JP2012242063A - Humidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a function for determining a residual quantity of water, and a function for providing water supply information in a direct heating type humidifier.SOLUTION: This humidifier includes a liquid container in which water is stored, a heating means for heating water in the liquid container, a humidification control means for driving to turn on/off the heating means to control humidification, and a water temperature detecting means for detecting a water temperature in the liquid container. In the humidifier, a change of the water temperature in the liquid container is detected by the water temperature detecting means, and a residual quantity of water is determined depending on the lowering of the water temperature within a time when the heating means is turned off by the humidification control means. Accordingly, it is possible to surely solve such a problem as a loss of power consumption by accidental heating, the shortening of the life of the liquid container by the accidental heating, the sticking of chlorine components to an internal wall of the liquid container in the case that the residual quantity of water is first determined as zero in an accidental heating state as before.

Description

  The present invention relates to a configuration of a direct heating water vapor generating humidifier.

  In recent years, various types of humidifiers used for humidifying indoor air have been developed. By releasing the water vapor obtained by the heating-type water vapor generating means into the room (or living space). Steam generating humidifiers that perform humidification are frequently used.

  Such a humidifying steam generator is generally provided with a boiler for heating water, heating means for heating the boiler, and a water supply tank for supplying water to the boiler. The water supply tank is configured so that a predetermined amount of water can be constantly supplied, and water vapor generated by heating the boiler section is discharged into the room.

  In the case of such a boiler-type water vapor generating humidifier, water vapor is generated in the boiler section, so that a calcium component such as calcium contained in water accumulates in the boiler. However, since the boiler has a fixed structure that is not normally removable, it is difficult to remove the chalk component.

  In addition, since the boiler generally has a small capacity so as to easily boil, there is also a drawback that the amount of water vapor generated cannot be increased.

  Therefore, recently, for example, a liquid container for containing water, an electric heating means for directly heating the water in the liquid container, and a humidification control means for controlling humidification by driving the electric heating means ON and OFF. And a water temperature detection means for detecting the water temperature in the liquid container, and by detecting the water temperature in the liquid container by the water temperature detection means, by driving the heating means ON, OFF by the humidification control means, There is provided a direct heating type steam generating humidifier configured to perform humidification at a predetermined level (see Patent Document 1).

  According to such a direct heating type steam generating humidifier that directly heats the water in the liquid container, the above-described problems are substantially solved.

Japanese Patent No. 3060967 (see pages 2 to 4 of the specification, FIG. 1 and FIG. 2)

  By the way, in the case of the direct heating type humidifier as described above, in order to avoid empty cooking, it is necessary to detect and determine the remaining water amount, and when the remaining water amount is equal to or less than a predetermined amount, it is necessary to notify the water supply.

  Regarding the detection determination of the residual water amount, in the case of the above direct heating type, for example, the residual water amount zero is detected as a parameter that the detection temperature of the water temperature sensor has suddenly increased due to the cooking condition for a certain time, Although a method for notifying water supply is adopted, in such a method, loss of power consumption due to empty cooking, a decrease in container life, and a chalk component sticks to the inner wall of the liquid container, making it difficult to remove. Problems arise.

  Further, in the configuration of the conventional boiler type, a float is generally used as the water level detection means, but in this case, a complicated structure exists in the lower part of the lid and the liquid container, and maintenance is performed. In addition to deteriorating the properties, if the chloro component adheres to the float portion, the detection performance deteriorates and the reliability is lacking.

  The present invention has been made in order to solve such a problem. The water temperature detection means detects a change in the water temperature in the liquid container, and the remaining water amount is determined from the degree of decrease in the water temperature within the heating means OFF time by the humidification control means. It is an object of the present invention to provide a direct heating type humidifier that can determine the above.

  In order to achieve the above object, each invention of the present application includes the following problem solving means.

(1) Invention of Claim 1 A humidifier according to the present invention comprises a liquid container for containing water, a heating means for heating the water in the liquid container, and humidification for controlling humidification by driving the heating means ON and OFF. A humidifier comprising a control means and a water temperature detection means for detecting the water temperature in the liquid container, wherein the water temperature detection means detects a change in the water temperature in the liquid container, and the humidification control means It is characterized in that the remaining water amount is determined from the degree of decrease in the water temperature within the heating means OFF time.

  According to such a configuration, the remaining water amount is determined from the degree of decrease in the water temperature within the OFF time of the hot water heating means ON / OFF control by the humidification control means.

  Therefore, the loss of power consumption due to empty cooking, reduction in the life of liquid containers due to empty cooking, and the use of chalk components on the inner wall of the liquid container, such as when the amount of remaining water is determined to be zero only after becoming an empty cooking state as in the past. Problems such as sticking are reliably eliminated.

  Further, since the remaining water amount can be determined by a complete non-contact method using only the humidification control means and the water temperature detection means, a special structure such as a conventional float method is not required in the liquid container, and the liquid container and the lid Handling and maintenance of body parts are also facilitated.

  Of course, there is no problem that the chalk component adheres to the float portion.

(2) Invention of Claim 2 A humidifier according to the present invention comprises a liquid container for containing water, a heating means for heating the water in the liquid container, and humidification for controlling humidification by driving the heating means ON and OFF. A humidifier comprising a control means and a water temperature detection means for detecting the water temperature in the liquid container, wherein the water temperature detection means detects a change in the water temperature in the liquid container, and the humidification control means The remaining water amount is determined from the degree of decrease in the water temperature within the heating means OFF time, and when the remaining water amount is equal to or less than a predetermined amount, water supply notification is performed.

  According to such a configuration, the residual water amount is determined from the degree of decrease in the water temperature within the OFF time of the hot water heating means ON / OFF control by the humidification control means, and when the residual water amount is equal to or less than the predetermined amount, water supply notification is performed. It is configured.

  Therefore, as in the conventional case, when the remaining water amount is determined to be zero only when the state of empty cooking is performed and water supply notification is made, loss of power consumption due to empty cooking, decrease in life of liquid container due to empty cooking, liquid container Problems such as the sticking of the chalk component to the inner wall are surely solved.

  In addition, since it is possible to determine the amount of remaining water and perform water supply notification with a complete non-contact method using only the humidification control means and the water temperature detection means, a special structure such as a conventional float method is not required in the liquid container. In addition, handling and maintenance of the liquid container and the lid portion are facilitated.

  Of course, there is no problem that the chalk component adheres to the float portion.

  As a result, according to the humidifier of the present invention, it is possible to provide a direct heating type humidifier that does not require a float as in the prior art and does not cause adhesion of scales due to empty cooking at low cost.

It is a perspective view which shows the whole structure in the power stand integrated state of the humidifier which concerns on embodiment of this invention. It is a perspective view which shows the whole structure in the state isolate | separated from the power supply stand of the humidifier. It is a longitudinal cross-sectional view (AA of FIG. 1) which shows the structure of the humidifier. It is an expanded sectional view (X section enlarged view of FIG. 3) which shows the structure of the container main body side bottom part of the humidifier. It is a control circuit diagram of the humidifier. It is a time chart which shows the content of the humidification control of the humidifier. It is a time chart which shows the content of the water supply detection control of the humidifier. It is a data table which shows the water temperature difference of this time and the last time at the time of water supply detection of the humidifier. It is a data table which shows the difference of boiling detection temperature at the time of water supply detection of the humidifier, and water temperature.

  Hereinafter, the configuration and operation of the humidifier according to the embodiment of the present invention will be described in detail with reference to FIGS.

  First, FIGS. 1 to 5 show the configuration of the entire power supply base and the container main body of the humidifier according to the embodiment of the present invention and the main part.

<Construction of container body, power supply, control circuit, etc.>
That is, the humidifier 1 of this embodiment includes a container main body 1A provided with a liquid container 3 for hot water storage inside, a lid body 2 for opening and closing the upper side opening of the container main body 1A, and the inside of the container main body 1A. The liquid container 3 includes a C-shaped water heater (seeds heater) 4a that heats the liquid container 3 when it is heated, and a power base 1B on which the container body 1A is detachably mounted.

  The container body 1A includes a synthetic resin dish-shaped bottom case 16a, a cylindrical outer case 16b made of the same synthetic resin integrated on the top of the bottom case 16a, and an upper end 16c side of the outer case 16b. The upper end (opening edge) of the side wall portion 3b of the liquid container 3 is supported via a container locking portion 11a inside the shoulder member 11 and is integrally formed around the entire periphery. Yes.

  The liquid container 3 is formed of, for example, a single-plate stainless steel bottomed cylindrical tube, and the water heater 4a is provided on the outer periphery of the bottom surface of the bottom 3a so as to extend in a C shape in the circumferential direction. It has been.

  In this case, the hot water heater 4a is formed with a flat C-shaped heater burying convex portion 4c having a predetermined height on the lower side of the inverted trapezoidal cross section on the outer periphery of the heater plate 4b having a flat central portion and good heat conductivity. The heater is embedded in the heater burying convex portion 4c. At both ends thereof, power supply lead terminals for connecting power supply leads, which are power supply wirings, are provided so as to protrude from both ends of the heater embedding convex portion 4c by a predetermined length (not shown).

  As shown in the figure, the bottom case 16a is fixed by fitting a cylindrical peripheral portion standing above a predetermined height to the inside of the lower edge of the outer case 16b. Includes a sleeve-shaped power receiving coupler 10 which will be described later, and outer peripheral portions of the power receiving coupler 10 are provided with engaging convex portions 16d, 16d and 16d for engaging concave portions 15c, 15c and 15c on the power supply base 1B which will be described later. .

  Then, on the lower surface side of the heater plate 4b, for example, as shown in detail in FIG. 4, the heater plate 4b is located at the upper part of the bottom case 16a and at the inner peripheral side central part of the heater embedding convex part 4c. , A rod-shaped electrode 10d for power reception, a plurality of sleeve-shaped electrodes 10b, 10c, 10c,... And a cylindrical power-receiving coupler 10 made of electrical connection means such as a sleeve-shaped insertion / removal guide tube 10a. In addition, a first power supply substrate (a specific structure is not shown) A is provided.

  Then, AC power is supplied from the power supply circuit portion (see FIG. 5) of the second power supply board B on the power supply stand 1B described below through the power receiving coupler 10.

  The heater plate 4b is cut out in a part of the space 4d between the upper end of the power receiving coupler 10 and the bottom 3a of the liquid container 3, and a heat transfer member 53 having an inverted V-shaped cross section is provided instead of the heater plate 4b. It is provided so as to be joined to the bottom 3a. Then, a temperature sensor (water temperature sensor) TS1 for detecting a water temperature T made of a thermistor is installed in a groove portion having a reverse V-shape on the lower surface side.

  The temperature sensor TS1 fits the pressing member 17 into the central opening portion of the support plate 51 fixed to the mounting boss 50 portion provided in a part of the heater plate 4b, while the lower side of the pressing member 17 The urging spring 52 is installed on the front end and is supported by the front end side pressing portion 17a. Thus, the temperature sensor TS1 effectively detects the temperature T of the water in the liquid container 3.

  The support plate 51 constitutes a part of the power supply board A described above.

  That is, in the first power supply board A part, as shown in FIG. 5, for example, as a separate circuit connected to the control unit 40 described later, in addition to the above-described temperature fuse F1 for the water heater 4a and the bimetal switch VS, A temperature sensor (water temperature sensor) TS1 including a thermistor for detecting the temperature T of the water in the liquid container 3 is installed.

  Next, the lid body 2 includes a synthetic resin upper plate 2a, a synthetic resin lower plate 2b having an outer peripheral edge coupled to the upper plate 2a, and a metal inner cover 2c below the synthetic resin. It is detachably fitted (helicoidal engagement) in the vertical direction with respect to the opening inside the shoulder member 11.

  Between the said upper board 2a and the lower board 2b, it forms in the heat insulation space which can be filled with a heat insulating material as needed, and the following vapor | steam discharge passages are formed over the whole. .

  That is, for example, as shown in FIGS. 1 to 3, the lid 2 has an arc shape in a plan view that discharges steam for humidification indoors and a grill structure steam discharge port 7 a, and the steam discharge port 7 a. The liquid which spreads in the horizontal direction from the steam inlet 8a of the inner cover 2c and the valve chamber 8c provided with the overturn stop valve 8b from the large-capacity cooling space 7 which depressurizes and cools the steam released from the outside air. Water that has reached the return space 8d and is condensed by being cooled under reduced pressure in the liquid return space 8d portion flows down to the valve chamber 8c side and is collected in the liquid container 3, while only the necessary vapor component is covered by the lid. A detour passage 8e is provided in the liquid container 3 that is widely detoured in the entire circumferential direction of the body 2 to reduce the temperature as much as possible and then flows out near the bottom of the cooling space 7 described above. The above steam From the steam inlet 8a of the bar 2c, their valve chambers 8c, the liquid return space 8d, bypass passage 8e, through the cooling space 7, after the temperature is lowered, is finally discharged from the vapor discharge port 7a toward the room.

  Reference numeral 8 f in FIG. 3 is a steam outlet from the bypass passage 8 e to the bottom of the cooling space 7.

  Further, reference numeral 2d in FIG. 3 is a casing member that forms the upper wall portion of the liquid return space 8d described above, and the valve chamber forming member 2f provided on a part of the lower plate 2b of the lid 2 is provided. The liquid return space 8d described above is formed so as to be fitted to the upper part.

  Moreover, the code | symbol 9 in FIGS. 1-3 is the aroma oil storage part provided in the approximate center part upper surface side of the cover body 2, The lower part of the part is the said liquid return space 8d in the cover body 2 It is provided in contact with the upper wall portion of the casing member 2d, and the stored aroma oil is warmed by the heat conduction of the vapor in the liquid return space 8d to generate aroma.

  Further, the lid body 2 is configured to include an engagement piece 2h for helicoid engagement with the container body 1A on the side wall portion 2g, and is rotated to the engagement groove portion of the shoulder member 11 on the container body 1A side. To be engaged. Reference numerals 4a and 4b in FIG. 1 and FIG. 2 are concave portions for the rotation operation. When the concave portions 4a and 4b are grasped by hand and turned to the right, the lid 2 is engaged and fixed to the container main body 1A side. If it is turned in the opposite direction, it will be removed.

  Further, reference numeral 5 in FIGS. 1 to 3 is a handle used when the container main body 1A is removed from the power supply base 1B as shown in FIG. 2, and is carried when water is put into the liquid container 3 after the removal. It is also used as a product. The handle 5 is attached to both sides of the shoulder portion of the container main body 1A so as to be rotatable forward and backward via attachment shafts 5a and 5a.

  On the other hand, the power supply base 1B has a desktop shape as shown in the figure, and is constructed by fitting and integrating a synthetic resin upper cover 15a and a lower cover 15b with each other while maintaining a predetermined height space inside. ing. The upper cover 15a includes a recess 15c, 15c, 15c for engagement corresponding to the protrusions 16d, 16d, 16d of the bottom case 16a of the container main body 1A and a power supply coupler 25 corresponding to the power receiving coupler 10 on the container main body 1A side. And are provided.

  The power feeding coupler 25 is provided at the center of the upper cover 15a, and is an insertion / removal member having a sleeve-like electrode 10b on the power receiving coupler 10 side (having a dog-shaped spring electrode 25d on the outer peripheral portion). Electricity such as the groove-like electrodes 25b, 25b,..., 25c, 25c... Into which the above-mentioned sleeve-like electrodes 10c, 10c. It is comprised with a typical connection means.

  As shown in FIGS. 1 and 2, for example, as shown in FIGS. 1 and 2, a power / switch combination switch 20 having both functions of switching the power ON / OFF and the strength / weakness of the humidification amount is provided on the front side of the power supply 1B. For example, as shown in FIGS. 1 and 3, the container body 1A is placed on the power supply base 1B, and the power supply base 1B side power supply coupler 25 and the container main body 1A side power reception coupler 10 are coupled, When the power / switch combination switch 20 is turned ON, AC power is supplied to the above-described water heater 4a side, and heating in a heating amount / strong state is possible.

  On the other hand, when the power / switch combination switch 20 is turned ON once more from the same state, the hot water heating state is switched from the high heating amount hot water state to the low heating amount hot water state. If the button is pressed once again, the original state is restored.

  In addition to the first LED 21a indicating the heating amount / strong and the second LED 21b indicating the heating amount / weakness, an upper portion of the power / switching switch 20 on the same front side includes the first LED 21a indicating the heating amount / weakness. A third LED 21c for water supply notification for determining the remaining amount of hot water and notifying that water supply is required is provided.

  For example, as shown in FIGS. 3 and 5, in addition to the power / switching switch 20 and the first to third LEDs 21 a to 21 c, a room temperature (outside temperature) T ′ is provided on the rear side of the front surface of the power supply base 1 B. A microcomputer board C provided with a room temperature sensor TS2 comprising a thermistor to detect, an oscillation circuit and reset circuit 46, a notification buzzer 47 for generating switch operation sound and water supply notification, a control unit 40 for humidification control, etc. Yes.

  Further, a power input plug 27 is installed on the side of the power supply stand 1B on the back side, and on the inside thereof, for example, as shown in FIG. A second power supply board B including a power supply relay (relay contact) RS, a zero-cross signal detection circuit 41, a contact phase detection circuit 42, a relay drive circuit 43, a constant voltage regulator 44, and the like that are turned on in response to is provided. Yes. The power supply relay RS is made and self-held by the control unit 40 by controlling the operation of the relay drive circuit 43.

  The zero cross signal detection circuit 43 detects the zero cross signal of the power supply voltage of the AC power supply 30 and inputs it to the control unit 40.

  The contact phase detection circuit 42 detects the contact phase when the power supply relay RS is closed and inputs it to the control unit 40.

  The constant voltage regulator 44 forms, for example, a constant voltage operation power source for operating the control unit 40 having a direct current of 5 V, and supplies it to the control unit 40.

  In FIG. 5, Co in the second power supply substrate B is an electrolytic capacitor, F2 is a power supply fuse (pattern fuse), C1 and C2 are capacitors, D is a backflow prevention diode, and R is a current limiting resistor.

  The container main body 1A side first power supply board A, the power supply stand 1B side second power supply board B, and the microcomputer board C are connected to each other via detachable connector portions P1 to P6 as shown in FIG. ing. Specifically, the connector parts P1 to P6 in FIG. 5 are configured by a connection terminal part (electrical connection means) between the power receiving coupler 10 and the power feeding coupler 25 in FIG.

<Humidification control and water supply notification control>
As described above, the control unit 40 on the microcomputer board C includes the ON / OFF signal from the power / switching switch 20 and the room temperature from the room temperature sensor TS2, as understood from the circuit of FIG. In addition to the detection temperature, the signal from the oscillation circuit and the reset circuit 46, the water temperature detection signal from the temperature sensor TS1 of the first power supply board A on the container body 1A side, the zero cross detection circuit on the second power supply board B described below The zero cross detection signal from 41 and the contact phase detection signal from the contact phase detection circuit 42 are respectively input, and the relay drive circuit 43 provided on the second power supply board B and the first to first on the microcomputer board C are also provided. A control signal for operating the third LEDs 21a to 21c and the buzzer 47 is output.

  And humidification control as shown in FIG. 6 is performed by this.

  That is, the time chart of FIG. 6 shows a humidification control method by the humidifier having the configuration of FIGS.

  In FIG. 6, (a) is an ON operation signal of the power / switch combination switch 20, (b) is a change in the water temperature in the liquid container 3 (change in the detected temperature T of the temperature sensor TS1), and (c) is a water heater 4a. ON / OFF signals (operating state), (e) is ON / OFF signals (lighting state) of the first and second LEDs 21a and 21b indicating the high and weak humidification setting states, and (f) is a water supply detection described later. The ON / OFF signal (lighting state) of the third LED 21c that sometimes notifies the water supply, (g) shows the buzzer 47 that generates the ON operation sound (short sound) and the water supply notification sound (long sound) of the power / switch combination switch 20 ON and OFF signals (operation states) are shown.

  Further, (h) shows the drive output (duty ratio n / 16) of the water heater 4a in each process from the water boiling process to the water supply detection process, the transition temperature (water temperature) between each process, the process time (timer value), etc. Show.

  In the case of this embodiment, as described above, on the front side of the power supply stand 1B, as shown in FIG. 1 and FIG. 2, there is a function for switching between ON / OFF of the power source and the strength level of the humidification amount. A power / switch combination switch 20 is also provided, the container body 1A is placed on the power supply base 1B, and the power supply base 1B side power supply coupler 25 and the container main body 1A side power reception coupler 10 are coupled (FIG. 5). When the power / switch combination switch 20 is turned on in the state where the P1 to P6 parts of the power supply / switch 6 are connected), the relay drive circuit 44 on the second power supply board B is activated to make the power supply relay RS, As a result, the AC power from the AC power supply 30 is supplied to the water heater 4a side, and the water can be heated in a humidified amount / strong state.

  On the other hand, when the power / switch combination switch 20 is turned ON again from the same state, the humidification amount / strong water boiling state is switched to the humidification amount / weak water heating state (FIG. 6 (a) to 6). (See (g)). Then, when it is desired to reset the setting state so far, when it is pressed once more, it returns to the original state (in FIG. 6A, the ON signal for reset is not shown).

  In addition, in addition to the first LED 21a indicating the humidification amount / strong and the second LED 21b indicating the weakness, an upper portion of the power / switching switch 20 on the front portion of the power supply stand 1B is described below. A third LED 21c for water supply notification for determining the remaining amount of hot water in the liquid container 3 and notifying that water supply is necessary is provided in a state where a certain amount of hot water remains.

  For example, as shown in detail in FIG. 7, the water supply detection in the remaining water state is performed from the boiling water process 1 (initial water temperature to T1 ° C./t1 second) by full energization in FIG. 6 to the boiling water process 2 (T1 ° C. to T2 ° C. / t2 seconds), after the boiling detection has been performed, the room temperature (outside temperature) T′n within the OFF time in the ON / OFF control of the water heater 4a by the control unit 40 during the humidification process for generating steam is turned on. The amount of change ΔT ° C. of the water temperature that decreases accordingly is used as a reference.

  Therefore, as described above, the microcomputer board C on the back side of the front side of the power supply base 1B has a room temperature T′n in addition to the power / switching switch 20 and the first to third LEDs 21a to 21c. A room temperature sensor TS2 for detection is provided.

  When the room temperature (outside temperature) T′n is low, the degree of decrease in the water temperature within the time when the water heater 4a is turned off becomes larger than when the room temperature (outside temperature) T′n is high.

  On the other hand, when the room temperature (outside temperature) T′n is high, the degree of decrease in the water temperature within the time when the water heater 4a is turned off becomes smaller than when it is low.

  Therefore, the reference value ΔT ° C. of the temperature gradient for water supply detection is corrected (changed) based on the room temperature T′n at that time, and proper water supply detection is always performed without being affected by the room temperature T′n at that time. I can do it.

  Of course, at this time, for example, as shown in the tables of FIGS. 8 and 9, the difference ΔTn between the current water temperature Tn and the previous water temperature Tn−1, the difference ΔT′o between the boiling detection temperature T3 and the actual water temperature Tn. When the difference is determined, it is considered whether the humidification amount is strong or weak, and these are also reflected in the reference value.

  Then, when the current remaining water amount is a low value that requires water supply, the third LED 21c is turned on, and the buzzer 47 is sounded to notify that water supply is required.

  As described above, according to the direct heating humidifier of this embodiment, the amount of remaining water is determined from the degree of decrease in the water temperature within the OFF time of the water heater 4a, ON / OFF control of the control unit 40, and further the same determination The water supply notification is performed when the amount of remaining water is equal to or less than a predetermined amount.

  Therefore, problems such as loss of power consumption due to empty cooking, reduction of life of liquid container due to empty cooking, sticking of chlorinated components to the inner wall of liquid container, etc. Is surely resolved.

  Further, since the remaining water amount can be determined and the water supply notification can be performed by a complete non-contact method using only the control unit 40, the temperature sensor TS1, and the room temperature sensor TS2, a special structure such as a conventional float method is provided in the liquid container 3. Is unnecessary, and handling and maintenance of the liquid container 3 and the lid 2 are easy.

  Of course, there is no problem that the chalk component adheres to the float portion.

  1A is a container body, 1B is a power supply base, 2 is a lid, 3 is a liquid container, 4a is a water heater, 5 is a handle, 10 is a power receiving coupler, 15a is an upper cover, 15b is a lower cover, 16a is a bottom case, 16b Is an outer case, 20 is a power / switching switch, 21a to 21c are first to third LEDs, 25 is a power supply coupler, and 40 is a control unit.

Claims (2)

  Liquid container for containing water, heating means for heating the water in the liquid container, humidification control means for controlling humidification by driving the heating means ON and OFF, and water temperature detection for detecting the water temperature in the liquid container A humidifier comprising: means for detecting a change in the water temperature in the liquid container by the water temperature detecting means, and determining the amount of remaining water from the degree of decrease in the water temperature within the heating means OFF time by the humidifying control means. A humidifier characterized by that.   Liquid container for containing water, heating means for heating the water in the liquid container, humidification control means for controlling humidification by driving the heating means ON and OFF, and water temperature detection for detecting the water temperature in the liquid container A humidifier comprising: means for detecting a change in the water temperature in the liquid container by the water temperature detecting means, and determining the amount of remaining water from the degree of decrease in the water temperature within the heating means OFF time by the humidifying control means. And the humidifier characterized by performing water supply alert | report when the amount of said residual water is below a predetermined amount.

Images