CN209964497U - Electronic equipment and graphite piece subassembly thereof - Google Patents
Electronic equipment and graphite piece subassembly thereof Download PDFInfo
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- CN209964497U CN209964497U CN201920190443.XU CN201920190443U CN209964497U CN 209964497 U CN209964497 U CN 209964497U CN 201920190443 U CN201920190443 U CN 201920190443U CN 209964497 U CN209964497 U CN 209964497U
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Abstract
The application provides an electronic device and a graphite sheet assembly thereof, wherein the graphite sheet assembly comprises a first surface and a second surface which are arranged oppositely; the first surface is pasted with a first adhesive layer, and the first adhesive layer is used for adhering the graphite sheet assembly with the display screen; the second surface is equipped with the recess, the recess is used for setting up the second glue film, the second glue film be used for with graphite flake subassembly bonds with FPC. The electronic equipment and graphite flake subassembly thereof that this application embodiment provided sets up the recess through setting up the graphite flake structure of multilayer, in the position that needs the bonding, paste the double faced adhesive tape in the recess, solved the too big and single-layer graphite flake heat dispersion of whole thickness of electronic equipment poor between the problem of contradiction, this graphite flake subassembly structure has still improved the radiating effect of graphite flake when having reduced electronic equipment thickness.
Description
Technical Field
The invention relates to the technical field of heat dissipation structures of electronic equipment, in particular to electronic equipment and a graphite sheet assembly thereof.
Background
The graphite sheet is a commonly used heat dissipation patch for the display screen of the electronic device, however, because the heat dissipation performance of the multi-layer graphite sheet is more excellent, the structure form of stacking the multi-layer graphite sheets is often used in the heat dissipation scheme of the display screen of the electronic device.
The lightness and thinness of electronic equipment is an important design direction, the thickness of the graphite sheet with a multilayer structure is large, the surfaces on two sides of the graphite sheet are respectively adhered with double-sided adhesive tapes to be adhered with a display screen or other structures, in order to reduce the overall thickness of the electronic equipment, the contradiction between the thickness of the electronic equipment and the heat dissipation performance is compromised, and the scheme in the prior art generally adopts either a single-layer graphite sheet or increases the thickness of the electronic equipment. Of course, neither of these two approaches is a desirable result for users as well as developers.
Disclosure of Invention
In one aspect, the embodiment of the present application provides a graphite sheet assembly for heat dissipation of a display screen, where the graphite sheet assembly includes a first surface and a second surface that are opposite to each other; the first surface is pasted with a first adhesive layer, and the first adhesive layer is used for adhering the graphite sheet assembly with the display screen; the second surface is equipped with the recess, the recess is used for setting up the second glue film, the second glue film be used for with graphite flake subassembly bonds with FPC.
Another aspect of the embodiments of the present application further provides an electronic device, where the electronic device includes a display screen, an FPC, and a graphite sheet assembly; the graphite sheet assembly comprises a first surface and a second surface which are arranged oppositely; the first surface is pasted with a first adhesive layer, and the first adhesive layer is used for adhering the first surface of the graphite sheet assembly with the display screen; the second surface is provided with a groove, a second adhesive layer is arranged in the groove, and the second adhesive layer is used for bonding the second surface of the graphite sheet assembly with the FPC.
The electronic equipment and graphite flake subassembly thereof that this application embodiment provided sets up the recess through setting up the graphite flake structure of multilayer, in the position that needs the bonding, paste the double faced adhesive tape in the recess, solved the too big and single-layer graphite flake heat dispersion of whole thickness of electronic equipment poor between the problem of contradiction, this graphite flake subassembly structure has still improved the radiating effect of graphite flake when having reduced electronic equipment thickness.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic front view of a partial structure of an embodiment of an electronic device according to the present application;
FIG. 2 is a schematic sectional view of the electronic device II-II in the embodiment of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the structure of the graphite sheet assembly of the embodiment of FIG. 1;
FIG. 4 is a schematic structural diagram of another embodiment of a graphite sheet assembly for heat dissipation of a display screen according to the present application;
FIG. 5 is a schematic structural diagram of another embodiment of a graphite sheet assembly for heat dissipation of a display screen according to the present application;
fig. 6 is a schematic overall structure diagram of an embodiment of the electronic device of the present application.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be noted that the following examples are only illustrative of the present invention, and do not limit the scope of the present invention. Likewise, the following examples are only some but not all examples of the present invention, and all other examples obtained by those skilled in the art without any inventive step are within the scope of the present invention.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus that is configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of electronic devices include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.
Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic partial structure front view of an embodiment of an electronic device of the present application, and fig. 2 is a schematic structural cross-sectional view of an electronic device II-II in the embodiment of fig. 1; it should be noted that the electronic device in the present application may include a mobile phone, a tablet computer, a notebook computer, a wearable device, and other terminal devices having a display screen.
The electronic device in this embodiment includes, but is not limited to, the display screen 200, the FPC 300, and the graphite sheet assembly 100. The graphite sheet assembly 100 is used for dissipating heat of the display screen 200, and for adhering and fixing the FPC 300.
Specifically, referring to fig. 3, fig. 3 is a schematic sectional view of the structure of the graphite sheet assembly in the embodiment of fig. 1, wherein the graphite sheet assembly 100 for heat dissipation of a display screen in this embodiment is a single-layer graphite sheet 10. It should be noted that the graphite sheet 10 in the embodiment of the present application may be a graphene sheet or other carbon element structure.
The graphite sheet assembly 100 includes a first surface 101 and a second surface 102 disposed opposite one another. A first adhesive layer 110 is attached to the first surface 101, and the first adhesive layer 110 is used for adhering the graphite sheet assembly 100 to the display screen 200; the second surface 102 is provided with grooves 1021, the grooves 1021 are used for disposing a second adhesive layer 120 (please refer to fig. 2), and the second adhesive layer 120 is used for bonding the graphite sheet assembly 100 and the FPC 300.
Optionally, the first adhesive layer 110 and the second adhesive layer 120 may be both double-sided adhesive tapes. Of course, in some other embodiments, the first adhesive layer 110 and the second adhesive layer 120 may also have other adhesive layer structures. It should be noted that the terms "first", "second" and "third" in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Alternatively, with continued reference to fig. 3, graphite sheet assembly 100 has a thickness T1 at the location where grooves 1201 are formed that is less than thickness T2 at other locations, and the depth D of grooves 1201 may be similar to the thickness (not shown) of second layer of adhesive 120, where similar means that the depth D of grooves 1201 may be the same as, slightly greater than, or slightly less than the thickness of second layer of adhesive 120.
Further, referring to fig. 1 and fig. 2, the area of the second adhesive layer 120 is smaller than or equal to the area of the bottom surface of the groove 1201, so that the second adhesive layer 120 is adhered to the bottom surface of the groove 1201. Thereby ensuring that the second adhesive layer 120 is completely embedded in the groove 1201.
Alternatively, referring to fig. 1, the area of the graphite sheet assembly 100 may be smaller than the area of the display screen 200, and specifically, the graphite sheet assembly 100 may be disposed near the connection position of the display screen 200 and the FPC 300. In this embodiment, the FPC 300 is attached to the display panel 200 from the bottom side of the display panel 200 in fig. 1, so that the graphite sheet assembly 100 is disposed adjacent to the surface of the bottom side of the display panel 200. Of course, in some other embodiments, graphite sheet assembly 100 may also be sized to correspond to the surface area of display screen 200, thereby covering the entire surface of display screen 200.
Further alternatively, with continued reference to fig. 3, the second surface 102 of the graphite sheet assembly 100 is provided with an insulating layer 130, and the insulating layer 130 is used for insulating and blocking the graphite sheet 10 of the graphite sheet assembly 100 from the FPC 300. The insulating layer 130 is disposed on the second surface 102 and in the groove 1021, so as to ensure that the entire side (the side of the second surface) of the graphite sheet assembly 100 can be well insulated from the FPC 300.
The electronic equipment and graphite flake subassembly thereof that this embodiment provided sets up the recess through the position that needs the double faced adhesive tape to bond at the graphite flake subassembly, pastes the double faced adhesive tape in the recess, has solved the too big problem of the whole thickness of electronic equipment, and this graphite flake subassembly structure can reduce electronic equipment's thickness.
Referring to fig. 4, fig. 4 is a schematic structural diagram of another embodiment of a graphite sheet assembly for dissipating heat of a display panel according to the present invention, in which a graphite sheet assembly 100 in this embodiment includes two graphite sheets stacked in sequence, a first graphite sheet 11 and a second graphite sheet 12, and the first graphite sheet 11 and the second graphite sheet 12 are bonded and connected through a bonding layer 1001. The first graphite sheet 11 and the second graphite sheet 12 may have the same thickness and have a uniform structure.
Optionally, one side of the first graphite sheet 11 is bonded to the second graphite sheet 12 through a bonding layer 1001, and the other side is a first surface 101 of the graphite sheet assembly 100, the first surface 101 is attached with a first adhesive layer 110, and the first adhesive layer 110 is used for bonding the graphite sheet assembly 100 to the display screen 200.
Referring to fig. 1 and fig. 2, optionally, one side of the second graphite sheet 12 is bonded to the first graphite sheet 11 by a bonding layer 1001, and the other side is the second surface 102 of the graphite sheet assembly 100, the second surface 102 is provided with a groove 1201, the groove 1201 is used for disposing the second adhesive layer 120, and the second adhesive layer 120 is used for bonding the graphite sheet assembly 100 to the FPC 300. The area of the second adhesive layer 120 is smaller than or equal to the area of the bottom surface (the position where the through hole corresponds to the first graphite sheet 11) of the groove 1201, so that the second adhesive layer 120 is adhered to the first graphite sheet 11 at the bottom surface of the groove 1201. Thereby ensuring that the second adhesive layer 120 is completely embedded in the groove 1201.
The grooves 1201 penetrate through the second graphite sheet 12, the second adhesive layer 120 is attached to the first graphite sheet 11, and the first adhesive layer 110 and the second adhesive layer 120 are respectively attached to two opposite sides of the first graphite sheet 11. Both the first adhesive layer 110 and the second adhesive layer 120 may be double-sided adhesive tapes.
Further alternatively, with continued reference to fig. 4, the second surface 102 of the graphite sheet assembly 100 is further provided with an insulating layer 130, and the insulating layer 130 is used for insulating and blocking the second graphite sheet 12 of the graphite sheet assembly 100 from the FPC 300. The insulating layer 130 is disposed on the second surface 102 and in the groove 1021, so as to ensure that the entire side (the side of the second surface) of the graphite sheet assembly 100 can be well insulated from the FPC 300. It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
The graphite sheet assembly provided by the embodiment sets up a groove (penetrating through one layer of graphite sheets 12) at a position needing to be bonded by setting up a two-layer graphite sheet structure, and pastes a double faced adhesive tape (a second adhesive tape 120) in the groove, so that the problem of contradiction between overlarge integral thickness of the electronic equipment and poor heat dissipation performance of single-layer graphite sheets is solved, and the heat dissipation effect of the graphite sheets is improved while the thickness of the electronic equipment is reduced by the graphite sheet assembly structure.
Further, referring to fig. 5, fig. 5 is a schematic structural diagram of another embodiment of the graphite sheet assembly for dissipating heat of a display panel according to the present application, and the graphite sheet assembly 100 in this embodiment includes three graphite sheets, a first graphite sheet 11, a second graphite sheet 12, and a third graphite sheet 13, which are sequentially stacked. The first graphite sheet 11 and the second graphite sheet 12 and the third graphite sheet 13 can be bonded and connected by the bonding layer 1001. The first graphite sheet 11, the second graphite sheet 12, and the third graphite sheet 13 may have uniform thicknesses.
Optionally, one side of the first graphite sheet 11 is bonded to the second graphite sheet 12 through a bonding layer 1001, and the other side is a first surface 101 of the graphite sheet assembly 100, the first surface 101 is attached with a first adhesive layer 110, and the first adhesive layer 110 is used for bonding the graphite sheet assembly 100 to the display screen 200. The second graphite sheet 12 is sandwiched between the first graphite sheet 11 and the third graphite sheet 13.
Referring to fig. 1 and fig. 2, optionally, one side of the third graphite sheet 13 is bonded to the second graphite sheet 12 by a bonding layer 1001, and the other side is the second surface 102 of the graphite sheet assembly 100, the second surface 102 is provided with a groove 1201, the groove 1201 is used for disposing the second adhesive layer 120, and the second adhesive layer 120 is used for bonding the graphite sheet assembly 100 to the FPC 300. The grooves 1201 penetrate through the third graphite sheet 12 and the second graphite sheet 12, the second adhesive layer 120 is attached to the first graphite sheet 11, and the first adhesive layer 110 and the second adhesive layer 120 are respectively attached to two opposite sides of the first graphite sheet 11. Both the first adhesive layer 110 and the second adhesive layer 120 may be double-sided adhesive tapes.
Optionally, the area of the second adhesive layer 120 is smaller than or equal to the area of the bottom surface (the position where the through hole corresponds to the first graphite sheet 11) of the groove 1201, so that the second adhesive layer 120 adheres to the first graphite sheet 11 at the bottom surface of the groove 1201. Thereby ensuring that the second adhesive layer 120 is completely embedded in the groove 1201.
Further alternatively, with continued reference to fig. 5, the second surface 102 of the graphite sheet assembly 100 is further provided with an insulating layer 130, and the insulating layer 130 is used for insulating and blocking the third graphite sheet 13 of the graphite sheet assembly 100 from the FPC 300. The insulating layer 130 is disposed on the second surface 102 and in the groove 1021, so as to ensure that the entire side (the side of the second surface) of the graphite sheet assembly 100 can be well insulated from the FPC 300. It is noted that the term "comprises" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
In some other embodiments, graphite sheet assembly 100 may further comprise a plurality of graphite sheets arranged in a stack, the grooves extending through one or more of the graphite sheets, and the second adhesive layer adhered to a surface of the graphite sheet at the bottom of the grooves. Further alternatively, graphite sheet assembly 100 comprises N layers of graphite sheets stacked in sequence, with the grooves extending through N-1 of the graphite sheets, and when N equals 4, the grooves can be arranged to extend through 3 graphite sheets, i.e., one layer of graphite sheets remains for adhesion, and no thermal conduction opens (if the grooves extend through all graphite sheets, thermal conduction opens would result). The recess sets up to run through multilayer graphite flake as far as possible, can guarantee to have sufficient degree of depth to make the second glue film can all inlay and locate in the recess.
The graphite sheet subassembly that this application embodiment provided sets up the recess through setting up the multi-layer graphite flake structure in the position that needs the bonding, pastes the double faced adhesive tape in the recess, has solved the too big problem of contradiction between with single-layer graphite flake heat dispersion difference of electronic equipment whole thickness, and this graphite flake subassembly structure has still improved the radiating effect of graphite flake when having reduced electronic equipment thickness.
Further, an electronic device is provided in an embodiment of the present application, please refer to fig. 6, where fig. 6 is a schematic view of an overall structure of an embodiment of the electronic device of the present application, the mobile terminal device may be a mobile phone, a tablet computer, a notebook computer, a desktop computer, a wearable device, and the like, and the embodiment illustrates a mobile phone as an example. The electronic device may include a housing 400, a display 200, an FPC, and the graphite sheet assembly described in the above embodiments. The display panel 200 is connected to the housing 400, and the graphite sheet assembly is attached to the inner surface of the display panel 200 and is adhered to the FPC, so as to refer to the description of the above embodiments about the specific structural features of the graphite sheet assembly, the display panel 200 and the FPC, which will not be described in detail herein.
The electronic equipment that this application embodiment provided, its graphite flake subassembly sets up the recess through setting up the multi-layer graphite flake structure in the position that needs the bonding, pastes the double faced adhesive tape in the recess, has solved the too big problem of contradiction between single-layer graphite flake heat dispersion difference with the whole thickness of electronic equipment, and this graphite flake subassembly structure has still improved the radiating effect of graphite flake when having reduced electronic equipment thickness.
The above description is only a part of the embodiments of the present invention, and not intended to limit the scope of the present invention, and all equivalent devices or equivalent processes performed by the present invention through the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A graphite sheet assembly for heat dissipation of a display screen is characterized by comprising a first surface and a second surface which are arranged oppositely; the first surface is pasted with a first adhesive layer, and the first adhesive layer is used for adhering the graphite sheet assembly with the display screen; the second surface is equipped with the recess, the recess is used for setting up the second glue film, the second glue film be used for with graphite flake subassembly bonds with FPC.
2. A graphite sheet assembly according to claim 1, comprising two or more layers of graphite sheets arranged in a stack, the grooves extending through one or more layers of graphite sheets, the second adhesive layer being adhered to the surface of the graphite sheet at the bottom of the grooves.
3. A graphite sheet assembly according to claim 2, comprising N layers of graphite sheets arranged one on top of the other, the grooves extending through N-1 of the N layers of graphite sheets.
4. A graphite sheet assembly according to claim 2, wherein adjacent graphite sheets are adhesively connected.
5. A graphite sheet assembly according to claim 1, wherein an insulating layer is provided on the second surface of the graphite sheet assembly.
6. The graphite sheet assembly of claim 5, wherein the insulating layer is extendedly disposed on the second surface and within the groove.
7. A graphite sheet assembly according to claim 1, wherein the first glue layer and the second glue layer are both double-sided glue.
8. An electronic device, comprising a display screen, an FPC, and a graphite sheet assembly; the graphite sheet assembly comprises a first surface and a second surface which are arranged oppositely; the first surface is pasted with a first adhesive layer, and the first adhesive layer is used for adhering the first surface of the graphite sheet assembly with the display screen; the second surface is provided with a groove, a second adhesive layer is arranged in the groove, and the second adhesive layer is used for bonding the second surface of the graphite sheet assembly with the FPC.
9. The electronic device of claim 8, wherein the area of the second adhesive layer is smaller than or equal to the area of the bottom surface of the groove, so that the second adhesive layer is adhered to the bottom surface of the groove.
10. The electronic device of claim 8, wherein the area of the graphite sheet assembly is smaller than the area of the display screen, and the graphite sheet assembly is disposed near a connection location of the display screen and the FPC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920190443.XU CN209964497U (en) | 2019-02-11 | 2019-02-11 | Electronic equipment and graphite piece subassembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920190443.XU CN209964497U (en) | 2019-02-11 | 2019-02-11 | Electronic equipment and graphite piece subassembly thereof |
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| CN209964497U true CN209964497U (en) | 2020-01-17 |
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| CN201920190443.XU Active CN209964497U (en) | 2019-02-11 | 2019-02-11 | Electronic equipment and graphite piece subassembly thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023015999A1 (en) * | 2021-08-11 | 2023-02-16 | 荣耀终端有限公司 | Heat equalizing plate and electronic device |
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2019
- 2019-02-11 CN CN201920190443.XU patent/CN209964497U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023015999A1 (en) * | 2021-08-11 | 2023-02-16 | 荣耀终端有限公司 | Heat equalizing plate and electronic device |
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