# US 12,191,742 B2 · Rotating motor and fan > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,191,742 B2 - Document ID: US12191742B2 - Status: Granted - Kind: B2 - Application number: 17/826,581 - Filed: 2022-05-27 - Published: 2022-09-08 - Granted: 2025-01-07 - Earliest claimed: 2020-05-15 - Assignees: Guangdong Welling Motor Manufacturing Co., Ltd. - Applicants: Guangdong Welling Motor Manufacturing Co., Ltd. - Inventors: Minghu Yu; Chuang Chi; Yajun Zuo - Web page: https://patentgrep.com/patent/US12191742B2 ## CPC - H02K 5/1732: {radially supporting the rotary shaft at both ends of the rotor (H02K5/1737 takes precedence)} - F04D 17/10: for compressing or evacuating - F04D 17/16: for displacing without appreciable compression - F04D 25/0606: {the electric motor being specially adapted for integration in the pump} - H02K 1/146: {consisting of a generally annular yoke with salient poles} - H02K 1/165: {Shape, form or location of the slots} - H02K 1/2733: Annular magnets - H02K 5/15: Mounting arrangements for bearing-shields or end plates - H02K 5/161: {radially supporting the rotary shaft at both ends of the rotor (H02K5/165, H02K5/167, H02K5/173 take precedence)} - H02K 7/083: {radially supporting the rotary shaft at both ends of the rotor (H02K7/086, H02K7/09 take precedence)} - H02K 11/33: Drive circuits, e.g. power electronics (H02K11/38 takes precedence) - H02K 2213/03: Machines characterised by numerical values, ranges, mathematical expressions or similar information - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) ## Abstract A rotating motor and a fan are provided. A first bearing seat, a second bearing seat and a plurality of support rods of the motor are arranged to form a supporting frame of the motor. Accordingly, the coaxiality between the first bearing seat and the second bearing seat can be ensured. The motor has a rotor. The outer diameter of the permanent magnet of the rotor is disposed to be greater than or equal to the outer diameter of a second bearing of the rotor. The outer diameter of a first bearing of the rotor is disposed to be greater than or equal to the outer diameter of the permanent magnet of the rotor. Accordingly, the entire rotor of the rotating motor can be directly mounted on the supporting frame. ## Claims ### Claim 1 A rotating motor comprising: a stator, a rotor, and a supporting frame; wherein: the rotor comprises a rotating shaft, a permanent magnet mounted on the rotating shaft, and a first bearing and a second bearing respectively mounted on two ends of the rotating shaft, wherein the first bearing and the second bearing are respectively located at two ends of the permanent magnet; the stator comprises a stator yoke sleeved on the supporting frame, a plurality of stator teeth arranged on the stator yoke, and coils respectively wound on the stator teeth; the supporting frame comprises a first bearing seat, a second bearing seat, and a plurality of support rods supporting the stator yoke; two ends of each support rod are respectively connected to the first bearing seat and the second bearing seat, and an interval space is provided between two adjacent support rods and is configured to place the stator teeth; and the first bearing is mounted in the first bearing seat, the second bearing is mounted in the second bearing seat, an outer diameter of the permanent magnet is larger than or equal to an outer diameter of the second bearing, and an outer diameter of the first bearing is larger than or equal to the outer diameter of the permanent magnet. ### Claim 2 (depends on 1) The rotating motor according to claim 1, wherein an inner diameter of an inner circular hole of the stator teeth is larger than an outer diameter of the second bearing seat. ### Claim 3 (depends on 1) The rotating motor according to claim 1, further comprising gimbal rings configured to perform dynamic balance calibration, wherein: the gimbal rings are mounted on the rotating shaft, and an outer diameter of each gimbal ring is less than or equal to the outer diameter of the first bearing. ### Claim 4 (depends on 3) The rotating motor according to claim 3, wherein the gimbal rings are respectively mounted at two ends of the permanent magnet. ### Claim 5 (depends on 4) The rotating motor according to claim 4, wherein: the outer diameter of a gimbal ring close to the first bearing is greater than or equal to the outer diameter of the permanent magnet, and the outer diameter of a gimbal ring away from the first bearing is less than or equal to the outer diameter of the permanent magnet. ### Claim 6 (depends on 1) The rotating motor according to claim 1, further comprising an induction magnetic ring mounted on the rotating shaft, wherein the induction magnetic ring is configured to induce a speed and an angle of rotation of the rotating shaft. ### Claim 7 (depends on 6) The rotating motor according to claim 6, wherein the outer diameter of the induction magnetic ring is less than or equal to the outer diameter of the second bearing. ### Claim 8 (depends on 1) The rotating motor according to claim 1, further comprising at least one positioning protrusion provided on an inner side surface of the stator yoke, wherein the at least one positioning protrusion is configured to position with the support rods. ### Claim 9 (depends on 8) The rotating motor according to claim 8, wherein: the stator yoke is provided with the positioning protrusions on two sides corresponding to each of the support rods, and a positioning groove is formed between two adjacent positioning protrusions and configured to fit and accommodate the support rods. ### Claim 10 (depends on 1) The rotating motor according to claim 1, wherein the stator yoke is bonded and fixed on the support rods. ### Claim 11 (depends on 10) The rotating motor according to claim 10, wherein: at least one of the support rods is provided with a slot, the slot extends along a length direction of the support rod, and the slot is located on the support rod on the side close to the stator yoke. ### Claim 12 (depends on 11) The rotating motor according to claim 11, wherein a length of the slot along an axial direction of the rotating shaft is less than a length of an axial direction of the stator yoke. ### Claim 13 (depends on 11) The rotating motor according to claim 11, wherein each of the support rods is provided with the slot. ### Claim 14 (depends on 1) The rotating motor according to claim 1, wherein a soft washer is mounted in the first bearing seat, and the first bearing is supported in the soft washer. ### Claim 15 (depends on 14) The rotating motor according to claim 14, wherein: a plurality of accommodating grooves are spaced apart on an inner surface of a radial direction of the first bearing seat, and the soft washer comprises a plurality of soft arc-shaped petals respectively fitted into the plurality of accommodating grooves, and an inner diameter of each of the plurality of soft arc-shaped petals is less than an inner diameter of the first bearing seat. ### Claim 16 (depends on 15) The rotating motor according to claim 15, wherein each of the plurality of accommodating grooves penetrates through the first bearing seat in an axial direction. ### Claim 17 (depends on 16) The rotating motor according to claim 16, wherein at least one side of each of the plurality of soft arc-shaped petals is provided with a rib protruding outwardly along a radial direction of the plurality of soft arc-shaped petal. ### Claim 18 (depends on 17) The rotating motor according to claim 17, wherein a plurality of the ribs on at least one side of the plurality of soft arc-shaped petals are connected in a ring shape. ### Claim 19 (depends on 14) The rotating motor according to claim 14, wherein the soft washer is annular, and the soft washer is provided between the first bearing and the first bearing seat. ### Claim 20 A fan comprising: a rotating motor; and an impeller mounted on a rotating shaft of the rotating motor, wherein the rotating motor comprises a stator, a rotor and a supporting frame; wherein: the rotor comprises the rotating shaft, a permanent magnet mounted on the rotating shaft, and a first bearing and a second bearing respectively mounted on two ends of the rotating shaft, wherein the first bearing and the second bearing are respectively located at two ends of the permanent magnet; the stator comprises a stator yoke sleeved on the supporting frame, a plurality of stator teeth arranged on the stator yoke, and coils respectively wound on the stator teeth; the supporting frame comprises a first bearing seat, a second bearing seat, and a plurality of support rods supporting the stator yoke; two ends of each support rod are respectively connected to the first bearing seat and the second bearing seat, and an interval space is provided between two adjacent support rods and configured to place the stator teeth; and the first bearing is mounted in the first bearing seat, the second bearing is mounted in the second bearing seat, an outer diameter of the permanent magnet is larger than or equal to an outer diameter of the second bearing, and an outer diameter of the first bearing is larger than or equal to the outer diameter of the permanent magnet.