DE8700890U1 - Electrical clamping device designed as a device connection and switching terminal - Google Patents

Abstract

1. A device designed as an appliance-connecting and switching clamp, in particular for fluorescent tubes and lamps, having a clamp casing (8) made of insulating plastics for accommodating supply terminals and the bare ends of conductor leads, there being accommodated in said clamp casing a plurality of conducting metal clamping and contact members (11) with corresponding clamping elements in the form of clamping springs (15) and clamping screws (10), and it being possible to accommodate in an additional, hollow outer casing (2) of the device a capacitor (20) and/or a discharging resistor (21), which can be connected up to a contact member (11), and there being at the supply-terminal end of the outer casing (2) one or more appliance terminals for connection to a ballast resistor or a consumer's capacitor (18), and the longitudinal axis of the outer casing (2) being displaced radially relative to the longitudinal axis of the clamp casing (8), these two casings (2, 8) furthermore being so arranged as to be displaced relative to each other in the longitudinal direction, characterized in that in the outer casing (2), which is made of an insulating material and which is open at the consumer end, at least one appliance terminal - designed as a plug-in clamping member (17) - is/are clamped in each case on the one side by means of an axially-disposed, forked plug-in connector (17c) to a plug pin (19) of the ballast resistor or capacitor (18) or to the plug-in end (16) of a stud (14) extending to a contact member (11), and on the other side by means of contrapositioned contact elements (17a, 17b) in perforations (24) in the supplyterminal end wall (3) of the outer casing (2) to corresponding consumer terminal leads.

Description

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Adele-contact Electrotechnical 27 April 1987 IG/g· Fabrik GmbH & Co. KG

BüchholzBtr. 40-46

5060 Bergisch Gladbach 2

Electrical clamping device designed as a device connection and switching terminal

The invention relates to an electrical clamping device designed as a device connection and switching terminal with a housing made of insulated plastic in which a plurality of conductive small-mouth contact bodies made of metal with associated clamping elements in the form of plug-in or screw terminals are arranged.

According to the German standard DIN 46289, terminals for electrical engineering are divided into device terminals, connection terminals and connecting terminals depending on their use in switchboards, stoves, lights and the like, and into wire terminals and flat terminals depending on their design; spring terminals are also known. The connection terminals are used for external or mains connections, whereas device terminals are terminals for devices and components and are intended to form a unit with them. The clamping device in accordance with the regulations relates in particular to a

those for lamps and light ceilings.

A flat plug is already known. One half of it has a housing cover that is only partially put over the screw connections of a three-pin terminal body. The second half of the flat plug is essentially the same, although mirror-imaged, and has three protruding plug pins for the other three-pin plug housing. The known device therefore essentially serves to connect or interrupt three electrical connection strands at a predetermined point. It does not provide any suggestion to adapt the housing for device connection terminals of a special design and to arrange the contact body or clamping elements accordingly.

Transformer terminals are also known in which several plug connections are used, whereby a device plate is used for fastening to a base plate. The metal clamping elements are angled, the terminal housing is provided with a slot for plugging onto a rail. The connection options for electrical components are limited or not available here.

I* present, in particular this device is not intended for

&PSgr;- connection to certain capacitors is provided.

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¹ Ss is also known a connection terminal for capacitors (German Utility Model No. 6 915 548) , in which

the terminal lug of the capacitor, the connecting wires of the discharge resistor and the connecting cables are clamped independently of each other. Two contact bodies made of metal are provided with clamping elements designed as clamping springs, while the terminal housing is extended vertically
and serves as a space for the capacitor and the discharge resistor. However, the capacitor must be
Fluorescent lamp mounted separately in the terminal housing
This clamping device is also unsuitable for fast
and safely to the ballast or the lamp capacitor itself;

Furthermore, the pressure frame of the contact \

\ body a special trough-shaped groove on the underside V

side of the Kletam spring.

The invention as characterized in the claims
solves the problem of having a capacitor or similar
Lights and light strips the clamping device compact
to facilitate and accelerate the pre-assembly of the clamping device and to make the metal contact bodies and their mutual arrangement more versatile for contact connections.

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The advantages achieved by the invention are essentially that the clamping device in the form of a connection, device and switching terminal is created as a compact unit that only requires a small amount of space and forms an electrical pre-assembly unit. There is no need for cumbersome assembly in several work steps. The capacitor of the fluorescent lamp or similar and the terminal body are attached and connected to one another easily, quickly and safely. At the same time, several connection circuits are available for selection for lights and light strips, namely as a series or parallel connection; this is achieved by omitting or adding »

1 switching a simple switching bridge as a contact element in \ the one and the same clamping device.

In the following, the invention is explained in more detail using drawings that only show one embodiment. They show:

Fig. 1 is a front view of the clamping device from the net side.

Fig. 2 in longitudinal section along line A-B of Fig. 4 the clamping device of Fig. 1.

Fig. 3 shows the clamping device according to Fig. 1 in plan view.

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Fig. 4 a capacitor-side frontal connection

looks at the clamping device.

Fig. 5 is a side view in longitudinal section along line C - D of Figure 1.

Fig. 6 a simplified circuit diagram of the clamping device according to Fig. 1 in series connection with the switching bridge removed and

Fig. 7 shows another circuit diagram for the clamping device as a parallel connection.

The clamping device has a housing 1, see Figure 3, with a chamber-like hollow cylindrical casing 2 that is axially open on one side and has a front wall 3 on the network side, as well as a base part 4 with a terminal housing 8. Horizontally or vertically running partition walls 5, 6, 7 serve to divide the casing 2 and to accommodate or support the individual components. The housing 1 consists of

made of insulating plastic/ also the terminal housing 8 which accommodates the connection terminals, see Figure 2. The latter serves in particular to accommodate the bare ends of the conductor wires which form the connection to the power grid. Of these, only one protective conductor wire 9 is shown in Fig. 5. The base part 4 has a corresponding

corresponding projection. One of the middle clamping screws 10 of the clamping unit with several clamping screws

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housing 8, see Figure 3, is firmly turned, i.e. pulled, against a tab 12 serving as a stop, which is inserted into the corresponding body opening, see Figure 5, and since the tab is fastened to the base plate 13 on the device side or is one piece with it, the entire housing is firmly connected to the base plate.

One end of a connecting bridge 14 is attached to a clamping element of one of the metal contact bodies 11 on the mains side; according to Fig. 2, it is designed as a metal clamping spring 15. There are two connecting bridges on the side of the housing, see Fig. 3, 4/. Their output-side ends 16 facing away from the mains can be directed inwards on the mains side and are inserted into the plug-in terminal bodies 17, which serve as contact distributors and are made of metal. The plug-in terminal bodies 17 form four outlets, i.e. contact taps 17a, on one side, see Fig. 1 and 6; on the other side, two contact taps 17b.

A preferably circular capacitor 18 of a fluorescent lamp or the like (not shown) which is guided from the side facing away from the mains engages with its support tongue 19 in the opening of two upper plug-in terminal bodies 17. The casing 2 guides and supports the capacitor, see Figures 2, 3. These components 2

ji and 18 are thus detachably connected, but in

the FCym design adapted to each other by the clamping

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device as a whole by simple sliding movement
pushed onto the capacitor and connected by plug connections. The housing 1 of the clamping device also has, see Figure 2, flange-like
Parts for accommodating a suppression capacitor 20, which is

is connected. Furthermore, the casing 2 has a I special web 2a which is designed to be resilient, |

a discharge resistor 21 and this in |

Direction of a plug-in small body O and with the I

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The associated relatively short cable connections are only shown schematically. The special design and mutual arrangement of the plug-in connectors can be seen in Fig. 2, 4.

r clamping body 17. You have once a fork- |

part 17c, Fig. 2, to connect the ends of the connecting |

bridges 14, see Figure 4, to be easily and safely picked up. |

On the other hand, see Figure 1, they have conductor wire ends ji

or pin-shaped areas adapted to the hole, following

nected contact taps 17a, 17b. The plug-in terminal frames I

bodies 17 have once a mutual arrangement over- '■'

each other, see Figure 4, that their Qabels 17c, see Figure
2, at a suitable vertical height, the axially pushed-in tongue 19 of the capacitor 18 can be easily and safely
can also clamp an upper area of the discharge resistor 21: The plug-in terminal bodies 17 with their individual areas allow a variety of contact

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and switching connections.

The front wall 3 of the casing 2 has suitable perforations 24. Connecting wires for consumers 25, Figure 6, can be introduced through these so that the connecting elements of the metallic plug-in terminal body 17 contact and clamp. These clamping elements can be regarded as individual switching poles. Now, a switching bridge 26 is also advantageously provided for short-circuiting in parallel connections, see Figures 2, 4, 6* It can be designed as an approximately bow-shaped contact element with pin-like ends, Fig. 6, and is inserted into the pole terminal pieces (at 17b) of the respective plug-in terminal bodies 17 or the contact taps 17b according to Figure 6, left side, or (optionally) pulled out. The switching bridge 26 also turns the clamping device into a switching terminal, so that a series connection, Figure 6, or a parallel connection, Figure _11, is possible, in the latter the capacitor 18, the discharge resistor 21 and the interference suppression capacitor 20 and in between the individual consumers shown in hatching are arranged.

Advantageous embodiments are provided as follows: A lid-shaped shielding plate 30 can be provided on the capacitor side and can be snapped into place on at least one of the support walls 5-7, see Figure 5. This contains open

nti3gen 30a for passing through the two plug-in tongues 19

of the capacitor 18 and the plug-in end 16 of the connecting bridge 14. The cover plate can engage with its guide holes in centering pins on the front edges of the end walls 5-7, whereby the latter walls

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from the side edges of the shielding plate 30

This increases the assembly safety compared to the bare parts within the jacket housing.

Furthermore, the outer area of the side walls of the base part 4 is provided with wedge-shaped guide components 35 extending in the longitudinal direction or parallel to the longitudinal axis of the casing 2, see Fig. 1, 4. These are pushed with the entire housing on the mounting plate 13 under strips of the sheet metal (not shown), so that the arrangement of the clamping device on the mounting plate itself is carried out quickly and safely.

The inner wall of the casing 2 is advantageously provided with at least partially circumferential webs 41, cf. Figure 5, which protrude radially inwards and engage in at least one recess 40 of the capacitor 18. This provides additional support for the capacitor and better axial stability after the lamp capacitor 18 has been pushed into the casing 2, particularly in the case of a large diameter.

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Positioning to the clamping device/ is created. Furthermore, better interference suppression of the lamp capacitor 18 is achieved by providing a special contact bracket 36, see Figure 5, which has one end 37 on the grounding screw 10, but with the other, somewhat nose-shaped end 38, engages in a circumferential groove on the capacitor surface and also acts as a grounding conductor. The contact bracket is firmly clamped in the casing or the base part, is supplied with the clamping device and does not need to be provided on the capacitor; this grounding of the capacitor is thus achieved with a plug-in process, without additional assembly steps.

In special cases, the switching bridge can be dispensed with by providing the left and right contact taps 17a, 17b on the left and right side, see Figure 1, as four interconnected contact taps each.

Claims (10)

Fabrik GmbH & Co. KG Ädels-contact Electrotechnical 28 April 1987 IG/ge Protection claims 1" Electrical clamping device designed as a device connection and switching terminal, in particular for fluorescent tubes and lamps, with a terminal housing (8) made of insulating plastic, in which a plurality of conductive clamping and contact bodies (10, 11, 15) made of metal with associated clamping elements in the form of clamping springs (15) or screw terminals (10) are accommodated, wherein a capacitor (20) connectable to a contact body dp) and/or a discharge resistor (21) can be accommodated in an additional housing compartment (at 8). as well as on the front side facing away from the Metz: one or more device terminals (17) for connection to a ballast or a capacitor (18) of a consumer are present, characterized in that that the housing compartment is designed as a hollow casing (2) offset radially and axially to the terminal housing, in which at least one device terminal (17) is connected by an axially extending fork-shaped plug connection (17c) % #«»111)111 I***** 4« I» If I It 4* * V tiltffilllt** ' ««1» ff 11 1*4»·* on a plug-in tongue (19) of the ballast or capacitor (18) or a plug-in end (16) of a connecting bridge (14) to the contact body (11) on the one hand and through mains-side perforations (24) in an end wall (3) of the casing (2) facing contact taps (17a, 17b) on the other hand to consumer connection conductors. 2. Clamping device according to claim 1, characterized in that the at least partially hollow-cylindrical dumbbell housing (2) has one or more vertical and/or horizontal support walls (5-7) for the plug-in clamping bodies (17) and/or for a capacitor-side cover-shaped shielding plate (30) that can be snapped into place on at least one of these support walls. 3. Clamping device according to claim 1 or 2, characterized in that the casing (2) has a springy web (2a) through which a discharge resistor (21) accommodated in the casing (2) is held and/or pressed with a connection contact against a contact surface of the plug-in terminal body (17). 4. Clamping device according to one of claims 1-3/ characterized in that the base part (4) of the &igr;« HH Il Il Il 11 I * &bull; t IfIIlIlIfII it If It 11If III « Il I »I If I IfII · III IfIIII III &bull; « t Il Il If Il Il ·»
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&bull; · « . · « &bull; ) * ■ i I Tim I 1 Housing has wedge-shaped guide components (35) extending in the longitudinal direction on the side walls. 5, clamping device according to one of claims 1 - 4, characterized in that on the inner wall of the casing (2) there are at least partially circumferential/radially inwardly projecting webs (41) which engage in at least one recess (40) of the capacitor (18) and/or one or more guide or sliding bearings between the mutually facing surfaces of the capacitor (18) and the casing (2). 6. Clamping device according to claim 1, characterized in that a switching bridge (26) short-circuiting the adjacent contact taps (17b) of the plug-in terminal body (17) can be clamped or plugged into at least one side of the plug-in terminal body (17/17a, 17b). 7 * Clamping device according to claim 1 or 6, characterized in that a protective conductor (9) can be clamped by a first screw terminal (10) arranged in the middle of the terminal housing (8), while the further conductor connection openings are arranged in the side area of the terminal housing and here the ends of the connecting bridge (14) via spring terminals (15) with the corresponding bare ends of plug-in conductors. 8. Clamping device according to one of the preceding claims, characterized in that an interference suppression capacitor (20) is arranged below the casing (2) and the plug-in terminal body (17) is arranged in the base part (4). 9. Clamping device according to one of the preceding claims, characterized in that near the mains-side end wall (3) in the casing (2) there are two connection outlets or contact handles (17b) on one side and four contact taps (17a) on the other side. 10. Clamping device according to one of claims 1-9, characterized in that a contact bracket (36) made of Metal with the mains-side end (37) clamped to an earthing screw (10), but the other end shaped as a nose (38) is connected as an earthing conductor to a metal surface or a surface recess (40) of the capacitor (18).