CN112303818B - Defrosting control device and method of air conditioning system and air conditioning system - Google Patents
Defrosting control device and method of air conditioning system and air conditioning system Download PDFInfo
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- CN112303818B CN112303818B CN202011148187.1A CN202011148187A CN112303818B CN 112303818 B CN112303818 B CN 112303818B CN 202011148187 A CN202011148187 A CN 202011148187A CN 112303818 B CN112303818 B CN 112303818B
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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
- 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
- F24F1/009—Indoor units, e.g. fan coil units characterised by heating arrangements
- F24F1/0093—Indoor units, e.g. fan coil units characterised by heating arrangements with additional radiant heat-discharging elements, e.g. electric heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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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
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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
Abstract
The invention discloses a defrosting control device and method of an air conditioning system and the air conditioning system, wherein in the air conditioning system, an electric heating element is respectively connected to a first temperature limiter, a second temperature limiter and a thermal fuse, the first temperature limiter is connected to a third switch module, the second temperature limiter is connected to a second switch module, and the thermal fuse is connected to the first switch module; the device includes: an acquisition unit that acquires an indoor ambient temperature or an outdoor ambient temperature of the air conditioning system; the control unit determines whether the air conditioning system needs to enter defrosting according to the indoor environment temperature or the outdoor environment temperature; if the air conditioning system enters defrosting, the second switch module is controlled to be switched on, the third switch module is controlled to be switched off, and the defrosting process of the air conditioning system is controlled; and if the air conditioning system does not enter defrosting, the second switch module is controlled to be switched off, and the third switch module is controlled to be switched on. According to the scheme, the indoor temperature of the air conditioning system is increased when hot air defrosting is carried out, so that the comfort of a user is improved.
Description
Technical Field
The invention belongs to the technical field of air conditioning systems, and particularly relates to a defrosting control device and method of an air conditioning system and the air conditioning system, in particular to a working control device and method of a PTC electric auxiliary heating device of an air conditioning system in a hot defrosting state and the air conditioning system.
Background
When the air conditioning system carries out hot air defrosting, most of heat of the air conditioning system is used for defrosting of the outdoor unit, so that the indoor temperature is reduced, and the comfort of a user is influenced.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention aims to provide a defrosting control device and method of an air conditioning system and the air conditioning system, so as to solve the problem that the comfort of a user is affected by the reduction of the indoor temperature when the air conditioning system carries out hot defrosting, and achieve the effect of improving the indoor temperature and improving the comfort of the user when the air conditioning system carries out hot defrosting.
The invention provides a defrosting control device of an air conditioning system, wherein the air conditioning system comprises a heating module, a first switch module, a second switch module and a third switch module; the heating module comprises a temperature controller, an electric heating element and a thermal fuse; the temperature controller comprises a first temperature limiter and a second temperature limiter; the electric heating element is respectively connected to the first temperature limiter, the second temperature limiter and the thermal fuse link, the first temperature limiter is connected to the third switch module, the second temperature limiter is connected to the second switch module, and the thermal fuse link is connected to the first switch module; the defrosting control device of the air conditioning system comprises: an acquisition unit and a control unit; wherein the acquisition unit is configured to acquire an indoor ambient temperature or an outdoor ambient temperature of the air conditioning system; the control unit is configured to determine whether the air conditioning system needs to enter defrosting according to the indoor environment temperature or the outdoor environment temperature; if the air conditioning system needs to enter defrosting, controlling the second switch module to be switched on, controlling the third switch module to be switched off, and controlling the defrosting process of the air conditioning system; and if the air conditioning system does not need to enter defrosting, controlling the second switch module to be switched off and controlling the third switch module to be switched on.
In some embodiments, the disconnect temperature of the first temperature limiter is lower than the disconnect temperature of the second temperature limiter and the recovery temperature of the first temperature limiter is lower than the recovery temperature of the second temperature limiter.
In some embodiments, the control unit determining whether the air conditioning system needs to enter defrosting according to the indoor ambient temperature or the outdoor ambient temperature includes: and if the indoor environment temperature is higher than a first set temperature or the outdoor environment temperature is lower than a second set temperature, determining that the air conditioning system needs to enter defrosting.
In some embodiments, the control unit, controlling a defrosting process of the air conditioning system, includes: after the air conditioning system enters a first set time after defrosting, determining whether defrosting is finished or not; if the defrosting is determined to be finished, controlling the working state of the air conditioning system to return to the heating state of the air conditioning system before the air conditioning system enters the defrosting state, controlling the third switch module to be switched on, controlling the second switch module to be switched off, and controlling the working state of the electric heating element according to the pipe temperature of the air conditioning system; and if the defrosting is not finished, continuing to keep the second switch module to be switched off and the third switch module to be switched on.
In some embodiments, the control unit, controlling the operating state of the electric heating element according to the tube temperature of the air conditioning system, includes: if the tube temperature is higher than a third set temperature, controlling the electric heating element to be closed, and turning off the second switch module and the third switch module at the moment; and if the tube temperature is less than or equal to a third set temperature, controlling the third switch module to be switched on, controlling the second switch module to be switched off and controlling the electric heating element to be switched on under the condition that the first temperature limiter recovers the temperature after a second set time.
In accordance with another aspect of the present invention, there is provided an air conditioning system including: the defrosting control device of the air conditioning system is described above.
In another aspect, the invention provides a defrosting control method for an air conditioning system, where the air conditioning system includes a heating module, a first switch module, a second switch module, and a third switch module; the heating module comprises a temperature controller, an electric heating element and a thermal fuse; the temperature controller comprises a first temperature limiter and a second temperature limiter; the electric heating element is respectively connected to the first temperature limiter, the second temperature limiter and the thermal fuse link, the first temperature limiter is connected to the third switch module, the second temperature limiter is connected to the second switch module, and the thermal fuse link is connected to the first switch module; the defrosting control method of the air conditioning system comprises the following steps: acquiring the indoor ambient temperature or the outdoor ambient temperature of the air conditioning system; determining whether the air-conditioning system needs to enter defrosting according to the indoor environment temperature or the outdoor environment temperature; if the air conditioning system needs to enter defrosting, controlling the second switch module to be switched on, controlling the third switch module to be switched off, and controlling the defrosting process of the air conditioning system; and if the air conditioning system does not need to enter defrosting, controlling the second switch module to be switched off and controlling the third switch module to be switched on.
In some embodiments, the disconnect temperature of the first temperature limiter is lower than the disconnect temperature of the second temperature limiter and the recovery temperature of the first temperature limiter is lower than the recovery temperature of the second temperature limiter.
In some embodiments, determining whether the air conditioning system needs to enter defrosting according to the indoor ambient temperature or the outdoor ambient temperature includes: and if the indoor environment temperature is higher than a first set temperature or the outdoor environment temperature is lower than a second set temperature, determining that the air conditioning system needs to enter defrosting.
In some embodiments, controlling a defrosting process of the air conditioning system includes: after the air conditioning system enters a first set time after defrosting, determining whether defrosting is finished or not; if the defrosting is determined to be finished, controlling the working state of the air conditioning system to return to the heating state of the air conditioning system before the air conditioning system enters the defrosting state, controlling the third switch module to be switched on, controlling the second switch module to be switched off, and controlling the working state of the electric heating element according to the pipe temperature of the air conditioning system; and if the defrosting is not finished, continuing to keep the second switch module to be switched off and the third switch module to be switched on.
In some embodiments, controlling the operating state of the electric heating element according to the tube temperature of the air conditioning system includes: if the tube temperature is higher than a third set temperature, controlling the electric heating element to be closed, and turning off the second switch module and the third switch module at the moment; and if the tube temperature is less than or equal to a third set temperature, controlling the third switch module to be switched on, controlling the second switch module to be switched off and controlling the electric heating element to be switched on under the condition that the first temperature limiter recovers the temperature after a second set time.
Therefore, according to the scheme of the invention, when the air-conditioning system carries out hot defrosting, the indoor temperature of the air-conditioning system is increased to improve the comfort of users by utilizing the PTC electric auxiliary heating device with the two temperature limiters and the air-conditioning system controller with the two relays.
Furthermore, according to the scheme of the invention, the PTC electric auxiliary heating device with the two temperature limiters and the air conditioning system controller with the two relays are used for reliably protecting the temperature brought to the periphery of the heat exchanger of the indoor unit by the air conditioning system due to too low rotating speed during hot defrosting, and the safety of improving the indoor temperature during defrosting of the air conditioning system is also improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic structural diagram of a defrosting control device of an air conditioning system according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of an electrically assisted thermal device;
FIG. 3 is a schematic control flow diagram of an embodiment of an electrically assisted thermal device;
FIG. 4 is a schematic structural diagram of an embodiment of an air conditioning system controller and a PTC electrical auxiliary heating device;
FIG. 5 is a flowchart illustrating an embodiment of a defrosting control method of an air conditioning system according to the present invention;
fig. 6 is a flowchart illustrating an embodiment of controlling a defrosting process of the air conditioning system according to the method of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to an embodiment of the present invention, there is provided a defrosting control apparatus of an air conditioning system. Referring to fig. 1, a schematic diagram of an embodiment of the apparatus of the present invention is shown. The air conditioning system comprises a heating module (such as a PTC electric auxiliary heating device), a first switch module (such as a relay KM1), a second switch module (such as a relay KM2) and a third switch module (such as a relay KM 3). The heating module comprises a temperature controller, an electric heating element and a thermal fuse. The temperature controller comprises a first temperature limiter and a second temperature limiter. The electric heating element is connected to the first temperature limiter, the second temperature limiter and the thermal fuse respectively, the first temperature limiter is connected to the third switch module, the second temperature limiter is connected to the second switch module, and the thermal fuse is connected to the first switch module.
Specifically, the heating module comprises a temperature controller, an electric heating element and a thermal fuse. The temperature controller and the thermal fuse link are protection devices, the main parameters of the temperature controller comprise a cut-off temperature and a recovery temperature, and the main characteristic is that the temperature of the temperature controller reaches above the cut-off temperature, and the temperature controller can be automatically cut off; when the temperature of the temperature controller is recovered to be below the recovery temperature, the temperature controller can be automatically closed, the disconnection temperature is higher than the recovery temperature, and meanwhile, the electric heating element is mainly a PTC heating element. The thermal link belongs to a disposable protection device, when the temperature reaches the disconnection temperature of the thermal link, the thermal link can be automatically disconnected, the thermal link is in an unrecoverable state at the moment, and meanwhile, the whole heating module is in an invalid state.
The relay KM1, the relay KM2 and the relay KM3 are relays on an indoor unit mainboard, the on or off control logic is controlled by the indoor unit mainboard, the relay KM2 and the second temperature limiter are connected in series and are mainly used for an electric auxiliary heating working mode under a defrosting working condition of an air conditioning system, the relay KM3 and the first temperature limiter are connected in series and are used for an electric auxiliary heating working mode under user behaviors, the two working modes are mutually exclusive, and the other one is kept off under the condition that one of the two working modes is normally on.
The defrosting control device of the air conditioning system comprises: an acquisition unit and a control unit.
Wherein the acquisition unit is configured to acquire an indoor ambient temperature or an outdoor ambient temperature of the air conditioning system.
The control unit is configured to determine whether the air conditioning system needs to enter defrosting according to the indoor environment temperature or the outdoor environment temperature; if the air conditioning system needs to enter defrosting, controlling the second switch module to be switched on, controlling the third switch module to be switched off, and controlling the defrosting process of the air conditioning system; and if the air conditioning system does not need to enter defrosting, controlling the second switch module to be switched off and controlling the third switch module to be switched on.
Specifically, a program on an indoor unit mainboard of the air conditioning system judges whether the air conditioning system needs to enter defrosting through the conditions in the upper table, if the air conditioning system enters defrosting, the rotating speed of a motor in a defrosting state is low at the moment, generally about 100 rpm-300 rpm, the indoor unit mainboard controls a relay KM3 to be disconnected, and a relay KM2 is actuated; if the air conditioning system judges that the defrosting working condition is not needed to be entered at the moment, the indoor unit keeps the original electric auxiliary heating working mode, namely the relay KM3 is closed, and the relay KM2 is disconnected.
From this, adopt two limit for temperature wares through the module that generates heat like PTC electricity auxiliary heating device to adopt two relays on the air conditioning system main control device (being air conditioning system controller), guarantee that air conditioning system can satisfy electrical safety and improve indoor travelling comfort under different operational mode when can satisfying steam defrosting.
In some embodiments, the disconnect temperature of the first temperature limiter is lower than the disconnect temperature of the second temperature limiter and the recovery temperature of the first temperature limiter is lower than the recovery temperature of the second temperature limiter.
Specifically, the first temperature limiter and the second temperature limiter have different disconnection temperatures, wherein the disconnection temperature of the first temperature limiter is lower than the disconnection temperature of the second temperature limiter, and further the recovery temperature of the first temperature limiter is lower than the recovery temperature of the second temperature limiter. For example, the specific value can be that the disconnection temperature of the first temperature limiter is 80 ℃, and the recovery temperature is 55 ℃; the second temperature limiter had an off temperature of 110 deg.C and a recovery temperature of 85 deg.C.
In some embodiments, the control unit determining whether the air conditioning system needs to enter defrosting according to the indoor ambient temperature or the outdoor ambient temperature includes: the control unit is specifically further configured to determine that the air conditioning system needs to enter defrosting if the indoor ambient temperature is greater than a first set temperature or the outdoor ambient temperature is less than a second set temperature.
Specifically, the air conditioning system acquires the outdoor temperature condition through the outdoor temperature sensor, and the outdoor temperature condition is used as the outdoor working condition, so that whether the air conditioning system enters hot air defrosting is judged. Wherein, the first set temperature may be 15 ℃, the second set temperature may be 1 ℃, and then the condition of entering into defrosting may be: the indoor temperature is more than 15 ℃ or the outdoor temperature is more than 1 ℃.
In some embodiments, the control unit, in a case where the air conditioning system enters defrosting, and the second switching module is turned on and the third switching module is turned off, controls a defrosting process of the air conditioning system, including:
the control unit is specifically configured to determine whether defrosting is finished after a first set time period after the air conditioning system enters defrosting. Specifically, when the air conditioning system enters defrosting, the rotating speed of a motor of the indoor unit is low, the electric auxiliary heat is turned on, the surrounding temperature is high due to the fact that the pipe temperature of a heat exchanger of the indoor unit is high and the electric auxiliary heat is turned on, the high temperature exceeds the turn-off temperature of the first temperature limiter, the first temperature limiter is in a turn-off state, the second temperature limiter is in a pull-in state, and defrosting time is generally about 4-10 minutes.
The control unit is specifically configured to, if it is determined that defrosting is finished, control the operating state of the air conditioning system to return to a heating state before the air conditioning system enters defrosting, control the third switch module to be turned on, control the second switch module to be turned off, and control the operating state of the electric heating element according to the tube temperature of the air conditioning system.
Specifically, the air conditioning system judges whether defrosting is finished or not, if defrosting is finished, the original behavior of the user is returned, on one hand, the indoor unit main board controls the relay KM3 to be attracted, the relay KM2 is disconnected, and the air conditioning system judges whether the electric auxiliary heating device is turned on or not through the pipe temperature.
The control unit is specifically configured to continue to keep the second switch module off and the third switch module on if it is determined that defrosting is not finished.
Specifically, the air conditioning system judges whether defrosting is finished or not, if defrosting is not finished, the state that the air conditioning system does not enter a defrosting working condition is continuously maintained, so that the indoor unit keeps the original electric auxiliary heating working mode, namely the relay KM3 is closed, and the relay KM2 is disconnected.
In some embodiments, the control unit, controlling the operating state of the electric heating element according to the tube temperature of the air conditioning system, includes:
the control unit is specifically configured to control the electric heating element to be turned off if the tube temperature is greater than a third set temperature, and at this time, the second switch module and the third switch module are both turned off.
The control unit is specifically configured to control the third switch module to be turned on after a second set time period, control the second switch module to be turned off, and control the electric heating element to be turned on when the first temperature limiter recovers the temperature if the tube temperature is less than or equal to a third set temperature.
Specifically, the third set temperature may be 48 ℃. If the temperature of the tube temperature is higher than 48 ℃, the electric auxiliary heating device is turned off, and the relay KM2 and the relay KM3 are both in an off state. If the temperature of the pipe temperature is less than or equal to 48 ℃, the time of the main board program of the indoor unit starts to be timed, the relay KM3 is controlled to be closed by the main board of the indoor unit after about 4-5 minutes, and the relay KM2 is disconnected, so that the electric auxiliary heating device is started.
The first temperature limiter with electric auxiliary heating is mainly considered to be higher than the disconnection temperature of the first temperature limiter due to the fact that the ambient temperature is high when the first temperature limiter is defrosted in 4-5 minutes, the first temperature limiter is disconnected, the air conditioning system is automatically switched to the original behavior of a user after defrosting is finished, the rotating speed of the fan is increased, and the temperature of the first temperature limiter is reduced. For example: and judging whether the temperature of a first temperature limiter of the electric auxiliary heating device is less than the recovery temperature or not, and if the temperature of the first temperature limiter is less than the recovery temperature, starting the electric auxiliary heating device. And if the temperature of the first temperature limiter is greater than or equal to the recovery temperature, waiting for the temperature of the first temperature limiter to be less than the recovery temperature.
Through a large number of tests, the technical scheme of the invention is adopted, and when the air-conditioning system carries out hot air defrosting, the PTC electric auxiliary heating device with two temperature limiters and the air-conditioning system controller with two relays are utilized, so that the indoor temperature of the air-conditioning system is increased when the air-conditioning system carries out hot air defrosting, and the comfort of a user is improved; and the air conditioning system reliably protects the temperature brought around the heat exchanger of the internal machine due to too low rotating speed during hot defrosting, and the safety of improving the indoor temperature during defrosting of the air conditioning system is also improved.
According to an embodiment of the present invention, there is also provided an air conditioning system corresponding to a defrosting control apparatus of the air conditioning system. The air conditioning system may include: the defrosting control device of the air conditioning system is described above.
In order to improve the comfort of a user when the air conditioning system carries out hot air defrosting, an electric auxiliary heating device needs to be arranged when the air conditioning system carries out hot air defrosting. An electric auxiliary heating device such as a Positive Temperature Coefficient (PTC) thermistor is widely used in an air conditioning system as a heating element, and mainly comprises a heating element, a ceramic plate, a Temperature limiter, a cooling fin, an aluminum pipe, a thermal fuse, a high-Temperature resistant injection molding part, a connecting wire and the like.
When the electric auxiliary heating device works, the temperature limiter and the thermal fuse link mainly play a role in electrical safety protection, and both have protection temperatures. When hot air is defrosted, the lower the rotating speed is, the more obvious defrosting effect is achieved, but the lower the rotating speed is, the temperature brought to the periphery of the heat exchanger of the internal machine is relatively higher, the temperature of the electric auxiliary heating device is higher than the protection temperature of the temperature limiter of the electric auxiliary heating device at the temperature, and the electric auxiliary heating device is closed. And if the temperature limiter with higher protection temperature is adopted, the electric auxiliary heat cannot be protected when the air conditioning system switches the modes, and the electric safety is not satisfied at the moment, so that the potential safety hazard is easily caused.
In some embodiments, the present invention provides an air conditioning system and a method for controlling the operation of a PTC electric auxiliary heating device in a hot defrosting state, in which two temperature limiters are used as the PTC electric auxiliary heating device, and two relays are used in a main control device (i.e., an air conditioning system controller) of the air conditioning system, so that it is ensured that the air conditioning system can satisfy electrical safety and improve indoor comfort in different operation modes when hot defrosting is performed. That is to say, in the scheme of the invention, the defrosting mode is a low-rotation-speed electric auxiliary heating opening mode under hot defrosting, the electric auxiliary heating is a double temperature limiter, and the electric auxiliary heating control mode is a double relay.
Specifically, the problem that the PTC of the air conditioning system cannot work normally due to the fact that the temperature limiter is disconnected due to high ambient temperature when the PTC is subjected to low-speed hot air defrosting is solved; and the problem that the protection temperature of the electric auxiliary heating temperature limiter is higher, and the switching of the user mode of the air conditioning system cannot meet the electric safety when the electric auxiliary heating is started. The electric auxiliary heating device realizes normal work at low rotating speed and high temperature in a double-temperature controller and double-relay mode, and can simultaneously ensure the electrical safety problem in other refrigeration or heating modes; the electric auxiliary heating can work normally when the air conditioning system switches different user modes, the electric safety requirements are met, and the safety is improved.
The problem that the indoor temperature is reduced under the defrosting state of the air conditioning system, so that the comfort of a user is reduced is solved. The air conditioning system can enable heating elements such as PTC to work normally under a hot air defrosting mode at a low rotating speed, and improves the indoor comfort.
The air conditioning system is aimed at the problem that the defrosting effect is required to be ensured because an indoor fan is usually required to be stopped in the defrosting process. Heating elements such as electric auxiliary heating and the like are normally opened in the defrosting state of the air conditioning system, the problem that the indoor temperature of the air conditioning system is reduced in the hot air defrosting process is solved through electric auxiliary heating, the indoor overall comfort is improved, and the defrosting effect of the air conditioning system is guaranteed.
The following describes an exemplary implementation process of the scheme of the present invention with reference to the examples shown in fig. 2 to 4.
FIG. 2 is a schematic structural diagram of an embodiment of an electrically assisted thermal device. In FIG. 2, HEAT-N is a heating neutral wire, HEAT-L is a heating live wire, STA1 is a first temperature limiter, STA2 is a second temperature limiter, EH1 is an electric heating element, and FUT is a thermal fuse.
As shown in fig. 2, the dashed box is a heat generating module (such as a PTC electrical auxiliary heating device), and the elements in the dashed box are the constituent components of the heat generating module. The heating module comprises a temperature controller, an electric heating element and a thermal fuse. The temperature controller and the thermal fuse link are protection devices, the main parameters of the temperature controller comprise a cut-off temperature and a recovery temperature, and the main characteristic is that the temperature of the temperature controller reaches above the cut-off temperature, and the temperature controller can be automatically cut off; when the temperature of the temperature controller is recovered to be below the recovery temperature, the temperature controller can be automatically closed, the disconnection temperature is higher than the recovery temperature, and meanwhile, the electric heating element is mainly a PTC heating element. The thermal link belongs to a disposable protection device, when the temperature reaches the disconnection temperature of the thermal link, the thermal link can be automatically disconnected, the thermal link is in an unrecoverable state at the moment, and meanwhile, the whole heating module is in an invalid state.
Fig. 4 is a schematic structural diagram of an embodiment of an air conditioning system controller and a PTC electric auxiliary heating device. As shown in fig. 4, the thermostat includes a first temperature limiter and a second temperature limiter. The air conditioning system controller comprises a relay KM1, a relay KM2 and a relay KM 3.
In the examples shown in fig. 2 and 4, the relay KM1, the relay KM2 and the relay KM3 are relays on a main board of an indoor unit, the on or off control logic of the relays is controlled by the main board of the indoor unit, the relay KM2 and the second temperature limiter are connected in series and mainly used for an electrically-assisted heating working mode under a defrosting condition of an air conditioning system, the relay KM3 and the first temperature limiter are connected in series and used for an electrically-assisted heating working mode under a user behavior, the two working modes are mutually exclusive, and it is ensured that one of the two working modes is kept off when the other one is normally on.
For example: the user behavior refers to the operation behavior of the user on the air conditioner, and the user selects the heating mode to increase the temperature and switches the air supply mode.
For example: mutual exclusion indicates that the two modes are contradictory, and cannot be turned on at the same time, one of them being turned on and the other being necessarily turned off. In electrical safety, the electricity is assisted when hot during operation and must be satisfied relevant electrical safety, and the temperature around the electricity is assisted when these two kinds of mode during operation and is heated is very inequality, consequently need adopt two kinds of mode, guarantees that the electricity is assisted when hot during operation and takes place emergency such as the air outlet and blocks up or the fan suspends and can open the protection, auto-power-off.
The disconnection temperatures of the first temperature limiter and the second temperature limiter are different, wherein the disconnection temperature of the first temperature limiter is lower than the disconnection temperature of the second temperature limiter, and further the recovery temperature of the first temperature limiter is lower than the recovery temperature of the second temperature limiter. For example, the specific value can be that the disconnection temperature of the first temperature limiter is 80 ℃, and the recovery temperature is 55 ℃; the second temperature limiter had an off temperature of 110 deg.C and a recovery temperature of 85 deg.C.
FIG. 3 is a control flow diagram of an embodiment of an electrically assisted thermal device. As shown in fig. 3, the control flow of the electric auxiliary heating device of the air conditioning system may include:
Specifically, the air conditioning system acquires the outdoor temperature condition through the outdoor temperature sensor, and the outdoor temperature condition is used as the outdoor working condition, so that whether the air conditioning system enters hot air defrosting is judged. The specific temperature determination method can be shown in the following table:
the program on the mainboard of the indoor unit of the air-conditioning system judges whether the air-conditioning system needs to enter defrosting through the conditions on the upper table, if the air-conditioning system enters defrosting, the rotating speed of the motor in a defrosting state is low at the moment, generally about 100 rpm-300 rpm, the mainboard of the indoor unit controls the relay KM3 to be disconnected, the relay KM2 is actuated, and the step 2 is executed; if the air conditioning system judges that the defrosting working condition is not needed to be entered at the moment, the indoor unit keeps the original electric auxiliary heating working mode, namely the relay KM3 is closed, and the relay KM2 is disconnected.
When the air conditioning system enters defrosting, the rotating speed of a motor of the indoor unit is low, the electric auxiliary heat is started at the same time, the ambient temperature is high due to the fact that the pipe temperature of a heat exchanger of the indoor unit is high and the electric auxiliary heat is started, the high temperature can exceed the disconnection temperature of the first temperature limiter, the first temperature limiter is in the disconnection state, the second temperature limiter is in the suction state, and defrosting time is generally about 4-10 minutes.
For example: judging whether defrosting is finished or not, comprising the following steps: the outdoor unit environment temperature, the outdoor heat exchanger pipeline temperature and the defrosting operation time are combined for judgment, for example, after the defrosting time reaches 10min or the defrosting operation is continuously carried out for a certain time, the outdoor heat exchanger pipeline temperature is greater than T ℃, and the specific numerical value relates to confidentiality and the like.
And 3, returning to the original behavior of the user if defrosting is finished, wherein the indoor unit main board controls the relay KM3 to be closed and the relay KM2 to be disconnected on one hand, and the step 4 is executed on the other hand.
And 4, judging whether the electric auxiliary heating device is started or not by the air conditioning system through the pipe temperature.
In step 4, if the temperature of the tube temperature is higher than 48 ℃, the electric auxiliary heating device is turned off, and the relay KM2 and the relay KM3 are both in an off state. Wherein the tube temperature is the tube temperature of the indoor heat exchanger.
In step 4, if the temperature of the pipe temperature is less than or equal to 48 ℃, the time of the main board program of the indoor unit starts to be timed, the relay KM3 is controlled to be closed by the main board of the indoor unit after about 4-5 minutes, and the relay KM2 is disconnected, so that the electric auxiliary heating device is started.
The first temperature limiter with electric auxiliary heating is mainly considered to be higher than the disconnection temperature of the first temperature limiter due to the fact that the ambient temperature is high when the first temperature limiter is defrosted in 4-5 minutes, the first temperature limiter is disconnected, the air conditioning system is automatically switched to the original behavior of a user after defrosting is finished, the rotating speed of the fan is increased, and the temperature of the first temperature limiter is reduced. For example: and judging whether the temperature of a first temperature limiter of the electric auxiliary heating device is less than the recovery temperature or not, and if the temperature of the first temperature limiter is less than the recovery temperature, starting the electric auxiliary heating device. And if the temperature of the first temperature limiter is greater than or equal to the recovery temperature, waiting for the temperature of the first temperature limiter to be less than the recovery temperature.
Since the processing and functions of the air conditioning system of this embodiment are basically corresponding to the embodiments, principles and examples of the apparatus shown in fig. 1, the description of this embodiment is not given in detail, and reference may be made to the related descriptions in the embodiments, which are not described herein again.
Through a large number of tests, the technical scheme of the invention improves the comfort of the whole indoor environment and ensures the defrosting effect of the air conditioning system by utilizing the PTC electric auxiliary heating device with two temperature limiters and the air conditioning system controller with two relays when the air conditioning system carries out hot air defrosting.
According to an embodiment of the present invention, there is also provided a defrosting control method of an air conditioning system corresponding to the air conditioning system, as shown in fig. 5, which is a schematic flow chart of an embodiment of the method of the present invention. The air conditioning system comprises a heating module (such as a PTC electric auxiliary heating device), a first switch module (such as a relay KM1), a second switch module (such as a relay KM2) and a third switch module (such as a relay KM 3). The heating module comprises a temperature controller, an electric heating element and a thermal fuse. The temperature controller comprises a first temperature limiter and a second temperature limiter. The electric heating element is connected to the first temperature limiter, the second temperature limiter and the thermal fuse respectively, the first temperature limiter is connected to the third switch module, the second temperature limiter is connected to the second switch module, and the thermal fuse is connected to the first switch module.
Specifically, the heating module comprises a temperature controller, an electric heating element and a thermal fuse. The temperature controller and the thermal fuse link are protection devices, the main parameters of the temperature controller comprise a cut-off temperature and a recovery temperature, and the main characteristic is that the temperature of the temperature controller reaches above the cut-off temperature, and the temperature controller can be automatically cut off; when the temperature of the temperature controller is recovered to be below the recovery temperature, the temperature controller can be automatically closed, the disconnection temperature is higher than the recovery temperature, and meanwhile, the electric heating element is mainly a PTC heating element. The thermal link belongs to a disposable protection device, when the temperature reaches the disconnection temperature of the thermal link, the thermal link can be automatically disconnected, the thermal link is in an unrecoverable state at the moment, and meanwhile, the whole heating module is in an invalid state.
The relay KM1, the relay KM2 and the relay KM3 are relays on an indoor unit mainboard, the on or off control logic is controlled by the indoor unit mainboard, the relay KM2 and the second temperature limiter are connected in series and are mainly used for an electric auxiliary heating working mode under a defrosting working condition of an air conditioning system, the relay KM3 and the first temperature limiter are connected in series and are used for an electric auxiliary heating working mode under user behaviors, the two working modes are mutually exclusive, and the other one is kept off under the condition that one of the two working modes is normally on.
The defrosting control method of the air conditioning system comprises the following steps: step S110 and step S120.
At step S110, an indoor ambient temperature or an outdoor ambient temperature of the air conditioning system is acquired.
At step S120, determining whether the air conditioning system needs to enter defrosting according to the indoor ambient temperature or the outdoor ambient temperature; if the air conditioning system needs to enter defrosting, controlling the second switch module to be switched on, controlling the third switch module to be switched off, and controlling the defrosting process of the air conditioning system; and if the air conditioning system does not need to enter defrosting, controlling the second switch module to be switched off and controlling the third switch module to be switched on.
Specifically, a program on an indoor unit mainboard of the air conditioning system judges whether the air conditioning system needs to enter defrosting through the conditions in the upper table, if the air conditioning system enters defrosting, the rotating speed of a motor in a defrosting state is low at the moment, generally about 100 rpm-300 rpm, the indoor unit mainboard controls a relay KM3 to be disconnected, and a relay KM2 is actuated; if the air conditioning system judges that the defrosting working condition is not needed to be entered at the moment, the indoor unit keeps the original electric auxiliary heating working mode, namely the relay KM3 is closed, and the relay KM2 is disconnected.
From this, adopt two limit for temperature wares through the module that generates heat like PTC electricity auxiliary heating device to adopt two relays on the air conditioning system main control device (being air conditioning system controller), guarantee that air conditioning system can satisfy electrical safety and improve indoor travelling comfort under different operational mode when can satisfying steam defrosting.
In some embodiments, the disconnect temperature of the first temperature limiter is lower than the disconnect temperature of the second temperature limiter and the recovery temperature of the first temperature limiter is lower than the recovery temperature of the second temperature limiter.
Specifically, the first temperature limiter and the second temperature limiter have different disconnection temperatures, wherein the disconnection temperature of the first temperature limiter is lower than the disconnection temperature of the second temperature limiter, and further the recovery temperature of the first temperature limiter is lower than the recovery temperature of the second temperature limiter. For example, the specific value can be that the disconnection temperature of the first temperature limiter is 80 ℃, and the recovery temperature is 55 ℃; the second temperature limiter had an off temperature of 110 deg.C and a recovery temperature of 85 deg.C.
In some embodiments, the determining whether the air conditioning system needs to enter defrosting according to the indoor ambient temperature or the outdoor ambient temperature in step S120 includes: and if the indoor environment temperature is higher than a first set temperature or the outdoor environment temperature is lower than a second set temperature, determining that the air conditioning system needs to enter defrosting.
Specifically, the air conditioning system acquires the outdoor temperature condition through the outdoor temperature sensor, and the outdoor temperature condition is used as the outdoor working condition, so that whether the air conditioning system enters hot air defrosting is judged. Wherein, the first set temperature may be 15 ℃, the second set temperature may be 1 ℃, and then the condition of entering into defrosting may be: the indoor temperature is more than 15 ℃ or the outdoor temperature is more than 1 ℃.
In some embodiments, in step S120, in the case that the air conditioning system enters into defrosting, and the second switch module is turned on and the third switch module is turned off, a defrosting process of the air conditioning system is controlled, which may be referred to as the following exemplary description.
The following further describes a specific process of controlling the defrosting process of the air conditioning system in step S120 with reference to a schematic flow chart of an embodiment of controlling the defrosting process of the air conditioning system in the method of the present invention shown in fig. 6, and the specific process may include: step S210 to step S230.
Step S210, after the air conditioning system enters a first set time after defrosting, determining whether defrosting is finished. Specifically, when the air conditioning system enters defrosting, the rotating speed of a motor of the indoor unit is low, the electric auxiliary heat is turned on, the surrounding temperature is high due to the fact that the pipe temperature of a heat exchanger of the indoor unit is high and the electric auxiliary heat is turned on, the high temperature exceeds the turn-off temperature of the first temperature limiter, the first temperature limiter is in a turn-off state, the second temperature limiter is in a pull-in state, and defrosting time is generally about 4-10 minutes.
Step S220, if the defrosting is determined to be finished, controlling the working state of the air conditioning system to return to the heating state of the air conditioning system before the air conditioning system enters the defrosting state, controlling the third switch module to be switched on, controlling the second switch module to be switched off, and controlling the working state of the electric heating element according to the pipe temperature of the air conditioning system.
Specifically, the air conditioning system judges whether defrosting is finished or not, if defrosting is finished, the original behavior of the user is returned, on one hand, the indoor unit main board controls the relay KM3 to be attracted, the relay KM2 is disconnected, and the air conditioning system judges whether the electric auxiliary heating device is turned on or not through the pipe temperature.
And step S220, if the defrosting is not finished, continuing to keep the second switch module to be switched off and the third switch module to be switched on.
Specifically, the air conditioning system judges whether defrosting is finished or not, if defrosting is not finished, the state that the air conditioning system does not enter a defrosting working condition is continuously maintained, so that the indoor unit keeps the original electric auxiliary heating working mode, namely the relay KM3 is closed, and the relay KM2 is disconnected.
In some embodiments, the specific process of controlling the operating state of the electric heating element according to the tube temperature of the air conditioning system in step S210 includes:
on one hand, if the tube temperature is higher than a third set temperature, the electric heating element is controlled to be turned off, and at the moment, the second switch module and the third switch module are both turned off.
On the other hand, if the tube temperature is less than or equal to a third set temperature, the third switch module is controlled to be switched on, the second switch module is controlled to be switched off after a second set time, and the electric heating element is controlled to be switched on under the condition that the first temperature limiter recovers the temperature.
Specifically, the third set temperature may be 48 ℃. If the temperature of the tube temperature is higher than 48 ℃, the electric auxiliary heating device is turned off, and the relay KM2 and the relay KM3 are both in an off state. If the temperature of the pipe temperature is less than or equal to 48 ℃, the time of the main board program of the indoor unit starts to be timed, the relay KM3 is controlled to be closed by the main board of the indoor unit after about 4-5 minutes, and the relay KM2 is disconnected, so that the electric auxiliary heating device is started.
The first temperature limiter with electric auxiliary heating is mainly considered to be higher than the disconnection temperature of the first temperature limiter due to the fact that the ambient temperature is high when the first temperature limiter is defrosted in 4-5 minutes, the first temperature limiter is disconnected, the air conditioning system is automatically switched to the original behavior of a user after defrosting is finished, the rotating speed of the fan is increased, and the temperature of the first temperature limiter is reduced. For example: and judging whether the temperature of a first temperature limiter of the electric auxiliary heating device is less than the recovery temperature or not, and if the temperature of the first temperature limiter is less than the recovery temperature, starting the electric auxiliary heating device. And if the temperature of the first temperature limiter is greater than or equal to the recovery temperature, waiting for the temperature of the first temperature limiter to be less than the recovery temperature.
Since the processing and functions implemented by the method of the present embodiment substantially correspond to the embodiments, principles and examples of the air conditioning system, reference may be made to the related descriptions in the foregoing embodiments without being detailed in the description of the present embodiment.
Through a large amount of tests verification, adopt the technical scheme of this embodiment, through when air conditioning system carries out steam defrosting, utilize the PTC electricity that has two temperature limiters to assist the heat device and have the air conditioning system controller of two relays, guarantee that electricity assists the heat and can normally work and satisfy the electrical safety requirement when air conditioning system switches different user modes, improve the security.
In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.
The above description is only an example of the present invention, and is not intended to limit the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (11)
1. The defrosting control device of the air conditioning system is characterized in that the air conditioning system comprises a heating module, a first switch module, a second switch module and a third switch module; the heating module comprises a temperature controller, an electric heating element and a thermal fuse; the temperature controller comprises a first temperature limiter and a second temperature limiter; the electric heating element is respectively connected to the first temperature limiter, the second temperature limiter and the thermal fuse link, the first temperature limiter is connected to the third switch module, the second temperature limiter is connected to the second switch module, and the thermal fuse link is connected to the first switch module;
the defrosting control device of the air conditioning system comprises: an acquisition unit and a control unit; wherein the content of the first and second substances,
the acquisition unit is configured to acquire an indoor ambient temperature or an outdoor ambient temperature of the air conditioning system;
the control unit is configured to determine whether the air conditioning system needs to enter defrosting according to the indoor environment temperature or the outdoor environment temperature; if the air conditioning system needs to enter defrosting, controlling the second switch module to be switched on, controlling the third switch module to be switched off, and controlling the defrosting process of the air conditioning system; and if the air conditioning system does not need to enter defrosting, controlling the second switch module to be switched off and controlling the third switch module to be switched on.
2. The defrosting control unit of an air conditioning system according to claim 1 wherein an off temperature of the first temperature limiter is lower than an off temperature of the second temperature limiter, and a recovery temperature of the first temperature limiter is lower than a recovery temperature of the second temperature limiter.
3. The defrosting control device of an air conditioning system according to claim 1 or 2, wherein the control unit determines whether the air conditioning system needs to enter defrosting according to the indoor ambient temperature or the outdoor ambient temperature, and includes:
and if the indoor environment temperature is higher than a first set temperature or the outdoor environment temperature is lower than a second set temperature, determining that the air conditioning system needs to enter defrosting.
4. The defrosting control device of an air conditioning system according to claim 1 or 2, wherein the control unit controls a defrosting process of the air conditioning system, including:
after the air conditioning system enters a first set time after defrosting, determining whether defrosting is finished or not;
if the defrosting is determined to be finished, controlling the working state of the air conditioning system to return to the heating state of the air conditioning system before the air conditioning system enters the defrosting state, controlling the third switch module to be switched on, controlling the second switch module to be switched off, and controlling the working state of the electric heating element according to the pipe temperature of the air conditioning system;
and if the defrosting is not finished, continuing to keep the second switch module to be switched off and the third switch module to be switched on.
5. The defrosting control device of an air conditioning system according to claim 4, wherein the control unit controls the operating state of the electric heating element according to a tube temperature of the air conditioning system, and includes:
if the tube temperature is higher than a third set temperature, controlling the electric heating element to be closed, and turning off the second switch module and the third switch module at the moment;
if the tube temperature is less than or equal to a third set temperature, controlling the third switch module to be switched on and the second switch module to be switched off after a second set time, and controlling the electric heating element to be switched on under the condition that the first temperature limiter recovers the temperature;
wherein, the condition that the first temperature limiter recovers the temperature comprises: judging whether the temperature of a first temperature limiter of the electric auxiliary heating device is lower than the recovery temperature or not, and if the temperature of the first temperature limiter is lower than the recovery temperature, starting the electric auxiliary heating device; and if the temperature of the first temperature limiter is greater than or equal to the recovery temperature, waiting for the temperature of the first temperature limiter to be less than the recovery temperature.
6. An air conditioning system, comprising: the defrosting control apparatus of an air conditioning system of any one of claims 1 to 5.
7. The defrosting control method of the air conditioning system is characterized in that the air conditioning system comprises a heating module, a first switch module, a second switch module and a third switch module; the heating module comprises a temperature controller, an electric heating element and a thermal fuse; the temperature controller comprises a first temperature limiter and a second temperature limiter; the electric heating element is respectively connected to the first temperature limiter, the second temperature limiter and the thermal fuse link, the first temperature limiter is connected to the third switch module, the second temperature limiter is connected to the second switch module, and the thermal fuse link is connected to the first switch module;
the defrosting control method of the air conditioning system comprises the following steps:
acquiring the indoor ambient temperature or the outdoor ambient temperature of the air conditioning system;
determining whether the air-conditioning system needs to enter defrosting according to the indoor environment temperature or the outdoor environment temperature; if the air conditioning system needs to enter defrosting, controlling the second switch module to be switched on, controlling the third switch module to be switched off, and controlling the defrosting process of the air conditioning system; and if the air conditioning system does not need to enter defrosting, controlling the second switch module to be switched off and controlling the third switch module to be switched on.
8. The defrosting control method of an air conditioning system of claim 7 wherein the off temperature of the first temperature limiter is lower than the off temperature of the second temperature limiter and the recovery temperature of the first temperature limiter is lower than the recovery temperature of the second temperature limiter.
9. The defrosting control method of an air conditioning system according to claim 7 or 8, wherein determining whether the air conditioning system needs to enter defrosting according to the indoor ambient temperature or the outdoor ambient temperature includes:
and if the indoor environment temperature is higher than a first set temperature or the outdoor environment temperature is lower than a second set temperature, determining that the air conditioning system needs to enter defrosting.
10. The defrosting control method of an air conditioning system according to claim 7 or 8, wherein controlling a defrosting process of the air conditioning system includes:
after the air conditioning system enters a first set time after defrosting, determining whether defrosting is finished or not;
if the defrosting is determined to be finished, controlling the working state of the air conditioning system to return to the heating state of the air conditioning system before the air conditioning system enters the defrosting state, controlling the third switch module to be switched on, controlling the second switch module to be switched off, and controlling the working state of the electric heating element according to the pipe temperature of the air conditioning system;
and if the defrosting is not finished, continuing to keep the second switch module to be switched off and the third switch module to be switched on.
11. The defrosting control method of an air conditioning system according to claim 10, wherein controlling the operating state of the electric heating element according to the tube temperature of the air conditioning system comprises:
if the tube temperature is higher than a third set temperature, controlling the electric heating element to be closed, and turning off the second switch module and the third switch module at the moment;
if the tube temperature is less than or equal to a third set temperature, controlling the third switch module to be switched on and the second switch module to be switched off after a second set time, and controlling the electric heating element to be switched on under the condition that the first temperature limiter recovers the temperature;
wherein, the condition that the first temperature limiter recovers the temperature comprises: judging whether the temperature of a first temperature limiter of the electric auxiliary heating device is lower than the recovery temperature or not, and if the temperature of the first temperature limiter is lower than the recovery temperature, starting the electric auxiliary heating device; and if the temperature of the first temperature limiter is greater than or equal to the recovery temperature, waiting for the temperature of the first temperature limiter to be less than the recovery temperature.
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Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5912236A (en) * | 1982-07-14 | 1984-01-21 | Hitachi Ltd | Changeover circuit for operation of air conditioner with electric heater |
| US5131455A (en) * | 1990-02-08 | 1992-07-21 | Sanyo Electric Co., Ltd. | Low power electrical fan motor and heater thermal protection circuit for air conditioner |
| JPH08121842A (en) * | 1994-10-19 | 1996-05-17 | Noritz Corp | Controlling method for prevention of freezing of hot water type air conditioner |
| JP2004205071A (en) * | 2002-12-24 | 2004-07-22 | Matsushita Electric Ind Co Ltd | Air conditioner |
| JP2006336923A (en) * | 2005-06-01 | 2006-12-14 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN201004191Y (en) * | 2007-01-06 | 2008-01-09 | 珠海格力电器股份有限公司 | Auxiliary heat circuit for air conditioner |
| CN103512146A (en) * | 2012-06-21 | 2014-01-15 | 珠海格力电器股份有限公司 | Air conditioner control method and device |
| CN103528134A (en) * | 2013-09-27 | 2014-01-22 | 广东美的制冷设备有限公司 | Air conditioner and heating control method thereof |
| CN105135533A (en) * | 2015-10-09 | 2015-12-09 | 珠海格力电器股份有限公司 | Air conditioner and control method thereof |
| CN205579863U (en) * | 2016-02-26 | 2016-09-14 | 珠海格力电器股份有限公司 | Air conditioner heating control circuit |
| CN106766007A (en) * | 2017-02-21 | 2017-05-31 | 青岛海尔空调器有限总公司 | A kind of air-conditioner and the method for improving air-conditioner defrosting process comfort level |
| CN107606725A (en) * | 2017-09-11 | 2018-01-19 | 广东美的制冷设备有限公司 | Accumulation of heat defrosting control method, control device and air conditioner |
| CN108131731A (en) * | 2017-12-26 | 2018-06-08 | 青岛海信日立空调系统有限公司 | A kind of embedded type air conditioner and its auxiliary electrical heater control method |
| CN108361933A (en) * | 2018-02-28 | 2018-08-03 | 四川长虹空调有限公司 | A kind of idle call segmented electric heater unit and its heating means |
| CN110410857A (en) * | 2019-06-19 | 2019-11-05 | 宁波奥克斯电气股份有限公司 | A kind of air conditioner and its defrosting control method |
| CN210153958U (en) * | 2019-06-28 | 2020-03-17 | 宁波奥克斯电气股份有限公司 | Electric heating device for air conditioner and air conditioner indoor unit |
| CN210399216U (en) * | 2019-06-12 | 2020-04-24 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2779779Y (en) * | 2005-04-06 | 2006-05-10 | 珠海格力电器股份有限公司 | Protection control circuit of heating device |
| CN201407746Y (en) * | 2009-04-07 | 2010-02-17 | 珠海格力电器股份有限公司 | Air conditioner with electric heater protection circuit |
| CN102829529B (en) * | 2012-09-24 | 2015-06-10 | 宁波奥克斯空调有限公司 | Control device and control method for air conditioner auxiliary electrical heating |
| CN109073257B (en) * | 2016-04-07 | 2024-02-02 | 开利公司 | Air-cooled refrigerator liquid circulation external member |
| CN108180595B (en) * | 2017-11-23 | 2019-10-01 | 珠海格力电器股份有限公司 | A kind of electric heater guard method, device and air-conditioning |
-
2020
- 2020-10-23 CN CN202011148187.1A patent/CN112303818B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5912236A (en) * | 1982-07-14 | 1984-01-21 | Hitachi Ltd | Changeover circuit for operation of air conditioner with electric heater |
| US5131455A (en) * | 1990-02-08 | 1992-07-21 | Sanyo Electric Co., Ltd. | Low power electrical fan motor and heater thermal protection circuit for air conditioner |
| JPH08121842A (en) * | 1994-10-19 | 1996-05-17 | Noritz Corp | Controlling method for prevention of freezing of hot water type air conditioner |
| JP2004205071A (en) * | 2002-12-24 | 2004-07-22 | Matsushita Electric Ind Co Ltd | Air conditioner |
| JP2006336923A (en) * | 2005-06-01 | 2006-12-14 | Matsushita Electric Ind Co Ltd | Air conditioner |
| CN201004191Y (en) * | 2007-01-06 | 2008-01-09 | 珠海格力电器股份有限公司 | Auxiliary heat circuit for air conditioner |
| CN103512146A (en) * | 2012-06-21 | 2014-01-15 | 珠海格力电器股份有限公司 | Air conditioner control method and device |
| CN103528134A (en) * | 2013-09-27 | 2014-01-22 | 广东美的制冷设备有限公司 | Air conditioner and heating control method thereof |
| CN105135533A (en) * | 2015-10-09 | 2015-12-09 | 珠海格力电器股份有限公司 | Air conditioner and control method thereof |
| CN205579863U (en) * | 2016-02-26 | 2016-09-14 | 珠海格力电器股份有限公司 | Air conditioner heating control circuit |
| CN106766007A (en) * | 2017-02-21 | 2017-05-31 | 青岛海尔空调器有限总公司 | A kind of air-conditioner and the method for improving air-conditioner defrosting process comfort level |
| CN107606725A (en) * | 2017-09-11 | 2018-01-19 | 广东美的制冷设备有限公司 | Accumulation of heat defrosting control method, control device and air conditioner |
| CN108131731A (en) * | 2017-12-26 | 2018-06-08 | 青岛海信日立空调系统有限公司 | A kind of embedded type air conditioner and its auxiliary electrical heater control method |
| CN108361933A (en) * | 2018-02-28 | 2018-08-03 | 四川长虹空调有限公司 | A kind of idle call segmented electric heater unit and its heating means |
| CN210399216U (en) * | 2019-06-12 | 2020-04-24 | 青岛海尔空调器有限总公司 | Indoor unit of air conditioner |
| CN110410857A (en) * | 2019-06-19 | 2019-11-05 | 宁波奥克斯电气股份有限公司 | A kind of air conditioner and its defrosting control method |
| CN210153958U (en) * | 2019-06-28 | 2020-03-17 | 宁波奥克斯电气股份有限公司 | Electric heating device for air conditioner and air conditioner indoor unit |
Non-Patent Citations (1)
| Title |
|---|
| 电冰箱电子温控器原理及其应用;夏清川;《武汉交通科技大学学报》;20000425(第02期);第173-175页 * |
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| CN112303818A (en) | 2021-02-02 |
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