Two-stage switch assembly
First Claim
Patent Images
1. A mobile device comprising a switch assembly, the switch comprising:
- a dome switch;
a conductive pad switch arranged laterally in an array relative to the dome switch, the conductive pad switch comprising an upper contact and a lower contact, and a resilient member surrounding the upper and the lower contacts and acting to separate the upper and the lower contacts; and
a push key positioned above the array and comprising a hole to receive a heat staking structure,wherein upon movement of the push key, the resilient member deforms to close the conductive pad switch under a first force, while a second force greater than the first force closes the dome switch.
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Abstract
A switch assembly is provided to actuate a pair of switches using a single push key, e.g. for a camera that utilizes a first switch to activate an image focusing function and a second switch to activate a camera shutter. The switch assembly comprises a contact pad switch and a dome switch that are located laterally to one another. When the push key receives a first downward force, only the contact pad switch becomes activated and a first electric circuit is completed. When the push key receives a second downward force that is greater than the first force, the dome switch collapses and a second electric circuit is completed.
28 Citations
21 Claims
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1. A mobile device comprising a switch assembly, the switch comprising:
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a dome switch; a conductive pad switch arranged laterally in an array relative to the dome switch, the conductive pad switch comprising an upper contact and a lower contact, and a resilient member surrounding the upper and the lower contacts and acting to separate the upper and the lower contacts; and a push key positioned above the array and comprising a hole to receive a heat staking structure, wherein upon movement of the push key, the resilient member deforms to close the conductive pad switch under a first force, while a second force greater than the first force closes the dome switch.
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2. A camera device comprising a lens, a camera shutter, and a switch assembly for focusing an image entering the lens and activating the camera shutter, the switch assembly comprising:
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a dome switch; a conductive pad switch arranged laterally in an array relative to the dome switch, the conductive pad switch comprising an upper contact and a lower contact, and a resilient member surrounding the upper and the lower contacts and acting to separate the upper and the lower contacts; and a push key positioned above the array and comprising a hole to receive a heat staking structure, wherein upon movement of the push key, the resilient member deforms to close the conductive pad switch under a first force thereby focusing the image entering the lens, while a second force greater than the first force closes the dome switch thereby activating the camera shutter to capture the image. - View Dependent Claims (3)
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4. A switch assembly comprising:
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a dome switch; a conductive pad switch arranged laterally in an array relative to the dome switch, the conductive pad switch comprising an upper contact and a lower contact, and a resilient member surrounding the upper and the lower contacts and acting to separate the upper and the lower contacts; and a push key positioned above the array and comprising a hole to receive a heat staking structure, wherein upon movement of the push key, the resilient member deforms to close the conductive pad switch under a first force, while a second force greater than the first force closes the dome switch. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification