A generator

Abstract

The application relates to a generator which comprises a box, a power generation motor, a water tank, a water outlet pipe, a heat dissipation pipe, a water inlet pipe, an impeller and sound-absorbing cotton, the box is provided with a containing cavity, a motor shell of the power generation motor is connected to the bottom wall of the containing cavity, the water tank is connected to the outer wall of the box, the water tank is provided with a water storage cavity, one end of the water outlet pipe is communicated with the water storage cavity, the other end of the water outlet pipe is communicated with one end of the heat dissipation pipe, the other end of the heat dissipation pipe is communicated with one end of the water inlet pipe, the other end of the water inlet pipe is communicated with the water storage cavity, the impeller is rotationally connected to the inner wall of the water storage cavity, the impeller is coaxially arranged with the pipe opening of the water inlet pipe, the heat dissipation pipe is arranged around the outer wall of the motor shell of the power generation motor, and the sound-absorbing cotton is connected to the inner wall of the containing cavity. The sound-absorbing cotton reduces the transmission of the generator noise, the rotation of the impeller realizes the circulation of water flow in the water storage cavity, the water outlet pipe, the heat dissipation pipe and the water inlet pipe, and the heat dissipation efficiency of the generator is improved.

Description

Technical Field

[0001] This application relates to the field of generators, and more particularly to a generator. Background Technology

[0002] Generators have a wide range of applications in industrial and agricultural production, national defense, science and technology, and daily life. A generator is a mechanical device that converts mechanical energy into electrical energy. It is driven by a water turbine, steam turbine, diesel engine, or other power machinery, converting the energy generated by water flow, air flow, fuel combustion, or nuclear fission into mechanical energy, which is then transferred to the generator and converted into electrical energy.

[0003] During operation, the copper losses, iron losses, permanent magnet eddy current losses, and mechanical losses generated by the generator cause the temperature of various components to rise. High temperatures not only degrade generator performance but also cause reliability issues. For example, the increased wire resistance and reduced remanence of permanent magnets caused by high temperatures significantly reduce the power and efficiency of permanent magnet motors. High temperatures also cause a significant decrease in insulation life and irreversible demagnetization of permanent magnets, severely affecting the generator's service life.

[0004] Small generators are widely used due to their small size and light weight. Currently, small generators generally consist of a housing and a working device installed inside the housing. For easy movement, casters are also provided at the bottom of the housing. To prevent the noise generated by the generator during operation from directly affecting the environment, sound-absorbing cotton is also installed on the inner wall of the housing. The sound-absorbing cotton reduces the transmission of generator noise, achieving the purpose of noise reduction and quiet operation.

[0005] However, the installation of sound-absorbing cotton reduces the generator's heat dissipation efficiency and affects its service life. Summary of the Invention

[0006] In order to improve the heat dissipation efficiency of a generator, this application provides a generator.

[0007] The generator provided in this application adopts the following technical solution:

[0008] A generator includes a housing, a generator motor, a water tank, an outlet pipe, a heat dissipation pipe, an inlet pipe, an impeller, and sound-absorbing cotton. The housing has a receiving cavity, the generator motor housing is connected to the bottom wall of the receiving cavity, the water tank is connected to the outer wall of the housing, the water tank has a water storage cavity, one end of the outlet pipe is connected to the water storage cavity, the other end of the outlet pipe is connected to one end of the heat dissipation pipe, the other end of the heat dissipation pipe is connected to one end of the inlet pipe, the other end of the inlet pipe is connected to the water storage cavity, the impeller is rotatably connected to the inner wall of the water storage cavity, the impeller is coaxially arranged with the inlet of the inlet pipe, the heat dissipation pipe is wound around the outer wall of the generator motor housing, and the sound-absorbing cotton is connected to the inner wall of the receiving cavity.

[0009] By adopting the above technical solutions, the sound-absorbing cotton reduces the transmission of generator noise, thus achieving the purpose of noise reduction. The impeller rotation enables water to circulate in the water storage chamber, outlet pipe, heat dissipation pipe, and inlet pipe, thereby achieving the purpose of heat dissipation for the generator motor and improving the generator's heat dissipation efficiency.

[0010] Preferably, the outer wall of the water tank is provided with a water inlet, one end of the water inlet pipe is connected to the inner wall of the water inlet, a ring body is coaxially provided on the outer periphery of the water inlet, the ring body is connected to the inner wall of the water storage cavity, and the impeller is coaxially provided in the ring body.

[0011] By adopting the above technical solution, the impeller rotates inside the ring, which reduces the pressure inside the ring and makes it easier to control the water intake through the inlet pipe.

[0012] Preferably, it further includes a first synchronous pulley, a drive shaft, a second synchronous pulley, and a synchronous belt. The motor shaft of the generator is coaxially and fixedly connected to a rotating shaft. The first synchronous pulley is coaxially and fixedly connected to the outer periphery of the rotating shaft. The drive shaft is rotatably connected to the water tank. The rotation axis of the drive shaft is parallel to the axis of the rotating shaft. The impeller is disposed in the water storage cavity and coaxially and fixedly connected to the outer periphery of the drive shaft. The second synchronous pulley is coaxially and fixedly connected to the outer periphery of the drive shaft. The synchronous belt is sleeved on the outer periphery of the first and second synchronous pulleys.

[0013] By adopting the above technical solution, the combustion of gasoline in the internal combustion engine controls the rotation of the crankshaft connecting rod, which in turn controls the rotation of the motor shaft. The rotating shaft is fixed coaxially with the motor shaft, so that the rotating shaft follows the rotation. The rotating shaft drives the drive shaft to rotate through the synchronous pulley and synchronous belt, which in turn controls the rotation of the impeller, realizing water circulation and achieving water cooling for the generator motor, thus improving the heat dissipation efficiency of the generator.

[0014] Preferably, it also includes a sliding plate, which is slidably connected to the inner wall of the receiving cavity. The sound-absorbing cotton is connected to the end of the sliding plate facing the generator motor. The sound-absorbing cotton has a through hole. The sliding plate has a connecting hole. The connecting hole and the through hole are arranged opposite to each other. The outer wall of the box has heat dissipation holes. The heat dissipation holes are used to allow air to pass through the through hole and the connecting hole and then enter the receiving cavity for heat dissipation.

[0015] By adopting the above technical solution, water circulation is used to cool the generator. If the water heats up too quickly in a certain environment and cannot control the cooling of the generator, the sliding plate is controlled to slide so that the heat dissipation holes and through holes are aligned, which facilitates air cooling and improves heat dissipation efficiency by sacrificing some of the generator noise reduction.

[0016] Preferably, it further includes a fixing block and a thermal expansion block. The fixing block is connected to the inner wall of the receiving cavity. The fixing block has a fixing groove at one end facing the sliding plate. The length direction of the fixing groove is parallel to the sliding direction of the sliding plate. One end of the thermal expansion block is connected to the bottom of the fixing groove, and the other end of the thermal expansion block is connected to the sliding plate.

[0017] By adopting the above technical solution, the heated expansion block expands under heat in the cavity, automatically pushing the sliding plate to open the heat dissipation holes, realizing air cooling, which is easy to operate and improves the heat dissipation efficiency of the generator.

[0018] Preferably, it also includes a fan, which is coaxially fixedly connected to the outer periphery of the rotating shaft, and the fan is located on the side of the first synchronous pulley away from the generator motor.

[0019] By adopting the above technical solution, when the heat dissipation holes are open, the fan improves the heat dissipation efficiency of air cooling by accelerating air convection.

[0020] Preferably, the inner wall of the receiving cavity is provided with a groove, the sliding plate is slidably embedded in the groove, and one side of the sliding plate is attached to the inner wall of the receiving cavity.

[0021] By adopting the above technical solution, the groove guides the sliding of the sliding plate, making the sliding plate slide stably and easy to control.

[0022] Preferably, it also includes a synchronizing rod, and the sliding plate is provided with multiple sliding plates, with the two ends of the synchronizing rod respectively connected to two opposite sliding plates.

[0023] By adopting the above technical solution, the synchronizing rod controls the two opposing sliding plates to move synchronously, so that the opposite heat dissipation holes open synchronously, which facilitates air convection and improves heat dissipation efficiency.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The sound-absorbing cotton reduces the transmission of generator noise, thus achieving the purpose of noise reduction. The impeller rotation enables water to circulate in the water storage chamber, outlet pipe, heat dissipation pipe and inlet pipe, which achieves the purpose of heat dissipation of generator motor and improves the heat dissipation efficiency of generator.

[0026] 2. The combustion of gasoline in the internal combustion engine controls the rotation of the crankshaft connecting rod, which in turn controls the rotation of the motor shaft. The rotating shaft is fixed coaxially with the motor shaft, so that the rotating shaft follows the rotation. The rotating shaft drives the drive shaft to rotate through the synchronous pulley and synchronous belt, which in turn controls the rotation of the impeller to realize water circulation, thereby achieving water cooling of the generator motor and improving the heat dissipation efficiency of the generator.

[0027] 3. Water circulation is used to cool the generator. If the water heats up too quickly in a certain environment and cannot control the cooling of the generator, the sliding plate is controlled to slide so that the heat dissipation holes and through holes are aligned, which facilitates air cooling and improves heat dissipation efficiency by sacrificing some of the generator noise reduction. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a generator.

[0029] Figure 2 This is a schematic diagram of the internal structure of a generator after it has been cut open.

[0030] Figure 3 It is a schematic diagram of the overall structure of the fuel tank, internal combustion engine, generator, water tank, water outlet pipe, radiator pipe, water inlet pipe, drive components and fan.

[0031] Figure 4 This is a cross-sectional view of a generator.

[0032] Figure 5 This is a schematic diagram of the overall structure of the sliding plate and the synchronizing rod.

[0033] Explanation of reference numerals in the attached drawings: 1. Housing; 11. Top plate; 111. Oil inlet; 112. Handle; 113. Slide groove; 12. Bottom plate; 121. Roller; 122. Support column; 123. Sliding cavity; 13. Front plate; 14. Rear plate; 15. Left plate; 151. Heat dissipation hole; 16. Right plate; 17. Receiving cavity; 21. Oil tank; 22. Internal combustion engine; 23. Generator; 231. Shaft; 3. Water tank; 31. Water storage cavity; 32. Water outlet; 33. 34. Water inlet; 4. Ring body; 51. Cylinder body; 52. Perforation; 53. Water outlet pipe; 6. Heat dissipation pipe; 74. Water inlet pipe; 8. Drive assembly; 9. First synchronous pulley; 10. Drive shaft; 11. Second synchronous pulley; 12. Synchronous belt; 13. Impeller; 14. Air-cooled assembly; 15. Sliding plate; 16. Connecting hole; 17. Synchronous rod; 18. Fixing block; 19. Fixing groove; 20. Thermal expansion block; 21. Fan; 22. Sound-absorbing cotton; 33. Through hole. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0035] This application discloses a generator. (Refer to...) Figure 2 and Figure 3 A generator includes a housing 1, an oil tank 21, an internal combustion engine 22, a generator motor 23, a water tank 3, a cylinder 4, a water outlet pipe 51, a heat dissipation pipe 52, a water inlet pipe 53, a drive assembly 6, and an air-cooling assembly 7.

[0036] Reference Figure 1 and Figure 2 The box body 1 is designed as a cuboid. The box body 1 includes a top plate 11, a bottom plate 12, a front plate 13, a rear plate 14, a left plate 15, and a right plate 16. The top plate 11 is parallel to the bottom plate 12, the front plate 13 is parallel to the rear plate 14, the left plate 15 is parallel to the right plate 16, and the front plate 13, the left plate 15, and the top plate 11 are perpendicular to each other. The housing 1 has a receiving cavity 17, in which the fuel tank 21, internal combustion engine 22 and generator 23 are all located. The two ends of the fuel tank 21 are fixedly connected to the front plate 13 and the rear plate 14, respectively. The top plate 11 has a filling port 111. The upper end of the fuel tank 21 extends out of the housing 1 from the filling port 111 for fuel intake. The housing of the internal combustion engine 22 and the housing of the generator 23 are both fixedly connected to the upper end of the bottom plate 12. The fuel tank 21 is connected to the internal combustion engine 22. The crankshaft connecting rod of the internal combustion engine 22 is coaxially fixedly connected to the motor shaft of the generator 23. The axis of the motor shaft is perpendicular to the left plate 15. The generator 23 is located on the side of the internal combustion engine 22 near the right plate 16.

[0037] A roller 121 is rotatably connected to one end of the base plate 12. The rotation axis of the roller 121 is perpendicular to the front plate 13. The outer periphery of the roller 121 is in contact with the ground. A support column 122 is fixedly connected to the lower end of the other end of the base plate 12. The lower end of the support column 122 is used to abut against the ground. A handle 112 is connected to the upper end of the top plate 11. The handle 112 is used for the operator to hold. The length direction of the handle 112 is parallel to the rotation axis of the roller 121. The distance from the handle 112 to the roller 121 is greater than the distance from the handle 112 to the support column 122.

[0038] Reference Figure 2 The water tank 3 is provided with a water storage cavity 31. The two ends of the cylinder 4 are respectively fixedly connected to the bottom wall and the top wall of the water storage cavity 31. The cylinder 4 is coaxially provided with a through hole 41. The axis of the through hole 41 is collinear with the axis of the oil filling port 111. The inner diameter of the through hole 41 is equal to the inner diameter of the oil filling port 111. The through hole 41 passes through the cylinder 4 and the water tank 3. The through hole 41 is used to allow the upper end of the oil tank 21 to extend out. The water tank 3 is fixedly connected to the upper end of the top plate 11.

[0039] Reference Figure 3 and Figure 4 The lower end of the water tank 3 is provided with an outlet 32, which is connected to the water storage cavity 31. One end of the water outlet pipe 51 is fixedly connected to the inner wall of the outlet 32. The other end of the water outlet pipe 51 passes through the tank body 1 and extends into the receiving cavity 17 and is connected to one end of the heat dissipation pipe 52. The other end of the heat dissipation pipe 52 is connected to one end of the water inlet pipe 53. The heat dissipation pipe 52 is evenly wound around the outer periphery of the motor housing of the generator motor 23. The side wall of the water tank 3 is provided with an inlet 33. The axis of the inlet 33 is perpendicular to the left plate 15. The other end of the water inlet pipe 53 extends out of the tank body 1 and is fixedly connected to the inner wall of the inlet 33. The outer periphery of the inlet 33 is coaxially provided with an annulus 34, which is fixedly connected to the inner wall of the water storage tank 3.

[0040] Reference Figure 2 and Figure 3 The drive assembly 6 includes a first synchronous pulley 61, a drive shaft 62, a second synchronous pulley 63, and a synchronous belt 64. The motor shaft of the generator motor 23, away from the internal combustion engine 22, is coaxially fixedly connected to a rotating shaft 231. The first synchronous pulley 61 is coaxially fixedly connected to the outer periphery of the rotating shaft 231.

[0041] Reference Figure 3 and Figure 4 The drive shaft 62 is rotatably connected to the water tank 3. The rotation axis of the drive shaft 62 is collinear with the axis of the water inlet 33. One end of the drive shaft 62 located in the water storage cavity 31 is coaxially fixedly connected to an impeller 65. The impeller 65 is coaxially located in the ring body 34. The second synchronous pulley 63 is coaxially fixedly connected to one end of the drive shaft 62 located outside the water tank 3. The synchronous belt 64 is sleeved on the outer periphery of the first synchronous pulley 61 and the second synchronous pulley 63.

[0042] Reference Figure 2 and Figure 5 The air-cooled assembly 7 includes a sliding plate 71, a synchronizing rod 72, a fixing block 73, a thermal expansion block 74, and a fan 75. The upper end of the base plate 12 and the lower end of the top plate 11 are each provided with two sliding grooves 113. The length direction of the sliding grooves 113 is perpendicular to the rear plate 14. Two sliding plates 71 are provided, with both the upper and lower ends of the sliding plates 71 slidably embedded in the sliding grooves 113. The sliding direction of the sliding plates 71 is parallel to the length direction of the sliding grooves 113. One sliding plate 71 is attached to the end of the left plate 15 facing the right plate 16, and the other sliding plate 71 is attached to the end of the right plate 16 facing the left plate 15.

[0043] A sound-absorbing cotton 8 is fixedly connected to one end of the sliding plate 71 facing the generator 23. The sound-absorbing cotton 8 has multiple through holes 81, which are spaced apart along the length and width of the sound-absorbing cotton 8. The sliding plate 71 has connecting holes 711, which are the same number as the through holes 81 and are arranged one-to-one with the through holes 81. Both the left plate 15 and the right plate 16 have multiple heat dissipation holes 151. The sliding plate 71 controls whether the heat dissipation holes 151 and the connecting holes 711 are connected. The heat dissipation holes 151 are used to supply air to pass through the through holes 81 and the connecting holes 711 and then enter the receiving cavity 17 for heat dissipation. The bottom plate 12 has a sliding cavity 123, which is connected to the sliding groove 113 on the bottom plate 12. The two ends of the synchronizing rod 72 are fixedly connected to the two sliding plates 71 respectively, and the length direction of the synchronizing rod 72 is perpendicular to the left plate 15.

[0044] Reference Figure 2Two fixing blocks 73 are provided, which are respectively fixedly connected to the ends of the left plate 15 and the right plate 16 facing the generator 23. A fixing groove 731 is provided at the end of the fixing block 73 facing the sliding plate 71. The length direction of the fixing groove 731 is parallel to the sliding direction of the sliding plate 71. One end of the thermal expansion block 74 is fixedly connected to the bottom of the fixing groove 731, and the other end of the thermal expansion block 74 is fixedly connected to the sliding plate 71. A fan 75 is coaxially fixedly connected to the outer periphery of the rotating shaft 231, and the fan 75 is located at the end of the first synchronous pulley 61 away from the generator 23. Under normal ambient temperature, the heat dissipation holes 151 and the connection holes 711 are staggered, and the heat dissipation holes 151 are closed to reduce noise generation. When the temperature inside the receiving cavity 17 is too high, the thermal expansion block 74 expands due to heat, pushing the sliding plate 71 to slide so that the heat dissipation holes 151 and the connection holes 711 are aligned, and the heat dissipation holes 151 are opened.

[0045] The implementation principle of a generator according to an embodiment of this application is as follows: the rotation of the motor shaft of the generator motor 23 drives the rotating shaft 231 to rotate, causing the first synchronous pulley 61 to rotate, which in turn drives the second synchronous pulley 63 to rotate via the synchronous belt 64, thereby causing the drive shaft 62 to rotate. The rotation of the impeller 65 causes water in the inlet pipe 53 to flow into the water storage chamber 31, and the water in the outlet pipe 51 flows towards the heat dissipation pipe 52 under the action of gravity, realizing water circulation and cooling the generator motor 23. When the temperature in the receiving cavity 17 continues to rise, the thermal expansion block 74 expands due to heat, pushing the sliding plate 71 to slide so that the heat dissipation hole 151 is aligned with the connection hole 711, the heat dissipation hole 151 opens, and the fan 75 rotates to accelerate the air flow in the receiving cavity 17, realizing air cooling.

[0046] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A generator, characterized in that: The device includes a housing (1), a generator (23), a water tank (3), a water outlet pipe (51), a heat dissipation pipe (52), a water inlet pipe (53), an impeller (65), and sound-absorbing cotton (8). The housing (1) has a receiving cavity (17). The motor housing of the generator (23) is connected to the bottom wall of the receiving cavity (17). The water tank (3) is connected to the outer wall of the housing (1). The water tank (3) has a water storage cavity (31). One end of the water outlet pipe (51) is connected to the water storage cavity (31). The other end of (51) is connected to one end of the heat dissipation pipe (52), the other end of the heat dissipation pipe (52) is connected to one end of the water inlet pipe (53), the other end of the water inlet pipe (53) is connected to the water storage chamber (31), the impeller (65) is rotatably connected to the inner wall of the water storage chamber (31), the impeller (65) is coaxially arranged with the pipe opening of the water inlet pipe (53), the heat dissipation pipe (52) is wrapped around the outer wall of the motor housing of the generator motor (23), and the sound-absorbing cotton (8) is connected to the inner wall of the receiving cavity (17); It also includes a first synchronous pulley (61), a drive shaft (62), a second synchronous pulley (63), and a synchronous belt (64). The motor shaft of the generator (23) is coaxially fixedly connected to the rotating shaft (231). The first synchronous pulley (61) is coaxially fixedly connected to the outer circumference of the rotating shaft (231). The drive shaft (62) is rotatably connected to the water tank (3). The rotation axis of the drive shaft (62) is parallel to the axis of the rotating shaft (231). The impeller (65) is located in the water storage cavity (31) and coaxially fixedly connected to the outer circumference of the drive shaft (62). The second synchronous pulley (63) is coaxially fixedly connected to the outer circumference of the drive shaft (62). The synchronous belt (64) is sleeved on the outer circumference of the first synchronous pulley (61) and the second synchronous pulley (63). It also includes a sliding plate (71), which is slidably connected to the inner wall of the receiving cavity (17). The sound-absorbing cotton (8) is connected to the end of the sliding plate (71) facing the generator (23). The sound-absorbing cotton (8) is provided with a through hole (81). The sliding plate (71) is provided with a connecting hole (711). The connecting hole (711) is directly opposite to the through hole (81). The outer wall of the box (1) is provided with a heat dissipation hole (151). The heat dissipation hole (151) is used to allow air to pass through the through hole (81) and the connecting hole (711) and enter the receiving cavity (17) for heat dissipation. It also includes a fixing block (73) and a thermal expansion block (74). The fixing block (73) is connected to the inner wall of the receiving cavity (17). The fixing block (73) has a fixing groove (731) at one end facing the sliding plate (71). The length direction of the fixing groove (731) is parallel to the sliding direction of the sliding plate (71). One end of the thermal expansion block (74) is connected to the bottom of the fixing groove (731), and the other end of the thermal expansion block (74) is connected to the sliding plate (71). The through holes (81) are provided in multiple ways. The through holes (81) are spaced apart along the length and width of the sound-absorbing cotton (8). The number of connecting holes (711) is the same as that of the through holes (81). The connecting holes (711) and the through holes (81) are arranged in a one-to-one correspondence. The heat dissipation holes (151) are provided in multiple ways. The sliding plate (71) slides to control whether the heat dissipation holes (151) and the connecting holes (711) are connected.

2. A generator according to claim 1, characterized in that: The outer wall of the water tank (3) is provided with an inlet (33), one end of the inlet pipe (53) is connected to the inner wall of the inlet (33), and an annular body (34) is coaxially provided on the outer periphery of the inlet (33). The annular body (34) is connected to the inner wall of the water storage cavity (31), and the impeller (65) is coaxially provided inside the annular body (34).

3. A generator according to claim 1, characterized in that: It also includes a fan (75), which is coaxially fixed to the outer periphery of the rotating shaft (231). The fan (75) is located on the side of the first synchronous pulley (61) away from the generator motor (23).

4. A generator according to claim 1, characterized in that: The inner wall of the receiving cavity (17) is provided with a groove (113), and the sliding plate (71) is slidably embedded in the groove (113), with one side of the sliding plate (71) attached to the inner wall of the receiving cavity (17).

5. A generator according to claim 1, characterized in that: It also includes a synchronizing rod (72), and the sliding plate (71) is provided with multiple rods. The two ends of the synchronizing rod (72) are respectively connected to two opposite sliding plates (71).

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