CN110274388B - Warm air blower and control method thereof - Google Patents
Warm air blower and control method thereof Download PDFInfo
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- CN110274388B CN110274388B CN201910509492.XA CN201910509492A CN110274388B CN 110274388 B CN110274388 B CN 110274388B CN 201910509492 A CN201910509492 A CN 201910509492A CN 110274388 B CN110274388 B CN 110274388B
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- air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
- F24H3/0411—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between for domestic or space-heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
Abstract
The invention discloses a fan heater, which comprises an indoor unit and an outdoor unit, wherein the indoor unit comprises an indoor unit controller, an upper air outlet and a lower air outlet, a plurality of first left-right air swinging air guide strips and first up-down air swinging air guide strips are installed in the upper air outlet, a plurality of second left-right air swinging air guide strips and second up-down air swinging air guide strips are installed in the lower air outlet, the first left-right air swinging air guide strips and the first up-down air swinging air guide strips are respectively driven by a first left-right air swinging stepping motor and a first up-down air swinging stepping motor, the second left-right air swinging air guide strips and the second up-down air swinging air guide strips are respectively driven by a second left-right air swinging stepping motor and a second up-down air swinging stepping motor, and the first left-right air swinging stepping motor, the first up-down air swinging stepping motor, the second left-right air swinging air stepping motor and the second up-down air. The invention is used for solving the problem of hot air direct blowing in a heating mode and the problem of frequent frequency reduction or shutdown of a down-conversion compressor in a cooling or dehumidifying mode.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a fan heater and a control method thereof.
Background
In the prior art, the air-conditioning air heater mainly uses a high air-out temperature as a main development direction in a heating mode, and the air-out temperature during heating is higher than that during heating of a conventional air conditioner. In addition, when the air conditioner is heating, humidity is less in the hot air, can be very dry, when the dry air of high temperature directly blows to people's face, can arouse dry skin, causes the discomfort, and user experience effect is suitable for it is counter.
The indoor unit of the air-conditioning hot air blower is generally not too high in installation height due to special use conditions, so that in terms of functions, under a refrigeration or dehumidification mode, only the upper air port is opened to meet the requirements of cooling or dehumidifying the indoor environment. However, due to the special configuration of the air heater, the air outlet temperature of the common air conditioner is usually lower in refrigeration or dehumidification, so that the frosting chance of the evaporator of the indoor unit is higher, and after the evaporation temperature is lower to a certain temperature, frequent frequency reduction or shutdown is caused to serve as protection. Frequent frequency reduction or shutdown is carried out, so that on one hand, the indoor temperature fluctuation is large; on the other hand, frequent starting results in a shortened service life of the compressor. In order to improve the above situation, the present invention is proposed and aims to provide a solution by which the evaporation temperature is raised and the fluctuation of the indoor ambient temperature is reduced when the indoor evaporation temperature is lowered, and at the same time, the service life of the compressor is prolonged as much as possible.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a fan heater and a control method thereof, wherein the control method is used for solving the problems of direct blowing of hot air in a heating mode and frequent frequency reduction or shutdown of a down-conversion compressor in a cooling or dehumidifying mode.
In order to achieve the purpose, the invention adopts the technical scheme that: a warm air blower comprises an indoor unit and an outdoor unit, wherein the indoor unit comprises an indoor unit controller, an upper air outlet and a lower air outlet, a plurality of first left-right air swinging guide strips and first up-down air swinging guide strips are installed in the upper air outlet, a plurality of second left-right air swinging guide strips and second up-down air swinging guide strips are installed in the lower air outlet, the first left-right air swinging guide strips and the first up-down air swinging guide strips are respectively driven by a first left-right air swinging stepping motor and a first up-down air swinging stepping motor, the second left-right air swinging guide strips and the second up-down air swinging guide strips are respectively driven by a second left-right air swinging stepping motor and a second up-down air swinging stepping motor, the first left-right air swinging stepping motor, the first up-down air swinging stepping motor, the second left-right air swinging stepping motor and the second up-down air swinging stepping motor are all controlled by an indoor unit controller, and the indoor unit controller is controlled by a remote controller.
A control method of a warm air blower is characterized in that a remote controller is provided with a direct blowing prevention function key, and the direct blowing prevention function key is used for completing one operation within set time.
When the anti-blow-through function key on the remote controller is started, the indoor unit controller receives an instruction and controls the first up-down swinging air stepping motor at the air outlet at the upper part of the indoor unit to be started, the first up-down swinging air guide strip at the air outlet at the upper part is opened upwards by a preset opening angle, meanwhile, the indoor unit controller controls a second up-down air swinging stepping motor at the lower air outlet to open downwards by a preset opening angle, if it is determined that there is no more blow-through air-conditioned air, which does not require the next operation, the blow-through prevention function is considered to be achieved, if the lower air outlet still blows the person directly, the indoor unit controller receives the instruction to control the second left and right air swinging stepping motor of the lower air outlet to close the second left and right air swinging guide strip by pressing the direct blowing prevention function key on the remote controller once again, meanwhile, the indoor unit controller controls a second up-down air swinging stepping motor at the lower air outlet to close a second up-down air swinging air guide strip;
when the remote controller is used for switching functions, the direct blowing prevention function is automatically quitted, and all the air swinging and guiding strips are controlled according to the normal function;
when the remote controller is used for finishing the third time of setting the direct-blow prevention function key within the preset time, the direct-blow prevention function is automatically quitted, and all the air swinging and guiding strips are controlled according to the normal function.
The utility model provides a warm air blower, indoor set in be provided with fan and evaporating temperature sensor, evaporating temperature sensor real-time detection temperature and feedback to indoor set controller, the off-premises station in install off-premises station controller and inverter compressor, the off-premises station controller receives evaporating temperature sensor signal and control inverter compressor, the relation of indoor set preset temperature is, Tf0 > Tf1 > Tf2 > Tf3, Tf11 > Tf21 > Tf 31.
A control method of a warm air blower is characterized in that a refrigeration key or a dehumidification key is arranged on a remote controller, an evaporation temperature sensor detects the temperature T2 in real time, when the temperature T2 reaches a preset temperature value Tf0, a controller controls all stepping motors of an indoor unit to be started and corresponding air swing and guide strips to be started according to a preset angle, and the frequency of a compressor runs according to a target frequency H0.
When the temperature of T2 reaches a preset temperature value Tf1, the controller controls a first up-and-down swinging air guide strip of an air outlet at the upper part of the indoor unit to open a preset opening angle theta 1, controls a first left-and-right swinging air guide strip of the air outlet at the upper part of the indoor unit to open a preset opening angle theta 2, controls a second up-and-down swinging air guide strip of the air outlet at the lower part of the indoor unit to adjust a preset angle theta 3; the indoor unit controller feeds the temperature signal back to the outdoor unit controller, and the outdoor unit controller controls the frequency of the variable frequency compressor not to rise any more, but only to keep or fall until the frequency of the variable frequency compressor is reduced to a required minimum preset value H; when the temperature T2 reaches the preset temperature value Tf11, the frequency limit is exited.
When the frequency of the variable frequency compressor is reduced to a preset value H and the temperature T2 reaches a preset temperature value Tf2, the indoor unit controller controls the second up-down swinging air stepping motor and controls the second up-down swinging air guide strip to open a preset angle theta 4; when the temperature of T2 reaches a preset temperature value Tf21, the indoor unit controller controls the second up-down swinging air stepping motor to close the second up-down swinging air guide strip; when the temperature T2 reaches the preset temperature value Tf11, the frequency limit is exited.
When the temperature T2 reaches a preset temperature value Tf3, the indoor unit controller controls a fan of the indoor unit to lift the 1 st gear to the maximum rotating speed S, and the maximum rotating speed S is higher than the maximum set rotating speed of the indoor unit; when the temperature of T2 reaches a preset temperature value Tf31, the fan of the indoor unit is restored to a rotation speed gear before protection; when the temperature of T2 reaches a preset temperature value Tf21, the indoor unit controller controls the second up-down swinging air stepping motor to close the second up-down swinging air guide strip; when the temperature T2 reaches the preset temperature value Tf11, the frequency limit is exited.
Compared with the prior art, the invention has the beneficial effects that: the invention is used for solving the problem of hot air direct blowing in a heating mode and the problem of frequent frequency reduction or shutdown of a down-conversion compressor in a cooling or dehumidifying mode.
Drawings
FIG. 1 is a first block diagram of the present invention;
FIG. 2 is a block diagram of the present invention;
FIG. 3 is a schematic view of the blow-through prevention control of the present invention;
FIG. 4 is a schematic diagram of a cooling, dehumidifying and start-up control of a fan heater according to the present invention;
FIG. 5 is a flow chart of the cold wind prevention control of the present invention;
fig. 6 is a flowchart of the cold air exit prevention control according to the present invention.
The labels in the figures are: 1. the first left-right swinging wind guide strip; 2. the first wind guide strip swings up and down; 3. a second wind guiding strip swings up and down; 4. and the second wind guide strip swings left and right.
Detailed Description
The following detailed description is provided in conjunction with the embodiments and with reference to the accompanying drawings in order to provide a further explanation of the technical features and advantages of the present invention.
As shown in fig. 1-3, the fan heater of the present invention comprises an indoor unit and an outdoor unit, wherein the indoor unit comprises an indoor unit controller, an upper air outlet and a lower air outlet, a plurality of first left-right air-swinging air guide strips 1 and first up-down air-swinging air guide strips 2 are installed in the upper air outlet, a plurality of second left-right air-swinging air guide strips 4 and second up-down air-swinging air guide strips 3 are installed in the lower air outlet, the first left-right air-swinging air guide strips 1 and the first up-down air-swinging air guide strips 2 are respectively driven by a first left-right air-swinging stepping motor and a first up-down air-swinging stepping motor, the second left-right air-swinging air guide strips 4 and the second up-down air-swinging air guide strips 3 are respectively driven by a second left-right air-swinging stepping motor and a second up-down air-swinging stepping motor, the first left-right air-swinging stepping motor, the first up-down air-swinging air stepping motor, the indoor unit controller is controlled by a remote controller.
A control method of a warm air blower is characterized in that a remote controller is provided with a direct blowing prevention function key, the direct blowing prevention function key is used for completing one operation within set time, the set time is in seconds, and a proper set numerical value is selected according to the use habit of a user. When the anti-blow-through function key on the remote controller is started, the indoor unit controller receives an instruction and controls the first up-down swinging air guide strip 2 at the upper air outlet of the indoor unit to be started, and the first up-down swinging air guide strip 2 at the upper air outlet is opened upwards by a preset opening angle, meanwhile, the indoor unit controller controls a second up-down air swinging stepping motor at the lower air outlet to open downwards by a preset opening angle, if it is determined that there is no more blow-through air-conditioned air, which does not require the next operation, the blow-through prevention function is considered to be achieved, if the lower air outlet still blows the person directly, the indoor unit controller receives the instruction to control the second left and right air swinging stepping motor of the lower air outlet to close the second left and right air swinging air guide strip 4 by pressing the direct blowing prevention function key on the remote controller once again, meanwhile, the indoor unit controller controls a second up-down air swinging stepping motor at the lower air outlet to close a second up-down air swinging air guide strip 3;
when the remote controller is used for switching functions, the direct blowing prevention function is automatically quitted, and all the air swinging and guiding strips are controlled according to the normal function;
when the remote controller is used for finishing the third time of setting the direct-blowing prevention function key within the preset time, the direct-blowing prevention function is automatically quitted, all the air swinging and guiding strips are controlled according to the normal function, and the direct-blowing prevention function is quickly quitted under the condition that a wrong key is pressed.
As shown in fig. 1-6, a warm air blower, indoor set in be provided with fan and evaporating temperature sensor, evaporating temperature sensor real-time detection temperature and feedback to indoor set controller, outdoor set in install off-premises station controller and inverter compressor, the off-premises station controller receives evaporating temperature sensor signal and control inverter compressor, the relation of indoor set preset temperature is, Tf0 > Tf1 > Tf2 > Tf3, Tf11 > Tf21 > Tf 31.
A control method of a warm air blower is characterized in that a refrigeration key or a dehumidification key is arranged on a remote controller, an evaporation temperature sensor detects the temperature T2 in real time, when the temperature T2 reaches a preset temperature value Tf0, a controller controls all stepping motors of an indoor unit to be started and corresponding air swing and guide strips to be started according to a preset angle, and the frequency of a compressor runs according to a target frequency H0.
When the temperature of T2 reaches a preset temperature value Tf1, the controller controls a first up-and-down air swinging stepping motor at an air outlet at the upper part of the indoor unit to open a first up-and-down air swinging guide strip 2 by a preset opening angle theta 1, controls a first left-and-right air swinging stepping motor at the air outlet at the upper part of the indoor unit to open the first left-and-right air swinging guide strip 1 by a preset opening angle theta 2, controls a second up-and-down air swinging stepping motor at the air outlet at the lower part of the indoor unit to adjust a second up-and-down air swinging guide strip 3 to a preset angle theta 3; the indoor unit controller feeds the temperature signal back to the outdoor unit controller, and the outdoor unit controller controls the frequency of the variable frequency compressor not to rise any more, but only to keep or fall until the frequency of the variable frequency compressor is reduced to a required minimum preset value H; when the temperature T2 reaches the preset temperature value Tf11, the frequency limit is exited.
When the frequency of the variable frequency compressor is reduced to a preset value H and the temperature T2 reaches a preset temperature value Tf2, the indoor unit controller controls the second vertical swinging air stepping motor to control the second vertical swinging air guide strip 3 to open a preset angle theta 4; when the temperature of T2 reaches a preset temperature value Tf21, the indoor unit controller controls the second up-down swinging air stepping motor to close the second up-down swinging air guide strip 3; when the temperature T2 reaches the preset temperature value Tf11, the frequency limit is exited.
When the temperature T2 reaches a preset temperature value Tf3, the indoor unit controller controls a fan of the indoor unit to lift the 1 st gear to the maximum rotating speed S, and the maximum rotating speed S is higher than the maximum set rotating speed of the indoor unit; when the temperature of T2 reaches a preset temperature value Tf31, the fan of the indoor unit is restored to a rotation speed gear before protection; when the temperature of T2 reaches a preset temperature value Tf21, the indoor unit controller controls the second up-down swinging air stepping motor to close the second up-down swinging air guide strip 3; when the temperature T2 reaches the preset temperature value Tf11, the frequency limit is exited.
In the device, the indoor unit, the outdoor unit, the sensor, the variable frequency compressor, the fan, the remote controller and other parts are the prior art or materials, and the technical personnel can directly purchase or order from the market according to the required product model and specification.
The electrical components are electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device for controlling a computer and the like.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
The present invention is described in detail and completely by the technical solutions in the above embodiments, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. 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.
Claims (6)
1. A warm air blower comprises an indoor unit and an outdoor unit, and is characterized in that the indoor unit comprises an indoor unit controller, an upper air outlet and a lower air outlet, a plurality of first left-right air swinging air guide strips and first up-down air swinging air guide strips are installed in the upper air outlet, a plurality of second left-right air swinging air guide strips and second up-down air swinging air guide strips are installed in the lower air outlet, the first left-right air swinging air guide strips and the first up-down air swinging air guide strips are respectively driven by a first left-right air swinging stepping motor and a first up-down air swinging stepping motor, the second left-right air swinging air guide strips and the second up-down air swinging air guide strips are respectively driven by a second left-right air swinging stepping motor and a second up-down air swinging stepping motor, the first left-right air swinging stepping motor, the first up-down air swinging stepping motor, the second left-right air swinging stepping motor and the second up-down air swinging stepping motor are respectively, the indoor unit controller is controlled by a remote controller, the remote controller is provided with a direct blowing prevention function key, and the direct blowing prevention function key is used for completing one-time operation within set time;
when the anti-blow-through function key on the remote controller is started, the indoor unit controller receives an instruction and controls the first up-down swinging air stepping motor at the air outlet at the upper part of the indoor unit to be started, the first up-down swinging air guide strip at the air outlet at the upper part is opened upwards by a preset opening angle, meanwhile, the indoor unit controller controls a second up-down air swinging stepping motor at the lower air outlet to open downwards by a preset opening angle, if it is determined that there is no more blow-through air-conditioned air, which does not require the next operation, the blow-through prevention function is considered to be achieved, if the lower air outlet still blows the person directly, the indoor unit controller receives the instruction to control the second left and right air swinging stepping motor of the lower air outlet to close the second left and right air swinging guide strip by pressing the direct blowing prevention function key on the remote controller once again, meanwhile, the indoor unit controller controls a second up-down air swinging stepping motor at the lower air outlet to close a second up-down air swinging air guide strip;
when the remote controller is used for switching functions, the direct blowing prevention function is automatically quitted, and all the air swinging and guiding strips are controlled according to the normal function;
when the remote controller is used for finishing the third time of setting the direct-blow prevention function key within the preset time, the direct-blow prevention function is automatically quitted, and all the air swinging and guiding strips are controlled according to the normal function.
2. The warm-air drier according to claim 1, wherein the indoor unit is provided with a fan and an evaporation temperature sensor, the evaporation temperature sensor detects the temperature in real time and feeds the temperature back to the indoor unit controller, the outdoor unit is provided with an outdoor unit controller and a variable frequency compressor, the outdoor unit controller receives an evaporation temperature sensor signal and controls the variable frequency compressor, and the preset temperature relationship of the indoor unit is Tf0 & gt Tf1 & gt Tf2 & gt Tf3, Tf11 & gt Tf21 & gt Tf 31.
3. A control method of a warm air blower according to claim 2, characterized in that a refrigeration button or a dehumidification button is provided on the remote controller, the evaporating temperature sensor detects the temperature as T2 in real time, when the temperature of T2 reaches a preset temperature value Tf0, the controller controls all stepping motors of the indoor unit to start and turn on corresponding air guide bars according to a preset angle, and the frequency of the compressor operates according to a target frequency H0.
4. The control method of the warm-air drier as claimed in claim 3, wherein when the temperature T2 reaches the preset temperature value Tf1, the controller controls the first up-and-down swinging stepping motor at the upper air outlet of the indoor unit to open the first up-and-down swinging air guide strip by the preset opening angle θ 1, and simultaneously controls the first left-and-right swinging stepping motor at the upper air outlet of the indoor unit to open the first left-and-right swinging air guide strip by the preset opening angle θ 2, and further, the controller controls the second up-and-down swinging stepping motor at the lower air outlet of the indoor unit to adjust the second up-and-down swinging air guide strip by the preset angle θ 3; the indoor unit controller feeds the temperature signal back to the outdoor unit controller, and the outdoor unit controller controls the frequency of the variable frequency compressor not to rise any more, but only to keep or fall until the frequency of the variable frequency compressor is reduced to a required minimum preset value H; when the temperature T2 reaches the preset temperature value Tf11, the frequency limit is exited.
5. The control method of the warm-air drier according to claim 4, wherein when the temperature T2 reaches a preset temperature value Tf2 after the frequency of the inverter compressor is reduced to a preset value H, the indoor unit controller controls the second upward and downward swinging stepping motor and controls the second upward and downward swinging air guide strip to open a preset angle θ 4; when the temperature of T2 reaches a preset temperature value Tf21, the indoor unit controller controls the second up-down swinging air stepping motor to close the second up-down swinging air guide strip; when the temperature T2 reaches the preset temperature value Tf11, the frequency limit is exited.
6. The control method of the warm-air drier according to claim 5, wherein when the temperature T2 reaches the preset temperature value Tf3, the indoor unit controller controls the fan of the indoor unit to raise the speed by 1 to the maximum rotation speed S, and the maximum rotation speed S is higher than the maximum set rotation speed of the indoor unit; when the temperature of T2 reaches a preset temperature value Tf31, the fan of the indoor unit is restored to a rotation speed gear before protection; when the temperature of T2 reaches a preset temperature value Tf21, the indoor unit controller controls the second up-down swinging air stepping motor to close the second up-down swinging air guide strip; when the temperature T2 reaches the preset temperature value Tf11, the frequency limit is exited.
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| CN201910509492.XA CN110274388B (en) | 2019-06-13 | 2019-06-13 | Warm air blower and control method thereof |
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| CN113418234B (en) * | 2021-06-30 | 2023-01-24 | 广东美的制冷设备有限公司 | Floor type air conditioner, control method thereof and computer readable storage medium |
| CN114427733B (en) * | 2022-01-24 | 2023-06-13 | 珠海格力电器股份有限公司 | Control method and control device of air deflector and air conditioner |
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