CN109682018B - Control method and control device of heating system and air conditioner - Google Patents
Control method and control device of heating system and air conditioner Download PDFInfo
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- CN109682018B CN109682018B CN201811613278.0A CN201811613278A CN109682018B CN 109682018 B CN109682018 B CN 109682018B CN 201811613278 A CN201811613278 A CN 201811613278A CN 109682018 B CN109682018 B CN 109682018B
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- heating device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—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
- F24F11/62—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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method of a heating system, a control device of the heating system and an air conditioner. The control method comprises the following steps: detecting the ambient temperature; judging whether the air conditioner is in a standby state or not when the ambient temperature is less than or equal to a first preset temperature threshold value; and when the air conditioner is not in a standby state, controlling the opening and closing of a chassis heating device of the air conditioner according to the relation between the ambient temperature and a second preset temperature threshold, wherein the second preset temperature threshold is smaller than the first preset temperature threshold. According to the control method of the heating system, when the air conditioner system is not in a standby state, the opening and closing of the chassis heating device of the air conditioner can be controlled according to the relation between the ambient temperature and the second preset temperature threshold value, so that the heating device can be quickly opened to avoid the icing of the unit chassis of the air conditioner when the unit chassis of the air conditioner is iced, the drainage of the unit chassis is smooth during defrosting, electricity can be saved, and the using effect and the operation reliability of the whole air conditioner are improved.
Description
Technical Field
The present invention relates to the technical field of air conditioning systems, and more particularly, to a control method of a heating system, a control device of the heating system, and an air conditioner.
Background
In the related art, an air conditioning system in a severe cold climate area generally has a heating function, when the heating function is operated, when the outdoor environment temperature is low, a unit chassis of an air conditioner is easy to freeze, and the freezing of the unit chassis easily causes the pipeline of the air conditioner to be cracked, or blocks ice water after the unit chassis is defrosted, so that the drainage of the unit chassis is not smooth during defrosting.
Disclosure of Invention
The embodiment of the invention provides a control method and a control device of a heating system and an air conditioner.
The control method of the heating system of the embodiment of the invention is used for the air conditioner, and comprises the following steps:
detecting the ambient temperature;
judging whether the air conditioner is in a standby state or not when the ambient temperature is less than or equal to a first preset temperature threshold;
and when the air conditioner is not in the standby state, controlling the opening and closing of a chassis heating device of the air conditioner according to the relation between the ambient temperature and a second preset temperature threshold, wherein the second preset temperature threshold is smaller than the first preset temperature threshold.
In the control method of the heating system in the above embodiment, when the air conditioner system is not in the standby state, the on and off of the chassis heating device of the air conditioner can be controlled according to the relationship between the ambient temperature and the second preset temperature threshold, so that the heating device can be quickly turned on when the unit chassis of the air conditioner is frozen to avoid the unit chassis of the air conditioner from being frozen, the drainage of the unit chassis is smooth during defrosting, electricity can be saved, and the use effect and the operation reliability of the whole air conditioner are improved.
In certain embodiments, the control method comprises: and determining the icing levels of the air conditioner according to the preset temperature range of the environment temperature, wherein one preset temperature range corresponds to one icing level, and the larger the icing level is, the longer the on-time and the shorter the off-time of the chassis heating device are.
In some embodiments, controlling the on and off of the chassis heating device of the air conditioner according to the relationship between the ambient temperature and the second preset temperature threshold comprises:
when the environment temperature is higher than the second preset temperature threshold value, controlling the chassis heating device to be normally opened;
and when the environment temperature is not greater than the second preset temperature threshold, controlling the chassis heating device to be started when the air conditioner is in a defrosting mode, and controlling the chassis heating device to be closed for a preset time delay when the defrosting mode is finished.
In some embodiments, controlling the on and off of the chassis heating device of the air conditioner according to the relationship between the ambient temperature and the second preset temperature threshold comprises:
when the environment temperature is higher than the second preset temperature threshold value, controlling a timing switch of the chassis heating device;
and when the environment temperature is not greater than the second preset temperature threshold, controlling the chassis heating device to be started when the air conditioner is in a defrosting mode, and controlling the chassis heating device to be closed for a preset time delay when the defrosting mode is finished.
In some embodiments, the timing switch is turned on for a second predetermined time every first predetermined time.
In certain embodiments, the control method comprises:
and when the air conditioning system is in the standby state, controlling a timing switch of the chassis heating device.
In some embodiments, the timing switch is turned on for a predetermined time period every predetermined hour.
In certain embodiments, the control method comprises:
and when the ambient temperature is greater than the first preset temperature threshold value, controlling the chassis heating device to be closed.
An embodiment of the present invention provides a control device for a heating system, including:
a temperature detection unit for detecting an ambient temperature;
the judging unit is used for judging whether the air conditioner is in a standby state or not when the ambient temperature is less than or equal to a first preset temperature threshold value; and
and the control unit is used for controlling the opening and closing of a chassis heating device of the air conditioner according to the relation between the ambient temperature and a second preset temperature threshold value when the air conditioner is not in the standby state, wherein the second preset temperature threshold value is smaller than the first preset temperature threshold value.
In the control device of the heating system in the above embodiment, when the air conditioner system is not in the standby state, the opening and closing of the chassis heating device of the air conditioner can be controlled according to the relationship between the ambient temperature and the second preset temperature threshold value, so that the heating device can be quickly opened to avoid the icing of the unit chassis of the air conditioner when the unit chassis of the air conditioner is iced, the drainage of the unit chassis is smooth during the defrosting process, the power can be saved, and the use effect and the operation reliability of the whole air conditioner are improved.
In some embodiments, the control unit is configured to determine an icing level of the air conditioner according to a preset temperature range in which the ambient temperature is located, where one preset temperature range corresponds to one icing level, and the greater the icing level is, the longer the on-time of the chassis heating device is, and the shorter the off-time is.
In some embodiments, when the ambient temperature is greater than the second preset temperature threshold, the control unit is configured to control the chassis heating device to be normally open, and when the ambient temperature is not greater than the second preset temperature threshold, the control unit is configured to control the chassis heating device to be turned on when the air conditioner is in a defrosting mode, and when the defrosting mode is finished, the control unit is configured to control the chassis heating device to be turned off after a preset time delay.
In some embodiments, when the ambient temperature is greater than the second preset temperature threshold, the control unit is configured to control the chassis heating device timing switch; and when the environment temperature is not greater than the second preset temperature threshold, the control unit is used for controlling the chassis heating device to be turned on when the air conditioner is in a defrosting mode, and when the defrosting mode is finished, the control unit is used for controlling the chassis heating device to be turned off after a preset time delay.
In some embodiments, the timing switch is turned on for a second predetermined time every first predetermined time.
In some embodiments, the control unit is configured to control the chassis heating device timing switch when the air conditioning system is in the standby state.
In some embodiments, the timing switch is turned on for a predetermined time period every predetermined hour.
In some embodiments, the control unit is configured to control the chassis heating device to be turned off when the ambient temperature is greater than the first preset temperature threshold.
The present invention also provides an air conditioner, comprising: the control device according to any one of the above embodiments;
and the chassis heating device is arranged on a unit chassis of the air conditioner and is used for heating the unit chassis under the control of the control device.
In the air conditioner of the above embodiment, when the air conditioner system is not in the standby state, the opening and closing of the chassis heating device of the air conditioner can be controlled according to the relationship between the ambient temperature and the second preset temperature threshold value, so that the heating device can be quickly opened to avoid the icing of the unit chassis of the air conditioner when the unit chassis of the air conditioner is iced, the drainage of the unit chassis is smooth during defrosting, the electricity can be saved, and the use effect and the operation reliability of the whole air conditioner are improved.
Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a flowchart of a control method of a heating system according to an embodiment of the present invention.
Fig. 2 is a block diagram of an air conditioner according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of an air conditioner according to an embodiment of the present invention.
Fig. 4 is another flowchart of a control method of the heating system according to the embodiment of the present invention.
Fig. 5 is still another flowchart of a control method of the heating system according to the embodiment of the present invention.
Fig. 6 is still another flowchart of a control method of the heating system according to the embodiment of the present invention.
Fig. 7 is still another flowchart of a control method of the heating system according to the embodiment of the present invention.
Description of the main element symbols:
the air conditioner comprises an air conditioner 100, a control device 10, a temperature detection unit 12, a judgment unit 14, a control unit 16, a chassis heating device 20, a unit chassis 30 and a fan 40.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different configurations of embodiments of the invention. In order to simplify the disclosure of embodiments of the invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, embodiments of the invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, embodiments of the present invention provide examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Referring to fig. 1 to 3, a control method of a heating system is provided in an embodiment of the present invention. The control method of the heating system of the embodiment of the present invention is applied to the air conditioner 100. The control method of the heating system of the embodiment of the invention comprises the following steps:
step S10, detecting the ambient temperature;
step S12, judging whether the environmental temperature is less than or equal to a first preset temperature threshold value;
step S20, determining whether the air conditioner 100 is in a standby state when the ambient temperature is less than or equal to a first preset temperature threshold;
in step S30, when the air conditioner 100 is not in the standby state, the chassis heating device 20 of the air conditioner 100 is controlled to be turned on and off according to the relationship between the ambient temperature and the second preset temperature threshold.
The control method of the heating system according to the embodiment of the present invention can be realized by the control device 10 of the heating system according to the embodiment of the present invention. The control device 10 of the heating system comprises a temperature detection unit 12, a determination unit 14 and a control unit 16. Step S10 may be implemented by the temperature detection unit 12. The steps S12 and S20 may be implemented by the determination unit 14. Step S30 may be implemented by the control unit 16. That is, the temperature detection unit 12 is used to detect the ambient temperature. The determination unit 14 is configured to determine whether the ambient temperature is less than or equal to a first preset temperature threshold. The determination unit 14 is used to determine whether the air conditioner 100 is in a standby state when the ambient temperature is less than or equal to a first preset temperature threshold. The control unit 16 is configured to control the chassis heating device 20 of the air conditioner 100 to be turned on and off according to the relationship between the ambient temperature and the second preset temperature threshold when the air conditioner 100 is not in the standby state. The second preset temperature threshold is smaller than the first preset temperature threshold.
In the control method of the heating system and the control device 10 of the heating system of the above embodiment, when the system of the air conditioner 100 is not in the standby state, the chassis heating device 20 of the air conditioner 100 may be controlled to be turned on and off according to the relationship between the ambient temperature and the second preset temperature threshold, so that the heating device may be rapidly turned on when the unit chassis 30 of the air conditioner 100 is frozen to avoid the unit chassis 30 of the air conditioner 100 from being frozen, so that the drainage of the unit chassis 30 during defrosting is smooth, power may be saved, and the use effect and the operation reliability of the whole air conditioner 100 may be improved.
Specifically, the control device 10 of the heating system according to the embodiment of the present invention may be a controller or a processor, or a control panel, or a computer board or a main control panel of the air conditioner 100.
In some embodiments, the temperature sensing unit 12 may include a temperature sensor, which may be mounted on the outdoor unit of the air conditioner 100 or at another location outside the room, which is preferably not too far away from the outdoor unit. The outdoor unit further includes a compressor and a fan 40, the unit chassis 30 being located below the compressor and the fan 40 being located above the compressor. The air conditioner further includes an indoor unit. The temperature detection unit 12 is used to detect the ambient temperature of the outside. The temperature detecting unit 12 is connected to the control unit 16, and the ambient temperature detected by the temperature detecting unit 12 can be transmitted to the control unit 16 in a wired or wireless manner.
In some embodiments, the chassis heating device 20 may include an electric heating tube and/or a resistance wire, and when the chassis heating device 20 is turned on, the electric heating tube and/or the resistance wire generate heat to melt ice on the unit chassis 30 or prevent the unit chassis 30 from freezing. In one embodiment, the electrical heating tube is connected to the control unit 16 by a wire.
Specifically, the unit chassis 30 of the outdoor unit is easy to freeze when the ambient temperature is low, and the water generated by the air conditioner 100 after defrosting is easy to freeze on the chassis of the outdoor unit when the ambient temperature is low, whereas in the embodiment of the present invention, the first preset temperature threshold may be understood as a temperature dividing point at which the air conditioner 100 is located in a freezing area. When the ambient temperature is greater than the first preset temperature threshold, the outdoor unit is not easy to freeze, and when the ambient temperature is less than or equal to the first threshold temperature threshold, it indicates that the unit chassis 30 is in the temperature range of the frozen area, that is, at this time, the unit chassis 30 is easy to freeze.
Therefore, in the present embodiment, the determining unit 14 starts determining whether the air conditioner 100 is in the standby state when the ambient temperature is less than or equal to the first preset temperature threshold, and controls the chassis heating device 20 of the air conditioner 100 to be turned on and off according to the relationship between the ambient temperature and the second preset temperature threshold when the air conditioner 100 is not in the standby state. It should be noted that the state where the air conditioner 100 is not in the standby state may be understood that, in one embodiment, the air conditioner 100 is in the heating mode, and the outdoor unit is evaporated when the air conditioner 100 is in the heating mode, so that the outdoor unit is easily frozen, whereas in the present embodiment, the chassis heating device 20 of the air conditioner 100 is controlled to be turned on and off when the air conditioner 100 is not in the standby state, so that the outdoor unit is prevented from being frozen.
It should be noted that, because the data of the collected ambient temperature may fluctuate sometimes, when the ambient temperature is less than or equal to the first preset temperature threshold, it is determined whether the air conditioner 100 is in the standby state, and it can be understood that when the ambient temperature is less than or equal to the first preset temperature threshold and continues for a preset time period, it is determined whether the air conditioner 100 is in the standby state. In one example, the preset time period may be 10 minutes. The preset duration can be set according to actual conditions.
Referring to fig. 1 and 2, in some embodiments, a control method includes:
and step S110, controlling the chassis heating device 20 to be turned off when the ambient temperature is greater than the first preset temperature threshold.
The control method described above can be implemented by the control device 10 according to the embodiment of the present invention. Wherein step S110 is implemented by the control unit 16. That is, the control unit 16 is configured to control the chassis heating device 20 to be turned off when the ambient temperature is greater than the first preset temperature threshold. In this way, power can be saved.
In some embodiments, a control method comprises: the freezing level of the air conditioner 100 is determined according to the preset temperature range of the ambient temperature. The above control method can be implemented by the control unit 16 of the embodiment of the present invention. The control unit 16 is used to determine the icing level of the air conditioner 100 according to the preset temperature range of the ambient temperature. Wherein, a preset temperature range corresponds to an icing level, and the larger the icing level is, the longer the on-time of the chassis heating device 20 is, and the shorter the off-time is.
Thus, the on-time and the off-time of the chassis heating device 20 can be accurately controlled, and the phenomenon of icing of the unit chassis 30 can be avoided in time.
Specifically, as can be seen from the above analysis, when the ambient temperature is less than or equal to the first threshold temperature threshold, it indicates that the outdoor unit is in the temperature range of the freezing area, that is, the outdoor unit is prone to freezing. In the present embodiment, the temperature ranges of the ambient temperature are divided when the ambient temperature is less than or equal to the first threshold temperature threshold, and different preset ambient temperature ranges correspond to an icing level, and the preset ambient temperature range can be understood as a temperature range of the air conditioner 100 in an area prone to icing. That is, when the ambient temperature is within the preset temperature range, the ice prone region corresponds to an ice level.
In one embodiment, the icing area may be further classified into different levels when the air conditioner 100 is in an operating state and the ambient temperature is less than or equal to a first preset temperature threshold, where the ambient temperature is represented as T4, and when the ambient temperature is within a preset temperature range: a. thei+1＜T4≤AiAnd the ambient temperature is within the preset temperature range for L minutes. Wherein A is1=A，Ai+1≤AiI is more than or equal to 1, and A is a first preset temperature threshold. At this time, the air conditioner 100 can be obtained to be in the i-level icing area. When i =1, A2＜T4≤A1The air conditioner 100 is in a class 1 ice prone zone. When i =2, A3＜T4≤A2The air conditioner 100 is in a class 2 ice prone zone. When i =3, A4＜T4≤A3The air conditioner 100 is in a 3 ice prone zone, and so on. It should be noted that the icing level of the grade 1 icing zone is greater than the icing level of the grade 2 icing zone,the level of icing in the class 2 ice prone zone is greater than the level of icing in the class 3 ice prone zone. That is, the on-time X of the chassis heating device 20 is controlled when the air conditioner 100 is in the level 1 icing zone1Controlling the chassis heating device 20 to be on for a longer time X than when the air conditioner 100 is in the 2-stage icing area2. Controlling the off-time Y of the chassis heating device 20 when the air conditioner 100 is in the grade 1 icing zone1Is shorter than or equal to the closing time Y of the chassis heating device 20 when the air conditioner 100 is in the 2-stage icing area2. By analogy, that is, Xi＞Xi+1，Yi≤Yi+1。
Referring to fig. 1 and 2, in some embodiments, a control method includes:
and step S120, controlling the chassis heating device 20 to be switched on and off at a timing when the air conditioning system is in a standby state.
The control method described above can be implemented by the control device 10 according to the embodiment of the present invention. Wherein step S120 is implemented by the control unit 16. That is, the control unit 16 is used to control the chassis heating device 20 to be turned on and off at a timing when the air conditioning system is in a standby state.
Thus, the unit chassis 30 is not easy to freeze when the ambient temperature is too low.
In some embodiments, in step S120, the timing switch is turned on for a predetermined time every predetermined time. Thus, the power saving effect can be achieved while the icing of the unit chassis 30 is prevented. The preset hour range is 0.5-3 hours, and the preset minute range is 5-60 minutes.
In one embodiment, in a state where the ambient temperature is less than or equal to the first preset temperature threshold and the air conditioner 100 is in a standby state, the chassis heating device 20 may be controlled to be turned on for N minutes every M hours. In one embodiment, M is 2 hours and N is 30 minutes. M and N can be set according to actual conditions.
Referring to fig. 4, in some embodiments, step S30 includes:
step S31, judging whether the environmental temperature is larger than a second preset temperature threshold value;
step S32, controlling the chassis heating device 20 to be normally open when the ambient temperature is greater than a second preset temperature threshold;
step S34, when the ambient temperature is not greater than the second preset temperature threshold, controlling the chassis heating device 20 to be turned on when the air conditioner 100 is in the defrosting mode, and controlling the chassis heating device 20 to be turned off for a preset time delay when the defrosting mode is finished.
The control method according to the embodiment of the present invention can be realized by the control device 10 according to the embodiment of the present invention. Step S31 may be implemented by the determination unit 14. Steps S32 and S34 may be implemented by the control unit 16. That is, the determining unit 14 is configured to determine whether the ambient temperature is greater than a second preset temperature threshold, and when the ambient temperature is greater than the second preset temperature threshold, the control unit 16 is configured to control the chassis heating device 20 to be normally open; and when the ambient temperature is not greater than the second preset temperature threshold, the control unit 16 is configured to control the chassis heating device 20 to be turned on when the air conditioner 100 is in the defrosting mode, and when the defrosting mode is finished, the control unit 16 is configured to control the chassis heating device 20 to be turned off after a preset time delay.
Thus, the heating device can be quickly started when the unit chassis 30 of the air conditioner 100 is frozen so as to prevent the unit chassis 30 of the air conditioner 100 from being frozen, and the drainage of the unit chassis 30 is smooth when defrosting is performed.
Specifically, referring to fig. 5, in one embodiment, the first predetermined temperature threshold is 2 ℃ and the second predetermined temperature threshold is-8 ℃. It should be noted that the air conditioner 100 is located in an area that is very susceptible to icing when the ambient temperature is between-8 ℃ and 2 ℃. The air conditioner 100 is powered on, the temperature detecting unit 12 starts to detect the ambient temperature, the determining unit 14 determines whether the ambient temperature is greater than 2 ℃, and the chassis heating device 20 is not turned on when the ambient temperature is greater than 2 ℃. It is judged whether the air conditioner 100 is in a standby state when the ambient temperature is less than or equal to 2 deg.c. The chassis heating device 20 is controlled to be turned on and off at regular intervals, for example, every M hours for N minutes when the air conditioner 100 is in a standby state. In one embodiment, M is 2 hours and N is 30 minutes. M and N can be set according to actual conditions.
When the air conditioner 100 is not in the standby state, it is further determined whether the ambient temperature is greater than-8 ℃. The chassis heating device 20 is controlled to be normally open when the ambient temperature is higher than-8 ℃, that is, the heating is continuously carried out to avoid the unit chassis 30 from being frozen. When the ambient temperature is less than or equal to-8 ℃, the chassis heating device 20 is controlled to be turned on when the air conditioner 100 is in the defrosting mode, and when the defrosting mode is finished, the chassis heating device 20 is controlled to be turned off after a preset time delay, for example, after a time delay of T minutes. In one embodiment, T is 30 minutes. It should be noted that, when the ambient temperature is less than or equal to-8 ℃, if the air conditioner 100 does not start the defrosting mode, the chassis heating device 20 does not need to be started at this time.
Referring to fig. 2 and 6, in some embodiments, step S30 includes:
step S36, controlling the chassis heating device 20 to be switched on and off at a timing when the ambient temperature is greater than a second preset temperature threshold;
step S38, when the ambient temperature is not greater than the second preset temperature threshold, controlling the chassis heating device 20 to be turned on when the air conditioner 100 is in the defrosting mode, and controlling the chassis heating device 20 to be turned off for a preset time delay when the defrosting mode is finished.
The control method according to the embodiment of the present invention can be realized by the control device 10 according to the embodiment of the present invention. Steps S36 and S38 may be implemented by the control unit 16. That is, when the ambient temperature is greater than the second preset temperature threshold, the control unit 16 is configured to control the chassis heating device 20 to be switched on and off at regular intervals; and when the ambient temperature is not greater than the second preset temperature threshold, the control unit 16 is configured to control the chassis heating device 20 to be turned on when the air conditioner 100 is in the defrosting mode, and when the defrosting mode is finished, the control unit 16 is configured to control the chassis heating device 20 to be turned off after a preset time delay. In step S36, the timing switch is turned on every first preset minute. The first preset minute range is 10-60 minutes, and the second preset minute range is 10-60 minutes.
Thus, the heating device can be quickly started to avoid the icing of the unit chassis 30 of the air conditioner 100 when the unit chassis 30 of the air conditioner 100 is iced, so that the drainage of the unit chassis 30 is smooth during defrosting, and energy can be saved.
Specifically, referring to fig. 7, in one embodiment, the first predetermined temperature threshold is 0 ℃ and the second predetermined temperature threshold is-6 ℃. It should be noted that the air conditioner 100 is located in an area that is very susceptible to icing when the ambient temperature is between-6 ℃ and 0 ℃. The air conditioner 100 is powered on, the temperature detecting unit 12 starts to detect the ambient temperature, the determining unit 14 determines whether the ambient temperature is greater than 0 ℃, and the chassis heating device 20 is not turned on when the ambient temperature is greater than 0 ℃. It is judged whether the air conditioner 100 is in a standby state when the ambient temperature is less than or equal to 0 ℃. The chassis heating device 20 is controlled to be turned on and off at regular intervals, for example, every M hours for N minutes when the air conditioner 100 is in a standby state. In one embodiment, M is 2 hours and N is 30 minutes. M and N can be set according to actual conditions.
When the air conditioner 100 is not in the standby state, it is further determined whether the ambient temperature is greater than-6 ℃. And controlling a timing switch of the chassis heating device 20 when the ambient temperature is higher than-6 ℃, wherein the period of the timing switch is every X minutes, and the timing switch is started for Y minutes. When the ambient temperature is less than or equal to-6 ℃, the chassis heating device 20 is controlled to be turned on when the air conditioner 100 is in the defrosting mode, and when the defrosting mode is finished, the chassis heating device 20 is controlled to be turned off after a preset time delay, for example, after a time delay of T minutes. In one embodiment, T is 30 minutes. It should be noted that, when the ambient temperature is less than or equal to-6 ℃, if the air conditioner 100 does not start the defrosting mode, the chassis heating device 20 does not need to be started at this time. It should be noted that, at the end of the defrosting mode, the chassis heating device 20 is controlled to be turned off after a preset time delay, the preset time delay is related to the icing level of the air conditioner 100, and the higher the icing level is, the longer the preset time delay is.
Referring to fig. 2 and 3, an air conditioner 100 according to an embodiment of the present invention further includes a control device 10 and a chassis heating device 20 of any of the above embodiments, the chassis heating device 20 is mounted on a unit chassis 30 of the air conditioner 100, and the chassis heating device 20 is used for heating the unit chassis 30 under the control of the control device 10.
In the air conditioner 100 of the heating system of the above embodiment, when the system of the air conditioner 100 is not in the standby state, the on and off of the chassis heating device 20 of the air conditioner 100 may be controlled according to the relationship between the ambient temperature and the second preset temperature threshold, so that the heating device may be quickly turned on when the unit chassis 30 of the air conditioner 100 is frozen to avoid the unit chassis 30 of the air conditioner 100 from being frozen, the drainage of the unit chassis 30 during defrosting is smooth, power may be saved, and the use effect and the operation reliability of the whole air conditioner 100 may be improved.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processing module-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection having one or more wires (control method), a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of embodiments of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and not to be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (13)
1. A control method of a heating system for an air conditioner, the control method comprising:
detecting the ambient temperature;
when the ambient temperature is less than or equal to a first preset temperature threshold value and lasts for a preset time length, judging whether the air conditioner is in a standby state or not;
when the air conditioner is not in the standby state, controlling the opening and closing of a chassis heating device of the air conditioner according to the relation between the ambient temperature and a second preset temperature threshold value, wherein the second preset temperature threshold value is smaller than the first preset temperature threshold value;
when the air conditioner is in the standby state, controlling a timing switch of the chassis heating device; and
when the environment temperature is higher than the second preset temperature threshold value, controlling the chassis heating device to be normally opened;
and when the environment temperature is not greater than the second preset temperature threshold, controlling the chassis heating device to be started when the air conditioner is in a defrosting mode, and controlling the chassis heating device to be closed for a preset time delay when the defrosting mode is finished.
2. The control method according to claim 1, characterized by comprising: and determining the icing levels of the air conditioner according to the preset temperature range of the environment temperature, wherein one preset temperature range corresponds to one icing level, and the larger the icing level is, the longer the on-time and the shorter the off-time of the chassis heating device are.
3. The control method according to claim 1, wherein controlling the on and off of the floor heating device of the air conditioner according to the relationship between the ambient temperature and the second preset temperature threshold comprises:
when the environment temperature is higher than the second preset temperature threshold value, controlling a timing switch of the chassis heating device;
and when the environment temperature is not greater than the second preset temperature threshold, controlling the chassis heating device to be started when the air conditioner is in a defrosting mode, and controlling the chassis heating device to be closed for a preset time delay when the defrosting mode is finished.
4. A control method according to claim 3, wherein the timing switch is turned on for a second predetermined minute at intervals of a first predetermined minute.
5. The control method of claim 1, wherein the timing switch is turned on for a predetermined minute every predetermined hour.
6. The control method according to claim 1, characterized by comprising:
and when the ambient temperature is greater than the first preset temperature threshold value, controlling the chassis heating device to be closed.
7. A control device for a heating system, comprising:
a temperature detection unit for detecting an ambient temperature;
the judging unit is used for judging whether the air conditioner is in a standby state or not when the ambient temperature is less than or equal to a first preset temperature threshold value; and
the control unit is used for controlling the opening and closing of a chassis heating device of the air conditioner according to the relation between the ambient temperature and a second preset temperature threshold when the air conditioner is not in the standby state, wherein the second preset temperature threshold is smaller than the first preset temperature threshold;
when the environment temperature is higher than the second preset temperature threshold, the control unit is further used for controlling the chassis heating device to be normally opened, when the environment temperature is not higher than the second preset temperature threshold, the control unit is used for controlling the chassis heating device to be opened when the air conditioner is in a defrosting mode, and when the defrosting mode is finished, the control unit is used for controlling the chassis heating device to be closed for a preset time delay;
and when the air conditioner is in the standby state, the control unit is also used for controlling the timing switch of the chassis heating device.
8. The control device as claimed in claim 7, wherein the control unit is configured to determine the icing level of the air conditioner according to a preset temperature range in which the ambient temperature is located, one preset temperature range corresponding to one icing level, and the greater the icing level, the longer the on-time and the shorter the off-time of the chassis heating device.
9. The control device as claimed in claim 7, wherein the control unit is configured to control the chassis heating device timing switch when the ambient temperature is greater than the second preset temperature threshold, and to control the chassis heating device to be turned on when the air conditioner is in a defrosting mode when the ambient temperature is not greater than the second preset temperature threshold, and to control the chassis heating device to be turned off after a preset time delay when the defrosting mode is finished.
10. The control device of claim 9, wherein the timing switch is cycled between a first predetermined minute interval and a second predetermined minute interval.
11. The control device of claim 7, wherein the timed switch is turned on for a preset minute every preset hour.
12. The control device of claim 7, wherein the control unit is configured to control the chassis heating device to be turned off when the ambient temperature is greater than the first preset temperature threshold.
13. An air conditioner, comprising:
the control device of any one of claims 7 to 12;
and the chassis heating device is arranged on a unit chassis of the air conditioner and is used for heating the unit chassis under the control of the control device.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811613278.0A CN109682018B (en) | 2018-12-27 | 2018-12-27 | Control method and control device of heating system and air conditioner |
| CA3124587A CA3124587C (en) | 2018-12-27 | 2019-06-05 | Air conditioner, and control method and device for heating system thereof |
| EP19902095.9A EP3885662A4 (en) | 2018-12-27 | 2019-06-05 | Air conditioner, and control method and device for heating system thereof |
| PCT/CN2019/090143 WO2020133925A1 (en) | 2018-12-27 | 2019-06-05 | Air conditioner, and control method and device for heating system thereof |
| US17/357,850 US11788758B2 (en) | 2018-12-27 | 2021-06-24 | Air conditioner, and control method and device for heating system thereof |
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| CN201811613278.0A CN109682018B (en) | 2018-12-27 | 2018-12-27 | Control method and control device of heating system and air conditioner |
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| CN109682018B true CN109682018B (en) | 2020-06-30 |
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| CN110701730B (en) * | 2019-10-29 | 2021-08-27 | 宁波奥克斯电气股份有限公司 | Defrosting control method and device and air conditioner |
| CN111059699B (en) * | 2019-12-12 | 2020-11-24 | 珠海格力电器股份有限公司 | Electric heating belt control method and device, storage medium and air conditioner |
| CN111141008B (en) * | 2019-12-30 | 2021-09-21 | 宁波奥克斯电气股份有限公司 | Control method and control device for defrosting of air conditioner, storage medium and air conditioner |
| CN112212466B (en) * | 2020-10-21 | 2022-03-08 | 广东积微科技有限公司 | Control method and control device for chassis heater of air conditioner outdoor unit and air conditioner |
| CN114018310B (en) * | 2021-09-17 | 2023-11-03 | 合肥美的洗衣机有限公司 | Method and device for detecting icing of sewer, electronic equipment and storage medium |
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