DE102008064124A1 - Insulating element and conductive contact element for an electrical installation device and electrical installation device - Google Patents

Abstract

The present invention relates to an insulating member for covering a conductive contact element of an electrical installation device, wherein the conductive contact element is disposed behind an opening in the housing of the electrical installation device, wherein the insulating member (1) a latching or snap device (2) for engaging behind at least a portion of the conductive contact element (10) and for securing the insulating element (1) to the conductive contact element (10). Furthermore, the invention relates to a conductive contact element of a terminal of an electrical installation device, wherein the conductive contact element is disposed behind an opening in the housing of the electrical installation device, wherein the conductive contact element (10) at least one recess (11) for passing a latching or snap device ( 2) of such an insulating element (1), as well as an electrical installation device with such a conductive contact element (10).

Description

The The present invention relates to an insulating member for covering a conductive contact element of an electrical installation device, wherein the conductive contact element behind an opening in the housing of the electrical installation device is arranged. Furthermore, the invention relates to a conductive contact element an electrical installation device, wherein the conductive contact element behind an opening in the case of the electrical installation device is arranged, as well as a electrical installation device, having at least one opening and one behind the at least one opening in the housing of the electrical installation device arranged conductive contact element.

At electrical installation equipment are cables by terminals, usually by screw terminals, attached. For this purpose, the insulating material housing of the installation device openings behind which the terminals are located. To also conductor larger cross section It's easy to pinch do not avoid dimensioning the clamp and thus the opening in installation device so large that by finger inside metal parts can be touched and thereby an electric shock can be suffered. This danger is especially given when leaders with a far smaller Cross section as the maximum possible Cross section are clamped. Because then is a big part the terminal cross section through a conductive element, d. H. a metallic one Part, such as a clamping screw or a clamping pressure piece, closed. The clamping screw or the clamping pressure piece is now immediately behind the housing opening and Can be touched by the installer or user, if this z. B. other devices assembled or disassembled in the distribution or connecting or disconnecting the conductor.

Around the installation device To make gripping safe, is the externally touchable conductive contact element the clamp, usually the clamping pressure piece, with an additional Insulating provided, which prevents the installer or user can touch the conductive contact element. Known insulating elements are doing with pins in openings the conductive contact element, for example, the clamping pressure piece, inserted. The disadvantage is that the insulating element that forms the Umgreifschutz, in the case, d. H. on the inside of the case the installation device, guided must be because the connector of the insulating in the clamping pressure piece very filigree executed is and is not capable of the occurring loads Handling and clamping of conductors. Subsequent installation a known insulating is not possible. The insulating element must along with the clamp behind the opening of the housing, inside of the housing, be fixed. installation equipment with such an insulating element on the conductive contact element Although they are grip-proof, the installation devices themselves are completely inflexible. An electrical installation device with such an insulating element later equip it in order to make it safe.

In the 1 is a so-called standard variant of an electrical installation device 20 shown where the clamp 18 and thus the conductive contact element 10 are formed without insulating. The metallic contact element 10 , ie the clamping pressure piece, can be easily touched from the outside here, whereby the user or installer easily in contact with the electrically conductive contact element 10 can come.

The 2 shows an installation device 20 in which on the conductive contact element 10 the clamp 18 an insulating element 1 is arranged. With this comfort variant of the installation device 20 are the conductive contact elements 10 the terminals 18 through the insulating element 1 shielded. The insulating element 1 has two short pins which fit into corresponding holes in the conductive contact element 10 , in particular in the clamping pressure piece, are inserted. In addition, the insulating element 1 inside the installation device 20 left and right on the case 21 led, since the pins in the conductive contact element 10 only plugged in and not secured against falling out. An omission of the insulating element 1 for the formation of the standard variant of the installation device 20 would result in the case 21 to the conductive contact element 10 or to the clamping pressure piece would have to be adjusted because a margin between the housing 21 and the conductive contact element 10 due to the absence of the insulating element 1 arises. Accordingly, standard and comfort variant of the installation device 20 not in the same housing 21 realizable.

The openings in the conductive contact element or in the clamping pressure piece, which serve the pins of the insulating element 1 are included in the standard series of installation devices 20 that is not an insulating element 1 have, open. This carries the risk of miscarriage. That is, there is a risk that the user is trying a conductor to the installation device 20 instead of the open terminal, insert the conductor into the openings for the pins, ie into the wrong hole, and screw in the empty terminal, especially since the user has to open the terminal opening of an installation unit mounted in a distribution cabinet 20 does not see, so blind plugged.

Also at the in 3 illustrated installation device 20 becomes the conductive contact element 10 without insulating element 1 used. The opening for passage of an electrical conductor to the terminal, normally through the insulating element 1 is closed, is free here. As a result, there is a risk that the user, instead of inserting the conductor into the open terminal intended for this purpose, inserts it into the pin opening of the clamping pressure piece and screwed the terminal without a conductor. In built-in position, the opening of the clamp is usually not visible and by the center of the opening or the bore falls a misfed conductor not too much.

task Therefore, the invention is an insulating member for covering a conductive contact element of a terminal of an electrical installation device and to provide a conductive contact element of a terminal of an electrical installation device, by an electrical installation device simply umgreifsicher trained especially retrofitted, can be. In particular, an electrical installation device is created be equipped so that it can be re-grasped by simple means if necessary can be.

These Tasks are performed according to the invention an insulating member having the features according to independent claim 1, by a conductive contact element with the features according to the independent claim 11 and by an electrical installation device having the features according to independent claims 18 solved. Further features and details of the invention will become apparent from the Dependent claims, the description as well as the drawings. There are features and Details related to the insulating element according to the invention are described, of course also in connection with the conductive contact element according to the invention and the electrical according to the invention Installation device, and vice versa, so that with respect to the disclosure of the individual aspects of the invention always referenced mutually becomes.

According to the first Aspect of the invention, the object is achieved by an insulating for Covering a conductive contact element of a terminal of an electrical Installation equipment, wherein the conductive contact element behind an opening in the housing of the arranged electrical installation device is, wherein the insulating a latching or snap device for engaging behind at least a portion of the conductive contact element and for securing the insulating member to the conductive contact member has dissolved.

core the invention is that the insulating element directly to the conductive Contact element, in particular on the clamping pressure piece, fixed non-positively becomes. The insulating is not through the case of the installation equipment held. The latching or snap device engages behind at least a portion of the conductive contact element and thereby secured the insulating element on the conductive contact element. Such a thing trained insulating is very simple and can simply attached to the conductive contact element as needed become. In this case, the attachment of the insulating element to the conductive Contact element also after mounting the terminal or the conductive Contact element of the terminal in the housing interior of the installation device possible.

The Connection of insulating element and conductive contact element of the terminal by means of a latching or snap device allows the insulating element safely on the installation device to assemble without it on housing walls in Interior of the installation device to lead to have to. This allows the insulating after installation of the terminals in the housing, ie very late in the production process, to be mounted. That offers the advantage that it is possible now is, the variant variety of the installation equipment, which by promotional Additional features for higher priced Installation equipment, such as, inter alia, serving as Umgreifschutz insulating element, only at the end of the production process to produce, and so the main part the production slim, so to keep low variation.

In addition, will avoided that the device housing at Installation device variants with insulating a wide guide for the Clamping pressure piece and the insulating member needed while it with installation device variants without insulating only a narrow guide for the clamping pressure piece alone needed. This saves housing variants and Cost by additional Housing tools.

The Insulating element advantageously has approximately the shape of the opening, through which the insulating member is passed, on, so that the insulating member almost completely covers the conductive contact element of the terminal. Therefore, it is further preferable that the shape of the insulating member is smaller is as the opening in the case of the electrical installation device, so that the insulating element through the opening can be fastened to the conductive contact element.

Particularly preferred is an insulating element, in which the latching or snap device has at least one spring-elastic snap hook. That is, the insulating member may be fixed to the conductive contact member of the clamp by means of a compact snap-on hook. The snap hook is resilient, so that it is bent resiliently when passing through the opening in the conductive contact element, in particular in the clamping pressure piece and snaps back into its original shape after passing through the opening and thereby engages behind the conductive contact element. In a preferred embodiment of the insulating element, this has two snap hooks. Preferably, however, the insulating element can also have more than two snap hooks, for example four snap hooks. These are preferably arranged distributed on the insulating element, so that a uniform attachment of the insulating element to the conductive contact element is made possible.

In another preferred embodiment the insulating element is provided that the latching or snap device has a bayonet closure. The bayonet lock of the insulating element is formed by a protruding from the insulating hook, the one through the opening is introduced in the conductive contact element of the terminal and subsequently by a displacement and / or rotation of the insulating the conductive contact element force and / or positive engages behind. The connection the insulating element and the conductive contact element via a so-called plug-in rotary movement or plug-slide movement of the insulating. The one through the opening the conductive contact element inserted part of the protruding Hook of the bayonet catch engages behind the shift and / or the rotation of the conductive contact element. The outstanding one Hook has, for example, an L-shaped or a T-shaped form, wherein the angled portion of the L-shaped or the T-shaped form the protruding hook after the displacement and / or rotation the insulating element and thus the protruding hook the conductive Contact element engages behind and thereby the insulating safely fixed to the conductive contact element.

The is called, the insulating element is by means of a compact bayonet closure attached to the conductive contact element, for example the clamping pressure piece. The bayonet contour, for example, the hook, the bayonet closure takes over both the positioning of the insulating element to the conductive Contact element, as well as the stable tight fit, the falling off prevents the insulating element from the conductive contact element. The Insulating required therefore no leadership on its left and right side in the housing, which allows the insulating narrower to design. As a result, a mounting of the insulating element to the conductive contact element after installation of the terminals in the housing of the Installation device possible because the insulating element from the outside through the opening in the case of the installation device can be mounted on the conductive contact element. The insulating element has on its side facing the conductive contact element at least one bayonet contour. The bayonet contour of the bayonet catch is not designed resiliently. The bayonet contour becomes at the conductive contact element, in particular the clamping pressure piece, by at least put a corresponding counterculture and by turning or pushing against a release secured.

As already executed before, an insulating element is preferred in which the bayonet closure as a sliding bayonet lock or as a rotating bayonet lock is trained. The shape of the sliding bayonet catch differs from that of the shape of the Drehbajonettverschluss only insignificantly. Both closure variants have at least one protruding from the insulating bayonet contour, in particular a hook, which, by the corresponding mating contour, d. H. a recess or opening, is passed in the conductive contact element. In the sliding bayonet lock the entire insulating element is displaced so that an angled Area of the bayonet contour or the hook, the conductive contact element engages behind. In the rotary bayonet closure, the entire insulating is twisted so that the angled portion of the bayonet contour or of the hook engages behind the conductive contact element. The rest or Snap device can several Schiebbajonettkonturen, d. H. several Hook, comprising, by correspondingly more recesses or openings can be passed in the conductive contact element.

Of Furthermore, an insulating element is preferred in which the insulating element at least one fastener for engaging an opening of the conductive Contact element has. The fastener is used for additional Fixation of the insulating element to the conductive contact element. The is called after sliding or untightening of the insulating on the conductive contact element is the insulating element through the at least one Fastener additionally against a displacement or rotation of the insulating element secured. That at least one fastener can, for example be a protruding from the insulating pin or retaining pin. The fastener is in corresponding counter contours on the conductive contact element, in particular the clamping pressure piece introduced. The additional Fastening element is particularly advantageous if the Latching or snap device of the insulating element as a bayonet lock is trained.

The insulating element advantageously has a plate-shaped main body. This basic body can have various shapes, for example an oval, circular or rectangular shape. Preferably, the shape of the plate-shaped is gene basic body of the shape of the opening in the housing of the installation device adapted, through which the insulating element is passed for attachment to the conductive contact element. The latching or snap device is arranged on one or both side (s) of the plate-shaped base body.

Especially preferred is an insulating element, in which the latching or snap-in device, in particular the at least two spring-elastic snap hooks, arranged on the edge of the plate-shaped base body are. The openings or recesses in the conductive contact element for receiving serve the latching or snap device, are advantageously preferably far outside arranged the conductive contact element. That is the openings or recesses are preferably very far off-center, So provided on the edge of the conductive contact element. Therefore an insulating element is preferred in which the snap hook also off-center, especially at the edge of the body of the insulating element are arranged. An accidentally in the conductive contact element inserted conductor is then not centered on the conductive contact element, but off-center what the user is noticed. By the eccentricity the openings or recesses become the openings or recesses as well from the behind the conductive contact element, in particular the clamping pressure piece, lying clamping frame completely or partially covered, which additionally prevents the miscarriage. The openings or recesses in the conductive contact element are also very narrow, allowing the insertion of a leader is made difficult.

A provided on the second side of the plate-shaped base body Gripping device allows the gripping of the insulating element, so that this of the conductive Contact element can be removed again. The gripping device can be from one or more holes in the main body of the Iso lierelementes be formed. Furthermore, it is conceivable that the gripping device through one out of the main body protruding element is formed. Here is the gripping device on the side facing away from the latching or snap device of the main body of the Insulating element arranged.

Especially Preferably, the plate-shaped body of the insulating element openings on, at the foot the latching or snap device are provided. These openings allow in the insulating element the relatively short trained snap hook more elastic travel. When deflecting a snap hook, there are areas that are bent, and Areas that are being twisted. This allows the Aufschnappkraft the snap hook through the length the openings constructively adjust.

According to the second Aspect of the invention is the object by a conductive contact element of a Clamp of an electrical installation device, wherein the conductive contact element behind an opening in the case of the electrical installation device is arranged, and wherein the conductive contact element at least one recess for the passage of a Latching or snap device of an insulating according to the first Aspect of the invention has solved.

Of the Core of the conductive contact element of the terminal is that the at least one recess in the conductive contact element for the passage of the special locking or snap device of the insulating formed. D. h., The at least one recess or opening of the conductive contact element is for the passage a snap hook or a bayonet closure formed. The recess for passage a bayonet closure has at least the cross-sectional shape of the widest point of the bayonet contour, in particular of the hook on. In this case, the recess is arranged in the conductive contact element, the insulating element is inclined or twisted to its end position be guided to the conductive contact element to the conductive contact element must, so that the bayonet lock, which is preferably designed as a hook is passed through the recess in the conductive contact element can. By the subsequent Rotation of the insulating element engages behind the angled front Area of the bayonet closure or the hook, the conductive contact element. The bayonet lock is advantageous, unlike the snap hooks the snap device, centered on the contact element facing Side of the main body arranged the insulating element.

Particularly preferred is an embodiment of the conductive contact element, which is characterized in that the at least one recess are provided on the edge or on the contour of the conductive contact element. Such an embodiment of the conductive contact element has the advantage that an inadvertently incorrectly inserted conductor is then not centered to the conductive contact element, but off-center, which is noticed by the installer. Due to the eccentricity, the recesses are also covered in whole or in part by the clamping frame located behind the conductive contact element, which additionally prevents misfiring. The insulating element is attached only to the conductive contact element, in particular the clamping pressure piece, and does not require a guide on its left and right side in the housing. This makes it possible to make the insulating narrower. As a result, a mounting of the insulating member to the conductive contact element after installation of the terminals in the housing of the Installation device possible, since the insulating element can be easily mounted from the outside to the conductive contact element or the clamping pressure piece.

Especially Also preferred is a conductive contact element that at the opening in the housing the electrical installation device side facing away from at least a distinctive Area for receiving a portion of the locking or snap device having. embossed off means that the thickness of the conductive contact element to certain Areas is reduced. The clamping press piece is designed so that the surfaces that from the angled areas of the snap hook or the front Part of the bayonet catch are behind, be embossed. That is, the clamp pressure piece is on these surfaces so thin that these areas and the angled portions of the snap hook or the front Part of the bayonet contour together are not thicker than the sheet thickness the conductive contact element, in particular the clamping pressure piece. The Part of the latching or snap device that on the embossed area is taken, is the front angled portion of the out of the Side of the main body the insulating element protruding hook or spring elastic Snap hook. In the case of the bayonet lock, the protruding Hook the so-called bayonet wing The conductive contact element, in particular the clamping pressure piece, is doing so that the area (s), the from the bayonet wing (s) is engaged behind, is stamped / are, that is, the clamping pressure piece is on this area (s) so thin, that this area (s) and the bayonet wing (s) together are not thicker than the sheet thickness of the conductive contact element even.

Further is a variant of the conductive contact element, wherein the at least a distinctive Area inclined to the opening in the case of the electrical installation device facing side runs. This comes it during the pushing or the rotation of the so-called bayonet wing a friction of the front angled portion of the bayonet wing the inclined imprinted Area of the conductive contact element, so that the bayonet wing non-positively can be fixed to the conductive contact element.

The conductive contact element further preferably has at least one opening to Comprises receiving a fastener of the insulating. This opening may be formed as a simple bore into which the fastener, in particular in the form of a pin, holding pin or holding tooth is trained, can snap. The admission in the leading Contact element ensured in interaction with the fastener that the deferred or untwisted insulating can not solve by itself again. The fastener thus represents an additional backup.

The conductive contact element preferably provides a clamping pressure piece a Clamp.

According to the third Aspect of the invention is the object by an electrical installation device, comprising at least one opening and one behind the at least one opening in the housing of the electrical installation device arranged terminal with a conductive contact element, solved, wherein the conductive contact element according to the second Aspect of the invention is formed. An electrical installation device, the one having such conductive contact element, can very easily by the arrangement of an insulating element, according to the first aspect of the invention is formed, made umgreifsicher at the conductive contact element become. The insulating element can easily through an opening in the housing of the installation device to the one behind the opening arranged conductive contact element are guided to strip this. D. h., Such an electrical installation device can at Need very easy by plugging in the special insulating element umgreifsicher be formed.

The Invention will now be described by way of embodiments with reference explained in more detail in the accompanying drawings. Show it:

1 a known conductive contact element of a terminal, which is arranged behind an opening in the housing of an installation device;

2 a disposed on a conductive contact element insulating element according to the prior art;

3 a known conductive contact element of a terminal having an opening for receiving a pin of an insulating element;

4 an installation device with an insulating element, which is arranged on a conductive contact element;

5 a terminal having a conductive contact element and an insulating element secured to the conductive contact element by a sliding bayonet lock;

6 an insulating member with a sliding bayonet lock;

7 a conductive contact element with off savings for receiving an insulating element with sliding bayonet locks;

8th another view of the conductive contact element according to 7 ;

9 a clamp having an insulating member disposed on the conductive contact member of the clamp via a rotary bayonet lock;

10 an insulating member having a rotary bayonet lock during the fastening operation to a conductive contact element of a terminal;

11 an insulating member having a rotary bayonet lock;

12 a conductive contact element having a recess for receiving a Drehbayonettverschlusses an insulating element;

13 a fixed to a conductive contact element insulating element with two sliding bayonet locks in a sectional view;

14 Installation devices with a terminal and a conductive contact element and partially mounted insulating elements;

15 a terminal having an insulating member attached to the conductive contact member of the terminal via snap hooks;

16 a terminal with a conductive contact element and provided in the contour of the conductive contact element recesses for receiving snap hooks of an insulating element;

17 an insulating element with four snap hooks;

18 another view of the insulating according to 17 ;

19 a conductive contact element of a terminal with provided in the contour of the conductive contact element recesses for receiving snap hooks of an insulating element;

20 a secured by snap hooks on a conductive contact element of a terminal insulating in a sectional view;

21 an insulating element with four snap hooks;

22 a conductive contact element of a terminal with provided in the contour of the conductive contact element recesses for receiving four snap hooks of an insulating element;

23 a fixed to a conductive contact element of a terminal via four snap-in insulating;

24 an insulating element with two snap hooks;

25 a conductive contact element of a terminal with provided in the contour of the conductive contact element recesses for receiving two snap hooks of an insulating element;

26 a fixed to a conductive contact element of a terminal via two snap-in insulating element;

27 an insulating element with four snap hooks;

28 a conductive contact element of a terminal with provided in the contour of the conductive contact element recesses for receiving four snap hooks of an insulating element;

29 a fixed to a conductive contact element of a terminal via four snap-in insulating;

30 a fixed to a conductive contact element of a terminal via four snap hook insulating an insulating element with four snap hooks;

31 a conductive contact element of a terminal with provided in the contour of the conductive contact element recesses for receiving two snap hooks and two fastening elements of an insulating element;

32 an insulating element with two snap hooks and two fasteners.

In the 1 to 3 are known from the prior art electrical installation equipment 20 shown with known terminals, as stated in the introduction.

4 shows an insulating element 1 , which by means of a sliding bayonet closure 4a a locking device 2 on the conductive contact element 10 , ie at the clamping pressure piece, the clamp 18 of the electrical installation device 20 is attached. The insulating element 1 is narrower than the terminal opening 22 of the housing 21 of the installation device 20 , Therefore, the insulating element 1 subsequently with the installation device closed 20 through the opening 22 through the conductive contact element 10 the clamp 18 to be assembled. The insulating element 1 has production-related openings or holes 7 on, through which the metal conductive contact element 10 you can see. However, these are not large enough to the conductive contact element 10 to touch it with your finger behind. The openings or holes 7 can serve as a gripping device when the insulating element 1 from the conductive contact element 10 should be removed.

In the 5 is a pinch 18 with a conductive contact element 10 and one on the conductive contact element 10 through a sliding bayonet lock 4a a locking device 2 attached insulating element 1 shown. the clamp 18 points next to the conductive contact element 10 a clamping frame 16 and a clamping screw 17 on. The clamping screw 17 serves to fix an inserted conductor. The two sliding bayonet locks 4a are designed as sliding bayonet wing, the angled wing tips the embossed areas 13 of the conductive contact element 10 engage behind.

The latching or snap device 2 of the insulating element 1 can be designed in various ways. 6 shows a variant of an insulating element 1 with a sliding bayonet catch 4a , The sliding bayonet lock 4a has two sliding bayonet wings, which after passing through corresponding recesses 11 in the conductive contact element 10 behind the conductive contact element 10 , in particular behind embossed areas 13 of the conductive contact element 10 to be pushed. That is, the insulating member 1 is with the sliding bayonet wings 4a in the trained as a clamping pressure piece conductive contact element 10 plugged. Moving upwards will make the bayonet catch 4 closed. The sliding bayonet wings grip 4a behind the impression 13 in the pressure piece 10 , The trained as holding pins fasteners 5 snap when closing the bayonet catch 4 in designated openings 15 , in particular holes, in the conductive contact element 10 and thereby prevent the bayonet catch 4 opens by itself.

7 and 8th show a conductive contact element 10 with recesses 11 for receiving an insulating element 1 with sliding bayonet locks 4 . 4a , In this embodiment of the conductive contact element 10 this has two recesses 11 through which the sliding bayonet wings of the sliding bayonet catch 4a be first inserted through before the insulating 1 is moved so that the sliding bayonet wing 4a the embossed area on the second side 14 the conductive contact element 10 engage behind. Through the embossed areas 13 is the combination of the deferred part of the sliding bayonet wing 4a and the embossed area 13 not thicker in thickness than the thickness of the widest point of the conductive contact element 10 , As a result, no additional space for receiving the sliding bayonet wing 4a needed. The recesses 11 of the conductive contact element 10 are to accommodate the as sliding bayonet locks 4 . 4a trained locking device 2 prepared. The second page 14 of the conductive contact element 10 is the opening 22 in the case 21 of the electrical installation device 20 away. To the first page 12 of the conductive contact element 10 The insulating element settles 1 after passing through the opening 22 at.

In the 9 and 10 is a pinch 18 with one on the conductive contact element 10 the clamp 18 via a rotating bayonet lock 4b arranged insulating element 1 shown. That is, the insulating member 1 has in this embodiment a rotating bayonet lock 4b on. The insulating element 1 will, as in 10 shown, twisted and fixed by turning in the upright position, see 9 , The conductive contact element 10 has a corresponding recess 11 through which the rotary bayonet lock 4b in the position, as in the 10 shown, can be pushed through. After the rotation of the insulating element 1 become the rotary bayonet locks 4b shifted so that it is the conductive contact element 10 engage behind.

In the 11 is an insulating element 1 shown, which as a bayonet lock 4 a rotary bayonet lock 4b having. The rotary bayonet lock 4b has so-called rotary bayonet wings, which after a corresponding rotation of the insulating 1 the conductive contact element 10 engage behind. In this embodiment of the insulating element 1 are the rotary bayonet wings 4b arranged on a circle opposite. They are in the recess 11 of the conductive contact element 10 trained clamping pressure piece stuck and hold after twisting the insulating 1 on the designated areas of the conductive contact element 10 , Trained as a holding tooth fastener snaps after mounting the insulating 1 on the clamp pressure piece 10 in a corresponding opening 15 in the clamping pressure piece 10 a, prevents turning back of the insulating 1 and thus secures the insulating element 1 against disassembly. The as a rotary bayonet lock 4b trained locking device 2 is on one side 6a of the plate-shaped body 6 trained insulating element 1 arranged. This so-called first side of the insulating element 1 is during assembly of the insulating element 1 to the conductive contact element 10 the clamp 18 this turned.

In the 12 is a conductive contact ment 10 with a recess 11 for receiving a rotary bayonet lock 4b an insulating element 1 shown. The recess 11 in the conductive contact element 10 is arranged such that the insulating 1 initially in a position facing away from the vertical position to the conductive contact element 10 must be brought so that the rotary bayonet lock 4b with its two rotating bayonet wings through the recess 11 can be inserted through. Only by the rotation of the insulating element 1 The rotary bayonet wings engage behind the corresponding areas of the conductive contact element 10 ,

The 13 shows a sectional view through a conductive contact element 10 and an insulating element 1 , The insulating element 1 has two sliding bayonet locks 4a on. These two sliding bayonet locks 4a are through the recesses 11 in the conductive contact element 10 has been inserted therethrough and then the insulating element 1 been moved so that the sliding bayonet wing 4a the conductive contact element 10 engage behind. That is, the sliding bayonet wings engage behind the embossed areas 13 of the conductive contact element 10 the conductive contact element 10 without protruding beyond. This saves space and puffs the clamp 18 not in addition to a variant without insulating on. Not shown in this 13 is the fastener 5 in corresponding holes 15 of the conductive contact element 10 snaps to the insulating element 1 to hold in the deferred position.

The 14 shows two electrical installation devices 20 , That in the 14 left illustrated installation device 20 points behind the opening 22 in the case 21 a clamp 18 on. This clamp 18 has a conductive contact element 10 on that through the opening 22 is visible. The right abge formed installation device 20 additionally has a on the conductive contact element 10 attached insulating element 1 on. The insulating element 1 is by snap hook 3 a snap device 2 on the formed as a clamping pressure piece conductive contact element 10 attached. The insulating element 1 is narrower than the terminal opening 22 , It can therefore be retrofitted with the installation device 20 through the terminal opening 22 through in the installation device 20 to be assembled. The insulating element 1 has production-related openings 7 on, through which the metal clamp pressure piece 10 you can see. However, these openings are 7 not big enough to clamp the clamping piece 10 to touch it with your finger behind. The insulating element 1 is here with four snap hooks 3 on the clamp pressure piece 10 attached. These snap hooks 3 grab in the recesses 11 in the clamping pressure piece 10 one, the extra narrow and formed on the edge of the clamping pressure piece 10 are attached. Furthermore, the recesses 11 from behind through the clamping frame 16 covered.

In the 15 is a pinch 18 with one on the conductive contact element 10 the clamp 18 via snap hooks 3 attached insulating element 1 shown. The recesses 11 in the conductive contact element 10 are arranged very far outside on the edge and partly through the clamping frame 16 covered. This significantly reduces the risk of incorrectly set conductor. The snap hooks 3 of the insulating element 1 are through the recesses 11 passed through and the front angled parts of the snap hooks 3 have the conductive contact element 10 engaged behind. 16 shows the same terminal 18 only without insulating element 1 , The recesses 11 of the conductive contact element 10 are at the contour of the conductive contact element 10 intended.

The 17 and 18 show a further embodiment of an insulating element 1 , In this case, the insulating element 1 on the first page 6a the plate-shaped body 6 four out of the main body 6 protruding snap hooks 3 on. These are resiliently designed to pass through the recesses 11 of the conductive contact element 10 bent and after passing through the recesses 11 the conductive contact element 10 due to the spring elasticity to reach behind this. That is, the insulating member 1 becomes on the conductive contact element 10 snapped. The snap hooks 3 preferably engage behind specially shaped areas 13 of the conductive contact element 10 , In the lateral transition of the body 6 of the insulating element 1 lies the torsion area 8th the snap-hook 3 while in the shaft of the snap hook 3 the bending area 9 lies. The openings 7 in the insulating element 1 allow the relatively short snap hook 3 more elastic travel. That is, at a deflection of the snap hook 3 there are areas 9 that bent and areas 8th who are being assassinated. By the length of the openings 7 can be the Aufschnappkraft the Schnapphakens 3 constructively adjust.

In the 19 is a conductive contact element 10 represented, on its lateral contour four recesses 11 for holding four snap hooks 3 a corresponding insulating element 1 having. At the second page 14 the recesses 11 of the conductive contact element 10 are distinct areas 13 provided by the bent tips of the snap hooks 3 be underrun.

In the 20 is an insulating element 1 shown in a sectional view that by means of snap hooks 3 on a conductive contact element 10 one clamp 18 is attached. The angled front portions of the snap hooks 3 engage behind the embossed areas 13 the recesses 11 of the conductive contact element 10 , This is the insulating element 1 safe at the terminal 18 assembled. The snap hooks 3 encompass due to the stepped or stamped areas 13 the trained as a clamping pressure piece conductive contact element 10 without sticking out. This saves space and puffs the clamp 18 not in addition to the variant without insulating on.

In the 21 to 23 are an insulating element 1 , a conductive contact element 10 and a clamp 18 with a conductive contact element 10 and an insulating element 1 shown. The insulating element 1 has four snap hooks 3 or the conductive contact element 10 has four sides of the contour of the conductive contact element 10 arranged recesses 11 for receiving the four snap hooks 3 of the insulating element 1 on. In this embodiment of the insulating element 1 are the snap hooks 3 generated by a tool slide.

In the embodiment according to the 24 to 26 are an insulating element 1 with two snap hooks 3 , a conductive contact element 10 with two recesses 11 to the exception of such an insulating element 1 as well as a clamp 18 with an insulating element 1 shown. In this variant, the production of snap hooks 3 possible without tool slide. The snap hooks 3 are in the lower part of the insulating element 1 appropriate. The upper end is in the installation device 20 guided and needs no additional fixation.

The 27 to 29 show embodiments of an insulating 1 with forcibly dismantled snap hooks 3 , The conductive contact element 10 requires a corresponding contour.

In the 32 is a further embodiment of an insulating element 1 shown. At the first page 6a the plate-shaped body 6 are two snap hooks 3 that the snap device 2 form, arranged. Furthermore, the insulating element 1 two fasteners 5 , which serve as a centering hook on. The snap hooks 3 serve to hold the insulating element to the conductive contact element 10 , The task of the centering hook 5 it is the insulating element 1 before snapping onto the conductive contact element 10 on the conductive contact element 10 pre-centered and so the assembly, so the snapping easier. These are the centering hooks 5 in suitable recesses 15 on the conductive contact element 10 introduced, see 31 , In the 30 is a terminal with a conductive contact element 10 shown, to which an insulating element 1 has been fastened.

The invention relates to an insulating element 1 , in a variant by means of compact snap hooks 3 on a conductive contact element 10 , as a clamp pressure piece, is attached. The recesses 11 in the clamping pressure piece 10 into which the snap hook 3 intervene are very narrow designed to avoid miscarriage. In addition, they are very far off-center, so on the edge of the clamping pressure piece 10 arranged. A possibly inserted conductor is then not centered to the installation device 20 but off-center, what the user would notice. By Außermittigkeit the recesses 11 also from the behind the clamping pressure piece 10 lying clamping frame 16 completely or partially covered, which additionally prevents the miscarriage. The insulating element 1 is only on the clamping pressure piece 10 attached and requires no guide on its left and right sides in the housing 21 of the installation device 20 what allows that insulating element 1 narrower than the opening 22 in the case 21 to design. This is a mounting of the insulating 1 after installing the terminals 18 in the case 21 still possible because the insulating elements 1 only from the outside to the clamping pressure piece 10 to be assembled.

In another variant is an insulating element 1 provided by means of a compact bayonet closure 4 on the clamping pressure piece 10 is attached. Possible is a Drehbayonettverschluss 4b or a straight-line sliding bayonet catch 4a , The insulating element 1 is firmly attached to the clamping pressure piece 10 assembled. The bayonet contour takes over both the positioning of the insulating 1 on the clamping pressure piece 10 , as well as the stable tight fit, the falling of the insulating 1 from the clamping pressure piece 10 prevented. The insulating element 1 therefore does not need a guide on its left and right side in the housing 21 of the installation device 20 what allows it, the insulating element 1 make narrower. This is an assembly after installation of the terminals 18 in the case 21 possible because the insulating elements 1 from the outside to the clamping pressure piece 10 to be assembled. The insulating element 1 has at its the clamping pressure piece 10 facing side 6a at least one hook shape. This is the clamping pressure piece 10 by the at least one corresponding counter contour, ie, the recess 11 , inserted and secured against loosening by turning or pushing. Secured means that in addition one or more fasteners designed as pins in corresponding openings 15 of the clamping pressure piece 10 snap and thereby prevent a rotary / sliding movement against the assembly movement.

The connection of the insulating element 1 and the conductive contact element 10 by means of compact snap hook 3 or by means of a compact but reliable bayonet closure allows the insulating element 1 safely on the installation device 20 to be mounted without it on housing walls 21 to have to lead. This allows the insulating element 1 after installing the terminals 18 in the case 21 , so very late in the production process, be mounted. This offers the advantage that it is possible, the variant variety, by selling additional features for higher-priced installation equipment 20 , as, among other things, the additional insulating element 1 As Umgreifschutz, only at the end of the production process to produce, and so lean the main part of the production, so to keep variant.

It also prevents the device case 21 for variants with insulating element 1 a wide guide for the conductive contact element 10 and the insulating element 1 needs while it is in variants without insulating 1 only a narrow guide for the conductive contact element 10 needed alone. This saves housing variants and costs through additional housing tools.

Through the narrow recesses 11 in the conductive contact element 10 which are installed far from the outside and from the small clamping frame 16 At least partially covered, a mismatch stuck in cheaper series without insulating 1 effectively prevented.

Through the narrow, far off-center recesses 11 in the conductive contact element 10 is also the remaining residual cross section of the conductive contact element 10 maximum. This is advantageous for the transmission of high mechanical loads and currents.

The conductive contact element 10 is designed so that the areas 13 from the snap hooks 3 or the bayonet wings are engaged behind, are embossed, that is, the conductive contact element 10 is at these areas 13 so thin that these areas 13 and the angled tips of the snap hooks 3 or the bayonet wing together are not thicker than the sheet thickness of the conductive contact element 10 even.

1

insulating

2

latching or snap device

3

resiliently trained snap hooks

4

bayonet catch

4a

Slide bayonet lock

4b

Rotary bayonet lock

5

fastener

6

plate-shaped body

6a

first Side of the plate-shaped the body

6b

second Side of the plate-shaped the body

7

openings in the plate-shaped body of the insulating element

8th

torsion the snap-hook

9

bending area the snap-hook

10

conducting contact element

11

recesses

12

first Side of the conductive contact element

13

embossed area

14

second Side of the conductive contact element

15

opening

16

clamping frame

17

clamping screw

18

clamp

20

electrical installation device

21

casing

22

opening

Claims (19)

Insulating element for covering a conductive contact element of an electrical installation device, wherein the conductive contact element is arranged behind an opening in the housing of the electrical installation device, characterized in that the insulating element ( 1 ) a latching or snap-on device ( 2 ) for engaging behind at least a portion of the conductive contact element ( 10 ) and for securing the insulating element ( 1 ) on the conductive contact element ( 10 ) having. Insulating element according to claim 1, characterized in that the shape of the insulating element ( 1 ) is smaller than the opening ( 22 ) in the housing ( 21 ) of the electrical installation device ( 20 ), so that the insulating element ( 1 ) through the opening ( 22 ) on the conductive contact element ( 10 ) is attachable. Insulating element according to claim 1 or 2, characterized in that the latching or snap device ( 2 ) at least one spring-loaded snap hook ( 3 ) having. Insulating element according to claim 1 or 2, characterized in that the latching or snap device ( 2 ) a bayonet closure ( 4 ) having. Insulating element according to claim 4, characterized in that the bayonet closure ( 4 ) as a sliding bayonet catch ( 4a ) or as a rotary bayonet lock ( 4b ) is trained. Insulating element according to one of the preceding claims 4 or 5, characterized in that the insulating element ( 1 ) at least one fastening element ( 5 ) for engaging in an opening ( 11 ) of the conductive contact element ( 10 ) having. Insulating element according to one of the preceding claims 1 to 6, characterized in that the insulating element ( 1 ) a plate-shaped basic body ( 6 ) and that the latching or snap device ( 2 ) on a first page ( 6a ) of the plate-shaped basic body ( 6 ) is arranged. Insulating element according to claim 7, characterized in that the latching or snap device ( 2 ), in particular the at least two spring-elastic snap hooks ( 3 ), at the edge of the plate-shaped base body ( 6 ) are arranged. Insulating element according to one of the preceding claims 7 or 8, characterized in that on the second side ( 6b ) of the plate-shaped main body ( 6 ) at least one gripping device for gripping the insulating element ( 1 ) is provided. Insulating element according to one of the preceding claims 7 to 9, characterized in that the plate-shaped basic body ( 6 ) of the insulating element ( 1 ) Openings ( 7 ), which at the foot of the latching or snap device ( 2 ) are provided. Conductive contact element of a terminal of an electrical installation device, wherein the conductive contact element is arranged behind an opening in the housing of the electrical installation device, characterized in that the conductive contact element ( 10 ) at least one recess ( 11 ) for the passage of a latching or snap device ( 2 ) of an insulating element ( 1 ) according to one of claims 1 to 10. Conductive contact element according to claim 11, characterized in that the at least one recess ( 11 ) at the edge or contour of the conductive contact element ( 10 ) are provided. Conductive contact element according to claim 11, characterized in that the at least one recess ( 11 ) for the passage of a bayonet closure ( 4 ) is trained. Conductive contact element according to one of the preceding claims 11 to 13, characterized in that the conductive contact element ( 10 ) at the opening ( 22 ) in the housing ( 21 ) of the electrical installation device ( 20 ) facing away ( 12 ) at least one embossed area ( 13 ) for receiving a part of the latching or snap device ( 2 ) having. Conductive contact element according to claim 14, characterized in that the at least one embossed region ( 13 ) inclined to the opening ( 22 ) in the housing ( 21 ) of the electrical installation device ( 20 ) facing side ( 14 ) runs. Conductive contact element according to one of the preceding claims 11 to 15, characterized in that the conductive contact element ( 10 ) at least one opening ( 15 ) for receiving a fastener ( 5 ) of the insulating element ( 1 ) having. Conductive contact element according to one of the preceding claims 11 to 16, characterized in that the conductive contact element ( 10 ) represents a clamping press piece of a terminal. Electrical installation device having at least one opening and a terminal arranged behind the at least one opening in the housing of the electrical installation device terminal with a conductive contact element, characterized in that the conductive contact element ( 10 ) is formed according to one of claims 11 to 17. Electrical installation device according to claim 18, characterized in that the conductive contact element ( 10 ) an insulating element ( 1 ) according to one of claims 1 to 10.