Multi-connected air conditioner all-in-one machine

Abstract

This application discloses a multi-split air conditioning unit, belonging to the field of integrated air conditioning, used for air conditioning. It includes an outdoor unit and an indoor unit. Several outdoor unit connectors are arranged circumferentially around the outdoor and indoor units. Corresponding outdoor unit connectors and outdoor unit air outlets are connected by indoor unit hangers and fasteners. The indoor unit hangers are integrally connected to the indoor unit casing. The outdoor unit air outlet is located at the top of the outdoor unit and communicates with an external ventilation duct. The outdoor unit air inlet is located circumferentially around the outdoor unit to allow air from the surrounding environment to flow in. The indoor unit has an indoor unit air inlet at its bottom, and indoor unit air outlet guide vanes are arranged around the air inlet. This application can be used with ventilation ducts in underground spaces, including subways, facilitating the installation of indoor and outdoor units of air conditioning equipment in subways and improving the convenience and efficiency of installation.

Description

Technical Field

[0001] This application belongs to the field of integrated air conditioning, and more specifically, it relates to a multi-split integrated air conditioning unit. Background Technology

[0002] Subway platforms, lacking or having poor natural ventilation, require separate ventilation systems to ensure passenger comfort and a hygienic environment. Referring to Chinese Patent Publication No. CN114183867A, a ventilation system for underground subway platforms is disclosed, specifically outlining the following technical solution: Under-platform air ducts and horizontal ducts are positioned between the platform's base slab and floor. Fresh air enters the space above the platform floor through the under-platform air ducts, the horizontal ducts, and the vertical ducts, achieving a downward air supply method. This embodiment of the underground subway platform ventilation system, utilizing a downward air supply method, primarily occupies the space between the platform's base slab and floor, eliminating the need for space within the platform ceiling and allowing for higher ceiling installation levels.

[0003] In other words, in the current technology, ventilation for underground spaces such as subway platforms is mostly achieved by installing air supply and exhaust ducts in the ceiling. This method does not require much energy consumption when natural ventilation is achieved, but when air conditioning is used for ventilation, the energy consumption gradually increases depending on the size of the space.

[0004] Traditional subway platform ventilation and air conditioning systems often employ a "water-cooled chiller + cooling tower + combined air handling unit" system. For example, Chinese patent publication number CN202141143U discloses a water-cooled direct evaporation combined split air conditioner and air conditioning system for urban rail transit, specifically disclosing the following technical solution: The water-cooled direct evaporation combined split air conditioner for urban rail transit includes a water-cooled compressor-condenser unit and a direct evaporation combined air handling unit, connected by refrigerant piping. This utility model's water-cooled direct evaporation combined split air conditioner and air conditioning system for urban rail transit enables ventilation and air conditioning equipment to meet the requirements of air conditioning engineering and daily operation and maintenance, reducing system energy consumption by approximately 20%. Furthermore, due to the use of a direct refrigerant evaporator, the problem of heat exchanger freezing in northern winters can be avoided.

[0005] However, the applicant argues that the aforementioned air conditioning equipment failed to effectively coordinate with the exhaust system installed above the subway platform space. Furthermore, the air conditioning equipment used in the subway platform space needs to consider the installation of both the outdoor and indoor units, and the installation difficulties vary, as do the pipe lengths between the indoor and outdoor units. Summary of the Invention

[0006] The purpose of this application is to provide a multi-split air conditioning unit that can be used with ventilation ducts in underground spaces, including subways, to facilitate the installation of indoor and outdoor units of air conditioning equipment in subways, thereby improving the ease of installation and construction efficiency of air conditioning equipment in subways.

[0007] To achieve the above objectives, this application employs the following technical solution:

[0008] The multi-split air conditioning unit described in this application includes an outdoor unit and an indoor unit, with the outdoor unit located above the indoor unit. The bottom surface of the outdoor unit is attached to the top surface of the indoor unit. Several outdoor unit connectors are arranged around the circumference of the outdoor unit, and several corresponding indoor unit connectors are arranged around the circumference of the indoor unit. The corresponding outdoor unit connectors and the outdoor unit air outlet are connected by an indoor unit hanger and fasteners. The indoor unit hanger is integrally connected to the indoor unit housing. The outdoor unit air outlet is located at the top of the outdoor unit and communicates with an external ventilation duct. The outdoor unit air inlet is located around the circumference of the outdoor unit to allow air from the surrounding environment to flow in. An indoor unit air inlet is located at the bottom of the indoor unit, and indoor unit air outlet guide vanes are arranged around the air inlet.

[0009] As one of the preferred technical solutions of this application, the outdoor unit of the air conditioner also includes an outdoor unit condenser. The outdoor unit condenser is connected to the outdoor unit compressor through a high-pressure steam pipeline. The outdoor unit condenser is also connected to a high-pressure gauge, a capillary tube, and a low-pressure liquid pipeline. The outdoor unit condenser is arranged between the outdoor unit air inlet and the outdoor unit compressor. An axial flow fan is provided at the outdoor unit air outlet. The axial flow fan draws external air from the outdoor unit air inlet, passes it through the outdoor unit condenser, and then sends it to the outdoor unit air outlet.

[0010] As one of the preferred technical solutions of this application, the indoor unit of the air conditioner further includes an indoor unit evaporator connected to a high-pressure steam pipeline, the indoor unit evaporator being connected to a low-pressure liquid pipeline, and a vortex fan being installed inside the indoor unit. The vortex fan draws in external air from the indoor unit air inlet and discharges it from the indoor unit air outlet guide vane. A drive motor and a linkage structure linked to the drive motor are installed at the indoor unit air outlet guide vane. The indoor unit evaporator is arranged around the vortex fan and located between the indoor unit air inlet and the indoor unit air outlet guide vane.

[0011] As one of the preferred technical solutions of this application, an indoor unit base is integrally provided at the bottom of the indoor unit housing. The indoor unit base extends circumferentially away from the indoor unit housing and forms a platform structure. An indoor unit hanger is integrally provided at the top of the indoor unit base. The indoor unit hanger extends through the interior of the indoor unit connector and the outdoor unit connector.

[0012] As one of the preferred technical solutions of this application, the indoor unit connector and the outdoor unit connector are L-shaped or U-shaped structural plates. Notches for placing the indoor unit hanger are machined on the indoor unit connector and the outdoor unit connector. Connecting fasteners are provided at the connection positions of the indoor unit connector and the outdoor unit connector and the indoor unit hanger. The top of the indoor unit hanger extends to the top of the outdoor unit casing and is connected to the building at the location.

[0013] As one of the preferred technical solutions of this application, shock-absorbing pads are provided at the corners of the bottom of the outdoor unit housing and the top of the indoor unit housing, and filters are provided at the air inlets of the outdoor unit and / or the indoor unit.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] This application can be used with ventilation ducts in underground spaces such as subways. By integrating the outdoor and indoor air conditioning units, it avoids the problem of difficult installation of the outdoor air conditioning unit. Furthermore, the integrated outdoor and indoor air conditioning units can reduce the length of the ducts and the difficulty of installation. Attached Figure Description

[0016] Figure 1 This is the main view of this application.

[0017] Figure 2 This is the three-dimensional representation of the present application. Figure 1 .

[0018] Figure 3 This is a top view of this application.

[0019] Figure 4 This is the three-dimensional representation of the present application. Figure 2 .

[0020] Figure 5 The three-dimensional structure of the outdoor unit of the air conditioner in this application. Figure 1 .

[0021] Figure 6 The three-dimensional structure of the outdoor unit of the air conditioner in this application. Figure 2 .

[0022] Figure 7 This is a top view of the outdoor unit of the air conditioner in this application.

[0023] Figure 8 yes Figure 7 A cross-sectional view at the position and direction shown in AA.

[0024] Figure 9 The three-dimensional structure of the indoor unit of the air conditioner in this application. Figure 1 .

[0025] Figure 10 The three-dimensional structure of the indoor unit of the air conditioner in this application. Figure 2 .

[0026] Figure 11 This is the front view of the indoor unit of the air conditioner in this application.

[0027] Figure 12 yes Figure 11 A cross-sectional view at the position and direction shown in BB.

[0028] In the diagram: 1. Outdoor unit; 2. Indoor unit; 11. Outdoor unit connector; 12. Outdoor unit air outlet; 13. Outdoor unit casing; 14. Outdoor unit air inlet; 15. Outdoor unit condenser; 16. Outdoor unit compressor; 21. Indoor unit connector; 22. Indoor unit hanger; 23. Indoor unit air outlet guide vane; 24. Indoor unit base; 25. Indoor unit casing; 26. Indoor unit air inlet; 27. Indoor unit evaporator; 28. Indoor unit fan. Detailed Implementation

[0029] The technical solutions described in this application will be further described below with reference to the accompanying drawings and embodiments.

[0030] Example 1

[0031] See Figures 1 to 12 The multi-split air conditioning unit shown includes an outdoor unit 1 and an indoor unit 2 that are detachably connected as one unit. The outdoor unit 1 is located above the indoor unit 2. The outdoor unit outlet 12 of the indoor unit 2 is connected to the ventilation duct in the space. Outdoor unit connectors 11 are provided around the outdoor unit 1 and the indoor unit 2. An indoor unit hanger 22 is also integrally installed on the outdoor unit 1 at a position corresponding to the outdoor unit connector 11. The indoor unit hanger 22 is connected to the outdoor unit connector 11 and its top end is connected to the building. The outdoor unit outlet 12 is located at the top of the outdoor unit 1, and several outdoor unit inlets 14 are also provided around the outdoor unit 1. The bottom of the indoor unit 2 is provided with an indoor unit inlet 26 and an indoor unit air outlet guide vane 23, with the indoor unit air outlet guide vane 23 located around the indoor unit air inlet 26. The outdoor unit 1 of the air conditioner is also equipped with an outdoor unit condenser 15. The outdoor unit condenser 15 is connected to the outdoor unit compressor 16 through a high-pressure steam pipeline. The outdoor unit condenser 15 is also connected to a high-pressure gauge, a capillary tube and a low-pressure liquid pipeline. The outdoor unit condenser 15 is located on the air flow path between the outdoor unit air inlet 14 and the outdoor unit air outlet 12. An axial flow fan is also installed at the outdoor unit air outlet 12 of the air conditioner outdoor unit 1. The axial flow fan can introduce external air into the air conditioner outdoor unit 1 through the outdoor unit air inlet 14, and send the air through the outdoor unit condenser 15 and out through the outdoor unit air outlet 12.

[0032] Example 2

[0033] See also Figures 1 to 12The diagram shows a multi-split air conditioning unit. The indoor unit 2 contains an evaporator 27 connected to a high-pressure steam pipeline and a low-pressure liquid pipeline. An indoor unit fan 28 is located at the air inlet 26. The fan draws air from the outside environment into the indoor unit 2 and exhausts it through the air outlet guide vanes 23. The air outlet guide vanes 23 can adjust their opening angle via a linkage structure and a drive motor. The evaporator 27 is positioned along the airflow path formed after the fan 28 is activated, facilitating heat exchange. Specifically, the evaporator 27 surrounds the fan 28 and is located between the air inlet 26 and the air outlet guide vanes 23. The bottom of the indoor unit housing 25 is integrally provided with an indoor unit base 24 with outward edges. The top of the indoor unit base 24 is integrally provided with an indoor unit hanger 22. The indoor unit hanger 22 extends out from the inside of the indoor unit connector 21 and the outdoor unit connector 11. The indoor unit connector 21 and the outdoor unit connector 11 are L-shaped or U-shaped structural plates. The indoor unit connector 21 and the outdoor unit connector 11 are machined with notches for the indoor unit hanger 22 to pass through and for the placement of fixing parts. The indoor unit connector 21 and the outdoor unit connector 11 are respectively connected to the connecting fasteners of the indoor unit hanger 22 through the notches. The top of the indoor unit hanger 22 is fixedly connected to the building at its location. Shock-absorbing pads are provided at the bottom of the outdoor unit housing 13 and the top corners of the indoor unit housing 25. Filter screens are provided at the outdoor unit air inlet 14 and the indoor unit air inlet 26 to filter dust in the air.

[0034] Based on the above embodiments, the following paragraphs will continue to describe in detail the technical features involved and the functions and roles of these technical features in this technical solution, so as to help those skilled in the art to fully understand the technical solution and reproduce it.

[0035] In this application, the outdoor unit 1 of the air conditioner includes an outdoor unit housing 13. Various pipes, control circuit boards, an outdoor unit condenser 15, and an outdoor unit compressor 16 are arranged inside the outdoor unit housing 13. Several outdoor unit air inlets 14 are opened around the outdoor unit housing 13, and an outdoor unit air outlet 12 is arranged on the top of the outdoor unit housing 13. A protective net is provided at the position of the outdoor unit air outlet 12. The outdoor unit air outlet 12 faces the ventilation duct of the building so as to realize the exhaust air through the ventilation duct and reduce the impact on the building space.

[0036] In this application, the outdoor unit housing 13 is further provided with an axial flow fan inside the outdoor unit air outlet 12. The axial flow fan can discharge the air supplied from the outdoor unit air inlet 14 through the outdoor unit air outlet 12. An outdoor unit condenser 15 is provided along the path of the air flowing from the outdoor unit air inlet 14 to the outdoor unit air outlet 12. The outdoor unit condenser 15 is distributed around the axial flow fan, the outdoor unit compressor 16, etc.

[0037] In this application, the outdoor unit housing 13 has a plurality of outdoor unit connectors 11 distributed circumferentially. The outdoor unit connectors 11 are L-shaped plates or U-shaped plates, and notches are machined on them for placing and connecting the indoor unit hanger 22.

[0038] In this application, the outdoor unit 1 of the air conditioner shall have all the structures and functions of the outdoor unit of the air conditioner in the prior art, so as to cooperate with the indoor unit 2 of the air conditioner to realize the heat exchange of the air conditioner.

[0039] In this application, the indoor unit 2 of the air conditioner includes an indoor unit housing 25. The indoor unit housing 25 is provided with an indoor unit connector 21 corresponding to the outdoor unit connector 11 in the circumferential direction. The indoor unit connector 21 is an L-shaped plate or a U-shaped plate. The indoor unit connector 21 has a notch for placing the indoor unit hanging rod 22.

[0040] In this application, the bottom of the indoor unit housing 25 is also integrally provided with an indoor unit base 24. The indoor unit base 24 extends to both sides of the indoor unit housing 25 to form a platform structure, and an indoor unit hanger 22 is integrally provided on it. The indoor unit hanger 22 passes through the inside of the indoor unit connector 21.

[0041] In this application, the indoor unit housing 25 is provided with an indoor unit air inlet 26 with a protective mesh at the bottom, and an indoor unit air outlet guide vane 23 is provided at the position of the indoor unit base 24 around the indoor unit air inlet 26. The indoor unit air outlet guide vane 23 includes blades that move relative to the indoor unit base 24 and a connecting rod that is linked with the blades. The connecting rod is connected to the output shaft of the drive motor.

[0042] In this application, an indoor unit fan 28 is provided inside the indoor unit housing 25. The indoor unit fan 28 can introduce external air from the indoor unit air inlet 26 and discharge it through the indoor unit air outlet guide vane 23. An indoor unit evaporator 27 is also provided in the air circulation path, and the indoor unit evaporator 27 is arranged around the indoor unit fan 28.

[0043] In this application, the interior of the indoor unit housing 25 is also provided with various pipes, control circuit boards and other components to realize the complete function of the air conditioner.

[0044] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A multi-split air conditioning unit, comprising an outdoor unit (1) and an indoor unit (2), characterized in that, The outdoor unit (1) of the air conditioner is located above the indoor unit (2) of the air conditioner; the bottom surface of the outdoor unit (1) is attached to the top surface of the indoor unit (2). Several outdoor unit connectors (11) are arranged around the outdoor unit (1), and several indoor unit connectors (21) corresponding to the outdoor unit connectors (11) are arranged around the indoor unit (2). The corresponding outdoor unit connectors (11) and the outdoor unit air outlet (12) are connected by indoor unit hangers (22) and fasteners. The rod (22) is connected to the indoor unit housing (25) as a whole; the outdoor unit air outlet (12) of the air conditioner outdoor unit (1) is located at the top of the air conditioner outdoor unit (1) and is connected to the external ventilation pipe; the outdoor unit air inlet (14) of the air conditioner outdoor unit (1) is located around the air conditioner outdoor unit (1) to allow air from the surrounding environment to flow in; the bottom of the air conditioner indoor unit (2) is provided with an indoor unit air inlet (26), and the indoor unit air outlet guide vanes (23) are provided around the indoor unit air inlet (26).

2. The multi-split air conditioning unit according to claim 1, characterized in that, The outdoor unit (1) of the air conditioner also includes an outdoor unit condenser (15), which is connected to the outdoor unit compressor (16) through a high-pressure steam pipeline. The outdoor unit condenser (15) is also connected to a high-pressure gauge, a capillary tube and a low-pressure liquid pipeline. The outdoor unit condenser (15) is arranged between the outdoor unit air inlet (14) and the outdoor unit compressor (16). The outdoor unit (1) is equipped with an axial flow fan at the outdoor unit air outlet (12). The axial flow fan draws external air from the outdoor unit air inlet (14), passes it through the outdoor unit condenser (15) and then sends it to the outdoor unit air outlet (12).

3. The multi-split air conditioning unit according to claim 2, characterized in that, The indoor unit (2) of the air conditioner also includes an indoor unit evaporator (27) connected to a high-pressure steam pipeline. The indoor unit evaporator (27) is connected to a low-pressure liquid pipeline. The indoor unit (2) is equipped with a vortex fan (28). The vortex fan (28) draws in external air from the indoor unit air inlet (26) and discharges it from the indoor unit air outlet guide vane (23). The indoor unit air outlet guide vane (23) is equipped with a drive motor and a linkage structure linked to the drive motor. The indoor unit evaporator (27) is arranged around the vortex fan (28) and is located between the indoor unit air inlet (26) and the indoor unit air outlet guide vane (23).

4. The multi-split air conditioning unit according to claim 3, characterized in that, The bottom of the inner unit housing (25) is integrally provided with an inner unit base (24). The inner unit base (24) extends circumferentially away from the inner unit housing (25) and forms a platform structure. The top of the inner unit base (24) is integrally provided with an inner unit hanger (22). The inner unit hanger (22) passes through the inside of the inner unit connector (21) and the outer unit connector (11).

5. The multi-split air conditioning unit according to claim 4, characterized in that, The indoor unit connector (21) and the outdoor unit connector (11) are L-shaped or U-shaped structural plates. The indoor unit connector (21) and the outdoor unit connector (11) have notches for placing the indoor unit hanger (22). The indoor unit connector (21) and the outdoor unit connector (11) are respectively provided with fasteners at the connection positions with the indoor unit hanger (22). The top of the indoor unit hanger (22) extends to the top of the outdoor unit housing (13) and is connected to the building at the location.

6. The multi-split air conditioning unit according to any one of claims 1 to 5, characterized in that, Shock-absorbing pads are provided at the bottom of the outdoor unit housing (13) and the top of the indoor unit housing (25) at the corners, and filters are provided at the outdoor unit air inlet (14) and / or the indoor unit air inlet (26).

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