FR2468214A1 - DEVICE FOR THE ELECTRICAL CONNECTION OF POLES OF ACCUMULATOR ELEMENT OF ACCUMULATORS OR TERMINAL POLES TO A CONNECTOR - Google Patents

Abstract

at. Device for electrically connecting the poles of accumulator cells or terminal poles of accumulators to a connector. b. Device characterized in that the poles 1 of the accumulator comprise a layer 2 of a material harder than lead, this layer having an internal thread 5 and a split upper part projecting out of the pole 1 part of which the segments 4 are capable of being applied under pressure against the internal wall of a hole in the connector 6 by screwing a conical screw 8. c. The invention applies in particular to traction batteries mounted on forklifts and other electric vehicles used in particular in industrial assemblies.

Description

1. The object of the invention is a device

  for the electrical connection of poles of accumulators

  end terminals or accumulator poles to a connector.

  To connect connectors to accumulators, including lead accumulators are known a variety of devices. In the case of starter batteries, rings with a conical orifice that adapts to the conical terminal poles of the accumulator are used to a large extent. In the case of industrial accumulators threaded nipples are frequently placed in the poles, and thus a threaded nipple can be coated evenly cast with lead or screwed into a hole in the pole. In the case of the use of rings> the pole of the battery can be slightly deformed during screwing. In the case of the implementation of threaded nipples high application pressures

  and furthermore welding processes are necessary.

  It is also known (DE-GM 7 441 993) to provide in the pole of the accumulator an injected stud, into which a threaded stud can be screwed, via

  which a connecting cable is pressed against the terminal pole.

  Also in the case of this provision a deformation of the

  terminal pole when screwing the threaded nipple is possible.

  The object of the invention is to create an arrangement

  simple manufacturing device for electrically connecting battery poles to a connector, this device requiring largely no maintenance and its mounting being

  possible without special tools or welding devices.

  For this purpose, the invention relates to a device for the electrical connection of battery cell poles or accumulator terminal poles to a connector, characterized in that the poles of the battery comprise a layer of a material more hard as the lead, this layer having an internal thread and a slotted top projecting out of the pole, parts of which segments are likely to be applied under pressure. against the inner wall of a bore in the connectors by screwing

of a conical screw.

  The invention will be explained in more detail with reference to the accompanying drawings in which:

246821 4

  FIG. 1 shows in elevation an accumulator bulb according to the invention, FIG. 2 is a top view of the battery shown in FIG. 1, FIG. 3 is an axial sectional view illustrating the FIG. object of the invention - figure 4 shows the layout of the

Figure 3 in top view.

  FIG. 1 shows an accumulator bulb 1 on which is cast a copper layer 2 made of a material that is harder than lead, for example copper. The upper part protruding above the plate of the linear layer is provided with slots 3 so that it has several

segments 4.

  In addition, the hollow glass layer 2 has an internal thread 5. The connector 6, made of, for example, aluminum or copper, that is to say of a material of high conductivity, is threaded onto the upper part protruding from the layer 2 with the interposition of a disc 7 of plastic or rubber which serves to compensate for any tolerances. Then a ceramic screw 8 is screwed into the thread 3 of the layer 2. During this screwing, the split segments 4 are pressed outwards by the ceramic shape of the ceramic screw 8 and are consequently pressed against the internal wall of the binding. of connector 6, so that it results

  an irreproachable mechanical and electrical connection. advantageously

  mentpla internal face of split segments 4 of layer 2 which

  protrudes above head 1, is also of ceramic form.

  The flat connector 6 may be provided with an insulating jacket 9 made of plastics material, which may be threaded in the form of a plastic sheath, or may be attached in the form of a layer. In the same way the conical screw 8 may be provided in its outer part with an insulation 10 in the form of a plastic injection coating. This results in an easily achievable and maintenance-free pressure connection between

  the flat layer and the flat connector.

3.-

Claims (3)

  1.- Device for the electrical connection   charging unit batteries or accumulator terminal poles with a connector, characterized in that the battery poles (1) comprise a layer (2) of harder material than lead, this layer having an internal thread (5) and a slotted top protruding from the pole (1), part of which the segments (4) can be applied under pressure against the inner wall of a   pierced in the connector (6) by screwing a conical screw (8).   2.- Device according to claim 1, characterized in that the conical screw (8) and the connector (6)   are provided with a plastic envelope (9, 10).   3.- Device according to any one of   Claims 1 and 2, characterized in that the layer (2) and   the conical screw (8) consists of copper.