Ceiling type air conditioner

Abstract

This utility model relates to a ceiling-mounted air conditioner, comprising: a housing having a first chamber and a second chamber that are not interconnected; an evaporator fan disposed in the first chamber, the first chamber having a first air inlet and a first air outlet, the air outlet of which is connected to the first air outlet; an evaporator disposed in the first chamber, the evaporator fan driving airflow from the first air inlet through the evaporator and out of the first air outlet; a condenser fan disposed in the second chamber, the second chamber having multiple second air inlets and second air outlets, the air outlet of which is connected to the second air outlet; multiple condensers disposed in the second chamber, the condenser fan driving airflow to enter from the multiple second air inlets, and after heat exchange in the multiple condensers, out of the second air outlet; a compressor disposed in the second chamber, its exhaust port being connected in series with multiple condensers via connecting pipes, the outlet of the final stage condenser being connected to the inlet of the evaporator via a throttling device, and the outlet of the evaporator being connected to the suction port of the compressor via a return pipe.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and more specifically, to a ceiling-mounted air conditioner. Background Technology

[0002] Current ceiling-mounted air conditioners on the market suffer from large and thick cabinets, primarily catering to the OEM market, making them unsuitable for many aftermarket users. Furthermore, even after adjustments to cabinet dimensions and component layouts to accommodate smaller spaces, shortcomings remain, including installation difficulties due to limited space, poor heat dissipation, and limited functionality.

[0003] Therefore, there is an urgent need to develop a ceiling-mounted air conditioner that is small in size, easy to install, has good heat dissipation, and is multifunctional. Utility Model Content

[0004] This utility model provides a ceiling-mounted air conditioner to at least solve the problems of existing ceiling-mounted air conditioners, such as large size, difficult installation, poor heat dissipation, and limited functionality.

[0005] To achieve the above objectives, this utility model provides a ceiling-mounted air conditioner, comprising:

[0006] The enclosure has a first chamber and a second chamber that are not interconnected.

[0007] An evaporator fan is disposed in the first chamber, the first chamber being provided with a first air inlet and a first air outlet, and the air outlet of the evaporator fan is connected to the first air outlet;

[0008] An evaporator is disposed in the first chamber, the evaporator is located near the first air inlet, and the evaporation fan drives the airflow to be discharged from the first air inlet through the evaporator and from the first air outlet.

[0009] A condenser fan is disposed in the second chamber, the second chamber being provided with multiple second air inlets and second air outlets, and the air outlet of the condenser fan is connected to the second air outlets;

[0010] Multiple condensers are disposed in the second chamber, and the multiple condensers are respectively disposed corresponding to multiple second air inlets. The condenser fan drives the airflow to enter from the multiple second air inlets, and after heat exchange in the multiple condensers, it is discharged from the second air outlet.

[0011] The compressor is located in the second chamber. The exhaust port of the compressor is connected in series with multiple condensers via connecting pipes. The outlet of the last-stage condenser is connected to the inlet of the evaporator via a throttling device. The outlet of the evaporator is connected to the suction port of the compressor via a return pipe, thus forming a refrigerant circulation path.

[0012] Furthermore, the first air outlet and the second air outlet are arranged opposite to each other on both sides of the housing.

[0013] Furthermore, the multiple second air inlets are arranged symmetrically on both sides, respectively located on both sides of the length direction of the housing.

[0014] Furthermore, the evaporator fan, the compressor, and the condenser fan are arranged sequentially along the length of the casing.

[0015] Furthermore, multiple condensers are arranged on both sides of the compressor based on the longitudinal axis of the housing.

[0016] Furthermore, a PTC heating module is installed at the first air outlet.

[0017] Furthermore, a condensate tray integrally formed with the housing is provided at the bottom of the first chamber, and the condensate tray is connected to a DC water pump, through which the condensate is discharged from the housing.

[0018] Furthermore, the condensate pan is connected to a water level float alarm device, which triggers an alarm when the condensate pan is full.

[0019] Furthermore, the compressor is fixed to the bottom plate of the second chamber by rubber shock-absorbing pads and bolts, and both the evaporator fan and the condenser fan are installed with rubber pads for shock absorption.

[0020] Furthermore, the outer cover on the mounting side of the enclosure is provided with multiple lifting lugs, and the lifting lugs are integrally formed with the enclosure.

[0021] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0022] This utility model of ceiling-mounted air conditioner adopts an integrated design that eliminates the need for an outdoor unit, solving the problem of installation limitations in scenarios where there is no space for an outdoor unit. The internal layout of the unit integrates the evaporator fan, evaporator, compressor, dual condensers, and condenser fan into a dual-chamber structure through optimized layout, further optimizing the overall size of the unit and making it suitable for installation scenarios with limited space. When installing the integrated ceiling-mounted air conditioner, it can be designed to be flush-mounted or recessed, with the unit embedded in the ceiling, leaving only the air outlet and return air outlet, without occupying floor space. It is suitable for small kitchens and environments with low ceilings, taking into account both the overall integrity of the pre-installation market and the flexibility of the aftermarket.

[0023] This invention features a multi-stage condenser providing multiple times the heat dissipation area, coupled with symmetrical air inlets on both sides and a high-pressure condenser fan to ensure stable operation under high-temperature conditions. It also employs a dual-fan independent operation mode: the evaporator fan handles indoor air circulation, while the condenser fan can be independently activated for unidirectional ventilation, supporting simultaneous blowing and ventilation, thus avoiding the airflow reduction caused by switching between ducts in traditional single-fan systems. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the first internal layout structure of an embodiment of the ceiling-mounted air conditioner of this utility model;

[0025] Figure 2 This is a schematic diagram of the second internal layout structure of an embodiment of the ceiling-mounted air conditioner of this utility model;

[0026] Figure 3 This is a schematic diagram of the connection structure between the compressor, evaporator, and multi-stage condenser of this utility model;

[0027] Figure 4 This is a schematic diagram of the first air duct design structure of an embodiment of the ceiling-mounted air conditioner of this utility model;

[0028] Figure 5 This is a schematic diagram of the second air duct design structure of an embodiment of the ceiling-mounted air conditioner of this utility model;

[0029] Figure 6 This is a schematic diagram of the condensate pan structure of the ceiling-mounted air conditioner of this utility model;

[0030] Figure 7 This is a schematic diagram of the installation of the ceiling-mounted air conditioner of this utility model;

[0031] Figure 8 This is a schematic diagram of the junction box structure of the main control board of the ceiling-mounted air conditioner of this utility model.

[0032] In the above image:

[0033] 1. Housing; 110. Partition; 120. First chamber; 130. Second chamber; 140. First air inlet; 150. First air outlet; 160. Second air inlet; 170. Second air outlet; 2. Evaporator fan; 3. Evaporator; 4. Condenser fan; 5. Condenser; 6. Compressor; 61. Compressor charging pipe; 62. Compressor exhaust pipe; 63. Condenser outlet pipe; 64. Filter; 65. Capillary tube; 66. Condenser relay pipe; 67. Compressor return pipe; 68. Evaporator inlet pipe; 69. Evaporator outlet pipe; 7. Condensate pan; 8. DC water pump; 9. Water level float alarm device; 10. Lifting lug; 11. Main control board junction box. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] In the description of this application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "level," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used 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, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] The following is in conjunction with the appendix Figure 1-8 The technical solution of this embodiment is described in detail. Unless otherwise specified, the following implementation methods and embodiments can be combined with each other.

[0038] like Figures 1-8 As shown, this utility model provides a ceiling-mounted air conditioner, including a housing 1, an evaporator fan 2, an evaporator 3, a condenser fan 4, multiple condensers 5, and a compressor 6.

[0039] The housing 1 has a first chamber 120 and a second chamber 130 that are not connected to each other.

[0040] In some embodiments, a partition 110 is provided inside the housing 1 to divide the housing 1 into two non-communicating chambers, wherein the evaporator fan 2 and the evaporator 3 are located in the first chamber 120, and the condenser fan 4, the condenser 5, and the compressor 6 are located in the second chamber 130, thereby forming an independent air circulation space to ensure that the airflow in the two chambers does not interfere with each other, so as to optimize the heat exchange efficiency.

[0041] Evaporator 2 is installed in the first chamber 120. The first chamber 120 is provided with a first air inlet 140 and a first air outlet 150. The air outlet of evaporator 2 is connected to the first air outlet 150.

[0042] Evaporator 3 is located in the first chamber 120 and is positioned near the first air inlet 140. Evaporator fan 2 drives airflow from the first air inlet 140 through evaporator 3 and out through the first air outlet 150.

[0043] In some embodiments, the first chamber 120 is an evaporative heat exchange chamber, which integrates an evaporative fan 2 and an evaporator 3. The evaporator 3 is arranged close to the first air inlet 140 to optimize heat exchange efficiency. Indoor air is introduced into the chamber through the first air inlet 140. Driven by the evaporative fan 2, the airflow undergoes heat exchange through the evaporator 3, and finally the processed air is sent into the room through the first air outlet 150, i.e., the indoor air outlet.

[0044] The condenser fan 4 is located in the second chamber 130. The second chamber 130 is provided with multiple second air inlets 160 and second air outlets 170. The air outlet of the condenser fan 4 is connected to the second air outlets 170.

[0045] Multiple condensers 5 are disposed in the second chamber 130, and the multiple condensers 5 are respectively disposed corresponding to multiple second air inlets 160. The condensing fan 4 drives the airflow to enter from the multiple second air inlets 160, and after heat exchange by the multiple condensers 5, it is discharged from the second air outlet 170.

[0046] The compressor 6 is located in the second chamber 130. The exhaust port of the compressor 6 is connected in series with multiple condensers 5 through connecting pipes. The outlet of the final condenser 5 is connected to the inlet of the evaporator 3 through a throttling device. The outlet of the evaporator 3 is connected to the suction port of the compressor 6 through a return pipe, thus forming a refrigerant circulation path.

[0047] In some embodiments, the second chamber 130 is a condensation and heat dissipation chamber. This chamber integrates a condenser fan 4, multiple condensers 5, and a compressor 6. The multiple condensers 5 are respectively positioned corresponding to multiple second air inlets 160 of the second chamber 130, forming a highly efficient air intake heat exchange structure. The condenser fan 4 drives indoor air to flow in through the multiple second air inlets 160, where it exchanges heat with the high-temperature, high-pressure refrigerant through the condensers 5, carrying the heat away and dissipating it outdoors through the second air outlet 170.

[0048] In some embodiments, the refrigerant circulation path and working process are as follows: the compressor 6 discharges high-temperature, high-pressure gaseous refrigerant from the exhaust port, which is then sequentially fed into multiple condensers 5 through copper pipes. Inside the condensers 5, the high-temperature gaseous refrigerant exchanges heat with the indoor air driven by the condenser fan 4, releasing heat and gradually condensing into a high-pressure liquid. The liquid refrigerant flows through the outlet of the final condenser 5 into a throttling device, which can be an expansion valve or a capillary tube 65. This throttling and pressure reduction creates a low-temperature, low-pressure liquid refrigerant, which then enters the evaporator 3. In the evaporator 3, the low-temperature, low-pressure liquid refrigerant absorbs heat from the indoor air, evaporating into a low-temperature, low-pressure gaseous refrigerant, which finally returns to the compressor 6 suction port through the return pipe, completing the refrigerant circulation.

[0049] Preferably, the first air outlet 150 and the second air outlet 170 are arranged opposite to each other on both sides of the housing 1.

[0050] In some embodiments, Figure 1 This is a schematic diagram of the first internal layout structure of an embodiment of a ceiling-mounted air conditioner, as shown below. Figure 1 As shown, in this embodiment, the first air outlet 150 and the second air outlet 170 are positioned opposite each other on the long side of the housing 1. The internal layout structure of the long-side air outlet is based on the principle of minimizing bends in the air outlet duct, resulting in a smaller bend angle in the connecting duct between the air outlet and the panel air outlet. Specifically, the long-side air outlet scheme shortens the straight-line distance to the panel air outlet by arranging the air outlet on the long side of the housing 1, reduces the number of duct bends, and avoids airflow attenuation caused by S-bends or large-angle bends in the duct, thereby optimizing the cold air circulation path and ensuring the airflow and cooling effect of the indoor air outlet. At the same time, the fixed air outlet on the long side can reduce the deformation of the housing 1 and improve the stability and strength of the main unit.

[0051] In some embodiments, Figure 2 This is a schematic diagram of the second internal layout structure of an embodiment of a ceiling-mounted air conditioner, as shown below. Figure 2 As shown, in this embodiment, the first air outlet 150 and the second air outlet 170 are positioned opposite each other on the short side of the housing 1. This layout is based on the principles of installation flexibility and pipeline adaptability, making the short-side air outlet scheme more suitable for narrow installation scenarios such as when the stove is close to the exterior wall. Specifically, by arranging the air outlets on the short side of the housing 1, the short-side air outlet scheme avoids the problem of pipe bends caused by the length of the unit. For example, when the stove is close to the exterior wall, the pipe does not need to bend at a large angle to connect to the outside. At the same time, the opposite arrangement of the two air outlets meets the principle of minimum straightness in pipe routing, reducing the airflow attenuation caused by S-bends in the pipe.

[0052] Preferably, the multiple second air inlets 160 are arranged symmetrically on both sides, respectively located on both sides of the length direction of the housing 1.

[0053] Preferably, multiple condensers 5 are arranged on both sides of the compressor 6 based on the longitudinal axis of the housing 1.

[0054] In some embodiments, such as Figure 3 As shown, the connection structure between the compressor 6, evaporator 3, and multi-stage condenser 5 is as follows: the exhaust pipe of the compressor 6 delivers high-temperature, high-pressure gaseous refrigerant to the inlet of the first-stage condenser 5. After heat exchange with the outside air in the first-stage condenser 5, the refrigerant flows into the second-stage condenser 5 through the condenser relay pipe 66 for further heat dissipation and condensation. The outlet of the second-stage condenser 5 is connected to a filter 64 and a capillary tube 65 via the condenser outlet pipe 63, and then connected to the evaporator inlet pipe 68. The low-temperature, low-pressure liquid refrigerant absorbs heat and evaporates into a gaseous state in the evaporator 3. The evaporator outlet pipe 69 connects to the compressor return pipe 67, returning the low-temperature, low-pressure gaseous refrigerant to the compressor 6 suction port, forming a complete refrigerant circulation path. Furthermore, the compressor refrigerant charging pipe 61 is connected to the return pipe near the compressor 6 suction port for refrigerant replenishment during system installation or maintenance. This pipe is connected to the circulation pipeline via a check valve or shut-off valve to ensure the sealing and safety of the refrigerant charging process. This connection structure improves heat dissipation efficiency through the series design of two-stage condensers 5. Combined with the precise throttling of capillary tube 65 and the impurity interception of filter 64, it ensures the heat exchange effect of evaporator 3 and the stability of system operation, making it suitable for refrigeration needs under high-temperature conditions.

[0055] In some embodiments, such as Figure 4-5 As shown, in both the long-side and short-side air outlet layouts, the second air inlet 160 is positioned in the same location.

[0056] In some embodiments, multiple condensers 5 can be configured as two, symmetrically arranged on both sides of the compressor 6. Correspondingly, multiple second air inlets 160 can also be configured as two, adopting a double-sided symmetrical layout, respectively arranged on both sides of the length direction of the housing 1, and corresponding to the positions of the two condensers 5 inside the housing 1, forming a double-sided air intake heat exchange structure. Specifically, the two condensers 5 are symmetrically arranged on both sides of the compressor 6 based on the axis of the length direction of the housing 1. Each condenser 5 corresponds to a second air inlet 160 on one side. When the condenser fan 4 is working, indoor air flows in simultaneously from the second air inlets 160 on both sides of the housing 1, passes through the corresponding condenser 5 and exchanges heat with the high-temperature refrigerant, and then carries the heat and is discharged outdoors from the second air outlet 170. This double-sided symmetrical air intake layout can significantly increase the air intake area and reduce wind resistance. Combined with the multi-stage heat exchange design of the dual condensers 5, it effectively improves heat dissipation efficiency, ensures that the air conditioner can still operate stably under high-temperature conditions, and reduces the problem of uneven airflow caused by single-sided air intake, making the heat exchange of the condensers 5 more uniform and efficient.

[0057] In some embodiments, Figure 4 Designed for side-discharge air ducts along the long side, such as Figure 1 and Figure 4As shown, its air duct structure is based on the principle of minimizing bends in the air outlet pipe. The first air outlet 150 and the second air outlet 170 are positioned opposite each other on the long side of the housing 1, which shortens the straight-line distance between the indoor air outlet and the panel air outlet. Combined with the design of the guide plate in the air duct, the airflow is guided, reducing the air volume attenuation caused by S-bends or large-angle bends. At the same time, the second air inlet 160 is symmetrically arranged on both sides of the length of the housing 1, corresponding to the two condensers 5 symmetrically distributed on both sides of the compressor 6, forming an air duct path of "air inlet on both sides - heat exchange in the middle - air outlet on the long side". The condenser fan 4 drives the air to flow in from the second air inlet 160 on both sides, and after heat exchange in the condenser 5, it is discharged from the second air outlet 170 on the long side. The cross-sectional area of ​​the air duct is matched with the air volume of the fan to ensure uniform distribution of heat dissipation airflow.

[0058] In some embodiments, Figure 5 Designed for short-side side air outlet, such as Figure 2 and Figure 5 As shown, the first air outlet 150 and the second air outlet 170 are positioned opposite each other on the short side of the housing 1. The air duct layout adapts to scenarios with limited installation space by shortening the straight-line distance between the air outlet and the external wall or pipe interface. The second air inlet 160 maintains a symmetrical layout on both sides, corresponding to the dual condensers 5 on both sides of the compressor 6, forming a compact air duct structure of "air inlet on both sides - air outlet on the short side". The airflow driven by the condenser fan 4 is discharged from the second air outlet 170 on the short side after heat exchange through the condenser 5. The air duct design takes into account the installation flexibility. In scenarios such as when the stove is close to the external wall, the pipe detour can be reduced, and the air outlet on the short side can be directly connected to the outdoor exhaust outlet, reducing the installation difficulty.

[0059] Preferably, the evaporator fan 2, compressor 6 and condenser fan 4 are arranged sequentially along the length of the casing.

[0060] In some embodiments, the compressor 6 is relatively heavy. Its arrangement with the evaporator fan 2 and the condenser fan 4 along the length of the casing can optimize the center of gravity distribution of the casing 1, so that the center of gravity of the whole unit is concentrated in the middle of the casing 1, avoiding tilting due to the shift of the center of gravity during hoisting. At the same time, this arrangement shortens the length of the internal copper pipe connection, reduces the pressure loss along the refrigerant circulation, and by placing the heavy compressor 6 in the middle position, the symmetrical distribution of the fans on both sides can be used to balance the force on the casing 1, improving the overall structural strength and stability.

[0061] Preferably, a PTC heating module is provided at the first air outlet 150.

[0062] In some embodiments, the PTC heating module located at the first air outlet 150 operates in heating mode. The evaporator fan 2 blows air through the PTC heating module to form warm air flowing into the room. The module can automatically adjust its power according to the indoor temperature. In conjunction with the design of the compressor 6 not starting, it can achieve efficient heating and avoid energy waste. At the same time, the PTC heating module does not occupy additional cavity space and forms a compact design with the layout of the first chamber 120, ensuring the rapid response and stable operation of the heating function.

[0063] Preferably, the bottom of the first chamber 120 is provided with a condensate pan 7 integrally formed with the box body 1, the condensate pan 7 is connected to a DC water pump 8, and the condensate is discharged from the box body 1 through the DC water pump 8.

[0064] Preferably, the condensate pan 7 is connected to a water level float alarm device 9, and the alarm is triggered when the condensate pan 7 is full of water.

[0065] In some embodiments, such as Figure 6 As shown, the condensate pan 7 and the lower casing 1 of the main unit are integrated. Condensate is generated because the high-temperature, moisture-containing air in the room is forced into a negative pressure zone by the evaporator fan 2. When the air passes through the low-temperature evaporator 3, it exchanges heat with the evaporator 3, lowering its temperature below the dew point. Water is excreted and remains on the aluminum fins of the evaporator 3, collecting and flowing into the condensate pan 7. The condensate is then discharged through the DC water pump 8 to the pump drain port. The pump drain port and the pump drain connector are connected by a water pipe to discharge the condensate from the unit to a designated location. A water level float indicates whether the main unit is installed horizontally based on the liquid level. When the pan is full, the control system issues an alarm and stops the entire unit to prevent water leakage and property damage. The integrated structure of the condensate pan 7 reduces molding costs and increases pan strength, while preventing condensate overflow that could damage the equipment or cause leaks. The automatic drainage and alarm functions ensure reliable operation of the equipment in humid environments, enhancing the practicality and safety of the ceiling-mounted air conditioner.

[0066] Preferably, the compressor 6 is fixed to the bottom plate of the second chamber 130 by rubber damping pads and bolts, and the evaporator fan 2 and the condenser fan 4 are both installed with rubber damping pads.

[0067] In some embodiments, the compressor 6 is fixed to the bottom plate of the second chamber 130 by rubber damping pads and bolts. The evaporator fan 2 and the condenser fan 4 are both installed with rubber pads for vibration damping. The elastic deformation of the rubber pads absorbs the vibration energy during the operation of the equipment, reducing the mechanical noise transmitted to the housing 1 and the ceiling. At the same time, the bolt fixing ensures that the components are installed firmly, avoiding loosening of the connection due to vibration, so that the noise level of the whole machine during operation is controlled within a reasonable range, improving the user's comfort.

[0068] Preferably, the outer cover on the mounting side of the housing 1 is provided with a plurality of mounting lugs 10, and the lugs 10 are integrally formed with the housing 1.

[0069] In some embodiments, such as Figures 1-2 As shown, the outer cover of the mounting side of the housing 1 is provided with multiple mounting lugs 10, and the lugs 10 are integrally formed with the housing 1. The lugs 10 can be set in the middle or on the outside of the housing 1. Considering that the outer cover of the housing 1 is made of sheet metal shell and the main weight of the compressor 6 is concentrated in the middle of the housing 1, in order to ensure the strength of the housing 1 and avoid the middle from sinking, it is preferable to set the lugs 10 in the middle of the housing 1. This can distribute the load of the housing 1, improve the strength and installation stability of the housing 1. At the same time, the lugs 10 are embedded in the four sides of the housing 1 to avoid protrusion affecting the installation, making the whole machine run more stably and reliably.

[0070] In some embodiments, taking a pendant-style air conditioner with air outlet on the long side as an example, such as... Figure 7 and Figure 1 As shown, during actual installation, four expansion bolts are used to fix the housing 1 to the ceiling through the lifting lugs 10. The lifting lugs 10 and the sheet metal housing 1 are integrally formed to distribute the load. The air inlet is connected to a pre-drilled hole in the wall through a flexible pipe to form an exhaust channel, while the air outlet is connected to the air outlet of the ceiling panel through a copper foil tube to achieve the function of blowing air and exchanging air. This installation method adopts a ceiling-free design, which only requires removing three 30×30cm aluminum panels to expose the installation space. The entire unit is installed by positioning with the lifting lugs 10, fixing with expansion bolts, and quickly connecting the pipes. This not only ensures the stability of the center of gravity of the heavy components such as the compressor 6, but also avoids decoration damage caused by ceiling removal, improving installation efficiency and scene adaptability.

[0071] In some embodiments, the compressor 6 of this ceiling-mounted air conditioner adopts a customized small-sized model, adapted to a main unit structure design with a height of 230mm, meeting the installation requirements of small apartments with low ceilings. By re-optimizing the internal layout structure, the customized miniaturized compressor 6, while ensuring cooling capacity, works with a redesigned fan mechanism to meet airflow requirements. At the same time, the dual condenser 5 design ensures the heat dissipation requirements of the small-sized model, and the optimized pipe ratio improves heat exchange efficiency and reduces space waste, ultimately achieving an overall unit size of 870×270×230mm, meeting the needs of a large aftermarket.

[0072] In some embodiments, the ceiling-mounted air conditioner of this utility model adopts a multi-layer moisture-proof design. The compressor 6 casing is coated with a paint to form a moisture-proof protective layer; the housing 1 is made of ABS injection molding to improve waterproof performance; the evaporator 3 and condenser 5 use oxygen-free internal threaded copper tubes with blue hydrophobic coated aluminum sheets to reduce condensate adhesion; the dual motors (evaporator fan 2 and condenser fan 4) are sealed with a shell to isolate moisture; the electrical control system is placed in an independent cavity and coated with three-proof paint, ensuring stable operation of the equipment in a humid environment through multiple protections.

[0073] In some embodiments, such as Figure 8 As shown, the main control board junction box 11 is located at the bottom of the enclosure 1. The junction box 11 is fixed to the enclosure 1 using a limiting cover plate, and is independent of the internal chamber of the enclosure 1, facilitating external cable access and avoiding interference with heat exchange components. The junction box features a waterproof and dustproof design, with internal terminal blocks and cable trays for orderly connection of control lines to various components. It is also isolated from other chambers of the enclosure 1 by a sheet metal baffle to prevent condensation or dust from affecting the stability of electrical connections, ensuring precise control of the entire machine's operating status by the main control board.

[0074] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A ceiling type air conditioner characterized by comprising: include: The enclosure has a first chamber and a second chamber that are not interconnected. An evaporator fan is disposed in the first chamber, the first chamber being provided with a first air inlet and a first air outlet, and the air outlet of the evaporator fan is connected to the first air outlet; An evaporator is disposed in the first chamber, the evaporator is located near the first air inlet, and the evaporation fan drives the airflow to be discharged from the first air inlet through the evaporator and from the first air outlet. A condenser fan is disposed in the second chamber, the second chamber being provided with multiple second air inlets and second air outlets, and the air outlet of the condenser fan is connected to the second air outlets; Multiple condensers are disposed in the second chamber, and the multiple condensers are respectively disposed corresponding to multiple second air inlets. The condenser fan drives the airflow to enter from the multiple second air inlets, and after heat exchange in the multiple condensers, it is discharged from the second air outlet. The compressor is located in the second chamber. The exhaust port of the compressor is connected in series with multiple condensers via connecting pipes. The outlet of the last-stage condenser is connected to the inlet of the evaporator via a throttling device. The outlet of the evaporator is connected to the suction port of the compressor via a return pipe, thus forming a refrigerant circulation path.

2. The ceiling-mounted air conditioner according to claim 1, characterized in that, The first air outlet and the second air outlet are arranged opposite each other on both sides of the housing.

3. The ceiling-mounted air conditioner according to claim 1, wherein The multiple second air inlets are arranged symmetrically on both sides, respectively located on both sides of the length direction of the housing.

4. The ceiling-mounted air conditioner according to claim 1, wherein The evaporator fan, the compressor, and the condenser fan are arranged sequentially along the length of the housing.

5. The ceiling-mounted air conditioner according to claim 4, wherein The plurality of condensers are arranged on both sides of the compressor based on the axis along the length of the housing.

6. The ceiling-mounted air conditioner according to claim 1, wherein A PTC heating module is installed at the first air outlet.

7. The ceiling-mounted air conditioner according to claim 1, wherein The bottom of the first chamber is provided with a condensate tray integrally formed with the box body. The condensate tray is connected to a DC water pump, and the condensate is discharged from the box body through the DC water pump.

8. The ceiling-mounted air conditioner according to claim 7, wherein The condensate pan is connected to a water level float alarm device, which triggers an alarm when the condensate pan is full.

9. The ceiling-mounted air conditioner according to claim 1, wherein The compressor is fixed to the bottom plate of the second chamber by rubber shock-absorbing pads and bolts, and the evaporator fan and the condenser fan are both installed with rubber pads for shock absorption.

10. The ceiling-mounted air conditioner according to claim 1, wherein The mounting side cover of the enclosure is provided with multiple lifting lugs, and the lifting lugs are integrally formed with the enclosure.

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