Register information Patent

WO file number: PCT/CN2020/121679 (Status: not pending/lapsed, Query started: December 14, 2025)

Please note: This English version is a non-binding translation of the German register excerpt. Only the German version of the register excerpt is legally binding.

Master data
INIDCriterionFieldContent
Type of IP rightSARTPatent
StatusSTNot pending/lapsed
86WO file numberWAKZPCT/CN2020/121679
87WO publication numberWPN2022077498
54Designation/titleTIHAIRPIN MOTOR, POWER ASSEMBLY, AND VEHICLE
51IPC main classICM
(ICMV)		 H02K 1/16 (2006.01)
86WO application dateWATOct 16, 2020
72InventorINInventor not yet named
Patent division in charge 32
87WO language of publicationWLANGCH - Chinesisch
57AbstractABA hairpin motor, a power assembly, and a vehicle; the hairpin motor comprises a stator and a rotor; the stator comprises a stator winding and a stator core; the stator winding comprises a first phase winding, a second phase winding, and a third phase winding; each phase winding comprises at least one parallel branch circuit, the parallel branch circuits are distributed uniformly and symmetrically, and each parallel branch circuit comprises at least two parallel sub-branch circuits distributed uniformly and symmetrically; the inner wall of the stator core is provided with a plurality of grooves, the plurality of grooves are arranged in an axial direction around the central axis of the stator core and extend in the axial direction of the central axis, and hairpin conductors of the parallel sub-branch circuits are stacked in the grooves. In this way, by combining the parallel branch circuits distributed uniformly and symmetrically with parallel sub-branch circuits of the parallel branch circuits distributed uniformly and symmetrically, balancing of potentials of the three phase windings is well achieved, the generation of circular current of the motor is suppressed or eliminated, and temperature rise of the motor is well alleviated, increasing the working efficiency of the motor.
81Designated WO countriesWDSAE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, IT, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, WS, ZA, ZM, ZW
Published EP/WO documentsEPWOPNOriginal document: WO002022077498A1
Searchable text: WO002022077498A1
43Date of first publicationEVTApr 21, 2022
Date of the first transfer into DPMAregisterEREGTApr 26, 2022
Date of the (most recent) update in DPMAregisterREGTJun 15, 2023
(Show all update days)(Hide all update days)
  • Jun 15, 2023; Jan 31, 2023
    • Historical data not available for this/these date(s)
  • Apr 26, 2022
    • Date of the first transfer into DPMAregister
Procedural data
No.Kind of procedureLegal statusDate of legal/procedural statusDate of first publicationAlle Details anzeigen
1 Pre-registration procedure The application is under preliminary examination Oct 16, 2020  Details anzeigen
2 Search procedure Request for search effectively filed Oct 16, 2020  Details anzeigen
3 Procedure relating to PCT application WO first publication with search report Apr 21, 2022  Details anzeigen
4 Procedure relating to PCT application Ceased to have effect for DE May 17, 2023  Details anzeigen
View procedures Pre-registration procedure (No.: 1)
INIDCriterionFieldContent Close details
Type of procedureVARTPre-registration procedure
Legal/procedural statusVSTThe application is under preliminary examination
Date of legal/procedural statusVSTTOct 16, 2020
Date of update of the procedureREGTApr 26, 2022
View procedures Search procedure (No.: 2)
INIDCriterionFieldContent Close details
Type of procedureVARTSearch procedure
Legal/procedural statusVSTRequest for search effectively filed
Date of legal/procedural statusVSTTOct 16, 2020
Third party request No
Date of receiptAEGTOct 16, 2020
Date of update of the procedureREGTApr 26, 2022
View procedures Procedure relating to PCT application (No.: 3)
INIDCriterionFieldContent Close details
Type of procedureVARTProcedure relating to PCT application
Legal/procedural statusVSTWO first publication with search report
Date of legal/procedural statusVSTTApr 21, 2022
Date of update of the procedureREGTApr 26, 2022
View procedures Procedure relating to PCT application (No.: 4)
INIDCriterionFieldContent Close details
Type of procedureVARTProcedure relating to PCT application
Legal/procedural statusVSTCeased to have effect for DE
Date of legal/procedural statusVSTTMay 17, 2023
Date of update of the procedureREGTJun 15, 2023