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Engineering machinery heat dissipation system, electronic fan control method and engineering machinery

A technology of electronic fan and heat dissipation system, applied in the direction of mechanical equipment, machine/engine, coolant flow control, etc.

Active Publication Date: 2021-06-18
LIUZHOU LIUGONG EXCAVATORS +2
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a construction machinery cooling system for the problem of beating vibrations between electronic fans in the existing construction machinery intelligent cooling system. System, electronic fan control method and engineering machinery, in order to eliminate the beating vibration phenomenon generated by the electronic fan, improve the service life of the intelligent cooling system and the poor comfort of machine driving operation

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  • Engineering machinery heat dissipation system, electronic fan control method and engineering machinery

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Embodiment Construction

[0029] The specific implementation will be described below in conjunction with the accompanying drawings.

[0030] In construction machinery, the cooling system of construction machinery that uses electronic fans to drive air to dissipate heat usually includes a plurality of radiator cores, and the plurality of radiator cores are integrated and assembled together to form a radiator core assembly 1 . During the operation of construction machinery, among the radiator cores, some radiator cores have different heat dissipation requirements, and some radiator cores have the same heat dissipation requirements. Radiator cores with the same heat dissipation requirements are usually arranged overlappingly on the air duct, or Arranged next to each other. Each radiator core is equipped with at least one electronic fan, and the multiple electronic fans are divided into multiple groups, and each group of electronic fans corresponds to one radiator core or multiple radiator cores with the s...

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Abstract

The invention relates to an engineering machinery heat dissipation system. In order to solve the problem that beat vibration is generated between electronic fans in an existing engineering machinery heat dissipation system, the invention provides an engineering machinery heat dissipation system, an electronic fan control method and engineering machinery. The engineering machinery heat dissipation system comprises a controller, a plurality of electronic fans, a temperature measuring device used for measuring a temperature parameter of the heat dissipation system, and a rotating speed detection device used for detecting the actual rotating speed of each electronic fan. The controller determines the theoretical rotating speed of each electronic fan according to the temperature parameter, and outputs current according to the actual rotating speed of each electronic fan to drive and control the electronic fan to work at the theoretical rotating speed. According to the system, each electronic fan is controlled to work at the respective theoretical rotating speed, so that the beat vibration phenomenon caused by a smaller rotating speed difference due to the fact that the rotating speeds of the two electronic fans are close to the theoretical rotating speeds is avoided.

Description

technical field [0001] The invention relates to a cooling system for construction machinery, more specifically, to a cooling system for construction machinery, a method for controlling an electronic fan, and construction machinery. Background technique [0002] At present, in order to improve product performance and comfort, construction machinery has researched and developed an intelligent heat dissipation system with low energy consumption and low noise. The electronic fan of the intelligent heat dissipation system is powered by the vehicle power supply, and the speed is controlled by the vehicle controller. [0003] In construction machinery, the heat dissipation system usually assembles multiple radiator cores together, and the electronic fans corresponding to each radiator core are also integrated and installed on the same plane. The air ducts overlap. The control of the electronic fans is grouped according to the radiator cores, and the electronic fans corresponding ...

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Application Information

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IPC IPC(8): F01P5/02F01P7/04
CPCF01P5/02F01P7/048F01P2005/025
Inventor 赵卫东俞松松刘剑陈江飞李德玺
Owner LIUZHOU LIUGONG EXCAVATORS
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