JP5327581B2 - Mist generator and bathroom air conditioner equipped with the same - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a mist generating device of a type that makes a liquid mist using a rotating rotor, and a bathroom air conditioner equipped with the mist generating device.

  There exists a thing described in patent document 1 as a specific example of a mist generator. In the mist generator described in the document, a disk-shaped rotor that can be driven and rotated is provided in a housing having a predetermined shape having a horizontal upper wall portion and a bottom wall portion. When water is supplied from above, the water is scattered around the rotor by centrifugal force. A plurality of collision wall portions are provided around the rotor, and when the water collides with the plurality of collision wall portions, the water is formed into fine water droplets, and mist is generated. The mist passes through an opening formed in the upper wall portion of the housing and is ejected above the housing. In addition, a drain outlet is provided in the lower part of the housing, and water which has not been ejected as mist above the housing out of the water scattered around the rotor is discharged from the drain outlet to the outside of the housing. It is configured as follows.

  However, the prior art has problems to be improved as described below.

  That is, when the mist generating device is installed in a bathroom, for example, for use in a mist shower, the mist generating device is prevented from becoming unsanitary, and the mist generated by the mist generating device is cleaned. It is requested to make it. In order to accurately meet such a demand, it is required to configure so that a large amount of water does not remain in the housing after the operation of the mist generating apparatus is finished, and the inside of the housing can be dried quickly. This is because the residual water in the housing is a factor that encourages the growth of mold and germs in the housing.

  On the other hand, in the prior art, the lower surface of the upper wall portion of the housing is horizontal. For this reason, when water splashes on the lower surface of the upper wall portion, a certain amount of water flows down onto the bottom wall portion of the housing due to gravity, but the other water is formed as water droplets of an appropriate size. It tends to remain on the lower surface of the wall. Thus, it is difficult to dry the lower surface to which water droplets adhere. In order to reduce residual water in the housing and make it excellent in hygiene, it is desirable to reduce residual water in places other than the upper wall portion of the housing, but the lower surface of the upper wall portion is the inner surface of the housing. Since there may be a relatively large proportion of the total area, it is important to prevent a large amount of water from remaining on the lower surface of the upper wall portion. The prior art has room for improvement in this respect.

  In addition, there exists a thing of patent document 2 as another example of a mist generator. In the mist generator described in this document, the upper wall portion 81 of the housing 80 and the rotor 82 are inclined in one direction as schematically shown in FIG. According to such a configuration, since water droplets attached to the lower surface of the upper wall portion 81 flow toward the lower end portion 81b along the inclination, the water droplets on the upper wall portion 81 are compared with the above-described Patent Document 1. It is possible to make it difficult to remain. However, in Patent Document 2, since the upper wall portion 81 is only inclined in one direction, the distance L between the upper end portion 81a and the lower end portion 81b of the upper wall portion 81 is very long. (The dimension is larger than the diameter of the rotor 82). This makes it difficult for water adhering to the vicinity of the upper end portion 81a to quickly reach the lower end portion 81b, and tends to increase the ratio of staying as water droplets before reaching the lower end portion 81b. Further, in Patent Document 2, the rotor 82 is also inclined corresponding to the inclination of the upper wall portion 81. However, in this case, the amount of water splashing downward from the rotor 82 and the amount of water splashing upward are uneven. Thus, it is not so preferable for stably generating mist having a uniform particle diameter. For the purpose of eliminating this, for example, as shown in FIG. 10B, when the rotor 82 is set horizontally, the difference between the dimensions h1 and h2 from the rotor 82 to the lower surface of the upper wall portion 81. Becomes very large. As a result, the space above the rotor 82 is unbalanced in the circumferential direction of the rotor 82, and air turbulence that makes mist generation unstable is likely to occur in the housing 80 when the rotor 82 rotates. The problem of becoming will arise.

JP-A-8-182727 Japanese Patent No. 3198907

  The present invention has been conceived under the circumstances as described above, and appropriately suppresses a large amount of liquid remaining on the inner surface of the upper wall portion of the housing when the operation is stopped. It is an object to provide a mist generating device suitable for drying the inside of the housing at an early stage and making it excellent in hygiene and the like, and a bathroom air conditioner equipped with the mist generating device.

  In order to solve the above problems, the present invention takes the following technical means.

Mist generating device provided by the first aspect of the present invention, have a top wall portion and bottom wall portion, and the whole or part of the upper surface of the bottom wall portion is closer to the center from the outer periphery toward the region of the upper surface A housing in which a liquid storage part capable of storing liquid is formed on the bottom wall part, and the upper wall part and the bottom wall part; A rotating plate housed in the housing so as to be disposed between the shaft and a shaft-like portion protruding downward from the rotating plate, and at the time of rotation, the liquid stored in the liquid storage portion Mist is generated by colliding the rotor that can be pumped up to the rotating plate by the shaft-like part and then scattered around the rotating plate , and the liquid that is provided around the rotor and that has scattered from the rotor. Multiple to let A mist generating device, comprising: a collision wall portion; and a mist ejection port for ejecting the mist from the inside of the housing to the outside, wherein the whole or part of the lower surface of the upper wall portion of the housing is An inclined surface that is inclined so that the height decreases as it advances from the region near the center of the lower surface toward the region near the outer peripheral edge, so that the liquid adhering to the lower surface can be advanced toward the outer peripheral edge of the lower surface; The plurality of collision wall portions are ribs provided between the upper wall portion and the bottom wall portion of the housing , and the gaps between the plurality of collision wall portions are directed toward the periphery of the housing. The lower end of the plurality of collision wall portions is connected to the upper surface of the bottom wall portion of the housing, which is the inclined surface, and the housing. of the upper wall of the The liquid that has advanced to the outer peripheral edge side of the surface is characterized by being can be guided on the bottom wall portion by Tsutawa to the plurality of the collision walls.

According to such a configuration, the liquid adhering to the lower surface of the upper wall portion of the housing travels toward the outer peripheral edge along the inclined surface of the lower surface, and then travels along the plurality of collision wall portions to the bottom wall portion of the housing. Led up. Therefore, after the operation of the mist generating device is stopped, it is prevented that a lot of liquid remains on the lower surface of the upper wall portion of the housing and remains for a long period of time. As a result, the entire inner surface of the housing can be easily dried at an early stage, which is preferable for making the inside of the housing hygienic. In particular, in the present invention, the inclined surface formed on the lower surface of the upper wall portion of the housing is different from the inclined surface of Patent Document 2 that is inclined in only one direction, and the outer peripheral edge from the region near the center of the inner surface of the upper wall portion. Since it is slanted so as to decrease in height as it moves toward the side area (for example, substantially conical), the collision wall portion is provided from the position where the height of the lower surface of the upper wall portion is the highest. For example, the distance to the position is a short distance such as about the radius of the rotor or slightly longer than that, and the liquid adhering to the inner surface of the upper wall portion can quickly reach the collision wall portion and be guided to the bottom wall portion. it can. Also, in the present invention, unlike Patent Document 2, it is not necessary to incline the rotor in one direction corresponding to the inclination of the lower surface of the upper wall portion of the housing.
Moreover, according to the said structure, at the time of operation | movement of a mist generator, the liquid of a liquid storage part can be pumped up with a rotor, and this can be made into mist appropriately. At that time, the liquid guided from the upper wall portion of the housing to the bottom wall portion can be effectively utilized for mist formation by being advanced to the liquid storage portion. On the other hand, when stopping the operation of the mist generating device, if the liquid supply to the liquid storage unit is stopped and the liquid in the liquid storage unit is made mist and consumed, not much liquid remains in the liquid storage unit. can do. Therefore, a large amount of liquid does not remain on the bottom wall portion of the housing, which is more suitable for drying the inner surface of the housing at an early stage.
Further, according to the above configuration, the mist generated by the liquid splashed around the rotor colliding with the plurality of collision wall portions passes through the gaps between the plurality of collision wall portions as they are and is ejected around the housing. Will be. Therefore, it is suitable for reducing the chance that the mist forms water droplets in the housing and increasing the amount of mist ejected to the outside of the housing.

  In a preferred embodiment of the present invention, the lower surface of the upper wall portion is a hydrophilic treatment surface.

  According to such a configuration, it is possible to make it difficult for droplets such as water droplets to be generated on the lower surface of the upper wall portion. Unlike the above configuration, when the lower surface of the upper wall portion is a water-repellent surface, droplets are likely to be generated on the lower surface, and the liquid is difficult to flow smoothly along the lower surface. In addition, the droplet is difficult to evaporate because the entire surface area is small compared to its volume. On the other hand, according to the above-described configuration, since generation of liquid droplets is suppressed, it is more preferable to prevent a large amount of liquid from remaining on the lower surface of the upper wall portion and dry the lower surface early. Become.

  In a preferred embodiment of the present invention, the bottom wall portion of the housing is provided with a liquid discharge hole, and when the rotor rotates and mist is generated, the liquid in the liquid storage portion Is prevented from being discharged from the hole to the outside of the housing, and when the rotor is stopped, the liquid in the liquid storage part can be discharged from the hole to the outside of the housing. ing.

  According to such a configuration, after the operation of the mist generating device is stopped, a large amount of liquid does not remain in the housing. In addition, when the operation of the mist generating device is stopped, the liquid has entered the housing for some reason. In some cases, the liquid can be discharged outside the housing.

  In a preferred embodiment of the present invention, the rotating plate of the rotor has a bent surface in which the lower surface of the outer peripheral edge is bent downward, or the upper surface of the outer peripheral edge is bent upward. When the rotor rotates, the liquid pumped up to the height of the lower surface or upper surface of the rotating plate by the shaft-shaped portion travels from the region near the center of the lower surface or upper surface of the rotating plate to the outer peripheral edge portion. After flowing along the bent surface, it is configured to scatter around it.

  According to such a configuration, the dispersion of the amount of scattering when the liquid is continuously scattered from the outer peripheral edge of the rotor rotating plate to the periphery thereof is reduced, which is preferable for stably generating mist ( Details will be described later with reference to FIGS. 6 and 7.

  The bathroom air conditioner provided by the second aspect of the present invention is a bathroom air conditioner that is installed above or above a bathroom and used for air conditioning of the bathroom, and is the first aspect of the present invention. The mist generator provided by is provided.

  According to such a configuration, an effect similar to that described for the mist generator provided by the first aspect of the present invention can be obtained. Moreover, it becomes possible to utilize a bathroom heating apparatus as a bracket of a mist generator, and the construction work of a mist generator can also be abbreviate | omitted or simplified.

  In a preferred embodiment of the present invention, hot air can be supplied toward the mist generator.

  According to such a configuration, it becomes possible to dry the housing and other parts of the mist generating device early and sufficiently by using warm air. Therefore, it becomes more preferable to make the mist generator excellent in hygiene.

  Other features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings.

  Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.

  1-5 has shown an example of the bathroom air conditioner provided with the mist generator to which this invention was applied, and the structure relevant to this. The bathroom air conditioner A shown in FIG. 1 is configured as a bathroom heater / dryer, and is attached to a ceiling 80 of a bathroom such as a unit bath. A mist generator MG1 is attached to the panel 41 provided in the lower part of the bathroom air conditioner A.

  As clearly shown in FIG. 2, the mist generator MG1 includes a housing H, a rotor 2, a motor M for driving and rotating the rotor 2, and hot water (hot water or non-heated water) for generating mist. A water supply pipe 92 for supplying the gas into H is provided. The water supply pipe 92 is provided with a valve V1 that can turn on / off the water supply or control the flow rate (see FIG. 1).

  The housing H includes an upper wall portion 10 and a bottom wall portion 11 that form a space for accommodating the rotor 2. In addition to the above, the housing H is also provided with a plurality of collision wall portions 12 and a plurality of mist jets 13 positioned around the rotor 2. The housing H is configured by assembling a cover body 19 on a housing body 1 whose overall schematic shape is a cup shape having an upper surface opening. Both the housing body 1 and the cover body 19 are made of synthetic resin. The housing H is disposed, for example, so that the upper portion thereof is in contact with the lower surface of the panel 41, and is fixed to the panel 41 using a screw member (not shown) or an appropriate bracket. Assembly of the housing body 1 and the cover body 19 is also performed using, for example, a screw member (not shown).

  The upper wall portion 10 of the housing H is configured using the cover body 19 and plays a role of preventing mist from being ejected from the upper opening of the housing body 1 to the upper side. In the present embodiment, the motor M is mounted on the upper wall portion 10 and also serves as a motor support member. An air inflow port 33 is provided at the center of the upper wall portion 10, and external air that has traveled through the gap between the motor M and the upper wall portion 10 can be advanced into the housing H. A substantially entire lower surface 10a of the upper wall portion 10 is an inclined surface 10a ′. The inclined surface 10a ′ has a conical surface or a curved surface that approximates to a conical surface that decreases in height as it moves from the region closer to the center of the lower surface 10a to the region closer to the outer peripheral edge (strictly, the illustrated inclined surface 10a ′ is A curved surface corresponding to the side surface of the truncated cone). The inclined surface 10 a ′ advances hot water adhering to the lower surface 10 a toward the outer peripheral edge, so that the inner peripheral surface of the ring-shaped portion 18 formed on the upper portion of the housing body 1 and the plurality of collision wall portions 12. Help reach the top.

  The lower surface 10a of the upper wall portion 10 is a hydrophilic treatment surface and has a specification that hardly generates water droplets. Preferably, in addition to the lower surface 10a, substantially the entire inner and outer surfaces of the housing H are treated as hydrophilic surfaces. Means for making the surface of each part of the housing H hydrophilic treatment surfaces include means for generating active species on the target surface, such as corona discharge treatment, plasma treatment, ultraviolet irradiation treatment, primers and other substances having excellent hydrophilicity. It is possible to employ a means for applying the material to the target surface or a means for roughening the target surface by etching or blasting the target surface. In addition to this, when the housing main body 1 and the cover body 19 are molded with resin, a means using a resin containing a hydrophilic material can be employed as the molding material.

  The bottom wall portion 11 of the housing H is recessed at the center, forming a liquid storage portion 14 that can store an appropriate amount of liquid. The water supply pipe 92 is inserted into the housing H so that hot water can be supplied to the liquid storage section 14. Of the upper surface 11 a of the bottom wall portion 11, at least the region near the outer peripheral edge located around the liquid storage portion 14 is formed as an inclined surface whose height decreases toward the center portion. This inclined surface is useful for allowing water droplets and the like existing near the outer peripheral edge of the upper surface 11a to flow into the liquid storage portion 14 and be collected.

  The rotor 2 is rotatably supported by a drive shaft 30 of the motor M, and includes a disk-shaped rotating plate 20 and a shaft-shaped portion 21 for pumping hot water that protrudes downward from the central portion of the rotating plate 20. Have. The shaft-like portion 21 has a conical shape or a truncated cone shape having a larger diameter toward the upper part. When the shaft-shaped portion 21 has such a shape, when the shaft-shaped portion 21 is rotated at a high speed, the hot water stored in the liquid storage portion 14 is filmed along the outer peripheral surface of the shaft-shaped portion 21. It is possible to raise it in the shape. When the hot water rises along the shaft-like portion 21 and is pumped up to the lower surface of the rotating plate 20, the hot water is accelerated from the region near the center of the rotating plate 20 toward the outer periphery by centrifugal force, and the rotating plate 20 Spatter around. Such an action of the rotor 2 itself is the same as that of a conventionally known one (for example, a rotor described in JP-A-2001-289470). The lower surface of the outer peripheral edge of the rotating plate 20 is a bent surface 20a that is inclined downwardly. The technical significance of this will be described later.

  The lower portion of the shaft-like portion 21 is inserted into a liquid discharge hole 16 provided at the bottom of the housing H. A gap of, for example, about 1 to 3 mm is formed between the hole portion 16 and the outer peripheral surface of the shaft-like portion 21. As described above, the hot water existing in the gap is always pumped upward by the action of the shaft-like portion 21 raising the hot water along the outer peripheral surface when the rotor 2 rotates. As a result, the hot water in the liquid storage unit 14 is appropriately prevented from leaking downward from the hole 16. Of course, when the rotation of the rotor 2 is stopped, the hot water in the liquid reservoir 14 flows out from the hole 16. If the hole 16 is provided, the hot water in the housing H can be discharged to the outside from the hole 16 when the operation of the mist generator MG1 is stopped. Further, for example, even when shower water used in a bathroom is applied to the housing H and the shower water enters the housing H, the water can be appropriately discharged from the hole 16 to the outside of the housing H. It becomes possible.

  The plurality of collision wall portions 12 of the housing H are parts for causing the water to collide when the rotor 2 rotates and water is scattered from the rotating plate 20 to the periphery thereof. It can be generated appropriately. As shown in FIG. 3, the plurality of collision wall portions 12 are in the form of ribs arranged radially around the central axis of the housing H at substantially equal intervals. The gap between the collision wall portions 12 adjacent to each other is opened substantially in the horizontal direction and downward, and this opening portion is the mist ejection port 13. Mist generated when water collides with the plurality of collision wall portions 12 passes through the plurality of mist outlets 13 as it is from the gaps between the plurality of collision wall portions 12 and is ejected around the housing H.

  Each collision wall portion 12 has a configuration in which the upper end is connected to the lower surface of the ring-shaped portion 18 of the housing body 1 and the lower end is connected to the upper surface 11a of the bottom wall portion 11 (see also FIG. 4). As a result, when the hot water adhering to the lower surface 10 a of the upper wall portion 10 reaches the inner peripheral surface of the ring-shaped portion 18, the hot water is then transferred to the inner surface side of the collision wall portion 12 and the bottom wall portion 11 is It is possible to lead to. In the present invention, unlike the present embodiment, it is formed so that the upper end of the collision wall portion 12 is in direct contact with the lower surface 10a of the upper wall portion 10, and the hot water on the lower surface 10a does not pass through the ring-shaped portion 18. It can also be configured to proceed directly to the collision wall 12. Moreover, since the collision wall part 12 should just exhibit the bridging function which advances hot water from the lower surface 10a of the upper wall part 10 on the bottom wall part 11, it is not connected with the upper wall part 10 or the bottom wall part 11 directly. May be. Since the hot water can pass through this gap if it is a small gap, a configuration is provided in which a small gap is formed between the upper wall portion 10 or the bottom wall portion 11 and the collision wall portion 12. You can also

  The bottom wall portion 11 is provided with one or a plurality of cylindrical portions 15a erected upward. A hole portion of the cylindrical portion 15a is an air inlet for allowing external air to flow into the housing H. 15 (see also FIG. 5). When external air flows into the housing H from the air inlet 15, the ambient air around the rotor 2 is prevented from becoming a turbulent state, and the hot water in the liquid storage unit 14 is pumped up along the shaft 21. This helps to stabilize the movement that proceeds toward the periphery of the rotating plate 20. The air inlet 33 provided in the upper wall portion 10 also serves to suppress the occurrence of turbulent flow in the housing H.

  As shown in FIG. 1, the bathroom air conditioner A includes a case 4, a fan 50, a heat exchanger 51 as a heating unit, and a control unit 7. The case 4 has a lower opening shape that houses the fan 50 and the heat exchanger 51 and is installed on the upper surface side of the ceiling plate 80 of the bathroom. The lower opening of the case 4 is blocked by the panel 41. ing. The panel 41 is provided with an air supply port 41a and a louver 42 having a blower port 41b.

  In the bathroom air conditioner A, when the fan 50 is driven, air is sucked into the case 4 from the air supply port 41 a and the air is heated by the heat exchanger 51. The heat exchanger 51 is configured by using a plurality of finned tubes to which hot water is supplied from a heat source device (not shown) such as a hot water supply device installed outside the bathroom, and the intake air by the fan 50 is used as the intake air. Heated when passing between the plurality of finned tubes. The heated air is guided to the louver 42 and blown out from the air blowing port 41b. The flow of air blown from the blower port 41b can be used to efficiently supply the mist blown from the mist generator MG1 to a desired region. The louver 42 can swing and adjust the angle, but can preferably be set to an angle at which hot air can be blown toward the housing H of the mist generator MG1. According to such a configuration, when the operation of the mist generating device MG1 is stopped, the housing H, the rotor 2 and the like can be dried at an early stage using hot air. The control unit 7 is configured using, for example, a microcomputer, and executes operation control of each unit of the bathroom air conditioner A in response to an operation command from an operation remote controller (not shown). The controller 7 also controls the driving of the motor M of the mist generator MG1 and the opening / closing operation of the valve V1.

  Next, the operation of the bathroom air conditioner A provided with the mist generator MG1 will be described.

  First, when the mist generating device MG1 is operated, hot water is supplied from the water supply pipe 92 to the liquid storage unit 14, and the motor M is driven to rotate the rotor 2. As described above, a part of the hot water stored in the liquid storage part 14 rises to the lower surface of the rotating plate 20 along the outer peripheral surface of the shaft-like part 21 by the rotating action of the shaft-like part 21 of the rotor 2. After that, it scatters around it and collides with a plurality of collision walls 12. Due to this collision, a lot of mist is generated in the gaps between the plurality of collision walls 12, and the mist passes through the mist outlet 13 as it is and is ejected around the housing H. Accordingly, it is possible to appropriately suppress water droplets in the housing H without much of the mist generated in the housing H being ejected to the outside, and to increase the amount of mist ejected. The mist ejected around the housing H can then be gradually lowered using gravity from the upper part of the bathroom, but the mist generating device MG1 uses the air flow blown from the air blowing port 41a. It can also be actively supplied to areas other than directly below. For this reason, for example, the amount of mist when the bather takes a mist shower can be increased to make the bather comfortable.

  When the mist is generated as described above, part of the hot water that has collided with the plurality of collision walls 12 adheres to the lower surface 10 a of the upper wall 10. Then, the hot water smoothly flows in the direction of the outer peripheral edge along the inclined surface 10a ′ of the lower surface 10a, and then travels along one of the plurality of collision wall portions 12 on the upper surface 11a of the bottom wall portion 11 of the housing H. Led to. Therefore, when the operation of the mist generator MG1 is stopped, it is possible to prevent a large amount of hot water from remaining on the lower surface 10a of the upper wall portion 10. As described above, the lower surface 10a is a hydrophilic treatment surface, and since hot water adhering to the lower surface 10a is prevented from dropping and staying, it is more thoroughly prevented that hot water remains on the lower surface 10a. can do.

  In addition, since the inclined surface 10a ′ is a conical surface or a curved surface approximate thereto, when hot water is attached to any position of the inclined surface 10a ′, the hot water is added to the peripheral portion of the inclined surface 10a ′. Among these, it progresses toward the position of the shortest distance from the adhesion position. In the prior art schematically shown in FIG. 10A, the hot water adhering to the upper end 81a needs to move toward the lower end 81b by a distance L larger than the diameter of the rotor 82. This is not the case, and hot water adhering to any position of the lower surface 10a can be rapidly and smoothly advanced over a short distance to the vicinity of the upper end of the collision wall portion 12. Further, the difference between the maximum and minimum dimensions h3 and h4 of the gap above the rotating plate 20 of the rotor 2 can be made considerably smaller than the difference between the gap dimensions h1 and h2 shown in FIG. For this reason, when the rotor 2 rotates, the air above the rotating plate 20 is also prevented from turning in an unbalanced state, and an effect of making air turbulence less likely to occur in the housing H can be expected.

  The hot water led to the bottom wall 11 through the plurality of collision walls 12 flows along the inclination of the upper surface 11 a of the bottom wall 11 and flows into the liquid storage unit 14. Thus, the hot water is effectively reused for mist generation. When the operation of the mist generating device MG1 is stopped, the hot water in the liquid storage unit 14 is made mist by rotating the rotor 2 for a while in a state where the hot water supply from the water supply pipe 92 to the liquid storage unit 14 is stopped. It is possible to reduce the remaining amount of hot and cold water in the liquid storage unit 14 by consuming. Thereafter, even if hot water remains in the housing 2 when the rotation of the rotor 2 is stopped, if the rotation of the rotor 2 is stopped, the hot water is supplied from the liquid discharge hole 16 to the housing. It is discharged outside H. Due to this discharge, hot water remaining on the bottom wall portion 11 of the housing H is reduced. As a result, in this mist generating device MG1, the entire area in the housing H can be dried quickly after the operation is stopped. In order to prevent the drainage liquid from directly flowing down from the hole 16 onto the floor surface of the bathroom, an appropriate piping member for drainage guide may be connected to the hole 16.

  The bent surface 20a provided on the rotating plate 20 of the rotor 2 causes the following action. That is, as schematically shown in FIG. 6, when the rotor 2 rotates and hot water in the liquid storage unit 14 is pumped up along the outer peripheral surface of the shaft-like part 21, strictly, the hot water is indicated by an arrow line La. As shown, the periphery of the shaft-like portion 21 rises spirally. When this hot water reaches the lower surface of the rotating plate 20 and proceeds in the form of a film toward the outer peripheral edge thereof, it proceeds in a spiral shape. For this reason, the thickness of the water film on the lower surface of the rotating plate 20 is not uniform, and a portion n1 having a large thickness tends to be generated periodically. In such a situation, as shown in FIG. 7 (which is also included in the technical scope of the present invention), the film-like shape described above is formed from the horizontal lower surface of the outer peripheral edge of the rotating plate 20. If the hot water is scattered as it is, the hot water will be in a pulsating state in which the amount of water has changed. From the viewpoint of stably generating mist, it is desired that such a phenomenon is suppressed. On the other hand, in this embodiment, as shown in FIG. 6, the thickness of a water film will be equalize | homogenized when the above-mentioned film-like hot water hits the bending surface 20a. Accordingly, hot water is continuously scattered around the rotating plate 20 in a substantially constant amount, which is preferable for stably generating mist.

  8 and 9 show another embodiment of the present invention. In these drawings, elements that are the same as or similar to those in the above embodiment are given the same reference numerals.

  In the mist generator MG2 shown in FIG. 8, the shaft-like portion 21 of the rotor 2 has a hole 210. In this embodiment, when the rotor 2 rotates, the hot water located in the hole 210 of the shaft-shaped part 21 out of the hot water in the liquid storage part 14 is a film along the inner peripheral surface of the hole 210 by centrifugal force. Ascends and reaches the upper surface of the rotating plate 20. Next, the hot water is accelerated by a centrifugal force on the upper surface of the rotating plate 20 to form a film, and is scattered toward the periphery of the rotating plate 20. Therefore, a rotor provided with the shaft-like portion 21 having such a configuration can also be used. In the present embodiment, in order to obtain the same effect as when the bent surface 20a of the above embodiment is provided, a bent surface 20b in which the upper surface of the outer peripheral edge of the rotating plate 20 is bent upwards may be provided. .

  In the mist generating device MG3 shown in FIG. 9, the shaft-like portion 21 of the rotor 2 is not inserted into the liquid discharge hole 16a of the bottom wall portion 11 of the housing H. However, a piping member 99 including an on-off valve V2 that can be remotely operated is connected to the hole 16a. According to the present embodiment, when the mist generator MG3 is in operation, the open / close valve V2 is closed so that the hot water in the liquid storage unit 14 does not pass through the hole 16a and is not discharged to the outside. . On the other hand, when the operation of the mist generating device MG3 is stopped, the open / close valve V2 is opened so that the hot water in the liquid storage section 14 is drawn out through the hole 16a and the piping member 99, and the interior of the housing H is quickly dried. Can be made.

  The present invention is not limited to the contents of the above-described embodiment. The specific configuration of each part of the mist generator according to the present invention and the bathroom air conditioner provided with the mist generator can be varied in design in various ways.

  The upper wall portion and the bottom wall portion of the housing referred to in the present invention are the wall portions of the housing that are positioned up and down so as to accommodate the rotor between them. Can be changed. The inclined surface formed on the lower surface of the upper wall portion is preferably formed on substantially the entire lower surface from the viewpoint of improving drainage, but is not limited to this, and is partially provided on the lower surface of the upper wall portion. It is also possible to adopt a configuration.

  As the rotor, as in Patent Documents 1 and 2, water is directly supplied on the upper surface using a water supply pipe or the like, and this water is directly scattered around the rotor by centrifugal force. You can also. The plurality of collision wall portions do not necessarily have a rib shape with a constant thickness. For example, the thickness may be non-uniform or bent in plan view. Further, from the viewpoint of increasing the amount of mist ejection, it is preferable to eject mist to substantially the entire outer periphery of the housing, but it is not limited to this. For example, the mist is ejected to a part of the periphery of the plurality of collision walls. A means for blocking the mist traveling from the mist ejection port or a means for closing the mist ejection port may be provided so that the mist is not ejected to a part of the outer periphery of the housing.

  The mist generating apparatus according to the present invention may be configured to be provided in a wall-mounted bathroom air conditioner that is attached to, for example, a location near the ceiling of the bathroom side wall, instead of the ceiling-mounted bathroom air conditioner. it can. Also, unlike this, the mist generating device is installed above or above the bathroom using devices / equipment other than the bathroom air conditioner, or brackets, etc., independently of the presence or absence of the bathroom air conditioner. It can also be used. The mist generating device according to the present invention is suitable for mist generation use in warm water or non-heated water in a bathroom (including a shower room), but is installed in a place other than the bathroom and is used for spraying liquid other than hot water or hot water (for example, It can also be used for humidification applications, application of liquids such as chemicals, and applications aimed at the negative ion effect accompanying mist generation.

It is a schematic sectional drawing which shows an example of the bathroom air conditioner provided with the mist generating apparatus which concerns on this invention. It is principal part sectional drawing of the mist generator shown by FIG. FIG. 3 is a plan cross-sectional view of the principal part of III-III in FIG. 2. It is IV-IV sectional drawing of FIG. It is a top view which shows the housing main body of the mist generator shown by FIG. It is a figure which shows typically the effect | action of the bending surface of the rotor of the mist generator shown by FIG. It is a figure which shows contrast with FIG. It is principal part sectional drawing which shows the other example of the mist generator which concerns on this invention. It is principal part sectional drawing which shows the other example of the mist generator which concerns on this invention. (A) is a figure which shows an example of a prior art typically, (b) is a figure which shows the modification typically.

Explanation of symbols

A Bathroom air conditioner MG1-MG3 Mist generator H Housing (of mist generator)
2 Rotor 10 Upper wall (housing)
10a Bottom surface (on top wall)
10a 'inclined surface 11 bottom wall (housing)
11a Top surface (bottom wall)
12 Collision wall part 13 Mist jet port 14 Liquid storage part 16, 16a Hole 20 for liquid discharge Rotating plate (of rotor)
20a, 20b Bent surface 21 Shaft-shaped part (of rotor)

Claims (6)

Have a top wall portion and bottom wall portion, and the whole or a part of the upper surface of the bottom wall, slope inclined so as height proceeds toward the inboard region from near the outer periphery region of the upper surface is lower A housing in which a liquid storage part capable of storing liquid is formed on the bottom wall part ,
The liquid storage part has a rotating plate accommodated in the housing so as to be arranged between the upper wall part and the bottom wall part, and a shaft-like part protruding downward from the rotating plate, and when rotating, the liquid storage part A rotor capable of being pumped up to the rotating plate by the shaft-like portion and then scattered around the rotating plate ;
A plurality of collision walls provided around the rotor and for generating mist by colliding liquid scattered from the rotor;
A mist ejection port for ejecting the mist from the inside of the housing to the outside;
A mist generating device comprising:
The whole or a part of the lower surface of the upper wall portion of the housing allows the liquid adhering to the lower surface to advance toward the outer peripheral edge of the lower surface, from the center region of the lower surface toward the outer peripheral region. It is an inclined surface that is inclined so that the height decreases as it advances,
The plurality of collision wall portions are rib-shaped provided between the upper wall portion and the bottom wall portion of the housing , and gaps between the plurality of collision wall portions are opened toward the periphery of the housing. And this opening portion is the mist ejection port,
The lower ends of the plurality of collision wall portions are provided to be connected to the inclined upper surface of the bottom wall portion of the housing, and the liquid that has advanced toward the outer peripheral edge of the lower surface of the upper wall portion of the housing A mist generating device characterized in that the mist generating device can be guided to the bottom wall portion along the collision wall portion.   The mist generator according to claim 1, wherein a lower surface of the upper wall portion is a hydrophilic treatment surface. The bottom wall portion of the housing is provided with a liquid discharge hole,
When the rotor rotates and mist is generated, the liquid in the liquid storage part is prevented from being discharged from the hole to the outside of the housing, and when the rotor is stopped, the liquid in the liquid storage part The mist generating device according to claim 1, wherein the mist generating device can be discharged from the hole to the outside of the housing . The rotating plate of the rotor has a bent surface where the lower surface of the outer peripheral edge is bent downwardly, or the upper surface of the outer peripheral edge is bent upwardly,
During the rotation of the rotor, the liquid pumped up to the height of the lower surface or upper surface of the rotating plate by the shaft-shaped portion travels from the region near the center of the lower surface or upper surface of the rotating plate to the outer peripheral edge portion. The mist generating device according to any one of claims 1 to 3, wherein the mist generating device is configured to flow along a bent surface and then scatter around the bent surface . A bathroom air conditioner installed above or above the bathroom and used to air condition the bathroom,
A bathroom air conditioner comprising the mist generator according to any one of claims 1 to 4 . The bathroom air conditioner according to claim 5, wherein hot air can be supplied toward the mist generator.

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