Discharge device

Abstract

This discharge device (100) is provided with a discharge member (192), a support member (191), and a protrusion (200). The discharge member (100) discharges by applying a voltage thereto. The support member (191) has a planar shape and supports the discharge member (192). The protrusion (200) is inclined relative to the support member (191), and protrudes in a direction intersecting the support member (191). Part of the protrusion (200) is positioned outside of an insulating member (9) that is arranged on a surface of a substrate (52) to which the support member (191) is connected.

Description

[Technical Field]

[0001] The present invention relates to a discharge device. [Background technology]

[0002] The discharge device described in Patent Document 1 includes a casing, a plurality of discharge electrode needles, a high-voltage substrate, and a filler. The casing accommodates the plurality of discharge electrode needles, the high-voltage substrate, and the filler. A high voltage is applied to the plurality of discharge electrode needles, generating ions. The high-voltage substrate is connected to the plurality of discharge electrode needles. The high-voltage substrate is connected to an external high-voltage power supply. The filler is an insulating resin. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-102295 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the discharge device described in Patent Document 1, when an insulating material such as a filler hardens, the insulating material may creep up toward a discharge member such as a discharge electrode needle. When the insulating material creeps up, the insulating material adheres to the discharge member. When the insulating material creeps up onto the discharge member, the characteristics of the discharge member may change.

[0005] The present invention has been made in view of the above-mentioned problems, and has an object to provide a discharge device that can prevent an insulating member from adhering to a discharge member. [Means for solving the problem]

[0006] According to one aspect of the present invention, a discharge device includes a discharge member, a support, and a protruding piece. The discharge member discharges when a voltage is applied to the discharge member. The support has a flat plate shape and supports the discharge member. The protruding piece is inclined relative to the support and protrudes in a direction intersecting the support. A portion of the protruding piece is located outside an insulating member that is disposed on the surface of a substrate to which the support is connected. [Effects of the Invention]

[0007] According to the discharge device of the present invention, it is possible to prevent the insulating member from adhering to the discharge member. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram showing a discharge device according to an embodiment of the present invention; [Figure 2] 2 is a cross-sectional view of the discharge device shown in FIG. 1 taken along line II-II. [Figure 3] FIG. 3 is an enlarged view of the electrode shown in FIG. 2. [Figure 4] FIG. 4 is a view of the electrode of FIG. 3 from a different angle. [Figure 5] 5 shows a VV cross section of the electrode shown in FIG. [Figure 6] 10 is an enlarged view showing an electrode of a discharge device according to a first modification of the first embodiment. FIG. [Figure 7] FIG. 7 is a view of the electrode of FIG. 6 from a different angle. [Figure 8] 10 is an enlarged view showing a cross section of an electrode of a discharge device according to a second modification of the first embodiment. FIG. [Figure 9] FIG. 10 is an enlarged view showing an electrode of a discharge device according to a second embodiment. [Figure 10] FIG. 10 is a view of the electrodes of FIG. 9 from a different angle. [Figure 11] 11 is a cross-sectional view of the electrode shown in FIG. 10 taken along the line XI-XI. [Figure 12] 10 is an enlarged view showing the electrodes of the discharge device 100 according to the third embodiment. FIG. [Figure 13] FIG. 13 is a view of the electrode of FIG. 12 from a different angle. [Figure 14] FIG. 14 is a cross-sectional view of the electrode shown in FIG. 13 taken along the line XIV-XIV. [Figure 15] 10 is an enlarged view showing an electrode of a discharge device according to a first modification of the third embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are designated by the same reference numerals, and description thereof will not be repeated. In the embodiment of the present invention, the X-axis, Y-axis, and Z-axis are mutually orthogonal, the X-axis and Y-axis are parallel to a horizontal plane, and the Z-axis is parallel to a vertical line.

[0010] [Embodiment 1] A discharge device 100 according to a first embodiment of the present invention will be described with reference to Figures 1 to 4. First, the discharge device 100 according to the first embodiment will be described with reference to Figure 1. Figure 1 is a diagram showing the discharge device 100 of the first embodiment. The discharge device 100 generates active species (including radicals), ions, and ozone by discharging.

[0011] The discharge device 100 has a plurality of electrodes 19, a housing portion 1, and a cover portion 2. The plurality of electrodes 19 discharge when a voltage is applied to them. The plurality of electrodes 19 is, for example, two electrodes 19. That is, the plurality of electrodes 19 is, for example, a pair of electrodes 19. A portion of each of the pair of electrodes 19 penetrates the cover portion 2.

[0012] The housing 1 houses a part of the pair of electrodes 19. The housing 1 is a box-shaped housing. The housing 1 has insulating properties. The housing 1 is made of, for example, resin.

[0013] The cover 2 covers a portion of the housing 1 where the pair of electrodes 19 are arranged. The cover 2 has insulating properties and is made of, for example, resin.

[0014] Next, the discharge device 100 will be described in detail with reference to Fig. 2. Fig. 2 is a cross-sectional view taken along line II-II of the discharge device 100 shown in Fig. 1. As shown in Fig. 2, the discharge device 100 further includes a plurality of induction electrodes 132, a first substrate 51, a second substrate 52, a third substrate 53, an electronic component 7, a transformer 8, and an insulating member 9.

[0015] 2, the accommodation unit 1 accommodates a first substrate 51, a second substrate 52, a third substrate 53, an electronic component 7, a transformer 8, and an insulating member 9. The accommodation unit 1 is box-shaped with an opening 13. The accommodation unit 1 has a side wall portion 11 and a bottom wall portion 12.

[0016] The bottom wall 12 supports the side wall 11. The transformer 8 and the electronic components 7 are arranged on the bottom wall 12. The side wall 11 surrounds the periphery of the bottom wall 12. The side wall 11 extends from the bottom wall 12 toward the opening 13.

[0017] The plurality of induction electrodes 132 form an electric field between the induction electrodes 132 and the electrode 19. The plurality of induction electrodes 132 is, for example, two induction electrodes 132. That is, the plurality of induction electrodes 132 is, for example, a pair of induction electrodes 132. Each of the pair of induction electrodes 132 is disposed around the electrode 19. The induction electrodes 132 are annular or approximately annular. Being approximately annular means that the induction electrodes 132 are partially discontinued in the circumferential direction. The pair of induction electrodes 132 are connected to the first substrate 51.

[0018] The pair of electrodes 19 are, for example, brush-like electrodes. The pair of electrodes 19 are connected to the second substrate 52. When a high voltage is applied to the pair of electrodes 19, a corona is generated. That is, each of the pair of electrodes 19 discharges and generates ions.

[0019] For example, one electrode 19 of the pair of electrodes 19 emits positive ions by discharging. The positive ions are hydrogen ions (H + ) is a cluster ion (H + (H2O) m(m is any positive number equal to or greater than zero). Furthermore, for example, the other electrode 19 of the pair of electrodes 19 emits negative ions by discharging. The negative ions are cluster ions (O2-(H2O)) in which multiple water molecules are clustered around oxygen ions (O2-). n (n is any positive number greater than or equal to zero).

[0020] When emitting positive ions and negative ions, the greater the distance between the electrode 19 that emits positive ions and the electrode 19 that emits negative ions, the greater the amount of ions emitted from each electrode 19.

[0021] The released positive and negative ions surround, for example, mold spores floating in the air and cause a chemical reaction on the surface of the mold spores. The chemical reaction generates the active species hydroxyl radical (·OH). The action of the hydroxyl radical (·OH) then removes the mold spores.

[0022] A pair of induction electrodes 132 is arranged on first substrate 51. First substrate 51 is electrically connected to the pair of induction electrodes 132. First substrate 51 is a so-called printed circuit board. First substrate 51 is arranged closer to opening 13 than second substrate 52. First substrate 51 is connected to transformer 8 by lead wires. First substrate 51 is connected to third substrate 53 via transformer 8.

[0023] A pair of electrodes 19 is arranged on the second substrate 52. The second substrate 52 is electrically connected to the pair of electrodes 19. The second substrate 52 is a so-called printed circuit board. The second substrate 52 is arranged closer to the opening 13 than the third substrate 53. The second substrate 52 is connected to the transformer 8 by lead wires. The second substrate 52 is connected to the third substrate 53 via the transformer 8.

[0024] A circuit is formed on the third substrate 53. Specifically, a circuit for electrically connecting the first substrate 51, the second substrate 52, the transformer 8, and the electronic components 7 is formed on the third substrate 53. More specifically, the third substrate 53 electrically connects the transformer 8 and the electronic components 7 by a pattern. Specifically, the third substrate 53 is connected to the terminals of the transformer 8. The third substrate 53 is disposed between the electronic components 7 and the second substrate 52.

[0025] The electronic components 7 include, for example, a power supply terminal, a diode, a resistor, a transistor, a capacitor, etc. The power supply terminal is connected to an external power supply via a pattern.

[0026] The transformer 8 steps up the voltage generated in the electronic component 7 and applies the generated high voltage to a pair of electrodes 19 .

[0027] The insulating member 9 has insulating properties. The insulating member 9 is, for example, a urethane resin or an epoxy resin. The insulating member 9 hardens, for example, over time. Furthermore, the insulating member 9 hardens, for example, due to temperature (heat) or light (ultraviolet rays). The insulating member 9 is not hardened when introduced into the storage section 1. In other words, the insulating member 9 is in a liquid state. For example, the insulating member 9 that has been introduced into the storage section 1 and has been left there for some time hardens.

[0028] The cover part 2 covers the opening 13 of the housing part 1. The cover part 2 includes a main body part 21 and a pair of holes 20. The pair of holes 20 receive the pair of electrodes 19, respectively.

[0029] Next, the discharge device 100 will be described in more detail with reference to Figures 2 to 5. Figure 3 is an enlarged view of the electrode 19 shown in Figure 2. Figure 4 is a view of the electrode 19 in Figure 3 viewed from a different angle. To facilitate understanding of the invention, Figures 3 and 4 show the electrode 19, second substrate 52, and insulating member 9. Figure 5 shows a VV cross section of the electrode 19 shown in Figure 4.

[0030] As shown in FIGS. 3 and 4, the electrode 19 includes a support portion 191 and a discharge member 192.

[0031] The support portion 191 supports the discharge member 192. A voltage is applied to the support portion 191 together with the discharge member 192. The support portion 191 has a main body portion 194. The main body portion 194 penetrates the second substrate 52. Furthermore, the main body portion 194 penetrates the insulating member 9.

[0032] As shown in FIG. 4, the main body 194 has a flat plate shape. The main body 194 has a pair of first surfaces 191A facing each other, a pair of second surfaces 191B facing each other, a first support end portion 191C, and a second support end portion 191D. The pair of second surfaces 191B are disposed between one first surface 191A and the other first surface 191A. The width of the first surface 191A is greater than the width of the second surface 191B. In other words, the area of ​​the first surface 191A is greater than the area of ​​the second surface 191B. In other words, the main body 194 is a thin plate.

[0033] The first support end 191C is an end on the side of the first direction D1. The first direction D1 indicates the direction from the second substrate 52 toward the discharge member 192. The first support end 191C penetrates the insulating member 9 and protrudes to the outside of the insulating member 9.

[0034] The second support end 191D is an end on the side of the second direction D2. The second support end 191D is connected to the second substrate 52. The second direction D2 indicates the direction from the discharge member 192 toward the second substrate 52. A portion of the second support end 191D penetrates the second substrate 52.

[0035] The discharge member 192 discharges when a voltage is applied thereto.

[0036] Moreover, the discharge device 100 further includes a protruding piece 200. The protruding piece 200 protrudes in a direction intersecting with the support portion 191. The protruding piece 200 is made of the same material as the support portion 191 and is molded integrally with the support portion 191.

[0037] 4 and 5, the protruding piece 200 is inclined with respect to the support portion 191. Specifically, the protruding piece 200 is bent at a predetermined angle so as to be inclined with respect to the support portion 191. In other words, the protruding piece 200 is bent with respect to the support portion 191. The angle of the protruding piece 200 with respect to the support portion 191 is set to any angle by the designer.

[0038] Furthermore, a portion of the protruding piece 200 is located outside the insulating member 9 that is disposed on the surface of the second substrate 52 to which the support portion 191 is connected. This prevents the insulating member 9 from creeping up beyond the protruding piece 200 in the direction from the protruding piece 200 toward the discharge member 192. This prevents the insulating member 9 from creeping up to the support portion 191 that is located further in the first direction D1 than the protruding piece 200. As a result, it is possible to prevent the insulating member 9 from adhering to the discharge member 192. This prevents the discharge performance of the discharge member 192 from deteriorating.

[0039] Interfacial tension occurs between the protruding piece 200 and the insulating member 9 before it hardens. In other words, the insulating member 9 and the protruding piece 200 are attracted to each other. Therefore, the insulating member 9 creeps up the protruding piece 200 in the first direction D1. The creeping up of the insulating member 9 in the first direction D1 stops at a position where it is balanced with gravity.

[0040] In this embodiment, the protruding piece 200 is inclined relative to the support portion 191, and therefore the insulating member 9 that creeps up in the first direction D1 relative to the protruding piece 200 becomes concave toward the second substrate 52. Furthermore, because a portion of the protruding piece 200 is located outside the insulating member 9, it is possible to prevent the insulating member 9 from creeping up to the discharge member 192 that is located further in the first direction D1 than the protruding piece 200.

[0041] Furthermore, when connecting the support portion 191 to the second substrate 52, the second support end portion 191D of the support portion 191 is inserted into the through-hole of the second substrate 52. Specifically, the second support end portion 191D is inserted into the through-hole of the second substrate 52 until the protruding piece 200 abuts against the second substrate 52. When the second support end portion 191D is inserted into the through-hole of the second substrate 52, the protruding piece 200 functions as a positioning device. In other words, by inserting the second support end portion 191D into the through-hole of the second substrate 52 until the protruding piece 200 abuts against the second substrate 52, the position of the discharge member 192 becomes uniform among the multiple discharge devices 100. Therefore, it is possible to prevent the discharge performance of the discharge member 192 from differing among the discharge devices 100 due to differences in the position or inclination of the discharge member 192.

[0042] Furthermore, because the protruding piece 200 is inclined relative to the support portion 191, when the second support end portion 191D is inserted into the through-hole of the second substrate 52, it is possible to prevent the electrode 19 from falling toward the second substrate 52 and changing the posture of the support portion 191. For example, the protruding piece 200 intersects with the support portion 191 at an angle of 30 degrees.

[0043] When the protruding piece 200 abuts against the second substrate 52, the support portion 191 stands on its own. That is, it is possible to prevent the position of the support portion 191 from changing when the second support end portion 191D is soldered to the second substrate 52. That is, the worker does not have to interrupt the soldering work to return the support portion 191 to its original position every time the position of the support portion 191 changes. As a result, the efficiency of the work of connecting the support portion 191 to the second substrate 52 is improved.

[0044] Furthermore, since the protruding piece 200 protruding from the support portion 191 is inclined relative to the support portion 191, the strength of the support portion 191 is improved. In other words, bending of the support portion 191 due to an external force can be reduced. For example, the protruding piece 200 reduces bending of the support portion 191 in the third direction D3 and the fourth direction D4 shown in FIG. 5. The third direction D3 indicates a direction along the direction from one first surface 191A to the other first surface 191A. The fourth direction D4 indicates a direction along the direction from one second surface 191B to the other second surface 191B. The fourth direction D4 intersects with the third direction D3.

[0045] 2 to 4, the insulating member 9 is filled around the support portion 191 and the protruding piece 200. Therefore, a part of the protruding piece 200 is exposed to the outside of the insulating member 9, and another part of the protruding piece 200 is located inside the insulating member 9. Furthermore, the insulating member 9 creeps up from the part of the protruding piece 200 exposed to the outside of the insulating member 9 due to the action of interfacial tension. Therefore, the part of the protruding piece 200 exposed from the insulating member 9 can be reduced. As a result, the creeping up of the insulating member 9 onto the support portion 191 can be suppressed, and moisture can be suppressed from adhering to the protruding piece 200. By suppressing moisture from adhering to the protruding piece 200, corrosion of the base portion of the electrode 19 can be suppressed.

[0046] Furthermore, reducing bending of the support portion 191 is particularly effective in manufacturing the discharge device 100. During the manufacturing process, there is a chance that a work tool or the like will come into contact with the electrode 19. However, the support portion 191 of the present invention can reduce bending by using the protruding piece 200. Therefore, bending of the support portion 191 can be suppressed.

[0047] Continuing, the electrode 19 will be described in more detail with reference to FIGS. 2 to 5. As shown in FIGS. 3 and 4, the discharge member 192 is a plurality of fibers. That is, the discharge member 192 is a bundle of fibers. Each of the plurality of fibers is a conductor. The discharge member 192 is, for example, a carbon fiber. The discharge member 192 may also be, for example, a metal, a conductive fiber, or a conductive resin. A portion of the plurality of fibers of the discharge member 192 expands during discharge.

[0048] The support portion 191 of the electrode 19 further has a holding portion 193. The holding portion 193 holds the discharge member 192. The holding portion 193 extends from the support portion 191. The holding portion 193 is made of the same material as the support portion 191 and is integrally molded with the support portion 191. The holding portion 193 also bundles the plurality of fibers of the discharge member 192. In other words, the holding portion 193 holds the discharge member 192 so that it has a brush-like shape.

[0049] The holding portion 193 has a first holding piece 193A and a second holding piece 193B. The first holding piece 193A and the second holding piece 193B hold the base end of the discharging member 192. Specifically, the first holding piece 193A and the second holding piece 193B hold the base end of the discharging member 192 by crimping deformation. The first holding piece 193A and the second holding piece 193B hold the base end of the discharging member 192, so that the discharging member 192 has a brush-like shape.

[0050] The holding portion 193 also has a first holding end 193C and a second holding end 193D.

[0051] The first holding end 193C is an end on the side of the discharge member 192. In other words, the first holding end 193C is an end on the side of the first direction D1.

[0052] The second holding end 193D is an end on the insulating member 9 side. In other words, the second holding end 193D is an end on the second direction D2 side. The second holding end 193D is continuous with the main body 194 of the support 191.

[0053] 3, the holding portion 193 holds the discharge member 192 on the side of one of the pair of first surfaces 191A of the support portion 191. In other words, the position of the center of gravity of the support portion 191 is shifted to the side of the one first surface 191A. Therefore, the support portion 191 is more likely to fall in the direction in which the holding portion 193 holding the discharge member 192 is located.

[0054] However, in the discharge device 100 of this embodiment, as shown in Fig. 3, the protruding piece 200 is inclined toward the side where the discharge member 192 is located relative to the support part 191. Therefore, the protruding piece 200 can support the support part 191 that is tilting in the direction of the center of gravity. As a result, the support part 191 can be prevented from tilting toward the second substrate 52.

[0055] 2 to 5, the protruding piece 200 includes a first protruding piece 200A and a second protruding piece 200B. The first protruding piece 200A protrudes from one of the pair of second surfaces 191B of the support part 191. The second protruding piece 200B protrudes from the other of the pair of second surfaces 191B of the support part 191.

[0056] At least one of the first protruding piece 200A and the second protruding piece 200B is inclined toward the side where the discharge member 192 is located, with respect to the support portion 191. Therefore, at least one of the first protruding piece 200A and the second protruding piece 200B can support the support portion 191. As a result, the support portion 191 can be further prevented from falling toward the second substrate 52.

[0057] 5, the first protruding piece 200A and the second protruding piece 200B are bent toward the same side in the third direction D3. Therefore, when the support portion 191 tilts toward the center of gravity, the first protruding piece 200A and the second protruding piece 200B can support the support portion 191. As a result, the support portion 191 can be further prevented from tilting toward the second substrate 52.

[0058] Furthermore, a portion of the first protruding piece 200A is located outside the insulating member 9 arranged on the surface of the second substrate 52 to which the support portion 191 is connected. A portion of the second protruding piece 200B is located outside the insulating member 9 arranged on the surface of the second substrate 52 to which the support portion 191 is connected. This prevents the insulating member 9 from creeping up beyond the first protruding piece 200A in the direction from the first protruding piece 200A toward the discharge member 192. This also prevents the insulating member 9 from creeping up beyond the second protruding piece 200B in the direction from the second protruding piece 200B toward the discharge member 192. The insulating member 9 creeping up the protruding piece 200 in the first direction D1 becomes concave toward the second substrate 52. This prevents the insulating member 9 from creeping up the support portion 191 beyond the end of the first protruding piece 200A in the first direction D1. This can prevent the insulating member 9 from creeping up the support portion 191 beyond the end of the second protruding piece 200B in the first direction D1. As a result, it is possible to prevent the insulating member 9 from adhering to the discharge member 192. Therefore, it is possible to prevent the discharge performance of the discharge member 192 from deteriorating.

[0059] (Variation 1) Next, a first modification of the discharge device 100 of the first embodiment will be described with reference to Figures 6 and 7. The first modification differs from the first embodiment mainly in the number of protruding pieces 200. The following describes the differences between the first modification and this embodiment.

[0060] Fig. 6 is an enlarged view of the electrode 19 of the discharge device 100 according to Modification 1 of Embodiment 1. Fig. 7 is a view of the electrode 19 of Fig. 6 viewed from a different angle. To facilitate understanding of the invention, Figs. 6 and 7 show the electrode 19, second substrate 52, and insulating member 9.

[0061] 6 and 7, the protruding piece 200 of the first modification includes a first protruding piece 200A and a second protruding piece 200B. The first protruding piece 200A includes a first piece 201 and a third piece 203. The second protruding piece 200B includes a second piece 202 and a fourth piece 204.

[0062] The first piece 201 protrudes from one of the pair of second surfaces 191B of the support part 191. The second piece 202 protrudes from the other of the pair of second surfaces 191B of the support part 191. At least one of the first piece 201 and the second piece 202 is inclined with respect to the support part 191 towards the side where the discharge member 192 is located.

[0063] Moreover, the first piece 201 and the second piece 202 are disposed inside the insulating member 9. Therefore, the first piece 201 and the second piece 202 are covered by the insulating member 9. As a result, the portion exposed from the insulating member 9 is reduced, and it is possible to prevent moisture from adhering to the first piece 201 and the second piece 202. Furthermore, it is possible to prevent moisture from adhering to the protruding piece 200, and it is possible to prevent corrosion of the base portion of the electrode 19.

[0064] The third piece 203 is located at a position different from the first piece 201 and protrudes from one of the pair of second surfaces 191B of the support portion 191. The third piece 203 is located between the first piece 201 and the discharge member 192.

[0065] The fourth piece 204 is located at a position different from the second piece 202 and protrudes from the other of the pair of second surfaces 191B of the support portion 191. The fourth piece 204 is located between the second piece 202 and the discharge member 192.

[0066] A portion of the third piece 203 and a portion of the fourth piece 204 are disposed outside the insulating member 9. That is, a portion of the third piece 203 is disposed outside the insulating member 9 disposed on the surface of the second substrate 52 to which the support portion 191 is connected. A portion of the fourth piece 204 is disposed outside the insulating member 9 disposed on the surface of the second substrate 52 to which the support portion 191 is connected. This prevents the insulating member 9 from creeping up beyond the third piece 203 in the direction from the third piece 203 toward the discharge member 192. This also prevents the insulating member 9 from creeping up beyond the fourth piece 204 in the direction from the fourth piece 204 toward the discharge member 192. Furthermore, the insulating member 9 creeping up the protruding piece 200 in the first direction D1 becomes concave toward the second substrate 52. This prevents the insulating member 9 from creeping up the support portion 191 beyond the end of the third piece 203 in the first direction D1. This can prevent the insulating member 9 from creeping up the support portion 191 beyond the end of the fourth piece 204 in the first direction D1. As a result, the insulating member 9 can be prevented from adhering to the discharge member 192.

[0067] Furthermore, the first piece 201 and the third piece 203 are spaced apart. Furthermore, the second piece 202 and the fourth piece 204 are spaced apart. Therefore, the first piece 201 and the third piece 203 are not continuous, and the second piece 202 and the fourth piece 204 are not continuous. In other words, the portion of the electrode 19 that is longer in the fourth direction D4 is not continuous in the first direction D1. Therefore, when the support portion 191 is soldered to the second substrate 52, the speed at which heat transferred from the soldering iron to the support portion 191 travels through the electrode 19 can be reduced. In other words, when the support portion 191 between the first piece 201 and the second piece 202 is heated, the speed at which heat transferred to the support portion 191 travels toward the discharge member 192 can be slowed. As a result, the efficiency of soldering the support portion 191 to the second substrate 52 can be improved.

[0068] As shown in FIG. 7 , in the fourth direction D4, a third portion of the electrode 19 where the width narrows is located between a first portion where the width of the electrode 19 widens and a second portion where the width of the electrode 19 widens. The first portion is a portion of the electrode 19 that includes the first piece 201, the second piece 202, and the support portion 191. The second portion is a portion of the electrode 19 that includes the third piece 203, the fourth piece 204, and the support portion 191. The third portion is a portion of the electrode 19 that includes the support portion 191. Therefore, heat transferred from the soldering iron to the electrode 19 is transferred from the first portion to the third portion. Then, heat is transferred from the third portion to the second portion. The rate at which heat is transferred in the first portion is different from the rate at which heat is transferred in the third portion. For example, the rate at which heat is transferred in the third portion is slower than the rate at which heat is transferred in the first portion. In other words, when heat is applied to the first portion on the side of the second direction D2, the heat transfer is slower in the third portion. Therefore, the rate at which the temperature of the heated portion drops is reduced, and as a result, it is possible to prevent a decrease in the efficiency of the soldering work due to a drop in temperature.

[0069] 6, at least one of the third piece 203 and the fourth piece 204 is inclined toward the side where the discharge member 192 is located with respect to the support portion 191. Therefore, the portion of the support portion 191 from the holding portion 193 to the first piece 201 and the portion of the support portion 191 from the holding portion 193 to the second piece 202 can be reinforced. As a result, bending of the support portion 191 due to an external force can be reduced.

[0070] Furthermore, when connecting support portion 191 to second substrate 52, it becomes possible to pinch the third portion with tweezers. Because the third portion is located between the first portion and the second portion, the position of the tweezers pinching the third portion is unlikely to shift. This improves the efficiency of the work when connecting support portion 191 to second substrate 52.

[0071] (Variation 2) Next, a second modification of the discharge device 100 of the first embodiment will be described with reference to Figures 4 and 8. The second modification is different from the first embodiment in that the bending direction of the first protruding piece 200A is different from the bending direction of the second protruding piece 200B. The differences between the second modification and this embodiment will be described below.

[0072] Fig. 8 is an enlarged view of a cross section of electrode 19 of discharge device 100 according to Modification 2 of Embodiment 1. To facilitate understanding of the invention, Fig. 8 shows electrode 19, second substrate 52, and insulating member 9. Fig. 8 is a view showing electrode 19 of discharge device 100 according to Modification 2 of Embodiment 1. Fig. 8 is a view of electrode 19 viewed from the first direction D1 side to the second direction D2 side shown in Fig. 4.

[0073] As shown in FIG. 8, the protruding piece 200 of the second modification includes a first protruding piece 200A and a second protruding piece 200B.

[0074] The first protruding piece 200A has a first piece 201. The first piece 201 protrudes from one of the pair of second surfaces 191B of the support portion 191. Furthermore, the first piece 201 is inclined with respect to the support portion 191 in a direction from the other first surface 191A toward one of the first surfaces 191A of the support portion 191. In other words, the first piece 201 is bent with respect to the support portion 191 toward the one of the pair of first surfaces 191A of the support portion 191.

[0075] The second protruding piece 200B has a second piece 202. The second piece 202 protrudes from the other second surface 191B of the pair of second surfaces 191B of the support portion 191. Furthermore, the second piece 202 is inclined with respect to the support portion 191 in a direction from one first surface 191A of the support portion 191 toward the other first surface 191A of the support portion 191. In other words, the second piece 202 is bent with respect to the support portion 191 toward the other first surface 191A of the pair of first surfaces 191A of the support portion 191.

[0076] 8, first piece 201 and second piece 202 bend in different directions in third direction D3. Therefore, even if support portion 191 falls in a direction different from the direction in which the center of gravity is located, either first piece 201 or second piece 202 can support support portion 191. As a result, support portion 191 can be further prevented from falling toward second substrate 52.

[0077] [Embodiment 2] Next, a discharge device 100 according to a second embodiment will be described with reference to Figures 9 to 11. The second embodiment differs from the first embodiment mainly in the shape of the discharge member 192. The differences between the second embodiment and this embodiment will be described below.

[0078] Fig. 9 is an enlarged view of electrode 19 of discharge device 100 according to embodiment 2. To facilitate understanding of the invention, Fig. 10 is a view of electrode 19 in Fig. 9 viewed from a different angle. Fig. 11 is a view showing a cross section of electrode 19 taken along line XI-XI of electrode 19 shown in Fig. 9. Figs. 9 to 11 show electrode 19, second substrate 52, and insulating member 9.

[0079] The support portion 191 supports the discharge member 192. The support portion 191 has a main body portion 194. The main body portion 194 penetrates the second substrate 52. The main body portion 194 has a flat plate shape. The width of the main body portion 194 in the fourth direction D4 of the second embodiment is greater than the width of the main body portion 194 of the first embodiment. A second support end portion 191D of the support portion 191 in the second embodiment is fixed to the substrate with, for example, a screw or a socket.

[0080] The discharge member 192 discharges when a voltage is applied. The discharge member 192 is made of a plurality of fibers. The discharge member 192 is a conductor. The discharge member 192 is supported by a support portion 191. The discharge member 192 is made of, for example, carbon fiber. The discharge member 192 may also be made of, for example, metal, conductive fiber, or conductive resin. The plurality of fibers of the discharge member 192 partially expand when discharging.

[0081] 10, the discharge members 192 of the second embodiment are arranged side by side in the width direction in the fourth direction D4 of the support portion 191. That is, the greater the width of the support portion 191 in the fourth direction D4, the more discharge members 192 are supported by the support portion 191.

[0082] Moreover, the discharge device 100 of the second embodiment further includes a protruding piece 200. The protruding piece 200 protrudes in a direction intersecting with the support portion 191. As shown in FIG.

[0083] Furthermore, a portion of the protruding piece 200 is located outside the insulating member 9 that is disposed on the surface of the second substrate 52 to which the support portion 191 is connected. This prevents the insulating member 9 from creeping up beyond the protruding piece 200 in the direction from the protruding piece 200 toward the discharge member 192. This prevents the insulating member 9, before it has solidified, from creeping up to the support portion 191 that is located further in the first direction D1 than the protruding piece 200. As a result, the insulating member 9 can be prevented from adhering to the discharge member 192.

[0084] [Embodiment 3] Next, a discharge device 100 according to a third embodiment will be described with reference to Figures 12 to 14. The third embodiment differs from the first embodiment mainly in the shape of the discharge member 192. The following describes the differences between the third embodiment and this embodiment.

[0085] Fig. 12 is an enlarged view of the electrode 19 of the discharge device 100 according to the third embodiment. To facilitate understanding of the invention, Fig. 12 schematically shows a cross section of the electrode 19 and the second substrate 52. Fig. 13 is a view of the electrode 19 of Fig. 12 seen from a different angle. Fig. 14 is a view showing a cross section of the electrode 19 shown in Fig. 13 taken along line XIV-XIV.

[0086] The discharge device 100 according to the third embodiment includes a plurality of electrodes 19 (not shown), a housing portion 1 (not shown), and a cover portion 2 (not shown). As shown in FIG. 12, the electrode 19 includes a support portion 191 and a discharge member 192.

[0087] The support portion 191 supports the discharge member 192. A voltage is applied to the support portion 191 together with the discharge member 192. The support portion 191 has a main body portion 194. The main body portion 194 penetrates the second substrate 52. The main body portion 194 has a flat plate shape. The main body portion 194 is a thin plate.

[0088] 13, the width of the main body 194 in the fourth direction D4 in the third embodiment is greater than the width of the main body 194 in the first embodiment. The second support end 191D of the support portion 191 in the third embodiment is fixed to the substrate with, for example, a screw.

[0089] 12 and 13, the discharge member 192 is a flat plate with a pointed tip. In other words, the discharge member 192 is a triangular thin plate. The discharge member 192 is an electrical conductor. The discharge member 192 extends from the support part 191. The discharge member 192 is made of the same material as the support part 191 and is molded integrally with the support part 191.

[0090] The discharge member 192 discharges when a voltage is applied to it. The discharge device 100 of the third embodiment further includes a protruding piece 200. The protruding piece 200 protrudes in a direction intersecting with the support portion 191. As shown in FIG. 14 , the protruding piece 200 is inclined with respect to the support portion 191.

[0091] Furthermore, a portion of the protruding piece 200 is located outside the insulating member 9 that is disposed on the surface of the second substrate 52 to which the support portion 191 is connected. This prevents the insulating member 9 from creeping up beyond the protruding piece 200 in the direction from the protruding piece 200 toward the discharge member 192. This prevents the insulating member 9 from creeping up to the support portion 191 that is located further in the first direction D1 than the protruding piece 200. As a result, the insulating member 9 can be prevented from adhering to the discharge member 192.

[0092] (Variation 1) Next, a first modification of the discharge device 100 of the third embodiment will be described with reference to Fig. 15. The first modification of the third embodiment differs from the third embodiment mainly in the number of discharge members 192. Below, the differences between the first modification of the third embodiment and this embodiment will be described.

[0093] Fig. 15 is an enlarged view of electrode 19 of discharge device 100 according to Modification 1 of Embodiment 3. To facilitate understanding of the invention, Fig. 15 shows electrode 19 and second substrate 52.

[0094] As shown in FIG. 15, the support portion 191 supports a plurality of discharge members 192.

[0095] As shown in Figure 15, each of the multiple discharge members 192 is a flat plate with a pointed tip. In other words, the discharge members 192 are triangular thin plates. The multiple discharge members 192 are arranged side by side on the support part 191. The discharge members 192 are conductors. The discharge members 192 extend from the support part 191. The discharge members 192 are made of the same material as the support part 191 and are molded integrally with the support part 191.

[0096] Moreover, the discharge device 100 of the first modification of the third embodiment further includes a protruding piece 200. The protruding piece 200 protrudes in a direction intersecting with the support portion 191. As shown in FIG. 15 , the protruding piece 200 is inclined with respect to the support portion 191. Therefore, when connecting the support portion 191 to the second substrate 52, it is possible to prevent the support portion 191 from swinging with respect to the second substrate 52 and changing its posture. As a result, the efficiency of the work of connecting the support portion 191 to the second substrate 52 is improved.

[0097] The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above embodiments and can be embodied in various forms without departing from the spirit and scope of the present invention. Furthermore, various inventions can be formed by appropriately combining multiple components disclosed in the above embodiments. For example, some components may be omitted from all components shown in the embodiments. Furthermore, components from different embodiments may be appropriately combined. The drawings mainly show each component in a schematic manner to facilitate understanding. The thickness, length, number, spacing, etc. of each component shown in the drawings may differ from the actual ones due to the convenience of drawing. Furthermore, the speed, material, shape, dimensions, etc. of each component shown in the above embodiments are merely examples and are not particularly limited. Various modifications are possible within a scope that does not substantially deviate from the configuration of the present invention.

[0098] (1) The discharge device 100 described in embodiments 1 to 3 may be installed in electrical appliances such as air conditioners, dehumidifiers, humidifiers, air purifiers, refrigerators, gas fan heaters, kerosene fan heaters, electric fan heaters, washer-dryers, vacuum cleaners, sterilizers, and microwave ovens.

[0099] (2) In the discharge device 100 described in Modification 2 of Embodiment 1, similar to the first piece 201 and the second piece 202, the third piece 203 and the fourth piece 204 may bend in different directions from each other in the third direction D3. The third piece 203 protrudes from one of the pair of second surfaces 191B of the support portion 191. Furthermore, the third piece 203 bends toward the one of the pair of first surfaces 191A of the support portion 191 with respect to the support portion 191. The fourth piece 204 protrudes from the other of the pair of second surfaces 191B of the support portion 191. Furthermore, the fourth piece 204 bends toward the other of the pair of first surfaces 191A of the support portion 191 with respect to the support portion 191. That is, in the third direction D3, the third piece 203 and the fourth piece 204 bend in different directions. Therefore, the position of the center of gravity of the support portion 191 can be changed.

[0100] For example, when the holding portion 193 holds the discharge member 192 on the side of one of the pair of first surfaces 191A of the support portion 191, the bending direction of the third piece 203 and the fourth piece 204 can be changed to change the position of the center of gravity of the electrode 19. As a result, the support portion 191 can be further prevented from falling toward the second substrate 52.

[0101] (3) The discharge device 100 described in the second and third embodiments may further include a third piece 203 and a fourth piece 204. [Industrial Applicability]

[0102] The present invention provides a discharge device and has industrial applicability. [Explanation of symbols]

[0103] 9: Insulating material 52: Second board (board) 100:Discharge device 191: Support part 191A: 1st page 191B: 2nd side 192: Discharge member 193: Maintaining Department 200: Highlighted piece 201: The First Piece 202: The Second Piece 203: The 3rd piece 204: The 4th piece

Claims

1. a discharge member that discharges when a voltage is applied thereto; a support portion having a flat plate shape and supporting the discharge member; a discharge-side protruding piece inclined relative to the support portion and protruding in a direction intersecting the support portion; a substrate-side protruding piece that is inclined with respect to the support portion and protrudes in a direction intersecting the support portion; Equipped with the discharge-side protruding piece is located closer to the discharge member than the board-side protruding piece and is spaced apart from the board-side protruding piece, A discharge device, wherein a portion of the discharge-side protruding piece is located outside an insulating member that is arranged on the surface of the substrate to which the support portion is connected.

2. The support portion includes a holding portion that holds the discharge member. the discharge member is a bundle of fibers, The support portion includes a pair of first surfaces. the holding portion holds the discharge member on one of a pair of first surfaces of the support portion; The discharge device according to claim 1 , wherein the discharge-side protruding piece is inclined with respect to the support portion toward a side where the discharge member is located.

3. The support portion further includes a pair of second surfaces, the board-side protruding piece includes a first piece and a second piece, the first piece protrudes from one of the pair of second surfaces, the second piece protrudes from the other second surface of the pair of second surfaces, At least one of the first piece and the second piece is inclined with respect to the support portion toward a side where the discharge member is located, The discharge device according to claim 2 , wherein the first piece and the second piece are disposed inside the insulating member.

4. the discharge-side protruding piece further includes a third piece and a fourth piece, the third piece protrudes from one of the pair of second surfaces and is located between the first piece and the discharge member, the fourth piece protrudes from the other second surface of the pair of second surfaces and is located between the second piece and the discharge member, The discharge device according to claim 3 , wherein a portion of the third piece and a portion of the fourth piece are disposed outside the insulating member.

5. The discharge device according to claim 4 , wherein at least one of the third piece and the fourth piece is inclined relative to the support portion toward a side on which the discharge member is located.

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