Vehicle-mounted low-noise diesel generating set

Abstract

The utility model relates to a vehicle-mounted low-noise diesel generator set which comprises a shell, the shell comprises a chassis, the chassis is horizontally arranged and detachably fixed in a vehicle, a supporting frame is arranged in the middle of the upper side of the chassis, a diesel generator is installed on the supporting frame, and the diesel generator is arranged in the shell. The periphery of the diesel generator in the horizontal direction is arranged on the inner side wall of the shell at intervals, an air guide channel is arranged on an engine air outlet of the diesel generator in a communicating mode, first heat insulation cotton is arranged in the air guide channel, a silencer is arranged on the side, away from the engine air outlet, of the air guide channel in a communicating mode, and second heat insulation cotton is further arranged in the shell. The silencer is embedded in the second heat insulation cotton, and an axial flow fan is further installed on the shell and located on one side of the diesel generator in the width direction. The air conditioner has the effects of low noise and rapid heat dissipation.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle-mounted generator sets, and in particular to a vehicle-mounted low-noise diesel generator set. Background Art

[0002] Vehicle-mounted diesel generator sets are widely used in various vehicles, especially in the fields of engineering machinery, emergency rescue, remote operation vehicles, etc., to provide reliable power supply for vehicle-mounted equipment.

[0003] Noise is one of the main drawbacks of traditional diesel generator sets. The mechanical and exhaust noise generated by diesel engines during operation significantly impacts the vehicle interior and surrounding environment. This is particularly true when used in urban areas or noise-sensitive environments, where noise pollution becomes a pressing issue. Summary of the Invention

[0004] In order to quickly dissipate heat while reducing noise, the present application provides a vehicle-mounted low-noise diesel generator set.

[0005] The present application provides a vehicle-mounted low-noise diesel generator set that adopts the following technical solutions:

[0006] A vehicle-mounted low-noise diesel generator set includes a shell, the shell includes a chassis, the chassis is horizontally arranged, the chassis can be detachably fixed in the vehicle, a support frame is provided in the middle of the upper side of the chassis, a diesel generator is mounted on the support frame, the diesel generator is horizontally spaced apart on all four sides by the inner wall of the shell, an air duct is connected to the engine air outlet of the diesel generator, a first heat insulation cotton is provided in the air duct, a muffler is connected to the side of the air duct away from the engine air outlet, a second heat insulation cotton is further provided in the shell, the muffler is buried in the second heat insulation cotton, an axial fan is also mounted on the shell, the axial fan is located on one side in the width direction of the diesel generator.

[0007] By employing this technical solution, the diesel generator is isolated from the inner wall of the casing and equipped with air ducts and silencers, significantly reducing the operating noise of the diesel generator set inside the vehicle. The thermal insulation effectively blocks heat transfer and reduces noise generated by the diesel generator's heat dissipation. An axial fan further cools the interior of the casing.

[0008] Preferably, the support frame includes a bottom beam, which is horizontally arranged, and a shock-absorbing bracket is respectively provided at both ends of the bottom beam in the length direction. The shock-absorbing bracket includes two vertically arranged positioning columns, and a support beam is mounted on the two shock-absorbing brackets. The length direction of the support beam is parallel to the length direction of the bottom beam, and a through hole is vertically penetrated at one end of the length direction of the support beam. There are two through holes at each end of the length direction of the support beam, and the two positioning columns on one side are respectively passed through the corresponding pupils. The diameter of any through hole is larger than the diameter of the corresponding positioning column. Two bottom beams are arranged at intervals along its own width direction, and the diesel generator is mounted on the two bottom beams.

[0009] By adopting the above technical solution, the support frame can effectively absorb and alleviate the vibration of the diesel generator set during operation by setting up shock-absorbing brackets and support beams, avoiding the vibration from being transmitted to the vehicle body, thereby reducing noise and vibration, and improving the operating stability and safety of the generator set.

[0010] Preferably, the shock-absorbing bracket includes two mounting plates spaced apart in the vertical direction, a connecting column is provided between the two mounting plates, and the angle between the length direction of the connecting column and the vertical direction is an acute angle. Any of the mounting plates extends to one side along the length direction of the bottom beam, is bent and fixedly connected to the connecting column, and any of the positioning columns is fixed on the upper mounting plate.

[0011] By adopting this technical solution, the shock-absorbing bracket effectively enhances its shock absorption effect by installing an angled connecting column between the two mounting plates and securing them with a positioning column. This further reduces vibration transmission during diesel generator operation, protects the vehicle structure, extends the service life of the equipment, and reduces the impact of noise on the vehicle interior.

[0012] Preferably, a fan is also installed in the shell, and the fan is located on the side of the diesel generator away from the muffler. A plurality of ventilation holes are provided on the side wall of the shell close to the fan, and the engine air inlet of the diesel generator points to the fan.

[0013] By adopting the above technical solution, the fan can enhance the air flow inside the diesel generator set, and cooperate with the axial flow fan to quickly discharge heat, keep the equipment running at a low temperature, and avoid efficiency loss or failure caused by overheating.

[0014] Preferably, an oil radiator is further provided between the side wall of the housing close to the fan and the fan, and the oil radiator is connected to the diesel oil circuit in the diesel generator.

[0015] By adopting the above technical solution, the oil radiator can effectively reduce the oil temperature, further improve the operating efficiency and stability of the diesel generator, extend the service life of the equipment, and at the same time prevent damage to the oil caused by overheating. The fan inhales air, and the lower temperature air helps to improve the heat dissipation effect of the oil radiator.

[0016] Preferably, a plurality of ventilation holes are provided on the shell, and an air inlet channel and an air outlet channel are also provided in the shell, and the air inlet channel and the air outlet channel are respectively connected to the heat dissipation channel of the generator in the diesel generator.

[0017] By adopting the above technical solution, a good air circulation can be formed through the vents arranged on the shell and the air inlet and outlet channels arranged inside the shell, ensuring that the heat dissipation channels of the diesel generator set can continuously exchange cooling air, effectively reducing the equipment temperature and improving the overall operating efficiency and safety.

[0018] Preferably, a power supply and a voltage regulator are further provided in the housing, and the power supply and the voltage regulator are respectively electrically connected to the diesel generator.

[0019] By implementing these technical solutions, the power supply and voltage regulator help ensure stable power output from the diesel generator, providing a reliable power supply. The voltage regulator regulates the voltage, preventing voltage fluctuations from damaging the generator set or other electrical equipment, further improving system reliability.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] 1. By installing thermal insulation cotton, air ducts, mufflers and fans, the noise of the diesel generator set when running in the vehicle is significantly reduced, and the heat emission of the equipment is effectively managed, ensuring that the equipment operates stably with low noise and appropriate temperature;

[0022] 2. The use of shock-absorbing brackets and support beam structures effectively absorbs and alleviates the vibration of the diesel generator set, reduces the impact of vibration on the vehicle body and equipment, and improves the operating stability and safety of the generator set;

[0023] 3. By setting up an oil radiator, power supply and voltage regulator, the operating temperature and voltage stability of the diesel generator set are guaranteed, preventing overheating and voltage fluctuations from damaging the equipment, extending the service life of the equipment and improving the reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an axonometric diagram showing the overall structure of a low-noise vehicle-mounted diesel generator set according to an embodiment of the present application;

[0025] Figure 2This is an axonometric diagram showing the bottom structure of a low-noise vehicle-mounted diesel generator set according to an embodiment of the present application;

[0026] Figure 3 This is an axonometric diagram mainly showing the internal structure of a vehicle-mounted low-noise diesel generator set in an embodiment of the present application;

[0027] Figure 4 This is an axonometric diagram mainly showing the oil radiator and air duct structure in the embodiment of the present application;

[0028] Figure 5 This is an axonometric diagram mainly showing the structure of the air inlet channel and the air outlet channel on the chassis in the embodiment of the present application;

[0029] Figure 6 yes Figure 5 The enlarged view of point A in the middle mainly shows the overall structure of the shock-absorbing bracket.

[0030] Figure numerals: 1. Shell; 11. Chassis; 111. Air inlet channel; 112. Air outlet channel; 113. Oil collecting pan; 12. Mounting frame; 13. Fixing frame; 14. Positioning frame; 141. Positioning plate; 142. Partition; 15. Side panel; 16. Air guide duct; 17. Oil outlet; 18. Ventilation port; 19. Maintenance door; 2. Insulation cotton support ear; 3. Support frame; 31. Bottom beam; 32. Shock-absorbing bracket; 321. Mounting plate; 322. Connecting column; 323. Positioning column; 33. Support beam; 331. Through hole; 34. Crossbeam; 35. Support column; 4. Axial fan; 5. Fan; 6. Oil radiator; 7. Power supply; 8. Voltage regulator; 9. Junction box. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-6 This application is described in further detail.

[0032] The embodiment of the present application discloses a vehicle-mounted low-noise diesel generator set.

[0033] See also Figure 1-Figure 4The vehicle-mounted low-noise diesel generator set includes a housing 1, which is provided with multiple ventilation openings 18. These openings 18 extend through the thickness of the sidewalls of the housing 1. The housing 1 includes a horizontal chassis 11 at the bottom. A support frame 3 is located in the center of the chassis 11, on which the diesel generator is mounted. The diesel generator is spaced horizontally from the housing 1 on all four sides. A power supply 7 and a voltage regulator 8 are also located on either side of the housing 1 along its width. Both are removably secured to the chassis 11. Both the power supply 7 and the voltage regulator 8 are connected to the diesel generator via telecommunications. The housing 1 also houses a control system, a control screen, an axial fan 4, and a fan 5. All components are connected to the control system via telecommunications, as is the control screen. A junction box 9 is located at one end of the housing 1. External circuits are connected to the housing 1 through the junction box 9.

[0034] An oil receiving pan 113 is also provided on the chassis 11, and an oil outlet 17 is provided on the housing 1. An end of the oil receiving pan 113 facing away from the diesel engine passes through the housing 1. The housing 1 is also provided with a plurality of maintenance doors 19.

[0035] In actual operation, the staff fixes the vehicle-mounted low-noise diesel generator set in the vehicle by fixing the chassis 11. The generator output line in the diesel generator is connected to the external equipment through the junction box 9. The staff operates the control system through the control screen to operate various components and adjust the working status of the entire vehicle-mounted low-noise diesel generator set.

[0036] See also Figure 3 、 Figure 4 A mounting bracket 12 is fixed to one side of the housing 1 in the width direction, and the control screen is fixed to the mounting bracket 12. A fixing bracket 13 is fixed to the side of the housing 1 in the width direction away from the control screen, and the axial fan 4 is fixed to the fixing bracket 13, and the axis direction of the axial fan 4's blade rotation axis is parallel to the width direction of the housing 1.

[0037] A positioning frame 14 is provided at one end near the junction box 9 in the length direction. The positioning frame 14 includes a vertically arranged positioning plate 141. The thickness direction of the positioning plate 141 is parallel to the length direction of the housing 1. The fan 5 is fixed on the positioning plate 141. The axis direction of the fan blade rotation shaft of the fan 5 is parallel to the length direction of the housing 1. A partition 142 is also provided on the side of the positioning plate 141 facing away from the diesel generator. The partition 142 is vertically arranged. The thickness direction of the partition 142 is parallel to the width direction of the housing 1. A plurality of partitions 142 are spaced apart along their own width direction. An oil radiator 6 is fixed to the side wall of the housing 1 near the positioning plate 141 through an ear plate. The oil radiator 6 is connected to the diesel oil circuit in the diesel generator.

[0038] The diesel generator consists of a diesel engine and a generator that converts kinetic energy into electrical energy. The diesel engine's air inlet is directed toward the fan 5. Multiple vents 18 are provided on the sidewall of the housing 1 near the positioning plate 141. In actual operation, when the operator activates the fan 5, outside air is drawn into the housing 1 through the vents 18, where it enters the diesel engine. Simultaneously, the cooler outside air removes heat from the oil radiator 6 as it flows, improving its heat dissipation efficiency.

[0039] The diesel engine's air outlet is connected to an air duct 16, located on the upper side of the diesel generator. Air duct 16 is horizontally arranged, and inside it is a layer of insulation padding. Multiple insulation pad lugs 2 are fixed to the sidewalls of air duct 16, each inserted into insulation padding, securing it within air duct 16. A muffler is connected to the side of air duct 16 facing away from the diesel engine's air outlet.

[0040] A side panel 15 is fixed to the end of the air duct 16 facing away from the diesel engine's air outlet. Side panel 15 is vertically arranged, with its thickness parallel to the length of the housing 1. Side panel 15 is located on the side of the diesel generator facing away from the fan 5. Heat insulation wool 2 is provided between side panel 15 and the side wall of the housing 1 facing away from the diesel generator, and the muffler is embedded within the heat insulation wool 2. Multiple vents 18 are provided on the chassis 11. In actual operation, the lower-temperature air outside the housing 1, influenced by the fan 5, flows into the housing 1 from the side of the housing 1's width near the positioning plate 141, and is then drawn into the diesel engine. The air discharged from the diesel engine first enters the air duct 16, passes through the heat insulation wool 1, and then enters the muffler. After passing through the muffler, it is discharged from the housing 1 from the bottom. Heat insulation wool 1 can effectively absorb some noise and vibration before the air enters the muffler, reducing high-frequency noise in the air, thereby alleviating the burden on the muffler and further reducing the overall noise of the diesel generator set. The second insulation cotton can absorb the residual noise around the muffler. Through the superposition effect of multiple layers of sound insulation materials, it can effectively reduce the spread of noise, thereby significantly improving the overall noise reduction effect.

[0041] See also Figure 4 、 Figure 5 The chassis 11 is also fixedly provided with an air inlet channel 111 and an air outlet channel 112. A plurality of vents 18 are provided on the chassis 11 corresponding to the air inlet channel 111 and the air outlet channel 112. The air inlet channel 111 and the air outlet channel 112 are respectively connected to the heat dissipation channel of the generator in the diesel generator.

[0042] See also Figure 4-Figure 6The support frame 3 includes a bottom beam 31 that is detachably fixed to the chassis 11. The bottom beam 31 is horizontally arranged, and the length direction of the bottom beam 31 is parallel to the width direction of the shell 1. A shock-absorbing bracket 32 ​​is arranged at one end of the bottom beam 31. The shock-absorbing bracket 32 ​​includes a mounting plate 321, and the mounting plate 321 is horizontally arranged. Two mounting plates 321 are arranged at intervals along the vertical direction. A connecting column 322 is arranged between the two mounting plates 321, and the length direction of the connecting column 322 forms a certain angle with the vertical direction. Any mounting plate 321 extends to one side along the length direction of the bottom beam 31, and is fixed to the connecting column 322 after being bent. A positioning column 323 is formed on the side of the two mounting plates 321 that face away from each other. The positioning column 323 is vertically arranged, and two positioning columns 323 are arranged at intervals along the width direction of the bottom beam 31. A mounting hole is provided on the bottom beam 31 , which passes through the bottom beam 31 in the vertical direction. The diameter of the mounting hole is larger than the diameter of the positioning column 323 . The positioning column 323 on the lower mounting plate 321 is vertically inserted into the mounting hole. There are two mounting holes and two positioning columns 323 corresponding to each other.

[0043] A support beam 33 is mounted on the bottom beam 31, its length parallel to the bottom beam 31. A through hole 331 is defined in the support beam 33, extending vertically through the support beam 33. The diameter of the through hole 331 is larger than the diameter of the positioning post 323. Two through holes 331 are coaxially located with the positioning posts 323 on the upper mounting plate 321. The two positioning posts 323 on the upper mounting plate 321 extend vertically through the through holes 331. A shock-absorbing bracket 32 ​​is positioned at each end of the bottom beam 31. Two bottom beams 31 are spaced apart along the width of the housing 1. Cross beams 34 extend across the two support beams 33, their lengths parallel to the length of the housing 1. The ends of the cross beams 34 are secured to the support beams 33 on either side. Two cross beams 34 are spaced apart along the width of the housing 1. The diesel generator is secured to the cross beams 34.

[0044] The positioning post 323 is vertically inserted into the through hole 331 or the mounting hole. The diameter of the positioning post 323 is smaller than that of the through hole 331 and the mounting hole. This allows the positioning post 323 to move freely within a limited range, preventing vibration from being directly transmitted through the rigid connection, thereby optimizing the shock absorption effect. The two mounting plates 321 are bent at a certain angle and fixed to the connecting post 322, providing a certain degree of elastic deformation capability. When the diesel generator vibrates, it can absorb and disperse some of the vibration, preventing the vibration from being directly transmitted to the chassis 11 and the vehicle, thereby helping to reduce noise and vibration during operation.

[0045] A support column 35 is also provided on the support beam 33 along one side of the housing 1's length. A positioning hole is formed at the lower end of the support column 35, extending vertically through the support column 35. The diameter of the positioning hole is larger than that of the positioning column 323. The positioning hole is coaxially arranged with the corresponding positioning column 323 on the upper mounting plate 321, and two corresponding positioning columns 323 are provided. The two positioning columns 323 on the upper mounting plate 321 are each vertically inserted into the through hole 331. The upper end of the support column 35 is fixedly connected to the outer wall of the air guide 16. One support column 35 is provided at each end of the support beam 33 along the width of the housing 1.

[0046] The implementation principle of a vehicle-mounted low-noise diesel generator set in an embodiment of the present application is as follows: the staff carries the entire vehicle-mounted low-noise diesel generator set into the vehicle so that the chassis 11 and the vehicle body are relatively fixed. The circuit of the diesel generator is connected to the external circuit through the junction box 9. The fan 5 and the axial flow fan 4 are controlled to start by the control screen to control the start of the diesel generator. The diesel engine in the diesel generator is based on the principle of an internal combustion engine. It relies on high temperature to ignite diesel and generate power, and then converts the power into electrical energy through the generator. The electricity generated by the diesel generator set is output through the junction box 9 and supplied to external equipment.

[0047] Fan 5 continuously draws cooler air from outside the casing 1 into the engine. Air is drawn in through the diesel engine's air intake, and exhaust gases are discharged through the exhaust port. This exhaust passes through air duct 16 and into the muffler before exiting the casing 1 through lower vent 18. During this process, thermal insulation pads 1 and 2 help reduce noise generated by vibration during air discharge. Shock absorber bracket 32 ​​absorbs and disperses some of the overall vibration of the diesel generator, preventing it from being directly transmitted to the chassis 11 and vehicle, thereby reducing noise and vibration during operation.

[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A vehicle-mounted low-noise diesel generator set, characterized by: The invention comprises a shell (1), wherein the shell (1) comprises a chassis (11), the chassis (11) is arranged horizontally, the chassis (11) can be detachably fixed in a vehicle, a support frame (3) is arranged in the middle of the upper side of the chassis (11), a diesel generator is mounted on the support frame (3), the diesel generator is arranged at intervals on the inner wall of the shell (1) on all four sides in the horizontal direction, an air duct (16) is connected to the engine air outlet of the diesel generator, a heat insulation cotton is arranged in the air duct (16), a muffler is connected to the side of the air duct (16) away from the engine air outlet, a heat insulation cotton is further arranged in the shell (1), and the muffler is buried in the heat insulation cotton. An axial flow fan (4) is also mounted on the shell (1), and the axial flow fan (4) is located on one side in the width direction of the diesel generator.

2. The vehicle-mounted low-noise diesel generator set according to claim 1, characterized in that: The support frame (3) includes a bottom beam (31), the bottom beam (31) is horizontally arranged, and a shock-absorbing bracket (32) is respectively arranged at both ends of the bottom beam (31) in the longitudinal direction. The shock-absorbing bracket (32) includes two vertically arranged positioning columns (323). The two shock-absorbing brackets (32) are mounted on the two support beams (33). The longitudinal direction of the support beam (33) is parallel to the longitudinal direction of the bottom beam (31). A through hole (331) is vertically penetrated at one end of the longitudinal direction of the support beam (33). Two through holes (331) are respectively arranged at both ends of the longitudinal direction of the support beam (33). The two positioning columns (323) on one side are respectively penetrated in corresponding pupils. The diameter of any one of the through holes (331) is larger than the diameter of the corresponding positioning column (323). Two bottom beams (31) are arranged at intervals along the width direction of the bottom beam (31). The diesel generator is mounted on the two bottom beams (31).

3. The vehicle-mounted low-noise diesel generator set according to claim 2, characterized in that: The shock-absorbing bracket (32) includes two mounting plates (321) spaced apart in the vertical direction. A connecting column (322) is provided between the two mounting plates (321). The angle between the length direction of the connecting column (322) and the vertical direction is an acute angle. Any of the mounting plates (321) extends to one side along the length direction of the bottom beam (31), is bent, and is fixedly connected to the connecting column (322). Any of the positioning columns (323) is fixed on the upper mounting plate (321).

4. The vehicle-mounted low-noise diesel generator set according to claim 1, characterized in that: A fan (5) is also installed in the housing (1), and the fan (5) is located on the side of the diesel generator away from the muffler. A plurality of ventilation openings (18) are provided on the side wall of the housing (1) close to the fan (5), and the engine air inlet of the diesel generator points towards the fan (5).

5. The vehicle-mounted low-noise diesel generator set according to claim 4, characterized in that: An oil radiator (6) is also provided between the side wall of the housing (1) close to the fan (5) and the fan (5), and the oil radiator (6) is connected to the diesel oil circuit in the diesel generator.

6. The vehicle-mounted low-noise diesel generator set according to claim 1, characterized in that: The housing (1) is provided with a plurality of ventilation openings (18), and an air inlet channel (111) and an air outlet channel (112) are also provided in the housing (1), wherein the air inlet channel and the air outlet channel (112) are respectively connected to the heat dissipation channel of the generator in the diesel generator.

7. The vehicle-mounted low-noise diesel generator set according to claim 1, characterized in that: A power supply (7) and a voltage regulator (8) are also provided in the housing (1), and the power supply (7) and the voltage regulator (8) are respectively connected to the diesel generator via telecommunications.

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