CN104067061B - Ion generating device - Google Patents

Abstract

The ion generating device is provided with a top plate (6) and a motor (5) for holding a motor (5) for rotating a centrifugal fan (4) on a top surface (3) of a main body (1). In addition, the ion generating device is provided with a centrifugal fan (4) connected to the motor (5) under the top plate (6), and a fan with a suction port (16) and an air outlet (17) is provided on the lower surface of the main body (1). The grille (18), the suction port (16) and the blowing port (17) are formed in concentric circles. An air outlet (17) is arranged on the outer peripheral side of the grille (18), and an air inlet (16) is arranged on the inner peripheral side, and the angle formed between the air outlet (17) and the ceiling surface (41) is an acute angle.

Description

ion generator

technical field

The present invention relates to an ion generating device.

Background technique

Conventionally, an ion generator for sterilizing and deodorizing an indoor space blows out ions generated by a negative ion generating mechanism along with airflow generated by a fan (for example, refer to Patent Document 1).

Next, it demonstrates with reference to FIG. 15 which is a cross-sectional view which shows the state in which the conventional ion generating apparatus was attached to the ceiling. As shown in FIG. 15 , the ion generator 301 houses a negative ion generator 303 , a fan 304 , a DC conversion substrate 305 , and a high voltage generation substrate 306 in a substantially cylindrical case 302 . In addition, in the ion generator 301 , a cap 307 is attached to the outer periphery of the lower part of the housing 302 . Furthermore, a fan air introduction opening 309 composed of a plurality of slits is provided at a position facing the air intake port 308 of the fan 304 on the outer peripheral surface of the casing 302 .

According to the above structure, the negative ions generated by the negative ion generating mechanism 303 are caused to flow out to the lower part of the housing 302 along with the airflow generated by the fan 304 .

In such an ion generator installed in a part of a house, it is desirable to provide the air supply port and the exhaust port on the same surface and make the exposed part thinner in order to place emphasis on design. However, if the air supply port and the exhaust port are provided on the same surface, a short circuit (short circuit) may occur, and ions cannot diffuse efficiently throughout the room.

Moreover, FIG. 16 is a perspective view which shows the different structure of the conventional ion generator disclosed by patent document 2. As shown in FIG. As shown in FIG. 16 , the ion generator has: a main body 401 , a grille 402 , a control circuit box 405 , an electrostatic atomization device 406 and an ion discharge port 407 . Here, the control circuit box 405 is disposed on the upper surface of the main body 401 . The electrostatic atomization device 406 is disposed inside the main body 401 to generate ions. Ions generated by the electrostatic atomization device 406 are discharged from the ion discharge port 407 .

The ions discharged from the ion discharge port 407 are mixed with the air before being sucked in from the suction port 403 and blown out from the blower port 404 , and blown out from the blower port 404 as air containing ions.

In this conventional ion generating device, air leaks from the gap between the ceiling and the grille, and there is a technical problem that ions cannot be reliably mixed into the supply air.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2006-230706

Patent Document 2: Japanese Patent Laid-Open No. 2011-253780

Contents of the invention

In the ion generating device of the present invention, the main body is buried behind the ceiling, and ions generated by the electrostatic atomization device are blown out from the ceiling surface. Also, the cylindrical main body has a flange at a lower portion. In addition, a top plate holding a motor for rotating the centrifugal fan and a motor are provided on the top surface of the main body. A centrifugal fan connected with the motor is arranged under the top plate. In addition, a grill having a suction port and a blowing port is provided on the lower surface of the main body. Furthermore, the suction port and the blowing port are formed concentrically, the blowing port is provided on the outer peripheral side of the grille, and the suction port is provided on the inner peripheral side. In addition, the angle formed by the air outlet and the ceiling surface is an acute angle.

In such an ion generator, the air outlet is provided on the outer peripheral side of the grille, and the angle between the air outlet and the ceiling surface is an acute angle, and the air is blown out to the outside, and the air is sucked in from the inner peripheral side of the grille. Therefore, blowing and suction are not short-circuited.

In addition, in the ion generator of the present invention, the main body is buried behind the ceiling, and the cylindrical main body has a flange at the lower part. A top plate holding a motor for rotating the centrifugal fan and a motor are provided on the top surface of the main body. In addition, the ion generator has a grill which is fitted with a flange and has a suction port and a blowout port. Furthermore, an electrostatic atomization device is provided inside the main body, and ions generated by the electrostatic atomization device are mixed with air sucked in from the suction port by the centrifugal fan and discharged from the blower port. Furthermore, the circumferential flange-side protrusions provided on the flange and the circumferential grill-side protrusions provided on the grille are arranged so as not to overlap each other.

In such an ion generator, the flange and the grill are fitted in close contact (close contact) by the flange-side protrusions and the grill-side protrusions. Therefore, the air sucked in from the suction port by the centrifugal fan is discharged from the blower port without leaking through the gap between the ceiling and the grille. As a result, it is possible to reliably mix ions into the supply air.

Description of drawings

Fig. 1 is a cross-sectional view of a state in which an ion generator according to Embodiment 1 of the present invention is attached to a ceiling.

Fig. 2 is a perspective view showing the inside of the ion generator.

Fig. 3 is an exploded perspective view of the ion generator.

Fig. 4A is a side view of the ion generator.

Fig. 4B is a sectional view taken along line 4B-4B of Fig. 4A.

5 is a cross-sectional view of a state where the ion generator according to Embodiment 1 of the present invention is attached to a ceiling.

Fig. 6 is a cross-sectional view of the ion generator with the grill removed.

Fig. 7 is an enlarged cross-sectional view of the ion generator with the grill removed.

Fig. 8 is a perspective view of a different form of the ion generator.

9 is a cross-sectional view showing the structure of an ion generator according to Embodiment 2 of the present invention.

Fig. 10 is an upper exploded view showing the structure of the ion generator.

Fig. 11 is a lower exploded view showing the structure of the ion generator.

Fig. 12 is a perspective view showing a flange of the ion generator.

Fig. 13 is a perspective view showing a grille of the ion generator.

Fig. 14 is a detailed cross-sectional view of flange-side protrusions and grill-side protrusions of the ion generator.

Fig. 15 is a cross-sectional view showing a state in which a conventional ion generator is attached to a ceiling.

Fig. 16 is a perspective view showing a different configuration of the ion generator.

detailed description

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

(Embodiment 1)

Fig. 1 is a cross-sectional view of a state in which an ion generator according to Embodiment 1 of the present invention is attached to a ceiling. As shown in FIG. 1 , in the ion generator according to Embodiment 1 of the present invention, the main body 1 is embedded in the ceiling back 40 , and ions 42 are blown out from the ceiling surface 41 . The main body 1 is cylindrical. In addition, a flange 2 is provided on the lower portion of the main body 1 . A turbofan 4 as a centrifugal fan and a motor 5 for rotating the turbofan 4 are provided on the top surface 3 of the main body 1 . In addition, a top plate 6 holding the motor 5 is provided on the top surface 3 . A turbofan 4 connected to a motor 5 is provided below the top plate 6 .

2 is a perspective view showing the inside of the ion generator according to Embodiment 1 of the present invention. As shown in FIG. 2 , fixing parts 7 are provided on the left and right sides of the main body 1 , that is, side surfaces. The fixing part 7 is comprised of two parts of a fixing part 7a and a base part 7b. The base part 7b rotates around the contact surface with the fixed part 7a. As shown in Figures 1 and 2, a fixing nut 11 is provided at the front end of the part-specific bolt 10 passing through the hole 8 of the main body 1 and the elongated hole 9 of the fixing part 7a. When the part-dedicated bolt 10 is rotated, the fixing nut 11 that restricts the movement (change) of the rotation direction by the horizontal U-shaped wall 12 provided on the main body 1 moves up and down. Then, the fixing part 7 moves downward, the ceiling is sandwiched between the flange 2 and the fixing part 7, and the main body 1 is fixed to the ceiling.

Fig. 3 is an exploded perspective view of the ion generator according to Embodiment 1 of the present invention. The main body 1 is attached to the ceiling by inserting and fastening screws into the attachment holes 13 provided in the flange 2 .

In addition, as shown in FIG. 1 , a motor flange 14 is provided at the center of the motor 5 in the axial direction. The motor 5 is screwed through the motor flange 14 from above the top plate 6 . The turbofan 4 has a shape that covers the motor 5 from the surface where the motor 5 is attached to the top plate 6 to the shaft 15 .

In addition, as shown in FIG. 3 , the ion generator is provided with a grille 18 having a suction port 16 and a blowout port 17 on the lower surface of the main body 1 . The suction port 16 and the blowing port 17 are formed concentrically. The air outlet 17 is provided on the outer peripheral side of the grille 18, and the suction port 16 is provided on the inner peripheral side. In addition, as shown in FIG. 1 , the angle formed by the air outlet 17 and the ceiling surface 41 is an acute angle α.

In addition, room air is sucked into the turbofan 4 through a cylindrical path 20 from the suction port 16 to an orifice 19 provided above the suction port 16 inside the main body 1 . That is, the cylindrical path 20 is an air supply path from the suction port 16 to the hole portion 19 . And, the sucked indoor air is blown out to the whole circumference of the turbo fan 4 . In addition, an air flow path 21 for guiding indoor air blown out from the turbo fan 4 to the air outlet 17 is provided. That is, the air flow path 21 is an exhaust path from the turbo fan 4 to the air outlet 17 .

4A is a side view of the ion generator according to Embodiment 1 of the present invention, and FIG. 4B is a 4B-4B cross-sectional view of FIG. 4A . As shown in FIG. 1 and FIG. 4B , the cross-sectional area 21a of the exhaust path parallel to the ceiling surface 41 of the exhaust path is smaller than the cross-sectional area 20a of the air supply path parallel to the ceiling surface 41 of the air supply path.

In addition, as shown in FIG. 3 , an electrostatic atomization device 22 is provided on the outer peripheral portion of the cylindrical path 20 . The electrostatic atomization device 22 is covered with a protective cover 23 . In addition, the electrostatic atomization device 22 is arranged outside the cylindrical path 20 and the air flow path 21 . Below the protective cover 23 , there is an ion discharge port 24 for discharging ions generated from the electrostatic atomization device 22 . The ion discharge port 24 is provided near the blowing port 17 . In addition, the size of the ion discharge port 24 is about 5 millimeters in diameter, which is a size that the user's fingers cannot enter. In addition, arrows in FIG. 1 indicate the flow of air.

5 is a cross-sectional view of a state where the ion generator according to Embodiment 1 of the present invention is attached to a ceiling. As shown in FIGS. 2 and 5 , a protruding portion 26 is provided on the rising portion 25 of the flange 2 on the inside of the outer shape of the grille 18 . Moreover, the engaging part 27 which engages with the protrusion part 26 is provided in the grille 18 attached to the main body 1. As shown in FIG.

In addition, no load is normally applied to the protruding portion 26 and the engaging portion 27 . As shown in FIG. 2 , claws 29 are provided on the grill 18 and fitting portions 30 are provided on the flange 2 as means for fixing the flange 2 and the grill 18 . The flange 2 and the grill 18 are supported by fitting.

In addition, as shown in FIG. 5 , a control circuit box 32 containing the control motor 5 and the substrate 31 of the electrostatic atomization device 22 is provided on the side of the top plate 6 and the motor 5 that contact the outer shell of the main body 1 .

In the above structure, as shown in FIG. 1 , viewed from the upstream along the flow of air, the turbofan 4 sucks the indoor air from the suction port 16 in the center of the grille 18 , and the turbofan 4 sends out the air evenly in the centrifugal direction. Then, the uniformly sent air turns downward along the inner wall of the main body 1 and is uniformly blown out from the outlet 17 of the grille 18 through the air flow path 21 . In addition, ions are generated from the electrostatic atomization device 22 shown in FIG. 3 , and the ions are released from the ion discharge port 24 provided near the blower port 17 . The ions are uniformly diffused (spread over) the entire room along with the flow of the wind blown out from the outlet 17 shown in FIG. 1 .

As described above, air outlet 17 is provided on the outer peripheral side of grille 18 , the angle formed between air outlet 17 and ceiling surface 41 is an acute angle, and air is sucked in from the inner peripheral side of grille 18 . Therefore, blowing out and sucking in will not be short-circuited. As a result, air containing ions is efficiently diffused (spread over) the entire room.

In addition, as shown in FIG. 4B , the cross-sectional area of the air flow path 21 serving as the exhaust path is small, so the surface wind speed becomes large. Therefore, it becomes difficult for the air blown out from the air outlet 17 to be sucked into the air inlet 16 . As a result, short-circuiting of ions discharged from the blower port 17 is reduced.

In addition, by using the turbofan 4, no casing is required. As a result, the outer shape of the main body 1 becomes smaller, and the hole for mounting to the ceiling becomes smaller, which facilitates construction.

In addition, as shown in FIG. 1 , the turbofan 4 covers the motor 5 , and the motor 5 is attached to the surface of the top plate 6 having the recessed portion. Therefore, the height of the main body 1 becomes low, and the main body 1 can be installed even when the ceiling back 40 is low.

6 is a cross-sectional view of the ion generator according to Embodiment 1 of the present invention with the grill removed, and FIG. 7 is an enlarged cross-sectional view of the ion generator with the grill removed. As shown in FIGS. 6 and 7 , even if the claw 29 and fitting portion 30 engaging the grille 18 and the flange 2 are damaged, the protrusion 26 of the main body 1 and the engaging portion 27 of the grille are engaged. Therefore, the grill 18 does not fall down. In addition, design improves, too.

In addition, the gap 28 between the protrusion 26 and the ceiling surface 41 exceeds the sum of the engaging portion distance 27 a which is the distance from the engaging portion 27 to the outer contour of the grill 18 and the outer thickness 18 a of the grill 18 . Therefore, even if the claw 29 shown in FIG. 6 is damaged and the grill 18 tends to fall strongly, the grill 18 is held securely without flying forward.

8 is a perspective view of a different form of the ion generator according to Embodiment 1 of the present invention. As shown in FIG. 8 , an illuminating device 33 is provided inside the suction port 16 .

According to the above structure, since the ion generator has the lighting device 33, the ceiling is effectively used, and the design property with lighting improves.

(Embodiment 2)

9 is a cross-sectional view showing the structure of an ion generator according to Embodiment 2 of the present invention. As shown in FIG. 9 , the main body 101 of the ion generator is buried in the back 140 of the ceiling. In addition, the main body 101 is cylindrical and has a flange 102 at the lower portion. A motor 105 and a top plate 106 are provided on the uppermost top surface 103 of the main body 101 . The top plate 106 holds a motor 105 that rotates a turbo fan 104 that is a centrifugal fan. A turbofan 104 connected to a motor 105 is provided below the top plate 106 .

In addition, the motor 105 may be direct current (DC), alternating current (AC), or both.

Fig. 10 is an upper exploded view showing the configuration of an ion generator according to Embodiment 2 of the present invention. As shown in FIG. 10 , fixing parts 107 are provided on the left and right sides of the main body 101 , that is, side surfaces. The fixing part 107 is composed of two parts, a plate-shaped fixing part 107a and a base part 107b. The base part 107b is rotated so that the ceiling 150 shown in FIG. 9 is parallel to the base part 107b around the contact surface 134 in contact with the fixed part 107a. In addition, a fixing nut 111 is provided at the forward end of the part-specific bolt 110 penetrating through the hole 108 shown in FIG. 9 shown in FIG.

As shown in Fig. 9 and Fig. 10, by the rotation of the special bolt 110 for parts, the fixing nut 111 that restricts the movement (change) of the rotation direction by the U-shaped wall 112 that is provided on the side surface of the main body 101 to make the ceiling 150 side concave, Moving up and down. Then, the fixing part 107 moves downward, the ceiling 150 is sandwiched between the flange 102 and the fixing part 107 , and the main body 101 is fixed to the ceiling 150 .

Moreover, the main body 101 is attached to the ceiling 150 by inserting and fastening the screw into the attachment hole 113 provided in the flange 102 .

In addition, as shown in FIG. 10 , a motor flange 114 is provided at the center of the motor 105 in the axial direction. The motor 105 is screwed through the motor flange 114 from above the top plate 106 . At the center of the top plate 106 on which the motor 105 is mounted, there is a recessed portion 115 lower than the top surface 103 of the main body 101 , and the top plate 106 is attached to the surface of the recessed portion 115 . As shown in FIG. 9 , the turbofan 104 hides the motor 105 from the surface where the motor 105 is mounted on the top plate 106 to the shaft 116 .

Fig. 11 is a lower exploded view showing the configuration of an ion generator according to Embodiment 2 of the present invention. As shown in FIG. 11 , at the center of the lower end of the main body 101 is provided a grille 119 having a suction port 117 and an air outlet 118 around the suction port 117 . Furthermore, the grill 119 is fitted and attached to the flange 102 shown in FIG. 10 .

In addition, as shown in FIG. 9 , indoor air is sucked into the turbofan 104 through a cylindrical path 121 from the suction port 117 at the lower end of the main body 101 to the hole 120 provided above the suction port 117 inside the main body 101 . That is, the cylindrical path 121 is an air supply path from the suction port 117 to the hole portion 120 . And, the sucked indoor air is blown out to the whole circumference of turbo fan 104 . In addition, an air flow path 122 for guiding indoor air blown out from the turbo fan 104 to the outlet 118 is provided. That is, the air flow path 122 is an exhaust path from the turbo fan 104 to the air outlet 118 .

In addition, as shown in FIG. 11 , a partition plate 123 that separates the main body 101 from the top surface 103 shown in FIG. 10 in parallel, and an electrostatic atomizing device 124 and Operate the action light 125 . The electrostatic atomization device 124 and the running light 125 are completely covered by the protective cover 126, and the user's hands cannot touch them.

An ion discharge port 127 for discharging ions generated from the electrostatic atomization device 124 is provided below the protective cover 126 . The ion discharge port 127 is provided near the blowing port 118 . Furthermore, in the ion generator shown in FIG. 9 , ions 142 generated by electrostatic atomization device 124 are mixed with air 143 sucked in from suction port 117 by turbo fan 104 and blown out from blower port 118 . The size of the ion discharge port 127 shown in FIG. 11 is about 5 millimeters in diameter, which is a size that the user's fingers cannot enter.

In addition, as shown in FIG. 11 , a light tube 128 through which the light of the operation lamp 125 passes is provided under the protective cover 126 . The light tube 128 transmits the light of the operation light 125 to the grille 119 and makes the light appear on the surface of the grille 119 .

Moreover, the control circuit box 129 accommodates the board|substrate of the control motor 105 (refer FIG. 9) and the electrostatic atomization device 124. The control circuit box 129 is provided above the top plate 106 and the motor 105 of the outer shell of the main body 101 shown in FIG. 10 . The width of the control circuit box 129 is smaller than the diameter of the main body 101 . In addition, the control circuit box 129 and the center axis of the main body 101 are shifted and arranged.

12 is a perspective view showing a flange of the ion generator according to Embodiment 2 of the present invention. As shown in FIG. 12 , on the lower surface side of the flange 102 , a plurality of flange-side protrusions 130 are circumferentially attached so as to be concentric with the cylindrical main body 101 .

13 is a perspective view showing a grille of the ion generator according to Embodiment 2 of the present invention. As shown in FIG. 13 , on the upper surface side of the grille 119 , a plurality of grille-side projections 131 are circumferentially attached to the cylindrical main body 101 shown in FIG. 11 . Protrusion 131 .

14 is a detailed cross-sectional view of flange-side protrusions and grill-side protrusions of the ion generator according to Embodiment 2 of the present invention. As shown in FIG. 14 , one flange-side protrusion 130 is sandwiched between two grill-side protrusions 131 . On the other hand, one grill-side protrusion 131 is sandwiched between two flange-side protrusions 130 , and the flange-side protrusion 130 and the grill-side protrusion 131 are arranged so as not to overlap each other. In other words, at least one flange-side protrusion 130 is sandwiched by two grill-side protrusions 131 , and at least one grill-side protrusion 131 is sandwiched by two flange-side protrusions 130 .

In addition, as shown in FIG. 12 , a plurality of flange side protrusions 132 are provided on the flange side surface 102 a of the flange 102 . The side protrusion 132 of the flange has a wedge shape having an apex 132a at the top and an inclined side 132b extending from the flange upper portion 102c to the flange lower portion 102d in the flange radial direction 102b. The side protrusions 132 are provided with a flange having a triangular shape 132c when viewed from all sides, that is, when viewed from any angle. On the other hand, as shown in FIG. 13 , a concave portion 133 is provided on the grill inner wall surface 119 a of the grill 119 . The concave portion 133 is paired with the side protrusion 132 of the flange, and fits into the side protrusion 132 of the flange.

In the above structure, as shown in FIG. 9 , the turbofan 104 sucks the air in the room from the suction port 117 in the center of the grille 119 as seen from upstream along the flow of air. Then, the sucked air is uniformly sent out in the centrifugal direction by the turbo fan 104 .

Then, the uniformly sent air turns downward along the inner wall of the main body 101 and is uniformly blown out from the outlet 118 of the grille 119 through the air flow path 122 .

In addition, as shown in FIG. 11 , ions 142 are generated by the electrostatic atomization device 124 and released from the ion discharge port 127 . Then, the ions 142 are uniformly diffused (distributed) throughout the room along with the air blown out from the outlet 118 shown in FIG. 9 .

At this time, the ceiling-grill distance 141 between the ceiling 150 and the grill 119 is increased by the plurality of flange-side protrusions 130 and the plurality of grill-side protrusions 131 . In addition, since the gap air passage has more bends, the pressure loss in the gap between the ceiling 150 and the grill 119 increases, so that supply air leaking from the gap between the ceiling 150 and the grill 119 is suppressed. As a result, as shown in FIG. 11 , the ions 142 emitted from the ion discharge port 127 are added to the air uniformly sent in the centrifugal direction by the turbofan 104 , and are not blown out from the gap between the ceiling 150 and the grille 119 . Rather, the air blown out from the air outlet 118 is uniformly diffused (spread over) the entire room.

In addition, the pressure loss in the gap between the ceiling 150 and the grille 119 increases due to the plurality of flange-side protrusions 130 and the plurality of grille-side protrusions 131 shown in FIG. 9 . Therefore, the air passing through the air flow path 122 is blown out from the air outlet 118 without escaping from the gap between the ceiling 150 and the grille 119 . As a result, the ceiling 150 is less likely to be polluted, and not only is it effective for indoor circulation, but also the flange-side protrusions 130 and grille-side projections 130 are provided in an air supply louver that supplies air from outside air (outdoor air) to the room. The protrusion 131 is also effective.

In addition, as shown in FIG. 12 and FIG. 13 , the concave portion 133 is paired with the side protrusion 132 of the flange, and fits into the side protrusion 132 of the flange. The center of the flange 102 of the cylindrical main body 101 and the grille 119 are aligned easily by the concave portion 133 . Even if the flange-side protrusion 130 and the grill-side protrusion 131 are approached to increase the pressure loss in the gap between the ceiling 150 and the grille 119, the flange-side protrusion 130 and the grille-side protrusion 131 can be positioned so that they do not overlap each other. A grill 119 is mounted to the main body 101 . On the other hand, the attachment of the grill 119 to the flange 102 is restricted in position in the rotational direction. Therefore, the ion discharge port 127 and the light cylinder 128 shown in FIG. 11 can be arranged at any position with respect to the grille 119 .

In addition, the electrostatic atomizing device 124 is covered with the protective cover 126 , so the user does not directly touch the electrostatic atomizing device 124 . Therefore, even if the electrostatic atomization device 124 generates high voltage, the user will not touch it, so the safety is improved.

In addition, by using the turbofan 104 shown in FIG. 9 , no casing is required. Therefore, the size in the circumferential direction of the main body 101 can be reduced, and the holes to be drilled when installing and constructing the ceiling 150 can be reduced, and the construction becomes easy.

In addition, turbofan 104 overlaps so as to cover motor 105 . Moreover, as shown in FIG. 10, the motor 105 is mounted on the surface of the recessed part 115 of the top plate 106, so the height of the main body 101 can be reduced, and it can be installed even when the ceiling back 150 is low.

In addition, as shown in FIG. 11 , since the control circuit box 129 does not enter the inside of the main body 101 , the flow path inside the main body 101 can be enlarged. Therefore, the pressure loss inside the main body 101 is reduced, and the load and noise of the turbofan 104 shown in FIG. 10 are reduced.

Moreover, as shown in FIG. 11, the control circuit box 129 is arrange|positioned so that it may deviate from the central axis of the main body 101. As shown in FIG. Therefore, when the main body 101 is inserted into the hole opened in the ceiling 150, the main body 101 can be inserted into the hole from the control circuit box 129 at an inclination. As a result, it is not necessary to open a hole of the same size as that of the control circuit box 129 in the ceiling 150, so that construction man-hours can be reduced.

Industrial availability

Since the ion generator of the present invention is installed on the ceiling and can supply ions over a wide range, it is also useful in non-residential spaces such as living spaces, closets, bathrooms, toilets, and warehouses.

Explanation of reference signs

1. 101 subject

2, 102 flange

3, 103 top surface

4. 104 turbofans

5. 105 electric motor

6, 106 top plate

7, 7a, 107, 107a fixed parts

7b, 107b base parts

8. 108 holes

9, 109 long holes

10, 110 special bolts for parts

11, 111 fixed nut

12, 112 walls

13, 113 mounting holes

14, 114 motor flange

15, 116 axes

16, 117 Suction port

17, 118 outlet

17a Blow out inside

17b Blow Out Outside

18, 119 grille

18a Profile Thickness

19, 120 entrance part

20, 121 Cylindrical path

20a Cross-sectional area of air supply path

21, 122 air flow path

21a Cross-sectional area of exhaust path

22, 124 Electrostatic atomization device

23, 126 Protective cover

24, 127 ion outlet

25 standing part

26 protrusions

27 Engagement part

27a Engagement distance

28 clearance

29 claws

30 Fitting part

31 Substrate

32, 129 control circuit box

33 Lighting device

40, 140 behind the ceiling

41 ceiling surface

42, 142 ions

102a Side of flange

102b Flange radial direction

102c Flange upper

102d Flange lower part

115 Depression

123 Divider

125 Operation lights

128 Snoot

130 flange side protrusion

131 Projection on the side of the grille

132 Side protrusion of flange

133 Concave

134 contact surface

141 Ceiling-Grille distance

143 air

150 ceiling

Claims (5)

1. An ion generating device, characterized in that: Embed the subject behind the ceiling, The cylindrical main body has a flange at the lower part, A top plate holding a motor for rotating the centrifugal fan and the motor are provided on the top surface of the main body, The centrifugal fan connected to the motor is arranged under the top plate, The ion generating device has a grille fitted to the flange and has a suction port and a blower port, There is an electrostatic atomizing device inside the main body, and the ions generated by the electrostatic atomizing device are mixed with the air sucked in from the suction port by the centrifugal fan and discharged from the blowing port, wherein The circumferential flange-side protrusions provided on the flange and the circumferential grill-side protrusions provided on the grille are arranged so as not to overlap each other. 2. The ion generating device according to claim 1, characterized in that: The flange-side protrusions and the grill-side protrusions are respectively provided in plurality, at least one of the flange-side protrusions is sandwiched by two of the grill-side protrusions, and at least one of the grill-side protrusions is sandwiched by two of the grill-side protrusions. The two flange side protrusions are sandwiched. 3. The ion generating device according to claim 1, characterized in that: The flange has a plurality of flange side protrusions on the sides of the flange. 4. The ion generating device according to claim 3, characterized in that: The side protrusions of the flange are wedge-shaped with inclined sides from the upper part of the flange to the lower part of the flange in the radial direction of the flange. 5. The ion generating device according to claim 3, characterized in that: A concave portion is provided on the inner wall surface of the grille, and the concave portion fits with the side protrusion of the flange.