VIBRATION SWITCH

• US 20090183973A1
• Filed: 11/24/2008
• Published: 07/23/2009
• Est. Priority Date: 01/18/2008
• Status: Active Grant

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: LU, WEN-HSIANG, CHOU, CHENG-HAO
• Granted Patent: US 7,592,556 B2
• Time in Patent Office: Days
• US Class Current: 200/61.530
• CPC Class Codes: H01H 35/144 operated by vibration

Abstract

The vibration switch includes a housing with a chamber formed thereon and extended in a longitudinal direction. Two attachment means are disposed at two ends of the chamber respectively. Two spring means are received in the chamber and attached to the two attachment means respectively. Two electric contact terminals are electrically connected to the two spring means respectively. An electrically conductive inertial weight received in the chamber and disposed between the two spring means. When the vibration switch is jerked in the longitudinal direction, the inertial weight is capable of moving by inertial force from an initial position to positions where the inertial weight contacts or disengages one of the two spring means, making the vibration switch change from an initial state to a switch-on state or a switch-off state; the inertial weight is capable of returning to the inertial position by the spring force of the two spring means.

Claims

1. A vibration switch comprising:

an electrically insulating housing with a chamber formed therein and extended in a longitudinal direction;

two attachment means disposed at one end of the chamber respectively;

two spring means received in the chamber and attached to one of the two attachment means respectively;

two electric contact terminals electrically connected to one of the two spring means respectively; and

an electrically conductive inertial weight received in the chamber and disposed between the two spring means;

wherein when the vibration switch is jerked in the longitudinal direction, the inertial weight is capable of moving by inertial force from an initial position to positions where the inertial weight contacts or disengages one of the two spring means, making the vibration switch change from an initial state to a switch-on state or a switch-off state;

the inertial weight is capable of returning to the inertial position by the spring force of the two spring means.

2. The vibration switch according to claim 1, wherein the two spring means are coil springs.

3. The vibration switch according to claim 1, wherein the inertial weight is attached to one of the two spring means and is out of contact with the other spring means, making the vibration switch be in a normally open state.

4. The vibration switch according to claim 1, wherein the inertial weight is attached to one of the two spring means and contacts the other spring means, making the vibration switch be in a normally closed state.

5. The vibration switch according to claim 1, wherein the inertial weight contacts the two spring means, making the vibration switch be in an initial switch-on state, and is capable of disengaging either of the two spring means and.

6. A vibration switch comprising:

an electrically insulating housing with a chamber formed therein and extended in a longitudinal direction;

two electrical conductive enclosure means disposed at one end of the chamber;

two electric contact terminals attached to one of the two enclosure means respectively;

two spring means movably received in the chamber; and

an inertial electrically conductive weight received in the chamber and disposed between the two spring means and kept in an initial balancing position by the spring force of two spring means;

wherein, when the vibration switch is jerked in the longitudinal direction, the inertial weight is capable of moving from the initial balancing position to positions where one of the two spring means is capable of returning from a compression state to a normal state and disengaging one of the two enclosure means, making the vibration switch change from an initial switch-on state to a switch-off state;

the inertial weight is capable of returning to the initial balancing position by the spring force of the two spring means.

7. The vibration switch according to claim 6, wherein the two spring means are coil springs.

8. The vibration switch according to claim 6, wherein the inertial weight is attached to the two spring means.

9. The vibration switch according to claim 6, wherein the inertial weight is capable of disengaging the two spring means.