CN207459848U - A kind of novel efficient synchronous alternating-current generator - Google Patents
A kind of novel efficient synchronous alternating-current generator Download PDFInfo
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- CN207459848U CN207459848U CN201720536216.9U CN201720536216U CN207459848U CN 207459848 U CN207459848 U CN 207459848U CN 201720536216 U CN201720536216 U CN 201720536216U CN 207459848 U CN207459848 U CN 207459848U
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Abstract
The utility model discloses a kind of novel efficient synchronous alternating-current generator, and including stator, rotor and fan, stator periphery is equipped with and gap is reserved between anchor ear and stator and anchor ear；Rotor framework both sides are evenly arranged with several miniature fan blades；Fan includes support plate, axle sleeve and several fan blade, axle sleeve is located at support disk center and is connected with motor shaft, blade uses forward tilt structure, each equal one end of blade is connected to axle sleeve and the other end is outwards dissipated the evenly distributed support plate that is connected to by axle sleeve, the height that the height away from motor shaft one end is higher than close to motor shaft one end on each blade so that entire blade is in two level stairstepping, the relatively low one end of height is level-one blade end on blade, height higher end is two level blade end on blade, the upper edge of level-one blade end and two level blade end is parallel with the disk of support plate.The utility model reduces the loss that temperature rising is brought in generator operation, and heat-sinking capability is stronger, more efficient, and simple with engine assembly.
Description
Technical field
The utility model is related to a kind of motor technologies, and in particular to a kind of novel efficient synchronous alternating-current generator.
Background technology
Synchronous alternating-current generator can drive rotation to generate electricity by petrol engine or diesel engine.Wherein 20kw
Synchronous alternating-current generator below power is mostly 2 poles, and the matched petrol engine of institute and diesel engine are mostly single cylinder and twin-tub
Engine.For engine in 3000 rpms of working speed, synchronous alternating-current generator can send frequency 50Hz alternating currents；Its
With engine in 3600 rpms of working speed, synchronous alternating-current generator can send frequency 60Hz alternating currents.
To improve the output power of this generator as far as possible, domestic production business is simply using promotion motor copper
With the method for iron, that is, lengthening motor stator core and rotor core.Although this mode can promote electricity in a certain range
Acc power, but there is no be synchronously improved promotion to the heat-sinking capability of motor.It is higher that this just makes motor generate at work
Wen Sheng, and excessively high temperature increases the D.C. resistance of machine winding, and generator is then made to generate higher copper loss and iron
Loss affects the efficiency of generator.At present, the synchronous alternating-current generator efficiency in the following power sections of China 20kw is generally less than
85%.And it is a kind of serious waste to raw material to mass produce this inefficient generator.
Utility model content
Goal of the invention：The purpose of this utility model is that solving the deficiencies in the prior art, a kind of new height is provided
Efficiency synchronous alternating-current generator.
Technical solution：A kind of novel efficient synchronous alternating-current generator of the utility model, including stator, rotor and fan,
The stator periphery, which is equipped with, is reserved with gap the second air passage of formation between anchor ear and stator and anchor ear；The rotor framework of the rotor
Both sides are evenly arranged with several miniature fan blades；The fan is installed on rotor close to driving end one side, and the fan includes branch
Support plate, axle sleeve and several fan blade, support plate is in annular shape, and axle sleeve is located at support disk center and is connected with motor shaft, institute
Blade is stated using forward tilt structure, each equal one end of blade is connected to axle sleeve and the other end is outwards dissipated evenly distributed company by axle sleeve
Support plate is connected to, the height away from motor shaft one end causes entire blade higher than the height close to motor shaft one end on each blade
In two level stairstepping, the relatively low one end of height is level-one blade end on blade, and height higher end is two level blade end on blade, one
Grade blade end and the upper edge of two level blade end are parallel with the disk of support plate.
Further, the generator unit stator close to the End winding line bag top surface of fan one side close to level-one blade end
Upper edge position, and the line bag side of stator is surround by the vaned two level blade end of institute and surrounds so that entire stator end
Line coating fan is surround.
When motor rotates, miniature fan blade rotates with rotor and forms centrifugal air-flow, can be by rotor winding end line bag
The heat of generation is quickly blowed to the air passage of motor, then drains into outside motor, while the quantity of miniature fan blade and height root
It is determined according to motor size.
Further, fast sabot is further included, the fast sabot is secured by bolts in the outside of motor drive terminal lid, and with
Driving end end cap is coordinated by seam allowance.Generator can so be reduced and adjust hair with worker during engine assembly generating set
The difficulty of electric machine rotor air gap, fast tray loading structure are located at motor drive terminal, are the important components that generator is connected with power source.
Advantageous effect：Only has stator compared with unique air passage that air gap between rotor is formed with common generator, this practicality is new
Generator unit stator side together forms second air passage of wound motor with motor anchor ear in type, in generator operation, by
The suction of electric motor fan drives the first air passage and the second air passage interior air-flow to flow simultaneously；So not only add the sky for excluding motor
Gas total amount, the stator exterior of the utility model, which also obtains additional rapid air movement, to be influenced, better heat-radiation effect.
For the utility model in the case where not increasing material cost, the same power of the output phase reduces generator operation medium temperature
Degree rises the loss brought, and heat-sinking capability is stronger, more efficient, and simple with engine assembly.
Description of the drawings
Fig. 1 is the overall structure scheme of installation of the utility model；
Fig. 2 is the structure diagram of fan in the utility model；
Fig. 3 is the blade construction schematic diagram of fan in the utility model；
Fig. 4 is the scheme of installation of fan and stator in the utility model；
Fig. 5 is the schematic diagram that end end cap is driven in the utility model；
Fig. 6 is the schematic diagram of rotor framework in the utility model；
Fig. 7 is double air passage schematic diagrames in the utility model；
Fig. 8 is the scheme of installation of stator and anchor ear in the utility model；
Fig. 9 is the schematic diagram on the outside of fast sabot in the utility model；
Figure 10 is the schematic diagram that fast sabot is connected one side with non-drive end shield in the utility model.
Specific embodiment
Technical solutions of the utility model are described in detail below, but the scope of protection of the utility model is not limited to
The embodiment.
As shown in Figure 1 to Figure 3, a kind of novel efficient synchronous alternating-current generator of the utility model, including stator 4, rotor 5
With fan 7,4 periphery of stator, which is equipped with, is reserved with the second air passage 6-3 of gap formation between anchor ear 3 and stator 4 and anchor ear 3；Rotor 5
6 both sides of rotor framework are evenly arranged with several miniature fan blade 6-1 (such as being uniformly arranged 10 per side)；Fan 7 is installed on rotor
Upper close driving end one side, fan 7 includes support plate 7-1, axle sleeve 7-2 and several fan blade 7-3, support plate 7-1 are in annulus
Shape, axle sleeve 7-2 are located at support plate 7-1 centers and are connected with motor shaft, and blade 7-3 uses forward tilt structure, each blade 7-3
Equal one end is connected to axle sleeve 7-2 and the other end is outwards dissipated by axle sleeve 7-2 and evenly distributed is connected to support plate 7-1, each blade
The height that the height of the upper separate motor shaft one end of 7-3 is higher than close to motor shaft one end so that entire blade 7-3 is in two level stairstepping,
The relatively low one end of height is level-one blade end on blade 7-3, and the upper height higher ends of blade 7-3 are two level blade end, a grade blade
End and the upper edge of two level blade end are parallel with the disk of support plate 7-1.
As shown in figure 4, generator unit stator 4 close to 7 one side of fan End winding line bag top surface 4-1 close to level-one blade end
Upper edge position, and the line bag side of stator 4 by the two level blade end of all blade 7-3 around surrounding so that it is entire fixed
4 end line coating fan 7 of son is surround, and hot-air is drained into outside motor by fan 7 by the exhaust outlet 8-1 in Fig. 4, such as Fig. 5 institutes
Show.Blade 7-3 is equipped with anti-negative pressure ring 7-4.Wherein, the difference in height between level-one blade end and two level blade end depends primarily upon
The height for the generator end line bag applied, in the case where fan is not wiped and touches motor stator core, difference in height is the bigger the better.
Fixed rotor winding in the utility model as shown in Figure 6, rotor framework is respectively arranged at 5 each pole both ends of rotor
6, the rotor framework 6 of common generator is different from, the miniature fan blade 6-1 of multi-disc, the miniature fan blade are included on each rotor framework 6
6-1 follows rotor to rotate when motor works, and can form centrifugal air-flow, by rotor winding overhang line bag and stator 4 around
Group end line raw heat of contracting for fixed output quotas blows to external air channel, and the miniature fan blade 6-1 on this rotor framework 6 directly increases motor
Winding wire bag superficial air amount of flow, heat dissipation effect are apparent；The quantity of miniature fan blade 6-1 and height are true according to motor size simultaneously
It is fixed.
Common generator is directly connected using driving end end cap 8 with engine, and this mode assembles generator and engine
When, it is necessary to motor drive terminal end cap 8 is first installed on the engine, then rotor is installed, last fixed stator 4.The fixation of stator 4
It is then needed using 4 root long bolt 2-1 through 44 root long bolt 2-1 also cross two end caps, this just makes in assembling process easily
It is not coaxial to there is 4 iron core of stator and two end caps that are brought due to the dynamics difference that four root long bolt 2-1 are tightened, then causes
Air gap is unevenly distributed between stator 4 and rotor 6, and assembling needs to adjust this four bolts repeatedly air gap to be made to reach uniform point
Cloth, use are cumbersome.
And the utility model drives end end cap 8,4 iron core of stator, non-drive end shield 2 to pass through stay bolt 2-1 in assembling
Always in integral state.During assembling, after first fast sabot is fixed on engine, it will directly be driven by four lag bolt 8-1
Moved end end cap is attached with fast sabot 9.Fast sabot 9 and driving end end cap 8 are reserved with cooperation seam allowance.As shown in 9 and Figure 10,
During assembling, it is only necessary to ensure fast 9 seam allowance of sabot completely into 2 seam allowance of non-drive end shield, the cooperation of this seam allowance is effective
The alignment that ensure that fast sabot 9 and non-drive end shield 2, then ensure assembling after between stator 4 and rotor 5 air gap it is equal
It is even.That is the utility model turns surely to reduce generator with worker's adjustment generator during engine assembly generating set
The difficulty of sub- air gap is mounted with fast sabot 9, and fast sabot 9 is coordinated with driving end end cap 8 by seam allowance, uses four lag bolt 8-1
It is attached fixation.
As shown in Fig. 8 to Fig. 9, actually there is Double-ventilation-channel structure in the utility model, as shown in fig. 6, mainly including
The second air passage 6-3 that the first air passage 6-2 and stator 4 that air gap between stator 4 and rotor 5 is formed are formed with motor anchor ear 3.It is general
Logical generator is only capable of discharging motor heat by the air flow in the air gap air passage between rotor only there are one air passage.
Since rotor air gap is very small, air passage windage is larger, and very small by the air capacity in air passage in the unit interval, this just limits to
The heat-sinking capability of generator.The utility model is as shown in fig. 7, add the second air passage 6-3, i.e. 4 outside of generator unit stator and electricity
The gap of machine anchor ear 3, the second air passage 6-3 cross-sectional areas are larger, and windage is smaller.In generator operation, such as Fig. 6, by motor
The suction of fan 7 drives the first air passage 6-2 and the second air passage 6-3 interior air-flows to flow simultaneously, not only adds the heat of motor exclusion
Air total amount, is compared and common electric machine, and additional rapid air movement is more that of obtaining outside 4 iron core of generator unit stator to be influenced,
Better heat-radiation effect.
Experiment effect
To verify the utility model advantageous effect, the essentially identical common generator of chosen material cost and corresponding cost
The utility model generator is compared, and machine winding form is identical, identical with iron amount of copper.Comparative result is as follows：
Common electric machine：Stator diameter 190, stator core length 130；
The example of the utility model：Stator diameter 190, stator core length 130；
By upper experimental data as it can be seen that compared with existing common generator, the utility model is in the situation of identical material cost
Under, strong there are heat-sinking capability, output power significantly improves and more efficient advantage.
Claims (4)
1. a kind of novel efficient synchronous alternating-current generator, it is characterised in that：Including stator, rotor and fan, outside the stator
It is equipped in week and gap the second air passage of formation is reserved between anchor ear and stator and anchor ear；The rotor framework both sides of the rotor are uniformly set
It is equipped with several miniature fan blades；The fan be installed on rotor close to driving end one side, the fan include support plate, axle sleeve and
Several fan blade, support plate is in annular shape, and axle sleeve is located at support disk center and is connected with motor shaft, before the blade uses
Formula of inclining structure, each equal one end of blade be connected to axle sleeve and the other end outwards dissipated by axle sleeve it is evenly distributed be connected to support plate,
The height that the height away from motor shaft one end is higher than close to motor shaft one end on each blade so that entire blade is in two level ladder
Shape, the relatively low one end of height is level-one blade end on blade, and height higher end is two level blade end on blade, level-one blade end and
The upper edge of two level blade end is parallel with the disk of support plate.
2. novel efficient synchronous alternating-current generator according to claim 1, it is characterised in that：The generator unit stator leans on
The End winding line bag top surface of nearly fan one side is close to the upper edge position of level-one blade end, and the line bag side of stator is owned
The two level blade end of blade surround and is surrounded so that entire stator end line coating fan is surround.
3. novel efficient synchronous alternating-current generator according to claim 1, it is characterised in that：The number of the miniature fan blade
Amount and height are determined according to motor size.
4. novel efficient synchronous alternating-current generator according to claim 1, it is characterised in that：Further include fast sabot, institute
The outside that fast sabot is secured by bolts in motor drive terminal lid is stated, and is coordinated with driving end end cap by seam allowance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720536216.9U CN207459848U (en) | 2017-05-16 | 2017-05-16 | A kind of novel efficient synchronous alternating-current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720536216.9U CN207459848U (en) | 2017-05-16 | 2017-05-16 | A kind of novel efficient synchronous alternating-current generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207459848U true CN207459848U (en) | 2018-06-05 |
Family
ID=62246181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720536216.9U Expired - Fee Related CN207459848U (en) | 2017-05-16 | 2017-05-16 | A kind of novel efficient synchronous alternating-current generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207459848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953437A (en) * | 2017-05-16 | 2017-07-14 | 高邮市科特电机制造有限公司 | A kind of novel efficient synchronous alternating-current generator |
-
2017
- 2017-05-16 CN CN201720536216.9U patent/CN207459848U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106953437A (en) * | 2017-05-16 | 2017-07-14 | 高邮市科特电机制造有限公司 | A kind of novel efficient synchronous alternating-current generator |
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Legal Events
| 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: 20180605 Termination date: 20200516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |