Temperature control device for the temperature control of an electrical energy store for a motor vehicle, and motor vehicle

Patent metadata

Field	Value
Publication number	US-12463272-B2
Application number	US-202217968032-A
Country	US
Kind code	B2
Filing date	Oct 18, 2022
Priority date	Oct 19, 2021
Publication date	Nov 4, 2025
Grant date	Nov 4, 2025

Abstract

A temperature control device for temperature control of an electrical energy store for a motor vehicle includes a feed line element which is flushable by a temperature control fluid for the temperature control of the energy store, and which constitutes a first line element via which the temperature control fluid flowing in the feed line element can be admitted to the energy store, and includes a return line element which is flushable by the temperature control fluid, and which constitutes a second line element via which temperature control fluid flowing in the energy store can be evacuated from the energy store. The line elements are arranged in a housing which is common to the line elements, in which a housing bypass line element which is fluidically connected or connectable to the line elements is arranged, by way of which the energy store can be bypassed by the temperature control fluid.

First claim

What is claimed is:

1 . A temperature control device for temperature control of an electrical energy store for a motor vehicle, the temperature control device comprising:
a feed line element which is flushable by a temperature control fluid for the temperature control of the energy store, and via which the temperature control fluid flowing in the feed line element can be admitted to the energy store, and a return line element which is flushable by the temperature control fluid, and via which temperature control fluid flowing in the energy store can be evacuated from the energy store, wherein: the feed line element and the return line element are arranged in a housing which is common to the feed line element and the return line element, and in which housing a bypass line element which is fluidically connected or connectable to the feed line element and the return line element is arranged, by way of which bypass line element the energy store can be bypassed by the temperature control fluid, and the feed line element, the return line element, the bypass line element, and the housing together form a standalone structural unit that is fitted independently of the energy store.

2 . The temperature control device according to claim 1 ,
wherein a bypass valve element is arranged in the housing, which bypass valve element is switchable between:
a supply state, in which the temperature control fluid flowing in the feed line element can be admitted via the feed line element to the energy store, and
a bypass state, in which the temperature control fluid flowing in the feed line element is tapped-off from the feed line element via the bypass valve element, admitted to the bypass line element and admitted via the bypass line element to the return line element, bypassing the energy store.

3 . The temperature control device according to claim 2 ,
wherein the bypass valve element is electrically switchable, at least from the supply state to the bypass state.

4 . The temperature control device according to claim 3 ,
wherein a temperature sensor is arranged in the housing and in the feed line element, by way of which temperature sensor a temperature of the temperature control fluid flowing in the feed line element is detectable.

5 . The temperature control device according to claim 4 ,
wherein the temperature sensor is arranged upstream or downstream of the bypass valve element.

6 . The temperature control device according to claim 1 ,
wherein a valve element is arranged in the housing and in the return line element, by way of which valve element a flow of the temperature control fluid from the return line element to the energy store is preventable.

7 . The temperature control device according to claim 6 ,
wherein the valve element is configured in a form of a spring-loaded non-return valve.

8 . The temperature control device according to claim 6 ,
wherein the valve element is switchable between: a connecting state, in which a first longitudinal region of the return line element, arranged upstream of the valve element in a direction of flow of the temperature control fluid flowing in the return line element, and thus flowing away from the energy store, is fluidically connected via the valve element to a second longitudinal region, arranged downstream of the first longitudinal region and downstream of the valve element, in the direction of flow of the temperature control fluid flowing in the return line element, and thus flowing away from the energy store, and an isolating state, in which the first longitudinal region and the second longitudinal region are fluidically isolated from each other by the valve element.

9 . The temperature control device according to claim 8 ,
wherein the valve element is mechanically, hydraulically or electrically switchable from the connecting state to the isolating state and/or from the isolating state to the connecting state.

10 . A motor vehicle comprising the temperature control device according to claim 1 .

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Allgaeuer Christian
• Glass Thomas
• Gruber Dominik
• Lichtenberger Alexander
• Pichlbauer Rene
• Siuka Andreas

Classifications

• H01M10/625

  Vehicles · CPC title

• B60L58/27

  by heating · CPC title

• B60L58/26 Primary

  by cooling · CPC title

• H01M10/486

  for measuring temperature · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title