Current supply point for a power and control unit of a battery-operated industrial truck

• US 20060216971A1
• Filed: 03/10/2006
• Published: 09/28/2006
• Est. Priority Date: 03/26/2005
• Status: Active Grant

• Current Assignee: Jungheinrich AG
• Original Assignee: Jungheinrich AG
• Inventors: Schuldt, Thomas
• Granted Patent: US 7,226,322 B2
• Time in Patent Office: Days
• US Class Current: 439/83
• CPC Class Codes: H01R 12/57 surface mounting terminals
• CPC Class Codes: H01R 12/718 Contact members provided on the PCB without an insulating housing contacts for abutting H01R12/714
• CPC Class Codes: H01R 4/02 Soldered or welded connections H01R4/625, H01R4/723, H01R12/59 take precedence
• CPC Class Codes: H01R 4/307 characterised by the thread of the screw or nut
• CPC Class Codes: H01R 4/5025 combined with a threaded ferrule operating in a direction parallel to the conductor
• CPC Class Codes: H01R 4/56 one conductor screwing into another
• CPC Class Codes: H01R 4/625 Soldered or welded connections

Abstract

A current supply point for a power and control unit of a battery-operated industrial truck wherein the power and control unit has a printed-circuit board inside a casing, the current supply point has a first component connectable to the printed-circuit board and a pin-shaped second component led out of the casing in an insulation which is adapted to be brought into electric contact with the first component, and wherein a portion of the second component that is located outside the casing has means for connection to a conductor, wherein the first component has a first portion connectable to the printed-circuit board, a second portion having a male thread, and a third portion including an annular first contact surface, the second component has an axial bore with a female thread within a first end portion that is adapted to be screwed onto the male thread of the first component so as to cause the first contact surface to abut against an annular second contact surface of the second component.

Claims

1. A current supply point for a power and control unit of a battery-operated industrial truck wherein the power and control unit has a printed-circuit board inside a casing, the current supply point has a first component connectable to the printed-circuit board and a pin-shaped second component led out of the casing in an insulation which is adapted to be brought into electric contact with the first component, and wherein a portion of the second component that is located outside the casing has means for connection to a conductor supply point, characterized in that the first component (16) has a first portion connectable to the printed-circuit board, a second portion (40) having a male thread (42), and a third portion (38) including an annular or conical or cylindrical first contact surface, the second component (18) has an axial bore (28) with a female thread within a first end portion that is adapted to be screwed onto the male thread (42) of the first component so as to cause the first contact surface to abut against an annular second contact surface (30) of the second component.

3. The current supply point according to claim 1, characterized in that the portion of the second component (18) that is located outside the casing (12) has attached thereto key engagement surfaces (34, 34a).

4. The current supply point according to claim 1, characterized in that the first contact surface is defined by a conical third portion (38) located between the first and second portions (36, 40) and the second component (18, 18a) has a complementary cone surface (30) within the end portion of the axial bore (28).

5. The current supply point according to claim 1, characterized in that the component (18, 18a, 18b) is made of a material which is softer than that of the first component (16, 16b).

6. The current supply point according to claim 5, characterized in that the component (18, 18a) is made of aluminium and the first component is made of brass, preferably silver-plated brass.

7. The current supply point according to claim 1, characterized in that the first component (16) has an axial through bore (42).

8. The current supply point according to claim 1, characterized in that the pin-shaped second component (18, 18a, 18b) is of a substantially cylindrical shape.

2. The current supply point for a power and control unit of a battery-operated industrial truck wherein the power and control unit has a printed-circuit board inside a casing, the current supply point has a first component connectable to the printed-circuit board and a pin-shaped second component led out of the casing in an insulation which is adapted to be brought into electric contact with the first component, and wherein a portion of the second component that is located outside the casing has means for connection to a conductor supply point, characterized in that the first component (16b) has a first portion (36b) connectable to the printed-circuit board and a cylindrical second portion (50) and the second component (18b) has an axial bore (52) within a first end portion, which causes a press fit to be formed with the second portion (50) of the second component (16b).