JP7225234B2 - discharge device - Google Patents

Description

The present invention relates to a discharge device provided in equipment such as an air conditioner.

2. Description of the Related Art Conventionally, an ion generator that purifies, sterilizes, or deodorizes indoor air is known as a discharge device. An ion generator generates ions by applying a high voltage to a needle-like or brush-like discharge electrode and generating a corona discharge between the tip of the discharge electrode and an induction electrode. Such an ion generator is usually attached to an air passage for blowing out air from an air conditioner.

Ion generators typically generate positive and negative ions, as disclosed in US Pat. For this purpose, the ion generator includes, as discharge electrodes, a positive discharge electrode for generating positive ions and a negative discharge electrode for generating negative ions.

Specifically, in the ion generator, when a positive high voltage is applied between a positive discharge electrode and an induction electrode, positive ions are generated by corona discharge, and positive ions are generated between the negative discharge electrode and the induction electrode. When a negative high voltage is applied, negative ions are generated by corona discharge.

Moreover, when the generated positive ions and negative ions come into contact with each other, they are electrically neutralized and the amount of ions decreases. Therefore, in Patent Document 2, in order to make it difficult for positive ions and negative ions to mix, a partition plate is provided between a positive ion generating element having a positive discharge electrode and a negative ion generating element having a negative discharge electrode. are provided. The partition plate is parallel to the air flow direction in the air passage.

Japanese patent publication "JP 2010-044917" Japanese patent publication "JP 2009-66029"

However, while the partition plate makes it difficult for the generated positive ions and negative ions to mix, it also has the effect of reducing the amount of ions by adhering the generated positive ions and negative ions to the partition plate. Therefore, as disclosed in Patent Document 2, the configuration in which a partition plate is simply provided between the positive ion generating element and the negative ion generating element may rather reduce the amount of ions. have.

An object of one aspect of the present invention is to provide a discharge device capable of suppressing reduction of discharge products by the first discharge electrode and discharge products by the second discharge electrode.

In order to solve the above problems, a discharge device according to an aspect of the present invention includes a housing, first and second discharge electrodes protruding from an upper surface of the housing, and a third electrode. In a discharge device that generates first and second discharge products by discharge between the first and second discharge electrodes and the third electrode, a height is provided between the first discharge electrode and the second discharge electrode is higher than the upper ends of the first and second discharge electrodes, and the partition member is arranged in a direction intersecting the direction in which the first and second discharge electrodes are arranged and in a direction along the upper surface of the housing. and the downstream end of the wind flow is the most downstream of the downstream ends of the first and second discharge electrodes and the third electrode. It exists at the same position as the most downstream end of the electrode or upstream of the most downstream end of the electrode.

According to one aspect of the present invention, it is possible to suppress the situation where the discharge products from the first discharge electrode and the discharge products from the second discharge electrode are mixed and reduced.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the structure of the ion generator as a discharge device of embodiment of this invention. FIG. 2(a) is a front view of the ion generator, FIG. 2(b) is a plan view of the ion generator, and FIG. 2(c) is the ion generator of FIG. ), FIG. 2(d) is a BB cross-sectional view of FIG. 2(b) of the ion generator, and FIG. 2(e) is the ion generator 1 of FIG. It is a C direction side view in (b). It is explanatory drawing which shows the positional relationship of the positive side discharge electrode of the said ion generator, a partition plate, and an induction electrode. It is a longitudinal cross-sectional view of an air cleaner as an air conditioner to which the ion generator is attached. FIG. 5(a) is a front view of an ion generator according to another embodiment of the present invention, and FIG. 5(b) is a plan view of the ion generator 2 of FIG. 5(a). FIG. 6 is an explanatory diagram showing the positional relationship among the positive discharge electrode, the partition plate and the induction electrode of the ion generator according to still another embodiment of the present invention; FIG. 6 is an explanatory diagram showing the positional relationship among the positive discharge electrode, the partition plate and the induction electrode of the ion generator according to still another embodiment of the present invention; It is a perspective view which shows the structure of the ion generator of still another embodiment of the present invention. It is a perspective view which shows the structure of the ion generator of still another embodiment of the present invention. FIG. 10(a) is a front view of an ion generator according to still another embodiment of the present invention, and FIG. 10(b) is a plan view of the ion generator shown in FIG. 10(a). It is a top view which shows the 1st structural example of the induction electrode which the ion generator of embodiment of this invention has. It is a top view which shows the 2nd structural example of the induction electrode which the said ion generator has. FIG. 5 is a plan view showing a third configuration example of an induction electrode of the ion generator. FIG. 11 is a plan view showing a fourth configuration example of the induction electrode of the ion generator. FIG. 15(a) is a plan view showing a fifth configuration example of the induction electrode of the ion generator, and FIG. 15(b) is a front view of the induction electrode shown in FIG. 15(a). FIG. 16(a) is a plan view showing a sixth configuration example of the induction electrode of the ion generator, and FIG. 16(b) is a front view of the induction electrode shown in FIG. 16(a). FIG. 17(a) is a plan view showing a seventh structural example of the induction electrode of the ion generator, and FIG. 17(b) is a front view of the induction electrode shown in FIG. 17(a). (a) of FIG. 18 is a plan view showing the ion generator used for verifying the effect of the partition plate of the ion generator of the embodiment of the present invention, and (b) of FIG. 18 is (a) of FIG. 18(c) is a side view of the ion generator shown in FIG. 18(a). It is explanatory drawing which shows the measurement state of ion concentration for verification of the effect of the partition which the ion generator of embodiment of this invention has. 20(a) is a front view showing the mounting state of the ion generator in the equipment shown in FIG. 19, and FIG. 20(b) is a cross-sectional view taken along line DD in FIG. 20(a). It is explanatory drawing which shows the verification result of the effect of the partition which the ion generator of embodiment of this invention has. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a longitudinal sectional view showing the configuration of an air cleaner as an air conditioner of this embodiment of the present invention; 23 is a perspective view showing an ion generator attached to the air cleaner shown in FIG. 22. FIG. FIG. 23 is a perspective view showing a state in which an ion generator is attached to the blowout air passage of the air purifier shown in FIG. 22; FIG. 25(a) is a plan view of the state of FIG. 24, and FIG. 25(b) is a plan view showing the configuration of the device mounting portion of the outlet air passage shown in FIG. 25(a). FIG. 9 is a plan view showing the configuration of the device mounting portion of the blowing air passage in an air cleaner as an air conditioner according to another embodiment of the present invention;

[Embodiment 1]
(Configuration of ion generator 1)
(Overview of Configuration of Ion Generator 1)
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below based on the drawings. FIG. 1 is a perspective view showing the configuration of an ion generator 1 as a discharge device of this embodiment. 2A is a front view of the ion generator 1, FIG. 2B is a plan view of the ion generator 1, and FIG. A side view in (b) of (b), (d) of FIG. 2 is a cross-sectional view of the ion generator 1 taken along line BB in (b) of FIG. 2. It is a C direction side view in (b) of FIG. FIG. 3 is an explanatory diagram showing the positional relationship among the positive discharge electrode 11, the partition plate 14 and the induction electrode 16 of the ion generator 1. As shown in FIG.

As shown in FIGS. 1 to 3, the ion generator 1 includes a positive discharge electrode (first discharge electrode) 11, a negative discharge electrode (second discharge electrode) 12, a housing portion 13, a partition plate (partition member ) 14, an electrode protection portion 15, an induction electrode 16 (third electrode, see FIG. 3), and an electrode substrate 17 (see FIG. 3).

The housing part 13 is made of insulating resin and has, for example, a box shape. The housing portion 13 accommodates therein the electrode substrate 17, a circuit substrate (not shown), and the like. Positive and negative discharge electrodes 11 and 12 are provided on the electrode substrate 17 in the direction normal to the upper surface (see FIG. 3). An induction electrode 16 is provided around the positive and negative discharge electrodes 11 and 12 on the upper surface of the electrode substrate 17 . The upper surface of the induction electrode 16 , that is, the upper surface of the electrode substrate 17 is covered with a resin layer 18 . Note that FIG. 3 shows only the positive discharge electrode 11 .

The circuit board has a discharge voltage supply circuit that generates positive and negative high voltages. A voltage generated by the discharge voltage supply circuit is supplied to the positive and negative discharge electrodes 11 and 12 and the induction electrode 16 . Specifically, the discharge voltage supply circuit applies a high voltage positive pulse to the positive discharge electrode 11, applies a high voltage negative pulse to the negative discharge electrode 12, and applies a positive voltage to the induction electrode 16. A voltage is applied to generate a discharge between the side discharge electrode 11 and the negative side discharge electrode 12 .

The positive and negative discharge electrodes 11 and 12 are brush-shaped electrodes in this embodiment. These positive and negative discharge electrodes 11 and 12 protrude at the same height from the upper surface of the casing 13 and are arranged side by side with a space therebetween.

Induction electrode 16 is insulated from positive and negative discharge electrodes 11 and 12 and provided around positive and negative discharge electrodes 11 and 12 .

In addition, although the ion generator 1 is configured to have one each of the positive and negative discharge electrodes 11 and 12, they may have a plurality of electrodes. This point also applies to other ion generators described below.

(Partition plate 14)
The partition plate 14 is made of resin and provided between the positive discharge electrode 11 and the negative discharge electrode 12 so as to partition the space between the positive discharge electrode 11 and the negative discharge electrode 12. there is The height of the partition plate 14 is higher than the height of the upper ends of the positive and negative discharge electrodes 11 and 12 .

Here, the ion generating device 1 generates wind in a direction intersecting, preferably perpendicular to, the direction in which the positive side discharge electrode 11 and the negative side discharge electrode 12 are arranged in an air passage of an air conditioner (equipment). is installed so that the In FIG. 1 and FIG. 2(b), the direction of air flow is indicated by arrows. Therefore, the partition plate 14 is parallel to the air flow direction in the air passage.

In addition, the downstream end of the partition plate 14 (hereinafter referred to simply as the downstream end) of the partition plate 14 should not be located downstream of the downstream end of the induction electrode 16 in the air flow direction. It has become. That is, the downstream end of the partition plate 14 is located at the same position as the downstream end of the induction electrode 16 or upstream of the downstream end of the induction electrode 16 . 1 to 3, the downstream end of the partition plate 14 is located at the same position as the downstream end of the induction electrode 16. As shown in FIG.

Further, due to the positional relationship between the positive and negative discharge electrodes 11 and 12 and the induction electrode 16, the downstream end of the positive and negative discharge electrodes 11 and 12 is closer to the downstream end of the induction electrode 16 than the downstream end of the induction electrode 16. If it exists on the downstream side, it will be as follows. That is, the downstream end of the partition plate 14 is positioned at the same position as the downstream ends of the positive and negative discharge electrodes 11 and 12 or upstream of the downstream ends of the positive and negative discharge electrodes 11 and 12 . exists in

The positional relationship among the partition plate 14, the induction electrode 16, and the positive and negative discharge electrodes 11 and 12 described above can be summarized as follows. That is, the downstream end of the partition plate 14 is the most downstream end of the positive and negative discharge electrodes 11 and 12 and the downstream end of the induction electrode 16 (hereinafter referred to as the electrode most downstream end). portion) or on the upstream side of the most downstream end of the electrode. The electrode most downstream end of the induction electrode 16 here includes not only the substantially circular portions formed around the positive and negative discharge electrodes 11 and 12, but also the connecting portion and the branch portion.

(Electrode protection part 15)
The electrode protection portion 15 is provided at a position opposite to the partition plate 14 with respect to the positive discharge electrode 11 and at a position opposite from the partition plate 14 with respect to the negative discharge electrode 12 . As with the partition plate 14 , the electrode protection portion 15 is higher than the upper ends of the positive and negative discharge electrodes 11 and 12 .

Like the partition plate 14, the electrode protection portion 15 is parallel to the air flow direction in the air passage. Further, the electrode protection portion 15 has a rectangular frame shape, and the inside thereof is an opening portion 15a. Specifically, the electrode protection portion 15 is formed by connecting a bar-shaped horizontal member 15b and a bar-shaped vertical member 15c. The vertical member 15c includes a first vertical member 15c1 on the upstream side of the air flow and a second vertical member 15c2 on the downstream side. The horizontal member 15b connects the upper ends of the first vertical member 15c1 and the second vertical member 15c2. Note that the frame shape of the electrode protection portion 15 is not limited to a square.

(Arrangement state of the ion generator 1 in the air cleaner 21)
The ion generator 1 is used by being attached to an air passage for blowing out air of various air conditioners. Here, air conditioners include air conditioners, air purifiers, humidifiers, and other various devices having an air blowing function.

FIG. 4 is a longitudinal sectional view of an air cleaner 21 as an air conditioner to which the ion generator 1 is attached. As shown in FIG. 4, the air cleaner (equipment) 21 has a blowing air passage 23 extending vertically inside a housing 22 . An upper end portion of the blow-out air passage 23 is an opening, serving as a blow-out port 23a.

A blower 24 is provided in the lower part of the blowing air passage 23, and the blower 24 sucks external air into the blowing air passage 23 through, for example, the rear panel 25, the deodorizing filter 26, and the dust collection filter 27, and blows out the sucked air. Blow out from mouth 23a.

(Operation and Advantages of Air Cleaner 21 and Ion Generator 1)
In the above configuration, the air purifier 21 draws air from the outside of the air purifier 21 through the rear panel 25 , the deodorizing filter 26 and the dust collecting filter 27 into the blowing air passage 23 when the blower 24 rotates. The air taken into the blow-out air passage 23 flows through the blow-out air passage 23 toward the blow-out port 23a and is blown out from the blow-out port 23a.

Further, when the ion generator 1 operates, discharge occurs between the positive discharge electrode 11 and the negative discharge electrode 12 and the induction electrode 16 . As a result, positive ions are generated at the tip of the positive discharge electrode 11 and negative ions are generated at the tip of the negative discharge electrode 12 . These positive and negative ions are blown out from the outlet 23a together with the air by the wind generated by the blower 24. FIG.

Here, the generated positive and negative ions are mixed with each other, recombined, neutralized, and extinguished. In this case, the ion concentration in the blowing air passage 23 decreases. However, in the ion generator 1, since the partition plate 14 exists between the positive discharge electrode 11 and the negative discharge electrode 12, the generated positive and negative ions are difficult to mix with each other, and the ion concentration of the positive and negative ions is reduced. can be suppressed.

Moreover, in the ion generator 1 , as described above, the partition plate 14 is provided between the positive discharge electrode 11 and the negative discharge electrode 12 , thereby reducing the distance between the positive discharge electrode 11 and the negative discharge electrode 12 . Even when the .mu.m is narrow, the generated positive and negative ions are less likely to mix with each other. Thereby, the ion generator 1 can be miniaturized by narrowing the distance between the positive side discharge electrode 11 and the negative side discharge electrode 12 .

On the other hand, in the ion generator 1 , since the partition plate 14 exists near the positive and negative discharge electrodes 11 and 12 , the generated positive and negative ions tend to adhere to the partition plate 14 . When the positive and negative ions adhere to the partition plate 14, the ion concentration is reduced accordingly. Therefore, the longer the partition plate 14 is on the downstream side of the air flow, the greater the decrease in the ion concentration due to adhesion of positive and negative ions to the partition plate 14 . However, in the ion generator 1, the downstream end of the partition plate 14 is the most downstream end of the electrode (the most downstream end of the positive and negative discharge electrodes 11 and 12 and the induction electrode 16). ) or on the upstream side of the most downstream end of the electrode. That is, in the ion generator 1, the downstream end of the partition plate 14 is made as short as possible to prevent the generated positive and negative ions from adhering to the partition plate 14 and reducing the ion concentration. be able to.

In addition, the electrode protection portion 15 is formed by connecting a bar-shaped horizontal member 15b and a bar-shaped vertical member 15c, and has no wall and a small surface area. can be suppressed from adhering to the electrode protection portion 15 and lowering the ion concentration.

Further, the electrode protection portion 15 and the partition plate 14 are provided to prevent other objects from colliding with the positive and negative discharge electrodes 11 and 12 from the upstream and downstream sides of the wind flow and from above. and the negative discharge electrodes 11 and 12 are protected. In addition, the electrode protection part 15 protects the positive and negative discharge electrodes 11 and 12 so that other objects do not collide with the positive and negative discharge electrodes 11 and 12 from the direction intersecting the flow of the wind. there is Thus, the partition plate 14 has a function of protecting the positive and negative discharge electrodes 11 and 12 in addition to the function as the partition plate 14 described above.

In addition, in this embodiment, the case where the discharge device is the ion generator 1 that generates positive and negative ions has been described. However, the discharge device is not limited to the ion generator 1, and generates a first discharge product by discharge between the positive side discharge electrode 11 and the induction electrode 16, and the negative side discharge electrode 12 and the induction electrode 16. A second discharge product may be generated by the discharge during the period. In this case, the first and second discharge products generated by the discharge device are positive and negative ions, positively or negatively charged fine particles of water (charged fine particle water), and complexes of charged fine particle water and active species. There may be. The configuration of such a discharge device is the same for the following other embodiments.

[Embodiment 2]
Another embodiment of the present invention will be described below based on the drawings. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

(Ion generator 2)
(a) of FIG. 5 is a front view of the ion generator 2 of this embodiment, and (b) of FIG. 5 is a plan view of the ion generator 2 .

As shown in FIG. 5, the ion generator 2 has electrode protection portions 15 between the partition plate 14 and the positive discharge electrode 11 and between the partition plate 14 and the negative discharge electrode 12. . That is, the positive and negative discharge electrodes 11 and 12 are surrounded by the electrode protectors 15 on both sides in the direction intersecting with the air flow direction. As a result, the ion generator 2 has a higher function of protecting the positive and negative discharge electrodes 11 and 12 by the electrode protection portion 15 than the ion generator 1 .

Other configurations of the ion generator 2 are the same as those of the ion generator 1 described above. Moreover, the operation and advantages of the air cleaner 21 and the ion generator 2 equipped with the ion generator 2 are the same as those of the air cleaner 21 and the ion generator 1 equipped with the ion generator 1 described above.

[Embodiment 3]
Still another embodiment of the present invention will be described below based on the drawings. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

(Ion generator 3, partition plate 14)
FIG. 6 is an explanatory diagram showing the positional relationship among the positive discharge electrode 11, the partition plate 14 and the induction electrode 16 of the ion generator 3 of this embodiment.

6 shows a state in which a high voltage is applied to the positive discharge electrode 11. FIG. As shown in FIG. 6, when a high voltage is applied to the positive discharge electrode 11, the tip becomes open. This is because the plurality of fibers forming the brush tend to separate from each other due to electrical repulsive force.

In the ion generator 3, the downstream ends of the positive and negative discharge electrodes 11 and 12 are located downstream of the induction electrode 16 when a high voltage is applied. Therefore, in the ion generator 3 , the downstream end of the partition plate 14 is located at the same position as the most downstream end of the electrode or upstream of the most downstream end of the electrode. When the ion generator 3 is used instead of the ion generator 1 , the air cleaner 21 shown in FIG. 4 includes the ion generator 3 instead of the ion generator 1 .

Other configurations of the ion generator 3 are the same as those of the ion generator 1 described above. In addition, the operation and advantages of the air cleaner 21 provided with the ion generator 3 and the ion generator 3 are the same as the operations and advantages of the air cleaner 21 provided with the ion generator 1 and the ion generator 1 described above. is.

[Embodiment 4]
Still another embodiment of the present invention will be described below based on the drawings. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

(Ion generator 4)
FIG. 7 is an explanatory diagram showing the positional relationship among the positive discharge electrode 11, the partition plate 14 and the induction electrode 16 of the ion generator 4 of this embodiment.

As shown in FIG. 7, the ion generator 4 includes needle-shaped positive discharge electrodes 11 instead of the brush-shaped positive discharge electrodes 11 shown in FIG. Although the negative discharge electrode 12 is not shown in FIG. 7, the negative discharge electrode 12 has the same structure as the positive discharge electrode 11. As shown in FIG.

The positive and negative discharge electrodes 11 and 12 can be appropriately selected to be brush-shaped or needle-shaped, and are not limited to brush-shaped or needle-shaped. This point also applies to the ion generators of other embodiments.

Other configurations of the ion generator 4 are the same as those of the ion generator 1 described above. Further, the operation and advantages of the air cleaner 21 provided with the ion generator 4 and the ion generator 4 are the same as those of the air cleaner 21 and the ion generator 1 provided with the ion generator 1 described above.

[Embodiment 5]
Still another embodiment of the present invention will be described below based on the drawings. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

(Configuration and advantages of ion generator 5 and electrode protection unit 31)
FIG. 8 is a perspective view showing the configuration of the ion generator 5 of this embodiment. As shown in FIG. 8, the ion generator 5 has an electrode protection section 31 instead of the electrode protection section 15 shown in FIG.

The electrode protection portions 31 are positioned at the upstream and downstream ends of the partition plate 14 with respect to the air flow, and connect two pairs of rod-shaped vertical members 31a and a pair of rod-shaped horizontal members 31b. formed by

Specifically, the upstream electrode protection portion 31 has a first vertical member 31a1, which is the upstream vertical member 31a, on the opposite side of the partition plate 14 with respect to the positive and negative discharge electrodes 11 and 12. are doing. The first horizontal member 31b1, which is the horizontal member 31b of the upstream electrode protection portion 31, extends from the upper end of the first vertical member 31a1 on the positive discharge electrode 11 side to the upper end of the first vertical member 31a1 on the negative discharge electrode 12 side. extends to the department.

Similarly, the downstream electrode protection portion 31 has a second vertical member 31a2, which is the downstream vertical member 31a, on the opposite side of the partition plate 14 with respect to the positive and negative discharge electrodes 11 and 12. there is The second horizontal member 31b2, which is the horizontal member 31b of the electrode protection portion 31 on the downstream side, extends from the upper end of the second vertical member 31a2 on the positive discharge electrode 11 side to the upper end of the second vertical member 31a2 on the negative discharge electrode 12 side. extends to the department. The first horizontal member 31b1 and the second horizontal member 31b2 are connected to the partition plate 14 at intermediate portions.

As with the partition plate 14 , the electrode protection portion 31 is higher than the upper ends of the positive and negative discharge electrodes 11 and 12 . Therefore, the electrode protection portion 31 and the partition plate 14 have the same function as the electrode protection portion 15 and the partition plate 14 of the ion generator 1 to protect the positive and negative discharge electrodes 11 and 12 . Since the electrode protection part 31 has the horizontal member 31b, it prevents other objects from colliding with the positive and negative discharge electrodes 11 and 12 from the upstream and downstream sides of the wind flow and from above. The prevention function is higher than that of the electrode protection portion 15 .

Also, the two electrode protection portions 31 and the partition plate 14 are connected by the horizontal member 31 b of the electrode protection portion 31 . Therefore, the electrode protection portion 31 and the partition plate 14 have higher strength than the electrode protection portion 15 and the partition plate 14 of the ion generator 1, and this also has a protective function for the positive and negative discharge electrodes 11 and 12. getting higher.

In addition, since the electrode protection portion 31 is formed by connecting the rod-shaped vertical member 31a and the rod-shaped horizontal member 31b, the upper surface of the housing portion 13, the area surrounded by the left and right vertical members 31a and the horizontal members 31b. (A region surrounded by the left and right first vertical members 31a1 and the first horizontal members 31b1, and a region surrounded by the left and right second vertical members 31a2 and the second horizontal members 31b2) are the openings 31c1. Thereby, the wind flowing on the upper surface of the housing part 13 can flow without being obstructed by the electrode protection part 31 .

Between the upstream side electrode protection portion 31 and the downstream side electrode protection portion 31, between the upstream side first vertical member 31a1 and the downstream side second vertical member 31a2, and between the upstream side first horizontal member 31a1 and the downstream side electrode protection portion 31a. An opening 31c2 is provided between the member 31b1 and the downstream side second horizontal member 31b2.

As described above, since the electrode protection portion 31 does not have a wall, it is possible to prevent the generated positive and negative ions from adhering to the electrode protection portion 31 and lowering the ion concentration.

Other configurations of the ion generator 5 are the same as those of the ion generator 1 described above. Further, the operations of the air cleaner 21 and the ion generator 5 provided with the ion generator 5 and other advantages of the ion generator 5 are the air cleaner 21 and the ion generator 1 provided with the ion generator 1 described above. is similar to

[Embodiment 6]
Still another embodiment of the present invention will be described below based on the drawings. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

(Configuration and advantages of ion generator 6 and electrode protection unit 32)
FIG. 9 is a perspective view showing the configuration of the ion generator 6 of this embodiment. As shown in FIG. 9, the ion generator 6 has an electrode protection section 32 in addition to the electrode protection section 15 shown in FIG.

The electrode protection portion 32 has the same length as the partition plate 14, and extends from the upper end of the partition plate 14 toward the positive and negative discharge electrodes 11 and 12 on the upper surface of the housing portion 13 (the upper surface of the resin layer 18). It is a member protruding parallel to the The electrode protection portion 32 has a plurality of openings 32a.

Since the ion generator 6 has the electrode protection part 32 in addition to the electrode protection part 15, the protection function for the positive and negative discharge electrodes 11 and 12 is higher than that of the ion generator 1. ing.

Other configurations of the ion generator 6 are the same as those of the ion generator 1 described above. Further, the operation of the air cleaner 21 and the ion generator 6 provided with the ion generator 6 and other advantages of the ion generator 6 are the air cleaner 21 and the ion generator 1 provided with the ion generator 1 described above. is similar to

[Embodiment 7]
Still another embodiment of the present invention will be described below based on the drawings. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

(Partition plate 41)
FIG. 10(a) is a front view of the ion generator 7 of this embodiment, and FIG. 10(b) is a plan view of the ion generator 7 shown in FIG. 10(a).

The ion generator 7 includes a partition plate (partition member) 41 instead of the partition plate 14 of the ion generator 1 . The partition plate 41 is located upstream of the position where the line connecting the center of the positive side discharge electrode 11 and the center of the negative side discharge electrode 12 intersects the partition plate 41 (hereinafter referred to as the wind direction discharge electrode position). is longer than the downstream portion. In addition, the partition plate 41 is wider at the downstream side than at the upstream side.

(Advantages of the ion generator 7)
In the above configuration, the partition plate 41 is longer in the upstream side than in the downstream side with respect to the positions of the discharge electrodes in the wind direction. You can stabilize the flow of the blowing wind. As a result, it is possible to prevent a situation in which positive and negative ions are mixed due to wind turbulence and the ion concentration decreases.

In addition, since the partition plate 41 has a wider width at the downstream side than at the upstream side, the wind passing through the positive and negative discharge electrodes 11 and 12 joins the partition plate 41 immediately after passing through the partition plate 41 . As a result, the position where positive and negative ions are mixed and the ion concentration is lowered can be moved to the downstream side, and as a result, high-concentration ions can be supplied to the room.

Note that the configuration of the partition plate 41 of the ion generator 7 can be similarly applied to other ion generators.

(Configuration example of induction electrode 16)
Next, various configuration examples of the induction electrode 16 will be described below.

(Configuration example 1)
FIG. 11 is a plan view showing a first structural example of the induction electrode 16. As shown in FIG. The induction electrode 16 shown in FIG. 11 is used, for example, in the ion generator 1 shown in FIG. The induction electrode 16 is formed of a conductor (for example, copper foil) on the electrode substrate 17 . Circular conductors are removed around the positive and negative discharge electrodes 11 and 12 to form non-electrode regions 19 .

The diameter of the non-electrode regions 19 around the positive and negative discharge electrodes 11, 12 is, for example, in the range of 5-20 mm. The conductor may be exposed on the surface of the induction electrode 16, or a resist may be applied to the surface. This point also applies to other configuration examples of the induction electrode 16 described below.

(Configuration example 2)
FIG. 12 is a plan view showing a second structural example of the induction electrode 16. As shown in FIG. In the configuration example shown in FIG. 12, the non-electrode region 19 is not completely circular, but is partially discontinuous. That is, the induction electrode 16 is partially discontinued around the non-electrode region 19 .

(Configuration example 3)
FIG. 13 is a plan view showing a third structural example of the induction electrode 16. As shown in FIG. The induction electrode 16 shown in FIG. 13 has ring-shaped portions 16a around the positive and negative discharge electrodes 11 and 12, respectively, and the ring-shaped portions 16a are connected to each other by a connecting portion 16c. A branch portion 16h is branched from the connection portion 16c, for example, perpendicularly to the connection portion 16c.

(Configuration example 4)
FIG. 14 is a plan view showing a fourth structural example of the induction electrode 16. As shown in FIG. The induction electrode 16 shown in FIG. 14 has ring-shaped portions 16b around the positive and negative discharge electrodes 11 and 12, respectively, and these ring-shaped portions 16b are connected to each other by a connecting portion 16c. A branch portion 16h is branched from the connection portion 16c, for example, perpendicularly to the connection portion 16c. The induction electrode 16 does not have a perfect ring shape, but is partially discontinued.

(Configuration example 5)
15(a) is a plan view showing a fifth configuration example of the induction electrode 16, and FIG. 15(b) is a front view of the induction electrode 16 shown in FIG. 15(a).

The induction electrode 16 shown in FIG. 15 has ring-shaped portions 16d around the positive and negative discharge electrodes 11 and 12, respectively. They are connected to each other by part 16e. The ring-shaped portion 16d and the connecting portion 16e are made of, for example, a conductive metal plate.

A leg portion 16 f is provided below the ring-shaped portion 16 d , and the leg portion 16 f is fixed on the electrode substrate 17 . Therefore, the ring-shaped portion 16 d and the connection portion 16 e are provided at a position higher than the upper surface of the electrode substrate 17 . In such a configuration, the distance between the upper ends of the positive and negative discharge electrodes 11 and 12 and the induction electrode 16 is reduced, and the distance between the upper ends of the positive and negative discharge electrodes 11 and 12 and the induction electrode 16 is reduced. discharge is likely to occur.

(Configuration example 6)
16(a) is a plan view showing a sixth configuration example of the induction electrode 16, and FIG. 16(b) is a front view of the induction electrode 16 shown in FIG. 16(a).

The induction electrode 16 shown in FIG. 16 has a configuration in which the connecting portion 16e is removed from the induction electrode 16 shown in FIG. Other configurations are the same as those of the induction electrode 16 shown in FIG.

(Configuration example 7)
FIG. 17(a) is a plan view showing a seventh configuration example of the induction electrode 16, and FIG. 17(b) is a front view of the induction electrode 16 shown in FIG. 17(a).

The induction electrode 16 shown in FIG. 17 has two positive-side discharge electrodes 11 and two negative-side discharge electrodes 12, and around each positive-side discharge electrode 11 and each negative-side discharge electrode 12, It has a ring-shaped portion 16d. The ring-shaped portions 16d around the positive discharge electrode 11 and the ring-shaped portions 16d around the negative discharge electrode 12 are connected to each other by a connecting portion 16e having a width corresponding to the diameter of the ring-shaped portion 16d. . Other configurations of the induction electrode 16 of this configuration example, such as the fact that the leg portion 16f is provided under the ring-shaped portion 16d, are the same as those of the induction electrode 16 shown in FIG.

(Verification of effect of partition plate)
Next, the result of verifying the effect of the partition plate will be described. (a) of FIG. 18 is a plan view showing the ion generator 8 used to verify the effect of the partition plate, (b) of FIG. 18 is a front view of the ion generator 8, and (c) of FIG. 3 is a side view of the ion generator 8; FIG. FIG. 19 is an explanatory diagram showing the measurement state of the ion concentration for verifying the effect of the partition plate. FIG. 20(a) is a front view showing the mounting state of the ion generator 8 in the device 51 shown in FIG. 19, and FIG. 20(b) is a cross-sectional view taken along line DD in FIG. 20(a).

(Conditions for measurement of ion concentration)
As shown in FIGS. 20(a) and 20(b), the ion generator 8 has the positive and negative discharge electrodes 11 and 12 arranged in the air passage 51a of the device 51 and the direction of the air passage 51a. mounted perpendicularly. As shown in FIG. 19, the ion concentration measurement point P was set at a point 350 mm downwind from the ion generator 8 .

As shown in FIGS. 18A and 18B, the ion generator 8 has an electrode protection section 31 similar to that of the ion generator 5 described above. As shown in FIG. 20(b), four types of partition plates 42a to 42d were used for the partition plates of the ion generator 8. As shown in FIG.

The partition plate 42a is a partition plate positioned between the positive discharge electrode 11 and the negative discharge electrode 12 and between the upstream portion and the downstream portion of the electrode protection portion 31 (hereinafter referred to as an electrode lateral partition plate). is called). The partition plate 42a has the same length on the windward side and the leeward side with respect to the position of the discharge electrode in the wind direction. As described above, the position of the discharge electrode in the wind direction is the position where the line connecting the center of the positive discharge electrode 11 and the center of the negative discharge electrode 12 intersects the partition plate 42a. Note that the downstream end of the partition plate 42 a is positioned substantially at the same position as the downstream end of the induction electrode 16 of the ion generator 8 .

The partition plate 42b is a partition plate (electrode horizontal + leeward partition plate) obtained by extending the partition plate 42a (electrode horizontal partition plate) toward the leeward side. The partition plate 42c is a partition plate (electrode side + windward partition plate) obtained by extending the partition plate 42a (electrode horizontal partition plate) toward the windward side. The partition plate 42d is a partition plate only on the windward side (windward partition plate) in a state in which the partition plate 42a (electrode horizontal partition plate) is removed from the partition plate 42c (electrode horizontal + windward partition plate).

(inspection result)
21A and 21B are explanatory diagrams showing verification results of the effect of the partition plate. In FIG. 21, in the ion generator 8, the ion concentration without the partition plate is used as a reference, and the ion concentration without the partition plate with the partition plate 42a, with the partition plate 42b, with the partition plate 42c, and with the partition plate 42d. It shows the ratio of ion concentration.

As can be seen from FIG. 21, the ion concentrations (positive and negative ion concentrations) at the measurement point P were higher in each case with the partition plates 42a to 42d than in the case without the partition plates. From this, it was found that it is effective for the ion generator 8 to have any one of the partition plates 42a to 42d in order to increase the ion concentration.

When the partition plate 42a was used as a reference, the ion concentration decreased when the partition plate 42b and the partition plate 42d were provided, and the ion concentration increased when the partition plate 42c was provided. As a result, it was found that lengthening the windward side of the partition plate 42a, that is, the partition plate 42c is effective in increasing the ion concentration.

[Embodiment 8]
Still another embodiment of the present invention will be described below based on the drawings. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

FIG. 22 is a longitudinal sectional view showing the configuration of an air cleaner 61 as an air conditioner of this embodiment. 23 is a perspective view showing an ion generator 71 attached to the air cleaner 61 shown in FIG. 22. FIG.

(Configuration of ion generator 71)
As shown in FIG. 22 , an air purifier (equipment to which a discharge device can be attached) 61 has an ion generator 71 attached to the air outlet 23 . As shown in FIG. 23, the ion generator 71 has a configuration in which the partition plate 14 is removed from the ion generator 1 shown in FIG. Other configurations of the ion generator 71 are the same as those of the ion generator 1 . In addition, the ion generator 71 is not limited to the configuration in which the partition plate 14 is removed from the ion generator 1, but the configuration in which the partition plate 14 is removed from the ion generators 2 to 6, or the ion generator 7 Any configuration in which the partition plate 41 is removed may be used. This point also applies to the following other embodiments.

(Configuration of air cleaner 61)
FIG. 24 is a perspective view showing a state in which the ion generator 71 is attached to the air outlet 23 of the air cleaner 61. As shown in FIG. FIG. 25(a) is a plan view of the state of FIG. 24, and FIG. 25(b) is a plan view showing the configuration of the device mounting portion 81 of the air outlet 23 shown in FIG. 25(a). .

As shown in (b) of FIG. 25 , the air outlet 23 of the air purifier 61 has a device mounting portion 81 . The device mounting portion 81 has a device mounting hole 82 and a partition plate 83 . The device mounting hole 82 is opened through a side wall (peripheral wall) of the blowout air passage 23 .

As shown in FIGS. 24 and 25(a), the ion generating device 71 is mounted in the device mounting hole 82 from the rear surface of the air outlet 23. As shown in FIGS. Specifically, the electrode protection portion 15 and the positive and negative discharge electrodes 11 and 12 of the ion generator 71 are mounted in the device mounting hole 82 . As a result, the electrode protection portion 15 and the positive and negative discharge electrodes 11 and 12 protrude into the airflow passage 23 when the ion generator 71 is attached to the airflow passage 23 .

The partition plate 83 is provided on the windward side of the device mounting hole 82 . The partition plate 83 is a plate-like member that is higher than the positive and negative discharge electrodes 11 and 12 and whose longitudinal direction is parallel to the direction of air flow in the blowing air passage 23 . The center of the partition plate 83 in the width direction is located between the positive discharge electrode 11 and the negative discharge electrode 12 of the ion generator 71 mounted in the device mounting hole 82 . The width of the partition plate 83 on the downstream side of the airflow is wider than that on the upstream side. In addition, the partition plate 83 extends to the vicinity of the upstream end of the device mounting hole 82 at the downstream end of the air flow. Other configurations of the air cleaner 61 are the same as those of the air cleaner 21 .

(Operation and Benefits of Air Cleaner 61)
In the configuration described above, the basic operation of the air cleaner 61 is the same as that of the air cleaner 21 described above.

The air cleaner 61 has a device mounting portion 81 to which the ion generator 71 can be attached and detached. As a result, the air purifier 61 can be easily operated when the ion generator 71 attached to the device attachment portion 81 needs to be serviced.

Also, the air cleaner 61 has a partition plate 83 in the device mounting portion 81 . Thereby, the ion generator 71 does not need to have the partition plate 83, and can simplify a structure.

In addition, when the ion generator 71 is attached to the device attachment portion 81, the partition plate 83 extends upstream of the flow of air to the positive and negative discharge electrodes 11 and 12. It is possible to stabilize the flow of air blowing to the discharge electrodes 11 and 12 . As a result, it is possible to prevent a situation in which positive and negative ions are mixed due to wind turbulence and the ion concentration decreases.

Furthermore, since the partition plate 83 is wider at the downstream side of the air flow than at the upstream side, it promotes stabilization of the air flow that blows against the positive and negative discharge electrodes 11 and 12. do.

The downstream end of partition plate 83 extends to the vicinity of the upstream end of device mounting hole 82 and is located upstream of positive and negative discharge electrodes 11 and 12 . As a result, it is possible to prevent the positive and negative ions generated from the positive and negative discharge electrodes 11 and 12 from lowering the ion concentration in the partition plate 83 .

In the air cleaner 61 of the present embodiment, the ion generator 71 is directly attached to the device attachment portion 81 of the air outlet 23 . However, even if the air cleaner 61 is provided with a mounting aid, the ion generator 71 is mounted on the mounting aid, and the mounting aid with the ion generator 71 mounted thereon is mounted on the blowout air passage 23. good. In this case, the mounting aid has a configuration of a device mounting portion 81 having a device mounting hole 82 and a partition plate 83 , and an opening for mounting the mounting aid is provided in the air outlet 23 . This point also applies to the following other embodiments.

[Embodiment 9]
Still another embodiment of the present invention will be described below based on the drawings. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

(Configuration of air cleaner 62)
FIG. 26 is a plan view showing the configuration of the device mounting portion 84 of the air outlet 23 in the air cleaner 62 as the air conditioner of this embodiment.

The air cleaner 62 of this embodiment has a device mounting portion 84 in place of the device mounting portion 81 described above. The device mounting portion 84 has the device mounting hole 82 and a partition plate 85 that replaces the partition plate 83 .

The downstream end of the partition plate 85 with respect to the flow of air extends further downstream than between the positive discharge electrode 11 and the negative discharge electrode 12 when the ion generator 71 is mounted on the device mounting portion 84 . there is Specifically, like the partition plate 14, the partition plate 85 is positioned between the positive discharge electrode 11 and the negative discharge electrode 12, and the downstream end of the partition plate 85 is the most downstream end of the electrode. It exists at the same position as (the most downstream end of the downstream ends of the positive and negative discharge electrodes 11 and 12 and the induction electrode 16) or upstream of the most downstream end of the electrode.

Other configurations of the partition plate 85 and the device mounting portion 84 are the same as those of the partition plate 83 and the device mounting portion 81 , and other configurations of the air cleaner 62 are the same as those of the air cleaner 61 .

(Air Purifier 62 Operation and Benefits)
In the configuration described above, the basic operation of the air cleaner 62 is the same as that of the air cleaner 21 described above.

In the air cleaner 62, the downstream end of the partition plate 85 is the most downstream end of the positive and negative discharge electrodes 11 and 12 and the downstream end of the induction electrode 16. or upstream of the most downstream end of the electrode. The advantages of the air cleaner 62 from this are similar to the advantages of the partition plate 14 from such a configuration, as described below.

That is, in the air purifier 62, the presence of the partition plate 85 between the positive discharge electrode 11 and the negative discharge electrode 12 prevents the generated positive and negative ions from mixing with each other. can be suppressed.

In the air purifier 62, the partition plate 85 exists between the positive discharge electrode 11 and the negative discharge electrode 12, so that the positive discharge electrode 11 and the negative discharge electrode 12 of the ion generator 71 used are separated from each other. , the ion generator 71 can be miniaturized.

In the air purifier 62, the downstream end of the partition plate 85 is located at the same position as the most downstream end of the electrode or upstream of the most downstream end of the electrode, so that the generated positive and negative ions are separated. It is possible to suppress a situation in which the ion concentration is lowered by adhering to the plate 85 . Other advantages of air cleaner 62 are similar to air cleaner 61 described above.

〔summary〕
A discharge device according to aspect 1 of the present invention includes a housing, first and second discharge electrodes protruding from an upper surface of the housing, and a third electrode, wherein the first and second discharge electrodes and the third In a discharge device that generates first and second discharge products by discharge between three electrodes, the first and second discharge electrodes have a height between the first discharge electrode and the second discharge electrode. A partition member higher than the upper end portion is provided, and the partition member is arranged in a direction intersecting with the direction in which the first and second discharge electrodes are arranged and in parallel with the direction of air flow, which is the direction along the upper surface of the housing. provided, and the downstream end of the wind flow is at the same position as the most downstream end of the electrode existing most downstream of the downstream ends of the first and second discharge electrodes and the third electrode. Alternatively, it exists upstream of the most downstream end of the electrode.

A discharge device according to aspect 2 of the present invention is the electrode protection device according to aspect 1, which is formed by connecting a bar-shaped horizontal member and a vertical member, and has a height higher than the upper end portions of the first and second discharge electrodes. The electrode protection part includes a first vertical member on the upstream side of the airflow and a second vertical member on the downstream side of the flow of the wind, at positions opposite to the partition member with respect to the first and second discharge electrodes. , and the upstream and downstream directions of the flow of the wind, the upper direction, and the direction opposite to the partition member with respect to the first and second discharge electrodes are open.

In the discharge device according to aspect 3 of the present invention, in the above aspect 2, the electrode protection portion extends from the upper end of the first vertical member on the first discharge electrode side to the first vertical member on the second discharge electrode side. A first horizontal member, which is the horizontal member, extending to an upper end, and an upper end of the second vertical member on the side of the first discharge electrode to an upper end of the second vertical member on the side of the second discharge electrode. There may be an extending second cross member, said cross member, said first and second cross members being connected to said partition member.

A discharge device according to Aspect 4 of the present invention is the discharge device according to any one of Aspects 1 to 3, wherein the partition member has a line connecting the center of the first discharge electrode and the center of the second discharge electrode. The upstream portion of the wind flow may be longer than the downstream portion with respect to the position where the member intersects.

In the discharge device according to aspect 5 of the present invention, in any one of aspects 1 to 4, the width of the partition member is wider at the downstream side of the wind flow than at the upstream side. may be configured.

A device according to aspect 6 of the present invention includes the discharge device according to any one of aspects 1 to 5 above.

1 to 7 ion generator (discharge device)
11 positive discharge electrode (first discharge electrode)
12 negative discharge electrode (second discharge electrode)
13 housing parts 14, 41 partition plate (partition member)
15, 31, 32 Electrode protection portions 15a, 31c Openings 15b, 31b Horizontal members 15c, 31a Vertical members 15c1, 31a1 First vertical members 15c2, 31a2 Second vertical member 16 Induction electrode (third electrode)
21 Air purifier (equipment)
22 housing 23 blowing air passage (air passage)
23a Air outlet 24 Blower 31b1 First horizontal member 31b2 Second horizontal member 51 Devices 61, 62 Air cleaner 71 Ion generators 81, 84 Device mounting portion 82 Device mounting holes 83, 85 Partition plate

Claims (6)

a housing;
first and second discharge electrodes projecting from the upper surface of the housing;
a third electrode;
In a discharge device that generates first and second discharge products by discharge between the first and second discharge electrodes and the third electrode,
A partition member having a height higher than the upper end portions of the first and second discharge electrodes is provided between the first discharge electrode and the second discharge electrode,
The partition member is provided in a direction intersecting the direction in which the first and second discharge electrodes are arranged and in parallel with the direction of air flow, which is the direction along the upper surface of the housing, and is provided at the downstream end of the air flow. is at the same position as the most downstream end of the first and second discharge electrodes and the most downstream end of the third electrode or upstream of the most downstream end of the electrode. A discharge device, characterized in that it exists on the side of the discharge device. An electrode protection part formed by connecting a bar-shaped horizontal member and a vertical member and having a height higher than the upper ends of the first and second discharge electrodes,
The electrode protection part has at least a first vertical member on the upstream side of the air flow and a second vertical member on the downstream side of the air flow, on the opposite side of the partition member with respect to the first and second discharge electrodes. ,
2. The discharge device according to claim 1, wherein the upstream direction, the downstream direction, the upward direction, and the direction opposite to the partition member with respect to the first and second discharge electrodes are open. The electrode protection portion is a first horizontal member, which is the horizontal member, extending from an upper end portion of the first vertical member on the first discharge electrode side to an upper end portion of the first vertical member on the second discharge electrode side. , and a second horizontal member, which is the horizontal member, extending from the upper end of the second vertical member on the first discharge electrode side to the upper end of the second vertical member on the second discharge electrode side. ,
3. The discharge device according to claim 2, wherein said first and second horizontal members are connected to said partition member. The partition member is positioned closer to the upstream side than the downstream portion of the air flow with respect to the position where the line connecting the center of the first discharge electrode and the center of the second discharge electrode intersects the partition member. 4. The discharge device according to any one of claims 1 to 3, wherein . 5. The discharge device according to any one of claims 1 to 4, wherein the width of the partition member is wider at the downstream side of the air flow than at the upstream side. A device comprising the discharge device according to any one of claims 1 to 5.

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