CN113999621A - Heat dissipation film and electronic device - Google Patents
Heat dissipation film and electronic device Download PDFInfo
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- CN113999621A CN113999621A CN202111281082.8A CN202111281082A CN113999621A CN 113999621 A CN113999621 A CN 113999621A CN 202111281082 A CN202111281082 A CN 202111281082A CN 113999621 A CN113999621 A CN 113999621A
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- heat dissipation
- graphite
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 120
- 239000010410 layer Substances 0.000 claims abstract description 76
- 239000012790 adhesive layer Substances 0.000 claims abstract description 57
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 46
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 46
- 239000010439 graphite Substances 0.000 claims abstract description 46
- 239000011241 protective layer Substances 0.000 claims abstract description 42
- 230000001681 protective effect Effects 0.000 claims abstract description 15
- 239000000853 adhesive Substances 0.000 claims description 26
- 230000001070 adhesive effect Effects 0.000 claims description 26
- 210000002469 basement membrane Anatomy 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 9
- 229920002799 BoPET Polymers 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000006872 improvement Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 229920006267 polyester film Polymers 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Telephone Set Structure (AREA)
Abstract
The embodiment of the application provides a heat dissipation film and electronic equipment. The heat dissipation film is used for electronic equipment, the electronic equipment comprises a battery and a loudspeaker which are arranged adjacently, and the battery comprises a battery body and a battery protection film arranged on the edge of the battery body; the heat dissipation film includes: the first protective layer, the first bonding layer, the graphite heat dissipation layer and the second protective layer are sequentially stacked; the heat dissipation film comprises a first connection area and a second connection area, the first connection area corresponds to the position of the loudspeaker, and the second connection area corresponds to part of the position of the battery; the first protective layer is arranged in the second connecting area so as to shield the area of the first bonding layer, which is positioned in the second connecting area; the first protective layer is provided with a second adhesive layer on one side far away from the first adhesive layer, and the position of the second adhesive layer corresponds to the battery protective film.
Description
Technical Field
The application belongs to the technical field of communication, concretely relates to heat dissipation film and electronic equipment.
Background
Along with the increasingly rich functions of electronic equipment such as mobile phones and tablet computers, the heating problem of the electronic equipment is more and more prominent, and the application of the heat dissipation film in the electronic equipment is more and more extensive. For example, in order to dissipate heat from a speaker of an electronic apparatus, a heat dissipating film is generally provided on the speaker.
In an electronic device, the speaker will typically be located adjacent to the battery. In order to achieve a better heat dissipation effect, the heat dissipation film needs to be attached to the speaker and partially extend above the battery to enlarge the heat dissipation area. In a specific application, in order to avoid the influence of the part of the heat dissipation film extending to the upper side of the battery on the antenna performance, the part of the heat dissipation film extending to the upper side of the battery is required to be fixed on the battery.
However, since the heat dissipation film is fixedly bonded to the battery, pulling the heat dissipation film may cause a risk of damage to the battery. Especially, when the electronic device is impacted or falls off and the battery shakes in the battery compartment, the battery is easily pulled and deformed due to the fact that the heat dissipation film pulls the battery, even, liquid leakage of the battery can be caused to cause fire, and a large safety risk exists.
Disclosure of Invention
The application aims at providing a heat dissipation film and electronic equipment to solve the problem that the battery is pulled easily by the existing heat dissipation film, and even the battery leakage can be caused to cause fire.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, the present application discloses a heat dissipation film for an electronic device, the electronic device including a battery and a speaker disposed adjacently, the battery including a battery body and a battery protection film disposed at an edge of the battery body; the heat dissipation film includes: the first protective layer, the first bonding layer, the graphite heat dissipation layer and the second protective layer are sequentially stacked; the heat dissipation film comprises a first connection area and a second connection area, the first connection area corresponds to the position of the loudspeaker, and the second connection area corresponds to part of the position of the battery;
the first protective layer is arranged in the second connecting area so as to shield the area of the first bonding layer, which is positioned in the second connecting area;
and a second adhesive layer is arranged on one side, far away from the first adhesive layer, of the first protective layer, and the position of the second adhesive layer corresponds to that of the battery protective film.
In a second aspect, the present application also discloses an electronic device, comprising: a frame, a battery, a speaker, and the heat dissipating film of any one of the above; wherein,
the battery and the loudspeaker are arranged in the frame body, and the battery and the loudspeaker are arranged adjacently;
the battery comprises a battery body and a battery protective film arranged on the edge of the battery body;
the first bonding layer that the radiating film is located in the first connecting area is bonded with the loudspeaker, and the second bonding layer that the radiating film is located in the second connecting area is bonded with the battery protection film.
In the embodiment of the application, a first connection area and a second connection area are arranged on the heat dissipation film, the first connection area corresponds to the position of the loudspeaker, and the second connection area corresponds to part of the position of the battery. The first protective layer is connected in the second connection area, so that the first bonding layer is located in the area of the second connection area to be shielded, and the first bonding layer is prevented from being directly bonded with the battery body corresponding to the second connection area. First protective layer is keeping away from one side of first adhesive linkage is provided with the second adhesive linkage, the position of second adhesive linkage with the battery protection film corresponds, the second adhesive linkage can be used for with the battery protection film is connected to fixed radiating film extends to the part of battery top makes the radiating film with keep stable clearance between the battery avoids the radiating film causes the influence to antenna performance. Because the heat dissipation film can pass through on the second adhesive linkage is connected to the battery protection film, avoided directly will the heat dissipation film is fixed dragging of forming the battery body on the battery body, even under the condition that the battery body rocked, still can avoid the heat dissipation film is to dragging deformation and the potential safety hazard that the battery body formed, very big improvement the safety in utilization of heat dissipation film.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
FIG. 2 is an exploded view of a heat dissipation film according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of the structure in which the heat dissipation film shown in FIG. 2 is mounted in the electronic apparatus shown in FIG. 1;
FIG. 4 is a schematic structural view of another heat dissipating film according to an embodiment of the present application;
FIG. 5 is an exploded view of the heat dissipation film shown in FIG. 4;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application;
fig. 7 is a schematic structural view of a heat dissipating film and a speaker according to the present application.
Reference numerals: 11-a first protective layer, 12-a first adhesive layer, 13-a graphite heat dissipation layer, 131-an avoidance part, 132-a first graphite layer, 133-a third adhesive layer, 134-a second graphite layer, 14-a second protective layer, 15-a second adhesive layer, 16-a release film, 20-a frame body, 21-a battery, 211-a battery body, 212-a battery protective film, 22-a loudspeaker, 23-an antenna, A-a first connection region and B-a second connection region.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. 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 application.
The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, a schematic structural diagram of an electronic device according to an embodiment of the present application is shown, referring to fig. 2, one of exploded structural diagrams of a heat dissipation film according to an embodiment of the present application is shown, referring to fig. 3, a schematic structural diagram of the heat dissipation film shown in fig. 2 installed in the electronic device shown in fig. 1 is shown, referring to fig. 4, a schematic structural diagram of another heat dissipation film according to an embodiment of the present application is shown, referring to fig. 5, a schematic exploded structural diagram of the heat dissipation film shown in fig. 4 is shown, referring to fig. 6, a schematic structural diagram of an electronic device according to an embodiment of the present application is shown, and referring to fig. 7, a schematic structural diagram of a heat dissipation film and a speaker according to the present application is shown.
Specifically, the embodiment of the present application provides a heat dissipation film, which may be used in the electronic device shown in fig. 1, where the electronic device may include a battery 21 and a speaker 22 disposed adjacent to each other, and the battery 21 may specifically include a battery body 211 and a battery protection film 212 disposed at an edge of the battery body 211. The heat dissipation film may specifically include: the first protective layer 11, the first adhesive layer 12, the graphite heat dissipation layer 13 and the second protective layer 14 are sequentially stacked; wherein the heat dissipation film may include a first connection region a corresponding to a position of the speaker 22 and a second connection region B corresponding to a partial position of the battery 21; the first protective layer 11 is disposed in the second connection region B to shield a region of the first adhesive layer 12 in the second connection region B; the first protective layer 11 is provided with a second adhesive layer 15 on a side away from the first adhesive layer 12, and the position of the second adhesive layer 15 corresponds to the battery protective film 212.
In the embodiment of the present application, a first connection region a and a second connection region B are disposed on the heat dissipation film, the first connection region a corresponds to a position of the speaker 22, and the second connection region B corresponds to a partial position of the battery 21. The first protection layer 11 is connected to the second connection region B to shield a region of the first adhesive layer 12 located in the second connection region B, so as to prevent the first adhesive layer 12 from directly adhering to the battery 21 corresponding to the second connection region B. First protective layer 11 is provided with second adhesive linkage 15 in the one side of keeping away from first adhesive linkage 12, and the position of second adhesive linkage 15 corresponds with battery protection film 212, and second adhesive linkage 15 can be used for being connected with battery protection film 212, in order to fix the part that the radiating film extends to battery 21 top makes keep stable clearance between radiating film and the battery 21, avoids the radiating film causes the influence to the antenna performance. Because the heat dissipation film can be connected to battery protection film 212 through second adhesive linkage 15 on, avoided directly will the heat dissipation film is fixed and is dragged that forms battery body 211 on battery body 211, even under the condition that battery body 211 rocked, still can avoid the heat dissipation film is to dragging deformation and the potential safety hazard that battery body 211 formed, very big improvement the safety in utilization of heat dissipation film.
Specifically, the electronic device may further include a frame 20, and a battery compartment for accommodating the battery 21 is disposed on the frame 20. The battery 21 may include a battery body 211 and a battery protection film 212, the battery body 211 may be embedded in the battery compartment, and the battery protection film 212 may be embedded between the bottom of the battery body 211 and the battery compartment and at least partially extend to the outside of the battery compartment. The battery protection film 212 may be fixed in the battery compartment to prevent the battery body 211 from shaking in the battery compartment, to protect the battery body 211, and to pull the battery protection film 212 when the battery body 211 needs to be taken out from the battery compartment.
For example, the battery protective Film 212 may be a Polyester Film (PET) Film. The PET film has excellent mechanical properties and good toughness, tensile strength and impact strength, and therefore, when the battery protection film 212 is a PET film, the protection effect of the battery protection film 212 on the battery body 211 can be further improved.
Of course, in practical applications, the battery protection film 212 may also be made of other thermoplastic plastics, and the specific material of the battery protection film 212 in the embodiment of the present application is not limited.
Specifically, the speaker 22 may be disposed adjacent to the battery 21, and since the speaker 22 generates more heat during use, the heat dissipation film according to the embodiment of the present application needs to be disposed on the speaker 22 to achieve the heat dissipation effect. In practical applications, in order to improve the heat dissipation effect, the heat dissipation film is generally required to have a large heat dissipation area, and therefore, the heat dissipation film needs to extend partially above the battery 21.
In the embodiment of the present application, the heat dissipation film may be divided into two regions, wherein a region located above the speaker 22 and connected to the speaker 22 is a first connection region a, and a region extending above the battery 21 and opposite to a portion of the battery 21 is a second connection region B.
Specifically, the heat dissipation film may include a first protective layer 11, a first adhesive layer 12, a graphite heat dissipation layer 13, and a second protective layer 14, which are sequentially stacked. The first protection layer 11 is disposed in the second connection region B to shield the region of the first adhesive layer 12 in the second connection region B, so as to prevent the first adhesive layer 12 from directly adhering to the battery body 211. The first protective layer 11 is provided with a second adhesive layer 15 on a side away from the first adhesive layer 12, and the second adhesive layer 15 is positioned to correspond to the battery protective film 212. The second adhesive layer 15 may be used to connect with the battery protection film 212 to fix the portion of the heat dissipation film extending above the battery 21, so as to maintain a stable gap between the heat dissipation film and the battery 21, and avoid the heat dissipation film from affecting the performance of the antenna. Because the heat dissipation film can be connected to battery protection film 212 through second adhesive linkage 15 on, avoided directly will the heat dissipation film is fixed and is dragged that forms battery body 211 on battery body 211, even under the condition that battery body 211 rocked, still can avoid the heat dissipation film is to dragging deformation and the potential safety hazard that battery body 211 formed, very big improvement the safety in utilization of heat dissipation film.
In practical applications, the graphite heat dissipation layer 13 may be used for dissipating heat, and the first protection layer 11 and the second protection layer 14 may be respectively located on two sides of the graphite heat dissipation layer 13 for protecting the graphite heat dissipation layer 13. The first protective layer 11 and the second protective layer 14 may be PET films. The PET film has excellent mechanical properties and better toughness, tensile strength and impact strength, so that the protective effect of the PET film on the graphite heat dissipation film can be further improved when the first protective layer 11 and the second protective layer 14 are PET films.
Alternatively, the adhesiveness between the second adhesive layer 15 and the battery protective film 212 is lower than the adhesiveness between the first adhesive layer 12 and the speaker 22, that is, the adhesiveness of the first adhesive layer 12 is stronger, and the adhesiveness of the second adhesive layer 15 is weaker. Thus, when the speaker 22 is detached, the heat dissipation film can be detached along with the speaker 22 due to the strong adhesion between the first adhesive layer 12 and the speaker 22. Since the adhesion between the second adhesive layer 15 and the battery protection film 212 is weak, the adhesion between the second adhesive layer 15 and the battery protection film 212 is easily released, and thus, when the speaker 22 is detached, the second adhesive layer 15 on the heat dissipation film is easily detached from the battery protection film 212, thereby improving the convenience of detaching the speaker 22.
Optionally, an antenna 23 is further disposed on the electronic device; the graphite heat dissipation layer 13 is provided with an avoiding portion 131 at a position opposite to the antenna 23, and the avoiding portion 131 can be used for forming a clearance area of the antenna 23, so as to increase the clearance area of the antenna 23 and improve the performance of the antenna 23.
Specifically, the graphite heat dissipation layer 13 may be hollowed out at a position opposite to the antenna 23 to form the relief portion 131.
Optionally, at a position corresponding to the avoiding portion 131, the second protection layer 14 and the first adhesive layer 12 may be directly connected to reduce the thickness of the heat dissipation film at the avoiding portion 131, so as to prevent the battery cover in the electronic device from being lifted up due to an excessively thick lamination of the heat dissipation film, which is beneficial to the layout of devices inside the electronic device.
In an alternative embodiment of the present application, the graphite heat dissipation layer 13 may specifically include: a first graphite layer 132, a third adhesive layer 133, and a second graphite layer 134 which are stacked in this order; the first graphite layer 132 is connected with the first bonding layer 12, and the second graphite layer 134 is connected with the second protective layer 14; the relief portion 131 penetrates the first graphite layer 132, the third adhesive layer 133, and the second graphite layer 134 in this order.
In practical applications, the heat dissipation effect of the graphite heat dissipation layer 13 can be improved by the first graphite layer 132 and the second graphite layer 134 which are stacked. The third bonding layer 133 may then be used to bond the first graphite layer 132 and the second graphite layer 134 to join the first graphite layer 132 and the second graphite layer 134 together. The relief portion 131 may penetrate the first graphite layer 132, the third adhesive layer 133, and the second graphite layer 134 in this order to form a structure penetrating the entire graphite heat dissipation layer 13.
The heat dissipation film further includes: the release film 16 is connected to one side, away from the graphite heat dissipation layer 13, of the second protection layer 14; wherein the shape of the release film 16 is adapted to the shape of the speaker 22.
Specifically, since the shape of the release film 16 is dominant to the shape of the speaker 22, in the case where the heat dissipation film needs to be bonded to the speaker 22, the release film 13 can be aligned with the outer shape of the speaker 22, that is, the heat dissipation film can be positioned on the speaker 22. Therefore, the operation of laser carving a positioning line or arranging a positioning column on the frame body 20 to position the heat dissipation film can be avoided, and the processing technology of the frame body 20 is simplified.
Optionally, the release film 16 is adhered to the second protection layer 14, and the adhesion between the release film 16 and the second protection layer 14 is smaller than the adhesion between the first adhesive layer 12 and the speaker 22. Therefore, after the first adhesive layer 12 of the heat dissipation film is adhered to the loudspeaker 22, since the viscosity between the release film 16 and the second protective layer 14 is smaller than the viscosity between the first adhesive layer 12 and the loudspeaker 22, the release film 16 can be torn off from the second protective layer 14, so that the height of the heat dissipation film is reduced, the battery cover of the electronic equipment is prevented from being jacked up by the heat dissipation film, and the layout of devices inside the electronic equipment is facilitated.
Optionally, the heat dissipation film may further include: the basement membrane, the basement membrane sets up in the one side that graphite heat dissipation layer 13 is kept away from to first protective layer 11, the basement membrane bonds in first adhesive linkage 12 and second adhesive linkage 15. In practical applications, when the heat dissipation film needs to be bonded to the speaker 22, the base film may be peeled off from the first adhesive layer 12 and the second adhesive layer 15, the first adhesive layer 12 may be bonded to the speaker 22, and the second adhesive layer 15 may be bonded to the battery protection film 212.
In summary, the heat dissipation film according to the embodiments of the present application may include at least the following advantages:
in the embodiment of the application, a first connection area and a second connection area are arranged on the heat dissipation film, the first connection area corresponds to the position of the loudspeaker, and the second connection area corresponds to part of the position of the battery. The first protective layer is connected in the second connection area, so that the first bonding layer is located in the area of the second connection area to be shielded, and the first bonding layer is prevented from being directly bonded with the battery body corresponding to the second connection area. First protective layer is keeping away from one side of first adhesive linkage is provided with the second adhesive linkage, the position of second adhesive linkage with the battery protection film corresponds, the second adhesive linkage can be used for with the battery protection film is connected to fixed radiating film extends to the part of battery top makes the radiating film with keep stable clearance between the battery avoids the radiating film causes the influence to antenna performance. Because the heat dissipation film can pass through on the second adhesive linkage is connected to the battery protection film, avoided directly will the heat dissipation film is fixed dragging of forming the battery body on the battery body, even under the condition that the battery body rocked, still can avoid the heat dissipation film is to dragging deformation and the potential safety hazard that the battery body formed, very big improvement the safety in utilization of heat dissipation film.
An embodiment of the present application further provides an electronic device, where the electronic device specifically includes: a frame 20, a battery 21, a speaker 22, and the heat dissipation film according to any of the above embodiments; the battery 21 and the speaker 22 are both disposed in the frame 20, and the battery 21 and the speaker 22 are disposed adjacent to each other; the battery 21 may include a battery body 211 and a battery protective film 212 disposed at an edge of the battery body 211; the first adhesive layer 12 of the heat dissipation film at the first connection region a is adhered to the speaker 22, and the second adhesive layer 15 of the heat dissipation film at the second connection region B is adhered to the battery protection film 212.
In the embodiment of the present application, a first connection region a and a second connection region B are disposed on the heat dissipation film, the first connection region a corresponds to a position of the speaker 22, and the second connection region B corresponds to a partial position of the battery 21. The first protection layer 11 is connected to the second connection region B to shield a region of the first adhesive layer 12 located in the second connection region B, so as to prevent the first adhesive layer 12 from being directly adhered to the battery runner 211 corresponding to the second connection region B. The first protective layer 11 is provided with the second adhesive layer 15 on the side far away from the first adhesive layer 12, the position of the second adhesive layer 15 corresponds to the battery protective film 212, and the second adhesive layer 15 can be used for being connected with the battery protective film 212 to fix the part of the radiating film extending to the upper part of the battery 21, so that a stable gap is kept between the radiating film and the battery 21, and the radiating film is prevented from influencing the performance of the antenna 23. Because the heat dissipation film can be connected to battery protection film 212 through second adhesive linkage 15 on, avoided directly will the heat dissipation film is fixed and is dragged that forms battery body 211 on battery body 211, even under the condition that battery body 211 rocked, still can avoid the heat dissipation film is to dragging deformation and the potential safety hazard that battery body 211 formed, very big improvement the safety in utilization of heat dissipation film.
It should be noted that, in the embodiments of the present application, the structure of the heat dissipation film is the same as that of the heat dissipation films in the foregoing embodiments, and the intended effects are also similar, which are not described herein again.
Specifically, the electronic device may include, but is not limited to, at least one of a mobile phone, a tablet computer, and a wearable device, and the specific type of the electronic device may not be limited in this application.
Optionally, an antenna 23 is further disposed on the frame 20, the graphite heat dissipation layer 13 of the heat dissipation film is provided with a relief portion 131 opposite to the antenna 23, and the relief portion 131 may be used to form a clearance area of the antenna 23, so as to increase the clearance area of the antenna 23 and improve the performance of the antenna 23.
Specifically, the relief portion 131 may be formed by hollowing out a position of the graphite heat dissipation layer 13 facing the antenna 23.
In summary, the electronic device according to the embodiment of the present application may include at least the following advantages:
in the embodiment of the application, a first connection area and a second connection area are arranged on the heat dissipation film, the first connection area corresponds to the position of the loudspeaker, and the second connection area corresponds to part of the position of the battery. The first protective layer is connected in the second connection area, so that the first bonding layer is located in the area of the second connection area to be shielded, and the first bonding layer is prevented from being directly bonded with the battery body corresponding to the second connection area. First protective layer is keeping away from one side of first adhesive linkage is provided with the second adhesive linkage, the position of second adhesive linkage with the battery protection film corresponds, the second adhesive linkage can be used for with the battery protection film is connected to fixed radiating film extends to the part of battery top makes the radiating film with keep stable clearance between the battery avoids the radiating film causes the influence to antenna performance. Because the heat dissipation film can pass through on the second adhesive linkage is connected to the battery protection film, avoided directly will the heat dissipation film is fixed dragging of forming the battery body on the battery body, even under the condition that the battery body rocked, still can avoid the heat dissipation film is to dragging deformation and the potential safety hazard that the battery body formed, very big improvement the safety in utilization of heat dissipation film.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A heat dissipation film for an electronic device, the electronic device including a battery and a speaker disposed adjacently, the battery including a battery body and a battery protection film disposed at an edge of the battery body; characterized in that the heat dissipation film comprises: the first protective layer, the first bonding layer, the graphite heat dissipation layer and the second protective layer are sequentially stacked; wherein,
the heat dissipation film comprises a first connection area and a second connection area, the first connection area corresponds to the position of the loudspeaker, and the second connection area corresponds to part of the position of the battery;
the first protective layer is arranged in the second connecting area so as to shield the area of the first bonding layer, which is positioned in the second connecting area;
and a second adhesive layer is arranged on one side, far away from the first adhesive layer, of the first protective layer, and the position of the second adhesive layer corresponds to that of the battery protective film.
2. The heat dissipating film according to claim 1, wherein an adhesion between the second adhesive layer and the battery protective film is lower than an adhesion between the first adhesive layer and the speaker.
3. The heat dissipating film according to claim 1, wherein an antenna is further provided on the electronic device; the graphite heat dissipation layer is provided with an avoidance part at a position opposite to the antenna, and the avoidance part is used for forming a clearance area of the antenna.
4. The heat dissipating film according to claim 3, wherein the second protective layer is directly connected to the first adhesive layer at a position corresponding to the relief portion.
5. The heat spreading film of claim 3 wherein the graphite heat spreading layer comprises: the first graphite layer, the third bonding layer and the second graphite layer are sequentially stacked; wherein,
the first graphite layer is connected with the first bonding layer, and the second graphite layer is connected with the second protective layer;
the avoiding part penetrates through the first graphite layer, the third bonding layer and the second graphite layer in sequence.
6. The heat dissipating film of claim 1, further comprising: the release film is connected to one side, far away from the graphite heat dissipation layer, of the second protection layer; wherein,
the shape of the release film is matched with that of the loudspeaker.
7. The heat dissipating film according to claim 6, wherein the release film is adhered to the second protective layer, and the adhesion between the release film and the second protective layer is smaller than the adhesion between the first adhesive layer and the speaker.
8. The heat dissipating film of claim 7, further comprising: the basement membrane, the basement membrane set up in one side that the graphite heat dissipation layer was kept away from to first protective layer, the basement membrane bond in first adhesive linkage with the second adhesive linkage.
9. An electronic device, characterized in that the electronic device comprises: a frame, a battery, a speaker, and the heat dissipating film of any one of claims 1 to 8; wherein,
the battery and the loudspeaker are arranged in the frame body, and the battery and the loudspeaker are arranged adjacently;
the battery comprises a battery body and a battery protective film arranged on the edge of the battery body;
the first bonding layer that the radiating film is located in the first connecting area is bonded with the loudspeaker, and the second bonding layer that the radiating film is located in the second connecting area is bonded with the battery protection film.
10. The electronic device according to claim 9, wherein an antenna is further disposed on the frame, and a relief portion is disposed on the graphite heat dissipation layer of the heat dissipation film opposite to the antenna, and is configured to form a clearance area of the antenna.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111281082.8A CN113999621B (en) | 2021-10-29 | 2021-10-29 | Heat dissipation film and electronic device |
| PCT/CN2022/127563 WO2023072119A1 (en) | 2021-10-29 | 2022-10-26 | Heat dissipation film and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111281082.8A CN113999621B (en) | 2021-10-29 | 2021-10-29 | Heat dissipation film and electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113999621A true CN113999621A (en) | 2022-02-01 |
| CN113999621B CN113999621B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111281082.8A Active CN113999621B (en) | 2021-10-29 | 2021-10-29 | Heat dissipation film and electronic device |
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| Country | Link |
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| CN (1) | CN113999621B (en) |
| WO (1) | WO2023072119A1 (en) |
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Also Published As
| Publication number | Publication date |
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| WO2023072119A1 (en) | 2023-05-04 |
| CN113999621B (en) | 2023-06-23 |
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