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US 10,330,303 B2Granted
Light emitting device module with heat-sink and air guide
AssigneeLG Electronics Inc.
InventorsJinsung Kwak, Junhyung Kim, Hongseok Kim, Yongjin Kim, Seoyoung Jeong
Life of this patent
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Abstract
A module array includes a light emitting device module. The light emitting device module includes a light source unit, a body provided at one surface thereof with a seat on which the light source unit is seated, a plurality of radiation fins disposed on the other surface of the body opposite to one surface of the body, and an air hole perforated in the body from the seat to the radiation fins for the flow of air.
Claims17
A light emitting device module comprising:
- a body having a first side and a second side opposite to the first side;
- a light source unit located at the first side of the body;
- a plurality of radiation fins disposed on the second side of the body, the plurality of radiation fins extending from the second side of the body in a first direction;
- an air hole perforated in the body and extending from the first side of the body to the second side of the body for the flow of air therethrough;
- and
- an air guide located at the second side of the body and extending from the second side of the body in the first direction, the air guide being in communication with the air hole to guide the flow of air therethrough,
- wherein the air guide is configured to protrude from the second side of the body along a rim of the air hole,
- wherein the air guide is directly connected to at least two of the radiation fins,
- wherein the air guide is a cylindrical member having an inner space,
- wherein a rim of the air guide overlaps with the rim of the air hole,
- wherein an edge of the air guide is spaced from the second side of the body by a first distance,
- wherein an edge of end portions of the radiation fins is spaced from the second side of the body by a second distance, and an edge of a center portion of the radiation fins is spaced from the second side of the body by a third distance,
- wherein at least a part of the air guide overlaps with the center portion of the radiation fins, and
- wherein the first distance is greater than the third distance.
11 more elements
A light emitting device module comprising:
- a body having a lower side and an upper side opposite to the lower side;
- a light source unit located at the lower side of the body;
- a plurality of radiation fins disposed on the upper side of the body, the plurality of radiation fins extending from the upper side of the body in a first direction;
- a passive airflow promotion channel extending through the body from the lower side of the body to the upper side of the body, the passive airflow promotion channel including an air guide located at the upper side of the body and extending from the upper side of the body in the first direction, the passive airflow promotion channel being configured such that rising air heated by the light source unit at the lower side of the body is induced into the passive airflow promotion channel for passage therethrough to a location at the upper side of the body,
- wherein the passive airflow promotion channel further includes an air hole perforated in the body and extending from the lower side of the body to the upper side of the body for the flow of air therethrough, the air guide being in communication with the air hole to guide the flow of air therethrough,
- wherein the air guide is configured to protrude from the upper side of the body along a rim of the air hole,
- wherein the air guide is directly connected to at least two of the radiation fins,
- wherein the air guide is a cylindrical member having an inner space,
- wherein a rim of the air guide overlaps with the rim of the air hole,
- wherein an edge of the air guide is spaced from the upper side of the body by a first distance,
- wherein an edge of end portions of the radiation fins is spaced from the upper side of the body by a second distance, and an edge of a center portion of the radiation fins is spaced from the upper side of the body by a third distance,
- wherein at least a part of the air guide overlaps with the center portion of the radiation fins, and
- wherein the first distance is greater than the third distance.
10 more elements
A lighting apparatus comprising:
- a main body;
- and
- a light emitting device module received by said main body, the light emitting device module comprising:
- a body having a first side and a second side opposite to the first side;
- a light source unit located at the first side of the body;
- a plurality of radiation fins disposed on the second side of the body, the plurality of radiation fins extending from the second side of the body in a first direction;
- an air hole perforated in the body and extending from the first side of the body to the second side of the body for the flow of air therethrough;
- and
- an air guide located at the second side of the body and extending from the second side of the body in the first direction, the air guide being in communication with the air hole to guide the flow of air therethrough,
- wherein the air guide is configured to protrude from the second side of the body along a rim of the air hole,
- wherein the air guide is directly connected to at least two of the radiation fins,
- wherein the air guide is a cylindrical member having an inner space,
- wherein a rim of the air guide overlaps with the rim of the air hole,
- wherein an edge of the air guide is spaced from the second side of the body by a first distance,
- wherein an edge of end portions of the radiation fins is spaced from the second side of the body by a second distance, and an edge of a center portion of the radiation fins is spaced from the second side of the body by a third distance,
- wherein at least a part of the air guide overlaps with the center portion of the radiation fins, and
- wherein the first distance is greater than the third distance.
14 more elements
Dependencies are inferred from the claim text.