Testing system capable of shielding from environment noise

Patent metadata

Field	Value
Publication number	US-11523551-B2
Application number	US-202017121657-A
Country	US
Kind code	B2
Filing date	Dec 14, 2020
Priority date	Nov 20, 2020
Publication date	Dec 6, 2022
Grant date	Dec 6, 2022

Abstract

A testing system capable of shielding from environment noise uses a foldable electromagnetic shielding box to isolate devices that will produce electromagnetic interference to a test object, so as to reduce the influence of these devices on the measurement of the test object. In an embodiment, measuring equipment and the test object are disposed in the foldable electromagnetic shielding box for being shielded from outside electromagnetic waves. In another embodiment, the measuring equipment is disposed in the foldable electromagnetic shielding box while the test object is disposed outside the foldable electromagnetic shielding box, so that the test object to be tested is shielded from electromagnetic waves from the measuring equipment. The foldable electromagnetic shielding box can be folded into a stack for convenience of storage or transport.

First claim

What is claimed is:

1. A testing system capable of shielding from environment noise, for measuring a test object, the testing system comprising:
a foldable electromagnetic shielding box, the foldable electromagnetic shielding box being formed by a plurality of plates, so that the foldable electromagnetic shielding box is operable to be unfolded to form an isolated room for accommodating the test object and is operable to be folded into a stack for storage or transport, the foldable electromagnetic shielding box having a channel connected to the isolated room;
a measuring equipment, disposed inside the isolated room for measuring the test object; and
a remote control apparatus, disposed outside the isolated room and connected to the measuring equipment through a cable to control operation of the measuring equipment, the cable passing through the channel.

2. The testing system capable of shielding from environment noise according to claim 1 , wherein the foldable electromagnetic shielding box comprises a waveguide tube, the plurality of plates comprise a side plate member, the side plate member has a through hole, and the waveguide tube is disposed on the through hole to form the channel.

3. The testing system capable of shielding from environment noise according to claim 2 , wherein the waveguide tube is detachably disposed on the side plate member.

4. The testing system capable of shielding from environment noise according to claim 3 , wherein the foldable electromagnetic shielding box comprises a cover, for sealing the through hole when the waveguide tube is detached from the side plate member.

5. The testing system capable of shielding from environment noise according to claim 2 , wherein the foldable electromagnetic shielding box comprises a metal brush ball squeezing into the channel.

6. The testing system capable of shielding from environment noise according to claim 1 , wherein the plate comprises a metal mesh and a metal frame fixed to periphery of the metal mesh.

7. The testing system capable of shielding from environment noise according to claim 1 , wherein the plurality of plates comprise a foldable n-shaped structure and two detachable plate members, the foldable n-shaped structure is foldable for storage, and the two detachable plate members detachably close two side openings of the foldable n-shaped structure to form the isolated room.

8. The testing system capable of shielding from environment noise according to claim 7 , wherein the foldable electromagnetic shielding box comprises a plurality of resilient metal pieces, disposed at fringes of the two side openings for simultaneously touching the two detachable plate members and the foldable n-shaped structure.

9. The testing system capable of shielding from environment noise according to claim 7 , wherein the foldable electromagnetic shielding box comprises conductive foam pieces, disposed at fringes of the two side openings for simultaneously touching the two detachable plate members and the foldable n-shaped structure.

10. The testing system capable of shielding from environment noise according to claim 7 , further comprising a grounded conductive plate, the foldable electromagnetic shielding box after being unfolded is closely placed on the grounded conductive plate to form the isolated room.

11. A testing system capable of shielding from environment noise, for measuring a test object, the testing system comprising:
a radio-frequency anechoic chamber;
a foldable electromagnetic shielding box, disposed inside the radio-frequency anechoic chamber, the foldable electromagnetic shielding box being formed by a plurality of plates, so that the foldable electromagnetic shielding box is operable to be unfolded to form an isolated room and is operable to be folded into a stack for storage or transport, the foldable electromagnetic shielding box having a channel connected to the isolated room;
a measuring equipment, disposed inside the isolated room for measuring the test object that is located inside the radio-frequency anechoic chamber and outside the isolated room; and
a remote control apparatus, disposed outside the radio-frequency anechoic chamber and connected to the measuring equipment through a cable to control operation of the measuring equipment, the cable passing through the channel.

12. The testing system capable of shielding from environment noise according to claim 11 , wherein the foldable electromagnetic shielding box comprises a waveguide tube, the plurality of plates comprise a side plate member, the side plate member has a through hole, and the waveguide tube is disposed on the through hole to form the channel.

13. The testing system capable of shielding from environment noise according to claim 12 , wherein the waveguide tube is detachably disposed on the side plate member.

14. The testing system capable of shielding from environment noise according to claim 13 , wherein the foldable electromagnetic shielding box comprises a cover, for sealing the through hole when the waveguide tube is detached from the side plate member.

15. The testing system capable of shielding from environment noise according to claim 12 , wherein the foldable electromagnetic shielding box comprises a metal brush ball squeezing into the channel.

16. The testing system capable of shielding from environment noise according to claim 11 , wherein the plate comprises a metal mesh and a metal frame fixed to periphery of the metal mesh.

17. The testing system capable of shielding from environment noise according to claim 11 , wherein the plurality of plates comprise a foldable n-shaped structure and two detachable plate members, the foldable n-shaped structure is foldable for storage, and the two detachable plate members detachably close two side openings of the foldable n-shaped structure to form the isolated room.

18. The testing system capable of shielding from environment noise according to claim 17 , wherein the foldable electromagnetic shielding box comprises a plurality of resilient metal pieces, disposed at fringes of the two side openings for simultaneously touching the two detachable plate members and the foldable n-shaped structure.

19. The testing system capable of shielding from environment noise according to claim 17 , wherein the foldable electromagnetic shielding box comprises conductive foam pieces, disposed at fringes of the two side openings for simultaneously touching the two detachable plate members and the foldable n-shaped structure.

20. The testing system capable of shielding from environment noise according to claim 17 , further comprising a grounded conductive plate, the foldable electromagnetic shielding box after being unfolded is closely placed on the grounded conductive plate to form the isolated room.

Assignees

• Inventec Pudong Tech Corp
• Inventec Corp

Inventors

• Lee Yung-Sen
• Chen Yuan-Ho

Classifications

• H05K9/0007

  Casings (standardised racks H05K9/0062) · CPC title

• H05K5/04

  Metal casings · CPC title

• H05K9/0069 Primary

  Methods for measuring the shielding efficiency; Apparatus therefor; Isolation container for testing · CPC title

• G01R31/00 Primary

  Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere ({measuring superconductive properties G01R33/1238;} testing line transmission systems H04B3/46; testing or measuring semiconductors or solid state devices during manufacture {H10P74/00}) · CPC title

• G01R31/006

  on road vehicles, e.g. automobiles or trucks (testing of ignition installations peculiar to internal combustion engines F02P17/00) · CPC title