DE102021107998A1 - Seal with at least one integrated conductor - Google Patents

Abstract

The invention relates to a sealing profile for a window or door frame profile made from an elastic material, in particular from EPDM, comprising a sealing area with at least one sealing lip (31), in particular a hollow sealing lip (31), and a fastening area (32) for fastening to a window or door frame profile (20), wherein the sealing profile comprises at least one electrical conductor (41a, 41b, 41c) which is embedded in the elastic material, in particular which is completely surrounded by the elastic material in cross-section perpendicular to the direction of extension. The invention also relates to a frame profile with such a sealing profile.

Description

The invention relates to a sealing profile of a window or door frame profile made of an elastic material comprising a sealing area with at least one sealing lip, in particular a hollow sealing lip, and a fastening area for fastening to a window or door frame profile.

The invention also relates to a window or a door or the like, with a blind and/or sash frame profile comprising several hollow chambers, the blind frame profile being fixed to the masonry and the sash frame profile being movably connected to the blind frame profile and the blind and sash frame profile being positively and detachably connected are connected via at least one seal from a sealing profile in the closed state.

Sealing profiles are usually made of an elastic material, e.g. EPDM, in order to provide an inherent elastic resilience which provides the sealing function between the frame and sash when they come into contact via the seal. A sealing profile within the meaning of the invention is understood as meaning a seal which has a longitudinal extension and has the same cross section everywhere along the longitudinal extension (perpendicular to the longitudinal extension). Such sealing profiles can, for example, be extruded, in particular practically endlessly.

In the case of windows or doors with electrical functional elements such as electrical drives, fittings, sensors or other power consumers, it is necessary to lay a cable with at least one electrical conductor for power supply and/or control to the electrical functional elements.

According to the state of the art, cables are routed through hollow chambers or laid through cable grooves for this purpose.

After DE 195 18 397 A1 electrical cables are routed along the rebate of the door leaf or frame. The cable is a flat ribbon cable that is routed through an inserted piece of pipe in a specially provided through hole in the door leaf or frame.

The disadvantage here is the additional effort involved in installation and the arrangement in a weather-exposed area on the facade, which entails the risk of leakage currents and corrosion if moisture penetrates.

In the DE 20 2005 000 579 U1 describes a frame profile for a blind or casement frame of a window, a door or a facade with a cable groove arranged on the outer circumference of the profile for receiving an electrical cable with at least two or more electrical conductors.

A disadvantage here is the need for a cable groove that has to be created specifically and into which a ribbon cable that is to be used can be inserted.

In addition, the known arrangements are often visually unsatisfactory and also do not meet the requirements of a modern assembly process for other reasons. The cables are usually open and unprotected, disrupt the optics and assembly and make production more expensive.

The object of the invention is to provide an unobtrusive, protected guide for at least one electrical conductor, preferably several electrical conductors, in a window or door. Preferably, no structural changes to the frame profiles of the window or the door should be necessary for the ladder routing. It is also an object to be able to run the ladder around the window or a door and preferably to use components that are already available for this purpose.

This object is achieved in that the sealing profile of a window or door frame profile, in particular the sealing profile for plastic hollow chamber profiles, comprises at least one electrical conductor which is embedded in the elastic material. Embedding preferably means that a respective electrical conductor is completely surrounded by the elastic material of the sealing profile, e.g. by EPDM, in a cross section perpendicular to the direction of extension.

In addition to the advantage of invisible integration, this also saves a great deal of time during installation. Another important advantage is the convertibility. No changes need to be made to the frame profile of a window or door, since the sealing profiles according to the invention also have the usual fastening elements, e.g. fastening feet, and can thus be used in the known manner in existing fastening grooves of the frame profiles. In particular, conventional seals that are pulled in by hand can thus be exchanged in an uncomplicated manner for seals that are provided with at least one electrical conductor.

According to the present invention, it was recognized that electrical/electronic accessory elements can be connected particularly easily to a casement or frame profile for a window or a door if they can be connected to the sealing profile strands. Seals are located on different levels of the window or door and are usually all the way around, so that electrical conductors can conveniently supply electricity or electrical signals, in particular control signals, to any part of the window/door.

The sealing profile according to the invention can be used as a current-carrying seal in a frame of a window or a door, with the use in a window frame or window frame profile, preferably as a central seal, being particularly advantageous because it is connected to the masonry and thus enables a particularly simple electrical supply of the at least one conductor from the building environment is possible.

Seals on windows or doors, in particular center seals, are preferably drawn into finished window frames by hand. They consist of a low-wear, elastomeric material, preferably EPDM. EPDM is the abbreviation for ethylene propylene diene rubber and is one of the high quality synthetic rubbers. The synthetic rubber is characterized by a very high resistance to various influences. Depending on the mixture, EPDM is resistant to signs of aging, ozone, UV radiation, weather influences and biogas. The elastomer is also insensitive to esters, ketones, alcohols, alkalis and acids. It is only attacked by mineral oils and fats. EPDM also shows good tensile strength, elongation at break and resilience.

Furthermore, the material shows a very high temperature resistance, so that the operating temperature range of EPDM extends from -60 °C to +160 °C. This means that the elastomer is also resistant to hot water and steam, depending on the mixing ratio.

In particular, EPDM is excellently suited as an insulator for electrical conductors and can thus also be used according to the invention as an insulating material. However, the invention is not limited to the use of EPDM in the sealing profile. Other materials, in particular materials that are customary for seals, can also be used, e.g. silicone, NBR, PU, FKM or similar.

Provision can preferably be made for the at least one electrical conductor to extend completely over the entire longitudinal extension of the sealing profile in the latter. In this way in particular, a circulating power or signal supply can also be guaranteed. However, it can also be provided that the at least one electrical conductor only extends over a section of the sealing profile in the latter.

Provision is preferably made for the at least one electrical conductor to be embedded in bare metal in the elastic material of the sealing profile. Bare metal is understood here to mean that the electrical conductor itself has no further insulation. In this case, the elastic material of the sealing profile can form the sole electrical insulation of the at least one electrical conductor.

However, the invention can also provide for the at least one electrical conductor to be embedded in the elastic material with insulation surrounding the conductor. In this case, the elastic material also has an insulating effect, but not solely for the conductor. This design corresponds to the embedding of at least one wire in the elastic material.

The at least one electrical conductor can be embodied as a rigid conductor, but also as a flexible conductor, that is to say in particular it can comprise stranded wire.

The invention is also based on the idea of preferably guiding several electrical conductors in parallel next to one another in the sealing profile, but keeping the height structure low, in particular not bundling the conductors in a circle around a center point or a central axis as is usual. It is therefore preferred that the sealing profile comprises at least two electrical conductors, with all electrical conductors, in particular their central axis, running in a common plane. It is assumed here that the conductor and the sealing profile run in a straight line.

Furthermore, the conductors lying next to one another are preferably spaced apart by the elastic material of the sealing profile. If the conductors themselves carry insulation, ie form wire conductors, it can also be provided that no elastic material of the sealing profile is arranged between the insulation of the conductors, ie between the wire sheaths. The wire conductors can therefore contact each other.

This type of arrangement of the conductors in a common plane has the advantage that the conductors do not overlap one another, resulting in a lower height structure and easy access to the conductors through the material of the sealing profile. It is also preferred that the sealing profile has an outer has a flat surface which is arranged parallel to the common plane of the conductors. This surface can preferably only be spaced apart from the electrical conductors or their insulation by a thickness of the elastic material provided for the electrical insulation.

Such a planar surface can form a fastening surface for an electrical component, in particular which can contact the conductors through the elastic material by means of piercing contacts.

A first preferred embodiment can provide that the sealing profile comprises at least two profile legs, in particular exactly two profile legs, with a first profile leg comprising the at least one sealing lip and a second profile leg forming the fastening area. The fastening area can preferably be designed as a fastening foot which can be inserted into a fastening groove of a window or door profile.

In the profile cross-section, the fastening area/fastening foot can preferably have an extent which is transverse, preferably perpendicular, to the common plane of the electrical conductors. Two opposing undercuts on the mounting foot can preferably lie parallel to the common plane of the electrical conductors.

In this embodiment, the fastening area, preferably the fastening foot, can be connected indirectly to the at least one sealing lip via a transition area, the at least one electrical conductor being arranged in the transition area, preferably the plurality of conductors being arranged. In this version, after installation, a conductor covers the fastening groove into which the fastening foot is pressed.

In this embodiment, a conductor, in particular one of several, can also be arranged directly adjacent to a hollow chamber in the sealing profile, which lies behind the sealing lip of the sealing profile. Conductor and cavity can only be separated by a thickness of material that is intended for insulation around the conductor. The conductor insulation can thus form the hollow chamber wall in certain areas.

In another embodiment, it can also be provided that the sealing profile comprises at least three profile legs, in particular exactly three profile legs, with a first profile leg comprising at least one sealing lip and a second profile leg forming the fastening area, in particular the fastening area being designed as a fastening foot which in a fastening groove of a window or door profile can be used and a third profile leg comprises the at least one electrical conductor, preferably at least two or even more electrical conductors.

The design can preferably be designed such that the third profile leg and the profile leg of the fastening area, in particular the fastening foot, run parallel, but in particular offset in height, in particular with the free ends of both legs facing away from one another. A fastening area, in particular a fastening foot, can be inserted into a receiving groove on the frame profile, and the profile leg, which has the at least one conductor, can rest on a wall area of the frame profile in front of the groove opening, in particular lying flat. The conductor or conductors are thus outside of the groove and are accessible for contacting, but are supported on the wall area of the frame profile. Said wall area can, for example, be the bottom of the frame rebate, in particular the bottom of a fastening groove of the frame profile, on which locking elements, e.g. the so-called locking plates, are mounted.

In this embodiment, the third profile leg preferably has two planar surfaces when it is designed with a plurality of conductors, which lie parallel to and around the common plane of the plurality of conductors. Thus, after assembly, one of the surfaces faces the aforementioned wall area and is supported thereon, and the other can form the aforementioned attachment surface for electrical components, in particular those with piercing contacts.

Provision can furthermore preferably be made for the three profile legs to be connected via a common connection area from which they all extend. This connection area can preferably form an articulated connection between the profile leg with the sealing lip and the profile leg with the at least one electrical conductor, preferably with the plurality of electrical conductors.

The invention is described in more detail below using the sealing profile as a center seal, but is not limited to this.

The center seal is pulled in by hand during assembly by pressing the sealing foot into the seal receiving groove and then pulling it in over the entire length of the groove. When the window is closed, the sealing lip acts as a protruding part to form a seal with the casement profile together. In addition to this central sealing function, the middle seal is particularly suitable in terms of material and position/position to expand its function to include conductor routing, especially through areas that offer space for electrical conductors.

The inner space between the underside of the sash and the top of the frame is referred to as the chamber dimension when closed. The ladder guide preferably extends into the frame rebate, in particular the aforesaid third profile leg is located there. The constructive design in which the conductor guide or the third profile leg is formed is not restricted. The conductor guide advantageously offers space for a plurality of electrical conductors, in particular at least two, in particular which are arranged in a specific way, so that the connection of removal contacts hits the conductor with accuracy. The parallel juxtaposition of conductors or wires in the seal has the advantage that the seal can be pierced with piercing contacts, for example, in order to contact the conductors/wires without having to open the sealing profile.

The ladder guide enables a space-saving, optically advantageous accommodation of several ladders, e.g. directly on the window frame profile. Accommodation on the casement frame is also conceivable.

Due to its external geometric design in combination with the elastic rubber material, the center seal fulfills both a sealing function with respect to the casement frame and a conductor guiding function, preferably with simultaneous insulation.

The invention is explained in more detail below with reference to the drawings. The following explanations refer to a frame profile for a window as an example and also apply accordingly to a frame profile for a door. The idea of the invention is clearly illustrated and described in the figures using an embodiment for a central seal. The principle also applies in general to other seals used in windows or doors.

• 1a: einen Querschnitt durch ein Flügelrahmen- und ein Blendrahmenprofil mit einer herkömmlichen Mitteldichtung ohne Kabel in geschlossenem Zustand in perspektivischer Ansicht
• 1b: einen Querschnitt einer ersten erfindungsgemäßen Mitteldichtung am Blendrahmen
• 1c: einen Querschnitt einer zweiten erfindungsgemäßen Mitteldichtung am Blendrahmen
• 2: eine erfindungsgemäße Mitteldichtung mit Kabelführung in der der Vorderansicht
• 3: eine erfindungsgemäße Mitteldichtung mit Kabelführung in isometrischer Ansicht

The figures show in detail:

• 1a : a perspective view of a cross section through a sash frame profile and a window frame profile with a conventional center seal without a cable in the closed state
• 1b : a cross section of a first center seal according to the invention on the window frame
• 1c : a cross section of a second center seal according to the invention on the window frame
• 2 : a center seal according to the invention with cable routing in the front view
• 3 : a center seal according to the invention with cable routing in an isometric view

1a shows a perspective view of a cross section through a sash frame profile and a window frame profile 10, 20 with a conventional center seal without a cable in the closed state. In this figure, a window with an embodiment of a conventional window frame profile 20 is shown. The window comprises a window frame formed from window frame profiles and a casement frame formed from window frame profiles 10, which has a plurality of circumferential hollow chambers. Both the frame profiles 20 and the casement profiles 10 are plastic profiles extruded from rigid polyvinyl chloride (PVC-U). Together with a glazing bead 13, the casement forms a rebate area 14, in which a surface element 11 designed as insulating glazing is accommodated and which runs around the surface element 11 on the front side.

At the in 1a illustrated embodiment, the surface element 11 is an insulating glazing with three panes of glass.

A stop seal 23 accommodated in a seal receiving groove is arranged on the outer overlap of the window frame 20 .

Likewise, in the closed state, the sash 10 rests against a further stop seal 23 which is accommodated in a seal receiving groove of the window frame 20 . Steel reinforcements 15, 15' are inserted into the respective main hollow chambers of the window frame and casement profiles.

A center seal 30 is arranged in the frame rebate 21 between the frame profile 20 and the casement profile 10 , the fastening foot 32 of the center seal 30 being accommodated in the seal receiving groove 36 of the frame profile 20 . When the window is closed, a sealing lip 31 of the center seal 30 rests against the casement profile 10 .

These statements on the prior art also apply to the variant according to the invention, with the central seal 30 being designed as a sealing profile according to the invention.

the 1b shows a center seal 30, in conjunction with the 2 and 3 is visualized in detail.

the 1b , 2 and 3 show a central seal 30 according to the invention with a conductor guide 35 in cross section perpendicular to the direction of longitudinal extent. The center seal 30 is designed with three legs based on the above general descriptions.

The sealing lip 31 forms the sealing area and is arranged on the first profile leg, the fastening foot 35 forms the fastening area and is arranged on the second leg, and the conductor guide in the third profile leg 35.

2 shows the center seal 30 1b , with molded conductor guide 35. It is easy to see that in the frame rebate 21 at least one conductor guide, which preferably extends parallel to the frame profile 20, in the third profile leg 35, in particular for positively and non-positively accommodating electrical conductors 41a, b, c, or wires 40a, b , c is arranged. In a preferred embodiment, this ladder guide 35 is arranged on the base of the frame rebate 21 of the frame profile 20 . However, it is also conceivable to arrange a conductor guide within a seal at any other point on the profile frame, for example according to FIG 1c .

In the execution of 1b the third leg 35 or the ladder guide lies with a flat surface on the base or floor 21 of the frame rebate and is supported. The other flat surface is accessible (in this view from above), eg for piercing
contacts. Both flat surfaces surround the common plane of the conductors 41a,b,c and are parallel to it.

The electrical conductors 41a, b, c or cores 40a, b, c are firmly embedded in the conductor guide 35 and are each completely encased by the elastic material of the sealing profile 30. The ladder guide 35, which extends parallel to the frame profile 20 at its frame rebate 21, offers the advantage that the conductors 41a, b, c or wires 40a, b, c are protected and covered and do not interfere with the appearance of the window without affecting the assembly of the center seal 30 in the seal receiving groove 22 is made more difficult or that the conductor guide 35 interferes with this assembly.

It would also be conceivable to provide a corresponding conductor guide on a different seal (not shown here).

The compact arrangement of the ladder guide 35 in the frame rebate 21 of the frame profile 20 is preferred.

Depending on the design, the casement profile 10 can be used to produce a turn window, a tilt window, a turn/tilt window, a sliding window or, for example, balcony glazing.

The conductor guide 35 for accommodating one or more electrically conductive conductors is always advantageous when it comes to supplying energy to electrical/electronic functional elements on the window such as locking elements, sensors, lamps such as LEDs or a drive for opening and closing.

For this purpose, the center seal 30 with internal conductors 41a,b,c or wires 40a,b,c is drawn in, preferably circumferentially, in the frame in order to the functional elements to be controlled or to be supplied with energy, such as a drive or an electrical lock reach. Preferably, in a corner area, the conductors transition uninterruptedly between the sealing profile sections running in different directions.

The fact that conventional center seals can be easily removed from the seal receiving grooves and replaced with center seals with integrated conductors 41a,b,c or cores 40a,b,c is advantageous.

The conductor guide 35 here has, for example, three copper conductors 41a, b, c arranged parallel to one another in one plane, which each have a conductor insulation 42a, b, c and which are embedded in the conductor guide 35 together with the conductor insulation. With their insulation 42a, 42b, 42c, the conductors 41a, 41b, 41c form so-called cores or core conductors 40a, b, c. Provision can also be made for the conductors 41a, 41b, 41c to be embedded in the material of the sealing profile 30 without their own insulation, ie bare metal. The copper conductors 41a, b, c consist, for example, of preferably tinned copper strands, for example with a diameter of. 2.5 mm, preferably with insulation. The conductor cross-section is preferably 1.5 mm ² .

The ladder guide 35 can be formed on the upper and/or lower profile and/or the opposite profile of the casement, ie completely or partially circumferentially (again not visible here).

The conductor arrangement here has three stranded conductors 41a, b, c, for example. However, versions with more or less lei are also conceivable tern if, for example, only one power supply is required to supply an electric drive or to supply many drives.

The center seal 30 has two cavities (33, 34). They serve different purposes. Cavity 33 is located in the sealing lip 31 and serves to save material and the flexibility of the sealing lip. The mounting foot 32 is provided with the cavity 34 so that the mounting foot 32 is pressed in more easily during assembly.

3 shows the center seal 30 of the invention 1b and 2 with ladder guide 35 in isometric view.

In the 1c the center seal 30, however, is designed with 2 legs. The first leg comprises the sealing area with the sealing lip 31, the second leg the fastening area with the fastening foot 32 and its cavity 34. The conductors 41a, 41b, 41c are arranged in the connection area of both legs.

The flat surface of the center seal 30 parallel to the common plane of the conductors 41a,b,c is perpendicular to the frame rebate floor 21 and parallel to the free groove wall ends of the fastening groove 22. The surface is accessible from the frame rebate. When making contact, e.g. with piercing contacts, the sealing profile 30 is thus supported against the piercing force acting on the free groove wall ends of the groove 22. The electrical component to be mounted can rest against the flat surface.

Reference List

100

Window door

10

casement profile

11

surface element

13

glazing bead

14

fold area

15, 15'

steel reinforcements

20

frame profile

21

frame rebate

22

seal receiving groove

23

bump seal

30

Central seal, sealing profile according to the invention

31

sealing lip

32

mounting foot

33, 34

cavity

35

Cable routing, third profile leg

36

seal receiving groove

40a,b,c

Vein

41a,b,c

director

42a,b,c

conductor insulation

QUOTES INCLUDED IN DESCRIPTION

This list of 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 19518397 A1 [0006]
• DE 202005000579 U1 [0008]

Claims (16)

Sealing profile of a window or door frame profile made of an elastic material, in particular EPDM, comprising a sealing area with at least one sealing lip (31), in particular a hollow sealing lip (31), and a fastening area (32) for fastening to a window or door frame profile (20 ), characterized in that it comprises at least one electrical conductor (41a, 41b, 41c) which is embedded in the elastic material, in particular which is completely surrounded by the elastic material in cross-section perpendicular to the direction of extension. sealing profile claim 1 , characterized in that the at least one electrical conductor (41a, 41b, 41c) extends completely over the entire longitudinal extent of the sealing profile (30) in this. Sealing profile according to one of the preceding claims, characterized in that the at least one electrical conductor (41a, 41b, 41c) is embedded bare metal in the elastic material, in particular the elastic material forms the sole electrical insulation of the electrical conductor. Sealing profile according to one of the preceding claims, characterized in that the at least one electrical conductor (41a, 41b, 41c) is embedded in the elastic material with insulation (42a, 42b, 42c) surrounding the conductor (41a, 41b, 41c). Sealing profile according to one of the preceding claims, characterized in that it comprises at least two electrical conductors (41a, 41b, 41c), all electrical conductors (41a, 41b, 41c), in particular their central axis, running in a common plane. sealing profile claim 5 , characterized in that it has an outer planar surface which is arranged parallel to the common plane of the conductors (41a, 41b, 41c), in particular the only thickness of the elastic material provided for electrical insulation from the electrical conductors (41a, 41 b, 41c) or their insulation (42a, 42b, 42c) is spaced apart. sealing profile claim 5 or 6 , characterized in that the flat surface forms a fastening surface for an electrical component, in particular which can contact the conductors (41a, 41b, 41c) through the elastic material by means of piercing contacts. Sealing profile according to one of the preceding claims, characterized in that it comprises at least two profile legs, in particular exactly two profile legs, with a first profile leg comprising the at least one sealing lip (31) and a second profile leg comprising or forming the fastening area (32), in particular the fastening area is designed as a fastening foot (32) which can be inserted into a fastening groove (22) of a window or door profile. sealing profile claim 8 , characterized in that the fastening area/fastening foot (32) has an extension in the profile cross section which is transverse, preferably perpendicular to the common plane of the electrical conductors (41a, 41b, 41c), in particular two opposite undercuts on the fastening foot parallel to the common plane of the electrical conductors (41a, 41b, 41c). Sealing profile according to one of the preceding claims, characterized in that the fastening area, preferably the fastening foot (32), is connected indirectly to the at least one sealing lip (31) via a transition area, with the at least one electrical conductor (41a, 41b, 41c ) is arranged. Sealing profile according to one of the preceding claims, characterized in that it comprises at least three profile legs, in particular exactly three profile legs, with a first profile leg comprising the at least one sealing lip (31) and a second profile leg comprising or forming the fastening area (32), in particular the fastening area designed as a fastening foot (32) which can be inserted into a fastening groove (22) of a window or door profile (20) and a third profile leg (35) the at least one electrical conductor (41a, 41b, 41c), preferably at least two electrical conductors (41a, 41b, 41c). sealing profile claim 11 , characterized in that the third profile leg (35) and the profile leg of the fastening area, in particular the fastening foot (32) run parallel, in particular with the free ends of the two legs facing away from one another. sealing profile claim 11 or 12 , characterized in that the third profile leg (35) has two flat surfaces which lie parallel to and around the common plane of the plurality of conductors (41a, 41b, 41c). Sealing profile according to any of the previous ones Claims 11 until 13 , characterized , that the three profile legs are connected via a common connection area from which they all extend, preferably with the connection area forming an articulated connection between the profile leg with the sealing lip (31) and the profile leg (35) with the at least one electrical conductor (41a, 41b, 41c), preferably with the plurality of electrical conductors (41a, 41b, 41c). Use of a sealing profile (30) according to one of the preceding claims as a seal, in particular as a central seal (30) between a window frame (20) and a casement frame (10) of a window or a door. Frame or frame profile (20) of a window or a door with a sealing profile (30) according to one of the preceding claims.

Images