CN218953431U

CN218953431U - Mute generator set heat dissipation air duct

Info

Publication number: CN218953431U
Application number: CN202320005763.XU
Authority: CN
Inventors: 邵利军; 刘国伟; 唐曹; 杨祖然; 周杨春
Original assignee: Chongqing Ampride Power & Machinery Co ltd; Chongqing Senci Electric Machinery Co Ltd
Current assignee: Chongqing Ampride Power & Machinery Co ltd; Chongqing Senci Electric Machinery Co Ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-05-02
Anticipated expiration: 2033-01-03

Abstract

The utility model relates to a heat dissipation air duct of a mute generator set, which comprises a case and an inverter cover, a pull disc cover, an engine air guide cover, a cylinder head air guide cover and a muffler outer cover which are sequentially communicated in the case, wherein the inverter cover is provided with a first air inlet and a second air inlet, the case is provided with a first air outlet, and the first air inlet and the second air inlet, the inverter cover, the pull disc cover, the engine air guide cover, the cylinder head air guide cover, the muffler outer cover, the muffler and the first air outlet form a first heat dissipation air duct; the engine crankshaft is sequentially connected with a rotor and a second fan, a stator and a motor cover are arranged outside the rotor, a volute is arranged outside the second fan, a third air inlet is formed right below the motor cover, a second air outlet is formed in the case, and a second heat dissipation air channel is formed by the third air inlet, the motor cover, the volute and the second air outlet. The bottom of the case is provided with two air inlets for natural wind, so that the air inlet and outlet quantity of the case is increased, the heat dissipation in the case is faster, and the generator set works more stably.

Description

Mute generator set heat dissipation air duct

Technical Field

The utility model relates to the technical field of generators, in particular to a heat dissipation air duct of a mute generator set.

Background

The generator set is mechanical equipment for converting other forms of energy into electric energy, more heat is generated during operation, the inside of the silent generator set is sealed by the case except for a necessary air inlet and outlet, a heat dissipation air duct is needed to be designed, the internal heat is timely discharged, and the influence of the over-high internal temperature on the service life of the machine is avoided; the general silent generator set cooling system comprises a pull disc cover, an engine wind guide cover, a cylinder head wind guide cover and a muffler outer cover, wherein the pull disc cover is mainly used for cooling an engine cylinder head and a muffler; in the 202121847224.8 patent, a cooling air duct for a generator set is provided, in which a cooling fan is designed between a motor and an engine, and is mainly used for cooling the generator.

The prior art has the following defects that firstly, the air inlet of the pull disc cover is influenced by the air inlet quantity and the air inlet temperature due to the blocking of the inverter, so that the cooling effect on the cylinder head is poor; secondly, because the cooling fan between engine and the generator is limited by the length of the output shaft of the engine, the installation space is narrow, the whole structure is compact, the air inlet effect is affected, and the heat dissipation effect on the generator is poor.

Disclosure of Invention

The utility model aims at: the cooling air duct of the mute generator set is provided for solving the problem that the cooling effect of the cylinder head and the generator of the existing mute generator set is poor, so that the internal cooling effect of the generator is improved, the stability of the generator set is improved, and the service life is prolonged.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a silence generator unit heat dissipation wind channel, includes quick-witted case and sets up inverter cover, pull disc cover, engine wind scooper, cylinder head wind scooper and the silencer dustcoat that are linked together in proper order in the quick-witted incasement, inverter cover with the machine case is connected and is formed with a cavity, the side and the bottom of cavity are equipped with the first air intake and the second air intake that communicate with each other with the external world respectively, be equipped with the first fan that is connected with the engine bent axle in the engine wind scooper, be equipped with the silencer in the silencer dustcoat, the silencer pass through the connecting pipe with the gas outlet connection of cylinder head wind scooper, be equipped with on the machine case with the first air outlet of silencer dustcoat gas outlet intercommunication, first air intake and second air intake, inverter cover, pull disc cover, engine wind scooper, cylinder head wind scooper, silencer dustcoat and first air outlet form first heat dissipation wind channel;

the engine crankshaft is sequentially connected with a rotor and a second fan, a stator is arranged outside the rotor, a motor cover is arranged outside the stator, the motor cover is fixed with the case, a volute is arranged outside the second fan, the volute is fixed with the motor cover, a third air inlet is arranged right below the motor cover at the bottom of the case, a second air outlet is arranged on the side face perpendicular to the first air outlet of the case, the second air outlet is communicated with the air outlet of the volute, and a second heat dissipation air channel is formed by the third air inlet, the motor cover, the volute and the second air outlet.

According to the utility model, by forming two heat dissipation air channels, the heat dissipation effect is improved. In the first heat dissipation air duct, under the action of a first fan, natural wind on the side surface of the case enters the inverter cover, after passing through and cooling the inverter, the natural wind enters the pull disc cover together with the natural wind entering the inverter cover from the bottom of the case, and then sequentially passes through the engine wind scooper, the cylinder head wind scooper, the muffler and the muffler wind scooper, and finally is discharged from one side of the case, so that the engine and cylinder head cooling is completed; in the second heat dissipation air channel, high-temperature air near the motor in the case and natural wind entering from the bottom of the case enter the volute through the motor cover under the traction of the second fan and finally are discharged from the side face of the case.

Preferably, the motor cover is cup-shaped, a plurality of ventilation holes are formed in the bottom of the motor cover, a stator is arranged on the inner wall of the motor cover, and the cup opening is connected with the volute. The cup-shaped structure is beneficial to reducing occupied volume, natural wind enters the motor cover under the traction of the second fan through the vent holes, and is discharged from the volute after cooling the stator and the rotor, so that the heat dissipation efficiency of the motor is improved.

Further preferably, a base is arranged outside the motor cover, and the base is fixed at the bottom of the case through bolts. The disassembly and assembly between the motor and the case are convenient.

Preferably, a connecting disc is arranged between the second fan and the rotor, the connecting disc is fixed with the rotor through a bolt, a fixing screw is arranged at the center of the second fan, and the second fan and the connecting disc are connected with a crankshaft of the motor through the fixing screw. The parts are designed separately, so that the manufacture and the disassembly are convenient.

Preferably, the motor cover is connected with the volute through bolts. Make the dismouting convenient between motor cover and the spiral case, be favorable to maintaining and overhaul.

Preferably, a plurality of air holes are formed in the side, opposite to the second fan, of the volute. The speed of hot air in the case and entering the volute is accelerated, the ventilation efficiency in the case is increased, and the heat dissipation performance is improved.

Preferably, the volute is fixed below the muffler outer cover, the height of the volute is slightly larger than the distance between the bottom of the case and the bottom of the muffler outer cover, and an avoidance groove for avoiding the volute is formed below the muffler outer cover. The volute with larger size is favorable for installing the second fan blade with larger size, the exhaust speed is improved, meanwhile, the air outlet caliber can be designed to be larger, the unit exhaust air quantity can be improved, the heat dissipation efficiency is improved, the avoidance groove is compact in structure, and the space utilization rate is high.

Preferably, the second air inlet and the third air inlet which are positioned at the bottom of the case are both provided with filter screens. The motor can be prevented from being damaged by sucking some paper or pocket into the case, the safety is improved, and meanwhile, some dust can be filtered.

Further preferably, the second air inlet, the third air inlet and the filter screen are square. Is convenient for design and manufacture.

The first air inlet, the first air outlet and the second air outlet all adopt shutter type structures. The shutter type structure has good shielding performance, and can avoid the rapid temperature rise in the case under the condition of direct irradiation of outdoor sun.

The utility model has the beneficial effects that the machine body is compact in structure, the utilization rate of space is higher, the natural wind inlet volume in the generator is increased, the first fan and the second fan work simultaneously to accelerate the airflow velocity in the machine case, the whole heat dissipation efficiency of the generator set is higher, the whole temperature is effectively reduced, the working stability of the generator set is improved, and the service life is further prolonged.

Description of the drawings:

FIG. 1 is a schematic diagram of a second air outlet of a chassis;

FIG. 2 is a schematic diagram of a first air inlet of the chassis;

FIG. 3 is a schematic diagram of a first air outlet of the chassis;

FIG. 4 is a schematic diagram of the bottom structure of the chassis;

FIG. 5 is a schematic diagram of the internal structure of the chassis;

FIG. 6 is a side view of a heat dissipation duct;

FIG. 7 is a cross-sectional view of the structure of FIG. 6;

FIG. 8 is a structural elevation view of a heat dissipation air duct;

FIG. 9 is a diagram of the motor housing and volute construction;

FIG. 10 is a cross-sectional view of the structure of FIG. 9;

FIG. 11 is an exploded view of the structure of FIG. 9;

the marks in the figure: 1-machine case, 11-first air inlet, 12-second air inlet, 13-third air inlet, 14-first air outlet, 15-second air outlet, 16-filter screen, 2-inverter cover, 3-pull disc cover, 31-first fan, 4-engine air guide cover, 41-motor cover, 411-base, 42-volute, 421-second fan, 422-screw, 423-connection disc, 43-stator, 44-rotor, 45-ventilation hole, 46-air hole, 5-cylinder head air guide cover, 6-muffler cover, 61-muffler and 62-connecting pipe.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings.

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 11, the present embodiment provides a heat dissipation air duct of a silent generator set, including a chassis 1, and an inverter cover 2, a pull disc cover 3, an engine wind guiding cover 4, a cylinder head wind guiding cover 5 and a muffler cover 6 which are sequentially communicated in the chassis, wherein the inverter cover 2 is connected with the chassis 1 to form a cavity, a first air inlet 11 and a second air inlet 12 which are communicated with the outside are respectively arranged at the side and the bottom of the cavity, a first fan 31 connected with an engine crankshaft is arranged in the engine wind guiding cover 4, a muffler 61 is arranged in the muffler cover 6, the muffler 61 is connected with an air outlet of the cylinder head wind guiding cover 5 through a connecting pipe 62, a first air outlet 14 which is communicated with the air outlet of the muffler cover 6 is arranged on the chassis 1, and a first heat dissipation air duct is formed by the first air inlet 11 and the second air inlet 12, the inverter cover 2, the pull disc cover 3, the engine wind guiding cover 4, the cylinder head wind guiding cover 5, the muffler cover 6 and the muffler 61, and the first air outlet 14;

the engine crankshaft is sequentially connected with a rotor 44 and a second fan 421, a stator 43 is arranged outside the rotor 44, a motor cover 41 is arranged outside the stator 43, the motor cover 41 is fixed with the case 1, a volute is arranged outside the second fan 421, the volute 42 is fixed with the motor cover 41, a third air inlet 13 is arranged right below the motor cover 41 at the bottom of the case 1, a second air outlet 15 is arranged on the side face of the case 1 perpendicular to the first air outlet 14, the second air outlet 15 is communicated with the air outlet of the volute 42, and the third air inlet 13, the motor cover 41, the volute 42 and the second air outlet 15 form a second heat dissipation air duct. Wherein the third air inlet 13 is located right below the motor cover 41, is closer to the motor cover 41, and has fast air inlet and fast cooling speed.

Referring to fig. 9 and 11, the motor cover 41 is cup-shaped, a plurality of ventilation holes 46 are formed in the bottom of the cup, a stator 43 is mounted on the inner wall of the cup, and the cup opening is connected with the volute 42; the motor cover 41 is externally provided with a base 411, and the base 411 is fixed at the bottom of the chassis 1 through bolts.

Referring to fig. 10, a connection disc 423 is provided between the second fan 421 and the rotor 44, the connection disc 423 is fixed to the rotor 44 by a bolt, a fixing screw 422 is provided at the center of the second fan 421, and the second fan 421 and the connection disc 423 are connected to a crankshaft of the motor by the fixing screw 422.

The motor housing 41 is connected to the scroll casing 42 by bolts.

Referring to fig. 11, a plurality of air holes 46 are provided on a side of the scroll casing 42 opposite to the second fan 421.

Referring to fig. 6 and 8, the volute 42 is fixed below the muffler housing 6, the height of the volute 42 is slightly greater than the distance between the bottom of the chassis 1 and the bottom of the muffler housing 6, and an avoidance groove for avoiding the volute 42 is provided below the muffler housing 6.

Referring to fig. 4, the second air inlet 12 and the third air inlet 13 located at the bottom of the chassis 1 are both provided with a filter screen 16; the second air inlet 12, the third air inlet 13 and the filter screen 16 are square.

Referring to fig. 1, 2 and 3, the first air inlet 11, the first air outlet 14 and the second air outlet 15 each adopt a shutter structure.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a silence generator unit heat dissipation wind channel, includes quick-witted case (1) and sets up inverter cover (2), pull disc cover (3), engine wind scooper (4), cylinder head wind scooper (5) and silencer dustcoat (6) that are in the quick-witted incasement is linked together in proper order, its characterized in that, inverter cover (2) with machine case (1) are connected and are formed a cavity, side and the bottom of cavity are equipped with respectively with communicating first air intake (11) and second air intake (12) with the external world, be equipped with in engine wind scooper (4) with engine crankshaft first fan (31) that connects, be equipped with silencer (61) in silencer dustcoat (6), silencer (61) are through connecting pipe (62) with the gas outlet connection of cylinder head wind scooper (5), be equipped with on machine case (1) with silencer dustcoat (6) gas outlet intercommunication first air outlet (14), first air intake (11) and second air intake (12), inverter cover (2), pull disc cover (3), engine wind scooper (4), wind scooper (5), first air duct (61) and first air duct (61) form;

the engine crankshaft is sequentially connected with a rotor (44) and a second fan (421), a stator (43) is arranged outside the rotor (44), a motor cover (41) is arranged outside the stator (43), the motor cover (41) is fixed with the machine case (1), a volute is arranged outside the second fan (421), the volute (42) is fixed with the motor cover (41), a third air inlet (13) is formed in the bottom of the machine case (1) and is located right below the motor cover (41), a second air outlet (15) is formed in the side face, perpendicular to the first air outlet (14), of the machine case (1), the second air outlet (15) is communicated with an air outlet of the volute (42), and a second heat dissipation air duct is formed by the third air inlet (13), the motor cover (41), the volute (42) and the second air outlet (15).

2. The silent generator set heat dissipation air duct of claim 1, wherein: the motor cover (41) is cup-shaped, a plurality of ventilation holes (46) are formed in the bottom of the motor cover, a stator (43) is arranged on the inner wall of the motor cover, and a cup opening is connected with the volute (42).

3. The silent generator set heat dissipation air duct of claim 1, wherein: the motor cover (41) is externally provided with a base (411), and the base (411) is fixed at the bottom of the chassis (1) through bolts.

4. The silent generator set heat dissipation air duct of claim 1, wherein: connecting discs (423) are arranged between the second fans (421) and the rotors (44), the connecting discs (423) are fixed with the rotors (44) through bolts, fixing screws (422) are arranged at the centers of the second fans (421), and the second fans (421) are connected with the connecting discs (423) through the fixing screws (422) and crankshafts of motors.

5. The silent generator set heat dissipation air duct of claim 1, wherein: the motor cover (41) is connected with the volute (42) through bolts.

6. The silent generator set heat dissipation air duct of claim 1, wherein: and a plurality of air holes (46) are formed in the side, opposite to the second fan (421), of the volute (42).

7. The silent generator set heat dissipation air duct of claim 1, wherein: the spiral case (42) is fixed below the muffler outer cover (6), the height of the spiral case (42) is larger than the distance between the bottom of the case (1) and the bottom of the muffler outer cover (6), and an avoidance groove for avoiding the spiral case (42) is formed below the muffler outer cover (6).

8. The silent generator set heat dissipation air duct of claim 1, wherein: the second air inlet (12) and the third air inlet (13) which are positioned at the bottom of the case (1) are respectively provided with a filter screen (16).

9. The silent generator set heat dissipation air duct of claim 8, wherein: the second air inlet (12), the third air inlet (13) and the filter screen (16) are square.

10. The silent generator set heat dissipation duct according to any one of claims 1-9, wherein: the first air inlet (11), the first air outlet (14) and the second air outlet (15) are both in a shutter type structure.