Refrigerating outdoor unit and refrigerating system of new energy commercial refrigerator car

Abstract

The utility model relates to a new energy commercial refrigerator car refrigeration outdoor unit and refrigeration system, and relates to the technical field of new energy refrigerator cars, the new energy commercial refrigerator car refrigeration outdoor unit comprises a compressor, a condenser and a fan which are integrated on a mounting bracket, and the mounting bracket is arranged below a chassis of a car body through a connecting assembly. The compressor, the condenser and the fan are integrated on the mounting bracket, and the mounting bracket is integrally arranged below the chassis of the vehicle body, so that for the refrigerator vehicle adopting an overhead refrigerating unit, the noise is lower, and meanwhile, the refrigerating outdoor unit is integrated together, so that the probability of inconvenience in transportation management, maintenance and detection caused by scattered mounting and arrangement of parts is reduced; therefore, the convenience of installation, management and maintenance of the refrigerating unit of the new energy refitted refrigerator car is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy refrigeration truck technical field especially is related to a new energy commercial refrigeration truck refrigeration external unit and refrigerating system. BACKGROUND

[0002] The refrigeration truck is the refrigeration device and the cold -insulated compartment of refrigeration special transport vehicle that is equipped with the refrigeration unit, is often used for transporting frozen food (freezing car), dairy products (milk product transport vehicle), vegetables and fruits (fresh goods transport vehicle), vaccine medicine (vaccine transport vehicle) etc.

[0003] The refrigeration truck air conditioning system reduces the temperature in the compartment through the refrigeration unit, and the refrigeration device is mainly composed of compressor, condenser assembly, evaporator assembly three major components and the connecting pipeline between three major components. Compressor compresses the low-temperature low-pressure refrigerant gas into high-temperature high-pressure gas and then delivers it to condenser assembly. Condenser assembly releases heat to air to condense into high-pressure medium-temperature liquid, which flows to expansion valve. Expansion valve reduces the pressure of liquid refrigerant to become low-pressure low-temperature gas-liquid mixture, which enters evaporator. Low-pressure low-temperature gas-liquid mixture evaporates in evaporator assembly, absorbing heat from air, thereby reducing temperature.

[0004] In the existing market, the refrigeration unit of the refrigeration truck modified from the Geely remote and the Dongfeng wind series of new energy vehicle models is often designed as a top-mounted type, which may cause problems such as high noise and poor appearance. On the contrary, if the cold machine parts are installed and arranged dispersedly under the chassis, it is not only messy but also inconvenient for storage, transportation management and maintenance of too many parts, and it may also cause a decline in assembly quality. INVENTION CONTENTS

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

[0006] The first aspect of the present application provides a new energy commercial refrigeration truck refrigeration external unit, which adopts the following technical scheme:

[0007] A new energy commercial refrigeration truck refrigeration external unit, comprising a compressor, a condenser and a fan integrated on a mounting bracket, and the mounting bracket is arranged below the chassis of the vehicle body through a connecting assembly.

[0008] By adopting the above technical scheme, the compressor, the condenser and the fan are integrated on the mounting bracket, and the mounting bracket is arranged below the chassis of the vehicle body. For the refrigeration truck with top-mounted refrigeration unit, the noise is smaller, and the refrigeration external unit is integrated together, which reduces the probability of inconvenient transportation management and maintenance caused by dispersed installation and arrangement of parts, thereby improving the convenience of installation, management and maintenance of the refrigeration unit of the new energy modified refrigeration truck.

[0009] Optionally, the connecting assembly comprises a first connecting bracket and a second connecting bracket, the first connecting bracket is arranged at the front end of the mounting bracket and between the compressor and the condenser and extends vertically upward, the second connecting bracket is arranged at the rear end of the mounting bracket and behind the condenser and the fan and extends vertically upward, and the top ends of the first connecting bracket and the second connecting bracket are detachably connected with the beam below the chassis of the vehicle body.

[0010] By adopting the above technical scheme, when installing, the parts of the refrigeration outdoor unit are first installed on the mounting bracket, and then the top ends of the first connecting bracket and the second connecting bracket are installed on the beam below the chassis of the vehicle body, so that the installation of the refrigeration outdoor unit is realized, thereby improving the convenience of installation and maintenance of the refrigeration outdoor unit. The first connecting bracket and the second connecting bracket are located at the two ends of the mounting bracket and cooperate to support the mounting bracket, thereby improving the stability of the mounting bracket.

[0011] Optionally, the first connecting bracket is provided with a wiring port through which the pipeline and the wire harness pass.

[0012] By adopting the above technical scheme, the pipeline and the wire harness pass through the wiring port, thereby reducing the probability of disordered wiring of the pipeline and the wire harness on the mounting bracket, and thereby improving the convenience of installation and subsequent maintenance.

[0013] Optionally, the top end of the second connecting bracket is folded forward to form a connecting surface, and the connecting surface is detachably connected with the beam below the chassis of the vehicle body.

[0014] By adopting the above technical scheme, the connecting surface increases the contact area between the second connecting bracket and the chassis of the vehicle body, thereby improving the supporting force of the second connecting bracket, and thereby improving the stability of the mounting bracket.

[0015] Optionally, the bottom surface of the mounting bracket is provided with a protection plate, and a plurality of drainage holes are arranged on the protection plate below the compressor.

[0016] By adopting the above technical scheme, the protection plate protects the parts installed on the mounting bracket, reduces the probability of damage to the parts caused by splashing mud and flying stones on the ground, and simultaneously the drainage holes drain away the accumulated water in the protection plate, thereby reducing the probability of damage to the parts caused by accumulated water on the mounting bracket.

[0017] Optionally, the mounting bracket is further provided with a wind collecting cover, the condenser and the fan are integrated on the wind collecting cover, the protection plate below the wind collecting cover has a mounting port, a plurality of wind deflectors are sequentially arranged in the mounting port, and the wind deflectors extend obliquely backward and downward.

[0018] By adopting the technical scheme, the condenser and the fan are integrally installed, the structure is simple, and the whole installation, disassembly and maintenance are facilitated.

[0019] The second aspect of the present application provides a new energy commercial refrigeration truck refrigeration system, comprising the refrigeration outdoor unit of any one of the preceding aspects, further comprising an indoor unit assembly, a refrigerant pipeline and a power supply module, the indoor unit assembly is arranged in the insulated compartment of the vehicle body, the refrigerant pipeline connects the refrigeration outdoor unit and the indoor unit assembly to form a cooling circuit, the power supply module is arranged below the chassis of the vehicle body and is used for providing power supply for the operation of the refrigeration outdoor unit and the indoor unit assembly, and the refrigeration outdoor unit is located at the side of the power supply module.

[0020] By adopting the technical scheme, the refrigeration outdoor unit is integrally installed at the side of the power supply module, which is suitable for the narrow space below the vehicle chassis and occupies the rear space with the spare tire at the rear wheel position, and the refrigeration outdoor unit is convenient to store, manage, manufacture, package, transport, install and maintain, so as to meet the refrigeration layout installation needs.

[0021] Optionally, a first wiring hole is formed in the inner wall of the insulated compartment and is communicated with the cab of the vehicle body, a second wiring hole is formed in the inner bottom wall of the cab, and the wire harness and the refrigerant pipeline connected with the indoor unit assembly are connected with the refrigeration outdoor unit after passing through the first wiring hole and the second wiring hole.

[0022] By adopting the technical scheme, the refrigerant pipeline and the wire harness are routed and arranged through the first wiring hole and the second wiring hole, the neatness of the overall pipeline arrangement of the refrigeration system is improved, and the installation and later maintenance are facilitated.

[0023] Optionally, a pipe cover is arranged on the inner wall of the insulated compartment close to the cab of the vehicle body, the first wiring hole is located below the bottom end of the pipe cover, and the refrigerant pipeline and the wire harness located in the insulated compartment are arranged in the pipe cover.

[0024] By adopting the technical scheme, the pipe cover protects the refrigerant pipeline and the wire harness in the insulated compartment, reduces the probability of damage of the pipeline and the wire harness caused by goods in the insulated compartment, and prolongs the service life of the refrigerant pipeline and the wire harness.

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

[0026] 1. The compressor, the condenser and the fan are integrated on the mounting bracket, and the mounting bracket is integrally arranged below the chassis of the vehicle body. For the refrigeration truck using the top-mounted refrigeration unit, the noise is smaller, and the refrigeration outdoor unit is integrally arranged, which reduces the probability of inconvenient transportation management and maintenance caused by the dispersion of parts, thereby improving the convenience of installation, management and maintenance of the new energy modified refrigeration truck refrigeration unit.

[0027] 2. The protection plate protects the components installed on the mounting bracket, reduces the probability of damage to the components caused by mud and flying stones splashing on the ground, and the drainage hole drains the accumulated water in the protection plate, reducing the probability of damage to the components caused by accumulated water on the mounting bracket. The plurality of wind deflectors guide the incoming wind, causing the discharged wind to be discharged to the rear of the vehicle, thereby improving the heat dissipation effect of the condenser.

[0028] 3. For the narrow position space under the vehicle chassis, and in the case of a spare tire occupying the rear space at the rear wheel position, the refrigeration outdoor unit is installed on the side of the power supply module. It is good for heat dissipation and convenient for storage management, convenient for production and manufacturing packaging and transportation, and convenient for installation and maintenance, so as to meet the installation needs of refrigeration layout. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a bottom view of the vehicle body of the refrigerated truck in the embodiment of the present application;

[0030] Figure 2 is a sectional view of the vehicle body of the refrigerated truck in the embodiment of the present application;

[0031] Figure 3 is a structural schematic diagram of the refrigeration outdoor unit in the embodiment of the present application;

[0032] Figure 4 is a structural schematic diagram of the connection assembly in the embodiment of the present application;

[0033] Figure 5 is a structural schematic diagram of the protection plate in the embodiment of the present application.

[0034] The drawings show that: 1, vehicle body; 11, cab; 111, second wiring hole; 12, thermal insulation compartment; 121, first wiring hole; 122, pipe cover; 13, front wheel; 14, rear wheel; 15, cold machine power DCDC; 16, cold machine controller; 2, mounting bracket; 21, compressor; 22, condenser; 23, fan; 24, air collector; 3, connection assembly; 31, first connection bracket; 311, wiring port; 32, second connection bracket; 321, connection surface; 4, protection plate; 41, drainage hole; 42, mounting port; 43, wind deflector; 5, indoor unit assembly; 6, refrigerant pipeline; 7, power supply module. DETAILED DESCRIPTION

[0035] The following will be described in detail in combination with the drawings Figures 1-5 The present application is further described in detail.

[0036] The embodiment of the present application discloses a new energy commercial refrigerated truck refrigeration outdoor unit and refrigeration system.

[0037] Reference Figure 1 and Figure 2The new energy commercial refrigeration truck in the embodiment of the application is a refrigeration truck modified from a Geely remote and Dongfeng Gucheng series new energy vehicle, comprising a vehicle body 1, a cab 11 and a heat preservation compartment 12 are arranged on the vehicle body 1, and front wheels 13 and rear wheels 14 are rotatably arranged on both sides of the vehicle body 1.

[0038] With reference to Figure 2 and Figure 3 A new energy commercial refrigeration truck refrigeration unit, comprising a compressor 21, a condenser 22 and a fan 23 integrated on a mounting bracket 2, the mounting bracket 2 is arranged below the chassis of the vehicle body 1 and between the front wheels 13 and the rear wheels 14 through a connecting assembly 3.

[0039] With reference to Figure 2 , Figure 3 and Figure 4 The mounting bracket 2 extends horizontally, and a wind collecting cover 24 is further arranged on the mounting bracket 2, the condenser 22 and the fan 23 are integrated on the wind collecting cover 24, the fan 23 is arranged on the upper end of the wind collecting cover 24, and the condenser 22 is arranged on the lower end of the wind collecting cover 24, so that the air inlet can only pass through the axial direction of the fan 23 and then be discharged to the rear of the condenser 22.

[0040] With reference to Figure 2 , Figure 3 and Figure 4 The connecting assembly 3 comprises a first connecting bracket 31 and a second connecting bracket 32, for the convenience of description, the following description is made with the cab 11 as the front end and the rear end away from the cab 11, the first connecting bracket 31 is fixedly arranged on the front end of the mounting bracket 2 and extends upward and is located between the compressor 21 and the condenser 22, the top end of the first connecting bracket 31 is detachably connected to the beam below the chassis of the vehicle body 1 through bolts, and the bottom end of the first connecting bracket 31 is provided with a wiring port 311 for the pipe and the wire harness to pass through.

[0041] With reference to Figure 2 , Figure 3 and Figure 4 The second connecting bracket 32 is fixedly arranged on the outer side wall of the rear end of the mounting bracket 2 and vertically extends upward, the top end of the second connecting bracket 32 is folded forward to form a connecting surface 321, the connecting surface 321 is detachably connected to the beam below the chassis of the vehicle body 1, and the mounting bracket 2 is further integrated with an oil-gas separator, a drying bottle and an electromagnetic valve and other commonly used parts of the refrigeration unit.

[0042] With reference to Figure 3 , Figure 4 and Figure 5The bottom surface of the mounting bracket 2 is provided with a protection plate 4, a plurality of drainage holes 41 are formed in the protection plate 4 below the compressor 21, the protection plate 4 below the air collector 24 has a mounting port 42, a plurality of air deflectors 43 are sequentially arranged in the mounting port 42, the air deflectors 43 extend obliquely backward and downward, that is, the air deflection direction of the air deflectors 43 is backward, so that the wind discharged from the core of the condenser 22 is discharged to the rear of the vehicle through the fan 23.

[0043] With reference to Figure 1 and Figure 2 A new energy commercial refrigeration truck refrigeration system, comprising the above refrigeration outdoor unit, further comprising an indoor unit assembly 5, a refrigerant pipeline 6 and a power supply module 7, the indoor unit assembly 5 is an evaporator, which is arranged in the thermal compartment 12 of the vehicle body 1, and the refrigerant pipeline 6 connects the refrigeration outdoor unit and the indoor unit assembly 5 to form a cooling circuit.

[0044] With reference to Figure 1 and Figure 2 A first wiring hole 121 is formed in the inner wall of the thermal compartment 12 and is in communication with the cab 11 of the vehicle body 1, a second wiring hole 111 is formed in the inner bottom wall of the cab 11, the second wiring hole 111 is located below the seat of the cab 11, the wire harness connected with the indoor unit assembly 5 and the refrigerant pipeline 6 are connected with the refrigeration outdoor unit after passing through the first wiring hole 121 and the second wiring hole 111, a pipe cover 122 is arranged on the inner wall of the thermal compartment 12 close to the cab 11, the first wiring hole 121 is located below the bottom end of the pipe cover 122, and the refrigerant pipeline 6 and the wire harness located in the thermal compartment 12 are arranged in the pipe cover 122.

[0045] With reference to Figure 1 , Figure 2 and Figure 3 The refrigerant pipeline 6 includes a condenser inflow pipe, a compressor discharge pipe, a compressor suction pipe, an evaporator outflow pipe, a drier inflow pipe, a drier outflow pipe, an evaporator inflow pipe, a solenoid valve inflow pipe, a solenoid valve outflow pipe, an oil return pipe and other common pipelines in the automobile air conditioning refrigeration system.

[0046] One end of the condenser inflow pipe is connected with the condenser 22 inlet, the other end is connected with the oil separator, the medium pressure pressure switch and the high pressure pressure switch are arranged on the condenser inflow pipe; one end of the compressor discharge pipe is communicated with the oil separator, the other end is communicated with the compressor 21 outlet, the inlet of the compressor 21 is communicated with the compressor suction pipe, the other end of the compressor suction pipe is connected with the evaporator outflow pipe; one end of the drier inflow pipe is communicated with the condenser 22 outlet, the other end is communicated with the inlet of the liquid storage drier, the outlet of the liquid storage drier is connected with the drier outflow pipe, the other end of the drier outflow pipe is connected with the evaporator inflow pipe, one end of the solenoid valve inflow pipe is communicated with the condenser inflow pipe, the other end is connected with the solenoid valve, one end of the solenoid valve outflow pipe is connected with the solenoid valve, the other end is connected with the defrosting pipe, the two ends of the oil return pipe are connected with the compressor suction pipe and the oil separator respectively, in order to protect the compressor 21, the capillary tube and the oil return pipe are arranged at the return air pipe of the compressor 21.

[0047] With reference to Figure 1 and Figure 2 The power supply module 7 is arranged below the chassis of the vehicle body 1, and a plate-shaped battery is used in the embodiment, the power supply module 7 is used to provide power supply for the operation of the refrigeration outdoor unit and the indoor unit assembly 5, and the refrigeration outdoor unit is installed at the side of the power supply module 7.

[0048] With reference to Figure 1 and Figure 2 The cold machine power supply DCDC 15 is further arranged below the seat of the cab 11, and the cold machine controller 16 is arranged on the instrument desk of the cab 11, after the high-voltage power supply of the whole vehicle motor controller (not shown in the figure) is input into the cold machine power supply DCDC 15, the output high-voltage power supply is connected with the compressor 21, and the cold machine controller 16 is powered, so that the coordinated operation of the refrigeration outdoor unit assembly and the indoor unit assembly 5 can be realized.

[0049] The working principle of the embodiment is as follows:

[0050] The refrigeration outdoor unit parts are integrated on the mounting bracket 2, and then the mounting bracket 2 is integrally installed at the side of the plate-shaped battery, which is suitable for the narrow space below the vehicle chassis, and in the case that the spare tire occupies the rear space at the rear wheel 14, the refrigeration outdoor unit is good in heat dissipation and convenient in storage management, production and manufacturing, packaging and transportation, installation and maintenance, so as to meet the refrigeration layout installation needs, and for the refrigerated truck with the top-mounted refrigeration unit, the noise is smaller, and the refrigeration outdoor unit is integrated together, which reduces the probability of inconvenient transportation management and maintenance caused by the scattered installation and arrangement of parts, so as to improve the convenience of the new energy modified refrigerated truck refrigeration unit installation, management and maintenance.

[0051] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A refrigeration outdoor unit for a new energy commercial refrigerated truck, characterized in that: It includes a compressor (21), a condenser (22) and a fan (23) integrated on a mounting bracket (2), which is located under the chassis of the vehicle body (1) via a connecting assembly (3).

2. The outdoor cooling unit according to claim 1, characterized in that: The connecting assembly (3) includes a first connecting bracket (31) and a second connecting bracket (32). The first connecting bracket (31) is located at the front end of the mounting bracket (2) and between the compressor (21) and the condenser (22), extending vertically upward. The second connecting bracket (32) is located at the rear end of the mounting bracket (2) and behind the condenser (22) and the fan (23), extending vertically upward. The top ends of the first connecting bracket (31) and the second connecting bracket (32) are detachably connected to the beam under the chassis of the vehicle body (1).

3. The outdoor cooling unit according to claim 2, characterized in that: The first connecting bracket (31) has a cable routing port (311) for pipes and wire harnesses to pass through.

4. The outdoor refrigeration unit according to claim 2, characterized in that: The top of the second connecting bracket (32) is folded forward to form a connecting surface (321), which is detachably connected to the beam under the chassis of the vehicle body (1).

5. The outdoor cooling unit according to claim 1, characterized in that: The mounting bracket (2) has a protective plate (4) on its bottom surface, and multiple drainage holes (41) are provided on the protective plate (4) located below the compressor (21).

6. The outdoor refrigeration unit according to claim 5, characterized in that: The mounting bracket (2) is also provided with an air collecting hood (24). The condenser (22) and the fan (23) are integrated on the air collecting hood (24). The protective plate (4) located below the air collecting hood (24) has an installation port (42). Multiple air guide vanes (43) are arranged in sequence in the installation port (42). The air guide vanes (43) extend backward and downward at an angle.

7. A refrigeration system for a new energy commercial refrigerated truck, characterized in that: The vehicle includes an outdoor cooling unit as described in any one of claims 1-6, and also includes an indoor unit assembly (5), a refrigerant pipeline (6), and a power supply module (7). The indoor unit assembly (5) is located in the insulated compartment (12) of the vehicle body (1). The refrigerant pipeline (6) connects the outdoor cooling unit and the indoor unit assembly (5) to form a cooling circuit. The power supply module (7) is located below the chassis of the vehicle body (1) and is used to provide power for the operation of the outdoor cooling unit and the indoor unit assembly (5). The outdoor cooling unit is located on the side of the power supply module (7).

8. The refrigeration system according to claim 7, characterized in that: The inner wall of the insulated compartment (12) is provided with a first wiring hole (121) that communicates with the driver's cab (11) of the vehicle body (1). The bottom wall of the driver's cab (11) is provided with a second wiring hole (111). The wiring harness and refrigerant pipe (6) connected to the indoor unit assembly (5) pass through the first wiring hole (121) and the second wiring hole (111) and then connect to the outdoor refrigeration unit.

9. The refrigeration system according to claim 8, characterized in that: The insulation compartment (12) is provided with a pipe cover (122) on the inner wall of the driver's cab (11) near the vehicle body (1). The first wiring hole (121) is located below the bottom of the pipe cover (122). The refrigerant pipe (6) and wiring harness located in the insulation compartment (12) are passed through the pipe cover (122).

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