Auto-operated dip switching mechanism

• US 20050057937A1
• Filed: 09/12/2003
• Published: 03/17/2005
• Est. Priority Date: 09/12/2003
• Status: Active Grant

• Current Assignee: Jui-Heng Tsai
• Original Assignee: Jui-Heng Tsai
• Inventors: Tsai, Jui-Heng
• Granted Patent: US 6,979,953 B2
• Time in Patent Office: Days
• US Class Current: 362/464
• CPC Class Codes: B60Q 1/1423 Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
• CPC Class Codes: B60Q 2300/052 Switching delay, i.e. the beam is not switched or changed instantaneously upon occurrence of a condition change
• CPC Class Codes: B60Q 2300/21 Manual control
• CPC Class Codes: B60Q 2300/42 oncoming vehicle

Abstract

An auto-operated dip switching mechanism includes a strong-light detector, a strong-light signal circuit, and a switching control circuit. The strong-light detector is mounted to a front end of a car to detect light projected from an opposite coming car. The strong-light detector is induced when the light projected thereto has intensity exceeded a preset value, and causes the strong-light signal circuit to produce a strong-light signal, with which the switching control circuit is immediately enabled to switch headlights of the car from high beams to low beams. And, the switching control circuit automatically switches the car from low beams to high beams when the strong-light signal circuit stops sending the strong-light signal.

Claims

1. An auto-operated dip switching mechanism, comprising a strong-light detector, a strong-light signal circuit, and a switching control circuit;

said strong-light detector being mounted to a front end of a car with a detecting side thereof facing forward to detect light projected from an opposite coming car;

said strong-light detector being electrically connected to said strong-light signal circuit and said switching control circuit, while said switching control circuit being electrically connected to high and low beams of said car;

said strong-light detector being induced when said light projected thereto has intensity exceeded a preset value, and causing said strong-light signal circuit to produce a strong-light signal, with which said switching control circuit is immediately enabled to switch headlights of said car from high beams to low beams; and

said switching control circuit automatically switching said car from low beams to high beams when said strong-light signal circuit stops sending said strong-light signal.

2. The auto-operated dip switching mechanism as claimed in claim 1, wherein said strong-light signal circuit and said switching control circuit are directly incorporated with an existing dip-switch control circuit on said car.

3. The auto-operated dip switching mechanism as claimed in claim 1, wherein said strong-light signal circuit and said switching control circuit are mounted in a separated box, on which an external control switch is provided.

4. The auto-operated dip switching mechanism as claimed in claim 1, further comprising power supply transforming circuits for converting a battery supply on said car into a power supply needed by said auto-operated dip switching mechanism to work.

5. The auto-operated dip switching mechanism as claimed in claim 1, wherein said strong-light detector is mounted to a front end of said car at a grille thereof.

6. The auto-operated dip switching mechanism as claimed in claim 1, wherein said strong-light detector is mounted in a compartment preformed on a headlight module of said car when said headlight module is manufactured.