CN111520890A - Multi-split air conditioner and sterilization control method thereof - Google Patents
Multi-split air conditioner and sterilization control method thereof Download PDFInfo
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- CN111520890A CN111520890A CN202010230561.6A CN202010230561A CN111520890A CN 111520890 A CN111520890 A CN 111520890A CN 202010230561 A CN202010230561 A CN 202010230561A CN 111520890 A CN111520890 A CN 111520890A
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 113
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 110
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 7
- 239000000645 desinfectant Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 21
- 238000004378 air conditioning Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 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
- 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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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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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Abstract
The invention belongs to the technical field of air conditioners and aims to solve the problem that users may feel uncomfortable when chemical products such as disinfectant are used for indoor sterilization. Therefore, the invention provides a sterilization control method of a multi-split air conditioner and the multi-split air conditioner, wherein the multi-split air conditioner comprises a plurality of indoor units, and the sterilization control method comprises the following steps: acquiring a sterilization instruction of a target indoor unit; acquiring a current operation mode of the multi-split air conditioner; and then, according to the sterilization instruction of the target indoor unit and the current operation mode of the multi-split air conditioner, the multi-split air conditioner executes a corresponding sterilization mode so that the target indoor unit sterilizes the indoor space. The multi-split air conditioner is in heating operation, and the target indoor unit discharges hot air to carry out high-temperature disinfection indoors, so that the multi-split air conditioner is healthier and better in user experience compared with chemical products such as disinfectant.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides a sterilization control method of a multi-split air conditioner and the multi-split air conditioner.
Background
The multi-split air conditioner is a type of air conditioner, commonly called as "one drags more", and refers to that one outdoor unit is connected with two or more indoor units through a pipe. The multi-split air conditioner is increasingly widely applied to office buildings, hotels, small and medium-sized buildings and partial public buildings at present.
The indoor sterilization and disinfection can be well prevented frequently, and the indoor sterilization and disinfection is mainly performed through chemical products such as disinfectant at present. However, chemical products such as disinfection solution have peculiar smell and can be dissipated for a long time, which may cause discomfort to users and affect the practical experience of users.
Therefore, there is a need in the art for a sterilization control method of a multi-split air conditioner and a corresponding multi-split air conditioner to solve the above problems.
Disclosure of Invention
In order to solve the above-mentioned problems in the prior art, that is, to solve the problem that users may feel uncomfortable when the existing indoor is sterilized by using chemical products such as disinfectant, the present invention provides a sterilization control method for a multi-split air conditioner, the multi-split air conditioner includes a plurality of indoor units, the sterilization control method includes: acquiring a sterilization instruction of a target indoor unit; acquiring a current operation mode of the multi-split air conditioner; and enabling the multi-split air conditioner to execute a corresponding sterilization mode according to the sterilization instruction of the target indoor unit and the current operation mode of the multi-split air conditioner, so that the target indoor unit sterilizes the indoor space.
In a preferred technical solution of the sterilization control method, the step of causing the multi-split air conditioner to execute a corresponding sterilization mode according to the sterilization instruction of the target indoor unit and the current operation mode of the multi-split air conditioner so that the target indoor unit sterilizes the room specifically includes: if the current operation mode of the multi-split air conditioner is a cooling mode, the multi-split air conditioner is restarted in a heating mode after being stopped to operate for a first preset time; adjusting the electronic expansion valve of the target indoor unit to a first set opening degree, and adjusting the electronic expansion valves of the indoor units except the target indoor unit to a second set opening degree; wherein the first set opening degree is greater than the second set opening degree.
In a preferred embodiment of the sterilization control method, the first set opening degree is a maximum opening degree of the electronic expansion valve, and/or the second set opening degree is a minimum opening degree of the electronic expansion valve.
In a preferred embodiment of the sterilization control method, the sterilization control method further includes: and in the process of sterilizing the indoor space by the target indoor unit, the target indoor unit is enabled to operate at intervals according to a first air outlet speed and a second air outlet speed, wherein the first air outlet speed is greater than the second air outlet speed.
In a preferred technical solution of the sterilization control method, the first air outlet speed is a highest air outlet speed of the target indoor unit, and/or the second air outlet speed is a lowest air outlet speed of the target indoor unit.
In a preferred technical solution of the sterilization control method, the step of causing the target indoor unit to operate at intervals of the first air outlet speed and the second air outlet speed specifically includes: when the target indoor unit starts to sterilize indoors, the target indoor unit is firstly operated for a second preset time according to the first air outlet speed; and enabling the target indoor unit to operate for a third preset time according to the second air outlet speed.
In a preferred technical solution of the sterilization control method, the step of causing the target indoor unit to operate at intervals of the first air outlet speed and the second air outlet speed specifically includes: acquiring indoor temperature; when the indoor temperature is lower than a first preset temperature, the target indoor unit is enabled to operate according to a first air outlet speed; when the indoor temperature is higher than a second preset temperature, the target indoor unit is enabled to operate according to a second air outlet speed; wherein the first preset temperature is less than the second preset temperature.
In a preferred embodiment of the sterilization control method, the sterilization control method further includes: and determining the target pressure of the multi-split air conditioner according to the outdoor environment temperature.
In a preferred technical solution of the sterilization control method, the step of causing the multi-split air conditioner to execute a corresponding sterilization mode according to the sterilization instruction of the target indoor unit and the current operation mode of the multi-split air conditioner so that the target indoor unit sterilizes the room further includes: and if the current operation mode of the multi-split air conditioner is a heating mode, adjusting the electronic expansion valve of the target indoor unit to the first set opening degree, and adjusting the electronic expansion valves of the indoor units except the target indoor unit to the second set opening degree.
In another aspect, the present invention also provides a multi-split air conditioner including a controller configured to be able to perform the above sterilization control method.
As can be understood by those skilled in the art, in a preferred technical solution of the present invention, the sterilization instruction of the target indoor unit and the current operation mode of the multi-split air conditioner are obtained; and then, according to the sterilization instruction of the target indoor unit and the current operation mode of the multi-split air conditioner, the multi-split air conditioner executes a corresponding sterilization mode so that the target indoor unit sterilizes the indoor space. The multi-split air conditioner is in heating operation, and the target indoor unit discharges hot air to carry out high-temperature disinfection indoors, so that the multi-split air conditioner is healthier and better in user experience compared with chemical products such as disinfectant.
Further, the sterilization control method of the present invention further includes: and in the process of sterilizing the indoor space by the target indoor unit, the target indoor unit is enabled to operate at intervals according to a first air outlet speed and a second air outlet speed, wherein the first air outlet speed is greater than the second air outlet speed. By such an arrangement, the sterilization effect can be improved. Specifically, when the target indoor unit operates at a first air outlet speed, the air speed is high, the indoor temperature of a room can be increased as soon as possible, then the target indoor unit operates at a second air outlet speed, the air speed is low, the heat exchange between air and a refrigerant is sufficient, more heat can be absorbed, the air outlet temperature of the target indoor unit can be increased, the indoor temperature of the room is high, the air outlet temperature of the target indoor unit can be further increased, and the higher the air outlet temperature of the target indoor unit is, the better the sterilization effect is; when the target indoor unit operates at the second air outlet speed, the temperature of the room is gradually reduced, so that the air outlet temperature of the target indoor unit is reduced, at the moment, the target indoor unit operates at the first air outlet speed to improve the indoor temperature of the room, and the sterilization effect can be greatly improved by repeated and cyclic operation.
Further, the sterilization control method of the present invention further includes: and determining the target pressure of the multi-split air conditioner according to the outdoor environment temperature. With such an arrangement, the sterilization effect can be further improved. Particularly, the higher the target pressure is set, the more beneficial the increase of the running frequency of the compressor is, the higher the outlet air temperature of the target indoor unit is, and therefore the sterilization effect is improved, however, when the outdoor environment temperature is lower, if the target pressure is set to be higher, the normal running of the compressor can be influenced, and therefore the stability of the air conditioning system is influenced, and the sterilization effect is influenced.
In addition, the multi-split air conditioner further provided on the basis of the technical scheme of the invention has the technical effects of the sterilization control method due to the adoption of the sterilization control method, and compared with the multi-split air conditioner before improvement, the multi-split air conditioner can discharge hot air from the indoor unit according to the sterilization instruction to sterilize the indoor unit at high temperature.
Drawings
Fig. 1 is a schematic view of a multi-split air conditioner of the present invention;
FIG. 2 is a flow chart of a sterilization control method of the present invention;
FIG. 3 is a flow chart of an embodiment of a sterilization control method of the present invention;
fig. 4 is a temperature-pressure map.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
The problem pointed out by the background art that users may feel uncomfortable when chemical products such as disinfection solution are used for indoor sterilization. The invention provides a sterilization control method of a multi-split air conditioner and the multi-split air conditioner, and aims to sterilize the indoor space through the multi-split air conditioner.
Specifically, as shown in fig. 1, the multi-split air conditioner of the present invention includes an outdoor unit 1 and a plurality of indoor units 2, the outdoor unit includes a compressor 11, a four-way valve 12, a condenser 13, a gas-liquid separator 14, and the like, in a possible embodiment, the number of the indoor units 2 is three, and the indoor units are a first indoor unit 2A, a second indoor unit 2B, and a third indoor unit 2C, the first indoor unit 2A, the second indoor unit 2B, and the third indoor unit 2C are respectively installed in a room a, a room B, and a room C, the first indoor unit 2A includes a first electronic expansion valve 2A1, the second indoor unit 2B includes a second electronic expansion valve 2B1, and the third indoor unit 2C includes a third electronic expansion valve 2C 1.
As shown in fig. 2, the sterilization control method of the present invention includes: acquiring a sterilization instruction of a target indoor unit; acquiring a current operation mode of the multi-split air conditioner; and enabling the multi-split air conditioner to execute a corresponding sterilization mode according to the sterilization instruction of the target indoor unit and the current operation mode of the multi-split air conditioner, so that the target indoor unit sterilizes the indoor space.
Through the sterilization instruction that obtains the target indoor set to according to the sterilization instruction of target indoor set and the current operating mode of multi-split air conditioner, make the multi-split air conditioner carry out corresponding sterilization mode, thereby make the target indoor set disinfect to indoor, in order to guarantee that user's is healthy, promote user and use experience.
The sterilization control method according to the present invention will be described in detail below with reference to fig. 1 and 3, taking the first indoor unit 2A receiving the sterilization command as an example.
After the sterilization instruction of the first indoor unit 2A is obtained, the current operation mode of the multi-split air conditioner is firstly obtained, and then the multi-split air conditioner is enabled to execute the corresponding sterilization mode according to the sterilization instruction of the first indoor unit 2A and the current operation mode of the multi-split air conditioner, so that the first indoor unit 2A can sterilize the room a; specifically, if the current operation mode of the multi-split air conditioner is the cooling mode, after the multi-split air conditioner is stopped to operate for a first preset time, the multi-split air conditioner is restarted in the heating mode, the electronic expansion valve of the first indoor unit 2A is adjusted to a first set opening degree, that is, the first electronic expansion valve 2A1 is adjusted to the first set opening degree, and the electronic expansion valves of the indoor units (the second indoor unit 2B and the third indoor unit 2C) other than the first indoor unit 2A are adjusted to a second set opening degree, that is, the second electronic expansion valve 2B1 and the third electronic expansion valve 2C1 are adjusted to the second set opening degree; if the current operation mode of the multi-split air conditioner is the heating mode, adjusting the electronic expansion valve of the first indoor unit 2A to a first set opening degree, that is, adjusting the first electronic expansion valve 2A1 to the first set opening degree, and adjusting the electronic expansion valves of the indoor units (the second indoor unit 2B and the third indoor unit 2C) other than the first indoor unit 2A to a second set opening degree, that is, adjusting the electronic expansion valves of the second electronic expansion valve 2B1 and the third electronic expansion valve 2C1 to the second set opening degree; wherein the first set opening degree is larger than the second set opening degree.
Namely, when a sterilization instruction is obtained, if the multi-split air conditioner is modulated to be in cold operation, the multi-split air conditioner is stopped to operate for a period of time, and then the multi-split air conditioner is restarted to operate in a heating mode, so that the stability of an air conditioning system can be ensured, and the sterilization effect is ensured; if the multi-split air conditioner is in heating operation, the first indoor unit 2A is directly sterilized for the room A. In a preferred case, the first preset time is 3 minutes. Namely, when the sterilization instruction is obtained, if the multi-split air conditioner is modulated to be in cold operation, the multi-split air conditioner is stopped to operate, and after 3 minutes, the multi-split air conditioner is restarted to operate in a heating mode.
When the first indoor unit 2A is caused to sterilize the room a, the first electronic expansion valve 2A1 is adjusted to the first set opening degree, and the second electronic expansion valve 2B1 and the third electronic expansion valve 2C1 are adjusted to the second set opening degree, whereby the flow rate of the refrigerant flowing into the first indoor unit 2A can be increased, the outlet air temperature of the first indoor unit 2A can be increased, and the purpose of sterilization can be achieved. The first set opening degree is preferably a maximum opening degree of the electronic expansion valve, the maximum opening degree of the electronic expansion valve is generally 480pls, the second set opening degree is preferably a minimum opening degree of the electronic expansion valve, and the minimum opening degree of the electronic expansion valve is generally 32 pls. That is, when the first indoor unit 2A is caused to sterilize the room a, the first electronic expansion valve 2A1 is adjusted to the maximum opening degree (480pls), and the second electronic expansion valve 2B1 and the third electronic expansion valve 2C1 are adjusted to the minimum opening degree (32 pls). With this arrangement, the outlet air temperature of the first indoor unit 2A can be greatly increased, and the sterilization effect can be improved.
Preferably, the sterilization control method of the present invention further comprises: in the process that the first indoor unit 2A sterilizes the room a, the first indoor unit 2A is caused to operate at intervals according to a first air outlet speed and a second air outlet speed, wherein the first air outlet speed is greater than the second air outlet speed. With such an arrangement, the sterilization effect can be further improved.
Specifically, when the first indoor unit 2A operates at the first air outlet speed, the air speed is high, the indoor temperature of the room a can be increased as soon as possible, then the first indoor unit 2A operates at the second air outlet speed, the air speed is low, heat exchange with the refrigerant is sufficient, more heat can be absorbed, the air outlet temperature of the first indoor unit 2A can be increased, and at the moment, the indoor temperature of the room a is high, the air outlet temperature of the first indoor unit 2A can be further increased, and the higher the air outlet temperature of the first indoor unit 2A is, the better the sterilization effect is; when the first indoor unit 2A operates at the second air outlet speed, the temperature of the room a is gradually reduced, so that the air outlet temperature of the first indoor unit 2A is reduced, and then the first indoor unit 2A operates at the first air outlet speed to increase the indoor temperature of the room a, so that the sterilization effect can be greatly improved by repeated and cyclic operation.
In a preferable case, the step of causing the first indoor unit 2A to operate at the interval between the first air outlet speed and the second air outlet speed specifically includes: when the first indoor unit 2A starts to sterilize the indoor space, the first indoor unit 2A is firstly operated for a second preset time according to the first air outlet speed; and enabling the first indoor unit 2A to operate for a third preset time according to the second air outlet speed. That is, when the first indoor unit 2A starts to sterilize the room a, the first indoor unit 2A is operated at the first air outlet speed to increase the indoor temperature of the room a as soon as possible, after the first indoor unit 2A is operated at the first air outlet speed for a second preset time, the first indoor unit 2A is operated at the second air outlet speed to increase the air outlet temperature of the first indoor unit 2A, and sterilize the room a, and after the first indoor unit 2A is operated at the second air outlet speed for a third preset time, the first indoor unit 2A is operated at the first air outlet speed, and the operation is repeated until the multi-split air conditioner exits the sterilization mode. The values of the second preset time and the third preset time may be the same or different, and those skilled in the art may set the specific values of the second preset time and the third preset time according to experiments or experiences in practical applications.
In another preferred case, the step of operating the first indoor unit 2A at the first air outlet speed and the second air outlet speed at intervals specifically includes: acquiring indoor temperature, and when the indoor temperature is lower than a first preset temperature, enabling the first indoor unit 2A to operate at a first air outlet speed; when the indoor temperature is higher than the second preset temperature, the first indoor unit 2A operates at a second air outlet speed; wherein the first preset temperature is lower than the second preset temperature. That is, in the process that the first indoor unit 2A sterilizes the room a, the indoor temperature of the room a is acquired by the temperature sensor, and when the indoor temperature is lower than the first preset temperature, it is indicated that the indoor temperature of the room a is relatively low, the outlet air temperature of the first indoor unit 2A is also relatively low, and the sterilization effect is poor, and in order to improve the sterilization effect, the first indoor unit 2A should be operated at the first outlet air speed to improve the indoor temperature of the room a; when the indoor temperature is higher than the second preset temperature, the indoor temperature of the room a is higher, and at this time, the first indoor unit 2A is operated at the second air outlet speed, so that the air outlet temperature of the first indoor unit 2A can be greatly increased, and the sterilization effect is improved. The specific values of the first preset temperature and the second preset temperature can be set by a person skilled in the art according to experiments or experience in practical application.
Preferably, the first outlet air speed is the highest outlet air speed of the first indoor unit 2A (the highest outlet air speed is generally 3.8 m/s), and the second outlet air speed is the lowest outlet air speed of the first indoor unit 2A (the lowest outlet air speed is generally 2 m/s).
Preferably, the sterilization control method of the present invention further comprises: and determining the target pressure Pd of the multi-split air conditioner according to the outdoor environment temperature Tao. When the first indoor unit 2A sterilizes the room a, the outdoor ambient temperature Tao may be obtained through the temperature sensor, the value of the outdoor ambient temperature Tao is transmitted to the controller of the multi-split air conditioner, and then the target pressure Pd of the multi-split air conditioner is determined according to a chart or a formula pre-stored in the controller.
In one possible embodiment, as shown in fig. 4, after the outdoor ambient temperature Tao is obtained, the target pressure Pd of the multi-split air conditioner may be determined according to a temperature-pressure map. According to the temperature-pressure comparison diagram, the following conditions are obtained:
when Tao is less than or equal to-5 ℃, Pd is 3.5 Mpa;
when Tao is more than-5 ℃ and less than 7 ℃, Pd is 0.017 multiplied by Tao + 3.58;
when Tao is more than or equal to 7 ℃ and less than 15 ℃, Pd is 3.7 Mpa;
when Tao is not less than 15 deg.C, Pd is 3.9 Mpa.
With such an arrangement, the sterilization effect can be further improved. Specifically, the higher the target pressure Pd is set, the more beneficial the increase of the operating frequency of the compressor 11 is, and the higher the air outlet temperature of the first indoor unit 2A is, so as to improve the sterilization effect, however, when the outdoor environment temperature Tao is lower, if the target pressure Pd is set higher, the normal operation of the compressor 11 is affected, so as to affect the stability of the air conditioning system, and further affect the sterilization effect, whereas when the outdoor environment temperature Tao is higher, if the target pressure Pd is set lower, the air outlet temperature of the first indoor unit 2A cannot reach the higher air outlet temperature, so as to affect the sterilization effect, and therefore, the target pressure Pd of the multi-split air conditioner is determined according to the outdoor environment temperature Tao, so as to further improve the sterilization effect.
It should be noted that the sterilization instruction may be input by a user, or it may be determined whether sterilization is required by collecting indoor environmental information; when to exit the sterilization mode, a user can input an instruction, or the sterilization mode can be automatically exited after the sterilization time reaches the set time by setting the sterilization time.
Finally, it should be noted that, in order to ensure the sterilization effect, only one indoor unit 2 is allowed to perform the sterilization operation in the same time period, and when a plurality of sterilization instructions are obtained, the sterilization operations are performed according to the obtained sequence.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (10)
1. A sterilization control method of a multi-split air conditioner, wherein the multi-split air conditioner comprises a plurality of indoor units, and the sterilization control method comprises the following steps:
acquiring a sterilization instruction of a target indoor unit;
acquiring a current operation mode of the multi-split air conditioner;
and enabling the multi-split air conditioner to execute a corresponding sterilization mode according to the sterilization instruction of the target indoor unit and the current operation mode of the multi-split air conditioner, so that the target indoor unit sterilizes the indoor space.
2. The sterilization control method according to claim 1, wherein the step of causing the multi-split air conditioner to execute a corresponding sterilization mode according to the sterilization instruction of the target indoor unit and the current operation mode of the multi-split air conditioner so that the target indoor unit sterilizes the room specifically comprises:
if the current operation mode of the multi-split air conditioner is a cooling mode, the multi-split air conditioner is restarted in a heating mode after being stopped to operate for a first preset time;
adjusting the electronic expansion valve of the target indoor unit to a first set opening degree, and adjusting the electronic expansion valves of the indoor units except the target indoor unit to a second set opening degree;
wherein the first set opening degree is greater than the second set opening degree.
3. The sterilization control method according to claim 2, wherein the first set opening degree is a maximum opening degree of the electronic expansion valve, and/or wherein the first set opening degree is a maximum opening degree of the electronic expansion valve
The second set opening degree is a minimum opening degree of the electronic expansion valve.
4. The sterilization control method according to claim 2, further comprising:
and in the process of sterilizing the indoor space by the target indoor unit, the target indoor unit is enabled to operate at intervals according to a first air outlet speed and a second air outlet speed, wherein the first air outlet speed is greater than the second air outlet speed.
5. The sterilization control method according to claim 4, wherein the first outlet air speed is a maximum outlet air speed of the target indoor unit, and/or wherein the first outlet air speed is a maximum outlet air speed of the target indoor unit
And the second air outlet speed is the lowest air outlet speed of the target indoor unit.
6. The sterilization control method according to claim 4, wherein the step of operating the target indoor unit at the first outlet air speed and the second outlet air speed at intervals specifically comprises:
when the target indoor unit starts to sterilize indoors, the target indoor unit is firstly operated for a second preset time according to the first air outlet speed;
and enabling the target indoor unit to operate for a third preset time according to the second air outlet speed.
7. The sterilization control method according to claim 4, wherein the step of operating the target indoor unit at the first outlet air speed and the second outlet air speed at intervals specifically comprises:
acquiring indoor temperature;
when the indoor temperature is lower than a first preset temperature, the target indoor unit is enabled to operate according to a first air outlet speed;
when the indoor temperature is higher than a second preset temperature, the target indoor unit is enabled to operate according to a second air outlet speed;
wherein the first preset temperature is less than the second preset temperature.
8. The sterilization control method according to claim 2, further comprising:
and determining the target pressure of the multi-split air conditioner according to the outdoor environment temperature.
9. The sterilization control method as claimed in any one of claims 2 to 8, wherein the step of causing the multi-split air conditioner to perform a corresponding sterilization mode according to the sterilization instruction of the target indoor unit and a current operation mode of the multi-split air conditioner so that the target indoor unit sterilizes the room further comprises:
and if the current operation mode of the multi-split air conditioner is a heating mode, adjusting the electronic expansion valve of the target indoor unit to the first set opening degree, and adjusting the electronic expansion valves of the indoor units except the target indoor unit to the second set opening degree.
10. A multi-split air conditioner including a controller, characterized in that the controller is configured to be able to perform the sterilization control method of any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010230561.6A CN111520890A (en) | 2020-03-27 | 2020-03-27 | Multi-split air conditioner and sterilization control method thereof |
| PCT/CN2021/075910 WO2021190189A1 (en) | 2020-03-27 | 2021-02-08 | Sterilization control method for multi-split air conditioner and multi-split air conditioner |
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Cited By (5)
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| CN112032976A (en) * | 2020-08-25 | 2020-12-04 | 海信（山东）空调有限公司 | Air conditioner and control method thereof |
| WO2021190189A1 (en) * | 2020-03-27 | 2021-09-30 | 青岛海尔空调电子有限公司 | Sterilization control method for multi-split air conditioner and multi-split air conditioner |
| CN113575428A (en) * | 2021-06-21 | 2021-11-02 | 重庆海尔空调器有限公司 | Control method for air purification system of breeding house |
| CN115717768A (en) * | 2022-11-25 | 2023-02-28 | 宁波奥克斯电气股份有限公司 | Multi-split control method, device and controller |
| CN115717768B (en) * | 2022-11-25 | 2024-06-11 | 宁波奥克斯电气股份有限公司 | Multi-split control method, device and controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113983640A (en) * | 2021-11-09 | 2022-01-28 | 海信（广东）空调有限公司 | Control method of air conditioner and air conditioner with same |
| CN114198861B (en) * | 2021-11-16 | 2024-02-23 | 青岛海尔空调电子有限公司 | Air conditioner control method and air conditioner |
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| WO2021190189A1 (en) | 2021-09-30 |
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