CN217715194U - Air conditioner outdoor unit and air conditioning system - Google Patents

Abstract

The utility model discloses an air condensing units and air conditioning system relates to air conditioning technology field, invents for the reliability that improves air conditioning system operation. The outdoor unit of an air conditioner includes: the cleaning device comprises a shell, at least one outdoor heat exchanger and a cleaning device, wherein the outdoor heat exchanger is positioned in the shell. The cleaning device comprises a water collecting box, a water pump, a water delivery pipe and at least one water spraying device, wherein the water collecting box is positioned in the shell and used for bearing cleaning liquid; the water pipe is positioned in the shell, and one end of the water pipe is connected with a water outlet of the water pump; at least one water spraying device is positioned in the shell, a gap is formed between the water spraying device and the outdoor heat exchanger, and the other end of the water conveying pipe is communicated with the water spraying device; one side of the water spraying device facing the outdoor heat exchanger is provided with a plurality of water spraying nozzles which are strip-shaped. The utility model discloses an air conditioning system is used for air conditioning.

Description

Air conditioner outdoor unit and air conditioning system

Technical Field

The utility model relates to an air conditioning technology field especially relates to an air condensing units and air conditioning system.

Background

With the improvement of the quality of life of people, the air conditioning system is more and more widely used in ordinary families. Generally, an air conditioning system includes an air conditioning indoor unit and an air conditioning outdoor unit. When the outdoor unit of the air conditioner is used, because the ambient air contains dust particles such as dust, smoke dust and the like, the surfaces of fins of an outdoor heat exchanger of the outdoor unit of the air conditioner are easy to scale, and the problems of dirt blockage, corrosion, bacteria, algae and dust are caused. And the operation characteristic parameters such as the air suction and exhaust temperature, the pressure and the like of the compressor can be deteriorated, so that the exhaust pressure of the compressor is too high, the refrigerating and heating capacity of the air conditioning system is reduced, the operation energy consumption is obviously increased, and the problems of reduction of the operation reliability, improvement of the energy consumption and the like of the air conditioning system are brought. In severe cases, faults such as accident shutdown or unit damage may occur, which seriously affects the safe operation of the unit.

In order to solve the problems of dirt blockage of the outdoor heat exchanger and the like, the outdoor heat exchanger is usually cleaned regularly by manpower. However, because the existing air conditioner outdoor unit is installed outside the room, the difficulty of manual cleaning is high, the cleaning is troublesome, and the use experience of users is reduced.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides an air condensing units and air conditioning system for improve the reliability of air conditioning system operation.

In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:

the embodiment of the application provides an air condensing units, includes: the cleaning device comprises a shell, at least one outdoor heat exchanger and a cleaning device, wherein the outdoor heat exchanger is positioned in the shell. The cleaning device comprises a water collecting box, a water pump, a water delivery pipe and at least one water spraying device, wherein the water collecting box is positioned in the shell and used for bearing cleaning liquid; the water pump is arranged in the water collecting box, and a water inlet of the water pump is communicated with the water collecting box; the water delivery pipe is positioned in the shell, and one end of the water delivery pipe is connected with a water outlet of the water pump; at least one water spraying device is positioned in the shell, a gap is reserved between the water spraying device and the outdoor heat exchanger, and the other end of the water conveying pipe is communicated with the water spraying device; one side of the water spraying device, which faces the outdoor heat exchanger, is provided with a plurality of water spraying ports, and the water spraying ports are strip-shaped.

In the outdoor unit of an air conditioner provided by the embodiment of the application, at least one cleaning device is arranged in the shell. And the cleaning device comprises a water collecting box, a water pump, a water conveying pipe and a water spraying device. Meanwhile, the water pump is arranged in the water collecting box, so that the water inlet of the water pump is communicated with the water collecting box, the water outlet of the water pump is communicated with one end of the water conveying pipe, and the other end of the water conveying pipe is communicated with at least one water spraying device. And set up a plurality of water jets at water jet equipment towards one side of outdoor heat exchanger to with the washing liquid pump feeding water jet equipment in the water-collecting box when the water pump is opened, so that the washing liquid spouts to outdoor heat exchanger via a plurality of water jets, reach and carry out abluent purpose to outdoor heat exchanger, make the dirt that adheres to on outdoor heat exchanger wash, the cleaning mode is more intelligent and simple. Meanwhile, the heat exchange capability of the outdoor heat exchanger and the surrounding environment is improved, the operation reliability of the air-conditioning system is further improved, and the energy consumption of the air-conditioning system is reduced. And, because the water jet is the strip, can increase the water spray range and the cleaning ability of water jet equipment like this. Under this condition, outdoor heat exchanger can be more abundant by the washing to can further improve the reliability of air conditioning system operation, avoid appearing that refrigerating capacity reduces, operation consumption increase scheduling problem, improve user's use and experienced.

Further, the outdoor heat exchanger comprises a plurality of first fins, the plurality of first fins are arranged along a first direction, the plurality of water spray nozzles comprise a plurality of first water spray nozzles arranged at intervals along the first direction, and the plurality of first water spray nozzles spray water towards the plurality of first fins.

Further, one of said first water jets is directed toward one of said first fins; the opening size of the first water spray opening along the first direction is larger than or equal to the width of the first fin along the first direction; the opening size of the first water spray opening along the second direction is larger than or equal to the length of the first fin along the second direction; wherein the first direction and the second direction are perpendicular.

Further, the outdoor heat exchanger further includes a plurality of second fins located on one side of the plurality of first fins in the first direction; the plurality of second fins are arranged along a second direction, and the plurality of water spray ports further comprise a plurality of second water spray ports arranged at intervals along the second direction; wherein one of said second water jets faces one of said second fins.

Further, the water spray device includes: the water spraying device comprises a water spraying body and a connecting pipe, wherein the water spraying body is provided with an accommodating space; the surface of one side of the water spray body, which faces the outdoor heat exchanger, is a water spray surface, and the plurality of water spray ports are arranged on the water spray surface and are communicated with the accommodating space; and one end of the connecting pipe is communicated with the accommodating space, and the other end of the connecting pipe is communicated with the other end of the water delivery pipe.

Further, the outdoor heat exchanger includes a plurality of first fins arranged in a first direction; the plurality of water spray openings comprise a plurality of first water spray openings arranged at intervals along the first direction; a plurality of the first water jet nozzles jet water toward a plurality of the first fins; the water spraying surface is parallel to one side surface of the first fin facing the water spraying device; the vertical projection profile of the first water spray nozzle on the first fin is overlapped with the profile of the side surface of the first fin facing the water spray device.

Further, the water collecting box is positioned between the outdoor heat exchanger and the bottom of the shell, and the vertical projection of the outdoor heat exchanger at the bottom of the shell is positioned in the area of the water collecting box; the cleaning device also comprises a filter disc arranged at the water inlet of the water pump; the cleaning liquid is condensed water of the outdoor heat exchanger.

Further, the at least one outdoor heat exchanger includes a first outdoor heat exchanger and a second outdoor heat exchanger; the at least one water spraying device comprises a first water spraying device and a second water spraying device, the first water spraying device is located at one end, far away from the second outdoor heat exchanger, of the first outdoor heat exchanger, and the second water spraying device is located at one end, far away from the first outdoor heat exchanger, of the second outdoor heat exchanger.

An embodiment of another aspect of the present invention further provides an air conditioning system, which includes an indoor unit and an outdoor unit of an air conditioner in any one of the above embodiments.

The beneficial effects that the air conditioning system can produce are the same as those of the air conditioning outdoor unit, and are not described again here.

Drawings

Fig. 1a is a perspective view of an outdoor unit of an air conditioner according to an embodiment of the present disclosure;

FIG. 1b is a schematic cross-sectional view of the outdoor unit of FIG. 1 a;

FIG. 2 is an enlarged view of the outdoor unit of FIG. 1b, shown encircled at A;

fig. 3 is a bottom view of a water spraying device provided in an embodiment of the present application;

FIG. 4 is an enlarged view of the water jet assembly shown in FIG. 3 circled at B;

FIG. 5 is a front view of an assembled structure of a heat exchanger and a water injector according to an embodiment of the present application;

FIG. 6 is an enlarged view of the assembled heat exchanger and water injector arrangement of FIG. 5 circled at C;

FIG. 7a is a top view of an assembled structure of a heat exchanger and a water injector according to an embodiment of the present application;

FIG. 7b is a top view of another heat exchanger provided in an embodiment of the present application;

FIG. 7c is a top view of another alternative embodiment of the present disclosure;

FIG. 8 is an enlarged view of the assembled heat exchanger and water injector arrangement of FIG. 7a, circled at D;

FIG. 9 is an enlarged view of the assembled heat exchanger and water injector arrangement shown in FIG. 7a, circled at E;

fig. 10 is a schematic view of an outdoor unit of an air conditioner according to fig. 1b, wherein a casing is not shown;

FIG. 11 is a perspective view of an assembled structure of a heat exchanger and a water spray device according to an embodiment of the present disclosure;

FIG. 12 is a schematic view of an outdoor unit of the air conditioner shown in FIG. 1b from another angle;

fig. 13 is a perspective view of another outdoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 14 is a schematic view of another outdoor unit of an air conditioner according to fig. 13, in which a casing is not shown.

Reference numerals:

100. an air conditioner outdoor unit;

1. a housing; 11. an installation space;

2. a heat exchanger; 21. a first outdoor heat exchanger; 22. a second outdoor heat exchanger; 23. a first fin; 24. a second fin; 25. a first stage; 26. a second section; 27. a gap;

3. a cleaning device; 31. a water collection box; 311. an accommodating chamber; 32. a water pump; 321. a water inlet; 322. a water outlet; 33. a water delivery pipe; 34. a water spraying device; 341. a water jet; 3411. a first water jet; 3412. a second water jet; 342. a water spray body; 3421. spraying water; 343. a connecting pipe; 344. a first water spraying device; 345. a second water spraying device; 346. a first portion; 347. a second portion.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

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 invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally 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 invention can be understood in specific cases to those skilled in the art.

In the related art, an outdoor heat exchanger of an outdoor unit of an air conditioner is a fin-type heat exchanger. Fin heat exchangers are generally comprised of a plurality of fins and tube bundles. The fins are sleeved into the tube bundle according to the specified sheet distance, and heat exchange is carried out through large-area contact of the fins and air. When the air conditioner outdoor unit adopts the fin type heat exchanger for heat exchange, the fin type heat exchanger needs to be in contact with outdoor air. However, since the adjacent fins have gaps therebetween, in the long-term use of the outdoor unit of the air conditioner, the air dust particles such as dust, smoke dust and the like in the air flowing through the fins enter the gaps between the two adjacent fins and are accumulated on the fins of the fin-type heat exchanger, which hinders the fins from contacting the air, thereby reducing the heat exchange capacity of the fin-type heat exchanger. Furthermore, the refrigeration and heating effects of the air conditioning system are affected, and the reliability of the operation of the air conditioning system is reduced.

In order to solve the technical problem, the present application provides an air conditioning system. The structure of the air conditioning system of the embodiment of the present application will be explained below.

The air conditioning system according to the embodiment of the application can comprise an indoor unit and an outdoor unit of an air conditioner.

Specifically, the indoor unit may include an indoor heat exchanger.

Specifically, the outdoor unit of the air conditioner may include a compressor, an outdoor heat exchanger, and a throttling device (e.g., an electronic expansion valve).

The outdoor heat exchanger, the compressor, the indoor heat exchanger and the throttling device are communicated through a refrigerant pipeline to form a refrigerant loop.

When the air conditioning system is in a cooling mode, the outdoor heat exchanger serves as a condenser and the indoor heat exchanger serves as an evaporator. The refrigerant discharged by the compressor is a high-temperature high-pressure gaseous refrigerant, the high-temperature high-pressure gaseous refrigerant flows to the condenser and exchanges heat with the surrounding environment in the outdoor heat exchanger, the temperature of the refrigerant is reduced, the refrigerant flows through the throttling device to be throttled and reduced to form a low-temperature low-pressure liquid refrigerant, the refrigerant flows to the evaporator, the refrigerant exchanges heat with indoor air in the evaporator to reduce the temperature of the indoor environment, and the refrigerant after heat exchange flows into the compressor to complete refrigerant circulation.

When the air conditioning system is in a heating mode, the outdoor heat exchanger serves as an evaporator, and the indoor heat exchanger serves as a condenser. The high-temperature and high-pressure gaseous refrigerant discharged from the compressor flows to the condenser, and exchanges heat with the indoor environment in the condenser to improve the temperature of the indoor environment. Then, the refrigerant is throttled and depressurized by the throttling device to form a low-temperature and low-pressure liquid refrigerant, the liquid refrigerant flows to the evaporator, the refrigerant exchanges heat with the outdoor environment in the evaporator, and the refrigerant after heat exchange flows into the compressor to complete refrigerant circulation. The structure of the air conditioner outdoor unit will be described in detail below.

As shown in fig. 1a and 1b, an outdoor unit 100 of an air conditioner according to an embodiment of the present application may include: a casing 1, at least one outdoor heat exchanger 2 and a cleaning device 3. Here, "at least one" means that there may be one, two or more outdoor heat exchangers 2.

The housing 1 has an installation space 11 therein. For example, in the embodiment shown in fig. 1a and 1b, the housing 1 may be formed as a rectangular parallelepiped. The material of the housing 1 includes, but is not limited to, metal or plastic.

At least one outdoor heat exchanger 2 is located in the installation space 11 of the case 1. Meanwhile, the cleaning device 3 is also located in the installation space of the housing 1. The cleaning device 3 can clean the outdoor heat exchanger 2.

The above-described washing apparatus 3 will be described below:

as shown in fig. 1b, the cleaning device 3 comprises a water collecting box 31, a water pump 32, a water duct 33 and at least one water spraying device 34.

The sump case 31 is located in the housing 1 and serves to contain the cleaning solution. Specifically, the water collection box 31 may have an accommodation chamber 311. The cleaning liquid is stored in the accommodating chamber 311.

The water pump 32 is provided in the sump case 31. The water inlet 321 of the water pump 32 is communicated with the water collecting box 31. Illustratively, the water pump 32 may be supported on the bottom wall of the receiving cavity 311. The water inlet 321 of the water pump 32 is communicated with the accommodating cavity 311 of the water collecting box 31.

The water duct 33 is located inside the housing 1. One end of the water pipe 33 is connected with the water outlet 322 of the water pump 32. The other end of the water pipe 33 is communicated with a water spraying device 34.

By designing the water collecting box 31, the water pump 32, the water pipe 33 and the water spraying device 34, the water pump 32 can pump the cleaning liquid in the water collecting box 31 to the water spraying device 34 when the water pump 32 is turned on. When the water pump 32 is turned off, the supply of water to the water jet 34 is stopped. Therefore, the water can be selectively supplied to the water spray device 34 by turning on or off the water pump 32, and the degree of intelligence of the washing device 3 can be improved.

As shown in fig. 2 (which is an enlarged view of the circle at a in fig. 1 b), the water spray device 34 is located inside the housing 1. A gap 27 is provided between the water spray device 34 and the outdoor heat exchanger 2. A side of the water spray device 34 facing the outdoor heat exchanger 2 may be provided with a plurality of water spray ports 341.

Specifically, when the water pump 32 is operated, the water pump 32 may pump the cleaning solution from the water collecting tank 31 into the water spray 34. The cleaning liquid in the water spraying device 34 is sprayed through the plurality of water spraying ports 341 and sprayed toward the outdoor heat exchanger 2, so that the purpose of cleaning the outdoor heat exchanger 2 is achieved, and dirt attached to the outdoor heat exchanger 2 can be washed away.

As shown in fig. 3 and 4, the water jets 341 may be in the form of strips. For example, the water jet 341 may be formed as a rectangular nozzle, an oblong nozzle, or an oval nozzle, which is not limited in the present application. By providing the strip-shaped water spray nozzles 341, the water spray range of the water spray device 34 can be increased, so that the outdoor heat exchanger 2 can be more sufficiently cleaned by the water spray device 34.

Wherein, it is understood that the water jet 341 is "strip-shaped" in the sense that the water jet 341 may be an opening having a length and a width. Wherein, the length of the water jet 341 is perpendicular to the width of the water jet 341. The minimum dimension of the spout 341 in the longitudinal direction thereof is larger than the maximum dimension of the spout 341 in the width direction.

In the outdoor unit 100 of the air conditioner provided in the embodiment of the present application, at least one cleaning device 3 is provided in the casing 1. And such that the washing device 3 comprises a water collecting box 31, a water pump 32, a water duct 33 and a water spraying device 34. Meanwhile, the water pump 32 is arranged in the water collecting box 31, so that the water inlet 321 of the water pump 32 is communicated with the water collecting box 31, the water outlet 322 of the water pump 32 is communicated with one end of the water conveying pipe 33, and the other end of the water conveying pipe 33 is communicated with at least one water spraying device 34. And set up a plurality of water jet 341 in water jet 34 towards one side of outdoor heat exchanger 2 to pump the washing liquid in the water catch box 31 to water jet 34 when water pump 32 opens, so that the washing liquid spouts to outdoor heat exchanger 2 via a plurality of water jet 341, reaches and carries out abluent purpose to outdoor heat exchanger 2, makes the dirt that adheres to on outdoor heat exchanger 2 can be washed, and the cleaning method is more intelligent and simple. Therefore, the heat exchange capacity between the outdoor heat exchanger 2 and the surrounding environment is improved, the operation reliability of the air conditioning system is improved, and the energy consumption of the air conditioning system is reduced. Also, since the water jetting ports 341 have a bar shape, the water jetting range and the cleaning ability of the water jetting means 34 can be increased. Under this condition, outdoor heat exchanger 2 can be more abundant by the washing to can further improve the reliability of air conditioning system operation, avoid appearing that refrigerating capacity reduces, operation consumption increase scheduling problem, improve user's use and experienced.

In some embodiments, as shown in fig. 5 and 6 (which are enlarged views circled at C in fig. 5), the outdoor heat exchanger 2 includes a plurality of first fins 23. The plurality of first fins 23 are arranged in the first direction (X direction as shown in fig. 5). The plurality of water jetting ports 341 includes a plurality of first water jetting ports 3411 arranged at intervals in the first direction. The first water jetting ports 3411 jet water toward the first fins 23. This arrangement allows the plurality of first water ejection ports 3411 to clean the plurality of first fins 23 of the outdoor heat exchanger 2 in the first direction, which improves the cleaning capability of the cleaning device 3, thereby improving the reliability of the operation of the air conditioning system.

In some embodiments, as shown in fig. 7a and 8 (which are enlarged views circled at D in fig. 7 a), a first water jet 3411 is directed toward a first fin 23. The opening dimension (width indicated by W1 in fig. 8) of the first water jet 3411 in the first direction (X direction shown in fig. 7 a) is greater than or equal to the width (width indicated by W2 in fig. 8) of the first fin 23 in the first direction. The opening dimension (length shown by L1 in fig. 8) of the first water jet 3411 in the second direction (Y direction shown in fig. 7 a) is greater than or equal to the length (length shown by L2 in fig. 8) of the first fin 23 in the second direction. Wherein the first direction and the second direction are perpendicular. With this arrangement, each first fin 23 can be located within the water spraying range of the corresponding first water spraying port 3411, and the surface of each first fin 23 can be effectively cleaned.

In some embodiments, as shown in fig. 9 (which is an enlarged view circled at E in fig. 7 a), the outdoor heat exchanger 2 further includes a plurality of second fins 24. The plurality of second fins 24 are located on one side of the plurality of first fins 23 in the first direction. The plurality of second fins 24 are arranged in the second direction (the Y direction shown in fig. 9). The plurality of water jets 341 further includes a plurality of second water jets 3412 spaced apart in a second direction. Wherein a second water jet 3412 is directed toward a second fin 24. This arrangement allows the second water jetting ports 3412 to wash the second fins 24 of the outdoor heat exchanger 2 in the second direction, which improves the cleaning ability of the cleaning device 3, and thus improves the reliability of the operation of the air conditioning system.

In some embodiments, as shown in fig. 9 (which is an enlarged view of the circle E in fig. 7 a), the opening dimension of the second water jet 3412 in the second direction (width indicated by W3 in fig. 9) is greater than or equal to the width of the second fin 24 in the second direction (width indicated by W4 in fig. 9), and the opening dimension of the second water jet 3412 in the first direction (X direction in fig. 9) (length indicated by L3 in fig. 9) is greater than or equal to the length of the second fin 24 in the first direction (length indicated by L4 in fig. 9). This arrangement allows each second fin 24 to be located within the range of the corresponding second water ejection port 3412, thereby ensuring that the surface of each second fin 24 can be effectively cleaned.

For example, as shown in fig. 7a, the outdoor heat exchanger 2 includes a first section 25 and a second section 26. The water spray device 34 includes a first portion 346 and a second portion 347. The first section 25 extends in a first direction. The first section 25 has a plurality of first fins 23 thereon. The plurality of first fins 23 are arranged at regular intervals in the first direction. The first portion 346 corresponds to the first segment 25. The first water jet 3411 is disposed at the first portion 346. The first water jetting ports 3411 are uniformly spaced along the first direction, and one first water jetting port 3411 corresponds to one first fin 23. The opening dimension of the first water jet 3411 in the first direction is larger than the width of the first fin 23 in the first direction, and the opening dimension of the first water jet 3411 in the second direction is larger than the length of the first fin 23 in the second direction. The second section 26 extends in a second direction. The first section 25 and the second section 26 are arranged vertically and are in rounded transition. The second section 26 has a plurality of second fins 24. The plurality of second fins 24 are arranged at regular intervals in the second direction. The second portion 347 is connected to the first portion 346. And the second portion 347 is disposed perpendicular to the first portion 346. The second portion 347 corresponds to the second segment 26. A second water jet 3412 is provided to the second portion 347. The second water jetting ports 3412 are uniformly spaced in the second direction, and one second water jetting port 3412 corresponds to one second fin 24. The opening size of the second water jet 3412 in the second direction is larger than the width of the second fin 24 in the second direction, and the opening size of the second water jet 3412 in the first direction (X direction shown in fig. 9) is larger than the length of the second fin 24 in the first direction.

As another example, as shown in fig. 7b, the outdoor heat exchanger 2 is formed in a "U" shape. The outdoor heat exchanger 2 comprises one first section 25 and two second sections 26. The first segment 25 extends in a first direction. One end of the first segment 25 is connected to one second segment 26 and the other end of the first segment 25 is connected to the other second segment 26. Both second segments 26 extend in the second direction. The first section 25 has a plurality of first fins 23 thereon. Both second segments 26 have a plurality of second fins 24. In order to conform to the outer shape of the outdoor heat exchanger 2 shown in fig. 7b, the water spray device 34 includes a first portion 346 and two second portions 347 as shown in fig. 7 c. Wherein the first portion 346 corresponds to the first segment 25. The first water jet 3411 is disposed at the first portion 346. The first portion 346 is connected to one second portion 347 at one end and connected to the other second portion 347 at the other end. One second section 347 corresponds to one second segment 26. The second portions 347 each have a plurality of second water jets 3412.

In some embodiments, as shown in fig. 10 and 11, the water spray device 34 includes: a water spray body 342 and a connection pipe 343, the water spray body 342 has an accommodating space, and a side surface of the water spray body 342 facing the outdoor heat exchanger 2 is a water spray surface 3421. A plurality of water jetting ports 341 (shown in fig. 2 in an enlarged view) are provided on the water jetting surface 3421 and communicate with the accommodation space. One end of the connection pipe 343 is communicated with the receiving space, and the other end of the connection pipe 343 is communicated with the other end of the water duct 33. The cleaning liquid enters the connecting pipe 343 through the water pipe 33, enters the accommodating space of the water spray body 342 from the connecting pipe 343, and is sprayed out from the water spray ports 341 communicated with the accommodating space to clean the outdoor heat exchanger 2. The water spray device 34 is simple in structure and convenient to manufacture and produce.

The water spraying body 342 and the connecting pipe 343 are integrally formed, so that the water spraying body 342 and the connecting pipe 343 are made of the same material, and a whole with a complete surface and without unsealing can be formed by compression molding or injection molding and other methods, so that the water spraying body 342 and the connecting pipe 343 are not required to be fixedly connected by adopting an additional fixing mode, and the preparation process difficulty is reduced. For example, the water spraying device 34 may be made of aluminum or aluminum alloy, which not only has high structural strength, but also reduces the cost.

In some embodiments, as shown in fig. 11, the outdoor heat exchanger 2 includes a plurality of first fins 23. The plurality of first fins 23 are arranged in the first direction (X direction as shown in fig. 5). The plurality of water jets 341 includes a plurality of first water jets 3411 (shown in fig. 8) spaced apart in a first direction. The first water jetting ports 3411 jet water toward the first fins 23. The water spouting surface 3421 is parallel to a side surface of the first fin 23 facing the water spouting device 34. This arrangement allows the water spray device 34 to better clean the outdoor heat exchanger 2.

In some embodiments, the profile of the perpendicular projection (i.e., the orthographic projection) of the first water jet 3411 on the first fin 23 and the profile of the side surface of the first fin 23 facing the water jet 34 may overlap. This arrangement ensures that the first water jet 3411 covers the first fin 23 to effectively clean the first fin 23.

The term "overlap" means that the profile of the perpendicular projection (i.e., the orthographic projection) of the first water jet 3411 on the first fin 23 may completely or partially coincide with the profile of the side surface of the first fin 23 facing the water jet 34.

In some embodiments, referring to fig. 11, in the case where the outdoor heat exchanger 2 includes a plurality of second fins 24 and the plurality of water jets 341 includes the second water jets 3412 arranged at intervals (as shown in fig. 9), the water jetting surface 3421 is parallel to a side surface of the second fin 24 facing the second water jet 345, and at the same time, a profile of a perpendicular projection (i.e., a front projection) of the second water jets 3412 on the second fin 24 may overlap with a profile of a side surface of the second fin 24 facing the water jet 34. This arrangement ensures that the second water jetting ports 3412 cover the second fins 24 for effective cleaning of the second fins 24.

"overlap" means that the profile of the perpendicular projection (i.e., orthographic projection) of the second water jet 3412 on the second fin 24 may be completely or partially coincident with the profile of the surface of the second fin 24 on the side facing the water jet 34.

In some embodiments, as shown in fig. 12 (a schematic view of an air conditioner outdoor unit 100 provided in an embodiment of the present application from another angle) and fig. 1b, the water collecting box 31 is located between the outdoor heat exchanger 2 and the bottom of the casing 1. The vertical projection (i.e., orthographic projection) of the outdoor heat exchanger 2 on the bottom of the casing 1 is located in the region of the water collection box 31. Therefore, in the using process of the air conditioning system, on one hand, the water collecting box 31 can be used for collecting condensed water of the outdoor heat exchanger 2, and on the other hand, the water collecting box can be used for collecting cleaning liquid after cleaning the outdoor heat exchanger 2.

In some embodiments, in order to improve the cleaning effect on the outdoor heat exchanger 2 and prevent the water pump 32 from pumping the cleaning liquid containing the dirt to the water spraying device 34 to cause the secondary pollution problem of the outdoor heat exchanger 2, the cleaning device 3 further includes a filter sheet disposed at the water inlet 321 of the water pump 32. In this way, the filter disc can be used to filter the cleaning solution, so as to ensure the cleanliness of the cleaning solution pumped to the water spraying device 34 by the water pump 32, and prevent the impurities and other substances in the cleaning solution from entering the water spraying device 34, thereby causing the blockage of the water spraying port 341.

In some specific examples, the cleaning liquid may be condensed water of the outdoor heat exchanger 2. Thus, the cleaning liquid is condensed water of the outdoor heat exchanger 2, and waste of water resources can be avoided.

Wherein, the condensed water of the outdoor heat exchanger 2 is generated when the air conditioning system defrosts. Because the defrosting of the air conditioning system is only used in the winter and in a low-temperature environment, namely, the air conditioning system can generate condensed water only when defrosting is carried out in winter. In order to ensure that when the ambient temperature is higher, the water collection box 31 still has sufficient cleaning liquid, the air conditioning system can start a heating mode when the ambient temperature is higher than 10 ℃, and because the outdoor ambient temperature is high, the heating quantity of the air conditioning system is large, and the water collection box 31 can collect enough condensed water only in a short time.

In some embodiments, a drain may be provided on the water collecting box 31. After the outdoor heat exchanger 2 is cleaned, the dirty water in the water collecting box 31 may be drained by the drainage device. For example, the drain means includes a drain hole provided at the bottom of the sump case 31 and an electronic valve provided at the drain hole. The electronic valve can control the opening and closing of the drain hole. The drain hole can be in a normally closed state, when the outdoor heat exchanger 2 is cleaned, the electronic valve is opened to open the drain hole to drain dirty water, and when the cleaning liquid is drained, the electronic valve is closed to close the drain hole.

In some embodiments, the sump case 31 communicates with a drain duct of the indoor unit. Specifically, when the indoor unit operates in the cooling mode, condensed water is generated, and the condensed water may enter the water collecting box 31 through the drainage pipe. The water resource can be fully utilized by the arrangement, so that the air conditioning system is more energy-saving and environment-friendly.

In some embodiments, the outdoor unit 100 may further include a water replenishing pipe, and one end of the water replenishing pipe is communicated with the water collecting box 31. The other end of the water replenishing pipe is communicated with an external water source. Wherein, the external water source can be a tap water pipe or a water tank. Therefore, timely supplement of cleaning liquid is guaranteed, and the situation that the cleaning liquid is too little and cleaning of the outdoor heat exchanger 2 cannot be guaranteed due to the fact that the air conditioning system does not produce condensed water because of too little condensed water produced by the air conditioning system or under certain working conditions is prevented.

In some embodiments, as shown in fig. 13 and 14, the at least one outdoor heat exchanger 2 includes a first outdoor heat exchanger 21 and a second outdoor heat exchanger 22. The at least one water spray 34 includes a first water spray 344 and a second water spray 345. The first water spraying device 344 is located at one end of the first outdoor heat exchanger 21 far from the second outdoor heat exchanger 22. The first water spray device 344 may spray the washing liquid toward the first outdoor heat exchanger 21. The second water injection device 345 is located at one end of the second outdoor heat exchanger 22 far from the first outdoor heat exchanger 21. The second water spray device 345 may spray the cleaning solution toward the second outdoor heat exchanger 22. By the arrangement, the cleaning effect of the first outdoor heat exchanger 21 and the second outdoor heat exchanger 22 is improved, insufficient cleaning of the first outdoor heat exchanger 21 and the second outdoor heat exchanger 22 can be avoided, and therefore the problems that energy consumption of an air conditioning system is improved and refrigerating capacity is weakened can be avoided.

The first outdoor heat exchanger 21 and the second outdoor heat exchanger 22 may be an integral piece or may be separate pieces. If the outdoor heat exchanger 21 and the second outdoor heat exchanger 22 are one piece, they are easy to be disassembled. If the outdoor heat exchanger 21 and the second outdoor heat exchanger 22 are separate components, the first outdoor heat exchanger 21 and the second outdoor heat exchanger 22 need to be installed separately, which increases the assembly time.

For example, in the embodiment shown in fig. 14, the first and second outdoor heat exchangers 21 and 22 are arranged in the third direction (Z direction shown in fig. 14), and the second outdoor heat exchanger 22 is located at one end of the first outdoor heat exchanger 21 close to the header tank 31. In the third direction, the first water spray 344 is located at the other end of the first outdoor heat exchanger 21 away from the sump case 31, and the second water spray 345 is located at one end of the second outdoor heat exchanger 22 close to the sump case 31. The other end of the water pipe 33 is communicated with both the first water injector 344 and the second water injector 345. When the first and second outdoor heat exchangers 21 and 22 need to be cleaned, the first water spray device 344 sprays the first and second outdoor heat exchangers 21 and 22 in the third direction toward the water collection box 31, and the second water spray device 345 sprays the first and second outdoor heat exchangers 21 and 22 in the third direction away from the water collection box 31, so that the first and second outdoor heat exchangers 21 and 22 can be cleaned. Wherein the third direction is perpendicular to both the first direction and the second direction.

In some embodiments, in order to improve the intelligence of the air conditioning system, the outdoor unit 100 may further include a detection device (not shown). The detection device may detect an operation parameter of the outdoor unit 100 (for example, a refrigerant temperature at the refrigerant outlet of the outdoor heat exchanger, a refrigerant pressure at the refrigerant outlet of the outdoor heat exchanger, an absolute value of a temperature difference between the refrigerant outlet and the refrigerant inlet of the outdoor heat exchanger, and/or an absolute value of a pressure difference between the refrigerant outlet and the refrigerant inlet of the outdoor heat exchanger), and may determine whether the outdoor heat exchanger 2 needs to be cleaned according to a relationship between a current operation parameter detected by the detection device and a preset value. When the detection device detects that the outdoor heat exchanger 2 needs to be cleaned, the cleaning device 3 is used for cleaning the outdoor heat exchanger 2.

For example, when the detection device detects that the absolute value of the temperature difference between the refrigerant outlet and the refrigerant inlet of the outdoor heat exchanger is smaller than the preset value, it is determined that the outdoor heat exchanger 2 needs to be cleaned.

In some embodiments, a liquid level sensor (not shown) may be disposed in the accommodating cavity 311. The liquid level sensor may be used to detect the liquid level height within the sump case 31. When the cleaning liquid in the water collection box 31 reaches the preset liquid level of the liquid level sensor, the water pump 32 is turned on to pump the cleaning liquid in the water collection box 31 into the water pipe 33 from the water inlet 321.

In some embodiments, the water pipe 33 may be made of rubber, which facilitates installation of the water pipe 33, so that components in the outdoor unit 100 may be more reasonably arranged.

In some embodiments, the water pipe 33 may be provided with a pressurizing device, so that the water delivered to the water spraying device 34 is high-pressure water, thereby improving the cleaning capability of the water spraying device 34.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An outdoor unit of an air conditioner, comprising:

a housing;

at least one outdoor heat exchanger located within the housing;

a cleaning device, comprising:

the water collecting box is positioned in the shell and used for bearing cleaning liquid;

the water pump is arranged in the water collecting box, and a water inlet of the water pump is communicated with the water collecting box;

the water conveying pipe is positioned in the shell, and one end of the water conveying pipe is connected with a water outlet of the water pump;

at least one water spraying device is positioned in the shell, a gap is formed between the water spraying device and the outdoor heat exchanger, and the other end of the water conveying pipe is communicated with the water spraying device; and one side of the water spraying device, which faces the outdoor heat exchanger, is provided with a plurality of water spraying ports, and the water spraying ports are strip-shaped.

2. An outdoor unit of an air conditioner according to claim 1,

the outdoor heat exchanger comprises a plurality of first fins which are arranged along a first direction;

the plurality of water spray openings comprise a plurality of first water spray openings arranged at intervals along the first direction; the plurality of first water jet nozzles spray water toward the plurality of first fins.

3. The outdoor unit of claim 2, wherein,

one said first water jet directed toward one said first fin;

the opening size of the first water spray opening along the first direction is larger than or equal to the width of the first fin along the first direction;

the size of the opening of the first water spray opening along a second direction is larger than or equal to the length of the first fin along the second direction; wherein the first direction and the second direction are perpendicular.

4. An outdoor unit of an air conditioner according to claim 3,

the outdoor heat exchanger further includes a plurality of second fins located on one side of the plurality of first fins in a first direction; the plurality of second fins are arranged along a second direction;

the plurality of water spray nozzles further comprise a plurality of second water spray nozzles arranged at intervals along the second direction; wherein one of said second water jets faces one of said second fins.

5. The outdoor unit of claim 1 to 4, wherein the water spray means comprises:

a water spray body having an accommodating space; the surface of one side of the water spray body, which faces the outdoor heat exchanger, is a water spray surface, and the plurality of water spray ports are arranged on the water spray surface and are communicated with the accommodating space; and

and one end of the connecting pipe is communicated with the accommodating space, and the other end of the connecting pipe is communicated with the other end of the water delivery pipe.

6. The outdoor unit of claim 5, wherein the outdoor heat exchanger includes a plurality of first fins arranged in a first direction;

the plurality of water spray openings comprise a plurality of first water spray openings arranged at intervals along the first direction; a plurality of the first water jet nozzles jet water toward a plurality of the first fins;

the water spraying surface is parallel to one side surface of the first fin facing the water spraying device;

the vertical projection profile of the first water spray nozzle on the first fin is overlapped with the profile of the side surface of the first fin facing the water spray device.

7. The outdoor unit of claim 1, wherein the header box is positioned between the outdoor heat exchanger and the bottom of the casing, and a vertical projection of the outdoor heat exchanger to the bottom of the casing is positioned in an area where the header box is positioned; the cleaning device also comprises a filter disc arranged at the water inlet of the water pump; the cleaning liquid is condensed water of the outdoor heat exchanger.

8. The outdoor unit of claim 1, wherein the at least one outdoor heat exchanger includes a first outdoor heat exchanger and a second outdoor heat exchanger;

the at least one water spraying device comprises a first water spraying device and a second water spraying device, the first water spraying device is located at one end, far away from the second outdoor heat exchanger, of the first outdoor heat exchanger, and the second water spraying device is located at one end, far away from the first outdoor heat exchanger, of the second outdoor heat exchanger.

9. An air conditioning system comprising an indoor unit and the outdoor unit of any one of claims 1 to 8.

10. The air conditioning system as claimed in claim 9, wherein the sump case communicates with a drain duct of the indoor unit.

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