LED lamp with a sleeve
First Claim
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1. An LED (light emitting diode) lamp comprising:
- a lamp shell including a lamp head, a lamp neck and a sleeve, the lamp head connects to the lamp neck which connects to the sleeve;
a passive heat dissipating element having a heat sink connected to the lamp shell;
a power source having a first portion and a second portion, wherein the first portion of the power source is disposed in the lamp neck, and the second portion of the power source is disposed in inner space of the sleeve; and
a light emitting surface connected to the heat sink of the passive heat dissipating element and comprising LED chips electrically connected to the power source;
wherein the sleeve of the lamp shell is made of a material having lower thermal conductivity than that of material of the heat sink;
wherein the sleeve of the lamp shell is encircle covered by the heat sink, such that the second portion of the power source and the heat sink of the passive heat dissipating element are thermally insulated by the sleeve to prevent thermal effecting from the heat sink to the power source in the sleeve.
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Abstract
An LED lamp includes: a lamp shell including a lamp head, a lamp neck and a sleeve; a passive heat dissipating element having a heat sink; a power source having a first portion and a second portion; and a light emitting surface comprising LED chips; wherein the sleeve of the lamp shell is made of a material having lower thermal conductivity than that of material of the heat sink; wherein the sleeve of the lamp shell is encircle covered by the heat sink, such that the second portion of the power source and the heat sink of the passive heat dissipating element are thermally insulated by the sleeve to prevent thermal effecting from the heat sink to the power source in the sleeve.
5 Citations
20 Claims
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1. An LED (light emitting diode) lamp comprising:
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a lamp shell including a lamp head, a lamp neck and a sleeve, the lamp head connects to the lamp neck which connects to the sleeve; a passive heat dissipating element having a heat sink connected to the lamp shell; a power source having a first portion and a second portion, wherein the first portion of the power source is disposed in the lamp neck, and the second portion of the power source is disposed in inner space of the sleeve; and a light emitting surface connected to the heat sink of the passive heat dissipating element and comprising LED chips electrically connected to the power source; wherein the sleeve of the lamp shell is made of a material having lower thermal conductivity than that of material of the heat sink; wherein the sleeve of the lamp shell is encircle covered by the heat sink, such that the second portion of the power source and the heat sink of the passive heat dissipating element are thermally insulated by the sleeve to prevent thermal effecting from the heat sink to the power source in the sleeve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification