Novel ultra-thin air conditioner indoor unit

Abstract

This invention provides a novel ultra-thin air conditioner indoor unit, relating to the field of air conditioning equipment technology. It includes: a casing, an evaporator vertically disposed inside the casing, cross-flow fans symmetrically arranged along the axial direction of the evaporator, an antibacterial forced drainage system integrated into the bottom of the casing, and an electronic control board. An air outlet duct is opened on one working surface of the casing, located on the other side of the evaporator, with a preset working distance between them. Upper and lower air inlets are opened at the upper and lower ends of the casing, opposite to the cross-flow fans. The antibacterial forced drainage system is used to collect condensate generated during evaporator operation. The cross-flow fans are connected to the casing via a support frame. The electronic control board is used to control the working status of each component. This invention, through an integrated core structure of dual cross-flow fans, a vertical evaporator, and independent upper and lower air ducts, forms a complete and interconnected system for efficient heat exchange and uniform air delivery.

Description

Technical Field

[0001] This invention relates to the field of air conditioning equipment technology, and in particular to a novel ultra-thin air conditioning indoor unit. Background Technology

[0002] In the interior design of modern homes and commercial spaces, air conditioners are a key device for regulating indoor temperature, and their performance, energy consumption, appearance, and integration with the indoor environment are all of great concern.

[0003] Traditional wall-mounted air conditioner indoor units are generally over 150mm thick and over 300mm high. Their bulky appearance protruding from the wall not only detracts from the overall aesthetics of the decor but also occupies a significant amount of valuable indoor space, especially noticeable in small and medium-sized apartments. While central air conditioning indoor units are concealed and aesthetically pleasing, their thickness is typically 180-220mm, requiring a ceiling height of at least 250mm. This significantly reduces the room's ceiling height and also results in longer installation periods, higher initial costs, and more complex maintenance. Multi-split systems require piping to be laid out during the early stages of renovation. The indoor unit is suspended and completely hidden by the ceiling. However, if a major malfunction occurs in the indoor unit, pipe joints, or drainage system, part or even the entire ceiling must be removed before repairs can be carried out. After repairs, secondary renovation work such as ceiling joist restoration, plasterboard sealing, and paint leveling and repair is required. This not only significantly increases maintenance costs and prolongs the maintenance cycle but also generates dust and noise pollution, causing continuous interference to users' normal living and working conditions. Furthermore, most existing multi-split air conditioners use series drainage, which is prone to blockage, backflow, and odors, making it difficult to meet the needs of existing building renovations, loft apartments, and residences with low ceilings.

[0004] To address the aforementioned issues, the industry has successively launched numerous ultra-thin air conditioner indoor unit products. However, most existing technologies still utilize the traditional single-flow fan combined with a horizontal evaporator design. To reduce the thickness of the compressor body, it is necessary to achieve ultra-thinness by reducing the evaporator heat exchange area, decreasing the fan impeller diameter, and lowering the fan installation angle. However, this approach presents the following problems:

[0005] First, the heat exchange efficiency is greatly reduced, and the heat exchange area is reduced by more than 30% compared with traditional models of the same horsepower, which cannot meet the user's temperature regulation needs.

[0006] Secondly, the airflow is uneven. The single-fan design causes the airflow to concentrate in the middle of the unit, resulting in uneven indoor temperature distribution and a significant reduction in comfort.

[0007] Third, energy consumption increases significantly. The decrease in heat exchange efficiency and the increase in fan speed together lead to an increase in overall energy consumption of 10%-20%.

[0008] In addition, the existing ultra-thin air conditioner indoor unit has an unreasonable air duct design, adopting a single air intake and exhaust structure. The airflow circulation path is long and the air resistance is high. Furthermore, the hot and cold airflows are prone to interfere with each other inside the air duct, which further reduces the heat exchange efficiency and air delivery effect. Summary of the Invention

[0009] The purpose of this invention is to provide a novel ultra-thin air conditioner indoor unit to solve the technical problems existing in the prior art.

[0010] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows:

[0011] A novel ultra-thin air conditioner indoor unit includes: a casing, an evaporator vertically disposed inside the casing, a cross-flow fan symmetrically arranged along the axial direction of the evaporator, an antibacterial forced drainage system integrated into the bottom of the casing, and an electronic control board; an air outlet duct is opened on one working surface of the casing, the air outlet duct is located on the other side of the evaporator, and a preset working distance is left between the air outlet duct and the evaporator; an upper air inlet duct and a lower air inlet duct are opened at the upper and lower ends of the casing opposite to the cross-flow fan; the antibacterial forced drainage system is used to collect condensate generated during the operation of the evaporator; the cross-flow fan is connected to the casing through a support frame; the electronic control board is used to control the working status of each component.

[0012] Furthermore, the upper and lower ends of the housing are provided with limiting grooves, which are located on one side of the upper and lower air inlet ducts and can be slidably connected with limiting blocks. The limiting blocks are provided at both ends of the decorative cover, and the decorative cover is adapted to the working size of the housing.

[0013] Furthermore, a rectangular through hole is symmetrically opened on the working surface of the housing near the air outlet duct. The rectangular through hole has a first magnetic suction member inside, which is inserted into the quick-release filter screen. The quick-release filter screen has a second magnetic suction member on one side, and the second magnetic suction member is magnetically connected to the first magnetic suction member.

[0014] Furthermore, the housing is symmetrically provided with guide plates, which are Z-shaped and located between the evaporator and the cross-flow fan. The guide plates are used to adjust the air supply direction.

[0015] Furthermore, the antibacterial forced drainage system includes: a guide channel located at the bottom of the evaporator, a water collection tray located on the decorative cover, and an external vacuum pump located on the outdoor unit of the air conditioner; the guide channel is connected to the water collection tray via a connecting pipe; the water collection tray is a sunken type and is equipped with a water level sensor inside, which is connected to an antibacterial hose via a one-way valve, and the antibacterial hose is connected to the external vacuum pump.

[0016] Furthermore, the evaporator includes: a plurality of copper tubes and a fixing plate for fixing the copper tubes; the copper tubes are provided with a plurality of corrugated fins; the lateral length of the copper tubes is adapted to the length of the housing.

[0017] Furthermore, one side of the copper tube is connected to an electronic expansion valve, and the other end of the electronic expansion valve is connected to an external interface.

[0018] Furthermore, mounting holes are provided at the four corners of the back of the housing, and connectors are provided in the mounting holes. The connectors are parallel to the cross-section of the housing.

[0019] Furthermore, a display screen is provided on one side of the housing, and the display screen is electrically connected to the electronic control board.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (I) This invention utilizes an integrated core structure of dual cross-flow fans, a vertical evaporator, and independent upper and lower air ducts. These three components form a complete and interconnected system for efficient heat exchange and uniform air delivery, fundamentally solving the technical pain points of traditional ultra-thin models, such as heat exchange attenuation, uneven air delivery, high noise, and high energy consumption. The evaporator adopts a vertical layout, perfectly adapting to the compact layout of the ultra-thin body. At the same time, by optimizing the copper tube arrangement and densifying the fins, the heat exchange area is significantly increased compared to conventional models of the same horsepower, improving heat exchange efficiency and achieving high energy efficiency. The symmetrically arranged dual cross-flow fans provide uniform and stable power to the two independent upper and lower air ducts, solving the problem of uneven air delivery by a single fan. Meanwhile, the use of a DC brushless motor and a dynamically balanced impeller achieves low-noise and high-efficiency operation. The independent upper and lower air ducts form a bidirectional air intake and full-area air delivery airflow circulation mode, avoiding mutual interference between the upper and lower airflows, shortening the airflow transmission path, reducing wind resistance and heat exchange loss, and improving air delivery efficiency and uniformity.

[0022] (ii) The present invention increases the heat exchange area of ​​the vertical evaporator, which greatly reduces the operating load of the equipment. Combined with the optimization of the parameters of the dual cross-flow fan and the adoption of the DC brushless motor, the energy consumption of the whole machine is reduced, which can save users a lot of electricity costs.

[0023] (III) This invention is compatible with the piping systems of wall-mounted air conditioners and central air conditioners, and can be installed without large-scale modifications to existing piping systems, whether for new house renovation or old house renovation. For wall-mounted installation scenarios, when paired with a decorative cover of customizable length, the appearance is completely consistent with the indoor unit of the central air conditioner, achieving a unified appearance of the air conditioners throughout the house and solving the problem of inconsistent appearance between traditional wall-mounted units and central air conditioners. It is particularly suitable for modern minimalist residential and commercial spaces.

[0024] (iv) This invention successfully controls the thickness of the indoor unit of the air conditioner to 80-120mm and the height to 200-300mm. Compared with the traditional wall-mounted units, the space occupancy rate is reduced, and it can be perfectly integrated into various modern decoration styles, achieving seamless integration of the air conditioner and the indoor environment. Attached Figure Description

[0025] Figure 1 This is a perspective view of a novel ultra-thin air conditioner indoor unit disclosed in this invention;

[0026] Figure 2 This is a front view of a novel ultra-thin air conditioner indoor unit disclosed in this invention;

[0027] Figure 3 This is an overall view of a novel ultra-thin air conditioner indoor unit disclosed in this invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of a novel ultra-thin air conditioner indoor unit disclosed in this invention;

[0029] Figure 5 This is a side view of the internal structure of a novel ultra-thin air conditioner indoor unit disclosed in this invention;

[0030] Figure 6 This is a perspective view of a novel ultra-thin air conditioner indoor unit decorative cover disclosed in this invention;

[0031] Figure 7 This is an enlarged schematic diagram of part A of a novel ultra-thin air conditioner indoor unit disclosed in this invention;

[0032] Figure 8 This is an enlarged schematic diagram of part B of a novel ultra-thin air conditioner indoor unit disclosed in this invention;

[0033] Figure 9 This is a partial schematic diagram of the evaporator of a novel ultra-thin air conditioner indoor unit disclosed in this invention;

[0034] Figure 10 This is a schematic diagram showing the connection between the quick-release filter and the housing of a novel ultra-thin air conditioner indoor unit disclosed in this invention.

[0035] In the diagram: 1. Housing; 101. Limiting groove; 102. First magnetic suction component; 2. Air outlet duct; 3. Upper air inlet duct; 4. Lower air inlet duct; 5. Evaporator; 501. Fixing plate; 502. Copper pipe; 503. Corrugated fins; 504. External interface; 6. Cross-flow fan; 7. Support frame; 8. Guide groove; 9. Electrical control board; 10. One-way valve; 11. Water collection tray; 1101. Water level sensor; 1102. Antibacterial hose; 12. Connecting pipe; 13. Mounting hole; 14. Display screen; 15. Connector; 16. Decorative cover; 17. Limiting block; 18. Quick-release filter screen; 19. Electronic expansion valve; 20. Guide plate; 21. Second magnetic suction component. Detailed Implementation

[0036] To make the content of this invention easier to understand, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0037] like Figure 1-3As shown, this embodiment provides a novel ultra-thin air conditioner indoor unit, including: a casing 1, an evaporator 5 vertically disposed inside the casing 1, a cross-flow fan 6 symmetrically arranged along the axial direction of the evaporator 5, an antibacterial forced drainage system integrated into the bottom of the casing 1, and an electronic control board 9; the casing 1 is integrally injection molded from high-strength ABS material, with a matte, scratch-resistant, and wear-resistant surface treatment, and a Rockwell hardness ≥80HRC, which can effectively resist scratches and collisions during daily use and is not prone to discoloration or deformation over long-term use; the overall dimensions are 80-120mm thick, 200-300mm high, and the length varies depending on the power of the indoor unit; in actual use, depending on the apartment layout, users can customize the decorative cover 16 to match the length of the indoor unit, thereby achieving a seamless look. The integrated design reduces the thickness by more than 33% compared to traditional 1.5 HP wall-mounted units, significantly lowering space occupancy. It can be perfectly integrated into walls with various interior design styles, such as modern minimalism, light luxury, and Nordic, achieving seamless integration of the air conditioner with the indoor environment. This model is suitable for both wall-mounted independent installation and multi-split system installation. For multi-split system installation, an innovative segmented construction scheme is adopted: in the early stages of decoration, only the mounting brackets need to be laid in the designated locations, and the refrigerant copper pipes connecting the outdoor unit and the dedicated antibacterial drainage hoses for each indoor unit need to be laid. There is no need to pre-install the entire indoor unit. After the interior decoration is completed, the main body of the indoor unit is assembled and debugged, completely avoiding the problem of dust pollution caused by pre-installation of the entire indoor unit of traditional multi-split systems.Simultaneously, thanks to the modular quick-disassembly structure design of the entire unit, when a major malfunction occurs in the indoor unit, there is no need to remove the ceiling; only the front decorative cover needs to be removed to complete the inspection and replacement of core components, completely avoiding the cost and daily use interference caused by secondary renovation and repair. An air outlet duct 2 is opened on one side of the casing 1, located on the other side of the evaporator 5, with a preset working distance between them. This ensures that the cross-flow fan efficiently draws in the air after heat exchange in the evaporator, while preventing the airflow from forming eddies on the evaporator surface, thus avoiding heat exchange loss. An upper air inlet duct 3 and a lower air inlet duct 4 are opened at the upper and lower ends of the casing 1, opposite to the cross-flow fan 6. All air inlets adopt a concealed grille design, ensuring sufficient air intake area without compromising the minimalist aesthetic of the entire unit. The upper air inlet duct 3 is sealed to the air intake side of the upper cross-flow fan 6; the lower air inlet duct 4 is sealed to the air intake side of the lower cross-flow fan 6, forming two completely independent upper and lower air intake paths, fundamentally eliminating the problem of mutual interference between upper and lower airflows inside the duct. The antibacterial forced drainage system is used to collect the condensate generated during the operation of the evaporator 5, solving the backflow and bacterial growth risks of traditional natural drainage. Unlike the series drainage system commonly used in existing multi-split air conditioners, this invention equips each indoor unit with an independent forced drainage return system. The drainage paths of each unit are completely independent and do not interfere with each other, eliminating the risk of cascading failures caused by series drainage from the root. Combined with the active drainage design of the one-way valve 10 and the external vacuum pump, the industry pain points of condensate backflow, water accumulation leading to bacterial growth and odor are completely solved, significantly improving system stability and hygiene. Specifically, the two sets of cross-flow fans 6 are symmetrically arranged along the transverse axial direction of the evaporator 5 and connected to the casing 1 via support frames 7. Nitrile rubber shock-absorbing pads are installed at the connection between the cross-flow fans 6 and the support frames 7, effectively preventing vibrations from the fans from being transmitted to the casing. The cross-flow fans 6 use DC brushless motors and dynamically balanced impellers. The noise level of the entire unit is controlled within the library-level quiet range of 28-35 dB(A); the speed adjustment range of the cross-flow fan 6 is 800-1500 r / min, which can achieve stepless speed regulation according to changes in indoor load, and accurately control the air volume and temperature; the electronic control board 9 is used to control the working status of each component, and coordinate the working status of each component to realize the intelligent operation of the whole unit; a display screen 14 is provided on one side of the casing 1, which is electrically connected to the electronic control board 9. The display screen 14 can display the air conditioner's operating mode, set temperature, indoor ambient temperature, fan speed, and fault codes in real time, making the operation intuitive and convenient.

[0038] Furthermore, to facilitate the connection of the decorative cover 16, such as Figure 6-7As shown, limiting grooves 101 are provided at both the upper and lower ends of the housing 1. The limiting grooves 101 are located on one side of the upper air inlet duct 3 and the lower air inlet duct 4, and can be slidably connected with limiting blocks 17. The limiting blocks 17 are located at both ends of the decorative cover 16, and the decorative cover 16 is adapted to the working dimensions of the housing 1. The sliding connection structure fully adapts to the construction process of the later indoor unit installation. After the interior decoration is completed and the indoor unit is assembled, the decorative cover 16 is added to complete the final finish. By combining the standard length of the main unit with the customized length of the decorative cover 16, it can flexibly adapt to different room sizes and multi-unit installation scenarios, achieving a high degree of uniformity in the appearance style of the whole house air conditioner and enhancing the overall look. The overall visual aesthetics of the space perfectly match the design requirements of modern minimalist decoration. During use, the decorative cover 16 can move flexibly on the limiting groove 101. It is made of the same high-strength matte ABS material as the housing 1, with a wall thickness of 2mm. The surface undergoes the same batch of matte anti-scratch treatment to ensure a high degree of uniformity in color and texture with the housing. The length of the decorative cover 16 can be modularly customized according to different horsepower models and on-site installation requirements. The length of a single segment ranges from 300 to 1500mm. The joints use a mortise and tenon structure, with a joint gap ≤0.5mm and a flatness error ≤0.2mm / m. After installation, the surface is flat and seamless, presenting a unified visual effect.

[0039] like Figure 10 As shown, a rectangular through-hole is symmetrically opened on the working surface of the housing 1 near the air outlet duct 2. A first magnetic suction member 102 is located inside the rectangular through-hole. The surface of the first magnetic suction member 102 is flush with the inner wall of the through-hole, without protrusions or depressions, ensuring both a smooth appearance and preventing the risk of the first magnetic suction member 102 falling off. It is inserted into the quick-release filter 18. A second magnetic suction member 21 is located on one side of the quick-release filter 18. The second magnetic suction member 21 is magnetically connected to the first magnetic suction member 102. The polarity of the second magnetic suction member 21 is opposite to that of the first magnetic suction member 102, and the two magnetically attract each other to form a stable magnetic attraction. Connection structure; During installation, the quick-release filter 18 only requires the operator to align the filter with the rectangular through hole and gently push it in. When the second magnetic suction component 21 contacts the first magnetic suction component 102, it will automatically be attracted and positioned. No tools are required throughout the process, and installation can be completed by a single person. During disassembly, simply hold the hidden handle and pull outward to overcome the magnetic attraction force to remove the filter for cleaning and replacement, thereby avoiding increased energy consumption due to dust accumulation. At the same time, the high-efficiency filtration performance can effectively intercept pollutants in the air and prevent bacteria and mold from growing on the evaporator surface, ensuring indoor air quality from the source and protecting the respiratory health of users.

[0040] like Figure 4 and Figure 9As shown, the evaporator 5 includes: multiple copper tubes 502 and a fixing plate 501 for fixing the copper tubes 502; the copper tubes 502 are provided with multiple corrugated fins 503; the fixing plate 501 is detachably connected to the inner wall of the casing 1, and the connection between the fixing plate 501 and the casing 1 has a stainless steel pivot hinge structure, so that the entire evaporator 5 has a 0-180° full-angle flip-up function without dead angles, completely solving the industry pain point of poor pipeline adaptability of traditional fixed evaporators; if the refrigerant pipeline route does not match the preset direction at the installation site, there is no need to forcibly bend the copper tubes 502, just loosen the fixing screws to flip the evaporator to any angle to complete the pipeline connection, greatly improving the installation adaptability; the lateral length of the copper tubes 502 is adapted to the length of the casing 1; specifically, the The lateral extension length of the copper tube 502 is precisely matched with the overall length of the casing 1, allowing for linear modular expansion based on different rated power from 1 horsepower to 3 horsepower, forming a standardized heat exchange platform applicable to the entire series. One side of the copper tube 502 is connected to the electronic expansion valve 19, and the other end of the electronic expansion valve 19 is connected to the external interface 504, forming a complete refrigerant flow loop. The electronic expansion valve 19 is a stepper motor driven pulse electronic expansion valve. It is electrically connected to the electronic control board 9 through a shielded signal line. The electronic control board 9 can dynamically adjust the opening of the electronic expansion valve 19 in real time based on multiple parameters such as indoor ambient temperature, set temperature, evaporator 5 tube wall temperature, and compressor operating frequency, precisely controlling the refrigerant flow into the evaporator, so that the evaporator 5 is always in the optimal superheat operating state, achieving precise temperature control.

[0041] like Figure 5 As shown, the housing 1 is symmetrically equipped with guide plates 20. The guide plates 20 are Z-shaped and are made of glass fiber reinforced ABS engineering plastic injection molding, eliminating the risk of deformation and cracking. The guide plates 20 are located between the evaporator 5 and the cross-flow fan 6, and are used to adjust the air supply direction. Through precise airflow guidance and rectification, the airflow transmission efficiency and air supply uniformity are greatly improved, while effectively reducing operating noise. At the same time, the heat exchange area of ​​the evaporator 5 and the air inlet area of ​​the cross-flow fan 6 are precisely separated and directionally connected.

[0042] like Figure 4As shown, the antibacterial forced drainage system includes: a guide channel 8 located at the bottom of the evaporator 5, a water collection tray 11 located on the decorative cover 16, and an external vacuum pump located on the outdoor unit of the air conditioner; the guide channel 8 has the same lateral length as the evaporator 5, achieving 100% full coverage of the condensate generation area of ​​the evaporator 5, with no dead corners for collection, and is connected to the water collection tray 11 through a connecting pipe 12, ensuring that all condensate flows to the outlet under gravity; the water collection tray 11 is a sunken type, capable of storing condensate for more than 2 hours under extreme operating conditions, providing sufficient buffer time for the start and stop of the vacuum pump; the water collection tray 11 is equipped with a water level sensor 1101, which can monitor the water accumulation in real time. The water level in the basin is recorded and the signal is transmitted to the electronic control board 9. The water collection basin 11 is connected to the antibacterial hose 1102 via a one-way valve 10. The one-way valve 10 can completely block the backflow of condensate in the pipeline when the vacuum pump stops running, thus eliminating the problem of condensate backflow caused by insufficient installation height or excessive outdoor unit wind pressure in traditional drainage systems. The antibacterial hose 1102 is connected to the external vacuum pump. The antibacterial hose 1102 is made of food-grade PE material and has silver ion antibacterial agent uniformly added inside. The antibacterial rate against common pathogens is ≥99%, which can effectively inhibit the formation of bacteria and biofilm on the inner wall of the pipeline and prevent the drainage pipeline from producing odors after long-term use and spreading into the room with the air conditioning wind.

[0043] like Figure 3 and Figure 8 As shown, mounting holes 13 are provided at the four corners of the back of the housing 1, and connectors 15 are provided in the mounting holes 13. The connectors 15 are parallel to the cross section of the housing 1. This realizes seamless installation in both wall-mounted and ceiling-mounted modes, while greatly improving the structural stability, construction convenience and long-term safety of the installation.

Claims

1. A novel ultra-thin indoor air conditioner unit, characterized in that: include: The casing (1), the evaporator (5) vertically installed inside the casing (1), the cross-flow fan (6) symmetrically arranged along the axial direction of the evaporator (5), the antibacterial forced drainage system integrated at the bottom of the casing (1), and the electrical control board (9). An air outlet duct (2) is opened on one side of the working surface of the casing (1). The air outlet duct (2) is located on the other side of the evaporator (5) and a preset working distance is left between it and the evaporator (5). The upper air inlet (3) and lower air inlet (4) are provided at the upper and lower ends of the casing (1) relative to the cross-flow fan (6). The antibacterial forced drainage system is used to collect the condensate generated during the operation of the evaporator (5); The cross-flow fan (6) is connected to the casing (1) via a support frame (7); The electronic control board (9) is used to control the working status of each component.

2. The novel ultra-thin air conditioner indoor unit according to claim 1, characterized in that: The housing (1) has limit grooves (101) at both the upper and lower ends. The limit grooves (101) are located on one side of the upper air inlet (3) and the lower air inlet (4), and can be slidably connected with the limit block (17). The limit block (17) is located at both ends of the decorative cover (16), and the decorative cover (16) is adapted to the working size of the housing (1).

3. The novel ultra-thin air conditioner indoor unit according to claim 1 or 2, characterized in that: The housing (1) has a rectangular through hole symmetrically opened on the working side near the air outlet (2). The rectangular through hole has a first magnetic suction member (102) inside, which is inserted into the quick-release filter (18). The quick-release filter (18) has a second magnetic suction member (21) on one side, and the second magnetic suction member (21) is magnetically connected to the first magnetic suction member (102).

4. The novel ultra-thin air conditioner indoor unit according to claim 1, characterized in that: The housing (1) is symmetrically provided with guide plates (20). The guide plates (20) are Z-shaped and located between the evaporator (5) and the cross-flow fan (6). The guide plates (20) are used to adjust the air supply direction.

5. The novel ultra-thin air conditioner indoor unit according to claim 1, characterized in that: The antibacterial forced drainage system includes: a guide channel (8) at the bottom of the evaporator (5), a water collection tray (11) on the decorative cover (16), and an external vacuum pump on the outdoor unit of the air conditioner. The guide channel (8) is connected to the water collection tray (11) through the connecting pipe (12); The water collection tray (11) is a sunken type and is equipped with a water level sensor (1101) inside. It is connected to the antibacterial hose (1102) through a one-way valve (10). The antibacterial hose (1102) is connected to the external vacuum pump.

6. The novel ultra-thin air conditioner indoor unit according to claim 1, characterized in that: The evaporator (5) includes: a plurality of copper tubes (502) and a fixing plate (501) for fixing the copper tubes (502); the copper tubes (502) are provided with a plurality of corrugated fins (503); the lateral length of the copper tubes (502) is adapted to the length of the housing (1).

7. The novel ultra-thin air conditioner indoor unit according to claim 1, characterized in that: One side of the copper tube (502) is connected to the electronic expansion valve (19), and the other end of the electronic expansion valve (19) is connected to the external interface (504).

8. The novel ultra-thin air conditioner indoor unit according to claim 1, characterized in that: Mounting holes (13) are provided at the four corners of the back of the housing (1). A connector (15) is provided in the mounting hole (13). The connector (15) is parallel to the cross section of the housing (1).

9. The novel ultra-thin air conditioner indoor unit according to claim 1, characterized in that: The casing (1) is provided with a display screen (14) on one side, and the display screen (14) is electrically connected to the electronic control board (9).

Images