WO2018145504A1 - 翅片式蒸发器和制冷设备 - Google Patents

翅片式蒸发器和制冷设备 Download PDF

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Publication number
WO2018145504A1
WO2018145504A1 PCT/CN2017/113170 CN2017113170W WO2018145504A1 WO 2018145504 A1 WO2018145504 A1 WO 2018145504A1 CN 2017113170 W CN2017113170 W CN 2017113170W WO 2018145504 A1 WO2018145504 A1 WO 2018145504A1
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Prior art keywords
evaporator
fins
tube
fin
straight
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PCT/CN2017/113170
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English (en)
French (fr)
Inventor
谢良柱
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.)
Hefei Hualing Co Ltd
Midea Group Co Ltd
Hefei Midea Refrigerator Co Ltd
Original Assignee
Hefei Hualing Co Ltd
Midea Group Co Ltd
Hefei Midea Refrigerator Co Ltd
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Publication of WO2018145504A1 publication Critical patent/WO2018145504A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • 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
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
    • 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
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators

Definitions

  • the present invention relates to the field of household appliances, and in particular to a finned evaporator and a refrigeration apparatus.
  • the evaporator is fabricated using conventional fins, and during cooling, the refrigerant flows out from the upper portion to the lower portion of the evaporation tube, and the air flows out from the lower portion of the evaporator to the upper side, and the evaporator in the related art is at least The following technical defects exist:
  • the refrigerant enters from the top of the evaporation tube and flows from top to bottom along the evaporator straight tube to the bottom.
  • the initial region 102 of the evaporation tube is at the top, is subjected to gravity, has small flow resistance, low heat exchange efficiency, and the evaporator is close to
  • the refrigerant flow rate at the inlet end is fast, resulting in low heat exchange efficiency;
  • Another object of the present invention is to provide a refrigeration apparatus.
  • an embodiment of the first aspect of the present invention provides a fin type evaporator comprising: an evaporation tube comprising a plurality of evaporator straight tubes arranged side by side, and an adjacent evaporator straight tube passing through U Pipe connection, one evaporator of the bottom layer is bent straight and extends to the top to form the evaporation tube
  • the inlet; the plurality of first fins are sleeved on the lower evaporator straight tube, and any one of the first fins is provided with a pre-frozen structure, and the pre-frozen structure is disposed below the oppositely disposed evaporator straight tube.
  • the flow direction of the refrigerant is changed to make the inside of the evaporator tube
  • the refrigerant flows from bottom to top, which improves the heat exchange efficiency of the evaporator.
  • the initial portion of the evaporation tube can be separated from the effective heat exchange area, thereby improving the utilization rate of the heat exchange area, and
  • the plurality of first fins disposed on the bottom straight evaporator tube can seal the frost layer in a designated area, thereby reducing the wind resistance, thereby improving the stability of the system operation.
  • the fin-type evaporator is used for a refrigeration device such as a refrigerator, and the energy-saving effect of a refrigeration device such as a refrigerator is achieved by increasing the heat exchange efficiency of the evaporator.
  • the first fin is provided with a pre-frozen structure.
  • the refrigerant flows out from the lower part of the evaporator to the upper part, is subjected to gravity, has large flow resistance, high heat exchange efficiency, and air flows out from the lower part of the evaporator to the first.
  • the fins make the water vapor in the humid air below the evaporator, and the area without the evaporation tube, that is, the pre-frosting structure, performs pre-frosting, which reduces the frosting of the effective heat exchange portion of the evaporator, thereby reducing the wind resistance and improving the evaporator. System heat exchange efficiency.
  • the fin evaporator in the above embodiment provided by the present invention may further have the following additional technical features:
  • the plurality of first fins are sleeved on the bottommost evaporator straight tube.
  • the frosting structure is added to increase the frosting.
  • the area is such that the water vapor in the air directly pre-frosts on the first fin of the lowest layer, and under the premise of equal amount of water vapor, the pre-frosting structure improves the efficiency of frosting on the first fin, thereby reducing the efficiency.
  • the frost in the effective heat exchange area of the evaporator further reduces the wind resistance and improves work efficiency.
  • one evaporator straight pipe of the top layer is connected to the upwardly bent bending pipe, and the bending pipe has an outlet of the evaporation pipe.
  • the evaporator inlet portion is placed at the lower portion for pre-frosting, and at the same time, at the end near the inlet.
  • the upwardly convex bending tube is arranged to flow upward from the lower portion of the evaporation tube from the refrigerant, and the flow resistance is increased due to gravity, thereby improving the heat exchange efficiency.
  • the first fin includes a rectangular fin
  • the pre-frozen structure is a trapezoidal sheet structure
  • the trapezoidal sheet structure is disposed at a lower end of the rectangular fin.
  • the pre-frosting structure by setting the pre-frosting structure to a trapezoidal structure, the pre-frosting effect is enhanced, so that the water vapor in the humid air is well condensed in the vicinity of the pre-frosting structure of the trapezoidal structure, and the upper evaporator is reduced.
  • the frosting of the straight pipe, thereby reducing the wind resistance, improves the heat exchange efficiency of the evaporator system.
  • the first fin comprises a rectangular fin
  • the pre-frozen structure is at least one separated inverted triangular sheet structure
  • the inverted triangular sheet structure is disposed at a lower end of the rectangular fin.
  • the pre-frozen effect is enhanced by setting the pre-frozen structure to an inverted triangular structure, and at the same time, a sharp corner of the inverted triangular structure is disposed downward, so that the water vapor in the wet air is in an inverted triangular structure.
  • the pre-frosting structure is well condensed nearby.
  • a plurality of inverted triangular structures can be provided, which further reduces the frosting of the upper evaporator straight tube, thereby reducing the wind resistance and improving the heat exchange efficiency of the evaporator system.
  • the method further includes: a plurality of second fins disposed on the evaporator straight tube where the first fin is not disposed.
  • the upper evaporator straight tube plays a good heat exchange function
  • the plurality of second fins are arranged on the straight tube of the evaporator outside the bottom layer, thereby further improving the heat exchange efficiency of the evaporator and enhancing the heat transfer efficiency.
  • any one of the first fins and any one of the second fins are disposed directly in the straight tube, and the spacing between the adjacent two first fins is greater than the adjacent two The spacing between the two fins.
  • the probability reduces the frosting condition, thereby improving the heat exchange efficiency of the evaporator, and at the same time, the spacing between the adjacent two first fins is greater than the spacing between the adjacent two second fins, so that the bottom layer is sleeved on the bottom layer
  • the first fins on the straight tube of the evaporator are more likely to be frosted, and the frost layer is concentrated in the first
  • a pre-frosting structure of the fins further increases the heat exchange efficiency of the upper evaporator straight tube.
  • the first fin and the second fin are at least one of an aluminum alloy member, a copper member, and a stainless steel member.
  • the bottom of the evaporation tube is provided with an air inlet, and the top of the evaporation tube is provided with an air outlet.
  • the air flows from the bottom to the top, and the plurality of first fins are arranged to reduce the upper evaporator straight tube.
  • the frosting condition reduces the wind resistance and improves the heat exchange efficiency of the evaporator system.
  • a duct grille may be provided to guide the airflow to flow from the lower portion of the evaporator to the upper portion, and the first fin is used to make the water vapor in the humid air below the evaporator, and the region without the evaporation tube, that is, the pre-knot
  • the frost structure is pre-frosted, which reduces the frosting of the upper evaporator straight tube, thereby reducing the wind resistance and improving the heat exchange efficiency of the evaporator system.
  • the evaporation tube comprises at least one row and at least three layers, and a spacing between the evaporator straight tube at the bottom layer and the evaporator straight tube of the adjacent upper layer is greater than the evaporation at other adjacent layers. The spacing between the straight tubes.
  • the flow resistance is further improved, the heat exchange efficiency is improved, and at the same time, the frost is knotted in the designated pre-frosting structure.
  • the frosting of the effective heat exchange portion of the evaporator is reduced, thereby reducing the wind resistance, and further improving the heat exchange efficiency of the evaporator.
  • the evaporator comprises three rows and six layers of evaporator straight tubes, the bottommost evaporator straight tube adopts any one of the first fins, and the above five layers of evaporator straight tubes adopt conventional fins, and the evaporator tubes are
  • the inlet directly extends to the bottommost evaporator straight tube, and the distance between the bottommost evaporator straight tube and the evaporator straight tube of the upper layer is greater than the upper and lower distance between the straight tubes of the above five layers of evaporators.
  • a better pre-frosting function is achieved, so that the frost is bonded to the pre-frosting structure of any one of the first fins, thereby improving the heat exchange efficiency of the evaporator and enhancing the performance of the product.
  • An embodiment of the second aspect of the present invention provides a refrigeration apparatus comprising the finned evaporator provided by any one of the first aspects of the present invention.
  • any one of the first fins is provided with a pre-frozen structure.
  • the refrigerant flows out from the lower part of the evaporator to the upper part, is subjected to gravity, has large flow resistance, high heat exchange efficiency, and air is steamed.
  • the lower part of the hair is discharged upwards, and the first fin is used to make the water vapor in the humid air under the evaporator, and the area without the evaporation tube, that is, the pre-frosting structure is pre-frost, which reduces the frosting of the upper evaporator straight tube.
  • the situation reduces the wind resistance, improves the heat exchange efficiency of the evaporator system, further enhances the practicability of the refrigeration equipment, improves the quality of the refrigeration equipment, and provides a good user experience.
  • Figure 1 shows a schematic front view of a finned evaporator circuit of one embodiment of the related art
  • Figure 2 shows a schematic left side view of the finned evaporator of Figure 1;
  • Figure 3 shows a schematic front view of a finned evaporator circuit in accordance with one embodiment of the present invention
  • Figure 4 shows a schematic left side view of the finned evaporator of Figure 3;
  • Figure 5 is a schematic view showing the structure of a first fin according to an embodiment of the present invention.
  • Figure 6 shows a schematic view of the structure of a second fin in accordance with one embodiment of the present invention.
  • 102 evaporation tube initial area 104 evaporator main frosting area, 20 finned evaporator, 202 evaporation tube initial area, 204 evaporator main frosting area, 206 evaporation tube inlet, 208 first fin, 2082 pre-knot Frost structure, 210 outlet of the evaporation tube, 212 second fin.
  • an embodiment of the first aspect of the present invention provides a finned evaporator 20, comprising: an evaporation tube comprising a plurality of evaporator straight tubes arranged side by side, adjacent evaporators are straight The tubes are connected by U-tubes, and one evaporator of the bottom layer is bent and extended to the top to form an inlet 206 of the evaporation tube; a plurality of first fins 208 are sleeved on the lower evaporator tube, any one The first fin 208 is provided with a pre-frozen structure 2082, and the pre-frozen structure 2082 is disposed below the oppositely disposed evaporator straight tube.
  • the refrigerant is changed.
  • the initial region 202 of the evaporation tube is at the bottom of the evaporator, so that the refrigerant in the evaporator tube flows from bottom to top, which improves the heat exchange efficiency of the evaporator.
  • the initial region 202 of the evaporation tube can be effectively exchanged. Separation treatment in the hot area improves the utilization of the heat exchange area.
  • the frost layer can be knotted in a designated area, the evaporator
  • the main frosting area 204 is mainly concentrated on the pre-frozen structure 2082, which reduces the wind resistance, thereby improving the stability of the system operation.
  • the fin-type evaporator 20 is used for a refrigeration device such as a refrigerator, and the energy-saving effect of a refrigeration device such as a refrigerator is achieved by increasing the heat exchange efficiency of the evaporator.
  • the first fin 208 is provided with a pre-frozen structure 2082.
  • the refrigerant flows out from the lower portion of the evaporator to the upper portion, is subjected to gravity, has large flow resistance, high heat exchange efficiency, and air flows out from the lower portion of the evaporator to the upper portion.
  • the water vapor in the humid air is below the evaporator, and the area without the evaporation tube, that is, the pre-frosting structure 2082, performs pre-frosting, which reduces the frosting of the effective heat exchange portion of the evaporator, thereby reducing Wind resistance, improve the heat transfer efficiency of the evaporator system.
  • fin evaporator 20 in the above embodiment provided by the present invention may further have the following additional technical features:
  • the plurality of first fins 208 are sleeved on the bottommost evaporator straight tube.
  • one evaporator straight pipe of the top layer is connected to the upwardly bent bending pipe, and the bending pipe has an outlet 210 of the evaporation pipe.
  • the evaporator inlet portion is placed in the lower portion for pre-frosting, and at the same time, an upwardly convex fold is provided at one end near the inlet.
  • the elbow is realized to flow upward from the lower portion of the evaporation tube from the refrigerant, and the flow resistance is increased due to gravity, thereby improving the heat exchange efficiency.
  • Pre-frozen structures include, but are not limited to, the following settings:
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the first fin 208 includes a rectangular fin
  • the pre-frosting structure 2082 is a trapezoidal sheet structure
  • the trapezoidal sheet structure is disposed on the rectangular wing. The lower end of the piece.
  • the pre-frozen structure 2082 by setting the pre-frozen structure 2082 to a trapezoidal structure, the pre-frosting effect is enhanced, so that the moisture in the moist air is well condensed in the vicinity of the trapezoidal structure pre-frozen structure 2082, reducing the upper layer.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the first fin 208 includes rectangular fins, and the pre-frozen structure 2082 is at least one separated inverted triangular sheet structure, and the inverted triangular sheet structure is disposed on the rectangular fin Lower end.
  • the pre-frosting effect is enhanced, and at the same time, a sharp corner of the inverted triangular structure is disposed downward, so that the water vapor in the wet air is in an inverted triangular structure.
  • the pre-frosting structure 2082 is well condensed nearby.
  • a plurality of inverted triangular structures can be arranged to further reduce the frosting of the upper evaporator straight tube, thereby reducing the wind resistance and improving the heat exchange efficiency of the evaporator system. .
  • the method further includes: a plurality of second fins 212 disposed on the evaporator straight tube where the first fins 208 are not disposed.
  • the upper evaporator straight tube plays a good heat exchange function
  • the plurality of second fins 212 are disposed on the straight tube of the evaporator outside the bottom layer, thereby further improving the heat exchange efficiency of the evaporator and enhancing The performance of the product.
  • any one of the first fins 208 and any one of the second fins 212 are disposed perpendicular to the evaporator straight tube, and the spacing between the adjacent two first fins 208 is greater than the adjacent The spacing between the two second fins 212.
  • any one of the first fins 208 and any one of the second fins 212 perpendicular to the straight tube of the evaporator, when the water vapor flows from bottom to top, a vertical airflow orbit is formed to reduce condensation of the water vapor in the fins.
  • the on-chip probability reduces the frosting condition, thereby improving the heat exchange efficiency of the evaporator, and at the same time, the spacing between adjacent two first fins 208 is greater than the spacing between adjacent two second fins 212,
  • the plurality of first fins 208 disposed on the bottom evaporator tube are more likely to be frosted, and the frost layer is concentrated on the pre-frozen structure 2082 of the first fin 208, thereby improving the heat exchange of the upper evaporator straight tube. effectiveness.
  • the first fin 208 and the second fin 212 are at least one of an aluminum alloy member, a copper member, and a stainless steel member.
  • the bottom of the evaporation tube is provided with an air inlet, and the top of the evaporation tube is provided with an air outlet.
  • a duct grille may be provided to guide the airflow to flow from the lower portion of the evaporator to the upper portion, and the first fin 208 is matched to make the water vapor in the humid air below the evaporator, and the region without the evaporation tube, that is,
  • the frosting structure 2082 performs pre-frosting, which reduces the frosting of the upper evaporator straight tube, thereby reducing the wind resistance and improving the heat exchange efficiency of the evaporator system.
  • the evaporation tube comprises at least one row and at least three layers, and a spacing between the evaporator straight tube at the bottom layer and the evaporator straight tube of the adjacent upper layer is greater than the evaporation at other adjacent layers. The spacing between the straight tubes.
  • the flow resistance is further increased, the heat exchange efficiency is improved, and at the same time, the frost knot is specified in the pre-frosting
  • the structure 2082 reduces the frosting of the effective heat exchange portion of the evaporator, thereby reducing the wind resistance and further improving the heat exchange efficiency of the evaporator.
  • the evaporator comprises three rows and six layers of evaporator straight tubes, and the bottommost evaporator straight tube adopts any one of the first fins 208, and the above five layers of evaporator straight tubes adopt conventional fins, evaporator tubes
  • the inlet directly extends to the bottommost evaporator straight tube, and the distance between the bottommost evaporator straight tube and the evaporator straight tube above it is greater than the upper and lower distance between the above five layers of evaporator straight tubes, through the above scheme
  • a better pre-frosting function is achieved, so that the frost is bonded to the pre-frozen structure 2082 of any one of the first fins 208, thereby improving the heat exchange efficiency of the evaporator and enhancing the performance of the product.
  • An embodiment of the second aspect of the present invention provides a refrigeration apparatus comprising the finned evaporator provided by any one of the first aspects of the present invention.
  • any one of the first fins is provided with a pre-frozen structure.
  • the refrigerant flows out from the lower portion of the evaporator to the upper portion, is subjected to gravity, has large flow resistance, high heat exchange efficiency, and air from the lower portion to the upper portion of the evaporator.
  • the water vapor in the humid air is below the evaporator, and the area without the evaporation tube, that is, the pre-frosting structure is pre-frosted, which reduces the frosting of the upper evaporator straight tube, and then reduces
  • the small wind resistance improves the heat exchange efficiency of the evaporator system, further enhances the practicability of the refrigeration equipment, improves the quality of the refrigeration equipment, and brings a good user experience.
  • the terms “first”, “second”, and “third” are used for the purpose of description only, and are not to be construed as indicating or implying relative importance; the term “plurality” means two or two. Above, unless otherwise explicitly defined.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like should be understood broadly. For example, “connecting” may be a fixed connection, a detachable connection, or an integral connection; “connected” may They are directly connected or indirectly connected through an intermediary. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Defrosting Systems (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

一种翅片式蒸发器（20），包括：蒸发管，包括多个并排设置的蒸发器直管，相邻的蒸发器直管之间通过U型管连接，底层的一个蒸发器直管折弯后延伸至顶部形成蒸发管的入口（206）；多个第一翅片（208），套设在下层的蒸发器直管上，任意一个第一翅片（208）设有预结霜结构（2082），预结霜结构（2082）相对套设的蒸发器直管设置于下方，能够将霜层结在指定的区域，减小了风阻，提高了系统运行的稳定性。

Description

翅片式蒸发器和制冷设备
本申请要求于2017年2月13日提交中国专利局、申请号为201710076739.4、发明名称为“翅片式蒸发器和制冷设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及家用电器领域，具体而言，涉及一种翅片式蒸发器和一种制冷设备。
背景技术
在相关技术中，如图1和图2所示，蒸发器采用常规翅片制作，制冷时，制冷剂从蒸发管上部至下流出，空气从蒸发器下部至上流出，相关技术中的蒸发器至少存在以下技术缺陷：
(1)制冷剂从蒸发管的顶部进入，沿着蒸发器直管自上而下流向底部，蒸发管初始区域102处于顶部，受重力作用，流阻小，换热效率低，且蒸发器靠近入口端的制冷剂流速很快，导致换热效率低；
(2)空气从蒸发器下部至上流出，空气中的水汽会在翅片表面以及蒸发管表面形成霜层，蒸发器主要结霜区域104区域较大，并导致蒸发管风阻大，工作效率降低。
发明内容
为了解决上述技术问题至少之一，本发明的一个目的在于提供一种翅片式蒸发器。
本发明的另一个目的在于提供一种制冷设备。
为实现上述目的，本发明第一方面的实施例提供了一种翅片式蒸发器，包括：蒸发管，包括多个并排设置的蒸发器直管，相邻的蒸发器直管之间通过U型管连接，底层的一个蒸发器直管折弯后延伸至顶部形成蒸发管的 入口；多个第一翅片，套设在下层的蒸发器直管上，任意一个第一翅片设有预结霜结构，预结霜结构相对套设的蒸发器直管设置于下方。
在该技术方案中，通过将蒸发管的入口直接垂直延伸至底层的蒸发器直管，与现有技术中蒸发管的设置方式相比，一方面，改变了制冷剂的流向，使蒸发器管内的制冷剂由下至上流动，提高了蒸发器的换热效率，另一方面，能够将蒸发管的初始部分从有效的换热面积中分离处理，提升了换热面积的利用率，另外，通过配合套设在底层的蒸发器直管上的多个第一翅片，能够将霜层结在指定的区域，减小了风阻，进而提高了系统运行的稳定性。
其中，优选地，翅片式蒸发器用于冰箱等制冷设备，通过提高蒸发器的换热效率，达到了冰箱等制冷设备的节能效果。
具体地，第一翅片上设有预结霜结构，制冷时，制冷剂从蒸发器下部至上流出，受重力作用，流阻大，换热效率高，空气从蒸发器下部至上流出，配合第一翅片使湿空气中的水汽在蒸发器的下方，没有蒸发管的区域，即预结霜结构进行预结霜，减少了蒸发器有效换热部分的结霜，进而减小风阻，提升蒸发器系统换热效率。
另外，本发明提供的上述实施例中的翅片式蒸发器还可以具有如下附加技术特征：
在上述技术方案中，优选地，多个第一翅片套设于最底层的蒸发器直管上。
在该技术方案中，通过将多个第一翅片套设于最底层的蒸发器直管上，在制冷剂进入蒸发管的入口直接到达最底层时，通过设置预结霜结构以增加结霜面积，使空气中的水汽在最低层的第一翅片上直接进行预结霜，在等量水汽的前提下，通过预结霜结构，提升了在第一翅片上结霜的效率，从而减少了蒸发器有效换热区域的结霜，进一步减少风阻，提升工作效率。
在上述任一项技术方案中，优选地，顶层的一个蒸发器直管连接至向上折弯的折弯管，折弯管具有蒸发管的出口。
在该技术方案中，通过将蒸发器的入口直接延伸至底层的蒸发器直管，使蒸发器入口部分放在下部用来预结霜，同时，通过在靠近入口的一端设 置向上凸起的折弯管，实现了从制冷剂从蒸发管的下部向上流出，由于重力作用，流阻增加，从而提升换热效率。
在上述任一项技术方案中，优选地，第一翅片包括长方形翅片，预结霜结构为梯形片状结构，梯形片状结构设置于长方形翅片的下端。
在该技术方案中，通过将预结霜结构设置为梯形结构，增强了预结霜效果，使湿空气中的水汽在梯形结构的预结霜结构附近很好的凝聚，减小了上层蒸发器直管的结霜情况，进而减小风阻，提升了蒸发器系统换热效率。
在上述任一项技术方案中，优选地，第一翅片包括长方形翅片，预结霜结构为至少一个分隔设置的倒三角形片状结构，倒三角形片状结构设置于长方形翅片的下端。
在该技术方案中，通过将预结霜结构设置为倒三角形结构，增强了预结霜效果，同时，将倒三角形结构的一个尖角朝下方设置，使湿空气中的水汽在倒三角形结构的预结霜结构附近很好的凝聚，另外，还可以设置多个倒三角结构，进一步减小了上层蒸发器直管的结霜情况，进而减小风阻，提升了蒸发器系统换热效率。
在上述任一项技术方案中，优选地，还包括：多个第二翅片，套设于未设置第一翅片的的蒸发器直管上。
在该技术方案中，上层蒸发器直管起到很好的换热作用，通过在底层以外的蒸发器直管上设置多个第二翅片，进一步提高了蒸发器的换热效率，增强了产品的性能。
在上述任一项技术方案中，优选地，任意一个第一翅片以及任意一个第二翅片垂直蒸发器直管设置，相邻两个第一翅片之间的间距大于相邻两个第二翅片之间的间距。
在该技术方案中，通过使任意一个第一翅片以及任意一个第二翅片垂直于蒸发器直管，当水汽由下至上流动时，形成垂直的气流轨道，减小水汽凝结在翅片上的概率，降低了结霜情况，进而提高了蒸发器的换热效率，同时，相邻两个第一翅片之间的间距大于相邻两个第二翅片之间的间距，使套设在底层的蒸发器直管上的多个第一翅片更容易结霜，霜层集中在第 一翅片的预结霜结构，进而提高了上层蒸发器直管的换热效率。
在上述任一项技术方案中，优选地，第一翅片与所述第二翅片为铝合金件、铜件以及不锈钢件中的至少一种。
在上述任一项技术方案中，优选地，蒸发管的底部设置有入风口，蒸发管的顶部设置有出风口。
在该技术方案中，通过在蒸发管的底部设置入风口，在蒸发管的顶部设置出风口，实现了空气从下向上流动，配合多个第一翅片设置，减小了上层蒸发器直管的结霜情况，进而减小风阻，提升蒸发器系统换热效率。
另外，还可以设置风道格栅，以引导气流流动，使空气从蒸发器下部至上流出，配合第一翅片使湿空气中的水汽在蒸发器的下方，没有蒸发管的区域，即预结霜结构进行预结霜，减小了上层蒸发器直管的结霜情况，进而减小风阻，提升蒸发器系统换热效率。
在上述技术方案中，优选地，蒸发管包括至少一排且至少三层，位于底层的蒸发器直管与相邻上一层的蒸发器直管之间的间距大于位于其它相邻层的蒸发器直管之间的间距。
在该技术方案中，通过加大底层蒸发器直管与其上一层蒸发器直管之间的间距，进一步提高流阻，提升换热效率，同时，使霜结在指定的预结霜结构，减少了蒸发器有效换热部分的结霜情况，进而减小了风阻，进一步提高了蒸发器的换热效率。
其中，优选地，蒸发器包括三排以及六层的蒸发器直管，最底层蒸发器直管采用任意一个第一翅片，以上五层蒸发器直管采用常规翅片，蒸发器管路的入口直接延伸到最底层的蒸发器直管，最底层的蒸发器直管与其上一层的蒸发器直管之间的间距大于以上五层蒸发器直管之间的上下距离，通过上述方案，达到了更好的预结霜功能，使霜结在任意一个第一翅片的预结霜结构，进而提高了蒸发器的换热效率，增强了产品的性能。
本发明第二方面的实施例提供了一种制冷设备，包括本发明第一方面中任一项技术方案提供的翅片式蒸发器。
在该技术方案中，任意一个第一翅片设有预结霜结构，制冷时，制冷剂从蒸发器下部至上流出，受重力作用，流阻大，换热效率高，空气从蒸 发器下部至上流出，配合第一翅片使湿空气中的水汽在蒸发器的下方，没有蒸发管的区域，即预结霜结构进行预结霜，减小了上层蒸发器直管的结霜情况，进而减小风阻，提升了蒸发器系统换热效率，进一步的增强了制冷设备的实用性，提高了制冷设备的质量，给用户带来很好的使用体验。
本发明的附加方面和优点将在下面的描述部分中变得明显，或通过本发明的实践了解到。
附图说明
图1示出了相关技术的一个实施例的翅片式蒸发器管路的示意主视图；
图2示出了图1中的翅片式蒸发器的示意左视图；
图3示出了根据本发明的一个实施例的翅片式蒸发器管路的示意主视图；
图4示出了图3中的翅片式蒸发器的示意左视图；
图5示出了根据本发明的一个实施例的第一翅片的结构示意图；
图6示出了根据本发明的一个实施例的第二翅片的结构示意图。
其中，图1至图6中附图标记与部件名称之间的对应关系为：
102蒸发管初始区域，104蒸发器主要结霜区域，20翅片式蒸发器，202蒸发管初始区域，204蒸发器主要结霜区域，206蒸发管的入口，208第一翅片，2082预结霜结构，210蒸发管的出口，212第二翅片。
具体实施方式
为了能够更清楚地理解本发明的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明，但是，本发明还可以采用其他不同于在此描述的其他方式来实施，因此，本发明的保护范围并不限于下面公开的具体实施例的限制。
下面结合图3至图6对根据本发明的实施例的翅片式蒸发器进行具体 说明。
如图3和图4所示，本发明第一方面的实施例提供了一种翅片式蒸发器20，包括：蒸发管，包括多个并排设置的蒸发器直管，相邻的蒸发器直管之间通过U型管连接，底层的一个蒸发器直管折弯后延伸至顶部形成蒸发管的入口206；多个第一翅片208，套设在下层的蒸发器直管上，任意一个第一翅片208设有预结霜结构2082，预结霜结构2082相对套设的蒸发器直管设置于下方。
如图3所示，在该实施例中，通过将蒸发管的入口206直接垂直延伸至底层的蒸发器直管，与现有技术中蒸发管的设置方式相比，一方面，改变了制冷剂的流向，蒸发管初始区域202处于蒸发器的底部，使蒸发器管内的制冷剂由下至上流动，提高了蒸发器的换热效率，另一方面，能够将蒸发管初始区域202从有效的换热面积中分离处理，提升了换热面积的利用率，另外，通过配合套设在底层的蒸发器直管上的多个第一翅片208，能够将霜层结在指定的区域，蒸发器主要结霜区域204主要集中在预结霜结构2082上，减小了风阻，进而提高了系统运行的稳定性。
其中，优选地，翅片式蒸发器20用于冰箱等制冷设备，通过提高蒸发器的换热效率，达到了冰箱等制冷设备的节能效果。
具体地，第一翅片208上设有预结霜结构2082，制冷时，制冷剂从蒸发器下部至上流出，受重力作用，流阻大，换热效率高，空气从蒸发器下部至上流出，配合第一翅片208使湿空气中的水汽在蒸发器的下方，没有蒸发管的区域，即预结霜结构2082进行预结霜，减少了蒸发器有效换热部分的结霜，进而减小风阻，提升蒸发器系统换热效率。
另外，本发明提供的上述实施例中的翅片式蒸发器20还可以具有如下附加技术特征：
如图3和图4所示，在上述技术方案中，优选地，多个第一翅片208套设于最底层的蒸发器直管上。
在该实施例中，通过将多个第一翅片208套设于最底层的蒸发器直管上，在制冷剂进入蒸发管的入口206直接到达最底层时，通过设置预结霜结构2082以增加结霜面积，使空气中的水汽在最低层的第一翅片208上直 接进行预结霜，在等量水汽的前提下，通过预结霜结构2082，提升了在第一翅片208上结霜的效率，从而减少了蒸发器有效换热区域的结霜，进一步减少风阻，提升工作效率。
如图3所示，在上述任一项技术方案中，优选地，顶层的一个蒸发器直管连接至向上折弯的折弯管，折弯管具有蒸发管的出口210。
在该实施例中，通过将蒸发器的入口直接延伸至底层的蒸发器直管，使蒸发器入口部分放在下部用来预结霜，同时，通过在靠近入口的一端设置向上凸起的折弯管，实现了从制冷剂从蒸发管的下部向上流出，由于重力作用，流阻增加，从而提升换热效率。
预结霜结构包括但不限于以下设置方式：
实施例一：
如图3和图5所示，在上述任一项技术方案中，优选地，第一翅片208包括长方形翅片，预结霜结构2082为梯形片状结构，梯形片状结构设置于长方形翅片的下端。
在该实施例中，通过将预结霜结构2082设置为梯形结构，增强了预结霜效果，使湿空气中的水汽在梯形结构的预结霜结构2082附近很好的凝聚，减小了上层蒸发器直管的结霜情况，进而减小风阻，提升了蒸发器系统换热效率。
实施例二：
在上述任一项技术方案中，优选地，第一翅片208包括长方形翅片，预结霜结构2082为至少一个分隔设置的倒三角形片状结构，倒三角形片状结构设置于长方形翅片的下端。
在该实施例中，通过将预结霜结构2082设置为倒三角形结构，增强了预结霜效果，同时，将倒三角形结构的一个尖角朝下方设置，使湿空气中的水汽在倒三角形结构的预结霜结构2082附近很好的凝聚，另外，还可以设置多个倒三角结构，进一步减小了上层蒸发器直管的结霜情况，进而减小风阻，提升了蒸发器系统换热效率。
如图3和图6所示在上述任一项技术方案中，优选地，还包括：多个第二翅片212，套设于未设置第一翅片208的的蒸发器直管上。
在该实施例中，上层蒸发器直管起到很好的换热作用，通过在底层以外的蒸发器直管上设置多个第二翅片212，进一步提高了蒸发器的换热效率，增强了产品的性能。
在上述任一项技术方案中，优选地，任意一个第一翅片208以及任意一个第二翅片212垂直蒸发器直管设置，相邻两个第一翅片208之间的间距大于相邻两个第二翅片212之间的间距。
在该实施例中，通过使任意一个第一翅片208以及任意一个第二翅片212垂直于蒸发器直管，当水汽由下至上流动时，形成垂直的气流轨道，减小水汽凝结在翅片上的概率，降低了结霜情况，进而提高了蒸发器的换热效率，同时，相邻两个第一翅片208之间的间距大于相邻两个第二翅片212之间的间距，使套设在底层的蒸发器直管上的多个第一翅片208更容易结霜，霜层集中在第一翅片208的预结霜结构2082，进而提高了上层蒸发器直管的换热效率。
在上述任一项技术方案中，优选地，第一翅片208与所述第二翅片212为铝合金件、铜件以及不锈钢件中的至少一种。
在上述任一项技术方案中，优选地，蒸发管的底部设置有入风口，蒸发管的顶部设置有出风口。
在该实施例中，通过在蒸发管的底部设置入风口，在蒸发管的顶部设置出风口，实现了空气从下向上流动，配合多个第一翅片208设置，减小了上层蒸发器直管的结霜情况，进而减小风阻，提升蒸发器系统换热效率。
另外，还可以设置风道格栅，以引导气流流动，使空气从蒸发器下部至上流出，配合第一翅片208使湿空气中的水汽在蒸发器的下方，没有蒸发管的区域，即预结霜结构2082进行预结霜，减小了上层蒸发器直管的结霜情况，进而减小风阻，提升蒸发器系统换热效率。
在上述技术方案中，优选地，蒸发管包括至少一排且至少三层，位于底层的蒸发器直管与相邻上一层的蒸发器直管之间的间距大于位于其它相邻层的蒸发器直管之间的间距。
在该实施例中，通过加大底层蒸发器直管与其上一层蒸发器直管之间的间距，进一步提高流阻，提升换热效率，同时，使霜结在指定的预结霜 结构2082，减少了蒸发器有效换热部分的结霜情况，进而减小了风阻，进一步提高了蒸发器的换热效率。
其中，优选地，蒸发器包括三排以及六层的蒸发器直管，最底层蒸发器直管采用任意一个第一翅片208，以上五层蒸发器直管采用常规翅片，蒸发器管路的入口直接延伸到最底层的蒸发器直管，最底层的蒸发器直管与其上一层的蒸发器直管之间的间距大于以上五层蒸发器直管之间的上下距离，通过上述方案，达到了更好的预结霜功能，使霜结在任意一个第一翅片208的预结霜结构2082，进而提高了蒸发器的换热效率，增强了产品的性能。
本发明第二方面的实施例提供了一种制冷设备，包括本发明第一方面中任一项技术方案提供的翅片式蒸发器。
在该实施例中，任意一个第一翅片设有预结霜结构，制冷时，制冷剂从蒸发器下部至上流出，受重力作用，流阻大，换热效率高，空气从蒸发器下部至上流出，配合第一翅片使湿空气中的水汽在蒸发器的下方，没有蒸发管的区域，即预结霜结构进行预结霜，减小了上层蒸发器直管的结霜情况，进而减小风阻，提升了蒸发器系统换热效率，进一步的增强了制冷设备的实用性，提高了制冷设备的质量，给用户带来很好的使用体验。
在本发明中，术语“第一”、“第二”、“第三”仅用于描述的目的，而不能理解为指示或暗示相对重要性；术语“多个”则指两个或两个以上，除非另有明确的限定。术语“安装”、“相连”、“连接”、“固定”等术语均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；“相连”可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
本发明的描述中，需要理解的是，术语“上”、“下”、“左”、“右”、“前”、“后”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或单元必须具有特定的方向、以特定的方位构造和操作，因此，不能理解为对本发明的限制。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于 本发明的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (11)

  1. 一种翅片式蒸发器，其特征在于，包括：
    蒸发管，包括多个并排设置的蒸发器直管，相邻的所述蒸发器直管之间通过U型管连接，底层的一个所述蒸发器直管折弯后延伸至顶部形成所述蒸发管的入口；
    多个第一翅片，套设在下层的所述蒸发器直管上，任意一个所述第一翅片设有预结霜结构，所述预结霜结构相对套设的所述蒸发器直管设置于下方。
  2. 根据权利要求1所述的翅片式蒸发器，其特征在于，
    所述多个第一翅片套设于最底层的所述蒸发器直管上。
  3. 根据权利要求1所述的翅片式蒸发器，其特征在于，
    顶层的一个所述蒸发器直管连接至向上折弯的折弯管，所述折弯管具有所述蒸发管的出口。
  4. 根据权利要求1所述的翅片式蒸发器，其特征在于，
    所述第一翅片包括长方形翅片，所述预结霜结构为梯形片状结构，所述梯形片状结构设置于所述长方形翅片的下端。
  5. 根据权利要求1所述的翅片式蒸发器，其特征在于，
    所述第一翅片包括长方形翅片，所述预结霜结构为至少一个分隔设置的倒三角形片状结构，所述倒三角形片状结构设置于所述长方形翅片的下端。
  6. 根据权利要求1至5中任一项所述的翅片式蒸发器，其特征在于，还包括：
    多个第二翅片，套设于未设置所述第一翅片的所述蒸发器直管上。
  7. 根据权利要求6所述的翅片式蒸发器，其特征在于，
    任意一个所述第一翅片以及任意一个所述第二翅片垂直所述蒸发器直管设置，相邻两个所述第一翅片之间的间距大于相邻两个所述第二翅片之间的间距。
  8. 根据权利要求6所述的翅片式蒸发器，其特征在于，
    所述第一翅片与所述第二翅片为铝合金件、铜件以及不锈钢件中的至少一种。
  9. 根据权利要求1至8中任一项所述的翅片式蒸发器，其特征在于，
    所述蒸发管的底部设置有入风口，所述蒸发管的顶部设置有出风口。
  10. 根据权利要求1至9中任一项所述的翅片式蒸发器，其特征在于，
    所述蒸发管包括至少一排且至少三层，位于底层的所述蒸发器直管与相邻上一层的所述蒸发器直管之间的间距大于位于其它相邻层的所述蒸发器直管之间的间距。
  11. 一种制冷设备，其特征在于，包括：
    权利要求1至10中任一项所述的翅片式蒸发器。
PCT/CN2017/113170 2017-02-13 2017-11-27 翅片式蒸发器和制冷设备 Ceased WO2018145504A1 (zh)

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CN109028662A (zh) * 2018-06-29 2018-12-18 安徽新店软件开发有限公司 一种翅片式蒸发器及制冷设备
CN110057138B (zh) * 2019-04-15 2021-06-15 合肥华凌股份有限公司 换热组件和具有其的制冷设备
CN111330654A (zh) * 2020-04-10 2020-06-26 重庆苏试四达试验设备有限公司 环境试验箱用制冷除湿一体式蒸发器
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CN115808031A (zh) * 2022-12-06 2023-03-17 西安交通大学 一种铲齿式蒸发器
CN118274496A (zh) * 2022-12-29 2024-07-02 广东美的白色家电技术创新中心有限公司 换热器、制冷系统和家用电器

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