CN204906161U - Step drive motor - Google Patents
Step drive motor Download PDFInfo
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- CN204906161U CN204906161U CN201520734141.6U CN201520734141U CN204906161U CN 204906161 U CN204906161 U CN 204906161U CN 201520734141 U CN201520734141 U CN 201520734141U CN 204906161 U CN204906161 U CN 204906161U
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Abstract
The utility model provides a step drive motor, includes stator, rotor and axle, wherein, the rotor sets up the stator with between the axle, the axle passes the rotor is inside and pass through epaxial screw thread with the screw thread of rotor is mutually supported, thereby will the rotary motion of rotor converts to the motion of axle, the stator is organized by the pole piece including different types of pole piece and is formed through moulding plastics. The utility model discloses an among the step drive motor, the stator is organized by the pole piece and is formed through moulding plastics to reduced the part figure of stator and simplified assembly process, the design of different types of pole piece is favorable to the location of pole piece in injection mold moreover.
Description
Technical field
The utility model relates to mechanical field, particularly a kind of stepper drive motors.
Background technology
For the application of current puffer, usually use carburetor directly mixing air and fuel oil.In this applications, for each burning, iff the part (such as, when idling mode) needing to use engine power to export, need to control more accurately to enter engine air capacity.This is very low in such as speed, etc. red light or parking to turn on the aircondition etc. state time usually occur.
At present, stepper drive motors is used for the air mass flow of the air throttle controlling vehicle more accurately, but, the stator of stepper drive motors of the prior art is assembled by several pole pieces, coil rack and stator casing, thus causes the number of parts of the stator of stepper drive motors of the prior art more and assembling process complicated.
Utility model content
In order to solve the problem, the stepper drive motors that the utility model provides comprises: stator, rotor and axle, and wherein, described rotor is arranged between described stator and described axle; Described axle is passed described internal rotor and is cooperatively interacted by the screw thread of the screw thread on described axle and described rotor, thus converts the rotary motion of described rotor the motion of described axle to; Described stator is formed by injection moulding by the pole piece group comprising different types of pole piece.
Alternatively, described stepper drive motors also comprises coil, and described coil winding is on described stator.
Alternatively, described pole piece group comprises first pole piece, two the second pole pieces and the 3rd pole piece, the ring bodies of described first pole piece, the second pole piece and the 3rd pole piece is provided with the through hole of different size, the through hole of the different size on described first pole piece, the second pole piece and the 3rd pole piece coordinates for spacing with the pin of the stepped change of the radius in mould in injection moulding process thus located in a mold by each pole piece.Preferably, described first pole piece, the second pole piece and the 3rd pole piece also comprise the pole pawl from the inward flange of the ring bodies of each pole piece along the Axis Extension of each pole piece, after stator injection moulding completes, the pole pawl of each pole piece is spaced from each other within a predetermined distance thus the field shunting on each pole piece is become multi-stage magnetic field so that the magnetic field interaction produced with described rotor thus produce moment of torsion.Preferably, described first pole piece, the second pole piece and/or described 3rd pole piece are provided with Anti-error structure, to prevent described first pole piece, the second pole piece and/or described 3rd pole piece location of mistake in a mold.Preferably, described Anti-error structure is the linearity cutting part formed on the outward flange of described first pole piece, the second pole piece and/or described 3rd pole piece.
Alternatively, described pole piece group comprises two the first pole pieces and two the second pole pieces, the outward flange of the ring bodies of the first pole piece and the second pole piece is respectively arranged with notch, described first pole piece and the second pole piece also comprise the pole pawl from the inward flange of the ring bodies of each pole piece along the Axis Extension of each pole piece, when described two the first pole pieces and two the second pole pieces are navigated in mould with one heart, the notch on each pole piece is parallel to the axis of pole piece group straight line along same aligns mutually.Preferably, after stator injection moulding completes, the pole pawl of each pole piece is spaced from each other within a predetermined distance thus the field shunting on each pole piece is become multi-stage magnetic field so that the magnetic field interaction produced with described rotor thus produce moment of torsion.Preferably, described first pole piece and/or described second pole piece are provided with Anti-error structure, to prevent described first pole piece and/or the location of mistake in a mold of described second pole piece.Preferably, described Anti-error structure is the linearity cutting part formed on the outward flange of described first pole piece and/or the second pole piece.
Alternatively, the mating shapes of the shape of the cross section of the end of described stator and the output of described axle, thus prevent described axle from rotating and leading to described axle in the axial direction.Preferably, described stator on the inner surface of the end passed for the output of described axle, there is projection, the outer surface of the output of described axle has groove structure, described projection can be engaged in described groove structure thus to prevent described axle from rotating.
Alternatively, described stator has shoulder, described shoulder described stator for for described axle output through end and the main part that form of the pole piece group of described stator, described shoulder has outer circular contours and positions described stator in the process of manufacture stepper drive motors.
Alternatively, described stepper drive motors also comprises bearing, described bearing arrangement in the end of the output away from described axle of described rotor to keep described rotor, the inner ring of described bearing to be fixedly attached on described rotor thus with described rotor turns, and, the inner surface of described stator has bearing mounting hole, and the outer ring of described bearing to be connected in described bearing mounting hole thus to be fixed to described stator.Preferably, described stepper drive motors also comprises bonnet, and described bonnet is connected to described stator by ultrasonic bonding.Preferably, described stepper drive motors also comprises end shield, described end shield is provided with oat tail groove structure, described bonnet is provided with dovetail slotted eye, described oat tail groove structure and described dovetail slotted eye interference fit thus described end shield is mounted to described bonnet.Preferably, described stepper drive motors also comprises lining, described lining is arranged on the end of the described bonnet of vicinity of described rotor, and described lining is fixed to described rotor by ultrasonic bonding, the end face of described lining and described bearing touch thus described bearing is fixed to described rotor.
Alternatively, described stepper drive motors also comprises magnetic guiding loop, and described magnetic guiding loop is set on the periphery of described stator hermetically, thus forms magnetic circuit.Preferably, described stepper drive motors also comprises shell, and described shell is formed in the most external of described stepper drive motors to encapsulate described stepper drive motors by injection moulding.Preferably, described stepper drive motors also comprises O type circle, and it is outside and against on the housing that described O type circle is arranged on described magnetic guiding loop.
Alternatively, described stepper drive motors also comprises the connector of the output being connected to described axle, and described connector is used for being connected with user side.
Compared with prior art, stepper drive motors of the present utility model at least has the following advantages: in stepper drive motors of the present utility model, stator is formed by injection moulding by pole piece group, thus decrease the number of parts of stator and simplify assembling process, and different types of pole piece is designed with and is beneficial to the location of pole piece in injection mold.
Accompanying drawing explanation
Figure 1A shows the decomposition view of the stepper drive motors according to an embodiment of the present utility model;
Figure 1B shows the stereogram of the stepper drive motors after according to the assembling of an embodiment of the present utility model;
Fig. 1 C shows the profile of the stepper drive motors after according to the assembling of an embodiment of the present utility model;
Fig. 2 A shows the stereogram of the stator of the stepper drive motors according to an embodiment of the present utility model;
Fig. 2 B shows the profile of the stator of the stepper drive motors according to an embodiment of the present utility model;
Fig. 3 shows the stereogram of the pole piece group of the stator of the formation stepper drive motors according to an embodiment of the present utility model;
Different types of pole piece that the pole piece group that Fig. 3 a-3c shows Fig. 3 comprises;
Fig. 4 shows the stereogram of the pole piece group of the stator of the formation stepper drive motors according to another embodiment of the present utility model;
Different types of pole piece that the pole piece group that Fig. 4 a-4b shows Fig. 4 comprises.
Embodiment
Stepper drive motors according to embodiment of the present utility model is described with reference to the accompanying drawings.In the following description, many details have been set forth to make person of ordinary skill in the field more fully understand the utility model.But be apparent that for the technical staff in art, realization of the present utility model can not have some in these details.In addition, should be understood that, the utility model is not limited to introduced specific embodiment.On the contrary, can consider to implement the utility model by the combination in any of characteristic sum key element below, and no matter whether they relate to different embodiments.Therefore, aspect below, feature, embodiment and advantage use for illustrative purposes only and should not be counted as key element or the restriction of claim, unless clearly proposed in the claims.
Figure 1A-1C illustrates the stepper drive motors according to an embodiment of the present utility model, and Fig. 2 A-2B illustrates the stator of the stepper drive motors according to an embodiment of the present utility model.As shown in Figure 1A-1C and Fig. 2 A-2B, this stepper drive motors comprises: stator 1, rotor 2 and axle 3.Rotor 2 is arranged between stator 1 and axle 3, and axle 3 is passed rotor 2 inside and cooperatively interacted by the internal thread of the external screw thread on axle 3 and rotor 2, thus converts the rotary motion of rotor 2 motion of axle 3 to, such as rectilinear motion.Stator 1 is formed by injection moulding by the pole piece group comprising variety classes pole piece.In stepper drive motors of the present utility model, stator is formed by injection moulding by pole piece group, thus decreases the number of parts of stator and simplify assembling process, and different types of pole piece is designed with and is beneficial to the location of pole piece in injection mold.
Continue as shown in figs. ia-1 c, stepper drive motors can also comprise coil 4, bearing 5, shell 6, bonnet 7, lining 8, magnetic guiding loop 9, O type circle 10, connector 11 and end shield 12.
Axle 3 can be Metallic rod.Coil 4 can comprise two copper coils, and coil 4 is wound around on the stator 1 and for generation of magnetic field.
Rotor 2 can be such as permanent magnet rotary, rotor 2 can with stator field generation effect, stator 1 produces magnetic field under the effect of input signal, and rotor 2 rotates under the effect in this magnetic field.The magnet of rotor 2 is located at the inside of stator 1 substantially, and rotor 2 is by means of bearing 5 thus be arranged in stator.Bearing 5 is arranged in the end of the output away from axle 3 of rotor 2 to keep rotor 2, and the inner ring of bearing 5 to be fixedly attached on rotor 2 thus to rotate with rotor 2.Alternatively, bearing 5 can be fixed to rotor 2 by means of lining 8 by ultrasonic bonding.Special the inner surface of stator 1 has bearing mounting hole 1a as shown in Figure 2 B, and the outer ring of bearing 5 to be connected in bearing mounting hole 1a thus to be fixed to stator 1.In addition, especially as shown in Figure 2 A, stator 1 has shoulder 1c, shoulder 1c stator 1 for for described axle output through end and the main part that form of the pole piece group of stator 1, shoulder 1c has in the process of outer circular contours for manufacture stepper drive motors and positions stator 1.
When two copper coils are powered, rotor is locked in equilbrium position under the action of a magnetic force.When the sense of current of a certain copper coil changes, stator field can rotate such as 15 degree, and rotor is also and then rotation 15 degree under the action of a magnetic force.If changed according to certain rules by the electric current of two copper coils, rotor can the motion (such as forward or reverse) of generation rule with the change of stator field.When each copper coil is powered, magnetic field flows to the pole piece of stator by magnetic guiding loop, and magnetic field is divided into multipole by the pole pawl on pole piece, and multipole magnetic field is back to another pole piece after entering permanent magnet rotary, flows to magnetic guiding loop more afterwards thus forms field circuit.
Stator 1 has the inner chamber for holding rotor 2, the output of axle 3 passes from an end of stator 1 and reaches the outside of stator 1, stator 1 for the shape of cross section of end of passing for the output of axle 3 and the mating shapes of the output of axle 3, thus prevent axle 3 from rotating and in the axial direction axle 3 led.Especially, as shown in Figure 2 A, stator 1 on the inner surface of the end passed for the output of axle 3, there is protruding 1b, the outer surface of the output of axle 3 has groove structure 3a, protruding 1b can be engaged in the groove structure 3a of the output of axle 3 thus to prevent axle 3 from rotating with rotor 2, makes axle 3 can only carry out rectilinear motion vertically.
Shell 6 is formed in the most external of stepper drive motors to encapsulate stepper drive motors by injection moulding.
Bonnet 7 is connected to stator 1 by ultrasonic bonding.Be provided with contact pin in bonnet 7 for being connected to driver, end shield 12 is for protecting the contact pin in bonnet 7.End shield 12 can have oat tail groove structure (not shown), bonnet 7 can be provided with dovetail slotted eye, and end shield 12 can be arranged on bonnet 7 with dovetail slotted eye interference fit by oat tail groove structure.
Lining 8 is arranged on the end of the contiguous bonnet 7 of rotor 2, and the end face of lining 8 contacts with bearing 5 thus bearing 5 is fixed to rotor 2.Lining 8 can be fixed on rotor 2 by the mode of ultrasonic bonding.
Magnetic guiding loop 9 is set on the periphery of stator 1 hermetically, thus forms magnetic circuit.
O type circle 10 is arranged on magnetic guiding loop 9 outside and is resisted against on shell 6.After motor loads customer interface, O type circle 10 is extruded thus plays sealing function.
Connector 11 is connected to the output of axle 3, and connector 11 is for being connected with user side.
Fig. 3 and Fig. 4 illustrates two kinds of pole piece groups of the stator forming stepper drive motors of the present utility model respectively.Pole piece group shown in Fig. 3 comprises the different pole piece of kind of the structure of three shown in Fig. 3 a-3c 31,32 and 33.Particularly, the pole piece group shown in Fig. 3 comprises a pole piece 31, two pole pieces 32 and a pole piece 33.Pole piece 31, pole piece 32 and pole piece 33 are provided with the through hole of different size, particularly, pole piece 31 is provided with through hole 311, the diameter of the through hole 321 that pole piece 32 is arranged is greater than the diameter of the through hole 311 of pole piece 31, and the diameter of the through hole 331 that pole piece 33 is arranged is greater than the diameter of the through hole 321 of pole piece 32.The through hole 311,321 and 331 of the different size on pole piece 31,32 and 33 coordinates for spacing with the pin 40 of the stepped change of the radius in mould in injection moulding process thus located in a mold by each pole piece.In addition, except through hole 311,321 with 331 diameter different except, pole piece 31, pole piece 32 are also different with the upper plan position approach of pole pawl 312, the 322 each pole piece relative to 332 of pole piece 33, to reach the object by specific rule distributed magnetic field.
Especially, Fig. 3 schematically shows pole piece 31, pole piece 32 and the pole piece 33 on the pin 40 being positioned at the stepped change of radius.In the injection moulding manufacture process of stator, the pin 40 of the stepped change of cross sectional radius can be set first in a mold.Then, a pole piece 31, two pole pieces 32 and a pole piece 33 are inserted on pin 40 in order, thus pole piece 31, pole piece 32 and pole piece 33 are located in a mold.Then, pin 40 is removed.Finally, in mould, plastics are sprayed to carry out injection moulding.
Continue as shown in Figure 3, pole piece 31,32 and 33 to be provided with Anti-error structure 313,323 and 333 to limit the rotary freedom of pole piece 31,32 and 33, to prevent pole piece 31,32 and 33 location of mistake in a mold.Particularly, this Anti-error structure 313,323 and 333 is the linearity cutting part formed on the outward flange of pole piece 31,32 and 33.It should be appreciated by those skilled in the art that also can only in pole piece 31,32 and 33 any one or appoint on both Anti-error structure be set, these modification do not exceed protection range of the present utility model.
Pole piece group shown in Fig. 4 comprises the different pole piece of kind of the structure of two shown in Fig. 4 a-4b 41 and 42.Particularly, pole piece group bag two pole pieces 41 shown in Fig. 4 and two pole pieces 42.The outward flange of pole piece 41 and 42 is respectively arranged with notch 411 and 421, notch 411 on pole piece 41 is different relative to the position of the pole pawl 422 of pole piece 42 from the notch 421 on pole piece 42 relative to the position of the pole pawl 412 of pole piece 41, thus make when two pole pieces 41 and two pole pieces 42 are navigated in mould with one heart, the straight line that the notch 411,421 on each pole piece is parallel to the axis of pole piece group along same aligns mutually.In stator injection moulding process, pole piece 41 and pole piece 42 can be located in a mold successively by means of multilayer slide block structure.
As can be seen from Fig. 4 a-4b, the outward flange of the circumference of pole piece 41 is provided with the notch 411 that 2 one-tenth 180 ° are symmetrical, the outward flange of the circumference of pole piece 42 is provided with the notch 421 that 2 one-tenth 180 ° are symmetrical.In addition, axis pole piece 41 and 42 is respectively arranged with around each pole piece is uniformly distributed 6 pole pawls 412 and 6 pole pawls 422.As shown in Figs. 4a and 4b, 6 pole pawls 412 of pole piece 41 relative to the position of notch 411 and 6 pole pawls 422 of pole piece 42 relative to notch 421 position compared with have rotated certain angle.It should be appreciated by those skilled in the art that can according to actual needs for pole piece arranges 3 to 9 pole pawls, and these modification do not exceed protection range of the present utility model.
The magnetic field interaction that the pole pawl of each pole piece produces for the field shunting on pole piece is become multi-stage magnetic field so that with permanent magnet rotary thus produce moment of torsion.Go up in place by the pole pawl of pole piece 41 and pole piece 42 is arranged, can to realize and the permanent magnet rotary straight line that the function that produces moment of torsion makes the notch 411,421 on each pole piece be parallel to the axis of pole piece group along same simultaneously that interacts aligns mutually.The manufacture of injection mold can be made more simple along the mutual alignment notch of same straight line and be convenient to winding around on stator.
Continue as shown in Figure 4, pole piece 41 and pole piece 42 to be provided with Anti-error structure 413 and 423 to limit the rotary freedom of pole piece 41 and 42, to prevent pole piece 41 and pole piece 42 location of mistake in a mold.Particularly, this Anti-error structure 413 and 423 is the linearity cutting part formed on the outward flange of pole piece 41 and pole piece 42.It should be appreciated by those skilled in the art that and the one only in pole piece 41 and pole piece 42 can arrange Anti-error structure yet, and another one in pole piece 41 and pole piece 42 does not arrange Anti-error structure, these modification do not exceed protection range of the present utility model.
Stepper drive motors of the present utility model can be applied to multiple environment, and such as, stepper drive motors of the present utility model may be used for the air mass flow of the air throttle controlling vehicle.
Although the utility model discloses as above with preferred embodiment, the utility model is not defined in this.Any those skilled in the art, not departing from the various change and amendment done in spirit and scope of the present utility model, all should include in protection range of the present utility model, therefore protection range of the present utility model should be as the criterion with claim limited range.
Claims (21)
1. a stepper drive motors, is characterized in that, described stepper drive motors comprises stator, rotor and axle, wherein,
Described rotor is arranged between described stator and described axle;
Described axle is passed described internal rotor and is cooperatively interacted by the screw thread of the screw thread on described axle and described rotor, thus converts the rotary motion of described rotor the motion of described axle to;
Described stator is formed by injection moulding by pole piece group, and described pole piece group comprises different types of pole piece.
2. stepper drive motors according to claim 1, is characterized in that, described stepper drive motors also comprises coil, and described coil winding is on described stator.
3. stepper drive motors according to claim 1, it is characterized in that, described pole piece group comprises first pole piece, two the second pole pieces and the 3rd pole piece, the ring bodies of described first pole piece, the second pole piece and the 3rd pole piece is provided with the through hole of different size, the through hole of the different size on described first pole piece, the second pole piece and the 3rd pole piece coordinates for spacing with the pin of the stepped change of the radius in mould in injection moulding process thus located in a mold by each pole piece.
4. stepper drive motors according to claim 3, it is characterized in that, described first pole piece, the second pole piece and the 3rd pole piece also comprise the pole pawl from the inward flange of the ring bodies of each pole piece along the Axis Extension of each pole piece, after stator injection moulding completes, the pole pawl of each pole piece is spaced from each other within a predetermined distance thus the field shunting on each pole piece is become multi-stage magnetic field so that the magnetic field interaction produced with described rotor thus produce moment of torsion.
5. stepper drive motors according to claim 3, it is characterized in that, described first pole piece, the second pole piece and/or described 3rd pole piece are provided with Anti-error structure, to prevent described first pole piece, the second pole piece and/or described 3rd pole piece location of mistake in a mold.
6. stepper drive motors according to claim 5, is characterized in that, described Anti-error structure is the linearity cutting part formed on the outward flange of described first pole piece, the second pole piece and/or described 3rd pole piece.
7. stepper drive motors according to claim 1, it is characterized in that, described pole piece group comprises two the first pole pieces and two the second pole pieces, the outward flange of the ring bodies of the first pole piece and the second pole piece is respectively arranged with notch, described first pole piece and the second pole piece also comprise the pole pawl from the inward flange of the ring bodies of each pole piece along the Axis Extension of each pole piece, when described two the first pole pieces and two the second pole pieces are navigated in mould with one heart, the notch on each pole piece is parallel to the axis of pole piece group straight line along same aligns mutually.
8. stepper drive motors according to claim 7, it is characterized in that, after stator injection moulding completes, the pole pawl of each pole piece is spaced from each other within a predetermined distance thus the field shunting on each pole piece is become multi-stage magnetic field so that the magnetic field interaction produced with described rotor thus produce moment of torsion.
9. stepper drive motors according to claim 7, is characterized in that, described first pole piece and/or described second pole piece are provided with Anti-error structure, to prevent described first pole piece and/or the location of mistake in a mold of described second pole piece.
10. stepper drive motors according to claim 9, is characterized in that, described Anti-error structure is the linearity cutting part formed on the outward flange of described first pole piece and/or the second pole piece.
11. stepper drive motors according to claim 1, is characterized in that, the mating shapes of the shape of the cross section of the end of described stator and the output of described axle, thus prevent described axle from rotating and leading to described axle in the axial direction.
12. stepper drive motors according to claim 11, it is characterized in that, described stator on the inner surface of the end passed for the output of described axle, there is projection, the outer surface of the output of described axle has groove structure, described projection can be engaged in described groove structure thus to prevent described axle from rotating.
13. stepper drive motors according to claim 1, described stator has shoulder, described shoulder described stator for for described axle output through end and the main part that form of the pole piece group of described stator, described shoulder has outer circular contours and positions described stator in the process of manufacture stepper drive motors.
14. stepper drive motors according to claim 1, it is characterized in that, described stepper drive motors also comprises bearing, described bearing arrangement in the end of the output away from described axle of described rotor to keep described rotor, the inner ring of described bearing to be fixedly attached on described rotor thus with described rotor turns, further, the inner surface of described stator has bearing mounting hole, the outer ring of described bearing to be connected in described bearing mounting hole thus to be fixed to described stator.
15. stepper drive motors according to claim 14, it is characterized in that, described stepper drive motors also comprises bonnet, described bonnet is connected to described stator by ultrasonic bonding.
16. stepper drive motors according to claim 15, it is characterized in that, described stepper drive motors also comprises end shield, described end shield is provided with oat tail groove structure, described bonnet is provided with dovetail slotted eye, described oat tail groove structure and described dovetail slotted eye interference fit thus described end shield is mounted to described bonnet.
17. stepper drive motors according to claim 15, it is characterized in that, described stepper drive motors also comprises lining, described lining is arranged on the end of the described bonnet of vicinity of described rotor, described lining is fixed to described rotor by ultrasonic bonding, the end face of described lining and described bearing touch thus described bearing is fixed to described rotor.
18. stepper drive motors according to claim 1, is characterized in that, described stepper drive motors also comprises magnetic guiding loop, and the periphery that described magnetic guiding loop is set in described stator hermetically forms magnetic circuit.
19. stepper drive motors according to claim 18, is characterized in that, described stepper drive motors also comprises shell, and described shell is formed in the most external of described stepper drive motors to encapsulate described stepper drive motors by injection moulding.
20. stepper drive motors according to claim 19, is characterized in that, described stepper drive motors also comprises O type circle, and it is outside and against on the housing that described O type circle is arranged on described magnetic guiding loop.
21. stepper drive motors according to claim 1, is characterized in that, described stepper drive motors also comprises the connector of the output being connected to described axle, and described connector is used for being connected with user side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734141.6U CN204906161U (en) | 2015-09-22 | 2015-09-22 | Step drive motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520734141.6U CN204906161U (en) | 2015-09-22 | 2015-09-22 | Step drive motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204906161U true CN204906161U (en) | 2015-12-23 |
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ID=54928306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520734141.6U Active CN204906161U (en) | 2015-09-22 | 2015-09-22 | Step drive motor |
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| Country | Link |
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| CN (1) | CN204906161U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631476A (en) * | 2017-03-20 | 2018-10-09 | 大陆汽车电子(芜湖)有限公司 | Stepper motor |
| CN111969803A (en) * | 2020-08-27 | 2020-11-20 | 海顿直线电机(常州)有限公司 | Permanent magnet stepping motor with diameter of 15mm and step angle of 18 degrees and assembly process |
-
2015
- 2015-09-22 CN CN201520734141.6U patent/CN204906161U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631476A (en) * | 2017-03-20 | 2018-10-09 | 大陆汽车电子(芜湖)有限公司 | Stepper motor |
| CN108631476B (en) * | 2017-03-20 | 2024-06-07 | 纬湃汽车电子(芜湖)有限公司 | Stepping motor |
| CN111969803A (en) * | 2020-08-27 | 2020-11-20 | 海顿直线电机(常州)有限公司 | Permanent magnet stepping motor with diameter of 15mm and step angle of 18 degrees and assembly process |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 27 North Road Patentee after: WeiPai automotive electronics (Wuhu) Co., Ltd Address before: 241009 Anhui city of Wuhu Province Silver Lake Economic and Technological Development Zone No. 27 North Road Patentee before: Continental automotive electronics (Wuhu) Co., Ltd |
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| CP01 | Change in the name or title of a patent holder |