Sterilization apparatus

Patent metadata

Field	Value
Publication number	US-9566358-B1
Application number	US-201514958863-A
Country	US
Kind code	B1
Filing date	Dec 3, 2015
Priority date	Sep 25, 2015
Publication date	Feb 14, 2017
Grant date	Feb 14, 2017

Abstract

In an embodiment, a sterilization apparatus, adapted to sterilize a liquid to be sterilized, comprises a first sterilization light source, a first container and a sterilization container. The first sterilization light source includes a carrier, a plurality of LED packages and a plurality of collimating units, wherein the plurality of LED packages are disposed on and electrically connected to the plurality of carriers, and each of the plurality of collimating units separately is disposed on a corresponding LED package. The first container accommodates the first sterilization light source, and defines a first light-mixing space. The sterilization container includes an accommodating space for accommodating the liquid, wherein the first container is assembled together with the sterilization container, and the first light-mixing space is disposed between the first sterilization light source and the accommodating space.

First claim

What is claimed is:

1. A sterilization apparatus, adapted to sterilize a liquid to be sterilized, the sterilization apparatus comprising:
a first sterilization light source, including a carrier, a plurality of light-emitting diode (LED) packages and a plurality of collimating units, wherein the plurality of LED packages are disposed on and electrically connected to the carrier, and each of the plurality of collimating units separately is disposed on a corresponding LED packages;
a first container accommodating the first sterilization light source, wherein the first container defines a first light-mixing space; and
a sterilization container, including an accommodating space for accommodating the liquid to be sterilized, wherein the first container is assembled together with the sterilization container, and the first light-mixing space is disposed between the first sterilization light source and the accommodating space.

2. The sterilization apparatus of claim 1 , wherein the carrier includes a central area and a surrounding area, and the central area is adjacent to and surrounded by the surrounding area.

3. The sterilization apparatus of claim 2 , wherein a number of the plurality of LED packages in the central area is less than that of the plurality of LED packages in the surrounding area.

4. The sterilization apparatus of claim 3 wherein a shape of the carrier is a circle, the central area is a circular area and the surrounding area is a ring area.

5. The sterilization apparatus of claim 1 , wherein each of the plurality of LED packages is adapted to emit an ultraviolet light.

6. The sterilization apparatus of claim 5 , wherein the wavelength of the ultraviolet light is ranged from 260 nm to 285 nm.

7. The sterilization apparatus of claim 1 , wherein a plurality of lights emitted from the plurality of LED packages of the first sterilization light source converge after passing through the plurality of collimating units.

8. The sterilization apparatus of claim 1 , wherein a plurality of lights emitted from the plurality of LED packages of the first sterilization light source are parallel to each other after passing through the plurality of collimating units.

9. The sterilization apparatus of claim 1 , wherein the first container further includes a lid and the sterilization container includes a cup.

10. The sterilization apparatus of claim 1 , further including:
a first optical substrate assembled together with the first container, wherein the first optical substrate separates the first light-mixing space and the accommodating space, and the first light-mixing space is between the first sterilization light source and the first optical substrate.

11. The sterilization apparatus of claim 1 , further including:
a second sterilization light source; and
a second container accommodating the second sterilization light source, wherein the second container defines a second light-mixing space, the second container are assembled together with the sterilization container, and the sterilization container is between the first container and the second container.

12. The sterilization apparatus of claim 11 , wherein the first container has a first fluid in-outlet connected to the accommodating space.

13. The sterilization apparatus of claim 12 , wherein the first fluid in-outlet is through the first sterilization light source.

14. The sterilization apparatus of claim 12 , wherein the second container has a second fluid in-outlet connected to the accommodating space.

15. The sterilization apparatus of claim 14 , wherein the second fluid in-outlet is through the second sterilization light source.

16. The sterilization apparatus of claim 15 , further including:
a second optical substrate assembled together with the second container, wherein the second optical substrate separates the second light-mixing space and the accommodating space, and the second light-mixing space is between the second sterilization light source and the second optical substrate.

17. The sterilization apparatus of claim 1 , wherein the first sterilization light source provides a first minimum irradiance Amin for a top of the accommodating space in the sterilization container, and a second minimum irradiance Cmin for a bottom of the accommodating space in the sterilization container, and the Amin and the Cmin satisfy a formula of [2×|Amin−Cmin|/(Amin+Cmin)]×100%<25%.

18. The sterilization apparatus of claim 1 , wherein the first sterilization light source provides a first minimum irradiance Amin for a top of the accommodating space in the sterilization container, and a second minimum irradiance Cmin for a bottom of the accommodating space in the sterilization container, and the Amin and the Cmin satisfy a formula of [2×|Amin−Cmin/(Amin+Cmin)]×100%<20%.

19. The sterilization apparatus of claim 1 , wherein the first sterilization light source provides a first minimum irradiance Amin for a top of the accommodating space in the sterilization container, and a second minimum irradiance Cmin for a bottom of the accommodating space in the sterilization container, and the Amin and the Cmin satisfy a formula of [2×|Amin−Cmin|/(Amin+Cmin)]×100%<15%.

20. The sterilization apparatus of claim 1 , wherein the collimating unit includes a total internal reflection lens.

Assignees

• Ind Tech Res Inst

Inventors

• Koh Zhi-Wei
• Lu Chien-Chun
• Lee Chun-Hsing
• Hsu Chen-Peng

Classifications

• C02F1/003 Primary

  using household-type filters for producing potable water, e.g. pitchers, bottles, faucet mounted devices (C02F9/20 takes precedence) · CPC title

• C02F2307/02

  as part of a bottle · CPC title

• C02F2201/3228

  Units having reflectors, e.g. coatings, baffles, plates, mirrors · CPC title

• C02F2201/3227

  Units with two or more lamps · CPC title

• C02F2201/3222

  Units using UV-light emitting diodes [LED] · CPC title