A window air conditioner

Abstract

The present invention discloses a window air conditioner having a water storage groove for storing condensed water on its chassis. The chassis is also provided with a rear baffle on which a fan is mounted. Tube sheets are provided on the left and right sides of a condenser, respectively, and are connected to the rear baffle. The bottom of the condenser is seated in the water storage groove. The fan rotates to pump the condensed water in the water storage groove onto the condenser. The bottom of the tube sheet is higher than the bottom of the condenser and does not contact the condensed water in the water storage groove. The condenser tube sheet is shortened to prevent the base of the condenser tube sheet from contacting water, thereby fundamentally solving the problem of tube sheet corrosion and achieving low cost.

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] To meet energy efficiency requirements, window air conditioners often soak the bottom of the condenser in water to enhance heat exchange efficiency. Condenser tube sheets are often covered with fins, which causes the base of the tube sheet to be immersed in water for a long time, making it prone to rust. Existing condenser tube sheets are mostly protected from rust by the following two methods:

[0003] 1. Anti-corrosion treatment of tube sheets. This method increases the cost of tube sheets, and the root cuts of the tube sheets are often not covered with anti-corrosion coating, resulting in partial rust at the root of the tube sheets.

[0004] 2. Use stainless steel tube sheets to achieve the purpose of corrosion protection by replacing stainless steel materials. However, the existing unit prices of stainless steel plates are higher than the current commonly used hot-dip galvanized plates or zinc-aluminum-magnesium plates, so the use of stainless steel materials will lead to a significant increase in costs.

[0005] The above information disclosed in this background technology is only used to increase the understanding of the background technology of this application. Therefore, it may contain information that does not constitute the prior art known to ordinary technicians in this field. Summary of the Invention

[0006] In response to the problems pointed out in the background technology, the present invention proposes a window air conditioner, in which the condenser tube sheet is shortened so that the root of the condenser tube sheet does not come into contact with water, fundamentally solving the problem of tube sheet corrosion and at a low cost.

[0007] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0008] The present invention provides a window air conditioner, comprising:

[0009] a bottom plate, provided with a water storage groove for storing condensed water;

[0010] a rear baffle, which is arranged on the chassis and is provided with a fan;

[0011] A condenser, wherein tube sheets are respectively provided on the left and right sides thereof, wherein the tube sheets are connected to the rear baffle, and the bottom of the condenser is located in the water storage groove;

[0012] The fan rotates to pump the condensed water in the water storage groove onto the condenser, the bottom of the tube plate is higher than the bottom of the condenser, and the bottom of the tube plate does not contact the condensed water in the water storage groove.

[0013] In some embodiments of the present application, flanges are respectively provided on the left and right sides of the rear partition, the rear side of the tube sheet is fixedly connected to the flanges, the bottom of the flange is provided with an extension portion extending forward, the extension portion is located between the bottom of the tube sheet and the water storage groove, and the extension portion, the bottom of the tube sheet and the bottom of the condenser are sealed with glue at the junction.

[0014] In some embodiments of the present application, the distance between the bottom of the tube plate and the bottom of the condenser is L, the water level of the water storage groove is h, and the water level margin of the air conditioner is △L, L=h+△L.

[0015] In some embodiments of the present application, the window air conditioner is a saddle-type air conditioner, which includes an indoor unit, an outdoor unit, and a saddle bridge structure connecting the indoor unit and the outdoor unit;

[0016] The chassis is provided in the outdoor unit, and a drainage pump is provided on the rear partition;

[0017] The indoor unit is provided with an evaporator and a water receiving pan for receiving condensed water. The water receiving pan is connected to the drain pump via a drainage pipeline, and the drainage pipeline passes through the saddle bridge structure.

[0018] The drainage pump delivers the condensed water into the water storage groove.

[0019] In some embodiments of the present application, the saddle bridge structure is retractable to adjust the distance between the indoor unit and the outdoor unit;

[0020] The drainage pipeline includes a first drainage pipeline section located in the indoor unit, a second drainage pipeline section located in the saddle bridge structure, and a third drainage pipeline section located in the outdoor unit, which are connected in sequence, the first drainage pipeline section is connected to the water receiving pan, and the third drainage pipeline section is connected to the water inlet of the drainage pump;

[0021] An electrical box is provided in the inner cavity of the saddle bridge structure, and the second drainage pipe section is provided through the gap between the electrical box and the inner cavity side wall of the saddle bridge structure;

[0022] The second drainage pipe section is provided with a first U-shaped bending section, and the first U-shaped bending section horizontally surrounds one side end of the electrical box.

[0023] In some embodiments of the present application, a second U-shaped bend section is further provided on the second drainage pipe section, and the second U-shaped bend section shares a straight pipe section with the first U-shaped bend section. The second U-shaped bend section is horizontally located in the inner cavity of the saddle bridge structure and is located on the side of the electrical box.

[0024] In some embodiments of the present application, the third drainage pipe section includes a third drainage pipe vertical section I, a third drainage pipe transverse section and a third drainage pipe vertical section II that are connected in sequence, the third drainage pipe vertical section I is connected to the second U-shaped bend section, the drainage pipe transverse section extends along the chassis, and the third drainage pipe vertical section II extends upward along the rear partition to the water inlet of the drainage pump.

[0025] In some embodiments of the present application, the saddle bridge structure is retractable to adjust the distance between the indoor unit and the outdoor unit;

[0026] The heat exchange pipeline of the air conditioner includes a return air pipe group, and the return air pipe group includes a first return air pipe section, a second return air pipe section and a third return air pipe section which are connected in sequence;

[0027] The first return air pipe section is connected to the evaporator, the third return air pipe section is connected to the compressor provided in the outdoor unit, and the second return air pipe section is a U-shaped structure and is located in the inner cavity of the saddle bridge structure.

[0028] In some embodiments of the present application, an electrical box is provided in the inner cavity of the saddle bridge structure, and the second return air pipe section passes through the gap between the electrical box and the inner cavity side wall of the saddle bridge structure, and horizontally surrounds one side of the electrical box.

[0029] In some embodiments of the present application, the saddle bridge structure is retractable, and the saddle bridge structure includes an inner saddle bridge shell and an outer saddle bridge shell, wherein the outer saddle bridge shell is sleeved on the outer side of the inner saddle bridge shell, and the inner saddle bridge shell and the outer saddle bridge shell can move relative to each other;

[0030] One end of the inner saddle bridge housing is provided with an inner saddle bridge vertical portion extending downward, and the inner saddle bridge vertical portion is fixedly connected to one of the indoor unit and the outdoor unit;

[0031] One end of the outer saddle bridge housing is provided with an outer saddle bridge vertical portion extending downward, and the outer saddle bridge vertical portion is fixedly connected to the other of the indoor unit and the outdoor unit.

[0032] Compared with the prior art, the advantages and positive effects of the present invention are:

[0033] In the window air conditioner disclosed in this application, the condenser tube sheet is different from the traditional tube sheet. It does not cover all the fins. The condenser tube sheet is shortened so that the root of the condenser tube sheet does not come into contact with water. While ensuring that the energy efficiency remains unchanged, the problems of tube sheet corrosion and high tube sheet anti-corrosion costs can be fundamentally solved.

[0034] Other features and advantages of the present invention will become more apparent after reading the detailed description of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0036] Figure 1 is a schematic diagram of the assembly structure of the condenser, the rear baffle and the chassis according to an embodiment;

[0037] Figure 2 is a schematic diagram of the assembly structure of the condenser and the rear baffle according to an embodiment;

[0038] Figure 3 Schematic diagram of the assembly structure of the tube sheet and the rear baffle according to an embodiment;

[0039] Figure 4 is a schematic diagram of the axial structure of a saddle-type air conditioner according to an embodiment as viewed from the indoor side;

[0040] Figure 5 is a schematic diagram of the axial structure of a saddle-type air conditioner according to an embodiment as viewed from the outdoor side;

[0041] Figure 6 2. It is a structural schematic diagram of a saddle bridge structure of a saddle-type air conditioner after stretching according to an embodiment;

[0042] Figure 7 for Figure 6 The structure shown is a schematic diagram of the structure after the cover is omitted;

[0043] Figure 8 is a structural schematic diagram of a saddle bridge cover according to an embodiment;

[0044] Figure 9 is a schematic structural diagram of an inner saddle bridge housing according to an embodiment;

[0045] Figure 10 for Figure 9 The structure shown is a schematic diagram of the structure observed from Q1;

[0046] Figure 11 is an exploded view of an inner saddle bridge housing according to an embodiment;

[0047] Figure 12 is a schematic structural diagram of an outer saddle bridge housing according to an embodiment;

[0048] Figure 13 for Figure 12 The structure shown is a schematic diagram of the structure observed from Q2;

[0049] Figure 14 An exploded view of an outer saddle bridge housing according to an embodiment;

[0050] Figure 15 Schematic diagram of the internal piping structure of a saddle-type air conditioner according to an embodiment;

[0051] Figure 16 Schematic diagram of the structure of the drainage pipeline according to the embodiment;

[0052] Figure 17 is a schematic structural diagram of an air return pipe group according to an embodiment;

[0053] Figure 18 is a schematic structural diagram of a subcooling tube group according to an embodiment;

[0054] Figure 19 is a schematic diagram of a drainage pump installation structure according to an embodiment;

[0055] Figure 20 for Figure 19 The structure shown is a schematic diagram of the structure after the protective cover is omitted;

[0056] Figure 21 is a structural schematic diagram of a base in a drainage pump installation structure according to an embodiment;

[0057] Figure 22 is a schematic structural diagram of a protective cover in a drainage pump installation structure according to an embodiment;

[0058] Figure 23 Schematic diagram of the structure of the vibration reduction part in the drainage pump installation structure according to the embodiment;

[0059] Figure 24 Schematic diagram of the structure of the saddle-type air conditioner with the water soaking pipe placed on top according to the embodiment;

[0060] Reference numerals:

[0061] 100-indoor unit;

[0062] 111-Indoor top air outlet, 112-Indoor front air outlet, 113-Indoor rear air inlet;

[0063] 200-outdoor unit;

[0064] 211-outdoor front air outlet, 212-outdoor side air inlet, 213-outdoor rear air inlet, 214-outdoor top air inlet;

[0065] 220-compressor;

[0066] 230-condenser, 231-tube sheet;

[0067] 240-rear partition, 241-water tank, 2411-first water tank section, 2412-second water tank section, 2413-inclined structure, 2414-water outlet, 242-flange, 2421-extension;

[0068] 250-chassis;

[0069] 300-saddle bridge structure;

[0070] 310 - inner saddle bridge housing, 311 - inner saddle bridge L-shaped bottom plate, 3111 - transverse portion of the inner saddle bridge L-shaped bottom plate, 3112 - vertical portion of the inner saddle bridge L-shaped bottom plate, 312 - inner saddle bridge cover plate, 313 - first through cavity, 314 - inner saddle bridge reinforcement plate, 315 - buffer sealing portion;

[0071] 320 - outer saddle bridge housing, 321 - outer saddle bridge L-shaped bottom plate, 3211 - transverse portion of the outer saddle bridge L-shaped bottom plate, 3212 - vertical portion of the outer saddle bridge L-shaped bottom plate, 322 - outer saddle bridge cover plate, 323 - second through cavity, 324 - outer saddle bridge reinforcement plate;

[0072] 330 - saddle bridge cover, 331 - top plate of saddle bridge cover, 332 - side plate of saddle bridge cover, 3321 - transverse portion of side plate of saddle bridge cover, 3322 - vertical portion of side plate of saddle bridge cover, 333 - raised portion;

[0073] 600-electrical box, 610-slanted wall;

[0074] 700-drain pump;

[0075] 710-water inlet pipe;

[0076] 720-water outlet pipe;

[0077] 730 - base, 731 - extension plate structure, 732 - bayonet, 733 - mounting column, 734 - positioning column, 735 - positioning slot, 736 - second positioning portion;

[0078] 740 - vibration damping portion, 741 - first vibration damping pad, 742 - second vibration damping pad, 743 - insertion gap, 744 - first positioning portion, 745 - through hole;

[0079] 750-protective cover, 751-mounting hole, 752-positioning extension plate, 753-positioning hole;

[0080] 800-drainage pipeline;

[0081] 810 - first drainage pipe section, 811 - first drainage pipe vertical section, 812 - first drainage pipe horizontal section;

[0082] 820 - second drainage pipe section, 821 - first U-shaped bend section, 822 - second U-shaped bend section;

[0083] 830-third drainage pipe section, 831-third drainage pipe vertical section I, 832-third drainage pipe horizontal section, 833-third drainage pipe vertical section II;

[0084] 900-heat exchange pipeline;

[0085] 910-return air pipe group, 911-first return air pipe section, 912-second return air pipe section, 913-third return air pipe section, 9131-third return air pipe section 1, 9132-third return air pipe U-shaped section, 9133-third return air pipe section 2, 914-spring, 915-first evacuation pipe;

[0086] 920-subcooling pipe group, 921-U-shaped section, 922-subcooling pipe section 1, 923-subcooling pipe section 2, 924-subcooling pipe section 3;

[0087] 930-soaking pipe;

[0088] 941-first evacuation tube, 942-second evacuation tube. DETAILED DESCRIPTION

[0089] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0090] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0091] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout this application, unless otherwise specified, "plurality" means two or more.

[0092] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0093] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0094] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0095] [Condenser tube sheet corrosion prevention]

[0096] Reference Figures 1 to 3 The window air conditioner includes a chassis 250 on which components such as a compressor, a heat exchanger, and a rear partition 240 are arranged.

[0097] The chassis 250 is equipped with a water storage groove (not shown) for storing condensed water. A fan and condenser 230 are mounted on the rear bulkhead 240. Condenser 230 is located within the water storage groove. The fan rotates, pumping condensed water from the water storage groove onto condenser 230, cooling it and improving energy efficiency.

[0098] Tube sheets 231 are provided on the left and right sides of the condenser 230 respectively. The tube sheets 231 are connected to the rear partition 240. The bottom of the tube sheet 231 is higher than the bottom of the condenser 230, that is, the height of the tube sheet 231 is smaller than the overall height of the condenser 230. The bottom of the tube sheet 231 does not contact the condensed water in the water storage groove. While ensuring that the energy efficiency remains unchanged, the problems of tube sheet corrosion caused by long-term immersion in condensed water and high anti-corrosion costs of the tube sheet can be fundamentally solved.

[0099] In some embodiments of the present application, flanges 242 are respectively provided on the left and right sides of the rear partition 240, and the rear side of the tube sheet 231 is fixedly connected to the flanges 242 by screws. Since the height dimension of the tube sheet 231 becomes smaller, there will be a large gap at the junction of the bottom of the tube sheet 231 and the rear partition 240, resulting in air leakage in the external air duct, so sealing treatment is required here. The method of this embodiment is as follows: a sheet-like extension portion 2421 extending forward is provided at the bottom of the flange 242, and the extension portion 2421 is located between the bottom of the tube sheet 231 and the water storage groove. The extension portion 2421 blocks most of the gap at the bottom of the tube sheet, and then the extension portion 2421, the bottom of the tube sheet 231 and the bottom of the condenser 230 are sealed with glue at the junction to prevent air leakage in the external air duct.

[0100] In some embodiments of the present application, in conventional technology, the height of the tube sheet is equal to the height of the entire condenser. In this example, the tube sheet 231 is shortened so that the bottom of the tube sheet 231 does not contact the condensed water. The shortening size of the tube sheet 231 is determined as follows:

[0101] The distance between the bottom of tube sheet 231 and the bottom of condenser 230 is L, which is the cut-off dimension of tube sheet 231. The water level in the water reservoir is h, and the air conditioner's water level margin is ΔL, where L = h + ΔL. Different air conditioner models have specific h and ΔL. The water level margin ΔL is determined by the cooling capacity of the unit. For cooling capacity ≤ 12,000 BTU, ΔL ≥ 2 mm; for cooling capacity ≥ 12,000 BTU, ΔL ≥ 3.5 mm. During production, tube sheet 231 should be manufactured to the appropriate dimensions for the air conditioner model.

[0102] Furthermore, when determining the size of the tube sheet 231, the assembly variation x of the air conditioner related components may be taken into consideration, and in this case, L=h+ΔL+x.

[0103] The aforementioned anti-corrosion measures for condenser tube sheet 231 are universal and can be used in both conventional all-in-one window air conditioners and the emerging saddle-style air conditioners. Since the chassis of the indoor and outdoor units of saddle-style air conditioners are separate, corresponding improvements are required in the routing of drainage and heat exchange piping, as detailed below. Furthermore, the chassis mentioned in the aforementioned anti-corrosion measures for the condenser tube sheet is the chassis of the outdoor unit of a saddle-style air conditioner, and the condenser is the outdoor heat exchanger in the outdoor unit of a saddle-style air conditioner.

[0104] [Saddle type air conditioner]

[0105] In some embodiments of this application, refer to Figure 4 The saddle-type air conditioner includes an indoor unit 100 located on the indoor side, an outdoor unit 200 located on the outdoor side, and a saddle bridge structure 300 connecting the indoor unit 100 and the outdoor unit 200.

[0106] The saddle-type air conditioner has an N-type structure, wherein the indoor unit 100 and the outdoor unit 200 are respectively arranged at two ends of a saddle bridge structure 300 and are located on the same side of the saddle bridge structure 300 .

[0107] When the saddle-type air conditioner is installed on a window, the saddle bridge structure 300 is directly seated on the window, the indoor unit 100 is located on the indoor side, and the outdoor unit 200 is located on the outdoor side.

[0108] Since the indoor unit 100 and the outdoor unit 200 are both located below the window, the saddle-type air conditioner solves the problem of existing integrated window units blocking sunlight after installation.

[0109] The indoor unit 100 is separated from the outdoor unit 200 by the saddle bridge structure 300, which helps to prevent the noise of the outdoor unit 200 from being transmitted to the indoor side, thereby improving user comfort.

[0110] The indoor unit 100 mainly includes a casing, an evaporator (corresponding to an indoor heat exchanger), a water receiving pan, a cross-flow fan, an air duct and other components.

[0111] The outdoor unit 200 mainly includes a casing, a condenser (corresponding to an outdoor heat exchanger), an axial flow fan, a compressor and other components.

[0112] In some embodiments of the present application, the saddle bridge structure 300 is retractable. By adjusting the length of the saddle bridge structure 300 , the distance between the indoor unit and the outdoor unit can be adjusted to adapt to walls of different thicknesses.

[0113] Figure 4 and Figure 5 The figure shows the structure of the saddle bridge structure 300 when it is not stretched. Figure 6 FIG. 3 is a schematic structural diagram of the saddle bridge structure 300 after being stretched.

[0114] The saddle bridge structure 300 can be provided with multiple telescopic gears for easy adjustment and use.

[0115] [Drainage pipe routing structure]

[0116] In some embodiments of this application, refer to Figure 15 The bottom plate of the outdoor unit's casing is the chassis 250. A drainage pump 700 is provided on the rear partition 240. The indoor water receiving pan and the outdoor drainage pump 700 are connected by a drainage pipe 800. The drainage pipe 800 passes through the saddle bridge structure 300. The drainage pump 700 delivers the condensed water to the water storage groove on the chassis 250.

[0117] The drainage pipe 800 is led out from the indoor water receiving pan 400, passes through the inner cavity of the indoor unit 100, the inner cavity of the saddle bridge structure 300 and the inner cavity of the outdoor unit 200, and is led to the water inlet of the drainage pump 700. The drainage pump 700 then sends the condensed water to the water storage groove, and then the condensed water is pumped to the condenser 230 through the rotation of the fan to cool the condenser 230.

[0118] In some embodiments of the present application, the portion of the drainage pipe 800 located in the saddle bridge structure 300 has at least one U-shaped bend section. When the saddle bridge structure 300 is stretched, the U-shaped bend section serves as a buffer for the stretching of the pipe to a certain extent, thereby satisfying the telescopic function of the saddle bridge structure 300.

[0119] In some embodiments of this application, refer to Figure 15 and Figure 16 The drainage pipe 800 includes a first drainage pipe section 810 located in the indoor unit 100, a second drainage pipe section 820 located in the saddle bridge structure 300, and a third drainage pipe section 830 located in the outdoor unit 200, which are connected in sequence. The first drainage pipe section 810 is connected to the water receiving pan 400, and the third drainage pipe section 830 is connected to the water inlet of the drainage pump 700.

[0120] An electrical box 600 is provided in the inner cavity of the saddle bridge structure 300 , and the second drainage pipe section 820 is provided through the gap between the electrical box 600 and the inner cavity side wall of the saddle bridge structure 300 .

[0121] A first U-shaped bending section 821 is provided on the second drainage pipe section 820 . The first U-shaped bending section 821 horizontally surrounds one side end of the electrical box 600 .

[0122] The location of the electrical box 600 fully utilizes the internal space of the saddle bridge structure 300, making the entire structure more compact.

[0123] The electrical box 600 is arranged close to one side of the inner cavity of the saddle bridge structure, and the drainage pipe 800 extends from one side of the electrical box 600, making the internal structure of the saddle bridge structure 300 more regular and compact.

[0124] The saddle bridge structure 300 in this embodiment not only serves to connect the indoor unit 100 and the outdoor unit 00, but also serves to install the electrical box 600, run pipes, and run wires. It is multifunctional and has a more compact structure.

[0125] In some embodiments of the present application, one side of the electrical box 600 has an inclined wall 610, which is inclined in the vertical plane and is used to avoid the heat exchange pipeline and the drainage pipeline when the saddle bridge structure 300 is extended or retracted, thereby avoiding interference with the heat exchange pipeline and the drainage pipeline when the saddle bridge structure 300 is extended or retracted.

[0126] The two straight tube sections of the first U-shaped bend section 821 are located on both sides of the electrical box 600, and the arc section of the first U-shaped bend section 821 is located on one end side of the electrical box 600. When the length of the saddle bridge structure 300 is lengthened, the first U-shaped bend section 821 will adaptively deform to meet the tensile deformation requirements.

[0127] In some embodiments of the present application, a second U-shaped bend section 822 is also provided on the second drainage pipe section 820. The second U-shaped bend section 822 shares a straight pipe section with the first U-shaped bend section 821. The second U-shaped bend section 822 is horizontally located in the inner cavity of the saddle bridge structure 300 and on the side of the electrical box 600.

[0128] The second U-shaped bending section 822 plays a role in assisting tensile deformation, so as to ensure that when the saddle bridge structure 300 is stretched to the maximum length, the drainage pipe 800 can still ensure a sufficient length to meet normal drainage requirements.

[0129] In some embodiments of the present application, the first drainage pipe section 810 includes a first drainage pipe vertical section 811 and a first drainage pipe horizontal section 812 connected in sequence.

[0130] The first drainage pipe vertical section 811 is connected to the water receiving tray 400. The first drainage pipe vertical section 811 is close to the back plate of the indoor unit and extends in the vertical direction. It can be fixed with a positioning structure such as a buckle to improve the stability of the pipe.

[0131] The first drainage pipe transverse section 812 is connected to the first U-shaped bending section 821 and is located on a side of the electrical box 600 close to the indoor unit.

[0132] The arrangement structure of the first drainage pipe section 810 does not affect the installation of other components in the inner cavity of the indoor unit 100, fully utilizes the inner cavity space of the indoor unit, and has a compact structure.

[0133] In some embodiments of the present application, the third drainage pipe section 830 includes a third drainage pipe vertical section I 831, a third drainage pipe transverse section 832 and a third drainage pipe vertical section II 833 which are connected in sequence, the third drainage pipe vertical section I 831 is connected to the second U-shaped bend section 822, the third drainage pipe transverse section 832 extends along the chassis of the outdoor unit, and the third drainage pipe vertical section II 833 extends upward along the rear partition 240 to the water inlet of the drainage pump 700.

[0134] The third drainage pipe vertical section II 833 can be fixed to the rear partition 240 by means of a buckle or other structure to prevent the water pipe from shaking and interfering with the fan.

[0135] The arrangement structure of the third drainage pipe 830 does not affect the installation of other components in the inner cavity of the outdoor unit 200, fully utilizes the inner cavity space of the outdoor unit, and has a compact structure.

[0136] For the specific installation structure of the drainage pump 700, in some embodiments of the present application, refer to Figures 19 to 21 The drainage pump mounting structure includes a base 730, a vibration damping portion 740 and a protective cover 750. The base 730 is fixed to the rear partition 240 by connecting members (such as screws).

[0137] The protective cover 750 is fixed on the base 730 , and defines an inner cavity for installing the drain pump between the protective cover 750 and the base 730 . The drain pump 700 is installed on the base 730 .

[0138] The vibration reduction portion 740 is mainly used to reduce vibration at the connection position between the drain pump 700 and the base 730 .

[0139] Specifically, the base 730 is plate-shaped, and its front side is provided with an installation part arranged at intervals in an upper and lower manner. The vibration damping part 740 is provided on the installation part, and the drainage pump 700 is provided between the upper and lower vibration damping parts 740. A through hole 745 is provided on the vibration damping part 740. The water inlet pipe 710 of the drainage pump passes through the through hole 745 on one of the vibration damping parts 740, and the water outlet pipe 720 of the drainage pump passes through the through hole 745 on the other vibration damping part 740. The protective cover 750 is provided on the base 730 to cover the vibration damping part 740 and the drainage pump 700.

[0140] By adopting the installation structure of the drainage pump, the drainage pump 700 is installed on the rear partition plate 240 of the outdoor unit, which fully utilizes the space and makes the internal structure more compact.

[0141] The provision of the vibration-damping portion 740 and the protective cover 750 provides better protection and vibration reduction for the drainage pump 700 , thereby improving the safety and reliability of the drainage pump 700 .

[0142] In some embodiments of the present application, the mounting portion is an extension plate structure 731 provided on the base 730 , which is integrally formed, and a single-side open bayonet 732 is provided on the extension plate structure 731 .

[0143] Reference Figure 23 The vibration damping part 740 includes a first vibration damping pad 741 and a second vibration damping pad 742 arranged at an interval in the upper and lower directions. An insertion gap 743 is formed between the first vibration damping pad 741 and the second vibration damping pad 742, which are inserted into the bayonet 732 to achieve fixed installation of the vibration damping part 740 on the extension plate structure 731.

[0144] A guide structure is provided at the front opening of the bayonet 732 to guide the insertion of the vibration damping part 740 .

[0145] When installing the vibration-damping part 740 , align the insertion gap 743 with the latch 732 , and push the vibration-damping part 740 horizontally toward the base 730 .

[0146] The double-layer structure of the vibration-damping portion 740 not only facilitates its installation on the base 730 , but also helps to improve its vibration-damping effect.

[0147] In some embodiments of the present application, the drainage pump 700 is connected to the first vibration-damping pad 741 , and the thickness of the first vibration-damping pad 741 is greater than the thickness of the second vibration-damping pad 742 , thereby maximizing the vibration-damping effect on the drainage pump 700 .

[0148] In some embodiments of the present application, a first positioning portion 744 is provided on the first vibration damping pad 741. Figure 23 A second positioning portion 736 is provided on the base 730 , and the first positioning portion 744 cooperates with the second positioning portion 736 to form a positioning structure for limiting the circumferential rotation of the vibration damping portion 740 , thereby improving the installation stability of the drainage pump 700 .

[0149] In a specific embodiment, the first positioning portion 744 is a groove structure, and the second positioning portion 736 is a ridge structure.

[0150] In some embodiments of the present application, a mounting post 733 is provided on the base 730, and a mounting hole 751 is provided on the protective cover 750. The mounting post 733 and the mounting hole 751 are fixedly connected by a connector (such as a screw).

[0151] As a specific embodiment, there are two mounting holes 751 , which are staggered up and down, so that the protective cover 750 can be fixedly mounted with fewer screws.

[0152] In some embodiments of the present application, a positioning column 734 is provided on the base 730 , a positioning groove 735 is provided on the outer side of the positioning column 734 , a positioning extension plate 752 is provided on the protective cover 750 , and a positioning hole 753 is provided on the positioning extension plate 752 .

[0153] When installing the protective cover 750, first place the positioning extension plate 752 in the positioning groove 735, and insert the positioning column 734 into the positioning hole 753 to achieve preliminary positioning of the protective cover 750, and then screw the mounting column 733 and the mounting hole 751 to facilitate installation.

[0154] [Heat exchange piping structure]

[0155] In some embodiments of the present application, the heat exchange pipeline 900 of the saddle-type air conditioner mainly includes a return air pipe group 910, a subcooling pipe group 920, an exhaust pipe and a water soaking pipe 930, etc.

[0156] One end of the subcooling pipe group 920 is connected to the liquid inlet end of the evaporator (corresponding to the indoor heat exchanger), and the other end is connected to the water soaking pipe 930; one end of the return air pipe group 910 is connected to the air outlet end of the evaporator, and the other end is connected to the air intake of the compressor 220; one end of the exhaust pipe is connected to the air inlet end of the condenser (corresponding to the outdoor heat exchanger), and the other end is connected to the exhaust port of the compressor 220; one end of the water soaking pipe 930 is connected to the subcooling pipe group 920, and the other end is connected to the liquid outlet end of the condenser 230.

[0157] Reference Figure 17 The return air pipe group 910 includes a first return air pipe section 911, a second return air pipe section 912 and a third return air pipe section 913 which are connected in sequence. The first return air pipe section 911 is connected to the evaporator 120, the third return air pipe section 913 is connected to the compressor 220, and the second return air pipe section 912 is a U-shaped structure and is located in the inner cavity of the saddle bridge structure 300.

[0158] The three-section structure of the return air pipe assembly 910 facilitates processing and improves the workmanship. The return air pipe assembly 910 uses copper pipes to prevent refrigerant leakage.

[0159] When the saddle bridge structure 300 is stretched, the U-shaped second air return pipe section 912 acts as a buffer for the stretching of the pipe to a certain extent, thereby satisfying the expansion and contraction function of the saddle bridge structure 300 .

[0160] In some embodiments of the present application, the U-shaped structure of the second return air duct section 912 is a semicircular structure. When the entire machine is running, the vibration of the pipeline is actually the transmission of force. When the semicircular structure of the second return air duct section 912 is subjected to force, the forces on the arc structure will offset each other during transmission, thus achieving a shock-absorbing effect. At the same time, the arc-shaped form of the pipeline design, relative to the square or square-like pipeline form, uses less pipelines in the semicircular structure in the same space, thereby reducing the pipeline cost to a certain extent.

[0161] In some embodiments of the present application, the second return air pipe section 912 passes through the gap between the electrical box 600 and the inner cavity side wall of the saddle bridge structure 300, and horizontally surrounds one side of the electrical box 600, making full use of the internal space of the saddle bridge structure 300 to realize pipe routing.

[0162] The electrical box 600 is located in the space enclosed by the U-shaped structure of the second air return pipe section 912. When the saddle bridge structure 300 is stretched, there is enough margin on both sides of the electrical box 600 to ensure that the pipeline does not contact the electrical box 600 during the pulling process.

[0163] In some embodiments of the present application, a spring 914 is provided on the second air return pipe section 912 to prevent the second air return pipe section 912 from being flattened or collapsed during the stretching process.

[0164] The outer periphery of the second air return pipe section 912 is covered with a heat insulation sleeve (not shown), which covers the outer periphery of the spring 914 to prevent condensed water generated on the second air return pipe section 912 from flowing into the electrical box 600 .

[0165] Both ends of the second air return pipe section 912 are expanded, which is used to connect with the first air return pipe section 911 and the third air return pipe section 913 on the one hand, and to limit the spring on the other hand.

[0166] In some embodiments of the present application, the third return air pipe section 913 includes a third return air pipe section 1 9131, a third return air pipe U-shaped section 9132 and a third return air pipe section 2 9133 connected in sequence, the opening of the third return air pipe U-shaped section 9132 faces upward, the third return air pipe section 1 9131 is connected to the second return air pipe section 912, and the third return air pipe section 2 9133 is connected to the intake port of the compressor 220.

[0167] The U-shaped section 9132 of the third return air pipeline plays a role in assisting tensile deformation, can bear a small part of the tensile force, and plays a buffering role, avoiding applying a lateral force to the compressor after being directly connected to the compressor 220, which causes the compressor to be subjected to stress affecting performance and vibration.

[0168] In some embodiments of the present application, the plane where the U-shaped section 9132 of the third return air pipeline is located is parallel to the central axis of the compressor 220, which further plays a role in reducing vibration.

[0169] The first return air pipe section 911 and the third return air pipe section 913 are fixed to the back panels of the indoor unit and the outdoor unit with structures such as binding wires, so that when the return air pipe is stretched, it will not generate tensile force on the pipes in other places, avoiding deformation or breakage of the pipes.

[0170] In some embodiments of this application, refer to Figure 18The subcooling pipe group 920 is provided with a U-shaped section 921, which is consistent with the U-shaped structure of the second return air pipe section 912 to ensure the pulling consistency of the entire machine.

[0171] A heat shrink tube is placed on the supercooling pipe group 920 to prevent condensed water from flowing into the electrical box 600 and to prevent direct contact with other pipes.

[0172] In some embodiments of this application, refer to Figure 18 The subcooling pipe group 920 also includes a subcooling pipe section 1 922, a subcooling pipe section 2 923 and a subcooling pipe section 3 924 connected in sequence. The subcooling pipe section 1 922 extends horizontally along the upper position of the back panel of the outdoor unit to connect with the U-shaped section 921 of the subcooling pipe group. The subcooling pipe section 2 923 extends vertically along the side of the back panel of the outdoor unit to the chassis of the outdoor unit. The subcooling pipe section 3 924 extends horizontally along the chassis of the outdoor unit.

[0173] The routing of the subcooling pipe group 920 and the return air pipe group 910 does not interfere with each other, and the structure is compact.

[0174] Corresponding to the tensile structure of the saddle bridge structure, the lengths of the return air pipe group 910 and the subcooling pipe group 920 are increased compared to conventional window machines. In some embodiments of the present application, both the return air pipe group 910 and the subcooling pipe group 920 are provided with evacuation pipes, and two evacuation points are used to evacuate the heat exchange pipeline at the same time, thereby improving evacuation efficiency and production efficiency.

[0175] In some embodiments of this application, refer to Figure 17 and Figure 18 The first evacuation pipe 941 is arranged on the third return air pipe section 913, specifically on the second section 9133 of the third return air pipe, and the two are welded for easy processing.

[0176] A second evacuation pipe 942 is provided at a position of the subcooling pipe group 920 close to the outdoor heat exchanger. Specifically, a second evacuation pipe 942 is provided on the third section 924 of the subcooling pipe to facilitate production and processing.

[0177] In some embodiments of the present application, the first evacuation pipe 941 may also be disposed on the exhaust pipe.

[0178] [Water pipe settings]

[0179] In some embodiments of this application, refer to Figure 24 A water tank 241 is located on top of the rear partition 240. Condensed water from the indoor unit is pumped by a drain pump 700 into the water tank 241 and the outdoor unit's chassis 250. Part of the soaking pipe 930 in the heat exchange circuit is located in the water tank 241, while the other part is located on the outdoor unit's chassis 250.

[0180] Condensed water is used to cool down the upper and lower parts of the soaking pipe at the same time, thereby improving the cooling effect of the soaking pipe.

[0181] The arrangement of the water storage tank 241 fully utilizes the rear baffle structure, has a compact structure, and does not cause an additional increase in the volume of the outdoor unit.

[0182] In some embodiments of the present application, a water outlet 2414 is provided at one end of the water tank 241, and the condensed water in the water tank 241 falls onto the chassis 250 of the outdoor unit through the water outlet 2414. The condensed water drawn out from the indoor side is first used to cool the top soaking pipe, and then the condensed water is poured downward to the chassis 250 to continue cooling the lower soaking pipe, thereby improving the cooling effect and the heat exchange efficiency of the entire machine.

[0183] The process of condensed water dripping downward from the water storage tank 241 is actually a cooling process, which reduces the temperature of the condensed water, thereby improving the cooling effect on the lower soaking pipe.

[0184] In some embodiments of the present application, the water tank 241 includes a first water tank section 2411 and a second water tank section 2412 that are connected. The width of the first water tank section 2411 is greater than the width of the second water tank section 2412, and the length of the first water tank section 2411 is less than the length of the second water tank section 2412. The width refers to the direction extending along the front and rear sides of the outdoor unit, and the length refers to the direction extending along the left and right sides of the outdoor unit.

[0185] The water inlet of the water tank 241 is connected to the first water tank section 2411 , the water outlet 2414 is provided at the end of the second water tank section 2412 , and the soaking pipe located in the water tank 241 extends circumferentially along the inner wall of the water tank 241 .

[0186] The condensed water led out from the drainage pipe first flows into the first water tank section 2411. The volume of the first water tank section 2411 is large, which plays the role of buffering water. The condensed water flows from the first water tank section 2411 to the second water tank section 2412. The slender structure of the second water tank section 2412 plays the role of accelerating the water flow, thereby improving the cooling effect on the soaking pipe. The condensed water finally flows out from the water outlet 2414 at the other end and drips onto the chassis of the outdoor unit. The condensed water cools down again during the dripping process to improve the cooling effect on the soaking pipe in the chassis.

[0187] Since the first water storage tank section 2411 and the second water storage tank section 2412 have different widths, a stepped transition is created between the two. The stepped transition serves to limit the water soaking tube 930 , thereby improving the stability of the water soaking tube in the water storage tank 241 .

[0188] In some embodiments of the present application, the water tank 241 is arranged on the top rear side of the rear partition 240, and the first water tank section 2411 and the second water tank section 2412 are transitionally connected by an inclined structure 2413 on the side wall away from the rear side of the rear partition 240. The inclined structure 2413 has a diversion and pre-acceleration effect on the water flow, thereby improving the smoothness of the flow of condensed water from the first water tank section 2411 to the second water tank section 2412.

[0189] [Saddle bridge structure]

[0190] In some embodiments of this application, refer to Figure 6 and Figure 7 The saddle bridge structure 300 includes an inner saddle bridge shell 310 and an outer saddle bridge shell 320. The outer saddle bridge shell 320 is sleeved on the outer side of the inner saddle bridge shell 310. The inner saddle bridge shell 310 and the outer saddle bridge shell 320 can move relative to each other to realize the expansion and contraction of the saddle bridge structure 300.

[0191] One end of the inner saddle bridge housing 310 is provided with an inner saddle bridge vertical portion extending downward, and the inner saddle bridge vertical portion is fixedly connected to one of the indoor unit 100 and the outdoor unit 200; one end of the outer saddle bridge housing 320 is provided with an outer saddle bridge vertical portion extending downward, and the outer saddle bridge vertical portion is fixedly connected to the other of the indoor unit 100 and the outdoor unit 200.

[0192] On the one hand, the indoor unit 100 and the outdoor unit 200 are connected together through the saddle bridge structure 300; on the other hand, the saddle bridge structure 300 is fixedly connected to the indoor unit 100 and the outdoor unit 200 through two vertical parts, which helps to improve the structural stability among the indoor unit 100, the outdoor unit 200 and the saddle bridge structure 300.

[0193] The saddle bridge structure 300 can bear part of the weight of the indoor unit 100 and the outdoor unit 200, and transfer the weight to the window through the saddle bridge structure 300, which helps to improve the safety of the saddle-type air conditioner after installation and reduce the risk of crashing.

[0194] Figures 4 to 8 In the structure shown, the inner saddle bridge housing 310 is fixedly connected to the indoor unit 100 , and the outer saddle bridge housing 320 is fixedly connected to the outdoor unit 200 .

[0195] In some embodiments of the present application, a sliding portion is provided between the inner saddle bridge housing 310 and the outer saddle bridge housing 320 to make the sliding motion between the inner saddle bridge housing 310 and the outer saddle bridge housing 320 more reliable and smooth. The sliding portion can be a slide rail structure, or a slideway or slider structure provided between the inner saddle bridge housing 310 and the outer saddle bridge housing 320.

[0196] [Saddle bridge structure-inner saddle bridge shell]

[0197] For the specific structure of the inner saddle bridge housing 310, in some embodiments of the present application, refer to Figures 9 to 11The inner saddle bridge shell 310 includes an inner saddle bridge L-shaped bottom plate 311 and an inner saddle bridge cover plate 312 . The inner saddle bridge cover plate 312 is arranged on the top of the transverse portion 3111 of the inner saddle bridge L-shaped bottom plate to form a first through cavity 313 .

[0198] The vertical portion 3112 of the inner saddle bridge L-shaped bottom plate is the inner saddle bridge vertical portion mentioned above, which constitutes the back plate of the indoor unit 100 . The vertical portion 3112 of the inner saddle bridge L-shaped bottom plate is fixedly connected to the bottom plate of the indoor unit 100 .

[0199] A vent is provided on the vertical portion 3112 of the L-shaped bottom plate of the inner saddle bridge, and the vent is the indoor rear air inlet 113 .

[0200] An inner saddle bridge reinforcement plate 314 is provided at the transition position between the transverse portion 3111 and the vertical portion 3112 of the inner saddle bridge L-shaped bottom plate to further improve the structural strength of the inner saddle bridge L-shaped bottom plate 311 .

[0201] In some embodiments of the present application, the electrical box is arranged in the inner cavity of the inner saddle bridge shell, and a buffer sealing portion 315 is provided at the position where the electrical box 600 contacts the inner wall of the inner saddle bridge shell. The buffer sealing portion 315 is sealed and abutted against the top of the electrical box 600, and completely covers the top opening of the electrical box 600. On the one hand, the buffer sealing portion 315 plays a vibration reduction role, and on the other hand, it can prevent condensed water condensed on the inner wall of the saddle bridge structure 300 from dripping into the interior of the electrical box 600, thereby improving the waterproof performance of the electrical box 600.

[0202] The open top structure of the electrical box 600 facilitates the installation of electrical components inside the electrical box 600 . The inner wall of the saddle bridge structure 300 (specifically the inner saddle bridge cover 312 ) serves as the top cover of the electrical box 600 , simplifying the structure and reducing costs.

[0203] [Saddle bridge structure-outer saddle bridge shell]

[0204] For the specific structure of the outer saddle bridge housing 320, in some embodiments of the present application, refer to Figures 12 to 14 The outer saddle bridge shell 320 includes an outer saddle bridge L-shaped bottom plate 321 and an outer saddle bridge cover plate 322 . The outer saddle bridge cover plate 322 is arranged on the top of the transverse portion 3221 of the outer saddle bridge L-shaped bottom plate to form a second through cavity 323 .

[0205] The vertical portion 3212 of the outer saddle bridge L-shaped bottom plate is the outer saddle bridge vertical portion mentioned above, which constitutes the back plate of the outdoor unit 200 . The vertical portion 3212 of the outer saddle bridge L-shaped bottom plate is fixedly connected to the bottom plate of the outdoor unit 200 .

[0206] A vent is provided on the vertical portion 3212 of the L-shaped bottom plate of the outer saddle bridge, and the vent is the outdoor rear air inlet 213 .

[0207] An outer saddle bridge reinforcement plate 324 is provided at the transition position between the transverse portion 3221 and the vertical portion 3222 of the outer saddle bridge L-shaped bottom plate to further improve the structural strength of the outer saddle bridge L-shaped bottom plate 321 .

[0208] [Saddle bridge structure-saddle bridge cover]

[0209] In some embodiments of this application, refer to Figure 6 and Figure 7 The saddle-type air conditioner further includes a saddle bridge cover 330 . When the inner saddle bridge housing 310 and the outer saddle bridge housing 320 move away from each other, the saddle bridge cover 330 covers the exposed portion of the inner saddle bridge housing 310 .

[0210] When the saddle bridge structure 300 is not stretched, refer to Figure 4 and Figure 5 The saddle bridge cover 330 shields both the inner saddle bridge housing 310 and the outer saddle bridge housing 320 .

[0211] In some embodiments of this application, refer to Figure 8 The saddle bridge cover 330 includes a saddle bridge cover top plate 331 and a saddle bridge cover side plate 332 . The saddle bridge cover top plate 331 blocks the top of the saddle bridge structure 300 , and the saddle bridge cover side plate 332 blocks the sides of the saddle bridge structure 300 .

[0212] The saddle bridge cover side panel 332 is an L-shaped structure. The horizontal portion 3321 of the saddle bridge cover side panel blocks the side of the saddle bridge structure 300. The vertical portion 3322 of the saddle bridge cover side panel is fixedly connected to the side panel of the indoor unit 100, constituting a part of the side of the indoor unit 100 and realizing the fixed installation of the saddle bridge cover 330 on the indoor unit 100.

[0213] In some embodiments of this application, refer to Figure 8 A protrusion 333 protruding toward the inner side is provided on the transverse portion 3321 of the side plate of the saddle bridge cover shell. The protrusion 333 is fixedly connected to the outer saddle bridge shell 320 by a connecting member (such as a screw) to realize the positioning of the inner saddle bridge shell 310 and the outer saddle bridge shell 320 after relative movement to the desired position.

[0214] After the saddle bridge structure 300 is stretched into place, the saddle bridge cover 330 is fixedly connected to the outer saddle bridge shell 320. Since the inner saddle bridge shell 310 and the saddle bridge cover 330 are both fixedly connected to the indoor unit 100, and the outer saddle bridge shell 320 is fixedly connected to the outdoor unit 200, the saddle bridge structure 300 is fixed in a fixed position.

[0215] The arrangement of the raised portion 333 forms a depression on the outer surface of the saddle bridge cover 330 , and the screw is embedded in the depression structure, thereby preventing the outer end surface of the screw from protruding from the saddle bridge cover 330 and scratching the user.

[0216] [Indoor side air inlet and outlet]

[0217] In some embodiments of the present application, there is a certain gap between the back plate of the indoor unit 100 and the indoor side wall. The air inlet and outlet of the indoor unit 100 is as follows: Figure 5 , air enters from the front and back sides of the indoor unit 100, and air exits from the top.

[0218] Specifically, an indoor front air inlet 112 is provided on the front side panel of the indoor unit 100 , an indoor rear air inlet 113 is provided on the back panel of the indoor unit 100 , and an indoor top air outlet 111 is provided on the top of the indoor unit 100 .

[0219] Indoor air flows into the inner cavity of the indoor unit 100 from the indoor front air inlet 112 and the indoor rear air inlet 113 , exchanges heat in the indoor heat exchanger 120 , and then flows out from the indoor top air outlet 111 .

[0220] The gap between the back plate of the indoor unit 100 and the indoor side wall provides the possibility for the back side air intake of the indoor unit 100.

[0221] Air enters the front and back sides of the indoor unit 100 at the same time. Compared with the existing window unit, the air intake volume is significantly increased, which helps to improve the heat exchange efficiency of the indoor heat exchanger and thus improve the heat exchange efficiency of the entire unit.

[0222] The method of simultaneous air intake from the front and back sides eliminates the bottom air intake while ensuring sufficient air intake, thereby solving the problem of increased wind resistance in the water collection pan and overflow and dripping of condensed water caused by the bottom air intake of the indoor unit in the prior art.

[0223] Since there is no need to open an air inlet at the bottom of the indoor unit, there is no need to reserve too much space between the base plate of the indoor unit and the water tray, which helps to reduce the overall height of the indoor unit and reduce the indoor space occupied.

[0224] [Outdoor air inlet and outlet]

[0225] In some embodiments of the present application, there is a certain gap between the back plate of the outdoor unit 200 and the outdoor wall. The air inlet and outlet of the outdoor unit 200 is as follows: Figure 4 The air enters the left and right sides, top and back of the outdoor unit 200, and the air exits the front.

[0226] Specifically, an outdoor rear air inlet 213 is provided on the back panel of the outdoor unit 200, outdoor side air inlets 212 are respectively provided on the left and right side panels of the outdoor unit 200, an outdoor top air inlet 214 is provided on the top panel of the outdoor unit 200, and an outdoor front air outlet 211 is provided on the front side panel of the outdoor unit 200.

[0227] Outdoor air flows into the inner cavity of the outdoor unit 200 from the outdoor rear air inlet 213 , the outdoor side air inlet 212 , and the outdoor top air inlet 214 , and flows out from the outdoor front air outlet 211 after heat exchange in the outdoor heat exchanger.

[0228] The gap between the rear panel of the outdoor unit 200 and the outdoor wall provides a possibility for air to enter from the back side of the outdoor unit 200 .

[0229] The outdoor unit 200 adopts a four-sided air intake method to increase the air intake volume, which helps to improve the heat dissipation efficiency of the outdoor heat exchanger and improve the heat exchange efficiency of the entire unit.

[0230] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0231] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A window air conditioner, characterized in that: include: a bottom plate, provided with a water storage groove for storing condensed water; a rear baffle, which is arranged on the chassis and is provided with a fan; A condenser, wherein tube sheets are respectively provided on the left and right sides thereof, wherein the tube sheets are connected to the rear baffle, and the bottom of the condenser is located in the water storage groove; The fan rotates to pump the condensed water in the water storage groove onto the condenser, the bottom of the tube sheet is higher than the bottom of the condenser, and the bottom of the tube sheet does not contact the condensed water in the water storage groove; The distance between the bottom of the tube plate and the bottom of the condenser is L, the water level height of the water storage groove is h, and the water level margin of the air conditioner is ΔL, L=h+ΔL.

2. The window air conditioner according to claim 1, wherein: The left and right sides of the rear partition are respectively provided with flanges, the rear side of the tube plate is fixedly connected to the flanges, the bottom of the flange is provided with an extension portion extending forward, the extension portion is located between the bottom of the tube plate and the water storage groove, and the extension portion, the bottom of the tube plate and the bottom of the condenser are sealed with glue at the junction.

3. The window air conditioner according to claim 1 or 2, characterized in that: The window air conditioner is a saddle-type air conditioner, which includes an indoor unit, an outdoor unit, and a saddle bridge structure connecting the indoor unit and the outdoor unit; The chassis is provided in the outdoor unit, and a drainage pump is provided on the rear partition; The indoor unit is provided with an evaporator and a water receiving pan for receiving condensed water. The water receiving pan is connected to the drain pump via a drainage pipeline, and the drainage pipeline passes through the saddle bridge structure. The drainage pump delivers the condensed water into the water storage groove.

4. The window air conditioner according to claim 3, characterized in that The saddle bridge structure is retractable to adjust the distance between the indoor unit and the outdoor unit; The drainage pipeline includes a first drainage pipeline section located in the indoor unit, a second drainage pipeline section located in the saddle bridge structure, and a third drainage pipeline section located in the outdoor unit, which are connected in sequence, the first drainage pipeline section is connected to the water receiving pan, and the third drainage pipeline section is connected to the water inlet of the drainage pump; An electrical box is provided in the inner cavity of the saddle bridge structure, and the second drainage pipe section is provided through the gap between the electrical box and the inner cavity side wall of the saddle bridge structure; The second drainage pipe section is provided with a first U-shaped bending section, and the first U-shaped bending section horizontally surrounds one side end of the electrical box.

5. The window air conditioner according to claim 4, characterized in that The second drainage pipe section is also provided with a second U-shaped bend section, which shares a straight pipe section with the first U-shaped bend section. The second U-shaped bend section is horizontally located in the inner cavity of the saddle bridge structure and on the side of the electrical box.

6. The window air conditioner according to claim 4, characterized in that The third drainage pipe section includes a third drainage pipe vertical section I, a third drainage pipe transverse section and a third drainage pipe vertical section II which are connected in sequence. The third drainage pipe vertical section I is connected to the second U-shaped bend section. The drainage pipe transverse section extends along the chassis. The third drainage pipe vertical section II extends upward along the rear partition to the water inlet of the drainage pump.

7. The window air conditioner according to claim 3, wherein: The saddle bridge structure is retractable to adjust the distance between the indoor unit and the outdoor unit; The heat exchange pipeline of the air conditioner includes a return air pipe group, and the return air pipe group includes a first return air pipe section, a second return air pipe section and a third return air pipe section which are connected in sequence; The first return air pipe section is connected to the evaporator, the third return air pipe section is connected to the compressor provided in the outdoor unit, and the second return air pipe section is a U-shaped structure and is located in the inner cavity of the saddle bridge structure.

8. The window air conditioner according to claim 7, wherein: An electrical box is provided in the inner cavity of the saddle bridge structure. The second air return pipe section passes through the gap between the electrical box and the inner cavity side wall of the saddle bridge structure and horizontally surrounds one side of the electrical box.

9. The window air conditioner according to claim 3, wherein: The saddle bridge structure is retractable and comprises an inner saddle bridge shell and an outer saddle bridge shell. The outer saddle bridge shell is sleeved on the outer side of the inner saddle bridge shell. The inner saddle bridge shell and the outer saddle bridge shell can move relative to each other. One end of the inner saddle bridge housing is provided with an inner saddle bridge vertical portion extending downward, and the inner saddle bridge vertical portion is fixedly connected to one of the indoor unit and the outdoor unit; One end of the outer saddle bridge housing is provided with an outer saddle bridge vertical portion extending downward, and the outer saddle bridge vertical portion is fixedly connected to the other of the indoor unit and the outdoor unit.

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