DE202023106334U1 - Busbar and adapter - Google Patents

Abstract

Busbar with an approximately U-shaped cross section and inwardly extending webs and an adapter with contact pieces for tapping the current for a consumer, characterized in that
- that at least two insulating bodies, each with at least three electrical conductors, are provided in the busbar, symmetrical to a reference plane,
- that the six electrical conductors (L1 - L4 and 2 x N) of the busbar are accessible to the three pickup contacts on the adapter (two phase contacts and one neutral contact) and
- that the adapter can be inserted into the busbar in at least two different positions,
- Wherein it is arranged between the insulating bodies of the busbar
- and the contact pieces of the adapter are arranged in such a way that they optionally rest on the electrical conductors (L1 - L2 and N or L3 - L4 and N) in a current-conducting manner.

Description

The invention relates to a busbar with an approximately U-shaped cross section and inwardly extending webs and with an adapter having contact pieces for tapping the current for a consumer. Basically, single-phase, two-phase and three-phase busbars and associated adapters are known. The different current-carrying conductors in lights connected to the busbar, for example, allow different options for switching and dimming circuits. In addition, lights can also be selectively switched on and off and dimmed electronically; However, such facilities are complex and expensive, require a lot of space and are therefore unsightly. For example, a lamp is connected to the power rail using an adapter with built-in mechanical contact switches to draw power from a specific phase, which makes the adapter bulky and unsightly.

The invention is therefore based on the object of realizing a busbar and an associated, particularly space-saving adapter for operation on four current-carrying conductors (e.g. for switching and dimming circuits as well as lighting states and lighting moods), which results in savings in additional devices and device volume as well as costs enabled.

To solve this problem, the invention provides that two insulating bodies, each with three electrical conductors, are provided in the busbar and that these conductors are accessible to the contact pieces located on the adapter and that the adapter can be inserted into the busbar in at least two different positions, whereby it is arranged between the insulating bodies and has its contact pieces such that they rest on the electrical conductors of one of the two insulating bodies in a current-conducting manner.

The busbar according to the invention has four phase conductors and two associated neutral conductors as well as a protective conductor, with the busbar itself, i.e. its metal housing, expediently serving as a protective conductor. The adapter is a device that takes up very little space and can be connected to the desired phase side of the busbar by rotating it through 180°. For this purpose, the adapter has two contact pieces for the phase conductors, a contact piece for the neutral conductor and a contact piece for the protective conductor. With a switch built into the adapter, the outgoing phase conductor of the connected device (e.g. the lamp) can be connected to one of the two phase contact pieces. Depending on how the adapter is inserted into the busbar, its contact pieces have a phase connection with one or the other conductor side of the busbar, so that a total of four different connections and thus lighting situations are possible with one adapter. The connection to the neutral conductor and to the protective conductor is provided on both conductor sides of the busbar.

Further features of the invention emerge from the subclaims and the description in connection with the following drawings.

• 1: in größerem Maßstab einen Schnitt durch eine Stromschiene mit zwei Isolierkörpern, in denen jeweils drei elektrische Leiter angeordnet sind,
• 2: einen Schnitt wie in 1 mit einem zusätzlich vorgesehenen Adapter in seiner ersten Funktionsstellung und
• 3: einen Schnitt wie 2, wobei der Adapter eine zweite Funktionsstellung einnimmt.

Show:

• 1 : on a larger scale, a section through a busbar with two insulating bodies, in each of which three electrical conductors are arranged,
• 2 : a cut as in 1 with an additionally provided adapter in its first functional position and
• 3 : a cut like 2 , with the adapter assuming a second functional position.

On the outlet side of the adapter there is the already mentioned phase conductor switch, with which the phase conductor of the connected lamp, for example, can be connected to a conductor phase L1 or L2 or L3 or L4.

Reference symbol list

1

current-carrying phase conductor of the busbar

2

current-carrying phase conductor of the busbar

3

current-carrying phase conductor of the busbar

4

current-carrying phase conductor of the busbar

5

Insulator for the phase conductors (1) and (2) of the busbar and the neutral conductor (N)

6

Insulator for the phase conductors (3) and (4) of the busbar and the neutral conductor (N)

A

adapter

L1/L2

Depending on the switching position of the changeover switch (U), the optional connection of the phase conductor of the consumer (V) to the phase conductor (1) or (2) of the busbar

L3/L4

Depending on the switching position of the changeover switch (U), the optional connection of the phase conductor of the consumer (V) to the phase conductor (3) or (4) of the busbar

M

Metal housing of the busbar

N

Neutral conductor

SL

protective conductor

St

Busbar in cross section

Sy

Axis of symmetry of the busbar

U

Changeover switch for connecting the device phase conductor (L1/L2) or (L3/L4) to the current-carrying phase conductor (1) or (2) or phase conductor (3) or (4) of the busbar

v

Consumers connected to the power rail using the adapter (A), e.g. a light

Claims (4)

Busbar with an approximately U-shaped cross-section and inwardly extending webs and an adapter with contact pieces for tapping the current for a consumer, characterized in that - in the busbar at least two insulating bodies, each with at least three electrical conductors, are provided in relation to a reference plane , - that the six electrical conductors (L1 - L4 and 2 x N) of the busbar are accessible to the three pickup contacts on the adapter (two phase contacts and one neutral contact) and - that the adapter can be inserted into the busbar in at least two different positions is, - whereby it is arranged between the insulating bodies of the busbar - and the contact pieces of the adapter are arranged in such a way that they optionally rest on the electrical conductors (L1 - L2 and N or L3 - L4 and N) in a current-conducting manner. Busbar and adapter Claim 1 , characterized in that the adapter with its protective conductor contact SL is electrically conductive on the metal housing of the busbar, which serves as a protective conductor. Busbar and adapter Claim 1 , characterized in that a changeover switch is installed in the adapter, with which the phase connection cable of the consumer connected to the adapter (e.g. a lamp) can be optionally connected to the phase conductor L1 or L2 or L3 or L4 picked up from the busbar by the adapter can. Busbar and adapter according to at least one of the preceding claims, characterized in that through the interaction of the busbar (number and arrangement of electrical conductors) with the adapter (number and arrangement of the pickup contacts as well as two possible positions for its insertion into the busbar and a phase installed on the outlet side -changeover switch) there are four variants of connecting a consumer to the busbar, i.e. for lights, for example, there are four possible variants of switching, dimming and lighting moods with a small volume and reduced expenditure on devices (and their costs).