CN115540123A - Air conditioner and air conditioner control method and device - Google Patents
Air conditioner and air conditioner control method and device Download PDFInfo
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- CN115540123A CN115540123A CN202210939296.8A CN202210939296A CN115540123A CN 115540123 A CN115540123 A CN 115540123A CN 202210939296 A CN202210939296 A CN 202210939296A CN 115540123 A CN115540123 A CN 115540123A
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- 238000000034 method Methods 0.000 title claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 209
- 238000010438 heat treatment Methods 0.000 claims description 34
- 238000001514 detection method Methods 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 16
- 230000008569 process Effects 0.000 abstract description 9
- 230000007547 defect Effects 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 9
- 238000011084 recovery Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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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
- F24F6/00—Air-humidification, e.g. cooling by humidification
- F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
- F24F6/08—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using heated wet elements
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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
- F24F11/0008—Control or safety arrangements for air-humidification
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
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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
- F24F6/00—Air-humidification, e.g. cooling by humidification
- F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
- F24F6/08—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using heated wet elements
- F24F6/10—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using heated wet elements heated electrically
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- Physics & Mathematics (AREA)
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- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides an air conditioner, an air conditioner control method and an air conditioner control device, wherein the method comprises the following steps: the method comprises the steps of obtaining current water temperature in a water tank and current gas temperature in an exhaust pipe of an external machine, obtaining a temperature comparison result according to the current water temperature, a preset water temperature threshold value, the current gas temperature and a preset gas temperature threshold value, and generating a control instruction based on the temperature comparison result, wherein the control instruction is used for controlling an electronic expansion valve and/or an electric heater to operate according to a preset strategy. In the working process, high-temperature and high-pressure gas in an exhaust pipe of an external machine can be fully utilized to heat water in a water tank, so that water vapor is generated, a humidifying function is realized, the on-off states of an electronic expansion valve and an electric heater are adjusted in real time according to the temperature value relation between the current water temperature and the current gas temperature, and the phenomenon that the energy consumption is overhigh due to the fact that the electric heater is always started is avoided; therefore, the defects that the energy consumption is large in the humidifying process of the air conditioner and the high-temperature gas is directly discharged to cause heat energy waste in the prior art are overcome.
Description
Technical Field
The invention relates to the technical field of household appliances, in particular to an air conditioner, and an air conditioner control method and device.
Background
With the improvement of living standard of people, the air conditioner has become a necessary household appliance, and the function of the air conditioner is increasingly integrated. The existing air conditioner has a humidifying function, and the existing air conditioner is provided with an electric heater in a water tank, when a humidifying mode is started, the electric heater is started to evaporate water in the water tank, generate water vapor and blow the water vapor into a space needing humidifying, so that the humidifying is realized.
However, the existing humidification function is completely realized by depending on an electric heater arranged in a water tank, and when a humidification mode is started, the electric heater needs to be always in a starting state, so that the energy consumption is high; meanwhile, high-temperature gas generated when the air conditioner is in a heating or fresh air mode enters the exhaust pipe without being treated, and waste of heat energy is also caused.
Disclosure of Invention
The invention provides an air conditioner, and a control method and a control device of the air conditioner, which are used for solving the defects that the energy consumption is large in the humidifying process of the air conditioner and the heat energy is wasted due to the direct discharge of high-temperature gas in the prior art, and achieving the technical effects of reducing the energy consumption and improving the heat energy utilization rate.
The present invention provides an air conditioner, comprising:
the water tank is internally provided with an electric heater, the water tank is provided with an air outlet, an air inlet and an air return port, and the water tank releases water vapor through the air outlet;
one end of the auxiliary heating pipeline is communicated with an outer machine exhaust pipe of the air conditioner, the other end of the auxiliary heating pipeline is communicated with an air inlet of the water tank, and an electronic expansion valve is arranged on the auxiliary heating pipeline;
the temperature detection device is used for detecting the current water temperature in the water tank and the current gas temperature in the exhaust pipe of the external machine;
a processor for receiving the current water temperature and the current gas temperature and generating a control instruction based on a temperature comparison result, wherein the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate according to a preset strategy;
wherein the temperature comparison result includes at least one of a first comparison result of the current water temperature with a preset water temperature threshold, a second comparison result of the current gas temperature with a preset gas temperature threshold, and a third comparison result of the current water temperature with the current gas temperature.
According to an air conditioner provided by the present invention, the air conditioner further includes:
and one end of the air return pipe is communicated with an air return port of the water tank, and the other end of the air return pipe is communicated with a refrigerant pipe of an inner machine evaporator of the air conditioner.
According to the air conditioner provided by the invention, the valve opening of the electronic expansion valve is adjustable, and the processor adjusts the valve opening of the electronic expansion valve according to the temperature comparison result.
The invention also provides an air conditioner control method, which comprises the following steps:
acquiring the current water temperature in a water tank and the current gas temperature in an exhaust pipe of an external machine;
obtaining a temperature comparison result according to the current water temperature, a preset water temperature threshold value, the current gas temperature and a preset gas temperature threshold value;
generating a control instruction based on the temperature comparison result, wherein the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate in a preset strategy;
wherein the temperature comparison result includes at least one of a first comparison result of the current water temperature with a preset water temperature threshold, a second comparison result of the current gas temperature with a preset gas temperature threshold, and a third comparison result of the current water temperature with the current gas temperature.
According to the air conditioner control method provided by the invention, the current water temperature in the water tank and the current gas temperature in the exhaust pipe of the outdoor unit are obtained, and the method also comprises the following steps:
responding to a humidifying mode starting instruction, and acquiring a current operation mode of the air conditioner;
under the condition that the current operation mode is a preset mode, acquiring the current water temperature in the water tank and the current gas temperature in the exhaust pipe of the outer machine in real time;
the preset mode comprises a heating mode and/or a fresh air mode.
According to the air conditioner control method provided by the invention, the temperature comparison result comprises a second comparison result of the current air temperature and a preset air temperature threshold value, and the control instruction comprises a first control instruction;
generating a control instruction based on the temperature comparison result, wherein the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate according to a preset strategy, and specifically comprises the following steps:
and if the second comparison result is that the current gas temperature is lower than the gas temperature threshold value, generating a first control instruction, wherein the first control instruction is used for controlling the electronic expansion valve and the electric heater to be opened and controlling the electronic expansion valve to be at a preset opening degree.
According to the air conditioner control method provided by the invention, the temperature comparison result comprises a third comparison result of the current water temperature and the current air temperature, and the control instruction comprises a second control instruction;
generating the first control instruction, and then:
and if the third comparison result is that the current water temperature is higher than the current gas temperature, generating a second control instruction, wherein the second control instruction is used for controlling the electronic expansion valve to be closed.
According to the air conditioner control method provided by the invention, the temperature comparison result comprises a second comparison result of the current air temperature and a preset air temperature threshold value, and the control instruction comprises a third control instruction;
generating a control instruction based on the temperature comparison result, wherein the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate according to a preset strategy, and specifically comprises the following steps:
and under the condition that the gas temperature threshold comprises a first threshold and a second threshold, if the second comparison result is that the current gas temperature is lower than the first threshold and higher than the second threshold, generating a third control instruction, wherein the third control instruction is used for controlling the electronic expansion valve to be opened and controlling the electronic expansion valve to be at a preset opening degree.
According to the air conditioner control method provided by the invention, the temperature comparison result comprises a first comparison result of the current water temperature and a preset water temperature threshold, and the control instruction comprises a fourth control instruction;
generating a third control instruction, and then:
and if the first comparison result is that the current water temperature reaches the preset water temperature threshold value, generating a fourth control instruction, wherein the fourth control instruction is used for controlling the electronic expansion valve to close at a preset speed.
The present invention also provides an air conditioner control apparatus, the apparatus comprising:
the temperature acquisition unit is used for acquiring the current water temperature in the water tank and the current gas temperature in the exhaust pipe of the outer machine;
the temperature comparison unit is used for obtaining a temperature comparison result according to the current water temperature, a preset water temperature threshold value, the current gas temperature and a preset gas temperature threshold value;
the instruction generating unit is used for generating a control instruction based on the temperature comparison result, and the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate in a preset strategy;
wherein the temperature comparison result includes at least one of a first comparison result of the current water temperature with a preset water temperature threshold, a second comparison result of the current gas temperature with a preset gas temperature threshold, and a third comparison result of the current water temperature with the current gas temperature.
According to the air conditioner and the control method and device of the air conditioner, an auxiliary heating pipeline is led out of an outer machine exhaust pipe of the air conditioner, one end of the auxiliary heating pipeline is communicated with the outer machine exhaust pipe of the air conditioner, the other end of the auxiliary heating pipeline is communicated with an air inlet of a water tank, and an electronic expansion valve is arranged on the auxiliary heating pipeline; and obtaining a temperature comparison result by acquiring the current water temperature in the water tank and the current gas temperature in the exhaust pipe of the outdoor unit, and generating a control instruction based on the temperature comparison result, wherein the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate according to a preset strategy. In the working process, high-temperature and high-pressure gas in an exhaust pipe of an external machine can be fully utilized to heat water in a water tank, so that water vapor is generated, the humidification function is realized, the on-off states of the electronic expansion valve and the electric heater are adjusted in real time according to the temperature value relation between the current water temperature and the current gas temperature, and the overhigh energy consumption caused by the fact that the electric heater is always turned on is avoided; therefore, the defects that the energy consumption is large in the humidifying process of the air conditioner and high-temperature gas is directly discharged to cause heat energy waste in the prior art are overcome, the technical effects of reducing the energy consumption and improving the heat energy utilization rate are achieved.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural view of an air conditioner provided in the present invention;
FIG. 2 is a flow chart of an air conditioner control method according to the present invention;
FIG. 3 is a second flowchart of the air conditioner control method according to the present invention;
FIG. 4 is a third flowchart illustrating a method for controlling an air conditioner according to the present invention;
fig. 5 is a schematic structural diagram of an air conditioner control device provided by the present invention.
Reference numerals:
1-a water tank, 2-an electronic expansion valve, 3-an indoor side heat exchanger and 4-an outdoor side heat exchanger;
5-connecting pipe, 6-stop valve, 7-compressor, 8-reversing valve and 9-filter;
10-one-way valve, 11-auxiliary heating pipeline, 12-muffler;
501-temperature acquisition unit, 502-temperature comparison unit, 503-instruction generation unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
An air conditioner, an air conditioner control method and apparatus of the present invention will be described with reference to fig. 1 to 4.
In one embodiment, as shown in fig. 1, the air conditioner provided by the present invention includes a water tank 1, an auxiliary heating line 11, a temperature detecting device, and a processor. Wherein, the water tank 1 is provided with an electric heater which can heat the water in the water tank 1 when being started to form water vapor; the water tank 1 is provided with an air outlet, an air inlet and an air return port, and the water tank 1 releases water vapor through the air outlet. Obviously, the water tank 1 should be provided with a water filling port, and the water filling port is in a normally closed state and is opened when water needs to be added.
High-temperature and high-pressure gas in the exhaust pipe of the outdoor unit is transmitted into the water tank 1 through the auxiliary heating pipeline 11 to heat water in the water tank 1, one end of the auxiliary heating pipeline 11 is communicated with the exhaust pipe of the outdoor unit of the air conditioner, the other end of the auxiliary heating pipeline is communicated with the air inlet of the water tank 1, and the auxiliary heating pipeline 11 is provided with an electronic expansion valve 2.
The temperature detection device is used for detecting the current water temperature in the water tank 1 and the current gas temperature in the exhaust pipe of the external unit, the processor is used for receiving the current water temperature and the current gas temperature and generating a control instruction based on a temperature comparison result, and the control instruction is used for controlling the electronic expansion valve 2 and/or the electric heater to operate according to a preset strategy; wherein the temperature comparison result includes at least one of a first comparison result of the current water temperature with a preset water temperature threshold, a second comparison result of the current gas temperature with a preset gas temperature threshold, and a third comparison result of the current water temperature with the current gas temperature.
In an actual use state, different control instructions can be generated according to different temperature comparison results, so that the heating strategy of the water tank can be adjusted according to the current water temperature condition and the gas temperature condition, the rapid temperature rise of the water tank is ensured, and the energy consumption is reduced as much as possible.
In the use, high temperature gas accomplishes the heat exchange back in water tank 1, and the gas after the cooling can converge into outer machine together with the refrigerant of indoor evaporator refrigerated to realize the gas recovery after the heat recovery, avoid being detained in the water tank, increase water tank atmospheric pressure. Specifically, with continuing reference to fig. 1, the air conditioner further includes an air return pipe 12, wherein one end of the air return pipe 12 is communicated with an air return opening of the water tank 1, and the other end of the air return pipe 12 is communicated with a refrigerant pipe of an internal evaporator of the air conditioner.
In some embodiments, the electronic expansion valve has an adjustable valve opening, and the processor adjusts the valve opening of the electronic expansion valve according to the temperature comparison result. Like this, can increase or reduce the flow that gets into the high-temperature gas of water tank according to temperature regulation needs, improve effect and the efficiency of heating to the water tank. For example, if the current water temperature is low, the valve opening degree can be adjusted to be large so as to rapidly increase the water temperature, and if the current water temperature is high, the valve opening degree can be appropriately adjusted to be small.
It should be understood that, besides the above-mentioned structure, the air conditioner also includes other structures capable of realizing the conventional functions, for example, the structures including the indoor unit, the outdoor unit, the indoor heat exchanger 3, the outdoor heat exchanger 4, the compressor 7, the connecting pipe 5, the stop valve 6, the filter 9, the check valve 10 and the reversing valve 8 shown in fig. 1, and the functions and the connecting structures of these structures are the same as the prior art, and are not described herein again.
In addition to the above air conditioner, the present invention also provides an air conditioner control method, as shown in fig. 2, the method including the steps of:
s201: and acquiring the current water temperature in the water tank and the current gas temperature in the exhaust pipe of the external machine. In an actual use scene, temperature detection devices can be respectively installed in the water tank or at the exhaust pipe of the outer machine, the temperature detection devices are used for obtaining the current temperature of water in the water tank, namely the current water temperature, and the temperature detection devices are used for obtaining the current temperature of high-temperature gas in the exhaust pipe of the outer machine, namely the current gas temperature.
S202: and obtaining a temperature comparison result according to the current water temperature, a preset water temperature threshold value, the current gas temperature and a preset gas temperature threshold value. Specifically, the temperature comparison result may be at least one of a first comparison result of the current water temperature and a preset water temperature threshold, a second comparison result of the current gas temperature and a preset gas temperature threshold, and a third comparison result of the current water temperature and the current gas temperature. For example, the temperature comparison result may be the first comparison result, or may be the first comparison result and the second comparison result, and so on, which are not exhaustive.
S203: and generating a control instruction based on the temperature comparison result, wherein the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate in a preset strategy. For example, the control instruction may be generated based on the first comparison result, or may be generated based on the first comparison result and the second comparison result. The preset strategy comprises the opening or closing of the electronic expansion valve, the opening or closing of the electric heater, or the opening degree adjustment of the electronic expansion valve and the like.
In an actual usage scenario, usually, the air conditioner generates a large amount of high-temperature gas in a heating mode or a fresh air mode, and therefore, in order to reduce the algorithm difficulty, as shown in fig. 3, the method obtains the current water temperature in the water tank and the current gas temperature in the exhaust pipe of the external unit, and before the method, the method further includes the following steps:
s301: responding to a humidifying mode starting instruction, and acquiring a current operation mode of the air conditioner;
s302: under the condition that the current operation mode is a preset mode, acquiring the current water temperature in the water tank and the current gas temperature in the exhaust pipe of the outer machine in real time;
the preset mode comprises a heating mode and/or a fresh air mode.
That is to say, after the humidification mode is started, the current operation mode of the air conditioner is firstly judged, and if the current operation mode is the heating mode or the fresh air mode, the subsequent temperature comparison and control instruction generation algorithm is triggered, so that the heating effect of the water tank is ensured, and the humidification effect of the air conditioner is further ensured.
In some embodiments, according to the air conditioner control method provided by the present invention, the temperature comparison result includes a second comparison result of the current air temperature and a preset air temperature threshold, and the control instruction includes a first control instruction;
at this time, a control instruction is generated based on the temperature comparison result, and the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate according to a preset strategy, and specifically includes:
and if the second comparison result is that the current gas temperature is lower than the gas temperature threshold value, generating a first control instruction, wherein the first control instruction is used for controlling the electronic expansion valve and the electric heater to be opened and controlling the electronic expansion valve to be at a preset opening degree.
That is, when the detected current gas temperature is lower than the preset gas temperature threshold, the temperature of the input high-temperature gas is lower, and the gas temperature threshold may be 100 ℃. The high-temperature gas with a lower temperature may not meet the heating requirement of the water tank, and in order to ensure the heating effect and heating efficiency of the water tank, the electric heater needs to be turned on for auxiliary heating while the electronic expansion valve is turned on, and the preset opening of the electronic expansion valve at this time is preferably the maximum opening of the electronic expansion valve, for example, the valve opening of the electronic expansion valve is 480 steps.
In the above embodiment, the current water temperature in the water tank gradually increases as the water tank is warmed, and when the water temperature increases to a certain height, the water temperature is higher than the gas temperature.
Accordingly, according to the air conditioner control method provided by the present invention, the temperature comparison result includes a third comparison result of the current water temperature and the current air temperature, and the control instruction includes a second control instruction;
after the first control instruction is generated, the method further comprises the following steps:
and if the third comparison result is that the current water temperature is higher than the current gas temperature, generating a second control instruction, wherein the second control instruction is used for controlling the electronic expansion valve to be closed.
That is, after the electronic expansion valve and the electric heater are turned on in response to the first control command, in order to avoid an ineffective operation of the electronic expansion valve due to the water temperature being higher than the gas temperature, the current water temperature and the current gas temperature may be detected in real time, and the electronic expansion valve may be closed in time when the current water temperature is higher than the current gas temperature.
In some embodiments, according to the air conditioner control method provided by the present invention, the temperature comparison result includes a second comparison result of the current air temperature and a preset air temperature threshold, and the control command includes a third control command;
at this time, a control instruction is generated based on a temperature comparison result, and the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate according to a preset strategy, and specifically includes:
and under the condition that the gas temperature threshold comprises a first threshold and a second threshold, if the second comparison result is that the current gas temperature is lower than the first threshold and higher than the second threshold, generating a third control instruction, wherein the third control instruction is used for controlling the electronic expansion valve to be opened and controlling the electronic expansion valve to be at a preset opening degree.
That is to say, when the current gas temperature is within the temperature interval of the first threshold value and the second threshold value, it indicates that the gas temperature is high at this time, and the heating requirement of the water tank can be met. The first threshold and the second threshold can be set according to the use requirement, and the first threshold is not lower than 100 ℃ and the second threshold can be about 110 ℃ because the water needs to be heated to the evaporation temperature of the water.
Further, when the current gas temperature is higher than the second threshold value, the gas temperature can meet the heating requirement more, obviously, only the electronic expansion valve needs to be controlled to be opened at this time, and the electronic expansion valve operates under the preset opening degree. The preset opening degree of the electronic expansion valve may be a maximum opening degree or slightly smaller than the preset opening degree, for example, the valve opening degree may be 480 steps or 450 steps.
In the above embodiment, when the detected current water temperature reaches the water temperature threshold (e.g. 110 ℃), it indicates that the heating is temporarily completed, and the electronic expansion valve may be controlled to close in order to reduce energy consumption. When the current water temperature reaches the constant temperature threshold value, for example, when the current water temperature is 105 ℃, the valve opening degree of the electronic expansion valve can be kept unchanged.
Specifically, according to the air conditioner control method provided by the present invention, the temperature comparison result includes a first comparison result between the current water temperature and a preset water temperature threshold, and the control instruction includes a fourth control instruction;
generating a third control instruction, and then:
and if the first comparison result is that the current water temperature reaches the preset water temperature threshold value, generating a fourth control instruction, wherein the fourth control instruction is used for controlling the electronic expansion valve to close at a preset speed. For example, the preset speed may be 20 steps/minute, and a slow closing of the electronic expansion valve has been achieved.
Further, the valve opening of the electronic expansion valve is adjustable, and the valve opening of the electronic expansion valve can be adjusted according to the temperature comparison result. Like this, can increase or reduce the flow that gets into the high-temperature gas of water tank according to temperature regulation needs, improve effect and the efficiency of heating to the water tank. For example, if the current water temperature is low (e.g., below 80 ℃), the valve opening may be increased (e.g., 480 steps) to rapidly increase the water temperature, and if the current water temperature is high (e.g., above 80 ℃), the valve opening may be decreased (e.g., 450 steps) as appropriate.
In one embodiment, as shown in fig. 4, when the humidification mode is turned on, the current water temperature of the water tank is detected and recorded as m, and the current gas temperature is detected and recorded as n;
when n is less than 100 ℃, opening the electronic expansion valve, wherein the opening degree of the valve is 480 steps, simultaneously opening an electric heater in the water tank, and when the temperature of the water tank rises to m and more than n, closing the electronic expansion valve and only heating by the electric heater;
when the temperature is 100 ℃ and less than n and less than 110 ℃, opening the electronic expansion valve, wherein the opening degree of the valve is 480 steps, and the electric heater is not started;
when the temperature is 110 ℃ and less than n ℃, the electronic expansion valve is opened, the opening degree of the valve is 480 steps, the electric heater is not opened, when m reaches 110 ℃, the electronic expansion valve is slowly closed at 20 steps/min, and when m is maintained at 105 ℃, the opening degree of the valve is maintained.
In the foregoing specific embodiment, the air conditioner control method provided by the present invention obtains a temperature comparison result by obtaining a current water temperature in a water tank and a current gas temperature in an exhaust pipe of an external unit, and generates a control instruction based on the temperature comparison result, where the control instruction is used to control the electronic expansion valve and/or the electric heater to operate according to a preset strategy, according to the current water temperature, a preset water temperature threshold, the current gas temperature, and a preset gas temperature threshold. In the working process, high-temperature and high-pressure gas in an exhaust pipe of an external machine can be fully utilized to heat water in a water tank, so that water vapor is generated, the humidification function is realized, the on-off states of the electronic expansion valve and the electric heater are adjusted in real time according to the temperature value relation between the current water temperature and the current gas temperature, and the overhigh energy consumption caused by the fact that the electric heater is always turned on is avoided; therefore, the defects that the energy consumption is large in the humidifying process of the air conditioner and high-temperature gas is directly discharged to cause heat energy waste in the prior art are overcome, the technical effects of reducing the energy consumption and improving the heat energy utilization rate are achieved.
The following describes an air conditioner control apparatus provided by the present invention, and the air conditioner control apparatus described below and the air conditioner control method described above may be referred to in correspondence with each other.
The present invention also provides an air conditioner control device, as shown in fig. 5, the device comprising:
a temperature obtaining unit 501, configured to obtain a current water temperature in the water tank and a current gas temperature in the exhaust pipe of the external unit;
a temperature comparing unit 502, configured to obtain a temperature comparison result according to the current water temperature, a preset water temperature threshold, the current gas temperature, and a preset gas temperature threshold;
an instruction generating unit 503, configured to generate a control instruction based on the temperature comparison result, where the control instruction is used to control the electronic expansion valve and/or the electric heater to operate according to a preset strategy;
wherein the temperature comparison result includes at least one of a first comparison result of the current water temperature with a preset water temperature threshold, a second comparison result of the current gas temperature with a preset gas temperature threshold, and a third comparison result of the current water temperature with the current gas temperature.
According to the air conditioner control device provided by the invention, the current water temperature in the water tank and the current gas temperature in the exhaust pipe of the external unit are obtained, and the air conditioner control device also comprises the following components:
responding to a humidifying mode starting instruction, and acquiring a current operation mode of the air conditioner;
under the condition that the current operation mode is a preset mode, acquiring the current water temperature in the water tank and the current gas temperature in the exhaust pipe of the outer machine in real time;
the preset mode comprises a heating mode and/or a fresh air mode.
According to the air conditioner control device provided by the invention, the temperature comparison result comprises a second comparison result of the current air temperature and a preset air temperature threshold value, and the control instruction comprises a first control instruction;
generating a control instruction based on the temperature comparison result, wherein the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate according to a preset strategy, and specifically comprises the following steps:
and if the second comparison result is that the current gas temperature is lower than the gas temperature threshold, generating a first control instruction, wherein the first control instruction is used for controlling the electronic expansion valve and the electric heater to be opened and controlling the electronic expansion valve to be in a preset opening degree.
According to the air conditioner control device provided by the invention, the temperature comparison result comprises a third comparison result of the current water temperature and the current air temperature, and the control instruction comprises a second control instruction;
generating the first control instruction, and then:
and if the third comparison result is that the current water temperature is higher than the current gas temperature, generating a second control instruction, wherein the second control instruction is used for controlling the electronic expansion valve to be closed.
According to the air conditioner control device provided by the invention, the temperature comparison result comprises a second comparison result of the current air temperature and a preset air temperature threshold value, and the control instruction comprises a third control instruction;
generating a control instruction based on the temperature comparison result, wherein the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate according to a preset strategy, and specifically comprises the following steps:
and under the condition that the gas temperature threshold comprises a first threshold and a second threshold, if the second comparison result is that the current gas temperature is lower than the first threshold and higher than the second threshold, generating a third control instruction, wherein the third control instruction is used for controlling the electronic expansion valve to be opened and controlling the electronic expansion valve to be at a preset opening degree.
According to the air conditioner control device provided by the invention, the temperature comparison result comprises a first comparison result of the current water temperature and a preset water temperature threshold value, and the control instruction comprises a fourth control instruction;
generating a third control instruction, and then:
and if the first comparison result is that the current water temperature reaches the preset water temperature threshold, generating a fourth control instruction, wherein the fourth control instruction is used for controlling the electronic expansion valve to close at a preset speed.
In the foregoing specific embodiment, the air conditioner control device provided in the present invention obtains a temperature comparison result by obtaining a current water temperature in the water tank and a current gas temperature in the exhaust pipe of the external unit according to the current water temperature, a preset water temperature threshold, the current gas temperature, and a preset gas temperature threshold, and generates a control instruction based on the temperature comparison result, where the control instruction is used to control the electronic expansion valve and/or the electric heater to operate according to a preset strategy. In the working process, high-temperature and high-pressure gas in an exhaust pipe of an external machine can be fully utilized to heat water in a water tank, so that water vapor is generated, the humidification function is realized, the on-off states of the electronic expansion valve and the electric heater are adjusted in real time according to the temperature value relation between the current water temperature and the current gas temperature, and the overhigh energy consumption caused by the fact that the electric heater is always turned on is avoided; therefore, the defects that the energy consumption is large in the humidifying process of the air conditioner and high-temperature gas is directly discharged to cause heat energy waste in the prior art are overcome, the technical effects of reducing the energy consumption and improving the heat energy utilization rate are achieved.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment may be implemented by software plus a necessary general hardware platform, and may also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An air conditioner, comprising:
the water tank is internally provided with an electric heater, the water tank is provided with an air outlet, an air inlet and an air return port, and the water tank releases water vapor through the air outlet;
the auxiliary heating pipeline is communicated with an outer machine exhaust pipe of the air conditioner at one end and is communicated with an air inlet of the water tank at the other end, and an electronic expansion valve is arranged on the auxiliary heating pipeline;
the temperature detection device is used for detecting the current water temperature in the water tank and the current gas temperature in the exhaust pipe of the external machine;
a processor for receiving the current water temperature and the current gas temperature and generating a control instruction based on a temperature comparison result, the control instruction being for controlling the electronic expansion valve and/or the electric heater to operate in a preset strategy;
wherein the temperature comparison result includes at least one of a first comparison result of the current water temperature with a preset water temperature threshold, a second comparison result of the current gas temperature with a preset gas temperature threshold, and a third comparison result of the current water temperature with the current gas temperature.
2. The air conditioner of claim 1, further comprising:
and one end of the air return pipe is communicated with an air return port of the water tank, and the other end of the air return pipe is communicated with a refrigerant pipe of an indoor unit evaporator of the air conditioner.
3. The air conditioner of claim 1, wherein the electronic expansion valve has an adjustable valve opening, and the processor adjusts the valve opening of the electronic expansion valve based on the temperature comparison.
4. An air conditioner control method applied to the air conditioner according to any one of claims 1 to 3, characterized by comprising:
acquiring the current water temperature in a water tank and the current gas temperature in an exhaust pipe of an external machine;
obtaining a temperature comparison result according to the current water temperature, a preset water temperature threshold value, the current gas temperature and a preset gas temperature threshold value;
generating a control instruction based on the temperature comparison result, wherein the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate in a preset strategy;
wherein the temperature comparison result includes at least one of a first comparison result of the current water temperature with a preset water temperature threshold, a second comparison result of the current gas temperature with a preset gas temperature threshold, and a third comparison result of the current water temperature with the current gas temperature.
5. The air conditioner controlling method according to claim 4, wherein obtaining the current water temperature in the water tank and the current gas temperature in the exhaust duct of the outdoor unit further comprises:
responding to a humidifying mode starting instruction, and acquiring a current operation mode of the air conditioner;
under the condition that the current operation mode is a preset mode, acquiring the current water temperature in the water tank and the current gas temperature in an exhaust pipe of an external machine in real time;
the preset mode comprises a heating mode and/or a fresh air mode.
6. The air conditioner control method according to claim 4, wherein the temperature comparison result includes a second comparison result of the current gas temperature with a preset gas temperature threshold, and the control command includes a first control command;
generating a control instruction based on the temperature comparison result, wherein the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate according to a preset strategy, and specifically comprises the following steps:
and if the second comparison result is that the current gas temperature is lower than the gas temperature threshold value, generating a first control instruction, wherein the first control instruction is used for controlling the electronic expansion valve and the electric heater to be opened and controlling the electronic expansion valve to be at a preset opening degree.
7. The air conditioner control method according to claim 6, wherein the temperature comparison result includes a third comparison result of the current water temperature and the current air temperature, and the control command includes a second control command;
generating the first control instruction, and then:
and if the third comparison result is that the current water temperature is higher than the current gas temperature, generating a second control instruction, wherein the second control instruction is used for controlling the electronic expansion valve to be closed.
8. The air conditioner control method according to claim 4, wherein the temperature comparison result includes a second comparison result of the current gas temperature with a preset gas temperature threshold, and the control command includes a third control command;
generating a control instruction based on the temperature comparison result, wherein the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate according to a preset strategy, and specifically comprises the following steps:
and under the condition that the gas temperature threshold comprises a first threshold and a second threshold, if the second comparison result is that the current gas temperature is lower than the first threshold and higher than the second threshold, generating a third control instruction, wherein the third control instruction is used for controlling the electronic expansion valve to be opened and controlling the electronic expansion valve to be at a preset opening degree.
9. The air conditioner control method according to claim 8, wherein the temperature comparison result includes a first comparison result of the current water temperature with a preset water temperature threshold, and the control command includes a fourth control command;
generating a third control instruction, and then:
and if the first comparison result is that the current water temperature reaches the preset water temperature threshold value, generating a fourth control instruction, wherein the fourth control instruction is used for controlling the electronic expansion valve to close at a preset speed.
10. An air conditioner control device, characterized in that the device comprises:
the temperature acquisition unit is used for acquiring the current water temperature in the water tank and the current gas temperature in the exhaust pipe of the outer machine;
the temperature comparison unit is used for obtaining a temperature comparison result according to the current water temperature, a preset water temperature threshold value, the current gas temperature and a preset gas temperature threshold value;
the instruction generating unit is used for generating a control instruction based on the temperature comparison result, and the control instruction is used for controlling the electronic expansion valve and/or the electric heater to operate in a preset strategy;
wherein the temperature comparison result includes at least one of a first comparison result of the current water temperature with a preset water temperature threshold, a second comparison result of the current gas temperature with a preset gas temperature threshold, and a third comparison result of the current water temperature with the current gas temperature.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210939296.8A CN115540123A (en) | 2022-08-05 | 2022-08-05 | Air conditioner and air conditioner control method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210939296.8A CN115540123A (en) | 2022-08-05 | 2022-08-05 | Air conditioner and air conditioner control method and device |
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| CN115540123A true CN115540123A (en) | 2022-12-30 |
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| CN202210939296.8A Pending CN115540123A (en) | 2022-08-05 | 2022-08-05 | Air conditioner and air conditioner control method and device |
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| CN (1) | CN115540123A (en) |
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- 2022-08-05 CN CN202210939296.8A patent/CN115540123A/en active Pending
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