JP2002130187A - Blower and bathroom dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a blower capable of reducing a pressure loss and noise and a bathroom dryer capable of improving workability in a lightweight thin type and easy in controlling the wind direction. SOLUTION: By this blower having two sirocco fans having the same rotary shaft and driven by a single motor, and casings for cointaining the sirocco fans, and integrating the two casings of the sirocco fans on the upstream side of the downstream side end of a circular arc for constituting a tongue part only on the opposed side, a blowoff wind speed is reduced, and the pressure loss can be reduced. By forming this bathroom dryer having the blower, an exhaust air duct, a circulating air duct for circulating hot air in a bathroom by heating air via a heat exchanger, a damper for controlling the air quantity distribution and a blowoff louver, and having the damper positioned upstream of the exhaust air duct and the circulating air duct, and composed of a side plate having the rotary shaft and a main plate for controlling a flow, the workability can be improved in the lightweight thin type, and wind direction controllability can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower in which a resistor such as a heat exchanger is installed downstream, and a bathroom dryer used for drying or ventilating / heating clothes or a bathroom.

[0002]

2. Description of the Related Art A conventional blower will be described with reference to FIG.

A resistor 101 such as a heat exchanger is installed downstream, has the same rotating shaft 102, and has one motor 10
The blower was provided with two sirocco fans 104 driven by 3 and a housing 105 containing the sirocco fan 104.

A conventional bathroom dryer will be described with reference to FIG.

The heat exchanger 107 serving as a heat source and the heat exchanger 1
Circulating fan 1 that circulates and blows warm air into the bathroom through 07
08, a ventilation fan motor 111 that drives a ventilation fan 110 that ventilates air containing moisture in the bathroom, an electrical unit 112 that controls the operation, and controls the direction of air blowing into the bathroom. It has a blow-out louver 113, and the axial direction of both the circulation fan motor 109 and the ventilation fan motor 111 is provided in a direction perpendicular to the ceiling surface for mounting the product. The circulation fan 108 sucks air in the bathroom and removes the heat exchanger. The ventilating fan 110 was a bathroom dryer that blows out warm air and blows air out of the bathroom.

[0006] Further, the bathroom dryer has an air passage for guiding hot air to the blowout louver 113 for blowing hot air into the bathroom.

[0007]

In such a conventional blower, the flow velocity is concentrated near the discharge port of the sirocco fan 104 with respect to the resistor 101 installed downstream, so that the pressure loss increases and the heat loss increases. There is a problem that the performance of replacement and the like also deteriorates, and there is a problem that the noise of the blower that can be heard from the opening 106 of the housing 105 is large. It is required to reduce the noise, improve the performance such as heat exchange, and further reduce the noise.

In such a conventional bathroom dryer,
Two fan motors, one for circulation and one for ventilation, are required, and the weight of the main body is large, so the workability is poor and the cost is high.

The circulation fan 108 and the ventilation fan 11
Because 0 is installed perpendicular to the ceiling surface, the thickness of the main unit becomes thicker and it cannot be installed in a small bathroom in the space above the ceiling,
There was also a problem that the workability was poor.

Further, since the velocity component in one direction is in a protruding flow before reaching the blowout louver 113, it is difficult to control the wind direction by the blowout louver 113, and the wing is installed for wide blowout. Therefore, there is a problem that the discharge resistance increases.

Further, since the ventilation fan 110 is installed perpendicular to the ceiling surface, there is no space for installing a duct connection portion for ventilation from outside the bathroom, and there is a problem that multi-room ventilation cannot be performed.

Another problem is that when installed in a bathroom already equipped with ventilation equipment, it is not possible to remove a ventilation mechanism that does not need to be used. There is a demand for a high-performance, wide blowout, multi-room ventilation, and a ventilation function provided by an external ventilation fan.

The present invention solves the above-mentioned conventional problems, and is lightweight, thin, has good workability, is inexpensive, has high wind direction control, can provide wide blowing, and can provide multi-room ventilation. Another object of the present invention is to provide a bathroom dryer in which a ventilation function can be performed by an external ventilation fan.

[0014]

In order to achieve the above object, a blower according to the present invention has two sirocco fans having the same rotating shaft and driven by one motor, and a housing containing the sirocco fan. Wherein the two casings of the sirocco fan are integrated only on the facing side and upstream of the downstream end of the arc forming the tongue.

Still another means is that the sirocco fan is a both-suction type blower.

Another means is a blower in which one of the sirocco fans is of a double suction type and the other is of a single suction type.

Still another means is that when the opening of the housing is on the side facing the tongue of the sirocco fan, an opening edge of the opening in a direction opposite to the rotation direction of the opening is projected in a direction perpendicular to the opening. The blower is located between the upstream end and the downstream end of the arc constituting the tongue.

Another means is that, at the suction port of the sirocco fan, the axis perpendicular to the opening of the housing, the rotation axis as the origin, the opening direction as the Y axis, and the rotation on the negative side of the Y axis. A plate-shaped member that contacts the point P between the suction port diameter R and 1.6R in the third quadrant when the axis whose positive direction is the X axis is set in at least one of the suction ports of the sirocco fan. It is a blower that has been used.

Further, in order to achieve the above object, the bathroom dryer of the present invention has a blower for sucking air in the bathroom, an exhaust air path for exhausting air discharged from the blower, and a discharge air from the blower. And a damper that is heated by a heat exchanger and circulates warm air into the bathroom, a damper that is driven by a damper motor and controls air volume distribution of the exhaust air passage and the circulation air passage, and controls an operation operation. And a blower louver for controlling the blowout direction to the bathroom, wherein the damper is located upstream of the exhaust air path and the circulation air path, and includes a side plate having a rotating shaft and a main plate for controlling the flow. It is a dryer.

Another means is a bathroom dryer in which the blower is arranged in parallel with the ceiling surface.

Another means is that there is no member for controlling the flow of hot air from the heat exchanger to the blowout louver, and the blowout louver has a side plate provided with a rotating shaft and two main plates for controlling the flow. And a bathroom dryer consisting of:

Still another means is a bathroom dryer in which a plurality of wings are provided between two main plates of the blowout louver, and the side plates are also wing-shaped.

Another means is a bathroom dryer in which a duct connection portion is provided in the main body, and ventilation other than the bathroom can be performed through the duct.

Still another means is a bathroom dryer having an opening in the exhaust air passage directly communicating with the bathroom, and a ventilation fan interlocking terminal in the electrical component.

According to the present invention, it is possible to provide a lightweight, thin, good workability, low cost, high wind direction control, wide blow-out, multi-room ventilation, and to perform the ventilation function with an external ventilation fan. A bathroom dryer is obtained.

[0026]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention has the same rotation axis,
In a blower including two sirocco fans driven by one motor and a housing including the sirocco fan, the two casings of the sirocco fan are provided only on the facing side, downstream of an arc forming a tongue. It is a blower that is integrated upstream from the side end, and the discharge port area increases, so if a resistor such as a heat exchanger is installed downstream, at a more uniform wind speed with respect to the resistor It has the effect of being able to flow in, reducing pressure loss and improving performance such as heat exchange.

Further, the sirocco fan is a blower of both suction type, so that the shape of the impeller can be made efficient even for a resistor having a long axial distance. Since the total suction port area of the fan increases, the suction resistance can be reduced, the number of revolutions can be reduced and the noise can be reduced, and the same impeller can be used, so that the cost can be reduced. Have.

Further, the sirocco fan is a blower in which one of the sirocco fans is a two-suction type and the other is a one-suction type, and the sirocco fan can include a part of a motor in the sirocco fan. Can be increased and the suction resistance can be reduced, so that there is an effect that the number of revolutions can be reduced and the noise can be reduced.

Further, when the opening of the housing is on the side facing the tongue of the sirocco fan, and when the opening edge of the opening in the direction opposite to the rotation direction of the opening is projected in the direction perpendicular to the opening, the tongue is formed. It is a blower located between the upstream end and the downstream end of the arc to constitute, and the inflow from the opening becomes the inflow from the tongue direction, and flows into the sirocco fan along the rotation direction of the impeller This has the effect that the collision with the blades of the impeller can be reduced and the noise can be reduced.

In the suction port of the sirocco fan, an axis perpendicular to the opening of the housing and having the rotation axis as the origin and the opening direction as the positive axis is defined as the Y axis, and the rotation direction on the negative side of the Y axis is defined as the positive direction. When the axis of the sirocco fan is the X-axis, a plate-shaped member in contact with a point P between the suction port diameter R and 1.6R in the third quadrant is installed at at least one of the suction ports of the sirocco fan. The air from the opening can flow into the sirocco fan along the rotation direction of the impeller, mitigating the collision with the blade of the impeller,
It has the effect that noise can be reduced.

Also, the present invention provides a blower for sucking air in a bathroom, an exhaust air passage for exhausting air discharged from the blower, and a heater for heating air discharged from the blower through a heat exchanger. A circulating air path for circulating wind in the bathroom, a damper driven by a damper motor to control the air volume distribution of the exhaust air path and the circulating air path, an electrical unit for controlling operation, and a blowing direction to the bathroom. A blower louver for controlling the air conditioner, the damper is located upstream of the exhaust air passage and the circulation air passage, and is a bathroom dryer including a side plate having a rotating shaft and a main plate for controlling the flow. Therefore, the weight of the main body can be reduced, the workability can be improved, and the cost can be reduced.In addition, the damper is located upstream of the exhaust air passage and the circulation air passage and controls the flow with the side plate having the rotating shaft. Consists of a main plate The distance between the rotating shaft of the damper and the main plate can be increased, and the main plate is moved away from each air passage in the drying mode to discharge to both the circulation air passage and the exhaust air passage, reducing pressure loss due to the main plate. Has the effect of being able to

[0032] Further, the blower according to claim 1, 2, 3, 4 or 5 is a bathroom dryer arranged in parallel with the ceiling surface, and the thickness of the main body is increased by installing the blower in parallel with the ceiling surface. Has the effect that the workability can be improved by reducing the thickness and the noise can be reduced by a low-noise blower.

Further, there is no member for controlling the flow of the hot air from the heat exchanger to the blow-out louver, and the blow-out louver is composed of a side plate having a rotating shaft and two main plates for controlling the flow. It was an opportunity
Since the hot air is blown out from the entire blowout opening without having a protruding velocity component, the wind direction can be easily controlled by the two main plates, and the cost can be reduced because there is no member to the louver.

Further, the present invention is a bathroom dryer having a plurality of wings between two main plates of the blowout louver, and the side plate also has a wing shape. Since it blows out without having a protruding velocity component, it is possible to blow out even with a small wing, it is possible to reduce discharge resistance, and since warm air blows out from the outside of the side plate, more wing-shaped side plate It has the effect of being able to blow out wide.

Further, the main body is provided with a duct connection portion, and a bathroom dryer capable of ventilating other than the bathroom through the duct is provided. A blower is installed in parallel with the ceiling surface, so that the duct connection portion is provided on the side surface of the main body. Has the effect of being able to ventilate from outside the bathroom.

Further, a bathroom dryer having an opening directly communicating with the bathroom in the exhaust air passage, and a ventilation fan interlocking terminal in the electrical unit, and a ventilation fan interlocking terminal in the electrical unit, allows the exhaust air to be exhausted. Since it is possible to operate in conjunction with the ventilation fan originally provided in the bathroom by connecting the duct to the road and ventilation fan, ventilation and drying operation can be performed even if there is no ventilation mechanism in the main body, It has the effect of reducing weight, improving workability, and reducing costs.

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

[0038]

(Embodiment 1) As shown in FIGS. 1 and 2, the blower of the present invention has the same rotating shaft 1 and one motor 2
A fan provided with two sirocco fans 3 driven by the sirocco fan 3 and a housing 4 containing the sirocco fan 3, wherein the two casings 5 of the sirocco fan 3 form a tongue only on the facing side. Are integrated on the upstream side from the downstream end.

According to the above configuration, since the area of the discharge port is increased, when the resistor 7 such as a heat exchanger is installed downstream, it can be made to flow into the resistor 7 at a more uniform wind speed and the pressure can be reduced. Loss can be reduced, and performance such as heat exchange can be improved.

(Embodiment 2) As shown in FIG. 3, both the sirocco fans 3 are of a double suction type.

With the above configuration, the shape of the impeller 8 can be made efficient even with respect to the resistor 7 having a long axial distance, and the total area of the suction ports of the sirocco fan 3 is increased, so that the suction is performed. The resistance can be reduced, the number of revolutions can be reduced, the noise can be reduced, and the same impeller can be used, so that the cost can be reduced.

By arranging the motor 2 outside, not between the two sirocco fans 3, the effect of the motor 2 on the flow is reduced, which is more preferable.

(Embodiment 3) As shown in FIG. 4, one of the sirocco fans 3 is of a double suction type and the other is of a single suction type.

With the above configuration, the single-suction sirocco fan 9
Thus, it is possible to include a part of the motor 2 and to increase the interval between the sirocco fans 3 and reduce the suction resistance. Therefore, it is possible to reduce the number of revolutions and reduce noise.

(Embodiment 4) As shown in FIG. 5, the opening 10 of the housing 4 is on the side facing the tongue of the sirocco fan 3, and the opening edge of the opening 10 in the direction opposite to the rotation direction of the opening 10 is provided. When the projection 11 is projected in the direction perpendicular to the opening 10, the arc 6 constituting the tongue is located between the upstream end and the downstream end.

With the above-described configuration, the inflow from the opening 10 becomes the inflow from the tongue direction and flows into the sirocco fan 3 along the rotation direction of the impeller 8, so that the collision of the impeller 8 with the blade is reduced. Noise can be reduced.

(Embodiment 5) As shown in FIG. 6, at the suction port 13 of the sirocco fan 3, an axis perpendicular to the opening 10 of the housing 4 and having the rotation axis as the origin and the opening direction as the positive axis is the Y axis. When the axis whose rotation direction on the negative side of the Y-axis is positive is the X-axis, the distance from the inlet diameter R in the third quadrant is 1.
The plate-like member 14 in contact with the point P between 6R is provided in at least one of the suction ports 13 of the sirocco fan 3.

With the above configuration, the air from the opening 10 can flow into the sirocco fan 3 along the rotation direction 12 of the impeller 8, so that the collision of the impeller 8 with the blade is reduced and the noise is reduced. be able to.

The plate-like member 14 may be flat or have a curvature, and may not be perpendicular to the suction port 13.

The plate member 14 may be integrated with the casing 5 or the housing 4.

(Embodiment 6) As shown in FIG. 7, the bathroom dryer of the present invention comprises a blower 15 for sucking air in the bathroom,
Exhaust air path 16 for exhausting air discharged from the blower 15
And a circulating air path 18 for heating the air discharged from the blower 15 through the heat exchanger 17 and circulating warm air into the bathroom.
And the exhaust air passage 16 driven by a damper motor.
And a damper 19 for controlling the air volume distribution in the circulation air passage 18
And an electrical unit 20 for controlling the driving operation, and a blowout louver 21 for controlling the blowout direction to the bathroom. The damper 19 is located upstream of the exhaust air passage 16 and the circulation air passage 18, and has a rotating shaft 22. And a main plate 24 for controlling the flow.

With the above configuration, since there is only one blower, the weight of the main body can be reduced to improve the workability, and the cost can be reduced. Further, the damper 19 is located upstream of the exhaust air passage 16 and the circulation air passage 18. Side plate 2 with a rotating shaft 22
3 and a main plate 24 for controlling the flow.
9, the main plate 24 is moved to a position away from each of the air passages in a drying mode in which both the exhaust air passage 16 and the circulation air passage 18 are discharged. Pressure loss can be reduced.

The main plate 24 may be flat or have a curvature.

(Embodiment 7) As shown in FIG. 7, the blower 15 is a blower according to the first, second, third, fourth or fifth aspect and is arranged in parallel with a ceiling surface.

With the above configuration, the blower 1 is arranged in parallel with the ceiling surface.
By installing 5, the workability can be improved by reducing the thickness of the main body, and the noise can be reduced by a low-noise blower.

(Embodiment 8) As shown in FIG. 8, there is no member for controlling the flow of hot air from the heat exchanger 17 to the blow-out louver 21, and the blow-out louver 2
1 includes a side plate 26 having a rotating shaft 25 and two main plates 27 for controlling the flow.

With the above structure, warm air is blown out from the opening 28.
Since it blows out from the whole without having a prominent speed component,
The wind direction can be easily controlled by the two main plates 27, and the cost can be reduced because there is no member up to the blowout louver 21.

The blowout louver 21 can be manually operated,
It may be operated by a prime mover.

(Embodiment 9) As shown in FIGS. 8 and 9, a plurality of wings 29 are provided between two main plates 27 of the blowout louver 21, and the side plate 26 is also formed in a wing shape. Has been.

With the above configuration, the warm air is blown out from the opening 28.
Since it blows out from the whole without having a prominent speed component,
Even with a small wing, it is possible to blow out wide, the discharge resistance can be reduced, and since the warm air blows from the outside of the side plate 26, the wing-shaped side plate 26
Thereby, it can be blown out wider and the drying performance can be improved.

(Embodiment 10) As shown in FIG. 10, a main body 30 is provided with a duct connection portion 31 so as to be able to ventilate other than the bathroom through the duct.

According to the above configuration, since the blower is installed in parallel with the ceiling surface, the duct connection portion 31 can be provided on the side surface of the main body, and ventilation can be performed from outside the bathroom.

(Embodiment 11) As shown in FIG. 11, the exhaust air passage 16 is provided with an opening 32 communicating directly with the bathroom, and the electrical unit 20 is provided with a ventilation fan interlocking terminal.

According to the above configuration, since the electric unit 20 is provided with the ventilation fan interlocking terminal, it is possible to connect the exhaust air passage and the ventilation fan with a duct to operate in conjunction with the ventilation fan originally provided in the bathroom. Ventilation and drying operation can be performed without a ventilation mechanism in the main body, so that the main body can be reduced in weight, workability can be improved, and cost can be reduced.

It should be noted that the operation may be performed individually without being electrically linked with the ventilation fan.

The damper 19 is removed and the blower 15
May be dedicated to circulation.

[0067]

As is apparent from the above embodiments, according to the present invention, it is possible to provide a blower which reduces pressure loss, improves performance such as heat exchange, and further reduces noise.

Further, according to the present invention, lightweight, thin, good workability, low cost, high wind direction control, wide blowout, multi-room ventilation, and ventilation function provided by an external ventilation fan A bathroom dryer can be provided that can be performed.

[Brief description of the drawings]

FIG. 1 a) Front view of a blower according to a first embodiment of the present invention. B) Side sectional view of a blower according to a first embodiment of the present invention.

FIG. 2 is a perspective view of the casing.

FIG. 3 is a front view of the blower according to the second embodiment.

FIG. 4 is a front view of the blower according to the third embodiment.

FIG. 5 is a side sectional view of the blower according to the fourth embodiment.

FIG. 6 is a side sectional view of the blower according to the fifth embodiment.

FIG. 7 a) Side sectional view of the bathroom dryer of the sixth and seventh embodiments. B) Perspective view of a damper of the bathroom dryer of the sixth and seventh embodiments.

FIG. 8 a) Side sectional view of the bathroom dryer of the eighth and ninth embodiments. B) Perspective view of the blowout louver of the bathroom dryer of the eighth and ninth embodiments.

FIG. 9 is a side view of the blowout louver according to the ninth embodiment.

FIG. 10 is a side view of the bathroom dryer of the tenth embodiment.

FIG. 11 is a side view of the bathroom dryer of the eleventh embodiment.

FIG. 12 a) Front view of conventional blower b) Side sectional view of conventional blower

FIG. 13 is a side view of a conventional bathroom dryer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotation axis 2 Motor 3 Sirocco fan 4 Housing 5 Casing 6 Arc 7 Resistor 8 Impeller 9 Single suction sirocco fan 10 Opening 11 Opening edge 12 Rotation direction 13 Suction port 14 Plate member R Suction port diameter P point 15 Blower 16 Exhaust air path 17 Heat exchanger 18 Circulating air path 19 Damper 20 Electrical unit 21 Louver 22 Rotating shaft 23 Side plate 24 Main plate 25 Rotating shaft 26 Side plate 27 Main plate 28 Blow-out opening 29 Wing 30 Main body 31 Duct connection part 32 Opening

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) F04D 29/66 F04D 29/66 N 3L113 F24D 15/00 F24D 15/00 B 4L019 F24F 7/06 F24F 7/06 Z F26B 9/02 F26B 9/02 A (72) Inventor Yoshito Kubo 6-2-61 Imafukunishi, Joto-ku, Osaka-shi, Osaka F-term in Matsushita Seiko Co., Ltd. 3H033 AA02 AA13 BB02 BB06 BB10 BB20 CC01 CC03 DD04 EE06 EE08 3H034 AA02 AA13 BB06 BB10 BB20 CC01 CC03 DD04 DD09 DD28 EE06 EE08 EE12 3H035 DD04 DD05 3L058 BD02 BE05 BG01 3L072 AA05 AB06 AD19 3L113 AA01 AB02 AB03 AC01 AC45 AC46 DA16 AC16 AC56 DA14

Claims (11)

[Claims] 1. A blower having two sirocco fans having the same rotation axis and driven by one motor, and a blower including a housing enclosing the sirocco fan, wherein two casings of the sirocco fan face each other. A blower integrated only on the side and upstream from the downstream end of the arc that forms the tongue. 2. The blower according to claim 1, wherein both the sirocco fans are of a double suction type. 3. The blower according to claim 1, wherein one of the sirocco fans is a double-suction type and the other is a single-suction type. 4. An opening of the housing is located on a side facing the tongue of the sirocco fan, and when an opening edge in a direction opposite to a rotation direction of the opening is projected in a direction perpendicular to the opening, the tongue is formed. The blower according to claim 1, 2 or 3, which is located between an upstream end and a downstream end of the arc constituting the arc. 5. In the suction port of the sirocco fan, an axis which is perpendicular to the opening of the housing and whose origin is a rotation axis and whose opening direction is positive is Y axis, and the rotation direction on the negative side of Y axis is positive. A plate-like member that contacts a point P between the suction port diameter R and 1.6R in the third quadrant when the axis to be set is the X axis is installed in at least one of the suction ports of the sirocco fan. Item 6. The blower according to item 1, 2, 3 or 4. 6. A blower for sucking air in a bathroom, an exhaust air path for exhausting air discharged from the blower, and heating air discharged from the blower through a heat exchanger to generate hot air in the bathroom. Circulating air path, a damper driven by a damper motor to control the air flow distribution of the exhaust air path and the circulating air path, an electrical unit for controlling the operation, and a blowout louver for controlling a blowing direction to the bathroom A bathroom drier comprising: a side plate having a rotating shaft; and a main plate for controlling a flow, wherein the damper is located upstream of the exhaust air passage and the circulation air passage. 7. The bathroom dryer according to claim 6, wherein the blower according to claim 1, 2, 3, 4, or 5 is arranged parallel to a ceiling surface. 8. There is no member for controlling the flow of hot air between the heat exchanger and the blow-out louver, and the blow-out louver controls the flow with a side plate having a rotating shaft.
The bathroom dryer according to claim 6 or 7, comprising a plurality of main plates. 9. The bathroom dryer according to claim 8, wherein a plurality of wings are provided between two main plates of the blowout louver, and the side plates are also wing-shaped. 10. The bathroom dryer according to claim 6, wherein the main body is provided with a duct connection portion, and ventilation outside the bathroom can be performed through the duct. 11. The exhaust air path has an opening that directly communicates with a bathroom, and the electrical unit has a ventilation fan interlocking terminal.
The bathroom dryer according to 7, 8, 9 or 10.