CN110857819A - Heating ventilation fan and control method thereof - Google Patents
Heating ventilation fan and control method thereof Download PDFInfo
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- CN110857819A CN110857819A CN201810979744.0A CN201810979744A CN110857819A CN 110857819 A CN110857819 A CN 110857819A CN 201810979744 A CN201810979744 A CN 201810979744A CN 110857819 A CN110857819 A CN 110857819A
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- heating
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- wind
- temperature
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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
- F24H3/022—Air heaters with forced circulation using electric energy supply
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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
- F24H9/2071—Arrangement or mounting of control or safety devices for air heaters using electrical energy supply
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a heating ventilator and a control method thereof, wherein the heating ventilator comprises: a temperature detecting part for detecting the space temperature Y of the indoor space, a wind generating part for blowing wind, a heating part for heating the wind generated by the wind generating part, a heating control part for controlling the heating part, a wind speed control part for controlling the wind speed of the wind generated by the wind generating part, a storage part for storing the target temperature X and the space temperature Y detected by the temperature detecting part, a first stage and a second stage after the first stage, according to the target temperature X and the space temperature Y detected by the temperature detection part, the heating control part and/or the wind speed control part are/is automatically matched with the corresponding heating quantity and/or wind speed, in the second stage, and controlling the heating quantity and/or the wind speed by the heating control part and/or the wind speed control part according to the comparison result of the difference value delta T between the target temperature X and the space temperature Y and the threshold value.
Description
Technical Field
The invention relates to a heating ventilator and a control method thereof.
Background
In the heating ventilator in the prior art, the running state of the heating ventilator is controlled only according to the difference value between the detected space temperature and the target temperature set by the user. When the difference between the target temperature set by the user and the space temperature is large, even if the target temperature set by the user is low, in order to quickly make the space temperature reach the target temperature, the heating ventilator can still control the air supply part and/or the heating part of the heating ventilator to operate at high power.
Disclosure of Invention
Technical problem to be solved
The heating ventilator of the prior art ignores the comfort of the client only in order to quickly reach the target temperature of the space temperature, so that the temperature of the air blown into the room may be too high, and the comfort of the client may be reduced.
As described above, the heating ventilation fan of the related art has a problem that the temperature of the air blown into the room is too high, which reduces the comfort of the user.
In order to solve the problems, the invention provides a heating ventilation fan and a control method thereof, and aims to improve the comfort of customers.
(II) technical scheme
In order to achieve the above object, the present invention provides a heating ventilator, comprising: a temperature detecting part for detecting the space temperature Y of the indoor space, a wind generating part for blowing wind, a heating part for heating the wind generated by the wind generating part, a heating control part for controlling the heating part, a wind speed control part for controlling the wind speed of the wind generated by the wind generating part, a storage part for storing the target temperature X and the space temperature Y detected by the temperature detecting part, a first stage and a second stage after the first stage, according to the target temperature X and the space temperature Y detected by the temperature detection part, the heating control part and/or the wind speed control part are/is automatically matched with the corresponding heating quantity and/or wind speed, in the second stage, and controlling the heating quantity and/or the wind speed by the heating control part and/or the wind speed control part according to the comparison result of the difference value delta T between the target temperature X and the space temperature Y and the threshold value.
In some embodiments of the present invention, the heating part includes a plurality of heaters, the heating control part controls the heating amount of the heating part by controlling respective ON/OFF states of the plurality of heaters, the wind generating part includes a motor, the wind speed control part changes a wind speed of wind generated by the wind generating part by changing a rotation speed of the motor, and any combination of the heating amount of the heating part and/or the wind speed of the wind generating part forms a plurality of stages that control a temperature of the wind generated by the wind generating part.
In some embodiments of the present invention, a table of a shift position determined by the target temperature X and the space temperature Y is stored in the storage unit, and in the first stage, the heating control unit and/or the wind speed control unit controls the temperature of the wind generated by the wind generation unit according to the shift position of the table.
In some embodiments of the present invention, the plurality of gears are different and are ordered according to the temperature of the wind generated by the wind generating portion.
In some embodiments of the invention, the gears comprise: the maximum gear position in the plurality of gear positions that maximizes the temperature of the wind generated by the wind generating unit, and the minimum gear position in the plurality of gear positions that minimizes the temperature of the wind generated by the wind generating unit.
In some embodiments of the invention, the threshold comprises: the device comprises a first threshold and a second threshold, wherein the first threshold is less than the second threshold.
In some embodiments of the present invention, during the second phase, when the difference Δ T is less than or equal to the first threshold, the gear is shifted down to a lower gear than the current gear, when the difference Δ T is greater than the first threshold and is less than or equal to the second threshold, the current gear is maintained, and when the difference Δ T is greater than the second threshold, the gear is shifted up to a higher gear than the current gear.
In some embodiments of the present invention, during the second phase, when the state where the difference Δ T is greater than the first threshold and is equal to or less than the second threshold is changed to the state where the difference Δ T is greater than the second threshold, the shift stage is maintained, and when the state where the difference Δ T is greater than the first threshold and is equal to or less than the second threshold is changed to the state where the difference Δ T is equal to or less than the first threshold, the shift stage is maintained.
In some embodiments of the invention, the threshold comprises: the gear shifting method comprises a third threshold value and a fourth threshold value, wherein the third threshold value is smaller than the first threshold value and smaller than the second threshold value and smaller than the fourth threshold value, in the second stage, when the difference value delta T is larger than the third threshold value and smaller than or equal to the first threshold value, the gear is shifted down, when the difference value delta T is larger than the first threshold value and smaller than or equal to the second threshold value, the current gear is kept unchanged, and when the difference value delta T is larger than the second threshold value and smaller than or equal to the fourth threshold value, the gear is shifted up.
In some embodiments of the present invention, during the second phase, the highest gear is operated when the difference Δ T is greater than the fourth threshold, and the lowest gear is operated when the difference Δ T is equal to or less than the third threshold.
In some embodiments of the invention, the threshold further comprises: and a fifth threshold value, wherein the first stage further comprises a matching stage and a judging stage after the matching stage, the matching stage is that the heating control part and/or the wind speed control part automatically match the corresponding heating quantity and/or the corresponding wind speed according to the target temperature X and the space temperature Y, and the judging stage is that when the heating ventilator enters the second stage is judged according to a comparison result of the difference value delta T and the fifth threshold value.
In some embodiments of the invention, the heating ventilator enters the second phase from the first phase when the difference Δ T is equal to a fifth threshold.
In some embodiments of the invention, the heating ventilator enters the second phase from the first phase at time T1 in the case where the difference Δ T is always less than the fifth threshold at time T1.
In some embodiments of the present invention, the wind generating portion stops after the heater stops operating and after the wind generating portion continues to operate for a time T2.
The invention also provides a control method of the heating ventilator, and the heating ventilator comprises the following steps: a temperature detecting section for detecting a space temperature Y of an indoor space, a wind generating section for blowing wind, a heating section for heating the wind generated by the wind generating section, a heating control section for controlling the heating section, a wind speed control section for controlling a wind speed of the wind generated by the wind generating section, a storage section for storing a target temperature X and the space temperature Y detected by the temperature detecting section, the control method comprising the steps of: starting the heating part and the wind generating part; the temperature detection unit starts detecting the space temperature Y of the indoor space, and step S201: based on the target temperature X and the space temperature Y detected by the temperature detection unit, the heating control unit and/or the wind speed control unit automatically match the corresponding heating amount and/or wind speed in the first matching stage, and step S202: according to the comparison result between the difference Δ T and the threshold, it is determined when the heating and ventilating fan enters the second stage, and step S203: after the first stage is finished, according to the comparison result of the difference value delta T between the target temperature X and the space temperature Y and the threshold value, the heating amount and/or the wind speed are/is controlled by the heating control part and/or the wind speed control part in the second stage; after the heater stops operating, the wind generating unit stops operating after the wind generating unit continues operating for time T2.
(III) advantageous effects
The temperature of the air blown out by the air generating part is controlled by the heating and ventilating fan to be divided into two control stages, so that the temperature of the air blown out to the room is prevented from being too high, and the comfort of customers is improved.
Drawings
Fig. 1 is an external view of a heating and ventilating fan according to a first embodiment of the present invention.
Fig. 2 is a schematic structural view of a heating ventilator according to a first embodiment of the present invention.
Fig. 3 is a working process diagram of the heating and ventilating fan according to the first embodiment of the present invention.
Fig. 4 is a flowchart of a heating and ventilating fan control method according to a second embodiment of the present invention.
[ notation ] to show
1-heating ventilation fan;
11-a wind generating section; 111-air inlet; 112-air outlet; 113-a wind guide part;
12-a temperature detection section; 13-a control section; 14-a heating section; 15-frame.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
(first embodiment)
The first embodiment of the invention provides a heating ventilator 1, and the heating ventilator 1 can be a heating ventilator, for example. As shown in fig. 1 and 2, the heating and ventilating fan 1 includes: a frame 15, a wind generating section 11, a heating section 14, a temperature detecting section 12, and a control section 13.
The frame 15 forms the outline of the heating and ventilating fan 1, and is in a hollow cuboid shape, and has an air inlet 111 and an air outlet 112. The air inlet 111 is provided on the indoor side and is an opening for sucking indoor air into the frame 15. For example, when the heating and ventilating fan 1 is installed on the ceiling, the air inlet 111 is installed on the bottom surface of the heating and ventilating fan 1. The outlet 112 is provided with an air guide portion 113 that changes the direction of the wind generated by the wind generating portion.
The wind generating unit 11 is disposed in the frame 15, and when the heating and ventilating fan 1 is started, the wind generating unit 11 sucks air in the frame 15 to generate wind. The wind generating unit 11 includes: suction inlet, motor, fan blades and snail shell.
The suction port is provided in the snail shell and is an opening provided to suck air in the frame 15 into the snail shell. The motor can drive the rotating shaft to rotate after being electrified. The fan blades are connected to a rotating shaft of the motor, and wind is generated by rotation of the rotating shaft of the motor. The fan blade and the motor are arranged in the snail shell.
The heating unit 14 is provided in the frame 15 and located downstream of the wind generating unit 11, and increases the temperature of the air passing through the wind generating unit 11. The heating section 14 includes: a plurality of heaters. In this embodiment, a group of heaters with 3 ON/OFF states is formed to form a plurality of heater combinations.
The temperature detection unit 12 is provided upstream of the intake port of the wind generation unit 11 and detects the space temperature Y of the indoor space. The temperature detector 12 of the present embodiment is a temperature detector.
The control unit 13 is disposed in the frame 15 and is used for controlling the operation of the whole heating and ventilating fan 1. The control unit 13 includes: a heating control unit, an air speed control unit, and a storage unit.
And a heating control unit electrically connected to the heating unit 14 and configured to control a state of the heater by sending a signal to change a heating amount of the heating unit 14. Controlling the state of the heater refers to controlling switching between ON/OFF states of the heater, or changing the power of the heater itself.
The wind speed control part is electrically connected with the motor, and drives the fan blades to rotate by sending signals to control the rotating speed of the motor, so that the wind speed of the wind generated by the wind generation part 11 is changed.
And the storage part is a memory for storing the related data of the heating and ventilating fan 1. In the present embodiment, the storage unit stores: a target temperature X, a space temperature Y, a map of gears determined by the target temperature X and the space temperature Y, and a threshold value.
The target temperature X is a temperature set by the customer on the heating and ventilating fan 1 according to his or her own needs, that is, a temperature that the customer desires to reach the space.
The space temperature Y is the current temperature of the space in which the temperature detection unit 12 is located, which is detected by the temperature detection unit 12. When the heating and ventilating fan 1 is installed in a room, the space is the space in the room.
The difference value Δ T refers to a value of the difference of the target temperature X minus the space temperature Y.
A map is stored in advance in the storage unit, the map storing the shift stages for each set of temperatures including one space temperature Y and one target temperature X, that is, the map specifying which shift stage is to be operated at which target temperature X each space temperature Y is.
The plurality of gears are provided for controlling the temperature of the wind generated by the wind generating unit 11, and the wind temperature is changed in a hierarchical manner. For example, in the present embodiment, the higher the gear, the higher the temperature of the wind generated by the wind generating unit 11. The temperature here refers to the average temperature at the location of the outlet 112.
The gear of the present embodiment is formed by any combination of the heating amount of the heating portion 14 and the wind speed of the wind generating portion 11, that is, when a certain gear is adjusted, the heating amount and/or the wind speed are/is adjusted by the heating control portion and/or the wind speed control portion according to a predetermined gear.
The gears of the present embodiment include: highest gear, second gear, third gear, lowest gear.
The highest gear is the one in which the temperature of the wind generated by the wind generating portion 11 is highest, and in the highest gear of this embodiment, the heating amount of the heating portion 14 is the largest among the plurality of gears, and the wind speed of the wind generating portion 11 is the fastest among the plurality of gears.
In the second gear of the present embodiment, the heating amount of the heating portion 14 is smaller than that of the highest gear, and the wind speed of the wind generating portion 11 is slower than that of the highest gear.
In the third gear of the present embodiment, the heating amount of the heating portion 14 is the same as that of the second gear, and the wind speed of the wind generating portion 11 is higher than that of the second gear.
The lowest gear is the one in which the temperature of the wind generated by the wind generating unit 11 is the lowest, and in the lowest gear of the present embodiment, the heating amount of the heating unit 14 is the smallest among the plurality of gears, and the wind speed of the wind generating unit 11 is the slowest among the plurality of gears.
When the heating amount is the same, the lower the wind speed of the wind generating portion 11, the higher the temperature of the wind generated by the wind generating portion 11, so the second gear position makes the temperature of the wind generated by the wind generating portion 11 higher than the temperature of the wind generated by the wind generating portion 11 in the third gear position.
The threshold is stored in the storage unit in advance and is used for comparing with the difference value Δ T between the target temperature X and the space temperature Y, so that the heating and ventilating fan 1 executes a corresponding operation mode.
The above is a description of the configuration of the heating and ventilating fan 1 of the first embodiment. The operation of the heating and ventilating fan 1 of the first embodiment will be described.
Referring to fig. 3, the operation process of the heating ventilator 1 of the first embodiment includes: the first stage and the second stage after the first stage.
A first stage comprising: a matching stage and a judging stage.
In the matching stage, the gears specified in the diagram are automatically matched according to the target temperature X and the space temperature Y.
In the judging stage, according to the comparison result between the difference value delta T between the target temperature X and the space temperature Y and the threshold value, judging when the second stage needs to be started.
And in the second stage, the gear is adjusted according to the comparison result of the difference value delta T between the target temperature X and the space temperature Y and the threshold value.
The heating and ventilating fan 1 of the present embodiment can improve the comfort of the user by dividing the temperature control of the air blown from the air generating unit 11 into two stages.
When the customer turns on the heating ventilator 1 and sets the target temperature X, the heating ventilator 1 enters the first stage.
Step 1: and a matching stage is executed, wherein the temperature detection part 12 detects the space temperature Y, the control part 13 receives the target temperature X and the space temperature Y, reads the chart stored in the storage part, selects a corresponding gear in the chart according to the target temperature X and the space temperature Y, and the heating control part and/or the wind speed control part automatically matches a corresponding heating amount and/or wind speed according to the selected gear, adjusts the heating amount and/or the wind speed of the heating control part and/or the wind speed control part, and changes the temperature of the air passing through the wind generation part 11 and the heating part 14. The chart of this example is shown in Table 1:
TABLE 1
As can be seen from table 1, when the customer adjusts the target temperature X to be high, for example, 40 ℃, it can be considered that the customer wants to take a bath or that the customer wants to quickly raise the temperature in the room. Through somatosensory tests, it is found that when a user takes a bath, the user is easy to catch a cold in an indoor environment at 5 ℃, so that the user can meet the requirement of a higher gear.
However, when the customer adjusts the target temperature X to a relatively low temperature, for example, 30 ℃, the customer is considered to be an activity other than bathing in the bathroom, and thus the heating and ventilating fan is set to a relatively appropriate temperature. Through the somatosensory test, when the client does not need to take a bath, if the heating ventilation fan is arranged at a higher gear, the rapidly-rising temperature can bring discomfort to the client.
In other words, the matching stage is to set gears according to the needs of customers, and the most comfortable gears are provided for the customers to operate the heating and ventilating fan. Unlike the prior art, when the difference between the target temperature and the space temperature is within a certain range (for example, greater than 20 ℃), the highest gear is uniformly used.
After Step1, the space temperature Y continues to rise, and the temperature detector 12 continues to detect the space temperature Y in the indoor space, and executes Step 2: and a judging stage. Step2 includes:
step2.1: when the difference value Δ T between the target temperature X and the space temperature Y is equal to a fifth threshold value, the heating and ventilating fan 1 enters a second stage;
step2.2: if the difference Δ T between the target temperature X and the space temperature Y is greater than the fifth threshold value at time T1 after the first stage is started, the heating/ventilating fan 1 is forced to enter the second stage at time T1.
And judging by the Step2.1 and Step2.2 in parallel, and when one condition is met, entering the second stage of the heating and ventilating fan 1, and not entering the judging stage after entering the second stage. In addition, even if the heating and ventilating fan 1 is turned on for time T1, the difference Δ T is not compared with the fifth threshold value as long as the heating and ventilating fan 1 is not in the first stage. Further, T1 in Step2.2 is not less than 5 minutes, where T1 means: when the heat loss of the indoor air is the maximum, the wind generation part 11 operates in a state where the temperature of the blown wind is the highest, and the time required for the space temperature to reach the maximum target temperature value is taken.
When the space temperature Y reaches a certain level, the heating ventilation fan 1 of the embodiment only selects the shift position once at step1 in the first stage. Therefore, in order to prevent the space temperature Y from exceeding or falling too much below the target temperature X, the heating and ventilating fan 1 needs to enter the second stage after operating for a period of time in the first stage, so that the indoor temperature is maintained within a certain range of the target temperature, thereby meeting the requirements of customers.
In order to ensure air supply or to smoothly enter the second stage from the first stage, the second stage is entered when the difference Δ T is equal to the fifth threshold, and the second stage is forcibly entered at time T1 when the difference is maintained at Δ T > the fifth threshold for a time T1 after the first stage is entered.
This is because the following may occur: when the indoor temperature (such as a bathroom) is large or the outdoor temperature is low, the heating ventilator 1 is turned off after a customer uses the heating ventilator 1 for a certain time. At this time, the indoor temperature has increased and is greatly different from the outdoor ambient temperature. When the customer starts the heating ventilator 1 again, the heating ventilator 1 enters the first stage again, and since the temperature is already increased, the heating ventilator 1 may be automatically matched to a gear with a smaller heating amount and/or wind speed according to a gear specified in the graph. At this time, since the gear is small, the heat supplement of the indoor air is less than the heat loss, so that the difference Δ T may not be equal to the fifth threshold all the time, and the heating ventilator 1 may not enter the second stage from the first stage. Therefore, in the embodiment, even if the difference Δ T is still greater than the fifth threshold value within the time T1, at the moment T1, the first stage is forced to enter the second stage, so as to prevent the heating ventilator 1 from failing to enter the second stage.
Step 3: after the second stage, the control unit 13 controls the heating amount of the heating unit 14 and/or the wind speed of the wind generated by the wind generating unit 11 based on the comparison result between the difference Δ T between the target temperature X and the space temperature Y and the threshold value, so as to ensure that the temperature of the wind generated by the wind generating unit 11 is maintained within a predetermined range from the target temperature.
In the embodiment, when the third threshold value < the difference value Δ T is less than or equal to the first threshold value, the gear is adjusted downward to a gear lower than the current gear, for example, the gear is adjusted downward from the highest gear to the second gear; when the first threshold value is larger than the difference value delta T and is smaller than or equal to the second threshold value, the current gear is unchanged; when the second threshold value is less than the difference value delta T and less than or equal to the fourth threshold value, the gear higher than the current gear is adjusted upwards; for example from the lowest gear to the third gear.
However, when the first threshold value < the difference value Δ T ≦ the second threshold value and the current gear is the lowest gear, the lowest gear causes the wind generated by the wind generating unit 11 to have the lowest temperature among the plurality of gears, and therefore, when the range of the difference value Δ T is changed to the third threshold value < the difference value Δ T ≦ the first threshold value, the gear at that time (the lowest gear) is not changed. Similarly, when the first threshold value < the difference Δ T is not less than the second threshold value and the current gear is the highest gear, the highest gear causes the wind generated by the wind generating unit 11 to have the highest temperature among the plurality of gears, and therefore, when the range of the difference Δ T is changed to the second threshold value < the difference Δ T is not more than the fourth threshold value, the gear (highest gear) at that time is not changed.
In addition, to prevent the customer from abruptly changing the target temperature during the second stage. In the heating and ventilating fan 1 of the embodiment, the lowest gear is operated when the difference value delta T is less than or equal to the third threshold value in the second stage; when the fourth threshold value < the difference Δ T, the highest gear is operated. In this way, the heating and ventilating fan 1 can rapidly change the temperature of the wind generated by the wind generating unit 11 even if the user suddenly lowers or raises the target temperature.
Finally, when the user turns off the heating ventilator 1, the heater stops operating, but the wind generating part 11 continues to operate for a period of time T2 at the minimum rotation speed, so that the temperature of the heater can be reduced, and excessive cold wind is not blown into the room.
(second embodiment)
The second embodiment of the invention provides a method for controlling a heating ventilator, which is used for controlling the heating ventilator 1 of the first embodiment.
Referring to fig. 4, the method for controlling the heating and ventilating fan 1 includes: a first stage and a second stage.
When a customer turns on the heating ventilator 1 and sets a target temperature X, the control method enters a first stage, which includes:
step S201: and a matching stage, namely automatically matching the gears specified in the chart according to the target temperature X and the space temperature Y.
The matching stage specifically comprises: the temperature detecting part 12 detects the space temperature Y, the control part 13 receives the target temperature X and the space temperature Y, reads the table stored in the storage part, selects a corresponding gear in the table according to the target temperature X and the space temperature Y, the heating control part and/or the wind speed control part automatically matches a corresponding heating amount and/or wind speed according to the selected gear, adjusts the heating amount and/or the wind speed of the heating control part and/or the wind speed control part, and changes the temperature of the air passing through the wind generating part 11 and the heating part 14. The operations of receiving the target temperature X and the space temperature Y, reading the map in the storage portion, and selecting the corresponding gear in the map may be performed by the heating control portion or the wind speed control portion.
Step S202: and a judging stage, namely judging when to enter the second stage according to the comparison result of the difference value delta T between the target temperature X and the space temperature Y and the threshold value.
After step S201, the space temperature Y continues to rise, and the temperature detector 12 continues to detect the space temperature Y of the indoor space, and then executes a determination stage. The judging stage specifically comprises:
sub-step S201 a: when the difference value Δ T between the target temperature X and the space temperature Y is equal to a fifth threshold value, the heating and ventilating fan 1 enters a second stage;
sub-step S201 b: if the difference Δ T between the target temperature X and the space temperature Y is greater than the fifth threshold value at time T1 after the first stage is started, the heating/ventilating fan 1 is forced to enter the second stage at time T1.
The substep S201a and the substep S201b perform judgments in parallel, and when one of the conditions is met, the heating and ventilating fan 1 enters the second stage, and does not enter the judgments after entering the second stage. Even if the heating and ventilating fan 1 is turned on for the time T1, as long as the heating and ventilating fan 1 is not in the first stage, the difference Δ T is not compared with the fifth threshold. In addition, T1 in the sub-step S201b is not less than 5 minutes, where T1 means: when the heat loss of the indoor air is the maximum, the wind generation part 11 operates in a state where the temperature of the blown wind is the highest, and the time required for the space temperature to reach the maximum target temperature value is taken.
Step S203: and in the second stage, the gear is adjusted according to the comparison result of the difference value delta T between the target temperature X and the space temperature Y and the threshold value.
After the second stage, the control unit 13 controls the heating amount of the heating unit 14 and/or the wind speed of the wind generated by the wind generating unit 11 based on the comparison result between the difference Δ T between the target temperature X and the space temperature Y and the threshold value, so as to ensure that the temperature of the wind generated by the wind generating unit 11 is maintained within a predetermined range from the target temperature.
In the embodiment, when the third threshold value < the difference value Δ T is less than or equal to the first threshold value, the gear is adjusted downward to a gear lower than the current gear, for example, the gear is adjusted downward from the highest gear to the second gear; when the first threshold value is larger than the difference value delta T and is smaller than or equal to the second threshold value, the current gear is unchanged; when the second threshold value is less than the difference value delta T and less than or equal to the fourth threshold value, the gear higher than the current gear is adjusted upwards; for example from the lowest gear to the third gear.
However, when the first threshold value < the difference value Δ T ≦ the second threshold value and the current gear is the lowest gear, the lowest gear causes the wind generated by the wind generating unit 11 to have the lowest temperature among the plurality of gears, and therefore, when the range of the difference value Δ T is changed to the third threshold value < the difference value Δ T ≦ the first threshold value, the gear at that time (the lowest gear) is not changed. Similarly, when the first threshold value < the difference Δ T is not less than the second threshold value and the current gear is the highest gear, the highest gear causes the wind generated by the wind generating unit 11 to have the highest temperature among the plurality of gears, and therefore, when the range of the difference Δ T is changed to the second threshold value < the difference Δ T is not more than the fourth threshold value, the gear (highest gear) at that time is not changed.
In addition, in order to prevent the customer from suddenly changing the target temperature in the second stage, the control method of the embodiment further sets the lowest gear to be operated when the difference value Δ T is less than or equal to the third threshold value; when the fourth threshold value < the difference Δ T, the highest gear is operated. In this way, the heating and ventilating fan 1 can rapidly change the temperature of the wind generated by the wind generating unit 11 even if the user suddenly lowers or raises the target temperature.
Finally, when the user turns off the heating ventilator 1, the heater stops operating, but the wind generating part 11 continues to operate for a period of time T2 at the minimum rotation speed, so that the temperature of the heater can be reduced, and excessive cold wind is not blown into the room.
The control method of the present embodiment divides the temperature control of the wind blown out by the wind generating part 11 into two stages, and can improve the comfort of the customer.
Up to this point, the present embodiment has been described in detail with reference to the accompanying drawings. From the above description, those skilled in the art should clearly recognize the present invention.
It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. In addition, the above definitions of the respective elements are not limited to the specific structures, shapes or modes mentioned in the embodiments, and those skilled in the art may easily modify or replace them.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (15)
1. A heating ventilator, comprising:
a temperature detecting part for detecting the space temperature Y of the indoor space,
a wind generating part for blowing out wind,
a heating part for heating the wind generated by the wind generating part,
a heating control section for controlling the heating section,
a wind speed control part for controlling the wind speed of the wind generated by the wind generation part,
a storage unit for storing the target temperature X and the space temperature Y detected by the temperature detection unit,
it is characterized by also comprising a first stage and a second stage after the first stage is finished,
a first stage in which the heating control unit and/or the wind speed control unit automatically match the corresponding heating amount and/or wind speed according to the target temperature X and the space temperature Y detected by the temperature detection unit,
and in the second stage, the heating amount and/or the wind speed are/is controlled by the heating control part and/or the wind speed control part according to the comparison result of the difference value delta T between the target temperature X and the space temperature Y and a threshold value.
2. A heating and ventilating fan according to claim 1,
the heating section includes a plurality of heaters, the heating control section controls the amount of heating of the heating section by controlling ON/OFF states of each of the plurality of heaters,
the wind generating part includes a motor which is driven by a motor,
the wind speed control part changes the wind speed of the wind generated by the wind generating part by changing the rotation speed of the motor,
any combination of the heating amount of the heating portion and/or the wind speed of the wind generating portion forms a plurality of gears that control the temperature of the wind generated by the wind generating portion.
3. A heating and ventilating fan according to claim 2,
a map of the gear position determined by the target temperature X and the space temperature Y is stored in the storage unit,
in the first stage, the heating control unit and/or the wind speed control unit controls the temperature of the wind generated by the wind generation unit according to the gear of the map.
4. A heating and ventilating fan according to claim 3,
the plurality of gears are different from each other and are arranged in order of the temperature of the wind generated by the wind generating unit.
5. The heating and ventilating fan according to claim 4, wherein the gears comprise: a highest gear that maximizes the temperature of the wind generated by the wind generating portion among the plurality of gears,
and a lowest gear that minimizes the temperature of the wind generated by the wind generating portion among the plurality of gears.
6. A heating and ventilating fan according to claim 5,
the threshold value comprises: a first threshold value, a second threshold value,
the first threshold value < the second threshold value.
7. A heating and ventilating fan according to claim 6,
at the time of the second stage, the first stage,
when the difference value delta T is smaller than or equal to the first threshold value, the gear is adjusted downwards to a gear lower than the current gear,
when the difference value delta T is larger than the first threshold value and is smaller than or equal to the second threshold value, maintaining the current gear unchanged,
when the difference value delta T is larger than the second threshold value, the gear higher than the current gear is adjusted upwards.
8. A heating and ventilating fan according to claim 6,
at the time of the second stage, the first stage,
maintaining the shift stage unchanged when changing from a state in which the difference Δ T is greater than the first threshold value and is equal to or less than the second threshold value to a state in which the difference Δ T is greater than the second threshold value,
and maintaining the gear unchanged when changing from the state where the difference value Delta T is greater than the first threshold value and less than or equal to the second threshold value to the state where the difference value Delta T is less than or equal to the first threshold value.
9. A heating and ventilating fan according to any one of claims 6 to 8,
the threshold value comprises: a third threshold value, a fourth threshold value,
said third threshold < said first threshold < said second threshold < said fourth threshold,
at the time of the second stage, the first stage,
when the difference value delta T is larger than a third threshold value and is smaller than or equal to the first threshold value, the gear is adjusted downwards,
when the difference value delta T is larger than the first threshold value and is smaller than or equal to the second threshold value, maintaining the current gear unchanged,
and when the difference value delta T is larger than the second threshold value and is smaller than or equal to a fourth threshold value, the gear is adjusted upwards.
10. A heating and ventilating fan according to claim 9, wherein in the second phase, when the difference Δ T is greater than a fourth threshold, the highest gear is operated, and when the difference Δ T is less than or equal to a third threshold, the lowest gear is operated.
11. A heating and ventilating fan according to claim 1,
the threshold further comprises: the value of the fifth threshold value is set,
the first stage further comprises a matching stage and a judging stage after the matching stage,
a matching stage, in which the heating control part and/or the wind speed control part automatically matches the corresponding heating quantity and/or wind speed according to the target temperature X and the space temperature Y, and a judging stage, in which the heating and ventilating fan is judged when entering the second stage according to the comparison result of the difference value delta T and the fifth threshold value.
12. A heating and ventilating fan according to claim 11,
and when the difference value delta T is equal to a fifth threshold value, the heating ventilator enters the second stage from the first stage.
13. A heating and ventilating fan according to claim 11 or 12,
if the difference Δ T is always smaller than the fifth threshold value at time T1, the heating and ventilating fan enters the second stage from the first stage at time T1.
14. A heating and ventilating fan according to claim 1,
after the heater stops operating, the wind generating unit stops operating after the wind generating unit continues operating for time T2.
15. A control method of a heating ventilator, the heating ventilator comprising:
a temperature detecting part for detecting the space temperature Y of the indoor space,
a wind generating part for blowing out wind,
a heating part for heating the wind generated by the wind generating part,
a heating control section for controlling the heating section,
a wind speed control part for controlling the wind speed of the wind generated by the wind generation part,
a storage unit for storing the target temperature X and the space temperature Y detected by the temperature detection unit,
the control method is characterized by comprising the following steps:
starting the heating part and the wind generating part;
the temperature detecting part starts to detect the space temperature Y of the indoor space,
step S201: according to the target temperature X and the space temperature Y detected by the temperature detection part, the heating control part and/or the wind speed control part automatically match the corresponding heating quantity and/or wind speed in the matching stage of the first stage,
step S202: judging when the heating and ventilating fan enters the second stage according to the comparison result of the difference value delta T and the threshold value,
step S203: after the first stage is finished, according to a comparison result of a difference value delta T between the target temperature X and the space temperature Y and a threshold value, the heating control part and/or the wind speed control part controls the heating quantity and/or the wind speed in a second stage;
after the heater stops operating, the wind generating unit stops operating after the wind generating unit continues operating for time T2.
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| CN201810979744.0A CN110857819B (en) | 2018-08-24 | 2018-08-24 | Heating ventilation fan and control method thereof |
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| CN201810979744.0A CN110857819B (en) | 2018-08-24 | 2018-08-24 | Heating ventilation fan and control method thereof |
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| CN110857819B (en) | 2022-05-24 |
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