Safety device of battery temperature control system

摘要

To provide a safety device of a battery temperature control system for an EV or an HEV capable of preventing an electric shock due to the electrical conduction across terminals of batteries in the event of a vehicle collision.;A safety device used in a temperature control system of a battery for a vehicle, including a first heat exchange unit (1) which includes a first heat exchange section (2) filled with a liquid-state heat medium into a pipe (3) and exchanging heat with a battery (B) by the heat medium, and a second heat exchange unit (20) which includes a second heat exchange section (21) heating or cooling the heat medium subjected to heat exchange in the first heat exchange section (2), wherein the heat medium existing in the first heat exchange section is discharged to the outside of the first heat exchange section, for example, under a predetermined condition such as a vehicle collision.

主权项

1. A safety device of a battery temperature control system comprising:
a first heat exchange unit (1) which includes a first heat exchange section (2) filled with liquid-state heat medium (40) into a pipe (3) and exchanging heat with a battery (B) by the heat medium (40); a second heat exchange unit (20) which includes a second heat exchange section (21) heating or cooling the heat medium (40) subjected to heat exchange in the first heat exchange section (2); a collision detecting unit (300) which detects an impact in the event of a vehicle collision and generates an impact signal; a compressed gas supply device (400) which is connected to the pipe (3) of the first heat exchange unit (1) and discharges a compressed gas into the pipe (3) when the impact signal is generated; and a discharge portion (9) which is connected to the pipe (3) of the first heat exchange unit (1) and is able to discharge the heat medium (40) charged into the pipe (3) to the outside of the pipe (3), the heat medium (40) existing in the first heat exchange section (2) being discharged to the outside of the first heat exchange section (2) under a predetermined condition which is when the collision detecting unit (300) detects the impact, the heat medium (40) existing in the first heat exchange section (2) being discharged from the discharge portion (9) to the outside of the pipe (3) by the compressed gas discharged from the compressed gas supply device (400).