JP6907656B2 - Blower - Google Patents

Description

The present invention relates to a blower that is installed in a bathroom or the like and blows air or warm air according to room temperature into the room.

Conventionally, a blower device that is installed on the ceiling of a bathroom or the like and blows warm air or air according to room temperature into the room to realize functions such as heating the room and drying the object to be dried in the room has been proposed. .. Many of such blowers have a ventilation function of exhausting indoor air to the outside, and are called bathroom ventilation drying heaters.

The bathroom ventilation drying heater includes a fan having a multi-blade impeller, and the impeller is rotationally driven to generate a desired air flow. Due to static electricity generated due to the impeller being driven to rotate, dust and the like in the air may be attracted to the impeller and adhere to the impeller and accumulate. Accumulation of dust or the like on the impeller causes an obstacle to normal operation such as a decrease in air volume, an increase in noise, and a fall of deposits.

Therefore, conventionally, a technique of using a material containing an antistatic agent for an impeller and a technique of coating an impeller with an antistatic agent have been proposed (see, for example, Patent Documents 1 and 2).

Japanese Unexamined Patent Publication No. 2016-89147 Japanese Patent No. 5619408

The use of a resin containing an antistatic agent leads to deterioration of resin properties such as impact strength and deterioration of the effect, and the coating of the antistatic agent has an antistatic effect due to peeling and deterioration of the layer by the antistatic agent. Leads to a decline in. Therefore, a generator of functional factors such as ions that can obtain a static elimination effect should be installed in the air passage, and a material containing an antistatic agent should be used for the impeller, and static elimination should be performed without coating the impeller with an antistatic agent. Techniques for obtaining effects have been proposed. However, if the functional factors cannot be supplied to the entire impeller, a sufficient static elimination effect cannot be obtained.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a blower capable of supplying a functional factor to the entire impeller.

In order to solve the above-mentioned problems, the present invention sucks the impeller into the inside of the case through a rotary-driven impeller, a case portion that rectifies the flow of air generated by the impeller, and a suction port provided in the case portion. It is installed at the origin of the air flow and is provided with a functional factor generating part that generates a functional factor that acts on the impeller, and the case part rectifies the air flow along the circumferential direction of the impeller. It has one air passage forming portion and a second air passage forming portion that rectifies the air flow along the tangential direction of the impeller, and the functional factor generating portion releases the functional factor on the inner surface side of the case portion. It is a blower device installed on the tongue portion formed between the first air passage forming portion and the second air passage forming portion while being exposed to the airflow and facing the outer periphery of the impeller.

In the present invention, the functional factor can be made to act on the entire impeller by releasing the functional factor from the origin of the air flow sucked from the suction port by the rotation of the impeller.

In the present invention, since the functional factor can act on the entire impeller, it is possible to remove the obstructive factor that hinders the normal operation of the impeller.

It is a block diagram which shows an example of the bathroom ventilation drying heater of this embodiment. It is a block diagram which shows an example of the bathroom ventilation drying heater of this embodiment. It is a block diagram which shows an example of the bathroom ventilation drying heater of this embodiment. It is a block diagram which shows the installation example of the bathroom ventilation drying heater of this embodiment. It is explanatory drawing which shows the operation of the air passage switching damper in the bathroom ventilation drying heater of this embodiment. It is explanatory drawing which shows the operation of the air passage switching damper in the bathroom ventilation drying heater of this embodiment. It is explanatory drawing which shows the operation of the air passage switching damper in the bathroom ventilation drying heater of this embodiment. It is explanatory drawing which shows the air flow in the bathroom in the bathroom ventilation drying heater of this embodiment. It is a block diagram of the bathroom ventilation drying heater which shows the other example of the installation place of an ion generator. It is a block diagram of the bathroom ventilation drying heater which shows the other example of the installation place of an ion generator. It is a block diagram of the bathroom ventilation drying heater which shows the other example of the installation place of an ion generator.

Hereinafter, embodiments of a bathroom ventilation drying heater as a blower of the present invention will be described with reference to the drawings.

<Structure example of bathroom ventilation drying heater of this embodiment>
1 to 3 are configuration views showing an example of the bathroom ventilation drying heater of the present embodiment, FIG. 1 is a side view showing the internal configuration of the bathroom ventilation drying heater, and FIG. 2 is a view from the lower surface side. It is a plan view. Further, FIG. 3 is a plan view with the front panel attached. Further, FIG. 4 is a configuration diagram showing an installation example of the bathroom ventilation drying heater of the present embodiment.

The outline of the bathroom ventilation drying heater 1A of the present embodiment will be described. In the bathroom ventilation drying heater 1A, the main body 3A having the circulation ventilation fan 2A exposes the front panel 4A at the installation location. It is attached to the ceiling of a bathroom 100. In the bathroom ventilation drying heater 1A, the side to which the front panel 4A is attached is the lower side.

The bathroom ventilation drying heater 1A has a circulation ventilation fan 2A that sucks in and blows out air, a circulation ventilation suction port 20A in which air is sucked by the circulation ventilation fan 2A, and the heater 5 is driven so that warm air and the heater 5 are not used. It is provided with a first outlet 21A in which air corresponding to the room temperature in the bathroom 100 is blown out by driving, and a second outlet 22A in which air for stirring the air in the bathroom 100 is blown out.

Further, the bathroom ventilation drying heater 1A includes a ventilation outlet 23A that exhausts the air sucked from the circulation ventilation suction port 20A by the circulation ventilation fan 2A to the outside. Further, the bathroom ventilation drying heater 1A includes an air passage switching damper 6A that switches the air passage between the first air outlet 21A and the second air outlet 22A and the ventilation air outlet 23A.

In the bathroom ventilation drying heater 1A of the present embodiment, in the circulation ventilation fan 2A that generates an air flow, the circulation ventilation suction port is provided with a function factor generating portion that mainly generates and releases a functional factor that acts on the impeller 25A. In preparation for the starting point of the flow of air sucked from 20A, the action of the functional factor suppresses the adhesion of components such as dust in the air sucked into the circulation ventilation fan 2A to the impeller 25A.

The details of the bathroom ventilation drying heater 1A will be described below. The circulation ventilation fan 2A is an example of a ventilation means composed of a centrifugal fan, and is a circulation ventilation fan motor for driving a multi-blade impeller 25A and an impeller 25A. It includes 26A and a circulation ventilation fan case 27A that forms an air passage. The impeller 25A is driven by the circulation ventilation fan motor 26A and rotates to generate a flow of air blown out from the inside of the impeller 25A to the outer peripheral side in the centrifugal direction.

The circulation ventilation fan 2A includes a circulation ventilation suction port 20A on the lower surface of the circulation ventilation fan case 27A for sucking air. The circulation ventilation suction port 20A is configured by providing a circular opening called a bell mouth below along the rotation axis of the impeller 25A. The circulation ventilation fan case 27A is an example of a case portion, which is composed of a substantially circular portion along the outer circumference of the impeller 25A, and forms a first air passage that rectifies the air flow along the circumferential direction of the impeller 25A. A second air passage forming portion 27A12, which is composed of a portion 27A11 and a portion along the tangential direction of the impeller 25A and rectifies the air flow along the tangential direction of the impeller 25A, is provided. The shape is such that the tongue portion 27A1 is formed between the first air passage forming portion 27A11 and the second air passage forming portion 27A12. The circulation ventilation fan case 27A rectifies the air blown out in the centrifugal direction of the impeller 25A to generate a flow of air blown out along the tangential direction of the impeller 25A.

The circulation ventilation fan 2A is configured such that the direction of the rotation axis of the impeller 25A is along the vertical direction in a state where the bathroom ventilation drying heater 1A is installed on the ceiling of the bathroom 100.

As a result, the circulation ventilation fan 2A has a blowout air passage 28A that blows out the air sucked from the lower circulation ventilation suction port 20A along the rotation axis of the impeller 25A in the tangential direction of the impeller 25A, and the circulation ventilation fan case 27A. Is formed by.

The circulation ventilation fan 2A blows out air heated by driving the heater 5 or air corresponding to the temperature in the bathroom 100 by not driving the heater 5 on the lower surface of the circulation ventilation fan case 27A. The first air outlet 21A is provided.

Further, the circulation ventilation fan 2A is provided with a second outlet 22A on the lower surface of the circulation ventilation fan case 27A to blow out the air that agitates the inside of the bathroom 100. Further, the circulation ventilation fan 2A is provided with a ventilation outlet 23A on the side surface of the circulation ventilation fan case 27A, in which air is blown out to the outside.

The first outlet 21A is configured by providing a rectangular opening with a short side along the air blowing direction of the circulation ventilation fan case 27A on the lower surface of the blowing air passage 28A. The second outlet 22A circulates a rectangular opening whose short side is the side along the air blowing direction of the circulation ventilation fan case 27A with respect to the first outlet 21A on the lower surface of the blowing air passage 28A. It is provided on the opposite side of the ventilation suction port 20A.

The outlet air passage 28A composed of the circulation ventilation fan case 27A is widened at the portion where the first outlet 21A and the second outlet 22A are provided, and narrowed at the portion where the ventilation outlet 23A is provided. The long sides of the first air outlet 21A and the second air outlet 22A that intersect with the side along the air blowing direction by the circulation ventilation fan case 27A are adjusted to the length in the width direction of the main body 3A. ..

The first outlet 21A and the second outlet 22A are composed of an air passage forming frame 50A provided on the lower surface of the circulation ventilation fan case 27A. The first outlet 21A and the second outlet 22A are partitioned by a partition member 51A provided inside the air passage forming frame 50A, and the circulating air outlet air through which the air blown from the first outlet 21A passes passes. A passage and an agitated air outlet air passage through which the air blown from the second outlet 22A passes are formed.

The air passage switching damper 6A is an example of an air passage opening / closing means, in which a driving force of a damper motor (not shown) is transmitted and rotates around a shaft 60A as a fulcrum to provide a first outlet 21A, a second outlet 22A, and a ventilation outlet. It opens and closes with the outlet 23A.

The air passage switching damper 6A is predetermined from the branch portion 52A on the upstream side with respect to the air flow direction from the branch portion 52A between the first outlet 21A and the second outlet 22A composed of the partition member 51A. A shaft 60A for opening / closing operation by rotation is provided with a distance of.

In the air passage switching damper 6A, a portion upstream of the shaft 60A with respect to the air flow direction rotates with the shaft 60A as a fulcrum to open and close the first air outlet 21A and the ventilation air outlet 23A. Displace. Further, in the air passage switching damper 6A, a portion downstream of the shaft 60A with respect to the air flow direction is displaced in a direction of opening and closing the second air outlet 22A by a rotational operation with the shaft 60A as a fulcrum.

As a result, the air passage switching damper 6A is a portion extending upstream from the shaft 60A with respect to the air flow direction, and mainly switches the air passage between the first air outlet 21A and the ventilation air outlet 23A. At the same time, a main air passage switching portion 61A for switching the opening degree of the ventilation outlet 23A is configured. Further, the air passage switching damper 6A is a portion extending downstream from the shaft 60A with respect to the air flow direction, and mainly opens and closes the second air outlet 22A, and the air passage switching damper 6A is on the inner surface. An air passage to the first outlet 21A, an air passage to the first outlet 21A and a second outlet 22A are formed according to the opening degree of 6A, and the air passage to the ventilation outlet 23A is formed on the outer surface. The sub air passage switching portion 62A in which the air passage is formed is configured. Further, the air passage switching damper 6A extends along the direction of the rotational operation with the shaft 60A as a fulcrum on the tip side of the secondary air passage switching portion 62A, and the second outlet 22A with respect to the ventilation outlet 23A. A backflow prevention unit 63A is provided to close the space.

In the bathroom ventilation drying heater 1A, assuming that the position of the air passage switching damper 6A is the circulation position shown by the solid line in FIG. 1, which is the first position, the main air passage on the upstream side of the axis 60A with respect to the air flow direction. In the switching portion 61A, the tip of the main air passage switching portion 61A, which is one end of the air passage switching damper 6A, comes into contact with the upper inner surface of the circulation ventilation fan case 27A.

Further, in the secondary air passage switching portion 62A on the downstream side of the shaft 60A with respect to the air flow direction, the tip of the secondary air passage switching portion 62A, which is the other end of the air passage switching damper 6A, comes into contact with the branch portion 52A. .. Further, the backflow prevention unit 63A closes the second outlet 22A with respect to the ventilation outlet 23A. As a result, the first air outlet 21A is opened, the second air outlet 22A and the ventilation air outlet 23A are closed, and a circulation air passage communicating from the circulation ventilation suction port 20A to the first air outlet 21A is formed. ..

In the bathroom ventilation drying heater 1A, assuming that the position of the air passage switching damper 6A is rotated from the circulation position to the axis 60A as a fulcrum to be the second position, which is the circulation ventilation position shown by the broken line in FIG. 1, from the axis 60A. The main air passage switching portion 61A on the upstream side moves downward, and one end of the air passage switching damper 6A is located near the middle of the blowout air passage 28A.

Further, the secondary air passage switching portion 62A on the downstream side of the shaft 60A moves upward away from the branch portion 52A. As a result, both the first air outlet 21A and the second air outlet 22A and the ventilation air outlet 23A are opened, and both the circulation air passage and the ventilation air passage communicating from the circulation ventilation suction port 20A to the ventilation air outlet 23A. Is formed.

In the bathroom ventilation drying heater 1A, assuming that the position of the air passage switching damper 6A is rotated from the circulation ventilation position to the axis 60A as a fulcrum to be the ventilation position shown by the one-point chain line in FIG. 1, which is the third position, the axis 60A. The main air passage switching portion 61A on the upstream side moves downward, and one end of the air passage switching damper 6A comes into contact with the lower inner surface of the circulation ventilation fan case 27A. Further, the auxiliary air passage switching portion 62A on the downstream side of the shaft 60A moves upward, and the other end of the air passage switching damper 6A comes into contact with the inner surface of the circulation ventilation fan case 27A below the ventilation outlet 23A. As a result, the ventilation outlet 23A is opened, the first outlet 21A and the second outlet 22A are closed, and the ventilation air passage is formed.

As a result, in the bathroom ventilation drying heater 1A, one circulation ventilation fan 2A sucks in the air in the bathroom 100 and blows out the sucked air into the bathroom 100, exhausts the sucked air to the outside, and sucks in. A part of the air is blown into the bathroom 100, and the rest is exhausted to the outside.

Further, in the bathroom ventilation drying heater 1A, one air passage switching damper 6A opens and closes the first air outlet 21A, the second air outlet 22A, and the ventilation air outlet 23A.

The heater 5 is an example of a heating means. In this example, the heater 5 is composed of a PTC heater and is provided in a circulating air outlet through which the air blown from the first outlet 21A passes. When the heater 5 is driven and energized, the heater 5 is heated to heat the air passing through the first outlet 21A, and warm air is blown out from the first outlet 21A.

The first outlet 21A and the second outlet 22A are partitioned by a partition member 51A, and the air blown from the second outlet 22A does not pass through the heater 5. In this example, the heater 5 driven by electricity has been described as an example of the heating means, but a heater such as a heat exchanger using hot water may also be used.

The main body 3A includes a main body chassis 30A constituting the circulation ventilation fan case 27A and a metal case 31A covering the main body chassis 30A. The main body chassis 30A is made of a resin material, and a circulating ventilation fan case 27A covered with a metal case 31A and a flange portion 32A protruding outward from the peripheral edge of the lower end of the main body 3A are integrally formed.

The lower cover 33A is attached to the lower surface of the main body chassis 30A exposed from the metal case 31A. In the circulation ventilation fan 2A, the circulation ventilation suction port 20A, the first outlet 21A and the second outlet 22A are provided on the lower cover 33A, and the air passage forming frame 50A is attached to the lower cover 33A.

The metal case 31A is provided with an opening facing the ventilation outlet 23A of the circulation ventilation fan 2A, and an exhaust duct joint 34A communicating with the ventilation outlet 23A is attached to the side surface.

In the bathroom ventilation drying heater 1A, the front panel 4A is attached to the lower surface of the main body 3A. The front panel 4A has a suction port grill 40A formed by opening the lower surface of the circulation ventilation fan 2A facing the circulation ventilation suction port 20A.

Further, in the front panel 4A, the lower surface of the circulation ventilation fan 2A facing the first outlet 21A is opened to form the first outlet grill 41A, and the lower surface of the circulation ventilation fan 2A facing the second outlet 22A is formed. The opening opens to form the second outlet grill 42A.

The first outlet grill 41A is composed of a rectangular opening having an elongated length along the lateral direction, which is the direction along one side of the main body 3A. Further, the second outlet grill 42A, like the first outlet grill 41A, has a rectangular opening having an elongated length along the lateral direction, which is the direction along one side of the main body 3A. It is composed.

The first outlet grill 41A is provided with a straightening vane so that air is blown out along the longitudinal direction. The second outlet grill 42A blows air toward the outside of the main body 3A opposite to the first outlet grill 41A along the lateral direction parallel to the first outlet grill 41A. As such, the rectifying plate 43A is provided.

The bathroom ventilation drying heater 1A includes an ion generator 10 as a functional factor generator. The ion generator 10 generates and releases ions as a functional factor, and mainly removes static electricity from the impeller 25A. Therefore, the ions mainly function as a static elimination factor for statically eliminating the impeller 25A, and the ion generator 10 functions as a static elimination factor generating unit for generating and releasing ions.

The ion generator 10 generates both positive and negative ions or at least either positive or negative ions. The principle of the generation of positive ions and negative ions, oxygen or moisture in the air is ionized by receiving energy by ionizing by corona discharge, H ⁺ and (H ₂ O) _{m (m} is an arbitrary natural number), O ₂ ^- (H ₂ O) _n (n is an arbitrary natural number) emits the main ion.

By generating approximately the same number of positive and negative ions in the ion generator 10 in conjunction with the operation of the circulation ventilation fan 2A in the bathroom ventilation drying heater 1A, the components in the positively charged air and the impeller 25A When the impeller 25A is positively charged, the impeller 25A is discharged with negative ions. Further, by generating positive ions from the ion generator 10, the negatively charged components in the air and, when the impeller 25A is negatively charged, the impeller 25A is discharged with positive ions.

The ion generator 10 includes an electrode needle that performs corona discharge and a cover (not shown) that covers the electrode needle, and comprises an ion emitting portion 10A. The ion generator 10 is installed at a position where the ions generated from the ion generator 10 can act on the impeller 25A by the flow of air generated by the rotation of the impeller 25A.

Next, the installation location of the ion generator 10 will be described. The ion generator 10 causes the impeller 25A to act on the ions by supplying the ions to the air sucked from the circulation ventilation suction port 20A.

In the embodiment shown in FIGS. 1 and 2, the ion generator 10 is a surface of the circulation ventilation fan case 27A provided with the circulation ventilation suction port 20A, in this example, the lower surface side of the circulation ventilation fan case 27A and circulation. It is installed outside the ventilation suction port 20A at a predetermined position on a substantially circumferential circumference along the shape of the circulation ventilation suction port 20A.

As the impeller 25A rotates, the air sucked from the circulation ventilation suction port 20A flows along the lower surface of the circulation ventilation fan case 27A as shown by the arrow W1. As a result, outside the circulation ventilation fan case 27A, the position on the lower surface side of the circulation ventilation fan case 27A and outside the circulation ventilation suction port 20A on the substantially circumference along the shape of the circulation ventilation suction port 20A is determined. It becomes the starting portion 200A1 of the air flow in contact with the impeller 25A.

Further, the air sucked from the circulation ventilation suction port 20A flows inside the circulation ventilation fan case 27A along the inner surface of the circulation ventilation fan case 27A as shown by the arrow W2, and blows out in the tangential direction of the impeller 25A. Will be done. As a result, inside the circulation ventilation fan case 27A, the tongue portion 27A1 becomes the starting portion 200A2 of the air flow in contact with the impeller 25A.

Therefore, the ion generator 10 is located on the lower surface side of the circulation ventilation fan case 27A, which is the starting portion 200A1, and outside the circulation ventilation suction port 20A, on a substantially circumferential circumference along the shape of the circulation ventilation suction port 20A. It is installed at the position of. More preferably, the ion generator 10 is installed on the substantially circumferential circumference along the shape of the circulation ventilation suction port 20A and on the lower surface side of the tongue portion 27A1 which is the starting portion 200A2.

The ion generator 10 has a form in which the entire portion including the discharge portion 10a is exposed on the lower surface side of the circulation ventilation fan case 27A so that the ion discharge portion 10a is exposed in the path through which the air sucked from the circulation ventilation suction port 20A flows. It may be installed. Further, the ion generator 10 may be installed in a form in which the emission portion 10a is exposed on the lower surface side of the circulation ventilation fan case 27A and other parts are projected inside the circulation ventilation fan case 27A.

_{^{Incidentally, H + (H 2 O)}} m and O ₂ emitted from the ion generator 10 ^- (H ₂ O) _n is attached to the surface of airborne bacteria, H ₂ O ₂ is active species by chemical reaction Or ・ Generate OH. H ₂ O ₂ or · OH exhibits extremely strong activity, which allows them to surround and remove airborne bacteria. Here, ・ OH is one of the active species and indicates radical OH.

This makes it possible to remove airborne bacteria and suppress the growth of mold and the like. It should be noted that the ion generator 10 may generate only positive ions or only negative ions, and may use other methods instead of corona discharge.

Further, the bathroom ventilation drying heater 1A has both positive ions and negative ions on the upstream side of the first outlet 21A and the second outlet 22A, which are the outlets, and on the downstream side of the ion generator 10. Alternatively, an ion generator 10B that generates at least either a positive ion or a negative ion may be provided.

The ion generator 10B is an example of an air purifying factor generating unit, and generates ions as an air purifying factor that purifies the air. An ion H ⁺ (H ₂ O) _m and _{^{O 2 - (H 2 O)}} n is attached to the surface of airborne bacteria, to produce a H ₂ O ₂ or · OH which is an active species by a chemical reaction. H ₂ O ₂ or · OH exhibits extremely strong activity, which allows them to surround and remove airborne bacteria. Here, ・ OH is one of the active species and indicates radical OH.

As a result, the bathroom ventilation drying heater 1A generates approximately the same number of positive and negative ions in conjunction with the operation of the circulation ventilation fan 2A, and blows air containing approximately the same number of positive and negative ions to circulate. It is possible to suppress the growth of mold and the like by removing both the airborne bacteria contained in the air and the airborne bacteria in the bathroom air.

It should be noted that the ion generator 10B may generate only positive ions or only negative ions, and may use other methods instead of corona discharge. Further, as an air purifying factor for removing both airborne bacteria contained in the circulating air and airborne bacteria in the bathroom air, other air purifying factors such as ozone may be used instead of ions. Further, the air purifying factor generating part may use a spraying means for spraying silver ions, a chemical for deodorizing and sterilizing, a chemical for promoting a moisturizing effect, etc., and adheres to airborne bacteria, clothing, etc. Any form of air treatment means that imparts a specific function to air, such as those that suppress the growth of bacteria, those that remove bacteria, and those that release functional factors that have a moisturizing effect. It may be one.

<Installation example of bathroom ventilation drying heater of this embodiment>
Next, an installation example of the bathroom ventilation drying heater 1A of the present embodiment will be described with reference to each figure.

As shown in FIG. 4, the bathroom ventilation drying heater 1A is installed on the ceiling panel 101 of the bathroom 100. The ceiling panel 101 of the bathroom 100 is formed with an opening to which the main body 3A of the bathroom ventilation drying heater 1A is attached, and the bathroom ventilation drying heater 1A is provided behind the ceiling with, for example, a screw whose flange portion 32A is not shown. It is attached to the ceiling panel 101 in a form of being fixed to the reinforcing member.

In the bathroom ventilation drying heater 1A, the front panel 4A is attached to the lower surface of the main body 3A, and the suction port grill 40A of the front panel 4A and the first outlet grill 41A and the second outlet grill 42A are provided. It is arranged facing the bathroom 100.

In the bathroom ventilation drying heater 1A installed on the ceiling panel 101 of the bathroom 100, the exhaust duct 102 is attached to the exhaust duct joint 34A of the main body 3A. The exhaust duct 102 is connected to an outdoor grill 102a attached to an outer wall of a building (not shown) in which the bathroom 100 is installed, and the bathroom ventilation drying heater 1A is connected to the outside via the exhaust duct 102.

The bathroom 100 includes a bathtub 103 and a washing area 104. The bathtub 103 is generally rectangular, and the bathtub 103 and the washing place 104 are arranged along the lateral direction of the bathtub 103.

The bathroom 100 includes a land repipe 105, which is a clothes-drying member, above the bathtub 103. The land repipe 105 extends along the longitudinal direction of the bathtub 103 and is attached between the opposing wall surfaces 106a and 106b of the bathroom 100.

The number of land repipes 105 installed in the bathroom 100 is about one or two, and in this example, an example in which one land repipe 105 is arranged is shown. Further, the clothes-drying member is not limited to the pipe-shaped member, but may be a string-shaped member or any other material as long as the object to be dried such as laundry can be dried.

The bathroom ventilation drying heater 1A is installed on the upper part of the bathtub 103 so that the longitudinal direction of the first outlet grill 41A and the second outlet grill 42A is orthogonal to the longitudinal direction of the land repipe 105. Will be done.

As a result, in the bathroom ventilation drying heater 1A, the air blown out from the first outlet grill 41A spreads mainly in the direction orthogonal to the land repipe 105. On the other hand, the air blown from the second outlet grill 42A is directed to the wall surface 106a of the bathroom 100 on the side where the second outlet grill 42A is provided.

<Operation example of bathroom ventilation drying heater of this embodiment>
5 and 7 are explanatory views showing the operation of the air passage switching damper in the bathroom ventilation drying heater of the present embodiment, and FIG. 8 shows the flow of air in the bathroom in the bathroom ventilation drying heater of the present embodiment. Next, an operation example of the bathroom ventilation drying heater 1A of the present embodiment will be described with reference to each figure.

In the drying operation mode, the bathroom ventilation drying heater 1A sets the air passage switching damper 6A to the circulation ventilation position shown in FIG. 6, drives the circulation ventilation fan motor 26A to rotate the impeller 25A, and energizes the heater 5. ..

In the bathroom ventilation drying heater 1A, when the impeller 25A rotates, the air in the bathroom 100 is sucked into the circulation ventilation suction port 20A from the suction port grill 40A of the front panel 4A.

In the dry operation mode, since the air passage switching damper 6A is in the circulation ventilation position, in the outlet air passage 28A, the circulation air passage communicating from the circulation ventilation suction port 20A to the first outlet 21A and the second outlet 22A , Both ventilation air passages communicating from the circulation ventilation suction port 20A to the ventilation outlet 23A are formed.

As a result, a part of the air RA of the bathroom 100 sucked from the circulation ventilation suction port 20A by rotating the impeller 25A flows to the first air outlet 21A and the second air outlet 22A. Further, the rest of the air of the bathroom 100 sucked from the circulation ventilation suction port 20A flows to the ventilation outlet 23A, passes through the exhaust duct 102, and is exhausted to the outside as exhaust EA from the outdoor grill 102a.

In the dry operation mode, the air flowing through the first outlet 21A is heated by the heater 5, so that the warm air HA is blown out from the first outlet grill 41A of the front panel 4A. Since the air flowing through the second outlet 22A does not pass through the heater 5, the air A corresponding to the room temperature is blown out from the second outlet grill 42A of the front panel 4A.

In the bathroom ventilation drying heater 1A, the air blown from the first outlet grill 41A spreads in the longitudinal direction of the land repipe 105 and in the direction orthogonal to the land repipe 105.

However, since the bathroom ventilation drying heater 1A is arranged so that the longitudinal direction of the first outlet grill 41A is orthogonal to the land repipe 105, the air blown out from the first outlet grill 41A is mainly. It spreads in the direction orthogonal to the land repipe 105.

Therefore, warm air is blown to the entire width direction of the object to be dried such as clothes hung on the land repipe 105 immediately below the first outlet grill 41A. On the other hand, for the object to be dried hung on the land repipe 105 located away from directly below the first outlet grill 41A, the warm air blown out from the first outlet grill 41A directly. It's hard to hit.

In the bathroom ventilation drying heater 1A, the air A blown out from the second outlet grill 42A is on the side where the second outlet grill 42A is provided with respect to the first outlet grill 41A by the rectifying plate 43A. It is directed to the wall surface 106a of the bathroom 100.

As a result, as shown in FIG. 8A, the air A blown out from the second outlet grill 42A in the drying mode is applied to one wall surface 106a of the bathroom 100, and the wall surface 106a is shown by the arrow A1. Flows downward along. The air flowing downward along the wall surface 106a flows in the vicinity of the lower layer of the bathroom 100 mainly toward the other wall surface 106b, as shown by the arrow A2.

In the bathroom ventilation drying heater 1A, the air RA sucked from the suction port grill 40A creates a flow for circulating air in the bathroom 100, so that the air flowing in the vicinity of the lower layer of the bathroom 100 toward the other wall surface 106b. Flows upward along the wall surface 106b as shown by the arrow A3, and is sucked from the suction port grill 40A.

As described above, in the bathroom ventilation drying heater 1A, the air blown from the second outlet grill 42A goes downward along one wall surface 106a of the bathroom 100, and the vicinity of the lower layer of the bathroom 100 is the other wall surface 106b. It is possible to generate an upward flow of air along the other wall surface 106b.

In the dry operation mode, the air blown from the first outlet grill 41A of the bathroom ventilation drying heater 1A is warm air heated by the heater 5, and the relative humidity is lowered, so that the second outlet grill It is lighter than the air blown from 42A.

Therefore, the air blown out from the second outlet grill 42A, which is heavier than the air blown out from the first outlet grill 41A, flows to the lower layer of the bathroom 100 and agitates the air throughout the bathroom 100. It can create a flow of wind.

As a result, the warm air blown out from the first outlet grill 41A can be easily hit even in the vicinity of the object to be dried hung on the land repipe 105 located away from directly below the first outlet grill 41A. It can create a flow of air.

In the bathroom ventilation drying heater 1A, in the circulation ventilation operation mode, the air passage switching damper 6A is set to the circulation ventilation position shown in FIG. 6, the heater 5 is not driven, and the circulation ventilation fan motor 26A is driven to rotate the impeller 25A. Let me. Here, in the above-mentioned dry operation mode and circulation ventilation operation mode, the opening degree of the air passage switching damper 6A is ventilated so that the ventilation air volume, which is the air volume exhausted to the outside, is larger in the circulation ventilation operation mode. It may be changed to a position where the opening degree of the outlet 23A becomes wider.

In the bathroom ventilation drying heater 1A, the impeller 25A rotates, so that the air in the bathroom 100 is sucked into the circulation ventilation suction port 20A from the suction port grill 40A of the front panel 4A.

In the circulation ventilation operation mode, since the air passage switching damper 6A is in the circulation ventilation position, a part of the air of the bathroom 100 sucked from the circulation ventilation suction port 20A is the first outlet 21A and the second outlet 22A. Flow to. Further, the rest of the air in the bathroom 100 sucked from the circulation ventilation suction port 20A flows to the ventilation outlet 23A and is exhausted to the outside.

In the circulation ventilation operation mode, since the heater 5 is not driven for the air flowing through the first outlet 21A, the air CA corresponding to the room temperature is blown out from the first outlet grill 41A of the front panel 4A. Since the air flowing through the second outlet 22A does not pass through the heater 5, the air A corresponding to the room temperature is blown out from the second outlet grill 42A of the front panel 4A.

In the bathroom ventilation drying heater 1A, as shown in FIG. 8B, even in the circulation ventilation operation mode, the air blown from the second outlet grill 42A moves downward along one wall surface 106a of the bathroom 100. Facing, the vicinity of the lower layer of the bathroom 100 can be directed toward the other wall surface 106b, and an upward air flow can be generated along the other wall surface 106b.

As a result, even in the circulation ventilation operation mode, it is possible to generate a flow of air that agitates the air in the entire bathroom 100, and the air blown out from the first outlet grill 41A directly in the bathroom 100. It is possible to create an air flow even in a place where it is difficult to hit.

Therefore, the drying time of each wall surface, floor surface, etc. of the bathroom 100 can be shortened. Further, since a part of the air in the bathroom 100 is exhausted to the outside to be ventilated, it is possible to discharge moisture and the like to promote the drying of each wall surface, floor surface and the like of the bathroom 100.

As another operation mode executed by the bathroom ventilation drying heater 1A, in the heating operation mode, the air passage switching damper 6A is set to the circulation position shown in FIG. 5, the heater 5 is energized, and the circulation ventilation fan motor 26A is operated. Drive to rotate the impeller 25A.

In the bathroom ventilation drying heater 1A, the impeller 25A rotates, so that the air in the bathroom 100 is sucked into the circulation ventilation suction port 20A from the suction port grill 40A of the front panel 4A.

In the heating operation mode, since the air passage switching damper 6A is in the circulation position, substantially all of the air in the bathroom 100 sucked from the circulation ventilation suction port 20A flows to the first outlet 21A. In the heating operation mode, the air flowing through the first outlet 21A is heated by the heater 5, so that warm air is blown out from the first outlet grill 41A of the front panel 4A.

In the heating operation mode, since the air passage switching damper 6A is in the circulation position, the air in the bathroom 100 is not ventilated. As a result, in the heating operation mode, the air in the bathroom 100 is circulated while blowing warm air from the first outlet grill 41A, so that the temperature in the bathroom 100 can be raised to a temperature suitable for bathing. can.

Further, when the air passage switching damper 6A is in the circulation position, the second outlet 22A is blocked in addition to the ventilation outlet 23A, so that the air that does not pass through the heater 5 is not blown out. As a result, even in the heating operation mode executed during bathing, the air not heated by the heater 5 is not blown out, and the bather does not feel cold.

Further, when the air passage switching damper 6A is in the circulation position, the second outlet 22A is blocked by the backflow prevention portion 63A with respect to the ventilation outlet 23A, so that the outside air can be prevented from flowing back into the bathroom 100. Can be done.

In the ventilation operation mode, the air passage switching damper 6A is set to the ventilation position shown in FIG. 7, the heater 5 is not driven, and the circulation ventilation fan motor 26A is driven to rotate the impeller 25A.

In the bathroom ventilation drying heater 1A, the impeller 25A rotates, so that the air in the bathroom 100 is sucked into the circulation ventilation suction port 20A from the suction port grill 40A of the front panel 4A.

In the ventilation operation mode, since the air passage switching damper 6A is in the ventilation position, the first air outlet 21A and the second air outlet 22A are blocked, which is an abbreviation for the air in the bathroom 100 sucked from the circulation ventilation suction port 20A. The entire amount flows to the ventilation outlet 23A and is exhausted to the outside. Therefore, in the ventilation operation mode, steam and humidity in the bathroom 100 can be discharged to suppress dew condensation and the like, and the generation of mold can be suppressed.

In each of the above-mentioned operation modes, the ion generator 10 generates and emits positive ions and negative ions. By installing the ion generator 10 at a position corresponding to the starting points 200A1 and 200A2 of the air flow, the positive and negative ions generated and released by the ion generator 10 are sucked from the circulation ventilation suction port 20A. The flow of air is in contact with the entire impeller 25A.

As a result, positive and negative ions can act on the entire impeller 25A, and when the impeller 25A is positively charged by static electricity, the impeller 25A is statically eliminated by the negative ions in the air. In addition, the positively charged components in the air are statically eliminated by negative ions. When the impeller 25A is negatively charged, the impeller 25A is statically eliminated by positive ions in the air. In addition, the negatively charged components in the air are statically eliminated by positive ions.

Therefore, it is possible to prevent components such as dust in the air, which hinder the normal operation of the impeller 25A from obtaining a predetermined air volume, from being attracted by static electricity and adhering to the impeller 25A. Further, since the ion generator 10 is installed on the lower surface side of the circulation ventilation fan case 27A and outside the circulation ventilation suction port 20A, the ion generator 10 does not protrude into the circulation ventilation suction port 20A, and ions are generated. The vessel 10 does not obstruct the flow of air.

<Modification example of bathroom ventilation drying heater of this embodiment>
9 to 11 are block diagrams of a bathroom ventilation drying heater showing another example of the installation location of the ion generator. In the embodiment shown in FIG. 9, the ion generator 10 is installed on the inner side surface of the tongue portion 27A1 of the circulation ventilation fan case 27A, which is the starting portion 200A2 of the air flow, facing the outer periphery of the impeller 25A. ..

The ion generator 10 exposes the ion discharge portion 10A to the inner surface of the circulation ventilation fan case 27A so that the ion discharge portion 10A is exposed in the path through which the air sucked into the circulation ventilation fan case 27A flows from the circulation ventilation suction port 20A. The configuration may be such that it is exposed to the side and other parts are projected to the outside of the circulation ventilation fan case 27A.

Even if the ion generator 10 is installed at a position corresponding to the starting portion 200A2 of the air flow inside the circulation ventilation fan case 27A, the positive ions and negative ions generated and released by the ion generator 10 circulate. The flow of air sucked from the ventilation suction port 20A comes into contact with the entire impeller 25A.

As a result, positive and negative ions can act on the entire impeller 25A, and when the impeller 25A is positively charged by static electricity, the impeller 25A is statically eliminated by the negative ions in the air. In addition, the positively charged components in the air are statically eliminated by negative ions. When the impeller 25A is negatively charged, the impeller 25A is statically eliminated by positive ions in the air. In addition, the negatively charged components in the air are statically eliminated by positive ions.

Therefore, it is possible to prevent components such as dust in the air, which hinder the normal operation of the impeller 25A from obtaining a predetermined air volume, from being attracted by static electricity and adhering to the impeller 25A. Further, since the ion generator 10 is installed on the inner surface of the circulation ventilation fan case 27A, the ion generator 10 does not obstruct the air flow.

In the embodiment shown in FIG. 10, the ion generator 10 is installed on the front panel 4A by exposing the ion emitting portion 10A on the inner surface of the suction port grill 40A of the front panel 4A. The suction port grill 40A of the front panel 4A serves as a starting point for the flow of air sucked into the circulation ventilation suction port 20A.

In the embodiment shown in FIG. 11, the ion generator 10 is located on the lower surface side of the circulation ventilation fan case 27A and outside the circulation ventilation suction port 20A on a substantially circumference along the shape of the circulation ventilation suction port 20A. It is installed at a predetermined position on the opposite side of the tongue 27A1. An arbitrary position on the substantially circumference along the shape of the circulation ventilation suction port 20A serves as the starting point of the flow of air sucked into the circulation ventilation suction port 20A.

In this way, by installing the ion generator 10 at the start of the flow of air sucked into the circulation ventilation suction port 20A, ions can be allowed to act on the entire impeller 25A.

The present invention is applied to a blower installed in a space for drying an object to be dried, such as a bathroom.

1A ... Bathroom ventilation drying heater, 10 ... Ion generator (functional factor generator), 10A ... Emission part, 10B ... Ion generator (air purifying factor generator), 2A ... Circulation ventilation fan (blower means), 20A ... Circulation ventilation suction port (suction port), 21A ... 1st outlet (outlet), 22A ... 2nd outlet (outlet), 23A ... Ventilation outlet, 25A ... Impeller, 27A ... Circulation ventilation fan case (case part), 27A1 ... Tongue part, 27A11 ... First air passage forming part, 27A12 ... Second air passage forming part, 4A ... front panel, 40A ... suction port grill, 41A ... first outlet grill, 42A ... second outlet grill, 5 ... heater , 6A ・ ・ ・ Ventilation switching damper, 100 ・ ・ ・ Bathroom

Claims (2)

Rotating impeller and
A case part that rectifies the flow of air generated by the impeller, and
It is provided with a functional factor generating portion which is installed at the starting portion of the flow of air sucked into the inside of the case portion from the suction port provided in the case portion and generates a functional factor acting on the impeller .
The case portion includes a first air passage forming portion that rectifies the air flow along the circumferential direction of the impeller, and a second air passage that rectifies the air flow along the tangential direction of the impeller. Has a forming part,
The functional factor generating portion exposes the functional factor emitting portion to the inner surface side of the case portion and faces the outer periphery of the impeller to form the first air passage forming portion and the second air passage forming portion. A blower that is installed on the tongue formed between the parts. The claim is characterized in that an air purifying factor generating portion for generating an air purifying factor for purifying air is provided on the upstream side of the air outlet provided in the case portion and on the downstream side of the functional factor generating portion. The blower according to 1.

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