CN203039499U

CN203039499U - Variable frequency generator

Info

Publication number: CN203039499U
Application number: CN 201220701081
Authority: CN
Inventors: 李治兵; 郑选德
Original assignee: CHONGQING JILI YUNFENG INDUSTRY (GROUP) Co Ltd
Current assignee: CHONGQING JILI YUNFENG INDUSTRY (GROUP) Co Ltd
Priority date: 2012-12-18
Filing date: 2012-12-18
Publication date: 2013-07-03
Anticipated expiration: 2022-12-18

Abstract

A variable frequency generator comprises an engine, a generator stator and a crankshaft on the engine, and is characterized in that a flywheel rotor which is positioned at one side of the engine is fixed on the crankshaft; the generator stator is positioned inside the flywheel rotor and is fixed on an end face of the engine; and a winding corresponding to a winding of the generator stator is arranged inside the flywheel rotor. The variable frequency generator provided by the utility model has advantages of compact structure and light weight. By replacing the original generator rotor and the original flywheel with one part, the volume of the variable frequency generator is obviously reduced and the volume is at least reduced to 50% of the volume of an original generator. Costs are significantly reduced and are at least reduced by RMB 500. The variable frequency generator has a compact structure and is convenient to maintain. Components and weight of the variable frequency generator are reduced such that the variable frequency generator is convenient to move. Loads on the engine are decreased, thus significantly raising output power. And the cooling effect on the generator stator is raised.

Description

A kind of frequency conversion generator

Technical field

The utility model relates to a kind of generator, particularly a kind of frequency conversion generator.

Background technology

Generator generally comprises engine, generator and flywheel, wherein, has air inlet in the engine operation process, compression, outburst and four strokes of exhaust, the effect of flywheel is to absorb energy under the outburst stroke of engine, air inlet at engine, release energy under compression and the instroke, increase the rotatory inertia of engine to guarantee the uniformity of rotating speed, be used for reducing the velocity perturbation of machine operation process, the rotating speed that prevents engine from low to high and unexpected variation from high to low, reach control engine even running purpose, therefore, the essential flywheel of installing on the engine crankshaft.

In existing gasoline engine generator, generator amature is installed in an end of engine crankshaft by the casing of generator, generator unit stator is installed on the end face of engine, generator amature is positioned at generator unit stator, flywheel is installed in the other end of engine crankshaft, it is two kinds of functions that realize counterweight and generating by flywheel and two parts of generator amature respectively, wherein, in order to guarantee the uniformity of engine speed, reach control engine even running purpose, it is solid discoid that flywheel adopts that cast iron processes, make the size of flywheel bigger, the rotor of generator and stator dimensions are also bigger, make the size of master section bigger, obviously increased the volume of generator complete machine, the size of complete machine is big, and required material is also more, has obviously increased cost, also very heavy, be not easy to when using out of doors move; All there is load at the two ends of engine crankshaft, thereby, increased the required energy of complete machine revolving part, influenced power output.

In order to reduce volume, be convenient for carrying, the less generator of volume is also arranged now, but it also is an end that generator amature is installed in engine crankshaft by the casing of generator, generator unit stator is installed on the end face of engine, generator amature is positioned at generator unit stator, the other end of engine crankshaft is installed flywheel, just dwindled the size of master section length, be two kinds of functions that realize controlling engine even running and generating by flywheel and two parts of generator amature respectively equally, flywheel also is adopt that cast iron processes solid discoid, size is bigger, the volume of generator complete machine is also bigger, still there is load in the two ends of engine crankshaft, increased the required energy of complete machine revolving part, influence power output, and, it is the below that master section is installed in muffler, this lamp generating set is carrying out when air-cooled, it is first cooled engine, cool off muffler again, last cooled electric generator, near the muffler temperature is higher, roughly at 120 ℃, the temperature that generator work produces is well below the temperature of muffler, cooling air lower generator of chilling temperature again after having cooled off the higher muffler of temperature, cooling effect is poor, then not reaching the cooling to generator, cause in the generator temperature rise of stator winding too high easily, is that great negative effect is arranged to the performance of generator.

The utility model content

The purpose of this utility model just provides a kind of compact conformation and lightweight frequency conversion generator, and under equal power output prerequisite, volume obviously reduces, and volume is decreased to 50% of original generator volume at least, and cost significantly reduces.

The purpose of this utility model is to realize by such technical scheme, it comprises the bent axle on engine, generator unit stator and the engine, it is characterized in that: the intrinsic flywheel rotor that is positioned at engine one side on bent axle, generator unit stator is positioned at flywheel rotor, generator unit stator is fixed on the end face of engine, is provided with the winding corresponding with the winding on the generator unit stator in the flywheel rotor.

Utility model point of the present utility model just is: substituted original generator amature and two parts of flywheel with a flywheel rotor.That is: flywheel rotor is generator amature, it is again the flywheel of control engine even running, can realize the control of engine even running by the weight of adjusting flywheel rotor, because the utility model has substituted original generator amature and two parts of flywheel by parts, volume obviously reduces, volume can be decreased to 50% of original generator volume at least, because the minimizing of parts, cost significantly reduces, at least reduced by 500 yuans cost, weight lightens, and is convenient to move.

The generator unit stator endoporus is greater than the diameter of bent axle, during assembling, earlier generator unit stator is installed in by screw on the end face of a side of engine, one end of bent axle is arranged in the endoporus of generator unit stator, flywheel rotor is installed on the end of bent axle, makes flywheel rotor cover generator unit stator, the winding on the flywheel rotor is corresponding with the winding of generator unit stator, can fan and kuppe be installed in a side of flywheel rotor at last, be assembled into the engine complete machine.The utility model is assembled into the load that has reduced the complete machine bent axle other end behind the complete machine, because volume obviously reduces, has reduced the consumption of energy, has improved power output.

The utility model in use, make earlier between winding on the flywheel rotor and the generator unit stator and produce magnetic field, ato unit, drive the flywheel rotor rotation by bent axle, make flywheel rotor do the motion of cutting magnetic line, thereby produce induced potential, draw by binding post, be connected in the loop, just produce electric current.

Owing to adopted technique scheme, the utlity model has following advantage:

(1), substituted original generator amature and two parts of flywheel by parts, volume has obviously reduced, and volume is decreased to 50% of original generator volume at least;

(2), because parts reduce, cost significantly reduces, and has reduced by 500 yuans cost at least;

(3), compact conformation, be convenient to safeguard, reduced parts, alleviated weight, be convenient to move;

(4), since volume obviously reduce, reduced the consumption of energy, improved power output;

(5), master section is installed in kuppe inside, away from muffler, improved the cooling effect to generator unit stator.

Description of drawings

Description of drawings of the present utility model is as follows.

Fig. 1 is the structural representation of first kind of embodiment of the utility model.

Fig. 2 is the first kind of cutaway view of A-A among Fig. 1.

Fig. 3 is the second kind of cutaway view of A-A among Fig. 1.

Fig. 4 is the structural representation of second kind of embodiment in the utility model.

Fig. 5 is the structural representation of first kind of embodiment of flywheel rotor in the utility model.

Fig. 6 is the rearview of Fig. 5.

Fig. 7 is the left view of Fig. 5.

Fig. 8 is the cutaway view of B-B among Fig. 5.

Fig. 9 is the structural representation of second kind of embodiment of flywheel rotor in the utility model.

Figure 10 is the first kind of cutaway view of C-C among Fig. 9.

Figure 11 is the second kind of cutaway view of C-C among Fig. 9.

Figure 12 is the structural representation of first kind of embodiment of impeller.

Figure 13 is the rearview of Fig. 7.

Figure 14 is the right view of Fig. 7.

Figure 15 is the structural representation of second kind of embodiment of impeller.

Figure 16 is the right view of Figure 10.

Figure 17 is the rearview of Figure 10.

Among the figure: the ⒈ engine; The ⒉ generator unit stator; The ⒊ bent axle; The ⒋ flywheel rotor; The ⒌ winding; The ⒍ ring set; The ⒎ rotary sleeve; The ⒏ adapter sleeve; ⒐ conical ring platform; The ⒑ connecting key; The ⒒ bellmouth; The ⒓ keyway; The ⒔ retainingf key; The ⒕ connecting hole; ⒖ assembles keyway; The ⒗ impeller; The ⒘ fan leaf; The ⒙ wind scooper; The empty filter of ⒚; The ⒛ muffler.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

Shown in Fig. 1-11, comprise the bent axle 3 on engine 1, generator unit stator 2 and the engine, it is characterized in that: the intrinsic flywheel rotor 4 that is positioned at engine one side on bent axle 3, generator unit stator 2 is positioned at flywheel rotor 4, generator unit stator 2 is fixed on the end face of engine 1, is provided with the corresponding winding 5 of winding of generator unit stator 2 in the flywheel rotor 4.

Shown in Fig. 5,6,7,8, flywheel rotor 4 is made of ring set 6 and rotary sleeve 7, and ring set 6 and rotary sleeve 7 are hollow and both ends open, and rotary sleeve 7 is fixed on the inwall of ring set 6, the intrinsic adapter sleeve 8 that is connected with bent axle 3 on rotary sleeve 7, winding 5 is fixed on the inwall of rotary sleeve 7.

Shown in Fig. 9,10,11, flywheel rotor 4 is the revolving parts that are processed into interior sky and both ends open by the single piece of a circle, the intrinsic adapter sleeve 8 that is connected with bent axle 7 on revolving part, and winding 5 is fixed on the inwall of described revolving part.

Shown in Fig. 2,4, adapter sleeve is fixed on the bent axle like this: bent axle 3 is provided with conical ring platform 9, conical ring platform 9 positions of bent axle 3 are provided with connecting key 10, have the bellmouth 11 that matches with conical ring platform 9 on the adapter sleeve 8, inwall at bellmouth 11 is provided with the keyway 12 that matches with connecting key 10, adapter sleeve 8 is enclosed within by bellmouth on the conical ring platform 9 of bent axle, and connecting key 10 is positioned at keyway 12 and is fixed together with bent axle 3.Conical ring platform 9 in this structure cooperates with bellmouth 11 can prevent from shaking between flywheel rotor and the bent axle reliability that raising is used.

As shown in Figure 3, adapter sleeve is fixed on the bent axle like this: bent axle 3 is provided with retainingf key 13, have connecting hole 14 on the adapter sleeve 8, connecting hole 14 inwalls are provided with the assembling keyway 15 that matches with retainingf key 13, and adapter sleeve 8 was fixed together by assembling keyway 15 and cooperating with bent axle 3 of retainingf key 13.

Shown in Figure 12-17, in order to improve cooling effect, the intrinsic impeller 16 that is positioned at flywheel rotor 4 one sides on adapter sleeve 8.Impeller 16 is identical with the effect of fan.

Shown in Figure 12-14, be uniformly distributed with polylith fan leaf 17 on one of them side of impeller 16, impeller 16 is provided with ventilation notch 18.It is to be exactly single fan for this structure, forms axial flow wind, can enter in the generator amature by ventilation notch 11 cooling airs generator unit stator is cooled off.

Shown in Figure 15-17, in order to increase intake, further improve cooling effect, two sides of impeller 16 are provided with polylith fan leaf 17.

Shown in Fig. 1-4, at the shell of engine 1 wind scooper 18 that can cover impeller 16 and flywheel rotor 4 is arranged fixedly, the air-out end of wind scooper 18 is near the cylinder head of engine.This wind scooper 18 can utilize the air quantity of impeller generation from the cylinder head of generator flow direction engine, thereby make cooling air elder generation cooled electric generator stator, flywheel rotor, the cylinder head of cooled engine again, cool off muffler at last, lower generator unit stator, the generator amature of elder generation's chilling temperature, the last higher muffler of chilling temperature has obviously improved the cooling effect to generator unit stator.

As shown in Figure 1, 2, 3, flywheel rotor 4 can be positioned at the left side of engine.Non-loaded on the bent axle on the right side of engine, obviously dwindled volume, and general muffler is the right side that is positioned at engine, this installation form can make flywheel rotor 4 away from muffler, improves the cooling effect to generator unit stator.

As shown in Figure 4, flywheel rotor 4 also can be positioned at the right side of engine.Non-loaded on the bent axle in the left side of engine, obviously dwindled volume.

As shown in Figure 1, engine is provided with sky filter 19 or muffler 20.

Claims

1. frequency conversion generator, comprise the bent axle (3) on engine (1), generator unit stator (2) and the engine, it is characterized in that: go up the intrinsic flywheel rotor (4) that is positioned at engine one side at bent axle (3), generator unit stator (2) is positioned at flywheel rotor (4), generator unit stator (2) is fixed on the end face of engine (1), is provided with the line group (5) corresponding with the winding on the generator unit stator (2) in the flywheel rotor (4).

2. frequency conversion generator as claimed in claim 1, it is characterized in that: flywheel rotor (4) is made of ring set (6) and rotary sleeve (7), ring set (6) and rotary sleeve (7) are hollow and both ends open, rotary sleeve (7) is fixed on the inwall of ring set (6), go up the intrinsic adapter sleeve (8) that is connected with bent axle (3) at rotary sleeve (7), winding (5) is fixed on the inwall of rotary sleeve (7).

3. frequency conversion generator as claimed in claim 1, it is characterized in that: flywheel rotor (4) is the revolving part that is processed into interior sky and both ends open by the single piece of a circle, the intrinsic adapter sleeve (8) that is connected with bent axle (7) on revolving part, winding (5) is fixed on the inwall of described revolving part.

4. as claim 2 or 3 described frequency conversion generators, it is characterized in that adapter sleeve is fixed on the bent axle like this: bent axle (3) is provided with conical ring platform (9), conical ring platform (9) position of bent axle (3) is provided with connecting key (10), have the bellmouth (11) that matches with conical ring platform (9) on the adapter sleeve (8), inwall at bellmouth (11) is provided with the keyway (12) that matches with connecting key (10), adapter sleeve (8) is enclosed within by bellmouth on the conical ring platform (9) of bent axle, and connecting key (10) is positioned at keyway (12) and is fixed together with bent axle (3).

5. as claim 2 or 3 described frequency conversion generators, it is characterized in that adapter sleeve is fixed on the bent axle like this: bent axle (3) is provided with retainingf key (13), have connecting hole (14) on the adapter sleeve (8), connecting hole (14) inwall is provided with the assembling keyway (15) that matches with retainingf key (13), and adapter sleeve (8) was fixed together by assembling keyway (15) and cooperating with bent axle (3) of retainingf key (13).

6. frequency conversion generator as claimed in claim 4 is characterized in that: go up the intrinsic impeller (16) that is positioned at flywheel rotor (4) one sides at adapter sleeve (8).

7. frequency conversion generator as claimed in claim 5 is characterized in that: go up the intrinsic impeller (16) that is positioned at flywheel rotor (4) one sides at adapter sleeve (8).

8. as claim 6 or 7 described frequency conversion generators, it is characterized in that: be uniformly distributed with polylith fan leaf (17) on one of them side of impeller (16), impeller (16) is provided with ventilation notch (18).

9. as claim 6 or 7 described frequency conversion generators, it is characterized in that: two sides of impeller (16) are provided with polylith fan leaf (17).

10. frequency conversion generator as claimed in claim 8, it is characterized in that: the shell at engine (1) fixedly has the wind scooper (18) that can cover impeller (16) and flywheel rotor (4), and the air-out end of wind scooper (18) is near the cylinder head of engine.

11. as each described frequency conversion generator in the claim 1,2,3,6,7, it is characterized in that: flywheel rotor (4) is positioned at the left side of engine.

12. as each described frequency conversion generator in the claim 1,2,3,6,7, it is characterized in that: flywheel rotor (4) is positioned at the right side of engine.

13. frequency conversion generator as claimed in claim 11 is characterized in that: engine is provided with sky filter (19) or muffler (20).

14. frequency conversion generator as claimed in claim 12 is characterized in that: engine is provided with sky filter (19) and muffler (20).