JP2015187540A - humidifier and air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a humidifier capable of preventing water droplets from being mixed in an air to be sent out from an air feed port and avoiding failure caused by the mixing-in of the water droplets, and to provide an air cleaner including the humidifier.SOLUTION: In a humidifier immersing a lower part of a disk-shaped holding frame 30 for storing and holding a humidification filter 31 in a water tank 6, passing an air through the humidification filter 31 containing water stored in the water tank 6 and generating and feeding a wet air including evaporated moisture, a transmission ring 32 configured as a ring gear with a diameter smaller than that of the holding frame 30 is circumferentially attached to one surface of the holding frame 30, which is an air input side, a transmission gear 51 of a drive unit 5 is engaged with the transmission ring 32; rotational driving force of the drive unit 5 is transmitted to the holding frame 30 through the transmission gear 51 and the transmission ring 32; and the holding frame 30 and the humidification filter 31 are rotated to pass the water attached to the outer periphery of the transmission ring 32 and scattered by action of an air flow to the inside of the holding frame 30 to cause the humidification filter 31 to absorb the water.

Description

  The present invention includes a humidifier configured to pass air through a humidifying filter containing water, and to send out the humid air derived from the vaporized moisture to the downstream side of the humidifying filter, and the humidifying device. It relates to an air purifier.

  In recent years, humidification devices for giving appropriate humidity to indoor air have been widely used due to an increase in health orientation. In particular, a vaporizing humidifier (see, for example, Patent Document 12) that achieves humidification without heating and evaporation of water can be adjusted without affecting the temperature in the room. doing.

  The vaporizing type humidifier is provided with a humidifying filter containing water and a blower fan inside a housing having an intake port and an air supply port, and is introduced into the housing through the intake port by the operation of the blower fan. The humidified air containing vaporized water sent to the downstream side of the humidifying filter is sent to the room through the air supply port. Note that the humidifier disclosed in Patent Document 12 is an air cleaner that has a deodorizing filter and a dust collecting filter juxtaposed on one side (upstream side of the air flow direction) of the humidifying filter, and also has a function of purifying the ventilation by these. It is configured as.

  The humidification filter is a sheet made of a material (nonwoven fabric or the like) that has high water content and can be ventilated, and is housed and held inside a hollow disk-shaped holding frame. The holding frame has openings for ventilation on both sides, and the air sucked from the intake port is introduced into the holding frame through the opening on one side, and the humidifying filter is housed and held in the holding frame And is moist air containing vaporized water and is derived from the opening on the other surface.

  The holding frame is supported on the upper part of the water tank for storing a fixed amount of water in a state where the lower part is immersed in the stored water in the water tank, and is driven to rotate at a low speed around the horizontal axis by the operation of the driving means. The humidifying filter is configured to absorb stored water at a rotation position immersed in the water tank, lift it by rotating together with the holding frame, and replenish water lost due to vaporization.

JP 2006-46729 A JP 2009-85511 A

  In the conventional humidifier as described above, the driving means for rotationally driving the holding frame includes a ring gear integrally provided on the outer peripheral surface of the holding frame, and a transmission gear meshing with the ring gear, and a driving source such as a motor. Is transmitted to the holding frame via the transmission gear and the ring gear, and the holding frame is rotationally driven.

  In the drive means configured as described above, the ring gear provided on the outer periphery of the holding frame is immersed in the stored water in the water tank on the rotation periphery of the holding frame, and rotates with the stored water attached. Here, the ring gear has a large number of teeth, and most of the adhering water is lifted while staying between the teeth and spreads around the entire circumference of the holding frame.

  On the other hand, an air flow from the intake port to the air supply port is generated around the holding frame, and therefore, the air flow causes the attached water on the outer periphery of the holding frame to be blown off and scattered to be sent out from the air supply port. As a result, it becomes impossible to obtain an appropriate humidified state as a result of water droplets being mixed into the air, and furthermore, water droplets adhere to the air supply port and its surroundings, making the user feel uncomfortable. There is also.

  The present invention has been made in view of such circumstances, and is a humidifier capable of preventing water droplets from being mixed into the air sent out from the air supply port and avoiding the occurrence of problems caused by the water droplets. And it aims at providing an air cleaner.

  A humidifying device according to the present invention includes a disk-shaped holding frame that houses and holds a humidifying filter, a driving unit that rotationally drives the holding frame around a horizontal axis, and a water tank in which a lower portion of the holding frame is immersed, In a humidifying apparatus that generates air that passes through the humidifying filter that contains the water stored in the water tank and rotates together with the holding frame, and generates and sends moist air containing vaporized moisture, the driving means is located outside the outer periphery of the holding frame. A rotation drive source arranged, a transmission ring that is coaxially provided on one surface of the holding frame on the air inlet side, and has a ring shape with a smaller diameter than the holding frame; and a rolling contact with the transmission ring And a transmission roller that rotates by driving of the rotational drive source.

  In the present invention, a transmission ring having a smaller diameter than that of the holding frame is provided on one surface of the holding frame that accommodates and holds the humidifying filter, and the holding frame is rotated by driving a rotation driving source having a transmission roller that is in rolling contact with the transmission ring. Let The transmission ring is provided on one side of the holding frame facing the air inlet side, and water droplets that adhere to the transmission ring and scatter due to the action of airflow are absorbed by the humidification filter inside the holding frame, Prevents water droplets from entering the air sent out from the air. The rotational drive source is disposed outside the outer periphery of the holding frame and does not hinder the flow of air passing through the holding frame.

  The humidifier according to the present invention is characterized in that an outer diameter of the transmission ring is set to be higher than a water surface of the stored water in the water tank.

  In this invention, the outer diameter of the transmission ring is set so as to be higher than the surface of the stored water in the water tank, and the water stored in the water tank is prevented from adhering to the transmission ring, and water droplets due to the action of airflow The generation of water droplets is suppressed more reliably by preventing the occurrence of water droplets.

  Moreover, the humidifying device according to the present invention is characterized in that the transmission roller and the transmission ring are gears formed with teeth on the entire circumference of the rolling contact surface thereof.

  In the present invention, the transmission roller and the transmission ring are made to mesh with each other, so that the rotation transmission from the transmission roller to the transmission ring is reliably performed. When the transmission ring is a gear, the amount of adhering water increases, but the water scattered by the action of the air flow is absorbed by the humidifying filter inside the holding frame, and therefore into the air sent from the air supply port. Water droplets can be prevented.

  An air cleaner according to the present invention includes a humidifying device having any one of the above-described configurations, and a deodorizing filter and a dust collecting filter arranged in parallel with the humidifying filter along the air flow path. To do.

  In this invention, the deodorizing filter arranged in parallel with the humidifying filter adsorbs and removes odorous components in the air, and the dust collecting filter also functions to collect and remove dust contained in the air. It becomes possible to fulfill the air cleaning function together with the function.

  In the humidifying device and the air purifier according to the present invention, a transmission ring having a smaller diameter than the holding frame is provided around one side of the holding frame that accommodates and holds the humidifying filter, and a rotational force is provided to the transmission ring. The water that adheres to the transmission ring and scatters due to the action of the airflow passes through the inside of the holding frame located downstream of the transmission ring, and is absorbed by the humidifying filter during this period. Therefore, it is possible to prevent water droplets from being mixed into the air sent out from the air supply port, to obtain an appropriate humidified state, and to adhere to water droplets around the air supply port. The present invention has excellent effects such as avoiding the occurrence and obtaining good usability.

It is an external appearance perspective view of an air cleaner provided with the humidification apparatus which concerns on this invention. It is a sectional side view which shows schematic structure of the air cleaner shown in FIG. It is a front view which shows the drive means of a humidification filter unit. It is a front view which shows other embodiment of the drive means of a humidification filter unit.

  Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. FIG. 1 is an external perspective view of an air cleaner provided with a humidifier according to the present invention, and FIG. 2 is a side sectional view showing a schematic configuration of the air cleaner shown in FIG. 2 shows the back as the right and the front as the left, and FIG. 1 is a perspective view seen from the back side (the right side in FIG. 2). In the following description, the front side is the front and the back side is the rear.

  The humidifier according to the present invention includes a blower fan 2, a humidifying filter unit 3, and a water tank 4 inside a rectangular box-shaped housing 1. As shown in FIG. 2, the interior of the housing 1 is divided by a partition wall 11 into a rear suction chamber 12 and a front discharge chamber 13. The suction chamber 12 communicates with the outside through a large number of air inlets 1515 provided on the rear panel 14 of the housing 1, and the discharge chamber 13 passes through an air supply port 16 provided on the top plate of the housing 1. Communicate with the outside. Further, the suction chamber 12 and the discharge chamber 13 communicate with each other through an opening 11 a provided in the lower part of the partition wall 11.

  As shown in FIG. 1, the rear panel 14 is detachable, and a deodorizing filter 17 and a dust collecting filter 18 are stacked on the front side of the rear panel 14. The deodorizing filter 17 is formed by, for example, dispersing and holding activated carbon in a nonwoven fabric, and acts to adsorb and remove odorous components in the air. The dust collection filter 18 is, for example, a known HEPA (High Efficiency Particulate Air) filter, and functions to collect and remove fine dust contained in the air. The deodorizing filter 17 and the dust collecting filter 18 are respectively integrated into a rectangular frame 17a, 18a made of synthetic resin and fitted into a filter chamber provided on the front side of the rear panel 14.

  The blower fan 2 includes an impeller 20 and a fan motor 21 that drives the impeller 20. The fan motor 21 is fixed to the lower part of the discharge chamber 13. The impeller 20 is fixed to the output end of the fan motor 21 that protrudes into the discharge chamber 13 and is disposed so as to face the opening 11 a below the partition wall 11. The impeller 20 of the blower fan 2 is rotated by driving a fan motor 21. When the impeller 20 rotates, as indicated by white arrows in FIG. 2, outside air is introduced into the suction chamber 12 through the intake ports 1515 provided in the rear panel 14. It flows forward in the interior, is sucked into the impeller 20 through the opening 11a at the lower part of the partition wall 11, is changed in the upward direction, is led out into the discharge chamber 13, and is discharged to the outside from the air supply port 16 at the end of the discharge chamber 13. Sent out.

  As described above, the suction chamber 12 and the discharge chamber 13 inside the housing 1 constitute a blower path in which the air flow described above is generated according to the operation of the blower fan 2. The deodorizing filter 17 and the dust collecting filter 18 are located on the upstream side of the air passage as described above, and the outside air introduced into the suction chamber 12 through the intake port 1515... The components are removed and clean air from which dust is removed by passing through the dust collection filter 18 is sent out through the air supply port 16 at the end of the discharge chamber 13.

  The humidification filter unit 3 and the water tank 4 are disposed between the dust collection filter 18 and the blower fan 2 in order to humidify the air flowing through the air passage as described above.

  The water tank 4 is a dish-shaped container having an open top, and is positioned in front of the dust collection filter 18 inside the suction chamber 12 by being fitted into a guide portion 19 provided on the bottom plate of the housing 1. As shown in FIG. 1, the water tank 4 slides along the guide portion 19 together with the humidifying filter unit 3 supported on the upper part of the water tank 4 as described later, so that the water tank 4 moves outward from one side surface of the housing 1. It is possible to pull it out. A wide tank receiver 40 is connected to the end of the water tank 4 on the drawer side, and a water supply tank 41 is attached to and detached from the tank receiver 40.

  The water supply tank 41 is a rectangular parallelepiped container having a water tap 42 at one end, and is attached to the tank receiver 40 in an inverted posture with the water tap 42 side facing downward. The water tap 42 incorporates a constant water level valve. When the water supply tank 41 is mounted on the tank receiver 40, the constant water level valve is pushed up by a push-up protrusion standing on the bottom surface of the tank receiver 40 and opened, and the water stored in the water supply tank 41 is sent into the water tank 4. The water level in the water tank 4 is kept constant.

  The humidifying filter unit 3 is configured by accommodating and holding a humidifying filter 31 inside a holding frame 30 having a hollow disk shape. The humidifying filter 31 is a sheet made of a material having a high water content and allowing ventilation, such as a non-woven fabric, and has a bellows shape as shown in FIG. 2 in order to increase the contact area with the air flowing inside the holding frame 30. The holding frame 30 is housed in the holding frame 30 with the overlapping width direction along the ventilation direction.

  FIG. 3 is a front view showing the driving means of the humidifying filter unit 3, in which a part of the water tank 4 is broken away. In FIG. 3, the water supply tank 41 attached to the tank receiver 40 on one side of the water tank 4 is not shown.

  As shown in FIG. 3, the humidifying filter unit 3 stands up substantially vertically on the bottom surface of the water tank 4 by placing the holding frame 30 on the two support rollers 6 and 6 provided inside the water tank 4. It is supported by. The support rollers 6 and 6 are rollers that rotate about the front-rear direction axis, are distributed on both sides of the water tank 4 in the longitudinal direction, and are in rolling contact with the outer peripheral surface of the holding frame 30 at each position. The humidifying filter unit 3 can rotate around the central axis with the rolling of the support rollers 6 and 6.

  As shown in FIG. 1, the humidified filter unit 3 supported in this way can be easily removed by pulling it out together with the water tank 4 from one side of the housing 1 and lifting it upward. Conversely, the lower part is inserted into the water tank 4 and placed on the two support rollers 6 and 6 to support the above-described posture, and in this state, the water tank 4 is pushed into the housing 1 and the It can be set at a predetermined position inside the housing 1. Such attachment / detachment of the humidifying filter unit 3 is performed for maintenance and replacement of the humidifying filter 31 housed in the holding frame 30 and further for cleaning the inside of the water tank 4.

  As shown in FIG. 23, the humidifying filter unit 3 includes a transmission ring 32 that is coaxially arranged on one surface (rear surface) of the holding frame 30. The transmission ring 32 is an annular ring having a smaller diameter than the holding frame 30 and is provided so as to protrude from the one surface. The illustrated transmission ring 32 is configured as a ring gear in which teeth are formed on the entire circumference of the outer peripheral surface. As shown in FIGS. 2 and 3, the transmission gear of the drive unit 5 disposed at the upper position of the holding frame 30. 51 is engaged.

  The drive unit 5 includes a transmission gear 51 and a drive gear 52 attached to one surface of the base 50, and a drive motor 53 attached to the other surface of the base 50, and a plurality of fixing screws 54 penetrating the base 50. , 54... Are fixed at appropriate positions on the end wall 11. The drive gear 52 is fitted to the output shaft of the drive motor 53, and the rotation of the drive motor 53 is transmitted to the transmission gear 51 via the drive gear 52, and the transmission gear 51 rotates. .

  As shown in FIGS. 2 and 3, the transmission gear 51 of the drive unit 5 is located on the front side of the holding frame 30 and is provided on the same side when the humidifying filter unit 3 is set at the predetermined position described above. Mesh with the transmission ring 32. By this meshing, the humidifying filter unit 3 is supported at three points in different circumferential directions by the two support rollers 6 and 6 inside the water tank 4 and the transmission gear 51 of the drive unit 5.

  The humidifying filter unit 3 supported in this manner is positioned so as to face the front side of the dust collection filter 18 and the rear side of the blower fan 2 inside the suction chamber 12, as shown in FIG. When driven, the rotation of the drive gear 52 is transmitted to the holding frame 30 via the transmission gear 51 and the transmission ring 32, and the humidifying filter unit 3 rotates around the central axis while maintaining the support state shown in FIGS. To do.

  As shown in FIG. 3, the transmission ring 32, a circular support ring 33 inside the transmission ring 32, and the support ring 33 are provided on the rear surface of the holding frame 30 (the surface facing the dust collection filter 18). A plurality of (six in the figure) support ribs 34, 34... Communicating with the outer periphery of the holding frame 30 are provided. The support ring 33 and the support ribs 34, 34... Are similarly provided on the front surface of the holding frame 30 (not shown).

  Further, the holding frame 30 includes an arcuate closing portion 35 that closes one place in the circumferential direction. The humidifying filter 31 inside the holding frame 30 is accommodated in a space excluding the closing portion 35, that is, in an accommodating space having a cross-sectional shape in which a circular part is cut out in an arcuate shape. .. Are supported from both the front and rear sides by the transmission ring 32 and from the rear side by the transmission ring 32.

  As shown in FIG. 3, the entire rear surface of the holding frame 30 is open except for the transmission ring 32, the support ring 33, the support ribs 34, 34. The holding frame 30 has a similar opening on the front surface (not shown), and the humidifying filter 31 inside the holding frame 30 is exposed to the outside from each opening. As described above, the humidifying filter 31 is configured by folding the sheet material in a bellows shape. In FIG. 3, the humidifying filter 31 exposed from each opening has a mountain-shaped fold line in front view. It is indicated by a solid line, and a valley-shaped folding line is also indicated by a broken line.

  The water tank 4 stores water at a constant water level as described above. In FIG. 3, the water level L of the stored water in the water tank 4 is indicated by a two-dot chain line. The lower part of the holding frame 30 that rotates as described above is immersed in the stored water of the water tank 4, and the stored water enters the holding frame 30 through the front and rear openings and is accommodated and held in the holding frame 30. Water is absorbed by the humidifying filter 31.

  The air cleaner configured as described above can perform a humidifying operation and a non-humidifying operation. In the humidification operation, the blower fan 2 is driven to generate the above-described air flow in the suction chamber 12 and the discharge chamber 13 in the housing 1, and the drive unit 5 (drive motor 53) is driven to It is carried out with rotation.

  As shown in FIG. 2, the humidifying filter unit 3 faces the air flow path in the housing 1 between the dust collection filter 18 and the blower fan 2, and sucks in through the intake ports 15, 15. The outside air sucked into the chamber 12 passes through the deodorizing filter 17 and the dust collection filter 18, and then is introduced into the holding frame 30 of the humidifying filter unit 3 through the rear opening, ventilates the humidifying filter 31, and opens the front opening. Is derived from At this time, the humidification filter 31 is rotating together with the holding frame 30 and is in a state of containing water throughout by absorbing water stored in the water tank 4 at the lower rotational position and lifting it up by rotation. Therefore, the air flowing in the holding frame 30 becomes humid air containing vaporized water by contacting the humidifying filter 31 containing water, and is sucked into the blower fan 2 and changes its direction as described above to change the direction of the discharge chamber 13. It flows upward through the inside and is sent out through an air supply port 16 that opens to the end of the discharge chamber 13. With the above operation, the room in which the air cleaner is installed can be humidified.

  In the above operation, transmission from the drive unit 5 to the humidification filter unit 3 is performed via a meshing portion between the transmission gear 51 of the drive unit 5 and the transmission ring 32 provided on the holding frame 30. Since the transmission ring 32 is immersed in the stored water in the water tank 4 as shown in FIG. 3 at the lower part on the rotation circumference, water adheres to the transmission ring 32, and this adhering water is separated from the holding frame 30. It is lifted upward by the rotation of. In particular, the transmission ring 32 of the embodiment is configured as a ring gear having a large number of teeth on the outer peripheral surface, and water adhering to the outer peripheral surface of the transmission ring 32 is retained and held between adjacent teeth. As a result, the adhesion water is lifted significantly.

  On the other hand, as described above, there is an air flow around the holding frame 30 including the transmission ring 32, and this air flow also acts on water adhering to the transmission ring 32. , Blown away and scattered. Here, the transmission ring 32 is provided as a ring having a smaller diameter than the holding frame 30 on the rear surface of the holding frame 30, that is, one surface upstream in the air flow direction. Since there are openings on both the inside and outside of the transmission ring 32, the adhering water scattered as described above enters the inside of the holding frame 30 through these openings and is absorbed by the humidifying filter 31 accommodated in the holding frame 30. .

  Therefore, the water adhering to the transmission ring 32 is not mixed as water droplets in the air led out to the front side (downstream side) of the holding frame 30, and this air is only vaporized water generated by contact with the humidifying filter 30. It becomes moist air containing and an appropriate humidification state is realized.

  In the above embodiment, the transmission ring 32 is a ring gear that meshes with the transmission gear 51 of the drive unit 5, and the transmission from the drive unit 5 to the humidifying unit 3 is performed by gear transmission. Further, an annular friction roller having a friction surface in rolling contact with the transmission roller of the drive unit 5 may be provided on the outer periphery, and the transmission from the drive unit 5 to the humidification unit 3 may be performed by friction transmission. Is effective, and an effect of preventing water droplets from being mixed into the humidified air can be obtained.

  On the other hand, the non-humidifying operation of the air cleaner is performed by stopping the rotation of the humidifying filter unit 3 and driving only the blower fan 2. At this time, the humidifying filter unit 3 has the rotational position shown in FIG. 3, that is, the string of the bow-shaped closing portion 35 provided on the holding frame 30 is above the water level L of the stored water in the water tank 4. And stops at a rotational position that is substantially parallel to. When the rotation of the humidifying filter unit 3 is stopped in this way, the humidifying filter 31 in the holding frame 30 does not immerse in the stored water in the water tank 4 and does not suck up new water. The air sent out is not humidified, and only the air cleaning function by the action of the deodorizing filter 17 and the dust collecting filter 18 is exhibited.

  FIG. 4 is a front view showing another embodiment of the driving means of the humidifying filter unit 3. In this embodiment, the outer diameter of the transmission ring 32 is made smaller, and as shown in the drawing, it is set to be above the water level L of the stored water in the water tank 4 even at the lowest part. As in the embodiment shown in FIG. 3, the transmission ring 32 is a ring gear having a large number of teeth on the outer periphery, meshed with the transmission gear 51 of the drive unit 5, and transmitted through the transmission gear 51. It is comprised so that it may rotate according to the drive. The position of the drive unit 5 is the same as that of the embodiment shown in FIG. 3, and the transmission gear 51 has a larger diameter than the transmission gear 51 of FIG. 3 so as to be able to mesh with the transmission ring 32 having a small diameter. . The other configuration and operation of the embodiment shown in FIG. 4 are the same as those of the embodiment shown in FIG. 3, and the same reference numerals as those in FIG.

  In the embodiment shown in FIG. 4, the transmission ring 32 is not immersed in the stored water in the water tank 4 during the above-described humidification operation, and the adhesion itself of water to the transmission ring 32 can be slightly suppressed. The adhering water blown off by the air flow enters the holding frame 30 through the opening on the rear surface and is absorbed by the humidifying filter 31. Accordingly, it is possible to more reliably prevent water droplets from being mixed into the air sent out through the air supply port 16 into the room.

DESCRIPTION OF SYMBOLS 3 Humidification filter unit 5 Drive unit 6 Water tank 30 Holding frame 31 Humidification filter 32 Transmission ring 51 Transmission gear (Transmission roller)

Claims (4)

A disk-shaped holding frame that accommodates and holds the humidifying filter; drive means for driving the holding frame to rotate about a horizontal axis; and a water tank in which a lower part of the holding frame is immersed; In a humidifier that passes air through the humidifying filter that rotates together with the holding frame, generates humid air containing vaporized moisture, and sends it out.
The driving means includes
A rotational drive source disposed outside the outer periphery of the holding frame;
A transmission ring that is coaxially provided on one surface of the holding frame that is the air entrance side and that has a ring shape with a smaller diameter than the holding frame;
A transmission roller that is in rolling contact with the transmission ring and rotates by driving of the rotational drive source;
The one surface of the holding frame is provided with a circular support ring inside the transmission ring, and a plurality of support ribs connecting the support ring to the outer periphery of the holding frame,
The humidifying device, wherein the rotational drive source is arranged on the opposite side of the transmission roller across the same plane as the one surface of the holding frame outside the outer periphery of the holding frame.   The humidifying device according to claim 1 or 2, wherein the rotation drive source is arranged in the same direction as a direction in which the conductive ring projects.   The humidifying device according to claim 1, wherein an outer diameter of the transmission ring is set to be higher than a water surface of the stored water in the water tank.   The humidifying device according to claim 1 or 2, wherein the transmission roller and the transmission ring are gears formed with teeth on the entire circumference of a rolling contact surface thereof.

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