EP3953534A1 - Dispositif de verrouillage avec un canal de ventilation - Google Patents

Dispositif de verrouillage avec un canal de ventilation

Info

Publication number
EP3953534A1
EP3953534A1 EP21733744.3A EP21733744A EP3953534A1 EP 3953534 A1 EP3953534 A1 EP 3953534A1 EP 21733744 A EP21733744 A EP 21733744A EP 3953534 A1 EP3953534 A1 EP 3953534A1
Authority
EP
European Patent Office
Prior art keywords
locking
locking device
potting material
closing element
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP21733744.3A
Other languages
German (de)
English (en)
Other versions
EP3953534B1 (fr
Inventor
Klaus Rodemann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rahrbach GmbH
Original Assignee
Rahrbach GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rahrbach GmbH filed Critical Rahrbach GmbH
Publication of EP3953534A1 publication Critical patent/EP3953534A1/fr
Application granted granted Critical
Publication of EP3953534B1 publication Critical patent/EP3953534B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/38—Connections for building structures in general
    • E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
    • E04B1/6108—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together
    • E04B1/612—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces
    • E04B1/6183—Connections for building structures in general of slab-shaped building elements with each other the frontal surfaces of the slabs connected together by means between frontal surfaces with rotatable locking means co-operating with a recess
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet
    • F25D23/063—Walls defining a cabinet formed by an assembly of panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/12—Insulation with respect to heat using an insulating packing material

Definitions

  • the invention relates to a locking device for locking two components, in particular two panels of a cold room, with a pourable, in particular foamable, locking housing in which a locking element is arranged.
  • the invention also relates to a component with a corresponding locking device and a method for fastening a locking device in a component.
  • Locking devices are used in very different areas of technology to lock two components against one another so that they can no longer be moved relative to one another.
  • Corresponding locking devices usually have a locking housing and a locking element arranged in the locking housing, which engage in a corresponding locking device in the other component and can thus lock or connect the two components to one another.
  • a typical example of such a locking device is, for example, a door lock for locking a door with respect to a door frame.
  • corresponding locking devices are also used when locking or connecting two panels.
  • One possible area of application of such panels that can be locked together via locking devices is, for example, cold rooms in which food, drugs or chemical substances can be kept refrigerated.
  • the panels are mostly put together in the manner of modules and connected to one another via appropriate locking devices to form a cooling space.
  • Such a locking device referred to as a Spannvor direction, with a locking device housing in which a locking element is arranged is disclosed, for example, in DE 10 2004 042 864 A1. Since the panels of a cold room must have good insulation properties, they usually consist to a large extent of potting material, which is often designed as a foamable and hardening material. In practice, polyurethane foam has proven itself in this regard.
  • this material is poured or foamed into a receiving space of the respective panel, where it then hardens.
  • the gas in the panel which is usually air
  • the expanding foam is displaced by the expanding foam and, for example, discharged via outlet openings on one side of the panel or via hoses, so that then gradually the Foam displaces or replaces the gas in the receiving space.
  • the locking device In order to connect the locking device to the panel, it is usually inserted and fixed in the receiving space before it is filled with foam.
  • the locking housing is at least partially covered with foam, so that after the foam has hardened, the locking housing is firmly embedded in the foam and is thus connected to the panel.
  • the foam thus not only ensures good insulation, but also a reliable connection between the locking device and the panel.
  • this type of connection between panel and locking device has proven itself, however, voids can form when foaming due to the geometry in the area of the locking housing if the expanding foam does not completely displace the air in the receiving space can, but rather includes them.
  • the locking housing basically acts like a disruptive body for the foam spreading in the receiving space, there is an increased risk of corresponding air inclusions in the area of the locking housing in particular. Although this risk is particularly to be feared when using foams or foamable materials due to their largely undefined surfaces, potting materials in general and in particular also purely liquid potting materials can cause air inclusions.
  • this object is achieved by a venting channel, which is guided through the locking housing, for discharging gaseous media.
  • the ventilation channel enables gas or air to be passed through the locking housing of the locking device to the outside.
  • the air located in the receiving space of the component or the panel can be diverted precisely at the point where air inclusions are most likely to be feared and where air inclusions have the greatest negative influence.
  • Gas and air are treated as synonyms in the context of this application.
  • the potting material displaces the air in the receiving space during potting, it can be diverted to the outside through the ventilation duct and the potting material can reliably wash around the locking housing. The risk of air inclusions is therefore reduced in the area around the locking housing so that the hold of the locking device in the foam is improved is.
  • further outlet openings in the component and hoses for discharging gas can be completely or at least partially dispensed with.
  • the ventilation channel can be designed as an integral part of the housing.
  • a panel is not only valid for a panel itself, but also for a component in general.
  • descriptions that relate to foamable material are not limited to a foamable material or to foam, but rather apply very generally to material or potting material.
  • the potting material is advantageously designed as an at least partially foamable and at least partially hardening material.
  • the locking device or the locking housing can be flushed around in a receiving space of one of the two panels to be connected via a potting compound, in particular foamable over an at least partially foamable and partially hardening material and thus attachable in the receiving space.
  • a potting compound in particular foamable over an at least partially foamable and partially hardening material and thus attachable in the receiving space.
  • a suitable foamable material is, for example, polyurethane foam, in particular two-component polyurethane foam.
  • Polyurethane is easy to process and offers sufficient strength and adequate insulation properties.
  • the ventilation channel it has turned out to be advantageous if it is designed to be self-closing or self-locking. This enables air to reliably pass through the ventilation duct and thus be discharged. However, as soon as potting material enters, the venting channel is closed, in particular automatically, so that it cannot pass through the venting channel and the potting material is thus inhibited.
  • the ventilation channel can thus represent a barrier for the potting material or for the foamable material, so that it is prevented that this can pass through the ventilation channel to the outside.
  • the diameter of the ventilation channel can be dimensioned as a function of the material used, so that due to the viscosity of the material, it cannot penetrate the ventilation channel, or only to a small extent.
  • the ventilation channel has a certain length, so that it is prevented that the material can reach the end of the ventilation channel.
  • the ventilation channel can, for example, be designed in a meandering shape and have one or more deflections.
  • the ventilation duct can in this respect be designed or function in the manner of a labyrinth seal.
  • a valve is understood to be a device for controlling and regulating the flow of a medium.
  • the ventilation channel can be closed via the valve, so that then neither air nor potting material or foamable material can flow through the ventilation channel.
  • the valve it has been found to be advantageous if it is designed in such a way that it can pass gaseous media and does not allow potting material to pass. In this respect, a separation can be carried out by the valve and it is ensured that air can be reliably discharged, but at the same time potting material cannot leave the receiving space.
  • the closing element can in this respect be air-permeable and liquid-impermeable. Impermeable does not mean, however, that the closing element has to be completely liquid-tight, but that under technically sensible boundary conditions the liquid or the foamable and also partially foamed material cannot pass the closing element.
  • valve With regard to the arrangement of the valve, it has proven to be advantageous if the valve is connected upstream of the ventilation duct. This configuration makes it possible that no potting material can penetrate into the ventilation channel, since the valve already stops the potting material prematurely. Alternatively, however, it is also possible that the valve is connected downstream of the ventilation channel. In this embodiment, too, it can be ensured that the foamable material cannot penetrate outside through the locking housing.
  • valve be integrally connected to the locking housing or that this is integrally formed on the locking housing.
  • Both the locking housing and the valve can be made of plastic and can be manufactured as injection molded parts.
  • the one-piece connection also enables simple production in a few work steps.
  • a film hinge for example, can be used for the connection.
  • the valve is releasably connected to the locking housing, for example via a screw connection.
  • valve has advantages in particular with regard to adaptability to the potting material, since, for example, different foams can also have different viscosities and different curing times and therefore different valve dimensions for different potting materials may be required.
  • the valve it is possible for the valve to be screwed directly into the closure housing, but plug, click, flange or adhesive connections are also possible, for example.
  • the valve it is also possible for the valve to be connected to the closure housing via a line, for example a hose.
  • the valve and housing do not have to be directly adjacent to one another and the valve can also be positioned independently of the housing.
  • a flexible hose for example, can be used for this.
  • the line is advantageously connected to the locking housing in an airtight manner, so that when pouring or foaming, the air can be reliably discharged through the valve into the line and then through the valve housing to the outside.
  • Seals for example, can be used to ensure a suitable seal.
  • valve In a further development of the valve, it has been found to be advantageous if it has a closing element which closes automatically when it is exposed to potting material. This enables reliable closure and sealing of the ventilation duct.
  • the valve does not need to be actively controlled, but can close automatically when the air has been displaced and diverted and then the valve is only subjected to potting material or the potting material is inhibited.
  • Such a purely passive valve is not only inexpensive, but also insofar less prone to errors and does not require any additional control.
  • the design of the closing element it is proposed that the air can flow around the closing element. The air displaced by the casting material can thus flow past the closing element and then flow outside. With this flow around, the force acting on the closing element by the air is comparatively small, so that the closing element does not move and the ventilation channel accordingly remains open.
  • the closing element it has proven to be advantageous if this is arranged to be movable in a valve channel.
  • the closing element can be moved back and forth in the valve channel between a venting position and a blocking position, the closing element allowing a throughflow in the venting position so that air can be forced out of the receiving space of the panel. In the blocking position, the closing element can block a corresponding flow. It is advantageous if the closing element is in the venting position as long as air is applied to the valve. When potting material is then applied to the valve, the closing element can be moved into the blocking position and thus prevent further penetration of potting material. Flow is then no longer possible.
  • the valve channel can have a larger diameter than the ventilation channel, so that the closing element can reliably close the ventilation channel, but cannot penetrate it.
  • the closing element can be moved by the potting material from a venting position into a blocking position. If the closing element is acted upon by air, the force exerted on the closing element by the air is not sufficient to move the closing element from the venting position into the blocking position. It can be provided to the effect that that the closing element is biased into the venting position, for example by means of a spring, or is held in the venting position by means of a holding force.
  • the denser and significantly more viscous potting material cannot easily flow past the closing element, but rather a force acts on the closing element that overcomes the holding force that cannot be overcome by the air, whereby the closing element then moves from the potting material into the blocking position will. In this position, the valve channel or the ventilation channel is then closed, so that no potting material can pass through the locking housing.
  • the closing element it has proven to be advantageous if it is designed as a ball.
  • a ball allows the air to flow around the ball and thus not move it, on the other hand, due to the inflow surface of the ball, the potting material causes it to be brought into the blocking position and the corresponding channel thus closed will sen.
  • Reliable sealing of the tubular ventilation duct can also be achieved by means of a ball.
  • the valve can then be designed as a ball valve.
  • the valve channel is designed to be conical at least in sections.
  • the ball When the sealing element is acted upon by the potting material, the ball can, for example, be pressed into the corresponding cone and thus reliably close the channel.
  • the conical design also ensures a kind of self-centering of the closing element, so that the potting material cannot flow past the closing element on one side or push the closing element to the side.
  • the closing element can be designed to be elastic and clamped into the valve channel in such a compressed manner that the closing element does not move when exposed to air and moves when exposed to potting material. The closing element can thus be moved into the blocking position by the force of the potting material and then close the ventilation channel.
  • this configuration is based on the same principle as has already been described above with regard to the ball. In terms of construction, however, there are differences.
  • valve channel is configured in such a way that air can flow past the clamped closing element.
  • the valve channel can have recesses for this, which act as Heilka channels and which allow a flow around the closing element. The air ducts can accordingly be led past as a closing element.
  • the air ducts can be dimensioned in such a way that, although the air cannot pass them, or the potting material can pass them only with difficulty. It is therefore difficult for the potting material to flow around the closing element, and when potting material is applied, the closing element moves and the ventilation channel is closed.
  • the design of the closing element it has been found to be advantageous if it is designed as a closed-cell sponge. With a closed-pore sponge, a correspondingly self-closing or purely passive valve can be implemented very easily.
  • the closing element can be flowed through by gaseous media and advantageously not or only partially flowed through by the potting material.
  • the closing element is se mipermeable and can allow gases and thus also air to pass, but not or only partially allow more viscous substances, such as the potting material, to pass.
  • the closing element can achieve a separation of air and potting material. In this context, no flow means that the potting material cannot flow through the closing element under technically sensible boundary conditions.
  • the closing element can be compressed by the potting material. Since the potting material cannot flow through the closing element, it collects in front of and partially in the closing element. The closing element is thus compressed due to the pressure of the potting material. The pores of the closing element are compressed by the pressure of the potting material and the resistance of the closing element increases. In this respect, the closing element then becomes even more impermeable, in particular for the potting material. If necessary, the closing element can also move, as has already been described above with regard to the flow-around closing element. The closing element can rest against a shoulder of the valve channel, so that in this respect a fixed position of the closing element is predetermined can be. When potting material is applied, the closing element can be compressed, but it cannot be pressed into or through the ventilation duct, but rather, because of the compression, it rather leads to the ventilation duct being even better sealed by the compression.
  • the size of the closing element can match the size of the valve channel, so that the closing element can to a certain extent seal the valve channel for the potting material.
  • the air cannot flow past the closing element either, but only through the closing element. With this closing element, too, passive venting can thus be ensured in a structurally simple manner.
  • the closing element it has proven to be advantageous if it is designed as an air-permeable sponge, in particular as an open-pored sponge. Such a sponge can be traversed by air and can reliably hold off the potting material.
  • the design of the valve it has also been found to be advantageous if it has an inlet aperture. A certain pre-separation can be carried out by means of such an inlet panel, so that as much air as possible can be passed through the locking housing before the venting channel is closed by the potting material.
  • the ventilation channel has a deflection.
  • the valve can be arranged laterally on the housing, in particular directly on the housing, which ensures a small installation space.
  • the ventilation channel can be tubular.
  • the locking element is designed as a locking element, in particular as a locking hook, or as a locking counterpart, in particular as a hook receptacle.
  • each of the two panels can have a locking device and the locking element of one locking device can be configured as a locking element and the locking element of the other locking device can be configured as a counterpart locking device. Two locking devices or two components can thus be reliably connected to one another via the closure elements.
  • the two panels can be positively connected to each other. when the two panels are to be detached from each other again.
  • the locking hook can be moved from the outside.
  • a corresponding interface can be provided or in the upper side or in the lower side.
  • the locking device has a locking chamber in which the locking element is arranged.
  • the locking chamber can be located inside the locking housing and, for example, a locking element designed as a locking hook can be pivotably mounted in the locking chamber.
  • the ventilation duct ends in the closure chamber or that it ends through the closure chamber is led.
  • the ventilation channel can thus connect the receiving space of the panel to the closure chamber.
  • the locking chamber can be open to the outside. This allows air to pass from the receiving space through the ventilation channel into the closure chamber and then to the outside.
  • the locking chamber can have an opening slot which can also be pivoted in a pivoting movement of a locking element designed as a locking hook. The discharged air can then escape through this opening slot.
  • the lock housing is not completely foamed, but the lock housing is open to the outside via the opening slot.
  • each vent channel can be provided with a valve of the type described above and each vent channel can each lead through the locking housing and end, for example, in the locking chamber. In this respect, air can then be diverted to the outside from different positions, which further reduces the risk of air inclusions. It is also possible to provide more than two Entlskyungskanä le.
  • the ventilation channels are arranged on the opposite sides of the locking housing. In this way, air can also be diverted from two opposite sides of the locking housing. With this configuration, the hold of the locking housing in the foam can be improved on two opposite sides, which overall leads to an increased connection strength.
  • the two ventilation channels can be arranged on opposite sides of the closure chamber.
  • the two housing parts can be detachably connected to one another and, for example, can be plugged into one another, latched to one another or clipped to one another. It is also conceivable that the two housing parts are pivotably connected to one another and that these can be folded onto one another.
  • the locking element can also be easily mounted due to the two-part housing. For this purpose, this is first arranged in one of the two housing parts and then the other housing part is connected to the first housing part, the locking element being fixed between the two housing parts, in particular positively but rotatably.
  • the ventilation channel can have a significantly smaller diameter than the valve channel.
  • the closing element can initially be arranged in a housing part and then the other housing part can then be connected to the first housing part and the closing element can be received in a captive manner in the valve channel between the two housing parts.
  • the locking housing in a further development of the invention, it has proven to be advantageous if it has a plurality of retaining ribs to increase the retaining force of the potting material.
  • the retaining ribs can extend both in the vertical and in the horizontal direction, so that the locking housing is also anchored in the potting material in all directions.
  • the potting material can get into the spaces between the retaining ribs and thus ensure a good hold of the locking housing.
  • the retaining ribs can also help stabilize the locking housing or ensure that the housing wall of the locking housing only needs to have a comparatively thin wall thickness.
  • the locking device has one or more plug connectors for insertion into the panels. Via the connector, the locking device can be positioned opposite the panel before the potting or foaming of the receiving space, so that it can be ensured that the potting material washes around or foams around the locking housing as well as possible. It is advantageous if the locking device has a certain distance to the top and bottom of the panel, so that enough Vergussma material can get into these areas and ensure a good hold of the lock housing.
  • the plug connectors can be cylindrical and these can be arranged next to the locking chamber or next to the opening slot of the locking chamber. In particular, two connectors are provided, one at each end of the opening slot of the locking chamber.
  • a component in particular a panel of a cold room, is also proposed, the component having a locking device for locking the component to a further component, and the locking device being designed in the manner described above.
  • the component it has proven to be advantageous if it has a receiving space for receiving potting material.
  • the potting material which is preferably designed as a foamable material al in the case of a panel, ensure the required insulation effect.
  • the panel can be designed as an insulation panel.
  • the locking device is arranged in the receiving space and encapsulated by the potting material for fastening in the receiving space.
  • the locking device or the locking housing is encased or washed around by the potting material and this is at least partially cured, there is a permanent connection of the locking device to the component and sometimes large forces can be absorbed by the locking device, especially in the case of large components , especially with large panels.
  • the component it is also proposed if it has a frame surrounding the receiving space.
  • the frame can be open at the top and bottom and these open sides can be closed with plattenför shaped tops and bottoms.
  • the top and the bottom can be parallel to one another, so that overall a cuboid geometry results.
  • the receiving space can be designed as a cavity and to this extent be formed by the frame and the top and bottom of the panel.
  • the upper side and / or the lower side can have a pouring or foaming opening through which the potting material can be passed into the receiving space.
  • the upper side and / or the lower side can also have ventilation openings through which the air displaced during the encapsulation can be diverted, at least partially, from the receiving space.
  • the frame and the upper side and the lower side are not removed after the potting material has hardened, but rather these are part of the finished foamed component.
  • the frame as well as the top and the The underside gives the component sufficient stability, especially since the foamable material alone can usually only absorb small forces. It is also possible that the component does not have a fixed frame. In this case, a corresponding mold is used for potting and the frame is removed after curing.
  • connection contour for connecting the component to another component.
  • the connection contour can be arranged on the frame.
  • the two components are then first brought into contact via the respective connection contours and then locked to one another via the locking device. Forces, in particular torques, can be transmitted via the connec tion contours, which in this respect relieves the load on the locking elements of the locking devices.
  • the connecting contours of two components can interact in the manner of a tongue and groove connection.
  • a component can thus have a groove-shaped connection contour on one side and a spring-shaped connection contour on the opposite side. As a result, a large number of components can be connected to one another.
  • the locking chamber of the locking device can be open to the outside and the opening can be arranged in the area of the connecting contour. This enables the locking element of the locking device to interact with the locking element of the locking device of the other component and thus to lock the two components with one another.
  • the opening slot can in this respect be aligned with the connecting contour.
  • a method for fastening a locking device in a component is also proposed.
  • the locking housing is initially used the locking device is arranged in a receiving space of the component.
  • the receiving space is then filled with potting material, in particular an at least partially foamable and partially hardening material, in such a way that the potting material at least partially surrounds the locking housing.
  • the gaseous medium located in the receiving space is displaced by the potting material and diverted through one or more ventilation ducts extending through the locking housing.
  • the potting material can then cure in one step.
  • the pouring of the receiving space and / or the curing of the potting material takes place under a press, which ensures that the top and bottom of the component are plane-parallel.
  • the foamable material could possibly ensure that the top, bottom or even the frame of the component is deformed without a corresponding press and therefore no longer has a firmly defined geometry. After the material has hardened, the press can then be removed again.
  • Fig. 2 is a schematic side view of two panels in the connection United;
  • 3a, b show a sectional view and a perspective side view of a locking device according to a firstppsbei game
  • FIG. 4a, b show a sectional view and a perspective side view of a locking device according to a second domesticsbei game
  • Fig. 5a, b a sectional view and a perspective side view of a locking device according to a third gametrusbei.
  • Fig. 5c is a perspective sectional view with a locking element designed as a receiving hook.
  • FIG. 1a and 1b show a component which is designed as a panel 10 of a cold room and which has a locking device 1 for locking the panel 10 shown to another component, not shown and also configured as a panel 10.
  • the panels 10 are attached to one another and then locked to one another via the locking device 1, which will be described in more detail below, so that the panels 10 are then firmly connected to one another.
  • the locking device 1 also serves as a tensioning device in this case. With this procedure several Connect panels 10 to one another and produce cold rooms of any size.
  • each of the panels 10 has one or more locking devices 1, each of which has a locking element 3, either in the form of a rotatable locking hook or in the form of a hook holder.
  • the corresponding locking elements 3 are arranged in such a way that a locking element 3 designed as a locking hook always engages in a locking element 3 designed as a hook receptacle of another panel 10 and thus the panels 10 can be locked to one another.
  • FIG. 2 two corresponding panels 10 are shown.
  • the right panel 10 has a locking element 3 designed as a locking hook and can engage in the locking element 3 of the other panel 10 designed as a hook receptacle.
  • a locking element 3 designed as a hook receptacle can also be seen in FIG. 5c.
  • the two panels 10 each have a connection contour 10.1 which fit into one another in the manner of a tongue and groove connection.
  • the panels 10 are used for a cooling room, it is necessary that they have good insulation properties.
  • the panels 10 consist to a large extent of a potting mate rial, which is designed as a foamable material, namely polyurethane foam. This material is characterized by poor thermal conductivity and therefore good insulation properties.
  • the panel 10 has a receiving frame 13 which gives the panel 10 stability and which contains a cavity in the form of a receiving space 11 for the polyurethane foam.
  • the parallel upper and lower sides of the panel 2 are connected to the circumferential frame 13, so that the panel 10 initially has the shape of a hollow one Cuboid.
  • the expanding polyurethane foam which is spreading in the receiving space 11, can then be injected through an opening in the upper side of the panel 10.
  • the air in the receiving space 11 is gradually displaced from the receiving space 11 when foaming until the entire receiving space 11 is filled with foam.
  • the foam then has to harden, which in practice mostly happens in a press that ensures that the top and bottom of the panel 10 remain plane-parallel to one another and do not dent.
  • the locking device 1 is at a certain distance from both the top and the bottom of the panel 10. This distance ensures that the locking device 1 is also foamed when the receiving space 11 is filled with foam and then, after the foam has hardened, is firmly connected to the panel 10 and cannot be removed from it again. Due to the geometry of the locking device 1, in particular the locking housing 7, which comes into contact with the foam, air inclusions can easily occur in the area around the locking housing 7, which have a negative impact on the insulation as well as the strength of the connection of Effect locking device 1 and panels 10.
  • the locking housing 7 has two ventilation channels 4 through which air displaced by the foam can be discharged to the outside.
  • the ventilation channels can be used to Existing ventilation openings can be dispensed with. The more precise configuration and mode of operation of the vent is described in more detail below with reference to the further FIGS. 3a, b, 4a, b and 5a, b with reference to three different configurations.
  • the locking element 1 is shown in a sectional view and in FIG. 3 b in a perspective side view, in each case without the panel 10.
  • the locking housing 7 has a cavity in the form of a locking chamber 2 in which the locking element 3 designed as a locking hook is rotatably mounted so that it can correspondingly engage in a locking element 3 designed as a hook receptacle of another locking device 1 of another panel 10, as already described above.
  • the two lateral ventilation channels 4 can be seen, which end in this locking chamber 2 and via which air can be conducted from the outside of the locking housing 7 and thus from the receiving space 11 through the locking housing 7 into the locking chamber 2 and then outside .
  • the two venting channels 4 are arranged on opposite sides of the locking housing 7 or the locking chamber 2, so that air can be diverted accordingly from both sides and the locking device 1 can be appropriately covered with foam.
  • valve 5 which is connected in one piece to the locking housing 7, is connected upstream of the ventilation ducts 4.
  • This valve 5 has the task of letting air pass and closing automatically when no more air is available or can be discharged.
  • the corresponding valve 5 ensures that the foam cannot enter the ventilation channel 4 and the locking chamber 2, since otherwise the pivotable locking hook could stick.
  • the valves 5 are configured in such a way that they close automatically when they are exposed to foam or foamable material.
  • the locking housing 7 is designed in two parts and is composed of a first housing part 7.1 and a second housing part 7.2. This two-part design ensures, for example, that the locking hook can be fitted very easily. Because this can first be arranged in the first housing part 7.1 and in a second step the second housing part 7.2 can then be connected to the first housing part 7.1 and thereby secure the locking hook between the two housing parts 7.1, 7.2 or in the resulting locking chamber 2.
  • the locking housing 7 has several retaining ribs 9 on its outside which run both in the horizontal and in the vertical direction and therefore give the closure housing 7 a good hold in the foam. In addition to the better strength of the connection These retaining ribs 9 also allow the locking housing 7 to become more stable per se or the wall thickness of the locking housing 7 to be thinner than if no corresponding retaining ribs 9 were present.
  • the locking housing 7 must be positioned as centrally as possible between the top and bottom of the panel 1 prior to the foaming of the receiving space 11, so that good foaming of the locking housing 7 can be ensured.
  • it has two connectors 8, which can be seen in FIG. 3b and which are arranged to the side of the opening slot 2.1.
  • the frame 12 of the panels 10 has a correspondingly configured receptacle on the connecting contour 10.1 so that the locking housing 7 is held in the receiving space 11 of the panel 10 via the plug connector 8 in the position shown in FIGS. 1a and 1b.
  • the locking housing 7 and the plug connector 8 are designed in such a way that the locking housing 7 cannot be pushed through the corresponding opening in the frame 13 to the outside.
  • valves 5 differ fundamentally only with regard to the design of the valves 5, so that with regard to the rest of the design of the locking device 1, reference is made to the above description.
  • the valves 5 of the various exemplary embodiments have in common that the valves 5 each have a closing element 5.2, which ensures that although air can pass through the valve 5, foam is retained.
  • the valve 5 is designed as a ball valve and has a closing element 5.2 in the form of a ball 5.21, which is movably arranged in a valve channel 5.1.
  • valve 5 When the valve 5 is pressurized with air, the air can flow past the ball 5.21 into the ventilation channel 4 and from there to the outside. The ball 5.21 is then in the vent position E, as can be seen in the lin ken valve 5 of Fig. 3a. If foam is applied to valve 5, however, ball 5.21 is automatically moved into blocking position B by the foam. This position can be seen in FIG. 3a for the right valve 5.
  • the foam Since the foam is significantly denser and significantly more viscous than the air, the foam does not succeed in flowing past the ball 5.21 into the ventilation duct 4, but rather the force exerted by the foam on the ball 5.21 ensures that that the foam pushes the ball 5.21 in front of it until it reaches the blocking position B and the ventilation duct 4 has closed. This closure of the ventilation channel 4 then prevents the foam from penetrating into the closure chamber 2.
  • This blocking position B can be seen in the right valve 5 in FIG. 3a.
  • valve channel 5.1 is designed in the manner of a double cone.
  • this configuration means that the ball 5.21 cannot fall out of the valve channel 5.1, since the valve inlet is smaller than the diameter of the ball 5.21; on the other hand, the conical configuration ensures a certain self-centering of the ball 5.21, so that it is reliably pressed by the foam onto the entrance of the ventilation channel 4 and closes this ver.
  • the valve 5 shown in FIGS. 4a and 4b basically functions very similarly to the ball valve described above.
  • the closing element 5.2 is not designed as a ball 5.21, but rather as a closed-pore sponge 5.22 with a cylindrical geometry.
  • the sponge 5.22 is compressible and slightly larger in the uncompressed state than the corresponding valve channel 5.1.
  • the sponge 5.22 is thus wedged in the valve channel 5.1 and cannot be moved by incoming air. Rather, the valve channel 5.1 in this embodiment has elongated recesses which function as air channels and in this respect allow incoming air to flow around the sponge 5.22.
  • This embodiment also ensures that air can pass the valve 5 unhindered, but the valve 5 does not allow foam to pass and automatically closes the ventilation duct 4 when it is exposed to foam.
  • the configuration shown in FIGS. 5a and 5b differs from the configurations described above essentially in that the air does not flow around the closing element 5.2, but that the air flows through the closing element 5.2.
  • the closing element 5.2 is in this embodiment as an open-pored sponge 5.23 tet, which is air-permeable, but due to the pore size of the closing element 5.2 and the viscosity of the foam, this can not or only partially flow through.
  • FIG. 5c shows a perspective sectional view of a locking device 1 in which the closing element 5.2 of the valve 5 is designed as a sponge 5.23 according to the configuration already described with regard to FIGS. 5a and 5b.
  • the locking element 3 is designed as a hook holder.
  • the locking element can likewise be configured as a hook receptacle.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne un dispositif de verrouillage (1) pour le verrouillage de deux composants, en particulier de deux panneaux (10) d'un espace de refroidissement, comprenant un boîtier de verrouillage (7) pouvant être surmoulé, en particulier enrobé par moussage, dans lequel est disposé un élément de verrouillage, au moins un conduit de ventilation (4) guidé à travers le boîtier de verrouillage (7) étant prévu pour évacuer des milieux gazeux. L'invention concerne en outre un composant pourvu d'un dispositif de verrouillage (1) ainsi qu'un procédé de fixation d'un dispositif de verrouillage (1) dans un composant.
EP21733744.3A 2020-06-18 2021-06-10 Dispositif de verrouillage avec un canal de ventilation Active EP3953534B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020116127.1A DE102020116127A1 (de) 2020-06-18 2020-06-18 Verriegelungsvorrichtung mit Entlüftungskanal
PCT/EP2021/065654 WO2021254878A1 (fr) 2020-06-18 2021-06-10 Dispositif de verrouillage avec un canal de ventilation

Publications (2)

Publication Number Publication Date
EP3953534A1 true EP3953534A1 (fr) 2022-02-16
EP3953534B1 EP3953534B1 (fr) 2023-01-11

Family

ID=76532180

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21733744.3A Active EP3953534B1 (fr) 2020-06-18 2021-06-10 Dispositif de verrouillage avec un canal de ventilation

Country Status (4)

Country Link
EP (1) EP3953534B1 (fr)
DE (1) DE102020116127A1 (fr)
ES (1) ES2940457T3 (fr)
WO (1) WO2021254878A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329814C1 (de) * 1983-08-18 1984-10-11 Steinbach & Vollmann Gmbh & Co, 5628 Heiligenhaus Kupplungselement fuer Verbundbauteile
JP3048842B2 (ja) * 1994-05-30 2000-06-05 三洋電機株式会社 断熱パネル用フック装置
DE102004042864A1 (de) 2004-09-04 2006-03-09 Rahrbach Gmbh Verspannbares Bauelement für einen Kühlraum
DE202007007321U1 (de) 2007-05-23 2007-07-26 BSH Bosch und Siemens Hausgeräte GmbH Haushaltsgerät
DE102011109164A1 (de) 2011-08-03 2013-02-07 Axel R. Hidde Luft- und Schmutzabscheider mit Elastomermembran-Entlüfter
DE202014006323U1 (de) 2014-08-11 2014-09-05 Wilhelm Schauerte Gmbh & Co. Kg Anschlußstück mit Elastomermembran-Entlüfter 2

Also Published As

Publication number Publication date
ES2940457T3 (es) 2023-05-08
WO2021254878A1 (fr) 2021-12-23
DE102020116127A1 (de) 2021-12-23
EP3953534B1 (fr) 2023-01-11

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