LIGHT EMITTING DIODE LAMP WITH LOW THERMAL RESISTANCE
First Claim
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1. A light emitting diode lamp, comprising:
- a first lead having a first top part and a leg extending from the first top part;
a second lead spaced apart from the first lead, and having a second top part adjacent the top part of the first lead and a leg extending from the second top part;
a light emitting diode mounted on the first top part;
a bonding wire connecting the light emitting diode to the second top part;
an encapsulating material surrounding the light emitting diode and the first and second top parts; and
a heat coupling member thermally coupling the first top part to the second top part, the heat coupling member being formed of an insulating material having a higher thermal conductivity than the encapsulating material.
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Abstract
Disclosed is a light emitting diode lamp that has low resistance to heat emitted therefrom. The LED lamp may include a heat coupling member thermally coupling a top part of a first lead to a top part of a second lead. The LED lamp may further include one or more top parts for lowering thermal resistance of the LED lamp. This configuration facilitates heat transfer from the first lead having an LED chip mounted thereon to the top part of the second lead and/or to the other top parts, lowering resistance to heat emitted from the LED lamp.
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Citations
20 Claims
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1. A light emitting diode lamp, comprising:
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a first lead having a first top part and a leg extending from the first top part; a second lead spaced apart from the first lead, and having a second top part adjacent the top part of the first lead and a leg extending from the second top part; a light emitting diode mounted on the first top part; a bonding wire connecting the light emitting diode to the second top part; an encapsulating material surrounding the light emitting diode and the first and second top parts; and a heat coupling member thermally coupling the first top part to the second top part, the heat coupling member being formed of an insulating material having a higher thermal conductivity than the encapsulating material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A light emitting diode lamp, comprising:
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a first lead having a first top part and a leg extending from the first top part; a second lead spaced apart from the first lead, and having a second top part adjacent the top part of the first lead and a leg extending from the second top part; a third top part disposed adjacent the first top part while being spaced apart from at least one of the first and second top parts; a light emitting diode mounted on the first top part; a bonding wire connecting the light emitting diode to the second top part; and an encapsulating material surrounding the light emitting diode and the first to third top parts. - View Dependent Claims (16, 17, 18)
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19. A light emitting diode lamp, comprising:
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a first lead having a first top part and a leg extending from the first top part, the first top part comprising an upper surface having an elongated rectangular shape, first opposite side surfaces connected to shorter edges of the upper surface and having smaller surface areas, second opposite side surfaces connected to longer edges of the upper surface and having larger surface areas, and a lower surface connected to the first and second opposite side surfaces; a second lead spaced apart from the first lead, and having a second top part disposed adjacent one of the second opposite side surfaces and a leg extending from the second top part; a light emitting diode mounted on the upper surface of the first top part; a bonding wire connecting the light emitting diode to the second top part; and an encapsulating material surrounding the light emitting diode, and the first and second top parts. - View Dependent Claims (20)
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Specification