CN210226070U - Radiating element capable of extending in air for radiating and radiator - Google Patents
Radiating element capable of extending in air for radiating and radiator Download PDFInfo
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- CN210226070U CN210226070U CN201920931604.6U CN201920931604U CN210226070U CN 210226070 U CN210226070 U CN 210226070U CN 201920931604 U CN201920931604 U CN 201920931604U CN 210226070 U CN210226070 U CN 210226070U
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- heat dissipation
- fin
- heat
- radiating
- extend
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 57
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000002184 metal Substances 0.000 claims abstract description 17
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 4
- 229910045601 alloy Inorganic materials 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- BIJOYKCOMBZXAE-UHFFFAOYSA-N chromium iron nickel Chemical compound [Cr].[Fe].[Ni] BIJOYKCOMBZXAE-UHFFFAOYSA-N 0.000 claims description 3
- UTICYDQJEHVLJZ-UHFFFAOYSA-N copper manganese nickel Chemical compound [Mn].[Ni].[Cu] UTICYDQJEHVLJZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims description 3
- 229910000623 nickel–chromium alloy Inorganic materials 0.000 claims description 3
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000863 Ferronickel Inorganic materials 0.000 description 2
- 229910001374 Invar Inorganic materials 0.000 description 2
- 230000002547 anomalous effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000788 chromium alloy Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
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Abstract
The utility model provides a can extend in radiating element in air and radiator belongs to the heat dissipation device field. The utility model discloses can extend in radiating element in air includes the fin and the heat dissipation wing that links to each other with the fin, the fin is including being used for fixing the stiff end of fin with be used for with the extension end of heat dissipation wing fixed connection, the quantity that can extend the end is more than 1, parallel arrangement, every can extend and serve and be equipped with a heat dissipation wing, the fin is by the metal layering setting of the coefficient of expansion difference more than 2 layers, the metal sets gradually according to the coefficient of expansion size. The utility model has the advantages that: effectively increase heat radiating area, the radiating effect is good.
Description
Technical Field
The present invention relates to a heat dissipation structure, and more particularly to a heat dissipation device that can be extended to dissipate heat in the air, and a heat sink that includes the heat dissipation device that can be extended to dissipate heat in the air.
Background
The structure of the existing heat sink cannot be changed, and in order to increase the heat dissipation effect, the commonly adopted method is as follows: the radiating holes are increased, or radiating strips are made on the surface, and the radiating area is increased as much as possible. The structure is limited to the body structure, the heat dissipation area cannot be increased without limit, and the heat dissipation effect is limited. In addition, the heat dissipation strips are generally metal sheets, and are easily distorted and deformed by external force during use or transportation, so that the appearance is affected.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a radiating element and a radiator which have good radiating effect and can be extended to radiate in the air.
The utility model discloses can extend in radiating element in air includes the fin and the heat dissipation wing that links to each other with the fin, the fin is including being used for fixing the stiff end of fin with be used for with the extension end of heat dissipation wing fixed connection, the quantity that can extend the end is more than 1, parallel arrangement, every can extend and serve and be equipped with a heat dissipation wing, the fin is by the metal layering setting of the coefficient of expansion difference more than 2 layers, the metal sets gradually according to the coefficient of expansion size.
The utility model discloses make further improvement, the fin is the bimetallic strip of two-layer setting, including the great initiative layer of coefficient of expansion and the less passive layer of coefficient of expansion, the heat dissipation wing sets up on passive layer side.
The utility model discloses make further improvement, the material on passive layer is including being close to zero coefficient of expansion's after being heated metal or metal alloy.
The utility model discloses make further improvement, the material of passive layer is the ferronickel, and wherein, the content of ferronickel is Ni39Fe, Ni40Fe or Ni45 Fe.
The utility model discloses make further improvement, the material on initiative layer includes iron-nickel-chromium alloy, manganese-copper-nickel alloy.
The utility model discloses make further improvement, the heat dissipation wing includes the bottom plate and a plurality of thin metal fin of setting perpendicularly on the bottom plate with the end butt joint that can extend.
The utility model also provides a contain can extend in radiating element's in the air radiator, including the radiator body, be equipped with on the radiator body with the same, be used for holding the recess of single heat dissipation wing of heat dissipation wing quantity, one side that coefficient of expansion is big is close to the recess bottom and sets up, the stiff end and the radiator body fixed connection of fin, when being heated, the heat dissipation wing can stretch out in the recess under the deformation of can stretching the end, after the heat runs off, can stretch out the end and resume deformation, the heat dissipation wing is received and is included in the recess.
The utility model discloses make further improvement, the fin is still including setting up at the stiff end and can extend the connecting portion of end, the stiff end of fin, connecting portion and can extend the whole shape of end are the Z type, be equipped with the through-hole that a plurality of supplied connecting portion to run through on the radiator body, the stiff end is fixed at the radiator body back, and is in with the setting of the heat dissipation wing that can extend fixed connection in the positive recess of radiator body, and the laminating recess bottom sets up.
The utility model discloses make further improvement, the recess bottom is equipped with the louvre, near the louvre still is equipped with radiator fan near the radiator body back.
Compared with the prior art, the beneficial effects of the utility model are that: when the temperature of the element rises, the contacted heat dissipation element is bent towards the surface with small deformation under the condition of thermal deformation, and the heat dissipation fin is stretched and exposed in the air, so that the heat is more easily dissipated; along with the loss of heat, the radiating fin recovers to the original shape, and the radiating fin is forced to retract into the radiator so as to avoid influencing the appearance, and meanwhile, the radiating element is protected from being touched by the outside to cause poor appearance or distortion.
Drawings
FIG. 1 is a schematic view of a heat dissipation element of the present invention;
FIG. 2 is a schematic side view of a heat dissipation device;
FIG. 3 is a schematic view illustrating deformation of a heat dissipation element caused by heating;
FIG. 4 is a schematic view of a heat sink;
fig. 5 is a schematic view of a back structure of a heat sink.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 to 3, the heat dissipating component 1 of the present invention, which can be extended to dissipate heat in the air, comprises a heat dissipating fin 11 and a heat dissipating fin 12 connected to the heat dissipating fin 11, the heat sink 11 includes a fixed end 111 for fixing the heat sink 11 and an extendable end 113 for fixedly connecting with the heat dissipating fin 12, a connecting part 112 is further provided between the extendable end 113 and the fixed end 111, the fixed end of the present example is provided with fixing bolt holes 101, the number of the connecting parts 112 of the present example is more than 1, are parallelly arranged on one side of the fixed end 111 at equal intervals, the other end of each connecting part 112 is respectively connected with an extensible end 113, the other end of each extensible end 113 is respectively connected with a radiating fin 12 through two welding points in a butt-welding manner, the radiating fins 11 are formed by layering more than 2 layers of metals with different expansion coefficients, and the metals are sequentially arranged according to the expansion coefficients.
The heat sink 11 of this embodiment is a two-layer bimetal, that is, a metal sheet rolled into a whole by two different materials, including an active layer with a large expansion coefficient and a passive layer with a small expansion coefficient, the bimetal is also called a thermal bimetal, wherein the active layer with a high expansion coefficient: the lower expansion coefficient is called the passive layer. Because the thermal expansion coefficients of the component layers are different, when the temperature changes, the deformation of the active layer is larger than that of the passive layer, so that the whole bimetallic strip can bend towards one side of the passive layer, the curvature of the material is changed, and the deformation is generated. The heat dissipation fins 12 of this example are provided on the passive layer side. Thereby bending the heat sink 11 toward the heat dissipation fins 12 when heated.
When 2 or more layers of metals with different thermal expansion coefficients in the bimetallic strip are heated, bending can occur. A block-shaped thermal bimetallic strip can be bent into an arch shell shape when heated, and a narrow thermal bimetallic strip can be bent into an arc shape with a certain radius when heated. The higher the temperature, the faster the speed, this characteristic is called proportional time-limited characteristic. Therefore, in order to prevent the heat sink 11 from overheating in a large area during welding, the present embodiment uses an energy storage spot welder to perform spot welding with a large current and a short time, and to prevent the occurrence of a false welding. The connecting portion 112 and the stretchable end 113 in this example are formed in a narrow and long shape and are connected to the heat dissipating fin 12 by spot welding.
The passive layer of this example, because of its very low coefficient of expansion, which is significantly reduced at magnetic temperatures, i.e. around the curie point, so-called anomalous thermal expansion (negative anomalous), which allows to obtain very low or even near zero coefficients of expansion in a wide temperature range around room temperature, is commonly known as a nickel-iron alloy, such as the nickel-iron alloy consisting of 64% Fe and 36% Ni, in a face-to-center and square structure, known by the name Dilaton 36/4J36, whose chinese name is invar, whose english name is invar, meaning constant in volume, moreover, it is also possible to use Ni39Fe, Ni40Fe, Ni45 Fe.
The active layer has a high thermal expansion coefficient and a high melting point, and has good combination with the passive layer. Materials with these characteristics are common: iron-nickel-chromium alloys, manganese-copper-nickel alloys, and the like, such as: high expansion alloys such as Mn72Cu18Ni10, Ni22Cr3 and Ni25Cr 8.
The heat dissipating fin 12 of this example includes a base plate 121 abutting the stretchable portion 113 and a plurality of thin metal heat dissipating fins 122 vertically arranged on the base plate 121. The thin metal radiating fins are preferably made of radiating copper sheets, and the radiating effect is good. A plurality of heat dissipation copper sheets are arranged on each heat dissipation fin 12 in parallel, so that the heat dissipation area is effectively increased.
As shown in fig. 4 and 5, the utility model provides a contain can extend in radiating element 1's in the air radiator, including radiator body 2, be equipped with on radiator body 2 with radiating wing 12 quantity the same, be used for holding single radiating wing 12's recess 21, the setting of one side laminating recess 21 bottom that coefficient of expansion is big, stiff end 111 and radiator body 2 fixed connection of fin 11 are heated, radiating wing 12 can stretch out in recess 21 under can stretching the deformation of end 113, after the heat loss, can extend end 113 and resume deformation, radiating wing 21 takes in the recess.
Preferably, the fixed end 111, the connecting portion 112 and the extendable end 113 of the heat sink 11 in this embodiment are Z-shaped, the heat sink body 2 is provided with a plurality of through holes for the connecting portion 112 to pass through, the fixed end 111 is fixed on the back surface of the heat sink body 2 by bolts 201, the connecting portion 112 passes through the through holes and extends to the front surface of the heat sink body 1, and the heat dissipating fins 12 fixedly connected to the extendable end 113 are disposed in the grooves 21 on the front surface of the heat sink body 2 and attached to the bottoms of the grooves 21. When being heated and deformed, the fixed end 111 is completely attached to the radiator body 2, so that deformation cannot occur, and the radiating fins 11 extending to the front face drive the radiating fins 12 to extend towards the principle groove direction through deformation.
Preferably, in order to further improve the heat dissipation effect, heat dissipation holes are further formed at the bottom of the groove 21, and a heat dissipation fan is further disposed on the back surface of the heat sink body 2 near the heat dissipation holes.
The heat sink of this example can be mounted on a side wall of a device requiring heat dissipation, such as a computer host. The working principle of the embodiment is as follows:
when in a working state: the radiator is fixed on the surface of corresponding radiating equipment, when the temperature of the equipment rises, the contacted bimetallic strip is bent towards the surface with small deformation under the condition of thermal deformation, and the radiating fins 12 of the radiator are extended and exposed in the air, so that the heat is more easily radiated.
When the machine is in a dormant state, the bimetallic strip welded on the ultrathin radiating fins 12 recovers along with the loss of heat, so that the radiating fins 12 are forced to retract into a large section radiator to avoid influencing the appearance, and meanwhile, the radiating fins 12 are protected from being touched by the outside to cause poor appearance or distortion deformation.
The above-mentioned embodiments are the preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-mentioned embodiments, and the scope of the present invention includes and is not limited to the above-mentioned embodiments, and all equivalent changes made according to the present invention are within the protection scope of the present invention.
Claims (9)
1. A heat dissipation element capable of extending in the air for heat dissipation, comprising: the heat dissipation fin comprises a heat dissipation fin body and heat dissipation fins connected with the heat dissipation fin body, wherein the heat dissipation fin body comprises a fixed end used for fixing the heat dissipation fin body and extensible ends used for being fixedly connected with the heat dissipation fins, the number of the extensible ends is more than 1, the extensible ends are arranged in parallel, each extensible end is provided with one heat dissipation fin, the heat dissipation fin body is formed by layering metal with different expansion coefficients more than 2 layers, and the metal is sequentially arranged according to the expansion coefficient.
2. The heat-dissipating component of claim 1, wherein: the radiating fin is a bimetallic strip with two layers, and comprises an active layer with a large expansion coefficient and a passive layer with a small expansion coefficient, and the radiating fin is arranged on the side of the passive layer.
3. The heat-dissipating component of claim 2, wherein: the passive layer is made of metal or metal alloy with nearly zero expansion coefficient after being heated.
4. The heat-dissipating component of claim 3, wherein: the passive layer is made of a nickel-iron alloy, wherein the content of the nickel-iron alloy is Ni39Fe, Ni40Fe or Ni45 Fe.
5. The heat-dissipating component of claim 2, wherein: the active layer is made of iron-nickel-chromium alloy and manganese-copper-nickel alloy.
6. The heat-dissipating component of any one of claims 1-5, wherein: the heat dissipation fin comprises a bottom plate butted with the extensible end and a plurality of thin metal heat dissipation fins vertically arranged on the bottom plate.
7. A heat sink comprising the heat-dissipating component of any of claims 1-6, wherein: including the radiator body, be equipped with on the radiator body with heat dissipation wing quantity the same, be used for holding the recess of single heat dissipation wing, the one side that coefficient of expansion is big is close to the recess bottom and sets up, the stiff end and the radiator body fixed connection of fin, when being heated, the heat dissipation wing can stretch out in the recess under the deformation of stretching the end, after the heat runs off, can stretch out the end and resume deformation, the heat dissipation wing is received and is included in the recess.
8. The heat sink of claim 7, wherein: the fin is still including setting up the connecting portion at stiff end and can extend the end, the whole shape of stiff end, connecting portion and the end that can extend of fin are the Z type, be equipped with the through-hole that a plurality of supplied connecting portion to run through on the radiator body, the stiff end is fixed at the radiator body back, and the heat dissipation wing setting with can extend fixed connection is in the positive recess of radiator body, and the laminating recess bottom sets up.
9. The heat sink of claim 8, wherein: the bottom of the groove is provided with heat dissipation holes, and the back of the radiator body is also provided with a heat dissipation fan close to the heat dissipation holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931604.6U CN210226070U (en) | 2019-06-18 | 2019-06-18 | Radiating element capable of extending in air for radiating and radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920931604.6U CN210226070U (en) | 2019-06-18 | 2019-06-18 | Radiating element capable of extending in air for radiating and radiator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210226070U true CN210226070U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920931604.6U Active CN210226070U (en) | 2019-06-18 | 2019-06-18 | Radiating element capable of extending in air for radiating and radiator |
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| CN (1) | CN210226070U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110167323A (en) * | 2019-06-18 | 2019-08-23 | 先歌国际影音有限公司 | It is a kind of extensible in the heat dissipation element and radiator that radiate in the air |
| CN113517245A (en) * | 2021-07-06 | 2021-10-19 | 深圳网联光仪科技有限公司 | Self-adaptive balanced radiator |
-
2019
- 2019-06-18 CN CN201920931604.6U patent/CN210226070U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110167323A (en) * | 2019-06-18 | 2019-08-23 | 先歌国际影音有限公司 | It is a kind of extensible in the heat dissipation element and radiator that radiate in the air |
| CN113517245A (en) * | 2021-07-06 | 2021-10-19 | 深圳网联光仪科技有限公司 | Self-adaptive balanced radiator |
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Address after: 518000 1st floor, electronic building, Jiuwei Xiange technology and Culture Industrial Park, Jiuwei community, Hangcheng street, Bao'an District, Shenzhen, Guangdong Province Patentee after: IAG Group Ltd. Address before: 518000 Jiuwei Xiange science and Technology Industrial Park, Xi Township, Bao'an District, Shenzhen City, Guangdong Province Patentee before: IAG GROUP Co.,Ltd. |