Lamp unit, and lighting device and vehicle lamp using same
First Claim
Patent Images
1. A lamp unit comprising:
- a light emitting diode (LED) light source including a printed circuit board and a LED device disposed on a first surface of the printed circuit board;
a support part provided to support the LED light source;
a transfer part provided to face the LED light source; and
a connection part provided between a first edge of the support part and a first edge of the transfer part,wherein the support part is bent in a vertical direction from a first edge of the connection part,wherein the transfer part is bent to face the support part from a second edge of the connection part,wherein the support part and the transfer part are formed of a same material as the connection part,wherein the first surface of the printed circuit board is overlapped with the transfer part and support part in a horizontal direction orthogonal to the vertical direction,wherein a first end of the printed circuit board faces a first surface of the connection part and is spaced apart from the first surface of the connection part,wherein the transfer part includes an opening facing an emitting surface of the LED device and a light transfer part disposed on the opening penetrating a body of the transfer part,wherein the light transfer part of the transfer part transmits light generated from the LED device, andwherein the support part, the connection part, and the transfer part combine to form a thermally conductive frame, and heat of the LED light source is transferred by conduction to the support part, the connection part, and the transfer part and by convection from the thermally conductive frame.
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Abstract
The present invention relates to a lamp unit employing a high-efficiency heat radiation solution for an LED light source, and a lighting device and a vehicle lamp using the same, and the lamp unit comprises an LED light source, a support part for supporting the LED light source, a transfer part facing the LED light source, and a connection part for connecting the support part and the transfer part, wherein the support part, the connection part and the transfer part are provided as thermal conductive members and emit heat of the LED light source to the outside in the form of conduction energy and radiation energy.
14 Citations
20 Claims
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1. A lamp unit comprising:
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a light emitting diode (LED) light source including a printed circuit board and a LED device disposed on a first surface of the printed circuit board; a support part provided to support the LED light source; a transfer part provided to face the LED light source; and a connection part provided between a first edge of the support part and a first edge of the transfer part, wherein the support part is bent in a vertical direction from a first edge of the connection part, wherein the transfer part is bent to face the support part from a second edge of the connection part, wherein the support part and the transfer part are formed of a same material as the connection part, wherein the first surface of the printed circuit board is overlapped with the transfer part and support part in a horizontal direction orthogonal to the vertical direction, wherein a first end of the printed circuit board faces a first surface of the connection part and is spaced apart from the first surface of the connection part, wherein the transfer part includes an opening facing an emitting surface of the LED device and a light transfer part disposed on the opening penetrating a body of the transfer part, wherein the light transfer part of the transfer part transmits light generated from the LED device, and wherein the support part, the connection part, and the transfer part combine to form a thermally conductive frame, and heat of the LED light source is transferred by conduction to the support part, the connection part, and the transfer part and by convection from the thermally conductive frame. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A lighting apparatus comprising:
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a light emitting diode (LED) light source including a printed circuit board and a LED device disposed on a first surface of the printed circuit board; a support part provided to support the LED light source; a transfer part provided to face the LED light source; a connection part provided between a first edge of the support part and a lower edge of the transfer part; a lamp housing provided to receive the LED light source, the support part, the connection part and the transfer part; and an outer lens facing the LED light source and provided on one surface of the lamp housing, wherein the support part is bent in a vertical direction from a first edge of the connection part, wherein the transfer part is bent to face the support part from a second edge of the connection part, wherein the support part and the transfer part are formed of a same material as the connection part, wherein the first surface of the printed circuit board is overlapped with the transfer part and support part in a horizontal direction orthogonal to the vertical direction, wherein a first end of the printed circuit board faces a first surface of the connection part and is spaced apart from the first surface of the connection part, wherein the transfer part includes an opening facing an emitting surface of the LED device and a light transfer part disposed on the opening penetrating a body of the transfer part, wherein the light transfer part of the transfer part transmits light generated from the LED device, wherein the support part, the connection part, and the transfer part combine to form a thermally conductive frame, and heat of the LED light source is transferred by conduction to the support part, the connection part, and the transfer part and by convection from the thermally conductive frame and through an opening of the lamp housing. - View Dependent Claims (9, 10, 11, 12)
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13. A vehicle lamp comprising:
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a light emitting diode (LED) light source including a printed circuit board and a LED device disposed on a first surface of the printed circuit board; a support part provided to support the LED light source; a transfer part provided to face the LED light source; a connection part that connects a first edge of the support part and a first edge of the transfer part; a lamp housing provided to receive the LED light source, the support part, the connection part, and the transfer part; and an outer lens facing the LED light source and provided on one surface of the lamp housing, wherein the support part is bent in a vertical direction from a first edge of the connection part, wherein the transfer part is bent to face the support part from a second edge of the connection part, wherein the support and the transfer part are formed of a same material as the connection part, wherein the first surface of the printed circuit board is overlapped with the transfer part and support part in a horizontal direction orthogonal to the vertical direction, wherein a first end of the printed circuit board faces a first surface of the connection part and is spaces apart from the first surface of the connection part, wherein the transfer part includes an opening facing an emitting surface of the LED device and light transfer part is disposed on the opening penetrating a body of the transfer part, wherein the light transfer part of the transfer part transmits light generated from the LED device, wherein the support part, the connection part, and the transfer part combine to form a thermally conductive frame, and heat of the LED light source is transferred by conduction through the thermally conductive frame, through an opening to the lamp housing by convection, and through the outer lens by radiation. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification