Intelligent control system favorable for improving heat dissipation efficiency of excavator

Abstract

The invention discloses an intelligent control system favorable for improving heat dissipation efficiency of an excavator. The intelligent control system comprises an engine, an engine fan, an engine cooling water radiator, a hydraulic oil radiator, a power source, a fuse A, an air-conditioner switch, a temperature controller, a high-low voltage switch, a compressor clutch, an air-conditioning condenser, a temperature sensor, a fan motor, a fan, a fuse B and a controller connected to a joint of the high-low voltage switch and the compressor clutch. The air-conditioning condenser is moved away from the front of the engine cooling water radiator and the hydraulic oil radiator, is placed at a position with an independent space and is aligned with the fan connected with the fan motor, not only can heat of the air-conditioning condenser be dissipated independently, but also heat dissipation efficiency of the engine cooling water radiator and the hydraulic oil radiator can be improved, flexible adjustment can be performed according to the heat dissipation requirements of the air-conditioning condenser simultaneously, and the engine cooling water radiator and the hydraulic oil radiator can be cleaned conveniently.

Description

technical field [0001] The invention relates to an intelligent control system which is beneficial to improving the heat dissipation efficiency of an excavator, and belongs to the field of heat dissipation systems. Background technique [0002] The heat dissipation in the excavator mainly includes the engine cooling water radiator 16, the hydraulic oil radiator 17 and the air conditioner condenser 9. The installation methods of these three radiators in the excavator are mostly as follows: image 3 As shown, the air conditioner condenser 9 is assembled with the parallel engine cooling water radiator 16 and the hydraulic oil radiator 17, and is installed in front of the engine cooling water radiator 16 and the hydraulic oil radiator 17 air suction surfaces. This installation method has the following problems: [0003] 1. Regardless of whether the air conditioning system is working or not, as long as the engine 14 starts to work, the engine fan 15 will simultaneously cool the en...

AI Technical Summary

Problems solved by technology

[0003] 1. Regardless of whether the air conditioning system is working or not, as long as the engine 14 starts to work, the engine fan 15 will simultaneously cool the engine cooling water radiator 16, the hydraulic oil radiator 17 and the air conditioning condenser 9; During operation, the air-conditioning system also enters the working state. At this time, the air-conditioning condenser 9 itself will also produce a certain amount of heat and needs to dissipate heat, so it will consume a part of the cooling wind from the engine fan 15, reducing the engine cooling water radiator 16 and The heat dissipation efficiency of the hydraulic oil radiator 17; in order to increase the heat dissipation efficiency, it is generally realized by increasing the area of ​​the radiator or increasing the speed of the engine fan 15; but increasing the area of ​​the radiator will increase the cost of the radiator and make the layout difficult, and increase the fan speed will increase the noise;

[0004] 2. The air conditioner condenser 9 is assembled with the engine cooling water radiator 16 and the hydraulic oil radiator 17, which is not conducive to the effective cleaning of the engine cooling water radiator 16 and the hydraulic oil radiator 17, and affects the heat dissipation effect;

[0005] 3. The cooling air used to cool the air conditioner condenser 9 comes from the engine fan 15, and the speed of the engine fan 15 depends on the speed of the engine 14, which cannot be flexibly regulated according to the heat dissipation requirements of the heat dissipation system;

[0006] 4. The engine fans 15 currently used on excavators are all "suction type" fans. The engine fans 15 radiate heat from the engine cooling water radiator 16 and hydraulic oil radiator 17 by sucking in outside air, while the heat dissipation of the air conditioner condenser 9 The engine fan 15 is also driven by the engine 14 to dissipate heat. If there is a lot of dust, the air conditioner condenser 9 will be blocked in a short time, resulting in poor heat dissipation, and the cooling effect of the air conditioner will be deteriorated.

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