AT512697A2 - 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) is electrically insulated from the one second electrically conductive pole, preferably a negative pole (10), forming the ball head housing (3), which is electrically conductively connected to the ball socket holder (4) by an insulating element (11)

Description

1 1 • 0 & 20Ϊ3 102013/50212

description

Rotatable illuminant holder Technical field

The invention relates to a lamp holder for a lamp, in particular a lamp holder with a rotatable and pivotally mounted ball joint.

Background of the invention

Various 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 used as so-called MSVA (museum, shop, showcase or accent) lighting to solve different lighting tasks with adjustable, application-related light intensity distribution. Usually, power connection cables for the lamp holders are used on such rotatable and laterally pivotable lights.

Each rotatably mounted bulb holder is therefore equipped with a rotation, for example, in accordance with the standard of the German Institute for Standardization (DIN standard) 60598-1, to prevent a lamp head can be rotated more than 360 ° about its own axis. This prevents the power supply cable from being twisted so much that it will break and cause damage to the lamp as well as a risk of injury to a user of such a lamp due to a broken, faulty power cable.

Especially with very small luminaires, which are equipped with LED bulbs, it is often not possible for reasons of space or due to design requirements, to integrate a twist in a provided with a conventional power supply cable lamp head. However, such lights must not be put into operation due to the applicable safety standards and standards, which is a disadvantage of the known prior art such rotatable lights. 2

It is thus an object of the present invention to provide a bulb holder which allows rotation of the bulb by more than 360 ° relative to the bulb, without affecting the power supply or the safety of the bulb,

This object is achieved in an inventive lamp holder according to the preamble of claim 1 with 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 ball head housing with a movably mounted contact pin, which forms a first electrically conductive pole, preferably a positive pole, equipped, wherein the contact pin of the second electrically conductive pole, preferably a negative terminal, forming ball head housing, which with the Ball socket holder is electrically connected, is electrically insulated by a Isoliemngselement.

In a luminous means holder according to the invention, a first electrically conductive pole of a current connection is formed by a contact pin, which is movably mounted in the ball head housing, for a luminous means mounted by means of a ball joint. In a rotation 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 with different polarity, in particular within the ball head housing are electrically isolated from each other. For this purpose, at least one insulating element is provided in order to isolate the leads of the two electrically conductive poles to the light source according to each other.

With such sliding contacts between the contact pin and a live conductor on the one hand and between the ball head housing and the ball socket holder on the other hand, a wireless power connection for the light source is achieved, which allows a safe twistable and laterally pivotable current-carrying connection of the lamp with a power supply of the lamp without a twist. 3 3 28-O & 2013 H52013 / 50212

Suitably, in a lamp holder according to the invention, the at least one ball joint in a current-carrying support profile fastened, the contact pin is electrically connected to a first electrical conductor of the support profile and the ball socket holder is 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 support profile, preferably a negative terminal. Upon rotation or lateral pivoting of the ball head housing of the movably mounted contact pin is pressed in each case against the current-carrying support profile and thus maintain a conductive connection.

Advantageously, in a lamp according to the invention, the at least one ball joint in a current-carrying 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 a Weiteibildung 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 bracket profile. Thus, it is possible, a light source, which is rotatable about a rotation angle and laterally pivotable about a central position on the lamp, also further back and forth in the longitudinal direction of a support profile, the two electrical conductors with different polarity by means of sliding contacts in a conductive connection stand to the two conductive poles of the lamp.

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

In this embodiment, with two or more contact pins per ball-headed housing advantageously higher currents for the operation of the or of the bulbs can be 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 °. 4 4 28-03-2013 Νθ20Ϊ3 / $ 0212

Thus, in a bulb holder according to the invention, the ball-and-socket housing can be rotated in the ball socket holder by any desired angle both in the clockwise direction and in the counterclockwise direction.

It is preferred to carry out a lamp holder according to the invention with a ball head housing which is laterally pivotable in the ball socket holder from its central position determined by the axis of rotation by a pivoting angle, in particular from 0 ° to 30 °.

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 support profile of the lamp.

Appropriately, 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 Kontaktstifi to prevent unwanted short-circuit current between the contact pin and the ball head housing.

In one embodiment of the invention, each contact pin with a contact spring is resiliently biased in a light-emitting device according to the invention holder.

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 conduction is ensured even during the movement of the ball joint.

In a preferred embodiment of the invention, at least one light source is an 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. 5 5 Üilp [10 2013/50212

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

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

In this embodiment, for example, several lights spots are each provided with one or more bulbs. The luminaire spots are each movable 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.

In this embodiment, for example, the arrangement of the one or more lamps is reversed on the lamp. Here, a lamp housing is attached to the ball socket holder, in which one or more lamps are arranged.

Further details, features and advantages of the invention will become apparent from the following explanation of exemplary embodiments schematically illustrated in the drawings. 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 variant of a lamp according to the invention with a mounting profile; - Fig. 4 in an isometric view obliquely from above a fourth embodiment of a lamp according to the invention with a lamp 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 ball joint 5, the ball head housing 3 is equipped with a movably mounted pin 6. The movably mounted contact pin 6 is connected to a current-carrying 6 6 28-03-2013 (1Ö 2013/50212

The support profile 7 forms a first electrical conductor 8B for the contact pin 6. The contact pin 6 is here provided with a contact spring 9, which the contact pin 6 biases against the first electrical conductor 8 B and ensures an electrically conductive connection of the contact pin 6 with the conductor 8 B, even during a movement of the ball joint 5. 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 support profile 7 forms with the ball socket holder 4, a second electrical conductor 10B.

The first electrical conductor 8B, which is electrically conductively connected to the positive pole 8, opens into a power connector 8A. The second electrical conductor 10B, which is electrically connected to the negative terminal 10, opens into a power connector 10A. The two power connectors 8A and 10A are here combined in a connector housing and attached to one end of the support profile 7, that several identical Lichten 1 each with the power connector 8A and 10A to corresponding connection connectors 8C and 10C, which at each opposite end of the support profile 7 are attached, can be connected in series. Thus, advantageously only one power supply for the operation of several series-connected lights 1 is required.

In order to avoid a short circuit, the two electrical conductors 8 B and 10 B are electrically insulated along the mounting profile 7. Furthermore, an insulating element 11 is arranged 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 printed circuit board 14 is attached to the support profile 7. 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 pole 10 of the power connection of the luminous means 2.

The first electrical conductor 8B, which is polarized as a positive pole, is arranged along the mounting profile 7 such that the contact pin 6 is always in current-conducting connection with the first electrical conductor 8B. For this purpose, for example, the first electrical conductor 8 B is formed as an electrically conductive contact surface which is fixed to the inside of the support profile 7. 28-03 * 2013

[10 2013/50212 7

At a rear side of the lamp 1, the 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 light-permeable cover 18 of the luminous means 2. The lens holder 16 here essentially has a reflector shape for an outgoing light beam 19. By way of example, lenses 17 can be fastened to the lens holder 16 for glare-freeing the emerging light beam 19. The ball head housing 3 is in the ball socket holder 4 about an axis of rotation 20 by an arbitrary angle of rotation 21, which may also be a multiple of a full revolution, thus greater than 360 °, rotatable. An anti-rotation, so a forced limitation of the rotation angle 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 by a pivot angle 22 is laterally pivotable. The pivot angle 22, which is drawn here, starting from the means constituting a perpendicular, for example, is 30 °.

Fig. 2 relates to a lamp 1 according to the invention with a mounting profile 7, in which a fixed to a ball head housing 3 bulbs 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, with the ball head housing. 3 is positively connected, the bulb 2 with the power connector 10A. The positive pole 8 and the negative pole 10 or the leads of the two electrical conductors 8B and 10B are separated from each other in the ball head housing 3 by insulation elements 11.

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 Kontaktfedem 9 against the current-carrying Halterungsprofrl 7 or biased against this. When moving the light source 2 or ball head housing 3 in the longitudinal direction 23 of the support profile 7, the two contact pins 6 each form a sliding contact. The two contact pins 6 are each electrically conductively connected to one another and to the first electrical conductor 8B of the mounting profile 7. Thus, higher current intensities can be applied in the embodiment variant 8 (102013/50212 shown in FIG. 3) than is the case with an embodiment according to FIG. 2.

FIG. 4 illustrates a variant of a luminaire 1A in which luminous means 2 are provided in a luminaire housing 24, wherein the luminaire housing 24 is fastened to a ball socket holder 5. The arranged inside the ball socket holder 5 ball head housing 3 serves here for receiving 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 carry out numerous other, not explicitly shown embodiments on lights. 928-03-2013 2013/50212

List of position symbols: 1 Light (or variant 1A) 2 Lamps 3 Ball head housing 4 Ball socket holder 5 Ball joint 6 Contact pin 7 Bracket profile 8 First electrically conductive pole (positive pole) 8A Power 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 Secondary conductor electrical connector (negative pole) 1 OB Second electrical conductor (negative pole) IOC Connector (negative pole) 11 Insulation element 12 Insulation sleeve 13 Fixing 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 Swivel angle 23 Lengthwise direction of the support profile (arrow direction) 24 Luminaire housing 25 Suspension

Claims (11)

10 10 28 ^ 03-2013 10 2013/50212 1. Lamp holder for a lamp (1; 1A), comprising at least one ball joint (5), which by a in a ball socket holder (4) rotatably and pivotally fastened ball head housing (3) formed characterized in that the ball head housing (3) is provided with a movably mounted contact pin (6) which forms a first electrically conductive pole (8), the contact pin (6) being provided by the one second electrically conductive pole (10). forming ball head housing (3), which is electrically conductively connected to the ball socket holder (4) is electrically insulated by an insulating element (11). 2. Lamp holder according to claim 1, characterized in that 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 (8 B) of the support profile (7) and the ball socket holder (4) is electrically connected to a second electrical conductor (10B) of the holder profile (7). 3. Lamp holder according to claim 2, characterized in that 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, on the first electrical Conductor (8B) is applied. 4. Lamp holder according to one of claims 2 to 3, characterized in that the ball head housing (3) each comprises two or more contact pins (6), which are electrically conductively connected to each other and to the first electrical conductor (8B) of the support profile (7) , 5. Lamp holder according to one of claims 1 to 4, characterized in that the ball head housing (3) in the ball socket holder (4) about an axis of rotation (20) about a rotation angle (21) is rotatable and determined by its by the axis of rotation (20) Central position about a pivot angle (22) is laterally pivotable. 11 ed: 28-03 · [E015 [102013/50212 6. Lamp holder according to one of claims 1 to 5, characterized in that the or each contact pin (6) is designed with a surrounding insulating sleeve (12). 7. Lamp holder according to one of claims 1 to 6, characterized in that each contact pin (6) with a contact spring (9) is resiliently biased 8. Luminaire (1, 1A) with a light source holder according to one of claims 1 to 7, and at least one light source (2), characterized in that the at least one light source (2) is an LED. 9. luminaire (1; 1A) according to claim 8, characterized in that the at least one lighting means (2) is provided with a transparent cover (18). 10. Lamp (1, 1A) according to one of claims 8 to 9, characterized in that at least one lighting means (2) in a ball head housing (3) is integrated. 11. Luminaire (1A) according to one of claims 9 to 10, characterized in that at least one light-emitting means (2) in one with the ball socket holder (4) connected to the lamp housing (25) is arranged.