Up-down air supply air conditioner

Abstract

The up-down air supply air conditioner comprises a fan module, an upper fan module cavity, a lower fan module cavity, a heat exchanger cavity, an upper air port, a lower air port, a heat exchanger and a shell, and is characterized in that the upper fan module cavity, the lower fan module cavity, the heat exchanger cavity and the upper fan module cavity are defined by the shell, the upper air port is formed in the upper portion of the shell, and the lower air port is formed in the lower portion of the shell. The upper fan module cavity and the upper air opening are formed in the upper portion of the shell, the lower fan module cavity and the lower air opening are formed in the lower portion of the shell, the heat exchanger cavity is formed in the middle of the shell and located between the upper fan module cavity and the upper air opening and between the lower fan module cavity and the lower air opening, the heat exchanger is installed in the heat exchanger cavity, and the fan module is in an inserted movable type and installed in the upper fan module cavity or the lower fan module cavity. The draught fan module comprises a draught fan and a shell, the draught fan is installed in the shell, an air outlet and an air suction opening of the draught fan are communicated with the heat exchanger cavity and are communicated with the upper air opening and the lower air opening, the draught fan is arranged, cold air is supplied to the high position in summer, hot air is supplied to the floor in winter, cost is reduced, and comfort is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of ventilation and air conditioning, specifically relating to air conditioners with top and bottom air supply. Background Technology

[0002] Existing windless air conditioners deliver cool air in the summer by directing airflow upwards from the upper vents to avoid blowing cold air directly onto people, thus eliminating the feeling of cold air. In winter, they deliver warm air by directing airflow downwards from the lower vents to the floor, allowing the warm air to reach people's legs for a comfortable feeling. However, to achieve bidirectional airflow, the air conditioner has a very complex fan structure, resulting in high costs. Summary of the Invention

[0003] The purpose of this utility model is to provide an air conditioner with a very simple air supply structure, low cost, and the ability to supply air both vertically and horizontally. In summer, it supplies air to the top of the room, and in winter, it supplies air to the floor. By using different air outlet heights, it can improve human comfort.

[0004] The solution of this utility model is: a top-and-bottom air conditioning unit, comprising a fan module, an upper fan module cavity, a lower fan module cavity, a heat exchanger cavity, an upper air outlet, a lower air outlet, a heat exchanger, and a housing. The air conditioning unit is characterized by being a cabinet or column type. The housing encloses the upper fan module cavity, the lower fan module cavity, and the heat exchanger cavity. The upper fan module cavity and the upper air outlet are mounted on the upper part of the housing, the lower fan module cavity and the lower air outlet are mounted on the lower part of the housing, and the heat exchanger cavity is mounted in the middle of the housing, located between the upper fan module cavity and the upper air outlet, and the lower fan module cavity and the lower air outlet. The heat exchanger is installed within the heat exchanger cavity, and the fan module is a plug-in type. The mobile type is installed in the upper or lower fan module cavity. The upper air outlet is connected to the upper fan module cavity, and the lower air outlet is connected to the lower fan module cavity. The fan module includes a fan and a housing. The fan is installed in the housing and has a fan outlet and an air inlet. It also has a slot or connector for fixed connection with the upper or lower fan module cavity. The fan outlet and air inlet are connected to the heat exchanger cavity and the upper and lower air outlets. The upper and lower fan module cavities are equipped with connection sockets for the fan power cord and control cord, and have an inlet cover for assembling and disassembling the fan module. The fan is a centrifugal fan or an axial fan.

[0005] When supplying cool air in summer, the fan module is installed in the lower fan module cavity. The fan intake is connected to the lower air outlet, and the fan outlet is connected to the heat exchanger cavity. Indoor air is drawn into the heat exchanger cavity by the fan, cooled and dehumidified by the heat exchanger, and then sent to the upper fan module cavity. Finally, it is sent to the upper air outlet to the upper part of the room. The cool air adheres to the ceiling and blows to the distance of the room, falling slowly on people from a high place without the feeling of being blown by a cold wind.

[0006] When supplying hot air in winter, the fan module is moved from the lower fan module cavity and installed in the upper fan module cavity. The fan intake is connected to the upper air outlet, and the fan outlet is connected to the heat exchanger cavity. Indoor air is drawn into the heat exchanger cavity by the fan, heated by the heat exchanger, and then sent to the lower fan module cavity. Finally, the hot air is delivered to the floor of the room through the lower air outlet, and the hot air blows on people's legs, providing a good experience.

[0007] Therefore, by installing a regular fan, cool air is delivered to higher places in summer and warm air is delivered to the floor in winter, reducing costs and ensuring comfort. Attached Figure Description

[0008] Figure 1 It is a top and bottom air supply air conditioner. Figure 1

[0009] Figure 2 It is a top and bottom air supply air conditioner. Figure 2

[0010] Figure 3 It is a top and bottom air supply air conditioner. Figure 3

[0011] Figure 4 It is a top and bottom air supply air conditioner. Figure 4

[0012] Figure 5 It is a top and bottom air supply air conditioner. Figure 5

[0013] Figure 6 It is a top and bottom air supply air conditioner. Figure 6

[0014] Figure 7 It is a top and bottom air supply air conditioner. Figure 7

[0015] Figure 8 It is a top and bottom air supply air conditioner. Figure 8

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. Upper fan module cavity; 2. Heat exchanger cavity; 3. Heat exchanger; 4. Fan module; 5. Lower fan module cavity; 6. 13. 17. 26. Fan; 7. Lower air outlet; 8. Outer shell; 9. Upper air outlet; 10. Heat exchanger cavity upper air outlet; 11. Heat exchanger cavity lower air outlet; 12. 25. Upper air cavity; 14. Axial flow fan duct; 15. Rotating shaft; 16. 28. 31. Sealing plate; 18. Air supply outlet; 19. Secondary return air outlet; 20. Secondary return air cavity; 21. Secondary return air cavity outlet; 22. Fresh air duct; 23. 24. Air valve; 27. Lower air cavity; 29. ​​Cold air return air outlet; 30. Hot air return air outlet. Detailed Implementation

[0018] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0019] Figure 1 , 2 The above-and-below-the-floor air conditioner includes a fan module 4, an upper fan module cavity 1, a lower fan module cavity 5, a heat exchanger cavity 2, an upper air outlet 9, a lower air outlet 7, a heat exchanger 3, and a casing 8. The air conditioner is characterized by being a cabinet or column type. The casing 8 encloses the upper fan module cavity 1, the lower fan module cavity 5, and the heat exchanger cavity 2. The upper fan module cavity 1 and the upper air outlet 9 are mounted on the upper part of the casing, while the lower fan module cavity 5 and the lower air outlet 7 are mounted on the lower part of the casing. The heat exchanger cavity 2 is mounted in the middle of the casing, located between the upper fan module cavity 1 and the upper air outlet 9, and the lower fan module cavity 5 and the lower air outlet 7. The heat exchanger 3 is installed inside the heat exchanger cavity 2. The fan module 4 is a plug-in movable type, installed in either the upper fan module cavity 1 or the lower fan module cavity 5. The upper air outlet 9 and the upper air outlet 7 are connected to the upper fan module cavity 1 and the lower air outlet 7, respectively. The fan module cavity 1 is connected, and the lower air outlet 7 is connected to the lower fan module cavity 5. The fan module 4 includes a fan 6 and a housing. The fan 6 is installed inside the housing and has a fan outlet and an air inlet. It also has a slot or connector for fixed connection with the upper fan module cavity 1 or the lower fan module cavity 5 to ensure a seal with the heat exchanger cavity 2. The fan outlet and air inlet of the fan 6 are connected to the heat exchanger cavity 2 and to the upper air outlet 9 and the lower air outlet 7. The upper fan module cavity 1 and the lower fan module cavity 5 are equipped with connection sockets for the fan power cord and control cord, and have inlet covers for detaching the fan module 4. The upper air outlet 9 and the lower air outlet 7 can be made into detachable inlet covers. The fan 6 is a centrifugal fan or an axial fan. Air filters are installed at the lower air outlet 7 and the upper air outlet 9. A condensate pan is installed at the bottom of the heat exchanger 3 and discharged outdoors. The upper air vent 9 and the lower air vent 7 are electrically adjustable or manually adjustable. The height of the upper air vent 9 should be more than two meters. This air conditioner can be the indoor unit of a split air conditioner, with the heat exchanger 3 connected to the refrigerant, or it can be the terminal of an air conditioning water system, with the heat exchanger 3 connected to the water-cooled heat transfer medium.

[0020] When supplying cool air in summer, fan module 4 is installed in the lower fan module cavity 5. The air inlet of fan 6 is connected to the lower air outlet 7, and the air outlet of fan 6 is located at the lower air outlet 11 of the heat exchanger cavity, connecting with the heat exchanger cavity 2. Indoor air is drawn in by fan 6 and sent into the heat exchanger cavity 2 through the lower air outlet 7, fan 6, and lower air outlet 11 of the heat exchanger cavity. It is cooled and dehumidified by the heat exchanger 3, and then sent to the upper fan module cavity 1 through the upper air outlet 10 of the heat exchanger cavity. Finally, it is sent to the upper part of the room through the upper air outlet 9. The cool air adheres to the ceiling and blows to the distance of the room, slowly falling on people from a high place without the feeling of being blown by a cold wind.

[0021] When supplying hot air in winter, the fan module 4 is moved from the lower fan module cavity 5 and installed in the upper fan module cavity 1. The power cord and control cord of the fan are connected to the socket. The air intake of the fan 6 is connected to the upper air outlet 9, and the air outlet of the fan 6 is inserted into the upper air outlet 10 of the heat exchanger cavity, connecting with the heat exchanger cavity 2. The indoor air is drawn in by the fan 6 and sent into the heat exchanger cavity 2 through the upper air outlet 9, the fan 6, and the upper air outlet 10 of the heat exchanger cavity. It is heated by the heat exchanger 3, and then sent to the lower fan module cavity 5 through the lower air outlet 11 of the heat exchanger cavity. Finally, it is sent to the floor of the room through the lower air outlet 7. The hot air blows on people's legs, providing a good experience.

[0022] Figure 3 , 4 In the middle, the fan 6 is installed in the lower fan module cavity 5. It is a plug-in movable type, and its air inlet and outlet have slots or connectors for connecting to the lower air outlet 11 of the heat exchanger cavity. When supplying cold air in summer, the air outlet of the fan 6 is locked at the lower air outlet 11 of the heat exchanger cavity, communicating with the heat exchanger cavity 2. The indoor air is drawn in by the fan 6 and sent into the heat exchanger cavity 2 through the lower air outlet 7, the fan 6, and the lower air outlet 11 of the heat exchanger cavity. It is cooled and dehumidified by the heat exchanger 3, and then sent to the upper air cavity 12 through the upper air outlet 10 of the heat exchanger cavity. Finally, it is sent to the upper part of the room through the upper air outlet 9. The cold air adheres to the ceiling and blows to the distance of the room, falling slowly on people from high places without the feeling of being blown by a cold wind. When supplying hot air in winter, remove the fan 6 and clip the air inlet of the fan 6 to the lower air outlet 11 of the heat exchanger cavity, connecting it to the heat exchanger cavity 2. Indoor air is drawn in by the fan 6 and sent into the heat exchanger cavity 2 through the upper air outlet 9, upper air chamber 12, and upper air outlet 10 of the heat exchanger cavity. It is heated by the heat exchanger 3 and then sent to the floor of the room through the lower air outlet 11 of the heat exchanger cavity, the fan 6, the lower fan module cavity 5, and the lower air outlet 7. The hot air blows on people's legs, providing a good experience. In the figure, fan 6 is a centrifugal fan, but an axial fan can also be used. Since the axial fan duct is a straight cylindrical shape, the connection between the air outlets at both ends and the lower air outlet 11 of the heat exchanger cavity can use the same fasteners, making the structure simpler. There is a bracket for supporting and fixing fan 6 in the lower fan module cavity 5, and it has an inlet cover for assembling and disassembling fan 6. There is a device for fixing the air outlet of fan 6 at the lower air outlet 11 of the heat exchanger cavity. Fan 6 can also be placed in the upper air cavity 12.

[0023] Figure 5 In the middle, the fan 13 is an axial flow fan, installed in the lower fan module cavity 5. The rotating shaft 15 is installed on the outer wall of the axial flow fan duct 14, and both ends are fixed to the shell of the lower fan module cavity 5. It can rotate 180° to change the direction of the air outlet. The upper air outlet is connected to the lower air outlet 11 of the heat exchanger cavity, and the lower air outlet is connected to the lower air outlet 7. A sealing plate 16 is installed at the lower air outlet, which divides the lower fan module cavity 5 into two spaces. The upper space is connected to the upper part of the fan 13. The end air outlet is connected to the lower air outlet 11 of the heat exchanger cavity, and the lower space is connected to the lower end air outlet and lower air outlet 7 of the fan 13. The sealing plate 16 is sealed to the outer wall of the shell of the lower fan module cavity 5 and the axial fan duct 14 to prevent air leakage. When the fan 13 needs to be reversed, the sealing plate 16 can be disassembled to achieve the delivery of cold air in summer and hot air in winter. The lower fan module cavity 5 is equipped with the inlet cover of the rotating fan 13. The fan 13 can also be placed in the upper air cavity 12.

[0024] Figure 5 The axial flow fan 13 can be a reversible axial flow fan or a counter-rotating axial flow fan to achieve bidirectional air supply. The axial flow fan 13 is fixed in the lower fan module cavity 5, and the upper air outlet is fixed at the lower air outlet 11 of the heat exchanger cavity, communicating with the heat exchanger cavity 2. The lower air outlet is connected to the lower air outlet 7, eliminating the need for the sealing plate 16. In summer, when supplying cool air, indoor air passes through the lower air outlet 7, fan module cavity 5, axial flow fan 13, lower air outlet 11 of the heat exchanger cavity, heat exchanger cavity 2, heat exchanger 3, upper air outlet 10 of the heat exchanger cavity, upper air cavity 12, and upper air outlet 9, supplying cool air to the upper part of the room. When supplying hot air in winter, the axial flow fan 13 is electrically reversed, directing airflow in the opposite direction. Indoor air passes through the upper air outlet 9, upper air cavity 12, upper air outlet 10 of the heat exchanger cavity, heat exchanger cavity 2, heat exchanger 3, lower air outlet 11 of the heat exchanger cavity, axial flow fan 13, fan module cavity 5, and lower air outlet 7, delivering hot air to the room floor. The axial flow fan 13 can also be placed in the upper air cavity 12. Because the axial flow fan 13 is electrically reversed, the inconvenience of manual reversal is avoided, improving safety.

[0025] Figure 6The air conditioner described is a wall-mounted unit, comprising a fan module 4, a secondary return air cavity 20, a heat exchanger cavity 2, a heat exchanger 3, and a casing 8. The air conditioner is characterized by being wall-mounted, with the casing 8 enclosing the secondary return air cavity 20 and the heat exchanger cavity 2. The secondary return air cavity 20 has a secondary return air inlet 19, a secondary return air outlet 21, and secondary return air inlets and outlets. The secondary return air inlet 19 is located at the front of the secondary return air cavity 20, the secondary return air outlet 21 is located at the upper part of the secondary return air cavity 20, and the secondary return air inlets and outlets are located at the lower part of the secondary return air cavity 20. The secondary return air cavity 20 is mounted on the upper part of the heat exchanger cavity 2. The device 3 is installed inside the heat exchanger cavity 2. The heat exchanger cavity 2 has an upper air outlet 10 and a lower air outlet 11. The secondary return air chamber inlet and outlet are connected to the upper air outlet 10. The fan module 4 is a plug-in movable type, comprising a cross-flow fan 17, a duct, an air inlet, an air outlet 18, and a housing. The cross-flow fan 17 is installed in the duct, with one end being the air inlet and the other end being the air outlet 18. The air inlet is positioned at the secondary return air chamber outlet 21, connecting to the secondary return air chamber 20, or at the lower air outlet 11, connecting to the heat exchanger cavity 2. The fan module 4 is fixedly connected to the outer shell 8 of the heat exchanger cavity 2, ensuring stable connection of the fan module 4 to the upper or lower part of the outer shell 8. The fan module 4 has plugs for the power and control cables of the cross-flow fan 17. Corresponding sockets are located on the upper and lower shells of the heat exchanger cavity 2 to ensure connection to the main power supply and control module. The heat exchanger 3 is not limited to the existing multi-module combination type; it can also be an integral type, installed at an angle or vertically. A condensate pan is installed at the bottom of the heat exchanger 3, which is discharged outdoors. The secondary return air vent 19 is electrically adjustable or manually adjustable.

[0026] When supplying cool air in summer, the secondary return air vent 19 is closed, and the fan module 4 is installed above the secondary return air cavity 20. The air inlet of the fan module 4 is connected to the air outlet 21 of the secondary return air cavity. Under the suction of the cross-flow fan 17, the indoor air enters the heat exchanger cavity 2 from the lower air inlet 11 of the heat exchanger cavity, is cooled and dehumidified by the heat exchanger 3, and then passes through the upper air inlet 10 of the heat exchanger cavity, the secondary return air cavity 20, the air outlet 21 of the secondary return air cavity, the air inlet of the fan module 4, the cross-flow fan 17, and the air outlet 18, and finally delivers the air to the upper part of the room. The cool air adheres to the ceiling and blows to the far part of the room, slowly falling on people from a high place without the feeling of being blown by a cold wind. Alternatively, the secondary return air vent 19 can be opened, and the indoor secondary return air and the cold air treated by the heat exchanger 3 can be mixed in the secondary return air cavity 20. The cold air is reheated, which increases the supply air temperature. Finally, it is sent into the room by the cross-flow fan 17 through the air outlet 18. Because the supply air temperature is increased, people do not feel cold air.

[0027] When hot air is supplied in winter, the fan module 4 is installed below the heat exchanger cavity 2. The air inlet of the fan module 4 is connected to the lower air outlet 11 of the heat exchanger cavity. Under the suction of the cross-flow fan 17, indoor air enters the heat exchanger cavity 2 from the secondary return air inlet 19, the secondary return air cavity outlet 21, the secondary return air cavity inlet and outlet, and the upper air outlet 10 of the heat exchanger cavity. It is heated by the heat exchanger 3, and then passes through the lower air outlet 11 of the heat exchanger cavity, the air inlet of the fan module 4, the cross-flow fan 17, and the air outlet 18, and finally delivers the hot air to the floor of the room. The hot air blows on people's legs, providing a good experience.

[0028] Figure 7 In the middle, it is in Figure 5 The air conditioner is equipped with a fresh air duct 22, which enters the lower fan module cavity 5 from the bottom of the casing. One path enters the lower fan module cavity 5 through the air valve 24, and the other path enters the heat exchanger cavity 2 through the air valve 23. In summer, when supplying cold air, the air valve 24 is opened and the air valve 23 is closed. Under the suction of the axial flow fan 13, the outdoor fresh air enters the lower fan module cavity 5 through the air valve 24, mixes with the indoor air entering from the lower air outlet 7, and enters the heat exchanger cavity 2 through the axial flow fan 13 and the lower air outlet 11 of the heat exchanger cavity. It is cooled and dehumidified by the heat exchanger 3, and then sent to the upper air cavity 12 through the upper air outlet 10 of the heat exchanger cavity. Finally, it is sent to the upper part of the room through the upper air outlet 9. The cold air adheres to the ceiling and blows to the distance of the room, falling slowly on people from high places without the feeling of being blown by a cold wind. When supplying hot air in winter, open air valve 23 and close air valve 24. Under the suction of axial fan 13, fresh outdoor air enters heat exchanger cavity 2 through air valve 23. Indoor air enters heat exchanger cavity 2 through upper air inlet 9, upper air chamber 12, and upper air inlet 10 of heat exchanger cavity. After mixing, the two are heated by heat exchanger 3 and then delivered to the room floor through lower air inlet 11 of heat exchanger cavity, axial fan 13, and lower air inlet 7. The hot air blows on people's legs, providing a comfortable experience. Due to the increase in fresh air, indoor air quality is improved. Air valves 23 and 24 are electrically adjustable or manually adjustable.

[0029] Figure 8The air conditioner with top and bottom air supply includes a cooler 26, a heater 6, an upper air chamber 25, a lower air chamber 27, an upper fan module cavity 1, a lower fan module cavity 5, a heat exchanger cavity 2, a heat exchanger 3, an upper air outlet 9, a lower air outlet 7, a cold air return outlet 29, a hot air return outlet 30, and an outer casing 8. Its characteristic is that the air conditioner is a cabinet or column type, and the outer casing 8 encloses the upper air chamber 25, the lower air chamber 27, the upper fan module cavity 1, the lower fan module cavity 5, and the heat exchanger cavity 2. The heat exchanger cavity 2, upper air cavity 25, and upper air outlet 9 are installed on the upper part of the shell. The upper fan module cavity 1 is installed on the lower part of the upper air cavity 25, and the two are separated by a sealing plate 31. The heat exchanger cavity 2 is installed on the lower part of the upper fan module cavity 1, the lower air cavity 27 is installed on the lower part of the heat exchanger cavity 2, and the lower fan module cavity 5 is installed on the lower part of the lower air cavity 27 and located at the bottom of the shell 8. The lower fan module cavity 5 and the lower air cavity 27 are separated by a sealing plate 28. The upper air outlet 9 is mounted on the shell of the upper air cavity 22. The air cooler 26 is mounted in the upper air module cavity 1, with its outlet connected to the upper air cavity 25 and its intake connected to the upper air module cavity 1. The hot air return outlet 30 is mounted on the shell of the upper air module cavity 1. The upper air outlet 10 of the heat exchanger cavity is located at the upper part of the heat exchanger cavity 2 and communicates with the upper air module cavity 1. The heat exchanger 3 is mounted inside the heat exchanger cavity 2, and the lower air outlet 11 of the heat exchanger cavity is located at the lower part of the heat exchanger cavity 2 and communicates with the upper air module cavity 1. The lower air chamber 27 is connected, the cold air return air inlet 29 is on the shell of the lower air chamber 27, the hot air fan 6 is installed in the lower air fan module cavity 5, its air outlet is connected to the lower air fan module cavity 5, the air inlet is connected to the lower air chamber 27, the lower air outlet 7 is installed on the shell of the lower air fan module cavity 5, the upper air outlet 9, the lower air outlet 7, the cold air return air inlet 29, and the hot air return air inlet 30 are electrically adjustable air outlets or manually adjustable air outlets, and the cold air fan 26 and the hot air fan 6 are centrifugal fans and axial flow fans respectively.

[0030] When supplying cool air in summer, the air cooler 26 is turned on, the hot air fan 6 is turned off, the upper air vent 9 and the cold air return vent 29 are opened, the lower air vent 7 is opened or closed, and the hot air return vent 30 is closed. The indoor return air passes through the cold air return vent 29, the lower air cavity 27, and the lower air vent 11 of the heat exchanger cavity. In the heat exchanger cavity 2, it is cooled and dehumidified by the heat exchanger 3. Then, it enters the upper fan module cavity 1 through the upper air vent 10 of the heat exchanger cavity and is drawn into the upper air cavity 25 by the air cooler 26. Finally, it sends cool air to the upper part of the room through the upper air vent 9. The cool air adheres to the ceiling and blows far away from the room, slowly falling on people from a high place without the feeling of being blown by a cold air. Alternatively, the hot air return vent 30 can be opened, and the indoor secondary return air and the cold air treated by the heat exchanger 3 can be mixed in the upper fan module cavity 1 to reheat the cold air and increase the supply air temperature. Finally, the cold air is sent into the room by the air cooler 26 through the upper air cavity 25 and the upper air vent 9. Because the supply air temperature is increased, the human body does not feel the cold air.

[0031] When hot air is supplied in winter, the hot air blower 6 is turned on, the cold air blower 26 is turned off, the lower air vent 7 and the hot air return vent 30 are opened, the cold air return vent 29 is closed, and the upper air vent 9 is opened or closed. The indoor return air passes through the hot air return vent 30, the upper air blower module cavity 1, and the upper air vent 10 of the heat exchanger cavity. It is heated by the heat exchanger 3 in the heat exchanger cavity 2, and then enters the lower air cavity 27 through the lower air vent 11 of the heat exchanger cavity. It is then drawn into the lower air blower module cavity 5 by the hot air blower 6, and finally delivered to the floor of the room through the lower air vent 7. The hot air blows on people's legs, providing a good experience.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A top-and-bottom air conditioning unit, comprising a fan module, an upper fan module cavity, a lower fan module cavity, a heat exchanger cavity, an upper air outlet, a lower air outlet, a heat exchanger, and a casing, characterized in that... The air conditioner is a cabinet type or a column type, and the shell surrounds an upper fan module cavity, a lower fan module cavity, and a heat exchanger cavity. The upper fan module cavity and the upper air outlet are arranged at the upper part of the shell, the lower fan module cavity and the lower air outlet are arranged at the lower part of the shell, and the heat exchanger cavity is arranged at the middle part of the shell between the upper fan module cavity, the upper air outlet and the lower fan module cavity, the lower air outlet. The heat exchanger is arranged in the heat exchanger cavity. The fan module is a plug-in movable type and is arranged in the upper fan module cavity or the lower fan module cavity. The upper air outlet is communicated with the upper fan module cavity, and the lower air outlet is communicated with the lower fan module cavity. The fan module comprises a fan and a shell. The fan is arranged in the shell and has a fan outlet and a fan inlet. The fan module has a plug-in groove or a connecting piece fixedly connected with the upper fan module cavity or the lower fan module cavity. The fan outlet and the fan inlet are communicated with the heat exchanger cavity and the upper air outlet and the lower air outlet. A connecting socket of the fan power line and the control line is arranged on the upper fan module cavity and the lower fan module cavity, and an inlet cover plate for disassembling the fan module is arranged. The fan is a centrifugal fan or an axial flow fan.

2. The up and down air supply and air conditioning unit comprising a fan, an upper air chamber, a lower air chamber module cavity, a heat exchanger cavity, an upper air outlet, a lower air outlet, a heat exchanger, a housing, characterized in that, The air conditioner is a cabinet type or a column type, and the shell surrounds an upper fan cavity, a lower fan module cavity, and a heat exchanger cavity. The upper fan cavity and the upper air outlet are arranged at the upper part of the shell, the lower fan module cavity and the lower air outlet are arranged at the lower part of the shell, and the heat exchanger cavity is arranged at the middle part of the shell between the upper fan cavity, the upper air outlet and the lower fan module cavity, the lower air outlet. The heat exchanger is arranged in the heat exchanger cavity. The fan is a plug-in movable type and is arranged in the lower fan module cavity. The fan outlet and the fan inlet have a plug-in groove or a connecting piece connected with the heat exchanger cavity and the lower air outlet. The fan outlet and the fan inlet are communicated with the heat exchanger cavity and the upper air outlet and the lower air outlet. The upper air outlet is communicated with the upper fan cavity, and the lower air outlet is communicated with the lower fan module cavity. The lower fan module cavity has an inlet cover plate for disassembling the fan. The fan is a centrifugal fan or an axial flow fan, or the fan is arranged in the upper fan cavity.

3. The up and down air conditioner comprising axial flow fan, upper air chamber, lower air chamber module, heat exchanger chamber, upper air outlet, lower air outlet, heat exchanger, shell, characterized in that, The air conditioner is cabinet or column type, the shell surrounds the upper air cavity, the lower air fan module cavity, the heat exchanger cavity, the upper air cavity and the upper air outlet are arranged on the upper part of the shell, the lower air fan module cavity and the lower air outlet are arranged on the lower part of the shell, the heat exchanger cavity is arranged in the middle part of the shell between the upper air cavity and the upper air outlet and the lower air fan module cavity and the lower air outlet, the heat exchanger is arranged in the heat exchanger cavity, the axial flow fan is arranged in the lower air fan module cavity, a rotating shaft is arranged on the outer wall of the air duct of the axial flow fan, the two ends of the rotating shaft are fixed on the shell of the lower air fan module cavity, when the rotating shaft rotates 180 degrees, the air outlet is turned, the upper end air outlet is communicated with the lower air outlet of the heat exchanger cavity, the lower end air outlet is communicated with the lower air outlet, a sealing plate is arranged on the lower end air outlet, the lower air fan module cavity is divided into two spaces, the upper space is communicated with the upper end air outlet of the axial flow fan and the lower air outlet of the heat exchanger cavity, the lower space is communicated with the lower end air outlet of the axial flow fan and the lower air outlet, the sealing plate is tightly sealed with the shell of the lower air fan module cavity and the outer wall of the air duct of the axial flow fan, when the axial flow fan needs to be reversed, the sealing plate is disassembled, the air outlet and the air inlet of the axial flow fan are communicated with the heat exchanger cavity, and the air outlet and the air inlet are communicated with the upper air outlet and the lower air outlet, the upper air outlet is communicated with the upper air cavity, the lower air outlet is communicated with the lower air fan module cavity, the lower air fan module cavity is provided with an inlet cover plate of the rotating axial flow fan, or the axial flow fan is arranged in the upper air cavity.

4. The up and down air conditioner comprising axial flow fan, upper air chamber, lower air chamber module, heat exchanger chamber, upper air outlet, lower air outlet, heat exchanger, shell, characterized in that, The air conditioner is cabinet or column type, the shell surrounds the upper air cavity, the lower air fan module cavity, the heat exchanger cavity, the upper air cavity and the upper air outlet are arranged on the upper part of the shell, the lower air fan module cavity and the lower air outlet are arranged on the lower part of the shell, the heat exchanger cavity is arranged in the middle part of the shell between the upper air cavity and the upper air outlet and the lower air fan module cavity and the lower air outlet, the heat exchanger is arranged in the heat exchanger cavity, the upper air outlet is arranged on the shell of the upper air cavity, the lower air outlet of the heat exchanger cavity is located in the upper part of the heat exchanger cavity and is communicated with the upper air fan module cavity, the lower air outlet of the heat exchanger cavity is located in the lower part of the heat exchanger cavity, the axial flow fan is fixed in the lower air fan module cavity, the upper end air outlet is fixed at the lower air outlet of the heat exchanger cavity and is communicated with the heat exchanger cavity, the lower end air outlet is located in the lower air fan module cavity and is communicated with the lower air outlet, the axial flow fan adopts a reversible axial flow fan or a counter-rotating axial flow fan.

5. A top and bottom air supply and return air conditioner comprising a fan module, a secondary return air chamber, a heat exchanger chamber, a heat exchanger, and a housing, characterized in that, The air conditioner is wall-mounted, and the shell surrounds a secondary return air cavity, a heat exchanger cavity, the secondary return air cavity is provided with a secondary return air port, a secondary return air cavity air outlet, and a secondary return air cavity inlet and outlet, the secondary return air port is arranged at the front of the secondary return air cavity, the secondary return air cavity air outlet is arranged at the upper portion of the secondary return air cavity, the secondary return air cavity inlet and outlet is arranged at the lower portion of the secondary return air cavity, the secondary return air cavity is arranged at the upper portion of the heat exchanger cavity, the heat exchanger is arranged in the heat exchanger cavity, the upper portion of the heat exchanger cavity is provided with an upper heat exchanger cavity air port, and the lower portion of the heat exchanger cavity is provided with a lower heat exchanger cavity air port, the secondary return air cavity inlet and outlet is communicated with the upper heat exchanger cavity air port, and the fan module is plug-in and movable, which comprises a cross-flow fan, an air duct, an air inlet, an air outlet, and a shell, the cross-flow fan is arranged in the air duct, one end of the air duct is the air inlet, and the other end is the air outlet, the air inlet is clamped at the secondary return air cavity air outlet, is communicated with the secondary return air cavity, or the air inlet is clamped at the lower heat exchanger cavity air port, is communicated with the heat exchanger cavity, the fan module is fixedly connected with the heat exchanger cavity shell, the fan module is stably connected to the upper portion or the lower portion of the shell, the fan module is provided with a plug of the power line and the control line of the cross-flow fan, and the corresponding position of the upper portion and the lower portion of the heat exchanger cavity shell is matched with a socket.

6. The up and down air supply air conditioner comprises an axial flow fan, an upper air chamber, a lower air chamber module cavity, a heat exchanger cavity, an upper air outlet, a lower air outlet, a heat exchanger, a fresh air pipe and a shell, characterized in that, The air conditioner is cabinet or column type, and the shell surrounds an upper air cavity, a lower fan module cavity and a heat exchanger cavity, the upper air cavity and the upper air port are arranged at the upper portion of the shell, the lower fan module cavity and the lower air port are arranged at the lower portion of the shell, and the heat exchanger cavity is arranged at the middle portion of the shell and located between the upper air cavity and the upper air port and the lower fan module cavity and the lower air port, the heat exchanger is arranged in the heat exchanger cavity, and the axial flow fan is arranged in the lower fan module cavity, a rotating shaft is arranged on the outer wall of the axial flow fan air duct, both ends of the rotating shaft are fixed to the shell of the lower fan module cavity, when the rotating shaft is rotated by 180°, the air port is turned, the upper end air port is communicated with the lower heat exchanger cavity air port, the lower end air port is communicated with the lower air port, a sealing plate is arranged on the lower end air port, the lower fan module cavity is divided into two spaces, the upper space is communicated with the upper end air port of the axial flow fan and the lower heat exchanger cavity air port, the lower space is communicated with the lower end air port of the axial flow fan and the lower air port, the sealing plate is tightly sealed with the shell of the lower fan module cavity and the outer wall of the axial flow fan air duct, when the axial flow fan needs to be reversed, the sealing plate is disassembled, the axial flow fan air outlet and air inlet are communicated with the heat exchanger cavity, and are communicated with the upper air port and the lower air port, the upper air port is communicated with the upper air cavity, the lower air port is communicated with the lower fan module cavity, the lower fan module cavity is provided with an inlet cover plate of the rotating axial flow fan, fresh air pipes are connected to the lower portion of the lower fan module cavity and are divided into two paths, one path enters the lower fan module cavity through a wind valve, and the other path enters the heat exchanger cavity through a wind valve, or the axial flow fan is arranged in the upper air cavity.

7. The up and down air supply air conditioner comprises a cold air blower, a hot air blower, an upper air chamber, a lower air chamber, an upper air blower module chamber, a lower air blower module chamber, a heat exchanger chamber, a heat exchanger, an upper air outlet, a lower air outlet, a cold air return air outlet, a hot air return air outlet, and a shell, characterized in that, The air conditioner is cabinet type or stand type, and the shell surrounds an upper air cavity, a lower air cavity, an upper fan module cavity, a lower fan module cavity and a heat exchanger cavity. The upper air cavity and the upper air outlet are arranged on the upper part of the shell, the upper fan module cavity is arranged on the lower part of the upper air cavity, and the two are separated by a sealing plate. The heat exchanger cavity is arranged on the lower part of the upper fan module cavity, the lower air cavity is arranged on the lower part of the heat exchanger cavity, the lower fan module cavity is arranged on the lower part of the lower air cavity and located on the bottom of the shell, the lower fan module cavity and the lower air cavity are separated by a sealing plate, the upper air outlet is arranged on the upper air cavity shell, the cold air fan is arranged in the upper fan module cavity, the air outlet thereof is connected with the upper air cavity, the air inlet is communicated with the upper fan module cavity, the hot air return air inlet is arranged on the upper fan module cavity shell, the upper air inlet of the heat exchanger cavity is located on the upper part of the heat exchanger cavity and communicated with the upper fan module cavity, the heat exchanger is arranged in the heat exchanger cavity, the lower air inlet of the heat exchanger cavity is located on the lower part of the heat exchanger cavity and communicated with the lower air cavity, the cold air return air inlet is on the lower air cavity shell, the hot air fan is arranged in the lower fan module cavity, the air outlet thereof is connected with the lower fan module cavity, the air inlet is communicated with the lower air cavity, and the lower air outlet is arranged on the lower fan module cavity shell. The cold air fan and the hot air fan adopt centrifugal fans and axial flow fans.

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