CN108718137A - A kind of motor rotation axis shaft end position sensor assembly - Google Patents
A kind of motor rotation axis shaft end position sensor assembly Download PDFInfo
- Publication number
- CN108718137A CN108718137A CN201810533964.0A CN201810533964A CN108718137A CN 108718137 A CN108718137 A CN 108718137A CN 201810533964 A CN201810533964 A CN 201810533964A CN 108718137 A CN108718137 A CN 108718137A
- Authority
- CN
- China
- Prior art keywords
- rotation axis
- ring
- reaction magnetic
- tube body
- magnetic ring
- 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.)
- Pending
Links
- 238000001746 injection moulding Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 5
- 239000003292 glue Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005389 magnetism Effects 0.000 abstract description 2
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
Abstract
The invention discloses a kind of motor rotation axis shaft end position sensor assemblies, including rotor assembly and rotation axis, the upper end of the rotation axis is inserted with ring stand, the ring stand includes tube body, is relatively fixed to the dowel of tube body bottom surface, is fixed on dowel lower part locating ring takes shape in the installing blind in the middle part of tube body and takes shape in the installation annular groove at the top of tube body, the mounting groove injection molding is fixed with reaction magnetic ring, the reaction magnetic ring at least has the magnet ring pole that a pair includes the poles N and the poles S, the beneficial effects of the present invention are：It is fixed in installation annular groove by the way that reaction magnetic ring to be moulded in, stress is avoided to generate broken failure hidden danger, then ring stand is interference fitted with rotation axis, mounting means is simple and reliable, the high temperature for also having obstructed motor simultaneously is transmitted on reaction magnetic ring, greatly reduces the probability that reaction magnetic ring magnetism fails by high temperature, and the mounting means of reaction magnetic ring is fixed instead of glue, it avoids reaction magnetic ring to be thrown out of, improves its service life.
Description
Technical field：
The present invention relates to driving motor field, specifically a kind of motor rotation axis shaft end position sensor assembly.
Background technology：
Reaction magnetic ring in the position sensor assembly of shaft end is needed mounted on the shaft end position of motor, but more existing
There are the failure hidden danger that reaction magnetic ring stress is crushed for mounting means, and by glue cementation after, heat that motor is sent out passes
Onto reaction magnetic ring, causes glue is affected by temperature to cause to fail, reaction magnetic ring is caused to be thrown out of.
Invention content：
The purpose of the present invention be exactly in order to solve existing issue, and a kind of reaction magnetic ring is provided and be molded simultaneously with collector ring and is consolidated
Fixed, saving material reduces cost, and reaction magnetic ring will not be because the hidden danger and glue of stress generation break inactivation be because of temperature change generation
Failure hidden danger motor rotation axis shaft end position sensor assembly.
The technology solution of the present invention is as follows：
A kind of motor rotation axis shaft end position sensor assembly, including rotor assembly and rotation axis, the rotation axis it is upper
End is inserted with ring stand, and the ring stand includes tube body, is relatively fixed to the dowel of tube body bottom surface, is fixed on determining for dowel lower part
Position ring takes shape in the installing blind in the middle part of tube body and takes shape in the installation annular groove at the top of tube body, and the mounting groove injection molding is fixed with
Reaction magnetic ring, the reaction magnetic ring at least have the magnet ring pole that a pair includes the poles N and the poles S.
Preferably, the outer casing inner wall of motor is fixed with opposite sensor chip parallel with reaction magnetic ring.
Preferably, the motor is brush motor and brushless motor.
Preferably, the cylindrical wall injection molding of the tube body is fixed with spaced two collector rings.
Preferably, forming the round platform coordinated with locating ring in the rotation axis, the round platform top surface is opposite to be formed
Vertical slot, the dowel are embedded in the vertical slot.
Preferably, the material of the ring stand is PPS.
The beneficial effects of the present invention are：It is fixed in installation annular groove by the way that reaction magnetic ring to be moulded in, avoid stress from generating
Broken failure hidden danger, then ring stand and rotation axis be interference fitted, mounting means is simple and reliable, while also having obstructed the height of motor
Temperature is transmitted on reaction magnetic ring, greatly reduces the probability that reaction magnetic ring magnetism fails by high temperature, is fixed and is incuded instead of glue
The mounting means of magnet ring avoids reaction magnetic ring and is thrown out of, and improves its service life.
Description of the drawings：
Fig. 1 is the half-section diagram of the present invention；
Fig. 2 is dimensional structure diagram of the present invention；
Fig. 3 is schematic top plan view of the present invention；
Fig. 4 is close-up schematic view at Fig. 3 A
In attached drawing：1, rotor assembly 2, rotation axis；3, ring stand；4, tube body；5, dowel；6, locating ring；7, installing blind；
8, annular groove is installed；9, reaction magnetic ring；10, magnet ring pole；11, sensor chip；12, collector ring；13, round platform；14, vertical slot.
Specific implementation mode：
As shown in Figs 1-4,2 shaft end position sensor assembly of motor rotation axis, including rotor assembly 1 and rotation axis 2, it is described
The upper end of rotation axis 2 is inserted with ring stand 3, and the ring stand 3 includes tube body 4, the dowel 5 for being relatively fixed to 4 bottom surface of tube body, fixation
Locating ring 6, the installation annular groove that takes shape in the installing blind 7 at the middle part of tube body 4 and take shape in 4 top of tube body in 5 lower part of dowel
8, the injection molding of installation annular groove 8 is fixed with reaction magnetic ring 9, and the reaction magnetic ring 9 at least has the magnetic that a pair includes the poles N and the poles S
Circumpolar 10.
Specifically, the outer casing inner wall of motor is fixed with opposite sensor chip 11 parallel with reaction magnetic ring 9, passes through sensing
The real time position of rotor is transferred to electric machine controller by the combination of device chip 11 and reaction magnetic ring 9.
Specifically, the motor is brush motor and brushless motor.
Specifically, the cylindrical wall injection molding of the tube body 4 is fixed with spaced two collector rings 12, the collection in this setting
Electric ring 12 is carried out at the same time injection molding with reaction magnetic ring 9, saves material, reduces cost.
Specifically, form the round platform 13 coordinated with locating ring 6 in the rotation axis 2,13 top surface of the round platform relative at
Type has vertical slot 14, the dowel 5 to be embedded in the vertical slot 14, and it is simpler reliable that this setting makes the installation of ring stand 3 position.
Specifically, the material of the ring stand is PPS.
Reaction magnetic ring 9 is nonmagnetic in injection molding, if magnetized in advance to reaction magnetic ring 9, high temperature when injection molding can make induction
Magnet ring 9 demagnetizes, and influences using effect and time, so after the completion of waiting for that reaction magnetic ring 9 and collector ring 12 are molded, using expanding with heat and contract with cold
Method, ring stand 3 and rotation axis 2 are interference fitted, then magnetizes to reaction magnetic ring 9.
The foregoing is merely presently preferred embodiments of the present invention, and those of ordinary skill in the art are not making creative work
Under the premise of the every other embodiment that is obtained, should all belong to the scope of protection of the invention.
Claims (6)
1. a kind of motor rotation axis shaft end position sensor assembly, including rotor assembly and rotation axis, it is characterised in that：Described turn
The upper end of moving axis is inserted with ring stand, and the ring stand includes tube body, is relatively fixed to the dowel of tube body bottom surface, is fixed on dowel
The locating ring of lower part takes shape in the installing blind in the middle part of tube body and takes shape in the installation annular groove at the top of tube body, the mounting groove note
Modeling is fixed with reaction magnetic ring, and the reaction magnetic ring at least has the magnet ring pole that a pair includes the poles N and the poles S.
2. motor rotation axis shaft end according to claim 1 position sensor assembly, it is characterised in that：In the shell of motor
Wall is fixed with opposite sensor chip parallel with reaction magnetic ring.
3. motor rotation axis shaft end according to claim 2 position sensor assembly, it is characterised in that：The motor is to have
Brush motor and brushless motor.
4. motor rotation axis shaft end according to claim 1 position sensor assembly, it is characterised in that：Outside the tube body
Circle wall injection molding is fixed with spaced two collector rings.
5. motor rotation axis shaft end according to claim 1 position sensor assembly, it is characterised in that：In the rotation axis
The round platform coordinated with locating ring is formed, the round platform top surface is opposite to form vertical slot, and the dowel is embedded at the vertical slot
In.
6. motor rotation axis shaft end according to claim 1 position sensor assembly, it is characterised in that：The material of the ring stand
Matter is PPS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810533964.0A CN108718137A (en) | 2018-05-29 | 2018-05-29 | A kind of motor rotation axis shaft end position sensor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810533964.0A CN108718137A (en) | 2018-05-29 | 2018-05-29 | A kind of motor rotation axis shaft end position sensor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108718137A true CN108718137A (en) | 2018-10-30 |
Family
ID=63911672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810533964.0A Pending CN108718137A (en) | 2018-05-29 | 2018-05-29 | A kind of motor rotation axis shaft end position sensor assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108718137A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010031554A2 (en) * | 2008-09-17 | 2010-03-25 | Valeo Schalter Und Sensoren Gmbh | Magnet assembly for a torque and/or rotational angle sensor arrangement having a magnet ring and production method |
| CN203660696U (en) * | 2013-12-31 | 2014-06-18 | 江苏超力电器有限公司 | Hybrid excitation start-stop motor magnetic ring device |
| JP2014183674A (en) * | 2013-03-21 | 2014-09-29 | Hitachi Automotive Systems Steering Ltd | Rotation angle detection apparatus |
| CN104617731A (en) * | 2015-03-04 | 2015-05-13 | 余姚市爱优特电机有限公司 | Assembling structure for sensing magnetic ring and rotating shaft of motor rotor |
| CN105932850A (en) * | 2015-02-27 | 2016-09-07 | 博泽沃尔兹堡汽车零部件有限公司 | Electrical Machine, In Particular Electric Motor For Motor Vehicle |
| CN208445436U (en) * | 2018-05-29 | 2019-01-29 | 浙江德宏汽车电子电器股份有限公司 | A kind of motor rotation axis shaft end position sensor assembly |
-
2018
- 2018-05-29 CN CN201810533964.0A patent/CN108718137A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010031554A2 (en) * | 2008-09-17 | 2010-03-25 | Valeo Schalter Und Sensoren Gmbh | Magnet assembly for a torque and/or rotational angle sensor arrangement having a magnet ring and production method |
| JP2014183674A (en) * | 2013-03-21 | 2014-09-29 | Hitachi Automotive Systems Steering Ltd | Rotation angle detection apparatus |
| CN203660696U (en) * | 2013-12-31 | 2014-06-18 | 江苏超力电器有限公司 | Hybrid excitation start-stop motor magnetic ring device |
| CN105932850A (en) * | 2015-02-27 | 2016-09-07 | 博泽沃尔兹堡汽车零部件有限公司 | Electrical Machine, In Particular Electric Motor For Motor Vehicle |
| CN104617731A (en) * | 2015-03-04 | 2015-05-13 | 余姚市爱优特电机有限公司 | Assembling structure for sensing magnetic ring and rotating shaft of motor rotor |
| CN208445436U (en) * | 2018-05-29 | 2019-01-29 | 浙江德宏汽车电子电器股份有限公司 | A kind of motor rotation axis shaft end position sensor assembly |
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