Work machine, in particular dump truck or truck

• US 9,771,037 B2
• Filed: 03/05/2015
• Issued: 09/26/2017
• 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: Kugelstadt, Kai, Levaray, Adrien, Richthammer, Burkhard
• Primary Examiner(s): Phan, Hau
• Assistant Examiner(s): Meyer, Jacob
• Application Number:
  US14/639,938
• Publication Number:
  US 20150251610A1
• Time in Patent Office: 936 Days
• 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 11/02 with liquid cooling
• CPC Class Codes: B60K 6/40 characterised by the assembly or relative disposition of components
• CPC Class Codes: B60K 6/405 Housings
• CPC Class Codes: B60K 6/46 Series type
• CPC Class Codes: B60P 1/28 Tipping body constructions
• CPC Class Codes: B60R 16/0239 Electronic boxes
• CPC Class Codes: B60S 5/00 Servicing, maintaining, repairing, or refitting of vehicles vehicles adapted to carry a workshop for servicing or maintenance B60P3/14; servicing rail locomotives B61K
• CPC Class Codes: B60Y 2200/142 Heavy duty trucks
• CPC Class Codes: B60Y 2200/92 Hybrid vehicles
• CPC Class Codes: B62D 33/0617 for tractors or off-the-road vehicles protective devices for drivers in case of overturning of tractors B60R21/131
• CPC Class Codes: Y02T 10/62 Hybrid vehicles
• 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 truck 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 arranged at least partially in the region of a driven driving axle of the work machine.

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 at least partially arranged in a region of a driven driving axle of the work machine,

wherein the at least one alternator, the power electronics, and the at least one electric motor are arranged behind one another at the work machine in a direction of travel, and at a frame of the work machine,

wherein the power electronics are arranged at least partially between the alternator and the driven driving axle,

wherein the power electronics are arranged at least partially between two frame beams of the frame of the work machine, and

wherein the power electronics are housed by at least one housing, and where outside walls of the at least one housing are adjacent to and in face-sharing contact with inner side walls of respective frame beams.

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 power electronics are divided into two or more functional modules and each functional module has an encapsulated housing.

4. The work machine in accordance with claim 3, wherein the functional modules are arranged in the frame between the frame beams.

5. The work machine in accordance with claim 1, wherein the power electronics are accessible for servicing, installation and/or dismantling with an upwardly tilted skip of the work machine.

6. The work machine of claim 1, wherein the power electronics are housed by a plurality of housings, each housing having a same size and shape, the housings being adjacent to one another.

7. The work machine of claim 6, wherein a long axis of the housings is aligned with the direction of travel.

8. The work machine of claim 7, wherein the power electronics comprise three modules, each module with its own housing in the plurality of housings, wherein a first module is configured to control the at least one alternator, wherein second and third modules comprise frequency converters, the second module configured to provide electric power to a first electric motor of the at least one electric motor, and the third module configured to provide electric power to a second electric motor of the at least one electric motor.

9. The work machine of claim 8, wherein the first module is arranged between the second and third modules.

10. 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 at least two power electronics housings are provided adjacent one another,

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,

wherein the power electronics are housed by at least one housing, the housing fully between the two rails, where the housing does not extend vertically above a top of the rails along an entire longitudinal length of the housing, and

wherein the work machine further includes an operator cab, and wherein the power electronics include a first module configured to control the at least one alternator.

11. The system of claim 10, wherein the work machine further includes a skip, and wherein the power electronics further include a second module, different from the first module, comprising frequency converters, the second module configured to provide electric power to the at least one electric motor.

12. The system of claim 11, wherein the work machine further includes a radiator module, and wherein the first and second modules are housed in separate housings, each housing including an integrated cooling system.

13. The system of claim 12, wherein the radiator module is positioned at a front of the work machine without any other work machine components forward of the radiator module, the radiator module coupled below the upper deck.

14. The system of claim 10, where outside side walls of the at least two housings of the power electronics are each adjacent and in face-sharing contact with inner side walls of respective frame rails.