Window frame and window-type air conditioning device

Abstract

The application discloses a window frame and a window type air conditioning equipment. The window frame comprises a first fixing frame, a second fixing frame and a locking piece. The first fixing frame is used for connecting the window type air conditioning equipment. The second fixing frame is connected to the first fixing frame and is used for being inserted and matched with a window frame. The locking piece is connected to the second fixing frame and is used for locking and fixing the second fixing frame and the window frame. Thus, the window frame comprises the first fixing frame, the second fixing frame and the locking piece, and a hierarchical installation structure with a pre-positioning and active locking function is constructed. The second fixing frame and the window frame are inserted and matched with each other, quick alignment and temporary fixing can be realized in the initial installation stage, a stable pre-positioning state is formed, on the basis, the second fixing frame and the window frame are mechanically locked by operating the locking piece, a rigid connection is further established, and loosening, slipping or falling of the equipment under the running vibration, external wind and rain impact or human touch is effectively prevented.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and in particular to a window frame and a window air conditioning device. Background Technology

[0002] Window air conditioners are a common type of household air conditioning equipment, typically installed near windows to provide cooling or heating. However, in many technologies, window air conditioners are installed using brackets that rely solely on friction or gravity for support, lacking an effective locking mechanism. Over time, these brackets can loosen due to vibrations from the unit's operation, external wind and rain, or human contact, posing a safety hazard. Utility Model Content

[0003] This application provides a window frame and a window air conditioning device, which can solve at least one of the above-mentioned technical problems.

[0004] In a first aspect, embodiments of this application provide a window frame, the window frame comprising:

[0005] A first fixing bracket is used to connect a window air conditioning unit;

[0006] A second fixing bracket, connected to the first fixing bracket, and used for interlocking with the window frame; and

[0007] A locking element is connected to the second fixing bracket and locks the second fixing bracket to the window frame.

[0008] In some embodiments, the first mounting bracket includes a fixed plate and a reinforcing flange connected to each other, the fixed plate being used to connect the window air conditioning unit, and the reinforcing flange being bent relative to the fixed plate.

[0009] In some embodiments, the fixing plate is provided with a plurality of first screw mounting holes for cooperating with the window air conditioning unit.

[0010] In some embodiments, the first screw mounting holes are provided on both sides of the second fixing frame along the width direction of the fixing plate.

[0011] In some embodiments, the second fixing frame includes a first connecting part, a second connecting part, and a third connecting part connected in sequence. The second connecting part is connected to the first fixing frame. The first connecting part and the third connecting part are opposite to each other and spaced apart. The first connecting part and the third connecting part cooperate to form a plug-in end, and the plug-in end is plugged into the plug-in slot of the window frame.

[0012] In some embodiments, the locking member passes through the first connecting portion, the window frame, and the second connecting portion.

[0013] In some embodiments, the second connecting portion is provided with a plurality of second screw mounting holes, and the first fixing bracket is provided with a plurality of third screw mounting holes, each of the third screw mounting holes corresponding to one of the second screw mounting holes and cooperating with the window air conditioning unit.

[0014] In some embodiments, one side of the second connecting portion is fitted and connected to one side of the first fixing frame.

[0015] In some embodiments, both the first fixing bracket and the second fixing bracket are sheet metal parts.

[0016] In a first aspect, embodiments of this application provide a window air conditioning device, including:

[0017] Window frame according to any of the above embodiments;

[0018] An air conditioner outdoor unit, wherein the air conditioner outdoor unit is mounted to the window frame via the window frame; and

[0019] An indoor unit for an air conditioner, which is connected to the outdoor unit for an air conditioner via a refrigerant pipe.

[0020] The window frame and window air conditioning unit provided in this application include a first fixed frame, a second fixed frame, and a locking component. The first fixed frame is used to connect the window air conditioning unit; the second fixed frame is connected to the first fixed frame and is used for plug-in engagement with the window frame; the locking component is connected to the second fixed frame and locks the second fixed frame to the window frame. Thus, the window frame of this application, including the first fixed frame, the second fixed frame, and the locking component, constructs a hierarchical installation structure with pre-positioning and active locking functions. The second fixed frame and the window frame are connected via a plug-in engagement, enabling rapid alignment and temporary fixation during the initial installation phase, forming a stable pre-positioned state, facilitating user adjustment of the spatial position and horizontal orientation of the air conditioning unit. Furthermore, by operating the locking component to mechanically lock the second fixed frame to the window frame, a rigid connection is further established, effectively preventing the equipment from loosening, slipping, or falling off under operating vibration, external wind and rain impact, or human contact. This avoids the passive fixing mode of traditional brackets that rely solely on friction or gravity pressure, significantly improving the convenience of the installation process and the reliability of the final connection. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a window air conditioning device provided in an embodiment of this application.

[0023] Figure 2 A schematic diagram of the structure of a window air conditioning device provided in another embodiment of this application.

[0024] Figure 3 A schematic diagram of the structure of a window air conditioning device provided in another embodiment of this application.

[0025] Figure 4 This is a schematic diagram of the structure of a window air conditioning device provided in another embodiment of this application.

[0026] Figure 5 for Figure 1 A schematic diagram of the window frame structure of a medium-sized window air conditioning unit.

[0027] Figure 6 for Figure 5 A structural diagram showing the disassembled structure of the central window frame.

[0028] Figure 7 for Figure 2 A schematic diagram of the structure of the stroke pressure plate.

[0029] Explanation of icon numbers:

[0030] 10. Window air conditioning unit; 100. Outdoor unit; 101. Refrigerant pipe; 102. Outdoor unit air inlet; 103. Outdoor unit air outlet; 110. Outdoor unit casing; 120. Condenser; 121. First condenser plate; 122. Second condenser plate; 130. Outdoor unit impeller; 140. Air pressure plate; 141. Air duct space; 141a. Air inlet cavity; 141b. Air outlet cavity; 142. Side plate; 143. Top plate; 144. Bottom plate; 150. Baffle ribs; 200. Indoor unit; 201. Indoor unit air inlet; 202. Indoor unit air outlet; 210. Indoor unit casing 220. Evaporator; 230. Indoor unit fan wheel; 240. Compressor; 300. Window frame; 310. First fixing bracket; 311. Fixing plate; 312. Reinforcing fold; 313. First screw mounting hole; 314. Third screw mounting hole; 320. Second fixing bracket; 321. First connecting part; 322. Second connecting part; 322a. Second screw mounting hole; 323. Third connecting part; 400. Spray assembly; 410. Water tray; 420. Water pump; 430. Spray component; 440. Water pipe; 450. Protective pipe; 460. Water level sensor;

[0031] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0033] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0034] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] Window air conditioners are common household air conditioning devices, typically installed near windows to cool or heat the room. They often employ an integrated indoor / outdoor unit structure, combining the compressor, condenser, evaporator, and fan into a single casing, which is then embedded into the window during installation. However, inventors have discovered that this centralized arrangement of components results in a significant weight for window air conditioners. This not only increases the difficulty of handling and installing the unit but also places higher demands on the load-bearing capacity of the window structure, posing certain safety hazards.

[0037] In view of this, please refer to Figure 1 This application provides a window air conditioning unit 10, which includes an outdoor unit 100, an indoor unit 200, and a window frame 300. The indoor unit 200 and the outdoor unit 100 are connected by a refrigerant pipe 101, and the indoor unit 200 and the outdoor unit 100 are separate units. The window frame 300 is installed on the outdoor unit 100 so that the outdoor unit 100 is connected to the window frame through the window frame 300.

[0038] Thus, compared with window air conditioning equipment in related technologies, the indoor unit 200 and outdoor unit 100 of the window air conditioning equipment 10 of this application are set separately and connected by refrigerant pipe 101, which fundamentally changes the structural layout of the window air conditioning equipment 10. During the installation process, the outdoor unit 100 of the window air conditioning equipment 10 only needs to be installed on the window frame of the window through the window frame 300. This not only helps to reduce the difficulty of handling and installing the window air conditioning equipment 10 during the installation process, but also helps to reduce the weight of the unit that needs to be supported by the window during installation, reduce the load on the window frame structure, and improve the installation safety.

[0039] Furthermore, the split design allows the outdoor unit 100 to be independently fixed to the window frame via the window frame 300, eliminating the need to embed the entire air conditioning unit into the window opening and simplifying the installation process. Users or installers can move and position the indoor air conditioning outdoor unit 100 separately, reducing the risks and operational difficulties of working at heights.

[0040] Please see Figure 2 and Figure 3In some embodiments, the outdoor unit 100 of the air conditioner includes an outdoor unit housing 110 and a condenser 120 disposed within the outdoor unit housing 110. Specifically, the condenser 120 serves as a high-temperature side heat exchange device in the refrigeration cycle, used to exchange heat between the high-temperature, high-pressure gaseous refrigerant and the outdoor air, causing it to condense into a liquid state. The outdoor unit housing 110 is made of a material with good mechanical strength and weather resistance, effectively protecting the internal components of the outdoor unit 100 from the influence of the external environment. The outdoor unit 100 does not contain a compressor 240, only undertaking the functions of refrigerant condensation and heat dissipation, thus its structure is relatively simplified, significantly reducing the weight of the outdoor unit 100, thereby further improving the installation convenience of the window air conditioning unit 10.

[0041] The indoor unit 200 of the air conditioner includes an indoor unit housing 210, an evaporator 220 housed within the housing 210, and a compressor 240. The evaporator 220, as a low-temperature heat exchange component in the refrigeration cycle, exchanges heat with indoor air to achieve cooling or heating. The compressor 240, as the power source of the refrigeration system, is responsible for compressing the low-temperature, low-pressure refrigerant gas from the evaporator 220 to a high-temperature, high-pressure state, and driving the refrigerant to circulate within the system. The indoor unit housing 210 has an air intake passage and an air outlet, and an indoor unit fan 230 is installed inside. Through an air duct design, indoor air is guided through the evaporator 220 to complete heat exchange before being returned to the indoor space. Of course, vibration-damping or sound-insulating structures can be incorporated into the indoor unit 200 to reduce the vibration or noise generated by the compressor 240.

[0042] The evaporator 220, compressor 240, and condenser 120 are connected by refrigerant pipes 101, forming a complete refrigerant circulation system. The refrigerant pipes 101 are made of metal tubing, and the connection points are made using welding or sealing joint processes to ensure the airtightness of the refrigerant circulation system.

[0043] By integrating the compressor 240 into the indoor unit housing 210 of the indoor unit 200, the outdoor unit 100 is relieved of the burden of supporting this heavy core component. As one of the heaviest individual components in the refrigeration system, the placement of the compressor 240 has a decisive impact on the overall weight distribution of the unit. By placing the compressor 240 within the indoor unit 200, the total weight of the outdoor unit 100 is significantly reduced, which helps to lower the load on the window frame structure during installation. Simultaneously, the lighter outdoor unit 100 is easier to move, lift, and position, significantly improving the safety and installation efficiency of high-altitude operations.

[0044] Furthermore, the reduced weight of the outdoor air conditioning unit 100 allows for a lighter load-bearing design in the window frame 300. The window frame 300 structure can utilize less material or a smaller cross-sectional size, reducing manufacturing costs and stress concentration at the window frame connection points. Simultaneously, the lightweight outdoor air conditioning unit 100 generates a smaller overturning moment under external loads such as strong winds, further enhancing installation stability and long-term reliability.

[0045] Please see Figures 1 to 3 In some embodiments, the indoor unit 200 of the air conditioner also includes an indoor unit impeller 230, which is disposed inside the indoor unit housing 210. The indoor unit housing 210 is provided with an indoor unit air inlet 201 and an indoor unit air outlet 202. The indoor unit impeller 230 drives air to flow from the indoor unit air inlet 201 to the evaporator 220, and from the evaporator 220 to the indoor unit air outlet 202.

[0046] The indoor unit fan 230 is the core power component for indoor air circulation. Driven by a motor, the indoor unit fan 230 rotates to generate a stable airflow pressure difference, thereby achieving forced intake and directional exhaust of indoor air and ensuring the continuous operation of the window air conditioning unit 10.

[0047] The indoor unit's air inlet 201 is used to introduce indoor air to be treated, and the indoor unit's air outlet 202 is used to return the conditioned air to the indoor space. The indoor unit's air inlet 201 is typically located on the front, top, or side of the casing, while the indoor unit's air outlet 202 is located in the front or lower area of ​​the casing. These two are spatially separated to prevent the supplied airflow from directly flowing back to the indoor unit's air inlet 201, thus avoiding airflow short-circuiting. In other embodiments, the indoor unit's air outlet 202 is equipped with an adjustable air guide plate to adjust the airflow direction and coverage, improving the uniformity of the indoor temperature field.

[0048] The indoor unit fan 230 is located in the airflow path between the indoor unit air inlet 201 and the evaporator 220, or between the evaporator 220 and the indoor unit air outlet 202. The specific location is determined according to the type of indoor unit fan 230 and the air duct structure. When the indoor unit fan 230 starts, a negative pressure zone is formed near the air inlet, driving indoor air from the indoor unit air inlet 201 into the casing. The airflow then flows over the surface of the evaporator 220, where it exchanges heat with the low-temperature refrigerant. The heat in the air is absorbed, the temperature decreases, and some moisture condenses and precipitates out, completing the cooling and dehumidification process.

[0049] The cooled air, after being processed by the evaporator 220, continues to flow under the impeller 230 of the indoor unit and is discharged from the air outlet 202 of the indoor unit, forming a continuous indoor air circulation. The speed of the indoor unit impeller 230 is adjustable, supporting multi-level airflow control or stepless speed regulation operation. Users can adjust the air supply intensity according to actual needs to achieve a balance between comfort and energy saving.

[0050] During the refrigeration cycle of the window air conditioning unit 10, the evaporator 220 of the indoor unit 200 absorbs heat from the indoor air, cooling the air. Water vapor in the air condenses on the surface of the evaporator 220, forming condensate. This condensate is usually collected by a drip tray 410 located below the evaporator 220 and discharged outdoors through a drain pipe 440. This means that the condensate cannot be effectively utilized, resulting in a waste of water resources.

[0051] In view of this, please refer to Figures 1 to 4 In some embodiments, the window air conditioning unit 10 further includes a spray assembly 400, which includes a water collection tray 410, a water pump 420, and a spray element 430. The water collection tray 410 and the water pump 420 are disposed in the indoor unit housing 210, and the spray element 430 is disposed in the outdoor unit housing 110. The water collection tray 410, the water pump 420, and the spray element 430 are connected in sequence through a water pipe 440. The water collection tray 410 is disposed below the evaporator 220 to collect the condensate produced by the evaporator 220. The water pump 420 is used to send the condensate to the spray element 430, and the spray element 430 is used to spray the condensate pumped by the water pump 420 onto the condenser 120.

[0052] Thus, compared with the window air conditioning equipment in the related technology, the window air conditioning equipment 10 provided in this application embodiment, by setting a water receiving tray 410 and a water pump 420 in the indoor unit 200 and a spray element 430 in the outdoor unit 100, and connecting the three through a water pipe 440 to form a condensate recycling system, realizes the recovery and resource utilization of condensate generated by the evaporator 220, and saves water resources.

[0053] Furthermore, the drip tray 410, located below the evaporator 220, effectively collects condensate formed on the surface of the evaporator 220 during air dehumidification. The water pump 420 transports the condensate from the drip tray 410 to the spray nozzle 430 inside the outdoor unit casing 110. The spray nozzle 430 evenly sprays the condensate onto the surface of the condenser 120. The condensate evaporates on the surface of the condenser 120, carrying away a large amount of heat and significantly enhancing the heat dissipation effect of the condenser 120, thereby improving the energy efficiency ratio of the window air conditioning unit 10.

[0054] At the same time, the process uses the condensate that was originally discharged to replace part of the external water source for evaporative cooling, without consuming additional tap water, thus saving water resources.

[0055] Moreover, the spray cooling effect helps improve the operational stability of the window air conditioning unit 10 in high-temperature environments, prevents overheating protection shutdown due to poor heat dissipation, and extends the service life of the window air conditioning unit 10.

[0056] In some embodiments, the drip tray 410 is installed inside the indoor unit housing 210 of the air conditioner indoor unit 200, located directly below the evaporator 220, to collect and gather all the condensate generated by the evaporator 220 during the cooling or dehumidification process. The drip tray 410 is made of corrosion-resistant plastic or metal material, and the bottom of the drip tray 410 is provided with a guide slope and a drain outlet to ensure smooth drainage of condensate and prevent water accumulation that could breed bacteria or produce odors.

[0057] In some embodiments, the spray element 430 is installed inside the outdoor unit housing 110 of the air conditioner outdoor unit 100, located above the condenser 120. The spray element 430 is an array of nozzles or a water distribution pipe 440 with multiple water outlets, capable of atomizing or uniformly spraying the condensate delivered by the water pump 420 onto the fin surface of the condenser 120. The condenser 120 releases a large amount of heat during the refrigeration cycle, resulting in a high surface temperature. The condensate sprayed onto it rapidly absorbs heat and evaporates, forming an evaporative cooling effect. This helps to enhance the heat exchange efficiency between the condenser 120 and the outside air, effectively reducing the refrigerant condensation temperature and the system high-pressure side pressure.

[0058] In some embodiments, there are multiple spray elements 430, which are arranged along the length of the condenser 120. This arrangement ensures that the spray coverage area matches the overall heat exchange area of ​​the condenser 120, avoiding localized insufficient spraying or cooling blind spots, and improving the uniformity and effectiveness of spray cooling.

[0059] Condenser 120 typically has a large frontal area and a long horizontal extension. If only a single spray element 430 is used, it is difficult to achieve sufficient wetting of the entire fin surface, easily leading to water concentration in localized areas and affecting heat dissipation efficiency. Therefore, by using multiple spray elements 430, spaced apart along the length of condenser 120, condensate can be diverted to multiple outlet points, forming a multi-point synchronous spraying operation. Each spray element 430 is responsible for spraying within a certain width range, collectively forming a spray band covering the entire width of condenser 120, significantly improving the uniformity of water film distribution on the fin surface of condenser 120.

[0060] Multiple spray elements 430 are connected to the main water supply pipe 440 via branch water pipes 440, forming parallel or series water supply paths. In the parallel structure, each spray element 430 is independently connected to the main pipeline output by the water pump 420, and the flow rate of each branch is adjusted by a throttling orifice or a flow stabilizing valve to ensure that the water output of each nozzle is consistent. In the series structure, the main pipeline connects each spray element 430 in sequence, and the flow rate is balanced by the pipeline layout and orifice design. The spray elements 430 use atomizing nozzles or fan-shaped nozzles, which can break the condensate into fine droplets, increase the contact surface area between water and air, accelerate the evaporation rate, and further enhance the cooling effect.

[0061] The spray elements 430 are installed on the inner wall of the outdoor unit housing 110 above the condenser 120 or on a dedicated bracket, and are securely fixed to prevent displacement due to vibration. Some spray elements 430 are positioned close to the air inlet side of the condenser 120 to prioritize cooling the area that first comes into contact with the high-temperature airflow; the remaining spray elements 430 extend towards the air outlet side to continuously replenish the moisture lost through evaporation and maintain a stable cooling effect. Under high-temperature and high-load operating conditions, the coordinated operation of multiple spray elements 430 can significantly reduce the average temperature of the condenser 120, suppress the upward trend of system high pressure, and ensure the stable operation of the compressor 240.

[0062] In some embodiments, the condenser 120 includes a first condensing plate 121 and a second condensing plate 122 connected to each other, with the first condensing plate 121 and the second condensing plate 122 arranged opposite to each other and spaced apart. The condenser 120 is composed of the first condensing plate 121 and the second condensing plate 122, which are interconnected and arranged opposite to each other and spaced apart, forming a plate or plate-fin heat exchange structure with double-sided heat exchange surfaces. A certain airflow gap is maintained between the two condensing plates. Driven by an outdoor fan, ambient air enters from one side of the condenser 120, flows sequentially across the surfaces of the first condensing plate 121 and the second condensing plate 122, completes heat exchange with the high-temperature refrigerant, and is then discharged from the other side, achieving efficient convective heat dissipation.

[0063] The first condenser plate 121 and the second condenser plate 122 are made of a metal material with good thermal conductivity, and their surfaces are provided with dense heat dissipation fins or microchannel structures to increase the contact area with air and improve heat exchange efficiency. The refrigerant flows through the internal channels in the first condenser plate 121 and the second condenser plate 122, releasing heat to the surrounding air.

[0064] Multiple spray elements 430 are disposed between the first condenser plate 121 and the second condenser plate 122. These spray elements 430 are evenly distributed along the length of the condenser 120 within the gap between the first condenser plate 121 and the second condenser plate 122. This arrangement positions the spray elements 430 in the core area of ​​the airflow path, allowing the sprayed condensate to directly act on the inner surfaces of the two condenser plates. This fully utilizes the narrow space between the plates to achieve close-range spraying, reducing water mist loss and improving the adhesion rate and wetting effect of water droplets. Since both the first condenser plate 121 and the second condenser plate 122 are at high temperatures during operation, the condensate sprayed onto their surfaces rapidly absorbs heat and evaporates, generating a strong evaporative cooling effect. This significantly reduces the surface temperature of the metal plates, thereby improving the overall heat dissipation capacity.

[0065] Furthermore, multiple spray elements 430 are positioned between the first condenser plate 121 and the second condenser plate 122, which helps to achieve more compact space utilization and more efficient heat exchange matching. The spraying process is arranged in a cross or opposite direction to the airflow, which prolongs the residence time of water vapor in the high-temperature area and enhances evaporation efficiency. At the same time, the inter-plate structure has a certain containment effect on water mist, reducing the risk of water droplets being carried out of the condenser 120 by the high-speed airflow, thus reducing water loss and the risk of dampness inside the outdoor unit casing 110.

[0066] The spray element 430 is fixed to a bracket or mounting beam. The bracket is connected to the internal structure of the outdoor unit casing 110, ensuring a stable position and preventing displacement due to vibration or water flow impact. Multiple spray elements 430 are connected to the water pump 420 via water supply pipes 440, forming a stable water supply path. Each spray element 430 is a micro-atomizing nozzle or linear water distributor, capable of atomizing condensate into fine droplets under low water pressure conditions, ensuring coverage of a large heat exchange area even with limited water volume.

[0067] In some embodiments, the spray element 430 is disposed above the condenser 120. The spray element 430, positioned above the condenser 120 and inside the outdoor unit housing 110 and close to the top region of the condenser 120, facilitates the natural downward spraying of condensate using gravity, allowing water droplets to vertically or obliquely cover the fin surface of the condenser 120, forming a continuous wetting layer and improving the evaporative cooling effect.

[0068] In some embodiments, the spray assembly 400 further includes a water level sensor 460 and a controller, the controller being electrically connected to the water level sensor 460 and the water pump 420. The water level sensor 460 senses the water level in the drip tray 410. When the water level sensor 460 detects that the condensate in the drip tray 410 has reached a first preset water level, the controller controls the water pump 420 to operate. When the water level sensor 460 detects that the condensate in the drip tray 410 has reached a second preset water level, the controller controls the water pump 420 to stop operating. Of course, the controller can also be electrically connected to other electronic components of the window air conditioning unit 10, thereby enabling the window air conditioning unit 10 to operate normally.

[0069] The spray assembly 400 further integrates a water level sensor 460 and a controller, forming an intelligent water management module with automatic control functions. The water level sensor 460 is installed on the inner wall or bottom of the water receiving pan 410 to monitor the liquid level of condensate inside the pan 410 in real time. The water level sensor 460 employs an electrode-type, float-type, or ultrasonic sensing structure, featuring fast response speed, strong anti-interference ability, and long-term stable operation. It can accurately identify different water level states and output corresponding electrical signals.

[0070] The controller is fixed in the electrical box of the indoor unit 200 or the outdoor unit 100 of the air conditioner, and establishes an electrical connection with the water level sensor 460 and the water pump 420. The controller is a microprocessor or dedicated logic control unit with a built-in preset program. It receives the detection signal from the water level sensor 460 and automatically controls the start and stop of the water pump 420 according to the set logic. The controller drives the water pump 420 through a relay or solid-state switch module, achieving precise management of the condensate delivery process.

[0071] When the window air conditioner 10 is in cooling mode, water vapor in the indoor air continuously condenses on the surface of the evaporator 220, and the condensate flows down the fins and collects in the drip tray 410. As the condensate accumulates, the water level sensor 460 senses the rising liquid level in real time. When the condensate in the drip tray 410 reaches the first preset water level, the controller receives a high water level trigger signal and then issues a start command to drive the water pump 420 to start working. The water pump 420 pressurizes the condensate in the drip tray 410 and delivers it to the spray element 430, which sprays the water onto the surface of the condenser 120 to achieve evaporative cooling.

[0072] During the continuous drainage process of water pump 420, the water level in the water receiving pan 410 gradually decreases. When the water level sensor 460 detects that the liquid level has dropped to the second preset water level, the controller receives a low water level feedback signal and immediately issues a stop command, cutting off the power to water pump 420 and suspending the delivery of condensate. The second preset water level is higher than the bottom of the water receiving pan 410, leaving a certain safety margin to prevent the water pump 420 from running dry, which could cause equipment damage or increased noise. The first preset water level and the second preset water level form a control range, avoiding frequent start-stop of water pump 420 and extending the service life of water pump 420.

[0073] This dual-level water control mechanism enables on-demand water supply and circulation start / stop of the spray assembly 400, ensuring that the water tray 410 will neither overflow due to excessive water accumulation nor shut off the water supply due to excessive drainage. By dynamically matching the condensate generation rate and the spray consumption rate, it always maintains a highly efficient and safe operating range.

[0074] In some embodiments, the window air conditioning unit 10 also includes a protective pipe 450, in which water pipes 440 located outside the outdoor unit housing 110 and the indoor unit housing 210, and refrigerant pipes 101 located outside the outdoor unit housing 110 and the indoor unit housing 210 are all disposed within the protective pipe 450.

[0075] The window air conditioning unit 10 is further equipped with a protective tube 450, which is used to centrally cover and protect the pipes that pass through the indoor and outdoor environments. The protective tube 450 is a flexible or semi-rigid tubular structure, usually made of weather-resistant materials such as rubber, silicone, polyvinyl chloride or thermoplastic elastomers. It has good UV resistance, high and low temperature resistance, waterproof and dustproof properties and anti-aging properties, and can adapt to complex outdoor climate conditions.

[0076] The water pipe 440 and refrigerant pipe 101, located outside the outdoor unit casing 110 and the indoor unit casing 210, are both installed inside the protective pipe 450. The water pipe 440 is used to transport the condensate collected by the water tray 410 of the indoor unit to the spray nozzle 430 on the outdoor unit side. The refrigerant pipe 101 connects the heat exchange components in the indoor unit 200 and the outdoor unit 100 to realize the circulation of refrigerant between the evaporator 220, the compressor 240 and the condenser 120.

[0077] The protective tube 450 houses the water pipe 440 and refrigerant pipe 101 in parallel within its internal channel, forming an integrated pipe protection structure. This integrated arrangement not only reduces the dispersed layout of external pipes and improves the overall neatness of the machine's appearance, but also effectively avoids the risk of damage and leakage caused by mutual friction, bending, or external pressure on the pipes. In other embodiments, the protective tube 450 has a partition cavity inside, placing the water pipe 440 and refrigerant pipe 101 in separate receiving spaces to prevent cross-contamination in case of liquid leakage, while also reducing vibration transmission and noise coupling.

[0078] Both ends of the protective pipe 450 are sealed to the wiring / pipe openings on the outer casing 110 and the inner casing 210, respectively. The connection points use clamps, sealing rings, or adhesive injection to ensure that external moisture, insects, or dust cannot enter the equipment through the gaps in the pipe wall. The protective pipe 450 is laid along the wall or window frame and can be fixed in sections using cable ties, brackets, or fixing clips to keep the pipeline route smooth and avoid excessive bending that could cause internal flow channel deformation due to pressure.

[0079] In some embodiments, the protective tube 450 is a rubber hose or a silicone hose. The protective tube 450 uses a rubber hose or a silicone hose as its main material. The rubber hose is made of natural or synthetic rubber through a vulcanization process, possessing excellent elasticity, flexibility, and impact resistance. It can withstand external compression, bending, and slight stretching, effectively buffering stress transmission caused by structural deformation or equipment vibration. The rubber hose has a certain degree of surface roughness and anti-slip properties, facilitating fixed installation on walls or window frames and preventing slippage.

[0080] Silicone tubing is made from high-purity silicone polymer, exhibiting excellent resistance to high and low temperatures. It maintains stable physical properties within a temperature range of -50℃ to 200℃, and is not prone to hardening, cracking, or softening and deformation. Silicone tubing also possesses strong resistance to ultraviolet radiation, ozone, and atmospheric aging, maintaining good sealing performance and structural integrity even after long-term exposure to outdoor sun and rain.

[0081] In some embodiments, the outlet of the drip tray 410 is located at its lowest point. This placement of the outlet ensures efficient and complete drainage of condensate. The drip tray 410 has a basin-like or trough-like structure and is installed inside the indoor unit housing 210 of the air conditioner indoor unit 200, directly below the evaporator 220. It collects all the condensate generated when air flows through the low-temperature evaporator 220. The bottom surface of the drip tray 410 is designed with an inclined structure, gradually decreasing in slope from the edge towards the center or outlet, forming a natural flow gradient.

[0082] The outlet is located at the lowest point of the sloping bottom surface, which is the most advantageous position for gravity drainage of the entire water receiving pan 410. When condensate falls into the water receiving pan 410, it automatically collects along the sloping bottom surface to the outlet area under the action of gravity, avoiding water accumulation and stagnation. This helps to maximize the use of gravity to achieve gravity-driven drainage, ensuring continuous drainage without the need for additional power.

[0083] The outlet is connected to the inlet of the water pump 420 via a pipe interface, forming the starting point of the condensate delivery channel. The inner diameter of the outlet is optimized for fluid dynamics to meet the drainage requirements at the maximum condensate generation rate while preventing water seal failure or foreign object ingress due to excessive diameter. In other embodiments, a filter or grille is installed inside the outlet to intercept dust, impurities, or microbial flocs, preventing blockage of subsequent pipes or damage to the water pump 420.

[0084] By placing the water outlet at the lowest point of the drip tray 410, the existence of drainage dead zones is effectively reduced, preventing local water accumulation that could breed bacteria, mold, or produce odors. During periods when the window air conditioning unit 10 is not in operation, residual water in the drip tray 410 can be largely drained, reducing the humidity conditions conducive to microbial growth.

[0085] Furthermore, this structural design improves the water intake efficiency of the water pump 420. Upon startup, the water pump 420 can quickly draw in sufficient water, preventing dry running, overheating, or cavitation due to insufficient water intake, thus extending its service life. Even under low water level conditions, the outlet can still provide a stable water supply, ensuring the spray assembly 400 operates normally according to its set logic.

[0086] In some embodiments, the projection of the evaporator 220 falls within the condensate tray 410 along the height direction of the outdoor unit casing 110. Specifically, when viewed along the height direction of the outdoor unit casing 110, the projection of the evaporator 220 on the vertical plane falls entirely within the opening of the condensate tray 410, allowing condensate generated on the surface of the evaporator 220 to drip directly or be guided along the fins into the condensate tray 410 under gravity, achieving efficient and complete collection.

[0087] The drip tray 410 is installed inside the indoor unit housing 210, directly below the evaporator 220, and its upper surface opening area is greater than or equal to the horizontal projected area of ​​the bottom surface of the evaporator 220. The edge of the drip tray 410 extends upward to form a sidewall, the height of which is sufficient to accommodate the peak condensate flow without overflowing. The bottom of the drip tray 410 is provided with a guide slope, and the entire tray slopes from the outer edge towards the center or outlet, guiding the condensate to the predetermined drainage position.

[0088] The evaporator 220 is installed laterally within the indoor unit housing 210. Its fin structure features a multi-layered corrugated arrangement to increase the contact area with indoor air. When humid indoor air flows over the surface of the low-temperature evaporator 220, the air temperature drops below the dew point, causing water vapor to condense into liquid water and accumulate as water droplets on the fin surface. Under the combined action of gravity and airflow disturbance, the water droplets detach from the lower end of the fins and fall vertically or nearly vertically.

[0089] Since the projection of the evaporator 220 completely covers the receiving area of ​​the drip tray 410, all falling condensate is effectively intercepted by the drip tray 410, preventing water droplets from splashing onto the outside of the drip tray 410 or dripping onto other parts of the indoor unit casing 210. This helps to eliminate blind spots in condensate collection, improves water resource recovery rate, and prevents problems such as electrical components getting damp, insulation performance deterioration, or metal structure corrosion caused by water leakage.

[0090] In other embodiments, the lateral dimension of the water collection tray 410 extends beyond the projected boundary of the evaporator 220 by a certain distance in both length and width directions, forming a safety margin to cope with slight tilting or vibration displacement that may occur during the transportation or installation of the air conditioner, ensuring reliable water collection capacity even under non-ideal operating conditions.

[0091] In some embodiments, the spray element 430 is a nozzle or an atomizer. Specifically, the spray element 430 uses a nozzle or atomizer as its core water outlet device to controllably spray condensate onto the surface of the condenser 120, achieving efficient evaporative cooling. The nozzle or atomizer is installed inside the outdoor unit housing 110 of the air conditioner outdoor unit 100, with its position corresponding to the heat exchange area of ​​the condenser 120, ensuring that the spray coverage matches the heat dissipation requirements.

[0092] The nozzle is a miniature pressure-type water outlet device, internally equipped with a guide chamber and a converging nozzle. It utilizes water pressure to cut condensate into fine droplets and spray them out in a directional manner. The water outlet pattern of the nozzle is a fan-shaped, cone-shaped, or solid columnar jet, the specific type selected according to the structural dimensions of the condenser 120 and the air duct layout. Multiple nozzles are evenly distributed along the length of the condenser 120, forming a continuous spray band to ensure uniform wetting of the condenser 120 surface. The nozzle body is made of corrosion-resistant plastic or stainless steel, possessing good anti-clogging performance and long-term operational stability.

[0093] The atomizer is a high-efficiency water mist generator that breaks down condensed water into micron-sized mist particles through ultrasonic vibration, high-pressure gas-liquid mixing, or centrifugal rotation. The water mist produced by the atomizer has a larger specific surface area and stronger air penetration capability, enabling rapid evaporation even at lower water supply flow rates, significantly improving evaporative cooling efficiency. Especially in high-temperature and low-humidity environments, the atomizer can fully utilize the cooling potential of latent heat of vaporization, effectively reducing the average temperature of the condenser (120°C) and the high-pressure side pressure of the system.

[0094] The nozzle or atomizer is connected to the water pump 420 via a water pipe 440, receiving condensate collected and pressurized by the water tray 410. The water supply pipe 440 is equipped with a pressure regulating valve or throttling structure to ensure that the water pressure entering the spray element 430 is within the optimal operating range, preventing splashing due to excessive pressure or insufficient spraying due to insufficient pressure. In some embodiments, the nozzle or atomizer is equipped with a removable filter screen to intercept impurities in the water, prevent nozzle clogging, and extend maintenance intervals.

[0095] In related technologies, window air conditioning equipment is often installed using brackets. These brackets rely solely on friction or gravity to tighten, lacking an effective locking mechanism. Over long-term use, they are prone to loosening due to vibrations from the operation of the window air conditioning equipment, external wind and rain impacts, or human contact, posing a safety hazard.

[0096] In view of this, please refer to Figure 1 , Figure 5 and Figure 6 In some embodiments, the window frame 300 includes a first fixing bracket 310, a second fixing bracket 320, and a locking member. The first fixing bracket 310 is used to connect the window air conditioning unit 10. The second fixing bracket 320 is connected to the first fixing bracket 310 and is used to engage with the window frame. The locking member is connected to the second fixing bracket 320 and locks the second fixing bracket 320 to the window frame.

[0097] Thus, the window frame 300 of this application includes a first fixing bracket 310, a second fixing bracket 320, and a locking component, constructing a hierarchical installation structure with pre-positioning and active locking functions. The second fixing bracket 320 is connected to the window frame via a plug-in joint, enabling rapid alignment and temporary fixation in the initial stage of installation, forming a stable pre-positioned state, which facilitates users in adjusting the spatial position and horizontal orientation of the air conditioner outdoor unit 100. Furthermore, by operating the locking component, the second fixing bracket 320 is mechanically locked to the window frame, further establishing a rigid connection. This effectively prevents the equipment from loosening, slipping, or falling off due to operational vibration, external wind and rain impact, or human contact, avoiding the passive fixing mode of traditional brackets that rely solely on friction or gravity pressure. This significantly improves the convenience of the installation process and the reliability of the final connection.

[0098] In addition, the combination of pre-positioning and locking functions not only reduces installation difficulty and improves assembly efficiency, but also significantly enhances the overall tensile, shear and overturning resistance of the window frame 300, ensuring safety and stability for long-term use.

[0099] The first mounting bracket 310, as the main load-bearing component, is firmly connected to the bottom or side wall of the outdoor unit 100 of the air conditioner by screws, clips, or welding, and is responsible for transferring the weight of the entire unit to the window frame structure. The first mounting bracket 310 is made of high-strength metal materials, such as galvanized steel plates or aluminum alloy profiles, and has good mechanical properties and corrosion resistance, and can withstand static loads and dynamic vibrations for a long time.

[0100] The second fixing bracket 320 is fixedly connected to the first fixing bracket 310, together forming a complete support frame. The second fixing bracket 320 is provided with a plug-in part that matches the window frame structure. This plug-in part can be in the form of a protrusion, guide rail, clip, or slider, and can be inserted into the sliding groove, track, or reserved hole of the window frame. During installation, after aligning the window frame 300 with the window frame, the user pushes the second fixing bracket 320 to complete the plug-in engagement with the window frame, achieving quick positioning and initial fixation. This plug-in engagement provides stable support without applying additional locking force, forming a reliable pre-positioned state.

[0101] Establishing the pre-positioning provides a fundamental guarantee for subsequent operations. After installation, users can check the levelness, front-to-back position, and wall fit of the outdoor unit 100, and make fine adjustments to ensure the equipment is in the optimal installation posture. This process requires no additional support tools, is simple to operate, and significantly improves installation efficiency and accuracy.

[0102] The locking element is installed on the second fixing bracket 320 to achieve final rigid locking after pre-positioning. The locking element can be a knob-type bolt, lever lock, push-pull latch, or elastic latch, etc., and is engaged with the mating hole, edge, or lock groove on the window frame by rotation, pressing, or sliding. The locking action generates an active clamping force or limiting constraint, which tightly fixes the second fixing bracket 320 to the window frame, preventing it from sliding in the horizontal direction or coming off in the vertical direction.

[0103] In some embodiments, there are multiple window frames 300, with window frames 300 provided on both adjacent sides of the air conditioner outdoor unit 100, which helps to stably install the air conditioner outdoor unit 100 onto the window structure. In this way, by symmetrically or asymmetrically arranging the window frames 300 on different sides, a more balanced load distribution and higher installation stability are achieved.

[0104] Multiple window frames 300 are distributed along the horizontal and vertical edges of the air conditioner outdoor unit 100, located in adjacent side combination areas such as the top and left sides, top and right sides, or left and bottom sides of the outdoor unit. When the air conditioner outdoor unit 100 is installed at a window opening, the window frames 300 on different sides simultaneously cooperate with different frame segments of the window frame. For example, one side connects to the lower frame of the windowsill, and the other side connects to the vertical frame of the side window, forming a multi-point, multi-directional constraint system, effectively preventing the outdoor unit from tilting, slipping, or falling under the action of gravity, wind, or vibration. In other embodiments, window frames 300 can be provided on all four sides of the air conditioner outdoor unit 100.

[0105] The window frames 300 installed on both sides together bear the overall weight of the air conditioner outdoor unit 100 and distribute the load to multiple stress areas of the window frame, thereby helping to avoid problems such as window frame deformation, excessive local stress or loose connection caused by concentrated force on one side.

[0106] In some embodiments, the first fixing frame 310 includes a fixed plate 311 and a reinforcing flange 312 connected to each other. The fixed plate 311 is used to connect the outdoor unit 100 of the window air conditioning unit 10, and the reinforcing flange 312 is bent relative to the fixed plate 311. The first fixing frame 310 is composed of the fixed plate 311 and the reinforcing flange 312, which are connected by integral molding or welding process to form a composite structure with enhanced rigidity.

[0107] The reinforcing flange 312 extends from the edge region of the fixed plate 311 at a specific angle, forming a lateral support structure that is not parallel to the fixed plate 311. The bending direction of the reinforcing flange 312 can be designed as vertical, oblique, or stepped bends according to the installation space and stress requirements. Its cross-section is L-shaped, U-shaped, or cap-shaped, which can effectively improve the overall bending resistance and local stability of the first fixing frame 310. The connection area between the reinforcing flange 312 and the fixed plate 311 is rounded to reduce stress concentration and improve fatigue life.

[0108] The presence of the reinforcing flange 312 significantly enhances the structural rigidity of the first fixing frame 310, making it less prone to plastic deformation or torsion when bearing the weight of the air conditioner outdoor unit 100 and operational vibrations. When external forces are applied to the fixing plate 311, the reinforcing flange 312 acts as a lateral support rib, providing additional moment of inertia and bending moment resistance, suppressing the deflection and vibration of the fixing plate 311. Thus, without significantly increasing the amount of material used, a balance between lightweight and high strength is achieved, which helps to reduce the weight of the window frame 300 and improve safety.

[0109] In some embodiments, the fixing plate 311 is provided with a plurality of first screw mounting holes 313 for mating with the window air conditioning unit 10. The first screw mounting holes 313 serve as mechanical connection interfaces, enabling reliable assembly between the fixing plate 311 and the outdoor unit housing 110 of the window air conditioning unit 10. The plurality of first screw mounting holes 313 are distributed on the surface of the fixing plate 311, arranged according to a preset geometric layout, forming a hole array that matches the mounting position on the bottom or side wall of the outdoor unit 100, thereby helping to ensure uniform distribution of connection force and improving connection stability and vibration resistance.

[0110] The first screw mounting hole 313 is a through hole penetrating the thickness of the fixing plate 311, and its diameter is adapted to the nominal diameter of the screw or bolt used. Some of the first screw mounting holes 313 are designed as countersunk holes or counterbored holes, allowing the screw head to be fully embedded in the hole, avoiding protrusion from the surface of the fixing plate 311, preventing interference with other components or affecting the appearance. During assembly, the screw passes through the first screw mounting hole 313 and is screwed into the corresponding threaded hole on the housing of the air conditioner outdoor unit 100, or is locked with a nut to form a firm rigid connection.

[0111] Multiple first screw mounting holes 313 are distributed in a matrix along the length and width of the fixing plate 311, covering the main stress areas of the air conditioner outdoor unit 100. This effectively disperses the overall weight of the air conditioner outdoor unit 100 and the dynamic load generated by operating vibration, avoiding local stress concentration that could lead to metal fatigue or loosening of connections. For heavier air conditioner outdoor units 100, increasing the number of mounting holes can further improve connection strength.

[0112] In other embodiments, a reinforcing rib or boss structure is provided around the first screw mounting hole 313 to improve the bearing capacity and tensile strength of the hole edge area, helping to prevent plate deformation or thread tearing during screw tightening. Simultaneously, the hole edges are deburred and chamfered to facilitate screw insertion and improve assembly efficiency.

[0113] In some embodiments, along the width direction of the fixed plate 311, the second fixing bracket 320 is provided with first screw mounting holes 313 on both sides, so that the first screw mounting holes 313 are distributed at both ends of the transverse span of the fixed plate 311, forming a connection support structure with a large span, which effectively enhances the stability and torsional resistance of the connection between the fixed plate 311 and the air conditioner outdoor unit 100.

[0114] The first screw mounting holes 313 are located on the fixed plate 311 in the area adjacent to or overlapping with the second fixing bracket 320, and are symmetrically or substantially symmetrically distributed on the left and right sides of the second fixing bracket 320 in the width direction. This helps to anchor the screws at a position away from the center line of the structure. When the air conditioner outdoor unit 100 is subjected to gravitational load or torsional moment caused by operating vibration, the connection points on both sides can jointly resist the off-center load and prevent the fixed plate 311 from warping, tilting or detaching on one side.

[0115] Multiple first screw mounting holes 313 can be configured as one or more on each side, and their arrangement can be optimized according to the structural strength of the air conditioner outdoor unit 100 housing and the location of the mounting interface. The multiple first screw mounting holes 313 precisely correspond to the mounting supports on the bottom or side wall of the air conditioner outdoor unit 100, ensuring that the screws can be smoothly inserted and tightened during assembly. After the screws are connected, the two edges of the fixing plate 311 are sufficiently constrained, significantly improving the overall connection rigidity and preventing loosening or fatigue cracking caused by uneven local stress.

[0116] In some embodiments, the second fixing frame 320 includes a first connecting part 321, a second connecting part 322 and a third connecting part 323 connected in sequence. The second connecting part 322 is connected to the first fixing frame 310. The first connecting part 321 and the third connecting part 323 are arranged opposite to each other and spaced apart. The first connecting part 321 and the third connecting part 323 cooperate to form a plug-in end, which is plugged into the plug-in groove of the window frame.

[0117] The second fixing frame 320 consists of a first connecting part 321, a second connecting part 322, and a third connecting part 323, which are connected sequentially to form an integral support structure. The first connecting part 321, the second connecting part 322, and the third connecting part 323 are manufactured by metal bending, welding, or integral molding processes, possessing good structural continuity and mechanical strength, and capable of withstanding multi-directional loads during installation and operation.

[0118] The second connecting part 322 serves as an intermediate connecting section and is directly and fixedly connected to the first fixing frame 310. The connection method includes screw fastening, snap-fit ​​engagement, or welding, ensuring a rigid connection between the second fixing frame 320 and the first fixing frame 310, thus achieving effective force transmission. The extension direction of the second connecting part 322 is adapted to the mounting plane of the fixing plate 311, ensuring that the entire window frame 300 maintains the correct spatial posture after assembly, avoiding installation difficulties or stress concentration due to angular deviations.

[0119] The first connecting portion 321 and the third connecting portion 323 are located on both sides of the second connecting portion 322 and extend in the same direction, forming a double-arm structure that is arranged oppositely and at intervals. The first connecting portion 321 and the third connecting portion 323 maintain a parallel or approximately parallel spatial relationship, with a certain distance between them, which matches the width and structural features of the insertion groove on the window frame. The first connecting portion 321 and the third connecting portion 323 together constitute the insertion end, and the overall outline of the insertion end is adapted to the inner cavity size of the window frame slide rail, sliding window groove, or reserved installation guide groove.

[0120] The plug-in end is assembled with the plug-in slot of the window frame by sliding insertion. During installation, the user aligns the plug-in end with the entrance of the plug-in slot and pushes it in horizontally or at an angle until it is fully embedded. This plug-in engagement provides axial positioning and lateral constraint between the second fixing bracket 320 and the window frame, offering initial support and limiting functions. After plugging in, the window frame 300 achieves a stable pre-positioned state, providing a basis for the spatial calibration of the air conditioner outdoor unit 100 and subsequent locking operations.

[0121] The outer edges of the first connecting portion 321 and the third connecting portion 323 are rounded or chamfered to reduce frictional resistance during insertion and prevent scratches on the window frame surface. In some embodiments, guide bevels are provided at the ends of the first connecting portion 321 and the third connecting portion 323 to further improve alignment accuracy and assembly smoothness, which is especially suitable for scenarios with minor dimensional tolerances or installation angle deviations.

[0122] This double-arm plug-in structure has a high resistance to lateral displacement. When the air conditioner vibrates during operation or is subjected to external lateral forces, the first connecting part 321 and the third connecting part 323 jointly bear the shear load, dispersing the stress distribution and preventing deformation or dislodgement caused by single-point stress. At the same time, the spaced double connecting parts form an enclosing constraint, effectively suppressing the plug end from twisting or warping within the slot.

[0123] In some embodiments, the locking element passes through the first connecting portion 321, the second connecting portion 322, and the window frame, thereby facilitating rigid locking between the window frame 300 and the window frame. This through-path passes through the critical connection area of ​​the second fixing bracket 320 and forms a through-connection with the window frame structure, integrating multiple components into a stable load-bearing whole, which helps to improve the overall tensile, shear, and vibration resistance.

[0124] The first connecting part 321 has a first through hole, the second connecting part 322 has a second through hole, and the window frame has a third through hole at a corresponding position. After the second fixing bracket 320 is inserted and engaged with the window frame, the first through hole, the second through hole, and the third through hole are spatially aligned and arranged coaxially or substantially coaxially to form a continuous through channel. The locking element, as a mechanical locking element, passes through the first connecting part 321, the second connecting part 322, and the window frame sequentially along this channel to achieve simultaneous locking of the multi-layer structure.

[0125] The locking element uses bolts, pins, or locking rods with external threads, and has sufficient tensile strength and shear resistance. The locking element is inserted from the outside of the first connecting part 321, passes through the first through hole, enters the second connecting part 322, then passes through the second and third through holes, and is finally fixed on the outside of the window frame by a nut, elastic retaining ring, or self-locking mechanism.

[0126] In some embodiments, the second connecting part 322 is provided with a plurality of second screw mounting holes 322a, and the first fixing bracket 310 is provided with a plurality of third screw mounting holes 314, each third screw mounting hole 314 corresponding to a second screw mounting hole 322a and cooperating with the window air conditioning unit 10.

[0127] The second screw mounting hole 322a and the third screw mounting hole 314 correspond one-to-one in the assembled state. The screws pass through to achieve a firm connection between the second connecting part 322 and the first fixing frame 310, thus forming a key assembly interface inside the window frame 300, and undertaking the task of transferring the load of the air conditioner outdoor unit 100 from the first fixing frame 310 to the second fixing frame 320.

[0128] The second screw mounting holes 322a are evenly distributed on the surface of the second connecting part 322, arranged in a linear array or matrix along its length or width. Each second screw mounting hole 322a is a through hole structure, with a diameter matching the specification of the screw used, supporting the installation of standard fasteners. Some holes are designed as countersunk holes or flat holes, allowing the screw head to be fully inserted, keeping the connecting surface flat and avoiding interference with other components. The second connecting part 322 is made of high-strength metal material, with local thickening or reinforcing ribs around the holes to improve compressive and tensile strength and prevent deformation or tearing under long-term load.

[0129] The third screw mounting hole 314 is located in the connection area of ​​the first fixing bracket 310, and its position is precisely aligned with the second screw mounting hole 322a on the second connecting part 322. Multiple third screw mounting holes 314 and multiple second screw mounting holes 322a form a multi-point alignment connection, ensuring tight contact and uniform force distribution between the first fixing bracket 310 and the second connecting part 322. During assembly, screws are sequentially passed through the third screw mounting holes 314 and the corresponding second screw mounting holes 322a, and screwed into the nut or directly locked into the preset threaded hole to complete the mechanical fastening. This connection method has high shear and tensile strength, and can effectively resist the vibration and dynamic loads generated during air conditioning operation.

[0130] In some embodiments, one side of the second connecting portion 322 is fitted and connected to one side of the first fixing frame 310. Specifically, one surface of the second connecting portion 322 is fitted and connected to one surface of the first fixing frame 310. This connection method achieves a large-area physical fit through direct contact between the planar or curved surfaces of the two components, significantly increasing the friction and structural stability of the contact area, and providing a good foundation for subsequent mechanical fastening.

[0131] The contact surfaces of the mating connection are processed to ensure a smooth surface with a surface roughness controlled within a reasonable range, guaranteeing that there are no obvious gaps or warping between the second connection part 322 and the first fixing bracket 310. In the assembled state, the mating surfaces of the two components are tightly fitted, forming a continuous load-bearing interface that effectively transmits the gravitational load, vibration stress, and external impact force generated by the outdoor unit 100. This mating structure not only improves the connection rigidity but also suppresses stress concentration caused by localized point contact, reducing the risk of metal fatigue.

[0132] The contact direction between the second connecting part 322 and the first fixing frame 310 is designed to be vertical, horizontal, or inclined depending on the installation layout. The contact area covers the main connection section between the second connecting part 322 and the first fixing frame 310, ensuring a short and continuous force transmission path. In other embodiments, the contact surface may be provided with a positioning boss or groove structure to achieve rapid alignment during assembly, prevent misalignment or displacement, and improve installation accuracy and efficiency.

[0133] The mating connection, combined with the screw fastening structure, works in tandem. Multiple second screw mounting holes 322a and third screw mounting holes 314 are respectively located on the mating surfaces of the second connecting part 322 and the first fixing bracket 310. Screws pass through the corresponding holes to press and fix the two components together. The presence of the mating surface ensures that the screw preload is evenly distributed throughout the contact area, preventing increased bending moment due to cantilever or gaps, and improving the overall connection's resistance to deformation and long-term stability.

[0134] In some embodiments, both the first mounting bracket 310 and the second mounting bracket 320 are sheet metal parts. These sheet metal parts are formed from metal sheets through processes such as stamping, bending, shearing, and welding, possessing good structural plasticity and mechanical properties, and meeting the comprehensive requirements of strength, rigidity, and lightweight for the mounting bracket of the window air conditioning unit 10. Commonly used metal materials include cold-rolled steel sheets, galvanized steel sheets, or aluminum alloy sheets, which have high yield strength, excellent corrosion resistance, and a mature processing technology foundation.

[0135] The first mounting bracket 310, as the core load-bearing component connecting the outdoor unit 100 of the air conditioner, is composed of single-layer or multi-layer sheet metal parts. The sheet metal structure, through the design of partial flanging, ribs, or concave-convex reinforcing grooves, significantly improves bending and torsional stiffness without substantially increasing material thickness. The mounting plate 311, reinforcing folded edge 312, and the area of ​​the third screw mounting hole 314 on the first mounting bracket 310 are all achieved through integrated sheet metal forming, reducing welding seams and improving the overall structural integrity. This manufacturing method facilitates mass production and reduces material waste and processing costs.

[0136] The second fixing bracket 320 is also manufactured using sheet metal technology. Its first connecting part 321, second connecting part 322, and third connecting part 323 are formed into a stable frame structure through continuous bending. The deformable characteristics of sheet metal parts allow the second fixing bracket 320 to be precisely constructed with plug-in ends for mating with the window frame, and to achieve multi-directional extension connection paths in confined spaces. The second screw mounting holes 322a on the second connecting part 322 are precisely drilled using a stamping process, resulting in high hole consistency and facilitating rapid alignment and assembly with the first fixing bracket 310.

[0137] The connections between sheet metal parts are made using screw fastening, spot welding, or riveting to ensure a firm fit and ease of disassembly and maintenance. In the mating connection area, the contact surfaces of the two sheet metal parts are smoothed to ensure a tight, gapless fit. Reinforcing plates or increased sheet metal thickness are used in some critical load-bearing areas to address fatigue issues under long-term loads and vibration.

[0138] In related technologies, the air inlet and outlet of the outdoor unit of a window air conditioner are located on different sides of the outdoor unit casing. During the installation of the window air conditioner, it is necessary to ensure that the two sides of the outdoor unit (the two sides where the air inlet and outlet are respectively located) are not blocked, which makes the installation of the window air conditioner 10 more complicated.

[0139] In view of this, please refer to Figure 1In some embodiments, the outdoor unit housing 110 has a receiving space and an outdoor unit air inlet 102 and an outdoor unit air outlet 103 communicating with the receiving space. The outdoor unit air inlet 102 and the outdoor unit air outlet 103 are located on the same side of the outdoor unit housing 110. The window air conditioning unit 10 also includes an outdoor unit fan 130. The condenser 120 and the outdoor unit fan 130 are both disposed within the receiving space. The outdoor unit fan 130 is used to drive air from the outdoor unit air inlet 102 to the condenser 120, and from the condenser 120 to the outdoor unit air outlet 103.

[0140] Thus, compared to air conditioner outdoor units in related technologies, the air conditioner outdoor unit 100 provided in this application, by placing the outdoor unit air inlet 102 and outdoor unit air outlet 103 on the same side of the outdoor unit casing 110, ensures that air intake and exhaust are concentrated on one side of the outdoor unit casing 110, significantly reducing the ventilation requirements for the installation space. In actual installation, it is not necessary to ensure sufficient open space on both sides of the air conditioner outdoor unit 100, avoiding poor heat dissipation problems caused by walls, window frames, sunshades, or adjacent buildings, greatly improving installation flexibility and applicability.

[0141] It is understandable that during the installation of the outdoor unit 100, since the outdoor unit air inlet 102 and the outdoor unit air outlet 103 are located on the same side of the outdoor unit casing 110, the installer can quickly complete the selection of the installation location of the outdoor unit 100 by simply setting the outdoor unit air inlet 102 and the outdoor unit air outlet 103 away from the window.

[0142] In some embodiments, the accommodating space is enclosed by the outer unit housing 110. The rotation of the outer unit impeller 130 is driven by an external power source, specifically by a motor providing rotational power, which is transmitted to the impeller via a transmission structure or direct connection, causing it to rotate at high speed to generate airflow power.

[0143] In the window air conditioning unit 10, the outdoor unit fan 130 is typically connected to a DC motor or an AC single-phase motor. The motor is installed inside the outdoor unit housing 110, located to the side or center of the duct space 141, and is securely supported by a fixed bracket to prevent vibration or displacement during operation. The motor's output shaft extends axially and is directly connected to the hub of the outdoor unit fan 130, forming a direct-drive structure. When the motor is powered on and started, the stator windings generate a rotating magnetic field, driving the rotor to rotate the output shaft, which in turn causes the outdoor unit fan 130, which is fixed to it, to rotate synchronously. Of course, the outdoor unit fan 130 and the indoor unit fan 230 are driven by different motors.

[0144] Please see Figure 1 , Figure 2 and Figure 7In some embodiments, the outdoor unit 100 of the air conditioner also includes a wind pressure plate 140, which is disposed in the accommodating space and cooperates with the condenser 120 to form an air duct space 141. The outdoor unit impeller 130 is disposed in the air duct space 141, and the air duct space 141 is connected to the outdoor unit air inlet 102 and the outdoor unit air outlet 103. The volume of the air duct space 141 is smaller than the volume of the accommodating space.

[0145] The air pressure plate 140 and the condenser 120 together form a closed or semi-closed air duct space 141. The air pressure plate 140 is a metal or plastic plate structure with a certain rigidity. Its outline matches the leeward side of the condenser 120. It is fixed to the inner wall or bracket of the outdoor unit housing 110 by snap-fit, screw connection or welding. It is stable in position and not easily displaced by vibration.

[0146] The air pressure plate 140 and the condenser 120 maintain a predetermined distance, and together they form a continuous cross-section and a clearly defined airflow space 141. The airflow space 141 guides and constrains the flow path of the cooling airflow, ensuring that the air flows orderly along the designed direction when passing through the condenser 120, avoiding airflow diffusion, backflow, or short-circuiting. The boundary of the airflow space 141 is jointly defined by the air pressure plate 140, the condenser 120 body, and the partial inner wall of the outdoor unit casing 110, forming a low-leakage, highly directional airflow channel, significantly improving the efficiency of the air system.

[0147] The outdoor unit fan 130 is located within the air duct space 141, between the air pressure plate 140 and the outdoor unit air outlet 103. Driven by a motor, the outdoor unit fan 130 rotates at high speed, generating negative pressure to draw in outside air and pressurizing the hot air flowing through the condenser 120 before discharging it.

[0148] The air duct space 141 is fluidly connected to the outdoor unit's air inlet 102 and air outlet 103 through its structural design. After entering through the outdoor unit's air inlet 102, the outside air first flows into the inlet area of ​​the air duct space 141. Then, under the guidance of the outdoor unit's fan wheel 130, it passes vertically or obliquely through the gaps between the condenser 120 fins. After completing heat exchange, the hot air enters the outlet section of the air duct space 141 and is discharged outdoors through the outdoor unit's air outlet 103.

[0149] The overall volume of the duct space 141 is smaller than the total internal space of the outdoor unit casing 110, occupying only a portion of the space, which helps to separate and optimize functional areas. The duct space 141 focuses on airflow organization and heat exchange enhancement, while the remaining area can be used for other components such as pipes and electrical boxes, avoiding mutual interference. The rational division of space improves the space utilization rate inside the outdoor unit casing 110, supports multi-system integration, and is conducive to the miniaturization and compactness of the entire unit.

[0150] In some embodiments, the air pressure plate 140 includes a side plate 142, a top plate 143, and a bottom plate 144. The top plate 143 and the bottom plate 144 are respectively disposed at the top and bottom of the side plate 142. The side plate 142 extends circumferentially along the condenser 120. The side plate 142, the bottom plate 144, and the condenser 120 cooperate to form an air duct space 141.

[0151] The air pressure plate 140 consists of three parts: a side plate 142, a top plate 143, and a bottom plate 144. The side plate 142, top plate 143, and bottom plate 144 are connected by bending, welding, or integral molding processes to form a flow guide assembly with an enclosing structure. The side plate 142, as the main body of the air pressure plate 140, extends circumferentially along the condenser 120, conforming to the outer contour of the condenser 120 and covering the side boundary area of ​​the condenser 120. The extension path of the side plate 142 matches the shape of the condenser 120 and can be rectangular, L-shaped, or polygonal, ensuring a continuous and well-sealed interface with the condenser 120.

[0152] The top plate 143 is connected to the upper edge of the side plate 142 and extends towards the condenser 120, partially covering the top area of ​​the condenser 120 or connecting to the top wall of the outdoor unit casing 110. The bottom plate 144 is connected to the lower edge of the side plate 142 and extends towards the condenser 120, partially covering the bottom area of ​​the condenser 120 or connecting to the bottom plate 144 of the outdoor unit casing 110. The top plate 143 and the bottom plate 144 respectively block the leakage path of the airflow in the vertical direction, preventing the cooling air from bypassing the condenser 120 from above or below and being discharged without fully participating in heat exchange.

[0153] Side plate 142, top plate 143, bottom plate 144, and condenser 120 together enclose a closed or semi-closed air duct space 141. This air duct space 141, located inside the accommodating space, is specifically designed to guide the cooling airflow through the condenser 120 in an orderly manner and direct it to the outdoor unit's air outlet 103. The inlet of the air duct space 141 connects to the outdoor unit's air inlet 102, and the outlet connects to the outdoor unit's air outlet 103, forming a complete airflow channel. Under the constraint of the air pressure plate 140, the cooling air must pass through the fin gaps of the condenser 120 to complete heat exchange, effectively preventing airflow short-circuiting, backflow, or bypassing, and significantly improving heat exchange efficiency.

[0154] The cross-sectional shape of the duct space 141 is optimized based on the layout of the condenser 120 and the performance of the outdoor unit impeller 130. It can be rectangular, trapezoidal, or tapered to ensure uniform airflow velocity distribution and reduce local eddies and pressure loss. The outdoor unit impeller 130 is located within the duct space 141, typically on the leeward side or outlet of the condenser 120, occupying a critical position in airflow organization. The pressure plate 140 provides a stable intake airflow field for the outdoor unit impeller 130, improving the fan's work capacity and operational stability.

[0155] In other embodiments, the edges of the side plates 142, top plate 143, and bottom plate 144 are provided with elastic sealing strips, flanged pressure plates, or snap-fit ​​structures to achieve a tight fit with the side plates 142, end plates, or outdoor unit housing 110 of the condenser 120. This sealing structure further reduces the air leakage rate of the duct space 141. The wind pressure plate 140 is made entirely of thin metal sheet or engineering plastic, possessing good rigidity and corrosion resistance, and can withstand high temperature, high humidity, and vibration environments for extended periods.

[0156] The structure of the air pressure plate 140 enables all-round guidance and restriction of cooling airflow. Through multi-faceted enclosures on the sides, top, and bottom, it constructs an efficient and low-resistance air duct system, which helps to achieve orderly organization of airflow in a limited space, prevents hot air backflow, and ensures that the condenser 120 continuously obtains low-temperature fresh air.

[0157] In some embodiments, the side plate 142 is arc-shaped, and its contour is adapted to the outdoor unit impeller 130 and condenser 120. Specifically, the side plate 142 of the air pressure plate 140 has an arc-shaped structure, and its curved contour is adapted to the outer edge of the impeller of the outdoor unit impeller 130 and the leeward side of the condenser 120. This arc-shaped design allows the side plate 142 to extend along the airflow trajectory, conforming to the geometry of the fan rotation field and the heat exchanger surface, effectively guiding the cooling air along the optimal path and reducing airflow separation, eddies, and turbulence losses.

[0158] The curvature of the side plate 142 is optimized through fluid simulation to match the pressure distribution and velocity field characteristics of the external fan impeller 130 under operating conditions. A uniform and minimized gap is maintained between the side plate 142 and the blade tip of the external fan impeller 130, forming an effective air seal to prevent high-pressure side airflow from flowing back to the low-pressure side through the gap between the impeller and the casing, thereby improving the fan's work capacity and efficiency. Simultaneously, the curved side plate 142 has a pre-swirl guiding effect on the airflow entering the external fan impeller 130, improving the uniformity of the inlet flow field, reducing inlet resistance, and decreasing the operating noise of the external fan impeller 130.

[0159] The side plate 142 extends circumferentially along the condenser 120, and its arc-shaped profile matches the shape of the end or side of the condenser 120, ensuring a continuous and abrupt transition interface between them. This allows the cooling air to maintain a stable flow rate and uniform distribution as it passes through the condenser 120, fully wetting all fin surfaces and maximizing the utilization of the heat exchange area. Especially in the edge region of the condenser 120, the arc-shaped side plate 142 effectively suppresses the "edge-circumference" phenomenon of airflow, preventing some air from being discharged without fully participating in heat exchange.

[0160] The curved side plate 142 is manufactured from thin metal sheet or high-strength plastic using die stamping or injection molding processes, possessing good structural rigidity and dimensional accuracy. The curved surface of the side plate 142 undergoes a smooth surface treatment to reduce air friction resistance and further improve ventilation efficiency. In other embodiments, the curved section of the side plate 142 is provided with reinforcing ribs or locally thickened structures to enhance its resistance to wind pressure deformation and ensure that it can maintain geometric stability under high wind speed conditions.

[0161] The curved structure also optimizes the space utilization within the duct space 141. Compared to the straight side plate 142, the curved side plate 142 can more tightly enclose the outdoor unit impeller 130 and condenser 120, reducing the volume of ineffective cavities and making the duct space 141 more compact and concentrated, which is beneficial for the miniaturization design of the air conditioning outdoor unit 100. At the same time, the curved transition reduces structural stress concentration and improves the fatigue life of the air pressure plate 140 under long-term vibration environment.

[0162] In some embodiments, the air duct space 141 includes a connected air inlet chamber 141a and an air outlet chamber 141b. The air inlet chamber 141a is connected to the outdoor unit's air inlet 102 and extends along the length of the condenser 120. The air outlet chamber 141b is connected to the outdoor unit's air outlet 103, and the outdoor unit's fan wheel 130 is located in the air outlet chamber 141b. The air duct space 141 is composed of the air inlet chamber 141a and the air outlet chamber 141b, which are interconnected within the air duct space 141, forming an orderly segmented airflow channel. This segmented design achieves graded guidance and directional control of the cooling airflow.

[0163] The air inlet cavity 141a is located on the leeward side of the condenser 120 (the side of the condenser 120 facing away from the outdoor unit's air inlet 102), with one end connected to the outdoor unit's air inlet 102 and the other end connected to the air outlet cavity 141b. The air inlet cavity 141a extends along the length of the condenser 120, covering the main heat exchange area of ​​the condenser 120, and its transverse cross-sectional shape matches the contour of the condenser 120's fin array. After entering from the outdoor unit's air inlet 102, external air first flows into the air inlet cavity 141a, and under the constraint of the air inlet cavity 141a, it is evenly distributed along the length of the condenser 120, forming a stable and uniform inflow field. This helps to avoid the problem of uneven heat exchange caused by concentrated airflow in local areas of the condenser 120, ensuring that all fins can effectively participate in heat exchange.

[0164] The air outlet cavity 141b is also located on the leeward side of the condenser 120. The outdoor unit fan 130 is installed inside the air outlet cavity 141b, positioned in the flow path of the airflow after passing through the condenser 120. Driven by a motor, the outdoor unit fan 130 rotates, pressurizing and accelerating the high-temperature air that has absorbed heat, forcing it to be discharged from the air outlet cavity 141b through the outdoor unit air outlet 103 to the outdoor environment. The air outlet cavity 141b provides stable air intake conditions for the outdoor unit fan 130, reducing inlet turbulence and improving the efficiency and operational stability of the outdoor unit fan 130.

[0165] Please see Figure 1 In some embodiments, the outdoor unit housing 110 is provided with a baffle rib 150, which is disposed at the air inlet. The baffle rib 150 is located within the internal area of ​​the outdoor unit air inlet 102 and serves as a structural limiting component to prevent the condenser 120 from detaching. The baffle rib 150 is distributed along the inner periphery of the air inlet, spanning the air inlet channel. Its position and size are designed to prevent the condenser 120 from shifting along the air inlet direction during installation or operation, thus preventing the condenser 120 from detaching from the housing space from the air inlet side.

[0166] The baffle ribs 150 are integrally formed with the outdoor unit housing 110 through injection molding, stamping, or welding processes, or fixed to the inner structure of the air inlet by screws, clips, etc., ensuring a firm connection and sufficient mechanical strength to withstand the thrust or vibration loads that the condenser 120 may exert. Multiple baffle ribs 150 are arranged in parallel, grid-like, or ring arrays to form a baffle structure covering most of the cross-section of the air inlet. The spacing between the ribs allows air to pass through smoothly, meeting ventilation requirements, while ensuring that the overall outline of the condenser 120 cannot pass through this area.

[0167] The condenser 120 is installed inside the housing space and is usually fixed by brackets, clips or screws. However, during transportation, handling or long-term vibration, there is a risk that the condenser 120 may be axially displaced due to loose connections.

[0168] In some embodiments, the outdoor unit air inlet 102 and the outdoor unit air outlet 103 are arranged sequentially along the length of the casing to form a linearly distributed ventilation structure. This layout concentrates the air intake and exhaust functions on the same side wall of the outdoor unit casing 110 and arranges them in an orderly manner from front to back or from back to front according to the airflow direction, optimizing the utilization efficiency of the external space of the outdoor unit and reducing the requirements for the lateral ventilation clearance of the installation environment.

[0169] The linear arrangement along the length direction results in a U-shaped or zigzag airflow path inside the casing. External air enters through the outdoor unit's inlet 102, passes through the condenser 120 under the drive of the outdoor unit's impeller 130 to complete heat exchange, then turns and flows along the length of the outdoor unit casing 110, finally exiting from the outdoor unit's outlet 103, located on the same side but at an offset position. This airflow organization fully utilizes the lateral space of the outdoor unit casing 110, reducing the longitudinal footprint and facilitating a compact longitudinal design for the air conditioning outdoor unit 100.

[0170] The opening areas of the outdoor unit's air inlet 102 and air outlet 103 are optimized according to the airflow requirements. The outdoor unit's air inlet 102 typically has a large effective flow area to reduce intake resistance and ensure sufficient cooling airflow. The outdoor unit's air outlet 103 is designed to fit the fan's pressure discharge capacity and heat dissipation requirements. In other embodiments, the air outlet is equipped with a guide grille or angled louvers to guide hot air away from the building's exterior walls, further reducing the risk of heat backflow.

[0171] In some embodiments, both the outdoor unit air inlet 102 and the outdoor unit air outlet 103 extend along the height direction of the outdoor unit housing 110. The fact that both the outdoor unit air inlet 102 and the outdoor unit air outlet 103 extend along the height direction of the outdoor unit housing 110 forms a vertically continuous ventilation opening structure. This results in the air inlet and air outlet having a large length dimension in the height direction of the outdoor unit housing 110, which helps to increase the effective ventilation area and improve the airflow per unit time.

[0172] The outdoor unit's air inlet 102 extends along its height, with its longitudinal length matching or slightly exceeding the vertical height of the condenser 120. This ensures that cooling air is evenly distributed across the entire windward surface of the condenser 120 after entering the housing. This extended structure avoids the problems of concentrated airflow and uneven velocity caused by traditional small-hole air inlets, facilitating efficient heat exchange across the entire height range of the condenser 120. External air enters simultaneously from multiple height positions of the outdoor unit's air inlet 102, creating a stratified air intake effect, reducing localized airflow dead zones, and improving fin utilization.

[0173] The outdoor unit's air outlet 103 is also positioned along the height of the outdoor unit casing 110. The vertical extension structure of the air outlet is adapted to the layout of the outdoor unit's impeller 130 and air outlet cavity 141b, ensuring that the hot air heated by the condenser 120 can be simultaneously discharged from different heights under the action of the fan. This arrangement reduces the exhaust dynamic pressure and minimizes the airflow accumulation effect at the outdoor unit's air outlet 103, helping the hot air to quickly diffuse to the outdoor environment and avoiding the formation of a high-temperature stagnation zone near the outdoor unit's air outlet 103.

[0174] In some embodiments, the condenser 120 includes a first condensing plate 121 and a second condensing plate 122 connected to each other. The first condensing plate 121 and the second condensing plate 122 are arranged opposite each other and spaced apart, and both the first condensing plate 121 and the second condensing plate 122 are located between the outdoor unit impeller 130 and the outdoor unit air inlet 102. The first condensing plate 121 and the second condensing plate 122 are connected by refrigerant pipes, manifolds, or elbows to form a continuous high-temperature side heat exchange channel. The first condensing plate 121 and the second condensing plate 122 are arranged parallel or nearly parallel to each other, maintaining a certain distance between them, forming a double-layer plate heat exchange structure. This structure significantly increases the effective heat exchange area of ​​the condenser 120 within a limited installation space, improves the overall heat dissipation capacity, and optimizes airflow organization through the inter-plate airflow channel, thereby improving heat exchange efficiency.

[0175] The first condenser plate 121 and the second condenser plate 122 are arranged opposite each other to form a composite air-facing surface facing the air inlet direction. External cooling air enters through the outdoor unit's air inlet 102, first flowing over the outer surface of the first condenser plate 121 for initial heat exchange, then passing through the gap between the first condenser plate 121 and the second condenser plate 122, and finally flowing over the outer surface of the second condenser plate 122 to complete a secondary heat exchange. This series airflow path allows the air to undergo two thorough heat absorption processes as it passes through the condenser 120, extending the heat exchange time and improving the air temperature rise and refrigerant condensation effect.

[0176] The first condenser plate 121 and the second condenser plate 122 are both located on the airflow path between the outdoor unit impeller 130 and the outdoor unit air inlet 102, in the negative pressure intake zone of the air duct system. During the rotation of the outdoor unit impeller 130, a low-pressure zone is formed at its front end, driving external air to pass through the first condenser plate 121 and the second condenser plate 122 in sequence, and guiding it to the inlet of the outdoor unit impeller 130. This places the condenser 120 in a high-speed incoming flow region, with a high airflow velocity and uniform distribution, which is beneficial for breaking the air boundary layer and enhancing the convective heat transfer coefficient.

[0177] The first condenser plate 121 is located near the outdoor unit's air inlet 102, serving as the primary heat exchange zone to directly receive low-temperature external air for rapid cooling. The second condenser plate 122 is located downstream of the first condenser plate 121, adjacent to the inlet of the outdoor unit's fan impeller 130, utilizing the pre-heated but still cooling airflow for secondary heat exchange. In other embodiments, the fin density, number of tube rows, or windward angle of the first and second condenser plates 121 and 122 are differentiated according to the local wind speed distribution. The front plate uses a lower fin density to reduce airflow resistance, while the rear plate uses a higher density to enhance heat exchange intensity, achieving optimal performance matching.

[0178] After the cooling air enters from the air inlet on the same side, it passes through the first condenser plate 121 and the second condenser plate 122 in sequence under the negative pressure to complete double-sided heat exchange. Then it is accelerated by the outdoor unit fan wheel 130 and discharged from the outdoor unit air outlet 103 on the same side, realizing a high-efficiency heat dissipation cycle in a compact structure.

[0179] In some embodiments, the window air conditioning unit 10 also includes a four-way valve and a throttling device, the four-way valve and the throttling device, the evaporator 220, the condenser 120 and the compressor 240 being connected via a refrigerant pipe 101.

[0180] When the window air conditioning unit 10 performs its cooling function, the refrigerant is compressed in a gaseous state under the drive of the compressor 240. The compression process causes the temperature and pressure of the refrigerant to rise, forming high-temperature and high-pressure superheated vapor. The high-temperature and high-pressure refrigerant then enters the condenser 120, where it releases heat to the external environment through forced convection heat exchange with the outdoor air. The refrigerant undergoes a phase change, gradually condensing from a gaseous state to a liquid state, and completes the subcooling process.

[0181] The high-pressure liquid refrigerant flowing from condenser 120 passes through a throttling device, which uses a capillary tube or electronic expansion valve. This throttling action causes a rapid decrease in refrigerant pressure and temperature, forming a low-temperature, low-pressure gas-liquid two-phase mixture. The low-temperature, low-pressure refrigerant then enters the evaporator 220 located on the indoor side. Inside the evaporator 220, it absorbs heat from the indoor air, causing the refrigerant to boil and evaporate, completely transforming from a liquid to a gaseous state, thus achieving cooling and dehumidification of the indoor air.

[0182] After the refrigerant vapor in the evaporator 220 has absorbed heat and vaporized, the low-temperature, low-pressure refrigerant vapor is drawn back into the compressor 240. The compressor 240 operates continuously, driving the refrigerant to flow in a closed loop system, thereby maintaining a continuous refrigeration cycle. The indoor unit fan 230 drives indoor air to flow through the fins of the evaporator 220 in a forced convection manner, effectively removing heat. The cooled air is then returned to the indoor space, lowering the indoor ambient temperature. The outdoor fan drives outdoor air to flow through the condenser 120, ensuring efficient heat dissipation during the condensation process.

[0183] When the window air conditioning unit 10 is in heating mode, the refrigerant flow direction is switched via a four-way reversing valve. The high-temperature, high-pressure refrigerant discharged from the compressor 240 no longer flows to the outdoor condenser 120, but is instead guided to the indoor evaporator 220 via the four-way valve. At this time, the indoor evaporator 220 (indoor heat exchanger) operates as a condenser. The high-temperature, high-pressure refrigerant releases heat to the indoor air in the indoor heat exchanger, and the refrigerant condenses into a high-pressure liquid, thus providing heating to the room.

[0184] After releasing heat, the high-pressure liquid refrigerant leaves the indoor heat exchanger and undergoes pressure and temperature reduction through a throttling device, transforming into a low-temperature, low-pressure gas-liquid two-phase state. It then enters the outdoor heat exchanger (condenser 120). Inside the outdoor heat exchanger, the low-temperature, low-pressure refrigerant absorbs heat from the outdoor air, evaporates, and transforms into a low-temperature, low-pressure gas. The evaporated refrigerant is guided by a four-way reversing valve back to the suction port of compressor 240, where it is drawn in again and compressed, completing the heating cycle.

[0185] In heating mode, the indoor unit's fan 230 drives airflow through the indoor heat exchanger, heating the air before it is delivered into the room, raising the indoor ambient temperature. The outdoor unit's fan 130 drives airflow through the outdoor heat exchanger, maintaining a continuous heat absorption process from the outside air. Through the switching of the four-way reversing valve, the window air conditioning unit 10 can change the refrigerant circulation path, achieving switching between cooling and heating modes to meet the environmental regulation needs of different seasons.

[0186] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they 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, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0187] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A window frame, characterized in that, The window frame, used in window air conditioning equipment, includes: A first fixing bracket is used to connect a window air conditioning unit; A second fixing bracket, connected to the first fixing bracket, and used for interlocking with the window frame; and A locking element is connected to the second fixing bracket and locks the second fixing bracket to the window frame.

2. The window frame according to claim 1, characterized in that, The first fixing frame includes a fixed plate and a reinforcing folded edge connected to each other. The fixed plate is used to connect the window air conditioning unit, and the reinforcing folded edge is bent relative to the fixed plate.

3. The window frame according to claim 2, characterized in that, The fixing plate is provided with a plurality of first screw mounting holes, which are used to cooperate with the window air conditioning equipment.

4. The window frame according to claim 3, characterized in that, Along the width direction of the fixed plate, the second fixing frame has the first screw mounting holes on both sides.

5. The window frame according to claim 1, characterized in that, The second fixing frame includes a first connecting part, a second connecting part, and a third connecting part connected in sequence. The second connecting part is connected to the first fixing frame. The first connecting part and the third connecting part are opposite to each other and spaced apart. The first connecting part and the third connecting part cooperate to form a plug-in end. The plug-in end is plugged into the plug-in slot of the window frame.

6. The window frame according to claim 5, characterized in that, The locking element passes through the first connecting part, the window frame, and the second connecting part.

7. The window frame according to claim 5, characterized in that, The second connecting part is provided with a plurality of second screw mounting holes, and the first fixing bracket is provided with a plurality of third screw mounting holes. Each third screw mounting hole corresponds to a second screw mounting hole and cooperates with the window air conditioning unit.

8. The window frame according to claim 5, characterized in that, One side of the second connecting part is fitted and connected to one side of the first fixing frame.

9. The window frame according to claim 1, characterized in that, Both the first fixing bracket and the second fixing bracket are sheet metal parts.

10. A window-type air conditioning unit, characterized in that, include: Window frame according to any one of claims 1 to 9; An air conditioner outdoor unit, which is mounted on the window frame via the window frame; as well as An indoor unit for an air conditioner, which is connected to the outdoor unit for an air conditioner via a refrigerant pipe.

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