An air conditioner indoor unit

Abstract

This utility model relates to the field of air conditioning technology and discloses an indoor unit for an air conditioner. The indoor unit includes: a housing with an air inlet and an air outlet at both ends along its width; a cross-flow fan disposed within the housing, between the air inlet and the air outlet, through which air is drawn in from the air inlet and output to the air outlet; a heat exchange assembly disposed within the housing, close to the air inlet, through which air exchanges heat; and a condensate tray disposed within the housing, close to the air outlet, below the heat exchange assembly. In this utility model, by providing air inlets and outlets at both ends along the width of the housing, airflow is facilitated, effectively improving airflow efficiency. Air can exchange heat with the heat exchange assembly, enhancing heat exchange efficiency. The condensate tray below the heat exchange assembly collects condensate dripping from it. The condensate tray can be connected to a guide structure to divert the condensate away from the indoor unit, effectively addressing dripping or leaking issues.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and mainly to an indoor unit of an air conditioner. Background Technology

[0002] In modern life, air conditioners have become crucial devices for regulating indoor temperature and improving comfort. However, problems such as dripping, leaking, and water droplets being blown out during operation cause numerous inconveniences for users. When an air conditioner is cooling, the heat exchange components are at a low temperature. When the warm indoor air encounters the cold air, water vapor condenses into water droplets on the surface of the heat exchange components. These droplets need to be drained through the drainage system. However, when the drainage pipes are blocked by dust and dirt, or due to improper installation such as an unreasonable slope or loose connections, the condensate cannot drain smoothly, leading to leaks that may soak ceilings and walls, damaging interior decorations and furniture. In some air conditioners, if the condensate tray is poorly designed, such as lacking an effective obstruction structure near the air vent, the condensate on the bottom of the tray, generated by the low temperature, can easily be blown into the room by the airflow, creating water droplets and affecting the user experience. Therefore, current technology still needs improvement and development. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an air conditioner indoor unit that solves the problem of water dripping from existing air conditioner indoor units.

[0004] The technical solution of this utility model is as follows: This utility model provides an indoor unit for an air conditioner, comprising: The housing has an air inlet and an air outlet at both ends in the width direction; A cross-flow fan is disposed inside the housing, located between the air inlet and the air outlet. Air is drawn in from the air inlet and output to the air outlet through the cross-flow fan. A heat exchange component is disposed inside the housing, close to the air inlet, and air exchanges heat through the heat exchange component. A water collection tray is disposed inside the housing, close to the air outlet, and located below the heat exchange assembly.

[0005] In this invention, the housing facilitates easy installation of the indoor air conditioner unit in the desired location. Air inlets and outlets at both ends of the housing width promote airflow. A cross-flow fan positioned between the inlets and outlets effectively improves airflow efficiency, allowing air to be smoothly drawn in through the inlets and exhausted through the outlets. The heat exchange components are positioned close to the inlets, ensuring immediate heat exchange with the incoming air, thus enhancing heat exchange efficiency. After heat exchange, the cross-flow fan outputs cooled air to the outlet. During cooling, condensation easily forms on the surface of the heat exchange components. A condensate tray below the heat exchange components collects dripping condensate. This tray connects to a flow guide structure, effectively diverting condensate away from the indoor unit and preventing dripping or leakage.

[0006] As a further improvement to the above technical solution, the two ends of the water collection tray are provided with protrusions extending towards its bottom surface, and the water collection tray, the protrusions and the shell form an air outlet channel communicating with the air outlet.

[0007] In this invention, since the condensate tray continuously receives and drains condensate during the continuous cooling process of the indoor unit of the air conditioner, the temperature of the condensate tray is relatively low. By setting a protrusion on the condensate tray and forming an air outlet channel with the bottom surface of the condensate tray and the shell, the air can flow through the air outlet channel to further ensure the cooling effect, which is beneficial to ensuring the cooling effect and reducing energy consumption.

[0008] As a further improvement to the above technical solution, the bottom surface of the water collection tray faces the air outlet and is inclined relative to the vertical direction; The bottom of the water collection tray is provided with a first guide channel, which is connected to the protrusion and the bottom surface of the water collection tray.

[0009] As a further improvement to the above technical solution, the bottom surface of the water collection tray is provided with micro protrusions.

[0010] As a further improvement to the above technical solution, a second flow guide groove is provided on the housing, the second flow guide groove is connected to the housing and located at the air outlet.

[0011] As a further improvement to the above technical solution, the heat exchange assembly includes a first evaporator, a second evaporator, and a third evaporator. The first evaporator, the second evaporator, and the third evaporator are connected sequentially from top to bottom to form a semi-enclosed structure, and the opening of the semi-enclosed structure faces the cross-flow fan. The first evaporator and the second evaporator are located above the cross-flow fan, and the angle between the first evaporator and the second evaporator is an acute angle, facing the cross-flow fan; The third evaporator is located below the second evaporator and adjacent to the cross-flow fan; The water collection tray is located below the third evaporator.

[0012] As a further improvement to the above technical solution, a third guide groove is provided on the shell, located below the first section of the evaporator.

[0013] As a further improvement to the above technical solution, the indoor unit of the air conditioner also includes: The heating element is disposed inside the housing, located between the first evaporator, the second evaporator, and the cross-flow fan.

[0014] Beneficial Effects: In this utility model, the housing design facilitates easy installation of the indoor air conditioner unit in the desired location. Air inlets and outlets at both ends of the housing width promote airflow. The placement of a cross-flow fan between the inlet and outlet effectively improves airflow efficiency, allowing air to be smoothly drawn in through the inlet and exhausted through the outlet. The heat exchange component's proximity to the inlet ensures immediate heat exchange with the incoming air, enhancing heat exchange efficiency. After heat exchange, the cross-flow fan outputs cooled air to the outlet. During cooling operation, condensation easily forms on the surface of the heat exchange component. A condensate tray below the heat exchange component catches dripping condensate. This tray, connected to a flow guide structure, effectively directs condensate away from the indoor unit, addressing dripping or leaking issues. Attached Figure Description

[0015] Figure 1 This is an external view of the indoor unit of the air conditioner according to this utility model.

[0016] Figure 2 This is a cross-sectional structural diagram of the indoor unit of the air conditioner according to this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the indoor unit of the air conditioner according to this utility model.

[0018] Labeling Explanation: 100, Shell; 110, Air Inlet; 120, Air Outlet; 130, Second Guide Channel; 140, Third Guide Channel; 200, Cross-flow Fan; 300, Heat Exchange Component; 310, First Evaporator; 320, Second Evaporator; 330, Third Evaporator; 400, Water Collection Pan; 410, Protrusion; 420, First Guide Channel; 500, Air Outlet Channel; 600, Heating Element. Detailed Implementation

[0019] This utility model provides an indoor unit for an air conditioner. To make the purpose, technical solution, and effects of this utility model clearer and more explicit, the following provides a more detailed description of this utility model. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit this utility model.

[0020] Reference Figures 1-3 This utility model provides an indoor unit for an air conditioner, comprising: The housing 100 has an air inlet 110 and an air outlet 120 at both ends in the width direction; A cross-flow fan 200 is disposed inside the housing 100, located between the air inlet 110 and the air outlet 120. Air is drawn in from the air inlet 110 and output to the air outlet 120 through the cross-flow fan 200. A heat exchange component 300 is disposed inside the housing 100, close to the air inlet 110, and air exchanges heat through the heat exchange component 300; A water collection tray 400 is disposed inside the housing 100, close to the air outlet 120, and located below the heat exchange assembly 300.

[0021] In this invention, the housing 100 facilitates easy installation of the indoor air conditioner unit in the desired location. Air inlets 110 and outlets 120 are located at both ends of the housing 100's width to promote airflow. The cross-flow fan 200, positioned between the air inlets 110 and outlets 120, effectively improves airflow efficiency, allowing air to be smoothly drawn in through the air inlets 110 and exhausted through the outlets 120. The heat exchange assembly 300, positioned close to the air inlets 110, ensures immediate heat exchange with the incoming air, enhancing heat exchange efficiency. After heat exchange by the heat exchange assembly 300, the cross-flow fan 200 outputs cooled air to the outlets 120. When the indoor unit of the air conditioner is cooling, the heat exchange treatment of the heat exchange component 300 makes it easy for condensation to form on its surface. By setting a water collection tray 400 below the heat exchange component 300, the condensation dripping from the heat exchange component 300 can be collected. The water collection tray 400 can be connected to the flow guiding structure to guide the condensation away from the indoor unit of the air conditioner in a timely manner, effectively dealing with the problem of dripping or leaking water.

[0022] In a specific embodiment of this utility model, the water collection tray 400 has protrusions 410 extending to its bottom surface at both ends, and the bottom surface of the water collection tray 400, the protrusions 410 and the housing 100 form an air outlet channel 500 communicating with the air outlet 120.

[0023] In this utility model, since the indoor unit of the air conditioner continuously receives and drains condensate during the cooling process, the temperature of the water collection pan 400 is relatively low. By setting a protrusion 410 on the water collection pan 400 and forming an air outlet channel 500 with the bottom surface of the water collection pan 400 and the housing 100, the air can flow through the air outlet channel 500 to further ensure the cooling effect, which is beneficial to ensuring the cooling effect and reducing energy consumption.

[0024] In one specific embodiment of this utility model, the bottom surface of the water collection tray 400 faces the air outlet 120 and is inclined relative to the vertical direction. The bottom of the water collection tray 400 is provided with a first guide groove 420, which is in contact with the protrusion 410 and the bottom surface of the water collection tray 400.

[0025] Specifically, because the indoor unit of the air conditioner continuously cools, the temperature of the condensate pan 400 remains relatively low. Furthermore, the air always contains a certain amount of water vapor. Therefore, even after condensation occurs in the heat exchange component 300, the air flowing through the air outlet 500 still retains water vapor. Consequently, after continuous operation of the indoor unit, a certain amount of condensate will gradually accumulate on the bottom surface of the condensate pan 400 and the protrusion 410. If not addressed, this can easily form water droplets and be blown directly out. Moreover, these water droplets are at a low temperature; if they are blown out from the air outlet 120 and come into contact with the user, they will cause significant irritation and negatively impact the user experience.

[0026] To address the aforementioned issues, this invention addresses the problem by tilting the bottom surface of the water collection tray 400. This tilted bottom surface forms the air outlet channel 500, which guides the airflow from the indoor unit while allowing condensate to easily converge at its lowest point via the tilted guide. A first guide channel 420 at the bottom of the water collection tray effectively collects condensate from the bottom surface and protrusion 410. Furthermore, the cold air from the indoor unit can also blow condensate through the tilted bottom surface of the water collection tray 400 onto the first guide channel 420. This first guide channel 420 can also connect to a flow guiding structure, effectively diverting condensate away from the indoor unit and further preventing dripping or leakage.

[0027] In one specific embodiment of this utility model, a second guide groove 130 is provided on the housing 100, the second guide groove 130 is connected to the housing 100 and is located at the air outlet 120.

[0028] In this utility model, similar to the first guide channel 420, the second guide channel 130 is provided to prevent condensation droplets from forming on the housing 100 at the air outlet channel 500 and being blown out.

[0029] In one specific embodiment of this utility model, the bottom surface of the water collection tray 400 is provided with micro protrusions.

[0030] In this invention, by setting micro protrusions on the bottom surface of the water collection tray 400, and in conjunction with the airflow flowing through the air outlet, the surface tension of the water film formed by condensation on the bottom surface of the water collection tray 400 is easily affected. This makes it difficult for large droplets to form on the bottom surface of the water collection tray 400. The liquid film dispersed by the micro protrusions can easily flow through the gaps between the micro protrusions to the first guide groove 420 at the bottom of the water collection tray 400, and then be guided away from the indoor unit of the air conditioner, which helps to ensure the user experience.

[0031] In one specific embodiment of this utility model, the heat exchange assembly 300 includes a first evaporator 310, a second evaporator 320 and a third evaporator 330. The first evaporator 310, the second evaporator 320 and the third evaporator 330 are connected from top to bottom to form a semi-enclosed structure. The opening of the semi-enclosed structure faces the cross-flow fan 200. The first evaporator 310 and the second evaporator 320 are located above the cross-flow fan 200, and the included angle between the first evaporator 310 and the second evaporator 320 is an acute angle, facing the cross-flow fan 200; The third evaporator 330 is located below the second evaporator 320 and is adjacent to the cross-flow fan 200; The water collection tray 400 is located below the third evaporator 330.

[0032] In this invention, by setting the first evaporator 310 and the second evaporator 320 at an angle, with the angle pointing towards the cross-flow fan 200, the first and second evaporators 310 and 320 are inclined relative to the vertical direction. This prevents condensate droplets formed on the first and second evaporators 310 from dripping directly onto the cross-flow fan 200. Furthermore, the angle enhances the downward flow of the droplets, ensuring good airflow and preventing the blowing out of small droplets. Simultaneously, by placing a third evaporator 330 below the second evaporator 320, and with the water collection tray 400 positioned below the third evaporator 330, the angle allows condensate droplets formed on the second evaporator 320 to flow to the third evaporator 330, where they then drip under their own weight onto the water collection tray 400 for collection.

[0033] In one specific embodiment of this utility model, a third guide groove 140 is provided on the housing 100, located below the first evaporator 310.

[0034] In this invention, condensate droplets on the relatively inclined second evaporator 320 can be guided to the water collection pan 400 through the third evaporator 330, while condensate droplets will also form on the relatively inclined first evaporator 310. By providing a third guide channel 140 on the housing 100, the third guide channel 140 can receive the condensate droplets formed on the first evaporator 310, preventing them from dripping directly onto the cross-flow fan 200 or flowing out of the indoor unit of the air conditioner and causing dripping.

[0035] In one specific embodiment of this utility model, the indoor unit of the air conditioner further includes: The heating element 600 is disposed inside the housing 100, located between the first evaporator 310, the second evaporator 320 and the cross-flow fan 200.

[0036] In this invention, when the indoor unit of the air conditioner is cooling, condensate droplets may form in the first evaporator 310, the second evaporator 320 and the third evaporator 330. Moreover, the cross-flow fan 200 generally runs continuously, and the condensate droplets are concentrated under the action of airflow, so they can be better collected and guided away.

[0037] Specifically, the first evaporator 310 and the second evaporator 320 form an angle near each other. The condensate collection structure does not cover the angle between the first evaporator 310 and the second evaporator 320. After the indoor unit of the air conditioner stops cooling, some condensate on the first evaporator 310, the second evaporator 320, and the third evaporator 330 fails to collect and flow away, instead forming dripping condensate droplets in place, which can cause dripping problems. This invention solves this problem by installing a heating tube 600 between the first evaporator 310, the second evaporator 320, and the cross-flow fan 200. After cooling stops, the heating tube 600 locally heats the angle between the first evaporator 310 and the second evaporator 320, promptly removing the condensate droplets remaining on the heat exchange components 300 and preventing dripping and leakage problems.

[0038] The working principle of the indoor unit of this utility model is as follows: After the indoor unit is connected to the power supply and starts running, the cross-flow fan 200 starts running, introducing air from the air inlet 110. When the air flows through the heat exchange assembly 300, the temperature is reduced through heat exchange to form cold air. During this process, the water vapor in the flowing air will condense and condense on the first evaporator 310, the second evaporator 320 and the third evaporator 330 in the heat exchange assembly 300 due to the temperature drop. The evaporator 320 is angled and faces the cross-flow fan 200. Condensate droplets formed on the first evaporator 310 can flow downwards due to the relative tilt, dripping onto the third guide channel 140 for collection. Condensate droplets formed on the second evaporator 320 can also flow downwards due to the relative tilt, and are received by the third evaporator 330 located below the second evaporator 320, continuing to flow downwards with the condensate droplets on the third evaporator 330, dripping onto the water collection pan 400 for collection. The resulting cold airflow after heat exchange is output from the air outlet 120 after passing through the air outlet 500. Condensate formed on the bottom surface and protrusions 410 of the water collection pan 400 can be collected by the first guide channel 420. Simultaneously, the water collection pan 400 has micro-protrusions, preventing condensate formed on the bottom surface from easily forming large, dripping droplets. Instead, the condensate flows through the channels between the micro-protrusions towards the first guide channel 420 and is guided away. The shape of the housing 100 at the air outlet duct 500 corresponds to the air outlet direction. The condensate droplets formed on the housing 100 are also collected and guided away by the second guide groove 130. Through the design of this utility model, the problem of dripping and leaking water in the indoor unit of the air conditioner can be effectively solved.

[0039] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of this utility model.

Claims

1. An indoor unit of an air conditioner, characterized by comprising: include: The housing (100) has an air inlet (110) and an air outlet (120) at both ends in the width direction. A cross-flow fan (200) is disposed inside the housing (100) and located between the air inlet (110) and the air outlet (120). Air is drawn in from the air inlet (110) and output to the air outlet (120) through the cross-flow fan (200). A heat exchange assembly (300) is disposed inside the housing (100) and close to the air inlet (110), through which air exchanges heat; A water collection tray (400) is disposed inside the housing (100), close to the air outlet (120), and located below the heat exchange assembly (300).

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The water collection tray (400) has protrusions (410) extending to its bottom surface at both ends. The water collection tray (400), the protrusions (410) and the housing (100) form an air outlet channel (500) that communicates with the air outlet (120). 3.The indoor unit of claim 2, wherein, The bottom surface of the water collection tray (400) faces the air outlet (120) and is inclined relative to the vertical direction; The bottom of the water collection tray (400) is provided with a first guide groove (420), which is in contact with the protrusion (410) and the bottom surface of the water collection tray (400). 4.The indoor unit of claim 3, wherein, The bottom surface of the water collection tray (400) is provided with micro protrusions. 5.The indoor unit of claim 2, wherein, The housing (100) is provided with a second guide groove (130), which is connected to the housing (100) and located at the air outlet (120). 6.The indoor unit of the air conditioner according to claim 1, characterized by, The heat exchange assembly (300) includes a first evaporator (310), a second evaporator (320) and a third evaporator (330). The first evaporator (310), the second evaporator (320) and the third evaporator (330) are connected from top to bottom to form a semi-enclosed structure. The opening of the semi-enclosed structure faces the cross-flow fan (200). The first evaporator (310) and the second evaporator (320) are located above the cross-flow fan (200), and the included angle between the first evaporator (310) and the second evaporator (320) is an acute angle, facing the cross-flow fan (200). The third evaporator (330) is located below the second evaporator (320) and adjacent to the cross-flow fan (200); The water collection tray (400) is located below the third evaporator (330). 7.The air conditioner indoor unit according to claim 6, characterized by, The housing (100) is provided with a third guide groove (140), which is located below the first evaporator (310). 8.The air conditioner indoor unit according to claim 7, characterized by, The indoor unit of the air conditioner also includes: A heating element (600) is disposed within the housing (100) and located between the first evaporator (310), the second evaporator (320), and the cross-flow fan (200).

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