CN104847488A - Generator set driven by engine - Google Patents

Generator set driven by engine Download PDF

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Publication number
CN104847488A
CN104847488A CN201510225124.4A CN201510225124A CN104847488A CN 104847488 A CN104847488 A CN 104847488A CN 201510225124 A CN201510225124 A CN 201510225124A CN 104847488 A CN104847488 A CN 104847488A
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China
Prior art keywords
engine
chamber
generator
air
cooling
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Granted
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CN201510225124.4A
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Chinese (zh)
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CN104847488B (en
Inventor
王韶华
蔡林军
吴建亮
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Sumec Machinery & Electric Co Ltd
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Sumec Machinery & Electric Co Ltd
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Priority to CN201510225124.4A priority Critical patent/CN104847488B/en
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Publication of CN104847488B publication Critical patent/CN104847488B/en
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Abstract

The invention discloses a generator set driven by an engine. The generator set comprises a sound proof box, an engine, a generator and an exhaust muffler, wherein the sound proof box is composed of an upper cover, side walls and a chassis; the engine is arranged on the chassis, and an engine cooling fan is arranged at the side inlet of the engine and guides cooling air into the engine; a cooling fan is arranged at the connection part of the generator and the engine to guide the cooling air into the generator; the exhaust muffler is arranged at the rear side of the generator and parallel to the axis of the generator; one end of the exhaust muffler is connected with the engine through an exhaust pipe; a hot air exhaust chamber is further arranged in the sound proof box, is composed of a side panel, a cover plate and an engine speed regulation base, and encircles an engine cylinder end, a cylinder body and one part of the exhaust pipe; an opening is formed in the rear side of the hot air exhaust chamber and is connected with a first ventilation hole at the side wall of the sound proof box. According to the generator set, the problems of noise and heat balance can be effectively solved, and the oil temperature of the engine can be obviously reduced beyond 30 degrees centigrade, thereby ensuring that reliable lubrication of the engine and the power level of the complete generator bring into correspondence with open-shelf products.

Description

A kind of engine-driven generator set
Technical field
The present invention relates to a kind of generator set, particularly relate to a kind of engine-driven generator set, wherein, motor is connected with generator coaxle and is arranged in a sound proof box with air inducing shell.
Background technique
Generator set is generally widely used as civilian and industrial power, to meet the electricity needs of numerous occasions such as family, school, hospital, building site.But great majority are all open-shelf products in the market, outside its motor is directly exposed to, so there is the high defect of level of noise, quiet yard of can not satisfying the demand is worked at night the requirement of environment in one's power.
In order at utmost reduce noise, use sound proof box that motor and generator are closed and all significantly reduced into and out of inlet number, due to the thermal radiation that motor and generator operation produce, heat in sound proof box is constantly accumulated and causes temperature rising, the original thermal equilibrium of generator set is broken.The radiating condition of motor is deteriorated, and oil temperature significantly raises, engine lubrication deleterious; Electric machine temperature rise also raises because radiating condition is deteriorated, and finally causes the overall obviously decline of the output power of generator set.If effectively thermal balance question can not be solved, the heat accumulated in sound proof box is taken away in time, effective control box environment temperature, then mute power generator group not only power can decline, and can not long time reliably working.Such as, application number is that the art solutions of CN201310092695.6 exists obvious technological deficiency, and the product produced accordingly exists exhaust gas recirculation, the problem that exhaust efficiency is low, the interior cooling of sound proof box is insufficient.Cause sound proof box environment temperature and the abnormal rising of oil temperature, electric machine temperature rise increases, and generating set power declines, and can not work reliably and with long-term.
Because above technical problem relates to complicated machine system, solve noise and thermal balance question has very large difficulty simultaneously, to such an extent as to also there is no a kind of technological scheme of mature and reliable so far, by market inspection and obtain customer acceptance.
In prior art, also have the second tunnel ventilating the first via and cool motor internal to ventilate and import the way of above-mentioned baffler exhaust chamber simultaneously, the program also can face same reflux problem.The thermal air current of backflow goes back to motor internal and engine cold gas chamber, and cause engine oil temperature, sound proof box environment temperature and machine temperaturing lifting abnormality to raise, finally cause motor and motor damage, motor can not reliably working.
The technical solution adopted in the present invention, adopts separate baffler exhaust chamber and hot blast exhaust chamber, and air exhaust channel is not connected (its sidewall is provided with the through hole that discharge hoses passes) also, therefore thoroughly solves above-mentioned technical barrier.
2) have best air draft path, ventilation efficiency is the highest, cooling effect is best, and cooling-down effect is obvious.
The first via is ventilated after cooling engine cylinder-body and generator, and air temperature becomes red-hot, and temperature raises significantly.By entering independently hot blast exhaust chamber and no longer enter baffler exhaust chamber, therefore can not reflux under pressure, and can with shortest path, maximum blast enters air fast, thus at utmost takes away the heat of motor.Because the reduction of engine oil temperature, mainly rely on the setting that the first via is ventilated, the first via is ventilated can take away how many heats in time, and what level is decision engine oil temperature can be reduced to.Ventilate relative to the first via in the art solutions that application number is CN201310092695.6, the first via in this patent is ventilated and is had the best decisive advantage of cooling effect the best, heat extraction effect.According to contrast test result, the technological scheme of the employing done independently hot blast exhaust chamber of ventilating for the first via in this patent, just effectively can reduce oil temperature about 20 DEG C, the reliable operation for generator provides conclusive guarantee.
Meanwhile, ventilate due to the first via and no longer enter baffler exhaust chamber, therefore baffler exhaust chamber also adopts the form of autonomous closure.In working procedure, 3rd tunnel ventilates under powerful fan exhaust pressure, cool air flows into from sound proof box outside, after the hot air cooling sound proof box inside, enter baffler exhaust chamber continuously, abundant mixing also, after cooling baffler, enters air from the exhaust outlet be located at chassis under pressure; Ventilate relative to the 3rd tunnel in the art solutions that application number is CN201310092695.6, the 3rd tunnel in this patent ventilates and also can not be back in sound proof box, and air draft is more thorough.According to contrast test result, closed baffler exhaust chamber, effectively can reduce the ambient temperature about 10 DEG C in sound proof box, thus makes engine motor oil reduce about 10 DEG C further.
Second tunnel of the art of this patent scheme ventilates, and enters hot blast exhaust chamber after cooling motor, after fully mixing, enters air by opening corresponding on sound proof box with first via path.Comparing application number is that the second tunnel in the art solutions of CN201310092695.6 ventilates, and the second tunnel in this patent ventilates and also can not be back to motor internal, thus makes motor internal obtain more effective cooling.According to contrast test result, the second tunnel in this patent ventilates, and effectively can reduce electric machine temperature rise 5 DEG C-10 DEG C; But engine motor oil temperature rise is had no significant effect.
In sum, ventilation channel set by this patent and the improvement for prior art, significantly can reduce engine oil temperature more than 30 DEG C, thus ensure that the proper lubrication of motor and complete machine power level and open-shelf product are consistent, generator set can work reliably and with long-term.
Below with reference to accompanying drawing, the preferred embodiments of the present invention are described, to clearly object of the present invention, feature & benefits.
Summary of the invention
The object of the invention is to, overcome the defect of prior art, provide a kind of generator set, this generator set efficiently solves noise and thermal balance question, significantly can reduce engine oil temperature more than 30 DEG C, thus ensure that the proper lubrication of motor and complete machine power level and open-shelf product are consistent, and can steady in a long-termly run.
The technological scheme realizing the object of the invention is: a kind of engine-driven generator set, comprising: sound proof box, and described sound proof box is made up of upper cover, sidewall and chassis, and the chassis of described sound proof box is provided with:
Motor, is provided with the cooling fan of engine of this motor that to be led by cooling-air in engine side inlet;
The generator be coaxially connected with this motor, the generator side of described generator and motor joint is provided with the cooling fan of this generator that to be led by cooling-air;
Muffler, this muffler is arranged in the rear side of generator, is parallel to the axis of generator; One end of this muffler is connected with motor by outlet pipe;
Also be provided with hot blast exhaust chamber in described sound proof box, described hot blast exhaust chamber is made up of side plate, cover plate and engine governed speed seat, in engine cylinder head, cylinder body and portion discharge pipe being enclosed in; Be provided with opening on rear side of described hot blast exhaust chamber, this opening connects the first row pore of sound proof box sidewall.
Enter hot blast exhaust chamber after cooling-air cooled engine, enter air by the corresponding opening on sound proof box, thus have the ambient temperature reduced in effect sound proof box, ensure the running of generator set energy normal reliable.
As a further improvement on the present invention, engine cooling air intake chamber is also provided with in described sound proof box, described engine cooling air intake chamber is made up of chassis, the side dividing plate upwards extended from chassis and the top board that covers the space that side dividing plate surrounds from above, and cooling fan of engine and fan guard surround wherein by engine cooling air intake chamber;
On described chassis, the position corresponding to engine cooling air intake chamber is provided with the first intake grill;
The first via ventilation channel that described generator set is used for cooled engine is: under the pumping action of cooling fan of engine, cooling-air enters engine cooling air intake chamber by the first intake grill, again through the cooling air inlet suction fan cover inner chamber of motor kick-starter, along the radiating fin flowing on engine cylinder and cylinder head under centrifugal action, cooling and flowing into hot blast exhaust chamber after taking away the heat of motor, discharged by the first row pore of sound proof box sidewall.
As a further improvement on the present invention, the right-hand member of described generator is provided with air inducing shell, the inner chamber, left and right two being divided into relative closure by intermediate clapboard of air inducing shell, left chamber is connected with the electric machine support of generator afterbody, cavity be provided with port under left chamber intake grill, the position corresponding with left chamber intake grill, described chassis is provided with the second intake grill;
The second ventilation operation path, road that described generator set is used for cooled electric generator is: under the pumping action of generator cooling fan, cooling-air is inhaled into the left chamber of air inducing shell from the second intake grill, left chamber intake grill, the cooling air intake chamber of generator, after cooled electric generator, the exhaust outlet of hot air on case lid wind scooper flows into hot blast exhaust chamber, is discharged by the first row pore of sound proof box sidewall.
In technique scheme, after cooled engine, enter the gas of hot blast exhaust chamber, with cool generator after enter hot blast exhaust chamber exhaust mix, and enter air further by the corresponding opening on sound proof box.
As a further improvement on the present invention, be furnished with fan air being imported generator inner chamber in the described right chamber of air inducing shell, the right-hand member in right chamber is provided with right chamber intake grill, and the rear side of right chamber wall is provided with right chamber exhaust outlet;
On described chassis, the position of engine foundation is provided with the 3rd intake grill;
The top cover of described sound proof box is provided with the 4th intake grill;
The chassis of described sound proof box is also provided with baffler exhaust chamber, and described baffler exhaust chamber is surrounded by upper plate, side plate and chassis, and described baffler is located in baffler exhaust chamber, and the chassis at baffler exhaust chamber position is provided with second row pore; Described right chamber exhaust outlet is communicated with the intake grill on the side plate of described baffler exhaust chamber;
Described generator set for cooling the 3rd ventilation operation path, road of air in sound proof box is: under the pumping action of fan, cooling-air enters sound proof box from the 3rd, the 4th intake grill, and fully mix with the hot air in it, after taking away the heat in sound proof box, the right chamber of air inducing shell is inhaled into through right chamber intake grill, enter baffler exhaust chamber by right chamber exhaust outlet, after cooling muffler, discharge via the second row pore on sound proof box under pressure.
Test shows, technological scheme of the present invention, compared with other technological scheme, has following obvious technical advantage:
1) the backflow difficult problem that other technological scheme faces is solved.
For making muffler obtain effective cooling, the fan in air inducing shell must keep enough exhaust air rates, thus forms larger pressure in baffler exhaust chamber.In prior art, the first via ventilation cooling motor is imported into baffler exhaust chamber, and because path is longer and reveal build-up of pressure loss on the way, the final first via is ventilated less at the pressure of baffler exhaust chamber ingress, therefore, the part that the first via is ventilated can reflux.The hot air of backflow, with the part hot air in baffler exhaust chamber, flows through engine radiating sheet and reenters in sound proof box, finally enters silencing apparatus exhaust chamber again and participates in next circulation.The hot air of backflow, both have impact on the intake efficiency of engine cooling chamber, and make again the ambient temperature in chamber continue to raise simultaneously, thus engine oil temperature and electric machine temperature rise are continued to increase, the power drop of generator set complete machine extremely can not reliably working.
Accompanying drawing explanation
Fig. 1 is the three-dimensional view of the embodiment of the present invention 1;
Fig. 2 is the plan view after engine-driven generator set of the embodiment of the present invention 1 removes upper cover and fuel tank;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the B-B sectional view of Fig. 3;
Fig. 5 is the interior views of baffler exhaust chamber and hot blast exhaust chamber;
Fig. 6 is that right right elevation behind the door removed by engine-driven generator set of the embodiment of the present invention 1;
Fig. 7 is the C-C sectional view of Fig. 6;
Fig. 8 is engine-driven generator set rear view of the embodiment of the present invention 1;
Fig. 9 is the chassis schematic perspective view I of the embodiment of the present invention 1;
Figure 10 is the chassis schematic perspective view II of the embodiment of the present invention 1.
Embodiment
As shown in Figure 1, engine-driven generator set 100, comprises sound proof box 70, and wherein sound proof box 70 is made up of chassis 4, sidewall 6 and upper cover 8.
As shown in Figure 2, Figure 3 and Figure 4, motor 1, generator 10, electric machine support 16, air inducing shell 11 and fuel tank 9 is provided with in sound proof box, and independently baffler exhaust chamber 26 and hot blast exhaust chamber 25, muffler 36 is arranged in baffler exhaust chamber 26, and one end is connected with engine exhaust port by outlet pipe 34.
Motor 1 is connected with chassis 4 by beam 2, can effectively reduce the vibrations of generator set in working procedure.Motor 1 is arranged in sound proof box 70, and is furnished with the coaxial generator 10, electric machine support 16 and the air inducing shell 11 that connect from left to right successively, and the left chamber of air inducing shell 11 is connected with electric machine support 16 tail end.Sidewall 6 is fixed on chassis 4, and fuel tank 9 is fixed on sidewall 6, and upper cover 8 is connected with sidewall 6 by bolt.
Generator 10 comprises stator 17, rotor 18, rotor shaft 19, generator cooling fan 22.The left end of rotor shaft 19 is pressed with connecting sleeve 21, and generator cooling fan 22 is fixed by bolt and connecting sleeve 21 and is positioned at case lid 23, and the taper hole of rotor shaft 19 left end matches with the cone end of bent axle 24; The right-hand member of rotor shaft 19 is provided with tapered end, and matches with the taper hole of land 14.The small end of land 14 penetrates from the central through bore right-to-left of air inducing shell 11, and is connected with rotor shaft 19, holds the right chamber being positioned at air inducing shell 11 greatly and it is fixed with fan 12 by screw.Centre bolt 13 right-to-left through the center hole of land 14, rotor shaft 19, to be connected with bent axle 24 and fastening successively.Rotor 18 is fitted on rotor shaft 19, and stator 17 is contained between case lid 23 and support 16 seam, and case lid 23 and support 16 are bolted.
As shown in Figure 5 and 7, motor wind-guiding lower side panel 64 is fixed on the base of motor 1, motor wind-guiding right sideboard 30, motor wind-guiding upper left side plate 32, motor wind-guiding lower side 65 and front shroud 63 are attached thereto by bolt, and jointly form hot blast exhaust chamber 25 with speed regulation seat 33.The exhaust outlet i of engine cylinder head and cylinder body, case lid wind scooper 20 surrounds by this hot blast exhaust chamber 25, is opened on sound proof box 70 and is attached thereto by damping sealing band 31.The sidewall of motor wind-guiding upper left side plate 32, motor wind-guiding lower side 65 is provided with the through hole that discharge hoses 34 passes.
As shown in Fig. 4, Fig. 5 and Fig. 7, baffler outer cover bottom sheet 38 is opened on chassis 4 fixing with it, and baffler outer cover right 67, baffler outer cover upper slice 57 and front shroud 35 to be connected with baffler outer cover bottom sheet 38 by bolt and also jointly to form baffler exhaust chamber 26.The sidewall of baffler outer cover bottom sheet 38 is had intake grill and is connected with the exhaust outlet h on the sidewall of air inducing shell 11 right chamber by connecting sleeve 39.The sidewall of baffler outer cover right 67 and baffler outer cover upper slice 57 is provided with the through hole that discharge hoses 34 passes.The inwall of baffler exhaust chamber 26 is provided with the thermal-protective material rice card stone blanket 59 that thickness is 10mm, and its Surface coating has thickness to be the aluminium foil of 0.2mm; Outer wall is provided with the heat insulation foam felt 58 that thickness is 20mm.
As shown in Figures 3 and 4, the engine-driven generator set of the present invention is provided with following active chamber: gas inlet shell 5 forms engine cooling air intake chamber A; The left chamber B of air inducing shell 11 and right chamber E; Sidewall 6, chassis 4 form with upper cover 8 the hot air cavity C closed; Baffler exhaust chamber 26 internal cavities D; Cooling air intake chamber F on electric machine support; Hot blast exhaust chamber 25 internal cavities G.B and F is directly communicated with; C is directly communicated with E.
The present invention is provided with following intake grill and exhaust outlet simultaneously: the intake grill a on engine cooling air intake chamber, and the cooling air inlet g(of motor kick-starter 7 is shown in Fig. 3); Cooling air inlet c(on the chassis corresponding with suction tude 61 is shown in Fig. 5, Fig. 9); The cooling air inlet d (see figure 8) at sound proof box top; Cooling air inlet e(bottom chassis 4 is shown in Figure 10); Cooling air inlet b(on the sidewall of air inducing shell 11 left chamber is shown in Fig. 3 and Figure 10); Air sucking mouth f on the right chamber of air inducing shell 11, the exhaust outlet h on the sidewall of air inducing shell 11 right chamber, the exhaust outlet i on case lid wind scooper 20, speed regulation seat 33 exhaust outlet j(is shown in Fig. 4) and sound proof box 70 on exhaust outlet k, l(is shown in Fig. 8, Figure 10).
As shown in Figure 3 and Figure 4, first via ventilation operation path: under the pumping action of cooling fan of engine 3, cooling-air enters engine cooling air intake chamber A by a, then through cooling air inlet g suction fan cover 55 internal cavities of motor kick-starter 7.And then along the radiating fin flowing on engine cylinder and cylinder head under centrifugal action, fully cooling and flowing into hot blast exhaust chamber 25 after taking away the heat of motor.
As Fig. 3, shown in Fig. 4 and Figure 10, second ventilation operation path, road: under the pumping action of generator cooling fan 22, cooling-air is inhaled into the left chamber B of air inducing shell 11 from intake grill b, then flow direction motor support 16 cooling air intake chamber F and fully after cooled electric generator 10, the exhaust outlet i of hot air on case lid wind scooper 20 flows into hot blast exhaust chamber 25.
First and second road ventilates and fully mixes in hot blast exhaust chamber, and after continuing to cool engine exhaust pipe 34, the exhaust outlet l further by sound proof box 70 is discharged in air.
As Fig. 3, Fig. 4, shown in Fig. 8 and Figure 10,3rd ventilation operation path, road: under the pumping action of fan 12, cooling-air enters hot air cavity C from intake grill d, e and fully mixes with the hot air in it, after taking away the heat in hot air cavity C, the right chamber E of air inducing shell 11 is inhaled into through air sucking mouth f, enter baffler exhaust chamber D by exhaust outlet h, fully cool muffler 36 and fully after mixing, the exhaust outlet k under pressure via sound proof box 70 discharges.
As Fig. 4, shown in Fig. 9, when motor 1 works, due to internal negative pressure cylinder, cooling-air is outside sound proof box 70, and the cooling air inlet c on the left of chassis 4 enters air-strainer 60 from suction tude 61, by entering in cylinder after Carburetor and fuel mix, waste gas after burning enters muffler 36 from outlet pipe 34, after noise reduction, enter air.
Because engine cooling air intake chamber A and hot air cavity C is mutually isolated, the hot air in hot air cavity C can not cool air intake chamber A by inflow engine; Simultaneously, hot blast exhaust chamber 25 and baffler exhaust chamber 26 also mutually isolated, hot air in it also can not be back in engine cooling air intake chamber A under the gas pressure in baffler exhaust chamber 26, but enter air with shortest path, thus motor is well cooled, oil temperature is significantly reduced.
When motor 1 works, what the left chamber B of air inducing shell 11 sucked is also cooling-air entirely, and it is inner and take away heat in time that cooling-air flows through generator 10, ensure that the abundant effective cooling of generator; Generator 10 outer surface is placed among hot air cavity C, due to the pumping action that fan 12 is powerful, outside cooling-air enters hot air cavity C continuously, cooling-air whip motor 1 and generator 10 surface and take away heat, flow through the right chamber E of air inducing shell 11 and be blown into exhaust chamber D through exhaust outlet h, discharge in time through exhaust outlet k after coolant exhaust baffler 36.Thus, generator 10 inner and outer surface all obtains abundant effective cooling.
Test shows, the ventilation channel that patent of the present invention provides, and exhaust efficiency is the highest, and cooling-down effect is the most obvious.Other technological scheme on year-on-year basis, can reduce oil temperature more than 30 DEG C; Ensure that cluster engine input power does not decline, and can work reliably and with long-term simultaneously.
As Fig. 3 and Fig. 4, air inducing shell 11, its inside is divided into left chamber B with right chamber E two chamber by intermediate clapboard, and the electric machine support 16 of left chamber B and generator afterbody is bolted, and is furnished with fan 12 in right chamber E.Corresponding to left chamber B, its outer wall is provided with rectangle and gives prominence to cavity 15 and be provided with intake grill b, and this intake grill b is communicated with the air outside sound proof box 70 and is that cooling-air introduced by generator 10; Meanwhile, left chamber B outer wall is provided with approximate rectangular outstanding open-ended cavity 44, and voltage supplied functional unit 43 is installed and used, and open end is sealed by cover plate 45, which is provided with the hole corresponding with voltage-operated parts adjusting screw, so that the voltage-operated parts 43 of quick adjustment.The rear side of right chamber E is provided with the rectangle extended back and gives prominence to cavity 41, and the port that rectangle gives prominence to cavity 41 is exhaust outlet h, and exhaust outlet h is connected with baffler outer cover bottom sheet 38 sidewall intake grill by connecting sleeve 39.Hot air in sound proof box 70 is sucked by the air sucking mouth f of the fan 12 in right chamber E from this chamber right-hand member, and blows to baffler exhaust chamber D from exhaust outlet h, with further coolant exhaust baffler 36.
According to this structure, voltage-operated parts 43 are arranged on air inducing shell 11 cooling-air air inlet, can obtain good cooling.And compared to existing technology, voltage-operated parts 43 change to existing sidewall mounting point from original axial mounting point, significantly add the sectional area that cooling-air circulates to generator, reduce flow resistance, thus be more conducive to cooling-air accelerate flow to generator from intake grill, thus improve generator cooling effect, effectively reduce generator more than temperature rise 10K.Meanwhile, the adjustment of voltage-operated parts is more convenient, and regulating time is shortened to by original 30min and only needs 10s.
According to this structure, air inducing shell is inner is divided into two chambeies, left and right by intermediate clapboard, and left chamber is directly communicated with cooled external air, right chamber is directly communicated with sound proof box hot inside air, the structure of this integration compared with prior art, achieve an integrated multiple function of part, decrease the number of spare parts required for the separation of generator set internal cavity.Not only make air flow faster in sound proof box, be conducive to reducing sound proof box inside temperature, and make generator set have significant cost and technical advantage in production technology, layout, assembling and setting and maintenance.
As shown in Fig. 3, Fig. 4, Fig. 9 and Figure 10, chassis 4 is provided with two road wheels 69 and two brake wheels 68, facilitates the movement of generator set and parks.Chassis 4 corresponds to intake grill a and intake grill c and is provided with venetian blind air guide box 62, is separated by by intake grill a and c in the middle part of air guide box with dividing plate 56, to ensure that the cool air flowing into suction tude 61 flows into from intake grill c; The cool air of inflow engine cooling air intake chamber A flows into from intake grill a, can reduce induction noise like this, a large amount of dusts of bottom can be avoided simultaneously to be inhaled into engine air cylinder interior.Be provided with exhaust air guide box 66 corresponding to baffler exhaust chamber 26 exhaust outlet k, effectively can reduce the exhaust sound of motor 1.The position of chassis 4 corresponding motor 1 base is also provided with cooling air inlet e, and cooling-air enters since then, at utmost can take away the heat at engine foundation position, contribute to the reduction of engine oil temperature.Meanwhile, chassis 4 is also provided with storage battery cover 53, in it, is provided with storage battery 54.
As shown in Fig. 3, Fig. 4, sidewall 6 is bolted on chassis 4, and it is provided with front left-hand door 51, offside door 27, back door 37, offside door 42 and front right door 47 by hinge 46.Quick opening door lock 50 is all equipped with in its front, and fast and easy is opened to check and to safeguard, the inwall of door is equipped with the thick polyamine ester sponge 52 of 25mm, is provided with Stamping Steel Ribbon between sidewall 6 and door.Front right door 47 is fixed with instrument panel back cover 48, and instrument panel back cover 48 is fixed with instrument panel 49.Offside door 27 is provided with the perforate corresponding with chock plate handle 28, with user-friendly.Back door 37 is provided with air guide box 29 and exhaust outlet l, and first and second road in hot blast exhaust chamber 25 ventilates and discharges thus.
Upper cover 8 is provided with oil filler, drain pan and oil level form, has both facilitated user to observe and has operated, and can ensure that again the fuel oil energy overflowed is drained in time.On be covered with cooling air inlet d, cool exterior air can be made to take away the heat on sound proof box top in time, avoid local superheating.Its inwall is provided with the polyamine ester sponge 52 of 20mm, contributes to reducing noise.
Because sound proof box and polyamine ester sponge are to the stop absorption of sound wave, generator set significantly reduces extraradial noise figure, according to measured value, is 65 ± 3 decibels at 7m place sound pressure level test value.
The output frequency of the engine-driven generator set of the present invention is 50Hz or 60Hz, voltage single-phase 110V, 220V, 230V or 240V, three-phase 380V, 400V, 416V or 440V, rated power 2.5kW ~ 8kW.In this generator set, gasoline can be used, liquid gas or fuel combination.
Above-described example is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under the prerequisite not departing from spirit of the present invention; the various distortion that those of ordinary skill in the art make technological scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.

Claims (10)

1. an engine-driven generator set, comprises sound proof box, and described sound proof box is made up of top cover, sidewall and chassis, and the chassis of described sound proof box is provided with:
Motor, is provided with the cooling fan of engine of this motor that to be led by cooling-air in engine side inlet;
The generator be coaxially connected with this motor, the generator side of described generator and motor joint is provided with the cooling fan of this generator that to be led by cooling-air;
Muffler, this muffler is arranged in the rear side of generator, is parallel to the axis of generator; One end of this muffler is connected with motor by outlet pipe;
It is characterized in that, in described sound proof box, be also provided with hot blast exhaust chamber, in engine cylinder head, cylinder body and portion discharge pipe are enclosed in by this hot blast exhaust chamber;
Be provided with opening on rear side of described hot blast exhaust chamber, this opening connects the first row pore of sound proof box sidewall.
2. engine-driven generator set according to claim 1, is characterized in that, the opening on rear side of described hot blast exhaust chamber connects first row pore by air guide box.
3. engine-driven generator set according to claim 1, it is characterized in that, also be provided with in described sound proof box: engine cooling air intake chamber, be made up of chassis, the side dividing plate upwards extended from chassis and the top board that covers the space that side dividing plate surrounds from above, cooling fan of engine and fan guard surround wherein by engine cooling air intake chamber; On described chassis, the position corresponding to engine cooling air intake chamber is provided with the first intake grill; The first via ventilation channel that described generator set is used for cooled engine is: under the pumping action of cooling fan of engine, cooling-air enters engine cooling air intake chamber by the first intake grill, again through the cooling air inlet suction fan cover inner chamber of motor kick-starter, along the radiating fin flowing on engine cylinder and cylinder head under centrifugal action, cooling and flowing into hot blast exhaust chamber after taking away the heat of motor, discharged by the first row pore of sound proof box sidewall.
4. engine-driven generator set according to claim 1, it is characterized in that, the right-hand member of described generator is provided with air inducing shell, the inner chamber, left and right two being divided into relative closure by intermediate clapboard of air inducing shell, left chamber is connected with the electric machine support of generator afterbody, cavity be provided with port under left chamber intake grill, the position corresponding with left chamber intake grill, described chassis is provided with the second intake grill;
The second ventilation operation path, road that described generator set is used for cooled electric generator is: under the pumping action of generator cooling fan, cooling-air is inhaled into the left chamber of air inducing shell from the second intake grill, left chamber intake grill, the cooling air intake chamber of generator, after cooled electric generator, the exhaust outlet of hot air on case lid wind scooper flows into hot blast exhaust chamber, is discharged by the first row pore of sound proof box sidewall.
5. engine-driven generator set according to claim 1, is characterized in that,
Be furnished with fan air being imported generator inner chamber in the described right chamber of air inducing shell, the right-hand member in right chamber is provided with right chamber intake grill, and the rear side of right chamber wall is provided with right chamber exhaust outlet;
On described chassis, the position of engine foundation is provided with the 3rd intake grill;
The top cover of described sound proof box is provided with the 4th intake grill;
The chassis of described sound proof box is also provided with baffler exhaust chamber, and described baffler exhaust chamber is surrounded by upper plate, side plate and chassis, and described baffler is located in baffler exhaust chamber, and the chassis at baffler exhaust chamber position is provided with second row pore; Described right chamber exhaust outlet is communicated with the intake grill on the side plate of described baffler exhaust chamber;
Described generator set for cooling the 3rd ventilation operation path, road of air in sound proof box is: under the pumping action of fan, cooling-air enters sound proof box from the 3rd, the 4th intake grill, and fully mix with the hot air in it, after taking away the heat in sound proof box, the right chamber of air inducing shell is inhaled into through right chamber intake grill, enter baffler exhaust chamber by right chamber exhaust outlet, after cooling muffler, discharge via the second row pore on sound proof box under pressure.
6. the engine-driven generator set according to claim 1 or 2 or 3 or 4 or 5, is characterized in that, the position that described chassis corresponds to engine air inlet tube import is also provided with the 5th suction port;
The sidewall that described hot blast exhaust chamber is corresponding with described baffler exhaust chamber has through hole, and engine exhaust pipe is connected with baffler through described through hole;
During engine operation, due to internal negative pressure cylinder, cooling-air is from the 5th suction port, air-strainer is entered through the engine charge mouth of pipe, by entering in cylinder after Carburetor and fuel mix, waste gas after burning enters muffler from outlet pipe, is discharged after noise reduction by the second row pore on sound proof box.
7. engine-driven generator set according to claim 1, is characterized in that, described chassis is rectangular, be included in horizontal plane extend platen surface and from platen surface edge-perpendicular to the side of downward-extension.
8. engine-driven generator set according to claim 5, is characterized in that, described second row pore comprises the exhaust port in described platen surface and the exhaust port on described side, and described second row pore place is also provided with wind scooper.
9. engine-driven generator set according to claim 6, it is characterized in that, on described chassis, the first intake grill and the 5th air inlet are provided with air guide box, the bottom surface of air guide box and side are provided with louvre type import, two are divided into dividing plate, respectively corresponding described first intake grill and the 5th intake grill in the middle part of air guide box.
10. engine-driven generator set according to claim 1, is characterized in that, described chassis is provided with two road wheels and two brake wheels.
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Cited By (4)

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CN105545482A (en) * 2016-02-01 2016-05-04 无锡开普机械有限公司 Silencer cavity air deflector structure for silencing type generator unit
CN105545483A (en) * 2016-02-01 2016-05-04 无锡开普机械有限公司 Air-feeding-noise reducing structure of muting-type electric generator set
CN106089404A (en) * 2016-07-27 2016-11-09 江苏东方康弛机电科技有限公司 Can the generating set of super charge
CN106285893A (en) * 2016-09-20 2017-01-04 浙江中坚科技股份有限公司 Digital frequency conversion generator cooling system

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CN203067085U (en) * 2012-10-12 2013-07-17 苏州晨浩动力设备有限公司 Air-cooling double-cylinder dipolar low-noise diesel generating set
CN203321674U (en) * 2013-03-21 2013-12-04 江苏苏美达机电有限公司 Engine-driven generator set

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CN1130703A (en) * 1994-05-15 1996-09-11 朱振华 Manhole cover of glass fibre reinforced plastics
CN203067084U (en) * 2012-10-12 2013-07-17 苏州晨浩动力设备有限公司 Water cooling double-cylinder dipolar low-noise diesel generating set
CN203067085U (en) * 2012-10-12 2013-07-17 苏州晨浩动力设备有限公司 Air-cooling double-cylinder dipolar low-noise diesel generating set
CN203321674U (en) * 2013-03-21 2013-12-04 江苏苏美达机电有限公司 Engine-driven generator set

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105545482A (en) * 2016-02-01 2016-05-04 无锡开普机械有限公司 Silencer cavity air deflector structure for silencing type generator unit
CN105545483A (en) * 2016-02-01 2016-05-04 无锡开普机械有限公司 Air-feeding-noise reducing structure of muting-type electric generator set
CN106089404A (en) * 2016-07-27 2016-11-09 江苏东方康弛机电科技有限公司 Can the generating set of super charge
CN106089404B (en) * 2016-07-27 2019-04-05 江苏东方康弛机电科技有限公司 It is capable of the generating set of super charge
CN106285893A (en) * 2016-09-20 2017-01-04 浙江中坚科技股份有限公司 Digital frequency conversion generator cooling system
CN106285893B (en) * 2016-09-20 2018-08-10 浙江中坚科技股份有限公司 Digital frequency conversion generator cooling system

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