Plastic housing with an ultrasonic welded connection, in particular for a hydrostatic actuator and hydrostatic actuator with this

摘要

Plastic housing (1), in particular for a hydrostatic actuator, containing a housing section (2) with an opening (3) and a closure piece (4) introduced into this by means of ultrasound, an ultrasonic welded connection (18) at a joining zone (7) with a first cross section ( q1) is formed, the closure piece (4) and opening (3) in a joining direction (13) of the ultrasonic welded connection (18) to the joining zone (7) axially spaced a deflection device (15) for a weld output of the ultrasonic welded connection (18), and the Deflection device (15) consisting of a radial projection (16) with a second cross section (q2) of the opening (3) that is narrower than the first cross section (q1) and a diameter (D1) of the closure piece (4) at the joining zone (7) ) reduced second diameter (D2) of the closure piece (4) is formed, characterized in that axially between the two diameters (D1, D2) an annular pocket (17) in the Closure piece (17) is present.