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发明公开
CN103502646A 涡旋型压缩机 有权

涡旋型压缩机
摘要：
本发明提供一种涡旋型压缩机，可以提高与固定涡旋盘的涡卷前端部的根部附近的通孔面对的盖板的强度，进而可以提高可靠性、耐久性。在构成固定涡旋盘（23）的涡卷（23B）的内侧渐开线面（S1）的起点（P）和外侧渐开线面（S2）的起点（Q）之间形成的非渐开线面（S3）中的凹曲面（S32）形成为曲率半径小的曲面形状，并且，在固定涡旋盘（23）的涡卷（23B）的前端部即涡卷中心部分形成的通孔（23C）的周缘中的、与凹曲面（S32）面对的接近区域（ε）中的开口形状，以曲率半径比凹曲面（S32）的曲率半径（r）小的曲面形成，从而确保面对孔距离（L）长，所述面对孔距离（L）为非渐开线面（S3）的凸曲面（S32）上的顶点（Z）处的根部部分和与该涡卷前端部（Z）的根部面对的通孔（23C）上的最靠近缘部（U）之间的长度。
摘要（英）：

Provided is a scroll compressor with which it is possible to increase the strength of an end plate facing a penetration hole near the base of the distal end of a wrap of a fixed scroll, consequently improving reliability and durability. This scroll compressor is configured such that: of a non-involute surface (S3) formed between a starting point (P) of an inner involute surface (S1) and a starting point (Q) of an outer involute surface (S2) configuring a wrap (23B) of a fixed scroll (23), a concave surface (S32) is formed to have a curved shape with a small radius of curvature; of the fringe of a penetration hole (23C) formed in the central part of a spiral which is the distal end of the wrap (23B) of the fixed scroll (23), the shape of an opening in a proximate region (e) facing the concave surface (S32) is formed as a curved surface with a radius of curvature smaller than a radius of curvature (r) of the concave surface (S32); and a long length is secured for a hole facing distance (L), which is the distance between the base section at the vertex (Z) of the convex surface (S32) of the non-involute surface (S3) and the nearest edge (U) of the penetration hole (23C) facing the base of a distal end (Z) of the wrap.

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