Window Air Conditioner

Abstract

The present invention discloses a window air conditioner, which comprises a casing and a fresh air casing, wherein the casing comprises an indoor part and an outdoor part, and the fresh air casing is installed in the casing. The fresh air casing is configured with a fresh air inlet located in the outdoor part, and a fresh air outlet located in the indoor part, and a fresh air duct connecting the fresh air inlet and the fresh air outlet is formed inside the fresh air casing, and the fresh air duct is suitable for delivering air from the outdoor environment into the indoor environment. The fresh air duct comprises an air inlet section corresponding to the fresh air inlet, and an air outlet section corresponding to the fresh air outlet, and the ventilation cross-sectional area of ​​the air outlet section is smaller than the ventilation cross-sectional area of ​​the air inlet section. The window air conditioner of the present invention can increase the wind speed of the fresh air, thereby increasing the air volume of the fresh air.

Description

Technical Field

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

[0002] Window air conditioners are usually installed on the window frame of the wall and are used to cool or heat the indoor environment. With the demand for healthy air, a window air conditioner with a fresh air function has emerged. This type of window air conditioner usually adds a fresh air shell in its casing to introduce fresh air from the outdoor environment into the indoor environment through the fresh air shell. However, this conventional fresh air shell is usually designed in a cylindrical shape. As the air flows, the air pressure in the air outlet section of the fresh air shell gradually decreases, which reduces the wind speed of the fresh air, resulting in a small fresh air volume. Summary of the invention

[0003] The main purpose of the present invention is to provide a window air conditioner, aiming to increase the wind speed of fresh air and thus increase the fresh air volume.

[0004] To achieve the above-mentioned purpose, the present invention proposes a window air conditioner. The window air conditioner includes a casing and a fresh air casing, the casing includes an indoor part and an outdoor part, and the fresh air casing is installed in the casing. The fresh air casing is configured with a fresh air inlet located in the outdoor part, and a fresh air outlet located in the indoor part, and a fresh air duct connecting the fresh air inlet and the fresh air outlet is formed inside the fresh air casing, and the fresh air duct is suitable for sending air from the outdoor environment into the indoor environment. The fresh air duct includes an air inlet section corresponding to the fresh air inlet, and an air outlet section corresponding to the fresh air outlet, and the ventilation cross-sectional area of ​​the air outlet section is smaller than the ventilation cross-sectional area of ​​the air inlet section.

[0005] Optionally, the window air conditioner further comprises an indoor heat exchanger installed in the indoor part; the air outlet section comprises a first air outlet portion connected to the air inlet section and extending horizontally, and a second air outlet portion connected to the first air outlet portion and extending longitudinally;

[0006] Part of the first air outlet is located below the indoor heat exchanger, and part of the second air outlet is located on the air inlet side of the indoor heat exchanger.

[0007] Optionally, the portion of the fresh air housing corresponding to the first air outlet is arranged in a flat shape, so that the portion of the fresh air housing corresponding to the first air outlet is embedded between the bottom plate of the housing and the bottom of the indoor heat exchanger.

[0008] Optionally, the casing is configured with an indoor air inlet on the front side of the indoor part, and an outdoor air outlet on the top surface corresponding to the indoor part; the fresh air outlet of the fresh air casing is configured on the side wall of the second air outlet part, and the fresh air outlet is suitable for supplying air to the air inlet side of the indoor heat exchanger or to the indoor air inlet.

[0009] Optionally, the air inlet section includes an air inlet portion arranged in a cylindrical shape, and an air guide portion connecting the air inlet portion and the air outlet section, and a ventilation cross-section of the air guide portion is arranged to be gradually reduced from the air inlet portion to the air outlet section.

[0010] Optionally, the fresh air shell includes a bottom shell and a shell cover covering the bottom shell, and the top wall of the shell cover is constructed with an air guide wall at a portion corresponding to the air guide portion, and the air guide wall is arranged in an arc shape from top to bottom so that the air guide portion is arranged in a tapered shape.

[0011] Optionally, the shell cover is provided with a bulge protruding upward at a portion corresponding to the air outlet section, the bulge is close to the air guide wall, and the shell cover is provided with an installation groove for corresponding installation of the indoor heat exchanger of the window air conditioner on a side of the bulge away from the air guide portion.

[0012] Optionally, the shell cover is formed with an expansion groove on the inner side of the convex hump, and the expansion groove is connected to the air guide portion.

[0013] Optionally, the chassis structure is formed with a water receiving groove corresponding to the indoor part of the casing, and the bottom shell of the fresh air casing is formed with a protrusion at a position corresponding to the water receiving groove, and the protrusion corresponds to the water receiving groove.

[0014] Optionally, the chassis structure is formed with a sink corresponding to the outdoor heat exchanger of the window air conditioner, the chassis is formed with a first boss between the sink and the water receiving trough, the bottom shell of the fresh air shell is formed with a first recess at a position corresponding to the first boss, and the first recess corresponds to the first boss.

[0015] Optionally, the chassis is further constructed with a second boss between one side of the trough and the first boss, the second boss being higher than the first boss, and the bottom shell of the fresh air shell is formed with a second recess at a position corresponding to the trough, the second recess being supported by the second boss to separate the bottom shell of the fresh air shell from the bottom of the trough.

[0016] Optionally, a support frame is protruding from the lower surface of the second recess, and the support frame is suitable for being held against the bottom of the trough to support the fresh air shell.

[0017] Optionally, the window air conditioner further comprises a water receiving tray mounted on the water receiving groove, one end of the water receiving tray extends to above the fresh air shell and corresponds to an upper surface above the fresh air shell.

[0018] Optionally, the window air conditioner also includes a pad arranged in the water receiving groove, which is located on one side of the fresh air shell and is flush with the part of the fresh air shell located in the water receiving groove, so as to cooperate with the part of the fresh air shell located in the water receiving groove to support the water receiving tray.

[0019] Optionally, the water receiving tray is configured with a drainage groove, which extends from the water receiving tray toward the sink to drain water to the sink of the chassis.

[0020] Optionally, the window air conditioner also includes a compressor, a switch, and a dehumidification heat exchanger, and the compressor, the switch, the outdoor heat exchanger, the indoor heat exchanger and the dehumidification heat exchanger are connected by a refrigerant pipe to form a refrigerant circulation loop; wherein the dehumidification heat exchanger is arranged on the air inlet side of the indoor heat exchanger.

[0021] Optionally, an indoor air inlet is provided on the front of the casing, and the window air conditioner also includes an indoor side heat exchanger, the indoor heat exchanger includes a first indoor heat exchanger and a second indoor heat exchanger arranged corresponding to the indoor air inlet, and the window air conditioner has a constant temperature dehumidification mode. In the constant temperature dehumidification mode, one of the first indoor heat exchanger and the second indoor heat exchanger is in a heating mode, and the other is in a cooling mode.

[0022] Optionally, the first indoor heat exchanger and the second indoor heat exchanger are stacked along the air inlet direction of the indoor air inlet; or,

[0023] The first indoor heat exchanger and the second indoor heat exchanger are arranged side by side in an air inlet direction perpendicular to the indoor air inlet.

[0024] Optionally, the window air conditioner also includes an outdoor heat exchanger, a refrigerant circulation pipeline, a first valve and a second valve; the refrigerant outlet of the compressor of the window air conditioner is provided with a discharge pipe, and the refrigerant inlet is provided with a suction pipe; the discharge pipe, the outdoor heat exchanger, the first indoor heat exchanger, the second indoor heat exchanger, and the suction pipe are connected in sequence through the refrigerant circulation pipeline; the first valve is connected in series to the refrigerant circulation pipeline between the outdoor heat exchanger and the first indoor heat exchanger, and the second valve is connected in series to the refrigerant circulation pipeline between the first indoor heat exchanger and the second indoor heat exchanger.

[0025] Optionally, the refrigerant circulation pipeline includes a first pipe connecting the discharge pipe and the outdoor heat exchanger, and a second pipe connecting the suction pipe and the second indoor heat exchanger; the window air conditioner also includes a switching device;

[0026] The switching device is connected in series to the first pipe and the second pipe, and the switching device has a first switching state and a second switching state;

[0027] In the first switching state, the first pipe connected to both ends of the switching device is conductive, and the second pipe connected to both ends of the switching device is conductive;

[0028] In the second switching state, the first pipe between the discharge pipe and the switching device is connected to the second pipe between the switching device and the second indoor heat exchanger, and the first pipe between the outdoor heat exchanger and the switching device is connected to the second pipe between the suction pipe and the switching device.

[0029] Optionally, the window air conditioner further comprises a controller, wherein the controller is electrically connected to the switching device, the first valve and the second valve;

[0030] When the window air conditioner is in a constant temperature dehumidification mode, the controller is used to control the switching device to be in a first switching state, and to control the first valve to be fully opened and the second valve to be partially opened; and / or,

[0031] The window air conditioner also has a full cooling mode. When the window air conditioner is in the full cooling mode, the controller is used to control the switching device to be in a first switching state, and to control the first valve to be partially opened and the second valve to be fully opened; and / or,

[0032] The window air conditioner also has a full heating mode. When the window air conditioner is in the full heating mode, the controller is used to control the switching device to be in a second switching state, and to control the second valve to be fully opened and the first valve to be partially opened.

[0033] The technical solution of the present invention is to make the ventilation cross-sectional area of ​​the air outlet section of the fresh air duct smaller than the ventilation cross-sectional area of ​​its air inlet section, so that the airflow is squeezed and compressed into the air outlet section in the process of entering the air outlet section from the air inlet section. The fresh air in the air outlet section is squeezed to increase the air pressure, and the fresh air with higher air pressure quickly flows to the fresh air outlet, so that the fresh air obtains a higher wind speed, and then is quickly blown out from the fresh air outlet, effectively increasing the fresh air volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0035] Figure 1 It is a structural schematic diagram of an embodiment of a window air conditioner of the present invention;

[0036] Figure 2 for Figure 1 A front view of a portion of the structure of a mid-window air conditioner;

[0037] Figure 3 for Figure 2 Rear view of part of the structure of a window air conditioner

[0038] Figure 4 A schematic diagram of the assembly of a fresh air housing and a chassis of a window air conditioner of the present invention;

[0039] Figure 5 for Figure 4 Schematic diagram of the assembly structure of the new windshield and chassis from another perspective;

[0040] Figure 6 for Figure 5 Schematic diagram of the assembly of the central fresh air housing, chassis and water tray;

[0041] Figure 7 for Figure 6 A top view of the assembly structure of the central fresh air housing, chassis, and water tray;

[0042] Figure 8 for Figure 7 Sectional view along line II;

[0043] Fig. 9 It is a structural schematic diagram of a fresh air housing of a window air conditioner of the present invention;

[0044] Fig.10 for Fig. 9 Schematic diagram of the new wind shell from another perspective;

[0045] Fig.11 for Fig. 9 Schematic diagram of the new wind shell from another angle;

[0046] Fig.12 It is a structural schematic diagram of another embodiment of the window air conditioner of the present invention;

[0047] Fig.13 It is a structural schematic diagram of another embodiment of the window air conditioner of the present invention.

[0048] Description of Figure Numbers:

[0049]

[0050] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0053] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0054] Figures 1 to 13 The accompanying drawings are embodiments of the window air conditioner of the present invention. In the embodiment of the window air conditioner provided by the present invention, the window air conditioner is made of an indoor unit and an outdoor unit in one body, and the window air conditioner is installed on the window frame of the building, which can realize cooling or heating of the indoor environment. The window air conditioner can also introduce outdoor fresh air into the room, and the wind speed of the introduced fresh air is high and the fresh air volume is large. The embodiment of the window air conditioner will be introduced and explained below.

[0055] See also Figures 1 to 3In one embodiment of the window air conditioner 100 of the present invention, the window air conditioner 100 includes a housing 110 and a fresh air housing 200, the housing 110 includes an indoor part 102 and an outdoor part 101, and the fresh air housing 200 is installed in the housing 110. The fresh air housing 200 is configured with a fresh air inlet 201 located in the outdoor part 101, and a fresh air outlet 202 located in the indoor part 102, and a fresh air duct connecting the fresh air inlet 201 and the fresh air outlet 202 is formed inside the fresh air housing 200, and the fresh air duct is suitable for sending air from the outdoor environment into the indoor environment. Among them, the fresh air duct includes an air inlet section 230 corresponding to the fresh air inlet 201, and an air outlet section 240 corresponding to the fresh air outlet 202, and the ventilation cross-sectional area of ​​the air outlet section 240 is smaller than the ventilation cross-sectional area of ​​the air inlet section 230.

[0056] Specifically, the housing 110 has a front surface, a back surface, a side surface and a top surface. The top surface can be a plane designed in a whole horizontal shape, or it can be composed of a plane and an inclined surface connected to the front end of the plane. Here, the front surface of the housing 110 is provided with an indoor air inlet 103, and the front end (i.e., the inclined surface) of the top surface of the housing 110 is provided with an indoor air outlet 104. The back of the housing 110 is provided with an outdoor air inlet, and the side of the housing 110 is provided with an outdoor air outlet.

[0057] The window air conditioner 100 further includes an indoor air duct housing 160 and an outdoor air duct housing 170. The indoor air duct housing 160 is installed in the indoor part 102 of the housing 110 to form an indoor air duct connecting the indoor air inlet 103 and the indoor air outlet 104. The outdoor air duct housing 170 is installed in the outdoor part 101 of the housing 110 to form an outdoor air duct connecting the outdoor air inlet and the outdoor air outlet. The window air conditioner 100 further includes an indoor heat exchanger 120 and an outdoor heat exchanger 130. The indoor heat exchanger 120 is installed in the indoor part 102 of the housing 110 and corresponds to the indoor air inlet 103; the outdoor heat exchanger 130 is installed in the outdoor part 101 of the housing 110 and corresponds to the outdoor air inlet. The window air conditioner 100 further includes an indoor fan 140 and an outdoor fan 150. The indoor fan 140 is installed in the indoor air duct to drive air from the indoor air outlet to the indoor air duct, and then blown out from the indoor air outlet after heat exchange with the indoor heat exchanger 120. The outdoor fan 150 is installed in the outdoor air duct to drive air from the outdoor air outlet to the outdoor air duct, and then blown out from the outdoor air outlet after heat exchange with the outdoor heat exchanger 130.

[0058] As for the fresh air housing 200, the fresh air housing 200 can be installed on the left or right side of the housing 110, and the fresh air housing 200 extends from the outdoor part 101 of the housing 110 to the indoor part 102 thereof. When the window air conditioner 100 is turned on the fresh air mode, the fresh air from the outdoor environment enters from the fresh air inlet 201 of the fresh air housing 200, and then flows to the fresh air outlet 202 through the air inlet section 230 and the air outlet section 240 of the fresh air duct in sequence, and finally blows out from the fresh air outlet 202. By reasonably designing the position of the fresh air outlet 202 of the fresh air housing 200, the air blown out from the fresh air outlet 202 can be directly blown out from the indoor air inlet 103 of the housing 110 to the indoor room; or, the air blown out from the fresh air outlet 202 can also be blown to the air inlet side of the indoor heat exchanger 120, and blown out from the indoor air outlet 104 to the indoor environment after heat exchange or dehumidification by the indoor heat exchanger 120.

[0059] The technical solution of the present invention is to make the ventilation cross-sectional area of ​​the outlet section 240 of the fresh air duct smaller than the ventilation cross-sectional area of ​​its inlet section 230, so that when the airflow enters the air outlet section 240 from the inlet section 230, the airflow is squeezed and compressed into the air outlet section 240, and the fresh air in the air outlet section 240 is squeezed to increase the air pressure, and the fresh air with higher air pressure quickly flows to the fresh air outlet 202, so that the fresh air obtains a higher wind speed, and then quickly blows out from the fresh air outlet 202, effectively increasing the fresh air volume. As for the shape and structure of the fresh air shell 200, there is no limitation, and it is sufficient to require that the ventilation cross-sectional area of ​​the outlet section 240 of the fresh air duct is smaller than the ventilation cross-sectional area of ​​the inlet section 230. The details will be described in detail later.

[0060] See also Figure 1 , Figure 2 and Figure 8 In one embodiment, the fresh air blown out by the fresh air housing 200 can be blown out directly from the indoor air duct through the indoor air outlet 104, or can be blown directly to the air inlet side of the indoor heat exchanger 120 first, and then blown out from the indoor air duct through the indoor air outlet 104 after heat exchange by the indoor heat exchanger 120, or can be blown out directly from the indoor air inlet 103. In this embodiment, the window air conditioner 100 also includes an indoor heat exchanger 120 installed in the indoor part 102; the air outlet section 240 includes a first air outlet portion 241 connected to the air inlet section 230 and extending in the horizontal direction, and a second air outlet portion 242 connected to the first air outlet portion 241 and extending in the longitudinal direction. Among them, part of the first air outlet portion 241 is located below the indoor heat exchanger 120, and part of the second air outlet portion 242 is located on the air inlet side of the indoor heat exchanger 120.

[0061] Specifically, the first air outlet 241 and the second air outlet 242 of the air outlet section 240 are substantially L-shaped, and the fresh air outlet 202 of the fresh air housing 200 corresponds to the second air outlet 242. Since the portion of the fresh air housing 200 corresponding to the second air outlet 242 is located at the air inlet side of the indoor heat exchanger 120, the fresh air blown out from the fresh air outlet 202 of the fresh air housing 200 can be blown out directly from the front side of the window air conditioner 100, or pass through the air inlet side of the indoor heat exchanger 120 and enter the indoor air duct, and then blown out from the indoor air outlet 104.

[0062] In addition, since the ventilation cross-sectional area of ​​the air outlet section 240 is small, the partial volume of the fresh air housing 200 corresponding to the air outlet section 240 can also be designed to be smaller accordingly, so that it can be easily installed under the indoor heat exchanger 120, occupying less space, and there is no need to reserve a position between the indoor fan 140 and the indoor heat exchanger 120 for the installation of the fresh air housing 200.

[0063] Furthermore, the casing 110 is constructed with an indoor air inlet 103 on the front of the indoor part 102, and an outdoor air outlet is constructed on the top surface of the corresponding indoor part 102; the fresh air outlet 202 of the fresh air casing 200 is constructed on the side wall of the second air outlet part 242, and the fresh air outlet 202 is suitable for blowing out to the air inlet side of the indoor heat exchanger 120 or supplying air to the indoor air inlet 103.

[0064] In one embodiment, in order to facilitate the installation of the fresh air housing 200, the portion of the fresh air housing 200 corresponding to the first air outlet 241 is flat, so that the thickness of the portion of the fresh air housing 200 corresponding to the first air outlet 241 is small, so that the portion of the fresh air housing 200 corresponding to the first air outlet 241 can be embedded between the bottom plate 111 of the housing 110 and the bottom of the indoor heat exchanger 120. In addition, such a design can also make the first air outlet 241 narrower than the air inlet section 230, which helps to increase the air pressure of the first air outlet 241, and then drive the airflow to blow out faster.

[0065] See also Figure 1 , Figure 2 and Figure 8 Based on any of the above embodiments, the shape of the air inlet section 230 of the fresh air duct in the fresh air shell 200 can be a straight tube with a constant ventilation cross section, or an irregular shape with a gradual ventilation cross section. Considering that if the air inlet section 230 is designed in a straight tube shape, and the first air outlet portion 241 of the air outlet section 240 connected to the air inlet section 230 is designed in a flat shape, then a sudden change in cross-sectional area will occur between the air inlet section 230 and the air outlet section 240 (similar to the sudden decrease in cross-sectional area from the air inlet section 230 to the air outlet section 240), a large wind resistance will be formed at the position of the sudden change in cross-sectional area, which is not conducive to the flow of air.

[0066] In view of this, the air inlet section 230 may adopt an irregular design with a gradual ventilation cross section. Optionally, the air inlet section 230 includes an air inlet portion 231 arranged in a cylindrical shape, and an air guide portion 232 connecting the air inlet portion 231 and the air outlet section 240, and the ventilation cross section of the air guide portion 232 is arranged to be gradually reduced from the air inlet portion 231 to the air outlet section 240.

[0067] Specifically, the air passes through the air inlet 231 and enters the air guide 232, and then is guided by the air guide 232 to enter the air outlet section 240, and finally blown out from the fresh air outlet 202 of the air outlet section 240. Since the ventilation cross-sectional area of ​​the air guide 232 is gradually reduced from the air inlet 231 to the air outlet section 240, a sudden change in the cross-sectional area between the air inlet section 230 and the first air outlet 241 of the air outlet section 240 can be avoided, thereby avoiding the formation of a large wind resistance at this position, so that the airflow can smoothly enter the air outlet section 240 from the air inlet section 230.

[0068] Furthermore, the fresh air housing 200 includes a bottom housing 210 and a housing cover 220 covering the bottom housing 210. The top wall of the housing cover 220 is configured with an air guide wall 221 at a portion corresponding to the air guide portion 232. The air guide wall 221 is arranged in an arc shape from top to bottom, so that the air guide portion 232 is arranged in a tapered shape. In addition, the arc-shaped design of the air guide wall 221 can also make the air guide wall 221 have better strength and is not easy to deform.

[0069] See also Figures 8 to 10 In order to enhance the strength of the air guide wall 221, a convex hump 222 may be formed upwardly on the portion of the shell cover 220 corresponding to the air outlet section 240, and the convex hump 222 is close to the air guide wall 221. An installation groove 223 for correspondingly installing the indoor heat exchanger 120 of the window-type air conditioner 100 is formed on the shell cover 220 on the side of the convex hump 222 away from the air guide portion 232.

[0070] Specifically, the convex hump 222 is close to the air guide wall 221, so that the convex hump 222 can be used as a reinforcement structure of the air guide wall 221 to strongly support the air guide wall 221, so that the air guide wall 221 is not easily deformed. The convex hump 222 is formed by the shell cover 220 of the fresh air shell 200 partially bulging upward, so that an expansion groove is formed on the inner side of the convex hump 222 of the shell cover 220, and the expansion groove is connected to the air guide part 232, so that the expansion groove forms a part of the fresh air duct. The existence of the expansion groove can make up for the air duct space occupied by the first recessed part of the bottom shell 210, so that the ventilation cross-sectional area before and after the air outlet section 240 is basically the same. Furthermore, the expansion groove is located at the turning position between the air inlet section 230 and the air outlet section 240, thereby increasing the air duct space at the turning position between the air inlet section 230 and the air outlet section 240, helping to reduce the resistance of the turning position to the air flow, so that the airflow can smoothly enter the air outlet section 240 from the air inlet section 230, thereby increasing the air volume; and it can also prevent the airflow from colliding with the inner wall of the air duct at the turning point, thereby avoiding the generation of loud noise.

[0071] In one embodiment, the window air conditioner 100 further includes a fresh air blower 300, which can be installed on the outside of the fresh air housing 200 or on the inside of the fresh air housing 200. Specifically, the fresh air blower 300 is installed on the inside of the fresh air housing 200 and is located at the air inlet portion 231 of the air inlet section 230 of the fresh air housing 200, so that the fresh air blower 300 forms a larger air pressure in the air inlet section 230 of the fresh air housing 200, thereby driving more fresh air into the fresh air housing 200 and increasing the fresh air volume.

[0072] See also Figures 5 to 7 Based on any of the above embodiments, since the fresh air shell 200 is installed on the chassis 111, and the upper surface shape of the chassis 111 is usually irregular, an uneven surface is formed on the chassis 111. Therefore, in order to ensure the stable installation of the fresh air shell 200, the bottom shell 210 of the fresh air shell 200 and the chassis 111 can be roughly adapted in shape, and the specific design can be made according to the concave and convex positions of the chassis 111.

[0073] See also Figures 8 to 10In one embodiment, the bottom plate 111 is structured to form a water receiving groove 11 corresponding to the indoor part 102 of the housing 110, and the bottom shell 210 of the fresh air housing 200 is formed with a protrusion 211 at a position corresponding to the water receiving groove 11, and the protrusion 211 is matched with the water receiving groove 11. The water receiving groove 11 corresponds to the installation of the indoor air duct housing 160 and the indoor heat exchanger 120. The bottom shell 210 of the fresh air housing 200 is matched with one end of the water receiving groove 11 through the protrusion 211, and the protrusion 211 forms a surface contact with the bottom surface of the water receiving groove 11, which increases the matching area between the bottom shell 210 of the fresh air housing 200 and the water receiving groove 11, so that the fresh air housing 200 is not easy to shake at the water receiving groove 11, and the stability of the installation of the fresh air housing 200 is enhanced.

[0074] Furthermore, the chassis 111 is structured to form a sink 14 corresponding to the outdoor part 101 of the housing 110, and the chassis 111 forms a first boss 12 between the sink 14 and the water receiving tank 11, and the bottom shell 210 of the fresh air housing 200 is matched with the corresponding first boss 12. The water receiving tank 11 and the sink 14 are separated by the first boss 12, so that the water in the sink 14 is not easy to overflow back to the water receiving tank 11, reducing and avoiding overflow to the indoor room.

[0075] It is taken into consideration here that if the corresponding air inlet section 230 of the fresh air shell 200 corresponds to the trough 14, then the water in the trough 14 may enter the fresh air duct from the fresh air inlet 201 of the fresh air shell 200, thereby causing the fresh air to be too humid or water blowing.

[0076] See also Figures 8 to 11 To avoid the above situation, a second boss 13 may be constructed on the chassis 111 between one side of the sink 14 and the first boss 12. The second boss 13 is higher than the first boss 12. The bottom shell 210 of the fresh air shell 200 is formed with a second recess 213 at a position corresponding to the sink 14. The second recess 213 is supported by the second boss 13, and the bottom shell 210 of the fresh air shell 200 is separated from the bottom of the sink 14.

[0077] Specifically, supporting the second recess 213 of the fresh air shell 200 by the second boss 13 is equivalent to raising the fresh air inlet 201 of the fresh air shell 200 by the second boss 13, so that the water in the trough 14 is not easy to enter the fresh air duct from the fresh air inlet 201 of the fresh air shell 200, thereby avoiding the fresh air being too humid or the occurrence of water blowing.

[0078] To sum up, the water receiving trough 11 and the first boss 12 and the second boss 13 of the chassis 111 are roughly arranged in a stepped shape; accordingly, the raised portion 211 and the first recessed portion 212 and the second recessed portion 213 on the bottom shell 210 of the fresh air shell 200 are also roughly designed in a stepped shape, so that the fresh air shell 200 can basically adapt to the shape of the chassis 111.

[0079] Furthermore, considering that the fresh air inlet 201 of the fresh air housing 200 needs to be close to the outdoor air inlet, the end of the fresh air housing 200 close to the fresh air inlet 201 will extend from the top of the sink 14 to the outdoor air inlet, that is, the second recess 213 of the fresh air housing 200 will be suspended above the sink 14, so there is a possibility that the fresh air housing 200 will fall toward the sink 14. To avoid this, a support frame 214 can be convexly provided on the lower surface of the second recess 213, and the support frame 214 is suitable for being held at the bottom of the sink 14 to support the fresh air housing 200, so that the fresh air housing 200 is not easy to fall toward the sink 14, and the stability of the installation of the fresh air housing 200 is greatly improved.

[0080] See also Figures 6 to 8 Based on any of the above embodiments, the window air conditioner 100 further includes a water receiving pan 400 installed on the water receiving tank 11, and the water receiving pan 400 is suitable for receiving condensed water generated by the indoor heat exchanger 120. Here, one end of the water receiving pan 400 can be extended to the top of the fresh air shell 200 to prevent the condensed water from directly falling on the fresh air shell 200 and wetting the fresh air shell 200. Optionally, it is matched with the upper surface above the fresh air shell 200. For example, the shell cover 220 of the fresh air shell 200 is convexly provided with a convex hump 222, and accordingly, the bottom surface of the water receiving pan 400 is constructed with a receiving groove for correspondingly receiving the convex hump 222.

[0081] Since one end of the water tray 400 extends above the fresh air housing 200, if the end of the water tray 400 away from the fresh air housing 200 is suspended in the air, the water tray 400 will shake and become unstable. To solve this problem, the window air conditioner 100 further includes a pad disposed in the water receiving groove 11, the pad being located on one side of the fresh air housing 200 and flush with the portion of the fresh air housing 200 located in the water receiving groove 11, so as to cooperate with the portion of the fresh air housing 200 located in the water receiving groove 11 to support the water tray 400. The pad can be made of an elastic or flexible material such as foam or sponge, so that it can be in closer contact with the bottom surface of the water tray 400 and have higher stability.

[0082] Furthermore, in order to drain the water from the water tray 400 , a drainage groove 410 is configured in the water tray 400 , and the drainage groove 410 extends from the water tray 400 toward the sink 14 , so as to drain the water to the sink 14 of the bottom plate 111 , and finally drain the water to the outdoor environment through the sink 14 .

[0083] Please refer to Figure 3 and Fig.12Based on any of the above embodiments, the housing of the window air conditioner is provided with an indoor air inlet 103 on the front of its housing 112. Here, the front of the housing 112 should refer to the side of the window air conditioner facing the user. The indoor heat exchanger 120 of the window air conditioner includes a first indoor heat exchanger 121 and a second indoor heat exchanger 122. The window air conditioner has a constant temperature dehumidification mode. In the constant temperature dehumidification mode, one of the first indoor heat exchanger 121 and the second indoor heat exchanger 122 is in a heating mode, and the other is in a cooling mode.

[0084] In this embodiment, the indoor heat exchanger 120 has a first indoor heat exchanger 121 and a second indoor heat exchanger 122, and in the constant temperature dehumidification mode, one of the first indoor heat exchanger 121 and the second indoor heat exchanger 122 is in the heating mode, and the other is in the cooling mode. The airflow passing through the indoor heat exchanger 120 can be heated and dehumidified at the same time, and the temperature of the mixed air after heating and dehumidification is appropriate, and there will be no feeling of cool wind. After the reciprocating cycle, not only can all indoor air and fresh air be dehumidified again, but also the entire indoor temperature of the window air conditioner will not drop in the dehumidification mode, and the purpose of constant temperature dehumidification of the whole house can be achieved. At the same time, the indoor heat exchanger 120 can be fully utilized during dehumidification, and there is no need to set up a fresh air condenser and a fresh air evaporator separately, which greatly reduces the manufacturing cost.

[0085] In one embodiment, please refer to Figure 3 and Fig.12 , the first indoor heat exchanger 121 and the second indoor heat exchanger 122 are stacked along the air inlet direction of the indoor side air duct. When the first indoor heat exchanger 121 and the second indoor heat exchanger 122 are stacked along the air inlet direction of the indoor side air duct, the indoor air or fresh air entering from the indoor air inlet 103 is first dehumidified / heated by the first indoor heat exchanger 121, and then heated / dehumidified by the second indoor heat exchanger 122. The indoor fan sends the heated and dehumidified airflow into the room from the indoor air outlet to achieve constant temperature dehumidification of the whole house. When the first indoor heat exchanger 121 and the second indoor heat exchanger 122 are stacked along the air inlet direction, all the airflows blown out from the indoor air inlet 103 can be heated at the same time and then dehumidified at the same time, so there is no need to separate the heating and dehumidification into two different airflows, reducing the mixing steps, and making the temperature and humidity of the airflow blown out from the indoor air outlet more uniform and comfortable.

[0086] In another implementation, see Fig.13 The first indoor heat exchanger 121 and the second indoor heat exchanger 122 are arranged side by side in the air inlet direction perpendicular to the indoor side air duct, so that part of the airflow entering from the indoor air inlet 103 blows toward the first indoor heat exchanger 121, and the other part blows toward the second indoor heat exchanger 122.

[0087] In this embodiment, the air inlet direction of the indoor air inlet 103 is usually the front-to-back direction, and the direction perpendicular to the air inlet direction of the indoor air inlet 103 can be the left-right and up-down directions. In this way, the first indoor heat exchanger 121 and the second indoor heat exchanger 122 can be arranged up and down or left and right. The fresh air or indoor air entering from the indoor air inlet 103 is partially heated / dehumidified by the first indoor heat exchanger 121, and the other part is dehumidified / heated by the second indoor heat exchanger 122, and then mixed in the indoor side air duct to form a dry airflow with a suitable temperature, and then the indoor fan sends the constant temperature dry airflow from the indoor air outlet into the room, so as to achieve constant temperature dehumidification of the whole house. When the first indoor heat exchanger 121 and the second indoor heat exchanger 122 are arranged in an up-and-down arrangement, only one indoor heat exchanger can be provided, and its upper part can be divided into the first indoor heat exchanger 121, and its lower part can be divided into the second indoor heat exchanger 122, and one of the upper heat exchanger and the lower heat exchanger can be controlled by a control valve to be in a heating state and the other in a cooling state. In this way, the space occupied by the indoor heat exchanger 120 can be greatly reduced, so that the overall structure is more compact and the volume of the whole machine is smaller. By arranging the first indoor heat exchanger 121 and the second indoor heat exchanger 122 up and down or left and right, the thickness of the indoor heat exchanger 120 can be greatly reduced, and the space in the height direction of the shell 112 can be fully utilized, thereby reducing the space occupied by the indoor heat exchanger 120 and reducing the volume and weight of the whole machine.

[0088] In one embodiment, the window air conditioner also includes an outdoor heat exchanger 130, a refrigerant circulation pipeline, a first valve 510 and a second valve 520. The refrigerant outlet of the compressor 180 of the window air conditioner is provided with a discharge pipe 181, and the refrigerant inlet is provided with a suction pipe 182. The discharge pipe 181, the outdoor heat exchanger 130, the first indoor heat exchanger 121, the second indoor heat exchanger 122, and the suction pipe 182 are connected in sequence through the refrigerant circulation pipeline. The first valve 510 is connected in series to the refrigerant circulation pipeline between the outdoor heat exchanger 130 and the first indoor heat exchanger 121, and the second valve 520 is connected in series to the refrigerant circulation pipeline between the first indoor heat exchanger 121 and the second indoor heat exchanger 122.

[0089] In the present embodiment, the compressor 180 may be a variable frequency compressor 180 or a fixed frequency compressor 180. By making the compressor 180 a variable frequency compressor 180, the dual system of refrigeration and constant temperature dehumidification can be better realized, saving a compressor 180, thereby making the overall structure simpler, reducing costs and power, and greatly improving energy efficiency. The first valve 510 and the second valve 520 may be solenoid valves, electronic expansion valves or throttle valves, which can control the on-off or flow rate of the pipes in which they are located. By setting the first valve 510 and the second valve 520, it is possible to control whether the refrigerant flows into the first indoor heat exchanger 121 and the second indoor heat exchanger 122, thereby controlling whether the first indoor heat exchanger 121 and the second indoor heat exchanger 122 participate in cooling or heating.

[0090] When the dehumidification mode needs to be turned on, the high-temperature refrigerant flowing out of the compressor 180 enters the outdoor heat exchanger 130 (condenser), so that the high-temperature refrigerant coming out of the outdoor heat exchanger 130 reaches the first valve 510. At this time, the first valve 510 can be fully or mostly opened to make the temperature of the outdoor heat exchanger 130 equal to or slightly lower than the temperature of the first indoor heat exchanger 121. At this time, the first indoor heat exchanger 121 is a condenser, which plays a role in heating the airflow. Then the sub-high-temperature refrigerant flowing out of the first indoor heat exchanger 121 reaches the second valve 520. The second valve 520 is partially opened, which plays a role of capillary throttling. After throttling, the refrigerant becomes a low-temperature refrigerant and flows through the second indoor heat exchanger 122. At this time, the second indoor heat exchanger 122 is an evaporator, which plays a role in cooling, that is, dehumidification. The refrigerant flowing out of the second indoor heat exchanger 122 returns to the compressor 180. In this way, after the fresh air and the indoor air are mixed, part of them are heated by the first indoor heat exchanger 121, and part of them are cooled and dehumidified by the second indoor heat exchanger 122, and then enter the indoor side air duct to form a dry airflow with a suitable temperature, and then blown out from the indoor air outlet, thereby achieving the purpose of dehumidifying the room without blowing cold air, and the dehumidification effect is better. Of course, the first indoor heat exchanger 121 can also be used as an evaporator, and the second indoor heat exchanger 122 can be used as a condenser, which can also achieve the purpose of constant temperature dehumidification.

[0091] When dehumidification is not required and only the full cooling mode needs to be turned on, the high-temperature refrigerant flowing out of the compressor 180 enters the outdoor heat exchanger 130 (condenser), so that the high-temperature refrigerant coming out of the outdoor heat exchanger 130 reaches the first valve 510. At this time, a small part of the first valve 510 is opened to play a capillary flow, so that the temperature of the first indoor heat exchanger 121 is much lower than the temperature of the outdoor heat exchanger 130. At this time, the first indoor heat exchanger 121 is an evaporator, which plays a role in cooling. Then the low-temperature refrigerant flowing out of the first indoor heat exchanger 121 reaches the second valve 520. The second valve 520 is fully or mostly opened, which plays a role of full passage or re-throttling. The refrigerant passing through the second valve 520 flows through the second indoor heat exchanger 122. At this time, the second indoor heat exchanger 122 is an evaporator, which plays a role of secondary cooling. The refrigerant flowing out of the second indoor heat exchanger 122 returns to the compressor 180. In this way, the fresh air and indoor air are mixed and cooled by the first indoor heat exchanger 121, and then cooled again by the second indoor heat exchanger 122. After entering the indoor side air duct, they are blown out from the indoor air outlet, thereby achieving the purpose of rapid indoor cooling.

[0092] In one embodiment, the refrigerant circulation pipeline includes a first pipe 610 connecting the discharge pipe 181 and the outdoor heat exchanger 130, and a second pipe 620 connecting the suction pipe 182 and the second indoor heat exchanger 122. The window air conditioner also includes a switching device 700, which is connected in series to the first pipe 610 and the second pipe 620, and the switching device 700 has a first switching state and a second switching state. In the first switching state, the first pipe 610 connected to both ends of the switching device 700 is connected, and the second pipe 620 connected to both ends of the switching device 700 is connected. In the second switching state, the first pipe 610 between the discharge pipe 181 and the switching device 700 is connected to the second pipe 620 between the switching device 700 and the second indoor heat exchanger 122, and the first pipe 610 between the outdoor heat exchanger 130 and the switching device 700 is connected to the second pipe 620 between the suction pipe 182 and the switching device 700.

[0093] In the present embodiment, it is understood that the window air conditioner also has a controller, and the controller is electrically connected to the first valve 510, the second valve 520 and the switching device 700, so as to control the switching state of the switching device 700 and the switch and opening of each valve. The switching device 700 can be a four-way valve or other switching device 700 that prevents the refrigerant from entering the outdoor heat exchanger 130 and the second indoor heat exchanger 122 at the same time. Through the switching device 700, the function of the air conditioner can be increased. It is understood that the switching device 700 is connected in series to the first pipe 610 and the second pipe 620, that is, the two ends of the switching device 700 are connected to the first pipe 610, and the two ends are connected to the second pipe 620.

[0094] When the switching device 700 is in the first switching state, the high-temperature refrigerant flowing out of the discharge pipe 181 of the compressor 180 flows to the outdoor heat exchanger 130 through the first pipe 610, and then flows into the first indoor heat exchanger 121 and the second indoor heat exchanger 122 in sequence, and finally flows back to the compressor 180 through the second pipe 620 and the suction pipe 182. By controlling the opening of the first valve 510 and the second valve 520, the first indoor heat exchanger 121 can be controlled to be in a cooling state or a heating state, so that the entire system can be controlled to be in a constant temperature dehumidification mode or a full refrigeration system. The first valve 510 and the second valve 520 control whether the first indoor heat exchanger 121 is in a cooling state or a heating state, which is similar to the above-mentioned embodiment without a switching state, and will not be repeated here.

[0095] When the switching device 700 is in the second switching state, the high-temperature refrigerant flowing out of the discharge pipe 181 of the compressor 180 flows into the second indoor heat exchanger 122 through the first pipe 610 and the second pipe 620, then flows to the first indoor heat exchanger 121 and the outdoor heat exchanger 130, and finally flows back to the compressor 180 through the first pipe 610, the second pipe 620 and the suction pipe 182. By controlling the opening of the first valve 510 and the second valve 520, the first indoor heat exchanger 121 can be controlled to be in the cooling state or the heating state, thereby controlling whether the entire system is in the constant temperature dehumidification mode or in the full heating state.

[0096] When the full heating mode is turned on, the switching device 700 is in the second switching state, and the high-temperature refrigerant flowing out of the discharge pipe 181 of the compressor 180 flows into the second indoor heat exchanger 122 through the first pipe 610 and the second pipe 620. At this time, the second indoor heat exchanger 122 plays the role of condenser heating, so that the high-temperature refrigerant from the second indoor heat exchanger 122 reaches the second valve 520. At this time, the second valve 520 is fully opened, and the high-temperature refrigerant continues to flow out to the first indoor heat exchanger 121. The first indoor heat exchanger 121 plays the role of reheating. After the second high-temperature refrigerant reaches the first valve 510, the first valve 510 can play the role of capillary throttling. After throttling, the refrigerant becomes a low-temperature refrigerant, flows through the outdoor heat exchanger 130 and returns to the compressor 180. In this way, the purpose of rapid indoor heating can be achieved.

[0097] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A window air conditioner, characterized in that: The window air conditioner comprises: a housing comprising an indoor portion and an outdoor portion; and A fresh air shell, the fresh air shell is installed in the casing, the fresh air shell is configured with a fresh air inlet located in the outdoor part, and a fresh air outlet located in the indoor part, a fresh air duct connecting the fresh air inlet and the fresh air outlet is formed inside the fresh air shell, and the fresh air duct is suitable for delivering air from the outdoor environment into the indoor environment; Wherein, the fresh air duct comprises an air inlet section corresponding to the fresh air inlet, and an air outlet section corresponding to the fresh air outlet, and the ventilation cross-sectional area of ​​the air outlet section is smaller than the ventilation cross-sectional area of ​​the air inlet section; The chassis structure of the housing is formed with a water receiving groove corresponding to the indoor part of the housing, and the bottom shell of the fresh air housing is formed with a convex portion at a position corresponding to the water receiving groove, and the convex portion is matched with the water receiving groove; The chassis structure is formed with a sink corresponding to the outdoor heat exchanger of the window air conditioner, the chassis is formed with a first boss between the sink and the water receiving tank, the bottom shell of the fresh air shell is formed with a first recess at a position corresponding to the first boss, and the first recess is matched with the first boss; The bottom plate is further configured with a second boss between one side of the sink and the first boss, the second boss being higher than the first boss, the bottom shell of the fresh air housing is formed with a second recess at a position corresponding to the sink, the second recess is supported by the second boss, and the bottom shell of the fresh air housing is spaced apart from the bottom of the sink; The portion of the fresh air shell corresponding to the air inlet section is matched with the sink, and the portion of the fresh air shell corresponding to the air inlet section is located above the bottom of the sink.

2. The window air conditioner according to claim 1, characterized in that: The window air conditioner further comprises an indoor heat exchanger installed in the indoor part; the air outlet section comprises a first air outlet portion connected to the air inlet section and extending in a horizontal direction, and a second air outlet portion connected to the first air outlet portion and extending in a longitudinal direction; Part of the first air outlet is located below the indoor heat exchanger, and part of the second air outlet is located on the air inlet side of the indoor heat exchanger.

3. The window air conditioner according to claim 2, characterized in that: The portion of the fresh air housing corresponding to the first air outlet is arranged in a flat shape, so that the portion of the fresh air housing corresponding to the first air outlet is embedded between the bottom plate of the housing and the bottom of the indoor heat exchanger.

4. The window air conditioner according to claim 2, characterized in that: The casing is configured with an indoor air inlet on the front side of the indoor part, and an outdoor air outlet on the top surface corresponding to the indoor part; the fresh air outlet of the fresh air casing is configured on the side wall of the second air outlet part, and the fresh air outlet is suitable for supplying air to the air inlet side of the indoor heat exchanger or to the indoor air inlet.

5. The window air conditioner according to any one of claims 1 to 4, characterized in that: The air inlet section includes an air inlet portion arranged in a cylindrical shape, and an air guide portion connecting the air inlet portion and the air outlet section, and a ventilation cross section of the air guide portion is arranged in a tapered shape from the air inlet portion to the air outlet section.

6. The window air conditioner according to claim 5, characterized in that: The window air conditioner further comprises a fresh air blower, and the fresh air blower is installed in the air inlet portion of the air inlet section.

7. The window air conditioner according to claim 5, characterized in that: The fresh air shell includes a bottom shell and a shell cover covering the bottom shell. The top wall of the shell cover is constructed with an air guide wall at a portion corresponding to the air guide portion. The air guide wall is arranged in an arc shape from top to bottom so that the air guide portion is arranged in a tapered shape.

8. The window air conditioner according to claim 7, characterized in that: The shell cover is provided with a bulge upwardly protruding at a portion corresponding to the air outlet section, the bulge is close to the air guide wall, and the shell cover is provided with an installation groove corresponding to the installation of the indoor heat exchanger of the window air conditioner on a side of the bulge away from the air guide portion.

9. The window air conditioner according to claim 8, characterized in that: The shell cover is formed with a capacity expansion groove on the inner side of the convex bump, and the capacity expansion groove is connected to the air guide portion.

10. The window air conditioner according to claim 1, wherein: A support frame is protrudingly provided on the lower surface of the second recessed portion, and the support frame is suitable for being supported by the bottom of the sink trough to support the fresh air shell.

11. The window air conditioner according to claim 10, wherein: The window air conditioner further comprises a water receiving tray installed on the water receiving groove, one end of the water receiving tray extends to the top of the fresh air shell and corresponds to the upper surface above the fresh air shell.

12. The window air conditioner according to claim 11, wherein: The window air conditioner also includes a pad arranged in the water receiving groove, which is located on one side of the fresh air shell and is flush with the part of the fresh air shell located in the water receiving groove, so as to cooperate with the part of the fresh air shell located in the water receiving groove to support the water receiving tray.

13. The window air conditioner according to claim 12, wherein: The water receiving tray is configured with a drainage groove, which extends from the water receiving tray toward the sink to drain water to the sink of the bottom tray.

14. The window air conditioner according to any one of claims 1 to 4, characterized in that: An indoor air inlet is provided on the front side of the casing, and the window air conditioner also includes an indoor side heat exchanger, and the indoor heat exchanger includes a first indoor heat exchanger and a second indoor heat exchanger arranged corresponding to the indoor air inlet. The window air conditioner has a constant temperature dehumidification mode. In the constant temperature dehumidification mode, one of the first indoor heat exchanger and the second indoor heat exchanger is in a heating state, and the other is in a cooling state.

15. The window air conditioner according to claim 14, wherein: The first indoor heat exchanger and the second indoor heat exchanger are stacked along the air inlet direction of the indoor air inlet; or, The first indoor heat exchanger and the second indoor heat exchanger are arranged side by side in an air inlet direction perpendicular to the indoor air inlet.

16. The window type air conditioner according to claim 15, characterized in that: The window air conditioner also includes an outdoor heat exchanger, a refrigerant circulation pipeline, a first valve and a second valve; The refrigerant outlet of the compressor of the window air conditioner is provided with a discharge pipe, and the refrigerant inlet is provided with a suction pipe; The discharge pipe, the outdoor heat exchanger, the first indoor heat exchanger, the second indoor heat exchanger, and the suction pipe are connected in sequence through the refrigerant circulation pipeline; The first valve is connected in series to the refrigerant circulation pipeline between the outdoor heat exchanger and the first indoor heat exchanger, and the second valve is connected in series to the refrigerant circulation pipeline between the first indoor heat exchanger and the second indoor heat exchanger.

17. The window air conditioner according to claim 16, wherein: The refrigerant circulation pipeline includes a first pipe connecting the discharge pipe and the outdoor heat exchanger, and a second pipe connecting the suction pipe and the second indoor heat exchanger; the window air conditioner also includes a switching device; The switching device is connected in series to the first pipe and the second pipe, and the switching device has a first switching state and a second switching state; In the first switching state, the first pipe connected to both ends of the switching device is conductive, and the second pipe connected to both ends of the switching device is conductive; In the second switching state, the first pipe between the discharge pipe and the switching device is connected to the second pipe between the switching device and the second indoor heat exchanger, and the first pipe between the outdoor heat exchanger and the switching device is connected to the second pipe between the suction pipe and the switching device.

18. The window type air conditioner according to claim 17, wherein: The window air conditioner further comprises a controller, wherein the controller is electrically connected to the switching device, the first valve and the second valve; When the window air conditioner is in a constant temperature dehumidification mode, the controller is used to control the switching device to be in a first switching state, and to control the first valve to be fully opened and the second valve to be partially opened; and / or, The window air conditioner also has a full cooling mode. When the window air conditioner is in the full cooling mode, the controller is used to control the switching device to be in a first switching state, and to control the first valve to be partially opened and the second valve to be fully opened; and / or, The window air conditioner also has a full heating mode. When the window air conditioner is in the full heating mode, the controller is used to control the switching device to be in a second switching state, and to control the second valve to be fully opened and the first valve to be partially opened.

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