JP2023050358A - Discharge product generator - Google Patents

Abstract

To provide a discharge product generator capable of improving an air induction amount of a negative pressure generation hole, in the discharge product generator inducing the air from the negative pressure generation hole, and discharging a discharge product produced in discharge product generation means from a blowout port with the air to the outside of the discharge product generator.SOLUTION: A negative pressure generation hole 32 is provided on a tongue piece formation surface 27 having a tongue piece 26 of a casing portion 10c, the negative pressure generation hole 32 is formed at a downstream side in an air blowing direction in the casing portion 10c with respect to a contact point B on a tangential line A from a rotation center of a blade to the tongue piece 26, and a distance between the negative pressure generation hole 32 and the contact point B is shorter than a distance between the negative pressure generation hole 32 and a blowout port 5.SELECTED DRAWING: Figure 4

Description

The present invention relates to a discharge product generator.

Discharge product generators are used, for example, to decompose odors, and some are equipped with an air cleaning function or a dehumidifying function. The configuration of such a conventional discharge product generating device is as follows.

Conventionally, a body case having a first air intake port, a second air intake port, and an air outlet is provided, and an air blower provided in the body case. and an electric motor for rotating the blades. The blower blows the air taken into the main body case from the first intake port to the blowout port, and faces the tongue piece of the casing part. A negative pressure generating hole is provided on the surface facing the tongue piece, and a discharge product generating means is provided outside the casing portion of the negative pressure generating hole. 2. Description of the Related Art A discharge product generator is known in which an air passage leading to an air outlet is formed inside a unit (see, for example, Patent Document 1). In the conventional discharge product generating device, the operation of the blades creates a negative pressure inside the casing, and the negative pressure is used to attract air from the negative pressure generating holes to blow the discharge products generated by the discharge product generating means. It was discharged out of the discharge product generator together with the air from the outlet.

Japanese Patent No. 5471553

In such a conventional discharge product generator, the more the amount of discharge products discharged together with the air from the blower port, the greater the effect of decomposing odors. The amount of discharge product discharged is affected by the amount of air drawn by the negative pressure generating holes.

The discharge product generator described in Patent Document 1 has a negative pressure generating hole on a tongue-facing surface facing the tongue. It is considered that the force of the wind due to the rotation of the first blades being pressed vertically tends to act on the surface facing the tongue piece, and the amount of attraction is reduced. That is, there is a demand for a further improvement in the amount of attraction by the negative pressure generating holes.

A body case having a first air intake port, a second air intake port, and an air outlet, and an air blower provided in the body case, wherein the air blower is provided in a scroll-shaped casing portion and the casing portion. and an electric motor for rotating the blades. The blower blows the air sucked into the main body case from the first air intake port to the air outlet, and the tongue of the casing part. A negative pressure generating hole is provided on a tongue forming surface having a piece, a discharge product generating means is provided outside the casing portion, and from the second intake port, the discharge product generating means, the negative pressure generating hole, An air passage leading to the air outlet is formed in the casing portion, and the negative pressure generating hole is provided downstream in the air blow direction in the casing portion from a contact point on a tangent line from the rotation center of the blade to the tongue, A discharge product generator, wherein the distance between the negative pressure generating hole and the contact is shorter than the distance between the negative pressure generating hole and the outlet.

With the above configuration, it is possible to provide a discharge product generating device capable of improving the amount of air drawn into the negative pressure generating hole.

1 is a perspective view of a discharge product generator according to an embodiment of the present invention; FIG. 2 is an exploded perspective view of the discharge product generator; Schematic cross-sectional view of the discharge product generator Schematic cross-sectional view of the discharge product generator Sectional drawing which shows the peripheral structure of the negative pressure generation hole of the discharge product generator. The enlarged perspective view of the projecting portion of the same discharge product generator

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a perspective view of a discharge product generator according to an embodiment of the present invention, FIG. 2 is an exploded perspective view, and FIG. 3 is a schematic cross-sectional view in a horizontal plane.

As shown in FIGS. 1, 2, and 3, the discharge product generator of this embodiment includes a box-shaped main body case 1 provided with a first air inlet 2 and a second air inlet 3 on the front surface of the main body. An operation part 4 is provided on the front side of the upper surface of the case 1 , and an air outlet 5 is provided on the rear side of the upper surface of the main body case 1 . The user can operate the discharge product generator and confirm the operation mode by operating the operation unit 4 . A rotatable louver 6 is provided above the outlet 5 . A water storage part 7 is provided in a retractable manner on the lower side of the back side of the main body case 1, and stores dehumidified water generated in the main body case 1. - 特許庁

Main body case 1 contains dehumidifying means 8, regeneration unit 9, blower 10, discharge product generating section 11, dehumidifying air passage 12, cooling air passage 13, discharge product generating air passage 14, It has

The dehumidifying means 8 has a dehumidifying rotor 15 , a support frame 16 and a motor 17 .

The dehumidification rotor 15 is disk-shaped and is rotatably provided on the support frame 16 so that the rotation axis extends in the horizontal direction. The dehumidifying rotor 15 is configured in a honeycomb shape that supports an adsorbent and is capable of ventilating in the axial direction. It has the characteristic that the amount of water that can be retained decreases as the temperature increases. In this way, repeated contact with air having different relative humidity causes absorption and desorption of moisture according to the difference in the amount of moisture that can be retained by the adsorbent at each relative humidity. The dehumidification rotor 15 has a moisture absorption region 15 a that adsorbs moisture in the air to the dehumidification rotor 15 and a moisture release region 15 b that releases the moisture adsorbed to the dehumidification rotor 15 . The outer circumference of the dehumidifying rotor 15 has a large number of teeth 15c.

The support frame 16 is arranged so as to separate the front side and the back side of the main body case 1, and has a circular opening 16a in the central portion. The dehumidifying rotor 15 is arranged between the back surface of the main body case 1 and the support frame 16 and is rotatably provided so as to close the opening 16 a of the support frame 16 .

The motor 17 is fixed to the support frame 16 and has a gear 17a. The gear 17a contacts a number of teeth 15c projecting from the outer periphery of the dehumidifying rotor 15. As shown in FIG. When the motor 17 is driven, the gear 17a rotates, and the dehumidifying rotor 15 is also rotated by this gear 17a.

The regeneration unit 9 has a circulating air that communicates with one side of the moisture release area 15b of the dehumidifying rotor 15 (the front side of the main body case 1) and the other side of the moisture releasing area 15b of the dehumidification rotor 15 (the back side of the main body case 1). It has a passage 18 , a heat generating section 19 , a heat exchanger 20 and a circulation fan 21 provided in the circulation air passage 18 .

The heat generating portion 19 is arranged on one side surface of the moisture releasing area 15b of the dehumidifying rotor 15 (the rear surface side of the main body case 1). The heat generating portion 19 is made of a material such as a nichrome wire that generates heat when energized.

The heat exchanger 20 exchanges heat between the regeneration air containing moisture released from the moisture desorption region 15b of the dehumidification rotor 15 and the room air supplied by the blower 10 to condense the moisture. The heat exchanger 20 is arranged horizontally adjacent to the dehumidification rotor 15 between the front surface of the main body case 1 and the support frame 16 .

The circulation fan 21 is configured as a so-called sirocco fan in which a circulation motor 21 a and an impeller 21 b are combined, and circulates air within the circulation air passage 18 . The circulation fan 21 is arranged between the heat generating section 19 and the heat exchanger 20 in the circulation air passage 18 . The air blown from the circulation fan 21 is sucked into the circulation fan 21 through the heat generating portion 19 , the moisture release area 15 b in the dehumidification rotor 15 and the heat exchanger 20 in order.

The blower 10 is arranged between the back surface of the main body case 1 and the support frame 16 . The blower 10 includes an electric motor 10a, blades 10b rotated by the electric motor 10a, and a scroll-shaped casing portion 10c surrounding them.

The electric motor 10a is fixed to the casing portion 10c.

The blade 10b is a sirocco fan and is fixed to a rotating shaft (not shown) extending horizontally from the electric motor 10a. A rotating shaft of the electric motor 10a extends from the front side of the main body case 1 to the back side thereof.

FIG. 4 is a schematic cross-sectional view showing the inside of the casing of the discharge product generator according to the embodiment of the invention.

As shown in FIGS. 3 and 4, a discharge port 22 and a suction port 23 are provided in the casing portion 10c. The discharge port 22 is provided on the upper surface side of the main body case 1 of the casing portion 10c. In addition, the suction port 23 is provided on the front side of the main body case 1 of the casing portion 10c. The casing portion 10c is provided with a first side surface 24 to which the electric motor 10a is fixed and a suction port 23 provided, and a second side surface 25 facing the first side surface 24 . Furthermore, the casing portion 10c has a tongue-forming surface 27 having a tongue 26 connecting the first side surface 24 and the second side surface 25, and a tongue-facing surface 28 opposing the tongue-forming surface 27. ing. When the blades 10b are rotated by the electric motor 10a, air is sucked into the casing portion 10c through the suction port 23 of the casing portion 10c, and the sucked air is blown out of the casing portion 10c through the discharge port 22. At this time, the pressure inside the casing portion 10c becomes negative.

The discharge product generating section 11 includes discharge product generating means 29 , a first duct 30 , a second duct 31 , and a negative pressure generating hole 32 .

The discharge product generating means 29 is provided between the side surface of the main body case 1 and the casing portion 10c, and includes a device portion 29a and a device case 29b.

The device portion 29a generates discharge products into the air upon application of a voltage. An example of the device portion 29a will be described as electrostatic atomization means. This electrostatic atomization means comprises a discharge electrode (not shown), a counter electrode (not shown) arranged opposite to the discharge electrode, and a high voltage (this implementation) between these counter electrodes and the discharge electrode. a high voltage application section (not shown) that applies a voltage of -5 KV), a Peltier element (not shown) arranged as a cooling section that cools the discharge electrode, and heat dissipation fins that dissipate heat from the Peltier element (not shown). not shown). The Peltier element applies a voltage of about 0.75 V to 2.8 V. In this embodiment, the discharge electrode side is kept at a low temperature and the radiation fin side is kept at a high temperature. Therefore, the passing indoor air is cooled by the discharge electrode portion, and when dew condensation occurs, charged fine particle water is generated. For this reason, the charged fine particle water is then discharged out of the main body case 1 from the outlet 5 together with the dry air, and the hydroxyl radicals in the charged fine particle water react with the odor and oxidize it, thereby decomposing the odor. It is possible. A hydroxyl radical is a radical that reacts with a hydroxyl group (hydroxyl group), and since this radical normally has only one electron that should be rotating on its orbit in pairs, it is very unstable electrically. Because it tries to steal missing electrons from surrounding atoms and molecules, it has a very strong oxidizing power, and this oxidizing action decomposes and removes odors.

The device case 29b is a cubic box provided so as to surround the device portion 29a, and has an opening 16a in part so that the first duct 30 and the second duct 31 can communicate with each other.

The first duct 30 has a cylindrical shape extending parallel to the rotation axis of the blower 10 in the main body case 1, and is provided between the side surface of the main body case 1 and the casing portion 10c. to the discharge product generating means 29 are communicated so that air can pass through.

The second duct 31 has an L-shaped curved cylindrical shape, is provided between the side surface of the main body case 1 and the casing portion 10c, and extends from the discharge product generating means 29 to the negative pressure generating hole 32. They are communicated so that air can pass through them.

The negative pressure generating hole 32 is an opening 16a provided in the casing portion 10c, and communicates the second duct 31 and the casing portion 10c.

The dehumidifying air passage 12 is an air passage that connects the first air inlet 2 of the main body case 1 , the moisture absorbing region 15 a of the dehumidifying rotor 15 , and the blower 10 . Moisture in the air sucked from the first intake port 2 of the main body case 1 is absorbed by the dehumidifying rotor 15 in the moisture absorbing region 15a of the dehumidifying rotor 15 and dehumidified.

The cooling air passage 13 is an air passage that communicates the first intake port 2 of the main body case 1 , the heat exchanger 20 , and the blower 10 . The heat exchanger 20 is cooled by air sucked from the first intake port 2 of the main body case 1 . The air that has passed through the dehumidifying air passage 12 and the cooling air passage 13 is mixed by the blower 10 and sent out of the main body case 1 from the air outlet 5 .

The discharge product generating air passage 14 includes the second intake port 3 of the main body case 1, the first duct 30, the discharge product generating means 29, the second duct 31, and the negative pressure generating hole 32. It is a communicating air path. Due to the operation of the blower 10, the inside of the casing portion 10c becomes negative pressure, so that the force of inducing air through the negative pressure generating hole 32 works in the discharge product generating air passage 14, and the air is drawn from the second air intake port 3. Air outside the main body case 1 enters the first duct 30 , passes through the discharge product generating means 29 , the second duct 31 and the negative pressure generating holes 32 in order, and is blown into the dehumidifying air passage 12 .

A dehumidifying operation in the above configuration will be described. Indoor air is sucked from the first intake port 2 by the blower 10, moisture is absorbed by the moisture absorption region 15a of the dehumidification rotor 15, and the dehumidified air is blown into the room from the blowout port 5 as dry air (dehumidification air passage 12 ). Moisture absorbed by the dehumidifying rotor 15 moves to the moisture desorption area 15b due to the rotation of the dehumidifying rotor 15, and is released to the circulation air passage 18 by the heating of the heat generating portion 19. As shown in FIG. In the circulation air passage 18 , the hot and humid air sent from the moisture desorption area 15 b of the dehumidification rotor 15 is blown to the heat exchanger 20 by the air blow of the circulation fan 21 . In the heat exchanger 20, the circulation air passage 18 and the cooling air passage 13 that is sucked into the main body case 1 by the blower 10 and cools the heat exchanger 20 exchange heat, and the hot and humid air in the circulation air passage 18 is cooled. The water is condensed and collected in the water reservoir 7 as condensed water. The air in the cooling air passage 13 whose temperature has been increased by cooling the heat exchanger 20 is mixed with the air in the dehumidifying air passage 12 by the blower 10 and blown into the room from the outlet 5 . In this way, the indoor air is dehumidified.

Since the blade 10b is a sirocco fan, air is blown from the center of the blade 10b toward the outer peripheral side. Although the details are not known, the wall of the casing portion 10c opposed to the outer periphery of the blades 10b is likely to receive a force that presses the wind in the vertical direction. If it is installed on a wall that is close to the wall, it will be difficult for the air to be attracted due to the force of the wind being pressed vertically.

FIG. 5 is a cross-sectional view showing the peripheral structure of the negative pressure generating hole of the discharge product generator according to the embodiment of the present invention.

As shown in FIGS. 4 and 5, the tongue-forming surface 27 has a downstream portion 27a.

The downstream portion 27a is a part of the tongue-forming surface 27, and is downstream in the blowing direction in the casing portion 10c from the point of contact B on the tangential line A from the center point of the blade to the tongue 26 on the tongue-forming surface 27. is part of Since the downstream portion 27a does not have a wall surface facing the outer periphery of the blade, it is difficult for the wind to press vertically against it.

The negative pressure generating hole 32 is provided at a position where the distance between the negative pressure generating hole 32 and the contact point B is shorter than the distance between the negative pressure generating hole 32 and the outlet in the downstream portion 27a. That is, the negative pressure generating hole 32 is provided upstream of the dehumidifying air passage 12 in the downstream portion 27a. Note that the upstream side of the dehumidifying air passage 12 has a higher wind speed than the downstream side of the dehumidifying air passage 12, and the airflow is less turbulent.

That is, it comprises a body case 1 having a first air intake port 2, a second air intake port 3, and an air outlet, and an air blower 10 provided in the body case 1. The air blower 10 includes a scroll-shaped casing portion 10c. , and an electric motor 10a for rotating the blades provided in the casing part 10c. In addition, a negative pressure generating hole 32 is provided in the tongue-forming surface 27 having the tongue 26 of the casing part 10c, a discharge product generating means 29 is provided outside the casing part 10c, and discharge is generated from the second intake port 3. The object generating means 29, the negative pressure generating hole 32, the inside of the casing portion 10c, forming an air passage leading to the air outlet 5, the negative pressure generating hole 32 is the point of contact B on the tangent line A from the rotation center of the blade to the tongue 26. The negative pressure generating hole 32 and the contact point B are provided further downstream in the air blowing direction in the casing portion 10c, and the distance between the negative pressure generating hole 32 and the blowout port 5 is shorter than the distance between the negative pressure generating hole 32 and the outlet 5 .

In this type of technique for drawing air from the opening 16a using negative pressure, the amount of air drawn increases as the wind speed at the position facing the opening 16a increases.

Since the negative pressure generating hole 32 is provided on the wall surface other than the wall facing the outer circumference of the blade 10b and is provided on the upstream side of the dehumidifying air passage 12, air is smoothly drawn. As a result, a discharge product generator capable of improving the amount of air drawn into the negative pressure generating hole 32 can be obtained.

Moreover, it is desirable that the negative pressure generating hole 32 has a protruding portion 33 at its opening edge.

FIG. 6 is an enlarged perspective view of a protruding portion of the discharge product generator according to the embodiment of the present invention.

As shown in FIG. 6, the projecting portion 33 is a rib provided to surround the opening edge of the negative pressure generating hole 32 and extends vertically upward from the negative pressure generating hole 32 .

That is, the negative pressure generating hole 32 is provided with a protruding portion 33 that protrudes into the casing portion 10 c , and the protruding portion 33 is provided so as to surround the opening edge of the negative pressure generating hole 32 .

On the surface of the tongue forming surface 27, the wind speed tends to decrease due to air viscosity and friction. By providing the protruding portion 33, the position of the opening surface of the discharge product generating air passage 14 facing the dehumidifying air passage 12 is separated from the surface of the tongue forming surface 27, and the air velocity becomes higher. As a result, the amount of air drawn into the negative pressure generating holes 32 increases. As a result, it is possible to provide a discharge product generator capable of further improving the amount of air drawn into the negative pressure generating holes 32 .

The projecting portion 33 also includes a turbulence prevention wall 33a and a turbulence prevention opposing wall 33b.

The turbulence prevention wall 33a is a part of the protruding portion 33 and is a flat plate provided on the front side of the main body case 1 of the protruding portion 33 . The turbulence prevention wall 33a extends in the left-right direction of the main body case 1 so as to be parallel to the plane perpendicular to the rotation axis of the blade, and is downstream of the dehumidification air passage 12 from the center of the turbulence prevention wall 33a. It has a chevron shape with an apex.

The turbulence prevention facing wall 33 b is a part of the projecting portion 33 and is a flat plate provided on the back side of the main body case 1 of the projecting portion 33 . The turbulence prevention facing wall 33b extends in the left-right direction of the main body case 1 so as to be parallel to the plane perpendicular to the rotation axis of the blade, and is located downstream of the dehumidifying air passage 12 from the center of the turbulence prevention facing wall 33b. It has a chevron shape with a vertex on one side. The turbulence prevention wall 33a and the turbulence prevention opposing wall 33b are located opposite to each other and have the same shape.

That is, the protruding portion 33 includes a turbulence prevention wall 33a having a plane parallel to a plane perpendicular to the rotation axis of the blade, and a turbulence prevention opposing wall 33b, and the turbulence prevention wall 33a is a flat plate. The turbulence-preventing facing wall 33b is a flat plate and has a mountain-like shape with a apex at a predetermined position. 33b are opposed to each other.

In the negative pressure generating hole 32 for the purpose of attracting air of this kind, when turbulent flow occurs at the opening surface, the amount of air drawn into the negative pressure generating hole 32 decreases. At the protruding portion 33 in the air flow, if there is a right or sharp corner along the flow, turbulence will occur before and after the corner. Therefore, it is desirable that the portion along the flow of the dehumidifying air passage 12 at the upper end corresponding to the opening surface of the protruding portion 33 is formed in a chevron shape formed only at an obtuse angle or more. As a result, generation of turbulent flow is suppressed at the opening surface of the projecting portion 33, and the amount of air to be drawn can be ensured. As a result, it is possible to provide a discharge product generator capable of further improving the amount of air drawn into the negative pressure generating holes 32 .

In the present embodiment, the discharge product generator is provided with the dehumidifying means 8 in the main body case 1, and the dehumidifying means 8 is provided in the air passage between the first air inlet 2 and the blower 10. , an air cleaning function may be provided in place of the dehumidifying means 8, and the form is not limited.

It is expected to be used as a discharge product generator for the purpose of deodorizing and dehumidifying for households and offices.

REFERENCE SIGNS LIST 1 body case 2 first intake port 3 second intake port 4 operation portion 5 blowout port 6 louver 7 water storage portion 8 dehumidifying means 9 regeneration unit 10 blower 10a electric motor 10b blade 10c casing portion 11 discharge product generating portion 12 dehumidified air Path 13 cooling air passage 14 discharge product generating air passage 15 dehumidifying rotor 15a moisture absorption area 15b moisture desorption area 15c tooth 16 support frame 16a opening 17 motor 17a gear 18 circulation air passage 19 heat generating part 20 heat exchanger 21 circulation blower 21a circulation motor 21b impeller 22 discharge port 23 suction port 24 first side surface 25 second side surface 26 tongue 27 tongue forming surface 27a downstream portion 28 tongue opposing surface 29 discharge product generating means 29a device portion 29b device case 30 second First duct 31 Second duct 32 Negative pressure generating hole 33 Protruding portion 33a Turbulence prevention wall 33b Turbulence prevention opposing wall A Tangent line B Contact point

Claims (4)

a body case having a first intake port, a second intake port, and an outlet;
and a blower provided in the main body case,
The blower has a scroll-shaped casing,
vanes provided within the casing;
an electric motor for rotating the blades,
The blower is
The air sucked into the main body case from the first intake port is blown to the blowout port, and a negative pressure generating hole is provided on the tongue-forming surface of the casing portion having the tongue,
A discharge product generating means is provided outside the casing,
forming an air passage leading from the second air inlet to the discharge product generating means, the negative pressure generating hole, the inside of the casing portion, and the air outlet;
The negative pressure generating hole is provided on the downstream side in the air blowing direction inside the casing from the point of contact on the tangential line from the rotation center of the blade to the tongue,
A discharge product generator, wherein the distance between the negative pressure generating hole and the contact is shorter than the distance between the negative pressure generating hole and the outlet. In the negative pressure generating hole,
A protruding portion protruding into the casing portion,
2. The discharge product generating device according to claim 1, wherein the projecting portion is provided so as to surround an opening edge of the negative pressure generating hole. The projecting portion includes a turbulence prevention wall having a surface parallel to a surface perpendicular to the rotation axis of the blade, and a turbulence prevention opposing wall,
The turbulence prevention wall is a flat plate and has a mountain shape with an apex at a predetermined position,
The turbulence prevention facing wall is a flat plate and has a mountain shape with a peak at a predetermined position,
3. The discharge product generator according to claim 2, wherein the turbulence prevention wall and the turbulence prevention facing wall face each other. 4. The discharge product generation according to any one of claims 1 to 3, wherein dehumidifying means is provided in said main body case, and said dehumidifying means is provided in an air passage between said first intake port and said blower. Device.

Images