Window air conditioner

Abstract

The present invention discloses a window air conditioner, which includes a chassis, an outdoor-side air wheel, a rear enclosure, and an outdoor-side heat exchanger. The upper surface of the chassis has a water collecting trough, and a water splashing ring is provided on the outer periphery of the outdoor-side air wheel for lifting the condensed water in the water collecting trough. The rear enclosure is arranged on the chassis and is arranged to jointly enclose the outer periphery of the outdoor-side air wheel with the chassis to form an air duct extending in the front-rear direction. Among them, the top plate of the rear enclosure extends backward above the heat exchanger, and the rear end of the top plate of the rear enclosure is directly above the refrigerant pipe. When the outdoor-side air wheel operates, the water splashing ring throws the water in the water collecting trough backward to the rear enclosure, and the water flows backward along the rear enclosure and drips onto the refrigerant pipe. In this way, the lifted condensed water can directly sprinkle onto the refrigerant pipe from above and can directly take away heat. Compared with the technology in which the condensed water is sprinkled onto the fins and then conducts heat to the refrigerant pipe indirectly, the heat exchange effect is better.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly relates to a window air conditioner. Background Art

[0002] In the existing window air conditioner, a condensate guiding device is usually arranged in the outdoor air duct to lift the condensate water accumulated on the chassis of the window air conditioner and guide it to the outdoor heat exchanger, and the condensate water is used to cool the outdoor heat exchanger for heat exchange. This method improves the heat exchange efficiency of the outdoor heat exchanger and has the advantages of environmental protection and energy saving. However, in the existing condensate guiding device, the condensate water is usually sprayed onto the outdoor heat exchanger from the side. Most of the condensate water first contacts the fins, cools the fins, and then conducts heat through the fins to cool the refrigerant pipes, resulting in poor heat exchange effect. Summary of the Invention

[0003] In order to solve the above technical problems, the main object of the present invention is to provide a window air conditioner, aiming to solve the technical problem of poor heat exchange effect when the existing window air conditioner uses condensate water for heat exchange.

[0004] The present utility model provides a window air conditioner, including:

[0005] A chassis, the upper surface of which has a water collecting trough;

[0006] An outdoor air wheel, installed on the chassis and corresponding to the upper part of the water collecting trough. A water splashing ring is arranged on the outer circumference of the outdoor air wheel, and the lower end of the water splashing ring extends into the water collecting trough;

[0007] A rear enclosure plate, arranged on the chassis. The rear enclosure plate and the chassis are arranged to jointly enclose the outer circumference of the outdoor air wheel to form an air duct extending in the front-rear direction, and an air outlet is formed at the rear end of the air duct;

[0008] An outdoor heat exchanger, installed on the chassis and arranged at the air outlet of the air duct. The outdoor heat exchanger includes fins and refrigerant pipes installed on the fins;

[0009] Wherein, the top plate of the rear enclosure plate extends backward above the heat exchanger, and the rear end of the top plate of the rear enclosure plate is directly above the refrigerant pipe. When the outdoor air wheel operates, the water splashing ring throws the water in the water collecting trough towards the rear enclosure plate, and the water flows backward along the rear enclosure plate and drips onto the refrigerant pipe.

[0010] In one embodiment, a first groove extending in the front-rear direction is arranged on the lower side of the top plate. The opening of the first groove faces downward. The front end of the first groove is above the water splashing ring, and the rear end of the first groove is above the refrigerant pipe.

[0011] In one embodiment, a water baffle is provided at the rear end of the first groove. The water baffle extends downward from the bottom of the first groove to cover the opening of the first groove facing the rear side.

[0012] In one embodiment, the water baffle is pivotally connected to the top plate so as to have a connection side connected to the rear end of the top plate and a rotation side that rotates around the connection side.

[0013] In one embodiment, the water baffle and the top plate are integrally provided, and the connection side of the water baffle has a folding groove extending in the transverse direction. The thickness of the plate at the folding groove is smaller than the thickness of the plates on both sides of the folding groove, so that the water baffle is foldably rotatably connected to the top plate.

[0014] In one embodiment, a buckle is provided on the water baffle, a clamping groove corresponding to the buckle is provided on the top plate, the buckle has a guiding inclined surface corresponding to the clamping groove, and is clamped in the clamping groove.

[0015] In one embodiment, the vertical distance between the bottom surface of the first groove and the outer edge of the water spraying ring is not less than 10 mm and not more than 50 mm.

[0016] In one embodiment, both sides of the chassis respectively have a first edge and a second edge extending in the front-rear direction. The span of the first groove in the direction from the first edge towards the second edge is not less than 60 mm and not more than 250 mm.

[0017] In one embodiment, the cross-section of the first groove is gradually expanding from top to bottom.

[0018] In one embodiment, a second groove is further provided on the lower side of the top plate. The second groove is provided on at least one side of the first groove. The opening of the second groove faces downward, and the rear end of the second groove is located above the refrigerant pipe.

[0019] In one embodiment, the window air conditioner further includes a housing. The upper wall of the housing is provided on the upper side of the top plate. A sponge rubber is pasted on the lower side of the upper wall, and the sponge rubber covers the opening of the second groove facing the rear side.

[0020] In one embodiment, the front end of the rear enclosure has a front side plate, an air inlet is formed on the front side plate, and a wind collecting ring extending backward from the front side plate is provided at the air inlet.

[0021] In one embodiment, the connection between the wind collecting ring and the front side plate is arc-shaped.

[0022] In one embodiment, the top end of the wind collecting ring is provided below the top plate to form a water guide groove with an opening facing backward between the top plate and the wind collecting ring.

[0023] In one embodiment, the bottom surface of the first groove is inclined downward forward from the upper direction of the water spraying ring.

[0024] In the technical solution provided by the present invention, when the outdoor side wind wheel operates, the water spraying ring throws the water in the water collecting tank to the rear enclosure panel, and the water flows backward along the rear enclosure panel and drips onto the refrigerant pipe. In this way, the lifted condensed water can directly sprinkle onto the refrigerant pipe from above. Compared with the technology in which the condensed water is sprinkled on the fins and then conducts heat to the refrigerant pipe indirectly, the condensed water directly contacts the refrigerant pipe to take away heat, with higher heat exchange efficiency and better cooling effect on the refrigerant pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0026] Figure 1 It is a three-dimensional structure schematic diagram of the internal components of an embodiment of a window air conditioner provided by the present invention;

[0027] Figure 2 It is Figure 1 a cross-sectional view of the window air conditioner;

[0028] Figure 3 It is Figure 2 a partially enlarged schematic diagram of the window air conditioner;

[0029] Figure 4 It is Figure 2 a first flow direction schematic diagram of the condensed water of the window air conditioner;

[0030] Figure 5 It is Figure 1 a second flow direction schematic diagram of the condensed water of the window air conditioner;

[0031] Figure 6 It is Figure 1 another second flow direction schematic diagram of the condensed water of the window air conditioner;

[0032] Figure 7 It is Figure 1 a three-dimensional structure schematic diagram of the outdoor heat exchange side components of the window air conditioner;

[0033] Figure 8 It is Figure 7 a three-dimensional structure schematic diagram of another perspective of the outdoor side components;

[0034] Figure 9 It isFigure 7 Schematic diagram of the internal structure of the middle wind wheel and the rear enclosure panel;

[0035] Figure 10 For Figure 9 Partial enlarged schematic diagram of the middle and rear enclosure panel;

[0036] Figure 11 For Figure 8 Enlarged schematic diagram at position A in the middle;

[0037] Figure 12 For Figure 11 Top view schematic diagram of the water baffle in the open state in ;

[0038] Figure 13 For Figure 11 Top view schematic diagram of the water baffle in the closed state in ;

[0039] Figure 14 For Figure 13 Enlarged schematic diagram at position B in .

[0040] Explanation of the reference numerals in the drawings:

[0041] Label Name Label Name 10 Chassis 40 Outdoor side heat exchanger 11 Water collecting tank 50 First groove 12 First edge 51 Water baffle 13 Second edge 511 Connection side 20 Outdoor side wind wheel 512 Rotating side 21 Water spraying ring 513 Folding groove 30 Rear panel 514 Snap fastener 31 Top plate 515 Card slot 32 Front side plate 5140 Guiding inclined plane 33 Air collecting ring 52 Bottom surface 330 Water guiding groove 60 Second groove 70 Sponge rubber

[0042] For the realization of the object of the present invention, its functional features and excellent effects, further explanations will be given below in conjunction with specific embodiments and the accompanying drawings. Specific embodiments

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] It should be noted that if there are directional indications involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0045] In addition, if the embodiments of the present invention involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text includes three parallel scenarios. Taking "A and / or B" as an example, it includes Scenario A, or Scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0046] The present invention provides a window air conditioner. Please refer to Figure 1 and Figure 2 , the window air conditioner provided by the present invention includes a chassis 10, and an indoor heat exchange component and an outdoor heat exchange component disposed on the chassis 10. The outdoor heat exchange component includes an outdoor heat exchanger 40, an outdoor air wheel 20, and a rear enclosure 30. When the window air conditioner operates, the outdoor air wheel 20 rotates to send air to the outdoor heat exchanger 40 to achieve heat exchange.

[0047] The upper surface of the chassis 10 has a water collecting trough 11. Specifically, the water collecting trough 11 may be formed by a partial depression on the upper surface of the chassis 10 or may be formed by a partial flanging and enclosing on the upper surface of the chassis 10. The water collecting trough 11 is used to gather the condensed water condensed on the surface of the indoor heat exchanger. When the indoor unit of the air conditioner operates, the condensed water drips downward under the action of gravity, is received by the chassis 10, and is collected and stored in the water collecting trough 11. The outdoor air wheel 20 is installed on the chassis 10 and is correspondingly installed above the water collecting trough 11. A water splashing ring 21 is provided on the outer periphery of the outdoor air wheel 20, and the lower end of the water splashing ring 21 extends into the water collecting trough 11. Thus, when the outdoor air wheel 20 rotates, the water splashing ring 21 rotates accordingly and drives the condensed water in the water collecting trough 11 to rise. The rear enclosure 30 is disposed on the chassis 10. Please refer to Figure 1The rear panel 30 and the chassis 10 are arranged to be enclosed together on the outer periphery of the outdoor wind wheel 20 to form an air duct extending in the front-to-back direction. In this embodiment, the air duct is arranged in a cylindrical shape extending in the front-to-back direction. An air outlet is formed at the rear end of the air duct, and an air inlet is formed at the front end of the air duct. The outdoor heat exchanger 40 is installed on the chassis 10 and is arranged at the air outlet of the air duct, so that when the outdoor wind wheel 20 rotates, the air flow is driven to flow out from the air outlet from the front to the back and blow toward the outdoor heat exchanger 40 to achieve heat exchange. Specifically, the outdoor heat exchanger 40 includes fins and refrigerant pipes installed on the fins. Among them, the top plate 31 of the rear panel 30 extends backward to above the heat exchanger, and the rear end of the top plate 31 of the rear panel 30 is located directly above the refrigerant pipe, so that when the outdoor wind wheel 20 is running, the water ring 21 throws the water in the water collection tank 11 toward the rear panel 30, and flows backward along the rear panel 30 and drips onto the refrigerant pipe.

[0048] In the technical solution provided by the present invention, when the window air conditioner is working, the flow direction of the condensed water is as follows: Figure 4 As shown, it flows in the direction of ABCD. Specifically, when the outdoor wind wheel 20 is running, the water ring 21 throws the water in the water collecting tank 11 (A) upward to the top plate 31 (B) of the rear panel 30 above the water ring 21. After that, under the action of the wind pressure in the air duct, the water flows backward along the rear panel 30 to the top plate 31 (C) above the refrigerant pipe, and finally drips to the refrigerant pipe (D) below the top plate 31 under the action of gravity. In this way, the raised condensed water can be directly sprinkled on the refrigerant pipe from above. Compared with the technology in which the condensed water is sprinkled on the fins and then indirectly conducts heat to the refrigerant pipe, the condensed water directly contacts the refrigerant pipe to take away the heat, the heat exchange efficiency is higher, and the cooling effect on the refrigerant pipe is better.

[0049] Those skilled in the art can understand that, among them, the top plate 31 of the rear panel 30 has a certain distance from the refrigerant pipe in the vertical direction, specifically, this distance is not less than 10mm, so that most of the condensed water can be directly poured down from the top of the refrigerant pipe without being blocked. However, if the height of the top plate 31 is raised as a whole in order to ensure the spacing between the top plate 31 and the refrigerant pipe, it may cause the air duct section to be too large, and the static pressure in the air duct cannot be guaranteed. For this reason, the lower side of the top plate 31 is provided with a first groove 50 extending in the front-to-back direction, the opening of the first groove 50 is downward, the front end of the first groove 50 is located above the water ring 21, and the rear end of the first groove 50 is located above the refrigerant pipe. In this way, the first groove 50 corresponding to the top of the refrigerant pipe is only set at the position where the condensed water needs to be sprayed. On the one hand, only the height of the air duct section is partially increased, which can reduce the wind pressure change caused by the increase in the air duct section. On the other hand, the first groove 50 can also play a role in collecting and guiding the condensed water, so that the condensed water can be sprayed onto the refrigerant pipe more smoothly. Preferably, the first groove 50 is arranged corresponding to the position of the refrigerant pipe, so that more condensed water is directed to the refrigerant pipe that needs heat dissipation the most, further improving the heat exchange efficiency.

[0050] , based on the previous embodiment, please refer to Figure 2 , Figure 3 and Figure 8 A water baffle 51 is provided at the rear end of the first groove 50. The water baffle 51 extends downward from the bottom of the first groove 50 to cover the rear opening of the first groove 50. In this way, the water baffle 51 can guide the condensed water flowing in the front-to-back direction to the refrigerant pipe below the water baffle 51, so that more condensed water directly contacts the refrigerant pipe for heat exchange, further improving the heat exchange efficiency.

[0051] For details, please refer to Figure 8 and Figures 11 to 14 The water baffle plate 51 can be connected to the top plate 31 in an upside-down manner, so as to have a connection side 511 connected to the rear end of the top plate 31, and a rotation side 512 rotating around the connection side 511. Figure 12 When the rotating side 512 rotates upward around the connecting side 511 to the position where the water baffle 51 and the top plate 31 are coplanar, the water baffle 51 is in an open state. Figure 13As shown, when the rotating side 512 rotates downward to a position perpendicular to the top plate 31, the water baffle 51 is in a closed state. In this way, on the one hand, when assembling the rear enclosure 30, the rear enclosure 30 can be first installed in place, and then the water baffle 51 can be closed to facilitate installation. On the other hand, during the assembly and maintenance of the window air conditioner, when the water baffle 51 is in an open state, it is convenient for the construction personnel to look forward from the first groove 50 towards the opening at the rear side to observe whether the position of the rear enclosure 30 and the outdoor side air wheel 20 it covers corresponds, so as to ensure the relative position between the top plate 31 of the rear enclosure 30 and the outdoor side air wheel 20, and ensure that the condensed water can flow backward along the first groove 50 to the refrigerant pipe.

[0052] There are various ways to rotatably install the water baffle 51 on the top plate 31, such as hinging. In this embodiment, further, for the convenience of production, please refer to Figure 12 and Figure 13 , the water baffle 51 and the top plate 31 are integrally provided, and the connecting side 511 of the water baffle 51 has a folding groove 513 extending horizontally. The thickness of the plate at the folding groove 513 is smaller than the thickness of the plates on both sides of the folding groove 513, so that the water baffle 51 is foldably rotatably connected to the top plate 31. In this way, the top plate 31 and the water baffle 51 can be produced more simply, which is convenient for assembly. On the other hand, it can better ensure the sealing between the water baffle 51 and the top plate 31 to prevent condensed water from leaking out from the gap between the water baffle 51 and the top plate 31.

[0053] In an embodiment, a buckle 514 is provided on the water baffle 51, and a clamping groove 515 corresponding to the buckle 514 is provided on the top plate 31. The buckle 514 has a guiding inclined surface 5140 corresponding to the clamping groove 515 to guide the buckle 514 to smoothly slide into the clamping groove 515 for fixing and be clamped in the clamping groove 515. In this way, when assembling the rear enclosure 30, by pressing the water baffle 51 downward, the baffle can be easily fixed in the closed position, and when maintenance is required, by pressing the buckle 514, the buckle 514 can be disengaged from the clamping groove 515, so as to facilitate opening the water baffle 51 again.

[0054] If the height of the groove is too small, most of the condensed water will be blocked and cannot flow backward to the heat exchanger. If the height of the groove is too large, the groove will not be able to play a drainage role and will cause a decrease in the static pressure in the air duct, and cannot provide enough air pressure to promote the condensed water to flow backward. For this reason, please refer to Figure 3, in order to ensure that the first groove 50 provides sufficient height, the vertical distance H between the bottom surface 52 of the first groove 50 and the outer edge of the water spraying ring 21 is not less than 10 mm and not greater than 50 mm. In this way, on the premise of ensuring the wind pressure, the best condensate drainage effect can be obtained. As a result, as much condensate as possible can be guided above the refrigerant pipes of the outdoor heat exchanger 40, improving the heat exchange efficiency.

[0055] Furthermore, if the width of the groove is too narrow, most of the condensate will be blocked and unable to flow backward to the heat exchanger. If the groove width is too large, it may cause a decrease in the static pressure in the air duct and unable to provide sufficient wind pressure to promote the backward flow of the condensate. Therefore, in this embodiment, please refer to Figure 9 and Figure 10 , both sides of the chassis 10 are respectively provided with a first edge 12 and a second edge 13 extending in the front-rear direction. The span L of the first groove 50 in the direction from the first edge 12 towards the second edge 13 is not less than 60 mm and not greater than 250 mm. In this way, the wind pressure in the air duct can be taken into account, and it can be ensured that the condensate is sprayed more evenly onto the outdoor heat exchanger 40, improving the cooling effect of the condensate on the outdoor heat exchanger 40.

[0056] In one embodiment, the cross-section of the first groove 50 is gradually expanded from top to bottom. In this way, inclined surfaces that are inclined upward and inward are formed on both sides of the groove to better collect the condensate in the air duct.

[0057] In one embodiment, please refer to Figures 8 to 10 , a second groove 60 is further provided on the lower side of the top plate 31. The second groove 60 is provided on at least one side of the first groove 50. The opening of the second groove 60 faces downward, and the rear end of the second groove 60 is located above the refrigerant pipe. In this way, the first groove 50 and the second groove 60 can be provided corresponding to the refrigerant pipe, so that the condensate thrown upward by the water spraying ring 21 is collected and guided in a pre-designed direction under the guiding action of the first groove 50 and the second groove 60, flowing to the refrigerant pipe with greater heat exchange demand, improving the heat exchange effect.

[0058] Based on the previous embodiment, please refer to Figure 1 and Figure 7, the window air conditioner further includes a housing that covers the indoor heat exchange component and the outdoor heat exchange component of the air conditioner, serving to protect the internal components of the air conditioner. The upper wall of the housing is disposed above the top plate 31, and a sponge rubber is pasted on the lower side of the upper wall, and the sponge rubber covers the opening of the second groove 60 facing the rear side. In this embodiment, the sponge rubber is a porous material formed by rubber foaming, having good shock absorption performance and certain sealing performance. Thus, on the one hand, the sponge rubber covers the opening of the second groove 60 facing the rear side, causing the condensed water in the second groove 60 to flow downward to the refrigerant pipe, serving to guide and seal the condensed water. On the other hand, the rubber sponge is located between the outdoor heat exchanger 40 and the top plate 31, and can play a certain buffering role when the top plate 31 is pressed, thereby protecting the heat exchanger.

[0059] In one embodiment, please refer to Figure 6 , Figure 7 and Figure 9 , the front end of the rear enclosure 30 has a front side plate 32, an air inlet is formed on the front side plate 32, and a wind collecting ring 33 extending backward from the front side plate 32 is provided at the air inlet. The wind collecting ring 33 serves to increase the air pressure at the air inlet of the air duct, making the air flow more smoothly backward.

[0060] In this embodiment, the connection between the wind collecting ring 33 and the front side plate 32 is arc-shaped. Thereby reducing the resistance of the air flow and making the air flow more smoothly into the air duct.

[0061] Furthermore, please refer to Figure 3 and Figure 5 , the top end of the wind collecting ring 33 is disposed below the top plate 31 to form a water guide groove 330 with an opening facing backward between the top plate 31 and the wind collecting ring 33. In this embodiment, most of the condensed water lifted by the water splashing ring 21 flows backward under the action of the air pressure and splashes onto the outdoor heat exchange, while a small part of the condensed water flows forward. Please refer to Figure 5 and Figure 6 , the flow direction of part of the condensed water is as shown in the figure, flowing along the path of A - B - E - F. Under the action of the water splashing ring 21, the condensed water is thrown from the water collecting groove 11 (at point A) to the lower side of the top plate 31 above the water splashing ring 21 (at point B). Part of the condensed water flows forward under the action of the centrifugal force and is received at the water guide groove 330 (at point E), and then is guided along the arc-shaped channel formed on the outer side of the wind collecting ring 33 (at point F) and falls under the action of gravity to return to the lower water collecting groove 11. In this embodiment, the water collecting ring and the rear enclosure 30 form an enclosed space to guide the scattered condensed water back to the water collecting groove 11. On the one hand, it can recover the condensed water, and on the other hand, it can prevent the condensed water from splashing out and splashing onto electronic devices such as the wind wheel motor or the compressor, serving to protect the internal electronic devices of the window air conditioner. Preferably, please refer toFigure 4 , Figure 5 and Figure 7 , the bottom surface 52 of the first groove 50 is inclined downward forward from the upper direction of the water scooping ring 21. In this way, the condensed water splashing forward can be better guided to the water guide groove 330, and the drainage effect is better.

[0062] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure made by using the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A window air conditioner, characterized in that, comprising: a chassis, the upper surface of the chassis having a water collecting trough; an outdoor side air wheel, mounted on the chassis and correspondingly mounted above the water collecting trough, a water splashing ring being provided on the outer periphery of the outdoor side air wheel, and the lower end of the water splashing ring extending into the water collecting trough; a rear enclosure plate, provided on the chassis, the rear enclosure plate and the chassis being arranged to commonly enclose the outer periphery of the outdoor side air wheel to form an air duct extending in the front-rear direction, and an air outlet being formed at the rear end of the air duct; an outdoor side heat exchanger, mounted on the chassis and provided at the air outlet of the air duct, the outdoor side heat exchanger including fins and refrigerant pipes mounted on the fins; wherein, the top plate of the rear enclosure plate extends backward above the heat exchanger, and the rear end of the top plate of the rear enclosure plate is located directly above the refrigerant pipes, so that when the outdoor side air wheel operates, the water splashing ring splashes the water in the water collecting trough onto the rear enclosure plate and flows backward along the rear enclosure plate and drips onto the refrigerant pipes; a first groove extending in the front-rear direction is provided on the lower side of the top plate, the opening of the first groove faces downward, the front end of the first groove is located above the water splashing ring, and the rear end of the first groove is located above the refrigerant pipes; a water baffle is provided at the rear end of the first groove, the water baffle extending downward from the bottom of the first groove to cover the opening of the first groove facing the rear side, and the water baffle is rotatably connected to the top plate in an up-and-down manner to have a connecting side connected to the rear end of the top plate and a rotating side rotating around the connecting side; the front end of the rear enclosure plate has a front side plate, an air inlet being formed in the front side plate, and a wind collecting ring extending backward from the front side plate being provided at the air inlet.

2. The window air conditioner according to claim 1, characterized in that, the water baffle and the top plate are integrally provided, and the connecting side of the water baffle has a folding groove extending in the transverse direction, the thickness of the plate member at the folding groove being smaller than the thickness of the plate members on both sides of the folding groove, so that the water baffle is rotatably connected to the top plate in a foldable manner.

3. The window air conditioner according to claim 2, characterized in that, a buckle is provided on the water baffle, a clamping groove corresponding to the buckle is provided on the top plate, the buckle has a guiding inclined surface corresponding to the clamping groove and is clamped in the clamping groove.

4. The window air conditioner according to claim 1, characterized in that, the vertical distance between the bottom surface of the first groove and the outer edge of the water splashing ring is not less than 10 mm and not more than 50 mm.

5. The window air conditioner according to claim 1, characterized in that, the two sides of the chassis respectively have a first edge and a second edge extending in the front-rear direction, and the span of the first groove in the direction from the first edge towards the second edge is not less than 60 mm and not more than 250 mm.

6. The window air conditioner according to claim 1, characterized in that, the cross section of the first groove is arranged to gradually expand from top to bottom.

7. The window air conditioner according to claim 1, characterized in that, A second groove is further provided on the lower side of the top plate. The second groove is provided on at least one side of the first groove. The opening of the second groove faces downward, and the rear end of the second groove is located above the refrigerant pipe.

8. The window air conditioner according to claim 7, wherein, the window air conditioner further includes a housing. The upper wall of the housing is provided on the upper side of the top plate. A sponge rubber is pasted on the lower side of the upper wall. The sponge rubber covers the opening of the second groove facing the rear side.

9. The window air conditioner according to claim 1, wherein, the connection between the air collecting ring and the front side plate is arranged in an arc shape.

10. The window air conditioner according to claim 1, wherein, the top end of the air collecting ring is provided below the top plate to form a water guiding groove with an opening facing backward between the top plate and the air collecting ring.

11. The window air conditioner according to claim 10, wherein, the bottom surface of the first groove is inclined downward from the upper side of the water pumping ring forward.

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