CN104753257A - Electric motor and magnetizing method of electric motor - Google Patents
Electric motor and magnetizing method of electric motor Download PDFInfo
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- CN104753257A CN104753257A CN201510134828.0A CN201510134828A CN104753257A CN 104753257 A CN104753257 A CN 104753257A CN 201510134828 A CN201510134828 A CN 201510134828A CN 104753257 A CN104753257 A CN 104753257A
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- magnet ring
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- rotating shaft
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Abstract
The invention relates to an electric motor and a magnetizing method of the electric motor. The electric motor comprises a stator, a rotor, a base plate, and two end covers; the rotor crosses through the stator, and is assembled on the stator through front and back end covers and a bearing installed on the end cover; the base plate is arranged on the stator; the rotor comprises a rotary shaft and a magnetic ring, and the magnetic ring sleeves on the rotary shaft; the magnetic ring comprises a power function zone used for driving the rotary shaft to rotate and a signal function zone used for recording the rotating state and generating direction and speed signals. Compared with the prior art, the power function zone and the signal function zone of the electric motor are magnetized by the same one magnetic ring at the same time and assembled in one time; thus the operating property is improved and the operation time is shortened; after assembling, the electric motor needs not adjust the signal part, the operation station is reduced, and a special adjusting device is not in need. The invention further provides a magnetizing method applied to the electric motor.
Description
Technical field
The present invention relates to a kind of motor, particularly a kind ofly can carry out to same section of magnet ring the motor that power section and signal section magnetize simultaneously; The invention still further relates to a kind of magnetization method being applied to above-mentioned motor.
Background technology
Refer to Fig. 1, it is the overall structure schematic diagram of the motor of prior art.Existing motor comprises stator 1a, rotor 2a, transducer 3a, end cap 4a.
Please refer to Fig. 2 a-2b, it is respectively side and the Facad structure schematic diagram of stator.Described stator 1a comprises stator body 11a and is arranged on the power wiring substrate 12a on this stator body 11a.
Please refer to Fig. 3 a, it is the structural representation of the rotor of prior art.Described rotor 2a comprises rotating shaft 22a and power magnet ring 21a, and described power magnet ring 21a is set on rotating shaft 22a.Fig. 3 b is the magnetic pole distribution map of the power magnet ring of prior art.After described power magnet ring 21a magnetizes, this power magnet ring 21a forms 4 to centrosymmetric magnetic pole.
Wherein, described rotor 2a is through this stator body 11a, and the rear and front end of this rotor 2a is assembled together by the bearing 41a of rear and front end lid 4a and stator 1a.
Refer to Fig. 4 a-4d, it be respectively the installation diagram of the connection diagram of the transducer being prior art, signal magnet ring and axle sleeve, signal magnet ring magnetic after magnetic pole distribution map and Fig. 4 d be the position view of the signal substrate of prior art.Described transducer 3a comprises axle sleeve 31a, signal magnet ring 32a and signal circuit substrate 33a.Wherein, the signal circuit substrate 33a of described transducer 3a is arranged on rear end cap 4a; Described signal magnet ring 32a to be set on axle sleeve 31a and to be fixed by screws on rotor 2a.Wherein, after described signal magnet ring 32a magnetizes, this signal magnet ring 32a forms 4 to centrosymmetric magnetic pole.
Described power wiring substrate 12a is connected with power magnet ring 21a, and described signal substrate 33a is connected with signal magnet ring 32a.Wherein, power magnet ring 21a and power wiring substrate 12a is used for the rotation of drive motors rotor; Signal magnet ring 32a and signal substrate 33a, for recording rotary state, generates direction and rate signal, and feeds back to the control device beyond motor.
But, based on the structure of existing motor, be respectively power magnet ring and signal magnet ring are separately magnetized, then install respectively in the process of magnetizing, therefore cause prior art to there is following technological deficiency:
1, because the mode of magnetizing of existing motor is: power magnet ring and signal magnet ring are separately magnetized, install respectively, the activity duration is long;
2, because the power magnet ring of motor and signal magnet ring separate, magnet ring needs to design and produce respectively, and needs to design magnetizing coil respectively and magnetic, causes cost to increase;
3, because the power section of motor and signal section separate, the station needing the circuit production increasing signal section to produce and equipment;
4, because the signal magnet ring of motor needs to install separately and carry out signal adjustment, need to increase operation station and special adjustment equipment.
Separately magnetizing and assembling 5, due to power magnet ring and signal magnet ring, causes the length of motor, volume to increase.
Summary of the invention
The invention reside in the shortcoming that overcomes prior art with not enough, provide a kind of can simultaneously to the motor that power function part and the semiotic function part of same section of magnet ring magnetize.
The present invention is realized by following technical scheme: a kind of motor, comprises stator, rotor, substrate, two end caps; Described rotor through stator, and by front and rear cover and the bearing assemble that is arranged on end cap on stator; Described substrate is arranged on stator; Described rotor comprises rotating shaft and magnet ring, and described magnet ring is set in rotating shaft; Described magnet ring comprises for the power function region of drive shaft rotation and the semiotic function region for generating rotary state signal.
Compared to prior art, the present invention by using same section of magnet ring to magnetize motor power functional area and semiotic function region simultaneously, disposable assembling, workability improve, the activity duration shorten; Without the need to signal section adjustment after assembling, operation station reduces, without the need to special adjustment equipment.
Further, owing to being merged by the magnet ring in the power function region of motor and semiotic function region, the cost with magnetizing coil that designs and produces of magnet ring can therefore be reduced.Meanwhile, because the magnet ring in power function region and semiotic function region merges, the length of motor, volume are reduced, is conducive to the miniaturization of motor, lightweight.
As a further improvement on the present invention, the magnetic pole line of demarcation in described semiotic function region is parallel with the axis of rotating shaft or at angle; The magnetic pole line of demarcation in described power function region is parallel with the axis of rotating shaft or become an angle of inclination, and it is 0 ~ 30 degree.
As preferably, the length in described semiotic function region is greater than 0mm, and it is less than or equal to 50% of the total length in power function region and semiotic function region.
As a further improvement on the present invention, described substrate is provided with power connection circuit and sensor signal circuit; Described power connection circuit is electrically connected with described power function region; Described sensor signal circuit is electrically connected with described semiotic function region.
By power connection circuit and transducing signal circuit being arranged on the same substrate, therefore without the need to carrying out independently making production for transducing signal circuit, correspondingly reduce cost investment.
As a further improvement on the present invention, described rotor also comprises a positioning element; Described magnet ring is fixed on rotating shaft axially by this positioning element.Further, by increasing the positioning element of magnet ring, the precision of the position of magnetizing in magnet ring power function region and semiotic function region is improved, further lifting motor performance.
As a further improvement on the present invention, described positioning element is the pad that a center is provided with axis hole, and described pad is set in rotating shaft.
Be applied to a magnetization method for above-mentioned motor, it comprises the following steps:
Step 1 a: magnetizing coil is provided; This coil comprises two sections can realize to same section of magnet ring the coiler part that two sections of differences magnetic shape simultaneously;
Step 2: the rotor being arranged with magnet ring is put into this magnetizing coil, to magnetizing coil connect transient high voltage, magnet ring is magnetized and formed on magnet ring the magnetic circuit for providing semiotic function and power function respectively magnetic shape.Wherein, as preferably, the scope of the voltage of described connection is: 1500V ~ 3000V.
As a further improvement on the present invention, the signal of described coil coil-winding direction and this power of part coil-winding direction partly of magnetizing of magnetizing is parallel or become an angle of inclination, and this angle of inclination is 0 ~ 30 degree; After having magnetized, the magnetic pole line of demarcation in the semiotic function region of described magnet ring is parallel with the axis of rotating shaft; The magnetic pole line of demarcation in described power function region is parallel with the axis of rotating shaft or become an angle of inclination, and this angle of inclination is 0 ~ 30 degree.
As preferably, the length in described semiotic function region is greater than 0mm, and is less than or equal to 50% of the total length of power function regional signal functional area.
In order to understand better and implement, describe the present invention in detail below in conjunction with accompanying drawing.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the motor of prior art.
Fig. 2 a is the stator side structural representation of prior art.
Fig. 2 b is the Facad structure schematic diagram of the stator of prior art.
Fig. 3 a is the structural representation of the rotor of prior art.
Fig. 3 b is the magnetic pole distribution map of the power magnet ring of prior art.
Fig. 4 a is the connection diagram of the transducer of prior art.
Fig. 4 b is the signal magnet ring of prior art and the installation diagram of axle sleeve.
Fig. 4 c is the magnetic pole distribution map after the signal magnet ring of prior art magnetic.
Fig. 4 d is the position view of the signal substrate of prior art.
Fig. 5 a is the overall structure schematic diagram of motor of the present invention.
Fig. 5 b is the exploded view of electric machine structure of the present invention.
Fig. 6 a is the side structure schematic diagram of stator of the present invention.
Fig. 6 b is the Facad structure schematic diagram of stator of the present invention.
Fig. 7 is that substrate of the present invention is separated schematic diagram.
Fig. 8 is the structural representation of rotor of the present invention.
Fig. 9 a is the magnetic pole line of demarcation schematic diagram of magnet ring of the present invention.
Fig. 9 b is the magnetic pole distribution map of magnet ring of the present invention.
Figure 10 is that magnet ring of the present invention magnetizes schematic diagram.
Figure 11 is the coiling schematic diagram of magnetizing coil of the present invention.
Embodiment
Please refer to Fig. 5 a and Fig. 5 b, it is respectively overall structure schematic diagram and the STRUCTURE DECOMPOSITION figure of motor of the present invention.Motor of the present invention, comprises stator 1, substrate 12, rotor 2 and two end caps 3.Described rotor 2 is arranged in stator 1, and the rear and front end of this rotor 2 is connected with described two end cap 3 respectively, to fix on the stator 1.Described substrate 12 is arranged on the stator 1.Concrete, described two end cap 3 is respectively equipped with bearing 31; The rear and front end of described rotor 2 is separately positioned on the bearing 31 of this two end cap 3.
Please refer to Fig. 6 a and 6b, it is respectively the side of stator of the present invention and the structural representation in front.Wherein, described stator comprises stator body 11.Concrete, in the present embodiment, described substrate 12 is arranged on the end face of this stator body 11.Please refer to Fig. 7, it is that substrate of the present invention is separated schematic diagram.Described substrate 12 is sandwich construction, which is provided with power connection circuit 121 and sensor signal circuit 122.Wherein, described power connection circuit 121 comprises four layers of circuit submounts, and described sensor signal circuit 122 comprises two-tier circuit submounts.Between described power connection circuit 121 and sensor signal circuit 122, mutually insulated is arranged.
Refer to Fig. 8, it is the structural representation of rotor of the present invention.Described rotor 2 comprises magnet ring 21 and rotating shaft 22, and described magnet ring 21 is set in rotating shaft 22.The location of conveniently magnet ring 21 further, described rotor 2 also comprises a positioning element 23; Described magnet ring 21 is fixed on rotating shaft 22 axially by this positioning element 23.Concrete, described positioning element 23 is set in rotating shaft 22, can be stopped by this positioning element 23 to magnet ring 21, prevents the slip of magnet ring 21 in rotating shaft 22, positions magnet ring 21.In the present embodiment, described positioning element 23 is the pad that a center is provided with axis hole.
Please refer to Fig. 9 a and Fig. 9 b, it is respectively magnetic pole line of demarcation schematic diagram and the magnetic pole distribution map of magnet ring of the present invention.Described magnet ring 21 comprises for the power function region of drive shaft rotation with for recording rotary state and generating the semiotic function region of direction and rate signal.Wherein, described power connection circuit is electrically connected with described power function region; Described sensor signal circuit is electrically connected with described semiotic function region.Wherein, described sensor signal circuit and described semiotic function region electric connection mode are, responded to the line of magnetic induction that semiotic function regional magnetic field produces by the sensing element on sensor signal circuit, the process through signal circuit generates the signal reflecting electric machine rotation state.
Concrete, the magnetic pole line of demarcation 211 of described magnet ring 21 comprises signal magnetic pole line of demarcation 212 and power magnetic pole line of demarcation 213.The magnetic pole line of demarcation 212 in described semiotic function region is parallel with the axis of rotating shaft 22 or become an angle of inclination; The magnetic pole line of demarcation 213 in described power function region is parallel with the axis of rotating shaft 22 or become an angle of inclination.In the present embodiment, the magnetic pole line of demarcation 213 in described power function region becomes an angle of inclination between 0 ~ 30 degree with the axis of rotating shaft 22, and as preferably, this angle of inclination is specifically set as 5 ~ 20 degree.The length in described semiotic function region is greater than 0mm, and is less than or equal to 50% of the total length in power function region and semiotic function region; Preferably, the length range in described semiotic function district is 2 ~ 8mm.When described semiotic function section length is infinitely small, namely during infinite approach 0, can determine that its state is in parallel with the axis of rotating shaft 22 or has certain angle of inclination by the unlimited amplification of length.In the present embodiment, when magnet ring 21 after magnetic, this magnet ring 21 forms four to centrosymmetric magnetic pole.
When machine operation, send current signal to magnet ring power function region by the power connection circuit 121 of substrate 12, thus drive the rotation of this machine shaft 22.Now, record is carried out, by sensor signal circuit 122 by the control appliance beyond recorded information feed back to motor for the rotary state of rotating shaft 22, rotation direction and speed in the semiotic function region of described magnet ring.
Compared to prior art, the present invention by using same magnet ring to magnetize motor power functional area and semiotic function region simultaneously, disposable assembling, workability improve, the activity duration shorten; Without the need to signal section adjustment after assembling, operation station reduces, without the need to special adjustment equipment.
Further, owing to being merged by the magnet ring in the power function region of motor and semiotic function region, the cost with magnetizing coil that designs and produces of magnet ring can therefore be reduced.Meanwhile, because the magnet ring in power function region and semiotic function region merges, the length of motor, volume are reduced, is conducive to the miniaturization of motor, lightweight.
Further, by power connection circuit and transducing signal circuit being arranged on the same substrate, therefore without the need to carrying out independently making production for transducing signal circuit, correspondingly reduce equipment cost investment.
Further, by increasing the positioning element of magnet ring, the precision of the position of magnetizing in magnet ring power function region and semiotic function region is improved, further lifting motor performance.
In order to magnetize to above-mentioned magnet ring, present invention also offers the magnetization method of corresponding motor.Refer to Figure 10, it is the schematic diagram that magnetizes of magnet ring of the present invention.The magnetization method of motor of the present invention, it comprises the following steps:
Step 1 a: magnetizing coil 4 is provided; This coil 4 comprises magnetize part 41 and power of a signal and to magnetize part 42; Concrete, refer to Figure 11, it is the coiling schematic diagram of magnetizing coil of the present invention.The signal of described coil 4 the magnetize coil-winding direction of part 42 of coil-winding direction and this power of part 41 of magnetizing becomes an angle of inclination.
Step 2: have the rotor of magnet ring to put into this magnetizing coil 4 in cover, transient high voltage is connected to magnetizing coil 4; Magnet ring is formed semiotic function region and power function region; Concrete, in the present invention, connect the value range of voltage be: 1500V ~ 3000V.
After having magnetized, the magnetic pole line of demarcation in the semiotic function region of described magnet ring is parallel with the axis of rotating shaft, and the magnetic pole line of demarcation in described power function region is parallel with the axis of rotating shaft or become an angle of inclination.In the present embodiment, the magnetic pole line of demarcation in described power function region becomes an angle of inclination with the axis of rotating shaft, and this angle of inclination is between 0 ~ 30 degree.As preferably, this range of tilt angles is 5 ~ 20 degree.The thickness in described semiotic function region is greater than 0mm, and is less than or equal to 50% of the total length in power function region and semiotic function region, and the length range in this semiotic function district is 2 ~ 8mm.
The present invention is not limited to above-mentioned execution mode, if do not depart from the spirit and scope of the present invention to various change of the present invention or distortion, if these are changed and distortion belongs within claim of the present invention and equivalent technologies scope, then the present invention is also intended to comprise these changes and distortion.
Claims (9)
1. a motor, comprises stator, rotor, substrate and two end caps; Described rotor through stator, and by front and rear cover and the bearing assemble that is arranged on end cap on stator; Described substrate is arranged on stator; It is characterized in that: described rotor comprises rotating shaft and magnet ring, described magnet ring is set in rotating shaft, and this magnet ring comprises for the power function region of drive shaft rotation and the semiotic function region for generating rotary state signal.
2. motor according to claim 1, is characterized in that: the magnetic pole line of demarcation in described semiotic function region is parallel with the axis of rotating shaft, or becomes an angle of inclination; The magnetic pole line of demarcation in described power function region is parallel with the axis of rotating shaft or become an angle of inclination, and it is 0-30 degree.
3. motor according to claim 1 or 2, is characterized in that: described substrate is provided with power connection circuit and sensor signal circuit; Described power connection circuit is electrically connected with described power function region; Described sensor signal circuit is electrically connected with described semiotic function region.
4. motor according to claim 1, is characterized in that: described rotor also comprises a positioning element; Described magnet ring is fixed on rotating shaft axially by this positioning element.
5. motor according to claim 1, is characterized in that: described positioning element is the pad that a center is provided with axis hole, and described pad is set in rotating shaft.
6. motor according to claim 1, it is characterized in that: the length in described semiotic function region is greater than 0mm, and it is less than or equal to 50% of power function region and semiotic function region total length.
7. be applied to a magnetization method for motor as claimed in claim 1, it is characterized in that: comprise the following steps: step 1: a magnetizing coil is provided; This coil comprises two sections of coiler parts, and it is for realizing two sections of different magnetic shapes to same section of magnet ring simultaneously;
Step 2: the rotor being arranged with magnet ring is put into this magnetizing coil, to magnetizing coil connect transient high voltage, magnet ring is magnetized and formed on magnet ring the magnetic circuit for providing semiotic function and power function respectively magnetic shape.
8. the magnetization method of motor according to claim 7, it is characterized in that: in step 1, the signal of described coil coil-winding direction and this power of part coil-winding direction partly of magnetizing of magnetizing is parallel or become an angle of inclination, and this angle of inclination is 0 ~ 30 degree; In step 2, after having magnetized, the magnetic pole line of demarcation in the semiotic function region of described magnet ring is parallel with the axis of rotating shaft, and the magnetic pole line of demarcation in described power function region is parallel with the axis of rotating shaft or become an angle of inclination, and this angle of inclination is 0 ~ 30 degree.
9. the magnetization method of motor according to claim 8, is characterized in that: the length in described semiotic function region is greater than 0mm, and is less than or equal to 50% of power function region and semiotic function region total length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134828.0A CN104753257B (en) | 2015-03-25 | 2015-03-25 | A kind of motor and its magnetization method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134828.0A CN104753257B (en) | 2015-03-25 | 2015-03-25 | A kind of motor and its magnetization method |
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| CN104753257A true CN104753257A (en) | 2015-07-01 |
| CN104753257B CN104753257B (en) | 2017-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510134828.0A Active CN104753257B (en) | 2015-03-25 | 2015-03-25 | A kind of motor and its magnetization method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593810A (en) * | 2021-09-29 | 2021-11-02 | 宁波兴隆磁性技术有限公司 | Encoding magnetizing method for encoding irregular magnetic grid ruler |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11299207A (en) * | 1998-04-17 | 1999-10-29 | Matsushita Electric Ind Co Ltd | Brushless motor |
| JP2001274019A (en) * | 2000-03-24 | 2001-10-05 | Kenwood Corp | Magnetizing device |
| CN2847477Y (en) * | 2005-11-23 | 2006-12-13 | 赵昌苗 | Magnetizing device |
| CN101243598A (en) * | 2005-11-29 | 2008-08-13 | 松下电器产业株式会社 | Motor |
| JP2009278699A (en) * | 2008-05-12 | 2009-11-26 | Tsukasa Denko Kk | Method for manufacturing rotor, rotor, and brushless motor |
| CN201355796Y (en) * | 2009-01-23 | 2009-12-02 | 东明机电（深圳）有限公司 | Brushless DC motor used for suction cleaners |
| CN101617460A (en) * | 2007-03-09 | 2009-12-30 | 松下电器产业株式会社 | Brushless motor |
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2015
- 2015-03-25 CN CN201510134828.0A patent/CN104753257B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11299207A (en) * | 1998-04-17 | 1999-10-29 | Matsushita Electric Ind Co Ltd | Brushless motor |
| JP2001274019A (en) * | 2000-03-24 | 2001-10-05 | Kenwood Corp | Magnetizing device |
| CN2847477Y (en) * | 2005-11-23 | 2006-12-13 | 赵昌苗 | Magnetizing device |
| CN101243598A (en) * | 2005-11-29 | 2008-08-13 | 松下电器产业株式会社 | Motor |
| CN101617460A (en) * | 2007-03-09 | 2009-12-30 | 松下电器产业株式会社 | Brushless motor |
| JP2009278699A (en) * | 2008-05-12 | 2009-11-26 | Tsukasa Denko Kk | Method for manufacturing rotor, rotor, and brushless motor |
| CN201355796Y (en) * | 2009-01-23 | 2009-12-02 | 东明机电（深圳）有限公司 | Brushless DC motor used for suction cleaners |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593810A (en) * | 2021-09-29 | 2021-11-02 | 宁波兴隆磁性技术有限公司 | Encoding magnetizing method for encoding irregular magnetic grid ruler |
| CN113593810B (en) * | 2021-09-29 | 2021-12-03 | 宁波兴隆磁性技术有限公司 | Encoding magnetizing method for encoding irregular magnetic grid ruler |
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| CN104753257B (en) | 2017-08-25 |
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