CN211650517U

CN211650517U - Window type air conditioner

Info

Publication number: CN211650517U
Application number: CN202020159431.3U
Authority: CN
Inventors: 周俊华
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2020-02-01
Filing date: 2020-02-01
Publication date: 2020-10-09
Anticipated expiration: 2030-02-01

Abstract

The utility model discloses a window type air conditioner, including chassis and new trend device, the new trend device is installed on the chassis, and be used for to indoor transport new trend, the new trend device includes from outdoor to the indoor new trend shell that extends, the new trend shell be equipped with outdoor intercommunication the new trend entry, with the new trend export of indoor intercommunication and the new trend wind channel of intercommunication new trend entry and new trend export, the new trend shell has the air inlet section of neighbouring new trend entry, the air-out section of neighbouring new trend export, and locate the changeover portion between air inlet section and the air-out section, the biggest draught area of changeover portion is greater than the biggest draught area of air inlet section and air-out section, so that the minimum velocity of flow of air in the changeover portion is less than the velocity of flow at the changeover portion both ends. The utility model provides an among the window formula air conditioner, after outdoor side air got into the air inlet section, the bigger changeover portion of draught area flowed through reduced the whole wind speed in the new trend wind channel, reduced the windage in the whole new trend wind channel, reduced the loss of amount of wind, noise abatement.

Description

Window type air conditioner

Technical Field

The utility model relates to an air conditioning technology field, in particular to window type air conditioner.

Background

In the life, people have more and more requirements on fresh air, and a PTAC (Packaged Terminal air conditioner) window air conditioner has a strong demand as a refrigeration system which is most frequently used in middle-high hotel hotels in the U.S. market. Therefore, a fresh air duct communicated with the indoor space and the outdoor space can be arranged in the window type air conditioner, so that the ventilation requirement of people when using the window type air conditioner is met. However, the window type air conditioner is small in size, and the indoor side and the outdoor side of the air conditioner are both required to be provided with corresponding heat exchange air channels and air inlets and air outlets, so that the positions of the fresh air inlet and the fresh air outlet which can be formed in the front side and the rear side of the air conditioner are limited, and the fresh air inlet and the fresh air outlet of the fresh air channel are usually small in area. On this basis, in order to satisfy the air volume demand of fresh air ventilation, probably need provide great wind speed, and this will lead to that the windage is great in the new trend wind channel, the amount of wind loss is big, and produces the noise easily.

The above is only for the purpose of assisting understanding of the technical solution of the present invention, and does not represent an admission that the above is the prior art.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a window type air conditioner, which solves one or more of the above problems.

In order to achieve the above object, the present invention provides a window type air conditioner comprising:

a chassis;

the new trend device, install in the chassis, and be used for to indoor new trend of carrying, the new trend device includes the new trend shell that extends from outdoor to indoor, the new trend shell be equipped with outdoor intercommunication the new trend entry, with the new trend export and the intercommunication of indoor intercommunication the new trend entry reaches the new trend wind channel of new trend export, the new trend shell has the neighbouring the air inlet section of new trend entry, neighbouring the air-out section of new trend export and locate the air inlet section with the changeover portion between the air-out section, the biggest draught area of changeover portion is greater than the air inlet section reaches the biggest draught area of air-out section, so that the air current is in minimum velocity of flow in the changeover portion is less than the velocity of flow at changeover portion both ends.

In one embodiment, the ratio of the maximum ventilation area S of the transition section to the maximum ventilation area S1 of the air inlet section is greater than 1.4 and less than 1.6; and/or the presence of a gas in the gas,

and the ratio of the maximum ventilation area S of the transition section to the maximum ventilation area S2 of the air outlet section is more than 3.5 and less than 4.

In one embodiment, the transition section includes an expansion area and a supercharging area connected with each other, the expansion area is in butt joint with the air inlet section, the supercharging area is in butt joint with the air outlet section, the expansion area is arranged in a gradually expanding manner from the air inlet section to the supercharging area, and the supercharging area is arranged in a gradually contracting manner from the expansion area to the air outlet section.

In an embodiment, the chassis has along first border and the second border of fore-and-aft direction extension, the cross-section in new wind channel is followed first border is to the distance that the second border direction extends is the cross-sectional width, the cross-sectional height of air inlet section is greater than the air-out section, the cross-sectional width of air-out section is greater than the air inlet section, the cross-sectional height of changeover portion is from the air inlet section to the air-out section is the diminishing setting at least partially, just the cross-sectional width of changeover portion is from the air inlet section to the air-out section is the crescent setting at least partially.

In one embodiment, the cross-sectional height of the air inlet section is H1, the cross-sectional height of the air outlet section is H2, and the ratio of H1 to H2 is greater than 4.1 and less than 5.1; and/or the presence of a gas in the gas,

the cross-sectional width of air inlet section is L1, the cross-sectional width of air outlet section is L2, and the ratio between L1 and L2 is greater than 0.48 and is less than 0.58.

In an embodiment, the top wall of the transition section is at least partially convexly curved.

In one embodiment, the radius of curvature R of the top wall in the transition section is greater than 160mm and less than 200 mm.

In one embodiment, the ratio of the extension length D2 of the transition section in the air supply direction of the fresh air duct to the extension length D1 of the air inlet section in the air supply direction is greater than 1.4 and less than 1.6.

In one embodiment, the fresh air shells comprise a plurality of fresh air shells, the plurality of fresh air shells are spliced with one another to form the fresh air duct, a splicing line is formed on the outer wall surface of each two adjacent fresh air shells on the splicing surface, and the splicing line extends along the air supply direction of the fresh air duct.

In one embodiment, the splicing line is bent along the air supply direction.

In an embodiment, two adjacent fresh air shells have first concatenation face and the second concatenation face of mutual concatenation between the fresh air shell, be equipped with the boss on the first concatenation face, be equipped with on the second concatenation face with the recess of boss looks adaptation, the boss with the recess is all followed the air supply direction extends, just the boss correspond the scarf joint in the recess.

In one embodiment, a sealing device is arranged between the splicing surfaces of two adjacent fresh air shells.

In one embodiment, the plurality of fresh air shells comprise an upper fresh air shell and a lower fresh air shell, and the upper fresh air shell and the lower fresh air shell are stacked up and down.

In one embodiment, the side walls of the upper fresh air shell and the lower fresh air shell are respectively provided with a connecting structure which protrudes outwards, so that the upper fresh air shell and the lower fresh air shell are fixedly connected through the connecting structures.

In an embodiment, connection structure includes spiro union installation department and joint installation department, the spiro union installation department with joint installation department locates fresh air shell is in the ascending both sides of air supply direction, the spiro union installation department is located including the branch go up fresh air shell with last mounting panel and lower mounting panel on the fresh air shell down, go up the mounting panel with the lower mounting panel spiro union, the joint installation department is located including the branch go up fresh air shell with the fixture block and the buckle of fresh air shell down, the fixture block with the buckle joint.

In an embodiment, the fresh air device further comprises a fresh air fan, and the fresh air fan is arranged at the fresh air inlet.

In one embodiment, the window air conditioner further comprises an indoor air duct shell and an indoor side heat exchanger, the indoor air duct shell is installed on the front side of the chassis, an indoor side air duct is formed in the indoor air duct shell, the indoor side heat exchanger is installed on the chassis and is arranged corresponding to an air inlet end of the indoor side air duct, the tail end of the air outlet section forms the fresh air outlet, and the fresh air outlet is arranged close to the windward side of the indoor side heat exchanger.

In one embodiment, the air outlet section of the fresh air casing is at least partially located between the lower end of the indoor air duct casing and the chassis.

In one embodiment, the window type air conditioner further comprises a shell mounted on the chassis, the indoor air duct shell and the indoor side heat exchanger are located in the shell, and an indoor air inlet is formed in the front side wall surface of the shell;

the tail end of the air outlet section is positioned on the outer side of the front side wall surface of the shell, and the fresh air outlet is arranged adjacent to the indoor air inlet; alternatively, the first and second electrodes may be,

the indoor side heat exchanger with the preceding lateral wall of casing personally submits the interval setting, the end of air-out section is located indoor side heat exchanger with between the preceding lateral wall face of casing, just the new trend export with indoor side wind channel is linked together.

In one embodiment, the opening of the fresh air outlet is arranged upwards; alternatively, the first and second electrodes may be,

the opening of new trend export sets up forward.

In an embodiment, the window air conditioner further includes a casing installed on the chassis, the indoor air duct casing and the indoor side heat exchanger are located in the casing, an indoor air inlet is formed in a front side wall of the casing, the indoor side heat exchanger includes a first indoor heat exchanger and a second indoor heat exchanger which are arranged corresponding to the indoor air inlet, the window air conditioner has a constant temperature dehumidification mode, and 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 one is in a cooling mode.

In one embodiment, the first indoor heat exchanger and the second indoor heat exchanger are arranged in a stacked manner along the air inlet direction of the indoor air duct; alternatively, the first and second electrodes may be,

the first indoor heat exchanger and the second indoor heat exchanger are arranged side by side in the air inlet direction perpendicular to the indoor side air duct, so that one part of air flow entering from the indoor air inlet is blown to the first indoor heat exchanger, and the other part of air flow is blown to the second indoor heat exchanger.

In one embodiment, the window type air conditioner further comprises an outdoor heat exchanger, a refrigerant circulation pipeline, a first valve and a second valve;

a discharge pipe is arranged at a refrigerant outlet of a compressor of the window type air conditioner, and a suction pipe is arranged at a refrigerant inlet;

the discharge pipe, the outdoor heat exchanger, the first indoor heat exchanger, the second indoor heat exchanger and the suction pipe are communicated in sequence through the refrigerant circulating pipeline;

the first valve is connected in series on a refrigerant circulation pipeline between the outdoor heat exchanger and the first indoor heat exchanger, and the second valve is connected in series on the refrigerant circulation pipeline between the first indoor heat exchanger and the second indoor heat exchanger.

In one embodiment, 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 type air conditioner also comprises a switching device;

the switching device is connected in series to the first pipe and the second pipe, and 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 conducted, and the second pipe connected to both ends of the switching device is conducted;

in the second switching state, the first pipe between the discharge pipe and the switching device is communicated with 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 communicated with the second pipe between the suction pipe and the switching device.

In one embodiment, the window type air conditioner further comprises a controller electrically connected with the switching device, the first valve and the second valve;

when the window type air conditioner is in a constant temperature dehumidification mode, the controller is used for controlling the switching device to be in a first switching state and controlling the first valve to be fully opened and the second valve to be partially opened; and/or the presence of a gas in the gas,

the window type air conditioner is also provided with a full-refrigeration mode, and when the window type air conditioner is in the full-refrigeration mode, the controller is used for controlling the switching device to be in a first switching state, and controlling the first valve to be partially opened and the second valve to be fully opened; and/or the presence of a gas in the gas,

the window type air conditioner also has a full heating mode, and when the window type air conditioner is in the full heating mode, the controller is used for controlling the switching device to be in the second switching state and controlling the second valve to be fully opened and the first valve to be partially opened.

The utility model provides a window type air conditioner, including chassis and new trend device, the new trend device includes from outdoor to the new trend shell of indoor extension, the new trend shell be equipped with outdoor intercommunication the new trend entry, with the new trend export of indoor intercommunication and the new trend wind channel of intercommunication new trend entry and new trend export, the new trend shell has the air inlet section of neighbouring new trend entry, the air-out section of neighbouring new trend export and locates the changeover portion between air inlet section and the air-out section, the biggest draught area of changeover portion is greater than the biggest draught area of air inlet section and air-out section, so that the air current is in minimum velocity of flow in the changeover portion is less than the velocity of flow at the changeover portion both ends. The utility model provides an among the window formula air conditioner, after outdoor side air got into the air inlet section, the bigger changeover portion of draught area has been flowed through, has reduced the whole wind speed in the new trend wind channel, reduces the windage in the whole new trend wind channel to reduce air loss, noise reduction.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic perspective view of a window type air conditioner according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of the window air conditioner of FIG. 1; wherein the housing is removed;

FIG. 3 is a schematic perspective view of the window air conditioner of FIG. 2 at another angle;

FIG. 4 is a schematic top view of the window air conditioner of FIG. 2 after it has been set in position;

FIG. 5 is a left side view of the window air conditioner of FIG. 2;

FIG. 6 is a schematic view of the assembly structure of the base plate, the fresh air device and a portion of the indoor air duct casing of the window air conditioner in FIG. 2;

FIG. 7 is a schematic perspective view of the window air conditioner of FIG. 6 at another angle;

FIG. 8 is a schematic perspective view of a fresh air device of the window air conditioner of FIG. 2;

FIG. 9 is a schematic perspective view of the new wind device of FIG. 8 at another angle;

FIG. 10 is a left side view of the fresh air device of FIG. 8;

FIG. 11 is a top view of the fresh air device of FIG. 8;

FIG. 12 is a cross-sectional view of the fresh air device of FIG. 10;

FIG. 13 is a cross-sectional view of the fresh air device of FIG. 8;

FIG. 14 is an enlarged schematic view at A of FIG. 13;

FIG. 15 is an exploded perspective view of the air freshener of FIG. 8;

FIG. 16 is an exploded perspective view of the new wind device of FIG. 8 from another angle;

FIG. 17 is an enlarged schematic view at B of FIG. 16;

FIG. 18 is a schematic structural view of another embodiment of a window type air conditioner according to the present invention;

fig. 19 is a schematic structural view of another embodiment of the window type air conditioner of the present invention.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied.

The utility model provides a window formula air conditioner.

In the embodiment of the present invention, as shown in fig. 1 to 7, this window type air conditioner includes a chassis 100 and a fresh air device 400, the fresh air device 400 is installed on the chassis 100, and is used for conveying fresh air to indoor, the fresh air device 400 includes a fresh air shell 410 extending from outdoor to indoor, the fresh air shell 410 is provided with a fresh air inlet 411 communicating with outdoor, a fresh air outlet 412 communicating with indoor, and a fresh air duct 413 communicating with the fresh air inlet 411 and the fresh air outlet 412, the fresh air shell 410 has an air inlet section 415 adjacent to the fresh air inlet 411, an air outlet section 414 adjacent to the fresh air outlet 412, and a transition section 416 disposed between the air inlet section 415 and the air outlet section 414, the maximum ventilation area of the transition section 416 is greater than the maximum ventilation areas of the air inlet section 415 and the air outlet section 414, so that the lowest flow velocity of the air flow in the transition section 416 is less than the.

The base pan 100 provides mounting and support for the internal structure of a window air conditioner. The window type air conditioner further includes a housing 500, and the housing 500 is mounted to the base pan 100 such that the housing 500 and the base pan 100 form an outer frame of the entire window type air conditioner indoor unit, and the components of the window type air conditioner are mounted in a receiving space formed by the housing 500 and the base pan 100. The shape of the housing 500 may be square, cylindrical, etc., and may be selected according to specific use requirements, and is not particularly limited herein. Typically, the housing 500 is generally square in shape for ease of manufacture and molding. An indoor air duct shell 200 and an outdoor air duct shell are provided in the casing 500, the indoor air duct shell 200 is installed at the front side of the chassis 100, and an indoor air duct 210 is formed in the indoor air duct shell 200. The indoor heat exchanger 300 is installed on the base plate 100 and is disposed corresponding to an air inlet end of the indoor air duct 210. The indoor heat exchanger 300 may be installed in the indoor air duct casing 200, or may be installed at a position outside the indoor air duct casing 200 corresponding to the air inlet end of the indoor air duct 210, so that only the airflow blown out from the indoor air duct 210 is the airflow after heat exchange by the indoor heat exchanger 300. The outdoor air duct shell is located at the rear side of the chassis 100, an outdoor air duct is formed in the outdoor air duct shell, and an outdoor fan and an outdoor heat exchanger 700 are arranged in the outdoor air duct and used for driving outdoor air to enter the outdoor air duct to dissipate heat of the outdoor heat exchanger 700. The rear side wall of the casing 500 is provided with an outdoor air inlet and a fresh air inlet, and the fresh air inlet is communicated with the fresh air inlet 411.

The casing 500 is provided with an indoor air inlet 510 and an indoor air outlet, an air inlet end of the indoor air duct 210 is communicated with the indoor air inlet 510, and an air outlet end of the indoor air duct 210 is communicated with the indoor air outlet. Both the indoor air inlet 510 and the indoor air outlet may be formed on the front sidewall of the housing 500. Or the indoor intake vent 510 is located at the front side wall surface of the housing 500 and the indoor exhaust vent is located at the top surface of the housing 500. The indoor air outlet can also be located at the junction of the front side wall surface and the top surface of the casing 500. An indoor fan, which may be a centrifugal fan or a cross-flow fan, may also be disposed in the indoor air duct 210. Fresh air and indoor airflow are introduced from the indoor air inlet 510 by the indoor fan, and then flow through the indoor air duct 210 after heat exchange by the indoor heat exchanger 300, and are blown out from the indoor air outlet.

In this embodiment, the fresh air inlet 411 and the fresh air outlet 412 may be rectangular, circular, elongated, or oval, or may be a plurality of micro-holes, which is not limited herein. The fresh air device 400 may further comprise a fresh air blower for directing the air flow from the fresh air inlet 411 to the fresh air outlet 412. In an embodiment, the fresh air fan is disposed at the fresh air inlet 411, and the fresh air fan may be an axial flow wind wheel, a cross flow wind wheel, or a centrifugal wind wheel, so long as it can promote the airflow to flow from the fresh air inlet 411 to the fresh air outlet 412, thereby ensuring the air output of the fresh air device 400. In other embodiments, the fresh air inlet 411 may be communicated with an outdoor air duct, and an outdoor fan may be used to blow the outdoor air flow into the fresh air duct 413 and out of the fresh air outlet 412. It can be understood that the fresh air case 410 extends from the outdoor to the indoor, that is, the fresh air case 410 extends from one side of the outdoor air duct case to one side of the indoor air duct case 200. Thus, the fresh air inlet 411 of the fresh air shell 410 on one side of the outdoor air duct shell is communicated with the outdoor, the fresh air outlet 412 of the fresh air shell 200 on one side of the indoor air duct shell is communicated with the indoor, and outdoor air flow is directly introduced into the indoor through the independent fresh air duct 413. It should be noted that the fresh air outlet 412 is communicated with the indoor space, which means that the airflow blown out from the fresh air is directly blown into the indoor space, rather than being blown into the indoor air duct 210, and is indirectly blown into the indoor space through the indoor air duct 210.

It is clear to those skilled in the art that the window type air conditioner itself has a small size, the space in the housing 500 is limited, and the indoor side and the outdoor side of the air conditioner itself need to be provided with corresponding indoor side structures such as the indoor side air duct 210, the indoor heat exchanger, the indoor side wind wheel, and the like, and outdoor side structures such as the outdoor side air duct, the outdoor side heat exchanger, the outdoor side wind wheel, and the like, so that the positions where the fresh air inlet 411 and the fresh air outlet 412 can be opened on the front side and the rear side of the air conditioner are limited, and the areas of the fresh air inlet 411 and the fresh air outlet. On this basis, in order to satisfy the ventilation air volume demand of new trend, ensure great amount of wind, need provide great wind speed usually, and too big wind speed will lead to that the interior friction windage of new trend wind channel 413 is great, the air loss is big, and produces the noise easily.

Therefore, in order to ensure the ventilation of the fresh air device 400, the fresh air casing 410 in this embodiment has a transition section 416, and the maximum ventilation area of the transition section 416 is larger than the maximum ventilation areas of the air inlet section 415 and the air outlet section 414, so that the minimum flow velocity of the air flow in the transition section 416 is smaller than the flow velocity at the two ends of the transition section 416. Thus, when the outdoor air enters the air inlet section 415 through the fresh air inlet 411, the outdoor air has a large flow velocity and then flows into the transition section 416, and because the ventilation area of the transition section 416 is large, the flow velocity of the air flow in the transition section 416 is reduced, and then the air flow enters the air outlet section 414 and finally flows out from the fresh air outlet 412. In this embodiment, the transition section 416 of the fresh air shell 410 is disposed to utilize the space between the indoor air duct 210 and the outdoor air duct of the window air conditioner, so as to increase the air passing area of the fresh air duct 413 locally and reduce the overall wind speed in the fresh air duct 413. As understood by those skilled in the art, the frictional wind resistance in the air duct is in direct proportion to the wind speed, and the wind resistance in the whole fresh air duct 413 can be reduced by reducing the whole wind speed in the air duct, so that the wind loss and the noise are reduced.

On the basis of the above embodiment, a certain ratio exists between the maximum ventilation area of the transition section 416 and the maximum ventilation areas of the air inlet section 415 and the air outlet section 414, and when the maximum ventilation area of the transition section 416 is too large, the wind speed may be too low, and the ventilation volume of the fresh air duct 413 cannot be ensured. And the maximum ventilation area of the transition section 416 is too small, so that the effects of reducing wind speed and wind resistance and noise cannot be achieved. When the ratio of the maximum ventilation area S of the transition section 416 to the maximum ventilation area S1 of the air inlet section 415 of the ventilation air volume is greater than 1.4 and less than 1.6, and/or the ratio of the maximum ventilation area S of the transition section 416 to the maximum ventilation area S2 of the air outlet section 414 is greater than 3.5 and less than 4, the ventilation air volume is large, the noise is small, and the ventilation effect is good.

In one embodiment, referring to fig. 8-11, the transition section 416 includes a flared section 416a and a plenum section 416b connected together, the flared section 416a is connected to the inlet section 415, the plenum section 416b is connected to the outlet section 414, the flared section 416a is disposed in a diverging manner from the inlet section 415 to the plenum section 416b, and the plenum section 416b is disposed in a converging manner from the flared section 416a to the outlet section 414. In the present embodiment, the flared region 416a of the transition section 416 is disposed in a gradually expanding manner from the air intake section 415 to the pressure increasing region 416b, so that when air flows into the transition section 416 from the air intake section 415, the air can flow in a expanding manner through the flared region 416a, thereby effectively reducing noise. The supercharging region 416b connects the flared region 416a and the air outlet section 414, so that the air flow flowing into the air outlet section 414 from the flared region 416a can be buffered in the supercharging region 416b by arranging the supercharging region 416b, and the air flow is driven to flow towards the fresh air outlet 412 by the guidance of the supercharging region 416b, so that the air flow flows more smoothly, the wind resistance and the wind loss are reduced, and the noise caused by the sudden size reduction is avoided.

Those skilled in the art understand that the air inlet section 415 and the air outlet section 414 of the fresh air duct 413 are preferably arranged in a manner of being opposite to each other in the front and back direction, and the shape and size are as close as possible, so that the change of the cross section of the fresh air duct 413 can be reduced, and the wind loss can be reduced, but due to the arrangement of the inner chamber structure and the outer chamber structure of the window type air conditioner housing 500, the positions where the air inlet section 415 and the air outlet section 414 can be arranged are limited, and the shape and size of the air inlet section and the. The air intake section 415 is disposed at an outdoor side where space is relatively abundant, and the air outlet section 414 is disposed at an indoor side where space is relatively narrow, and generally speaking, an air passing area of the air intake section 415 is larger than that of the air outlet section 414. In order to avoid the indoor structure and the outdoor structure of the window air conditioner, in this embodiment, please refer to fig. 8 to 11, the height of the cross section of the air inlet section 415 is greater than the height of the cross section of the air outlet section 414, and the width of the cross section of the air outlet section 414 is greater than the width of the cross section of the air inlet section 415. In this embodiment, the cross section of the fresh air duct 413 refers to the cross section of the fresh air duct 413 in the direction perpendicular to the air supply direction, and the cross-sectional height refers to the net size of the inner wall of the fresh air duct 413 in the direction perpendicular to the chassis 100. The chassis 100 has a first edge 101 and a second edge 102 extending in the front-back direction, and the cross-sectional width refers to the distance that the cross section of the fresh air duct 413 extends along the first edge 101 to the second edge 102, and is also the net size between the inner wall surfaces of the fresh air duct 413.

In one embodiment, referring to fig. 8 to 12, the height of the cross section of the transition section 416 is at least partially gradually decreased from the air inlet section 415 to the air outlet section 414, and the width of the cross section of the transition section 416 is at least partially gradually increased from the air inlet section 415 to the air outlet section 414. Thus, the transition section 416 not only serves to locally increase the air passing area, reduce the air speed, and increase the air volume. The air inlet section 415 and the air outlet section 414 with different shapes and sizes can be connected in a gradual change mode, so that the section of the whole fresh air duct 413 is gradually changed along the air supply direction, the local wind resistance caused by sudden change of the size is avoided, the air flow is smoother, and the wind loss and the noise are reduced.

Those skilled in the art will appreciate that the cross-sectional dimensions of the fresh air shell 410 in the air inlet section 415 and the air outlet section 414 are generally substantially constant along the air supply direction, but may also vary locally as desired. In this embodiment, the cross-sectional height and the cross-sectional width of the air inlet section 415 and the air outlet section 414 are both the size of the cross-section of the end of the air inlet section 415 and the air outlet section 414 adjacent to the transition section 416, and when the cross-section is rectangular, the cross-sectional height and the cross-sectional width are the corresponding size of each side of the rectangle, and when the cross-section is irregular, the cross-sectional height is the largest net size of the air duct cross-section in the direction perpendicular to the chassis 100, and the cross-sectional width is the largest net size of the air duct cross-section in the direction from the first edge 101 to the second edge 102 of the chassis 100.

On the basis of the above embodiment, the larger the difference in the sectional dimension between the air inlet section 415 and the air outlet section 414 is, the more adverse the air supply effect is, and the too small difference in the sectional dimension cannot avoid the indoor side structure and the outdoor side structure inside the window type air conditioner. Preferably, referring to fig. 12, the cross-sectional height of the air inlet section 415 is H1, the cross-sectional height of the air outlet section 414 is H2, and the ratio between H1 and H2 is greater than 4.1 and less than 5.1; and/or the cross-sectional width of the air inlet section 415 is L1, the cross-sectional width of the air outlet section 414 is L2, and the ratio of L1 to L2 is greater than 0.48 and less than 0.58. Therefore, the structure of the interior of the window type air conditioner can be well avoided, and meanwhile, the areas of the fresh air inlet 411 and the fresh air outlet 412 are relatively close to ensure the ventilation air volume of the fresh air duct 413.

Specifically, the top wall 421 of the transition section 416 is at least partially configured to be an outwardly convex arc, and preferably, the bending radius R of the top wall 421 in the transition section 416 is greater than 160mm and less than 200 mm. Therefore, the air flow is guided to flow along the arc-shaped ground wall surface, so that the air flow is smoother, the wind resistance and the wind loss are smaller, and the noise can be reduced. And the arc-shaped top surface can be fully attached to the indoor air duct shell 200 outside the fresh air duct 413, so that the internal space of the air conditioner is effectively utilized, and the air conditioner is firmer.

Those skilled in the art understand that when air enters the fresh air duct 413 from the fresh air inlet 411, the air needs to be guided by the air inlet section 415 with a small cross section change, so that the air can avoid an outdoor structure on one hand, and can also play a role in rectification on the other hand. The transition section 416 connected to the air inlet section 415 also needs a certain extension length to reduce the wind speed and stably communicate the air inlet section 415 and the air outlet section 414. When the extension length of the transition section 416 is too long, the length of the air inlet section 415 cannot be ensured, the airflow entering the fresh air duct 413 cannot be fully rectified, the airflow direction is disordered, and the wind speed is reduced too fast, which is not favorable for the airflow to flow to the fresh air outlet 412. When the extension length of the transition section 416 is too short, the wind speed cannot be sufficiently reduced, and the section of the fresh air duct 413 changes too fast, which increases the wind resistance. For this reason, in the present embodiment, the ratio between the extension length D2 of the transition section 416 in the air blowing direction of the fresh air duct 413 and the extension length D1 of the air inlet section 415 in the air blowing direction is greater than 1.4 and less than 1.6. So, can enough fully rectify the air current that gets into new trend entry 411, can avoid the wind channel cross-section to change too fast again, make the wind speed reduce to suitable scope simultaneously, increase the amount of wind, reduce the wind loss, have better ventilation effect. It will be understood by those skilled in the art that the extension length of the air inlet section 415 is the distance from the beginning of the fresh air inlet 411 to the beginning of the widening of the air duct cross-section, and the extension length of the transition section 416 is the distance from the end of the fresh air duct 413 to the point where the air duct cross-section height no longer decreases continuously.

As will be understood by those skilled in the art, the fresh air duct 410 is substantially cylindrical, and the cross section of the fresh air duct 413 changes greatly along the air supply direction. The fresh air case 410 is generally an injection molded part, and if the fresh air case 410 is integrally formed, it can have better sealing performance, but it is difficult to demold during manufacturing. For this reason, in this embodiment, for convenience of manufacturing, please refer to fig. 15 to 17, the fresh air shells 410 are divided into a plurality of pieces, the plurality of fresh air shells 410 are mutually spliced to form the fresh air duct 413, a splicing line 430 is formed on an outer wall surface of the fresh air shell 410 by a splicing surface between two adjacent fresh air shells 410, and the splicing line 430 extends along an air supply direction of the fresh air duct 413. So, can divide into the polylith with the fresh air shell 410 of tube-shape in the footpath, polylith fresh air shell 410 is as an organic whole again after injection moulding respectively to convenient the manufacturing.

On the basis of the above embodiment, the fresh air shell 410 is easily affected by the airflow in the air supply process to vibrate, and meanwhile, because the air inlet end of the fresh air shell 410 is arranged at one side close to the outdoor, and the air outlet section 414 of the fresh air shell 410 is arranged at one side close to the indoor air duct 210, the fresh air shell 410 has a temperature difference in the air supply direction, so that the fresh air shell 410 is easily deformed in the axial direction. And the air in new wind channel 413 is introduced from the outside, and the one end that new wind channel 413 is close to indoor side wind channel 210 is pressed close to indoor side wind channel 210 and is set up, receives the influence of indoor side wind channel 210 internal temperature for the inside and outside difference in temperature of new wind channel 413 is great, takes place radial ascending deformation easily. If concatenation line 430 is smooth sharp setting, two adjacent fresh air shells 410 slide each other easily under the effect of vibrations and deformation on the one hand, lead to fresh air duct 413 to leak out, and on the other hand lacks between two fresh air shells 410 at fresh air duct 413 axial and ascending spacing in week, misplaces each other easily under the effect of vibrations deformation, leads to leaking out. For this purpose, referring to fig. 9, 10, 15 and 16, the splicing line 430 is bent along the air blowing direction. The splicing surface between two adjacent fresh air shells 410 is supported in a limited manner in the axial direction and the circumferential direction of the fresh air duct 413, so that the influence of vibration and deformation on splicing between the fresh air shells 410 is reduced, and the sealing performance of the fresh air duct 413 is improved.

In an embodiment, the splicing line 430 which is bent and arranged has a plurality of straight line segments extending along the air supply direction and an inclined segment connecting the straight line segments, and the included angle between the inclined segment and the air supply direction is preferably not less than 30 degrees and not more than 80 degrees, so that the deformation of the fresh air shell 410 can be better adapted, and the occurrence of air leakage is reduced.

In an embodiment, referring to fig. 14 and 17, a first splicing surface 431 and a second splicing surface 432 are provided between two adjacent fresh air shells 410, the first splicing surface 431 is provided with a boss 4310, the second splicing surface 432 is provided with a groove adapted to the boss 4310, the boss 4310 and the groove both extend along the air blowing direction, and the boss 4310 is embedded in the groove correspondingly. In this embodiment, the first splicing surface 431 and the second splicing surface 432 are oppositely disposed, and the first splicing surface 431 and the second splicing surface 432 are attached to each other, so that two adjacent fresh air shells 410 are assembled together. Through the arrangement of the bosses 4310 and the grooves 4320 on the first splicing surface 431 and the second splicing surface 432, the two adjacent fresh air shells 410 are jointed in a staggered manner in the radial direction of the fresh air duct 413, so that the possibility of through seam generation can be reduced when the fresh air shells 410 are deformed in the radial direction, and the tightness of the fresh air duct 413 is enhanced.

Optionally, a sealing device is arranged between the splicing surfaces of two adjacent fresh air shells 410. The sealing device may be a sealing material, which has the function of isolating the air circulation inside and outside the fresh air duct 413, and may be rubber, for example. Specifically, the air duct may be a sealant, for example, a glass cement, a polyurethane, or other adhesive with a certain adhesiveness and a good deformability may be used, so that the adhesion between the fresh air shells 410 is tighter, and the gap between the fresh air shells 410 is blocked, thereby improving the sealing performance of the fresh air duct 413.

The splicing manner of the plurality of fresh air shells 410 can be various, for example, the fresh air shells are divided into a left side and a right side in the direction from the first edge 101 of the bottom plate to the second edge 102, and the splicing line is arranged on the top wall 421 and the bottom of the air duct. In this embodiment, the plurality of fresh air shells 410 include an upper fresh air shell 401 and a lower fresh air shell 402, and the upper fresh air shell 401 and the lower fresh air shell 402 are stacked up and down. So for it is inseparabler to go up new trend shell 401 and laminate under the effect of gravity with new trend shell 402, promotes sealing performance, and easily assembles.

On the basis of the above embodiment, referring to fig. 15 and fig. 16, the side walls 422 of the upper fresh air casing 401 and the lower fresh air casing 402 are respectively provided with a connecting structure protruding outwards, so that the upper fresh air casing 401 and the lower fresh air casing 402 are connected and fixed through the connecting structure. So, for the new trend shell 410 of controlling the concatenation, the junction between the adjacent new trend shell 410 can set up on the lateral wall 422 of new trend shell 410, and the space of new trend shell 410 side is abundant relatively on the one hand, can avoid the indoor side structure and the outdoor side structure of air conditioner well, and on the other hand also easily assembles new trend shell 410.

Preferably, connection structure includes spiro union installation department and joint installation department, and the both sides of new trend shell 410 on the air supply direction are located to spiro union installation department and joint installation department part, and the spiro union installation department is located last mounting panel 11 and lower mounting panel 12 on new trend shell 401 and the new trend shell 402 down including the part, goes up mounting panel 11 and lower mounting panel 12 spiro union, and the joint installation department is located the fixture block 21 and the buckle 22 of new trend shell 401 and new trend shell 402 down including the part, fixture block 21 and buckle 22 joint. So, can block spacing with buckle 22 with the fixture block 21 between the upper and lower fresh air shell 402 earlier when the equipment, rethread bolted connection can enough guarantee the joint strength between the upper and lower fresh air shell 402, the equipment of being convenient for again, can promote the generation efficiency of air conditioner.

In an embodiment, referring to fig. 2 to 5, a fresh air outlet 412 is formed at the end of the air outlet section 415, and the fresh air outlet 412 is disposed adjacent to the windward side of the indoor side heat exchanger 300. Through making the setting of new trend export 412 neighbouring indoor side heat exchanger 300's windward side, then when the new trend dehumidification, can utilize indoor side heat exchanger 300 to dehumidify, need not set up the new trend evaporimeter in addition, then greatly reduced manufacturing cost, improved the efficiency. And the air current that blows out from new trend export 412 can flow through indoor side heat exchanger 300 immediately and inhale indoor side wind channel 210 in, blow off by indoor air outlet again, thereby most fresh air that does not dehumidify before with indoor air current intensive mixing, can dehumidify through indoor side heat exchanger 300 earlier, then blow in indoorly, the circulation route of fresh air has been reduced greatly, reduce the mixing ratio of fresh air that does not pass through the dehumidification and indoor wind, make the influence of fresh air to indoor temperature and humidity littleer, thereby user's comfort in use is better. Whether the window type air conditioner needs to start the dehumidification mode or not is judged, and the dehumidification mode can be judged through an indoor temperature sensing device and a humidity sensing device.

Further, referring to fig. 2 and 7, since the indoor duct housing 200 requires a sufficient space, the indoor duct housing 200 and the indoor structure are generally adapted to the length of the chassis 100, so as to make the whole structure more compact. The fresh air shell 410 is installed on the base plate 100 and extends from the outdoor to the indoor side, and then the fresh air shell 410 can directly penetrate through the indoor air duct shell 200, and the sealing structure is arranged at the joint of the fresh air shell 410 and the indoor air duct shell 200 to realize sealing. In another embodiment, the air outlet section 414 of the fresh air casing 410 is at least partially located between the lower end of the indoor air duct casing 200 and the bottom plate 100. So that a part of the fresh air case 410 is positioned below the indoor air duct case 200, that is, so that the fresh air case 410 is introduced into the room from below the indoor air duct case 200. Thus, the fresh air case 410 does not interfere with the indoor air duct 210, and it is not necessary to perforate the indoor air duct case 200 and provide a sealing structure, etc., thereby simplifying the manufacturing process and the installation difficulty. Meanwhile, the occupied space of the fresh air shell 410 is reduced, so that the structure of the whole machine is more compact, and the requirement of independent air outlet of fresh air is met without additionally increasing the volume of the whole machine.

On the basis of the above embodiment, further, the fresh air casing 410 located below the indoor air duct casing 200 is spaced from the lower end of the indoor air duct casing 200. It should be noted that the gap between the lower end of the indoor air duct shell 200 and the fresh air duct shell 410 should be minimized under the condition that the gravity of the indoor air duct shell 200 is not transmitted to the fresh air duct shell 410, so that the air leakage phenomenon can be avoided. Typically, the gap between the fresh air casing 410 and the lower end of the indoor air duct casing 200 is made to be less than or equal to 5 mm. Through making the new trend shell 410 and the lower extreme of indoor wind channel shell 200 be the clearance setting, then new trend shell 410 can not the bearing, and then makes new trend shell 410 not fragile. In other embodiments, the fresh air casing 410 may also be in contact with or connected to the indoor air duct casing 200, and thus, a reinforcing rib may be disposed on the fresh air casing 410 or the structural strength of the fresh air casing 410 may be increased, so that the fresh air casing 410 can bear part of the gravity of the indoor air duct casing 200.

In one embodiment, as shown in fig. 1 to 5, the window air conditioner further includes a housing 500 mounted on the base plate 100, the indoor air duct housing 200 and the indoor side heat exchanger 300 are located in the housing 500, and an indoor air inlet 510 is formed on a front side wall surface of the housing 500. The end of the air outlet section 414 is located outside the front side wall of the casing 500, and the fresh air outlet 412 is disposed adjacent to the indoor air inlet 510.

In this embodiment, still be equipped with indoor air outlet on casing 500, indoor air outlet specifically can set up the junction at casing 500's preceding lateral wall face and top surface, makes indoor air outlet to the oblique top air supply, can avoid wind directly to blow user and ceiling on the one hand, and on the other hand makes the air current can blow farther to make mixed flow effect better, and then make indoor temperature distribution more even. The air outlet section 414 of the fresh air casing 410 is arranged outside the casing 500, so that the indoor side heat exchanger 300 can be directly attached to the front side wall surface of the casing 500, and further the air flow entering from the indoor air inlet 510 can directly enter the indoor side heat exchanger 300, and the heat exchange efficiency is improved. And the air outlet section 414 is arranged outside the shell 500, so that the fresh air circulation rate can be improved, and the sufficient fresh air volume can be ensured. The fresh air outlet 412 is arranged close to the indoor air inlet 510, fresh air near the indoor air inlet 510 can be quickly sucked into the shell 500 to be dehumidified and then blown out of the indoor air outlet, and un-dehumidified fresh air cannot be blown to a place far away from the window type air conditioner, so that indoor air in the place far away from the window type air conditioner indoor unit cannot be easily mixed, and further indoor air flow cannot be greatly or hardly influenced.

In another embodiment, the indoor heat exchanger 300 is disposed at a distance from the front side wall of the casing 500, the air outlet 414 is located between the indoor heat exchanger 300 and the front side wall of the casing 500, and the fresh air outlet 412 is communicated with the indoor air duct 210. Through setting up air-out section 414 between the preceding lateral wall face of indoor heat exchanger and casing 500, then the clearance between the preceding lateral wall face of usable indoor side heat exchanger 300 and casing 500 for the new trend air current that air-out section 414 blew out can blow fast and carry out the heat transfer to indoor side heat exchanger 300. That is, indoor wind wheel can inhale indoor wind and the new trend that blows off from new trend export 412 in indoor side wind channel 210 together, and through indoor side wind channel 210 dehumidification, so, not only dehumidify the new trend, reduced the influence of new trend to indoor wind, and make the air current in whole house only can dehumidify to increase dehumidification efficiency. Preferably, the fresh air outlet 412 is disposed toward the windward side of the indoor-side heat exchanger 300. In this way, the entire non-dehumidified airflow blown out from the fresh air outlet 412 can be directly blown toward the indoor-side heat exchanger 300 without being blown into the room, and thus the temperature and humidity in the room are not affected.

The fresh air outlet 412 may be opened in various directions. If the fresh air outlet 412 is disposed toward the windward side of the indoor heat exchanger 300 or the indoor air inlet 510, a large gap needs to be formed between the indoor heat exchanger 300 and the front side wall of the casing 500, or the structure of the air outlet section 414 is complex, so that the overall size is increased to a certain extent. And the fresh air outlet 412 is arranged right opposite to the front side wall surface of the indoor side heat exchanger 300 or the shell 500, so that the wind resistance is large, and the flow rate of fresh air circulation can be reduced. In an embodiment, referring to fig. 1 to 5, the opening of the fresh air outlet 412 is disposed upward, and by disposing the fresh air outlet 412 upward, the gap between the indoor side heat exchanger 300 and the front side wall surface of the casing 500 is fully utilized, the circulation rate of the fresh air is increased, and the fresh air blown out from the fresh air outlet 412 can rapidly enter the indoor side heat exchanger 300 for dehumidification. Thereby reducing the influence of new trend to indoor air current when satisfying new trend intake. In another embodiment, the opening of the fresh air outlet 412 is disposed forward, so that the fresh air flows toward the indoor direction, wherein most of the fresh air is sucked into the indoor side air duct 210 by the indoor side wind wheel, and dehumidifies the fresh air through the indoor side air duct 210. And other fresh air then gets into indoor forward, triggers indoor circulation of air, makes the user feel more obviously that the air is fresh to promote user's experience and feel.

In an embodiment, referring to fig. 2 to 4, the window air conditioner further includes a compressor 600 installed on the base plate 100, and the fresh air device 400 and the compressor 600 are respectively disposed on two sides of the base plate 100 in the length direction. The compressor 600 occupies a large space and has a large weight. Through making new trend device 400 and compressor 600 divide the both sides of establishing on chassis 100 length direction, make the overall arrangement more reasonable on the one hand, wholly arrange compacter, make full use of the installation space on chassis 100, on the other hand for weight distribution on the chassis 100 is more even, prevents to warp because of the inhomogeneous chassis 100 that causes of gravity distribution, and the installation of the complete machine of being convenient for.

In an embodiment, as shown in fig. 3 and 5, the window air conditioner further includes a housing 500 installed on the base plate 100, the indoor air duct housing 200 and the indoor side heat exchanger 300 are located in the housing 500, an indoor air inlet 510 is disposed on a front side wall surface of the housing 500, the indoor side heat exchanger 300 includes a first indoor heat exchanger 310 and a second indoor heat exchanger 320, and the window air conditioner has a constant temperature dehumidification mode in which one of the first indoor heat exchanger 310 and the second indoor heat exchanger 320 is in a heating mode and the other is in a cooling mode.

In the present embodiment, the indoor side heat exchanger 300 has the first indoor heat exchanger 310 and the second indoor heat exchanger 320, and in the constant temperature dehumidification mode, one of the first indoor heat exchanger 310 and the second indoor heat exchanger 320 is in the heating mode, and the other is in the cooling mode. The air current through indoor side heat exchanger 300 can be heated and dehumidified simultaneously, and the mixed wind temperature after heating and dehumidification is suitable, can not have the cool wind impression, can not only dehumidify all indoor wind and new trend again after the reciprocating cycle, and makes the whole indoor temperature of window air conditioner under the dehumidification mode can not descend, can reach the purpose to whole room constant temperature dehumidification. Meanwhile, the indoor heat exchanger 300 can be fully utilized during dehumidification, and a fresh air condenser and a fresh air evaporator are not needed to be additionally arranged, so that the manufacturing cost is greatly reduced.

In an embodiment, referring to fig. 5, the first indoor heat exchanger 310 and the second indoor heat exchanger 320 are stacked along an air inlet direction of the indoor air duct 210. When the first indoor heat exchanger 310 and the second indoor heat exchanger 320 are arranged in a stacked manner along the air inlet direction of the indoor air duct 210, indoor air or fresh air entering from the indoor air inlet 510 is dehumidified/heated by the first indoor heat exchanger 310 and then heated/dehumidified by the second indoor heat exchanger 320, and the indoor fan sends heated and dehumidified air flow into the room from the indoor air outlet, so that the whole room constant-temperature dehumidification is realized. Make first indoor heat exchanger 310 and the range upon range of setting of second indoor heat exchanger 320 along the air inlet direction, then all air currents that blow off from indoor air intake 510 can be heated simultaneously, are dehumidified simultaneously afterwards to need not to make heating and dehumidification divide into two streams of different air currents, reduced the mixing step, make air current temperature and humidity that blow off from indoor air outlet more even, comfortable.

In another embodiment, referring to fig. 3, the first indoor heat exchanger 310 and the second indoor heat exchanger 320 are arranged side by side in the air intake direction perpendicular to the indoor air duct 210, so that a part of the air flow entering from the indoor air inlet 510 blows to the first indoor heat exchanger 310, and another part blows to the second indoor heat exchanger 320.

In this embodiment, the air intake direction of the indoor air duct 210 is generally the front-rear direction. The direction of the vertical air intake direction may be left-right and up-down. So, first indoor heat exchanger 310 and second indoor heat exchanger 320 can be and arrange about or arrange from top to bottom, from the new trend or the indoor wind that indoor air intake 510 got into, partly through first indoor heat exchanger 310 heating/dehumidification, another part is through the dehumidification/heating of second indoor heat exchanger 320, then form the suitable dry air current of temperature after mixing in indoor side wind channel 210, send into indoorly from indoor air outlet with homothermal dry air current by indoor fan again, realize the constant temperature dehumidification in whole house. When the first indoor heat exchanger 310 and the second indoor heat exchanger 320 are vertically arranged, the upper portion of the first indoor heat exchanger 310 and the lower portion of the second indoor heat exchanger 320 can be divided into the first indoor heat exchanger 310 and the second indoor heat exchanger 320 by only arranging one indoor heat exchanger, and one of the upper heat exchanger and the lower heat exchanger is controlled to be in a heat exchange mode and the other is controlled to be in a cooling mode by the control valve. Therefore, the occupied space of the indoor side heat exchanger 300 can be greatly reduced, so that the whole structure is more compact, and the volume of the whole machine is smaller. Through making first indoor heat exchanger 310 and second indoor heat exchanger 320 along arranging about or from top to bottom, can reduce the thickness of indoor side heat exchanger 300 greatly, make full use of casing 500 direction of height's space to reduce the occupation space of indoor side heat exchanger 300, reduce whole machine volume and weight.

In an embodiment, as shown in fig. 18, the window type air conditioner further includes an outdoor heat exchanger 700, a refrigerant circulation pipeline, a first valve 810 and a second valve 820, a discharge pipe 610 is disposed at a refrigerant outlet of the compressor 600 of the window type air conditioner, a suction pipe 620 is disposed at a refrigerant inlet, the discharge pipe 610, the outdoor heat exchanger 700, the first indoor heat exchanger 310, the second indoor heat exchanger 320 and the suction pipe 620 are sequentially communicated through the refrigerant circulation pipeline, the first valve 810 is connected in series to the refrigerant circulation pipeline between the outdoor heat exchanger 700 and the first indoor heat exchanger 310, and the second valve 820 is connected in series to the refrigerant circulation pipeline between the first indoor heat exchanger 310 and the second indoor heat exchanger 320.

In the present embodiment, the compressor 600 may be an inverter type compressor 600 or a fixed frequency type compressor 600. Through making compressor 600 be inverter compressor 600, the realization refrigeration that can be better and constant temperature dehumidification dual system have practiced thrift a compressor 600 to make overall structure simpler, reduce cost and power have improved the efficiency greatly. The first valve 810 and the second valve 820 may be solenoid valves, electronic expansion valves, or throttle valves, and can control the on/off or flow rate of the pipe. By providing the first valve 810 and the second valve 820, it is possible to control whether or not the refrigerant flows into the first indoor heat exchanger 310 and the second indoor heat exchanger 320, and thus to control whether or not the first indoor heat exchanger 310 and the second indoor heat exchanger 320 participate in cooling or heating.

When the dehumidification mode needs to be started, the high-temperature refrigerant flowing out of the compressor 600 enters the outdoor heat exchanger 700 (condenser), so that the high-temperature refrigerant flowing out of the outdoor heat exchanger 700 reaches the first valve 810, at this time, the first valve 810 can be completely or mostly opened, the temperature of the outdoor heat exchanger 700 is equal to or slightly lower than that of the first indoor heat exchanger 310, at this time, the first indoor heat exchanger 310 is a condenser and plays a role in heating air flow, then the second high-temperature refrigerant flowing out of the first indoor heat exchanger 310 reaches the second valve 820, the second valve 820 is partially opened and plays a role in capillary tube throttling, the throttled refrigerant is changed into a low-temperature refrigerant and flows through the second indoor heat exchanger 320, at this time, the second indoor heat exchanger 320 is an evaporator and plays a role in cooling, namely, dehumidification, and the refrigerant flowing out of the second indoor heat exchanger. So, the mixed back part of new trend and indoor wind heats through first indoor heat exchanger 310, and the part is through the dehumidification of the cooling of second indoor heat exchanger 320, gets into the indoor side wind channel 210 and mixes the suitable dry air current of formation temperature, blows off by indoor air outlet afterwards to reach the indoor mesh that can not blow cold wind again of dehumidification promptly, and the dehumidification effect is better. Of course, the first indoor heat exchanger 310 may also be used as an evaporator, and the second indoor heat exchanger 320 may be used as a condenser, so as to achieve the purpose of constant temperature dehumidification.

When dehumidification is not needed and only the full cooling mode is turned on, the high temperature refrigerant flowing out of the compressor 600 enters the outdoor heat exchanger 700 (condenser), so that the high temperature refrigerant from the outdoor heat exchanger 700 reaches the first valve 810, and at this time, a small part of the first valve 810 is opened to perform the capillary throttling function, so that the temperature of the first indoor heat exchanger 310 is greatly lower than that of the outdoor heat exchanger 700, and at this time, the first indoor heat exchanger 310 is an evaporator to perform the cooling function, then, the low temperature refrigerant flowing out of the first indoor heat exchanger 310 reaches the second valve 820, the second valve 820 is fully or mostly opened, and performs a complete passing or re-throttling function, the refrigerant passing through the second valve 820 flows through the second indoor heat exchanger 320, and at this time, the second indoor heat exchanger 320 is an evaporator, which plays a role of cooling for the second time, and the refrigerant flowing out of the second indoor heat exchanger 320 returns to the compressor 600. So, the cooling through first indoor heat exchanger 310 after new trend and the indoor wind mix, then through the secondary cooling of second indoor heat exchanger 320, blow off by indoor air outlet behind the entering indoor side wind channel 210 to can reach indoor rapid cooling's purpose.

In one embodiment, as shown in fig. 19, the refrigerant circulation pipeline includes a first pipe 830 connecting the discharge pipe 610 and the outdoor heat exchanger 700, and a second pipe 840 connecting the suction pipe 620 and the second indoor heat exchanger 320. The window type air conditioner further comprises a switching device 900, wherein the switching device 900 is connected in series to the first pipe 830 and the second pipe 840, and the switching device 900 has a first switching state and a second switching state. In the first switching state, the first pipe 830 connected to both ends of the switching device 900 is conducted, and the second pipe 840 connected to both ends of the switching device 900 is conducted. In the second switching state, the first pipe 830 between the discharge pipe 610 and the switching device 900 and the second pipe 840 between the switching device 900 and the second indoor heat exchanger 320 are connected, and the first pipe 830 between the outdoor heat exchanger 700 and the switching device 900 and the second pipe 840 between the suction pipe 620 and the switching device 900 are connected.

In this embodiment, it can be understood that the window type air conditioner further has a controller, and the controller is electrically connected to the first valve 810, the second valve 820 and the switching device 900, so as to control the switching state of the switching device 900 and the opening and closing of each valve. The switching device 900 may be a four-way valve or other switching device 900 such that the refrigerant does not simultaneously enter the outdoor heat exchanger 700 and the second indoor heat exchanger 320. By the switching device 900, the function of the air conditioner can be increased. It is understood that the switching device 900 is connected in series to the first pipe 830 and the second pipe 840, that is, both ends of the switching device 900 communicate with the first pipe 830 and both ends communicate with the second pipe 840.

When the switching device 900 is in the first switching state, the high-temperature refrigerant flowing out of the discharge pipe 610 of the compressor 600 flows through the first pipe 830 to the outdoor heat exchanger 700, then flows into the first indoor heat exchanger 310 and the second indoor heat exchanger 320 in sequence, and finally flows back to the compressor 600 through the second pipe 840 and the suction pipe 620. By controlling the opening degrees of the first valve 810 and the second valve 820, the first indoor heat exchanger 310 can be controlled to be in a cooling state or a heating state, and the entire system can be controlled to be in a constant temperature dehumidification mode or a refrigeration only system. The first valve 810 and the second valve 820 control the first indoor heat exchanger 310 to be in a cooling state or a heating state, which is similar to the above-mentioned embodiment without switching states, and will not be described herein again.

When the switching device 900 is in the second switching state, the high-temperature refrigerant flowing out of the discharge pipe 610 of the compressor 600 flows into the second indoor heat exchanger 320 through the first pipe 830 and the second pipe 840, then flows into the first indoor heat exchanger 310 and the outdoor heat exchanger 700, and finally flows back to the compressor 600 through the first pipe 830, the second pipe 840, and the suction pipe 620. The opening degree of the first valve 810 and the second valve 820 may be controlled to control whether the first indoor heat exchanger 310 is in a cooling state or a heating state, so as to control whether the entire system is in a constant temperature dehumidification mode or in a heating only state.

When the full heating mode is turned on, the switching device 900 is in the second switching state, the high-temperature refrigerant flowing out of the discharge pipe 610 of the compressor 600 flows into the second indoor heat exchanger 320 through the first pipe 830 and the second pipe 840, at this time, the second indoor heat exchanger 320 plays a role of heating the condenser, so that the high-temperature refrigerant coming out of the second indoor heat exchanger 320 reaches the second valve 820, at this time, the second valve 820 is completely opened, the high-temperature refrigerant continues to flow out to the first indoor heat exchanger 310, the first indoor heat exchanger 310 plays a role of reheating, after the second high-temperature refrigerant reaches the first valve 810, the first valve 810 plays a role of capillary throttling, the throttled refrigerant becomes a low-temperature refrigerant, and returns to the compressor 600 after flowing through the outdoor heat exchanger 220. Therefore, the purpose of indoor rapid heating can be achieved.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A window type air conditioner, comprising:

a chassis;

2. The window air conditioner as set forth in claim 1, wherein the ratio of the maximum ventilation area S of said transition section to the maximum ventilation area S1 of said air intake section is greater than 1.4 and less than 1.6; and/or the presence of a gas in the gas,

3. The window air conditioner of claim 1, wherein said transition section includes an expanded area and a plenum area connected, said expanded area abutting said air intake section, said plenum area abutting said air outlet section, said expanded area being disposed in a diverging manner from said air intake section to said plenum area, said plenum area being disposed in a diverging manner from said expanded area to said air outlet section.

4. The window air conditioner as claimed in claim 1, wherein the base plate has a first edge and a second edge extending in a front-to-rear direction, the cross section of the fresh air duct extends from the first edge to the second edge for a distance of a cross section width, the cross section height of the air inlet section is greater than that of the air outlet section, the cross section width of the air outlet section is greater than that of the air inlet section, the cross section height of the transition section is at least partially gradually reduced from the air inlet section to the air outlet section, and the cross section width of the transition section is at least partially gradually increased from the air inlet section to the air outlet section.

5. The window air conditioner as set forth in claim 4, wherein said air inlet section has a cross-sectional height of H1, said air outlet section has a cross-sectional height of H2, and the ratio between H1 and H2 is greater than 4.1 and less than 5.1; and/or the presence of a gas in the gas,

6. The window air conditioner as set forth in claim 4, wherein said transition section top wall is at least partially arcuately disposed outwardly.

7. The window air conditioner as set forth in claim 6, wherein said transition section inner top wall has a radius of curvature R greater than 160mm and less than 200 mm.

8. The window air conditioner as recited in claim 1 wherein the ratio of the extension D2 of said transition section in the direction of air flow of said fresh air duct to the extension D1 of said air intake section in the direction of air flow is greater than 1.4 and less than 1.6.

9. The window type air conditioner as claimed in claim 1, wherein the fresh air case comprises a plurality of cases, the cases are spliced with each other to form the fresh air duct, a splicing line is formed on an outer wall surface of the case by a splicing surface between two adjacent cases, and the splicing line extends along an air supply direction of the fresh air duct.

10. The window type air conditioner as claimed in claim 9, wherein the splicing line is bent in the blowing direction.

11. The window type air conditioner as claimed in claim 9, wherein a first splicing surface and a second splicing surface are provided between two adjacent fresh air shells, the first splicing surface is provided with a boss, the second splicing surface is provided with a groove adapted to the boss, the boss and the groove both extend along the air supply direction, and the boss is correspondingly embedded in the groove.

12. The window type air conditioner as claimed in claim 9, wherein a sealing means is provided between the joint surfaces of two adjacent fresh air cases.

13. The window type air conditioner as claimed in claim 9, wherein the plurality of fresh air shells include an upper fresh air shell and a lower fresh air shell, the upper fresh air shell and the lower fresh air shell being stacked up and down.

14. The window type air conditioner as claimed in claim 13, wherein the side walls of the upper fresh air case and the lower fresh air case are respectively provided with a coupling structure protruded outwardly so that the upper fresh air case and the lower fresh air case are fixedly coupled by the coupling structure.

15. The window type air conditioner as claimed in claim 14, wherein the connecting structure includes a screw fitting installation part and a clamping installation part, the screw fitting installation part and the clamping installation part are disposed at both sides of the fresh air case in the air supply direction, the screw fitting installation part includes an upper mounting plate and a lower mounting plate disposed at the upper fresh air case and the lower fresh air case, the upper mounting plate is screw-coupled with the lower mounting plate, the clamping installation part includes a clamping block and a clamping buckle disposed at the upper fresh air case and the lower fresh air case, and the clamping block is clamped with the clamping buckle.

16. The window air conditioner as set forth in claim 1, wherein said fresh air means further includes a fresh air blower, said fresh air blower being disposed at said fresh air inlet.

17. The window air conditioner as claimed in any one of claims 1-16, further comprising an indoor air duct shell and an indoor heat exchanger, wherein the indoor air duct shell is mounted on the front side of the base plate, an indoor air duct is formed in the indoor air duct shell, the indoor heat exchanger is mounted on the base plate and arranged corresponding to an air inlet end of the indoor air duct, the end of the air outlet section forms the fresh air outlet, and the fresh air outlet is arranged adjacent to a windward side of the indoor heat exchanger.

18. The window air conditioner as set forth in claim 17 wherein said outlet section of said fresh air duct housing is at least partially located between a lower end of said indoor duct housing and said base pan.

19. The window air conditioner as recited in claim 17 further comprising a housing mounted to said base pan, said indoor air duct shell and said indoor side heat exchanger being located within said housing, said housing having an indoor air intake opening in a front side wall thereof;

20. The window air conditioner as set forth in claim 19, wherein said fresh air outlet is disposed with its opening facing upward; alternatively, the first and second electrodes may be,

the opening of new trend export sets up forward.

21. The window air conditioner as recited in claim 17 further comprising a housing mounted to said base pan, wherein said indoor air duct shell and said indoor side heat exchanger are located within said housing, an indoor air intake is provided on a front side wall of said housing, said indoor side heat exchanger comprises a first indoor heat exchanger and a second indoor heat exchanger disposed in correspondence with said indoor air intake, said window air conditioner has a constant temperature dehumidification mode in which one of said first indoor heat exchanger and said second indoor heat exchanger is in a heating mode and the other is in a cooling mode.

22. The window air conditioner as recited in claim 21 wherein said first indoor heat exchanger and said second indoor heat exchanger are stacked in the direction of the air intake of said indoor side duct; alternatively, the first and second electrodes may be,

23. The window air conditioner as recited in claim 22, wherein the window air conditioner further comprises an outdoor heat exchanger, a refrigerant circulation line, a first valve and a second valve;

24. The window type air conditioner as claimed in claim 23, wherein the refrigerant circulating line 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 type air conditioner also comprises a switching device;

25. The window air conditioner of claim 24 further comprising a controller electrically connected to the switching device, the first valve and the second valve;