TW201830813A - Discharge electrode - Google Patents

Abstract

This discharge electrode (1) comprises a cylindrical joining section (7a), and a plurality of string-shaped electric conductors (7). The electric conductors (7) have base end portions (25), which are bundled by the joining section (7a). Each of the base end portions (25) is disposed obliquely with respect to the axial direction (DR1) of the joining section (7a).

Description

Discharge electrode

The present invention relates to a discharge electrode. This application claims priority based on Japanese Patent Application No. 2017-023997 filed on February 13, 2017. All the contents described in this Japanese patent application are incorporated herein by reference.

Japanese Patent Application Laid-Open No. 2003-229232 (Patent Document 1) discloses an electrode including a metal tube and a carbon fiber bundle, and a carbon fiber bundle is pressure-bonded and fixed to one end of the metal tube.

Patent Document 1: Japanese Patent Application Laid-Open No. 2003-229232

When a discharge electrode provided in an ion generator or the like is used for a long period of time, foreign matter such as dust in the air adheres to the front end portion of the discharge electrode over time, preventing the discharge.

An object of the present invention is to provide a discharge electrode capable of suppressing interference of discharge.

The discharge electrode of the present invention includes a cylindrical bonding portion and a plurality of wire-shaped conductors. Each of the plurality of electrical conductors has a root element bundled by a joint portion. The root element portion is arranged to be inclined with respect to the axial direction of the joint portion.

According to the above-mentioned discharge electrode, it is possible to reduce the amount of adhesion of foreign matter to the discharge electrode, and it is possible to suppress the interference of discharge caused by the adhesion of the foreign matter.

In the discharge electrode described above, the joint portion has an inner peripheral surface. The root element portion arranged closer to the inner peripheral surface has a larger inclination than the root element portion arranged farther from the inner peripheral surface.

According to the above-mentioned discharge electrode, it is possible to reduce the amount of adhesion of foreign matter to the discharge electrode, and it is possible to suppress the interference of discharge caused by the adhesion of the foreign matter.

In the discharge electrode described above, the joint portion has an inner peripheral surface. A guide extending obliquely with respect to the axial direction is formed on the inner peripheral surface. Thereby, the amount of adhesion of the foreign matter to the discharge electrode can be reliably reduced, and the obstruction of discharge due to the adhesion of the foreign matter can be suppressed.

In the discharge electrode described above, the front end surface of the conductor is inclined with respect to the longitudinal direction of the conductor. Thereby, discharge can be performed with high efficiency.

The discharge electrode is provided with a cylindrical large-diameter portion that surrounds at least one of the conductor and the joint portion and has an outer diameter larger than the outer diameter of the joint portion. This makes it possible to miniaturize the discharge electrode.

In the discharge electrode described above, the large-diameter portion surrounds the joint portion. Thereby, the discharge electrode can be miniaturized while ensuring a high-efficiency discharge effect.

In the discharge electrode described above, the bonding portion has an end portion where the conductor protrudes from the bonding portion. The large diameter portion is provided at the end. This makes it possible to reduce the size of the discharge electrode while ensuring a high-efficiency discharge effect.

According to the present invention, a discharge electrode capable of suppressing the interference of discharge can be realized.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the embodiments described below, the same or common parts are given the same reference numerals in the drawings, and descriptions thereof will not be repeated.

(Embodiment 1) (Ion generating device) Fig. 1 is a perspective view showing an ion generating device provided with discharge electrodes 1, 2 according to a first embodiment of the present invention. FIG. 2 is a plan view of the ion generating device shown in FIG. 1. 3 is a cross-sectional view of the ion generating device taken along a line III-III shown in FIG. 1. First, the structure of the ion generating device will be described in detail with reference to FIGS. 1 to 3.

The ion generating device includes two discharge electrodes 1, 2, ring-shaped induction electrodes 3, 4, and two rectangular printed substrates 5, 6. The induction electrode 3 is an electrode for forming an electric field with the discharge electrode 1. The sensing electrode 4 is an electrode for forming an electric field between the sensing electrode 4 and the discharge electrode 2. The discharge electrode 1 is an electrode for generating positive ions between the discharge electrode 1 and the induction electrode 3. The discharge electrode 2 is an electrode for generating negative ions between the discharge electrode 2 and the induction electrode 4.

The printed substrates 5 and 6 are arranged parallel to each other in a vertical direction in FIG. 3 with a predetermined interval therebetween. The sensing electrode 3 is formed on the surface of one end portion in the longitudinal direction of the printed substrate 5 using a wiring layer of the printed substrate 5. A hole 5 a is formed inside the sensing electrode 3 and penetrates the printed substrate 5. The sensing electrode 4 is a surface formed on the other end portion in the longitudinal direction of the printed substrate 5 using a wiring layer of the printed substrate 5. A hole 5 b penetrating the printed circuit board 5 is provided inside the sensing electrode 4. The sensing electrodes 3 and 4 are formed at low cost by the wiring layer of the printed substrate 5, thereby reducing the manufacturing cost of the ion generating device.

The sensing electrodes 3 and 4 may be formed without using the wiring layer of the printed substrate 5. The sensing electrodes 3 and 4 may be formed of a metal plate, respectively. In addition, each of the sensing electrodes 3 and 4 need not be circular.

FIG. 4 is a perspective view of the vicinity of a front end portion of the discharge electrode 1. The discharge electrode 1 includes a cylindrical joint portion 7 a and a plurality of wire-like conductors 7. The joint portion 7a extends in the axial direction DR1. The axial direction DR1 is a direction along the axis of the cylindrical joint portion 7a. The bonding portion 7 a bundles a plurality of electrical conductors 7. The joint portion 7 a has an end portion 21. A plurality of conductors 7 protrude from the end portion 21. The plurality of conductors 7 penetrate the joint portion 7a. The front end portions of the plurality of conductors 7 are formed in a brush shape.

The conductor 7 is formed of a conductive material. The conductor 7 may be made of metal, carbon fiber, conductive fiber, or conductive resin, for example. The outer diameter of each conductor 7 is 5 μm or more and 30 μm or less. By setting the thickness of the conductor 7 to 5 μm or more, it is possible to ensure the mechanical strength of the conductor 7 and to suppress the electrical abrasion of the conductor 7. When the thickness of the conductive body 7 is 30 μm or less, the conductive body 7 that is bent like hair can be formed, and it is easy for the conductive body 7 to swell and swing.

The conductive body 7 may be a carbon fiber having an outer diameter of 7 μm, or an SUS conductive fiber having an outer diameter of 12 μm or 25 μm.

When the length of the length of the conductive body 7 protruding from the joint portion 7a is too short, the conductive body 7 is not easily deflected. Therefore, the expansion and swing of the conductive body 7 becomes small, and high-efficiency discharge cannot be performed. Therefore, the length of the conductor 7 protruding from the joint portion 7a is 3 mm or more. The conductor 7 may protrude from the joint portion 7a by 4.5 mm or more.

The joint portion 7a is provided with a support portion 11 that supports the joint portion 7a. The support portion 11 extends in the axial direction DR1. The support portion 11 is formed on the side opposite to the front end portion of the conductor 7 with respect to the joint portion 7 a.

As shown in FIG. 3, each of the discharge electrodes 1 and 2 is disposed perpendicularly to the printed substrates 5 and 6. The support portion 11 provided in the joint portion 7 a of the discharge electrode 1 is inserted into a hole fitted in the printed circuit board 6 and penetrates the hole 5 a of the printed circuit board 5. The support portion 12 provided in the joint portion 8 a of the discharge electrode 2 is inserted into a hole fitted in the printed substrate 6 and penetrates the hole 5 b of the printed substrate 5. The root element of each of the discharge electrodes 1, 2 is fixed to the printed circuit board 6 by solder.

The ion generating device includes a rectangular parallelepiped case 10 having a rectangular opening portion larger than the printed substrates 5 and 6, a circuit board 16, a circuit component 17, and a transformer 18.

The case 10 is formed of an insulating resin. The lower portion of the casing 10 is formed smaller than the upper portion. A step is formed on the inner wall of the casing 10 at the boundary between the upper and lower portions of the casing 10. The lower portion of the casing 10 is divided into two by the partition plate 10 a in the longitudinal direction. The transformer 18 is housed on the bottom of one side of the partition plate 10a. The circuit substrate 16 is provided on the partition plate 10a and the step to close the space on the other side of the partition plate 10a. The circuit component 17 is mounted on the lower surface of the circuit board 16 and is housed in a space on the other side of the partition plate 10a.

The printed substrates 5 and 6 are accommodated horizontally in the upper part of the casing 10. The circuit substrate 16 and the transformer 18 are electrically connected to the printed substrates 5 and 6 through wiring. An insulating material 19 such as resin is filled up to the opening of the case 10. The sensing electrodes 3 and 4 are sealed by an insulating material 19. Each of the discharge electrodes 1, 2 protrudes from the insulating material 19.

In addition, the circuit parts 17 connected to the primary side of the transformer 18 do not need to be insulated by the insulating material 19, so the space on the other side of the partition plate 10 a is not filled with the insulating material 19.

(Circuit Diagram) FIG. 5 is a circuit diagram showing a configuration of the ion generating apparatus shown in FIG. 1. The ion generator includes, in addition to the discharge electrodes 1, 2 and the induction electrodes 3, 4, a power terminal T1, a ground terminal T2, diodes 32, 33, and a step-up transformer 31. Parts other than the discharge electrodes 1 and 2 and the induction electrodes 3 and 4 in the circuit of FIG. 5 are configured by a circuit board 16, a circuit part 17, a transformer 18, and the like in FIG. The brush-shaped conductors 7 and 8 constituting the discharge electrode 1 are not shown in FIG. 5.

A positive terminal and a negative terminal of a DC power supply are connected to the power terminal T1 and the ground terminal T2, respectively. A DC power supply voltage (for example, + 12V or + 15V) is applied to the power terminal T1, and the ground terminal T2 is grounded. The power terminal T1 and the ground terminal T2 are connected to the step-up transformer 31 through the power circuit 30.

The step-up transformer 31 includes a primary winding 31 a and a secondary winding 31 b. One terminal of the secondary winding 31 b is connected to the sensing electrodes 3 and 4, and the other terminal is connected to the cathode of the diode 32 and the anode of the diode 33. The anode of the diode 32 is connected to the junction 7a of the discharge electrode 1, and the cathode of the diode 33 is connected to the junction 8a of the discharge electrode 2.

Next, the operation of this ion generating device will be described. When a DC power supply voltage is applied between the power terminal T1 and the ground terminal T2, the electric charges are charged to a capacitor (not shown) included in the power circuit 30. The electric charge charged to the capacitor is discharged through the primary winding 31a of the step-up transformer, and a pulse voltage is generated in the primary winding 31a.

When a pulse voltage is generated in the primary winding 31a, positive and negative high voltage pulses are generated in the secondary winding 31b while being attenuated alternately. A positive high-voltage pulse is applied to the discharge electrode 1 through the diode 32, and a negative high-voltage pulse is applied to the discharge electrode 2 through the diode 33. As a result, the electric conductors 7 and 8 at the front ends of the discharge electrodes 1, 2 generate a corona discharge, and generate positive ions and negative ions, respectively.

The positive ion is a cluster ion in which a plurality of water molecules are clustered around a hydrogen ion (H ⁺ ), and is expressed as H ⁺ (H ₂ O) _m (m is an integer of 0 or more). A plurality of water molecules is negative oxygen ion (O ₂ ^-) clustered around the cluster ion, expressed as _{^{O 2 - (H 2 O)}} n (n is an integer of 0 or any easily).

In addition, when positive ions and negative ions are released into the room, the two ions surround a mold or virus suspended in the air, and chemical reactions occur on the surfaces of the two ions. By the action of the hydroxide radical (· OH) of the active species generated at this time, suspended molds and the like are removed.

(Discharge Electrode 1) The discharge electrode 1 applicable to the ion generating device described with reference to FIGS. 1 to 5 will be described in detail. Although the discharge electrode 1 of the two discharge electrodes 1 and 2 of the ion generator is exemplified, the discharge electrode 2 also has the same configuration as the discharge electrode 1.

FIG. 6 is a schematic view of a cross section of the discharge electrode 1 along a VI-VI line shown in FIG. 4. The plurality of conductors 7 are simplified and described in FIG. 6. Each of the plurality of electrical conductors 7 has a root element portion 25 bundled by the joining portion 7 a. The root element 25 is a portion (a region between two-dot chain lines in FIG. 6) surrounded by the joint portion 7 a in the conductor 7. The root element portion 25 is arranged to be inclined with respect to the axial direction DR1.

When the root element 25 is inclined with respect to the axial direction DR1, the conductor 7 protrudes obliquely from the end portion 21 with respect to the axial direction DR1. Thereby, the front-end | tip part of the discharge electrode 1 becomes the shape which spreads like a brush. When the front ends of the plurality of conductors 7 are spread in a brush shape, the area of the region where the front ends of the conductors 7 shown in FIG. 4 exists is a section of the plurality of conductors 7 on a plane orthogonal to the axial direction DR1. The total area is more than 30 times.

Since the front end portions of the plurality of conductors 7 are brush-shaped outwardly, the distance between the front end portions of the conductors 7 is widened, so that foreign matter adhering to the front end portions of the conductors 7 is not easily integrated. Since the conductive body 7 is easy to swing, foreign matter can be easily removed from the conductive body 7. Foreign matter is easily detached from the discharge electrode 1. As a result, by reducing the amount of foreign matter adhering to the front end portion of the discharge electrode 1, it is possible to suppress the obstruction of discharge due to foreign matter adhesion. Furthermore, the cleaning cycle of the discharge electrode 1 can be made longer, and the maintainability of the discharge electrode 1 can be improved.

As shown in FIG. 6, the cylindrical joint portion 7 a has an inner peripheral surface 22. Let the angle of the root element portion 25a far from the inner peripheral surface 22 with respect to the axial direction DR1 be θ1, and the angle of the root element portion 25b close to the inner peripheral surface 22 with respect to the axial direction DR1 be θ2, then θ1 <θ2.

As the inclination of the root element portion 25 with respect to the axial direction DR1 closer to the inner peripheral surface 22 is arranged, the front end portion of the discharge electrode 1 spreads out in a brush-like manner. The spaced-apart region of the front end portion of 7 increases. Foreign matter adhering to the front end portion of the conductive body 7 is not easily integrated in a wide-spaced region of the front end portion of the conductive body 7. Therefore, it is possible to further reduce the amount of adhesion of foreign matter to the front end portion of the discharge electrode 1, and it is possible to further suppress the interference of discharge caused by adhesion of the foreign matter.

FIG. 7 is an enlarged view of a front end portion of one conductor 7. The electrical conductor 7 has a front end surface 20. The front end surface 20 is inclined with respect to the longitudinal direction DR2 of the conductor 7. For example, when the conductor 7 is cylindrical, the front end surface 20 is oval. When the front end surface 20 is inclined with respect to the longitudinal direction DR2, the front end portion of the conductor 7 becomes sharp.

FIG. 8 (A) is a diagram showing one conductor 7 before the front end portion is cut. FIG. 8 (B) is a diagram showing one conductor 7 with the front end portion cut out. After the plurality of electrical conductors 7 are bundled with the joint portion 7a, the front end portions of the plurality of electrical conductors 7 are aligned on a plane P orthogonal to the axial direction DR1 shown in FIG. 8 (A). As shown in FIG. 6, as the root element portion 25 is arranged closer to the conductor 7 on the inner peripheral surface 22, the tip portion is inclined with respect to the axial direction DR1. Therefore, as in the portion surrounded by the circle in FIG. 8 (B), the front end portion of the conductor 7 is sharpened. The tip of the conductor 7 is sharpened, so that discharge can be performed with high efficiency.

FIG. 9 is a schematic view of a developed portion 7a of the first embodiment. The joint portion 7 a includes a convex portion 23 and a concave portion 24. As shown in FIG. 4, when the plurality of conductors 7 are bundled by the joint portion 7 a, the plurality of conductors 7 are surrounded by the joint portion 7 a and the convex portion 23 and the concave portion 24 are fitted.

The inner peripheral surface 22 is formed with a guide 15 extending obliquely with respect to the axial direction DR1. In the first embodiment, the guide 15 is acre-shaped. The mu-shaped guide 15 has a convex shape with respect to the inner peripheral surface 22.

The cross-sectional shape of a mu on a plane orthogonal to the axial direction DR1 may be an arc shape, or may be a polygonal shape such as a triangular shape or a quadrangular shape.

With the guide 15 formed, the root element 25 shown in FIG. 6 is arranged along the acre-shaped guide 15. Therefore, the root element portion 25 does have an inclination with respect to the axial direction DR1. Thereby, the front-end | tip part of the discharge electrode 1 is reliably spread outward in a brush shape, and the interference of the discharge by adhesion of a foreign material can be suppressed.

(Embodiment 2) FIG. 10 is a schematic diagram of the joint part 7a of Embodiment 2 after development. Unlike the mu-shaped guide 15 of the first embodiment, in the second embodiment, the groove-shaped guide 15 extends obliquely with respect to the axial direction DR1. The groove-shaped guide 15 is recessed with respect to the inner peripheral surface 22. When the root element portion 25 shown in FIG. 7 is arranged to fit in the groove, the root element portion 25 is inclined with respect to the axial direction DR1. The cross-sectional shape of the groove on a plane orthogonal to the axial direction DR1 may be an arc shape, or a polygonal shape such as a triangular shape or a quadrangular shape.

In the bonding portion 7a of the second embodiment, similarly to the bonding portion 7a of the first embodiment, the effect of suppressing the prevention of the discharge caused by the adhesion of the foreign matter at the distal end portion of the discharge electrode 1 can be obtained.

(Embodiment 3) FIG. 11 is a schematic view after the joining part 7a of Embodiment 3 is developed. Unlike the mu-shaped guide 15 of the first embodiment, in the third embodiment, the inclined surfaces 34 extending obliquely with respect to the axial direction DR1 are connected in a stepwise manner to form the guide 15. When the root element 25 shown in FIG. 7 is arranged along the inclined surface 34, the root element 25 is inclined with respect to the axial direction DR1.

In the bonding portion 7a of the third embodiment, similarly to the bonding portion 7a of the first embodiment, the effect of suppressing the prevention of the discharge caused by the adhesion of the foreign matter at the distal end portion of the discharge electrode 1 can be obtained.

(Embodiment 4) FIG. 12 is a schematic view of the joint portion 7a in Embodiment 4 after development. Unlike the mu-shaped guide 15 of the first embodiment, in the fourth embodiment, the protrusions 26 are arranged obliquely with respect to the axial direction DR1 to form the guide 15. By arranging the root element portion 25 shown in FIG. 7 along the protruding portion 26, the root element portion 25 is inclined with respect to the axial direction DR1.

In the bonding portion 7a of the fourth embodiment, similarly to the bonding portion 7a of the first embodiment, the effect of suppressing the prevention of the discharge caused by the adhesion of the foreign matter at the front end portion of the discharge electrode 1 can be obtained.

(Embodiment 5) Hereinafter, Embodiment 5 of the present invention will be described in detail with reference to the drawings. Fig. 13 is a perspective view showing an ion generating device provided with discharge electrodes 1, 2 according to a fifth embodiment of the present invention. FIG. 14 is a plan view of the ion generating device shown in FIG. 13. FIG. 15 is a cross-sectional view of the ion generating device taken along the line XV-XV shown in FIG. 13. The configuration other than the discharge electrode 1 is the same as the configuration of the ion generating device described with reference to FIGS. 1 to 5.

(Large-diameter portion 27) FIG. 16 is a schematic view showing a discharge electrode 1 provided with a large-diameter portion 27 according to the fifth embodiment. The cylindrical large-diameter portion 27 has a larger outer diameter than the joint portion 7a. The large-diameter portion 27 surrounds the joint portion 7a. The large-diameter portion 27 is provided at the end portion 21.

The large-diameter portion 27 has an end edge portion having an outer diameter of the large-diameter portion 27, that is, the outer diameter edge 29. The outer diameter edge 29 is formed on the front end side of the conductor 7.

When a high voltage is applied to the discharge electrode 1, one or more of the conductors 7 are electrically attracted to the opposite electrode shown in FIG. 15, that is, the induction electrode 3, and may be greatly bent on the induction electrode 3 side. Since the induction electrode 3 is disposed on the insulating material 19 side with respect to the conductor 7, the conductor 7 is bent toward the insulating material 19.

When the bent conductor 7 comes into contact with the insulating material 19, a defect such as abnormal discharge occurs. Therefore, in the conventional discharge electrode, the root element is set such that the root element length (equivalent to L2 in FIG. 12) is larger than the brush length (equivalent to L1 in FIG. 12) even if the conductive body is bent. long.

By providing the large-diameter portion 27 on the discharge electrode 1, even if a high voltage is applied to the discharge electrode 1 and the conductor 7 is greatly bent, the conductor 7 is bent at the end portion 21 and the conductor 7 is bent through the outer diameter edge 29 . Therefore, even if the root element length L2 is set smaller than the brush length L1, the bent conductor 7d does not come into contact with the insulating material 19. Thereby, the size of the discharge electrode 1 can be reduced.

Furthermore, by providing the large-diameter portion 27 so as to surround the joint portion 7 a, the plurality of electrical conductors 7 can prevent the large-diameter portion 27 from spreading in a brush shape when current is applied. By spreading the conductive body 7 in a brush shape, it is possible to suppress the interference of the discharge caused by the adhesion of the foreign matter, so that a high-efficiency discharge effect can be ensured.

FIG. 17 is a diagram showing an example of the large-diameter portion 27 of the fifth embodiment. The joint portion 7 a is provided with a large-diameter portion 27 extending in a flange-like manner from the end portion 21. By adopting a ring-shaped metal-shaped component in which the large-diameter portion 27 and the joint portion 7a are integrated into the discharge electrode 1, manufacturing costs can be reduced.

Sixth Embodiment FIG. 18 is a schematic view showing a discharge electrode 1 provided with a large-diameter portion 27 according to a sixth embodiment. In the sixth embodiment, the same as the fifth embodiment, the large-diameter portion 27 is provided so as to surround the joint portion 7a. However, unlike the fifth embodiment, the large-diameter portion 27 is provided in the portion other than the end portion 21 of the joint portion 7a. As the large-diameter portion 27, for example, a heat-shrinkable tube is used.

Even if a large-diameter portion 27 is provided in a portion other than the end portion 21 in the joint portion 7a, a high voltage is applied to the discharge electrode 1, and after the conductor 7 is bent at the end portion 21, the conductor 7 is bent through the outer diameter edge 29 Therefore, the root element length L2 can be set smaller than the brush length L1.

The large-diameter portion 27 of the sixth embodiment is the same as the large-diameter portion 27 of the fifth embodiment, and the discharge electrode 1 can be miniaturized while ensuring a high-efficiency discharge effect.

Seventh Embodiment FIG. 19 is a schematic view showing a discharge electrode 1 provided with a large-diameter portion 27 according to a seventh embodiment. Unlike the large-diameter portion 27 surrounding the joint portion 7 a of the fifth embodiment, the large-diameter portion 27 of the seventh embodiment surrounds the plurality of conductors 7. FIG. 20 is a development view of the joint portion 7 a and the large-diameter portion 27 shown in FIG. 19. The large-diameter portion 27 is disposed on the front end portion side of the conductor 7 with respect to the joint portion 7 a. As shown by an arrow A in FIG. 20, the conductor 7 is surrounded by the joint portion 7 a and the conductor 7 is fixed. As shown by an arrow B in FIG. 20, the conductor 7 is surrounded by the large-diameter portion 27. The inner peripheral surface of the large-diameter portion 27 is not in contact with the conductor 7 when no current is applied.

Even if the large-diameter portion 27 is provided to surround a plurality of conductors 7 and a high voltage is applied to the discharge electrode 1, the conductor 7 is bent at the end portion 21, and the conductor 7 is bent through the outer diameter edge 29. Therefore, the root element can be made long. L2 is set smaller than the brush length L1. Also in the large-diameter portion 27 of the seventh embodiment, the discharge electrode 1 can be miniaturized.

The large-diameter portion 27 described in the fifth to seventh embodiments can also be applied to the discharge electrodes 1 shown in the first to fourth embodiments.

As described above, the above-mentioned embodiments disclosed in this specification are examples in all aspects and are not intended to be limiting. The technical scope of the present invention is defined by the scope of patent application, and is intended to include all changes within the meaning and scope equivalent to the scope of patent application.

1,2‧‧‧discharge electrode

3,4‧‧‧Induction electrode

5,6‧‧‧Printed substrate

5a, 5b‧‧‧hole

7,7d, 8‧‧‧conductor

7a, 8a ‧‧‧ junction

10‧‧‧shell

11,12‧‧‧Support

15‧‧‧Guide

16‧‧‧circuit board

17‧‧‧Circuit Parts

18‧‧‧Transformer

19‧‧‧Insulation material

20‧‧‧ front face

21‧‧‧ tip

22‧‧‧Inner peripheral surface

23‧‧‧ convex

24‧‧‧ Recess

25, 25a, 25b ‧‧‧ Genmotobe

26‧‧‧ protrusion

27‧‧‧Large diameter section

29‧‧‧ outer diameter edge

30‧‧‧Power circuit

31‧‧‧Boost Transformer

34‧‧‧ inclined surface

P‧‧‧plane

DR1‧‧‧axis direction

DR2‧‧‧long side direction

L1‧‧‧Brush length

L2‧‧‧ Root Yuan

T1‧‧‧Power Terminal

T2‧‧‧ ground terminal

FIG. 1 is a perspective view showing an ion generating device provided with a discharge electrode according to the first embodiment of the present invention. FIG. 2 is a plan view of the ion generating device shown in FIG. 1. 3 is a cross-sectional view of the ion generating device taken along a line III-III shown in FIG. 1. FIG. 4 is a perspective view of the vicinity of a front end portion of a discharge electrode. FIG. 5 is a circuit diagram showing a configuration of the ion generating device shown in FIG. 1. 6 is a schematic view of a cross section of a discharge electrode taken along a line VI-VI shown in FIG. 4. Fig. 7 is an enlarged view of a front end portion of a conductor. 8 (A) and 8 (B) are diagrams showing one conductor before and after the front end portion is aligned. Fig. 9 is a schematic view of a developed portion of the first embodiment. FIG. 10 is a schematic view of a developed portion of the second embodiment. FIG. 11 is a schematic view of a developed portion of a third embodiment. FIG. 12 is a schematic view of a developed portion of a fourth embodiment. FIG. 13 is a perspective view showing an ion generating device provided with a discharge electrode according to a fifth embodiment of the present invention. FIG. 14 is a plan view of the ion generating device shown in FIG. 13. FIG. 15 is a cross-sectional view of the ion generating device taken along the line XV-XV shown in FIG. 13. 16 is a schematic view showing a discharge electrode provided with a large-diameter portion according to the fifth embodiment. FIG. 17 is a diagram showing an example of a large-diameter portion according to the fifth embodiment. 18 is a schematic view showing a discharge electrode provided with a large-diameter portion according to the sixth embodiment. 19 is a schematic view showing a discharge electrode provided with a large-diameter portion according to the seventh embodiment. FIG. 20 is a development view of a joint portion shown in FIG. 19.

Claims (7)

A discharge electrode includes: a cylindrical joint portion; and a plurality of wire-shaped conductors each having a root element bundled by the joint portion; the root element portion is arranged to be inclined with respect to an axial direction of the joint portion. For example, the discharge electrode of the scope of application for a patent, wherein the joint portion has an inner peripheral surface; and the root element portion configured to be close to the inner peripheral surface has a greater distance than the root element portion disposed to be far from the inner peripheral surface. The big tilt. For example, the discharge electrode according to item 1 or 2 of the patent application scope, wherein the joint portion has an inner peripheral surface; and a guide member extending obliquely with respect to the axis direction is formed on the inner peripheral surface. For example, the discharge electrode according to the first or second aspect of the patent application, wherein the front end surface of the conductive body is inclined with respect to the longitudinal direction of the conductive body. For example, the discharge electrode according to item 1 or 2 of the patent application, wherein a cylindrical large-diameter portion is provided, and the large-diameter portion surrounds at least one of the conductor and the joint portion and has a larger diameter than the outer diameter of the joint portion Outer diameter. For example, the discharge electrode according to claim 5 in which the large-diameter portion surrounds the joint portion. For example, in the discharge electrode according to claim 6, the joint portion has an end portion of the conductive body protruding from the joint portion, and the large diameter portion is provided at the end portion.