Device for the temperature of an energy storage device

Patent metadata

Field	Value
Publication number	US-11837708-B2
Application number	US-202017070902-A
Country	US
Kind code	B2
Filing date	Oct 14, 2020
Priority date	Oct 15, 2019
Publication date	Dec 5, 2023
Grant date	Dec 5, 2023

Abstract

A temperature control device of a vehicle may include an energy storage device, a first coolant circuit configured to temperature control the energy storage device, a refrigerant circuit, at least one refrigerant evaporator, a second coolant circuit, a refrigerant condenser, and a coolant cooler for transferring heat to an exterior environment. At least one section of the first coolant circuit and at least one section of the second coolant circuit may be defined by a shared circuit section. The coolant cooler may be fluidically connectable with at least one of the first coolant circuit and the second coolant circuit via the shared circuit section. The first coolant circuit may include a bypass for at least partially bypassing the coolant cooler. The first coolant circuit may include a valve device structured and arranged to distribute a first coolant flow to at least one of the shared circuit section and the bypass.

First claim

The invention claimed is:

1. A temperature control device of a vehicle, comprising:
an energy storage device configured to provide an electrical energy supply to at least one of an electric drive unit and an electric consumer of the vehicle;
a first coolant circuit configured to temperature control the energy storage device;
a refrigerant circuit couplable with the first coolant circuit in a heat-transferring manner via at least one refrigerant evaporator;
a second coolant circuit couplable with the refrigerant circuit in a heat-transferring manner via a refrigerant condenser, which is coolable via a coolant;
a coolant cooler for transferring heat between an exterior environment and at least one of the first coolant circuit and the second coolant circuit;
at least one partial section of the first coolant circuit and at least one partial section of the second coolant circuit defined by a shared circuit section;
wherein the coolant cooler is arranged in the shared circuit section;
wherein the coolant cooler is fluidically connectable with at least one of the first coolant circuit and the second coolant circuit via the shared circuit section;
wherein the first coolant circuit includes a bypass for at least partially bypassing the coolant cooler;
wherein the first coolant circuit includes a valve structured and arranged to distribute a first coolant flow to at least one of the shared circuit section and the bypass; and
wherein the valve includes (i) a first outlet connected to the coolant chiller and (ii) a second outlet connected to the bypass.

2. The device according to claim 1 , wherein at least one of:
when in a first operation configuration, the first coolant circuit and the refrigerant circuit are substantially decoupled with respect to a heat transfer via the at least one refrigerant evaporator; and
when in a second operation configuration, the first coolant circuit and the refrigerant circuit are thermally coupled for the heat transfer from the first coolant circuit to the refrigerant circuit via the at least one refrigerant evaporator.

3. The device according to claim 1 , wherein, when in a first operation configuration:
the first coolant circuit and the refrigerant circuit are substantially decoupled with respect to a heat transfer via the at least one refrigerant evaporator; and
the valve is disposed in at least one of:
an open position in which the first coolant flow of the first coolant circuit flows entirely through the shared circuit section;
at least one intermediate position in which the first coolant flow of the first coolant circuit flows partially through the bypass and partially through the shared circuit section; and
a bypass position in which the first coolant flow of the first coolant circuit flows entirely through the bypass.

4. The device according to claim 1 , wherein, when in a second operation configuration:
the first coolant circuit and the refrigerant circuit are coupled in a heat-transferring manner with respect to a heat transfer via the at least one refrigerant evaporator;
the valve is in a bypass position in which the first coolant flow of the first coolant circuit flows entirely through the bypass such that the first coolant circuit and the second coolant circuit are substantially decoupled from one another fluidically;
the first coolant circuit and the refrigerant circuit are thermally coupled for the heat transfer from the first coolant circuit to the refrigerant circuit via the at least one refrigerant evaporator;
the refrigerant circuit and the second coolant circuit are thermally coupled for a heat transfer from the refrigerant circuit to the second coolant circuit via the refrigerant condenser; and
the second coolant circuit and the coolant cooler are thermally coupled for a heat transfer from the second coolant circuit to the exterior environment via the coolant cooler.

5. The device according to claim 1 , wherein the refrigerant circuit includes at least one of:
an evaporator for temperature controlling a vehicle interior air flow; and
an interior heat exchanger for pre-cooling a fluid refrigerant flow of the refrigerant circuit.

6. The device according to claim 1 , wherein, when in a first operation configuration, (i) the first coolant circuit and the refrigerant circuit are substantially decoupled with respect to a heat transfer via the at least one refrigerant evaporator, and (ii) at least one of:
an evaporator is integrated into the refrigerant circuit for temperature controlling a vehicle interior air flow;
the refrigerant circuit and the second coolant circuit are thermally coupled for a heat transfer from the refrigerant circuit to the second coolant circuit via the refrigerant condenser;
the first coolant circuit, the second coolant circuit, and the coolant cooler are thermally coupled for a heat transfer from the first coolant circuit and from the second coolant circuit to the exterior environment via the coolant cooler; and
the refrigerant circuit and the second coolant circuit are thermally decoupled for preventing a heat transfer from the refrigerant circuit to the second coolant circuit via the refrigerant condenser.

7. The device according to claim 5 , wherein:
the refrigerant circuit includes the evaporator; and
when in a second operation configuration, (i) the first coolant circuit and the refrigerant circuit are thermally coupled for a heat transfer from the first coolant circuit to the refrigerant circuit via the at least one refrigerant evaporator, and (ii) the evaporator is one of:
integrated into the refrigerant circuit;
separated fluidically from the refrigerant circuit.

8. The device according to one of claim 1 , wherein the refrigerant circuit includes an interior heat exchanger through which a vaporous refrigerant flow of the refrigerant circuit is flowable for pre-cooling a fluid refrigerant flow of the refrigerant circuit.

9. The device according to claim 1 , wherein at least one of:
the first coolant circuit includes a first coolant conveyor for conveying the first coolant flow in the first coolant circuit along a conveying direction;
the second coolant circuit includes a second coolant conveyor for conveying a second coolant flow in the second coolant circuit along a conveying direction; and
the refrigerant circuit includes a refrigerant conveyor for conveying a refrigerant flow in the refrigerant circuit along a conveying direction.

10. A vehicle, comprising:
at least one of an electric drive unit and an electric consumer;
an energy storage device configured to provide an electrical energy supply to the at least one of the electric drive unit and the electric consumer;
a temperature control device configured to temperature control the energy storage device;
the temperature control device including:
a first coolant circuit configured to temperature control the energy storage device;
a refrigerant circuit couplable with the first coolant circuit in a heat-transferring manner via at least one refrigerant evaporator;
a second coolant circuit couplable with the refrigerant circuit in a heat-transferring manner via a refrigerant condenser, which is coolable via a coolant;
a coolant cooler for transferring heat between an exterior environment and at least one of the first coolant circuit and the second coolant circuit;
at least one partial section of the first coolant circuit and at least one partial section of the second coolant circuit defined by a shared circuit section;
wherein the coolant cooler is arranged in the shared circuit section;
wherein the coolant cooler is fluidically connectable with at least one of the first coolant circuit and the second coolant circuit via the shared ci

Assignees

• Mahle Int Gmbh

Inventors

• Boger Markus
• Lindauer Sascha

Classifications

• H01M10/6568 Primary

  characterised by flow circuits, e.g. loops, located externally to the cells or cell casings · CPC title

• B60H1/00278 Primary

  for the battery · CPC title

• H01M10/625

  Vehicles · CPC title

• H01M10/6552

  Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes · CPC title

• H01M10/6569

  Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation (heat pipes H01M10/6552) · CPC title