LED light

Patent metadata

Field	Value
Publication number	US-9951939-B1
Application number	US-201715619499-A
Country	US
Kind code	B1
Filing date	Jun 11, 2017
Priority date	May 5, 2017
Publication date	Apr 24, 2018
Grant date	Apr 24, 2018

Abstract

An LED light includes a holder, a power supply electrically connected to the holder, a body electrically to the power supply, a connecting plate connects the power supply with the body, and a heat sink connected with the connecting plate. The heat sink includes a first cooling fin, a second cooling fin and a third cooling fin. The second cooling fin connects between the first and the third cooling fins. The first and the third cooling fins each include a rotational axis, and the connecting plate includes a pair of grooves to engage with a corresponding rotational axis. The first and the third cooling fins rotate relative to the second cooling fin via rotating the rotational axis, an angle within 180-360 degree is formed between the first and the third cooling fins and the second cooling fin. The configuration of heat sink may improve the heat radiation effects.

First claim

What is claimed is:

1. An LED light comprising:
a holder;
a power supply electrically connected to the holder;
a plurality of bodies electrically to the power supply;
a connecting plate connected the power supply with the plurality of bodies and comprising a pair of grooves;
a heat sink connected with the connecting plate and comprising a first cooling fin, a second cooling fin and a third cooling fin; the second cooling fin connected the first cooling fin with the third cooling fin; each of the first cooling fin and the third cooling fin comprising a rotational axis to rotationally engage with a corresponding groove of the connecting plate;
wherein an angle between 180 degree and 360 degree is formed between each of the first cooling fin and the third cooling fin and the second cooling fin, when each of the first cooling fin and the third cooling fin rotates relative to the second cooling fin via rotating their respective rotational axis in the corresponding groove; wherein the first cooling fin is adjacent to the third cooling fin when the angle is 360 degree, wherein the first cooling fin is positioned far away from the third cooling fin when the angle is 180 degree.

2. The LED light as claimed in claim 1 , wherein a gap is formed between every two adjacent cooling fins of the first cooling fin and the second cooling fin and the third cooling fin, each of the first cooling fin and the second cooling fin and the third cooling fin comprises a first recess for receiving the plurality of bodies therein.

3. The LED light as claimed in claim 2 , wherein the plurality of bodies cooperatively form a circle so as to obtain a light angle of 360 degree when the angle is 360 degree, while the plurality of bodies form a half circle so as to obtain a light angle of 180 degree when the angle is 180 degree.

4. The LED light as claimed in claim 1 , wherein the connecting plate comprises a first connecting plate, a second connecting plate and a third connecting plate, the second connecting plate positions between the first connecting plate and the third connecting plate, the first connecting plate, the second connecting plate and the third connecting plate connects with each other, end to end, each of the pair of grooves is formed on the first connecting plate and the third connecting plate, the first connecting plate and the third connecting plate are on the same plane, the second connecting plate is non-planar with the first connecting plate and the third connecting plate.

5. The LED light as claimed in claim 1 , wherein the LED light further comprises a baseboard tightly connected with the bottom of the heat sink, the baseboard comprises a first bottom plate tightly connected with the first cooling fin, a second bottom plate tightly connected with the second cooling fin, and a third bottom plate tightly connected with the third cooling fin.

6. The LED light as claimed in claim 5 , wherein the LED light further comprises a fixing plate tightly connected with the second bottom plate, both the first bottom plate and the third bottom plate movably connect with the fixing plate.

7. The LED light as claimed in claim 6 , wherein the first bottom plate comprises a first protrusion protruding upward from a topside near an end of the second bottom plate, the third bottom plate comprises a second protrusion protruding upward from a topside near the opposite end of the second bottom plate, the second bottom plate comprises a first stop and a second stop positioned on two opposite ends thereof, the first stop limits a movable position of the first protrusion and the second stop limits a movable position of the second protrusion when the first bottom plate and the third bottom plate respectively move relative to the fixing plate.

8. The LED light as claimed in claim 7 , wherein the first stop abuts against the first protrusion and the second stop abuts against the second protrusion when the angle between the first cooling fin, the third cooling fin and the second cooling fin is 360 degree, the first stop is out of touch with the first protrusion and the second stop is out of touch with the second protrusion when the angle between the first cooling fin, the third cooling fin and the second cooling fin is 180 degree.

9. The LED light as claimed in claim 5 , wherein the fixing plate comprises a plurality of through-holes extending from the top to the bottom therethrough, among the first bottom plate and the second bottom plate and the third bottom plate form an aperture, the aperture corresponds to the through-holes for heat radiation.

10. The LED light as claimed in claim 1 , wherein the LED light further comprises a wiring plate connected the connecting plate with the heat sink, the connecting plate comprises a second recess for receiving the wiring plate therein, one end of the wiring plate connects with the power supply and the opposite end of the wiring plate connects with the plurality of bodies.

11. The LED light as claimed in claim 1 , wherein the LED light further comprises a case, the case comprises a receiving space in the middle thereof for receiving the power supply therein.

12. The LED light as claimed in claim 11 , wherein the LED light further comprises a connecting member tightly connected the holder with the case.

Assignees

• Shenzhen Guanke Tech Co Ltd

Inventors

• Lan Qing

Classifications

• F21V19/003

  Fastening of light source holders, e.g. of circuit boards or substrates holding light sources · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21V23/02

  the elements being transformers, impedances {or power supply units, e.g. a transformer with a rectifier} · CPC title

• F21V29/77 Primary

  with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section · CPC title

• F21V23/06

  the elements being coupling devices {, e.g. connectors} · CPC title