CN107343375B - Rear shell and mobile terminal - Google Patents
Rear shell and mobile terminal Download PDFInfo
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- CN107343375B CN107343375B CN201610287146.8A CN201610287146A CN107343375B CN 107343375 B CN107343375 B CN 107343375B CN 201610287146 A CN201610287146 A CN 201610287146A CN 107343375 B CN107343375 B CN 107343375B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
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Abstract
The embodiment of the invention discloses a rear shell and a mobile terminal, wherein the rear shell is arranged between a front shell assembly and a rear cover of the mobile terminal, an accommodating space for accommodating components and batteries is formed between the rear shell and the front shell assembly, and the rear shell comprises: a shell body and a heat absorption and dissipation piece; the heat absorption and dissipation piece is arranged on the shell body and comprises a mixed material with material properties of heat absorption, heat storage and heat dissipation functions, and the mixed material consists of a heat absorption and storage material and a heat conduction and dissipation material; the heat conduction and radiation material is used for transferring heat on the shell body to the heat absorption and heat storage material, and the heat absorption and heat storage material is used for absorbing and storing heat on the shell body and storing heat conducted by the heat conduction and radiation material. The invention can effectively reduce the temperature of the shell body in the mobile phone and can avoid the overhigh temperature of the shell of the mobile phone.
Description
Technical Field
The invention relates to the field of electronic equipment, in particular to a rear shell and a mobile terminal.
Background
Along with the development of the mobile phone industry, the mobile phone configuration is higher and higher, the CPU main frequency is higher and higher, so that more and more complex functions can be realized by the mobile phone, but the power consumption of the mobile phone is higher and higher, the heat productivity of the mobile phone is correspondingly increased, if the heat cannot be controlled or transferred, the operation of the mobile phone is slow or even blocked by a heating device in a high-temperature state, and the heat can cause the temperature of a shell of the mobile phone to be too high, so that the problems of scalding hands, ears and the like can be caused.
Disclosure of Invention
The embodiment of the invention provides a rear shell and a mobile terminal, which can effectively reduce the temperature of a shell body in a mobile phone and can avoid overhigh temperature of a shell of the mobile phone.
The embodiment of the invention provides a rear shell, which is arranged between a front shell assembly and a rear cover of a mobile terminal, and an accommodating space for accommodating components and batteries is formed between the rear shell and the front shell assembly, wherein the rear shell comprises: a shell body and a heat absorption and dissipation piece;
the heat absorption and dissipation piece is arranged on the shell body and comprises a mixed material with material properties of heat absorption, heat storage and heat dissipation functions, and the mixed material consists of a heat absorption and storage material and a heat conduction and dissipation material; the heat conduction and radiation material is used for transferring heat on the shell body to the heat absorption and heat storage material, and the heat absorption and heat storage material is used for absorbing and storing the heat on the shell body and storing the heat conducted by the heat conduction and radiation material.
The embodiment of the invention also provides a mobile terminal which comprises the rear shell.
According to the embodiment of the invention, the heat absorption and dissipation member is arranged on the shell body and comprises the mixed material with material properties of heat absorption, heat storage and dissipation functions, the heat conduction and dissipation material in the mixed material can be used for transferring the heat on the shell body to the heat absorption and dissipation material, the heat absorption and dissipation material can be used for absorbing and storing the heat on the shell body and storing the heat conducted by the heat conduction and dissipation material, so that the temperature of the shell body can be reduced, the normal operation of the mobile phone can be ensured, meanwhile, the heat of the shell body can be prevented from being directly transferred to the rear cover, and the over-high temperature of the rear cover can be further avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a rear housing according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a rear housing according to another embodiment of the present invention;
fig. 2a is a schematic structural diagram of a heat-absorbing heat sink according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a rear housing according to another embodiment of the present invention;
fig. 4 is a schematic diagram of a mobile terminal according to an embodiment of the present invention.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a rear shell, which is arranged between a front shell assembly and a rear cover of a mobile terminal, and an accommodating space for accommodating components and batteries is formed between the rear shell and the front shell assembly, wherein the rear shell comprises: the heat-absorbing heat-dissipating device comprises a shell body and a heat-absorbing heat-dissipating piece, wherein the heat-absorbing heat-dissipating piece is arranged on the shell body.
The heat absorption and dissipation member comprises a mixed material with material properties of heat absorption, heat storage and heat dissipation functions, and further the mixed material is formed by mixing a heat conduction and dissipation material and a heat absorption and heat storage material; the heat-conducting heat-dissipating material is used for transferring heat on the shell body to the heat-absorbing heat-storing material, and the heat-absorbing heat-storing material is used for absorbing and storing heat on the shell body and storing heat conducted by the heat-conducting heat-dissipating material; the heat on the shell body comes from the shell body arranged on the shell body. Wherein, according to different forms of the heat absorption heat dissipation member, different setting methods (which may include coating setting, bonding setting, etc.) may be adopted, for example, if the heat absorption heat dissipation member is in a coatable form, the heat absorption heat dissipation member may be coated on the shell; if the heat absorbing and dissipating member is in the form of a sheet, the heat absorbing and dissipating member may be bonded to the case body. The heat of the shell body corresponding to the rear shell can be absorbed and stored in the heat-absorbing and heat-storing material by absorbing and storing heat of the heat-absorbing and heat-storing material contained in the mixed material in the heat-absorbing and heat-storing radiating piece so as to reduce the temperature of the shell body, and the heat of the shell body can be prevented from being directly transferred to the mobile phone shell, namely the rear cover and the front shell, by storing the heat; the heat absorption and the heat dissipation of the heat absorption and storage material to the shell body can be accelerated by conducting heat and heat through the heat conduction and heat dissipation material contained by the mixed material in the heat absorption and dissipation piece, and after the heat absorption and storage material absorbs sufficient heat, the heat in the heat absorption and storage material can be dissipated, so that the cooling effect of the shell body is further enhanced.
Optionally, the heat absorbing and heat storing material contained in the mixed material in the heat absorbing and heat dissipating member may be a phase change material, for example, the heat absorbing and heat storing material absorbs heat gradually, and the texture of the heat absorbing and heat storing material may change from hard to soft to realize the function of storing heat, that is, the texture of the heat absorbing and heat dissipating member may also change from hard to soft according to the increase of the absorbed heat.
According to the embodiment of the invention, the heat absorption and dissipation part is arranged on the shell body and comprises the mixed material with material attributes having heat absorption, heat storage and dissipation functions, the heat conduction and dissipation material in the mixed material can be used for transferring the heat on the shell body to the heat absorption and dissipation material, the heat absorption and dissipation material can be used for absorbing and storing the heat on the rear shell, and the heat conducted by the heat conduction and dissipation material is stored, so that the temperature of the rear shell can be reduced, the normal operation of the mobile phone is ensured, meanwhile, the heat of the shell body can be prevented from being directly transferred to the mobile phone shell, and the overhigh temperature of the mobile phone shell can be further avoided.
Fig. 1 is a schematic structural diagram of a rear housing 100 according to an embodiment of the present invention; the rear case 100 includes a case body 1 and a heat absorbing and dissipating member 2, and the heat absorbing and dissipating member 2 is disposed on the case body 1.
Wherein, the rear shell 100 is used for setting up between the preceding shell subassembly and the back cover of mobile terminal, and forms the accommodation space that is used for holding components and parts and battery between rear shell 100 and the preceding shell subassembly, and when the back cover was opened to mobile terminal promptly, the battery was sheltered by rear shell 100, can not directly see the battery, but directly sees rear shell 100. The material of the rear case 100 may be plastic.
It can be understood that the housing body 1 is plate-shaped, the housing body 1 has a first region D1 and a second region D2, the first region D1 is used for disposing components, the first region D1 is provided with two empty-avoiding grooves 13, the two empty-avoiding grooves 13 are respectively used for disposing a first card socket and a second card socket, the first card socket is used for accommodating a SIM card, the second card socket is used for accommodating a memory card, and the second region D2 is used for disposing a battery. Specifically, casing 1 has the relative a pair of long limit L that sets up, first face 11 towards mobile terminal's circuit board and the second face 12 that is back to with first face 11, casing 1 sets gradually first region D1 and second region D2 along the extending direction of long limit L, first region D1 of first face 11 mainly is used for leaning on various components and parts, the second region D2 of first face 11 is used for leaning on the battery, through carrying out above-mentioned laying with the components and parts of casing 1, casing 1's structure has further been optimized. The first region D1 is provided with clearance holes according to the relationship between the components, so as to optimize the layout of the components. The shell body 1 on the right side of the first area D1 of the shell body 1 is hollowed to form two communicated clearance grooves 13, so that the first card holder and the second card holder can be exposed, a user can conveniently replace a SIM card or a memory card contained therein, and the two clearance grooves 13 are communicated, so that the first card holder and the second card holder can be arranged more intensively, and the structure of the shell body 1 is further optimized. Of course, in other embodiments, the two clearance grooves 13 may also be separately arranged on two sides of the housing body 1 according to the layout requirement of the actual component, that is, the two clearance grooves 13 are not communicated with each other.
It can be understood that, in order to further enhance the heat dissipation performance of the rear housing 100, a plurality of heat dissipation holes may be formed in the housing 1 to accelerate the heat dissipation from the housing 1.
It is understood that the heat absorbing and dissipating member 2 is disposed in the second region D2 of the second surface 12 because the second region D2 is against the battery and the heat is relatively large. Of course, in other embodiments, the heat absorbing and dissipating member 2 may be disposed on the entire outer surface of the case body 1 or on the first region D1.
The heat absorption and dissipation member 2 comprises a mixed material with material properties of heat absorption, heat storage and heat dissipation functions, and the mixed material is formed by mixing a heat conduction and dissipation material and a heat absorption and heat storage material; the heat conduction and radiation material is used for transferring heat on the shell body 1 to the heat absorption and heat storage material, and the heat absorption and heat storage material is used for absorbing and storing heat on the shell body 1 and storing heat conducted by the heat conduction and radiation material. The mass ratio of the heat-conducting heat-dissipating material to the heat-absorbing heat-storing material is 1:1, the heat-absorbing heat-storing material is a material with material properties of heat absorption and heat storage functions, and the heat-conducting heat-dissipating material can be graphite, metal and other heat-conducting heat-dissipating materials.
Further, the heat absorption and heat storage material in the mixed material is a phase change energy storage material composed of polyethylene glycol and silicon dioxide, the mass ratio of the polyethylene glycol to the silicon dioxide is 1:1-9:1, and specifically, which mass ratio can be selected according to requirements. The specific process for manufacturing the heat absorption and heat storage material can be as follows: adding polyethylene glycol into silica sol with a certain concentration, and dripping CaCl after the polyethylene glycol is completely dissolved2The coagulant solution is stirred strongly to carry out gelation reaction and form three-dimensional network structure gel after standing; and (3) drying the gel in an oven at 80 ℃ for 24-28 hours by blowing, and then cooling to room temperature to obtain the mixed material consisting of a plurality of microcapsules taking the gelled silicon dioxide as capsule walls and the emulsified polyethylene glycol as capsule cores. The polyethylene glycol in the core of the microcapsule is a phase change energy storage material, that is, the microcapsule can gradually convert the polyethylene glycol in the core from a solid state to a liquid state by gradually absorbing heat to store the heat, and similarly, when the heat absorbed by the microcapsule is gradually reduced, the polyethylene glycol in the core is also gradually converted from the liquid state to the solid state to dissipate the stored heat, wherein the polyethylene glycol in the liquid state has a low temperature, that is, the absorbed heat is used for phase change, and the process of changing the polyethylene glycol from the liquid state to the solid state is a slow heat dissipation process, so that the heat absorption heat dissipation member 2 comprising a plurality of microcapsules can prevent the absorbed heat from being directly transferred to the mobile phone shell in a short time to cause overhigh temperature of the mobile phone shell. Furthermore, the capsule wall made of the silicon dioxide is arranged, so that the liquid polyethylene glycol can be ensured not to flow out of the microcapsule, and therefore, in the process that the polyethylene glycol in the capsule core is gradually converted from a solid state to a liquid state, the microcapsule is gradually changed from hard to soft, and the texture of the heat absorption and heat storage material is further influenced to be changed from hard to soft. The heat-conducting and heat-dissipating material in the mixed material is graphiteFor example, since the graphite has good thermal conductivity, the graphite can conduct heat on the housing body 1 to the heat-absorbing and heat-storing material for heat storage more quickly, and the graphite has good heat dissipation effect in the direction of X, Y, so that the graphite can also improve the heat dissipation speed of the mixed material while avoiding directly dissipating heat to the mobile phone case opposite to the rear case 100. Before the mixed material is formed by mixing, the heat-conducting heat-dissipating material and the heat-absorbing heat-storing material in a gel state need to be stirred strongly to respectively obtain corresponding powder, namely the mixing process refers to the process of mixing the heat-conducting heat-dissipating material in a powder state and the heat-absorbing heat-storing material in a powder state; the microcapsules in the heat absorption heat storage material are far smaller than the heat absorption heat storage material which is powder, so that the heat absorption heat storage material which is powder obtained after strong stirring still contains a plurality of complete microcapsules, and therefore the heat absorption heat storage material which is powder still has the heat absorption and heat storage functions, and the mixed material formed after mixing still has the heat absorption, heat storage and heat dissipation functions.
Further, the rear case 100 further includes a heat insulation member 3, the heat insulation member 3 is disposed on the side of the heat absorbing and dissipating member 2 and/or the case body 1, and the heat insulation member 3 faces the rear cover of the mobile terminal.
In which the heat insulating member 3 may be further provided on the heat absorbing and radiating member 2 to block heat from being transferred to the rear cover connected to the rear case 100, thereby reducing the temperature of the rear cover. The heat absorbing and dissipating member 2 may be directly disposed on the side of the casing 1 to prevent the heat on the side of the casing 1 from being directly transferred to the casing connected to the casing 1. Specifically, the heat insulating member 3 is made of a material with a low thermal conductivity, the heat insulating member 3 is stacked on the heat absorbing and dissipating member 2, and the size of the heat insulating member 3 may be matched with the size of the casing body 1 and may also be matched with the size of the heat absorbing and dissipating member 2.
Further, the heat absorbing and dissipating member 2 further includes a diluting solvent and a bonding solution (such as methanol xylene, acrylic resin, etc.); the mixed material which is powder is mixed with the diluted solvent bonding solution to form a heat absorption and dissipation coating material, so that the heat absorption and dissipation coating material has adhesive force directly, and the heat absorption and dissipation coating material can be coated on the shell body 1, namely the heat absorption and dissipation piece 2 is the heat absorption and dissipation coating material coated on the shell body 1 and having a certain thickness. When the heat absorption and radiation coating material begins to absorb the heat of the shell body 1, the polyethylene glycol in the heat absorption and radiation coating material is gradually changed from a solid state to a liquid state, and the heat absorption and radiation coating material is gradually changed from hard to soft so as to realize the storage of the heat; when the polyethylene glycol is completely changed into the liquid state, the heat absorption and radiation coating material stops absorbing heat, after the temperature of the shell body 1 is gradually reduced to the preset temperature, the polyethylene glycol is changed from the liquid state to the solid state again so as to radiate the absorbed heat, the heat can be radiated by the components of the heat conduction and radiation material in the heat absorption and radiation coating material at the moment in an accelerated manner, and the heat absorption and radiation coating material is gradually hardened by the soft.
Optionally, the heat absorbing and dissipating member 2 further includes a protective film; the protective film is adhered to the heat absorption and dissipation coating material and is positioned on one side far away from the shell body 1. That is, after the heat-absorbing and heat-dissipating coating material is coated on the case body 1, the protective film is adhesively provided on the exposed portion of the heat-absorbing and heat-dissipating coating material. The protective film can be used for protecting and preventing dust of the heat absorption and heat dissipation coating material, and the protective film can be made of heat conduction and heat dissipation materials such as graphite and the like, so that the heat dissipation speed of the heat absorption and heat dissipation coating material is further improved.
According to the embodiment of the invention, the heat absorption and dissipation member 2 is arranged on the shell body 1, the heat absorption and dissipation member 2 comprises the mixed material with material attributes having heat absorption, heat storage and dissipation functions, the heat conduction and dissipation material in the mixed material can be used for transferring the heat on the shell body 1 to the heat absorption and dissipation material, the heat absorption and dissipation material can be used for absorbing and storing the heat on the shell body 1 and storing the heat transferred by the heat conduction and dissipation material, so that the temperature of the shell body 1 can be reduced, the normal operation of the mobile phone can be ensured, meanwhile, the heat of the shell body 1 can be prevented from being directly transferred to the mobile phone shell, and the overhigh temperature of the mobile phone shell can be.
Referring to fig. 2, a schematic structural diagram of a rear housing 100 according to another embodiment of the present invention is shown; the rear case 100 includes a case body 1 and a heat absorbing and dissipating member 42, and the heat absorbing and dissipating member 42 is disposed on the case body 1. The specific structure of the housing 1 may refer to the embodiment corresponding to fig. 1, and is not described herein again.
The heat absorption heat sink 42 includes a mixture of materials having material properties with heat absorption, heat storage, and heat dissipation functions, and the mixture is composed of a heat absorption heat storage material and a heat conduction heat dissipation material; the heat conduction and radiation material is used for transferring heat on the shell body 1 to the heat absorption and heat storage material, and the heat absorption and heat storage material is used for absorbing and storing heat on the shell body 1 and storing heat conducted by the heat conduction and radiation material. The components of the heat conducting and dissipating material, the components of the heat absorbing and heat storing material and the manufacturing process of the heat absorbing and dissipating member 42 can be referred to the heat conducting and dissipating material and the heat absorbing and heat storing material in the heat absorbing and dissipating member 2 in the corresponding embodiment of fig. 1, and are not described herein again.
Further, the rear case 100 further includes a heat insulating member 3, the heat insulating member 3 is disposed on the side of the heat absorbing and dissipating member 42 and/or the case body 1, and the heat insulating member 3 faces the rear cover of the mobile terminal.
In which the heat insulating member 3 may be further provided on the heat absorbing and radiating member 42 to block heat from being transferred to the rear cover coupled to the rear case 100, thereby reducing the temperature of the rear cover. The heat absorbing and dissipating member 42 may be directly disposed on the side of the casing 1 to block heat on the side of the casing 1 from being directly transferred to the casing connected to the casing 1. Specifically, the heat insulating member 3 is made of a material having a low thermal conductivity, the heat insulating member 3 is stacked on the heat absorbing and dissipating member 42, and the size of the heat insulating member 3 may be matched with the size of the casing body 1 or may be matched with the size of the heat absorbing and dissipating member 42.
Further, the heat absorbing and dissipating member 42 further includes a diluent, a bonding solution (such as methanol xylene, acrylic resin, etc.), a protective film, and a glue layer; the mixed material which is powder is mixed with the diluted solvent bonding solution to form a heat absorption and heat dissipation coating material, so that the heat absorption and heat dissipation coating material directly has adhesive force, the heat absorption and heat dissipation coating material is coated on one side of the protective film, one side of the adhesive layer is bonded with one side of the protective film, coated with the heat absorption and heat dissipation coating material, and the other side of the adhesive layer is bonded with the shell body 1. When the heat absorption and radiation coating material begins to absorb the heat of the shell body 1, the polyethylene glycol in the heat absorption and radiation coating material is gradually changed from a solid state to a liquid state, and the heat absorption and radiation coating material is gradually changed from hard to soft so as to realize the storage of the heat; when the polyethylene glycol is completely changed into the liquid state, the heat absorption and radiation coating material stops absorbing heat, after the temperature of the shell body 1 is gradually reduced to the preset temperature, the polyethylene glycol is changed from the liquid state to the solid state again so as to radiate the absorbed heat, the heat can be radiated by the heat conduction and radiation material in the heat absorption and radiation coating material at the moment in an accelerated manner, and the heat absorption and radiation coating material is gradually hardened by the soft material. The protective film can protect and prevent dust for the heat absorption and heat dissipation coating material, and can be a heat conduction and heat dissipation material such as graphite, so that the heat dissipation speed of the heat absorption and heat dissipation coating material is further improved. Optionally, the heat-absorbing and heat-dissipating coating material is coated on both sides of the protective film, and any one side of the protective film is bonded to one side of the adhesive layer, and the other side of the adhesive layer is bonded to the housing 1.
To further explain the specific structure of the heat absorbing heat dissipating element 42, please refer to fig. 2a, fig. 2a is a schematic structural diagram of the heat absorbing heat dissipating element 42 disposed on the housing 1 according to an embodiment of the present invention, where the heat absorbing heat dissipating element 42 includes: the heat-absorbing and heat-dissipating type heat-dissipating shell comprises a protective film 421, a heat-absorbing and heat-dissipating coating material 422 and a glue layer 423, wherein the heat-absorbing and heat-dissipating coating material 422 is coated on one side of the protective film 421, the heat-absorbing and heat-dissipating coating material 422 is further bonded with one side of the glue layer 423, and the other side of the glue layer 423 can be bonded on the shell body 1, so that the heat-absorbing and heat-dissipating piece 42 is arranged on the shell.
In the embodiment of the invention, the heat absorption and dissipation member 42 is arranged on the shell body 1, the heat absorption and dissipation member 42 comprises the mixed material with the material properties of heat absorption, heat storage and dissipation functions, the heat conduction and dissipation material in the mixed material can be used for transferring the heat on the shell body 1 to the heat absorption and dissipation material, the heat absorption and dissipation material can be used for absorbing and storing the heat on the shell body 1 and storing the heat transferred by the heat conduction and dissipation material, so that the temperature of the shell body 1 can be reduced, the normal operation of the mobile phone can be ensured, meanwhile, the heat of the shell body 1 can be prevented from being directly transferred to the mobile phone shell, and the overhigh temperature of the mobile phone shell can be.
Fig. 3 is a schematic structural diagram of a rear housing 100 according to another embodiment of the present invention; the rear case 100 includes a case body 1 and a heat absorbing and dissipating member 52, and the heat absorbing and dissipating member 52 is disposed on the case body 1.
The specific structure of the housing 1 may refer to the embodiment corresponding to fig. 1, and is not described herein again.
The heat absorbing and dissipating member 52 includes a mixture of materials having material properties with heat absorbing, heat storing, and dissipating functions, and the mixture is composed of a heat absorbing and storing material and a heat conducting and dissipating material; the heat conduction and radiation material is used for transferring heat on the shell body 1 to the heat absorption and heat storage material, and the heat absorption and heat storage material is used for absorbing and storing heat on the shell body 1 and storing heat conducted by the heat conduction and radiation material. The components of the heat-conducting and heat-dissipating material, the components of the heat-absorbing and heat-storing material, and the manufacturing process of the heat-absorbing and heat-storing material in the heat-absorbing and heat-dissipating member 52 can refer to the heat-conducting and heat-absorbing materials and the heat-absorbing and heat-storing materials in the heat-absorbing and heat-dissipating member 2 in the corresponding embodiment of fig. 1, and are not described herein again.
Further, the rear case 100 further includes a heat insulating member 3, the heat insulating member 3 is disposed on the side of the heat absorbing and dissipating member 52 and/or the case body 1, and the heat insulating member 3 faces the rear cover of the mobile terminal.
In which the heat insulating member 3 may be continuously provided on the heat absorbing and radiating member 52 to block heat from being transferred to the rear cover coupled to the rear case 100, thereby reducing the temperature of the rear cover. The heat absorbing and dissipating member 52 may be directly disposed on the side of the casing 1 to block the heat on the side of the casing 1 from being directly transferred to the casing connected to the casing 1. Specifically, the heat insulating member 3 is made of a material having a low thermal conductivity, the heat insulating member 3 is stacked on the heat absorbing and dissipating member 52, and the size of the heat insulating member 3 may be matched with the size of the casing body 1 and may also be matched with the size of the heat absorbing and dissipating member 52.
The heat absorbing heat sink 52 further includes a titanate coupling agent and a glue layer; the mixed material and the titanate coupling agent are mixed to prepare a heat absorption and heat dissipation sheet material, one side of the adhesive layer is adhered to the heat absorption and heat dissipation sheet material, and the other side of the adhesive layer is adhered to the shell body 1. It is understood that the adhesive layer may be a back adhesive, a double-sided adhesive, a release film, or the like. The specific process for manufacturing the heat absorption and dissipation sheet material can be as follows: adding the titanate coupling agent into the mixed material which is powder to obtain the organic composite shape-stabilized phase change material, tabletting the organic composite shape-stabilized phase change material by a tablet machine to obtain a sheet, and cutting the sheet to form the heat-absorbing and heat-dissipating sheet material with a certain shape. When the heat absorption and radiation sheet material starts to absorb the heat of the shell body 1, the polyethylene glycol in the heat absorption and radiation sheet material is gradually changed from a solid state to a liquid state, and the heat absorption and radiation sheet material is gradually changed from hard to soft so as to realize the storage of the heat; when the polyethylene glycol is completely changed into the liquid state, the heat absorption and radiation sheet material stops absorbing heat, after the temperature of the shell body 1 is gradually reduced to the preset temperature, the polyethylene glycol is changed from the liquid state to the solid state again so as to radiate the absorbed heat, the heat can be radiated by the components of the heat conduction and radiation material in the heat absorption and radiation sheet material at the moment in an accelerated manner, and the heat absorption and radiation sheet material is gradually hardened by the soft.
Optionally, the heat absorbing heat sink 52 further includes a protective film; the protective film is adhered to the heat-absorbing and heat-dissipating sheet material and is positioned on one side far away from the shell body 1. Namely, after the heat absorption and radiation sheet material is adhered to the shell body 1, the protective film is adhered to the exposed part of the heat absorption and radiation sheet material. The protective film can be used for protecting and preventing dust of the heat absorption and radiation sheet material, and the protective film can be made of heat conduction and radiation materials such as graphite and the like, so that the heat radiation speed of the heat absorption and radiation sheet material is further improved.
In the embodiment of the invention, the heat absorption and dissipation member 52 is arranged on the shell body 1, the heat absorption and dissipation member 52 comprises the mixed material with the material properties of heat absorption, heat storage and dissipation functions, the heat conduction and dissipation material in the mixed material can be used for transferring the heat on the shell body 1 to the heat absorption and dissipation material, the heat absorption and dissipation material can be used for absorbing and storing the heat on the shell body 1 and storing the heat transferred by the heat conduction and dissipation material, so that the temperature of the shell body 1 can be reduced, the normal operation of the mobile phone can be ensured, meanwhile, the heat of the shell body 1 can be prevented from being directly transferred to the mobile phone shell, and the overhigh temperature of the mobile phone shell can be.
As shown in fig. 4, an embodiment of the present invention further provides a mobile terminal 200, where the mobile terminal 200 includes a front housing assembly 201, a battery 203, a rear housing 204 and a rear cover 205, the rear housing 204 is disposed between the front housing assembly 201 and the rear cover 205, an accommodating space 202 for accommodating components and the battery 203 is formed between the rear housing 204 and the front housing assembly 201, the battery 203 is disposed on the rear housing 204, and both the battery 203 and the rear housing 204 are disposed in the mobile terminal 200. The specific structure of the rear shell 204 and the structural components of the heat absorbing and dissipating member on the rear shell 204 may refer to the rear shell 100 in the corresponding embodiment of any one of fig. 1 to 3, which is not described in detail herein for the rear shell 204.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.
Claims (9)
1. The utility model provides a backshell, its characterized in that, the backshell is used for setting up between mobile terminal's preceding shell subassembly and hou gai, just the backshell with form the accommodation space that is used for holding components and parts and battery between the preceding shell subassembly, the backshell includes: a shell body and a heat absorption and dissipation piece;
the shell body is provided with a plurality of heat dissipation holes, the heat absorption heat dissipation piece is arranged on the shell body and comprises a mixed material with material properties of heat absorption, heat storage and heat dissipation functions, and the mixed material consists of a heat absorption and heat storage material and a heat conduction and heat dissipation material; the heat conduction heat dissipation material is used for with heat transfer on the shell body is for heat absorption heat storage material, heat absorption heat storage material is used for absorbing and storing heat on the shell body is stored simultaneously heat conduction heat dissipation material conduction's heat, wherein, heat absorption heat dissipation piece still includes diluent solvent, bonding solution, mixed material with diluent solvent, bonding solution mix and form heat absorption heat dissipation coating material, heat absorption heat dissipation coating material coats on the shell body in the region including the louvre, heat absorption heat dissipation piece still includes the protection film, the protection film bond set up in on the heat absorption heat dissipation coating material, and be located and keep away from one side of shell body, the protection film is made by graphite material.
2. The rear case according to claim 1, further comprising a heat insulating member disposed on a side edge of the heat-absorbing heat sink and/or the case body, and facing a rear cover of the mobile terminal.
3. The rear shell according to claim 1, wherein the shell body is plate-shaped, the shell body has a first area and a second area, the first area is used for disposing components, the first area is provided with two clearance grooves, the two clearance grooves are respectively used for disposing a first card holder and a second card holder, the first card holder is used for accommodating a SIM card, the second card holder is used for accommodating a memory card, and the second area is used for disposing a battery.
4. The rear housing as claimed in claim 3, wherein the two clearance slots communicate.
5. The back cover of claim 1, wherein a mass ratio between the thermally conductive heat sink material and the heat absorbing heat storage material is 1: 1.
6. The rear shell according to claim 2, wherein the heat absorbing and heat storing material in the mixed material is a phase change heat absorbing and heat storing material consisting of polyethylene glycol and silicon dioxide, and the mass ratio of the polyethylene glycol to the silicon dioxide is 1:1-9: 1; the heat conducting and radiating material is graphite or metal.
7. The back cover of claim 3, wherein the heat absorbing and storing material is comprised of microcapsules having a wall of gelled silica and a core of emulsified polyethylene glycol.
8. The rear housing as claimed in any one of claims 1 to 7, wherein the heat absorbing heat sink further comprises a glue layer;
one side of the adhesive layer is bonded with one side of the protective film, which is coated with the heat absorption and dissipation coating material, and the other side of the adhesive layer is bonded with the shell body.
9. A mobile terminal, characterized in that it comprises a rear shell according to any of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287146.8A CN107343375B (en) | 2016-04-29 | 2016-04-29 | Rear shell and mobile terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287146.8A CN107343375B (en) | 2016-04-29 | 2016-04-29 | Rear shell and mobile terminal |
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| CN107343375A CN107343375A (en) | 2017-11-10 |
| CN107343375B true CN107343375B (en) | 2021-03-12 |
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| CN201610287146.8A Active CN107343375B (en) | 2016-04-29 | 2016-04-29 | Rear shell and mobile terminal |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112687975A (en) * | 2019-10-18 | 2021-04-20 | 北京小米移动软件有限公司 | Electronic equipment and heat dissipation method |
| CN113939121B (en) * | 2021-10-08 | 2023-07-18 | 展讯通信（深圳）有限公司 | Electronic equipment shell with heat dissipation function and heat dissipation control method |
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| CN107343375A (en) | 2017-11-10 |
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