# US 11,451,106 B2 · Motor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,451,106 B2 - Document ID: US11451106B2 - Status: Granted - Kind: B2 - Application number: 16/905,495 - Filed: 2020-06-18 - Published: 2020-12-24 - Granted: 2022-09-20 - Earliest claimed: 2019-06-19 - Assignees: Delta Electronics, Inc. - Applicants: Delta Electronics, Inc. - Inventors: Yi-Ta Lu; Wei-Ming Lai; Yun-Hung Chen - Web page: https://patentgrep.com/patent/US11451106B2 ## CPC - H02K 5/10: with arrangements for protection from ingress, e.g. water or fingers - 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 1/2791: Surface mounted magnets; Inset magnets - H02K 1/32: with channels or ducts for flow of cooling medium - H02K 5/18: with ribs or fins for improving heat transfer - H02K 5/22: Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes - H02K 9/06: with fans or impellers driven by the machine shaft - H02K 2203/03: Machines characterised by the wiring boards, i.e. printed circuit boards or similar structures for connecting the winding terminations - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) ## Abstract The present disclosure provides a motor including a base, a stator and a rotor. The stator is disposed on the base. The base includes a cylinder. There is a flange disposed on a side of the cylinder neighboring to the rotor. Fins are axially disposed on the flange, and the periphery of the flange has a breach. The breach is partially extended to the cylinder, and there is also a plurality of fins disposed in the breach. A plurality of air-guiding members are annularly disposed on the periphery of the rotor. The air-guiding members are connected to each other through a connecting rim. The fins on the flange and the air-guiding members of the rotor are both extended axially, thus the interference therebetween is avoided. When the motor rotates, the air-guiding members are able to drive the flow passing through the breach for achieving heat-dissipating effect. ## Claims ### Claim 1 A motor comprising: a stator having a base and a coil mounted on the base; and a rotor sleeved on the stator and rotating along an axis, wherein the rotor comprises a hub, a plurality of air-guiding members extended toward a direction away from the axis are annularly disposed on the hub, the plurality of air-guiding members are connected to each other through a connecting rim, and a through hole is formed between two adjacent air-guiding members and the connecting rim; wherein the base comprises a flange and a cylinder, and the flange is disposed on a side of the cylinder neighboring to the rotor; a breach disposed on the periphery of the flange; and an installation element having a first side and a second side opposite to the first side, wherein the first side is abutted against the flange, wherein a plurality of second fins are disposed in the breach, wherein via the breach, a second heat-dissipating flow flows from the second side to the first side of the installation element passing through the second fins, then, the second heat-dissipating flow flows out of the breach or passes through the through hole. ### Claim 2 (depends on 1) The motor according to claim 1, wherein the breach is extended to the cylinder toward the direction away from the rotor. ### Claim 3 (depends on 1) The motor according to claim 1, wherein the flange comprises a first surface and first fins convexly disposed on the first surface and extended toward the direction away from the axis, and a first gap is formed between two adjacent first fins. ### Claim 4 (depends on 3) The motor according to claim 3, wherein the first fins are partially exposed at the outside of the connecting rim and are partially exposed at the inside of the connecting rim at the direction of the axis. ### Claim 5 (depends on 3) The motor according to claim 3, wherein the connecting rim is disposed at an end of the air-guiding members neighboring to the first fins. ### Claim 6 (depends on 1) The motor according to claim 1, wherein the connecting rim comprises a ring part and a connecting part, and the ring part connects the plurality of air-guiding members. ### Claim 7 (depends on 6) The motor according to claim 6, wherein the connecting part connects the hub and the ring part. ### Claim 8 (depends on 2) The motor according to claim 2, wherein the flange forms a first recess at the breach, and the cylinder forms a second recess at the breach. ### Claim 9 (depends on 8) The motor according to claim 8, wherein a slope is formed at an adjacency of the breach and the cylinder. ### Claim 10 (depends on 1) The motor according to claim 1, wherein the installation element has an opening, and the cylinder of the motor is located in the opening. ### Claim 11 (depends on 10) The motor according to claim 10, wherein the first side and the second side are in communication with each other through the breach. ### Claim 12 (depends on 11) The motor according to claim 11, wherein the plurality of second fins are exposed to the first side and the second side simultaneously. ### Claim 13 A motor comprising: a stator having a base and a coil mounted on the base; a rotor sleeved on the stator and rotating along an axis, wherein the rotor comprises a hub, a plurality of air-guiding members are disposed on the periphery of the hub, an end of the plurality of air-guiding members are connected to each other through a connecting rim, and a through hole is formed among two adjacent air-guiding members and the connecting rim; and the base comprising a flange and a cylinder, wherein the flange is disposed on a side of the cylinder neighboring to the rotor, and a plurality of first fins are disposed on the flange; wherein relative to the connecting rim and the flange respectively, an extension direction of the plurality of air-guiding members is the same as that of the plurality of first fins, wherein the motor comprises a breach disposed on the periphery of the flange and a plurality of second fins disposed in the breach. ### Claim 14 (depends on 13) The motor according to claim 13, wherein the breach partially is extended to the cylinder. ### Claim 15 A motor comprising: a stator having a base and a coil mounted on the base; a rotor sleeved on the stator and rotating along an axis, wherein the rotor comprises a hub, a plurality of air-guiding members are disposed on the periphery of the hub, an end of the plurality of air-guiding members are connected to each other through a connecting rim, and a through hole is formed among two adjacent air-guiding members and the connecting rim; and the base comprising a flange and a cylinder, wherein the flange is disposed on a side of the cylinder neighboring to the rotor, wherein the motor comprises a breach disposed on the periphery of the flange and a plurality of second fins disposed in the breach. ### Claim 16 (depends on 15) The motor according to claim 15, wherein a plurality of first fins are disposed on the flange.