A liquid-cooled power battery immersed in the outer bottom of the battery box
A technology for power batteries and battery boxes, which is applied in the field of power battery thermal management systems, can solve problems such as increased thermal resistance and complex thermal management structures, and achieve high thermal efficiency, high safety, and good economy
Active Publication Date: 2021-09-21
开沃新能源汽车集团股份有限公司
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Problems solved by technology
The thermal management of the side of the battery cell belongs to the thermal management in the battery box, and its thermal management structure is more complicated. In the case of changing vehicle operating environments, the thermal resistance of the contact interface between the side of the battery cell and the heat exchange system will gradually increase over time.
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Embodiment Construction
[0015] The present invention will be further described below in conjunction with the accompanying drawings.
[0016] The submerged liquid-cooled power battery on the outer bottom of the battery box of the present invention includes a liquid inlet joint 1, a liquid outlet joint 2, a sealing support plate 3, a bolt hole 4, a single battery cell 5, a flow partition plate 6, a shunt type reinforcement rib 7, a reinforcement Rib runner 8, flow divider flow channel 9, liquid outlet 14, liquid inlet 15, seal bolt hole 16 of flow divider, and sealing platform 17 on the bottom surface of the battery box. The liquid inlet joint 1 and the liquid outlet joint 2 are located above the sealing support plate 3, the liquid inlet joint 1 is used for connecting with the inlet pipeline of the liquid heat management medium, and the liquid outlet joint 2 is used for connecting with the outlet pipeline of the liquid heat management medium. The sealing support plate 3 is combined with the bottom of t...
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The invention discloses a submerged liquid-cooled power battery on the outer bottom of a battery box, which includes a liquid inlet joint, a liquid outlet joint, a sealing support plate, bolt holes, a single battery cell, a flow divider, a shunt type reinforcing rib, and a reinforcing rib flow channel , flow channel of flow partition, liquid outlet, liquid inlet, sealing bolt holes of flow partition, and sealing platform on the bottom of the battery box. The liquid inlet joint and liquid outlet joint are located above the sealing support plate. The liquid outlet joint is connected to the outlet pipeline of the liquid heat management medium. The sealing support plate is combined with the bottom of the power battery box to form a sealed cavity. There are bolt holes around the sealing support plate, and the flow divider is located at the bottom of the battery box. The fluid on the bottom surface of the battery box is divided into liquid inlet and outlet. The shunt reinforcement rib is located at the bottom of the battery box and is arranged vertically with the partition plate. Flow board. The invention can realize the flexible configuration of the power battery with heat pipe and without heat management.
Description
Technical field: [0001] The invention relates to a power battery thermal management system, in particular to a submerged liquid-cooled power battery on the outer bottom of a battery box. Background technique: [0002] As one of the core components of electric vehicles, power batteries are inseparable from their performance and battery thermal management. The purpose of power battery thermal management is to take appropriate measures to make the single battery work in a suitable temperature range and ensure the uniform temperature distribution of the battery pack. As one of the battery thermal management methods, the liquid medium thermal management method has good heat exchange efficiency, high sealing level of the battery box, and can realize heating and cooling of the battery, so it is generally recognized by everyone and widely used. [0003] The thermal management of power battery liquid medium can be divided into many forms. According to the liquid medium, it can be d...
Claims
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IPC IPC(8): H01M50/209H01M50/244H01M50/249H01M10/613H01M10/6568
CPCH01M10/613H01M10/6568H01M2220/20H01M50/20Y02E60/10
Inventor 黄永阔
Owner 开沃新能源汽车集团股份有限公司