Air conditioner outdoor unit and heat exchange unit thereof

Abstract

The utility model provides an air conditioner outdoor unit and a heat exchange unit thereof, the heat exchange unit comprises a water retaining device, a first heat exchanger and a second heat exchanger, and the second heat exchanger is arranged on the lower side of the first heat exchanger; the water retaining device is arranged between the first heat exchanger and the second heat exchanger and is configured to receive condensate water from the first heat exchanger and guide the condensate water to the outer side of the second heat exchanger. Condensate water condensed by the first heat exchanger of the outdoor unit of the air conditioner can be discharged in time by the water retaining device, the conditions of ice accumulation and ice climbing are not prone to occurring in the heat exchange unit, and the heat exchange efficiency of the heat exchange unit is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air conditioner, especially an air conditioner outdoor unit and a heat exchange unit thereof. BACKGROUND

[0002] The double-fan air conditioner outdoor unit in the related art comprises two heat exchangers arranged in sequence in the up-down direction, and the upper heat exchanger generates condensate water when it is running, which flows to the lower heat exchanger along the fins of the upper heat exchanger and is finally discharged by the water collecting groove on the bottom plate, and the drainage efficiency of the condensate water is low. Since there is a certain gap between the upper heat exchanger and the lower heat exchanger, the condensate water generated by the upper heat exchanger will not be discharged in time, and water will accumulate between the two heat exchangers, especially in cold weather, which will cause ice accumulation and ice climbing, thereby affecting the heat exchange efficiency of the heat exchanger. SUMMARY

[0003] In view of the above problems, the utility model is provided to overcome the above problems or at least partially solve the above problems.

[0004] The utility model aims to solve the problem that the condensate water generated by the upper heat exchanger of the air conditioner outdoor unit in the related art is not easy to discharge, which causes the upper heat exchanger and the lower heat exchanger to freeze, so as to improve the heat exchange efficiency of the heat exchanger.

[0005] Specifically, the utility model provides a heat exchange unit.

[0006] The heat exchange unit for the air conditioner comprises a first heat exchanger and a second heat exchanger, the second heat exchanger is arranged on the lower side of the first heat exchanger, a water retaining device is arranged between the first heat exchanger and the second heat exchanger, configured to receive condensate water from the first heat exchanger, and guide the condensate water to the outside of the second heat exchanger.

[0007] In some embodiments, the water retaining device comprises a water collecting part arranged on the lower side of the first heat exchanger, and a first flow guiding part extending along the length direction of the water collecting part, located on one side of the second heat exchanger and connected to the corresponding side of the water collecting part, the first flow guiding part is configured to receive condensate water from the upper surface of the water collecting part and guide the received condensate water to flow.

[0008] In some embodiments, the water retaining device further comprises a water retaining part extending along the length direction of the water collecting part, the water retaining part and the first flow guiding part are located on both sides of the water collecting part, and the water retaining part is located on one side of the first heat exchanger and connected to the corresponding side of the water collecting part.

[0009] In some embodiments, the upper surface of the water receiving portion is entirely a first slope, which receives the condensed water from the first heat exchanger and directs the condensed water to the lower end of the first slope, and the first flow guide portion is connected to the lower end of the first slope; or the upper surface of the water receiving portion comprises a second slope and a support surface, the second slope receives the condensed water from the first heat exchanger and directs the condensed water to the lower end of the second slope, and the first flow guide portion is connected to the lower end of the second slope; the support surface is in contact with the first heat exchanger; and the second slope and the support surface are alternately arranged along the length direction of the water receiving portion.

[0010] In some embodiments, the water blocking device further comprises a second flow guide portion extending along the length direction of the water receiving portion; the second flow guide portion is on the other side of the second heat exchanger and is connected to the corresponding side of the water receiving portion, and the second flow guide portion is configured to receive the condensed water from the upper surface of the water receiving portion and guide the received condensed water to flow.

[0011] In some embodiments, the upper surface of the water receiving portion comprises a second slope and a third slope; the second slope receives the condensed water from the first heat exchanger and directs the condensed water to the lower end of the second slope, and the first flow guide portion is connected to the lower end of the second slope; the third slope receives the condensed water from the first heat exchanger and directs the condensed water to the lower end of the third slope, and the second flow guide portion is connected to the lower end of the third slope; the second slope and the third slope are alternately arranged along the length direction of the water receiving portion; or the upper surface of the water receiving portion comprises a second slope, a support surface and a third slope; the second slope receives the condensed water from the first heat exchanger and directs the condensed water to the lower end of the second slope, and the first flow guide portion is connected to the lower end of the second slope; the third slope receives the condensed water from the first heat exchanger and directs the condensed water to the lower end of the third slope, and the second flow guide portion is connected to the lower end of the third slope; the support surface is in contact with the first heat exchanger; and the second slope, the support surface and the third slope are multiple, and each support surface is divided into the second slope and the third slope on both sides thereof.

[0012] In some embodiments, the first flow guide portion comprises a flow guide groove with an opening facing upward, which is configured to make the received condensed water flow out of the flow guide groove from one end or both ends thereof; the flow guide groove is arranged obliquely, one end of the flow guide groove is the lowest position of the flow guide groove, and the other end is the highest position of the flow guide groove; and the water blocking portion is a water blocking plate, and the water blocking portion is on the windward side of the first heat exchanger.

[0013] In some embodiments, the interval between the first heat exchanger and the second heat exchanger is within 50 mm; the thickness of the water receiving portion is below 50 mm, the height of the water blocking portion in the vertical direction is below 50 mm, and the height of the first flow guiding portion in the vertical direction is below 50 mm; the length of the water receiving portion is equal to the length of the water blocking portion, and the length of the water receiving portion is equal to the length of the first flow guiding portion; in the extension direction of the water receiving portion, the ratio of the length of the water receiving portion to the length of the first heat exchanger is 3 / 4 to 1.

[0014] In some embodiments, the water receiving portion is formed by punching or cutting a plate; or the water blocking device is formed by punching or cutting a plate; or the water blocking device is integrally injection molded.

[0015] The outdoor unit of the air conditioner according to the embodiments of the present application comprises: a bottom plate having a water receiving groove; the heat exchange unit according to any one of the above embodiments, wherein the second heat exchanger is arranged on the upper side of the bottom plate; and the water blocking device guides the condensed water to the upper side of the upper opening of the water receiving groove.

[0016] The heat exchange unit according to the embodiments of the present application is provided with the water blocking device between the first heat exchanger and the second heat exchanger, and the water blocking device can receive the condensed water at the bottom end of the first heat exchanger and guide the condensed water to the outer side of the second heat exchanger. When the condensed water flows to the lower end of the first heat exchanger, it is directly guided and received by the water blocking device, and the water blocking device also guides the condensed water to the outer side of the second heat exchanger, so that the condensed water can be timely and smoothly dripped into the water receiving groove, thereby avoiding the problems of ice accumulation and ice climbing on the first heat exchanger and the second heat exchanger, and thus improving the heat exchange efficiency of the heat exchange unit.

[0017] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] Some specific embodiments of the present application will be described in detail hereinafter with reference to the accompanying drawings, which are shown by way of illustration and not limitation. The same reference numbers in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0019] Figure 1 is a schematic structural view of an outdoor unit of an air conditioner according to an embodiment of the present application;

[0020] Figure 2 is a schematic structural view of an outdoor unit of an air conditioner according to an embodiment of the present application;

[0021] Figure 3This is a schematic structural diagram of the outdoor unit of an air conditioner according to an embodiment of the present utility model;

[0022] Figure 4 yes Figure 3 A magnified schematic diagram of the structure at point A in the middle;

[0023] Figure 5 This is a schematic structural diagram of a water-blocking device according to an embodiment of the present utility model;

[0024] Figure 6 yes Figure 5 A magnified schematic diagram of the structure at point B in the middle;

[0025] Figure 7 This is a schematic structural diagram of a water-blocking device according to another embodiment of the present invention;

[0026] Figure 8 This is a schematic structural diagram of a water-blocking device according to another embodiment of the present utility model.

[0027] Figure label:

[0028] Air conditioner outdoor unit 10; first heat exchanger 100; second heat exchanger 200; water baffle 300; water receiving part 310; support surface 312; second inclined surface 313; third inclined surface 314; first guide part 320; guide groove 321; water baffle 330; water baffle plate 331; second guide part 340; chassis 400; water receiving trough 410. Detailed Implementation

[0029] The following reference Figures 1 to 8 This description pertains to an outdoor unit of an air conditioner and its heat exchange unit according to embodiments of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0030] Unless otherwise defined, the terms "set", "mounted", "connected", "connected", "fixed", "coupled" and the like are to be construed in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly defined. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0031] In addition, in the description of the present embodiment, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. That is, in the description of the present embodiment, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" or "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0032] In the description of the present embodiment, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0033] The air conditioner outdoor unit 10 of the present embodiment will be described below with reference to the accompanying drawings.

[0034] As shown in Figures 1-3 The air conditioner outdoor unit 10 of the present embodiment is installed in an outdoor area, and the air conditioner outdoor unit 10 is connected to an air conditioner indoor unit (not shown in the figure) through a pipeline. The air conditioner outdoor unit 10 can refrigerate or heat the refrigerant therein by heat exchange between the refrigerant and outdoor air, and transport the refrigerant to the air conditioner indoor unit through the pipeline to heat exchange between the refrigerated or heated refrigerant and indoor air, so as to achieve the effect of cooling or heating the indoor air.

[0035] The indoor unit of the air conditioner includes a chassis 400 and a heat exchange unit, which is located on the upper side of the chassis 400. The chassis 400 has a water collection tray 410. When the heat exchange unit exchanges heat with the outdoor air, condensate will condense on its surface. After the condensate accumulates, it will drip down the heat exchange unit into the water collection tray 410, so that the condensate can be discharged from the outdoor unit 10 of the air conditioner through the water collection tray 410.

[0036] The heat exchange unit of an embodiment of the present invention will now be described with reference to the accompanying drawings.

[0037] like Figures 1-3 As shown, and refer to Figures 4-6 This utility model provides a heat exchange unit.

[0038] The heat exchange unit of this embodiment includes a first heat exchanger 100, a second heat exchanger 200, and a water-blocking device 300. The second heat exchanger 200 is disposed below the first heat exchanger 100. The second heat exchanger 200 is disposed above the chassis 400. The water-blocking device 300 guides condensate to the upper side of the upper opening of the water collection tank 410. When the first heat exchanger 100 and the second heat exchanger 200 exchange heat with the outdoor air, condensate will condense on the surfaces of the first heat exchanger 100 and the second heat exchanger 200. The condensate will drip downwards into the water collection tank 410 so that the condensate can be discharged from the outdoor unit 10 of the air conditioner through the water collection tank 410.

[0039] A water-blocking device 300 is disposed between the first heat exchanger 100 and the second heat exchanger 200. The water-blocking device 300 is configured to receive condensate from the first heat exchanger 100 and guide the condensate to the outside of the second heat exchanger 200. That is, after the first heat exchanger 100 exchanges heat with the outdoor air, the condensate condensed on its outer surface will flow downwards to its lower end. When the condensate flows to the lower end of the first heat exchanger 100, it is directly guided and collected by the water-blocking device 300, and the water-blocking device 300 also guides the condensate to the outside of the second heat exchanger 200 so that the condensate can drip smoothly into the water receiving tank 410.

[0040] In related technologies, the outdoor unit of an air conditioner condenses water after heat exchange with the outdoor air on its upper heat exchanger, and this condensate flows to the lower end of the upper heat exchanger. Understandably, the water droplets formed at the lower end of the upper heat exchanger need to accumulate a certain weight before being subject to gravity to drip down. This results in the water droplets at the lower end of the upper heat exchanger taking a certain amount of time to drip. In low-temperature outdoor conditions, this can easily cause ice buildup between the upper and lower heat exchangers of the outdoor unit, leading to a reduction in heat exchange efficiency.

[0041] Compared with the related art, the heat exchange unit has the water blocking device 300 arranged between the first heat exchanger 100 and the second heat exchanger 200, the water blocking device 300 can receive the condensed water at the bottom end of the first heat exchanger 100, and guide the condensed water to the outside of the second heat exchanger 200. When the condensed water flows to the bottom end of the first heat exchanger 100, the condensed water is directly guided and received by the water blocking device 300, and the water blocking device 300 also guides the condensed water to the outside of the second heat exchanger 200, so that the condensed water can be timely and smoothly dropped into the water collecting groove 410, thereby avoiding the problems of ice accumulation and ice climbing on the first heat exchanger 100 and the second heat exchanger 200, and thus improving the heat exchange efficiency of the heat exchange unit.

[0042] In some embodiments, as shown in Figures 4-6 The water blocking device 300 includes a water collecting portion 310 and a first flow guiding portion 320. The water collecting portion 310 is arranged on the lower side of the first heat exchanger 100, the first flow guiding portion 320 extends along the length direction of the water collecting portion 310, the first flow guiding portion 320 is located on one side of the second heat exchanger 200, and the first flow guiding portion 320 is connected to the corresponding side of the water collecting portion 310. That is, the first flow guiding portion 320 is located on the outside of the second heat exchanger 200, and the first flow guiding portion 320 is connected to the outside of the water collecting portion 310; or, the first flow guiding portion 320 is located on the inside of the second heat exchanger 200, and the first flow guiding portion 320 is connected to the inside of the water collecting portion 310. The first flow guiding portion 320 is configured to receive the condensed water from the upper surface of the water collecting portion 310 and guide the received condensed water to flow.

[0043] At least part of the upper surface of the water collecting portion 310 can be directly in contact with the lower side of the first heat exchanger 100, or at least part of the upper surface of the water collecting portion 310 can also be spaced apart from the lower side of the first heat exchanger 100 by a small distance, for example, 3mm or 5mm. It can be understood that, when the condensed water is at the bottom end of the first heat exchanger 100, the condensed water cannot be dropped from the first heat exchanger 100 due to its surface tension and adhesion. The water collecting portion 310 is in contact with the condensed water, so that the condensed water droplets at the bottom end of the first heat exchanger 100 are smoothly separated from the bottom end of the first heat exchanger 100. After the condensed water is guided by the water collecting portion 310 and flows into the first flow guiding portion 320, the condensed water flows along the first flow guiding portion 320 and finally drops downward through the outlet end of the first flow guiding portion 320 into the water collecting groove 410, so that the condensed water is discharged from the air conditioner outdoor unit 10 through the water collecting groove 410.

[0044] In some embodiments, as shown in Figure 4As shown, the water blocking device 300 further comprises a water blocking portion 330 extending along the length direction of the water receiving portion 310, the water blocking portion 330 and the first flow guiding portion 320 are located at two sides of the water receiving portion 310, and the water blocking portion 330 is located at one side of the first heat exchanger 100 and connected to the corresponding side of the water receiving portion 310. That is, the first flow guiding portion 320 is located at the outer side of the second heat exchanger 200, the water blocking portion 330 is located at the inner side of the second heat exchanger 200, the first flow guiding portion 320 is connected to the outer side of the water receiving portion 310, and the water blocking portion 330 is connected to the inner side of the water receiving portion 310; or, the first flow guiding portion 320 is located at the inner side of the second heat exchanger 200, the water blocking portion 330 is located at the outer side of the second heat exchanger 200, the first flow guiding portion 320 is connected to the inner side of the water receiving portion 310, and the water blocking portion 330 is connected to the outer side of the water receiving portion 310. Thus, the water blocking portion 330 is used to block the condensed water from flowing out from one side of the first heat exchanger 100, so as to prevent the condensed water from leaking.

[0045] In some embodiments, as shown in FIG. 1, the water blocking device 300 comprises a first flow guiding portion 320 and a water receiving portion 310, the first flow guiding portion 320 is located at the outer side of the second heat exchanger 200, and the water receiving portion 310 is located at the inner side of the second heat exchanger 200. Figures 4-6 As shown, the first flow guiding portion 320 comprises a flow guiding groove 321 with an opening facing upward, which is configured to guide the condensed water received thereby to flow out from one end or both ends of the flow guiding groove 321, the flow guiding groove 321 is arranged in an inclined manner, one end of the flow guiding groove 321 is the lowest position of the flow guiding groove 321, and the other end of the flow guiding groove 321 is the highest position of the flow guiding groove 321. The water blocking portion 330 is a water blocking plate 331, and the water blocking portion 330 is located at the windward side of the first heat exchanger 100. Thus, the water blocking device 300 can not only directly collect the condensed water into the flow guiding groove 321, but also guide the condensed water to the outer side of the second heat exchanger 200 through the flow guiding groove 321, so that the condensed water can be timely and smoothly dripped into the water receiving groove 410, thereby avoiding the problems of ice accumulation and ice climbing on the first heat exchanger 100 and the second heat exchanger 200, and thus improving the heat exchange efficiency of the heat exchange unit.

[0046] Specifically, the first heat exchanger 100 and the second heat exchanger 200 each comprise two segments with a certain included angle on a horizontal plane, and the flow guiding groove 321, the water blocking portion 330 and the water receiving portion 310 also comprise two segments adapted to the structure of the first heat exchanger 100 and the second heat exchanger 200.

[0047] In some embodiments, the interval between the first heat exchanger 100 and the second heat exchanger 200 is within 50 mm, and the thickness of the water receiving portion 310 is less than 50 mm. That is, the thickness of the water receiving portion 310 is less than the interval between the first heat exchanger 100 and the second heat exchanger 200, and the interval between the first heat exchanger 100 and the second heat exchanger 200 is small, thereby avoiding a large gap between the first heat exchanger 100 and the second heat exchanger 200, and the condensed water is blown out of the air conditioner outdoor unit 10 by the airflow. Moreover, the thickness of the water receiving portion 310 is small in size, thereby reducing the manufacturing cost of the water blocking device 300 of the present embodiment.

[0048] The interval between the first heat exchanger 100 and the second heat exchanger 200 includes but is not limited to 25 mm, 40 mm or 50 mm. The thickness of the water receiving portion 310 includes but is not limited to 25 mm, 40 mm or 45 mm.

[0049] Further, the height of the water blocking portion 330 in the vertical direction is less than 50 mm, and the height of the first flow guiding portion 320 in the vertical direction is less than 50 mm. The thickness of the water blocking portion 330 and the first flow guiding portion 320 is small, which reduces the manufacturing cost of the water blocking device 300.

[0050] The thickness of the water blocking portion 330 includes but is not limited to 15 mm, 25 mm or 45 mm. The thickness of the first flow guiding portion 320 includes but is not limited to 15 mm, 25 mm or 45 mm.

[0051] In some embodiments, as shown in Figures 3-6 The length of the water receiving portion 310 is equal to the length of the water blocking portion 330, and the length of the water receiving portion 310 is equal to the length of the first flow guiding portion 320. Thus, the condensed water collected by each part of the water receiving portion 310 can flow into the corresponding first flow guiding portion 320, thereby ensuring that the condensed water can be discharged to the outside of the second heat exchanger 200 through the first flow guiding portion 320.

[0052] In some embodiments, as shown in Figures 3-6 In the extension direction of the water receiving portion 310, the length of the water receiving portion 310 is 3 / 4 to 1 times the length of the first heat exchanger 100. Thus, when the condensed water drops from each part of the lower end of the first heat exchanger 100, most of the condensed water can be collected by the water receiving portion 310.

[0053] In some embodiments, as shown in Figure 5 The water receiving portion 310 is formed by punching or cutting a plate, so that the water receiving portion 310 has a simple structure and is an integral whole, and additional assembly of the water receiving portion 310 is not required during assembly, thereby improving the assembly efficiency of the heat exchange unit.

[0054] In some embodiments, as shown in Figure 5 The water blocking device 300 is formed by punching or cutting a plate, so that the water blocking device 300 has a simple structure and is an integral whole, and additional assembly of the water blocking device 300 is not required during assembly, thereby further improving the assembly efficiency of the heat exchange unit.

[0055] Preferably, the water blocking device 300 is integrally injection molded.

[0056] In some embodiments, as shown in Figures 3-6As shown, the upper surface of the water receiving portion 310 is entirely a first inclined surface, which receives the condensed water from the first heat exchanger 100 and guides the condensed water to the lower end of the first inclined surface, and the first flow guide portion 320 is connected to the lower end of the first inclined surface. After the condensed water is received by the water receiving portion 310, the first inclined surface is inclined downward, which enables the condensed water to flow more smoothly into the first flow guide portion 320, thereby further improving the drainage efficiency of the water blocking device 300 of the present embodiment.

[0057] In some embodiments, as shown in FIG. 1, the water receiving portion 310 is disposed on the first heat exchanger 100, and the first flow guide portion 320 is disposed on the second heat exchanger 200. Figures 3-6 As shown, the upper surface of the water receiving portion 310 includes a second inclined surface 313 and a support surface 312, the second inclined surface 313 receives the condensed water from the first heat exchanger 100 and guides the condensed water to the lower end of the second inclined surface 313, and the first flow guide portion 320 is connected to the lower end of the second inclined surface 313. The support surface 312 is in contact with the first heat exchanger 100, and the second inclined surface 313 and the support surface 312 are multiple, and the multiple second inclined surfaces 313 and the multiple support surfaces 312 are alternately arranged along the length direction of the water receiving portion 310. Thus, not only can the second inclined surface 313 of the water blocking device 300 enable the condensed water to flow more smoothly into the first flow guide portion 320, thereby further improving the drainage efficiency of the water blocking device 300 of the present embodiment, but also can support the first heat exchanger 100.

[0058] In some embodiments, as shown in FIG. 1, the water receiving portion 310 is disposed on the first heat exchanger 100, and the first flow guide portion 320 is disposed on the second heat exchanger 200. Figures 7-8 As shown, the first flow guide portion 320 is disposed on one side of the second heat exchanger 200, and the water blocking device 300 further includes a second flow guide portion 340 extending along the length direction of the water receiving portion 310. The second flow guide portion 340 is disposed on the other side of the second heat exchanger 200 and connected to the corresponding side of the water receiving portion 310, and the second flow guide portion 340 is configured to receive the condensed water from the upper surface of the water receiving portion 310 and guide the received condensed water to flow. That is, the first flow guide portion 320 and the second flow guide portion 340 are respectively disposed on the two sides of the water receiving portion 310, so that the condensed water received by the water receiving portion 310 can flow out of the first flow guide portion 320 and the second flow guide portion 340. When the condensed water condensed on the first heat exchanger 100 is more, the condensed water can be smoothly drained through the first flow guide portion 320 and the second flow guide portion 340.

[0059] In some embodiments, as shown in FIG. 1, the water receiving portion 310 is disposed on the first heat exchanger 100, and the first flow guide portion 320 is disposed on the second heat exchanger 200. Figure 7As shown, the upper surface of the water receiving part 310 comprises a second inclined surface 313 and a third inclined surface 314; the second inclined surface 313 receives the condensed water from the first heat exchanger 100 and guides the condensed water to the lower end of the second inclined surface 313, and the first flow guide part 320 is connected to the lower end of the second inclined surface 313. The third inclined surface 314 receives the condensed water from the first heat exchanger 100 and guides the condensed water to the lower end of the third inclined surface 314, and the second flow guide part 340 is connected to the lower end of the third inclined surface 314. The second inclined surface 313 and the third inclined surface 314 are multiple and are alternately arranged along the length direction of the water receiving part 310. When the condensed water condensed on the first heat exchanger 100 is more, the condensed water can flow into the first flow guide part 320 and the second flow guide part 340 respectively by the second inclined surface 313 and the third inclined surface 314 respectively, so that the condensed water can be smoothly discharged through the first flow guide part 320 and the second flow guide part 340.

[0060] In other embodiments, as Figure 8 As shown, the upper surface of the water receiving part 310 comprises a second inclined surface 313, a supporting surface 312 and a third inclined surface 314. The second inclined surface 313 receives the condensed water from the first heat exchanger 100 and guides the condensed water to the lower end of the second inclined surface 313, and the first flow guide part 320 is connected to the lower end of the second inclined surface 313. The third inclined surface 314 receives the condensed water from the first heat exchanger 100 and guides the condensed water to the lower end of the third inclined surface 314, and the second flow guide part 340 is connected to the lower end of the third inclined surface 314. The supporting surface 312 is in contact with the first heat exchanger 100, and the second inclined surface 313, the supporting surface 312 and the third inclined surface 314 are multiple, and each supporting surface 312 is divided into the second inclined surface 313 and the third inclined surface 314 on both sides. Thus, not only the second inclined surface 313 and the third inclined surface 314 guide the condensed water to the first flow guide part 320 and the second flow guide part 340 respectively, so that the condensed water can be smoothly discharged through the first flow guide part 320 and the second flow guide part 340. Moreover, the water receiving part 310 can also support the first heat exchanger 100, so that the first heat exchanger 100 is installed more stably.

[0061] At this point, those skilled in the art should recognize that although the present application has been shown and described in detail a plurality of exemplary embodiments, many other variations or modifications can be directly determined or deduced according to the disclosure of the present application without departing from the spirit and scope of the present application, which conform to the principles of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variations or modifications.

Claims

1. A heat exchange unit, characterized by, The heat exchange unit comprises: a first heat exchanger and a second heat exchanger, the second heat exchanger being arranged on the lower side of the first heat exchanger; a water blocking device arranged between the first heat exchanger and the second heat exchanger, configured to receive condensed water from the first heat exchanger and guide the condensed water to the outside of the second heat exchanger.

2. The heat exchange unit of claim 1, wherein, The water blocking device comprises: a water receiving portion arranged on the lower side of the first heat exchanger; a first water guiding portion extending along the length direction of the water receiving portion, arranged on one side of the second heat exchanger and connected to the corresponding side of the water receiving portion, the first water guiding portion being configured to receive condensed water from the upper surface of the water receiving portion and guide the received condensed water to flow.

3. The heat exchange unit according to claim 2, wherein the water blocking device further comprises a water blocking portion extending along the length direction of the water receiving portion, the water blocking portion and the first water guiding portion being arranged on both sides of the water receiving portion, and the water blocking portion being arranged on one side of the first heat exchanger and connected to the corresponding side of the water receiving portion.

4. The heat exchange unit according to claim 2, wherein the upper surface of the water receiving portion is entirely a first inclined surface, configured to receive condensed water from the first heat exchanger and guide the condensed water to the lower end of the first inclined surface, and the first water guiding portion is connected to the lower end of the first inclined surface; or the upper surface of the water receiving portion comprises a second inclined surface and a supporting surface, the second inclined surface being configured to receive condensed water from the first heat exchanger and guide the condensed water to the lower end of the second inclined surface, and the first water guiding portion being connected to the lower end of the second inclined surface; the supporting surface is in contact with the first heat exchanger; and the second inclined surface and the supporting surface are multiple, arranged alternately along the length direction of the water receiving portion.

5. The heat exchange unit according to claim 2, wherein the water blocking device further comprises a second water guiding portion extending along the length direction of the water receiving portion; the second water guiding portion is arranged on the other side of the second heat exchanger and connected to the corresponding side of the water receiving portion, and the second water guiding portion is configured to receive condensed water from the upper surface of the water receiving portion and guide the received condensed water to flow.

6. The heat exchange unit according to claim 5, wherein the upper surface of the water receiving portion comprises a second inclined surface and a third inclined surface; the second inclined surface is configured to receive condensed water from the first heat exchanger and guide the condensed water to the lower end of the second inclined surface, and the first water guiding portion is connected to the lower end of the second inclined surface; the third inclined surface is configured to receive condensed water from the first heat exchanger and guide the condensed water to the lower end of the third inclined surface, and the second water guiding portion is connected to the lower end of the third inclined surface; and the second inclined surface and the third inclined surface are multiple, arranged alternately along the length direction of the water receiving portion; or The upper surface of the water receiving part comprises a second slope, a supporting surface and a third slope; the second slope receives the condensed water from the first heat exchanger and guides the condensed water to the lower end of the second slope, the first flow guide part is connected to the lower end of the second slope; the third slope receives the condensed water from the first heat exchanger and guides the condensed water to the lower end of the third slope, the second flow guide part is connected to the lower end of the third slope; the supporting surface is in contact with the first heat exchanger; the second slope, the supporting surface and the third slope are multiple, and each supporting surface is divided into the second slope and the third slope on both sides.

7. The heat exchange unit according to claim 3, wherein, The first flow guide part comprises a flow guide groove with an opening facing upward, which is configured to guide the condensed water received thereby to flow out of the flow guide groove from one end or both ends thereof; the flow guide groove is arranged to be inclined, one end of the flow guide groove being the lowest position of the flow guide groove and the other end being the highest position of the flow guide groove; The water blocking part is a water blocking plate, and the water blocking part is located on the windward side of the first heat exchanger.

8. The heat exchange unit according to claim 3, wherein, The interval between the first heat exchanger and the second heat exchanger is within 50 mm; the thickness of the water receiving part is less than 50 mm, the height of the water blocking part in the vertical direction is less than 50 mm, and the height of the first flow guide part in the vertical direction is less than 50 mm; The length of the water receiving part is equal to the length of the water blocking part, and the length of the water receiving part is equal to the length of the first flow guide part; In the extension direction of the water receiving part, the length of the water receiving part is 3 / 4 to 1 times the length of the first heat exchanger.

9. The heat exchange unit according to claim 4, wherein, The water receiving part is formed by punching or cutting a plate; or the water blocking device is formed by punching or cutting a plate; or the water blocking device is integrally injection molded.

10. An air conditioner outdoor unit characterized by comprising: Comprise: A bottom plate having a water receiving groove on the bottom plate; The heat exchange unit according to any one of claims 1 to 9, wherein the second heat exchanger is arranged on the upper side of the bottom plate; The water blocking device guides the condensed water to the upper side of the upper opening of the water receiving groove.

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