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Rotary switch employing keypad or similar mechanism for position indication

一种旋转开关、旋转轴线的技术，应用在电开关、紧急保护装置、紧急执行器等方向，能够解决电阻增加、成拱作用、增加滑动式旋转开关灾难性故障等问题

Active Publication Date: 2018-11-13
CARLING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the switch wears, the electrical contact that is made between the conductive member and the contact or trace becomes weaker, which in turn causes an increase in resistance leading to heat and possible arching
This only adds to the catastrophic failure of sliding rotary switches

Method used

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  • Rotary switch employing keypad or similar mechanism for position indication
  • Rotary switch employing keypad or similar mechanism for position indication
  • Rotary switch employing keypad or similar mechanism for position indication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] Reference is now made to the drawings, wherein like reference numerals indicate corresponding structures throughout.

[0044] figure 1 A cross-sectional view of rotary switch 100 is included. The rotary switch 100 includes a knob 102 that includes an upper portion 104 that can be gripped and rotated. Knob 102 also includes two channels 106, 106' within which are located two elongated members 108, 108'. The knob 102 also includes a side wall 110 ( Figure 5 As better shown in ), the side wall 110 is shaped as a cylinder. Two channels 106 , 106 ′ are formed on the inner surface of the side wall 110 .

[0045] figure 1 Also shown is a base 112 comprising a circular lower portion 114 and a cylindrical upper portion 116 . refer to figure 1 It can be seen that the side wall 110 is provided with an outer circumference allowing to fit inside the cylindrical upper part 116 of the base 112 . In practice, the inner diameter of the cylindrical upper portion 116 will be chos...

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PUM

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Abstract

A rotary switch with a knob having an axis of rotation and moveable to a plurality of angular positions and an elongated member extending in a longitudinal direction relative to the axis of the knob is provided. A conductive member is positioned near a plurality of angularly displaced traces formed on a Printed Circuit Board. When the knob is rotated, the rotation is translated to longitudinal movement of the conductive member, which contacts at least one trace to close a circuit. The rotary switch is not subject to the wear commonly associated with mechanical switches and is not subject to lower reliability due to debris and dust entering the switch. The rotary switch has a relatively shallow depth by utilizing a PCB and has a very high life cycle.

Description

technical field [0001] The present invention relates to a rotary switch mechanism, and more particularly to a rotary switch including an axially displaceable member to form contact with a trace based on the angular position of the switch. Background technique [0002] Rotary switches have been known and used for decades and are known to include multiple connection points. [0003] For example, one type of rotary switch that is well known is a slide switch. The slide switch includes a conductive member that is rotated to various positions to come into close contact with a point of contact with the conductive member. In fact, these are mechanical contacts that rotate against traces on eg a printed circuit board (PCB). The main disadvantage of slide switches is that when the conductive member slides, wear occurs due to the physical resistance of the conductive member to the rotating surface. This also has a tendency to cause wear of the contact points as well as the conducti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H19/60
CPCH01H19/605H01H19/63H01H19/6355H01H2201/032H01H2209/078H01H2221/01H01H19/585H01H19/14
Inventor 亚当·查尔斯·莱德克
Owner CARLING TECH
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