Vibration detecting switch

• US 6,448,516 B1
• Filed: 05/16/2001
• Issued: 09/10/2002
• Est. Priority Date: 05/16/2001
• Status: Expired due to Fees

• Current Assignee: Ching A.N. Chiang
• Original Assignee: Ching A.N. Chiang
• Inventors: Chiang, Ching An
• Primary Examiner(s): Bradley, P. Austin
• Assistant Examiner(s): KLAUS, LISA NHUNG
• Application Number:
  US09/855,779
• Time in Patent Office: 482 Days
• Field of Search: 200/61.45 R, 200/61.48, 200/61-1-, 200/61.53, 200/DIG.8, 200/DIG.9, 200/DIG.29, 200/277
• US Class Current: 200/61.45R
• CPC Class Codes: H01H 35/02 Switches operated by change of position, inclination or orientation of the switch itself in relation to gravitational field tilting mercury container H01H29/20; change of position due to change of liquid level H01H35/18
• CPC Class Codes: H01H 35/144 operated by vibration

Abstract

A vibration induction switch includes a metal bottom holder having a top center convex, a metal top holder matched with the metal bottom holder and having a bottom center convex, a metal ball received in between the metal bottom holder and the metal top holder to switch on the circuit when the vibration induction switch is maintained immovable, or to alternatively switch on/off the circuit when the vibration induction switch is moved.

Claims

1. A vibration detecting switch comprising:

a metal bottom holder, said metal bottom holder comprising a top sidewall, a bottom sidewall, a top convex surface curved outwards from a center portion of the top sidewall, a plurality of top contact rods perpendicularly upwardly extended from the top sidewall and equiangularly spaced around said top convex surface, two locating rods respectively horizontally extended from a periphery of the metal bottom holder in different directions, and a conducting rod horizontally extended from the periphery of the metal bottom holder for connection to one pole of a power supply;

a metal top holder covering said metal bottom holder, said metal top holder comprising a top sidewall, a bottom sidewall, a bottom convex surface curved outwards from a center of the bottom sidewall, a plurality of bottom contact rods perpendicularly downwardly extended from the bottom sidewall and equiangularly spaced around said bottom convex surface and respectively inserted in between each two of said top contact rods of said metal bottom holder, a horizontal conducting rod extended from a periphery of the metal top holder for connection to a second pole of the power supply, and a plurality of horizontal lugs equiangularly spaced around the periphery of the metal top holder;

a metal ball received in between said metal bottom holder and said metal top holder and disposed in contact with one top contact rod of said metal bottom holder and one bottom contact rod of said metal top holder when the vibration detecting switch is maintained immovable; and

an outer cover shell positioned between said metal bottom holder and said metal top holder, said outer cover shell comprising two bottom locating notches respectively engaged with the locating rods of said metal bottom holder, two top locating notches respectively engaged with the locating rods of said metal top holder, and holes which receive the respective conducting rods of said metal bottom holder and said metal top holder.

2. A vibration detecting switch comprising:

a metal top cover, said metal top cover having a bottom convex surface curved outwards from a bottom sidewall thereof, a corrugated inner peripheral wall spaced around said bottom convex surface, and two bottom contact rods downwardly extended from the bottom sidewall at two sides for connection to one pole of power supply;

an electrically insulative base plate sleeved onto the bottom contact rods of said metal top cover and covering the bottom sidewall of said metal top cover, said electrically insulative base plate having a top center recess, and a center through hole through the center of said top center recess;

a rod electrode mounted in said electrically insulative base plate, said rod electrode comprising a shank inserted through a center through hole of said electrically insulative base plate for connection to one pole of a power supply, and a conical head fitted into a top center recess of said electrically insulative base plate and aimed at the bottom convex surface of said metal top cover; and

a metal ball carried on said electrically insulative base plate inside said metal top cover to switch off the circuit when the vibration detecting switch is maintained immovable, or to intermittently touch the conical head of said electrode and the bottom convex surface of said metal top cover to further alternatively switch on/off the circuit.