Electrical connection structure

Abstract

To dispose a first bus bar and a second bus bar above a capacitor unit without being bent so as to extend from above a capacitor unit to the terminals of the circuit unit.SOLUTION: An electrical connection structure includes a first male screw, a first collar, and a first screw member. A circuit unit is mounted on a machine base. The first male screw protrudes upward from the end of the machine base facing the capacitor unit. The first collar is a conductor with female screws on both the top and bottom, and its bottom is screwed onto the first male screw. The first screw member fastens the first bus bar to the top of the first collar such that the first bus bar is positioned above the capacitor unit. The second bus bar is arranged in a similar manner.SELECTED DRAWING: Figure 1

Claims

1. An electrical connection structure that electrically connects the positive terminal of a circuit unit mounted on a machine base, the positive terminal of a predetermined capacitor unit, and a predetermined first busbar to each other, and electrically connects the negative terminal of the circuit unit, the negative terminal of the capacitor unit, and a predetermined second busbar to each other, The upper surface of the capacitor unit is located higher than the upper surface of the machine base. A first male screw and a second male screw protrude upward from the end of the condenser unit on the machine base, A first collar having female screw conductors on both the upper and lower ends, with the lower end screwed into the first male screw, and electrically connected to the positive terminal of the circuit unit and the positive terminal of the capacitor unit, A second collar having female screw conductors on both its upper and lower ends, the lower end of which is screwed onto the second male screw, and electrically connected to the negative terminal of the circuit unit and the negative terminal of the capacitor unit, A first screw fastening member electrically connects the first busbar to the first collar by fastening the first busbar to the upper part of the first collar such that the end of the first busbar on the first collar side is positioned higher than the upper surface of the capacitor unit and the first busbar is positioned above the capacitor unit, A second screw fastening member electrically connects the second busbar to the second collar by fastening the second busbar to the upper part of the second collar such that the end of the second busbar on the second collar side is positioned higher than the upper surface of the capacitor unit and the second busbar is positioned above the capacitor unit, An electrical connection structure comprising the above.

2. The first male screw and the second male screw are components of the same shape. The first collar and the second collar are components of the same shape. The first screw-fastening member and the second screw-fastening member are members of the same shape. The electrical connection structure according to claim 1.

3. The circuit unit includes a part of the drive circuit that drives the vehicle's motor, The capacitor unit comprises a smoothing capacitor in the drive circuit. The electrical connection structure according to claim 1 or 2.

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