New energy commercial refrigerator car

Abstract

The utility model relates to a new energy commercial refrigerator car, which relates to the technical field of new energy refrigerator cars, and comprises a car body, an inner machine assembly and an outer machine assembly, the inner machine assembly is arranged in a thermal insulation carriage of the car body, the outer machine assembly is arranged below a chassis of the car body through a support plate and is positioned behind a rear axle of the car body, and an electric control box is arranged on the car body. The indoor unit assembly and the outdoor unit assembly are connected through a refrigerant pipeline. The outdoor unit assembly is integrated on the supporting plate, the supporting plate is installed on the chassis of the vehicle body and located at the position behind the rear axle, the convenience of transportation, installation, disassembly and maintenance is improved, the windward side is large in the driving process, heat dissipation and air exhaust of the outdoor unit assembly are better facilitated, the installation position is farther than a cab, and therefore the generated noise influence is smaller, and the service life of the outdoor unit assembly is prolonged. And meanwhile, the wiring arrangement of refrigerant pipelines and wire harnesses is simplified, the convenience of material management and storage is improved, and therefore the convenience of installation and maintenance of the refrigeration outdoor unit of the new energy commercial refrigerator car is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy refrigerated vehicles, in particular to a new energy commercial refrigerated vehicle. Background Art

[0002] Refrigerated trucks are closed van transport vehicles used to transport frozen or fresh goods. They are special refrigerated transport vehicles equipped with a refrigeration unit and a polyurethane insulated compartment. They are commonly used to transport frozen foods (refrigerated trucks), dairy products (dairy transport trucks), vegetables and fruits (fresh goods transport trucks), vaccines and medicines, etc.

[0003] New energy commercial vehicles refer to all new energy cargo logistics vehicles and new energy buses with more than nine seats. In modern urban life, in order to promote the development of green urban distribution logistics industry, new energy commercial vehicles are widely used in logistics distribution. For fresh fruits and other items that require low-temperature storage and cold chain transportation, new energy commercial vehicles are generally converted into refrigerated trucks with refrigeration units, and the evaporator assembly, that is, the refrigeration internal unit, is installed in the insulation compartment of the vehicle body. There are usually two ways to install the refrigeration external unit assembly. The first is to integrate the refrigeration external unit assembly into one and set it on the roof of the refrigeration truck, such as Shanghai Datong refrigerated bread truck and Jinbei refrigerated bread truck. The second is to disassemble the refrigeration external unit assembly and install it in pieces under the chassis of the vehicle body.

[0004] However, the first method will increase the height of the vehicle, limit the passing rate in and out of the freezer, and the external unit is close to the cab, which generates large noise and vibration. The second method causes the materials to be dispersed and unfavorable for management. In addition, the complex layout of pipelines and high and low voltage lines under the chassis of new energy vehicles brings difficulties to the installation of the external unit, thus reducing the convenience of installation and maintenance of the refrigeration external unit of new energy commercial refrigerated trucks. Utility Model Content

[0005] In order to improve the convenience of installation and maintenance of a refrigeration external unit of a new energy commercial refrigerated truck, the utility model provides a new energy commercial refrigerated truck.

[0006] This application provides a new energy commercial refrigerated truck, which adopts the following technical solution:

[0007] A new energy commercial refrigerated truck comprises a vehicle body, an inner unit assembly and an outer unit assembly, wherein the inner unit assembly is arranged in an insulation compartment of the vehicle body, and the outer unit assembly is arranged below the chassis of the vehicle body through a support plate and is located behind the rear wheel axle of the vehicle body. An electric control box is arranged on the vehicle body, and the electric control box controls the operation of the inner unit assembly and the outer unit assembly through a controller, and the inner unit assembly and the outer unit assembly are connected through a refrigerant pipeline.

[0008] By adopting the above technical solution, the external unit assembly is integrated on the support plate, and the support plate is installed on the chassis of the vehicle body and located behind the rear wheel axle, which improves the convenience of transportation, installation, disassembly and maintenance, and the large windward surface during driving is more conducive to the heat dissipation and exhaust of the external unit assembly. The installation position of the external unit assembly is farther than the cab, so the noise impact is smaller than that of installing it in other places. The electronic control box can control the operation of the internal unit assembly and the external unit assembly through the controller, which simplifies the wiring layout of the refrigerant pipeline and the wiring harness, thereby improving the convenience of material management and storage, thereby improving the convenience of installation and maintenance of the refrigeration external unit of the new energy commercial refrigerated truck.

[0009] Optionally, the external unit assembly includes a compressor, a condenser and an expansion valve which are arranged in sequence on a support plate, the condenser is provided with an electronic fan, and both ends of the support plate are provided with side panels extending upward, and the top end of the side panel is detachably connected to the chassis of the vehicle body.

[0010] By adopting the above technical solution, the compressor, condenser, expansion valve and electronic fan are integrated on the support plate. During installation, each component is first installed on the support plate, and then the support plate is installed on the vehicle chassis through two side panels, thereby improving the convenience of installation and maintenance of the refrigeration external unit of the new energy commercial refrigerated truck. At the same time, the side panel can also protect the components installed on the support plate, isolate the mud and sand during the driving of the rear tires, thereby reducing the probability of damage to the condenser caused by flying mud, flying soil and flying stones generated by the rear tires during driving.

[0011] Optionally, the indoor unit assembly includes an evaporator, and the refrigerant pipeline connects the evaporator, compressor, condenser and expansion valve in series to form a cooling circuit.

[0012] By adopting the above technical solution, the refrigerant pipeline connects the indoor unit assembly and the outdoor unit assembly. By integrating the compressor, condenser and expansion valve on the support plate, the wiring layout of the refrigerant pipeline is simplified and the convenience of installation and maintenance of the refrigerant pipeline is improved.

[0013] Optionally, an air inlet mesh plate is provided on a side of the support plate close to the rear wheel axle of the vehicle body; and the condenser is tiltedly arranged on a side of the support plate away from the rear wheel axle.

[0014] By adopting the above technical solution, when the vehicle is driving, the air inlet mesh plate can prevent damage and dust accumulation caused by flying stones, leaves or cloth paper during driving, which may affect the heat dissipation of the condenser, thereby improving the working effect of the condenser.

[0015] Optionally, the height of the air inlet mesh plate is smaller than the height of the side plate.

[0016] By adopting the above technical solution, the height of the air inlet mesh plate is smaller than the side plate, thereby improving the convenience of flushing during regular cleaning and maintenance of the outdoor unit assembly.

[0017] Optionally, the support plate has a plurality of drainage holes.

[0018] By adopting the above technical solution, the drainage holes improve the convenience of drainage of the support plate and reduce the probability of water accumulation on the support plate.

[0019] Optionally, the side panel has a plurality of functional holes.

[0020] By adopting the above technical solution, the wiring harness and the pipeline are connected through multiple functional holes, which improves the convenience of arranging the wiring harness and the pipeline.

[0021] Optionally, the compressor is an integrated aluminum shell scroll compressor with electronic control.

[0022] By adopting the above technical solution, the integrated aluminum shell scroll compressor with electronic control is lighter than the iron shell compressor, while meeting the requirements of the air temperature in the insulation compartment and being easier to lift and place.

[0023] Optionally, a pipe cover is provided on the outer side wall of the front partition wall of the insulation compartment, the refrigerant pipeline is passed through the pipe cover, and the control pipeline for connecting the indoor unit assembly, the outdoor unit assembly and the control box is also provided in the pipe cover.

[0024] By adopting the above technical solution, the pipe cover protects the refrigerant pipeline and the control pipeline, and at the same time, the pipe cover is arranged on the outer wall of the front partition wall of the insulation compartment without affecting the cargo loading space inside the insulation compartment.

[0025] In summary, the present application includes at least one of the following beneficial technical effects:

[0026] 1. The external unit assembly is integrated on the support plate, and the support plate is installed on the chassis of the vehicle and located behind the rear axle, which improves the convenience of transportation, installation, disassembly and maintenance. In addition, the large windward surface during driving is more conducive to the heat dissipation and exhaust of the external unit assembly. The installation position of the external unit assembly is farther from the cab, so the noise impact is smaller than that of installing it in other places. The electronic control box can control the work of the internal unit assembly and the external unit assembly through the controller, which simplifies the wiring layout of the refrigerant pipeline and the wiring harness, thereby improving the convenience of material management and storage, thereby improving the convenience of installation and maintenance of the refrigeration external unit of the new energy commercial refrigerated truck.

[0027] 2. The side panels protect the components installed on the support plate and isolate the mud and sand generated by the rear tires during driving, thereby reducing the probability of damage to the condenser caused by flying mud, flying soil and flying stones generated by the rear tires during driving. At the same time, the air inlet mesh plate can prevent the damage and dust accumulation caused by flying stones, leaves or cloth paper during driving, which will affect the heat dissipation of the condenser, thereby improving the working effect of the condenser.

[0028] 3. By arranging the pipe cover on the outer side wall of the front partition wall of the insulation compartment, the routing of the refrigerant pipeline and the control pipeline does not affect the cargo loading space inside the insulation compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of this application;

[0030] Figure 2 It is a schematic diagram of the installation position of the external machine assembly in this application;

[0031] Figure 3 is a partial cross-sectional view of the vehicle body in the present application;

[0032] Figure 4 is a bottom view of the vehicle body in this application;

[0033] Figure 5 It is a schematic diagram of the overall structure of the external machine assembly in this application;

[0034] Figure 6 It is a schematic diagram of the location of the drainage holes in this application.

[0035] Figure numerals: 1. Vehicle body; 11. Chassis; 111. Power battery; 12. Front of vehicle; 13. Insulated compartment; 131. Pipe cover; 14. Front axle; 15. Rear axle; 16. Electronic control box; 17. Refrigerant pipeline; 2. Inner unit assembly; 21. Evaporator; 3. External unit assembly; 31. Compressor; 32. Condenser; 4. Support plate; 41. Side plate; 411. Mounting hole; 42. Air inlet mesh plate; 43. Drain hole; 5. Function hole; 51. Low-pressure pipe interface hole; 52. High-pressure pipe interface hole; 53. Defrost pipe interface hole; 54. Wiring harness through hole; 55. Filling grab hole. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-6 This application is described in further detail.

[0037] The embodiment of the present application discloses a new energy commercial refrigerated truck.

[0038] Reference Figure 1 , Figure 2 and Figure 3A new energy commercial refrigerated truck includes a vehicle body 1, an interior unit assembly 2 and an exterior unit assembly 3. The vehicle body 1 includes a chassis 11, a front end 12 and an insulation compartment 13. Other necessary components of the vehicle body 1 are not listed here one by one. A front axle 14 and a rear axle 15 are rotatably provided on the chassis 11. A power battery 111 for power supply is also provided on the chassis 11. The interior unit assembly 2 is arranged in the insulation compartment 13 of the vehicle body 1. The exterior unit assembly 3 is arranged below the chassis 11 of the vehicle body 1 through a support plate 4 and is located behind the rear axle 15 of the vehicle body 1. An electric control box 16 is provided on the vehicle body 1. The electric control box 16 controls the operation of the interior unit assembly 2 and the exterior unit assembly 3 through a controller (not shown in the figure). The interior unit assembly 2 and the exterior unit assembly 3 are connected through a refrigerant pipeline 17.

[0039] Reference Figure 3 , Figure 4 and Figure 5 The indoor unit assembly 2 includes an evaporator 21, and the outdoor unit assembly 3 includes a compressor 31, a condenser 32 and an expansion valve which are fixedly mounted on the support plate 4 in sequence. In this embodiment, the compressor 31 adopts an integrated aluminum shell scroll compressor with electronic control. The condenser 32 is tilted and arranged on the side of the support plate 4 away from the rear wheel shaft 15. An electronic fan is integrated on the condenser 32. The refrigerant pipeline 17 connects the evaporator 21, the compressor 31, the condenser 32 and the expansion valve in series to form a cooling circuit. The electric control box 16 is connected to the indoor unit assembly 2 and the outdoor unit assembly 3 through the control pipeline and controls the operation of the indoor unit assembly 2 and the outdoor unit assembly 3 through the controller.

[0040] Reference Figure 2 , Figure 4 and Figure 5 Both ends of the support plate 4 are fixed with side plates 41 extending upward, and the top ends of the two side plates 41 are provided with mounting holes 411 for mounting bolts. During installation, the side plates 41 are detachably connected to the chassis 11 of the vehicle body 1 through bolts.

[0041] Reference Figure 2 , Figure 4 and Figure 6 An air inlet mesh plate 42 is provided on one side of the support plate 4 close to the rear wheel axle 15 of the vehicle body 1. The height of the air inlet mesh plate 42 is less than the height of the side plate 41. A plurality of drainage holes 43 are provided at the bottom of the support plate 4, and a plurality of functional holes 5 are provided on one of the side plates 41.

[0042] Reference Figure 4 , Figure 5 and Figure 6In this embodiment, the functional hole 5 includes a low-pressure pipe interface hole 51, a high-pressure pipe interface hole 52, a defrost pipe interface hole 53, a harness through hole 54 and a filling grab hole 55. The refrigerant pipeline 17 is connected to the corresponding components through the low-pressure pipe interface hole 51, the high-pressure pipe interface hole 52, and the defrost pipe interface hole 53. The harness through hole 54 is used for the wiring arrangement of the harness, and its size is designed according to the volume of the control harness of the external unit assembly 3. The filling grab hole 55 is connected to the high-pressure filling valve body to detect the refrigerant pressure, etc., and its size is designed according to the volume of the refrigerant filling grab.

[0043] Reference Figure 2 and Figure 3 A pipe cover 131 is provided on the outer side wall of the front partition wall of the insulation compartment 13, and a pipe cover 131 is also provided under the chassis 11 of the vehicle body 1. The refrigerant pipeline 17 is passed through the pipe cover 131, and the control pipeline for connecting the indoor unit assembly 2, the outdoor unit assembly 3 and the control box is also provided in the pipe cover 131. The goods in the insulation compartment 13 can be placed close to the inner surface of the front partition wall of the insulation compartment 13, thereby increasing the cargo loading space in the insulation compartment 13; in other embodiments, when the volume of the cargo is small, the pipe cover 131 can also be provided on the inner surface of the insulation compartment 13 to reduce the supercooling degree of the refrigerant in the inlet pipe of the expansion valve.

[0044] Reference Figure 3 , Figure 5 and Figure 6 The external unit assembly 3 is integrated on the support plate 4, and the support plate 4 is installed on the chassis 11 of the vehicle body 1 and is located behind the rear wheel axle 15, which improves the convenience of transportation, installation, disassembly and maintenance, and the large windward surface during driving is more conducive to the heat dissipation and exhaust of the external unit assembly 3. The installation position of the external unit assembly 3 is farther from the cab, so the noise impact is smaller than that of installing it in other places. The electronic control box 16 can control the work of the internal unit assembly 2 and the external unit assembly 3 through the controller, which simplifies the wiring layout of the refrigerant pipeline 17 and the wiring harness, thereby improving the convenience of material management and storage, thereby improving the convenience of installation and maintenance of the refrigeration external unit of the new energy commercial refrigerated truck.

[0045] Reference Figure 4 , Figure 5 and Figure 6 The side panels 41 and the air inlet mesh panels 42 protect the components installed on the support plate 4, isolating the mud and sand generated by the rear tires during driving, thereby reducing the probability of damage to the condenser 32 caused by flying mud, flying soil and flying stones generated by the rear tires during driving, and preventing damage and dust accumulation caused by flying stones, leaves or cloth paper generated during driving, which affects the heat dissipation of the condenser 32, thereby improving the working effect of the condenser 32.

[0046] The working principle of the embodiment of the present application is as follows:

[0047] The external unit assembly 3 is integrated on the support plate 4, and the support plate 4 is installed on the chassis 11 of the vehicle body 1 and is located behind the rear wheel axle 15, which improves the convenience of transportation, installation, disassembly and maintenance, and the large windward surface is more conducive to the heat dissipation and exhaust of the external unit assembly 3 during driving. The installation position of the external unit assembly 3 is farther from the cab, so the noise impact is smaller than that of installing it in other places. The electric control box 16 can control the operation of the internal unit assembly 2 and the external unit assembly 3 through the controller, which simplifies the wiring layout of the refrigerant pipeline 17 and the wiring harness, thereby improving the convenience of material management and storage, thereby improving the convenience of installation and maintenance of the refrigeration external unit of the new energy commercial refrigerated truck.

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

Claims

1. A new energy commercial refrigerated truck, characterized by: The invention comprises a vehicle body (1), an indoor unit assembly (2) and an outdoor unit assembly (3), wherein the indoor unit assembly (2) is arranged in an insulation compartment (13) of the vehicle body (1), and the outdoor unit assembly (3) is arranged below a chassis (11) of the vehicle body (1) through a support plate (4) and is located behind a rear wheel axle (15) of the vehicle body (1). An electric control box (16) is arranged on the vehicle body (1), and the electric control box (16) controls the operation of the indoor unit assembly (2) and the outdoor unit assembly (3) through a controller. The indoor unit assembly (2) and the outdoor unit assembly (3) are connected via a refrigerant pipeline (17).

2. A new energy commercial refrigerated vehicle according to claim 1, characterized in that: The external unit assembly (3) comprises a compressor (31), a condenser (32) and an expansion valve which are arranged on a support plate (4) in sequence; an electronic fan is arranged on the condenser (32); both ends of the support plate (4) are provided with side plates (41) extending upward; the top end of the side plates (41) is detachably connected to a chassis (11) of a vehicle body (1).

3. A new energy commercial refrigerated vehicle according to claim 2, characterized in that: The internal unit assembly (2) includes an evaporator (21), and the refrigerant pipeline (17) connects the evaporator (21), the compressor (31), the condenser (32) and the expansion valve in series to form a cooling circuit.

4. A new energy commercial refrigerated vehicle according to claim 3, characterized in that: An air inlet mesh plate (42) is provided on a side of the support plate (4) close to the rear wheel axle (15) of the vehicle body (1); and the condenser (32) is arranged obliquely on a side of the support plate (4) away from the rear wheel axle (15).

5. A new energy commercial refrigerated vehicle according to claim 4, characterized in that: The height of the air inlet mesh plate (42) is smaller than the height of the side plate (41).

6. A new energy commercial refrigerated vehicle according to claim 2, characterized in that: The support plate (4) is provided with a plurality of drainage holes (43).

7. A new energy commercial refrigerated vehicle according to claim 2, characterized in that: The side plate (41) is provided with a plurality of functional holes (5).

8. A new energy commercial refrigerated vehicle according to claim 2, characterized in that: The compressor (31) is an integrated aluminum shell scroll compressor with electronic control.

9. A new energy commercial refrigerated vehicle according to claim 1, characterized in that: A pipe cover (131) is provided on the outer side wall of the front partition wall of the heat preservation compartment (13), the refrigerant pipeline (17) is passed through the pipe cover (131), and the control pipeline for connecting the indoor unit assembly (2), the outdoor unit assembly (3) and the control box is also provided in the pipe cover (131).

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