CN107228444B - Humidifying device and control method thereof - Google Patents
Humidifying device and control method thereof Download PDFInfo
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- CN107228444B CN107228444B CN201710495706.3A CN201710495706A CN107228444B CN 107228444 B CN107228444 B CN 107228444B CN 201710495706 A CN201710495706 A CN 201710495706A CN 107228444 B CN107228444 B CN 107228444B
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- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
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Abstract
The invention discloses a humidifying device and a control method thereof, wherein the humidifying device comprises: a housing; an air inlet and an air outlet are arranged; a humidifying part and a water tank provided in the housing; the fan is arranged in the shell and used for driving air to be sucked from the air inlet and to be exhausted from the air outlet after being humidified by the humidifying part; the first temperature sensor and the second temperature sensor are respectively used for detecting the indoor air dry bulb temperature and the air wet bulb temperature in the humidifying part; and the controller is used for judging a preset temperature interval to which the indoor air dry bulb temperature belongs, acquiring the ratio of the air wet bulb temperature to the indoor air dry bulb temperature, and controlling the humidifying device to be turned on or turned off according to the preset temperature interval and the ratio. The device can be automatically humidified and operated when the air humidity is lower by detecting the wet air temperature and the indoor air dry air temperature, and is automatically stopped when the air humidity is higher, so that the indoor air humidity is maintained in a comfortable humidity range of a human body, and the device is simple in structure and low in cost.
Description
Technical Field
The invention relates to the technical field of electric appliances, in particular to a humidifying device and a control method of the humidifying device.
Background
At present, although a few of humidification devices are provided with humidity sensors to detect air humidity, the price of the humidity sensors is very high, which is not favorable for cost control. Therefore, the humidifier on the market has no humidity detection function, and thus cannot maintain the indoor air humidity within a humidity range comfortable for human body.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide a humidifier, which can automatically perform a humidification operation when the air humidity is low and automatically stop when the air humidity is high by detecting the wet air bulb temperature and the dry air bulb temperature of the room, so that the air humidity of the room can be maintained within a humidity range comfortable for human body, and has a simple structure and low cost.
Another object of the present invention is to provide a control method of a humidifying device.
In order to achieve the above object, an embodiment of an aspect of the present invention provides a humidifying device, including: a housing; the air inlet and the air outlet are arranged on the shell; the humidifying part is arranged in the shell, the lower part of the humidifying part is soaked in the water tank, and the humidifying part sucks water in the water tank to the upper part through siphonage; the fan is arranged in the shell and used for driving air to be sucked from the air inlet and to be exhausted from the air outlet after being humidified by the humidifying part; a first temperature sensor for detecting an indoor air dry bulb temperature; a second temperature sensor for detecting an air wet bulb temperature of the humidification portion; and the controller is used for judging the preset temperature interval to which the indoor air dry bulb temperature belongs, acquiring the ratio of the air wet bulb temperature to the indoor air dry bulb temperature, and controlling the humidifying device to be turned on or turned off according to the preset temperature interval to which the indoor air dry bulb temperature belongs and the ratio.
According to the humidifying device provided by the embodiment of the invention, the first temperature sensor is used for detecting the indoor air dry bulb temperature, the second temperature sensor is used for detecting the air wet bulb temperature in the humidifying part, the controller is used for judging the preset temperature interval to which the indoor air dry bulb temperature belongs, acquiring the ratio of the air wet bulb temperature to the indoor air dry bulb temperature, and controlling the humidifying device to be turned on or turned off according to the preset temperature interval and the ratio to which the indoor air dry bulb temperature belongs. From this, the device is through detecting wet bulb temperature of air and the dry bulb temperature of indoor air, can be when air humidity is lower automatic humidification operation to automatic shutdown when air humidity is higher, thereby can make indoor air humidity maintain in the comfortable humidity range of human body, and simple structure, with low costs.
In addition, the humidifying device provided by the above embodiment of the invention can also have the following additional technical characteristics:
according to an embodiment of the present invention, the number of the preset temperature intervals is multiple, each preset temperature interval corresponds to a first set value and a second set value, the first set value is smaller than the second set value, wherein when the ratio is smaller than the first set value corresponding to the preset temperature interval to which the indoor air dry bulb temperature currently belongs, the controller controls the humidification device to be turned on; and when the ratio is larger than a second set value corresponding to a preset temperature interval to which the indoor air dry bulb temperature currently belongs, the controller controls the humidifying device to be closed.
According to an embodiment of the present invention, the first temperature sensor is a dry bulb temperature sensor, the second temperature sensor is a wet bulb temperature sensor, the dry bulb temperature sensor is disposed inside the air inlet, and the wet bulb temperature sensor is disposed inside the humidification portion. .
According to an embodiment of the present invention, the temperature range corresponding to the whole of the plurality of preset temperature intervals is 10 ℃ to 34 ℃.
According to an embodiment of the present invention, the plurality of preset temperature ranges are five, wherein a first preset temperature range is [ 10, 15 ], a second preset temperature range is [ 15, 20 ], a third preset temperature range is [ 20, 25 ], a fourth preset temperature range is [ 25, 30 ], and a fifth preset temperature range is [ 30, 34 ].
According to an embodiment of the present invention, the controller is further configured to control the humidifier to restart at every preset time interval after the humidifier is turned off, obtain the air wet bulb temperature and the room air dry bulb temperature, and perform re-judgment according to the air wet bulb temperature and the room air dry bulb temperature.
In order to achieve the above object, another embodiment of the present invention provides a control method of a humidification apparatus, including: after the humidifying device is started, detecting the temperature of the indoor air dry bulb and detecting the temperature of the air wet bulb in the humidifying part of the humidifying device; judging a preset temperature interval to which the indoor air dry bulb temperature belongs; acquiring the ratio of the air wet bulb temperature to the indoor air dry bulb temperature; and controlling the humidifying device to be opened or closed according to the preset temperature interval to which the indoor air dry bulb temperature belongs and the ratio.
According to the control method of the humidifying device, after the humidifying device is started, firstly the indoor air dry bulb temperature is detected, the air wet bulb temperature in the humidifying part of the humidifying device is detected, then the preset temperature interval to which the indoor air dry bulb temperature belongs is judged, the ratio of the air wet bulb temperature to the indoor air dry bulb temperature is obtained, and finally the humidifying device is controlled to be started or stopped according to the preset temperature interval to which the indoor air dry bulb temperature belongs and the ratio. Therefore, according to the method, the automatic humidification operation of the humidification device can be controlled when the air humidity is low by detecting the air wet bulb temperature and the indoor air dry bulb temperature, and the humidification device is controlled to automatically stop when the air humidity is high, so that the indoor air humidity can be maintained in a humidity range comfortable for a human body, and the cost of the humidification device can be effectively controlled.
In addition, the control method of the humidifying device proposed by the above embodiment of the present invention may further have the following additional technical features:
according to an embodiment of the present invention, the number of the preset temperature intervals is multiple, each preset temperature interval corresponds to a first set value and a second set value, the first set value is smaller than the second set value, wherein when the ratio is smaller than the first set value corresponding to the preset temperature interval to which the indoor air dry bulb temperature currently belongs, the humidification device is controlled to be turned on; and when the ratio is larger than a second set value corresponding to a preset temperature interval to which the indoor air dry bulb temperature currently belongs, controlling the humidifying device to be closed.
According to one embodiment of the present invention, the indoor air dry bulb temperature is detected by a dry bulb temperature sensor disposed inside the air inlet, and the air wet bulb temperature is detected by a wet bulb temperature sensor disposed inside the humidification portion. .
According to an embodiment of the present invention, the temperature range corresponding to the whole of the plurality of preset temperature intervals is 10 ℃ to 34 ℃.
According to an embodiment of the present invention, the plurality of preset temperature ranges are five, wherein a first preset temperature range is [ 10, 15 ], a second preset temperature range is [ 15, 20 ], a third preset temperature range is [ 20, 25 ], a fourth preset temperature range is [ 25, 30 ], and a fifth preset temperature range is [ 30, 34 ].
According to one embodiment of the invention, after the humidifying device is turned off, the humidifying device is controlled to be restarted every preset time interval, the air wet bulb temperature and the indoor air dry bulb temperature are obtained, and the judgment is carried out again according to the air wet bulb temperature and the indoor air dry bulb temperature.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which,
fig. 1 is a schematic structural view of a humidifying device according to an embodiment of the present invention;
fig. 2 is a flowchart of a control method of a humidifying device according to one embodiment of the present invention; and
fig. 3 is a flowchart of a control method of a humidifying device according to one specific example of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
A proposed humidifying device and a control method of the humidifying device according to an embodiment of the present invention are described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a humidifying device according to an embodiment of the present invention. As shown in fig. 1, the humidifying device includes: the air conditioner comprises a shell 1, an air inlet 2, an air outlet 3, a humidifying part 4, a water tank 5, a fan 6, a first temperature sensor 7, a second temperature sensor 8 and a controller 9.
Wherein, the air inlet 2 and the air outlet 3 are arranged on the shell 1. The humidifying part 4 and the water tank 5 are provided in the case 1, the lower part of the humidifying part 4 is soaked in the water tank 5, and the humidifying part 4 sucks water in the water tank 5 to the upper part by a siphon action. The fan 6 is arranged in the housing 1, and the fan 6 is used for driving air to be sucked from the air inlet 2, humidified by the humidifying part 4 and then discharged from the air outlet 3. The first temperature sensor 7 is used to detect the indoor air dry bulb temperature Tg. The second temperature sensor 8 is for detecting the air wet bulb temperature Ts in the humidifying portion 4. The controller 9 is configured to determine a preset temperature range to which the indoor air dry bulb temperature Tg belongs, obtain a ratio of the air wet bulb temperature Ts to the indoor air dry bulb temperature Tg, and control the humidification device to be turned on or turned off according to the preset temperature range to which the indoor air dry bulb temperature Tg belongs and the ratio.
Further, in the embodiment of the present invention, the first temperature sensor 7 is a dry bulb temperature sensor, the second temperature sensor 8 is a wet bulb temperature sensor, the dry bulb temperature sensor is disposed inside the air inlet 2, and the wet bulb temperature sensor is disposed inside the humidifying portion 4.
Specifically, as shown in fig. 1, water is stored in the water tank 5, the lower portion of the humidifying unit 4 is immersed in the water tank 5, and the humidifying unit 4 has a water absorbing function. For example, the humidifying part 4 may be made of paper, gauze, cotton cloth, absorbent ceramic, sponge, etc., and the humidifying part 4 absorbs water in the water tank 5 to the upper part by a siphon action. The fan 6 drives air to be sucked from the air inlet 2, the air enters the fan 6 through the fan inlet 10 after being humidified by the humidifying part 4, and the air is exhausted from the air outlet 3 after being acted by the fan 6, so that the air is humidified. The first temperature sensor 7 and the second temperature sensor 8 are the same temperature sensor, and the first temperature sensor 7 is used for detecting the indoor air dry bulb temperature Tg, i.e. the indoor temperature. The second temperature sensor 8 is arranged in the humidifying part 4, and the outside of the second temperature sensor is wrapped with wet gauze, which is equivalent to the corresponding air temperature when 100% humidity is detected. It can be understood that the temperature sensor has a low price and reliable performance, so the cost of the humidifying device can be effectively controlled by the temperature sensor.
Generally, the air wet bulb temperature Ts is less than or equal to the indoor air dry bulb temperature Tg, and when the air wet bulb temperature Ts is equal to the indoor air dry bulb temperature Tg, it means that the current humidity is 100%. The ratio of Ts to Tg increases with the increase of air humidity at the same indoor air dry bulb temperature Tg. Therefore, the indoor air humidity can be judged according to the ratio of Ts to Tg. Because the comfortable humidity ranges of human bodies are different at different environmental temperatures, the indoor temperature is divided into different preset temperature intervals. When the indoor temperature is in different preset temperature intervals, the ratio range of Ts to Tg corresponding to the comfortable humidity range of the human body is different. The controller 9 controls the humidifying device to be automatically turned on or off according to a preset temperature interval to which the indoor air dry bulb temperature Tg belongs and the ratio of Ts to Tg. Therefore, the device can automatically humidify and operate when the air humidity is lower by detecting the temperature of the wet air ball and the temperature of the dry air ball in the room, and automatically stop when the air humidity is higher, so that the indoor air humidity can be maintained in a comfortable humidity range of a human body, and the device has the advantages of simple structure and low cost.
According to an embodiment of the present invention, the preset temperature interval may be a plurality of preset temperature intervals, each preset temperature interval corresponds to a first set value Ti1 and a second set value Ti2, the first set value Ti1 is smaller than the second set value Ti2, wherein the controller 9 controls the humidifying device to be turned on when the ratio is smaller than the first set value Ti1 corresponding to the preset temperature interval to which the indoor air dry bulb temperature Tg currently belongs. When the ratio is larger than a second set value Ti2 corresponding to the currently affiliated preset temperature interval, the controller 9 controls the humidifying device to close.
In the embodiment of the invention, the temperature range corresponding to the whole of the plurality of preset temperature intervals is 10-34 ℃.
Further, according to an embodiment of the present invention, the plurality of preset temperature intervals is five, wherein a first preset temperature interval is [ 10, 15 ], a second preset temperature interval is [ 15, 20 ], a third preset temperature interval is [ 20, 25 ], a fourth preset temperature interval is [ 25, 30 ], and a fifth preset temperature interval is [ 30, 34 ].
Specifically, a large number of tests and researches show that the ratio of the air wet bulb temperature Ts to the indoor air dry bulb temperature Tg is reduced along with the reduction of the indoor air dry bulb temperature Tg in the same air humidity state; and when the temperature of the indoor air dry bulb Tg is the same, the ratio of Ts to Tg is increased along with the increase of the air humidity. For example, as shown in table 1 below, when the indoor air dry bulb temperature Tg is 36 ℃, 30 ℃, 25 ℃, 20 ℃, 15 ℃ and 10 ℃ respectively under the condition that the air humidity is 35%, the corresponding ratios of the air wet bulb temperature Ts and the air wet bulb temperature Ts to the indoor air dry bulb temperature Tg are shown in table 1 below.
TABLE 1
| Tg | 36℃ | 30℃ | 25℃ | 20℃ | 15 |
10℃ |
| Ts | 23.52℃ | 19.05℃ | 15.35℃ | 11.63℃ | 7.89℃ | 4.09℃ |
| Ts/Tg | 0.653 | 0.635 | 0.614 | 0.5815 | 0.526 | 0.409 |
As can be seen from table 1, when the indoor air dry bulb temperature Tg is decreased from 36 ℃ to 10 ℃ in the same 35% air humidity state, the ratio of the corresponding air wet bulb temperature Ts to the indoor air dry bulb temperature Tg is decreased from 0.653 to 0.409.
It can be understood that when the indoor air dry bulb temperature Tg is low, the air humidity value required for a human body to feel comfortable is higher, and when the indoor air dry bulb temperature Tg is high, the air humidity value required for a human body to feel comfortable is lower. For example, when the indoor temperature, i.e., the indoor air dry bulb temperature Tg, is in the range of 10 ℃ to 19 ℃, the air humidity range in which a human body feels comfortable is 50% -65%; and when the indoor temperature is in the range of 20-34 ℃, the range of air humidity comfortable for human body is 40-50%. When the indoor temperature is lower than 10 ℃, the human body feels cold mainly due to low temperature; when the indoor temperature is higher than 35 ℃, the human body feels heat mainly due to the high temperature. Humidification at room temperature above 35 c or below 10 c will be perceived as warmer or colder.
Therefore, the indoor temperature is divided into a plurality of preset temperature intervals from 10 ℃ to 34 ℃, preferably, the indoor temperature is divided into five preset temperature intervals from 10 ℃ to 34 ℃, which are respectively [ 10, 15 ], [ 15, 20 ], [ 20, 25 ], [ 25, 30 ]) and [ 30, 34 ], and a large number of experiments show that when the indoor temperature is in different preset temperature intervals, the upper and lower limits of the ratio of Ts to Tg corresponding to the air humidity range comfortable for the human body are respectively: t11 ═ 0.60; t12 ═ 0.75; t21 ═ 0.65; t22 ═ 0.77; t31 ═ 0.61; t32 ═ 0.73; t41 ═ 0.62; t42 ═ 0.75; t51 ═ 0.65; t52 ═ 0.77. The upper and lower limits of the ratio of Ts to Tg corresponding to different preset temperature intervals, that is, the first set value Ti1 and the second set value Ti2 corresponding to different preset temperature intervals are prestored in the humidifying device.
After the humidifier is started, the controller 9 respectively obtains the indoor air dry bulb temperature Tg and the air wet bulb temperature Ts in real time through the first temperature sensor 7 and the second temperature sensor, and obtains the ratio of the air wet bulb temperature Ts to the indoor air dry bulb temperature Tg. Then, the controller 9 determines a preset temperature interval in which the indoor air dry bulb temperature Tg is located, and obtains a first set value Ti1 and a second set value Ti2 corresponding to the preset temperature interval, that is, upper and lower limits of a ratio of Ts to Tg. Finally, the controller 9 judges whether the current Ts/Tg is within the corresponding range of Ti1 and Ti2, if the Ts/Tg is larger than Ti1, it indicates that the current air does not need to be humidified, and the controller 9 directly controls the humidifying device to close the humidifying function; if Ts/Tg is less than Ti1, the current air humidity is low, the controller 9 controls the fan 6 to operate, the humidifying device starts the humidifying function to humidify the air, and detects and judges whether Ts/Tg is greater than Ti2 in real time, if Ts/Tg is greater than Ti2, the current air humidity is determined to reach the upper limit of the comfortable humidity of the human body, and the controller 9 controls the humidifying device to stop the humidifying function. That is, the controller 9 controls the humidifying device to humidify the current air humidity from a lower limit satisfying the human body comfort humidity to an upper limit satisfying the human body comfort humidity, which is generally higher than the lower limit of the human body comfort humidity by 10%.
For example, when the indoor air dry bulb temperature Tg is in the preset temperature range of [ 10, 15 ]), if the controller 9 determines that Ts/Tg is less than 0.60(T11), the controller 9 controls the humidifying device to turn on the humidifying function, and until Ts/Tg is greater than 0.75(T12), the controller 9 controls the humidifying device to turn off the humidifying function. And when the indoor air dry bulb temperature Tg is less than 10 ℃ or more than 35 ℃, the controller 9 does not control the humidifying operation of the humidifying device no matter whether Ts/Tg is within the range of the corresponding first set value and second set value. Therefore, the device can automatically control the humidifying operation of the humidifying device when the air humidity is low, and stop the humidifying operation when the air humidity is high, so that the indoor air humidity can be maintained in a humidity range comfortable for human body, and the device has simple structure and low cost.
According to an embodiment of the present invention, the controller 9 may be further configured to control the humidifier to restart at every preset time interval T after the humidifier is turned off, obtain the air wet bulb temperature Ts and the room air dry bulb temperature Tg, and perform a re-judgment according to the air wet bulb temperature Ts and the room air dry bulb temperature Tg.
Specifically, after the humidification apparatus is stopped, the controller 9 controls the humidification apparatus to be automatically restarted again after a preset time interval T is set. And acquiring the wet air bulb temperature Ts and the dry air bulb temperature Tg of the indoor air after starting, and judging whether re-humidification is needed according to the ratio of Ts to Tg so as to continuously and stably humidify the indoor air and keep the indoor humidity within the comfortable humidity range of the human body.
The preset time interval T may be a preset constant value, such as 30 minutes, 60 minutes, etc. The preset time interval T may also be a dynamic time interval value associated with the current air humidity, for example, when the current air humidity is high, the preset time interval T waiting at the restart is high, and when the current humidity is low, the preset time interval T waiting at the restart is small, so as to better meet the requirement of comfort humidity. For example, the factory preset time interval T set by the humidifying device is 60 minutes, and when the humidifying device is started, if the current Ts/Tg is 10% smaller than the first set value Ti1, the preset time interval T of the next automatic start is reduced by 10% on the basis of 60 minutes (that is, the preset time interval of the next automatic start is 54 minutes); if the current Ts/Tg is 10% greater than the second set value Ti2, the preset time interval T for the next automatic start is extended by 10% from 60 minutes (i.e. the preset time interval for the next automatic start is 66 minutes).
According to an embodiment of the present invention, as shown in fig. 1, a filter screen 11 may be further disposed behind the air inlet 2 of the humidifying device, so as to filter dust in the air, prevent the dust from blocking the humidifying part 4, and ensure that the air speed passing through the humidifying part 4 is greater than 2.5 m/s, which is beneficial to improving the humidifying efficiency. A water level detection switch 12 may be further provided in the water tank 5 so as to detect the water level in the water tank 5. The controller 9 determines whether the water tank 5 is short of water based on the water level information in the water tank 5 detected by the water level detecting switch 12. If the water tank 5 is judged to be deficient in water, the controller 9 can control related prompting devices such as an indicator lamp, a voice broadcast module, a buzzer and the like to send out water deficiency prompting information.
Relevant experiments prove that the humidifying device provided by the embodiment of the invention can start an air conditioner to refrigerate in summer, and can continuously and effectively keep the indoor air humidity at about 40-50% when the indoor environment temperature is 22-28 ℃; and the air conditioner is started to heat in winter, when the set temperature of the air conditioner is set to be 15-20 ℃, the humidity of indoor air can be continuously and effectively kept to be about 50-60%, people cannot feel dry, and the requirement of comfort of human bodies on humidity can be well met.
In summary, according to the humidifier of the embodiment of the invention, the first temperature sensor detects the indoor air dry bulb temperature, the second temperature sensor detects the air wet bulb temperature in the humidification portion, the controller determines the preset temperature interval to which the indoor air dry bulb temperature belongs, obtains the ratio of the air wet bulb temperature to the indoor air dry bulb temperature, and controls the humidifier to be turned on or turned off according to the preset temperature interval to which the indoor air dry bulb temperature belongs and the ratio. From this, the device can be when air humidity is lower automatic humidification operation through detecting wet bulb temperature of air and the dry bulb temperature of indoor air to self-closing when air humidity is higher, thereby can make indoor air humidity maintain in the comfortable humidity range of human body, and simple structure, with low costs.
Fig. 2 is a flowchart of a control method of a humidifying device according to one embodiment of the present invention. As shown in fig. 2, the method comprises the steps of:
s1, after the humidifier is started, detects the dry bulb temperature Tg of the indoor air, and detects the wet bulb temperature Ts of the air in the humidifier.
Further, in the embodiment of the present invention, as shown in fig. 1, the indoor air dry bulb temperature Tg may be detected by a dry bulb temperature sensor (i.e., a first temperature sensor) and the air wet bulb temperature Ts may be detected by a wet bulb temperature sensor (i.e., a second temperature sensor), wherein the dry bulb temperature sensor is disposed inside the intake port and the wet bulb temperature sensor is disposed inside the humidification portion.
It can be understood that the temperature sensor has a low price and reliable performance, so the cost of the humidifying device can be effectively controlled by the temperature sensor.
And S2, judging the preset temperature interval to which the indoor air dry bulb temperature Tg belongs.
And S3, controlling the on or off of the humidifying device according to the preset temperature interval and the ratio to which the indoor air dry bulb temperature Tg belongs.
Specifically, generally, the air wet bulb temperature Ts is less than or equal to the indoor air dry bulb temperature Tg, and when the air wet bulb temperature Ts is equal to the indoor air dry bulb temperature Tg, it means that the current humidity is 100%. The ratio of Ts to Tg increases with the increase of air humidity at the same indoor air dry bulb temperature Tg. Therefore, the indoor air humidity can be judged according to the ratio of Ts to Tg. Because the comfortable humidity ranges of human bodies are different at different environmental temperatures, the indoor temperature is divided into different preset temperature intervals. When the indoor temperature is in different preset temperature intervals, the ratio range of Ts to Tg corresponding to the comfortable humidity range of the human body is different. And controlling the humidifying device to be automatically turned on or turned off according to a preset temperature interval to which the indoor air dry bulb temperature Tg belongs and the ratio of Ts to Tg. Therefore, the method can be automatically started when the air humidity is low and automatically closed when the air humidity is high by detecting the air wet bulb temperature and the indoor air dry bulb temperature, so that the indoor air humidity can be maintained in a humidity range comfortable for human bodies, and the cost of the humidifying device can be effectively controlled.
According to an embodiment of the present invention, there are a plurality of preset temperature intervals, each preset temperature interval corresponds to a first set value Ti1 and a second set value Ti2, the first set value Ti1 is smaller than the second set value Ti2, wherein when the ratio is smaller than the first set value Ti1 corresponding to the preset temperature interval to which the indoor air dry bulb temperature Tg currently belongs, the humidifying device is controlled to be turned on; and when the ratio is larger than a second set value Ti2 corresponding to the preset temperature interval to which the indoor air dry bulb temperature Tg currently belongs, controlling the humidifying device to be closed.
In the embodiment of the invention, the temperature range corresponding to the whole of the plurality of preset temperature intervals is 10-34 ℃.
Further, according to an embodiment of the present invention, the plurality of preset temperature intervals is five, wherein a first preset temperature interval is [ 10, 15 ], a second preset temperature interval is [ 15, 20 ], a third preset temperature interval is [ 20, 25 ], a fourth preset temperature interval is [ 25, 30 ], and a fifth preset temperature interval is [ 30, 34 ].
Specifically, a large number of tests and researches show that the ratio of the air wet bulb temperature Ts to the indoor air dry bulb temperature Tg is reduced along with the reduction of the indoor air dry bulb temperature Tg in the same air humidity state; and when the temperature of the indoor air dry bulb Tg is the same, the ratio of Ts to Tg is increased along with the increase of the air humidity. For example, as shown in table 1 below, when the indoor air dry bulb temperature Tg is 36 ℃, 30 ℃, 25 ℃, 20 ℃, 15 ℃ and 10 ℃ respectively under the condition that the air humidity is 35%, the corresponding ratios of the air wet bulb temperature Ts and the air wet bulb temperature Ts to the indoor air dry bulb temperature Tg are shown in table 1 below.
TABLE 1
| Tg | 36℃ | 30℃ | 25℃ | 20℃ | 15 |
10℃ |
| Ts | 23.52℃ | 19.05℃ | 15.35℃ | 11.63℃ | 7.89℃ | 4.09℃ |
| Ts/Tg | 0.653 | 0.635 | 0.614 | 0.5815 | 0.526 | 0.409 |
As can be seen from table 1, when the indoor air dry bulb temperature Tg is decreased from 36 ℃ to 10 ℃ in the same 35% air humidity state, the ratio of the corresponding air wet bulb temperature Ts to the indoor air dry bulb temperature Tg is decreased from 0.653 to 0.409.
It can be understood that when the indoor air dry bulb temperature Tg is low, the air humidity value required for a human body to feel comfortable is higher, and when the indoor air dry bulb temperature Tg is high, the air humidity value required for a human body to feel comfortable is lower. For example, when the indoor temperature, i.e., the indoor air dry bulb temperature Tg, is in the range of 10 ℃ to 19 ℃, the air humidity range in which a human body feels comfortable is 50% -65%; and when the indoor temperature is in the range of 20-34 ℃, the range of air humidity comfortable for human body is 40-50%. When the indoor temperature is lower than 10 ℃, the human body feels cold mainly due to low temperature; when the indoor temperature is higher than 35 ℃, the human body feels heat mainly due to the high temperature. Humidification at room temperature above 35 c or below 10 c will be perceived as warmer or colder.
Therefore, the indoor temperature is divided into a plurality of preset temperature intervals from 10 ℃ to 34 ℃, preferably, the indoor temperature is divided into five preset temperature intervals from 10 ℃ to 34 ℃, which are respectively [ 10, 15 ], [ 15, 20 ], [ 20, 25 ], [ 25, 30 ]) and [ 30, 34 ], and a large number of experiments show that when the indoor temperature is in different preset temperature intervals, the upper and lower limits of the ratio of Ts to Tg corresponding to the air humidity range comfortable for the human body are respectively: t11 ═ 0.60; t12 ═ 0.75; t21 ═ 0.65; t22 ═ 0.77; t31 ═ 0.61; t32 ═ 0.73; t41 ═ 0.62; t42 ═ 0.75; t51 ═ 0.65; t52 ═ 0.77. The upper and lower limits of the ratio of Ts to Tg corresponding to different preset temperature intervals, that is, the first set value Ti1 and the second set value Ti2 corresponding to different preset temperature intervals are prestored in the humidifying device.
After the humidifying device is started, the dry bulb temperature Tg and the wet bulb temperature Ts of the indoor air are respectively obtained in real time through the dry bulb temperature sensor and the trial temperature sensor, and the ratio of the wet bulb temperature Ts to the dry bulb temperature Tg of the indoor air is obtained. Then, a preset temperature interval in which the indoor air dry bulb temperature Tg is located is judged, and a first set value Ti1 and a second set value Ti2 corresponding to the preset temperature interval, namely upper and lower limits of a ratio of Ts to Tg, are obtained. Finally, judging whether the current Ts/Tg is in the corresponding range of Ti1 and Ti2, if the Ts/Tg is larger than Ti1, indicating that the current air does not need to be humidified, and directly controlling a humidifying device to close the humidifying function; if Ts/Tg is less than Ti1, the current air humidity is low, the fan is controlled to operate, the humidifying device starts the humidifying function to humidify the air, whether Ts/Tg is greater than Ti2 is detected and judged in real time, and when Ts/Tg is greater than Ti2, the current air humidity is indicated to reach the upper limit of the comfortable humidity of the human body, and the humidifying device is controlled to stop the humidifying function. That is, the control humidification device humidifies the current air humidity from a lower limit that satisfies the human comfort humidity to an upper limit that satisfies the human comfort humidity, which is typically 10% higher than the lower limit of the human comfort humidity.
For example, when the indoor air dry bulb temperature Tg is in a preset temperature range of [ 10, 15 ]), if the Ts/Tg is judged to be less than 0.60(T11), the humidifying device is controlled to start the humidifying function, and until the Ts/Tg is greater than 0.75(T12), the humidifying device is controlled to stop the humidifying function. And when the temperature Tg of the indoor air dry bulb is less than 10 ℃ or more than 35 ℃, the humidifying operation of the humidifying device is not controlled no matter whether Ts/Tg is within the range of the corresponding first set value and second set value. Therefore, the method can automatically control the humidifying operation of the humidifying device when the air humidity is low, and automatically control the humidifying device to stop the humidifying operation when the air humidity is high, so that the indoor air humidity can be maintained in a humidity range comfortable for human bodies, and the cost of the humidifying device can be effectively controlled.
According to one embodiment of the invention, after the humidifying device is turned off, the humidifying device is controlled to be restarted every preset time interval T, the air wet bulb temperature Ts and the indoor air dry bulb temperature Tg are obtained, and the judgment is carried out again according to the air wet bulb temperature Ts and the indoor air dry bulb temperature Tg.
Specifically, after the humidifying device is stopped, the humidifying device is controlled to be automatically restarted again after a preset time interval T. And acquiring the wet air bulb temperature Ts and the dry air bulb temperature Tg of the indoor air after starting, and judging whether re-humidification is needed according to the ratio of Ts to Tg so as to continuously and stably humidify the indoor air and keep the indoor humidity within the comfortable humidity range of the human body.
The preset time interval T may be a preset constant value, such as 30 minutes, 60 minutes, etc. The preset time interval T may also be a dynamic time interval value associated with the current air humidity level. For example, when the current air humidity is high, the preset time interval T waiting for restarting is high, and when the current humidity is low, the preset time interval T waiting for restarting is low, so that the requirement of comfort humidity is better met. For example, the factory preset time interval T set by the humidifying device is 60 minutes, and when the humidifying device is started, if the current Ts/Tg is 10% smaller than the first set value Ti1, the preset time interval T of the next automatic start is reduced by 10% on the basis of 60 minutes (that is, the preset time interval of the next automatic start is 54 minutes); if the current Ts/Tg is 10% greater than the second set value Ti2, the preset time interval T for the next automatic start is extended by 10% from 60 minutes (i.e. the preset time interval for the next automatic start is 66 minutes).
In order to make the present invention more clearly understood by those skilled in the art, fig. 3 is a flowchart of a control method of a humidifying device according to one specific example of the present invention. As shown in fig. 3, the method may include the steps of:
s101, starting the humidifying device.
And S102, judging whether the water tank is lack of water or not through the water level detection switch. If yes, executing step S103; if not, step S104 is executed.
And S103, sending out water shortage prompt information.
And S104, detecting the dry bulb temperature Tg and the wet bulb temperature Ts of the indoor air in real time.
S105, judging whether Tg is less than 10 ℃. If yes, go to step S106; if not, step S107 is performed.
And S106, controlling the humidifying device to stop.
S107, judging whether Tg is more than 35 ℃. If yes, go to step S108; if not, step S109 is performed.
And S108, controlling the humidifying device to stop.
S109, judging the preset temperature interval to which the Tg belongs, and calculating the ratio of Ts to the Tg.
S110, acquiring a first set value Ti1 and a second set value Ti2 corresponding to the preset temperature interval to which Tg belongs.
S111, judging whether Ts/Tg < Ti1 exists or not. If not, executing step S112; if so, step S113 is performed.
And S112, controlling the humidifying device to stop.
And S113, controlling the humidifying operation of the humidifying device.
S114, judging whether Ts/Tg > Ti2 exists or not. If yes, step S115 is executed, and if no, the process returns to step S113.
And S115, controlling the humidifying device to stop.
In summary, according to the control method of the humidification device in the embodiment of the invention, after the humidification device is started, the indoor air dry bulb temperature is detected, the air wet bulb temperature in the humidification portion of the humidification device is detected, then the preset temperature interval to which the indoor air dry bulb temperature belongs is judged, the ratio of the air wet bulb temperature to the indoor air dry bulb temperature is obtained, and finally the humidification device is controlled to be turned on or turned off according to the preset temperature interval to which the indoor air dry bulb temperature belongs and the ratio. Therefore, according to the method, the automatic humidifying operation of the humidifying device can be controlled when the air humidity is low by detecting the air wet bulb temperature and the indoor air dry bulb temperature, and the automatic closing of the humidifying device is controlled when the air humidity is high, so that the indoor air humidity can be maintained in a humidity range comfortable for human bodies, and the method is simple in structure and low in cost.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A humidification device, comprising:
a housing;
the air inlet and the air outlet are arranged on the shell;
the humidifying part is arranged in the shell, the lower part of the humidifying part is soaked in the water tank, and the humidifying part sucks water in the water tank to the upper part through siphonage;
the fan is arranged in the shell and used for driving air to be sucked from the air inlet and to be exhausted from the air outlet after being humidified by the humidifying part;
a first temperature sensor for detecting an indoor air dry bulb temperature;
a second temperature sensor for detecting an air wet bulb temperature within the humidification portion;
the controller is used for judging a preset temperature range to which the indoor air dry bulb temperature belongs, acquiring a ratio of the air wet bulb temperature to the indoor air dry bulb temperature, and controlling the humidification device to be turned on or turned off according to the preset temperature range to which the indoor air dry bulb temperature belongs and the ratio, wherein the preset temperature ranges are multiple, each preset temperature range corresponds to a first set value and a second set value, the first set value is smaller than the second set value, and the first set value and the second set value corresponding to each preset temperature range are a lower limit value and an upper limit value of the ratio of the air wet bulb temperature to the indoor air dry bulb temperature corresponding to an air humidity range comfortable for a human body;
the controller is further configured to control the humidifier to restart at every preset time interval after the humidifier is turned off, acquire the air wet bulb temperature and the indoor air dry bulb temperature, and perform re-judgment according to the air wet bulb temperature and the indoor air dry bulb temperature, where the preset time interval is a dynamic time interval value associated with the ratio, where,
when the ratio is smaller than the first set value, reducing the preset time interval;
and when the ratio is larger than the second set value, increasing the preset time interval.
2. The humidifying device of claim 1, wherein,
when the ratio is smaller than a first set value corresponding to a preset temperature interval to which the indoor air dry bulb temperature currently belongs, the controller controls the humidifying device to be started;
and when the ratio is larger than a second set value corresponding to a preset temperature interval to which the indoor air dry bulb temperature currently belongs, the controller controls the humidifying device to be closed.
3. The humidification device of claim 1 or 2, wherein the first temperature sensor is a dry bulb temperature sensor and the second temperature sensor is a wet bulb temperature sensor, the dry bulb temperature sensor being disposed inside the air inlet and the wet bulb temperature sensor being disposed within the humidification portion.
4. The humidification device according to claim 2, wherein the plurality of preset temperature intervals correspond to a temperature range of 10 ℃ to 34 ℃ as a whole.
5. The humidification device according to claim 4, wherein the plurality of preset temperature intervals is five, wherein a first preset temperature interval is [ 10, 15 ], a second preset temperature interval is [ 15, 20 ], a third preset temperature interval is [ 20, 25 ], a fourth preset temperature interval is [ 25, 30 ], and a fifth preset temperature interval is [ 30, 34 ].
6. A control method of a humidifying device is characterized by comprising the following steps:
after the humidifying device is started, detecting the temperature of the indoor air dry bulb and detecting the temperature of the air wet bulb in the humidifying part of the humidifying device;
judging a preset temperature interval to which the indoor air dry bulb temperature belongs;
acquiring the ratio of the air wet bulb temperature to the indoor air dry bulb temperature;
controlling the humidification device to be opened or closed according to preset temperature intervals and the ratio to which the indoor air dry bulb temperature belongs, wherein the preset temperature intervals are multiple, each preset temperature interval corresponds to a first set value and a second set value, the first set value is smaller than the second set value, and the first set value and the second set value corresponding to each preset temperature interval are the lower limit value and the upper limit value of the ratio of the air wet bulb temperature to the indoor air dry bulb temperature corresponding to the air humidity range comfortable for a human body;
controlling the humidifier to restart at every preset time interval after the humidifier is turned off, acquiring the air wet bulb temperature and the indoor air dry bulb temperature, and performing re-judgment according to the air wet bulb temperature and the indoor air dry bulb temperature, wherein the preset time interval is a dynamic time interval value associated with the ratio, wherein,
when the ratio is smaller than the first set value, reducing the preset time interval;
and when the ratio is larger than the second set value, increasing the preset time interval.
7. The control method of a humidifying device according to claim 6, wherein,
when the ratio is smaller than a first set value corresponding to a preset temperature interval to which the indoor air dry bulb temperature currently belongs, controlling the humidifying device to be started;
and when the ratio is larger than a second set value corresponding to a preset temperature interval to which the indoor air dry bulb temperature currently belongs, controlling the humidifying device to be closed.
8. The control method of a humidification device according to claim 6 or 7, wherein the indoor air dry bulb temperature is detected by a dry bulb temperature sensor provided inside the air intake and the air wet bulb temperature is detected by a wet bulb temperature sensor provided inside the humidification portion.
9. The control method of a humidifying device according to claim 7, wherein the temperature range corresponding to the entirety of the plurality of preset temperature sections is 10-34 ℃.
10. The control method of a humidifying device according to claim 9, wherein the plurality of preset temperature intervals is five, wherein a first preset temperature interval is [ 10, 15 ], a second preset temperature interval is [ 15, 20 ], a third preset temperature interval is [ 20, 25 ], a fourth preset temperature interval is [ 25, 30 ], and a fifth preset temperature interval is [ 30, 34 ].
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| CN109030560B (en) * | 2018-08-08 | 2024-01-16 | 湖南元亨科技股份有限公司 | High-precision dry and wet ball temperature equipment capable of melting ice in same lifting manner |
| CN111853972A (en) * | 2019-04-24 | 2020-10-30 | 珠海格力电器股份有限公司 | Humidifying structure, humidifying equipment, air conditioner and control method of humidifying structure |
| CN113551401B (en) * | 2021-07-19 | 2022-06-14 | 珠海格力电器股份有限公司 | Temperature and humidity detection device and method and evaporative refrigeration equipment |
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