阅读说明：本技术 一种多风道发电机总成 (Multi-air-duct generator assembly ) 是由 罗昌国 于 2020-06-24 设计创作，主要内容包括：本发明属于发电机技术领域,特指一种多风道发电机总成；拉盘将新鲜空气吸入,第一风扇将新鲜空气引入导风罩内并分流成两路,其中一路通过缸头冷却通道对缸头进行冷却,再对消声器进行冷却形成第一冷却风道；另一路经引风通道对箱体、机油进行冷却,再由第二风扇从侧盖上的第二风道吸入对消声器进行冷却形成第二冷却风道；缸头下方的空气经第二风扇从第三风道吸入对消声器进行冷却形成第三冷却风道；箱体外侧的空气经第二风扇强制吸入,冷却箱体、机油,再从侧盖上的第一风道依次对侧盖及消声器进行冷却后向外界排出形成第四冷却风道；本发明的四条冷却风道实现了对发电机总成上各部件及机油的冷却。(The invention belongs to the technical field of generators, in particular to a multi-air-channel generator assembly; the pull disc sucks in fresh air, the first fan introduces the fresh air into the air guide cover and divides the fresh air into two paths, one path cools the cylinder head through the cylinder head cooling channel, and then the muffler is cooled to form a first cooling air channel; the other path of the air is used for cooling the box body and the engine oil through the air inducing channel, and then is sucked from a second air channel on the side cover by a second fan to cool the muffler to form a second cooling air channel; air below the cylinder head is sucked from the third air channel through the second fan to cool the muffler to form a third cooling air channel; air outside the box body is forcibly sucked by the second fan to cool the box body and engine oil, and then the side cover and the silencer are sequentially cooled by the first air channel on the side cover and then discharged to the outside to form a fourth cooling air channel; the four cooling air channels of the invention realize the cooling of all parts and engine oil on the generator assembly.)

1. The utility model provides a multi-wind channel generator assembly which characterized in that: comprises a box body (1), a motor (2), a first fan (3) and a pull disc are sequentially arranged at one end of the box body (1) from inside to outside along the axial direction, a side cover (4), a second fan (5) and a silencer (6) are sequentially arranged at the other end of the box body (1) from inside to outside along the axial direction, the second fan (5) and the silencer (6) are arranged in a silencer shell, the motor (2) and the first fan (3) are positioned in an air guide cover (7), a first air inlet (8) is arranged on the air guide cover (7), a cylinder head air guide cover (9) is arranged on the box body (1), a cylinder head cooling channel (10) is formed between the cylinder head air guide cover (9) and the box body, the cylinder head cooling channel (10) is communicated with an inner cavity (11) of the air guide cover and an inner cavity (12) of the silencer shell, a bottom air guide plate (13) is arranged at the, an induced air channel (14) is formed between the bottom induced air plate (13) and the outer wall of the bottom of the box body (1), a first air channel (15) for communicating the outside of the box body (1) with the inner cavity (12) of the silencer shell and a second air channel (16) for communicating the induced air channel (14) with the inner cavity (12) of the silencer shell are arranged on the side cover (4), the inner cavity (11) of the motor shell is communicated with the inner cavity (12) of the silencer shell through the induced air channel (14) and the second air channel (16), a third air channel (17) is arranged on the outer side wall of the silencer shell below the cylinder head (18), and the third air channel (17) is communicated with the inner cavity (12) of the silencer shell;

fresh air is sucked by a pull disc, the fresh air is introduced into an air guide cover (7) by a first fan (3) and is divided into two paths, wherein one path forcibly cools a cylinder head (18) through a cylinder head cooling channel (10), then enters an inner cavity (12) of a silencer shell to cool a silencer (6) and is discharged to the outside to form a first cooling air channel; the other path cools the box body and the engine oil through an induced draft channel (14), and then is sucked into an inner cavity (12) of the silencer shell from a second air channel (16) on the side cover (4) through a second fan (5) to cool the silencer (6) and then is discharged to the outside to form a second cooling air channel;

air below the cylinder head (18) is sucked into the inner cavity (12) of the silencer shell from the third air channel (17) through the second fan (5) to cool the silencer (6) and then is discharged to the outside to form a third cooling air channel;

air outside the box body (1) is forcibly sucked by the second fan (5), the box body (1) and engine oil are cooled, then the air enters the inner cavity (12) of the silencer shell from the first air channel (15) on the side cover (4), the side cover (4) and the silencer (6) are sequentially cooled, and then the air is discharged to the outside to form a fourth cooling air channel.

2. The multiple duct generator assembly of claim 1, wherein: the silencer casing includes silencer main frame (19) and connects silencer apron (20) on silencer main frame (19), be provided with air exit (21) on silencer apron (20), silencer main frame (19) and silencer apron (20) form the cavity of holding second fan (5) and silencer (6), wind-guiding recess (17) set up on the lateral wall of silencer main frame (19).

3. The multiple duct generator assembly of claim 2, wherein: the third air duct (17) is a horn-shaped groove, and the opening at the inner end is smaller than the opening at the outer end.

4. The multiple duct generator assembly of claim 2, wherein: the silencer is characterized in that a second air inlet (22) communicated with a first air channel (15) and a second air channel (16) on the side cover (4) is formed in the silencer main frame (19), an air channel sealing ring (23) is coaxially arranged on the inner wall of the silencer main frame (19) and the second air inlet (22), the second fan (5) is arranged in the air channel sealing ring (23), and the air channel sealing ring (23) and the second fan (5) form an air locking chamber for locking air entering from the first air suction channel (15) and the second air suction channel (16).

5. A multi-duct generator assembly according to claim 2 or 4, wherein: and a third air inlet (24) communicated with the cylinder head air guide cover (9) is arranged on the muffler main frame (19), and an exhaust pipe (25) on the muffler (6) penetrates through the third air inlet (24) to be connected with the cylinder head (8).

6. The multiple duct generator assembly of claim 5, wherein: and an air duct induced draft plate (26) for guiding a part of air to forcibly cool an exhaust pipe (25) of the silencer (6) is arranged on one side edge of the third air inlet (24) close to the second fan (5).

7. The multiple duct generator assembly of claim 5, wherein: and an air duct baffle (27) for preventing the mutual interference of the air flow generated by the second fan (5) and the air flow entering from the third air inlet (24) is arranged on the inner wall of the main silencer frame (19).

8. The multiple duct generator assembly of claim 1, wherein: the side cover (4) comprises a cover body (28), a crankshaft hole (30) for a generator crankshaft (29) to penetrate is formed in the cover body (28), an arc-shaped groove (31) is formed in one side face, close to the silencer shell, of the cover body (28), a second air duct (16) is arranged on the cover body (28) and corresponds to the air induction channel (14), more than two first air ducts (15) are formed in the cover body (28), inlets of the first air ducts (15) and the second air ducts (16) are circumferentially distributed in the side wall of the cover body (28), outlets of the first air ducts (15) and the second air ducts (16) are communicated with the arc-shaped groove (31), and the first air ducts (15) are communicated with an inner cavity (12) of the silencer shell through the arc-shaped groove (31).

9. The multiple duct generator assembly of claim 8, wherein: the inner arc-shaped surface of the arc-shaped groove (31) is a flow guide surface which is obliquely arranged.

10. The multiple duct generator assembly of claim 1, wherein: second fan (5) are including erection column (32) that the middle part has the mounting hole, be provided with on the outer cylinder of erection column (32) and be discoid interior fan dish (33), circumference equipartition has a plurality of interior fan blades (34) on the side of interior fan dish (33), the projection department fretwork on interior fan blade (34) on interior fan dish (33), be provided with along axial interval in one side that interior fan blade (34) were provided with in fan dish (33) and be annular outer fan dish (35), outer fan dish (35) and interior fan dish (33) coaxial line set up, and be connected through outer fan blade (36) of a plurality of circumference equipartitions between outer fan dish (35) and interior fan dish (33).

The technical field is as follows:

the invention belongs to the technical field of generators, and particularly relates to a multi-air-channel generator assembly.

Background art:

in order to achieve the silencing effect, the silencing generator set is additionally provided with a shell on the basis of the open-frame engine. The mute generator set mainly comprises a closed case, a case body, a motor, a silencer and the like. The box body is connected with the motor, and the silencer is connected with the cylinder head in the box body through the exhaust pipe. Because the whole unit is almost sealed in the machine body, the ventilation and heat dissipation of the unit are poor, the temperature rise inside the unit is too fast, the performance of the unit is seriously influenced, and the working reliability of the unit is greatly reduced. Therefore, heat dissipation from the generator set is important. When the generator set works, the temperature of the silencer and engine oil is high, and the working reliability of the generator set is seriously influenced by the temperature.

The invention content is as follows:

the invention aims to provide a multi-air-channel generator assembly which is good in cooling effect and ensures that a generator set works normally.

The invention is realized by the following steps:

a multi-air-channel generator assembly comprises a box body, wherein a motor, a first fan and a pull disc are sequentially arranged at one end of the box body from inside to outside along the axial direction, a side cover, a second fan and a silencer are sequentially arranged at the other end of the box body from inside to outside along the axial direction, the second fan and the silencer are arranged in a silencer shell, the motor and the first fan are positioned in an air guide cover, a first air inlet is formed in the air guide cover, a cylinder head air guide cover is arranged on the box body, a cylinder head cooling channel is formed between the cylinder head air guide cover and the box body, the cylinder head cooling channel is communicated with an inner cavity of the air guide cover and an inner cavity of the silencer shell, a bottom air guide plate is arranged at the bottom of the box body, an air guide channel is formed between the bottom air guide plate and the outer wall of the bottom of the box body, a first air channel communicated with the outer part of the box body and the, the inner cavity of the wind scooper is communicated with the inner cavity of the silencer shell through the induced draft channel and the second air duct, and a third air duct is arranged on the outer side wall of the silencer shell below the cylinder head and communicated with the inner cavity of the silencer shell;

fresh air is sucked by the pull disc, the fresh air is introduced into the air guide cover by the first fan and is divided into two paths, one path of the fresh air is used for forcibly cooling the cylinder head through the cylinder head cooling channel, and then enters the inner cavity of the silencer shell to cool the silencer and is discharged to the outside to form a first cooling air channel; the other path cools the box body and the engine oil through the induced air channel, and then is sucked into the inner cavity of the silencer shell from a second air channel on the side cover by a second fan to cool the silencer and then is discharged to the outside to form a second cooling air channel;

air below the cylinder head is sucked into the inner cavity of the silencer shell from the third air channel through the second fan, cools the silencer and then is discharged to the outside to form a third cooling air channel;

air outside the box body is forcibly sucked by the second fan to cool the box body and engine oil, and then enters the inner cavity of the silencer shell from the first air channel on the side cover to sequentially cool the side cover and the silencer and then is discharged to the outside to form a fourth cooling air channel.

In the above-mentioned multi-duct generator assembly, the silencer casing includes the silencer main frame and connects the silencer apron on the silencer main frame, be provided with the air exit on the silencer apron, the silencer main frame forms the cavity of holding second fan and silencer with the silencer apron, the third wind channel sets up on the lateral wall of silencer main frame.

In the above-mentioned multi-duct generator assembly, the third duct is a trumpet-shaped groove, and the opening at the inner end is smaller than the opening at the outer end.

In the multi-air-channel generator assembly, the muffler main frame is provided with a second air inlet which is simultaneously communicated with the first air channel and the second air channel on the side cover, the inner wall of the muffler main frame is provided with an air channel sealing ring which is coaxial with the second air inlet, the second fan is arranged in the air channel sealing ring, and the air channel sealing ring and the second air fan are provided with an air locking chamber which locks air entering from the first air channel and the second air channel in pairs.

In the multi-air-channel generator assembly, the muffler main frame is provided with a third air inlet communicated with the cylinder head air guide cover, and an exhaust pipe on the muffler penetrates through the third air inlet to be connected with the cylinder head.

In the above-mentioned multi-duct generator assembly, an air duct induced draft plate for guiding a part of air to forcibly cool the exhaust pipe of the muffler is disposed on a side edge of the third air inlet close to the second fan.

In the above multi-air-duct generator assembly, the inner wall of the main silencer frame is provided with an air duct baffle for preventing the air flow generated by the second fan and the air flow entering from the third air inlet from interfering with each other.

In the above-mentioned multi-duct generator assembly, the side cover includes the lid, is provided with the bent axle hole that is used for supplying the generator crankshaft to pass on the lid, is provided with the arc recess on a side of being close to the silencer casing on the lid, the arc recess sets up with the bent axle hole coaxial line, is provided with the second wind channel with induced air passageway corresponding position on the lid, and is provided with more than two first wind channels on the lid, and the import circumference of first wind channel, second wind channel distributes on the lateral wall of lid, the export and the arc recess intercommunication in first wind channel, second wind channel, first wind channel communicate with the silencer casing inner chamber through the arc recess.

In the above multi-duct generator assembly, the inner arc-shaped surface of the arc-shaped groove is a flow guide surface which is obliquely arranged.

In foretell multi-wind channel generator assembly, the second fan includes that the middle part has the erection column of mounting hole, is provided with on the outer cylinder face of erection column and is discoid interior fan dish, and the circumference equipartition has a plurality of interior fan blades on a side of interior fan dish, and the projection department fretwork on the interior fan dish of interior fan blade is provided with annular outer fan dish along axial interval in the one side that interior fan blade was provided with of interior fan dish, and outer fan dish sets up with interior fan dish coaxial line, and is connected through the outer fan blade of a plurality of circumference equipartitions between outer fan dish and the interior fan dish.

Compared with the prior art, the invention has the outstanding advantages that:

1. the four cooling air channels are arranged, the first cooling air channel is used for cooling the motor, the cylinder head, the silencer exhaust pipe and the silencer, the second cooling air channel is used for cooling the motor, the box body, the engine oil, the side cover and the silencer, the third cooling air channel is used for cooling the air around the cylinder head side in the machine body and the silencer, and the fourth cooling air channel is used for cooling the air on the left side in the machine body, the engine oil, the side cover and the silencer, so that the cooling of all heating components and the engine oil on the generator assembly is realized, and the normal work of the generator assembly is ensured;

2. the invention has compact structure, small improvement on the generator assembly and good cooling effect;

3. according to the invention, the air duct sealing ring arranged on the inner wall of the main frame of the silencer and the second fan form the air locking chamber, so that the air entering the silencer shell is effectively prevented from being dispersed randomly, and the cooling effect is improved;

4. the air duct induced draft plate arranged on the inner wall of the main frame of the silencer can blow part of air to the exhaust pipe of the silencer, so that the temperature of the exhaust pipe of the silencer is effectively reduced.

Description of the drawings:

FIG. 1 is one of the perspective views of the present invention;

FIG. 2 is a second perspective view of the present invention;

FIG. 3 is an exploded schematic view of the present invention;

FIG. 4 is a schematic view of a first cooling air duct, a second cooling air duct of the present invention;

FIG. 5 is a schematic view of a first cooling air duct of the present invention;

FIG. 6 is one of the schematic illustrations of the side cover of the present invention;

FIG. 7 is a second schematic view of the side cover of the present invention;

FIG. 8 is a schematic view of a second fan according to the present invention;

FIG. 9 is one of the schematic views of the muffler main frame of the present invention;

fig. 10 is a second schematic view of the muffler main frame of the present invention.

In the figure: 1. a box body; 2. a motor; 3. a first fan; 4. a side cover; 5. a second fan; 6. a muffler; 7. a wind scooper; 8. a first air inlet; 9. a cylinder head wind scooper; 10. the inner cavity of the cylinder head wind scooper; 11. an inner cavity of the wind scooper; 12. an inner cavity of the silencer shell; 13. a bottom air guide plate; 14. an induced draft channel; 15. a first air duct; 16. a second air duct; 17. a third air duct; 18. a cylinder head; 19. a muffler main frame; 20. a muffler cover plate; 21. an air outlet; 22. a second air inlet; 23. an air duct sealing ring; 24. a third air inlet; 25. an exhaust pipe; 26. an air duct induced draft plate; 27. an air duct baffle; 28. a cover body; 29. a generator crankshaft; 30. a crankshaft bore; 31. an arc-shaped groove; 32. mounting a column; 33. an inner fan disc; 34. an inner fan blade; 35. an outer fan plate; 36. an outer fan blade; 37. pulling the disc; 38. and (7) air outlet.

The specific implementation mode is as follows:

the invention will now be further described in the following by way of specific examples, with reference to figures 1 to 10:

a multi-air-channel generator assembly comprises a box body 1, wherein a motor 2, a first fan 3 and a pull disc 37 are sequentially arranged at one end of the box body 1 from inside to outside along the axial direction, a side cover 4, a second fan 5 and a silencer 6 are sequentially arranged at the other end of the box body 1 from inside to outside along the axial direction, the second fan 5 and the silencer 6 are arranged in a silencer shell, the motor 2 and the first fan 3 are positioned in an air guide cover 7, a first air inlet 8 is arranged on the air guide cover 7, the pull disc 37 is arranged at the outer end of the air guide cover 7, a cylinder head air guide cover 9 is arranged on the box body 1, a cylinder head cooling channel 10 is formed between the cylinder head air guide cover (9) and the box body 1, the cylinder head cooling channel 10 is communicated with an inner cavity 11 of the air guide cover and an inner cavity 12 of the silencer shell, a bottom air guide plate 13 is arranged at the bottom of the box body 1, an air guide plate 13 and an, a first air duct 15 for communicating the outside of the box body 1 with the inner cavity 12 of the silencer shell and a second air duct 16 for communicating the induced air channel 14 with the inner cavity 12 of the silencer shell are arranged on the side cover 4, the inner cavity 11 of the air guide cover is communicated with the inner cavity 12 of the silencer shell through the induced air channel 14 and the second air duct 16, a third air duct 17 is arranged on the outer side wall of the silencer shell below the cylinder head 8, and the third air duct 17 is communicated with the inner cavity 12 of the silencer shell;

the pull disc 37 sucks in fresh air, the centrifugal force generated by the accelerated rotation of the first fan 3 leads the fresh air into the inner cavity 11 of the wind guide cover from the first air inlet 8 and divides the fresh air into two paths, wherein one path forcibly cools the cylinder head 18 through the cylinder head cooling channel 10, and then the fresh air enters the inner cavity 12 of the silencer shell through the negative pressure generated by the second fan to cool the silencer 6 and is discharged from the air outlet 21 to the outside to form a first cooling air channel; the other path cools the box body 1 and the engine oil through the induced air channel 14, and then negative pressure generated by the second fan 5 is sucked into the inner cavity 12 of the silencer shell from the second air channel 16 on the side cover 4 to cool the silencer 6 and then is discharged to the outside from the air outlet 21 to form a second cooling air channel;

air below the cylinder head 18 is sucked from the third air duct 17 through negative pressure generated by the second fan 5, enters the inner cavity 12 of the silencer shell to cool the silencer 6, and is discharged from the air outlet 21 to the outside to form a third cooling air duct, and the air can cool the periphery of the cylinder head 18 during suction;

air outside the box body 1 (top, left side and right side) is forcibly sucked by negative pressure generated by the second fan 5, and the engine oil and the side cover 4 are cooled, and then enter the inner cavity 12 of the silencer shell from the first air channel 15 on the side cover 4 to cool the silencer 6, and then are discharged to the outside from the air outlet 21 to form a fourth cooling air channel.

The second fan 5 of the present invention makes the wind entering the muffler inner chamber 12 directly blow to the muffler 6, and sufficiently cools the muffler 6.

The arrows in fig. 3, 4, 5, 6 of the present invention are the direction of wind flow.

The invention is provided with four cooling air ducts in total, can realize the cooling of the motor 1, the air around the cylinder head side in the machine body, the air on the upper left side in the machine body, the engine oil, the box body 1, the side cover 4 and the silencer 6, has good heat dissipation effect, and prolongs the service life of the silent generator set.

As shown in fig. 1, 2, 3, 4, and 5, the muffler shell includes a muffler main frame 19 and a muffler cover plate 20 connected to the muffler main frame 19, an air outlet 21 is disposed on the muffler cover plate 20, the muffler main frame 19 and the muffler cover plate 20 form a cavity for accommodating the second fan 5 and the muffler 6, and the third air duct 17 is disposed on an outer side wall of the muffler main frame 19.

As shown in fig. 8, in order to improve the air intake effect, the third air duct 17 is a trumpet-shaped groove, and the opening at the inner end is smaller than the opening at the outer end.

In order to prevent the wind entering the inner cavity 12 of the muffler shell from the first wind channel 15 and the second wind channel 16 from being scattered randomly, a second wind inlet 22 communicated with the first wind channel 15 and the second wind channel 16 on the side cover 4 is arranged on the muffler main frame 19, a wind channel sealing ring 23 is arranged on the inner wall of the muffler main frame 19 and is coaxial with the second wind inlet 22, the second fan 5 is arranged in the wind channel sealing ring 22, and the wind channel sealing ring 22 and the second fan 5 form a wind locking chamber for locking the wind entering from the first wind channel 15 and the second wind channel 16. The air entering the first air duct 15 and the second air duct 16 is concentrated in the air lock chamber, and is blown to the muffler 6 by the second fan 5 to cool the muffler 6.

As shown in fig. 2, 3, 4 and 5, a third air inlet 24 communicated with the cylinder head air guiding cover 9 is arranged on the muffler main frame 19, and an exhaust pipe 25 on the muffler 6 penetrates through the third air inlet 24 to be connected with the cylinder head 18.

In order to make a part of the wind entering from the third wind inlet 24 blow to the exhaust pipe 25, a wind channel induced plate 26 is disposed on a side of the third wind inlet 24 close to the second fan 5. The exhaust pipe 25 of the muffler 6 has a high temperature, and the air duct induced draft plate 26 can prevent the wind from directly entering the inner cavity of the muffler shell without cooling the exhaust pipe 25. The duct air guide plate 26 is located on the first cooling duct, and can turn the air flow, so as to achieve the forced cooling of the exhaust pipe of the muffler 6.

The inner wall of the muffler main frame 19 is provided with the air duct baffle 27, and the air duct baffle 27 can prevent the mutual interference between the air flow generated by the second fan 5 and the air flow entering from the third air inlet 24.

As shown in fig. 6 and 7, the side cover 4 includes a cover 28, a crankshaft hole 30 for passing a generator crankshaft 29 is provided on the cover 28, an arc-shaped groove 31 is provided on a side surface of the cover 28 close to the muffler housing, the arc-shaped groove 31 and the crankshaft hole 30 are coaxially disposed, a second air duct 16 is provided on the cover 28 corresponding to the induced air channel 14, and more than two first air ducts 15 are provided on the cover 28, and three first air ducts 15 are provided in the present embodiment. Inlets of the first air duct 15 and the second air duct 16 are circumferentially distributed on the side wall of the cover 28, outlets of the first air duct 15 and the second air duct 16 are communicated with the arc-shaped groove 31, and the first air duct 15 and the second air duct 16 are communicated with the inner cavity 12 of the silencer shell through the arc-shaped groove 31. Because the side cover 4 is arranged between the cylinder head 18 and the muffler main frame 19, in order to realize the communication between the cylinder head wind scooper 9 and the muffler shell inner cavity 12, an air outlet 38 is arranged on the side cover 4 at a position corresponding to the third air inlet 24, and the shape of the air outlet 38 is used for preventing the third air inlet 24 from being shielded.

In order to realize the diversion of the wind, the inner arc-shaped surface of the arc-shaped groove 31 is a diversion surface which is obliquely arranged.

As shown in fig. 8, the second fan 5 includes a mounting post 32 having a mounting hole in the middle, and the mounting post 32 is mounted on the generator crankshaft 29. Be provided with on the outer cylinder face of erection column 32 and be discoid interior fan dish 33, circumference equipartition has a plurality of interior fan blades 34 on the side of interior fan dish 33, and interior fan blade 34 is including the projection department fretwork on fan dish 33, and be provided with annular outer fan dish 35 along axial interval in the one side that interior fan blade 34 was provided with of fan dish 33, and outer fan dish 35 and interior fan dish 33 coaxial line set up, and is connected through a plurality of circumference equipartition's outer fan blade 36 between outer fan dish 35 and the interior fan dish 33, the one end and the outer fan dish 35 of outer fan blade 36 are connected, the other end and interior fan dish 33 are connected.

In the present specification, the terms "upper", "lower", "left", "right", "middle" and "one" are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial technical changes.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the invention are covered by the protection scope of the invention.