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Lithium iron phosphate battery type electric excavator

A lithium iron phosphate battery and electric excavator technology, which is applied in the direction of earth mover/shovel, construction, etc., can solve the problems of inconvenient movement, poor safety performance, low energy density ratio, etc., to ensure sustainable operation time , Reasonable structural layout, and flexible charging methods

Inactive Publication Date: 2015-02-04
GUANGXI YUCHAI HEAVY IND
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At present, electric excavators mainly include cable-type electric excavators and rechargeable electric excavators, and cable-type electric excavators are affected by the need to connect cables during work, which makes it inconvenient to move during work, and the moving distance is also limited.
In the past, rechargeable electric excavators could only choose ordinary lead-acid batteries, and ordinary lead-acid batteries have poor safety performance, that is, they are prone to heat or explode, and their lifespan is short (1-1.5 years), with memory effect, heavy weight and low energy density ratio. to promote

Method used

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  • Lithium iron phosphate battery type electric excavator
  • Lithium iron phosphate battery type electric excavator
  • Lithium iron phosphate battery type electric excavator

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Embodiment Construction

[0022] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] Such as figure 1 As shown, the lithium iron phosphate battery electric excavator of the present invention includes an excavator body 1, an energy system 2, a power output system 3 and a cooling system 4, wherein the energy system 2, the power output system 3 and the cooling system 4 are two The two are connected to each other and installed on the excavator body 1. The excavator body 1 includes a chassis assembly 11 , a slewing platform assembly 12 , a cab assembly 13 and a working device assembly 14 , wherein the arrangement and connection of the excavator body 1 are consistent with known excavators.

[0024] Such as figure 1 , figure 2 As shown, the energy system 2 includes a charger 21, a 640V lithium iron phosphate power supply battery pack 22, a variable voltage converter 23, a 12V / 24V lithium iron pho...

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Abstract

The invention provides a lithium iron phosphate battery type electric excavator. An energy system of the excavator comprises a charger, a lithium iron phosphate power supply battery unit, a voltage and frequency changer and a lithium iron phosphate control power supply battery unit, wherein all the components of the energy system are connected through wires, an electric engine of a power output system is connected with a hydraulic pump through a coupler, a connecting disc is fixedly connected to the electric engine and the hydraulic pump, a cooling system comprises a water pump, cooling water pipes, a radiator and a draught fan, and the power output system and the water pump, the water pump and the radiator, as well as the radiator and the power output system are connected through the cooling water pipes. The lithium iron phosphate battery is used, the performance is more reliable and stable, the whole machine has a flexible charging way, the operation cost is low, the noise is low, and the excavator is energy-saving and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of electric excavator manufacturing, in particular to a lithium iron phosphate battery electric excavator. Background technique [0002] With the shortage of oil, rising fuel prices and worsening exhaust pollution, in order to reduce the use of fuel or not use fuel, reduce the operating cost of machines, and reduce the pollution of exhaust to the environment, in the field of construction machinery, especially excavators, which account for the largest proportion , Research and development of hybrid excavators or electric excavators, and because electric excavators have achieved zero emissions and low noise, they are more popular. At present, electric excavators mainly include cable-type electric excavators and rechargeable electric excavators, and cable-type electric excavators are affected by the need to connect cables during work, which makes it inconvenient to move during work, and the moving distance is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F9/20
Inventor 黄平黄井泉黄茂锋林坤莫国强梁悦斌程金国黄升李才斌
Owner GUANGXI YUCHAI HEAVY IND
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