Device for cooling a battery
AssigneeMahle International GmbH
InventorMarkus Wesner
Life of this patent
Estimating the term…
Abstract
A device for temperature-controlling a vehicle battery in an electric or hybrid vehicle may include a coolant circuit, a refrigerant circuit, and a first valve device. The vehicle battery, a coolant cooler, a coolant pump, and a chiller may be arranged in the coolant circuit. The chiller, a compressor, a condenser, and an evaporator may be arranged in the refrigerant circuit. The first valve device may be arranged indirectly on the chiller. A coolant flow may be dividable between the chiller and the coolant cooler via the first valve device.
Claims19
A device for temperature-controlling a vehicle battery in an electric or hybrid vehicle, comprising:
- a coolant circuit, in which the vehicle battery, a coolant cooler, a coolant pump, and a chiller are arranged;
- a refrigerant circuit, in which the chiller, a compressor, a condenser, and an evaporator are arranged;
- and
- a first valve device arranged one of (i) in the chiller and (ii) on the chiller, via which a coolant flow is dividable between the chiller and the coolant cooler;
- wherein the first valve device is structured as a thermostat valve and includes a control piston;
- and
- wherein the control piston includes an expansion element structured and arranged to adjust a position of the control piston in a temperature-dependent manner.
An electric or hybrid vehicle, comprising a vehicle battery, a device for temperature-controlling the vehicle battery, a passenger compartment, and an air conditioning system for air conditioning the passenger compartment, the device including:
- a coolant circuit, in which the vehicle battery, a coolant cooler, a coolant pump, and a chiller are arranged;
- a refrigerant circuit, in which the chiller, a compressor, a condenser, and an evaporator are arranged;
- a first valve device arranged one of (i) in the chiller and (ii) on the chiller, via which a coolant flow is dividable between the chiller and the coolant cooler;
- wherein the evaporator is part of the air conditioning system;
- wherein the first valve device is structured as a thermostat valve and includes a control piston;
- and
- wherein the control piston includes an expansion element structured and arranged to adjust a position of the control piston in a temperature-dependent manner.
A device for temperature-controlling a vehicle battery in an electric or hybrid vehicle, comprising:
- a coolant circuit, in which the vehicle battery, a coolant cooler, a coolant pump, and a chiller are arranged;
- a refrigerant circuit, in which the chiller, a compressor, a condenser, and an evaporator are arranged;
- a first valve device arranged one of (i) in the chiller and (ii) on the chiller, via which a coolant flow is dividable between the chiller and the coolant cooler;
- and
- wherein the first valve device includes:
- a first coolant space;
- a second coolant space;
- a battery side coolant inlet in fluid communication with the first coolant space;
- a battery side coolant outlet in fluid communication with the second coolant space;
- a coolant cooler side coolant inlet in fluid communication with the second coolant space;
- a coolant cooler side coolant outlet in fluid communication with the first coolant space;
- a chiller side coolant inlet in fluid communication with the second coolant space;
- a chiller side coolant outlet in fluid communication with the first coolant space;
- and
- a control piston disposed at least partially in the first coolant space.
Dependencies are inferred from the claim text.