Rotation light source device and lamp system thereof

Patent metadata

Field	Value
Publication number	US-11788698-B2
Application number	US-202117517173-A
Country	US
Kind code	B2
Filing date	Nov 2, 2021
Priority date	May 6, 2021
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

A lamp system applied to a vehicle according to the present disclosure is provided with any one of a reflector, an optical member, a digital micromirror display (DMD), a shield, or a shield optical module, and combined with a rotation light source device for generating light of a specific LED turned on at a synchronized rotation position of one or more LED chips of first to Nth LED chips (N is an integer of 2 or more) per one rotation while being rotated by a current application of a signal transmitter receiving a lamp turn-on signal of the vehicle, thereby generating various lighting patterns even while eliminating all problems of increasing the layout/decreasing the light amount/increasing the amount of property changed, lowering the reflection efficiency/transmission efficiency, and losing the optical efficiency with the circular LED array.

First claim

What is claimed is:

1. A rotation light source device comprising:
a rotation mechanism configured to receive a rotation force of a power source;
an LED circuit unit including a plurality of LED chips and rotatable by the rotation mechanism, the plurality of LED chips comprising first to Nth LED chips, where N is an integer of 2 or more; and
a signal transmitter configured to transmit a synchronization signal for a position and a current application signal for turn-on to the LED circuit unit such that light is emitted by an LED chip reaching a turn-on position of the first to Nth LED chips per one rotation while the first to Nth LED chips rotate together with the LED circuit unit,
wherein the rotation mechanism comprises:
a rotation force transmitter rotatable by the power source; and
a rotation force receiver fixed to the LED circuit unit and coaxially connected to the rotation force transmitter to deliver a rotation force.

2. The rotation light source device of claim 1 ,
wherein the rotation force transmitter and the rotation force receiver have a shape of a hollow cylinder to form a coupling section delivering the rotation force, and
wherein the coupling section includes a circular rotation section in which some portions of the rotation force transmitter and some portions of the rotation force receiver are circularly coupled.

3. The rotation light source device of claim 2 ,
wherein the circular rotation section has the rotation force transmitter including a plurality of insertion legs, and the rotation force receiver including a plurality of fixing legs to be adjacent to each other to form a circle, the plurality of insertion legs comprising first to Nth insertion legs and the plurality of fixing legs comprising first to Nth fixing legs, where N is an integer of 2 or more.

4. The rotation light source device of claim 1 ,
wherein the rotation force transmitter and the rotation force receiver have a shape of a hollow cylinder to form a coupling section delivering the rotation force,
wherein the coupling section includes a concentric rotation section in which some portions of the rotation force transmitter and some portions of the rotation force receiver overlap in an axial direction of the rotation force transmitter or rotation force receiver, or
an intersecting concentric rotation section in which some portions of the rotation force transmitter and some portions of the rotation force receiver overlap in the axial direction to form a concentric circle, and some portions of a power receiver are adjacent to some portions of the rotation force transmitter to form a circle.

5. The rotation light source device of claim 4 ,
wherein the concentric rotation section has the rotation force transmitter including a plurality of stators, and the rotation force receiver including a plurality of permanent magnets to form a concentric circle with respect to the rotation force transmitter.

6. The rotation light source device of claim 4 ,
wherein the intersecting concentric rotation section has the rotation force receiver including a plurality of permanent magnets, and the power receiver including a plurality of power reception legs to form a circle adjacent to each other, the plurality of power reception legs comprising first to Nth power reception legs, where N is an integer of 2 or more, and
has the rotation force transmitter including a plurality of stators to form a concentric circle with respect to the rotation force receiver and the power receiver.

7. The rotation light source device of claim 6 ,
wherein the power receiver generates power by electromagnetic force induction with the rotation force transmitter, and
wherein the power is supplied to the first to Nth LED chips as a current to substitute the current application signal transmitted by the signal transmitter.

8. The rotation light source device of claim 1 ,
wherein the first to Nth LED chips are configured in an LED combination of a YELLOW LED, a RED LED, a BLUE LED, and a GREEN LED, and
wherein the LED combination implements any one of a WHITE color lighting of the YELLOW LED and the BLUE LED, a WHITE color lighting of the BLUE LED and the GREEN LED, or an AMBER color lighting of the GREEN LED, the YELLOW LED, and the RED LED.

9. The rotation light source device of claim 1 ,
wherein the first to Nth LED chips are disposed on an outer circumference of the LED circuit unit, and
configured to illuminate light to an outside of the LED circuit unit.

10. The rotation light source device of claim 1 ,
wherein the first to Nth LED chips are disposed on any one of an inner circumference, a front flat plate, a front convex cone, or a front concave cone of the LED circuit unit.

11. The rotation light source device of claim 10 ,
wherein the first to Nth LED chips condense the light luminated from the inner circumference to an inside of the LED circuit unit.

12. The rotation light source device of claim 10 ,
wherein the first to Nth LED chips match an optical axis of the LED circuit unit with a rotation axis of the rotation mechanism on the front flat plate.

13. The rotation light source device of claim 10 ,
wherein the first to Nth LED chips tilt the light upwardly with respect to the LED circuit unit on the front convex cone.

14. The rotation light source device of claim 10 ,
wherein the first to Nth LED chips tilt the light downwardly with respect to the LED circuit unit on the front concave cone.

15. The rotation light source device of claim 1 ,
wherein the signal receiver simultaneously applies the synchronization signal and the current application signal to the LED circuit unit or applies any one of the synchronization signal or the current application signal and separately applies a remaining one of the synchronization signal or the current application signal.

16. The rotation light source device of claim 1 ,
wherein the signal receiver forms synchronization with an LED light reaching a turn-on position of the first to Nth LED chips at any one position of an outer circumference, an inner circumference, a front flat plate, a front convex cone, or a front concave cone of the LED circuit unit.

Assignees

• Hyundai Motor Co Ltd
• Kia Corp

Inventors

• Hong Seung-Pyo

Classifications

• F21S10/063 Primary

  for providing a rotating light effect · CPC title

• F21V7/04

  Optical design · CPC title

• F21V11/08

  using diaphragms containing one or more apertures · CPC title

• F21V23/003

  the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array · CPC title

• H02K21/24

  with magnets axially facing the armatures, e.g. hub-type cycle dynamos · CPC title