Contemporary Amperex Technology Co., Ltd.

Contemporary Amperex Technology (hong Kong) Limited

Contemporary Amperex Technology Limited

Qing Li

Ruobo You

Haiming Qi

A liquid cooling unit includes a first flow divider/combiner, a second flow divider/combiner, a plate heat exchanger, a radiator and a heater. The plate heat exchanger, the radiator and the heater are connected in parallel between a flow dividing end of the flow divider/combiner and a flow combining end of the second flow divider/combiner. The flow dividing end of the first flow divider/combiner outputs a fluid into the plate heat exchanger, the radiator or the heater. The plate heat exchanger and the radiator cool the fluid, and the heater heats the fluid. The flow combining end of the second flow divider/combiner receives the fluid outputted by the plate heat exchanger, the radiator or the heater, and the flow dividing end of the second flow divider/combiner outputs the fluid to a battery for thermal management of the battery. The flow combining end of the first flow divider/combiner receives the fluid.

Liquid cooling unit

The present disclosure provides a battery unit, a battery module and a battery pack. A battery pack comprises: at least one battery module; and a heating film sheet directly or indirectly heating the at least one battery module. The heating film sheet comprises a heating core and two insulating films. The heating core generates heat when the heating core is electrified, and has: a wire connection region for electrically connecting with external wires; and a heating region electrically connecting with the wire connection region, rated heating powers of different parts of the heating region are different so as to meet demand for heat of each battery module in each of different regions of the at least one battery module when the at least one battery module is heated. The two insulating films respectively cover two sides of the heating core. In the battery pack, each battery module is heated by the heating film sheet, and the rated heating powers of the different parts of the heating region of the heating core are different, so the heat provided for each battery module in the different region of the battery pack can be determined according to the demand for heat of each battery module in the different region of the battery pack, and in turn it ensures that each battery module of the battery pack is heated uniformly by the heating film sheet.

Battery unit, battery module and battery pack

This application relates to a battery heating system integrated by two subsystems, a heating system branch and a battery pack system branch, the battery pack system branch includes a battery package and a plurality of relays, the battery package includes a plurality of battery modules and heating subsystems, the heating subsystem includes a plurality of heaters, the battery module is assembled with at least one heater, the heater is arranged at the bottom or side of the battery module. The battery heating system can satisfy two modes of driving-heating and parking-heating-charging, and provide experience of various modes to users; the installing location of the heater is various, assembling is simple and convenient, which is suitable for different application situations; the connecting manner of the circuit of the heating system is various, connection of the circuit is simple; which can reduce the non-uniformity of battery temperature caused by heating.

Battery heating system

The present invention provides a thermal management system of a power battery pack, including a heating branch, a cooling branch and a battery pack pipeline, the heating branch and the cooling branch are connected with the battery pack pipeline and are arranged in parallel and configured to enable switching, a first heat exchanger for absorbing heat from a cooling liquid pipe of an outer high-temperature device is arranged on the heating branch. The thermal management system of the battery pack provided by the present invention uses waste heat of the cooling liquid of other high-temperature devices on the electric vehicle to heat the battery pack, so as to avoid the problem of electric power consuming and cruising distance reduction. Meanwhile improving cooling efficiency of high-temperature devices, and then improve comprehensive energy utilization efficiency, and improve working condition of the whole vehicle, thereby improving comprehensive performance of the electric vehicle.

Thermal management system of battery pack

The present application relates to the field of battery technologies and, particularly, relates to a battery pack, which includes a battery box, a battery module and a liquid cooling pipe are arranged inside the battery box and the liquid cooling pipe is arranged at bottom of the battery module, a moisture absorbing area is arranged inside the battery box and the moisture absorbing area is configured to absorb inner moisture of the battery box. The present application has the following beneficial effects: the battery box of the present application adopts a passive moisture-removing function and achieves controlling of the air humidity in the battery box, thereby guaranteeing the reliability of the battery system, and reducing the risk of failure of the electric components.

Growing community of inventors

Ningde, China

Qing Li