A SYSTEM AND METHOD FOR PROTECTING CABINETS FROM EMI

Abstract

The present invention relates to a grounding method and system for providing grounding and electromagnetic shielding to a cabinet configured for containing an ozone generator.

Claims

1. A cabinet for an ozone generator, said cabinet comprising: an enclosure for containing an ozone generator, wherein said enclosure comprises walls surrounding said ozone generator and at least one opening; a hatch for delimiting said enclosure; one or more grounds between said enclosure and said hatch; wherein said one or more grounds comprise at least: an elastic system fastened to at least two of said walls surrounding said ozone generator; wherein said elastic system comprises at least an elastic element suspended in a holder element and wherein said elastic element comprises a metal helical coil spring, and wherein said holder element comprises a spring bracket holding said metal helical coil spring; an elongated element having a first end and a second opposite end; said first end being fastened to said hatch, said second end configured to interfere with said elastic system; and wherein said second end is configured to interfere with said metal helical coil spring in a direction substantially orthogonal to a metal helical coil spring axis and, wherein said metal helical coil spring axis is the metal helical coil spring compression axis.

2-12. (canceled)

13. The cabinet according to claim 1, wherein said enclosure contains said ozone generator.

14. The cabinet according to claim 1, wherein said elastic system is a spring system.

15. The cabinet according to claim 1, wherein said elongated element is an elongated cylindrical body.

16. The cabinet according to claim 1, wherein said one or more grounds are at least two grounds located not more than 0.5 m in between each other.

17. An ozone generator apparatus comprising said cabinet according to claim 1.

18. A method for providing grounding and electromagnetic shielding to a cabinet containing an ozone generator, said cabinet comprising: an enclosure for containing an ozone generator, wherein said enclosure comprises walls surrounding said ozone generator and at least one opening; a hatch for delimiting said enclosure; one or more grounds between said enclosure and said hatch; wherein said one or more grounds comprise at least: an elastic system fastened to at least two of said walls surrounding said ozone generator; wherein said elastic system comprises at least an elastic element suspended in a holder element and wherein said elastic element comprises a metal helical coil spring, and wherein said holder element comprises a spring bracket holding said metal helical coil spring; an elongated element having a first end and a second opposite end; said first end being fastened to said hatch, said second end configured to interfere with said elastic system; and wherein said second end is configured to interfere with said metal helical coil spring in a direction substantially orthogonal to a metal helical coil spring axis, wherein said metal helical coil spring axis is the metal helical coil spring compression axis; said method comprising: closing said hatch, thereby allowing for said elongated element to interfere with said elastic system.

19. The method according to claim 18, wherein said enclosure contains said ozone generator.

20. The method according to claim 18, wherein said elastic system is a spring system.

21. The method according to claim 18, wherein said elongated element is an elongated cylindrical body.

22. The method according to claim 18, wherein said one or more grounds are at least two grounds located not more than 0.5 m in between each other.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0061] The cabinet for an ozone generator, the ozone generator apparatus and the method for providing grounding and electromagnetic shielding to the cabinet according to the invention will now be described in more details with regard to the accompanying figures. The figures show one way of implementing the present invention and are not to be construed as being limiting to other possible embodiments falling within the scope of the attached claim set.

[0062] FIG. 1A shows a graphical illustration of the cabinet for an ozone generator according to some embodiments of the invention.

[0063] FIG. 1B is an enlarged partial view of the cabinet focusing on the means for grounding according to some embodiments of the invention.

[0064] FIG. 2A and FIG. 2B are further enlarged partial view of the cabinet focusing on the means for grounding according to some embodiments of the invention while closing the hatch.

[0065] FIGS. 3, 4 and 5 show graphical illustrations of the elements of the means for grounding according to some embodiments of the invention.

DETAILED DESCRIPTION OF AN EMBODIMENT

[0066] FIG. 1A shows a graphical illustration of the cabinet 1 for an ozone generator according to some embodiments of the invention.

[0067] The cabinet 1 consists of an enclosure or container 2 in which the ozone generator (not shown) is contained and a hatch or door 3 that delimits the container and provides closure for the cabinet.

[0068] The one or more grounding means providing earth connection between the enclosure 2 and the hatch 3 are shown in FIG. 1B as the elastic system 5 comprising a spring 4 supported on a spring bracket 9 and a pin 6, according to some embodiments of the invention.

[0069] The spring bracket 9 is fasten inside the enclosure 2 at one corner.

[0070] The closure of the hatch 3 generates a ground connection as the pin 6 interferes with the spring 4 located on the spring bracket 9 as shown in FIG. 2A and FIG. 2B.

[0071] As clearly seen in FIGS. 2A and 2B, the pin 6 interferes with the spring 4 in a perpendicular direction to the compression axis of the spring 4.

[0072] The flexibility of spring 4 allows for a great deal of positing faults, so that even if pin 6 and spring 4 are not perfectly aligned, the points of contacts between the two elements provide sufficient EMI shielding so as to comply with EMC directive limits.

[0073] FIGS. 3, 4 and 5 show a graphical illustration of the spring bracket 9, the spring 4 and the pin 6 having a first end 7 fasten to the hatch and a second end 8 configured to interfere with the spring 4 supported by the spring bracket 9 according to some embodiments of the invention.

[0074] Although the present invention has been described in connection with the specified embodiments, it should not be construed as being in any way limited to the presented examples. The scope of the present invention is set out by the accompanying claim set. In the context of the claims, the terms “comprising” or “comprises” do not exclude other possible elements or steps. In addition, the mentioning of references such as “a” or “an” etc. should not be construed as excluding a plurality. The use of reference signs in the claims with respect to elements indicated in the figures shall also not be construed as limiting the scope of the invention. Furthermore, individual features mentioned in different claims, may possibly be advantageously combined, and the mentioning of these features in different claims does not exclude that a combination of features is not possible and advantageous.