Abstract: This document describes techniques and apparatuses directed to force distributing spring contacts. The disclosed spring contacts electrically connect a first component to a second component within a computing device. In implementations, the computing device includes a spring contact having a flexure coupled to a contact pin and configured to apply a force to the second component through the contact pin. The contact pin can include a small or precise structure configured to provide a precise electrical connection to the second component. However, the force to the second component through the small or precise structure of the contact pin increases an applied pressure, which can damage the second component. The disclosed techniques and apparatuses describe force distributing spring contacts with a force distributor configured to distribute the force to the second component over a larger surface area, thereby decreasing the applied pressure and preventing damage to the second component.

Abstract: Drivetrain assemblies for personal care devices using electromagnetic components to generate a combination of controllable power tapping and sweeping motions. The drivetrain assemblies include a drivetrain shaft at least partially contained within a body portion of the device. The drivetrain shaft is further configured to engage a brush head member of the device. The drivetrain assemblies further include a motor mounted on the drivetrain shaft, where the motor is configured to periodically rotate the drivetrain shaft about a first axis of the device, and an electromagnetic assembly configured to drive the drivetrain shaft and thereby the brush head member about an second axis of the device or in a direction parallel to a third axis of the device. The electromagnetic assembly includes a stator, a voice coil actuator, a rotor, or a linear solenoid actuator, for example.

Abstract: Drivetrain assemblies for personal care devices to generate controllable power tapping motion alone or with controllable sweeping motion. The drivetrain assemblies include a drivetrain shaft at least partially contained within a body portion. The drivetrain shaft is further configured to engage a brush head member. Some drivetrain assemblies include a single actuator for generating periodic linear movement, wherein the drivetrain shaft transmits the linear movement to the brush head member via a pivoting motion and/or a translational motion. Other drivetrain assemblies include the actuator for generating periodic linear movement and a motor on the drivetrain shaft to periodically rotate the shaft about a central axis.

Abstract: Systems and methods of generating sweeping and/or tapping motions in an oral cleaning device such as a power toothbrush device to perform optimally at all target areas of the user's mouth. The systems and methods are configured to periodically move a drivetrain shaft in a first direction about a central axis of the device or along a line that is tangential to a cleaning unit of the device, and periodically drive the drivetrain shaft in a second direction, different from the first direction, so that a set of cleaning elements that are attached to the cleaning unit move in a vertical up-down motion. The systems and methods are further configured to dynamically modify an output of the drivetrain assembly to target different areas of the user's mouth.

Abstract: This document describes techniques and apparatuses directed to force distributing spring contacts. The disclosed spring contacts electrically connect a first component to a second component within a computing device. In implementations, the computing device includes a spring contact having a flexure coupled to a contact pin and configured to apply a force to the second component through the contact pin. The contact pin can include a small or precise structure configured to provide a precise electrical connection to the second component. However, the force to the second component through the small or precise structure of the contact pin increases an applied pressure, which can damage the second component. The disclosed techniques and apparatuses describe force distributing spring contacts with a force distributor configured to distribute the force to the second component over a larger surface area, thereby decreasing the applied pressure and preventing damage to the second component.

Abstract: A calibration method comprises providing a mounting fixture including a tray coupled to a frame, and an alignment measurement sensor removably coupled to the tray. An angular orientation of the tray is determined using the alignment measurement sensor removably coupled to the tray in a first position. The alignment measurement sensor is then moved to a second position on the tray that is rotated from the first position, and the angular orientation of the tray is determined using the alignment measurement sensor at the second position. An axis misalignment for at least two of a pitch axis, a roll axis, or a yaw axis of the alignment measurement sensor is then calculated to determine one or more misalignment factors. The one or more misalignment factors are then applied to correct for misalignment of the alignment measurement sensor.

Abstract: Device facilitating quick and easy removal of a lens from a front side. The device includes a lens, a housing, a retention clip, an ejection block, and a fastener. The fastener passes through a hole in the housing and the ejection block. The fastener and either the housing or the ejection block have compatible threading. Rotation of the fastener in one direction causes the ejection block to release the retention clip, thereby allowing the lens to be removed. Rotation in a second direction causes the ejection block to return to a position capable of receiving the retention clip.

Abstract: Adjustable threaded cores for LED thermal management. The cores provide a direct thermal path between a LED and a heat sink while minimizing gaps and stresses between materials. The system includes a heat generating object, a first substrate housing containing a threaded hole beginning adjacent to the heat generating object, a second substrate having compatible threading with the threaded hole, and a third substrate including a heat sink. The second substrate has a higher thermal conductivity in comparison to the first substrate. The threaded hole and threaded core may terminate adjactent to the heat sink or may extent into the heat sink.

Abstract: Systems and methods for a high intensity light emitting diode (“LED”) floodlight. The floodlight has a designed direction of output and includes an LED; an optical element; a blade; and a heat sink. The blade is mounted at an application-specific angle to the heat sink to obtain the designed direction of output. The blade has an LED and an optical element; and a fixed end coupled with the heat sink. The heat sink is configured to dissipate heat away from the LED on the blade. The blade is configured to activate the LED and using the optical element, redirect the light in the direction of the designed output of the floodlight.

Abstract: Device facilitating quick and easy removal of a lens from a front side. The device includes a lens, a housing, a retention clip, an ejection block, and a fastener. The fastener passes through a hole in the housing and the ejection block. The fastener and either the housing or the ejection block have compatible threading. Rotation of the fastener in one direction causes the ejection block to release the retention clip, thereby allowing the lens to be removed. Rotation in a second direction causes the ejection block to return to a position capable of receiving the retention clip.

Abstract: Adjustable threaded cores for LED thermal management. The cores provide a direct thermal path between a LED and a heat sink while minimizing gaps and stresses between materials. The system includes a heat generating object, a first substrate housing containing a threaded hole beginning adjacent to the heat generating object, a second substrate having compatible threading with the threaded hole, and a third substrate including a heat sink. The second substrate has a higher thermal conductivity in comparison to the first substrate. The threaded hole and threaded core may terminate adjactent to the heat sink or may extent into the heat sink.

Abstract: Systems and methods for a high intensity light emitting diode (“LED”) floodlight. The floodlight has a designed direction of output and includes an LED; an optical element; a blade; and a heat sink. The blade is mounted at an application-specific angle to the heat sink to obtain the designed direction of output. The blade has an LED and an optical element; and a fixed end coupled with the heat sink. The heat sink is configured to dissipate heat away from the LED on the blade. The blade is configured to activate the LED and using the optical element, redirect the light in the direction of the designed output of the floodlight.

Abstract: Systems and methods for a passive, forced convection cooling system. A system for passive forced convection cooling includes, an intake port located in an area of high pressure on an air frame. The system further has an exhaust port located in an area of low pressure on an air frame. The areas of high and low pressure refer to areas of comparatively high and low pressure regions of the exterior ambient environment. Further still, an internal cooling duct connecting the intake port with the exhaust port, such that air flows from the intake port through the cooling duct to the exhaust port. Additionally the system contains, at least one heat sink located in proximity of the intake port and orientated inside the cooling duct in order to allow the cool air traveling through the cooling duct to cool the at least one heat sink.