Air conditioner control method, air conditioner, storage medium and device

Abstract

The present invention relates to the technical field of air conditioners, and discloses an air conditioner control method, an air conditioner, a storage medium and a device. By additionally providing a hydraulic module, connecting the hydraulic module with a compressor and an indoor heat exchanger, and arranging a first solenoid valve and a second solenoid valve on the connecting passage, when a heating start instruction is received, the first solenoid valve and the second solenoid valve are controlled to close, the initial return water temperature of the hydraulic module is detected, when the initial return water temperature is greater than or equal to a preset lower limit temperature threshold, the second solenoid valve is controlled to open, and the refrigerant amount entering the hydraulic module is adjusted to a preset initial value, and the compressor is controlled to start at a preset frequency, so that when a user needs rapid heating, heat can be absorbed simultaneously from the hydraulic module and an outdoor heat exchanger, the heat absorption speed is increased, and further the heating speed of the air conditioner is increased to meet the user's rapid heating requirement.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and particularly to an air conditioner control method, an air conditioner, a storage medium and a device. Background Art

[0002] At present, when a multi-connected heat pump air conditioning system performs heating, outdoor air is often used as the heat source. However, due to the low pressure of outdoor air, the heat absorption speed of the heat pump is slow, resulting in the indoor air outlet temperature not rising quickly, and the user experience is poor.

[0003] The above content is only used to assist in understanding the technical solution of the present invention, and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The main object of the present invention is to provide an air conditioner control method, an air conditioner, a storage medium and a device, aiming to solve the technical problem that in the prior art, when a multi-connected heat pump air conditioning system performs heating, outdoor air is used as the heat source, and due to the low pressure of outdoor air, the heat absorption speed of the heat pump is slow, resulting in the indoor air outlet temperature not rising quickly, and the user experience is poor.

[0005] To achieve the above object, the present invention provides an air conditioner control method, which is applied to an air conditioner. The air conditioner includes: an indoor heat exchanger, an outdoor heat exchanger, a four-way valve and a compressor. The air conditioner further includes a hydraulic module, a first solenoid valve and a second solenoid valve. One end of the hydraulic module is connected between the indoor heat exchanger and the outdoor heat exchanger. The other end of the hydraulic module is divided into two paths. One path is connected to the exhaust port of the compressor through the first solenoid valve, and the other path is connected to the suction port of the compressor through the second solenoid valve. The air conditioner control method includes the following steps:

[0006] When a heating start instruction is received, control the first solenoid valve and the second solenoid valve to close;

[0007] Control the water pump of the hydraulic module to operate at a preset speed, and detect the initial return water temperature of the hydraulic module;

[0008] When the initial return water temperature is greater than or equal to a preset lower temperature threshold, control the second solenoid valve to open, and adjust the refrigerant amount entering the hydraulic module to a preset initial value; and

[0009] Control the compressor to start at a preset frequency, so that the air conditioner performs heating through the heat of the hydraulic module and the outdoor heat exchanger.

[0010] Optionally, after the step of controlling the compressor to start at a preset frequency so that the air conditioner heats up by the heat of the hydraulic module and the outdoor heat exchanger, the air conditioner control method further includes:

[0011] Detect the temperature of the indoor heat exchanger and the current return water temperature of the hydraulic module;

[0012] Judge whether the air conditioner is in a preset exit state according to the temperature of the indoor heat exchanger and the current return water temperature;

[0013] When the air conditioner is in the preset exit state, control the second solenoid valve to close and control the first solenoid valve to open; and

[0014] Adjust the refrigerant amount entering the hydraulic module to a preset standby value and control the water pump of the hydraulic module to close, so that the air conditioner heats up by the heat of the outdoor heat exchanger.

[0015] Optionally, after the step of adjusting the refrigerant amount entering the hydraulic module to a preset standby value and controlling the water pump of the hydraulic module to close, so that the air conditioner heats up by the heat of the outdoor heat exchanger, the air conditioner control method further includes:

[0016] Obtain the current indoor temperature and judge whether the current indoor temperature is greater than or equal to a preset set temperature;

[0017] When the current indoor temperature is greater than or equal to the preset set temperature, control the water pump of the hydraulic module to start and adjust the refrigerant amount entering the hydraulic module to a preset heating value;

[0018] Control the fan of the indoor heat exchanger to close and adjust the refrigerant amount entering the indoor heat exchanger to a preset standby value;

[0019] Heat the heating water in the hydraulic module and detect the current water temperature of the heating water; and

[0020] When the current water temperature is greater than or equal to the preset set water temperature, control the outdoor heat exchanger to close, so that the air conditioner heats up by the heat of the heating water.

[0021] Optionally, the step of judging whether the air conditioner is in a preset exit state according to the temperature of the indoor heat exchanger and the current return water temperature specifically includes:

[0022] Judge whether the temperature of the indoor heat exchanger is greater than or equal to a preset first temperature threshold;

[0023] When the temperature of the indoor heat exchanger is greater than or equal to a preset first temperature threshold, obtain the duration, and determine whether the duration is greater than a preset first time threshold to obtain a first judgment result;

[0024] Obtain the cumulative operating time of the compressor, and determine whether the cumulative operating time is greater than a preset second time threshold to obtain a second judgment result;

[0025] Determine whether the current return water temperature is less than a preset second temperature threshold to obtain a third judgment result; and

[0026] Judge whether the air conditioner is in a preset exit state according to the first judgment result, the second judgment result, and the third judgment result.

[0027] Optionally, the step of controlling the second solenoid valve to close and the first solenoid valve to open when the air conditioner is in a preset exit state specifically includes:

[0028] When the air conditioner is in a preset exit state, reduce the amount of refrigerant entering the hydraulic module at preset time intervals until no refrigerant enters the hydraulic module; and

[0029] After no refrigerant enters the hydraulic module, control the second solenoid valve to close and the first solenoid valve to open after a preset first time interval.

[0030] Optionally, after the step of controlling the water pump of the hydraulic module to operate at a preset speed and detecting the initial return water temperature of the hydraulic module, the air conditioner control method further includes:

[0031] When the initial return water temperature is less than a preset lower limit temperature threshold, control the second solenoid valve to open; and

[0032] Adjust the amount of refrigerant entering the hydraulic module to a preset threshold, and control the water pump of the hydraulic module to close so that the air conditioner heats through the heat of the outdoor heat exchanger.

[0033] Optionally, after the step of controlling the compressor to start at a preset frequency so that the air conditioner heats through the heat of the hydraulic module and the outdoor heat exchanger, the air conditioner control method further includes:

[0034] Obtain the hydraulic module gas pipe temperature, the hydraulic heat exchanger temperature, the outdoor heat exchanger gas pipe temperature, and the outdoor heat exchanger temperature after a preset second time interval;

[0035] Adjust the amount of refrigerant entering the hydraulic module according to the hydraulic module gas pipe temperature and the hydraulic heat exchanger temperature; and

[0036] Adjust the refrigerant amount entering the outdoor heat exchanger according to the temperature of the gas pipe of the outdoor heat exchanger and the temperature of the outdoor heat exchanger.

[0037] In addition, to achieve the above object, the present invention further provides an air conditioner, which includes: an indoor heat exchanger, an outdoor heat exchanger, a four-way valve, and a compressor. The air conditioner further includes a hydraulic module, a first solenoid valve, and a second solenoid valve. One end of the hydraulic module is connected between the indoor heat exchanger and the outdoor heat exchanger. The other end of the hydraulic module is divided into two paths. One path is connected to the exhaust port of the compressor through the first solenoid valve, and the other path is connected to the suction port of the compressor through the second solenoid valve. The air conditioner further includes a memory, a processor, and an air conditioner control program stored on the memory and executable on the processor. The air conditioner control program is configured to implement the steps of the air conditioner control method as described above.

[0038] In addition, to achieve the above object, the present invention further provides a storage medium, on which an air conditioner control program is stored. When the air conditioner control program is executed by a processor, it implements the steps of the air conditioner control method as described above.

[0039] In addition, to achieve the above object, the present invention further provides an air conditioner control device, which includes: a control module and a detection module;

[0040] The control module is configured to control the first solenoid valve and the second solenoid valve to close when a heating start instruction is received;

[0041] The detection module is configured to control the water pump of the hydraulic module to operate at a preset speed and detect the initial return water temperature of the hydraulic module;

[0042] The control module is further configured to control the second solenoid valve to open and adjust the refrigerant amount entering the hydraulic module to a preset initial value when the initial return water temperature is greater than or equal to a preset lower temperature threshold;

[0043] The control module is further configured to control the compressor to start at a preset frequency so that the air conditioner performs heating through the heat of the hydraulic module and the outdoor heat exchanger.

[0044] The present invention is provided with an additional hydraulic module, which is connected to a compressor and an indoor heat exchanger. A first solenoid valve and a second solenoid valve are arranged on the connection path. When a heating start instruction is received, the first solenoid valve and the second solenoid valve are controlled to close, the initial return water temperature of the hydraulic module is detected, and it is determined whether the initial return water temperature is greater than or equal to a preset lower limit temperature threshold. When the initial return water temperature is greater than or equal to the preset lower limit temperature threshold, the second solenoid valve is controlled to open, and the refrigerant amount entering the hydraulic module is adjusted to a preset initial value. The compressor is controlled to start at a preset frequency, so that the air conditioner performs heating through the heat of the hydraulic module and the outdoor heat exchanger. Thus, when the user needs rapid heating, heat can be absorbed simultaneously from the hydraulic module and the outdoor heat exchanger, improving the heat absorption speed, and further improving the heating speed of the air conditioner to meet the user's rapid heating requirement. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a schematic structural diagram of an air conditioner in the hardware operating environment related to the solution of the embodiment of the present invention;

[0046] Figure 2 is a schematic flowchart of the first embodiment of the air conditioner control method of the present invention;

[0047] Figure 3 is a schematic system diagram of an air conditioner in an embodiment of the air conditioner control method of the present invention;

[0048] Figure 4 is a schematic refrigerant flow diagram of an air conditioner in an embodiment of the air conditioner control method of the present invention;

[0049] Figure 5 is a schematic flowchart of the second embodiment of the air conditioner control method of the present invention;

[0050] Figure 6 is a schematic flowchart of the third embodiment of the air conditioner control method of the present invention;

[0051] Figure 7 is a structural block diagram of the first embodiment of the air conditioner control device of the present invention.

[0052] Description of the reference numerals in the drawings:

[0053] Label Name Label Name 1 Outdoor heat exchanger 5 Second solenoid valve 11 Outdoor electronic expansion valve 6 Hydraulic module 12 First temperature sensor 61 Hydraulic module electronic expansion valve 13 Second temperature sensor 62 Third temperature sensor 2 Four-way valve 63 Fourth temperature sensor 3 Compressor 7 Indoor heat exchanger 4 First solenoid valve 71 Indoor electronic expansion valve

[0054] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0055] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0056] Refer to Figure 1 ,Figure 1 The structural schematic diagram of the air conditioner for the hardware operating environment involved in the solution of the embodiment of the present invention.

[0057] As Figure 1 shown, the air conditioner may further include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. Among them, the communication bus 1002 is used to realize the connection and communication between these components. The user interface 1003 may include a display screen (Display), and optionally, the user interface 1003 may further include a standard wired interface and a wireless interface. For the wired interface of the user interface 1003, it may be a USB interface in the present invention. The network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a Wireless-Fidelity (WI-FI) interface). The memory 1005 may be a high-speed Random Access Memory (RAM) memory, or a stable memory (Non-volatile Memory, NVM), such as a disk memory. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0058] Those skilled in the art can understand that Figure 1 the structure shown in

[0059] does not constitute a limitation to the air conditioner, and it may include more or fewer components than shown in the figure, or combine some components, or have different component arrangements. Figure 1 shown, the memory 1005 regarded as a computer storage medium may include an operating system, a network communication module, a user interface module, and an air conditioner control program.

[0060] In Figure 1 the air conditioner shown, the network interface 1004 is mainly used to connect to the background server and perform data communication with the background server; the user interface 1003 is mainly used to connect to user devices; the air conditioner calls the air conditioner control program stored in the memory 1005 through the processor 1001 and executes the air conditioner control method provided by the embodiment of the present invention.

[0061] Based on the above hardware structure, an embodiment of the air conditioner control method of the present invention is proposed.

[0062] Referring to Figure 2 Figure 2 is the flowchart of the first embodiment of the air conditioner control method of the present invention, and the first embodiment of the air conditioner control method of the present invention is proposed.

[0063] ​In the first embodiment, for ease of understanding, reference is made to Figure 3 for illustrative purposes. Figure 3 Figure 3 is a schematic diagram of the air conditioner system. In the figure, the air conditioner consists of an outdoor heat exchanger 1, an outdoor electronic expansion valve 11, a first temperature sensor 12, a second temperature sensor 13, a four-way valve 2, a compressor 3, a first solenoid valve 4, a second solenoid valve 5, a hydraulic module 6, a hydraulic module electronic expansion valve 61, a third temperature sensor 62, a fourth temperature sensor 63, an indoor heat exchanger 7, and an indoor electronic expansion valve 71.

[0064] Among them, the outdoor heat exchanger 1 is used to absorb heat from outdoor air, the outdoor electronic expansion valve 11 is used to control the amount of refrigerant flowing into the outdoor heat exchanger 1, the first temperature sensor 12 is used to detect the middle temperature of the outdoor heat exchanger 1, and the second temperature sensor 13 is used to detect the temperature of the passage between the outdoor heat exchanger 1 and the compressor 3.

[0065] The four-way valve 2 is used to change the flow direction of the refrigerant in the system pipeline to achieve the mutual conversion between refrigeration and heating. The compressor 3 is used to compress and transport the refrigerant. The first solenoid valve 4 is used to prevent refrigerant accumulation. The second solenoid valve 5 is used to control whether to absorb heat from the hydraulic module 6.

[0066] The hydraulic module 6 is used to absorb the heat of the heating water. The hydraulic module electronic expansion valve 61 is used to control the amount of refrigerant flowing into the hydraulic module 6. The third temperature sensor 62 is used to detect the middle temperature of the hydraulic heat exchanger, and the fourth temperature sensor 63 is used to detect the temperature of the passage between the hydraulic module 6 and the compressor 3.

[0067] The indoor heat exchanger 7 is used to release heat. The indoor electronic expansion valve 71 is used to adjust the amount of refrigerant flowing into the hydraulic module 6 and the outdoor heat exchanger 1.

[0068] The air conditioner control method includes the following steps:

[0069] Step S10: When receiving a heating start instruction, control the first solenoid valve and the second solenoid valve to close.

[0070] It should be understood that the execution subject of this embodiment is the air conditioner. Among them, the air conditioner can be a multi-connected unit heat pump air conditioner, and this embodiment does not limit this.

[0071] It should be noted that the heating start instruction can be input by the user through the user interface of the air conditioner, or can be input by the user through a terminal device that has been pre-connected to the air conditioner for communication. This embodiment does not limit this.

[0072] It can be understood that when a heating start instruction input by the user is received, the four-way valve needs to be adjusted to the heating state for subsequent refrigerant delivery. Among them, the first end of the four-way valve is connected to the outlet end of the outdoor heat exchanger, the second end of the four-way valve is connected to the input end of the compressor, the third end of the four-way valve is connected to the output end of the compressor, and the fourth end of the four-way valve is connected to the input end of the indoor heat exchanger. Adjusting the four-way valve to the heating state can be to connect the first end and the second end of the four-way valve, and connect the third end and the fourth end.

[0073] It should be understood that when a heating start instruction input by the user is received, the four-way valve is adjusted to the heating state, and the first solenoid valve and the second solenoid valve are controlled to close, so that the air conditioner can pre-heat through the heat of the hydraulic module when it is uncertain whether the heat stored in the hydraulic module meets the rapid heating requirement.

[0074] Step S20: Control the water pump of the hydraulic module to operate at a preset speed, and detect the initial return water temperature of the hydraulic module.

[0075] It should be noted that the preset speed can be set in advance. In this embodiment and other embodiments, the maximum speed of the water pump is taken as an example for illustration.

[0076] It should be understood that introducing the heat of the hydraulic module into the compressor for rapid heating will absorb the heat of the hydraulic module. Therefore, when the heat of the hydraulic module is insufficient, forcibly introducing the heat of the hydraulic module into the compressor may cause the water circuit to freeze. To overcome the above defects, in this embodiment, the return water temperature of the hydraulic module is detected, and it is judged whether the heat stored in the hydraulic module meets the rapid heating requirement according to the return water temperature.

[0077] It can be understood that step S20 can specifically be to detect the return water temperature through a temperature sensor pre-set in the hydraulic module, and this embodiment does not limit this.

[0078] Furthermore, when the heat of the hydraulic module is insufficient, forcibly introducing the heat of the hydraulic module into the compressor may cause the water circuit to freeze. To overcome the above defects, after the step S20, it further includes:

[0079] When the initial return water temperature is less than the preset lower temperature threshold, control the second solenoid valve to open;

[0080] Adjust the refrigerant amount entering the hydraulic module to a preset threshold, and control the water pump of the hydraulic module to close, so that the air conditioner heats through the heat of the outdoor heat exchanger.

[0081] It should be noted that the preset lower threshold is the lower limit temperature allowing heat extraction from the hydraulic module, and the preset lower threshold can be set in advance. In this embodiment and other embodiments, 3°C is taken as an example for illustration.

[0082] It should be understood that when the initial return water temperature is lower than the lower limit temperature at which heat can be taken from the hydraulic module, it indicates that the heat stored in the hydraulic module cannot meet the rapid heating demand and heat cannot be taken from the hydraulic module, otherwise there is a risk of waterway icing.

[0083] It can be understood that to avoid taking heat from the hydraulic module, the refrigerant amount entering the hydraulic module can be adjusted according to a preset threshold, and the water pump of the hydraulic module can be turned off. Among them, the preset threshold can be set in advance, and 0 is taken as an example in this embodiment and other embodiments. Adjusting the refrigerant amount entering the hydraulic module according to the preset threshold can be to adjust the opening degree of the electronic expansion valve of the hydraulic module to the opening degree corresponding to the preset threshold.

[0084] In specific implementation, for example, the opening degree of the electronic expansion valve of the hydraulic module is closed to 0 steps so that the refrigerant amount entering the hydraulic module is 0.

[0085] Step S30: When the initial return water temperature is greater than or equal to the preset lower limit temperature threshold, control the second solenoid valve to open and adjust the refrigerant amount entering the hydraulic module to a preset initial value.

[0086] It can be understood that when the initial return water temperature is greater than or equal to the lower limit temperature at which heat can be taken from the hydraulic module, it indicates that the heat stored in the hydraulic module can meet the rapid heating demand and heat can be taken from the hydraulic module.

[0087] It should be understood that to introduce the heat of the hydraulic module into the compressor, the second solenoid valve can be controlled to open, and the refrigerant amount entering the hydraulic module can be adjusted according to the preset initial value. Among them, adjusting the refrigerant amount entering the hydraulic module according to the preset initial value can be to adjust the opening degree of the electronic expansion valve of the hydraulic module to the initial number of steps corresponding to the preset initial value. The preset initial value can be set in advance, and this embodiment does not limit it.

[0088] Step S40: Control the compressor to start at a preset frequency so that the air conditioner heats by the heat of the hydraulic module and the outdoor heat exchanger.

[0089] It should be noted that the preset frequency can be set in advance, and in this embodiment and other embodiments, the highest frequency allowed by the compressor is taken as an example for illustration.

[0090] It should be understood that controlling the compressor to start at a high frequency can meet the rapid heating demand to the greatest extent.

[0091] For ease of understanding, with reference to Figure 4 for illustration by way of example, Figure 4It is a schematic diagram of the refrigerant flow direction of an air conditioner. When the air conditioner receives the heating start command input by the user, the four-way valve 2 is adjusted to the heating state, the first solenoid valve 4 and the second solenoid valve 5 are controlled to close, the water pump of the hydraulic module 6 is controlled to operate at the maximum speed, and the initial return water temperature is detected at the same time. When the initial return water temperature is greater than or equal to 3°C, the second solenoid valve 5 is controlled to open, and the electronic expansion valve 61 of the hydraulic module is opened to the initial number of steps, and the compressor 3 starts at high frequency.

[0092] The refrigerant cooled by the indoor heat exchanger 7 is divided into two paths and flows out. One path is throttled by the outdoor electronic expansion valve 11 and then absorbs the heat of the outdoor air through the outdoor heat exchanger 1, and then flows into the input end of the compressor 3 through the four-way valve 2. The other path is throttled by the electronic expansion valve 61 of the hydraulic module and then flows into the hydraulic module to absorb the heat of the heating water, and then flows into the input end of the compressor 3 through the second solenoid valve 5.

[0093] After the two paths of refrigerant converge at the input end of the compressor 3, they flow out from the output end of the compressor 3, and then flow into the indoor heat exchanger 7 through the four-way valve 2 to achieve rapid heating through the heat of the hydraulic module 6 and the outdoor heat exchanger 1.

[0094] Further, in order to be able to adjust the distribution of the refrigerant in the hydraulic module and the outdoor heat exchanger and prevent liquid return from protecting the compressor, after the step S40, the following steps are further included:

[0095] After a preset second time interval, obtain the hydraulic module trachea temperature, the hydraulic heat exchanger temperature, the outdoor heat exchanger trachea temperature, and the outdoor heat exchanger temperature;

[0096] Adjust the amount of refrigerant entering the hydraulic module according to the hydraulic module trachea temperature and the hydraulic heat exchanger temperature;

[0097] Adjust the amount of refrigerant entering the outdoor heat exchanger according to the outdoor heat exchanger trachea temperature and the outdoor heat exchanger temperature.

[0098] It should be noted that the preset second time can be set in advance. In this embodiment and other embodiments, 60S is taken as an example for illustration.

[0099] It should be understood that the outdoor heat exchanger temperature is obtained through the first temperature sensor, the outdoor heat exchanger trachea temperature is obtained through the second temperature sensor, the hydraulic heat exchanger temperature is obtained through the third temperature sensor, and the hydraulic module trachea temperature is obtained through the fourth temperature sensor. Among them, the outdoor heat exchanger temperature can be the middle temperature of the outdoor heat exchanger, and the hydraulic heat exchanger temperature can be the middle temperature of the hydraulic heat exchanger.

[0100] For the sake of easy understanding, refer to Figure 3 for example, Figure 3It is a system schematic diagram of an air conditioner. The installation positions of the first temperature sensor, the second temperature sensor, the third temperature sensor, and the fourth temperature sensor can be as shown in the figure. Among them, the first temperature sensor, the second temperature sensor, the third temperature sensor, and the fourth temperature sensor can be temperature sensing bulbs, and this embodiment does not limit this.

[0101] It can be understood that adjusting the refrigerant amount entering the hydraulic module can be adjusting the opening degree of the electronic expansion valve of the hydraulic module. Therefore, adjusting the refrigerant amount entering the hydraulic module according to the hydraulic module trachea temperature and the hydraulic heat exchanger temperature can be adjusting the opening degree of the electronic expansion valve of the hydraulic module according to the hydraulic module trachea temperature and the hydraulic heat exchanger temperature.

[0102] It should be understood that adjusting the opening degree of the electronic expansion valve of the hydraulic module according to the hydraulic module trachea temperature and the hydraulic heat exchanger temperature can be calculating the hydraulic module step adjustment value through a preset first superheat formula according to the hydraulic module trachea temperature and the hydraulic heat exchanger temperature, and adjusting the opening degree of the electronic expansion valve of the hydraulic module according to the hydraulic module step adjustment value. Among them, the preset first superheat formula is as follows:

[0103] ΔP W =T W_target -(T W1 -T W2 )

[0104] In the formula, ΔP W is the hydraulic module step adjustment value, T W_target is the target superheat during rapid heating of the hydraulic module, which is a constant value. In this embodiment, it is illustrated by taking 1°C as an example, T W1 is the hydraulic module trachea temperature, T W2 is the hydraulic heat exchanger temperature.

[0105] It can be understood that adjusting the refrigerant amount entering the outdoor heat exchanger can be adjusting the opening degree of the outdoor electronic expansion valve. Therefore, adjusting the refrigerant amount entering the outdoor heat exchanger according to the outdoor heat exchanger trachea temperature and the outdoor heat exchanger temperature can be adjusting the opening degree of the outdoor electronic expansion valve according to the outdoor heat exchanger trachea temperature and the outdoor heat exchanger temperature.

[0106] It should be understood that adjusting the opening degree of the outdoor electronic expansion valve according to the outdoor heat exchanger trachea temperature and the outdoor heat exchanger temperature can be calculating the outdoor heat exchanger step adjustment value through a preset second superheat formula according to the outdoor heat exchanger trachea temperature and the outdoor heat exchanger temperature, and adjusting the opening degree of the outdoor electronic expansion valve according to the outdoor heat exchanger step adjustment value. Among them, the preset second superheat formula is as follows:

[0107] ΔP A =T A_target -(T A1-T A2 )

[0108] wherein, ΔP A is the outdoor heat exchanger step adjustment value, T A_target is the target superheat during rapid heating of the outdoor heat exchanger, which is a constant value. In this embodiment, it is illustrated by taking 1°C as an example, T A1 is the temperature of the gas pipe of the outdoor heat exchanger, T A2 is the temperature of the outdoor heat exchanger.

[0109] Furthermore, in order to be able to detect in real time whether to exit the rapid heating mode and, when exiting the rapid heating mode, switch to the outdoor heat exchanger for heating. After the step S40, it further includes:

[0110] When the middle temperature of the indoor heat exchanger is greater than or equal to 43°C and lasts for 60S, or the cumulative operation time of the compressor reaches 15min, or the return water temperature of the hydraulic module at the current moment is less than 1°C, exit the rapid heating control. The electronic expansion valve of the hydraulic module closes 50 steps every 30S until it closes to 0 steps. After 120S, the second solenoid valve closes, the first solenoid valve opens, the electronic expansion valve of the hydraulic module opens to the heating standby steps, the water pump stops running, and the indoor heat exchanger and the outdoor heat exchanger are normally controlled until the indoor temperature T1 reaches the set temperature.

[0111] Furthermore, in order to be able to switch to the hydraulic module with higher heating efficiency for heating when the user's rapid heating demand has been met. After the step S40, it further includes:

[0112] Since the heating energy efficiency ratio of the hydraulic module is higher than that of the indoor unit, after the indoor unit rapidly heats to meet the user's demand, it switches to the hydraulic module for heating to achieve the purpose of energy saving. Therefore, after the indoor temperature reaches the set temperature, the water pump of the hydraulic module starts to run, the electronic expansion valve of the hydraulic module opens to the initial heating operation steps, the indoor unit fan closes, the electronic expansion valve of the indoor unit is adjusted to the heating standby steps, thereby switching to the hydraulic module for heating, and the indoor unit is in standby. The unit heats the heating water of the hydraulic module until the set water temperature is reached, and then the whole machine reaches the temperature and stops, so that the water path completes heat storage to meet the heating demand. Subsequently, the hydraulic module is used for heating operation until the user shuts down.

[0113] In this embodiment, by additionally setting a hydraulic module, connecting the hydraulic module with the compressor and the indoor heat exchanger, and setting a first solenoid valve and a second solenoid valve on the connecting path, by controlling the opening and closing of the first solenoid valve and the second solenoid valve and the operating state of the hydraulic module, it is possible to simultaneously absorb heat from the hydraulic module and the outdoor heat exchanger when the user needs rapid heating, improve the heat absorption speed, and further improve the heating speed of the air conditioner to meet the user's rapid heating demand.

[0114] Refer toFigure 5 , Figure 5 is a schematic flowchart of the second embodiment of the air conditioner control method of the present invention. Based on the above Figure 2 shown first embodiment, the second embodiment of the air conditioner control method of the present invention is proposed.

[0115] In the second embodiment, after the step S40, the following is further included:

[0116] Step S50: Detect the temperature of the indoor heat exchanger and the current return water temperature of the hydraulic module.

[0117] It should be noted that the temperature of the indoor heat exchanger can be the middle temperature of the indoor heat exchanger. The current return water temperature can be the return water temperature of the hydraulic module at the current moment, and this embodiment does not limit this.

[0118] It should be understood that detecting the temperature of the indoor heat exchanger can be detecting the temperature of the indoor heat exchanger through a temperature sensor pre-set on the indoor heat exchanger.

[0119] Step S60: Determine whether the air conditioner is in a preset exit state according to the temperature of the indoor heat exchanger and the current return water temperature.

[0120] It should be understood that step S60 can specifically be when the temperature of the indoor heat exchanger is greater than or equal to a preset first temperature threshold, and the duration for which the temperature of the indoor heat exchanger is greater than or equal to the preset first temperature threshold is greater than a preset first time threshold, determining that the air conditioner is in a preset exit state, or when the cumulative operation time of the compressor is greater than a preset second time threshold, determining that the air conditioner is in a preset exit state, or when the current return water temperature is less than a preset second temperature threshold, determining that the air conditioner is in a preset exit state.

[0121] It should be noted that the preset first temperature threshold can be pre-set. In this embodiment and other embodiments, it is illustrated by taking 43°C as an example. The duration can be the duration for which the temperature of the indoor heat exchanger is greater than or equal to the preset first temperature threshold. The preset first time threshold can be pre-set. In this embodiment and other embodiments, it is illustrated by taking 60S as an example. The preset second time threshold can be pre-set. In this embodiment and other embodiments, it is illustrated by taking 15 min as an example. The preset second temperature threshold can be pre-set. In this embodiment and other embodiments, it is illustrated by taking 1°C as an example.

[0122] In specific implementation, for example, when the temperature of the indoor heat exchanger is greater than or equal to 43°C and lasts for 60S, or the cumulative operation time of the compressor reaches 15 min, or the current return water temperature of the hydraulic module is less than 1°C, the fast heating control is exited, that is, the air conditioner is in a preset exit state.

[0123] Step S70: When the air conditioner is in a preset exit state, control the second solenoid valve to close and control the first solenoid valve to open.

[0124] It should be understood that when the air conditioner is in a preset exit state, the fast heating control is exited. There is no need to absorb heat from the hydraulic module anymore, and only the heat can be absorbed from the outdoor air to meet the heating demand. Therefore, it is necessary to control the second solenoid valve to close.

[0125] It can be understood that during normal heating, there may be a situation of refrigerant accumulation. In order to avoid refrigerant accumulation, the first solenoid valve can be controlled to open to introduce the excess refrigerant into the hydraulic module to heat the heating water.

[0126] Furthermore, in order to be able to gradually switch the working mode of the air conditioner, the step S70 includes:

[0127] When the air conditioner is in a preset exit state, reduce the amount of refrigerant entering the hydraulic module every preset time period until no refrigerant enters the hydraulic module; and

[0128] After no refrigerant enters the hydraulic module, control the second solenoid valve to close and control the first solenoid valve to open after a preset first time interval.

[0129] It should be noted that the preset time period can be set in advance. In this embodiment and other embodiments, 30S is taken as an example for illustration.

[0130] It should be understood that reducing the amount of refrigerant entering the hydraulic module every preset time period until no refrigerant enters the hydraulic module can be to control the electronic expansion valve of the hydraulic module to close a preset number of steps every preset time period until the electronic expansion valve of the hydraulic module is completely closed.

[0131] In a specific implementation, for example, the electronic expansion valve of the hydraulic module closes 50 steps every 30S until it closes to 0 steps.

[0132] It should be noted that the preset first time can be set in advance. In this embodiment and other embodiments, 120S is taken as an example for illustration.

[0133] Step S80: Adjust the amount of refrigerant entering the hydraulic module to a preset standby value and control the water pump of the hydraulic module to close, so that the air conditioner heats through the heat of the outdoor heat exchanger.

[0134] It can be understood that adjusting the amount of refrigerant entering the hydraulic module to a preset standby value can be to open the electronic expansion valve of the hydraulic module to the heating standby number of steps corresponding to the preset standby value. Among them, the preset standby value can be set in advance, and this embodiment does not limit it.

[0135] In the second embodiment, it is possible to detect in real time whether to exit the fast heating mode, and when exiting the fast heating mode, switch to heating by the heat of the outdoor heat exchanger, thereby avoiding excessive absorption of the heat of the hydraulic module and causing the water circuit to freeze.

[0136] Refer to Figure 6 , Figure 6 FIG. is a schematic flowchart of the third embodiment of the air conditioner control method of the present invention. Based on the above Figure 2 shown first embodiment, the third embodiment of the air conditioner control method of the present invention is proposed.

[0137] In the third embodiment, after the step S80, the following is further included:

[0138] Step S90: Obtain the current indoor temperature, and determine whether the current indoor temperature is greater than or equal to a preset set temperature.

[0139] It should be noted that the current indoor temperature can be the indoor temperature at the current moment. The preset set temperature can be set by the user in advance, and this embodiment does not limit this.

[0140] It should be understood that obtaining the current indoor temperature can be detecting the current indoor temperature through a temperature sensor pre-installed on the indoor side.

[0141] Step S100: When the current indoor temperature is greater than or equal to the preset set temperature, control the water pump of the hydraulic module to turn on, and adjust the refrigerant amount entering the hydraulic module to a preset heating value.

[0142] It can be understood that when the current indoor temperature is greater than or equal to the preset set temperature, the user's fast heating requirement has been met. At this time, it is possible to switch to heating with a higher heating energy efficiency of the hydraulic module to achieve the purpose of energy saving.

[0143] It should be understood that adjusting the refrigerant amount entering the hydraulic module to the preset heating value can be adjusting the electronic expansion valve of the hydraulic module to the heating opening corresponding to the preset heating value. Among them, the preset heating value can be set in advance, and this embodiment does not limit this.

[0144] Step S110: Control the blower of the indoor heat exchanger to turn off, and adjust the refrigerant amount entering the indoor heat exchanger to a preset standby value.

[0145] It can be understood that adjusting the refrigerant amount entering the indoor heat exchanger to the preset standby value can be adjusting the indoor electronic expansion valve to the standby opening corresponding to the preset standby value. Among them, the preset standby value can be set in advance, and this embodiment does not limit this.

[0146] Step S120: Heat the heating water in the hydraulic module and detect the current water temperature of the heating water.

[0147] It should be understood that heating the heating water in the hydraulic module can store heat for subsequent heating.

[0148] Step S130: When the current water temperature is greater than or equal to the preset set water temperature, control the outdoor heat exchanger to close so that the air conditioner heats by the heat of the heating water.

[0149] It should be noted that the preset set water temperature can be set by the user in advance, and this embodiment does not limit it.

[0150] It can be understood that when the current water temperature is greater than or equal to the preset set water temperature, it means that the hydraulic module has completed heat storage and can meet the subsequent heating requirements.

[0151] In the third embodiment, when the user's rapid heating requirement has been met, it can be switched to the hydraulic module with higher heating energy efficiency for heating to achieve the purpose of energy saving.

[0152] In addition, an embodiment of the present invention also proposes a storage medium, on which an air conditioner control program is stored. When the air conditioner control program is executed by a processor, the steps of the air conditioner control method as described above are implemented.

[0153] In addition, with reference to Figure 7 , an embodiment of the present invention also proposes an air conditioner control device, which includes: a control module 10 and a detection module 20;

[0154] The control module 10 is used to control the first solenoid valve and the second solenoid valve to close when a heating start instruction is received.

[0155] For the sake of easy understanding, with reference to Figure 3 for example, Figure 3 is a system schematic diagram of the air conditioner. In the figure, the air conditioner is composed of an outdoor heat exchanger 1, an outdoor electronic expansion valve 11, a first temperature sensor 12, a second temperature sensor 13, a four-way valve 2, a compressor 3, a first solenoid valve 4, a second solenoid valve 5, a hydraulic module 6, a hydraulic module electronic expansion valve 61, a third temperature sensor 62, a fourth temperature sensor 63, an indoor heat exchanger 7, and an indoor electronic expansion valve 71.

[0156] Among them, the outdoor heat exchanger 1 is used to absorb heat from the outdoor air, the outdoor electronic expansion valve 11 is used to control the amount of refrigerant flowing into the outdoor heat exchanger 1, the first temperature sensor 12 is used to detect the middle temperature of the outdoor heat exchanger 1, and the second temperature sensor 13 is used to detect the passage temperature between the outdoor heat exchanger 1 and the compressor 3.

[0157] The four-way valve 2 is used to change the flow direction of the refrigerant in the system pipeline to achieve the mutual conversion between refrigeration and heating. The compressor 3 is used to compress and transport the refrigerant. The first solenoid valve 4 is used to prevent the accumulation of the refrigerant. The second solenoid valve 5 is used to control whether to absorb heat from the hydraulic module 6.

[0158] The hydraulic module 6 is used to absorb the heat of the heating water. The electronic expansion valve 61 of the hydraulic module is used to control the amount of refrigerant flowing into the hydraulic module 6. The third temperature sensor 62 is used to detect the temperature in the middle of the hydraulic heat exchanger, and the fourth temperature sensor 63 is used to detect the temperature of the passage between the hydraulic module 6 and the compressor 3.

[0159] The indoor heat exchanger 7 is used to release heat. The indoor electronic expansion valve 71 is used to adjust the amount of refrigerant flowing into the hydraulic module 6 and the outdoor heat exchanger 1.

[0160] It should be noted that the heating start instruction can be input by the user through the user interaction interface of the air conditioner, or can be input by the user through the terminal device that has established a communication connection with the air conditioner in advance. This embodiment does not limit this.

[0161] It can be understood that when receiving the heating start instruction input by the user, the four-way valve needs to be adjusted to the heating state for subsequent refrigerant transportation. Among them, the first end of the four-way valve is connected to the outlet end of the outdoor heat exchanger, the second end of the four-way valve is connected to the input end of the compressor, the third end of the four-way valve is connected to the output end of the compressor, and the fourth end of the four-way valve is connected to the input end of the indoor heat exchanger. Adjusting the four-way valve to the heating state can be to connect the first end and the second end of the four-way valve, and connect the third end and the fourth end.

[0162] It should be understood that when receiving the heating start instruction input by the user, the four-way valve is adjusted to the heating state, and the first solenoid valve and the second solenoid valve are controlled to be closed, so that the air conditioner can preheat through the heat of the hydraulic module when it is uncertain whether the heat stored in the hydraulic module meets the rapid heating requirement.

[0163] The detection module 20 is used to control the water pump of the hydraulic module to run at a preset speed and detect the initial return water temperature of the hydraulic module.

[0164] It should be noted that the preset speed can be set in advance. In this embodiment and other embodiments, the maximum speed of the water pump is taken as an example for illustration.

[0165] It should be understood that introducing the heat of the hydraulic module into the compressor for rapid heating will absorb the heat of the hydraulic module. Therefore, when the heat of the hydraulic module is insufficient, forcibly introducing the heat of the hydraulic module into the compressor may cause the water circuit to freeze. To overcome the above defects, in this embodiment, the return water temperature of the hydraulic module is detected, and whether the heat stored in the hydraulic module meets the rapid heating requirement is judged according to the return water temperature.

[0166] It can be understood that step S20 may specifically be to detect the initial return water temperature of the hydraulic module through a temperature sensor pre-set in the hydraulic module, and this embodiment does not limit this.

[0167] Furthermore, when the heat of the hydraulic module is insufficient, forcibly introducing the heat of the hydraulic module into the compressor may cause the water circuit to freeze. To overcome the above defects, the control module 10 is further configured to control the second solenoid valve to open when the initial return water temperature is lower than a preset lower temperature threshold;

[0168] Adjust the refrigerant amount entering the hydraulic module to a preset threshold, and control the water pump of the hydraulic module to close, so that the air conditioner heats through the heat of the outdoor heat exchanger.

[0169] It should be noted that the preset lower threshold is the lower limit temperature allowing heat extraction from the hydraulic module, and the preset lower threshold can be pre-set. In this embodiment and other embodiments, 3°C is taken as an example for illustration.

[0170] It should be understood that when the initial return water temperature is lower than the lower limit temperature allowing heat extraction from the hydraulic module, it indicates that the heat stored in the hydraulic module cannot meet the rapid heating requirement and heat cannot be extracted from the hydraulic module, otherwise there is a risk of water circuit freezing.

[0171] It can be understood that to avoid heat extraction from the hydraulic module, the refrigerant amount entering the hydraulic module can be adjusted according to a preset threshold, and the water pump of the hydraulic module is closed. Among them, the preset threshold can be pre-set. In this embodiment and other embodiments, 0 is taken as an example for illustration. Adjusting the refrigerant amount entering the hydraulic module according to the preset threshold can be to adjust the opening of the electronic expansion valve of the hydraulic module to the opening corresponding to the preset threshold.

[0172] In specific implementation, for example, close the opening of the electronic expansion valve of the hydraulic module to 0 steps, so that the refrigerant amount entering the hydraulic module is 0.

[0173] The control module 10 is further configured to control the second solenoid valve to open when the initial return water temperature is greater than or equal to the preset lower temperature threshold, and adjust the refrigerant amount entering the hydraulic module to a preset initial value.

[0174] It can be understood that when the initial return water temperature is greater than or equal to the lower limit temperature allowing heat extraction from the hydraulic module, it indicates that the heat stored in the hydraulic module can meet the rapid heating demand, and heat can be extracted from the hydraulic module.

[0175] It should be understood that in order to introduce the heat of the hydraulic module into the compressor, the second solenoid valve can be controlled to open, and the refrigerant amount entering the hydraulic module can be adjusted according to a preset initial value. Among them, adjusting the refrigerant amount entering the hydraulic module according to the preset initial value can be to adjust the opening degree of the electronic expansion valve of the hydraulic module to the initial step corresponding to the preset initial value. The preset initial value can be set in advance, and this embodiment does not limit it.

[0176] The control module 10 is further configured to control the compressor to start at a preset frequency, so that the air conditioner performs heating through the heat of the hydraulic module and the outdoor heat exchanger.

[0177] It should be noted that the preset frequency can be set in advance. In this embodiment and other embodiments, the highest frequency allowed by the compressor is taken as an example for illustration.

[0178] It should be understood that controlling the compressor to start at a high frequency can meet the rapid heating demand to the greatest extent.

[0179] For the sake of easy understanding, refer to Figure 4 for example, Figure 4 FIG. is a schematic diagram of the refrigerant flow direction of the air conditioner. When the air conditioner receives the heating start instruction input by the user, the four-way valve 2 is adjusted to the heating state, the first solenoid valve 4 and the second solenoid valve 5 are controlled to close, the water pump of the hydraulic module 6 is controlled to operate at the maximum speed, and the initial return water temperature is detected at the same time. When the initial return water temperature is greater than or equal to 3°C, the second solenoid valve 5 is controlled to open, and the electronic expansion valve 61 of the hydraulic module is opened to the initial step, and the compressor 3 starts at a high frequency.

[0180] The refrigerant cooled by the indoor heat exchanger 7 is divided into two paths and flows out. One path flows through the outdoor electronic expansion valve 11 for throttling and then absorbs the heat of the outdoor air through the outdoor heat exchanger 1, and then flows into the input end of the compressor 3 through the four-way valve 2. The other path flows through the electronic expansion valve 61 of the hydraulic module for throttling and then flows into the hydraulic module to absorb the heat of the heating water, and then flows into the input end of the compressor 3 through the second solenoid valve 5.

[0181] After the two paths of refrigerant converge at the input end of the compressor 3, they flow out from the output end of the compressor 3, and then flow into the indoor heat exchanger 7 through the four-way valve 2, so as to achieve rapid heating through the heat of the hydraulic module 6 and the outdoor heat exchanger 1.

[0182] Further, in order to adjust the distribution of the refrigerant in the hydraulic module and the outdoor heat exchanger and prevent liquid return to protect the compressor, the control module 10 is further configured to obtain the hydraulic module gas pipe temperature, the hydraulic heat exchanger temperature, the outdoor heat exchanger gas pipe temperature, and the outdoor heat exchanger temperature after a preset second time interval;

[0183] Adjust the refrigerant amount entering the hydraulic module according to the hydraulic module gas pipe temperature and the hydraulic heat exchanger temperature;

[0184] Adjust the refrigerant amount entering the outdoor heat exchanger according to the outdoor heat exchanger gas pipe temperature and the outdoor heat exchanger temperature.

[0185] It should be noted that the preset second time can be set in advance. In this embodiment and other embodiments, 60S is taken as an example for illustration.

[0186] It should be understood that the outdoor heat exchanger temperature is obtained by the first temperature sensor, the outdoor heat exchanger gas pipe temperature is obtained by the second temperature sensor, the hydraulic heat exchanger temperature is obtained by the third temperature sensor, and the hydraulic module gas pipe temperature is obtained by the fourth temperature sensor. Among them, the outdoor heat exchanger temperature can be the middle temperature of the outdoor heat exchanger, and the hydraulic heat exchanger temperature can be the middle temperature of the hydraulic heat exchanger.

[0187] For the sake of easy understanding, refer to Figure 3 for an example. Figure 3 is a system schematic diagram of the air conditioner. The installation positions of the first temperature sensor, the second temperature sensor, the third temperature sensor, and the fourth temperature sensor can be as shown in the figure. Among them, the first temperature sensor, the second temperature sensor, the third temperature sensor, and the fourth temperature sensor can be temperature sensing packages, and this embodiment does not limit this.

[0188] It can be understood that adjusting the refrigerant amount entering the hydraulic module can be to adjust the opening of the electronic expansion valve of the hydraulic module. Therefore, adjusting the refrigerant amount entering the hydraulic module according to the hydraulic module gas pipe temperature and the hydraulic heat exchanger temperature can be to adjust the opening of the electronic expansion valve of the hydraulic module according to the hydraulic module gas pipe temperature and the hydraulic heat exchanger temperature.

[0189] It should be understood that adjusting the opening of the electronic expansion valve of the hydraulic module according to the hydraulic module gas pipe temperature and the hydraulic heat exchanger temperature can be to calculate the hydraulic module step adjustment value through a preset first superheat formula according to the hydraulic module gas pipe temperature and the hydraulic heat exchanger temperature, and adjust the opening of the electronic expansion valve of the hydraulic module according to the hydraulic module step adjustment value. Among them, the preset first superheat formula is as follows:

[0190] ΔP W =T W_target -(T W1 -T W2 )

[0191] Wherein, ΔP W is the hydraulic module step adjustment value, T W_target is the target superheat degree during rapid heating of the hydraulic module, which is a constant value. In this embodiment, it is illustrated by taking 1°C as an example. T W1 is the temperature of the gas pipe of the hydraulic module, T W2 is the temperature of the hydraulic heat exchanger.

[0192] It can be understood that adjusting the refrigerant amount entering the outdoor heat exchanger can be to adjust the opening degree of the outdoor electronic expansion valve. Therefore, adjusting the refrigerant amount entering the outdoor heat exchanger according to the temperature of the gas pipe of the outdoor heat exchanger and the temperature of the outdoor heat exchanger can be to adjust the opening degree of the outdoor electronic expansion valve according to the temperature of the gas pipe of the outdoor heat exchanger and the temperature of the outdoor heat exchanger.

[0193] It should be understood that adjusting the opening degree of the outdoor electronic expansion valve according to the temperature of the gas pipe of the outdoor heat exchanger and the temperature of the outdoor heat exchanger can be to calculate the step adjustment value of the outdoor heat exchanger according to the temperature of the gas pipe of the outdoor heat exchanger and the temperature of the outdoor heat exchanger through a preset second superheat formula, and adjust the opening degree of the outdoor electronic expansion valve according to the step adjustment value of the outdoor heat exchanger. Among them, the preset second superheat formula is as follows:

[0194] ΔP A = T A_target -(T A1 - T A2 )

[0195] Wherein, ΔP A is the step adjustment value of the outdoor heat exchanger, T A_target is the target superheat degree during rapid heating of the outdoor heat exchanger, which is a constant value. In this embodiment, it is illustrated by taking 1°C as an example. T A1 is the temperature of the gas pipe of the outdoor heat exchanger, T A2 is the temperature of the outdoor heat exchanger.

[0196] Furthermore, in order to be able to detect in real time whether to exit the rapid heating mode, and when exiting the rapid heating mode, switch to the outdoor heat exchanger for heating. The control module 10 is further configured to:

[0197] When the middle temperature of the indoor heat exchanger is greater than or equal to 43°C and lasts for 60S, or the cumulative operation time of the compressor reaches 15min, or the return water temperature of the hydraulic module at the current moment is less than 1°C, exit the rapid heating control. The hydraulic module electronic expansion valve closes 50 steps every 30S until it closes to 0 steps. After 120S, the second solenoid valve closes, the first solenoid valve opens, the hydraulic module electronic expansion valve opens to the heating standby steps, the water pump stops running, and the indoor heat exchanger and the outdoor heat exchanger are normally controlled until the indoor temperature T1 reaches the set temperature.

[0198] Further, in order to be able to switch to the water heating module with higher heating efficiency for heating when the user's rapid heating demand has been met, the control module 10 is further configured to:

[0199] Since the heating energy efficiency ratio of the water heating module is higher than that of the indoor unit, after the indoor unit quickly heats up to meet the user's demand, it is switched to the water heating module for heating to achieve the purpose of energy saving. Therefore, after the indoor temperature reaches the set temperature, the water pump of the water heating module starts to operate, the electronic expansion valve of the water heating module is opened to the initial heating operation step, the indoor unit fan is turned off, and the electronic expansion valve of the indoor unit is adjusted to the heating standby step, so as to switch to the water heating module for heating, and the indoor unit is in standby. The unit heats the heating water of the water heating module until the set water temperature is reached, and then the whole machine stops when the temperature is reached, so that the water path completes heat storage to meet the heating demand. Subsequent heating uses the water heating module for heating operation until the user shuts down.

[0200] In this embodiment, by additionally providing a water heating module and connecting the water heating module with the compressor and the indoor heat exchanger, and arranging a first solenoid valve and a second solenoid valve on the connecting path, by controlling the opening and closing of the first solenoid valve and the second solenoid valve and the operating state of the water heating module, it is possible to simultaneously absorb heat from the water heating module and the outdoor heat exchanger when the user needs rapid heating, improve the heat absorption speed, and further improve the heating speed of the air conditioner to meet the user's rapid heating demand.

[0201] For other embodiments or specific implementation manners of the air conditioner control device of the present invention, reference may be made to the above method embodiments, which will not be elaborated here.

[0202] It should be noted that in this article, the term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or system including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or system. Without further limitation, an element defined by the phrase "including a..." does not exclude the presence of additional identical elements in the process, method, article or system including the element.

[0203] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments. Among the several unit claims listing a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not denote any order and these words may be interpreted as names.

[0204] Through the description of the above embodiments, those skilled in the art can clearly understand that the above embodiment methods can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as a Read Only Memory image (ROM) / Random Access Memory (RAM), magnetic disk, optical disk), and includes several instructions to enable a terminal device (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of the present invention.

[0205] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An air conditioner control method, characterized in that, the air conditioner control method is applied to an air conditioner, and the air conditioner includes: an indoor heat exchanger, an outdoor heat exchanger, a four-way valve, and a compressor. The air conditioner further includes a hydraulic module, a first solenoid valve, and a second solenoid valve. One end of the hydraulic module is connected between the indoor heat exchanger and the outdoor heat exchanger, and the other end of the hydraulic module is divided into two paths. One path is connected to the exhaust port of the compressor through the first solenoid valve, and the other path is connected to the suction port of the compressor through the second solenoid valve. The air conditioner control method includes the following steps: When a heating start instruction is received, control the first solenoid valve and the second solenoid valve to close; Control the water pump of the hydraulic module to operate at a preset speed, and detect the initial return water temperature of the hydraulic module; When the initial return water temperature is greater than or equal to a preset lower temperature threshold, control the second solenoid valve to open, and adjust the refrigerant amount entering the hydraulic module to a preset initial value; and Control the compressor to start at a preset frequency, so that the air conditioner performs heating through the heat of the hydraulic module and the outdoor heat exchanger; Wherein, after the step of controlling the compressor to start at a preset frequency so that the air conditioner performs heating through the heat of the hydraulic module and the outdoor heat exchanger, the air conditioner control method further includes: Detect the indoor heat exchanger temperature and the current return water temperature of the hydraulic module; Judge whether the air conditioner is in a preset exit state according to the indoor heat exchanger temperature and the current return water temperature; When the air conditioner is in a preset exit state, control the second solenoid valve to close, and control the first solenoid valve to open; and Adjust the refrigerant amount entering the hydraulic module to a preset standby value, and control the water pump of the hydraulic module to close, so that the air conditioner performs heating through the heat of the outdoor heat exchanger; The step of, when the air conditioner is in a preset exit state, controlling the second solenoid valve to close and controlling the first solenoid valve to open specifically includes: When the air conditioner is in a preset exit state, reduce the refrigerant amount entering the hydraulic module every preset time period until no refrigerant enters the hydraulic module; and After no refrigerant enters the hydraulic module, control the second solenoid valve to close and control the first solenoid valve to open after a preset first time interval.

2. The air conditioner control method according to claim 1, characterized in that, after the step of adjusting the refrigerant amount entering the hydraulic module to a preset standby value and controlling the water pump of the hydraulic module to close so that the air conditioner performs heating through the heat of the outdoor heat exchanger, the air conditioner control method further includes: Obtain the current indoor temperature, and judge whether the current indoor temperature is greater than or equal to a preset set temperature; When the current indoor temperature is greater than or equal to the preset set temperature, control the water pump of the hydraulic module to open, and adjust the refrigerant amount entering the hydraulic module to a preset heating value; Control the blower of the indoor heat exchanger to turn off, and adjust the refrigerant amount entering the indoor heat exchanger to a preset standby value; Heat the heating water in the hydraulic module, and detect the current water temperature of the heating water; and When the current water temperature is greater than or equal to a preset set water temperature, control the outdoor heat exchanger to turn off, so that the air conditioner performs heating through the heat of the heating water.

3. The air conditioner control method according to claim 1, characterized in that The step of judging whether the air conditioner is in a preset exit state according to the indoor heat exchanger temperature and the current return water temperature specifically includes: Judge whether the indoor heat exchanger temperature is greater than or equal to a preset first temperature threshold; When the indoor heat exchanger temperature is greater than or equal to a preset first temperature threshold, obtain the duration, and judge whether the duration is greater than a preset first time threshold to obtain a first judgment result; Obtain the cumulative operation time of the compressor, and judge whether the cumulative operation time is greater than a preset second time threshold to obtain a second judgment result; Judge whether the current return water temperature is less than a preset second temperature threshold to obtain a third judgment result; and Judge whether the air conditioner is in a preset exit state according to the first judgment result, the second judgment result and the third judgment result.

4. The air conditioner control method according to any one of claims 1-3, characterized in that After the step of controlling the water pump of the hydraulic module to operate at a preset speed and detecting the initial return water temperature of the hydraulic module, the air conditioner control method further includes: When the initial return water temperature is less than a preset lower limit temperature threshold, control the second solenoid valve to open; and Adjust the refrigerant amount entering the hydraulic module to a preset threshold, and control the water pump of the hydraulic module to turn off, so that the air conditioner performs heating through the heat of the outdoor heat exchanger.

5. The air conditioner control method according to any one of claims 1-3, characterized in that After the step of controlling the compressor to start at a preset frequency so that the air conditioner performs heating through the heat of the hydraulic module and the outdoor heat exchanger, the air conditioner control method further includes: Obtain the hydraulic module gas pipe temperature, the hydraulic heat exchanger temperature, the outdoor heat exchanger gas pipe temperature and the outdoor heat exchanger temperature after a preset second time interval; Adjust the refrigerant amount entering the hydraulic module according to the hydraulic module gas pipe temperature and the hydraulic heat exchanger temperature; and Adjust the refrigerant amount entering the outdoor heat exchanger according to the outdoor heat exchanger gas pipe temperature and the outdoor heat exchanger temperature.

6. An air conditioner, characterized in that The air conditioner includes: an indoor heat exchanger, an outdoor heat exchanger, a four-way valve, and a compressor. The air conditioner further includes a hydraulic module, a first solenoid valve, and a second solenoid valve. One end of the hydraulic module is connected between the indoor heat exchanger and the outdoor heat exchanger. The other end of the hydraulic module is divided into two paths. One path is connected to the exhaust port of the compressor through the first solenoid valve, and the other path is connected to the suction port of the compressor through the second solenoid valve. The air conditioner further includes: a memory, a processor, and an air conditioner control program stored on the memory and executable on the processor. When the air conditioner control program is executed by the processor, the steps of the air conditioner control method according to any one of claims 1 to 5 are implemented.

7. A storage medium, characterized in that, an air conditioner control program is stored on the storage medium. When the air conditioner control program is executed by a processor, the steps of the air conditioner control method according to any one of claims 1 to 5 are implemented.

8. An air conditioner control device, characterized in that, the air conditioner control device is applied to an air conditioner. The air conditioner includes: an indoor heat exchanger, an outdoor heat exchanger, a four-way valve, and a compressor. The air conditioner further includes a hydraulic module, a first solenoid valve, and a second solenoid valve. One end of the hydraulic module is connected between the indoor heat exchanger and the outdoor heat exchanger. The other end of the hydraulic module is divided into two paths. One path is connected to the exhaust port of the compressor through the first solenoid valve, and the other path is connected to the suction port of the compressor through the second solenoid valve. The air conditioner control device includes: a control module and a detection module; The control module is configured to control the first solenoid valve and the second solenoid valve to close when a heating start instruction is received; The detection module is configured to control the water pump of the hydraulic module to operate at a preset speed and detect the initial return water temperature of the hydraulic module; The control module is further configured to control the second solenoid valve to open and adjust the refrigerant amount entering the hydraulic module to a preset initial value when the initial return water temperature is greater than or equal to a preset lower temperature threshold; The control module is further configured to control the compressor to start at a preset frequency so that the air conditioner performs heating through the heat of the hydraulic module and the outdoor heat exchanger; Wherein, after controlling the compressor to start at a preset frequency so that the air conditioner performs heating through the heat of the hydraulic module and the outdoor heat exchanger, the control module is further configured to detect the indoor heat exchanger temperature and the current return water temperature of the hydraulic module; determine whether the air conditioner is in a preset exit state according to the indoor heat exchanger temperature and the current return water temperature; when the air conditioner is in the preset exit state, control the second solenoid valve to close, control the first solenoid valve to open; and adjust the refrigerant amount entering the hydraulic module to a preset standby value, and control the water pump of the hydraulic module to close so that the air conditioner performs heating through the heat of the outdoor heat exchanger; The controlling the second solenoid valve to close and controlling the first solenoid valve to open when the air conditioner is in the preset exit state includes: When the air conditioner is in a preset exit state, the refrigerant amount entering the hydraulic module is reduced every preset time period until no refrigerant enters the hydraulic module; and after no refrigerant enters the hydraulic module, the second solenoid valve is controlled to close and the first solenoid valve is controlled to open after a preset first time interval.

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