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Energy-saving warm air heating system for electric excavator

A technology for electric excavators and heating systems, which is applied in heating/cooling equipment, vehicle parts, road transportation and emission reduction, etc., to achieve the effect of improving heat dissipation and saving electric energy

Active Publication Date: 2021-06-04
SHANDONG LINGONG CONSTR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned defects and provide an energy-saving warm air heating system for electric excavators. The system consumes less electric energy and is heated and cooled by the high-temperature hydraulic oil in the motor water jacket, motor controller cooling plate and oil diffuser chamber. Water, while improving the cooling capacity of hydraulic oil, meets the demand for warm air temperature

Method used

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  • Energy-saving warm air heating system for electric excavator
  • Energy-saving warm air heating system for electric excavator
  • Energy-saving warm air heating system for electric excavator

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Effect test

Embodiment 1

[0023] Embodiment 1: an energy-saving warm air heating system for an electric excavator, including a warm air system and a hydraulic oil radiator 14, the hydraulic oil chamber 8 of the hydraulic oil radiator 14 is provided with an aluminum tube 9, and the two ends of the aluminum tube 9 pass through the pipeline respectively Connect with the water inlet and outlet of the heating system.

Embodiment 2

[0024] Embodiment 2: It also includes a water radiator 15, a motor controller cooling plate 19 and a motor water jacket 3 connected in sequence through pipelines, the motor water jacket 3 is connected to one end of the aluminum pipe 9 through the water pump 4, and the other end of the aluminum pipe 9 is connected to the heater. The water inlet of the system is connected, and the water outlet of the heating system is connected with the water radiator 15; others are the same as the first embodiment.

Embodiment 3

[0025] Embodiment three: as Figure 1 to Figure 4 As shown, a three-way joint B 6 and a three-way joint A 11 are provided between the hydraulic oil radiator 14 and the water pump 4, and a water valve 12 is provided on the three-way joint A 11, and the water inlet of the three-way joint B 6 and the water pump 4 is connected to the water outlet, the tee joint B 6 is provided with water outlet one and water outlet two, the water outlet one is connected with the water valve 12, the water outlet two is connected with the aluminum pipe 9, the water inlet of the three-way joint A 11 is connected with the heater The air return pipe 20 is connected, the water outlet of the three-way joint first 11 is connected with the water inlet of the water radiator 15, the water outlet of the three-way joint first 11 is connected with the water inlet of the water radiator 15 by the water radiator water inlet pipe 17, and the water pump The water outlet of 4 is connected with the water inlet of tee ...

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Abstract

The invention discloses an energy-saving warm air heating system for an electric excavator, which belongs to the technical field of engineering machinery. It mainly includes a warm air system and a hydraulic oil radiator. The hydraulic oil chamber of the hydraulic oil radiator is provided with an aluminum tube, and the two ends of the aluminum tube are respectively connected to the water inlet and the water outlet of the warm air system through pipes. The invention consumes less electric energy and heats the cooling water through the high-temperature hydraulic oil in the water jacket of the motor, the cooling plate of the motor controller, and the oil dispersion chamber, thereby meeting the requirement of the warm air temperature while improving the cooling capacity of the hydraulic oil. The invention is mainly used in the warm air system of the electric excavator.

Description

technical field [0001] The invention belongs to the technical field of engineering machinery, and in particular relates to an energy-saving warm air heating system for an electric excavator. Background technique [0002] In the current design of electric excavators, the warm air heating system can be roughly divided into two methods: 1. Electric heating is used to realize warm air heating. Energy saving; 2. Heat the cooling water through the heat dissipation of the motor water jacket and the heat dissipation plate of the motor controller to provide heat for the heating system. However, the heat dissipation of the motor water jacket and the motor controller water jacket is limited, which will lead to low temperature of the warm air. Unable to meet heating requirements. At present, there is no warm air heating system that can improve the cooling capacity of the hydraulic oil and reduce power consumption while meeting the temperature of the warm air. Contents of the inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60H1/00B60H1/03
CPCB60H1/00392B60H1/03Y02T10/88
Inventor 夏兆沂宋凯刘大东陈亮季勇杨联涛
Owner SHANDONG LINGONG CONSTR MACHINERY