JP4684756B2 - humidifier - Google Patents

Description

  The present invention relates to a humidifier for preventing indoor drying.

  As shown in FIG. 6, the conventional humidifier includes a humidity detecting means 21 for detecting the humidity in the room, a temperature detecting means 22 for detecting the temperature in the room, a humidity setting means 23 for setting the target humidity, a blower and a heater. A humidifying unit 24 configured to generate humidified air, and a control unit 25 for controlling the operation of the humidifying unit 24. The humidification amount is determined from the humidity detected by the humidity detecting unit 21 and the set target humidity. When the control unit 25 controls the operation of the humidifying unit 24 based on the humidification amount, the humidified air is released into the room, and the humidifying operation is performed so that the indoor humidity becomes the target humidity. ing.

In addition, humidity is closely related not only to the amount of moisture in the air but also to room temperature, and when the room temperature is high, it tends to be excessively humidified. Therefore, when the target humidity is set high, condensation may occur. Therefore, when determining the humidification amount, the room temperature is also taken into account. For example, the temperature detection means 22 detects the indoor temperature, and when the detected room temperature is equal to or higher than a predetermined value, the target humidity is corrected to be lowered and the operation of the humidifying means 24 is controlled to suppress dew condensation. Yes.
Japanese Patent No. 2774823 Japanese Patent No. 2658656

  By the way, such a humidifier is often used during the winter season when indoor air is dried by using a heater. Condensation is a phenomenon in which moisture in the air becomes water and adheres to the surface of an object due to a decrease in temperature, and often occurs in windows and the like when a heater is used. This is because heating can make a large difference between the room temperature and the outside air temperature, so that the indoor air is cooled across the window, the temperature drops, and moisture contained in the air becomes water and adheres to the inside of the window Because.

  In other words, although the difference between the room temperature and the outside air temperature has a great influence on the occurrence of dew condensation, the conventional control seems to correct the target humidity set based on the room temperature. The outside temperature was not considered at all.

  Therefore, even if the condensation cannot be effectively suppressed, or even when there is little difference from the outside temperature and no condensation occurs, the target humidity is corrected to be low because the detected indoor temperature is high. As a result, sufficient humidification could not be obtained.

  This invention is for solving the said subject, and it aims at providing the humidifier which can suppress dew condensation effectively, without producing humidification shortage.

The present invention includes a humidity detection unit that detects indoor humidity, a temperature detection unit that detects a room temperature, and a control unit that controls a humidification amount so that the humidity detected by the humidity detection unit becomes a target humidity. , comprising an outside air temperature estimation means for estimating the outside temperature, set the target humidity based on the estimated outside air temperature and the current room temperature have a operation mode for performing humidification operation, the ambient temperature estimation means, said temperature The humidifier is characterized in that the room temperature detected by the detecting means is monitored and the outside air temperature is estimated from the lowest temperature detected within a predetermined period in the operation mode .

The outside air temperature estimating means sets the estimated value of the outside air temperature to the lowest value regardless of the room temperature detected by the temperature detecting means until the predetermined period elapses after the power is turned on. The humidifier according to claim 1, characterized in that it is a humidifier.

  By configuring as described above, the humidification amount is set in consideration of the difference between the indoor temperature and the outside air temperature that affects the occurrence of condensation, so an operation mode that can effectively suppress condensation without causing insufficient humidification is provided. It becomes a humidifier equipped.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode of the present invention, which is considered preferable, will be briefly described by showing the effects of the present invention.

  The humidifier of the present invention is provided with an operation mode in which the outside air temperature is estimated and the humidification amount is controlled by judging whether or not condensation is likely to occur from the difference between the estimated outside air temperature and the room temperature. When this operation mode is selected, the target humidity is set based on the outside air temperature and the room temperature, and the humidification operation is performed.

  The situation where condensation is likely to occur here is, for example, a case where the room temperature is high using a heater during the winter, and the difference between the outside temperature and the room temperature is large. Assumes that. Therefore, when the difference between the estimated outside air temperature and the room temperature is large, the humidification operation is performed so as to reduce the humidification amount by setting the target humidity low to suppress the occurrence of condensation.

  On the other hand, when the difference between the outside air temperature and the room temperature is small, condensation is unlikely to occur.Therefore, by setting the target humidity higher than when the temperature difference is large and increasing the humidification amount, It becomes possible to humidify.

  Therefore, by setting the target humidity based on the outside air temperature and the room temperature, dew condensation can be effectively suppressed without causing insufficient humidification.

  Specific embodiments of the present invention will be described with reference to the drawings.

  1 and 2 are diagrams showing the configuration of a humidifier according to an embodiment, and the humidifier main body 1 is provided with various switches for inputting an operation start / stop instruction, set humidity, and the like. An operation panel 2 is provided, and a blower outlet 3 for releasing air humidified in the main body 1 into the room is provided below the operation panel 2, that is, in front of the main body 1. Reference numeral 4 denotes a suction port for taking indoor air into the main body 1. The suction port 4 is provided with humidity detection means 5 for detecting indoor humidity and temperature detection means 6 for detecting room temperature. It has been.

  Inside the main body 1, a water tank 8 for storing a constant amount of water supplied from a water supply tank 7 detachably provided, and water stored in the water tank 8 disposed in the water tank 8 is absorbed and moistened. Vaporization filter 9, blower 10 disposed between the blower 10 and the vaporization filter 9, which is taken into the room through the outlet 3 as humidified air that has passed through the humidified vaporization filter 9 through the intake port 4 and is humidified. Is provided with a warm air heater 11 for heating the air taken in from the suction port 4.

  The white arrows in the figure represent the flow of air taken into the main body 1, and the shaded arrows represent the flow of humidified air containing moisture.

  As shown in FIG. 3, the operation panel 2 is set by an operation switch 12 for instructing operation / stop of the humidifier, a humidity setting means 13 for setting a target humidity, an operation switching means 14 for switching the operation method, and a humidity setting means 13. The set humidity display unit 15 for displaying the target humidity thus selected and the operation display unit 16 for displaying the operation method selected by the operation switching means 14 are provided.

  The target humidity is selected from “50%”, “60%”, “70%”, and “salary humidification”, and the target humidity is switched every time the humidity setting means 13 is operated. The LED lamps provided in the display unit 15 are configured to light up in order.

  Here, “salarily humidification” is to control the humidification amount by setting the target humidity so as to humidify the room while suppressing the occurrence of dew condensation. Based on the estimated outside air temperature and room temperature, the target humidity is determined in the range of 50% to 65% based on FIG. In other words, when the difference between the outside air temperature and the room temperature is large, condensation is likely to occur.Therefore, the humidification operation is performed so as to suppress the occurrence of condensation by setting the target humidity low, while the outside air temperature and the room temperature. When the difference is small, condensation is unlikely to occur, so the target humidity is set to be high and the operation is performed to humidify the room.

  The driving method is selected from among “automatic”, “power saving”, “silent”, and “continuous”, and the driving method is switched each time the driving switching means 14 is operated. It is comprised so that the LED lamp provided in can be lighted in order.

  FIG. 5 is a block diagram of the humidifier, and the control means 17 for controlling the operation of the humidifier is the room humidity detected by the humidity detection means 5, the room temperature detected by the temperature detection means 6, and the humidity setting means 13. The humidification amount is determined from the target humidity set by the outside air temperature and the outside air temperature estimated by the outside air temperature estimating means 18, and the air volume of the blower 10 and the energization of the warm air heater 11 are controlled.

  The outside air temperature estimating means 18 monitors the room temperature detected by the temperature detecting means 6, stores the minimum room temperature over the past three days, and estimates the approximate outside air temperature from this minimum room temperature.

  Next, the operation in the above configuration will be described.

  First, when water is put into the water supply tank 7 and inserted into the main body 1 and installed at the designated position, a fixed amount of water flows out of the water supply tank 7 and is stored in the water tank 8. The installed vaporization filter 9 sucks up the water in the water tank part 8 by capillary action and gets wet.

  In this state, when the operation switch 12 of the operation panel 2 is turned on, the target humidity is selected by the humidity setting means 13, and the operation method is selected by the operation switching means 14, the blower 10 is started and the room Air is taken into the main body 1 of the humidifier through the suction port 4, and the humidity and temperature in the room are detected by humidity detection means 5 and temperature detection means 6 provided in the vicinity of the suction port 4. Is sent to the control means 17.

  Here, when either “50%”, “60%”, or “70%” is selected as the target humidity, the control means 17 is detected by the target humidity set by the humidity setting means 13 and the humidity detection means 5. The humidity difference is calculated, and the air flow rate of the blower 10 and the energization rate of the warm air heater 11 are determined based on the difference, and the humidification operation is performed.

  If “salarily humidification” is selected, the control means 17 determines the target based on the table in FIG. 4 from the outside air temperature estimated by the outside air temperature estimating means 18 and the room temperature detected by the temperature detecting means 6. Humidity is determined, the difference between this target humidity and the detected humidity detected by the humidity detecting means 5 is calculated, the air flow rate of the blower 10 and the energization rate of the hot air heater 11 are determined, and the humidification operation is performed.

  For example, when the estimated outside air temperature is 0 ° C. and the room temperature is 25 ° C., the target humidity is set to 50% from FIG. Even if the outside air temperature is estimated to be the same 0 ° C., the target humidity is set to 60% when the room temperature is 16 ° C. That is, even if the estimated outside air temperature is the same 0 ° C., the temperature difference between the outside air temperature and the outside air temperature is larger when the room temperature is 25 ° C. and condensation tends to occur, so the humidification amount must be reduced. Will be set low.

  In this embodiment, the outside air temperature estimating means 18 has an outside air temperature of 0 ° C. when the minimum temperature in the past three days is less than 10 ° C., and an outside air temperature of 5 ° C. when the minimum room temperature is 10 ° C. or more and less than 15 ° C. When the temperature is 15 ° C. or higher, it is assumed that the outside air temperature is 10 ° C. However, the present invention is not limited to this, and finer control is possible by narrowing the interval between the outside air temperature estimation sections.

  The blower 10 and the warm air heater 11 are controlled by the determined air volume and the energization rate, and the indoor air taken into the main body 1 by the rotation of the blower 10 is heated by the warm air heater 11 and then downstream. The moisture contained in the vaporization filter 9 is vaporized when passing through the vaporization filter 9, and the humidified air containing moisture enters the room through the outlet 3. It is released and the indoor air is humidified.

  By the way, since the outside air temperature is estimated based on the lowest room temperature of the past 3 days, the data required for estimating the outside air temperature is not obtained within 3 days after the power is turned on, so the appropriate humidity is not set. For example, when the outside air temperature is estimated to be higher than the actual temperature, the target humidity is set high, so that the amount of humidification increases and condensation may occur. Therefore, the outside temperature was estimated to be the lowest 0 ° C. within 3 days after the power was turned on. That is, by estimating the outside air temperature to be low, the target humidity is set to be low and control is performed to suppress the occurrence of condensation.

It is a longitudinal cross-sectional view of the humidifier of this invention. It is A-A 'sectional drawing in FIG. It is an operation plate of the humidifier of the present invention. It is a table | surface for determining target humidity with external temperature and room temperature. It is a block diagram of the humidifier of the present invention. It is a block diagram of the conventional humidifier.

Explanation of symbols

5 Humidity detection means 6 Temperature detection means 17 Control means 18 Outside air temperature estimation means

Claims (2)

Humidity detection means for detecting indoor humidity, temperature detection means for detecting indoor temperature, control means for controlling the humidification amount so that the humidity detected by the humidity detection means becomes the target humidity, and the outside air temperature an outer air temperature estimation means for estimating, by setting the target humidity based on the estimated outside air temperature and the current room temperature have a operation mode for performing humidification operation, the ambient temperature estimation means detected by said temperature detecting means The humidifier is characterized in that the room temperature is monitored and the outside air temperature is estimated from the lowest temperature detected within a predetermined period in the operation mode . The outside air temperature estimating means sets the estimated value of the outside air temperature to the lowest value regardless of the room temperature detected by the temperature detecting means until the predetermined period elapses after the power is turned on. The humidifier according to claim 1.

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