CN114729820B - Magnetic generating unit, rotation angle detecting device, and rotating electric machine - Google Patents
Magnetic generating unit, rotation angle detecting device, and rotating electric machine Download PDFInfo
- Publication number
- CN114729820B CN114729820B CN201980101334.9A CN201980101334A CN114729820B CN 114729820 B CN114729820 B CN 114729820B CN 201980101334 A CN201980101334 A CN 201980101334A CN 114729820 B CN114729820 B CN 114729820B
- Authority
- CN
- China
- Prior art keywords
- magnetic
- generating unit
- holder
- pair
- magnetic generating
- 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.)
- Active
Links
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 230000005489 elastic deformation Effects 0.000 claims abstract description 5
- 239000003112 inhibitor Substances 0.000 claims description 5
- 230000005415 magnetization Effects 0.000 claims description 3
- 239000000758 substrate Substances 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/30—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/245—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Abstract
The invention provides a magnetic generating unit capable of maintaining the detection accuracy of a rotation angle. The magnetic generating unit includes: a magnetic generator magnetized; a holder which accommodates the magnetic generator and is inserted into a recess provided at an end of a rotary shaft of the rotary electric machine; and an elastic body provided to the holder, the elastic body maintaining a state in which the holder is inserted into the recess of the rotating shaft by a restoring force of elastic deformation generated by contact with an inner peripheral portion of the recess in the rotating shaft.
Description
Technical Field
The invention relates to a magnetic generating unit, a rotation angle detecting device and a rotating electric machine.
Background
Patent document 1 discloses a magnetic generating unit. The magnetic generating unit has excellent durability to a temperature fluctuation environment.
Prior art literature
Patent literature
Patent document 1: japanese patent laid-open publication 2016-153765
Disclosure of Invention
Problems to be solved by the invention
However, the magnetic generating unit described in patent document 1 is fixed to the rotating shaft by an adhesive. Therefore, if the position of the magnetic generating means is shifted before the adhesive is fixed, the accuracy of detecting the rotation angle cannot be maintained.
The present invention has been made to solve the above problems. The invention aims to provide a magnetic generating unit, a rotation angle detecting device and a rotating motor, wherein the detection accuracy of a rotation angle can be maintained.
Means for solving the problems
The magnetic generating unit of the present invention comprises: a magnetic generator magnetized; a holder that accommodates the magnetic generator and is inserted into a recess provided at an end of a rotary shaft of the rotary electric machine; and an elastic body provided to the holder, the elastic body maintaining a state in which the holder is inserted into the recess of the rotating shaft by a restoring force of elastic deformation generated by contact with an inner peripheral portion of the recess in the rotating shaft.
The rotation angle detection device of the present invention includes the magnetic generation means and a magnetic sensor facing the magnetic generation body.
The rotating electrical machine of the present invention includes: a housing which is a contour; a stator provided to the housing; a rotation shaft rotatably provided in the housing; a rotor provided on the rotating shaft; the magnetic generating unit is provided at an end of the rotating shaft so as to protrude toward an open end of the cylindrical portion; and a magnetic sensor facing the magnetic generator.
Effects of the invention
According to the present invention, the elastic body is maintained in a fixed state with respect to the rotation shaft by inserting the holder into the recess of the rotation shaft. Therefore, the detection accuracy of the rotation angle can be maintained.
Drawings
Fig. 1 is a front view of a key part of a car of an elevator to which a rotating electric machine in embodiment 1 is applied.
Fig. 2 is a longitudinal sectional view of a key portion of an elevator car to which the rotating electric machine in embodiment 1 is applied.
Fig. 3 is a longitudinal sectional view of the rotary electric machine in embodiment 1.
Fig. 4 is a longitudinal sectional view of a key part of the rotary electric machine in embodiment 1.
Fig. 5 is a front view of a key part of the rotary electric machine in embodiment 1.
Fig. 6 is a longitudinal sectional view of a key part of the rotary electric machine in embodiment 2.
Detailed Description
The mode for carrying out the invention is explained with reference to the drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals. Repeated description of this portion is appropriately simplified or omitted.
Embodiment 1
Fig. 1 is a front view of a key part of a car of an elevator to which a rotating electric machine in embodiment 1 is applied. Fig. 2 is a longitudinal sectional view of a key portion of an elevator car to which the rotating electric machine in embodiment 1 is applied.
In fig. 1, an elevator car 1 is provided to be capable of moving up and down in a hoistway, not shown. The ceiling 1a is an upper portion of the car 1.
The pair of car doors 2 are double-open. One of the car doors 2 is provided at one side of the doorway of the car 1. The other side of the car door 2 is provided on the other side of the doorway of the car 1. In fig. 1, a pair of car doors 2 is fully closed.
One of the car doors 2 includes a pair of door shoes 2a. A pair of door shoes 2a are provided at one lower portion of the car door 2, respectively. The pair of door shoes 2a are each coupled to one of the car doors 2 by a leg.
The other of the car doors 2 includes a pair of door shoes 2b. A pair of door shoes 2b are provided at the lower portion of the other of the car doors 2. The pair of door shoes 2b are coupled to the other of the car doors 2 by legs.
The car sill 3 is provided at a lower portion of the doorway of the car 1. The car sill 3 has a groove 4. The groove 4 is formed so as to guide the pair of door shoes 2a and the pair of door shoes 2 b.
One lower end of the door hanger 5 is connected to one upper end of the car door 2. One of the front rollers 6 is provided at one front end portion of the door hanger 5. One of the rear rollers 7 is provided at one rear end portion of the door hanger 5. One of the coupling members 8 is provided between one of the front rollers 6 and one of the rear rollers 7. One lower end of the connecting member 8 is connected to one upper end of the door hanger 5.
The other lower end of the door hanger 5 is connected to the other upper end of the car door 2. The other of the front rollers 6 is provided at the other front end portion of the door hanger 5. The other of the rear rollers 7 is provided at the rear end of the other of the door hanger 5. The other of the connectors 8 is provided between the other of the front rollers 6 and the other of the rear rollers 7. The other lower end of the connecting member 8 is connected to the other upper end of the door hanger 5.
The hanger rail 9 is provided above the doorway of the car 1. The longitudinal direction of the hanger rail 9 is set to be the horizontal direction. The hanger rail 9 supports one of the front rollers 6, one of the rear rollers 7, the other of the front rollers 6, and the other of the rear rollers 7 from below.
One of the pulleys 10 is disposed above one end of the hanger rail 9. The other of the pulleys 10 is disposed above the other end of the hanger rail 9.
The belt V is wound around a pair of pulleys 10. The lower side of the belt V is connected to one upper end portion of the pair of connecting members 8. The upper side of the belt V is connected to the other upper end of the pair of connecting members 8.
The rotary electric machine 11 is provided as a door motor. The rotating electric machine 11 is disposed below the ceiling 1a of the car 1. The rotating motor 11 is disposed above one end of the hanger rail 9. One of the pulleys 10 is rotatably supported by a rotation shaft of the rotary motor 11.
One of the pair of pulleys 10 rotates following the rotation of the rotation shaft of the rotary electric machine 11. The belt V circulates following the rotation of one of the pair of pulleys 10. The pair of links 8 moves in opposite directions to each other following the endless movement of the belt V.
The pair of door hangers 5 move in opposite directions to each other following the pair of links 8, respectively. The pair of car doors 2 move in opposite directions to each other following the pair of door hangers 5.
Next, the rotary electric machine 11 will be described with reference to fig. 3.
Fig. 3 is a longitudinal sectional view of the rotary electric machine in embodiment 1.
As shown in fig. 3, in the rotary electric machine 11, the housing 12 is formed as an outline. The housing 12 includes a1 st shaft support portion 12a and a 2 nd shaft support portion 12b.
The 1 st shaft support portion 12a is formed in a flat plate shape. The 2 nd shaft supporting portion 12b is formed in a flat plate shape. The 1 st shaft support portion 12a and the 2 nd shaft support portion 12b face each other.
The 1 st opening 12c is formed in the center of the 1 st shaft support portion 12 a. The 1 st opening 12c is formed in a circular shape. The 2 nd opening 12d is formed in the center of the 2 nd shaft supporting portion 12 b. The 2 nd opening 12d is formed in a circular shape.
The 1 st bearing 13 is mounted to the 1 st opening 12c. The 2 nd bearing 14 is mounted to the 2 nd opening 12d. The rotary shaft 15 is rotatably supported by the housing 12 via the 1 st bearing 13 and the 2 nd bearing 14.
The rotor 16 includes a rotor core 17 and a plurality of rotor magnets 18. The rotor core 17 is fixed to the rotary shaft 15. A plurality of rotor magnets 18 are fixed to the outer peripheral surface of the rotor core 17.
The stator 19 includes a stator core 20 and a plurality of stator coils 21. The stator core 20 is fixed to the housing 12. The stator core 20 faces the rotor 16 with a gap therebetween. A plurality of stator coils 21 are wound around the stator core 20.
The rotary shaft 15 includes a1 st end 15a and a2 nd end 15b.
The 1 st end 15a is an end on the 1 st shaft support portion 12a side in the axial direction. The 1 st end 15a is held by the 1 st bearing 13 inside the 1 st opening 12 c. The 2 nd end 15b is an end on the 2 nd shaft support portion 12b side in the axial direction. The 2 nd end portion 15b penetrates the 2 nd bearing 14 and protrudes outside the housing 12.
The recess 15c is formed in the center of the end face on the 1 st end 15a side. For example, the concave portion 15c is formed in a circular shape.
The magnetic generating unit 22 is provided inside the recess 15 c. For example, the magnetic generating unit 22 does not protrude from the end face on the 1 st end 15a side.
The magnetic generating unit 22 includes a magnetic generating body 23 and a holder 24.
For example, the magnetic generator 23 is a bonded magnet. For example, the magnetic generator 23 is formed in a disk shape. The magnetic generator 23 is magnetized.
The holder 24 is formed of a material having a lower magnetic permeability than the rotary shaft 15. For example, the holder 24 is formed of resin. The holder 24 includes a cylindrical portion and a bottom portion. The bottom portion closes one axial end of the cylindrical portion. The holder 24 accommodates the magnetic generator 23 in the cylindrical portion. At this time, the holder 24 houses the magnetic generator 23 such that the magnetization direction of the magnetic generator 23 is orthogonal to the axial direction of the rotary shaft 15.
In order to detect the relative angle between the rotor magnet 18 and the stator coil 21, the magnetic generator 23 is disposed at a certain angle with respect to the rotor magnet 18. The magnetic generating body 23 is positioned in the circumferential direction of the rotary shaft 15.
For example, the sensor substrate 27 is a printed substrate. The sensor substrate 27 is fixed to a surface of the 1 st shaft support portion 12a opposite to the 2 nd shaft support portion 12 b. For example, the sensor substrate 27 is fixed to the 1 st shaft support portion 12a by a plurality of bolts. The sensor substrate 27 closes the 1 st opening 12c.
For example, the magnetic sensor 28 is a magnetoresistive element. The magnetic sensor 28 is provided on the sensor substrate 27. The magnetic sensor 28 faces the magnetic generator 23 with a gap therebetween.
The magnetic generation unit 22, the sensor substrate 27, and the magnetic sensor 28 function as a rotation angle detection device 29. The rotation angle detection device 29 generates a signal corresponding to the rotation angle of the rotation shaft 15. When the rotary electric machine 11 is a motor, the signal is sent to a control unit (not shown) that controls the rotation of the motor.
Next, the magnetic generating unit 22 will be described with reference to fig. 4 and 5.
Fig. 4 is a longitudinal sectional view of a key part of the rotary electric machine in embodiment 1. Fig. 5 is a front view of a key part of the rotary electric machine in embodiment 1.
As shown in fig. 4 and 5, the rotary shaft 15 includes a receiving portion 15d. The receiving portion 15d is formed at the bottom of the recess 15 c. The receiving portion 15d has a larger inner diameter than the other portion of the recess 15 c.
The magnetic generation unit 22 includes an elastic body 25 and a pair of rotation inhibitors 26.
The elastic body 25 includes a pair of elastic pieces 25a.
For example, a pair of elastic pieces 25a are provided integrally with the holder 24 on one side and the other side of the outer peripheral portion of the holder 24, respectively. The pair of elastic pieces 25a are fitted into the receiving portions 15d of the rotary shaft 15, respectively. The pair of elastic pieces 25a are respectively in contact with the edge portion on the 1 st end portion 15a side of the rotation shaft 15 in the receiving portion 15d at the contact portion 25 b. The contact portion 25b is inclined so as to approach the opposite side of the 1 st end portion 15a side of the rotation shaft 15 as going outward.
The pair of elastic pieces 25a maintain the state in which the holder 24 is inserted into the recess 15c of the rotary shaft 15 by the restoring force of elastic deformation. Specifically, in each of the pair of elastic pieces 25a, the contact portion 25b generates a force that presses the holder 24 against the bottom surface of the recess 15c in the rotation shaft 15.
A pair of rotation inhibitors 26 are provided on the outer peripheral portion of the holder 24. The arrangement direction of the pair of rotation suppressing bodies 26 is orthogonal to the arrangement direction of the pair of elastic pieces 25 a. The pair of rotation inhibitors 26 are fitted into the pair of cutouts 15e formed in the 1 st end 15a side of the rotation shaft 15.
According to embodiment 1 described above, the pair of elastic pieces 25a maintain the state in which the holder 24 is inserted into the recess 15c of the rotary shaft 15. Therefore, the detection accuracy of the rotation angle can be maintained.
In addition, an adhesive, screw fixation, or the like is not required for fixing the holder 24 to the rotary shaft 15. Therefore, the holder 24 can be easily fixed with respect to the rotation shaft 15.
Further, the pair of elastic pieces 25a generate a force pressing the holder 24 against the bottom surface of the recess 15c in the rotation shaft 15. Therefore, the axial movement of the holder 24 to the rotary shaft 15 can be suppressed. As a result, the detection accuracy of the rotation angle can be maintained more reliably.
Further, a pair of elastic pieces 25a are fitted into the receiving portions 24b of the rotary shaft 15, respectively. Therefore, the movement of the holder 24 with respect to the rotation shaft 15 can be suppressed with a simple structure.
Further, in each of the pair of elastic pieces 25a, the contact portion 25d is in contact with the side of the receiving portion 15d closer to the 1 st end portion 15a of the rotation shaft 15. The contact portion 25d is inclined so as to approach the opposite side of the 1 st end portion 15a side of the rotation shaft 15 as going outward. Therefore, a force pressing the holder 24 against the bottom surface of the recess 15c in the rotation shaft 15 can be easily generated.
The pair of elastic pieces 25a maintain the state in which the holder 24 is inserted into the recess 15c of the rotary shaft 15 by the restoring force of elastic deformation. Specifically, in each of the pair of elastic pieces 25a, the contact portion 25d generates a force that presses the holder 24 against the bottom surface of the recess 15c in the rotation shaft 15. Therefore, the distance from the bottom surface of the concave portion 15c to the surface of the magnetic generator 23 facing the magnetic sensor 28 can be kept constant, and the detection accuracy of the rotation angle can be maintained more reliably.
Further, the pair of rotation suppressing bodies 26 are fitted into the pair of cutouts 15e of the rotary shaft 15, respectively. Therefore, the rotation of the holder 24 with respect to the rotation shaft 15 can be suppressed. As a result, the detection accuracy of the rotation angle can be maintained more reliably.
The pair of cutouts 15e may be arranged symmetrically with respect to a symmetry plane defined by the axial direction of the rotation shaft 15 and the magnetization direction of the magnetic generator 23. In this case, distortion of the magnetic flux generated by the magnetic generator 23 can be minimized. As a result, the detection accuracy of the rotation angle can be maintained more reliably.
Embodiment 2
Fig. 6 is a longitudinal sectional view of a key part of the rotary electric machine in embodiment 2. The same or corresponding parts as those of embodiment 1 are denoted by the same reference numerals. The description of this portion is omitted.
The receiving portion 15d of the rotary shaft 15 of embodiment 2 includes an inclined portion 15f. The inclined portion 15f is formed on the end portion side of the rotary shaft 15 in the receiving portion 15d so as to approach the opposite side of the 1 st end portion 15a side of the rotary shaft 15 as going outward.
The pair of elastic pieces 25a are respectively in contact with the inclined portions 15f in the receiving portion 15d of the rotary shaft 15.
According to embodiment 2 described above, the pair of elastic pieces 25a are respectively in contact with the inclined portions 15f in the receiving portion 15d of the rotary shaft 15. Therefore, a force pressing the holder 24 against the bottom surface of the recess 15c in the rotation shaft 15 can be easily generated.
The rotary electric machine 11 according to embodiment 1 and embodiment 2 may be applied to motors other than door motors, generators, generator motors, and the like.
The magnetic sensor 28 of embodiment 1 and embodiment 2 may be a hall element, a hall IC, a magnetic encoder, or the like.
Industrial applicability
As described above, the magnetic generating unit, the rotation angle detecting device, and the rotating electric machine of the present invention can be used in an elevator system.
Description of the reference numerals
1: A car; 1a: a ceiling; 2: a car door; 2a: a door boot; 2b: a door boot; 3: a car sill; 4: a groove; 5: a door hanger; 6: a front roller; 7: a rear roller; 8: a connecting piece; 9: a hanger rail; 10: a belt wheel; 11: a rotating electric machine; 12: a housing; 12a: a1 st shaft support part; 12b: a 2 nd shaft supporting part; 12c: a1 st opening; 12d: a 2 nd opening; 13: a1 st bearing; 14: a 2 nd bearing; 15: a rotation shaft; 15a: a1 st end; 15b: a 2 nd end; 15c: a concave portion; 15d: a receiving portion; 15e: a notch; 15f: an inclined portion; 16: a rotor; 17: a rotor core; 18: a rotor magnet; 19: a stator; 20: a stator core; 21: a stator coil; 22: a magnetic generation unit; 23: a magnetic generator; 24: a holder; 25: an elastomer; 25a: an elastic sheet; 25b: a contact portion; 26: a rotation inhibitor; 27: a sensor substrate; 28: a magnetic sensor; 29: rotation angle detecting means.
Claims (12)
1. A magnetic generating unit is provided with:
a magnetic generator magnetized;
a holder which accommodates the magnetic generator and is inserted into a recess provided at an end of a rotary shaft of the rotary electric machine; and
An elastic body provided in the holder, the elastic body maintaining a state in which the holder is inserted into the recess of the rotating shaft by a restoring force of elastic deformation generated by contact with an inner peripheral portion of the recess in the rotating shaft,
The holder includes a cylindrical portion and a bottom portion, the cylindrical portion houses the magnetic generator,
The bottom is disposed between one end of the rotation shaft in the axial direction and the magnetic generator.
2. The magnetic generating unit according to claim 1, wherein,
The elastic body generates a force pressing the holder against the bottom surface of the recess in the rotation shaft.
3. The magnetic generating unit according to claim 1, wherein,
The elastic body includes a pair of elastic pieces provided on one side and the other side of the outer peripheral portion of the holder, respectively, and fitted into a receiving portion having an inner diameter larger than that of the other portion at the bottom of the recess of the rotary shaft.
4. The magnetic generating unit according to claim 2, wherein,
The elastic body includes a pair of elastic pieces provided on one side and the other side of the outer peripheral portion of the holder, respectively, and fitted into a receiving portion having an inner diameter larger than that of the other portion at the bottom of the recess of the rotary shaft.
5. A magnetic generating unit according to claim 3, wherein,
The pair of elastic pieces each have a contact portion that is inclined so as to approach the opposite side of the end portion side of the rotation shaft as going outward, and that contacts the side of the end portion of the receiving portion that is closer to the rotation shaft.
6. The magnetic generating unit according to claim 4, wherein,
The pair of elastic pieces each have a contact portion that is inclined so as to approach the opposite side of the end portion side of the rotation shaft as going outward, and that contacts the side of the end portion of the receiving portion that is closer to the rotation shaft.
7. A magnetic generating unit according to claim 3, wherein,
The pair of elastic pieces are respectively in contact with inclined portions formed on one side of the receiving portion near the end of the rotating shaft so as to approach the opposite side of the end of the rotating shaft as going outward.
8. The magnetic generating unit according to claim 4, wherein,
The pair of elastic pieces are respectively in contact with inclined portions formed on one side of the receiving portion near the end of the rotating shaft so as to approach the opposite side of the end of the rotating shaft as going outward.
9. The magnetic generating unit according to any one of claims 1 to 8, wherein,
The magnetic generation unit includes a rotation inhibitor provided on the holder and fitted into a cutout formed on an end side of the rotation shaft.
10. The magnetic generating unit according to any one of claims 1 to 8, wherein,
The magnetic generating unit includes a pair of rotation suppressing bodies provided to the holder and fitted into a pair of cutouts disposed symmetrically with respect to a symmetry plane defined by an axial direction of the rotation shaft and a magnetization direction of the magnetic generating body, respectively, on an end side of the rotation shaft.
11. A rotation angle detection device is provided with:
the magnetic generation unit of any one of claims 1 to 10; and
And a magnetic sensor facing the magnetic generator.
12. A rotating electrical machine is provided with:
A housing which is a contour;
A stator provided to the housing;
a rotation shaft rotatably provided in the housing;
A rotor provided on the rotating shaft;
The magnetic generating unit according to any one of claims 1 to 10, provided at an end of the rotating shaft; and
And a magnetic sensor facing the magnetic generator.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2019/048280 WO2021117130A1 (en) | 2019-12-10 | 2019-12-10 | Magnetism generation unit, rotation angle detection device, and rotary electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114729820A CN114729820A (en) | 2022-07-08 |
| CN114729820B true CN114729820B (en) | 2024-04-23 |
Family
ID=76329961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980101334.9A Active CN114729820B (en) | 2019-12-10 | 2019-12-10 | Magnetic generating unit, rotation angle detecting device, and rotating electric machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7306484B2 (en) |
| CN (1) | CN114729820B (en) |
| WO (1) | WO2021117130A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013156184A (en) * | 2012-01-31 | 2013-08-15 | Panasonic Corp | Rotation angle detection device |
| JP2015135295A (en) * | 2014-01-18 | 2015-07-27 | アルプス電気株式会社 | Magnet holding unit and magnetic type rotation angle detection device |
| CN105339770A (en) * | 2013-04-05 | 2016-02-17 | 法雷奥开关和传感器有限责任公司 | Method for producing magnet unit for sensor device of motor vehicle, magnet unit, sensor device and motor vehicle |
| JP2018189612A (en) * | 2017-05-11 | 2018-11-29 | 株式会社小野測器 | Rotary encoder |
| JP2018204981A (en) * | 2017-05-30 | 2018-12-27 | 愛三工業株式会社 | Rotation angle detector |
| WO2019012693A1 (en) * | 2017-07-14 | 2019-01-17 | 三菱電機株式会社 | Rotary electric machine |
| CN209372275U (en) * | 2018-12-29 | 2019-09-10 | 上海精传电子科技有限公司 | A kind of induction torque angle sensor structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005062784A1 (en) * | 2005-12-28 | 2007-07-05 | Robert Bosch Gmbh | Magnet assembly for use in electric motor, has magnet holder and magnetic component that are formed as separate unit, where component is injected into plastic of holder that is connected with shaft |
-
2019
- 2019-12-10 JP JP2021563488A patent/JP7306484B2/en active Active
- 2019-12-10 WO PCT/JP2019/048280 patent/WO2021117130A1/en active Application Filing
- 2019-12-10 CN CN201980101334.9A patent/CN114729820B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013156184A (en) * | 2012-01-31 | 2013-08-15 | Panasonic Corp | Rotation angle detection device |
| CN105339770A (en) * | 2013-04-05 | 2016-02-17 | 法雷奥开关和传感器有限责任公司 | Method for producing magnet unit for sensor device of motor vehicle, magnet unit, sensor device and motor vehicle |
| JP2015135295A (en) * | 2014-01-18 | 2015-07-27 | アルプス電気株式会社 | Magnet holding unit and magnetic type rotation angle detection device |
| JP2018189612A (en) * | 2017-05-11 | 2018-11-29 | 株式会社小野測器 | Rotary encoder |
| JP2018204981A (en) * | 2017-05-30 | 2018-12-27 | 愛三工業株式会社 | Rotation angle detector |
| WO2019012693A1 (en) * | 2017-07-14 | 2019-01-17 | 三菱電機株式会社 | Rotary electric machine |
| CN209372275U (en) * | 2018-12-29 | 2019-09-10 | 上海精传电子科技有限公司 | A kind of induction torque angle sensor structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7306484B2 (en) | 2023-07-11 |
| JPWO2021117130A1 (en) | 2021-06-17 |
| WO2021117130A1 (en) | 2021-06-17 |
| CN114729820A (en) | 2022-07-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6373532B1 (en) | Rotating electric machine | |
| JP5268364B2 (en) | Sliding door with magnetic drive system with distance measuring system | |
| ES2138768T3 (en) | ACTIVE SWING ABSORBER. | |
| JP2008527217A5 (en) | ||
| CN113276943B (en) | Torque index sensor and steering apparatus including the same | |
| KR20200069339A (en) | Electric machine | |
| JP6373527B1 (en) | Rotating electric machine and door device using the same | |
| CN114729820B (en) | Magnetic generating unit, rotation angle detecting device, and rotating electric machine | |
| KR20120094771A (en) | Inner type bldc moter | |
| CN101312312A (en) | Electric motor | |
| EP2404145B1 (en) | Holder for a position sensor | |
| CN114729822B (en) | Magnetic generating unit, rotation angle detecting device, and rotating electric machine | |
| CN114641669B (en) | Magnetic generating unit, rotation angle detecting device, and rotating electric machine | |
| JP6822620B1 (en) | Magnetic generator, rotation angle detector, and rotation machine | |
| WO2019186832A1 (en) | Dynamo-electric machine, and elevator door device using same | |
| CN111937282A (en) | Motor with integrated encoder | |
| JP2003061311A (en) | Motor | |
| WO2022157828A1 (en) | Rotary electric machine and door device | |
| JP2013246077A (en) | Rotation angle detector and motor device | |
| KR101551468B1 (en) | Brush holder apparatus provided with hall sensor | |
| JP2010038573A (en) | Potentiometer | |
| JP2017135792A (en) | motor | |
| CZ9296A3 (en) | Motor drive | |
| KR20150025647A (en) | Rotor and motor including the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |