AT512697B1 - Rotatable lamp holder and light - Google Patents

Abstract

The invention relates to a lamp holder for a lamp (1; 1A), comprising at least one ball joint (5), which by a ball socket holder (4) rotatably and pivotally fastened ball head housing (3) is formed, wherein the ball head housing (3) with a movably mounted contact pin (6) which forms a first electrically conductive pole, preferably a positive pole (8), the contact pin (6) being formed by the one second electrically conductive pole, preferably a negative pole (10), forming a ball head housing (3 ), which is electrically conductively connected to the ball socket holder (4), is electrically insulated by an insulating element (11), wherein the at least one ball joint (5) in a current-carrying support profile (7) can be fastened, wherein the contact pin (6) electrically conductive with a first electrical conductor (8B) of the support profile (7) and the ball socket holder (4) electrically with a second electrical The conductor (10B) of the support profile (7) is connected, wherein the at least one ball joint (5) in the current-carrying support profile (7) in the longitudinal direction (23) is slidably fastened, wherein the contact pin (6) forms an electrically conductive sliding contact, the on the first electrical conductor (8B) is applied.

Description

description

ROTATABLE LIGHT HOLDING TECHNICAL AREA

The invention relates to a lamp holder for a lamp, in particular a lamp holder with a rotatably and pivotally mounted ball joint, wherein the ball head housing is provided with a movably mounted contact pin, which forms a first electrically conductive pole, wherein the contact pin of the one second electrically conductive pole forming Ball head housing, which is electrically conductively connected to the ball socket holder is electrically insulated by an insulating element, wherein the at least one ball joint in a current-carrying support profile can be fastened, wherein the contact pin electrically conductive with a first electrical conductor of the support profile and the ball socket holder electrically with a second electrical conductor of the support profile is ver¬bunden.

BACKGROUND OF THE INVENTION

Different embodiments of luminaires are known from the prior art, which comprise a ball joint, which is formed from a ball socket holder with a rotatable and laterally pivotally mountable ball head housing therein. For example, such lights are called MSVA (Museums-, Shop -, Showcase or accent) lighting used to solve with adjustable, application-related Lichtstärke¬ distribution different lighting tasks.

EP 0 188 736 A2 discloses a luminaire with a magnetic rail and a magnetic ball, wherein the magnetic ball can be arranged at any point of the magnetic rail.

Usually, power connection cables for the lamp holders are used on such rotatable and laterally pivotable Leuch¬ten.

Each rotatably mounted bulb holder is therefore with a torsion spielsweise according to the standard of the German Institute for Standardization (DIN standard) 60598-1 auszusstatten to prevent a lamp head more than 360 ° about its own axis can be turned. Thus, the power supply cable is prevented from being twisted so much that it breaks and damage to the lamp as well as a broken, faulty power cord may result in a risk of injury to a user of such a light.

Especially for very small luminaires, which are equipped with LED bulbs, it is often not possible for reasons of space or due to design constraints, to integrate a twist in a versode with a conventional power cable light head. However, such luminaires must not be put into operation due to applicable safety standards and standards, which is a disadvantage of the known prior art of such rotatable luminaires.

It is therefore an object of the present invention bereit¬zustellen a bulb holder, which allows rotation of the bulb by more than 360 ° relative to the lamp, without affecting the power supply or the safety of the lamp is impaired.

This object is achieved with a lamp holder according to the invention according to the preamble of claim 1 having the features of the characterizing part of claim 1. The subclaims relate to further advantageous embodiments of the invention.

It is advantageous in a lamp holder according to the invention the Kugelkopfgehäu¬se with a movably mounted contact pin, which forms a first electrically conductive pole, preferably a positive pole, equipped, wherein the contact pin of the one second electrically conductive pole, preferably a negative pole, forming spherical head housing which is electrically connected to the ball socket holder, is electrically insulated by an insulating member.

In a lamp holder according to the invention a first electrically conductive pole of a power connector is formed by a contact pin, which is movably mounted in the ball head housing for a stored by means of a Kugelge¬ bulb bulbs. In a Verdre¬hung or pivoting of the ball head housing of the movably mounted contact pin is pressed against a current-carrying conductor.

The second electrically conductive pole of the power connector for the lamp is formed by the ball head housing itself, which is electrically connected to the ball socket holder.

It is essential that the two electrical conductors insbe¬sondere with different polarity are electrically insulated from each other within the ball head housing. For this purpose, at least one insulating element is provided in order to insulate the supply lines of the two electrically conductive poles for the luminous means correspondingly from one another.

With such sliding contacts between the contact pin and a current-carrying conductor on the one hand and between the ball head housing and the ball socket holder ande¬rerseits a wireless power connection for the light source is achieved, without a Ver¬drehschutz a securely rotatable and laterally pivotable current-carrying connection of the light source with a power supply line the lamp allows.

In a lamp holder according to the invention, the at least one Kugelge¬lenk in a current-carrying support profile can be fastened, wherein the contact pin is electrically connected to a first electrical conductor of the support profile and the Kugelpfannenhalte¬rung electrically connected to a second electrical conductor of the support profile.

In this embodiment, a current-carrying support profile is provided in a luminaire, wherein a contact pin is in conductive connection with a first electrical conductor, which preferably forms a positive pole. The ball socket holder is connected to a second electrical conductor of the holder profile, preferably a negative pole. Upon rotation or lateral pivoting of the ball-head housing, the movably-mounted contact pin is pressed against the current-carrying support profile, thus maintaining a conductive connection.

In a lamp according to the invention, the at least one ball joint in einstromführenden support profile in the longitudinal direction displaceable fastened, wherein the contact pin forms an electrically conductive sliding contact, which rests on the first electrical conductor.

In one embodiment of the invention, a ball joint, so both the ball socket holder and the ball head housing, each slidably mounted in the longitudinal direction in a current-carrying mounting profile. Thus, it is possible, a light source, which is rotatable about a rotation angle and laterally pivotable about a central position attached to the light, also further back and forth in the longitudinal direction of a support profile, wherein the two electrical conductors with different polarity in each case by Schleifkontak¬ten in conductive connection stand to the two conductive poles of the lamp.

Particularly suitably comprises in a lamp holder according to the invention, the ball head housing each two or more pins, which are electrically conductively connected to each other and with the first electrical conductor of the support profile.

In this embodiment, with two or more contact pins per ball head housing kön¬nen advantageously higher currents for the operation of the or the bulbs are applied.

In a lamp holder according to the invention, the ball head housing in the ball socket holder is rotatable about an axis of rotation by a rotation angle greater than 360 °.

Thus, in a bulb holder according to the invention, the ball head housing is rotatable about any angle of rotation in both the clockwise and counterclockwise directions in the cup holder.

It is preferred to carry out a lamp holder according to the invention with a Kugelkopfge¬ housing, which in the ball socket holder from its determined by the axis of rotation center position by a pivot angle, in particular from 0 ° to 30 °, laterally ver-swiveled.

Depending on the installation position of the luminaire, the central position, to which the lateral pivot angle of the ball head housing is related, for example, be a perpendicular to a mounting profile of the lamp.

Suitably, in the case of a lamp holder according to the invention, the or each contact pin is designed with an insulating sleeve surrounding it.

In this embodiment, insulating sleeves are provided around each contact pin to prevent an undesirable short-circuit current between the contact pin and the ball head housing.

In one embodiment of the invention, each contact pin is biased resiliently movable with a contact spring in a Leuchtmittelhalte¬rung invention.

The contact spring biases the contact pin in each case against an electrical conductor or against a current-carrying support profile. Thus, an uninterrupted electrical line is ensured even during the movement of the ball joint.

In a preferred embodiment of the invention at least one lamp is a LED in a luminaire.

In order to obtain a compact luminaire according to the invention, it is provided in a development of the invention to provide the at least one luminous means with a translucent cover.

In this embodiment, the design of a luminaire according to the invention have no limits. Different materials can be used as translucent coverings.

In a further preferred embodiment of the invention, at least one light source is integrated in a ball head housing in a luminaire.

In this embodiment, for example, several lights spots are each provided with one or more bulbs. The lighting spots are each movably alignable with a ball joint.

A variant of the invention comprises a luminaire, in which at least one luminous means is arranged in a luminaire housing connected to the ball socket holder.

For example, in this embodiment, the arrangement of the one or more illuminants on the luminaire is reversed. Here is attached to the ball socket holder a Leuchtenge¬ housing, in which one or more lamps are arranged.

Further details, features and advantages of the invention will become apparent from the following explanation of schematically illustrated in the drawings Ausführungsbeispie¬len. 1 shows in a sectional view from the side a first embodiment variant of a lamp according to the invention with a mounting profile; 2 shows in a sectional view from the side a second embodiment of a luminaire according to the invention with a mounting profile; 3 shows in a sectional view from the side a third embodiment of a luminaire according to the invention with a mounting profile; [0039] FIG. 4 is an isometric view obliquely from above of a fourth embodiment of a luminaire according to the invention with a luminaire housing.

FIG. 1 illustrates a first embodiment of a luminaire 1 according to the invention. The luminaire 1 comprises a luminous means 2 in a luminous means holder, which is provided in a ball head housing 3. The ball head housing 3 together with a ball socket holder 4, in which it is rotatably mounted and laterally pivotally mounted, a Kugelge¬lenk 5. The ball head housing 3 is equipped with a movably mounted contact pin 6. The movably mounted contact pin 6 is provided with a current-carrying support profile The support profile 7 forms a first electrical conductor 8B for the Kon¬taktstift 6. The contact pin 6 is here provided with a contact spring 9, which the contact pin 6 against the first electrical conductor 8B biases and an electrically conductive connection of the contact pin 6 with the conductor 8B even during a movement of the ball joint 5 gewähr¬leistet. A second electrically conductive pole, here a negative pole 10, forms the ball head housing 3, which is electrically conductively connected to the ball socket holder 4. The Halte¬rungsprofil 7 forms with the ball socket holder 4, a second electrical conductor 10B.

The first electrical conductor 8B, which is electrically connected to the positive pole 8, opens into a power connector 8A. The second electrical conductor 10B, which is electrically conductively connected to the negative pole 10, opens into a power connector 10A. The two power connectors 8A and 10A are here zusammen¬gefasst in a connector housing and attached to one end of the support profile 7 that several identical lights 1 each can be connected in series with the power connector 8A or 10A to corresponding Verbin¬dungsstecker 8C and 10C, which are attached to the respective opposite end of the Halterprofile7. Thus, advantageously only one power supply is required for the operation of a plurality of lamps 1 connected in series.

In order to avoid a short circuit, the two electrical conductors 8B and 10B are electrically insulated along the support profile 7. Furthermore, an insulating member 11 is disposed between the contact pin 6 and the ball head housing 3. The insulation element 11 here has a shape of an insulation sleeve 12, which surrounds the contact pin 6.

By means of a fastening screw 13, a circuit board 14 is attached to the Halterungsprofil7. The fastening screw 13 further serves to feed the second electrical conductor 10B through the printed circuit board 14 into the mounting profile 7 and further over the ball head housing 3 into the ball socket holder 4, wherein the second electrical conductor 10B forms the negative terminal 10 of the current connection of the luminous means 2.

The first electrical conductor 8B, which is poled as positive pole, is arranged along the Halte¬rungsprofils 7 so that the contact pin 6 with the first electrical conductor 8Bimmer is electrically conductively connected. For this purpose, for example, the first electrical conductor 8 B is formed as an electrically conductive contact surface, which is fastened to the inside of the Halterungspro¬fils 7.

At a rear side of the lamp 1, the printed circuit board 14 is provided with a protective cover 15. The ball head housing 3, which comprises a luminous means 2, here has a lens holder 16 for receiving optical lenses 17, which form a translucent cover 18 of the luminous means 2. The lens holder 16 here essentially has a reflector shape for an outgoing light beam 19. For example, lenses 17 for masking the outgoing light beam 19 may be attached to the lens holder 16. The Kugel¬kopfgehäuse 3 is rotatable in the ball socket holder 4 about an axis of rotation 20 by any rotational angle 21, which may also be a multiple of a full revolution, thus greater than 360 °. An anti-rotation, so a forced limitation of the angle of rotation 21, as is required in lights, which are provided with conventional power cables, is not required here. Furthermore, the ball head housing 3 in the ball socket holder 4 is laterally pivotable about a pivot angle 22. The swivel angle 22, which is drawn here from the perpendicular forming a central position, is for example 30 °.

Fig. 2 relates to a lamp 1 according to the invention with a support profile 7, in which einan a ball head housing 3 attached light source 2 together with the ball socket holder 2 in the longitudinal direction 23 of the support section 7 back and forth. The ball head housing 3 is provided with a contact pin 6 which is in contact with the current-carrying support profile 7. The contact pin 6 forms the supply line of the first electrical conductor 8B from the power connector 8A in the ball head housing 3 and on to the positive terminal 8. The second electrical conductor 10B, which forms the negative terminal 10 of the lamp 2, connects by means of the ball socket holder 4, the ball head housing 3 in positive connection stands, the bulb 2 with the power connector 10A. The positive pole 8 and the negative pole 10bzw. the leads of the two electrical conductors 8B and 10B are separated in the ball head housing 3durch insulation elements 11 from each other.

Fig. 3 differs from the lamp shown in Fig. 2 in that here the lamp 1 is equipped with a ball head housing 3, which comprises two pins 6. Both contact pins 6 are pressed with contact springs 9 against the current-carrying Halte¬rungsprofil 7 or biased against this. When moving the lamps 2bzw. Ball head housing 3 in the longitudinal direction 23 of the support profile 7, the two Kon¬taktstifte 6 each form a sliding contact. The two contact pins 6 are electrically conductively connected to one another and to the first electrical conductor 8B of the mounting profile 7. Thus, in the embodiment variant shown in FIG. 3, higher current levels can be applied than is the case with an embodiment according to FIG.

Fig. 4 shows an embodiment of a lamp 1A, are provided in the light-emitting means 2 inein Leuchtenem a housing 24, wherein the lamp housing 24 is fixed to a ball socket holder 5. The arranged inside the ball socket holder 5 ball head housing 3 serves here to receive a suspension 25, with the lamp 1A, for example, as a ceiling light on a building ceiling can be fastened.

In the context of the invention, it is conceivable to perform numerous other, not explicitly darge here shown embodiments of lights. LIST OF POSITION SIGNS: 1 light (or variant 1A) 2 light bulb 3 ball head housing 4 ball socket holder 5 ball joint 6 contact pin 7 support profile 8 first electrically conductive pole (positive pole) 8A current connector of the first electrical conductor (positive pole) 8B first electrical conductor (positive pole) 8C connector (Positive pole) 9 Contact spring 10 Second electrically conductive pole (negative pole) 10A Second electrical conductor power connector (negative pole) 10B Second electrical conductor (negative pole) 10C Connector (negative pole) 11 Insulation element 12 Insulation sleeve 13 Mounting screw 14 Circuit board 15 Protective cover 16 Lens holder 17 Optical lens 18 Cover 19 light beam (arrow direction) 20 rotation axis 21 rotation angle 22 pivoting angle 23 longitudinal direction of the support profile (arrow direction) 24 luminaire housing 25 suspension

Claims (9)

1. Lamp holder for a lamp (1, 1A), comprising at least one ball joint (5), which by a in a ball socket holder (4) rotatable and pivotable befes¬tigbares ball head housing (3) is formed, wherein the ball head housing (3) a movably mounted contact pin (6) which forms a first electrically conductive pole (8), the contact pin (6) being formed by the ball head housing (3) forming a second electrically conductive pole (10) which is in contact with the ball socket holder (4 electrically conductively connected by an insulating element (11), wherein the at least one ball joint (5) in a current-carrying support profile (7) can be fastened, wherein the contact pin (6) electrically conductively connected to a first electrical conductor (8B) of the Support profile (7) and the ball socket holder (4) is electrically connected to ei¬nem second electrical conductor (10B) of the support profile (7), d adurchgekennzeichnet that the at least one ball joint (5) in the current-carrying Halte¬rungsprofil (7) in the longitudinal direction (23) is fastened slidably, wherein the contact pin (6) forms an electrically conductive sliding contact on the first electrical conductor (8B) an¬ lies. 2. Lamp holder according to claim 1, characterized in that the Kugelkopf¬ housing (3) in each case two or more contact pins (6), which are mutually and with the first electrical conductor (8B) of the support profile (7) electrically conductive verbun¬den. 3. Lamp holder according to claim 1 or 2, characterized in that the Ku¬gelkopfgehäuse (3) in the ball socket holder (4) about an axis of rotation (20) by a rotation angle (21) is rotatable and from its by the axis of rotation (20) certain Mittellageum a pivot angle (22) is laterally pivotable. 4. Lamp holder according to one of claims 1 to 3, characterized in that the or each contact pin (6) is carried out with a surrounding insulating sleeve (12). 5. Lamp holder according to one of claims 1 to 4, characterized in that each contact pin (6) with a contact spring (9) is resiliently biased. A luminaire (1; 1A) with a luminous means holder according to one of claims 1 to 5, and at least one light source (2), characterized in that the at least one light means (2) is an LED. A luminaire (1; 1A) according to claim 6, characterized in that the at least one luminous means (2) is provided with a translucent cover (18). A luminaire (1; 1A) according to claim 6 or 7, characterized in that at least one luminous means (2) is integrated in a ball-head housing (3). 9. Luminaire (1; 1A) according to any one of claims 6 to 8, characterized in that at least one lighting means (2) in a with the ball socket holder (4) connected to light housing (24) is arranged. 4 sheets of drawings