Ion generation apparatus and electrical equipment

Patent metadata

Field	Value
Publication number	US-10096977-B2
Application number	US-201414914276-A
Country	US
Kind code	B2
Filing date	Aug 26, 2014
Priority date	Oct 2, 2013
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

In an ion generation apparatus, induction electrodes are formed on a surface of a substrate, holes are provided inside the induction electrodes, respectively, needle electrodes are disposed in a substrate, and tip end portions of the needle electrodes are inserted into the holes, respectively. Furthermore, a part of each of the induction electrodes is removed, thereby reducing the size of the substrate for entire size reduction. By such a configuration, it becomes possible to provide an ion generation apparatus that can stably generate ions even in a high humidity environment and that can be mounted also in small-sized electrical equipment.

First claim

The invention claimed is:

1. An ion generation apparatus including an induction electrode and a needle electrode, and generating ions in air, the ion generation apparatus comprising:
a first substrate provided with a hole; and
a second substrate provided so as to face a surface of the first substrate on one side, wherein
the induction electrode is provided around the hole of the first substrate and formed such that a part of a basic shape of the induction electrode is removed,
the needle electrode includes a base end portion disposed in the second substrate and a tip end portion inserted into the hole,
the basic shape of the induction electrode is formed so as to extend annularly around the hole of the first substrate, and
a part of the basic shape and a part of the first substrate corresponding thereto are removed.

2. The ion generation apparatus according to claim 1 , further comprising:
a housing that houses the first substrate and the second substrate and has one surface provided with an opening; and
insulating resin that covers the first substrate and the second substrate, and seals the opening.

3. The ion generation apparatus according to claim 2 , wherein the tip end portion of the needle electrode protrudes from the insulating resin.

4. The ion generation apparatus according to claim 1 , wherein
the first substrate is a printed circuit board, and
the induction electrode is formed by a wiring layer of the printed circuit board.

5. Electrical equipment comprising:
the ion generation apparatus according to claim 1 ; and
an air blowing unit for sending out ions generated in the ion generation apparatus.

Assignees

• Sharp Kk

Inventors

• Nishida Hiromu
• Izu Koichi
• Ohe Nobuyuki

Classifications

• F24F3/166

  Mechanical Engineering · mapped topic

• B60H3/0071

  Electrically conditioning the air, e.g. by ionizing · CPC title

• A61L9/22

  Ionisation · CPC title

• H01T19/04 Primary

  having pointed electrodes · CPC title

• H01T23/00 Primary

  Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere · CPC title