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Discharge device and method for manufacturing same

A discharge device and discharge electrode technology, which is applied in the direction of corona discharge device, electrostatic spray device, spray device, etc., can solve the problems that are difficult to meet at the same time

Active Publication Date: 2018-02-09
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above-mentioned conventional discharge device, it is difficult to satisfy these two requirements at the same time.

Method used

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  • Discharge device and method for manufacturing same
  • Discharge device and method for manufacturing same
  • Discharge device and method for manufacturing same

Examples

Experimental program
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Effect test

no. 1 Embodiment approach

[0064] exist figure 1 The basic configuration of the discharge device of the first embodiment is shown in . The discharge device of this embodiment includes a discharge electrode 1 , a voltage application unit 2 , a liquid supply unit 3 , a counter electrode 4 , and a conduction path 5 .

[0065] The discharge electrode 1 is an elongated needle-shaped electrode. The discharge electrode 1 has a tip portion 13 on one end side in the axial direction thereof, and has a base end portion 15 on the other end side (opposite side to the tip portion 13 ) in the axial direction. The word "needle" used in this application document is not limited to the case where the tip is sharp, but also includes the case where the tip is rounded.

[0066] The voltage application part 2 is electrically connected to the discharge electrode 1 so that the high voltage of about 7.0 kV can be applied to the discharge electrode 1. The discharge device of this embodiment includes a counter electrode 4 , an...

no. 2 Embodiment approach

[0085] based on Figure 3A , Figure 3B The discharge device of the second embodiment will be described. In addition, detailed descriptions of the same configurations as those described in the first embodiment are omitted.

[0086] exist Figure 3A The basic structure of the discharge device of this embodiment is shown in . The discharge device of the present embodiment differs from the first embodiment in that the counter electrode 4 integrally includes the needle-shaped electrode portion 41 and the support electrode portion 42 supporting the needle-shaped electrode portion 41 .

[0087] The needle-shaped electrode part 41 is an electrode part protruding toward the side close to the discharge electrode 1 from the opposing surface 420 which opposes the discharge electrode 1 in the support electrode part 42 . The needle-shaped electrode portion 41 has a sharp convex surface. In the entire counter electrode 4 , the tip of the needle-shaped electrode portion 41 is located cl...

no. 3 Embodiment approach

[0093] based on Figure 4A , Figure 4B A discharge device according to a third embodiment will be described. In addition, detailed descriptions of the same configurations as those described in the first embodiment are omitted.

[0094] exist Figure 4A The discharge device of this embodiment is shown in . In the discharge device of the present embodiment, a limiting resistor 6 for adjusting the current peak value of the pilot discharge is provided in the middle of the conduction path 5 electrically connecting the discharge electrode 1 and the counter electrode 4 . Specifically, the limiting resistor 6 is arranged in the middle of the first electric path 51 electrically connecting the voltage application unit 2 and the counter electrode 4 among the electric paths 5 .

[0095] In the pilot discharge, since the instantaneous current flows through the discharge path formed by insulation breakdown, the resistance against the current at this time becomes very small. Therefore, ...

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PUM

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Abstract

A discharge device according to the invention includes a discharge electrode and a voltage applicator that applies a voltage to the discharge electrode and thus causes discharge that is further developed from corona discharge at the discharge electrode. The discharge is discharge in which a discharge path is intermittently formed by dielectric breakdown so as to stretch from the discharge electrode to a surrounding. This discharge can be called leader discharge. This makes it possible to increase an amount of generated active component while keeping an increase of ozone small.

Description

technical field [0001] The present invention relates to a discharge device and its manufacturing method. More specifically, it relates to a discharge device including a discharge electrode and a voltage application unit for applying a voltage to the discharge electrode, and its manufacturing method. Background technique [0002] Conventionally, a discharge device including a discharge electrode and a voltage application unit has been provided. As a discharge device, a device in which a voltage is applied to a discharge electrode by a voltage application unit to generate a corona discharge to generate air ions is known. Also, as described in JP 2011-67738 A, there is known a device that generates a charged fine particle liquid containing ionic groups by generating a corona discharge on the discharge electrode after supplying a liquid to the discharge electrode. [0003] In the discharge device, there is a desire to increase the input energy to make air ions, ion groups, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01T23/00H01T19/04
CPCH01T19/04H01T23/00B05B5/057B05B5/0255H01T21/00
Inventor 石上阳平町昌治大森崇史山口友宏今堀修青野哲典中田隆行中野祐花里
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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