Heat-dissipating apparatus and illuminator using the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F21V-029/02
F21K-099/00
F21Y-101/02
출원번호
US-0886722
(2010-09-21)
등록번호
US-9103537
(2015-08-11)
우선권정보
KR-10-2009-0089868 (2009-09-23)
발명자
/ 주소
Maeng, Seoyoung
출원인 / 주소
LG ELECTRONICS INC.
대리인 / 주소
Birch, Stewart, Kolasch & Birch, LLP
인용정보
피인용 횟수 :
1인용 특허 :
2
초록▼
Disclosed is a heat-dissipating apparatus and an illuminator using the same. The heat-dissipating apparatus includes a heat sink including one side contacted with a heat generating portion and the other side having heat-dissipating pins arranged at the edge thereof and a space formed inside the heat
Disclosed is a heat-dissipating apparatus and an illuminator using the same. The heat-dissipating apparatus includes a heat sink including one side contacted with a heat generating portion and the other side having heat-dissipating pins arranged at the edge thereof and a space formed inside the heat-dissipating pins; and a driver that is positioned in the space and keeps the heat-dissipating pins cool by sucking outside air and discharging inside air with a pumping operation.
대표청구항▼
1. A heat-dissipating apparatus comprising: a heat sink having one side configured to contact a heat generating portion and another side having a plurality of heat-dissipating pins arranged at the edge thereof, the plurality of heat-dissipating pins defining a space in the heat sink; anda driver pos
1. A heat-dissipating apparatus comprising: a heat sink having one side configured to contact a heat generating portion and another side having a plurality of heat-dissipating pins arranged at the edge thereof, the plurality of heat-dissipating pins defining a space in the heat sink; anda driver positioned in the space, the driver configured to keep the heat-dissipating pins cool by sucking outside air into the driver and discharging inside air out of the driver with a pumping operation, the driver including: a housing having a wall including a plurality of air flow slots formed therein, the wall defining a through hole such that the housing has a first open end and a second open end;first and second vibrating plate respectively located in the first and second open ends in order to have opposite vibrating phases relative to each other; andan actuator assembly configured to vibrate the first and second vibrating plates such that inside air in the housing is discharged through the plurality of air flow slots and outside air is sucked into the housing through the plurality of air flow slots, the actuator assembly including: a first actuator configured to vibrate the first vibrating plate; anda second actuator configured to vibrate the second vibrating plate,wherein the first vibrating plate includes first and second guide portions located thereon,the second vibrating plate has third and fourth guide portions located thereon,the housing includes a supporting portion extending from an inner surface of the wall of the housing,the first actuator includes first and second magnets mounted on the inner surface of the wall of the housing and first and second coils arranged opposite the first and second magnets, respectively, the first and second magnets being separated from each other and having upper and lower portions that are different in their polarities, and the first and second coils being wound on the first and second guide portions, respectively, andthe second actuator includes a third magnet fixed to the supporting portion, the third magnet being formed in a shape of a square pillar, and third and fourth coils arranged at two sides around the third magnet, the third and fourth coils being oppositely formed relative to each other and separated from the third magnet. 2. The heat-dissipating apparatus according to claim 1, wherein each of the first and second actuators is configured to vibrate the first and second vibrating plates, respectively, using electromagnetic force generated between a magnet and a coil. 3. The heat-dissipating apparatus according to claim 1, further comprising a current applier configured such that a sinusoidal wave current is applied to the first to fourth coils such that the first and second vibrating plates oppositely move up and down relative to each other by being vibrated by the electromagnetic force respectively generated by the first to fourth coils and the first to third magnets. 4. The heat-dissipating apparatus according to claim 1, further comprising at least one of a plurality of projections formed on a lower surface of the housing and a plurality of projections formed on the heat sink. 5. The heat-dissipating apparatus according to claim 1, wherein the heat-dissipating pins are arranged opposite the air flow slots of the housing. 6. The heat-dissipating apparatus according to claim 1, wherein each of the heat-dissipating pins includes a bent portion. 7. The heat-dissipating apparatus according to claim 1, further including the heat generating portion, the heat generating portion including at least one of a light emitting diode illuminator, a central processing unit, a back light, a display apparatus, a hard disk drive, a portable terminal, a notebook computer, a computer module, and a projector. 8. The heat-dissipating apparatus according to claim 1, wherein the second actuator further includes two coils being arranged between the third and fourth coils, respectively, and arranged at two other sides around the third magnet, and the two coils are oppositely formed relative to each other and separated from the third magnet. 9. The heat-dissipating apparatus according to claim 1, wherein the first and second guide portions are arranged on a first axis and the third and fourth guide portions are arranged on a second axis, the second axis being formed perpendicular to the first axis. 10. An illuminator including: a heat sink having a plurality of pins formed thereon;an active cooling portion connected to the heat sink for cooling the heat sink by sucking or discharging outside air with a pumping operation; anda light emitting diode emitting light, where generated heat is transferred to the heat sink,wherein the active cooling portion includes: a housing having a wall including a plurality of air flow slots formed therein, the wall defining a though hole such that the housing has a first open end and a second open end;first and second vibrating plates respectively located in the first and second open ends in order to have opposite vibrating phases relative to each other; andan actuator assembly configured to vibrate the first and second vibrating plates such that inside air in the housing is discharged through the plurality of air flow slots and outside air is sucked into the housing through the plurality of air flow slots, the actuator assembly including: a first actuator configured to vibrate the first vibrating plate; anda second actuator configured to vibrate the second vibrating plate,wherein the first vibrating plate includes first and second guide portions located thereon,the second vibrating plate has third and fourth guide portions located thereon,the housing includes a supporting portion extending from an inner surface of the wall of the housing,the first actuator includes first and second magnets mounted on the inner surface of the wall of the housing and first and second coils arranged opposite the first and second magnets, respectively, the first and second magnets being separated from each other and having upper and lower portions that are different in their polarities, and the first and second coils being wound on the first and second guide portions, respectively, andthe second actuator includes a third magnet fixed to the supporting portion, the third magnet being formed in a shape of a square pillar, and third and fourth coils arranged at two sides around the third magnet, the third and fourth coils being oppositely formed relative to each other and separated from the third magnet. 11. The illuminator according to claim 10, wherein the heat sink has an opening through which air is circulated. 12. The illuminator according to claim 10, wherein the heat sink has a through hole formed therein, and the illuminator further includes: a socket having a driver to drive the light emitting diode inserted into the through hole; andan E-base electrode structure connected to the socket, the E-base electrode extending outside the heat sink. 13. The illuminator according to claim 10, wherein the heat sink has a through hole formed therein, and the illuminator further includes: a socket having a driver to drive the light emitting diode inserted into the through hole; anda pair of leads connected to the socket, the pair of leads extending outside the heat sink. 14. The illuminator according to claim 10, further comprising a diffuser configured to diffuse and transmit light emitted from the light emitting diode. 15. The illuminator according to claim 10, further including a printed circuit board on which the light emitting diode is mounted. 16. The illuminator according to claim 10, wherein the plurality of pins is formed on a side of the heat sink, and the light emitting diode is positioned in an inner area of the heat sink. 17. The illuminator according to claim 10, wherein the heat sink is coupled to a case, and the active cooling portion is located in the case. 18. The illuminator according to claim 10, wherein each of the plurality of pins is bent in a predetermined direction.
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