WORK MACHINE, IN PARTICULAR DUMP TRUCK OR TRUCK

• US 20150251611A1
• Filed: 03/05/2015
• Published: 09/10/2015
• Est. Priority Date: 03/06/2014
• Status: Active Grant

• Current Assignee: Liebherr-Mining Equipment Colmar SAS (Liebherr-International AG)
• Original Assignee: Liebherr-Mining Equipment Colmar SAS (Liebherr-International AG)
• Inventors: RICHTHAMMER, Burkhard, KUGELSTADT, Kai, LEVARAY, Adrien, SOMMER, Bernd
• Granted Patent: US 9,963,094 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B60K 1/00 Arrangement or mounting of electrical propulsion units B60K7/00 takes precedence; arrangement or mounting of plural diverse prime-movers for mutual or common propulsion B60K6/00; electric transmission arrangements B60K17/12; electric equipment or propulsion of electrically-propelled vehicles per se B60L; current-collectors for power supply lines of electrically-propelled vehicles B60L5/00
• CPC Class Codes: B60K 6/448 Electrical distribution type
• CPC Class Codes: B60K 6/46 Series type
• CPC Class Codes: B60K 6/52 Driving a plurality of drive axles, e.g. four-wheel drive
• CPC Class Codes: B60R 16/0239 Electronic boxes
• CPC Class Codes: B60W 2300/125 Heavy duty trucks
• CPC Class Codes: B60Y 2200/142 Heavy duty trucks
• CPC Class Codes: B60Y 2200/41 Construction vehicles, e.g. graders, excavators
• CPC Class Codes: H05K 7/14324 comprising modular units, e.g. DIN rail mounted units
• CPC Class Codes: Y10S 903/951 Assembly or relative location of components

Abstract

The present disclosure relates to a work machine, in particular in the form of a dump truk or of a truck, having a diesel electric traction drive, comprising at least one internal combustion engine, at least one alternator, at least one set of power electronics as well as at least one electric motor, wherein the power electronics are divided into two or more functional modules and at least one, each, functional module has an encapsulated housing.

Claims

1. A work machine, having a diesel electric traction drive, comprising at least one internal combustion engine, at least one alternator, at least one set of power electronics as well as at least one electric motor,

wherein the power electronics are divided into two or more functional modules and at least one of the functional modules, all the functional modules, has/have an encapsulated housing.

2. The work machine of claim 1, wherein the work machine is in the form of a dump truck or of a truck.

3. The work machine in accordance with claim 1, wherein the housing material at least partially comprises metal.

4. The work machine of claim 3, wherein the housing material includes steel and/or stainless steel and/or aluminum.

5. The work machine in accordance with claim 1, wherein the encapsulated housing comprises one or more external terminals coupled with electrical cabling to the alternator and/or to further functional modules and/or to one or more electrical traction drives.

6. The work machine in accordance with claim 1, wherein the functional modules at least partially comprise an integrated cooling with external terminals on an outer housing side.

7. The work machine in accordance with claim 1, wherein the electronic components of the power electronics are divided into different functional modules.

8. The work machine in accordance with claim 5, wherein frequency converters for each electric motor are accommodated in separate functional modules.

9. The work machine in accordance with claim 1, wherein at least one functional module comprises an alternator control or alternator regulator and/or the control/regulator of frequency converters for the electric motors.

10. The work machine in accordance with claim 1, wherein a receiving board or frame, is provided for receiving two or more or all functional modules of the power electronics.

11. The work machine in accordance with claim 8, wherein the receiving board or frame is releasably connectable to the a vehicle frame of the work machine.

12. The work machine in accordance with claim 1, wherein at least some of the functional modules or all the functional modules are mounted in a region of the electric motor to be supplied and/or in a region of the alternator, including between the alternator and the electric motor, in or at the vehicle frame.

13. A system, comprising:

a work machine having a diesel electric traction drive including at least one internal combustion engine, at least one alternator, at least one set of power electronics as well as at least one electric motor, wherein the motor is coupled to a driving axle driving a wheel of the work machine, and wherein the power electronics are arranged adjacent the driving axle of the work machine between parallel frame rails of the work machine, wherein the power electronics are divided into two or more functional modules and at least one of the functional modules has an encapsulated housing.

14. The work machine in accordance with claim 13, wherein the housing material at least partially comprises metal.

15. The work machine in accordance with claim 14, wherein the encapsulated housing comprises one or more external terminals coupled with electrical cabling to the alternator and/or to further functional modules and/or to one or more electrical traction drives, and wherein the functional modules at least partially comprise an integrated cooling with external terminals on an outer housing side, wherein the electronic components of the power electronics are divided into different functional modules, and wherein frequency converters for each electric motor are accommodated in separate functional modules.

16. The work machine in accordance with claim 14, wherein at least one functional module comprises an alternator control or alternator regulator and/or the control/regulator of frequency converters for the electric motors, and wherein a receiving board or frame, is provided for receiving two or more or all functional modules of the power electronics, and wherein the receiving board or frame is releasably connectable to the a vehicle frame of the work machine.

17. The work machine in accordance with claim 16, wherein at least some of the functional modules or all the functional modules are mounted between the alternator and the electric motor, in between rails of a vehicle frame.

18. The system of claim 17, wherein the engine is longitudinally mounted in the work machine forward of the driving axle, the work machine further having an upper walking deck positioned vertically above the frame rails, the rails each formed as longitudinal beams coupled together to one another, and where the housing does not extend vertically above a top of the rails along an entire longitudinal length of the housing.

19. The system of claim 18, wherein at least two power electronics housings are provided adjacent one another, and where outside side walls of the housings are each adjacent and in face-sharing contact with inner side walls of the respective side rails.