Control method of purifying and heating all-in-one machine and purifying and heating all-in-one machine

Abstract

The invention discloses a control method of a purifying and heating all-in-one machine and the purifying and heating all-in-one machine. The control method comprises the steps that S1, the standby time length of the air purifying and heating all-in-one machine is obtained; s2, comparing the standby time length with a preset time length, judging whether the standby time length is greater than or equal to the preset time length, and if not, executing the step S1 again; if yes, executing the step S3; s3, detecting the current position of purified water in the purified water tank; step S4, comparing the current position of the purified water in the water purifying tank with the preset low water level of the purified water in the water purifying tank, judging whether the current position of the purified water in the water purifying tank is lower than the preset low water level of the purified water in the water purifying tank, and if not, executing step S5; if yes, the purifying and heating all-in-one machine enters a water production mode; and S5, controlling the drainage device to start working, so that the purified water in the purified water tank flows back to the raw water tank. According to the water purification tank, bacteria breeding in the water purification tank due to excessive pure water which is not used for a long time can be avoided, so that the quality of the pure water is improved, and the experience feeling of a user is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of water purification equipment, and in particular to a control method for a water purification and heat all-in-one machine and a water purification and heat all-in-one machine. Background Art

[0002] The integrated water purifier and heat machine is a new type of water purifier that combines water purification and heating functions. The main working process of the current integrated water purifier and heat machine is as follows: the water in the raw water tank is pressurized by a booster pump, and the pressurized water is sent to the filter element for filtration. The filtered water is stored in the clean water tank. When the user needs to use it, the clean water is pumped out of the clean water tank through a pumping device, and then enters the heating body, and then flows out after being heated by the heating body. The integrated water purifier and heat machine heats the clean water flowing through the heating body in an instant heating manner.

[0003] However, if the water purifier and heat all-in-one machine is not used for a long time, especially a desktop one, a large number of bacteria will breed in the water purification tank, affecting the quality of purified water and the user experience. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the defect in the prior art that a large number of bacteria grow in the water purification tank due to the long-term non-use of the all-in-one heat and water purifier, which affects the quality of the purified water and the user experience, and to provide a control method for an all-in-one heat and water purifier and an all-in-one heat and water purifier.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A control method for a heat and water purifier is characterized in that the heat and water purifier comprises a raw water tank and a clean water tank, raw water in the raw water tank is filtered to form clean water which enters the clean water tank for storage, and a drainage device is provided between the clean water tank and the raw water tank; the control method comprises the following steps:

[0007] Step S1, obtaining the standby time of the air conditioner and heat all-in-one machine;

[0008] Step S2, comparing the standby time of the air conditioner and heat integrated machine with the preset time, and determining whether the standby time of the air conditioner and heat integrated machine is greater than or equal to the preset time; if not, executing step S1 again; if yes, executing step S3;

[0009] Step S3, detecting the current position of the clean water in the clean water tank;

[0010] Step S4, comparing the current position of the purified water in the purified water tank with the preset low water level of the purified water in the purified water tank, to determine whether the current position of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank, if not, executing step S5; if so, the purified water and heat integrated machine enters the water making mode;

[0011] Step S5, controlling the drainage device to start working, so that the clean water in the clean water tank flows back into the raw water tank.

[0012] In this technical solution, when the standby time of the air purifier and heat integrated machine is greater than or equal to the preset time, the excess clean water in the clean water tank is pumped back into the original water tank to avoid the breeding of bacteria in the clean water tank due to excessive clean water that has not been used for a long time, thereby improving the quality of clean water and ensuring the user experience.

[0013] Preferably, after step S5, the control method further comprises:

[0014] Step S6, detecting the current position of the clean water in the clean water tank;

[0015] Step S7, determine whether the current position of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank, if not, execute step S5; if so, the purified water and heat integrated machine enters the water making mode, and controls the drainage device to stop working.

[0016] In the present technical solution, when the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank, the drainage device is stopped to ensure that the drainage device only pumps the clean water in the clean water tank back into the raw water tank, while avoiding pumping air back into the raw water tank.

[0017] Preferably, the integrated heat and air purifier further includes a filtering device, a booster pump is provided between the raw water tank and the filtering device, a pumping device is provided between the clean water tank and the liquid outlet, the standby time of the integrated heat and air purifier includes a first standby time of the booster pump and a second standby time of the pumping device, and the step S1 includes: respectively obtaining the first standby time and the second standby time;

[0018] The step S2 includes: comparing the first standby time and the second standby time with the preset time respectively, and determining whether the first standby time and the second standby time are both greater than or equal to the preset time; if not, executing step S1 again; if so, executing step S3.

[0019] In the present technical solution, the first standby time of the booster pump indicates the time during which the booster pump is not working, that is, the time during which the heat and water purification machine does not produce water, and the second standby time of the pumping device indicates the time during which the pumping device is not working, that is, the time during which the heat and water purification machine does not produce liquid. When the first standby time and the second standby time are both greater than or equal to the preset time, that is, when the heat and water purification machine does not produce water and the time during which liquid does not produce are both greater than or equal to the preset time, the excess clean water in the clean water tank is pumped back to the raw water tank, ensuring that the excess clean water in the clean water tank is retained in the clean water tank for a time exceeding the preset time and needs to be pumped back to the raw water tank.

[0020] Preferably, in the water production mode in step S4, the control method includes:

[0021] Step S41, obtaining the current position of the raw water in the raw water tank;

[0022] Step S42, comparing the current position of the raw water in the raw water tank with the preset low water level of the raw water in the raw water tank, to determine whether the current position of the raw water in the raw water tank is lower than the preset low water level of the raw water in the raw water tank, if not, executing step S43; if yes, replenishing the raw water tank with liquid;

[0023] Step S43, controlling the booster pump to start working, so that the raw water in the raw water tank is filtered by the filtering device to form the clean water which enters the clean water tank for storage;

[0024] Step S44, obtaining the current position of the purified water in the purified water tank;

[0025] Step S45, compare the current position of the clean water in the clean water tank with the preset high water level of the clean water in the clean water tank, and determine whether the current position of the clean water in the clean water tank is lower than the preset high water level of the clean water in the clean water tank. If so, execute step S43; if not, control the booster pump to stop working, and the clean water and heat integrated machine enters standby mode.

[0026] In the present technical solution, through the above settings, a specific control method of the heat and water purification machine in the water production mode is given.

[0027] Preferably, the air conditioner and heat all-in-one machine further includes a normal temperature water outlet mode. In the normal temperature water outlet mode, the control method includes:

[0028] Obtain the normal temperature water outlet demand signal;

[0029] Obtaining the current position of the clean water in the clean water tank;

[0030] The current position of the clean water in the clean water tank is compared with the preset low water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank; if not, the pumping device is controlled to start working so that the clean water in the clean water tank is discharged through the liquid outlet; if so, the clean water heater enters the water making mode.

[0031] In the present technical solution, through the above settings, a specific control method of the air conditioner and heat all-in-one machine in the normal temperature water outlet mode is given.

[0032] Preferably, the air conditioner and heat all-in-one machine further includes a heating and water outlet mode. In the heating and water outlet mode, the control method includes:

[0033] Obtaining heating water demand signal;

[0034] Obtaining the current position of the clean water in the clean water tank;

[0035] The current position of the clean water in the clean water tank is compared with the preset low water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank; if not, the pumping device is controlled to start working so that the clean water in the clean water tank is heated by the heating body and then discharged to the liquid outlet; if so, the clean water heater enters the water making mode.

[0036] In the present technical solution, through the above settings, a specific control method of the heat and air purifier in the heating and water outlet mode is given.

[0037] Preferably, the clean water in the clean water tank is heated by the heating body and then discharged to the liquid outlet, and the control method further includes:

[0038] Acquiring a first temperature of the purified water before entering the heating body;

[0039] obtaining a second temperature of the purified water after passing through the heating body;

[0040] The heating body is controlled to adjust the heating power of the heating body according to the first temperature and the second temperature.

[0041] In this technical solution, the heating power of the heating body is adjusted by comparing the first temperature and the second temperature to achieve the water outlet temperature required by the user.

[0042] Preferably, the control method further comprises:

[0043] Obtaining the TDS value of the purified water;

[0044] The TDS value of the purified water is displayed on the interactive interface.

[0045] In the present technical solution, through the above-mentioned setting, it is convenient for users to obtain the TDS value of purified water in the interactive interface.

[0046] A heat and air conditioning all-in-one machine is characterized in that the heat and air conditioning all-in-one machine adopts the control method as described above.

[0047] In the present technical solution, the all-in-one water purifier and heat machine adopts the above-mentioned control method, and can pump excess clean water in the clean water tank back to the original water tank when the standby time of the all-in-one water purifier and heat machine is greater than or equal to the preset time, so as to avoid excessive clean water that has not been used for a long time from breeding bacteria in the clean water tank, thereby improving the quality of clean water and ensuring the user experience.

[0048] Preferably, the volume of the raw water tank is greater than or equal to twice the volume of the clean water tank.

[0049] In the present technical solution, by setting the volume of the raw water tank to be greater than or equal to twice the volume of the clean water tank, it is ensured that there is enough space to accommodate the clean water pumped back from the clean water tank into the raw water tank.

[0050] The positive and progressive effects of the present invention are:

[0051] The present invention pumps excess clean water in the clean water tank back into the original water tank when the standby time of the clean water and heat all-in-one machine is greater than or equal to a preset time, so as to avoid the breeding of bacteria in the clean water tank due to excessive clean water that has not been used for a long time, thereby improving the quality of clean water and ensuring the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 The present invention is a flowchart of a control method of a heat and air conditioning machine according to a preferred embodiment of the present invention.

[0053] Figure 2 The figure is a schematic structural diagram of a heat and air conditioning machine according to a preferred embodiment of the present invention.

[0054] Description of Reference Numerals

[0055] Heat and clean machine 1

[0056] Raw water tank 2

[0057] Low water level detector 21

[0058] Clean water tank 3

[0059] Drainage device 4

[0060] Filter device 5

[0061] Booster pump 6

[0062] Liquid outlet 7

[0063] Pumping device 8

[0064] Heating element 9

[0065] UV sterilizer 10

[0066] Wastewater solenoid valve 11

[0067] Connecting vessel 12

[0068] Low water level float 13

[0069] High water level float 14

[0070] First temperature sensor 15

[0071] Second temperature sensor 16

[0072] Raw water TDS probe 17

[0073] Water purification TDS probe 18

[0074] Check valve 19

[0075] First in-position detector 31

[0076] Second in-position detector 32

[0077] Air chamber 41 DETAILED DESCRIPTION

[0078] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0079] This embodiment provides a control method for a heat and air purifier. The heat and air purifier includes a raw water tank and a clean water tank. The raw water in the raw water tank is filtered to form clean water that enters the clean water tank for storage. A drainage device is provided between the clean water tank and the raw water tank. The flow chart of the control method for the heat and air purifier of this embodiment is as follows: Figure 1 As shown, the control method includes the following steps:

[0080] Step S100: Obtaining the standby time of the air conditioner and heat generator;

[0081] Step S200: compare the standby time of the air conditioner and heat all-in-one machine with the preset time to determine whether the standby time of the air conditioner and heat all-in-one machine is greater than or equal to the preset time. If not, execute step S100 again; if yes, execute step S300;

[0082] Step S300: Detecting the current position of the purified water in the purified water tank;

[0083] Step S400: Compare the current position of the purified water in the purified water tank with the preset low water level of the purified water in the purified water tank to determine whether the current position of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank. If not, execute step S500; if so, the purifier and heat all-in-one machine enters the water making mode;

[0084] Step S500: Control the drainage device to start working, so that the clean water in the clean water tank flows back to the raw water tank.

[0085] In this way, when the standby time of the heat and water purifier is greater than or equal to the preset time, the excess clean water in the clean water tank is pumped back to the original water tank to avoid the excessive long-term unused clean water from breeding bacteria in the clean water tank, thereby improving the quality of the clean water and ensuring the user experience. Through the above control method, it can be achieved that the clean water tank is always filled with fresh water, and at the same time, the clean water is filtered by the filtration system and is of hygienic and safe water quality.

[0086] It should be noted that the water in the raw water tank at this time includes raw water that has not been filtered by the filtering device and clean water that has been filtered by the filtering device but flows back into the raw water tank, but the two are in a mixed state and will later be filtered by the filtering device before entering the clean water tank. Therefore, the liquid in a mixed state is also called raw water.

[0087] After step S500, the control method further includes:

[0088] Step S600: Detecting the current position of the purified water in the purified water tank;

[0089] Step S700: Determine whether the current position of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank. If not, execute step S500; if so, the purifier and heat all-in-one machine enters the water making mode, and controls the drainage device to stop working.

[0090] In this way, by stopping the drainage device when the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank, it is ensured that the drainage device only pumps the clean water in the clean water tank back into the raw water tank, and avoids pumping air back into the raw water tank.

[0091] The heat and air purifier also includes a filtering device, a booster pump is provided between the raw water tank and the filtering device, a pumping device is provided between the clean water tank and the liquid outlet, and the standby time of the heat and air purifier includes a first standby time of the booster pump and a second standby time of the pumping device.

[0092] Specifically, step S100 includes: respectively acquiring a first standby time length and a second standby time length.

[0093] Specifically, step S200 includes: comparing the first standby time and the second standby time with the preset time respectively, determining whether the first standby time and the second standby time are both greater than or equal to the preset time, if not, executing step S100 again; if so, executing step S300.

[0094] In this way, the first standby time of the booster pump indicates the time during which the booster pump is not working, that is, the time during which the heat and water purification machine does not produce water, and the second standby time of the pumping device indicates the time during which the pumping device is not working, that is, the time during which the heat and water purification machine does not produce liquid. When the first standby time and the second standby time are both greater than or equal to the preset time, that is, when the heat and water purification machine does not produce water and the time during which liquid is not produced are both greater than or equal to the preset time, the excess clean water in the clean water tank is pumped back to the raw water tank, ensuring that the excess clean water in the clean water tank is retained in the clean water tank for more than the preset time and needs to be pumped back to the raw water tank.

[0095] Preferably, in the water production mode in step S400, the control method includes:

[0096] Step S410: obtaining the current position of the raw water in the raw water tank;

[0097] Step S420: Compare the current position of the raw water in the raw water tank with the preset low water level of the raw water in the raw water tank to determine whether the current position of the raw water in the raw water tank is lower than the preset low water level of the raw water in the raw water tank; if not, execute step S430; if yes, refill the raw water tank with liquid;

[0098] Step S430: Control the booster pump to start working, so that the raw water in the raw water tank is filtered by the filtering device to form clean water that enters the clean water tank for storage;

[0099] Step S440: obtaining the current position of the purified water in the purified water tank;

[0100] Step S450: Compare the current position of the clean water in the clean water tank with the preset high water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset high water level of the clean water in the clean water tank. If so, execute step S430; if not, control the booster pump to stop working and the clean water and heat integrated machine enters standby mode.

[0101] It should be noted that the control method in the water production mode can be in step 400, but is not limited to step 400, and can also be in other cases. As long as it is determined that the current position of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank, the water purification and heat integrated machine enters the water production mode and executes the above steps.

[0102] The air purifier and heat all-in-one machine also includes a normal temperature water outlet mode. In the normal temperature water outlet mode, the control method includes:

[0103] Obtain the normal temperature water outlet demand signal;

[0104] Get the current position of the clean water in the clean water tank;

[0105] The current position of the clean water in the clean water tank is compared with the preset low water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank; if not, the pumping device is controlled to start working to make the clean water in the clean water tank discharge through the liquid outlet; if so, the water purification and heat integrated machine enters the water making mode.

[0106] The air-conditioning and heating machine also includes a heating water outlet mode. In the heating water outlet mode, the control method includes:

[0107] Obtaining heating water demand signal;

[0108] Get the current position of the clean water in the clean water tank;

[0109] The current position of the clean water in the clean water tank is compared with the preset low water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank; if not, the pumping device is controlled to start working so that the clean water in the clean water tank is heated by the heating body and discharged to the liquid outlet; if so, the clean water heater enters the water making mode.

[0110] The clean water in the clean water tank is heated by the heating body and then discharged to the liquid outlet. The control method further includes:

[0111] Obtaining a first temperature of the purified water before it enters the heating body;

[0112] Obtaining a second temperature of the purified water after passing through the heating body;

[0113] The heating body is controlled to adjust the heating power of the heating body according to the first temperature and the second temperature.

[0114] In this way, the heating power of the heating body is adjusted by comparing the first temperature and the second temperature to achieve the water outlet temperature required by the user.

[0115] The control method also includes:

[0116] Get the TDS value of purified water;

[0117] The TDS value of purified water is displayed on the interactive interface.

[0118] In this way, through the above settings, it is convenient for users to obtain the TDS value of purified water in the interactive interface.

[0119] like Figure 2 As shown, the present embodiment further provides a heat and air purifier 1, which adopts the control method as described above. The heat and air purifier 1 of the present embodiment adopts the control method as described above, and can pump the excess clean water in the clean water tank 3 back to the raw water tank 2 when the standby time of the heat and air purifier 1 is greater than or equal to the preset time, so as to avoid the excessive clean water that has not been used for a long time from breeding bacteria in the clean water tank 3, thereby improving the quality of clean water and ensuring the user experience.

[0120] As described above, the heat and water purification machine 1 includes a raw water tank 2 and a clean water tank 3. The raw water in the raw water tank 2 is filtered to form clean water and enter the clean water tank 3 for storage. A drainage device 4 is provided between the clean water tank 3 and the raw water tank 2. Specifically, the drainage device 4 is a drainage pump, but is not limited thereto, and may also be other devices with drainage function.

[0121] The volume of the raw water tank 2 is greater than or equal to twice the volume of the clean water tank 3. Thus, by setting the volume of the raw water tank 2 to be greater than or equal to twice the volume of the clean water tank 3, it is ensured that there is enough space to accommodate the clean water pumped back from the clean water tank 3 into the raw water tank 2.

[0122] A low water level detector 21 is provided in the raw water tank 2, and the low water level detector 21 detects whether the current position of the raw water in the raw water tank 2 is lower than the preset low water level of the raw water in the raw water tank 2. A high water level detector is provided in the raw water tank 2, and is used to detect whether the current position of the raw water in the raw water tank 2 reaches the preset high water level of the raw water in the raw water tank 2. The raw water tank 2 is also provided with a first in-position detector 31.

[0123] A communicating vessel 12 connected to the clean water tank 3 is provided beside the clean water tank 3. A low water level float 13 and a high water level float 14 are provided in the communicating vessel 12. The low water level float 13 is used to sense whether the clean water in the clean water tank 3 is at a preset low water level, and the high water level float 14 is used to sense whether the clean water is at a preset high water level. The clean water tank 3 is also provided with a second in-situ detector 32.

[0124] The heat and water purification machine 1 further includes a filter device 5. A booster pump 6 is provided between the raw water tank 2 and the filter device 5. The booster pump 6 allows the raw water in the raw water tank 2 to flow to the filter device 5 for filtration. Specifically, the filter device 5 is a composite filter element. A wastewater solenoid valve 11 is also provided between the filter device 5 and the raw water tank 2 to allow the wastewater of the filter device 5 to flow back to the raw water tank 2.

[0125] A pumping device 8 is provided between the clean water tank 3 and the liquid outlet 7 to allow the clean water in the clean water tank 3 to flow toward the liquid outlet 7. Specifically, the pumping device 8 is a water pump, but is not limited thereto, and may also be other devices with a pumping function.

[0126] A heating body 9 is also provided on the liquid outlet flow path where the clean water in the clean water tank 3 flows to the liquid outlet 7, for heating the clean water in the liquid outlet flow path. A first temperature sensor 15 is also provided on the liquid outlet flow path between the heating body 9 and the clean water tank 323, for obtaining the first temperature of the clean water before it enters the heating body 9. A second temperature sensor 16 is also provided on the liquid outlet flow path between the heating body 9 and the liquid outlet 7, for obtaining the second temperature of the clean water after it passes through the heating body 9. Specifically, both the first temperature sensor 15 and the second temperature sensor 16 are NTC temperature sensors.

[0127] A UV sterilizer 10 is also provided between the clean water tank 3 and the heating body 9 to sterilize the clean water in the liquid outlet flow path.

[0128] A raw water TDS probe 17 is provided between the raw water tank 2 and the filter device 5 to detect the TDS value of the raw water. A clean water TDS probe 18 is provided between the clean water tank 323 and the liquid outlet 7 to detect the TDS value of the clean water.

[0129] A one-way valve 19 is provided between the filter device 5 and the clean water tank 3 to allow the filtered clean water to flow into the clean water tank.

[0130] An air chamber 41 is also provided between the heating body 9 and the liquid outlet 7, for separating the purified water in the liquid outlet flow path from gas to liquid, so as to prevent the purified water flowing out of the liquid outlet 7 from containing gas, thereby ensuring the safety of use. The gas outlet of the communicating vessel 12 is also connected to the air chamber 41, so that the gas in the communicating vessel 12 can be discharged to the outside through the air chamber 41.

[0131] The integrated water purifier and heat machine 1 also includes a controller, and the drainage device 4, the connecting vessel 12, the first in-situ detector 31, the low water level detector 21, the second in-situ detector 32, the filtering device 5, the heating body 9, the first temperature sensor 15, the second temperature sensor 16, the raw water TDS probe 17 and the purified water TDS probe are electrically connected to the controller respectively.

[0132] The air conditioner and heat all-in-one machine 1 also includes a control panel electrically connected to the controller, and an interactive interface is provided on the control panel.

[0133] The all-in-one heat and water purifier 1 of this embodiment adopts the above-mentioned control method, and can pump excess clean water in the clean water tank 3 back to the raw water tank 2 when the standby time of the all-in-one heat and water purifier 1 is greater than or equal to the preset time, so as to avoid the breeding of bacteria in the clean water tank 3 due to excessive clean water that has not been used for a long time, thereby improving the quality of clean water and ensuring the user experience.

[0134] It should be noted that, in order to avoid the problem of a large number of bacteria breeding in the clean water tank 3 due to long-term non-use of the all-in-one heat and purifier 1, those skilled in the art usually adopt means of strengthening sterilization, such as by increasing the heating treatment temperature, or strengthening the sterilization effect of the UV sterilizer 10. However, the purified water treated in this way will cause the problem of poor taste of the output water. The all-in-one heat and purifier 1 and the control method of the all-in-one heat and purifier 1 of this embodiment avoid the problem of poor taste of the output water.

[0135] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A control method for a heat and air conditioning machine, characterized in that: The heat and water purification machine comprises a raw water tank and a clean water tank. The raw water in the raw water tank is filtered to form clean water which enters the clean water tank for storage. A drainage device is provided between the clean water tank and the raw water tank. The control method comprises the following steps: Step S1, obtaining the standby time of the air conditioner and heat all-in-one machine; Step S2, comparing the standby time of the air conditioner and heat integrated machine with the preset time, and determining whether the standby time of the air conditioner and heat integrated machine is greater than or equal to the preset time; if not, executing step S1 again; if yes, executing step S3; Step S3, detecting the current position of the clean water in the clean water tank; Step S4, comparing the current position of the purified water in the purified water tank with the preset low water level of the purified water in the purified water tank, to determine whether the current position of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank, if not, executing step S5; if so, the purified water and heat integrated machine enters the water making mode; Step S5, controlling the drainage device to start working, so that the clean water in the clean water tank flows back into the raw water tank.

2. The control method of the heat and air conditioning machine according to claim 1, characterized in that: After step S5, the control method further includes: Step S6, detecting the current position of the clean water in the clean water tank; Step S7, determine whether the current position of the purified water in the purified water tank is lower than the preset low water level of the purified water in the purified water tank, if not, execute step S5; if so, the purified water and heat integrated machine enters the water making mode, and controls the drainage device to stop working.

3. The control method of the heat and air conditioning machine according to claim 1, characterized in that: The integrated heat and air purifier further includes a filtering device, a booster pump is provided between the raw water tank and the filtering device, a pumping device is provided between the clean water tank and the liquid outlet, the standby time of the integrated heat and air purifier includes a first standby time of the booster pump and a second standby time of the pumping device, and the step S1 includes: respectively obtaining the first standby time and the second standby time; The step S2 includes: comparing the first standby time and the second standby time with the preset time respectively, and determining whether the first standby time and the second standby time are both greater than or equal to the preset time; if not, executing step S1 again; if so, executing step S3.

4. The control method of the heat and air conditioning machine according to claim 3, characterized in that: In the water production mode in step S4, the control method includes: Step S41, obtaining the current position of the raw water in the raw water tank; Step S42, comparing the current position of the raw water in the raw water tank with the preset low water level of the raw water in the raw water tank, to determine whether the current position of the raw water in the raw water tank is lower than the preset low water level of the raw water in the raw water tank, if not, executing step S43; if yes, replenishing the raw water tank with liquid; Step S43, controlling the booster pump to start working, so that the raw water in the raw water tank is filtered by the filtering device to form the clean water which enters the clean water tank for storage; Step S44, obtaining the current position of the purified water in the purified water tank; Step S45, compare the current position of the clean water in the clean water tank with the preset high water level of the clean water in the clean water tank, and determine whether the current position of the clean water in the clean water tank is lower than the preset high water level of the clean water in the clean water tank. If so, execute step S43; if not, control the booster pump to stop working, and the clean water and heat integrated machine enters standby mode.

5. The control method of the heat and air conditioning machine according to claim 3, characterized in that: The air conditioner and heat all-in-one machine also includes a normal temperature water outlet mode. In the normal temperature water outlet mode, the control method includes: Obtain the normal temperature water outlet demand signal; Obtaining the current position of the clean water in the clean water tank; The current position of the clean water in the clean water tank is compared with the preset low water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank; if not, the pumping device is controlled to start working so that the clean water in the clean water tank is discharged through the liquid outlet; if so, the clean water heater enters the water making mode.

6. The control method of the heat and air conditioning machine according to claim 3, characterized in that: The heat and air purifier also includes a water heating mode. In the water heating mode, the control method includes: Obtaining heating water demand signal; Obtaining the current position of the clean water in the clean water tank; The current position of the clean water in the clean water tank is compared with the preset low water level of the clean water in the clean water tank to determine whether the current position of the clean water in the clean water tank is lower than the preset low water level of the clean water in the clean water tank; if not, the pumping device is controlled to start working so that the clean water in the clean water tank is heated by the heating body and then discharged to the liquid outlet; if so, the clean water heater enters the water making mode.

7. The control method of the heat and air conditioning machine according to claim 6, characterized in that: The clean water in the clean water tank is heated by the heating body and then discharged to the liquid outlet, and the control method further includes: Acquiring a first temperature of the purified water before entering the heating body; obtaining a second temperature of the purified water after passing through the heating body; The heating body is controlled to adjust the heating power of the heating body according to the first temperature and the second temperature.

8. The control method of the heat and air conditioning machine according to claim 5 or 6, characterized in that: The control method further comprises: Obtaining the TDS value of the purified water; The TDS value of the purified water is displayed on the interactive interface.

9. A heat and air conditioning machine, characterized in that: The air conditioner and heat all-in-one machine adopts the control method as described in any one of claims 1-8.

10. The air conditioner and heat pump as claimed in claim 9, characterized in that: The volume of the raw water tank is greater than or equal to twice the volume of the clean water tank.

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