WO2007088919A1 - 電動パワーステアリング装置 - Google Patents
電動パワーステアリング装置 Download PDFInfo
- Publication number
- WO2007088919A1 WO2007088919A1 PCT/JP2007/051671 JP2007051671W WO2007088919A1 WO 2007088919 A1 WO2007088919 A1 WO 2007088919A1 JP 2007051671 W JP2007051671 W JP 2007051671W WO 2007088919 A1 WO2007088919 A1 WO 2007088919A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- stator core
- electric power
- stator
- rotor
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0403—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by constructional features, e.g. common housing for motor and gear box
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0421—Electric motor acting on or near steering gear
- B62D5/0424—Electric motor acting on or near steering gear the axes of motor and final driven element of steering gear, e.g. rack, being parallel
- B62D5/0427—Electric motor acting on or near steering gear the axes of motor and final driven element of steering gear, e.g. rack, being parallel the axes being coaxial
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
- H02K1/148—Sectional cores
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/03—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems
-
- 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 invention relates to an electric power steering apparatus using an electric motor as a drive source.
- the present invention relates to a rack assist type electric power steering device in which a rack shaft of a vehicle is passed through a motor central portion.
- EPS electric power steering device
- EPS in Patent Document 1 is a rack assist type device.
- Rack-assisted EPS is given steering assist force by a motor coaxially provided on the rack shaft.
- FIG. 6 is a cross-sectional view showing a configuration of a rack assist type EPS as disclosed in Patent Document 1.
- EPS 51 of FIG. 6 a motor 53 is provided coaxially with the rack shaft 52.
- the steering assist force generated by the motor 53 is transmitted to the rack shaft 52 via the ball screw mechanism 54.
- Steering wheels are connected to both ends of the rack shaft 52 via tie rods, knuckle arms and the like (not shown).
- the rack shaft 52 is coupled to the steering shaft 55 and the rack 'and' pinion, and operates in the axial direction (left and right in the figure) by the steering operation of the driver.
- the motor 53 has a configuration in which a magnet 57, a cylindrical rotor shaft 58, and a rotor core 59 are coaxially inserted into a cylindrical yoke 56.
- a rack shaft 52 is passed through the rotor shaft 58.
- EPS51 when the steering shaft 55 is rotated by operating the handle, The rack shaft 52 moves in the closed direction and the steering operation is performed. By this operation, a steering torque sensor (not shown) is actuated, and electric power is appropriately supplied to the motor 53 based on the detected torque.
- the motor 53 When the motor 53 is activated, the rotation is transmitted to the rack shaft 52 via the ball screw mechanism 54. That is, the ball screw mechanism 54 converts the movement of the motor 53 into the axial direction of the rotary shaft 52 and applies a steering assist force to the rack shaft 52.
- the steering wheel is steered by this steering assist force and manual steering force, reducing the driver's handle operation burden.
- Patent Document 1 Japanese Patent Laid-Open No. 10-152058
- Patent Document 2 JP 2000-78780 A
- Patent Document 3 JP 2001-218439 A
- Patent Document 4 Japanese Patent Laid-Open No. 2003-158856
- rack-assisted EPS as shown in Fig. 6 tends to interfere with the engine layout, so that there are many cases where severe restrictions are imposed on its physique (especially its external dimensions).
- EPS for small passenger cars generally has poor merchandise if the outer diameter exceeds 100 mm.
- rack-assisted EPS motors must be configured with an outer diameter of 100 mm or less, and optimal specifications that satisfy the required performance must be established.
- the rack shaft that penetrates the inside of the motor itself has an outer diameter of about 20 to 30 mm. Therefore, the inner diameter of the rotor shaft through which the rack shaft passes is also required to be about 20 to 40 mm.
- EPS motors are required to have low friction (rotational resistance when no power is supplied), low torque ripple, and low cost.
- FIG. 7 is an explanatory diagram showing the relationship between the stator core shape and the motor torque. As shown in Fig. 7, if the stator core is small, the phenomenon of torque sagging (decrease in torque increase rate) occurs at high loads such as stationary due to the effect of magnetic flux saturation in the stator core. Therefore, if a design with sufficient dimensional allowance is required to secure torque, the product will become uncompetitive due to its large size or small space. For this reason, EPS motors have been a major problem in reducing the size and performance of EPS, which makes it difficult to achieve both torque and size reduction.
- An object of the present invention is to optimally reduce the size of an electric power steering apparatus that achieves both torque securing and downsizing of an EPS motor and does not impair performance and assemblability.
- An electric power steering apparatus is an electric power steering apparatus including a rotor having a permanent magnet and a stator disposed on an outer peripheral side of the rotor, wherein the stator has a ring shape. And a stator core provided with a tooth portion projecting inwardly from the yoke portion.
- the stator core has a ratio of magnetoresistance values of the yoke portion and the tooth portion of 1: It is formed to be 1.4 to 1.8.
- the stator core of the EPS motor is the top in the limited space by setting the ratio of the magnetoresistive value of the yoke portion and the teeth portion of the stator core to 1: 1.4 to 1.8. It can be set to be less likely to cause ruggedness (decrease in torque increase rate). As a result, it is possible to construct a small and high-performance EPS motor with excellent layout characteristics and high force linearity, and it is possible to reduce the size and performance of EPS.
- the stator core is set to an optimal shape and wasteful parts can be eliminated, reducing the cost and weight of EPS motors. The product quality of EPS will be improved.
- the ratio of the magnetoresistive value between the yoke and teeth can be designed in a predetermined form, reducing the EPS design man-hours.
- Another electric power steering apparatus of the present invention is an electric power steering apparatus including a rotor having a permanent magnet and a stator disposed on an outer peripheral side of the aperture, wherein the stator Has a stator core having a ring-shaped yoke portion and a tooth portion protruding inwardly from the yoke portion, and the stator core has a radial width Wy of the yoke portion and the teeth. Width dimension Wt in the circumferential direction of the portion Wy: Wt is formed in a range of 1: 1.4 to 1.8.
- the ratio of Wy and Wt is set to l: 1.4 to 1.8, and the stator core of the EPS motor is set so that torque sag is hardly generated in a limited space. It can be.
- the stator core is set to the optimum shape and wasteful parts can be eliminated, the cost and weight of the EPS motor can be reduced, and the product quality of EPS is improved.
- the Wy and Wt ratios can be designed in a predetermined manner, so the EPS man-hours can be reduced.
- the motor is coaxially disposed around a rack shaft coupled to a steering wheel, and a steering assist force is supplied to the rack shaft by the motor. Also good.
- the stator in the electric power steering device including the rotor provided with the permanent magnet and the stator disposed on the outer peripheral side of the rotor, the stator has a ring shape. And a stator core having a teeth portion projecting inwardly from the yoke portion, and the ratio of the magnetoresistance values of the stator core yoke portion and the teeth portion is 1: 1.4 to 1.8.
- the EPS motor which has strict requirements for its physique, the stator core can be set to the least likely to cause torque sag under the severe restrictions. Therefore, according to the present invention, the layout is excellent and the torque linearity is high. EPS that uses small high-performance motors can be provided, making it possible to improve the size and performance of EPS.
- stator core can be set to an optimum shape, useless portions of the stator core can be eliminated, and the cost and weight of the EPS motor can be reduced. For this reason, it is possible to reduce the cost and weight of EPS, and to improve the merchandise of EPS.
- the ratio of the magnetoresistive value between the yoke and teeth can be determined in advance, so that the best motor design guidelines can be obtained for EPS High-power and low-cost EPS motors can be configured more easily than before, and the design effort for EPS can be reduced. Accordingly, the product development cost is reduced accordingly, and the product cost can be reduced.
- an electric power steering apparatus including a rotor having a permanent magnet and a stator disposed on the outer peripheral side of the rotor, A stator core having a toothed portion that protrudes inward from the yoke portion, and a radial width Wy of the stator core yoke portion and a circumferential width Wt of the tooth portion Wt
- the ratio Wy: Wt was set to 1: 1.4 to 1.8, so the EPS core, which has strict requirements on the physique, can be set to make the stator core less susceptible to torque sagging, despite the severe restrictions. Therefore, according to the present invention, it is possible to provide EPS using a small high-performance motor that has excellent layout characteristics, high force linearity, and high torque linearity. Become.
- stator core can be set to an optimal shape, useless portions of the stator core can be eliminated, and the cost and weight of the EPS motor can be reduced. For this reason, it is possible to reduce the cost and weight of EPS, and to improve the merchandise of EPS.
- the ratio of the magnetoresistive value between the yoke and teeth can be determined in advance, so that the best motor design guidelines can be obtained for EPS High-power and low-cost EPS motors can be configured more easily than before, and the design effort for EPS can be reduced. Accordingly, the product development cost is reduced accordingly, and the product cost can be reduced.
- FIG. 1 is a cross-sectional view showing a configuration of an electric power steering apparatus according to an embodiment of the present invention.
- FIG. 2 is an enlarged cross-sectional view showing a configuration of a motor used in the electric power steering device of FIG.
- FIG. 3 is an explanatory diagram showing a configuration of a stator core in the motor of FIG. 2.
- FIG. 3 is an explanatory diagram showing a configuration of a stator core in the motor of FIG. 2.
- FIG. 4 is an explanatory diagram showing the flow of magnetic flux in the stator core.
- FIG. 5 is an explanatory diagram showing the relationship between effective magnetic flux and torque when the tooth width is changed.
- FIG. 6 is a cross-sectional view showing a configuration of a rack assist type EPS.
- FIG. 7 is an explanatory diagram showing the relationship between the stator core shape and the motor torque.
- FIG. 2 is an enlarged cross-sectional view showing the structure of an EPS motor used in the electric power steering apparatus shown in FIG. 1.
- the electric power steering device (EPS) 10 in FIG. 1 has a rack assist type configuration similar to that in FIG. 6, and uses the motor 1 as a power source.
- EPS10 a brushless motor is used as the motor 1 to reduce the size and performance of EPS.
- the rack shaft 2 passes through coaxially with the motor 1.
- the rotation of the motor 1 is transmitted to the rack shaft 2 via the ball screw mechanism 3 and becomes a steering assist force.
- Steering wheels are connected to both ends of the rack shaft 2 via tie rods, knuckle arms or the like (not shown).
- the rack shaft 2 is also coupled to the steering shaft 4 and a rack 'and' pinion, and operates in the axial direction (left and right in the figure) by the driver's turning operation.
- EPS10 similarly to EPS51 in FIG. 6, when the steering shaft is rotated by operating the handle, the rack shaft 2 is moved in a direction corresponding to the rotation.
- a steering torque sensor (not shown) is activated by the operation of the steering shaft 4, electric power is appropriately supplied to the motor 1 based on this detected torque.
- the motor 1 When the motor 1 is operated, the rotation is transmitted to the rack shaft 2 through the ball screw mechanism 3.
- the rotational force of the motor 1 is converted into the axial movement of the rack shaft 2, and a steering assist force is applied to the rack shaft 2.
- the steering wheel is steered by the steering assist force and the manual steering force.
- the motor 1 is an inner rotor type brushless motor having a stator 11 on the outside and a rotor 21 on the inside.
- the stator 11 has a configuration including a housing 12, a stator core 13 fixed to the inner peripheral side of the housing 12, and a winding 14 mounted on the stator core 13.
- the housing 12 is made of iron or the like, and its outer periphery is limited to 100 mm or less.
- the stator core 13 has a structure in which many steel plates are laminated. A plurality of teeth protrude from the inner periphery of the stator core 13! /
- FIG. 3 is an explanatory diagram showing a configuration of the stator core 13.
- the stator core 13 is formed of a ring-shaped yoke portion 16 and teeth 17 that protrude from the yoke portion 16 in an inward direction.
- motor 1 nine teeth 17 are provided. Between each tooth 17, slots 18 (9 pieces) are formed, and the motor 1 has a 9-slot configuration.
- Each tooth 17 is equipped with a shoreline 14 in a concentrated manner.
- the shoreline 14 is housed in each slot 18 It is.
- the feeder 14 is connected to a notch (not shown) via a power supply wiring 15.
- the rotor 21 is arranged inside the stator 11.
- the rotor 21 has a configuration in which a cylindrical rotor shaft 22, a rotor core 23, a magnet 24, and a magnet cover 25 are coaxially arranged.
- a rack shaft 2 is passed through the rotor shaft 22.
- a cylindrical rotor core 23 is externally mounted on the outer periphery of the rotor shaft 22.
- a magnet 24 having a 6-pole configuration is fixed to the outer periphery of the rotor core 23, and the motor 1 has a 6-pole 9-slot configuration.
- the magnet 24 is made of a rare earth magnet such as a neodymium iron magnet that is small and has a high magnetic flux density.
- a rare earth magnet for the magnet 24, the motor can be miniaturized, the inertia of the rotor 21 can be reduced, and the steering feeling can be improved.
- the magnet 24 has a ring shape, and a plurality of magnetic poles are alternately arranged N and S in the circumferential direction. As the magnet 24, a plurality of segment magnets may be used.
- a magnet cover 25 is externally attached to the outside of the magnet 24. With this magnet canopy 25, even if the magnet 24 is damaged, the motor 1 is not locked by the broken pieces.
- a housing 31 made of aluminum die casting is attached to the right end side of the housing 12 in the drawing.
- the housing 31 accommodates a bearing 32 that supports the right end side of the rotor 21 and a resolver 33 that detects the rotation of the rotor 21.
- the resolver 33 also includes a resolver stator 34 fixed to the housing 31 side and a resolver rotor 35 fixed to the rotor 21 side.
- the resolver stator 34 is equipped with a coil 36, and an excitation coil and a detection coil are provided.
- a resolver rotor 35 fixed to the rotor shaft 22 is disposed inside the resolver stator 34.
- the resolver rotor 35 has a structure in which metal plates are laminated, and has convex portions formed in three directions.
- the resolver rotor 35 When the rotor shaft 22 rotates, the resolver rotor 35 also rotates in the resolver stator 34. A high frequency signal is applied to the exciting coil of the resolver stator 34, and the phase of the signal output from the detection coil changes due to the proximity of the convex portion. The rotational position of the rotor 21 is detected by comparing this detection signal with the reference signal. Then, based on the rotation position of the port 21, the current to the winding 14 is appropriately switched, and the rotor 21 rotates. It is driven by rolling.
- a housing 41 made of aluminum die casting is attached to the left end side of the housing 12 in the drawing.
- the ball screw mechanism 3 is incorporated in the Uzing 41.
- the ball screw mechanism 3 includes a nut portion 42, a screw portion 43 formed on the outer periphery of the rack shaft 2, and a large number of balls 44 interposed between the nut portion 42 and the screw portion 43.
- the rack shaft 2 is rotatably supported by the nut portion 42 while being able to reciprocate in the left-right direction, and moves in the left-right direction as the nut portion 42 rotates.
- the nut portion 42 is fixed to the left end portion of the rotor shaft 22, and is rotatably held by an angular bearing 45 fixed to the housing 41.
- the angular bearing 45 is fixed in a state in which the axial movement is restricted between the bearing fixing rings 46a and 46b screwed into the opening of the housing 41 and the step 47 formed inside the housing 41. ing. Further, the axial movement of the angular bearing 45 is restricted by a bearing fixing ring 48 screwed into the left end of the nut portion 42 and a step portion 49 formed on the outer periphery of the nut portion 42.
- EPS10 when the steering handle is operated and the steering shaft 4 is rotated, the rack shaft 2 is moved in a direction corresponding to the rotation, and a steering operation is performed.
- a steering torque sensor (not shown) is activated, and electric power is supplied from the battery to the feeder 14 via the power supply wiring 15 according to the detected torque.
- the motor 1 When electric power is supplied to the winding 14, the motor 1 operates and the rotor shaft 22 rotates.
- the nut portion 42 coupled thereto rotates, and an axial steering assist force is transmitted to the rack shaft 2 by the action of the ball screw mechanism 3. Thereby, the movement of the rack shaft 2 is promoted and the steering force is assisted.
- the magnetic resistance is yoked
- the magnetic resistance values of the portion 16 and the teeth 17 are proportional to their widths. Therefore, in this embodiment, taking the case where both have the same magnetoresistance value as an example, the dimension ratio of the width of the yoke portion 16 and the tooth 17 will be described below instead of the magnetoresistance ratio.
- FIG. 4 is an explanatory view showing the flow of such a magnetic flux, and shows a part of the stator core 13 in an enlarged manner.
- the magnetic flux that has entered the teeth 17 stops at the yoke portion 16, diverges left and right, and flows into the yoke portion 16. If this magnetic flux flow is obstructed, the output of the motor 1 naturally decreases. That is, when magnetic flux saturation occurs in both the teeth 17 and the yoke portion 16, torque sagging occurs at high load as shown in FIG. For this reason, in order to secure the maximum output torque, it is necessary to prevent magnetic saturation from occurring in both the yoke portion 16 and the teeth 17. Therefore, it is necessary to design the width Wy of the yoke part 16 and the width Wt of the teeth 17 to optimum values in a limited space (outer diameter) that ensures the minimum width necessary for passing the magnetic flux without waste. There is.
- FIG. 5 is an explanatory diagram showing the relationship between the effective magnetic flux and the torque, and shows the difference in motor torque when Wy is 10 mm and Wt is appropriately changed under the conditions.
- the effective magnetic flux referred to here is an effective magnetic flux for generating motor torque.
- the stator core 13 can be set to have the least torque sag in the limited space. Therefore, according to the present invention, it is possible to provide EPS using a small high-performance motor that has excellent layout characteristics and high torque linearity. Further, in the EPS according to the present invention, the stator core 13 of the motor 1 is set to an optimum shape, and wasteful meat can be dropped (a wasteful portion is eliminated), so that the cost and weight of the motor 1 can be reduced. Therefore, the cost and weight of EPS10 can be reduced, making it possible to improve the product quality of EPS and ultimately contributing to fuel saving.
- the shape of the stator core is one of the items that should be paid most attention because it has a great influence on the motor performance.
- the motor 1 can be designed with the ratio of Wy and Wt determined to some extent in advance, the specifications of each part of the motor may be determined in accordance with the above ratio when designing the structure.
- an optimal motor design guideline for EPS can be obtained, and a small, high-output and low-cost EPS motor can be easily configured as compared with the conventional one. This makes it possible to optimally design EPS motors and reduce design man-hours related to EPS motors. This reduces product development costs and reduces EPS product costs.
- the present invention can be applied to a force column assist type EPS in which the present invention is applied to a rack assist type EPS.
- the optimum design is basically possible by setting the ratio of the magnetoresistance of the yoke part 16 and the tooth 17 to the above value. Therefore, when the yoke portion 16 and the teeth 17 of the stator core 13 have a magnetic resistance value, the width dimension is set so that the magnetoresistance ratio becomes the above value according to the magnetic resistance value of each portion.
- the yoke portion 16 and the teeth 17 There are cases where the magnetic resistance value is different.
- a silicon steel sheet has a large amount of silicon and a large magnetic resistance value, and a grain-oriented electrical steel sheet has a small magnetic resistance value in the rolling direction. Therefore, in such a case, the width dimension is determined in consideration of the magnetic resistance value of each part.
- non-oriented electrical steel sheets are generally used for the motor stator core. In this case, the magnetoresistance values of the yoke portion 16 and the teeth 17 are equal as in the above example. Therefore, the ratio of both widths should be set to the above value.
- the configuration of the number of power poles and the number of slots in which the motor 1 has a 6-pole 9-slot configuration is not limited to this.
- By setting the magnetic resistance value of the teeth 17 to the above value it is possible to perform an optimal design that suppresses torque sagging.
- the present invention can be applied not only to a motor having a power supply voltage of 12V, but also to a EPS using a motor of 42V.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
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Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007556904A JPWO2007088919A1 (ja) | 2006-02-02 | 2007-02-01 | 電動パワーステアリング装置 |
DE112007000289T DE112007000289T5 (de) | 2006-02-02 | 2007-02-01 | Elektrische Servolenkungsvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-025402 | 2006-02-02 | ||
JP2006025402 | 2006-02-02 |
Publications (1)
Publication Number | Publication Date |
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WO2007088919A1 true WO2007088919A1 (ja) | 2007-08-09 |
Family
ID=38327490
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/051671 WO2007088919A1 (ja) | 2006-02-02 | 2007-02-01 | 電動パワーステアリング装置 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPWO2007088919A1 (ja) |
CN (1) | CN101379674A (ja) |
DE (1) | DE112007000289T5 (ja) |
WO (1) | WO2007088919A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120038237A1 (en) * | 2010-08-10 | 2012-02-16 | Yue Li | Brushless motor |
JP2016052199A (ja) * | 2014-09-01 | 2016-04-11 | 株式会社ミツバ | ブラシレスモータ |
JP2021511154A (ja) * | 2018-03-07 | 2021-05-06 | 広東美的生活電器制造有限公司Guangdong Midea Consumer Electrics Manufacturing Co., Ltd. | 食品調理機及び食品調理機用のモータ |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102012215232A1 (de) * | 2012-08-28 | 2014-03-06 | Robert Bosch Gmbh | Stator in einem Elektromotor |
DE102013212407A1 (de) * | 2013-06-27 | 2014-12-31 | Robert Bosch Gmbh | Elektrische Maschine |
CN106972653A (zh) * | 2016-01-14 | 2017-07-21 | 德昌电机(深圳)有限公司 | 电机及其外磁芯、内磁芯 |
CN108988519A (zh) * | 2017-06-02 | 2018-12-11 | 福建飞森动力有限公司 | 一种四极永磁发电机定子铁芯 |
CN109256874A (zh) * | 2017-07-13 | 2019-01-22 | 杭州三花研究院有限公司 | 步进电机及具有该步进电机的阀装置 |
CN110247484A (zh) * | 2018-03-07 | 2019-09-17 | 广东美的生活电器制造有限公司 | 食品料理机和用于食品料理机的定子铁芯、电机 |
CN110236426A (zh) * | 2018-03-07 | 2019-09-17 | 广东美的生活电器制造有限公司 | 食品料理机和用于食品料理机的机座 |
CN109334762B (zh) * | 2018-11-12 | 2022-02-01 | 江苏罗思韦尔电气有限公司 | 一种线性转向的方法 |
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JP3543610B2 (ja) * | 1998-03-16 | 2004-07-14 | 三菱電機株式会社 | 2相リラクタンスモータ |
JP2000078780A (ja) | 1998-09-01 | 2000-03-14 | Toyota Motor Corp | 電気モータ |
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JP4210811B2 (ja) * | 1999-07-29 | 2009-01-21 | 株式会社富士通ゼネラル | 永久磁石電動機 |
JP2001119907A (ja) * | 1999-10-20 | 2001-04-27 | Asmo Co Ltd | リラクタンス型電動機 |
JP4366823B2 (ja) | 1999-11-18 | 2009-11-18 | 日本精工株式会社 | パワーステアリング用ブラシレスモータの制御装置 |
JP2002354766A (ja) * | 2001-05-28 | 2002-12-06 | Aichi Emerson Electric Co Ltd | 永久磁石電動機 |
JP2003032985A (ja) * | 2001-07-12 | 2003-01-31 | Aichi Emerson Electric Co Ltd | 永久磁石型電動機の固定子 |
JP3690339B2 (ja) | 2001-11-16 | 2005-08-31 | 豊田工機株式会社 | 回転変位検出装置の組付け構造 |
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2007
- 2007-02-01 JP JP2007556904A patent/JPWO2007088919A1/ja active Pending
- 2007-02-01 WO PCT/JP2007/051671 patent/WO2007088919A1/ja active Application Filing
- 2007-02-01 CN CN 200780004303 patent/CN101379674A/zh active Pending
- 2007-02-01 DE DE112007000289T patent/DE112007000289T5/de not_active Withdrawn
Patent Citations (4)
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JPH09149616A (ja) * | 1995-11-22 | 1997-06-06 | Nippon Seiko Kk | ブラシレスモータ |
JPH10152058A (ja) * | 1996-09-24 | 1998-06-09 | Mitsuba Corp | 電気式動力操舵装置 |
JP2001103689A (ja) * | 1999-09-27 | 2001-04-13 | Mitsuba Corp | 回転電機 |
JP2004215479A (ja) * | 2002-03-29 | 2004-07-29 | Matsushita Electric Ind Co Ltd | モータ |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120038237A1 (en) * | 2010-08-10 | 2012-02-16 | Yue Li | Brushless motor |
US9083226B2 (en) * | 2010-08-10 | 2015-07-14 | Johnson Electric S.A. | Brushless motor |
JP2016052199A (ja) * | 2014-09-01 | 2016-04-11 | 株式会社ミツバ | ブラシレスモータ |
JP2021511154A (ja) * | 2018-03-07 | 2021-05-06 | 広東美的生活電器制造有限公司Guangdong Midea Consumer Electrics Manufacturing Co., Ltd. | 食品調理機及び食品調理機用のモータ |
JP7070975B2 (ja) | 2018-03-07 | 2022-05-18 | 広東美的生活電器制造有限公司 | 食品調理機及び食品調理機用のモータ |
US11936259B2 (en) | 2018-03-07 | 2024-03-19 | Guangdong Midea Consumer Electric Manufacturing Co., Ltd. | Food processor and electric motor for food processor |
Also Published As
Publication number | Publication date |
---|---|
JPWO2007088919A1 (ja) | 2009-06-25 |
DE112007000289T5 (de) | 2008-12-11 |
CN101379674A (zh) | 2009-03-04 |
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