Light emitting device for automobile wheel

• US 10,442,242 B2
• Filed: 03/23/2016
• Issued: 10/15/2019
• Est. Priority Date: 03/27/2015
• Status: Active Grant

• Current Assignee: Optoelec Company Limited
• Original Assignee: Bosswell Korea, Inc.
• Inventors: Bai, Chang Soo
• Primary Examiner(s): Kotter, Kip T
• Application Number:
  US15/546,660
• Publication Number:
  US 20180022149A1
• Time in Patent Office: 1,301 Days
• CPC Class Codes: B60B 19/06 with compartments for fluid, packing or loading material; Buoyant wheels
• CPC Class Codes: B60B 27/0047 characterised by functional integration of other elements
• CPC Class Codes: B60B 2900/572 Visual appearance
• CPC Class Codes: B60B 7/0013 Hub caps
• CPC Class Codes: B60B 7/0053 the surface being decorated
• CPC Class Codes: B60B 7/006 the surface being reflective or including lighting
• CPC Class Codes: B60B 7/04 built-up of several main parts B60B7/01, B60B7/20 take precedence
• CPC Class Codes: B60B 7/066 to the hub
• CPC Class Codes: B60B 7/20 having an element mounted for rotation independently of wheel rotation
• CPC Class Codes: B60Q 1/326 on or for wheels
• CPC Class Codes: B60R 16/0307 using generators driven by a machine different from the vehicle motor

Abstract

A light emitting device for an automobile wheel is capable of generating electrical energy through torque of an automobile wheel, illuminating an advertisement member using the generated electrical energy, and controlling the advertisement member to display advertisement contents at a correct posture without being tilted in response to a reverse magnetic field generated during the electricity generation process.

Claims

1. A light emitting device for a wheel of an automobile, comprising:

a fixed member which is fixed to a hub of the wheel so that the fixed member rotates together with the wheel;

a rotor disposed on the fixed member, and is configured to generate a magnetic force while being rotated with the fixed member by rotations of the wheel;

a rotating shaft protruding from the fixed member;

a circuit board disposed on the rotating shaft;

a weight eccentrically disposed on the circuit board so as to maintain a fixed state of the circuit board;

a stator electrically connected to the circuit board, and configured to generate electrical energy using the magnetic force generated by the rotor while the wheel rotates;

a light emitting member electrically connected to the circuit board, and is configured to emit light using the electrical energy generated by the stator;

an idle rotation support body coupled to the rotating shaft, and having an end to which the circuit board is fixed so as not to rotate with the rotating shaft;

an advertisement member fixed to the idle rotation support body so as to display advertisement contents; and

an advertisement weight eccentrically disposed on the advertisement member so as to maintain the fixed state of the advertisement member,

wherein the idle rotation support body has bearings disposed at the outsides of both ends thereof, and the circuit board and the advertisement member are installed through the respective bearings.

2. The light emitting device of claim 1, wherein the weight is bent in a circular arc shape.

3. The light emitting device of claim 1, wherein the rotating shaft has a male screw thread formed on the outside of an end thereof, and

the idle rotation support body has a female screw thread formed at an end thereof such that the male screw thread is coupled to the female screw thread.

4. The light emitting device of claim 1, wherein the advertisement member has a thickness that increases toward the bottom from the top thereof.

5. The light emitting device of claim 1, wherein the advertisement weight is bent in a circular arc shape.

6. The light emitting device of claim 1, wherein the light emitting member comprises a first light emitting member mounted at an outer portion of the circuit board and a second light emitting member mounted at an inner portion of the circuit board, and

the second light emitting member irradiates light in a lateral direction toward the center of the circuit board.

7. The light emitting device of claim 6, further comprising a light guide plate having one side coupled to the circuit board and the other side coupled to the advertisement member by a predetermined connection member,

wherein the light irradiated from the second light emitting member is guided through total reflection in the light guide plate, and irradiated to the advertisement member.

8. The light emitting device of claim 7, wherein the light guide plate has minute optical patterns formed on a reflecting surface thereof, such the light guided to the light guide plate is distributed to the advertisement member.

9. The light emitting device of claim 8, wherein the optical patterns are more densely formed toward the outer portion from the center of the reflecting surface of the light guide plate.