CN213480415U

CN213480415U - Outdoor air conditioner

Info

Publication number: CN213480415U
Application number: CN202022243564.1U
Authority: CN
Inventors: 孟建军; 刘晓蕾; 赵东方; 曹法立
Original assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Current assignee: Qingdao Hisense Hitachi Air Conditioning System Co Ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-06-18
Anticipated expiration: 2030-10-10

Abstract

The utility model relates to an air conditioning technology field discloses an outdoor air conditioner, include: the heat exchanger is arranged in the shell and comprises a copper pipe and fins; the fin has two corrugations; the corrugation has a wave crest, a flat part is arranged on the wave crest and/or between the two corrugations, the wave crest and the wave trough are set to be flat parts through improving the fins, so that the corrugation fold number of the fins is increased, the bending strength of the fins is increased, and the problem that the heating performance of the air conditioner is reduced due to the fact that heat transfer resistance between a refrigerant and air is increased due to condensation or frost is solved.

Description

Outdoor air conditioner

Technical Field

The utility model relates to an air conditioner technical field especially relates to an outdoor air conditioner.

Background

The heat pump type air conditioner comprises a heat pump type air conditioner body, a heat exchanger and a control unit, wherein the heat exchanger is used for controlling the heat exchanger to be in a heat exchange state, and the control unit is used for controlling the heat exchanger to be in a heat exchange state.

When heating, the heat exchanger at the outdoor side is used as an evaporator of an air conditioning system, the temperature of a refrigerant is lower than that of outdoor air, the phenomenon of condensation or frosting of water vapor of the air can occur on the outer surface of the heat exchanger, and the condensation or frosting causes the increase of heat transfer resistance between the refrigerant and the air, so that the heating performance of the air conditioner is reduced.

SUMMERY OF THE UTILITY MODEL

In some embodiments of the present application, there is provided an outdoor air conditioner including: a housing having a heat exchanger disposed therein; the heat exchanger comprises copper pipes and fins; the fin has two corrugations; the corrugations are provided with wave crests, and flat parts are arranged on the wave crests and/or between the two corrugations, so that the problem that the heating performance of the air conditioner is reduced due to the fact that heat transfer resistance between the refrigerant and air is increased caused by condensation or frost formation is solved.

In some embodiments of the present application, the fin is improved by providing the peaks and valleys as flat portions to increase the corrugation fold number of the fin, thereby increasing the bending strength of the fin.

In some embodiments of this application, improve the fin, increased the heat transfer area of fin through the flat portion that sets up on the fin, and then improved the heat transfer coefficient of fin, through changing crest point portion into flat portion to the windage has been reduced.

In some embodiments of the application, improved the fin, through setting up the crest into flat portion, improved the drainage, make the drainage of second flat portion smooth, reduced the comdenstion water source to the regional gathering of tube hole in the middle of two crests to the water yield of edge gathering under the tube hole reduces, and in the same way, after changing the pointed portion of trough into flat portion, the comdenstion water drainage rate along the gathering under the tube hole improves.

In some embodiments of the present application, there is provided an outdoor air conditioner, further comprising: a housing having a heat exchanger disposed therein; the heat exchanger comprises copper pipes and fins; the fin has two corrugations; the corrugations have wave crests, and flat portions are arranged on the wave crests and/or between the two corrugations.

In some embodiments of the present application, two of the corrugations have a first flat therebetween, the width P1 of the first flat ranging from: p1 is not less than 1.0mm and not more than 4.0 mm.

In some embodiments of the present application, the peaks each have a second flat portion disposed thereon to direct liquid flow over the peaks.

In some embodiments of the present application, the width P2 of the second flat portion ranges from: p2 is more than or equal to 0.8mm and less than or equal to 2.5 mm.

In some embodiments of the present application, the two corrugation outer sides have a third flat, the dimension P3 of the third flat ranging from: p3 is more than or equal to 0.5mm and less than or equal to 2.0 mm.

In some embodiments of the present application, the width Fw of the fins ranges from: fw is more than or equal to 14.72mm and less than or equal to 21.65 mm.

In some embodiments of the present application, the fin further has an annular flat portion located between two of the corrugations.

In some embodiments of the present application, a flanged hole inserted with a copper tube is disposed inside the annular flat portion; the corrugated shape is perforated along the length direction of the fin to increase the bending strength of the fin.

In some embodiments of the application, the outer diameter of the tube hole of each copper tube is 6.35-9.52 mm, the distance between the tube holes of adjacent copper tubes is 17-25 mm, and the distance between the fins is 1.1-1.8 mm.

In some embodiments of the present application, the relationship between the pitch Ft of the copper tubes and the dimension Fw of the fins is: 3^0.5 ^ Ft ^ 2 ^ Fw.

Drawings

FIG. 1 is a top view of a fin in an embodiment of the present invention;

FIG. 2 is a side cross-sectional view of a fin in an embodiment of the invention;

fig. 3 is an enlarged view of a portion of fig. 1 according to the present invention;

FIG. 4 is a cross-sectional view of the present invention as shown in FIG. 1A-A;

FIG. 5 is a cross-sectional view of the present invention as shown in FIGS. 1B-B;

FIG. 6 is a top view of a prior art fin;

fig. 7 is a front view of a prior art fin.

In the figure, the position of the upper end of the main shaft,

100. a fin; 110. a second flat portion; 120. a first flat portion; 130. a third flat portion; 140. flanging holes; 150. an annular flat portion;

200. copper tubing.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the present application, an air conditioner performs a refrigeration cycle of the air conditioner, which includes a series of processes involving compression, condensation, expansion, and evaporation, by using a compressor, a condenser, an expansion valve, and an evaporator, and supplies refrigerant to air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in a high temperature and high pressure state and discharges the compressed refrigerant gas, the discharged refrigerant gas flows into a condenser, the condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through a condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant, the evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor, the evaporator can achieve a refrigerating effect by heat exchange with a material to be cooled using latent heat of evaporation of the refrigerant, and the indoor air conditioner can adjust the temperature of an indoor space throughout the cycle.

The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger are used as a condenser or an evaporator, and the indoor air conditioner is used as a heater in a heating mode when the indoor heat exchanger is used as the condenser, and as a cooler in a cooling mode when the indoor heat exchanger is used as the evaporator.

An air conditioner according to some embodiments of the present application includes an indoor unit installed in an indoor space, the indoor unit being connected to an outdoor unit installed in an outdoor space through a pipe, the outdoor unit being provided therein with a compressor, an outdoor heat exchanger, an outdoor centrifugal fan, an expander, and the like of a refrigeration cycle, and the indoor unit being also provided therein with an indoor heat exchanger and an indoor centrifugal fan.

For example, the indoor unit may include a wall-mounted indoor unit installed on a wall of the indoor space.

An outdoor air conditioner according to some embodiments of the present application includes a case in which a plurality of components constituting a refrigeration cycle are installed, the case including a front surface at least partially opened, a rear surface installed on a wall of an indoor space and provided with a mounting plate, a bottom surface defining a bottom configuration, side surfaces provided at both sides of the bottom surface, and a top surface defining a top appearance.

A front panel is provided at a front of the open portion of the front surface, the front panel defining a front appearance of the indoor unit.

The shell is internally provided with a heat exchanger which exchanges heat with air sucked through the fresh air inlet.

The heat exchanger includes a refrigerant pipe through which a refrigerant flows, and a heat exchange fin coupled to the refrigerant pipe so as to increase a heat exchange area, the heat exchanger being disposed to surround a suction side of the centrifugal fan.

For example, the heat exchanger may include a plurality of curved heat exchange portions.

An outdoor air conditioner according to some embodiments of the present application, further comprising: and a fan provided in the housing, the fan including a cross-flow fan that radially discharges air drawn in a circumferential direction.

The fan may have a shape of a plurality of blades arranged in a circumferential direction, and the fan extends in a left-right direction in the housing, where an axial direction of the fan may be the left-right direction.

A fan motor is coupled to one side of the fan, the fan motor is driven to provide a rotational force to the fan, and the other side of the fan may be supported inside the case.

An outdoor air conditioner according to some embodiments of the present application, further comprising: a suction part provided inside the case, through which indoor air is introduced; and a discharge part through which the air introduced through the suction part is heat-exchanged and then discharged to the indoor space.

The suction part may be formed by opening at least a portion of an upper portion of the case, and the discharge part may be formed by opening at least a portion of a lower portion of the case.

Also, the suction part may be provided with a suction grill to prevent introduction of foreign substances, and the discharge part may be provided with a discharge grill.

An outdoor air conditioner according to some embodiments of the present application, further comprising: and a heat exchanger disposed inside the indoor unit and the outdoor unit, the heat exchanger exchanging heat with air sucked by the suction unit.

The heat exchanger includes a refrigerant pipe through which a refrigerant flows, and a heat exchange fin coupled to the refrigerant pipe so as to increase a heat exchange area, the heat exchanger being disposed to surround a suction side of the fan.

An outdoor air conditioner according to some embodiments of the present application, further comprising: the water pan is arranged at the bottom end of the heat exchanger.

And collecting the condensed water generated by the heat exchanger through the water receiving disc.

According to some embodiments of the present application, an outdoor air conditioner, as shown in fig. 1 and 2, the heat exchanger includes: the fins 100 are provided with symmetrical ripples, and the range of the distance L between the fins 100 is that Fw is more than or equal to 1.1mm and less than or equal to 1.8 mm.

The range of dimension Fw for the overall width of fin 100 is: fw is more than or equal to 14.72mm and less than or equal to 21.65 mm.

The height H of the corrugations has the value: h is more than or equal to 0.7mm and less than or equal to 1.2 mm.

Be provided with a pair of crest on the fin 100, the crest is located between two ripples, and the crest is adjacent to the edge setting of fin 100, and a pair of crest sets up relatively, and the crest has second flat portion 110, and the scope of the size P2 of second flat portion 110 is: p2 is more than or equal to 0.8mm and less than or equal to 2.5 mm.

The fin 100 is further provided with a trough, the trough is located between a pair of wave crests, the trough is provided with a first flat part 120, and the range of the size P1 of the first flat part 120 is as follows: p1 is not less than 1.0mm and not more than 4.0 mm.

A third flat portion 130 is provided at the outer edge of the fin 100, the third flat portion 130 being on the same horizontal plane as the first flat portion 120, the third flat portion 130 having a dimension P3 in the range of: p3 is more than or equal to 0.5mm and less than or equal to 2.0 mm.

As shown in fig. 1 and 3-4, the fin 100 is further provided with: an annular flat portion, the annular flat portion 150 is disposed on the first flat portion 120, and the annular flat portion 150 communicates with the first flat portion 120.

By providing the peaks and valleys as the flat portions, the number of folds of the corrugations of the fin 100 is increased, and the bending strength of the fin 100 is improved.

An outdoor air conditioner according to some embodiments of the present application, as shown in fig. 2, further includes: copper tube 200. copper tube 200 is attached to fin 100.

The copper pipe 200 has a U-shaped tubular structure, and the copper pipe 200 is made of a copper material, thereby improving the effect of cold-heat conversion and guiding the flow of the refrigerant through the copper pipe 200.

The range of the tube hole outer diameter D of the copper tube 200 is: d is more than or equal to 6.35mm and less than or equal to 9.52mm, the center distance between the two copper pipes 200 is a pipe hole distance Ft, and the value of Ft is as follows: ft is more than or equal to 17mm and less than or equal to 25mm, wherein the relationship between the hole pitch Ft of the copper pipe 200 and the size Fw of the fin 100 is as follows: 3^0.5 ^ Ft ^ 2 ^ Fw.

As shown in fig. 2 and 4, a flanging hole 140 inserted with a copper pipe 200 is designed inside the fin 100, the flanging hole 140 is opened on the fin 100, the flanging hole 140 is matched with the copper pipe 200, and a clamping groove is formed in the bottom of the flanging hole 140 and matched with the flanging.

Compared with the prior art, the heat exchange area of the fin 100 is increased by the flat parts among the 2 corrugations, so that the heat exchange coefficient of the fin 100 is improved by 2.7%, the wind resistance of the fin 100 is reduced by 2.6% by changing the peak tip part into the flat part, the bending deformation of the fin 100 is reduced by 42% by increasing the folding number of the corrugations by changing the peak tip part into the flat part, and the strength of the fin 100 is obviously improved.

According to the first concept of the present application, the fin is improved such that the peaks and valleys are provided as the flat portions to increase the number of folds of the corrugations of the fin, thereby increasing the bending strength of the fin.

According to the second design of this application, improve the fin, increased the heat transfer area of fin through setting up flat portion on the fin, and then improved the heat transfer coefficient of fin, through sharp portion of crest for flat portion to the windage has been reduced.

According to the third design of this application, improved the fin, through setting up the crest into flat portion, improved the drainage, make the drainage of the flat portion of second smooth, reduced the regional comdenstion water source of gathering of tube hole to in the middle of two crests to the water yield of edge gathering under the tube hole reduces, and in the same way, after changing the pointed portion of trough into flat portion, the comdenstion water drainage rate of edge gathering under the tube hole improves.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. An outdoor air conditioner comprising:

a housing having a heat exchanger disposed therein;

the heat exchanger comprises copper pipes and fins;

characterized in that the fin has two corrugations;

the corrugations have wave crests, and flat portions are arranged on the wave crests and/or between the two corrugations.

2. An outdoor air conditioner according to claim 1 wherein a first flat portion is provided between two of said corrugations, and the width P1 of said first flat portion is in the range of: p1 is not less than 1.0mm and not more than 4.0 mm.

3. An outdoor air conditioner according to claim 1 wherein said peaks are each provided with a second flat portion for directing liquid flow over said peaks, said second flat portion having a width P2 in the range: p2 is more than or equal to 0.8mm and less than or equal to 2.5 mm.

4. An outdoor air conditioner according to claim 1 wherein said two corrugated outer sides have a third flat portion having a dimension P3 in the range of: p3 is more than or equal to 0.5mm and less than or equal to 2.0 mm.

5. An outdoor air conditioner according to claim 4 wherein the flat portions between two corrugations and outside of the corrugations are on the same horizontal plane.

6. An outdoor air conditioner according to claim 1 wherein the width Fw of said fins is in the range of: fw is more than or equal to 14.72mm and less than or equal to 21.65 mm.

7. An outdoor air conditioner according to claim 1 wherein said fin further has an annular flat portion, said annular flat portion being located between two corrugations.

8. An outdoor air conditioner according to claim 7 wherein the annular flat portion is provided therein with a flanged hole through which the copper tube is inserted; the corrugations penetrate along the length direction of the fin to increase the bending strength of the fin.

9. An outdoor air conditioner according to claim 1 wherein the outer diameter of the tube holes of the copper tubes is 6.35 to 9.52mm, the distance between the tube holes of the adjacent copper tubes is 17 to 25mm, and the distance between the fins is 1.1 to 1.8 mm.

10. An outdoor air conditioner according to any one of claims 1-9 wherein the relationship between the pitch Ft of said copper tubes and the dimension Fw of said fins is: 3^0.5 ^ Ft ^ 2 ^ Fw.