CN102733940A

CN102733940A - Engine type generator

Info

Publication number: CN102733940A
Application number: CN2012102027419A
Authority: CN
Inventors: 杨希波; 华祥顺; 杨佺; 闵绍明; 邓才兵
Original assignee: CHONGQING RUNTONG DONGLI Co Ltd
Current assignee: CHONGQING RUNTONG DONGLI Co Ltd
Priority date: 2012-06-19
Filing date: 2012-06-19
Publication date: 2012-10-17

Abstract

The invention aims to provide an engine type generator, which has the advantages of simple air channel structure, saving in parts, reasonable utilization of cooling air, effective improvement on the engine cooling effect and easiness for installing and controlling. The engine type generator comprises an engine, a generator, a chassis, a first air channel, a second air channel, a chassis air inlet, a chassis air outlet and a silencer cover, wherein the first air channel is formed by a first cooling structure; the second air channel is formed by a second cooling structure; the silencer cover is set as a common constituent part of the first cooling structure and the second cooling structure; and the first air channel and the second air channel are converged in the silencer cover, so that a third air channel is formed.

Description

Engine generator

Technical field

The present invention relates to a kind of silencing type engine generator, relate in particular to its cooling system.

Background technique

Publication number is that the Chinese patent of CN1800600A discloses a kind of engine generator.This engine generator has the generator cooling duct that the cooling air that makes cooled engine and silencing apparatus engine cooling air channel of passing through and the cooling duct that makes cooled electric generator pass through, and has constituted the engine pipeline of the outside that will be discharged to said engine generator through the cooling air in said engine cooling air channel and will be discharged to the generator pipeline of the outside of said engine generator through the cooling air of said generator cooling duct with integrally formed exhaust duct.In this engine generator; What in fact the cooling system of whole generating machine adopted is engine cooling air channel and the parallel form of generator cooling duct; That is to say; Two results that the cooling channel is separate, such: the one, the cooling air that has cooled off generator in this scheme does not obtain good use; The 2nd, the parts that constitute cooling pipe are more, are unfavorable for the control of product cost.In addition, the mounting structure complicacy of each parts is also wayward.

And in the disclosed engine-driven power generator apparatus of CN101614149A, only be provided with a cooling fan, come the cabinet of difference cooling air cylinder body and generator through the first comparatively complicated cooling structure and second cooling structure.And first cooling structure has comprised engine bonnet, and second cooling structure also comprises the casing cover cap, and the area of engine bonnet and casing cover cap is all bigger, and cost of material is high; And the relation of installing between the cooling structure of this driven power generator apparatus formation cooling duct is complicated, installs wayward.

Summary of the invention

The purpose of this invention is to provide that a kind of air flue structure is simple, parts are economized, can rationally utilize cooling air and effectively improve the engine cooling effect, also can make engine generator simple and easy to control is installed.

For realizing above-mentioned purpose, engine generator of the present invention comprises: motor, and this motor comprises crankcase, bent axle, cylinder block, starter and silencing apparatus; By said engine-driven generator; Be connected respectively to first and second cooling fan of said crankshaft front end and rear end; Be the roughly cabinet of cuboid by what right wall portion, Zuo Bibu, rear wall parts, front wall portion, top wall portion and base plate constituted; Said motor arranges that along the fore-and-aft direction of said base plate said motor, generator, first and second cooling fan are contained in this cabinet by said backplanes support and its bent axle; First cooling structure; It is used for the cooling air of introducing said cabinet through the operation of said first cooling fan through the lead cylinder block of said motor of said generator; Then, the cooling air that cooled off cylinder block is directed being discharged to outside the cabinet, forms first air channel thus; Second cooling structure, it is used for the cooling air of introducing said cabinet through the operation of said second cooling fan guided between cabinet and said motor and is discharged to outside the cabinet, forms second air channel thus; It first is characterised in that: one of them is provided with the cabinet wind inlet in the right side, a left side and the front wall portion near the cabinet of said first cooling fan, near the right side, a left side and the rear wall parts of the cabinet of said second cooling fan, is provided with the cabinet exhaust outlet on one of them; And said silencing apparatus and said cabinet exhaust outlet are oppositely arranged, and make its outlet pipe pass the cabinet exhaust outlet; Around said silencing apparatus, be provided with said muffler cover in muffler cover wherein prepsetting gap; Said muffler cover is set to the common constituent element of said first and second cooling structure; Said first and second air channel is converged in muffler cover and formed the 3rd air channel; Through said the 3rd air channel, will merge together and be discharged to outside the cabinet from said cabinet exhaust outlet from the cooling air in first and second air channel; Like this, also make cabinet wind inlet, cabinet exhaust outlet become the common constituent element of said first and second cooling structure.

In accordance with a first feature of the invention, first cooling structure and second cooling structure are connected, thereby make first air channel that is used for the cooling air cylinder body that forms by first cooling structure through muffler cover; And second air channel that is used to cool off space in the cabinet that forms by second cooling structure, both merge the 3rd air channel in muffler cover, thereby the air channel of whole generating machine flows to and is: the cabinet wind inlet is as the unified inlet of generator cooling air; The cooling air that gets into cabinet afterwards is divided into two; Flow through respectively first and second air channel and flow to muffler cover separately, at this moment, cooling air unites two into one again in muffler cover; Merge into the 3rd air channel by first and second air channel; At last, via the 3rd air channel, cooling air is discharged to outside the cabinet from the unified cabinet exhaust outlet that exports as the generator cooling air.Such setting, the cooling duct of existing special cooling air cylinder body and special cooling fan i.e. first cooling fan, and it is second cooling fan that the special-purpose cooling duct of cooling cabinet inner space and independent cooling fan are arranged again, and it is little to influence each other; And after it is combined into the 3rd air channel, the silencing apparatus of common cooled engine, the utilization ratio of cooling air is high.

The present invention is on the basis of first characteristic, and it second is characterised in that said cabinet wind inlet and cabinet exhaust outlet are separately positioned on the front wall portion and the rear wall parts of said cabinet; Said first cooling structure also comprises: the first cooling fan wind scooper; It holds said first cooling fan, said generator wherein; Its upper shed place is supported with the starter of said motor through the starter cover, and said starter cover is provided with first wind inlet; The cylinder block wind scooper that links to each other with the said first cooling fan wind scooper; Integrated with said muffler cover, as to be connected said cylinder block wind scooper and the said muffler cover cover that is connected; Said connection covers on and is formed with the first mistake ferry on the said muffler cover; Said second cooling structure also comprises: the second cooling fan chamber that is formed by the wall of the back box lid of said engine crankcase and said muffler cover; Take shape in second wind inlet that is used for the said second cooling fan air intake of said back box lid bottom; The cooling air that the second cooling fan chamber is produced directly be discharged in the said muffler cover, be arranged on second on the said muffler cover and cross the ferry.

According to second characteristic of the present invention; First air channel that is limited first cooling structure can cooled electric generator, the front panel of crankcase, cylinder block; Inner space and the surface of motor in cabinet, the back box lid of crankcase of cabinet can be cooled off in second air channel that is limited second cooling structure; Cross the ferry through first and second afterwards; Then discharge thereby merge in the 3rd air channel cooling silencing apparatus that limits muffler cover, guarantee the good cooling effect of engine generator of the present invention with this from the cooling air in first and second air channel.And second wind inlet is arranged on the bottom of back box lid; Main consider from the cooling air of cabinet wind inlet can be from top to bottom, then form the air channel, cabinet inside space of complications and take away the heat in each space of cabinet inside as much as possible from preceding; Simultaneously also emphasis is considered the heat radiation of motor bottom (engine lubricating oil is stored in the machine oil chamber of bottom; Thereby can in engine running, absorb a large amount of heat need dispel the heat through the motor bottom) problem, thus take away the heat bottom the motor more.In addition, the second cooling fan chamber utilizes the wall of back box lid and muffler cover to form, and it is one-body molded with muffler cover to connect cover, can save material, reduce cost, and simplifies installation procedure.

The present invention is on the basis of second characteristic, and it the 3rd is characterised in that: said second cooling structure also comprises the 3rd wind inlet that is used for the said second cooling fan air intake that is arranged at said back box lid top.

According to the 3rd characteristic of the present invention, at the back box lid top the 3rd wind inlet is set, effectively the upper space of the top of the crankcase of cooled engine and cabinet.

The present invention is on the basis of the 3rd characteristic; It the 4th is characterised in that: in the said second cooling fan chamber; On said second and third wind inlet, be coated with the case lid wind scooper, the air draught side that gets into said second cooling fan from the cooling air of second and third wind inlet along the center of said case lid wind scooper with guiding.

According to the 4th characteristic of the present invention, through the guiding of case lid wind scooper, it will be more abundant contacting with the back box lid outer surface of crankcase from the cooling air of second and third wind inlet, thereby be more conducive to take away the heat on the back box lid and help reducing oil temperature.

The present invention is on the basis of second characteristic, and it the 5th is characterised in that: said first and second crossed the ferry and is arranged on said muffler cover front panel inboard right side and left side abreast.

According to the 5th characteristic of the present invention, first and second is crossed the ferry be arranged side by side, can reduce to flow into separately the cooling air interference each other of muffler cover, thereby be beneficial to cooling air through the 3rd air channel and be discharged to outside the cabinet.

The present invention is on the basis of first to five arbitrary characteristic; It the 6th is characterised in that: this engine generator also comprises and being arranged on as the muffler cover exhaust outlet of muffler cover air-out and the rubber-like seal rubber sleeve between the said cabinet exhaust outlet, so that be back in the cabinet to the cooling air of cabinet exhaust outlet is unlikely by muffler cover row.

According to the 6th characteristic of the present invention, the setting of elastic packing gum cover, one of which prevents that cooling air backflow cabinet from influencing the whole cooling effect of generator; Its two, elastic design can increase the adaptability that is connected between muffler cover and the cabinet exhaust outlet, it can not influence connection each other because of the vibrations of generator operation.

The present invention is on the basis of second to five arbitrary characteristic, and it the 7th is characterised in that: said starter is for pulling starter, and this engine generator also comprises: control panel, and it is used for the operation of this engine generator and the output of electric power; Panel slot, the front wall portion that it takes shape in said cabinet recessedly is used to hold and said control panel is installed; Inverter, it is used for current conversion control; Said panel slot and said cabinet wind inlet left and right side are arranged on the said front wall portion side by side, and the starter of bump and the said motor of said panel slot in cabinet is relative, and said inverter and said cabinet wind inlet relatively are arranged in the cabinet; Like this, the cooling air that is got into by the cabinet wind inlet can cool off said inverter; Leave preset clearance space between inherent panel slot of cabinet and the starter.

The 7th characteristic according to the present invention, inverter can make the cooling air that gets into cabinet at first cool off inverter over against the cabinet wind inlet, solve the heat dissipation problem of inverter; Simultaneously; Panel slot and cabinet wind inlet left and right side are arranged in juxtaposition and make and in cabinet, leave preset clearance space between panel slot and the starter, can change when starting electricity into by pulling starting in Starting mode of the present invention, and this space can hold electricity and work the storage battery of employing; That is to say; Under the situation that does not change existing casing structure size, can realize the change of Starting mode, obviously increase degree of freedom in design.

The present invention is on the basis of the 7th characteristic, and it the 8th is characterised in that: the starter handle arrangements of said starter is on said top wall portion.

The 8th characteristic according to the present invention, starter handle arrangements are at the top of generator, and the position is high, are beneficial to operator's operation, and just operator can the mode that under the situation of not too bending over, promptly can pull start engine generator of the present invention.

Description of drawings

Fig. 1 is the stereogram (pull bar is traction state) of the mode of execution of engine generator of the present invention.

Fig. 2 is another angle stereogram (pull bar is non-traction state) of the mode of execution of engine generator of the present invention.

Fig. 3 is the decomposing schematic representation (the part parts are removed) of engine generator shown in Figure 1.

Fig. 4 is the sectional view of engine generator of the present invention.

Fig. 5 is the side view after engine generator shown in Figure 1 removes right wall portion and pull bar.

Fig. 6 is that engine generator shown in Figure 1 removes behind pull bar, the fuel tank plan view behind the top, horizontal cross section.

Fig. 7 is the stereogram that engine generator shown in Figure 2 removes another angle after the rear wall parts.

Fig. 8 is the front elevation (pull bar is non-traction state) after engine generator shown in Figure 1 removes front wall portion and roof front portion.

Fig. 9 is the stereogram of base plate among Fig. 3.

Figure 10 is the stereogram of Fig. 3 mid frame.

Figure 11 is the stereogram of pull bar among Fig. 3.

Figure 12 is the partial enlarged drawing at A place among Figure 10.

Figure 13 is the partial enlarged drawing at B place among Figure 11.

Figure 14 is the partial enlarged drawing at C place among Fig. 5.

Figure 15 is the three-dimensional exploded view of an angle of muffler cover among Fig. 4.

Figure 16 is the stereogram of another angle of muffler cover among Fig. 4.

Figure 17 is the rear view of back box lid among Fig. 4.

Embodiment

Below, the engine generator of one embodiment of the present of invention is described in conjunction with accompanying drawing.The orientation that relates in the explanation is a benchmark with the orientation that indicates among Fig. 1.

To shown in Figure 4, engine generator 89 comprises like Fig. 1: cabinet 20, be roughly cuboid, and constitute by right wall portion 22, left wall portion 23, rear wall parts 24, front wall portion 25, top wall portion 26 and base plate 21, be supported with frame 10 in it; There is pair of wheels 19 to be set to the moving part of cabinet 20 through wheel shaft 191 in the front end both sides of cabinet 20 bottoms; With wheel 19 relative to the other end both sides of cabinet 20 bottoms be provided with a pair of leg 18 and cooperate and can draw the pull bar 28 that engine generator 89 moves with wheel 19, leg 18 and wheel 19 can flatly be placed on the ground engine generator 89; Motor 40; By the generator 70 that these motor 40 one drive, this generator 70 comprises stator 71 and rotor 72; Motor 40 is supported on the base plate 21 together with the generator 70 of its driving; Motor 40 comprises crankcase 41, bent axle 50, cylinder block 42, starter 45, silencing apparatus 46 and is connected respectively to first and

second cooling fan

43,44 of bent axle 50 front-end and back-end; Fuel tank 51; First cooling structure 80; It is used for the cylinder block 42 of the cooling air of introducing cabinet 20 through the operation of first cooling fan 43 through generator 70 guiding motors 40; Then, the cooling air that cooled off cylinder block 42 is directed being discharged to outside the cabinet 20, forms first air channel 81 thus; Second cooling structure 90, it is used for the cooling air that cabinet 20 is introduced in the operation through second cooling fan 44 guided between cabinet 20 and motor 40 and is discharged to outside the cabinet 20, forms second air channel 91 thus; Frame 10, fuel tank 51, motor 40 and generator 70 are contained in this cabinet 20.

The bent axle 50 of motor 40 is arranged along the fore-and-aft direction of the base plate 21 of cabinet 20; And be installed in through four shock absorbing seats 48 on the motor assembly department 211 of base plate 21 (referring to Fig. 9), the front and back ends of bent axle 50 is separately installed with first cooling fan 43 and second cooling fan 44.Frame 10 comprises: be inverted U-shaped left and

right support

12,11; Back end at left and

right support

12,11; Be respectively equipped with frame rear side fixed plate 215; And, respectively be respectively equipped with frame front side fixed plate 216 and wheel shaft fixing part 217, through forward and backward side fixed plate 216,215 of frame and wheel shaft fixing part 217 at the preceding end of left and

right support

12,11; Be connected to left side and right side (promptly being connected on the forward and backward side assembly department 214,213 of the frame that is positioned at base plate 21 left and right sides front and back ends) (referring to Fig. 9, Figure 10) of framework soleplate 21 about left and

right support

12,11 quilts side by side; In the present embodiment, left and

right support

12,11 is formed by steel tube bending, also can be formed by the material integrally casting such as aluminum alloy; Forward and backward

transverse connection

14,13, front and back are connected to the front-end and back-end (referring to Figure 10) at left and

right support

12,11 tops side by side through the hole on it 141,131, its material is the rectangular metal pipe.And fuel tank 51; The top that then is installed on left and

right support

12,11 through four hole 513 correspondences being located at its left and right sides is on the left and right horizontal part 122,112 and covers the top of motor 40; And; Fuel tank 51 is provided with to such an extent that the inboard shape of top wall portion 26 of its end face and cabinet 20 contacts accordingly, and simultaneously, forward and backward

transverse connection

14,13 is positioned at (not shown) on the end face of fuel tank.

That the left and

right wall portion

23,22 of cabinet 20 comprises is removable, constitute the left and right cover plate 231,221 of left and

right wall portion

23,22 constituent elements, also is provided with left and right decorative sheet 232,222 on the right cover plate 231,221.The top wall portion 26 of cabinet comprises that the roof rear portion be made up of the left and right rear portion 262,261 of roof and roof are anterior 263, and the left and right rear portion 262,261 of roof is connected as a single entity with left and

right wall portion

23,22 respectively.The front bottom end both sides of cabinet 20 have and hold the wheel that wheel uses and hold recess 192, the sidewall recess 194 (referring to Fig. 9) of it base plate breach 193 that comprises the left and right sides that is formed on base plate 21 front ends and the corner, bottom that is formed on left and right wall portion 23, the 22 front ends outside.

In near the right side, a left side and the

front wall portion

22,23,25 of the cabinet 20 of first cooling fan 43, on one of them cabinet wind inlet 95 is set, near the right side, a left side and the

rear wall parts

22,23,24 of the cabinet 20 of second cooling fan 44, on one of them cabinet exhaust outlet 96 is set.In the present embodiment, on the front wall portion of cabinet 20 25 and rear wall parts 24, cabinet wind inlet 95 and cabinet exhaust outlet 96 are set respectively.

Like this; The base plate 21 of cabinet 20 is supporting the generator 70 of motor 40 and one driving; Frame 10 is being carried fuel tank 51 and is being fixed on the base plate 21 and with motor 40 frames therein with being frame type; And in the constituent element of cabinet 20 except that base plate, all the other wall portions promptly then through sidewall on frame 10 and the base plate 21 and base plate mounting hole 212 (referring to Fig. 9) be mounted, fixing and form a complete cabinet 20.On the front and back ends sidewall of cabinet 20, be respectively equipped with cabinet wind inlet and

cabinet exhaust outlet

95,96; Left and right exterior bottom at the front end of cabinet 20; Two wheels 19 are accommodated in wheel through wheel shaft 191 respectively to be held in the recess 192; Two independently wheel shaft 191 (also can be the wheel shaft that is connected as a single entity) then an end be fixed on the wheel shaft fixing part 217 that is positioned at frame 10 front bottom end, the other end then reaches the center that wheel holds recess 192.In the rear end of cabinet 20, through two fixing legs 18 of the leg assembly department 189 (referring to Fig. 9) on the base plate 21, then with wheel 19 form cabinet 20 under static state with the steady support on ground.Simultaneously, can cooperate wheel 19 to the forward and backward pull bar 28 that is connected with rotatably through frame 10 in the right side, the left-external side bottom of the rear end of cabinet 20, drawing pull bar 28 can realize engine generator 89 carrying, move.Above-mentioned such configuration makes frame 10 constitute stable, reliable framework, a framework by this with the base plate 21 of cabinet 20; Cabinet 20 each sidewall and roof are able to reinforce, and the especially setting of the forward and backward

transverse connection

13,14 of frame top is when the volume of engine generator 89 increases; Can realize reinforcing to cabinet from the top of cabinet 20, like this, under the situation that guarantees cabinet 20 intensity; Can make the shell body wall attenuation that constitutes cabinet, save cost of material; Motor 40 and fuel tank 51 can be under effective protection of frame 10 thus; Simultaneously, fuel tank 51 is installed on the frame 10 and covers the top of motor 40, and it highly can reduce, and compare thereby be directly installed on the motor with traditional fuel tank, thereby the whole height that can reduce generator is saved height space.In addition, wheel shaft 191, pull bar 28 link to each other with steel pipe frame 10, can significantly improve each parts connection reliability; Wheel 19 is contained in wheel to be held in the recess 192, can save the length and the width spaces of whole engine generator; Can be with pull bar 28 to the forward and backward right side of cabinet rear end, the right outer lower portion of being connected to rotatably; The length of pull bar 28 (length of the tie rod arm of stating promptly 282) compared with prior art can surpass the height of engine generator, when pull bar does not use; Pull bar 28 can rotate forward and be placed on forward on the cabinet 20; That is to say that because the increase of pull bar 28 length increases tie rod arm 282, the operator will be more laborsaving when using pull bar 28 to lift generator.

In above-mentioned cabinet 20, that cabinet goes out,

wind inlet

96,95 is set to lay respectively at cabinet 20 is back, the grid on the

front wall portion

24,25 is cabinet air outlet grate 241 and cabinet inlet air grid 252.The silencing apparatus 46 and the cabinet exhaust outlet 96 of motor 40 are oppositely arranged, and that is to say that it is relative with cabinet air outlet grate 241.The outlet pipe 461 of silencing apparatus 46 is set to pass the hole 242 on the cabinet air outlet grate 241, can directly be discharged to outside the cabinet 20 in order to the high-temp waste gas of motor 40.Around silencing apparatus 46, be provided with prepsetting gap silencing apparatus 46 is covered in muffler cover 47 wherein.This muffler cover 47 comprises inner cover 471 and outer cover 472 (like Figure 15, shown in Figure 16), and inner cover 471 is installed on the motor 40, and outer cover 472 is installed in (not shown) on the inner cover 471.This muffler cover 47 is set to the common constituent element of first and

second cooling structure

80,90; First and

second air channel

81,91 that is formed respectively by first and

second cooling structure

80,90 merges the 3rd air channel 92 in muffler cover 47; Through the 3rd air channel 92, will merge together and be discharged to outside the cabinet 20 from cabinet exhaust outlet 96 (just through cabinet air outlet grate 241) from the cooling air in first and second air channel 81,91.Like this, not only muffler cover 47 becomes the common constituent element of first and

second cooling structure

80,90, and cabinet wind inlet 95, cabinet exhaust outlet 96 also become the common constituent element (can with reference to shown in Figure 7) of first and

second cooling structure

80,90.

Extremely shown in Figure 7 like Fig. 4.First cooling structure 80 not only comprises foregoing cabinet wind inlet 95, muffler cover 47 and cabinet exhaust outlet 96; It also comprises: be installed in the first cooling fan wind scooper 431 on the front panel 411 that motor 40 front ends just are installed in crankcase 41, first cooling fan 43 and generator 70 that this first cooling fan wind scooper 431 will be connected in bent axle 50 front ends hold wherein; Position over against first cooling fan 43 on this first cooling fan wind scooper 431 is provided with the circular open (not shown); This circular open place is supported with the starter 45 of motor 40 through starter cover 451, and starter cover 451 is provided with first wind inlet 97; With the cylinder block wind scooper 421 that the first cooling fan wind scooper 431 links to each other, this cylinder block wind scooper 421 holds cylinder block 42 and forms, and itself and the first cooling fan wind scooper 431 are connected in its front side end; 47 integrated with muffler cover, be connected cylinder block wind scooper 421 and muffler cover 47 be connected cover 481; These connection cover 481 parts (being the top) are one-body molded with the outer cover 472 of muffler cover 47; Another part (being sidepiece and bottom) is one-body molded with the inner cover 471 of muffler cover 47; After inside and outside cover 471,472 is installed together, connects cover 481 and promptly first cross ferry 93 (referring to Figure 15, Figure 16) at irregular opening of (being on the diapire 473 of inner cover 471) formation on the muffler cover 47.Cross the relative the other end (its front end just) in ferry 93 and connect cover 481 forming first, then be connected in the rear side end of cylinder block wind scooper 421 with cylinder block wind scooper 421.

Likewise; Second cooling structure 90 not only comprises foregoing cabinet wind inlet 95, muffler cover 47 and cabinet exhaust outlet 96; It also comprises in addition: the second cooling fan chamber G; This second cooling fan chamber G wherein accommodates second cooling fan 44 that is connected in bent axle 50 rear ends by airtight the forming of wall (front side that is inner cover diapire 473 also can be described as bottom wall outer, referring to Figure 16) of bowl-type groove on the back box lid 412 of engine crankcase 41 and muffler cover 47; Take shape in second wind inlet 98 (referring to Figure 17) that is used for second cooling fan, 44 air intakes of back box lid 412 bottoms; The cooling air that the second cooling fan chamber G is produced directly be discharged in the muffler cover 47, be arranged on the muffler cover 47 (specifically referring to be arranged on the diapire 473 in order to the inner cover 471 of the muffler cover 47 of the part that forms the second cooling fan chamber G) referring to Figure 15, Figure 16 second cross ferry 94.

Thus, through the operation of first cooling fan 43, cooling air is got in the cabinet 20 by cabinet wind inlet 95, is drawn into the front panel 411 of the first cooling fan wind scooper, 431 interior cooled electric generators 70 and crankcase 41 through first wind inlet 97; Afterwards, under the guiding of the first cooling fan wind scooper 431, cooling air is blown out by the right side of the first cooling fan wind scooper 431 and after under the guiding of cylinder block wind scooper, by forward direction, holds cooling air cylinder body 42; Cooled off the cooling air of cylinder block 42, and under the guiding that connects cover 481, crossed ferry 93 through first and get into muffler cover 47.And meanwhile; Through the operation of second cooling fan 44, cooling air is got in the cabinets 20 by cabinet wind inlet 95 equally, and cooling air will at first from front to back, flow and take away the heat on the surface that is exposed to the motor 40 in the cabinet 20 and accumulate in the interior heat of cabinet 20 because of radiation along the void space in the cabinet 20 is tortuous from top to bottom; Again through second wind inlet 98; The cooling air that has absorbed heat in the cabinet 20 gets into the second cooling fan chamber G, further cools off the back box lid 412 of crankcase 41, subsequently; Cooling is the cooling air of case lid 412 later, crosses the ferry 94 same muffler covers 47 that get into through second.That is to say,, merge together and between muffler cover 47 and silencing apparatus 46, form the 3rd air channel 92 through muffler cover 47 in first cooling structure 80 first air channel 81 that is limited and second air channel 91 that is limited second cooling structure 90.So, from the cooling air in first and

second air channel

81,91, after will continuing to cool off silencing apparatus 46 through the 3rd air channel 92, be discharged to outside the cabinet 20 by cabinet exhaust outlet 96.

The benefit that is provided with like this is: first and

second air channel

81,91 is relatively independent, and both cooperate ability cooling engine formula generator 89 part except that silencing apparatus 46, and are simple in structure; Simultaneously; Independent separately setting of first and

second cooling fan

43,44 that cooling air is flowed along first and

second air channel

81,91; Do not disturb mutually; Can reach the air quantity size of adjustment through the cooling air in first and

second air channel

81,91 through first and

second cooling fan

43,44 of concrete adjustment, it is comparatively convenient to adjust; In addition, muffler cover 47 is simple in structure, realizes converging of first and

second air channel

81,91 easily, and utilizes the cooling air continuation cooling after converging to cover in silencing apparatus 46 wherein, has effectively improved the utilization ratio of cooling air.In a word, setting can be under the situation of the cooling effect that guarantees engine generator like this, makes that the modular construction that constitutes cooling structure or air channel is simple, quantity is few.

Further, like Fig. 4, shown in Figure 17, second cooling structure 90 also comprises the 3rd wind inlet 99 that is used for second cooling fan, 44 air intakes that is arranged at back box lid 412 tops.Rely on this 3rd wind inlet 99, under the effect of second cooling fan 44, the cooling air that gets in the cabinet 20 will get into the second cooling fan chamber G along the radiating fin (not indicating among the figure) at crankcase 41 tops, thereby emphasis cools off the top of crankcase 41.

Further again; As shown in Figure 4; In the second cooling fan chamber G, on second and

third wind inlet

98,99, be coated with the case lid wind scooper 441 of dish shape, to guide the air draught side that gets into second cooling fan 44 along the center of this case lid wind scooper 441 from the cooling air of second and third wind inlet 98,99.Because the guiding of case lid wind scooper 441; Cooling air is got into by second and

third wind inlet

98,99 and when getting into the air draught side of second cooling fan 44; Its path increases, increase with time of contact of back box lid 412, obviously more helps the cooling of back box lid 412 and finally cools off whole motor 40 better.

Like Fig. 7, Figure 15, shown in Figure 16, first and second is crossed

ferry

93,94 and is arranged on right side and the left side that muffler cover 47 front panels also are inner cover diapire 473 inboards abreast.More particularly, first crosses the inboard most of position, right side of inner cover diapire 473 (being its front panel) that ferry 93 has occupied muffler cover 47, and it constitutes the main air port that muffler cover 47 the wind comes from; Second crosses ferry 94 then only occupies the inboard position, the upper left corner, left side of muffler cover 47 front panels (being inner cover diapire 473), constitutes the less important air port that muffler cover 47 the wind comes from.So be provided with, thereby the cooling air that can reduce respectively from first and

second air channel

81,91 is converging the cooling that back phase mutual interference guarantees that cooling air is realized silencing apparatus 46 through the 3rd air channel 92.

Further; Between as the muffler cover exhaust outlet 474 of muffler cover 47 air-out and cabinet exhaust outlet 96, be provided with rubber-like seal rubber sleeve 54; So that be back in the cabinet 20 to the cooling air of cabinet exhaust outlet 96 is unlikely by muffler cover 47 row; Simultaneously, can increase the adaptability that is connected between muffler cover 47 and the cabinet exhaust outlet 96, it can not influence connection each other because of the vibrations of engine generator 89 operations yet.

Get back to Fig. 3, Fig. 6, Fig. 8, the starter 45 of engine generator 89 of the present invention is for pulling starter, and this engine generator 89 also comprises: control panel 253, and it is used for the operation of this engine generator 89 and the output of electric power; Panel slot 254, its one, recessed the front wall portion 25 that takes shape in cabinet 20 are used to hold and installation and control panel 253; Inverter 53, it is used for current conversion control.Panel slot 254 is that cabinet inlet air grid 252 left and right sides are arranged on the front wall portion 25 of cabinet 20 side by side with cabinet wind inlet 95; The bump 255 of this panel slot 254 in cabinet 20 is relative with the starter 45 of motor 40, and inverter 53 relatively is arranged in the cabinet 20 with cabinet wind inlet 95 (being cabinet inlet air grid 252).Simultaneously, see that inverter 53 is left and right arranged side by side with the bump 255 of panel slot 254 from left and right direction.Like this, the cooling air that is got into by cabinet wind inlet 95 can cool off inverter 53; Between cabinet 20 inherent panel slots 254 and the starter 45 preset clearance space F is arranged.Both solved the heat dissipation problem of inverter 53; Also can change when starting electricity into by pulling starting in Starting mode of the present invention; The clearance space F that reserves can hold electricity and work the storage battery of employing; Not changing separately under the situation of cabinet 20 shapes, can realize the change of Starting mode, obviously increase degree of freedom in design.

Simultaneously, the starter handle 452 of starter 45 links to each other with starter 45 through starter drag-line 453, during pulling starter handle 452, can realize the starting of generator.And this starter handle 452 is disposed on the top wall portion 26, and specifically, it is disposed on the roof anterior 263 of cabinet top wall portion 26 and is positioned at top one side of starter 45.When operator desire to grip starter handle 452, can under the situation of not too bending over, can grip, greatly make things convenient for start-up function.

Again referring to Figure 11, be used for cooperating to move the pull bar 28 of engine generator 89 with two wheels 19, it comprises pull bar cross handle 281, its be used for operator's held with lift, push-and-pull engine generator 89; Be connected the tie rod arm 282 of pull bar cross handle 281 left and right ends; Two pull rod shaft 288 that are positioned at tie rod arm 282 ends that pull bar 28 is rely and rotated.And the installation of pull bar 28 and operation then realize through pull bar operating mechanism 56.

To shown in Figure 14, pull bar operating mechanism 56 comprises like Fig. 5, Figure 10 and Figure 12: one of them is provided with locking aperture 283 locking pull bar 28 when being used to draw engine generator 89 to pull rod shaft 288 at least; 288 that cooperate with pull rod shaft, be installed on two pull bar axle sleeves 181 of vertical component effect 121,111 bottoms, left and right back of left and

right support

12,11 respectively; Stop pin 183, it is arranged on the corresponding pull bar axle sleeve 181 corresponding to locking aperture 283, its upper end with after the drag-line 562 stated link to each other, the hole 184 on the pull bar axle sleeve 181 is passed in its lower end, and through operating, this stop pin 183 can insert or withdraw from locking aperture 283; Drag-line control piece 563; Its rear side by the rear wall parts 24 of cabinet 20 pass hole 566 be installed on the drag-line control piece fitting seat 567 that is positioned at rear wall parts 24 front sides and make its away from pull bar axle sleeve 181 (referring to Fig. 3; Certainly; It also can pass rear wall parts 24 and be installed on the frame 10), between itself and stop pin 183, be connected with drag-line 562.In fact this drag-line 562 comprises the steel wire drag-line cover outer with being enclosed within steel wire (indicating among the figure), the drag-line cover through drag-line support 565 by fastening between drag-line control piece 563 and stop pin 183.When rotation drag-line control piece 563, this drag-line control piece 563 moves with the actual stop pin that links to each other 183 of steel wire steel wire in the scrolling drag-line 562 and drive towards withdrawing from locking aperture 283 directions, and final, stop pin can withdraw from locking aperture 283; Spring 561, it passes drag-line 562 ground and is connected on the stop pin 183, and spring 561 makes stop pin 183 towards the position motion of inserting locking aperture 283.In the present embodiment; Be equipped with locking aperture 283 on two pull rod shaft 288; Correspondingly, on two pull bar axle sleeves 181, all being provided with 183, two stop pins 183 of stop pin then links to each other with same drag-line control piece 563 and controlled by it through two drag-lines 562.When pull bar 28 is installed; The pull rod shaft 288 that will be positioned at left and right end is passed the hole 279 of side lower part after the left and right wall portion that is arranged on cabinet 20 respectively, the through hole 187 that passes pull rod shaft 288 centers with screw again with its can before and after be fixed on rotatably on the tapped hole 289 that is positioned at pull bar axle sleeve 181 bottoms.

Generally, pull bar 28 is placed on forward on the cabinet 20, and at this moment, stop pin 183 does not cooperate with locking aperture 283.When needs traction engine generator 89; Pull bar 28 is rotated to the predeterminated position at cabinet 20 rears backward by the placement location of cabinet 20, and correspondingly, pull rod shaft 288 also rotates to predeterminated position; In this position; Stop pin 183 just aligns with locking aperture 283, and under the effect of spring 561, stop pin 183 inserts locking aperture 283 and locks pull bar 28.At this moment, operator lift pull bar 28, and the rear end of engine generator 89 will break away from ground, cooperate the wheel 19 of generator front end, operator's push-and-pull forward or backward, mobile engine generator 89.When mobile engine generator 89 finishes or need not draw engine generator 89; Operation pull bar operating mechanism 56; I.e. rotation (be rotated counterclockwise or turn clockwise) drag-line control piece 563 wherein according to the Placement of drag-line 562 and drag-line control piece 563 is different; Steel wire in the drag-line 562 will drive the direction motion of stop pin 183 to drag-line control piece 563, and the effect that makes stop pin 183 overcome spring 561 is moved to the direction that withdraws from locking aperture 283.After stop pin 183 withdrawed from locking aperture 283 fully, rotating rod 28 was forward promptly removed the locking to pull bar 28, and pull bar 28 is placed on (being common placement location) on the cabinet 20 forward again.Pull bar 28 is so controlled design, and is simple in structure, easy to operate, reliable.

In ensuing explanation; It should be noted that; What Figure 12 showed mainly is the partial enlarged drawing of the pull bar axle sleeve 181 of engine generator left rear side; What cooperate explanation with it should be the partial enlarged drawing of the pull rod shaft 288 of pull bar 28 left ends; But the partial enlarged drawing of the pull rod shaft 288 of this left end does not show in this manual, cooperates Figure 12 to describe and use accompanying drawing 13 instead, and Figure 13 shows is the partial enlarged drawing of the pull rod shaft 288 of pull rod shaft 288 with left end pull bar 28 right-hand members that are symmetric relation.

Like Figure 12, shown in Figure 13; At the axle lug boss 285 that promptly on the pull rod shaft 288 of pull bar 28 right-hand members, being provided with on one of them at least of two pull rod shaft 288 is used for rotary stopper, with it accordingly, (correspondence does not illustrate on corresponding right lateral side pull bar axle sleeve 181, to be provided with axle sleeve limited part 182; Shown in Figure 12 is the axle sleeve limited part 182 on the left rear side pull bar axle sleeve 181; Down with), so that pull bar 28 is when rotating to predeterminated position backward, the axle confined planes 186 on the axle lug boss 285 is in contact with one another and limits it with the axle sleeve confined planes 185 on the axle sleeve limited part 182 and continues rotation backward; At this moment, stop pin 183 also just inserts locking aperture 283 and makes pull bar 28 lockings.In the present embodiment, an all corresponding lug boss 285 and the axle sleeve limited part 182 of being provided with on two pull rod shaft 288 and two the pull bar axle sleeves 181.So be provided with, the location is accurately avoided rotating too fast and stop pin 183 is missed insert locking aperture 283 in the time of can making pull bar 28 rotate to locked position backward.

Return shown in Figure 3ly, on the top wall portion 26 of cabinet 20, be formed with the pull rod slot 286 that to hold pull bar cross handle 281; On the left and right cover plate 231,221 of cabinet 20, has the left and right connecting part 233,223 that contacts with tie rod arm 282; Be placed on 20 last times of cabinet at pull bar 28, when just pull bar 28 was in common placement location, pull bar cross handle 281 combined together with left and right connecting part 233,223 with pull rod slot 286, tie rod arm 282.Can guarantee that like this, on the one hand generator pull bar 28 placements when work steadily can not produce vibrations with the work of generator; On the other hand, the pull bar cross handle be placed in the pull rod slot not can extra increase generator height; Simultaneously, also can increase the aesthetic feeling of the exterior of commodity of generator complete machine.

Further, above-mentioned pull rod slot 286 is one-body molded on roof anterior 263, and also is formed with the groove 287 that holds operator's finger when mentioning pull bar cross handle 281 in a side of pull rod slot 286, and in the present embodiment, groove 287 is positioned at the rear side of pull rod slot 286.Simultaneously, on roof anterior 263, the left and right end in the front side of pull rod slot 286 also is formed with handle groove 456 and pouring orifice via hole 512 respectively.The pouring orifice 511 of fuel tank 51 just is set to pass pouring orifice via hole 512 and reaches outside the cabinet 20; Handle hole 454 and handle limiting board 455 that the starter drag-line 453 of starter 45 then passes on the handle groove 456 in succession are connected with starter handle 452; And make starter handle 452 can not withdraw from handle limiting board 455, and handle limiting board 455 is fixed on the handle groove 456 and cover handle hole 454.Because of the position-limiting action of handle limiting board 455, after each starting is accomplished, starter handle 452 will reset and be limited in the handle groove 456 in order to operation next time (referring to Fig. 1, Fig. 8).The design of one side groove 287 of pull rod slot 286 mentions operator or more convenient when putting down pull bar 28.In addition, pouring orifice 511 and starter handle 452 are arranged on the roof easy-to-operat personnel fuel up and starter generator.

Like Fig. 2, shown in Figure 5, engine generator of the present invention also comprises handle 27, and it is installed on the forward and backward

transverse connection

14,13 of frame 10 through hole 277 (referring to Fig. 3) correspondence on the top wall portion 26 of cabinet 20.In the present embodiment; Two grip 27 are installed in respectively on the hole 142 in hole 132 and left side on right side on the forward and backward transverse connection 14,13 (referring to Figure 10); Between the hole 277 on handle 27 and the top wall portion 26, be provided with on the roof that handle gum cover 271 is fastened on hole 277 peripheries (referring to Fig. 2).Therefore; Need not use pull bar 28 to move, carry under the situation of engine generator 89; Can generator be lifted through handle 27, because the left and right side of two grip, 27 separation generators, and height is consistent relatively in its position; Two operator's equilibriums that interfere with each other, exert oneself unlikely when lifting can realize moving of generator comparatively easily.In addition, handle 27 is installed on the forward and backward

transverse connection

14,13 of frame 20, can effectively increases the reliability that handle 27 is installed, used.

The present invention is not limited to the engine generator in the foregoing description, and different change designs can be arranged, as long as in the scope that does not break away from main points of the present invention, is still protected by claim of the present invention.

Claims

1. an engine generator (89), this engine generator comprises:

Motor (40), this motor comprise crankcase (41), bent axle (50), cylinder block (42), starter (45) and silencing apparatus (46);

Generator (70) by said motor (40) driving;

Be connected respectively to first and second cooling fan (43,44) of said bent axle (50) front-end and back-end;

The roughly cabinet of cuboid (20) that is by right wall portion (22), Zuo Bibu (23), rear wall parts (24), front wall portion (25), top wall portion (26) and base plate (21) formation; Said motor (40) is supported by said base plate (21) and its bent axle (50) is arranged along the fore-and-aft direction of said base plate (21); Said motor (40), generator (70), first and second cooling fan (43,44) are contained in this cabinet (20);

First cooling structure (80); It is used for the cooling air of introducing said cabinet (20) through the operation of said first cooling fan (43) through the lead cylinder block (42) of said motor (40) of said generator (70); Then; The cooling air that cooled off cylinder block (42) is directed being discharged to outside the cabinet (20), forms first air channel (81) thus;

Second cooling structure (90), it is used for the cooling air of introducing said cabinet (20) through the operation of said second cooling fan (44) guided between cabinet (20) and said motor (40) and is discharged to outside the cabinet (20), forms second air channel (91) thus; It is characterized in that,

At the right side, a left side and front wall portion (22 near the cabinet (20) of said first cooling fan (43); 23; 25) one of them is provided with cabinet wind inlet (95) in; One of them is provided with cabinet exhaust outlet (96) in the right side, a left side and rear wall parts (22,23,24) near the cabinet (20) of said second cooling fan (44); And

Said silencing apparatus (46) is oppositely arranged with said cabinet exhaust outlet (96), and makes its outlet pipe (461) pass said cabinet exhaust outlet (96); At said silencing apparatus (46) all around, be provided with prepsetting gap said silencing apparatus (46) is covered in muffler cover (47) wherein; Said muffler cover (47) is set to said first and second cooling structure (80; 90) common constituent element; Said first and second air channel (81,91) is converged in muffler cover (47) and formed the 3rd air channel (92), through said the 3rd air channel (92); To merge together and outside said cabinet exhaust outlet (96) is discharged to cabinet (20) from the cooling air of first and second air channel (81,91); Like this, also make cabinet wind inlet (95), cabinet exhaust outlet (96) become the common constituent element of said first and second cooling structure (80,90).

2. engine generator as claimed in claim 1 is characterized in that,

Said cabinet wind inlet (95) and cabinet exhaust outlet (96) are separately positioned on the front wall portion (25) and the rear wall parts (24) of said cabinet (20);

Said first cooling structure (80) also comprises: the first cooling fan wind scooper (431); It holds said first cooling fan (43), said generator (70) wherein; Its upper shed place is supported with the starter (45) of said motor (40) through starter cover (451), and said starter cover (451) is provided with first wind inlet (97); The cylinder block wind scooper (421) that links to each other with the said first cooling fan wind scooper (431); Integrated with said muffler cover (47), be connected said cylinder block wind scooper (421) and said muffler cover (47) be connected cover (481); Said connection cover (481) is formed with first and crosses ferry (93) on said muffler cover (47);

Said second cooling structure (90) also comprises: the second cooling fan chamber (G) that is formed by the wall of the back box lid (412) of said engine crankcase (41) and said muffler cover (47); Take shape in second wind inlet (98) that is used for said second cooling fan (44) air intake of said back box lid (412) bottom; The cooling air that the second cooling fan chamber (G) is produced directly be discharged in the said muffler cover (47), be arranged on second on the said muffler cover (47) and cross ferry (94).

3. engine generator as claimed in claim 2 is characterized in that,

Said second cooling structure (90) also comprises the 3rd wind inlet (99) that is used for said second cooling fan (44) air intake that is arranged at said back box lid top.

4. engine generator as claimed in claim 3 is characterized in that,

In the said second cooling fan chamber (G); At said second and third wind inlet (98; 99) be coated with case lid wind scooper (441) on, the air draught side that gets into said second cooling fan from the cooling air of second and third wind inlet (98,99) along the center of said case lid wind scooper (441) with guiding.

5. engine generator as claimed in claim 2 is characterized in that,

Said first and second crossed ferry (93,94) and is arranged on said muffler cover (47) front panel inboard right side and left side abreast.

6. like the described arbitrary engine generator of claim 1 to 5, it is characterized in that,

This engine generator (89) also comprises and being arranged on as the muffler cover exhaust outlet (474) of muffler cover (47) air-out and the rubber-like seal rubber sleeve (54) between the said cabinet exhaust outlet (96), so that be back in the cabinet (20) to the cooling air of cabinet exhaust outlet (96) is unlikely by muffler cover (47) row.

7. like the described arbitrary engine generator of claim 2 to 5, it is characterized in that,

Said starter (45) is for pulling starter, and

This engine generator (89) also comprises: control panel (253), and it is used for the operation of this engine generator (89) and the output of electric power; Panel slot (254), the front wall portion (25) that it takes shape in said cabinet (20) recessedly is used to hold and said control panel (253) is installed; Inverter (53), it is used for current conversion control; Said panel slot (254) and said cabinet wind inlet (95) left and right side are arranged on the said front wall portion (25) side by side; The bump (255) of said panel slot (254) in cabinet (20) is relative with the starter (45) of said motor (40), and said inverter (53) is oppositely disposed in the cabinet (20) with said cabinet wind inlet (95);

Like this, the cooling air that is got into by cabinet wind inlet (95) can cool off said inverter (53); Leave preset clearance space (F) between inherent said panel slot of cabinet (20) (254) and the said starter (45).

8. engine generator as claimed in claim 7 is characterized in that,

The starter handle (452) of said starter (45) is arranged on the said top wall portion (26).