JPH0999028A - Mist generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable connection to a hot water supply cock already installed in a bathroom while unnecessitating an large-scale construction and to improve durability by arranging plural impingement plates outside the diameter direction of a rotating impeller, supplying hot water by forming a duct form hot water supply on the base plate of the impeller and branching a dust for cooling a motor from the duct for supplying hot water. SOLUTION: Inside an internal casing 1b, an impeller 3 is disposed parallel to the upper inclined end of an external casing 1a. The impeller 3 is composed of a base late 3a and plural loop-shaped plates 3c parallelly laminated at mutual fine intervals through a spacer 3b. An output shaft 4a of a motor 4 is fixed on the lower surface of the base plate 3a. Outside the diameter direction of the impeller 3, plural impingement plates 6 are arranged at mutual intervals in peripheral direction in the shape of a wing backward in the rotating direction of the impeller 3. A 1st hot water supply path 10a is fitted to a 3rd opening 7c of a lid member 7 and connected through a 2nd hot water supply path 10b to a flow-in pipe 11. A motor cooling pipe 12 branched from the 2nd hot water supply path 10b surrounds the motor 4 and joins into a drain pipe 2 later.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mist generator.

[0002]

2. Description of the Related Art There are two types of saunas, a dry sauna for exposing a human body to a low humidity and high temperature environment and a mist sauna for exposing a human body to a high humidity, medium and high temperature environment. In the mist sauna,
When taking a bath, there is an advantage that a sore throat, dry hair, etc. are not caused and a gentle bathing feeling is obtained. Conventionally, a plurality of mist sauna devices have been proposed. JP-A-63-207927
The gazette proposes a bathroom heating device in which a steam generator for boiling water to generate steam is connected to a bathroom by piping, and steam is introduced into the bathroom. Japanese Utility Model Publication No. 1-138439 proposes a steam sauna device in which hot water heated by a heater is atomized by an ultrasonic humidifier. JP-A-4-2418
Japanese Unexamined Patent Publication No. 66 and Japanese Unexamined Patent Publication No. 4-241867 propose a mist sauna device in which hot water heated by a gas water heater is pressurized by a pump and sprayed through a nozzle.

[0003]

The above-described conventional mist sauna device requires large-scale construction when installed in an existing bathroom, has a complicated structure, is large, and is expensive. was there. The present invention has been made in view of the above problems, and can be connected to an existing water supply and hot water tap provided in a bathroom without requiring large-scale construction, has a simple structure, and is small and inexpensive. It is an object of the present invention to provide a mist generating device that has a good durability.

[0004]

In order to solve the above-mentioned problems, in the present invention, an impeller composed of a disk-shaped base plate, a motor for rotationally driving the impeller, and an outer radial direction of the impeller are provided. , A plurality of collision plates arranged at intervals in the circumferential direction of the impeller, a hot water supply passage for supplying hot water to the base plate, and a motor cooling motor for branching from the hot water supply passage to surround the motor. A mist generating device comprising: a flow path.

In the mist generating device according to the present invention,
When hot water is supplied to the central portion of the base plate via the hot water supply passage, the hot water is subjected to a shearing force in a tangential direction from the rotating base plate to be accelerated, forming a thin liquid film while the other of the base plate is being formed. Flow outward in the radial direction. The outer edge of the base plate,
That is, the hot water or the liquid film of water that has reached the outer edge of the impeller is
While crushing and atomizing into fine mist from the outer edge of the impeller,
It jumps out almost tangentially. The warm water or the mist of water that has sprung out in a substantially tangential direction collides with the rear surface of the impingement plates arranged at intervals in the circumferential direction outward in the radial direction of the impeller, in the rotational direction of the impeller, and Be miniaturized. The mist that has been made fine by the collision with the collision plate is reflected and sprayed from the mist generator into the bathroom.

The mist generating device according to the present invention can be connected to an existing water supply and hot water tap installed in the bathroom without requiring a large-scale work by making a slight modification to the existing water and hot water supply tap. Further, the mist generator according to the present invention has a simple structure, is small in size, and is inexpensive.
By connecting the mist generating device according to the present invention to the water supply and hot water tap provided in the existing bathroom, the mist sauna device can be easily configured in the existing bathroom.

In the mist generator according to the present invention,
The motor is cooled by the hot water flowing in the motor cooling flow path that branches off from the hot water supply flow path and surrounds the motor, thereby preventing the motor from overheating. As a result, the durability of the mist generator is improved.

Further, according to the present invention, an impeller made of a disk-shaped base plate, a motor for rotating the impeller, a radial outside of the impeller, and a circumferentially spaced interval from each other. A plurality of collision plates arranged and a hot water supply passage for supplying hot water to the base plate, the motor is housed in a case of a watertight structure, and a part of the motor is exposed to the outside air. A mist generator is provided.

In the mist generator according to the present invention,
The heat generated by the motor housed in the watertight case is released from the exposed portion of the motor to the outside of the case to prevent the motor from overheating. As a result, the durability of the mist generator is improved.

Further, according to the present invention, an impeller in which one or more annular plates are laminated in parallel with the base plate at a minute distance from each other on a disc-shaped base plate, and a motor for rotationally driving the impeller. A plurality of impingement plates arranged at intervals in the circumferential direction of the impeller, radially outside the impeller, a hot water supply channel for supplying hot water to the impeller, and a hot water supply channel. Provided is a mist generating device, characterized in that it is provided with a motor cooling flow path that branches to surround a motor.

In the mist generator according to the present invention,
When hot water is supplied to the central opening of the impeller through the hot water supply passage, the hot water flows into a flow passage of a minute height formed between the base plate and the annular plate or between the adjacent annular plates. , Is accelerating by receiving a shearing force in a tangential direction from the rotating base plate and the annular plate to form a thin liquid film and flow radially outward in the flow path. The liquid film of the warm water that has reached the outer edge of the flow path, that is, the outer edge of the impeller, is crushed and atomized into fine mist from the outer edge of the impeller, and jumps out in a substantially tangential direction. The mist of hot water that jumped out in a substantially tangential direction was located radially outward of the impeller,
The collision plates, which are arranged at intervals in the circumferential direction, collide with the rear surface of the impeller in the rotation direction of the impeller at a substantially right angle and are further miniaturized. The mist that has been made fine by the collision with the collision plate is reflected and sprayed from the mist generator into the bathroom.

In the mist generator according to the present invention,
A thin liquid film is reliably formed in a flow path of a minute height formed between a disk-shaped base plate and a circular ring plate provided in a rotating impeller or between adjacent circular plates, and the thin liquid film is formed. The liquid film of spills out in a substantially tangential direction from the outer edge of the impeller and collides with the collision plate, so that the liquid film is reliably crushed and atomized into fine mist. The amount of mist generated is increased by stacking a plurality of annular plates in parallel on a disk-shaped base plate with a small gap therebetween.

Further, in the present invention, an impeller in which one or more annular plates are laminated in parallel with the base plate with a minute gap therebetween on a disc-shaped base plate, and a motor for rotationally driving the impeller. And a plurality of collision plates arranged radially outward of the impeller and spaced apart from each other in the circumferential direction of the impeller, and a hot water supply passage for supplying hot water to the impeller. Provided is a mist generator characterized in that the motor is housed in a case of the structure and a part of the motor is exposed to the outside air.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION A mist generator according to a first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, a mist generator A is placed on a bathroom floor.
The mist generator A includes a bottomed cylindrical outer casing 1a having an obliquely cut open upper end. Inside the outer casing 1a, a bottomed cylindrical inner casing 1b having an open upper end is obliquely arranged in parallel with the inclined upper end of the outer casing 1a. Inner casing 1
An opening 1b ₁ is formed at the lower end of b. The opening 1b ₁ is connected via the drainage pipe 2 to the opening 1a ₁ formed at the lower end of the outer casing 1a.

An impeller 3 is obliquely arranged in the inner casing 1b in parallel with the inclined upper end of the outer casing 1a. The impeller 3 has a disk-shaped base plate 3a and a spacer 3b, and the base plate 3a is spaced apart from each other by a minute distance.
It has a plurality of annular plates 3c that are laminated on top and in parallel with the base plate 3a. The motor 4 is fixed to the outer surface of the bottom wall of the inner casing 1b. Output shaft 4a of motor 4
Extends through the bottom wall of the inner casing 1b into the inner casing 1b. The upper end of the output shaft 4a has the base plate 3
It is fixed to the center of the lower surface of a. The gap between the through hole formed in the bottom wall of the inner casing 1b and the output shaft 4a is
It is sealed by the shaft sealing device 5.

As shown in FIGS. 1 and 2, a plurality of flat plate-shaped impingement plates 6 are arranged radially outward of the impeller 3 and are spaced apart from each other in the circumferential direction, and receding wing-like in the rotational direction of the impeller 3. It is installed in. The collision plate 6 is inserted into a slit 1b ₂ formed at the upper end of the inner casing 1b and fixed to the inner casing 1b. As shown in FIG.
The collision plate 6 is arranged so as to be inclined with respect to the base plate 3a of the impeller so that the rear surface of the collision plate 6 with respect to the rotation direction of the impeller 3 can be seen when facing down the impeller from diagonally above. ing.

As shown in FIGS. 1 and 4, the uppermost annular plate 3
An elliptical lid member 7 that covers the impeller 3 and the collision plate 6 is disposed at a distance above c. At the center of the lid member 7, a first opening 7a is provided facing the central opening 3d of the impeller 3.
Are formed. As shown in FIG. 4, the lid member 7 includes
The substantially same number of second openings 7b as the collision plates 6 are formed. _One side 7b1 of the second opening 7b is in contact with the front surface of the corresponding upper end of the collision plate 6 in the rotation direction of the impeller 3. _One side 7b of the second opening 7b facing the one side 7b _1.
2 is spaced from the rear surface of the upper end of the corresponding collision plate 6 with respect to the rotation direction of the impeller 3 in such a manner that no fingers can enter in the circumferential direction. The lid member 7 is attached to the inner casing 1 by screws 8.
The outer casing 1 is fixed to the upper end of b by the screw 9.
It is fixed to the upper end of a.

As shown in FIGS. 1 and 4, a third opening 7c is formed at the upper edge of the lid member 7. The third opening 7c is
The side wall of the outer casing 1a communicates with the first opening 7a through the first hot water supply passage 10a attached to the upper surface of the lid member 7 and also through the second hot water supply passage 10b arranged in the outer casing 1a. Inflow pipe 11 which penetrates through and extends to the outside
Is in communication with. The motor cooling pipe 12 branched from the second hot water supply passage 10 b surrounds the motor 4 and joins the drain pipe 2.

In the outer casing 1a, a rechargeable battery 13 as a motor driving power source and a control device 14 are provided. A start switch 15 is attached to the outer casing 1a. A portion of the outer casing 1a excluding the inner casing 1b constitutes a case having a watertight structure, and the motor 4, the battery 13, the control device 14, etc. are arranged in the case.

A valve 16 is attached to a water supply hot water tap installed in the bathroom.
And a branch pipe 17 are attached. Hot water supply hose 18
Has one end connected to the branch pipe 17 via the coupler 19 and the other end connected via the coupler 20 to the mist generator A.
Is connected to the inflow pipe 11. Valve 16 and branch pipe 17
With the hot water supply hose 18 and the couplers 19 and 20,
A water and hot water supply device B is configured. The mist generating device A and the hot water supply device B form a mist sauna device.

The operation of the mist generator A having the above structure will be described below. A bather opens the valve 16 and turns on the start switch 15 of the mist generator A. The motor 4 starts rotating. Hot water produced by the operation of a hot water supply device (not shown) passes through a hot water supply tap provided in the bathroom, a branch pipe 17 and a hot water supply hose 18, and further, an inflow pipe 11 and a hot water supply passage 10b.
-10a and the opening 7a formed in the lid member 7 of the mist generator A, and is supplied to the central opening 3d of the rotating impeller 3. The warm water flows between the base plate 3a and the annular plate 3c,
Alternatively, it may flow into a flow path of a minute height formed between the adjacent annular plates 3c, and may be tangentially sheared by the rotating base plate 3a and the annular plate 3c to be accelerated to form a thin liquid film. While forming, it flows radially outward in the flow path.

As shown by the double arrow in FIG. 2, the liquid film of hot water reaching the outer edge of the flow path, that is, the outer edge of the impeller 3, is
From the outer edge of the impeller 3, the fine mist is crushed and atomized, and jumps out in a substantially tangential direction. The mist of hot water that has sprung out in a substantially tangential direction is arranged radially outward of the impeller 3 and is circumferentially spaced apart from each other, and is arranged in a receding blade shape in the rotational direction of the impeller 3. The rear surface of the impeller 3 in the rotation direction of the impeller 6 collides with the rear surface of the impeller 3 at a substantially right angle when viewed obliquely from above and is further miniaturized. The mist collides with the rear surface of the impingement plate 6 in the rotation direction of the impeller 3 at a substantially right angle when viewed obliquely from above, thereby promoting miniaturization of the mist.

As shown by the double arrow in FIG. 3, the collision plate 6 of the impeller 3 is inclined with respect to the base plate 3a of the impeller 3.
The mist that collides with the rear surface in the rotation direction of the impeller 3 and is made fine when viewed from diagonally above is reflected obliquely upward, passes through the second opening 7b of the lid member 7, and is diagonally inclined from the mist generator A. Ejects upwards. Water droplets adhering to the collision plate 6, mist having a relatively large particle diameter, and the like fall toward the bottom of the inner casing 1b and are formed in the opening 1b ₁ formed in the inner casing 1b, the drain pipe 2, and the outer casing 1a. It is discharged to the floor of the bathroom or the like through the opened opening 1a ₁ .

The motor 4 is cooled by the hot and cold water flowing through the motor cooling pipe 12 that branches from the second hot water supply passage 10b and surrounds the motor 4. The hot and cold water that has cooled the motor 4 joins the drainage flowing through the drainage pipe 2, passes through the opening 1a ₁ formed in the outer casing 1a, and is discharged to the floor of the bathroom or the like.

In the mist generator A, a minute height is formed between the disk-shaped base plate 3a and the annular plate 3c of the rotating impeller 3 or between the adjacent annular plates 3c. A collision liquid is formed in which a thin liquid film is formed in the flow path, the thin liquid film is projected from the outer edge of the impeller 3 in a substantially tangential direction, and is arranged in a receding blade shape with respect to the rotation direction of the impeller 3. By colliding with 6 at a substantially right angle when viewed from diagonally above,
It is surely crushed into fine mist and atomized. The amount of mist generated can be increased or decreased by increasing or decreasing the number of annular plates 3c. The mist generator A can be connected to the existing water supply and hot water tap provided in the bathroom without making a large-scale work by only slightly changing the existing water supply and hot water supply tap. The mist generator A has a simple structure, is small in size, and is inexpensive. By connecting the mist generating device A to the water supply and hot water tap provided in the existing bathroom, the mist sauna device can be easily configured in the existing bathroom.

In the mist generator A, the motor cooling pipe 1 that branches from the second hot water supply passage 10b and surrounds the motor 4 is provided.
The motor 4 is cooled by the hot and cold water flowing through the motor 2, and the motor 4 is prevented from overheating. As a result, the durability of the mist generator A is improved.

A mist generator according to the second embodiment of the present invention will be described with reference to FIG. In the mist generator A'according to the present embodiment, instead of the motor cooling pipe 12 of the first embodiment, the flange 4b 'of the motor 4'is exposed inside the inner casing 1b'. The contact surface between the flange 4b 'and the inner casing 1b' is sealed by an O-ring 5 '. Except for the above, the structure of the mist generator A'according to the present embodiment is similar to that of the mist generator A according to the first embodiment. In the mist generator A'according to this embodiment, the flange 4b 'of the motor 4'is exposed inside the inner casing 1b', and the inner space of the inner casing 1b 'communicates with the outside air. The heat generated by the motor 4'is released to the outside air via the flange 4b '. As a result, overheating of the motor 4'is prevented and the mist generator A '
Durability is improved.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. The number of circular plate 3c is 1
You only need one or more. If there is at least one sheet, a flow path for forming a thin liquid film can be obtained. The impeller 3 of the mist generator A,
You may comprise only the disk-shaped base plate 3a. In this case, the warm water supplied to the central portion of the base plate 3a is
The rotating base plate 3a receives a shearing force in a tangential direction and is accelerated to form a thin liquid film, flow radially outward on the upper surface of the base plate 3a, and the outer edge of the base plate 3a, that is, the impeller 3 From the outer edge of, it crushes into fine mist and is atomized while jumping out in a substantially tangential direction. The power source of the mist generator A may be a household power source.

[0029]

In the mist generator according to the present invention, a thin liquid film of warm water is formed on the disk-shaped base plate of the rotating impeller, and the thin liquid film forms the outer edge of the impeller. To a tangential direction, and further collides with a plurality of collision plates that are arranged radially outward of the impeller and are circumferentially spaced apart from each other, whereby the fine mist is reliably crushed and atomized. The mist generating device according to the present invention can be connected to an existing water supply and hot water tap installed in the bathroom without requiring a large-scale construction by only slightly changing the existing water supply and hot water supply tap. Further, the mist generator according to the present invention has a simple structure, is small in size, and is inexpensive. By connecting the mist generating device according to the present invention to the water supply and hot water tap arranged in the existing bathroom, simply in the existing bathroom,
A mist sauna device can be configured.

In the mist generator according to the present invention,
The motor is cooled by the hot water flowing in the motor cooling flow path that branches off from the hot water supply flow path and surrounds the motor, thereby preventing the motor from overheating. As a result, the durability of the mist generator is improved.

In the mist generator according to the present invention,
The heat generated by the motor housed in the watertight case is released from the exposed portion of the motor to the outside of the case to prevent the motor from overheating. As a result, the durability of the mist generator is improved.

In the mist generator according to the present invention,
A thin liquid film is reliably formed in a flow path of a minute height formed between a disk-shaped base plate and a circular ring plate provided in a rotating impeller or between adjacent circular plates, and the thin liquid film is formed. The liquid film of spills out from the outer edge of the impeller in a substantially tangential direction, and further collides with a plurality of collision plates circumferentially spaced outward in the radial direction of the impeller, so that the fine particles can be reliably made. Crushed into mist and atomized. The amount of mist generated is increased by stacking a plurality of annular plates in parallel on a disk-shaped base plate with a small gap therebetween.

[Brief description of drawings]

FIG. 1 is a mist generator according to a first embodiment of the present invention,
It is a lineblock diagram of a mist sauna device provided with the mist generating device.

FIG. 2 is a view taken along the line II-II in FIG.

FIG. 3 is a view taken along the line III-III in FIG.

FIG. 4 is a view taken along the line IV-IV in FIG.

FIG. 5 is a mist generator according to a second embodiment of the present invention,
It is a lineblock diagram of a mist sauna device provided with the mist generating device.

[Explanation of symbols]

 A, A'Mist generator B Water supply / hot water supply device 1a Outer casing 1b, 1b 'Inner casing 3 Impeller 3a Base plate 3c Annular plate 4, 4'Motor 4a Motor output shaft 4b' Flange 5 Shaft sealing device 5'O Ring 6 Collision plate 7 Lid member 7a First opening 7b Second opening 7c Third opening 10a First hot water supply passage 10b Second hot water supply passage 11 Inflow pipe 12 Motor cooling pipe 13 Battery 14 Controller 15 Start switch 16 Change valve 17 Branch pipe 18 Hot water supply hose 19, 20 Coupler

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yashiro Yatsuma 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City Tohoku Kikai Co., Ltd. (72) Inventor Tomohiro Nishi 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City No. 1 Totou Kikai Co., Ltd. (72) Inventor So Yamamoto 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City Totou Kiki Co., Ltd.

Claims (4)

[Claims] 1. An impeller composed of a disk-shaped base plate, a motor for rotationally driving the impeller, and an outer radial direction of the impeller,
A plurality of collision plates arranged at intervals in the circumferential direction of the impeller, a hot water supply channel for supplying hot water to the base plate, and a motor cooling flow channel branched from the hot water supply channel to surround the motor. And a mist generating device. 2. An impeller composed of a disk-shaped base plate, a motor for rotationally driving the impeller, and a radial outside of the impeller,
The motor is provided with a plurality of collision plates arranged at intervals in the circumferential direction of the impeller and a hot water supply passage for supplying hot water to the base plate, and the motor is housed in a watertight case, and a part of the motor is provided. Is a mist generator characterized by being exposed to the outside air. 3. An impeller in which one or more annular plates are laminated in parallel with the base plate at a minute distance from each other on a disc-shaped base plate, a motor for rotationally driving the impeller, and an impeller. A plurality of collision plates arranged radially outward of the impeller at intervals in the circumferential direction of the impeller, a hot water supply passage for supplying hot water to the impeller, and a motor branching from the hot water supply passage. And a motor cooling flow path surrounding the mist generator. 4. An impeller in which one or more annular plates are laminated in parallel with the base plate at a minute distance from each other on a disc-shaped base plate, a motor for rotationally driving the impeller, and an impeller. A plurality of collision plates arranged at intervals in the circumferential direction of the impeller, and a hot water supply passage for supplying hot water to the impeller are provided radially outward of the motor, and the motor is provided in a case of a watertight structure. Stored,
A mist generator characterized in that part of the motor is exposed to the outside air.