CN204810102U - Permanent -magnet machine rotor -position detects and sensor installation device with adjustable - Google Patents
Permanent -magnet machine rotor -position detects and sensor installation device with adjustable Download PDFInfo
- Publication number
- CN204810102U CN204810102U CN201520416817.7U CN201520416817U CN204810102U CN 204810102 U CN204810102 U CN 204810102U CN 201520416817 U CN201520416817 U CN 201520416817U CN 204810102 U CN204810102 U CN 204810102U
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- motor
- magnetic pole
- sensor
- back cover
- printed board
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Abstract
The utility model provides a detection and the sensor installation device of adjustable permanent -magnet machine rotor -position, is including trailing the magnetic pole, printing board and backshell. Following the tracks of the magnetic pole and compriseing support and permanent magnet, Q235 -A materials processing becomes the flange disk of shaft coupling shape for the support, at the side of ring flange processing annular groove, bonds to inlay in the recess and puts the permanent magnet, and its polarity is unanimous with the rotor magnetic pole. The tracking magnetic pole passes through the key -type connection with the motor shaft and follows the rotor synchronous revolution, reflects the position of electric motor rotor magnetic pole in step. Weld sensor ( hall element ) on the printing board, the quantity of sensor and the position that the circumference distributes confirm according to motor looks scalar sum number of poles that the printing board is through supporting with the fix with screw in the backshell. The shell rotates together afterwards. The backshell passes through tang and rear end cap cooperation location. Processing has the arc mounting hole of 3 30 angle scopes on the backshell, makes the backshell rotate at 30 angle within range circumferencial directions to motion sensor's position. Owing to the device installs in the outside of motor, can separate with the motor main part, consequently can not dismantle the motor, or even adjusting the position of sensor under the circumstances of experimental incessantly motor for the sensor is simpler, convenient, rapid, safety in the aspect of installation, adjustment and change etc.
Description
Art
The utility model relates to a kind of permanent magnet machine rotor position probing and installation device of sensor, and particularly a kind of adjustable permanent-magnet motor rotor position detects and installation device of sensor.
The utility model is particularly useful for work, the detecting apparatus for rotor position of agricultural production with middle-size and small-size magneto and the installation of transducer.
Background technology
Magneto has the plurality of advantages such as volume is little, speed governing convenient, noise is low, efficiency is high, energy-conserving and environment-protective and has been widely used in miniature control field and the industry such as electric bicycle, electric automobile as driving.Along with coming out one after another and the development of magneto technology of novel permanent magnetic material, the particularly breakthrough development of the design theory of magneto, computational methods, structural manufacturing process and control technology, the power of magneto is improved constantly, seat No. also constantly expands, and therefore magneto have also been obtained large-scale popularization in the field such as work, agricultural production.
Permanent magnet machine rotor adopts surface mount permanent magnet or embedded permanent magnet as magnetic pole, be as the criterion really existing commutation, position of sound production trigger position transducer (Hall element) corresponding with stator coil phase symbolic animal of the birth year on stator is needed to carry out detection rotor position of magnetic pole, and rotor-position signal is delivered to the control element of controller, then the break-make being controlled power supply switch tube (IGBT) by control element is to realize the commutation of motor.
Originally, what we adopted is be placed in by Hall element in motor stator core groove, namely when motor stator coil, Hall element is placed in stator rabbet and compresses with slot wedge, be presented axially in core center position, then carry out dipping lacquer process, thus by Hall element fixation.The method does not need to change electric machine structure, does not increase motor component, simple to operate, convenient.But find to there is following problem in actual use:
1, owing to adding Hall element in partial stator groove, the copper factor of this groove is increased, inserts to slot wedge and bring difficulty.
2, after Hall element is put well, when inserting slot wedge, easily making the position of Hall element change, easily damaging Hall element when inserting slot wedge simultaneously.
3, need hyperthermia drying after stator dipping, very easily make Hall element heat damage.In addition, after stator dipping, stator coil, Hall element become as a whole with stator core, once the position of Hall element is improper or Hall element damages, cannot carry out adjusting and changing.
4, after motor assembling, Hall element, at motor internal, also needs to open motor even if can change, makes troubles to maintenance.
Summary of the invention
In order to solve the problem, the utility model provides that a kind of Hall element is easy for installation, and position is adjustable, changes and is easy to permanent magnet machine rotor position probing and installation device of sensor.This device can regulate transducer in the angle of circumferencial direction to determine optimum position in motor rotation situation, and mark is carried out in this position, is convenient to change.
The utility model solves the technical scheme that its technical problem adopts:
As shown in Figure 1, cutaway view as shown in Figure 2 for the utility model permanent magnet machine rotor position probing and installation device of sensor rearview.
The utility model is arranged on the afterbody of magneto, is made up of motor body, tracking magnetic pole, printed board, back cover.Follow the tracks of magnetic pole to be made up of permanent magnet, tracking pole bracket.Following the tracks of magnetic pole is arranged on motor shaft, with motor synchronous rotary.Hall element is installed in printed board, and is fixed in back cover.Back cover is positioned motor rear end by seam and covers, and back cover flange has the arc installing hole of 30 ° of scopes, is convenient to circumferencial direction and rotates with the position regulating transducer.
It is characterized in that: follow the tracks of pole bracket and make ring flange shape, machined grooves on the end face of support, permanent magnet is bonded in the groove of tracking pole bracket, and the magnetizing direction of magnetic pole is that axially its polarity is consistent with mair motor polarity.Transducer is welded in printed board, and its radius is consistent with tracking pole center radius, and its distribution plane is parallel with tracking pole plane.The back cover installing printed board is connected with end cap by seam, and fixing hole is processed into the arc within the scope of 30 °, and after loosening set bolt, back cover can rotate under the effect of external force within the scope of circumferencial direction 30 °.
The beneficial effects of the utility model are:
1, transducer (Hall) is welded in printed board, and easy for installation, position is accurate.
2, transducer (Hall) is no longer with motor paint-dipping drying, is also no longer squeezed in motor slot, reduces the probability of damage, safe and reliable.
3, transducer (Hall) is arranged on the outside of motor, only need pull down shell, then pull down printed board during replacing, need not dismounting motor again, convenient and swift.
4, transducer can rotate with back cover, is convenient to the position regulating transducer.Adjusting position is accurate, implementation process safety, convenient, fast.
5, achieve sensing station in motor not stall situation to regulate, decrease the start-stop time of motor, avoid the motor damage that the frequent starting because of motor causes, save regulating time.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and enforcement, the utility model is further illustrated.
Fig. 1, Fig. 2 are the utility model permanent magnet machine rotor position probing and installation device of sensor structure rearview and cutaway view respectively.
Fig. 3, Fig. 4 are that the utility model follows the tracks of field structure rearview and cutaway view respectively.
Fig. 5 is the utility model printed board front view.
Fig. 6, Fig. 7 are rearview and the half sectional view of the processing of the utility model back cover respectively.
Each parts title in figure: 1-back end cover for motor, 2-bolt, 3-packing ring, 4-back cover, 5-screw, 6-packing ring, 7-printed board fixed support, 8-printed board, 9-follows the tracks of magnetic pole, 10-shaft block ring, 11-motor shaft, 12-key, 13-aviation socket.14-permanent magnet, 15-follows the tracks of pole bracket, 16-transducer (Hall element), 17-printed board
Embodiment
In order to make the technical solution of the utility model and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is elaborated.Should be appreciated that, specific embodiment described herein only in order to explain the utility model, and is not used in restriction the utility model.
1, concrete production and processing of the present utility model and assembling process
(1), the tracking pole bracket Q235-A of Fig. 3 and Fig. 4 processes, its upper shaft hole is processed with keyway, be connected with motor shaft by key, the side plane of support is processed with circular groove, adhesive permanent magnetism body in groove, permanent magnet is axial charging, aligns with key slot center line in the line of demarcation of N, S pole of permanent magnet, to ensure that the polarity of following the tracks of magnetic pole is consistent with the polarity of rotor.
(2), the printed board of Fig. 5 is processed by 1mm epoxy resin bonded fiber 3240, the size of its inside and outside circle is determined according to the permanent magnet average diameter of the tracking magnetic pole of Fig. 3 and Fig. 4, consistent with the diameter of permanent magnet to ensure the radial position of transducer (Hall), and ensure certain intensity.Be welded in printed board by transducer (Hall), quantity and the circle distribution angle beta of transducer (Hall) are determined according to the number of phases of motor and number of poles.
(3), the back cover Q235-A Plate Welding of Fig. 6 and Fig. 7, the process of welding after annealing, the seam that process aft-loaded airfoil coordinates with rear end cap and seam end face, this seam is that matched in clearance is to facilitate the rotation of bonnet with coordinating of rear end cap.This seam and seam end face are used for ensureing back cover and the radial position accuracies of axle and the perpendicularity with axle.The plane of printed board and 3 uniform installation screws are installed in processing.The circular arc installing hole of the fixing back cover of processing on mounting flange, this installing hole is distributed within the scope of 30 °, and back cover can be made freely to rotate within the scope of circumference 30 °.
(4), Fig. 1 and Fig. 2 be after motor body has assembled, Fig. 3 with Fig. 4 followed the tracks of magnetic pole and be connected by key and be contained on motor shaft, and fix with shaft block ring.To be welded with the printed board of transducer (Hall) by being supported and fixed in back cover, the height of support ensures that the rear transducer (Hall) of back cover assembling is 2mm with the distance of tracking pole plane.The lead wire of transducer (Hall) is welded in the respective terminal of aviation socket.Back cover after assembling is fixed on motor rear end cover, uses bolt fixation.
2, the embody rule of the utility model in the debug process of motor
During debugging test after motor assembling, motor is docked by shaft coupling with prime mover, and is fixed on testing stand, actuating motor, and the set bolt of slight loosening back cover, can rotate with back cover and be advisable.Slowly rotate back cover, the signal spread out of by transducer, determine the optimum position of back cover, position tights a bolt after determining and makes back cover fixation, simultaneously on back cover and rear end cap, carries out alignment marker, be convenient to back cover tear open after installation again.
Conclusion:
2.2 ~ 30kW magneto that my company produces all adopts this device, good effect is achieved in the production and process of the test of motor, for the production of motor and debugging provide conveniently, save the time, the replacing for transducer also provides fast, effective measures.
Claims (4)
1. an adjustable permanent-magnet motor rotor position detects and installation device of sensor, comprise motor body, the tracking magnetic pole be arranged on motor shaft, the printed board of transducer and the shell of fixed printed board be installed, it is characterized in that, described tracking magnetic pole is with axle synchronous rotary, synchronous reflection motor main rotor position of magnetic pole, described printed board is by screw and be supported and fixed on back cover, adjustment is rotated with back cover, described shell is fixed on the rear end cap of motor by seam location, and shell can be pressed certain angle at circumferencial direction and rotate.
2. a kind of adjustable permanent-magnet motor rotor position according to claim 1 detects and installation device of sensor, it is characterized in that, follow the tracks of magnetic pole to be made up of support and permanent magnet, flange plate type made by support, at the side of support processing circular groove, permanent magnet is pasted onto in groove, with the key slot center line of support endoporus for positioning datum, ensures that the polarity of following the tracks of magnetic pole is consistent with main rotor polarity.
3. a kind of adjustable permanent-magnet motor rotor position according to claim 1 detects and installation device of sensor, it is characterized in that, the installing hole of back cover and rear end cap is processed into the arc of 30 ° of angular ranges, after making back cover be installed to back end cover for motor, can turn 30 ° of angular range inner periphery direction choosings.
4. a kind of adjustable permanent-magnet motor rotor position according to claim 1 detects and installation device of sensor, it is characterized in that, transducer is welded in printed board, printed board is fixed with back cover by supporting, ensure that printed board can be rotated with back cover circumferencial direction, to regulate transducer to optimum position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416817.7U CN204810102U (en) | 2015-06-13 | 2015-06-13 | Permanent -magnet machine rotor -position detects and sensor installation device with adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520416817.7U CN204810102U (en) | 2015-06-13 | 2015-06-13 | Permanent -magnet machine rotor -position detects and sensor installation device with adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204810102U true CN204810102U (en) | 2015-11-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520416817.7U Expired - Fee Related CN204810102U (en) | 2015-06-13 | 2015-06-13 | Permanent -magnet machine rotor -position detects and sensor installation device with adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204810102U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048756A (en) * | 2015-06-13 | 2015-11-11 | 德州恒力电机有限责任公司 | Adjustable permanent magnet motor rotor position detection and sensor installation device |
| CN107884592A (en) * | 2017-12-05 | 2018-04-06 | 广西玉柴机器股份有限公司 | Variable crankshaft rotational speed sensor phase device |
| CN108736681A (en) * | 2017-04-21 | 2018-11-02 | 庄立伟 | DC motor with multiplied torque |
| CN110535293A (en) * | 2018-05-24 | 2019-12-03 | 江苏伯海电驱动科技有限公司 | A kind of permanent magnet synchronous motor with buffer-type revolving speed intelligent speed-control structure |
| CN110892613A (en) * | 2017-07-14 | 2020-03-17 | 三菱电机株式会社 | Rotating electrical machine |
| WO2022110897A1 (en) * | 2020-11-25 | 2022-06-02 | 台州正立电机有限公司 | Device for testing performance of non-inductive control system of permanent magnet motor |
| CN116131538A (en) * | 2022-12-13 | 2023-05-16 | 重庆虎溪电机工业有限责任公司 | High-reliability compact type direct-current brushless motor Hall device |
-
2015
- 2015-06-13 CN CN201520416817.7U patent/CN204810102U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105048756A (en) * | 2015-06-13 | 2015-11-11 | 德州恒力电机有限责任公司 | Adjustable permanent magnet motor rotor position detection and sensor installation device |
| CN108736681A (en) * | 2017-04-21 | 2018-11-02 | 庄立伟 | DC motor with multiplied torque |
| CN110892613A (en) * | 2017-07-14 | 2020-03-17 | 三菱电机株式会社 | Rotating electrical machine |
| CN110892613B (en) * | 2017-07-14 | 2022-02-11 | 三菱电机株式会社 | Rotating electrical machine |
| US11264859B2 (en) | 2017-07-14 | 2022-03-01 | Mitsubishi Electric Corporation | Rotary electric machine |
| CN107884592A (en) * | 2017-12-05 | 2018-04-06 | 广西玉柴机器股份有限公司 | Variable crankshaft rotational speed sensor phase device |
| CN110535293A (en) * | 2018-05-24 | 2019-12-03 | 江苏伯海电驱动科技有限公司 | A kind of permanent magnet synchronous motor with buffer-type revolving speed intelligent speed-control structure |
| WO2022110897A1 (en) * | 2020-11-25 | 2022-06-02 | 台州正立电机有限公司 | Device for testing performance of non-inductive control system of permanent magnet motor |
| CN116131538A (en) * | 2022-12-13 | 2023-05-16 | 重庆虎溪电机工业有限责任公司 | High-reliability compact type direct-current brushless motor Hall device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20160613 |