CN115306545A - A variable frequency gasoline generator - Google Patents

Abstract

The present application relates to the field of generators, in particular to a variable frequency gasoline generator. The generator includes a frame, a starting assembly and a power generating assembly. The starting assembly includes a casing, a crankshaft and a driving mechanism. The casing is fixed on the frame, the crankshaft is rotatably arranged on the casing, and the driving mechanism is arranged on the casing. and can drive the crankshaft to rotate; the power generation assembly includes the second casing, the stator, the rotor and the rotating shaft, the second casing is fixed on the frame, the side of the first casing close to the second casing is combined with the second casing to form an inner cavity, and the stator is fixed In the inner cavity, the rotor is fixed on the rotating shaft and is matched with the stator; one end of the crankshaft passes through the casing 1 and is connected with one end of the rotating shaft, and the other end of the rotating shaft is connected with a fan, and the position of the casing 2 close to the fan has the inner cavity. For the connected air inlets, an air outlet assembly communicated with the inner cavity is arranged between the second casing and the first casing. The present application has the advantages of good heat dissipation effect and the like.

Description

A frequency conversion gasoline generator

technical field

The present application relates to the field of generators, in particular to a variable frequency gasoline generator.

Background technique

A variable frequency gasoline generator is usually composed of an engine, a stator, a rotor, a frequency converter and other components.

Among them, the engine is a machine that converts chemical energy into mechanical energy. The fuel in the cylinder is burned to generate kinetic energy, which drives the piston in the engine cylinder to reciprocate, and the piston drives the crankshaft to make a circular motion through the connecting rod. The stator is composed of stator core, wire wrap winding, frame and other structural parts that fix these parts. The rotor is composed of rotor core winding, shaft and other components.

The crankshaft of the engine is connected to the rotating shaft of the rotor, which drives the rotor to rotate in the stator and cuts the magnetic field lines, thereby generating an induced potential, which is drawn out through the terminal and connected to the circuit to generate current.

Since the gasoline generator generates more heat when it is running, the frequency conversion gasoline generator in the related art cannot effectively dissipate heat and cool down, and it is easy to cause the generator to break down in a high temperature environment.

Contents of the invention

In order to improve the heat dissipation performance of the frequency conversion gasoline generator, the application provides a frequency conversion gasoline generator.

A frequency conversion gasoline generator provided by this application adopts the following technical scheme:

A variable frequency gasoline generator, the generator includes a frame, a starting assembly and a power generation assembly, the starting assembly includes a casing one, a crankshaft and a drive mechanism, the casing one is fixed on the frame, and the crankshaft rotates It is arranged on the first casing, and the driving mechanism is arranged on the first casing and can drive the crankshaft to rotate; the power generation assembly includes the second casing, the stator, the rotor and the rotating shaft, and the second casing is fixed on the frame, and the The side of housing 1 close to housing 2 is combined with housing 2 to form an inner cavity, the stator is fixed in the inner cavity, the rotor is fixed on the rotating shaft and cooperates with the stator; one end of the crankshaft passes through the housing One is connected with one end of the rotating shaft, the other end of the rotating shaft is connected with a fan, the position of the second housing close to the fan has an air inlet communicating with the inner cavity, and the space between the second housing and the first housing is There is an air outlet assembly communicating with the inner cavity.

By adopting the above technical solution, when the generator is running, the drive mechanism drives the crankshaft to rotate, and the crankshaft drives the rotating shaft to rotate, so that the rotor rotates relative to the stator to cut the magnetic force line, thereby generating an induced potential, which is drawn out through the terminal and connected to the circuit to generate Electric current; while the rotating shaft rotates, the fan is driven to rotate, and the outside airflow is sucked into the interior of the shell two through the air inlet, and the airflow is discharged from the air outlet assembly after passing through the rotor and stator through the fan. One side of body two is combined with casing two, so the airflow can cool the rotor, stator and casing one, effectively cool and dissipate power generation components and engine components, and improve the overall service life of the generator.

Preferably, the first casing includes a crank chamber, and the crankshaft is rotatably arranged in the crank chamber, and the air outlet assembly includes the first air outlet, and the first air outlet is opened at a side of the first casing close to the second casing. On the side, the air outlet direction of air outlet one is close to the outer wall of the crank chamber.

By adopting the above technical scheme, after the air flows through the fan and is sucked into the inner cavity from the air inlet, while cooling the stator and the rotor, it can also cool the side of the crank chamber close to the second casing, and finally flows out from the air outlet. One air outlet direction is close to the outer wall of the crank chamber, so the outer wall of the crank chamber can be cooled while the air is out, improving the cooling and heat dissipation effect.

Preferably, the first casing has an air guide part, and the air guide part is located on both sides of the first air outlet.

By adopting the above technical solution, there are air guides on both sides of the air outlet 1, which can restrict the air flow out of the air, so that the air flow is not dispersed along the outer wall of the housing 1, and the cooling effect is improved.

Preferably, the first casing includes a piston chamber, the driving mechanism includes a piston slidingly arranged in the piston chamber, one end of the piston is connected to the crankshaft through a connecting rod crank assembly, and the outer wall of the piston chamber has several The heat dissipation fins are distributed at intervals. The air outlet assembly includes the air outlet two opened on the casing two, and the air outlet direction of the air outlet two faces the heat dissipation fin one.

By adopting the above technical scheme, the piston slides in the piston chamber, and the crankshaft can be driven to rotate by the connecting rod crank assembly. After the air flow is sucked into the inner cavity by the fan, it can cool one side of the piston chamber, and then flow out through the second air outlet, and then blow To the outer wall of the piston chamber, since the outer wall of the piston chamber is designed with cooling fins, the cooling effect can be improved.

Preferably, the housing one further includes a combustion chamber communicated with the piston chamber, the starting assembly includes a carburetor, a spark plug, an intake valve and an exhaust valve communicated with the combustion chamber, and the combustion chamber communicates with the combustion chamber. The outer wall of the chamber has several heat dissipation fins 2 distributed at intervals, and the air outlet assembly includes an air outlet 3 opened on the housing 2, and the air outlet direction of the air outlet 3 faces the heat dissipation fin 2.

By adopting the above technical scheme, the carburetor transports the fuel to the second combustion chamber, the spark plug ignites the fuel, and through the cooperation of the intake valve and the exhaust valve, the piston is pushed to move back and forth; Cool one side of the combustion chamber, and then flow out through the second air outlet, and then blow to the outer wall of the piston chamber. Since the outer wall of the piston chamber is designed with cooling fins, the cooling effect can be improved.

Preferably, the housing 2 has an air guide plate 1, the air guide plate 1 extends above the heat dissipation fin 2, the air outlet 3 is located below the air guide plate 1, and the housing 2 also has a There is an air outlet four located above the wind deflector one, and the air outlet direction of the air outlet four is toward the oil tank of the generator.

By adopting the above-mentioned technical scheme, after designing the air guide plate 1, the airflow from the air outlet 3 can be guided to ensure that the air flow quickly flows to the cooling fin 2 without being dispersed, and the cooling effect is improved; at the same time, the air guide plate can also Air outlet four is guided to cool the fuel tank.

Preferably, a frequency converter is fixed on the frame, and the housing 2 is provided with an air outlet 5 communicating with the inner cavity, and the edge of the air outlet 5 has a direction that can make the air outlet 5 The second wind deflector facing the frequency converter.

By adopting the above technical solution, after the air flow enters the inner cavity through the air inlet through the fan, it can blow to the frequency converter through the air outlet five to cool the frequency converter.

Preferably, a muffler is fixed on the frame, the muffler communicates with the combustion chamber through a connecting pipe, a protective cover 1 is fixed outside the muffler, and a protective cover 2 is fixed outside the connecting pipe.

By adopting the above technical scheme, the design of the muffler can reduce the noise generated during the operation of the engine assembly, and the design of the protective cover 1 and the protective cover 2 can reduce the damage to the human body caused by the user's accidental touch.

Preferably, both the first protective cover and the second protective cover are provided with cooling holes.

By adopting the above-mentioned technical scheme, after designing the heat dissipation holes, the protective cover 1 and the protective cover 2 can not only play a protective role, but also dissipate heat from the connecting pipe and the muffler to avoid damage to the connecting pipe and the muffler.

Description of drawings

Fig. 1 is a schematic structural diagram of the generator in the embodiment.

Fig. 2 is a schematic structural view of the first casing and the second casing in the embodiment.

Fig. 3 is a schematic structural diagram of the power generation assembly in the embodiment.

Fig. 4 is a schematic structural diagram of the second housing in the embodiment.

Fig. 5 is a structural schematic diagram of the engine assembly and the power generation assembly in the embodiment.

Explanation of Reference Signs: 1. Frame; 2. Engine Assembly; 3. Power Generation Assembly; 4. Shell One; 5. Crankshaft Chamber; 6. Piston Chamber; 7. Combustion Chamber; 8. Muffler; 9. Connecting Pipe 10. Protective cover one; 11. Protective cover two; 12. Shell two; 13. Stator; 14. Rotor; 15. Rotating shaft; 16. Inner chamber; 17. Fan; 20, air outlet one; 21, outlet two; 22, air outlet three; 24, air outlet four; 25, air outlet five; Air deflector one; 30, fuel tank; 31, frequency converter; 32, air deflector two.

Detailed ways

The present application will be described in further detail below in conjunction with accompanying drawings 1-5.

As shown in FIG. 1 and FIG. 2 , the generator includes a frame 1 , an engine assembly 2 and a power generation assembly 3 .

Specifically, the engine assembly 2 includes a housing one 4, a crankshaft and a drive mechanism, and the housing one 4 is fixed on the frame 1. In this embodiment, the frame 1 is in a frame shape, and the bottom of the frame 1 has parallel Two fixed rails, the bottom of the shell one 4 has a fixed bar corresponding to the fixed rail, the fixed bar and the fixed rail are connected by a fixed seat, so that the shell one 4 has a certain gap with the ground, which is convenient for the shell one 4 heat dissipation.

As shown in Fig. 1 and Fig. 2, the crankshaft is rotated and arranged on the casing one 4. Specifically, the casing one 4 includes a crankshaft chamber 5, and the crankshaft chamber 5 is provided with a bearing, and the crankshaft is fixed to the inner ring of the bearing, thereby Realize the rotation setting of the crankshaft. Of course, as another solution, the crankshaft can also be set in rotation through a shaft sleeve or the like.

As shown in Figures 1 and 2, the housing one 4 also includes a piston chamber 6 and a combustion chamber 7, the piston chamber 6 communicates with the crank chamber 5, the combustion chamber 7 communicates with the piston chamber 6, and the driving mechanism includes a piston, carburetor The carburetor, spark plug, intake valve and exhaust valve, the piston is slidingly arranged in the piston chamber 6, and connected to the crankshaft through the connecting rod crank assembly, the carburetor, spark plug, intake valve and exhaust valve are all connected to the combustion chamber 7 Matching, the carburetor communicates with the combustion chamber 7 for supplying fuel, and an air filter is fixed on the frame 1, and the air filter communicates with the combustion chamber 7 for providing the oxygen required for fuel combustion, while the intake valve is used for Control the opening and closing of the oxygen delivery port, the cremation plug extends into the combustion chamber to ignite the fuel, and the exhaust valve is used to control the opening and closing of the exhaust gas discharge port after combustion. The connecting pipe 9 communicates with the combustion chamber 7, and exhaust gas can enter the muffler 8 through the connecting pipe 9 to reduce the noise generated when the generator is running. Protective cover one 10 is fixed outside muffler 8, protective cover two 11 is fixed outside connecting pipe 9, and protective cover one 10 and protective cover two 11 all offer cooling holes. It should be noted that the specific structures of the piston, the carburetor, the spark plug, the intake valve and the exhaust valve are prior art, and will not be repeated here.

As shown in Fig. 3 and Fig. 4, the power generation assembly 3 includes a casing two 12, a stator 13, a rotor 14 and a rotating shaft 15, the casing two 12 is fixed on the frame 1, and the casing one 4 is close to the side of the casing two 12 Combined with the second housing 12 to form an inner cavity 16, the stator 13 is fixed in the inner cavity 16.

Specifically, the stator 13 is fixed on the side of the first housing 4 close to the second housing 12 by bolts, fixing pins and the like. And the rotor 14 is fixed on the rotating shaft 15 and cooperates with the stator 13; one end of the crankshaft passes through the housing one 4 and is connected with one end of the rotating shaft 15.

As shown in FIGS. 3 and 4 , a fan 17 is connected to the other end of the rotating shaft 15 . Specifically, the rotating shaft 15 is fixedly connected to the fan 17, the center of the fan 17 is fixed on the rotating cylinder 18, and the rotating cylinder 18 is rotatably installed on the casing 2 12, and the casing 2 12 supports the fan 17 to reduce the generator operation. time energy consumption. As another solution, the fan 17 can also be fixed to the housing 2 12 through a shaft and a bearing.

The connection between the rotating shaft 15 and the fan 17 can be directly through a keyway fit mode, or through a flange connection.

As shown in FIG. 2 and FIG. 5 , the second shell 12 has an air inlet 19 communicating with the inner cavity 16 at a position close to the fan 17 .

In this embodiment, the end and the side wall of the casing two 12 near the fan 17 are provided with an air inlet 19, that is, the air inlet 19 is located at the rear end and the outer periphery of the fan 17, so that enough wind can enter through the air inlet 19 In the lumen 16.

As shown in FIG. 2 and FIG. 5 , there is an air outlet assembly communicating with the inner chamber 16 between the second housing 12 and the first housing 4 .

Specifically, the air outlet assembly includes an air outlet one 20 , an air outlet two 21 , an air outlet three 22 , an air outlet four 24 and an air outlet five 25 .

Wherein, the first air outlet 20 is set on the side of the first housing 4 close to the second housing 12 , and the air outlet direction of the first air outlet 20 is adjacent to the outer wall of the crank chamber 5 . In this embodiment, there are at least two air outlets 1 20 , and the housing 1 4 has an air guiding part 26 , and the air guiding parts 26 are located on both sides of the air outlet 1 20 . The outer diameter of the side of housing one 4 close to housing two 12 is greater than the outer diameter of crank chamber 5, and a stepped surface is formed between the two, and air outlet one 20 is located on the stepped surface to ensure that the wind flowing out of air outlet one 20 flows along the crankshaft. The outer wall of the chamber 5 flows, which plays a better heat dissipation effect.

The second air outlet is opened on the second housing 12 , and the outer wall of the piston chamber 6 has a plurality of cooling fins 1 27 distributed at intervals, and the air outlet direction of the second air outlet faces the first cooling fins 27 . The heat dissipation fin 1 27 can not only increase the contact area between the piston chamber 6 and the airflow, but also guide the airflow to improve the heat dissipation effect.

The third air outlet 22 is also set on the second housing 12 , and the outer wall of the combustion chamber 7 has a plurality of cooling fins 28 distributed at intervals, and the air outlet direction of the third air outlet 22 faces the second cooling fin 28 . The second radiating fin 28 can also guide the airflow while increasing the contact area between the combustion chamber 7 and the airflow, so as to improve the heat dissipation effect.

In order to further improve the heat dissipation effect, the housing 2 12 has an air deflector 1 29, the air deflector 29 extends to the top of the cooling fin 2 28, the air outlet 3 22 is located below the air deflector 29, and the air outlet 4 24 is opened on On the casing two 12 and above the wind deflector one 29, the air outlet direction of the four air outlets 24 faces the oil tank 30 of the generator. In this embodiment, the air outlet direction of the four air outlets 24 is upward, and the oil tank 30 is located directly above the air outlet four 24 . Of course, as another solution, the fuel tank 30 can also be located at other positions, and the air flow can be blown to the surface of the fuel tank 30 through the air outlet 4 24 under the action of the wind deflector 1 29 .

The air outlet 5 25 is also fixed on the casing 2 12 and communicates with the inner cavity 16 . The edge of the air outlet 5 25 has a wind deflector 2 32 that can make the air outlet 5 25 flow toward the frequency converter 31 .

Wherein, air outlet four 24 and air outlet five 25 are provided with filter screens to reduce the risk of external impurities entering the housing one 4 and housing two 12 through air outlet four 24 and air outlet five 25 .

The working principle of the present application is as follows: the fan 17 rotates, and the airflow is sucked into the inner chamber 16 from the outside through the air inlet 19, and then the airflow is delivered to the direction of the stator 13, the rotor 14 and the casing-4, and the stator 13, the rotor 14 and the The casing one 4 is cooled, that is to play the cooling of the crank chamber 5, the piston chamber 6 and the combustion chamber 7, and finally flows out from the air outlet one 20 to cool the outer wall of the crank chamber 5, and from the air outlet two and the air outlet three 22 flows out of the piston chamber 6 and the combustion chamber 7 for cooling, flows out from the air outlet four 24 to cool the oil tank 30, and flows out from the air outlet five 25 to cool the frequency converter 31, thereby cooling and radiating the generator as a whole.

All of the above are preferred embodiments of the present application, and are not intended to limit the protection scope of the application. Therefore, all equivalent changes made according to the structure, shape and principle of the application should be covered by the protection scope of the application. Inside.

Claims (9)

1. The variable-frequency gasoline generator is characterized by comprising a rack (1), an engine assembly (2) and a power generation assembly (3), wherein the engine assembly (2) comprises a first shell (4), a crankshaft and a driving mechanism, the first shell (4) is fixed on the rack (1), the crankshaft is rotationally arranged on the first shell (4), and the driving mechanism is arranged on the first shell (4) and can drive the crankshaft to rotate; the power generation assembly (3) comprises a second shell (12), a stator (13), a rotor (14) and a rotating shaft (15), the second shell (12) is fixed on the rack (1), one side, close to the second shell (12), of the first shell (4) is combined with the second shell (12) to form an inner cavity (16), the stator (13) is fixed in the inner cavity (16), and the rotor (14) is fixed on the rotating shaft (15) and matched with the stator (13); one end of the crankshaft penetrates through the first shell (4) to be connected with one end of the rotating shaft (15), the other end of the rotating shaft (15) is connected with a fan (17), an air inlet (19) communicated with the inner cavity (16) is formed in the position, close to the fan (17), of the second shell (12), and an air outlet assembly communicated with the inner cavity (16) is arranged between the second shell (12) and the first shell (4).

2. The variable-frequency gasoline generator according to claim 1, wherein the first housing (4) includes a crank chamber (5), the crankshaft is rotatably disposed in the crank chamber (5), the air outlet assembly includes a first air outlet (20), the first air outlet (20) is disposed at a side of the first housing (4) close to the second housing (12), and an air outlet direction of the first air outlet (20) is attached to an outer wall of the crank chamber (5).

3. The variable-frequency gasoline generator according to claim 2, wherein the first casing (4) has a wind guiding portion (26), and the wind guiding portion (26) is located at two sides of the first wind outlet (20).

4. The variable-frequency gasoline generator according to claim 2 or 3, wherein the first casing (4) comprises a piston chamber (6), the driving mechanism comprises a piston slidably disposed in the piston chamber (6), one end of the piston is connected with the crankshaft through a connecting rod crank assembly, the outer wall of the piston chamber (6) is provided with a plurality of first heat dissipation fins (27) distributed at intervals, the air outlet assembly comprises a second air outlet opened on the second casing (12), and the air outlet direction of the second air outlet faces the first heat dissipation fins (27).

5. The variable-frequency gasoline generator according to claim 4, wherein the first casing (4) further comprises a combustion chamber (7) communicated with the piston chamber (6), the engine component (2) comprises a carburetor, a spark plug, an intake valve and an exhaust valve communicated with the combustion chamber (7), the outer wall of the combustion chamber (7) is provided with a plurality of second heat dissipation fins (28) distributed at intervals, the air outlet component comprises a third air outlet (22) arranged on the second casing (12), and the air outlet direction of the third air outlet (22) faces the second heat dissipation fins (28).

6. The variable-frequency gasoline generator according to claim 5, wherein the second casing (12) has a first air guiding plate (29), the first air guiding plate (29) extends to above the second heat dissipating fin (28), the third air outlet (22) is located below the first air guiding plate (29), the second casing (12) further has a fourth air outlet (24) located above the first air guiding plate (29), and an air outlet direction of the fourth air outlet (24) faces to an oil tank (30) of the generator.

7. The variable-frequency gasoline generator according to claim 6, wherein a frequency converter (31) is fixed on the frame (1), an air outlet five (25) communicated with the inner cavity (16) is formed in the second casing (12), and an air deflector second capable of enabling the air outlet direction of the air outlet five (25) to face the frequency converter (31) is arranged on the edge of the air outlet five (25).

8. The variable-frequency gasoline generator according to claim 7, wherein a silencer (8) is fixed on the frame (1), the silencer (8) is communicated with the combustion chamber (7) through a connecting pipe (9), a first protective cover (10) is fixed outside the silencer (8), and a second protective cover (11) is fixed outside the connecting pipe (9).

9. The variable-frequency gasoline generator according to claim 8, wherein the first protective cover (10) and the second protective cover (11) are both provided with heat dissipation holes.

Images