JP2004079388A - Negative ion generating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To well diffuse negative ions generated between a discharge electrode and a grounding electrode and miniaturize a fan for saving power and lowering noises. <P>SOLUTION: The negative ion generating device 100 provided with a discharge electrode 103, a grounding electrode 104 and a fan 101 to send them wind, and enabling to generate negative ions by generating corona discharge with the discharge electrode 103 and the grounding electrode 104 and to diffuse the negative ions with the wind sent out from the fan 101, is also provided with a base pedestal 105 with the plurality of discharge electrodes arrayed in a row on, and the fan 101 with a wind volume capable of partially diffusing the negative ions generated between the grounding electrode 104 and the plurality of the discharge electrodes 103, by a back-and-forth motion of which 101, the negative ions are to be diffused by turns. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a negative ion generator.
[0002]
[Prior art]
A conventional negative ion generator, particularly a negative ion generator using corona discharge, has a discharge electrode 303 and a ground electrode 304 separated from the discharge electrode 303 by a predetermined distance as shown in FIG. The discharge of electrons from the discharge electrode 303 toward the ground electrode 304 collides with gas molecules and fine particles, and the negatively charged gas molecules and the like are attracted to the positively charged ground electrode 304 by so-called ions. By generating wind, negative ions were diffused.
[0003]
Also, as shown in FIG. 5, by providing the fan 401 so as to send out the wind in the direction of the discharge electrode 403 and the ground electrode 404, the wind sent out by the fan 401 diffuses the negative ions. Conventionally, a plurality of discharge electrodes are provided to generate a large amount of negative ions, but only one fan 401 having a large air volume is used.
[0004]
[Problems to be solved by the invention]
However, when negative ions are diffused using a so-called ion wind as in the past, electrons are significantly smaller than gas molecules and the like, and negatively charged gas molecules and the like are diffused away from the ground electrode. This repulsion requires a greater repulsive force than the attractive force, so that it was impossible to sufficiently diffuse the negative ions.
[0005]
In the case where a single fan diffuses negative ions generated between a ground electrode and a plurality of discharge electrodes as in the related art, the difference between the ground electrode and the plurality of discharge electrodes is reduced. In order to sufficiently blow air to the negative ions generated between them, it is necessary to use a large fan having a large air volume, and there is a problem in terms of power consumption and noise.
[0006]
Therefore, the present invention provides a negative ion generator that sufficiently diffuses negative ions generated between a discharge electrode and a ground electrode, uses a fan with a small air volume, and saves power and reduces noise. With the goal.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention provides a discharge electrode, a ground electrode provided at a predetermined distance from the discharge electrode, and a fan that blows wind in the direction of the discharge electrode and the ground electrode, A negative ion generator that applies negative voltage to the discharge electrode and the ground electrode to generate corona discharge, thereby generating negative ions, and diffusing the negative ions by the wind sent by the fan. A base on which the plurality of discharge electrodes are arranged in at least one row, and a fan having a flow rate capable of partially diffusing negative ions generated between the ground electrode and the plurality of discharge electrodes. And by moving the fan, or by moving the base and the ground electrode, or Moving the base, the base, and the ground electrode, the negative ions generated between the ground electrode and the plurality of discharge electrodes are sequentially diffused. provide.
[0008]
The negative ion generator according to the present invention includes a discharge electrode, a ground electrode provided at a predetermined distance from the discharge electrode, and a fan that blows air in the direction of the discharge electrode and the ground electrode. The structure is such that negative ions generated by corona discharge between the discharge electrode and the ground electrode are diffused by applying wind blown out by a fan.
[0009]
A plurality of discharge electrodes are formed on the base in at least one row, and the fan partially removes negative ions generated between the plurality of discharge electrodes and the ground electrode. A fan having an air volume of such a degree as to diffuse into the fan is used. By moving such a fan, or by moving a base and a ground electrode, or by moving a fan, a base and a ground electrode Thereby, the negative ions generated between the ground electrode and the plurality of discharge electrodes are sequentially diffused.
[0010]
In other words, the fan only needs to have a flow rate that can partially diffuse the negative ions generated between the plurality of discharge electrodes and the ground electrode. Compared to the case where the negative ions generated between the discharged electrode and the ground electrode are diffused at a time, the volume of air that is expelled per unit time can be reduced, and the air volume can be reduced. Silence can be improved.
[0011]
For example, as a fan with a small air volume, when using a fan configured to send out wind in the direction of the discharge electrode and the ground electrode by rotating the wing about the axis, the rotation diameter at which the wing rotates is used. It can also be formed to be smaller than the distance between adjacent discharge electrodes.
[0012]
Further, as a fan having such an air volume, for example, there is a fan having an air volume of 300 l / min and a maximum static pressure of 2.2 mmAg.
[0013]
It is sufficient that at least one row is arranged for a plurality of discharge electrodes. However, the formation of a plurality of rows increases the amount of negative ions generated.
[0014]
Here, the fan, the discharge electrode, and the base are means for reciprocating the fan in the direction in which the discharge electrodes are arranged, or for reciprocating the base and the ground electrode in this direction while maintaining their positional relationship. Can be moved.
[0015]
Means for circularly moving the fan by forming the base in an annular shape and positioning the fan at the center of the base in the annular shape, or means for circularly moving the base and the ground electrode around the fan. Thereby, the fan, the discharge electrode, and the base may be moved.
[0016]
It should be noted that the use of a fan having a noise level of 29 dBA or less can ensure quietness.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a schematic configuration diagram of a negative ion generator 100 according to the first embodiment of the present invention.
[0018]
The negative ion generator 100 includes a discharge electrode 103 to which a power supply 106 is connected, a ground electrode 104 partially grounded, a fan 101 for sending wind in the direction of the discharge electrode 103 and the ground electrode 104, and a fan 101. It is constituted by a driving device 107 for moving.
[0019]
The discharge electrode 103 and the ground electrode 104 are provided at a predetermined distance X from each other, and the fan 101 blows air in the direction of the discharge electrode 103 and the ground electrode 104, that is, in the direction A in FIG. Are located.
[0020]
A power supply 106 is connected to the discharge electrode 103, and a corona discharge is generated between the power supply 106 and the ground electrode 104, which is partially grounded, to generate negative ions, and the fan 101 sends out the negative ions. They are spread by the wind.
[0021]
The distance X needs to be appropriately selected in consideration of a voltage or the like that can be applied by the power supply 106 connected to the discharge electrode 103.
[0022]
By providing the discharge electrode 103 and the ground electrode 104 at a predetermined distance X in this manner and applying a voltage from the power supply 106 to the discharge electrode 103, a corona discharge occurs, and the corona discharge causes the discharge electrode 103 to move from the ground electrode 104 to the ground electrode 104. Are diffused toward the electrodes, the electrons jump into gas molecules and fine particles between the discharge electrode 103 and the ground electrode 104, and negative ions are generated.
[0023]
The negative ions generated in this manner are diffused by the wind sent from the fan 101.
[0024]
The discharge electrodes 103 are provided in a line on a base 105 formed in a straight line, and are arranged in the direction of the ground electrode 104 so as to easily generate a corona discharge with the ground electrode 104. It is formed in a conical shape so as to be convex.
[0025]
In the present embodiment, the five discharge electrodes 103 are provided in a line, but the number of the discharge electrodes 103 and the number of the columns are not limited thereto, and the number of the discharge electrodes 103 is increased. Further, by increasing the number of rows, it is possible to increase the amount of generated negative ions.
[0026]
However, if the number of discharge electrodes 103 and the number of columns are excessively increased, the air volume of the fan 101 must be increased accordingly, so that these numbers are within a range where the power consumption and noise of the fan 101 do not become too large. You need to make a timely choice.
[0027]
The ground electrode 104 is provided with a through hole 104 a at a position facing the discharge electrode 103.
[0028]
This is to secure a path for the negative ions generated between the discharge electrode 103 and the ground electrode 104 and diffused by the wind blown out by the fan 101.
[0029]
The size and shape of the through-hole 104a can be freely designed as long as the purpose of securing the passage of the wind sent from the fan 101 can be achieved.
[0030]
The fan 101 according to the present embodiment is formed so that the four blades 101a rotate around the shaft 101b, so that the wind is directed in the direction of the discharge electrode 103 and the ground electrode 104, that is, the direction A in FIG. The rotation diameter Y at which the wing 101a rotates about the axis 101b is smaller than the distance Z between the adjacent discharge electrodes 103.
[0031]
As shown in FIG. 2, in order to move the fan 101, the driving device 107 attaches a gear 109 to a rotating shaft 108 a of a motor 108, attaches a driving pulley 110 to the gear 109, and A V-belt 112 is stretched between the driven pulley 110 and a driven pulley 111 provided at a predetermined distance from the driving pulley 110. By attaching a fan 101 to the V-belt 112, reciprocating motion is achieved. That is, it is configured to reciprocate in the direction BB ′ of FIG.
[0032]
Further, the fan 101 used in the present embodiment has an air volume of 300 l / min, a maximum static pressure of 2.2 mmAg, and a noise level of 29 dBA.
[0033]
By using such a small fan 101 having a small capacity and moving the fan 101 so that the wind hits all the discharge electrodes 103, power saving and noise reduction can be achieved, and sufficient negative ions can be obtained. Will be spread.
[0034]
In this embodiment, the fan 101 is moved. For example, the fan 101 is fixed, and the base 105 on which the discharge electrode 103 is provided and the ground electrode 104 maintain the positional relationship therebetween. As it is, the fan 101, the base 105, and the ground electrode 104 may be reciprocated in the direction of BB ′ in FIG.
[0035]
FIG. 3 is a schematic configuration diagram of a negative ion generator 200 according to the second embodiment of the present invention.
[0036]
In the negative ion generator 200 according to the present embodiment, unlike the negative ion generator 100 according to the first embodiment, a base on which the ground electrode 204 is formed annularly around the fan 101 and the discharge electrode 103 is provided. 205 is also formed annularly inside the ground electrode 204.
[0037]
A motor 208 is connected to the fan 101, and as shown in FIG. 3, makes a circular motion in the axial direction of the rotation shaft 208 a of the motor 208, that is, in the C direction in FIG. 3. A wind is generated outward from the fan 101 to diffuse the negative ions generated between the discharge electrode 103 and the ground electrode 204.
[0038]
In the present embodiment, the fan 101 is rotated. For example, the fan 101 is fixed, and the base 205 and the ground electrode 204 are rotated about the fan 101 while maintaining their positional relationship. The fan 101, the base 205, and the ground electrode 204 can be rotated.
[0039]
【The invention's effect】
As described above, since the present invention is configured, it is possible to sufficiently diffuse the negative ions generated between the discharge electrode and the ground electrode, to reduce the air volume of the fan, and to save power and reduce noise.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a negative ion generator 100 according to a first embodiment.
FIG. 2 is a schematic configuration diagram of a driving device 107.
FIG. 3 is a schematic configuration diagram of a negative ion generator 200 according to a second embodiment.
FIG. 4 is a schematic configuration diagram of a conventional negative ion generator 300.
FIG. 5 is a schematic configuration diagram of a conventional negative ion generator 400.
[Explanation of symbols]
100, 200 Negative ion generator 101, 401 Fan 103 Discharge electrode 104, 204, 304, 404 Ground electrode 105, 205 Base 106 Power supply 107 Drive unit 108, 208 Motor

Claims (6)

A discharge electrode, a ground electrode provided at a predetermined distance from the discharge electrode, and a fan that sends out wind in the direction of the discharge electrode and the ground electrode,
A negative ion generator that applies a voltage to the discharge electrode and the ground electrode to generate corona discharge, thereby generating negative ions, and diffusing the negative ions by the wind sent by the fan,
A base in which the plurality of discharge electrodes are arranged in at least one or more rows, and a fan having a flow rate capable of partially diffusing negative ions generated between the ground electrode and the plurality of discharge electrodes, Has,
By moving the fan, or by moving the base and the ground electrode, or by moving the fan and the base and the ground electrode, the ground electrode and the plurality of discharge electrodes Wherein the negative ions generated between the two are diffused in order. The fan is configured to send wind in the direction of the discharge electrode and the ground electrode by rotating a wing about an axis, and the rotating diameter of the wing is between the adjacent discharge electrodes. The negative ion generator according to claim 1, wherein the distance is smaller than the distance. Means for reciprocating the fan in the direction in which the discharge electrodes are arranged, or reciprocating the base and the ground electrode in the direction while maintaining their positional relationship. Item 3. The negative ion generator according to item 1 or 2. The base is formed in an annular shape,
The fan is located at the center of the base formed in an annular shape,
The negative ion generator according to claim 1 or 2, further comprising means for causing the fan to make a circular motion, or making the base and the ground electrode make a circular motion about the fan. The negative ion generator according to any one of claims 1 to 4, wherein the fan has an air volume of 300 L / min and a maximum static pressure of 2.2 mmAg. The negative ion generator according to claim 1, wherein a noise level of the fan is equal to or less than 29 dBA.

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