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US 2019/0104645 A1Published application
Electronic devices having adaptive surfaces
AssigneeApple Inc.
InventorsSabrina K. PASEMAN, Timothy P. M. JOHNSON
Life of this patent
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Abstract
Aspects of the subject technology relate to electronic devices having adaptive surfaces. An adaptive surface may expand or deform responsive to a temperature change and/or a mechanical strain for thermal management for the device or for mechanical restructuring of the device in various configurations. The adaptive surface may be formed from a negative Poisson's ratio relief pattern in the surface or an inhomogeneous arrangement of materials.
Claims20
An electronic device, comprising:
- a structure having an adaptive surface, the adaptive surface configured to deform from a first configuration to a second configuration responsive to heat generated by an electronic component of the electronic device.
An electronic device, comprising:
- a structure having an adaptive surface, the adaptive surface configured to deform from a first configuration to a second configuration responsive to an applied thermal or mechanical strain, wherein the adaptive surface includes a negative Poisson's ratio relief pattern formed by:
- a plurality of interconnected triangular panels, each triangular panel having three corner regions each adjacent to a corresponding tip of that triangular panel,
- wherein each of the three corner regions of each triangular panel is connected to a corresponding corner region of one other triangular panel such that each triangular panel is connected to three other triangular panels, and
- wherein each triangular panel includes three sides that are each separated by a gap from an adjacent side of an opposing triangular panel.
1 more element
A cover for an electronic device, the cover comprising:
- a main structure having at least one adaptive region, the at least one adaptive region comprising:
- a shape memory material formed in a negative Poisson's ratio relief pattern, wherein the negative Poisson's ratio relief pattern is configured to cause a stretch of the adaptive region in a first direction to expand the adaptive region in at least a second direction to deform the shape memory material from a first shape memory configuration to a second shape memory configuration.
Dependencies are inferred from the claim text.