WO2012152018A1 - Planar heat-pipe heat exchanger - Google Patents

Planar heat-pipe heat exchanger Download PDF

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Publication number
WO2012152018A1
WO2012152018A1 PCT/CN2011/084561 CN2011084561W WO2012152018A1 WO 2012152018 A1 WO2012152018 A1 WO 2012152018A1 CN 2011084561 W CN2011084561 W CN 2011084561W WO 2012152018 A1 WO2012152018 A1 WO 2012152018A1
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WO
WIPO (PCT)
Prior art keywords
groove
heat exchanger
condensation
evaporation
heat
Prior art date
Application number
PCT/CN2011/084561
Other languages
French (fr)
Chinese (zh)
Inventor
朱旺法
薛松
鞠金培
刘欣
易杰
景佰亨
郭雨龙
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012152018A1 publication Critical patent/WO2012152018A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • F28D15/0233—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes the conduits having a particular shape, e.g. non-circular cross-section, annular

Definitions

  • the invention relates to the technical field of heat exchangers, in particular to a flat heat pipe heat exchanger. Background technique
  • the heat pipe can quickly pass the heat generated by the high-heat heat source through the vaporizing subtropical zone. Because of the large latent heat of vaporization, the temperature of the heated surface can be instantaneously reduced, thereby effectively reducing the temperature of the heat source and improving the reliability of the system.
  • the power consumption of the power tube is up to several hundred watts.
  • the traditional solution is to: solder the power tube on the copper substrate, and use the good thermal conductivity of copper to quickly heat the local heat source. Expanding around, increasing the effective heat dissipation area, and efficiently transferring heat to the heat dissipating fins, thereby reducing the temperature of the heat source.
  • VC steam chamber heat pipe on RRU shows that no matter what structure is adopted, as long as the heat can be quickly diffused (showing good uniform temperature performance on the contact surface with the heat source), the temperature of the heat source can be effectively reduced, and the whole system can be improved. reliability.
  • the VC steam cavity heat pipe has a fatal disadvantage in that the external dimensions are limited. When the external dimensions are increased to a certain extent, the heat pipe cannot work, and the heat transfer effect of the entire heat pipe is even worse than that of the copper block. The main reason is that when the external dimensions increase, The capillary force (a force that drives the flow of the liquid caused by the surface tension) cannot overcome the flow resistance of the liquid. At this time, the VC steam chamber heat pipe cannot work, and thus the heat transfer performance is drastically deteriorated. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a flat heat pipe heat exchanger for solving the problem that the heat dissipation performance of the prior art steam cavity heat pipe is limited by the structure size.
  • the present invention provides a flat heat pipe heat exchanger, the heat exchanger comprising: a casing, the inside of the casing is a closed steam chamber; the steam chamber is provided with a working liquid;
  • the heat exchanger is provided with a condensation surface and an evaporation surface, a top surface of the condensation surface is provided with a condensation surface groove collector; a bottom surface of the evaporation surface is provided with a evaporation surface groove collector; the condensation surface groove collector and the evaporation surface
  • the groove collector is in communication through an internal groove disposed on an inner wall of the steam chamber.
  • the internal grooves are one or more.
  • the inner groove includes a condensation surface inner groove and an evaporation surface inner groove, and the condensation surface inner groove extends downward with the condensation surface groove collector as a vertex; the evaporation surface inner groove is The evaporation surface groove collector extends upward from the apex and communicates with the internal groove of the condensation surface to form a closed loop.
  • the working liquid is water, ammonia or a refrigerant.
  • the evaporation surface groove collector is filled with a porous metal foam, a wire mesh, and/or a sintered metal powder.
  • a portion of the outer casing corresponding to the condensing surface is provided with heat dissipating fins, or a groove is formed.
  • the inner groove is semicircular, square, trapezoidal or triangular.
  • the invention absorbs the heat of the heat source through the working liquid in the evaporation surface groove collector, and the generated steam liquefies and radiates heat on the condensation surface through the steam chamber, and the heat is radiated to the surrounding environment, and the steam is on the condensation surface. After condensing in the groove collector, under the action of gravity and capillary force, it flows along the internal groove to the evaporation surface groove collector to realize circulation.
  • the invention can effectively reduce the temperature of the power tube device, thereby ensuring reliable, safe and stable operation of the system.
  • FIG. 1 is a schematic structural view of a flat heat pipe heat exchanger according to an embodiment of the present invention
  • Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
  • Figure 3 is a cross-sectional view taken along line B-B of Figure 1;
  • Figure 4 is a perspective view showing the internal structure of the internal groove of Figure 1;
  • Figure 5 is a cross-sectional view taken along line C-C of Figure 1. detailed description
  • the present invention provides a flat heat pipe heat exchanger.
  • the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
  • FIG. 1 is a schematic structural view of a flat heat pipe heat exchanger according to an embodiment of the present invention, wherein the broken line in FIG. 1 indicates the internal structure of the flat heat pipe heat exchanger.
  • an embodiment of the present invention relates to a flat heat pipe heat exchanger, comprising: a casing 1 having a closed steam chamber 2 inside the casing 1; a working liquid 52 disposed in the steam chamber 2; The evaporation surface 6 and the condensation surface 7 and the four side surfaces are surrounded, wherein the evaporation surface 6 refers to a surface that absorbs heat of the heat source through the working liquid 52 in the evaporation surface groove collector 5; the condensation surface 7 is a surface that is directed to the external heat dissipation.
  • the outer casing 1 adopts a six-sided square structure, the two largest surfaces are the evaporation surface 6 and the condensation surface 7, respectively, and the remaining four surfaces are the upper and lower bottom surfaces and the left and right side surfaces, respectively.
  • the top of the condensation surface 7 is provided with a condensation surface groove collector 3; the bottom of the evaporation surface 6 is provided with a evaporation surface groove collector 5; the condensation surface groove collector 3 and the evaporation surface groove collector 5 are disposed on the inner wall of the steam chamber 2
  • the upper inner groove 4 is connected.
  • the inner grooves 4 may be one piece or a plurality of pieces, and in the case of a plurality of pieces, each of them communicates with the condensing surface groove concentrator 3 and the evaporation surface groove concentrator 5.
  • the inner groove 4 includes a condensation face inner groove 41 and an evaporation face inner groove 42.
  • the condensation face inner groove 41 extends downward with the condensation face groove collector 3 as a vertex, and the groove of the condensation section has a ' ⁇ 'shape;
  • the evaporation surface inner groove 42 extends upward from the evaporation surface groove collector 5 and communicates with the condensation surface inner groove collector 3 to form a closed loop.
  • the evaporation section groove and the condensation section groove have opposite shapes. ' ⁇ ' shape.
  • the groove is also provided with grooves on both sides of the vapor chamber 2 connecting the condensation surface 7 and the evaporation surface 6, for connecting the condensation surface inner groove 41 and the evaporation surface inner groove 42 to form a closed loop.
  • the shape of the inner groove 4 may be semicircular, square, trapezoidal or triangular.
  • the semicircle includes an " ⁇ " shape, an ellipse shape, a quarter circle shape, a three-quarter circle shape, a circular arc shape, and the like.
  • the trapezoid includes a trapezoid with a small upper bottom, a large trapezoid with a large lower bottom, and a small dovetail with a large upper and lower bottom.
  • the entire flat heat pipe radiator of this embodiment is placed in a vertical position; the portion of the outer casing 1 corresponding to the condensation surface 7 is provided with heat dissipating fins, or a groove is formed.
  • the outer casing 1 corresponding to the condensation surface 7 is provided with fins to increase the effective condensation area.
  • the cold source is a liquid, a "U" shaped channel or a fractal tree structure can be directly placed on the condensing surface of the casing to enhance heat exchange.
  • the housing material of the outer casing 1 may be a variety of high thermal conductivity metals such as copper and aluminum alloy.
  • the working fluid 52 is water, ammonia or a plurality of refrigerants.
  • the evaporation face groove collection 5 is filled with a porous metal foam, a wire mesh and/or a sintered metal powder, or various composite heat source wick structures 51.
  • the wick can enhance the capillary driving force, not only can quickly evaporate or boil the working liquid, form steam 8, and can quickly flow the liquid in the condensing section to the evaporation point, thereby improving the heat exchange efficiency.
  • the working principle of the flat heat pipe heat exchanger of the present invention is that the flat heat pipe heat exchanger is placed vertically, the evaporation surface groove collector 5 is located at the bottom of the evaporation surface 6, and the condensation section groove collector 3 is located at the condensation surface 7. The top. The position of the heat source 10 is close to the bottom of the flat heat pipe heat exchanger of the embodiment of the present invention.
  • the flat heat pipe of the embodiment uses the working liquid (working liquid 52) in the groove collector 5 of the evaporation section.
  • the heat of the power tube is absorbed to generate an evaporation phase change, and the steam 8 generated by the vapor phase transition from the heat source point rapidly flows through the steam chamber 2 to the condensation surface 7 of a larger area, and the heat is released after the condensation surface 7 is condensed, passing through the condensation surface 7 Direct transmission to external sources of cold.
  • the condensate produced by the vapor 8 after liquefaction on the condensing surface 7 flows downward in both directions of the inner groove 41 of the condensing surface under the double driving of capillary force and gravity, and passes through the side wall groove to the inner groove 42 of the evaporation surface. Go to the evaporation section groove collector 5.
  • the working liquid in the evaporation section groove collector 5 again absorbs the heat of the high heat flow heat source 10 to generate steam 8, which is condensed by the steam chamber 2 to the condensation surface 7.
  • the heat transfer in the heat pipe is realized by the capillary pump pressure and the gravity, and the heat of the heat source 10 can be quickly absorbed, thereby effectively reducing the temperature of the heat source 10.
  • the flat heat pipe heat exchanger of the embodiment of the invention can quickly pass the heat generated by the high heat flow heat source point through the vaporization latent tropical zone, the latent heat of the vaporization is large, so that the temperature level of the heating surface can be instantaneously reduced, so that the flat heat pipe heating surface has superior isothermal temperature. Performance, effectively reducing the temperature of the power tube device, thus ensuring reliable, safe and stable operation of the system. It can not only overcome the shortcomings of the copper block unable to transmit large heat in a limited space, but also overcome the shortcomings of the VC steam cavity heat pipe structure when it has a large size.
  • the internal groove structure can not only effectively utilize the suction driving effect of the capillary force, but also make full use of the action of gravity to quickly return the condensate from the condensation section to the evaporation section;
  • the composite wick structure of the inner groove of the evaporation surface and the wire mesh can provide a strong capillary driving force, and also allows the liquid in the condensing section to quickly flow back to the evaporation section. This greatly increases the maximum heat transfer capacity. Therefore, it can effectively eliminate local hot spots, improve the temperature uniformity of the heating surface and reduce the temperature of the power tube, thereby reducing the overall system temperature and ensuring reliable, safe and stable operation of the system.
  • the flat heat pipe heat exchanger of the embodiment of the invention has the characteristics of simple structure, convenient processing and strong operability.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)

Abstract

A planar heat-pipe heat exchanger comprising: a housing (1), a sealed steam cavity (2) within the housing (1), and a working fluid (52) provided within the steam cavity (2). The planar heat-pipe heat exchanger is provided with a condensation face (7) and an evaporation face (6). The steam cavity (2) is surrounded by the condensation face (7), the evaporation face (6), and four lateral faces. The condensation face (7) has arranged on the top thereof a condensation face groove aggregator (3). The evaporation face (6) has arranged at the bottom thereof an evaporation face groove aggregator (5). The condensation face groove aggregator (3) and the evaporation face groove aggregator (5) are connected via internal grooves (4) arranged on the interior wall of the steam cavity (2). The planar heat-pipe heat exchanger allows for effectively reduced temperature of power tube components, thereby ensuring reliable, safe, and stable system operation.

Description

一种平板热管换热器 技术领域  Flat heat pipe heat exchanger
本发明涉及换热器技术领域， 特别是涉及一种平板热管换热器。 背景技术  The invention relates to the technical field of heat exchangers, in particular to a flat heat pipe heat exchanger. Background technique
热管能将高热量热源产生的热量迅速通过汽化潜热带走， 由于汽化潜 热大， 因此， 能瞬时降低受热面的温度， 从而有效降低热源温度， 提高系 统可靠性。  The heat pipe can quickly pass the heat generated by the high-heat heat source through the vaporizing subtropical zone. Because of the large latent heat of vaporization, the temperature of the heated surface can be instantaneously reduced, thereby effectively reducing the temperature of the heat source and improving the reliability of the system.
RRU ( Radio Remote Unit, 射频拉远模块）产品中功率管热耗高达几百 瓦， 传统解决方法是： 将功率管焊接在铜基底上， 利用铜良好的导热能力， 可以把局部热源的热量迅速向四周扩展， 增大有效散热面积， 从而高效的 将热量传递到散热翅上， 进而降低热源的温度。  In the RRU (Radio Remote Unit) product, the power consumption of the power tube is up to several hundred watts. The traditional solution is to: solder the power tube on the copper substrate, and use the good thermal conductivity of copper to quickly heat the local heat source. Expanding around, increasing the effective heat dissipation area, and efficiently transferring heat to the heat dissipating fins, thereby reducing the temperature of the heat source.
但目前上述方法已无法满足日益增大的功率管热耗的需求。 由于功率 管热耗很大， 不能有效的将功率管的热耗带出***， 不仅会影响功率管的 本身寿命， 而且更会影响整个***的可靠性。 因此， 出现了 VC ( Vapour Cavity, 蒸汽腔）热管， 其外形结构和铜块形状相似。 由于内部采用了毛细 芯结构 （烧结铜粉以及金属丝网）， 其水平方向 （切向） 的导热系数很大， 因此热阻小， 热源的热量能迅速的扩展到整个面上， 因此， 相对于传统铜 块散热， 散热效果更加显著。  However, the above methods have been unable to meet the increasing demand for power tube heat consumption. Since the power tube has a large heat consumption, the heat consumption of the power tube cannot be effectively taken out of the system, which not only affects the life of the power tube itself, but also affects the reliability of the entire system. Therefore, VC (Vapour Cavity) heat pipes have appeared, and their shape and shape are similar. Since the capillary core structure (sintered copper powder and wire mesh) is used inside, the horizontal direction (tangential) has a large thermal conductivity, so the thermal resistance is small, and the heat of the heat source can rapidly spread to the entire surface. Therefore, In the traditional copper block heat dissipation, the heat dissipation effect is more remarkable.
VC蒸汽腔热管在 RRU上的应用表明， 无论采用何种结构， 只要能将 热量迅速扩散（与热源接触面上表现为良好的均温性能）， 即可有效降低热 源的温度，提高整个***的可靠性。但 VC蒸汽腔热管有个致命的缺点是外 形尺寸受到一定限制， 当外形尺寸增加到一定程度时， 热管无法工作， 整 个热管的传热效果甚至比铜块还差。 其主要原因是当外形尺寸增大时， 内 部的毛细力 （由表面张力而引起的一种驱动液体流动的力） 无法克服液体 的流动阻力， 此时 VC蒸汽腔热管无法工作， 因此传热性能急剧恶化。 发明内容 The application of VC steam chamber heat pipe on RRU shows that no matter what structure is adopted, as long as the heat can be quickly diffused (showing good uniform temperature performance on the contact surface with the heat source), the temperature of the heat source can be effectively reduced, and the whole system can be improved. reliability. However, the VC steam cavity heat pipe has a fatal disadvantage in that the external dimensions are limited. When the external dimensions are increased to a certain extent, the heat pipe cannot work, and the heat transfer effect of the entire heat pipe is even worse than that of the copper block. The main reason is that when the external dimensions increase, The capillary force (a force that drives the flow of the liquid caused by the surface tension) cannot overcome the flow resistance of the liquid. At this time, the VC steam chamber heat pipe cannot work, and thus the heat transfer performance is drastically deteriorated. Summary of the invention
本发明要解决的技术问题是提供一种平板热管换热器， 用以解决现有 技术蒸汽腔热管散热性能受结构尺寸限制的问题。  The technical problem to be solved by the present invention is to provide a flat heat pipe heat exchanger for solving the problem that the heat dissipation performance of the prior art steam cavity heat pipe is limited by the structure size.
为解决上述技术问题， 本发明提供一种平板热管换热器， 所述换热器 包括： 外壳， 所述外壳内部为封闭的蒸汽腔； 所述蒸汽腔内设置有工作液 体； 所述平板热管换热器设置有冷凝面和蒸发面， 所述冷凝面顶部设置有 冷凝面沟槽汇集器； 所述蒸发面底部设置有蒸发面沟槽汇集器； 所述冷凝 面沟槽汇集器和蒸发面沟槽汇集器通过设置在所述蒸汽腔内壁上的内部沟 槽连通。  In order to solve the above technical problem, the present invention provides a flat heat pipe heat exchanger, the heat exchanger comprising: a casing, the inside of the casing is a closed steam chamber; the steam chamber is provided with a working liquid; The heat exchanger is provided with a condensation surface and an evaporation surface, a top surface of the condensation surface is provided with a condensation surface groove collector; a bottom surface of the evaporation surface is provided with a evaporation surface groove collector; the condensation surface groove collector and the evaporation surface The groove collector is in communication through an internal groove disposed on an inner wall of the steam chamber.
进一步， 所述内部沟槽为一条或多条。  Further, the internal grooves are one or more.
进一步， 所述内部沟槽包括冷凝面内部沟槽和蒸发面内部沟槽， 所述 冷凝面内部沟槽以所述冷凝面沟槽汇集器为顶点向下延伸； 所述蒸发面内 部沟槽以所述蒸发面沟槽汇集器为顶点向上延伸， 并与所述冷凝面内部沟 槽连通， 形成闭合环路。  Further, the inner groove includes a condensation surface inner groove and an evaporation surface inner groove, and the condensation surface inner groove extends downward with the condensation surface groove collector as a vertex; the evaporation surface inner groove is The evaporation surface groove collector extends upward from the apex and communicates with the internal groove of the condensation surface to form a closed loop.
进一步， 所述工作液体为水、 氨水或制冷剂。  Further, the working liquid is water, ammonia or a refrigerant.
进一步， 所述蒸发面沟槽汇集器内填充有多孔泡沫金属、 金属丝网和 / 或烧结金属粉末。  Further, the evaporation surface groove collector is filled with a porous metal foam, a wire mesh, and/or a sintered metal powder.
进一步， 所述外壳与冷凝面对应的部分设置有散热翅片， 或加工有槽 道。  Further, a portion of the outer casing corresponding to the condensing surface is provided with heat dissipating fins, or a groove is formed.
进一步， 所述内部沟槽为半圆形、 方形、 梯形或三角形。  Further, the inner groove is semicircular, square, trapezoidal or triangular.
本发明有益效果如下：  The beneficial effects of the present invention are as follows:
本发明通过蒸发面沟槽汇集器内工作液体吸收热源热量， 产生的蒸汽 通过蒸汽腔在冷凝面液化放热， 将热量散发到周围环境中， 蒸汽在冷凝面 沟槽汇集器内冷凝后， 在重力和毛细力的作用下， 沿内部沟槽流到蒸发面 沟槽汇集器内， 实现循环。 本发明能有效降低功率管器件的温度， 进而保 证***可靠、 安全、 稳定工作。 附图说明 The invention absorbs the heat of the heat source through the working liquid in the evaporation surface groove collector, and the generated steam liquefies and radiates heat on the condensation surface through the steam chamber, and the heat is radiated to the surrounding environment, and the steam is on the condensation surface. After condensing in the groove collector, under the action of gravity and capillary force, it flows along the internal groove to the evaporation surface groove collector to realize circulation. The invention can effectively reduce the temperature of the power tube device, thereby ensuring reliable, safe and stable operation of the system. DRAWINGS
图 1 是本发明实施例中一种平板热管换热器的结构示意图；  1 is a schematic structural view of a flat heat pipe heat exchanger according to an embodiment of the present invention;
图 2是图 1的 A-A剖视图；  Figure 2 is a cross-sectional view taken along line A-A of Figure 1;
图 3 是图 1的 B-B剖视图；  Figure 3 is a cross-sectional view taken along line B-B of Figure 1;
图 4是图 1中的内部沟槽立体结构示意图；  Figure 4 is a perspective view showing the internal structure of the internal groove of Figure 1;
图 5 是图 1的 C-C剖视图。 具体实施方式  Figure 5 is a cross-sectional view taken along line C-C of Figure 1. detailed description
为了解决现有技术蒸汽腔热管散热性能受结构尺寸限制的问题， 本发 明提供了一种平板热管换热器， 以下结合附图以及实施例， 对本发明进行 进一步详细说明。 应当理解， 此处所描述的具体实施例仅仅用以解释本发 明， 并不限定本发明。  In order to solve the problem that the heat dissipation performance of the prior art steam chamber heat pipe is limited by the structure size, the present invention provides a flat heat pipe heat exchanger. The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
图 1 为本发明实施例中一种平板热管换热器的结构示意图， 其中图 1 中的虚线表示平板热管换热器的内部结构。 如图 1~5所示， 本发明实施例 涉及一种平板热管换热器， 包括： 外壳 1 , 外壳 1内部为封闭的蒸汽腔 2; 蒸汽腔 2内设置有工作液体 52; 蒸汽腔 2被蒸发面 6和冷凝面 7以及四个 侧面包围形成， 其中， 蒸发面 6是指通过蒸发面沟槽汇集器 5 内的工作液 体 52吸收热源热量的面； 冷凝面 7是指向外散热的面。 当外壳 1采用六面 方形结构时， 面积最大的两个面分别为蒸发面 6和冷凝面 7, 剩余四个面分 别为上下底面和左右侧面。 冷凝面 7顶部设置有冷凝面沟槽汇集器 3; 蒸发 面 6底部设置有蒸发面沟槽汇集器 5;冷凝面沟槽汇集器 3和蒸发面沟槽汇 集器 5通过设置在蒸汽腔 2内壁上的内部沟槽 4连通。 其中， 内部沟槽 4可以为一条， 也可以是多条， 当多条的情况下， 每 一条都连通冷凝面沟槽汇集器 3和蒸发面沟槽汇集器 5。内部沟槽 4包括冷 凝面内部沟槽 41和蒸发面内部沟槽 42, 冷凝面内部沟槽 41以冷凝面沟槽 汇集器 3 为顶点向下延伸， 冷凝段的沟槽呈 'Ά" 形状； 蒸发面内部沟槽 42以蒸发面沟槽汇集器 5为顶点向上延伸， 并与冷凝面内部沟槽汇集器 3 连通， 形成闭合环路。 蒸发段沟槽和冷凝段沟槽的形状相反， 呈 'Ύ" 形 状。 沟槽在蒸汽腔 2连接冷凝面 7和蒸发面 6的两个侧面上也设置有沟槽， 用于连接冷凝面内部沟槽 41和蒸发面内部沟槽 42,使其形成闭合环路。 内 部沟槽 4的形状可以为半圆形、 方形、 梯形或三角形。 其中， 半圆形包括 "Ω" 形、 椭圆形、 四分之一圆形、 四分之三圆形、 圆弧形等形状。 梯形包 括上底小、 下底大的正梯形和上底大、 下底小的类似燕尾的梯形。 1 is a schematic structural view of a flat heat pipe heat exchanger according to an embodiment of the present invention, wherein the broken line in FIG. 1 indicates the internal structure of the flat heat pipe heat exchanger. As shown in FIG. 1 to FIG. 5, an embodiment of the present invention relates to a flat heat pipe heat exchanger, comprising: a casing 1 having a closed steam chamber 2 inside the casing 1; a working liquid 52 disposed in the steam chamber 2; The evaporation surface 6 and the condensation surface 7 and the four side surfaces are surrounded, wherein the evaporation surface 6 refers to a surface that absorbs heat of the heat source through the working liquid 52 in the evaporation surface groove collector 5; the condensation surface 7 is a surface that is directed to the external heat dissipation. When the outer casing 1 adopts a six-sided square structure, the two largest surfaces are the evaporation surface 6 and the condensation surface 7, respectively, and the remaining four surfaces are the upper and lower bottom surfaces and the left and right side surfaces, respectively. The top of the condensation surface 7 is provided with a condensation surface groove collector 3; the bottom of the evaporation surface 6 is provided with a evaporation surface groove collector 5; the condensation surface groove collector 3 and the evaporation surface groove collector 5 are disposed on the inner wall of the steam chamber 2 The upper inner groove 4 is connected. The inner grooves 4 may be one piece or a plurality of pieces, and in the case of a plurality of pieces, each of them communicates with the condensing surface groove concentrator 3 and the evaporation surface groove concentrator 5. The inner groove 4 includes a condensation face inner groove 41 and an evaporation face inner groove 42. The condensation face inner groove 41 extends downward with the condensation face groove collector 3 as a vertex, and the groove of the condensation section has a 'Ά'shape; The evaporation surface inner groove 42 extends upward from the evaporation surface groove collector 5 and communicates with the condensation surface inner groove collector 3 to form a closed loop. The evaporation section groove and the condensation section groove have opposite shapes. 'Ύ' shape. The groove is also provided with grooves on both sides of the vapor chamber 2 connecting the condensation surface 7 and the evaporation surface 6, for connecting the condensation surface inner groove 41 and the evaporation surface inner groove 42 to form a closed loop. The shape of the inner groove 4 may be semicircular, square, trapezoidal or triangular. Among them, the semicircle includes an "Ω" shape, an ellipse shape, a quarter circle shape, a three-quarter circle shape, a circular arc shape, and the like. The trapezoid includes a trapezoid with a small upper bottom, a large trapezoid with a large lower bottom, and a small dovetail with a large upper and lower bottom.
本实施例的整个平板热管散热器处于竖直放置状态；外壳 1与冷凝面 7 对应的部分设置有散热翅片，或加工有槽道。对于 RRU类自然散热产品（冷 源为空气）， 冷凝面 7对应的外壳 1上设置有翅片， 以增大有效冷凝面积。 当冷源为液体时， 可直接在冷凝面外壳上开 "U" 形槽道， 或分形树状结构 以强化换热。  The entire flat heat pipe radiator of this embodiment is placed in a vertical position; the portion of the outer casing 1 corresponding to the condensation surface 7 is provided with heat dissipating fins, or a groove is formed. For the RRU type natural heat dissipation product (the cold source is air), the outer casing 1 corresponding to the condensation surface 7 is provided with fins to increase the effective condensation area. When the cold source is a liquid, a "U" shaped channel or a fractal tree structure can be directly placed on the condensing surface of the casing to enhance heat exchange.
外壳 1的壳体材料可以为铜、 铝合金等多种高导热性能金属。  The housing material of the outer casing 1 may be a variety of high thermal conductivity metals such as copper and aluminum alloy.
工作液体 52为水、 氨水或多种制冷剂。 蒸发面沟槽汇集 5内填充有多 孔泡沫金属、金属丝网和 /或烧结金属粉末，或各种复合热源吸液芯结构 51。 该吸液芯能增强毛细驱动力， 不仅能使工作液体快速蒸发或沸腾， 形成蒸 汽 8, 而且能使冷凝段的液体快速的流到蒸发点， 提高换热效率。  The working fluid 52 is water, ammonia or a plurality of refrigerants. The evaporation face groove collection 5 is filled with a porous metal foam, a wire mesh and/or a sintered metal powder, or various composite heat source wick structures 51. The wick can enhance the capillary driving force, not only can quickly evaporate or boil the working liquid, form steam 8, and can quickly flow the liquid in the condensing section to the evaporation point, thereby improving the heat exchange efficiency.
本发明的平板热管换热器的工作原理是， 该平板热管换热器竖直放置， 蒸发面沟槽汇集器 5位于蒸发面 6最底部， 而冷凝段沟槽汇集器 3位于冷 凝面 7的最顶部。 热源 10位置接近本发明实施例的平板热管换热器底部， 本实施例的平板热管是利用蒸发段沟槽汇集器 5内工作液体（工作液体 52 ) 吸收功率管热量而产生蒸发相变， 从热源点蒸发相变产生的蒸汽 8迅速通 过蒸汽腔 2向更大的面积的冷凝面 7流动， 在冷凝面 7冷凝后释放出热量， 通过冷凝面 7直接传输给外界冷源。 蒸汽 8在冷凝面 7液化后产生的凝结 液， 在毛细力和重力的双重驱动下沿冷凝面内部沟槽 41的两个方向向下流 动， 经侧壁沟槽到蒸发面内部沟槽 42回到蒸发段沟槽汇集器 5。 蒸发段沟 槽汇集器 5内的工作液体再次吸收高热流热源 10的热量而产生蒸汽 8, 通 过蒸汽腔 2到达冷凝面 7冷凝。 这样在毛细泵压和重力的驱动下实现了热 管内工质相变换热循环， 可以快速的吸收热源 10的热量，有效降低热源 10 的温度。 The working principle of the flat heat pipe heat exchanger of the present invention is that the flat heat pipe heat exchanger is placed vertically, the evaporation surface groove collector 5 is located at the bottom of the evaporation surface 6, and the condensation section groove collector 3 is located at the condensation surface 7. The top. The position of the heat source 10 is close to the bottom of the flat heat pipe heat exchanger of the embodiment of the present invention. The flat heat pipe of the embodiment uses the working liquid (working liquid 52) in the groove collector 5 of the evaporation section. The heat of the power tube is absorbed to generate an evaporation phase change, and the steam 8 generated by the vapor phase transition from the heat source point rapidly flows through the steam chamber 2 to the condensation surface 7 of a larger area, and the heat is released after the condensation surface 7 is condensed, passing through the condensation surface 7 Direct transmission to external sources of cold. The condensate produced by the vapor 8 after liquefaction on the condensing surface 7 flows downward in both directions of the inner groove 41 of the condensing surface under the double driving of capillary force and gravity, and passes through the side wall groove to the inner groove 42 of the evaporation surface. Go to the evaporation section groove collector 5. The working liquid in the evaporation section groove collector 5 again absorbs the heat of the high heat flow heat source 10 to generate steam 8, which is condensed by the steam chamber 2 to the condensation surface 7. In this way, the heat transfer in the heat pipe is realized by the capillary pump pressure and the gravity, and the heat of the heat source 10 can be quickly absorbed, thereby effectively reducing the temperature of the heat source 10.
由于本发明实施例的平板热管换热器能将高热流热源点产生的热量迅 速通过汽化潜热带走， 由于汽化潜热大， 因此能瞬时降低受热面的温度水 平， 使得平板热管受热面具有优越等温性能， 有效减低功率管器件的温度， 进而保证***的可靠、 安全、 稳定工作。 不仅能克服在有限空间下铜块无 法将大热量即时传递的缺点，而且能克服 VC蒸汽腔热管结构尺寸较大时无 法工作的缺点。 其特殊的 'Ά" 形状和 'Ύ" 形状的内部沟槽结构不仅能 有效利用毛细力的抽吸驱动作用， 更能充分利用重力的作用， 使冷凝液快 速的从冷凝段流回蒸发段； 蒸发面内部沟槽与金属丝网的复合吸液芯结构 能提供强劲的毛细驱动力， 也使冷凝段的液体快速的流回蒸发段。 从而极 大提高最大换热能力。 因此， 能有效地消除局部热点， 提高受热面的温度 均匀性并降低功率管的温度， 进而降低整个***温度， 确保***可靠、 安 全、 稳定的运行。 另外， 本发明实施例的平板热管换热器还具有结构简单， 加工方便， 可操作性强的特点。  Since the flat heat pipe heat exchanger of the embodiment of the invention can quickly pass the heat generated by the high heat flow heat source point through the vaporization latent tropical zone, the latent heat of the vaporization is large, so that the temperature level of the heating surface can be instantaneously reduced, so that the flat heat pipe heating surface has superior isothermal temperature. Performance, effectively reducing the temperature of the power tube device, thus ensuring reliable, safe and stable operation of the system. It can not only overcome the shortcomings of the copper block unable to transmit large heat in a limited space, but also overcome the shortcomings of the VC steam cavity heat pipe structure when it has a large size. Its special 'Ά' shape and 'Ύ' shape of the internal groove structure can not only effectively utilize the suction driving effect of the capillary force, but also make full use of the action of gravity to quickly return the condensate from the condensation section to the evaporation section; The composite wick structure of the inner groove of the evaporation surface and the wire mesh can provide a strong capillary driving force, and also allows the liquid in the condensing section to quickly flow back to the evaporation section. This greatly increases the maximum heat transfer capacity. Therefore, it can effectively eliminate local hot spots, improve the temperature uniformity of the heating surface and reduce the temperature of the power tube, thereby reducing the overall system temperature and ensuring reliable, safe and stable operation of the system. In addition, the flat heat pipe heat exchanger of the embodiment of the invention has the characteristics of simple structure, convenient processing and strong operability.
尽管为示例目的， 已经公开了本发明的优选实施例， 本领域的技术人 员将意识到各种改进、 增加和取代也是可能的， 因此， 本发明的范围应当 不限于上述实施例。  While the preferred embodiments of the present invention have been disclosed for purposes of illustration, those skilled in the art will recognize that various modifications, additions and substitutions are possible, and the scope of the invention should not be limited to the embodiments described above.

Claims

权利要求书 Claim
1、 一种平板热管换热器， 其特征在于， 所述换热器包括： 外壳， 所 述外壳内部为封闭的蒸汽腔； 所述蒸汽腔内设置有工作液体； 所述平板 热管换热器设置有冷凝面和蒸发面， 所述冷凝面顶部设置有冷凝面沟槽 汇集器； 所述蒸发面底部设置有蒸发面沟槽汇集器； 所述冷凝面沟槽汇 集器和蒸发面沟槽汇集器通过设置在所述蒸汽腔内壁上的内部沟槽连 通。  A flat heat pipe heat exchanger, characterized in that: the heat exchanger comprises: a casing, the inside of the casing is a closed steam chamber; a working liquid is arranged in the steam chamber; and the flat heat pipe heat exchanger a condensation surface and an evaporation surface are disposed, the condensation surface is provided with a condensation surface groove collector; the evaporation surface bottom is provided with an evaporation surface groove collector; the condensation surface groove collector and the evaporation surface groove are collected The device communicates through an internal groove disposed on an inner wall of the vapor chamber.
2、 如权利要求 1所述的平板热管换热器， 其特征在于， 所述内部沟 槽为一条或多条。  2. The flat heat pipe heat exchanger according to claim 1, wherein said internal grooves are one or more.
3、 如权利要求 1或 2所述的平板热管换热器， 其特征在于， 所述内 部沟槽包括冷凝面内部沟槽和蒸发面内部沟槽， 所述冷凝面内部沟槽以 所述冷凝面沟槽汇集器为顶点向下延伸； 所述蒸发面内部沟槽以所述蒸 发面沟槽汇集器为顶点向上延伸， 并与所述冷凝面内部沟槽连通， 形成 闭合环路。  The flat heat pipe heat exchanger according to claim 1 or 2, wherein the inner groove comprises a condensation face inner groove and an evaporation face inner groove, and the condensation face inner groove is condensed The surface groove collector extends downwardly from the apex; the evaporation surface inner groove extends upward from the evaporation surface groove collector and communicates with the internal groove of the condensation surface to form a closed loop.
4、 如权利要求 1或 2所述的平板热管换热器， 其特征在于， 所述工 作液体为水、 氨水或制冷剂。  The flat heat pipe heat exchanger according to claim 1 or 2, wherein the working liquid is water, ammonia water or a refrigerant.
5、 如权利要求 1或 2所述的平板热管换热器， 其特征在于， 所述蒸 发面沟槽汇集器内填充有多孔泡沫金属、 金属丝网和 /或烧结金属粉末。  The flat heat pipe heat exchanger according to claim 1 or 2, wherein the evaporation surface groove collector is filled with a porous metal foam, a wire mesh, and/or a sintered metal powder.
6、 如权利要求 1或 2所述的平板热管换热器， 其特征在于， 所述外 壳与冷凝面对应的部分设置有散热翅片， 或加工有槽道。  The flat heat pipe heat exchanger according to claim 1 or 2, wherein the portion of the outer casing corresponding to the condensing surface is provided with heat dissipating fins or is machined with a groove.
7、 如权利要求 1或 2所述的平板热管换热器， 其特征在于， 所述内 部沟槽为半圆形、 方形、 梯形或三角形。  The flat heat pipe heat exchanger according to claim 1 or 2, wherein the inner groove is semicircular, square, trapezoidal or triangular.
PCT/CN2011/084561 2011-07-01 2011-12-23 Planar heat-pipe heat exchanger WO2012152018A1 (en)

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102261862B (en) * 2011-07-01 2016-04-13 中兴通讯股份有限公司 A kind of Flat heat pipe heat exchanger
CN103395155A (en) * 2013-07-01 2013-11-20 长春富维—江森自控汽车饰件***有限公司 Method for eliminating film type bubble on B surface of slush moulding cuticle
CN103453792A (en) * 2013-08-14 2013-12-18 奉化市垭特机电科技有限公司 Bottom enhanced heat transfer structure of gravity assisted heat pipe
CN104764349A (en) * 2015-04-17 2015-07-08 广东新创意科技有限公司 Composite type liquid suction core ultra-thin heat pipe and manufacturing method thereof
CN115604976A (en) * 2021-07-09 2023-01-13 中兴智能科技南京有限公司（Cn） Radiator and communication equipment
CN115568160B (en) * 2022-04-02 2023-08-18 荣耀终端有限公司 Heat radiation structure and electronic equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2613740Y (en) * 2003-04-17 2004-04-28 鸿富锦精密工业（深圳）有限公司 Heat pipe
JP2005077052A (en) * 2003-09-03 2005-03-24 Hitachi Metals Ltd Flat heat pipe
CN1832156A (en) * 2005-03-09 2006-09-13 台达电子工业股份有限公司 Structure of heat sink and manufacturing method
CN1858540A (en) * 2005-04-29 2006-11-08 乐金电子（昆山）电脑有限公司 Heat radiation conduit
CN102261862A (en) * 2011-07-01 2011-11-30 中兴通讯股份有限公司 Flat heat pipe heat exchanger

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1747639A (en) * 2004-09-06 2006-03-15 台达电子工业股份有限公司 Radiator and its production thereof
CN100454527C (en) * 2005-01-11 2009-01-21 台达电子工业股份有限公司 Radiator and its making method
TWI261659B (en) * 2005-03-25 2006-09-11 Delta Electronics Inc Manufacturing method of heat dissipation apparatus
CN100334930C (en) * 2005-07-18 2007-08-29 华中科技大学 Plane capillary core evaporimeter for CPL
TWI459889B (en) * 2008-09-18 2014-11-01 Pegatron Corp Vapor chamber
CN101738119B (en) * 2009-11-06 2011-08-03 东南大学 Liquid absorbing core for embedded channels of heat pipe
CN101762196A (en) * 2010-01-08 2010-06-30 东南大学 Multi-channel wick-embedded flat plate heat pipe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2613740Y (en) * 2003-04-17 2004-04-28 鸿富锦精密工业（深圳）有限公司 Heat pipe
JP2005077052A (en) * 2003-09-03 2005-03-24 Hitachi Metals Ltd Flat heat pipe
CN1832156A (en) * 2005-03-09 2006-09-13 台达电子工业股份有限公司 Structure of heat sink and manufacturing method
CN1858540A (en) * 2005-04-29 2006-11-08 乐金电子（昆山）电脑有限公司 Heat radiation conduit
CN102261862A (en) * 2011-07-01 2011-11-30 中兴通讯股份有限公司 Flat heat pipe heat exchanger

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