Heat pump air conditioner, air conditioning control system, and air conditioning control method

Abstract

The present invention discloses a heat pump air conditioner, an air conditioning control system, and an air conditioning control method, belonging to the field of heating, ventilation, and air conditioning technology. The air conditioner includes a first indoor heat exchange system, a second indoor heat exchange system, a compression system, and an outdoor heat exchange system, and also includes a reversing system. The reversing system is used to change the order and direction of the refrigerant output from the compression system flowing through the first indoor heat exchange system, the second indoor heat exchange system, and the outdoor heat exchange system, so that when the first indoor heat exchange system selects cooling, heating, or inoperative, the second indoor heat exchange system independently selects cooling, heating, or inoperative. This system can meet personalized needs for temperature adjustment in different spaces, as well as air sterilization, humidification, odor control, and other personalized needs. It can also improve the effectiveness of precise control of the initial temperature of the indoor heat exchange system.

Description

Technical Field

[0001] The present invention belongs to the technical field of heating, ventilation and air conditioning, and in particular relates to a heat pump air conditioner, an air conditioning control system and an air conditioning control method. Background Art

[0002] Air conditioning is an indispensable part of modern life, regulating the indoor air temperature for comfort. Multi-split central air conditioning is a type of air conditioner that utilizes one outdoor unit connected to two or more indoor units via piping. The system utilizes air-cooled heat exchange on the outdoor side and direct evaporative heat exchange on the indoor side. Because multi-split central air conditioners utilize only one outdoor unit, saving space, the indoor units can be concealed in the ceiling for a more aesthetically pleasing appearance, making them widely used in the home air conditioning market.

[0003] In the prior art, the structure and working principle of a multi-split central air conditioner are as described in the multi-split air conditioner and its air conditioning system disclosed in Chinese Patent 202222482019.7. The multi-split central air conditioner includes an outdoor unit and two indoor units, and the two indoor units are installed in different indoor spaces. During operation, the flow direction of the refrigerant in the refrigerant circulation circuit can be switched by controlling the movement of the valve core inside the four-way reversing valve. Specifically, when the air conditioning system operates in heating mode, the valve core inside the four-way reversing valve moves, so that its first interface is connected to the fourth interface, and the second interface is connected to the third interface. The flow path of the refrigerant is: compressor-first indoor heat exchanger and / or second indoor heat exchanger-first electronic expansion valve and / or second electronic expansion valve-outdoor heat exchanger-compressor. When the air-conditioning system operates in cooling mode, the valve core inside the four-way reversing valve moves, connecting its first interface with the second interface, and connecting the third interface with the fourth interface. The refrigerant flow path is: compressor-outdoor heat exchanger-first electronic expansion valve and / or second electronic expansion valve-first indoor heat exchanger and / or second indoor heat exchanger-compressor.

[0004] However, the problems with the existing technology are:

[0005] First, the four-way reversing valve of the multi-split central air conditioner has limited switching modes through the movement of the valve core. When the first room is cooled, the second room can only choose cooling and cannot be heated. When the first room is heated, the second room can only choose heating and cannot be cooled. Especially in spring and autumn, people with different temperature sensitivities will choose cooling in some rooms and heating in others under the same multi-split central air conditioner, but the four-way reversing valve cannot coordinate and achieve this, and cannot meet personalized temperature control needs.

[0006] Second, when only one indoor unit is working and the other is not working, the refrigerant will flow in the non-working indoor unit at the minimum flow rate instead of being cut off. Since the cross-flow fan of the non-working indoor unit is not running, there is a temperature difference between the temperature of the non-working indoor unit and the room temperature. Therefore, when the user turns on the non-working indoor unit, the controller will misjudge the ambient temperature, resulting in inaccurate temperature regulation. Even though the multi-split air conditioner and air-conditioning system disclosed in Chinese Patent 202222482019.7 are equipped with a bypass line connected in parallel with each indoor heat exchanger, each bypass line is provided with a solenoid valve, and the solenoid valve is electrically connected to the controller of the air-conditioning system, so that the opening and closing state of the solenoid valve can be controlled based on the opening and closing of the indoor heat exchanger corresponding to the bypass line, realizing flow channel switching, so that the refrigerant can bypass the closed indoor heat exchanger to form a refrigerant circulation loop, but some refrigerant will still mix with the refrigerant in the indoor heat exchanger, resulting in a temperature difference between the temperature of the indoor unit and the room temperature, thereby inaccurate temperature regulation.

[0007] Third, some users may have some personalized needs, such as the need to humidify the air, add odor to the air, or sterilize the air. The existing technology often installs corresponding humidification devices, air odor addition devices, and plasma excitation devices in the internal space occupied by the indoor unit. However, the space around the indoor unit is limited and cannot meet these personalized needs. The air outlet grille cannot automatically adjust the air outlet direction, and the functions of the blades are too single and have not been fully developed. Summary of the Invention

[0008] The purpose of the present invention is to provide a heat pump air conditioner, an air conditioning control system, and an air conditioning control method to address the above-mentioned deficiencies. The purpose is to solve the problems that the multi-split central air conditioner uses a four-way reversing valve with limited switching modes through the action of the valve core, which cannot meet personalized temperature control needs. There is a temperature difference between the temperature of the non-working indoor unit and the room temperature. Therefore, when the user turns on the non-working indoor unit, the controller will misjudge the ambient temperature, resulting in inaccurate temperature adjustment. It is impossible to meet personalized needs such as air humidification, air odor addition, or air sterilization without occupying the space vacated around the indoor unit. The air outlet grille is also unable to automatically adjust the air outlet direction, the functions of the blades are too single, and the functionality has not been fully developed. To achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0009] A heat pump air conditioner includes a first indoor heat exchange system, a second indoor heat exchange system, a compression system and an outdoor heat exchange system, and also includes a reversing system; the reversing system is used to change the order and direction of the refrigerant output from the compression system flowing through the first indoor heat exchange system, the second indoor heat exchange system and the outdoor heat exchange system, so that when the first indoor heat exchange system selects cooling or heating or is not working, the second indoor heat exchange system independently selects cooling or heating or is not working.

[0010] Furthermore, the reversing system includes a shell, a reversing device arranged in the shell, and a first port, a second port, a third port, a fourth port, a fifth port, a sixth port, a seventh port, and an eighth port arranged on the shell and connected to the reversing device; the first indoor heat exchange system includes a first indoor heat exchanger and a first electronic expansion valve; the fifth port, the first indoor heat exchanger, the first electronic expansion valve, and the sixth port are connected in sequence; the second indoor heat exchange system includes a second indoor heat exchanger and a second electronic expansion valve; the seventh port, the second indoor heat exchanger, the second electronic expansion valve, and the eighth port are connected in sequence; the compression system includes a compressor; the outlet of the compressor is connected to the first port, and the inlet of the compressor is connected to the second port; the outdoor heat exchange system includes an outdoor heat exchanger; the third port, the outdoor heat exchanger, and the fourth port are connected in sequence.

[0011] Furthermore, the reversing device includes a first reversing valve, a second reversing valve, a third reversing valve, and a fourth reversing valve; the first reversing valve is respectively connected to the first port, the third port, the fifth port, and the seventh port, for controlling the on-off of the first port and the third port, the fifth port, and the seventh port; the second reversing valve is respectively connected to the second port, the fourth port, the fifth port, and the seventh port, for controlling the on-off of the second port and the fourth port, the fifth port, and the seventh port; the third reversing valve is respectively connected to the third port, the sixth port, and the eighth port, for controlling the on-off of the third port and the sixth port and the eighth port; the fourth reversing valve is respectively connected to the fourth port, the sixth port, and the eighth port, for controlling the on-off of the fourth port and the sixth port and the eighth port.

[0012] Furthermore, the first reversing valve, the second reversing valve, the third reversing valve, and the fourth reversing valve all include a reversing valve unit; the reversing valve unit includes a valve shell with a cylindrical cavity therein and a valve core that matches the cylindrical cavity; eight ports are surrounded and evenly spaced on the outer wall of the valve shell, and are arranged in clockwise order from zero degrees as the first port, the second port, the third port, the fourth port, the fifth port, the sixth port, the seventh port, and the eighth port; the valve core is rotated to connect any three consecutive ports with the port opposite the middle port among the three consecutive ports, and the remaining ports are closed.

[0013] Furthermore, the first port, the second port and the eighth port of the first reversing valve are connected to the fifth port, the third port and the seventh port respectively, and the remaining ports are connected to the first port; the first port, the second port and the eighth port of the second reversing valve are connected to the fifth port, the fourth port and the seventh port respectively, and the remaining ports are connected to the second port; the first port and the eighth port of the third reversing valve are connected to the eighth port and the sixth port respectively, and the remaining ports are connected to the third port; the first port and the eighth port of the fourth reversing valve are connected to the eighth port and the sixth port respectively, and the remaining ports are connected to the fourth port.

[0014] Furthermore, it also includes an air outlet grille; the air outlet grille includes a frame, several positive plates, several negative plates, and several separators; the left and right ends of the positive plates, negative plates, and separators are rotatably connected to the frame, and the positive plates, negative plates, and separators are always parallel; the positive plates and negative plates are arranged in pairs, the same pair of positive plates and negative plates are adjacent, and separators are provided between different pairs of positive plates and negative plates; the upper surface of the separator is provided with a strip groove; the strip groove is embedded with a strip sponge; the bottom of the strip sponge is provided with a strip cavity; the front end of the separator is provided with a rubber cover; one side of the rubber cover contacts the strip groove, and the other side contacts the outside world.

[0015] Furthermore, the air outlet grille also includes an angle adjustment device; the angle adjustment device is used to drive the positive plate, negative plate, and isolation plate to flip synchronously; the angle adjustment device includes an angle adjustment motor, a connecting handle, a driving column, a driving plate and two connecting plates; the angle adjustment motor is fixed on the frame, and the output end of the angle adjustment motor is fixed to one end of the connecting handle; the other end of the connecting handle is fixed with a driving column; the driving column passes through a horizontally arranged waist-shaped hole provided on the driving plate; the driving plate is fixed to one of the connecting plates; the left and right ends of the positive plate, negative plate, and isolation plate are respectively rotatably connected to a connecting plate; in the same pair of positive plates and negative plates, the negative plate is located on the upper side and the positive plate is located on the lower side, and when the positive plate and the negative plate are in a horizontal position, the front end of the positive plate exceeds the front end of the negative plate, and the rear end of the negative plate exceeds the rear end of the positive plate.

[0016] Furthermore, it also includes a third heat exchange system; the third heat exchange system includes a third indoor heat exchanger, a third electronic expansion valve, a first stop valve, a second stop valve, a third stop valve and a fourth stop valve; the fifth port and the seventh port are connected to one end of the third indoor heat exchanger through the first stop valve and the second stop valve respectively; the other end of the third indoor heat exchanger is connected to the third electronic expansion valve; the third electronic expansion valve is connected to the sixth port and the eighth port respectively through the third stop valve and the fourth stop valve.

[0017] An air-conditioning control system comprises a controller, a high-voltage direct current power supply, a plurality of control switches, valve motors corresponding to the number of reversing valve units, and the above-mentioned heat pump air conditioner; the valve motor is used to drive the valve core of the corresponding reversing valve unit to rotate; the positive pole of the high-voltage direct current power supply is electrically connected to each positive plate through a control switch, and the negative pole of the high-voltage direct current power supply is electrically connected to each negative plate through a control switch; the first indoor heat exchange system and the second indoor heat exchange system both further include a cross-flow fan; the outdoor heat exchange system further includes an outdoor fan; the control switch, valve motor, angle adjustment motor, first electronic expansion valve, second electronic expansion valve, cross-flow fan, outdoor fan, and compressor are electrically connected to the controller respectively.

[0018] An air conditioning control method employing the above-mentioned air conditioning control system includes the steps of simultaneously heating the first indoor heat exchange system and the second indoor heat exchange system, simultaneously cooling the first indoor heat exchange system and the second indoor heat exchange system, cooling the first indoor heat exchange system while heating it, cooling the first indoor heat exchange system while heating it, heating the second indoor heat exchange system while the first indoor heat exchange system is not in operation, cooling the second indoor heat exchange system while the first indoor heat exchange system is not in operation, heating the first indoor heat exchange system while the second indoor heat exchange system is not in operation, cooling the first indoor heat exchange system while the second indoor heat exchange system is not in operation, and plasma sterilization.

[0019] The step of simultaneously heating the first indoor heat exchange system and the second indoor heat exchange system is specifically as follows: the controller controls the first electronic expansion valve, the second electronic expansion valve, the crossflow fan, the outdoor fan, and the compressor to operate, and at the same time, the controller controls the valve motor to drive the corresponding valve core to rotate to a specified position, so that the seventh port, the eighth port, the first port, and the fourth port of the first reversing valve are connected, the fifth port, the sixth port, the seventh port, and the second port of the second reversing valve are connected, the seventh port, the eighth port, the first port, and the fourth port of the third reversing valve are connected, and the fifth port, the sixth port, the seventh port, and the second port of the fourth reversing valve are connected;

[0020] The step of simultaneously cooling the first indoor heat exchange system and the second indoor heat exchange system is specifically as follows: the controller controls the first electronic expansion valve, the second electronic expansion valve, the crossflow fan, the outdoor fan, and the compressor to operate, and at the same time, the controller controls the valve motor to drive the corresponding valve core to rotate to a specified position, so that the fifth port, the sixth port, the seventh port, and the second port of the first reversing valve are connected, the seventh port, the eighth port, the first port, and the fourth port of the second reversing valve are connected, the fifth port, the sixth port, the seventh port, the second port of the third reversing valve are connected, and the seventh port, the eighth port, the first port, and the fourth port of the fourth reversing valve are connected;

[0021] The second indoor heat exchange system cools and the first indoor heat exchange system heats in the following steps: the controller controls the first electronic expansion valve, the second electronic expansion valve, the crossflow fan, the outdoor fan, and the compressor to operate, and at the same time, the controller controls the valve motor to drive the corresponding valve core to rotate to a specified position, so that the fourth port, the fifth port, the sixth port, and the first port of the first reversing valve are connected, the third port, the fourth port, the fifth port, and the eighth port of the second reversing valve are connected, the third port, the fourth port, the fifth port, and the eighth port of the third reversing valve are connected, and the fourth port, the fifth port, the sixth port, and the first port of the fourth reversing valve are connected;

[0022] The first indoor heat exchange system cools and the second indoor heat exchange system heats in the following steps: the controller controls the first electronic expansion valve, the second electronic expansion valve, the crossflow fan, the outdoor fan, and the compressor to operate, and at the same time, the controller controls the valve motor to drive the corresponding valve core to rotate to a specified position, so that the third port, the fourth port, the fifth port, and the eighth port of the first reversing valve are connected, the fourth port, the fifth port, the sixth port, and the first port of the second reversing valve are connected, the fourth port, the fifth port, the sixth port, and the first port of the third reversing valve are connected, and the third port, the fourth port, the fifth port, and the eighth port of the fourth reversing valve are connected;

[0023] The specific steps of heating the first indoor heat exchange system and not operating the second indoor heat exchange system are as follows: the controller controls the first electronic expansion valve, the crossflow fan, the outdoor fan, and the compressor of the first indoor heat exchange system to operate, and at the same time, the controller controls the valve motor to drive the corresponding valve core to rotate to a specified position, so that the fourth port, the fifth port, the sixth port, and the first port of the first reversing valve are connected, the fifth port, the sixth port, the seventh port, and the second port of the second reversing valve are connected, the third port, the fourth port, the fifth port, and the eighth port of the third reversing valve are connected, and the fifth port, the sixth port, the seventh port, and the second port of the fourth reversing valve are connected;

[0024] The steps of cooling the first indoor heat exchange system and not operating the second indoor heat exchange system are specifically as follows: the controller controls the first electronic expansion valve, the crossflow fan, the outdoor fan, and the compressor of the first indoor heat exchange system to operate, and at the same time, the controller controls the valve motor to drive the corresponding valve core to rotate to a specified position, so that the fifth port, the sixth port, the seventh port, and the second port of the first reversing valve are connected, the fourth port, the fifth port, the sixth port, and the first port of the first reversing valve are connected, the fifth port, the sixth port, the seventh port, and the second port of the third reversing valve are connected, and the third port, the fourth port, the fifth port, and the eighth port of the fourth reversing valve are connected;

[0025] The specific steps of heating the first indoor heat exchange system by the second indoor heat exchange system and not operating the first indoor heat exchange system are as follows: the controller controls the second electronic expansion valve, the crossflow fan, the outdoor fan, and the compressor of the second indoor heat exchange system to operate, and at the same time, the controller controls the valve motor to drive the corresponding valve core to rotate to a specified position, so that the third port, the fourth port, the fifth port, and the eighth port of the first reversing valve are connected, the fifth port, the sixth port, the seventh port, and the second port of the second reversing valve are connected, the fourth port, the fifth port, the sixth port, and the first port of the third reversing valve are connected, and the fifth port, the sixth port, the seventh port, and the second port of the fourth reversing valve are connected;

[0026] The step of cooling the first indoor heat exchange system by the second indoor heat exchange system is specifically as follows: the controller controls the second electronic expansion valve, the crossflow fan, the outdoor fan, and the compressor of the second indoor heat exchange system to operate, and at the same time, the controller controls the valve motor to drive the corresponding valve core to rotate to a specified position, so that the fifth port, the sixth port, the seventh port, and the second port of the first reversing valve are connected, the third port, the fourth port, the fifth port, and the eighth port of the second reversing valve are connected, the fifth port, the sixth port, the seventh port, and the second port of the third reversing valve are connected, and the fourth port, the fifth port, the sixth port, and the first port of the fourth reversing valve are connected;

[0027] The plasma sterilization step is specifically as follows: the controller controls the operation of the cross-flow blower, the controller controls the angle adjustment motor to adjust the positive plate, the negative plate, and the isolation plate to synchronously flip until the front and rear ends of the positive plate and the negative plate are flush, the controller controls the control switches corresponding to some or all of the positive plates and the negative plates to close, the high-voltage DC power supply provides a voltage difference between the positive plate and the negative plate with the control switch closed, so that plasma is excited between the positive plate and the negative plate with the control switch closed, and the plasma sterilizes the air blown out by the cross-flow blower.

[0028] The beneficial effects of the present invention are:

[0029] First, the present invention discloses a heat pump air conditioner, an air conditioning control system, and an air conditioning control method, which belong to the field of HVAC technology. By improving the four-way reversing valve of a multi-split central air conditioner, an air conditioning switching mode is added, which can meet the requirements of the same multi-split central air conditioner. When the first indoor heat exchange system selects cooling or heating or does not work, the second indoor heat exchange system can independently select cooling or heating or does not work, thereby meeting personalized temperature control needs.

[0030] Second, the present invention discloses a heat pump air conditioner, an air conditioning control system, and an air conditioning control method, which belong to the field of HVAC technology. By improving the four-way reversing valve of a multi-split central air conditioner, it can be ensured that when the indoor unit is not working, the working refrigerant will not be mixed with the refrigerant of the non-working indoor heat exchanger, thereby avoiding the temperature difference between the temperature of the indoor unit and the room temperature, and ensuring the accuracy of temperature regulation when the non-working indoor heat exchanger is started.

[0031] Third, the present invention discloses a heat pump air conditioner, an air conditioning control system, and an air conditioning control method, which belong to the field of HVAC technology. By improving the air outlet grille and making full use of the position of the blades, the positive plate, the negative plate, and the separator act as a humidifying device, an air odor-enhancing device, and a plasma excitation device, avoiding occupying the space around the indoor unit and meeting the personalized needs of users. The air outlet grille can automatically adjust the air outlet direction, enriching the functions of the blades. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the simultaneous heating steps of the first indoor heat exchange system and the second indoor heat exchange system of the present invention;

[0033] Figure 2 This is a schematic diagram of the simultaneous cooling steps of the first indoor heat exchange system and the second indoor heat exchange system of the present invention;

[0034] Figure 3 This is a schematic diagram of the steps of cooling by the second indoor heat exchange system and heating by the first indoor heat exchange system according to the present invention;

[0035] Figure 4 This is a schematic diagram of the steps of the first indoor heat exchange system cooling and the second indoor heat exchange system heating according to the present invention;

[0036] Figure 5 This is a schematic diagram of the steps in which the first indoor heat exchange system is heating and the second indoor heat exchange system is not working;

[0037] Figure 6 This is a schematic diagram of the steps in which the first indoor heat exchange system is cooling and the second indoor heat exchange system is not working;

[0038] Figure 7 This is a schematic diagram of the steps in which the second indoor heat exchange system of the present invention heats the first indoor heat exchange system;

[0039] Figure 8 This is a schematic diagram of the steps in which the second indoor heat exchange system of the present invention cools the first indoor heat exchange system;

[0040] Figure 9 It is a cross-sectional schematic diagram of the reversing valve unit of the present invention;

[0041] Figure 10Schematic diagram of the cross section of the reversing valve unit of the present invention at eight positions;

[0042] Figure 11 It is a schematic diagram of the three-dimensional structure of the air outlet grille of the present invention;

[0043] Figure 12 It is a partial schematic diagram of the three-dimensional structure of the air outlet grille of the present invention;

[0044] Figure 13 This is a second partial schematic diagram of the three-dimensional structure of the air outlet grille of the present invention;

[0045] Figure 14 It is a partial schematic diagram of the three-dimensional structure of the positive plate and the negative plate of the air outlet grille of the present invention when ready to excite plasma;

[0046] Figure 15 3D structural diagram of the reversing valve unit of the present invention;

[0047] Figure 16 This is a schematic diagram of the three-dimensional structure of the reversing valve unit of the present invention, from another perspective;

[0048] Figure 17 3D structural diagram of the reversing valve unit of the present invention, second from another perspective;

[0049] In the accompanying drawings: 1-first port, 2-second port, 3-third port, 4-fourth port, 5-fifth port, 6-sixth port, 7-seventh port, 8-eighth port, 11-first indoor heat exchanger, 12-first electronic expansion valve, 21-second indoor heat exchanger, 22-second electronic expansion valve, 31-compressor, 41-outdoor heat exchanger, 10-first reversing valve, 20-second reversing valve, 30-third reversing valve, 40-fourth reversing valve, 9-reversing valve unit, 901-valve housing, 902-valve core, 91-first port, 92-second port, 93 - third position port, 94- fourth position port, 95- fifth position port, 96- sixth position port, 97- seventh position port, 98- eighth position port, 51- air outlet grille, 52- frame, 53- positive plate, 54- negative plate, 55- separator, 56- strip groove, 57- strip sponge, 58- strip cavity, 59- rubber cover, 61- angle adjustment motor, 62- connecting handle, 63- driving column, 64- driving plate, 65- connecting plate, 66- waist-shaped hole, 67- control switch, 100- large port, 101- small port, 102- sealing rubber, 103- valve motor,

[0050] 104-shaft groove, 105-shaft protrusion. DETAILED DESCRIPTION

[0051] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but the present invention is not limited to the following embodiments.

[0052] Example 1:

[0053] See attached Figures 1 to 10 A heat pump air conditioner includes a first indoor heat exchange system, a second indoor heat exchange system, a compression system, and an outdoor heat exchange system, and also includes a reversing system; the reversing system is used to change the order and direction of the refrigerant output from the compression system circulating in the first indoor heat exchange system, the second indoor heat exchange system, and the outdoor heat exchange system, so that when the first indoor heat exchange system selects cooling or heating or does not work, the second indoor heat exchange system independently selects cooling or heating or does not work. From the above structure, it can be seen that the four-way reversing valve of the existing multi-split central air conditioner has limited modes of switching through the action of the valve core. When the first indoor heat exchange system is cooling, the second indoor heat exchange system can only choose cooling and cannot heat. When the first indoor heat exchange system is heating, the second indoor heat exchange system can only choose heating and cannot cool, which cannot meet personalized temperature control needs. We improved the four-way reversing valve and replaced it with a reversing system. The reversing system is used to change the order and direction of the refrigerant output from the compression system in the first indoor heat exchange system, the second indoor heat exchange system, and the outdoor heat exchange system, thereby forming eight working modes. We stipulate that the refrigerant first passes through the first indoor heat exchanger 11 of the first indoor heat exchange system, and then passes through the first electronic expansion valve 12 as the positive direction, and vice versa as the reverse direction. The same applies to the second indoor heat exchange system.

[0054] The reversing system controls the refrigerant output from the compression system to simultaneously pass through the first indoor heat exchange system and the second indoor heat exchange system in a forward direction, and then pass through the outdoor heat exchange system. The refrigerant returns to the compression system, and the first indoor heat exchange system and the second indoor heat exchange system generate heat simultaneously.

[0055] The reversing system controls the refrigerant output from the compression system to first pass through the outdoor heat exchange system, and then reversely pass through the first indoor heat exchange system and the second indoor heat exchange system at the same time. The refrigerant returns to the compression system, and the first indoor heat exchange system and the second indoor heat exchange system are cooled simultaneously;

[0056] The reversing system controls the refrigerant output from the compression system to first pass through the first indoor heat exchange system in the forward direction, then through the outdoor heat exchange system, and then reversely pass through the second indoor heat exchange system. The refrigerant returns to the compression system, and the second indoor heat exchange system cools and the first indoor heat exchange system heats;

[0057] The reversing system controls the refrigerant output from the compression system to first pass through the second indoor heat exchange system in a forward direction, then through the outdoor heat exchange system, and then reversely pass through the first indoor heat exchange system. The refrigerant returns to the compression system, and the first indoor heat exchange system cools and the second indoor heat exchange system heats;

[0058] The reversing system controls the refrigerant output from the compression system to first pass through the first indoor heat exchange system in a forward direction, then pass through the outdoor heat exchange system, and the refrigerant returns to the compression system. The first indoor heat exchange system heats the second indoor heat exchange system and does not work;

[0059] The reversing system controls the refrigerant output from the compression system to first pass through the outdoor heat exchange system, and then reversely pass through the first indoor heat exchange system. The refrigerant returns to the compression system, so the first indoor heat exchange system is cooling and the second indoor heat exchange system does not work;

[0060] The reversing system controls the refrigerant output from the compression system to first pass through the second indoor heat exchange system in a forward direction, then pass through the outdoor heat exchange system, and the refrigerant returns to the compression system. The second indoor heat exchange system heats the first indoor heat exchange system, and the first indoor heat exchange system does not work.

[0061] The reversing system controls the refrigerant output from the compression system to first pass through the outdoor heat exchange system, and then reversely pass through the second indoor heat exchange system. The refrigerant returns to the compression system, and the second indoor heat exchange system cools the first indoor heat exchange system and does not work.

[0062] It can be seen that the reversing system can be used to change the order and direction of the refrigerant output from the compression system in the first indoor heat exchange system, the second indoor heat exchange system, and the outdoor heat exchange system, so that when the first indoor heat exchange system selects cooling or heating or not working, the second indoor heat exchange system can independently select cooling or heating or not working, to meet personalized needs, and there is no need to add additional heating equipment, saving costs, and only changes need to be made to the reversing system.

[0063] The reversing system includes a housing, a reversing device disposed within the housing, and a first port 1, a second port 2, a third port 3, a fourth port 4, a fifth port 5, a sixth port 6, a seventh port 7, and an eighth port 8 disposed on the housing and connected to the reversing device. The first indoor heat exchange system includes a first indoor heat exchanger 11 and a first electronic expansion valve 12; the fifth port 5, the first indoor heat exchanger 11, the first electronic expansion valve 12, and the sixth port 6 are sequentially connected. The second indoor heat exchange system includes a second indoor heat exchanger 21 and a second electronic expansion valve 22; the seventh port 7, the second indoor heat exchanger 21, the second electronic expansion valve 22, and the eighth port 8 are sequentially connected. The compression system includes a compressor 31; the outlet of the compressor 31 is connected to the first port 1, and the inlet of the compressor 31 is connected to the second port 2. The outdoor heat exchange system includes an outdoor heat exchanger 41; the third port 3, the outdoor heat exchanger 41, and the fourth port 4 are sequentially connected. As can be seen from the above structure, the reversing system must follow a certain connection logic. Since the eight modes require a lot of logical switching, it is easy for on-site installers to make mistakes. Therefore, the reversing device that plays a real role in the reversing system is arranged in the outer shell, and it also plays a protective role for the reversing device. Eight ports are set on the outer shell. Externally, you only need to connect the first indoor heat exchange system, the second indoor heat exchange system, the compression system and the outdoor heat exchange system to the eight ports. The installation is simple. Then the reversing system connects the reversing device to the eight ports from the inside before leaving the factory. The reversing device controls the on-off relationship between the eight ports, thereby realizing the control of the order and direction of the refrigerant output from the compression system circulating in the first indoor heat exchange system, the second indoor heat exchange system and the outdoor heat exchange system.

[0064] The reversing device includes a first reversing valve 10, a second reversing valve 20, a third reversing valve 30, and a fourth reversing valve 40; the first reversing valve 10 is connected to the first port 1, the third port 3, the fifth port 5, and the seventh port 7, respectively, for controlling the on-off of the first port 1 and the third port 3, the fifth port 5, and the seventh port 7; the second reversing valve 20 is connected to the second port 2, the fourth port 4, the fifth port 5, and the seventh port 7, respectively, for controlling the on-off of the second port 2 and the fourth port 4, the fifth port 5, and the seventh port 7; the third reversing valve 30 is connected to the third port 3, the sixth port 6, and the eighth port 8, respectively, for controlling the on-off of the third port 3 and the sixth port 6 and the eighth port 8; the fourth reversing valve 40 is connected to the fourth port 4, the sixth port 6, and the eighth port 8, respectively, for controlling the on-off of the fourth port 4 and the sixth port 6 and the eighth port 8. As can be seen from the above structure, the reversing device includes a first reversing valve 10, a second reversing valve 20, a third reversing valve 30, and a fourth reversing valve 40. We only need four valves to achieve eight modes of switching, which greatly simplifies the control logic. These four valves are integrated into the housing. Specifically:

[0065] When the first reversing valve 10 controls the first port 1 to be connected with the fifth port 5 and the seventh port 7, the second reversing valve 20 controls the second port 2 to be connected with the fourth port 4, and the third reversing valve 30 controls the third port 3 to be connected with the sixth port 6 and the eighth port 8, the refrigerant path is: compressor 31-first port 1-fifth port 5 (seventh port 7)-first indoor heat exchanger 11 (second indoor heat exchanger 21)-first electronic expansion valve 12 (second electronic expansion valve 22)-sixth port 6 (eighth port 8)-third port 3-outdoor heat exchanger 41-fourth port 4-second port 2-compressor 31, and the first indoor heat exchange system and the second indoor heat exchange system heat simultaneously;

[0066] When the first reversing valve 10 controls the communication between the first port 1 and the third port 3, the second reversing valve 20 controls the communication between the second port 2 and the fifth port 5 and the seventh port 7, and the fourth reversing valve 40 controls the communication between the fourth port 4 and the sixth port 6 and the eighth port 8, the refrigerant path is: compressor 31-first port 1-third port 3-outdoor heat exchanger 41-fourth port 4-sixth port 6 (eighth port 8)-first electronic expansion valve 12 (second electronic expansion valve 22)-first indoor heat exchanger 11 (second indoor heat exchanger 21)-fifth port 5 (seventh port 7)-second port 2-compressor 31, and the first indoor heat exchange system and the second indoor heat exchange system are cooled simultaneously;

[0067] When the first reversing valve 10 controls the communication between the first port 1 and the fifth port 5, the second reversing valve 20 controls the communication between the second port 2 and the seventh port 7, the third reversing valve 30 controls the communication between the third port 3 and the sixth port 6, and the fourth reversing valve 40 controls the communication between the fourth port 4 and the eighth port 8, the refrigerant path is: compressor 31-first port 1-fifth port 5-first indoor heat exchanger 11-first electronic expansion valve 12-sixth port 6-third port 3-outdoor heat exchanger 41-fourth port 4-eighth port 8-second electronic expansion valve 22-second indoor heat exchanger 21-seventh port 7-second port 2-compressor 31. The second indoor heat exchange system is cooling and the first indoor heat exchange system is heating.

[0068] When the first reversing valve 10 controls the communication between the first port 1 and the seventh port 7, the second reversing valve 20 controls the communication between the second port 2 and the fifth port 5, the third reversing valve 30 controls the communication between the third port 3 and the eighth port 8, and the fourth reversing valve 40 controls the communication between the fourth port 4 and the sixth port 6, the refrigerant path is: compressor 31-first port 1-seventh port 7-second indoor heat exchanger 21-second electronic expansion valve 22-eighth port 8-third port 3-outdoor heat exchanger 41-fourth port 4-sixth port 6-first electronic expansion valve 12-first indoor heat exchanger 11-fifth port 5-second port 2-compressor 31. The first indoor heat exchange system is cooling and the second indoor heat exchange system is heating.

[0069] When the first reversing valve 10 controls the first port 1 to be connected with the fifth port 5, the second reversing valve 20 controls the second port 2 to be connected with the fourth port 4, and the third reversing valve 30 controls the third port 3 to be connected with the sixth port 6, the refrigerant path is: compressor 31-first port 1-fifth port 5-first indoor heat exchanger 11-first electronic expansion valve 12-sixth port 6-third port 3-outdoor heat exchanger 41-fourth port 4-second port 2-compressor 31. The first indoor heat exchange system is heating and the second indoor heat exchange system is not working. When the second indoor heat exchange system is not working, no working refrigerant will enter the second indoor heat exchange system, avoiding a temperature difference between the temperature of the second indoor heat exchange system and the room temperature, thereby ensuring accurate temperature regulation when the second indoor heat exchange system is started.

[0070] When the first reversing valve 10 controls the first port 1 to be connected to the third port 3, the second reversing valve 20 controls the second port 2 to be connected to the fifth port 5, and the fourth reversing valve 40 controls the fourth port 4 to be connected to the sixth port 6, the refrigerant path is: compressor 31-first port 1-third port 3-outdoor heat exchanger 41-fourth port 4-sixth port 6-first electronic expansion valve 12-first indoor heat exchanger 11-fifth port 5-second port 2-compressor 31, the first indoor heat exchange system cools the second indoor heat exchange system and does not work; when the second indoor heat exchange system is not working, no working refrigerant will enter the second indoor heat exchange system, avoiding a temperature difference between the temperature of the second indoor heat exchange system and the room temperature, and ensuring accurate temperature regulation when the second indoor heat exchange system is started.

[0071] When the first reversing valve 10 controls the first port 1 to be connected with the seventh port 7, the second reversing valve 20 controls the second port 2 to be connected with the fourth port 4, and the third reversing valve 30 controls the third port 3 to be connected with the eighth port 8, the refrigerant path is: compressor 31-first port 1-seventh port 7-second indoor heat exchanger 21-second electronic expansion valve 22-eighth port 8-third port 3-outdoor heat exchanger 41-fourth port 4-second port 2-compressor 31. The second indoor heat exchange system heats the first indoor heat exchange system while the first indoor heat exchange system does not work. When the first indoor heat exchange system does not work, no working refrigerant will enter the second indoor heat exchange system, avoiding a temperature difference between the temperature of the first indoor heat exchange system and the room temperature, thereby ensuring accurate temperature regulation when the first indoor heat exchange system is started.

[0072] When the first reversing valve 10 controls the first port 1 to be connected to the third port 3, the second reversing valve 20 controls the second port 2 to be connected to the seventh port 7, and the fourth reversing valve 40 controls the fourth port 4 to be connected to the eighth port 8, the refrigerant path is: compressor 31-first port 1-third port 3-outdoor heat exchanger 41-fourth port 4-eighth port 8-second electronic expansion valve 22-second indoor heat exchanger 21-seventh port 7-second port 2-compressor 31, then the second indoor heat exchange system cools the first indoor heat exchange system and the first indoor heat exchange system does not work; when the first indoor heat exchange system is not working, no working refrigerant will enter the second indoor heat exchange system, avoiding a temperature difference between the temperature of the first indoor heat exchange system and the room temperature, and ensuring accurate temperature regulation when the first indoor heat exchange system is started.

[0073] The first reversing valve 10, the second reversing valve 20, the third reversing valve 30, and the fourth reversing valve 40 all include a reversing valve unit 9; the reversing valve unit 9 includes a valve housing 901 with a cylindrical cavity therein and a valve core 902 that matches the cylindrical cavity; the outer wall of the valve housing 901 is surrounded and evenly spaced with eight ports, which are arranged clockwise from zero degrees as the first port 91, the second port 92, the third port 93, the fourth port 94, the fifth port 95, the sixth port 96, the seventh port 97, and the eighth port 98; the valve core 902 is rotated to connect any three consecutive ports with the port directly opposite the middle port among the three consecutive ports, and the remaining ports are closed. From the above structure, it can be seen that the first reversing valve 10, the second reversing valve 20, the third reversing valve 30, and the fourth reversing valve 40 all use the same reversing valve unit 9, which improves the adaptability of the parts. The reversing valve unit 9 includes a valve housing 901 with a cylindrical cavity therein and a valve core 902 that fits within the cylindrical cavity. The valve core 902 is capable of rotating within the cylindrical cavity. A radial through-hole is provided on the valve core 902, with a large opening at one end and a small opening at the other. Eight ports are evenly spaced around the outer wall of the valve housing 901, with adjacent ports spaced 45 degrees apart. The large opening can cover any three consecutive ports when the valve core 902 rotates, while the small opening covers the port directly opposite the middle port among the three consecutive ports. The outer wall of the valve core 902 is wrapped with sealing rubber, so that refrigerant can only flow between the large and small openings and cannot enter between the valve core 902 and the inner wall of the cylindrical cavity. This allows the valve core 902 to rotate, connecting any three consecutive ports to the port directly opposite the middle port among the three consecutive ports, while the remaining ports are sealed. Each port is structured as a short tube with a small flange at one end, which is used to connect to the corresponding port through a pipeline. The interior of the short tube is connected to the cylindrical cavity in the valve housing 901. The outer wall of the cylindrical valve core 902 is wrapped with sealing rubber. The sealing rubber avoids the large and small ports, so that it can interference seal with the cylindrical cavity in the valve housing 901, thereby connecting the large and small ports. The output end of the valve motor is provided with a shaft protrusion, which is used to match the shaft groove provided at the end of the cylindrical valve core 902. Therefore, the valve motor can control the rotation of the cylindrical valve core 902. Therefore, changing the rotation angle can control any three consecutive ports to connect with the port directly opposite the middle port of the three consecutive ports, while the other ports are closed. The valve motor is fixed to the valve housing 901. Specifically, the valve housing 901 includes a shell, one end of which is provided with a first fixed flange, and a detachable end cover is fixed to the first fixed flange. The valve motor is fixed to the detachable end cover, and the output end of the valve motor passes through the end cover. The angle of rotation of the valve core 902 controlled by the valve motor is a prior art and will not be described in detail.

[0074] For example, when the reversing valve unit 9 is in the first gear, the first port 91 is connected to the fourth port 94, the fifth port 95, and the sixth port 96; when the reversing valve unit 9 is in the second gear, the second port 92 is connected to the fifth port 95, the sixth port 96, and the seventh port 97; when the reversing valve unit 9 is in the third gear, the third port 93 is connected to the sixth port 96, the seventh port 97, and the eighth port 98; when the reversing valve unit 9 is in the fourth gear, the fourth port 94 is connected to the seventh port 97, the eighth port 98, and the first port 91 When the reversing valve unit 9 is in the fifth gear, the fifth position port 95 is connected with the eighth position port 98, the first position port 91, and the second position port 92; when the reversing valve unit 9 is in the sixth gear, the sixth position port 96 is connected with the first position port 91, the second position port 92, and the third position port 93; when the reversing valve unit 9 is in the seventh gear, the seventh position port 97 is connected with the second position port 92, the third position port 93, and the fourth position port 94; when the reversing valve unit 9 is in the eighth gear, the eighth position port 98 is connected with the third position port 93, the fourth position port 94, and the fifth position port 95. When the adjacent gears are switched, the valve motor drives the valve core 902 to rotate forty-five degrees. This realizes the control of the rotation angle of the valve core 902 of the four reversing valve units 9, and realizes the on-off control between the eight positions of each of the four reversing valve units 9. Since the first reversing valve 10, the second reversing valve 20, the third reversing valve 30, and the fourth reversing valve 40 all include the reversing valve unit 9, the gear position of the reversing valve unit 9 can also be used to express the gear position of the first reversing valve 10, the second reversing valve 20, the third reversing valve 30, and the fourth reversing valve 40.

[0075] The first port 91, the second port 92 and the eighth port 98 of the first reversing valve 10 are connected to the fifth port 5, the third port 3 and the seventh port 7 respectively, and the remaining ports are connected to the first port 1; the first port 91, the second port 92 and the eighth port 98 of the second reversing valve 20 are connected to the fifth port 5, the fourth port 4 and the seventh port 7 respectively, and the remaining ports are connected to the second port 2; the first port 91 and the eighth port 98 of the third reversing valve 30 are connected to the eighth port 8 and the sixth port 6 respectively, and the remaining ports are connected to the third port 3; the first port 91 and the eighth port 98 of the fourth reversing valve 40 are connected to the eighth port 8 and the sixth port 6 respectively, and the remaining ports are connected to the fourth port 4.

[0076] When the first reversing valve 10 is in the fourth gear, the second reversing valve 20 is in the second gear, the third reversing valve 30 is in the fourth gear, and the fourth reversing valve 40 is in the second gear, the first reversing valve 10 controls the first port 1 to be connected to the fifth port 5 and the seventh port 7, the second reversing valve 20 controls the second port 2 to be connected to the fourth port 4, and the third reversing valve 30 controls the third port 3 to be connected to the sixth port 6 and the eighth port 8, and the first indoor heat exchange system and the second indoor heat exchange system heat simultaneously;

[0077] When the first reversing valve 10 is in the second gear, the second reversing valve 20 is in the fourth gear, the third reversing valve 30 is in the second gear, and the fourth reversing valve 40 is in the fourth gear, the first reversing valve 10 controls the first port 1 to be connected to the third port 3, the second reversing valve 20 controls the second port 2 to be connected to the fifth port 5 and the seventh port 7, and the fourth reversing valve 40 controls the fourth port 4 to be connected to the sixth port 6 and the eighth port 8, and the first indoor heat exchange system and the second indoor heat exchange system are cooled simultaneously;

[0078] When the first reversing valve 10 is in the first gear, the second reversing valve 20 is in the eighth gear, the third reversing valve 30 is in the eighth gear, and the fourth reversing valve 40 is in the first gear, the first reversing valve 10 controls the first port 1 to be connected to the fifth port 5, the second reversing valve 20 controls the second port 2 to be connected to the seventh port 7, the third reversing valve 30 controls the third port 3 to be connected to the sixth port 6, and the fourth reversing valve 40 controls the fourth port 4 to be connected to the eighth port 8. The second indoor heat exchange system is cooling, and the first indoor heat exchange system is heating.

[0079] When the first reversing valve 10 is in the eighth gear, the second reversing valve 20 is in the first gear, the third reversing valve 30 is in the first gear, and the fourth reversing valve 40 is in the eighth gear, the first reversing valve 10 controls the first port 1 to be connected to the seventh port 7, the second reversing valve 20 controls the second port 2 to be connected to the fifth port 5, the third reversing valve 30 controls the third port 3 to be connected to the eighth port 8, and the fourth reversing valve 40 controls the fourth port 4 to be connected to the sixth port 6. The first indoor heat exchange system is cooling and the second indoor heat exchange system is heating.

[0080] When the first reversing valve 10 is in the first gear, the second reversing valve 20 is in the second gear, the third reversing valve 30 is in the eighth gear, and the fourth reversing valve 40 is in the second gear, the first reversing valve 10 controls the first port 1 to be connected to the fifth port 5, the second reversing valve 20 controls the second port 2 to be connected to the fourth port 4, and the third reversing valve 30 controls the third port 3 to be connected to the sixth port 6. The first indoor heat exchange system is heating and the second indoor heat exchange system is not working.

[0081] When the first reversing valve 10 is in the second gear, the second reversing valve 20 is in the first gear, the third reversing valve 30 is in the second gear, and the fourth reversing valve 40 is in the eighth gear, the first reversing valve 10 controls the first port 1 to be connected to the third port 3, the second reversing valve 20 controls the second port 2 to be connected to the fifth port 5, and the fourth reversing valve 40 controls the fourth port 4 to be connected to the sixth port 6. The first indoor heat exchange system is cooling and the second indoor heat exchange system is not working.

[0082] When the first reversing valve 10 is in the eighth gear, the second reversing valve 20 is in the second gear, the third reversing valve 30 is in the first gear, and the fourth reversing valve 40 is in the second gear, the first reversing valve 10 controls the first port 1 to be connected to the seventh port 7, the second reversing valve 20 controls the second port 2 to be connected to the fourth port 4, and the third reversing valve 30 controls the third port 3 to be connected to the eighth port 8. The second indoor heat exchange system is heating, and the first indoor heat exchange system is not working.

[0083] When the first reversing valve 10 is in the second gear, the second reversing valve 20 is in the eighth gear, the third reversing valve 30 is in the second gear, and the fourth reversing valve 40 is in the first gear, the first reversing valve 10 controls the first port 1 to be connected to the third port 3, the second reversing valve 20 controls the second port 2 to be connected to the seventh port 7, and the fourth reversing valve 40 controls the fourth port 4 to be connected to the eighth port 8. The second indoor heat exchange system is cooling, and the first indoor heat exchange system does not work.

[0084] Example 2:

[0085] See attached Figures 11-14Based on the first embodiment, a heat pump air conditioner further includes an air outlet grille 51; the air outlet grille 51 includes a frame 52, a plurality of positive plates 53, a plurality of negative plates 54, and a plurality of separators 55; the positive plates 53, the negative plates 54, and the separators 55 are rotatably connected to the frame 52 at both ends, and the positive plates 53, the negative plates 54, and the separators 55 are always parallel; the positive plates 53 and the negative plates 54 are arranged in pairs, with the same pair of positive plates 53 and negative plates 54 adjacent to each other, and separators 55 are provided between different pairs of positive plates 53 and negative plates 54; the upper surface of the separators 55 is provided with a strip groove 56; a strip sponge 57 is embedded in the strip groove 56; the bottom of the strip sponge 57 is provided with a strip cavity 58; the front end of the separator 55 is provided with a rubber cover 59; one side of the rubber cover 59 contacts the strip groove 56 and the other side contacts the outside. As can be seen from the above structure, the frame 52 is used to fix the indoor air outlet and provide support. The positive plate 53, negative plate 54, and separator 55 are all rotatably connected to the frame 52 at both ends. The positive plate 53, negative plate 54, and separator 55 are always parallel. Therefore, the direction of the airflow at the air outlet can be achieved by synchronously rotating the positive plate 53, negative plate 54, and separator 55. In other words, the positive plate 53, negative plate 54, and separator 55 act as blades, or in other words, the blades are transformed into the positive plate 53, negative plate 54, and separator 55. The positive and negative plates 53, 54 are arranged in pairs. The same pair of positive and negative plates 53, 54 are adjacent, and a separator 55 is provided between different pairs of positive and negative plates 53, 54. Therefore, the blade arrangement from top to bottom is negative plate 54 - positive plate 53 - separator 55 - negative plate 54 - positive plate 53 - separator 55 - negative plate 54 - positive plate 53, and so on. The positive and negative plates 53, 54 are used to pass high voltage, generating plasma between the positive and negative plates 53, 54, thereby sterilizing the air being blown out, meeting individual needs. Since the blades are converted into plasma devices, they do not occupy additional space in the indoor unit, saving space. Furthermore, they fully disinfect the air along its path. The long, rectangular shape of the blades allows for the generation of a wider range of plasma, resulting in more thorough disinfection. If placed inside the indoor unit, they would not generate the same amount of plasma as long, rectangular blades. The separator 55 is used to separate different pairs of positive plates 53 and negative plates 54 so that plasma is ignited only between the pairs of positive plates 53 and negative plates 54 .

[0086] The top surface of the isolation plate 55 is provided with a strip-shaped groove 56. Embedded within this groove 56 is a removable strip sponge 57, which absorbs the water, perfume, or other odorous liquid contained within the groove 56. This allows the air from the air outlet to humidify or add fragrance to the room without requiring additional humidification or odorization equipment within the indoor unit, saving space and meeting individual needs. Furthermore, because the strip sponge 57 is long and runs the length of the blades, the efficiency of humidification or odorization is greatly improved. If placed within the interior of the indoor unit, it would not be able to evaporate water or odorous liquid over a large area. A strip-shaped cavity 58 is located at the bottom of the strip sponge 57, providing a retention space for water or odorous liquid. The strip sponge 57 also allows the water or odorous liquid to be continuously dissipated. A rubber cover 59 is provided at the front end of the isolation plate 55. One side of the rubber cover 59 contacts the strip groove 56, while the other side is exposed to the outside world. When water or scent liquid needs to be added, it is only necessary to insert a needle into the rubber cover 59 and fill the water or scent liquid between the strip groove 56 and the strip cavity 58. Then, the needle is pulled out. Due to the self-sealing property of the rubber cover 59, the water or scent liquid can be locked between the strip groove 56 and the strip cavity 58.

[0087] The air outlet grille 51 also includes an angle adjustment device; the angle adjustment device is used to drive the positive plate 53, the negative plate 54, and the isolation plate 55 to flip synchronously; the angle adjustment device includes an angle adjustment motor 61, a connecting handle 62, a driving column 63, a driving plate 64 and two connecting plates 65; the angle adjustment motor 61 is fixed to the frame 52, and the output end of the angle adjustment motor 61 is fixed to one end of the connecting handle 62; the other end of the connecting handle 62 is fixed with a driving column 63; the driving column 63 penetrates The drive plate 64 is provided with a horizontally disposed waist-shaped hole 66; the drive plate 64 is fixed to one of the connecting plates 65; the positive plate 53, the negative plate 54, and the separator 55 are each rotatably connected to a connecting plate 65 at both ends; in the same pair of positive and negative plates 53, 54, the negative plate 54 is located on the upper side and the positive plate 53 is located on the lower side, and when the positive and negative plates 53, 54 are in a horizontal position, the front end of the positive plate 53 extends beyond the front end of the negative plate 54, and the rear end of the negative plate 54 extends beyond the rear end of the positive plate 53. As can be seen from the above structure, when the air outlet direction needs to be changed, the angle adjustment motor 61 drives the connecting handle 62 to cause the drive column 63 to move in a circular motion. The waist-shaped hole 66 provides a clearance space for the drive column 63 to move in a circular motion. Therefore, when the drive column 63 moves in a circular motion, it drives the drive plate 64 and the connecting plate 65 to move approximately up and down, thereby causing the positive plate 53, the negative plate 54, and the separator 55 to flip synchronously to change the air direction. Because plasma excitation requires controlled spacing between the negative and positive plates 54, 53, an angle adjustment device is used to drive the synchronous rotation of the positive, negative, and separator plates 55, changing the spacing between the negative and positive plates 54, 53. Therefore, the angle adjustment device can be used to drive the positive and negative plates 53, 54 to a spacing suitable for plasma excitation. When the negative plate 54 is positioned above and the positive plate 53 is positioned below, and the two plates are horizontal, the front end of the positive plate 53 extends beyond the front end of the negative plate 54, and the rear end of the negative plate 54 extends beyond the rear end of the positive plate 53. This allows the negative and positive plates 54, 53 to increase their facing area during synchronous deflection, thereby stimulating more plasma. When the facing area of ​​the negative and positive plates 54, 53 is maximized during deflection, the negative and positive plates 54, 53 reach the spacing suitable for plasma excitation.

[0088] Example 3:

[0089] Based on the first embodiment, a heat pump air conditioner further includes a third heat exchange system; the third heat exchange system includes a third indoor heat exchanger, a third electronic expansion valve, a first stop valve, a second stop valve, a third stop valve, and a fourth stop valve; the fifth port 5 and the seventh port 7 are connected to one end of the third indoor heat exchanger through the first stop valve and the second stop valve, respectively; the other end of the third indoor heat exchanger is connected to the third electronic expansion valve; the third electronic expansion valve is connected to the sixth port 6 and the eighth port 8 through the third stop valve and the fourth stop valve, respectively. As can be seen from the above structure, when the third heat exchange system needs to be in the same cooling or heating mode as the first heat exchange system, the first stop valve and the third stop valve are opened to connect the third heat exchange system in parallel with the first heat exchange system; when the third heat exchange system needs to be in the same cooling or heating mode as the second heat exchange system, the second stop valve and the fourth stop valve are opened to connect the third heat exchange system in parallel with the second heat exchange system. Therefore, the present invention is not limited to two indoor environments, and can be used with multiple indoor environments, all of which can achieve independent control of cooling and heating.

[0090] Example 4:

[0091] An air conditioning control system includes a controller, a high-voltage direct current power supply, a plurality of control switches 67, valve motors corresponding to the number of reversing valve units 9, and the heat pump air conditioner described in Example 2. The valve motors are used to drive the valve cores 902 of the corresponding reversing valve units 9 to rotate. The positive electrode of the high-voltage direct current power supply is electrically connected to each positive electrode plate 53 via a control switch 67, and the negative electrode of the high-voltage direct current power supply is electrically connected to each negative electrode plate 54 via a control switch 67. The first indoor heat exchange system and the second indoor heat exchange system each include a crossflow fan. The outdoor heat exchange system also includes an outdoor fan. The control switch 67, valve motor, angle adjustment motor 61, first electronic expansion valve 12, second electronic expansion valve 22, crossflow fan, outdoor fan, and compressor 31 are each electrically connected to the controller. As can be seen from the above structure, the controller can selectively activate plasma generation with a pair of positive and negative plates 53, 54, or with all pairs of positive and negative plates 53, 54 by turning the control switch 67 on and off. This selection is made based on the size of the room to save electricity. The controller controls the valve motors of the first, second, third, and fourth reversing valves 10, 20, 30, and 40 to rotate the corresponding valve cores 902, thereby switching the gears of the first, second, third, and fourth reversing valves 10, 20, 30, and 40. The controller also controls the angle adjustment motor 61 to flip the blades formed by the positive plate 53, negative plate 54, and separator plate 55, adjusting the airflow direction and positioning the positive and negative plates 53, 54 at the plasma-stimulating distance. The controller also controls the operation of the first and second electronic expansion valves 12, 22, crossflow blower, outdoor fan, and compressor 31. The first and second electronic expansion valves 12, 22 are used to expand and cool the refrigerant, while the crossflow blower is used to blow heat or cold air from the corresponding heat exchanger out of the air outlet. The outdoor fan blows air to the outdoor heat exchanger. The compressor 31 provides power for the refrigerant.

[0092] Embodiment 5:

[0093] An air conditioning control method, using the air conditioning control system described in Example 4, comprising the steps of simultaneously heating a first indoor heat exchange system and a second indoor heat exchange system, simultaneously cooling the first indoor heat exchange system and the second indoor heat exchange system, cooling the first indoor heat exchange system while heating it, cooling the first indoor heat exchange system while heating it, heating the second indoor heat exchange system while the first indoor heat exchange system is not in operation, cooling the second indoor heat exchange system while the first indoor heat exchange system is not in operation, heating the first indoor heat exchange system while the second indoor heat exchange system is not in operation, cooling the first indoor heat exchange system while the second indoor heat exchange system is not in operation, and plasma sterilization.

[0094] The specific step of simultaneously heating the first indoor heat exchange system and the second indoor heat exchange system is as follows: the controller controls the first electronic expansion valve 12, the second electronic expansion valve 22, the cross flow fan, the outdoor fan, and the compressor 31 to work, and at the same time, the controller controls the valve motor to drive the corresponding valve core 902 to rotate to a specified position, so that the seventh position port 97, the eighth position port 98, the first position port 91 and the fourth position port 94 of the first reversing valve 10 are connected, the fifth position port 95, the sixth position port 96, the seventh position port 97 and the second position port 92 of the second reversing valve 20 are connected, the seventh position port 97, the eighth position port 98, the first position port 91 and the fourth position port 94 of the third reversing valve 30 are connected, and the fifth position port 95, the sixth position port 96, the seventh position port 97 and the second position port 92 of the fourth reversing valve 40 are connected. The seventh port 97 and the second port 92 are connected; thus, the first reversing valve 10 controls the first port 1 to communicate with the fifth port 5 and the seventh port 7, the second reversing valve 20 controls the second port 2 to communicate with the fourth port 4, and the third reversing valve 30 controls the third port 3 to communicate with the sixth port 6 and the eighth port 8. The refrigerant path is: compressor 31-first port 1-fifth port 5 (seventh port 7)-first indoor heat exchanger 11 (second indoor heat exchanger 21)-first electronic expansion valve 12 (second electronic expansion valve 22)-sixth port 6 (eighth port 8)-third port 3-outdoor heat exchanger 41-fourth port 4-second port 2-compressor 31. The first indoor heat exchange system and the second indoor heat exchange system heat simultaneously.

[0095] The step of simultaneously cooling the first indoor heat exchange system and the second indoor heat exchange system is specifically as follows: the controller controls the first electronic expansion valve 12, the second electronic expansion valve 22, the cross flow fan, the outdoor fan, and the compressor 31 to work, and at the same time, the controller controls the valve motor to drive the corresponding valve core 902 to rotate to a specified position, so that the fifth position port 95, the sixth position port 96, the seventh position port 97, and the second position port 92 of the first reversing valve 10 are connected, the seventh position port 97, the eighth position port 98, the first position port 91, and the fourth position port 94 of the second reversing valve 20 are connected, the fifth position port 95, the sixth position port 96, the seventh position port 97, and the second position port 92 of the third reversing valve 30 are connected, and the seventh position port 97, the eighth position port 98, the first position port 91, and the fourth position port 94 of the fourth reversing valve 40 are connected. The first port 91 and the fourth port 94 are connected; thus, the first reversing valve 10 controls the first port 1 to be connected to the third port 3, the second reversing valve 20 controls the second port 2 to be connected to the fifth port 5 and the seventh port 7, and the fourth reversing valve 40 controls the fourth port 4 to be connected to the sixth port 6 and the eighth port 8. The refrigerant path is: compressor 31 - first port 1 - third port 3 - outdoor heat exchanger 41 - fourth port 4 - sixth port 6 (eighth port 8) - first electronic expansion valve 12 (second electronic expansion valve 22) - first indoor heat exchanger 11 (second indoor heat exchanger 21) - fifth port 5 (seventh port 7) - second port 2 - compressor 31. The first indoor heat exchange system and the second indoor heat exchange system are cooled simultaneously.

[0096] The specific steps of cooling the second indoor heat exchange system and heating the first indoor heat exchange system are as follows: the controller controls the first electronic expansion valve 12, the second electronic expansion valve 22, the cross-flow fan, the outdoor fan, and the compressor 31 to work, and at the same time, the controller controls the valve motor to drive the corresponding valve core 902 to rotate to a specified position, so that the fourth position port 94, the fifth position port 95, the sixth position port 96 and the first position port 91 of the first reversing valve 10 are connected, the third position port 93, the fourth position port 94, the fifth position port 95 and the eighth position port 98 of the second reversing valve 20 are connected, the third position port 93, the fourth position port 94, the fifth position port 95 and the eighth position port 98 of the third reversing valve 30 are connected, and the fourth position port 94, the fifth position port 95, the sixth position port 96 of the fourth reversing valve 40 are connected. 96 and the first port 91 are connected; thus, the first reversing valve 10 controls the first port 1 to be connected to the fifth port 5, the second reversing valve 20 controls the second port 2 to be connected to the seventh port 7, the third reversing valve 30 controls the third port 3 to be connected to the sixth port 6, and the fourth reversing valve 40 controls the fourth port 4 to be connected to the eighth port 8. The refrigerant path is: compressor 31-first port 1-fifth port 5-first indoor heat exchanger 11-first electronic expansion valve 12-sixth port 6-third port 3-outdoor heat exchanger 41-fourth port 4-eighth port 8-second electronic expansion valve 22-second indoor heat exchanger 21-seventh port 7-second port 2-compressor 31. The second indoor heat exchange system is cooling and the first indoor heat exchange system is heating.

[0097] The specific steps of cooling the first indoor heat exchange system and heating the second indoor heat exchange system are as follows: the controller controls the first electronic expansion valve 12, the second electronic expansion valve 22, the cross-flow fan, the outdoor fan, and the compressor 31 to work, and at the same time, the controller controls the valve motor to drive the corresponding valve core 902 to rotate to a specified position, so that the third position port 93, the fourth position port 94, the fifth position port 95 and the eighth position port 98 of the first reversing valve 10 are connected, the fourth position port 94, the fifth position port 95, the sixth position port 96 and the first position port 91 of the second reversing valve 20 are connected, the fourth position port 94, the fifth position port 95, the sixth position port 96 and the first position port 91 of the third reversing valve 30 are connected, and the third position port 93, the fourth position port 94, the fifth position port 95 and the sixth position port 96 of the fourth reversing valve 40 are connected. 95 and the eighth port 98 are connected; thus, the first reversing valve 10 controls the communication between the first port 1 and the seventh port 7, the second reversing valve 20 controls the communication between the second port 2 and the fifth port 5, the third reversing valve 30 controls the communication between the third port 3 and the eighth port 8, and the fourth reversing valve 40 controls the communication between the fourth port 4 and the sixth port 6. The refrigerant path is: compressor 31-first port 1-seventh port 7-second indoor heat exchanger 21-second electronic expansion valve 22-eighth port 8-third port 3-outdoor heat exchanger 41-fourth port 4-sixth port 6-first electronic expansion valve 12-first indoor heat exchanger 11-fifth port 5-second port 2-compressor 31. The first indoor heat exchange system is cooling and the second indoor heat exchange system is heating.

[0098] The specific steps of heating the first indoor heat exchange system and not working the second indoor heat exchange system are as follows: the controller controls the first electronic expansion valve 12, the cross-flow fan, the outdoor fan, and the compressor 31 of the first indoor heat exchange system to work, and at the same time, the controller controls the valve motor to drive the corresponding valve core 902 to rotate to a specified position, so that the fourth position port 94, the fifth position port 95, the sixth position port 96 and the first position port 91 of the first reversing valve 10 are connected, the fifth position port 95, the sixth position port 96, the seventh position port 97 and the second position port 92 of the second reversing valve 20 are connected, the third position port 93, the fourth position port 94, the fifth position port 95 and the eighth position port 98 of the third reversing valve 30 are connected, and the fifth position port 95, the sixth position port 96, the seventh position port 97 and the second position port 92 of the fourth reversing valve 40 are connected. ; Thus, the first reversing valve 10 controls the first port 1 to be connected with the fifth port 5, the second reversing valve 20 controls the second port 2 to be connected with the fourth port 4, and the third reversing valve 30 controls the third port 3 to be connected with the sixth port 6. The refrigerant path is: compressor 31-first port 1-fifth port 5-first indoor heat exchanger 11-first electronic expansion valve 12-sixth port 6-third port 3-outdoor heat exchanger 41-fourth port 4-second port 2-compressor 31. The first indoor heat exchange system heats the second indoor heat exchange system and the second indoor heat exchange system does not work. When the second indoor heat exchange system is not working, no working refrigerant will enter the second indoor heat exchange system, avoiding a temperature difference between the temperature of the second indoor heat exchange system and the room temperature, thereby ensuring accurate temperature regulation when the second indoor heat exchange system is started.

[0099] The specific steps of cooling the first indoor heat exchange system and not working the second indoor heat exchange system are as follows: the controller controls the first electronic expansion valve 12, the cross-flow fan, the outdoor fan and the compressor 31 of the first indoor heat exchange system to work, and at the same time the controller controls the valve motor to drive the corresponding valve core 902 to rotate to a specified position, so that the fifth position port 95, the sixth position port 96, the seventh position port 97 and the second position port 92 of the first reversing valve 10 are connected, the fourth position port 94, the fifth position port 95, the sixth position port 96 and the first position port 91 of the first reversing valve 10 are connected, the fifth position port 95, the sixth position port 96, the seventh position port 97 and the second position port 92 of the third reversing valve 30 are connected, and the third position port 93, the fourth position port 94, the fifth position port 95 and the eighth position port 98 of the fourth reversing valve 40 are connected. ; Thus, the first reversing valve 10 controls the first port 1 to be connected to the third port 3, the second reversing valve 20 controls the second port 2 to be connected to the fifth port 5, and the fourth reversing valve 40 controls the fourth port 4 to be connected to the sixth port 6. The refrigerant path is: compressor 31-first port 1-third port 3-outdoor heat exchanger 41-fourth port 4-sixth port 6-first electronic expansion valve 12-first indoor heat exchanger 11-fifth port 5-second port 2-compressor 31. The first indoor heat exchange system cools the second indoor heat exchange system and does not work. When the second indoor heat exchange system is not working, no working refrigerant will enter the second indoor heat exchange system, avoiding a temperature difference between the temperature of the second indoor heat exchange system and the room temperature, thereby ensuring accurate temperature regulation when the second indoor heat exchange system is started.

[0100] The specific steps of heating the first indoor heat exchange system by the second indoor heat exchange system when the first indoor heat exchange system is not working are as follows: the controller controls the second electronic expansion valve 22, the cross-flow fan, the outdoor fan and the compressor 31 of the second indoor heat exchange system to work, and at the same time the controller controls the valve motor to drive the corresponding valve core 902 to rotate to a specified position, so that the third position port 93, the fourth position port 94, the fifth position port 95 and the eighth position port 98 of the first reversing valve 10 are connected, the fifth position port 95, the sixth position port 96, the seventh position port 97 and the second position port 92 of the second reversing valve 20 are connected, the fourth position port 94, the fifth position port 95, the sixth position port 96 and the first position port 91 of the third reversing valve 30 are connected, and the fifth position port 95, the sixth position port 96, the seventh position port 97 and the second position port 92 of the fourth reversing valve 40 are connected. ; Thus, the first reversing valve 10 controls the first port 1 to be connected with the seventh port 7, the second reversing valve 20 controls the second port 2 to be connected with the fourth port 4, and the third reversing valve 30 controls the third port 3 to be connected with the eighth port 8, then the refrigerant path is: compressor 31-first port 1-seventh port 7-second indoor heat exchanger 21-second electronic expansion valve 22-eighth port 8-third port 3-outdoor heat exchanger 41-fourth port 4-second port 2-compressor 31, the second indoor heat exchange system heats the first indoor heat exchange system and the first indoor heat exchange system does not work; when the first indoor heat exchange system is not working, no working refrigerant will enter the second indoor heat exchange system, avoiding the temperature difference between the temperature of the first indoor heat exchange system and the room temperature, and ensuring the accuracy of temperature regulation when the first indoor heat exchange system is started.

[0101] The specific steps of the second indoor heat exchange system cooling the first indoor heat exchange system are as follows: the controller controls the second electronic expansion valve 22, the cross-flow fan, the outdoor fan and the compressor 31 of the second indoor heat exchange system to work, and at the same time the controller controls the valve motor to drive the corresponding valve core 902 to rotate to a specified position, so that the fifth position port 95, the sixth position port 96, the seventh position port 97 and the second position port 92 of the first reversing valve 10 are connected, the third position port 93, the fourth position port 94, the fifth position port 95 and the eighth position port 98 of the second reversing valve 20 are connected, the fifth position port 95, the sixth position port 96, the seventh position port 97 and the second position port 92 of the third reversing valve 30 are connected, and the fourth position port 94, the fifth position port 95, the sixth position port 96 and the first position port 91 of the fourth reversing valve 40 are connected. ; Thus, the first reversing valve 10 controls the first port 1 to be connected to the third port 3, the second reversing valve 20 controls the second port 2 to be connected to the seventh port 7, and the fourth reversing valve 40 controls the fourth port 4 to be connected to the eighth port 8, then the refrigerant path is: compressor 31-first port 1-third port 3-outdoor heat exchanger 41-fourth port 4-eighth port 8-second electronic expansion valve 22-second indoor heat exchanger 21-seventh port 7-second port 2-compressor 31, then the second indoor heat exchange system cools the first indoor heat exchange system and the first indoor heat exchange system does not work; when the first indoor heat exchange system is not working, no working refrigerant will enter the second indoor heat exchange system, avoiding the temperature difference between the temperature of the first indoor heat exchange system and the room temperature, and ensuring the accuracy of temperature regulation when the first indoor heat exchange system is started.

[0102] The plasma sterilization steps are specifically as follows: the controller controls the operation of the cross-flow blower, the controller controls the angle adjustment motor 61 to adjust the positive plate 53, the negative plate 54, and the isolation plate 55 to synchronously flip until the front and rear ends of the positive plate 53 and the negative plate 54 are flush, the controller controls some or all of the control switches 67 corresponding to the positive plates 53 and the negative plates 54 to be closed, and the high-voltage DC power supply provides a voltage difference between the positive plate 53 and the negative plate 54 when the control switch 67 is closed, so that plasma is excited between the positive plate 53 and the negative plate 54 when the control switch 67 is closed, and the plasma sterilizes the air blown out by the cross-flow blower.

[0103] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A heat pump air conditioner comprising a first indoor heat exchange system, a second indoor heat exchange system, a compression system, and an outdoor heat exchange system, characterized in that: The invention also includes a reversing system; the reversing system is used to change the order and direction of the refrigerant output from the compression system in the first indoor heat exchange system, the second indoor heat exchange system, and the outdoor heat exchange system, so that when the first indoor heat exchange system selects cooling or heating or does not work, the second indoor heat exchange system independently selects cooling or heating or does not work; the reversing system includes a shell, a reversing device arranged in the shell, and a first port (1), a second port (2), a third port (3), a fourth port (4), a fifth port (5), a sixth port (6), a seventh port (7), and an eighth port (8) arranged on the shell and connected to the reversing device; the first indoor heat exchange system includes a first indoor heat exchanger (11) and a first electronic expansion valve (1 2); the fifth port (5), the first indoor heat exchanger (11), the first electronic expansion valve (12), and the sixth port (6) are connected in sequence; the second indoor heat exchange system includes a second indoor heat exchanger (21) and a second electronic expansion valve (22); the seventh port (7), the second indoor heat exchanger (21), the second electronic expansion valve (22), and the eighth port (8) are connected in sequence; the compression system includes a compressor (31); the outlet of the compressor (31) is connected to the first port (1), and the inlet of the compressor (31) is connected to the second port (2); the outdoor heat exchange system includes an outdoor heat exchanger (41); the third port (3), the outdoor heat exchanger (41), and the fourth port (4) are connected in sequence.

2. A heat pump air conditioner according to claim 1, characterized in that: The reversing device comprises a first reversing valve (10), a second reversing valve (20), a third reversing valve (30), and a fourth reversing valve (40); the first reversing valve (10) is connected to the first port (1), the third port (3), the fifth port (5), and the seventh port (7), respectively, and is used to control the on-off of the first port (1) and the third port (3), the fifth port (5), and the seventh port (7); the second reversing valve (20) is connected to the second port (2), the fourth port (4), the fifth port (5), and the seventh port (7), respectively. , used to control the on-off of the second port (2) and the fourth port (4), the fifth port (5), and the seventh port (7); the third reversing valve (30) is connected to the third port (3), the sixth port (6), and the eighth port (8) respectively, and is used to control the on-off of the third port (3) and the sixth port (6), and the eighth port (8); the fourth reversing valve (40) is connected to the fourth port (4), the sixth port (6), and the eighth port (8) respectively, and is used to control the on-off of the fourth port (4) and the sixth port (6), and the eighth port (8).

3. A heat pump air conditioner according to claim 2, characterized in that: The first reversing valve (10), the second reversing valve (20), the third reversing valve (30), and the fourth reversing valve (40) all include a reversing valve unit (9); the reversing valve unit (9) includes a valve housing (901) with a cylindrical cavity therein and a valve core (902) matching the cylindrical cavity; eight ports are arranged around and evenly spaced on the outer wall of the valve housing (901), and are arranged in clockwise order from zero degrees as a first port (91), a second port (92), a third port (93), a fourth port (94), a fifth port (95), a sixth port (96), a seventh port (97), and an eighth port (98); the valve core (902) is rotated so that any three consecutive ports are connected to the port directly opposite the middle port among the three consecutive ports, and the remaining ports are closed.

4. A heat pump air conditioner according to claim 3, characterized in that: The first port (91), the second port (92), and the eighth port (98) of the first reversing valve (10) are connected to the fifth port (5), the third port (3), and the seventh port (7), respectively, and the remaining ports are connected to the first port (1); the first port (91), the second port (92), and the eighth port (98) of the second reversing valve (20) are connected to the fifth port (5), the fourth port (4), and the seventh port (7), respectively, and the remaining ports are connected to the second port (2); the first port (91) and the eighth port (98) of the third reversing valve (30) are connected to the eighth port (8) and the sixth port (6), respectively, and the remaining ports are connected to the third port (3); the first port (91) and the eighth port (98) of the fourth reversing valve (40) are connected to the eighth port (8) and the sixth port (6), respectively, and the remaining ports are connected to the fourth port (4).

5. A heat pump air conditioner according to claim 4, characterized in that: The air outlet grille (51) is also included; the air outlet grille (51) includes a frame (52), a plurality of positive plates (53), a plurality of negative plates (54), and a plurality of separators (55); the left and right ends of the positive plates (53), the negative plates (54), and the separators (55) are rotatably connected to the frame (52), and the positive plates (53), the negative plates (54), and the separators (55) are always parallel; the positive plates (53) and the negative plates (54) are arranged in pairs, and the same pair of positive plates (53) and the negative electrode plate (54) are adjacent, and a separator (55) is provided between different pairs of positive electrode plates (53) and negative electrode plates (54); a strip groove (56) is provided on the upper surface of the separator (55); a strip sponge (57) is embedded in the strip groove (56); a strip cavity (58) is provided at the bottom of the strip sponge (57); a rubber cover (59) is provided at the front end of the separator (55); one side of the rubber cover (59) contacts the strip groove (56) and the other side contacts the outside.

6. A heat pump air conditioner according to claim 5, characterized in that: The air outlet grille (51) further includes an angle adjustment device; the angle adjustment device is used to drive the positive plate (53), the negative plate (54), and the isolation plate (55) to flip synchronously; the angle adjustment device includes an angle adjustment motor (61), a connecting handle (62), a driving column (63), a driving plate (64), and two connecting plates (65); the angle adjustment motor (61) is fixed to the frame (52), and the output end of the angle adjustment motor (61) is fixed to one end of the connecting handle (62); the other end of the connecting handle (62) is fixed with a driving column (63); the driving column (63) penetrates the driving column (64) and the driving column (63) The plate (64) is provided with a horizontally arranged waist-shaped hole (66); the driving plate (64) is fixed to one of the connecting plates (65); the left and right ends of the positive plate (53), the negative plate (54), and the isolation plate (55) are respectively rotatably connected to a connecting plate (65); in the same pair of positive plates (53) and negative plates (54), the negative plate (54) is located on the upper side and the positive plate (53) is located on the lower side, and when the positive plate (53) and the negative plate (54) are in a horizontal position, the front end of the positive plate (53) exceeds the front end of the negative plate (54), and the rear end of the negative plate (54) exceeds the rear end of the positive plate (53).

7. A heat pump air conditioner according to claim 6, characterized in that: The invention also includes a third heat exchange system; the third heat exchange system includes a third indoor heat exchanger, a third electronic expansion valve, a first stop valve, a second stop valve, a third stop valve and a fourth stop valve; the fifth port (5) and the seventh port (7) are connected to one end of the third indoor heat exchanger through the first stop valve and the second stop valve respectively; the other end of the third indoor heat exchanger is connected to the third electronic expansion valve; the third electronic expansion valve is connected to the sixth port (6) and the eighth port (8) through the third stop valve and the fourth stop valve respectively.

8. An air conditioning control system, characterized in that: The heat pump air conditioner comprises a controller, a high-voltage direct current power supply, a plurality of control switches (67), valve motors corresponding to the number of reversing valve units (9), and the heat pump air conditioner according to claim 6; the valve motor is used to drive the valve core (902) of the corresponding reversing valve unit (9) to rotate; the positive pole of the high-voltage direct current power supply is electrically connected to each positive plate (53) through a control switch (67), and the negative pole of the high-voltage direct current power supply is electrically connected to each negative plate (54) through a control switch (67); the first indoor heat exchange system and the second indoor heat exchange system also include a cross-flow fan; the outdoor heat exchange system also includes an outdoor fan; the control switch (67), the valve motor, the angle adjustment motor (61), the first electronic expansion valve (12), the second electronic expansion valve (22), the cross-flow fan, the outdoor fan, and the compressor (31) are electrically connected to the controller respectively.

9. An air conditioning control method, characterized in that: The air conditioning control system according to claim 8 comprises the steps of simultaneously heating the first indoor heat exchange system and the second indoor heat exchange system, simultaneously cooling the first indoor heat exchange system and the second indoor heat exchange system, cooling the first indoor heat exchange system while heating the system, cooling the first indoor heat exchange system while heating the system, heating the second indoor heat exchange system while the system is not working, cooling the second indoor heat exchange system while the system is not working, heating the first indoor heat exchange system while the system is not working, cooling the second indoor heat exchange system while the system is not working, and plasma sterilization. The specific steps of simultaneously heating the first indoor heat exchange system and the second indoor heat exchange system are as follows: the controller controls the first electronic expansion valve (12), the second electronic expansion valve (22), the cross-flow fan, the outdoor fan, and the compressor (31) to work, and at the same time, the controller controls the valve motor to drive the corresponding valve core (902) to rotate to a specified position, so that the seventh position port (97), the eighth position port (98), the first position port (91), and the fourth position port (94) of the first reversing valve (10) are connected, the fifth position port (95), the sixth position port (96), the seventh position port (97), and the second position port (92) of the second reversing valve (20) are connected, the seventh position port (97), the eighth position port (98), the first position port (91), and the fourth position port (94) of the third reversing valve (30) are connected, and the fifth position port (95), the sixth position port (96), the seventh position port (97), and the second position port (92) of the fourth reversing valve (40) are connected; The specific steps of the first indoor heat exchange system and the second indoor heat exchange system simultaneously cooling are as follows: the controller controls the first electronic expansion valve (12), the second electronic expansion valve (22), the cross-flow fan, the outdoor fan, and the compressor (31) to work, and at the same time, the controller controls the valve motor to drive the corresponding valve core (902) to rotate to a specified position, so that the fifth position port (95), the sixth position port (96), the seventh position port (97), and the second position port (92) of the first reversing valve (10) are connected, the seventh position port (97), the eighth position port (98), the first position port (91), and the fourth position port (94) of the second reversing valve (20) are connected, the fifth position port (95), the sixth position port (96), the seventh position port (97), and the second position port (92) of the third reversing valve (30) are connected, and the seventh position port (97), the eighth position port (98), the first position port (91), and the fourth position port (94) of the fourth reversing valve (40) are connected; The second indoor heat exchange system cools and the first indoor heat exchange system heats in the following steps: the controller controls the first electronic expansion valve (12), the second electronic expansion valve (22), the cross-flow fan, the outdoor fan, and the compressor (31) to operate, and at the same time, the controller controls the valve motor to drive the corresponding valve core (902) to rotate to a specified position, so that the fourth position port (94), the fifth position port (95), the sixth position port (96) and the first position port (91) of the first reversing valve (10) are connected, the third position port (93), the fourth position port (94), the fifth position port (95) and the eighth position port (98) of the second reversing valve (20) are connected, the third position port (93), the fourth position port (94), the fifth position port (95) and the eighth position port (98) of the third reversing valve (30) are connected, and the fourth position port (94), the fifth position port (95), the sixth position port (96) and the first position port (91) of the fourth reversing valve (40) are connected; The first indoor heat exchange system cools and the second indoor heat exchange system heats in the following steps: the controller controls the first electronic expansion valve (12), the second electronic expansion valve (22), the cross-flow fan, the outdoor fan, and the compressor (31) to work, and at the same time, the controller controls the valve motor to drive the corresponding valve core (902) to rotate to a specified position, so that the third position port (93), the fourth position port (94), the fifth position port (95), and the eighth position port (98) of the first reversing valve (10) are connected, the fourth position port (94), the fifth position port (95), the sixth position port (96), and the first position port (91) of the second reversing valve (20) are connected, the fourth position port (94), the fifth position port (95), the sixth position port (96), and the first position port (91) of the third reversing valve (30) are connected, and the third position port (93), the fourth position port (94), the fifth position port (95), and the eighth position port (98) of the fourth reversing valve (40) are connected; The specific steps of heating the first indoor heat exchange system while the second indoor heat exchange system is not working are as follows: the controller controls the first electronic expansion valve (12), the cross-flow fan, the outdoor fan, and the compressor (31) of the first indoor heat exchange system to work, and at the same time, the controller controls the valve motor to drive the corresponding valve core (902) to rotate to a specified position, so that the fourth position port (94), the fifth position port (95), the sixth position port (96), and the first position port (91) of the first reversing valve (10) are connected, the fifth position port (95), the sixth position port (96), the seventh position port (97), and the second position port (92) of the second reversing valve (20) are connected, the third position port (93), the fourth position port (94), the fifth position port (95), and the eighth position port (98) of the third reversing valve (30) are connected, and the fifth position port (95), the sixth position port (96), the seventh position port (97), and the second position port (92) of the fourth reversing valve (40) are connected; The specific steps of cooling the first indoor heat exchange system and not operating the second indoor heat exchange system are as follows: the controller controls the first electronic expansion valve (12), the cross-flow fan, the outdoor fan, and the compressor (31) of the first indoor heat exchange system to operate, and at the same time, the controller controls the valve motor to drive the corresponding valve core (902) to rotate to a specified position, so that the fifth position port (95), the sixth position port (96), the seventh position port (97), and the second position port (92) of the first reversing valve (10) are connected, the fourth position port (94), the fifth position port (95), the sixth position port (96), and the first position port (91) of the first reversing valve (10) are connected, the fifth position port (95), the sixth position port (96), the seventh position port (97), and the second position port (92) of the third reversing valve (30) are connected, and the third position port (93), the fourth position port (94), the fifth position port (95), and the eighth position port (98) of the fourth reversing valve (40) are connected; The specific steps of heating the first indoor heat exchange system by the second indoor heat exchange system are as follows: the controller controls the second electronic expansion valve (22), the cross-flow fan, the outdoor fan, and the compressor (31) of the second indoor heat exchange system to operate, and at the same time, the controller controls the valve motor to drive the corresponding valve core (902) to rotate to a specified position, so that the third position port (93), the fourth position port (94), the fifth position port (95), and the eighth position port (98) of the first reversing valve (10) are connected, the fifth position port (95), the sixth position port (96), the seventh position port (97), and the second position port (92) of the second reversing valve (20) are connected, the fourth position port (94), the fifth position port (95), the sixth position port (96), and the first position port (91) of the third reversing valve (30) are connected, and the fifth position port (95), the sixth position port (96), the seventh position port (97), and the second position port (92) of the fourth reversing valve (40) are connected; The specific steps of cooling the first indoor heat exchange system by the second indoor heat exchange system are as follows: the controller controls the second electronic expansion valve (22), the cross-flow fan, the outdoor fan, and the compressor (31) of the second indoor heat exchange system to operate, and at the same time, the controller controls the valve motor to drive the corresponding valve core (902) to rotate to a specified position, so that the fifth position port (95), the sixth position port (96), the seventh position port (97) and the second position port (92) of the first reversing valve (10) are connected, the third position port (93), the fourth position port (94), the fifth position port (95) and the eighth position port (98) of the second reversing valve (20) are connected, the fifth position port (95), the sixth position port (96), the seventh position port (97) and the second position port (92) of the third reversing valve (30) are connected, and the fourth position port (94), the fifth position port (95), the sixth position port (96) and the first position port (91) of the fourth reversing valve (40) are connected; The plasma sterilization step is specifically as follows: the controller controls the cross-flow blower to operate, the controller controls the angle adjustment motor (61) to adjust the positive plate (53), the negative plate (54), and the isolation plate (55) to be synchronously flipped until the front and rear ends of the positive plate (53) and the negative plate (54) are flush, the controller controls the control switches (67) corresponding to some or all of the positive plates (53) and the negative plates (54) to be closed, the high-voltage DC power supply provides a voltage difference between the positive plate (53) and the negative plate (54) when the control switch (67) is closed, so that plasma is excited between the positive plate (53) and the negative plate (54) when the control switch (67) is closed, and the plasma sterilizes the air blown out of the cross-flow blower.

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