De-icing arrangement and method for de-icing a structural element
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B64D-015/12
H01L-041/04
B64D-015/16
F03D-080/40
출원번호
US-0441017
(2012-11-08)
등록번호
US-9882114
(2018-01-30)
국제출원번호
PCT/SE2012/051211
(2012-11-08)
국제공개번호
WO2014/074034
(2014-05-15)
발명자
/ 주소
Hådén, Bertil
Bäckström, Mats
출원인 / 주소
SAAB AB
대리인 / 주소
Venable LLP
인용정보
피인용 횟수 :
0인용 특허 :
17
초록▼
A de-icing arrangement and a method for de-icing a structural element. The de-icing arrangement includes at least one electromagnetic actuator, a capacitive storage bank, a control unit arranged to provide an excitation pulse to the at least one electromagnetic actuator, and a charging circuit arran
A de-icing arrangement and a method for de-icing a structural element. The de-icing arrangement includes at least one electromagnetic actuator, a capacitive storage bank, a control unit arranged to provide an excitation pulse to the at least one electromagnetic actuator, and a charging circuit arranged to charge the capacitive storage bank. The at least one electromagnetic actuator is arranged to expand in at least one direction when fed with the excitation pulse. The at least one electromagnetic actuator is arranged in relation to the structural element so as to apply a mechanical force caused by the expansion on the structural element. The control unit is arranged to control cutoff of current discharge of the capacitive storage bank into the at least one electromagnetic actuator so as to abort the excitation pulse at a predetermined timing after start of the excitation pulse.
대표청구항▼
1. De-icing arrangement for de-icing a structural element, said de-icing arrangement comprising: at least one electromagnetic actuator,a capacitive storage bank,a control unit arranged to provide an excitation pulse to the at least one electromagnetic actuator, anda charging circuit arranged to char
1. De-icing arrangement for de-icing a structural element, said de-icing arrangement comprising: at least one electromagnetic actuator,a capacitive storage bank,a control unit arranged to provide an excitation pulse to the at least one electromagnetic actuator, anda charging circuit arranged to charge the capacitive storage bank,wherein the at least one electromagnetic actuator is arranged to expand in at least one direction when fed with the excitation pulse,wherein the at least one electromagnetic actuator is placed in relation to said structural element so as to apply a mechanical force caused by the expansion on the structural element, andwherein the control unit is arranged to control cutoff of current discharge of the capacitive storage bank into the at least one electromagnetic actuator so as to abort the excitation pulse at a predetermined timing after start of the excitation pulse, such that the current discharge of the capacitive storage bank into the at least one electromagnetic actuator generates a desired distribution between heating of the electromagnetic actuator and mechanical power. 2. The de-icing arrangement according to claim 1, wherein the charging circuit is arranged to charge the capacitive storage bank after a predetermined number of excitation pulses. 3. The de-icing arrangement according to claim 1, wherein the structural element comprises a base forming a support for the at least one electromagnetic actuator and a flexible skin, wherein the at least one electromagnetic actuator is arranged in relation to the flexible skin so as to apply the force on the flexible skin at the expansion. 4. The de-icing arrangement according to claim 1, wherein the control unit is arranged to control the predetermined timings for a plurality of consecutive excitation pulses so that the at least one electromagnetic actuator generates a desired distribution between heat and mechanical power. 5. The de-icing arrangement according to claim 4, wherein the control unit is arranged to control the predetermined timings for excitation of the electromagnetic actuator based on at least one of the following parameters: temperature, humidity, ice thickness at the structural element, ice thickness growth, speed and altitude. 6. The de-icing arrangement according to claim 1, wherein the control unit is arranged to operate in at least two modes of operation, wherein in the first mode de-icing is performed mechanically by the excitation pulse and a second mode of operation wherein de-icing is performed mechanically and thermally, wherein in the second mode the structural element is heated by the electromagnetic actuator. 7. The de-icing arrangement according to claim 6, wherein in the first mode the predetermined time period is shorter than in the second mode. 8. The de-icing arrangement according to claim 7, wherein in the second mode of operation the predetermined time period is selected such that the capacitive storage bank is substantially entirely discharged. 9. A structure, comprising a structural element; andat least one de-icing arrangement configured to de-ice the structural element, the at least one de-icing arrangement comprising at least one electromagnetic actuator,a capacitive storage bank,a control unit arranged to provide an excitation pulse to the at least one electromagnetic actuator, anda charging circuit arranged to charge the capacitive storage bank,wherein the at least one electromagnetic actuator is arranged to expand in at least one direction when fed with the excitation pulse,wherein the at least one electromagnetic actuator is placed in relation to said structural element so as to apply a mechanical force caused by the expansion on the structural element, andwherein the control unit is arranged to control cutoff of current discharge of the capacitive storage bank into the at least one electromagnetic actuator so as to abort the excitation pulse at a predetermined timing after start of the excitation pulse, such that the current discharge of the capacitive storage bank into the at least one electromagnetic actuator generates a desired distribution between heating of the electromagnetic actuator and mechanical power. 10. The structural element according to claim 9, wherein the structural element forms part of an aircraft. 11. The structural element according to claim 9, wherein the structural element forms part of a wind power turbine. 12. A method for de-icing a structural element, said method comprising: providing an excitation pulse to at least one electromagnetic actuator, whereby the at least one electromagnetic actuator is expanded in at least one direction in response to the received excitation pulse, wherein the at least one electromagnetic actuator is arranged in an abutting relation to said structural element so as to, when expanded, apply a force on the structural element,wherein providing the excitation pulse to at least one electromagnetic actuator comprises controlling cutoff of current discharge of a capacitive storage bank into the at least one electromagnetic actuator so as to abort the excitation pulse at a predetermined timing after start of the pulse, such that the current discharge of the capacitive storage bank into the at least one electromagnetic actuator generates a desired distribution between heating of the electromagnetic actuator and mechanical power. 13. The method for de-icing a structural element according to claim 12, further comprising: controlling charging of the capacitive storage bank by a charging circuit. 14. A computer program product, comprising: a non-transitory computer readable medium comprising a program code for carrying out a method for de-icing a structural element, the method comprisingproviding an excitation pulse to at least one electromagnetic actuator, whereby the at least one electromagnetic actuator is expanded in at least one direction in response to the received excitation pulse, wherein the at least one electromagnetic actuator is arranged in an abutting relation to said structural element so as to, when expanded, apply a force on the structural element,wherein providing the excitation pulse to at least one electromagnetic actuator comprises controlling cutoff of current discharge of a capacitive storage bank into the at least one electromagnetic actuator so as to abort the excitation pulse at a predetermined timing after start of the pulse, such that the current discharge of the capacitive storage bank into the at least one electromagnetic actuator generates a desired distribution between heating of the electromagnetic actuator and mechanical power.
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이 특허에 인용된 특허 (17)
Adams Lowell J. (Dayton OH) Weisend ; Jr. Norbert A. (Cuyahoga Falls OH) Pisarski Nathan (Stow OH) Simshauser Steven C. (Akron OH), De-icer adapted for installment on the inner surface of a structural member.
Zieve Peter B. (Seattle WA) Smith Samuel O. (Woodinville WA), Electromagnetic repulsion system for removing contaminants such as ice from the surfaces of aircraft and other objects.
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