Environmental seal maximizing sensor space beneath a button positioned in trim

摘要

An environmental seal is formed around a square sensor disposed beneath a circular button cap within a button assembly. The button assembly includes shelf portions each extending separately into the interior of the assembly from a sidewall of the assembly. Portions of the sidewall are exposed between the shelf portions large enough to permit the four corners of the square sensor to contact the sidewall. The button cap is set above the sensor, resting upon the shelf portions. A first sealant bonds the top faces of the shelf portions to the bottom of the button cap. A second sealant bonds the edges of the sidewall to the corners of the sensor. The second sealant interfaces with the first sealant to form a complete environmental seal.

主权项

1. A sealed volume comprising:
a sidewall defining an interior volume; a first shelf portion and a second shelf portion each extending into the interior of the volume; a cap positioned to extend across the interior volume and above the first and second shelf portions; a first adhesive of a first adhesive type disposed between a top face of the first shelf portion and the cap; a second adhesive of the first adhesive type disposed between a to face of the second shelf portion and the cap; and a third adhesive of a second adhesive type disposed between the sidewall and the cap to adhere the cap to the sidewall and to seal the interior volume; wherein the first adhesive type is curable in a first process and the second adhesive type is curable in a second process.