# US 11,299,052 B2 · Industrial truck comprising an electrical plug connector

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- Number: US 11,299,052 B2
- Document ID: US11299052B2
- Status: Granted
- Kind: B2
- Application number: 16/251,371
- Filed: 2019-01-18
- Published: 2019-07-25
- Granted: 2022-04-12
- Earliest claimed: 2018-01-24
- Assignees: Jungheinrich Aktiengesellschaft
- Applicants: Jungheinrich Aktiengesellschaft
- Inventors: Tilman Rosenberg
- Web page: https://patentgrep.com/patent/US11299052B2

## CPC

- B60L 53/16: Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
- B66F 9/07504: {Accessories, e.g. for towing, charging, locking}
- B66F 9/07531: {Battery compartments}
- H01R 13/516: Means for holding or embracing insulating body, e.g. casing {, hoods}
- H01R 13/62: Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H02J 7/751: {concerning the insertion or the connection of the batteries}
- B60L 2200/44: Industrial trucks or floor conveyors
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/7072: Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
- Y02T 90/14: Plug-in electric vehicles
- 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
- B66F: HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD ({invalid lifting devices A61G7/10; } mounting artificial islands on piles or like supports E02B17/00; scaffolding combined with lifting devices E04G1/22; lifting devices for sliding forms E04G11/24; lifting of buildings E04G23/06; shores or struts E04G25/00; lifts or other hoisting devices on ladders E06C7/12; props for mining E21D15/00)
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

An industrial truck comprises a drive part comprising a battery compartment and a battery having a cladded exterior surface and is positioned within a housing. The housing is configured to be positioned within the battery compartment. An electrical plug connector is configured to be electrically connected to the battery such that the electrical plug connector is configured to supply power to the battery during a charging process. The electrical plug connector has a plug-in direction for an external electrical plug connector and the plug-in direction has an angle of 20° to 70° relative to a horizontal axis.

## Claims

### Claim 1

An industrial truck comprising:
a drive part comprising a battery compartment;
a battery having a cladded exterior surface defining a passage and positioned within a housing, wherein the housing is configured to be positioned within the battery compartment; and
an electrical plug connector mounted on a side surface of the battery and accessible through the passage in the cladded exterior, the electrical plug connector configured to be electrically connected to the battery, wherein the electrical plug connector is configured to supply power to the battery during a charging process,
wherein the electrical plug connector has a plug-in direction for an external electrical plug connector, and wherein the plug-in direction has an angle of 20° to 70° relative to a horizontal X axis and extends along a plane that is parallel to a vehicle longitudinal direction.

### Claim 2 (depends on 1)

The industrial truck according to claim 1, wherein the electrical plug connector is attached at a height of 600 mm to 900 mm to one of the drive part and the housing.

### Claim 3 (depends on 2)

The industrial truck according to claim 2, wherein the electrical plug connector is configured to be pivoted relative to the horizontal X axis.

### Claim 4 (depends on 3)

The industrial truck according to claim 3, wherein the external electrical plug connector may be inserted into the electrical plug connector by a standing operator in a continuous ergonomic natural arm movement.

### Claim 5 (depends on 3)

The industrial truck according to claim 3, wherein the electrical plug connector further comprises a cover configured to block access to the electrical plug connector.

### Claim 6 (depends on 5)

The industrial truck according to claim 5, wherein the cover is configured to be pushed to a side by inserting an external plug.

### Claim 7 (depends on 1)

The industrial truck according to claim 1, wherein the plug-in direction of the electrical plug connector extends in a plane that is transverse to a vehicle longitudinal direction.

### Claim 8 (depends on 1)

The industrial truck according to claim 1, further comprising at least one lateral insertion aid configured to guide insertion of the external electrical plug connector into the electrical plug connector.

### Claim 9 (depends on 8)

The industrial truck according to claim 8, further comprising a mast, wherein the electrical plug connector is attached to the drive part on a side adjacent to the mast.

### Claim 10 (depends on 1)

The industrial truck according to claim 1, wherein the plug connector is freely pivotable about a pivot axis.