WO2015144079A1 - 翅片以及具有该翅片的热交换器和冰箱 - Google Patents

翅片以及具有该翅片的热交换器和冰箱 Download PDF

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Publication number
WO2015144079A1
WO2015144079A1 PCT/CN2015/075168 CN2015075168W WO2015144079A1 WO 2015144079 A1 WO2015144079 A1 WO 2015144079A1 CN 2015075168 W CN2015075168 W CN 2015075168W WO 2015144079 A1 WO2015144079 A1 WO 2015144079A1
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WIPO (PCT)
Prior art keywords
fin
inner edge
fins
heat exchanger
refrigerator
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PCT/CN2015/075168
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English (en)
French (fr)
Inventor
燕统钧
张奎
王晶
李春阳
陶海波
刘建如
Original Assignee
海尔集团公司
青岛海尔股份有限公司
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Application filed by 海尔集团公司, 青岛海尔股份有限公司 filed Critical 海尔集团公司
Publication of WO2015144079A1 publication Critical patent/WO2015144079A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • 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
    • F28D15/0275—Arrangements for coupling heat-pipes together or with other structures, e.g. with base blocks; Heat pipe cores
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/36—Selection of materials, or shaping, to facilitate cooling or heating, e.g. heatsinks
    • H01L23/367—Cooling facilitated by shape of device
    • H01L23/3672—Foil-like cooling fins or heat sinks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/42—Fillings or auxiliary members in containers or encapsulations selected or arranged to facilitate heating or cooling
    • H01L23/427—Cooling by change of state, e.g. use of heat pipes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/34—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements
    • H01L23/46—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids
    • H01L23/467—Arrangements for cooling, heating, ventilating or temperature compensation ; Temperature sensing arrangements involving the transfer of heat by flowing fluids by flowing gases, e.g. air
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Definitions

  • the present invention relates to the emission of heat, and more particularly to a fin for dissipating heat or cooling and a heat exchanger and refrigerator having the fin.
  • the heat sink also called a fin, occupies an important role in the structure of the heat sink, and is widely used in the technical fields of refrigerators, air conditioners, and the like, and can also be applied to heat dissipation of a CPU.
  • the commonly used heat sink materials are copper and aluminum alloy, both of which have their advantages and disadvantages. Copper has good thermal conductivity, but it is more expensive, has higher processing difficulty, has a smaller heat capacity, and is easily oxidized. Pure aluminum is too soft to be used directly, and aluminum alloys are used to provide sufficient hardness. The advantages of aluminum alloys are low cost and light weight, but the thermal conductivity is much worse than copper.
  • heat sink types are aluminum extruded heat sink, aluminum cast heat sink, aluminum cutting heat sink, copper cutting heat sink, copper stack heat sink, copper heat sink, copper heat sink, toothed heat sink, copper and aluminum Fit the heat sink with the heat pipe, etc.
  • the evaluation of the quality of a heat sink depends largely on the heat absorption capacity and heat transfer capacity of the heat sink itself.
  • the use of heat sinks to increase the area of heat dissipation is the most common and basic method of thermal management technology. With the use of semiconductor refrigerators, the difficulty of heat dissipation design is getting higher and higher.
  • the existing heat sinks are all rectangular fins, and the product structure is single, the heat exchange efficiency is low, and the effect is poor, thereby causing the refrigerator to have a slow cooling rate and low efficiency.
  • a further object of the first aspect of the invention is to maximize the heat transfer efficiency of the fins.
  • An object of the third aspect of the present invention is to provide a refrigerator having the above heat exchanger.
  • a fin having a first half and a second half that are symmetrical about a geometrically symmetric axis, wherein
  • the angle between the inner edge and the outer edge formed by the first half and the second half at the joint intersecting the geometric symmetry axis are both greater than 120°;
  • a length of a geometrical connection between an inner edge end of the protruding end of the first half and an inner edge end of the protruding end of the second half is greater than a combination of the first half and the second half The distance from the outer vertex to the geometric connection.
  • the angle between the inner edge angle and the outer edge is 170° to 178°.
  • the ratio of the length to the distance is 6 to 10.
  • the inner edge and the outer edge of the joint of the first half and the second half are arc transition surfaces.
  • the fin further includes a plurality of holes, each of the holes penetrating the upper surface and the lower surface of the first half or the second half, and the hole wall of each of the holes protrudes from the upper surface .
  • an inner edge of each of the first half and the second half includes:
  • a lock bar slot is formed between the first inner edge segment and the second inner edge segment.
  • the fin further includes a connection fixing mechanism configured to fix the plurality of the fins to each other to form a fin group.
  • a heat exchanger comprising an axial fan, a hook and a plurality of any of the above fins, wherein
  • An end surface of the cylindrical wall of the axial fan abuts against an inner edge of the fin set
  • the hook is configured to secure the axial flow fan to the set of fins.
  • a refrigerator comprising any of the above heat exchangers.
  • the refrigerator further includes a backing plate configured such that a rear wall thereof is parallel to the geometrical line; wherein a joint portion of the first half and the second half of each of the fin groups is outside The apexes all abut against the back wall of the backing plate.
  • the fin of the present invention and the heat exchanger and the refrigerator having the same have a particularly fin structure, remarkably improve the heat exchange efficiency of the fin, and remarkably improve the performance of the heat exchanger and the refrigerator.
  • the fin of the present invention and the heat exchanger having the fin and the hole wall of the plurality of holes in the refrigerator protrude from the upper surface of the fin, the heat exchange area of the fin and the heat conductor is remarkably improved.
  • the invention has a connection fixing mechanism, which significantly improves the firmness of the fin group formed by the fixed support between the fins.
  • FIG. 1 is a schematic front view of a fin according to an embodiment of the present invention.
  • Figure 2 is a schematic bottom view of the fin of Figure 1;
  • Figure 3 is a schematic left side view of the fin of Figure 1;
  • Figure 4 is a schematic perspective view of the fin shown in Figure 1;
  • Figure 5 is a schematic partial enlarged view of A in the fin shown in Figure 4.
  • Figure 6 is a schematic perspective view of a fin set having the fins in accordance with one embodiment of the present invention.
  • Figure 7 is a schematic perspective view of a hook in accordance with one embodiment of the present invention.
  • Figure 8 is a schematic partial enlarged view of B in the fin shown in Figure 4.
  • Figure 9 is a schematic front view of a heat exchanger having the fins in accordance with one embodiment of the present invention.
  • Figure 10 is a schematic plan view of the heat exchanger shown in Figure 9;
  • FIG 11 is a schematic exploded view of a heat exchanger having the fins in accordance with one embodiment of the present invention.
  • Figure 12 is a schematic front view of a heat exchanger having the fins in accordance with one embodiment of the present invention.
  • Figure 13 is a schematic left side view of the heat exchanger shown in Figure 12;
  • Figure 14 is a schematic cross-sectional view of a refrigerator having the fins in accordance with one embodiment of the present invention.
  • FIG. 1 is a schematic front view of a fin according to an embodiment of the present invention
  • FIG. 2 is a schematic bottom view of the fin shown in FIG. 1
  • FIG. 3 is a schematic left side view of the fin shown in FIG. It is a schematic perspective view of the fin shown in Fig. 1.
  • an embodiment of the present invention provides a novel structure of a fin 100 having first and second halves symmetrical about a geometric axis of symmetry. Department 20.
  • the angle between the inner edge and the outer edge of the first half 10 and the second half 20 formed at the joint intersecting the geometric symmetry axis are both greater than 120°.
  • the length of the geometrical connection between the inner edge end of the projecting end of the first half 10 and the inner edge end of the projecting end of the second half 20 is greater than the outer apex of the joint of the first half 10 and the second half 20 The distance to the geometric connection so that the length of the fin is greater than the width of the fin.
  • the angle between the inner and outer edges is 170 to 178, for example 173 and 175.
  • the ratio of length to distance is 6 to 10, for example 8 or 9 is often selected.
  • the inner edge and the outer edge of the joint portion of the first half portion 10 and the second half portion 20 are arc-shaped transition faces.
  • the inner edge of each of the first half 10 and the second half 20 comprises: a first inner edge segment 11 from the respective first half 10 or second half
  • the inner edge end of the projecting end of 20 extends along the geometric line
  • the second inner edge segment 12 is angled from the joint of the respective first half 10 or the second half 20 to the geometrical line at an oblique angle
  • the end of the first inner edge section 11 extends; and a lock bar slot 13 formed between the first inner edge section 11 and the second inner edge section 12.
  • Fig. 5 shows a schematic partial enlarged view of A in the fin shown in Fig. 4, showing the shape of the lock bar notch 13.
  • FIG. 6 is a schematic perspective view of a fin set having the fins in accordance with one embodiment of the present invention.
  • the lock bar notches 13 constitute a groove that penetrates the fin set 210.
  • the axial fan 220 can be hooked to the fin set 210 by the hooks 230.
  • FIG. 7 is a schematic perspective view of a hook in accordance with one embodiment of the present invention.
  • the hook 230 may include a lock bar and a hook mounted at both ends of the lock bar, the lock bar is installed in the groove, the hook is hooked on the end of the cylinder of the axial fan 220, and the axial fan 220 abuts against the inner edge of the fin set 210 and is configured to blow airflow from the outer edge of the forward facing fin set 210 of the inner edge of the fin set 210.
  • the end surface of the cylindrical wall of the axial flow fan 220 can be abutted against the first inner edge section 11 to ensure the end surface of the cylindrical wall of the axial flow fan 220 and the first half 10 and the second half.
  • the apex at the junction of 20 has a certain gap.
  • FIG. 8 is a schematic partial enlarged view of B in the fin shown in Figure 4.
  • the fin 100 further includes a connection fixing mechanism 40 configured to fixedly support the plurality of fins 100 to each other to form the fin group 210.
  • the inner or outer edge of the fin 100 has a rectangular recess.
  • Each of the connection fixing mechanisms 40 includes a bump 41 and a trapezoidal support block 42.
  • the trapezoidal support block 42 has a trapezoidal block, a square block located at a lower portion of the trapezoidal block, and a trapezoidal opening whose opening direction is downward.
  • the height of the trapezoidal block is the sum of the thickness of one of the bumps 41 and the pitch of the adjacent two fins 100.
  • the height of the square block is equal to the height of the trapezoidal block; one surface of the square block may be in the same plane as the bottom surface of the rectangular groove.
  • the lower bottom surface of the trapezoidal opening may be in the same plane as the lower bottom surface of the square block, and the two sides of the trapezoidal opening are respectively parallel to the two side faces of the trapezoidal block, and the height of the trapezoidal opening is the thickness of the two convex blocks 41 and the adjacent two wings.
  • the sum of the pitches of the sheets 100, the length of the upper bottom surface of the trapezoidal opening is greater than or equal to the width of the bump 41, and the length of the lower bottom surface of the trapezoidal opening is greater than or equal to the length of the lower bottom surface of the trapezoidal block.
  • the bump 41 is located in the middle of the lower bottom surface of the trapezoidal opening.
  • the fin set 210 may include first fins, second fins, third fins, and fourth fins that are sequentially disposed upward. When mounted, the trapezoidal block of the first fin is located within the trapezoidal opening of the second fin and its upper surface abuts against the lower surface of the bump 41 of the third fin.
  • the upper surface of the bump 41 of the second fin abuts against the upper surface of the trapezoidal opening of the first fin.
  • the trapezoidal block of the second fin is located within the trapezoidal opening of the third fin and its upper surface abuts against the lower surface of the bump 41 of the fourth fin.
  • the upper surface of the bump 41 of the third fin abuts against the upper surface of the trapezoidal opening of the second fin.
  • the trapezoidal block of the third fin is located within the trapezoidal opening of the fourth fin.
  • connection fixing mechanisms 40 are symmetrically disposed on both sides of the geometric symmetry axis of the fin 100, and are located between the lock bar notch 13 and the joint portion of the first half 10 and the second half 20 so as to be blown
  • the air flow is split into different channels by the connection fixing mechanism 40.
  • the outer apex of the fin group 210 formed by the fins 100 may be abutted against the rear wall of the back plate 300 of the refrigerator to form a gap-grading air flow passage with the rear wall of the back plate 300, or The gradual flow channel is said to increase the contact space between the fin 100 and the surrounding environment, thereby effectively improving the heat exchange efficiency.
  • the fin 100 further includes a plurality of holes 30, each of which extends through the upper and lower surfaces of the first half 10 or the second half 20, and the walls of each of the holes 30 Highlight the upper surface.
  • the hole 30 may be formed by a punching/punching process from the lower surface of the fin 100 to the upper surface, and the folded edge formed is a part of the hole wall of the hole 30, that is, the hole wall of each hole 30 protrudes from the upper surface to increase
  • the axis of the heat pipe 240 of the heat exchanger 200 having the fin 100 is perpendicular to the upper and lower surfaces of the first half 10 or the second half 20 to facilitate the fin 100. Installation and processing as well as the flow of cooling airflow.
  • the hole 30 can also be stamped into a slanted hole, ie, a hole
  • the angle between the axis of the 30 and the upper surface is an acute angle, so that the fin 100 is obliquely fixed on the heat conductor to increase the flow speed of the air and improve the heat dissipation efficiency.
  • oblique mounting of the thermal conductor relative to the fins 100 can also be achieved when the fins are relatively thin and the axis of the holes is perpendicular to the upper surface of the fins. Specifically, as shown in FIGS.
  • the upper surface and the lower surface of the first half 10 or the second half 20 are obliquely disposed with respect to the axis of the heat pipe 240 of the heat exchanger 200 having the fin 100, to The heat exchange efficiency of the heat exchanger 200 is increased in some cases.
  • an embodiment of the present invention also provides a heat exchanger 200. It includes an axial fan 220, a hook 230, and a plurality of fins 100 in any of the above embodiments.
  • the plurality of fins 100 are correspondingly disposed in parallel to form the fin set 210.
  • the end face of the barrel wall of the axial fan 220 abuts against the inner edge of the fin set 210.
  • the hook 230 is configured to secure the axial fan 220 to the fin set 210.
  • FIGS. 9 to 13 wherein the fixing plate 250 is not shown in both FIG. 9 and FIG.
  • the heat exchanger 200 in the embodiment of the present invention further includes a heat pipe 240 and a fixing plate 250.
  • each of the fins 100 in the fin set 210 is perpendicular to the axis of the heat pipe 240 to form a straight fin heat exchanger.
  • each of the fins 100 in the fin set 210 is disposed obliquely with respect to the axis of the heat pipe 240 to constitute an oblique fin heat exchanger.
  • an embodiment of the invention further provides a refrigerator comprising the heat exchanger 200 of any of the above embodiments.
  • the refrigerator of the embodiment of the present invention further includes a backing plate 300 configured such that its rear wall is parallel to the geometric line.
  • the outer vertices at the joint of the first half 10 and the second half 20 of each fin in the fin set 210 abut against the rear wall of the back plate 300 to form a rear wall with the back plate 300. Gradient flow channel.
  • the refrigerator may be preferably a semiconductor refrigerator that is cooled by a semiconductor refrigeration chip, and further includes a semiconductor refrigerating sheet 400 whose thermal end face is in contact with a surface of the fixing plate 250 to facilitate heat transfer from the hot end surface of the semiconductor refrigerating sheet 400. Go to heat exchanger 200.

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  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
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  • Condensed Matter Physics & Semiconductors (AREA)
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Abstract

一种翅片（100）以及具有该翅片（100）的热交换器（200）和冰箱。该翅片（100）具有关于几何对称轴线对称的第一半部（10）和第二半部（20），其中，第一半部（10）与第二半部（20）在相交于几何对称轴线的结合部处形成的内缘夹角和外缘夹角均大于120°；第一半部（10）的伸出端的内缘端点与第二半部（20）的伸出端的内缘端点之间几何连线的长度大于第一半部（10）与第二半部（20）的结合部处外顶点至几何连线的距离。该翅片结构显著地提高了翅片（100）的换热效率以及热交换器（200）和冰箱的性能。

Description

翅片以及具有该翅片的热交换器和冰箱 技术领域
本发明涉及热量的散发，特别是涉及一种用于散热或散冷的翅片以及具有该翅片的热交换器和冰箱。
背景技术
散热片，也可称为翅片，其在散热器的构成中占有重要的角色，其应用广泛，可用于冰箱、空调等技术领域，也可应用于cpu的散热等。目前常用的散热片材质是铜和铝合金，二者各有其优缺点。铜的导热性好，但价格较贵，加工难度较高，热容量较小，而且容易氧化。而纯铝太软，不能直接使用，都是使用铝合金才能提供足够的硬度。铝合金的优点是价格低廉，重量轻，但导热性比铜要差很多。常用的散热片的类型有铝挤型散热片、铝铸造散热片、铝切削散热片、铜切削散热片、铜堆栈散热片、嵌铜散热片、镶铜散热片、插齿散热片、铜铝与热管嵌合散热片等。但是除风扇的主动散热以外，评定一个散热器的好坏，很大程度上取决于散热片本身的吸热能力和热传导能力。利用散热片来增加散热的面积是热管理技术中最常见也是最基本的方式，随着半导体冰箱的使用，散热设计的困难度越来越高。现有的散热片均为长方体翅片，产品结构单一、换热效率低且效果差，进而造成冰箱的制冷速度慢、效率低。
发明内容
本发明第一方面的一个目的旨在克服现有技术中的翅片的至少一个缺陷，提供一种结构新颖的翅片。
本发明第一方面的一个进一步的目的是要尽量提高翅片的传热效率。
本发明第二方面的一个目的是要提供一种具有上述翅片的热交换器。
本发明第三方面的一个目的是要提供一种具有上述热交换器的冰箱。
根据本发明的第一方面，提供了一种翅片，其具有关于一几何对称轴线对称的第一半部和第二半部，其中
所述第一半部与所述第二半部在相交于所述几何对称轴线的结合部处形成的内缘夹角和外缘夹角均大于120°；
所述第一半部的伸出端的内缘端点与所述第二半部的伸出端的内缘端点之间几何连线的长度大于所述第一半部与所述第二半部的结合部处外顶点至所述几何连线的距离。
可选地，所述内缘夹角和所述外缘夹角均为170°至178°。
可选地，所述长度与所述距离的比值为6至10。
可选地，所述第一半部与所述第二半部的结合部的内边缘和外边缘均为圆弧过渡面。
可选地，翅片还包括多个孔洞，每个所述孔洞贯穿所述第一半部或所述第二半部的上表面和下表面，且每个所述孔洞的洞壁突出上表面。
可选地，所述第一半部和所述第二半部中每一个的内边缘包括：
第一内边缘段，其从相应所述第一半部或所述第二半部的伸出端的内缘端点沿所述几何连线延伸；
第二内边缘段，其从相应所述第一半部或所述第二半部的结合部相对于所述几何连线成一倾斜夹角地向相应第一内边缘段的末端延伸；以及
形成在所述第一内边缘段与所述第二内边缘段之间的锁杆槽口。
可选地，翅片还包括连接固定机构，配置成使多个所述翅片之间相互固定支撑以形成翅片组。
根据本发明的第二方面，提供了一种热交换器，其包括轴流风扇、挂钩和多个上述任一种翅片，其中
多个所述翅片相对应的平行设置以形成翅片组；
所述轴流风扇的筒壁的端面抵靠在所述翅片组的内边缘上；
所述挂钩配置成将所述轴流风扇固定在所述翅片组上。
根据本发明的第三方面，提供了一种冰箱，包括上述任一种热交换器。
可选地，冰箱还包括背板，配置成其后壁平行于所述几何连线；其中，所述翅片组中的各个翅片的第一半部与第二半部的结合部处外顶点均抵靠在所述背板的后壁上。
本发明的翅片以及具有该翅片的热交换器和冰箱因为具有特别的翅片结构，显著地提高了翅片的换热效率，显著提高了热交换器和冰箱的性能。
进一步地，由于本发明的翅片以及具有该翅片的热交换器和冰箱中的多个孔洞的洞壁突出翅片的上表面，显著提高了翅片与导热体的换热面积。
进一步地，由于本发明的翅片以及具有该翅片的热交换器和冰箱中翅片 具有连接固定机构，显著提高了翅片之间相互固定支撑以形成的翅片组的牢固性。
根据下文结合附图对本发明具体实施例的详细描述，本领域技术人员将会更加明了本发明的上述以及其他目的、优点和特征。
附图说明
后文将参照附图以示例性而非限制性的方式详细描述本发明的一些具体实施例。附图中相同的附图标记标示了相同或类似的部件或部分。本领域技术人员应该理解，这些附图未必是按比例绘制的。附图中：
图1是根据本发明一个实施例的翅片的示意性主视图；
图2是图1所示翅片的示意性仰视图；
图3是图1所示翅片的示意性左视图；
图4是图1所示翅片的示意性立体图；
图5是图4所示翅片中的A处的示意性局部放大图；
图6是根据本发明一个实施例的具有该翅片的翅片组的示意性立体图；
图7是根据本发明一个实施例的挂钩的示意性立体图；
图8是图4所示翅片中的B处的示意性局部放大图；
图9是根据本发明一个实施例的具有该翅片的热交换器的示意性主视图；
图10是图9所示热交换器的示意性俯视图；
图11是根据本发明一个实施例的具有该翅片的热交换器的示意性爆炸图；
图12是根据本发明一个实施例的具有该翅片的热交换器的示意性主视图；
图13是图12所示热交换器的示意性左视图；
图14是根据本发明一个实施例的具有该翅片的冰箱的示意性剖视图。
具体实施方式
图1是根据本发明一个实施例的翅片的示意性主视图；图2是图1所示翅片的示意性仰视图；图3是图1所示翅片的示意性左视图；图4是图1所示翅片的示意性立体图。如图1至图4所示，本发明实施例提供了一种结构新颖的翅片100，其具有关于一几何对称轴线对称的第一半部10和第二半 部20。特别地，第一半部10与第二半部20在相交于几何对称轴线的结合部处形成的内缘夹角和外缘夹角均大于120°。第一半部10的伸出端的内缘端点与第二半部20的伸出端的内缘端点之间几何连线的长度大于第一半部10与第二半部20的结合部处外顶点至几何连线的距离，以使翅片的长度大于翅片的宽度。
在本发明的一个可选实施例中，内缘夹角和外缘夹角均为170°至178°，例如可选择173°和175°。长度与距离的比值为6至10，例如常选择8或9。第一半部10与第二半部20的结合部的内边缘和外边缘均为圆弧过渡面。
在本发明实施例的翅片100中，第一半部10和第二半部20中每一个的内边缘包括：第一内边缘段11，其从相应第一半部10或第二半部20的伸出端的内缘端点沿几何连线延伸；第二内边缘段12，其从相应第一半部10或第二半部20的结合部相对于几何连线成一倾斜夹角地向相应第一内边缘段11的末端延伸；以及形成在第一内边缘段11与第二内边缘段12之间的锁杆槽口13。图5示出了图4所示翅片中的A处的示意性局部放大图，其示出了锁杆槽口13的形状。
图6是根据本发明一个实施例的具有该翅片的翅片组的示意性立体图。如图6所示，当多个翅片100相对应的平行设置以形成翅片组210后，锁杆槽口13组成贯通翅片组210的沟槽。轴流风扇220可通过挂钩230钩挂在翅片组210上。
图7是根据本发明一个实施例的挂钩的示意性立体图。如图7所示，挂钩230可包括锁杆和安装在锁杆两端的弯钩，锁杆安装在沟槽内，弯钩钩挂在轴流风扇220的圆筒的端部，且轴流风扇220抵靠在翅片组210的内边缘上且配置成从翅片组210的内边缘的前方向翅片组210的外边缘吹送气流。在本发明实施例中可将轴流风扇220的筒壁的端面抵靠在第一内边缘段11上，以保证轴流风扇220的筒壁的端面和第一半部10与第二半部20的结合部处内顶点具有一定的间隙。
图8是图4所示翅片中的B处的示意性局部放大图。如图8所示，翅片100还包括连接固定机构40，其配置成使多个翅片100之间相互固定支撑以形成翅片组210。在本发明实施例中，翅片100的内边缘或外边缘上具有矩形凹槽。每个连接固定机构40包括凸块41和梯形支撑块42。其中凸块41 突出于矩形凹槽的底面。梯形支撑块42具有梯形块、位于梯形块下部的方形块和开口方向向下的梯形开口。梯形块的高度为一个凸块41的厚度和相邻两个翅片100的间距之和。方形块的高度等于梯形块的高度；方形块的一个表面可与矩形凹槽的底面位于同一平面。梯形开口的下底面可与方形块的下底面位于同一平面，梯形开口的两个侧面分别与梯形块的两个侧面平行，梯形开口的高度为两个凸块41的厚度和相邻两个翅片100的间距之和，梯形开口的上底面的长度大于或等于凸块41的宽度，梯形开口的下底面的长度大于或等于梯形块的下底面的长度。凸块41位于梯形开口的下底面的中部。翅片组210可包括依次向上设置的第一翅片、第二翅片、第三翅片和第四翅片。安装时，第一翅片的梯形块位于第二翅片的梯形开口内且其上表面紧贴第三翅片的凸块41的下表面。第二翅片的凸块41的上表面紧贴第一翅片的梯形开口的上表面。第二翅片的梯形块位于第三翅片的梯形开口内且其上表面紧贴第四翅片的凸块41的下表面。第三翅片的凸块41的上表面紧贴第二翅片的梯形开口的上表面。第三翅片的梯形块位于第四翅片的梯形开口内。以此类推，实现翅片组210中各个翅片间相互固定支撑。
多个连接固定机构40对称设置在翅片100的几何对称轴线的两侧，且位于锁杆槽口13和第一半部10与第二半部20的结合部之间，以使吹送过来的气流被连接固定机构40分流成不同的通道。参见图14，可将上述翅片100形成的翅片组210的外顶点抵靠在冰箱的背板300的后壁上，以与背板300的后壁之间形成间隙渐变的气流通道，或者说渐变形气流通道，从而增大翅片100与周围环境接触空间，有效提高换热效率。
在本发明的一些实施例中，翅片100还包括多个孔洞30，每个孔洞30贯穿第一半部10或第二半部20的上表面和下表面，且每个孔洞30的洞壁突出上表面。可采用从翅片100的下表面向上表面的冲压/冲切工艺形成孔洞30，且形成的翻折边为孔洞30的洞壁的一部分，即每个孔洞30的洞壁突出上表面，以增大与热管等类型的导热体的接触面积和/或防止导热体穿过孔洞30时对导热体造成损伤，例如防止划破热管造成其内部的制冷剂泄露等。如图9至图11所示，具有该翅片100的热交换器200的热管240的轴线垂直于第一半部10或第二半部20的上表面和下表面，以便于翅片100的安装和加工以及散热气流的流动。
在本发明的另一些实施例中，孔洞30也可以被冲压成倾斜孔，即孔洞 30的轴线与上表面的夹角为锐角，以实现翅片100倾斜地固定在导热体上，以增加空气的流动速度，提升散热效率。本领域技术人员所熟知的，由于翅片比较薄，孔洞的轴线与翅片上表面垂直时，也可以实现导热体相对于翅片100的倾斜安装。具体地，如图12和图13所示，第一半部10或第二半部20的上表面和下表面相对于具有该翅片100的热交换器200的热管240的轴线倾斜设置，以在某些场合提高热交换器200的换热效率。
根据本发明的第二方面，本发明实施例还提供了一种热交换器200。其包括轴流风扇220、挂钩230和多个上述任一实施例中的翅片100。特别地，多个翅片100相对应的平行设置以形成翅片组210。轴流风扇220的筒壁的端面抵靠在翅片组210的内边缘上。挂钩230配置成将轴流风扇220固定在翅片组210上。如图9至13所示，其中，图9和图10中均未示出固定板250。本发明实施例中的热交换器200还包括热管240和固定板250。热管240的一端穿过翅片组210，另一端固定在固定板250上，以将固定板250上的热量传递到翅片100。在图9至图11中，翅片组210中的各个翅片100垂直于热管240的轴线，以构成直翅片热交换器。在本发明的另一些实施例中，在图12和图13中，翅片组210中的各个翅片100相对于热管240的轴线倾斜设置，以构成斜翅片热交换器。
根据本发明的第三方面，本发明实施例还提供了一种冰箱，其包括上述任一实施例中的热交换器200。如图14所示，本发明实施例的冰箱还包括背板300，配置成其后壁平行于几何连线。翅片组210中的各个翅片的第一半部10与第二半部20的结合部处外顶点均抵靠在背板300的后壁上，以与背板300的后壁之间形成渐变形气流通道。冰箱可优先为采用半导体制冷芯片进行制冷的半导体冰箱，其还包括半导体制冷片400，其热端面与固定板250的一个表面接触抵靠，有利于将半导体制冷片400的热端面产生的热量传递到热交换器200上。
至此，本领域技术人员应认识到，虽然本文已详尽示出和描述了本发明的多个示例性实施例，但是，在不脱离本发明精神和范围的情况下，仍可根据本发明公开的内容直接确定或推导出符合本发明原理的许多其他变型或修改。因此，本发明的范围应被理解和认定为覆盖了所有这些其他变型或修改。

Claims (10)

  1. 一种翅片，具有关于一几何对称轴线对称的第一半部和第二半部，其中
    所述第一半部与所述第二半部在相交于所述几何对称轴线的结合部处形成的内缘夹角和外缘夹角均大于120°；
    所述第一半部的伸出端的内缘端点与所述第二半部的伸出端的内缘端点之间几何连线的长度大于所述第一半部与所述第二半部的结合部处外顶点至所述几何连线的距离。
  2. 根据权利要求1所述的翅片，其中
    所述内缘夹角和所述外缘夹角均为170°至178°。
  3. 根据权利要求2所述的翅片，其中
    所述长度与所述距离的比值为6至10。
  4. 根据权利要求1所述的翅片，其中
    所述第一半部与所述第二半部的结合部的内边缘和外边缘均为圆弧过渡面。
  5. 根据权利要求1所述的翅片，还包括：
    多个孔洞，每个所述孔洞贯穿所述第一半部或所述第二半部的上表面和下表面，且每个所述孔洞的洞壁突出上表面。
  6. 根据权利要求1所述的翅片，其中
    所述第一半部和所述第二半部中每一个的内边缘包括：
    第一内边缘段，其从相应所述第一半部或所述第二半部的伸出端的内缘端点沿所述几何连线延伸；
    第二内边缘段，其从相应所述第一半部或所述第二半部的结合部相对于所述几何连线成一倾斜夹角地向相应第一内边缘段的末端延伸；以及
    形成在所述第一内边缘段与所述第二内边缘段之间的锁杆槽口。
  7. 根据权利要求1所述的翅片，还包括：
    连接固定机构，配置成使多个所述翅片之间相互固定支撑以形成翅片组。
  8. 一种热交换器，包括轴流风扇、挂钩和多个如权利要求1-7中任一项所述的翅片，其中
    多个所述翅片相对应的平行设置以形成翅片组；
    所述轴流风扇的筒壁的端面抵靠在所述翅片组的内边缘上；
    所述挂钩配置成将所述轴流风扇固定在所述翅片组上。
  9. 一种冰箱，包括如权利要求8所述的热交换器。
  10. 根据权利要求9所述的冰箱，还包括：
    背板，配置成其后壁平行于所述几何连线；其中
    所述翅片组中的各个翅片的第一半部与第二半部的结合部处外顶点均抵靠在所述背板的后壁上。
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