DE202022100687U1 - Light, in particular switch cabinet light - Google Patents

Abstract

Light (1), in particular a control cabinet light, with a large number of light sources based on light-emitting diodes, consisting of an elongated light housing with a housing base body (2) and a translucent cover (3), means formed on the light housing for fastening the light (1), the The basic housing body (2) is designed like a trough and in the area of at least one front or narrow side (5) there is an electrical connection means in the form of a plug, a socket or a connection terminal (4), characterized in that at least one front end (5) of the Luminaire housing is formed by an end piece (6) which is held in a form-fitting manner both by the cover (3) and by the housing base body (2), with openings (7) in the end piece (6) for guiding (9) one end of an electrical connection cable ( 10) towards the connection terminal (4) located inside the light housing.

Description

The invention relates to a lamp, in particular a switch cabinet lamp, with a large number of lamps based on light-emitting diodes (LEDs), consisting of an elongated lamp housing with a housing body and a translucent cover, means designed on the lamp housing for fastening the lamp, with the housing body being designed like a trough and in the area at least one front or narrow side is provided with an electrical connection means in the form of a plug, a socket or a terminal according to the preamble of claim 1.

A generic switch cabinet light is, for example, from the German utility model DE 20 2016 002 732 U1 previously known. There, too, an elongated lamp housing with a housing body and a translucent cover is shown, and electrical connection elements are provided on the lamp housing. With the exception of an access area on the face side, a cover provided there encompasses a connection socket or a connection plug provided there.

The cover has at least one integrated button-like actuator that includes a nose-like extension. The nose-like extension is oriented in the direction of unlocking into the interior of the lamp housing, such that unlocking can be triggered immediately by pressing the actuating element and the respective plug-socket connection can be separated.

Also known are electrical connectors together with holding element, for example according to DE 20 2019 101 806 U1 . The connector there has at least one housing and electrical plug-in contact elements arranged in the housing and at least one latching element with which the connector can be coupled in a latching manner with a counterpart.

In addition, the plug connector has a holding element, which has a base body and a resiliently deflectable latching tab, which protrudes from the base body and includes the first latching element in the area protruding from the base body.

The design with a latching element ensures that it can dig into a mating connector, for example, and achieve a higher holding force. A too early triggering of a plug connection can be counteracted.

the DE 20 2014 103 395 U1 discloses a clamp for strain relief and/or for securing an elongate object passed through the clamp.

The clip has at least one base part and has a clamping part that can be attached to the base part. In addition, the clip has at least one first latching device formed with teeth. The clamp elements can be connected in a latching and adjustable manner via the toothing, with the connection being able to be realized solely by the action of mechanical force without the need for a screw connection.

A set of a connector and a retaining element is from EP 3 490 075 A1 known.

The plug connector and the retaining element are designed to latch together. The holding element has latching elements protruding from a bearing surface.

The connector has a plurality of latching openings on a latching surface, each of which has an insertion area for receiving a latching element inserted into the insertion area and an adjacent latching area that merges into the insertion area.

The latching area has a latching edge for positive latching of a latching element. The latching surface has a smaller opening than the insertion area in order to latch a latching element inserted into the insertion area into the latching region with the latching edge after a relative transverse displacement of the holding element transversely to the immersion direction.

The holding element according to EP 3 490 075 A1 sees itself as a strain relief element, which has a platform with attachment contours in the form of openings or notches, with which cable ties can be attached to the platform.

Furthermore, there are conductor connection terminals with insertion openings in order to connect electrical cables or conductors that have been inserted into the conductor insertion openings.

According to the EP 3 490 075 A1 the retaining element there is mounted on the underside of the connector. In this regard, the underside forms a latching surface of the connector with latching openings into which latching elements of the retaining element dip in order to lock the retaining element on the connector.

In the synopsis of the teachings of EP 3 490 075 A1 the strain relief is moved in a first position on the underside into the latching openings, that is to say inserted and then shifted laterally by a small amount, so that the necessary clamping occurs.

Consequently, the insertion of the strain relief according to the previously known prior art requires a sequence of movements in two directions, which is a not inconsiderable disadvantage under difficult assembly and working conditions.

From the above, it is therefore the object of the invention to specify a further developed lamp, in particular a switch cabinet lamp, which has an effective way of safely inserting the stripped ends of an electrical connection cable into a terminal even when difficult installation conditions are present. In this way, unproblematic contacting and the corresponding connection of the lamp should be ensured under all circumstances.

In addition, the lamp should be designed on its connection side in such a way that a cable support and strain relief is created, with the additional possibility of retrofitting with such a strain relief being provided.

The object of the invention is achieved by the combination of features of claims 1, 8 and/or 9, the dependent claims representing at least expedient refinements and developments.

Accordingly, the starting point is a light, in particular a switch cabinet light, which has a multiplicity of light-emitting diodes as light sources.

The lamp consists of an elongated lamp housing, which is realized in particular in two parts.

In this respect, the lamp housing comprises a housing base body and a translucent cover.

Housing body and translucent cover can have a snap-in connection to fix the cover on the body. Alternatively or additionally, the cover can be bonded to the base body, that is to say by gluing.

The cover can be translucent or translucent, but also incorporate lens-like elements in order to enable specific beam angles depending on the intended use of the light, but also to ensure freedom from glare.

From an electrical point of view, the lamp can be designed as a so-called multi-voltage lamp and additionally include switching means. These switching means can be designed as a motion sensor, for example, or can include a door contact that can also be retrofitted.

The basic housing body is designed like a trough and an electrical connection means is provided in the area of at least one end face or narrow side of the lamp housing. This connection means can be implemented in the form of a plug, a socket or else in the form of an electrical connection terminal.

In one embodiment, a terminal for connecting an electrical cable can be formed on one end face of the lamp housing and an electrical connector in the form of a plug or socket can be formed on an opposite end face. In this way, the possibility of arranging several lights in a row is created by connecting a further light to the associated, complementary plug or socket.

According to the teaching of the invention, at least one front end of the lamp housing is formed by a connection piece, which is held in a form-fitting manner both by the cover of the lamp and by the housing base body.

Breakthroughs for guiding one end of an electrical connecting cable to a connecting terminal located inside the lamp housing are formed in the connecting piece.

A connection cable, usually multi-core, is stripped of its outer sheath at one end over a specified length. The individual cores or exposed sections that are now present are in turn stripped of insulation over an end area. If necessary, the stripped conductor is soldered, twisted or provided with a cable end sleeve.

Using the connection piece with its openings, for example in the form of a tube-like passage area, the wire ends can be introduced in a targeted and directed manner. A clamp located behind the connection piece, which is aligned with the openings in the connection piece, then correctly and precisely picks up the stripped areas. These are fixed there either by means of a screw connection or locked and contacted via a spring-loaded clamping plate.

The openings mentioned in the end piece are preferably formed next to one another in a first plane.

In a second plane running parallel to the first plane, a hollow profile rail is formed for the lateral insertion of a connection cable support together with strain relief.

Accordingly, the electrical connection of the corresponding connection cable can first be carried out as described above. Afterwards, the connection cable support and strain relief can be pressed laterally into the hollow profile rail. The connection cable then rests on the strain relief and supports itself against it.

The connecting cable support and strain relief has a groove profile end, which is designed to complement the hollow profile rail, with a support body with a cable support trough extending at right angles to the insertion direction, adjoining the groove profile end. The connection cable already mentioned then rests in the cable support trough.

The support body has recesses or recesses distributed over its longitudinal extent in order to accommodate a connecting cable attachment means, in particular cable ties known per se.

When the connection cable support and strain relief are fully pushed in, they snap into place with the end piece.

According to the invention, a lamp housing can be retrofitted with the end piece.

A further idea according to the invention consists in the consideration of creating a possibility of fixing the lamp, which is designed and provided in particular as a switch cabinet lamp, in a switch cabinet. There are usually several so-called DIN rails in control cabinets. These DIN rails are designed according to a relevant industry standard and are able to accommodate, for example, fuse switches, switch disconnectors, contactors or the like.

In order to create the possibility of attaching a switch cabinet light to such standard top-hat rails, a fastener in the form of a clip was created.

In this regard, a plurality of spaced and opposite locking slots is provided on the underside of the trough-like housing body. Complementary to these locking slots, locking lugs are designed on the front side of the fastening clip.

On its rear side facing away from the locking lugs, the fastening clip has locking pins provided with sliding bevels, the locking spacing of which is matched to the dimensions of a top-hat rail according to DIN.

If the lamp is to be fastened to a top-hat rail, two fastening clips are preferably fastened to the housing base body at a lateral distance using the locking slots.

A lamp provided with such snap-in clips is then plugged onto a corresponding free spot on a top-hat rail from above. The sliding bevels allow easy sliding.

The locking lugs then engage behind the DIN rail profile. This process requires a certain elasticity of the latching pin, which means that opposite latching pins are initially spread apart, which then return to their original position. As a result, a firm form-fitting clamping is accomplished.

In a manner according to the invention, the lamp described above can have the end piece designed according to the invention with connection cable support and strain relief and the fastening clips explained for top-hat rail mounting.

Even a lamp without an end piece, but only equipped with connection means in the form of a plug or a socket, can be upgraded for attachment to a top-hat rail, ie for top-hat rail mounting, with the aid of the fastening clips presented.

The invention will be explained in more detail below using an exemplary embodiment and with the aid of figures.

• 1 einen Schnitt durch einen Teilabschnitt der erfindungsgemäßen Leuchte mit erkennbarem Anschlussstück, Anschlusskabelauflage und Zugentlastung sowie einem eingeführten Anschlusskabelende;
• 2 eine perspektivische Darstellung eines Teilbereiches der erfindungsgemäßen Leuchte mit Anschlussstück sowie Anschlusskabelauflage und Zugentlastung;
• 3 eine Darstellung ähnlich derjenigen nach 2, jedoch mit Blick von der Unterseite auf die Leuchte, welche mit Hilfe eines Befestigungsclips durch Verrasten an einer Hutschiene befestigt ist;
• 4 eine perspektivische Ansicht auf ein erfindungsgemäßes Abschlussstück;
• 5 eine Schnittdarstellung des Abschlussstückes mit erkennbarer Hohlprofilschiene;
• 6 eine perspektivische Darstellung der Anschlusskabelauflage und Zugentlastung;
• 7 einen Längsschnitt durch die Anschlusskabelauflage und Zugentlastung gemäß Darstellung nach 6;
• 8 eine Querschnittsdarstellung des Anschlusskabel- und Zugentlastungsbauteiles mit Kabelauflagemulde;
• 9 eine perspektivische Rückseitenansicht des Befestigungsclips zur Hutschienenmontage;
• 10 eine Draufsicht auf die Rückseite des Befestigungsclips;
• 11 eine Schnittdarstellung längs der Linie A-A nach 10;
• 12 eine Draufsicht auf die Vorderseite des Befestigungsclips.

Here show:

• 1 a section through a portion of the lamp according to the invention with a recognizable connector, connection cable support and strain relief and an inserted connection cable end;
• 2 a perspective view of a portion of the lamp according to the invention with connecting piece as well as connection cable support and strain relief;
• 3 a representation similar to that shown below 2 , but with a view of the lamp from below, which is fastened to a top-hat rail with the aid of a fastening clip;
• 4 a perspective view of an end piece according to the invention;
• 5 a sectional view of the end piece with recognizable hollow profile rail;
• 6 a perspective view of the connection cable support and strain relief;
• 7 a longitudinal section through the connection cable support and strain relief as shown 6 ;
• 8th a cross-sectional view of the connection cable and strain relief component with cable support trough;
• 9 a perspective rear view of the mounting clip for DIN rail mounting;
• 10 a plan view of the back of the mounting clip;
• 11 a sectional view along the line AA 10 ;
• 12 a plan view of the front of the mounting clip.

the 1 until 3 illustrate an end portion of a switch cabinet light 1 with its front end 5, which receives a terminating piece 6.

The lamp 1 consists of a trough-like housing body 2 and a translucent cover 3. Inside the lamp housing there is, among other things, a connection terminal 4.

This is located behind the end piece 6 forming the front end and has suitable means for making electrical contact with a connecting cable or corresponding connecting cable cores 10; 11; 12 on.

The cordset 10 is surrounded by an outer sheath that accommodates a plurality of individual strands or cables. The cable end 11 is freed from the outer sheath. There is also a stripped area 12 at the end of the cable 11 . This stripped area is inserted into terminal 4.

breakthroughs (see 2 ) 7 in the connection piece 6 form a guide 9, so that the stripped end 12 safely enters the relevant area of the connection terminal 4 without any problems.

The connection terminal 4 can be a conventional screw terminal.

The sectional view according to 1 shows how the end piece 6 is held in a form-fitting manner in the housing body.

Corresponding grooves or recesses in the end piece 4 are formed in such a way that end regions of the cover 3 or of the housing base body 2 can engage and fix the end piece 4 in place.

It can be seen in particular from 2 also that the openings 7 in the end piece 6 are located on a first, upper level there and are formed next to one another.

A hollow profile rail 13 is provided in a second plane running parallel to the first plane.

This is also in detail in the 4 and 5 structurally comprehensible for the person skilled in the art.

It can also be seen here that the hollow profile rail 13 has reinforcements 14 in order to hold the connection cable support and strain relief 15 securely.

The connection cable support and strain relief 15 has a groove profile end 16 (see also 6 until 8th ).

This groove profile end 16 is designed to complement the hollow profile rail 13 in such a way that the strain relief 15 can be pushed in laterally with corresponding locking in the hollow profile rail 13 and thus in the end piece 6 .

The strain relief 15 has a support body 17 for the connecting cable 10 (see 1 ).

Recesses or recesses 20 in the region of the support body 17 of the strain relief 15 are used to lock a fastening means for the laid cable, in particular a cable tie 21 or several cable ties 21 (see also 1 ).

So at this point it shows the connection cable support and strain relief 15 has a groove profile end 16 which is designed to be complementary to the hollow profile rail 13 , the support body 17 with the cable support trough 19 then extending at right angles to the insertion direction at the groove profile end 16 .

When the connection cable support and strain relief 15 are fully pushed in, they snap into place with the end piece 6 and form a unit.

Forces acting on the connecting cable 10 can be safely intercepted and are not transferred to the electrically relevant connection of the stripped area 12 of the cable 10 within the connecting terminal 4.

On the underside of the trough-like housing body 2 spaced and opposite latching slots are formed according to a development of the invention.

For the purpose of latching, these latching slots are complementary to latching lugs 23 of a fastening clip 22.

In this respect, the locking lugs 23 are located on the front of the fastening clip 22 (see 9 until 12 ).

The fastening clip 22 has on its rear side facing away from the latching lugs 23 a plurality of opposite latching pins 24 which, in relation to their latching distance, are matched to the dimensions of a top-hat rail 26 according to the applicable industry standard. Furthermore, the latching pins 24 on the back of the fastening clip 22 are provided with slide bevels 25 in order to ensure that the lamp can be easily and easily snapped on and thus fastened to the top-hat rail 26 (see also the overview of the representations according to the 2 and 3 ) in connection with the details of the design of the fastening clip 22 according to the 9 until 12 .

At this point it should be pointed out that all aspects, notes and also the exemplary dimensions that can be recognized by the person skilled in the art in the drawings serve to disclose the explained invention and are to be used if necessary.

reference list

1

lamp

2

housing body

3

translucent cover

4

terminal block

5

face end

6

final piece

7

breakthroughs

8th

clamping grooves

9

Leadership following the respective breakthrough

10

connection cable

11

cable end

12

stripped area of the end of the cable

13

hollow profile rail

14

Reinforcements in the hollow profile rail

15

Connection cable support and strain relief

16

Slot profile end of the strain relief

17

Support body for cables on the strain relief

18

Stop in the groove profile of the strain relief

19

cable tray

20

Recesses or recesses for cable ties

21

cable ties

22

mounting clip

23

Latches on the front of the mounting clip

24

Locking pin on the back of the mounting clip

25

slide slopes

26

DIN rail

QUOTES INCLUDED IN DESCRIPTION

This list of the documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• DE 202016002732 U1 [0002]
• DE 202019101806 U1 [0004]
• DE 202014103395 U1 [0007]
• EP 3490075 A1 [0009, 0013, 0015, 0016]

Claims (9)

Light (1), in particular a control cabinet light, with a large number of light sources based on light-emitting diodes, consisting of an elongated light housing with a housing base body (2) and a translucent cover (3), means formed on the light housing for fastening the light (1), the The basic housing body (2) is constructed like a trough and an electrical connection means in the form of a plug, a socket or a connection terminal (4) is provided in the area of at least one end face or narrow side (5), characterized in that at least one end face (5) of the Luminaire housing is formed by an end piece (6) which is held in a form-fitting manner both by the cover (3) and by the housing base body (2), with openings (7) in the end piece (6) for guiding (9) one end of an electrical connection cable ( 10) towards the connection terminal (4) located inside the light housing. Shine after claim 1 , characterized in that the openings (7) are formed in a first plane and lying side by side. Shine after claim 2 , characterized in that a hollow profile rail (13) for the lateral insertion of a connecting cable support and strain relief (15) is formed in a second plane running parallel to the first plane. Shine after claim 3 , characterized in that the connecting cable support and strain relief (15) has a groove profile end (16) which is designed to complement the hollow profile rail (13), with a support body (17) with a cable support trough (19 ) extends. Shine after claim 4 , characterized in that the support body (17) distributed over its longitudinal extent, recesses or recesses (20) to accommodate a connection cable attachment means, in particular cable ties (21). Shine on one of the claims 3 until 5 , characterized in that when the connection cable support and strain relief (15) are fully pushed in, they latch with the end piece (6). Lamp according to one of the preceding claims, characterized in that the lamp housing can be retrofitted with an end piece (6). Light (1), in particular a control cabinet light, with a large number of light sources based on light-emitting diodes, consisting of an elongated light housing with a housing base body (2) and a translucent cover (3), means formed on the light housing for fastening the light (1), the The basic housing body (2) is constructed like a trough and an electrical connection means in the form of a plug, a socket or a connection terminal (4) is provided in the area of at least one end face or narrow side (5), characterized in that on the underside of the trough-like basic housing body (2 ) a large number of spaced and opposite locking slots are provided and these are designed to complement the locking lugs (23) on the front side of a fastening clip (22), the respective fastening clip (22) having slide bevels ( 25) provided with locking pins (24), de ren locking spacing is matched to the dimensions of a DIN rail according to industry standards. Light, in particular switch cabinet light, characterized by a combination of the features according to one or more of Claims 1 until 7 and claim 8 .

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