Electromagnetic shield for use in a power system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H05K-009/00
H02M-001/44
H05K-007/14
H02J-003/36
출원번호
US-0524508
(2014-11-05)
등록번호
US-10243452
(2019-03-26)
국제출원번호
PCT/EP2014/073837
(2014-11-05)
국제공개번호
WO2016/070917
(2016-05-12)
발명자
/ 주소
Wu, Dong
Ni, Jing
Arevalo, Liliana
Montano, Raul
출원인 / 주소
ABB Schweiz AG
대리인 / 주소
Whitmyer IP Group LLC
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
An electromagnetic shield including a base portion and opposing recess walls extending from the base portion at an angle with respect to a plane in which the base portion extends, so as to, together with the base portion, define a recess. At least one recess wall may be arranged such that it has a d
An electromagnetic shield including a base portion and opposing recess walls extending from the base portion at an angle with respect to a plane in which the base portion extends, so as to, together with the base portion, define a recess. At least one recess wall may be arranged such that it has a distal edge with respect to the base portion, wherein the distal edge includes a cylindrical portion. In alternative or in addition, at least one recess wall may be arranged such that at least a portion thereof curves outwards or inwards with respect to the recess.
대표청구항▼
1. An electromagnetic shield for use in a power distribution or transmission system for electromagnetically shielding at least one electrically conductive element included in the power distribution or transmission system, the at least one electrically conductive element when energized generates an e
1. An electromagnetic shield for use in a power distribution or transmission system for electromagnetically shielding at least one electrically conductive element included in the power distribution or transmission system, the at least one electrically conductive element when energized generates an electric field around the at least one electrically conductive element, the electromagnetic shield comprising: a base portion; andopposing recess walls extending from the base portion at an angle with respect to a plane in which the base portion extends, so as to, together with the base portion, define a recess having a shape of a depression in the electromagnetic shield;the base portion and the opposing recess walls providing electromagnetic shielding that is configured to withstand an electric field generated by DC voltages of at least 500 kV around the at least one electrically conductive element of the power distribution or transmission system;wherein at least one recess wall of the opposing recess walls is arranged to have a distal edge with respect to the base portion, wherein the distal edge comprises a cylindrical portion. 2. The electromagnetic shield according to claim 1, wherein the cylindrical portion defines a distal end of the at least one recess wall with respect to the base portion. 3. The electromagnetic shield according to claim 2, wherein the cylindrical portion extends along substantially the entire length of the distal edge. 4. The electromagnetic shield according to claim 1, wherein the cylindrical portion extends along substantially the entire length of the distal edge. 5. The electromagnetic shield according to claim 1, wherein the cylindrical portion constitutes an end of the at least one recess wall or the distal edge. 6. The electromagnetic shield according to claim 1, wherein the cylindrical portion has a substantially circular cross section in a direction parallel with an axial extension. 7. The electromagnetic shield according to claim 1, wherein the at least one recess wall and the cylindrical portion are integrally arranged with respect to each other. 8. The electromagnetic shield according to claim 1, wherein at least one recess wall of the opposing recess walls is arranged such that at least a portion thereof curves outwards or inwards with respect to the recess. 9. The electromagnetic shield according to claim 8, wherein the at least one recess wall, which includes the at least a portion that curves, has a cross section in a direction perpendicular to a transverse direction of the at least one recess wall which has a rounded shape, a shape of a section of an oval, or a shape of a section of a circle. 10. The electromagnetic shield according to claim 9, wherein the section of a circle is larger than a quarter of a circle. 11. The electromagnetic shield according to claim 8, wherein the at least one recess wall which includes the at least a portion that curves, defines an elongated side wall of the recess. 12. The electromagnetic shield according to claim 1, wherein the recess walls are arranged to include corners which curve outwards or inwards with respect to the recess. 13. The electromagnetic shield according to claim 12, wherein the corners have a rounded, semioval or a semispherical shape. 14. The electromagnetic shield according to claim 1, wherein the recess walls are integrally arranged with respect to each other. 15. The electromagnetic shield according to claim 1, wherein the base portion and the recess walls are integrally arranged with respect to each other. 16. The electromagnetic shield according to claim 1, wherein the base portion is substantially planar. 17. The electromagnetic shield according to claim 1, wherein the base portion and the opposing recess walls are configured to provide electromagnetic shielding in a high voltage direct current (HVDC) application. 18. A power converter assembly that converts high voltage direct current to alternating current or alternating current to high voltage direct current, the power converter assembly comprising: at least one electromagnetic shield electromagnetically shielding at least one electrically conductive element of the power converter assembly, the electromagnetic shield including: a base portion; andopposing recess walls extending from the base portion at an angle with respect to a plane in which the base portion extends, so as to, together with the base portion, define a recess having a shape of a depression in the electromagnetic shield,wherein at least one recess wall of the opposing recess walls being arranged to have a distal edge with respect to the base portion, wherein the distal edge comprises a cylindrical portion;wherein the base portion and the opposing recess walls provide electromagnetic shielding that is configured to withstand an electric field generated by DC voltages of at least 500 kV around the at least one electrically conductive element. 19. A power distribution or transmission system comprising: at least one electrically conductive element; andan electromagnetic shield electromagnetically shielding the at least one electrically conductive element, the electromagnetic shield including: a base portion; andopposing recess walls extending from the base portion at an angle with respect to a plane in which the base portion extends, so as to, together with the base portion, define a recess having a shape of a depression in the electromagnetic shield, at least one recess wall of the opposing recess walls being arranged to have a distal edge with respect to the base portion, wherein the distal edge comprises a cylindrical portion;wherein the base portion and the opposing recess walls provide electromagnetic shielding that is configured to withstand an electric field generated by DC voltages of at least 500 kV around the at least one electrically conductive element of the power distribution or transmission system.
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