# US 12,006,936 B2 · Orbiting scroll plate driving assembly and scroll compressor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,006,936 B2 - Document ID: US12006936B2 - Status: Granted - Kind: B2 - Application number: 17/620,626 - Filed: 2020-06-30 - Published: 2022-08-18 - Granted: 2024-06-11 - Earliest claimed: 2019-07-08 - Assignees: Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai - Applicants: Gree Green Refrigeration Technology Center Co., Ltd. of Zhuhai - Inventors: Yusheng Hu; Huijun Wei; Yun Liu; Shuanglai Liu; Caixia Shan; Xiaoli Kang; Xuefeng Li; Xiaoshan Chen - Web page: https://patentgrep.com/patent/US12006936B2 ## CPC - F04C 29/0057: {for eccentric movement} - F04C 18/0215: {where only one member is moving} - F04C 2230/60: Assembly methods - F04C 2240/605: Shaft sleeves or details thereof - F04C 2240/807: Balance weight, counterweight - F04C: ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS (engines F03C); ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS ## Abstract An orbiting scroll plate driving assembly provided by the present application includes a main shaft (7), a tail driving shaft (6), and an eccentric shaft sleeve (5). The tail driving shaft (6) is eccentrically connected to the main shaft (7), and the eccentric shaft sleeve (5) is rotatably sleeved on the tail driving shaft (6). The orbiting scroll plate driving assembly further includes a limiting portion (14). The limiting portion (14) is disposed on the tail driving shaft (6), and provided with a first limiting portion protrusion (141). The eccentric shaft sleeve (5) is provided with an eccentric shaft sleeve groove (51). The first limiting portion protrusion (141) is correspondingly inserted into the eccentric shaft sleeve groove. A circumferential size of the eccentric shaft sleeve groove (51) is larger than a circumferential size of the first limiting portion protrusion (141). By providing the limiting portion (14) on the tail driving shaft (6), and providing a mortise joint structure between the limiting portion (14) and the eccentric shaft sleeve (5), the circumferential movement and axial movement of the eccentric shaft sleeve (5) can be confined, and the assembly and processing are simple. Further, a scroll compressor is disclosed. ## Claims ### Claim 1 An orbiting scroll plate driving assembly, comprising: a main shaft, a tail driving shaft, and an eccentric shaft sleeve, the tail driving shaft being eccentrically connected to the main shaft, and the eccentric shaft sleeve being rotatably sleeved on the tail driving shaft; wherein the orbiting scroll plate driving assembly further comprises a limiting portion, the limiting portion is disposed on the tail driving shaft, the limiting portion comprises an annular body, the annular body is disposed on an end of the tail driving shaft, an outer diameter of the annular body is larger than an outer diameter of the tail driving shaft, the eccentric shaft sleeve is provided with an annular groove receiving a portion of the annular body, and the limiting portion is provided with a first limiting portion protrusion, the eccentric shaft sleeve is provided with an eccentric shaft sleeve groove, the first limiting portion protrusion is correspondingly inserted into the eccentric shaft sleeve groove, and a circumferential size of the eccentric shaft sleeve groove is larger than a circumferential size of the first limiting portion protrusion; or the limiting portion is provided with a first limiting portion groove, the eccentric shaft sleeve is provided with a first eccentric shaft sleeve protrusion, the first eccentric shaft sleeve protrusion is correspondingly inserted into the first limiting portion groove, and a circumferential size of the first limiting portion groove is larger than a circumferential size of the first eccentric shaft sleeve protrusion. ### Claim 2 (depends on 1) The orbiting scroll plate driving assembly according to claim 1, wherein the first limiting portion groove comprises a gap defined by the annular body; and the first eccentric shaft sleeve protrusion is correspondingly inserted into the gap. ### Claim 3 (depends on 1) The orbiting scroll plate driving assembly according to claim 1, wherein the limiting portion is provided with a second limiting portion protrusion, the tail driving shaft is provided with a tail driving shaft groove, and the second limiting portion protrusion is fixedly connected to the tail driving shaft groove. ### Claim 4 (depends on 3) The orbiting scroll plate driving assembly according to claim 3, wherein the second limiting portion protrusion comprises an axial portion and a radial portion; the axial portion is arranged toward the tail driving shaft in an axial direction of the limiting portion, and the radial portion is arranged toward a center of the annular body in a radial direction of the limiting portion. ### Claim 5 (depends on 1) The orbiting scroll plate driving assembly according to claim 1, wherein a circumferential side wall of the first limiting portion protrusion or a circumferential side wall of the eccentric shaft sleeve groove is provided with a shock-absorbing member. ### Claim 6 (depends on 5) The orbiting scroll plate driving assembly according to claim 5, wherein the shock-absorbing member comprises a shock-absorbing coating. ### Claim 7 (depends on 1) The orbiting scroll plate driving assembly according to claim 1, wherein both of a circumferential side wall of the first limiting portion protrusion and a circumferential side wall of the eccentric shaft sleeve groove are provided with a shock-absorbing member. ### Claim 8 (depends on 1) The orbiting scroll plate driving assembly according to claim 1, wherein both of a circumferential side wall of the first limiting portion groove and a circumferential side wall of the first eccentric shaft sleeve protrusion are provided with a shock-absorbing member. ### Claim 9 (depends on 1) The orbiting scroll plate driving assembly according to claim 1, wherein a circumferential side wall of the first limiting portion groove or a circumferential side wall the first eccentric shaft sleeve protrusion is provided with a shock-absorbing member. ### Claim 10 (depends on 1) A scroll compressor, comprising the orbiting scroll plate driving assembly according to claim 1. ### Claim 11 An orbiting scroll plate driving assembly, comprising: a main shaft, a tail driving shaft, and an eccentric shaft sleeve, the tail driving shaft being eccentrically connected to the main shaft, and the eccentric shaft sleeve being rotatably sleeved on the tail driving shaft; wherein the orbiting scroll plate driving assembly further comprises a limiting portion, the limiting portion is disposed on the tail driving shaft, the limiting portion comprises an annular body, and the annular body is disposed on an end of the tail driving shaft, the limiting portion is provided with a first limiting portion groove, the eccentric shaft sleeve is provided with a first eccentric shaft sleeve protrusion, the first eccentric shaft sleeve protrusion is correspondingly inserted into the first limiting portion groove, and a circumferential size of the first limiting portion groove is larger than a circumferential size of the first eccentric shaft sleeve protrusion; and an outer diameter of the annular body is less than or equal to an outer diameter of the tail driving shaft. ### Claim 12 An orbiting scroll plate driving assembly, comprising: a main shaft, a tail driving shaft, and an eccentric shaft sleeve, the tail driving shaft being eccentrically connected to the main shaft, and the eccentric shaft sleeve being rotatably sleeved on the tail driving shaft; wherein the orbiting scroll plate driving assembly further comprises a limiting portion, the limiting portion is disposed on the tail driving shaft, the limiting portion comprises an annular body, the annular body is disposed on an end of the tail driving shaft, an outer diameter of the annular body is larger than an outer diameter of the tail driving shaft, the eccentric shaft sleeve is provided with an annular groove receiving a portion of the annular body; the limiting portion is provided with a first limiting portion groove, the eccentric shaft sleeve is provided with a first eccentric shaft sleeve protrusion, the first eccentric shaft sleeve protrusion is correspondingly inserted into the first limiting portion groove, and a circumferential size of the first limiting portion groove is larger than a circumferential size of the first eccentric shaft sleeve protrusion; and the first limiting portion groove comprises a gap defined by the annular body; and the first eccentric shaft sleeve protrusion is correspondingly inserted into the gap.