# US 2014/0154115 A1 · Scroll Compressor Having A Single Phase Induction Motor With Aluminum Windings > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0154115 A1 - Document ID: US20140154115A1 - Status: Published application - Kind: A1 - Application number: 13/835,087 - Filed: 2013-03-15 - Published: 2014-06-05 - Earliest claimed: 2012-11-30 - Assignees: Emerson Electric Co. - Applicants: Emerson Electric Co. - Inventors: Matthew Paul Bingaman; John Patrick Powers - Web page: https://patentgrep.com/patent/US20140154115A1 ## CPC - H02K 3/02: Windings characterised by the conductor material - F04C 18/0215: {where only one member is moving} - F04C 23/008: {Hermetic pumps} - F04C 23/02: Pumps characterised by combination with, or adaptation to, specific driving engines or motors - F04C 29/0085: {Prime movers} - H02K 17/08: Motors with auxiliary phase obtained by externally fed auxiliary windings, e.g. capacitor motors - H02K 17/20: having deep-bar rotors - F04C 2240/40: Electric motor - H02K 7/14: Structural association with mechanical loads, e.g. with hand-held machine tools or fans (with fan or impeller for cooling the machine H02K9/06) - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - F04C: ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS (engines F03C); ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS ## Abstract A scroll compressor system for compressing a refrigerant, the scroll compressor comprising a single phase motor which includes a stator having a stator core that defines a plurality of slots positioned radially about an interior of the stator core and windings located within the plurality of slots. The windings including a main winding and a start winding and each of the main and start winding are formed from a conducting wire that includes aluminum. The compressor includes a rotor disposed concentrically within the stator, a drive shaft coupled to the rotor, and an orbital scroll member coupled to the drive shaft. The single phase motor, drive shaft, and orbital scroll member located with the shell. ## Claims ### Claim 1 A scroll compressor system for compressing a refrigerant, the scroll compressor comprising: a single phase motor comprising: a stator having a stator core defining a plurality of slots positioned radially about an interior of the stator core and windings located within the plurality of slots, the windings include a main winding and a start winding and each of the main winding and start winding are formed from a conducting wire that includes aluminum; and a rotor disposed concentrically within the stator; a drive shaft coupled to the rotor; an orbital scroll member operably coupled to the drive shaft; and a shell, wherein the single phase motor, drive shaft, and orbital scroll member are located with the shell. ### Claim 2 (depends on 1) The scroll compressor of claim 1 wherein the stator core has a stack height in a range between 4¼ inches and 5½ inches. ### Claim 3 (depends on 1) The scroll compressor claim 1 wherein the stator core has a stack height of 4¼ inches. ### Claim 4 (depends on 1) The scroll compressor of claim 1 wherein the stator core has a stack height of 5⅛ inches. ### Claim 5 (depends on 2) The scroll compressor of claim 2, wherein a portion of the plurality of slots house both the main winding and the start winding, each slot of the portion of the plurality of slots that house both the main winding and the start winding has a total cross sectional area and an area filled with both windings, a ratio of the area filled with both windings to the total cross sectional area of the slot is greater than or equal to 0.66. ### Claim 6 (depends on 2) The scroll compressor of claim 2, wherein a portion of the plurality of slots house only the main winding, each slot of the portion of the plurality of slots that house only the main winding has a total cross sectional area and an area filled with the main winding, a ratio of the area filled with main winding to the total cross sectional area of the slot is greater than or equal 0.68. ### Claim 7 (depends on 2) The scroll compressor of claim 2 wherein the rotor includes an outer periphery and aluminum bars, numbering in a range between 34 and 42, evenly spaced about the outer periphery. ### Claim 8 (depends on 1) The scroll compressor of claim 1, wherein the single phase motor has an operating voltage range between 180 and 300 volts. ### Claim 9 (depends on 1) The scroll compressor of claim 1, wherein the single phase motor has an operating power range above 1000 watts. ### Claim 10 (depends on 1) The scroll compressor of claim 1, wherein the single phase motor has an efficiency greater than 80%. ### Claim 11 A scroll compressor, the scroll compressor comprising: a compression unit; and a single phase motor driving the compression unit, the single phase motor comprising: a stator having a stator core that includes a stack height chosen to be a height between 4.25 inches and 4.75 inches, the stator core defining plurality of slots positioned radially about an interior of the stator core and windings located within the plurality of slots, the windings include a main winding and a start winding and each of the main winding and start winding are formed from a conducting wire that includes aluminum; a slot fill ratio chosen to be a ratio between 0.64 and 0.72; and a rotor disposed concentrically within the stator, the rotor including an outer periphery and aluminum bars evenly spaced about the outer periphery, a number of aluminum bars chosen between 34 and 36. ### Claim 12 (depends on 11) The scroll compressor of claim 11, wherein the single phase motor has an operating voltage range between 200 and 265 volts. ### Claim 13 (depends on 11) The scroll compressor of claim 11, wherein the rotor resistance is between 0.9 and 1.8 ohms. ### Claim 14 A scroll compressor, the scroll compressor comprising: a compression unit; and a single phase motor driving the compression unit, the single phase motor comprising: a stator having a stator core that includes a stack height chosen to be a height between a height between 4.25 inches and 5.125 inches, the stator core defining plurality of slots positioned radially about an interior of the stator core and windings located within the plurality of slots, the windings include a main winding and a start winding and each of the main winding and start winding are formed from a conducting wire that includes aluminum; a slot fill ratio chosen to be a ratio between 0.65 and 0.74; and a rotor disposed concentrically within the stator, the rotor including an outer periphery and aluminum bars evenly spaced about the outer periphery, a number of aluminum bars chosen between 36 and 42. ### Claim 15 (depends on 14) The scroll compressor of claim 14, wherein the single phase motor has an operating voltage range between 200 and 265 volts. ### Claim 16 (depends on 14) The scroll compressor of claim 14, wherein the rotor resistance is between 0.4 and 1.1 ohms. ### Claim 17 (depends on 11, 14) The scroll compressors of claims 11 and 14, wherein the plurality of slots has 24 slots.