# US 10,320,270 B2 · Hybrid dual-rotor structure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,320,270 B2 - Document ID: US10320270B2 - Status: Granted - Kind: B2 - Application number: 14/968,182 - Filed: 2015-12-14 - Published: 2017-04-13 - Granted: 2019-06-11 - Earliest claimed: 2015-10-13 - Assignees: Industrial Technology Research Institute - Applicants: Industrial Technology Research Institute - Inventors: Ming-Tsan Peng; Shian-Hsuan Huang - Web page: https://patentgrep.com/patent/US10320270B2 ## CPC - H02K 16/02: Machines with one stator and two {or more} rotors - H02K 3/28: Layout of windings or of connections between windings (windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32) - H02P 25/18: with arrangements for switching the windings, e.g. with mechanical switches or relays - H02K 21/16: having annular armature cores with salient poles (with homopolar co-operation H02K21/20) - H02K 21/22: with magnets rotating around the armatures, e.g. flywheel magnetos - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS ## Abstract A hybrid dual-rotor motor structure is provided, which may include a stator, a first rotor, a second rotor, a first coil, and a second coil. The stator may include a plurality of stator teeth. The first rotor, the second rotor, and the stator may arranged in the radial direction of the hybrid dual-rotor motor structure. The first coil may be wound on the stator teeth. The second coil may be wound on the stator teeth; the second coil may include a plurality of sub-coil sets; each of the sub-coil sets may include a plurality of sub-coils connected to each other/one another in series or in parallel; the pole-pair number of the second coil may be the integral multiple of the pole-pair number of the first coil. ## Claims ### Claim 1 A hybrid dual-rotor motor structure, comprising: a stator, comprising a plurality of stator teeth; a first rotor; a second rotor, wherein the stator, the first rotor, and the second rotor are arranged in the radial direction of the hybrid dual-rotor motor structure; a first coil, wound on the stator teeth and connected to the first rotor; and a second coil, wound on the stator teeth and connected to the second rotor, wherein the second coil comprises a plurality of sub-coil sets; each of the sub-coil sets comprises a plurality of sub-coils connected to each other/one another in series or in parallel; a sum of the pole-pair number of the first coil and a pole-pair number of a magnet set of the first rotor is equal to a quantity of the stator teeth, and the pole-pair number of the second coil is equal to a pole-pair number of a magnet set of the second rotor, whereby a magnetic flux linkage between the first coil and the second coil is able to be further reduced so as to independently control the first rotor and the second rotor. ### Claim 2 (depends on 1) The hybrid dual-rotor motor structure of claim 1, wherein the pole-pair number of the first coil is equal to or greater than 1. ### Claim 3 (depends on 2) The hybrid dual-rotor motor structure of claim 2, wherein a quantity of each of the sub-coil sets is equal to a factor of the integral multiple, and the factor is greater than 1. ### Claim 4 (depends on 3) The hybrid dual-rotor motor structure of claim 3, wherein the sub-coil sets are connected to each other/one another in series. ### Claim 5 (depends on 3) The hybrid dual-rotor motor structure of claim 3, wherein the sub-coil sets are connected to each other/one another in parallel. ### Claim 6 (depends on 4) The hybrid dual-rotor motor structure of claim 4, wherein the sub-coils of each sub-coil set are spaced at regular interval or substantially spaced at regular interval and disposed around 0-360° of a mechanical angle of a periphery of the stator, or 0-360° of an electrical angle of a magnetic field of the first coil. ### Claim 7 (depends on 5) The hybrid dual-rotor motor structure of claim 5, wherein the sub-coils of each sub-coil set are spaced at regular interval or substantially spaced at regular interval and disposed around 0-360° of a mechanical angle of a periphery of the stator, or 0-360° of an electrical angle of a magnetic field of the first coil. ### Claim 8 (depends on 1) The hybrid dual-rotor motor structure of claim 1, wherein the first coil and the second coil are toroidal coils. ### Claim 9 (depends on 1) The hybrid dual-rotor motor structure of claim 1, wherein from a radial direction of the hybrid dual-rotor motor structure to perceive, the stator is disposed between the first rotor and the second rotor. ### Claim 10 (depends on 1) The hybrid dual-rotor motor structure of claim 1, wherein from a radial direction of the hybrid dual-rotor motor structure to perceive, the stator is disposed outside the first rotor and the second rotor. ### Claim 11 (depends on 1) The hybrid dual-rotor motor structure of claim 1, wherein from a radial direction of the hybrid dual-rotor motor structure to perceive, the stator is disposed inside the first rotor and the second rotor. ### Claim 12 (depends on 1) The hybrid dual-rotor motor structure of claim 1, wherein the first rotor and the second rotor are permanent-magnet rotors. ### Claim 13 (depends on 1) The hybrid dual-rotor motor structure of claim 1, wherein one of the first rotor and the second rotor is a permanent-magnet rotor, and the other one of the first rotor and the second rotor is an induction rotor. ### Claim 14 (depends on 1) The hybrid dual-rotor motor structure of claim 1, wherein the first coil further comprises a pole-changing structure, and the pole-changing structure comprises a plurality switch elements, and the pole-changing structure is able to change a pole number of the first coil by switching the switch elements. ### Claim 15 (depends on 1) The hybrid dual-rotor motor structure of claim 1, wherein the second coil further comprises a pole-changing structure, and the pole-changing structure comprises a plurality switch elements, and the pole-changing structure is able to change a pole number of the second coil by switching the switch elements. ### Claim 16 (depends on 1) The hybrid dual-rotor motor structure of claim 1, further comprising a speed reducer and an inverter, wherein the inverter is connected to the first coil and the second coil to drive the first rotor and the second rotor respectively; the first rotor is connected to a wheel shaft, and the second rotor is connected to an input of the speed reducer, and an output of the speed reducer is connected to the wheel shaft. ### Claim 17 (depends on 16) The hybrid dual-rotor motor structure of claim 16, wherein a ratio value of a reduction ratio of the speed reducer is equal to a ratio value of a pole-pair number of a magnet set of the first rotor to a pole-pair number of a magnet set of the second rotor. ### Claim 18 (depends on 17) The hybrid dual-rotor motor structure of claim 17, further comprising a first switch and a second switch, wherein the inverter is connected to the first coil via the first switch, and connected to the second coil via the second switch.