Modularized customized diesel generating set
By using a modular and customized vacuum device and a silencer air duct design, the mechanical energy of the generator set is used to drive the air pump to create a vacuum, which solves the contradiction between noise reduction and energy saving in diesel generator sets and achieves the effect of low noise and efficient heat dissipation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- WUXI AIJIA ELECTRICAL EQUIP CO LTD
- Filing Date
- 2026-04-10
- Publication Date
- 2026-05-15
AI Technical Summary
Existing diesel generator sets present a contradiction between noise reduction and energy saving. Traditional noise reduction measures affect heat dissipation, independent vacuum pumps increase system complexity and energy consumption, and mechanical energy is not effectively utilized, resulting in noise and energy waste.
The modular and customized vacuum device utilizes the unit's own mechanical energy to drive the air pump to create a vacuum. Combined with the fact that vacuum does not transmit sound and a sound-absorbing air duct, a sound barrier is constructed. The vacuuming operation is precisely controlled through a feedback mechanism to reduce noise and vibration.
It achieves low-noise operation while maintaining a suitable temperature, reduces system power consumption, and improves the energy-saving effect and noise reduction performance of the generator set.
Smart Images
Figure CN122040401A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of diesel generator technology, specifically a modular and customized diesel generator set. Background Technology
[0002] Diesel generator sets, as a common backup power and mobile power source, are widely used in industrial, commercial and civil fields. With increasingly stringent environmental regulations and users' growing demands for equipment operating comfort, low noise and energy efficiency have become important technological development directions for generator sets.
[0003] Noise is the biggest technical problem when generator sets are running. Traditional noise reduction measures mainly rely on adding soundproof covers to the outside of the unit or filling the intake and exhaust channels with porous sound-absorbing materials. Although these passive noise reduction methods can suppress noise transmission to a certain extent, they often come at the cost of sacrificing heat dissipation performance. Since diesel engines and motors generate a lot of heat, if the ventilation and heat dissipation inside the soundproof cover is not good, the temperature of the unit will rise too high, affecting its output power and service life, and in severe cases, even causing shutdown failure. Conversely, if the ventilation volume is increased to ensure heat dissipation, it will lead to noise leakage.
[0004] In recent years, some attempts have emerged in the market to use vacuum sandwich technology for sound insulation. The principle is to use the characteristic that vacuum does not transmit sound to block the noise path. However, most existing technical solutions require the configuration of independent vacuum pumps and their drive motors, which undoubtedly increases the complexity of the system and additional power consumption, which is not conducive to achieving energy-saving operation of generator sets. Some energy-saving diesel generator sets have begun to focus on comprehensive energy utilization, but they are often limited to optimizing power output, such as controlling the fuel injection amount through electronic speed governors to adapt to load changes. However, there is a lack of effective means to recover and utilize the mechanical energy generated by the unit itself during operation, especially the energy of the cooling fan, resulting in energy waste. Summary of the Invention
[0005] The purpose of this invention is to provide a modular and customizable diesel generator set to solve the problems raised in the prior art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a modular customized diesel generator set, including a generator set and a vacuum device, wherein the vacuum device includes an outer shell, an inner shell, a transmission mechanism, an air extraction mechanism, and a feedback mechanism, wherein the transmission mechanism, the air extraction mechanism, and the feedback mechanism are all connected to the control system circuit. The outer shell is wrapped around the outer shell of the inner shell, forming a sealed cavity between the outer shell and the inner shell. The generator set is installed on the inner shell, the transmission mechanism is installed in the inner shell and connected to the generator set, and the air extraction mechanism and the feedback mechanism are installed on the outer shell. The transmission mechanism includes an electromagnetic friction disk, and the air extraction mechanism includes a permanent magnet friction disk and an air pump. The permanent magnet friction disk is connected to the input shaft of the air pump, and the axes of the permanent magnet friction disk and the electromagnetic friction disk are coincident. The air pump is connected to a sealed cavity through a pipe, and the air pump extracts gas from the sealed cavity.
[0007] Furthermore, the transmission mechanism also includes a driving gear and a driven gear. The driving gear is connected to the generator set, and the driven gear is rotatably mounted inside the inner shell via a bracket. The driven gear is coaxially connected to the driving gear. The electromagnetic friction disc is located in a sealed cavity and is coaxially connected to the driven gear. An electromagnet is installed in the electromagnetic friction disc, and the electromagnet is connected to the control system circuit. When the operator opens the hatch and starts the diesel engine, the hatch is closed after the diesel engine starts. The diesel engine drives the generator to generate electricity and also drives the fan to run. The fan cools the diesel engine and the generator. At the same time, one side of the fan drives the driving gear to rotate, which in turn drives the driven gear to rotate. The driven gear further drives the air pump to run, extracting the air from the sealed cavity between the outer shell and the inner shell, bringing the sealed cavity to a near-vacuum state.
[0008] Furthermore, the air extraction mechanism includes a splined shaft and a splined sleeve. The air pump is mounted outside the housing via a bracket. The splined sleeve penetrates the housing and is connected to the pump shaft of the air pump. The splined shaft is slidably mounted in the splined sleeve. A spring is installed at one end of the splined shaft and inside the splined sleeve. The permanent magnet friction disc is installed in a sealed cavity. The other end of the splined shaft is connected to the permanent magnet friction disc. When the diesel engine starts, the driven gear drives the electromagnetic friction disc to rotate. The electromagnet in the electromagnetic friction disc is energized to generate magnetic attraction, which attracts the permanent magnet friction disc and causes it to engage with the electromagnetic friction disc. Torque is transmitted to the splined shaft, further driving the splined sleeve to rotate. The splined sleeve then drives the air pump to operate.
[0009] Furthermore, the air extraction mechanism also includes an air extraction pipe. One end of the air extraction pipe is connected to a sealed cavity, and the other end of the air extraction pipe is connected to the air extraction end of an air pump. The air pump extracts the air from the sealed cavity through the air extraction pipe, and a vacuum state is gradually formed in the sealed cavity. Since sound does not travel in a vacuum, the noise of the diesel engine will be isolated. By adopting a vacuum jacket design, the noise of the diesel engine is isolated, achieving the effect of low-noise operation and power generation.
[0010] Furthermore, the feedback mechanism includes a sealing tube, a piston, and a rotating ring. The sealing tube is disposed outside the outer casing, and a side hole is provided on the outer casing to communicate with the sealing tube. The piston is slidably installed in the sealing tube, and the rotating ring is rotatably installed in the sealing tube. A torsion spring is provided between the rotating ring and the sealing tube. A hook is provided on the piston, and the hook contacts the rotating ring. A trigger is provided on the rotating ring, and a triggering circuit that cooperates with the trigger is provided in the sealing tube. As the air pump operates and draws air, the pressure in the sealed cavity decreases, and the piston moves towards the outer casing against the thrust of the return spring. The shaft and the hook pin move synchronously with the piston. When the hook pin moves towards the outer casing, due to the obstruction of the elastic baffle, the hook pin forces the rotating ring to rotate through the inclined part of the closed slide groove.
[0011] Furthermore, a return spring is provided between the piston and the outer shell, the hook is composed of a shaft and a hook pin, a closed slide groove is provided on the inner wall of the rotating ring, the closed slide groove is triangular in shape, an elastic baffle is installed in the closed slide groove, a notch is provided on the outer contour of the rotating ring, the trigger is rotatably installed in the notch, a coil spring is provided at the junction of the trigger and the rotating ring, until the hook pin moves to the end of the stroke, indicating that the sealed cavity is close to a vacuum state, the air pumping is completed, the hook pin enters the right-angle side of the closed slide groove, the rotating ring rotates rapidly under the action of the torsion spring, under the action of centrifugal force, the trigger overcomes the constraint force of the coil spring and is thrown outward, the trigger hits the trigger circuit, the control system receives the signal sent by the trigger circuit, cuts off the power supply to the electromagnet, the permanent magnet friction disk is disconnected from the electromagnetic friction disk, the torque is no longer transmitted, the air pump stops running, and the air pumping stops; After power generation is completed and the unit is shut down, the operator opens the air intake channel on the outer casing to release the negative pressure in the sealed cavity. The hook returns from the other right-angle side of the closed slide and passes over the elastic baffle. When the unit is restarted later, the sealed cavity will be drawn back into a negative pressure state.
[0012] Furthermore, a shock-absorbing support material is provided between the outer shell and the inner shell. A hatch is provided on the inner shell, and a vibration damping hammer is provided at the bottom of the inner shell. The resonance frequency of the vibration damping hammer is the same as the resonance frequency of the generator set. When the generator set is running, it generates vibration. The vibration damping hammer reduces the vibration of the inner shell through its own resonance vibration. The shock-absorbing support material blocks the vibration of the inner shell from being transmitted to the outer shell, thereby reducing vibration noise and further enhancing the effect of low-noise power generation.
[0013] Furthermore, the inner wall of the inner shell is provided with an air inlet and an air outlet, the air inlet connecting the inside of the inner shell to the bottom, and the air outlet connecting the inside of the inner shell to the top. The outer casing is provided with an upper air outlet groove and a lower air inlet groove. The upper air outlet groove penetrates the outer casing and has a loop-type silencer air passage. The structure of the lower air inlet groove is the same as that of the upper air outlet groove. The upper air outlet groove is connected to the air outlet hole, and the lower air inlet groove is connected to the air inlet hole. When the fan is running, the low-pressure side of the inner casing is connected to the air inlet hole, and the heat dissipation side is connected to the air outlet hole. External air enters the air inlet hole through the lower air inlet groove, dissipates heat from the generator and diesel engine, and is discharged from the upper air outlet groove. The design of the loop-type silencer air passage prevents the diesel engine operating noise from propagating outward through the air passage, so that the noise energy is dissipated before it exits the air passage, thus preventing noise propagation.
[0014] Furthermore, the generator set includes a generator, a diesel engine, a fan, and a coupling. The generator is connected to the output shaft of the diesel engine via the coupling. The fan is located on the side of the diesel engine away from the generator and is connected to the output shaft of the diesel engine. The drive gear is connected to the rotating shaft of the fan.
[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a transmission mechanism, the mechanical energy generated by the unit's own operation drives the air pump to perform vacuuming in the sealed cavity between the outer and inner casings. No additional independent drive motor is required, which reduces the system's power consumption and operating costs. Automatic control based on feedback signals enables precise start and stop of the vacuuming operation, avoiding energy waste caused by prolonged ineffective operation of the air pump and improving the energy-saving effect of the generator set.
[0016] 2. Utilizing the physical property that sound does not travel through a vacuum, an efficient sound barrier is constructed between the noise source and the external environment, fundamentally blocking the outward propagation path of diesel engine operating noise. At the same time, the vibration damping hammer effectively suppresses unit vibration, reducing solid noise transmitted through the structure. The upper exhaust slot and lower intake slot on the outer casing both adopt a winding silencer air passage, further consuming the sound wave energy propagating outward through the heat dissipation channel, thus achieving low-noise operation of the generator set.
[0017] 3. When the fan is running, external cooling air enters the inner casing through the silencer duct and the air inlet and outlet holes to effectively cool the generator set. The hot air is then discharged through the air outlet holes and another set of silencer ducts. This solves the technical problem of poor heat dissipation caused by the sealing of traditional noise reduction structures, and ensures that the generator set maintains a suitable operating temperature while operating at low noise. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall appearance and structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the internal structure of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the internal structure of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the internal structure of the present invention. Figure 3 ; Figure 6 This is a schematic diagram of the sealing tube portion of the present invention; Figure 7 This is a schematic diagram of the rotating part of the present invention.
[0019] In the diagram: 1. Outer shell; 2. Inner shell; 3. Door; 4. Upper air outlet; 5. Lower air inlet; 6. Vibration damper; 7. Air inlet vent; 8. Air outlet; 9. Generator; 10. Diesel engine; 11. Fan; 12. Coupling; 13. Drive gear; 14. Driven gear; 15. Electromagnetic friction disc; 16. Permanent magnet friction disc; 17. Splined shaft; 18. Splined sleeve; 19. Air pump; 20. Suction pipe; 21. Sealing pipe; 22. Return spring; 23. Piston; 24. Shaft; 25. Hook pin; 26. Rotary ring; 27. Elastic baffle; 28. Trigger. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] Example: Figures 1-7 As shown, the present invention provides a technical solution: a modular customized diesel generator set, including a generator set and a vacuum device. The vacuum device includes an outer shell 1, an inner shell 2, a transmission mechanism, an air extraction mechanism, and a feedback mechanism. The transmission mechanism, air extraction mechanism, and feedback mechanism are all connected to the control system circuit. The outer shell 1 is wrapped around the outer shell 2, forming a sealed cavity between the outer shell 1 and the inner shell 2. The generator set is installed on the inner shell 2. The transmission mechanism is installed in the inner shell 2 and connected to the generator set. The air extraction mechanism and the feedback mechanism are installed on the outer shell 1. The transmission mechanism includes an electromagnetic friction disk 15, and the air extraction mechanism includes a permanent magnet friction disk 16 and an air pump 19. The permanent magnet friction disk 16 is connected to the input shaft of the air pump 19, and the axes of the permanent magnet friction disk 16 and the electromagnetic friction disk 15 coincide. The air pump 19 is connected to the sealed cavity through a pipe and extracts gas from the sealed cavity.
[0022] A shock-absorbing support material is provided between the outer shell 1 and the inner shell 2. A hatch 3 is provided on the inner shell 2. A vibration damping hammer 6 is provided at the bottom of the inner shell 2. The resonance frequency of the vibration damping hammer 6 is the same as that of the generator set. When the generator set is running, it generates vibration. The vibration damping hammer 6 reduces the vibration of the inner shell 2 through its own resonance vibration. The shock-absorbing support material blocks the vibration of the inner shell 2 from being transmitted to the outer shell 1, thereby reducing vibration noise and further enhancing the effect of low-noise power generation.
[0023] The transmission mechanism also includes a driving gear 13 and a driven gear 14. The driving gear 13 is connected to the generator set, and the driven gear 14 is rotatably mounted inside the inner housing 2 via a bracket. The driven gear 14 is coaxially connected to the driving gear 13. The electromagnetic friction disk 15 is located in a sealed cavity and is coaxially connected to the driven gear 14. An electromagnet (not shown in the figure) is installed in the electromagnetic friction disk 15 and is connected to the control system circuit. The generator set includes a generator 9, a diesel engine 10, a fan 11, and a coupling 12. The generator 9 is connected to the output shaft of the diesel engine 10 via the coupling 12. The fan 11 is located away from the generator 9. On one side, the blower 11 is connected to the output shaft of the diesel engine 10, and the drive gear 13 is connected to the rotating shaft of the blower 11. The operator opens the hatch 3 and starts the diesel engine 10. After the diesel engine 10 starts, the hatch 3 is closed. The diesel engine 10 drives the generator 9 to run and generate electricity. The diesel engine 10 also drives the blower 11 to run at the same time. The blower 11 cools the diesel engine 10 and the generator 9. At the same time, one side of the blower 11 drives the drive gear 13 to rotate. The drive gear 13 drives the driven gear 14 to rotate. The driven gear 14 further drives the air pump 19 to run, extracting the air from the sealed cavity between the outer shell 1 and the inner shell 2, so that the sealed cavity is evacuated to a near-vacuum state.
[0024] The air extraction mechanism includes a splined shaft 17 and a splined sleeve 18. An air pump 19 is mounted outside the outer casing 1 via a bracket. The splined sleeve 18 penetrates the outer casing 1 and is connected to the pump shaft of the air pump 19. The splined shaft 17 is slidably mounted within the splined sleeve 18. One end of the splined shaft 17 and the inside of the splined sleeve 18 are fitted with a spring. A permanent magnet friction disc 16 is installed in a sealed cavity. The other end of the splined shaft 17 is connected to the permanent magnet friction disc 16. The air extraction mechanism also includes an air extraction pipe 20. One end of the air extraction pipe 20 communicates with the sealed cavity, and the other end is connected to the air extraction end of the air pump 19. The diesel engine 10 starts simultaneously... When the driven gear 14 drives the electromagnetic friction disk 15 to rotate, the electromagnet in the electromagnetic friction disk 15 is energized and generates magnetic attraction, the permanent magnet friction disk 16 is attracted and engages with the electromagnetic friction disk 15, the torque is transmitted to the spline shaft 17, and further drives the spline sleeve 18 to rotate. The spline sleeve 18 drives the air pump 19 to run. The air pump 19 extracts the air from the sealed cavity through the air extraction pipe 20, and a vacuum state is gradually formed in the sealed cavity. Since sound does not travel in a vacuum, the noise of the diesel engine 10 will be isolated. By adopting the vacuum jacket design, the noise of the diesel engine 10 is isolated, and the effect of low-noise operation and power generation is achieved.
[0025] The feedback mechanism includes a sealing tube 21, a piston 23, and a rotating ring 26. The sealing tube 21 is located outside the outer casing 1. A side hole is provided on the outer casing 1 to communicate with the sealing tube 21. The piston 23 is slidably installed in the sealing tube 21, and the rotating ring 26 is rotatably installed in the sealing tube 21. A torsion spring is provided between the rotating ring 26 and the sealing tube 21. A hook is provided on the piston 23, which contacts the rotating ring 26. A trigger 28 is provided on the rotating ring 26. A triggering circuit that cooperates with the trigger 28 is provided in the sealing tube 21. A return spring 22 is provided between the piston 23 and the outer casing 1. The hook is composed of a shaft 24 and a hook pin 25. A closed slide groove is provided on the inner wall of the rotating ring 26. The closed slide groove is triangular in shape. An elastic baffle 27 is installed in the closed slide groove. A notch is provided on the outer contour of the rotating ring 26. The trigger 28 is rotatably installed in the notch. A coil spring is provided at the junction of the trigger 28 and the rotating ring 26.
[0026] As the air pump 19 operates and draws air, the pressure in the sealed cavity decreases. The piston 23 overcomes the thrust of the return spring 22 and moves towards the outer shell 1. The shaft 24 and the hook pin 25 move synchronously with the piston 23. When the hook pin 25 moves towards the outer shell 1, due to the obstruction of the elastic baffle 27, the hook pin 25 forces the rotating ring 26 to rotate through the inclined part of the closed slide groove until the hook pin 25 moves to the end of its stroke, indicating that the sealed cavity is close to a vacuum state and the air extraction process is completed. The hook pin 25 enters the right-angled part of the closed slide groove, and the rotating ring 26 rotates rapidly under the action of the torsion spring. Under the action of centrifugal force, the trigger 28 overcomes the constraint force of the coil spring and is thrown outward. The trigger 28 hits the trigger circuit. The control system receives the signal from the trigger circuit, cuts off the power supply to the electromagnet, disconnects the permanent magnet friction disk 16 from the electromagnetic friction disk 15, and the torque is no longer transmitted. The air pump 19 stops running, and the air extraction stops. After power generation is completed and the machine is shut down, the operator opens the air intake channel on the outer casing 1 to release the negative pressure in the sealed cavity. The hook pin 25 returns from the other right-angle side of the closed slide. The hook pin 25 passes over the elastic baffle 27. When the machine is restarted later, the sealed cavity will be drawn back into a negative pressure state.
[0027] The inner shell 2 has an air inlet hole 7 and an air outlet hole 8 in its inner wall. The air inlet hole 7 connects the inside of the inner shell 2 to the bottom, and the air outlet hole 8 connects the inside of the inner shell 2 to the top. The outer shell 1 has an upper air outlet groove 4 and a lower air inlet groove 5. The upper air outlet groove 4 penetrates the outer shell 1 and has a loop-type silencer air passage. The structure of the lower air inlet groove 5 is the same as that of the upper air outlet groove 4. The upper air outlet groove 4 is connected to the air outlet hole 8, and the lower air inlet groove 5 is connected to the air inlet hole 7. When the fan 11 is running, the low-pressure side of the inner shell 2 is connected to the air inlet hole 7, and the heat dissipation side is connected to the air outlet hole 8. External air enters the air inlet hole 7 through the lower air inlet groove 5, dissipates heat from the generator 9 and the diesel engine 10, and is discharged from the upper air outlet groove 4. The design of the loop-type silencer air passage prevents the operating noise of the diesel engine 10 from propagating outward through the air passage, so that the noise energy is dissipated before it exits the air passage, thus preventing noise propagation.
[0028] The working principle of this invention is as follows: When the generator set is running, it generates vibration. The vibration damping hammer 6 reduces the vibration of the inner shell 2 through its own resonance vibration. The vibration damping support material blocks the vibration of the inner shell 2 from being transmitted to the outer shell 1, thereby reducing vibration noise and enhancing the effect of low-noise power generation.
[0029] The operator opens the hatch 3 and starts the diesel engine 10. After the diesel engine 10 starts, the hatch 3 is closed. The diesel engine 10 drives the generator 9 to generate electricity. The diesel engine 10 also drives the fan 11 to run. The fan 11 cools the diesel engine 10 and the generator 9. At the same time, one side of the fan 11 drives the drive gear 13 to rotate. The drive gear 13 drives the driven gear 14 to rotate. The driven gear 14 further drives the air pump 19 to run, extracting the air from the sealed cavity between the outer shell 1 and the inner shell 2, so that the sealed cavity is evacuated to a near-vacuum state.
[0030] As the diesel engine 10 starts, the driven gear 14 drives the electromagnetic friction disk 15 to rotate. The electromagnet in the electromagnetic friction disk 15 is energized to generate magnetic attraction, and the permanent magnet friction disk 16 is attracted and engaged with the electromagnetic friction disk 15. The torque is transmitted to the spline shaft 17, which further drives the spline sleeve 18 to rotate. The spline sleeve 18 drives the air pump 19 to run. The air pump 19 extracts the air from the sealed cavity through the air extraction pipe 20, and a vacuum state is gradually formed in the sealed cavity. Since sound does not travel in a vacuum, the noise of the diesel engine 10 will be isolated. By adopting the vacuum jacket design, the noise of the diesel engine 10 is isolated, and the effect of low-noise operation and power generation is achieved.
[0031] As the air pump 19 operates and draws air, the pressure in the sealed cavity decreases. The piston 23 overcomes the thrust of the return spring 22 and moves towards the outer shell 1. The shaft 24 and the hook pin 25 move synchronously with the piston 23. When the hook pin 25 moves towards the outer shell 1, due to the obstruction of the elastic baffle 27, the hook pin 25 forces the rotating ring 26 to rotate through the inclined part of the closed slide groove until the hook pin 25 moves to the end of its stroke, indicating that the sealed cavity is close to a vacuum state and the air extraction process is completed. The hook pin 25 enters the right-angled part of the closed slide groove, and the rotating ring 26 rotates rapidly under the action of the torsion spring. Under the action of centrifugal force, the trigger 28 overcomes the constraint force of the coil spring and is thrown outward. The trigger 28 hits the trigger circuit. The control system receives the signal from the trigger circuit, cuts off the power supply to the electromagnet, disconnects the permanent magnet friction disk 16 from the electromagnetic friction disk 15, and the torque is no longer transmitted. The air pump 19 stops running, and the air extraction stops. After power generation is completed and the machine is shut down, the operator opens the air intake channel on the outer casing 1 to release the negative pressure in the sealed cavity. The hook pin 25 returns from the other right-angle side of the closed slide. The hook pin 25 passes over the elastic baffle 27. When the machine is restarted later, the sealed cavity will be drawn back into a negative pressure state.
[0032] When the fan 11 is running, the low-pressure side of the inner casing 2 is connected to the air intake port 7, and the heat dissipation and air outlet side is connected to the air outlet port 8. External air enters the air intake port 7 through the lower air intake groove 5, and after cooling the generator 9 and diesel engine 10, it is discharged from the upper air outlet groove 4. The design of the wrap-around silencer air passage prevents the operating noise of the diesel engine 10 from spreading outward through the air passage, so that the noise energy is dissipated before it leaves the air passage, thus preventing noise transmission.
[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A modular, customizable diesel generator set, comprising a generator set, characterized in that: It also includes a vacuum device, which includes an outer shell (1), an inner shell (2), a transmission mechanism, a pumping mechanism, and a feedback mechanism. The transmission mechanism, the pumping mechanism, and the feedback mechanism are all connected to the control system circuit. The outer shell (1) is wrapped around the outside of the inner shell (2), and a sealed cavity is formed between the outer shell (1) and the inner shell (2). The generator set is installed on the inner shell (2), the transmission mechanism is installed in the inner shell (2), and the transmission mechanism is connected to the generator set. The air extraction mechanism and the feedback mechanism are installed on the outer shell (1). The transmission mechanism includes an electromagnetic friction disk (15), and the air extraction mechanism includes a permanent magnet friction disk (16) and an air pump (19). The permanent magnet friction disk (16) is connected to the input shaft of the air pump (19), and the axes of the permanent magnet friction disk (16) and the electromagnetic friction disk (15) are coincident. The air pump (19) is connected to the sealed cavity through a pipe, and the air pump (19) extracts the gas in the sealed cavity.
2. The modular customized diesel generator set according to claim 1, characterized in that: The transmission mechanism also includes a drive gear (13) and a driven gear (14). The drive gear (13) is connected to the generator set. The driven gear (14) is rotatably mounted inside the inner housing (2) via a bracket. The driven gear (14) is coaxially connected to the drive gear (13). The electromagnetic friction disk (15) is located in a sealed cavity. The electromagnetic friction disk (15) is coaxially connected to the driven gear (14). An electromagnet is provided in the electromagnetic friction disk (15). The electromagnet is connected to the control system circuit.
3. The modular customized diesel generator set according to claim 1, characterized in that: The air extraction mechanism includes a splined shaft (17) and a splined sleeve (18). The air pump (19) is mounted outside the outer shell (1) by a bracket. The splined sleeve (18) penetrates the outer shell (1) and is connected to the pump shaft of the air pump (19). The splined shaft (17) is slidably mounted in the splined sleeve (18). One end of the splined shaft (17) and the inside of the splined sleeve (18) are provided with a spring. The permanent magnet friction disk (16) is installed in a sealed cavity. The other end of the splined shaft (17) is connected to the permanent magnet friction disk (16).
4. A modularly customized diesel generator set according to claim 1, characterized in that: The air extraction mechanism also includes an air extraction pipe (20), one end of which is connected to a sealed cavity, and the other end of which is connected to the air extraction end of an air pump (19).
5. A modularly customized diesel generator set according to claim 1, characterized in that: The feedback mechanism includes a sealing tube (21), a piston (23), and a rotating ring (26). The sealing tube (21) is located outside the outer shell (1). A side hole is provided on the outer shell (1) and communicates with the sealing tube (21). The piston (23) is slidably installed in the sealing tube (21). The rotating ring (26) is rotatably installed in the sealing tube (21). A torsion spring is provided between the rotating ring (26) and the sealing tube (21). A hook is provided on the piston (23) and contacts the rotating ring (26). A trigger (28) is provided on the rotating ring (26). A trigger circuit that cooperates with the trigger (28) is provided in the sealing tube (21).
6. A modularly customized diesel generator set according to claim 5, characterized in that: A return spring (22) is provided between the piston (23) and the outer shell (1). The hook is composed of a shaft (24) and a hook pin (25). A closed slide groove is provided on the inner wall of the rotating ring (26). The closed slide groove is triangular in shape. An elastic baffle (27) is installed in the closed slide groove. A notch is provided on the outer contour of the rotating ring (26). The trigger (28) is rotatably installed in the notch. A coil spring is provided at the junction of the trigger (28) and the rotating ring (26).
7. A modularly customized diesel generator set according to claim 1, characterized in that: A shock-absorbing support material is provided between the outer shell (1) and the inner shell (2). A hatch (3) is provided on the inner shell (2). A damping hammer (6) is provided at the bottom of the inner shell (2). The resonance frequency of the damping hammer (6) is the same as the resonance frequency of the generator set.
8. A modularly customized diesel generator set according to claim 1, characterized in that: The inner shell (2) has an air inlet hole (7) and an air outlet hole (8) in its inner wall. The air inlet hole (7) connects the inside of the inner shell (2) to the bottom, and the air outlet hole (8) connects the inside of the inner shell (2) to the top. The outer shell (1) is provided with an upper air outlet groove (4) and a lower air inlet groove (5). The upper air outlet groove (4) penetrates the outer shell (1) and is provided with a winding silencer air passage. The structure of the lower air inlet groove (5) is the same as that of the upper air outlet groove (4). The upper air outlet groove (4) is connected to the air outlet hole (8), and the lower air inlet groove (5) is connected to the air inlet hole (7).
9. A modularly customized diesel generator set according to claim 2, characterized in that: The generator set includes a generator (9), a diesel engine (10), a fan (11) and a coupling (12). The generator (9) is connected to the output shaft of the diesel engine (10) through the coupling (12). The fan (11) is located on the side of the diesel engine (10) away from the generator (9). The fan (11) is connected to the output shaft of the diesel engine (10). The drive gear (13) is connected to the rotating shaft of the fan (11).