JP5873142B2 - Mist generator - Google Patents

Description

  The present invention relates to a mist generator.

  Conventionally, a mist bath is performed by mist supplied to a space such as a bathroom, and a mist generating device is known as a device for generating the mist (see, for example, Patent Document 1). The mist generator of Patent Document 1 is provided with a water receiving portion that receives water supplied from a water supply portion, a water rising portion that increases in diameter toward the upper side, and a radially outward direction from the upper end of the water rising portion. A rotating body having a water scattering part and a collision part arranged around the rotating body are provided. This rotating body is arranged so as to be in contact with the water received by the water receiving portion, and by rotating, the water on the water receiving portion is transmitted to the surroundings in the order of the water rising portion and the water scattering portion. . The mist generator breaks the water droplets scattered from the rotating body by colliding with the collision part, and generates a mist having a small particle diameter.

JP 2009-285409 A

  By the way, when performing a mist bath, it is desired that the particle size of the mist used in the mist bath can be set according to a use, a user's liking, etc. However, with the mist generator of the above configuration, the generated particle size varies somewhat, but the particle size cannot be changed intentionally, and even mist size is set according to the application and user's preference etc. I couldn't do it.

  The present invention has been made in view of the above circumstances, and the object of the present invention is to generate a mist that can change the particle size of the mist to be generated and can release the mist according to the setting. To provide an apparatus.

  In order to solve the above-described problems, the mist generator of the present invention and the air conditioner for a bathroom with a fine mist generating function including the same are configured as follows.

The mist generating device of the present invention includes a water receiving portion that receives water supplied from a water supply portion, a water rising portion that has a larger diameter toward the upper side, and water splashing that protrudes radially outward from the upper end of the water rising portion. And a rotating body that is arranged so that the water rising portion is in contact with the water on the water receiving portion, and scatters the water on the water receiving portion around the water scattering portion by rotating by a motor, Mist generation with a collision part arranged around the rotating body, generating fine mist by colliding water droplets scattered from the rotating body with the collision part, and discharging this fine mist to the outside from the discharge port A first mode for performing an operation of releasing a fine mist having a predetermined particle size by operating a switch that is displayed to release the fine mist having a predetermined particle size. releasing a small fine mist particle sizes than the mode That than the first mode by operating the switch the display is in fact further comprising a second mode and a configurable mode setting unit for executing the operation to release the small fine mist particle sizes, the The rotating body is configured to be capable of changing the number of rotations, and the number of rotations of the rotating body in the second mode is larger than the number of rotations of the rotating body in the first mode.

The mist generator of the present invention includes a water receiving portion that receives water supplied from the water supply portion, a water rising portion that has a larger diameter toward the upper side, and water that protrudes radially outward from the upper end of the water rising portion. A rotating body that has a splashing portion and is arranged so that the water rising portion is in contact with the water on the water receiving portion and is rotated by a motor to splash the water on the water receiving portion around the water scattering portion. A mist that has a collision portion arranged around the rotating body, and generates a fine mist by colliding water droplets scattered from the rotating body with the collision portion, and discharging the fine mist to the outside from the discharge port. A first mode for executing an operation of releasing a fine mist having a predetermined particle size by operating a switch that is displayed to release the fine mist having a predetermined particle size. the small fine mist particle sizes than the first mode Further comprising a second mode and a mode setting section capable of setting a to execute the operation than out to the effect that the first mode using an operation of the switch is displayed in the releasing small fine mist particle sizes, The water supply unit is configured to be able to change a water supply amount, and the water supply amount of the water supply unit in the second mode is smaller than the water supply amount of the water supply unit in the first mode. It is characterized by being.

  According to the mist generator of the present invention and the air conditioner for a bathroom with a fine mist generating function provided with the mist generator, the particle size of the mist to be generated can be changed, and the mist corresponding to the setting can be discharged.

It is side sectional drawing of one Embodiment of the mist generator of this invention. (A) is a side view of the same mist generator, (b) is a bottom view of the same mist generator. It is the perspective view seen from the downward direction of the bathroom heating dryer with a mist sauna function of this embodiment. It is the piping schematic of the bathroom heating dryer with a mist sauna function same as the above. It is side sectional drawing of the bathroom heating dryer with a mist sauna function same as the above. It is a perspective view of the example of use with which the bathroom heating dryer with a mist sauna function of this embodiment was attached to the bathroom. It is a flowchart for demonstrating operation | movement of the mist generator of this embodiment. It is a flowchart for demonstrating the change of the setting of mist mode same as the above. It is the sectional side view which showed the modification of the mist generator.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1 and 2 show a mist generating device 4 of the present embodiment, and FIGS. 3 to 5 show a bathroom air conditioner with a fine mist generating function to which the mist generating device 4 of the present embodiment is attached. FIG. 6 shows an example of use in which this bathroom air conditioner with a fine mist generating function is installed. For convenience of explanation, the present embodiment will be described below based on the installation state in the usage example.

  The bathroom air conditioner with a fine mist generating function of the present embodiment is a bathroom heating dryer 1 with a mist sauna function, which is attached to the ceiling of the bathroom 13. As shown in FIG. 6, the bathroom heater / dryer 1 with a mist sauna function is connected to a heat source unit 14 provided outside the bathroom 13, and circulates a heat medium between the heat source unit 14. The heat source device 14 of the present embodiment is connected to a household water pipe, and uses hot water produced by heating water from the water pipe as a heat medium. The bathroom heater / dryer 1 with a mist sauna function is operated by a remote control operation unit 15 provided outside the bathroom 13, and various functions are operated by the remote control operation unit 15. The remote controller 15 includes a splash mist sauna operation switch, a fine mist operation switch, a fine mist sauna operation switch, a mode setting switch, a heating operation switch, a ventilation operation switch, a drying operation switch, a cool air operation switch, and the like. . In particular, in the present embodiment, the mode setting switch can finely set the particle size and the spray amount of the fine mist in the fine mist operation, and this mode setting switch constitutes the mode setting unit.

  The bathroom heater / dryer 1 with a mist sauna function of the present embodiment includes a mist function for performing a mist bath, a mist sauna function for performing a mist sauna bath, a heating function for performing indoor heating, a ventilation function for replacing indoor air, It has a drying function for drying clothes, a cool air function for sending cool air into the bathroom 13, and a hot air function for sending warm air into the bathroom. Among these functions, the mist function and the mist sauna function are a splash mist bath function for spraying a splash mist (a mist having a particle size of about 100 μm) and a fine mist (a particle size of about 15 to 60 μm, which is smaller than the splash mist). It has a fine mist bath function for releasing mist). Furthermore, this fine mist bath function has a plurality of modes corresponding to the mist concentration and the mist particle size. As shown in FIG. 5, the bathroom heater / dryer 1 with a mist sauna function of the present embodiment includes a mist generating device 4 that supplies fine mist into the bathroom 13 and a splash mist spray that supplies splash mist into the bathroom 13. It is comprised from the apparatus 3 and the apparatus main body 2 to which these mist generating apparatuses 4 and the splash mist spraying apparatus 3 were attached.

  The apparatus main body 2 forms the outline of the bathroom heater / dryer 1 with a mist sauna function. As shown in FIG. 3, the apparatus main body 2 includes a bottomed box-shaped apparatus casing 25 having a bottom surface above the ceiling and an opening at the bottom, and the opening of the apparatus casing 25 is closed and the upper surface is on the lower surface of the ceiling. And a grill plate 25a that abuts. The grill plate 25a has an air inlet 27 for taking indoor air into the apparatus, an openable / closable hot air outlet 30 for blowing out air such as warm air from the apparatus, and mist generation for attaching the mist generator 4. The apparatus attachment part 32 and the splash mist generating nozzle 10 which sprays a splash mist are provided.

  As shown in FIG. 5, the apparatus main body 2 accommodates therein a circulation passage 28 that communicates the air inlet 27 and the hot air outlet 30. The circulation passage 28 is configured such that air flows from the air suction port 27 toward the hot air outlet 30, and the flow of the circulating air is formed by the circulation fan 5 provided in the passage.

  A heating means 7 is provided in the circulation passage 28, and the heating means 7 heats the air flowing through the circulation passage 28. The heating means 7 of the present embodiment is configured by a hot air heat exchanger 7a. As shown in FIG. 4, the hot air heat exchanger 7a has a heat medium (hot water) from the heat source unit 14. It arrange | positions in the middle of the heating hot water pipe line 16 which circulates and distribute | circulates. A heating valve 8 is provided on the upstream side of the hot air heat exchanger 7a in the heating hot water pipeline 16, and by opening the thermal valve 8, the hot air heat exchanger 7a and the heat source machine are provided. The heating medium circulates between the two. 4 is a bathroom temperature sensor 9 that detects the temperature in the bathroom 13, and 17 is a hot water going-out temperature sensor 17 that detects the temperature of hot water (heat medium) from the heat source.

  As shown in FIG. 3, the bathroom heater / dryer 1 with a mist sauna function according to the present embodiment is provided with a plurality of splash mist generating nozzles 10 facing the inside of the bathroom 13 on the grill plate 25 a. The splash mist generating nozzle 10 emits a splash mist having a particle size of about 100 μm, and is arranged in three straight lines. Two nozzles on the nozzle opening / closing valve 29a side spray mild mist (with a mist spray amount of about 0.5 l / min), and in addition to the two on the nozzle opening / closing valve 29a side, the nozzle opening / closing valve 29b. One side is a nozzle that sprays hard mist (with a mist spray amount of about 1.0 l / min). As shown in FIG. 4, the splash mist generating nozzle 10 is connected to the splash mist pipe 20 b branched from the mist feed pipe 20 via nozzle opening / closing valves 29 a and 29 b. The mist water supply pipe 20 has one end connected to an external water supply pipe and the other end connected to a drain pipe. A strainer 23 and a water supply electromagnetic valve 22 are connected to the water supply pipe 20 for mist, and the heat exchanger 11 for mist is connected to the downstream side of the strainer 23 and the water supply electromagnetic valve 22, and further to the downstream side thereof. The splash mist conduit 20b is connected to the A drain electromagnetic valve 24 is connected further downstream than the branch portion of the mist water supply pipe 20 with the splash mist pipe 20b.

  The heat exchanger 11 for mist uses a heat medium circulating from the heat source unit 14 as a heat source. As shown in FIG. 4, the mist heat exchanger 11 is connected to a mist heating hot water pipeline 19 that is branched from the upstream side of the thermal valve 8 of the heating hot water pipeline 16. One end of the hot water pipe 19 for mist heating is connected to the upstream side of the thermal valve 8 of the hot water pipe 16 for heating, and the other end is connected to the downstream side of the hot air heat exchanger 7a. A water proportional valve 12 is provided upstream of the mist heat exchanger 11 in the mist heating hot water pipe 19, and a hot water return sensor 21 is provided along the pipe on the downstream side of the mist heat exchanger 11. Are arranged. This water proportional valve 12 is based on the detected temperature of the mist temperature sensor 18 that detects the temperature of the splash mist pipe line 20b, and the heat medium supplied to the mist heat exchanger 11 from the hot water pipe line 19 for mist heating. The supply amount is adjusted, and a heat medium having a flow rate necessary for obtaining a set temperature is supplied to the heat exchanger 11 for mist.

  As described above, the splash mist spraying device 3 of the present embodiment includes the mist water supply line 20 and the strainer 23, the water supply electromagnetic valve 22, the mist heat exchanger 11, the drain electromagnetic valve 24, the splash mist pipe 20b, and the nozzle opening / closing. The valve 29a, 29b and the splash mist generating nozzle 10 are configured. When water is supplied to the mist water supply line 20 with the drain electromagnetic valve 24 closed, the water that has flowed into the mist water supply line 20 passes through the strainer 23 and the water supply electromagnetic valve 22, and heat for mist. The exchanger 11 is heated by exchanging heat, and then reaches the splash mist generating nozzle 10 and is discharged from the splash mist generating nozzle 10 as splash mist.

  The mist generating device 4 is a device for discharging fine mist into the bathroom 13, and is attached to the mist generating device mounting portion 32 of the grill plate 25a. As shown in FIG. 3, the mist generating device mounting portion 32 is provided at the opening peripheral edge of the hot air outlet 30 of the grill plate 25 a, and faces the air inlet 27 through the hot air outlet 30. ing. As shown in FIGS. 1 and 2, the mist generating device 4 is housed in a decorative cover 39 that protrudes downward from the lower surface of the grill plate 25 a when attached to the grill plate 25 a and inside the decorative cover 39. A rotating body 34, a motor 6 that rotationally drives the rotating body 34, and a motor mounting plate 41 to which the motor 6 is attached are provided.

  The decorative cover 39 constitutes an outline of the mist generating device 4 and includes a water receiving portion 38, a discharge port 37, and a collision portion 36 therein. The decorative cover 39 is made of ABS resin by, for example, injection molding, and has a bowl shape with an upper opening. The bowl-shaped bottom portion is a dish-shaped water receiving portion 38 that is inclined downward toward the center. The water receiving portion 38 receives water supplied from the water supply portion 48 on its upper surface, and this upper surface. The water flowing through is guided to the lower end side of the rotating body 34. The water receiver 38 has a drain hole 52 penetrating vertically in the lowest part located at the center thereof. The drain hole 52 has a diameter C of about 15 mm, and the slope of the downward slope toward the drain hole 52 has an angle α with respect to the horizontal of about 20 °. A collision part 36 is continuously provided above the water receiving part 38 through the discharge port 37.

  The collision part 36 is a part for pulverizing water droplets scattered from the rotating body 34. The collision portion 36 includes a collision plate portion 35 connected to the upper end of the water receiving portion 38, and a rib 43 protruding inward of the collision plate portion 35, all of which are arranged around the entire circumference of the apparatus. It is provided over. The collision plate portion 35 has a cylindrical shape, and a motor attachment plate 41 is attached to the upper end thereof. As shown in FIG. 2A, the collision plate portion 35 is connected to the water receiving portion 38 via a rib 43 provided on the inner surface thereof. As shown in FIG. 1, a plurality of ribs 43 protrude from the inner peripheral surface of the collision plate portion 35 toward the center (inward and outward directions), and the ribs 43 are provided with a predetermined gap therebetween. It has been. The rib 43 is provided over the entire inner peripheral surface of the collision plate portion 35. Of these ribs 43, a slit-like opening formed by a pair of opposing ribs 43, the lower end of the collision plate portion 35, and the upper end of the water receiving portion 38 releases the mist generated by the collision portion 36 to the outside. It becomes the discharge port 37 for doing (refer FIG.2 (b)).

  The slit-shaped opening formed by the opposing rib 43, the lower end of the collision plate portion 35, and the upper end of the water receiving portion 38 is provided over substantially the entire periphery of the decorative cover 39 in plan view. As shown in 2 (b), only one of the plurality of openings is closed by the resin wall 40. The resin wall 40 and a pair of ribs 43 positioned on both sides of the resin wall 40 form a water passage 44 for mist. The water passage 44 for mist 44 is formed on the water receiving portion 38 from the lower end of the collision plate portion 35. To communicate. As shown in FIG. 1, the water supply channel 45 of the water supply unit 48 is disposed immediately above the water passage 44 for mist, and water discharged from the water supply port 45 is supplied to the water receiving unit 38. Guide water to

  The water supply unit 48 includes a water supply port 45 that supplies water to the water passage 44 for mist, and a branch water supply pipe 20a that connects the water supply port 45 and the water supply conduit 20 for mist. Water is supplied onto the part 38. As shown in FIG. 1, the water supply port portion 45 is provided so as to vertically penetrate the motor mounting plate 41, and a lower end thereof protrudes downward from the motor mounting plate 41. The lower end of the water supply port 45 is positioned higher than the upper end of the water receiver 38 by a predetermined dimension (for example, 30 mm). The opening on the upper end side of the water supply port 45 protrudes upward from the motor mounting plate 41 and is connected to the branch water supply pipe 20a as shown in FIG. The branched water supply pipe 20 a is branched from the downstream side of the water supply electromagnetic valve 22 of the mist supply pipe line 20 and from the upstream side of the mist heat exchanger 11. The branch water supply pipe 20a has a governor 46 for limiting the flow rate to about 20 ml / min to 70 ml / min, and an electromagnetic valve 47 with an adjustment valve that allows the flow rate to be changed. Thereby, the water from the mist water supply pipe 20 is supplied to the water supply port 45 via the governor 46 and the solenoid valve 47 with a regulating valve, and is supplied onto the mist water flow channel 44 via the water supply port 45. It falls and reaches the water receiver 38.

  As shown in FIG. 2A, a drain collecting unit 42 is continuously provided on the lower surface of the water receiving unit 38. The drain collecting unit 42 is provided with a predetermined gap (for example, about 4 mm) from the drain hole 52, and receives the drain that has dropped from the drain hole 52. The drain collecting part 42 has a shape like a shallow bowl having a dent toward the lower side, and a plurality of (for example, four) supporting ribs 53 project upward from the outer peripheral part thereof. The drain collecting portion 42 is fixed to the lower surface of the water receiving portion 38 by the support rib 53. The drain collecting part 42 is set slightly smaller in diameter (about 14.5 mm) than the diameter C of the drain hole 52 of the water receiving part 38 for the reason of the mold configuration for injection molding for forming the decorative cover 39. Has been. In addition, in FIG. 1, illustration of this drain collection | recovery part 42 is abbreviate | omitted.

  The rotating body 34 is rotated by the motor 6, and by rotating, the water on the water receiving portion 38 is sucked up and scattered toward the collision portion 36. As shown in FIG. 1, the rotating body 34 includes a water rising portion 50 whose diameter increases toward the top, and a water scattering portion 51 that protrudes radially outward from the entire upper end of the water rising portion 50. The rotation center part is connected to the drive shaft 6 a of the motor 6. The water rising portion 50 of this embodiment has an inverted frustoconical shape, and has a flat bottom surface at the lower end. The water rising portion 50 is inserted into the drain hole 52 in a state where the outer peripheral surface of the lower end portion faces the opening end surface of the drain hole 52 of the water receiving portion 38 via a predetermined gap H (about 1 mm). In the present embodiment, the lower end of the water rising portion 50 protrudes from the lower end of the drain hole 52 downward by about 3 mm (dimension G). From the upper end of the water rising portion 50, a water-spraying portion 51 having a disc-like shape in plan view that protrudes in the radially outward direction is continuously provided. doing. In addition, this rotary body 34 is comprised, for example from the rotor made from SPS resin.

  The lower surface of the water scattering part 51 and the outer peripheral surface of the water rising part 50 are each covered with a coating film containing a hydrophilic material component. For example, silicon oxide or the like is used as the hydrophilic material. As a result, the water rising up the water rising portion 50 is unlikely to become water droplets, and even if the rotational speed of the rotator 34 is 6,000 rpm, it is possible to prevent wind noise caused by the water droplets. In addition, it is possible to prevent the water rising toward the water splashing part 51 from traveling along the water rising part 50 from splashing during the ascent.

  The rotating body 34 of the present embodiment is disposed at a position where the outer peripheral end surface of the water scattering portion 51 faces the collision plate portion 35, and faces the protruding tip of the rib 43 protruding from the collision plate portion 35. Has been placed. The rotating body 34 is accommodated in a space surrounded by the decorative cover 39 and the motor mounting plate 41, and is connected and fixed to the drive shaft 6 a of the motor 6 with the motor mounting plate 41 interposed therebetween. And can be rotated freely.

  As shown in FIGS. 3 and 5, the mist generating device 4 of the present embodiment is fitted and fixed to the mist generating device mounting portion 32 provided on the grill plate 25 a in the assembled state.

  In the mist generating device 4 having the above-described configuration, when water is discharged from the water supply port 45 of the water supply unit 48, the water falls onto the water passage 44 for mist and flows down on the water receiving unit 38, It reaches the gap between the outer peripheral surface of the lower end and the drain hole 52. When the motor 6 is driven at this time to rotate the rotating body 34, the water that has reached the lower end of the rotating body 34 rotates with the rotating body 34 while being attracted to the surface of the rotating body 34 due to the hydrophilicity of the rotating body 34. . At this time, this water tends to move away from the center of the rotating body 34 due to the centrifugal force due to the rotation of the rotating body 34, but rotates without leaving the rotating body 34 due to the hydrophilicity of the rotating body 34 and rises as it is. Then, it reaches the lower surface of the water scattering portion 51 and finally splashes outward from the outer peripheral end of the water scattering portion 51. The scattered water violently collides with the inner surface of the collision plate and the plurality of ribs 43, and is shredded and crushed into fine mist-like water droplets. The mist-like water droplets are micro-sized fine mist, and the mist is discharged into the bathroom 13 through the discharge port 37.

  The bathroom heater / dryer 1 with a mist sauna function of the present embodiment is provided with a ventilation fan 26 inside the apparatus main body 2. The ventilation fan 26 is provided in a ventilation path that communicates the air suction port 27 with a ventilation port that faces the outdoors, and circulates air in the ventilation path from the air suction port 27 toward the ventilation port.

  The bathroom heater / dryer 1 with a mist sauna function of the present embodiment is subjected to various operation controls by the control unit. This control unit is configured by a microcomputer and also serves as a control unit for the mist generating device 4 and the splash mist spraying device 3. This control unit receives signals from the remote control operation unit 15 and detection signals from the bathroom temperature sensor 9, the hot water going-out temperature sensor 17, the mist temperature sensor 18, and the hot water return sensor 21. And the circulation fan 5 and the ventilation fan 26 are driven. For example, the control unit controls the circulation fan 5 based on the bathroom temperature sensor 9 to maintain the temperature in the bathroom 13 at a predetermined temperature, or opens the drain electromagnetic valve 24 for a certain period of time at the start of mist operation, The low temperature residual water accumulated in the mist heat exchanger 11 and the mist water supply pipe 20 is discharged to the outside.

  In addition, this control unit performs control to freely change the rotational speed of the motor 6 of the mist generating device 4 and also to freely change the opening degree of the electromagnetic valve 47 with adjusting valve. Control of the rotation speed of the motor 6 and the opening of the solenoid valve 47 with adjusting valve is performed based on a signal from a mode setting unit of the remote control operation unit 15. The rotational speed of the motor 6 is controlled by voltage control, for example, and the water supply amount is controlled by an actuator (not shown) such as a stepping motor used in the secondary pressure adjusting unit of the electromagnetic valve 47 with adjusting valve. ) Is controlled by driving.

  Next, an example of the operation and operation when performing mist and mist sauna using the bathroom heater / dryer 1 with mist sauna function of the present embodiment will be described.

  When the temperature of the bathroom 13 is low, a splash mist sauna operation is performed to increase the temperature. Splash mist sauna operation can discharge high temperature splash mist, and since it ejects mist of about 100 μm, which is a relatively large particle size, it has a high heat transfer capacity and is suitable for raising the temperature of the bathroom 13 from a low temperature. is there. First, the splash mist sauna operation switch of the remote control operation unit 15 is pressed. Then, a signal instructing the start of operation of the splash mist sauna is sent from the remote control operation unit 15 to the control unit. The control unit sends a command to the heat source unit 14, and the heat source unit 14 that has received the command starts operating. At the same time, the control unit opens the thermal valve 8 and the water proportional valve 12. When the thermal valve 8 is opened, a high-temperature heating medium (about 80 ° C. hot water) sent from the heat source device 14 starts to circulate through the heating hot water pipe 16, and when the water proportional valve 12 is opened, this high-temperature heat The medium begins to circulate through the mist heating hot water line 19. When the warm water temperature sensor 17 detects a predetermined temperature (for example, 60 ° C.) or higher, the control unit drives the circulation fan 5 and simultaneously opens the warm air outlet 30. Then, the air in the bathroom 13 is taken into the apparatus main body 2 from the air inlet 27, and hot air starts to be blown out from the hot air outlet 30. Thereafter, when the bathroom temperature sensor 9 detects a predetermined temperature (for example, 25 ° C.) or higher, the controller opens all or a part of the nozzle opening / closing valve 29 and sprays mist from the splash mist generating nozzle 10.

  In this way, when the temperature of the bathroom 13 is increased by the splash mist operation or when the temperature of the bathroom 13 is already high, the following operation is performed when the fine mist operation is performed. To perform the fine mist operation, the fine mist operation switch of the remote control operation unit 15 is pressed. Then, a signal instructing to start the operation of the fine mist is sent from the remote control operation unit 15 to the control unit, and the control unit starts the operation of the mist generating device 4. As shown in FIG. 7, the control unit turns on the motor 6 to rotate the rotating body 34 (step n1).

  Next, the control unit sends a signal for supplying water to the mist generating device 4 to open both the water supply electromagnetic valve 22 and the electromagnetic valve 47 with adjusting valve (step n2). Then, the water supplied from the mist water supply pipe 20 passes through the branch water supply pipe 20a, the governor 46, and the solenoid valve 47 with a regulating valve, falls from the water supply port 45 onto the mist water supply path 44, and receives water. It flows down on the portion 38 toward the drain hole 52. When the water that has flowed down on the water receiving portion 38 reaches the gap between the opening end of the drain hole 52 and the water rising portion 50 of the rotating body 34, the water rising portion 50 rotates along with the rotation of the rotating body 34. Ascending, it finally scatters from the outer peripheral end of the water scattering part 51 toward the tangential direction. The scattered water collides with the collision part 36 and becomes a fine mist that is crushed. The fine mist is discharged into the bathroom 13 through the discharge port 37 of the mist generating device 4.

  To change the mist concentration or mist particle size during this operation, press the mode setting switch. As shown in Table 1 below, the mode setting switch of the present embodiment can select a mode in which the water supply amount is changed in three stages between 20 to 70 ml. It is possible to select a mode in which the number of rotations of the rotating body 34 is changed in four steps within a range of 3000 to 6000 rpm with respect to the amount. This mode setting will be described in detail later.

  Thereafter, when stopping the fine mist operation, the fine mist operation switch of the remote control operation unit 15 is pressed again during the fine mist operation (step n3). Then, a signal for instructing the operation stop of the fine mist is sent from the remote control operation unit 15 to the control unit. The control unit closes the water supply solenoid valve 22 and the solenoid valve with adjustment valve 47 (step n4). The controller continues to drive the motor 6 for 1 minute from when the water supply is stopped (step n5), and then stops the motor 6 (step n6).

  Here, as described above, the bathroom heater / dryer 1 with a mist sauna function of the present embodiment can change the spray amount of the fine mist and the particle size of the mist to any one of a plurality of modes during the fine mist operation. It is like that. The mist generating device 4 of the present embodiment is automatically set to the standard mode (in the present embodiment, mode A-4 in Table 1) at the start of operation, and thereafter the mode setting is changed from this standard mode. Can be appropriately performed. Until this mode setting is changed, the operation in the standard mode is continued. In the present embodiment, this standard mode is set to a mode that can generate a mist having the smallest particle size. To change the mode setting from the standard mode, as shown in the flowchart of FIG. 8, first, the spray amount of fine mist is set, and then the particle size of mist is set. Table 1 shows the relationship between each mode, the amount of water supplied from the water supply unit 48, the number of rotations of the rotating body 34 (the number of rotations of the motor 6), and the particle size of the fine mist.

  The fine mist produced | generated by the said driving | operation becomes visible white haze-like mist, is supplied in the bathroom 13, and can cover the whole bathroom 13 space and can create a fantastic space. The bathroom heater / dryer 1 with a mist sauna function of the present embodiment is configured so that the spray amount of the fine mist can be changed in order to set the concentration of the white haze-like mist to a bather's desired concentration. Has been. More specifically, the B mode is selected by the mode setting switch when the haze density is desired to be slightly higher, and the C mode is selected by the mode setting switch when the haze density is desired to be higher. In the mode A, the amount of water supplied from the water supply unit 48 to the water receiving unit 38 is about 20 ml / min. When the mode B is selected, the water supply unit 48 supplies the water receiving unit 38 with water. When the water supply amount to be supplied is controlled to about 50 ml / min and the mode C is selected, the water supply amount supplied from the water supply unit 48 to the water receiving unit 38 is controlled to about 70 ml / min. Thereby, the bather can set the spray amount of the fine mist to a desired concentration.

  The fine mist is a fine mist of 15 to 60 μm, and has a characteristic that the body is difficult to get wet by the mist. However, when the particle size is increased by about 10 μm, the user feels very different. It becomes. Therefore, the bathroom heater / dryer 1 with a mist sauna function according to the present embodiment is configured to change the particle size of the fine mist so that the user can set the sensation of the mist as desired. Has been. Specifically, it is selected from mist particle sizes corresponding to the previously selected water supply amount (modes A to C in Table 1) (if the mode A in Table 1 is selected, 50 μm / 30 μm / Select either 25 μm / 15 μm). When the mist particle size is selected, the control unit performs control so that the rotating body 34 is driven at the corresponding rotation speed. Thereby, the bather can set the particle size of the fine mist to a desired size.

  The reason why the mist particle size is changed by changing the rotational speed of the rotating body 34 in this manner is considered to be as follows. When the number of rotations of the rotating body 34 increases, the kinetic energy given from the rotating body 34 in the process of rising while rotating increases the speed of the water that travels on the surface of the rotating body 34. When the speed at which the water scattered from the rotating body 34 scatters increases, the water collides with the collision unit 36 at a high speed, and the impact at the time of collision increases. This impact promotes shredding and crushing of water droplets. Therefore, the particle size of the generated mist becomes small.

  In the bathroom heater / dryer 1 with the mist sauna function configured as described above, the mist produced by the fine mist operation is a fine mist having a particle size of about 15 to 60 μm, and the particle size of the splash mist having a particle size of about 100 μm. Since the size can be made much smaller than that, even if a fine mist operation is performed while taking a bath, the body is hard to get wet, and it is possible to prevent a sensation when water droplets from the mist adhere to the body. . In addition, since the particle size of the mist discharged from the discharge port 37 can be set by the mode setting unit, it is possible to generate a mist having a particle size according to the application and user's preference.

  Moreover, since the mist generating apparatus 4 is attached to the opening peripheral part of the warm air blower outlet 30, the bathroom heating dryer 1 with a mist sauna function of this embodiment is produced | generated by the mist generating apparatus 4 when a fine mist sauna driving | operation is performed. The produced mist can be carried in the bathroom 13 by being put on the warm air discharged from the warm air outlet 30. Here, the fine mist generated by the mist generating device 4 is further reduced in particle size by being vaporized when hot air is blown, and if the mist has a particle size of 20 μm, the mist having a particle size of 10 μm or less. It becomes impossible to see the mist. In this case, if the mode setting unit is changed to a mode in which a mist having a particle size of about 50 to 60 μm can be discharged, even if the mist is vaporized by hot air, it becomes a mist having a particle size of about 20 μm. It can be. That is, even if the temperature in the bathroom 13 or the temperature of the hot air changes, it can be adjusted to a moderately white haze-like mist according to the user's preference.

  Moreover, the bathroom heating dryer 1 with a mist sauna function of this embodiment has the smallest particle size until the mode setting switch is operated from the start of operation of the mist generating device 4 until the mode setting unit is changed. Therefore, the difference in operation becomes clear with respect to the operation of the splash mist sauna performed earlier. In addition, when the mode setting is changed from the mode for releasing the mist having the smallest particle size, the mist having the larger particle size is changed to the mist having the desired particle size. It becomes easy to confirm whether it is or not by bodily sensation and visual observation. This is because, if the mist having a large particle size is set to be released from the initial stage of operation, the inside of the bathroom 13 is filled with the white haze-like mist having a large particle size, and the particle size is changed from that state. This is because even if the mist is changed to a small mist, it is difficult to confirm visually. In addition, when the mist having the smallest particle diameter is changed, the difference in body feeling with the splash mist having a particle diameter of about 100 μm can be more clearly felt.

  By the way, as for the mist generating apparatus 4 of this embodiment, the mode setting by a mode setting part cannot be changed in the fixed range by the relationship between water supply amount and rotation speed. This is because if the rotational speed of the rotating body 34 becomes too small for a predetermined water supply amount, the supplied water cannot be sucked up by the water rising portion 50 and a part of the water falls through the drain hole 52. Therefore, a lower limit value for changing the rotational speed of the rotating body 34 with respect to a predetermined water supply amount is determined. For example, when the amount of water supplied from the water supply unit 48 is about 70 ml / min and the rotational speed of the rotator 34 is 6000 rpm, the gap portion between the outer peripheral surface of the rotator 34 and the open end surface of the water receiver 38. All of the water that has reached the temperature rises by being pulled by the rotation of the water raising portion 50 without falling from this gap. On the other hand, when the number of rotations of the rotating body 34 is less than 4000 rpm when the amount of water supplied from the water supply unit 48 is about 70 ml / min, the outer peripheral surface of the rotating body 34 and the opening of the water receiving unit 38 are opened. A part of the water that has reached the gap portion with the end face falls from the gap. Therefore, in this embodiment, when the water supply amount is about 70 ml / min, the rotational speed of the rotating body 34 cannot be changed to less than 4000 rpm. Thereby, it is possible to prevent water falling from the drain hole 52 during rotation of the rotating body 34, and to prevent water from overflowing from the drain collecting unit 42.

  Next, another embodiment will be described. In addition, since this embodiment is the same as the said embodiment for the most part, it mainly demonstrates a different part.

  The mist generator 4 of this embodiment is also attached to the bathroom heating dryer 1 with a mist sauna function, as in the above embodiment. Although the mist generating device 4 of the above embodiment can set the mist particle size by changing the rotational speed of the rotating body 34, the mist generating device 4 of the present embodiment can reduce the mist particle size to the water. It can be set by changing the supply amount.

  As can be seen from Table 1 above, when the amount of water supply is increased at a predetermined rotational speed, the particle size of the mist increases accordingly. For example, when the water supply amount is changed in order of 20, 50, and 70 ml / min with respect to the rotational speed of 4000 rpm, it can be seen that the mist particle diameter changes in order of 30, 40, and 50 μm.

  Thus, it is thought that it is based on the following reason that the particle size of the mist produced | generated by changing the water supply amount of the water supply part 48 changes in order. When the water supply amount decreases, the thickness of the water layer flowing down the water receiving portion 38 becomes thinner. When the thickness of the water layer is reduced, the contact portion between the water and the water rising portion 50 is also reduced. Since the circumference of the water rising portion 50 becomes longer as it goes upward, the thickness of the water film on the outer periphery of the water rising portion 50 becomes thinner as it rises from the sucked-up portion. When the thickness of the water film is further reduced, the size of the scattered water mass is also reduced, and the particle size of the mist after being pulverized is also reduced. In addition to this, when the amount of water supply is reduced and the thickness of the water layer is reduced, the center in the thickness direction of the water approaches the lower end of the rotating body 34. Then, since the distance that the water ascends the water rising portion 50 of the rotating body 34 becomes longer and the time for rotating the water becomes longer, the kinetic energy given from the rotating body 34 becomes larger. Then, it is thought that the impact which collides with the collision part 36 also becomes large, and the particle size of mist becomes small in combination with the size of the above-mentioned scattered water mass becoming small.

  In the present embodiment, the rotational speed of the rotating body 34 is always set to 4000 rpm, and this rotational speed cannot be changed, but the water supply amount can be changed. When the particle size is selected by the mode setting unit provided in the remote control operation unit 15, a water supply amount corresponding to the particle size is supplied to the water receiving unit 38, and fine mist is generated.

  Furthermore, also in the mist generating apparatus 4 of this embodiment, the mode setting by the mode setting unit cannot be changed within a certain range due to the relationship between the water supply amount and the rotation speed. This is because if the amount of water supplied becomes too large for a predetermined number of revolutions, the supplied water will not be sucked up by the water riser 50 and will fall through the drain hole 52. The upper limit for changing the supply amount is determined. For example, in the case of the present embodiment (rotation speed 4000 rpm), when the amount of water supplied from the water supply unit 48 is about 50 ml / min, the gap between the outer peripheral surface of the rotating body 34 and the open end surface of the water receiving unit 38. All of the water that has reached the region does not fall from this gap, but rises by being pulled by the rotation of the water raising portion 50. However, when the amount of water supply exceeds about 70 ml / min, a part of the water that has reached the gap between the outer peripheral surface of the rotating body 34 and the open end surface of the water receiving portion 38 falls from the gap. Therefore, in this embodiment, the water supply amount cannot be changed to about 70 ml / min or more. Thereby, it is possible to prevent water falling from the drain hole 52 during rotation of the rotating body 34, and to prevent water from overflowing from the drain collecting unit 42.

  Of course, in the mist generating device 4 of the present invention, the rotational speed of the rotating body 34 is not limited to 4000 rpm, and the change upper limit value of the water supply amount is not limited to 70 ml / min.

  The mist generating device and the bathroom air conditioner with a fine mist generating function according to the present invention have been described based on the bathroom heating dryer 1 with a mist sauna function. However, the heating only function, the drying function, the ventilation function, the cool air function, and the temperature The wind function is not a necessary function.

  Moreover, in the said embodiment, although the drain hole 52 was pierced in the bottom part of the water receiving part 38, in the mist generator of this invention, it is not necessarily a required structure. In this regard, for example, as shown in FIG. 9, the water receiving portion 38 may have a shape in which the drain hole 52 is not provided.

  Further, in the present embodiment, the operation is controlled so that the operation is started in the standard mode when the operation of the mist generating device 4 is started. However, the mist generating device of the present invention may not necessarily be. Further, this standard mode may be appropriately changed by the user according to his / her preference.

DESCRIPTION OF SYMBOLS 4 Mist generator 6 Motor 6a Drive shaft 34 Rotor 35 Collision board part 36 Collision part 37 Colliding part 37 Release port 38 Water receiving part 39 Cosmetic cover 41 Motor mounting plate 43 Rib 44 Mist water passage 45 Water supply part 48 Water supply part 50 Water Ascending part 51 Water scattering part 52 Drain hole

Claims (2)

A water receiving portion for receiving water supplied from the water supply portion;
It has a water rising portion that has a larger diameter toward the upper side and a water scattering portion that protrudes radially outward from the upper end of the water rising portion, and is arranged so that the water rising portion contacts the water on the water receiving portion. A rotating body that causes the water on the water receiving portion to scatter around the water scattering portion by being rotated by a motor;
A collision portion arranged around the rotating body,
A mist generating device that generates fine mist by causing water droplets scattered from a rotating body to collide with a collision part, and discharges the fine mist to the outside from an outlet,
A first mode for performing an operation of releasing a fine mist of a predetermined particle size by operating a switch that is displayed to release the fine mist of a predetermined particle size;
A second operation is performed to release a fine mist having a particle diameter smaller than that of the first mode by operating a switch that is displayed to emit a fine mist having a particle diameter smaller than that of the first mode. A mode setting unit that can set the mode of
The rotating body is configured to be able to change the number of rotations,
The mist generator according to claim 1, wherein the rotational speed of the rotating body in the second mode is larger than the rotational speed of the rotating body in the first mode. A water receiving portion for receiving water supplied from the water supply portion;
It has a water rising portion that has a larger diameter toward the upper side and a water scattering portion that protrudes radially outward from the upper end of the water rising portion, and is arranged so that the water rising portion contacts the water on the water receiving portion. A rotating body that causes the water on the water receiving portion to scatter around the water scattering portion by being rotated by a motor;
A collision portion arranged around the rotating body,
A mist generating device that generates fine mist by causing water droplets scattered from a rotating body to collide with a collision part, and discharges the fine mist to the outside from an outlet,
A first mode for performing an operation of releasing a fine mist of a predetermined particle size by operating a switch that is displayed to release the fine mist of a predetermined particle size;
A second operation is performed to release a fine mist having a particle diameter smaller than that of the first mode by operating a switch that is displayed to emit a fine mist having a particle diameter smaller than that of the first mode. A mode setting unit that can set the mode of
The water supply unit is configured to be able to change the water supply amount,
The water supply amount of the water supply unit in the second mode is smaller than the water supply amount of the water supply unit in the first mode.

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