation material is graphite or metal. 8. The housing according to claim 7, wherein the heat-absorbing and heat-dissipating element further comprises a titanate coupling agent and an adhesive layer, and the mixed material is made by mixing the titanate coupling agent The sheet material, the adhesive layer is stacked on the sheet material, and the sheet material is bonded to the body through the adhesive layer. 9. The housing according to claim 7, wherein the heat-absorbing and heat-dissipating element further comprises a dilution solvent and a bonding solution, and the mixed material, the dilution solvent and the bonding solution are mixed and coated on the body. 10. The casing according to claim 7, wherein the heat-absorbing and heat-dissipating element further comprises a base and an adhesive layer, the mixed material is coated on the base, and the adhesive layer is laminated on the base. the mixed material, and the substrate coated with the mixed material is bonded to the main body through the adhesive layer. 11. The casing according to any one of claims 8 to 10, wherein the casing further comprises a protective film, the protective film is arranged on the heat-absorbing and heat-dissipating element, and the protective film is located on away from the side of the body. 12. A mobile terminal, characterized in that it comprises a battery and a casing according to any one of claims 1 to 11, the battery is carried on the body, and the heat-absorbing and cooling element is located between the body and the body. between the batteries.