Impact switch
First Claim
Patent Images
1. An impact switch, comprising:
- a first member having a reservoir for holding a conductive fluid, wherein the conductive fluid comprises a combination of water and calcium chloride; and
a second member having a first conductive portion disconnected from a second conductive portion, the second member coupled to the first member over the reservoir; and
wherein, responsive to receiving a predetermined level of impact, the conductive fluid moves from the reservoir to an interface between the first and second members to conductively connect the first conductive portion with the second conductive portion.
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Abstract
According to one aspect of the present disclosure, a device and technique for an impact switch is disclosed. The impact switch includes a first member having a reservoir for holding a conductive fluid and a second member having a first conductive portion disconnected from a second conductive portion. The second member is coupled to the first member over the reservoir. Responsive to receiving a predetermined level of impact, the conductive fluid moves from the reservoir to an interface between the first and second members to conductively connect the first conductive portion with the second conductive portion.
58 Citations
18 Claims
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1. An impact switch, comprising:
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a first member having a reservoir for holding a conductive fluid, wherein the conductive fluid comprises a combination of water and calcium chloride; and a second member having a first conductive portion disconnected from a second conductive portion, the second member coupled to the first member over the reservoir; and wherein, responsive to receiving a predetermined level of impact, the conductive fluid moves from the reservoir to an interface between the first and second members to conductively connect the first conductive portion with the second conductive portion. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An impact switch, comprising:
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a first member having a reservoir for holding a conductive fluid; and a second member having a first conductive portion disconnected from a second conductive portion, the second member coupled to the first member over an opening of the reservoir, wherein a capillary gap is formed over at least a portion of an interface between the first and second members, and wherein the second member comprises a printed circuit board having a split etch pad, the split etch pad forming the disconnected first and second conductive portions; and wherein, responsive to receiving a predetermined level of impact, the conductive fluid moves from the reservoir to the interface and wicks into the capillary gap, the conductive fluid migrating within the capillary gap to conductively connect the first conductive portion with the second conductive portion. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An impact switch, comprising:
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an insert having a reservoir for holding a conductive fluid, the reservoir sized to retain the conductive fluid in the reservoir until a predetermined level of impact is received by the impact switch; and an electronic assembly disposed over an opening of the reservoir, the electronic assembly having a first conductive portion extending over a first portion of a periphery of the opening and a second conductive portion extending over a second portion of the periphery of the opening, the first and second conductive portions disconnected from each other in a non-activated state of the impact switch, and wherein the electronic assembly comprises a printed circuit board having a split etch pad, the split etch pad forming the disconnected first and second conductive portions; and wherein, responsive to receiving the predetermined level of impact, the conductive fluid moves from the reservoir to an interface between the insert and the electronic assembly and migrates along the periphery to conductively connect the first conductive portion with the second conductive portion in an activated state. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification