INPUT CONNECTOR WITH INTEGRATED RESIDUAL CURRENT DETECTION

Abstract

An input connector assembly, which is for detecting residual current and adapted for connecting power sources to electric equipment of electric vehicles, includes a wire terminal block, lock and release mechanisms, a residual current sensor, and a support holder. The wire terminal block has wire terminals for receiving electrical wires. The lock and release mechanisms are connected to the wire terminal block for fixing electrical wires to conductors in the wire terminals. The residual current sensor is adapted to be mounted to a flat surface. The support holder is designed to be placed above the residual current sensor and to be connected to the flat surface. The support holder is further adapted for supporting the wire terminal block in a position above the residual current sensor. Conducting connection pins run from the conductors in the wire terminals through openings in the residual current sensor to the flat surface.

Claims

1. An input connector assembly for detecting residual current and adapted for connecting power sources to electric equipment of electric vehicles, the input connector assembly comprising: a wire terminal block with wire terminals for receiving electrical wires; lock and release mechanisms connected to the wire terminal block for fixing electrical wires to conductors in the wire terminals; a residual current sensor adapted to be mounted to a flat surface; a support holder designed to be placed above the residual current sensor and to be connected to the flat surface, the support holder is further adapted for supporting the wire terminal block in a position above the residual current sensor, and wherein conducting connection pins run from the conductors in the wire terminals through openings in the residual current sensor to the flat surface.

2. The input connector assembly according to claim 1, further comprising a distribution circuit board adapted for distribution of connectors running from the wire terminals to respective openings in the current sensor.

3. The input connector according to claim 1, wherein the flat surface is a printed circuit board.

Description

DETAILED DESCRIPTION

[0009] The invention will now be described with reference to the figures.

[0010] FIG. 1 is a perspective view of a front side of an input connector assembly according to the invention.

[0011] FIG. 2 is a perspective view of a back side of an input connector assembly according to the invention.

[0012] FIG. 3 is a perspective view of a bottom side of an input connector assembly according to the invention.

[0013] FIG. 4 is a side view showing details of an input connector assembly according to the invention.

[0014] FIGS. 1 and 2 show front and back sides of the input connector assembly 100. The figures show the different parts making the connector assembly 100 and how the parts are connected relative to and to each other for detecting residual current from wires connected to wire terminals 130 of a wire terminal block 110. Each wire terminal 130 is provided with a lock and release mechanism 120, typically a handle, connected to the wire terminal block 110 for fixing electrical wires to conductors in the wire terminals 130.

[0015] A residual current sensor 150 is connected to a flat surface 160, typically a printed circuit board (PCB). A support holder 140 having a hollow design enabling it to be positioned above the residual current sensor 150 as shown in the figures. The support holder 140 is also connected to the same flat surface 160. The top of the support holder is adapted to support the wire terminal block 110. The residual current sensor 150, support holder 140 and the wire terminal block 110 will thus be placed above each other. Conducting connection pins 170 run from the conductors in the wire terminals 130 through openings in the residual current sensor 150 to the flat surface.

[0016] This compact construction of the input connector assembly 100 makes it possible to detect residual current between conductors without connecting a residual current detector directly to the wires conducting power.

[0017] In one embodiment of the invention, the input connector assembly 100 further comprises a distribution circuit board 180 adapted for distribution of connectors running from the wire terminals 130 to respective openings in the current sensor 150.

[0018] FIG. 3 shows a bottom side of an input connector assembly according to the invention. This figure illustrates how the support holder 140 is connected to the flat surface 140, e.g. by connecting the conducting connection pins 170 to a PCB by using press-fit or soldering or a combination of these techniques.

[0019] FIG. 4 shows details of an input connector assembly, where the conducting connection pins 170 run from the distribution circuit board 180 through the flat surface, e.g. to corresponding conductors of the PCB.

[0020] As understood from the above, the invention provides a compact input connector assembly for detecting residual currents. The construction is easy to assemble, has minimal size. The assembly can be built by robots, thereby minimizing assembly costs. In addition, the total power loss is kept as low as possible by using few parts in the current carrying path.