Control unit with control surface for computer mouse

摘要

The control unit has a control surface (11) on which a computer mouse can be moved. There is a circuit board (13) beneath the control surface, with conducting tracks covered by a base part (20) on its surface facing away from the control surface. The base part is a solid housing part in which the board is inserted, and has a peripheral groove (28) enclosing the board. The control surface is part of a cover (10) with a sealing surface facing the base part. The sealing surface rests on a seal (29) inserted into the groove