CN213300308U - Outdoor unit of air conditioner - Google Patents

Abstract

The utility model discloses an outdoor unit of air-conditioner, include: the indoor unit comprises a machine body, a water drainage tank is formed at the bottom in the machine body, an outdoor heat exchanger and a compressor are arranged in the machine body, and the outdoor heat exchanger is positioned above the water drainage tank; a heat conductive member provided on an outer surface of the compressor; the heat pipe heat exchanger comprises a heat absorption part and a heat dissipation part, the heat absorption part and the heat dissipation part are mutually communicated, the heat dissipation part is arranged between the outdoor heat exchanger and the drainage groove, and the heat absorption part is in contact with the heat conduction piece. According to the utility model discloses outdoor machine of air-conditioner guarantees the heat exchange efficiency of outdoor heat exchanger and the stability of the holistic effect of heating of air conditioner under low temperature environment.

Description

Outdoor unit of air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioner technique and specifically relates to an air-conditioner outdoor unit is related to.

Background

In the related art, when the air conditioner is used in a low-temperature or even a high-cold area, the ambient temperature of the outdoor unit of the air conditioner is usually below the freezing point, so that the condensed water at the bottom of the outdoor heat exchanger and in the drain tank of the outdoor unit of the air conditioner is easily frozen, thereby affecting the normal drainage of the condensed water. Especially, when the air conditioner needs defrosting operation, the condensed water cannot be discharged in time, the residual condensed water will be frosted again after the defrosting operation is finished, even frozen, if the condition repeatedly occurs for many times, the heating effect of the air conditioner is gradually deteriorated, and the use effect of the air conditioner is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide an outdoor unit of an air conditioner, which can ensure the heat exchange efficiency of an outdoor heat exchanger and the stability of the overall heating effect of the air conditioner in a low temperature environment.

According to the utility model discloses outdoor machine of air-conditioner, include: the indoor unit comprises a machine body, a water drainage tank is formed at the bottom in the machine body, an outdoor heat exchanger and a compressor are arranged in the machine body, and the outdoor heat exchanger is positioned above the water drainage tank; a heat conductive member provided on an outer surface of the compressor; the heat pipe heat exchanger comprises a heat absorption part and a heat dissipation part, the heat absorption part and the heat dissipation part are mutually communicated, the heat dissipation part is arranged between the outdoor heat exchanger and the drainage groove, and the heat absorption part is in contact with the heat conduction piece.

According to the utility model discloses outdoor machine of air-conditioner, through set up the heat-conducting piece on the surface at the compressor, and set up the heat pipe exchanger of heat absorption portion and radiating part including inside intercommunication each other, and establish the radiating part between outdoor heat exchanger and water drainage tank, heat absorption portion and heat-conducting piece contact, can be with heat transfer to outdoor heat exchanger's bottom and water drainage tank of producing in the compressor working process, thereby can avoid freezing and can't follow water drainage tank exhaust phenomenon because the comdenstion water of outdoor heat exchanger's bottom and water drainage tank department in cold environment, and then can guarantee outdoor heat exchanger's heat exchange efficiency, guarantee the whole stability of the effect of heating in low temperature environment of air-conditioner.

According to some embodiments of the invention, the heat dissipating portion extends along an extending direction of a bottom of the outdoor heat exchanger.

According to some embodiments of the utility model, be equipped with at least a set of protruding group in the water drainage tank, protruding group includes along two archs that the width direction interval of heat dissipation part set up, the heat dissipation part supports two in the arch on at least one with the heat dissipation part with water drainage tank's diapire is spaced apart.

According to some embodiments of the present invention, both sides of the width direction of the heat dissipating part are respectively supported on at least one set of two of the protrusions.

According to some embodiments of the present invention, the heat dissipating portion corresponds the part of the protruding group is provided with a supporting portion, the width of the supporting portion is greater than the width of the heat dissipating portion except the part of the supporting portion, the heat dissipating portion passes through the supporting portion supports at least one set of two of the protruding group on the protrusion.

According to some embodiments of the invention, the drainage channel comprises at least one communication channel defined between two of the protrusions; and a through hole is formed in the supporting part and is opposite to the communication groove.

According to some embodiments of the present invention, the protruding group is a plurality of, a plurality of the protruding group is provided along the extending direction interval of the heat dissipating part.

According to some embodiments of the present invention, the heat-conducting member includes a first heat-conducting portion provided at a bottom of the compressor and a second heat-conducting portion provided on an outer peripheral surface of the compressor, a lower end of the second heat-conducting portion is connected to the first heat-conducting portion, and the heat-absorbing portion is provided on a lower surface of the first heat-conducting portion and in close contact with the first heat-conducting portion.

According to some embodiments of the present invention, the second heat-transfer portion is a plurality of second heat-transfer portions spaced apart from each other in a circumferential direction of the compressor.

According to some embodiments of the invention, the heat dissipating portion is not lower than the heat absorbing portion.

According to some embodiments of the present invention, the heat absorbing part and the heat dissipating part are connected to each other by a connecting part, and the connecting part is covered with a heat insulating member.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an outdoor unit for an air conditioner according to an embodiment of the present invention;

fig. 2 is an interior schematic view of the outdoor unit of the air conditioner shown in fig. 1;

fig. 3 is an exploded view of the outdoor unit of the air conditioner shown in fig. 2;

fig. 4 is a schematic view illustrating positions of a compressor, a heat pipe exchanger and a bottom of an outdoor unit of the air conditioner shown in fig. 2;

fig. 5 is a schematic view showing the positions of the bottom of the outdoor unit, the compressor, and the heat pipe exchanger according to another embodiment of the present invention;

fig. 6 is a schematic view illustrating positions of a bottom of an outdoor unit, a compressor and a heat pipe exchanger according to still another embodiment of the present invention;

fig. 7 is a schematic diagram of a heat pipe heat exchanger according to an embodiment of the present invention.

Reference numerals:

an outdoor unit 100 of an air conditioner; a machine body 1; a water discharge tank 11; a set of protrusions 111; a protrusion 1111; a communication groove 112; a drain hole 113; an outdoor heat exchanger 2; a compressor 3; a reservoir 31; a heat-conductive member 4; a first heat conduction portion 41; a second heat conduction portion 42; a heat pipe heat exchanger 5; a heat absorbing part 51; a heat dissipating portion 52; a first heat dissipating section 521; a second heat dissipation section 522; a support portion 521; a through hole 5211; a connecting portion 53.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the 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 the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the 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 cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the 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 (hereinafter, an outdoor heat exchanger), the indoor unit of the air conditioner includes an indoor heat exchanger (hereinafter, 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 serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

An outdoor unit 100 for an air conditioner according to an embodiment of the present invention will be described with reference to fig. 1 to 7.

As shown in fig. 1 to 7, an outdoor unit 100 for an air conditioner according to an embodiment of the present invention may include a body 1, a heat-conducting member 4, and a heat pipe exchanger 5.

Specifically, as shown in fig. 1 to 3, a drain tank 11 is formed at the bottom inside the machine body 1, the outdoor heat exchanger 2 and the compressor 3 are provided inside the machine body 1, and the outdoor heat exchanger 2 is located above the drain tank 11, and thus the arrangement is such that the condensed water generated by the outdoor heat exchanger 2 can drip into the drain tank 11 and can be smoothly discharged from the drain tank 11.

Referring to fig. 2, a heat conductive member 4 is provided on an outer surface of the compressor 3 to absorb residual heat generated when the compressor 3 operates. As shown in fig. 2 to 3 and 7, the heat pipe heat exchanger 5 includes a heat absorbing part 51 and a heat dissipating part 52 whose insides communicate with each other, the heat dissipating part 52 being provided between the outdoor heat exchanger 2 and the drain tank 11, the heat absorbing part 51 being in contact with the heat conductive member 4. With this arrangement, when the outdoor unit 100 of the air conditioner operates, the compressor 3 operates and generates heat, the heat conducting member 4 absorbs and collects waste heat of the compressor 3 and transfers the waste heat absorbed and collected by the compressor 3 to the heat absorbing part 51 of the heat pipe exchanger 5, the refrigerant in the heat absorbing part 51 absorbs the heat transferred from the heat conducting member 4 and evaporates and gasifies, the gasified refrigerant flows to the heat dissipating part 52 and continues to flow along the flow path of the heat dissipating part 52, and transfers the heat to the bottom of the outdoor heat exchanger 2 and the drain tank 11, so that the temperatures of the bottom of the outdoor heat exchanger 2 and the drain tank 11 are not lower than the freezing point temperature, thereby ensuring that the frozen condensed water cannot occur in these areas. As the gasified refrigerant releases heat and cools in the flow path of the heat radiating portion 52, it condenses into a liquid phase, the liquid refrigerant flows back to the heat absorbing portion 51 again, and the liquid refrigerant returning to the heat absorbing portion 51 absorbs heat transferred by the heat conductive member 4 again to be gasified and then enters the above-described cycle. Therefore, the condition that condensed water at the bottom of the outdoor heat exchanger 2 and the drainage groove 11 is frozen and cannot be discharged from the drainage groove 11 in a cold environment, particularly in an environment lower than the freezing point, can be avoided, the heat exchange efficiency of the outdoor heat exchanger 2 is ensured, and the overall heating performance of the air conditioner is improved. Alternatively, the coolant may be ethanol or the like.

Therefore, according to the utility model discloses outdoor machine of air-conditioner 100, through set up heat-conducting member 4 on compressor 3's surface, and set up heat absorption portion 51 and heat pipe exchanger 5 of heat dissipation part 52 including inside intercommunication each other, and establish heat dissipation part 52 between outdoor heat exchanger 2 and water drainage tank 11, heat absorption portion 51 and the contact of heat-conducting member 4, can be with heat transfer to outdoor heat exchanger 2's bottom and water drainage tank 11 that produces in the compressor 3 working process, thereby can avoid in cold environment because the comdenstion water of outdoor heat exchanger 2's bottom and water drainage tank 11 department freezes and can't follow water drainage tank 11 exhaust phenomenon, and then can guarantee outdoor heat exchanger 2's heat exchange efficiency, guarantee the whole stability of the effect of heating in low temperature environment of air conditioner.

According to some embodiments of the present invention, as shown in fig. 2 and 4 to 6, the heat radiating portion 52 extends in the extending direction of the bottom of the outdoor heat exchanger 2. For example, in the example of fig. 2 to 3, the outdoor heat exchanger 2 has a substantially L-shaped cross-sectional shape, and the outdoor heat exchanger 2 is disposed adjacent to the side wall of the machine body 1. With this arrangement, the gasified refrigerant can flow along the extending direction of the heat dissipating portion 52, that is, the extending direction of the bottom of the outdoor heat exchanger 2 and the path direction of the drain groove 11 after flowing from the heat absorbing portion 51 to the heat dissipating portion 52, so that the heat can be efficiently transmitted to the bottom of the outdoor heat exchanger 2 and the drain groove 11 in a large area, the heat transfer efficiency of the heat dissipating portion 52 to the bottom of the outdoor heat exchanger 2 and the drain groove 11 is improved, and the freezing of the condensed water at the bottom of the outdoor heat exchanger 2 and the drain groove 11 can be further prevented.

Further, as shown in fig. 3 to 6, at least one set of protrusions 111 is provided in the drain tank 11, the protrusions 111 include two protrusions 1111 provided at intervals in a width direction of the heat dissipation part 52, and the heat dissipation part 52 is supported on at least one of the two protrusions 1111 to space the heat dissipation part 52 from the bottom wall of the drain tank 11. Thus, by vertically spacing the heat radiating portion 52 and the bottom wall of the drain tank 11, the condensed water generated by the outdoor heat exchanger 2 can be smoothly dropped into the drain tank 11, and the condensed water can be smoothly discharged from the drain tank 11.

As shown in fig. 3, the bottom of the drain tank 11 may be formed with at least one drain hole 113 so that the condensed water in the drain tank 11 can be drained from the drain hole 113.

According to some alternative embodiments of the present invention, referring to fig. 4 to 5, both sides of the width direction of the heat dissipation part 52 are supported on two protrusions 1111 of at least one set of protrusion sets 111, respectively. With such an arrangement, the heat dissipation portion 52 and the bottom of the outdoor heat exchanger 2 can have a larger contact area, so that the heat dissipation portion 52 can be ensured to have a larger heat dissipation area between the bottom of the outdoor heat exchanger 2 and the drainage groove 11, the heat transfer efficiency of the heat dissipation portion 52 is improved, and the phenomenon that the condensed water freezes cannot occur at the bottom of the whole outdoor heat exchanger 2 is further ensured.

Of course, the present invention is not limited thereto, and according to other alternative embodiments of the present invention, as shown in fig. 5, the portion of the heat dissipating part 52 corresponding to the protrusion set 111 is provided with the supporting portion 521, the width of the supporting portion 521 is greater than the width of the portion of the heat dissipating part 52 except the supporting portion 521, and the heat dissipating part 52 is supported on the two protrusions 1111 of the at least one protrusion set 111 through the supporting portion 521. With the arrangement, most part of the bottom of the outdoor heat exchanger 2 is not shielded by the heat pipe heat exchanger 5, so that the heat pipe heat exchanger 5 can heat the outdoor heat exchanger 2 and simultaneously does not affect the discharge of condensed water.

Further, referring to fig. 3 and 5, the drain groove 11 includes at least one communication groove 112, the communication groove 112 is defined between two protrusions 1111, and the communication groove 112 can ensure that the condensed water flows unimpeded in the drain groove 11. The support portion 521 is provided with a through hole 5211, the through hole 5211 is opposite to the communicating groove 112, and thus, the condensed water can be dripped into the drainage groove 11 from the bottom of the outdoor heat exchanger 2 through the through hole 5211, and the area of the bottom of the outdoor heat exchanger 2, which is shielded by the heat pipe exchanger 5, can be further reduced by the through hole, so that the condensed water can be further promoted to be dripped smoothly into the drainage groove 11 while the heat pipe exchanger 5 performs a heating function, and the condensed water can be discharged from the drainage groove 11.

Note that, in the case where the drain groove 11 includes the plurality of communication grooves 112, the plurality of communication grooves 112 are also communicated with each other in the drain groove 11 to ensure an unimpeded flow of the condensed water in the drain groove 11. The meaning of "a plurality" described in the present invention is two or more.

According to still other alternative embodiments of the present invention, as shown in fig. 3 to 6, the plurality of protrusion sets 111 are provided, and the plurality of protrusion sets 111 are disposed at intervals along the extending direction of the heat dissipating portion 52. Thus, by providing the plurality of projection groups 111, it is possible to ensure that the outdoor heat exchanger 2 can be supported better while ensuring that the bottom of the outdoor heat exchanger 2 is spaced apart from the bottom wall of the drain tank 11. Further, the projection groups 111 may be disposed at regular intervals along the extending direction of the heat dissipation portion 52, or may be disposed at non-regular intervals.

According to some embodiments of the present invention, referring to fig. 2 to 3 and 6, the heat conduction member 4 includes a first heat conduction portion 41 provided at the bottom of the compressor 3 and a second heat conduction portion 42 provided on the outer peripheral surface of the compressor 3, and the lower end of the second heat conduction portion 42 is connected to the first heat conduction portion 41, so that the heat conduction member 4 can contact the heat dissipation surface of the compressor 3 over a large area, absorbing more waste heat from the compressor 3. The heat absorbing part 51 may be provided on a lower surface of the first heat transfer part 41 and in close contact with the first heat transfer part 41, so that the waste heat absorbed by the heat transfer member 4 from the compressor 3 is transferred to the heat absorbing part 51 in time. With this arrangement, it is possible to ensure that more residual heat of the compressor 3 is transferred to the heat conductive member 4, and the heat conductive member 4 can transfer more of the heat collected therein to the heat absorbing portion 51, improving the heat absorbing efficiency of the heat absorbing portion 51 of the heat pipe exchanger 5.

Further, the first heat transfer portion 41 may be in close contact with the bottom of the compressor 3, and the second heat transfer portion 42 may be in close contact with the outer circumferential surface of the compressor 3 to more efficiently absorb and collect more heat from the compressor 3.

Alternatively, the second heat conduction portion 42 is plural, and the plural second heat conduction portions 42 are spaced apart from each other in the circumferential direction of the compressor 3. The plurality of second heat transfer portions 42 are spaced apart to avoid other components of the outdoor unit 100, such as the accumulator 31 of the compressor 3, and the like, from affecting the arrangement of the other components of the outdoor unit 100. Three second heat conduction portions 42 are shown in fig. 2-3 for illustrative purposes, but it is obvious to those skilled in the art after reading the technical solution of the present application that the solution can be applied to two or more second heat conduction portions 42, which also falls within the protection scope of the present invention. Alternatively, a plurality of second heat conduction portions 42 may be provided at even intervals in the circumferential direction of the compressor 3 to facilitate the manufacture of the heat conduction member 4; of course, the plurality of second heat conduction portions 42 may be disposed at non-uniform intervals along the circumferential direction of the compressor 3 according to actual requirements.

Alternatively, the heat conductive member 4 is a heat sink, which is excellent in heat absorption and heat conductivity and can efficiently transfer the heat absorbed from the compressor 3 to the heat pipe exchanger 5. But is not limited thereto.

According to some embodiments of the present invention, the heat dissipating portion 52 is not lower than the heat absorbing portion 51. This ensures that the refrigerant that absorbs heat from the heat absorbing portion 51 and vaporizes enters the heat dissipating portion 52 and condenses in the heat dissipating portion 52 into a liquid state, and then flows back to the heat absorbing portion 51 more quickly, thereby finally improving the heat transfer rate and efficiency of the heat pipe heat exchanger 5.

Alternatively, the height of the heat dissipating part 52 may be equal to the height of the heat absorbing part 51, in other words, the heat dissipating part 52 and the heat absorbing part 51 may be on the same horizontal plane. The liquid refrigerant absorbs heat in the heat absorbing portion 51 and is gasified, then flows from the heat absorbing portion 51 to the heat dissipating portion 52, is condensed into a liquid state by heat dissipation in the heat dissipating portion 52, and then flows back to the heat absorbing portion 51 by the capillary force of the capillary structure of the inner wall of the heat pipe exchanger 5.

Or alternatively, the heat dissipation part 52 is located at a higher height than the heat absorption part 51. In this configuration, the gaseous refrigerant is condensed into a liquid state by heat radiation from the heat radiating portion 52, and then flows back to the heat absorbing portion 51 by its own gravity, thereby further increasing the speed of returning the liquid refrigerant from the heat radiating portion 52 to the heat absorbing portion 51. Further, the heat dissipating part 52 may be disposed higher than the heat absorbing part 51 in various ways, for example, the heat dissipating part 52 is entirely horizontal, and the heat dissipating part 52 is higher than the heat absorbing part 51; alternatively, the heat dissipating part 52 extends obliquely downward in a direction toward the heat absorbing part 51. But is not limited thereto.

According to a further embodiment of the present invention, as shown in fig. 7, a connecting portion 53 is connected between the heat absorbing portion 51 and the heat dissipating portion 52, and the connecting portion 53 is externally covered with a heat insulating member (not shown). The liquid refrigerant absorbs heat in the heat absorbing portion 51 and is gasified, and then flows through the connecting portion 53 and further flows into the heat radiating portion 52. From this, through having the heat preservation spare at connecting portion 53 coats outward, can avoid the coolant after the gasification to release heat liquefaction in connecting portion 53 department, and then guarantee that the coolant after the gasification flows into heat dissipation portion 52 more, releases more heat at heat dissipation portion 52, finally ensures that the coolant after the gasification mainly releases in the region department of the bottom and the water drainage tank 11 that are close to outdoor heat exchanger 2 to realize better comdenstion water anti-freezing effect.

Alternatively, the width of the connecting portion 53 is smaller than the width of the heat dissipation portion 52, which can ensure that the surface area of the connecting portion 53 is small and thus the heat dissipation area is small, and further avoid the gasified refrigerant from heat dissipation and liquefaction at the connecting portion 53.

Alternatively, the heat dissipating part 52 may include a first heat dissipating section 521 and a second heat dissipating section 522, the second heat dissipating section 522 and the second heat dissipating section 522 are communicated, one end of the connection part 53 is communicated with the heat absorbing part 51, and the other end of the connection part 53 is communicated with both the first heat dissipating section 521 and the second heat dissipating section 522. With this arrangement, the vaporized refrigerant can flow from the heat absorbing portion 51 of the heat pipe exchanger 5 through the connecting portion 53 and then enter the first heat dissipating section 521 and the second heat dissipating section 522 at the same time, and the vaporized refrigerant can reach the entire space inside the heat dissipating portion 52 of the heat pipe exchanger 5 at a relatively high speed, so that the bottom portion of the outdoor heat exchanger 2 and the drain groove 11 can obtain heat from the heat dissipating portion 52 of the heat pipe exchanger 5 at a relatively high speed.

Alternatively, the lengths of the first and second heat dissipating sections 521 and 522 may be set according to design requirements. For example, the length of the first heat dissipating section 521 shown in fig. 7 is smaller than that of the second heat dissipating section 522, and the heat absorbing part 51 is closer to the first heat dissipating section 521, so that the length of the connecting part 53 is ensured to be smaller, on one hand, the gasified refrigerant can be ensured to reach the heat dissipating part 52 more quickly, and on the other hand, the connecting part 53 is also ensured not to affect the layout of other components in the outdoor unit 100.

Other configurations and operations of the outdoor unit 100 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

It will be understood that the terms "length," "width," "upper," "lower," "horizontal," "bottom," "inner," "outer," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

In the description herein, references to the description of the term "some embodiments" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (11)

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

the indoor unit comprises a machine body, a water drainage tank is formed at the bottom in the machine body, an outdoor heat exchanger and a compressor are arranged in the machine body, and the outdoor heat exchanger is positioned above the water drainage tank;

a heat conductive member provided on an outer surface of the compressor;

the heat pipe heat exchanger comprises a heat absorption part and a heat dissipation part, the heat absorption part and the heat dissipation part are mutually communicated, the heat dissipation part is arranged between the outdoor heat exchanger and the drainage groove, and the heat absorption part is in contact with the heat conduction piece.

2. The outdoor unit of claim 1, wherein the heat radiating portion extends in an extending direction of a bottom of the outdoor heat exchanger.

3. The outdoor unit of claim 1, wherein at least one set of protrusions is provided in the drain groove, the set of protrusions including two protrusions spaced apart in a width direction of the heat dissipating part, and the heat dissipating part is supported on at least one of the two protrusions to space the heat dissipating part from the bottom wall of the drain groove.

4. The outdoor unit of claim 3, wherein the heat radiating part is supported at both sides in the width direction thereof on the two protrusions of the at least one protrusion set, respectively.

5. The outdoor unit of claim 3, wherein the portion of the heat dissipating part corresponding to the protrusion sets is provided with a support part having a width greater than that of the portion of the heat dissipating part other than the support part, and the heat dissipating part is supported on two protrusions of at least one of the protrusion sets by the support part.

6. The outdoor unit of claim 5, wherein the drain groove comprises at least one communication groove defined between the protrusions;

and a through hole is formed in the supporting part and is opposite to the communication groove.

7. The outdoor unit of claim 3, wherein the plurality of the projection sets are spaced apart from each other in the extending direction of the heat dissipating part.

8. The outdoor unit of any one of claims 1 to 7, wherein the heat transfer member includes a first heat transfer part provided at a bottom of the compressor and a second heat transfer part provided at an outer circumferential surface of the compressor, a lower end of the second heat transfer part being connected to the first heat transfer part,

the heat absorbing part is arranged on the lower surface of the first heat conducting part and is in close contact with the first heat conducting part.

9. The outdoor unit of claim 8, wherein the second heat transfer portion is a plurality of second heat transfer portions spaced apart from each other in a circumferential direction of the compressor.

10. The outdoor unit of any one of claims 1 to 7, wherein the heat radiating portion is not lower than the heat absorbing portion.

11. The outdoor unit of any one of claims 1 to 7, wherein a connection part is connected between the heat absorbing part and the heat dissipating part, and the connection part is covered with a heat insulating member.

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