FR3082287A1 - AIR DISTRIBUTION DEVICE IN THE INTERIOR SPACE OF A CONSTRUCTION - Google Patents

Abstract

Device for distributing air in the interior space of a building, said device comprising a box (2) comprising at least one inlet (3) for outside air, one inlet (4) for interior air and two outlets ( 5) air outlet, each connectable via a duct to a ventilated area of the construction. The box (2) is divided into two non-communicating chambers (7, 8) each equipped with at least two air outlets (9; 10) and provided with one (7), called the first chamber (7), of the inlet (3) of outside air, the other (8), called the second chamber (8), of the inlet (4) of interior air of the box (2), and at least one of the outlets (9) of air from the first chamber (7) and one of the air outlets (10) of the second chamber (8) are formed in the same air outlet opening (5) of the box, these air outlets from the same air outlet mouth being each provided with a shutter member (111, 121) controlled with independent actuation.

Description

FIELD OF THE INVENTION

The invention relates to an air distribution device, in particular for the distribution of air in the interior space of a building, comprising a multiplicity of zones to be ventilated.

It relates more particularly to an air distribution device comprising at least one box, comprising at least two air inlets and two air outlet outlets, said air inlets being able to be supplied, one, called outside air inlet, air taken outside the building, the other or another, said indoor air inlet, air taken inside the building, and said air outlet vents each being connectable via a duct to a zone to be ventilated.

PRIOR ART

Indoor air quality, its effect on human health and its economic and social costs are of increasing concern to the public. Several studies have shown that it is essential to ventilate closed rooms, by providing fresh air from outside, in order to ensure a healthy atmosphere.

On the other hand, buildings are becoming more and more insulated and airtight. This results in an increasingly lower consumption of heating. This has enabled, in recent years, the democratization of air heating systems.

The increase in insulation and airtightness of buildings has at the same time contributed to increasing the risk of indoor pollution and its effects on the health of occupants and housing, since construction does not breathe more, as was the case for less airtight buildings.

In this context, the most conventional system consists in treating the ventilation of fresh air by a system independent of the air conditioning / heating system. The fresh air ventilation is then treated with a conventional VMC (controlled mechanical ventilation) single flow system, comprising fresh air inlets in the main room or rooms and stale air extraction outlets in the technical parts. However, this solution is not very effective. In fact, the combination of a single-flow VMC with a duct type air conditioning system can generate aeraulic disturbances with the air inlets located in each main room.

For these reasons, the main solution proposed at present is to use dual-flow VMC systems. The extraction is carried out as a simple flow in the service rooms and the supply of fresh air is done from a single entry, most often located under the eaves or on the roof, up to the main rooms, through a network of ducts connected to a fan motor. However, this solution turns out to present a significant cost price, because of the need to multiply the groups and the ventilation ducts. This is why, for a few years now, the main rooms have been supplied with outside air in the same ductwork as indoor air.

In practice, the heat treated indoor air and the outside air are mixed before being propelled through the building's air distribution network. This results, due to the compulsory presence of a mixing chamber, a bulky device and the impossibility of modulating room by room the air flows outside and inside air according to the needs, except to multiply the number of the device's mixing chambers.

PURPOSE AND SUMMARY

An object of the invention is to provide an air distribution device the design of which makes it possible to dispense with a mixing chamber, without detracting from the possibility of a fine mixing of the indoor and outdoor air supplies.

To this end, the subject of the invention is an air distribution device, in particular for the distribution of air in the interior space of a construction comprising a multiplicity of zones to be ventilated, said device comprising at least one box comprising at least two air inlets and two air outlet openings, said air inlets being able to be supplied, one, called outside air inlet, with air taken from outside the building, l another or another, said interior air intake, in air taken inside the construction, and said air outlet vents each being connectable by means of a sheath to a zone to be ventilated, characterized in that the box is divided into at least two non-communicating chambers inside said box, said rooms each being equipped with at least two air outlets and being provided one, called first chamber, with the inlet d outside air, the other, called the second chamber, of the interior air inlet of the box, and in that for at least some of the air outlets of the first and second chambers, one of the air outlets of the first chamber and one of the air outlets of the second chamber are formed in the same air outlet mouth of the box, these air outlets of the same air outlet mouth being each provided with a shutter member, said shutter members being independent in displacement and each equipped with a drive control member in displacement of said shutter member for the movement of said shutter member between an open position and a closed position .

The design of the cabinet divided into at least two chambers using a partitioning system avoids any communication between said chambers inside the cabinet. This absence of communication between chambers between them, which extends into the outlet openings of the box implies that the content of the two chambers is mixed downstream of each outlet outlet of the box, at the level of the distribution sheath.

Thus, the distribution duct acts both as a distribution element and as a mixture of outside air and indoor air, the indoor air generally being heat treated.

The presence of independent movable shutter members moving at the outlet of each chamber makes it possible to precisely regulate the supply of outside air and the supply of indoor air, in order to surely respect the regulatory constraints in terms fresh air supply.

According to one embodiment of the invention, the shutter member of at least one of the air outlets is a butterfly valve, and the drive control member in movement of said shutter member, a motor. This results in simplicity of operation.

According to an embodiment of the invention, the device comprises at least one generator of an air flow, such as a fan. Preferably, the device comprises at least two generators of an air flow.

Thanks to the presence of at least one generator of an air flow, the device forms both an air distribution and fan device, that is to say of forced air circulation.

According to one embodiment of the invention, the or at least one of the air flow generators is arranged in one of the chambers of the box. This results in a compactness of the device.

To further improve the compactness, according to one embodiment, at least one of the air flow generators is arranged in one of the chambers of the box and the other air flow generator in the other chamber of the caisson.

According to one embodiment of the invention, the or at least one of the air flow generators is disposed in the first chamber of the box, this first chamber also containing at least one filter disposed between the air inlet outside and the air flow generator of said chamber.

According to one embodiment of the invention, the or at least one of the air flow generators is arranged in the second chamber of the box which also houses at least part of a heating and / or cooling system air, this at least part of the heating and / or cooling system being located between the air flow generator and the air outlets of said chamber.

As a variant or in addition to the embodiments described above, according to one embodiment of the invention, the or at least one of the air flow generators is arranged in a housing equipped with at least one inlet air and an air outlet, said air outlet of the housing being connectable to one of the air inlets of the box.

According to one embodiment of the invention, at least one of the air outlet vents extends externally projecting from the wall of the box to form a section of duct. The duct section is able to cooperate by interlocking with a sheath. This results in easy positioning of the sheath on the outlet mouth by simple interlocking.

According to one embodiment of the invention, the device comprises a control unit configured to control at least the drive control members in movement of the shutters of the air outlets of the first and second chambers. This control unit allows automatic positioning of the shutter members by automatic actuation of the drive control members in displacement of the shutter members.

According to one embodiment of the invention, the device comprises means for supplying data input to said control unit, and the control unit is configured to control at least the drive drive control members of the shutters of the air outlets of the first and second chambers according to said data.

According to one embodiment of the invention, the means for supplying data input to said control unit comprise at least one temperature sensor and one air quality sensor and the control unit is configured for, at the same outlet air outlet of the box, control the drive control member in displacement of the shutter member of the air outlet of the first chamber at least according to the data provided by the air quality sensor and the drive control member in displacement of the shutter member of the air outlet of the second chamber at least as a function of the data supplied by the temperature sensor.

According to one embodiment of the invention, at least one of the air inlets in the box is equipped with a shutter member and with a control member for moving said shutter member between a closed position and an open position. This results in additional adjustment possibilities of the air distribution device.

BRIEF DESCRIPTION OF THE FIGURES

The invention will be clearly understood on reading the following description of exemplary embodiments, with reference to the appended drawings in which:

- Figure 1 shows a schematic view of a construction equipped with an air distribution device according to the invention.

- Figure 2 shows a schematic view of a first embodiment of an air distribution device according to the invention.

- Figure 3 shows a schematic view of a second embodiment of an air distribution device according to the invention.

- Figure 4 shows a schematic view of a third embodiment of an air distribution device according to the invention.

- Figure 5 shows a schematic view of a fourth embodiment of an air distribution device according to the invention.

- Figure 6 shows an overview of the air distribution device according to the embodiment of Figure 3.

- Figure 7 shows a perspective view of the box of the air distribution device of Figure 3.

- Figure 8 shows a perspective view of the housing of the air distribution device of Figure 3.

- Figure 9 shows a partial perspective view of the box of the air distribution device of Figure 3, some parts having been removed to better view the interior of the box.

FIG. 10 represents a partial perspective view of one half of the box of the air distribution device of FIG. 3.

- Figure 11 shows a partial perspective view of the box of the air distribution device as shown in Figure 3, some parts having been removed to better view the inside of the box.

FIG. 12 represents a partial perspective view of the box of the air distribution device as shown in FIG. 4, certain parts having been removed to better visualize the interior of the box.

- Figure 13 shows a partial perspective view of the box of the air distribution device as shown in Figure 2, some parts having been removed to better view the interior of the box.

- Figure 14 shows a schematic front view of a box equipped with two air outlet vents.

DETAILED DESCRIPTION

As mentioned above, the subject of the invention is an air distribution device 1 capable of allowing, in the state coupled to a preexisting ventilation device or in the state equipped with at least one flow generator 13 of air, to introduce into the interior space of a construction 30 comprising a multiplicity of zones 31 to be ventilated, a flow of air putting the interior space of the construction in slight overpressure with respect to the exterior atmosphere.

This air distribution device 1 can be installed in the attic of construction 30, as illustrated in FIG. 1.

This device 1 comprises a box 2 comprising at least two air inlets and at least two air outlet outlets 5. The number of air outlet vents is a function of the number of zones 31 of the construction to be ventilated, each air outlet vent 31 being connectable by means of a sheath 32 to the area 31 to be ventilated.

This sheath 32 is generally provided, at its end, with an air diffuser as shown.

In the examples shown, the box 2 is equipped each time with two air outlet vents 5. The box 2 is delimited by a wall 24 and each air outlet mouth extends externally projecting from the wall 24 of the box to form a section 19 of conduit. This results in ease of fitting, by fitting, the sheath 32 on the air outlet mouth 5 by fitting the sheath 32 on the air outlet mouth 5.

The air inlets of the box 2 include an outside air inlet 3 capable of being supplied with air taken from outside the building 30.

For this purpose, in the example shown, a sheath connects an opening formed in the roof of the construction to the inlet 3 of outside air of the box.

The air inlets of box 2 also include one or more interior air inlets 4. In the example shown, the box 2 is each time equipped with two interior air inlets 4 able to be each supplied with air taken from inside the building, in a different area of the building, as illustrated Figure 1 where a first indoor air inlet 4 is connected by a sheath to a construction area taken at the level of the building floor, while the second indoor air inlet 4 is connected by a duct a construction area taken at the ground floor of the construction.

The box 2 is in the form of a hollow body, generally polygonal, shown here in a generally parallelepiped shape in the figures other than FIG. 13. This box 2, which comprises at least one body and a cover, delimits an enclosure.

It should be noted that each interior air inlet 4 can also be equipped with a shutter member 22 and with a member 23 for controlling the movement of said shutter member 22, between a closed position and an open position.

The box 2 is, using a partitioning system 6 divided into two non-communicating chambers inside the box 2. Thus, any transfer of air from one room to another is, inside of the box 2, prevented by the partitioning system 6.

This partitioning system 6 is here formed by an L-shaped wall more particularly visible in FIG. 10. One of the L-shaped branches of this wall divides each air outlet port 5 in two. This wall is also arranged inside the box 2, so that one of the rooms, called the first room 7 is equipped with the inlet 3 of outside air from the box and the other room, called the second room 8 is fitted with one or more interior air intakes 4 of the box.

Each chamber of the box is equipped with at least two air outlets. Generally, the number of air outlets in each chamber is equal to the number of air outlet outlets 5 in the box.

The device here comprising two air outlet openings 5, two air outlets are provided per room. The air outlets of the first chamber 7 are shown in 9, while the air outlets of the second chamber 8 are shown in 10. Each time, an air outlet 9 of the first chamber 7 and an outlet 10 of air from the second chamber 8 are formed in the same air outlet mouth 5.

These air outlets are, at the level of the air outlet mouth 5, separated from each other by the compartment partitioning system which also serves to delimit chambers 7 and 8. Thus, when a sheath is attached to the air outlet mouth 5, it can be supplied with both air from the first chamber 7 and air from the second chamber 8 of the box 2. The mixture between the air flows takes place in the sheath 32.

Each outlet 9, 10 of the same air outlet mouth 5 is provided with a shutter member. Thus, the air outlet 9 of the first chamber 7 is provided with a shutter member 111, while the air outlet of the second chamber 8 is provided with a shutter member 121.

Thanks to these shutter members, the sheath 32 attached to the air outlet mouth 5 can be supplied only with air from the first chamber or only with air from the second chamber.

These shutter members 111 and 121 are independent shutter members in displacement and each shutter member is equipped with its displacement drive control member. Thus, the member 111 for closing the air outlet 9 from the first chamber 7 is a butterfly valve and the displacement drive control member shown at 112 in the figures is a motor.

Similarly, the member 121 for closing the air outlet 10 of the second chamber 8 is a butterfly valve, the displacement drive control member shown at 122 in the figures is a motor.

The motors are arranged diametrically opposite, on the section 19 of the pipe projecting from the wall, and the butterfly valves pivot around aligned axes as illustrated in FIG. 13.

Each obturation member takes the form of a portion of a disc pivoting around a tree.

The shaft extends between the compartment partitioning system and the drive shaft, coaxially with said drive shaft, this pivot shaft forming an extension of the drive shaft.

Thus, the movement of each shutter member between the closed position and the open position is effected by simply driving the motor shaft in rotation. Due to the presence of a shutter member at the outlet, this results in the possibility of supplying the duct which can be connected to the air blowing mouth 5, that is to say solely from the air coming from the first chamber, either only from the air coming from the second chamber, or from air coming from the two chambers, the mixing taking place in the sheath.

To allow, at each chamber, an air entrainment from the air inlet (s) towards the air outlets, the air distribution device 1 comprises at least one generator 13 of air flow produced here in the form of a fan. Indeed, although the air distribution device 1 can be used in connection with air supply units pre-equipping the construction, preferably, the air distribution device 1 also forms a ventilation device.

Each air flow generator 13 is, whatever its location in the device, configured to generate a flow of air flowing from the air inlet (s) of one of the chambers to the outlet (s) air from said room.

These air generators therefore make it possible to introduce into the interior space of the construction an air flow generally putting the interior space of the construction in slight overpressure relative to the exterior atmosphere.

The locations of the air generators can be diverse and varied, depending on the configuration desired for the air distribution device 1.

Preferably, the or at least one of the generators 13 of air flow is disposed in one of the chambers of the box 2. Thus, in the example shown in FIG. 2, one of the generators 13 of flow of air is placed in one of the chambers of the box 2, while the other generator 13 of air flow is placed in the other of the rooms of the box 2.

In the example shown in the figures, one of the air generators 13 is disposed in the first chamber of the box, while the other air generator 13 is disposed in a housing 16 equipped with at least one inlet 17 of air and an air outlet 18, said air outlet 18 being connectable to one of the air inlets of box 2.

Finally, in the example shown in FIG. 5, each of the air generators is placed in a box 16 equipped with at least one air inlet 17 and one air outlet 18, the outlet 18 of air from one of the boxes 16 being connectable to the interior air inlet of the box 2, while the air outlet 18 of the other box is connectable to the outside air inlet of the box 2.

Regardless of the embodiment chosen, when one of the generators 13 of air flow is disposed in the first chamber 7 of the box, this first chamber 7 also contains at least one filter 14 disposed between the inlet 3 of outside air and the air flow generator 13 of said chamber 7.

Likewise, when one of the generators 13 of air flow is placed in the second chamber 8 of the box 2, the latter also houses at least part of an air heating and / or cooling system 15 . This at least part of the heating and / or cooling system 15 housed inside said chamber is located between the air flow generator 13 and the air outlets 10 of said chamber 8.

This second chamber 8 of the box 2 can also house a filter 25 disposed between the air flow generator 13 and the interior air inlet (s) 4 of said second chamber 8.

When the outside air inlet 3 of the box 2 is connected to the outlet of a box 16 housing an air flow generator, this box 16 also contains a filter disposed between the air inlet 17 of the box 16 and the air flow generator 13.

When the interior air inlet of the box 2 is connected to the outlet of a box 16 housing an air flow generator, the box also contains a system for heating and / or cooling the air disposed between the air flow generator and the air outlet 18 of the housing 16 and optionally a filter disposed between the air inlet (s) 17 of the housing 16 and the air flow generator 13.

To complete the assembly, the air distribution device 1 comprises a control unit 20 configured to control at least the members 112, 122 for controlling the movement of the members 111, 121 for closing the outputs 9, 10 air from the first and second chambers 7 and 8.

This control unit 20 includes electronic and / or computerized data processing means, such as a processor associated with a working memory. When the expression control unit is configured for is used, it means that the processor understands instructions to perform the action. This control unit 20 is therefore also configured to control the air flow generators, and in particular to control the electronic power circuit which supplies electrical energy to each air flow generator. This control unit is also configured to control the heating and / or cooling system. This heating and / or cooling system 15 can be formed by a simple electrical resistance. In this case, the heating and / or cooling system 15 may be entirely disposed in the box 2 and the control unit is configured to control the electronic and / or power electronic circuit which supplies electrical energy to the electrical resistance. This heating and / or cooling system 15 may comprise, at the level of part 151 of the heating and / or cooling system 15 integrated into the distribution device 1, an air / air or air / water heat exchanger. This heat exchanger, said interior, can be connected, as in the example shown in FIG. 1, to a remote heat exchanger 152 said exterior by a heat-transfer fluid connection, the two heat exchangers playing one, the role of an evaporator, the other, the role of the condenser.

In this case, the remote heat exchanger acts as a condenser in summer when the device is used in air conditioner mode and as an evaporator in winter when the device is used in heat pump mode, for building heating.

Means of forced circulation of air are also provided, such as a fan, making it possible to circulate the outside air through the remote heat exchanger and a compressor making it possible to circulate the heat transfer fluid in the fluid connection between indoor and outdoor heat exchangers.

The indoor heat exchanger plays the reverse role of the outdoor exchanger, i.e. the role of an evaporator in device cooling mode and a condenser in heating mode.

In the case where the device comprises, at at least one of the air intakes of the box, a shutter member 22 and a drive control member 23 for moving said shutter member 22, l 'control unit is configured to control the moving control member 23.

To allow such control, the air distribution device 1 comprises means 21 for supplying data input to said control unit 20, and the control unit 20 is configured to control at least the members 112, 122 for controlling the movement of the members 111, 121 for closing the air outlets 9 and 10 of the first and second chambers 7 and 8 according to said data, but also the air flow generator and the heating system and / or cooling and optionally the drive control members in movement of the shutters of the air inlets when they are present at least as a function of said data.

The means 21 for providing data entry can have a large number of forms. These means 21 for supplying data input to said control unit 20 comprise at least one temperature sensor 211 and an air quality sensor 214 and the control unit is configured for, at the same level. air outlet outlet 5 of the box, piloting the drive control member 112 in movement of the member 111 for closing the air outlet 9 of the first chamber 7 at least as a function of the data provided by the air quality sensor 214 and the member 122 for controlling the movement of the member 121 for closing the air outlet 10 of the second chamber 8 at least as a function of the data supplied by the sensor 211 of temperature.

The air quality sensor can be a CO- sensor, a humidity sensor or the like. The signals generated by said sensors are capable of being transmitted to the control unit by wired or wireless link. The data input supply means can also include a man / machine interface and / or a predefined data storage memory, configured to send a temperature setpoint and an air quality setpoint to the control unit. by area to be ventilated or data capable of allowing the calculation of said setpoints.

The man / machine interface can be formed by a remote control, a keyboard, a thermostat 212, a programmer 213 or the like.

The control unit is configured to generate control signals from the data measured by the sensors and the temperature and air quality setpoints received or stored or calculated:

-members for driving the displacement of the members for closing the air outlets of the box,

- air flow generators,

-the heating and / or cooling system, and possibly,

-members for controlling the movement of the organs for closing the air intakes of the box when they are present.

Thanks to this possibility of acting on a large number of actuators, this results in fine control of the air circulating in the construction.

Claims (12)

1. Device (1) for distributing air, in particular for distributing air in the interior space of a construction (30) comprising a multiplicity of zones (31) to be ventilated, said device (1) comprising at least a box (2) comprising at least two air inlets (3, 4) and two air outlet openings (5), said air inlets (3, 4) being able to be supplied, one ( 3), called outside air inlet (3), in air taken outside the building (30), the other (4) or another, said inside air inlet (4), in air taken inside the building (30), and said air outlet openings (5) each being connectable via a sheath (32) to a zone (31) to be ventilated, characterized in that the box (2) is divided into at least two chambers (7, 8) not communicating inside said box (2), said chambers (7; 8) being each equipped with at least two air outlets (9; 10) and being provided with one (7), called first chamber (7), of the inlet (3) of outside air, the other (8), called second chamber (8), of the inlet (4) of interior air of the box (2), and in that for at least some of the air outlets (9; 10) of the first and second chambers (7; 8), one of the air outlets (9) of the first chamber (7) and one of the air outlets (10) from the second chamber (8) are formed in the same air outlet mouth (5) of the box, these air outlets from the same air outlet mouth are each provided with a shutter member (111, 121), said shutter members (111, 121) being independent in movement and each equipped with a drive drive control member (112, 122) of said member (111, 121) shutter for the displacement ement of said shutter member (111, 121) between an open position and a closed position. 2. Device (1) for air distribution according to claim 1, characterized in that the member (111, 121) for closing at least one of the air outlets (9, 10) is a butterfly valve, and the member (112, 122) for controlling the displacement movement of said shutter member (111, 121), a motor. 3. Device (1) for air distribution according to one of claims 1 or 2, characterized in that it comprises at least, preferably at least two generators (13) of an air flow, such as 'a fan. 4. Device (1) for air distribution according to claim 3, characterized in that the or at least one of the generators (13) of air flow is disposed in one of the chambers (7, 8) of the box (2). 5. Device (1) for air distribution according to one of claims 3 or 4, characterized in that the or at least one of the generators (13) of air flow is disposed in the first chamber (7 ) of the box (3), this first chamber (7) also containing at least one filter (14) disposed between the inlet (3) of outside air and the generator (13) of air flow from said chamber (7 ). 6. Device (1) for air distribution according to one of claims 3 to 5, characterized in that the or at least one of the generators (13) of air flow is disposed in the second chamber (8 ) of the box (3) which also houses at least part of an air heating and / or cooling system (15), this at least part of the heating and / or cooling system (15) being located between the air flow generator (13) and the air outlets (10) of said chamber (8). 7. Device (1) for air distribution according to one of claims 3 to 6, characterized in that the or at least one of the generators (13) of air flow is disposed in a housing (16) fitted with at least one air inlet (17) and one air outlet (18), said air outlet (18) from the housing being connectable to one of the air inlets (3, 4) air in the box (2). 8. Device (1) for air distribution according to one of claims 1 to 7, characterized in that at least one of the air outlet vents (5) extends externally projecting from the wall (24) of the box (2) to form a section (19) of conduit. 9. Device (1) for air distribution according to one of claims 1 to 8, characterized in that it comprises a control unit (20) configured to control at least the organs (112, 122) for controlling the driving movement of the members (111, 121) for closing the air outlets (9, 10) of the first and second chambers (7, 8). 10. Device (1) for air distribution according to claim 9, characterized in that it comprises means (21) for supplying data input to said control unit (20), and in that the piloting unit (20) is configured to pilot at least the members (112, 122) for controlling the displacement movement of the members (111, 121) for closing the air outlets (9, 10) of the first and second air chambers (7, 8) according to said data. 11. Device (1) for air distribution according to claim 10, characterized in that the means (21) for supplying data input to said control unit (20) comprise at least one temperature sensor (211) and an air quality sensor (214) and in that the control unit (20) is configured to, at the same outlet air outlet (5) from the box, control the member (112) for controlling the movement of the member (111) for closing the air outlet (9) of the first chamber (7) at least as a function of the data supplied by the quality sensor. air (214) and the member (122) for controlling the movement of the member (121) for closing the air outlet (10) of the second chamber (8) at least according to the data supplied by the temperature sensor (211). 12. Device (1) for air distribution according to one of claims 1 to 11, characterized in that at least one of the air inlets (3, 4) of the box (2) is equipped with a shutter member (22) and a member (23) for controlling the movement of said shutter member (22) between a closed position and an open position.