Single cooling mechanism for engineering vehicle

Abstract

The application relates to the technical field of refrigeration equipment, in particular to a single refrigeration mechanism for an engineering vehicle, which comprises a main box body, an air blower, a refrigeration assembly and a controller. The main box body is provided with an air inlet and an air outlet, and is internally provided with an accommodating chamber. The refrigeration assembly comprises an expansion valve, a refrigerant conveying pipeline and an evaporation core body. The expansion valve is connected with the evaporation core body through the refrigerant conveying pipeline, the expansion valve is arranged outside the main box body, the evaporation core body is arranged in the accommodating chamber in an inclined mode, and the expansion valve is externally connected with a refrigeration device. The air blower is arranged in the accommodating chamber, and the air blower drives gas to flow through the air inlet, the evaporation core body and the air outlet in sequence. The evaporation core body is used for cooling air, and the cooled air flows to a cab through the air outlet. The controller is used for controlling the operation of the refrigeration assembly and the air blower. In the application, the evaporation core body is arranged in the accommodating chamber in an inclined mode to cope with the small installation space of the engineering vehicle. Meanwhile, the contact area of the evaporation core body and air is increased, and the cooling effect of the air is improved.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, and in particular to a single-cooling mechanism for engineering vehicles. Background Technology

[0002] Engineering vehicles are specialized vehicles designed for engineering construction, industrial operations, municipal maintenance, mining, and other similar scenarios, possessing specific functions to complete professional tasks. The refrigeration system in engineering vehicles cools outside air and then delivers the cooled air to the driver's cab to regulate the air temperature and cleanliness inside. Because engineering vehicles need to cope with extreme conditions such as dust and high temperatures, the requirements for their refrigeration systems are significantly higher.

[0003] Compared to regular vehicles, the larger volume occupied by other functional structures in engineering vehicles results in less space for the installation of refrigeration mechanisms, which restricts the efficiency of the refrigeration mechanisms and thus affects the temperature of the cold air entering the cab. Utility Model Content

[0004] In order to improve the cooling effect of the refrigeration system for engineering vehicles, this application provides a single-cooling system for engineering vehicles.

[0005] This application provides a single-cooling mechanism for engineering vehicles, which adopts the following technical solution: A single-cooling mechanism for an engineering vehicle includes a main housing, a blower, a refrigeration component, and a controller. The main housing has an air inlet and an air outlet, and a receiving chamber is provided inside the main housing. The refrigeration component includes an expansion valve, a refrigerant delivery pipe, and an evaporator core. The expansion valve is connected to the evaporator core through the refrigerant delivery pipe and is located on the outside of the main housing. The evaporator core is inclinedly disposed in the receiving chamber, and the expansion valve is externally connected to refrigeration equipment. The blower is disposed in the receiving chamber and drives gas to flow sequentially through the air inlet, the evaporator core, and the air outlet. The evaporator core is used to cool the air, and the cooled air flows to the driver's cab through the air outlet. The controller is used to control the operation of the refrigeration component and the blower.

[0006] By adopting the above technical solution, the evaporator core is tilted in the receiving chamber, which can reduce the width of the main box and the volume occupied by the single cooling mechanism to cope with the small installation space of the engineering vehicle; at the same time, tilting the evaporator core can increase the contact area between the evaporator core and the air, thereby improving the cooling effect of the evaporator core on the air.

[0007] Optionally, the elevation of the evaporator core decreases along the direction away from the air inlet.

[0008] By adopting the above technical solution and limiting the tilt angle of the evaporator core, the contact time between the air and the evaporator core can be increased after the air flows into the receiving chamber through the air inlet, thereby improving the cooling effect of the evaporator core on the air.

[0009] Optionally, the bottom plate of the main tank includes a diversion plate and a confluence plate, the diversion plate and the confluence plate being integrally formed; the diversion plate is inclined, the confluence plate is horizontal, the diversion plate is used to divert water to the confluence plate, and the bottom of the confluence plate is provided with a water outlet pipe.

[0010] By adopting the above technical solution, when air comes into contact with the evaporator core, the water vapor in the air will condense into water on the surface of the evaporator core. Through the coordinated operation of the drainage plate and the manifold, it is beneficial to drain the condensate at the bottom of the receiving chamber, thereby reducing the odor of the cold air.

[0011] Optionally, a temperature sensor is also included, which is disposed on the main housing and is used to monitor the temperature of the air flowing through the air inlet.

[0012] By adopting the above technical solution, a temperature sensor is used to monitor the air temperature at the air inlet, so that the controller can control the operation of other structures.

[0013] Optionally, it also includes a filter element, wherein the main housing has a sandwich layer, the filter element is disposed in the sandwich layer, and the filter element is used to cover the air inlet.

[0014] By adopting the above technical solution and using filter elements to filter air, engineering vehicles can cope with extreme working conditions such as dust and high temperature, and improve the cleanliness of the air delivered to the driver's cab.

[0015] Optionally, the sandwich layer and the filter element are rectangular parallelepiped in shape, and the filter element is inserted and removed into the sandwich layer.

[0016] By adopting the above technical solution, the filter element is installed on the main housing by insertion and removal, which makes it convenient for staff to replace the filter element.

[0017] Optionally, it also includes a connecting sheet metal part, which is fixed to the main body. The thickness of the connecting sheet metal part is greater than the thickness of the main body. The connecting sheet metal part is used to fix the main body to the engineering vehicle.

[0018] By adopting the above technical solution, the main body is fixed to the engineering vehicle using thicker connecting sheet metal parts, so as to ensure the connection strength between the main body and the engineering vehicle and reduce the risk of deformation of the main body due to excessive load.

[0019] Optionally, two connecting sheet metal parts are provided, and the two connecting sheet metal parts are arranged opposite to each other on both sides of the main housing.

[0020] By adopting the above technical solution, the two connecting sheet metal parts are arranged opposite each other to improve the balance of the main body's stress and reduce the risk of deformation of the main body.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The evaporator core is tilted in the receiving chamber, which can reduce the width of the main box and the volume occupied by the single cooling mechanism to cope with the small installation space of the engineering vehicle; at the same time, tilting the evaporator core can increase the contact area between the evaporator core and the air, thereby improving the cooling effect of the evaporator core on the air. 2. Moisture in the air condenses on the evaporator surface. The coordinated action of the drainage plate and the manifold helps to drain the condensate from the bottom of the containment chamber, reducing the odor of the cold air. 3. Use thicker connecting sheet metal parts to fix the main body to the engineering vehicle to ensure the connection strength between the main body and the engineering vehicle and reduce the risk of deformation of the main body due to excessive load. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the external structure of the single-cooling mechanism in this embodiment.

[0023] Figure 2 This is a schematic diagram of the external structure of the single-cooling mechanism in this embodiment.

[0024] Figure 3 This is a schematic diagram of the internal structure of the single-cooling mechanism in this embodiment.

[0025] Figure 4 This is a schematic diagram of the cooling component in this embodiment.

[0026] Explanation of reference numerals in the attached drawings: 1. Main housing; 11. Air inlet; 12. Air outlet; 13. Receiving chamber; 14. Mezzanine; 15. Base plate; 151. Drain plate; 152. Combination plate; 153. Water outlet pipe; 2. Connecting sheet metal parts; 3. Refrigeration components; 31. Expansion valve; 32. Refrigerant delivery pipe; 33. Evaporator core; 4. Blower; 5. Controller; 6. Filter element; 7. Temperature sensor. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1 -4 provides further details regarding this application.

[0028] This application discloses a single-cooling mechanism for engineering vehicles. The single-cooling mechanism is installed in the lower compartment of the driver's cab of the engineering vehicle and is used to supply cool air into the driver's cab. (See also...) Figures 1 to 3The single-cooling mechanism for engineering vehicles includes a main body 1, connecting sheet metal parts 2, a cooling assembly 3, a blower 4, and a controller 5. The controller 5 is used to control the operation of the cooling assembly 3 and the blower 4.

[0029] Reference Figure 1 and Figure 2 A connecting sheet metal part 2 is fixed to the main body 1. The thickness of the connecting sheet metal part 2 is greater than the thickness of the main body 1. The connecting sheet metal part 2 is used to fix the main body 1 to the engineering vehicle. In this embodiment, there are two connecting sheet metal parts 2, which are arranged opposite to each other on both sides of the main body 1. The use of the thicker connecting sheet metal part 2 to fix the main body 1 to the engineering vehicle ensures the connection strength between the main body 1 and the engineering vehicle; the opposite arrangement of the two connecting sheet metal parts 2 improves the balance of force on the main body 1, thereby reducing the risk of deformation of the main body 1 due to excessive load.

[0030] Reference Figure 2 and Figure 3 The main housing 1 has an air inlet 11 and an air outlet 12, and a receiving chamber 13 is provided inside the main housing 1. In this embodiment, the air inlet 11 is located at the bottom of the main housing 1, and there are two air inlets 11. The air outlet 12 is located at the top of the main housing 1, and the air outlet 12 of the main housing 1 is connected to the cab of the engineering vehicle through a conveying pipe to deliver cold air to the cab.

[0031] Reference Figure 1 and Figure 2 In this embodiment, the single-cooling mechanism also includes a filter element 6. The main housing 1 has a sandwich layer 14, and the filter element 6 is disposed in the sandwich layer 14, covering the air inlet 11. In this embodiment, the sandwich layer 14 and the filter element 6 are cuboid in shape, and the filter element 6 is inserted and removed from the sandwich layer 14. By using the filter element 6 to filter the air, the engineering vehicle can cope with extreme working conditions such as dust and high temperature, improving the cleanliness of the air delivered to the driver's cab; and the filter element 6 is installed on the main housing 1 by insertion and removal, so that the staff can easily replace the filter element 6.

[0032] Reference Figure 3 and Figure 4 The refrigeration assembly 3 includes an expansion valve 31, a refrigerant delivery pipe 32, and an evaporator core 33. The expansion valve 31 is connected to the evaporator core 33 via the refrigerant delivery pipe 32. The expansion valve 31 is located on the outside of the main housing 1, and the evaporator core 33 is inclinedly disposed in the receiving chamber 13. The expansion valve 31 is connected to external refrigeration equipment, including a compressor and a condenser. In this embodiment, the elevation of the evaporator core 33 decreases along the direction away from the air inlet 11.

[0033] Reference Figure 3 and Figure 4Furthermore, in this embodiment, two expansion valves 31 and two refrigerant delivery pipes 32 are provided to allow the refrigerant to circulate within the evaporator core 33. Evaporator cores 33 (evaporators) are widely used in the prior art, and this application will not elaborate on the specific structure of the evaporator core 33.

[0034] The working principle of the refrigeration component 3 is as follows: The compressor draws in the low-pressure gaseous refrigerant flowing from the evaporator, compresses it into a high-pressure, high-temperature gaseous refrigerant, and discharges it into the condenser. The high-pressure, high-temperature gaseous refrigerant enters the condenser, where the oncoming wind or the condenser fan blows across the condenser fins, carrying away the heat from the refrigerant; the refrigerant gradually cools, becoming a high-pressure, room-temperature liquid refrigerant. The high-pressure liquid refrigerant flows through the expansion valve 31, causing a rapid temperature drop, becoming a low-pressure, low-temperature gas-liquid mixture, which enters the evaporator core 33. The low-pressure gas-liquid mixture flows within the evaporator core 33, where air comes into contact with its surface. The refrigerant within the evaporator core 33 absorbs heat from the air to lower its temperature; the refrigerant, having absorbed the heat, then flows back to the compressor.

[0035] Reference Figure 3 The blower 4 is located in the receiving chamber 13. The blower 4 drives the gas to flow sequentially through the air inlet 11, the evaporator core 33 and the air outlet 12. The evaporator core 33 is used to cool the air, and the cooled air flows to the cab through the air outlet 12.

[0036] Reference Figure 3 When air comes into contact with the evaporator core 33, the water vapor in the air condenses into water on the surface of the evaporator. Therefore, in this embodiment, the bottom plate 15 of the main housing 1 includes a diversion plate 151 and a confluence plate 152, which are integrally formed. The diversion plate 151 is inclined, and the confluence plate 152 is horizontal. The diversion plate 151 is used to divert water to the confluence plate 152, and the bottom of the confluence plate 152 is provided with a water outlet pipe 153. Through the coordinated operation of the diversion plate 151 and the confluence plate 152, it is beneficial to drain the condensate at the bottom of the receiving chamber 13 to reduce the odor of the cold air.

[0037] Reference Figure 2 and Figure 3 In addition, the single-cooling mechanism of this application also includes a temperature sensor 7, which is disposed on the main housing 1. The temperature sensor 7 is used to monitor the air temperature flowing through the air inlet 11; thereby, the air temperature of the air inlet 11 is monitored by the temperature sensor 7 so that the controller 5 can control the operation of other structures.

[0038] The implementation principle of a single-cooling mechanism for engineering vehicles according to an embodiment of this application is as follows: Reference Figure 3 and Figure 4The evaporator core 33 is inclined in the receiving chamber 13, which can reduce the width of the main box 1 and the volume occupied by the single cooling mechanism to cope with the small installation space of the engineering vehicle; at the same time, the inclined arrangement of the evaporator core 33 can increase the contact area between the evaporator core 33 and the air, thereby improving the cooling effect of the evaporator core 33 on the air.

[0039] Reference Figure 3 and Figure 4 By limiting the tilt angle of the evaporator core 33, the contact time between the air and the evaporator core 33 can be increased after the air flows into the receiving chamber 13 through the air inlet 11, thereby improving the cooling effect of the evaporator core 33 on the air.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A single refrigeration unit for an off-highway vehicle, characterized by: The system includes a main housing (1), a blower (4), a refrigeration assembly (3), and a controller (5). The main housing (1) has an air inlet (11) and an air outlet (12), and a receiving chamber (13) is provided inside the main housing (1). The refrigeration assembly (3) includes an expansion valve (31), a refrigerant delivery pipe (32), and an evaporator core (33). The expansion valve (31) is connected to the evaporator core (33) through the refrigerant delivery pipe (32). The expansion valve (31) is located on the outside of the main housing (1). The evaporator core (33) is inclinedly disposed in the receiving chamber (13), and the expansion valve (31) is externally connected to the refrigeration equipment; the blower (4) is disposed in the receiving chamber (13), and the blower (4) drives the gas to flow sequentially through the air inlet (11), the evaporator core (33) and the air outlet (12). The evaporator core (33) is used to cool the air, and the cooled air flows to the vehicle cab through the air outlet (12); the controller (5) is used to control the operation of the refrigeration component (3) and the blower (4).

2. The single refrigerant circuit for a work vehicle according to claim 1, characterized by: Along the direction away from the air inlet (11), the elevation of the evaporator core (33) decreases.

3. The single refrigerant circuit for a work vehicle of claim 1, wherein: The bottom plate (15) of the main box (1) includes a diversion plate (151) and a confluence plate (152). The diversion plate (151) and the confluence plate (152) are integrally formed. The diversion plate (151) is inclined and the confluence plate (152) is horizontal. The diversion plate (151) is used to divert water to the confluence plate (152). The bottom of the confluence plate (152) is provided with a water outlet pipe (153).

4. The single refrigerant circuit for a work vehicle of claim 1, wherein: It also includes a temperature sensor (7), which is disposed on the main housing (1) and is used to monitor the temperature of the air flowing through the air inlet (11).

5. The single refrigerant circuit for a work vehicle of claim 1, wherein: It also includes a filter element (6), the main housing (1) is provided with a sandwich (14), the filter element (6) is disposed in the sandwich (14), and the filter element (6) is used to cover the air inlet (11).

6. The single-chill engine for an engineering vehicle according to claim 5, characterized by: The sandwich layer (14) and the filter element (6) are rectangular parallelepiped in shape, and the filter element (6) is inserted into the sandwich layer (14).

7. The single chiller unit for an off-highway vehicle of claim 1, wherein: It also includes a connecting sheet metal part (2), which is fixed on the main body (1). The thickness of the connecting sheet metal part (2) is greater than the thickness of the main body (1). The connecting sheet metal part (2) is used to fix the main body (1) on the engineering vehicle.

8. The single-chill engine for an engineering vehicle according to claim 7, characterized by: Two connecting sheet metal parts (2) are provided, and the two connecting sheet metal parts (2) are arranged opposite to each other on both sides of the main body (1).

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