# US 11,451,118 B2 · Conductor arrangement and transportable electrical drive device

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- Number: US 11,451,118 B2
- Document ID: US11451118B2
- Status: Granted
- Kind: B2
- Application number: 16/095,933
- Filed: 2017-04-26
- Published: 2019-05-09
- Granted: 2022-09-20
- Earliest claimed: 2016-04-28
- Assignees: MOLABO GmbH; Universitaet der Bundeswehr Muenchen
- Applicants: MOLABO GmbH; Universitaet der Bundeswehr Muenchen
- Inventors: Adrian Patzak; Florian Bachheibl; Gurakuq Dajaku
- Web page: https://patentgrep.com/patent/US11451118B2

## CPC

- H02K 11/33: Drive circuits, e.g. power electronics (H02K11/38 takes precedence)
- B60L 50/50: using propulsion power supplied by batteries or fuel cells
- H01M 10/0413: {Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes}
- H01M 50/202: Casings or frames around the primary casing of a single cell or a single battery
- H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells
- H01M 50/50: Current conducting connections for cells or batteries
- H02K 5/225: {Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132)}
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- Y02E 60/10: Energy storage using batteries
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- Y02T 10/64: Electric machine technologies in electromobility
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})
- 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
- 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
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

The invention relates to a conductor assembly for transmitting electrical power in a mobile system, in particular in a land, air or water vehicle, comprising an inner conductor (1) and an outer conductor (3) coaxially arranged thereto, which are electrically insulated from each other by means of an insulation layer (2).

## Claims

### Claim 1

A mobile electrical drive device having a conductor arrangement for transmitting electrical energy in a mobile system comprising a land vehicle, aircraft, or watercraft, the conductor arrangement comprising:
an inner conductor; and
an outer conductor arranged coaxially thereto,
insulated from each other by an insulating layer,
wherein the conductor arrangement is configured to electrically connect an electrical energy source to a drive motor for supplying the same with energy, wherein the conductor arrangement is designed for a DC voltage between the inner and outer conductors of less than 1000 volts,
wherein the conductor arrangement connects a battery to the drive motor of the drive device, wherein the drive device comprises:
a circuit configuration for feeding the drive motor implemented as a multiphase electric machine, the circuit configuration comprising a circuit board having one connection each for a positive pole and a negative pole for connecting to an intermediate circuit voltage; and
at least one semiconductor power switch each mounted on the circuit board and connecting the positive pole and the negative pole to an output connection, forming a half-bridge circuit,
wherein the connections for the positive pole and the negative pole and the output connection are each implemented having a flat area such that the connections for the positive pole and the negative pole are disposed adjacent to each other or one above the other relative to a plane of the circuit board and extend flat in axial and radial directions of the drive motor, and
wherein the output connection is set up for providing a cycled voltage as an actuating signal for an electrical phase of the machine.

### Claim 2 (depends on 1)

The drive device according to claim 1,
wherein the circuit board comprises an electrically insulating board on which the connections for the positive pole and the negative pole and the output connection are mounted.

### Claim 3 (depends on 1)

The drive device according to claim 1,
comprising an intermediate circuit capacitor connected between the connection for the positive pole and the connection for the negative pole of the circuit board.

### Claim 4 (depends on 1)

The drive device according to claim 1,
wherein one circuit board is provided for actuating each phase of the multiphase electric machine.

### Claim 5 (depends on 1)

The drive device according to claim 1,
the drive motor thereof comprising a stator having slots in each of which one electrically conductive bar extending in an axial direction is provided, wherein bars are distributed along a circumference of the stator and wherein each bar is associated with one electrical phase of the drive motor.

### Claim 6 (depends on 5)

The drive device according to claim 5,
wherein each circuit board is disposed at an end face on the stator in an axial extension of the associated bar.

### Claim 7 (depends on 1)

The drive device according to claim 1,
wherein a contact ring is provided for connecting negative poles of the circuit board to each other and a contact ring is provided for connecting positive poles of the circuit board to each other.

### Claim 8 (depends on 1)

The drive device according to claim 1,
wherein the battery comprises an extensive, flat base plate and comprises at least two plates disposed in parallel and electrically separated by an insulator, forming a sandwich structure.

### Claim 9 (depends on 8)

The drive device according to claim 8,
wherein the plates comprise at least one comb structure for increasing a capacitance of a capacitor formed by the sandwich structure.

### Claim 10 (depends on 8)

The drive device according to claim 8,
wherein the insulator comprises carbon.

### Claim 11 (depends on 8)

The drive device according to claim 8,
wherein the battery comprises high-current contacts or busbars for charging the battery and mounted on a base plate of the battery.

### Claim 12 (depends on 11)

The drive device according to claim 11,
wherein the high-current contacts or busbars comprise a displaceable cover.

### Claim 13 (depends on 1)

The drive device according to claim 1,
comprising a protective circuit arrangement for tripping a fuse, wherein the fuse is connected in series with a battery cell of the battery, the protective circuit arrangement comprising a short-circuit switch connected in parallel to a series circuit comprising the battery and the fuse.

### Claim 14 (depends on 13)

The drive device according to claim 13,
wherein the short-circuit switch comprises half bridges implemented for feeding the drive motor, implemented as a multiphase electric machine, such that a direct short circuit or a short circuit across the drive motor is brought about in case of a fault.

### Claim 15 (depends on 1)

The drive device according to claim 1, wherein:
the circuit board comprises a flat board;
the flat board comprises a first surface and a second surface opposite to the first surface;
each of the first surface and the second surface is larger than any of side surfaces of the flat board;
the connection for the positive pole is flat, is disposed on one of the first and second surfaces, and is larger than any of the side surfaces of the flat board; and
the connection for the negative pole is flat, is disposed on one of the first and second surfaces, and is larger than any of the side surfaces of the flat board.

### Claim 16 (depends on 15)

The drive device according to claim 15, wherein:
the output connection is flat, is disposed on one of the first and second surfaces, and is larger than any of the side surfaces of the flat board; and
the output connection is disposed adjacent to at least one of the connections for the positive and negative poles.

### Claim 17 (depends on 15)

The drive device according to claim 15, wherein each of the connections for the positive and negative poles is substantially rectangular in shape.

### Claim 18 (depends on 1)

The drive device according to claim 1, wherein:
the connection for the positive pole comprises a first flat plate;
the connection for the negative pole comprises a second flat plate; and
the first flat plate and the second flat plate are disposed adjacent to each other or one above the other.

### Claim 19 (depends on 18)

The drive device according to claim 18, wherein:
the output connection comprises a third flat plate; and
the third flat plate is disposed adjacent to at least one of the first and second flat plates.
