JP2024017362A - humidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a humidifier that prevents occurrence of sanitation problems and enables reduction in the size.

SOLUTION: A humidifier includes: a casing 2; a tank that is provided to be attachable/detachable to/from the casing 2 and stores water; a humidification filter 4 for humidifying passing air; an air blowing part 5 for sending air that has passed through the humidification filter 4 to the outside of the casing 2; a pump that sends water for wetting the humidification filter 4; a pump supply pipe 7 connecting the inside of the tank and the pump with each other; and a filter return part 8 for returning water that has dripped from the humidification filter 4 to the pump supply pipe 7.

SELECTED DRAWING: Figure 5

COPYRIGHT: (C)2024,JPO&INPIT

Description

Application for application of Article 30, Paragraph 2 of the Patent Act Published at "THREEUP 2022 WINTER COLLECTION" held in Tokyo from May 18th to May 20th, 2020 May 25th to May 2020 Published at "THREEUP 2022 WINTER COLLECTION" held in Osaka on the 26th Published at "THREEUP 2022 WINTER COLLECTION" held in Fukuoka from June 1st to June 2nd, 2020

The present invention relates to a humidifier. More specifically, the present invention relates to a humidifier that blows air that has passed through a humidifying filter.

There are various types of humidifiers, such as vaporization type, ultrasonic type, steam type, and hybrid type. Among these, the vaporization type blows air that has passed through a humidifying filter. There are mainly the following first and second methods for moistening a humidifying filter in an evaporative humidifier. The first method is to immerse the lower part of the humidifying filter in water stored inside an aquarium, and draw up the water stored inside the aquarium into the humidifying filter by capillary action. In the first method, the lower part of the humidifying filter is immersed in water even when the humidifier is not operating, so the humidifying filter is always kept moist. For this reason, there has been a problem in that mold and bacteria are likely to grow on the humidifying filter, resulting in hygiene problems.

The second method is to supply water pumped from inside the aquarium to a humidifying filter that is placed above the aquarium at a distance from the aquarium. In the second method, the humidifying filter is not immersed in the water stored inside the water tank, so that the sanitary problems of the first method can be avoided to some extent. Humidifiers employing the second method are disclosed in Patent Documents 1 and 2 listed below.

Patent Document 1 listed below discloses an air cleaner with a humidifying function that includes a water tank, a blower, a vaporizing filter, a water supply means, and the like. The water supply means includes a water pump installed in the water tank and a water supply pipe extending from the water pump to above the vaporizing filter. Water in the water tank is pumped up through the water supply pipe to above the vaporization filter by driving the water pump, and is supplied to the top surface of the pleats of the vaporization filter from the water supply port. Excess water that has not been absorbed by the evaporative filter flows down into the water tank located below the evaporative filter.

Patent Document 2 listed below discloses a humidifier that includes a vaporizing filter, a filter guide, a water supply section, a water tank section, and an air blower. The water supply section is provided with a plurality of water injection holes at uniform intervals in the axial direction of the upper guide of the filter guide. The water supplied to the main body is temporarily stored in the water tank, pumped up by the pump mechanism to the water supply section located above the vaporization filter, and then supplied to the vaporization filter from the water injection hole provided in the water supply section.

Japanese Patent Application Publication No. 2017-89902 JP2012-97912A

However, conventional humidifiers still have the problem of being susceptible to hygiene problems. In either of the first and second methods described above, a water tank section for storing water to be supplied to the humidifying filter is provided inside the casing of the humidifier. For this reason, the humidity inside the entire housing increases due to evaporation of the water stored inside the water tank, making it easy for mold and germs to grow inside the housing. As described above, conventional humidifiers are prone to hygiene problems. In addition, space is required for the water tank, and the humidifier is large.

The present invention is intended to solve the above problems, and its purpose is to provide a humidifier that is less likely to cause hygiene problems.

Another object of the present invention is to provide a humidifier that can be downsized.

A humidifier according to one aspect of the present invention includes a casing, a tank that is detachably attached to the casing and stores water, a humidifying filter that humidifies air passing through the humidifying filter, and a humidifying filter that humidifies the air that has passed through the humidifying filter. A blower unit that blows air to the outside of the housing, a pump that sends water to wet the humidifying filter, a pump supply pipe that connects the inside of the tank and the pump, and water that drips from the humidifying filter is returned to the pump supply pipe. It is equipped with a reflux section for filters.

Preferably, in the humidifier, the filter reflux section includes a filter water receiver that receives water dripped from the humidifying filter, and a filter reflux pipe that returns the water received in the filter water receiver to the pump supply pipe. .

Preferably, in the humidifier, the filter reflux pipe includes a first filter reflux pipe that extends downward from the filter water receiver, and a first filter reflux pipe that connects the lower end of the first filter reflux pipe and the pump supply pipe. 2 filter reflux tubes.

Preferably, in the humidifier, the blowing section further includes a blowing section reflux section that sucks in air after passing through the humidifying filter and returns water adhering to the blowing section to the pump supply pipe.

Preferably, in the humidifier, the filter reflux section constitutes a part of the ventilation section reflux section.

Preferably, in the above humidifier, the blower reflux section includes a blower water receiver that receives water dripping from the blower, and a blower reflux that returns water received in the blower water receiver to the pump supply pipe. including tubes.

Preferably, the humidifier further includes a filter supply pipe that supplies the water sent by the pump to the humidification filter, and the filter supply pipe includes a plurality of filter supply pipes provided along the extending direction of the humidification filter at the upper part of the humidification filter. including each of the air outlets.

Preferably, in the humidifier, the housing includes an inlet provided at the rear of the humidifying filter and an air outlet provided at the upper part of the air blower, and the humidifying filter is provided at the rear of the air blower, and the housing includes an air inlet provided at the rear of the humidifying filter. The air sucked into the housing from the suction port passes through the humidifying filter and reaches the ventilation section, and the air that reaches the ventilation section is blown from the ventilation port to the outside of the housing. .

Preferably, the humidifier further includes a heating section that heats water flowing through the pump supply pipe.

According to the present invention, it is possible to provide a humidifier that is unlikely to cause sanitary problems. Furthermore, it is possible to provide a humidifier that can be made smaller.

FIG. 1 is a perspective view showing the configuration of a humidifier 1 in an embodiment of the present invention. FIG. 2 is a perspective view showing a humidifier 1 according to an embodiment of the present invention with a tank 3 removed. 2 is a sectional view taken along line III-III in FIG. 1. FIG. 2 is a sectional view taken along line IV-IV in FIG. 1. FIG. 2 is a sectional view taken along line VV in FIG. 1. FIG. 1 is a perspective view showing a state in which a humidifying filter 4 and the like are removed from a humidifier 1 according to an embodiment of the present invention.

Hereinafter, one embodiment of the present invention will be described based on the drawings. Note that the x-axis, y-axis, and z-axis in the drawings are orthogonal to each other. In the following explanations, the positive direction of the x-axis is right, the negative direction of the x-axis is left, the positive direction of the y-axis is forward, the negative direction of the y-axis is backward, the positive direction of the z-axis is up, and the negative direction of the z-axis is is sometimes written as below.

FIG. 1 is a perspective view showing the configuration of a humidifier 1 in an embodiment of the present invention. FIG. 2 is a perspective view of the humidifier 1 according to an embodiment of the present invention, with the tank 3 removed.

Referring to FIGS. 1 and 2, a humidifier 1 (an example of a humidifier) according to the present embodiment includes a housing 2 (an example of a housing), a tank 3 (an example of a tank), and an operation display section 13. It is equipped with such things as The housing 2 has a substantially rectangular parallelepiped shape. The housing 2 includes an air outlet 22 (an example of an air outlet), a base portion 23, a base portion protrusion 24, a right side surface 25, and the like. The air outlet 22 is an opening for blowing air from the inside of the housing 2 to the outside. The air outlet 22 is provided on the upper surface of the housing 2 . The base portion 23 has a circular shape when viewed from above the housing 2. The base portion 23 is provided at the lower part of the right side surface 25 of the housing 2 and protrudes rightward from the right side surface 25. The base portion protrusion 24 is provided at the center inside the base portion 23 . The right side surface 25 has an arc shape when viewed from above the housing 2 .

The tank 3 has a substantially cylindrical shape and is provided to be detachably attached to the housing 2. Water is stored inside the tank 3. The tank 3 includes a handle 31 provided at the top. The handle 31 is swingable about a swing shaft (not shown) provided at the top of the tank 3 . The tank 3 is attached to the housing 2 by engaging the lower part of the tank 3 with the upper part of the base part 23. The outer peripheral surface of the tank 3 has a shape corresponding to the right side surface 25. When the tank 3 is attached to the housing 2, a part of the outer circumferential surface of the tank 3 is in close contact with the right side surface 25 or is opposite to the right side surface 25.

When filling the humidifier 1 with water, the user removes the tank 3 from the base portion 23 by grasping the raised handle 31 and lifting the tank 3. The user refills the tank 3 with water and attaches the tank 3 to the base portion 23 again. A water supply valve (not shown) is provided at a position corresponding to the base protrusion 24 in the lower part of the tank 3. When the tank 3 is attached to the base portion 23, the water supply valve of the tank 3 is pushed upward by the base portion protrusion 24. Thereby, the pump supply pipe 7 described later and the inside of the tank 3 are connected to each other, and the water inside the tank 3 can be supplied to the inside of the pump supply pipe 7.

The operation display section 13 is provided on the top surface of the housing 2. The operation display section 13 includes an operation section 131 and a display section 132. The operation unit 131 receives operations on the humidifier 1 from the user. Specifically, the operation unit 131 accepts operations such as starting or stopping the humidifying operation, setting the air volume, and setting the timer. The display unit 132 provides various displays regarding the humidifier 1 to the user. Specifically, the display unit 132 displays the humidity, air volume, time remaining on the timer, and the like.

FIG. 3 is a sectional view taken along line III--III in FIG. FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. FIG. 5 is a sectional view taken along line VV in FIG. In addition, in FIG. 3, the position of the supply pipe 7 is shown by a dotted line.

Referring to FIGS. 3 to 5, the housing 2 further includes a suction port 21 (an example of a suction port). The suction port 21 is an opening for sucking air into the housing 2 from the outside. The suction port 21 is provided at the center of the rear side of the housing 2 .

The humidifier 1 includes a humidifying filter 4 (an example of a humidifying filter), an air blower 5 (an example of an air blower), a pump 6 (an example of a pump), a pump supply pipe 7 (an example of a pump supply pipe), and a filter. A reflux section 8 for a filter (an example of a reflux section for a filter), a reflux section 9 for a blower section (an example of a reflux section for a blower section), a filter supply pipe 10 (an example of a filter supply pipe), a heating section 11 (a heating section (for example) and a filter case 12. The flow direction of the air generated by the blower 5 is indicated by an arrow AR. The suction port 21, the humidifying filter 4, the ventilation section 5, and the ventilation port 22 are arranged in this order from the upstream side to the downstream side in the air flow direction indicated by the arrow AR.

The humidifying filter 4 is wetted with water and humidifies the air passing through it. The humidifying filter 4 is provided near the suction port 21 inside the housing 2 . A suction port 21 is provided at the rear of the humidifying filter 4. The humidifying filter 4 and the suction port 21 face each other in the front-rear direction. The humidifying filter 4 is made of, for example, a sheet-like nonwoven fabric with excellent water absorption, and has a shape folded in the left-right direction (pleated shape).

The air blower 5 sucks the air that has passed through the humidifying filter 4. The blowing section 5 blows the sucked air to the outside of the housing 2. A humidifying filter 4 is provided at the rear of the blowing section 5. The humidifying filter 4 and the air blower 5 face each other in the front-rear direction. The blowing section 5 is made of, for example, a sirocco fan, and includes blades 51, a blade case 52, a motor 53, and a rotating shaft 54. The blade 51 has a cylindrical shape. A number of fins extending parallel to the rotation axis 54 are each provided on the side surface of the cylindrical shape. The blade case 52 partially covers the blade 51. A large number of openings 521 are provided at the rear of the vane case 52 to suck in the air that has passed through the humidifying filter 4. An opening 522 for blowing out air toward the air outlet 22 is provided in the upper part of the blade case 52. The motor 53 is provided in front of the blade 51. A rotating shaft 54 extending in the front-rear direction is fixed to the motor 53. A blade 51 is fixed to the rotating shaft 54. The motor 53 rotates the blade 51 by rotating the rotating shaft 54 . The blade 51 rotates around a rotating shaft 54 . That is, the air blower 5 sucks air from the rear opening 521 by rotating the blade 51. The blowing unit 5 changes the traveling direction of the sucked air from the front to the top, and blows it out from the opening 522 toward the blowing port 22.

The air blower 5 may be provided upstream of the humidifying filter 4 in the air flow direction, and may suck in air before passing through the humidifying filter 4.

The pump 6 sends water to wet the humidifying filter 4. The pump 6 is provided near the lower part of the blower section 5 inside the housing 2 .

Pump supply pipe 7 connects the inside of tank 3 and pump 6 to each other. Water supplied from the inside of the tank 3 to the pump 6 flows through the pump supply pipe 7 . The pump supply pipe 7 is provided near the lower part of the blower section 5 inside the housing 2 and on the right side of the pump 6. It is preferable that the pump 6 and the pump supply pipe 7 be provided at the bottom of at least one of the humidifying filter 4 and the blowing section 5.

The filter reflux section 8 refluxes water dripping from the humidifying filter 4 to the pump supply pipe 7. The filter reflux section 8 includes a filter water receiver 81 (an example of a filter water receiver) and filter tubes 82 and 83 (an example of a filter reflux tube). The filter water receiver 81 receives water dripping from the humidifying filter 4. The filter water receiver 81 constitutes the lower part of the filter case 12 that covers the humidifying filter 4. The filter water receiver 81 has, for example, a conical shape that projects downward. An opening 811 is formed at the lowest position on the top surface of the filter water receiver 81. Thereby, water dripping from the humidifying filter 4 can be easily guided to the opening 811.

The reflux pipes 82 and 83 reflux the water received at the filter water receiver 81 to the pump supply pipe 7. The reflux pipe 82 extends downward from the opening 811 . The lower end of the reflux pipe 82 is connected to a reflux pipe 83. The reflux pipe 83 extends forward from the lower end of the reflux pipe 82. The front end of the reflux pipe 83 is connected to the pump supply pipe 7. It is preferable that the position of the pump supply pipe 7 connected to the reflux pipe 83 be downstream of the position of the pump supply pipe 7 heated by the heating unit 11 along the water flow direction. This allows the refluxed water to be heated.

The air blowing unit reflux unit 9 circulates water adhering to the air blowing unit 5 to the pump supply pipe 7. The ventilation section reflux section 9 includes a ventilation section water receiving section 91 (an example of a ventilation section water receiving section), ventilation section pipes 92 to 94 (an example of a ventilation section reflux pipe), and a filter reflux section 8. Contains. The air blower water receiver 91 receives water dripping from the air blower 5. The water receiving part 91 for the air blowing part constitutes the lower part of the blade case 52. The water receiving part 91 for the air blowing part has, for example, a conical shape that projects downward. An opening 911 is formed at the lowest position on the upper surface of the water receiving part 91 for the blowing part. Thereby, water dripping from the air blower 5 can be easily guided to the opening 911.

The reflux pipes 92 to 94 reflux the water received at the water receiving section 91 for the blowing section to the pump supply pipe 7. Reflux pipe 92 extends downward from opening 911 . The lower end of the reflux pipe 92 is connected to a reflux pipe 93. The reflux pipe 93 extends to the right from the lower end of the reflux pipe 92. The right end of the reflux pipe 92 is connected to a reflux pipe 93. The reflux pipe 93 extends rearward from the right end of the reflux pipe 92. The rear end of the reflux pipe 93 opens above the filter water receiver 81 .

The filter supply pipe 10 supplies water sent by the pump 6 to the humidifying filter 4. A part of the filter supply pipe 10 (not shown) is provided outside the filter case 12. The remaining portion of the filter supply pipe 10 is provided inside the filter case 12. One end of the filter supply pipe 10 is connected to the pump supply pipe 7. The other end of the filter supply pipe 10 extends above the humidifying filter 4 . The filter supply pipe 10 includes a vertical supply pipe 101, a horizontal supply pipe 102, and a plurality of air outlets 103 (an example of air outlets).

The vertical supply pipe 101 is connected to a filter supply pipe 10 (not shown) provided outside the filter case 12 and extends upward inside the filter case 12 . The upper end of the vertical supply pipe 101 is connected to a horizontal supply pipe 102.

The horizontal supply pipe 102 extends inside the filter case 12 from the upper end of the vertical supply pipe 101 in the direction in which the humidifying filter 4 extends (rightward). The horizontal supply pipe 102 is provided above the humidifying filter 4.

Each of the plurality of air outlets 103 is an opening provided in the horizontal supply pipe 102. Each of the plurality of air outlets 103 is provided in the upper part of the humidifying filter 4 along the extending direction (left-right direction) of the humidifying filter 4 . Each of the plurality of air outlets 103 spouts (supplies) water toward the humidifying filter 4 .

The heating unit 11 heats water flowing inside the pump supply pipe 7 . As a result, hot water is supplied to the humidifying filter 4. The heating section 11 is provided near the pump supply pipe 7. The heating unit 11 includes a heating wire, a PTC (Positive Temperature Coefficient) thermistor, or the like.

The filter case 12 covers the humidifying filter 4. The filter case 12 prevents the humidifying filter 4 from changing in shape due to an increase in weight due to moisture content of the humidifying filter 4. Filter case 12 is provided in front of suction port 21 .

FIG. 6 is a perspective view showing a state in which members such as the humidifying filter 4 are removed from the housing 2.

Referring to FIG. 6, a portion of the housing 2 near the suction port 21, the humidifying filter 4, and the filter case 12 are removable from the housing 2 body. Thereby, the suction port 21 and the humidifying filter 4 can be replaced and cleaned.

Next, the operation of the humidifier 1 will be explained.

Referring to FIGS. 3 to 5, when an operation to start the operation of humidifier 1 is received through the operation section, humidifier 1 rotates blades 51 of blower section 5 and drives pump 6.

Due to the rotation of the blades 51 (action of the blower section 5), air flows along the arrow AR as follows. Air outside the housing 2 is sucked into the interior of the housing 2 through the suction port 21. The sucked air moves forward inside the housing 2, passes through the humidifying filter 4, and reaches the blower section 5. Air is humidified when passing through the humidifying filter 4. The air that has reached the blower section 5 changes its direction of travel upward, and is blown to the outside of the casing 2 through the blower port 22 .

By driving the pump 6, water is supplied to the humidifying filter 4 as follows. Water inside the tank 3 is sent to the left via the pump supply pipe 7, heated by the heating section 11, and reaches the pump 6. The water that has reached the pump 6 is sent upward via the filter supply pipe 10 and is supplied toward the humidifying filter 4 from each of the plurality of air outlets 103 . The humidifying filter 4 is wetted by the supplied water.

The excess water adhering to the humidifying filter 4 can no longer be retained by the humidifying filter 4 and drips from the humidifying filter 4 due to gravity. Water dripping from the humidifying filter 4 is returned to the pump supply pipe 7 by the filter return section 8 as follows. Water dripping onto the filter water receiver 81 flows along the upper surface of the filter water receiver 81 into the opening 811 . The water flowing into the opening 811 flows from the opening 811 through each of the return pipes 82 and 83 in this order, is returned to the pump supply pipe 7, and joins with the water supplied from the water inside the tank 3. Thereafter, the water returned to the pump supply pipe 7 is heated by the heating unit 11 and is again supplied to the humidifying filter 4 via the filter supply pipe 10.

When the blower section 5 sucks in humid air after passing through the humidifying filter 4, water adheres to the blower section 5 (particularly the blades 51). The water adhering to the blowing section 5 is returned to the pump supply pipe 7 by the blowing section reflux section 9 and the filter reflux section 8 as follows. Water adhering to the air blowing section 5 drips from the air blowing section 5 to the water receiving section 91 for the air blowing section due to gravity. The water dripping onto the water receiving section 91 for the ventilation section flows along the upper surface of the water receiving section 91 for the ventilation section and into the opening 911 . The water flowing into the opening 911 flows through each of the reflux pipes 92, 93, and 94 in this order from the opening 911, and flows out from the opening at the end of the reflux pipe 94 to the upper surface of the filter water receiver 81. The water flowing out from the opening at the end of the reflux pipe 94 joins the water dripping from the humidifying filter 4 into the filter water receiver 81. Thereafter, the water flowing out from the opening at the end of the reflux pipe 94 is returned to the pump supply pipe 7 via the filter reflux part 8, and joins with the water supplied from the water inside the tank 3.

Note that the air blowing part reflux part 9 may return water adhering to the air blowing part 5 to the pump supply pipe 7 via the filter reflux part 8 as described above (that is, the filter reflux part 8 (It may constitute a part of the reflux section 9.) Further, the blowing section reflux section 9 may return the water adhering to the blowing section 5 to the pump supply pipe 7 through a route different from that of the filter reflux section 8.

[Effects of embodiment]

According to the embodiment described above, excess water adhering to the humidifying filter 4 is returned to the pump supply pipe 7 that supplies the water inside the tank 3 to the pump 6, and is supplied to the humidifying filter 4 again. Thereby, there is no need to provide a water tank portion with an exposed water surface inside the housing 2, and the overall humidity inside the housing 2 does not increase. As a result, mold and germs are less likely to grow inside the casing 2, and sanitary problems with the humidifier are less likely to occur. Furthermore, no space is required for the water tank, and the humidifier can be made smaller.

In addition, excess water adhering to the humidifying filter 4 is returned to the pump supply pipe 7, so a larger amount of water (excess water) than the predicted amount of vaporization in the humidifying filter 4 is supplied to the humidifying filter 4. be able to. As a result, the humidifying filter 4 can be reliably prevented from drying, and the humidifying performance of the humidifier 1 can be improved. Furthermore, it is possible to prevent mold and bacteria from growing inside the casing 2 due to excess water adhering to the humidifying filter 4.

Further, when the blowing section 5 sucks the humid air after passing through the humidifying filter 4, the water adhering to the blowing section 5 is returned to the pump supply pipe 7 by the circulation section 9 for the blowing section. Thereby, it is possible to prevent mold and bacteria from growing inside the casing 2 due to water adhering to the air blower 5.

In addition, when the filter reflux section 8 constitutes a part of the ventilation section reflux section 9, a reflux path for water adhering to the ventilation section 5 and a reflux path for excess water adhering to the humidifying filter 4 are separated. It can be used in common, and the humidifier can be made smaller.

Moreover, since water is supplied to the humidifying filter 4 from each of the plurality of air outlets 103 provided along the extending direction of the humidifying filter 4, water can be supplied over the entire humidifying filter 4, and the humidifying filter 4 The air passing through can be efficiently humidified.

Additionally, humidifiers generally have a lower air volume than circulators. Moist air is heavier than dry air, so it falls more easily. Therefore, by blowing air upward from the air outlet 22 on the top surface of the housing 2, a wide area outside the housing 2 can be uniformly humidified. In this case, by employing the air blowing unit 5 made of a sirocco fan, it is possible to realize an air flow in which air sucked from the suction port 21 on the side surface of the housing 2 is blown through the air blowing port 22 on the top surface of the housing 2. can. Moreover, in this case, by providing the humidifying filter 4 upstream of the air blower 5 in the air flow direction, the air passes through the humidifying filter 4 before the traveling direction is changed upward. Thereby, the humidifying filter 4 can be placed inside the casing 2 in an upright position, and an increase in the planar area of the casing 2 due to an increase in the area of the humidifying filter 4 can be suppressed.

Furthermore, by providing the heating unit 11, hot water is supplied to the humidifying filter 4, so that the air passing through the humidifying filter 4 can be efficiently humidified.

[others]

The reflux section 9 for the blowing section, the filter supply pipe 10, the heating section 11, the filter case 12, etc. may be omitted. The filter supply pipe 10 may be omitted, the pump 6 may be provided above the humidifying filter 4, and the water inside the tank 3 may be directly supplied from the pump 6 to the humidifying filter 4. The humidifier 1 may further accept, on the operation display unit 13, an operation in a ventilation mode in which only ventilation is performed without performing humidification. In this case, the humidifier 1 may rotate the blades 51 of the blower section 5 without driving the pump 6. The humidifier 1 may be installed in a heating appliance or the like having a humidifying function.

The embodiments described above should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims rather than the above description, and it is intended that all changes within the meaning and range equivalent to the claims are included.

1 Humidifier (an example of a humidifier)
2 Housing (an example of a housing)
3 Tank (an example of a tank)
4 Humidifying filter (an example of a humidifying filter)
5 Ventilation part (example of ventilation part)
6 Pump (an example of a pump)
7 Pump supply pipe (example of pump supply pipe)
8 Reflux section for filter (example of reflux section for filter)
9 Reflux section for the ventilation section (an example of the reflux section for the ventilation section)
10 Filter supply pipe (an example of a filter supply pipe)
11 Heating part (an example of a heating part)
12 Filter case 13 Operation display section 21 Suction port of the housing (an example of a suction port)
22 Ventilation port of the housing (an example of a ventilation port)
23 Base part of the housing 24 Base part protrusion of the housing 25 Right side of the housing 31 Handle of the tank 51 Blade of the ventilation part 52 Blade case of the ventilation part 53 Motor of the ventilation part 54 Rotation shaft of the ventilation part 81 Reflux part for the filter Filter water receiver (example of filter water receiver)
82, 83 Reflux pipe of filter reflux section (an example of a filter reflux pipe)
91 Water receiving part for the ventilation part of the circulation part for the ventilation part (an example of the water receiving part for the ventilation part)
92-94 Reflux pipe of the reflux part for the ventilation part (an example of the reflux pipe for the ventilation part)
101 Vertical supply pipe of the filter supply pipe 102 Horizontal supply pipe of the filter supply pipe 103 Air outlet of the filter supply pipe (an example of an air outlet)
131 Operation section of operation display section 132 Display section of operation display section 521, 522 Opening of blade case 811 Opening of water receiver for filter 911 Opening of water receiver for air blower

Claims (9)

A casing and
a tank that is removably attached to the housing and stores water;
A humidifying filter that humidifies the air passing through it,
a blower unit that blows the air that has passed through the humidifying filter to the outside of the housing;
a pump that sends water to wet the humidifying filter;
a pump supply pipe connecting the inside of the tank and the pump to each other;
A humidifier, comprising: a filter reflux section for refluxing water dripping from the humidifying filter to the pump supply pipe. The filter reflux part is
a filter water receiver for receiving water dripping from the humidifying filter;
The humidifier according to claim 1, further comprising a filter reflux pipe that returns water received in the filter water receiver to the pump supply pipe. The filter reflux tube is
a first filter reflux pipe extending downward from the filter water receiver;
The humidifier according to claim 2, further comprising a second filter reflux pipe that connects the lower end of the first filter reflux pipe and the pump supply pipe. The blowing unit sucks the air after passing through the humidifying filter,
The humidifier according to claim 1, further comprising an air blower reflux section that causes water adhering to the air blower to flow back to the pump supply pipe. The humidifier according to claim 4, wherein the filter reflux section constitutes a part of the blower section reflux section. The reflux part for the blowing part is
a water receiver for the air blower that receives water dripping from the air blower;
5. The humidifier according to claim 4, further comprising an air blowing part return pipe that returns water received in the air blowing part water receiving part to the pump supply pipe. further comprising a filter supply pipe that supplies the water sent by the pump to the humidifying filter,
The humidifier according to claim 1, wherein the filter supply pipe includes each of a plurality of air outlets provided in an upper part of the humidifying filter along an extending direction of the humidifying filter. The casing is
a suction port provided at the rear of the humidifying filter;
and a ventilation port provided at the top of the ventilation section,
The humidifying filter is provided at a rear part of the ventilation section,
Due to the action of the air blower, the air sucked into the housing from the suction port passes through the humidifying filter and reaches the air blower, and the air that has reached the air blower passes through the air blower. The humidifier according to claim 1, wherein air is blown outside the housing. The humidifier according to any one of claims 1 to 8, further comprising a heating section that heats water flowing through the pump supply pipe.