CN204304744U - The two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type - Google Patents
The two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type Download PDFInfo
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- CN204304744U CN204304744U CN201420703094.4U CN201420703094U CN204304744U CN 204304744 U CN204304744 U CN 204304744U CN 201420703094 U CN201420703094 U CN 201420703094U CN 204304744 U CN204304744 U CN 204304744U
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Abstract
The utility model discloses the two Permanent-magnets mono-phase no-brush synchronous generator of a kind of low speed totally enclosed type, this generator is included in the totally enclosed seal chamber enclosed in casing and the outer ventilation circuit receiving cavity enclosed outside casing, and rotating shaft is placed in the two ends that casing is extended in seal chamber and its two ends; The combined stator of main generator and compensated dynamo, permanent magnet excitation machine stator, permanent magnetism main generator rotor, offset electricity generation machine rotor, permanent magnet excitation armature rotor and internal fan is mounted with in seal chamber; Interior radiation air paths is formed with internal fan after all inside multiple first ventilation hole slot of punching press of stator punching cylindrical of combined stator and permanent magnet excitation machine stator; Often form the stator partition of stator winding between adjacent two the first ventilation hole slots; Outer ventilation circuit receiving cavity is mounted with and rotates AVR, voltage signal rotation sensor and external fan.The ventilation hole slot of the stator punching that the utility model is special and the reasonable inner and outer air paths design of complete machine, can realize the totally-enclosedization design of generator.
Description
Technical field
The utility model relates to a kind of generator, particularly relates to the two Permanent-magnets mono-phase no-brush synchronous generator of a kind of low speed totally enclosed type.
Background technology
In order to improve the reliability of mobile power station, to the extra high occasion of reliability requirement, propose mobile power station low speed to improve the reliability requirement of mobile power station.But electric exciting brushless synchronous generator is in the low speed mobile power station of low capacity, the relatively more serious and heat of the heating of its rotor not easily distributes, and rotor temperature rise is difficult to reach a standard.If make totally enclosed type generator, its heat radiation is just more difficult.So, yet there are no >=totally-enclosed electric exciting brushless the synchronous generator of the low speed low capacity (≤50KW) of 2P=8 both at home and abroad.
Adopt the pure brushless, permanently synchronous generator of rare earth permanent magnet, because rotor heating is little, the totally-enclosed no-brush synchronous generator of low speed low capacity can be realized.But because its voltage is non-adjustable, uncontrollable, by the impact of prime mover rotating speed size and load and character, electrical power generators quality is very poor, can not meet the needs of power supply quality.So, also come out without this series products at present.
Utility model content
For the weak point existed in above-mentioned technology, the utility model provides the low speed totally enclosed type that a kind of volume is little, lightweight, temperature rise is low and electricity function index is excellent two Permanent-magnets mono-phase no-brush synchronous generator.
For achieving the above object, the utility model provides a kind of low speed totally enclosed type two Permanent-magnets mono-phase no-brush synchronous generator, be included in the totally enclosed seal chamber enclosed in casing and the outer ventilation circuit receiving cavity enclosed outside casing, described rotating shaft is placed in seal chamber and its two ends are extended outside the two ends of casing;
The combined stator of main generator and compensated dynamo, permanent magnet excitation machine stator, permanent magnetism main generator rotor, offset electricity generation machine rotor, permanent magnet excitation armature rotor and internal fan is mounted with in described seal chamber, described permanent magnetism main generator rotor, offset electricity generation machine rotor are arranged on the lower end of combined stator, and described permanent magnet excitation machine stator is connected with permanent magnet excitation armature rotor; Interior radiation air paths is formed with internal fan after all inside multiple first ventilation hole slot of punching press of stator punching cylindrical of described combined stator and permanent magnet excitation machine stator; Often form the stator partition of stator winding between adjacent two the first ventilation hole slots;
Described outer ventilation circuit receiving cavity is mounted with and rotates AVR, voltage signal rotation sensor and external fan, and rotation AVR and voltage signal rotation sensor are all placed in the below of external fan;
Described permanent magnet excitation armature rotor is electrically connected with permanent magnetism main generator rotor by rotation AVR and offset electricity generation machine rotor successively.
Wherein, the excircle of the rotor punching of described offset electricity generation machine rotor is distributed with even number double wedge, and often forms air duct between adjacent two double wedges.
Wherein, the top punching press of each double wedge has the arc shape catch of the bottom being greater than double wedge, and the even punching press of the edge of catch has multiple second ventilation hole slot.
Wherein, the seal chamber of this casing is enclosed by the support be connected successively, front end housing, rotating shaft and rear end cap and forms.
Wherein, outer the placing along the axle center of rotating shaft on described rotor punching is evenly provided with multiple thermal vias.
Wherein, the both sides of each stator partition become concave inward structure distribution.
Wherein, described permanent magnetism main generator rotor is made of one piece by a slice rotor sheet, and this rotor sheet center is provided with the axle center of rotating shaft, and this rotor is provided with even number of poles hole, and each magnetic pole hole is all embedded with magnet steel, and the polarity of adjacent two magnet steel is contrary.
Wherein, this generator also comprises external fan cover, encloses this outer ventilation circuit receiving cavity after described external fan cover is fixedly connected with casing.
Wherein, described front end housing and rear end cap are made by ferrous materials, and described support is made up of aluminum material, and described permanent magnetism main generator rotor is made up of the neodymium iron boron of 150 DEG C, and described permanent magnet excitation machine stator is made up of the neodymium iron boron of 120 DEG C.
The beneficial effects of the utility model are: compared with prior art, the two Permanent-magnets mono-phase no-brush synchronous generator of the low speed totally enclosed type that the utility model provides, generator designs is become outer ventilation circuit receiving cavity and totally enclosed seal chamber, by combined stator, permanent magnet excitation machine stator, permanent magnetism main generator rotor, offset electricity generation machine rotor, permanent magnet excitation armature rotor is all placed in totally-enclosed space, and form interior radiation air paths with internal fan after all inside multiple first ventilation hole slot of punching press of stator punching cylindrical, this structure is dispelled the heat to totally-enclosed space by radiation air paths in independent, timely and effectively the heat of rotor can be distributed, this design can make rotor heating amount very little, and compensate excitation link because having, the voltage of generator can be made adjustable, controlled, reach generator powered quality better and customer power supply requirement can be met, meanwhile, rotate the external outer ventilation circuit design of AVR, voltage signal rotation sensor and external fan, the design of ventilation hole slot of special stator punching and the reasonable wind path design of complete machine, totally-enclosedization that can realize generator designs.The design of inside and outside two wind path heat radiation in the utility model, makes this generator have following characteristics:
1) stator and rotor temperature rise is lower, achieves low speed, totally-enclosedization of low capacity no-brush synchronous generator well;
2) good electric property, steady state voltage regulation≤± 2.5%, irregularity of wave form≤5%;
3) efficiency is high, higher by 5 ~ 8% than same capacity electric excitation generator;
4) rotating AVR is placed in outside seal chamber, convenient maintenance and replacement;
5) little, lightweight, the good reliability of volume.
Accompanying drawing explanation
Fig. 1 is the structural representation of the two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type of the present utility model;
Fig. 2 is electrical schematic diagram of the present utility model;
Fig. 3 is the structure chart of stator punching in the utility model;
Fig. 4 is the structure chart of conventional electric power generation motor stator punching;
Fig. 5 is the structure chart of the offset electricity generation machine rotor of 2P=8 in the utility model;
Fig. 6 is the structure chart of the permanent magnetism main generator rotor of 2P=8 in the utility model.
Main element symbol description is as follows:
10, casing 11, rotating shaft
12, outer ventilation circuit receiving cavity 13, seal chamber
14, combined stator 15, permanent magnet excitation machine stator
16, permanent magnetism main generator rotor 17, offset electricity generation machine rotor
18, permanent magnet excitation armature rotor 19, internal fan
20, AVR 21, voltage signal rotation sensor is rotated
22, external fan 23, external fan cover
131, support 132, front end housing
133, rear end cap 134, fore bearing
135, rear bearing 141, stator punching
161, rotor sheet 162, axle center
163, N pole magnet steel 164, S pole magnet steel
171, rotor punching 1411, first ventilation hole slot
1412, stator partition 1711, double wedge
1712, air duct 1713, catch
1714, the second ventilation hole slot 1715, thermal vias.
Embodiment
In order to more clearly state the utility model, below in conjunction with accompanying drawing, the utility model is further described.
Refer to Fig. 1-2, the two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type of the present utility model, be included in casing 10 the totally enclosed seal chamber 13 enclosed and the outer ventilation circuit receiving cavity 12 enclosed outside casing 10, rotating shaft 11 is placed in seal chamber 13 and its two ends are extended outside the two ends of casing 10;
The combined stator 14 of main generator and compensated dynamo, permanent magnet excitation machine stator 15, permanent magnetism main generator rotor 16, offset electricity generation machine rotor 17, permanent magnet excitation armature rotor 18 and internal fan 19 is mounted with in seal chamber 13, permanent magnetism main generator rotor 16, offset electricity generation machine rotor 17 are arranged on the lower end of combined stator 14, and permanent magnet excitation machine stator 15 is connected with permanent magnet excitation armature rotor 18; Interior radiation air paths is formed with internal fan after all inside multiple first ventilation hole slot of punching press of stator punching cylindrical of combined stator 14 and permanent magnet excitation machine stator 15; Often form the stator partition of stator winding between adjacent two the first ventilation hole slots; The both sides of each stator partition become concave inward structure distribution;
Outer ventilation circuit receiving cavity 12 is mounted with and rotates AVR20, voltage signal rotation sensor 21 and external fan 22, and rotation AVR20 and voltage signal rotation sensor 21 are all placed in the below of external fan 22; External fan 22 forms the outer air duct of this generator, is distributed the heat rotating AVR20, voltage signal rotation sensor 21 works generation by this outer air duct;
Permanent magnet excitation armature rotor 18 is electrically connected with permanent magnetism main generator rotor 16 by rotation AVR20 and offset electricity generation machine rotor 17 successively;
This generator also comprises external fan cover 23, and external fan cover 23 encloses this outer ventilation circuit receiving cavity 12 after being fixedly connected with casing 10.
As shown in Figure 2, be combined radiation air paths in being formed after all inside multiple first ventilation hole slot 1411 of punching press of stator punching 141 cylindrical of combined stator 14 with internal fan 19, can distribute the heat of fully closed seal chamber internal rotor; In order to meet the needs of wind path in totally-enclosed generator, the stator punching of stator in this generator is designed to the special construction of an outer round belt ventilation hole groove; Fig. 4 is the stator punching figure of conventional electric generators, without ventilation hole slot on its cylindrical.The both sides of each stator partition 1412 become concave inward structure distribution, and the winding of this stator partition 1412 adopts F class F insulation.
Compared to the situation of prior art, the two Permanent-magnets mono-phase no-brush synchronous generator of the low speed totally enclosed type that the utility model provides, generator designs becomes outer ventilation circuit receiving cavity 12 and totally enclosed seal chamber 13, by combined stator 14, permanent magnet excitation machine stator 15, permanent magnetism main generator rotor 16, offset electricity generation machine rotor 17, permanent magnet excitation armature rotor 18 is all placed in totally-enclosed space, and form interior radiation air paths with internal fan 19 after all inside multiple first ventilation hole slot of punching press of stator punching cylindrical, this structure is dispelled the heat to totally-enclosed space by radiation air paths in independent, timely and effectively the heat of rotor can be distributed, this design can make rotor heating amount very little, and compensate excitation link because having, the voltage of generator can be made adjustable, controlled, reach generator powered quality better and customer power supply requirement can be met, meanwhile, rotate the external outer ventilation circuit design of AVR, voltage signal rotation sensor and external fan, the design of ventilation hole slot of special stator punching and the reasonable wind path design of complete machine, totally-enclosedization that can realize generator designs.The design of inside and outside two wind path heat radiation in the utility model, makes this generator have following characteristics:
1) stator and rotor temperature rise is lower, achieves low speed, totally-enclosedization of low capacity no-brush synchronous generator well;
2) good electric property, steady state voltage regulation≤± 2.5%, irregularity of wave form≤5%;
3) efficiency is high, higher by 5 ~ 8% than same capacity electric excitation generator;
4) rotating AVR is placed in outside seal chamber, convenient maintenance and replacement;
5) little, lightweight, the good reliability of volume.
Please consult Fig. 5 further, the excircle of the rotor punching 171 of offset electricity generation machine rotor 17 is distributed with even number double wedge 1711, and often forms air duct 1712 between adjacent two double wedges 1711.The design of this air duct 1712, becomes to have the form of radiator structure, is distributed, further increase the area of dissipation of interior wind path by the heat of air duct 1712 to this offset electricity generation machine rotor 17 by rotor design itself.The top punching press of each double wedge 1711 has the arc shape catch 1712 of the bottom being greater than double wedge 1711, and the even punching press of the edge of catch 1712 has multiple second ventilation hole slot 1714, outer the placing along the axle center of rotating shaft 11 on rotor punching 171 is evenly provided with multiple thermal vias 1715.Thermal vias 1715, second ventilation hole slot 1714 further increases area of dissipation.And the design of catch 1712, increase the intensity of this rotor, make this rotor in rotation process, not easily produce the frangible phenomenon such as to fracture.
Please consult Fig. 1 further, the seal chamber 13 in this casing 10 is enclosed by the support 131 be connected successively, front end housing 132, rotating shaft 11 and rear end cap 133 and forms.Certainly; the concrete structure of seal chamber 13 is not limited in this case; as long as execution mode combined stator 14, permanent magnet excitation machine stator 15, permanent magnetism main generator rotor 16, offset electricity generation machine rotor 17, permanent magnet excitation armature rotor 18 be placed in totally enclosed seal chamber 13 can be realized; all belong to and distortion or conversion are answered to the letter of this case, fall in the protection range of this case.
In the present embodiment, permanent magnetism main generator rotor 16 is made of one piece by a slice rotor sheet 161, this rotor sheet 161 center is provided with the axle center 162 of rotating shaft 11, and this rotor is provided with even number of poles hole, and each magnetic pole hole is all embedded with magnet steel, and the polarity of adjacent two magnet steel is contrary, two magnet steel are N pole magnet steel 163 and S pole magnet steel 164, N pole magnet steel 163 is identical with the shape of S pole magnet steel 164, so just serves the effect of generator amature.And integrated structure makes rotor not easily produce the frangible phenomenon fractureed.
In the present embodiment, front end housing 132 and rear end cap 133 are made by ferrous materials, and support 131 is made up of aluminum material, and permanent magnetism main generator rotor 16 is made up of the neodymium iron boron of 150 DEG C, permanent magnet excitation machine stator 15 is made up of the neodymium iron boron of 120 DEG C, and offset electricity generation machine rotor 17 winding adopts H class F insulation; Stator and support adopt hot cover process.
Operation principle of the present utility model is: generator is under prime mover drags, when reaching rated speed left and right, permanent magnetism main generator sends the floating voltage exceeding rated voltage, permanent magnet excitation machine also sends for exciting exciting voltage, rotate AVR and be subject to generator floating voltage higher than after rated voltage (or other voltages of adjusting) by signal rotation transducer, by adjustment supply to the exciting current of compensated dynamo, the voltage of generator is made to get back to rated voltage (or other voltages of adjusting), reconcile the potentiometer of generator, generator voltage can be adjusted on the position of required rated voltage (or other voltages of adjusting).After generator adds load, rotate AVR experience the change of the voltage after loading and supply will be regulated to the exciting current of compensated dynamo, make terminal voltage get back near rated voltage (or other voltages of adjusting), maintain terminal voltage constant, reach the object of constant generator voltage.
By structure of the present utility model, the generator of preparation, for single-phase 12KW ~ 8P, its nominal parameter is as follows:
Rated power: 12KW rated frequency: 60HZ
Rated voltage: 220V number of poles: 2P=8
Power factor: 0.9(is delayed) rated speed: 900r/min
Rated current: the 60.6A class of insulation: F/H=is fixed/turns
The number of phases: single-phase voltage regulation: ± 2.5%
From above-mentioned data, agree find out that the generator efficiency of this structural design is high, electric performance stablity, steady state voltage regulation are moderate.
The utility model, owing to have employed the composite excitation technology of two permanent magnetism, can realize the low speed of low capacity no-brush synchronous generator; The composite excitation technology of two permanent magnetism, can make rotor heating amount very little, and compensates excitation link because having, and the voltage of generator can be made adjustable, controlled, generator powered quality better, can meet customer power supply requirement; Have employed again the reasonable wind path design of special stator laminating structure design and complete machine, totally-enclosedization of generator can be realized.
Be only several specific embodiment of the present utility model above, but the utility model is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection range of the present utility model.
Claims (9)
1. the two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type, it is characterized in that, be included in the totally enclosed seal chamber enclosed in casing and the outer ventilation circuit receiving cavity enclosed outside casing, rotating shaft is placed in seal chamber and its two ends are extended outside the two ends of casing;
The combined stator of main generator and compensated dynamo, permanent magnet excitation machine stator, permanent magnetism main generator rotor, offset electricity generation machine rotor, permanent magnet excitation armature rotor and internal fan is mounted with in described seal chamber, described permanent magnetism main generator rotor, offset electricity generation machine rotor are arranged on the lower end of combined stator, and described permanent magnet excitation machine stator is connected with permanent magnet excitation armature rotor; Interior radiation air paths is formed with internal fan after all inside multiple first ventilation hole slot of punching press of stator punching cylindrical of described combined stator and permanent magnet excitation machine stator; Often form the stator partition of stator winding between adjacent two the first ventilation hole slots;
Described outer ventilation circuit receiving cavity is mounted with and rotates AVR, voltage signal rotation sensor and external fan, and rotation AVR and voltage signal rotation sensor are all placed in the below of external fan;
Described permanent magnet excitation armature rotor is electrically connected with permanent magnetism main generator rotor by rotation AVR and offset electricity generation machine rotor successively.
2. the two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type according to claim 1, it is characterized in that, the excircle of the rotor punching of described offset electricity generation machine rotor is distributed with even number double wedge, and often forms air duct between adjacent two double wedges.
3. the two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type according to claim 2, it is characterized in that, the top punching press of each double wedge has the arc shape catch of the bottom being greater than double wedge, and the even punching press of the edge of catch has multiple second ventilation hole slot.
4. the two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type according to claim 1, it is characterized in that, the seal chamber of this casing is enclosed by the support be connected successively, front end housing, rotating shaft and rear end cap and forms.
5. the two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type according to claim 2, it is characterized in that, outer the placing along the axle center of rotating shaft on described rotor punching is evenly provided with multiple thermal vias.
6. the two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type according to claim 1, is characterized in that, the both sides of each stator partition become concave inward structure distribution.
7. the two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type according to claim 1, it is characterized in that, described permanent magnetism main generator rotor is made of one piece by a slice rotor sheet, this rotor sheet center is provided with the axle center of rotating shaft, and this rotor is provided with even number of poles hole, and each magnetic pole hole is all embedded with magnet steel, and the polarity of adjacent two magnet steel is contrary.
8. the two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type according to claim 1, it is characterized in that, this generator also comprises external fan cover, encloses this outer ventilation circuit receiving cavity after described external fan cover is fixedly connected with casing.
9. the two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type according to claim 4, it is characterized in that, described front end housing and rear end cap are made by ferrous materials, described support is made up of aluminum material, described permanent magnetism main generator rotor is made up of the neodymium iron boron of 150 DEG C, and described permanent magnet excitation machine stator is made up of the neodymium iron boron of 120 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420703094.4U CN204304744U (en) | 2014-11-21 | 2014-11-21 | The two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420703094.4U CN204304744U (en) | 2014-11-21 | 2014-11-21 | The two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type |
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| Publication Number | Publication Date |
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| CN204304744U true CN204304744U (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420703094.4U Expired - Fee Related CN204304744U (en) | 2014-11-21 | 2014-11-21 | The two Permanent-magnets mono-phase no-brush synchronous generator of low speed totally enclosed type |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377930A (en) * | 2014-11-21 | 2015-02-25 | 深圳市安托山特种机械有限公司 | Low-speed totally-closed type double-permanent-magnet single-phase brushless synchronous generator |
-
2014
- 2014-11-21 CN CN201420703094.4U patent/CN204304744U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377930A (en) * | 2014-11-21 | 2015-02-25 | 深圳市安托山特种机械有限公司 | Low-speed totally-closed type double-permanent-magnet single-phase brushless synchronous generator |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20191121 |