DE102019211227A1 - Energy distributor - Google Patents

Abstract

The invention relates to an energy distributor for distributing electrical energy, comprising a busbar (2) made of an electrically conductive material and at least one connection bolt (3), the at least one connection bolt (3) comprising a bolt section (30), a head (32) and one has connecting section (34) arranged between the bolt section (30) and the head (32), the at least one connecting bolt (3) being inserted into a recess (2) in the busbar (2), so that the connecting section (34) connects the busbar ( 2) contacted in the region of the recess (20), and wherein the connecting section (34) and the recess (20) have contours that are complementary to one another and not rotationally symmetrical.

Description

APPLICATION AREA AND PRIOR ART

The invention relates to an energy distributor for distributing electrical energy with a busbar.

Energy distributors are used, for example, in control cabinets or the like. Power distributors usually have two or more connection points. Electrical energy is fed in at a connection point and passed on to one or more further connection points via the current-carrying conductor rail. The energy can be tapped there. As a rule, it is necessary that the current-carrying parts required for this are insulated from the environment. This is done, for example, in special housings.

TASK AND SOLUTION

It is an object of the present invention to provide an improved power distributor.

This object is achieved by the energy distributor with the features of claim 1. Further advantageous refinements result from the subclaims.

According to one aspect of the invention, an energy distributor comprising a busbar made of an electrically conductive material and at least one connection pin is created, the connection pin having a pin section, a head and a connecting section arranged between the pin section and the head, the connection pin being in a recess in the busbar is inserted, so that the connecting section contacts the busbar in the region of the recess, and wherein the connecting section and the recess have mutually complementary, non-rotationally symmetrical contours.

The energy distributor preferably has at least two connection points, at least one of these connection points being designed as a connection bolt according to the invention. All connection points of the energy distributor are preferably designed as connection bolts according to the invention.

A height of the connecting section preferably substantially corresponds to a thickness of the busbar, the head of the connecting bolt resting on a flat side of the busbar. The non-rotationally symmetrical contours have the effect that the connecting section is supported on the inner contour of the recess for a rotationally fixed connection of the connecting bolt to the busbar.

The shape of the contours can be suitably selected by the person skilled in the art depending on the application. In advantageous configurations, the connecting section and the recess each have a contour with two parallel side surfaces. Such a contour enables secure support, while at the same time simple manufacture of the recess and the connecting section is provided. For example, the recess is designed as an elongated hole.

The bolt section has a thread, at least in some areas, and is fixed to the busbar by means of a nut. The thread allows fixation with a nut. The bolt section is preferably designed as a threaded bolt section, so that connecting elements which are attached to the connecting bolt can be screwed onto the bolt section when the energy distributor is used or fixed by means of a nut. For manufacturing reasons, a groove can be provided between the connecting section and the thread.

In advantageous configurations, the nut is made of an electrically conductive material, so that a surface of the nut can be used as an electrical connection point. The mother is made of brass or copper, for example. The mother contacts the busbar with one side. By using a surface of the nut as an electrical connection point, it is possible to provide a connection bolt made of a material with little or no electrical conductivity.

In advantageous configurations, the connecting bolt is made of steel. This allows connecting elements to be attached to the connecting bolt when the energy distributor is used, with the application of high tightening forces. This means that the energy distributor can also be used in an environment in which the energy distributor is exposed to vibrations, for example.

The busbar is preferably surrounded by a non-electrically conductive material. For example, the busbar is housed in a housing.

In one embodiment, the conductor rail is extrusion-coated with a plastic for simple manufacture and secure sealing.

Alternatively or additionally, the busbar is housed in a multi-part housing in one embodiment. The housing parts are different Use case and design can be connected in a suitable manner.

Figure list

• 1: in einer perspektivischen Darstellung einen Energieverteiler mit drei Anschlussbolzen in einem teilweise demontierten Zustand;
• 2: in einer perspektivischen Darstellung den Energieverteiler gemäß 1 in einem montierten Zustand;
• 3: in einer perspektivischen Darstellung den Energieverteiler gemäß 1 nach einem Umspritzen; und
• 4: eine Schnittdarstellung des umspritzten Energieverteilers gemäß 3.

Further advantages and aspects of the invention result not only from the claims but also from the following description of an embodiment of the invention, which is explained below with reference to the figures. Show:

• 1 : a perspective view of an energy distributor with three connection bolts in a partially disassembled state;
• 2nd : in a perspective view the energy distributor according to 1 in an assembled state;
• 3rd : in a perspective view the energy distributor according to 1 after overmolding; and
• 4th : a sectional view of the molded energy distributor according to 3rd .

DETAILED DESCRIPTION OF THE EMBODIMENTS

1 and 2nd show an energy distributor 1 , for example for a control cabinet (not shown), during or after assembly.

The energy distributor 1 includes a track 2nd made of an electrically conductive material and several connection bolts 3rd , in the illustrated embodiment three connection bolts 3rd , where in 1 a connecting bolt 3rd is shown in a disassembled state. The connection bolts 3rd are on the power rail 2nd using nuts 4th fixed.

The track 2nd is, for example, made of brass or copper or another material with a high electrical conductivity. The connection bolts 3rd are made of steel, for example, and have high strength. Each connector bolt 3rd has a bolt portion 30th , a head 32 and one between the bolt section 30th and the head 32 arranged connecting section 34 on. A height of the connection section 34 corresponds at least essentially to a thickness of the busbar 2nd .

The connection bolts 3rd are each in a recess 20th on the track 2nd used, the connecting section 34 the track 2nd in the area of the recess 20th contacted. The head 32 comes in on one 1 and 2nd hidden flat side of the track 2nd to the plant and the mother 4th is on the opposite flat side 22 the track 2nd on the connection bolt 3rd screwed on.

The connecting section 34 and the recess 20th have mutually complementary, not rotationally symmetrical contours. In the illustrated embodiment, the recesses are 20th as elongated holes with two parallel side surfaces 200 designed. The connecting sections 34 have corresponding parallel side surfaces 340 on.

When installing the connection bolt 3rd on the track 2nd support the side surfaces 340 on the side surfaces 200 the recess 20th from. This ensures a high tightening torque for a screw connection. This installation causes no or at all irrelevant distortion of the busbar 2nd .

On one of the power rails 2nd protruding free end of the connecting bolt 3rd connection elements (not shown) can be connected in use. In the illustrated embodiment, the bolt section has 30th a thread over its entire exposed area. The connection elements are connected, for example, by screw connections. Since the connecting bolt is made of steel and is supported on the busbar in the area of the connecting section, high tightening torques are also possible for connecting the connecting elements.

The mother 4th contacts the busbar 2nd on the flat side 22 . The mother 4th is made of a material with high electrical conductivity, such as brass or copper. An exposed surface 40 mother 4th can be used as an electrical connection point. This ensures a high electrical conductivity of the energy distributors 1 despite using the connecting bolts 3rd made of steel or another material with a low electrical conductivity. Depending on the design of a connection element, there is an exposed flat side and / or an outer surface of the nut 4th usable as an electrical connection point.

As in the 3rd and 4th shown is the energy distributor 1 molded in advantageous configurations, so that a housing 5 for protection against contact and moisture. The housing shown 5 is only an example.

Overmolding takes place after the connection bolts have been installed 3rd and fixing the connection bolts 3rd by means of the nuts 4th . To use a surface 40 the nuts 4th To enable it as an electrical connection point, in one embodiment, a corresponding sealing (spotting) of these surfaces is provided when molding around.

In other configurations, instead of a housing created by extrusion coating, a multi-part housing is provided, the housing parts being glued, welded, latched or connected in some other way.

The shape of the energy distributor shown 1 and the number of connection bolts 3rd is only an example. Numerous modifications are conceivable.

For example, in one configuration, there is an angled busbar 2nd provided, protection against contact and moisture being provided by assembling two half-shells.

For a production of the energy distributor shown 1 are in the track 2nd several, in the illustrated embodiment, three elongated holes, each with two parallel side surfaces 200 brought in. On the connection bolts 3rd becomes a complementary connecting section 34 with corresponding side surfaces 340 intended. The connection bolts 3rd are in the recesses designed as elongated holes 20th used and by means of nuts 4th fixed. Then the energy distributor created in this way 1 overmolded, being a surface 40 the nuts remain free.

Claims (8)

Energy distributor comprising a busbar (2) made of an electrically conductive material and at least one connection bolt (3), characterized in that the at least one connection bolt (3) has a bolt section (30), a head (32) and one between the bolt section (30) and the head (32) arranged connecting section (34), wherein the at least one connecting bolt (3) is inserted into a recess (2) of the busbar (2), so that the connecting section (34) the busbar (2) in the region of the recess (20) contacted, and wherein the connecting section (34) and the recess (20) have mutually complementary, non-rotationally symmetrical contours. Energy distributor after Claim 1 , characterized in that the connecting section (34) and the recess (20) each have a contour with two parallel side surfaces (340, 200). Energy distributor after Claim 1 or 2nd , characterized in that the bolt section (30) has a thread at least in some areas and is fixed to the busbar (2) by means of a nut (4). Energy distributor after Claim 3 , characterized in that the nut (4) is made of an electrically conductive material and a surface (40) of the nut can be used as an electrical connection point. Energy distributor according to one of claims 1 to 4, characterized in that the at least one connecting bolt (3) is made of steel. Energy distributor according to one of claims 1 to 5, characterized in that the busbar (2) is surrounded by a non-electrically conductive material. Energy distributor after Claim 6 , characterized in that the busbar (2) is extrusion-coated with a plastic. Energy distributor after Claim 6 or 7 , characterized in that the busbar (2) is housed in a multi-part housing.

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