CN107202402B - Air conditioning system and control method thereof - Google Patents
Air conditioning system and control method thereof Download PDFInfo
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- CN107202402B CN107202402B CN201710395436.9A CN201710395436A CN107202402B CN 107202402 B CN107202402 B CN 107202402B CN 201710395436 A CN201710395436 A CN 201710395436A CN 107202402 B CN107202402 B CN 107202402B
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Abstract
The invention discloses an air conditioning system and a control method thereof, wherein the method comprises the following steps: receiving an operation mode input by a user; acquiring a four-way valve control mode corresponding to the operation mode according to the operation mode input by the user, and controlling the four-way valve of the air conditioning system to work according to the corresponding four-way valve control mode; detecting the outlet temperature of the indoor heat exchanger; whether the four-way valve control mode is matched with the operation mode input by the user or not is judged according to the outlet temperature of the indoor heat exchanger, so that whether the indoor unit is matched with the outdoor unit or not can be automatically identified, the same indoor unit can be matched with different outdoor units, refrigeration when the user needs refrigeration is ensured, heating when the user needs heating is ensured, and the user satisfaction is improved.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to a control method of an air conditioning system and the air conditioning system.
Background
In the related art, a part of air conditioning systems adopt a 24V control mode, and under the 24V control mode, an indoor unit and an outdoor unit do not need to communicate, and the operation state of a machine body is controlled only by a power-on and power-off mode, so that a user can separately buy the indoor unit and the outdoor unit of the air conditioning system. However, there is a problem in that, since there is no unified standard in the local market, the power-on and power-off control method of the four-way valve is not unified, and the outdoor unit and the indoor unit separately purchased by the user may not be matched, so that the user may heat when the user needs to cool, and cool when the user needs to heat, so that the user satisfaction is low.
Accordingly, there is a need for improvement in the related art.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a control method for an air conditioning system, which can automatically identify whether an indoor unit and an outdoor unit are matched.
Another object of the present invention is to provide an air conditioning system.
In order to achieve the above object, an embodiment of the present invention provides a control method for an air conditioning system, including the following steps: receiving an operation mode input by a user; acquiring a four-way valve control mode corresponding to the operation mode according to the operation mode input by the user, and controlling the four-way valve of the air conditioning system to work according to the corresponding four-way valve control mode; detecting the outlet temperature of the indoor heat exchanger; and judging whether the four-way valve control mode is matched with the operation mode input by the user or not according to the outlet temperature of the indoor heat exchanger.
According to the control method of the air conditioning system provided by the embodiment of the invention, firstly, the operation mode input by a user is received, then the four-way valve control mode corresponding to the operation mode is obtained according to the operation mode input by the user, the four-way valve of the air conditioning system is controlled to work according to the corresponding four-way valve control mode, the outlet temperature of the indoor heat exchanger is detected, and whether the four-way valve control mode is matched with the operation mode input by the user is further judged according to the outlet temperature of the indoor heat exchanger, so that whether the indoor unit is matched with the outdoor unit can be automatically identified, the same indoor unit can be matched with different outdoor units, refrigeration when the user needs refrigeration is ensured, heating when the user needs heating is carried out.
According to one embodiment of the present invention, if the four-way valve control manner is matched with the operation mode input by the user, the corresponding four-way valve control manner is maintained; and if the four-way valve control mode is not matched with the operation mode input by the user, switching the corresponding four-way valve control mode.
According to one embodiment of the invention, when the operation mode input by the user is a refrigeration mode, the four-way valve is controlled to work in a first state, wherein if the outlet temperature of the indoor heat exchanger is less than or equal to a preset temperature, the control mode of the four-way valve is judged to be matched with the operation mode input by the user, and the control mode of the four-way valve corresponding to the refrigeration mode is kept to be switched to the first state; and if the outlet temperature of the indoor heat exchanger is higher than the preset temperature, judging that the four-way valve control mode is not matched with the operation mode input by the user, and switching the four-way valve control mode corresponding to the refrigeration mode to a second state.
According to one embodiment of the invention, when the operation mode input by the user is a heating mode, the four-way valve is controlled to work in a second state, wherein if the outlet temperature of the indoor heat exchanger is higher than the preset temperature, the control mode of the four-way valve is judged to be matched with the operation mode input by the user, and the control mode of the four-way valve corresponding to the heating mode is kept to be switched to the second state; and if the outlet temperature of the indoor heat exchanger is less than or equal to the preset temperature, judging that the four-way valve control mode is not matched with the operation mode input by the user, and switching the four-way valve control mode corresponding to the heating mode to a first state.
According to an embodiment of the invention, the first state is a power-off state and the second state is a power-on state.
In order to achieve the above object, an embodiment of another aspect of the present invention provides an air conditioning system, including: the receiving module is used for receiving an operation mode input by a user; the temperature detection module is used for detecting the outlet temperature of the indoor heat exchanger; and the control module is respectively connected with the receiving module and the temperature detection module, and is used for acquiring a four-way valve control mode corresponding to the operation mode according to the operation mode input by the user, controlling the four-way valve of the air conditioning system to work according to the corresponding four-way valve control mode, and judging whether the four-way valve control mode is matched with the operation mode input by the user according to the outlet temperature of the indoor heat exchanger.
According to the air conditioning system provided by the embodiment of the invention, the control module acquires the four-way valve control mode corresponding to the operation mode according to the operation mode input by the user and received by the receiving module, controls the four-way valve of the air conditioning system to work according to the corresponding four-way valve control mode, and judges whether the four-way valve control mode is matched with the operation mode input by the user or not according to the outlet temperature of the indoor heat exchanger detected by the temperature detection module, so that whether the indoor unit is matched with the outdoor unit or not can be automatically identified, the same indoor unit can be matched with different outdoor units, refrigeration when the user needs refrigeration and heating when the user needs heating can be ensured, and the satisfaction degree of.
According to an embodiment of the present invention, the control module is further configured to maintain the corresponding four-way valve control mode when the four-way valve control mode matches the operation mode input by the user, and switch the corresponding four-way valve control mode when the four-way valve control mode does not match the operation mode input by the user.
According to an embodiment of the present invention, the control module is further configured to control the four-way valve to operate in a first state when the operation mode input by the user is a refrigeration mode, wherein if the outlet temperature of the indoor heat exchanger is less than or equal to a preset temperature, the control module determines that the four-way valve control mode is matched with the operation mode input by the user, and keeps the four-way valve control mode corresponding to the refrigeration mode switched to the first state; and if the outlet temperature of the indoor heat exchanger is higher than the preset temperature, the control module judges that the four-way valve control mode is not matched with the operation mode input by the user, and switches the four-way valve control mode corresponding to the refrigeration mode to a second state.
According to an embodiment of the present invention, the control module is further configured to control the four-way valve to operate in a second state when the operation mode input by the user is a heating mode, wherein if the outlet temperature of the indoor heat exchanger is greater than a preset temperature, the control module determines that a control manner of the four-way valve is matched with the operation mode input by the user, and keeps the control manner of the four-way valve corresponding to the heating mode to be switched to the second state; if the outlet temperature of the indoor heat exchanger is less than or equal to the preset temperature, the control module judges that the four-way valve control mode is not matched with the operation mode input by the user, and switches the four-way valve control mode corresponding to the heating mode to a first state.
According to an embodiment of the invention, the first state is a power-off state and the second state is a power-on state.
Drawings
Fig. 1 is a flowchart of a control method of an air conditioning system according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of an air conditioning system according to an embodiment of the present invention;
FIG. 3 is a block schematic diagram of an air conditioning system according to an embodiment of the present invention; and
fig. 4 is a schematic diagram of an air conditioning system according to an embodiment of the present invention.
Reference numerals: the system comprises an air conditioning system 100, a receiving module 10, a temperature detection module 20 and a control module 30;
the system comprises a compressor 1, a four-way valve 2, an outdoor heat exchanger 3, an electronic expansion valve 4, an indoor heat exchanger 5, a pipeline temperature sensing bulb 6 and a gas-liquid separator 7.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
An air conditioning system and a control method thereof according to an embodiment of the present invention will be described with reference to the accompanying drawings.
Fig. 1 is a flowchart of a control method of an air conditioning system according to an embodiment of the present invention. As shown in fig. 1, the control method of the air conditioning system includes the steps of:
s1: an operational mode input by a user is received.
The operation mode input by the user can comprise three modes of air supply, refrigeration and heating.
It should be understood that, before the user inputs the operation mode, the user inputs a power-on command through the remote controller or the line controller to control the air conditioner to be powered on, after the air conditioner is powered on, the user may input a mode command, such as an air supply mode command, a cooling mode command or a heating mode command, through the remote controller or the line controller of the air conditioner, and the receiving module of the air conditioning system may receive the mode command input by the user.
When receiving a refrigerating mode instruction, controlling the air conditioning system to operate in a refrigerating mode, wherein the refrigerating principle of the air conditioning system is as follows: when the air conditioning system is in a refrigeration mode, high-temperature and high-pressure gas refrigerants discharged by the compressor flow through the four-way valve, enter the outdoor heat exchanger (the condenser at the moment) for heat dissipation, are throttled by the electronic expansion valve to form low-temperature and low-pressure refrigerants, then enter the indoor heat exchanger (the evaporator at the moment) for heat absorption and evaporation, then flow into the gas-liquid separator for gas-liquid separation, then the gas refrigerants return to the compressor for circulation, and the liquid refrigerants are stored in the gas-liquid separator.
As shown in fig. 4, the heating principle of the air conditioning system is as follows: when the air conditioning system is in a heating mode, heating is carried out by switching the direction of the four-way valve, high-temperature and high-pressure gas refrigerants discharged by the compressor flow through the four-way valve, enter an indoor heat exchanger (serving as a condenser at this time) for heat dissipation, are throttled by the electronic expansion valve to form low-temperature and low-pressure refrigerants, enter an outdoor heat exchanger (serving as an evaporator at this time) for heat absorption and evaporation, flow into a gas-liquid separator for gas-liquid separation, then return gaseous refrigerants to the compressor for circulation, and store liquid refrigerants in the gas-liquid separator.
S2: and acquiring a four-way valve control mode corresponding to the operation mode according to the operation mode input by the user, and controlling the four-way valve of the air conditioning system to work according to the corresponding four-way valve control mode.
Specifically, if the operation mode received by the receiving module of the air conditioning system by the user input is the air supply mode, the four-way valve control mode corresponding to the air supply mode cannot be acquired according to the air supply mode input by the user. That is, in the air blowing mode, the four-way valve control method cannot be obtained, and thus the four-way valve of the air conditioning system cannot be controlled to operate according to the four-way valve control method.
If the operation mode received by the receiving module of the air conditioning system and input by the user is the refrigeration mode, the four-way valve control mode corresponding to the refrigeration mode is obtained according to the refrigeration mode input by the user, for example, the four-way valve of the air conditioning system is controlled to work in the first state according to the four-way valve control mode corresponding to the refrigeration mode.
If the operation mode received by the receiving module of the air conditioning system by the user is the heating mode, acquiring a four-way valve control mode corresponding to the heating mode according to the heating mode input by the user, for example, controlling the four-way valve of the air conditioning system to work in the second state according to the four-way valve control mode corresponding to the heating mode.
Wherein, according to an embodiment of the present invention, the first state may be a power-off state and the second state may be a power-on state.
That is, in the embodiment of the present invention, if the user inputs an air supply mode, the four-way valve is not controlled, and the operation mode for receiving the user input is continuously detected; if the user inputs a refrigeration mode, controlling the four-way valve to work in a first state, namely a power-off state according to a control mode of refrigeration and power-off of the four-way valve; if the user inputs the heating mode, the four-way valve is controlled to work in the second state, namely the power-on state, according to the control mode of heating and power-on of the four-way valve, so that the four-way valve of the air conditioning system can be controlled to work in the corresponding state according to the operation mode input by the user and the control mode of the preset four-way valve.
S3: and detecting the outlet temperature of the indoor heat exchanger.
The temperature detection module can be arranged on a pipeline connecting the outlet of the indoor heat exchanger and the four-way valve, and is a pipeline temperature sensing bulb so as to detect the temperature of the outlet of the indoor heat exchanger, namely a refrigerating outlet or a heating inlet.
It should be noted that the pipeline connecting the outlet of the indoor heat exchanger and the four-way valve may be a T-inner pipe of the air conditioning system.
S4: and judging whether the control mode of the four-way valve is matched with the operation mode input by a user or not according to the outlet temperature of the indoor heat exchanger.
According to one embodiment of the invention, if the four-way valve control mode is matched with the operation mode input by the user, the corresponding four-way valve control mode is maintained; and if the four-way valve control mode is not matched with the operation mode input by the user, switching the corresponding four-way valve control mode.
That is, maintaining the corresponding four-way valve control manner may mean that if the current user input is that the operation mode is the cooling mode, the four-way valve control manner of the air conditioning system is maintained in a power-off state, or if the current user input is that the operation mode is the heating mode, the four-way valve control manner of the air conditioning system is in a power-on state.
In addition, switching the corresponding four-way valve control mode may refer to switching the four-way valve control mode of the air conditioning system from a power-on state to a power-off state if the operation mode input by the current user is the cooling mode, or switching the four-way valve control mode of the air conditioning system from the power-off state to the power-on state if the operation mode input by the current user is the heating mode.
Further, according to an embodiment of the present invention, when the operation mode input by the user is the cooling mode, the four-way valve is controlled to operate in the first state, wherein if the outlet temperature of the indoor heat exchanger is less than or equal to the preset temperature, it is determined that the control mode of the four-way valve matches the operation mode input by the user, and the control mode of the four-way valve corresponding to the cooling mode is maintained in the first state; and if the outlet temperature of the indoor heat exchanger is higher than the preset temperature, judging that the four-way valve control mode is not matched with the operation mode input by the user, and switching the four-way valve control mode corresponding to the refrigeration mode into a second state.
The preset temperature can be preset in the air conditioning system in advance, the value of the preset temperature can be calibrated according to the actual running mode of the air conditioning system, the values can be the same or different in different running modes of the air conditioner, and only the compressor can be guaranteed to run reliably and no misjudgment occurs.
Specifically, when the operation mode input by a user is a refrigeration mode, the four-way valve is controlled to work in a first state, namely a power-off state according to a refrigeration power-off control mode, wherein if the detected outlet temperature of the indoor heat exchanger is less than or equal to a preset temperature, the air conditioning system is in the refrigeration mode at the moment, the control mode of the four-way valve is matched with the operation mode input by the user, namely, the control mode of the four-way valve is matched with the outdoor unit, the indoor unit does not need to change the power-on condition of the four-way valve, and only the four-way valve corresponding to the refrigeration mode needs to be kept to work in; if the outlet temperature of the indoor heat exchanger is higher than the preset temperature, the air conditioning system is in a heating mode at the moment and conflicts with a refrigeration mode input by a user, the control mode of the four-way valve is not matched with the operation mode input by the user, namely, the control mode of the four-way valve is not matched with the outdoor unit, the power-on condition of the four-way valve of the indoor unit needs to be changed, namely, the refrigeration power-off switching heating power-on condition of the four-way valve corresponding to the refrigeration mode is changed, so that the four-way valve works in a second.
According to one embodiment of the invention, when the operation mode input by a user is a heating mode, the four-way valve is controlled to work in a second state, wherein if the outlet temperature of the indoor heat exchanger is greater than the preset temperature, the control mode of the four-way valve is judged to be matched with the operation mode input by the user, and the control mode of the four-way valve corresponding to the heating mode is kept in the second state; and if the outlet temperature of the indoor heat exchanger is less than or equal to the preset temperature, judging that the control mode of the four-way valve is not matched with the operation mode input by the user, and switching the control mode of the four-way valve corresponding to the heating mode into the first state.
That is, when the operation mode input by the user is the heating mode, the four-way valve is controlled to work in the second state according to the control mode of heating to obtain the electric state, wherein if the outlet temperature of the indoor heat exchanger is greater than the preset temperature, the air conditioning system is in the heating mode at the moment, the control mode of the four-way valve is matched with the operation mode input by the user, namely, the control mode of the four-way valve is matched with the outdoor unit, the indoor unit does not need to change the power-on condition of the four-way valve, namely, the four-way valve corresponding to the heating mode is kept to work in the second state to obtain the; if the outlet temperature of the indoor heat exchanger is less than or equal to the preset temperature, the air conditioning system is in a refrigeration mode at the moment and conflicts with a mode input by a user, the control mode of the four-way valve is not matched with the operation mode input by the user, namely, the control mode of the four-way valve is not matched with the outdoor unit, the indoor unit needs to change the power-on condition of the four-way valve, namely, the control mode of the four-way valve corresponding to the heating mode is switched from heating power-on to refrigeration power-off, so that the four-way valve works in a first state.
According to a specific embodiment of the present invention, as shown in fig. 2, the control method of the air conditioning system includes the steps of:
s101: and controlling the air conditioning system to start.
S102: and detecting an air conditioner operation mode input by a user.
S103: if the air blowing mode is input by the user, the process returns to step S102.
S104: if the user inputs the cooling mode, step S106 is performed.
S105: if the user inputs a heating mode, step S110 is performed.
S106: and controlling the four-way valve to work in a power-off state.
S107: and judging whether the temperature of the T inner tube is greater than a preset temperature or not.
If yes, go to step S108; if not, step S109 is performed.
S108: the power-on mode of the four-way valve is not matched with that of the outdoor unit, and the working state of the four-way valve needs to be changed by an internal unit program, namely the working state of the four-way valve is switched into the power-on state.
S109: the power-on mode of the four-way valve is matched with that of the outdoor unit, and the power-on condition of the four-way valve is not required to be changed by the program of the indoor unit, namely, the working state power-off state of the four-way valve is kept.
S110: and controlling the four-way valve to work in an electrified state.
S111: and judging whether the temperature of the T inner tube is greater than a preset temperature or not.
If yes, go to step S112; if not, step S113 is performed.
S112: the power-on mode of the four-way valve is matched with that of the outdoor unit, and the working state of the four-way valve is kept to be the power-on state without changing the working state of the indoor unit program.
S113: the power-on mode of the four-way valve is not matched with that of the outdoor unit, and the working state of the four-way valve needs to be changed by an internal unit program, namely the working state power-off state of the four-way valve is switched.
Therefore, in the embodiment of the invention, whether the power-off mode is matched with the operation mode input by the user is judged by judging the control mode of the four-way valve of the air-conditioning system, and the control mode of the four-way valve is switched when the two modes are not matched, namely the control method of heating to obtain power and refrigerating to lose power is switched to the control mode of refrigerating to obtain power and heating to lose power, so that the universal distribution with the external machines of different manufacturers is realized, and the stock is solved and the sales volume is increased for the sellers and the manufacturers in a separate selling mode.
In summary, according to the control method of the air conditioning system provided by the embodiment of the present invention, firstly, an operation mode input by a user is received, then, a four-way valve control manner corresponding to the operation mode is obtained according to the operation mode input by the user, the four-way valve of the air conditioning system is controlled to operate according to the corresponding four-way valve control manner, and the outlet temperature of the indoor heat exchanger is detected, and then, whether the four-way valve control manner matches the operation mode input by the user is determined according to the outlet temperature of the indoor heat exchanger, so that whether the indoor unit matches the outdoor unit or not can be automatically identified, so that the same indoor unit can be matched with different outdoor units, refrigeration when the user needs refrigeration, heating when the user needs heating.
Fig. 3 is a block schematic diagram of an air conditioning system according to an embodiment of the present invention. As shown in fig. 3, the air conditioning system 100 includes: a receiving module 10, a temperature detection module 20 and a control module 30.
The receiving module 10 is configured to receive an operation mode input by a user; the temperature detection module 20 is used for detecting the outlet temperature of the indoor heat exchanger; the control module 30 is respectively connected to the receiving module 10 and the temperature detecting module 20, and the control module 30 is configured to obtain a four-way valve control mode corresponding to an operation mode according to the operation mode input by a user, control the four-way valve 2 of the air conditioning system to operate according to the corresponding four-way valve control mode, and determine whether the four-way valve control mode matches the operation mode input by the user according to an outlet temperature of the indoor heat exchanger.
The operation modes of the user input received by the receiving module 10 may include three modes, namely, an air supply mode, a cooling mode and a heating mode. As shown in fig. 4, a pipeline temperature sensing bulb 6, i.e., a temperature detection module 20, may be installed on a pipeline connecting an outlet of the indoor heat exchanger 5 and the four-way valve 2 to detect a temperature of an outlet of the indoor heat exchanger 5, i.e., a cooling outlet or a heating inlet.
It should be noted that, the pipeline connecting the outlet of the indoor heat exchanger 5 and the four-way valve 2 may be a T-inner pipe of the air conditioning system.
It should be understood that, before the user inputs the operation mode, the user inputs a power-on command through the remote controller or the wire controller to control the air conditioner to be powered on, after the air conditioner is powered on, the user may input a mode command, such as an air supply mode command, a cooling mode command or a heating mode command, through the remote controller or the wire controller of the air conditioner, and the receiving module 10 of the air conditioning system may receive the three operation mode commands of air supply, cooling and heating input by the user.
When receiving a refrigerating mode instruction, controlling the air conditioning system to operate in a refrigerating mode, wherein the refrigerating principle of the air conditioning system is as follows: when the air conditioning system is in a refrigeration mode, high-temperature and high-pressure gas refrigerant discharged by the compressor 1 flows through the four-way valve 2, enters the outdoor heat exchanger 3 (a condenser at this time) for heat dissipation, is throttled by the electronic expansion valve 4 to form low-temperature and low-pressure refrigerant, enters the indoor heat exchanger 5 (an evaporator at this time) for heat absorption and evaporation, flows into the gas-liquid separator 7 for gas-liquid separation, then returns to the compressor 1 for circulation, and stores liquid refrigerant in the gas-liquid separator 7.
As shown in fig. 4, the heating principle of the air conditioning system is as follows: when the air conditioning system is in a heating mode, heating is performed by switching the direction of the four-way valve 2, high-temperature and high-pressure gas refrigerant discharged by the compressor 1 flows through the four-way valve 2, enters the indoor heat exchanger 5 (a condenser at this time) for heat dissipation, and is throttled by the electronic expansion valve 4 to form low-temperature and low-pressure refrigerant, the low-temperature and low-pressure refrigerant enters the outdoor heat exchanger 3 (an evaporator at this time) for heat absorption and evaporation, then flows into the gas-liquid separator 7 for gas-liquid separation, the gas refrigerant returns to the compressor 1 for circulation, and the liquid refrigerant is stored in the gas-liquid separator 7.
Specifically, the control module 30 is configured to obtain the four-way valve control mode corresponding to the operation mode according to the operation mode input by the user, where if the operation mode received by the receiving module 10 of the air conditioning system is the air blowing mode, the control module 30 cannot obtain the four-way valve control mode corresponding to the air blowing mode according to the air blowing mode input by the user. That is, in the air blowing mode, the control module 30 cannot acquire the four-way valve control method, and thus cannot control the four-way valve 2 of the air conditioning system to operate according to the four-way valve control method.
If the operation mode received by the receiving module 10 of the air conditioning system by the user is the cooling mode, the control module 30 obtains the four-way valve control mode corresponding to the cooling mode according to the cooling mode input by the user, for example, controls the four-way valve 2 of the air conditioning system to operate in the first state according to the four-way valve control mode corresponding to the cooling mode.
If the operation mode received by the receiving module 10 of the air conditioning system by the user is the heating mode, the control module 30 obtains the four-way valve control mode corresponding to the heating mode according to the heating mode input by the user, for example, controls the four-way valve 2 of the air conditioning system to operate in the second state according to the four-way valve control mode corresponding to the heating mode.
Wherein, according to an embodiment of the present invention, the first state may be a power-off state and the second state may be a power-on state.
That is, in the embodiment of the present invention, if the user inputs an air blowing mode, the control module 30 does not control the four-way valve 2, and continues to detect the operation mode for receiving the user input; if the user inputs a refrigeration mode, the control module 30 controls the four-way valve 2 to work in a first state, namely a power-off state according to a control mode of refrigeration and power-off of the four-way valve; if the user inputs a heating mode, the control module 30 controls the four-way valve 2 to work in the second state, i.e., the power-on state, according to the control mode of the four-way valve for heating and power-on, so that the four-way valve 2 of the air conditioning system can be controlled to work in the corresponding state according to the operation mode input by the user and the control mode of the four-way valve which is preset.
According to an embodiment of the present invention, the control module 30 is further configured to maintain the corresponding four-way valve control mode when the four-way valve control mode matches the operation mode input by the user, and switch the corresponding four-way valve control mode when the four-way valve control mode does not match the operation mode input by the user.
That is, maintaining the corresponding four-way valve control manner may mean that if the current user input is that the operation mode is the cooling mode, the four-way valve control manner of the air conditioning system is maintained in a power-off state, or if the current user input is that the operation mode is the heating mode, the four-way valve control manner of the air conditioning system is in a power-on state.
In addition, switching the corresponding four-way valve control mode may refer to switching the four-way valve control mode of the air conditioning system from a power-on state to a power-off state if the operation mode input by the current user is the cooling mode, or switching the four-way valve control mode of the air conditioning system from the power-off state to the power-on state if the operation mode input by the current user is the heating mode.
According to an embodiment of the present invention, the control module 30 is further configured to control the four-way valve 2 to operate in the first state when the operation mode input by the user is the cooling mode, wherein if the outlet temperature of the indoor heat exchanger is less than or equal to the preset temperature, the control module 30 determines that the four-way valve control mode is matched with the operation mode input by the user, and maintains the four-way valve control mode corresponding to the cooling mode in the first state; if the outlet temperature of the indoor heat exchanger is higher than the preset temperature, the control module 30 determines that the four-way valve control mode is not matched with the operation mode input by the user, and switches the four-way valve control mode corresponding to the refrigeration mode to the second state.
The preset temperature can be preset in the control module 30 in advance, the value of the preset temperature can be calibrated according to the actual operation mode of the air conditioning system, and the values can be the same or different in different operation modes of the air conditioner, and only the reliable operation of the compressor is ensured and no misjudgment occurs.
Specifically, when the operation mode input by the user is the refrigeration mode, the control module 30 controls the four-way valve 2 to operate in the first state, that is, the power-off state, according to the control mode of refrigeration power-off, wherein if the detected outlet temperature of the indoor heat exchanger is less than or equal to the preset temperature, it indicates that the air-conditioning system 100 is in the refrigeration mode at this time, the control mode of the four-way valve is matched with the operation mode input by the user, that is, the control mode of the four-way valve is matched with the outdoor unit, and the indoor unit does not need to change the power-on condition of the four-way valve 2, and only needs to keep the four-way; if the outlet temperature of the indoor heat exchanger is higher than the preset temperature, it is indicated that the air conditioning system 100 is in the heating mode at this time and conflicts with the refrigeration mode input by the user, the four-way valve control mode is not matched with the operation mode input by the user, that is, the four-way valve control mode is not matched with the outdoor unit, the indoor unit needs to change the power-on condition of the four-way valve 2, that is, the four-way valve control mode corresponding to the refrigeration mode is switched from the refrigeration power-off mode to the heating power-on mode, so that the four-way valve 2 works.
According to an embodiment of the present invention, the control module 30 is further configured to control the four-way valve 2 to operate in the second state when the operation mode input by the user is the heating mode, wherein if the outlet temperature of the indoor heat exchanger is greater than the preset temperature, the control module 30 determines that the four-way valve control mode is matched with the operation mode input by the user, and maintains the four-way valve control mode corresponding to the heating mode in the second state; if the outlet temperature of the indoor heat exchanger is less than or equal to the preset temperature, the control module 30 determines that the four-way valve control mode is not matched with the operation mode input by the user, and switches the four-way valve control mode corresponding to the heating mode to the first state.
That is, when the operation mode input by the user is the heating mode, the four-way valve 2 is controlled to work in the second state according to the control mode of heating and power-on, that is, the electric state is obtained, wherein if the outlet temperature of the indoor heat exchanger is greater than the preset temperature, it indicates that the air-conditioning system 100 is in the heating mode at this time, the control mode of the four-way valve is matched with the operation mode input by the user, that is, the control mode of the four-way valve is matched with the outdoor unit, and the indoor unit keeps the four-way valve 2 corresponding to the heating mode to work in the second state, that is, the electric state is obtained without; if the outlet temperature of the indoor heat exchanger is less than or equal to the preset temperature, it is indicated that the air conditioning system 100 is in the cooling mode at this time and conflicts with the mode input by the user, the four-way valve control mode is not matched with the operation mode input by the user, that is, the four-way valve control mode is not matched with the outdoor unit, the indoor unit needs to change the power-on condition of the four-way valve 2, that is, the four-way valve control mode corresponding to the heating mode is switched from heating power-on to cooling power-off, so that the four-way valve 2 works in the first state.
Therefore, in the embodiment of the invention, whether the power-off mode is matched with the operation mode input by the user is judged by judging the control mode of the four-way valve of the air-conditioning system, and the control mode of the four-way valve is switched when the two modes are not matched, namely the control method of heating to obtain power and refrigerating to lose power is switched to the control mode of refrigerating to obtain power and heating to lose power, so that the universal distribution with the external machines of different manufacturers is realized, and the stock is solved and the sales volume is increased for the sellers and the manufacturers in a separate selling mode.
In summary, according to the air conditioning system provided by the embodiment of the present invention, the control module obtains the four-way valve control mode corresponding to the operation mode according to the operation mode input by the user and received by the receiving module, controls the four-way valve of the air conditioning system to operate according to the corresponding four-way valve control mode, and determines whether the four-way valve control mode matches with the operation mode input by the user according to the outlet temperature of the indoor heat exchanger detected by the temperature detecting module, so as to automatically identify whether the indoor unit matches with the outdoor unit, so that the same indoor unit can be used for matching with different outdoor units, thereby ensuring that the user can refrigerate when the user needs refrigeration, and heat when the user needs heating.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A control method of an air conditioning system is characterized by comprising the following steps:
receiving an operation mode input by a user, wherein the operation mode comprises an air supply mode, a cooling mode and a heating mode;
when the operation mode input by a user is a heating mode or a cooling mode, an indoor unit of the air-conditioning system acquires a four-way valve control mode corresponding to the operation mode according to the operation mode input by the user and controls a four-way valve of the air-conditioning system to work according to the corresponding four-way valve control mode;
detecting the outlet temperature of the indoor heat exchanger;
the indoor unit judges whether the four-way valve control mode is matched with the operation mode input by the user or not according to the outlet temperature of the indoor heat exchanger;
when the operation mode input by the user is the air supply mode, the operation mode input by the user is continuously detected and received.
2. The control method of an air conditioning system according to claim 1,
if the four-way valve control mode is matched with the operation mode input by the user, the corresponding four-way valve control mode is kept;
and if the four-way valve control mode is not matched with the operation mode input by the user, switching the corresponding four-way valve control mode.
3. The control method of an air conditioning system according to claim 1, wherein when the operation mode inputted by the user is a cooling mode, the four-way valve is controlled to operate in a first state in which,
if the outlet temperature of the indoor heat exchanger is less than or equal to the preset temperature, judging that the four-way valve control mode is matched with the operation mode input by the user, and keeping the four-way valve control mode corresponding to the refrigeration mode to be in the first state;
and if the outlet temperature of the indoor heat exchanger is higher than the preset temperature, judging that the four-way valve control mode is not matched with the operation mode input by the user, and switching the four-way valve control mode corresponding to the refrigeration mode to a second state.
4. The control method of an air conditioning system according to claim 1, wherein when the operation mode input by the user is a heating mode, the four-way valve is controlled to operate in a second state, wherein,
if the outlet temperature of the indoor heat exchanger is higher than the preset temperature, judging that the four-way valve control mode is matched with the operation mode input by the user, and keeping the four-way valve control mode corresponding to the heating mode to be in the second state;
and if the outlet temperature of the indoor heat exchanger is less than or equal to the preset temperature, judging that the four-way valve control mode is not matched with the operation mode input by the user, and switching the four-way valve control mode corresponding to the heating mode to a first state.
5. The control method of an air conditioning system according to claim 3 or 4, wherein the first state is a power-off state and the second state is a power-on state.
6. An air conditioning system, comprising:
the receiving module is used for receiving operation modes input by a user, wherein the operation modes comprise an air supply mode, a cooling mode and a heating mode;
the temperature detection module is used for detecting the outlet temperature of the indoor heat exchanger;
the control module is respectively connected with the receiving module and the temperature detection module, and is used for acquiring a four-way valve control mode corresponding to the operation mode according to the operation mode input by the user when the operation mode input by the user is a refrigeration mode or a heating mode, controlling the four-way valve of the air conditioning system to work according to the corresponding four-way valve control mode, and judging whether the four-way valve control mode is matched with the operation mode input by the user according to the outlet temperature of the indoor heat exchanger, wherein the control module is arranged in an indoor unit of the air conditioning system;
and when the operation mode input by the user is an air supply mode, the control module continuously detects and receives the operation mode input by the user through the receiving module.
7. The air conditioning system of claim 6, wherein the control module is further configured to maintain the corresponding four-way valve control scheme when the four-way valve control scheme matches the user-entered operating mode, and to switch the corresponding four-way valve control scheme when the four-way valve control scheme does not match the user-entered operating mode.
8. The air conditioning system of claim 6, wherein the control module is further configured to control the four-way valve to operate in a first state when the user-input operation mode is a cooling mode, wherein,
if the outlet temperature of the indoor heat exchanger is less than or equal to the preset temperature, the control module judges that the four-way valve control mode is matched with the operation mode input by the user, and keeps the four-way valve control mode corresponding to the refrigeration mode to be in the first state;
and if the outlet temperature of the indoor heat exchanger is higher than the preset temperature, the control module judges that the four-way valve control mode is not matched with the operation mode input by the user, and switches the four-way valve control mode corresponding to the refrigeration mode to a second state.
9. The air conditioning system of claim 6, wherein the control module is further configured to control the four-way valve to operate in a second state when the user-input operation mode is a heating mode, wherein,
if the outlet temperature of the indoor heat exchanger is higher than the preset temperature, the control module judges that the four-way valve control mode is matched with the operation mode input by the user and keeps the four-way valve control mode corresponding to the heating mode to be in the second state;
if the outlet temperature of the indoor heat exchanger is less than or equal to the preset temperature, the control module judges that the four-way valve control mode is not matched with the operation mode input by the user, and switches the four-way valve control mode corresponding to the heating mode to a first state.
10. The air conditioning system of claim 8 or 9, wherein the first state is a power-off state and the second state is a power-on state.
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| CN108562010B (en) * | 2018-03-02 | 2019-12-27 | 珠海格力电器股份有限公司 | Networking method and device of air conditioning unit |
| CN108826540A (en) * | 2018-05-10 | 2018-11-16 | 海信（山东）空调有限公司 | A kind of air-conditioning and its control method, device |
| CN113108422B (en) * | 2021-05-21 | 2022-09-30 | 特灵空调系统(中国)有限公司 | Air conditioner control method and system, air conditioning unit and readable storage medium |
| CN113465103A (en) * | 2021-06-18 | 2021-10-01 | 青岛海尔空调电子有限公司 | Method and device for controlling air conditioner and air conditioner |
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| JP2011007378A (en) * | 2009-06-24 | 2011-01-13 | Panasonic Corp | Ceiling embedded type air conditioner |
| CN105066332A (en) * | 2015-07-21 | 2015-11-18 | 珠海格力电器股份有限公司 | Outdoor unit control method and device |
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| JP2011007378A (en) * | 2009-06-24 | 2011-01-13 | Panasonic Corp | Ceiling embedded type air conditioner |
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