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A platform for research: civil engineering, architecture and urbanism
Heat dissipation system and method of electric excavator and electric excavator
The embodiment of the invention discloses a heat dissipation system and method for an electric excavator and the electric excavator. The system comprises a refrigeration branch, a first cooling branch, a second cooling branch, a power battery cooling loop and a control module. The refrigeration branch comprises a compressor and a condenser; a stop valve and a cab cooling module are arranged on the first cooling branch; an electronic expansion valve and a heat exchanger are arranged on the second cooling branch; a heat exchanger, a power battery pack and a water supply module are arranged on the power battery cooling loop; the power battery cooling loop exchanges heat with the second cooling branch through the heat exchanger; the control module comprises a heat management controller and a temperature sensor, and the heat management controller obtains the battery cell temperature of the power battery pack through the temperature sensor and controls the opening degree of the electronic expansion valve and on-off of the stop valve so as to distribute refrigerant of the refrigeration branch to the first cooling branch and/or the second cooling branch. According to the technical scheme, the heat dissipation cost of the heat dissipation system of the electric excavator is reduced, and the heat dissipation effect is improved.
本发明实施例公开了一种电动挖掘机散热系统、方法及电动挖掘机，该系统包括：制冷支路、第一冷却支路、第二冷却支路、动力电池冷却回路和控制模块；制冷支路包括压缩机和冷凝器；第一冷却支路上设有截止阀和驾驶室冷却模块；第二冷却支路上设有电子膨胀阀和换热器；动力电池冷却回路上设有换热器、动力电池组和供水模块，动力电池冷却回路与第二冷却支路之间通过换热器换热；控制模块包括热管理控制器和温度传感器，热管理控制器通过温度传感器获取动力电池组的电芯温度，控制电子膨胀阀开度和截止阀通断，以将制冷支路冷媒分配至第一冷却支路和/或第二冷却支路。本发明实施例的技术方案降低了电动挖掘机散热系统散热成本，提高了散热效果。
Heat dissipation system and method of electric excavator and electric excavator
The embodiment of the invention discloses a heat dissipation system and method for an electric excavator and the electric excavator. The system comprises a refrigeration branch, a first cooling branch, a second cooling branch, a power battery cooling loop and a control module. The refrigeration branch comprises a compressor and a condenser; a stop valve and a cab cooling module are arranged on the first cooling branch; an electronic expansion valve and a heat exchanger are arranged on the second cooling branch; a heat exchanger, a power battery pack and a water supply module are arranged on the power battery cooling loop; the power battery cooling loop exchanges heat with the second cooling branch through the heat exchanger; the control module comprises a heat management controller and a temperature sensor, and the heat management controller obtains the battery cell temperature of the power battery pack through the temperature sensor and controls the opening degree of the electronic expansion valve and on-off of the stop valve so as to distribute refrigerant of the refrigeration branch to the first cooling branch and/or the second cooling branch. According to the technical scheme, the heat dissipation cost of the heat dissipation system of the electric excavator is reduced, and the heat dissipation effect is improved.
本发明实施例公开了一种电动挖掘机散热系统、方法及电动挖掘机，该系统包括：制冷支路、第一冷却支路、第二冷却支路、动力电池冷却回路和控制模块；制冷支路包括压缩机和冷凝器；第一冷却支路上设有截止阀和驾驶室冷却模块；第二冷却支路上设有电子膨胀阀和换热器；动力电池冷却回路上设有换热器、动力电池组和供水模块，动力电池冷却回路与第二冷却支路之间通过换热器换热；控制模块包括热管理控制器和温度传感器，热管理控制器通过温度传感器获取动力电池组的电芯温度，控制电子膨胀阀开度和截止阀通断，以将制冷支路冷媒分配至第一冷却支路和/或第二冷却支路。本发明实施例的技术方案降低了电动挖掘机散热系统散热成本，提高了散热效果。
Heat dissipation system and method of electric excavator and electric excavator
一种电动挖掘机散热系统、方法及电动挖掘机
ZHOU JINFENG (author) / ZHANG BOHONG (author) / GUO WEIFU (author) / PENG XINGDE (author) / OH JI-ROK (author)
2024-01-23
Patent
Electronic Resource
Chinese
IPC:
E02F
Baggern
,
DREDGING
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