The invention discloses a battery pack temperature protection device of a new energy automobile, and aims to solve the technical problem that in the prior art, when the temperature of an automobile battery pack is too high, a circuit cannot be powered off in time. Comprising a shell, a battery pack body is arranged in the shell, a relay is installed in an inner cavity of the shell, wires are connected between the relay and the battery pack body, a connector is fixedly installed on the side wall of the shell, a protective shell is fixedly connected to the bottom face of the inner cavity of the shell, and the wires penetrate through the protective shell and are connected with the connector. According to the invention, memory metal is adopted as a control material, when the temperature of the battery pack is about to exceed a safety threshold value, a power supply circuit can be directly cut off, and the temperature of the battery pack can be controlled to be higher than the safety threshold value, so that the temperature of the battery pack can be controlled to be higher than the safety threshold value. And the phenomenon of sprint or spontaneous combustion caused by overhigh temperature of the battery pack during continuous power supply is avoided.
本发明公开了新能源汽车的电池包温度保护装置,该温度保护装置旨在解决现有技术下汽车电池包温度过高时,不能及时将电路进行断电处理的技术问题。包括外壳,所述外壳内设置有电池包主体,所述外壳内腔安装有继电器,所述继电器与电池包主体之间连接有导线,所述外壳侧壁固定安装有接头,所述外壳内腔底面固定连接有保护壳,所述导线均贯穿保护壳并与接头连接,所述导线位于保护壳内腔部分为断开设置,所述导线相对的端面均固定连接有导通块,所述导通块之间设置有铜块,本发明采用记忆金属作为控制材料,当电池包的温度即将超出安全阈值时,可直接截断供电电路,避免电池包在持续供电时温度过高,造成短跑或自燃的现象。
Battery pack temperature protection device of new energy automobile
新能源汽车的电池包温度保护装置
2024-06-28
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY |
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