EP3066748A2 - Stepper drive motor - Google Patents

Stepper drive motor

Info

Publication number
EP3066748A2
EP3066748A2 EP14796046.2A EP14796046A EP3066748A2 EP 3066748 A2 EP3066748 A2 EP 3066748A2 EP 14796046 A EP14796046 A EP 14796046A EP 3066748 A2 EP3066748 A2 EP 3066748A2
Authority
EP
European Patent Office
Prior art keywords
rotor
drive motor
stepper drive
connector
stator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14796046.2A
Other languages
German (de)
French (fr)
Inventor
Kun Chen
Dian Hong
Tao Cheng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aumovio Germany GmbH
Original Assignee
Continental Automotive Technologies GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Continental Automotive Technologies GmbH filed Critical Continental Automotive Technologies GmbH
Publication of EP3066748A2 publication Critical patent/EP3066748A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
    • H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
    • H02K37/12—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets
    • H02K37/14—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/52—Fastening salient pole windings or connections thereto
    • H02K3/521—Fastening salient pole windings or connections thereto applicable to stators only
    • H02K3/525—Annular coils, e.g. for cores of the claw-pole type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa

Definitions

  • the present device relates to the mechanical field, particularly to a stepper drive motor.
  • a system for self-adaptively controlling the ir ⁇ radiation direction of an automobile lamp is proposed in the relevant industry, which system is turned in a left-right and an upper-lower direction as a function of a steering angle of a steering wheel and an elevation and azimuth angle of a body suspension system, such that the irradiation direction of the automobile lamp (especially the headlight) may be oriented either in the linear traveling direction, or in the direction to which a steering operation by the driver is targeted, and thus the system plays a significant role in improving the safety in operation of the automobile.
  • a stepper drive motor for example, a linear stepper drive motor
  • a connector of a stator of the linear stepper drive motor that is intended to connect to a drive is assembled relatively complexly in prior art.
  • the present device provides a stepper drive motor, comprising: a coil, a stator, a rotor, a flange and a shaft, wherein the coil is wound around the stator;
  • the stator comprises pole pieces, a winding bobbin, a stator housing and a connector, the pole pieces and the stator housing are connected so as to form a magnetic circuit,
  • the winding bobbin is provided with a protrusion
  • the connector is provided with a positioning and guiding structure which is shaped to match the protrusion, and the protrusion of the winding bobbin cooperates with the positioning and guiding structure of the connector to achieve the positioning of the connector;
  • the rotor is arranged between the stator and the shaft; and the shaft extends through an interior of the rotor and a thread on the shaft engages with a thread of the rotor, so that a rotational movement of the rotor is transformed into a movement of the shaft.
  • the stepper drive motor of the present has at least the advantage that in the stepper drive motor of the present device, the protrusion of the winding bobbin cooperates with the positioning and guiding structure of the connector so as to position the connector, enabling a simple assembly of the stator connector.
  • Figure 1 shows an exploded view of a stepper drive motor as claimed in a particular embodiment of the present device ;
  • figure 2 shows a sectional view of a stepper drive motor as claimed in a particular embodiment of the present device ;
  • figure 3 shows an exploded view of a stator of a stepper drive motor as claimed in a particular embodiment of the present device ;
  • figure 4 shows a connector of a stator of a stepper drive motor as claimed in a particular embodiment of the present device .
  • stepper drive motor as claimed in an embodiment of the present device will be described below with reference to the drawings.
  • many specific details are set forth in order to enable a person skilled in the art to understand the present device more completely.
  • the present device may be implemented without some of these specific details.
  • the present device is not limited to the particular embodiments described herein. Instead, it is contemplated that any combination of the following features and elements can be used to implement the present device, whether or not they involve different embodiments. Therefore, the following aspects, features, embodiments and advantages are merely used for illustrative purposes and should not be regarded as elements or definitions of the claims, unless explicitly stated in the claims .
  • a stepper drive motor in the prior art has at least the dis ⁇ advantage that a connector of a stator of the linear stepper drive motor that is intended to connect to a drive is assembled relatively complexly in prior art. In addition, the sealing performance of the connector is not good, and the reliability is poor in harsh environments.
  • a particular embodiment of a stepper drive motor as claimed in the present device is shown in figures 1 and 2.
  • the stepper drive motor comprises: a coil 1, a sealant 2, a stator comprising pole pieces 31, a winding bobbin 32, a stator housing 33 and a connector 34, a bearing 4, a rotor 5, a ball head 6, a flange 7, a shaft 8, a front cover 9, a rear cover 10 and a bearing sleeve 11.
  • the coil 1 may comprise two copper coils, which are wound around the stator and used for generating a magnetic field. Partic ⁇ ularly, the coil 1 may be wound around the winding bobbin 32 of the stator.
  • the stator has the pole pieces 31, the winding bobbin 32, the stator housing 33 and the connector 34.
  • the pole pieces 31 and the stator housing 33 are connected so as to form a magnetic circuit.
  • the stator may have two pole pieces; however, it should be understood that the stator may have another number of pole pieces, without departing from the scope of the present device.
  • the connector 34 is used to be connected to a drive, and the connector 34 may be closed by the sealant 2.
  • Figure 3 shows an exploded view of a stator of a stepper drive motor as claimed in a particular embodiment of the present device
  • figure 4 shows a connector of a stator of a stepper drive motor as claimed in a particular embodiment of the present device.
  • the main features of the stator of the present device are as follows: the winding bobbin 32 is provided with a protrusion 320, the connector 34 is provided with a positioning and guiding structure 341 which is shaped to match the protrusion 320, and the protrusion 320 of the bobbin 32 cooperates with the positioning and guiding structure 341 of the connector 34 so as to position the connector 34 on the winding bobbin 32.
  • the protrusion 320 is provided with bobbin pins 321 thereon, the connector 34 is provided with connector pins 342, and the bobbin pins 321 and the connector pins 342 are connected together by laser welding or argon arc welding.
  • the winding bobbin 32 may be provided with four bobbin pins 321, and accordingly, the connector 34 is provided with four connector pins 342.
  • the winding bobbin 32 may be provided with another number of bobbin pins 321 and the connector 34 may be provided with a corresponding number of connector pins 342, without departing from the scope of the present device.
  • the sealant can be injected into the interior of the connector 34 to seal the welding zone, so as to protect the welding zone. Whether or not the sealant is required may depend on the specific application by a customer.
  • the rotor 5 may be, for example, a permanent magnet rotor.
  • the rotor 5 may interact with a stator magnetic field, the magnetic field is generated by the stator under the effect of an input signal, and the rotor 5 is rotated under the action of the magnetic field.
  • the magnet of the rotor 5 is generally positioned inside the stator, and the rotor 5 is arranged within the stator by means of the bearing 4. For example, when the two copper coils are energized, the rotor is locked in a balanced position under the action of the magnetic force. When the current direction of one of the copper coils is changed, the stator magnetic field will be rotated by, for example, 15 degrees, and the rotor will consequently rotate by 15 degrees under the action of the magnetic force. If the currents passing through the two copper coils change as claimed in a certain rule, the rotor will perform a regular motion (e.g. rotating in a forward or reverse direction) following the change in the stator magnetic field.
  • a regular motion e
  • the shaft 8 extends through the interior of the rotor 5 and a thread on the shaft 8 is engaged with a thread of the rotor 5, so that the rotational movement of the rotor 5 is transformed into a movement of the shaft, such as a linear movement.
  • the shaft 8 may be of a flat structure or another type of structure, the front cover 9, which is connected to the flange 7, can cooperate with the shaft 8 so as to limit the rotational movement of the shaft 8 with the rotor 5, such that the shaft 8 can only move linearly in the axial direction.
  • a cross section of the guiding portion of the shaft 8 may be of a D shape (single flat face or double flat faces) , a central hole of the respective front cover 9 is correspondingly shaped, and due to the flat structure, the rotational movement of the shaft 8 is limited such that only linear movement is allowed.
  • the bearing 4 is arranged at one end portion of the rotor 5
  • An inner ring of the bearing 4 may be ultrasonically welded to the rotor by means of the bearing sleeve 11 so as to rotate with the rotor, and an outer ring of the bearing 4 is fixedly connected to the flange 7.
  • the front cover 9 and the stator housing 33 may apply an axial pressure to the outer ring of the bearing 4 to further position the bearing 4.
  • the bearing 4 is fixed to the rotor 5 by ultrasonic welding with the aid of the bearing sleeve 11.
  • the stepper drive motor of the present device may have another number of bearings, such as a large and a small bearing which are respectively arranged at the two ends of the rotor, without departing from the scope of the present device.
  • a wave spring for example, may be arranged to pre-load the large bearing and the small bearing, on one hand improving the transmission quality of the large bearing and the small bearing, and on the other hand eliminating an axial clearance between the large bearing and the small bearing, thereby ensuring that the rotor cannot move axially and improving the accuracy of the linear motion of the shaft.
  • the ball head 6 is connected at the output end of the shaft 8, and the ball head 6 is used to connect to a user terminal.
  • the stepper drive motor of the present device can be applied in a variety of environments; for example, the stepper drive motor of the present device can be used to control the irradiation direction of an automobile lamp.
  • the protrusion of the bobbin cooperates with the positioning and guiding structure of the connector so as to position the connector, enabling a simple assembly of the stator connector.
  • the sealing performance of the connector is enhanced, and the reliability in harsh environments is improved.
  • the stampings of the stepper drive motor of the present device can be connected easily, such as the flange, the front and rear covers, the stator housing and the pole pieces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)

Abstract

Stepper drive motor Provided is a stepper drive motor, comprising a coil, a stator, a rotor and a shaft, wherein the coil is wound around the stator; the stator comprises pole pieces, a winding bobbin, a stator housing and a connector, the pole pieces and the stator housing are connected so as to form a magnetic circuit, the winding bobbin is provided with a protrusion, the connector is provided with a positioning and guiding structure which is shaped to match the protrusion, and the protrusion of the winding bobbin cooperates with the positioning and guiding structure of the connector so as to achieve the positioning of the connector; the rotor is arranged between the stator and the shaft; and the shaft extends through an interior of the rotor and a thread on the shaft is engaged with a thread of the rotor, so that the rotational movement of the rotor is transformed into a movement of the shaft. In the stepper drive motor of the present device, the protrusion of the bobbin cooperates with the positioning and guiding structure of the connector so as to position the connector, enabling a simple assembly of the stator connector. (Figure 2)

Description

Description
Stepper drive motor Technical Field
The present device relates to the mechanical field, particularly to a stepper drive motor. Background Art
In order to improve the safety in operation and traveling of an automobile, a system for self-adaptively controlling the ir¬ radiation direction of an automobile lamp is proposed in the relevant industry, which system is turned in a left-right and an upper-lower direction as a function of a steering angle of a steering wheel and an elevation and azimuth angle of a body suspension system, such that the irradiation direction of the automobile lamp (especially the headlight) may be oriented either in the linear traveling direction, or in the direction to which a steering operation by the driver is targeted, and thus the system plays a significant role in improving the safety in operation of the automobile. In the system for controlling an automobile lamp, at present a stepper drive motor (for example, a linear stepper drive motor) has been used as the drive device; however, a connector of a stator of the linear stepper drive motor that is intended to connect to a drive is assembled relatively complexly in prior art. Contents of the Device
In order to solve the above-mentioned problem, the present device provides a stepper drive motor, comprising: a coil, a stator, a rotor, a flange and a shaft, wherein the coil is wound around the stator; the stator comprises pole pieces, a winding bobbin, a stator housing and a connector, the pole pieces and the stator housing are connected so as to form a magnetic circuit, the winding bobbin is provided with a protrusion, the connector is provided with a positioning and guiding structure which is shaped to match the protrusion, and the protrusion of the winding bobbin cooperates with the positioning and guiding structure of the connector to achieve the positioning of the connector; the rotor is arranged between the stator and the shaft; and the shaft extends through an interior of the rotor and a thread on the shaft engages with a thread of the rotor, so that a rotational movement of the rotor is transformed into a movement of the shaft.
Compared with the prior art, the stepper drive motor of the present has at least the advantage that in the stepper drive motor of the present device, the protrusion of the winding bobbin cooperates with the positioning and guiding structure of the connector so as to position the connector, enabling a simple assembly of the stator connector.
Description of Drawings
Figure 1 shows an exploded view of a stepper drive motor as claimed in a particular embodiment of the present device ;
figure 2 shows a sectional view of a stepper drive motor as claimed in a particular embodiment of the present device ;
figure 3 shows an exploded view of a stator of a stepper drive motor as claimed in a particular embodiment of the present device ; and
figure 4 shows a connector of a stator of a stepper drive motor as claimed in a particular embodiment of the present device .
Particular Embodiments
The stepper drive motor as claimed in an embodiment of the present device will be described below with reference to the drawings. In the following description, many specific details are set forth in order to enable a person skilled in the art to understand the present device more completely. However, it would be apparent to a person skilled in the field that the present device may be implemented without some of these specific details. Furthermore, it should be understood that the present device is not limited to the particular embodiments described herein. Instead, it is contemplated that any combination of the following features and elements can be used to implement the present device, whether or not they involve different embodiments. Therefore, the following aspects, features, embodiments and advantages are merely used for illustrative purposes and should not be regarded as elements or definitions of the claims, unless explicitly stated in the claims .
A stepper drive motor in the prior art has at least the dis¬ advantage that a connector of a stator of the linear stepper drive motor that is intended to connect to a drive is assembled relatively complexly in prior art. In addition, the sealing performance of the connector is not good, and the reliability is poor in harsh environments. A particular embodiment of a stepper drive motor as claimed in the present device is shown in figures 1 and 2. The stepper drive motor comprises: a coil 1, a sealant 2, a stator comprising pole pieces 31, a winding bobbin 32, a stator housing 33 and a connector 34, a bearing 4, a rotor 5, a ball head 6, a flange 7, a shaft 8, a front cover 9, a rear cover 10 and a bearing sleeve 11.
The coil 1 may comprise two copper coils, which are wound around the stator and used for generating a magnetic field. Partic¬ ularly, the coil 1 may be wound around the winding bobbin 32 of the stator.
The stator has the pole pieces 31, the winding bobbin 32, the stator housing 33 and the connector 34. The pole pieces 31 and the stator housing 33 are connected so as to form a magnetic circuit. For example, the stator may have two pole pieces; however, it should be understood that the stator may have another number of pole pieces, without departing from the scope of the present device. The connector 34 is used to be connected to a drive, and the connector 34 may be closed by the sealant 2.
Figure 3 shows an exploded view of a stator of a stepper drive motor as claimed in a particular embodiment of the present device; and figure 4 shows a connector of a stator of a stepper drive motor as claimed in a particular embodiment of the present device. As shown in figures 3 and 4, the main features of the stator of the present device are as follows: the winding bobbin 32 is provided with a protrusion 320, the connector 34 is provided with a positioning and guiding structure 341 which is shaped to match the protrusion 320, and the protrusion 320 of the bobbin 32 cooperates with the positioning and guiding structure 341 of the connector 34 so as to position the connector 34 on the winding bobbin 32. Further, the protrusion 320 is provided with bobbin pins 321 thereon, the connector 34 is provided with connector pins 342, and the bobbin pins 321 and the connector pins 342 are connected together by laser welding or argon arc welding. For example, the winding bobbin 32 may be provided with four bobbin pins 321, and accordingly, the connector 34 is provided with four connector pins 342. However, it should be understood that the winding bobbin 32 may be provided with another number of bobbin pins 321 and the connector 34 may be provided with a corresponding number of connector pins 342, without departing from the scope of the present device. After the welding is completed, the sealant can be injected into the interior of the connector 34 to seal the welding zone, so as to protect the welding zone. Whether or not the sealant is required may depend on the specific application by a customer.
The rotor 5 may be, for example, a permanent magnet rotor. The rotor 5 may interact with a stator magnetic field, the magnetic field is generated by the stator under the effect of an input signal, and the rotor 5 is rotated under the action of the magnetic field. The magnet of the rotor 5 is generally positioned inside the stator, and the rotor 5 is arranged within the stator by means of the bearing 4. For example, when the two copper coils are energized, the rotor is locked in a balanced position under the action of the magnetic force. When the current direction of one of the copper coils is changed, the stator magnetic field will be rotated by, for example, 15 degrees, and the rotor will consequently rotate by 15 degrees under the action of the magnetic force. If the currents passing through the two copper coils change as claimed in a certain rule, the rotor will perform a regular motion (e.g. rotating in a forward or reverse direction) following the change in the stator magnetic field.
The shaft 8 extends through the interior of the rotor 5 and a thread on the shaft 8 is engaged with a thread of the rotor 5, so that the rotational movement of the rotor 5 is transformed into a movement of the shaft, such as a linear movement. The shaft 8 may be of a flat structure or another type of structure, the front cover 9, which is connected to the flange 7, can cooperate with the shaft 8 so as to limit the rotational movement of the shaft 8 with the rotor 5, such that the shaft 8 can only move linearly in the axial direction. Particularly, a cross section of the guiding portion of the shaft 8 may be of a D shape (single flat face or double flat faces) , a central hole of the respective front cover 9 is correspondingly shaped, and due to the flat structure, the rotational movement of the shaft 8 is limited such that only linear movement is allowed. The bearing 4 is arranged at one end portion of the rotor 5
(preferably the end portion of the rotor close to the output end of the shaft 8) so as to hold the rotor 5, thereby ensuring the transmission efficiency of the transformation from the rotational movement of the rotor 5 into the linear movement of the shaft. An inner ring of the bearing 4 may be ultrasonically welded to the rotor by means of the bearing sleeve 11 so as to rotate with the rotor, and an outer ring of the bearing 4 is fixedly connected to the flange 7. Moreover, the front cover 9 and the stator housing 33 may apply an axial pressure to the outer ring of the bearing 4 to further position the bearing 4. In a preferred embodiment, the bearing 4 is fixed to the rotor 5 by ultrasonic welding with the aid of the bearing sleeve 11. However, it should be understood that the stepper drive motor of the present device may have another number of bearings, such as a large and a small bearing which are respectively arranged at the two ends of the rotor, without departing from the scope of the present device. When the stepper drive motor has the large and small bearings which are respectively arranged at the two ends of the rotor, a wave spring, for example, may be arranged to pre-load the large bearing and the small bearing, on one hand improving the transmission quality of the large bearing and the small bearing, and on the other hand eliminating an axial clearance between the large bearing and the small bearing, thereby ensuring that the rotor cannot move axially and improving the accuracy of the linear motion of the shaft.
The ball head 6 is connected at the output end of the shaft 8, and the ball head 6 is used to connect to a user terminal.
The stepper drive motor of the present device can be applied in a variety of environments; for example, the stepper drive motor of the present device can be used to control the irradiation direction of an automobile lamp.
In the stepper drive motor of the present device, the protrusion of the bobbin cooperates with the positioning and guiding structure of the connector so as to position the connector, enabling a simple assembly of the stator connector. In addition, the sealing performance of the connector is enhanced, and the reliability in harsh environments is improved. Moreover, the stampings of the stepper drive motor of the present device can be connected easily, such as the flange, the front and rear covers, the stator housing and the pole pieces.
While the present device has been disclosed above with respect to the preferred embodiments, the present device is not limited thereto. Various changes and modifications made by any person skilled in the art without departing from the spirit and scope of the present device should be included within the scope of protection of the present device, and accordingly, the scope of protection of the present device should be based on the scope defined by the claims.

Claims

Patent claims stepper drive motor, c h a r a c t e r i z e d i n h a t said stepper drive motor comprises a coil, a stator, rotor, a flange and a shaft, wherein,
said coil is wound around said stator;
said stator comprises pole pieces, a winding bobbin, a stator housing and a connector, said pole pieces and said stator housing are connected so as to form a magnetic circuit, said winding bobbin is provided with a pro¬ trusion, said connector is provided with a positioning and guiding structure which is shaped to match the protrusion, and the protrusion of said bobbin cooperates with the positioning and guiding structure of said connector so as to achieve the positioning of said connector;
said rotor is arranged between said stator and said shaft; and
said shaft extends through an interior of said rotor and a thread on said shaft engages with a thread of said rotor, so that a rotational movement of said rotor is transformed into a movement of said shaft.
The stepper drive motor as claimed in claim 1,
c h a r a c t e r i z e d i n t h a t said protrusion is provided with bobbin pins thereon, said connector is provided with connector pins, and said bobbin pins and said connector pins are connected together by laser welding or argon arc welding. 3. The stepper drive motor as claimed in claim 2,
c h a r a c t e r i z e d i n t h a t a sealant is injected into the interior of the connector so as to seal the welding zone .
The stepper drive motor as claimed in claim 1,
c h a r a c t e r i z e d i n t h a t said stepper drive motor comprises a bearing, said bearing is arranged at one end portion of said rotor close to an output end of said shaft so as to hold said rotor, an inner ring of said bearing is fixedly connected to said rotor so as to rotate with said rotor, and an outer ring of said bearing is connected to said stator via said flange so as to be fixed to said stator.
The stepper drive motor as claimed in claim 4,
c h a r a c t e r i z e d i n t h a t said bearing is fixed to said rotor by ultrasonic welding with the aid of a bearing sleeve .
The stepper drive motor as claimed in claim 1,
c h a r a c t e r i z e d i n t h a t said stepper drive motor comprises a small bearing, a large bearing and a wave spring, said small bearing and said large bearing are respectively arranged at two ends of said rotor so as to hold said rotor, and said wave spring is used to pre-load said large bearing and said small bearing in order to eliminate an axial clearance between said large bearing and said small bearing .
The stepper drive motor as claimed in claim 1,
c h a r a c t e r i z e d i n t h a t said stepper drive motor further comprises a front cover which is connected to said flange, a central hole of said front cover is shaped to match a flat cross-sectional shape of a guiding portion of said shaft so as to limit the rotational movement of said shaft with said rotor.
The stepper drive motor as claimed in claim 1,
c h a r a c t e r i z e d i n t h a t said rotor is a permanent magnet rotor.
The stepper drive motor as claimed in claim 1,
c h a r a c t e r i z e d i n t h a t said stepper drive motor further comprises a ball head, which is connected at the output end of said shaft and is used to connect to a user terminal .
EP14796046.2A 2013-11-07 2014-11-06 Stepper drive motor Withdrawn EP3066748A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201320701314.5U CN203522493U (en) 2013-11-07 2013-11-07 stepping drive motor
PCT/EP2014/073916 WO2015067690A2 (en) 2013-11-07 2014-11-06 Stepper drive motor

Publications (1)

Publication Number Publication Date
EP3066748A2 true EP3066748A2 (en) 2016-09-14

Family

ID=50381366

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14796046.2A Withdrawn EP3066748A2 (en) 2013-11-07 2014-11-06 Stepper drive motor

Country Status (3)

Country Link
EP (1) EP3066748A2 (en)
CN (1) CN203522493U (en)
WO (1) WO2015067690A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3369162A1 (en) * 2015-10-30 2018-09-05 Continental Automotive GmbH Rotor assembly and stepping motor including same
CN106655566A (en) * 2015-10-30 2017-05-10 大陆汽车电子(芜湖)有限公司 Rotor assembly and stepping drive motor comprising same
JP6869738B2 (en) * 2017-02-08 2021-05-12 ミネベアミツミ株式会社 Linear actuator

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Publication number Priority date Publication date Assignee Title
JP3911671B2 (en) * 2002-05-30 2007-05-09 ミネベア株式会社 motor
JP4594026B2 (en) * 2004-10-07 2010-12-08 多摩川精機株式会社 Resolver external conductor fixing structure
US20080164784A1 (en) * 2007-01-04 2008-07-10 Hsiu-Ming Huang Step-by-step motor able to carry out up-and-down motion
JP2008263691A (en) * 2007-04-11 2008-10-30 Minebea Co Ltd Small diameter stepping motor, its bobbin, and assembly method of motor
KR101567061B1 (en) * 2008-07-28 2015-11-09 엘지이노텍 주식회사 Connecting structure between step actuator and cases of printed circuit board
KR101143264B1 (en) * 2009-07-03 2012-05-14 주식회사 모아텍 Step motor
JP5563272B2 (en) * 2009-10-21 2014-07-30 ミネベア株式会社 Stepping motor

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Title
See references of WO2015067690A2 *

Also Published As

Publication number Publication date
WO2015067690A2 (en) 2015-05-14
CN203522493U (en) 2014-04-02
WO2015067690A3 (en) 2015-08-06

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