CN100449914C - Method for making brushless DC velocity measuring dynamo - Google Patents
Method for making brushless DC velocity measuring dynamo Download PDFInfo
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- CN100449914C CN100449914C CNB2006102009862A CN200610200986A CN100449914C CN 100449914 C CN100449914 C CN 100449914C CN B2006102009862 A CNB2006102009862 A CN B2006102009862A CN 200610200986 A CN200610200986 A CN 200610200986A CN 100449914 C CN100449914 C CN 100449914C
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- tachogenerator
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Abstract
This invention discloses one integral brushless direct speed test motor and its process method, which imbeds with motor set and speed motor set to make brushless direct motor and brushless speed motor, have same rotor ad main excitation steel. This invention adopts electron switch to take place traditional mechanism to realize brushless direct motor current switch and to realize continuous rotation to output voltage signals.
Description
Technical field:
The present invention relates to a kind of brushless DC velocity measuring dynamo and preparation method thereof, belong to the tachogenerator technical field.
Background technology:
At present, tachogenerator of the prior art generally adopts fabricated structure, promptly generally adopt brushless motor and have the brush tachogenerator to be combined to form the tachogenerator group, perhaps adopt brushless motor to become the tachogenerator group with alternator combination, the tachogenerator group of this fabricated structure is because the former has adopted the brush tachogenerator, and weak point, while may produce the shortcoming of spark and interference therefore to exist useful life; And the latter needs the extra turn signal that increases because the output voltage of its alternating current generator can't reflect direction of rotation, therefore exists the structure more complicated, and service behaviour also lacking of less stable
The point; In addition, existing fabricated structure tachogenerator group also exists big, the cost of manufacture problem of higher of volume.
Summary of the invention:
The objective of the invention is: provide little, the simple and compact for structure and cost of manufacture of a kind of volume than the end, brushless DC velocity measuring dynamo that service behaviour is more stable and preparation method thereof, to overcome the deficiencies in the prior art.
The present invention is achieved in that
The manufacture method of brushless DC velocity measuring dynamo of the present invention is: it has embedded motor winding and tachogenerator winding simultaneously in the stator coring groove of brushless DC motor, makes shared same stator core of brushless DC motor and brushless DC tachogenerator and same rotor and same main pole excitation magnet steel.
A kind of brushless DC velocity measuring dynamo that adopts method of the present invention to make is: it comprises the brushless DC motor that is provided with stator core 5 and rotor 6, main pole magnet steel 7 is installed on rotor 6, embedded motor winding 1 and the tachogenerator winding 3 of being placed with of groove in the stator core 5 of brushless DC motor, and on the end cap 8 of brushless DC motor, position transducer 9 is installed, on rotor 6, is fixed with and follows the tracks of magnet steel 10.
Fixing by slot wedge 4 in the groove of the stator core 5 of brushless DC motor has slot liner body 2, and motor winding 1 and tachogenerator winding 3 embed in slot liner body 2.
Motor winding 1 is a three-phase Y type winding, and tachogenerator winding 3 is six phase windings.
Owing to adopted technique scheme, the present invention embeds motor winding and tachogenerator winding simultaneously in stator coring groove, with brushless DC motor and the shared stator core of brushless DC tachogenerator, shared main pole excitation magnet steel, common location transducer.Adopt this structure can greatly dwindle the volume of unit, except in stator coring groove, increasing by a cover tachogenerator winding, do not have to add any other structure, therefore simplified the structure of traditional tachogenerator group greatly, and greatly reduced cost of manufacture; In addition, the present invention substitutes traditional mechanical commutation with electronic commutation and realizes that the current switching of brushless DC motor and the voltage signal of brushless DC tachogenerator switch, and make motor realize the voltage signal that continuous rotation makes tachogenerator output be proportional to rotating speed and turn to simultaneously.Brushless DC motor working method of the present invention and common brushless motor class
Seemingly, be alternating current and the brushless actuator generator winding sends, adopt electronic analog swtich to turn to the gating that carries out positive level or negative level then according to it, be spliced into and be proportional to the VD that turns to rotating speed, thereby realized that non-contact type changes
To.Therefore, the present invention compared with prior art, the present invention not only has volume advantage little, simple and compact for structure, but also at the bottom of having a cost of manufacture, the advantage of stable work in work.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is that motor winding of the present invention and tachogenerator winding embed the structural representation in stator coring groove;
Accompanying drawing 3 is a control circuit schematic block diagram of the present invention.
Embodiment:
Embodiments of the invention: can adopt in the stator coring groove of brushless DC motor, to have embedded motor winding and being made into one of tachogenerator method of winding brushless DC tachogenerator simultaneously, make shared same stator core of its brushless DC motor and brushless DC tachogenerator and same rotor and same main pole excitation magnet steel.
When adopting being made into one of method brushless DC tachogenerator of the present invention, can adopt the existing brushless DC motor that is provided with stator core 5 and rotor 6 to make, its brushless DC motor can adopt the structure of 4 pairs of utmost points, 24 grooves, making
The time, press traditional approach main pole magnet steel 7 is installed on rotor 6, then at the embedded motor winding 1 and the tachogenerator winding 3 put of groove of the stator core 5 of brushless DC motor, in that the groove of the stator core 5 of brushless DC motor is embedded when putting motor winding 1 and tachogenerator winding 3, preferably earlier motor winding 1 and tachogenerator winding 3 are embedded in slot liner body 2, and then by slot wedge 4 slot liner body 2 is fixed and to go up in the groove of the stator core 5 of brushless DC motor, preferably motor winding 1 is turned to three-phase Y type winding by traditional mode, tachogenerator winding 3 is turned to six phase windings, because not required power output of tachogenerator, as long as guarantee manufacturability, so can select very thin enamelled wire for use, so the space that the tachogenerator winding accounts in groove is very little, almost can not consider the influence to copper factor; On the end cap 8 of brushless DC motor, install three-phase position transducer 9, this three-phase position transducer can adopt traditional Hall integrated circuit, on fixing on the rotor 6, follow the tracks of magnet steel 10, and making tracking magnet steel 10 when turning to the position of position transducer 9 with rotor 6, this position transducer 9 can be sensed the magnet steel signal; Output signal with position transducer 9 is passed to an electronic commutation logical operation circuit 11 and an electronic analog switch circuit 12 respectively then, the universal circuit that the electronic commutation logical operation circuit can be selected for use is very many, the circuit of the mc33035 model of producing as Motorola Inc., and the model on the market that electronic analog switch circuit can be selected for use is also more, can two voltage power supplies and satisfy that output requires but must select for use, as the ceiling voltage scope that requires to export is ± 12V, just must selection work voltage at ± circuit 12V more than, selecting the model of Harri company production in the present embodiment for use is that eight of HI-548 selects an electronic analog switch circuit; The signal of telecommunication of electronic commutation logical operation circuit 11 outputs is received the three-phase bridge power amplification circuit 13 of a routine, and make the dc signal of these three-phase bridge power amplification circuit 13 outputs be passed to motor winding 1; The signal of telecommunication of tachogenerator winding 3 also is input to electronic analog switch circuit 12, and the output signal of telecommunication of electronic analog switch circuit 12 is received the input of an amplification filtering circuit 14, the signal of telecommunication that the output of this amplification filtering circuit 14 is exported is exactly the dc signal of expression tachogenerator rotating speed, amplification filtering circuit 14 preferably adopts the high speed and precision amplifier structure second-order active filter circuit of selling on the market, can reach extraordinary filter effect like this.
Operation principle of the present invention is: its three-phase position transducer is according to position relation feedback three road mutual deviations of stator and rotor
The square wave signal of telecommunication of 120 ° of electrical degrees, 180 ° of electrical degrees of pulsewidth, the square wave signal of telecommunication of 60 ° of electrical degrees of output six road mutual deviations, 120 ° of electrical degrees of pulsewidth after this square wave signal of telecommunication process electronic commutation logical operation circuit computing, the switch of six power transistors of this six road square waves signal of telecommunication control three-phase bridge power amplification circuit, thereby make motor three phase windings according to certain time sequence work, the rotation of drive motors rotor; At this moment, six phase tachogenerator windings are output six road ac signals under the rotating magnetic field excitation, this six road ac signal is the flat-top trapezoidal wave signal of telecommunication with certain width, this flat-top trapezoidal wave signal of telecommunication be input to eight select an electronic analog switch circuit after, square-wave signal coding gating through the three-phase transducer, at the different out of phase flat parts of sequential gating six phase windings, every sequential gating width is 60 ° of electrical degrees, motor six time sequence status that rotated a circle, the six states gating that circulates successively, thereby be spliced into a DC level, after this DC level is passed through amplification filtering circuit suitable amplification and filtering, i.e. feedback motor speed that output meets the demands and the dc signal that turns to.
Claims (5)
1. the manufacture method of a brushless DC velocity measuring dynamo, it is characterized in that: in the stator coring groove of brushless DC motor, embedded motor winding and tachogenerator winding simultaneously, made shared same stator core of brushless DC motor and brushless DC tachogenerator and same rotor and same main pole excitation magnet steel.
2. brushless DC velocity measuring dynamo, it comprises the brushless DC motor that is provided with stator core (5) and rotor (6), main pole magnet steel (7) is installed on rotor (6), it is characterized in that: at the embedded motor winding (1) and the tachogenerator winding (3) of being placed with of groove of the stator core (5) of brushless DC motor, and on the end cap (8) of brushless DC motor, position transducer (9) is installed, on rotor (6), is fixed with and follows the tracks of magnet steel (10).
3. brushless DC velocity measuring dynamo according to claim 2, it is characterized in that: fixing by slot wedge (4) in the groove of the stator core (5) of brushless DC motor has slot liner body (2), and motor winding (1) and tachogenerator winding (3) embed in slot liner body (2).
4. brushless DC velocity measuring dynamo according to claim 2 is characterized in that: motor winding (1) is a three-phase Y type winding, and tachogenerator winding (3) is six phase windings.
5. brushless DC velocity measuring dynamo according to claim 2, it is characterized in that: position transducer (9) is exported the signal of telecommunication respectively to electronic commutation logical operation circuit (11) and electronic analog switch circuit (12), electronic commutation logical operation circuit (11) the output signal of telecommunication is to three-phase bridge power amplification circuit (13), and three-phase bridge power amplification circuit (13) the output signal of telecommunication is to motor winding (1); The signal of telecommunication of tachogenerator winding (3) also is input to electronic analog switch circuit (12), and electronic analog switch circuit (12) the output signal of telecommunication is to the input of amplification filtering circuit (14), the output output DC signal of amplification filtering circuit (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006102009862A CN100449914C (en) | 2006-10-12 | 2006-10-12 | Method for making brushless DC velocity measuring dynamo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006102009862A CN100449914C (en) | 2006-10-12 | 2006-10-12 | Method for making brushless DC velocity measuring dynamo |
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| Publication Number | Publication Date |
|---|---|
| CN1929266A CN1929266A (en) | 2007-03-14 |
| CN100449914C true CN100449914C (en) | 2009-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006102009862A Expired - Fee Related CN100449914C (en) | 2006-10-12 | 2006-10-12 | Method for making brushless DC velocity measuring dynamo |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684399A (en) * | 2011-03-15 | 2012-09-19 | 佛山市合普电机有限公司 | Axial fixing device for fingered sensor on motor |
| CN102222990A (en) * | 2011-06-09 | 2011-10-19 | 许晓华 | Improved stator structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3532510A1 (en) * | 1985-09-12 | 1987-03-19 | Thalheim Tachometerbau Kg | Three-phase tachogenerator |
| EP0548611A1 (en) * | 1991-12-20 | 1993-06-30 | Licentia Patent-Verwaltungs-GmbH | Electric motor with tachogenerator |
| CN2142202Y (en) * | 1992-07-28 | 1993-09-15 | 机械电子工业部西安微电机研究所 | Magnetoelectric pulse speed indicating generator |
| CN2268337Y (en) * | 1996-02-17 | 1997-11-19 | 吴文达 | high-power ac. arc-welding generator |
| CN2330104Y (en) * | 1998-04-28 | 1999-07-21 | 赵连义 | Multifunctional three-phase asynchronous motor |
| CN2381061Y (en) * | 1998-12-09 | 2000-05-31 | 宁波东方通用电气公司西安分公司 | Speed-position measuring integrated sensor for rare earth permanent-magnet brush-less dc. motor |
| CN1328377A (en) * | 2000-06-12 | 2001-12-26 | 万德明 | Two-in-one dynamo-electric machine |
| CN200969555Y (en) * | 2006-10-12 | 2007-10-31 | 中国江南航天工业集团林泉电机厂 | Integrated brushless DC measurement generator |
-
2006
- 2006-10-12 CN CNB2006102009862A patent/CN100449914C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3532510A1 (en) * | 1985-09-12 | 1987-03-19 | Thalheim Tachometerbau Kg | Three-phase tachogenerator |
| EP0548611A1 (en) * | 1991-12-20 | 1993-06-30 | Licentia Patent-Verwaltungs-GmbH | Electric motor with tachogenerator |
| CN2142202Y (en) * | 1992-07-28 | 1993-09-15 | 机械电子工业部西安微电机研究所 | Magnetoelectric pulse speed indicating generator |
| CN2268337Y (en) * | 1996-02-17 | 1997-11-19 | 吴文达 | high-power ac. arc-welding generator |
| CN2330104Y (en) * | 1998-04-28 | 1999-07-21 | 赵连义 | Multifunctional three-phase asynchronous motor |
| CN2381061Y (en) * | 1998-12-09 | 2000-05-31 | 宁波东方通用电气公司西安分公司 | Speed-position measuring integrated sensor for rare earth permanent-magnet brush-less dc. motor |
| CN1328377A (en) * | 2000-06-12 | 2001-12-26 | 万德明 | Two-in-one dynamo-electric machine |
| CN200969555Y (en) * | 2006-10-12 | 2007-10-31 | 中国江南航天工业集团林泉电机厂 | Integrated brushless DC measurement generator |
Non-Patent Citations (4)
| Title |
|---|
| 一种新型直流测速机－电子换向无刷直流测速发电机. 谭建成等.电气应用，第09期. 1984 |
| 一种新型直流测速机－电子换向无刷直流测速发电机. 谭建成等.电气应用，第09期. 1984 * |
| 新型机电一体化方波无刷直流测速发电机. 王民生.微电机，第29卷第01期. 1996 |
| 新型机电一体化方波无刷直流测速发电机. 王民生.微电机，第29卷第01期. 1996 * |
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| CN1929266A (en) | 2007-03-14 |
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