WO2020098358A1 - Bac d'égouttage d'eau et unité extérieure de climatiseur le comportant - Google Patents

Bac d'égouttage d'eau et unité extérieure de climatiseur le comportant Download PDF

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Publication number
WO2020098358A1
WO2020098358A1 PCT/CN2019/105333 CN2019105333W WO2020098358A1 WO 2020098358 A1 WO2020098358 A1 WO 2020098358A1 CN 2019105333 W CN2019105333 W CN 2019105333W WO 2020098358 A1 WO2020098358 A1 WO 2020098358A1
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WO
WIPO (PCT)
Prior art keywords
heat exchanger
water receiving
receiving tray
fins
drain hole
Prior art date
Application number
PCT/CN2019/105333
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English (en)
Chinese (zh)
Inventor
魏长见
Original Assignee
青岛海尔空调电子有限公司
海尔智家股份有限公司
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Publication of WO2020098358A1 publication Critical patent/WO2020098358A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/36—Drip trays for outdoor units

Definitions

  • the invention relates to the technical field of refrigeration, in particular to a water receiving tray and an air conditioner outdoor unit having the same.
  • the outdoor unit of the air conditioner in the prior art includes a water receiving tray.
  • the bottom surface of the water receiving tray is provided with a drain hole.
  • the drain holes are distributed in the middle of the bottom surface of the water tray. There is no drainage hole under the fin of the air conditioner. Under the condition of low temperature heating and defrosting of the outdoor unit of the air conditioner, the ambient temperature is low, and the water flowing through the heat exchanger to the water receiving tray is easy to be frozen, causing The drain pan is not well drained.
  • Embodiments of the present invention provide a water receiving tray and an air conditioner outdoor unit having the same to solve the problem of poor drainage of the water receiving tray in the prior art.
  • a brief summary is given below. This summary section is not a general comment, nor is it to determine key / important elements or to describe the scope of protection of these embodiments. Its sole purpose is to present some concepts in a simple form as a preface to the detailed description that follows.
  • a water receiving tray the water receiving tray is disposed below the fin of the heat exchanger, and the bottom surface of the water receiving tray corresponding to the fin of the heat exchanger is provided with drainage
  • the arrangement shape of the holes and the drain holes is consistent with the cross-sectional shape of the fins of the heat exchanger.
  • the cross-section of the drain hole is circular or rectangular or oval.
  • the diameter of the drain hole is greater than or equal to 20 mm and less than or equal to 40 mm;
  • the length and width of the drain hole are greater than or equal to 20 mm, and less than or equal to 40 mm;
  • the long axis and short axis of the drain hole are greater than or equal to 20 mm, and less than or equal to 40 mm.
  • the diameter of the drain hole is 30 mm;
  • the length of the drain hole is 30 mm and the width is 25 mm;
  • the long axis of the drain hole is 35 mm and the short axis is 28 mm.
  • the total area of the plurality of drain holes is 30% to 40% of the cross-sectional area of the heat exchanger.
  • the total area of the plurality of drain holes is 35% of the cross-sectional area of the heat exchanger.
  • the intervals between the multiple drain holes are the same or different.
  • the center of the drain hole is located on the center plane in the width direction of the heat exchanger.
  • an outdoor unit of an air conditioner having the above water receiving tray.
  • the distance between the water flowing through the heat exchanger fins and the water receiving tray and the drain holes can be further increased.
  • the water can be discharged from the drainage holes as soon as possible, and by aligning the arrangement shape of the drainage holes with the cross-sectional shape of the fins of the heat exchanger, the drainage holes under the fins of the heat exchangers of different shapes can be made,
  • the water flowing through the fins of the heat exchanger to the water receiving tray can be discharged from the nearby drain holes, to avoid poor drainage of the water receiving tray due to frozen water when the ambient temperature is low.
  • Fig. 1 is a schematic diagram showing a wind direction between a water receiving tray and a heat exchanger according to an exemplary embodiment
  • Fig. 2 is a partial enlarged view showing a water receiving tray and a heat exchanger according to an exemplary embodiment
  • Fig. 3 is a distribution diagram of a supporting boss according to an exemplary embodiment
  • Fig. 4 is a structural diagram of a cross section of a fin according to an exemplary embodiment
  • Fig. 5 is a structural diagram showing a cross section of a fin according to another exemplary embodiment
  • Fig. 6 is a structural diagram of a cross section of a fin according to yet another exemplary embodiment
  • Fig. 7 is a distribution diagram of a drainage hole according to an exemplary embodiment
  • Fig. 8 is a schematic diagram of an explosion structure of a water receiving tray according to an exemplary embodiment
  • Fig. 9 is a partially enlarged view of an explosive structure of a water receiving tray according to an exemplary embodiment
  • Fig. 10 is a schematic diagram of an assembly structure of a water receiving tray according to an exemplary embodiment
  • Heat exchanger 11, fins; 2, water receiving tray; 21, support boss; 22, drain hole; 23, first face; 24, second face; 25, third face; 3. electric heating Pipe; 4, fixed clip; 41, limit part; 42, fixed hole; 5, fan.
  • connection should be understood in a broad sense, for example, it may be mechanical or electrical, or two.
  • the internal communication of each element may be directly connected or indirectly connected through an intermediate medium.
  • FIG. 1 is a schematic diagram illustrating a wind direction between a water receiving tray and a heat exchanger according to an exemplary embodiment
  • FIG. 2 is based on An exemplary embodiment shows a partial enlarged view between a water receiving tray and a heat exchanger. It can be seen in conjunction with FIGS. 1 and 2 that the water receiving tray includes side edges and a bottom surface, and the angle ⁇ between the side edges and the bottom surface Greater than 90 °, and the transition between the side and the bottom through an arc.
  • the angle ⁇ between the side and the bottom of the water receiving tray 2 is greater than 90 °, where the wind passes through the angle ⁇ , the wind resistance is reduced due to the arc transition between the side and the bottom, and Increased wind speed, increased wind speed and reduced wind resistance will increase the speed of guiding water to the drain hole, increase the drain speed of the water receiving tray 2, and thus improve the drainage efficiency of the outdoor unit of the air conditioner.
  • the increase in wind speed is because the area of the tuyere on the left side of the fin 11 is larger than the area of the tuyere on the right side of the fin 11. In the case of an equal amount of wind, the wind speed increases after passing through the fin 11.
  • the height a of the side is 0.5 times the width W of the fin 11 of the heat exchanger 1, and the deviation of the height a of the side is ⁇ 0.5 mm.
  • the size of the side of the corresponding water receiving tray 2 is determined according to the width of the fin 11 of the heat exchanger 1, The water receiving tray 2 can be better matched with the fins 11 of the heat exchanger 1.
  • the height a of the side increases as the angle ⁇ increases.
  • the height a of the side increases by 2 mm.
  • the included angle is 95 ° ⁇ ⁇ ⁇ 120 °
  • the incremental tolerance is 5 °
  • the height a of the side is increased by 2 mm.
  • the value of the included angle ⁇ may be 100 °, 105 °, 110 °, 115 °.
  • the height a of the side is 8 mm or more and 18 mm or less.
  • the heights a of the sides are distributed in an equidistant sequence, with a tolerance of 2 mm.
  • the value of the height a of the side may be 10, 12, 14, 16 mm.
  • the width W of the fin 11 is determined according to the standard specifications in the air-conditioning outdoor unit industry, and is determined according to the parameters of the air-conditioning outdoor unit.
  • the number of sides is 4, which are distributed around the periphery of the water receiving tray 2.
  • the matching gap between the sides and the fins 11 is less than or equal to 2 mm, and is greater than or equal to 0.5 mm. If it is small, the water formed between the fins 11 and the side edges cannot be discharged into the drain hole of the water receiving tray 2 in time, which will eventually lead to poor drainage, and it is easier to freeze during low temperature heating, which affects the air conditioner outdoor unit. Thermal performance.
  • the bottom hairpin tube of the fin 11 of 1 affects the heat exchange efficiency of the heat exchanger 1 and has a negative effect on the cooling and heating effects of the outdoor unit of the air conditioner.
  • Fig. 3 is a distribution diagram of a support boss according to an exemplary embodiment. As shown in Fig. 3, a support boss 21 is provided on the periphery of the water receiving tray 2, and the number of support bosses 21 is different from that of the heat exchanger 1. The length of the fin 11 is positively correlated.
  • the corresponding number of support bosses 21 can be matched according to the length of the fins 11 of the heat exchanger 1 to avoid The contact between the fins 11 and the support boss 21 is less and the heat exchanger 1 is damaged.
  • the support boss 21 provided on the periphery of the water receiving tray 2 is used to support the heat exchanger 1 to support and fix the heat exchanger 1.
  • the connection way of the heat exchanger 1 and the support boss 21 is not limited.
  • a part of the pipeline of the fin 11 passes through the support boss 21.
  • the heat exchanger 1 is bent to form a plurality of straight-line fins 11, and the length L of each straight-line fin 11 is the same as the required support boss of the straight-line fin 11
  • the relationship of quantity n is as follows:
  • the unit of L is millimeter, and the unit of n is one.
  • the number of support bosses when the length is 2000 mm, the number of support bosses is 6-7; for every increase of 600 mm or less in length, the number of support bosses is increased by 1.
  • the number of the support bosses 21 is 1-2;
  • the number of the support bosses 21 is equal to or greater than 6.
  • the number of support bosses when the length is in the interval [2000, + ⁇ ], when the length is 2000, the number of support bosses is 6-7; for each increase of the length of 600 mm or less, the number of support bosses increases 1.
  • the unit of the above length is millimeter.
  • the number of support bosses 21 is selected according to the length of the fins 11 of each straight section of the heat exchanger 1, so that the number of support bosses 21 can be adapted to the number of fins 11 of each straight section of the heat exchanger 1 length.
  • the plurality of support bosses 21 are evenly distributed along the direction of the fins 11 of each straight segment.
  • the fins 11 of each straight section of the heat exchanger 1 can be uniformly supported.
  • the distribution shape of the support boss 21 is the same as the cross-sectional shape of the fin 11 of the heat exchanger 1.
  • FIG. 4 is a cross-sectional structure diagram of a fin according to an exemplary embodiment. As shown in FIG. 4, the heat exchanger 1 is bent into an L-shaped fin 11 having two straight segments, two The lengths of the fins 11 of each straight line segment are represented by L1 and L2, respectively, and the distribution shape of the corresponding support boss 21 is also L-shaped.
  • Fig. 5 is a structural view of a cross section of a fin according to another exemplary embodiment. As shown in Fig. 5, the heat exchanger 1 is bent into an arched fin 11 having three straight segments, The lengths of the fins 11 of the three straight segments are denoted by L1, L2, and L3, respectively, and the distribution shape of the corresponding support boss 21 is also arched.
  • Fig. 6 is a structural diagram of a cross-section of a fin according to yet another exemplary embodiment. As shown in Fig. 6, the heat exchanger 1 is bent into an unclosed mouth-shaped fin with four straight segments The lengths of the fins 11 and the fins 11 of the four straight line segments are denoted by L1, L2, L3, and L4, respectively, and the distribution shape of the corresponding support boss 21 is also an unclosed chevron shape.
  • the value range of L1, L2, L3, L4 and the number of selected support bosses 21 are determined according to the aforementioned scheme, that is, when L1, L2, L3 or L4 is located in the interval (0-200), the support convex The number of stations 21 is 1-2;
  • the number of support bosses is 6-7; for each increase of length of 600 mm or less, the number of support bosses increases by 1.
  • the length Y of the support boss 21 is 80-100 mm
  • the width M is 8-15 mm greater than the width W of the fin 11 of the heat exchanger 1
  • the height is the side of the water receiving tray 2 Half of the height a.
  • the length Y of the support boss 21 is 90 mm
  • the width M is 10 mm greater than the width W of the fin 11 of the heat exchanger 1
  • the height is the height a of the side of the water receiving tray 2 Half.
  • the length of the support boss 21 is 1.57-4.17 times its width.
  • the size of the support boss 21, the support boss 21 and the fin 11 of the heat exchanger 1 can be better matched.
  • the material of the support boss 21 is plastic or sheet metal material.
  • the plastic material is not easily deformed, and the support boss 21 made of plastic material also has the characteristics of corrosion resistance and long service life.
  • the support boss 21 made of sheet metal material has the characteristics of not easy to deform, high reliability, strong corrosion resistance and stability, and long service life.
  • FIG. 7 is a distribution diagram of a drain hole according to an exemplary embodiment. As shown in FIG. 7, the bottom surface of the water receiving tray 2 is opposite to the fins 11 of the heat exchanger 1 Drain holes 22 are partially provided, and the number of drain holes 22 is plural.
  • the diameter of the drain hole 22 is greater than or equal to 20 mm and less than or equal to 40 mm.
  • the total area of the plurality of drain holes 22 is 30% to 40% of the area of the bottom surface of the fin 11 of the heat exchanger 1.
  • the number of drain holes can be determined according to the total area of the drain holes 22 being 30% to 40% of the area of the bottom surface of the fin 11 of the heat exchanger 1.
  • the water receiving tray 2 will not be able to drain the water in time. If the icing is too thick, it will ultimately affect the heating efficiency of the product; if the total area of the multiple drain holes 22 is greater than 40% of the bottom surface area of the fins 11 of the heat exchanger 1, it will affect the heat exchange efficiency of the heat exchanger 1 and cause air conditioning The energy efficiency ratio of the outdoor unit is reduced.
  • 30% and 40% are the data obtained after working conditions such as drainage test, defrosting test, and low temperature heating.
  • the water receiving tray 2 is made of an aluminum-zinc plated steel plate, wherein the surface of the aluminum-zinc plated steel plate has an oxide layer.
  • the arrangement shape of the drain holes 22 is consistent with the cross-sectional shape of the fins 11 of the heat exchanger 1.
  • the specific shape of the cross section of the drain hole 22 is not limited, and the cross section of the drain hole 22 is circular or rectangular or elliptical.
  • the diameter of the drain hole is greater than or equal to 20 mm and less than or equal to 40 mm;
  • the length and width of the drain hole are greater than or equal to 20 mm, and less than or equal to 40 mm;
  • the long axis and short axis of the drain hole are both greater than or equal to 20 mm and less than or equal to 40 mm.
  • the diameter of the drain hole 22 is 30 mm;
  • the length of the drain hole 22 is 30 mm and the width is 25 mm;
  • the long axis of the drain hole is 35 mm and the short axis is 28 mm.
  • the total area of the plurality of drain holes 22 is 35% of the cross-sectional area of the heat exchanger 1.
  • the intervals between the plurality of drain holes 22 are the same or different.
  • the center of the drain hole 22 is located on the center plane in the width direction of the fin 11 of the heat exchanger 1.
  • the bottom surface of the water receiving tray 2 includes a first surface 23 and a second surface 24, and the height of the second surface 24 Below the height of the first face 23.
  • the first surface 23 is a reference surface
  • the second surface 24 is used for drainage.
  • the drain hole 22 is provided on the second face 24, and the water flows out of the drain hole 22 on the second face 24.
  • the height of the second face 24 is 5-15 mm lower than the height of the first face 23.
  • the height of the second face 24 is 10 mm lower than the height of the first face 23.
  • the electric heating tube 3 is further included, and the electric heating tube 3 is fixedly disposed on the bottom of the second surface 24.
  • the water receiving tray 2 further includes a fixing clip 4 for fixing the electric heating tube 3 on the second surface 24 of the water receiving tray 2;
  • screws may be used to fix the fixing clip 4 to the second surface 24 of the water receiving tray 2.
  • the second face 24 is the lowest face in the bottom of the water receiving tray 2 and the distance from the bottom of the fin 11 is 15-20 mm.
  • the value When the value is 15-20 mm, it can meet the efficient drainage of the outdoor unit of the air conditioner. If the distance is too small, it will cause the bottom of the fin 11 to be easily stored due to the small height difference under low-temperature heating The water freezes into ice, causing drainage blockage. In addition, after installing the electric heating tube 3, there is a problem of small installation space, and the electric heating tube 3 is easily contacted with the bottom of the fin 11 of the heat exchanger 1 to wear, causing damage; If the selection is too large, it will cause the mold of the water receiving tray 2 to be difficult to form, and it is necessary to use a deep-drawn drawing material with a higher cost to process the water receiving tray 2, resulting in a waste of material cost and mold cost.
  • FIG. 9 is a partial enlarged view of an explosive structure of a water receiving tray according to an exemplary embodiment. As shown in FIG. Suitably, the limiting portion 41 is buckled outside the electric heating tube 3.
  • the constraining surface of the limiting portion 41 is arched, which is adapted to the shape of the electric heating tube 3.
  • the constraining surface of the limiting portion 41 is semicircular, and its diameter is larger than the outer diameter of the electric heating tube 3.
  • the diameter of the constraining surface is 0.5-2 mm larger than the outer diameter of the electric heating tube 3, such as 1 mm, to achieve the cooperation between the constraining surface and the electric heating tube 3, if the size difference between the two If it is too large, the electric heating tube 3 will be subjected to excessive stress and deformation failure. If the size difference between the two is too small, the electric heating tube 3 will not be firmly fixed, causing shaking and vibration, resulting in electric heating Tube 3 is badly worn.
  • the fixing clip 4 further includes a fixing hole 42 through which the screw fixes the fixing clip 4 on the second surface 24 of the water receiving tray 2.
  • the number of the limiting portion 41 is one or more.
  • the fixing and restraining of the multiple electric heating tubes 3 can be achieved at the same time.
  • the fixing clip is m-shaped, the arched portions on both sides serve as the limiting portion 41, and a fixing hole 42 is opened in the middle depression.
  • the m-shaped fixing clip 4 is used to fix and restrain the two electric heating tubes 3.
  • the water receiving tray 2 is further provided with a third surface 25; the third surface 25 is convexly disposed on part of the first surface 23.
  • the height difference between the third face 25 and the first face 23 is 5-15 mm.
  • the difference in height between the third face 25 and the first face 23 is 10 mm.
  • the support bosses 21 are disposed on the first surface 23 at intervals.
  • the third surface 25 is located in the middle of the bottom surface of the water receiving tray 2.
  • the first surface 23 is distributed in the middle and surrounding positions of the bottom surface of the water receiving tray 2, wherein the portion above the first surface 23 at the middle position of the bottom surface of the water receiving tray 2 is the third surface 25.
  • the drain hole 22 and the electric heating tube 3 are both provided on the second surface 24, and their positions are the lowest, which facilitates the timely discharge of water.
  • the electric heating tube 3 is arranged on the second surface 24, which is convenient for quick defrosting of ice and expulsion as soon as the ice turns into water.
  • Fig. 10 is a schematic diagram of an assembly structure of a water receiving tray according to an exemplary embodiment.
  • a heat exchanger 1 is installed above the water receiving tray 2, and fins 11 of the heat exchanger 1 are fixed On the support boss 21, the wind generated by the fan 5 enters the water receiving tray 2 through the heat exchanger 1, blows the water toward the drain hole 22, and is discharged through the drain hole 22.
  • an outdoor unit for an air conditioner having the water receiving tray 2 mentioned above.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

L'invention concerne un bac d'égouttage d'eau et se rapporte au domaine technique de la réfrigération. Le bac d'égouttage d'eau est agencé au-dessous d'ailettes d'un échangeur de chaleur. Des trous de drainage sont disposés dans une surface inférieure, correspondant aux ailettes de l'échangeur de chaleur, du bac d'égouttage d'eau, et la forme d'agencement des trous de drainage est cohérente avec les formes des sections transversales des ailettes de l'échangeur de chaleur. Selon un mode de réalisation de la présente invention, en fournissant les trous de drainage dans la surface inférieure, correspondant aux ailettes de l'échangeur de chaleur, du bac d'égouttage d'eau, l'eau s'écoulant sur le bac d'égouttage d'eau à travers les ailettes de l'échangeur de chaleur peut se rapprocher des trous de drainage, de telle sorte que l'eau peut être drainée des trous de drainage aussi rapidement que possible; et la forme de l'agencement des trous de drainage est cohérente avec les formes des sections transversales des ailettes de l'échangeur de chaleur, de telle sorte que les trous de drainage peuvent tous être disposés au-dessous des ailettes de différentes formes de l'échangeur de chaleur pour permettre à l'eau s'écoulant sur le bac d'égouttage d'eau à travers les ailettes de l'échangeur de chaleur d'être drainée des trous de drainage à proximité, ce qui permet d'éviter le problème selon lequel le bac d'égouttage d'eau n'évacue pas en douceur l'eau étant donné que l'eau est congelée lorsque la température ambiante est relativement faible.
PCT/CN2019/105333 2018-11-16 2019-09-11 Bac d'égouttage d'eau et unité extérieure de climatiseur le comportant WO2020098358A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201811372137.4A CN109323340A (zh) 2018-11-16 2018-11-16 一种接水盘及具有其的空调室外机
CN201811372137.4 2018-11-16

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WO2020098358A1 true WO2020098358A1 (fr) 2020-05-22

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109323340A (zh) * 2018-11-16 2019-02-12 青岛海尔空调电子有限公司 一种接水盘及具有其的空调室外机
CN109631178A (zh) * 2018-11-16 2019-04-16 青岛海尔空调电子有限公司 一种空调室外机

Citations (7)

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CN203687464U (zh) * 2014-02-18 2014-07-02 四川依米康环境科技股份有限公司 一种翅片管式换热器
CN203823946U (zh) * 2011-11-30 2014-09-10 大金工业株式会社 空调装置的室外机
CN206291363U (zh) * 2016-11-24 2017-06-30 广东美的暖通设备有限公司 底盘结构和空调器室外机
CN107606771A (zh) * 2017-09-30 2018-01-19 广东芬尼能源技术有限公司 一种蒸发器的底盘排水结构
JP2018035946A (ja) * 2016-08-29 2018-03-08 パナソニックＩｐマネジメント株式会社 空気調和機の室外ユニット
CN108775697A (zh) * 2018-07-04 2018-11-09 广东海悟科技有限公司 一种换热器用接水盘
CN109323340A (zh) * 2018-11-16 2019-02-12 青岛海尔空调电子有限公司 一种接水盘及具有其的空调室外机

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203823946U (zh) * 2011-11-30 2014-09-10 大金工业株式会社 空调装置的室外机
CN203687464U (zh) * 2014-02-18 2014-07-02 四川依米康环境科技股份有限公司 一种翅片管式换热器
JP2018035946A (ja) * 2016-08-29 2018-03-08 パナソニックＩｐマネジメント株式会社 空気調和機の室外ユニット
CN206291363U (zh) * 2016-11-24 2017-06-30 广东美的暖通设备有限公司 底盘结构和空调器室外机
CN107606771A (zh) * 2017-09-30 2018-01-19 广东芬尼能源技术有限公司 一种蒸发器的底盘排水结构
CN108775697A (zh) * 2018-07-04 2018-11-09 广东海悟科技有限公司 一种换热器用接水盘
CN109323340A (zh) * 2018-11-16 2019-02-12 青岛海尔空调电子有限公司 一种接水盘及具有其的空调室外机

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