Invention Grant
- Patent Title: Linear stepper motor, device and method for manufacturing the linear stepper motor
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Application No.: US15871582Application Date: 2018-01-15
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Publication No.: US10601294B2Publication Date: 2020-03-24
- Inventor: Gerd Howack , Daniel Gerhard Barthel , Andreas Kurtz , Günter Albrecht
- Applicant: Johnson Electric S.A.
- Applicant Address: CH Murten
- Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
- Current Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
- Current Assignee Address: CH Murten
- Agency: Muncy, Geissler, Olds & Lowe, PC
- Priority: DE102017102630 20170209
- Main IPC: H02K41/03
- IPC: H02K41/03 ; F16K31/04 ; H02K7/08 ; F16K31/06 ; H02K15/02 ; H02K7/06 ; H02K5/173 ; H02K15/00 ; H02K15/14 ; H02K37/14 ; H02K5/15

Abstract:
A linear stepper motor includes a stator, a rotor, a cover and a longitudinally displaceable actuating rod. The stator is formed as a fully overmoulded stator assembly. The stator assembly includes a stator overmould. The rotor is received in the stator and includes a spindle. The cover is coupled to the stator assembly on the drive side of the linear stepper motor. The actuating rod is guided by the stator assembly. The spindle is only supported by its tips between two bearing balls between a stator recess of the stator overmould and a cover recess in the cover. A device and a method for manufacturing the linear stepper motor are also provided.
Public/Granted literature
- US20180226871A1 LINEAR STEPPER MOTOR, DEVICE AND METHOD FOR MANUFACTURING THE LINEAR STEPPER MOTOR Public/Granted day:2018-08-09
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