HEAT TRANSFER DEVICE FOR TEMPERING BATTERIES AND COMPONENTS OF THE POWER ELECTRONICS

• US 20200132387A1
• Filed: 10/24/2019
• Published: 04/30/2020
• Est. Priority Date: 10/30/2018
• Status: Active Grant

• Current Assignee: Hanon Systems (Hahn & Co. Auto Holdings Co. Ltd.)
• Original Assignee: Hanon Systems (Hahn & Co. Auto Holdings Co. Ltd.)
• Inventors: Girmscheid, Felix, Schoemaker, Gero, Mielenhausen, Mario
• Granted Patent: US 11,835,303 B2
• Time in Patent Office: Days
• CPC Class Codes: F28D 1/0308 the conduits being formed by paired plates touching each other F28D1/0358 takes precedence
• CPC Class Codes: F28D 1/0417 with particular circuits for the same heat exchange medium, e.g. with the heat exchange medium flowing through sections having different heat exchange capacities or for heating/cooling the heat exchange medium at different temperatures
• CPC Class Codes: F28D 1/05391 with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
• CPC Class Codes: F28D 2021/0029 Heat sinks
• CPC Class Codes: F28D 2021/008 for vehicles for aircrafts F28D2021/0021
• CPC Class Codes: F28D 21/00 Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
• CPC Class Codes: F28D 9/005 the plates having openings therein for both heat-exchange media
• CPC Class Codes: 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
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: H01M 10/6554 Rods or plates
• CPC Class Codes: H01M 10/6556 Solid parts with flow channel passages or pipes for heat exchange closed pipes H01M10/6552
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A device for the transfer of heat to control the temperature of batteries and components of the power electronics, particularly for an electric vehicle or a hybrid vehicle, includes an inlet for a fluid and an outlet for the fluid as well as at least two fluid-conducting plate-shaped heat exchanger elements, of which a first plate-shaped heat exchanger element and a second plate-shaped heat exchanger element have planar contact with one another for the transfer of heat. In doing so, the second plate-shaped heat exchanger element is formed for planar contact with a heat transfer surface of a battery and/or a component of power electronics. At least one fluid connection is formed between the first plate-shaped heat exchanger element and the second plate-shaped heat exchanger element such that fluid escaping from the first plate-shaped heat exchanger element can flow through the second plate-shaped heat exchanger element.

Claims

1. A device for transferring heat to control the temperature of batteries and components of power electronics, comprising:

an inlet for a fluid and an outlet for the fluid; and

at least two fluid-conducting plate-shaped heat exchanger elements, of which a first plate-shaped heat exchanger element and a second plate-shaped heat exchanger element have planar contact with one another for the transfer of heat, wherein the second plate-shaped heat exchanger element is formed for planar contact with a heat transfer surface of a battery and/or of a component of power electronics, wherein at least one fluid connection is formed between the first plate-shaped heat exchanger element and the second plate-shaped heat exchanger element such that fluid escaping from the first plate-shaped heat exchanger element can flow through the second plate-shaped heat exchanger element.

2. The device according to claim 1, wherein the inlet for the fluid is formed at the first plate-shaped heat exchanger element and the outlet for the fluid is formed at the second plate-shaped heat exchanger element.

3. The device according to claim 2, wherein the inlet of the fluid into the first plate-shaped heat exchanger element is formed so as to lead through the second plate-shaped heat exchanger element.

4. The device according to claim 1, wherein the inlet of the fluid and the outlet of the fluid are arranged on a common side, particularly in the area of a narrow side, of the plate-shaped heat exchanger elements having planar contact with one another.

5. The device according to claim 1, wherein the first plate-shaped heat exchanger element and the second plate-shaped heat exchanger element are formed from three profiled plates, which are flatly arranged with respect to one another and are connected to one another at least on the edge in a fluid-tight manner, wherein the profiles of the plates form hollow cavities as fluid flows between the plates.

6. The device according to claim 5, wherein the first plate-shaped heat exchanger element is formed from a first plate and a second plate, and the second plate-shaped heat exchanger element is formed from the second plate and a third plate.

7. The device according to claim 1, wherein the fluid connection between the flatly contacted plate-shaped heat exchanger elements is formed such that the fluid within a fluid flow of the first plate-shaped heat exchanger element is directed in counterflow opposite a fluid flow in the second plate-shaped heat exchanger element.

8. The device according to claim 1, wherein the fluid connection between the flatly contacted plate-shaped heat exchanger elements is formed such that the fluid within a fluid flow in the first plate-shaped heat exchanger element is directed in parallel flow opposite a fluid flow in the second plate-shaped heat exchanger element.

9. The device according to claim 1, wherein a fluid flow in the first plate-shaped heat exchanger element and a fluid flow in the second plate-shaped heat exchanger element are each formed as a channel, which has a U shape.

10. The device according to claim 1, wherein the at least one fluid connection between the flatly contacted plate-shaped heat exchanger elements is formed in the shape of a slot formed on the sides facing inward between the flatly contacted plate-shaped heat exchanger elements, respectively, wherein the slot extends over the entire width of a fluid flow.

11. The device according to claim 10, wherein at least one throttle element is arranged in the slot-shaped fluid connection.

12. The device according to claim 1, wherein multiple fluid connections are distributed over the common contact surface between the first plate-shaped heat exchanger element and the second plate-shaped heat exchanger element such that the fluid overflows selectively from the first plate-shaped heat exchanger element into the second plate-shaped heat exchanger element.

13. The device according to claim 1, wherein a fluid flow in the first plate-shaped heat exchanger element is formed with turbulators and/or conductive elements such that a uniform distribution of the fluid is ensured in the first plate-shaped heat exchanger element.

14. The device according to claim 13, wherein a fluid flow in the second plate-shaped heat exchanger element is formed with turbulators and/or conductive elements such that a uniform distribution of the fluid is ensured in the second plate-shaped heat exchanger element.

15. The device according to claim 1, wherein the second plate-shaped heat exchanger element is formed with the heat transfer surface of a battery and/or of a component of power electronics through bonding, pressing, soldering, or sintering.

16. The device according to claim 1, wherein the inlet and the outlet for the fluid are arranged on a contact side with the heat transfer surface of a battery and/or of a component of power electronics at the second plate-shaped heat exchanger element.

17. The device according to claim 1, wherein the inlet and the outlet for the fluid are arranged on a side facing away from the heat transfer surface of a battery and/or of a component of power electronics at the first plate-shaped heat exchanger element.

18. The device according to claim 1, wherein a fluid flow in the first plate-shaped heat exchanger element and a fluid flow in the second plate-shaped heat exchanger element are each formed as a channel, which has a zigzag shape.

19. The device according to claim 1, wherein the at least two fluid-conducting plate-shaped heat exchanger elements are each formed with at least two flat tubes, wherein flat tubes of the first plate-shaped heat exchanger element and flat tubes of the second plate-shaped heat exchanger element have planar contact with one another for the transfer of heat.

20. The device according to claim 19, wherein the fluid can flow through the flat tubes respectively arranged with planar contact with one another in counterflow.

21. The device according to claim 19, wherein the at least two fluid-conducting plate-shaped heat exchanger elements can each be extended with at least one further flat tube.