Housing structure and battery device

Abstract

Housing structure, characterized in that it comprises: a housing (1) provided with a mounting opening; wherein the interior of the housing (1) is designed to receive a battery cell arrangement (2); a connecting plate (3) provided in the mounting opening; wherein the connecting plate (3) has a top surface (31) comprising a first connecting surface (311) and a second connecting surface (312), the second connecting surface (312) extending in a direction away from the battery cell arrangement (2); wherein a first through-hole is opened on the second connecting surface (312), the outer edge of the first connecting surface (311) being welded to the inner wall of the mounting opening to form a first weld (4); wherein there is a height difference along the vertical direction between the first connecting surface (311) and the second connecting surface (312);a pressure ring (5), wherein the outer edge of the pressure ring (5) is welded to the second connecting surface (312) to form a second weld seam (6) and a second through-hole is opened on the pressure ring (5) to form an inner edge; a pole (7) which successively projects into the second through-hole and the first through-hole and is connected to the inner edge.