Wall-mounted floor air conditioner indoor unit

Abstract

The wall-mounted floor air conditioner indoor unit comprises a front panel, a rear back plate, a fan chamber, a fan assembly and an air mixing cavity and is characterized in that the front panel and the rear back plate are provided with heat exchange medium flow channels, a blowing plate or a micro-channel plate is adopted, the front panel and the rear back plate are spaced to form a heat exchange air channel, the air mixing cavity is connected above the heat exchange air channel, the fan chamber is connected above the air mixing cavity, and the fan assembly is connected above the fan chamber. The fan assembly is arranged in the fan chamber, a fan is arranged in the air duct, an air port at one end of the air duct is communicated with the air mixing cavity, an air port at the other end of the air duct is communicated with the interior of the room, a primary air return port is arranged below the heat exchange air duct, a water condensation disc is arranged at the bottommost part of the heat exchange air duct, and the fan assembly is in a detachable reversing type. The fan adopts a cross-flow fan or a coaxial double-centrifugal fan, and the machine is ultra-thin, does not occupy space, is simple in structure, is not easy to accumulate dust, is convenient to clean, can replace copper with aluminum, can supply cold air at a high place in summer, can supply hot air on a floor in winter, and is good in user experience.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of air conditioners, and particularly relates to a wall-hung floor air conditioner indoor unit. BACKGROUND

[0002] In order to enhance heat exchange, the existing air conditioner indoor unit adopts an aluminum fin heat exchanger. Since the fins are dense and soft, dirt is easily accumulated, cleaning is difficult, and the fins are easily damaged. SUMMARY

[0003] The present application aims to provide a heat exchanger without aluminum fins, which is not easy to accumulate dirt and is convenient to clean. The wall-hung floor air conditioner indoor unit has a thin body, does not occupy too much indoor space, realizes the supply of cold air in summer and the supply of hot air in winter.

[0004] The solution of the present application is as follows: a wall-hung floor air conditioner indoor unit, which comprises a front panel, a back panel, a fan chamber, a fan assembly, and a mixed air chamber. The upper part of the front panel and the back panel is a heat exchange section, which is provided with a heat exchange medium flow channel and exchanges heat with air. The lower part is a pre-cooling section, which pre-cools the incoming air in summer. The heat exchange section adopts an inflation plate or a micro-channel plate. The front panel and the back panel are spaced apart to form a heat exchange air duct. The mixed air chamber is connected to the top of the heat exchange air duct. The fan chamber is connected to the top of the mixed air chamber. A secondary return air inlet is arranged on the side of the mixed air chamber. The fan assembly is arranged in the fan chamber and comprises an air duct, a fan, an air duct inlet, and an air duct outlet. The fan is arranged in the air duct. One end of the fan is connected to the mixed air chamber, and the other end is connected to the indoor space. A primary return air inlet is arranged below the pre-cooling section of the heat exchange air duct. The indoor return air enters the heat exchange air duct through the primary return air inlet. A condensate pan is arranged at the bottom of the heat exchange air duct. The air conditioner condensate water flows into the condensate pan and is finally discharged to the outdoor space. The fan assembly is detachable and reversible. By changing the interface, the air flow direction in the heat exchange air duct is changed. The fan adopts a cross-flow fan or a coaxial double centrifugal fan. A power distribution control device is arranged in the fan chamber. The bottom of the wall-hung floor air conditioner indoor unit is on the floor, and the top is below the floor. There is enough height to ensure the maximum air supply height in summer and to realize the supply of air from the bottom floor in winter. The distance between the front panel and the back panel is 3-5 cm, which is ultra-thin and does not occupy space.

[0005] When cold air is supplied in summer, the refrigerant enters the heat exchange medium flow channel of the upper part of the front panel and the back panel. The primary return air inlet and the secondary return air inlet are opened, and the fan is started. The indoor primary return air enters the heat exchange air duct through the primary return air inlet, exchanges heat with the refrigerant in the upper part of the front panel and the back panel, is cooled and dehumidified, and forms low-temperature condensate water on the panel surface. The low-temperature condensate water flows to the lower pre-cooling section along the panel surface, pre-cools the primary return air, recovers the cold energy of the low-temperature condensate water, realizes energy saving, and processes the primary return air into low-temperature air. The low-temperature air enters the upper mixed air chamber and mixes with the indoor high-temperature secondary return air entering through the secondary return air inlet. The air temperature is reheated and increased. Finally, the air is supplied into the indoor space through the fan assembly. Since the air temperature and the air supply height are increased, the human body does not feel cold air, and the experience is good.

[0006] When sending hot air in winter, the fan assembly is disassembled, the air outlet is replaced, the air supply is reversed, the heat medium enters the upper heat exchange medium flow channel of the front panel and the back panel, the primary return air outlet is opened, the secondary return air outlet is closed, the fan is started, the indoor cold air enters the air mixing chamber from the fan assembly, then enters the heat exchange air duct, is heated by the heat medium at the upper part of the front panel and the back panel, and finally is sent into the room through the bottom primary return air outlet to form floor hot air supply, so that the human leg feels comfortable.

[0007] Therefore, it avoids the problem of blowing cold air to the human body in summer and blowing hot air to the head in winter, fully utilizes the air conditioner condensate water, improves the comfort, achieves the purpose of energy saving, and has simple structure, is not easy to accumulate dust, is easy to clean, the front panel and the back panel adopt blow molding plate or micro-channel plate, aluminum material can be used, and aluminum with copper is realized. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 is the structure of the indoor unit of the wall-mounted floor air conditioner Figure 1 Figure 2 is the structure of the indoor unit of the wall-mounted floor air conditioner Figure 2 Figure 3 is the structure of the indoor unit of the wall-mounted floor air conditioner Figure 3 Figure 4 is the structure of the indoor unit of the wall-mounted floor air conditioner Figure 4 Figure 5 is the structure of the indoor unit of the wall-mounted floor air conditioner Figure 5 Figure 6 is the structure of the indoor unit of the wall-mounted floor air conditioner Figure 6 Figure 7 is the unfolded structure diagram of the front panel and the back panel Figure 8 is Figure 5 the elevation view BRIEF DESCRIPTION OF DRAWINGS 1, front panel, 2, back panel, 3, heat exchange air duct, 4, pre-cooling section, 5, fan chamber, 6, fan assembly, 7, air mixing chamber, 8, secondary return air outlet, 9, primary return air outlet, 10, condensate pan, 11, insulation board, 12, power distribution control equipment, 13, smooth panel, 14, water collecting groove, 15, inner lining plate, 16, fresh air outlet, 17, blow molding pipe, 18, heat exchange medium connecting pipe, 19, bending line, 20, fresh air pipe. DETAILED DESCRIPTION

[0009] Figure 1 , 2In the wall-hung floor air conditioner indoor unit, the front panel 1 and the back panel 2 are provided with heat exchange medium flow channels for heat exchange with air, and the lower part is a pre-cooling section 4 for pre-cooling incoming air in summer. The heat exchange section uses an inflation plate or a micro-channel plate. The front panel 1 and the back panel 2 are spaced apart to form a heat exchange air duct 3. The heat exchange air duct 3 is connected to the air mixing chamber 7 above, and the air mixing chamber 7 is connected to the fan chamber 5 above. A secondary return air inlet 8 is provided on the side of the air mixing chamber 7. The fan assembly 6 is installed in the fan chamber 5 and includes an air duct, a fan, an air duct inlet, and an air duct outlet. The fan is installed in the air duct, with one end of the air duct connected to the air mixing chamber 7 and the other end connected to the indoor space. A primary return air inlet 9 is provided below the pre-cooling section 4 of the heat exchange air duct 3, through which indoor return air enters the heat exchange air duct 3. A condensate pan 10 is provided at the bottom of the heat exchange air duct 3 to collect and drain condensate water to the outdoor space. The fan assembly 6 is detachable and reversible, allowing the direction of air flow in the heat exchange air duct 3 to be changed by adjusting the connection. The fan uses a cross-flow fan or a coaxial double centrifugal fan. The fan chamber 5 is equipped with power distribution control equipment. The wall-hung floor air conditioner indoor unit is designed to be floor-mounted with a height of more than 2.5 meters, ensuring sufficient height for maximum air supply in summer and floor-level air supply in winter. The distance between the front panel 1 and the back panel 2 is 3 to 5 cm, making the unit ultra-thin and not occupying space. The back panel 2 is equipped with hooks for hanging the unit on the wall. The outer sides of the front panel 1 and the back panel 2 are covered with insulation boards 11 to prevent condensation on the outside in summer. Air filters are installed on the upper and lower air inlets.

[0010] In summer, when cold air is supplied, the refrigerant enters the heat exchange medium flow channels at the top of the front panel 1 and the back panel 2 and flows out from the bottom. The primary return air inlet 9 and the secondary return air inlet 8 are opened, and the fan is started. The indoor primary return air enters the heat exchange air duct 3 from the primary return air inlet 9, exchanges heat with the refrigerant at the top of the front panel 1 and the back panel 2, and is cooled and dehumidified. Low-temperature condensate water forms on the panel surface and flows to the pre-cooling section 4 at the bottom, pre-cooling the primary return air and recovering the cold energy of the low-temperature condensate water, achieving energy saving. The primary return air is processed into low-temperature air and enters the air mixing chamber 7 at the top, mixing with the indoor high-temperature secondary return air entering through the secondary return air inlet 8. The air temperature is reheated and increased, and finally supplied to the indoor space through the fan assembly 5. Due to the increased air temperature and supply height, the human body does not feel cold wind, and the experience is good. The flow direction of the refrigerant is opposite to the flow direction of the air in the heat exchange air duct 3, and the heat exchange is more complete.

[0011] When sending hot air in winter, the fan assembly 5 is disassembled, the air outlet is changed, the air supply is reversed, the heat medium enters the heat exchange medium flow channel from the lower part of the front panel 1 and the rear back panel 2, and flows out from the upper part. The primary return air outlet 9 is opened, the secondary return air outlet 8 is closed, the fan is started, the indoor cold air enters the air mixing chamber 7 from the fan assembly 5, then enters the heat exchange air duct 3, is heated by the heat medium at the upper part of the front panel 1 and the rear back panel 2, and finally is sent into the room through the bottom primary return air outlet 9, forming floor heat air supply, and the legs of the human body feel comfortable. The flow direction of the heat medium is opposite to the flow direction of the air in the heat exchange air duct 3, and the heat exchange is more sufficient.

[0012] The front panel 1 and the rear back panel 2 can be connected to refrigerant, serving as an indoor unit of a split air conditioner, and can also serve as a terminal of an air conditioning water system, connected to air conditioning cold and hot water.

[0013] Figure 3 In the embodiment, the front panel 1 is not attached to the heat preservation plate 11, becoming a smooth panel 13, and in summer, condensate water of the air conditioner flows from the outer panel to the water tank 14 at the bottom of the smooth panel 13, and then flows to the condensate water tray 10. The smooth panel 13 enhances heat exchange with indoor air, forming cold radiation to the indoor in summer and forming hot radiation to the indoor in winter.

[0014] Figure 4 In the embodiment, an inner lining plate 15 is added to the heat exchange air duct 3, and a plurality of inner lining plates 15 can also be added, improving the heat exchange power of the air conditioner. The structure is the same as that of the smooth panel 13, and the heat exchange section adopts an inflation plate or a micro-channel plate with a plate spacing of 2 to 5 cm. In summer, when cold air is sent, the condensate water generated on the plate surface directly falls into the condensate water tray 10 at the bottom. In the falling process of the pre-cooling section 4, the low-temperature condensate water exchanges heat with the indoor return air, pre-cools and cools the primary return air, recovers the cold energy of the low-temperature condensate water, and realizes energy saving.

[0015] Figure 5 、 6 In the embodiment, a new air inlet 16 is opened at the pre-cooling section 4 at the bottom of the heat exchange air duct 3, which is connected to outdoor air, and the fan assembly 6 is a detachable and movable type. In summer, when cold air is sent, the fan assembly 6 is installed in the upper fan room 5, and under the suction of the fan, indoor return air and fresh air enter from the bottom and are sent out from the top. In winter, when hot air is sent, the fan assembly 6 is installed in the lower fan room, and under the suction of the fan, indoor return air enters from the top, fresh air enters from the pre-cooling section 4, and finally is sent out from the bottom. A power supply and control signal socket should be provided at the bottom, and when the fan assembly 6 is installed at the lower part, the plug is inserted into the power distribution and control device 12 in the fan room 5.

[0016] Figure 7This is an expanded diagram of the front panel 1 and back panel 2. This is a two-part blown plate heat exchanger constructed between two aluminum or stainless steel plates. The heat exchange duct 3 is formed by bending the sheet metal along bend lines 19, and the seams are welded and sealed. The heat exchange duct 3 serves as both the air duct and the housing of the wall-mounted unit, within which one or more blown plate lining panels 15 can be placed. The blown tubes 17 are horizontal serpentine channels, and the heat exchange medium connection pipe 18 exits at the bottom of the plates, receiving refrigerant or hot and cold water for air conditioning. To enhance heat transfer, the spacing between the blown tubes 17 is preferably between 2 and 5 centimeters, and the heat exchange area should be at least 2 square meters. During summer cooling, the refrigerant enters the upper horizontal serpentine channel and exits the lower one. During winter heating, the heat medium enters the lower horizontal serpentine channel and exits the upper one, in the opposite direction of the air flow in the heat exchange duct 3, for more efficient heat exchange. The front panel 1, back panel 2, and inner lining 15 can also be made of microchannel heat exchange plates. Horizontal serpentine flow channels are preferred. To prevent scaling and clogging, they should be connected to refrigerant rather than hot and cold water for air conditioning. The horizontal serpentine flow channel is not limited to this type; other flow channel configurations may also be used.

[0017] Figure 8 yes Figure 5 In the elevation view, the fresh air duct 20 is connected to the fresh air outlet 16 and is connected to the outside. The fresh air duct 20, the heat exchange medium pipe 18, the condensate pipe, and the cable can share a wall hole.

[0018] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention shall fall within the scope of protection of the present invention.

Claims

1. The wall-mounted floor-standing air conditioner indoor unit includes a front panel, a back panel, a fan chamber, a fan assembly, and an air mixing chamber. Its characteristics are: The upper part of the front panel and the back panel is the heat exchange section, which has a heat exchange medium flow channel for heat exchange with the air. The lower part is the pre-cooling section, which pre-cools the incoming air in summer. The heat exchange section uses a blowing plate or a microchannel plate. The front panel and the back panel are separated to form a heat exchange duct. The upper part of the heat exchange duct is connected to the mixed air cavity, and the upper part of the mixed air cavity is connected to the fan room. A secondary return air outlet is installed on the side of the mixed air cavity. The fan assembly is installed in the fan room. It includes an air duct, a fan, an air duct inlet, and an air duct outlet. The fan is installed in the air duct, and one end of it is connected to the fan. The air inlet is connected to the air mixing chamber, and the air inlet at the other end is connected to the indoor room. A primary return air inlet is installed below the pre-cooling section of the heat exchange duct, and a condensate tray is installed at the bottom of the heat exchange duct. The air conditioning condensate flows into it and is finally discharged to the outside. The fan assembly is a detachable reversing type. By replacing the interface, the air flow direction in the heat exchange duct is changed. The fan adopts a cross-flow fan or a coaxial double centrifugal fan. The power distribution control equipment is installed in the fan room. The bottom of the wall-mounted floor-standing air conditioner indoor unit is on the ground, and the top is located below the floor.

2. Wall-mounted floor-standing air conditioner indoor unit, which includes a front panel, a back panel, an inner lining panel, a fan chamber, a fan assembly, and an air mixing chamber, and is characterized by: The upper part of the front panel, back panel and inner lining plate is the heat exchange section, which has a heat exchange medium flow channel for heat exchange with the air. The lower part is the pre-cooling section for pre-cooling the incoming air in summer. The heat exchange section adopts a blowing plate or a micro-channel plate. The front panel and the back panel are separated to form a heat exchange air duct. One or more inner lining plates are installed in the heat exchange air duct. The air mixing chamber is connected above the heat exchange air duct. The fan room is connected above the air mixing chamber. A secondary return air port is installed on the side of the air mixing chamber. The fan assembly is installed in the fan room. It includes an air duct, a fan, an air duct inlet, an air duct outlet, and a fan. The machine is installed in the air duct, with one end of the air outlet connected to the air mixing chamber and the other end of the air outlet connected to the indoor room. A primary return air outlet is installed below the pre-cooling section of the heat exchange duct, and a condensate tray is installed at the bottom of the heat exchange duct. The condensed water of the air conditioner converges in it and is finally discharged to the outside. The fan assembly is a detachable reversing type. By replacing the interface, the air flow direction in the heat exchange duct is changed. The fan adopts a cross-flow fan or a coaxial double centrifugal fan. The power distribution control equipment is installed in the fan room. The bottom of the wall-mounted floor-standing air conditioner indoor unit is on the ground and the top is located below the floor.

3. The wall-mounted floor-standing air conditioner indoor unit includes a front panel, a back panel, an inner lining panel, a fan chamber, a fan assembly, and an air mixing chamber, and is characterized by: The upper part of the front panel, back panel and inner lining plate is the heat exchange section, which has a heat exchange medium flow channel for heat exchange with the air. The lower part is the pre-cooling section, which pre-cools the incoming air in summer. The heat exchange section adopts a blowing plate or a micro-channel plate. The front panel and the back panel are separated to form a heat exchange air duct. One or more inner lining plates are installed in the heat exchange air duct. The air mixing chamber is connected above the heat exchange air duct. The fan room is connected above the air mixing chamber. A secondary return air port is installed on the side of the air mixing chamber. The fan assembly includes an air duct, a fan, an air duct inlet and an air duct outlet. The fan is installed in the air duct. The fan assembly is detachable and movable. It is installed in the upper fan room in seasonal season, with one end of the air outlet connected to the mixing chamber and the other end of the air outlet connected to the indoor room. It is installed below the heat exchange duct in winter, with one end of the air outlet connected to the heat exchange duct and the other end of the air outlet connected to the indoor room. A condensate tray is installed at the bottom of the heat exchange duct, and the air conditioning condensate flows into it and is finally discharged to the outdoors. A fresh air inlet is opened at the pre-cooling section at the bottom of the heat exchange duct, which is connected to the outdoor air. The fan adopts a cross-flow fan or a coaxial double centrifugal fan. The power distribution control equipment is installed in the fan room. The bottom of the wall-mounted floor-standing air conditioner indoor unit is on the ground and the top is located below the floor.

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