CN2062132U - Electronic inverting type d.c motor - Google Patents
Electronic inverting type d.c motor Download PDFInfo
- Publication number
- CN2062132U CN2062132U CN 90202288 CN90202288U CN2062132U CN 2062132 U CN2062132 U CN 2062132U CN 90202288 CN90202288 CN 90202288 CN 90202288 U CN90202288 U CN 90202288U CN 2062132 U CN2062132 U CN 2062132U
- Authority
- CN
- China
- Prior art keywords
- motor
- electronic
- commutator
- inverting
- signal generator
- 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.)
- Withdrawn
Links
- 238000004804 winding Methods 0.000 claims abstract description 12
- 238000007493 shaping process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model discloses an electronic inverting DC motor, which solves the problems of the generation of mechanical wear and electrical spark for the sliding contact of the brush and the commutator segment of the surface of the commutator existing in the present DC electric motor. The electronic communicated DC motor is mainly characterized in that the ends of the motor shaft are respectively provided with an inverting signal generator which can coaxially revolve with the electronic inverting DC motor. The high frequency modulation signal which is output by the inverting signal generator controls the switch-on sequence and frequency of an electronic switch, and the DC power supply of the electronic switch is input into the stator winding of the inverting signal generator, which makes the stator winding of the inverting signal generator work. The electronic inverting dc motor keeps the mechanical property of existing dc electric motors. Compared with existing DC motors, the electronic inverting DC motor has advantages of simple structure, small volume, big power, no brush, etc.
Description
A kind of DC motor.
Traditional DC motor, magnetic pole are positioned on the support, the armature of rotation, are rotor, link to each other with DC power supply by commutator and its surface brush with the spring pressing.Because the commutator segment sliding contact of brush and commutator face, produce mechanical wear and electric spark, therefore, after one section use, commutator face oxidation, fineness descend, make contact resistance increase, temperature between commutator and the brush increase, damage easily, and damage is very difficult to the reparation of device, influences normally to use.
The utility model purpose under the prerequisite of protecting advantages such as the torque of positive direct-current electric motor starting is big, good speed adjustment features, provides a kind of and replaces the present mechanical switching device of being made up of several commutator segments with electronic commutator; And the armature that will rotate originally changes the magnetic field of rotation into, and the magnetic pole that is fixed in originally on the support changes the stator winding that is connected with alternating current into, by the electronic commutated DC motor of commutation signal generator and related circuit control.
The utility model technical solution:
To have the dc motor rotor structure now changes into: the magnetic pole that links to each other with brush by slip ring is (for small-sized DC motor, rotor can be a permanent magnet poles, can save slip ring and brush this moment, promptly do not need excitation), i.e. synchronous motor rotor structure (can be salient pole formula or hidden pole type); With the fixing magnetic pole of existing direct current drive machine stator, change the stator winding that is connected with alternating current into.The parameter of this alternating current is decided by to be placed on the commutation signal generator of the non-output of machine shaft, and this commutation signal generator architecture is: two rotor wheel with the coaxial rotation of rotating shaft respectively have a rotor wheel magnetic core on it; Be connected with the commutator primary coil of high-frequency current, the commutator secondary coil of generation modulation signal and magnetic core are as electronic commutation signal generator stator winding.
Such scheme constitutes electronic commutated DC motor.Its running is in two steps: at first, high frequency voltage (after amplifier amplifies) by oscillator output, on the commutator primary coil, produce high-frequency current, after electromagnetic coupled, induce high-frequency modulation signal at the commutator secondary coil, this signal is after related circuit is handled, conducting or by corresponding electronic switch, DC power supply is added on the corresponding stator winding according to certain rules, make its generation and rotor shift to an earlier date 90 ° rotating magnetic field, attract the rotor rotation; Secondly, after the rotor rotation, the rotor magnetic core that is positioned on the rotor wheel changes the magnetic resistance of commutation signal generator, relative change commutator is first, the inductance value of inferior utmost point winding, and the high frequency modulated amplitude-modulated signal that the commutator secondary coil is exported changes corresponding electronic switch conducting makes DC motor work in proper order.
The utility model advantage:
1, starting torque is big, and speed adjustable range is wide, and speed governing is level and smooth, does not produce load or burden without work with electrical network, so power saving.
2, since the heat dispersion on the stator winding than existing DC motor rotating armature perfect heat-dissipating, so volume can reduce, and power can increase.
3, this product is best suited for the microminiature direct current machine, because the microminiature direct current machine does not need excitation, directly manufactures rotor with permanent magnetic material, can be made into brushless DC motor.
Below in conjunction with description of drawings the utility model most preferred embodiment.
Fig. 1 is the utility model profile.
Fig. 2 is the utility model A-A, B-B, C-C generalized section.
Fig. 3 is the utility model circuit block diagram.
Fig. 4 is the utility model fundamental diagram.Wherein Fig. 4 (a) and Fig. 4 (b) are respectively in the direct current machine running, rotor and two instantaneous position figure that take turns with its coaxial rotor.
In Fig. 1-4,1 rotor wheel magnetic core, 2 rotor wheel, 3 magnetic cores, 4 commutators are coil, 5 commutator secondary coils, 6 commutator shells, 7 slip rings, 8 brushes, 9 brush holders, 10 slip ring seats, 11 bearings, 12 stator cores, 13 stator winding, 14 rotor cores, 15 magnet exciting coils, 16 armature spindles, 17,19,20 end caps, 18 supports, 21 screws, 22 springs, 23 magnet exciting coils lead-in wire, 24 commutation signal generators lead-in wire (2 in primary coil lead-in wire, 12 in secondary coil lead-in wire), 25 high-frequency generators, 26 amplifiers, 27 shaping amplification circuits, SW just
1～SW
6Electronic switch, C electric capacity.D, e, f, g, h, i are respectively commutation signal generator forward secondary coil A
, B
, C
Output, j, k, m, n, p, q are respectively commutation signal generator negative sense secondary coil A
, B
, C
Output.In addition, the rotor wheel magnetic core 1 on two rotor wheel 2, its center line is all on same rotor axis; Corresponding with two rotor wheel 2, be connected with the elementary winding parallel connection of two cover commutators of high-frequency current, and connect between three groups of commutator primary coils 4 of every cover.
Below in conjunction with description of drawings the utility model most preferred embodiment.
The high-frequency current of high-frequency generator 25 outputs, after amplifier 26 amplifies, be input on the commutator primary coil 4, simultaneously on commutator secondary coil 5, induce high frequency voltage, since in the commutation signal generator, the rotor wheel magnetic core 1 on the rotor wheel 2, and its determining positions is in the magnitude of voltage of the commutator secondary coil 5 corresponding with it, therefore, rotor wheel magnetic core 1 diverse location makes the commutator corresponding with it positive and negative to inferior coil output (A
, B
, C
, A
, B
C
), export different magnitudes of voltage, when this magnitude of voltage reached the threshold voltage of corresponding shaping amplifier, this shaping amplifier had pulse voltage output, made corresponding electronic switch conducting (as the electronic switch SW among Fig. 4 (a)
1, SW
2, SW
6Conducting; SW among the figure (b)
2, SW
6Conducting), at this moment, DC power supply E imports alternating current through corresponding electronic switch to motor stator winding, makes its generation and rotor shift to an earlier date 90 ° rotating magnetic field, attracts the rotor rotation.After the rotor rotation, be positioned at the also coaxial rotation of rotor wheel of the non-output of rotating shaft, rotor magnetic core on the rotor wheel changes the magnetic resistance in the commutator, change the inductance value of the primary and secondary coil of commutator relatively, the high frequency modulated amplitude-modulated signal that the commutator secondary coil is exported changes corresponding electronic switch conducting order, makes direct current machine work.
Claims (2)
1, a kind of electronic commutated DC motor of forming by stator, rotor and electronic commutator, the described commutation signal generator of its feature:
A, with two rotor wheel 2 of rotating shaft 16 coaxial rotations, a rotor wheel magnetic core 1 is respectively arranged on it;
B, the commutator primary coil 4 that is connected with high-frequency current produce the commutator secondary coil 5 of high-frequency am signals and magnetic core 3 stator as the commutation signal generator.
2, electronic commutated DC motor according to claim 1, its feature:
Rotor wheel magnetic core 1 on a, two rotor wheel 2, its center line is all on same rotor axis;
B, the elementary winding parallel connection of two cover commutators corresponding with two rotor wheel 2, that be connected with high-frequency current, and series connection between three groups of commutator primary coils 4 of every cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90202288 CN2062132U (en) | 1990-02-28 | 1990-02-28 | Electronic inverting type d.c motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90202288 CN2062132U (en) | 1990-02-28 | 1990-02-28 | Electronic inverting type d.c motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2062132U true CN2062132U (en) | 1990-09-12 |
Family
ID=4883723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90202288 Withdrawn CN2062132U (en) | 1990-02-28 | 1990-02-28 | Electronic inverting type d.c motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2062132U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088516A (en) * | 2018-09-20 | 2018-12-25 | 冉隆春 | A kind of energy-saving direct-current motor that stall is not burnt |
| CN114094790A (en) * | 2021-11-03 | 2022-02-25 | 熵零技术逻辑工程院集团股份有限公司 | An inductive storage motor |
| CN114614628A (en) * | 2022-03-25 | 2022-06-10 | 曲建国 | Energy output device based on mutual inductance principle |
-
1990
- 1990-02-28 CN CN 90202288 patent/CN2062132U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109088516A (en) * | 2018-09-20 | 2018-12-25 | 冉隆春 | A kind of energy-saving direct-current motor that stall is not burnt |
| CN109088516B (en) * | 2018-09-20 | 2023-07-14 | 冉隆春 | Energy-saving direct-current motor with dead-stop and unfired rotor |
| CN114094790A (en) * | 2021-11-03 | 2022-02-25 | 熵零技术逻辑工程院集团股份有限公司 | An inductive storage motor |
| CN114614628A (en) * | 2022-03-25 | 2022-06-10 | 曲建国 | Energy output device based on mutual inductance principle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |