LAMP
First Claim
1. A lamp comprising:
- a housing including an end forming a light-transparent portion and another end forming a base, with an air inlet portion and an air outlet portion formed in a wall of the housing;
a heat sink mounted inside the housing and including a base plate and a plurality of fins surrounding the base plate to define a compartment, with the fins being close to the air outlet portion of the housing, with each of the fins having a first end facing the air inlet portion of the housing and a second end connecting with the base plate;
a light emitter fixed to the base plate of the heat sink, facing the light-transparent portion of the housing and being electrically connected to the base of the housing;
a fan fixed inside the compartment of the heat sink;
a blocking ring mounted inside the housing and positioned between the air inlet portion and the heat sink, with a center hole of the blocking ring being aligned with the compartment of the heat sink.
1 Assignment
0 Petitions
Accused Products
Abstract
A lamp includes a housing, a heat sink, a light emitter, a fan and a blocking ring. The housing has an air inlet portion and an air outlet portion formed in a wall of the housing. The heat sink includes a base plate and a plurality of fins surrounding the base plate to define a compartment. Each of the fins have a first end facing the air inlet portion of the housing and a second end connecting with the base plate. The light emitter is fixed to the base plate of the heat sink. The fan is fixed inside the compartment of the heat sink. The blocking ring is mounted between the air inlet portion and the heat sink. Accordingly, the blocking ring blocks part of the heated airflow from flowing back to the air inlet portion and turbulence is avoided effectively. Therefore, the airflow inside the housing can flow smoothly through the air outlet to transfer heat to the environment and heat dissipating efficiency is enhanced.
39 Citations
15 Claims
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1. A lamp comprising:
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a housing including an end forming a light-transparent portion and another end forming a base, with an air inlet portion and an air outlet portion formed in a wall of the housing; a heat sink mounted inside the housing and including a base plate and a plurality of fins surrounding the base plate to define a compartment, with the fins being close to the air outlet portion of the housing, with each of the fins having a first end facing the air inlet portion of the housing and a second end connecting with the base plate; a light emitter fixed to the base plate of the heat sink, facing the light-transparent portion of the housing and being electrically connected to the base of the housing; a fan fixed inside the compartment of the heat sink; a blocking ring mounted inside the housing and positioned between the air inlet portion and the heat sink, with a center hole of the blocking ring being aligned with the compartment of the heat sink. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A lamp, comprising:
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a housing including a first shell and a second shell assembled together, with the first shell having an end forming a light-transparent portion and another end forming a first engaging portion, with an air outlet portion formed in a wall of the first shell, with the second shell having an end forming a second engaging portion and another end forming a base, with an air inlet portion formed in a wall of the second shell; a heat sink mounted inside the housing and including a base plate and a plurality of fins surrounding the base plate to define a compartment, with the fins being close to the air outlet portion of the housing, with each of the fins having a first end facing the air inlet portion of the housing and a second end connecting with the base plate; a light emitter fixed to the base plate of the heat sink, facing the light-transparent portion of the housing and being electrically connected to the base of the housing; a fan fixed inside the compartment of the heat sink; a blocking ring mounted inside the housing and positioned between the air inlet portion and the heat sink, with a center hole of the blocking ring being aligned with the compartment of the heat sink, with the blocking ring having two sides respectively forming a first flange and a second flange in an axial direction, with the first engaging portion of the first shell coupling to the first flange and the second engaging portion of the second shell coupling to the second flange. - View Dependent Claims (12, 13, 14, 15)
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Specification