humidifier

Abstract

To provide means capable of appropriately controlling a diffusion range and a temperature of steam to be released.SOLUTION: A humidifier 1 includes: a tank 21 storing liquid; a heating part 23 heating the liquid to generate steam; a pipe 24 guiding the steam; and a nozzle part 14 releasing the steam from the pipe 24. The nozzle part 14 includes a first injection part 141L and a second injection part 141R. Each of the first injection part 141L and the second injection part 141R includes an inflow port 147 to which steam from the pipe 24 flows in and a release port 148 for releasing the steam caused to flow in. A distance between the center of the first injection part 141L to the center of the second injection part 141R is 10-45 mm.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a humidifier that generates steam. [Background technology]

[0002] There are humidifiers that generate steam toward the position of the user's face. For example, Patent Document 1 describes a humidifier that detects the position of the user's face and controls the amount of steam generated and the amount of air blown based on the position of the face. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-96648 A Summary of the Invention [Problem to be solved by the invention]

[0004] When releasing steam toward the skin surface such as the face, it is preferable to appropriately adjust the diffusion range and temperature of the steam, but the humidifier in Patent Document 1 does not take these points into consideration. In view of the above background, the present invention provides a means for appropriately adjusting the diffusion range and temperature of emitted vapor. [Means for solving the problem]

[0005] In order to solve the above-mentioned problems, the present invention provides, as a first aspect, a humidifier comprising a tank for storing liquid, a heating section for heating the liquid to generate steam, a tube for guiding the steam, and a first jetting section and a second jetting section each having an inlet through which steam from the tube flows in and an outlet through which the inflowing steam is discharged, wherein the distance from the center of the first jetting section to the center of the second jetting section is 10 to 45 mm (millimeters). According to the humidifier of the first aspect, the diffusion range and temperature of the steam ejected can be made appropriate for the expected position of the face.

[0006] In the humidifier of the first aspect, a configuration in which the first jetting part and the second jetting part each have a cylindrical flow path part with a height of 0.3 mm to 0.9 mm may be adopted as a second aspect. According to the humidifier of the second aspect, water droplets are less likely to accumulate near the outlet, so that a drop in the steam temperature caused by water droplets is prevented, and the ejected steam can be kept at an appropriate temperature.

[0007] In the humidifier of the first or second aspect, a configuration may be adopted as a third aspect in which the first and second ejection sections have an inner wall of the flow path from the inlet to the outlet that has a portion that widens toward the outlet, and the inner wall surface of that portion is inclined at an angle of 40 degrees or more with respect to the central axis of the flow path. According to the third aspect of the humidifier, water droplets are less likely to accumulate around the outlet, and the temperature of the steam being emitted is prevented from dropping. In addition, the steam is easily diffused, so that the steam can easily reach the entire face of the user.

[0008] In the humidifier of any one of the first to third aspects, a fourth aspect may be adopted in which the inlet has a diameter of 3.5 mm to 5 mm, and the outlet has a diameter of 6 mm to 10 mm. According to the humidifier of the fourth aspect, the steam that is sprayed onto the user's face can be adjusted to an appropriate temperature.

[0009] In the humidifier of any one of the first to fourth aspects, a configuration in which the distance from the center of the first jetting part to the center of the second jetting part is 20 to 35 mm may be adopted as a fifth aspect. According to the humidifier of the fifth aspect, steam is diffused over an appropriate range, making it easier for the steam to reach the entire face of the user.

[0010] In a sixth aspect, the humidifier of any of the first to fifth aspects may further include a temperature sensor that measures the temperature of the skin surface of the user's face, and a control unit that controls the amount of steam generated in the heating unit based on the measured temperature. According to the humidifier of the sixth aspect, the amount of steam hitting the face of the user can be appropriately controlled based on the temperature of the skin surface of the user.

[0011] In the humidifier of the sixth aspect, a seventh aspect may be adopted in which the humidifier further includes a drive mechanism that controls the direction in which the outlets of the first and second ejection parts face, and the control unit controls the drive mechanism based on the temperature measured by the temperature sensor. According to the humidifier of the seventh aspect, the concentration of the steam hitting the user's face can be changed according to the temperature of the skin surface of the user's face.

[0012] In the seventh aspect of the humidifier, an eighth aspect may be adopted in which the humidifier is provided with a distance measuring sensor that measures the distance from the first ejection portion and the second ejection portion to the user's face, and the control portion controls the drive mechanism based on the distance measured by the distance measuring sensor. According to the eighth aspect of the humidifier, steam can be emitted in a direction that is likely to hit the user's face, depending on the distance to the face.

[0013] In the humidifier of any of the sixth to eighth aspects, a ninth aspect may be adopted in which the control unit performs control based on the temperature measured by the temperature sensor so that the temperature of the steam reaching the face falls within a predetermined range with 40°C as the standard. According to the humidifier of the ninth aspect, the steam that reaches the face can be adjusted to an appropriate temperature based on the temperature of the facial skin surface.

[0014] In a humidifier of any of the sixth to ninth aspects, a tenth aspect may be adopted in which the temperature sensors are provided in plurality to measure the temperature of the skin surface at multiple positions on the face, and the control unit executes the control based on the measurement results of the multiple temperature sensors. According to the humidifier of the tenth aspect, it is possible to perform control so that the temperature distribution on the facial skin surface becomes uniform.

[0015] In the humidifier of the tenth aspect, a configuration may be adopted as an eleventh aspect, further comprising a notification unit that notifies the user of the temperature distribution state of the facial skin surface based on the measurement results of the multiple temperature sensors. According to the humidifier of the eleventh aspect, the temperature distribution state of the skin surface of the user's face can be notified to the user based on the measurement results by the multiple temperature sensors.

[0016] In the humidifier of the eighth aspect, a configuration may be adopted as a twelfth aspect, further comprising a notification unit that notifies the user when the distance measured by the distance measuring sensor is outside a predetermined range. According to the humidifier of the twelfth aspect, it is possible to guide the user so that the face is in an appropriate position relative to the humidifier. [Brief description of the drawings]

[0017] [Figure 1] FIG. 1 is a diagram showing the appearance of a humidifier according to a first embodiment. [Diagram 2] FIG. 1 is a diagram showing an internal structure of a humidifier according to a first embodiment. [Diagram 3] FIG. 2 is a diagram showing the structure of a nozzle portion of the humidifier according to the first embodiment. [Figure 4] FIG. 2 is a diagram for explaining a state of diffusion of steam in the humidifier according to the first embodiment. [Diagram 5] FIG. 2 is a diagram showing the structure of a jetting part of the humidifier according to the first embodiment. [Figure 6] FIG. 4 is a diagram showing the relationship between the distance between two jetting parts and the diffusion range of steam in the humidifier according to the first embodiment. [Figure 7] FIG. 4 is a diagram for explaining the relationship between the distance between two jetting parts and the diffusion range of steam in the humidifier according to the first embodiment. [Figure 8] FIG. 1 is a block diagram showing the configuration of a humidifier according to a first embodiment. [Figure 9] FIG. 13 is a diagram showing the appearance of a humidifier according to a second embodiment. [Figure 10] FIG. 6 is a block diagram showing the configuration of a humidifier according to a second embodiment. [Figure 11] FIG. 11 is a diagram showing a control flow in a humidifier according to a second embodiment. [Figure 12] FIG. 11 is a diagram for explaining drive control of a nozzle portion in a humidifier according to a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] [Embodiment] A humidifier 1 according to a first embodiment of the present invention will be described below. Fig. 1 is a diagram showing the external appearance of a humidifier 1. The humidifier 1 is composed of a cylindrical main body 11 and a cover 12 that can be opened and closed relative to the top surface of the main body 11. An operation lamp 13 is provided on the front side surface of the main body 11. The operation lamp 13 is lit by turning on a power switch provided on the lower rear surface side of the main body 11.

[0019] The top surface of the main body 11 is provided with a nozzle section 14 and a plurality of operation buttons 15. The nozzle section 14 is provided with a pair of ejection sections 141L, 141R, each having an opening for emitting steam, arranged side by side in the left-right direction. In addition, adjustment knobs 142L, 142R are provided on the left and right ends of the nozzle section 14 to allow the user to rotate the nozzle section 14 to change the direction of the ejection sections 141L, 141R.

[0020] The ejection portions 141L and 141R are oriented so that the steam is emitted diagonally upward toward the front of the main body 11, but the angle of the emission direction can be adjusted in the vertical direction by using the adjustment knobs 142L and 142R.

[0021] The multiple operation buttons 15 are used by the user to select an operation mode, and can set the operation time, such as whether to release steam for a short time or a long time. The top surface of the main body 11 on which the nozzle part 14 and the operation buttons 15 are provided can be hidden by closing the cover 12.

[0022] Fig. 2 is a diagram showing the internal structure of the humidifier 1. Fig. 2 shows a state in which the cover 12 is closed. When steam is to be generated, the cover 12 is opened by the user as shown in Fig. 1.

[0023] Water, which is a liquid for generating steam, is stored in the tank 21. The tank 21 is detachable from the main body 11. A user can remove the tank 21 from the main body 11, supply water into the tank 21, and attach it to the main body 11.

[0024] The water stored in the tank 21 is supplied to the boiler room 22 via a water supply line. In the boiler room 22, the supplied water is boiled to generate steam. Heaters 23a, 23b, which are heating units, are provided on the outer surfaces of the left and right sides of the boiler room 22. By heating the boiler room 22 with the heaters 23a, 23b, the water in the boiler room 22 can be boiled to generate steam.

[0025] The upper part of the boiler chamber 22 and the nozzle section 14 are connected by a pipe 24. Steam generated in the boiler chamber 22 rises from the upper part of the boiler chamber 22 through the pipe 24, flows along the path indicated by the arrow A, and reaches the nozzle section 14. The steam that reaches the nozzle section 14 is discharged to the outside from two ejection sections 141L and 141R.

[0026] Fig. 3 shows the structure of nozzle portion 14, where Fig. 3(A) is a top view of jetting portions 141L and 141R as viewed from above, and Fig. 3(B) is a cross-sectional view taken along line B-B in Fig. 3(A). Nozzle portion 14 is a cylindrical member, and is provided such that the upper side including jetting portions 141L and 141R is exposed from the upper surface of main body portion 11 as shown in Fig. 1.

[0027] A protruding adjustment knob 142L is provided at the left end of the upper side surface of the nozzle portion 14, and a protruding adjustment knob 142R is provided at the right end. Two jetting portions 141L, 141R are provided between the adjustment knobs 142L, 142R at both ends. The jetting portion 141L is provided on the left side of the center position of the nozzle portion 14 (the adjustment knob 142L side), and the jetting portion 141R is provided on the right side of the center position of the nozzle portion 14 (the adjustment knob 142R side).

[0028] Each of the jetting parts 141L, 141R has a circular opening 145 penetrating from the outer surface side to the inner surface side of the nozzle part 14. The distance LO between the centers of the two jetting parts 141L, 141R (which is equivalent to the distance between the centers of the two openings 145 in this embodiment) is preferably 10 mm (millimeters) or more and 40 mm (millimeters) or less. More preferably, it is 20 mm (millimeters) or more and 35 mm (millimeters). The preferable value of such a distance LO will be described in detail later.

[0029] Fig. 4 is a diagram for explaining the diffusion state of the steam emitted from the ejection part 141 of the nozzle part 14. Fig. 4 shows the nozzle part 14 as viewed from above. The diffusion range SR indicates the range in which the steam emitted from the jetting part 141R diffuses, and the diffusion range SL indicates the range in which the steam emitted from the jetting part 141L diffuses. In Fig. 4, the diffusion ranges SR and SL indicate the diffusion ranges in the horizontal direction, and in practice, the steam also diffuses in the vertical direction.

[0030] Distance LU indicates the distance from the ejection parts 141L, 141R to the user's face. In this embodiment, a reference value of distance LU is assumed to be 200 mm. As shown in Fig. 4, there is an overlapping portion between the diffusion range SR and the diffusion range SL. In the overlapping portion, the steam emitted from each of the ejection parts 141L, 141R mixes with each other, and the steam can be maintained at a high temperature.

[0031] In this embodiment, it is assumed that the temperature of the steam is kept at 40° C. at the position where the steam hits the user's face (at the position of distance LU). In Fig. 4, width LLR indicates the width of the entire diffusion range of the steam emitted from each of the jetting parts 141L, 141R at the distance LU. And width LW indicates the width of the range where the diffusion ranges of the steam emitted from each of the jetting parts 141L, 141R overlap at the position where the steam hits the user's face (at the position of distance LU).

[0032] Diffusion range SA indicates the range where the diffusion ranges of the steam emitted from each of the ejection parts 141L and 141R overlap and the temperature of the steam is maintained at around 40°C. This range is close to an ellipse in Fig. 4, but in actual space it is a shape that also extends vertically and is close to an ellipsoid. Distance LD indicates the depth of diffusion range SA (the minor axis of the ellipsoid).

[0033] When using the humidifier 1, it is preferable that the user's face is positioned within the diffusion range SA. By doing so, steam at a temperature of 40° C. can be applied to the skin surface of the user's face, and the temperature of the skin surface can be set to 40° C. By keeping the temperature of the skin surface at 40° C., collagen production in the skin surface is promoted, leading to beautiful skin.

[0034] FIG. 5 is a cross-sectional view showing the structure of the jetting portion 141 (hereinafter, the two jetting portions 141L and 141R may be collectively referred to as the jetting portion 141 in some cases). The opening 145 of the jetting part 141 has an opening 145a formed on the inner periphery side and an opening 145b formed on the outer periphery side. The opening 145a on the inner periphery side has an inflow port 146 through which the steam flows in, and the opening 145b on the outer periphery side has an outlet 147 through which the steam is released.

[0035] Opening 145a formed on the inner periphery side is formed by a cylindrical flow path 148 in which the diameter of the inner wall does not change from inlet 146 toward the outer periphery side (opening 145b side). Opening 145b formed on the outer periphery side is formed by an inclined portion 149 in which the diameter of the inner wall increases from the outer periphery end of opening 145a toward discharge port 147. In this embodiment, the jetting portion 141 as described above is made of a resin material.

[0036] The diameter of inlet 146, i.e., the diameter D1 of flow path 148, is preferably 3.5 mm or more and 5 mm or less. Also, the diameter D2 of outlet 147 is preferably 6 mm or more and 10 mm or less. By setting the diameter sizes of inlet 146 and outlet 147 in such ranges, the flow rate at which steam is discharged from flow path 148 can be set to an appropriate value, and the diffusion range SA of a temperature of about 40° C. in FIG. 4 can be realized.

[0037] The height T1 of the flow path 148 is preferably 0.3 mm or more and 0.9 mm or less. By setting the thickness of the flow path 148 in this range, the temperature of the released steam is less likely to drop, and water droplets are less likely to accumulate outside the flow path 148 (near the inclined portion 149 and the discharge port 147). Therefore, it is possible to realize a diffusion range SA of a temperature of about 40° C. in FIG. 4.

[0038] When the spouting part 141 is made of resin as in this embodiment, strength problems arise, so it is better for the thickness of the flow path 148 not to be too thin, but if the thickness exceeds 1 mm, moisture will be released and water droplets will accumulate near the release port 147. For these reasons, it is more preferable that T1 be 0.5 mm or more and 0.8 mm or less.

[0039] It is preferable that the inclination angles φ1 and φ2 of the inclined portion 149 (the inclination angles of the inner wall surface of the inclined portion 149 with respect to the central axis C of the flow path 148) are 40 degrees or more. By providing the inclined portion 149 inside the outlet 147 in this way, water droplets are less likely to accumulate near the outlet 147, and steam is more likely to be diffused appropriately. Therefore, the width LW of the diffusion range SA can be increased, and steam at a temperature of about 40° C. is more likely to hit a wide area of ​​the user's face.

[0040] It is preferable that the two jetting portions 141L, 141R have the same shape, but they do not necessarily have to have the same shape as long as the diameter D1, diameter D2, height T1, and angles φ1, φ2 are formed within the above-mentioned ranges.

[0041] FIG. 6 is a diagram showing the relationship between the distance LO between the ejection portions 141L and 141R and the diffusion range of the steam, and shows the results of measuring the size of the diffusion range and the temperature of the steam within the diffusion range using nozzle portions 14 each having a distance LO changed between 10 mm and 70 mm.

[0042] According to the table in Figure 6, the shorter the distance LO, the larger the area and width LW of the diffusion range SA. The temperature (temperature of steam within the diffusion range) is 40.0°C when the distance LO is 20mm, 25mm, or 35mm. When the distance LO is 40mm, it is 39.5°C, and when it is 45mm, it is 39.0°C, and the temperature is maintained close to the ideal 40°C, but when it is 50mm, it is 38.5°C, which is too low. When the distance LO is 15mm, it is 40.5°C, and when it is 10mm, it is 41.0°C, and the temperature is maintained close to the ideal 40°C. From these results, it is considered that the temperature becomes too high when the distance is less than 10mm.

[0043] From the above, it can be seen that the distance LO is preferably 10 mm or more and 45 mm or less, which keeps the temperature of the steam in the diffusion range SA at around 40°C (39°C to 41°C). It is particularly preferable to set the distance LO to 20 mm or more and 35 mm or less, in which case the temperature of the steam in the diffusion range SA will be 40°C.

[0044] Fig. 7 is a diagram showing the relationship between the distance LO between the ejection parts 141L and 141R and the diffusion range of the steam, and also shows the relationship between the diffusion range of the steam and the range on the user's face that the steam hits. In Fig. 7, it is assumed that the skin surface of the user's face is 200 mm away from the ejection parts 141L and 141R (LU=200 mm), and the diffusion ranges SA, SR, and SL show the ranges at the position of LU=200 mm.

[0045] Figure 7(A) shows the case where the distance LO is 10 mm, Figure 7(B) shows the case where the distance LO is 20 mm, Figure 7(C) shows the case where the distance LO is 30 mm, Figure 7(D) shows the case where the distance LO is 40 mm, and Figure 7(E) shows the case where the distance LO is 50 mm.

[0046] In the cases of Fig. 7(A), Fig. 7(B), and Fig. 7(C) (LO = 10 to 30 mm), the diffusion range SA covers the entire skin surface of the face, and the temperature of the entire skin surface of the face can be raised to 40°C. In the case of Fig. 7(D) (LO = 40 mm), the diffusion range SA covers the entire face except for the edges, and the temperature of almost the entire skin surface of the face can be raised to 40°C. In the case of Fig. 7(E) (LO = 50 mm), the area covered by the diffusion range SA is too narrow compared to the entire face, so only a part of the skin surface of the face can be raised to 40°C. From the above, it can be said that the distance LO is preferably 40 mm or less.

[0047] FIG. 8 is a block diagram showing the configuration of the humidifier 1. The control unit 31 is composed of, for example, a circuit board equipped with a CPU (Central Processing Unit) and a drive board for controlling the heaters 23a, 23b. The CPU controls the operation of each component in the humidifier 1 by executing processes according to stored programs. The power switch 32 is provided at the bottom of the rear side of the main body 11 (not shown in FIG. 1), and when the switch is turned on by the user's operation, power is supplied to the control unit 31 and other components, making them operable.

[0048] When power is supplied and operation is started, the control unit 31 controls to light up the operation lamp 13. Also, the control unit 31 receives an output signal from the operation button 15. The two heaters 23a, 23b are controlled based on the operation mode set by the output signal from the operation button. Depending on the operation mode or the passage of time, the heaters 23a, 23b are controlled to be both on, or only one of the heaters 23a, 23b is controlled to be on.

[0049] Next, a humidifier 51 according to a second embodiment of the present invention will be described. Fig. 9 is a diagram showing the external appearance of humidifier 51. Body 11, cover 12, operation lamp 13, nozzle 14, and operation button 15 are similar to those of humidifier 1 in Fig. 1, but humidifier 51 has two temperature sensors 61a and 61b, a distance sensor 62, and notification lamps 63a, 63b, and 64 provided on the front side of body 11.

[0050] For example, a radiation thermometer is used as the temperature sensors 61a and 61b. The radiation thermometer can measure the surface temperature of an object without coming into contact with the object (i.e., non-contact) by measuring the intensity of infrared rays or visible light emitted from the object. A radiation thermometer, for example, focuses infrared rays radiated from an object onto an infrared sensor using a lens or the like, and outputs a signal corresponding to the incident infrared energy.

[0051] The two temperature sensors 61a and 61b are installed so that the directions of infrared rays incident on each sensor do not cross each other. Therefore, the infrared rays incident on the two temperature sensors 61a and 61b are infrared rays radiated from different positions on the subject. In other words, it is possible to measure the surface temperatures of two different positions on the face of the subject.

[0052] For example, a laser distance sensor is used as the distance measurement sensor 62. A laser light is emitted from the main body 11 in an obliquely upward direction, and the distance to the object is measured by receiving the return light reflected by the object. The notification lamps 63a and 63b are, for example, three-color LEDs (light-emitting diodes). Based on the measurement results of the temperature sensors 61a and 61b, the colors of the LEDs lit in the notification lamps are switched to notify the user. For example, a three-color LED (light-emitting diode) is used as the notification lamp 64. Based on the measurement result by the distance measurement sensor 62, the color of the lit LED is switched to notify the user.

[0053] FIG. 10 is a block diagram showing the configuration of the humidifier 51. As shown in FIG. The control unit 65 is composed of, for example, a circuit board equipped with a CPU (Central Processing Unit) and a drive board for controlling the heaters 23a, 23b. The CPU controls the operation of each component in the humidifier 51 by executing processes according to stored programs. The power switch 32, operation lamp 13, and operation button 15 are the same as those in FIG. 8.

[0054] The driving mechanism 66 is a mechanism for driving the nozzle portion 14. The driving mechanism 66 can perform control to change the direction in which the discharge ports 147 of the jetting portions 141L and 141R face by rotating the cylindrical nozzle portion 14 about the central axis. By this control, the angle at which the steam is discharged can be automatically changed without the user having to adjust the adjustment knobs 142L and 142R.

[0055] The control unit 65 can control the operation of the drive mechanism 66, and by this control, can set the direction in which the discharge ports 147 of the jetting parts 141L and 141R are facing. The control unit 65 also stores the amount of drive of the nozzle part 14 by the drive mechanism 66, and can recognize the rotation angle of the nozzle part 14, that is, the current operating status (whether or not the discharge ports 147 of the jetting parts 141L and 141R are rotating) and the direction (angle) in which they are facing.

[0056] The control unit 65 receives output signals indicating the measurement values ​​from the temperature sensors 61a and 61b. The measurement values ​​are then converted into temperatures to obtain the temperature of the surface (skin surface) of the object (user's face). When the object is the user's face, the two temperature sensors 61a and 61b can obtain the temperatures of the skin surface at two positions on the user's face.

[0057] The control unit 65 inputs an output signal indicating the measurement value from the distance measurement sensor 62. Then, based on the measurement value, the control unit 65 calculates the distance from the jetting units 141L, 141R to the target (the user's face). The distance measurement sensor 62 and the jetting units 141L, 141R are provided at different positions in the humidifier 51. In addition, since the angle at which the jetting units 141L, 141R are facing is variable by the drive mechanism 66, the irradiation angle of the laser light emitted from the distance measurement sensor 62 for measurement is not necessarily the same as the angle at which the jetting units 141L, 141R are facing.

[0058] Therefore, the distance from the ejection portions 141L, 141R to the target (the user's face) is calculated by correcting the measurement value obtained from the distance measurement sensor 62 based on the difference in the installation positions of the distance measurement sensor 62 and the ejection portions 141L, 141R, and the difference between the irradiation direction of the laser light from the distance measurement sensor 62 and the stored direction in which the ejection portions 141L, 141R are facing.

[0059] The control unit 65 controls the amount of steam generated based on the temperature of the skin surface of the user's face obtained by the measurement values ​​from the temperature sensors 61a and 61b. The amount of steam generated is controlled by controlling the operation of the two heaters 23a and 23b. For example, the control unit 65 controls both of the two heaters 23a and 23b to be in the ON state at the start of operation. Then, when the obtained temperature becomes higher than a predetermined range, the control unit 65 controls one of the two heaters 23a and 23b to be in the OFF state in order to reduce the amount of steam generated. In this way, the heating power is weakened, thereby reducing the amount of steam generated.

[0060] In addition, if the temperature acquired when one of the two heaters 23a, 23b is in the off state is lower than a predetermined range, the control unit 65 controls the heater that is in the off state to be in the on state, thereby increasing the heating power and increasing the amount of steam generated.

[0061] Furthermore, the control unit 65 controls the nozzle unit 14 to repeatedly rotate up and down by driving the drive mechanism 66 based on the temperature of the skin surface of the user's face obtained from the measured values ​​of the temperature sensors 61a and 61b. This control is performed to lower the concentration of steam near the user's face by swinging the direction of the ejection units 141L and 141R up and down when the temperature of the skin surface of the user's face becomes higher than a predetermined range, thereby preventing the temperature of the skin surface of the user's face from becoming too high.

[0062] Furthermore, the control unit 65 controls the driving mechanism 66 to change the angle of the nozzle unit 14 based on the distance to the user's face obtained from the measurement value from the distance measuring sensor 62. This control is performed to set the direction of the jetting units 141L, 141R to an angle that makes it easy for the steam to hit the user's face, depending on the distance to the user's face.

[0063] Fig. 11 is a flowchart showing the processing performed by the control unit 65 according to a program. The flowchart in Fig. 11 shows the processing executed at a predetermined time interval when the humidifier 51 is in a power-on state due to the user operating the power switch 32, at least one of the heaters 23a, 23b is in an on state, and steam is being emitted from the ejection parts 141L, 141R.

[0064] First, the control unit 65 receives an output signal indicating a measurement value, which is distance information, from the distance measurement sensor 62, and obtains the distance to the target object, that is, the face of the user (step S201). Next, it is determined whether the distance acquired from the distance measuring sensor 62 is within a predetermined range (step S202). When the temperature sensors 61a and 61b are used to measure the temperature, there is a possibility that an accurate value cannot be obtained if the distance to the target object is too far. If the distance is not within the predetermined range (step S202: No), that is, if the distance is too far, it is determined that the user is not near the humidifier 51, and the process of step S201 is repeated. If the distance is within the predetermined range (step S202: Yes), the control unit 65 inputs an output signal indicating a measurement value, which is temperature information, from the temperature sensors 61a and 61b, and acquires a temperature measurement value of the skin surface of the user's face (step S203).

[0065] Next, the control unit 65 judges whether the acquired temperature is within the temperature range of human skin (step S204). This process is performed in order to prevent the measurement value from being used in subsequent processes when the temperature sensors 61a and 61b measure the temperature of an object other than the user's face. The temperature range of human skin is set to, for example, 35°C to 43°C, and a measurement value outside this range is judged to be a temperature measurement value of an object other than a human face.

[0066] In this embodiment, since two temperature sensors are provided, the control unit 65 obtains two temperature measurement values. If neither of the two temperature measurement values ​​is within the temperature range of human skin (step S204: No), the process returns to step S201 and is repeated. If at least one of the two temperature measurement values ​​is within the temperature range of human skin (step S204: Yes), it is determined whether the temperature measurement value is within a predetermined range near 40 degrees (step S205). The predetermined range near 40 degrees Celsius is, for example, 39 degrees Celsius to 41 degrees Celsius.

[0067] If the temperature measurement value is higher than the predetermined range (i.e., higher than 41° C.), the process proceeds to step S211, and if the temperature measurement value is lower than the predetermined range (i.e., lower than 39° C.), the process proceeds to step S231. If the temperature measurement value is within the predetermined range (step S205: Yes), the process proceeds to step S221. Then, in each step, the rotation of the nozzle portion 14 and the heaters 23a and 23b are controlled.

[0068] In the above-mentioned step S204, the temperature measurement value that is determined not to be within the temperature range of human skin is not used in the judgment in step S205. In other words, the judgment is made using only one of the temperature measurement values ​​that is determined to be within the temperature range of human skin. If it is determined in step S204 that both of the two temperature measurements are within the temperature range of human skin, the following determination is made based on whether each of the two temperature measurements is within a predetermined range.

[0069] If both of the temperature measurements are higher than the predetermined range, or if one of the temperature measurements is higher than the predetermined range and the other is within the predetermined range, the process proceeds to step S211. If both of the temperature measurements are below the predetermined range, or if one of the temperature measurements is below the predetermined range and the other is within the predetermined range, the process proceeds to step S231. If both temperature measurements are within the predetermined range, or if one temperature measurement is higher than the predetermined range and the other is lower than the predetermined range, the process proceeds to step S221.

[0070] In step S211, the control unit 65 checks the operating state of the drive mechanism 66. Then, if the drive mechanism 66 is not performing the operation of repeatedly rotating the nozzle portion 14 up and down (hereinafter referred to as "up and down operation") (step S211: No), the control unit 65 controls the drive mechanism 66 to start the up and down operation of the nozzle portion 14 (step S212), and proceeds to step S241.

[0071] When the drive mechanism 66 is moving the nozzle unit 14 up and down (step S211: Yes), the control unit 65 checks the operating states of the heaters 23a and 23b (step S213). If multiple heaters are on (step S213: Yes, in this embodiment, there are two heaters, so two heaters are on), control is performed to turn off one heater (step S214), and the process proceeds to step S241.

[0072] The processes in steps S211 to S214 are for lowering the temperature of the skin surface of the user's face to within the predetermined range, since it is higher than the predetermined range. First, the nozzle unit 14 is controlled to move up and down to lower the concentration of steam near the face. If this control has already been performed, the number of heaters that are turned on is reduced. If only one heater is on (step S213: No), the operating state of the heaters is left as is, and the process proceeds to step S241.

[0073] In step S231, the control unit 65 checks the operating state of the drive mechanism 66. Then, if the drive mechanism 66 is moving the nozzle unit 14 up and down (step S231: Yes), the control unit 65 controls the drive mechanism 66 to stop the up and down movement of the nozzle unit 14 (step S232), and proceeds to step S241.

[0074] If the drive mechanism 66 is not moving the nozzle unit 14 up and down (step S231: No), the control unit 65 checks the operation state of the heaters 23a and 23b (step S233). Then, if all the heaters are on (step S233: Yes, in this embodiment, since there are two heaters, two heaters are on), the operation state of the heaters is left as it is, and the process proceeds to step S241. If there is a heater that is off (step S233: No), control is performed to turn one of the off heaters on (step S234). That is, in this embodiment, since there are two heaters, one of the off heaters is turned on. Then, the process proceeds to step S241.

[0075] The process of steps S231 to S234 is a process for raising the temperature of the skin surface of the user's face to within a predetermined range, since the temperature is lower than the predetermined range. First, if control is being performed to move the nozzle unit 14 up and down, this is stopped, and the concentration of steam near the face is increased. If control is not being performed to move the nozzle unit 14 up and down, the number of heaters to be turned on is increased.

[0076] In step S221, the control unit 65 checks the operating state of the drive mechanism 66. If the drive mechanism 66 is moving the nozzle unit 14 up and down (step S221: Yes), the control unit 65 controls the drive mechanism 66 to stop the up and down movement of the nozzle unit 14 (step S232), and proceeds to step S241. If the drive mechanism 66 is not moving the nozzle unit 14 up and down (step S221: No), the control unit 65 proceeds directly to step S241.

[0077] As described above, the control unit 65 controls the start or stop of the up and down movement of the nozzle unit 14 and controls the on and off of the two heaters so that the temperature of the steam in the diffusion range SA shown in Fig. 4 falls within a predetermined range (e.g., 39°C to 41°C) based on 40°C. In this way, the temperature of the steam hitting the user's face can be controlled to be around 40°C.

[0078] Next, the control unit 65 performs control to switch the lighting state of the notification lamps 63a, 63b, and 64 (step S241). First, the control unit 65 controls the lighting of the notification lamps 63a and 63b based on the two temperature measurements obtained from the temperature sensors 61a and 61b. In this embodiment, the lighting of the notification lamps 63a and 63b notifies the user whether the surface temperature of the user's face is uniform or not.

[0079] If the temperature measurement value acquired from the temperature sensor 61a is within a predetermined range (for example, 39°C to 41°C), control is performed to turn on the blue LED of the notification lamp 63a. If the temperature measurement value acquired from the temperature sensor 61a is lower than the predetermined range, control is performed to turn on the green LED of the notification lamp 63a. If the temperature measurement value acquired from the temperature sensor 61a is higher than the predetermined range, control is performed to turn on the red LED of the notification lamp 63a.

[0080] Similarly, when the temperature measurement value acquired from the temperature sensor 61b is within a predetermined range, the blue LED of the notification lamp 63b is controlled to light up. When the temperature measurement value acquired from the temperature sensor 61b is lower than the predetermined range, the green LED of the notification lamp 63b is controlled to light up. When the temperature measurement value acquired from the temperature sensor 61b is higher than the predetermined range, the red LED of the notification lamp 63b is controlled to light up. In this manner, by controlling the lighting colors of the two notification lamps corresponding to the two temperature sensors, it is possible to notify the user of the temperature distribution of the skin surface of the face.

[0081] Next, the control unit 65 performs control to switch the lighting state of the notification lamp 64 based on the distance from the ejection parts 141L, 141R to the user's face calculated from the measurement value obtained from the distance measurement sensor 62 (step S242).

[0082] The control unit 65 controls to turn on the blue LED of the notification lamp 64 when the calculated distance from the jetting parts 141L, 141R to the user's face is within a predetermined range (not significantly deviating from the reference value of 200 mm). Also, the control unit 65 controls to turn on the red LED of the notification lamp 64 when the calculated distance to the user's face is closer than the predetermined range. Also, the control unit 65 controls to turn on the green LED of the notification lamp 64 when the calculated distance to the user's face is farther than the predetermined range.

[0083] In this way, by switching the lighting color of the notification lamp 64 based on the distance to the user's face, it is possible to guide the user to move his or her face to a position within a predetermined range.

[0084] Next, the control unit 65 operates the drive mechanism 66 based on the distance from the ejection portions 141L, 141R to the target object calculated from the measurement value obtained from the distance measurement sensor 62, and thereby controls to change the direction in which the outlets 147 of the ejection portions 141L, 141R are facing by changing the angle of the nozzle portion 14 (step S243).

[0085] Fig. 12 is a diagram for explaining the control of drive mechanism 66 based on the distance to the target object. Fig. 12(A) is a diagram showing a case where the user's face is relatively close to humidifier 51, and Fig. 12(B) is a diagram showing a case where the user's face is relatively far from humidifier 51. Arrow R indicates the laser light emitted from distance measuring sensor 62, and arrow S indicates the direction and diffusion range of the steam emitted from ejection parts 141L and 141R.

[0086] 12(A), when the user's face is in a position relatively close to the humidifier 51, the user's face is often above the humidifier 51, and it is preferable to emit steam at a large angle relative to the horizontal direction. Therefore, when the calculated distance from the ejection parts 141L, 141R to the user's face is closer than a predetermined range, the control unit 65 performs control to set the direction in which the ejection openings 147 of the ejection parts 141L, 141R face to be at a large angle relative to the horizontal direction.

[0087] 12(B), when the user's face is located relatively far from the humidifier 51, it is preferable to emit steam at a smaller angle to the horizontal direction compared to the case of Fig. 12(A) in order to emit steam to a farther position. Therefore, when the calculated distance from the ejection parts 141L, 141R to the user's face is farther than a predetermined range, the control unit 65 performs control to set the direction in which the ejection openings 147 of the ejection parts 141L, 141R face to be at a small angle to the horizontal direction.

[0088] The control for changing the angle of the nozzle portion 14 in step S243 can be performed simultaneously with the up-down movement of the nozzle portion 14 described in steps S211, S221, and S231. The up-down movement of the nozzle portion 14 is an operation for repeatedly rotating the nozzle portion 14 within a predetermined angle range. If the central angle of the predetermined angle range of the rotation is set to the angle set in step S243, the nozzle portion 14 can perform up-down movement within a predetermined angle range centered on the set angle.

[0089] The control unit 65 repeatedly performs the above-described processes of steps S201 to S243 in FIG. 11 at predetermined time intervals.

[0090] [Variations] The above-described embodiment can be modified in various ways. Examples of such modifications are shown below. Note that the above-described embodiment and the modifications shown below may be combined as appropriate.

[0091] (1) In the above embodiment, LU, which is the reference value of the distance from the ejection parts 141L and 141R to the user's face, is set to 200 mm, but is not limited to this value. It is possible to set it to a desired distance as appropriate, and change the heating capacity of the heater, the shape of the ejection part, etc. according to the set distance.

[0092] (2) In the above embodiment, two heaters are provided as heating units, but three or more heaters may be provided. By increasing the number of heaters, the number of heaters to be turned on is increased, and the position of the vapor diffusion range SA can be easily controlled.

[0093] (3) In the first embodiment described above, the direction of steam emitted from the ejection parts 141L and 141R can be changed in the up-down direction by rotating the nozzle part 14. However, the direction of steam may be changed in the left-right direction. Similarly, in the second embodiment, the direction of steam may be changed in the left-right direction by the drive mechanism 66.

[0094] In this case, the up and down movements of the nozzle portion 14 performed in steps S212, S222, and S232 in FIG. 11, that is, the movements of the drive mechanism 66 repeatedly rotating the nozzle portion 14 up and down, may be repeated left and right rotation.

[0095] Furthermore, the angle control of the nozzle portion 14 based on the distance acquired from the distance measuring sensor in step S243 of FIG. 11 may be control based on temperature measurement values ​​acquired by temperature sensors 61a and 61b as described below.

[0096] In the second embodiment, when the nozzle portion 14 is configured to be rotated left and right to change the emission direction left and right, the control unit 65 may control the change in direction of the nozzle portion 14 as follows based on the temperature measurement values ​​obtained by the temperature sensors 61a, 61b.

[0097] For example, when the temperature measured by one of the two temperature sensors 61a, 61b is higher than the predetermined range, the nozzle portion 14 is rotated in the direction opposite to the side where the temperature sensor that measured the higher value is located, thereby decreasing the concentration of steam that hits the face on the side where the temperature is higher.

[0098] Also, for example, when the temperature measured by one of the two temperature sensors 61a, 61b is lower than a predetermined range, the nozzle portion 14 is rotated toward the side where the temperature sensor that measured the lower temperature is located, thereby decreasing the concentration of steam that hits the part of the face where the temperature is lower.

[0099] (4) In the second embodiment described above, the distance measuring sensor 62 irradiates the laser light in a fixed direction, but the irradiation direction may be controlled to be changed up and down or left and right. With this configuration, even if the user's face is not in front of the humidifier, the distance to the user's face can be measured.

[0100] (5) In the second embodiment described above, the temperature sensor receives infrared rays from a fixed direction, but the direction of incidence may be controlled to change up and down or left and right. With this configuration, even if the user's face is not in front of the humidifier, the temperature of the skin surface of the user's face can be measured.

[0101] (6) In the second embodiment described above, the temperature sensors 61a, 61b are provided on the front side of the main body 11, but they may be provided on the nozzle 14. In this case, if the temperature is measured by receiving infrared rays from the same direction as the steam emission direction at the ejection portion 141 provided on the nozzle 14, the temperature of an object in the steam emission direction can be measured. Also, when the nozzle 14 is rotated to change the emission direction, the incident direction of the infrared rays by the temperature sensor also changes accordingly, so that the temperature of the object can be measured accurately.

[0102] (7) In the second embodiment described above, the distance measuring sensor 62 is provided on the front side of the main body 11, but it may be provided in the nozzle 14. In this case, if the laser light is irradiated in the same direction as the steam emission direction in the jetting part 141 provided in the nozzle 14, the distance from the jetting part 141 to the target object can be accurately measured. Also, when the nozzle 14 is rotated to change the emission direction, the direction of irradiation of the laser light by the distance measuring sensor changes accordingly, so that the distance can be accurately measured.

[0103] (8) In the second embodiment described above, the distance measuring sensor 62 emits a laser beam. However, the distance measuring sensor 62 may emit electromagnetic waves (radio waves, ultrasonic waves, etc.) other than laser light. When the temperature sensors 61a and 61b perform measurements using incident infrared light, it is preferable that the light emitted by the distance measuring sensor 62 has a wavelength shorter than the infrared range in order to avoid any influence on the measurements by the temperature sensors 61a and 61b. (9) In the second embodiment described above, the temperature sensors 61a and 61b measure the temperature of an object by irradiating infrared light emitted by the object, but the temperature sensors may measure the temperature of the object in a different manner. For example, the temperature sensors may measure the temperature of the object by irradiating visible light emitted by the object.

[0104] (10) In the second embodiment described above, in the flowchart of FIG. 11, if the distance measured by the distance measuring sensor 62 is too far, no further processing is performed (step S202 of FIG. 11). However, if the range in which the temperature sensor can measure the temperature is about a few meters, it is not necessary to measure the distance by the distance measuring sensor.

[0105] When using a humidifier indoors, if the user is not in front of the humidifier, there is a possibility that the temperature of a wall or furniture several meters away will be measured. In that case, however, the measured temperature is unlikely to be within the range of human skin temperature (Step S204 in Figure 11), so there will be no problem with subsequent processing.

[0106] (11) In the second embodiment described above, the two temperature sensors 61a, 61b are arranged side by side in the horizontal direction on the front side of the main body 11, but the temperature sensors may be arranged side by side in the vertical direction. In this case, the control unit 65 may perform control to change the angle of the nozzle unit 14 as follows, based on the temperature measurement values ​​obtained by the two temperature sensors arranged side by side in the vertical direction.

[0107] For example, if the temperature measured by the temperature sensor installed on the upper side is higher than a predetermined range, the angle of the nozzle unit 14 is set to a small angle with respect to the horizontal direction. Then, the steam is emitted downward to reduce the concentration of steam hitting the upper part of the user's face. On the other hand, if the temperature measured by the temperature sensor installed on the lower side is higher than a predetermined range, the angle of the nozzle unit 14 is set to a large angle with respect to the horizontal direction. Then, the steam is emitted upward to reduce the concentration of steam hitting the lower part of the user's face.

[0108] Also, for example, if the temperature measurement value by the temperature sensor provided on the lower side is lower than a predetermined range, the angle of the nozzle portion 14 is set to a small angle with respect to the horizontal direction. Then, the steam is emitted downward to increase the concentration of steam hitting the lower part of the user's face. Also, if the temperature measurement value by the temperature sensor provided on the upper side is lower than a predetermined range, the angle of the nozzle portion 14 is set to a large angle with respect to the horizontal direction. Then, the steam is emitted upward to increase the concentration of steam hitting the upper part of the user's face.

[0109] (12) In the second embodiment described above, the notification lamps 63a, 63b change the color based on the temperature measurement values ​​of the corresponding temperature sensors 61a, 61b to notify the user of the temperature distribution of the skin surface of the face, but the notification may also be to prompt the user to move their face left or right.

[0110] For example, the notification lamps 63a and 63b are shaped like arrows, with the notification lamp 63a shaped like an arrow pointing to the left in FIG. 9 (i.e., an arrow shaped like an arrow pointing to the left when viewed from the user in front of the humidifier 51), and the notification lamp 63b shaped like an arrow pointing to the right in FIG. 9.

[0111] For example, when the temperature measurement value by the temperature sensor 61a is higher than a predetermined range, the notification lamp 63a is turned on. In this case, since the left side of the user's face is considered to be near the center of the diffusion range SA in FIG. 4, the notification lamp 63a prompts the user to move the face to the left as seen by the user. When the temperature measurement value by the temperature sensor 61b is higher than a predetermined range, the notification lamp 63b is turned on. In this case, since the right side of the user's face is considered to be near the center of the diffusion range SA in FIG. 4, the notification lamp 63b prompts the user to move the face to the right as seen by the user.

[0112] Also, for example, when the temperature measurement value by the temperature sensor 61a is lower than a predetermined range, the notification lamp 63b is turned on. In this case, since it is considered that the left side of the user's face is outside the diffusion range SA in FIG. 4, the notification lamp 63b is prompted to move the face to the right as seen by the user. Also, when the temperature measurement value by the temperature sensor 61b is lower than a predetermined range, the notification lamp 63a is turned on. In this case, since it is considered that the right side of the user's face is outside the diffusion range SA in FIG. 4, the notification lamp 63b is prompted to move the face to the left as seen by the user.

[0113] (13) In the above-described second embodiment, in step S205 of FIG. 11, if the temperature measurement value of one of the two temperature sensors is not within a predetermined range, a decision is made to proceed to step S211 or step S231 of FIG. 11 depending on whether the temperature measurement value that is not within the predetermined range is higher or lower than the predetermined range. However, the method of decision is not limited to this.

[0114] For example, the average of two temperature measurements may be calculated, and if the average is within a predetermined range, the process proceeds to step S221; if the average is higher than the predetermined range, the process proceeds to step S211; if the average is lower than the predetermined range, the process proceeds to step S231.

[0115] (14) In the second embodiment described above, two temperature sensors are provided, but only one may be provided. In this case, the determinations in steps S204 and S205 in FIG. 11 may be made based on the temperature measurement value by only one temperature sensor.

[0116] In the above-described second embodiment, two notification lamps 63a, 63b are provided corresponding to the temperature sensors 61a, 61b. However, if only one temperature sensor is provided, one of the notification lamps 63a, 63b does not need to be provided.

[0117] (15) In the second embodiment described above, two temperature sensors are provided, but three or more may be provided. In this case, the three or more temperature sensors are installed so that the incident directions of infrared rays from each of them do not intersect with each other, so that the temperatures of each of multiple different positions on the face of the subject can be measured.

[0118] 11 step S205 may be performed by, for example, calculating the average of the temperature measurements of the three or more temperature sensors. For example, if the average is within a predetermined range, the process proceeds to step S221, if the average is higher than the predetermined range, the process proceeds to step S211, and if the average is lower than the predetermined range, the process proceeds to step S231.

[0119] Alternatively, the temperature measurements from three or more temperature sensors may be classified into groups of temperature measurements within a predetermined range, temperature measurements higher than the predetermined range, and temperature measurements lower than the predetermined range, and a process corresponding to the group into which the largest number of measurements is classified may be performed. For example, if the majority of the temperature measurements are within the predetermined range, the process may proceed to step S221; if the majority of the temperature measurements are higher than the predetermined range, the process may proceed to step S211; and if the majority of the temperature measurements are lower than the predetermined range, the process may proceed to step S231.

[0120] If the number of temperature measurement values ​​classified into each group is the same, proceed to step S221. If the number of temperature measurement values ​​classified into the two groups is the same, the priority of the steps to proceed to (S211, S221, S231) can be determined in advance.

[0121] For example, if there are the same number of other groups as there are temperature measurements higher than the predetermined range, proceed to step S211. If there are the same number of temperature measurements higher than the predetermined range and lower than the predetermined range, proceed to step S221. If there are the same number of temperature measurements lower than the predetermined range and within the predetermined range, proceed to step S231.

[0122] In the second embodiment described above, two notification lamps 63a, 63b are provided corresponding to the temperature sensors 61a, 61b. However, if three or more temperature sensors are provided, three or more notification lamps may be provided corresponding to the temperature sensors. [Explanation of symbols]

[0123] 1··Humidifier, 11··Main body, 12··Cover, 13··Operation lamp, 14··Nozzle, 15··Operation button, 21··Tank, 22··Boiler room, 23, 23a, 23b··Heater, 24··Pipe line, 31··Control unit, 32··Power switch, 51··Humidifier, 61a, 61b··Temperature sensor, 62··Distance measurement sensor, 63a, 63b, 64··Notification lamp, 65··Control unit, 66··Drive mechanism, 141L, 141R··Ejection unit, 142L, 142R··Adjustment knob, 145, 145a, 145b··Opening, 146··Inlet, 147··Outlet, 148··Flow path, 149··Inclined portion.

Claims

1. A tank for storing a liquid; A heating unit that heats the liquid to generate steam; A tube for conducting the steam; a first ejection unit and a second ejection unit each having an inlet through which steam from the tube flows and an outlet through which the steam that has flowed in is ejected; The distance from the center of the first jet portion to the center of the second jet portion is 10 mm to 45 mm (millimeters), In the first and second jetting portions, The inner wall of the flow channel has a portion that widens toward the discharge port, and the portion The inner wall surface of each channel is inclined at an angle of 40 degrees or more with respect to the central axis of the channel, The diameter of the inlet is 3.5 mm to 5 mm, and the diameter of the outlet is 6 mm to 10 mm. That is, Humidifier.

2. The first and second jetting portions each have a cylindrical flow passage portion having a height of 0.3 mm to 0.9 mm.

2. The humidifier of claim 1.

3. The distance from the center of the first jetting portion to the center of the second jetting portion is 20 mm to 35 mm. A humidifier according to claim 1 or 2.

4. A temperature sensor that measures the temperature of the user's facial skin; a control unit that controls the amount of steam generated in the heating unit based on the measured temperature; The humidifier according to any one of claims 1 to 3, further comprising:

5. A drive mechanism for controlling the directions in which the outlets of the first and second jetting parts are directed is further provided, The control unit controls the driving mechanism based on the temperature measured by the temperature sensor.

5. The humidifier of claim 4.

6. a distance measuring sensor that measures a distance from the first jetting unit and the second jetting unit to a face of the user; The control unit controls the driving mechanism based on the distance measured by the distance measuring sensor. A humidifier according to claim 5.

7. The control unit executes control based on the temperature measured by the temperature sensor so that the temperature of the steam reaching the face falls within a predetermined range with 40° C. as a reference. A humidifier according to any one of claims 4 to 6.

8. The temperature sensor is provided in plurality so as to measure temperatures of the skin surface at a plurality of positions on the face, The control unit executes the control based on the measurement results of the plurality of temperature sensors. A humidifier according to any one of claims 4 to 7.

9. The temperature sensor further includes a notification unit that notifies the user of a temperature distribution state of the facial skin surface based on the measurement results of the plurality of temperature sensors.

9. The humidifier of claim 8.

10. The present invention further includes a notification unit that notifies the user when the distance measured by the distance measuring sensor is outside a predetermined range.

7. The humidifier of claim 6.

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