CN109496117A - A kind of graphite heat conducting and heat radiating fin - Google Patents
A kind of graphite heat conducting and heat radiating fin Download PDFInfo
- Publication number
- CN109496117A CN109496117A CN201910000311.0A CN201910000311A CN109496117A CN 109496117 A CN109496117 A CN 109496117A CN 201910000311 A CN201910000311 A CN 201910000311A CN 109496117 A CN109496117 A CN 109496117A
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- Prior art keywords
- heat
- graphite
- metal layer
- heat dissipation
- cavity
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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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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a kind of graphite heat conducting and heat radiating fins of graphite heat radiation fin technical field, including the foam that radiates, graphite flake is nested at the top of the heat dissipation foam, the top adhesive of the heat dissipation foam has upper metal layer, the bottom adhesive of the heat dissipation foam has lower metal layer, the bottom adhesive of the lower metal layer has off-style paper layer, the top adhesive of the upper metal layer has heat-conducting glue layer, the top adhesive of the heat-conducting glue layer has partition, the inner cavity of the partition offers longitudinally through passage of heat, the top adhesive of the partition has heat sink, the bottom of the heat sink offers the heat dissipation cavity being connected to passage of heat, heating column is longitudinally nested in the heat dissipation cavity, the top adhesive of the heat sink has mylar, the top adhesive of the mylar has antistatic coating, it can be with while providing protection to graphite flake The residence time for shortening heat, improve the lost efficiency of heat.
Description
Technical field
The present invention relates to graphite heat radiation fin technical field, specially a kind of graphite heat conducting and heat radiating fin.
Background technique
Graphite heat radiation fin is the preferred material for solving mobile phone heat dissipation problem at present, but in the prior art, graphite flake is dissipating
Limited efficacy when hot, and if warpage occurs for graphite heat radiation fin, the surface that will lead to partial component so is not pasted
Graphite heat radiation fin cannot timely and effectively be dispersed by graphite heat radiation fin export so as to cause the heat of the partial component, heat
Constantly accumulation certainly will will affect the service performance of mobile phone part, for this purpose, it is proposed that a kind of graphite heat conducting and heat radiating fin.
Summary of the invention
The purpose of the present invention is to provide a kind of graphite heat conducting and heat radiating fins, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme: a kind of graphite heat conducting and heat radiating fin, including heat dissipation are steeped
Cotton, the heat dissipation foam top are nested graphite flake, and the top adhesive of the heat dissipation foam has upper metal layer, the heat dissipation
The bottom adhesive of foam has lower metal layer, and the bottom adhesive of the lower metal layer has off-style paper layer, the top of the upper metal layer
It is bonded with heat-conducting glue layer, the top adhesive of the heat-conducting glue layer has partition, and the inner cavity of the partition offers longitudinally through lead
The passage of heat, the top adhesive of the partition have heat sink, and the bottom of the heat sink offers the heat dissipation being connected to passage of heat
Cavity is longitudinally nested heating column in the heat dissipation cavity, and the top adhesive of the heat sink has mylar, described poly-
The top adhesive of membrane of lipoprotein has antistatic coating.
Preferably, the accommodation groove matched with graphite flake is offered at the top of the heat dissipation foam, and the graphite flake
Top is provided with round boss, and the bottom of metal layer is resisted against at the top of boss, and the cavity between boss and accommodation groove is set
It is set to heat collector cavity.
Preferably, the passage of heat is uniformly opened up along the length direction of partition, and on the inner wall of the passage of heat
It is coated with welding resistance green oil layer.
Preferably, the heat dissipation cavity is uniformly opened up along the length direction of the bottom of heat sink, and single group heat dissipation cavity
It is connected with two groups of passage of heat.
Preferably, the top of the heating column is resisted against the inner cavity top of heat dissipation cavity, the bottom of the heating column against
At the top of partition.
Preferably, the partition and heat sink are copper ink alkene plate of material, and the upper metal layer and lower metal layer are copper
Thermally conductive sheet.
Compared with prior art, the beneficial effects of the present invention are: inventive structure design rationally, graphite flake is nested in scattered
On thermal cotton, it can prevent the graphite powder of graphite flake and graphite particle from falling off, to avoid short circuit and the electrical property to wiring board
It influences, while heat conduction can be carried out by the foam that radiates, in addition, upper metal layer and lower metal layer are protected to graphite flake
It can play the role of conducting heat while shield, improve heating conduction, and can quickly carry out heat by passage of heat
Transmitting carries out absorption transmitting by the heating column in heat dissipation cavity, is most discharged afterwards through heat sink, when can shorten the delay of heat
Between, improve the lost efficiency of heat.
Detailed description of the invention
Fig. 1 is overall structure of the present invention.
In figure: 1 heat dissipation foam, 2 graphite flakes, metal layer, 4 lower metal layers, 5 off-style paper layers, 6 heat collector cavities, 7 heat-conducting glues on 3
Layer, 8 partitions, 9 passage of heat, 10 heat sinks, 11 heat dissipation cavitys, 12 heating columns, 13 mylars, 14 antistatic coatings.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, the present invention provides a kind of technical solution: a kind of graphite heat conducting and heat radiating fin, including heat dissipation foam 1 dissipate
Graphite flake 2 is nested at the top of thermal cotton 1, the top adhesive of heat dissipation foam 1 has upper metal layer 3, and the bottom of heat dissipation foam 1 is viscous
Lower metal layer 4 is had, the bottom adhesive of lower metal layer 4 has off-style paper layer 5, and the top adhesive of upper metal layer 3 has heat-conducting glue layer 7,
The top adhesive of heat-conducting glue layer 7 has partition 8, and the inner cavity of partition 8 offers longitudinally through passage of heat 9, and the top of partition 8 is viscous
Heat sink 10 is had, the bottom of heat sink 10 offers the heat dissipation cavity 11 being connected to passage of heat 9, longitudinal in the cavity 11 that radiates
Be nested heating column 12, the top adhesive of heat sink 10 has a mylar 13, the top adhesive of mylar 13 have resist it is quiet
Electrocoat 14.
Wherein, the top of heat dissipation foam 1 offers the accommodation groove matched with graphite flake 2, and the top setting of graphite flake 2
There is round boss, and be resisted against the bottom of metal layer 3 at the top of boss, the cavity between boss and accommodation groove is set as thermal-arrest
Graphite flake 2 can be nested on heat dissipation foam 1 by this set, can prevent the graphite powder and graphite of graphite flake 2 by chamber 6
Abscission, to avoid short circuit and be influenced on the electrical property of wiring board；
Passage of heat 9 is uniformly opened up along the length direction of partition 8, and welding resistance green oil layer is coated on the inner wall of passage of heat 9,
Passage of heat 9 can be improved for the conduction efficiency of heat by this set, while also can protect the inner wall of passage of heat 9
It is influenced from high temperature；
Heat dissipation cavity 11 uniformly opened up along the length direction of the bottom of heat sink 10, and single group heat dissipation cavity 11 and two groups it is thermally conductive
Channel 9 is connected, and the cavity 11 that radiates can be cooperated to the use of passage of heat 9 by this set, can pass through passage of heat 9
Heat is quickly transmitted in heat dissipation cavity 11, is scattered and disappeared convenient for the conduction of heat with timely；
The top of heating column 12 is resisted against the inner cavity top of heat dissipation cavity 11, and the bottom of heating column 12 is resisted against the top of partition 8,
Quickly the heat in heat dissipation cavity 11 can be conducted by heating column 12 by this set, be easy to implement the fast of heat
Speed is scattered and disappeared；
Partition 8 and heat sink 10 are copper ink alkene plate of material, and upper metal layer 3 and lower metal layer 4 are copper thermally conductive sheet, by this
The conduction efficiency that can be improved to heat is set, the conduction time of heat is accelerated.
Embodiment: by the way that graphite flake 2 to be nested on heat dissipation foam 1, the graphite powder and graphite particle of graphite flake 2 can be prevented
It falls off, to avoid short circuit and influence on the electrical property of wiring board, while heat conduction can be carried out by the foam 1 that radiates,
In addition, upper metal layer 3 and lower metal layer 4 can play the role of conducting heat while protecting graphite flake 2, improve
Heating conduction, and heat buffering is carried out by heat collector cavity 6, then through upper metal layer 3 be conducted to heat-conducting glue layer 7, then pass through
Heat quickly can be transferred in heat dissipation cavity 11 by the passage of heat 9 on partition 8, pass through the heating column in heat dissipation cavity 11
12 carry out absorption transmitting, are most discharged afterwards through heat sink 10, can shorten the residence time of heat, improve the lost effect of heat
Rate, while protection can be provided overall structure by mylar 13, and absorption can be reduced by antistatic coating 14
The probability of dust and impurities.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of graphite heat conducting and heat radiating fin, it is characterised in that: including radiating foam (1), nesting is set at the top of the heat dissipation foam (1)
It is equipped with graphite flake (2), the top adhesive of heat dissipation foam (1) has upper metal layer (3), and the bottom of heat dissipation foam (1) is viscous
It has lower metal layer (4), the bottom adhesive of the lower metal layer (4) has off-style paper layer (5), the top of the upper metal layer (3)
It is bonded with heat-conducting glue layer (7), the top adhesive of the heat-conducting glue layer (7) has partition (8), and the inner cavity of the partition (8) offers
The top adhesive of longitudinally through passage of heat (9), the partition (8) has heat sink (10), the bottom of the heat sink (10)
The heat dissipation cavity (11) being connected to passage of heat (9) is offered, is longitudinally nested heating column in the heat dissipation cavity (11)
(12), the top adhesive of the heat sink (10) has mylar (13), the top adhesive of the mylar (13) have resist it is quiet
Electrocoat (14).
2. a kind of graphite heat conducting and heat radiating fin according to claim 1, it is characterised in that: the top of heat dissipation foam (1)
The accommodation groove matched with graphite flake (2) is offered, and is provided with round boss at the top of the graphite flake (2), and boss
Top is resisted against the bottom of metal layer (3), and the cavity between boss and accommodation groove is set as heat collector cavity (6).
3. a kind of graphite heat conducting and heat radiating fin according to claim 1, it is characterised in that: the passage of heat (9) along every
The length direction of plate (8) uniformly opens up, and is coated with welding resistance green oil layer on the inner wall of the passage of heat (9).
4. a kind of graphite heat conducting and heat radiating fin according to claim 1 or 3, it is characterised in that: heat dissipation cavity (11) edge
The length direction of the bottom of heat sink (10) uniformly open up, and single group heat dissipation cavity (11) is connected with two groups of passage of heat (9)
It is logical.
5. a kind of graphite heat conducting and heat radiating fin according to claim 1, it is characterised in that: the top of the heating column (12) is supported
The inner cavity top of heat dissipation cavity (11) is leaned against, the bottom of the heating column (12) is resisted against the top of partition (8).
6. a kind of graphite heat conducting and heat radiating fin according to claim 1, it is characterised in that: the partition (8) and heat sink
It (10) is copper ink alkene plate of material, the upper metal layer (3) and lower metal layer (4) are copper thermally conductive sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910000311.0A CN109496117B (en) | 2019-01-02 | 2019-01-02 | Graphite heat conduction radiating fin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910000311.0A CN109496117B (en) | 2019-01-02 | 2019-01-02 | Graphite heat conduction radiating fin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109496117A true CN109496117A (en) | 2019-03-19 |
| CN109496117B CN109496117B (en) | 2023-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910000311.0A Active CN109496117B (en) | 2019-01-02 | 2019-01-02 | Graphite heat conduction radiating fin |
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| CN (1) | CN109496117B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204022739U (en) * | 2014-07-01 | 2014-12-17 | 斯迪克新型材料（江苏）有限公司 | Anti-electrostatic heat radiation Pressuresensitive Tape |
| CN204031701U (en) * | 2014-07-01 | 2014-12-17 | 斯迪克新型材料（江苏）有限公司 | Composite graphite heat conducting radiation fins |
| CN208127195U (en) * | 2018-04-11 | 2018-11-20 | 东莞市速传电子材料有限公司 | A kind of thermally conductive phase transformation gasket of high intensity |
| CN208308773U (en) * | 2018-04-11 | 2019-01-01 | 东莞市速传电子材料有限公司 | A kind of high performance heat conductive isolation sheet |
| CN209659847U (en) * | 2019-01-02 | 2019-11-19 | 苏州沛德导热材料有限公司 | A kind of graphite heat conducting and heat radiating fin |
-
2019
- 2019-01-02 CN CN201910000311.0A patent/CN109496117B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204022739U (en) * | 2014-07-01 | 2014-12-17 | 斯迪克新型材料（江苏）有限公司 | Anti-electrostatic heat radiation Pressuresensitive Tape |
| CN204031701U (en) * | 2014-07-01 | 2014-12-17 | 斯迪克新型材料（江苏）有限公司 | Composite graphite heat conducting radiation fins |
| CN208127195U (en) * | 2018-04-11 | 2018-11-20 | 东莞市速传电子材料有限公司 | A kind of thermally conductive phase transformation gasket of high intensity |
| CN208308773U (en) * | 2018-04-11 | 2019-01-01 | 东莞市速传电子材料有限公司 | A kind of high performance heat conductive isolation sheet |
| CN209659847U (en) * | 2019-01-02 | 2019-11-19 | 苏州沛德导热材料有限公司 | A kind of graphite heat conducting and heat radiating fin |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109496117B (en) | 2023-05-26 |
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Effective date of registration: 20220322 Address after: 414000 Innovation Industrial Park, Dongxing North Road, Tianyue new area, Pingjiang County, Yueyang City, Hunan Province Applicant after: Hunan Peide New Material Co.,Ltd. Address before: 215000 units 301 and 302, building B, No. 5, Xinghan street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Applicant before: SUZHOU PADNIC THERMAL CONDUCTIVE MATERIAL Co.,Ltd. |
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