JP2006029742A - Humidifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a decorative effect by displaying a selection state by quantitative display using a plurality of LEDs, and adopting a dynamic display method instead of static display when changing and selecting operation of a blower between a plurality of levels such as strong, normal, and weak by a switch wherein a conventional humidifier displaying humidity of a room by a numeric value or the like by a microcomputer on the basis of detection of a humidity sensor, one light-emitting diode corresponding to a selection switch is lighted when operation of a blower is selected at either one of strong or weak by manual selection. <P>SOLUTION: A display part is provided using a plurality of light-emitting diodes lighted in response to a level of a rotational frequency of the blower, a small number of the light-emitting diodes is lighted in a low speed operation state of the blower, and in a higher speed operation state than the low speed operation state, a multiplicity of the light-emitting diodes is lighted, and a lighting range is enlarged to the right and left. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a humidifier that humidifies surrounding air by passing air from a blower through a humidifying filter, and more particularly to a technique for displaying an operating state of the blower.

  A suction port and a blowout port are formed in the humidifier body, a water tank is provided at the lower part of the humidifier body, and there is a humidifier in which a blower and a humidification filter are arranged in a ventilation path communicating the suction port and the blowout port, The blower can be manually switched between strong and weak during the manual operation, and automatically and dynamically switched by the microcomputer according to the detected value of the humidity sensor that detects the indoor humidity during the automatic operation. (For example, refer to Patent Document 1).

The display in Patent Document 1 includes a setting display unit 18 that displays the setting state of the operation changeover switch by lighting the light emitting diode. In the strong operation and the weak operation of the blower in the manual operation, the corresponding light emitting diode is lit. The status is displayed. Further, according to the detection value of the humidity sensor for detecting the indoor humidity, the humidity% at that time is displayed as a percentage by the lighting position of the light emitting diode of the humidity display section 20, and further, by the microcomputer according to the detection value of the humidity sensor. The indoor humidity state is displayed by changing the display method of the humidifying display section 21 divided into three.
JP 2000-74470 A

  Although the thing of patent document 1 is an excellent display method regarding the point which displays indoor humidity with a microcomputer according to the detected value of a humidity sensor, when the operation of a fan is selected to either strong or weak by manual selection Is a general display method for lighting a light emitting diode corresponding to the selection switch, and is not particularly novel.

  In the present invention, when the operation of the blower is selected by switching between multiple levels such as strong, weak, strong, or weak, a light-emitting diode corresponding to the selection switch is not lit but a quantitative display. One of them is to display the selected state by increasing the number of light emitting diodes in the high speed operation state compared to the number of diodes emitting in the low speed operation state. It is. Further, by moving away from the static display and adopting a dynamic display method, an illumination-like display is provided, and the decoration effect of the humidifier is improved.

  A first aspect of the present invention is a humidifier in which a water tank is provided at a lower portion of a humidifier body, and a blower and a humidification filter are arranged in a ventilation path that communicates a suction port and a blowout port. According to the rotation speed of the blower, Provided with a display unit of a plurality of light emitting diodes that emit light, a small number of the light emitting diodes are caused to emit light in the low speed operation state of the blower, and a large number of the light emitting diodes are caused to emit light in the high speed operation state than the low speed operation state. It is characterized by.

  The second invention is a humidifier in which a water tank is provided at the lower part of the humidifier main body, and a blower and a humidifying filter are arranged in a ventilation path communicating the suction port and the blowout port. A manual switch that switches between the three weak levels and a display unit with a plurality of light-emitting diodes that display the switching status of the switches are provided. When the selection by the switch is weak, a small number of the light-emitting diodes emit light, and the strong selection state Then, a large number of the light emitting diodes are caused to emit light, and in the middle selected state, the number of light emitting diodes intermediate between the weakly selected state and the strongly selected state is caused to emit light.

  According to a third invention, in the first or second invention, the plurality of light emitting diodes are arranged in a horizontal row, and the selection by the switch is a light emission in a central portion when the rotational speed of the blower is in a low speed selection state. The number of light emitting diodes that emit light increases from side to side as the diodes light up and become faster than that.

  A fourth invention is characterized in that, in the first or second invention, the plurality of light emitting diodes are arranged in a horizontal row, and the light emitting diodes are repeatedly lit so as to move sequentially from the center to the left and right. To do.

  A fifth invention is characterized in that, in the first or second invention, the plurality of light emitting diodes are arranged in a horizontal row, and the lighting range of the light emitting diodes is repeatedly lit from the center to the left and right.

  According to a sixth aspect of the present invention, in the first to fifth aspects of the present invention, the vertical beam of the outlet cover provided at the outlet is arranged corresponding to each of the light emitting diodes, and light emitted from the light emitting diodes is introduced. And a light guide member that emits light, and the operation state of the blower is displayed by light emitted from the vertical rail.

  In a seventh aspect based on the sixth aspect, the outlet cover is formed of a main grill member that substantially covers the outlet and a translucent resin that is combined on a vertical rail of the main grill member. A translucent grill member of a vertical beam is provided, and the vertical beam of the translucent grill member is arranged corresponding to each of the light emitting diodes, and the operation state of the blower is displayed by light emitted from the vertical beam of the translucent grill member. It is characterized by that.

  In the first aspect of the invention, the number of light emission of the light emitting diode is changed depending on the low speed operation state and the high speed operation state of the blower, and the number of light emission in the high speed operation state is larger than that in the low speed operation state. This is a quantitative display in which the driving strength state is expressed by the spread of the light emission width, and is easier to visually recognize than the conventional one-point display.

  In addition to the effects of the first invention, the second invention can display strong, medium, and weak switching by manual switch according to the spread of the light emitting diodes to be lit, and is easier to visually recognize than the conventional one-point display. Become.

  In the third invention, in addition to the effects of the first invention, the selection state by the switch can be visually recognized by the lighting state of the light emitting diodes arranged in a horizontal row, and the display is also when the rotation speed of the blower is in the low speed selection state. When the light emitting diode in the center is turned on and the number of light emitting diodes is increased to the left and right as the high speed selection state is reached, the state can be displayed as the number of lighting increases.

  In the fourth invention, in addition to the effects of the first invention, the lighting state of the light emitting diodes arranged in a horizontal row is repeatedly lit so as to move sequentially from the center to the left and right, so that the dynamic display from the stationary display is performed. Thus, an illumination effect is obtained, and the decorative effect is improved in addition to the display of the operating state of the blower.

  In the fifth invention, in addition to the effects of the first invention, the number of lighting of the light emitting diodes arranged in a horizontal row is repeatedly lit from the center to the left and right, changing from a static display to a dynamic display, an illumination effect. In addition to the display of the operating state of the blower, the decorative effect is improved.

  When trying to visually recognize the humidified operation state, a blowout port is mentioned as a part that is mainly watched. In the case of an ultrasonic humidifier, water vapor can be visually recognized from the outlet, but in the case of a vaporizing humidifier that humidifies by vaporizing water sucked up by a humidifying filter, this is not possible, so how much humidification operation is actually performed Is difficult to grasp even when looking at the outlet. However, in the sixth aspect of the invention, by displaying the operating state of the blower at the watched outlet, it is possible to provide a display that makes it easy to visually recognize the humidifying operation state even in the case of a vaporizing humidifier. In addition, since the vertical beam of the outlet cover is used, the decorative effect of the outlet, which is the main part of the humidifier, is improved without arranging the light guide member in an extra place.

  In the seventh invention, in addition to the effects of the first to fifth inventions, the structure of the outlet cover is combined with the light transmitting grill member on the main grill member, thereby simplifying the design, cost and assembly of the outlet cover. Etc. are taken into consideration. Moreover, the combination which can attach or detach a translucent grill member becomes suitable for the replacement | exchange when a translucent grill member is damaged or damaged, the cleaning when dirty, etc.

  In the humidifier of the present invention, the operation of the blower is selected by switching to a plurality of stages with a switch such as strong or weak, and compared with the number of light emitting diodes in the low speed operation state, The number of diodes that emit light is increased and displayed by a quantitative change. In addition, a plurality of light emitting diodes are arranged in a horizontal row and are repeatedly lit so that the light emission state sequentially moves in the horizontal direction from the center. Embodiments of the present invention will be described below.

  Next, an embodiment of the present invention will be described. 1 is a front perspective view of a humidifier according to the present invention, FIG. 2 is a front perspective view of a main body with the front panel of the humidifier according to the present invention removed, and FIG. 3 is a front view of the front panel of the humidifier according to the present invention. 4 is a front perspective view of the main body with the water tank pulled out with the front panel of the humidifier according to the present invention removed, FIG. 5 is a longitudinal side view of the humidifier according to the present invention, and FIG. 6 is the present invention. FIG. 7 is an exploded perspective view of the outlet cover of the display unit at the front upper part of the humidifier according to the present invention. Example 1 will be described below.

  In the figure, the humidifier 1 forms a housing by a main body 2 having a front opening and a front panel 3 detachably attached to the front surface of the main body 2 so as to close the front opening. A handle 1A is provided on the upper surface of the main body 2 so as to be foldable. The left and right sides of the front panel 3 are provided with flanges 3A that are bent upward and downward. On the left and right sides of the front surface of the main body 2, vertically long locking holes 2A are formed so that the hooks 3A can be hooked from above and below. Yes. With this configuration, the front panel 3 is detachably attached to the front surface of the main body 2.

  Inside the humidifier body 2, a water tank housing 2 </ b> S is formed in the lower part, an air blowing chamber 2 </ b> F surrounded by a partition plate 16 is formed above, and a tank housing chamber 18 is formed on the right side of the air blowing chamber 2 </ b> F. . A water tank 6 having an upper surface opening is provided in the water tank housing portion 2S at the lower part of the humidifier body 2, and the water tank 6 can be drawn and housed forward and backward with respect to the humidifier body 2 by a handle 6B at the lower front. The water tank 6 is divided into a filter chamber 6F on the left side and a tank chamber 6T on the right side by a partition wall 6C. A humidifying filter 7 is provided in the filter chamber 6F so that the lower part is immersed in the water therein. The filter 7 is removably supported between front and rear ribs 6D formed at the lower portions of the left and right side walls in the filter chamber 6F.

  In a state where the water tank 6 is slid from the front of the humidifier body 2 and stored in the water tank storage part 2S, the open / close lid 17 provided on the right side of the upper surface of the main body 2 is opened to enter the water supply tank 19 from above into the tank storage chamber 18. Is inserted into the tank chamber 6 </ b> T of the water tank 6. With this storage, the bottom of the water supply tank 19 is set in the recess 6A in the tank chamber 6T by its weight. As a result, a valve provided at the bottom of the water supply tank 19 is opened and water in the water supply tank 19 is supplied into the water tank 6, and a predetermined water level is maintained in the recess 6 </ b> A and the filter chamber 6 </ b> F in the water tank 6. The water supply tank 19 is made of a synthetic resin through which the water inside can be seen through. The water supply tank 19 is close to the back side of the front panel 3 while being stored in the tank chamber 18, and is located in the water supply tank 19 through a vertical window 3B formed in the front panel 3. The water level is visible.

  A blower 8 that is rotated by the electric motor 11 is housed in the blower chamber 2F. The blower 8 employs a centrifugal blower that is rotated by an electric motor 11 in order to obtain a sufficient static air pressure on the air inlet side of the humidifying filter 7, and representative examples thereof include a sirocco fan and a turbo fan. The humidifier 1 is composed of one horizontally long sirocco fan 8A, and the sirocco fan 8A is provided in a blower chamber 15F formed by a fan casing 15 having an opening 15A toward the water tank 6 in the blower chamber 2F. Yes. The sirocco fan 8A includes a large number of blades 14 extending in parallel to the left-right axis 13 at the peripheral edge thereof, and the sirocco fan 8A is provided with a support disk 12 having a boss portion at the center part on the left and right sides. An electric motor 11 is attached to the left and right direction shaft 13 attached to the boss portion outside the fan casing 15. In the front view, the sirocco fan 8A has a left side surface and a right side surface on the air suction side, and the sucked air is sent in the centrifugal direction from between the blades 14. The air sent from the sirocco fan 8A flows from the opening 15A toward the lower water tank 6 as shown by the arrow.

  The humidifier 1 is formed with an air inlet 4 and a humidified air outlet 5, and an air passage 10 is formed in the humidifier 1 so as to connect the inlet 4 and the outlet 5. ing. The ventilation path 10 includes a passage communicating from the suction port 4 to the blower chamber 15F in the fan casing 15, a passage extending from the blower chamber 15F through the opening 15A to the air inlet side of the humidification filter 7 in the water tank 6, and a humidification filter. A series of ventilation passages 10 is formed by a passage (a passage between the back side of the front panel 3 and the partition plate 16 in front of the fan casing 15) from the air outlet side of the front surface to the outlet 5.

  With such a configuration, the ventilation path 10 has a breathable humidifying filter 7 and a blower 8 disposed above the ventilation humidifying filter 7. The suction port 4 includes a filter 9 and is formed over the back surface and the left side surface of the main body 2, and the blowout port 5 is formed in the upper portion of the front panel 3. Reference numeral 20 denotes an electrical equipment box formed in a closed space behind the water tank 6, in which the electrical equipment 20A is accommodated.

  The humidifying filter 7 includes a fibrous filter 7B housed in a synthetic resin frame 7A, and the lower part of the filter 7B is housed in a state of being immersed in water in the water tank 6. The filter 7B has a configuration in which a large number of air passages 7C opened on the front and rear surfaces of the humidifying filter 7 are formed by vertical partitions 7B1 arranged at predetermined intervals and corrugated partitions 7B2 disposed between the partitions 7B1 and 7B1. . The vertical partition 7B1 and the corrugated partition 7B2 have a non-woven fabric structure made of chemical fiber, suck up the water in the water tank 6 by the capillary action of the filter 7B, and the air supplied by the blower 8 passes through the air passage 7C. While this blast passes through the air passage 7C, the sucked-up water is vaporized and becomes humid air, and is sent to the front side of the humidifying filter 7, and ascends the air passage 10 to generate moisture. It is sent out of the humidifier 1 from the outlet 5 and humidifies the air in the room where the humidifier 1 is installed.

  The operation of the humidifier 1 can be performed by supplying power to the electrical component 20 </ b> A, and an operation unit 21 including a plurality of switches 22 </ b> A to 22 </ b> E arranged in a horizontal row is provided on the front surface of the main body 2. . These switches 22A to 22E are used to select ON / OFF of the power source of the humidifier 1, selection of an operation mode, ON / OFF of the negative ion generator 25, setting of a timer, and the like. Based on this, the control circuit unit 23 constituted by the electronic circuit component 23A is operated to achieve the desired control. Further, based on detection by a humidity sensor (not shown), the humidity in the room is displayed on a humidity display unit 24 that displays liquid crystal.

  As one of the operation mode selections, the switch 22B is a switch that switches between automatic operation and continuous operation for each push operation. In the automatic operation state, the humidity is low based on detection of the humidity sensor (not shown). The control circuit unit 23 is operated automatically to increase the rotational speed of the blower 8 and decrease the rotational speed of the blower 8 as the humidity increases. Further, when the automatic operation state is switched to the continuous operation state by the push operation of the switch 22B, the blower 8 rotates at a high speed so as to send a strong wind, and the medium wind is sent again by the push operation of the switch 22B. Thus, the blower 8 is in the middle operation rotating at a medium speed, and further the weak operation in which the blower 8 rotates at a low speed so as to send a weak wind again by the push operation of the switch 22B. Then, the automatic operation state is switched again by pushing the switch 22B again.

  The humidifier 1 is provided with an operation display unit 30 so that the continuous operation state selected by the switch 22B can be visually recognized from the outside. The operation display unit 30 includes a plurality of light emitting diodes and a light guide member having a light emitting illumination surface that can guide the light of the light emitting diodes and visually recognize the light. In this embodiment, the light emitting diodes are composed of five light emitting diodes (referred to as LEDs) 31A to 31E arranged in a horizontal row on the base 23A of the control circuit unit 23 with the light irradiation surface facing the front. The light emitting diodes (referred to as LEDs) 31A to 31E are respectively arranged corresponding to the five through holes 32A to 32E formed on the upper front surface of the main body 2, and the light emitted from the light emitting diodes (referred to as LEDs) 31A to 31E correspond respectively. It is the structure irradiated from the through-holes 32A-32E ahead.

  The outlet 5 formed at the upper part of the front panel 3 is provided with an outlet cover 35 composed of a plurality of vertical bars 33 and a plurality of horizontal bars 34. The outlet cover 35 has a light emitting illumination surface. A light guide member is configured. A plurality of the vertical bars 33 are illuminated by light emitting diodes (referred to as LEDs) 31 </ b> A to 31 </ b> E, and the range in which the fan 8 shines is changed according to the operating state of the blower 8. It is possible to visually recognize the image and improve the decorative effect.

  For this reason, among the vertical bars 33, each of the vertical bars corresponding to the light emitting diodes (LEDs) 31A to 31E itself is made of a light-transmitting resin such as a transparent acrylic resin. Light from each of the light emitting diodes (LEDs) 31A to 31E may be introduced so that the light is emitted from the surface and used as a light emitting illumination surface. However, in the embodiment, the design, cost, and assembly structure are simple. In consideration of the above, a translucent grill member 35B formed of a translucent resin such as an acrylic resin is attached to and detached from the main grill member 35A constituting the air outlet cover 35 that substantially covers the air outlet 5 The transparent grill member 35B is used as a light guide member. This detachable combination is suitable for replacement when the translucent grill member 35B is broken or damaged, cleaning when it becomes dirty, and the like.

  This configuration will be described more specifically. Among the vertical bars 33, the five vertical bars corresponding to the light emitting diodes (LEDs) 31A to 31E are divided into upper and lower parts. The lower vertical beam portion 33K which is a part of the grill member 35A is a fixed vertical beam integrally formed with the horizontal beam 34 which is a part of the grill member 35A, but the upper vertical beam portions 33A to 33E are one end thereof. The light introduction end face 37 is connected by the connecting horizontal rail 36 at intervals corresponding to the through holes 32A to 32E to form the light transmitting grill member 35B. The main grill member 35A is formed of a transparent or translucent synthetic resin, and the translucent grill member 35B is formed of a transparent synthetic resin such as an acrylic resin.

  The upper vertical beam portions 33A to 33E of the translucent grill member 35B are respectively inserted into holes 38 formed in the uppermost horizontal beam 34A of the horizontal beams 34 and placed on the upper surface of the lower vertical beam portion 33K. When the front panel 3 is attached to the front surface of the main body 2 in this combined state, the light introduction end surface 37 abuts or approaches the front opening end portions of the through holes 32A to 32E to emit light. Light of diodes (referred to as LEDs) 31A to 31E is introduced from the light introduction end face 37 into the upper vertical beam portions 33A to 33E through the through holes 32A to 32E.

  The light from the light emitting diodes (referred to as LEDs) 31A to 31E introduced into the vertical bars 33A to 33E is transmitted through the vertical bars 33A to 33E and from the upper surface 39 which is a light emitting illumination surface of the vertical bars 33A to 33E. Thus, the upper surface 39 shines in the light emission colors of the light emitting diodes (LEDs) 31A to 31E. The light emitting diodes 31A to 31E may be selected from various colors such as orange, red, green, and blue.

  In order to increase the intensity of light visually recognized from the light emitting surface 39 of each of the vertical bars 33A to 33E, it is possible to take appropriate measures such as forming the lower side surfaces of the vertical bars 33A to 33E as irregular reflection surfaces.

  As described above, the operation of the blower 8 is switched to the three stages of strong, medium, and weak by the switch 22B, so that the light emitting states of the light emitting diodes (referred to as LEDs) 31A to 31E change. Specifically, in the weak operation state, the selection by the switch 22B is such that among the five light emitting diodes (LEDs) 31A to 31E, the central light emitting diode (LED) 31C emits light and passes through the through hole 32C. The vertical bar 33C emits light. Further, in the middle operation state, among the five light emitting diodes (referred to as LEDs) 31A to 31E, the light emitting diode (referred to as LED) 31C in the central portion and 31B and 31D on both sides emit light, and the through holes 31B, 32C and 31D are emitted. The vertical bars 33B, 33C and 33D emit light through. Further, in the strong driving state, all five light emitting diodes (referred to as LEDs) 31A to 31E emit light, and the vertical bars 33A to 33E emit light through the through holes 31A to 31E.

  In this way, the number of light beams of the light emitting diodes is changed according to the strength and weakness operation of the blower 8, and the light beam of the vertical beam corresponding to each light emitting diode is emitted, whereby the number of vertical beams that emit light of the strength and weakness operation state of the blower 8; In other words, the selected state can be visually recognized by the quantitative display by the left and right spread, and it becomes easier to visually recognize the strong operation and the weak operation by lighting the corresponding one light emitting diode. The decoration effect is also improved.

  In order to further improve the decorative effect of the humidifier 1, if the lighting state of the light emitting diodes (referred to as LEDs) 31 </ b> A to 31 </ b> E is moved sequentially from the center to the left and right, the light flows to the left and right. It becomes a dynamic display, and an illumination effect is also obtained.

  Further, as a method for improving the decorative effect of the humidifier 1, the lighting states of the light emitting diodes (referred to as LEDs) 31A to 31E are changed from the light emitting diode (referred to as LED) 31C in the center to the left and right light emitting diodes (referred to as LEDs) 31B. , 31D, 31A, 31E, by increasing the number of lights, the dynamic display of light spreading left and right, and another form of illumination effect is obtained.

  The present invention also has a further effect. Usually, when it is going to visually recognize the humidification driving | running state of a humidifier, a blower outlet is mentioned as a part mainly watched. In the case of the ultrasonic humidifier, the atomized water vapor can be visually recognized from the outlet, but as in the above embodiment, in the case of the vaporizing humidifier 1 that humidifies by vaporization of the water sucked up by the humidifying filter 7, this cannot be done. In fact, it is difficult to grasp how much humidification operation is actually performed by looking at the outlet 5. However, in the present invention, by displaying the operation state of the blower 8 at the watched outlet 5, it is possible to provide a display that makes it easy to visually recognize the humidification operation state even in the case of a vaporizing humidifier. Moreover, since the vertical beam 33 of the outlet cover 35 is used, the decorative effect of the outlet 5 which is the main part of the humidifier 1 is improved without arranging the light guide member in an extra place. Even when the display unit is provided on the removable front panel 3, in the present invention, since it is not necessary to connect a power supply line to the front panel 3, the attaching / detaching operation of the front panel 3 becomes extremely simple.

  When the switch 22B is in the automatic operation selected state, the operation of the blower 8 automatically changes in the range from the low speed operation to the high speed operation. In this case as well, the operation state of the blower 8 is divided into three levels of strong, medium and weak. Separately, when it is in its strong operating range, 5 light-emitting diodes (referred to as LEDs) are lit as described above, and when it is in the middle operating range, 3 of 5 light-emitting diodes (referred to as LEDs) Can be controlled as described above, and when in the weak operating range, one of the central portions of the five light emitting diodes (referred to as LEDs) can be controlled as described above.

  The present invention causes the cover of the outlet to emit light, and is not limited to the above-described form, and can be applied to various humidifier forms without departing from the technical scope of the present invention.

It is a front perspective view of the humidifier which concerns on this invention. Example 1 It is a main body front perspective view of the state which removed the front panel of the humidifier concerning the present invention. Example 1 It is a front perspective view of the front panel of the humidifier according to the present invention. Example 1 It is a main part front perspective view of the state where the water tank was pulled out in the state where the front panel of the humidifier concerning the present invention was removed. Example 1 It is a vertical side view of the humidifier which concerns on this invention. Example 1 It is an expanded sectional view of the display part of the front upper part of the humidifier which concerns on this invention. Example 1 It is a disassembled perspective view of the blower outlet cover of the display part of the front upper part of the humidifier which concerns on this invention. Example 1

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Humidifier 2 ... Humidifier main body 3 ... Front panel 4 ... Suction port 5 ... Outlet 6 ... Water tank 7 ... Humidification filter 8 ... Blower 10 ... Ventilation path 15 .. Fan casing 19 .. Water tank 21 .. Operation part 22 A to 22 E .. Switch 23 .. Control circuit part 30 .. Operation display part 31 A to 31 E.
32A to 32B ... Through hole 33 ... Vertical rail 33A-33E Upper vertical rail portion 33K Lower vertical rail portion 34 Cross rail 35 ... Outlet cover 35A Light grill member 37... Light introduction end surface 38... Hole 39.

Claims (7)

  In a humidifier in which a water tank is provided at the lower part of the humidifier body and a blower and a humidifying filter are arranged in a ventilation path communicating the suction port and the blowout port, a plurality of light emitting diodes that emit light according to the rotational speed of the blower The humidifier is characterized in that a small number of the light emitting diodes are made to emit light when the blower is in a low speed operation state, and a large number of the light emitting diodes are made to emit light at a higher speed operation state than the low speed operation state. .   In a humidifier in which a water tank is provided at the lower part of the humidifier body, and a blower and a humidification filter are arranged in a ventilation path that communicates the suction port and the blowout port, the rotational speed of the blower is switched between strong, medium, and weak. A manual switch and a display unit including a plurality of light emitting diodes for displaying a switching state by the switch are provided. When the selection by the switch is in a weak selection state, a small number of the light emitting diodes are emitted, and in a strong selection state, a large number of the light emitting diodes are emitted. The humidifier is characterized in that in the middle selection state, the number of the light emitting diodes intermediate between the weak selection state and the strong selection state is caused to emit light.   The plurality of light emitting diodes are arranged in a horizontal row, and when the number of rotations of the blower is in a low speed selection state, the light emitting diode in the center is turned on, and light emission is performed as the high speed selection state is reached. The humidifier according to claim 1 or 2, wherein the number of light-emitting diodes to be increased increases to the left and right.   The humidifier according to claim 1 or 2, wherein the plurality of light emitting diodes are arranged in a horizontal row and are repeatedly lit so that the lighting of the light emitting diodes sequentially moves in the left and right directions from the center.   The humidifier according to claim 1 or 2, wherein the plurality of light emitting diodes are arranged in a horizontal row, and the lighting range of the light emitting diodes is repeatedly lit from the center to the left and right.   The vertical beam of the outlet cover provided at the outlet is arranged corresponding to each of the light emitting diodes, and is constituted by a light guide member that introduces light emitted from the light emitting diodes, and by the light emitted from the vertical beams. The humidifier according to any one of claims 1 to 5, wherein an operating state of the blower is displayed.   The outlet cover includes a main grill member that substantially covers the outlet, and a translucent grill member of a vertical beam formed of a translucent resin combined on the vertical beam of the main grill member. 7. The humidification according to claim 6, wherein a vertical beam of a light grill member is arranged corresponding to each of the light emitting diodes, and an operating state of the blower is displayed by light emitted from the vertical beam of the light transmitting grill member. vessel.

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