CN202732084U

CN202732084U - Engine for generator

Info

Publication number: CN202732084U
Application number: CN 201220288261
Authority: CN
Inventors: 杨希波; 杨佺
Original assignee: CHONGQING RUNTONG DONGLI Co Ltd
Current assignee: Chongqing Runtong Technology Co Ltd
Priority date: 2012-06-19
Filing date: 2012-06-19
Publication date: 2013-02-13
Anticipated expiration: 2022-06-19

Abstract

The utility model provides an engine for a generator. The engine for the generator has the advantages that the air channel structure is simple, components are saved, cooling air can be reasonably utilized, the cooling effect of the engine can be effectively improved, and the mounting can be simple and easy to control. The engine comprises a generator, an engine, a first cooling structure, a second cooling structure and a muffler cover, wherein the engine is used for driving the generator, the first cooling structure is used for forming a first cooling air channel which is used for cooling the generator and a cylinder body of the engine, the second cooling structure is used for forming a second cooling air channel which is used for cooling a crankshaft case of the engine, the muffler cover consists of an inner cover and an outer cover, the muffler cover and a muffler are arranged in a gapped manner and form a third cooling air channel which is used for cooling the muffler, and the third cooling air channel is communicated with the first cooling air channel and the second cooling air channel respectively.

Description

The generator motor

Technical field

The utility model relates to the generator motor, relates in particular to cooling duct.

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 engine cooling air channel that the cooling air that makes cooled engine and silencing apparatus passes through and the cooling duct that makes cooled electric generator are passed through, and has consisted of the engine pipeline of the outside that will be discharged to by the cooling air in described engine cooling air channel described engine generator and will be discharged to by the cooling air of described generator cooling duct the generator pipeline of the outside of described engine generator with integrally formed exhaust duct.In this engine generator, what in fact the cooling of its motor was adopted is the parallel form of engine cooling air channel and generator cooling duct, that is to say, two cooling channels are independently, such result: the one, and the cooling air that has cooled off generator in this scheme is not well utilized; The 2nd, the parts that consist of cooling pipe are more, are unfavorable for the control of product cost.In addition, the mounting structure complexity of each parts is also wayward.

The model utility content

The purpose of this utility model provides that a kind of air flue structure is simple, parts are economized, and can rationally utilize cooling air and Effective Raise engine cooling effect, also can make generator motor simple and easy to control is installed.

For achieving the above object, generator motor of the present utility model, comprise that generator reaches the motor that is used for driving described generator, its First Characteristic is, this motor also comprises: the first cooling structure, have the first cooling fan of bent axle one end that is connected to motor, this first cooling structure is used to form the first cooling duct of the cylinder block of cooled electric generator, motor; The second cooling structure has the second cooling fan of the bent axle the other end that is connected to motor, and this second cooling structure is used to form the second cooling duct of the crankcase of cooled engine; By the muffler cover that inner cover and outer cover form, itself and silencing apparatus arrange and form the 3rd cooling duct of cooling silencing apparatus with a gap, and the 3rd cooling duct is connected with first and second cooling duct respectively.

The utility model is on the basis of First Characteristic, Second Characteristic is, the diapire of inner cover is set to the part of the second cooling structure, the case lid of itself and motor forms the second cooling fan holding space that holds the second cooling fan, this second cooling fan holding space have the first intake grill that takes shape in the case lid bottom and be communicated with the 3rd cooling duct, be opened on the first connection mouth on the diapire.

The utility model is on the basis of Second Characteristic, and the 3rd is characterised in that, the second cooling fan holding space also has the second intake grill that takes shape in the case lid top.

The utility model is on the basis of second or three features, and the 4th is characterised in that, also has to guide the cooling air that is entered by first and second intake grill to flow to the case lid wind scooper of the second cooling fan along its center between case lid and the second cooling fan.

The utility model is on the basis of First Characteristic, the 5th is characterised in that, be formed with the connecting tube that connects first and third cooling duct on the muffler cover, this connecting tube one end and the first cooling duct are connected in the cylinder block periphery, and the other end forms the second connection mouth that is communicated with the 3rd cooling duct at muffler cover.

The utility model is on the basis of the 5th feature, and the 6th is characterised in that, connecting tube comprises pipe top and the pipe bottom that links to each other with the pipe top, and the outer cover of pipe top and silencing apparatus is one-body molded, and the pipe bottom is one-body molded with inner cover.

The utility model is on the basis of first and second or five arbitrary features, and the 7th is characterised in that, vertically is provided with the isolating plate that can separate from the cooling air of first and second cooling duct on the diapire of inner cover.

According to First Characteristic of the present utility model, be used for the cylinder block of cooled electric generator, motor, from the cooling air of the first cooling duct and be used for the crankcase of cooled engine, from the cooling air of the second cooling duct, converge to the 3rd cooling duct that is formed by the gap between muffler cover and the silencing apparatus by muffler cover and cool off silencing apparatus, thereby realize the maximum using of cooling air, can effectively reduce the motor running temperature.And muffler cover is designed to inside and outside cover, makes installation more convenient reliable.

According to Second Characteristic of the present utility model, muffler cover not only is used to form the 3rd cooling duct, and the diapire of its inner cover is set to the part of the second cooling structure and is used to form the second cooling duct, compare with existing the second independent cooling duct, can reduce parts, a cover that forms muffler cover is multiplex; Simultaneously, its first intake grill is opened in the case lid bottom, can realize the crankcase bottom of motor, the cooling of case lid.

According to the 3rd feature of the present utility model, the cooling air that can make external engine is flowed into by the second intake grill that is located at the second cooling duct on the case lid along the top surface of engine crankcase, thus the top of cooled engine crankcase.

According to the 4th feature of the present utility model, the cooling air that is entered by first and second intake grill, the second cooling fan will be under the guiding of case lid wind scooper leads from its center portion, make the course of cooling air become S shape, increase the time of contact of itself and motor case lid and increased its area of contact, thereby be conducive to take away more heat, reach better cooling effect.

According to the 5th feature of the present utility model, only use muffler cover, just can realize the connection of first and third cooling duct, and not increase extra parts that one cover of muffler cover is multiplex from another angle explanation the utility model, has saved the quantity of parts.

According to the 6th feature of the present utility model, connecting tube is divided into pipe top and pipe bottom and is shaped in respectively on the outer cover and inner cover of muffler cover, makes the connected element of first and third cooling duct simple in structure, and easy for installation.In conjunction with Second Characteristic, can find out good result of the present utility model: the inner cover with muffler cover is installed on the motor first, at this moment, inner cover forms the second cooling structure and forms the first connection mouth that is connected with the 3rd cooling duct with the motor case lid, simultaneously, link to each other bottom the pipe of formation connecting tube and with the first cooling duct.Then fix a silencer, and outer cover is fastened and is fixed on the inner cover, like this, form the 3rd cooling duct, simultaneously, the pipe top of connecting tube connects into complete connecting tube to realize being connected of first and third cooling duct with the pipe bottom.Thereby, with the formation of second and third cooling duct and interconnect, and a plurality of problems of the connection of first and third cooling duct, all ascribe to the inside and outside cover of muffler cover installation, arrange on the problem, simple installation easily capable and simple in structure, economize number of components.

According to the 7th feature of the present utility model, because first and second cooling duct links to each other with the 3rd cooling duct respectively, the wind speed, air quantity etc. that may occur during design from the cooling air of first and second cooling duct are inconsistent, therefore cooling air phase mutual interference when entering the 3rd cooling duct that isolating plate is avoided first and second cooling duct is set, thereby better cools off better cooled engine of silencing apparatus.

Description of drawings

Fig. 1 is the stereogram that the utility model embodiment's generator is used motor.

Fig. 2 be among Fig. 1 generator with motor rear-right apparent direction stereogram.

Fig. 3 be among Fig. 1 generator with motor along bent axle vertically to sectional view.

Fig. 4 is the decomposing schematic representation of muffler cover parts among Fig. 1.

Fig. 5 is the stereogram after the muffler cover parts are fastened among Fig. 1.

Fig. 6 is the rear view after the muffler cover parts are fastened among Fig. 1.

Fig. 7 is the rear view (removing muffler outer hood) of Fig. 1.

Fig. 8 is the rear view of Fig. 1 raising middle flask cover.

Fig. 9 is the A-A line sectional view of handle among Fig. 8.

Figure 10 is the front elevation of case lid wind scooper among Fig. 3.

Figure 11 is B-B line sectional view among Figure 10.

Among the figure, the 10th, motor, the 20th, generator, the 13rd, hand starter, 112 is first cooling fans, the 134th, the starter cover, 131 is first cooling fan wind scoopers, the 122nd, and the cylinder block wind scooper, 132 is the 3rd intake grills, the 14th, case lid, 172, the 173rd, in the muffler cover, outer cover, the 174th, connecting tube, 141,142 is first, two intake grills, 176,177 is first, two connection mouths, 178,135 is first, two exhaust outlets, G are the first cooling fan-generator accommodating chambers, and F is the second cooling fan accommodating chamber, C, D, E is first, two, three cooling ducts, 30,40,50 is first, two, three cooling structures.

Embodiment

Below, the generator motor of a mode of execution of the present utility model is described by reference to the accompanying drawings.The orientation that relates in the explanation, the orientation that indicates in Fig. 1 is as benchmark.

Fig. 1, Fig. 2 are the utility model embodiment's generators with the stereogram of the different direction of observations of motor, Fig. 3 be among Fig. 1 generator with motor along bent axle vertically to sectional view.Generator comprises with motor: motor 10, and by the generator 20 of motor 10 drivings.Motor 10 mainly comprises crankcase 11, cylinder block 12, hand starter 13, air filter 15, Carburetor 16, silencing apparatus 17 and fuel tank (owing to generator is arranged on the frame usually with fuel tank, so not shown).Have bent axle 111 in the crankcase 11, during motor 10 work, bent axle 111 rotates freely by its radial journal bearing (not marking among the figure) at crankcase 11.Generator 20 comprises stator 22 and rotor 21.

Front end at motor 10, be that the front end of bent axle 111 connects successively on the front side case lid that generator 20 and the first cooling fan 112, the first cooling fan wind scoopers 131 are installed in crankcase 11 (indicating among the figure) and generator 20 and the first cooling fan 112 covers are entered wherein to form the first cooling fan-generator accommodating chamber G; The first cooling fan wind scooper 131 has opening (indicating among the figure) over against cover wall (not shown) position, the front side of the first cooling fan 112, and with the cooling air suction port as the first cooling fan 112, there are hand starter 13 and starter cover 134 in the position corresponding with this opening in the first cooling fan wind scooper 131 upper supports.On the starter cover 134 in the front side and peripheral side be provided with many group the 3rd intake grills 132, simultaneously, also form a plurality of the 3rd intake grills 132 between starter cover 134 and the first cooling fan wind scooper 131, these the 3rd intake grills 132 form air intakes of the first cooling fans 112 jointly, have also formed the air intake of the first cooling fan wind scooper 131 or the first cooling fan-generator accommodating chamber G.In addition, at the top of the front side of crankcase 11 case lid, which is provided with 1 to 2 the second exhaust outlet 135 so that the cooling air level to the top that blows to crankcase 11.

Under the operation of the first cooling fan 112, enter the cooling air of the first cooling fan wind scooper 131 (the first cooling fan-generator accommodating chamber G) by the 3rd intake grill 132, its major part will be by the cylinder block 12 of the first cooling fan wind scooper 131 guided engines 10, in this process, from most of cooling air of the 3rd intake grill 132 front side case lid with the crankcase 11 of cooled electric generator 20 and motor 10.And all the other a small amount of cooling airs, then the top surface from the second exhaust outlet 135 along crankcase 11 blows out, thereby from top cooling crankcase 11.

Be connected with the first cooling fan wind scooper 131 and be provided with in addition cylinder block wind scooper 122 on the cylinder block 12.By cylinder block wind scooper 122, thereby from the cooling air of the first cooling fan wind scooper 131 with guide cylinder body 12 and make its along the surface of cylinder block 12 by the front cooling air cylinder body 12 of blowing over backward, the cooling air behind the cooling air cylinder body 12 is discharged backward from the rear side position of cylinder block 12.

Thus, starter cover 134, the first cooling fan wind scooper 131, cylinder block wind scooper 122 and the first cooling fan 112 form the first cooling structure 30.By the first cooling structure 30, under the operation of the first cooling fan 112, formed the first cooling duct C of the cylinder block 12 of cooled electric generator 20, motor.

Rear side at the crankcase 11 of motor 10 has the case lid 14 that is tightly connected with it, and the rear end of bent axle 111 passes from case lid 14.The rear side of case lid 14 form one flat, roughly become bowl-shape structure to hold the space (can referring to Fig. 8～9) of the second cooling fan 113 with formation.In the bottom of this bowl structure be the bottom vertical of case lid 14 to offering the first intake grill 141, be that the top level of case lid 14 is to offering the second intake grill 142 that is oppositely arranged with the second exhaust outlet 135 on the top of this bowl structure.Silencing apparatus 17 and the case lid 14 of motor 10 arrange side by side, make the axis of silencing apparatus relief opening 179 parallel with the axis of bent axle 111 (not indicating among the figure).The muffler cover 171 that silencing apparatus 17 outer room unoccupied places are provided with the casing shape that is shaped as general square shape coats silencing apparatus 17 wherein, only leaves opening in silencing apparatus relief opening 179 1 sides.

This muffler cover 171 comprises inner cover 172 and outer cover 173.Inner cover 172 links to each other with case lid 14 by its diapire 175, and outer cover 173 fastens and is fixed on the inner cover 172 by screw (not indicating among the figure).Referring to Fig. 4～7, be provided with i.e. the first connection mouth 176 of opening at the upper left side angle of the diapire 175 of inner cover 172.The front side on the top, right side of diapire 175 is integrally formed with forward the pipe bottom 138 that is connected to the composition connecting tube 174 that cylinder block 12 peripheries roughly take the shape of the letter U with the cross section of realizing being communicated with the first cooling channel C (namely being connected to cylinder block wind scooper 122), and 138 form roughly the irregular opening of U-shaped (among the figure sign) at diapire 175 bottom this pipe.And on outer cover 173, thereby 138 corresponding top positions are formed with forward, protruding upwardly and can be connected the pipe top 137 that forms connecting tube 174 with pipe bottom 138 in the front side on its top, right side and pipe bottom, and it is shallow inverted U-shaped and be connected to cylinder block 12 peripheries and be communicated with (namely being connected to cylinder block wind scooper 122) with realization with the first cooling channel C that the cross section of managing top 137 roughly is.Pipe bottom 138 so arranges with pipe top 137, after installation, the connecting tube 174 that to be integrally formed on the muffler cover 171 be formed by connecting by pipe bottom 138 and pipe top 137, these connecting tube 174 its front ends can with the namely corresponding connection in air side of cylinder block wind scooper 122 of the cooling air outlet of the first cooling channel C on cylinder block 12; Its rear end then integratedly on muffler cover 171 diapire 175 right upper portion of inner cover 172 (namely) form i.e. the second connection mouth 177 of an irregular opening, thereby realize the connection of the first cooling channel C and muffler cover 171 (be the 3rd cooling channel E also, the back will be described in detail) by connecting tube 174.

Such as Fig. 3, Fig. 9, the inner cover 172 of silencing apparatus 17 is installed on the case lid 14 of crankcase 11, and the left part that makes its diapire 175 covers on the opening end of the formed bowl structure of aforementioned case lid 14 rear sides, case lid 14 limits the second cooling fan holding space F that holds the second cooling fan 113 with inner cover 172, and the second cooling fan 113 is connected to the rear end of bent axle 111 and is contained among the second cooling fan holding space F.By the operation of the second cooling fan 113, lay respectively at first and second intake grill 141,142 at case lid 14 bottoms and top, become the namely intake grill of the second cooling fan 113 of this second cooling fan holding space F.It is worth mentioning that, as previously mentioned, because the second exhaust outlet 135 of the second intake grill 142 and the first air channel C is oppositely arranged, the wind that is blown out along cylinder block 12 tops by the second exhaust outlet 135 can very fast suction the second intake grill 142, thereby accelerate flowing of cylinder block 12 top cooling airs, make better heat-radiation effect.And at the first connection mouth 176 of diapire 175 upper left side angles, then become the namely exhaust outlet of the second cooling fan 113 of this second cooling fan holding space F, so form the second cooling air passage D of cooling crankcase 11 (case lid 14 at its bottom and rear portion).Case lid 14, diapire 175 and the second cooling fan 113 just form the second cooling structure 40.

Such as Fig. 1～Fig. 3, the gap between muffler cover 171 and the silencing apparatus 17 forms the 3rd cooling duct E of motor.The 3rd cooling duct E has two intake grills, the exhaust outlet of the first cooling duct C that the first and the first cooling duct C are communicated with by connecting tube 174 namely is formed at the second connection mouth 177 of diapire 175 right upper portion of inner cover 172 and (sees on this meaning, connecting tube 174 in fact also can be regarded the constituent element of the first cooling structure 30 as, but because connecting tube 174 is shaped in muffler cover 171, in the specification it is attributed to the 3rd cooling structure 50).The intake grill of another the 3rd cooling duct E is that the second cooling duct D is the first connection mouth 176 at the exhaust outlet that diapire 175 upper left side dihedrals become.That is to say that the intake grill that the left and right sides on diapire 175 tops has formed two the 3rd arranged side by side, separate cooling ducts is first and second connection mouth 176,177.And the exhaust outlet of the 3rd cooling duct E then is formed at muffler cover 171 in the opening side of silencing apparatus relief opening 179 1 sides, the air port that namely limits out between the rear openings end of outer cover 173 and the silencing apparatus 17, i.e. the first exhaust outlet 178.So, the 3rd cooling duct E is by first and second connection mouth 176,177 arranged side by side, realize being communicated with respectively with second, one cooling duct D, C, thereby effectively utilize first and second cooling duct to continue cooling silencing apparatus 17 by first and second connection mouth 176,177 cooling airs of discharging, and be discharged to motor 10 outsides from the first exhaust outlet 178.Correspondingly, silencing apparatus inner cover 172, outer cover 173 and connecting tube 174 have consisted of the 3rd cooling structure.

Further, such as Fig. 3, Figure 10 and shown in Figure 11, between case lid 14 and the second cooling fan 113, be provided with the case lid wind scooper 143 that cooling air that guiding enters by first and second intake grill 141,142 (is namely crossed wind hole 144) along its center and flow to the second cooling fan 113 inlet sides.This case lid wind scooper 143 be shaped as the dish shape, its center was provided with wind hole 144, the open-mouth end of its dish shape covers first and second intake grill 141,142 top, moved in the set wind hole 144 of crossing to the center by top or bottom along the space that case lid wind scooper 143 and case lid 14 are limited from first and second intake grill 141,142 cooling air with guiding, increase the cooling air travel path, increase the time of cooling air contact case lid 14, thereby but Effective Raise to the cooling effect of case lid 14.

Further, such as Fig. 4, Figure 6 and Figure 7, on the top of the diapire 175 of inner cover 172 and between first and second connection mouth, vertically be provided with isolating plate 136, so that also namely mutually separate from the cooling air of first and second cooling duct from the cooling air of first and second connection mouth, in order to avoid phase mutual interference.The height of isolating plate 136 is set to consistent with the height of the first connection mouth 176 among the embodiment.

In the utility model, because the first cooling structure C is prior art, so newly-increased parts are mainly muffler cover 171, and not only one-body molded on the muffler cover 171 connecting tube 174 that connects first and third cooling channel C, E is arranged, and muffler cover 171 also consists of the part of the second cooling structure D and is communicated with it so that second and third cooling channel D, E are communicated with.Therefore, the utility model is utilizing first and second cooling duct to cool off simultaneously in the design of silencing apparatus, and is simple in structure, and parts are economized, cost is low, can guarantee the cooling effect of motor, and it installs also relative simple.

During installation, at pack into case lid wind scooper and connect the second cooling fan in the rear end of bent axle 111 of case lid 14, the pipe bottom 138 of corresponding good connecting tube 174 and the position of cylinder block wind scooper 122 are installed in the inner cover 172 of muffler cover 171 on the case lid 14; Fix a silencer again 17, its silencing apparatus suction port (not shown) one end is installed in the combustion outlet port (not shown) of cylinder block 12, and the body of silencing apparatus 17 then is installed on the case lid 14 by the mounting hole that bolt (not marking among the figure) passes on the inner cover 172; Afterwards, with the outer cover 173 of muffler cover 171 and inner cover 172 corresponding engagings (simultaneously, pipe bottom 138 on pipe top 137 on the outer cover 173 and the inner cover 172 engages, the front end at pipe top 137 engages with cylinder block wind scooper 122 corresponding positions), and by bolt (not indicating among the figure), outer cover 173 is fixed on the inner cover 172.The step of installing is few, reliable and stable, technique is simple, can effectively save installation cost.

The utility model is not limited to generator motor in above-described embodiment; different change designs can be arranged; such as; connecting tube can design separately; also it can be designed to inner cover one-body molded etc.; as long as in the scope that does not break away from the utility model main points, still protected by claim of the present utility model.

Generator motor of the present utility model, it can be applied on the open-shelf engine generator product in the face of low-end market, also can be applicable on the squelch type engine generator product in the face of middle and high-end market, all can improve the cooling effect of motor, and simple in structure, easy for installation, cost is low.

Claims

1. generator motor, comprise that generator reaches the motor that is used for driving described generator, it is characterized in that, this motor also comprises: the first cooling structure, have the first cooling fan of bent axle one end that is connected to described motor, this first cooling structure is used to form the first cooling duct of the cylinder block of cooled electric generator, motor; The second cooling structure has the second cooling fan of the bent axle the other end that is connected to described motor, and this second cooling structure is used to form the second cooling duct of the crankcase of cooled engine; By the muffler cover that inner cover and outer cover form, itself and silencing apparatus arrange and form the 3rd cooling duct of cooling silencing apparatus with a gap, and the 3rd cooling duct is connected with described first and second cooling duct respectively.

2. generator motor as claimed in claim 1, it is characterized in that, the diapire of described inner cover is set to the part of described the second cooling structure, the case lid of itself and motor forms the second cooling fan holding space that holds the second cooling fan, this second cooling fan holding space have the first intake grill that takes shape in described case lid bottom and be communicated with the 3rd cooling duct, be opened on the first connection mouth on the described diapire.

3. generator motor as claimed in claim 2 is characterized in that, described the second cooling fan holding space also has the second intake grill that takes shape in described case lid top.

4. generator motor as claimed in claim 2 or claim 3, it is characterized in that between described case lid and described the second cooling fan, also having cooling air that guiding enters by first and second intake grill flows to described the second cooling fan along its center case lid wind scooper.

5. generator motor as claimed in claim 1, it is characterized in that, be formed with the connecting tube that connects first and third cooling duct on the described muffler cover, this connecting tube one end and the first cooling duct are connected in the cylinder block periphery, and the other end forms the second connection mouth that is communicated with the 3rd cooling duct at muffler cover.

6. generator motor as claimed in claim 5 is characterized in that, described connecting tube comprises pipe top and the pipe bottom that links to each other with the pipe top, and the outer cover of described pipe top and silencing apparatus is one-body molded, and described pipe bottom is one-body molded with inner cover.

7. such as claim 1,2 or 5 described arbitrary generator motors, it is characterized in that, vertically be provided with the isolating plate that to separate from the cooling air of first and second cooling duct on the diapire of described inner cover.