Luminaire having a plug contact, the use of a luminaire of this kind, and a connector for a luminaire of this kind

Abstract

A luminaire (1) having a preferably flat light exit region (2) that is surrounded by a rectangular light frame (10), wherein the luminaire frame (10) spans a first plane (E) and has a frame height (H) that is perpendicular to the first plane (E) and, at one of its corners (11), a beveled surface (12) in which a plug contact (30) is arranged, and an electromechanical plug connector for a luminaire of this kind are provided.

Claims

1. A luminaire (1) having a flat light exit region (2) that is surrounded by a rectangular luminaire frame (10), wherein the rectangular luminaire frame (10) spans a first plane (E) and has a frame height (H) that is perpendicular to the first plane (E) and, at one of its corners (11), a beveled surface (12) in which a plug contact (30) is arranged, wherein the beveled surface (12) is angled such that a plane defining the beveled surface (12) is non-parallel and non-perpendicular with respect to the first plane (E).

2. The luminaire (1) according to claim 1, characterized in that the beveled surface (12) extends at an angle (W) of at least approximately 45° to the first plane (E).

3. The luminaire (1) according to claim 2, wherein the angle (W) is between approximately 45° and approximately 60° to the first plane (E).

4. The luminaire (1) according to claim 1, characterized in that the beveled surface (12) is trapezoidal when viewed from above, the shorter side (14) of the trapezoid facing toward the light exit region (2) and the longer side (16) of the trapezoid facing away from said region.

5. The luminaire (1) according to claim 1, characterized in that that the beveled surface (12) comprises an opening (15) or recess in which the plug contact (30) is located.

6. The luminaire (1) according to claim 5, characterized in that the opening (15) or recess is a polygon.

7. The luminaire (1) according to claim 6, wherein the opening (15) or the recess comprises a hexagonal pocket.

8. The luminaire (1) according to claim 5, characterized in that the plug contact (30) located in the recess (15) or opening comprises sliding contacts (31).

9. A use of the luminaire according to claim 1, as a machine luminaire.

10. An electromechanical plug connector having a plug (40) for arranging on a cable (60) and having a mating plug (50) for arranging on an electrical device, wherein the electrical device comprises the luminaire according to claim 1, wherein the plug (40) comprises a contact region (50) for establishing mechanical contact with the mating plug and for establishing electrical contact between contacts of the plug (40) and contacts of the mating plug and additionally comprises a connection region (70) for connection to the cable (60), which region extends at an angle from the contact region (50), wherein the plug (40) and the mating plug comprise means for forming a form fit when force is applied to said means and when the plug (40) and mating plug are connected, which are designed such that the form fit can be established in different positions that each lead in different extension directions of the connection region (70) of the plug (40) in the room, wherein the plug (40) and/or the mating plug also comprise means for resiliently applying a force to the means for forming the form fit so that the form fit can be transferred from a first position of the different positions to a second position of the different positions by the force being temporarily overcome, and wherein the contacts of the plug (40) and/or the contacts of the mating plug are designed such that, in all positions in which the form fit is established, an electrical contact is established at least between some contacts of the mating plug and some contacts of the plug (40).

11. The electromechanical plug connector according to claim 10, characterized in that the contact region (50) and the connection region (70) are at an angle (w) of at most approximately 45° from one another other.

12. The electromechanical plug connector according to claim 11, wherein the angle (w) is between approximately 30° and approximately 45°.

13. The electromechanical plug connection according to claim 10, characterized in that the electromechanical plug connector can be rotated.

14. The electromechanical plug connector according to claim 13, characterized in that the electromechanical plug-in connection comprises a plurality of latching positions, the latching positions each being assigned to a different rotational position of the plug (40).

15. The electromechanical plug connector according to claim 14, characterized in that the latching connection is in operative connection on the plug (40) and an assigned insert groove (18a) in the opening (15) or a recess of the rectangular luminaire frame (10) by means of an annular spring (56).

Description

(1) The invention is explained in more detail below with reference to drawings that disclose embodiment examples. In the drawings:

(2) FIG. 1 is an embodiment example of a luminaire;

(3) FIG. 2 shows the plug contact of the luminaire from FIG. 1 in an enlarged view with the plug removed;

(4) FIG. 3 is a partially opened view of the connection between the plug contact and plug of an embodiment of an electromechanical plug connector for a luminaire of this kind;

(5) FIG. 4 is an exploded view of the plug of the electromechanical plug connection from FIG. 3;

(6) FIG. 5 shows control electronics of a luminaire having a plug contact that is shown in FIG. 2; and

(7) FIG. 6 shows the luminaire from FIG. 1, for which different positions of the plug are shown schematically.

(8) The same components are shown with the same reference symbols throughout the drawings.

(9) FIG. 1 is an embodiment example of a luminaire 1. The luminaire 1 has a substantially flat light exit region 2, which is enclosed by a substantially rectangular luminaire frame 10. The luminaire frame 10 spans a first plane E on which the frame height H is perpendicular. In order to supply the luminaire 1 with power a plug 40 is provided, which is electrically connected to a plug contact 30 (not shown in FIG. 1) of the luminaire 1 which is provided on a beveled surface 12 that is arranged at one of the corners 11 of the luminaire 1.

(10) It is particularly clear in FIG. 2, in which this portion of the luminaire 1 is shown with the plug 40 removed, that the beveled surface 12 extends at an angle W of at least approximately 45° to the first plane E. The beveled surface 12 is trapezoidal when viewed from above, the shorter side 14 of the trapezoid facing toward the light exit face, that is, the face on which the light exit region 2 is located, and the longer face 16 of the trapezoidal shape facing away from said region.

(11) The plug contact 30 is located in an opening 15 or recess, which is a hexagonal pocket, and comprises sliding contacts 31. As is shown by way of example in FIG. 4, said contact can be integrated, in particular, on a printed circuit board 32 which carries the control electronics 33 for the luminaire 1. In order to arrange such control electronics 33 in the interior of the luminaire, it can also be useful for a face 10a of the luminaire frame 10, which abuts the beveled surface, to have a U-profile having a base 17 of the U that extends in parallel with the frame height and having limbs 19 that are situated in the plane of the light exit region and in the plane of the rear face of the luminaire 1 which is opposite the light exit region. This allows the luminaire frame 10 to form with its face 10a a housing portion in which the control electronics 33, which are subsequently virtually located in the interior of the U-profile, are integrated.

(12) FIG. 3 is a partially opened view of the connection between plug contact 30 and plug 40 of an embodiment of an electromechanical plug connector, such as that which can be used with a luminaire 1.

(13) The electromechanical plug connector comprises a plug 40 for arranging on a cable 60 and a mating plug, which, in the embodiment shown, is formed by the plug contact 30 having sliding contacts 31 (not shown in FIG. 30) and the region of the beveled surface 12 that surrounds said contact and forms the walls 18 of the opening 15.

(14) The plug 40, which is shown in an exploded view in FIG. 4, to which reference is also made, comprises a contact region 50 for establishing mechanical contact with the mating plug and for establishing electrical contact between the contacts of the plug 40 and the contacts of the mating plug that are formed by the sliding contacts 31 of the plug contact 30 and additionally comprises a connection region 70 for connection to the cable 60, which region extends at an angle from the contact region 50.

(15) The angle w, at which the contact region 50 is angled relative to the connection region 70, is selected here by way of example such that, with a center axis A of the connection region 70 aligned in parallel with the height H of the luminaire frame, the center axis M of the contact region 50 is perpendicular on the beveled surface 12 and thus extends in the plugging direction. Correspondingly, the angle w results from the above-defined angle W by the relationship w=90°−W. Correspondingly, angles that are at most approximately 45° are preferable and angles between approximately 30° and approximately 45° are particularly preferable.

(16) The contacts of the plug 40 can be designed, in particular, as a group of spring-loaded contact pins 57 that are fastened in the interior of a tubular portion 51 of a plug housing 52 to a printed circuit board that is oriented perpendicularly to the plug-in direction of the plug 40 and is arranged in the contact region 50 inside the plug housing 52 and are pressed against the sliding contacts 31 by the springs of said contact pins when they are inserted. The spring-loaded contact pins can then be brought into electrical contact inside the plug housing 52, directly or via conductor track connectors provided on the circuit board, with the angled end portions 59a of connection pins 59 of a contact support 71 that is arranged in the angled connection region 70 or forms said connection region 70. The connection pins 59 are then in turn connected to the wires of the cable 60 via the cable-side end portions 59b of said pins.

(17) The plug 40 and the mating plug also comprise means for forming a form fit when force is applied to said means and when the plug 40 and mating plug are connected, which are designed such that the form fit can be established in different positions that each lead in different extension directions of the connection region of the plug 40 in the room. On the side of the mating plug, said means is the opening 15 designed as a hexagonal pocket. On the side of the plug 40, the tubular portion 51 is surrounded in its end region opposite the plug-in direction by a peripheral hexagonal projection 53, which is adapted to the geometry of the hexagonal pocket and comprises a bevel 53a for aiding insertion into the hexagonal pocket. When the hexagonal projection 53 is inserted into the hexagonal pocket and fixed there by a force, a form fit is established between these components that prevents the plug 40 from rotating relative to the mating plug. There are, of course, six different positions in which this form fit can be established.

(18) The tubular portion 51 has two circumferential grooves 54a, 54b in its outer wall. An O-ring 55 that produces a sealing effect when the electromechanical plug connector is assembled is arranged in the groove 54a. In the groove 54b, an annular spring 56 is mounted that, by interacting with a circumferential insert groove 18a in the wall 18 of the opening 15 of the beveled surface 12 associated with the frame 11, which opening is formed by the hexagonal pocket, resiliently applies a force to the described means for forming the form fit so that said force holds the hexagonal projection 53 in the hexagonal pocket or pulls it into said pocket.

(19) Therefore, a latching connection is formed here by means of the annular spring 56 on the plug 40 and an associated insert groove 18a in the wall 18 of the opening 15 or recess in the luminaire frame 11, which is designed as a hexagonal pocket, which are each operatively connected to one another.

(20) When a rotational movement of the plug 40 about the center axis of the hexagonal pocket starting from a latched position is initiated, the interaction of the bevel 53a with the outer edge of the hexagonal pocket generates a force that, as soon as it temporarily overcomes the resilient force of the plug 40 thanks to the interaction of the annular spring 56 and insert groove 18a in the wall 18, pushes the plug 40 out of the form fit so that the plug 40 can rotate relative to the mating plug.

(21) If the next position in which the hexagonal edge 53 can be received in a snug fit in the hexagonal pocket is reached, the interaction of the bevel 53a with the edge of the hexagonal pocket does not occur, and the plug 40 is pulled back into the hexagonal pocket, said plug then being transferred from a first position of the different positions to a second position of the different positions by the resilient force being temporarily overcome.

(22) Correspondingly, the six positions in which the hexagonal edge 53 can be received in a snug fit in the hexagonal pocket form six latching positions of the electromechanical plug connector that can be transferred into one another when the electromechanical plug connector is plugged in.

(23) The contacts of the plug 40, in this example the spring-loaded contact pins 57, are also rotated and come into contact with the sliding contacts 31 again at a different point on the sliding contacts 31, the geometry of which is designed such that, in all positions in which the form fit is established, electrical contact is established at least between some contacts of the mating plug and some contacts of the plug.

(24) It should also be noted that this in particular not only achieves a change in the cable run direction starting from the luminaire, as shown schematically in FIG. 5 with the different aligned plugs 40, 40′, and 40″ that are each identical to the plug 40 and are merely set in another one of the latching positions relative to the mating plug.

(25) It also makes it possible, in principle, to achieve a switching function. A switching effect of this kind occurs, for example, if the point of the sliding contacts 31 that is contacted after a change of this kind in the latching position is not electrically conductively connected to the point of the sliding contacts 31 that is contacted before the change, and therefore another component of the control electronics 33 is then supplied with power and/or another spring-loaded contact pin 57 is brought into contact with the sliding contact 31, and therefore a different signal or a current with different parameters is fed to a given component of the control electronics 33.

LIST OF REFERENCE SYMBOLS

(26) 1 luminaire 2 light exit region 10 luminaire frame 10a face 11 corner 12 beveled surface 14 shorter face 15 opening 16 longer face 17 base 18 wall 18a insert groove 19 limb 30 plug contact 31 sliding contact 32 printed circuit board 33 control electronics 40, 40′, 40″ plug 50 contact region 51 tubular portion 52 plug housing 53 hexagonal projection 53a bevel 54a, 54b groove 55 O-ring 56 annular spring 57 contact pin 58 printed circuit board 59 connection pin 59a angled end portion 59b cable-side end portion 60 cable 70 connection region 71 contact support E plane M center axis W angle w angle