Cooling system of pure electric low-entrance working vehicle

Abstract

The utility model relates to a cooling system of a pure electric low-entrance working vehicle. The cooling system comprises a radiator, the radiator is arranged on the rear wall of a cab of the pure electric low-entrance working vehicle; the radiator is arranged on the rear wall of the cab of the pure electric low-entrance operation vehicle, and the front end bumper does not need to be provided with holes, so that the wind resistance of the whole vehicle is reduced, and the problem that the space for arranging the radiator at the front end of the pure electric low-entrance operation vehicle is insufficient is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pure electric vehicle technical field especially relates to a cooling system of pure electric low entry operation vehicle. BACKGROUND

[0002] At present, the radiator of heavy truck industry is arranged at the front end of the whole vehicle, for the electric drive axle vehicle, the pipeline needs to go from the front end to the last end, the pipeline is long, the layout is poor in appearance, and the cost is high. The low entry sanitation vehicle type is low in door position and low in cab floor, so that the height of the engine compartment space is small, the front end cooling module arrangement space is insufficient, the effective heat dissipation surface area of the radiator is small, and the heat dissipation capacity cannot meet the requirements. At the same time, the cooling module is arranged at the front end, which is affected by the low entry cab floor, and the front and rear pipeline arrangement is complex, and in addition, the front end bumper or front cover needs to be holed, which is not conducive to reducing the wind resistance of the whole vehicle. SUMMARY

[0003] The utility model aims at the shortage of prior art and provides a cooling system of pure electric low entry operation vehicle.

[0004] The utility model is adopted with the following technical scheme to realize:

[0005] A cooling system of pure electric low entry operation vehicle, comprising a radiator, the radiator is arranged on the rear wall of the cab of the pure electric low entry operation vehicle.

[0006] Further, the radiator has two and is arranged above the tire respectively.

[0007] Further, it further includes a wind shield, and the wind shield is arranged on the inner side guard plate of the radiator.

[0008] Further, it further includes an electronic fan, and the electronic fan has a plurality of and is arranged on the wind shield.

[0009] Further, it further includes a condenser, and the condenser is arranged on the outer side guard plate of the radiator.

[0010] Further, it further includes an expansion tank, and the expansion tank is arranged on the upper side guard plate of the radiator.

[0011] Further, it further includes a heat pump unit, and the heat pump unit is arranged below the cab and is fixed on the frame.

[0012] Compared with the prior art, the utility model has the following beneficial technical effects:

[0013] The radiator is arranged on the rear wall of the cab of the pure electric low-entry operation vehicle, the front end bumper does not need to be holed, the whole vehicle wind resistance is reduced, and the problem of insufficient space for arranging the radiator at the front end of the pure electric low-entry operation vehicle is solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model.

[0015] In the figure: 1, expansion tank; 2, radiator; 3, wind shield; 4, electronic fan; 5, heat pump unit; 6, condenser. DETAILED DESCRIPTION

[0016] As Figure 1 shown: a cooling system of pure electric low-entry operation vehicle, including radiator 2;Radiator 2 is arranged on the rear wall of the cab of the pure electric low-entry operation vehicle;Front end bumper does not need to be holed, the whole vehicle wind resistance is reduced, and the problem of insufficient space for arranging the radiator at the front end of the pure electric low-entry operation vehicle is solved.

[0017] Further, the radiator 2 has two, and is arranged above the tire respectively;Radiator 2 is arranged on the left and right sides of the rear wall of the cab, and is fixed by the corresponding support, air is inhaled from both sides, and the effective heat dissipation area can reach more than 80%, and the heat dissipation uniformity is good.

[0018] It also includes wind shield 3;Wind shield 3 is arranged on the inner side guard plate of radiator 2. With the center of the rear wall of the cab as the inner side, the wind shield 3 can be fixed on the inner side guard plate of the radiator 2 by bolts, and the upper and lower sides are pasted with sealing rings, so as to prevent the wind from blowing out from the gap between the wind shield 3 and the radiator 2, causing hot air backflow and affecting the heat dissipation performance of the radiator.

[0019] It also includes electronic fan 4;Electronic fan 4 has multiple, and is distributed on wind shield 3. Preferably, the number of electronic fan 4 is 6, and each radiator 2 matches three electronic fans, the electronic fan 4 adopts suction type fan, which prevents affecting the two pedestrians, the fan adopts PWM (pulse width modulation) control, the whole vehicle controls the fan speed according to the water temperature of each heat dissipation component, so that the fan always works in the most economical working interval, and the energy consumption of the whole vehicle is reduced. At the same time, through the scheme of multiple small fans, the fan speed is reduced, and the noise of the whole vehicle is reduced.

[0020] It also includes condenser;Condenser 6 is arranged on the outer side guard plate of radiator 2. Condenser 6 is used for battery and cab refrigeration and heating.

[0021] It also includes expansion tank 1;Expansion tank 1 is arranged on the upper side guard plate of radiator 2. Expansion tank 1 is arranged at the highest point of the waterway, which solves the problem of difficult degassing of the battery and motor cooling circuit.

[0022] Also include heat pump unit 5; heat pump unit 5 is arranged below the cab, and is fixed on the frame. Heat pump unit 5 adopts the heat pump unit commonly used in pure electric vehicles, which can include compressor, water heating PTC, water pump, valve, electronic expansion valve, water coolant heat exchanger, water temperature sensor, refrigerant temperature and pressure sensor, pipeline, support, etc. These devices are centrally arranged together, the heat pump unit 5 shell reserves various wire harness pipeline interfaces, which can meet the wire harness pipeline connection of the pure electric vehicle cooling system, the wire harness pipeline is short and arranged compactly; The vehicle space is saved, the vehicle energy efficiency is improved, the operation cost is reduced, and the comfort and safety of operation are improved.

Claims

1. A cooling system for a pure electric low-entry-level work vehicle, characterized in that, Includes a radiator (2); the radiator (2) is installed in the rear of the cab of the pure electric low-entry operation vehicle; there are two radiators (2), and they are respectively installed above the tires; It also includes an expansion tank (1); the expansion tank (1) is disposed on the upper side guard plate of the radiator (2).

2. The cooling system of the pure electric low-entry-access work vehicle as described in claim 1, characterized in that, It also includes a wind shield (3); the wind shield (3) is disposed on the inner protective plate of the radiator (2).

3. The cooling system of the pure electric low-entry-access work vehicle as described in claim 2, characterized in that, It also includes an electronic fan (4); there are multiple electronic fans (4) distributed on the wind shield (3).

4. The cooling system of the pure electric low-entry-access work vehicle as described in claim 1, characterized in that, It also includes a condenser (6); the condenser (6) is disposed on the outer protective plate of the radiator (2).

5. The cooling system of the pure electric low-entry-access work vehicle as described in claim 1, characterized in that, It also includes a heat pump unit (5); the heat pump unit (5) is located below the cab and fixed to the frame.

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