Flat plate split type air conditioner

Abstract

The utility model discloses a flat plate split type air conditioner, which relates to the technical field of air conditioners and comprises an indoor unit and an outdoor unit, the indoor unit is mounted in a room, the outdoor unit is arranged outside the room, and a water supply pipe and a water return pipe which are used for refrigerating / heating agent circulation are connected between the indoor unit and the outdoor unit. The indoor unit comprises a flat plate split type air conditioner indoor unit body, and the outdoor unit comprises a fluorine medium refrigerating / heating system and a water medium refrigerating / heating system. The flat plate split type air conditioner indoor unit body is vertically arranged on a wall, a water supplementing opening and an automatic exhaust valve are arranged at the upper end of one side of the flat plate split type air conditioner indoor unit body, and a condensate pipe is arranged on one side of the lower end of the flat plate split type air conditioner indoor unit body. According to the flat plate split type split air conditioner indoor unit, the indoor unit body has no pressure, no noise and no accumulated dust exist in operation, the manufacturing cost of the indoor unit is greatly reduced, and the use comfort degree is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a flat-plate split air conditioner. Background Art

[0002] At present, split air conditioners are composed of an outdoor unit, an indoor unit, and a refrigerant pipe.

[0003] The outdoor unit of the split air conditioner consists of a compressor, a four-way valve, a condenser, a condenser fan, a condenser fan motor, a dryer, an expansion valve, an outer cover and other accessories.

[0004] The indoor unit of the split air conditioner consists of an evaporator, a cross-flow fan, a fan motor, a front cover and a dust filter assembly, a clean dust filter, an air filter, an air guide plate and a drive motor, a drain pipe assembly, a main circuit board, a control board, a frame, a mounting plate and other accessories.

[0005] A power line and a control signal line are laid between the indoor unit and the outdoor unit. The control panel sends a control signal to control the operation of the outdoor unit and the indoor unit according to the set temperature signal and the real-time indoor temperature signal.

[0006] At present, the existing split air conditioners have the following defects:

[0007] 1. The indoor unit has a complex structure and requires high manufacturing technology, which leads to high cost;

[0008] 2. When the cross-flow fan is running, there is motor noise and wind noise, which has a great impact on the comfort of the environment;

[0009] 3. The airflow-enhanced heat exchange method results in rapid cooling and heating, which will have adverse effects on human health;

[0010] 4. The airflow generated will cause discomfort to people when it blows directly on them, and the comfort level will be poor;

[0011] 5. Although there is a filter in front of the evaporator, there will be a certain amount of dust on the cross-flow fan blades and evaporator fins, which will cause great pollution to the indoor environment and even cause illness to people;

[0012] 6. Regular professional cleaning and maintenance of the evaporator and cross-flow fan is required, which is cumbersome and requires a certain amount of money;

[0013] 7. The indoor unit has a certain volume, which has a certain impact on the indoor aesthetics; the cabinet air conditioner also occupies a certain indoor floor area; the duct air conditioner will occupy a certain indoor height and cause space oppression.

[0014] In view of the above problems, we provide a flat-plate split air conditioner to solve the above-mentioned problems. Utility Model Content

[0015] The purpose of the utility model is to provide a flat split air conditioner to solve the problems raised in the above background technology.

[0016] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0017] A flat split air conditioner comprises an indoor unit and an outdoor unit, wherein the indoor unit is installed in a room, the outdoor unit is arranged outside the room, and a water supply pipe and a water return pipe for circulating a cooling / heating agent are connected between the indoor unit and the outdoor unit;

[0018] The indoor unit includes a flat split air conditioner indoor unit body, and the outdoor unit includes a fluorine medium cooling / heating system and a water medium cooling / heating system.

[0019] As a further solution of the utility model: the main body of the flat-plate split air conditioner indoor unit is vertically arranged on the wall, and a water supply port is provided at the upper end of one side of the main body of the flat-plate split air conditioner indoor unit, and the water supply port is connected to the interior of the main body of the flat-plate split air conditioner indoor unit, and an automatic exhaust valve is provided in parallel on the water supply port, and a condensation water pipe is provided on one side of the lower end of the main body of the flat-plate split air conditioner indoor unit, and the end of the condensation water pipe is arranged outdoors.

[0020] As a further solution of the utility model: the main body of the flat-plate split air conditioner indoor unit includes an insulation board, a water distribution section, a heat exchange section, a water collecting section and a skirting condensation water trough, the insulation board is fixedly connected to the wall, the water distribution section is arranged at the upper end of the insulation board close to the roof board, the water collecting section is arranged at the lower end of the insulation board close to the floor, a guide plate is provided on the water distribution section, a water distributor is provided inside the water distribution section, a water collector is provided inside the water collecting section, a skirting condensation water trough is provided at the lower end of the water collecting section, the lower end of the skirting condensation water trough is attached to the floor, a skirting is provided on the side of the skirting condensation water trough away from the wall, a heat exchange section is provided between the water distribution section and the water collecting section, a heat exchange wall panel is provided on the side of the heat exchange section away from the insulation board, and an anti-condensation decorative strip is provided on the side of the heat exchange wall panel away from the heat exchange section.

[0021] As a further solution of the utility model: the water collector and the water distributor are both long U-shaped structures, and a plurality of water through holes of the same size are evenly opened on the water collector and the water distributor.

[0022] As a further solution of the utility model: a fixed installation channel is centrally provided inside the heat exchange section, and multiple heat exchange channels are separated by support plates on both sides of the fixed installation channel. The upper and lower ends of the heat exchange channel are respectively connected to the water collector and the water distributor.

[0023] As a further solution of the utility model: one end of the condensate pipe is connected to the skirting board condensate tank.

[0024] As a further solution of the utility model: one end of the water supply pipe is connected to the water distributor, and one end of the water return pipe is connected to the water collector.

[0025] As a further solution of the utility model: the outdoor unit fluorine medium refrigeration / heating system includes a compressor, an electromagnetic four-way valve, an air heat exchanger, an electronic expansion valve, a drying filter, a fluorine medium reversing module, a shell and tube heat exchanger and a gas-liquid separator. The compressor, the electromagnetic four-way valve, the air heat exchanger, the electronic expansion valve, the drying filter, the fluorine medium reversing module, the shell and tube heat exchanger and the gas-liquid separator are sequentially connected in series on the fluorine circulation pipeline. The fluorine medium reversing module includes a second electromagnetic three-way valve and a first electromagnetic three-way valve. The first electromagnetic three-way valve and the second electromagnetic three-way valve each have three connection ports, namely, an H port, an L port and a K port. The H ports of the first electromagnetic three-way valve and the second electromagnetic three-way valve are respectively connected to the two connection ports of the fluorine circulation pipeline, the second electromagnetic three-way valve and the L port of the first electromagnetic three-way valve are connected in parallel with pipelines, and the second electromagnetic three-way valve and the K port of the first electromagnetic three-way valve are connected in parallel with pipelines. The G and F connection ports of the shell and tube heat exchanger are respectively connected to the pipelines connected in parallel with the L and K ports of the first electromagnetic three-way valve and the second electromagnetic three-way valve.

[0026] As a further solution of the utility model: the water medium cooling / heating system includes a first solenoid valve, a water circulation module, a shell-and-tube heat exchanger, and a second solenoid valve. The water circulation module includes a DC variable frequency circulation pump, a water purifier, a first electric three-way valve, and a second electric three-way valve. The DC variable frequency circulation pump is connected in series to the return pipe. The return pipe is located on a pipeline at one end of the DC variable frequency circulation pump and is connected in series with the second solenoid valve. The return pipe is located on a pipeline at the other end of the DC variable frequency circulation pump and is connected in series with the water purifier, the first electric three-way valve, and the second electric three-way valve. The first electric three-way valve and the second The electric three-way valves all have an A interface, a B interface and a C interface. The A interface and the C interface of the second electric three-way valve are connected to the return pipe, and the B interface of the second electric three-way valve is connected to the second antifreeze pipeline. The other end of the second antifreeze pipeline is connected to the return pipe at a position between the second solenoid valve and the DC variable frequency circulation pump. The A interface and the C interface of the first electric three-way valve are connected to the return pipe, and the B interface of the first electric three-way valve is connected to the first antifreeze pipeline. The other end of the first antifreeze pipeline is connected to the return pipe at a position between the second solenoid valve and the water collector close to the second solenoid valve.

[0027] As a further solution of the utility model: one end of the shell and tube heat exchanger has an E inlet and a G inlet, the other end of the shell and tube heat exchanger has an F inlet and a D inlet, the water supply pipe is connected to the E inlet, one end of the fluorine circulation pipeline is connected to the G inlet, the return water pipe is connected to the D inlet, and the other end of the fluorine circulation pipeline is connected to the F inlet.

[0028] Compared with the prior art, the beneficial effects of the utility model are:

[0029] 1. The indoor unit of this flat-plate split air conditioner has no pressure, and the manufacturing process requirements and costs of the indoor unit are greatly reduced;

[0030] 2. This flat-plate split air conditioner can not only realize the heat exchange function at the end of the air conditioner, but also has the decoration and enclosure function of the aluminum alloy honeycomb large plate, so that users do not need to purchase repeatedly;

[0031] 3. The indoor unit of this flat-panel split air conditioner has no fan-type running parts and operates without noise, which greatly improves the environmental comfort;

[0032] 4. The indoor unit of this flat-panel split air conditioner has no water pressure, so there will be no hidden danger of water leakage during use;

[0033] 5. The indoor unit of this flat-panel split air conditioner has a large heat dissipation area, which slowly releases cold and heat to the environment, and will not cause sudden cold or hot conditions in the environment. The comfort is improved and "air conditioner disease" will not occur.

[0034] 6. The indoor unit of this flat-plate split air conditioner will not produce dust accumulation on the surface cooler, and no professional cleaning and maintenance is required;

[0035] 7. The indoor unit of this flat-panel split air conditioner has no moving parts to wear out, so no maintenance is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic structural diagram of a flat-plate split air conditioner of the utility model.

[0037] Figure 2 It is a front view of the indoor unit of the flat-plate split air conditioner in the utility model.

[0038] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of the indoor unit of the flat-plate split air conditioner.

[0039] Figure 4 It is a schematic diagram of the plan section structure of the water distributor in the utility model.

[0040] Figure 5 It is a schematic diagram of the cross-sectional structure of the water distribution section in the utility model.

[0041] Figure 6 It is a schematic diagram of the planar cross-sectional structure of the heat exchange section in the utility model.

[0042] Figure 7 It is a schematic diagram of the cross-sectional structure of the water collection section and the skirting condensation water tank in the utility model.

[0043] Figure 8 It is a schematic diagram of a heating cycle circuit of a flat-plate split air conditioner of the present utility model.

[0044] Fig. 9 The utility model is a schematic diagram of a refrigeration cycle circuit of a flat-plate split air conditioner.

[0045] Fig.10 The utility model is a schematic diagram of the antifreeze circuit of the flat-plate split air conditioner.

[0046] Fig.11 This is a schematic diagram of the installation of a flat-plate split air conditioner in the utility model.

[0047] Fig.12 It is a structural schematic diagram of the water collector in the utility model.

[0048] Fig.13 It is a schematic diagram of the shell and tube heat exchanger in the utility model.

[0049] Fig.14 It is a schematic diagram of the electric three-way valve in the utility model.

[0050] Fig.15 It is a schematic diagram of the electromagnetic three-way valve in the utility model.

[0051] Among them: 1. compressor; 2. electromagnetic four-way valve; 3. air heat exchanger; 4. electronic expansion valve; 5. drying filter; 6. first electromagnetic three-way valve; 7. shell and tube heat exchanger; 8. second electromagnetic three-way valve; 9. gas-liquid separator; 10. first electromagnetic valve; 11. automatic exhaust valve; 12. water supply port; 13. indoor unit body of flat split air conditioner; 14. second electromagnetic valve; 15. DC variable frequency circulation pump; 16. water purifier; 17. first electric three-way valve; 18. second electric three-way valve; 19. water supply pipe; 20. return pipe; 21. condensate pipe; 22. aluminum alloy honeycomb plate; 29. ​​fluorine circulation pipeline; 30. second antifreeze pipeline; 31. first antifreeze pipeline; 32. wall; 33. roof plate; 34. floor; 35. ceiling; 36. outdoor unit; 37. third electromagnetic valve;

[0052] 1301. Water distribution section; 1302. Water distributor; 1303. Guide plate; 1304. Heat exchange section; 1305. Heat exchange wall panel; 1307. Heat exchange channel; 1308. Installation and fixing channel; 1309. Water collection section; 1310. Water collector; 1311. Skirting line condensation water tank; 1312. Water-permeable dustproof strip; 1313. Skirting line; 1314. Insulation board; 1315. Anti-condensation decorative strip; 1316. Support plate. DETAILED DESCRIPTION

[0053] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0054] See also Figure 1-Figure 15In an embodiment of the utility model, a flat-plate split air conditioner includes an indoor unit and an outdoor unit 36, wherein the indoor unit is installed in a room, and the outdoor unit 36 ​​is arranged outside the room, and a water supply pipe 19 and a water return pipe 20 for circulating a cooling / heating agent are connected between the indoor unit and the outdoor unit 36; the indoor unit includes a flat-plate split air conditioner indoor unit body 13, and the flat-plate split air conditioner indoor unit body 13 includes a water distribution section 1301, a heat exchange section 1304, and a water collection section 1305. Section 1309, skirting condensation water tank 1311 and insulation board 1314; the outdoor unit 36 ​​includes a fluorine-media refrigeration / heating system, which includes a compressor 1, an electromagnetic four-way valve 2, an air heat exchanger 3, an electronic expansion valve 4, a drying filter 5, a fluorine-media reversing module, a shell-and-tube heat exchanger 7, and a gas-liquid separator 9. The compressor 1, the electromagnetic four-way valve 2, the air heat exchanger 3, the electronic expansion valve 4, the drying filter 5, the fluorine-media reversing module, the shell-and-tube heat exchanger 7, and the gas-liquid separator The separator 9 is sequentially connected in series on the fluorine circulation pipeline 29; the fluorine medium reversing module is composed of a second electromagnetic three-way valve 8 and a first electromagnetic three-way valve 6, and the fluorine medium reversing module includes a second electromagnetic three-way valve 8 and a first electromagnetic three-way valve 6, and the first electromagnetic three-way valve 6 and the second electromagnetic three-way valve 8 have three connection ports, namely, an H port, an L port and a K port, and the H ports of the first electromagnetic three-way valve 6 and the second electromagnetic three-way valve 8 are respectively connected to the two connection ports of the fluorine circulation pipeline 29, and the second The electromagnetic three-way valve 8 and the L port of the first electromagnetic three-way valve 6 are connected in parallel by a pipeline, and the second electromagnetic three-way valve 8 and the K port of the first electromagnetic three-way valve 6 are connected in parallel by a pipeline, and the G and F connecting ports of the shell and tube heat exchanger 7 are respectively connected to the pipelines connected in parallel with the L and K ports of the first electromagnetic three-way valve 6 and the second electromagnetic three-way valve 8; the outdoor unit 36 ​​also includes a water medium cooling / heating system, and the water medium cooling / heating system includes a second electromagnetic valve 14, a water medium circulation module, a shell and tube heat exchanger 7, and a first electromagnetic valve 10;The water medium circulation module is composed of a DC variable frequency circulation pump 15, a water purifier 16, a first electric three-way valve 17, and a second electric three-way valve 18. The DC variable frequency circulation pump 15 is connected in series to a return pipe 20. The return pipe 20 is connected in series to a second solenoid valve 14 on a pipeline at a connection port at one end of the DC variable frequency circulation pump 15. The return pipe 20 is connected in series to a water purifier 16, a first electric three-way valve 17, and a second electric three-way valve 18 on a pipeline at the other end of the DC variable frequency circulation pump 15. The first electric three-way valve 17 and the second electric three-way valve 18 both have an A interface, a B interface, and a C interface. The second electric The A interface and the C interface of the electric three-way valve 18 are connected to the return pipe 20, the B interface of the second electric three-way valve 18 is connected to the second antifreeze pipeline 30, the other end of the second antifreeze pipeline 30 is connected to the position of the return pipe 20 located between the second solenoid valve 14 and the DC variable frequency circulation pump 15, the A interface and the C interface of the first electric three-way valve 17 are connected to the return pipe 20, the B interface of the first electric three-way valve 17 is connected to the first antifreeze pipeline 31, and the other end of the first antifreeze pipeline 31 is connected to the position of the return pipe 20 located between the second solenoid valve 14 and the water collector 1310 near the second solenoid valve 14;

[0055] One end of the shell and tube heat exchanger 7 has an E inlet and a G inlet, and the other end of the shell and tube heat exchanger 7 has an F inlet and a D inlet, the water supply pipe 19 is connected to the E inlet, one end of the fluorine circulation pipeline 29 is connected to the G inlet, the return pipe 20 is connected to the D inlet, and the other end of the fluorine circulation pipeline 29 is connected to the F inlet; the fluorine medium refrigeration / heat system and the water medium cold / heat system exchange heat through the shell and tube heat exchanger 7, and the water medium cold / heat system then circulates the cold / heat to supply the indoor unit.

[0056] See also Figure 2 The indoor unit includes a flat-plate split air conditioner indoor unit body 13, which is vertically arranged on a wall, and a water replenishment port 12 is provided at an upper end of one side of the flat-plate split air conditioner indoor unit body 13, and the water replenishment port 12 is communicated with the interior of the flat-plate split air conditioner indoor unit body 13, and an automatic exhaust valve 11 is provided in parallel on the water replenishment port 12, and a condensation water pipe 21 is provided at one side of the lower end of the flat-plate split air conditioner indoor unit body 13, and the end of the condensation water pipe 21 is arranged outdoors; the condensation water pipe 21 can discharge the condensed water generated by condensation to the outdoors.

[0057] See also Figure 3The flat split air conditioner indoor unit body 13 is vertically arranged on the wall. The flat split air conditioner indoor unit body 13 is a hollow flat plate structure that is connected from top to bottom. The insulation board 1314 is fixedly connected to the wall 32. The water distribution section 1301 is arranged at the upper end of the insulation board 1314 near the roof board 33. The water collection section 1309 is arranged at the lower end of the insulation board 1314 near the floor 34. The water distribution section 130 1 is provided with a guide plate 1303, the water distribution section 1301 is provided with a water distributor 1302, the water collection section 1309 is provided with a water collector 1310, the lower end of the water collection section 1309 is provided with a skirting condensation water tank 1311, the lower end of the skirting condensation water tank 1311 is in contact with the floor 34, and the skirting condensation water tank 1311 can be regularly slid out from the lower part of the water collection section 1309 for later cleaning and maintenance to keep it clean.

[0058] A skirting line 1313 is provided on the side of the skirting line condensation water tank 1311 away from the wall, a heat exchange section 1304 is provided between the water distribution section 1301 and the water collection section 1309, a heat exchange wall plate 1305 is provided on the side of the heat exchange section 1304 away from the insulation board 1314, and an anti-condensation decorative strip 1315 is provided on the side of the heat exchange wall plate 1305 away from the heat exchange section 1304;

[0059] An anti-condensation decorative strip 1315 is provided on the outside of the heat exchange wall panel 1305 of the indoor unit body 13 of the flat-panel split air conditioner. When the flat-panel split air conditioner is initially turned on in summer, condensed water droplets may form on the outside of the heat exchange wall panel 1305. The condensed water droplets slide downward under the action of gravity, penetrate through the water-permeable dustproof strip 1312, and enter the skirting condensation water groove 1311, and then are discharged to the outside in a centralized manner or individually through the condensation water pipe 21; the anti-condensation decorative strip 1315 is a non-metallic structure, does not condense itself, and because it is in a protruding state, the condensed heat exchange wall panel 1305 can be hidden from contact with the human body or other objects.

[0060] See also Figure 4-Figure 7 and Fig.12The water collector 1310 and the water distributor 1302 are both long U-shaped structures, and a number of water-passing holes of the same size are evenly opened on the water collector 1310 and the water distributor 1302; a fixed installation channel 1308 is provided inside the heat exchange section 1304, and a plurality of heat exchange channels 1307 are separated on both sides of the fixed installation channel 1308 by support plates 1316, and the upper and lower ends of the heat exchange channel 1307 are respectively connected to the water distributor 1302 and the water collector 1310; one end of the water supply pipe 19 is connected to the water distributor 1302, and one end of the return pipe 20 is connected to the water collector 1310. During operation, the water medium evenly flowing out from the water distributor 1302 flows naturally down from the guide plate, is organized by the guide line to form a uniform water film, and flows downward on the inner wall of the heat exchange wall plate 1305 attached to the heat exchange section 1304 to cool / heat the heat exchange wall plate 1305. After the temperature is reduced / increased, the heat exchange wall plate 1305 heats the indoor air by radiation and convection; the heat-exchanged water medium flows back to the water collector 1310, and then circulates through the water circulation module.

[0061] See also Figure 8 When the flat split air conditioner is used for heating in winter, the fluorine medium is Figure 8 The heating cycle shown in the figure circulates from compressor 1--electromagnetic four-way valve 2--second electromagnetic three-way valve 8--tube heat exchanger 7--first electromagnetic three-way valve 6--drying filter 5--electronic expansion valve 4--air heat exchanger 3--electromagnetic four-way valve 2--gas-liquid separator 9 and then back to compressor 1, and the cycle repeats; the fluorine medium flows from the second electromagnetic three-way valve 8H port of the fluorine medium reversing module--the second electromagnetic three-way valve 8L port--tube heat exchanger 7G connecting port--tube heat exchanger 7F connecting port--first electromagnetic three-way valve 6K port--first electromagnetic three-way valve 6H port--drying filter 5, and the fluorine medium reversing module makes the fluorine medium flow from the E inlet to the D inlet of the tube heat exchanger 7, and keeps the direction of the fluorine medium in the tube heat exchanger 7 opposite to that of the water medium, so as to improve the heat exchange efficiency;

[0062] When the flat split air conditioner is used for heating in winter, the water medium is Figure 8 The heating cycle shown circulates in a loop, i.e., from the water collecting section 1309 - the second solenoid valve 14 - the DC variable frequency circulation pump 15 - the water purifier 16 - the first electric three-way valve 17 - the second electric three-way valve 18 - the first solenoid valve 10 - the water distribution section 1301 - the heat exchange section 1304 and then back to the water collecting section 1309, in a reciprocating cycle; the water medium circulation module causes the water medium to flow from the F inlet to the G inlet of the shell and tube heat exchanger 7, which is opposite to the direction of the fluorine medium in the shell and tube heat exchanger 7.

[0063] See also Fig. 9 When the flat split air conditioner is used for cooling in summer, the fluorine medium Fig. 9The refrigeration cycle shown in the figure is circulated, that is, compressor 1--electromagnetic four-way valve 2--air heat exchanger 3--electronic expansion valve 4--drying filter 5--first electromagnetic three-way valve 6--tube heat exchanger 7--second electromagnetic three-way valve 8--electromagnetic four-way valve 2--gas-liquid separator 9 and then back to compressor 1, and the cycle is repeated; the fluorine medium is from the H port of the first electromagnetic three-way valve 6 of the fluorine medium reversing module--the L port of the first electromagnetic three-way valve 6--the G connection port of the tube heat exchanger 7--the F connection port of the tube heat exchanger 7--the K port of the second electromagnetic three-way valve 8--the H port of the second electromagnetic three-way valve 8--the electromagnetic four-way valve 2, and the fluorine medium reversing module makes the fluorine medium flow from the E inlet of the tube heat exchanger 7 to the D inlet, and keeps the direction of the fluorine medium in the tube heat exchanger 7 opposite to that of the water medium, so as to improve the heat exchange efficiency;

[0064] When the flat split air conditioner is used for cooling in summer, the water medium is Figure 8 The refrigeration cycle loop shown circulates, that is, from the water collection section 1309 - the second solenoid valve 14 - the DC variable frequency circulation pump 15 - the water purifier 16 - the first electric three-way valve 17 - the second electric three-way valve 18 - the first solenoid valve 10 - the water distribution section 1301 - the heat exchange section 1304 and then back to the water collection section 1309, circulating reciprocatingly; the water medium circulation module makes the water medium flow from the F inlet to the G inlet of the shell and tube heat exchanger 7, which is opposite to the direction of the fluorine medium in the shell and tube heat exchanger 7.

[0065] See also Fig.10 In the winter shutdown state, when the outdoor temperature drops to the set value and is about to freeze, the water circulation module of the flat split air conditioner starts, and the water medium is Fig.10 As shown in the antifreeze circuit backflow, the DC variable frequency circulation pump 15 is turned on, the first solenoid valve 10 is turned on, the second solenoid valve 14 is closed, the first electric three-way valve 17A, B is turned on, the second electric three-way valve 18A, B is turned on, and the water medium returns to the water collecting section 1309 from the water supply pipe 19--tube heat exchanger 7--second electric three-way valve 18--second antifreeze pipeline 30--DC variable frequency circulation pump 15--water purifier 16--first electric three-way valve 17--first antifreeze pipeline 31--return pipe 20. The DC variable frequency circulation pump 15 draws the water medium stored in the water supply pipe 19, the tube heat exchanger 7, and the return pipe 20 back to the water collecting section 1309 for storage, ensuring that there is no water in the water supply pipe 19, the tube heat exchanger 7, and the return pipe 20, or only a small amount of water medium in some pipes, so as to prevent the water supply pipe 19, the tube heat exchanger 7, and the return pipe 20 from being frozen and damaged.

[0066] See also Fig.11 The indoor function of the flat split air conditioner can be installed side by side with the large aluminum alloy honeycomb panel 22 on the wall, and is perfectly matched. Fig.11As shown, it is not only beautiful but also does not take up space. There are no fan-like operating parts inside the indoor unit body 13 of the flat-panel split air conditioner. It runs without noise and does not generate dust accumulation, which greatly improves the environmental comfort.

[0067] The working principle of the utility model is:

[0068] The operation procedure of the fluorine system of the flat split air conditioner of the utility model during winter heating is as follows: after the system is turned on, the fluorine medium circulates according to the heating cycle loop, such as Figure 8 As shown, the compressor 1 outputs high-temperature and high-pressure refrigerant, which enters the G interface of the shell-and-tube heat exchanger 7 and flows out from the F interface after passing through the electromagnetic four-way valve 2 and the second electromagnetic three-way valve 8, releasing heat to the water medium that enters the E interface from the D interface, and heats it quickly and efficiently. Then, the refrigerant passes through the first electromagnetic three-way valve 6, the drying filter 5, and the electronic expansion valve 4. After the refrigerant is cooled and depressurized by the electronic expansion valve 4, it absorbs heat from the outdoor air when passing through the air heat exchanger 3, and returns to the compressor 1 through the electromagnetic four-way valve 2, and the cycle repeats.

[0069] The operation process of the fluorine system of the flat-plate split air conditioner in summer cooling is as follows: after the system is turned on, the fluorine medium circulates according to the refrigeration cycle loop, such as Fig. 9 As shown, the compressor 1 outputs high-temperature and high-pressure refrigerant, which releases heat to the outdoor air through the electromagnetic four-way valve 2 and the air heat exchanger 3. After the refrigerant is cooled and depressurized by the electronic expansion valve 4, it passes through the drying filter 5 and the first electromagnetic three-way valve 6, enters the shell-and-tube heat exchanger 7 through the G interface and flows out through the F interface, absorbs heat from the water medium that enters the E interface through the D interface, and cools it down quickly and efficiently, and then returns to the compressor through the second electromagnetic three-way valve 8 and the electromagnetic four-way valve 2, and the cycle repeats;

[0070] Electrical control of the fluorine system: When operating in winter for heating, the solenoid four-way valve 2 is energized and operated, the first solenoid three-way valve 6 is energized and operated, and the second solenoid three-way valve 8 is not energized and does not operate; when operating in summer for cooling, the solenoid four-way valve 2 is not energized and does not operate, the first solenoid three-way valve 6 is not energized and does not operate, and the second solenoid three-way valve 8 is energized and operates.

[0071] In cooling / heating mode, the operation process of the water system is the same: after the system is turned on, the water level sensor of the indoor unit detects the water level of the water collection section 1309. The main controller controls the third solenoid valve 37 on the water replenishment port 12 to open and replenish pure water according to the water level signal if water replenishment is needed. According to the indoor temperature sensor signal, the DC variable frequency circulation pump 15 is turned on, the first solenoid valve 10 is turned on, the second solenoid valve 14 is turned on, the first electric three-way valve 17A, C is turned on, and the second electric three-way valve 18A, C is turned on. The water medium sucked out from the water collection section 1309 enters the E interface through the shell and tube heat exchanger 7D interface and flows out, and then enters the U-shaped uniform water distributor 1302, and is evenly sprayed from the spray hole to the guide plate 1303 below, and is formed into a uniform water film through the guide line, and attached to the heat exchange wall plate of the heat exchange section 1304. The air flows downward along the inner wall of 1305 to cool / heat the heat exchange wall plate 1305. After the temperature is reduced / increased, the heat exchange wall plate 1305 cools / heats the indoor air by radiation and convection. When the indoor temperature approaches the set value, the DC variable frequency circulation pump 15 runs at a reduced speed. After a certain delay, when the indoor temperature reaches the set value, the DC variable frequency circulation pump 15 stops running, and at the same time, the second solenoid valve 14 is closed, the first solenoid valve 10 is closed with a delay, and the first electric three-way valve 17 and the second electric three-way valve 18 are reset.

[0072] When the indoor temperature is lower than the set value in winter and higher than the set value in summer, the above process will be run again, and the cycle will continue;

[0073] In winter shutdown state, when the outdoor temperature drops to the set value and is about to freeze, the antifreeze circuit will operate. Fig.10 As shown, the DC variable frequency circulation pump 15 is turned on, the first solenoid valve 10 is turned on, the second solenoid valve 14 is closed, the water flow reversing module is started, that is, the first electric three-way valves 17A and B are turned on, and the second electric three-way valves 18A and B are turned on. The DC variable frequency circulation pump 15 draws the water medium in the shell and tube heat exchanger 7 and the water medium pipeline back to the water collection section 1309 for storage, ensuring that there is no water in the water medium pipeline or only a small amount of water medium in some pipelines, so as to prevent the water medium pipeline from being damaged by freezing.

[0074] In summer, when there is no dehumidifier installed indoors and the air humidity is too high, condensation water droplets may form on the outside of the heat exchange wall panel 1305 when the flat-panel split air conditioner is initially turned on. The condensation water droplets slide downward under the action of gravity, penetrate through the water-permeable dustproof strip 1312, and enter the skirting condensation water groove 1311, and then are discharged collectively or individually to the outside through the condensation water pipe 21; in addition, an anti-condensation decorative strip 1315 is provided on the outside of the heat exchange wall panel 1305. The decorative strip is a non-metallic structure, does not condense itself, and because it is in a protruding state, the condensed heat exchange wall panel 1305 can be hidden from contact with the human body or other objects.

[0075] The water purifier 16 behind the DC variable frequency circulation pump 15 can perform high-level purification treatment on the circulating water medium, and the relevant parameter feedback is transmitted to the main controller for processing. When the water purifier 16 needs backwashing, the main controller controls it to automatically backwash and automatically discharge the backwashing wastewater.

[0076] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Although the present specification is described in accordance with the implementation modes, not every implementation mode includes only one technical solution. This description of the specification is only for the sake of 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 implementation modes that can be understood by those skilled in the art.

Claims

1. A flat split air conditioner, comprising an indoor unit and an outdoor unit (36), characterized in that: The indoor unit is installed in the room, and the outdoor unit (36) is arranged outside the room. A water supply pipe (19) and a water return pipe (20) for circulating a cooling / heating agent are connected between the indoor unit and the outdoor unit (36); The indoor unit comprises a flat-plate split-type air conditioner indoor unit body (13), and the outdoor unit (36) comprises a fluorine medium cooling / heating system and a water medium cooling / heating system.

2. A flat-plate split air conditioner according to claim 1, characterized in that: The flat-plate split-type air conditioner indoor unit body (13) is vertically arranged on a wall, a water supply port (12) is provided at an upper end of one side of the flat-plate split-type air conditioner indoor unit body (13), the water supply port (12) is communicated with the interior of the flat-plate split-type air conditioner indoor unit body (13), an automatic exhaust valve (11) is provided in parallel with the water supply port (12), a condensation water pipe (21) is provided at one side of a lower end of the flat-plate split-type air conditioner indoor unit body (13), and the end of the condensation water pipe (21) is arranged outdoors.

3. A flat-plate split air conditioner according to claim 2, characterized in that: The flat-plate split-type air conditioner indoor unit body (13) comprises a heat preservation plate (1314), a water distribution section (1301), a heat exchange section (1304), a water collection section (1309) and a skirting condensation water tank (1311); the heat preservation plate (1314) is attached to the wall (32); the water distribution section (1301) is arranged at a position close to the roof plate (33) at the upper end of the heat preservation plate (1314); the water collection section (1309) is arranged at a position close to the floor (34) at the lower end of the heat preservation plate (1314); a guide plate (1303) is arranged on the water distribution section (1301); a water distributor (1302) is arranged inside the water distribution section (1301); and the water collection section (1309) is provided with a heat exchanger (1304). A water collector (1310) is provided inside the water section (1309); a skirting condensation water trough (1311) is provided at the lower end of the water collection section (1309); the lower end of the skirting condensation water trough (1311) is in contact with the floor (34); a skirting (1313) is provided on the side of the skirting condensation water trough (1311) away from the wall (32); a heat exchange section (1304) is provided between the water distribution section (1301) and the water collection section (1309); a heat exchange wall panel (1305) is provided on the side of the heat exchange section (1304) away from the insulation board (1314); and an anti-condensation decorative strip (1315) is provided on the side of the heat exchange wall panel (1305) away from the heat exchange section (1304).

4. A flat-plate split air conditioner according to claim 3, characterized in that: The water collector (1310) and the water distributor (1302) are both long U-shaped structures, and a plurality of water through holes of the same size are evenly provided on the water collector (1310) and the water distributor (1302).

5. A flat-plate split air conditioner according to claim 3, characterized in that: A fixed installation channel (1308) is centrally disposed inside the heat exchange section (1304), and a plurality of heat exchange channels (1307) are separated on both sides of the fixed installation channel (1308) by support plates (1316). The upper end of the heat exchange channel (1307) is connected to a water distributor (1302), and the lower end of the heat exchange channel (1307) is connected to a water collector (1310).

6. A flat-plate split air conditioner according to claim 3, characterized in that: One end of the condensation water pipe (21) is in communication with the skirting board condensation water tank (1311).

7. A flat-plate split air conditioner according to claim 5, characterized in that: One end of the water supply pipe (19) is connected to the water distributor (1302), and one end of the water return pipe (20) is connected to the water collector (1310).

8. A flat-panel split air conditioner according to claim 1, characterized in that: The fluorine-containing media cooling / heating system of the outdoor unit (36) comprises a compressor (1), an electromagnetic four-way valve (2), an air heat exchanger (3), an electronic expansion valve (4), a drying filter (5), a fluorine-containing media reversing module, a shell-and-tube heat exchanger (7), and a gas-liquid separator (9). The compressor (1), the electromagnetic four-way valve (2), the air heat exchanger (3), the electronic expansion valve (4), the drying filter (5), the fluorine-containing media reversing module, the shell-and-tube heat exchanger (7), and the gas-liquid separator (9) are sequentially connected in series on the fluorine circulation pipeline (29). The fluorine-containing media reversing module comprises a second electromagnetic three-way valve (8) and a first electromagnetic three-way valve (6). The first electromagnetic The three-way valve (6) and the second electromagnetic three-way valve (8) each have three connection ports, namely an H port, an L port and a K port. The H ports of the first electromagnetic three-way valve (6) and the second electromagnetic three-way valve (8) are respectively connected to two connection ports of the fluorine circulation pipeline (29). The L port of the second electromagnetic three-way valve (8) and the first electromagnetic three-way valve (6) are connected in parallel by pipelines. The K port of the second electromagnetic three-way valve (8) and the first electromagnetic three-way valve (6) are connected in parallel by pipelines. The G and F connection ports of the shell-and-tube heat exchanger (7) are respectively connected to the pipelines connected in parallel to the L and K ports of the first electromagnetic three-way valve (6) and the second electromagnetic three-way valve (8).

9. A flat-panel split air conditioner according to claim 1, characterized in that: The water medium cooling / heating system comprises a first solenoid valve (10), a water circulation module, a shell-and-tube heat exchanger (7), and a second solenoid valve (14). The water circulation module comprises a DC variable frequency circulation pump (15), a water purifier (16), a first electric three-way valve (17), and a second electric three-way valve (18). The DC variable frequency circulation pump (15) is connected in series to a return pipe (20). The return pipe (20) is connected in series to the second solenoid valve (14) on a pipeline located at a connection port at one end of the DC variable frequency circulation pump (15). The return pipe (20) is connected in series to the water purifier (16), the first electric three-way valve (17), and the second electric three-way valve (18) on a pipeline located at the other end of the DC variable frequency circulation pump (15). The first electric three-way valve (17) and the second electric three-way valve (18) are connected in series. Each of the three-way valves (17) has an A interface, a B interface and a C interface. The A interface and the C interface of the second electric three-way valve (18) are connected to the return pipe (20). The B interface of the second electric three-way valve (18) is connected to a second antifreeze pipeline (30). The other end of the second antifreeze pipeline (30) is connected to the return pipe (20) at a position between the second solenoid valve (14) and the DC variable frequency circulation pump (15). The A interface and the C interface of the first electric three-way valve (17) are connected to the return pipe (20). The B interface of the first electric three-way valve (17) is connected to a first antifreeze pipeline (31). The other end of the first antifreeze pipeline (31) is connected to the return pipe (20) at a position between the second solenoid valve (14) and the water collector (1310) close to the second solenoid valve (14).

10. A flat-panel split air conditioner according to claim 8, characterized in that: One end of the shell and tube heat exchanger (7) has an E inlet and a G inlet, and the other end of the shell and tube heat exchanger (7) has an F inlet and a D inlet, the water supply pipe (19) is connected to the E inlet, one end of the fluorine circulation pipeline (29) is connected to the G inlet, the return water pipe (20) is connected to the D inlet, and the other end of the fluorine circulation pipeline (29) is connected to the F inlet.

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