JP2658656B2 - humidifier - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidifier for automatically performing appropriate humidification control according to the temperature and humidity in a room.

[0002]

2. Description of the Related Art Generally, a conventional humidifier employs a method in which a constant amount of humidification is always performed according to a set humidification amount regardless of the indoor humidity. This was performed regardless of the situation, and a problem such as excessive humidification sometimes occurred.

For this reason, the humidification amount needs to be appropriately adjusted by comprehensively judging the temperature and humidity of the room to be humidified, the set humidity of the humidifier side, etc. so as not to cause overhumidification. There is.

Therefore, a humidifier as shown in FIG. 5 has been proposed as a conventional example. FIG. 5 shows Japanese Patent Application Laid-Open No. 62-17214.
FIG. 1 is a simplified block diagram of FIG. 1 of a humidifier with a humidity sensor disclosed in Japanese Patent Application Publication No. 4 (JP-A) No. 4 (1999)), wherein 21 is a humidity sensor, 22 is a humidity judgment circuit, 23 is a drought display circuit, 24
Is a vibrator drive circuit, and 25 is a power supply.

[0005] The conventional humidifier configured as described above,
The humidity sensor 21 detects the humidity in the room, compares the detected value with the desired humidity set by the user, and directly controls the humidification amount based on the difference.
4 was running.

[0006]

As described above, in the conventional humidifier, the humidification amount is determined by the difference between the detection signal from the humidity sensor 21 and the preset humidity value. There is a problem that the amount frequently changes, and depending on the size of the room and the degree of airtightness, excessive humidification occurs. Further, the humidity in the room is closely related to the room temperature, and there is a tendency that the humidity becomes higher when the temperature becomes higher. However, in many cases, the room temperature is not considered at all in the conventional one.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and automatically humidifies the humidification at a humidification amount corresponding to the room temperature and the set humidity. The aim is to obtain a humidifier whose quantity can be controlled quickly.

[0008]

A humidifier according to the present invention comprises: a humidity sensor for detecting a current humidity in a room; a humidity setting means for setting a target humidity; a room temperature sensor for detecting a room temperature; The generated steam generator compares the detection signal from the room temperature sensor with the set humidity set by the humidity setting means, automatically selects a predetermined humidification amount from the humidity difference, and Humidification control means for controlling the amount of water vapor generated by the generator, the humidification control means based on the room temperature detected by the room temperature sensor and the set humidity at that time, or within a predetermined time detected by the room temperature sensor When the change in the room temperature is equal to or larger than a predetermined value, the predetermined humidification amount is corrected.

[0009]

According to the humidifier of the present invention, the humidification amount obtained from the difference between the detection signal from the humidity sensor and the set humidity set by the humidity setting means is compared with the detection signal from the room temperature sensor and the humidity setting means. The humidification amount is corrected based on the set humidity set at that time or when the amount of change in room temperature within a predetermined time detected by the room temperature sensor is equal to or more than a predetermined value.

[0010]

[Embodiment 1] FIG. 1 is a block diagram showing a main configuration of a humidifier showing one embodiment of the present invention, FIG. 2 is a flowchart showing an operation program of the humidifier stored in a microcomputer, and FIG.
Is a humidification amount rank table showing an example of selecting a humidification amount according to a difference between indoor humidity and a set humidity, and FIG. 4 is a humidification amount correction table showing an example of correcting the humidification amount in relation to the set humidity and room temperature. It is.

In FIG. 1, 1 is a humidity sensor for detecting indoor humidity, 2 is a room temperature sensor for detecting indoor temperature, 3
Is a humidity setting means for inputting a set humidity, and 4 is a microcomputer, which includes a humidification control means 5 and a display control means 7 for controlling a display mode of the display 6. 8 is a steam generator.

Next, the operation of the above embodiment will be described with reference to the flowchart shown in FIG. First, when a power switch (not shown) is turned on, the microcomputer 4 starts a temperature / humidity reading step 11. This step 11 is to detect the indoor humidity and temperature by the humidity sensor 1 and the room temperature sensor 2.

Next, in step 12, it is determined whether the room temperature read in step 11 is within an appropriate temperature range. Specifically, it is determined whether the temperature is 0 ° C. or lower or 40 ° C. or higher. This is because when the room temperature is 0 ° C. or less, the water in the steam generator 8 is frozen and it is not preferable to generate steam. Because they will be the same. Also, if the temperature is 40 ° C. or higher, it is a phenomenon of an abnormal situation that does not normally occur. Therefore, if it is determined in this step that the room temperature is 0 ° C. or lower and 40 ° C. or higher, the process proceeds to step 13 and the humidification is immediately stopped. ) Flashes rapidly to indicate that the humidification is stopped normally. This display informs the user of the humidification stop state. As a result, a failure determination or the like can be clearly recognized.

On the other hand, if it is determined in step 12 that the room temperature is not below 0.degree. C. or above 40.degree. C. and is within the proper temperature range, the process proceeds to step 14, where the user set by the humidity setting means 3 desires. Read the set humidity. Next, the process proceeds to step 15, where the current humidity and the set humidity are compared, and a rank of the humidification amount is selected based on the magnitude of the difference. The relationship between the difference between the current humidity and the set humidity and the humidification amount rank is determined in advance as shown in FIG.
That is, in the case of the humidification amount rank “2”, the current humidification is 0 to 2% higher than the set humidity, and the humidification amount is 200 cc.
/ H, and is operated with a humidification amount that can maintain the current humidity substantially. On the other hand, the humidification amount rank “4” is a case where the set temperature is higher than the current humidity by 2% or more, and the humidification amount is operated at 400 cc / h.

In this embodiment, the cycle of selecting the humidification amount rank is performed in units of about 5 minutes. Further, the humidity in the room has a close relationship with the room temperature, and when the temperature increases, the humidity tends to be excessive. Therefore, in step 17, the humidification amount is corrected based on the correspondence between the room temperature and the set humidity. In this embodiment, the correction of the humidification amount based on the correspondence between the set humidity and the room temperature is determined in advance as shown in FIG. For example, if the set humidity is 40% and the room temperature is 20 ° C,
The rank correction of the humidification amount is “0”, and the operation is performed according to the relationship between the humidity and the humidification amount shown in FIG.

When the set humidity is 60% and the room temperature is 20 ° C., the humidification rank correction is “2”, which is corrected by two ranks less than the relationship between the humidity and the humidification shown in FIG. . In this case, for example, if the current humidity is 0 to 2% lower than the set humidity, the operation is performed at rank 3 without correction, but the operation is performed at rank 1, that is, at a humidification amount of 100 cc / h because the correction is made two ranks less. You. This shifts the relationship between humidity and rank in FIG. 3 in a direction in which the humidification amount of two ranks is suppressed. As shown in FIG. 4, the shift amount increases as the set humidity is higher and the room temperature is higher. In order to operate with a reduced humidification amount, the set humidity is automatically corrected to be lower based on the apparent room temperature. Will be.
Thereby, appropriate humidification can be performed according to the room temperature with respect to each set humidity set by the user, and dew condensation due to excessive humidification can be reduced.

Further, if the room temperature changes suddenly, this also causes excessive humidification. For example, if the heater is stopped when the heater is operated in combination with the heater, the temperature drops rapidly and the system becomes over-humidified. Therefore, even within the selection cycle of the humidification amount rank, the change amount of the room temperature is equal to or more than a predetermined value (
In the case of a rapid change), the humidification amount is corrected (the direction in which humidification is suppressed). That is, when there is a sharp drop in temperature with respect to the humidification rank determined in FIGS. 3 and 4, the humidification amount is further reduced by one rank level to operate. Finally, the process proceeds to step 18, where the display unit 6 displays the humidification state.

[0018]

As described above, according to the present invention, a predetermined humidification amount is selected based on the difference between the current humidity detected by the humidity sensor and the humidity set by the user by the humidity setting means. In addition, based on the correspondence between the current room temperature and the set humidity, or when the amount of change in room temperature within a predetermined time detected by the room temperature sensor is equal to or more than a predetermined value, the humidification amount is corrected to a predetermined humidification amount. ,
Appropriate humidification can be performed without complicating the operation and avoiding problems such as excessive humidification regardless of the size and degree of sealing of the room.

[Brief description of the drawings]

FIG. 1 is a block diagram of a humidifier according to one embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of the humidifier according to one embodiment of the present invention.

FIG. 3 is a humidification amount rank table of a humidifier according to one embodiment of the present invention.

FIG. 4 is a humidification amount correction table of the humidifier according to one embodiment of the present invention.

FIG. 5 is a block diagram of a conventional humidifier.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Humidity sensor 2 Room temperature sensor 3 Humidity setting means 4 Humidification control means

Claims (2)

(57) [Claims] 1. A humidity sensor for detecting a current humidity in a room, a room temperature sensor for detecting a room temperature, a humidity setting means for setting a target humidity, a steam generator for generating steam, and detection by the humidity sensor. Humidification control means for comparing the current humidity with the set humidity set by the humidity setting means, selecting a predetermined humidification amount from the humidity difference, and controlling the generation amount of steam by the steam generation device. A humidifier, wherein the humidification controller corrects the predetermined humidification amount based on a room temperature detected by the room temperature sensor and a set humidity at that time . 2. The humidification control means is provided by the room temperature sensor.
The detected change in room temperature is stored, and the amount of change
The correction of the humidification amount is performed when the
The humidifier according to claim 1, wherein