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Thermal management system and electric hydraulic excavator

A heat management system and hydraulic excavator technology, applied in the field of heat management system, can solve the problem of high cost, achieve the effect of reducing energy waste, improving energy utilization rate, and reducing cold start

Pending Publication Date: 2020-10-09
SHANGHAI SANY HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention includes, for example, to provide a thermal management system, which can improve the existing power battery heating by electric heater, which has the problem of high cost
[0005] The purpose of the present invention also includes providing an electro-hydraulic excavator, which can improve the existing power battery heating by an electric heater, which has the problem of high cost

Method used

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  • Thermal management system and electric hydraulic excavator

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0030] Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art wi...

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Abstract

Embodiments of the invention provide a thermal management system and an electric hydraulic excavator, belonging to the field of thermal management systems. The invention aims to solve the problem thatcost is high in the prior art since an existing power battery is heated by an electric heater. The thermal management system comprises: a hydraulic cylinder heat dissipation system, which comprises afirst loop and a hydraulic cylinder arranged on the first loop; a battery heating system, which comprises a second loop and a battery pack arranged on the second loop; and a first heat exchanger, which is arranged on the first loop and the second loop at the same time. Through the first heat exchanger, working heat of hydraulic oil is used for heating the battery pack, and heat energy generated by a hydraulic system in the working process is fully utilized.

Description

technical field [0001] The invention relates to the field of thermal management systems, in particular to a thermal management system and an electro-hydraulic excavator. Background technique [0002] With the continuous development of new energy technology, the field of construction machinery has accelerated the pace of research and development of electric excavators. As the power battery in the key system of electric excavator, its performance, life and reliability are closely related to the battery temperature. In the prior art, the performance of the power battery will be significantly reduced in a low temperature environment, and the charging and discharging ability will be significantly restricted. Therefore, the battery thermal management system is very important. [0003] The battery heating method of the existing battery thermal management system generally uses a high-voltage electric heater, but the cost of its components is high, and the heating mode is relativel...

Claims

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Application Information

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IPC IPC(8): H01M10/615B60L58/27E02F9/20E02F9/22H01M10/625H01M10/6568H01M10/66
CPCB60L2200/40B60L58/27E02F9/2091E02F9/2217H01M2220/20H01M10/615H01M10/625H01M10/6568H01M10/66Y02E60/10Y02T10/70
Inventor 郝振东
Owner SHANGHAI SANY HEAVY IND
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