POWER ELECTRIC DEVICE FOR A VEHICLE

• US 20200137930A1
• Filed: 10/24/2019
• Published: 04/30/2020
• Est. Priority Date: 10/26/2018
• Status: Active Grant

• Current Assignee: Mahle International GmbH (MAHLE-STIFTUNG GmbH)
• Original Assignee: Mahle International GmbH (MAHLE-STIFTUNG GmbH)
• Inventors: Bruckner, Jens, Castillo, Jose Antonio, Gonzalez Espin, Francisco, Klingler, Manuel, Perez, Alfredo, Walter, Christoph
• Granted Patent: US 11,160,198 B2
• Time in Patent Office: Days
• CPC Class Codes: B60H 1/2221 arrangements of electric heaters for heating an intermediate liquid B60H1/034 takes precedence
• CPC Class Codes: F28F 3/02 Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations F28F3/08 takes precedence
• CPC Class Codes: H01L 23/473 by flowing liquids H01L23/4332, H01L23/4338 take precedence
• CPC Class Codes: H05K 7/20145 Means for directing air flow, e.g. ducts, deflectors, plenum or guides
• CPC Class Codes: H05K 7/2029 using a liquid coolant with phase change in electronic enclosures in cabinets of standardized dimensions H05K7/20536; in server cabinets H05K7/20709; in vehicle electronic casings H05K7/20845; in power control electronics H05K7/2089; in displays H05K7/20954
• CPC Class Codes: H05K 7/20872 Liquid coolant without phase change
• CPC Class Codes: H05K 7/20927 Liquid coolant without phase change

Abstract

The present disclosure relates to a power electronic device for a vehicle. The power electronic device includes at least one intermediate unit having at least one fluid duct system fluidically connected to a fluid inlet and a fluid outlet, at least one power electronic unit arranged at least at a surface of the at least one intermediate unit, and at least one heating device arranged at least at a surface of the at least one intermediate unit.

Claims

1. A power electronic device for a vehicle, comprising:

at least one intermediate unit having at least one fluid duct system that is fluidically connected to a fluid inlet and a fluid outlet,

at least one power electronic unit arranged at least at a surface of the at least one intermediate unit, and

at least one heating device arranged at least at a surface of the at least one intermediate unit.

2. The power electronic device according to claim 1, wherein the at least one heating device is arranged downstream from the at least one power electronic unit with respect to a fluid flow direction through the at least one fluid duct system.

3. The power electronic device according to claim 1, wherein the at least one heating device and the at least one power electronic unit are arranged on different surface sides of the at least one intermediate unit.

4. The power electronic device according to claim 1, wherein:

the at least one intermediate unit includes at least a first intermediate element and a second intermediate element,

wherein the first intermediate element has at least a first fluid duct,

wherein the second intermediate element has at least a second fluid duct, and

wherein the first fluid duct and the second fluid duct provide the at least one fluid duct system.

5. The power electronic device according to claim 4, wherein:

the first intermediate element has a first fluid inlet and a first fluid outlet, the first fluid inlet and the first fluid outlet fluidically connected to the first fluid duct, and

the second intermediate element has a second fluid inlet and a second fluid outlet, the second fluid inlet and the second fluid outlet fluidically connected to the second fluid duct.

6. The power electronic device according to claim 4, wherein the first fluid duct and the second fluid duct are fluidically connected to one another.

7. The power electronic device according to claim 4, wherein the first intermediate element is at least partially arranged at the second intermediate element.

8. The power electronic device according to claim 4, wherein the first intermediate element and the second intermediate element are at least partially connected to one another via a substance-to-substance bond.

9. The power electronic device according to claim 4, wherein the first intermediate element and the second intermediate element are at least partially connected to one another via an additional layer.

10. The power electronic device according to claim 4, wherein:

the first fluid duct is configured to be essentially straight, and

the second fluid duct is configured to be essentially straight.

11. The power electronic device according to claim 4, wherein:

the first fluid duct is configured to be essentially U-shaped, and

the second fluid duct is configured to be essentially U-shaped.

12. The power electronic device according to claim 4, wherein the at least one heating device is arranged between the first intermediate element and the second intermediate element.

13. The power electronic device according to claim 1, wherein:

a first housing section and a second housing section are provided,

the at least one power electronic unit is arranged between the at least one intermediate unit and the first housing section, and

the at least one heating device is arranged between the at least one intermediate unit and the second housing section.

14. The power electronic device according to claim 1, the at least one fluid duct system includes turbulence inserts.

15. The power electronic device according to claim 1, wherein at least one of the at least one power electronic unit and the at least one heating device are attached to a surface of the at least one intermediate unit via a substance-to-substance bond.

16. The power electronic device according to claim 1, the at least one intermediate unit defines at least one of a housing wall of a housing and a housing section of the at least one power electronic device.

17. The power electronic device according to claim 1, wherein the at least one fluid duct system is configured to be at least one of essentially straight at least in some sections and essentially U-shaped at least in some sections.

18. The power electronic device according to claim 1, wherein only one intermediate unit is provided.

19. The power electronic device according to claim 1, wherein the at least one power electronic unit and the at least one heating device are arranged in series at the at least one intermediate unit with respect to a fluid flow direction through the at least one fluid duct system.

20. The power electronic device according to claim 14, wherein at least two turbulence inserts are provided, the at least two turbulence inserts configured differently from each other.

21. The power electronic device according to claim 1, wherein the at least one intermediate unit has at least one of at least one intermediate element and at least one cooling element.