JP6186592B2 - Ion generator - Google Patents

Description

  The present invention relates to an ion generator for sterilizing and deodorizing indoor spaces.

Conventionally, this type of ion generator supplies active species such as ions and radicals (hereinafter referred to as ions) to the air to suppress bacteria in the air (sanitization), or decomposes the odor in the air. It is developed for the purpose of purifying air (deodorizing) and is widely used in ordinary households. Here, what was aimed at the installation to a ceiling is known (for example, refer to patent documents 1).

  In addition, this type of ion generator fixing method has a hindrance to insertion into equipment mounting holes provided on the ceiling surface, as well as equipment such as duct ventilation fans and grills used for ventilation and air conditioning. There is known one having a shape that does not cause damage to the mounting surface (see, for example, Patent Document 2).

  Hereinafter, the ion generator will be described with reference to FIGS.

  As shown in FIG. 10, the main body 101 has a grill 102 having a suction port 103 and a blower outlet 104 on the lower surface thereof, and has a centrifugal fan 105 inside the main body 101, and ions inside the main body 101. And an ion discharge port 107 for discharging ions generated by the electrostatic atomizer 106.

  The ions from the ion discharge port 107 are mixed before the air sucked from the suction port 103 is blown out from the blowout port 104, and blown out from the blowout port 104 as air containing ions.

  As shown in FIG. 11, it is supported in a recessed groove 108 provided on the outer periphery 101a of the main body 101 so as to be tilted upright or lying down, and the lower surface flange 109 of the main body 101 and the indoor surface 110a of the ceiling 110 are supported. , A movable means 115 having a movable body 113 for moving a mounting bracket 112 in which a pressing bracket 111 pressed against the outdoor surface 110b is swingably disposed. The support means 114 and the movable means 115 of the mounting bracket 112 are provided. In the back wall 116, a duct connection 117 on the upper surface of the main body 101, and a grill 118 on the lower surface of the main body 101.

JP 2011-253780 A Japanese Patent Laid-Open No. 10-246486

  Such a conventional ion generator has a problem that the air flow characteristics and noise characteristics of a centrifugal fan not having a casing deteriorate due to the mounting portion of the mounting bracket for fixing the main body.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object of the present invention is to provide an ion generator that can prevent deterioration of air flow characteristics and noise characteristics of a centrifugal fan that does not have a casing.

The rotation in order to achieve this object, the present invention includes a cylindrical body having a flange on the lower side, an electric motor held in the top plate of the main body, provided on the top plate downward, by the electric motor A centrifugal fan, a grille provided on the lower surface of the main body, having a blower outlet and a suction port, and an electrostatic atomizing means provided inside the main body for generating ions , the electrostatic atomizing means In the ion generator in which the generated ions are sucked from the suction port by the centrifugal fan and mixed with the air discharged from the blowout port,
The electrostatic atomization means is provided above the top plate of the main body, and the outer peripheral inner wall surface of the main body has a front
An ion air passage portion that conveys ions generated from the electrostatic atomizing means is provided, and an ion air passage slope that is inclined so as to descend toward the downstream side in the rotational direction of the centrifugal fan is provided on the outer peripheral inner wall surface of the main body The ion air passage portion is a cylindrical shape protruding from the outer peripheral inner wall surface, and is provided with an ion discharge port below, and the ion air passage inclined portion is upstream of the ion air passage portion in the rotation direction of the centrifugal fan. are those provided in, thereby is to achieve the intended purpose.

According to the present invention, a cylindrical body having a flange on the lower side, an electric motor held in the top plate of the main body, the top plate is provided below, a centrifugal fan which is rotated by said motor, said body A grill having an air outlet and a suction port, and an electrostatic atomizing means provided inside the main body for generating ions , wherein the ions generated by the electrostatic atomizing means In the ion generator that is sucked in by the suction port and mixed with the air discharged from the outlet,
The electrostatic atomization means is provided above the top plate of the main body, and an ion air passage section that conveys ions generated from the electrostatic atomization means is provided on the outer peripheral inner wall surface of the main body, The outer peripheral inner wall surface of the main body is provided with an ion air passage inclined portion that is inclined so as to descend toward the downstream side in the rotation direction of the centrifugal fan. And the ion air passage inclined portion is provided upstream of the ion air passage portion in the direction of rotation of the centrifugal fan. Since the wind flows along the inner side slope part, the air flow characteristics and noise characteristics of the centrifugal fan without the casing are prevented from being deteriorated by the mounting part of the mounting bracket for fixing the main body. Can Kill, effect it is possible to obtain that.

Side surface sectional drawing of the state which attached the ion generator of Embodiment 1 of this invention to the ceiling Enlarged view showing the structure of the mounting bracket of the ion generator The perspective view seen from the bottom of the main components inside the main body of the ion generator Front sectional view of the ion generator installed on the ceiling The exploded perspective view which showed the control circuit of the ion generator The perspective view which looked at the control circuit of the ion generator from the bottom The exploded perspective view which shows the fixation structure of the control circuit case of the ion generator Partial sectional view of the ion generator The perspective view seen from the bottom of the main components inside the main body of the ion generator Perspective view of rectifier plate of ion generator The perspective view seen from the lower part which shows the state which attached the baffle plate to the same ion generator An exploded perspective view showing a configuration of a conventional ion generator Side sectional view of the equipment mounting device of the same ion generator

The ion generating apparatus according to claim 1 of the present invention includes a cylindrical body having a flange on the lower side, an electric motor held in the top plate of the main body, provided on the top plate downward, is rotated by the electric motor A centrifugal fan that is provided on the lower surface of the main body and has a blower outlet and a suction opening, and an electrostatic atomizing means that is provided inside the main body and generates ions, and is generated by the electrostatic atomizing means. In the ion generator in which the ions are sucked from the suction port by the centrifugal fan and mixed with the air discharged from the outlet,
The electrostatic atomization means is provided above the top plate of the main body, and an ion air passage section that conveys ions generated from the electrostatic atomization means is provided on the outer peripheral inner wall surface of the main body, The outer peripheral inner wall surface of the main body is provided with an ion air passage inclined portion that is inclined so as to descend toward the downstream side in the rotation direction of the centrifugal fan. The ion air passage inclined portion is upstream of the ion air passage portion in the rotational direction of the centrifugal fan.
It has the structure that it was provided .

  As a result, the wind discharged from the centrifugal fan flows along the inner surface of the main body, and the wind flows downward along with the ions discharged from the ion air passage along the ion air passage inclined portion. There is an effect that the ions can be efficiently discharged from the grill by the attraction effect without deteriorating the air volume characteristic and noise characteristic of the centrifugal fan which does not have the casing by the road portion.

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

(Embodiment 1)
As shown in FIGS. 1 to 11, the main body 1 is embedded in the ceiling 100 to generate ions from the ceiling 100. As shown in FIG. 1, the main body 1 has a cylindrical shape. A flange 5 is provided below, a grill 5 having a suction port 3 and an outlet 4 is provided below the flange 2, and a turbo fan 7 and a turbo fan as centrifugal fans are provided on the top surface 6 above the main body 1. A top plate 9 for holding the motor 8 is provided on the top surface 6, and a turbo fan 7 connected to the motor 8 is incorporated below the top plate 9.

  The electric motor 8 may be either direct current (DC) or alternating current (AC).

  Further, the air passage structure sucks indoor air from the entire circumference of the suction port 3, and is sucked into the turbo fan 7 through the cylindrical path 11 a through the orifice 10, and blown out to the entire circumference of the turbo fan 7. It passes through a cylindrical path 11b on the outside and is discharged from the entire circumference of the outlet 4 of the grill 5 into the room.

  Further, as shown in FIG. 2, a mounting bracket 12 is provided to fix the main body 1 to the ceiling 100, and a hole 15 in the outer surface concave portion 14 of the outer surface 13 of the main body 1 and a long hole 16 in the mounting bracket 12 are provided. A fixing nut 18 is provided at the front end of the metal threading screw 17 that passes therethrough.

  By rotating the metal fitting screw 17, the fixing nut 18 whose movement in the rotation direction is restricted by the outer surface concave portion 14 on the ceiling 100 side provided on the side surface of the main body 1 moves up and down, and the mounting metal 12 is moved downward. The main body 1 is fixed to the ceiling 100 by sandwiching the ceiling 100 between the flange 2 and the mounting bracket 12 (see FIG. 4).

  Further, as shown in FIG. 3, an inner surface convex portion 19 is formed inside the main body 1 by the outer surface concave portion 14 recessed from the outer surface 13 of the main body 1 toward the inside, and the inner surface convex portion is projected from the top surface 6. An inner side inclined portion 20 is formed to be inclined toward the grill 5 side of the portion 19, that is, toward the lower end of the inner side convex portion 19.

  Therefore, when the air blown out from the turbo fan 7 blows out into the room from the outlet 4 (not shown) of the grill 5 (not shown), the step of the inner surface convex portion 19 in the main body 1 is caused by the wind resistance. Since it flows along the inner side inclined part 20 from the top surface 6 toward the grill 5 side of the inner side convex part 19, the pressure loss due to the inner side convex part 19 is reduced, and the air volume characteristic and the noise characteristic are reduced. It is possible to prevent the deterioration, and it is difficult for turbulent flow to occur in the space where the inner surface convex portion 19 and the main body 1 are joined.

  Further, as shown in FIG. 4, a control circuit case 22 is provided above the top plate 9 to house a control board (not shown) for controlling the electric motor 8 and the electrostatic atomizing means 21 for generating ions. The control circuit case 22 is covered with the control circuit case cover 23.

  As shown in FIG. 5, a control board 24 a that mainly performs power supply control and a control board 24 b that controls the electrostatic atomizing means 21 are housed in the control circuit case 22. It is fixed to the control circuit case 22 while being fixed to the electrostatic atomizer holding case 25.

  In addition, by configuring the control circuit case 22 and the control circuit case cover 23 with a flame-retardant resin, it is possible to prevent the spread of fire even when ignition occurs from a charging unit such as the control board 24a and the control board 24b.

  Since the electrostatic atomizing means 21 is similarly covered with the control circuit case 22 and the control circuit case cover 23, the space for preventing the spread of fire can be limited, and a reasonable safety measure can be taken. It can be carried out.

  As shown in FIG. 6, for example, a round ion outlet 26 is provided directly below the electrostatic atomizing means 21 to blow out the generated ions.

  Further, as shown in FIGS. 6 and 7, there is a fitting portion 27 with the main body 1 around the ion outlet 26 of the control circuit case 22, and the control circuit case 22 is also fitted to the main body 1 side. A fitting portion 28 is provided in the portion, and the control circuit case 22 and the control circuit case cover 23 are fitted to each other. The fitting portion 27 is fixed to the main body 1 and has a concave shape on the entire periphery, and a protrusion shape on the entire periphery. The fitting portion 28 having the overlap overlaps to form a path through which ions pass.

  As shown in FIG. 8, the ions blown out from the ion blower outlet 26 are bent at a substantially right angle in the circumferential direction of the main body 1 between the fitting portion 27 and the fitting portion 28 on the upper portion of the main body 1, and It is a structure that is discharged from the ion discharge port 30 through a cylindrical ion air passage portion 29 provided on the outer peripheral portion.

  As shown in FIG. 9, an ion air passage inclined portion 31 is formed to be inclined on the inner surface of the main body 1 toward the ion discharge port 30 of the ion air passage portion 29, and ions passing through the ion air passage portion 29 are turbocharged. The fan 7 mixes with the air blown along the ion air passage inclined portion 31 and is discharged into the room.

  Therefore, when the air blown from the turbo fan 7 blows into the room from the blowout port 4 (not shown) of the grill 5 (not shown), the ions blown out from the ion discharge port 30 are attracted and blown into the room. The air can be prevented from flowing backward from the ion discharge port 30.

  In addition, since no backflow occurs, dust or foreign matter does not have a risk of entering the electrostatic atomizing means 21 (not shown) through the ion air passage portion 29.

  With such a configuration, the air blown from the turbo fan 7 in the main body 1 flows along the inner side surface of the main body, so that turbulent flow is generated in the space where the ion air passage portion 29 and the main body 1 are joined. Since it is difficult to occur, ions can be efficiently released from the grille by the attractive effect without deteriorating the air flow characteristics and noise characteristics.

  Further, by arranging the ion discharge ports 30 so as to be substantially improved as viewed from the lower surface of the main body 1, the ion discharge ports 30 are evenly diffused over the entire circumference by the air supplied from the grill 5 into the room in the circumferential direction. The ions can be supplied in the entire circumferential direction.

  A cylindrical rectifying plate 33 is provided on the lower surface of the orifice 10 so that it can be attached later.

By doing so, air in the room (not shown) is sucked into the turbofan 7 from the circular suction port 3 of the grill 5 through the space between the cylindrical rectifying plate 33 and the orifice 10, and thus in different directions. As a result, it is possible to reduce the resistance caused by the collision of the intake air from the air, so that the intake air volume increases and the power consumption value required to satisfy the required air volume can be reduced.

  Further, it is assumed that the rectifying plate diameter 34 which is the diameter of the cylindrical rectifying plate 33, that is, the portion where air does not pass is longer than the electric motor diameter 32 which is the diameter of the electric motor 8. Desirably, the length of the diameter is such that the suction airflow does not hinder.

  A part of the sound generated from the electric motor 8 collides with the rectifying plate central side wall surface 35 which is the wall surface on the central side of the cylindrical rectifying plate 33 and is attenuated to enter the room through the suction port 3. Noise can be reduced.

  The ion generator according to the present invention is attached to the ceiling and enables ion supply without deteriorating the air flow characteristics and noise characteristics. Therefore, the effects and effects that can be brought about by ions are supplied to a living space or the like. In particular, it is also useful in non-residential spaces such as closets, baths, toilets, and warehouses.

DESCRIPTION OF SYMBOLS 1 Main body 2 Flange 3 Intake port 4 Outlet 5 Grill 6 Top surface 7 Turbofan 8 Electric motor 9 Top plate 10 Orifice 12 Mounting bracket 13 Outer surface 14 Outer side recessed part 19 Inner side convex part 20 Inner side inclined part 21 Electrostatic atomization Means 29 Ion air passage portion 30 Ion outlet 31 Ion air passage inclined portion 32 Electric motor diameter 33 Rectifier plate 34 Rectifier plate diameter 35 Rectifier plate central side wall surface 100 Ceiling

Claims (1)

A cylindrical body having a flange on the lower side,
An electric motor held on the top plate of the main body,
A centrifugal fan provided below the top plate and rotated by the electric motor;
A grill provided on the lower surface of the main body and having a blowout opening and a suction opening;
Provided inside the main body, comprising electrostatic atomizing means for generating ions ,
Ions generated by the electrostatic atomizing means are sucked from the suction port by the centrifugal fan and mixed into the air discharged from the blowout port.
The electrostatic atomizing means is provided above the top plate of the main body,
The outer peripheral inner wall surface of the main body is provided with an ion air passage section that conveys ions generated from the electrostatic atomization means,
The outer peripheral inner wall surface of the main body is provided with an ion air passage inclined portion which is inclined so as to be lowered toward the downstream side in the centrifugal fan rotation direction,
The ion air passage portion has a cylindrical shape protruding from the outer peripheral inner wall surface, and includes an ion discharge port below.
The ion generator according to claim 1, wherein the ion air passage inclined portion is provided upstream of the ion air passage portion in the rotation direction of the centrifugal fan.

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