EP2428743A1 - Connection cabinet for a canal system of an ambient air or air conditioning facility - Google Patents

Abstract

The connection cabinet has a housing formed by a collapsible spatial volume which is loaded for reducing the volume of the housing. A flap is provided in the area of an inlet. The flap is mounted around a shaft or axle arranged centrally to an opening. The shaft or axle is pivotable into the inlet between an open position and a closed position. The connection cabinet is made of flexible fabric or plastic.

Description

The invention relates to a connection box for an air line of a ventilation or air-conditioning system, with a one, in particular from several housing wall areas existing, housing housing comprising at least one inlet and at least one outlet.

Such junction boxes are usually used to connect air passages, z. B. floor passages, wall passages or ceiling openings. The supply air supplied by the ventilation or air-conditioning system flows through the connection box and the air passage on the room side into the room to be ventilated.

Preceded in the flow direction is the terminal box regularly a throttle valve, which is designed as a separate component and - as the terminal box - must be installed in the air conditioning system. The installation is time consuming and due to the sometimes very limited on-site space available only conditionally possible.

The object of the invention is to avoid the aforementioned disadvantages and to provide a terminal box, which allows easier installation.

This object is achieved in that the housing of the junction box to reduce the space occupied by the housing volume, especially for transport, collapsible, collapsible, collapsible and / or collapsible and that in the region of the inlet a flap is provided, which about a, in particular centrally disposed to the opening, shaft or axis between an open position and a closed position is pivotally mounted in the inlet and extends in its closed position at least over a substantial part of the flow cross section of the inlet, in particular completely closes the flow cross section of the inlet. In the embodiment according to the invention, the flap is in a plane with the housing wall.

Thus, the flap is integrated in the terminal box. The flap can already be fitted at the factory. Then the unit is transported to the construction site and must be connected on site only as a unit to the on-site ventilation system. As a result, the installation effort is significantly reduced. By integrating the flap in the connection box, the required on-site space requirement is also reduced.

In addition, the terminal box in the folded, folded, collapsed or folded state has small dimensions. Only locally receives the terminal box by unfolding, unfolding, pushing apart and / or unfolding his actual "operating form", preferably the Terminal box is fixed by appropriate measures in this form of operation, so that the terminal box keeps its shape even when no currents of a medium through the terminal box.

Advantageously, the unfolding, the unfolding, the pushing apart and / or the unfolding without technical aids is possible. In this case, the outflow area of the outlet usually takes up a significant proportion of the corresponding area of the housing wall area, which contains the outlet.

The housing wall portions of the junction box may be formed as portions of a continuous surface so as to merge therewith. In this case, the terminal box may for example have the shape of a ball, wherein the inlet and outlet can be arranged at arbitrary locations of the spherical surface. Of course, it is also possible that the terminal box, in particular in an angular configuration, consists of several housing wall portions which abut each other to form edges.

Preferably, the entire housing, except for the inlet and the outlet, impermeable to air. This prevents supply air leaking sideways out of the connection box or, as a result of induction, air is drawn laterally into the connection box.

In a preferred embodiment, for ease of collapsibility and / or collapsibility of a housing wall area, this housing wall area can consist of a flexible, air-impermeable material. Under a flexible material is such a material, such as As textiles, films or the like understood. These materials can also - if this should be necessary - be elastic. It is of course possible that only one housing wall area consists of the flexible, air-impermeable material. But it can also consist of several or all housing wall portions of the flexible, air-impermeable material.

If all housing wall areas are made of an air-impermeable material, terminal boxes of any configuration can thus be produced, which can thus be optimally adapted to the local structural conditions.

For folding, which usually produces a regular wrinkle pattern, fold lines may be provided in each respective housing wall region along which the material is folded. Of course, but also a merging is possible. Here, the material is more or less "randomly" merged.

At least one housing wall area, preferably the housing wall area containing the inlet and / or the outlet, can be rigid, in particular plate-shaped. A possible embodiment is z. B designed as a sheet housing wall area in which, for example, the inlet is provided.

At least two adjacent along an edge housing wall portions may be rigid, in particular plate-shaped, formed and hinged together, in particular, each of the two housing wall portions interconnecting housing wall area made of a flexible, air-impermeable material. In such an embodiment, the terminal box is designed in the manner of a "bellows". The two rigid housing wall portions can be folded against each other due to the articulated connection. In such an embodiment, the one or more other housing wall portions that connect the two rigid housing wall portions together are preferably made of the flexible, air impermeable material.

Preferably, the flexible, air-impermeable material is assigned at least one support element holding the flexible, air-impermeable material in a predetermined shape. The support element may be provided in the material itself, for example in the form of a supporting fabric. Also, the support member may be provided both outside and inside in the terminal box. It may also be a separate support element, which must be secured accordingly.

At least two in their relative orientation and / or in their distance from one another variable housing wall portions may be fixed by means of a pawl, a support rod or the like in the operating position against each other.

The flexible, air-impermeable material may consist of a fabric, a plastic or the like. Other embodiments are of course possible.

The housing may have on the inside a lining made of a sound-absorbing material.

In the outlet, a releasable air passage may be provided. But it is also quite possible that the air passage is provided firmly in the outlet.

The flap can have a multiplicity of, in particular round, passage openings.

In this case, the passage openings can be arranged distributed uniformly over at least a portion of the surface of the flap.

In order to keep the pressure loss in the passage opening as small as possible and to avoid unwanted noise, it is advisable if at least one of the two circumferential edge regions of the edge of at least one passage opening is rounded and / or at least one of the two peripheral edge regions of the outer edge of the Flap rounded is formed.

In this case, the flap can be arranged in an opening having an installation frame, and the flap and the mounting frame form a mounting unit and the mounting frame and the flap are each made of plastic. In such an embodiment, the flap and the mounting frame is in a plane with the housing. Such a mounting unit consisting of flap and mounting frame is easy to produce, since it is made of plastic. The flap and the opening may be formed arbitrarily with respect to the cross-sectional area. The flap and thus the opening may be formed, for example, round or square.

Since the flap and the mounting frame form a mounting unit, which is made of plastic, the mounting unit easily mounted in the factory and also - even on site - easily installed. If the flap and the shaft form a unit, the mounting unit is formed in two parts. One part forms the flap with the shaft, while the mounting frame is the second part.

The shaft and the flap may be integrally formed, for example made of plastic. But it is also quite possible that two stub shafts are inserted into corresponding receptacles of the flap, wherein the stub shafts are arranged rotationally fixed relative to the flap.

If the flap is connected by an axis with the mounting frame, it makes sense if a device for fixing the flap position is provided.

The mounting frame may have a partial opening, in particular the opening completely surrounding and neck-like collar. Through the collar, the air flow flowing through the opening is directed and supported in the region of the opening.

It is advisable if the collar has a recess receiving the shaft or the axis, at least in the area of one end of the shaft or of the axle. Thus, the recess, for example, tapering towards its bottom, for example, be formed in the manner of a v, wherein the recess has a projection at least in the region of an edge, which prevents unintentional release from the recess in the locked state of the shaft or the axis.

At least one recess and cooperating with this recess end of the shaft can be formed be that an anti-rotation in the form of an adhesion-improving surface, such as a coating, or a structure, such as a corrugation, is provided, so that thus a self-locking adjustment is possible. The coating may be, for example, rubber. Due to the self-locking adjustment, the flap can easily be moved to the desired position during assembly.

In the area of at least one end of the shaft, an adjusting element can be provided for adjusting the flap position. The flap is preferably installed on site so that the adjusting element is accessible from the room, so that thus the flap position can be changed at any time.

The mounting frame may have at least one articulated, in particular via a film hinge, mounted mounting portion in a portion of its outer edge. By means of the mounting portions of the mounting frame is hinged to the frame. For folding the mounting frame, adjacent to the edges of the other of a flexible, air-impermeable material existing housing wall areas, together with the arranged in the mounting frame flap in the enclosed by the frame cavity into it.

At least two distributed pairs of clamping receptacles can be provided around the opening for receiving an edge region of an air distribution element, for example designed as a funnel.

In a preferred embodiment of the invention, the mounting frame extends substantially in one Level. Such a configuration is particularly suitable for use in terminal boxes, in which the housing wall area, in which the flap is to be used, is flat.

Fig. 1

einen erfindungsgemäßen Anschlusskasten im zusammengefalteten Zustand ohne Einlassstutzen,

Fig. 2

den Gegenstand nach Fig. 1 mit Einlassstutzen,

Fig. 3

den Gegenstand nach Fig. 2 im bereits aufgeklappten Zustand,

Fig. 4

den Gegenstand nach Fig. 3 im durch ein Stützelement fixierten Zustand (Betriebsposition),

Fig. 5

eine schräge Seitenansicht auf eine Montageeinheit bestehend aus einer in einem Einbaurahmen eingesetzten Klappe,

Fig. 6

das Detail "X" aus Fig. 5,

Fig. 7

das Detail "Y" aus Fig. 5,

Fig. 8

eine Rückansicht auf eine Klemmleiste und

Fig. 9

einen Schnitt durch den Gegenstand nach Fig. 8.

Embodiments of the invention illustrated in the drawings are explained below. Show it:

Fig. 1

a terminal box according to the invention in the folded state without inlet nozzle,

Fig. 2

the object after Fig. 1 with inlet socket,

Fig. 3

the object after Fig. 2 in the already unfolded state,

Fig. 4

the object after Fig. 3 in the state fixed by a support member (operating position),

Fig. 5

an oblique side view of an assembly unit consisting of a flap inserted in a mounting frame,

Fig. 6

the detail "X" off Fig. 5 .

Fig. 7

the detail "Y" off Fig. 5 .

Fig. 8

a rear view on a terminal block and

Fig. 9

a section through the object after Fig. 8 ,

In all figures the same reference numerals are used for identical or similar components.

In the Fig. 1 to 4 a junction box for a duct system of a ventilation or air conditioning system is shown. The connection box consists, inter alia, of a casing 1 comprising a housing wall, which has an inlet 2 in which a flap 3 is provided, and an outlet 4. Depending on the exemplary embodiment, the housing wall can have one or more housing wall regions 5.

By means of the inlet 2 of the terminal box is connected to a channel system, not shown, a ventilation or air conditioning system. The junction box has a peripheral frame 6 made of sheet metal with fastening tabs 7. The frame 6 forms the lower side of the outlet 4. In the region of the outlet 4, which faces the space to be ventilated, an air passage is mounted. For mounting a crossbeam 8 is provided with a central bore 9 into which a corresponding screw can be screwed. In the illustrated embodiment, the outlet 4 is square.

The in the Fig. 1 to 4 illustrated connection box is foldable. The inlet 2 is formed by an opening of a mounting frame 10, so that the housing wall area 5 is rigidly formed in the region of the inlet 2 due to the mounting frame 10 and hinged, as will be described later, is connected to the frame 6. The other housing wall regions 5 connecting the housing wall region 5, which is rigid at least in the region of the inlet 2, are made of a flexible, air-impermeable material, such as a fabric film. In the assembled state, ie in the in Fig. 4 illustrated operating form, has the terminal box in the side view of an approximately triangular shape.

In the FIGS. 5 to 7 is designed as a throttle flap 3 shown in detail. The flap 3 is arranged in the mounting frame 10 having an opening, wherein in the illustrated embodiment, the mounting frame 10 extends in a plane.

The flap 3 and the mounting frame 10 form an assembly unit. The flap 3 is pivotally mounted about a centrally disposed to the opening shaft 11 in the opening. The shaft 11 is against rotation of the flap 3. The mounting frame 10 and the flap 3 are made of plastic. The housing wall region 5 of the junction box is flat, at least in the mounting region of the inlet 2, where the mounting frame 10 is mounted with the flap 3. For attachment 10 holes 12 are provided in the mounting frame. These bores 12 can also serve for fastening an inlet nozzle 13 by means of screws 14.

Like that FIGS. 5 to 7 can be seen, the flap 3 has a plurality of round passage openings 15 which are arranged distributed uniformly over portions of the surface of the flap 3.

The mounting frame 10 has an opening completely surrounded and neck-like collar 16. For mounting of the shaft 11, which is formed on the flap 3, the collar 16 in its opposite areas in each case one the shaft 11 latching receiving recess 17. Each latching recess 17 prevents the shaft 11 can unintentionally release from the recess 17.

At the in Fig. 5 shown lower end of the shaft 11 is designed as a lever adjusting element 18 is provided to adjust the position of the flap 3 can. The adjusting element 18 is preferably arranged so that it is accessible from the outlet 4. In order to prevent an unwanted change in the flap position, the lower recess 17 and cooperating with the recess 17 end of the shaft 11 is formed so that an anti-rotation in the form of a structure is provided. In the illustrated embodiment, the lower end of the shaft 11 is not round, but has a structure in the form of over the circumference of the shaft 11 at an angle to each other distributed part surfaces 19. The corresponding recess 17 is formed accordingly.

As FIG. 5 can be seen, are provided around the opening around four in a 90 ° angle to each other arranged pairs of clamping receptacles 20 for receiving an edge region of a funnel-like air distribution element not shown formed.

Each clamping receptacle 20 consists of two mutually parallel sections 21, 22, which form between them a clamping gap, in which the peripheral edge of the air distribution element is fixed. Like for example FIG. 5 can be seen, the opening facing portion 2 of each terminal receiving 20 is formed by the collar 16 itself in the illustrated embodiment.

As FIG. 5 can be seen, the mounting frame 10 at its outer edge on two mounting portions 23, which are connected via a respective film hinge hinged to the mounting frame 10. These mounting portions 23 are for assembly the mounting frame 10 on the frame 6 of the foldable junction box.

Like for example FIG. 1 it can be seen, the flap 3 is mounted in the inlet 2 of the junction box. The mounting portions 23 of the mounting frame 10 are fastened to the peripheral frame 6 with screws, not shown.

For air distribution of the air flowing in the direction of the arrow 24, an air distribution element may be provided on the side facing away from the air flow side of the mounting frame 10, which may be funnel-shaped or cone-shaped and may consist of an air-permeable fabric such as a non-woven fabric. In the region of the open end, the air distribution element may have a circumferential ring which is inserted into the four clamping receptacles 20.

Fig. 1 shows the terminal box according to the invention in the folded state without inlet nozzle 13. The height of the folded junction box therefore corresponds approximately to the height of the frame 6. As Fig. 1 can be seen, preferably the inlet nozzle 13 is first fixed with the screws 14 on the mounting frame 10. After fixing the inlet nozzle 13, the in Fig. 2 illustrated situation.

Then, the housing wall portion 5, as in Fig. 3 shown with the inlet 2 swung in the direction of arrow 25. Once the housing wall portion 5 with the flap 3 its in FIG. 4 has reached operating position, the housing wall portion 5 is fixed with a support member 26 in the form of a bracket. The two strap ends are rotatably attached to the frame 6, while the bracket engages with a parallel to the rotation axis aligned bracket area in two corresponding locking receptacles 27 of the mounting frame 10.

In the 8 and 9 is a terminal block 28, which is made for example of plastic, shown in the rear view and in section, which serves to fix the housing wall portions 5 on the frame 6. Like for example Fig. 9 can be seen, the terminal block 28 for lateral Aufklippsen on the frame 6 locking lugs 29. Each locking lug 29 engages behind the edge of an opening in the frame 6 in the locked state. In the clipped-in state, the housing wall region 5 is clamped between the outside of the frame 6 and the clamping strip 28. So that each latching lug 29 of the clamping strip 28 can be inserted into its corresponding opening in the frame 6, the housing wall region 5 in the corresponding area has a recess aligned with the opening, through which the latching lug 29 is passed. When inserting the front portion of a latch 29 in its corresponding opening in the frame 6, the front portion of the latch 29 is displaced in contact with the edge of the opening in the direction of arrows 30. After passing through the opening, the front region of each locking lug 29 spreads against the arrows 30 again, so that the edge of the respective opening in the frame 6 is engaged behind.

Further, the upper edge has an angled to the side of the locking lugs 29 area 31 which presses in the aufgeklippsten state of the terminal block 28 the respective housing wall region 5 on the upper edge of the frame 6 and thus serves as a sealing strip.

On the outside of the terminal block 30, two circumferential stiffening ribs 31 are provided. For an additional sealing, two sealing edges 33, which are arranged at a distance from one another and are provided along the two longitudinal edges, are provided on the side in contact with the housing wall region 5, namely the rear side. In addition, around each locking lug 29 around a circumferential edge-like seal 34 is provided to prevent leakage of air in the region of the locking lug 29.

In order to allow the top view of the structural design of the interior of the junction box, are in the Fig. 1 to 4 the Gehäusewandungsbereiche 5 formed of a transparent film. Of course, an opaque material is conceivable, so that then the structural design inside is no longer recognizable from the outside.

Instead of the shaft 11 may of course also be provided an axis, in which case a separate means for fixing the flap position is required.

Of course, the junction box according to the invention can also be used for the extraction of air in the exhaust air operation. In this case, the air to be sucked is sucked in via the outlet 4 and passes through the inlet 2 into the connected air line. In this case no air distribution element is required.

Claims (20)

Connection box for an air duct of a ventilation or air conditioning system, comprising a housing (1) comprising a housing wall (1) comprising in particular a plurality of housing wall regions (5), which has at least one inlet (2) and at least one outlet (4), characterized in that the housing (1) of the junction box for reducing the volume of space occupied by the housing (1), in particular for transport, collapsible, collapsible, collapsible and / or collapsible and that in the region of the inlet (2) a flap (3 ), which is mounted in the inlet (2) so as to be pivotable about an axis (11) or axis arranged centrally relative to the opening between an open position and a closed position and in its closed position at least over a substantial part of the flow cross-section of the inlet (2) extends, in particular the flow cross-section of the inlet (2) vollstä permanently closes. Connection box according to the preceding claim, characterized in that the connection box for easy collapsibility and / or collapsibility of a housing wall region (5) of this housing wall region (5) consists of a flexible, air-impermeable material. Connection box according to one of the preceding claims, characterized in that at least one housing wall region (5), preferably the housing wall region (5) containing the inlet (2) and / or the outlet (4), is rigid, in particular plate-shaped. Connection box according to one of the preceding claims, characterized in that at least two housing wall regions (5) adjoining one another edge are rigid, in particular plate-shaped, formed and articulated, in particular each housing wall region (5) connecting the two housing wall regions (5) to one another flexible, air-impermeable material. Connection box according to one of the preceding claims, characterized in that the flexible, air-impermeable material is associated with at least one supporting element (26) holding the flexible, air-impermeable material in a predetermined shape. Connection box according to one of the preceding claims, characterized in that at least two mutually in their relative orientation and / or in their distance variable housing wall portions (5) by means of a pawl, a support rod or the like in the operating position are mutually fixable. Connection box according to one of the preceding claims, characterized in that the flexible, air-impermeable material consists of a fabric, of a plastic or the like. Connection box according to one of the preceding claims, characterized in that a detachable air passage is provided in the outlet (4). Connection box according to one of the preceding claims, characterized in that the flap (3) has a plurality of, in particular round, through openings (15). Connection box according to the preceding claim, characterized in that the passage openings (15) are distributed uniformly over at least a portion of the surface of the flap (3). Connection box according to one of claims 9 or 10, characterized in that at least one of the two peripheral edge regions of the edge of at least one passage opening (15) is rounded. Connection box according to one of the preceding claims, characterized in that at least one of the two circumferential edge regions of the outer edge of the flap (3) is rounded. Connection box according to one of the preceding claims, characterized in that the flap (3) is arranged in an installation frame (10) having an opening, that the flap (3) and the installation frame (10) form an assembly unit and that the installation frame (10) and the flap (3) are each made of plastic. Connection box according to the preceding claim, characterized in that the installation frame (10) partially encloses the opening, in particular the opening completely, having surrounding and neck-like collar (16). Connection box according to the preceding claim, characterized in that the collar (16) at least in the region of one end of the shaft (11) or the axis of the shaft (11) or the axis latching receiving recess (17). Connection box according to the preceding claim, characterized in that at least one recess (17) and the end of the shaft (11) cooperating with this recess (17) are formed such that an anti-twist device in the form of an adhesion-improving surface, such as a coating, or a structure, such as a ribbing, is provided. Connection box according to one of claims 13 to 16, characterized in that in the region of at least one end of the shaft (11) an adjusting element (18) is provided for adjusting the flap position. Connection box according to one of claims 13 to 17, characterized in that the mounting frame (10) in a partial region of its outer edge at least one articulated, in particular via a film hinge, mounted mounting portion (23). Connection box according to one of claims 13 to 18, characterized in that around the opening at least two distributed arranged pairs of clamping receptacles (20) are provided for receiving an edge region of a funnel-like air distribution element. Connection box according to one of claims 13 to 19, characterized in that the mounting frame (10) extends substantially in one plane.

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