END CAP WITH SAFETY PROTECTION SWITCH

• US 20100181178A1
• Filed: 10/27/2009
• Published: 07/22/2010
• Est. Priority Date: 01/22/2009
• Status: Abandoned Application

• Current Assignee: Asia Link Engineering Ltd.
• Original Assignee: Asia Link Engineering Ltd.
• Inventors: Chang, James Tseng Hsu, Wu, Hong bo
• Application Number:
  US12/606,848
• Publication Number:
  US 20100181178A1
• Time in Patent Office: Days
• US Class Current: 200/341
• CPC Class Codes: F21K 9/272 Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts F21K9/278 takes precedence
• CPC Class Codes: F21V 19/008 of straight tubular light sources, e.g. straight fluorescent tubes, soffit lamps
• CPC Class Codes: F21V 25/04 breaking the electric circuit
• CPC Class Codes: F21Y 2101/00 Point-like light sources
• CPC Class Codes: H01H 1/20 Bridging contacts for circuit breakers H01H73/045
• CPC Class Codes: H01H 13/18 adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
• CPC Class Codes: H01R 33/08 for supporting tubular fluorescent lamp
• CPC Class Codes: H01R 33/96 with switch operated by engagement or disengagement of coupling

Abstract

A protective end cap device that includes an end cap casing and a protection switch. The end cap casing includes one or two conductive pins and defines a notch located to one side of the conductive pin. The protection switch is disposed at least in part inside the end cap casing and within the notch, and includes a first switch pin and a second switch pin. The first switch pin is electrically connected to the conductive pin and the second switch pin is electrically connected to a power supply circuit board.

Claims

1. A protective end cap device, comprising:

an end cap casing including one or two conductive pins and defining a notch located to one side of one or two conductive pins; and

a protection switch disposed at least in part inside the end cap casing and within the notch, the protection switch including a first switch pin and a second switch pin, the first switch pin electrically connected to the conductive pin and the second switch pin electrically connected to a power supply circuit board.

2. The protective end cap device of claim 1, wherein the protection switch further includes:

a tubular switch body;

a matching cylindrical sliding bar having an inward end and an outward end;

a first spring in forcible contact with the inward end of the sliding bar and disposed between the first and the second switch pins,

a sliding cap coupled to the outward end of the sliding bar, the sliding cap defining a tubular cavity having a second spring in forcible contact with the sliding cap and the outward end of the sliding bar; and

wherein the first and second switch pins penetrate an end surface of the larger diameter portion of the switch body.

3. The protective end cap device of claim 1, wherein the notch is configured on the outer surface of a switch body and a fixing plate or a screw nut or two screws are configured inside the notch.

4. The protective end cap device of claim 2, wherein the protection switch further includes a metal plate fixed on the inward end of the sliding bar on the side of the switch pins.

5. The protective end cap device of claim 2, wherein a top surface of the sliding cap defines a shape similar to a triangular pyramid formed by two inclined surfaces, and wherein the sliding cap is located on one side of the conductive pin.

6. The protective end cap device of claim 2, wherein the top of the sliding cap defines a shape similar to a cone or a spherical surface formed by an arc-shaped surface, and wherein the sliding cap is located on one side of the conductive pin.

7. The protective end cap device of claim 1, wherein the protection switch is a push-key type or button type switch, and wherein the protection switch is disposed on a sidewall of the end cap casing.