Structure of removing static electricity in low-humidity space

Patent metadata

Field	Value
Publication number	US-10798807-B2
Application number	US-201815935991-A
Country	US
Kind code	B2
Filing date	Mar 26, 2018
Priority date	Feb 8, 2016
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

There is provided a static electricity removal structure in a low-humidity space, in which static electricity can be removed with high efficiency in the low-humidity space by using a static electricity removal device. A low-humidity space is configured such that dehumidified air is supplied from one side of the low-humidity space into the low-humidity space through a blowout surface material in which ventilation pore is formed, and exhausting is performed from the other side of the low-humidity space, which opposes the blowout surface material. A static electricity removal device is disposed on a downstream side of the blowout surface material.

First claim

What is claimed is:

1. A static electricity removal structure comprising:
a static electricity removal device configured to:
be present in a booth space when a laminar flow of air is about 0.005 to 0.1 m/s, and
remove static electricity from the air that is in the booth space,

wherein the static electricity removal device is sited in the booth space in a manner that permits a flow of the air in the booth space to flow, as the laminar flow of the air, across the static electricity removal device.

2. The static electricity removal structure according to claim 1 , wherein the static electricity removal device is configured to be present in the booth space when the laminar flow of the air is about 0.008 to 0.05 m/s.

3. The static electricity removal structure according to claim 1 , wherein the static electricity removal device is configured to be present in the booth space when the laminar flow of the air is about 0.01 to 0.02 m/s.

4. The static electricity removal structure according to claim 1 , wherein the static electricity removal device is configured to be present in the booth space when a dew point temperature in the booth space is 0° C. or lower.

5. The static electricity removal structure according to claim 1 , wherein the static electricity removal device is configured to be present in the booth space when a dew point temperature in the booth space is −30° C. or lower.

6. The static electricity removal structure according to claim 1 , wherein the static electricity removal device is configured to be present in the booth space when a dew point temperature in the booth space is −60° C.

7. The static electricity removal structure according to claim 1 , further comprising:
an additional static electricity removal device configured to remove the static electricity from the air that is in the booth space.

8. The static electricity removal structure according to claim 7 , wherein the additional static electricity removal device is sited in the booth space in a manner that permits the flow of the air in the booth space to flow, as the laminar flow of the air, across the static electricity removal device and the additional static electricity removal device.

9. The static electricity removal structure according to claim 7 , wherein the static electricity removal device is in parallel with the additional static electricity removal device.

10. The static electricity removal structure according to claim 7 , wherein the static electricity removal device is configured to generate positive ions when the additional static electricity removal device generates negative ions, the additional static electricity removal device is configured to generate positive ions when the static electricity removal device generates negative ions.

11. The static electricity removal structure according to claim 1 , wherein a blow port is configured to supply the air into the booth space.

12. The static electricity removal structure according to claim 11 , wherein a blow port is configured to supply the air into the booth space at a dew point temperature of −30° C. or lower.

13. The static electricity removal structure according to claim 11 , wherein the static electricity removal device is sited in the booth space downstream from the blow port.

14. The static electricity removal structure according to claim 11 , wherein a space is between the static electricity removal device and the blow port.

15. The static electricity removal structure according to claim 11 , wherein the blow port is at one side of the booth space and the air is exhaustible from the booth space at another side of the booth space.

16. The static electricity removal structure according to claim 11 , wherein a blowout surface material in which a ventilation pore is formed is provided in the blow port.

17. The static electricity removal structure according to claim 16 , wherein the blowout surface material in which the ventilation pore is formed is formed of a synthetic resin member.

18. The static electricity removal structure according to claim 1 , wherein the static electricity removal device is an ionizer.

19. The static electricity removal structure according to claim 1 , wherein the air is dehumidified air.

20. The static electricity removal structure according to claim 1 , wherein the booth space is covered with a double structure curtain, exhausting is forcibly performed from a space formed by the double structure curtain.

21. The static electricity removal structure according to claim 9 , wherein a blow port is configured to supply the air into the booth space, and the static electricity removal device and the additional static electricity removal device are sited in the booth space downstream from the blow port in parallel with each other and spaced from the blow port at equal distances.

Assignees

• Nihon Spindle Mfg Co Ltd
• Aist

Inventors

• Sakamoto Taichi
• Mukai Takashi
• IKEUCHI Yuta
• Yanagida Masahiro
• Izumi Kenji
• Taniguchi Teppei

Classifications

• F24F3/14 Primary

  by humidification; by dehumidification · CPC title

• F24F3/167

  Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed (air distribution by perforated walls F24F7/10) · CPC title

• H01H23/00

  Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button · CPC title

• H05F3/06 Primary

  by means of ionising radiation · CPC title

• H01H19/00

  Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand · CPC title