Resin welded body and method for manufacturing the same

摘要

A X-Y plane is a plane parallel to abutting surfaces on which a joining portion is formed, and a Z direction is a direction perpendicular to the X-Y plane. A sealing member is held between the outer circumference side of a guide provided on a lid body and the inner circumference side of a rib provided on a case, and is pressed in a direction parallel to the X-Y plane. Laser light is scanned on the inner circumference side with respect to a ring-shaped pressurization jig with a stopper pressurized by the pressurization jig, so the pressurization jig does not break the path of the laser light. This expands the range of options in the material for the pressurization jig, which enables an easy-maintenance jig to be used, improving productivity.

主权项

1. A resin welded body in which a first resin part and a second resin part are placed opposite to each other with a predetermined clearance therebetween and form a closed space therebetween, at least part of abutting surfaces of the first and second resin parts being joined by welding, the resin welded body comprising, when a X-Y plane is a plane parallel to the abutting surfaces and a Z direction is a direction perpendicular to the X-Y plane:
a first protrusion in a circumferential shape that is provided on any one of the first and second resin parts and that protrudes in the Z direction in the closed space; a second protrusion in a circumferential shape that is provided on the resin part opposite to the resin part on which the first protrusion is provided and that protrudes in the Z direction on the outer circumference side with respect to the first protrusion; a third protrusion that is provided on any one of the first and second resin parts and that protrudes in the Z direction on the outer circumference side with respect to the second protrusion and abuts the opposite resin part to define the clearance between the first and second resin parts; and a ring-shaped sealing member that is held between the outer circumference side of the first protrusion and the inner circumference side of the second protrusion and that is pressed in a direction parallel to the X-Y plane.