CN114688607A - Air conditioner control method and device and air conditioner - Google Patents
Air conditioner control method and device and air conditioner Download PDFInfo
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- CN114688607A CN114688607A CN202011633934.0A CN202011633934A CN114688607A CN 114688607 A CN114688607 A CN 114688607A CN 202011633934 A CN202011633934 A CN 202011633934A CN 114688607 A CN114688607 A CN 114688607A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/18—Details or features not otherwise provided for combined with domestic apparatus
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner control method and device and an air conditioner; the air conditioner control method includes: the air conditioner is in a heating mode, and controls the heating of the internal machine and controls the heat storage part to store heat; the air conditioner is in a defrosting mode, and controls the internal machine to heat and controls the heat storage part to release heat. The method can avoid the decrease of the room temperature in the defrosting mode, and can provide a comfortable heating environment.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner control method, an air conditioner control device and an air conditioner.
Background
In the heating mode of the existing air conditioner, the heat exchanger of the outer machine is frosted, so that the defrosting is required periodically.
The existing defrosting process has the following two problems: 1) in the defrosting mode, the indoor heat exchanger absorbs ambient heat to be used as an evaporator, so that the indoor temperature is reduced; and the inner machine fan is stopped to inhibit the inner machine heat exchanger from absorbing the surrounding heat. Another problem is caused by the stop of the operation of the internal machine fan: 2) because the heat absorption of the internal machine heat exchanger is inhibited, but the refrigerant is not completely evaporated, the refrigerant returns to the compressor in a two-phase state, and the reliability of the compressor is influenced; in order to ensure the normal operation of the compressor, the problem of the drop of the room temperature caused by the above problem is properly ignored.
It can be seen that the conventional air conditioner causes a drop in the room temperature during defrosting.
Disclosure of Invention
The invention solves the problem that the air conditioner can cause the room temperature to drop in the defrosting process.
In order to solve the above problems, the present invention provides a method for controlling an air conditioner, the air conditioner including an external unit, a heat storage unit, and at least one internal unit, the external unit communicating the heat storage unit and each of the internal units through a pipe; the air conditioner control method includes: the air conditioner is in a heating mode, and controls the inner machine to heat and controls the heat storage part to store heat; the air conditioner is in a defrosting mode, and controls the internal machine to heat and controls the heat storage part to release heat.
Compared with the prior art, the embodiment can achieve the following technical effects: heat is stored through the heat storage part, so that the unit can be ensured to continuously heat; and when defrosting, the heat storage part releases heat for defrosting; the defrosting time can be shortened, and meanwhile, the room temperature can be prevented from being reduced; therefore, a comfortable heating environment can be provided, and the user experience of the product is improved.
In one embodiment of the invention, the air conditioner is in a defrosting mode, and controls the internal machine to heat and controls the heat storage part to release heat; the method comprises the following steps: controlling the air conditioner to enter a pre-defrosting state according to the heat of the heat storage part; and when the air conditioner meets a first switching condition, controlling a four-way valve to be in a closed state and controlling the air conditioner to enter a defrosting state.
In this embodiment, whether to enter the preliminary defrosting state and the defrosting state is determined according to whether the heat of the heat storage portion reaches the heat demand for defrosting.
In one embodiment of the present invention, the heat storage portion includes a heat storage tank, and the external unit is communicated with the heat storage tank; the controlling the air conditioner to enter a preliminary defrosting state according to the heat of the heat storage part includes: judging whether the heat capacity of the heat storage tank is larger than or equal to a preset heat value or not; and when the heat capacity is greater than or equal to the preset heat value, controlling the outer machine to enter the defrosting preparation state.
In one embodiment of the present invention, the heat capacity H ═ D × (S + F) + Ti × C; wherein D is the water discharge amount value of the heat storage tank; s is the specific heat value of water; f is the melting heat value of water; the Ti is preset defrosting time; and C is the heating capacity of the air conditioner.
In this embodiment, a calculation method of the heat capacity is provided, which enables calculation of the heat capacity, whereby control to enter the preliminary defrosting state can be achieved.
In one embodiment of the invention, the first switching condition comprises: the time for the air conditioner to enter the defrosting preparation state is at least 10 min.
In this embodiment, the air conditioner is controlled to be in the preliminary defrosting state, and when the air conditioner reaches the optimal state capable of defrosting, the air conditioner is controlled to enter the defrosting state, so as to achieve a better defrosting effect.
In one embodiment of the present invention, the controlling the air conditioner to enter the defrosting state includes: and controlling the frequency of a compressor of the outer machine to be a defrosting frequency value, wherein the defrosting frequency value is 60-100 Hz.
In one embodiment of the present invention, the controlling the air conditioner to enter the defrosting state includes: and controlling the opening degree of a second expansion valve of the internal machine to be a defrosting opening value, wherein the defrosting opening value is 100-140 Pls.
In this embodiment, in the defrosting state, if the frequency of the compressor is too high, the heat exchange amount of the evaporator is insufficient, and therefore, the liquid return problem is caused, and the reliability of the product is affected; and the frequency of the compressor is too low, which results in insufficient heat for defrosting, resulting in a long defrosting time, or a defrosting residue may occur. Therefore, the appropriate defrosting frequency value is determined, the problems can be well solved, the heat exchange quantity of the evaporator is ensured, the liquid return problem is avoided, sufficient heat is provided for defrosting, and the defrosting time is shortened.
On the other hand, in the defrosting state, an excessively large opening degree of the second expansion valve of the inner unit may cause an excessive amount of heat to be distributed to the inner unit, resulting in poor defrosting capability; and if the opening degree is too small, the heat distributed to the internal machine is too small, and at least the room temperature is too low, so that indoor heating is affected, and discomfort is brought to users. Therefore, a proper defrosting opening value is set, the problem can be well solved, defrosting capacity is guaranteed, sufficient heating is provided indoors, and user experience is improved.
In one embodiment of the present invention, the air conditioner control method further includes: when the air conditioner finishes defrosting, controlling the air conditioner to enter a prepared heating state; and when the air conditioner meets a second switching condition, controlling a four-way valve to be in an opening state and controlling the air conditioner to recover to the heating mode.
In one embodiment of the invention, the second handover condition comprises at least one of the following conditions: the time for the air conditioner to enter the heating preparation state is at least 10 min; the pressure difference between the exhaust pressure and the suction pressure of the outdoor unit is at least 2.5 MPa; the heat exchanger temperature of the external unit is at least 10 ℃.
In this embodiment, when defrosting is completed, the air conditioner does not immediately return to the heating mode, but first enters the preliminary heating state, and when the air conditioner is made to reach a condition that the air conditioner can be switched to the heating mode, the air conditioner is controlled to enter the heating mode, so that the reliability of the operation of the air conditioner is improved.
In summary, when the air conditioner is switched from the heating mode to the defrosting mode, the air conditioner enters the preliminary defrosting state to perform transition; and when the defrosting mode is recovered to the heating mode, the state of the preparation heating is entered for transition. The defrosting efficiency of the air conditioner is ensured in the defrosting mode, and the reliability of the operation of the air conditioner is improved.
In one embodiment of the invention, the heat storage part comprises a floor heating hydraulic system, and the outdoor unit can exchange heat with the floor heating hydraulic system; the air conditioner is for heating the mode, still includes: and controlling the outer machine and the floor heating hydraulic system to be in a first heat exchange state, wherein the first heat exchange state is that the outer machine supplies heat to the floor heating hydraulic system.
In the embodiment, in the heating mode, the floor heating hydraulic system can provide heat for the indoor environment while storing heat, so that the indoor temperature and the comfort level can be improved.
In one embodiment of the invention, the air conditioner is in a defrosting mode, and controls the internal machine to heat and controls the heat storage part to release heat; the method comprises the following steps: when the floor heating temperature value is greater than or equal to a preset temperature value, controlling the external unit to enter a defrosting preparation state; and when the air conditioner meets a first switching condition, controlling a four-way valve to be in a closed state and controlling the air conditioner to enter a defrosting state.
In one embodiment of the invention, the preset temperature value is at least 30 ℃.
In this embodiment, in order to ensure that the floor heating hydraulic system supplies heat to the room, when the floor heating temperature value is greater than or equal to the preset temperature value, the air conditioner is controlled to enter the preliminary defrosting state and the defrosting state. Thereby avoid the indoor temperature to descend, lead to the comfort level to reduce, influence user experience.
In one embodiment of the present invention, the controlling the air conditioner to enter the defrosting state includes: and controlling the outer machine and the floor heating hydraulic system to be in a second heat exchange state, wherein the second heat exchange state is that the floor heating hydraulic system supplies heat to the outer machine.
In an embodiment of the present invention, the controlling the air conditioner to enter the defrosting state further includes: when the floor heating temperature value is smaller than a preset temperature value, controlling the opening degree of a second expansion valve of the inner machine to be increased, and controlling an inner machine fan of the inner machine to stop rotating; and controlling the outer machine and the floor heating hydraulic system to be in a third heat exchange state, wherein the third heat exchange state is that the floor heating hydraulic system and the outer machine stop exchanging heat.
In one embodiment of the present invention, the controlling to increase the opening degree of the second expansion valve of the internal machine includes: controlling an opening degree of the second expansion valve to increase from a defrost opening degree value to a fixed opening degree value; the control the internal machine fan of internal machine stops rotating, includes: controlling the internal fan to start to stop rotating from a weak wind mode; the control outer machine with floor heating hydraulic system is the third heat transfer state, includes: and controlling the heat exchange water pump to be in a closed state.
In another aspect, the present invention provides an air conditioner control apparatus, wherein the air conditioner includes an external unit, a heat storage unit, and at least one internal unit, and the external unit communicates the heat storage unit and each of the internal units via a pipe; the air conditioner control device includes: the heating module is used for controlling the heating of the internal machine and controlling the heat storage of the heat storage part; and the defrosting module is used for controlling the heating of the internal machine and controlling the heat release of the heat storage part.
In still another aspect, the present invention provides an air conditioner including: a computer-readable storage medium storing a computer program that when read and executed by the packaged IC, implements the air conditioner control method according to any one of the above embodiments, and a packaged IC.
Drawings
Fig. 1 is a flowchart illustrating a control method of an air conditioner according to a first embodiment of the present invention.
Fig. 2 is a detailed flowchart illustrating a control method of the air conditioner shown in fig. 1.
Fig. 3 is a block diagram of an air conditioner control device according to a second embodiment of the present invention.
Fig. 4 is a block diagram of a readable storage medium according to a fourth embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
[ first embodiment ] A method for manufacturing a semiconductor device
Referring to fig. 1, a method for controlling an air conditioner according to a first embodiment of the present invention is shown. The air conditioner that performs the air conditioner control method includes, for example, an outer unit that communicates the heat storage unit and each of the inner units through a pipe, a heat storage unit, and at least one inner unit. The air conditioner control method includes, for example:
s110: the air conditioner is in a heating mode, and controls the internal machine to heat and controls the heat storage part to store heat.
When the number of the internal machines is plural, the plural internal machines respectively heat in the heating mode. The heat storage part can be provided with a hydraulic module, and the hydraulic module absorbs heat to achieve the purpose of heat storage.
S130: the air conditioner is in a defrosting mode, and controls the internal machine to heat and controls the heat storage part to release heat.
When the internal machines are multiple, at least one of the internal machines can be controlled to be used as an evaporator to refrigerate, at least one of the other internal machines can be controlled to be used as a condenser to heat, and meanwhile, the heat storage part is controlled to release heat so as to defrost the external machine.
Referring to fig. 2, in a specific embodiment, the S130 includes, for example:
s131: and controlling the air conditioner to enter a pre-defrosting state according to the heat of the heat storage part.
S132: and when the air conditioner meets a first switching condition, controlling a four-way valve to be in a closed state and controlling the air conditioner to enter a defrosting state.
With continued reference to fig. 2, in another embodiment, the air conditioner control method further includes, for example:
s140: and when the air conditioner finishes defrosting, controlling the air conditioner to enter a prepared heating state.
S150: and when the air conditioner meets a second switching condition, controlling a four-way valve to be in an opening state and controlling the air conditioner to recover to the heating mode.
The following describes the air conditioner control method in detail, taking as an example that the heat storage unit includes a heat storage tank; the water power module is arranged on the heat storage tank, and the outer machine is communicated with the heat storage tank.
The step S131 may be determining whether the heat capacity of the heat storage tank is less than a preset heat value. The preset heat value can be obtained in advance according to experimental calculation, and the heat required during defrosting can be completed. The preset heat value can be determined according to different models and different volumes of heat storage tanks.
Wherein the heat capacity H ═ D × (S + F) + Ti × C; d is the water discharge quantity value of the heat storage tank; s is the specific heat value of water; f is the melting heat value of water; the Ti is preset defrosting time; and C is the heating capacity of the air conditioner. C ═ Te (Te)1-Te2) X is; wherein, the Te1The indoor temperature value of the indoor unit is obtained; te is2The outdoor temperature value is the outdoor temperature value of the outdoor unit; and I is a thermal load coefficient.
Correspondingly, the preset heat value can also be calculated by the formula. For example, by maximizing the amount of frost that the air conditioner will frost, and then determining the minimum heat capacity that the thermal storage tank will need when defrosting the air conditioner can be completed.
In the above formula: the D may be a water discharge amount at the time of defrosting calculated in a preliminary experiment, and may be confirmed by performing an experiment on the air conditioner. The specific heat value S is the heat required for increasing the temperature of 1g of water by 1 ℃, and the heat required for increasing the temperature of 1g of water by 5 ℃ by S is about 5 multiplied by 4.217J/g; the temperature of 5 ℃ is the temperature at which the melted water can not be frozen again and can be directly discharged in a liquid state, and tests confirm that the defrosting temperature can be up to more than 5 ℃ to defrost and discharge the liquid water.
The fusion heat value F is the heat required for 1g of ice to 1g of water, and is about 333.6J/g. The defrosting time Ti is a defrosting duration obtained under a defrosting test condition, that is, at 0-2 ℃, and the air conditioner frosts most under the defrosting test condition. The heating capacity C of the air conditioner is the maximum capacity of all the indoor units, or the heating capacity before defrosting, that is, the capacity of the indoor unit when the air conditioner operates in the heating mode before entering the defrosting mode.
In S131, when the heat capacity is greater than or equal to the preset heat value, the heat capacity of the heat storage tank may defrost the external unit, and thus the external unit is controlled to enter the defrosting preparation state.
The entering of the outer unit into the preliminary defrosting state includes: controlling to decrease a frequency of a compressor of the outer unit, and controlling to increase an opening degree of a first expansion valve of the outer unit.
Specifically, the controlling of the frequency of the compressor to decrease may be controlling of the frequency of the compressor to decrease from a normal operating state to a minimum frequency value. The minimum frequency value may be a minimum value of a frequency theoretically attainable by the compressor.
The controlling of the opening degree of the first expansion valve may be controlling of the opening degree of the first expansion valve to increase to a maximum opening degree value; it is also possible to increase the opening degree of the first expansion valve to the maximum opening degree value after entering the preliminary defrosting state for a while. That is, in the preliminary defrosting state, the first expansion valve is fully opened.
The four-way valve is in the preliminary defrosting state before being switched to the off state, and the S132 is performed when the outdoor unit is in the preliminary defrosting state. Wherein the first switching condition comprises: and the time for the air conditioner or the outdoor unit to enter the defrosting preparation state is at least 10 min.
When the air conditioner reaches at least one of the above conditions, executing S132 includes: and controlling the four-way valve to be in a closed state and controlling the air conditioner to enter a defrosting state.
Wherein controlling the air conditioner to enter the defrost state comprises: and controlling an external machine of the air conditioner to perform corresponding actions and controlling an internal machine of the air conditioner to perform corresponding actions.
The controlling of the outdoor unit of the air conditioner to perform corresponding actions includes: controlling to increase the frequency of the compressor may be increasing the frequency of the compressor by a defrost frequency value, for example between 60-100 Hz; and controlling an outer unit fan of the outer unit to stop rotating.
When the air conditioner is switched from the preliminary defrosting state to the defrosting state, for example, controlling the frequency of the compressor to increase from the minimum frequency value to the defrosting frequency value; maintaining the opening degree value of the first expansion valve at the maximum opening degree value; and controlling the outer machine fan to be converted from a normal rotation state to stop rotating.
When the air conditioner is provided with a plurality of internal machines, the control of the internal machines of the air conditioner to perform corresponding actions comprises the following steps: controlling a first internal machine to act so as to continue heating; and controls the other second internal machine to perform general heating control. Specifically, the controlling the first internal machine to operate to continue heating includes: controlling the opening degree of a second expansion valve of the first internal machine to be a defrosting opening degree value, wherein the defrosting opening degree value is 100 plus 140 Pls; and controlling the inner fan of the first inner machine to be in a weak wind state, and also reducing the rotating speed value of the inner fan.
When the air conditioner is switched from the preliminary defrosting state to the defrosting state, for example, the opening degree of the second expansion valve of the first internal machine is controlled to be decreased to the defrosting opening value; and controlling the indoor unit fan of the first indoor unit to change from a normal working state to the weak wind state.
Therefore, when the air conditioner is in the defrosting state, the first inner machine can be kept to heat continuously, and therefore the indoor temperature cannot be reduced.
In S140, when the air conditioner completes defrosting, the air conditioner is controlled to enter a heating preparation state, that is, the outdoor unit is controlled to enter the heating preparation state.
The preparatory heating state includes: controlling the compressor of the outer unit to decrease the frequency may be decreasing the frequency of the compressor to the minimum frequency value, for example, decreasing the frequency of the compressor from the defrost frequency value to the minimum frequency value.
In the preheating state, keeping the opening degree of the first expansion valve as the maximum opening degree value, keeping the outer fan in a stop state, keeping the opening degree of the second expansion valve as a defrosting opening degree value, and keeping the inner fan in a weak wind state; of course, it is also included to keep the second internal machine under normal heating control.
In the S150, the second switching condition includes at least one of the following conditions: the condition 1) is that the time for the air conditioner or the outdoor unit to enter the heating preparation state is at least 10 min; condition 2) a difference between high and low pressures between an exhaust pressure and a suction pressure of the outdoor unit is at least 2.5 MPa; condition 3) the heat exchanger temperature of the external unit is at least 10 ℃.
And when the air conditioner meets at least one condition, controlling the four-way valve to be switched to an open state, and controlling the air conditioner to recover to the heating mode. For example, the air conditioner is controlled to be restored to the heating mode before the preliminary defrosting state.
Controlling the frequency of the compressor of the outer unit to increase from the minimum frequency value to a target frequency value, which may be a frequency value less than the frequency value of the compressor before the preliminary defrost state, when the air conditioner is controlled to be restored to the heating mode.
In another embodiment, the heat storage part comprises a floor heating hydraulic system, and the floor heating hydraulic system can exchange heat with the outdoor unit. Different from the above embodiment, the air conditioner control method includes, for example:
in S110, when the air conditioner is in the heating mode, the air conditioner further controls the external unit and the floor heating hydraulic system to be in a first heat exchange state, where the first heat exchange state is that the external unit supplies heat to the floor heating hydraulic system.
The outdoor unit supplies heat to the floor heating hydraulic system so as to achieve the purpose of supplying heat indoors.
And the step S131 may be controlling the air conditioner to enter the preliminary defrosting state according to the floor heating temperature value. The floor heating temperature value is at least 30 ℃, and of course, the temperature can also be between 30 and 35 ℃.
For example, when the air conditioner needs defrosting, a floor heating temperature value of the floor heating hydraulic system is obtained, and when the floor heating temperature value is larger than 35 ℃, the air conditioner is controlled to enter the defrosting preparation state.
Wherein, when the S132 is executed, that is, when the air conditioner enters the defrosting state, the method further includes: and controlling the outer unit and the floor heating hydraulic system to be in a second heat exchange state, wherein the second heat exchange state is that the floor heating hydraulic system supplies heat to the outer unit, so that defrosting of the outer unit is performed.
And when the air conditioner is in the defrosting state, if the floor heating temperature value is less than the preset temperature value. In this case: and controlling the outer machine to be in the defrosting state, controlling the inner machine to perform corresponding actions, and controlling the outer machine and the floor heating hydraulic system to be in a third heat exchange state, wherein the third heat exchange state is that the floor heating hydraulic system and the heat storage tank stop exchanging heat.
Wherein, the control of the internal machine to perform corresponding actions includes: controlling the opening value of the second expansion valve of the first inner machine to increase, for example, controlling the opening value of the second expansion valve of the first inner machine to increase from the defrosting opening value to a fixed opening value, where the fixed opening value is, for example, 380-; the method also comprises the step of controlling the inner fan of the first inner machine to reduce the rotating speed, for example, controlling the inner fan of the first inner machine to change from the weak wind state to stop rotating.
On the other hand, the controlling the internal machine to perform corresponding actions further comprises: controlling a second expansion valve of the second internal machine to increase, for example to the fixed opening value; and controlling an inner machine fan of the second inner machine to be kept in a stop state.
Furthermore, control heat storage tank with floor heating hydraulic system includes for the third heat transfer state: and controlling a heat exchange water pump to be in a closed state, wherein the heat exchange water pump is used for controlling water in the floor heating hydraulic system to flow with a copper pipe of the outer unit in an interactive mode so as to exchange heat, and closing the heat exchange water pump to stop the water of the floor heating hydraulic system from flowing so as to stop the heat exchange between the outer unit and the floor heating hydraulic system.
And controlling the first inner machine, the second inner machine and the third heat exchange state to continue until the air conditioner meets the second switching condition, and then controlling the air conditioner to recover to the heating mode.
[ second embodiment ]
Referring to fig. 3, a block diagram of an air conditioner control device according to a second embodiment of the present invention is shown. The air conditioner having the air conditioner control device 300 further includes an external unit communicating the heat storage portion and each of the internal units through a pipe, a heat storage portion, and at least one internal unit, and the air conditioner control device 300 includes, for example: the heating module 310 is used for controlling the inner machine to heat and controlling the heat storage part to store heat; and a defrost mode 330 for controlling the heating of the inner unit and the heat release of the heat storage unit.
In a specific embodiment, the heating module 310 and the defrosting module 330 of the air conditioner control device 300 cooperate to implement the air conditioner control method described in the first embodiment, and are not described herein again.
[ third embodiment ]
A third embodiment of the present invention provides an air conditioner, for example, including an external machine, a heat storage portion, and at least one internal machine. In a specific embodiment, the heat storage portion includes, for example, a heat storage tank, and the external unit communicates with each of the internal units through a pipe. In another embodiment, the heat storage portion includes, for example, a floor heating hydraulic system that can exchange heat with the outer unit.
The air conditioner includes, for example, a packaged IC and a computer-readable storage medium; the computer-readable storage medium stores a computer program that when read and executed by a packaged IC, an air conditioner implements the air conditioner control method according to the first embodiment.
In one embodiment, the packaged IC is, for example, a processor chip electrically connected to the computer-readable storage medium to read and execute the computer program. The packaged IC may also be a packaged circuit board, which is packaged with a processor chip that can read and execute the computer program; of course, the circuit board may also encapsulate the computer-readable storage medium.
The processor chip may further be provided with the air conditioner control device 500 according to the second embodiment, and the processor chip may implement the air conditioner control method according to the first embodiment through the air conditioner control device 500, which is not described herein again.
[ fourth example ] A
Referring to fig. 4, it is a schematic structural diagram of a readable storage medium according to a fourth embodiment of the present invention. The readable storage medium 400 is, for example, a nonvolatile memory, which is, for example: magnetic media (e.g., hard disks, floppy disks, and magnetic tape), optical media (e.g., CDROM disks and DVDs), magneto-optical media (e.g., optical disks), and hardware devices specially constructed for storing and executing computer-executable instructions (e.g., Read Only Memories (ROMs), Random Access Memories (RAMs), flash memories, etc.). The readable storage medium 400 has stored thereon computer-executable instructions 410. The readable storage medium 400 may be executed by one or more processors or processing devices to execute the computer-executable instructions 410 to cause the air conditioner in which the readable storage medium 400 is located to implement the air conditioner control method as described in the first embodiment.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (17)
1. The control method of the air conditioner is characterized in that the air conditioner comprises an outer machine, a heat storage part and at least one inner machine, wherein the outer machine is communicated with the heat storage part and each inner machine through a pipeline; the air conditioner control method includes:
the air conditioner is in a heating mode, and controls the heating of the internal machine and controls the heat storage part to store heat;
the air conditioner is in a defrosting mode, and controls the internal machine to heat and controls the heat storage part to release heat.
2. The air conditioner control method according to claim 1, wherein the air conditioner is in a defrosting mode, and the indoor unit heating is controlled, and the heat storage unit is controlled to release heat; the method comprises the following steps:
controlling the air conditioner to enter a pre-defrosting state according to the heat of the heat storage part;
and when the air conditioner meets a first switching condition, controlling a four-way valve to be in a closed state and controlling the air conditioner to enter a defrosting state.
3. The air conditioner control method according to claim 2, wherein the heat storage unit includes a heat storage tank, and the outdoor unit communicates with the heat storage tank; the controlling the air conditioner to enter a preliminary defrosting state according to the heat of the heat storage part includes:
judging whether the heat capacity of the heat storage tank is greater than or equal to a preset heat value or not;
and when the heat capacity is greater than or equal to the preset heat value, controlling the outer machine to enter the defrosting preparation state.
4. The air conditioner control method according to claim 3, wherein the heat capacity H ═ Dx (S + F) + Ti × C;
wherein D is the water discharge amount value of the heat storage tank; s is the specific heat value of water; f is the melting heat value of water; the Ti is preset defrosting time; and C is the heating capacity of the air conditioner.
5. The air conditioner control method according to claim 2, wherein the first switching condition includes:
the time for the air conditioner to enter the defrosting preparation state is at least 10 min.
6. The air conditioner control method according to claim 2, wherein said controlling the air conditioner to enter a defrost state includes:
and controlling the frequency of a compressor of the outer machine to be a defrosting frequency value, wherein the defrosting frequency value is 60-100 Hz.
7. The air conditioner control method according to claim 2, wherein said controlling the air conditioner to enter a defrost state includes:
and controlling the opening degree of a second expansion valve of the internal machine to be a defrosting opening value, wherein the defrosting opening value is 100-140 Pls.
8. The air conditioner control method according to claim 2, further comprising:
when the air conditioner finishes defrosting, controlling the air conditioner to enter a prepared heating state;
and when the air conditioner meets a second switching condition, controlling a four-way valve to be in an opening state and controlling the air conditioner to recover to the heating mode.
9. The air conditioner control method according to claim 8, wherein the second switching condition includes at least one of the following conditions:
the time for the air conditioner to enter the heating preparation state is at least 10 min;
the pressure difference between the exhaust pressure and the suction pressure of the outdoor unit is at least 2.5 MPa;
the heat exchanger temperature of the external unit is at least 10 ℃.
10. The air conditioner control method according to claim 1, wherein the heat accumulating portion includes a floor heating hydraulic system, and the outdoor unit is heat-exchangeable with the floor heating hydraulic system;
the air conditioner is for heating the mode, still includes: and controlling the outer machine and the floor heating hydraulic system to be in a first heat exchange state, wherein the first heat exchange state is that the outer machine supplies heat to the floor heating hydraulic system.
11. The air conditioner control method according to claim 10, wherein the air conditioner is in a defrosting mode, and the indoor unit heating is controlled, and the heat storage unit is controlled to release heat; the method comprises the following steps:
when the floor heating temperature value is greater than or equal to a preset temperature value, controlling the external unit to enter a defrosting preparation state;
and when the air conditioner meets a first switching condition, controlling a four-way valve to be in a closed state and controlling the air conditioner to enter a defrosting state.
12. The air conditioner controlling method according to claim 11, wherein the preset temperature value is at least 30 ℃.
13. The air conditioner control method according to claim 11, wherein said controlling the air conditioner to enter a defrost state includes:
and controlling the outer machine and the floor heating hydraulic system to be in a second heat exchange state, wherein the second heat exchange state is that the floor heating hydraulic system supplies heat to the outer machine.
14. The air conditioner control method according to claim 13, wherein said controlling the air conditioner to enter a defrost state further comprises:
when the floor heating temperature value is less than the preset temperature value,
controlling the opening degree of a second expansion valve of the inner machine to be increased and controlling an inner machine fan of the inner machine to stop rotating;
and controlling the outer machine and the floor heating hydraulic system to be in a third heat exchange state, wherein the third heat exchange state is that the floor heating hydraulic system and the outer machine stop exchanging heat.
15. The air conditioner controlling method according to claim 14,
the controlling to increase the opening degree of the second expansion valve of the internal unit includes: controlling the opening degree of the second expansion valve to increase from a defrosting opening degree value to a fixed opening degree value;
the control the internal machine fan of internal machine stops rotating, includes: controlling the internal fan to start to stop rotating from a weak wind mode;
the control outer machine with floor heating hydraulic system is the third heat transfer state, include: and controlling the heat exchange water pump to be in a closed state.
16. The air conditioner control device is characterized in that the air conditioner comprises an outer machine, a heat storage part and at least one inner machine, wherein the outer machine is communicated with the heat storage part and each inner machine through a pipeline; the air conditioner control device includes:
the heating module is used for controlling the heating of the internal machine and controlling the heat storage of the heat storage part;
and the defrosting module is used for controlling the heating of the internal machine and controlling the heat release of the heat storage part.
17. An air conditioner, comprising: a computer-readable storage medium storing a computer program that is read and executed by a packaged IC, and a packaged IC, the air conditioner implementing the air conditioner control method according to any one of claims 1 to 15.
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Effective date of registration: 20220920 Address after: 315100 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Applicant after: NINGBO AUX ELECTRIC Co.,Ltd. Applicant after: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. Address before: 315100 Oakes, No.999, Mingshu Road, Jiangshan Town, Yinzhou District, Ningbo City, Zhejiang Province Applicant before: NINGBO AUX ELECTRIC Co.,Ltd. Applicant before: Ningbo Oxfam intelligent commercial air conditioning manufacturing Co.,Ltd. |
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