Vehicle-body structure with heat exchanger
A vehicle-body structure may include a floor panel, a dash panel extending upward from a vehicle front portion of the floor panel and partitioning a vehicle front portion of an occupant space, a cooler disposed on a vehicle front side of the dash panel, a control device disposed in the occupant space, and a supply pipe through which a heat exchange medium subjected to heat exchange at a heat exchanger is supplied to the control device. The heat exchanger may be closer to the control device than a powertrain PT mounted on an automobile.
1. A vehicle-body structure provided in an automobile, the vehicle-body structure comprising:
a floor panel extending in a vehicle front-rear direction;
a dash panel extending upward from a front portion of the floor panel and partitioning a vehicle front portion of an occupant space;
a heat exchanger disposed on a vehicle front side of the dash panel;
a controller that is disposed in the occupant space and controls a control target unit mounted on the automobile; and
a supply pipe through which a heat exchange medium subjected to heat exchange at the heat exchanger is supplied to the controller, wherein
the heat exchanger is closer to the controller than a powertrain mounted on the automobile.
2. The vehicle-body structure according to claim 1 , further comprising an air-conditioner that sends air-conditioned air to the occupant space, wherein
the heat exchanger is part of the air-conditioner and cools the air-conditioned air.
3. The vehicle-body structure according to claim 2 , further comprising:
a center frame disposed to be higher than and away from the floor panel at a vehicle-width-direction central portion of the occupant space and extending in the vehicle front-rear direction; and
a connecting structure extending upward from the floor panel on a vehicle front side of the controller, having an upper portion fixed to the center frame, and connecting the center frame to the floor panel, wherein
the connecting structure includes a left-side structure on a vehicle-width-direction left side and a right-side structure on a vehicle-width-direction right side, the left-side structure and the right-side structure being at least partially separated from each other in a vehicle width direction, and
the supply pipe is disposed between the left-side structure and the right-side structure.
4. The vehicle-body structure according to claim 3 ,
wherein the center frame includes a front-side frame structure extending in the front-rear direction, a rear-side frame structure disposed on the vehicle rear side of the front-side frame structure and extending toward the rear side, and a connection structure connecting a rear portion of the front-side frame structure and a front portion of the rear-side frame structure.
5. The vehicle-body structure according to claim 4 ,
wherein the front-side frame structure is positioned higher than the rear-side frame structure relative to the floor panel.
6. The vehicle-body structure according to claim 3 , wherein
a front portion of the center frame is constituted by a left-side frame structure and a right-side frame structure provided at an interval from each other in the vehicle width direction,
an upper portion of the left-side structure of the connecting structure is fixed to the left-side frame structure, and
an upper portion of the right-side structure of the connecting structure is fixed to the right-side frame structure.
7. The vehicle-body structure according to claim 6 , further comprising:
a traveling motor;
a battery that supplies electric power to the traveling motor; and
a discharge pipe through which a heat exchange medium supplied to the controller is discharged and supplied to the battery.
8. The vehicle-body structure according to claim 6 , wherein the controller is arranged at a lower position than the front portion of the center frame in the occupant space.
9. The vehicle-body structure according to claim 3 , further comprising:
a traveling motor;
a battery that supplies electric power to the traveling motor; and
a discharge pipe through which a heat exchange medium supplied to the controller is discharged and supplied to the battery.
10. The vehicle-body structure according to claim 2 , further comprising:
a center frame having a hollow shape, disposed to be higher than and away from the floor panel at a vehicle-width-direction central portion of the occupant space, and extending in the vehicle front-rear direction; and
an air introducing duct that provides communication between a vent portion provided to the air-conditioner and inside of the center frame and through which air-conditioned air vented out of the vent portion is introduced into the center frame, wherein
the air introducing duct is disposed at a higher position than the controller.
11. The vehicle-body structure according to claim 10 , further comprising:
a traveling motor;
a battery that supplies electric power to the traveling motor; and
a discharge pipe through which a heat exchange medium supplied to the controller is discharged and supplied to the battery.
12. The vehicle-body structure according to claim 11 , wherein
an up-down direction central portion of the heat exchanger is arranged at a higher position than a rotation center of the front-side traveling motor.
13. The vehicle-body structure according to claim 11 , wherein the heat exchange medium is further supplied to cool the traveling motor.
14. The vehicle-body structure according to claim 10 ,
wherein the air introducing duct is a structure that constitutes part of the center frame.
15. The vehicle-body structure according to claim 2 , further comprising:
a traveling motor;
a battery that supplies electric power to the traveling motor; and
a discharge pipe through which a heat exchange medium supplied to the controller is discharged and supplied to the battery.
16. The vehicle-body structure according to claim 15 , wherein the supply pipe and the discharge pipe extend in the front-rear direction below the air-conditioner.
17. The vehicle-body structure according to claim 1 , further comprising:
a traveling motor;
a battery that supplies electric power to the traveling motor; and
a discharge pipe through which a heat exchange medium supplied to the controller is discharged and supplied to the battery.
18. The vehicle-body structure according to claim 1 , wherein the supply pipe extends through the dash panel.
19. The automobile comprising the vehicle-body structure according to claim 1 .
20. The automobile of claim 19 , wherein the automobile is an electric vehicle.