CN108696082A - Wide speed brushless generator - Google Patents
Wide speed brushless generator Download PDFInfo
- Publication number
- CN108696082A CN108696082A CN201710259067.0A CN201710259067A CN108696082A CN 108696082 A CN108696082 A CN 108696082A CN 201710259067 A CN201710259067 A CN 201710259067A CN 108696082 A CN108696082 A CN 108696082A
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- CN
- China
- Prior art keywords
- generator
- brushless
- rotary transformer
- rectifier
- rotary
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/16—Synchronous generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K19/00—Synchronous motors or generators
- H02K19/16—Synchronous generators
- H02K19/26—Synchronous generators characterised by the arrangement of exciting windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
Abstract
The present invention provides a kind of wide fast brushless generator, it is mainly made of rotary pole formula synchronous generator, silicon rectifier, pulse (or switch) adjuster, rotary transformer, rotating rectifier etc..Rotary pole formula synchronous generator exports alternating current, and direct current is exported by silicon rectifier.Impulse regulator exports the height of DC voltage according to silicon rectifier, to the adjustable pulse of rotary transformer output duty cycle, mutual induction electromotive force is generated in rotary transformer secondary, then become direct current through rotating rectifier, it is added in the Exciting Windings for Transverse Differential Protection of rotary pole formula synchronous generator, realizes brushless excitation.The advantages that wide speed brushless generator has low speed good (zero amp frequency is low), and the range of speeds is wide, and volume, weight are smaller, and cost is relatively low.
Description
Technical field
The present invention relates to a kind of automobile-used silicon rectifying brushless alternating current generators, belong to electric motor of automobile field.
Background technology
Alternator for vehicle is the main power source of motor vehicles, and driving comfortable safety to vehicle is of great importance.Existing vehicle
Be substantially brush silicon rectification AC generator with generator, due to being sliding contact between brush, slip ring, necessarily cause friction,
Abrasion, and have resistance heat, electric spark between electric brush slip ring, therefore there is such as rotating speed cannot be too high, discomfort should have dust, extreme tide
Wet, extreme temperature environment, height above sea level is also restricted, and the graphite powder under wearing destroys insulation life, and brush wear is to centainly
The insurmountable problems such as degree electrical power generators are unstable or do not generate electricity, and maintenance capacity is big.
In order to avoid the above problem of brush, slip ring, brushless AC generator comes into being.But existing brushless ac
Generator:Lundell, exciter formula, magneto and inductor type), because reasons in structure also has deficiency compared with brushing hair motor:
Low speed is poor (zero amp frequency is high), and the range of speeds is small, and volume, weight are larger, and cost is higher.It is existing brushless ac hair below
Motor there are the problem of.
The present invention provides a kind of automobile-used brushless generator, it has low speed good (zero amp frequency is low), can run at high speed,
The advantages that volume, weight are smaller, and cost is relatively low.
Invention content
The present invention reaches above-mentioned purpose in this way:Brush, slip ring is replaced to realize non-connect using rotary transformer, rotating rectifier
It touches and transmits exciting current.
Wide speed brushless generator is mainly by rotary pole formula synchronous generator 1, rotary transformer 2, rotating rectifier 3, arteries and veins
The compositions such as punching (or switch) adjuster 5, silicon rectifier 4, electric appliance cover 6, are shown in attached drawing 1,2.Primary iron core (the magnetic of rotary transformer 2
Core) it is fixed on electric motor end cap, armature winding is connected with the output of pulse (or switch) adjuster;Rotary transformer secondary iron
Core, winding and rotating rectifier are fixed on motor shaft and rotate together.
Rotary transformer 2, rotating rectifier 3, pulse (or switch) adjuster 5 constitute brushless excitation system;Pulse (or open
Closing) adjuster exports the height of DC voltage according to silicon rectifier, and the pulse different to rotary transformer output duty cycle revolving
Turn transformer secondary output and generate electromotive force, then become direct current through rotating rectifier, is added in the Exciting Windings for Transverse Differential Protection of synchronous alternating-current generator, it is real
Existing brushless excitation;Synchronous generator exports alternating current, and direct current is exported by silicon rectifier.Attached drawing 3 is wide fast brushless generator
Electrical block diagram.
The impulse regulator of brushless excitation system, rotary transformer, rotating rectifier combination are either monofocal:
Positive activation type, inverse-excitation type can also be double-end type:Push-pull type, bridge-type.
Rotary transformer uses the column structure (attached drawing 4) of radial air gap, can stablize some axial small plays
Work.
Setting heat dissipation hole slot, wire lead slot on the magnetic core of rotary transformer, easy for installation, reliability improves.
The present invention has the following advantages compared with existing brushless ac synchronous generator:
1, the wide rotary transformer of the range of speeds can transmit electric energy under any rotating speed, and axial dimension is small, and rotor is rigid
Property it is big, dynamic balancing is easy, therefore the range of speeds is wide.
2, small, light-weight rotary transformer is more small than exciter, light-weight, if using high frequency, volume is more
Small, weight is lighter;The range of speeds is wide, motor it is small, light-weight.
3, the high existing generator of reliability, once adjuster power tube short circuit, rotor windings one lead directly to constant direct current,
Generator output voltage is very high when high speed, damage generator, electrical equipment.Wide speed brushless generator, even adjuster power
Tube short circuit (output direct current), since rotary transformer can only transmit exchange, generator excitation winding does not have electric current, will not lead to height
Generator output voltage is very high when fast, damage generator, electrical equipment.
4, cost is relatively low since rotating transformer structures are simple, small, and light-weight, material consumption is few, and manufacturing process is held
Easily, therefore entire generator cost is relatively low.
Description of the drawings
Attached drawing 1 --- wide speed brushless electricity generator structure schematic diagram (entirety).
1 --- rotary pole formula synchronous generator, 2 --- rotary transformer, 3 --- rotating rectifier, 4 --- silicon rectifier,
5 --- pulse (switch) adjuster.
Attached drawing 2 --- the structural schematic diagram (decomposition) of wide speed brushless generator.
1 --- rotary pole formula synchronous generator, 2 --- rotary transformer, 3 --- rotating rectifier, 4 --- silicon rectifier,
5 --- pulse (switch) adjuster, 6 --- electric appliance cover.
Attached drawing 3 --- the circuit diagram of wide speed brushless generator
1 --- rotary pole formula synchronous generator, 2 --- rotary transformer, 3 --- rotating rectifier, 4 --- rectifier,
5 --- pulse (or switch) adjuster.
Attached drawing 4 --- the structural schematic diagram of radial air gap rotary transformer
1 --- outer magnetic core, 2 --- outer winding, 3 --- inner magnetic core, 4 --- interior winding 5 --- heat emission holes (slot), 6 --- lead
Slot.
Specific implementation mode
Position feelings of the wide speed brushless generator because of brushless excitation system, silicon rectifier relative to synchronous alternating-current generator
Condition can be divided into two kinds of forms:Externally positioned type and internally-arranged type.Externally positioned type, this is that brushless excitation system, silicon rectifier are placed in alternative electric generation
Form in generator terminal lid, as shown in Figure 1, 2.Rotary transformer 2, rotating rectifier 3, pulse (or switch) adjuster 5, silicon rectifier
For devices 4 etc. all outside synchronous generator end cap, electric appliance cover 6 protects them.The primary iron core (magnetic core) of rotary transformer 2 is fixed on electricity
Generator terminal covers, and armature winding is connected with the output of pulse (or switch) adjuster 5 (being also secured on electric motor end cap), rotates transformation
Secondary iron core, winding and the rotating rectifier 3 of device 2, which are fixed on motor shaft, to be rotated together.
As shown in figure 3, impulse regulator exports the height of DC voltage according to silicon rectifier, accounted for rotary transformer output
Sky generates mutual induction electromotive force than different pulses, in rotary transformer secondary, then becomes direct current through rotating rectifier, is added in exchange
The Exciting Windings for Transverse Differential Protection of synchronous generator realizes brushless excitation.
Internally-arranged type, this is the form that brushless excitation system, silicon rectifier are placed in alternator end cover.
Although the present invention has delivered, and is described its preferred concrete scheme, it is familiar with the technology of the technology
Personnel are appreciated that:In the case of the scope and spirit of the present invention determined without prejudice to the claims, it can make each
Kind change and distortion.
Claims (4)
1. wide speed brushless generator, is made of rotary pole formula synchronous alternating-current generator, silicon rectifier, brushless excitation system,
It is characterized in that:Brushless excitation system is made of pulse (or switch) adjuster, rotary transformer, rotating rectifier;Rotary pole
Formula synchronous generator exports alternating current, and direct current is exported by silicon rectifier;Pulse (or switch) adjuster is according to silicon rectifier
The height of DC voltage is exported, the pulse different to rotary transformer output duty cycle generates electronic in rotary transformer secondary
Gesture, then become direct current through rotating rectifier, it is added in the Exciting Windings for Transverse Differential Protection of synchronous alternating-current generator, realizes brushless excitation.
2. wide fast brushless generator according to claim 1, which is characterized in that the pulse (or switch) in brushless excitation system is adjusted
Device, rotary transformer, rotating rectifier relationship are saved either monofocal:Positive activation type, inverse-excitation type can also be double-end type:It pushes away
Pull, bridge-type.
3. according to the wide fast brushless generator of claim 1, which is characterized in that the rotary transformer, using radial air gap
Column structure.
4. according to the wide fast brushless generator of claim 1, which is characterized in that heat dissipation is arranged on the magnetic core of the rotary transformer
Hole slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259067.0A CN108696082A (en) | 2017-04-11 | 2017-04-11 | Wide speed brushless generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710259067.0A CN108696082A (en) | 2017-04-11 | 2017-04-11 | Wide speed brushless generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108696082A true CN108696082A (en) | 2018-10-23 |
Family
ID=63843593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710259067.0A Pending CN108696082A (en) | 2017-04-11 | 2017-04-11 | Wide speed brushless generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108696082A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113037009A (en) * | 2021-03-11 | 2021-06-25 | 芜湖宏宇汽车电子有限责任公司 | Range extender brushless generator with auxiliary starter and control method |
-
2017
- 2017-04-11 CN CN201710259067.0A patent/CN108696082A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113037009A (en) * | 2021-03-11 | 2021-06-25 | 芜湖宏宇汽车电子有限责任公司 | Range extender brushless generator with auxiliary starter and control method |
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