TWI641785B - Air supply device - Google Patents

Abstract

The utility model comprises: a main body (1), which has a blower and an air cleaning device inside, and is embedded in a ceiling or a wall surface of the room; and a decorative lattice plate (6) having a flat shape in front, is disposed in the interior of the body (1) And the air blower that draws air from the ceiling or the wall and the decorative grid plate (6), and then blows air through the air cleaning device to the room, and the body (1) is surrounded by the air cleaning device. a rib-shaped first projection (1g) provided; the decorative lattice plate (6) has a second projection (6e) having a rib shape facing the first projection (1g) with a space therebetween; the first projection (1g) The gap (17) between the second protrusion (6e) and the second protrusion (6e) is serpentine.

Description

Air supply device

The present invention relates to an air blowing device in which a main body is buried in a ceiling surface or a wall surface, and a decorative lattice plate portion is disposed in a room.

In recent years, air cleaning devices have been widely used in order to maintain the air in a building in a clean state. An electric air cleaning device which is one of the forms of the air cleaning device generally includes a freeing portion that charges a dust that is a floating particle in the air by a corona discharge, and a collector that is made by a Coulomb force The charged dust adheres to the dust collecting portion of the dust collecting plate. Patent Document 1 discloses an air cleaning device that embeds a body in a ceiling and arranges only a decorative lattice plate portion in a room.

[Prior patent documents]

[Patent Literature]

[Patent Document 1] Japanese Patent No. 4842402

However, since the space in the ceiling is narrow depending on the building, the invention disclosed in Patent Document 1 is required to be as small as possible in order to be installed in many buildings. In order to make the body as small as possible, it is necessary to shorten the distance between the discharge portion and the opening of the air passage, but the foreign matter is inserted from the outside to the high voltage to be applied. When the vicinity of the discharge portion is pressed, it may cause a malfunction. Therefore, it is necessary to narrow the air passage opening portion so that foreign matter cannot be inserted from the outside, but when the air passage opening portion is narrowed, the pressure loss is increased. Therefore, as long as the high-output air blowing device is not used, it is difficult to achieve the miniaturization of the body. Moreover, when the air passage opening portion is narrowed, there is a problem that noise is increased.

The present invention has been made in view of the above, and it is an object of the invention to provide an air blowing device that suppresses the enlargement of the main body and provides low noise while providing an air cleaning device.

In order to solve the above problems and achieve the object, the present invention comprises: a main body having a blower and an air cleaning device inside, and being embedded in a ceiling or a wall surface of the room; and a decorative lattice plate having a flat shape in front, being provided The indoor side of the main body; and the air blower that sucks the air from the ceiling or the wall and the decorative lattice plate by the fan, and then blows out the air that has passed through the air cleaning device, and the system has the air cleaning device installed around the air cleaning device. a rib-shaped first projection; the decorative lattice plate has a second projection that faces the first projection at a distance from the first projection; and the first projection and the second projection are connected to the concave portion in the longitudinal direction a shape in which a gap between the first protrusion and the second protrusion is a portion of the first protrusion and a concave portion of the second protrusion, and a recess of the first protrusion and the second protrusion The portions of the convex portion that are opposed to each other alternately appear to be formed into a meandering shape.

The air blowing device of the present invention has an effect of suppressing the enlargement of the main body and providing a low noise effect by providing the air cleaning device.

1‧‧‧ Ontology

1a‧‧‧Flange

1b‧‧‧fixed screw mounting

1d‧‧‧Axis

1e, 6b‧‧‧ claws

1f, 4c, 6c‧‧‧Inhalation blown out ribs

1g, 6e‧‧ ‧ prominence

2‧‧‧Multi-wing blower

3‧‧‧Fan

4‧‧‧Fan casing

4a, 13a‧‧‧Fixed Department

4b‧‧‧ claw hook

4d‧‧‧Inhalation

5‧‧‧High voltage unit

6‧‧‧Decorative plaid

6a‧‧‧ bearing

7‧‧‧Motor

8‧‧‧ terminal block

9‧‧‧Circuit storage box

10‧‧‧Control circuit

11‧‧‧Discharge electrode

12‧‧‧relative electrode

13‧‧‧Dust filter

13b‧‧‧ claws

14‧‧‧Inhalation side

15‧‧‧ blowing side

16‧‧‧Installation surface

17‧‧‧ gap

18‧‧‧Outer profile

Fig. 1 is a perspective view of a blower according to a first embodiment of the present invention.

Fig. 2 is a cross-sectional view showing a state in which the air blowing device of the first embodiment is mounted.

Fig. 3 is a rear elevational view of the air blowing device of the first embodiment.

Fig. 4 is a front view showing a state in which the decorative lattice plate has been removed from the air blowing device of the first embodiment.

Fig. 5 is a side view of the air blowing device of the first embodiment.

Fig. 6 is a perspective view showing a state in which the decorative lattice plate has been removed from the air blowing device of the first embodiment.

Fig. 7 is a side view showing the blowing side of the air blowing device of the first embodiment.

Fig. 8 is a perspective view showing a fan casing of the air blowing device of the first embodiment.

Fig. 9 is a perspective view showing a dust removing filter of the air blowing device of the first embodiment.

Fig. 10 is a perspective view showing a decorative lattice plate of the air blowing device of the first embodiment.

Fig. 11 is a perspective view showing a state in which the decorative lattice plate is opened in the air blowing device of the first embodiment.

Fig. 12 is a schematic view showing a projection of a blowing portion of the air blowing device of the first embodiment.

Fig. 13 is a schematic view showing a projection of a blowing portion of the air blowing device of the first embodiment.

Fig. 14 is a perspective view showing a high voltage unit of the air blowing device of the first embodiment.

Fig. 15 is a perspective view showing the internal structure of a high voltage unit of the air blowing device of the first embodiment.

Fig. 16 is a circuit diagram of a high voltage unit of the first embodiment.

Fig. 17 is a view showing a modification of the air blowing device of the first embodiment.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Further, the present invention is not limited by the embodiment.

First embodiment

Fig. 1 is a perspective view of a blower according to a first embodiment of the present invention. Fig. 2 is a cross-sectional view showing a state in which the air blowing device of the first embodiment is mounted. Fig. 3 is a rear elevational view of the air blowing device of the first embodiment. Fig. 4 is a front view showing a state in which the decorative lattice plate has been removed from the air blowing device of the first embodiment. Fig. 5 is a side view of the air blowing device of the first embodiment. Fig. 6 is a perspective view showing a state in which the decorative lattice plate has been removed from the air blowing device of the first embodiment. Fig. 7 is a side view showing the blowing side of the air blowing device of the first embodiment. The air blowing device according to the first embodiment includes a resin main body 1 embedded in a ceiling or a wall surface, a centrifugal multi-blade air blower 2, a fan casing 4 accommodating the multi-blade air blower 2, and a multi-blade air blower 2; The high voltage unit 5 of the air cleaning device on the downstream side and the decorative grid plate 6.

The multi-blade blower 2 includes a motor 7, and a fan 3 that is interposed and coupled to a drive shaft of the motor 7. In addition, instead of the multi-blade blower 2, an axial flow blower can be used. On the back surface of the main body 1, a terminal housing 8 that can be pulled out of the main body 1 and a circuit housing case 9 that houses the control circuit 10 are provided. The terminal block 8 can be easily connected to an external power supply wire by being pulled out to the outside of the body 1.

By the decorative lattice plate 6, the air sucked into the fan casing 4 from the suction port 4d of the fan casing 4 is fed by the multi-blade blower 2, along the inner wall of the body 1, through the post-flow high voltage unit 5, from the decorative lattice Board 6 is blown indoors Out.

As shown in Figs. 1 to 4, the main body 1 has a box shape that is open on one side, and the motor 7 is placed on a surface opposite to the surface of the opening. Further, the surface on which the motor 7 is placed is placed on the ceiling to be the top surface. The body 1 has a square flange 1a projecting in a direction parallel to the mounting surface 16 at the front. The air blowing device is fixed to the mounting surface 16 by a fixing screw at four or more positions by the fixing screw mounting portion 1b provided at 8 of the flange 1a. In addition, wood screws can be used for fixing screws, but it is not limited to this.

The fan casing 4 mainly houses the multi-blade air blower 2, and the lower surface is opened to form the suction port 4d. As shown in FIGS. 4 and 6, the dust filter 13 is provided on the upstream side of the suction port 4d. Fig. 8 is a perspective view showing a fan casing of the air blowing device of the first embodiment. Fig. 9 is a perspective view showing a dust removing filter of the air blowing device of the first embodiment. The fan casing 4 includes a fixing portion 4a for fixing the dust removing filter 13 and a claw hook portion 4b. The dust removing filter 13 is fixed to the fan casing 4 by fixing the fixing portion 13a of the dust removing filter 13 to the fixing portion 4a and engaging the claw portion 13b of the dust removing filter 13 with the claw hook portion 4b.

Fig. 10 is a perspective view showing a decorative lattice plate of the air blowing device of the first embodiment. The decorative lattice plate 6 is mainly intended to improve the design of the air blowing device and prevent the foreign matter from entering the fan 3 from entering. Decorative lattice plate 6-piece resin molded body. In the first embodiment, in consideration of design, the decorative lattice plate 6 has a flat front shape. By flattening the front surface of the decorative lattice panel 6, as shown in Fig. 5, air can be sucked or blown in a direction parallel to the ceiling or wall mounting surface 16.

The decorative lattice plate 6 is respectively connected to the body 1 by the bearing 6a and the claw 6b The shaft 1d and the claw 1e are engaged and fixed. Fig. 11 is a perspective view showing a state in which the decorative lattice plate is opened in the air blowing device of the first embodiment. By removing the claws 6b of the decorative lattice plate 6 from the claws 1e of the main body 1, as shown in Fig. 11, the decorative lattice plate 6 is opened and closed in the rotational direction about the bearing 6a and the shaft 1d.

As shown in Fig. 10, the rib-shaped projections 6e of the second projections are provided on the blowing portion of the decorative lattice plate 6. The projection 6e has a shape in which the longitudinal direction convex portion is connected to the concave portion. Further, as shown in Fig. 6, the main body 1 is also provided with a rib-shaped projection 1g of the first projection in the blowing portion. The protrusion 1g has a shape in which the longitudinal direction convex portion is connected to the concave portion. The protrusion 1g is provided around the high voltage unit 5. The projections 6e and the projections 1g have the same shape and the same size, and the distance between the projections and the recesses is also the same. As shown in Fig. 7, the convex portion of the projection 1g and the concave portion of the projection 6e are opposed to each other along the protruding direction of the projection 1g and the projection 6e, and the projection of the projection 1g and the projection of the projection 6e are along the projection direction of the projection 1g and the projection 6e. Relative. Therefore, the gap 17 between the protrusion 1g and the protrusion 6e has a meandering shape. Here, the gap shape of the meandering shape means that when viewed in the longitudinal direction, one of the two members facing each other across the gap is convex and the other is concave, and one of the two is concave and the other is convex. Partially appears interactively. In other words, in the first embodiment, the gap 17 is a meandering shape, and means that the gap between the convex portion of the projection 1g and the concave portion of the projection 6e and the concave portion and the projection 6e of the projection 1g are observed when the gap 17 is observed along the longitudinal direction. The portions of the convex portion that are opposite to each other appear alternately. Examples of the meandering shape include a sine wave shape, a triangular wave shape, a pulse wave shape, and a meander shape, but are not limited to these shapes.

The width of the gap 17 is substantially maintained at a constant value. The gap 17 of the blow-out portion becomes a width in which foreign matter is not inserted. The gap 17 is set to be proportional to electricity The test finger used in the protection test of the self-charging section specified in the Gas Safety Law is smaller than 12 mm in diameter to prevent fingers from being inserted into the gap 17. In addition, when the gap 17 is set to less than 12 mm, it corresponds to the second level of protection level of the IEC 60529, which is also called the International Electrotechnical Commission (IEC). The width of the gap 17 is not limited to less than 12 mm.

Fig. 12 is a schematic view showing a projection of a blowing portion of the air blowing device of the first embodiment. The protrusion 1g and the protrusion 6e are sinusoidal waveforms as shown in Fig. 12. Fig. 13 is a schematic view showing a projection of a blowing portion of the air blowing device of the first embodiment. As shown in Fig. 13, the protrusion 1g and the protrusion 6e may be triangular waveforms.

Since the air blowing device of the first embodiment is configured to be sucked from one half of the decorative lattice plate 6 and blown from the other half surface, it is necessary to separate the suction side 14 from the blowing side 15. As shown in Fig. 10, the decorative lattice plate 6 is provided with a suction blowout rib 6c on the back surface. Further, as shown in Fig. 6, the main body 1 is provided with suction suction ribs 1f at two places. As shown in Fig. 8, the suction blow-off ribs 4c that separate the suction side 14 from the blow-out side 15 are provided in the fan casing 4. The suction and blowing directions of the air blowing means are indicated by arrows in Fig. 6, which are three directions.

Fig. 14 is a perspective view showing a high voltage unit of the air blowing device of the first embodiment. Fig. 15 is a perspective view showing the internal structure of a high voltage unit of the air blowing device of the first embodiment. Fig. 16 is a circuit diagram of a high voltage unit of the first embodiment. The high voltage unit 5 has a discharge electrode 11, a counter electrode 12, and an outer periphery 18. The outer profile is made of 18 resin. The discharge electrode 11 is linear and has There are strong conductors. The opposing electrode 12 is an electrical conductor. The material of the discharge electrode 11 can be exemplified by tungsten, but is not limited thereto. The material of the opposing electrode 12 can be exemplified by stainless steel, but is not limited thereto. The discharge electrode 11 and the counter electrode 12 are made of a material that does not rust due to water in order to be water-washable when dust adheres. As shown in Fig. 16, the high voltage unit 5 has a structure in which the opposing electrode 12 is disposed with the discharge electrode 11 interposed therebetween. A high voltage is applied between the discharge electrode 11 on the voltage side and the opposite electrode 12 on the ground side to generate a discharge and an electric field space.

Fig. 17 is a view showing a modification of the air blowing device of the first embodiment. In the air blowing device of the first embodiment, the high voltage unit 5 is disposed on the downstream side of the multi-blade air blower 2, and the wave-shaped projection 1g is provided in the blowing portion of the main body 1, and the corrugated projection 6e is placed on the decorative lattice. The blowing portion of the plate 6, but as shown in Fig. 17, when the multi-blade air blower 2 is disposed such that the drive shaft of the motor 7 is parallel to the mounting surface 16, the high voltage unit 5 is disposed in front of the multi-blade air blower 2. The flow side is advantageous in terms of space efficiency. When the high voltage unit 5 is disposed on the front flow side of the multi-blade air blower 2, the protrusion 1g may be provided on the suction side of the main body 1, and the protrusion 6e may be provided on the suction side of the decorative lattice plate 6.

In the air blowing device of the first embodiment, since the gap 17 has a meandering shape, the area of the gap 17 per unit area can be made larger than when the gap is linear. Therefore, if the sizes of the bodies 1 are the same, the area occupied by the gaps 17 is larger than the case where the gaps are linear. Therefore, the air blowing device of the first embodiment can suppress the enlargement of the main body 1 and the low noise by the high voltage unit 5 including the air cleaning device.

The configuration shown in the above embodiment is an example of the present invention, and may be combined with other well-known techniques, and a part of the configuration may be omitted or changed without departing from the gist of the present invention.

Claims (2)

An air blowing device includes: a body having a blower and an air cleaning device inside, and is embedded in a ceiling or a wall of the room; and a decorative lattice plate disposed on an indoor side of the body; and the blower is used to a ceiling or an air blower that draws in the air between the wall and the decorative lattice plate, and then blows air that has passed through the air cleaning device, wherein the system is provided around the air cleaning device. a rib-shaped first protrusion; the decorative lattice plate has a second protrusion that faces the rib shape at intervals with the first protrusion; and the first protrusion and the second protrusion are convex portions in the longitudinal direction a shape in which the concave portions are connected to each other, and a gap between the first projection and the second projection is a portion of the convex portion of the first projection facing the concave portion of the second projection and a concave portion of the first projection The convex portion of the second protrusion is alternately formed with respect to the meandering portion, and is formed into a meandering shape. The air blowing device of claim 1, wherein the gap between the first protrusion and the second protrusion is in accordance with the protection level of the IEC 60529 of the International Electrotechnical Commission.