Kitchen garbage truck power output system

Abstract

The invention provides a kitchen garbage truck power output system, and relates to the technical field of garbage trucks. The power output system of the kitchen garbage truck comprises a garbage truck body, and a fuel oil driving device, an electric driving device and a transfer case which are arranged in the garbage truck body. The power of the fuel oil driving device and the power of the electric driving device can be output, the cooling box is arranged below the transfer case, meanwhile, the thermoelectric power generation chip is used for absorbing high temperature generated during operation of the electromagnetic clutch for thermoelectric power generation, and then the battery pack is charged, so that power is supplied to the multiple sets of first cooling fans; after the first cooling fan is started, external air is sucked and blown into the transfer case, blowing heat dissipation is conducted on the interior of the transfer case, energy consumption is effectively reduced, the semiconductor chilling plate is arranged in the air guide pipe, forced cooling can be conducted on the interior of the air guide pipe, and therefore the lower wall of the thermoelectric power generation chip is cooled; the temperature difference between the upper and lower surfaces of the thermoelectric power generation chip is larger, and the power generation efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage trucks, and in particular to a power output system of a kitchen garbage truck. Background Art

[0002] At present, urban garbage management often involves placing numerous garbage cans at garbage collection points, which are then collected by garbage trucks at designated locations every day. In order to increase loading speed and automation and reduce labor intensity, garbage trucks are often equipped with garbage can lifting and flipping mechanisms, carriage lifting and dumping mechanisms, and so on. In order to increase the loading capacity, garbage compression equipment is often also provided, and the garbage in the garbage can is poured into the garbage truck and then compressed. These actions are often driven by hydraulic cylinders and require a matching hydraulic oil pump. In particular, the kitchen garbage truck that collects and transports kitchen waste is also equipped with a cleaning device, which requires a water pump and an air compressor.

[0003] In the prior art, the air compressor, hydraulic oil pump and water pump of the food garbage truck are dispersedly arranged and driven independently by their own driving mechanisms. The structure is not compact enough, occupies a large space, and is complex as a whole with high manufacturing cost. Therefore, an improved technology is proposed to provide a power assembly for a garbage truck, wherein the two sides of the power box bottom plate are fixedly connected with side plates erected upward; the top of the side plate is fixedly connected with a suspension bracket connected to the garbage truck; the power box bottom plate is installed with a transfer case, a water pump, a hydraulic oil pump and an air compressor, the transfer case includes a prime mover shaft and a driven shaft parallel to each other, the prime mover shaft and the driven shaft are connected by gear transmission, one end of the prime mover shaft is connected to the transmission shaft of the garbage truck, and the other end of the prime mover shaft is connected to the driving shaft of the water pump through a coupling; one end of the driven shaft is connected to the input shaft of the hydraulic oil pump, and the other end of the driven shaft is installed with an electromagnetic clutch, and the output pulley of the electromagnetic clutch is connected to the driving shaft pulley of the air compressor through a transmission belt. The powertrain uses a transmission shaft as input and drives the air compressor, hydraulic oil pump and water pump at the same time. It has a compact structure and is easy to install. However, the power unit is only suitable for a single power output. The existing garbage truck power systems are divided into fuel drive, electric drive and hybrid drive. The fuel drive has the problems of high fuel consumption and loud noise during operation. The pure electric drive has the problem of insufficient endurance. The hybrid drive can combine the advantages of the above two power systems and is the current development trend of garbage trucks. However, the above-mentioned improved technology proposes a garbage truck powertrain, which is obviously not suitable for hybrid drive and needs further improvement. In addition, when the garbage truck power output system is actually used, it is easy to generate heat, and the power output needs to be improved. The system is used to dissipate heat. For example, a new type of energy-saving and environmentally friendly electric garbage truck mentioned in the prior art mentions that the cooling system of the compression garbage truck provided is a water cooling system, and the cooling system includes a cooling pipe, a cooling water pump and a cooling drive device; the cooling water pump is driven by the cooling drive device to force the cooling medium to flow in the cooling pipe, so that the corresponding components of the compression garbage truck maintain an appropriate temperature. However, the heat dissipation part in the disclosed technology will increase energy consumption. In order to solve this problem, the common practice in the market is to add solar charging panels and use photoelectric conversion to offset this part of the energy consumption. However, the kitchen garbage truck usually operates in the early morning or at night, which leads to greater limitations when photoelectric conversion is applied to kitchen garbage trucks. In summary, it is necessary to further optimize and improve the power output system of the food garbage truck in order to obtain a power output system that is suitable for hybrid drive and has a compact structure, while being able to perform low-consumption heat dissipation. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies of the prior art, the present invention provides a power output system for a food garbage truck, which solves the problems of input mismatch and high energy consumption during heat dissipation when the food garbage truck is driven by hybrid power in the prior art.

[0005] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: a power output system for a food garbage truck, including a garbage truck body and a fuel drive device, an electric drive device and a transfer case arranged inside the garbage truck body, a cooling box is fixedly connected to the lower wall of the transfer case and close to the right wall, the upper end of the cooling box passes through the lower wall of the transfer case and passes through the inside of the transfer case, a mounting plate is fixedly connected to the connection between the cooling box and the transfer case, a plurality of groups of air holes that pass through up and down are arranged on the inner wall of the mounting plate, a second main transmission shaft and a first main transmission shaft are rotatably connected to the lower wall of the inner side of the transfer case in a front-to-back distribution, the left ends of the second main transmission shaft and the first main transmission shaft both pass through the left wall of the transfer case and extend to the left side of the transfer case, the second main transmission shaft, One end of the first main drive shaft extending to the left side of the transfer case is respectively connected to the output ends of the fuel drive device and the electric drive device, the first transfer shaft is rotatably connected to the lower wall inside the transfer case and located between the second main drive shaft and the first main drive shaft, the third transfer shaft and the second transfer shaft are respectively rotatably connected to the lower wall inside the transfer case and located at the second main drive shaft and the right end of the first main drive shaft, the upper wall of the mounting plate is fixedly connected with an air compressor, a hydraulic pump and a water pump in sequence from front to back, the right ends of the first transfer shaft, the second transfer shaft and the third transfer shaft are respectively connected to the power input end of the hydraulic pump, the water pump and the air compressor, the first main drive shaft, the second main drive shaft, the third transfer shaft and the second transfer shaft are composed of a driving shaft and a driven shaft arranged opposite to each other on the left and right.

[0006] Preferably, a shell is provided between the first main drive shaft, the second main drive shaft, the third transfer shaft and the driving shaft and the driven shaft of the second transfer shaft, and a conductive slip ring and an electromagnetic clutch are provided inside the shell from left to right in sequence, and a temperature difference power generation structure for generating electricity by utilizing the working temperature of the electromagnetic clutch is provided on the outer wall of the shell, and a strong cooling structure for improving the power generation efficiency of the temperature difference power generation structure is provided between the lower wall of the shell and the mounting plate.

[0007] Preferably, a cooling structure for blowing air to dissipate heat inside the transfer case is provided between one end of the cooling box away from the transfer case and the transfer case, a generator is fixedly connected to the inner front wall of the cooling box, a power supply structure for storing and providing electricity is provided on the inner wall of the cooling box, and the temperature difference power generation structure and the generator are electrically connected to the power supply structure.

[0008] Preferably, the temperature difference power generation structure includes a temperature sensor and a temperature difference power generation chip, the temperature difference power generation chip is fixedly connected to the lower wall of the shell, the heat absorption surface of the temperature difference power generation chip is fixedly connected to the lower wall of the shell, and the temperature sensor is fixedly connected to the side wall of the shell.

[0009] Preferably, the strong cooling and cooling structure includes an air duct, a blowing pipe, an outer pipe, an inner pipe and a semiconductor refrigeration plate. The air duct is fixedly connected to the lower wall of the mounting plate, the outer pipe is fixedly connected to the circumferential outer wall of the air duct, and an end of the outer pipe away from the air duct passes through the side wall of the cooling box and is fixedly connected thereto. The end of the outer pipe facing the air duct passes through the outer wall of the air duct and is connected thereto. The semiconductor refrigeration plate is fixedly connected to the end of the outer pipe facing the air duct, the semiconductor refrigeration plate is fixedly connected to the side of the outer pipe facing the inside of the outer pipe, and the semiconductor refrigeration plate is fixedly connected to the heat sink on the side facing the inside of the outer pipe, and the semiconductor refrigeration plate is fixedly connected to the heat sink on the side away from the heat sink. The inner pipe is fixedly connected to the inner wall of the outer pipe through a supporting column and the inner pipe and the outer pipe are coaxially arranged, an air suction cavity is formed between the inner wall of the outer pipe and the circumferential outer wall of the inner pipe, a gap is provided between the end of the inner pipe facing the radiator and the radiator, a second cooling fan is fixedly connected to the inside of the inner pipe, the blowing pipe is fixedly connected to the upper wall of the mounting plate and is connected to the inside of the air duct, and the blowing pipe extends to the bottom of the shell at one end away from the mounting plate.

[0010] Preferably, the air blowing and heat dissipation structure includes a filter plate, a filter net, a support plate, two groups of air outlet nets and multiple groups of first cooling fans, the filter plate is fixedly connected to the lower wall of the cooling box, the filter net is arranged on the inner wall of the filter plate, the support plate is fixedly connected to the inner wall of the cooling box and is located above the filter plate, the multiple groups of first cooling fans are all arranged on the lower wall of the support plate, and the two groups of air outlet nets are respectively arranged on the front wall and the rear wall of the transfer case and are both located on the side close to the left wall of the transfer case.

[0011] Preferably, the power supply structure includes two groups of battery compartments and two groups of battery packs. The two groups of battery compartments are respectively fixedly connected to the inner front wall and the inner rear wall of the cooling box and are both located above the heat dissipation structure. The two groups of battery packs are respectively fixedly connected to the inner walls of the two groups of battery compartments through a group of fixing frames.

[0012] Preferably, the outer wall of the driven shaft of the first main transmission shaft, the outer wall of the driven shaft of the second main transmission shaft and the outer wall of the driving shaft of the first transfer shaft are all fixedly connected with gears, and the driven shaft of the first main transmission shaft and the driving shaft of the first transfer shaft, as well as the driven shaft of the second main transmission shaft and the driving shaft of the first transfer shaft are all transmitted through gear meshing.

[0013] Preferably, the driven shaft of the first transfer shaft and the driving shaft of the second transfer shaft are meshed and driven by a first synchronous belt and two sets of first synchronous wheels, and the driven shaft of the first transfer shaft and the driving shaft of the third transfer shaft are meshed and driven by a second synchronous belt and two sets of second synchronous wheels.

[0014] Preferably, the outer wall of the driven shaft of the first transfer shaft and the outer wall of the generator input shaft are meshed and driven by a third synchronous belt and two sets of third synchronous wheels.

[0015] (III) Beneficial effects The present invention provides a power output system for a kitchen garbage truck, which has the following beneficial effects: 1. Compared with the prior art, the power output system of the food garbage truck is provided with a first main transmission shaft and a second main transmission shaft, which can output the power of the fuel drive device and the electric drive device respectively. The output operation of the electric drive device has the advantage of low noise. When the power supply is insufficient, the fuel drive device can be temporarily used to keep the garbage cleaning work going, which greatly improves the reliability of the food garbage truck.

[0016] 2. Compared with the existing technology, the power output system of the food garbage truck is provided with a cooling box under the transfer case. An independent battery pack is arranged in the cooling box. When the first transfer shaft rotates, the generator is driven to generate electricity to charge the battery pack. At the same time, the temperature difference power generation chip absorbs the high temperature generated by the operation of the electromagnetic clutch to perform temperature difference power generation and then charge the battery pack, thereby supplying power to multiple groups of first cooling fans. After the first cooling fan is started, external air is sucked in from the filter screen and blown into the transfer case, so as to blow and dissipate heat inside the transfer case, effectively reducing energy consumption and improving the endurance of the electric drive device.

[0017] 3. Compared with the existing technology, the power output system of the food garbage truck is provided with an air duct on the lower wall of the mounting plate, and a blowing duct is provided between the air duct and the temperature difference power generation chip, so that part of the heat dissipation airflow generated by the first cooling fan can directly reach the lower wall of the temperature difference power generation chip from the air duct and the blowing duct. At the same time, a semiconductor refrigeration sheet is provided inside the air duct, which can force the heat dissipation airflow entering the air duct to cool down, thereby cooling down the lower wall of the temperature difference power generation chip, making the temperature difference between the upper and lower surfaces of the temperature difference power generation chip larger, thereby effectively improving the power generation efficiency.

[0018] 4. Compared with the prior art, the power output system of the food garbage truck has an outer tube that is connected to the outside arranged on the circumferential outer wall of the air duct, and an inner tube arranged inside the outer tube, and a second cooling fan arranged in the inner tube. The second cooling fan can absorb external air through the suction cavity formed between the outer wall of the inner tube and the inner wall of the outer tube to cool the radiator of the semiconductor refrigeration plate, thereby effectively improving the cooling effect of the semiconductor refrigeration plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 A partial enlarged view of the middle A; Figure 3 It is a partial cross-sectional view of the internal structure of the transfer case of the present invention; Figure 4 For the present invention Figure 3 A partial enlarged view of point B in the middle; Figure 5It is a partial sectional view of the side of the first main transmission shaft, the housing, the temperature sensor, the temperature difference power generation chip and the blowing pipe connection structure of the present invention; Figure 6 It is a partial cross-sectional view of the internal structure of the cooling box of the present invention; Figure 7 It is a partial cross-sectional view of the top view of the connection structure of the air guide pipe, the outer pipe, the inner pipe and the semiconductor refrigeration plate of the present invention; Figure 8 It is a partial cross-sectional view of the top view of the battery compartment and battery pack connection structure of the present invention.

[0020] Among them, 1. transfer case; 2. cooling box; 3. air outlet net; 4. filter plate; 5. filter net; 6. first main transmission shaft; 7. second main transmission shaft; 8. first transfer shaft; 9. second transfer shaft; 10. third transfer shaft; 11. gear; 12. hydraulic pump; 13. water pump; 14. air compressor; 15. first synchronous wheel; 16. first synchronous belt; 17. second synchronous wheel; 18. second synchronous belt; 19. third synchronous wheel; 20. The third synchronous belt; 21. Mounting plate; 22. Air hole; 23. Air blow pipe; 24. Outer pipe; 25. Inner pipe; 26. Shell; 27. Temperature sensor; 28. Temperature difference power generation chip; 29. ​​Air duct; 30. Generator; 31. Battery compartment; 32. Support plate; 33. First cooling fan; 34. Semiconductor cooling sheet; 35. Cooler; 36. Radiator; 37. Second cooling fan; 38. Fixing bracket; 39. Battery pack. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example:

[0023] like Figures 1 to 8As shown, an embodiment of the present invention provides a power output system for a kitchen garbage truck, including a garbage truck body and a fuel drive device, an electric drive device and a transfer case 1 arranged inside the garbage truck body. A cooling box 2 is fixedly connected to the lower wall of the transfer case 1 and near the right wall. The upper end of the cooling box 2 penetrates the lower wall of the transfer case 1 and passes through the inside of the transfer case 1. A mounting plate 21 is fixedly connected to the connection between the cooling box 2 and the transfer case 1. The inner wall of the mounting plate 21 is provided with a plurality of groups of air holes 22 that pass through from top to bottom. The lower wall of the inner side of the transfer case 1 is rotatably connected to the second main transmission shaft 7 and the first main transmission shaft 6 in a front-to-back distribution. The left ends of the second main transmission shaft 7 and the first main transmission shaft 6 both penetrate the left wall of the transfer case 1 and both extend to the left side of the transfer case 1. The first main transmission shaft 6 extends out to the left side of the transfer case 1, and one end of the second main transmission shaft 7 and the first main transmission shaft 6 extending out to the left side of the transfer case 1 is respectively connected to the output end of the fuel drive device and the electric drive device. The first transfer shaft 8 is rotatably connected to the lower wall of the inner side of the transfer case 1 and is located between the second main transmission shaft 7 and the first main transmission shaft 6. The third transfer shaft 10 and the second transfer shaft 9 are rotatably connected to the lower wall of the inner side of the transfer case 1 and are located at the right ends of the second main transmission shaft 7 and the first main transmission shaft 6. The upper wall of the mounting plate 21 is fixedly connected with an air compressor 14, a hydraulic pump 12 and a water pump 13 in sequence from front to back. The first transfer shaft 8, the second transfer shaft 9 and the right ends of the third transfer shaft 10 are respectively connected to the hydraulic pump 12, the water pump 13 and the air compressor 14, the hydraulic pump 12 and the water pump 13. The power input end of the press 14 is connected, the first main transmission shaft 6, the second main transmission shaft 7, the third transfer shaft 10 and the second transfer shaft 9 are composed of a driving shaft and a driven shaft arranged opposite to each other on the left and right, the outer wall of the driven shaft of the first main transmission shaft 6, the outer wall of the driven shaft of the second main transmission shaft 7 and the outer wall of the driving shaft of the first transfer shaft 8 are fixedly connected with a gear 11, the driven shaft of the first main transmission shaft 6 and the driving shaft of the first transfer shaft 8, the driven shaft of the second main transmission shaft 7 and the driving shaft of the first transfer shaft 8 are meshed and transmitted through the gear 11, the driven shaft of the first transfer shaft 8 and the driving shaft of the second transfer shaft 9 are meshed and transmitted through the first synchronous belt 16 and two sets of first synchronous wheels 15, the first The driven shaft of the transfer shaft 8 and the driving shaft of the third transfer shaft 10 are meshed and driven by the second synchronous belt 18 and two sets of second synchronous wheels 17. In this embodiment, the garbage truck body has the same structure as the existing food garbage trucks on the market. The fuel drive device is used to drive the garbage truck for long distances and to provide backup power output when the electric drive device is underpowered during garbage disposal operations. The electric drive device is the main power output during garbage disposal operations. The fuel drive device and the electric drive device are combined with the transfer case 1 in this embodiment to drive the hydraulic pump 12, the water pump 13 and the air compressor 14 separately or simultaneously through the fuel drive device and the electric drive device to complete the garbage disposal operation. In order to realize power switching and separate and simultaneous activation of multiple devices, a housing 26 is provided between the driving shaft and the driven shaft of the first main transmission shaft 6, the second main transmission shaft 7, the third transfer shaft 10 and the second transfer shaft 9. A conductive slip ring and an electromagnetic clutch are provided in the housing 26 from left to right. The electromagnetic clutch can enable the transfer case 1 to switch between the fuel drive device and the electric drive device, and between the hydraulic pump 12 being started alone and the hydraulic pump 12 and the water pump 13 and the air compressor 14 being started simultaneously. In order to utilize existing resources to generate electricity to offset part of the energy consumption when the air-blowing heat dissipation structure is used, a temperature difference power generation structure that utilizes the working temperature of the electromagnetic clutch to generate electricity is provided on the outer wall of the shell 26. The temperature difference power generation structure includes a temperature sensor 27 and a temperature difference power generation chip 28. The temperature difference power generation chip 28 is fixedly connected to the lower wall of the shell 26. The heat absorption surface of the temperature difference power generation chip 28 is fixedly connected to the lower wall of the shell 26. The temperature sensor 27 is fixedly connected to the side wall of the shell 26. When the electromagnetic clutch is operating, high temperature is generated. The heat absorption surface of the temperature difference power generation chip 28 contacts the shell 26 to absorb the high temperature, so that a large temperature difference is formed between the heat absorption surface and the other side of the temperature difference power generation chip 28, thereby generating electric energy at the output end of the temperature difference power generation chip 28. The temperature sensor 27 is used to detect the internal temperature of the shell 26. In order to improve the power generation efficiency of the temperature difference power generation chip 28, a strong cooling structure for improving the power generation efficiency of the temperature difference power generation structure is arranged between the lower wall of the shell 26 and the mounting plate 21. The strong cooling structure includes an air duct 29, an air blowing pipe 23, an outer tube 24, an inner tube 25 and a semiconductor refrigeration sheet 34. The air duct 29 is fixedly connected to the lower wall of the mounting plate 21, and the outer tube 24 is fixedly connected to the circumferential outer wall of the air duct 29. One end of the outer tube 24 away from the air duct 29 passes through the side wall of the cooling box 2 and is fixedly connected thereto. The outer tube 2 One end of the air guide duct 29 passes through the outer wall of the air guide duct 29 and is connected thereto. The semiconductor cooling sheet 34 is fixedly connected to the end of the outer tube 24 that faces the air guide duct 29. The side of the semiconductor cooling sheet 34 that faces the inside of the outer tube 24 is fixedly connected to a radiator 36. The side of the semiconductor cooling sheet 34 that is away from the radiator 36 is fixedly connected to a cooler 35. The inner tube 25 is fixedly connected to the inner wall of the outer tube 24 through a support column. The inner tube 25 and the outer tube 24 are coaxially arranged. The inner wall of the outer tube 24 and the circumferential outer wall of the inner tube 25 are connected to each other. A suction chamber is formed between the inner tube 25 and the end thereof facing the radiator 36, and a gap is provided between the end thereof facing the radiator 36. A second cooling fan 37 is fixedly connected inside the inner tube 25. The blowing pipe 23 is fixedly connected to the upper wall of the mounting plate 21 and is connected to the inside of the air duct 29. The end of the blowing pipe 23 away from the mounting plate 21 extends to the bottom of the shell 26. After the semiconductor refrigeration sheet 34 is energized, the temperature of the radiator 35 located on the refrigeration surface is rapidly reduced through its refrigeration characteristics, thereby cooling the inside of the air duct 29 through the radiator 35. When the first cooling fan 33 blows air, part of the heat dissipation airflow enters the inside of the air duct 29. The heat dissipation airflow is forced to cool down when passing through the radiator 35, and then blows toward the lower wall of the temperature difference power generation chip 28 through the blowing pipe 23, thereby forming a large temperature difference between the upper wall and the lower wall of the temperature difference power generation chip 28, which is beneficial to improving the power generation efficiency. In order to reduce the energy consumption of the semiconductor refrigeration sheet 34 during refrigeration, a common control device on the market can be used to control the activation time of the semiconductor refrigeration sheet 34. Shortening the power-on time can effectively save electricity.

[0024] In order to dissipate heat inside the transfer case 1, a blowing heat dissipation structure for blowing heat inside the transfer case 1 is arranged between the end of the cooling box 2 away from the transfer case 1 and the transfer case 1, and the blowing heat dissipation structure includes a filter plate 4, a filter screen 5, a support plate 32, two groups of air outlet screens 3 and multiple groups of first heat dissipation fans 33, the filter plate 4 is fixedly connected to the lower wall of the cooling box 2, the filter screen 5 is arranged on the inner side wall of the filter plate 4, the support plate 32 is fixedly connected to the inner side wall of the cooling box 2 and is located above the filter plate 4, and the multiple groups of first heat dissipation fans 33 are arranged on the inner side wall of the cooling box 2. A cooling fan 33 is arranged on the lower wall of the support plate 32, and two sets of air outlet nets 3 are respectively arranged on the front wall and the rear wall of the transfer case 1 and are both located on the side close to the left wall of the transfer case 1. After the first cooling fan 33 is started, it inhales external normal temperature air from the filter net 5 and blows it into the transfer case 1 from the multiple air holes 22 of the mounting plate 21, and performs air blowing and heat dissipation on the hydraulic pump 12, the water pump 13 and the air compressor 14. The heat dissipation airflow is finally discharged from the transfer case 1 along the air outlet net 3, and the air intake and outlet are continued to achieve the effect of air blowing and heat dissipation; In order to provide stable power supply, a generator 30 is fixedly connected to the inner front wall of the cooling box 2, and a power supply structure for storing and providing power is provided on the inner wall of the cooling box 2. The temperature difference power generation structure and the generator 30 are electrically connected to the power supply structure. The outer wall of the driven shaft of the first transfer shaft 8 and the outer wall of the input shaft of the generator 30 are meshed and transmitted through the third synchronous belt 20 and two sets of third synchronous wheels 19. The power supply structure includes two groups of battery compartments 31 and two groups of battery packs 39. The two groups of battery compartments 31 are respectively fixedly connected to the inner front wall and the inner rear wall of the cooling box 2 and are both located above the heat dissipation structure. The two groups of battery packs 39 are respectively fixedly connected to the inner walls of the two groups of battery compartments 31 through a group of fixing frames 38. The battery packs 39 are a supplement to the power supply part of the electric drive device, and are mainly used for powering the first cooling fan 33, the second cooling fan 37 and the semiconductor refrigeration plate 34. The battery packs 39 can be continuously charged by the generator 30 when the first transfer shaft 8 rotates.

[0025] Working principle: In this embodiment, the garbage truck body has the same structure as the existing kitchen garbage trucks on the market. The fuel drive device is used to drive the garbage truck for long distances and to provide backup power output when the electric drive device is underpowered during garbage disposal operations. The electric drive device is the main power output during garbage disposal operations. The fuel drive device and the electric drive device are combined with the transfer case 1 in this embodiment to drive the hydraulic pump 12, the water pump 13 and the air compressor 14 separately or simultaneously to complete the garbage disposal operation. The electromagnetic clutch is provided to enable the transfer case 1 to be driven by the fuel drive device and the electric drive device. The box 1 can switch between the fuel drive device and the electric drive device, and can switch between the hydraulic pump 12 starting alone and the hydraulic pump 12 and the water pump 13 and the air compressor 14 starting at the same time. When the electromagnetic clutch is working, high temperature will be generated, and the high temperature will be absorbed by the heat absorbing surface of the temperature difference power generation chip 28 contacting the shell 26, so that a large temperature difference is formed between the heat absorbing surface and the other side of the temperature difference power generation chip 28, thereby generating electric energy at the output end of the temperature difference power generation chip 28. The temperature sensor 27 is used to detect the internal temperature of the shell 26. After the semiconductor refrigeration sheet 34 is energized, the refrigeration characteristics of the semiconductor refrigeration sheet 34 will be used to cool the refrigeration surface. The temperature of the heat sink 35 drops rapidly, thereby cooling the inside of the air duct 29 through the heat sink 35. When the first cooling fan 33 blows, part of the heat dissipation airflow enters the inside of the air duct 29. The heat dissipation airflow is forced to cool down when passing through the heat sink 35, and then blows to the lower wall of the temperature difference power generation chip 28 through the air blowing pipe 23, so that a large temperature difference is formed between the upper wall and the lower wall of the temperature difference power generation chip 28, which is beneficial to improving the power generation efficiency. In order to reduce the energy consumption of the semiconductor cooling chip 34 during cooling, the common control equipment on the market can be used to control the activation time of the semiconductor cooling chip 34. Shortening the power-on time can effectively save energy. About electricity consumption, after the first cooling fan 33 is started, external room temperature air is sucked in from the filter 5, and blown into the transfer case 1 from the multiple air holes 22 of the mounting plate 21, so as to blow and dissipate heat for the hydraulic pump 12, the water pump 13 and the air compressor 14, and the cooling airflow is finally discharged from the transfer case 1 along the air outlet net 3, continuously taking in and out air, so as to achieve the cooling effect by blowing; the battery pack 39 is a supplement to the power supply part of the electric drive device, and is mainly used for powering the first cooling fan 33, the second cooling fan 37 and the semiconductor refrigeration sheet 34. The battery pack 39 can be continuously charged by the generator 30 when the first transfer shaft 8 rotates.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The power output system of the kitchen garbage truck is characterized by: The invention comprises a garbage truck body and a fuel drive device, an electric drive device and a transfer case (1) arranged inside the garbage truck body. A cooling box (2) is fixedly connected to the lower wall of the transfer case (1) and near the right wall. The upper end of the cooling box (2) penetrates the lower wall of the transfer case (1) and passes through the inside of the transfer case (1). A mounting plate (21) is fixedly connected to the connection between the cooling box (2) and the transfer case (1). The inner wall of the mounting plate (21) is provided with a plurality of groups of air holes (22) passing through from top to bottom. The lower wall of the inner side of the transfer case (1) is rotatably connected to a second main transmission shaft (7) and a first main transmission shaft (6) in a front-to-back distribution. The left ends of the second main transmission shaft (7) and the first main transmission shaft (6) penetrate the left wall of the transfer case (1) and extend to the left side of the transfer case (1). The ends of the second main transmission shaft (7) and the first main transmission shaft (6) extending to the left side of the transfer case (1) are respectively connected to the fuel drive shaft. The device is connected to the output end of the electric drive device, the first transfer shaft (8) is rotatably connected to the lower wall of the inner side of the transfer case (1) and is located between the second main transmission shaft (7) and the first main transmission shaft (6), the third transfer shaft (10) and the second transfer shaft (9) are rotatably connected to the lower wall of the inner side of the transfer case (1) and are located at the right ends of the second main transmission shaft (7) and the first main transmission shaft (6), respectively, the upper wall of the mounting plate (21) is fixedly connected to the air compressor (14), the hydraulic pump (12) and the water pump (13) in sequence from front to back, the right ends of the first transfer shaft (8), the second transfer shaft (9) and the third transfer shaft (10) are respectively connected to the power input end of the hydraulic pump (12), the water pump (13) and the air compressor (14), and the first main transmission shaft (6), the second main transmission shaft (7), the third transfer shaft (10) and the second transfer shaft (9) are all composed of a driving shaft and a driven shaft arranged opposite to each other on the left and right.

2. The power output system for a food garbage truck according to claim 1, characterized in that: A housing (26) is provided between the driving shaft and the driven shaft of the first main transmission shaft (6), the second main transmission shaft (7), the third transfer shaft (10) and the second transfer shaft (9); a conductive slip ring and an electromagnetic clutch are provided in sequence from left to right inside the housing (26); a temperature difference power generation structure for generating electricity using the working temperature of the electromagnetic clutch is provided on the outer wall of the housing (26); and a strong cooling structure for improving the power generation efficiency of the temperature difference power generation structure is provided between the lower wall of the housing (26) and the mounting plate (21).

3. The power output system for a food garbage truck according to claim 2, characterized in that: An air blowing and heat dissipation structure for blowing air to dissipate heat inside the transfer case (1) is provided between the end of the cooling box (2) away from the transfer case (1) and the transfer case (1); a generator (30) is fixedly connected to the inner front wall of the cooling box (2); a power supply structure for storing and providing electric power is provided on the inner wall of the cooling box (2); and the temperature difference power generation structure and the generator (30) are both electrically connected to the power supply structure.

4. The power output system for a food garbage truck according to claim 3, characterized in that: The temperature difference power generation structure comprises a temperature sensor (27) and a temperature difference power generation chip (28); the temperature difference power generation chip (28) is fixedly connected to the lower wall of the shell (26); the heat absorption surface of the temperature difference power generation chip (28) is fixedly connected to the lower wall of the shell (26); and the temperature sensor (27) is fixedly connected to the side wall of the shell (26).

5. The power output system for a food garbage truck according to claim 4, characterized in that: The strong cooling structure comprises an air duct (29), an air blowing pipe (23), an outer pipe (24), an inner pipe (25) and a semiconductor refrigeration sheet (34); the air duct (29) is fixedly connected to the lower wall of the mounting plate (21); the outer pipe (24) is fixedly connected to the circumferential outer wall of the air duct (29); one end of the outer pipe (24) away from the air duct (29) passes through the side wall of the cooling box (2) and is fixedly connected thereto; one end of the outer pipe (24) facing the air duct (29) passes through the outer wall of the air duct (29) and is in communication therewith; the semiconductor refrigeration sheet (34) is fixedly connected to one end of the outer pipe (24) facing the air duct (29); and the side of the semiconductor refrigeration sheet (34) facing the inside of the outer pipe (24) is fixedly connected to a radiator (3 6), a side of the semiconductor cooling plate (34) away from the radiator (36) is fixedly connected to a radiator (35), the inner tube (25) is fixedly connected to the inner wall of the outer tube (24) through a support column, and the inner tube (25) and the outer tube (24) are coaxially arranged, an air suction cavity is formed between the inner wall of the outer tube (24) and the circumferential outer wall of the inner tube (25), a gap is provided between the end of the inner tube (25) facing the radiator (36) and the radiator (36), a second cooling fan (37) is fixedly connected inside the inner tube (25), the blowing pipe (23) is fixedly connected to the upper wall of the mounting plate (21) and is connected to the inside of the air guide pipe (29), and the end of the blowing pipe (23) away from the mounting plate (21) extends to the bottom of the housing (26).

6. The power output system for a food garbage truck according to claim 5, characterized in that: The air blowing heat dissipation structure comprises a filter plate (4), a filter screen (5), a support plate (32), two groups of air outlet screens (3) and a plurality of groups of first heat dissipation fans (33); the filter plate (4) is fixedly connected to the lower wall of the cooling box (2); the filter screen (5) is arranged on the inner wall of the filter plate (4); the support plate (32) is fixedly connected to the inner wall of the cooling box (2) and is located above the filter plate (4); the plurality of groups of first heat dissipation fans (33) are all arranged on the lower wall of the support plate (32); and the two groups of air outlet screens (3) are respectively arranged on the front wall and the rear wall of the transfer case (1) and are both located on a side close to the left wall of the transfer case (1).

7. The power output system for a food garbage truck according to claim 6, characterized in that: The power supply structure comprises two groups of battery compartments (31) and two groups of battery packs (39); the two groups of battery compartments (31) are respectively fixedly connected to the inner front wall and the inner rear wall of the cooling box (2) and are both located above the heat dissipation structure; the two groups of battery packs (39) are respectively fixedly connected to the inner walls of the two groups of battery compartments (31) via a group of fixing frames (38).

8. The power output system for a food garbage truck according to claim 7, characterized in that: The outer wall of the driven shaft of the first main transmission shaft (6), the outer wall of the driven shaft of the second main transmission shaft (7) and the outer wall of the driving shaft of the first transfer shaft (8) are all fixedly connected with gears (11); the driven shaft of the first main transmission shaft (6) and the driving shaft of the first transfer shaft (8), as well as the driven shaft of the second main transmission shaft (7) and the driving shaft of the first transfer shaft (8) are all meshed and driven via the gears (11).

9. The power output system for a food garbage truck according to claim 8, characterized in that: The driven shaft of the first transfer shaft (8) and the driving shaft of the second transfer shaft (9) are meshed and driven via a first synchronous belt (16) and two sets of first synchronous wheels (15), and the driven shaft of the first transfer shaft (8) and the driving shaft of the third transfer shaft (10) are meshed and driven via a second synchronous belt (18) and two sets of second synchronous wheels (17).

10. The power output system for a food garbage truck according to claim 9, characterized in that: The outer wall of the driven shaft of the first transfer shaft (8) and the outer wall of the input shaft of the generator (30) are meshed and driven via a third synchronous belt (20) and two sets of third synchronous wheels (19).

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