Airflow distribution box

Abstract

Air flow distribution housing (1), comprising: - a body (2) made of expanded polypropylene, the body (2) comprising: ○ a cavity (6) comprising an air flow inlet (10) and two air flow outlets (11) in fluid communication with the air flow inlet (11); ○ a receiving interface (14) for a tapping support (20) at one of the outlets (11); - a tapping support (20) removably mounted on the receiving interface (15) of the body (2), the support (20) comprising: ○ a frame (21) made of expanded polypropylene and defining an outlet orifice (22) for the air flow outlet to connect the cavity (6) with an air duct (61); ○ a flow control device (23) arranged across the outlet orifice (22) to control the air flow passing through the outlet (11). Figure for abstract: Fig. 1

Description

Title of the invention: Air flow distribution box Technical field

[0001] The present invention relates to the technical field of building, in particular the ventilation of a building. In particular, the invention relates to an air flow distribution box for a system for supplying or extracting air from a plurality of zones of a building comprising a tapping support as well as such a tapping support. Prior art

[0002] To distribute an incoming air flow into different areas of a building, it is known to use an air flow distribution box.

[0003] This housing generally comprises a hollow body forming a cavity connected to an air inlet, coming from an air source, for example a heat pump, and outlets on which tappings are mounted. Each building zone is connected to the housing via a conduit mounted on the tapping.

[0004] In order to avoid condensation and to limit heat exchange towards the outside of the box, thermal insulation is generally necessary. The latter complicates the structure of the distribution boxes.

[0005] In addition, the housings are generally composed of a complex assembly of parts, particularly at the outlets where motorized shutters are used. These assemblies complicate the installation and possible maintenance of the housings. Presentation of the invention

[0006] There is a need for an airflow distribution box with a simple structure while having good thermal insulation. Summary of the invention

[0007] The present invention meets this need thanks to, according to one of its aspects, an air flow distribution box for a system for supplying or extracting air from a plurality of zones of a building, comprising:

[0008] - a main body at least partially made of expanded polypropylene, the main body comprising:

[0009] O a cavity comprising at least one air flow inlet, intended to be connected to an air supply source, and at least two air flow outlets in fluid communication with the air flow inlet;

[0010] O at least one interface for receiving a tapping support at one of said at least two outputs;

[0011] - at least one tapping support removably mounted on said at least one a reception interface of the main body, said at least one tapping support comprising:

[0012] O at least one frame made of expanded polypropylene and defining an outlet orifice of the air flow outlet to communicate the cavity with an air duct;

[0013] O at least one flow control device disposed across the outlet orifice for regulating the flow of air passing through the air flow outlet.

[0014] Having a main body at least partially made of expanded polypropylene, by the properties of the latter, allows both to have good thermal insulation of the cavity and a good mechanical structure, in terms of resistance to stresses and shocks.

[0015] The main body may be at least partially made of expanded polypropylene at the level of said at least one receiving interface.

[0016] Preferably, the main body is made entirely of expanded polypropylene.

[0017] Said at least one receiving interface may comprise at least one body relief, the frame of the tapping support comprising at least one support relief, said at least one body relief and said at least one support relief being configured to cooperate when the support is mounted on said at least one fixing receiving interface to hold the tapping support on said at least one receiving interface.

[0018] At least one body relief may extend over a wall of the main body and may partially surround the outlet at said at least one receiving interface. Such a body relief partially surrounding the outlet may facilitate the assembly and disassembly of the tapping support which may be done without tools.

[0019] The cooperation between said at least one body relief and said at least one support relief can be done by force by elastic deformation of said at least one body relief and / or said at least one support relief. This allows for simple assembly and disassembly, without using any special tools.

[0020] Said at least one body relief may be hollow.

[0021] Said at least one support relief may be protruding.

[0022] Alternatively, said at least one body relief is protruding and said at least one support relief is hollow.

[0023] At least one of the main body and said at least one tapping support may comprise a sealing relief on an outer surface at least partially surrounding the outlet at said at least one receiving interface, the sealing relief being configured to prevent the passage of an air flow therethrough. of said airflow outlet other than through the outlet orifice of the tapping support.

[0024] The air flow inlet may form a substantially parallelepiped opening.

[0025] Said at least two outlets can each form a substantially circular opening.

[0026] The body may include side walls, a bottom wall, and a lid wall configured to form the cavity.

[0027] At least one of the side walls may define a wall plane, the tapping support being configured to be mounted and dismounted from the main body by translation in a plane parallel to the wall plane. Thus, the mounting and dismounting is simple to carry out by an operator, in particular in degraded conditions such as under an attic or in a false ceiling that is not very bright and spacious. In particular, the mounting and dismounting of the tapping support can be carried out manually, without tools.

[0028] At least one side wall may comprise a recess extending from an edge of the side wall and forming an opening on a portion of the bottom wall or the cover wall, said at least one receiving interface being at least partially formed by the recess, the tapping support being configured to be mounted and dismounted from the main body by translation in the recess and through the opening on the wall portion. Such a recess makes it possible to form a visual and tactile marker of the receiving interface. It also makes it possible to limit the size of the housing when a tapping support is mounted on the housing.

[0029] Said at least one body relief may be heard on the recess, in particular along an edge of the recess.

[0030] Said at least one air flow inlet can be configured to be connected to a source of air supply at a regulated temperature. In this case, the housing advantageously allows control of the air flow for controllable regulation of the temperature of different zones of the building, for heating or cooling.

[0031] In one embodiment, the main body further comprises at least one fresh air flow inlet, intended to be connected to a fresh air supply source.

[0032] Thus, the housing allows both an air flow for temperature regulation of different areas of the building and an air flow for ventilation of different areas of the building with fresh air. This is particularly advantageous when the housing is used in a building for professional use.

[0033] By "fresh air" is meant unpolluted air coming from outside the building or from recirculation after a purification treatment.

[0034] Said at least one fresh air inlet and said at least one air inlet at a regulated temperature can be connected to the cavity.

[0035] Alternatively, or in addition, the body may comprise a fresh air cavity, separate from the cavity, comprising at least one fresh air flow inlet and at least one fresh air flow outlet.

[0036] The fresh air cavity may comprise at least one fresh air outlet at the level of said at least one reception interface, in particular near an air outlet of the cavity.

[0037] The outlet orifice of the tapping support can allow the fresh air cavity to communicate with an air duct. Stitching support

[0038] The invention also relates, according to another of its aspects, in combination with the above, to a tapping support for an air flow distribution box as defined above comprising at least one frame made of expanded polypropylene defining an outlet orifice of the air flow outlet to communicate the cavity with an air duct, and at least one flow regulation device arranged across the outlet orifice to regulate the air flow passing through the air flow outlet of the box.

[0039] Said at least one frame may comprise a first part and a second part fixed together in a removable manner.

[0040] The regulating device may comprise at least one portion enclosed between the first part and the second part of the frame so that its translation along the axis of the outlet orifice is blocked.

[0041] The regulating device may comprise a movable flap, the movement of the flap being configured to regulate the flow of air passing through the air flow outlet of the housing.

[0042] The shutter is motorized by a motor enclosed between the first part and the second part of the frame.

[0043] The tapping support may include a control card for the regulation device.

[0044] The control card can be removably mounted on an external part of the frame, in particular by snap-fastening.

[0045] The control card may, alternatively, be enclosed between the first part and the second part of the frame so that its translation along the axis of the outlet orifice is blocked.

[0046] The stitching support may be a stitching cassette, in particular with a width less than or equal to 50 mm. Flow control system

[0047] The invention also relates, according to another of its aspects, in combination with the above, to a system for regulating the flow rate of a plurality of zones of a building comprising:

[0048] - an air flow distribution box as defined previously;

[0049] - an air supply source connected to said at least one air flow inlet of the case;

[0050] - at least one tapping connected to said at least one tapping support.

[0051] The air supply source may supply air at a regulated temperature. Brief description of the drawings

[0052] The invention may be better understood by reading the detailed description which follows, non-limiting examples of its implementation, and by examining the attached drawing, in which

[0053] [Fig-1] illustrates, in perspective, in a schematic manner, an example of a housing according to the invention,

[0054] [Fig.2] is an enlargement of [Fig.l] according to II,

[0055] [Fig.3] illustrates, in perspective, in isolation, a support for tapping the housing of [Fig.l],

[0056] [Fig.4] illustrates, partially, a longitudinal section of the tapping support of the [Fig.3],

[0057] [Fig.5] illustrates, partially, in perspective, a section of a first part of the frame of the stitching support of [Fig.3],

[0058] [Fig.6] illustrates, in perspective, a second part of the frame of the support of [Fig.3],

[0059] [Fig.7] shows a similar view to [Fig.6] in which the flow control device climbed onto the second part,

[0060] [Fig.8] illustrates, partially, in perspective, an upper part of the support of stitching of [Fig.3],

[0061] [Fig.9] illustrates, in perspective, schematically, another example of a housing according to the invention,

[0062] [Fig. 10] illustrates, in perspective, schematically, another example of a housing according to the invention,

[0063] [Fig. 11] illustrates, in perspective, schematically, another side of the housing of [Fig. 10], and

[0064] [Fig. 12] illustrates, schematically, an example of a flow regulation system according to the invention. Detailed description

[0065] In the remainder of the description, elements that are identical or have identical functions bear the same reference sign. For the purposes of conciseness of this description, they are not described with respect to each of the figures, only the differences between the embodiments being described.

[0066] In the figures, the actual proportions have not always been respected, for the sake of clarity.

[0067] [Fig.l] illustrates an example of an air flow distribution housing 1 according to the invention.

[0068] The housing 1 comprises a main body 2.

[0069] The body 2 is for example made entirely of expanded polypropylene.

[0070] The body 2 has a generally parallelepiped shape and comprises a cover wall 3, a bottom wall 4 and side walls 5 which together form a cavity 6.

[0071] The cavity 6 comprises a rectangular air flow inlet 10 on a side wall 5.

[0072] The cavity 6 also comprises a plurality of air flow outlets 11, in this example four, on another side wall 5.

[0073] The body 2 also comprises a receiving interface 15 for a tapping support 20 at each outlet 11, as particularly illustrated in the enlargement of [Fig.2].

[0074] Each receiving interface 15 is formed by a recess 14 extending from an edge 16 between the side wall 5 and the cover wall 3 and forming an opening 17 on a portion of the cover wall 3.

[0075] The housing 1 also comprises tapping supports 20, in this example three cassettes, removably mounted on the reception interface 15.

[0076] In [Fig.l], one of the supports 20 is dismantled, another is being assembled and a last one is mounted. The assembly of each support 20 is done, in this example, by translation along an axis X parallel to a wall plane P of the lateral surface 5 carrying the outlets 11.

[0077] Each tapping support 20 comprises a frame 21 made of expanded polypropylene which defines an outlet orifice 22.

[0078] Each support 20 comprises a motorized flap 23 arranged across the outlet orifice 22 to regulate the air flow passing through the outlet 11.

[0079] As illustrated in [Fig.3], the frame 21 comprises on a peripheral edge 25 a support relief 26 projecting in the shape of a U.

[0080] The support relief 26 is configured to fit into a body relief 27 on a peripheral edge 28 of the recess 14 of the receiving interface 15. The body relief 27 is, in this example, a hollow and extends in the shape of a U, the branches of the U opening at the opening 17 of the cover wall 3. The body relief 27 thus partially surrounds the opening 11.

[0081] When mounting a support 20, the support relief 26 is inserted into the body relief 27. At least one of the support relief 26 and the body relief 27 is elastically deformed when the support 20 is force-mounted on the body 2.

[0082] Each support 20 also comprises a sealing relief 30 extending over the peripheral edge 25 and over a rear face 31 of the frame 21 intended to be opposite the receiving interface 15.

[0083] The sealing relief 30 is protruding and extends from one end 32 of one of the branches of the U of the support relief 26 to the end 32 of the other branch.

[0084] The sealing relief 30 is inserted into a sealing hollow 33 in the recess 14 of the receiving interface 15, when the support 20 is mounted on the body 2. At least one of the sealing relief 30 and the sealing hollow 33 is elastically deformed.

[0085] The sealing relief 30 and the support relief 26 completely surround the orifice 22, thus preventing the passage of an air flow through said air flow outlet other than through the outlet orifice 22.

[0086] The frame 21 of each support 20 comprises a first part 40 and a second part 41 assembled together in a removable manner, each of the parts comprising an orifice 45.

[0087] The first part 40 comprises a snap-in recess 42, which extends all around the orifice 45, as illustrated in FIGS. 4 and 5.

[0088] The second part 41 comprises a snap-in relief 46, which extends all around the orifice 45, as illustrated in FIGS. 4, 6 and 7. The relief 46 and the hollow 42 are configured to cooperate by elastic deformation to form the frame 21.

[0089] The first part 40 and the second part 41 each comprise receiving zones 50 for receiving and enclosing elements in the frame 21.

[0090] As illustrated in Figures 6 and 7 for the second part 41, one of the receiving zones 50 is a zone 51 for receiving a motor 52 of the flap 23.

[0091] Another zone 53 makes it possible to enclose a bearing 54 in which an axis of the flap 23 is inserted.

[0092] As visible in [Fig.8], the support 22 also includes a control card 35 for the motorized shutter 23. The control card 35 is enclosed between the two parts 40 and 41 by lugs 36.

[0093] Thus, the assembly and disassembly of each support 20 is simple to implement and can be carried out without tools.

[0094] The second part 41 also includes a circular rim 60 around the orifice 22 allowing a connection 61 of an air duct to be made.

[0095] [Fig.9] illustrates a variant of housing 1 according to the invention.

[0096] In this variant the height H of the housing 1 is reduced compared to the embodiments of [Fig.l], to be installed in a smaller space.

[0097] The diameter of the rim 60 of the supports 20 is unchanged, to allow the use of conventional tappings 61. The cavity of the body 2 having a height less than the rim diameter 60, a half-hood 65 is installed in the orifice 22 of the supports 20. In addition, a half-flap 23 is used.

[0098] In another variant, illustrated in figures 10 and 11. The body 2 comprises two separate cavities: a cavity 6 for air at a regulated temperature, and a cavity 70 for fresh air.

[0099] The fresh air cavity 70 is connected to a fresh air inlet 71.

[0100] The cavity 70 also includes a fresh air outlet 72 at each outlet 11 of the cavity 11. In this example, each fresh air outlet 72 is adjacent to an air outlet 11 together forming a circle. The orifice 22 of the support 20 is opposite this circle and therefore the fresh air outlet 72 and the air outlet 11.

[0101] Thus, the rim 60 always has the same diameter allowing the use of conventional tappings 61.

[0102] [Fig. 12] illustrates a flow regulation system for a plurality of zones Zl, Z2 and Z3 of a building B comprising:

[0103] - an air flow distribution box 1;

[0104] - an air supply source 80 connected to the air flow inlet 10 of the housing 1 ;

[0105] - connected tappings 61.

[0106] The air supply source 80 may provide air at a regulated temperature. For example, the air supply source 80 is a heat pump.

[0107] The invention is not limited to the examples which have just been described.

[0108] In particular, the box 1 may comprise a different number of reception interfaces, for example between 2 and 10.

Claims

Claims

1. Air flow distribution housing (1) for a system for supplying or extracting air from a plurality of zones (Z1; Z2; Z3) of a building (B), comprising: - a main body (2) at least partially made of expanded polypropylene, the main body (2) comprising: O a cavity (6) comprising at least one air flow inlet (10), intended to be connected to an air supply source (80), and at least two air flow outlets (11) in fluid communication with the air flow inlet (11); O at least one receiving interface (14) for a tapping support (20) at one of said at least two outlets (11);- at least one tapping support (20) removably mounted on said at least one receiving interface (15) of the main body (2), said at least one tapping support (20) comprising: O at least one frame (21) made of expanded polypropylene and defining an outlet orifice (22) of the air flow outlet to communicate the cavity (6) with an air duct (61); O at least one flow regulation device (23) arranged through the outlet orifice (22) to regulate the air flow passing through the air flow outlet (11).;

2. Housing (1) according to claim 1, wherein said at least one receiving interface (15) comprises at least one body relief (27), the frame (21) of the tapping support (20) comprising at least one support relief (26), said at least one body relief (27) and said at least one support relief (26) being configured to cooperate when the support (20) is mounted on said at least one receiving interface (15) for fixing to hold the tapping support (20) on said at least one receiving interface (15).

3. Housing (1) according to the preceding claim, in which at least one body relief (27) extends on a wall of the main body (2) and partially surrounds the outlet (11) at the level of said at least one receiving interface (15).

4. Housing (1) according to one of claims 2 and 3, in which the cooperation between said at least one body relief (27) and said at least one support relief (26) is done by force by deformation elastic of said at least one body relief (27) and / or of said at least one support relief (26).

5. Housing (1) according to one of claims 2 to 4, wherein said at least one body relief (27) is hollow and said at least one support relief (26) is protruding.

6. Housing (1) according to any one of the preceding claims, wherein at least one of the main body (2) and said at least one tapping support (20) comprises a sealing relief (30; 33) on an outer surface (31: 15) at least partially surrounding the outlet (11) at said at least one receiving interface (15), the sealing relief (30: 33) being configured to prevent the passage of an air flow through said air flow outlet (11) other than through the outlet orifice (22) of the tapping support (20).

7. Housing (1) according to any one of the preceding claims, in which the body (2) comprises side walls (5), a bottom wall (4) and a cover wall (3) configured to form the cavity (6), at least one of the side walls (5) defining a wall plane (P), the tapping support (20) being configured to be mounted and dismounted from the main body (2) by translation in a plane parallel to the wall plane (P).

8. Housing (1) according to the preceding claim, wherein at least one side wall (5) comprises a recess (14) extending from an edge (16) of the side wall (5) and forming an opening (17) on a portion of the bottom wall (4) or the cover wall (3), said at least one receiving interface (15) being at least partially formed by the recess (14), the tapping support (20) being configured to be mounted and dismounted from the main body (2) by translation in the recess (14) and through the opening (17) on the wall portion.

9. Support (20) for tapping an air flow distribution box (1) according to any one of the preceding claims comprising at least one frame (21) made of expanded polypropylene defining an outlet orifice (22) of the air flow outlet to communicate the cavity (6) with an air duct (61), and at least one flow regulation device (23) arranged through the outlet orifice (22) to regulate the air flow passing through the air flow outlet (11) of the box (1).

10. Support (20) for stitching according to the preceding claim, in which said at least one frame (21) comprises a first part (40) and a second part (41) fixed together in a removable manner.

11. Support (20) for tapping according to the preceding claim, in which the regulating device (23) comprises at least one portion enclosed between the first part (40) and the second part (41) of the frame (21) so that its translation along the axis of the outlet orifice (22) is blocked.

12. A support (20) for tapping according to one of claims 10 and 11, in which the regulating device (23) comprises a movable flap, the movement of the flap being configured to regulate the air flow passing through the air flow outlet (11) of the housing (1), the flap being motorized by a motor (52) enclosed between the first part (40) and the second part (41) of the frame (21).

13. Support (20) for tapping according to any one of claims 10 to 12, comprising a control card (35) for the regulation device (22), the control card (35) being removably mounted on an external part of the frame, in particular by snap-fastening.

14. System for regulating the flow of a plurality of zones of a building (B) comprising: - an air flow distribution box (1) according to any one of claims 1 to 8; - an air supply source (80) connected to said at least one air flow inlet of the box (1); - at least one tapping (61) connected to said at least one tapping support (20).

15. A system according to the preceding claim, wherein the air supply source (80) provides air at a regulated temperature.

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