CN208656672U - Generator excitation unit - Google Patents
Generator excitation unit Download PDFInfo
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- CN208656672U CN208656672U CN201821328431.0U CN201821328431U CN208656672U CN 208656672 U CN208656672 U CN 208656672U CN 201821328431 U CN201821328431 U CN 201821328431U CN 208656672 U CN208656672 U CN 208656672U
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- rectification bridge
- phase rectification
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Abstract
The utility model relates to electrical generator fields, and in particular to a kind of generator excitation unit.The generator excitation unit includes field power supply and three-phase rectification bridge；The first input end of the three-phase rectification bridge and the first output end of field power supply connect, and the second input terminal of three-phase rectification bridge and the second output terminal of field power supply connect, and the third input terminal of three-phase rectification bridge and the third output end of field power supply connect；Bifilar winding is connected between the positive output end and reversed-phase output of the three-phase rectification bridge.
Description
Technical field
The utility model relates to electrical generator fields, and in particular to a kind of generator excitation unit.
Background technique
In the following very long-term, industry restructuring and technology upgrading will be one of main lines that Chinese national economy develops,
The product restructuring of every profession and trade, the improvement of production technology, the technological transformation of facilities, automation and enlarged complete set of equipments
Exploitation use etc. and to require mechanical equipment industry advanced, modernization production equipment is provided, improve the modernization of national economy
Level, while the proposition of national economy sustainable development strategy is come into operation energy-saving, environment-friendly type production equipment as investment
Emphasis, also need mechanical equipment industry provide it is safer, progress production equipment.High-effect and high stability is also hair
One of motor technology developments, therefore constantly develop high-effect, high stability generator has become the main of future market
Trend could take the good opportunity in the following fierce market competition in this way, obtain bigger breakthrough.
Generator principle is that AC rectification is issued by excitation electromotor into the generator amature of direct current supply rotation, is made
It obtains electricity generator stator coil induction and generates voltage, to issue power supply.Diode plays rectified action in rectification circuit.In order to
Protection diode, people often give diodes in parallel or resistors in series.Resistor is general in daily life to be directly known as electricity
Resistance.It is a current limiting element, after resistance is connect in circuit, the resistance value of resistor is fixed usually two pins, it can
Limitation passes through the size of current on its institute's chord road.
Currently, although wire resistor resistance accuracy existing for generator excitation unit is high, due to the magnetic effect of electric current, originally
Body besides electrical resistance, also possesses micro inductance or capacitor, makes its performance and ideal resistor difference.
Summary of the invention
In order to solve the deficiencies in the prior art, the utility model provides a kind of generator excitation unit, the hair
Motor excitation device according to technical solution provided by the utility model,
According to technical solution provided by the utility model, a kind of generator excitation unit, the generator excitation unit packet
Include field power supply and three-phase rectification bridge；The first input end of the three-phase rectification bridge and the first output end of field power supply connect,
Second input terminal of three-phase rectification bridge and the second output terminal of field power supply connect, the third input terminal and excitation of three-phase rectification bridge
The third output end of power supply connects；It is noninductive that two-wire is connected between the positive output end and reversed-phase output of the three-phase rectification bridge
Coil.
Further, the three-phase rectification bridge has multiple, and the positive output end of multiple three-phase rectification bridges is connected, reverse phase
Output end is connected.
Further, the bifilar winding includes first coil and the second coil, the first end of the first coil
It is connected with the first end of the second coil, the second end of first coil connects the positive output end of the three-phase rectification bridge, the second line
The second end of circle connects the reversed-phase output of each three-phase rectification bridge.
Further, including further including iron core, the first coil and the second coil twine the bifilar winding side by side
It is wound on iron core.
From the above as can be seen that generator excitation unit provided by the utility model, has compared with prior art
Following advantages: structure is simple, compact, reasonable, provides a kind of mounting structure of bifilar winding as resistance, noninductive with two-wire
Coil can protect rectifier diodes and make when synchronous motor asynchronous starting instead of original varistor
Play the role of start-up resistor for pure resistance.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of inventive embodiments one.
Fig. 2 is the structural schematic diagram of the utility model bifilar winding.
1. field power supply, 2. three-phase rectification bridges, 3. first input ends, 4. second input terminals, 5. third input terminals, 6. positives
Output end, 7. reversed-phase outputs, 8. bifilar windings, 810. first coils, 820. second coils, 9. iron cores.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with specific embodiment, and
Referring to attached drawing, the utility model is further described.Wherein identical components are presented with like reference characters.It needs
Illustrate, word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to the side in attached drawing
To.The word "inner" used and "outside" refer respectively to the direction towards or away from geometric center of specific component.
As shown in Fig. 1 ~ Fig. 2, the embodiments of the present invention one: a kind of generator excitation unit includes:
Field power supply 1 and three-phase rectification bridge 2；The first input end 3 of the three-phase rectification bridge 2 and the first of field power supply 1
Output end connection, the second input terminal 4 of three-phase rectification bridge 2 are connect with the second output terminal of field power supply 1, three-phase rectification bridge 2
Third input terminal 5 is connect with the third output end of field power supply 1；The positive output end 6 and anti-phase output of the three-phase rectification bridge 2
Bifilar winding 8 is connected between end 7.The bifilar winding 8 includes first coil 810 and the second coil 820, described
The first end of first coil 810 is connected with the first end of the second coil 820, and the second end of first coil 810 connects the three-phase
The positive output end 6 of rectifier bridge 2, the second end of the second coil 820 connect the reversed-phase output 7 of each three-phase rectification bridge 2.
The bifilar winding 8 is including further including iron core 9,820 wound side by side of the first coil 810 and the second coil
On iron core 9.It can be understood that the utility model structure is simple, compact, reasonable, a kind of bifilar winding conduct electricity is provided
The mounting structure of resistance can protect rectifier diodes and same with bifilar winding instead of original varistor
Play the role of start-up resistor as pure resistance when walking motor asynchronous starting.
The embodiments of the present invention two: a kind of generator excitation unit includes:
Field power supply 1 and multiple three-phase rectification bridges 2, the first input end 3 and field power supply of each three-phase rectification bridge 2
1 the first output end connection, the second input terminal 4 of three-phase rectification bridge 2 are connect with the second output terminal of field power supply 1, and three-phase is whole
The third input terminal 5 of stream bridge 2 is connect with the third output end of field power supply 1；
Bifilar winding 8 is connected between the positive output end 6 and reversed-phase output 7 of each three-phase rectification bridge 2；
The positive output end 6 of multiple three-phase rectification bridges 2 is connected, and the reversed-phase output 7 of multiple three-phase rectification bridges 2 is connected.
The bifilar winding 8 includes iron core 9, first coil 810 and the second coil 820,810 He of first coil
Second coil, 820 wound side by side is on iron core 9, and the first end of the first end of the first coil 810 and the second coil 820
It is connected, the second end of the first coil 810 connects the positive output end 6 of the three-phase rectification bridge 2, second coil 820
Second end connect the reversed-phase output 7 of each three-phase rectification bridge 2；In bifilar winding 8, electric current is from first coil
810 second end flows into, followed by the first end of first coil 810 and the first end of the second coil 820, finally from the and line
The second end of circle flows out.In bifilar winding 8, due to first coil 810 and second coil of the wound side by side on iron core 9
820 current direction avoids coil and generates inductance, open so that synchronous motor is asynchronous on the contrary, the magnetic effect of electric current is cancelled out each other
When dynamic, bifilar winding 8 plays the role of start-up resistor as pure resistance.Cause voltage positive and negative anodes anti-extremely in motor operation
When turning, bifilar winding 8 can protect it from shorted diode to be inverted voltage breakdown.
It should be understood by those ordinary skilled in the art that: the foregoing is merely specific embodiment of the utility model and
, it is not intended to limit the utility model, all any modifications within the purport of the utility model, made, change equivalent replacement
Into etc., it should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of generator excitation unit, which is characterized in that the generator excitation unit includes that field power supply (1) and three-phase are whole
It flows bridge (2)；The first input end (3) of the three-phase rectification bridge (2) is connect with the first output end of field power supply (1), and three-phase is whole
The second input terminal (4) of stream bridge (2) is connect with the second output terminal of field power supply (1), the third input terminal of three-phase rectification bridge (2)
(5) it is connect with the third output end of field power supply (1)；The positive output end (6) and reversed-phase output of the three-phase rectification bridge (2)
(7) bifilar winding (8) are connected between.
2. generator excitation unit as described in claim 1, which is characterized in that the three-phase rectification bridge (2) have it is multiple, it is multiple
The positive output end (6) of the three-phase rectification bridge (2) is connected, and reversed-phase output (7) is connected.
3. generator excitation unit as described in claim 1, which is characterized in that the bifilar winding (8) includes first
Coil (810) and the second coil (820), the first end and the first end phase of the second coil (820) of the first coil (810)
Even, the second end of first coil (810) connects the positive output end (6) of the three-phase rectification bridge (2), the second coil (820)
Second end connects the reversed-phase output (7) of each three-phase rectification bridge (2).
4. generator excitation unit as claimed in claim 3, which is characterized in that the bifilar winding (8) includes also wrapping
It includes iron core (9), the first coil (810) and the second coil (820) wound side by side are on iron core (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328431.0U CN208656672U (en) | 2018-08-17 | 2018-08-17 | Generator excitation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821328431.0U CN208656672U (en) | 2018-08-17 | 2018-08-17 | Generator excitation unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208656672U true CN208656672U (en) | 2019-03-26 |
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ID=65790449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821328431.0U Active CN208656672U (en) | 2018-08-17 | 2018-08-17 | Generator excitation unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208656672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109039183A (en) * | 2018-08-17 | 2018-12-18 | 无锡道尔奇拜恩电机有限公司 | Generator excitation unit |
-
2018
- 2018-08-17 CN CN201821328431.0U patent/CN208656672U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109039183A (en) * | 2018-08-17 | 2018-12-18 | 无锡道尔奇拜恩电机有限公司 | Generator excitation unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Compound exciting type brushless motor excilter for automobile Effective date of registration: 20191113 Granted publication date: 20190326 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI DAOERQI BAIEN MOTOR Co.,Ltd. Registration number: Y2019990000520 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221206 Granted publication date: 20190326 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI DAOERQI BAIEN MOTOR Co.,Ltd. Registration number: Y2019990000520 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Generator excitation device Effective date of registration: 20221210 Granted publication date: 20190326 Pledgee: Agricultural Bank of China Limited by Share Ltd. Wuxi science and Technology Branch Pledgor: WUXI DAOERQI BAIEN MOTOR Co.,Ltd. Registration number: Y2022320010791 |