# US 11,993,156 B2 · Temperature-control device for an energy store

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- Number: US 11,993,156 B2
- Document ID: US11993156B2
- Status: Granted
- Kind: B2
- Application number: 17/725,545
- Filed: 2022-04-20
- Published: 2022-10-27
- Granted: 2024-05-28
- Earliest claimed: 2021-04-21
- Assignees: Mahle International GmbH
- Applicants: Mahle International GmbH
- Inventors: Stefan Jauss; Thomas Kalmbach; Hans-Martin Ruppert; Dietmar Wilhelm
- Web page: https://patentgrep.com/patent/US11993156B2

## CPC

- B60L 3/0046: {relating to electric energy storage systems, e.g. batteries or capacitors}
- B60L 3/0007: {Measures or means for preventing or attenuating collisions}
- B60L 58/26: by cooling
- F28D 9/0093: {Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids}
- H01M 10/613: Cooling or keeping cold
- H01M 10/615: Heating or keeping warm
- H01M 10/625: Vehicles
- H01M 10/63: Control systems (charging or discharging in response to temperature H01M10/44 {, H01M10/443}; measurement of temperature H01M10/48 {, H01M10/486})
- H01M 10/655: Solid structures for heat exchange or heat conduction
- H01M 10/6556: Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552)
- H01M 10/6568: characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
- B60L 2240/545: Temperature
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- Y02E 60/10: Energy storage using batteries
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- F28D: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT (fluid heaters having heat generating means and heat transferring means F24H; furnaces F27; details of heat-exchange apparatus of general)
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A temperature-control device of an energy store, e.g., in a motor vehicle, is disclosed. The temperature-control device includes a first circuit, in which a first heat transfer unit and the energy store to be temperature-controlled are arranged and connected to one another in a heat-transferring manner via a first heat transfer medium, and a second circuit, in which a second heat transfer unit and the first heat transfer unit are arranged and connected to one another in a heat-transferring manner via a second heat transfer medium. In at least one line of the first circuit and/or at least one line of the second circuit a predetermined breaking point and/or a predetermined bending point is arranged which upon a predefined force effect interrupts a flow of fluid therethrough.

## Claims

### Claim 1

A temperature-control device of an energy store, comprising:
a first circuit, in which a first heat transfer unit and the energy store to be temperature-controlled are arranged and connected to one another in a heat-transferring manner via a first heat transfer medium,
a second circuit, in which a second heat transfer unit and the first heat transfer unit are arranged and connected to one another in a heat-transferring manner via a second heat transfer medium,
wherein in at least one of at least one line of the first circuit and at least one line of the second circuit at least one of a predetermined breaking point and a predetermined bending point is arranged which upon a predefined force effect interrupts a flow of at least one of the first heat transfer medium and the second heat transfer medium in the respectively associated circuit, and
wherein the predetermined breaking point provides a break point with a reduced cross section relative to the reminder of the at least one line, and wherein the predetermined bending point provides a bend in a straight portion of the at least one line.

### Claim 2 (depends on 1)

The temperature-control device according to claim 1, wherein the first heat transfer unit is an oil cooler.

### Claim 3 (depends on 1)

The temperature-control device according to claim 1, wherein the first heat transfer medium is a dielectric fluid.

### Claim 4 (depends on 1)

The temperature-control device according to claim 1, wherein the second heat transfer unit is a coolant radiator.

### Claim 5 (depends on 1)

The temperature-control device according to, claim 1, wherein the second heat transfer medium is an electrically conductive fluid.

### Claim 6 (depends on 1)

The temperature-control device according to claim 1, wherein the predetermined breaking point comprises a material thinning.

### Claim 7 (depends on 1)

The temperature-control device according to claim 1, wherein the predetermined bending point comprises a constriction, a notch or a predefined kink in the at least one line.

### Claim 8 (depends on 1)

The temperature-control device according to claim 1, wherein the at least one of the at least one line in the first circuit and the at least one line in the second circuit is composed of plastic or of metal.

### Claim 9 (depends on 1)

The temperature-control device according to claim 1, wherein the energy store comprises energy storage cells that are in direct contact with the first heat transfer medium.

### Claim 10

A motor vehicle, comprising: an energy store and a temperature-control device for temperature-controlling the energy store, the temperature-control device including:
a first circuit including a first heat transfer unit and the energy store arranged in the first circuit and connected to one another in a heat-transferring manner via a first heat transfer medium;
a second circuit including a second heat transfer unit and the first heat transfer unit arranged in the second circuit and connected to one another in a heat-transferring manner via a second heat transfer medium;
wherein in at least one of at least one line of the first circuit and at least one line of the second circuit at least one of a predetermined breaking point and a predetermined bending point is arranged, wherein the at least one of the predetermined breaking point and the predetermined bending point upon a predefined force effect interrupts a flow of at least one of the first heat transfer medium and the second heat transfer medium in the respectively associated circuit; and
wherein the predetermined breaking point provides a break point with a reduced cross section relative to the reminder of the at least one line, and wherein the predetermined bending point provides a bend in a straight portion of the at least one line.

### Claim 11 (depends on 10)

The motor vehicle according to claim 10, wherein the energy store comprises energy storage cells that are in direct contact with the first heat transfer medium.

### Claim 12 (depends on 11)

The motor vehicle according to claim 11, wherein the first heat transfer medium is a dielectric fluid.

### Claim 13 (depends on 12)

The motor vehicle according to claim 12, wherein the dielectric fluid is oil.

### Claim 14 (depends on 10)

The motor vehicle according to claim 10, wherein the first heat transfer unit is an oil cooler.

### Claim 15 (depends on 10)

The motor vehicle according to claim 10, wherein the second heat transfer unit is a coolant radiator.

### Claim 16 (depends on 10)

The motor vehicle according to claim 10, wherein the second heat transfer medium is an electrically conductive fluid.

### Claim 17 (depends on 10)

The motor vehicle according to claim 10, wherein the electrically conductive fluid is a glycol-water mixture.

### Claim 18 (depends on 10)

The motor vehicle according to claim 10, wherein the predetermined breaking point includes a material thinning.

### Claim 19 (depends on 10)

The motor vehicle according to claim 10, wherein the predetermined bending point includes a constriction, a notch, or a predefined kink in the at least one line.

### Claim 20 (depends on 10)

The motor vehicle according to claim 10, wherein the at least one of the at least one line in the first circuit and the at least one line in the second circuit is composed of plastic or of metal.