Browse Prior Art Database

SELECTOR SLIDE SWITCH

IP.com Disclosure Number: IPCOM000006749D
Original Publication Date: 1993-Mar-01
Included in the Prior Art Database: 2002-Jan-29
Document File: 4 page(s) / 105K

Publishing Venue

Motorola

Related People

See Ngan Kok: AUTHOR

Abstract

A portable radio which offers channel selection option requires some type of selector switch to facilitate access. The selector switch shown (Figure 1) serves the purpose mechanically. This switch consists of: (i) contact finger (ii) return spring (iii) slider (iv) housing These four components form a selector switch by snapping the contact linger, return finger and slider into the housing. To use this switch, a printed circuit board with three contact pads and four snapin holes are needed When the switch is snapped into the printed circuit board, the contact fmger will connect pad #l and pad #2 (Figure 2). If an external actuation is applied to slider, the slider will shift further towards the housing and elon- gate the contact finger. T+s, connection between pad #1 and pad #3 is closed! (Figure 3) and connection between pad #I and pad #2 is opened. When the actua- tion force is released, the slider will return to its original position, and the connection between pad #l and pad #2 is closed again.

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MOTOROLA INC. Technical Developments Volume 18 March 1993

SELECTOR SLIDE SWITCH

by See Ngan Kok

   A portable radio which offers channel selection option requires some type of selector switch to facilitate access. The selector switch shown (Figure 1) serves the purpose mechanically. This switch consists of:

(i) contact finger
(ii) return spring
(iii) slider
(iv) housing

  These four components form a selector switch by snapping the contact linger, return finger and slider into the housing. To use this switch, a printed circuit board with three contact pads and four snapin holes are needed

  When the switch is snapped into the printed circuit board, the contact fmger will connect pad #l and pad #2 (Figure 2). If an external actuation is applied to slider,

the slider will shift further towards the housing and elon- gate the contact finger. T+s, connection between pad #1 and pad #3 is closed! (Figure 3) and connection between pad #I and pad #2 is opened. When the actua- tion force is released, the slider will return to its original position, and the connection between pad #l and pad #2 is closed again.

  The specific features of this switch which make it unique are the contact fmgkr and its snap-in feature. The contact finger eliminates kldering by having direct con- tact to the PCB's contact pad. The selection in connec- tion is made simpler by elongating the contact finger. By incorporating the snap-in ;,feature onto the switch, the manufacturing process is made simple...