CN207753577U - It is a kind of can way traffic electromechanical mixing without arc commutating dc motor - Google Patents
It is a kind of can way traffic electromechanical mixing without arc commutating dc motor Download PDFInfo
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- CN207753577U CN207753577U CN201721840287.4U CN201721840287U CN207753577U CN 207753577 U CN207753577 U CN 207753577U CN 201721840287 U CN201721840287 U CN 201721840287U CN 207753577 U CN207753577 U CN 207753577U
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- commutator segment
- afterflow
- motor
- way traffic
- commutator
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Abstract
The utility model provide it is a kind of can way traffic electromechanical mixing commutation without arc direct current generator, the mechanical part of its reversing arrangement includes brush and commutator, commutator includes one or more commutator segment groups, and one of commutator segment group is made of positive pole commutator segment, afterflow commutator segment I, power cathode commutator segment and afterflow commutator segment II；Electronic section is the afterflow buffer circuit that capacitance and diode form.DC power polarity change-over switch is used to ensure that afterflow buffer circuit power supply polarity still to remain unchanged when the direct current power source voltage polarity reversion of power supply, and only power supply commutator segment polarity inverts, to realize mixing reversing motor way traffic.The afterflow buffer circuit of the mixing commutating dc motor of the utility model, which ensure that, not will produce commutation arc, and spark is obviously reduced, and commutator segment quantity needed for commutator is few, simple in structure, of low cost, can way traffic make it have wider application.
Description
Technical field
The utility model is related to design of electrical motor and manufacturing technology field, more particularly to can way traffic electromechanical mixing nothing
Arc commutating dc motor.
Background technology
Currently, the brushed DC motor using mechanical commutation and the brshless DC motor using electronic commutation all have extensively
Application.Mechanical commutation is almost unavoidable, and there are sparks, and very likely generate electric arc；Although electronic commutator is without fire
Flower, but system cost is increased, and control complicated.Therefore, Chinese utility model patent CN106685148A and China are practical new
Type patent CN206294034U " a kind of multiphase DC square-wave motor that electromechanical mixing commutates without arc " proposes a kind of electromechanical mixing
Commutation without arc direct current generator, which does not need additional controller and power electronics becomes using machinery, electronics mixing commutation
Parallel operation, and solve electric arc and spark problems in tradition machinery reversing arrangement.But it is provided to the mixing commutating dc motor reversed
When DC voltage, the diode bridge arm in afterflow buffer circuit can lead directly to so as to cause DC power supply short circuit.So the motor
It positive can only run, and be unable to way traffic
Therefore, be badly in need of it is a kind of can way traffic electromechanical mixing without arc commutating dc motor with overcome subtract direct current generator cannot
The problem of way traffic and dynamic balancing, the maintenance of brush and replacement convenience.
Utility model content
In order to overcome defect existing in the prior art, the utility model aim be to provide it is a kind of can way traffic machine
Without arc commutating dc motor dynamic equilibrium problems are not present, and the maintenance and replacement of brush are convenient in electricity mixing.The motor uses machine
Electricity, which mixes, to commutate, and passes through freewheeling circuit power supply polarity when the direct current power source voltage polarity reversion of increase change-over switch guarantee power supply
It still remains unchanged, only power supply commutator segment polarity inverts, to realize the way traffic of mixing commutating dc motor.
To achieve the goals above, the utility model provides following technical solution.
It is a kind of can way traffic electromechanical mixing without arc commutating dc motor comprising：Stator, rotor and electromechanical mixing are changed
To device；The rotor is spindle rotationally arranged in the space that the stator surrounds, and the electromechanical mixing reversing arrangement setting exists
Between the rotor and the stator；The stator is p to permanent magnet pole, the rotor be Y-connected m phases armature around
Group；It is described can air-gap field and electromotive force of the electromechanical mixing without arc commutating dc motor of way traffic be trapezoidal wave, armature electricity
Stream is square wave；The electromechanical mixing reversing arrangement includes electronic section and mechanical part；
The mechanical part of the electromechanical mixing reversing arrangement includes brush and commutator；Per armature winding described in phase by with
The brush of the rotor rotation is drawn, and adjacent two brushes mutual deviation, 120 ° of mechanical angles, the commutator is fixed according to position of magnetic pole
In stator side, including one or more commutator segment groups；Each the commutator segment group includes：Positive pole commutator segment, afterflow commutation
Piece I, power cathode commutator segment and afterflow commutator segment II；
The electronic section of the electromechanical mixing reversing arrangement is afterflow buffer circuit, including：One buffers capacitance and two
Afterflow bridge arm, each afterflow bridge arm are made of three diodes；
DC power polarity change-over switch is used to ensure that freewheeling circuit to be powered when the direct current power source voltage polarity reversion of power supply
Polarity still remains unchanged, and only power supply commutator segment polarity inverts, to realize the electromechanical mixing without arc communicating DC electricity
Machine way traffic.
Preferably, when positive operation, the positive pole commutator segment connects DC power anode, the power cathode commutation
Piece connects DC power cathode；When inverted running, the positive pole commutator segment connects DC power cathode, the power cathode
Commutator segment connects DC power anode；When forward and reverse is run, the afterflow commutator segment I and the afterflow commutator segment II connection
The diode continuousing flow bridge arm it is constant, freewheeling circuit power polarity it is also constant, the afterflow bridge arm I, II will not be led directly to, and institute
It states afterflow commutator segment I and positive afterflow is all provided when both direction is run, the afterflow commutator segment II all provides reversed afterflow.
Preferably, DC power polarity change-over switch can be realized by relay.
Preferably, DC power polarity change-over switch can be realized by rectifier bridge.
Preferably, in arbitrary number of magnetic pole pairs, the electronic section of reversing arrangement is identical.
Preferably, the positive pole commutator segment, II structure of afterflow commutator segment I, power cathode commutator segment and afterflow commutator segment
At a complete circumference, mica-sheet insulation is set each other and is insulated.
Preferably, the pole N, S of the positive pole commutator segment, negative commutation segment piece difference face permanent magnet.
Preferably, the afterflow commutator segment I, afterflow commutator segment II are separately connected the midpoint of afterflow bridge arm I, II.
The beneficial effects of the utility model are：
Can electromechanical reversing arrangement of the mixing without arc commutating dc motor of way traffic not will produce electric arc, and obviously subtract
Small commutation spark, required commutator segment negligible amounts, commutator structure is simple, of low cost；Additional controller and electricity are not needed
Power electronic converter, saves system cost；Realize way traffic, relative to it is existing can only unidirectional operation mixing commutation it is straight
Galvanic electricity machine has wider application prospect.
Description of the drawings
Fig. 1 is that the utility model can the electromechanical mixing of way traffic when being run without arc direct current generator first embodiment forward direction
Electrical connection diagram.
Fig. 2 be the utility model can way traffic electromechanical mixing without arc direct current generator first embodiment inverted running when
Electrical connection diagram.
Fig. 3 is that the utility model can the electromechanical mixing of way traffic when being run without arc direct current generator second embodiment forward direction
Electrical connection diagram.
Fig. 4 be the utility model can way traffic electromechanical mixing without arc direct current generator second embodiment inverted running when
Electrical connection diagram.
1. brush in figure, 2. commutators, 3. positive pole commutator segments, 4. afterflow commutator segments I, 5. power cathode commutator segments,
6. afterflow commutator segment II, 7. mica insulation sheets, 8. rectifier bridges.
Specific implementation mode
To keep the purpose, technical scheme and advantage that the utility model is implemented clearer, below in conjunction with the utility model
Attached drawing in embodiment, is further described in more detail the technical scheme in the embodiment of the utility model.In the accompanying drawings, from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Described reality
It is the utility model a part of the embodiment to apply example, instead of all the embodiments.Below with reference to the embodiment of attached drawing description
And the word of directionality is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.Below in conjunction with the accompanying drawings to the utility model
Embodiment is described in detail.
In a broad embodiment of the utility model, it is a kind of can way traffic electromechanical mixing without arc communicating DC electricity
Machine comprising：Stator, rotor and electromechanical mixing reversing arrangement；The rotor is spindle rotationally arranged in the sky that the stator surrounds
In, the electromechanical mixing reversing arrangement is arranged between the rotor and the stator；The stator is p to permanent magnet magnetic
Pole, the rotor are Y-connected m phases armature winding；It is described can way traffic electromechanical mixing without arc commutating dc motor
Air-gap field and electromotive force are trapezoidal wave, and armature supply is square wave；The electromechanical mixing reversing arrangement includes electronic section and machine
Tool part；
The mechanical part of the electromechanical mixing reversing arrangement includes brush and commutator；Per armature winding described in phase by with
The brush of the rotor rotation is drawn, and adjacent two brushes mutual deviation, 120 ° of mechanical angles, the commutator is fixed according to position of magnetic pole
In stator side, including one or more commutator segment groups；Each the commutator segment group includes：Positive pole commutator segment, afterflow commutation
Piece I, power cathode commutator segment and afterflow commutator segment II；
The electronic section of the electromechanical mixing reversing arrangement is afterflow buffer circuit, including：One buffers capacitance and two
Afterflow bridge arm, each afterflow bridge arm are made of three diodes；
DC power polarity change-over switch is used to ensure that freewheeling circuit to be powered when the direct current power source voltage polarity reversion of power supply
Polarity still remains unchanged, and only power supply commutator segment polarity inverts, to realize the electromechanical mixing without arc communicating DC electricity
Machine way traffic.
The utility model overcomes existing direct current generator to be unable to way traffic and dynamic balancing, the maintenance of brush and replace just
The problems such as profit.
1-4 further illustrates the utility model below in conjunction with the accompanying drawings.
It is emphasized that following the description is only exemplary, rather than in order to limit the scope of the utility model and
It is applied.
Fig. 1 show can way traffic electromechanical mixing without arc direct current generator first embodiment, pass through brush 1, commutator 2
Electromechanical mixing with afterflow buffer circuit composition is realized without arc reversing arrangement to commutate.Armature rotor is Y-connected three-phase symmetrical
Winding A, B, C are drawn per phase winding by the brush 1 rotated with rotor, adjacent two brush 1 mutual deviation, 120 ° of mechanical angles.Commutation
Device 2 only includes a commutator segment group, by positive pole commutator segment 3, afterflow commutator segment I 4, power cathode commutator segment 5 and afterflow
Commutator segment II 6 constitutes a full circumferences, is insulated each other by mica sheet 7, and positive pole commutator segment 3, negative commutation segment
Piece 5 distinguishes the pole N, S of face permanent magnet.The electronic section of reversing arrangement is made of a set of afterflow buffer circuit, including one slow
Capacitance C and two afterflow bridge arms are rushed, afterflow bridge arm I is by diode D1、D2And D5Composition, afterflow bridge arm II is by diode D3、D4With
D6Composition.Afterflow commutator segment I, afterflow commutator segment II are separately connected the midpoint of afterflow bridge arm I, II.
In DC power polarity U+In the case of being remained unchanged with U-, pass through single-pole double-throw relay K1And K2Realize motor
Direction of rotation controls.Positive pole commutator segment 3 connects single-pole double-throw relay K1, power cathode commutator segment connect single-pole double throw after
Electric appliance K2.Relay K1And K2Two groups of contacts be respectively coupled DC power anode U+With DC power cathode U.In Fig. 1
Shown under relay status, positive pole commutator segment 3 connects DC power anode U+, the connection direct current of power cathode commutator segment 5
Power cathode U, the operation of motor forward direction, direction as shown by the arrows in Figure 1.Under relay status shown in Fig. 2, positive pole
Commutator segment 3 connects DC power cathode U, the connection DC power anode of power cathode commutator segment 5 U+, motor inverted running, such as figure
Direction shown in arrow in 2.But freewheeling circuit is powered, and polarity is constant, and afterflow bridge arm I, II will not be led directly to, and afterflow commutator segment I 4 is still
Positive afterflow is provided, afterflow commutator segment II 6 still provides reversed afterflow.
Fig. 3 and Fig. 4 show can way traffic electromechanical mixing without arc direct current generator second embodiment.DC power polarity
U+And UIt can invert, you can pass through U+>UOr U+<UIt realizes the control of motor direction of rotation, afterflow is kept by rectifier bridge 8
Circuit power supply polarity is constant, avoids afterflow bridge arm I, II straight-through.Under DC power polarity shown in Fig. 3, U+>U, power supply is just
Practical pole commutator segment 3 is positive polarity, and practical power cathode commutator segment 5 is negative polarity, motor forward direction operation, such as arrow institute in Fig. 3
Show direction.Under DC power polarity shown in Fig. 4, U+<U, practical positive pole commutator segment 3 is negative polarity, and power cathode changes
Practical to piece is positive polarity, motor inverted running, direction as shown by the arrows in Figure 4.
It is last it is to be noted that：Above example is only to illustrate the technical solution of the utility model, rather than limits it
System.Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should manage
Solution：Its still can with technical scheme described in the above embodiments is modified, or to which part technical characteristic into
Row equivalent replacement；And these modifications or replacements, various embodiments of the utility model that it does not separate the essence of the corresponding technical solution
The spirit and scope of technical solution.
Claims (8)
1. it is a kind of can way traffic electromechanical mixing without arc commutating dc motor, it is characterised in that including：Stator, rotor and electromechanics
Mix reversing arrangement；The rotor is spindle rotationally arranged in the space that the stator surrounds, the electromechanical mixing reversing arrangement
It is arranged between the rotor and the stator；The stator is p to permanent magnet pole, and the rotor is Y-connected m phases
Armature winding；It is described can air-gap field and electromotive force of the electromechanical mixing without arc commutating dc motor of way traffic be trapezoidal wave,
Armature supply is square wave；The electromechanical mixing reversing arrangement includes electronic section and mechanical part；
The mechanical part of the electromechanical mixing reversing arrangement includes brush and commutator；Armature winding passes through with described described in per phase
The brush of rotor rotation is drawn, adjacent two brushes mutual deviation, 120 ° of mechanical angles, and it is fixed that the commutator is fixed on according to position of magnetic pole
Sub- side, including one or more commutator segment groups；Each the commutator segment group includes：Positive pole commutator segment, afterflow commutator segment I,
Power cathode commutator segment and afterflow commutator segment II；
The electronic section of the electromechanical mixing reversing arrangement is afterflow buffer circuit, including：One buffering capacitance and two afterflows
Bridge arm, each afterflow bridge arm are made of three diodes；
DC power polarity change-over switch is used to ensure freewheeling circuit power supply polarity when the direct current power source voltage polarity reversion of power supply
It still remains unchanged, only power supply commutator segment polarity inverts, double without arc commutating dc motor to realize the electromechanical mixing
To operation.
2. it is according to claim 1 can way traffic electromechanical mixing without arc commutating dc motor, it is characterised in that：It is positive
When operation, the positive pole commutator segment connects DC power anode, and the power cathode commutator segment connects DC power cathode；
When inverted running, the positive pole commutator segment connects DC power cathode, and the power cathode commutator segment connects DC power supply
Anode；When forward and reverse is run, the diode continuousing flow bridge of the afterflow commutator segment I and the afterflow commutator segment II connection
Arm is constant, and freewheeling circuit is powered, and polarity is also constant, and the afterflow bridge arm I, II will not be led directly to, and the afterflow commutator segment I is two
Positive afterflow is all provided when a direction operation, the afterflow commutator segment II all provides reversed afterflow.
3. it is according to claim 2 can way traffic electromechanical mixing without arc commutating dc motor, it is characterised in that：Direct current
Electric power polarity change-over switch can be realized by relay.
4. it is according to claim 2 can way traffic electromechanical mixing without arc commutating dc motor, it is characterised in that：Direct current
Electric power polarity change-over switch can be realized by rectifier bridge.
5. according to described in one of claim 3 or 4 can way traffic electromechanical mixing without arc commutating dc motor, feature exists
In：It is identical in the electronic sections of arbitrary number of magnetic pole pairs, reversing arrangement.
6. it is according to claim 1 can way traffic electromechanical mixing without arc commutating dc motor, it is characterised in that：It is described
Positive pole commutator segment, afterflow commutator segment I, power cathode commutator segment and afterflow commutator segment II constitute a complete circumference, that
Mica-sheet insulation is arranged between this to insulate.
7. it is according to claim 1 can way traffic electromechanical mixing without arc commutating dc motor, it is characterised in that：It is described
The pole N, S of positive pole commutator segment, negative commutation segment piece difference face permanent magnet.
8. it is according to claim 1 can way traffic electromechanical mixing without arc commutating dc motor, it is characterised in that：It is described
Afterflow commutator segment I, afterflow commutator segment II are separately connected the midpoint of afterflow bridge arm I, II.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721840287.4U CN207753577U (en) | 2017-12-25 | 2017-12-25 | It is a kind of can way traffic electromechanical mixing without arc commutating dc motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721840287.4U CN207753577U (en) | 2017-12-25 | 2017-12-25 | It is a kind of can way traffic electromechanical mixing without arc commutating dc motor |
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| Publication Number | Publication Date |
|---|---|
| CN207753577U true CN207753577U (en) | 2018-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721840287.4U Expired - Fee Related CN207753577U (en) | 2017-12-25 | 2017-12-25 | It is a kind of can way traffic electromechanical mixing without arc commutating dc motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888034A (en) * | 2017-12-25 | 2018-04-06 | 清华大学 | It is a kind of can way traffic electromechanical mixing without arc commutating dc motor |
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2017
- 2017-12-25 CN CN201721840287.4U patent/CN207753577U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107888034A (en) * | 2017-12-25 | 2018-04-06 | 清华大学 | It is a kind of can way traffic electromechanical mixing without arc commutating dc motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180821 Termination date: 20211225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |