CN202902949U - Heat absorption sheet - Google Patents

Heat absorption sheet Download PDF

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Publication number
CN202902949U
CN202902949U CN 201220544893 CN201220544893U CN202902949U CN 202902949 U CN202902949 U CN 202902949U CN 201220544893 CN201220544893 CN 201220544893 CN 201220544893 U CN201220544893 U CN 201220544893U CN 202902949 U CN202902949 U CN 202902949U
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CN
China
Prior art keywords
layer
phase change
metal
sheet
change layer
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Active
Application number
CN 201220544893
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Chinese (zh)
Inventor
邓联文
徐丽梅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HANPING (KUNSHAN) ELECTRONIC CO Ltd
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HANPING (KUNSHAN) ELECTRONIC CO Ltd
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Priority to CN 201220544893 priority Critical patent/CN202902949U/en
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Abstract

The utility model discloses a heat absorption sheet which comprises an upper metal layer, a lower metal layer and a phase change layer. The phase change layer is clamped between the upper metal layer and the lower metal layer, and the edges of the upper metal layer and the lower metal layer are sealed through hot melt adhesive. When the heat absorption sheet absorbs heat, the phase change layer is changed into liquid from solid to reduce the temperature of a component. Due to the face that the hot melt adhesive is utilized to carry out sealing, the liquefied phase change layer cannot lead, and meanwhile the volume of the liquefied phase change layer expands. Due to the fact that metal has certain elongation, the bursting of the heat absorption sheet is not prone to occurring.

Description

A kind of heat absorbing sheet
Technical field
The utility model relates to a kind of heat absorbing sheet, belongs to the heat sink technical field.
Background technology
In order to make some components and parts temperature can be not too high, cause components and parts to burn, need to carry out radiating treatment to it, a kind of heat sink that adopts phase change layer, utilize its physical characteristic, solid-state phase change layer becomes liquid state after absorbing heat, can reduce like this temperature of components and parts, reaches the effect of absorbing and cooling temperature, yet after solid-state phase change layer becomes liquid state, because liquid have stronger flowability, easily leak, will pollute components and parts even cause the components and parts damage in case leak.
Summary of the invention
The utility model proposes a kind of heat absorbing sheet, after solving the phase change layer liquefaction in traditional heat absorbing sheet, easily leak the problem that causes components and parts to damage.
For realizing this purpose, the method that the utility model adopts is: a kind of heat absorbing sheet, comprise metal level, lower metal layer and phase change layer, phase change layer in clamping between upper metal level and the lower metal layer, and upper metal level and lower metal layer edge adopt PUR to solidify sealing.
Described phase change layer is paraffin layer or ceramic layer or adhesive layer.
Described upper metal level and lower metal layer are copper sheet or nickel sheet or aluminium flake or silver strip or tin sheet or zinc metal sheet or titanium sheet.
Its beneficial effect is: after heat absorbing sheet absorbs heat, phase change layer becomes liquid by solid, reduce the components and parts temperature with this, owing to utilizing PUR to solidify sealing, the phase change layer of liquefaction can not leak, and simultaneously, the phase change layer volume after the liquefaction expands, because metal has certain percentage elongation, therefore be not easy to cause heat absorbing sheet to burst.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the utility model structural representation.
The specific embodiment
Disclosed all features in this specification, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.
As shown in Figure 1, a kind of heat absorbing sheet, its heat-absorbing material is phase change layer 2, phase change layer 2 is paraffin layer or ceramic layer or adhesive layer, by the solid-state liquid state that becomes, phase change layer 2 is clamped between metal level 1 and the lower metal layer 3 phase change layer 2 after absorbing heat, and the edge of upper metal level 1 and lower metal layer 3 utilizes PUR 4 to solidify sealing, make the inner sealing state that forms, effectively the phase change layer of tissue liquefaction leaks.Since phase change layer 2 by solid-state become liquid state after, certain expansion can occur in volume, and metal material has certain percentage elongation, therefore can prevent that heat absorbing sheet is bursting at the collision separation, and described upper metal level 1 and lower metal layer 3 are copper sheet or nickel sheet or aluminium flake or silver strip or tin sheet or zinc metal sheet or titanium sheet.
The utility model is not limited to the aforesaid specific embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.

Claims (3)

1. heat absorbing sheet, comprise metal level (1), lower metal layer (3) and phase change layer (2), it is characterized in that, phase change layer (2) in clamping between upper metal level (1) and the lower metal layer (3), and upper metal level (1) and lower metal layer (3) edge solidify sealing by PUR (4).
2. heat absorbing sheet according to claim 1 is characterized in that, described phase change layer (2) is paraffin layer or ceramic layer or adhesive layer.
3. heat absorbing sheet according to claim 1 is characterized in that, described upper metal level (1) and lower metal layer (3) are copper sheet or nickel sheet or aluminium flake or silver strip or tin sheet or zinc metal sheet or titanium sheet.
CN 201220544893 2012-10-23 2012-10-23 Heat absorption sheet Active CN202902949U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220544893 CN202902949U (en) 2012-10-23 2012-10-23 Heat absorption sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220544893 CN202902949U (en) 2012-10-23 2012-10-23 Heat absorption sheet

Publications (1)

Publication Number Publication Date
CN202902949U true CN202902949U (en) 2013-04-24

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CN 201220544893 Active CN202902949U (en) 2012-10-23 2012-10-23 Heat absorption sheet

Country Status (1)

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CN (1) CN202902949U (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104422318A (en) * 2013-09-05 2015-03-18 中央大学 Solid-liquid phase change cooler
CN106304797A (en) * 2016-09-29 2017-01-04 努比亚技术有限公司 A kind of mobile terminal
CN106304799A (en) * 2016-09-29 2017-01-04 努比亚技术有限公司 The encapsulating method of a kind of conducting-heat elements and mobile terminal
CN106413345A (en) * 2016-09-29 2017-02-15 努比亚技术有限公司 Sealing method for heat conducting components
CN106455426A (en) * 2016-09-29 2017-02-22 努比亚技术有限公司 Sealing method of heat conduction part
CN106455428A (en) * 2016-09-29 2017-02-22 努比亚技术有限公司 Mobile terminal
CN106455429A (en) * 2016-09-29 2017-02-22 努比亚技术有限公司 Method for sealing thermally conductive member
CN106455427A (en) * 2016-09-29 2017-02-22 努比亚技术有限公司 Mobile terminal
CN109600964A (en) * 2018-11-13 2019-04-09 武汉华星光电半导体显示技术有限公司 The film layer that radiates and the display device with the heat dissipation film layer

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104422318A (en) * 2013-09-05 2015-03-18 中央大学 Solid-liquid phase change cooler
CN106304797A (en) * 2016-09-29 2017-01-04 努比亚技术有限公司 A kind of mobile terminal
CN106304799A (en) * 2016-09-29 2017-01-04 努比亚技术有限公司 The encapsulating method of a kind of conducting-heat elements and mobile terminal
CN106413345A (en) * 2016-09-29 2017-02-15 努比亚技术有限公司 Sealing method for heat conducting components
CN106455426A (en) * 2016-09-29 2017-02-22 努比亚技术有限公司 Sealing method of heat conduction part
CN106455428A (en) * 2016-09-29 2017-02-22 努比亚技术有限公司 Mobile terminal
CN106455429A (en) * 2016-09-29 2017-02-22 努比亚技术有限公司 Method for sealing thermally conductive member
CN106455427A (en) * 2016-09-29 2017-02-22 努比亚技术有限公司 Mobile terminal
CN106455428B (en) * 2016-09-29 2018-12-21 努比亚技术有限公司 A kind of mobile terminal
CN106455426B (en) * 2016-09-29 2019-06-07 努比亚技术有限公司 A kind of encapsulating method of conducting-heat elements
CN109600964A (en) * 2018-11-13 2019-04-09 武汉华星光电半导体显示技术有限公司 The film layer that radiates and the display device with the heat dissipation film layer

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